CN214701864U

CN214701864U - Fin heat exchanger

Info

Publication number: CN214701864U
Application number: CN202120234240.3U
Authority: CN
Inventors: 张开东; 韩宝亿; 张凤英; 周晓林
Original assignee: Wuxi Baoyi Energy Equipment Co ltd
Current assignee: Wuxi Baoyi Energy Equipment Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-12
Anticipated expiration: 2031-01-26

Abstract

The application relates to a fin heat exchanger, including the heat exchanger body, the heat exchanger body includes the pipe assembly, connects the tube sheet at pipe assembly both ends, the outstanding tube sheet in both ends of pipe assembly, one side that the tube sheet carried on the back mutually is equipped with the safety cover, one side that the tube sheet is close to the safety cover is equipped with the boss, the boss is square ring-shaped, the tip that the safety cover is close to the tube sheet is equipped with the draw-in groove, the cooperation of pegging graft of boss and draw-in groove, be equipped with the locking Assembly who is used for locking safety cover and boss on the safety cover. The coating has the effect of improving the corrosion resistance.

Description

Fin heat exchanger

Technical Field

The application relates to the field of heat exchange devices, in particular to a fin heat exchanger.

Background

The finned radiator is one heat exchanger for gas and liquid heat exchanger and has fins on common base pipe for strengthening heat transfer, which may be steel pipe, stainless steel pipe, copper pipe, etc. and may be steel belt, stainless steel belt, copper belt, aluminum belt, etc.

Chinese patent No. CN201340144Y discloses a fin heat exchanger, which comprises fins, heat exchange copper tubes fixed in the fins, and an electric heating tube for delaying frosting, wherein the electric heating tube is inserted in the fins and located at the air inlet side of the fin heat exchanger. The electric heating tubes can be arranged at intervals. The fin heat exchanger can also comprise a temperature probe for detecting the temperature of the fin, and the temperature probe is electrically connected with the electric heating pipe. The heat exchange copper pipe is fixed in the fin through the tube plates at two ends.

With respect to the related art in the above, the inventors consider that there are the following drawbacks: the fin type heat exchanger adopts an open design, namely pipe assemblies at two ends of the fin type heat exchanger are in direct contact with dust, rainwater and the like in the air, and the oxidation of a heat exchanger body or the pipe assemblies in the heat exchanger body or the places with severe environment and the like is easily caused to cause corrosion.

SUMMERY OF THE UTILITY MODEL

In order to improve corrosion resistance, the application provides a fin heat exchanger.

The fin heat exchanger adopts the following technical scheme:

the utility model provides a fin heat exchanger, includes the heat exchanger body, the heat exchanger body includes the pipe assembly, connects the tube sheet at pipe assembly both ends, the outstanding tube sheet in both ends of pipe assembly, one side that the tube sheet was carried on the back mutually is equipped with the safety cover, one side that the tube sheet is close to the safety cover is equipped with the boss, the boss is square ring-shaped, the tip that the safety cover is close to the tube sheet is equipped with the draw-in groove, boss and draw-in groove grafting cooperation, be equipped with the locking Assembly who is used for locking safety cover and boss on the safety cover.

By adopting the technical scheme, during installation, the clamping groove on the protective cover is aligned to the boss, the protective cover is clamped on the tube plate, and the protective cover is locked by the locking assembly; the pipe assemblies at two ends are positioned in the protection range of the protection cover, so that the possibility of corrosion of the pipe assemblies caused by direct contact of dust, rainwater and the like with the pipe assemblies is reduced, and the corrosion resistance is improved; the protective cover only covers on the tube plate, so that heat exchange is not influenced, and the heat exchange efficiency is ensured.

Optionally, a plurality of locking holes are formed in the protective cover and communicated with the clamping groove, a plurality of counter bores corresponding to the locking holes are formed in the side wall of the boss, the locking assembly comprises a bolt penetrating through the locking holes, and one end of the bolt is embedded in the corresponding counter bores.

Through adopting above-mentioned technical scheme, the bolt passes the locking hole and inlays in the counter bore, and is fixed with safety cover and tube sheet, has reduced the possibility that the safety cover breaks away from the tube sheet by oneself, has improved the stability of safety cover installation.

Optionally, a magnet is embedded at the bottom of the counter bore, and the magnet is adsorbed to the plug pin.

Through adopting above-mentioned technical scheme, the bolt is adsorbed by magnet in the counter bore bottom, is difficult for droing, has further improved the stability of safety cover installation.

Optionally, the bottom of the clamping groove is fixedly connected with a plurality of springs, and one end, back to the bottom of the clamping groove, of each spring abuts against the corresponding boss.

Through adopting above-mentioned technical scheme, the safety cover compresses tightly on the boss under locking Assembly's effect, and boss and draw-in groove bottom compression spring, locking Assembly pull out the back, and the spring release elastic potential energy is ejecting with the safety cover, has improved the convenience of dismantling.

Optionally, one side of the tube plate close to the protection cover is provided with a first sealing ring, the first sealing ring is sleeved outside the boss, and one side of the first sealing ring, which faces away from the tube plate, is abutted against the protection cover.

Through adopting above-mentioned technical scheme, when the safety cover lid closed on the tube sheet, the first sealing washer of compression, deformation takes place for first sealing washer, fills the clearance between safety cover and the tube sheet, has improved the leakproofness.

Optionally, the pipe assembly includes liquid inlet spare and goes out liquid spare, set up the feed liquor hole that supplies the liquid inlet spare to pass through and the play liquid hole that supplies the liquid outlet spare to pass through on the protective cover.

Through adopting above-mentioned technical scheme, the feed liquor piece passes the feed liquor hole, goes out the liquid hole that the liquid piece passed, and the safety cover does not influence going on of heat exchange, guarantees heat exchange efficiency.

Optionally, the liquid inlet hole and the liquid outlet hole are both provided with second sealing rings.

Through adopting above-mentioned technical scheme, the second sealing washer has reduced the clearance between feed liquor piece and the safety cover, has gone out the clearance between liquid piece and the safety cover, has improved the leakproofness.

Optionally, the inner wall of the protective cover is provided with absorbent cotton.

Through adopting above-mentioned technical scheme, the cotton moisture that absorbs water absorbs the inside moisture of safety cover, reduces moisture and the pipe assembly direct contact and cause the possibility that the pipe assembly corrodes.

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

1. the protective cover is arranged, the pipe assemblies at two ends are positioned in the protective range of the protective cover, the possibility of pipe assembly corrosion caused by direct contact of dust, rainwater and the like with the pipe assemblies is reduced, and the anti-corrosion performance is improved;

2. the locking assembly is arranged, so that the possibility that the protective cover is automatically separated from the tube plate is reduced, and the mounting stability of the protective cover is improved;

3. the water absorption cotton is arranged to absorb the water in the protective cover, so that the possibility of corrosion of the pipe assembly caused by direct contact of the water and the pipe assembly is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a liquid inlet part and a liquid outlet part in the embodiment of the application;

fig. 3 is a cross-sectional view of the retaining member in an embodiment of the present application.

Description of reference numerals: 1. a heat exchanger body; 2. a tube assembly; 21. a heat exchange copper pipe; 22. a liquid inlet part; 23. discharging a liquid; 3. a tube sheet; 31. a boss; 32. a counter bore; 33. a magnet; 34. a first seal ring; 341. an outer ring; 342. an inner ring; 4. a protective cover; 41. a liquid inlet hole; 42. a liquid outlet hole; 43. a second seal ring; 44. a card slot; 441. a spring; 45. a locking hole; 46. a bolt; 47. absorbent cotton.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a fin heat exchanger.

Referring to fig. 1 and 2, the fin heat exchanger includes a heat exchanger body 1, and the heat exchanger body 1 includes a tube assembly 2 and tube plates 3 fixedly connected to both ends of the tube assembly 2. The tube assembly 2 comprises a heat exchange copper tube 21, a liquid inlet piece 22 and a liquid outlet piece 23 which are connected to the same end of the heat exchange copper tube 21, the liquid inlet piece 22 is positioned above the liquid outlet piece 23, and two ends of the tube assembly 2 protrude out of the tube plate 3. One side of the two tube plates 3 opposite to each other is detachably connected with a protective cover 4, and a liquid inlet hole 41 for passing through a liquid inlet piece 22 and a liquid outlet hole 42 for passing through a liquid outlet piece 23 are formed in the protective cover 4 at one end of the heat exchanger body 1. Second sealing rings 43 are respectively glued in the liquid inlet hole 41 and the liquid outlet hole 42, and the second sealing rings 43 reduce the gaps among the liquid inlet piece 22, the liquid outlet piece 23 and the protective cover 4, so that the sealing performance is improved.

Referring to fig. 1 and 2, the pipe assembly 2 at both ends is within the protection range of the protective cover 4, so that the possibility of corrosion of the pipe assembly 2 caused by direct contact of dust, rainwater and the like with the pipe assembly 2 is reduced, and the corrosion resistance is improved. Meanwhile, the protective cover 4 only covers the tube plate 3, heat exchange is not affected, heat exchange efficiency is guaranteed, and when the detachable protective cover 4 enables the tube assembly 2 to be damaged, the protective cover 4 can be opened in time for maintenance, so that maintenance is more convenient.

Referring to fig. 2, a boss 31 is formed on one side of the tube plate 3 adjacent to the protective cover 4, and the boss 31 has a square ring shape. The protective cover 4 is a square box with one side opened, and one opened end of the protective cover 4 is covered on the tube plate 3. The wall thickness of the end part of the opening of the protective cover 4 is provided with a clamping groove 44, the clamping groove 44 corresponds to the lug boss 31, the clamping groove 44 is a square ring groove, and the lug boss 31 is embedded in the clamping groove 44 and is in inserted connection with the clamping groove 44. In order to reduce the possibility of the protective cover 4 detaching itself from the tube plate 3, a locking assembly for locking the protective cover 4 and the tube plate 3 is provided on the protective cover 4.

Referring to fig. 2, during installation, the locking groove 44 on the protecting cover 4 is aligned with the boss 31, the protecting cover 4 is clamped on the tube plate 3, and the locking assembly is used for locking the protecting cover. When the pipe assembly 2 is disassembled, the locking assembly is released, the protective cover 4 is moved along the direction far away from the pipe assembly 2, and the protective cover 4 can be disassembled, so that the pipe assembly 2 can be conveniently overhauled.

Referring to fig. 3, the top and bottom of the protection cover 4 are formed with a plurality of locking holes 45 communicating with the catching grooves 44, and the locking holes 45 are vertically formed. The side wall of the boss 31 is provided with a plurality of counter bores 32, and the counter bores 32 correspond to the locking holes 45 one by one. The locking assembly comprises a bolt 46 vertically penetrating through the locking hole 45, and one end of the bolt 46 close to the center of the protective cover 4 is embedded in the counter bore 32. The bolt 46 penetrates through the locking hole 45 and is embedded in the counter bore 32 to fix the protective cover 4 and the tube plate 3, so that the possibility that the protective cover 4 is separated from the tube plate 3 by itself is reduced, and the mounting stability of the protective cover 4 is improved. The magnet 33 is embedded at the bottom of the counter bore 32, the plug pin 46 is made of iron, and the plug pin 46 is adsorbed at the bottom of the counter bore 32 by the magnet 33 and is not easy to fall off, so that the mounting stability of the protective cover 4 is further improved.

Referring to fig. 3, springs 441 are fixedly connected to the bottoms of the four corners of the locking groove 44, and one end of each spring 441, which faces away from the bottom of the locking groove 44, abuts against the boss 31. To reduce the likelihood of the spring 441 twisting under compression of the boss 31, a shorter spring is used for the spring 441. The protection cover 4 is pressed on the boss 31 under the action of the locking assembly, the spring 441 is compressed at the bottoms of the boss 31 and the clamping groove 44, after the locking assembly is pulled down, the spring 441 releases elastic potential energy to eject the protection cover 4, and the convenience of detachment is improved.

Referring to fig. 3, a first sealing ring 34 is fixedly connected to the tube plate 3, and a side of the first sealing ring 34 facing away from the tube plate 3 abuts against the protective cover 4. The first seal ring 34 includes an outer ring 341 disposed outside the boss 31 and an inner ring 342 disposed inside the boss 31. When the protection cover 4 covers the tube plate 3, the first sealing ring 34 is compressed, the first sealing ring 34 deforms, a gap between the protection cover 4 and the tube plate 3 is filled, and the sealing performance is improved.

Referring to fig. 3, a water absorbent cotton 47 is glued on the inner wall of the protective cover 4, and the water absorbent cotton 47 absorbs the water inside the protective cover 4, so as to reduce the possibility that the water directly contacts with the pipe assembly 2 to cause corrosion of the pipe assembly 2.

The implementation principle of the fin heat exchanger in the embodiment of the application is as follows: during installation, the clamping grooves 44 on the protective cover 4 are aligned with the bosses 31, and the protective cover 4 is clamped on the tube plate 3. The plug 46 is inserted into the locking hole 45, and the bottom of the plug 46 is inserted into the counter bore 32 and attracted by the magnet 33. The protective cover 4 compresses the first sealing ring 34, the first sealing ring 34 deforms to fill the gap between the protective cover 4 and the tube plate 3, and the spring 441 is compressed at the bottoms of the boss 31 and the clamping groove 44. When the protective cover is disassembled, the bolt 46 is pulled down, the spring 441 releases elastic potential energy, and the protective cover 4 is ejected out.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above 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

1. A fin heat exchanger, includes heat exchanger body (1), heat exchanger body (1) includes tube assembly (2), connects tube sheet (3) at tube assembly (2) both ends, the both ends of tube assembly (2) are outstanding tube sheet (3), its characterized in that: one side that tube sheet (3) carried on the back mutually is equipped with safety cover (4), one side that tube sheet (3) are close to safety cover (4) is equipped with boss (31), boss (31) are square ring-shaped, the tip that safety cover (4) are close to tube sheet (3) is equipped with draw-in groove (44), boss (31) and draw-in groove (44) cooperation of pegging graft, be equipped with the locking Assembly who is used for locking safety cover (4) and boss (31) on safety cover (4).

2. The finned heat exchanger of claim 1, wherein: open on safety cover (4) and to have a plurality of locking holes (45), locking hole (45) communicate with each other with draw-in groove (44), it has a plurality of counter bores (32) that correspond with locking hole (45) to open on the lateral wall of boss (31), locking Assembly is including wearing to establish bolt (46) in locking hole (45), the one end of bolt (46) inlays in counter bore (32) that correspond.

3. The finned heat exchanger of claim 2, wherein: a magnet (33) is embedded in the bottom of the counter bore (32), and the magnet (33) is adsorbed to the plug pin (46).

4. The finned heat exchanger of claim 1, wherein: the bottom of the clamping groove (44) is fixedly connected with a plurality of springs (441), and one end, back to the bottom of the clamping groove (44), of each spring (441 abuts against the boss (31).

5. The finned heat exchanger of claim 1, wherein: one side that tube sheet (3) are close to safety cover (4) is equipped with first sealing washer (34), first sealing washer (34) cover is established outside boss (31), one side and safety cover (4) counterbalance of first sealing washer (34) tube sheet (3) dorsad.

6. The finned heat exchanger of claim 1, wherein: the pipe assembly (2) comprises a liquid inlet piece (22) and a liquid outlet piece (23), and a liquid inlet hole (41) for the liquid inlet piece (22) to pass through and a liquid outlet hole (42) for the liquid outlet piece (23) to pass through are formed in the protective cover (4).

7. The finned heat exchanger of claim 6, wherein: and second sealing rings (43) are arranged in the liquid inlet hole (41) and the liquid outlet hole (42).

8. The finned heat exchanger of claim 1, wherein: and the inner wall of the protective cover (4) is provided with water-absorbing cotton (47).