CN212747429U

CN212747429U - Plum-blossom-shaped pipe distribution structure of heat exchanger pipe bundle

Info

Publication number: CN212747429U
Application number: CN202021440755.0U
Authority: CN
Inventors: 姚良理; 房有军; 俞新佳; 杨建刚
Original assignee: Longjie Machinery Equipment Taicang Co Ltd
Current assignee: Longjie Machinery Equipment Taicang Co Ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-19
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a heat exchanger tube bank plum blossom stringing structure, including the heat exchanger main part, heat exchanger main part end fixedly connected with pipe case, both ends difference fixed mounting has intake pipe and outlet duct about the pipe case, the intake pipe lower extreme extends to inside the pipe case, and fixedly connected with steam inlet end pipe, pipe case end fixed mounting has the tube head installation department, the inside separation barrel that is equipped with fixed mounting on the tube head installation department of heat exchanger main part. The utility model relates to a heat exchanger stringing structure, in particular to heat exchanger tube bank plum blossom stringing structure belongs to heat exchanger technical field. The utility model discloses in, steam gets into the heat exchange tube through the inside steam inlet end pipe of pipe case, and steam advances from the heat exchange tube at middle part, and steam after the heat transfer goes out from outside heat exchange tube, and the steam after the heat transfer gets into pipe case, and the temperature of protection pipe case can not be too high, slows down the ageing that pipe case led to the fact long-time use, has improved the holistic life of heat exchanger.

Description

Plum-blossom-shaped pipe distribution structure of heat exchanger pipe bundle

Technical Field

The utility model relates to a heat exchanger stringing structure, in particular to heat exchanger tube bank plum blossom stringing structure belongs to heat exchanger technical field.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied.

The existing heat exchanger is provided with the air inlet and the air outlet in the main body, hot air enters the heat exchange tube in the main body from the air inlet, the end of the heat exchange tube is provided with the tube box, the hot air can directly enter the tube box and then enters the heat exchange tube, the heat of the hot air can reach hundreds of degrees centigrade, the tube box is easy to damage, the temperature of the outside of the tube box is high, the service life is short, and the heat is easy to age.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat exchanger tube bank plum blossom stringing structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the plum blossom pipe distribution structure of the heat exchanger pipe bundle comprises a heat exchanger main body, wherein a pipe box is fixedly connected with the end head of the heat exchanger main body, the upper end and the lower end of the tube box are respectively and fixedly provided with an air inlet pipe and an air outlet pipe, the lower end of the air inlet pipe extends to the interior of the tube box, and is fixedly connected with a hot air inlet end pipe, the end head of the pipe box is fixedly provided with a pipe head installation part, a separation barrel body fixedly arranged on the pipe head installation part is arranged in the heat exchanger main body, the inner part and the outer part of the separation cylinder body are respectively provided with a plurality of groups of inner heat exchange tubes and outer heat exchange tubes, the number of the outer heat exchange tubes is the same as that of the inner heat exchange tubes, interior heat exchange tube end runs through tube head installation department and hot gas inlet end pipe looks through connection, outer heat exchange tube end runs through tube head installation department and the inside through connection of pipe case, every group outer heat exchange tube and the one end that interior heat exchange tube deviates from pipe case are separating barrel end department and pass through return bend through connection.

As a preferred technical scheme of the utility model, the inside fixed multiunit tube sheet that is equipped with of heat exchanger main part, set up the tube hole of multiunit and outer heat exchange tube and interior heat exchange tube looks adaptation on the tube sheet terminal surface, outer heat exchange tube is pegged graft at the tube hole with interior heat exchange tube, and is effectual to the fixed of heat exchange tube, prevents that it from appearing rocking, improves stability.

As a preferred technical scheme of the utility model, interior heat exchange tube end passes through the heat exchange tube end mounting panel to be fixed in steam inlet end pipe end department, fixes its end.

As an optimized technical scheme of the utility model, the multiunit outer heat exchange tube and interior heat exchange tube both ends are pegged graft respectively and are had end plate, two fixedly connected with bracing piece between the end plate further improves the stability to the heat exchange tube.

As a preferred technical scheme of the utility model, interior heat exchange tube does not contact with the partition barrel inner wall, outer heat exchange tube all does not contact with partition barrel outer wall and heat exchanger main part inner wall, the return bend all meets with partition barrel and heat exchanger main part inner wall, improves heat transfer effect.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, steam gets into the heat exchange tube through the inside steam inlet end pipe of pipe case, and steam advances from the heat exchange tube at middle part, and steam after the heat transfer goes out from outside heat exchange tube, and the steam after the heat transfer gets into pipe case, and the temperature of protection pipe case can not be too high, slows down the ageing that pipe case led to the fact long-time use, has improved the holistic life of heat exchanger.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is the structure schematic diagram of the outer heat exchange tube and the inner heat exchange tube in the utility model.

In the figure: 1. an air inlet pipe; 2. a tube head mounting part; 3. a support bar; 4. a tube sheet; 5. a heat exchanger main body; 6. an end plate; 7. bending the pipe; 8. an external heat exchange pipe; 9. an inner heat exchange tube; 10. a partition cylinder; 11. an end mounting plate of the heat exchange tube; 12. an air outlet pipe; 13. a pipe box; 14. a hot gas inlet end pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides a quincuncial tube arrangement structure for a heat exchanger tube bundle, which comprises a heat exchanger main body 5, wherein the heat exchanger main body 5 is provided with an inlet and an outlet for fluid, the end of the heat exchanger main body 5 is fixedly connected with a tube box 13, the upper and lower ends of the tube box 13 are respectively and fixedly provided with an inlet tube 1 and an outlet tube 12, the lower end of the inlet tube 1 extends into the tube box 13 and is fixedly connected with a hot gas inlet end tube 14, the end of the tube box 13 is fixedly provided with a tube head mounting part 2, the inside of the heat exchanger main body 5 is provided with a separating cylinder 10 fixedly mounted on the tube head mounting part 2, the inside and the outside of the separating cylinder 10 are respectively provided with a plurality of groups of inner heat exchange tubes 9 and outer heat exchange tubes 8, the number of the outer heat exchange tubes 8 is the same, one end of each group of the outer heat exchange tubes 8 and the inner heat exchange tubes 9, which are far away from the tube box 13, is communicated and connected with the end of the separation cylinder 10 through a bent tube 7.

Wherein, the inside fixed multiunit tube sheet 4 that is equipped with of heat exchanger main part 5, set up the multiunit on the tube sheet 4 terminal surface and the tube hole of outer heat exchange tube 8 and interior heat exchange tube 9 looks adaptation, outer heat exchange tube 8 and interior heat exchange tube 9 are pegged graft in the tube hole, tube sheet 4 is equipped with the multiunit, be vertical distribution with outer heat exchange tube 8 and interior heat exchange tube 9, tube sheet 4 is circular, tube sheet 4 divide into interior planking, the inner panel is fixed as for separating interior heat exchange tube 9 in the barrel 10, the planking is as for separating the barrel 10 outside, encircle around separating barrel 10, the heat exchange tube 8 is fixed outward, every group tube sheet 4 is the equidista.

The end of the inner heat exchange tube 9 is fixed at the end of the hot gas inlet end tube 14 through the heat exchange tube end mounting plate 11, and the heat exchange tube end mounting plate 11 separates the interior of the hot gas inlet end tube 14 from the interior of the tube box 13, so that air leakage is avoided.

Wherein, the end plates 6 are respectively inserted at the two ends of the multi-group outer heat exchange tube 8 and the inner heat exchange tube 9, and the support rod 3 is fixedly connected between the two end plates 6 to strengthen the fixing effect.

Wherein, the inner heat exchange tube 9 is not contacted with the inner wall of the separation cylinder 10, the outer heat exchange tubes 8 are not contacted with the outer wall of the separation cylinder 10 and the inner wall of the heat exchanger main body 5, the bent tubes 7 are contacted with the inner wall of the separation cylinder 10 and the inner wall of the heat exchanger main body 5, and the heat exchange tubes can not directly cause the temperature rise of the wall surface of the heat exchanger main body 5.

The working principle of the present invention will be specifically explained below: when the heat exchanger is used, hot gas enters the hot gas inlet end pipe 14 from the gas inlet pipe 1, enters the inner heat exchange pipe 9 from the hot gas inlet end pipe 14, fluid in the heat exchanger main body 5 is filled in the separation barrel body 10, the inner heat exchange pipe 9 conducts preliminary heat exchange on fluid in the separation barrel body 10, the hot gas enters the outer heat exchange pipe 8 through the bent pipe 7, secondary heat exchange is conducted on the fluid outside the separation barrel body 10, gas with the temperature reduced enters the pipe box 13 through the outer heat exchange pipe 8 and is discharged through the gas outlet pipe 12, and the fluid after heat exchange in the heat exchanger main body 5 is discharged through the outlet.

To sum up, the utility model discloses heat exchanger tube bank plum blossom stringing structure, the steam that gets into from intake pipe 1 gets into the heat exchange tube through the inside steam inlet end pipe 14 of pipe case 13, and steam advances from the heat exchange tube at middle part, and steam after the heat transfer goes out from outside heat exchange tube, and steam after the heat transfer gets into pipe case 13, and the temperature of protection pipe case 13 can not be too high, slows down the ageing that pipe case 13 caused long-time use, has improved the holistic life of heat exchanger.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Heat exchanger tube bank plum blossom cloth tubular construction, including heat exchanger main part (5), its characterized in that, heat exchanger main part (5) end fixedly connected with pipe case (13), both ends difference fixed mounting has intake pipe (1) and outlet duct (12) about pipe case (13), intake pipe (1) lower extreme extends to inside pipe case (13), and fixedly connected with steam inlet end pipe (14), pipe case (13) end fixed mounting has tube head installation department (2), inside separation barrel (10) of being equipped with fixed mounting on tube head installation department (2) of heat exchanger main part (5), it is equipped with multiunit inner heat exchange tube (9) and outer heat exchange tube (8) respectively to separate inside and outside barrel (10), outer heat exchange tube (8) are the same with inner heat exchange tube (9) quantity, inner heat exchange tube (9) end runs through tube head installation department (2) and steam inlet end pipe (14) run through and is connected, outer heat exchange tube (8) end runs through tube head installation department (2) and the inside through connection of pipe case (13), every group outer heat exchange tube (8) and interior heat exchange tube (9) deviate from the one end of pipe case (13) and pass through return bend (7) through connection separating barrel (10) end department.

2. The heat exchanger tube bundle quincunx tube distribution structure of claim 1, wherein: the heat exchanger is characterized in that a plurality of groups of tube plates (4) are fixedly arranged inside the heat exchanger main body (5), a plurality of groups of tube holes matched with the outer heat exchange tubes (8) and the inner heat exchange tubes (9) are formed in the end faces of the tube plates (4), and the outer heat exchange tubes (8) and the inner heat exchange tubes (9) are inserted into the tube holes.

3. The heat exchanger tube bundle quincunx tube distribution structure of claim 1, wherein: the end of the inner heat exchange tube (9) is fixed at the end of the hot gas inlet end tube (14) through a heat exchange tube end mounting plate (11).

4. The heat exchanger tube bundle quincunx tube distribution structure of claim 1, wherein: end plates (6) are respectively inserted at two ends of the outer heat exchange tubes (8) and the inner heat exchange tubes (9), and a support rod (3) is fixedly connected between the two end plates (6).

5. The heat exchanger tube bundle quincunx tube distribution structure of claim 1, wherein: interior heat exchange tube (9) do not contact with partition barrel (10) inner wall, outer heat exchange tube (8) all do not contact with partition barrel (10) outer wall and heat exchanger main part (5) inner wall, return bend (7) all contact with partition barrel (10) and heat exchanger main part (5) inner wall.