CN218583837U

CN218583837U - Novel heat exchanger

Info

Publication number: CN218583837U
Application number: CN202223112604.4U
Authority: CN
Inventors: 聂灼辉
Original assignee: Foshan Ruijia Machinery Equipment Co ltd
Current assignee: Foshan Ruijia Machinery Equipment Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-07
Anticipated expiration: 2032-11-23

Abstract

The utility model provides a novel heat exchanger, which relates to the technical field of heat exchangers and comprises a pipe barrel, a heat transfer pipe group, a first water cover and a second water cover, wherein the heat transfer pipe group is positioned in the pipe barrel; tube plates are arranged on two sides of the tube barrel, the tube plate on one side is connected with the first water cover, and the tube plate on the other side is connected with the second water cover; the heat transfer pipe group comprises a plurality of stainless steel pipes, an aluminum pipe is sleeved outside each stainless steel pipe, the surface of the aluminum pipe is rolled to form a threaded fin shape, and the outer wall of each stainless steel pipe is tightly matched with the inner wall of the aluminum pipe. The utility model discloses an useful part is, compares with the tradition and adopts the copper tubing, adopts the combination setting of aluminum pipe cover outside the stainless steel pipe, and material cost can reduce to rolling threaded fin on the aluminum pipe, inside nonrust steel pipe has no damage, and the stainless steel pipe can not take place to break as liquid conveying pipe, and the shock strength is greater than the copper tubing far away.

Description

Novel heat exchanger

Technical Field

The utility model belongs to the technical field of the heat exchanger technique and specifically relates to a novel heat exchanger.

Background

The heat exchanger is widely applied, heating radiating fins for heating in daily life, condensers in steam turbine devices, oil coolers on space rockets and the like are all heat exchangers, most of small and medium-sized shell and tube heat exchangers on the market at present adopt copper tubes, and then threaded fins are rolled on the surfaces of the copper tubes to improve the heat transfer effect. However, red copper heat transfer tubes suffer from the following drawbacks: 1. red copper is expensive, and the cost of red copper is about three times that of stainless steel or aluminum; 2. the surface of the copper pipe is rolled with threads, so that the surface strength of the copper pipe is seriously damaged, and the heat transfer pipe is easy to damage and break; 3. the thread depth of the red copper rolling is shallow, the thread depth of a red copper pipe with the wall thickness of 1.2mm is usually not more than 0.7mm, and the heat transfer area per unit length is low.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes shortcoming among the prior art provides a novel heat exchanger, can overcome the prior art defect that mentions in the background art.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a novel heat exchanger comprises a pipe barrel, a heat transfer pipe group, a first water cover and a second water cover, wherein the heat transfer pipe group is positioned in the pipe barrel; tube plates are arranged on two sides of the tube barrel, the tube plate on one side is connected with the first water cover, and the tube plate on the other side is connected with the second water cover;

the heat transfer pipe group comprises a plurality of stainless steel pipes, an aluminum pipe is sleeved outside each stainless steel pipe, the surface of each aluminum pipe is rolled to form a threaded fin shape, and the outer wall of each stainless steel pipe is tightly matched with the inner wall of each aluminum pipe; the tube plate is provided with a plurality of water flow holes, and the number of the water flow holes is the same as that of the stainless steel tubes and is communicated with the stainless steel tubes in a one-to-one correspondence manner;

an oil inlet and an oil outlet are arranged above the pipe barrel, a flow guide assembly is arranged at the heat transfer pipe assembly, a flow channel is formed in the flow guide assembly, and the oil inlet, the flow channel and the oil outlet are communicated.

Furthermore, the first water cover is provided with a water inlet pipe, and the second water cover is provided with a water outlet pipe.

Furthermore, the first water cover is provided with a first partition board, the first partition board divides the interior of the first water cover into two independent areas, one of the areas is connected with a water inlet pipe, and the other area is connected with a water outlet pipe; the second water cover is a backwater cover.

Furthermore, the first water cover is provided with a second partition plate and a third partition plate which are perpendicular to each other, the second partition plate and the third partition plate divide the interior of the first water cover into three independent areas, one of the areas is connected with a water inlet pipe, one of the areas is connected with a water outlet pipe, and the other area is used as a water return area; the second water cover is provided with a fourth partition board, the fourth partition board divides the interior of the second water cover into an upper area and a lower area, the fourth partition board corresponds to the second partition board, and when the first water cover and the second water cover are assembled to correspond to the tube plates, the fourth partition board and the second partition board are located on the same plane.

Furthermore, the flow guide assembly is a baffle plate, and the baffle plates are arranged in the pipe barrel in a staggered mode.

Further, the flow guide assembly is a spiral plate, and the edge of the spiral plate is closely connected with the inner wall of the pipe barrel.

The support frame is positioned below the pipe barrel, the fixing piece wraps two ends of the pipe barrel and is fixedly connected to the support frame, and the support frame is provided with a plurality of mounting holes.

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

compared with the traditional copper tube, the material cost can be reduced by adopting the combined arrangement that the aluminum tube is sleeved outside the stainless steel tube, and the threaded fin is rolled on the aluminum tube, so that the stainless steel tube in the aluminum tube is free from damage, the stainless steel tube as a liquid conveying tube can not be broken, and the shock strength is far greater than that of the copper tube; in addition, fins rolled on the aluminum pipe are relatively deep, the depth of the aluminum thread fins can reach about 1.5mm on the premise of the same thread outer diameter and pitch, and the heat transfer area of unit length is far larger than that of the copper pipe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention, and do not constitute a limitation on the invention, in which:

FIG. 1 is a schematic structural view of a first embodiment of a heat exchanger;

FIG. 2 is a schematic structural view of a second embodiment of a heat exchanger;

FIG. 3 is a schematic view of a first water cover of the heat exchanger in a second embodiment;

FIG. 4 is a schematic view of a second embodiment of a heat exchanger in which the baffle assembly is in the form of a spiral plate;

FIG. 5 is a schematic view of a second embodiment of a heat exchanger in which the baffle assembly is in the form of a baffle;

FIG. 6 is a schematic view of the internal structure of the heat exchanger in the form of a spiral plate with the flow directing assembly;

FIG. 7 is a side view of a third embodiment of a heat exchanger;

FIG. 8 is a schematic cross-sectional view of AA in FIG. 7;

FIG. 9 is a first schematic view of a first water cover of the heat exchanger in a third embodiment;

fig. 10 is a second structural view of the first water cover of the heat exchanger in the third embodiment.

In the figure: 1. a pipe barrel; 101. an oil inlet; 102. an oil outlet; 2. a heat transfer tube group; 3. a first water cover; 301. a water inlet pipe; 302. a first separator; 303. a second separator; 304. a water return area; 305. a third partition plate; 4. a second water cover; 401. a water outlet pipe; 402. a fourth separator; 5. a tube sheet; 501. a water flow hole; 6. a flow guide assembly; 7. a fixing member; 8. a support frame; 801. and (7) installing holes.

Detailed Description

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

As shown in fig. 1 to 10, a novel heat exchanger comprises a tube 1, a heat transfer tube group 2, a first water cover 3 and a second water cover 4, wherein the heat transfer tube group 2 is positioned in the tube 1; tube plates 5 are arranged on two sides of the tube barrel 1, the tube plate 5 on one side is connected with the first water cover 3, and the tube plate 5 on the other side is connected with the second water cover 4; and after the tube plates 5 correspond to the bolt holes of the first water cover 3 and the second water cover 4, the bolts are screwed in, so that the first water cover 3 and the second water cover 4 can be correspondingly fixed on the tube plates 5 at two sides of the tube barrel 1.

One of the improvements of the scheme of the application is that the heat transfer pipe group 2 comprises a plurality of stainless steel pipes, an aluminum pipe is sleeved outside each stainless steel pipe, the outer wall of each stainless steel pipe is tightly matched with the inner wall of each aluminum pipe, namely the stainless steel pipes and the aluminum pipes are assembled in a coaxial sleeve connection mode, the stainless steel pipes are arranged inside the stainless steel pipes, the aluminum pipes are arranged outside the stainless steel pipes, and threaded fin shapes are formed on the surfaces of the aluminum pipes in a rolling mode and are beneficial to heat dissipation. The surface of the metal pipe body is rolled to form a thread fin shape, which is the prior art, but the traditional heat dissipation pipe is a red copper pipe, threads are rolled on the surface of the red copper pipe, the structure is rolled on the surface of an aluminum pipe, and the processing technology is the same. Firstly, the technology of sleeving a stainless steel pipe with an aluminum pipe is used for replacing the traditional red copper pipe, so that the material cost is reduced; in addition, the tradition is direct at copper tubing surface rolling screw thread, seriously damages copper pipe surface strength, leads to the easy damaged fracture of heat-transfer pipe to the copper rolling screw thread depth is more shallow, nevertheless in this application scheme, can roll on the aluminum pipe, can roll darker screw thread fin on the one hand, and on the other hand does not cause destruction to inside nonrust steel pipe, makes nonrust steel pipe structure remain stable, and the antidetonation is effectual.

As seen from fig. 6, the tube plate 5 is provided with a plurality of water flow holes 501, and the number of the water flow holes 501 is the same as the number of the stainless steel tubes and is communicated with one another, i.e. water flows into the stainless steel tubes of the heat transfer tube group 2 from the water flow holes 501 of the tube plate 5 on one side and finally flows out from the water flow holes 501 of the tube plate 5 on the other side.

An oil inlet 101 and an oil outlet 102 are arranged above the tube barrel 1, a flow guide assembly 6 is arranged at the heat transfer tube group 2, a flow channel is formed on the flow guide assembly 6, and the oil inlet 101, the flow channel and the oil outlet 102 are communicated.

High-temperature oil enters the barrel 1 from the oil inlet 101, flows along a flow channel formed by the flow guide assembly 6 and finally flows out from the oil outlet 102; the heat transfer pipe group 2 is circulated with cooling water, and when the heat transfer pipe group 2 works, high-temperature oil wraps the heat transfer pipe group 2 when the pipe barrel 1 flows, so that the cooling water in the heat transfer pipe group 2 can dissipate the heat of the high-temperature oil, and the high-temperature oil is cooled.

As shown in fig. 1, as a first embodiment of the heat exchanger, the first water cap 3 is provided with a water inlet pipe 301, the second water cap 4 is provided with a water outlet pipe 401, and water enters from the water inlet pipe 301, passes through the water flow holes 501 of the tube plate 5 on one side, the stainless steel pipes of the heat transfer pipe group 2, the water flow holes 501 of the tube plate 5 on the other side in sequence, and finally is discharged from the water outlet pipe 401 of the second water cap 4, while the water flows in a single flow.

As shown in fig. 2 to 6, as a second embodiment of the heat exchanger, the first water cover 3 is provided with a first partition plate 302, the first partition plate 302 divides the inside of the first water cover 3 into two independent areas, one of which is connected with a water inlet pipe 301, and the other is connected with a water outlet pipe 401; the two areas are both provided with water flow holes 501 correspondingly; when the first water cover 3 is assembled to the corresponding tube plate 5, the first partition plate 302 is pressed against the surface of the tube plate 5, i.e. water divided into two independent areas is not circulated, one area is water inlet and one area is water outlet; the second water cover 4 is a water return cover, and the inside of the second water cover 4 is provided with no partition in the embodiment, so that water can freely flow.

In this embodiment, the high-temperature oil flows in a constant manner, and enters the barrel 1 from the oil inlet 101, follows the flow passage formed by the flow guide assembly 6 and finally flows out from the oil outlet 102; the cooling water flows in from the water inlet pipe 301, flows into the heat transfer pipe group 2 along the water flow hole 501 of the corresponding area of the water inlet pipe 301, then flows into the second water cover 4, and the second water cover 4 returns water, so that the cooling water flows into the heat transfer pipe group 2 again (flows into the heat transfer pipe group 2 corresponding to the water outlet pipe 401), and finally the water flows out from the water flow hole 501 corresponding to the water outlet pipe 401 and flows out through the water outlet pipe 401; the water now flows in a U-shape.

As a third embodiment of the heat exchanger, as shown in fig. 7 to 10, the first water cover 3 is provided with a second partition plate 303 and a third partition plate 305 which are perpendicular to each other, the second partition plate 303 and the third partition plate 305 divide the inside of the first water cover 3 into three independent areas, when the first water cover 3 is assembled to the corresponding tube plate 5, the second partition plate 303 and the third partition plate 305 are pressed against the surface of the tube plate 5, that is, the water divided into the three independent areas is not circulated, one of the areas is connected with a water inlet pipe 301, one of the areas is connected with a water outlet pipe 401, and the other area is used as a water return area 304; the second water cover 4 is provided with a fourth partition plate 402, the fourth partition plate 402 divides the inside of the second water cover 4 into an upper area and a lower area, the fourth partition plate 402 corresponds to the second partition plate 303, and the upper area and the lower area of the second water cover 4 are not communicated when the second water cover 4 is assembled to the corresponding tube plate 5; when the first and second water caps 3 and 4 are fitted to the corresponding tube plates 5, the fourth partition 402 is in the same plane as the second partition 303.

As shown in the figure, in this embodiment, the cooling water flows in from the water inlet pipe 301, flows to the lower area of the second water cover 4 along the corresponding heat transfer pipe group 2 to return water, at this time, the return water returns to the corresponding heat transfer pipe group 2 and flows to the water return area 304, performs second return water in the water return area 304, returns to the corresponding heat transfer pipe group 2 and flows to the upper area of the second water cover 4 to perform third return water, and finally returns to the corresponding heat transfer pipe group 2 and flows to the water outlet pipe 401 to flow out; the water now flows in a W-shape.

The second embodiment and the third embodiment are both used for prolonging the flow path of cold gas water in the tube 1 and enhancing the heat exchange effect.

Taking fig. 5 as an example, the flow guiding assembly 6 is a baffle plate, the baffle plate is arranged in the pipe barrel 1 in a staggered manner, the baffle plate and the unclosed area of the inner wall of the pipe barrel 1 form a flow channel, and the high-temperature oil flows along the flow channel, so that the fluid passes through in a bow shape.

Taking fig. 4 and fig. 6 as an example, the flow guiding assembly 6 is a spiral plate, and the edge of the spiral plate is tightly connected with the inner wall of the pipe barrel 1; the high-temperature oil flows along the flow channel formed by the spiral plate, so that the fluid passes in a spiral shape.

The baffle plate and the spiral plate are arranged to prolong the flow path of the long high-temperature oil in the pipe barrel 1, so that a good cooling effect is achieved.

Furthermore, including mounting 7 and support frame 8, support frame 8 is located the below of bobbin 1, reaches the effect of support to bobbin 1, and mounting 7 parcel bobbin 1 both ends are and pass through bolted connection or welding rigid coupling at support frame 8, are favorable to locking bobbin 1 on support frame 8, and support frame 8 is provided with a plurality of mounting hole 801, is convenient for fix support frame 8 subaerial through mounting hole 801.

Finally, it should be noted that: although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or replace part of the technical features of the embodiments with equivalent alternatives, modifications, and improvements made within the spirit and principles of the present invention.

Claims

1. A novel heat exchanger is characterized by comprising a pipe barrel, a heat transfer pipe group, a first water cover and a second water cover, wherein the heat transfer pipe group is positioned in the pipe barrel; tube plates are arranged on two sides of the tube barrel, the tube plate on one side is connected with the first water cover, and the tube plate on the other side is connected with the second water cover;

an oil inlet and an oil outlet are arranged above the pipe barrel, a flow guide assembly is arranged at the heat transfer pipe group, a flow channel is formed in the flow guide assembly, and the oil inlet, the flow channel and the oil outlet are communicated.

2. A novel heat exchanger according to claim 1 wherein the first water cap is provided with an inlet pipe and the second water cap is provided with an outlet pipe.

3. A novel heat exchanger according to claim 1, characterized in that the first water cover is provided with a first partition plate, the first partition plate divides the interior of the first water cover into two independent areas, wherein one area is connected with a water inlet pipe, and the other area is connected with a water outlet pipe; the second water cover is a backwater cover.

4. The novel heat exchanger according to claim 1, wherein the first water cover is provided with a second partition plate and a third partition plate which are perpendicular to each other, the second partition plate and the third partition plate divide the interior of the first water cover into three independent areas, one of the three independent areas is connected with a water inlet pipe, one of the three independent areas is connected with a water outlet pipe, and the other independent area is used as a water return area; the second water cover is provided with a fourth partition plate, the fourth partition plate divides the interior of the second water cover into an upper area and a lower area, the fourth partition plate corresponds to the second partition plate, and when the first water cover and the second water cover are assembled to correspond to the tube plates, the fourth partition plate and the second partition plate are located on the same plane.

5. A novel heat exchanger according to any one of claims 2 to 4 wherein the flow directing assemblies are baffles which are arranged in staggered relationship within the tubes.

6. A novel heat exchanger according to any one of claims 2 to 4 wherein the flow directing elements are spiral plates having edges which closely engage the inner wall of the tube.

7. The novel heat exchanger according to claim 1, characterized by comprising a fixing member and a support frame, wherein the support frame is located below the tube barrel, the fixing member wraps two ends of the tube barrel and is fixedly connected to the support frame, and the support frame is provided with a plurality of mounting holes.