CN216645025U - Safety gravity heat pipe heat exchanger - Google Patents
Safety gravity heat pipe heat exchanger Download PDFInfo
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- CN216645025U CN216645025U CN202220059896.0U CN202220059896U CN216645025U CN 216645025 U CN216645025 U CN 216645025U CN 202220059896 U CN202220059896 U CN 202220059896U CN 216645025 U CN216645025 U CN 216645025U
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Abstract
The utility model relates to the technical field of energy waste heat recovery, in particular to a safe gravity assisted heat pipe exchanger which comprises an evaporation section shell, a condensation section shell and a heat insulation section shell, wherein a plurality of condensation section heat pipes are arranged in the condensation section shell; a plurality of evaporation section heat pipes are arranged in the evaporation section shell, a lower pipe plate is welded at the top of the evaporation section shell through an evaporation section equipment flange, a heat source inlet is formed in the upper part of the evaporation section shell, a heat source outlet is formed in the lower part of the evaporation section shell, and evaporation section baffle plates are arranged between the heat source inlet and the heat source outlet at intervals; the heat insulation section shell is respectively connected with the condensation section heat pipe and the evaporation section heat pipe in a header type in a welding mode through an upper pipe plate and a lower pipe plate. The beneficial effects of the utility model are: the heat source heat pump is safe in type, convenient to maintain and suitable for various heat source working conditions.
Description
Technical Field
The utility model relates to the technical field of energy waste heat recovery such as metallurgy, petroleum, chemical engineering, power and the like, in particular to a safe gravity heat pipe exchanger.
Background
The heat pipe is a closed pipe or cylinder body as a shell, the geometric shape has no special requirements, and the shell is vacuumized and then filled with a proper amount of working medium (liquid) to be closed. As the heat transfer element with extremely high heat conduction performance, the heat pipe has the advantages of simple structure and high heat exchange efficiency, and has less metal consumption, pressure loss and power consumption under the condition of transferring the same heat, the heat pipe can be rapidly applied to the industrial fields of petrifaction, metallurgy and the like after coming out, and has good application prospect.
The heat pipe that returns the condensate by gravity is called a gravity heat pipe, and in order to return the condensate, the condensation section of the gravity heat pipe must be higher than the evaporation section.
The existing gravity heat pipe exchanger consists of a shell, a heat pipe bundle, a partition plate and a cold and hot fluid inlet and outlet, wherein the heat pipe is diversified in type, the heat pipe arrangement can be triangular or square, the heat pipe bundle is fixed on the central partition plate, and the central partition plate separates cold and hot fluids into two channels of hot fluid and cold fluid. The existing gravity heat pipe heat exchanger is in a type of a heat pipe with two closed ends, and the heat pipe crosses through a central clapboard, so that the cleaning of the interior of the heat pipe is not facilitated; and once the existing connection type of the heat pipe and the partition plate fails, cold fluid and hot fluid flow in series, if the fluid is extremely harmful, explosive or mixed and generates chemical reaction, the potential safety hazard is large, and the risk of the hazard is high. Therefore, a gravity heat pipe type heat exchanger with safer structure and easy cleaning and maintenance is needed.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: overcomes the defects in the prior art and provides a gravity heat pipe heat exchanger which is safe in type and convenient and fast to maintain.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a safe gravity heat pipe exchanger comprises an evaporation section shell, a condensation section shell and a heat insulation section shell, wherein a plurality of condensation section heat pipes are arranged in the condensation section shell, the bottom of the condensation section shell is welded on an upper pipe plate through a condensation section equipment flange, a cold source inlet is arranged at the lower part of the condensation section shell, a cold source outlet is arranged at the upper part of the condensation section shell, a condensation section baffle plate is arranged between the cold source inlet and the cold source outlet at intervals, the condensation section baffle plate is fixed in an inner cavity of the condensation section shell through a plurality of condensation section pull rods and distance pipes, one end of each condensation section pull rod is connected with the upper pipe plate, and the other end of each condensation section pull rod is connected with the condensation section baffle plate; the evaporation section shell is internally provided with a plurality of evaporation section heat pipes, the top of the evaporation section shell is welded on the lower tube plate through an evaporation section equipment flange, the upper part of the evaporation section shell is provided with a heat source inlet, the lower part of the evaporation section shell is provided with a heat source outlet, the relative positions of the heat source inlet and the heat source outlet can be adjusted according to specific application, evaporation section baffle plates are arranged between the heat source inlet and the heat source outlet at intervals, the evaporation section baffle plates are fixed in the inner cavity of the evaporation section shell through a plurality of evaporation section pull rods and distance pipes, one end of each evaporation section pull rod is connected with the lower tube plate, and the other end of each evaporation section pull rod is connected with the evaporation section baffle plate; the shell of the heat insulation section is respectively connected with the heat pipe of the condensation section and the heat pipe of the evaporation section in a welding way through an upper pipe plate and a lower pipe plate to form a header type.
Furthermore, the number of the condensation section pull rods is at least three.
Furthermore, the number of the evaporation section pull rods is at least three.
Furthermore, the bottom of the evaporation section shell is provided with an evaporation section sewage outlet.
Furthermore, a condensation section exhaust port is formed in the upper end of the condensation section shell.
Furthermore, a temperature measuring port and a pressure measuring port are respectively arranged on the heat source inlet and the heat source outlet.
Furthermore, a temperature measuring port and a pressure measuring port are respectively arranged on the cold source inlet and the cold source outlet.
Further, a pressure gauge is arranged on the side wall of the shell of the heat insulation section.
Furthermore, the shell of the heat insulation section is respectively provided with a temperature measuring port and a pressure measuring port.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the evaporation section shell and the lower tube plate, the condensation section shell and the upper tube plate are detachably connected, so that the outer side of the heat pipe is convenient to clean, and the equipment is convenient to maintain.
(2) Compared with a horizontal heat pipe heat exchanger, the gravity heat pipe heat exchanger has the advantages that the cold and heat sources and the medium in the heat pipe are in counter flow, and the cold and heat sources are baffled by arranging the evaporation section baffle plate and the condensation section baffle plate, so that the heat exchange efficiency is improved.
(3) The condensing section, the evaporating section heat pipe and the upper and lower pipe plates can adopt various connection modes, and are suitable for various working medium working conditions.
(4) Different tube plates are adopted on the cold and heat source sides, different tube distribution forms, different heat pipe types and different heat pipe materials can be adopted on the cold and heat source sides, and the heat pipe type heat exchanger is suitable for various heat source working conditions.
(5) The heat source is gas, the cold source is liquid, the difference of the heat transfer coefficients of the gas and the liquid is large, and the evaporation section heat pipe is more convenient when the heat exchange coefficient needs to be enhanced.
(6) When the waste heat of the flue gas is utilized, the outer side of the heat pipe at the evaporation section is frequently sucked and swept, the dust accumulation on the heating surface is reduced, and the heat exchange efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model without limiting the utility model in which:
FIG. 1 is a schematic structural diagram of a gravity assisted heat pipe heat exchanger according to an embodiment of the present invention;
in the figure, 1, an evaporation section shell; 2. an evaporation section heat pipe; 3. a heat source inlet; 4. a heat source outlet; 5. an evaporation section equipment flange; 6. a baffle plate at the evaporation section; 7. a drain outlet of the evaporation section; 8. a condenser section shell; 9. a condensing section heat pipe; 10. a cold source inlet; 11. a cold source outlet; 12. a condensing section equipment flange; 13. a condensing section baffle plate; 14. a condensing section exhaust port; 15. a thermally insulated section housing; 16. an upper tube sheet; 17. a lower tube plate; 18. a pressure gauge; 19. a temperature measuring port; 20. and a pressure measuring port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a gravity assisted heat pipe heat exchanger, including an evaporation section casing 1, a condensation section casing 8 and a heat insulation section casing 15, wherein a plurality of condensation section heat pipes 9 are arranged inside the condensation section casing 8, an upper pipe plate 16 is welded at the bottom through a condensation section equipment flange 12, a cold source inlet 10 is arranged at the lower part of the condensation section casing 8, a cold source outlet 11 is arranged at the upper part of the condensation section casing 8, a condensation section baffle 13 is arranged between the cold source inlet 10 and the cold source outlet 11 at intervals, the condensation section baffle 13 is fixed in the inner cavity of the condensation section casing 8 through a plurality of condensation section pull rods and distance pipes, one end of each condensation section pull rod is connected with the upper pipe plate 16, and the other end is connected with the condensation section baffle 13; the heat pipe heat exchanger is characterized in that a plurality of evaporation section heat pipes 2 are arranged in the evaporation section shell 1, a lower pipe plate 17 is welded at the top of the evaporation section shell through an evaporation section equipment flange 5, a heat source inlet 3 is arranged at the upper part of the evaporation section shell 1, a heat source outlet 4 is arranged at the lower part of the evaporation section shell, evaporation section baffle plates 6 are arranged between the heat source inlet 3 and the heat source outlet 4 at intervals, the evaporation section baffle plates 6 are fixed in the inner cavity of the evaporation section shell 1 through a plurality of evaporation section pull rods and distance pipes, one end of each evaporation section pull rod is connected with the lower pipe plate 17, and the other end of each evaporation section pull rod is connected with the evaporation section baffle plates 6. The upper tube plate 16 and the lower tube plate 17 are independently provided with heat exchange surfaces convenient for the two sides of cold and hot fluid to be freely arranged, the evaporation section shell 1 and the lower tube plate 17 as well as the condensation section shell 8 and the upper tube plate 16 are detachably connected, the outside of the heat pipe is convenient to clean, and the equipment is convenient to maintain.
The connection modes of the condensation section heat pipe 9 and the evaporation section heat pipe 2 and the upper tube plate 16 and the lower tube plate 17 are selected according to working medium working conditions, the heat source is highly harmful media and has a tendency of gapped corrosion, the evaporation section heat pipe 2 and the lower tube plate 17 can adopt a strength welding and sticking expansion mode, and the strength welding effectively ensures the strength of a welding joint and avoids leakage risks of joint failure media. The heat pipe is attached to the pipe plate to expand, so that the gap is effectively eliminated, and a medium cannot permeate into the gap between the heat pipe and the plate to avoid gap corrosion.
The condensing section heat pipe 9 and the evaporating section heat pipe 2 are arranged in a pipe collecting mode, different pipe plates are adopted on the cold and hot source sides, different pipe distribution forms, different heat pipe types and different heat pipe materials can be adopted on the cold and hot source sides, and the heat pipe type evaporator is suitable for various heat source working conditions.
The shell 15 of the heat insulation section is respectively connected with the heat pipe 9 of the condensation section and the heat pipe 2 of the evaporation section in a header type by an upper pipe plate 16 and a lower pipe plate 17 in a welding way. The welding structure of the upper tube plate 16, the lower tube plate 17 and the heat insulation section shell 15 is safe and reliable, is suitable for various heat pipe working media, and is suitable for the working conditions of low, medium and high temperature heat sources.
Compared with a horizontal heat pipe heat exchanger, the gravity heat pipe heat exchanger has the advantages that the cold and heat sources and the medium are in counter flow, and the cold and heat sources are baffled by arranging the evaporation section baffle plate 6 and the condensation section baffle plate 13, so that the heat exchange efficiency is improved.
In one embodiment, the number of the condenser end pull rods is at least three, and the number of the condenser end pull rods is adjusted according to the device condition so as to firmly connect the condenser end baffle 13.
In one embodiment, the number of the evaporation section pull rods is at least three, and the number of the evaporation section pull rods is adjusted according to the situation of the device so as to firmly connect the evaporation section baffle 6.
In one embodiment, the bottom of the evaporation section shell 1 is provided with an evaporation section sewage outlet 7.
In one embodiment, the upper end of the condenser end shell 8 is provided with a condenser end exhaust port 14.
In one embodiment, the heat source inlet 3 and the heat source outlet 4 are respectively provided with a temperature measuring port and a pressure measuring port, and a monitoring port is added, so that the temperature and the pressure inside the evaporation section heat pipe 2 can be conveniently monitored.
In one embodiment, the cold source inlet 10 and the cold source outlet 11 are respectively provided with a temperature measuring port and a pressure measuring port, and a monitoring port is added, so that the temperature and the pressure inside the condensation section heat pipe 9 can be conveniently monitored.
In one embodiment, the side wall of the casing 15 of the thermal insulation section is provided with a pressure gauge 18 for displaying the pressure inside the casing 15 of the thermal insulation section in real time.
In one embodiment, the thermal insulation section shell 15 is respectively provided with a temperature measuring port 19 and a pressure measuring port 20, and a monitoring port is added, so that the temperature and the pressure of the working medium in the thermal insulation section shell 15 can be monitored conveniently.
When the heat source evaporator works, a heat source enters the evaporation section shell 1 from the heat source inlet 3, the evaporation section baffle plate 6 guides the flow path direction of the heat source, when the heat source flows through the evaporation section heat pipe 2, working medium liquid in the heat pipe absorbs heat from the heat source to be vaporized, and vaporized steam flows to the condensation section heat pipe 9 through the heat insulation section shell 15 at a high speed under the micro-negative pressure working pressure. The cold source enters the condensation section shell 8 from the cold source inlet 10, the condensation section baffle 13 guides the flow path direction of the cold source, when the cold source flows through the condensation section heat pipe 9, steam in the condensation section heat pipe 9 emits latent heat of vaporization to the cold source working medium and condenses into liquid, and the condensed liquid flows through the heat insulation section shell 15 from the condensation section shell 8 under the action of gravity and then returns to the evaporation section shell 1, so that a cycle is completed. The circulation is not stopped, the heat of the heat source is continuously transferred to the heat pipe 9 of the condensation section from the heat pipe 2 of the evaporation section and is discharged to the working medium of the cold source, and the working medium of the cold source can heat and raise the temperature. During the whole cycle work, the processes of evaporation of working medium liquid, upward flow of steam, steam condensation and condensate backflow are carried out in the gravity heat pipe heat exchanger, and the processes form the closed cycle of working medium work in the gravity heat pipe heat exchanger.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A safe gravity heat pipe exchanger is characterized in that: the heat exchanger comprises an evaporation section shell (1), a condensation section shell (8) and a heat insulation section shell (15), wherein a plurality of condensation section heat pipes (9) are arranged in the condensation section shell (8), an upper tube plate (16) is welded at the bottom of the condensation section shell through a condensation section equipment flange (12), a cold source outlet (11) is arranged at the upper part of the condensation section shell (8), a cold source inlet (10) is arranged at the lower part of the condensation section shell, a condensation section baffle plate (13) is arranged between the cold source inlet (10) and the cold source outlet (11) at intervals, the condensation section baffle plate (13) is fixed in the inner cavity of the condensation section shell (8) through a plurality of condensation section pull rods and distance tubes, one ends of the condensation section pull rods are connected with the upper tube plate (16), and the other ends of the condensation section pull rods are connected with the condensation section baffle plate (13); a plurality of evaporation section heat pipes (2) are arranged in the evaporation section shell (1), a lower tube plate (17) is welded at the top through an evaporation section equipment flange (5), a heat source inlet (3) is arranged at the upper part of the evaporation section shell (1), a heat source outlet (4) is arranged at the lower part of the evaporation section shell, evaporation section baffle plates (6) are arranged between the heat source inlet (3) and the heat source outlet (4) at intervals, the evaporation section baffle plates (6) are fixed in the inner cavity of the evaporation section shell (1) through a plurality of evaporation section pull rods and spacing tubes, one end of each evaporation section pull rod is connected with the lower tube plate (17), and the other end of each evaporation section pull rod is connected with the evaporation section baffle plate (6); the heat insulation section shell (15) is respectively connected with the condensation section heat pipe (9) and the evaporation section heat pipe (2) in a header type in a welding mode through the upper pipe plate (16) and the lower pipe plate (17).
2. The secure gravity heat pipe exchanger of claim 1, wherein: the number of the condensation section pull rods is at least three.
3. The secure gravity heat pipe exchanger of claim 1, wherein: the number of the evaporation section pull rods is at least three.
4. The secure gravity heat pipe heat exchanger of claim 1, wherein: an evaporation section sewage draining outlet (7) is arranged at the bottom of the evaporation section shell (1).
5. The secure gravity heat pipe exchanger of claim 1, wherein: and a condensing section exhaust port (14) is formed in the upper end of the condensing section shell (8).
6. The secure gravity heat pipe exchanger of claim 1, wherein: and the heat source inlet (3) and the heat source outlet (4) are respectively provided with a temperature measuring port and a pressure measuring port.
7. The secure gravity heat pipe exchanger of claim 1, wherein: and the cold source inlet (10) and the cold source outlet (11) are respectively provided with a temperature measuring port and a pressure measuring port.
8. The secure gravity heat pipe exchanger of claim 1, wherein: and a pressure gauge (18) is arranged on the side wall of the heat insulation section shell (15).
9. The secure gravity heat pipe exchanger of claim 1, wherein: the shell (15) of the heat insulation section is respectively provided with a temperature measuring port (19) and a pressure measuring port (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220059896.0U CN216645025U (en) | 2022-01-11 | 2022-01-11 | Safety gravity heat pipe heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220059896.0U CN216645025U (en) | 2022-01-11 | 2022-01-11 | Safety gravity heat pipe heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216645025U true CN216645025U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220059896.0U Active CN216645025U (en) | 2022-01-11 | 2022-01-11 | Safety gravity heat pipe heat exchanger |
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| Country | Link |
|---|---|
| CN (1) | CN216645025U (en) |
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2022
- 2022-01-11 CN CN202220059896.0U patent/CN216645025U/en active Active
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