CN212205768U

CN212205768U - Heat exchange device and lithium battery coating machine

Info

Publication number: CN212205768U
Application number: CN202020714908.XU
Authority: CN
Inventors: 林钟江; 李毅; 傅波澜
Original assignee: Dongguan Ousailai Electromechanical Technology Co ltd
Current assignee: Guangdong ousailai Technology Co.,Ltd.
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-12-22
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a heat transfer device and lithium cell coating machine, include: a header; the heat pipes are provided with pipe shells and liquid absorption cores arranged in the pipe shells, the liquid absorption cores are of porous capillary structures, one end of each heat pipe is communicated with the collecting pipe, and the other ends of every two adjacent heat pipes are connected into a whole through a plurality of elbows; the interior of the heat pipe is in a negative pressure vacuum state, and working liquid is arranged in the liquid absorption core. The technical scheme of the utility model NMP gas heat exchange in can being applied to the lithium cell coating machine can realize even heat transfer in the unit area, and is high-efficient and energy-conserving.

Description

Heat exchange device and lithium battery coating machine

Technical Field

The utility model relates to a lithium cell makes technical field, in particular to heat transfer device and lithium cell coating machine.

Background

The heat exchanger is an energy-saving equipment for transferring heat between materials between two or more than two kinds of flow gases with different temperatures, and is used for transferring heat from the flow gas with higher temperature to the flow gas with lower temperature, so that the temperature of the flow gas reaches the index specified by the flow to meet the requirements of process conditions, and is also one of main equipment for improving the energy utilization rate.

The super heat conductivity and the isothermal property of the heat pipe in the heat exchange device make the heat pipe become an ideal tool for controlling the temperature in the aerospace technology, and the heat exchange device has the advantages of compact structure, small pressure loss, being beneficial to controlling dew point corrosion and the like, and is also widely applied to industries of metallurgy, chemical industry, oil refining, boilers, ceramics, traffic, light spinning, machinery, electronics and the like.

Heat exchange devices in the current market all adopt gravity type heat pipes, are not only rough to manufacture, but also independently operate among the heat pipes, easily cause uneven heat exchange in unit area, and are difficult to meet the working requirements of high-efficiency heat exchange and energy conservation in the lithium battery manufacturing industry.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a heat transfer device and lithium cell coating machine can realize even heat transfer in the unit area, and is high-efficient and energy-conserving.

The utility model discloses a first aspect of the embodiment provides a heat transfer device, include:

a header;

the heat pipes are provided with pipe shells and liquid absorption cores arranged in the pipe shells, the liquid absorption cores are of porous capillary structures, one end of each heat pipe is communicated with the collecting pipe, and the other ends of every two adjacent heat pipes are connected into a whole through a plurality of elbows; the interior of the heat pipe is in a negative pressure vacuum state, and working liquid is arranged in the liquid absorption core.

According to the utility model provides a one or more technical scheme has following beneficial effect at least: the utility model discloses heat transfer device is equipped with the collector, a plurality of heat pipes, through the whole intercommunications of one end of collector with a plurality of heat pipes, connect the other end of every two adjacent heat pipes as an organic whole through the elbow, thereby make a plurality of heat pipes communicate each other, form novel heat pipe, and the heat pipe is inside to be negative pressure vacuum state, the imbibition core of arranging in the tube still is equipped with working liquid, with all single heat pipes parallelly connected back of getting up, can make the working liquid (heat exchange medium) interact in the heat pipe, realize even heat transfer effect, reach in unit area, the heat exchange power of all heat pipes is the same, high efficiency and energy-conservation.

According to some embodiments of the present invention, the heat pipe comprises a first region and a second region, wherein one of the first region and the second region is a releasing region and the other is a heated region; one of the header and the elbow is proximate the first region and one is proximate the second region.

According to some embodiments of the invention, the first zone is a heated zone, the second zone is a released zone, the header is proximate the first zone, and the bend is proximate the second zone; the heat pipe comprises a heating section and a condensing section, wherein the heating section is located in the first area, and the condensing section is located in the second area.

According to some embodiments of the invention, the heat pipe further comprises an adiabatic section, the adiabatic section is disposed between the heating section and the condensing section, and the adiabatic section is located in the isolation zone.

According to the utility model discloses a some embodiments, the release district is equipped with the cold wind pipe, it is equipped with the hot-blast main to receive the hot-blast main, the cold wind pipe orientation cold wind is carried to the heat pipe, the hot-blast main orientation the heat pipe carries hot-blastly.

According to some embodiments of the invention, each of the elbows is detachably connected with every two adjacent heat pipes.

According to some embodiments of the invention, the heat pipe is a flat circular pipe or an elliptical pipe or a circular pipe or a semicircular pipe.

According to the utility model discloses a some embodiments, including a plurality of heat exchange assemblies, heat exchange assembly sets up the heat pipe top.

According to some embodiments of the utility model, heat exchange assembly is aluminium fin or heat transfer fin.

The utility model discloses in the second aspect of the embodiment, a lithium battery coating machine is provided, include as above-mentioned first aspect heat transfer device. Because the utility model discloses lithium cell coating machine is provided with the heat transfer device of above-mentioned first aspect, therefore lithium cell coating machine has beneficial effect and the functional characteristic that any heat transfer device of the aforesaid brought.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a top view of a heat exchange device according to an embodiment of the present invention;

FIG. 2 is a side view of the heat exchange device shown in FIG. 1;

FIG. 3 is a front view of the heat exchange device shown in FIG. 1;

fig. 4 is a schematic structural view of the heat exchange device shown in fig. 3 to which cold air and hot air are supplied.

Reference numerals:

a header 100;

heat pipe 200, cartridge 210;

an elbow 300;

isolation zone 400, first zone 410, second zone 420;

a heat exchange assembly 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, inner, outer, etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, a first aspect of the embodiment of the present invention provides a heat exchanging device, including: a header 100; the heat pipes 200 are provided with pipe shells 210 and liquid absorbing cores arranged in the pipe shells 210, the liquid absorbing cores are of porous capillary structures, one end of each heat pipe 200 is communicated with the header 100, and the other ends of every two adjacent heat pipes 200 are connected into a whole through a plurality of elbows 300; the interior of heat pipe 200 is in a negative pressure vacuum state, and working liquid is provided in the liquid absorption core.

The embodiment of the utility model provides an in heat transfer device is equipped with a plurality of heat pipes 200, and every heat pipe 200 all is equipped with one end and the other end, during the installation, all is connected the intercommunication with a plurality of heat pipe 200's one end with header 100, and the other end with every two adjacent heat pipes 200 passes through elbow 300 and connects as an organic wholely to make the intercommunication that connects in parallel each other between a plurality of heat pipes 200, form novel heat pipe 200, and when the installation, take out into the negative pressure vacuum state with heat pipe 200 is inside. The wick disposed in the pipe case 210 is further provided with a working liquid, and after all the single heat pipes 200 are connected in parallel, the working liquids (heat exchange media) in the heat pipes 200 can interact with each other, thereby achieving a uniform heat exchange effect. Specifically, a layer of porous capillary wick is inserted and sleeved on the inner wall of the sealed high-vacuum tube shell 210, and the porous capillary wick is filled with working liquid. An external heat source inputs heat to one end of the heat pipe 200 to evaporate and vaporize the working liquid. Then the steam flows to the other end for condensation, and the released latent vaporization heat is sent to the outside, thereby realizing heat exchange. The condensed liquid is condensed into the liquid absorbing core and flows back to one end (inputting heat) under the pressure action of the porous capillary, thereby completing the automatic circulation of the working liquid. For example, an external heat source may input heat to one end of heat pipe 200 adjacent to header 100, and one ends of heat pipes 200 adjacent to header 100 may communicate with each other, and the working fluid may interact with heat pipe 200 and header 100, and the heat may cause the working fluid to evaporate and vaporize. Then the vapor flows to the other end of heat pipe 200 close to elbow 300 to condense, and the released latent heat of vaporization is sent to the outside, thereby realizing heat exchange. And the condensate is drawn back into the wick and flows back to the end of heat pipe 200 adjacent manifold 100 by the pressure of the porous wick, thereby completing the automatic circulation of the working fluid.

In other embodiments, the negative pressure vacuum state may be at 1.3 × 10^-1Pa or 1.3X 10^-4Pa. In other embodiments, the plurality of heat pipes 200 may be uniformly arranged to effectively utilize the usable area; the heat pipes 200 can be arranged in a staggered manner, so that the heat dissipation space between the heat pipes is increased, and the heat dissipation efficiency is improved.

According to the utility model provides a one or more technical scheme has following beneficial effect at least: compared with the prior art, the utility model discloses heat transfer device can be applied to the gaseous heat exchange of NMP in the lithium cell coating machine, can realize even heat transfer effect, reaches in unit area, and all heat pipe 200's heat exchange power is the same, and is high-efficient and energy-conserving.

According to some embodiments of the present invention, including the isolation zone 400, the isolation zone 400 divides the heat pipe 200 into a first area 410 and a second area 420, one of the first area 410 and the second area 420 is a releasing area, and the other is a heated area; one of the header 100 and the elbow 300 is proximate the first region 410 and one is proximate the second region 420.

Specifically, the isolation strip 400 divides the heat pipe 200 into a first area 410 and a second area 420, for example, the first area 410 may be a release area, and the release area is a cooling medium input into the heat pipe 200 from the outside; the second area 420 is a heated area, the heated area is an external heat source for inputting heat to the heat pipe 200, and the isolation band 400 is disposed to isolate the first area 410 from the second area 420, so as to prevent series flow of heat and cold between the two areas, prevent heat from being directly transferred from the second area 420 to the first area 410 to heat the refrigerant, and ensure the heat exchange effect of the heat pipe 200. In other embodiments, the first zone 410 may also be a heated zone, while the second zone 420 is a released zone; both the header 100 and the elbow 300 are substantially straight, with the elbow 300 being proximate the second zone 420 if the header 100 is proximate the first zone 410, and conversely, the elbow 300 being proximate the first zone 410 if the header 100 is proximate the second zone 420. Referring to fig. 1 and 3, in the embodiment of the present invention, the first region 410 is a heated region, the second region 420 is a released region, the header 100 is close to the first region 410, the elbow 300 is close to the second region 420, and the isolation belt 400 effectively isolates the first region 410 and the second region 420 to prevent heat from being transferred to the released region, ensure the heat exchange effect of the heat pipe 200, and save energy and reduce emission.

According to some embodiments of the present invention, first zone 410 is a heated zone, second zone 420 is a released zone, header 100 is adjacent to first zone 410, and elbow 300 is adjacent to second zone 420; the heat pipe 200 includes a heating section located in the first region 410 and a condensing section located in the second region 420.

Referring to fig. 1 and fig. 3, specifically, the isolation belt 400 divides the heat pipe 200 into a first area 410 and a second area 420, in the embodiment of the present invention, the first area 410 is a heated area, and the heated area is an external heat source for inputting heat to the heat pipe 200, such as hot gas or a heat medium that needs to exchange heat; the second region 420 is a release region for inputting a cooling medium, such as cold air or cold water, into the heat pipe 200 from the outside; one end of the heat pipe 200 is a heating section and is located in the first region 410; the other end of the heat pipe 200 is a condensation section and is located in the second region 420. When the heat pipe is operated, an external heat source inputs heat at the heating section to evaporate and vaporize the working liquid, and the header 100 communicates one end of the heat pipe 200 with each other, so that the working liquid is uniformly heated in the heating sections of all the heat pipes 200; and the steam flows to the condensing section for condensation, and the released latent vaporization heat is sent to the outside, so that the heat exchange effect is realized. The condensate is retracted into the liquid absorption core and flows back to the heating section under the pressure action of the porous capillary, thereby completing the automatic circulation of the working liquid.

According to some embodiments of the present invention, heat pipe 200 further comprises an adiabatic section disposed between the heating section and the condensing section, the adiabatic section being located within isolation belt 400.

The embodiment of the utility model provides an in, heat pipe 200 still is equipped with adiabatic section, and adiabatic section setting is between heating section and condensation segment, can effectively prevent the direct transfer of heat in the heating section to the condensation segment, heats the condensation segment, influences heat pipe 200's heat exchange efficiency. Specifically, when the heating section of heat pipe 200 is heated, the working fluid in the wick evaporates and vaporizes, vapor flows to the condensing section through the heat insulating end under a slight pressure difference, and heat is released in the condensing section to condense into liquid, and the liquid flows back to the heating section under the action of capillary force in the porous capillary structure, so that the circulation is not good, and the heat exchange effect is realized.

According to some embodiments of the utility model, the release district is equipped with the cold wind pipe, receives the hot-blast main that is equipped with, and cold wind pipe carries cold wind towards heat pipe 200, and hot-blast main carries hot-blastly towards heat pipe 200.

Referring to fig. 1 to 4, wherein a in fig. 4 denotes a hot wind direction and B denotes a cold wind direction. In the embodiment of the present invention, the isolation belt 400 divides the heat pipe 200 into a first area 410 and a second area 420, the header 100 is close to the first area 410, and the elbow 300 is close to the second area 420; the first region 410 is a heated region, and the heated region is provided with a hot air pipe which conveys hot air towards the heat pipe 200; the second region 420 is a release region, and the release region is provided with a cold air pipe which conveys cold air toward the heat pipe 200. During operation, hot air is delivered to the first region 410, the working fluid interacts with the heat pipe 200 and the header 100 and absorbs heat, the heat is transferred to the second region 420 through the porous capillary structure, the cold air is continuously delivered to the second region 420, and the steam releases heat in the second region 420, thereby achieving a heat exchange effect. The median 400 keeps apart first region 410, second region 420, can reduce the condition of carrying out the cluster wind between hot-blast and the cold wind through setting up cold-blast pipe, hot-blast main to prevent that hot-blast transmission from reaching the release district, make hot-blast with the cold wind heating, can effectively reduce the loss. In other embodiments, the header 100 may be close to the second zone 420, the elbow 300 is close to the first zone 410, and the first zone 410 may be a releasing zone and the second zone 420 is a heated zone, which is not limited to this embodiment and will not be described herein.

According to some embodiments of the present invention, each elbow 300 is detachably connected to every two adjacent heat pipes 200.

Referring to fig. 1 and 2, in this embodiment, the elbow 300 may connect every two adjacent heat pipes 200, so that all the heat pipes 200 are connected in parallel to achieve uniform heat exchange, and the elbow 300 is detachably connected to the heat pipes 200, for example, the contact surfaces of the heat pipes 200 and the elbow 300 may be detachably connected by providing internal threads and external threads with different calibers. When one of the heat pipes 200 is failed or perforated, the damaged heat pipe 200 is conveniently detached, so that a new heat pipe 200 is replaced, waste of materials is reduced, and economic cost is reduced.

According to some embodiments of the present invention, the heat pipe 200 is a flat circular pipe or an elliptical pipe or a circular pipe or a semicircular pipe. Heat pipe 200 is the pipe in this embodiment, sets up the pipe and is convenient for batch production, and the pipe does not have edges and corners and still is convenient for transport, and under the same cross sectional area, circular cross section's water conservancy radius is greater than square cross section, and square cross section is greater than rectangular cross section, compares in square or rectangular pipe, and the reducible medium of pipe resistance that flows has the practicality. In other embodiments, heat pipe 200 may also be a flat circular pipe or an elliptical pipe or a semicircular pipe.

Referring to fig. 1, according to some embodiments of the present invention, including a plurality of heat exchange assemblies 500, heat exchange assemblies 500 are disposed above heat pipe 200. In this embodiment, a plurality of heat exchange assemblies 500 are disposed above the heat pipe 200. Because the inside and the outside of the heat pipe 200 are the convection heat exchange of two media, and the heat exchange coefficient of the working liquid in the heat pipe 200 is dozens of times or even hundreds of times of the heat exchange coefficient of the air outside the heat pipe 200, the original heat exchange area on the air side is expanded by additionally arranging the heat exchange component 500 outside the heat pipe 200, the defect of low heat exchange coefficient of the air outside the heat pipe 200 is overcome, and therefore the outer surface area of the heat pipe 200 is increased, and the heat exchange efficiency is improved.

According to some embodiments of the utility model, heat exchange assembly 500 is aluminium fin or heat transfer fin. In this embodiment, heat exchange assembly 500 can be aluminum fin or heat exchange fin, and increase aluminum fin or heat exchange fin through the surface at heat pipe 200 to increase heat pipe 200's external surface area can effectively improve heat exchange efficiency, has the practicality.

The utility model discloses the second aspect of embodiment provides a lithium battery coating machine, include the heat transfer device as above-mentioned first aspect. In this embodiment, since the lithium battery coater is provided with the heat exchanging device in any one of the above embodiments, the lithium battery coater in this embodiment has the beneficial effects and functional characteristics brought by the heat exchanging device in any one of the above embodiments.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "specifically," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange device, comprising:

a header;

2. The heat exchange device of claim 1, wherein: the heat pipe comprises an isolation belt, wherein the isolation belt divides the heat pipe into a first area and a second area, one of the first area and the second area is a release area, and the other one of the first area and the second area is a heated area; one of the header and the elbow is proximate the first region and one is proximate the second region.

3. The heat exchange device of claim 2, wherein: said first zone being a heated zone, said second zone being a released zone, said header being adjacent said first zone, said elbow being adjacent said second zone; the heat pipe comprises a heating section and a condensing section, wherein the heating section is located in the first area, and the condensing section is located in the second area.

4. The heat exchange device of claim 3, wherein: the heat pipe further comprises a heat insulation section, wherein the heat insulation section is arranged between the heating section and the condensation section, and the heat insulation section is positioned in the isolation belt.

5. The heat exchange device of claim 2, wherein: the heat pipe is arranged in the heat pipe, and the heat pipe is arranged in the heat receiving area.

6. The heat exchange device of claim 1, wherein: each elbow is detachably connected with every two adjacent heat pipes.

7. The heat exchange device of any one of claims 1 to 6, wherein: the heat pipe is a flat circular pipe or an elliptical pipe or a circular pipe or a semicircular pipe.

8. The heat exchange device of claim 1, wherein: the heat pipe heat exchanger comprises a plurality of heat exchange assemblies, wherein the heat exchange assemblies are arranged above the heat pipes.

9. The heat exchange device of claim 8, wherein: the heat exchange assembly is an aluminum fin or a heat exchange fin.

10. A lithium battery coating machine is characterized in that: comprising a heat exchange device according to any one of claims 1 to 9.