CN212567012U - Anti-deformation U-shaped pipe heat exchanger for heat exchange system - Google Patents

Abstract

The application relates to an anti-deformation U-shaped tube heat exchanger for a heat exchange system, which belongs to the technical field of heat exchangers and comprises a tube body and a shell body, wherein the shell body is hermetically communicated with one end of the tube body, a tube plate is fixed at the joint of the shell body and the tube body, a plurality of U-shaped tubes are fixed on the tube plate, the openings of the U-shaped tubes are all positioned in the tube body, a partition plate is fixed in the tube body, the side wall of the tube body is hermetically communicated with a cold inlet tube and a cold outlet tube, the side wall of the shell body is hermetically communicated with a hot inlet tube and a hot outlet tube, a heat insulation layer is fixedly laid on the side wall of the tube plate close to the shell body, the circumferential side wall of the heat insulation layer is abutted against the inner wall of the shell body, a cold insulation layer is fixedly laid on the side wall of the tube plate close to the tube body, elastic sealing rings are arranged between the U, so as to ensure the normal use effect of the U-shaped tube heat exchanger.

Description

Anti-deformation U-shaped pipe heat exchanger for heat exchange system

Technical Field

The application relates to the technical field of heat exchangers, in particular to an anti-deformation U-shaped pipe heat exchanger for a heat exchange system.

Background

The U-shaped tube type heat exchanger is one of shell-and-tube type heat exchangers, and consists of tube plates, a shell, a tube bundle and other parts, wherein the heat exchange area of the U-shaped tube type heat exchanger is the largest under the condition of the same diameter; the structure is simple and compact, the sealing performance is high, the maintenance and the cleaning are convenient, the metal consumption is minimum under high temperature and high pressure, and the manufacturing cost is minimum; the U-shaped tube heat exchanger has only one tube plate, has good thermal compensation performance and stronger bearing capacity, and is suitable for operation under high-temperature and high-pressure working conditions.

The existing Chinese patent with reference to publication number CN201803619U discloses a U-shaped tube heat exchanger, which includes a plurality of U-shaped tubes, wherein the ends of the U-shaped tubes are welded and sealed on a tube plate, a partition plate is welded on the tube plate, and a cover is arranged on the tube plate, a heat exchanger shell is arranged outside the U-shaped tubes, a material outlet and a material inlet are arranged on the heat exchanger shell, and heat exchange materials can enter and fill the heat exchanger shell through the material inlet to exchange heat with media in the U-shaped tubes.

The above prior art solutions have the following drawbacks: because the both sides of tube sheet receive the direct contact of cold water and hot-fluid respectively for thereby the tube sheet carries out expend with heat and contract with cold and lead to out of shape distortion, and the fracture can appear in the junction of U-shaped pipe and tube sheet simultaneously, has reduced U-shaped pipe heat exchanger's security, and then has influenced U-shaped pipe heat exchanger's normal use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a shape U-shaped pipe heat exchanger of preapring for an unfavorable turn of events for heat exchange system reaches the security that improves U-shaped pipe heat exchanger to guarantee the effect of U-shaped pipe heat exchanger normal use.

The above utility model of this application aim at can realize through following technical scheme:

an anti-deformation U-shaped pipe heat exchanger for a heat exchange system comprises a pipe body and a shell body which is hermetically communicated with one end of the pipe body, wherein a pipe plate is fixed at the joint of the shell body and the pipe body, a plurality of U-shaped pipes are fixed on the pipe plate, the openings of the U-shaped pipes are all positioned in the pipe body, a partition plate is fixed in the pipe body, one end opening of each U-shaped pipe is positioned above the partition plate, the other end of each U-shaped pipe is positioned below the partition plate, the pipe body and the shell body form a closed inner space, a cold inlet pipe and a cold outlet pipe are hermetically communicated with the side wall of the pipe body, a hot inlet pipe and a hot outlet pipe are hermetically communicated with the side wall of the shell body, a heat insulation layer is fixedly laid on the side wall of the pipe plate close to the shell body, a cold insulation layer is fixedly laid on the side wall of the pipe, the elastic sealing ring seals a gap between the U-shaped pipe and the pipe plate.

By adopting the technical scheme, as the hot fluid introduced into the shell has higher temperature, the arrangement of the heat insulation layer can effectively prevent the temperature of the hot fluid from being transferred to the tube plate, the temperature of the cold water introduced into the tube body is lower, the arrangement of the cold insulation layer can effectively prevent the temperature of the cold water from being transferred to the tube plate, thereby effectively preventing the tube plate from being transferred by high temperature and low temperature at the same time to generate thermal expansion and cold contraction to cause deformation, further ensuring the stable connection between the U-shaped pipe and the pipe plate, simultaneously keeping the elastic sealing ring in a compression state between the U-shaped pipe and the pipe plate all the time, if the pipe plate or the connection part of the U-shaped pipe generates a thread deformation, the elastic sealing ring can also block the gap generated by the elastic sealing ring, and simultaneously effectively preventing hot fluid and cold water from leaking out from the gap between the U-shaped pipe and the pipe plate, and then improve the security of U-shaped pipe heat exchanger greatly to guarantee U-shaped pipe heat exchanger normal use.

The application is further configured to: the lateral wall of U-shaped pipe and tube sheet junction has all seted up the annular draw-in groove of a plurality of rings, and the elastic seal circle inner wall sets firmly the annular arch of a plurality of rings, and the arch inserts in the draw-in groove.

Through adopting above-mentioned technical scheme, draw-in groove and bellied setting make the area of contact of elastic seal circle and U-shaped pipe increase, and then make the sealed effect between U-shaped pipe and the elastic seal circle better, if have a silk cold water or hot-fluid to enter into the gap between U-shaped pipe and the elastic seal circle simultaneously, need continuous through U-shaped pipe outer wall and draw-in groove for the route greatly increased that spills of cold water and hot-fluid, further improvement elastic seal circle's leakproofness.

The application is further configured to: the equal fixedly connected with picture peg of the relative lateral wall of tube sheet, the slot has all been seted up with the relative terminal surface of casing to the body, and the picture peg inserts in the slot, and the equal threaded connection of body and casing outer wall has a plurality of bolts, and the bolt is twisted from the outside of casing and body respectively to run through the picture peg and support tightly in the slot inner wall.

Through adopting above-mentioned technical scheme, unscrew the bolt and can extract the picture peg from the slot for the maintenance and the change of the inner structure of tube sheet, insulating layer, cold insulation layer, elastic seal circle and body, casing are more convenient, and then have guaranteed the normal operating of U-shaped pipe heat exchanger.

The application is further configured to: the vertical sections of the inserting plate and the inserting groove are both circular rings.

By adopting the technical scheme, the plug board and the slot greatly increase the flow paths for leaking cold water and hot fluid, thereby effectively preventing the cold water or the hot fluid from leaking from the joints of the tube plate, the tube body and the shell, and further ensuring the normal operation of the U-shaped tube heat exchanger.

The application is further configured to: the inner wall of the inserting plate is embedded with a circular water absorption strip.

Through adopting above-mentioned technical scheme, the setting up of the strip that absorbs water makes if there is a silk cold water or hot-fluid to get into in the slot, can be absorbed by the strip that absorbs water, and further the cold water or hot-fluid that have effectively prevented to spill from the junction of tube sheet with body and casing, and then has guaranteed U-shaped pipe heat exchanger's normal operating.

The application is further configured to: the end face of the inserting plate far away from the tube plate is fixedly connected with a first magnet, the bottom wall of the inserting groove is fixedly connected with a second magnet, after the inserting plate is inserted into the inserting groove, the first magnet and the second magnet are tightly attracted with each other, and the end faces, opposite to the tube body and the shell, are respectively abutted against the side walls, opposite to the tube plate, of the tube plate.

Through adopting above-mentioned technical scheme, when carrying out the installation of U-shaped pipe heat exchanger, insert the slot earlier with the picture peg, when first magnet and second magnet are inhaled tightly, the tube sheet just in time supports tightly with body or casing, carries out the wrong income of bolt again, need not the staff and supports tube sheet and casing or body hard and make it support tightly, has improved the installation and the maintenance efficiency of U-shaped pipe heat exchanger.

The application is further configured to: the inner wall of the shell is fixed with a plurality of guide plates, the guide plates are penetrated by the U-shaped pipes, the adjacent guide plates are distributed at intervals from top to bottom, and the inner space of the shell is divided into a snake shape by the guide plates.

Through adopting above-mentioned technical scheme, the guide plate is cut apart into the snake shape with casing inner space for the hot-fluid that needs the cooling that gets into from the heat income pipe is at the interior route greatly increased of casing flow, makes the intraductal cold water of U-shaped more abundant cool down the hot-fluid, has improved U-shaped heat exchanger's heat exchange efficiency.

The application is further configured to: the heat insulation layer is formed by laminating an aluminum foil veneer, a polyethylene film, a warp-weft knitted fabric and a metal coating through hot melt adhesive.

By adopting the technical scheme, the material that aluminium foil wainscot, polyethylene film, longitude and latitude knitting and metal film formed through the hot melt adhesive lamination is aluminium foil heat insulation coiled material for the insulating layer has thermal-insulated heat retaining effect, still has waterproof, dampproofing and vapour proof's function simultaneously, has effectively prevented that the hot-fluid in the casing from making the tube sheet produce the heat expansion, and then has guaranteed U-shaped pipe heat exchanger's normal use.

The application is further configured to: the cold insulation layer is made of extruded polystyrene foam plastic for heat insulation.

By adopting the technical scheme, the extruded polystyrene foam plastic for heat insulation is called as XPS extruded sheet for short, so that the cold insulation layer has the characteristics of high heat resistance, low linearity and low expansion ratio, the closed porosity of the structure reaches more than 99%, a vacuum layer is formed, the air flow heat dissipation is avoided, the heat insulation performance is ensured to be lasting and stable, the cold shrinkage caused by the influence of cold water on the tube plate is effectively prevented, and the normal use of the U-shaped tube heat exchanger is further ensured.

The application is further configured to: the elastic sealing ring is made of rubber materials and synthesized by isobutene and a small amount of isoprene.

Through adopting above-mentioned technical scheme, the rubber that isobutene and a small amount of isoprene are synthetic is butyl rubber for elastic sealing ring still has heat-resisting effect when can have elasticity, has prevented effectively that the hot-fluid that is located the casing from causing negative effects to elastic sealing ring, and then has guaranteed U-shaped pipe heat exchanger's normal use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the heat insulation layer and the cold insulation layer effectively prevent the tube plate from being simultaneously transferred by high temperature and low temperature to generate thermal expansion and cold contraction to cause deformation, so that the stable connection between the U-shaped tube and the tube plate is ensured, if the tube plate or the joint of the U-shaped tube generates one-thread deformation, the elastic sealing ring can also plug the generated gap, and simultaneously hot fluid and cold water are effectively prevented from leaking from the gap between the U-shaped tube and the tube plate, so that the safety of the U-shaped tube heat exchanger is greatly improved, and the normal use of the U-shaped tube heat exchanger is ensured;

2. the inserting plate and the inserting groove greatly increase the flow paths for leaking cold water and hot fluid, so that the cold water or the hot fluid is effectively prevented from leaking from the connecting part of the tube plate, the tube body and the shell, and the normal operation of the U-shaped tube heat exchanger is further ensured;

3. the guide plate cuts apart into the snake shape with casing inner space for the hot-fluid that needs the cooling that gets into from the heat income pipe is at the interior route greatly increased of casing flow, makes the intraductal cold water of U-shaped more abundant cool down the hot-fluid, has improved U-shaped heat exchanger's heat exchange efficiency.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a sectional view of the present embodiment;

FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;

fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

In the figure, 1, a tube body; 11. cold feeding the pipe; 12. a cold outlet pipe; 2. a housing; 21. heating the pipe; 22. a hot outlet pipe; 23. a baffle; 3. a tube sheet; 31. a thermal insulation layer; 32. a cold insulation layer; 4. a U-shaped tube; 41. a card slot; 5. a partition plate; 6. an elastic sealing ring; 61. a protrusion; 7. inserting plates; 71. a first magnet; 72. a water absorbent strip; 8. a slot; 81. a second magnet; 9. and (4) bolts.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, for the anti-deformation U-shaped tube heat exchanger for heat exchange system disclosed in the present application, the heat exchanger comprises a horizontally arranged tube body 1 and a shell 2 hermetically communicated with one end of the tube body 1, a vertically arranged tube sheet 3 is fixed between the shell 2 and the tube body 1, the tube sheet 3 is located at the joint of the shell 2 and the tube body 1, a plurality of U-shaped tubes 4 are fixed on the tube sheet 3, the main bodies of the U-shaped tubes 4 are located in the shell 2, two openings of the U-shaped tubes 4 are both located at one side of the tube body 3 located in the tube body 1, a horizontally arranged partition plate 5 is fixed at the middle part in the tube body 1, one end opening of the U-shaped tube 4 is located above the partition plate 5, the other end is located below the partition plate 5, the top of the tube body 1 is hermetically communicated with a cold inlet tube 11, the bottom of the tube body 1 is hermetically communicated with a cold, the inner wall of the shell 2 is fixedly connected with a plurality of guide plates 23, the guide plates 23 are penetrated through by the U-shaped pipe 4, the vertical sectional area of each guide plate 23 is smaller than that of the shell 2, the adjacent guide plates 23 are distributed in a vertically staggered manner, and the inner space of the shell 2 is divided into a snake shape by the guide plates 23; pour into cold water in toward body 1 through cold income pipe 11, the cold water that is located division board 5 top gets into in the U-shaped pipe 4, flow in the U-shaped pipe 4 after it gets back to in body 1 and be located division board 5 below from its export, flow from cold exit tube 12 again, pour into the hot-fluid that needs the cooling in the pipe 21 simultaneously into, the hot-fluid is behind the route of snake shape in casing 2, make the hot-fluid can be more abundant cool down by the inside cold water of U-shaped pipe 4, flow out from hot exit tube 22 at last, can accomplish the heat transfer.

As shown in fig. 2 and 3, the opposite side walls of the tube plate 3 are respectively and fixedly laid with a heat insulation layer 31 and a cold insulation layer 32 which are vertically arranged, the circumferential side wall of the heat insulation layer 31 is abutted against the inner wall of the shell 2, the circumferential side wall of the cold insulation layer 32 is abutted against the inner wall of the tube body 1, the heat insulation layer 31 is formed by laminating an aluminum foil facing, a polyethylene film, a warp and weft knitting fabric and a metal coating through hot melt adhesive, the cold insulation layer 32 is extruded polystyrene foam plastic for heat insulation, the heat insulation layer 31, the tube plate 3 and the cold insulation layer 32 are penetrated through by the U-shaped, the openings of the U-shaped tubes 4 are all positioned in the tube body 1, elastic sealing rings 6 are arranged between the U-shaped tubes 4 and the tube plates 3, the outer walls of the inner walls of the elastic sealing rings 6 are respectively fixed with the U-shaped tubes 4 and the tube body 1, the elastic sealing rings 6 are always in a compressed state, gaps between the U-shaped tubes 4 and the tube plates 3 are sealed by the elastic sealing rings 6, and the elastic sealing rings 6 are made of rubber materials synthesized by isobutene and a small amount of isoprene; insulating layer 31's setting can effectively prevent that the high temperature transmission of hot-fluid from giving tube sheet 3, cold insulation layer 32's setting can effectively prevent cold water low temperature transmission from giving tube sheet 3, thereby effectively prevent that tube sheet 3 from receiving high temperature and microthermal influence simultaneously and causing expend with heat and contract with cold to warp, thereby elastic seal ring 6 is compression state all the time, if tube sheet 3 or U-shaped pipe 4's junction produces a silk deformation, elastic seal ring 6 also can carry out the shutoff with the gap of its production, hot-fluid and cold water have effectively been prevented and have spilt from the gap between U-shaped pipe 4 and the tube sheet 3, and then improve U-shaped pipe heat exchanger's security greatly, in order to guarantee U-shaped.

As shown in fig. 3, a plurality of annular protrusions 61 are fixed inside the elastic sealing ring 6, a plurality of annular slots 8 are formed in the outer side wall of the joint of the U-shaped tube 4 and the tube plate 3, and the protrusions 61 are inserted into the slots 8; because elastic seal 6 is in compression state all the time for protruding 61 outer wall is tight with the top of slot 8 inner wall, if have a silk cold water or hot-fluid to enter into the gap between U-shaped pipe 4 and elastic seal 6, need pass through the gap between U-shaped pipe 4 and elastic seal 6 and the gap between protruding 61 and the slot 8, make the route greatly increased that leaks of cold water and hot-fluid, and then improved elastic seal 6's leakproofness greatly.

As shown in fig. 2 and 4, the opposite side walls of the tube plate 3 are fixedly connected with a circular insertion plate 7, the opposite end surfaces of the tube body 1 and the shell 2 are respectively provided with a circular insertion slot 8, the insertion slot 8 is used for inserting the insertion plate 7, one end of the insertion plate 7 far away from the tube plate 3 is fixedly connected with a circular first magnet 71, the deepest part of the inner bottom wall of the insertion slot 8 is fixedly connected with a circular second magnet 81, after the insertion plate 7 is inserted into the insertion slot 8, the first magnet 71 and the second magnet 81 are tightly attracted with each other, at the moment, the tube plate 3 is tightly abutted against the end surfaces of the shell 2 and the tube body 1, the inner wall of the insertion plate 7 is embedded with a circular water absorbing strip 72, in the embodiment, the water absorbing strip 72 is a cotton strip, after the insertion plate 7 is inserted into the insertion slot 8, the outer wall of the water absorbing strip 72 is tightly abutted against the inner wall of the, until the inner wall of the slot 8 is tightly propped; when carrying out the installation of U-shaped pipe heat exchanger, earlier inlay water absorption strip 72 on picture peg 7, insert picture peg 7 in the slot 8 again, it is tight to inhale until first magnet 71 and second magnet 81, run through picture peg 7 behind the outer wall of casing 2 and body 1 respectively with bolt 9 again and screw up in slot 8, greatly increased the flow path that cold water and hot-fluid spilt simultaneously, water absorption strip 72 can absorb a silk cold water or hot-fluid that gets into in the slot 8 simultaneously, effectively prevented cold water or hot-fluid from tube sheet 3 and body 1 and casing 2's junction to spill, and then guaranteed the normal operating of U-shaped pipe heat exchanger.

The implementation principle of the embodiment is as follows: when the U-shaped tube heat exchanger is installed, the water absorbing strips 72 are embedded on the inserting plates 7, the two inserting plates 7 are inserted into the inserting grooves 8 respectively, the first magnet 71 and the second magnet 81 are tightly absorbed, the bolts 9 penetrate through the inserting plates 7 and are screwed in the inserting grooves 8, cold water enters the U-shaped tube 4 through the cold inlet tube 11, hot fluid enters the shell 2 through the hot inlet tube 21, heat exchange is fully carried out with the cold water in the U-shaped tube 4 through a snake-shaped path, the temperature of the hot fluid and the temperature of the cold water are isolated outside by the heat insulating layer 31 and the cold insulating layer 32 respectively, the tube plate 3 is effectively prevented from expanding with heat and contracting with cold, the elastic sealing ring 6 is always in a compression state, if the connection part of the tube plate 3 or the U-shaped tube 4 generates a thread deformation, the elastic sealing ring 6 can also block gaps generated by the elastic sealing ring, and the hot fluid and the cold water are effectively prevented, meanwhile, the flow paths of the cold water and the hot fluid which leak out are greatly increased by the inserting plate 7 and the inserting groove 8, and the water absorption strip 72 can absorb a thread of cold water or hot fluid which enters the inserting groove 8, so that the cold water or the hot fluid is effectively prevented from leaking out from the connecting part of the tube plate 3 and the tube body 1 and the shell 2, and the normal operation of the U-shaped tube heat exchanger is further ensured.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a shape U-shaped pipe heat exchanger of preapring for an unfavorable turn of events for heat exchange system, including body (1) and sealed intercommunication in casing (2) of body (1) one end, casing (2) are fixed with tube sheet (3) with body (1) junction, be fixed with a plurality of U-shaped pipes (4) on tube sheet (3), the opening of U-shaped pipe (4) all is located body (1), body (1) internal fixation has division board (5), the one end opening of U-shaped pipe (4) is located division board (5) top, the other end is located division board (5) below, body (1) and casing (2) form confined inner space, body (1) lateral wall seal intercommunication has cold income pipe (11) and cold exit tube (12), casing (2) lateral wall seal intercommunication has hot income pipe (21) and hot exit tube (22), its characterized in that: the heat insulation layer (31) is fixedly laid on the side wall, close to the shell (2), of the tube plate (3), the circumferential side wall of the heat insulation layer (31) is tightly abutted to the inner wall of the shell (2), the cold insulation layer (32) is fixedly laid on the side wall, close to the tube body (1), of the tube plate (3), the circumferential side wall of the cold insulation layer (32) is tightly abutted to the inner wall of the tube body (1), elastic sealing rings (6) are arranged between the U-shaped tube (4) and the tube plate (3), the elastic sealing rings (6) are in a compression state, and gaps between the U-shaped tube (4) and the tube plate (3) are sealed by the elastic.

2. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 1, wherein: a plurality of circular ring-shaped clamping grooves (41) are formed in the outer side wall of the joint of the U-shaped pipe (4) and the pipe plate (3), a plurality of circular ring-shaped protrusions (61) are fixedly arranged on the inner wall of the elastic sealing ring (6), and the protrusions (61) are inserted into the clamping grooves (41).

3. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 1, wherein: the equal fixedly connected with picture peg (7) of lateral wall that tube sheet (3) is relative, slot (8) have all been seted up with casing (2) relative terminal surface in body (1), and picture peg (7) insert slot (8) in, body (1) and the equal threaded connection of casing (2) outer wall have a plurality of bolts (9), and bolt (9) are twisted from the outside of casing (2) and body (1) respectively to run through picture peg (7) and support tightly in slot (8) inner wall.

4. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 3, wherein: the vertical sections of the inserting plate (7) and the inserting groove (8) are both circular.

5. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 4, wherein: the inner wall of the inserting plate (7) is embedded with a circular water absorbing strip (72).

6. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 4, wherein: the end face fixedly connected with first magnet (71) that tube sheet (3) were kept away from in picture peg (7), bottom wall fixedly connected with second magnet (81) in slot (8), picture peg (7) insert slot (8) back, and first magnet (71) and second magnet (81) are inhaled tightly each other, and the relative terminal surface of body (1) and casing (2) supports tightly with the relative lateral wall of tube sheet (3) respectively.

7. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 1, wherein: a plurality of guide plates (23) are fixed on the inner wall of the shell (2), the guide plates (23) are penetrated through by the U-shaped pipes (4), the adjacent guide plates (23) are distributed at intervals from top to bottom, and the inner space of the shell (2) is divided into a snake shape by the guide plates (23).

8. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 1, wherein: the heat insulation layer (31) is formed by laminating an aluminum foil veneer, a polyethylene film, a warp-weft knitted fabric and a metal coating through hot melt adhesive.

9. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 1, wherein: the cold insulation layer (32) is an extruded polystyrene foam cold insulation layer (32) for heat insulation.

10. A deformation-resistant U-tube heat exchanger for a heat exchange system according to claim 1, wherein: the elastic sealing ring (6) is made of rubber materials synthesized by isobutene and a small amount of isoprene.

Images