A heat preservation device using heat pipe for high efficiency heat conduction

Abstract

The application discloses a heat preservation device utilizing heat pipe high-efficiency heat conduction, and belongs to the technical field of energy chemical industry. The heat pipe component arranged in a concentric circle mode is the main component of the heating and heat preservation system, high-temperature fluid is used as the heat source of the heat pipe evaporation section in the evaporation cavity, low-temperature material fluid is used as the cold source of the heat pipe condensation section in the condensation cavity, and the heat is transferred from the evaporation section to the condensation section by phase change of the working medium in the heat pipe, so that the material in the microbial reactor is heated and preserved. The heat pipe can non-actively absorb or release heat according to the temperature change in the microbial reactor, the heating system and the heat preservation system are integrated, a safe, uniform and constant temperature environment is formed in the microbial reactor, each layer of the heat pipe works independently and does not affect each other, and thus the heating and heat preservation system of the microbial reactor is optimized, the temperature uniformity and reliability of the microbial reactor are improved, and the economic cost of the system is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of energy chemical industry, and relates to a heat preservation device using the heat pipe isothermal property and high-efficiency heat conduction. BACKGROUND

[0002] With the continuous development of the energy chemical industry field in China, the pharmaceutical industry, the food industry, the energy industry, the chemical industry and other production fields have put forward higher and higher requirements for the heat preservation system of the microbial fermentation device. Microbial fermentation refers to the process of using microorganisms to convert raw materials into products required by human beings through specific metabolic pathways under suitable conditions. For example, the process of producing methane by anaerobic fermentation of kitchen waste, the process of alcohol sterile fermentation, the process of organic fertilizer fermentation, etc. In addition to improving the fermentation temperature to the gas production peak point, a high-efficiency and stable microbial fermentation device production system must also maintain the temperature in the reactor constant. Therefore, the microbial fermentation device urgently needs a high-efficiency, economical, safe and reliable heating and heat preservation system. SUMMARY

[0003] Based on the development status of the heat preservation system of the traditional microbial fermentation device, the application provides a heat preservation device using the high-efficiency heat conduction of the heat pipe. The heat pipe is used to realize the non-active and high-efficiency heat transfer through the phase change and continuous circulation of the working medium in the heat pipe, so as to heat and preserve the materials of the microbial fermentation device. In addition, through the excellent isothermal property and concentric circle distribution of the heat pipe, the temperature change in the microbial fermentation device is not more than 1-2 DEG C, which guarantees the constant temperature of the system and saves the additional heat preservation system, thereby optimizing the heating and heat preservation system of the system, improving the isothermal property and reliability of the system and reducing the economic cost.

[0004] The application aims to overcome the defects of the prior art and provide a heat preservation device using the high-efficiency heat conduction of the heat pipe.

[0005] The microorganism reactor (1), the heat insulation layer (2), the protective layer (3), the header (4), the heat pipe evaporation cavity (5), the heat pipe evaporation section (6), the first ring heat pipe evaporation section (6-1), the second ring heat pipe evaporation section (6-2), the third ring heat pipe evaporation section (6-3), the heat pipe insulation section (7), the condensing cavity (8), the heat pipe condensing section (9), the first ring condensing section (9-1), the second ring condensing section (9-2), the third ring condensing section (9-3), the fixed partition (10), the first fixed partition (10-1), the second fixed partition (10-2), the residue outlet pipeline (11), the reaction liquid inlet pipeline (12), the reaction liquid inlet valve (13), the heat source inlet valve (14), the heat source outlet valve (15), the material inlet pipeline (16), the material inlet closure cover (17), the reaction liquid outlet pipeline (18), the reaction liquid outlet valve (19), the gas outlet pipeline (20), and the gas outlet valve (21) are composed.

[0006] The heat insulation layer (2) is close to the periphery of the microbial reactor (1), the protective layer (3) is close to the outside of the heat insulation layer (2), the header (4) is arranged on one side of the microbial reactor (1), the heat pipe evaporation section (6) is arranged in the heat pipe evaporation cavity (5) through the second fixed partition plate (10-2), the second fixed partition plate (10-2) is directly connected with the header (4), the first, second and third annular heat pipe evaporation sections (6-1, 6-2 and 6-3) are arranged in concentric circles and are perpendicular to the header (4), the heat pipe condensing section (9) is arranged in the condensing cavity (8) through the first fixed partition plate (10-1), the first fixed partition plate (10-1) is directly connected with the microbial reactor (1), the heat pipe heat insulation section (7) is provided with the heat insulation layer (2) and the protective layer (3), the heat pipe condensing section (9) is connected with the heat pipe heat insulation section (7) and the heat pipe evaporation section (6), the first, second and third annular condensing sections (9-1, 9-2 and 9-3) are arranged in concentric circles and are perpendicular to the microbial reactor (1), according to different heating and heat preservation requirements, a plurality of heat pipes can be arranged in the microbial reactor (1), the heat source inlet valve (14) is arranged at the lower part of the header (4), the heat source outlet valve (15) is arranged at the upper part of the header (4), the heat source circulation of the heat pipe evaporation section is formed, the residue outlet pipeline (11) is arranged at the lower left part of the microbial reactor (1), the reaction liquid inlet pipeline (12) is arranged at the lower right part of the microbial reactor (1), the reaction liquid outlet pipeline (18) is arranged at the top of the microbial reactor (1), the reaction liquid inlet valve (13) is connected with the reaction liquid inlet pipeline (12), the reaction liquid outlet valve (19) is connected with the reaction liquid outlet pipeline (18), the reaction liquid circulation stirring is formed, the material inlet sealing cover (17) is opened, the material is introduced into the microbial reactor (1) from the material inlet pipeline (16), the gas outlet pipeline (20) is arranged at the top of the microbial reactor (1), and the gas outlet valve (21) is connected with the gas outlet pipeline (20).

[0007] The stirring mode of the heat preservation device utilizing the high-efficiency heat conduction of the heat pipe is reaction liquid circulation stirring, so as to ensure that the heat pipe has sufficient arrangement space in the bed layer and the reaction liquid is fully stirred.

[0008] The heating and heat preservation system of the heat preservation device utilizing the high-efficiency heat conduction of the heat pipe is composed of the heat pipe components arranged in concentric circles, the heat pipe condensing section is arranged in the bed layer in the form of concentric circles, and the heat pipe evaporation section is arranged in the header in the form of concentric circles, so as to ensure the heat transfer efficiency.

[0009] The heat pipe of the heat preservation device utilizing the high-efficiency heat conduction of the heat pipe is a wick heat pipe, and the wick is a mesh type wick.

[0010] According to the fermentation process temperature, the medium in the heat pipe is water. The heat pipe material is stainless steel. The heat insulation material is asbestos, which is used to increase the thermal resistance and reduce the heat loss. The protective material is composed of aluminum foil, which is used to protect the heat insulation material, prevent fire, water, and moisture, and play an aesthetic role. The heat source fluid is hot water heated by the reaction liquid waste heat recovery system.

[0011] The beneficial effects of the present application: the heat pipe with concentric arrangement as a heating and insulation system of a heat pipe high-efficiency heat conduction insulation device, the high-temperature fluid in the evaporation cavity as the heat source of the heat pipe evaporation section convective heat transfer, the low-temperature material fluid in the condensation cavity as the cold source of the heat pipe condensation section convective heat transfer, and the phase change and continuous circulation of the working medium in the heat pipe to realize the heat transfer from the heat pipe evaporation section to the heat pipe condensation section, the material in the microbial fermentation device is heated and insulated, the endothermic and exothermic reactions in the microbial fermentation device occur alternately, the heat pipe can absorb heat or release heat passively according to the temperature change in the microbial fermentation device, the integrated heating system and insulation system work independently, and a high-efficiency, safe, reliable, and economical heating and insulation system is provided for the microbial fermentation device. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a schematic diagram of the cross section of the present application. Figure 1

[0013] Figure 1 is a schematic diagram of the cross section of the present application. Figure 1 Figure 1 is a schematic diagram of the cross section of the present application. Figure 1 is a schematic diagram of the cross section of the present application.

[0014] Figure 1 is a schematic diagram of the cross section of the present application. Figure 2 Figure 1 is a schematic diagram of the cross section of the present application.

[0015] Figure 1 is a schematic diagram of the cross section of the present application. Figure 2 Figure 1 is a schematic diagram of the cross section of the present application. DETAILED DESCRIPTION

[0016] AsFigure 1 As shown, the heat pipe high-efficiency heat conduction heat preservation device of the application mainly comprises: a microbial reactor 1, an insulation layer 2, a protective layer 3, a header 4, a heat pipe evaporation cavity 5, a heat pipe evaporation section 6, a heat pipe insulation section 7, a condensation cavity 8, a heat pipe condensation section 9, a fixed partition plate 10, a residue outlet pipeline 11, a reaction liquid inlet pipeline 12, a reaction liquid inlet valve 13, a heat source inlet valve 14, a heat source outlet valve 15, a material inlet pipeline 16, a material inlet sealing cover 17, a reaction liquid outlet pipeline 18, a reaction liquid outlet valve 19, a gas outlet pipeline 20, and a gas outlet valve 21.

[0017] The insulation layer (2) is tightly attached to the four sides of the microbial reactor (1), the protective layer (3) is tightly attached to the outer side of the insulation layer (2), the header (4) is placed on one side of the microbial reactor (1), the heat pipe evaporation section (6) is placed in the heat pipe evaporation cavity (5) through the second fixed partition plate (10-2), the second fixed partition plate (10-2) is directly connected with the header (4), the first, second and third annular heat pipe evaporation sections (6-1, 6-2 and 6-3) are arranged in concentric circles and are vertically arranged to the header (4), the heat pipe condensation section (9) is placed in the condensation cavity (8) through the first fixed partition plate (10-1), the first fixed partition plate (10-1) is directly connected with the microbial reactor (1), the heat pipe insulation section (7) is provided with the insulation layer (2) and the protective layer (3) on the surface, the heat pipe condensation section (9) is connected with the heat pipe insulation section (7) and the heat pipe evaporation section (6), the first, second and third annular condensation sections (9-1, 9-2 and 9-3) are arranged in concentric circles and are vertically arranged to the microbial reactor (1), according to different heating and heat preservation requirements, multiple heat pipes can be arranged in the microbial reactor (1), the heat source inlet valve (14) is placed at the lower part of the header (4), the heat source outlet valve (15) is placed at the upper part of the header (4), forming a heat source circulation of the heat pipe evaporation section, the residue outlet pipeline (11) is placed at the lower left part of the microbial reactor (1), the reaction liquid inlet pipeline (12) is placed at the lower right part of the microbial reactor (1), the reaction liquid outlet pipeline (18) is placed at the top of the microbial reactor (1), the reaction liquid inlet valve (13) is connected with the reaction liquid inlet pipeline (12), the reaction liquid outlet valve (19) is connected with the reaction liquid outlet pipeline (18), forming a reaction liquid circulation stirring, opening the material inlet sealing cover (17) to make the material enter the microbial reactor (1) from the material inlet pipeline (16), the gas outlet pipeline (20) is placed at the top of the microbial reactor (1), and the gas outlet valve (21) is connected with the gas outlet pipeline (20).

[0018] In the heat side loop, the heat source inlet valve (14) is opened, the high temperature fluid flows through the heat source inlet valve (14) under the driving of the heat side loop power, and then enters the heat pipe evaporation cavity (5) from the lower end of the header tank (4). After the high temperature fluid and the heat pipe evaporation section (6) exchange heat through convection heat transfer, the heat pipe evaporation section (6) absorbs heat, the temperature of the high temperature fluid decreases, and the high temperature fluid flows through the upper end of the header tank (4). The heat source outlet valve (15) is opened, and the high temperature fluid flows out through the heat source outlet valve (15).

[0019] In the heat pipe internal circulation, heat is transferred from the high temperature fluid in the evaporation cavity (5) to the liquid-vapor interface in the heat pipe evaporation section (6) through the heat pipe wall and the liquid-absorbing core filled with working liquid. The liquid evaporates on the liquid-vapor interface in the heat pipe evaporation section (6), the vapor generated in the heat pipe evaporation section (6) flows through the heat pipe adiabatic section (7) under a small pressure difference, and condenses on the vapor-liquid interface in the heat pipe condensation section (9). Heat is transferred from the vapor-liquid interface to the low temperature material fluid in the condensation cavity (8) through the liquid-absorbing core, the liquid and the pipe wall. The working medium in the heat pipe condensation section (9) flows back to the heat pipe evaporation section (6) along the porous material under the action of capillary force, and the cycle continues.

[0020] In the cold side loop, the material inlet closure cover (17) is opened, the low temperature material flows through the material inlet pipeline (16), and then enters the condensation cavity (8). The low temperature material fluid exchanges heat with the heat pipe condensation section (9) arranged in concentric circles through convection heat transfer. The heat pipe condensation section (9) releases heat, the temperature of the low temperature material fluid rises, and the temperature in the microbial reactor (1) is uniform, so that the temperature difference is not more than 1-2℃, which ensures the stability, continuity and temperature uniformity of the microbial reaction system.

[0021] In the reaction liquid circulation loop, the reaction liquid outlet valve (19) is opened, the circulating reaction liquid flows from the microbial reactor (1) through the reaction liquid outlet pipeline (18), and then enters the reaction liquid inlet valve (13) through the reaction liquid inlet pipeline (12) to enter the microbial reactor (1) again, forming reaction liquid circulation stirring, which ensures the inoculation and quality of the material of the microbial reaction system.

Claims

1. A heat preservation device with high efficiency heat conduction by heat pipe, characterized in that it is composed of a microbial reactor (1), an insulation layer (2), a protective layer (3), a header tank (4), a heat pipe evaporation cavity (5), a heat pipe evaporation section (6), a first annular heat pipe evaporation section (6-1), a second annular heat pipe evaporation section (6-2), a third annular heat pipe evaporation section (6-3), a heat pipe insulation section (7), a condensation cavity (8), a heat pipe condensation section (9), a first annular condensation section (9-1), a second annular condensation section (9-2), a third annular condensation section (9-3), a fixed partition (10), a first fixed partition (10-1), a second fixed partition (10-2), a residue outlet pipeline (11), a reaction liquid inlet pipeline (12), a reaction liquid inlet valve (13), a heat source inlet valve (14), a heat source outlet valve (15), a material inlet pipeline (16), a material inlet closure cover (17), a reaction liquid outlet pipeline (18), a reaction liquid outlet valve (19), a gas outlet pipeline (20), and a gas outlet valve (21).

2. The heat preservation device of claim 1, wherein the heat pipe evaporation section (6) is composed of a first annular heat pipe evaporation section (6-1), a second annular heat pipe evaporation section (6-2), and a third annular heat pipe evaporation section (6-3).

3. The heat preservation device of claim 1, wherein the heat pipe condensation section (9) is composed of a first annular condensation section (9-1), a second annular condensation section (9-2), and a third annular condensation section (9-3).

4. The heat preservation device of claim 1, wherein the fixed partition (10) is composed of a first fixed partition (10-1) and a second fixed partition (10-2). The heat insulation device comprises a microbial reactor (1), an adiabatic layer (2), a protective layer (3), a header tank (4), a heat pipe evaporation cavity (5), a heat pipe evaporation section (6), a heat pipe adiabatic section (7), a condensation cavity (8) and a heat pipe condensation section (9). The adiabatic layer (2) is tightly attached to the periphery of the microbial reactor (1), the protective layer (3) is tightly attached to the outer side of the adiabatic layer (2), the header tank (4) is arranged on one side of the microbial reactor (1), the heat pipe evaporation section (6) is arranged in the heat pipe evaporation cavity (5) through a second fixed partition (10-2), the second fixed partition (10-2) is directly connected with the header tank (4), the first, second and third annular heat pipe evaporation sections (6-1, 6-2 and 6-3) are arranged in concentric circles and are perpendicular to the header tank (4), the heat pipe condensation section (9) is arranged in the condensation cavity (8) through a first fixed partition (10-1), the first fixed partition (10-1) is directly connected with the microbial reactor (1), the heat pipe adiabatic section (7) is provided with the adiabatic layer (2) and the protective layer (3), the heat pipe condensation section (9) is connected with the heat pipe adiabatic section (7) and the heat pipe evaporation section (6), the first, second and third annular condensation sections (9-1, 9-2 and 9-3) are arranged in concentric circles and are perpendicular to the microbial reactor (1), according to different heating and heat preservation requirements, a plurality of heat pipes can be arranged in the microbial reactor (1), a heat source inlet valve (14) is arranged at the lower part of the header tank (4), a heat source outlet valve (15) is arranged at the upper part of the header tank (4), a heat source circulation of the heat pipe evaporation section is formed, a residue outlet pipeline (11) is arranged at the lower left part of the microbial reactor (1), a reaction liquid inlet pipeline (12) is arranged at the lower right part of the microbial reactor (1), a reaction liquid outlet pipeline (18) is arranged at the top of the microbial reactor (1), a reaction liquid inlet valve (13) is connected with the reaction liquid inlet pipeline (12), a reaction liquid outlet valve (19) is connected with the reaction liquid outlet pipeline (18), a reaction liquid circulation stirring is formed, a material inlet sealing cover (17) is opened, material is fed into the microbial reactor (1) from a material inlet pipeline (16), a gas outlet pipeline (20) is arranged at the top of the microbial reactor (1), and a gas outlet valve (21) is connected with the gas outlet pipeline (20). The heating and heat preservation system of the heat pipe high-efficiency heat conduction heat preservation device is composed of heat pipe components arranged in concentric circles, the heat pipe condensation section is arranged in the bed layer in a concentric circle form, and the heat pipe evaporation section is arranged in the header tank in a concentric circle form. The heat source fluid in the heat pipe high-efficiency heat conduction heat preservation device is hot water heated by a reaction liquid waste heat recovery system.

2. The heat pipe high-efficiency heat conduction heat preservation device according to claim 1, wherein the stirring mode is reaction liquid circulation stirring.

3. The heat pipe high-efficiency heat conduction heat preservation device according to claim 1, wherein the medium in the heat pipe is water.

4. The heat pipe high-efficiency heat conduction heat preservation device according to claim 1, wherein the heat pipe is a wick heat pipe, and the wick is a mesh type wick. ​ ​ ​ 5. The heat preservation device with high efficiency heat conduction by using heat pipe according to claim 1, characterized in that the material of the heat pipe is stainless steel.

6. The heat preservation device with high efficiency heat conduction by using heat pipe according to claim 1, characterized in that the heat insulation material is asbestos.

7. The heat preservation device with high efficiency heat conduction by using heat pipe according to claim 1, characterized in that the heat preservation material is aluminum foil. ​ ​ ​

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