CN211782892U

CN211782892U - Heat exchanger

Info

Publication number: CN211782892U
Application number: CN202020382690.2U
Authority: CN
Inventors: 王煜
Original assignee: Northwestern Polytechnical University
Current assignee: Northwestern Polytechnical University
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-10-27
Anticipated expiration: 2030-03-23

Abstract

The utility model provides a heat exchanger, belonging to the technical field of heat exchangers, comprising a heat exchange box, two medium grooves and a plurality of heat exchange devices which are erected in the heat exchange box side by side; the two medium grooves are respectively arranged at two sides of the heat exchange box, one medium groove is a medium input end, and the other medium groove is a medium output end; the heat exchange device comprises a heat exchange tube and a sleeve; the heat exchange tubes penetrate into the sleeve and are spirally wound outside the sleeve along the axial direction, and the heat exchange tubes of two adjacent heat exchange devices are communicated end to end; the inside spiral baffle that is provided with of sleeve pipe, the both sides of heat transfer case seted up with sleeve pipe complex through-hole. The device has the advantages of simple structure, uniform heat transfer, full utilization of heat of the heat transfer medium and higher heat transfer efficiency.

Description

Heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field, concretely relates to novel heat exchanger.

Background

The heat exchanger, also known as a heat exchanger, is a device for transferring part of heat of a hot fluid to a cold fluid to meet the requirements of process conditions, and is also one of the main devices for improving energy utilization rate. Due to different conditions such as application occasions, media, working conditions and the like, the heat exchanger has different structural forms, and is a common tubular heat exchanger.

The tubular heat exchanger at the present stage is composed of a hot cavity, a cold cavity and a pipeline, and heat exchange is carried out by contacting heat-exchanged fluid with a heat transfer medium through a circuitous pipeline to transfer heat. However, the conventional tube heat exchanger has a complicated structure, cannot use a heat transfer medium to a large extent, thus resulting in poor heat transfer efficiency, and cannot uniformly heat a heat-transferred fluid.

Therefore, the utility model provides a new heat exchanger.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a heat exchanger. The device has the advantages of simple structure, uniform heat transfer, full utilization of heat of the heat transfer medium and higher heat transfer efficiency.

In order to achieve the above purpose, the utility model provides the following technical scheme.

A heat exchanger comprises a heat exchange box, two medium tanks and a plurality of heat exchange devices which are erected in the heat exchange box side by side; the two medium grooves are respectively arranged at two sides of the heat exchange box, one medium groove is a medium input end, and the other medium groove is a medium output end; the heat exchange device comprises a heat exchange tube and a sleeve; the heat exchange tubes penetrate into the sleeve and are spirally wound outside the sleeve along the axial direction, and the heat exchange tubes of two adjacent heat exchange devices are communicated end to end; the spiral partition plate is arranged inside the sleeve, and through holes matched with the sleeve are formed in two sides of the heat exchange box.

Preferably, a medium inlet is formed in the top of the medium groove on one side, a medium outlet is formed in the bottom of the medium groove on the other side, and pipelines and valves are arranged at the medium inlet and the medium outlet.

Preferably, an inlet duct and an outlet duct are also included; the inlet pipeline and the outlet pipeline are respectively arranged at two ends of the outer side of one medium groove, the inlet pipeline sequentially penetrates through the medium groove and the heat exchange box and is communicated with the heat exchange tube of the heat exchange device at one end, and the outlet pipeline penetrates through the medium groove and is communicated with the heat exchange tube of the heat exchange device at the other end.

Preferably, valves are arranged on the inlet pipeline and the outlet pipeline.

Preferably, a heat transfer medium and a heat-to-be-transferred fluid are also supplied; the heat transfer medium flows in from the medium inlet and flows out from the medium outlet; the heat-to-be-transferred fluid flows in from the inlet pipe and flows out from the outlet pipe.

Preferably, the medium tank and the heat exchange box are both double-layer shells, and vacuum is formed between the double-layer shells.

The utility model discloses beneficial effect:

the utility model provides a heat exchanger. The device can limit the flow velocity of a heat transfer medium through a spiral cavity formed by the spiral partition plate, can fully transfer heat, and enables the heat-transferred fluid in the heat exchange tube to be heated uniformly; meanwhile, the sleeve is spirally wound outside, external waste heat is used for heat exchange, the temperature of the heat-transfer fluid can be kept, and the heat conversion efficiency is improved; the device has simple structure and simple and convenient heat exchange operation flow.

The present invention will be further described with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is an overall structural view of a heat exchanger according to an embodiment of the present invention;

fig. 2 is a mounting structure view of a heat exchanger according to an embodiment of the present invention;

fig. 3 is a structural diagram of a heat exchange device of a heat exchanger according to an embodiment of the present invention;

fig. 4 is a view showing the inside structure of the casing of the heat exchanger according to the embodiment of the present invention;

fig. 5 is a cross-sectional view of the inside of a casing of a heat exchanger according to an embodiment of the present invention.

In the figure: 1. an outlet conduit; 2. a dielectric tank; 3. an inlet duct; 4. a media inlet; 5. a heat exchange box; 6. a heat exchange pipe; 7. a sleeve; 8. a media outlet; 9. a spiral separator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

A heat exchanger, as shown in figures 1-5, comprises a heat exchange box 5, two medium tanks 2 and a plurality of heat exchange devices which are erected in the heat exchange box 5 side by side; the two medium grooves 2 are respectively arranged at two sides of the heat exchange box 5, the medium groove 2 at one side is a medium input end, and the medium groove 2 at the other side is a medium output end; the heat exchange device comprises a heat exchange tube 6 and a sleeve 7; the heat exchange tubes 6 penetrate into the sleeve 7 and are spirally wound outside the sleeve 7 along the axial direction, and the heat exchange tubes 6 of two adjacent heat exchange devices are communicated end to end, so that the heat exchange tubes 6 and the sleeve 7 have the largest contact area, as shown in fig. 4; the inside spiral baffle 9 that is provided with of sleeve pipe 7, the both sides of heat transfer case 5 seted up with sleeve pipe 7 complex through-hole, spiral baffle 9 cuts apart into spiral cavity with sleeve pipe 7 is inside, the effectual velocity of flow that reduces heat transfer medium improves heat exchange efficiency, as shown in fig. 5.

Further, as shown in fig. 1, a medium inlet 4 is formed in the top of the medium groove 2 on one side, a medium outlet 8 is formed in the bottom of the medium groove 2 on the other side, and a pipeline and a valve are arranged at the medium inlet 4 and the medium outlet 8, so that the medium is controlled by the valve, and preferably, the medium can be assisted to enter and exit by a pump.

Preferably, it also comprises an inlet duct 3 and an outlet duct 1; an inlet pipeline 3 and an outlet pipeline 1 are respectively arranged at two ends of the outer side of one medium groove 2, the inlet pipeline 3 sequentially penetrates through the medium groove 2 and the heat exchange box 5 and is communicated with a heat exchange pipe 6 of a heat exchange device at one end, and the outlet pipeline 1 penetrates through the medium groove 2 and is communicated with the heat exchange pipe 6 of the heat exchange device at the other end; the whole device forms a cycle, and realizes heat exchange to a greater degree;

in addition, the inlet pipeline 3 and the outlet pipeline 1 are both provided with valves, and the inlet and the outlet of the heat-transferred fluid are controlled by the valves; a heat transfer medium and a heat-to-be-transferred fluid are also supplied; the heat transfer medium flows in from the medium inlet 4 and flows out from the medium outlet 8; the heat-transfer fluid flows in from the inlet pipe 3 and flows out from the outlet pipe 1.

In addition, the medium tank 2 and the heat exchange box 5 are both double-layer shells, and the double-layer shells are vacuum, so that heat insulation and heat preservation can be effectively realized, and the heat exchange efficiency is improved.

In the embodiment, the device is horizontally arranged, heat transfer media are input into the medium groove 2 on one side through the medium inlets 8, and the heat transfer media enter the sleeve 7 through the inlets of the heat transfer devices; the heat transfer medium has a slow flow rate due to the blocking action of the spiral partition plate 9, slowly passes through the sleeve 7, flows to the medium groove 2 on the other side and flows out from the medium outlet 8; the heat-exchanged fluid flows in from the inlet pipeline 3, exchanges heat through a plurality of heat exchange devices, and finally flows out through the outlet pipeline 1.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A heat exchanger is characterized by comprising a heat exchange box (5), two medium tanks (2) and a plurality of heat exchange devices which are erected in the heat exchange box (5) side by side; the two medium grooves (2) are respectively arranged at two sides of the heat exchange box (5), the medium groove (2) at one side is a medium input end, and the medium groove (2) at the other side is a medium output end; the heat exchange device comprises a heat exchange tube (6) and a sleeve (7); the heat exchange tubes (6) penetrate into the sleeve (7) and are spirally wound outside the sleeve (7) along the axial direction, and the heat exchange tubes (6) of two adjacent heat exchange devices are communicated end to end; a spiral partition plate (9) is arranged inside the sleeve (7), and through holes matched with the sleeve (7) are formed in two sides of the heat exchange box (5).

2. The heat exchanger according to claim 1, wherein a medium inlet (4) is formed in the top of the medium groove (2) on one side, a medium outlet (8) is formed in the bottom of the medium groove (2) on the other side, and pipelines and valves are arranged at the medium inlet (4) and the medium outlet (8).

3. The heat exchanger according to claim 2, characterized by further comprising an inlet conduit (3) and an outlet conduit (1); the heat exchange device is characterized in that the inlet pipeline (3) and the outlet pipeline (1) are respectively arranged at two ends of the outer side of the medium groove (2), the inlet pipeline (3) sequentially penetrates through the medium groove (2) and the heat exchange box (5) and is communicated with the heat exchange tube (6) of the heat exchange device at one end, and the outlet pipeline (1) penetrates through the medium groove (2) and is communicated with the heat exchange tube (6) of the heat exchange device at the other end.

4. A heat exchanger according to claim 3, characterised in that valves are provided on both the inlet conduit (3) and the outlet conduit (1).

5. The heat exchanger of claim 4, wherein a heat transfer medium and a fluid to be heat-transferred are also supplied; the heat transfer medium flows in from the medium inlet (4) and flows out from the medium outlet (8); the heat-to-be-transferred fluid flows in from the inlet pipe (3) and flows out from the outlet pipe (1).

6. The heat exchanger according to claim 1, characterized in that the medium tank (2) and the heat exchange box (5) are both double-layer shells, and a vacuum is formed between the double-layer shells.