Gas heat recovery device based on heat pipe

Abstract

The utility model relates to a gas heat recovery device based on heat pipes, which comprises a shell with two open ends, an inner cavity of the shell is divided into an evaporation channel and a condensation channel through a heat insulation partition plate, a plurality of heat pipes are arranged on the heat insulation partition plate in a penetrating mode, and working media used for transferring heat are arranged in the heat pipes. The left half portion of the heat pipe is an evaporation pipe section located in the evaporation channel, and the right half portion of the heat pipe is a condensation pipe section located in the condensation channel. The heat exchanger has the advantages of being simple in structure, low in cost, convenient to disassemble and assemble, high in heat exchange efficiency and high in reliability.

Description

Technical Field

[0001] The utility model relates to a heat exchange device, in particular to a gas heat recovery device based on a heat pipe. Background Art

[0002] In the field of air conditioning and chemical industry, heat exchanger is a commonly used heat exchange equipment, usually used for heat exchange or heat recovery between gases or liquids at different temperatures to achieve energy saving and consumption reduction. Traditional heat exchangers are mainly partition-type heat exchangers, that is, cold and hot fluids flow on both sides of the partition wall, and heat exchange is carried out between the two through heat transfer through the partition wall. In practical applications, traditional heat exchangers have the problem of easy adhesion of dust, which affects the heat exchange efficiency. Once the partition wall leaks, the heat exchanger and even the entire system will not operate normally, affecting production efficiency and economic practicality. Utility Model Content

[0003] The utility model aims to provide a gas heat recovery device based on a heat pipe, which has the advantages of simple structure, low cost, convenient assembly and disassembly, high heat exchange efficiency and strong reliability.

[0004] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a gas heat recovery device based on a heat pipe, comprising a shell with openings at both ends, the inner cavity of the shell is divided into an evaporation channel and a condensation channel by an insulating partition, a plurality of heat pipes are passed through the insulating partition, a working medium is arranged in the heat pipe, the left half of the heat pipe is an evaporation pipe section in the evaporation channel, and the right half of the heat pipe is a condensation pipe section in the condensation channel.

[0005] Furthermore, the utility model provides a gas heat recovery device based on a heat pipe, wherein the heat pipe is arranged at an angle, and the end of the evaporation pipe section of the heat pipe is lower than the end of the condensation pipe section.

[0006] Furthermore, the utility model provides a gas heat recovery device based on a heat pipe, wherein connecting flanges are respectively provided at both ends of the shell, and a plurality of bolt holes are provided on the connecting flanges.

[0007] Furthermore, the utility model provides a gas heat recovery device based on a heat pipe, wherein a spray liquid distributor is provided in the condensation channel and at the upper side of the condensation pipe section, and a spray liquid collecting tank is provided in the condensation channel and at the lower side of the condensation pipe section. The spray liquid collecting tank is connected to the spray liquid distributor through a spray pipeline, and a spray lifting pump is provided on the spray pipeline.

[0008] Furthermore, the utility model provides a gas heat recovery device based on a heat pipe, wherein the shell is provided with a replenishing pipeline leading to a spray collecting tank, the replenishing pipeline is provided with a replenishing control valve, and the spray pipeline is provided with a spray control valve located on the upper side of a spray lifting pump.

[0009] Furthermore, the utility model provides a gas heat recovery device based on a heat pipe, wherein the heat pipes are arranged in layers on an insulating partition, each layer includes a plurality of heat pipes distributed at intervals, and the heat pipes of adjacent layers are staggered in the up and down directions.

[0010] Compared with the prior art, the utility model discloses a gas heat recovery device based on a heat pipe, which has the following advantages: the utility model discloses a shell with openings at both ends, and the inner cavity of the shell is divided into an evaporation channel and a condensation channel by an insulating partition, wherein a plurality of heat pipes are passed through the insulating partition, and a working medium is arranged in the heat pipe, the left half of the heat pipe is an evaporation pipe section in the evaporation channel, and the right half of the heat pipe is a condensation pipe section in the condensation channel. Thus, a gas heat recovery device based on a heat pipe is formed. In practical applications, the gas heat recovery device provided by the utility model is installed in the high-temperature gas duct and the low-temperature gas duct through the two ends of the evaporation channel and the condensation channel respectively. When the high-temperature gas and the low-temperature gas flow through the evaporation channel and the condensation channel respectively, the liquid working medium in the evaporation pipe section exchanges heat with the high-temperature gas, and the liquid working medium after absorbing heat evaporates into a gaseous working medium and enters the condensation pipe section, and the temperature of the high-temperature gas after heat release decreases; the gaseous working medium entering the condensation pipe section exchanges heat with the low-temperature gas, and the gaseous working medium after heat release condenses into a liquid working medium and enters the evaporation pipe section, and the temperature of the low-temperature gas after heat absorption increases. At this point, the working medium has completed an evaporation and condensation process, and the heat of the high-temperature gas is transferred to the low-temperature gas, thereby achieving the purpose of heat recovery. Compared with the prior art, the utility model uses an insulating partition to separate the inner cavity of the shell into an evaporation channel and a condensation channel, and arranges a heat pipe on the insulating partition for heat transfer, which improves the heat transfer efficiency and heat recovery effect on the one hand, and improves safety and reliability and reduces maintenance costs on the other hand. When a heat pipe is damaged, it only needs to be removed and replaced with a new heat pipe to continue to use it, solving the problem of the prior art that the heat exchanger cannot be used due to partition wall leakage; at the same time, the heat pipe will automatically vibrate during heat conduction, making it difficult for dust to adhere to the heat pipe, avoiding dust blockage, ensuring ventilation efficiency and heat transfer efficiency, and having the advantages of simple structure, low cost, easy disassembly and assembly, and strong practicality. It should be noted that according to demand, the recovered heat can be used in various occasions such as power heating, power generation and heating, and production of domestic hot water.

[0011] The following is a further detailed description of a gas heat recovery device based on a heat pipe of the utility model in conjunction with the specific implementation modes shown in the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view of a first embodiment of a gas heat recovery device based on a heat pipe of the utility model;

[0013] Figure 2 for Figure 1 AA view in the figure;

[0014] Figure 3 This is an axonometric diagram of a first embodiment of a gas heat recovery device based on a heat pipe according to the utility model;

[0015] Figure 4 It is a front view of a second embodiment of a gas heat recovery device based on a heat pipe according to the utility model. DETAILED DESCRIPTION

[0016] First of all, it should be explained that the directional words such as up, down, left, right, front and back described in the present invention are only described according to the drawings for the convenience of understanding, and are not intended to limit the technical solution of the present invention and the scope of protection requested.

[0017] like Figures 1 to 3 The utility model shows a first embodiment of a gas heat recovery device based on a heat pipe, wherein a shell 1 with openings at both ends is provided, and the inner cavity of the shell 1 is divided into an evaporation channel 11 and a condensation channel 12 by an insulating partition 2, and a plurality of heat pipes 3 are passed through the insulating partition 2, and a working medium is arranged in the heat pipe 3, wherein the left half of the heat pipe 3 is an evaporation pipe section 31 in the evaporation channel 11, and the right half of the heat pipe 3 is a condensation pipe section 32 in the condensation channel 12.

[0018] The above arrangement constitutes a gas heat recovery device based on a heat pipe. In practical applications, the gas heat recovery device provided by the utility model is correspondingly installed in the high-temperature gas duct and the low-temperature gas duct through the two ends of the evaporation channel 11 and the condensation channel 12. When the high-temperature gas and the low-temperature gas flow through the evaporation channel 11 and the condensation channel 12 respectively, the liquid working medium in the evaporation pipe section 31 exchanges heat with the high-temperature gas, and the liquid working medium after absorbing heat evaporates into a gaseous working medium and enters the condensation pipe section 32, and the temperature of the high-temperature gas after heat release decreases; the gaseous working medium entering the condensation pipe section 32 exchanges heat with the low-temperature gas, and the gaseous working medium after heat release condenses into a liquid working medium and enters the evaporation pipe section 31, and the temperature of the low-temperature gas after heat absorption increases. At this point, the working medium has completed an evaporation and condensation process, and the heat of the high-temperature gas is transferred to the low-temperature gas, thereby achieving the purpose of heat recovery. Compared with the prior art, the utility model uses an insulating partition 2 to separate the inner cavity of the shell 1 into an evaporation channel 11 and a condensation channel 12, and arranges a heat pipe 3 on the insulating partition 2 for heat transfer, which improves the heat transfer efficiency and heat recovery effect on the one hand, and improves safety and reliability and reduces maintenance costs on the other hand. When a heat pipe 3 is damaged, it only needs to remove the damaged heat pipe 3 and replace it with a new heat pipe 3 to continue using it, solving the problem of the prior art that the heat exchanger cannot be used due to partition wall leakage; at the same time, the heat pipe 3 will automatically vibrate during heat conduction, making it difficult for dust to adhere to the heat pipe, avoiding the phenomenon of dust blockage, ensuring ventilation efficiency and heat transfer efficiency, and having the advantages of simple structure, low cost, convenient disassembly and assembly, and strong practicality. It should be noted that the heat pipe is a prior art in the field, and its structure and working principle are well known to technicians; in order to facilitate installation and connection, the utility model is provided with connecting flanges 13 at both ends of the shell 1, and a plurality of bolt holes 14 are provided on the connecting flanges 13.

[0019] As an optimization scheme, in this specific embodiment, a spray liquid distributor 4 is provided in the condensation channel 12 and at the upper side of the condensation pipe section 32, a spray liquid collecting tank 5 is provided in the condensation channel 12 and at the lower side of the condensation pipe section 32, and the spray liquid collecting tank 5 is connected to the spray liquid distributor 4 through a spray pipeline 6, and a spray lifting pump 61 is provided on the spray pipeline 6. This structure is provided with a spray system consisting of a spray liquid distributor 4, a spray liquid collecting tank 5, a spray pipeline 6 and a spray lifting pump 61. When in use, the spray system is used to spray water or a salt solution onto the condensation pipe section 32, which can effectively improve the heat exchange efficiency and the condensation effect, and enhance the practicality. In order to facilitate the replenishment of the spray liquid (water or salt solution), the present embodiment is provided with a replenishment pipeline 7 leading to the spray liquid collecting tank 5 on the housing 1, and a replenishment control valve 71 is provided on the replenishment pipeline 7 for easy control. Similarly, the present embodiment is provided with a spray control valve 62 on the upper side of the spray lift pump 61 on the spray pipeline 6. In practical applications, in order to improve the spraying effect, the present utility model arranges the heat pipe 3 on the insulation partition 2 in a layered manner, wherein each layer includes a plurality of heat pipes 3 distributed at intervals, and the heat pipes 3 of adjacent layers are staggered in the vertical direction. This arrangement can ensure that the spray liquid is in full contact with the heat pipe 3.

[0020] like Figure 4 The second embodiment of the heat pipe-based gas heat recovery device of the utility model is shown. Different from the first embodiment, the heat pipe 3 is arranged in an inclined manner in the second embodiment, wherein the end of the evaporation pipe section 31 of the heat pipe 3 is lower than the end of the condensation pipe section 32. This arrangement allows the condensed working fluid to quickly flow back from the condensation pipe section 32 to the evaporation pipe section 31, thereby improving the evaporation and condensation effect and the heat recovery efficiency.

[0021] The above embodiments are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the protection scope of the present invention. Without departing from the design concept of the present invention, various modifications made by those skilled in the art based on the technical solution of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A gas heat recovery device based on a heat pipe, characterized in that: The invention comprises a shell (1) with openings at both ends, wherein the inner cavity of the shell (1) is divided into an evaporation channel (11) and a condensation channel (12) by a heat-insulating partition (2), a plurality of heat pipes (3) are arranged on the heat-insulating partition (2), a working medium is arranged in the heat pipe (3), the left half of the heat pipe (3) is an evaporation pipe section (31) located in the evaporation channel (11), and the right half of the heat pipe (3) is a condensation pipe section (32) located in the condensation channel (12).

2. A gas heat recovery device based on a heat pipe according to claim 1, characterized in that: The heat pipe (3) is arranged at an angle, and the end of the evaporation pipe section (31) of the heat pipe (3) is lower than the end of the condensation pipe section (32).

3. A gas heat recovery device based on a heat pipe according to claim 2, characterized in that: The two ends of the housing (1) are respectively provided with connecting flanges (13), and the connecting flanges (13) are provided with a plurality of bolt holes (14).

4. A gas heat recovery device based on a heat pipe according to claim 3, characterized in that: A spray liquid distributor (4) is provided in the condensation channel (12) and at an upper position of the condensation pipe section (32); a spray liquid collecting tank (5) is provided in the condensation channel (12) and at a lower position of the condensation pipe section (32); the spray liquid collecting tank (5) is connected to the spray liquid distributor (4) via a spray pipeline (6); and a spray lifting pump (61) is provided on the spray pipeline (6).

5. A gas heat recovery device based on a heat pipe according to claim 4, characterized in that: The shell (1) is provided with a liquid replenishment pipeline (7) leading to the spray liquid collecting tank (5), the liquid replenishment pipeline (7) is provided with a liquid replenishment control valve (71), and the spray pipeline (6) is provided with a spray control valve (62) located on the upper side of the spray lifting pump (61).

6. A gas heat recovery device based on a heat pipe according to claim 5, characterized in that: The heat pipes (3) are arranged in layers on the heat-insulating partition (2), each layer comprising a plurality of heat pipes (3) distributed at intervals, and the heat pipes (3) in adjacent layers are staggered in the vertical direction.

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