CN101925791A

CN101925791A - Fin tube assembly for air cooled heat exchanger and method of manufacturing the same

Info

Publication number: CN101925791A
Application number: CN2008801256520A
Authority: CN
Inventors: R·纳迪格
Original assignee: Holtec International Inc
Current assignee: Holtec International Inc
Priority date: 2007-11-30
Filing date: 2008-12-01
Publication date: 2010-12-22
Also published as: EP2225529A1; US20090173485A1; WO2009073638A1

Abstract

A finned tube assembly for an air cooled condenser. The finned tube assembly comprises a non-circular core tube and at least one set of fins that are welded directly to the core tube. The core tube can be formed by a plurality of longitudinal transverse sections that are seam welded together. In another embodiment, the invention is a fined tube assembly having an outer surface that is made corrosion resistant by a surface conversion process, such as ferretic nitrocarburizafion.

Description

The finned tube device and the manufacture method thereof that are used for air-cooled type heat exchanger

CROSS-REFERENCE TO RELATED PATENT

The application requires the U.S. Provisional Patent Application 60/991 of submission on November 30th, 2007,322, the U.S. Provisional Patent Application of submitting on February 14th, 2,008 61/028, the U.S. Provisional Patent Application 61/108 that on October 25th, 689 and 2008 submitted to, 511 priority, its full content is incorporated this paper by reference into.

Technical field

The present invention relates generally to the air-cooled type heat exchanger field, relate in particular to the finned tube device and the manufacture method thereof that are used for air-cooled type heat exchanger.

Background technology

Air-cooled type heat exchanger is used for various commercial Application, particularly in lacking with the application of water as cooling medium.Air-cooled stram condenser is the special heat exchanger of a class that is used for condensed steam.Condenser is widely used in industry, chemistry, petrochemical industry and the energy industry.

Air-cooled stram condenser typically comprises parallel connected a plurality of finned tube device.This finned tube device typically comprises the annulus core pipe of elongation and the cross section of non-annular, and be connected one group of pipe on the outer surface of core pipe, be used for by increasing surface area from increasing transfer of heat from the fluid of this core pipe to ambient air.These fins are made by high conductivity material usually.At work, steam (or other fluid) flows through from tube interior, and meanwhile, the cooling air flows to tube exterior along fin.

Typically, be used for finned tube device that air cooled condenser uses in the prior art and be the pipe by adopting carbon steel, stainless steel to make, and pipe flattened form, cross section is exactly non-circular so longitudinally.Pipe scribbles aluminized coating outward, then pipe is arrived in the hard solder of aluminium fin.It is well known in the art and standardized that fin hard solder to core is run affairs.

Existing finned tube device that is used for air-cooled type heat exchanger and manufacture method patent below thereof are open: on November 13rd, (1) 2007 delivered authorizes people's such as Nadig No. 7,293,602, United States Patent (USP); The United States Patent (USP) of authorizing Fay 7,243,712 that on July 17th, (2) 2007 delivered; No. 7,165,606, the United States Patent (USP) of delivering on January 23rd, (3) 2007 of authorizing Take; No. 6,332,494, the United States Patent (USP) of authorizing people such as Bodas that (4) deliver December 25 calendar year 2001; No. 6,142,223, the United States Patent (USP) of authorizing people such as Bodas that on November 7th, (5) 2007 delivered; No. 6,000,461, the United States Patent (USP) of authorizing people such as Ross that on December 14th, (6) 1999 delivered, these patents are incorporated this paper into the form of quoting.

Though above-mentioned finned tube device and manufacture method thereof all are suitable for aspect a lot, but all these also all can have one or more shortcomings, comprise the complexity of manufacturing, be not best transfer of heat, the material that is suitable for costliness and expensive manufacturing process, these all cause very high final expense.

Summary of the invention

An object of the present invention is to provide the finned tube device that is used for air-cooled type heat exchanger, and manufacture method.

Another object of the present invention provides the finned tube device that is used for air-cooled type heat exchanger, and manufacture method, and this method does not need brazing.

Another purpose again of the present invention provides the finned tube device that is used for air-cooled type heat exchanger, and manufacture method, and this manufacture method is simple, quick and cost efficiency is high.

Another purpose again of the present invention provides the finned tube device that is used for air-cooled type heat exchanger, and manufacture method, and this method does not use packing material that fin is welded direct to the core pipe.

Another object of the present invention provides the durable finned tube device that is used for air-cooled type heat exchanger, and manufacture method.

Another purpose of the present invention provides the finned tube device that is used for air-cooled type heat exchanger, and manufacture method, and this method is utilized many parts core pipe.

Another aspect again of the present invention provides the finned tube device that is used for air-cooled type heat exchanger, and manufacture method, and this manufacture method is corrosion-resistant.

The present invention has satisfied above these or other purpose, and in one aspect, it can be a kind of finned tube device that is used for air-cooled type heat exchanger, comprising: the core pipe, and it has the inner passage that is used to transmit the fluid that will cool off, and described core pipe has non-circular cross section; And at least one bond pads is to the fin of the outer surface of described core pipe.Best is in certain embodiments, to utilize the welding technology that does not use packing material described at least one group of fin directly to be soldered to the outer surface of described core pipe.

Be preferably, described at least one group of fin is wavy plate, and it has crest that ends at ridge and the trough that ends at base plate.Be more preferably, the base plate of the trough of described wavy plate is the outer surface of continous way laser weld to described core pipe.Best is that the base plate of described trough comprises the part of continous way laser weld to the plane basically of the outer surface of described core pipe.

In yet another aspect, the present invention is a kind of finned tube device that is used for air-cooled type heat exchanger, comprise: the core pipe, it has the inner surface of forming the passage be used to transmit the fluid that will cool off, and outer surface, this outer surface have first substantially flat the surface and with the surface of opposed second substantially flat of described first substantially flat surfaces; Described core pipe constitutes from the single piece plate structure that bends to described core tube shape, has vertical contact-making surface like this, and described vertical contact-making surface continous way welding is to form described core pipe; Be connected to each one group of fin on the surface of described first and second substantially flat.

Again aspect another, the present invention is a kind of finned tube device that is used for air-cooled type heat exchanger, comprise: the core pipe, it has the inner surface of forming the passage be used to transmit the fluid that will cool off, and outer surface, this outer surface have first substantially flat the surface and with the surface of opposed second substantially flat of described first substantially flat surfaces; Described core pipe constitutes from the single piece plate structure of first transverse part of bending to described core pipe and second slab construction bending to second transverse part of described core pipe, the adjacent arrangement of described first and second transverse parts is to exist first and second vertical contact-making surface, and described first welds to form described core pipe with second vertical contact-making surface continous way; In described first or second the vertical contact-making surface at least one is to contact between the lateral edges by (1) described first and second transverse part, described lateral edges butt seam welding together, or the basal surface and forming between the top surface of side flange of described second transverse part that (2) form the side flange of described first transverse part contacts, and described side flange is welded together and forms; Be connected to each one group of fin on the surface of described first and second substantially flat.

Again aspect another, the present invention can be a kind of finned tube device that is used for air-cooled type heat exchanger, comprising: the core pipe, and it has the inner surface of forming the inner passage that is used to transmit the fluid that will cool off, and described core pipe has non-circular cross section; At least one bond pads is to the fin of the outer surface of described core pipe; Cover the baked phenolic coating or the zinc-base coating of described at least one group of fin and described core pipe.

In yet another aspect, the present invention is the method that a kind of manufacturing is used for the finned tube device of air-cooled type heat exchanger, comprise: the pipe of the core with inner surface a) is provided, and described inner surface is formed for transmitting the inner passage of the fluid that will cool off, and described core pipe has non-circular cross section; B) provide at least one group of fin; C) utilize the welding technology that does not use packing material described at least one group of fin to be soldered to the outer surface of described core pipe.

Again aspect another, the present invention is the method that a kind of manufacturing is used for the finned tube device of air-cooled type heat exchanger, comprise: smooth basically slab construction a) is provided, and it has first lateral edges, second lateral edges, first terminal edges, second terminal edges, first first type surface and second first type surface; Described first and second terminal edges define the longitudinal length of the slab construction of described substantially flat; B) provide first group of fin and second group of fin; C) utilize the welding technology do not use packing material described first group of fin to be soldered to the first of described first first type surface of the slab construction of described substantially flat; Described first group of fin and described first lateral edges keep at a certain distance away, so that described first first type surface has at described first group of fin and do not have first peripheral part of longitudinal extension between described first lateral edges of fin; D) utilize described welding technology described second group of fin to be soldered to the second portion of described first first type surface of the slab construction of described substantially flat; Described second group of fin and described second lateral edges keep at a certain distance away, so that described first first type surface has the elongation part of longitudinal extension between described first and second groups of fins that do not have a fin, and at described second group of fin with there be not second peripheral part of longitudinal extension between described second lateral edges of fin; E) described first and second peripheral part of the slab construction of described substantially flat is crooked so that extend from the plane that second first type surface of the slab construction of described substantially flat forms; F) along the slab construction of the crooked described substantially flat of described elongation part, like this, described first and second part of described first first type surface are opposed surfaces, and first and second peripheral part of described bending are in contact with one another and form vertical contact-making surface; G) continous way is welded described vertical contact-making surface so that form the core pipe, and wherein, described second first type surface forms the inner passage of described core pipe, and described first first type surface forms the outer surface of described core pipe.

Again aspect another, the present invention is the method that a kind of manufacturing is used for the finned tube device of air-cooled type heat exchanger, comprise: the pipe of the core with inner surface a) is provided, and described inner surface is formed for transmitting the inner passage of the fluid that will cool off, and described core pipe has non-circular cross section; B) provide at least one group of fin; C) at least one group of fin is connected to the outer surface of described core pipe; D) apply described at least one group of fin and described core pipe with baked phenolic coating or Zn-based plating layer or aluminium base coating.

In yet another aspect, the present invention is the method that a kind of manufacturing is used for the finned tube device of air-cooled type heat exchanger, comprise: smooth basically slab construction a) is provided, and it has first lateral edges, second lateral edges, first terminal edges, second terminal edges, first first type surface and second first type surface; Described first and second terminal edges define the longitudinal length of the slab construction of described substantially flat; B) provide first group of fin and second group of fin; C) described first group of fin is connected to first zone of first first type surface of the slab construction of described substantially flat; Described first group of fin and described first lateral edges keep at a certain distance away, so that the slab construction of described substantially flat has at described first group of fin and do not have first peripheral part of longitudinal extension between described first lateral edges of fin; D) described second group of fin is connected to the second portion of described first first type surface of the slab construction of described substantially flat; Described second group of fin and described second lateral edges keep at a certain distance away, so that the slab construction of described substantially flat has the second portion of longitudinal extension between described first and second groups of fins that do not have a fin, and at described second group of fin with there be not the 3rd part of longitudinal extension between described second lateral edges of fin; E) described first and the 3rd part of the slab construction of described substantially flat is crooked so that extend from the plane that second first type surface of the slab construction of described substantially flat forms; F) along the slab construction of the crooked described substantially flat of described second portion, like this, described first and second part of described first first type surface are opposed surfaces, and first and the 3rd part of described bending are in contact with one another and form vertical contact-making surface; G) continous way is welded described vertical contact-making surface so that form the core pipe, and wherein, described second first type surface forms the inner passage of described core pipe, and described first first type surface forms the outer surface of described core pipe.

In yet another aspect, the present invention is the method that a kind of manufacturing is used for the finned tube device of air-cooled type heat exchanger, comprise: the slab construction of first substantially flat a) is provided, and it has first lateral edges, second lateral edges, first first type surface and second first type surface; B) provide the slab construction of second substantially flat, it has first lateral edges, second lateral edges, first first type surface and second first type surface; C) first group of fin is connected to first first type surface of the slab construction of described first substantially flat; D) second group of fin is connected to first first type surface of the slab construction of described second substantially flat; E) slab construction of described first substantially flat is bent to first transverse part of core pipe; F) slab construction of described second substantially flat is bent to second transverse part of core pipe; G) with described first and second adjacent arrangement of transverse part so that form first and second vertical contact-making surface; H) described first and second vertical contact-making surface of continous way welding has the described core pipe of inner passage with formation, and described inner passage is made up of second first type surface of described first and second transverse part.

Again aspect another, the present invention is the method that a kind of manufacturing is used for the finned tube device of air-cooled type heat exchanger, comprising: the slab construction that a plurality of first substantially flats a) are provided; B) at least one group of fin is connected in the slab construction of described a plurality of substantially flats one; C) described a plurality of slab constructions are bent to the transverse part of core pipe; D) with the adjacent arrangement of described transverse part so that form a plurality of vertical contact-making surfaces; E) continous way is welded described a plurality of vertical contact-making surface, has the core pipe and the outer surface that comprises described at least one group of fin of inner passage with formation.

In yet another aspect, the present invention is a kind of finned tube device that is used for air-cooled type heat exchanger, comprising: the core pipe, and it has the inner surface of the inner passage that is formed for transmitting the fluid that will cool off; At least one group of fin, it is connected to the outer surface of described core pipe; Wherein, the outer surface of described core pipe and described at least one group of fin will carry out the plain carbo-nitriding processing of iron.

Again aspect another, the present invention is the method that a kind of manufacturing is used for the finned tube device of air-cooled type heat exchanger, comprise: the pipe of the core with inner surface a) is provided, described inner surface is formed for transmitting the inner passage of the fluid that will cool off, and has at least one group of fin to be connected to the outer surface of described core pipe; B) outer surface of described at least one group of fin and described core pipe is carried out surface conversion treatment, increase corrosion resistance.In one embodiment, the preferably plain carbo-nitriding processing of iron of described surface conversion treatment.

Description of drawings

Fig. 1 is the perspective view that is used for the finned tube device of air-cooled type heat exchanger according to an embodiment of the invention;

Fig. 2 is the exploded view of the finned tube device of Fig. 1;

Fig. 3 A is the cross-sectional view of the finned tube device of Fig. 1;

Fig. 3 B is the longitudinal cross-section view of the finned tube device of Fig. 1 along the vertical plane of the X-X axle that passes Fig. 3 A;

Fig. 3 C is the top view of a part of the finned tube device of Fig. 1;

Fig. 4 A be according to the merging of first optional embodiment of the present invention the longitudinal cross-section view of a part of finned tube device of fins set;

Fig. 4 B be according to the merging of second optional embodiment of the present invention the longitudinal cross-section view of a part of finned tube device of fins set;

Fig. 5 A be according to the merging of first optional embodiment of the present invention the cross-sectional view of finned tube device of many parts core pipe;

Fig. 5 B be according to the merging of second optional embodiment of the present invention the cross-sectional view of finned tube device of many parts core pipe;

Fig. 5 C be according to the merging of the 3rd optional embodiment of the present invention the cross-sectional view of finned tube device of many parts core pipe;

Fig. 6 A be according to the merging of the 4th optional embodiment of the present invention the cross-sectional view of finned tube device of single part core pipe;

Fig. 6 B be according to the merging of the 5th optional embodiment of the present invention the cross-sectional view of finned tube device of single part core pipe;

Fig. 6 C be according to the merging of the 6th optional embodiment of the present invention the cross-sectional view of finned tube device of single part core pipe;

Fig. 6 D be according to the merging of the 5th optional embodiment of the present invention the cross-sectional view of finned tube device of single part core pipe;

Fig. 7 is the cross-sectional view that can be used for the multilayer core pipe of finned tube device according to an embodiment of the invention;

Fig. 8 is the sectional view that can be used for the part of the multilayer fins set in the finned tube device according to an embodiment of the invention;

Fig. 9 A-9E shows according to one embodiment of present invention, utilizes the method for single chip architecture core pipe manufacturer finned tube device;

Figure 10 A-10E shows according to one embodiment of present invention, utilizes the method for many parts core pipe manufacturer finned tube device;

Figure 11 is the schematic diagram in power station according to an embodiment of the invention.

The specific embodiment

With reference to Fig. 1, show the cross section of finned tube device 100 according to an embodiment of the invention.Finned tube device 100 is particularly useful for being integrated in the air-cooled condenser system in the power station in the dry climate.But the present invention is not limited to this, and finned tube device 100 can be used for other hot transfer equipment and be used for any industry, commerce or residential environment.

Generally speaking, finned tube device 100 comprises core pipe 10 and two groups of cooling fins 20A-B of elongation.Core pipe 10 has the inner surface 11 and the outer surface 12 that has been connected two groups of fin 20A-B that forms vertical inner passage 40.Inner passage 40 is the openings that extend to the far-end 14 of finned tube device 100 from the opening of the near-end 13 of finned tube device 100.Inner passage 40 is the airtight sealing fluid pipelines that are used to transmit fluid (for example steam or other steam), by this pipeline to help when keeping fluid and surrounding air isolation, removing heat from fluid.

Core pipe 10 (and the inner passage 40 that forms) has non-circular cross section.In the embodiment shown, core pipe 10 generally comprises the

part

15,16 on two relative basic planes, and they are connected by lateral parts (being made up of with 122-123 lateral edges 114-115 in this embodiment).Certainly, the present invention is not limited to this, and the core pipe can adopt a lot of different non-circular transverse cross-sectional shape.

Core pipe 10 extends longitudinal length L _LIn certain embodiments, longitudinal length L _LCan be between 20 to 60 feet.The width of core pipe 10 (not marking in the drawings) is preferably in the scope between 4 to 18 inches.In certain embodiments, the thickness of core pipe 10 is 0.035 to 0.12 inch.Certainly, the present invention is not limited to this, longitudinal length L _L, width and thickness can be the measured value of any needs.In addition, extend though core pipe 10 is exemplified as along linear along slope coordinate, in other embodiments, core pipe 10 can comprise curved surface, bending and/or angled.

Core pipe 10 preferably is made of the material of metal or other effective heat conduction.Give an example but be not restrictive, core pipe 10 can be made of copper, aluminium, carbon, stainless steel or their combination.Certainly, also can use other material.

Two groups of fin 20A-B preferably are connected on the outer surface 12 of the

part

15,16 on basic plane on the relative both sides of finned tube device 100.In some embodiments of the invention, fins set 20A-B is directly connected on the core pipe by the welding technology (for example, Laser Welding technology) that does not use packing material.With reference to Fig. 3 A-3B the details that fins set 20A-B is connected to core pipe 10 is described in further detail below.Fins set 20A-B is along the entire longitudinal length L of finned tube device 100 _LExtend.But if desired, fins set 20A-B can only extend longitudinal length L in certain embodiments _LA part.In addition, an any amount fins set can be used, and diverse location and/or direction on the finned tube device 100 can be positioned at.

Referring now to Fig. 2, show the finned tube device 100 of Fig. 1 with the form of exploded view.Can see that core pipe 10 is made of top board structure 10A and base arrangement 10B, each plate is formed a transverse part (transverse section) of core pipe 10.Term " plate " in this article as and be not intended to the restriction of receiving concrete thickness, hardness and shape, and that be intended to comprise rigidity or soft thin and thickness material sheet plate.Give an example, plank can be grouped into by the metal part of coiling, for example rolled sheet metal.In an example, thin-

slab structure

10A, 10B can be made up of the feed metal volume of thickness in 1.0 to 2.0 millimeters scopes.But, unless spell out in the claims, the present invention is not limited in any specific size.

Top board structure 10A comprises first side edge 110, second side edge 111, proximal edge 112 and remote edge 113.Top board structure 10A comprises planar section 15 and extends first and second lateral edges 114,115 downwards and to the side from this planar section 15.Lateral edges 114,115 has basal surface 116,117 respectively, and ends at lateral edges 110,111.

Similarly, base arrangement 10B comprises first side edge 118, second side edge 119, proximal edge 120 and remote edge 121.Base arrangement 10B comprises planar section 16 and upwards and to the side extends first and second lateral edges 122,123 from this planar section 16.Lateral edges 122,123 has basal surface 124,125 respectively, and ends at lateral edges 118,119.

First group of fin 20A is connected on the top surface on plane basically of planar section 15 of top board structure 10A, and second group of fin is connected on the basal surface on plane basically of planar section 16 of base arrangement 10B.

Every group of

fin

20A, 20B preferably have the wavy material (for example, aluminium, carbon steel, stainless steel, copper or their combination) of high thermal conductivity

coefficient.Wavy plate

20A, 20B can be any length.Can adopt single or multiple wavy plates to cover the entire longitudinal length L of the single face of finned tube transposition 100 _LThe size and the CONSTRUCTED SPECIFICATION of wavy plate are described in further detail with reference to Fig. 3 B-3C below.

Simultaneously with reference to Fig. 3 A-3B, the general structural component cooperation of finned tube device 100 will be described in further detail now.At first from the formation of core pipe 10, with top board and base arrangement 10A-10B according to shown in adjacent mode arrange.More specifically, top board structure and

base arrangement

10A, 10B are arranged with linear mode, so that the basal surface 116-117 of the lateral edges 114-115 of top board structure 10A can realize that the surface contact with the top surface 124-125 of the lateral edges 122-123 of base arrangement 10B, so forms two vertical contact-making surface 126-127.Respectively, first vertical contact-making surface 126 is to form by contacting between the bottom surface of first side edge 114,122 and the end face 116,124, and second vertical contact-making surface 127 is to form by contacting between the bottom surface of second side edge 115,123 and the end face 117,125.

First side edge 114,122 be combined to form length L from the outer surface 12 of first side of core pipe 10 along finned tube device 100 _LThe first outstanding longitudinal ridge 30.Similarly, second side edge 115,123 is combined to form length L from the outer surface 12 of second side of core pipe 10 along finned tube device 100 _LThe second outstanding longitudinal ridge 31.First and second longitudinal ridges 30,31 (and contact-making surface 126,127) oppose mutually and depart from center along slope coordinate X-X (only being visible as an X in Fig. 3 A) 180 degree of finned tube device 100.But the present invention is not limited to this, and this longitudinal ridge can be positioned at other transversal position.In addition,, can there be any amount of longitudinal ridge, comprises 0 as in the following discussion can be conspicuous.Accurate quantity is by the geometric configuration of the lateral edge portions of thin-slab structure tendency and the quantity that is used to make up the complete required cross section thin-slab structure of core pipe 10 is determined.

In the embodiment shown in Fig. 3 A-3B, finned tube device 100 has two vertical contact-making surfaces 126,127, because each top board and

base arrangement

10A, 10B form half transverse part of core pipe 10.Therefore, thus and linear orientation adjacent with base arrangement 10A-10B arranged the complete cross section that can form core pipe 10 and formed inner passage 40 with top board.But the present invention is not limited to this, will it is evident that from following discussion, can have any amount of vertical contact-making surface, comprises 1.Accurate quantity will be determined by the quantity of the cross section thin-slab structure of the complete requirement that is used to make up core pipe 10.In addition, it is linear contact-making surface (as illustrational) without any need for vertical contact-making surface.In other embodiments, vertically contact-making surface can adopt class trapezoidal shape or spiral and/or helical shaped.

In order to make inner passage 40 are pipelines of fluid-tight so that transport the fluid that will cool off, first edge 114,122 of top board and

base arrangement

10A, 10B is welded together in contact, therefore in a side top board and

base arrangement

10A, 10B are linked together, and seal first vertical contact-making surface 126.Similarly, second edge 115,123 of top board and

base arrangement

10A, 10B is welded together in contact, therefore top board and

base arrangement

10A, 10B are linked together, and seal second vertical contact-making surface 127 at opposite side.The connection welding at first edge 114,122 and/or second edge 115,123 can or not use the solder technology of packing material to finish with any suitable use, comprises being not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, submerged arc welding, PLASMA ARC WELDING, gas welding, electroslag welding, electron beam welding, laser weld, thermite weld, contact point welding and/or their combination.Be more preferably, use the electric-resistance seam-welding treatment technology.

Simultaneously with reference to Fig. 3 B-3C, will go through fins set 20A, 20B now.As discussed above, every group of

fin

20A, 20B be comprise a plurality of fluctuatings with crest 21A, the 21B and trough 22A, the 22B (be worth in the drawings with Digital ID and gone out some) that alternate to avoid

confusion.Crest

21A, 21B end at

top ridge

23A, 23B respectively, and

trough

22A, 22B end at base plate 24A, 24B.To describe the connection of first group of fin 20A now, it will be appreciated that this is applicable to the connection from second group of fin 20B to base arrangement 10B too to top board structure 10A.

First group of fin 20A is connected by welding to the planar upper surface/outer surface basically of the planar section 15 of top board structure 10A.More particularly, utilize the welding technology do not adopt packing material that all base plate 24A of first group of fin 20A directly are soldered to top board structure 10A, so that guarantee the enough thermal conductivity between first group of fin 20A and the core pipe 10.A kind of suitable welding technology that laser weld comes to this.

In one embodiment, all base plate 24A of first group of fin 20A with stitch (stitchedmanner) along whole fin width W _FFusion welding is to top board structure 10A.In another embodiment, all base plate 24A of first group of fin 20A are along whole fin width W _FContinuous adjacent ground fusion welding is to top board structure 10A.Certainly, if desired, the combination of melting welding and stitch welding technology can be used for the different base plate 24A of the fin 20A of identical finned tube device 100 continuously.In Fig. 3 C, stitch melting welding is illustrated as stitch line LW _S, and melting welding is illustrated as continuous phase wiring LW continuously _CBe more preferably, for structural intergrity and heat conduction purpose, the direct fusion welding of all base plates of fins set 20A is to the top board structure 10A of core pipe 10.Certainly, this is not all to require in all situations.

Using stitch melting welding fins set 20A, 20B to be connected among the embodiment of core pipe 10, be preferably in to weld to use based on the coating of metal afterwards whole finned tube device 100 is wrapped, to reach the close contact between whole base plate 24A, the 24B, to help the thermal conductivity between core pipe 10 and fin 20A, the 20B.In so concrete application, finned tube device 100 (that is, stitch melting welding is to the fin 20A of the core pipe 10 of assembling, the combination of 20B) is immersed in the liquid solution based on zinc or aluminium.As a result, enter and fill any space that exists between base plate 24A, the 24B of

fin

20A, 20B and the core pipe 10 based on the liquid of metal.Then, allow finned tube device 100 coolings.Certainly, can use other coating based on metal.

At last, do not consider to be to use still continous way interconnection technique of stitch welding, can be coated with the finned tube device 100 that is covered with assembling, can not degenerate significantly so that keep out operation and environmental aspect with corrosion-resistant material.Suitable coating including but not limited to, based on the coating or the baked phenolic coating of metal.The suitable coating based on metal comprises when being not limited in Zn-based plating layer and aluminium base coating.For the minimum resistance that heat is shifted, this coating is less than 100 microns in certain embodiments.Discuss as following, in other embodiments, can make it corrosion-resistant by making finned tube device 100 process surface conversion treatment (for example, the plain carbo-nitriding of iron).

In one embodiment, the thickness of fins set is between 0.005 to 0.015 inch, and height is between 0.25 to 1.0 inch.But the present invention is not limited to any concrete size.It will be appreciated that fins set 20A, 20B can adopt a lot of different shape, size, thickness, structural arrangement and directions on core pipe 10.Unless spell out in the claims, above-mentioned any one all be not limited only to the present invention.

Other fin embodiment

In Fig. 4 A and 4B, show two other embodiment that is used for fins set of the present invention.It will be appreciated that open additional embodiments only is what may be in order to explain in addition and to study best pattern of the present invention.Those skilled in the art understands the fins set structure that has a lot of equivalences, and following public principle can be applied to a lot of different embodiment.

Referring now to Fig. 4 A, show fins set 20A ', the 20B ' of second embodiment that can be used for finned tube device 100 (or its any embodiment).Fins set 20A ', 20B ' can substitute and/or replenish one or more groups fin 20A, the 20B in the finned tube device 100 of the present invention (or its any embodiment).Fins set 20A ', 20B ' aspect a lot of basic structures, function and above connection side's Noodles of core pipe 10 is similar to reference to fins set 20A, the 20B of Fig. 1-3C discussion.Therefore, subsidiary have single identical reference symbol of casting aside suffix " ' " will be used to identify the similar assembly of fins set 20A ', 20B '.For fear of redundancy, only go through those aspects that fins set 20A ', 20B ' are different from fins set 20A, 20B below.In addition, now will be individually about the correlative detail of first group of fin 20A ' description fins set 20A ', 20B ', it should be understood that identical details also is applicable to second group of fin 20B '.

First group of fin 20A ' is the wavy material of quadrature, for example metal or other Heat Conduction Material.First group of crest 21A ' and trough 22A ' (, only having gone out wherein some with figure notation in the drawings) that fin 20A ' comprises the fluctuating of a plurality of quadratures and replaces for fear of confusion.Crest 21A ' correspondingly ends at top surface 23A ', and trough 22A ' ends at backplate surface 24A '.

In order to produce finned tube device 100 in enormous quantities, the wavy shape of the quadrature of fins set 20A ' is better with respect to fins set 20A because of plane bottom plate 24A ' in some respects.Make up fins set 20A ' and make its backplate surface 24A ' have the part on plane basically, increased direct melting welding and connected the surface area that directly contacts with the core tube outer surface in (as discussed above) process of processing.As a result, can realize first group of 20A ' easier and more reliably, and need not that (with identical shown in Fig. 3 C) requires high tolerance and accuracy when mobile laser spray gun passes fin width WF to the suitable laser weld of core pipe 10.In addition, having the surface of plane bottom plate basically 24A ' has increased close surface contact between core pipe and the fins set 20A ', so that increase the thermal conductivity between the two, this is that cooling fluid is needed.

It should be noted that in some embodiments of the invention, it is that pure quadrature shape just can arrive that the advantage of plane bottom plate surface 24A ' does not need to make fins set 20A '.In these embodiments, body of wall and crest can be angled and/or crooked.

Referring now to Fig. 4 B, show the fins set 20A ", 20B " of the 3rd embodiment that can be used for finned tube device 100 (or its any embodiment).Fins set 20A ", 20B " can substitute and/or replenish one or more groups fin 20A, 20B or fin 20A ', the 20B ' in the finned tube device 100 of the present invention (or its any embodiment).Fins set 20A ", 20B " aspect a lot of basic structures, function and above connection side's Noodles of core pipe 10 is similar to reference to fins set 20A, 20B and fins set 20A ', the 20B ' of Fig. 1-4A discussion.Therefore, subsidiary two suffix " the identical reference symbol of " " will be used to identify fins set 20A ", 20B of casting aside are arranged " similar assembly.For fear of redundancy, only go through those aspects that fins set 20A ", 20B " is different from fins set 20A, 20B and fins set 20A ', 20B ' below.In addition, now will be individually about first group of fin 20A " fins set 20A is described ", 20B " correlative detail, it should be understood that identical details also is applicable to second group of fin 20B ".

First group of fin 20A " comprises that laser weld is to a plurality of independent L shaped fin 28A of core pipe 10 independently "." be the quadrature shape, they can be crooked or bend to other shape though single fin 28A if desired.Briefly, it will be appreciated that the fins set among the present invention does not need to form with single piece of material, but can form and be soldered to the core pipe individually.

Other many parts core pipe embodiment

In Fig. 5 A-5C, show three additional embodiments of many parts core pipe that is used for finned tube device 100 of the present invention.It should be understood that open additional embodiments only is may be what in order to explain in addition and to study best pattern of the present invention.Those skilled in the art understands many parts core pipe that has a lot of equivalences and arranges, and following public principle can be applied to a lot of different embodiment.In addition, the present invention is not limited in two parts core pipe device.It should be understood that notion disclosed herein can be used for having many parts core pipe of any amount of transverse part, and if desired, any one in the plate structure discussed herein can make up with many parts.

Referring now to Fig. 5 A, show second embodiment core pipe 10 that can be used for finned tube device 100 (or its any embodiment) '.Disclosed core pipe 10 is whole or a part of among this core pipe 10 ' can substitute and/or the additional Fig. 1-4B.Core pipe 10 ' aspect a lot of basic structures, function and be similar to core pipe 10 about Fig. 1-4B discussion to connection side's Noodles of fins set 20A, 20B.Therefore, subsidiary have single identical reference symbol of casting aside suffix " ' " will be used to identify core pipe 10 ' similar assembly.For fear of redundancy, only go through core pipe 10 ' be different from those aspects of core pipe 10 below.

Core pipe 10 ' and core pipe 10 between main difference be top board and base arrangement 10A ', 10B ' lateral edges 114 '-115 ', 122 '-123 ' shape.In this embodiment, the lateral edges 114 of top board structure 10A ' ', 115 ' from the planar section 15 of top board structure 10A ' ' downwards with extend inward.On the contrary, the lateral edges 122 of base arrangement 10B ' ', 123 ' from the planar section 16 of base arrangement 10B ' ' upwards with extend inward.

The result, when top board during and linear array adjacent with base arrangement 10A ', 10B ', the lateral edges 114 of top board structure 10A ' ' basal surface 116 ', 117 ' (now by the outer surface 12 of core pipe ' form), with the lateral edges 122 of base arrangement 10B ' ', 123 ' top surface 124 ', 125 ' (now also by outer surface 12 ' form) surfaces are connected, so form two vertical contact-making surfaces 126 ', 127 '.

First side edge 114 ', 122 ' be combined to form first longitudinal ridge 30 ', from core pipe 10 ' first side along finned tube device 100 ' length L _LBe projected into inner passage 40 ' in.Similarly, second side edge 115 ', 123 ' be combined to form second longitudinal ridge 31 ', also from core pipe 10 ' first side along finned tube device 100 ' length L _LBe projected into inner passage 40 ' in.

As above, in order to make inner passage 40 ' be the fluid-tight pipeline that is used to transmit the fluid that will cool off, first edge 114 of top board and base arrangement 10A ', 10B ' ', 122 ' along first and second vertical contact-making surfaces 126 ', 127 ' be connected and weld together, therefore top board and base arrangement 10A ', 10B ' are linked together.First edge 114 ', 122 ' and/or second edge 115 ', 123 ' the connection welding can or not use the solder technology of packing material to finish with any suitable use, comprise be not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, submerged arc welding, PLASMA ARC WELDING, gas welding, electroslag welding, electron beam welding, laser weld, thermite weld, contact point welds and/or their combination.Be more preferably, use the electric-resistance seam-welding treatment technology.

Referring now to Fig. 5 B, show second embodiment core pipe 10 that can be used for finned tube device 100 (or its any embodiment) ".This core pipe 10 " can substitute and/or additional Fig. 1-5A in disclosed core pipe 10 whole or a part of.Core pipe 10 " aspect a lot of basic structures, function and be similar to core pipe 10 about Fig. 1-4B discussion to connection side's Noodles of fins set 20A, 20B.Therefore, the subsidiary similar assemblies that two left-falling stroke suffix " the identical reference symbol of " " will be used to identify core pipe 10 " are arranged.For fear of redundancy, " those aspects that are different from core pipe 10 that only go through core pipe 10 below.

Core pipe 10 " and the main difference between the core pipe 10 is top board and base arrangement 10A ", 10B " lateral edges 114 "-115 ", 122 "-123 " shape.In this embodiment, the planar section 15 of top board structure 10A " lateral edges 114 ", 115 " from top board structure 10A " " only extends downwards.On the contrary, the planar section 16 of base arrangement 10B " lateral edges 122 ", 123 " from base arrangement 10B " " only extends upward.More specifically, lateral edges 114 " 115 ", 122 " 123 " generally bend to 90 face portion of writing music.Certainly, in other embodiments, lateral edges 114 " 115 ", 122 " 123 " can be only extend on opposite planar part 15 ", 16 " certain angle.

As top board and base arrangement 10A ", 10B " during adjacent and linear array, the lateral edges 118 of top board structure 10A " lateral edges 110 ", 111 " with base arrangement 10B " ", 119 " is connected and is adjacent, therefore forms two vertical contact-making surfaces 126 ", 127 ".

As above, " be the fluid-tight pipeline that is used to transmit the fluid that will cool off; top board and base arrangement 10A ", 10B " are connected along first and second vertical contact-making surfaces 126 ", 127 " and weld together, therefore top board and base arrangement 10A ", 10B " linked together in order to make inner passage 40.Preferably adopt use in this embodiment or do not use the butt seam welding technology of packing material to finish.Suitable solder technology is including, but not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, PLASMA ARC WELDING, gas welding, electroslag welding, electron beam welding, laser weld, high-frequency welding and/or their combination.

Referring now to Fig. 5 C, show the 3rd the embodiment core pipe 10 that can be used for finned tube device 100 (or its any embodiment) " '.This core pipe 10 " ' can substitute and/or additional Fig. 1-5B in disclosed core pipe 10 whole or a part of.Core pipe 10 " ' aspect a lot of basic structures, function and be similar to core pipe 10 about Fig. 1-4B discussion to connection side's Noodles of fins set 20A, 20B.Therefore, subsidiary have three cast aside suffix " the identical reference symbol of " ' " will be used to identify core pipe 10 " ' similar assembly.For fear of redundancy, only go through core pipe 10 below " ' be different from those aspects of core pipe 10.

Core pipe 10 " ' and core pipe 10 between main difference be top board and base arrangement 10A " ', 10B " ' lateral edges 114 " ' _ 115 " ', 122 " '-123 " ' shape.In this embodiment, the planar section 15 of top board structure 10A " ' lateral edges 114 " ', 115 " ' from top board structure 10A " ' " ' only extend downwards.On the contrary, the planar section 16 of base arrangement 10B " ' lateral edges 122 " ', 123 " ' from base arrangement 10B " ' " ' only extend upward.More specifically, lateral edges 114 " '-115 " ', 122 " '-123 " ' generally bend to 90 face portion of writing music.Certainly, in other embodiments, lateral edges 114 " '-115 " ', 122 " '-123 " ' can be only extend on opposite planar part 15 " ', 16 " ' certain angle.

Top board structure 10B " ' than top board structure 10A " ' wide.When top board and base arrangement 10A " ', 10B " ' adjacent and linear array, in top board structure 10A " ' a part be enclosed within the base arrangement 10 " ' B.The result, top board structure 10A " ' lateral edges 114 " ', 115 " ' basal surface 116 " ', 117 " ' (forming by outer surface here) and base arrangement 10B " ' lateral edges 122, " ' 123 " ' top surface 124, " ' 125 " ' surface is connected, so form two vertical contact-making surfaces 126 " ', 127 " '.

As above, in order to make inner passage 40 " ' be the fluid-tight pipeline that is used to transmit the fluid that will cool off; with first and second vertical contact-making surfaces 126 " ', 127 " ' connect welded closure together, therefore with top board and base arrangement 10A " ', 10B " ' link together.Can adopt the butt seam welding technology of using or do not use packing material to finish this connection welding.Suitable solder technology is including, but not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, PLASMA ARC WELDING, gas welding, electroslag welding, electron beam welding, laser weld, induction welding, high-frequency welding and/or their combination.

Monolithic core pipe constructed embodiment

In Fig. 6 A-6D, show four core pipe embodiment that are used for finned tube device 100 of the present invention, the cross section of these core pipes is made up of monolithic core pipe.It should be understood that disclosing these monolithic core pipes embodiment only is what may be in order to explain in addition and to study best pattern of the present invention.Those skilled in the art understands the monolithic core pipe that has a lot of equivalences and arranges, and following public principle can be applied to a lot of different embodiment.

At first, show the embodiment of the finned tube device 1100 of core pipe 1010 with monolithic formation with reference to Fig. 6 A.Core pipe 1010 can substitute and/or additional Fig. 1-5C in disclosed core pipe whole or a part of.Finned tube device 1100 aspect a lot of basic structures, function and assembly cooperation part Noodles be similar to the finned tube device of discussing about Fig. 1-4B 100.Therefore, identical reference symbol adds that 1,000 (" 1000 ") will be used to identify the similar assembly of finned tube device 1100.For fear of redundancy, only go through those aspects that finned tube device 1100 is different from finned tube device 100 below.

Main difference between finned tube device 1100 and the finned tube device 100 is that core pipe 1010 is constituting by single chip architecture 1010 rather than manifold transverse part.In this embodiment, single chip architecture 1010A constitutes the whole cross section of core pipe 1010.As will be described in further detail below, single chip architecture 1010A begins to make as slab construction basically and makes its bending, rolls, otherwise forms the transverse shapes shown in Fig. 6 A.

Plate structure 1010A comprises outer surface 1012, inner surface 1011, first side edge 1110 and second side edge 1111.First side flange 1114 is composing plate structure 1010A near first side edge 1110, and near second side flange 1115 composing plate structure 1010A second side edge 1111.Plate structure 1010A is crooked into about 180 faces of writing music between top plan part 1015 and base plane part 1016, basal surface 1116 up to first side flange 1114 is connected with top surface 1117 surfaces of second side flange 1115, therefore forms vertically contact-making surface 1126 of first (and being unique).As a result, the side 1070 of core pipe 1010 is whole and does not have vertical contact-making surface, therefore eliminated the needs of welding.Unique vertical contact-making surface 1126 is positioned at the opposed side 1071 of core pipe 1010.

First side flange 1114 and second side flange 1115 are formed the single longitudinal ridge 1030 that stretches out and give prominence to from the outer surface 1012 of core pipe 1010.In other embodiment of this class, are the fluid-tight pipelines that are used to transmit the fluid that will cool off in order to make inner passage 1040, it is airtight that vertical contact-making surface 1126 is connected welding, therefore first side flange 1114 and second side flange 1115 linked together.This connection welding can or not use the solder technology of packing material to finish with any suitable use.Suitable solder technology is including, but not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, PLASMA ARC WELDING, gas welding, electron beam welding, laser weld, induction welding, high-frequency welding and/or their combination.Preferably use the electric-resistance seam-welding treatment technology.

Referring now to Fig. 6 B, show second embodiment finned tube device 2100 of core pipe 2010 with monolithic formation.Core pipe 2010 can substitute and/or additional Fig. 1-6A in disclosed core pipe whole or a part of.Finned tube device 2100 aspect a lot of basic structures, function and assembly cooperation part Noodles be similar to the finned tube device of discussing about Fig. 1-4B 100.Therefore, identical reference symbol adds that 2,000 (" 2000 ") will be used to identify the similar assembly of finned tube device 2100.For fear of redundancy, only go through those aspects that finned tube device 2100 is different from finned tube device 100 below.

Main difference between finned tube device 2100 and the finned tube device 100 is that core pipe 2010 is constituting by single chip architecture 2010 rather than manifold transverse part.In this embodiment, single chip architecture 2010A constitutes the whole cross section of core pipe 2010.As will be described in further detail below, single chip architecture 2010A begins to make as slab construction basically and makes its bending, rolls, otherwise form shown in Fig. 6 B to shape.

Plate structure 2010A comprises outer surface 2012, inner surface 2011, first side edge 2110 and second side edge 2111.First side flange 2114 is composing plate structure 2010A near first side edge 2110, and near second side flange 2115 composing plate structure 2010A second side edge 2111.Plate structure 2010A is crooked into about 180 faces of writing music between top plan part 2015 and base plane part 2016, basal surface 2116 up to first side flange 2114 is connected with top surface 2117 surfaces of second side flange 2115, therefore forms vertically contact-making surface 2126 of first (and being unique).As a result, the side 2070 of core pipe 2010 is whole and does not have vertical contact-making surface, therefore eliminated the needs of welding.Unique vertical contact-making surface 2126 is positioned at the opposed side 2071 of core pipe 2010.

First side flange 2114 and second side flange 2115 are formed the single longitudinal ridge 2030 that extends in the inner passage 2040 of core pipe 2010.In other embodiment of this class, are the fluid-tight pipelines that are used to transmit the fluid that will cool off in order to make inner passage 2040, it is airtight that vertical contact-making surface 2126 is connected welding, therefore first side flange 2114 and second side flange 2115 linked together.This connection welding can or not use the solder technology of packing material to finish with any suitable use.Suitable solder technology is including, but not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, PLASMA ARC WELDING, gas welding, electron beam welding, laser weld, induction welding, high-frequency welding and/or their combination.Preferably use the electric-resistance seam-welding treatment technology.

Referring now to Fig. 6 C, show the 3rd embodiment finned tube device 3100 of core pipe 3010 with monolithic formation.Core pipe 3010 can substitute and/or additional Fig. 1-6B in disclosed core pipe whole or a part of.Finned tube device 3100 aspect a lot of basic structures, function and assembly cooperation part Noodles be similar to the finned tube device of discussing about Fig. 1-4B 100.Therefore, identical reference symbol adds that 3,000 (" 3000 ") will be used to identify the similar assembly of finned tube device 3100.For fear of redundancy, only go through those aspects that finned tube device 3100 is different from finned tube device 100 below.

Main difference between finned tube device 3100 and the finned tube device 100 is that core pipe 3010 is constituting by single chip architecture 3010 rather than manifold transverse part.In this embodiment, single chip architecture 3010A constitutes the whole cross section of core pipe 3010.As will be described in further detail below, single chip architecture 3010A begins to make as slab construction basically and makes its bending, rolls, otherwise forms the transverse shapes shown in Fig. 6 C.

Plate structure 3010A comprises outer surface 3012, inner surface 3011, first side edge 3110 and second side edge 3111.First side flange 3114 is composing plate structure 3010A near first side edge 3110, and near second side flange 3115 composing plate structure 3010A second side edge 3111.It is crooked that first and

second side flanges

3114,3115 form 90 degree.Plate structure 3010A is crooked into about 180 faces of writing music between top plan part 3015 and base plane part 3016, is connected with second side edge 3111 up to first side edge 3110, so forms the vertical contact-making surface 3126 of first (and being unique).As a result, the side 3070 of core pipe 2010 is whole and does not have vertical contact-making surface, therefore eliminated the needs of welding.Unique vertical contact-making surface 3126 is positioned at the opposed side 3071 of core pipe 3010.

In other embodiment of this class, are the fluid-tight pipelines that are used to transmit the fluid that will cool off in order to make inner passage 3040, it is airtight that vertical contact-making surface 3126 is connected welding, therefore first side edge 3110 and second side edge 3111 linked together.In this embodiment, preferably adopt the butt weld technology of using or not using packing material.Suitable solder technology is including, but not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, PLASMA ARC WELDING, gas welding, electron beam welding, laser weld, induction welding, high-frequency welding and/or their combination.

Referring now to Fig. 6 D, show the 4th embodiment finned tube device 4100 of core pipe 4010 with monolithic formation.Core pipe 4010 can substitute and/or additional Fig. 1-6A in disclosed core pipe whole or a part of.Finned tube device 4100 aspect a lot of basic structures, function and assembly cooperation part Noodles be similar to the finned tube device of discussing about Fig. 1-4B 100.Therefore, identical reference symbol adds that 4,000 (" 4000 ") will be used to identify the similar assembly of finned tube device 4100.For fear of redundancy, only go through those aspects that finned tube device 4100 is different from finned tube device 100 below.

Main difference between finned tube device 4100 and the finned tube device 100 is that core pipe 4010 is constituting by single chip architecture 4010 rather than manifold transverse part.In this embodiment, single chip architecture 4010A constitutes the whole cross section of core pipe 4010.As will be described in further detail below, single chip architecture 4010A begins to make as slab construction basically and makes its bending, rolls, otherwise forms the transverse shapes shown in Fig. 6 D.

Plate structure 4010A comprises outer surface 4012, inner surface 4011, first side edge 4110 and second side edge 4111.First side flange 4114 is composing plate structure 4010A near first side edge 4110, and near second side flange 4115 composing plate structure 4010A second side edge 4111.It is crooked that first and second side flanges 4114,4115 form 90 degree.Plate structure 4010A is crooked into about 180 faces of writing music between top plan part 4015 and base plane part 4016, basal surface 4116 (being made up of outer surface 4012 among this embodiment) up to first side flange 4114 is connected with top surface 4117 (being made up of inner surface 4011 among this embodiment) surface of second side flange 4115, therefore forms vertically contact-making surface 4126 of first (and being unique).Base plane part 4016 is wideer than top plan part 4015, thereby creates the skew in the BENDING PROCESS.

A side 4070 of core pipe 4010 is whole and does not have vertical contact-making surface, therefore eliminated the needs of welding.Unique vertical contact-making surface 4126 is positioned at the opposed side 4071 of core pipe 4010.In other embodiment of this class, are the fluid-tight pipelines that are used to transmit the fluid that will cool off in order to make inner passage 4040, it is airtight that vertical contact-making surface 4126 is connected welding, therefore first side flange 4114 and second side flange 4115 linked together.This connection welding can or not use the solder technology of packing material to finish with any suitable use.Suitable solder technology is including, but not limited to electric-resistance seam-welding, artificial metal arc welding, Metallic Inert Gas welding, Wolfram Inert Gas welding, PLASMA ARC WELDING, gas welding, electron beam welding, laser weld, induction welding, high-frequency welding and/or their combination.Preferably use the electric-resistance seam-welding treatment technology.

Individual layer and multilayer embodiment

In all embodiment shown in Fig. 1-6D, core pipe and fins set are that single layer structure is made.In other words, core pipe and fins set are to be made by the needed metal material of individual layer, for example layer of copper, layer of aluminum, one deck stainless steel, one deck carbon steel or the like.But the present invention is not limited to this, and among disclosed in this application any embodiment, core pipe and/or fins set can be configured to sandwich construction.

Referring now to Fig. 7, show multilayer core pipe 5010.This core pipe 5010 comprises first material layer 5080 and second material layer 5090.The inner surface 5011 of first material layer 5080 forms the internal pipeline 5040 of core pipe 5010.Second material layer 5090 is around first material layer 5080.Outer surface 5012 forms the outer surface of core pipe 5010.

The outer surface 5081 of first material layer 5080 and the inner surface 5091 of second material layer 5090 basically very closely the surface contact, to avoid to the serious negative influence of thermal conductivity generation between two-layer 5080,5090.The connection of

layer

5080,5090 can be finished dealing with by coating or pressure rolling.

Can make by identical or different material for first and second layer 5080,5090.Suitable material is including but not limited to copper, aluminium, carbon steel and stainless steel.Best is, first/interior layer 5080 by have than second/exterior layer 5090 more the material of high thermal expansion coefficient make, to guarantee the compact surface contact under the heat condition that improves.

Though in multilayer core pipe 5010, with two layers of material as an example, can use any number of plies if desired.In addition, though core pipe 5010 is single chip architecture types, it should be understood that the multilayer notion also can use, and be not limited only to disclosed any many parts core pipe configuration among top Fig. 1-5C.

Referring now to Fig. 8, show the part of multilayer fins set 5020.Fins set 5020 comprises first material layer 5025 and second material layer 5026.The lower surface 5027 of first material layer 5025 contacts with the upper face 5028 of second material layer 5026 is closely surperficial basically, to avoid that the thermal conductivity between the

layer

5025,5026 is produced serious negative influence.The connection of

layer

5025,5026 can be finished dealing with by coating or pressure rolling.

Can make by identical or different material for first and second layer 5025,5026.Suitable material is including but not limited to copper, aluminium, carbon steel and stainless steel.When being connected to the core pipe, the basal surface 5029 of the second layer 5026 contacts with the outer surface of core pipe.Do not use the welding technology of packing material multilayer fins set 5020 to be welded direct among the embodiment of core pipe in utilization, for soldering, first material layer 5025 should be by making with the metallurgical compatible material of the material of core pipe.

Though in multilayer fins set 5020 illustrated two layers of material, if desired, can adopt any number of plies.In addition, multilayer fin notion can be applied to top any fin type of discussing in Fig. 1-4B.

It should be noted that at last any structure of discussing with reference to Fig. 1-8 substitutes to combine in any form as required and makes up required finned tube device above.

Manufacture method for example

Two examples according to the method for manufacturing finned tube device of the present invention will be described in further detail below.It should be understood that the general manufacturing principle of discussing below can be used for making up the top any finned tube device embodiment that discusses at Fig. 1-8, except their growth.In addition, it should be understood that any technology and the configuration aspects discussed are applicable to structure and the technology of discussing below.

Fig. 9 A-E shows the key step of the single chip architecture finned tube device 3100 of design of graphics 6C.Certainly, any single chip architecture of discussing at Fig. 6 A-6D above similarly manufacturing technology can be used for.

From Fig. 9 A, provide individual layer basic slab construction 3010A.Slab construction 3010A has upper major surface 3012 and lower main face 3011, they also be basically the plane and without any obvious bending.Top and bottom

major surface

3012,3011 delimited the side boundary by right side edge 3110 and left side edge 3111.Top and bottom

major surface

3012,3011 delimited vertical boundary by edges at two ends (numeral of no use marks).Slab construction 3010A is a rectangular shape and if desired, can perhaps form in any other suitable mode from the needed size of a volume sheet metal cutting of machining location.Best, slab construction 3010A is made by carbon steel.But as mentioned above, the present invention is not limited only to this.

Referring now to Fig. 9 B,, make up first and second groups of

fin

3020A, 3020B in case made up slab construction 3010A (or obtaining in addition) with the size and dimension of needs.In this embodiment, by the single metal bending tablet is formed among first and second groups of

fin

3020A, 3020B each to the wavy configuration of needs, this is wavy to have crest that stops and the trough that stops at

bottom

3024A, 3024B on ridge 3023A, 3023B.First and second groups of

fin

3020A, 3020B preferably are made of carbon steel coupon.But as discussed above, the present invention is not limited to this.In addition if desired, fins set 3020A, 3020B can be constructed as top disclosed any other configuration and other growth.

In case made up first and second groups of

fin

3020A, 3020B (or obtaining in addition), first group of fin 3020A be placed on the top surface 3012 of slab construction 3010A and longitudinal extension between edges at two ends.Similarly, second group of fin 3020B also is placed on the top main surfaces 3012 of slab construction 3010A and longitudinal extension between edges at two ends.Certainly, first and second groups of

fin

3020A, 3020B need not extend on the entire longitudinal length of plate 3010A.

Top and the right side edge 3110 that first group of fin 3020A is placed on the top main surfaces 3012 of slab construction 3010A has distance and in its vicinity.Second group of fin 3020B also is placed on the top main surfaces 3012 of slab construction 3010A, and still the left side edge 3111 with slab construction 3010A has distance also in its vicinity.First and second groups of

fin

3020A, 3020B also separate mutually.

The result who places fins set 3020A, 3020B above is to have first the vertical belt-like zone 3012A that does not have fin substantially between first group of fin 3020A and right side edge 3110.Between second group of fin 3020B and left side edge 3110, there be second the vertical belt-like zone 3012B that does not have fin substantially.At last, between first group of fin 3020A and second group of fin 3020B, there be the 3rd the vertical belt-like zone 3012C that does not have fin substantially.

Handle (for example laser weld) by the melting welding of not using packing material then first and second groups of

fin

3020A, 3020B are welded direct to slab construction 3010A.Be more preferably, base plate 3024A, the 3024B of first and second groups of

fin

3020A, 3020B is that continous way (contiguously) laser weld is to slab construction 3010A.The laser weld processing procedure can be finished by relatively moving between laser bar and device 3900 (that is, slab construction 3010A and first and second groups of

fin

3020A, 3020B).In example, relatively moving is along

base plate

3024A, 3024B from left to right or just in time opposite.In one embodiment, preferably will install 3900 and on the assembly line form is arranged, move, and keep laser bar fixing to avoid unwanted direct mobile laser bar.

For base plate 3024A, the 3024B that keeps first and second groups of

fin

3020A, 3020B contacts with the upper surface 3012 of plate structure 3010A in the laser welder process, it is adjacent with laser bar and/or guide this laser bar that base

plate

3024A, 3024B are pressed in wheel on the slab construction 3010A or other part.Certainly, if desired, can use other extrusion technique, for example clamp, vacuum pressure or the like.

In case first and second groups of

fin

3020A, 3020B are soldered to slab construction 3010A, with the first and second belt-

like zone

3012A, 3012B along the arrow B bending to form side flange 3114,3115 (as shown in Fig. 9 C) respectively.More specifically, the first and second belt-

like zone

3012A, 3012B is bent downwardly so that the imaginary plane that forms from the residue planar section of bottom major surface 3011 extends.

Referring now to Fig. 9 C,

side flange

3114,3115 crooked about 90 degree.But

side flange

3114,3115 can form above-mentioned Any shape or its growth.Can utilize suitable bender or similar machine to finish bending.

Though bending/

formation side flange

3114,3115 can be finished before or after fins set 3020A, 3020B are welded to plate structure 3010A, but preferably at first carrying out fin connects, because fins set 3020A, 3020B can be for plate structure 3010A provide hardness in the flange forming process, therefore eliminate the undesired bending in some part of plate 3010A.In addition,

curved side flange

3114,3115 can cause planar section that fins set 3020A, 3020B will be welded to owing to residual stress buckles before connecting fins set 3020A, 3020B.This does not expect that because when the surface is the plane, laser weld can be with carrying out than high integrality.

Referring now to Fig. 9 D, in

case side flange

3114,3115 composing plate structure 3010A, then the 3rd the belt-like zone 3012C bending that slab construction 3010A is pointed out along arrow C.Can finish bending process with suitable bender or similar machine.Continue crooked about 180 degree along arrow C and be in contact with one another, as shown in Fig. 9 E up to right side edge 3110 (being the part of side flange 3114) and left side flange 3111 (being the part of side flange 3115).

Referring now to Fig. 9 E, plate structure 1010A is shown as along belt-like zone 1012C crooked fully, and the right side edge 3110 of side flange 3114 contacts with the left side edge 3111 of side flange 3115 like this, therefore forms first vertical contact-making surface 3126.In this point, right side edge 3110 and left side edge 3111 contact-making surface 3126 continous ways welding along the longitudinal are so that form the inner passage 3040 and the core pipe 3010 of sealing.Can realize connecting welding with above-described butt seam welding technology.

It is evident that, can need not brazing and produce finned tube device 3100 (with above-described any other embodiment) fully.

Figure 10 A-E shows the key step of the finned tube device 100 of making finned tube device, especially Fig. 1-3C that multi-disc core pipe is arranged.Certainly, similarly manufacturing technology can be used to have any finned tube device of multi-disc core pipe discussed above.

From Figure 10 A, first slab construction 10A and second slab construction 10B are provided.

Slab construction

10A, 10B be by upper major surface 12A, 12B and lower main face 11A, 11B, they also all be basically the plane and without any obvious bending.The top of first plate structure 10A and bottom major surface 12A, 11A delimit the side boundary by right side edge 110 and left side edge 111.The top of first plate structure 10A and bottom major surface 12A, 11A are vertically delimitated by edges at two ends (not marking with numeral).Similarly, the top of second plate structure 10B and bottom major surface 12B, 11B delimit the side boundary by right side edge 119 and left side edge 118.The top of second plate structure 10B and bottom major surface 12B, 11B are vertically delimitated by edges at two ends (not marking with numeral).

Slab construction

10A, 10B are rectangular shapes and if desired, can perhaps form in any other suitable mode from the needed size of a volume sheet metal cutting of machining location.Best,

slab construction

10A, 10B are made by carbon steel.But as mentioned above, the present invention is not limited only to this.

Referring now to Figure 10 B,, make up first and second groups of

fin

20A, 20B in case made up

slab construction

10A, 10B (or obtaining in addition) with the size and dimension of needs.In this embodiment, by the single metal bending tablet is formed among first and second groups of

fin

20A, 20B each to the wavy configuration of needs, this is wavy to have crest that stops and the trough that stops at

bottom

24A, 24B on ridge 23A, 23B.First and second groups of

fin

20A, 20B preferably are made of carbon steel coupon.But as discussed above, the present invention is not limited to this.In addition if desired, fins set 20A, 20B can be constructed as top disclosed any other configuration and other growth.

In case made up first and second groups of

fin

20A, 20B (or obtaining in addition), the top surface 12A that first group of fin 20A is placed on first slab construction 10A goes up and longitudinal extension between edges at two ends.Similarly, second group of fin 20B top main surfaces 12B of being placed on second slab construction 10B goes up and longitudinal extension between edges at two ends.Certainly, first and second groups of

fin

20A, 20B need not extend on the entire longitudinal length of

plate

10A, 10B.

Particularly, first group of fin 20A top and right side edge 110 and left side edge 111 of being placed on the top main surfaces 12A of first slab construction 10A all has distance.The result who places fins set 20A like this is, between first group of fin 20A and right side edge 110, there is first the vertical belt-like zone 12C that does not have fin substantially, and has second the vertical belt-like zone 12D that does not have fin substantially between fins set 20A and the left side edge 110.

Similarly, second group of fin 20B top and right side edge 119 and left side edge 118 of being placed on the top main surfaces 12B of second slab construction 10B all has distance.The result who places fins set 20B like this is, between second group of fin 20B and right side edge 119, there is first the vertical belt-like zone 12E that does not have fin substantially, and has second the vertical belt-like zone 12F that does not have fin substantially between fins set 20B and the left side edge 118.

fin

20A, 20B are welded direct to slab construction 10A, 10B.Be more preferably, base plate 24A, the 24B of first and second groups of

fin

20A, 20B is that the continous way laser weld is to slab construction 10A, 10B.The laser weld processing procedure can be finished by relatively moving between laser bar and device 900A, 900B.In example, relatively moving is along

base plate

24A, 24B from left to right or just in time opposite.In one embodiment, preferably will install 900A, 900B and on the assembly line form is arranged, move, and keep laser bar fixing to avoid unwanted direct mobile laser bar.

For base plate 24A, the 24B that keeps first and second groups of

fin

20A, 20B contacts with upper surface 12A, the 12B of

plate structure

10A, 10B in the laser welder process, it is adjacent with laser bar and/or guide this laser bar that base

plate

24A, 24B are pressed in wheel on slab construction 10A, the 10B or other part.Certainly, if desired, can use other extrusion technique, for example clamp, vacuum pressure or the like.

Though be shown as fins set 20A, 20B is separately to be welded to

plate structure

10A, 10B, and in certain embodiments, one or more fins set can be soldered to single plate structure, cut into a plurality of plate structures then.

In case first group of fin 20A is soldered to slab construction 10A, with the first and second belt-

like zone

12C, 12D along arrow D bending to form side flange 114,115 (as shown in Figure 10 C) respectively.More specifically, the first and second belt-

like zone

12C, 12D is downward and outwardly-bent so that the imaginary plane that forms from the residue planar section of bottom major surface 11A extends.Similarly, in case second group of fin 20B is soldered to slab construction 10B, with the first and second belt-like zone 12E, 12F along the arrow E bending to form side flange 123,122 (as shown in Figure 10 C) respectively.More specifically, the first and second belt-like zone 12E, 12F is downward and outwardly-bent so that the imaginary plane that forms from the residue planar section of bottom major surface 11B extends.

Referring now to Figure 10 C, side flange 114-115,122-123 are downward and outwardly-bent.But side flange can form above-mentioned Any shape or its growth.Can utilize suitable bender or similar machine to finish bending.

Though bending/formation side flange 114-115,122-123 can finish before or after fins set 20A, 20B are welded to

plate structure

10A, 10B, but preferably at first carrying out fin connects, because fins set 20A, 20B can be for

plate structure

10A, 10B provide hardness in the flange forming process, therefore eliminate the undesired bending in some part of plate 10A, 10B.In addition, curved side flange 114-115,122-123 can cause planar section that fins set 20A, 20B will be welded to owing to residual stress buckles before connecting fins set 20A, 20B.This does not expect that because when the surface is the plane, laser weld can be with carrying out than high integrality.

Referring now to Figure 10 D, in case side flange 114-115,122-123

composing plate structure

10A, 10B, then arrange first plate structure 10A and second plate structure 10B opposes their lower surface 11A, 11B mutually, and side flange 114-115,122-123 are linear array.Move to plate

structure

10A, 10B adjacent then and syntople (as above being discussed), as shown in Figure 10 E with reference to Fig. 3 A.

Referring now to Figure 10 E,

plate structure

10A, 10B show adjacent arrangement, wherein, the basal surface of the side flange 114,115 of first plate structure 10A contacts with the top surface of the side flange 122,123 of second plate structure 10B, therefore forms first and second vertical contact-making surface 126,127.In this point, lateral edges 126,127 continous ways of contact-making surface along the longitudinal as discussed above weld together, so that form the inner passage 40 and the core pipe 10 of sealing.Can realize connecting welding with above-described seam welding technology.

It is evident that, can need not brazing and produce finned tube device 100 (with above-described any other embodiment) fully.

The power plant

Referring now to Figure 11, show according to power plant 6000 of the present invention.Generally speaking, power plant 600 is Lan Shi cycle power plants, comprises boiler 6100, turbine 6200, air cooled condenser 6300 and pump 6400.Air cooled condenser 6300 comprises above-described one or more finned tube device.

In another embodiment, the present invention can be the air cooled condenser that comprises above-described one or more finned tube devices.

Embodiment in addition with plain carbo-nitriding (FNC) coating of iron

In a specific embodiment, the air cooled condenser of being invented adopts carbon steel (A1008/1010) fin and pipe unit, has surface conversion treatment instead of external corrosion-inhibiting coating.In one embodiment, this processing procedure is that the plain carbo-nitriding of iron is handled.

In this embodiment, the inner surface of pipe is exposed in the steam under vacuum condition in anaerobic environment.Along with the corrosion of the inner surface of carbon steel pipe, form one deck magnet protection steel surface and be subjected to further corrosion.Therefore, the processing that do not need to replenish of the inner surface of finned tube prevents corrosion.But the outer surface of carbon steel finned tube needs anti-corrosion protection.

As mentioned above, surface conversion treatment can the instead of external corrosion-inhibiting coating.This processing procedure is that the plain carbo-nitriding of the iron of following outline is handled.

At first, finned tube in air ambient, be preheating to～750 °F.Then the finned tube parcel is immersed temperature in 900 to 1165 molten salt pools.The staple of fused salt is alkalization cyanate and an alkalization carbonate active in air.Carbo-nitriding is handled and is carried out in molten salt pool.Active element in the pond is the alkalization cyanate.Along with temperature raises, the alkalization cyanate causes the reaction with steel surface.The carbonitrided case that shape is made up of external mix layer (nitrided iron) and following diffusion layer.This reaction also causes the alkalization carbonate that forms regeneration.This processing procedure continues 60 to 120 minutes.

To wrap up then and shifting out, and be placed on temperature maintenance in 750 to 850 oxidation cooling bay from molten salt pool.Oxidation pond makes at surface formation iron oxide layer (magnet).To wrap up then and shifting out, be cooled to ambient temperature, and clean by parcel being placed on quench in the pond from oxidation pond.

The final step of FNC processing procedure is exactly will wrap up immersing the sealant pond.Comprise oil emulsion in this pond.Long enough is so that oil emulsion can penetrate the aperture of mixed layer in the parcel immersion pond.To wrap up from the sealant pond then and shift out and clean.

Though describe and explained the invention enables those skilled in the art easily to make and use it with enough details,, do not break away from the spirit and scope of the present invention various to substitute, revise and improve be conspicuous.

Claims

1. finned tube device that is used for air-cooled type heat exchanger comprises:

The core pipe, it has the inner passage that is used to transmit the fluid that will cool off, and described core pipe has non-circular cross section; And

At least one bond pads is to the fin of the outer surface of described core pipe.

2. finned tube device as claimed in claim 1, wherein, described at least one group of fin is wavy plate, it has crest that ends at ridge and the trough that ends at base plate.

3. finned tube device as claimed in claim 2, wherein, the base plate of the trough of described wavy plate is the outer surface of continous way laser weld to described core pipe.

4. finned tube device as claimed in claim 3, wherein, the base plate of described trough comprises the basically flat portions of continous way laser weld to the outer surface of described core pipe.

5. finned tube device as claimed in claim 2, wherein, the base plate of the described trough of described wavy thin plate is with the outer surface of stitch laser weld to described core pipe.

6. finned tube device as claimed in claim 5 also comprises: the exposed region that covers described at least one group of fin and described core pipe based on the coating of metal.

7. finned tube device as claimed in claim 6, wherein, described metal is a zinc.

8. finned tube device as claimed in claim 1, wherein, described at least one group of finned tube is wavy plate, and it has crest that ends at ridge and the trough that ends at base plate, and described crest and trough are the quadrature shapes.

9. finned tube device as claimed in claim 1, wherein, described core pipe is a mono-layer tube, and described at least one group of fin is monolayer material.

10. finned tube device as claimed in claim 6, wherein, described core pipe is become by carbon steel, stainless steel, aluminium or copper, described at least one group of fin become by carbon steel, stainless steel, aluminium or copper, and the material of described core pipe and described at least one group of fin can weld-compatible from the metallurgy.

11. finned tube device as claimed in claim 1, wherein, described core pipe is a multilayer pipe, and described at least one group of fin is multilayer material.

12. finned tube device as claimed in claim 1 also comprises:

The outer surface of described core pipe comprises the surface of opposed substantially flat; And

Be soldered to one group of fin on the surface of each described substantially flat.

13. finned tube device as claimed in claim 1 also comprises: the resistant material coating that covers the exposed region of described at least one group of fin and described core pipe.

14. finned tube device as claimed in claim 13, wherein, described coating is baked phenolic coating or Zn-based plating layer or aluminium base coating.

15. finned tube as claimed in claim 14, wherein, described coating layer thickness is less than 100 microns.

16. finned tube device as claimed in claim 1 wherein, utilizes the welding technology that does not use packing material described at least one group of fin to be soldered to the outer surface of described core pipe.

17. finned tube device as claimed in claim 1, wherein, described at least one group of fin comprises a plurality of fins that separate, and described fin is soldered to the outer surface of described core pipe individually.

18. finned tube device as claimed in claim 1 also comprises:

The outer surface of described core pipe, it comprises the surface of opposed substantially flat;

Be soldered to one group of fin on the surface of each described substantially flat;

Described fins set is a wavy plate, and it has crest that ends at ridge and the trough that ends at base plate, and described base plate has the part of substantially flat;

The base plate of the described trough of described wavy plate is to the surface soldered of the substantially flat of described core pipe along the substantially flat of described base plate part;

Cover the resistant material coating of the exposed region of described at least one group of fin and described core pipe;

The fins set that is soldered to the outer surface of described core pipe adopts the welding technology that does not use packing material.

19. finned tube device as claimed in claim 1, wherein, described core pipe is to be made of the shape that single plate structure bends to described core pipe, like this, has vertical contact-making surface, and described vertical contact-making surface continous way welding is to form described core pipe.

20. finned tube device as claimed in claim 19, wherein, described vertical contact-making surface is to form by contact between the second side edge of the first side edge of described plate structure and described plate structure, described first and second lateral edges be butt seam welding together.

21. finned tube device as claimed in claim 19, wherein, described vertical contact-making surface is by the basal surface of first side flange of forming described plate structure and form that contact forms between the top surface of second side flange of described plate structure, and described first and second side flanges stitch welded together.

22. finned tube device as claimed in claim 1, wherein, described core pipe is that a plurality of plate structures by the transverse part that bends to described core pipe constitute, and the adjacent arrangement of described transverse part is so that exist a plurality of vertical contact-making surfaces, and described vertical contact-making surface continous way welding is to form described core pipe.

23. finned tube device as claimed in claim 22, first plate structure that comprises first transverse part that bends to described core pipe, second plate structure with second transverse part that bends to described core pipe, described first and second adjacent arrangement of transverse part be so that exist first and second vertical contact-making surface, and described first and second vertical contact-making surface continous way are welded to form described core pipe.

24. finned tube device as claimed in claim 23, wherein, described first and second vertical contact-making surface are to contact between the lateral edges by described first and second transverse part to form, and described lateral edges butt seam welding together.

25. finned tube device as claimed in claim 23, wherein, described first and second vertical contact-making surface are by the basal surface of the side flange of forming described first transverse part and form that contact forms between the top surface of side flange of described second transverse part, and described side flange stitches welded together.

26. a finned tube device that is used for air-cooled type heat exchanger comprises:

The core pipe, it has the inner surface of forming the passage be used to transmit the fluid that will cool off, and outer surface, this outer surface have first substantially flat the surface and with the surface of opposed second substantially flat of described first substantially flat surfaces;

Described core pipe constitutes from the single piece plate structure that bends to described core tube shape, has vertical contact-making surface like this, and described vertical contact-making surface continous way welding is to form described core pipe; And

Be connected to each one group of fin on the surface of described first and second substantially flat.

27. finned tube device as claimed in claim 26, wherein, described vertical contact-making surface is to form by contact between the second side edge of the first side edge of described slab construction and described slab construction, described first and second lateral edges be butt seam welding together.

28. finned tube device as claimed in claim 26, wherein, described vertical contact-making surface is by the basal surface of first side flange of forming described plate structure and form that contact forms between the top surface of second side flange of described plate structure.

29. finned tube device as claimed in claim 28, wherein, described first side flange and second side flange stretch out from the outer surface of described core pipe, and described first and second side flange seam are welded together.

30. finned tube device as claimed in claim 28, wherein, described first side flange and second side flange extend to described channel interior, and described first welds together by welding technology with second side flange.

31. finned tube device as claimed in claim 26, wherein, described vertical contact-making surface is by the basal surface of first side flange of forming described slab construction and form that contact forms between the top surface of second side flange of described slab construction, and described first welds together by the welding technology that does not use packing material with second side flange.

32. finned tube device as claimed in claim 26 also comprises:

Described fins set is a wavy plate, and described wavy plate has crest that ends at ridge and the trough that ends at base plate, and described base plate has the part of substantially flat;

The welding technology that packing material is not used in described fins set utilization partly is soldered to the surface of described first and second substantially flat along the substantially flat of described base plate.

33. finned tube device as claimed in claim 32 also comprises: the resistant material coating that covers described fins set and described core pipe.

34. finned tube device as claimed in claim 33, wherein, described coating is baked phenolic coating or Zn-based plating layer or aluminium base coating.

35. finned tube device as claimed in claim 32, wherein, described fins set be along the substantially flat of described base plate part with stitch laser weld or continous way laser weld to described first and second substantially flat surfaces.

36. finned tube device as claimed in claim 26, wherein, described slab construction is a monolayer material.

37. finned tube device as claimed in claim 26, wherein, described slab construction is a multilayer material.

38. a finned tube device that is used for air-cooled type heat exchanger comprises:

Described core pipe constitutes from the slab construction of first transverse part of bending to described core pipe and second slab construction bending to second transverse part of described core pipe, the adjacent arrangement of described first and second transverse parts is to exist first and second vertical contact-making surface, and described first welds to form described core pipe with second vertical contact-making surface continous way;

In described first or second the vertical contact-making surface at least one be by: contact between the lateral edges of (1) described first and second transverse part, described lateral edges butt seam welding together, or the basal surface and forming between the top surface of side flange of described second transverse part that (2) form the side flange of described first transverse part contacts, and described side flange is welded together and forms; And

39. finned tube device as claimed in claim 38, wherein, described first and second vertical contact-making surface all are by the basal surface of the side flange of forming described first transverse part and form that contact forms between the top surface of side flange of described second transverse part.

40. finned tube device as claimed in claim 39, wherein, the side flange of described first and second transverse part stretches out from the outer surface of described core pipe, and described first and second side flange seam are welded together.

41. finned tube device as claimed in claim 39, wherein, the side flange of described first and second transverse part extends to described channel interior, and described first and second side flange stitch welded together.

42. finned tube device as claimed in claim 38, wherein, described first or second vertical contact-making surface are to form by contact between the lateral edges of described first and second transverse part.

43. finned tube device as claimed in claim 38 also comprises:

Described fins set is a wavy plate, and described wavy plate has crest that ends at ridge and the trough that ends at base plate; And

The welding technology that packing material is not used in described fins set utilization is soldered to the surface of described first and second substantially flat along described base plate.

44. a finned tube device that is used for air-cooled type heat exchanger comprises:

The core pipe, it has the inner surface of forming the inner passage be used to transmit the fluid that will cool off, and described core pipe has non-circular cross section;

At least one group of fin that is connected to the outer surface of described core pipe;

Cover the baked phenolic coating of described at least one group of fin and described core pipe.

45. a manufacturing is used for the method for the finned tube device of air-cooled type heat exchanger, comprising:

A) provide the core pipe with inner surface, described inner surface is formed for transmitting the inner passage of the fluid that will cool off, and described core pipe has non-circular cross section;

B) provide at least one group of fin;

C) utilize the welding technology that does not use packing material described at least one group of fin to be soldered to the outer surface of described core pipe.

46. method as claimed in claim 45 also comprises:

Step b) comprises: sheet-metal plates is converted into waveform to form described at least one group of fin, and described wavy metal sheet has crest that ends at ridge and the trough that ends at base plate;

Step c) comprises: utilize the described welding technology that does not use packing material the base plate of described wavy metal sheet to be soldered to the outer surface of described core pipe.

47. method as claimed in claim 46 also comprises:

Step c) comprises: utilize the described welding technology that does not use packing material the base plate stitch bonding of described wavy sheet-metal plates to be connected to the outer surface of described core pipe;

D) use coating to apply described at least one group of fin and described core pipe based on metal.

48. method as claimed in claim 47, wherein, described metal is a zinc.

49. method as claimed in claim 46 also comprises:

Step c) comprises: utilize the described welding technology that does not use packing material the base plate continous way of described wavy sheet-metal plates to be soldered to the outer surface of described core pipe.

50. method as claimed in claim 45 also comprises:

D) apply described at least one group of fin and described core pipe with resistant material;

Wherein, described coating is baked phenolic coating or Zn-based plating layer or aluminium base coating.

51. method as claimed in claim 45 also comprises:

Step b) comprises: sheet-metal plates is converted into waveform to form described at least one group of fin, and described wavy sheet metal has crest that ends at ridge and the trough that ends at base plate, and described base plate has the part on basic plane;

Step c) comprises: with the basic planar section laser weld of the base plate of the described wavy sheet metal outer surface to described core pipe.

52. method as claimed in claim 45 also comprises:

Step b) comprises: sheet-metal plates is converted into waveform to form described at least one group of fin, and described wavy sheet metal has crest that ends at ridge and the trough that ends at base plate;

Step c) comprises: be pressed on the outer surface of described core pipe with the base plate of extruder member with described wavy sheet-metal plates, described extruder member guiding laser bar is soldered to the base plate of described wavy sheet-metal plates with laser the outer surface of described core pipe.

53. method as claimed in claim 45, wherein, described core pipe is a monolayer material, and described at least one group of fin is monolayer material.

54. method as claimed in claim 53, wherein, described core pipe is become by carbon steel, stainless steel, aluminium or copper, and described at least one group of fin become by carbon steel, stainless steel, aluminium or copper, can weld-compatible on the material metallurgy of described core pipe and described at least one group of fin.

55. method as claimed in claim 45, wherein, the outer surface of described core pipe comprises the surface of opposed substantially flat; And step c) also comprises: utilize the described welding technology that does not use packing material described fins set to be soldered to the surface of each described substantially flat.

56. method as claimed in claim 45, wherein, step a) comprises:

The slab construction of substantially flat is provided;

The slab construction of described substantially flat is bent to the shape of described core pipe so that there is vertical contact-making surface;

Continous way is welded described vertical contact-making surface to form described core pipe.

57. method as claimed in claim 56, wherein, described vertical contact-making surface is to contact between second lateral edges by first lateral edges of described slab construction and described slab construction to form, and described first is in the same place with second lateral edges butt weld.

58. method as claimed in claim 56, wherein, described vertical contact-making surface is by the basal surface of first side flange that bends to described slab construction and bends to contact between the top surface of second lateral edges of described slab construction and form, and described first and second side flange seam are welded together.

59. method as claimed in claim 58, wherein, described first stretches out with the outer surface of second side flange from described core pipe, forms from the outstanding longitudinal ridge of the outer surface of described core pipe, and described first stitches welded together with second side flange.

60. method as claimed in claim 58, wherein, described first extends to described channel interior with second side flange.

61. method as claimed in claim 56, wherein, described at least one group of fin was soldered to the part of described slab construction before bending.

62. method as claimed in claim 61, wherein, the described part of described slab construction keeps smooth basically after bending.

63. method as claimed in claim 45, wherein, step a) comprises:

First smooth basically slab construction is provided;

Second smooth basically slab construction is provided;

Described first smooth basically slab construction is bent to first transverse part of described core pipe;

Described second smooth basically slab construction bent to second transverse part of described core pipe;

Described first arranged in adjacent mode with second transverse part so that form first and second vertical contact-making surface;

Described first welded to form described core pipe with second vertical contact-making surface continous way.

64. as the described method of claim 63, wherein, with described first smooth basically slab construction bending, so that described first transverse part comprises the surface that first is smooth basically, crooked described second smooth basically slab construction, so that described second transverse part comprises second smooth basically surface, and wherein, step c) comprises described at least one group of fin is soldered to each described first and second smooth basically surface.

65., wherein, before bending, described fins set is soldered to the slab construction of described first and second substantially flat as the described method of claim 64.

66. as the described method of claim 63, wherein, described first and second vertical contact-making surface are to contact between the lateral edges by described first and second transverse part to form, described first is in the same place with second lateral edges butt weld.

67. as the described method of claim 63, wherein, described first and second vertical contact-making surface are by the basal surface of the side flange that bends to described first slab construction and bend to contact between the top surface of side flange of described second slab construction and form.

68. as the described method of claim 67, wherein, described side flange stretches out from the outer surface of described core pipe, forms from the outstanding longitudinal ridge of the outer surface of described core pipe, described first stitches welded together with second side flange.

69. as the described method of claim 67, wherein, described first extends to described channel interior with second side flange.

70. method as claimed in claim 45, wherein, step a) comprises:

The slab construction of a plurality of substantially flats is provided;

The slab construction of described a plurality of substantially flats is bent to the transverse part of described core pipe;

Described transverse part is arranged in adjacent mode so that form a plurality of vertical contact-making surfaces;

Continous way is welded described a plurality of vertical contact-making surface to form described core pipe.

71. a manufacturing is used for the method for the finned tube device of air-cooled type heat exchanger, comprising:

A) provide smooth basically slab construction, it has first lateral edges, second lateral edges, first terminal edges, second terminal edges, first first type surface and second first type surface; Described first and second terminal edges define the longitudinal length of the slab construction of described substantially flat;

B) provide first group of fin and second group of fin;

C) utilize the welding technology do not use packing material described first group of fin to be soldered to the first of described first first type surface of the slab construction of described substantially flat; Described first group of fin and described first lateral edges keep at a certain distance away, so that described first first type surface has at described first group of fin and do not have first peripheral part of longitudinal extension between described first lateral edges of fin;

D) utilize described welding technology described second group of fin to be soldered to the second portion of described first first type surface of the slab construction of described substantially flat; Described second group of fin and described second lateral edges keep at a certain distance away, so that described first first type surface has the elongation part of longitudinal extension between described first and second groups of fins that do not have a fin, and at described second group of fin with there be not second peripheral part of longitudinal extension between described second lateral edges of fin;

E) described first and second peripheral part of the slab construction of described substantially flat is crooked so that extend from the plane that second first type surface of the slab construction of described substantially flat forms;

F) along the slab construction of the crooked described substantially flat of described elongation part, like this, described first and second part of described first first type surface are opposed surfaces, and first and second peripheral part of described bending are in contact with one another and form vertical contact-making surface;

G) continous way is welded described vertical contact-making surface so that form the core pipe, and wherein, described second first type surface forms the inner passage of described core pipe, and described first first type surface forms the outer surface of described core pipe.

72., also comprise as the described method of claim 71:

Step b) comprises: first sheet-metal plates is converted into wavy to form described first group of fin, second sheet-metal plates is converted into wavy forming second group of fin, described first and second wavy sheet-metal plates have crest that stops at ridge and the trough that stops at base plate;

Step c) and d) comprising: utilize described welding technology the base plate of described first and second wavy sheet-metal plates to be soldered to first first type surface of the slab construction of described substantially flat.

73., also comprise as the described method of claim 72:

Step c) and d) comprising: utilize welding technology the base plate stitch bonding of described first and second wavy sheet-metal plates to be connected to first first type surface of the slab construction of described substantially flat;

D) use coating to apply described core pipe and described first group and second group of fin based on metal.

74., also comprise as the described method of claim 72:

Step c) and d) comprise the base plate continous way laser weld of described wavy sheet-metal plates outer surface to described core pipe.

75., also comprise as the described method of claim 71:

H) apply described first group and second group of fin and described core pipe with resistant material;

76., also comprise as the described method of claim 71:

Step b) comprises: first sheet-metal plates is converted into wavy to form described first group of fin, second sheet-metal plates is converted into wavy to form second group of fin, described first has crest that stops at ridge and the trough that stops at base plate with second wavy sheet-metal plates, and described base plate has the part of substantially flat;

Step c) and d) comprising: utilize the part of laser welding technology, be soldered to first first type surface of the slab construction of described substantially flat the substantially flat of the base plate of described first and second wavy sheet-metal plates.

77. as the described method of claim 71, wherein, described vertical contact-making surface forms by contacting between described first lateral edges and described second lateral edges, described first is in the same place with second lateral edges butt weld.

78., also comprise as the described method of claim 71:

Step e) comprises: first peripheral part that first side flange is bent to the slab construction of described substantially flat, second side flange bent to second peripheral part of the slab construction of described substantially flat, described first extends from the plane of second first type surface formation of the slab construction of described substantially flat with second side flange;

Wherein, described vertical contact-making surface is to contact between the top surface by the basal surface of described first side flange and described second side flange to form.

79. as the described method of claim 78, wherein, described first and second side flange stretch out from the outer surface of described core pipe, form from the outstanding longitudinal ridge of the outer surface of described core pipe, described first and second side flange are that seam is welded together.

80. as the described method of claim 78, wherein, described first extends to described channel interior with second side flange.

81., wherein, before bending, second group of fin of described first combination is soldered to the slab construction of described substantially flat as the described method of claim 71.

82. as the described method of claim 71, wherein, finish after the bending, described first of the slab construction of described substantially flat keeps substantially flat with second part.

83. a manufacturing is used for the method for the finned tube device of air-cooled type heat exchanger, comprising:

B) provide at least one group of fin;

C) at least one group of fin is connected to the outer surface of described core pipe;

D) apply described at least one group of fin and described core pipe with baked phenolic coating or Zn-based plating layer or aluminium base coating.

84. a manufacturing is used for the method for the finned tube device of air-cooled type heat exchanger, comprising:

B) provide first group of fin and second group of fin;

C) described first group of fin is connected to first zone of first first type surface of the slab construction of described substantially flat; Described first group of fin and described first lateral edges keep at a certain distance away, so that the slab construction of described substantially flat has at described first group of fin and do not have first peripheral part of longitudinal extension between described first lateral edges of fin;

D) described second group of fin is connected to the second portion of described first first type surface of the slab construction of described substantially flat; Described second group of fin and described second lateral edges keep at a certain distance away, so that the slab construction of described substantially flat has the second portion of longitudinal extension between described first and second groups of fins that do not have a fin, and at described second group of fin with there be not the 3rd part of longitudinal extension between described second lateral edges of fin;

E) described first and the 3rd part of the slab construction of described substantially flat is crooked so that extend from the plane that second first type surface of the slab construction of described substantially flat forms;

F) along the slab construction of the crooked described substantially flat of described second portion, like this, described first and second part of described first first type surface are opposed surfaces, and first and the 3rd part of described bending are in contact with one another and form vertical contact-making surface;

85. as the described method of claim 84, wherein, step c) and/or d) at step e) and/or f) carry out afterwards.

86. a manufacturing is used for the method for the finned tube device of air-cooled type heat exchanger, comprising:

A) provide the slab construction of first substantially flat, it has first lateral edges, second lateral edges, first first type surface and second first type surface;

B) provide the slab construction of second substantially flat, it has first lateral edges, second lateral edges, first first type surface and second first type surface;

C) first group of fin is connected to first first type surface of the slab construction of described first substantially flat;

D) second group of fin is connected to first first type surface of the slab construction of described second substantially flat;

E) slab construction of described first substantially flat is bent to first transverse part of core pipe;

F) slab construction of described second substantially flat is bent to second transverse part of core pipe;

G) with described first and second adjacent arrangement of transverse part so that form first and second vertical contact-making surface;

H) described first and second vertical contact-making surface of continous way welding has the described core pipe of inner passage with formation, and described inner passage is made up of second first type surface of described first and second transverse part.

87., also comprise as the described method of claim 86:

Step c) comprises: first first type surface that described first group of fin is connected to the slab construction of described first substantially flat, so that keep at a certain distance away with described first and second lateral edges of the slab construction of described first substantially flat, therefore first and second lateral edges along the slab construction of described first substantially flat forms the part that does not have fin;

Step d) comprises: first first type surface that described second group of fin is connected to the slab construction of described second substantially flat, so that keep at a certain distance away with described first and second lateral edges of the slab construction of described second substantially flat, therefore first and second lateral edges along the slab construction of described second substantially flat forms the part that does not have fin;

Step e) comprises: with described second the first type surface bending that does not have the part of fin to the slab construction of described first substantially flat of the slab construction of described first substantially flat;

Step f) comprises: with described second the first type surface bending that does not have the part of fin to the slab construction of described second substantially flat of the slab construction of described second substantially flat;

Step g) comprises: with described first and second adjacent arrangement of transverse part, like this, the described of slab construction of described first and second substantially flat do not have the part of fin to be in contact with one another, forms described first with second vertical contact-making surface.

88., also comprise as the described method of claim 87:

Step e) comprises: do not have the part of fin to bend to first and second side flange the described of slab construction of described first substantially flat;

Step f) comprises: do not have the part of fin to bend to first and second side flange the described of slab construction of described second substantially flat;

Step g) comprises: with described first and second adjacent arrangement of transverse part, like this, the top surface of first of the basal surface of first of the slab construction of described first substantially flat and second side flange and the slab construction of described second substantially flat and second side flange is in contact with one another, form described first with second vertical contact-making surface.

89. as the described method of claim 88, wherein, the side flange of the slab construction of described first and second substantially flat stretches out from the outer surface of described core pipe, forms from the outstanding longitudinal ridge of the outer surface of described core pipe, and step h) comprise the weldering of described side flange seam.

90. as the described method of claim 88, wherein, the side flange of the slab construction of described first and second substantially flat extends in described inner passage.

91. a manufacturing is used for the method for the finned tube device of air-cooled type heat exchanger, comprising:

A) provide the slab construction of a plurality of first substantially flats;

B) at least one group of fin is connected in the slab construction of described a plurality of substantially flats one;

C) described a plurality of slab constructions are bent to the transverse part of core pipe;

D) with the adjacent arrangement of described transverse part so that form a plurality of vertical contact-making surfaces;

E) continous way is welded described a plurality of vertical contact-making surface, has the core pipe and the outer surface that comprises described at least one group of fin of inner passage with formation.

92. a finned tube device that is used for air-cooled type heat exchanger comprises:

The core pipe, it has the inner surface of the inner passage that is formed for transmitting the fluid that will cool off;

At least one group of fin, it is connected to the outer surface of described core pipe;

Wherein, the outer surface of described core pipe and described at least one group of fin will carry out the plain carbo-nitriding processing of iron.

93. as the described finned tube device of claim 92, wherein, the inner surface of described core pipe comprises one deck magnetite.

94. as the described finned tube device of claim 92, wherein, described core pipe and described at least one group of fin are formed from steel.

95. as the described finned tube device of claim 92, wherein, with described at least one group of fin laser weld to described core pipe.

96. as the described finned tube device of claim 92, wherein, the outer surface of described at least one group of fin and described core pipe comprises carbonitrided case.

97. as the described finned tube device of claim 92:

Wherein, the surface of the outer surface of described core pipe with first substantially flat with the surface of second surperficial relative substantially flat of described first substantially flat;

Described core pipe is made of with second slab construction that bends to second transverse part of described core pipe first slab construction of first transverse part that bends to described core pipe, described first and second adjacent arrangement of transverse part, there are first and second vertical contact-making surface like this, described first is connected welding to form described core pipe with second vertical contact-making surface;

Described first and second vertical contact-making surface are by the basal surface of the side flange of forming described first transverse part and form to contact between the top surface of side flange of described second transverse part and form;

Wherein, the side flange of described first and second transverse part extends to described channel interior, and described first and second side flange stitch welded together along described vertical contact-making surface.

98., wherein, utilize the welding technology that uses packing material to stitch welded together along described first with second vertical contact-making surface with second side flange described first as the described finned tube device of claim 97.

99. as the described finned tube device of claim 98, wherein, described at least one group of fin laser fusion welding is to described core pipe.

100. as the described finned tube device of claim 92, wherein, described at least one group of fin is wavy plate, has crest that ends at ridge and the trough that ends at base plate.

101. as the described finned tube device of claim 100, wherein, described trough comprises the part of substantially flat.

102. as the described finned tube device of claim 101, wherein, described crest comprises sweep.

103. as the described finned tube device of claim 92, wherein, described core pipe has non-circular cross section.

104. a manufacturing is used for the method for the finned tube device of air-cooled type heat exchanger, comprising:

A) provide the core pipe with inner surface, described inner surface is formed for transmitting the inner passage of the fluid that will cool off, and has at least one group of fin to be connected to the outer surface of described core pipe;

B) outer surface of described at least one group of fin and described core pipe is carried out surface conversion treatment, increase corrosion resistance.

105. as the described method of claim 104, wherein, described surface conversion treatment is that the plain carbo-nitriding of iron is handled.

106. as the described method of claim 105, wherein, described at least one group of fin and described core pipe are made of steel.

107. as the described method of claim 105, wherein, the plain carbo-nitriding of described iron is handled and is comprised:

Heat described core pipe and described at least one group of finned tube;

Described core pipe and described at least one group of fin are immersed the fused salt bathing pool;

Described core pipe and described at least one group of fin are immersed the oxidation cooling bay.

108. as the described method of claim 105, wherein, the plain carbo-nitriding of described iron is handled and is comprised: described core pipe and described at least one group of fin are immersed the fused salt bathing pool.

109. as the described method of claim 108, wherein, described fused salt bathing pool is included in alkalization cyanate very active in the air and alkalization carbonate.

110., also comprise: described core pipe and described at least one group of fin are placed water as the described method of claim 105.

111., also comprise: with described core pipe and described at least one group of fin seal as the described method of claim 105.

112. as the described method of claim 111, wherein, described encapsulation process comprises: described core pipe and described at least one group of fin are immersed in the oil emulsion bathing pool.

113. as the described method of claim 104, also comprise: the inner surface with described core pipe before step b) places low-pressure steam and anaerobic environment.

114. as the described method of claim 104, wherein, step a) comprises:

The slab construction of first substantially flat is provided, and it has first lateral edges, second lateral edges, first first type surface and second first type surface;

The slab construction of second substantially flat is provided, and it has first lateral edges, second lateral edges, first first type surface and second first type surface;

First group of fin is connected to first first type surface of the slab construction of described first substantially flat;

Second group of fin is connected to first first type surface of the slab construction of described second substantially flat;

The slab construction of described first substantially flat is bent to first transverse part of core pipe;

The slab construction of described second substantially flat is bent to second transverse part of core pipe;

With described first and second adjacent arrangement of transverse part so that form first and second vertical contact-making surface;

Continous way welding described first and second vertical contact-making surface.

115., also comprise as the described method of claim 114:

Described first group of fin is connected to first first type surface of the slab construction of described first substantially flat, so that keep at a certain distance away with described first and second lateral edges of the slab construction of described first substantially flat, therefore first and second lateral edges along the slab construction of described first substantially flat forms the part that does not have fin;

Described second group of fin is connected to first first type surface of the slab construction of described second substantially flat, so that keep at a certain distance away with described first and second lateral edges of the slab construction of described second substantially flat, therefore first and second lateral edges along the slab construction of described second substantially flat forms the part that does not have fin;

Described second the first type surface bending that does not have the part of fin to the slab construction of described first substantially flat with the slab construction of described first substantially flat;

Described second the first type surface bending that does not have the part of fin to the slab construction of described second substantially flat with the slab construction of described second substantially flat;

With described first and second adjacent arrangement of transverse part, like this, the described of slab construction of described first and second substantially flat do not have the part of fin to be in contact with one another, forms described first with second vertical contact-making surface.

116., also comprise as the described method of claim 115:

There is not the part of fin to bend to first and second side flange the described of slab construction of described first substantially flat;

There is not the part of fin to bend to first and second side flange the described of slab construction of described second substantially flat;

With described first and second adjacent arrangement of transverse part, like this, the top surface of first of the basal surface of first of the slab construction of described first substantially flat and second side flange and the slab construction of described second substantially flat and second side flange contacts, form described first with second vertical contact-making surface.

117. as the described method of claim 116, wherein, the side flange of the slab construction of described first and second substantially flat extends in described inner passage.