WO2020103957A1

WO2020103957A1 - Efficient plate-tube-type heat exchanger

Info

Publication number: WO2020103957A1
Application number: PCT/CN2019/123125
Authority: WO
Inventors: 蒋伟楷
Original assignee: 广州市浩洋电子股份有限公司
Priority date: 2018-04-18
Filing date: 2019-12-04
Publication date: 2020-05-28
Also published as: CN209820234U

Abstract

An efficient plate-tube-type heat exchanger comprises a plate tube main body (1) and multiple heat dissipation tubes (2). The plate tube main body (1) is provided at one end or two ends of the heat dissipation tube (2). The plate tube main body (1) communicates with the heat dissipation tube (2), and a volatile liquid is provided in a communication cavity. The plate tube main body (1) is an evaporation end, and the heat dissipation tube (2) is a condensation end. A liquid suction core capillary structure (5) is provided on both an inner wall of the plate tube main body (1) and an inner wall of the heat dissipation tube (2). The plate tube main body (1) contacts a heat source, and absorbs heat from the heat source, such that the temperature rises, and the volatile liquid in the plate tube main body (1) absorbs heat, and evaporates; then, driven by vapor pressure, vapor carrying heat is transferred to the low-temperature heat dissipation tube (2), and contacts a tube wall; the gas releases heat and condenses such that the gas changes from a vapor to a liquid; and the liquid is transferred back to the plate tube main body (1) via the capillary structure (5), thereby completing a heat transfer cycle. This heat transfer cycle is repeated again and again to transfer heat continuously. The heat transfer is phase change heat transfer, such that a large amount of heat is carried during the heat transfer, and the transfer speed is high.

Description

High-efficiency plate and tube heat exchanger

Technical field

The utility model relates to the technical field of heat dissipation of stage lamps, and more particularly, to a high-efficiency plate and tube heat exchanger.

Background technique

When stage lamps are used, their light sources will generate a lot of heat. If these heats are not transferred in time and effectively, it will cause the temperature of the light source to rise sharply, and excessively high temperature will affect the use effect and life of the light source of the lamp. Therefore, how to quickly and efficiently perform heat exchange has become an important research topic in the heat dissipation design of stage lights.

technical problem

The purpose of the utility model is to overcome the shortcomings in the prior art, to provide an efficient plate and tube heat exchanger, which can continuously transfer heat and realize fast and efficient heat exchange.

Technical solution

In order to achieve the above purpose, the technical scheme adopted by the utility model is:

Provided is a high-efficiency plate tube heat exchanger, which includes a plate tube body and a plurality of heat dissipation tubes. The plate tube body is provided at one end or both ends of the heat dissipation tube. For liquid, the main body of the plate tube is the evaporation end and the heat dissipation tube is the condensing end; both the main body of the plate tube and the inner wall of the heat dissipation tube are provided with a liquid-absorbing capillary structure.

The volatile liquid is liquid such as water and ethanol; the capillary structure of the liquid absorbing core is provided with capillary holes.

In the above scheme, the body of the plate tube contacts the heat source and absorbs heat from the heat source, and the temperature rises. The volatile liquid in the body of the plate tube absorbs the heat and evaporates. Under the impulse of the steam pressure, the steam carrying the heat is transferred to the low-temperature heat pipe and In contact with the tube wall, the gas releases heat and condenses from a vapor state to a liquid state. The liquid is transferred back into the body of the plate tube through the capillary structure, thereby completing a heat transfer cycle. The heat cycle is repeated to continuously transfer heat, and the heat transfer is a phase Variable heat transfer, can carry more heat during heat transfer, and the transmission speed is faster.

Preferably, it also includes several fins arranged around the heat dissipation tube. The fins are superimposed on each other, which can increase the heat dissipation area and enhance heat transfer.

Preferably, the fin is provided with a first through hole, and the heat dissipation tube is penetrated through the first through hole. In this way, the heat dissipation tube is in close contact with the fins, reducing the heat transfer path and increasing the heat transfer speed.

Preferably, the fin is provided with a second through hole, the second through hole is provided with a fan, and the heat dissipation tube is provided around the second through hole. The fan can accelerate the flow rate of the cooling fluid to enhance convection heat transfer.

Further preferably, the fan is a centrifugal fan. In this way, the external ambient air can be sucked into the second through hole as much as possible, so as to increase the amount of cold air in contact with the heat dissipation tube, so as to facilitate rapid heat dissipation.

Preferably, the capillary structure of the plate tube main body, the heat dissipation tube and the liquid absorbing core is a metal structure or a ceramic structure. This setting makes the heat exchanger better in heat conductivity and facilitates efficient heat exchange.

Preferably, the heat dissipation tube is evenly arranged on the plate tube body. This setting is convenient for dissipating heat in time.

Preferably, the cavity formed by the body of the plate tube communicating with the heat dissipation tube is in a vacuum or low air pressure state. This arrangement not only reduces the liquid evaporation temperature, but also allows the liquid flow and gas flow to flow smoothly, thereby improving the heat exchange efficiency.

Preferably, the plate tube body is a hollow cylindrical structure; the tube length of the heat dissipation tube is greater than the tube length of the plate tube body. The plate tube body is set as a hollow cylindrical structure, which can increase the surface area of the plate tube body and the heat source to increase the amount of heat absorbed from the heat source; the length of each heat dissipation tube in the height direction is greater than the tube length of the plate tube body This setting makes the condensation path longer, which is convenient for improving the heat exchange effect.

Another object of the present invention is to provide a high-efficiency plate tube heat exchanger, which includes a plate tube body and a plurality of heat dissipation tubes. The plate tube body is provided at one end or both ends of the heat dissipation tube, and the plate tube body communicates with the heat dissipation tube and The cavity formed by the connection is provided with a volatile liquid, the main body of the plate tube is the condensing end, and the heat dissipation tube is the evaporation end; the inner wall of the main body of the plate tube and the heat dissipation tube is provided with a liquid-absorbing capillary structure.

In the above scheme, the heat dissipation tube contacts the heat source and absorbs heat from the heat source, and the temperature rises. The volatile liquid in the heat dissipation tube absorbs heat and evaporates. Under the steam pressure, the steam carrying the heat is transferred to the low temperature plate tube body and the tube When the wall contacts, the gas releases heat and condenses from a vapor state to a liquid state. The liquid is transferred back into the heat dissipation tube through the capillary structure, thereby completing a heat transfer cycle. The heat cycle is continuously repeated to continuously transfer heat, and the heat transfer is phase change heat transfer. It can carry more heat during heat transfer, and the transmission speed is faster.

Preferably, the cavity formed by the body of the plate tube communicating with the heat dissipation tube is in a vacuum or low air pressure state.

Preferably, the cross section of the plate tube body has a varying cross-sectional structure, and the cross section of the heat dissipation tube has a varying cross-sectional structure.

Preferably, it further includes a plurality of fins provided on the outer surface of the plate tube body.

Preferably, it also includes a fan provided on the outer surface of the plate tube body.

Beneficial effect

Compared with the prior art, the beneficial effects of the present invention are:

The utility model relates to an effective plate tube heat exchanger. When any one of the plate tube body and the heat dissipation tube is an evaporation end, the other correspondingly is a condensation end. The evaporation end contacts the heat source and absorbs heat from the heat source. The temperature rises and is located in the evaporation The volatile liquid in the end absorbs heat and evaporates. Under the impulse of steam pressure, the steam carrying the heat is transferred to the low-temperature condensing end and contacts the tube wall. The gas releases heat and condenses from the vapor state to the liquid state. The liquid passes through the capillary structure It is transferred back into the evaporation end to complete a heat transfer cycle. The heat cycle is repeated to continuously transfer heat, and the heat transfer is phase change heat transfer, which can carry more heat during heat transfer and the transfer speed is faster.

BRIEF DESCRIPTION

1 is a schematic diagram of a high-efficiency plate-and-tube heat exchanger according to Embodiment 1;

2 is a cross-sectional view of a high-efficiency plate and tube heat exchanger according to Embodiment 1, in which, for the sake of simplicity, only one heat dissipation tube is shown;

Figure 3 is a partially enlarged view of Figure 2;

4 is a schematic diagram of an assembled high-efficiency plate-and-tube heat exchanger, fins, and fan in Embodiment 1;

Figure 5 is an exploded view of Figure 4;

6 is a schematic diagram of a high-efficiency plate and tube heat exchanger of Example 2;

7 is a schematic diagram of an assembled high-efficiency plate and tube heat exchanger and fins of Example 2;

8 is a schematic diagram of a high-efficiency plate-and-tube heat exchanger according to Embodiment 3;

9 is a cross-sectional view of a high-efficiency plate and tube heat exchanger of Embodiment 3. FIG.

Best Mode of the Invention

实施例Examples 11

This embodiment of an efficient plate and tube heat exchanger, as shown in FIGS. 1 to 3, includes a plate and tube body 1 and a number of heat dissipation tubes 2. The plate and tube body 1 is provided at one or both ends of the heat dissipation tube 2 The main body 1 communicates with the heat dissipation tube 2 and a cavity formed therebetween is provided with a volatile liquid, the plate tube main body 1 is an evaporation end, and the heat dissipation tube 2 is a condensation end; both the inner walls of the plate tube body 1 and the heat dissipation tube 2 are provided with a liquid-absorbing core Capillary structure 5.

The volatile liquid is liquid such as water and ethanol; the capillary structure 5 of the liquid absorbing core is provided with capillary holes.

When using this heat exchanger, the heat source is placed close to the plate tube body 1. The plate tube body 1 absorbs heat from the heat source, and the temperature rises. The volatile liquid in the plate tube body 1 absorbs the heat and evaporates. The steam with heat is transferred to the low-temperature heat dissipation tube 2 and is in contact with the wall. The gas releases heat and condenses from the vapor state into a liquid state. The liquid is transmitted back to the plate tube body 1 through the capillary structure 3, thereby completing a heat transfer cycle. The cycle repeats continuously to continuously transfer heat, and the heat transfer is phase change heat transfer, which can carry more heat during heat transfer and the transfer speed is faster.

Among them, as shown in FIGS. 4 and 5, it also includes a plurality of fins 3 disposed around the heat dissipation tube 2. The fins 3 are superimposed on each other. This arrangement can increase the heat dissipation area and enhance heat transfer.

In this embodiment, the fin 3 is provided with a first through hole 31, and the heat dissipation tube 2 is penetrated through the first through hole 31. This arrangement makes the heat dissipation tube 2 and the fins 3 closely contact, reducing the heat transfer path and increasing the heat transfer speed.

In addition, the fin 3 is provided with a second through hole 32, a fan 4 is provided in the second through hole 32, and the heat dissipation tube 2 is provided around the second through hole 32. The fan 4 can accelerate the flow rate of the cooling fluid to enhance convection heat exchange.

In this embodiment, the fan 4 is a centrifugal fan. In this way, the external ambient air can be drawn into the second through hole 32 as much as possible, so as to increase the amount of cold air in contact with the heat dissipation tube 2 and facilitate rapid heat dissipation.

Among them, the plate tube main body 1, the heat dissipation tube 2 and the wick core structure 5 are metal structures or ceramic structures. This setting makes the heat exchanger better in heat conductivity and facilitates efficient heat exchange.

In addition, the heat dissipation tube 2 is uniformly provided on the plate tube body 1. This setting is convenient for dissipating heat in time.

The cavity formed by the communication between the plate tube body 1 and the heat dissipation tube 2 is in a vacuum or low air pressure state. This arrangement not only reduces the liquid evaporation temperature, but also allows the liquid flow and gas flow to flow smoothly, thereby improving the heat exchange efficiency.

In addition, the plate tube body 1 has a hollow cylindrical structure; the tube length of the heat dissipation tube 2 is greater than the tube length of the plate tube body 1. Setting the plate tube body 1 as a hollow cylindrical structure can increase the surface area of the plate tube body 1 in contact with the heat source to increase the amount of heat absorbed from the heat source; the length of each heat dissipation tube 2 in the height direction is greater than the plate tube body The tube length of 1, this setting makes the condensation path longer, which is convenient for improving the heat exchange effect.

Embodiments of the invention

实施例Examples 22

As shown in FIGS. 6 to 7, the difference between Example 2 and Example 1 is that: the plate tube body 1 in Example 1 has a circular structure, and the plate tube body 1 in Example 3 has a circular structure as a whole; Example 1 There is a fan 4 in it, and there is no fan 4 in Example 2.

Example 3

This embodiment provides an efficient plate and tube heat exchanger. As shown in FIGS. 8 to 9, it includes a plate and tube body 1 and several heat dissipation tubes 2. The plate and tube body 1 is provided at one or both ends of the heat dissipation tube 2. The tube body 1 communicates with the heat dissipation tube 2 and a cavity formed therebetween is provided with a volatile liquid, the plate tube body 1 is the condensing end, and the heat dissipation tube 2 is the evaporation end; both the inner walls of the plate tube body 1 and the heat dissipation tube 2 are provided with liquid suction Core capillary structure 5. In this embodiment, one heat dissipation tube 2 is provided on the plate tube body 1.

The difference between Embodiment 3 and Embodiment 1 is that in Embodiment 3 the plate tube body 1 is the condensation end, and the heat dissipation tube 2 is the evaporation end.

When the heat exchanger is used, the heat source is placed close to the heat dissipation tube 2. The heat dissipation tube 2 absorbs heat from the heat source, and the temperature rises. The volatile liquid in the heat dissipation tube 2 absorbs heat and evaporates. The steam is transferred to the low-temperature plate tube body 1 and contacts the tube wall. The gas releases heat and condenses from the vapor state into a liquid state. The liquid is transferred back into the heat dissipation tube 2 through the capillary structure 3, thereby completing a heat transfer cycle, which repeats continuously. The heat is transferred continuously, and the heat transfer is phase change heat transfer, which can carry more heat during heat transfer and the transmission speed is faster.

The cavity formed by the communication between the plate tube body 1 and the heat dissipation tube 2 is in a vacuum or low air pressure state.

In addition, the cross section of the plate tube main body 1 has a varying cross-sectional structure, and the cross section of the heat dissipation tube 2 has a varying cross-sectional structure.

Among them, a plurality of fins 3 provided on the outer surface of the plate tube body 1 are also included. One end of all the fins 3 is in contact with the bottom of the outer surface of the plate tube body 1. In this embodiment, all the fins 3 are arranged parallel and perpendicular to the bottom of the outer surface of the plate tube body 1.

In addition, it also includes a fan 4 provided on the outer surface of the plate tube body 1.

Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, other different forms of changes or changes can be made based on the above description. There is no need to exhaustively list all implementations. Any modification, equivalent replacement and improvement made within the spirit and principle of this utility model should be included in the protection scope of the claims of this utility model.

Claims

A high-efficiency plate and tube heat exchanger is characterized by comprising a plate and tube body (1) and a number of heat dissipation tubes (2). The plate and tube body (1) is provided at one or both ends of the heat dissipation tube (2). The main body (1) communicates with the heat dissipation tube (2) and the cavity formed by the communication is provided with a volatile liquid, the plate tube main body (1) is the evaporation end, and the heat dissipation tube (2) is the condensation end; the plate tube body (1) and the heat dissipation The inner wall of the tube (2) is provided with a wick structure (5).
The high-efficiency plate and tube heat exchanger according to claim 1, further comprising a plurality of fins (3) arranged around the heat dissipation tube (2).
The high-efficiency plate and tube heat exchanger according to claim 2, characterized in that the fin (3) is provided with a first through hole (31), and the heat dissipation tube (2) is penetrated through the first through hole (31) )Inside.
An efficient plate and tube heat exchanger according to claim 2, characterized in that the fin (3) is provided with a second through hole (32), and a fan (4) is provided in the second through hole (32) The heat dissipation tube (2) is provided around the second through hole (32).
The high-efficiency plate and tube heat exchanger according to claim 1, characterized in that the plate and tube body (1), the heat dissipation tube (2) and the wick structure (5) are metal structures or ceramic structures; or heat dissipation The tube (2) is evenly arranged on the plate tube body (1).
The high-efficiency plate and tube heat exchanger according to claim 1, characterized in that the cavity formed by the plate and tube body (1) communicating with the heat dissipation tube (2) is in a vacuum or low air pressure state.
A high-efficiency plate and tube heat exchanger according to claim 1, characterized in that the plate and tube body (1) is a hollow cylindrical structure; the length of each heat dissipation tube (2) in the height direction is greater than that of the plate and tube body (1) The length of the tube.
A high-efficiency plate and tube heat exchanger is characterized by comprising a plate and tube body (1) and a number of heat dissipation tubes (2). The plate and tube body (1) is provided at one or both ends of the heat dissipation tube (2). The main body (1) communicates with the heat dissipation tube (2) and the cavity formed by the communication is provided with a volatile liquid, the plate tube main body (1) is the condensing end, the heat dissipation tube (2) is the evaporation end; the plate tube main body (1) and the heat dissipation The inner wall of the tube (2) is provided with a wick structure (5).
The high-efficiency plate and tube heat exchanger according to claim 8, characterized in that the cavity formed by the plate and tube body (1) communicating with the heat dissipation tube (2) is in a vacuum or low air pressure state.
The high-efficiency plate and tube heat exchanger according to claim 8, characterized in that the cross section of the plate and tube body (1) has a varying cross-sectional structure, and the cross section of the heat dissipating tube (2) has a varying cross-sectional structure.
The high-efficiency plate and tube heat exchanger according to claim 8, characterized in that it further comprises a plurality of fins (3) provided on the outer surface of the plate and tube body (1).
The high-efficiency plate and tube heat exchanger according to claim 8, further comprising a fan (4) provided on the outer surface of the plate and tube body (1).

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