CN102313467A - Totally-closed flow-channel continuous-type centerless-pipe spiral baffle-plate heat-exchanger - Google Patents
Totally-closed flow-channel continuous-type centerless-pipe spiral baffle-plate heat-exchanger Download PDFInfo
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- CN102313467A CN102313467A CN2010102176895A CN201010217689A CN102313467A CN 102313467 A CN102313467 A CN 102313467A CN 2010102176895 A CN2010102176895 A CN 2010102176895A CN 201010217689 A CN201010217689 A CN 201010217689A CN 102313467 A CN102313467 A CN 102313467A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/228—Oblique partitions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a totally-closed flow-channel continuous-type centerless-pipe spiral baffle-plate heat-exchanger, which comprises baffle plates (1), connecting plates (2), a heat-transferring pipe (3), a shell (4), pipe plates (5) at both ends of the shell and an inlet-outlet pipe (6), and is characterized in that each baffle plate (1) is fan-shaped, more than two baffle plates (1) are continuously formed into a round section in a spiral stroke, each baffle plate (1) and the adjacent baffle plate (1) are connected through each connecting plate (2), and a spiral included angle larger than zero degree and smaller than 90 degrees is formed between each baffle plate (1) and each connecting plate (2). The invention has the characteristics that the vibration is reduced, the manufacture is easy, further large popularization and application can be facilitated, and the like.
Description
[technical field]
The shell-and-tube heat exchanger that the present invention relates to refine oil, industries such as chemical industry, electric power, metallurgy, light industry, medicine, food is used, specifically, relating to a kind of totally-enclosed runner continuous type does not have the central tube spiral baffle heat exchanger.
[background technology]
Popular industrialized spiral baffle heat exchanger in the world today; Be that the early 1990s in last century is outstanding by the chemical industry equipment scientist of research institute of preceding Czechoslovakia country. people such as Lu's card and outstanding Nimes Ken Siji propose first; Be characterized in the line style mode in the shape of a spiral that flows of shell side medium; The basic configuration of deflection plate is fan-shaped; Every deflection plate and housing shaft line form certain included angle, and adjacent deflection plate along the continuous similar helix of excircle, reaches the purpose that improve heat transfer efficiency thereby play the flow regime that changes shell-side fluid one of the end to end formation of periphery; And reduced relatively the damage that tube bank produces because of vibration, the service life of having improved heat exchanger.Application result shows that shell side adopts the helical baffles structure to adopt vertical segmental baffle structure to have the advantage that minimizing shell-side fluid pressure falls really.Experimental study proves; For being working medium with compressed air; Under identical reynolds number Re; The outer film heat transfer coefficient of the pipe of plain tube helical baffle heat exchanger be plain tube segmental baffle heat exchanger 1.25-1.8 doubly, the heat transfer coefficient maximum of helical baffle heat exchanger can be 1.39 times of segmental baffle heat exchanger, pressure drop is along with the difference of helical angle approximately can reduce 26%-60%.The heat exchanger of helical baffle supporting construction has the antiscale characteristic, is applicable to the augmentation of heat transfer of easy fouling, full-bodied medium such as crude oil, residual oil etc., but specific to each heat exchanger, its heat transfer efficiency is had nothing in common with each other again.
At present the domestic relevant patent of helical baffles tubular heat exchanger of having declared has reached 30 multinomially, is divided into discontinuous type helical baffles structure and continuous type helical baffles structure two big classes substantially.The design feature of discontinuous type spiral baffle heat exchanger is: the sector crosssection deflection plate by 2-4 piece 1/4th shell cross sections is built into an approximate helicoid; Being interrupted shape ground advances to the exit from shell side import department; Experiment shows that the heat exchanger helical baffle plate of this form can make shell fluid be approximate helical flow, and unit pressure drop exchange capability of heat opposing arch type deflection plate increases.But be by putting successively also with the certain angle of shell side axis is end to end just because of segmental baffle; The straight flange of adjacent two deflection plates has exposed a very obvious gaps after the staggered butt joint in top; Cause the shell side medium between two deflection plates, to form the short circuit leakage current; If actual measurement proof heat exchanger diameter surpasses 1000mm or heat exchange area surpasses 2000 square metres, its heat transfer characteristic maybe be no more than adopting bow type baffle arrangement.The design feature of continuous type spiral baffle heat exchanger is: deflection plate is similar to the flood dragon of common conveying solid-phase media; Its shape can be the complete helicoid that advances to outlet from housing inlet; Make medium accomplish in housing that relatively continuously steadily rotation is mobile; But deflection plate can not cover the housing central area of shell side, need take a central tube to remedy heat exchange loss as supplementary structure, derives multiple double helix or bivalve journey structure thus; But this type spiral baffle heat exchanger is generally through being fixed on deflection plate central tube or directly being enclosed within on the central tube; And in the actual production because heat-transfer pipe possibly have thousands of, so the appearance of central tube not only tied up the space of heat-transfer pipe, and in production and processing, makes very complicated and great difficulty is arranged; Give the further maximization of product and apply and bring difficulty, heat transfer efficiency that also can corresponding reduction heat exchanger.
Domestic manufacturing industry generally believes; The popularization difficulty of spiral baffle heat exchanger is to solve manufacturing issue; Because existing discontinuous type helical baffles structure adopts the distance sink tube location to fix heat-transfer pipe, but this situation manufacture difficulty is often greater than common bow type baffle arrangement.Existing ideotype helical baffles structure is because will be fixed on the central tube, and manufacture difficulty is just bigger, if again the processing of spiral baffle heat exchanger is based upon on Digit Control Machine Tool and the special type knife, and product then, it is poorer to apply effect.In addition; The medium fluid induced vibration causes heat exchanger tube to produce vibration under the duty; The vibration damage of vertical segmental baffle tubular heat exchanger is a major issue that influences the heat exchanger long-term operation; A lot of equipment have to stop using because this situation occurs, even the equipment that more renews, and have increased the production cost of enterprise.
The utility model patent that 200820117711.7 of patent No. ZL are called " pin-connected panel continuous type spiral baffle heat exchanger " discloses " a kind of pin-connected panel continuous type spiral baffle heat exchanger; be made up of agent structure, deflection plate, joint cover, heat-transfer pipe; it is characterized in that: described deflection plate is fan-shaped; one of which side straight flange is connected with joint cover at an angle of 90; another straight flange that is shaped as segmental baffle on the cross section, same garden is connected with the joint cover of adjacent deflection plate, forms the sealing screw passage that advances from shell side import department."; But " a side straight flange is connected with joint cover at an angle of 90 " of this utility model patent, difficulty was very big in the production process of reality; Wayward; In addition; This utility model patent proposes " axis of deflection plate and housing at an angle ", and proves in the actual enforcement: only in " 8 °～35 ° " scope, its heat transfer efficiency is only the most significant the axis angulation of deflection plate and housing; In addition, be dependent approximate isosceles triangle in the joint cover reality in this utility model patent, but be spliced to form that the difficulty in the manufacturing is very big, is unfavorable for extensive popularization through part approximate right angle triangle.
[summary of the invention]
The objective of the invention is to, to the above-mentioned defective that prior art exists, a kind of totally-enclosed runner continuous type that provides does not have the central tube spiral baffle heat exchanger; This heat transfer equipment helps reducing vibration, makes easily and be beneficial to the further maximization of product and characteristics such as apply.
A kind of totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger; The tube sheet and the import and export pipe that comprise deflection plate, joint cover, heat-transfer pipe, housing, housing two ends; Wherein said deflection plate is fan-shaped, and in a spiral stroke, the deflection plate more than two is formed a circular section continuously; Wherein be connected with joint cover between every deflection plate and the adjacent baffle, form greater than zero spiral angle between deflection plate and the joint cover less than 90 °; In housing; Some deflection plates are in a spiral stroke; Form a complete circular section; Promptly become a spiral sets of waveforms, some spiral sets of waveforms connect through joint cover: form from shell side import department and advance to the exit, with the sealing screw passage of inner walls with the common formation of heat-transfer pipe outer wall.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger; Said joint cover is approximate isosceles triangle; Its base is connected with the deflection plate of next-door neighbour's joint cover down stroke, and the other both sides of joint cover are connected with the deflection plate of next-door neighbour's joint cover up stroke; The corner dimension on the size of joint cover and the joint cover both sides except that the base is with the rotary-cut angle of deflection plate by approximate spiral flood dragon, and the length that promptly is stretched with the center of circle is definite with the trigonum that the radius of spin forms.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger, and said deflection plate becomes 8 °～35 ° helical angle with the housing axis.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger, and said deflection plate is provided with and is used for the through hole of heat-transfer pipe from wherein passing, and heat-transfer pipe passes the through hole and the tube sheet vertical fixing that is positioned at the housing two ends on the deflection plate.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger, and N*2 in the said heat exchanger/one heat-transfer pipe passes through hole and two the tube sheet vertical fixing on the deflection plate.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger, and the number of deflection plate is N*2 times that the heat exchanger shell pass helical duct is counted N on same circle cross-section.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger; After said heat-transfer pipe passes the deflection plate of same quadrant; Connect and compose a tube bank group successively with joint cover, the tube bank group of all quadrants forms the sealing screw passage that advances to the exit from shell side import department through deflection plate connection group plate.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger, and the number of said tube bank group is N*2 a times that the heat exchanger shell pass helical duct is counted N.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger, and said import and export pipe is located at an end of heat exchanger or the wherein both sides of a tube sheet at housing two ends.
Totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger, and said deflection plate and joint cover adopt metal material.
Technique scheme and design thereof:
Wherein, inner walls, deflection plate, joint cover and heat-transfer pipe outer wall constitute the sealing screw passage jointly; The mode that can announce welding that is connected of deflection plate and joint cover also can be through having other connected modes of same effect with welding; The used technologic material of deflection plate and joint cover can be copper or stainless steel etc.
Deflection plate be connected with joint cover and deflection plate and joint cover between form the design of the spiral angle be lower than 90 °; Not only make and reach the fixing more stable of deflection plate and heat-transfer pipe between the deflection plate; And strengthened the feasibility of whole heat exchanger processing, weakened the difficulty in the actual manufacturing greatly; In addition, joint cover is approximate isosceles triangle: not only blocked trigonum leakage current phenomenon; And the introducing of joint cover makes the material that flows to housing is produced thrust; Make shell side inside can form real spiral flow; Can effectively improve the heat exchange property of unit pressure drop; Simultaneously joint cover is approximate isosceles triangle and does not take to make the manufacturing of spiral baffle heat exchanger become a lot of easily through the mode of right angled triangle splicing independently.
In addition; A kind of totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger and does not adopt the mode that adds central tube, has promptly saved the space in the housing, has increased the capacity of treating the heat exchange material; And drawn back the spiral angle of deflection plate and joint cover; Make the helical flow path that has occurred real meaning in the heat transfer process, helical flow path totally-enclosed and improved velocity of medium greatly is from the also corresponding raising of the angle Reynolds (Reynold's) criterion of Calculation of Heat Transfer; Convective heat-transfer coefficient α also can increase substantially, thereby improves heat transfer efficiency greatly.
Heat exchanger provided by the invention; Can also constitute the tube bank group in advance where necessary; Can will pre-install good four (six, eight according to the housing number of passes of product needed in the heat-transfer pipe poling process ...) individual triangular form tube bank group; Carry out integral assembling with doing guiding with tube sheet or other technological equipments again after the corresponding joint cover connection, can shorten assembling greatly and reduce the processing and manufacturing cost.
Compared with prior art, a kind of totally-enclosed runner continuous type provided by the invention does not have the central tube spiral baffle heat exchanger and has following advantage:
1, form the totally-enclosed helical flow path of real meaning:
1), make in the helical duct that the MEDIA FLOW of rotation helps in shell side, washing away particle and sediment at a high speed, significantly reduced dirtiness resistance because dirtiness resistance accounts for the 50%-70% of entire thermal resistance, effectively help to improve heat exchange efficiency;
2), help to form spiral flow at a high speed; Make the shell side cross section velocity gradient field occur; The velocity gradient field not only makes each root heat exchanger tube all be in the heat transferring medium vortex; Cause heat exchanger tube surface boundary layer attenuate thermal resistance to reduce, and consequent centrifugal force has improved the turbulent extent of fluid.
2, help reducing vibration, reduce the possibility of equipment loss, prolong the service life of equipment, practice thrift cost:
On structure; This heat exchanger is fully average to the bearing length of tube bank; Add that the trigonum joint cover connects as a whole structure with omnidistance helical baffles; Solved the tube bundle vibration damage problem fully: because its meeting in housing of spiral baffle heat exchanger housing media flow state decision forms huge bumpy flow, the physical characteristic of general vortex is that the flow velocity of vortex core portion will be much larger than the edge part; A spiral baffle heat exchanger core good effect of heat exchange also is this in the principle of other part; The core flow velocity means to be flutter failure the greatest danger point greatly here; The triangle spoiler by chance forms the reinforcement of this urgent need between the segmental baffle in the efficient closed continuous type spiral baffle heat exchanger, has promptly formed a kind of overstable structure, has further strengthened the antivibration ability of heat exchanger tube; The service life of prolongation equipment; Under the strong load pressure of industry, practice thrift cost, bring convenience to production.
3, make easily, make things convenient for large-scale processing:
In manufacture process, utilizing the triangle junction plate plate that connects central axis is support with 90 ° of intersections; Because joint cover and deflection plate are triangle and fan-shaped planar structure respectively; It is fixing more stable to make that two limits of helical baffles are connected with three limits of joint cover, and is easy to processing and assembly unit.
4, more various spiral baffle heat exchangers are realized maximizing more easily.
5, heat transfer efficiency can improve 30%-180%.
6, the omission of central tube, the corresponding manufacturing cost that reduced.
7, the raising of heat transfer efficiency has enlarged the scope of application, and can bring huge economic benefit for enterprise, has created considerable commercial value.
8, the problems such as leakage current short circuit of the spiral baffle heat exchanger that people thirst for solving have all the time been solved.
[description of drawings]
Fig. 1 is: a kind of totally-enclosed runner continuous type provided by the invention does not have the overall structure sketch map of central tube spiral baffle heat exchanger.
Fig. 2 is: a kind of totally-enclosed runner continuous type provided by the invention does not have central tube helical baffles and connecting plate annexation structural representation.
Among the figure: 1, deflection plate; 2, joint cover; 3, heat-transfer pipe; 4, housing; 5, the tube sheet at housing two ends; 6, import and export pipe.
[specific embodiment]
[embodiment 1]
Shown in accompanying drawing 1-2: present embodiment is that the totally-enclosed runner continuous type of a round trip helical duct does not have the central tube spiral baffle heat exchanger; Form by the tube sheet 5 at deflection plate 1, joint cover 2, heat-transfer pipe 3, housing 4, housing two ends and the import and export pipe 6 that is positioned at housing 4 one ends; Wherein be positioned at the inlet tube that is of top; Be positioned at the outlet that is of below: material gets into from inlet tube, in shell side, after the heat exchange, flows out from outlet.Deflection plate 1 is processed by ordinary carbon steel, and it is fan-shaped that deflection plate 1 is quadrant, in a spiral stroke; Four deflection plates 1 are formed a circular section continuously; Wherein be connected with joint cover 2 between every deflection plate 1 and the adjacent baffle 1, promptly joint cover 2 is approximate isosceles triangle, and its base is connected with the deflection plate 1 of next-door neighbour's joint cover 2 belows; The other both sides of joint cover 2 are connected with the deflection plate 1 of next-door neighbour's joint cover 2 tops, form 70 ° spiral angle between deflection plate 1 and the joint cover 2; The corner dimension on the size of joint cover 2 and the both sides of joint cover 2 except that the base is with the rotary-cut angle of deflection plate 1 by approximate spiral flood dragon, and the length that promptly is stretched with the center of circle is definite with the trigonum that the radius of spin forms.
Every deflection plate 1 is 8 ° of helical angles with the axis of housing 4; Some deflection plates 1 advance to the exit from shell side import department; Promptly form the splicing of approximate helicoid; The relation of the number of deflection plate 1 and heat exchanger shell pass port number N is N*2 on the same circle cross-section, and the number of baffles of single-pass exchanger is generally 4.On helical baffles 1, be provided with and be used for the through hole that heat-transfer pipe 3 passes through; Heat-transfer pipe 3 passes through hole and two tube sheet 5 vertical fixing at heat exchanger two ends on the helical baffles 1; After heat-transfer pipe 3 passes some deflection plates 1 of same quadrant; Connect and compose a tube bank group successively with joint cover 2, the tube bank group of all quadrants forms the sealing screw passage that advances to the exit from shell side import department through deflection plate connection group plate; Under the guiding of the tube head at the two ends of tube sheet 5 and heat exchanger and other technological equipment, be assembled into a spiral baffle heat exchanger with totally enclosed type helical flow path.
In addition, the heat exchanger of present embodiment is not owing to exist central tube, and deflection plate 1 is connected with heat-transfer pipe 3 and fixingly need do not adopt the distance sink tube structure, so greatly not only reduced manufacture difficulty and cost, is the convenience of bringing of industry popularization.In addition, according to a large amount of heat transfer result of the tests, the more common bow type of the heat transfer efficiency of the heat exchanger of present embodiment baffle heat exchanger improves 30%, and energy-saving and emission-reduction economic benefit preferably and social benefit are arranged.
[embodiment 2]
Shown in accompanying drawing 1-2, present embodiment is that the totally-enclosed runner continuous type of one three journey helical duct does not have the central tube spiral baffle heat exchanger, is formed by 6 tube bank assembly.Form by the tube sheet 5 at deflection plate 1, joint cover 2, heat-transfer pipe 3, housing 4, housing two ends and the import and export pipe 6 that is positioned at housing 4 one ends; Wherein be positioned at the inlet tube that is of top; Be positioned at the outlet that is of below: material gets into from inlet tube, in shell side, after the heat exchange, flows out from outlet.Deflection plate 1 is processed by stainless steel, and deflection plate 1 is the sixth circular sector, in a spiral stroke; Six deflection plates 1 are formed a circular section continuously; Wherein be connected with joint cover 1 between every deflection plate 1 and the adjacent baffle 1, promptly joint cover 2 is approximate isosceles triangle, and its base is connected with the deflection plate 1 of next-door neighbour's joint cover 2 belows; The other both sides of joint cover 2 are connected with the deflection plate 1 of next-door neighbour's joint cover 2 tops, form 40 ° spiral angle between deflection plate 1 and the joint cover 2; The corner dimension on the size of joint cover 2 and the both sides of joint cover 2 except that the base is with the rotary-cut angle of deflection plate 1 by approximate spiral flood dragon, and the length that promptly is stretched with the center of circle is definite with the trigonum that the radius of spin forms.
Every deflection plate 1 is 35 ° of helical angles with the axis of housing 4; Some deflection plates 1 advance to the exit from shell side import department; Promptly form the splicing of approximate helicoid; The relation of the number of deflection plate 1 and heat exchanger shell pass port number N is N*2 on the same circle cross-section, and the number of baffles of single-pass exchanger is generally 4.On helical baffles 1, be provided with and be used for the through hole that heat-transfer pipe 3 passes through; Heat-transfer pipe 3 passes through hole and two tube sheet 5 vertical fixing at heat exchanger two ends on the helical baffles 1; After heat-transfer pipe 3 passes some deflection plates 1 of same quadrant; Connect and compose a tube bank group successively with joint cover 2, the tube bank group of all quadrants forms the sealing screw passage that advances to the exit from shell side import department through deflection plate connection group plate; Under the guiding of the tube head at the two ends of tube sheet 5 and heat exchanger and other technological equipment, be assembled into a spiral baffle heat exchanger with totally enclosed type helical flow path.
In addition, the heat exchanger of present embodiment is not owing to exist central tube, and deflection plate 1 is connected with heat-transfer pipe 3 and fixingly need do not adopt the distance sink tube structure, so greatly not only reduced manufacture difficulty and cost, is the convenience of bringing of industry popularization.In addition, according to a large amount of heat transfer result of the tests, the more common bow type of the heat transfer efficiency of the heat exchanger of present embodiment baffle heat exchanger improves 180%, and energy-saving and emission-reduction economic benefit preferably and social benefit are arranged.
[embodiment 3]
Shown in accompanying drawing 1-2: present embodiment is that the totally-enclosed runner continuous type of a round trip helical duct does not have the central tube spiral baffle heat exchanger; Form by the tube sheet 5 at deflection plate 1, joint cover 2, heat-transfer pipe 3, housing 4, housing two ends and the import and export pipe 6 that is positioned at housing one end; Wherein be positioned at the inlet tube that is of top; Be positioned at the outlet that is of below: material gets into from inlet tube, in shell side, after the heat exchange, flows out from outlet.Deflection plate 1 is processed by stainless steel, and deflection plate 1 is the sixth circular sector, in a spiral stroke; Four deflection plates 1 are formed a circular section continuously; Wherein be connected with joint cover 2 between every deflection plate 1 and the adjacent baffle 1, promptly joint cover 2 is approximate isosceles triangle, and its base is connected with the deflection plate 1 of next-door neighbour's joint cover 2 belows; The other both sides of joint cover 2 are connected with the deflection plate 1 of next-door neighbour's joint cover 2 tops, form 70 ° spiral angle between deflection plate 1 and the joint cover 2; The corner dimension on the size of joint cover 2 and the both sides of joint cover 2 except that the base is with the rotary-cut angle of deflection plate 1 by approximate spiral flood dragon, and the length that promptly is stretched with the center of circle is definite with the trigonum that the radius of spin forms.
Every deflection plate 1 is 10 ° of helical angles with the axis of housing 4; Some deflection plates 1 advance to the exit from shell side import department; Promptly form the splicing of approximate helicoid; The relation of the number of deflection plate 1 and heat exchanger shell pass port number N is N*2 on the same circle cross-section, and the number of baffles of single-pass exchanger is generally 4.On helical baffles 1, be provided with and be used for the through hole that heat-transfer pipe 3 passes through; Heat-transfer pipe 3 passes through hole and two tube sheet 5 vertical fixing at heat exchanger two ends on the helical baffles 1; After heat-transfer pipe 3 passes some deflection plates 1 of same quadrant; Connect and compose a tube bank group successively with joint cover 2, the tube bank group of all quadrants forms the sealing screw passage that advances to the exit from shell side import department through deflection plate connection group plate; Under the guiding of the tube head at the two ends of tube sheet 5 and heat exchanger and other technological equipment, be assembled into a spiral baffle heat exchanger with totally enclosed type helical flow path.
In addition, the heat exchanger of present embodiment is not owing to exist central tube, and deflection plate 1 is connected with heat-transfer pipe 3 and fixingly need do not adopt the distance sink tube structure, so greatly not only reduced manufacture difficulty and cost, is the convenience of bringing of industry popularization.In addition, according to a large amount of heat transfer result of the tests, the more common bow type of the heat transfer efficiency of the heat exchanger of present embodiment baffle heat exchanger improves 150%, and energy-saving and emission-reduction economic benefit preferably and social benefit are arranged.
[embodiment 4]
Shown in accompanying drawing 1-2, present embodiment is that the totally-enclosed runner continuous type of one three journey helical duct does not have the central tube spiral baffle heat exchanger, is formed by 8 tube bank assembly.Form by the tube sheet 5 at deflection plate 1, joint cover 2, heat-transfer pipe 3, housing 4, housing two ends and the import and export pipe 6 that is positioned at housing 4 one ends; Wherein be positioned at the inlet tube that is of top; Be positioned at the outlet that is of below: material gets into from inlet tube, in shell side, after the heat exchange, flows out from outlet.Deflection plate 1 is processed by ordinary carbon steel iron, and deflection plate 1 is the sixth circular sector, in a spiral stroke; Six deflection plates 1 are formed a circular section continuously; Wherein be connected with joint cover 2 between every deflection plate 1 and the adjacent baffle 1, promptly joint cover 2 is approximate isosceles triangle, and its base is connected with the deflection plate 1 of next-door neighbour's joint cover 2 belows; The other both sides of joint cover 2 are connected with the deflection plate 1 of next-door neighbour's joint cover 2 tops, form 20 ° spiral angle between deflection plate 1 and the joint cover 2; The corner dimension on the size of joint cover 2 and the both sides of joint cover 2 except that the base is with the rotary-cut angle of deflection plate 1 by approximate spiral flood dragon, and the length that promptly is stretched with the center of circle is definite with the trigonum that the radius of spin forms.
Every deflection plate 1 is 20 ° of helical angles with the axis of housing 4; Some deflection plates 1 advance to the exit from shell side import department; Promptly form the splicing of approximate helicoid; The relation of the number of deflection plate 1 and heat exchanger shell pass port number N is N*2 on the same circle cross-section, and the number of baffles of single-pass exchanger is generally 4.On helical baffles 1, be provided with and be used for the through hole that heat-transfer pipe 3 passes through; Heat-transfer pipe 3 passes through hole and two tube sheet 5 vertical fixing at heat exchanger two ends on the helical baffles 1; After heat-transfer pipe 3 passes some deflection plates 1 of same quadrant; Connect and compose a tube bank group successively with joint cover 2, the tube bank group of all quadrants forms the sealing screw passage that advances to the exit from shell side import department through deflection plate connection group plate; Under the guiding of the tube head at the two ends of tube sheet 5 and heat exchanger and other technological equipment, be assembled into a spiral baffle heat exchanger with totally enclosed type helical flow path.
In addition, the heat exchanger of present embodiment is not owing to exist central tube, and deflection plate 1 is connected with heat-transfer pipe 3 and fixingly need do not adopt the distance sink tube structure, so greatly not only reduced manufacture difficulty and cost, is the convenience of bringing of industry popularization.In addition, according to a large amount of heat transfer result of the tests, the more common bow type of the heat transfer efficiency of the heat exchanger of present embodiment baffle heat exchanger improves 120%, and energy-saving and emission-reduction economic benefit preferably and social benefit are arranged.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although the present invention has been carried out detailed explanation with reference to the foregoing description; Under the those of ordinary skill in field be to be understood that: the technical staff reads after the present specification still and can specific embodiments of the invention to make amendment or be equal to replacement, does not await the reply within the claim protection domain but these modifications or change all break away from application of the present invention.
Claims (10)
1. a totally-enclosed runner continuous type does not have the central tube spiral baffle heat exchanger; The tube sheet (5) and the import and export pipe (6) that comprise deflection plate (1), joint cover (2), heat-transfer pipe (3), housing (4), housing two ends; It is characterized in that said deflection plate (1) is fan-shaped; In a spiral stroke; Deflection plate more than two (1) is formed a circular section continuously, wherein is connected with joint cover (2) between every deflection plate (1) and the adjacent baffle (1), forms greater than zero the spiral angle less than 90 ° between deflection plate (1) and the joint cover (2); In housing (4); Some deflection plates (1) are in a spiral stroke; Form a complete circular section; Promptly become a spiral sets of waveforms, some spiral sets of waveforms connect through joint cover (2): form from shell side import department and advance to the exit, with the sealing screw passage of housing (4) inwall with the common formation of heat-transfer pipe (3) outer wall.
2. heat exchanger according to claim 1; It is characterized in that said joint cover (2) is approximate isosceles triangle; Its base is connected with the deflection plate (1) of next-door neighbour's joint cover (2) down stroke, and the other both sides of joint cover (2) are connected with the deflection plate (1) of next-door neighbour's joint cover (2) up stroke; The corner dimension on the size of joint cover (2) and the both sides of joint cover (2) except that the base is with the rotary-cut angle of deflection plate (1) by approximate spiral flood dragon, and the length that promptly is stretched with the center of circle is definite with the trigonum that the radius of spin forms.
3. heat exchanger according to claim 1 is characterized in that said deflection plate (1) becomes 8 °～35 ° helical angle with housing (4) axis.
4. heat exchanger according to claim 1 is characterized in that said deflection plate (1) is provided with and is used for the through hole of heat-transfer pipe (3) from wherein passing, and heat-transfer pipe (3) passes the through hole and tube sheet (5) vertical fixing that is positioned at the housing two ends on the deflection plate (1).
5. heat exchanger according to claim 1 is characterized in that N*2 in the said heat exchanger/one heat-transfer pipe passes through hole and two tube sheets (5) vertical fixing on the deflection plate (1).
6. heat exchanger according to claim 1, the number that it is characterized in that deflection plate on same circle cross-section (2) are N*2 times that the heat exchanger shell pass helical duct is counted N.
7. heat exchanger according to claim 1; After it is characterized in that said heat-transfer pipe (3) passes the deflection plate (1) of same quadrant; And joint cover (2) connects and composes a tube bank group, the sealing screw passage that the tube bank group of all quadrants advances to the exit from shell side import department through the formation of deflection plate connection group plate successively.
8. heat exchanger according to claim 6, the number that it is characterized in that said tube bank group are N*2 times that the heat exchanger shell pass helical duct is counted N.
9. heat exchanger according to claim 1 is characterized in that said import and export pipe (6) is located at the both sides of a wherein tube sheet (5) at an end or the housing two ends of heat exchanger.
10. heat exchanger according to claim 6 is characterized in that said deflection plate (1) and joint cover (2) adopt metal material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102176895A CN102313467A (en) | 2010-07-06 | 2010-07-06 | Totally-closed flow-channel continuous-type centerless-pipe spiral baffle-plate heat-exchanger |
| PCT/CN2010/001023 WO2012003603A1 (en) | 2010-07-06 | 2010-07-09 | Heat exchanger having fully-closed flow passage and continuous-type spiral baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102176895A CN102313467A (en) | 2010-07-06 | 2010-07-06 | Totally-closed flow-channel continuous-type centerless-pipe spiral baffle-plate heat-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102313467A true CN102313467A (en) | 2012-01-11 |
Family
ID=45426857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102176895A Pending CN102313467A (en) | 2010-07-06 | 2010-07-06 | Totally-closed flow-channel continuous-type centerless-pipe spiral baffle-plate heat-exchanger |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102313467A (en) |
| WO (1) | WO2012003603A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865755A (en) * | 2012-08-03 | 2013-01-09 | 谭新 | Heat exchanger |
| WO2014143435A1 (en) * | 2013-03-14 | 2014-09-18 | Koch Heat Transfer Company, Lp | Tube bundle for shell-and-tube heat exchanger and a method of use |
| CN105209843A (en) * | 2013-03-14 | 2015-12-30 | 科氏传热有限合伙公司 | Tube bundle for shell-and-tube heat exchanger and method of constructing same |
| CN109579573A (en) * | 2018-12-07 | 2019-04-05 | 西安交通大学 | A kind of spiral lattice board shell-and-tube heat exchanger |
| CN110514054A (en) * | 2019-08-01 | 2019-11-29 | 中石化宁波工程有限公司 | Staged helical baffles and application have the heat exchanger of the baffle plate |
| CN113446619A (en) * | 2021-06-24 | 2021-09-28 | 华能秦煤瑞金发电有限责任公司 | Cold air steam heating device |
| CN115752024A (en) * | 2022-11-16 | 2023-03-07 | 宜兴市冰源制冷设备有限公司 | High-energy-efficiency falling film type heat exchanger and use method thereof |
| EP4390294A1 (en) * | 2022-12-21 | 2024-06-26 | Manenti, Giovanni | Vertical vapor generator |
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| EP3851782A1 (en) | 2016-10-07 | 2021-07-21 | Hamilton Sundstrand Corporation | Heat exchangers |
| CN112629292A (en) * | 2020-12-17 | 2021-04-09 | 上海铠韧气体工程股份有限公司 | High-efficiency heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102865755A (en) * | 2012-08-03 | 2013-01-09 | 谭新 | Heat exchanger |
| WO2014143435A1 (en) * | 2013-03-14 | 2014-09-18 | Koch Heat Transfer Company, Lp | Tube bundle for shell-and-tube heat exchanger and a method of use |
| CN105209843A (en) * | 2013-03-14 | 2015-12-30 | 科氏传热有限合伙公司 | Tube bundle for shell-and-tube heat exchanger and method of constructing same |
| CN109579573A (en) * | 2018-12-07 | 2019-04-05 | 西安交通大学 | A kind of spiral lattice board shell-and-tube heat exchanger |
| CN110514054A (en) * | 2019-08-01 | 2019-11-29 | 中石化宁波工程有限公司 | Staged helical baffles and application have the heat exchanger of the baffle plate |
| CN113446619A (en) * | 2021-06-24 | 2021-09-28 | 华能秦煤瑞金发电有限责任公司 | Cold air steam heating device |
| CN115752024A (en) * | 2022-11-16 | 2023-03-07 | 宜兴市冰源制冷设备有限公司 | High-energy-efficiency falling film type heat exchanger and use method thereof |
| CN115752024B (en) * | 2022-11-16 | 2024-02-06 | 宜兴市冰源制冷设备有限公司 | High-energy-efficiency falling film type heat exchanger and use method thereof |
| EP4390294A1 (en) * | 2022-12-21 | 2024-06-26 | Manenti, Giovanni | Vertical vapor generator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012003603A1 (en) | 2012-01-12 |
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Application publication date: 20120111 |