CN216558407U - Miniature small air flow heat exchanger - Google Patents
Miniature small air flow heat exchanger Download PDFInfo
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- CN216558407U CN216558407U CN202123078603.8U CN202123078603U CN216558407U CN 216558407 U CN216558407 U CN 216558407U CN 202123078603 U CN202123078603 U CN 202123078603U CN 216558407 U CN216558407 U CN 216558407U
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Abstract
The utility model discloses a miniature small airflow heat exchanger, and relates to the technical field of natural gas transmission and distribution pipe network equipment. The vortex tube assembly comprises an outer valve body, a start-up assembly, a vortex tube and a lower cover, wherein the start-up assembly and the lower cover are respectively assembled at two ends of the outer valve body; a gas inlet joint is arranged on the screwing-up assembly, a temperature adjusting block is assembled in the lower cover, and a high-temperature gas outlet joint is arranged on the lower cover; the outer valve body is provided with a gas inlet joint to be heated and a heated gas outlet joint. The utility model adopts two air flows, the first air flow generates heat through the vortex tube effect, and the purpose of heating the air is achieved after the first air flow is fully contacted with the second air flow through the heating of the wall of the vortex tube, thereby realizing the purpose of heating the trace high-pressure process air in the pilot valve pipeline. Can heat gas efficiently and quickly, and can ensure super-long service life.
Description
Technical Field
The utility model relates to the technical field of natural gas transmission and distribution pipe network equipment, in particular to a miniature small airflow heat exchanger.
Background
With the rapid development of economy in China, natural gas is increasingly widely applied in the aspects of industry and civilian use, long-distance pipeline distribution, regional gas supply, high-pressure LNG pressure reduction and the like, temperature reduction caused by high-pressure reduction leads the temperature of pipeline gas to be lower than the dew point temperature to generate water for analysis, and even low-temperature icing leads throttling pressure reduction equipment to generate ice blockage, thereby causing equipment failure.
In order to improve the absolute safety of the use of the gas pressure regulating equipment, the gas for the pilot valve of the high-pressure natural gas throttling equipment is heated to reach the expected use temperature, and the requirement of the pressure regulating metering equipment on the temperature is met. A heater is generally provided in the pilot valve air pipe to heat the pilot valve air. The existing heaters comprise electric heaters, water bath heaters and the like which need external heating sources, and the heaters need external energy sources such as electricity and the like, so that the installation and the maintenance are troublesome.
The utility model discloses a pipeline heat exchange unit and a heat exchanger, wherein the publication date is 2021, 1 month and 15 days, the publication number is CN112229062A, and the name is 'pipeline heat exchange unit and heat exchanger', the utility model patent application discloses the pipeline heat exchange unit and the heat exchanger, the heat exchange unit comprises an air inlet pipe, the air inlet pipe is connected with a vortex tube nozzle, the vortex tube nozzle is connected with a vortex chamber, the vortex chamber is connected with a hot flow pipe and a cold flow pipe, the hot flow pipe is connected to a main air outlet through a hot flow air outlet, and an adjusting valve is arranged in the hot flow air outlet; the cold flow pipe is connected with a heat exchange pipe, the heat exchange pipe is in contact with the atmosphere for heat exchange, and then the cold flow pipe is connected to the main air outlet for discharge. The heat exchanger comprises a plurality of pipeline heat exchange units, one ends of a plurality of air inlet pipes are connected with the same air inlet chamber, the other ends of the air inlet pipes are respectively connected with a vortex tube nozzle, and the air inlet chamber is provided with a main air inlet; the plurality of heat flow air outlets and the plurality of heat exchange tubes are connected to the same air outlet chamber, and a main air outlet is arranged on the air outlet chamber.
The heat exchanger in the prior art utilizes the eddy current effect and the atmospheric heat conduction for heating, can run without consuming external energy, is energy-saving and environment-friendly, but is only suitable for heating the atmospheric gas flow, the miniature small gas flow is not used, and the heat exchanger disclosed in the prior art utilizes the atmospheric heat for heating, has certain requirements on the use environment, and is not suitable for areas with lower air temperature.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects and shortcomings in the prior art, the utility model provides a miniature small airflow heat exchanger which is used in a pilot valve pipeline of high-pressure natural gas throttling equipment to heat trace high-pressure gas. The utility model aims to provide a heat exchanger which is applicable to a pilot valve pipeline, heats trace high-pressure gas and has no special limitation on the use environment. The vortex tube heat exchange device comprises an outer valve body, a start-up assembly, a vortex tube and a lower cover, wherein the start-up assembly is assembled at one end of the outer valve body; one end of the vortex tube is communicated with the start-up assembly, the other end of the vortex tube is communicated with the inner cavity of the lower cover, a gas inlet connector is arranged on the start-up assembly, and gas enters the vortex tube along the tangential direction of the inner cavity of the start-up assembly through the gas inlet connector; a temperature adjusting block is assembled in the lower cover and correspondingly arranged at the communication part of the vortex tube and the inner cavity of the lower cover; the lower cover is provided with a high-temperature gas outlet joint; and the outer valve body is provided with an inlet joint of gas to be heated and an outlet joint of heated gas. The utility model adopts two air flows, the first air flow generates heat through the vortex tube effect, and the purpose of heating the air is achieved after the first air flow is fully contacted with the second air flow through the heating of the wall of the vortex tube, thereby realizing the purpose of heating the trace high-pressure process air in the pilot valve pipeline. The utility model can efficiently and quickly heat gas and can ensure the overlong service time.
In order to solve the problems in the prior art, the utility model is realized by the following technical scheme.
The miniature small airflow heat exchanger comprises an outer valve body, a start-up assembly, a vortex tube and a lower cover, wherein the start-up assembly is assembled at one end of the outer valve body; one end of the vortex tube is communicated with the start-up assembly, the other end of the vortex tube is communicated with the inner cavity of the lower cover, a gas inlet connector is arranged on the start-up assembly, and gas enters the vortex tube along the tangential direction of the inner cavity of the start-up assembly through the gas inlet connector; an air guide cone is arranged in the spin-off assembly, the air guide cone and the vortex tube are coaxially arranged, a cooling gas outlet channel is arranged at the axis of the air guide cone, and a cooling gas outlet connector is assembled on the spin-off assembly; a temperature adjusting block is spirally assembled on the lower cover and correspondingly arranged at the communication part of the vortex tube and the inner cavity of the lower cover; the lower cover is provided with a high-temperature gas outlet joint; and the outer valve body is provided with an inlet joint of gas to be heated and an outlet joint of heated gas.
The working principle of the utility model is as follows:
the process gas enters the inner cavity of the spin-starting assembly along the tangential direction of the inner cavity of the spin-starting assembly through a pipeline and a gas inlet joint, a gas guide cone is manufactured in the middle of the inner cavity of the spin-starting assembly, the entered process gas forms a rotational flow at an inlet, and the airflow moving along the circumference generates a forced downward movement trend under the action of the gas guide cone so as to enter the vortex tube; the vortex tube is an energy separation device with a very simple structure, when the airflow entering the inner cavity of the vortex tube rotates at a high speed in the vortex tube, the airflow is separated into two parts of airflow with unequal temperatures after vortex conversion, the temperature of the airflow at the central part is low, the temperature of the airflow at the outer layer is high, and the ratio of cold flow to hot flow is adjusted through a temperature adjusting block according to the use requirement, so that the optimal heating effect is obtained. The low-temperature air flow in the middle of the vortex tube is turned by collision with the temperature adjusting block, flows upwards in the vortex tube, then passes through the cooling air outlet channel in the middle of the air guide cone and flows out through the cooling air outlet joint; the airflow in the inner layer and the outer layer of the vortex tube flows downwards along the tube wall of the vortex tube to the inner cavity of the closed lower cover through the gap formed by the temperature adjusting block and the vortex tube, and then flows out through the high-temperature gas outlet joint on the lower cover.
The gas of the pilot valve pipeline enters a heat exchange cavity formed between the outer valve body and the vortex tube through the pipeline and a gas inlet joint to be heated on the outer valve body, and when the gas of the pilot valve pipeline passes through the narrow heat exchange cavity, the gas of the pilot valve pipeline is fully contacted with the surface of the vortex tube, so that the heat on the surface of the vortex tube is taken away, the temperature of the gas of the pilot valve pipeline is raised, and the gas of the pilot valve pipeline flows out from a heated gas outlet joint on the outer valve body.
The temperature adjusting block is conical towards one end of the vortex tube, one part of the conical part of the temperature adjusting block is inserted into the vortex tube, a high-temperature gas passing gap is formed between the conical surface of the conical part of the temperature adjusting block and the tube opening of the vortex tube, and the temperature is adjusted by adjusting the size of the gap.
The inlet joint of the gas to be heated is arranged at the upper end of the outer valve body, and the outlet joint of the heated gas is arranged at the lower end of the outer valve body.
The start-up assembly and the outer valve body are sealed through O-shaped rings, and the upper end of the vortex tube and the lower end of the vortex tube are both sealed with the outer valve body through the O-shaped rings; the lower cover and the outer valve body are sealed through an O-shaped ring.
The inner diameter of a cooling gas outlet channel on the gas guide cone is the same as that of the vortex tube.
Compared with the prior art, the beneficial technical effects brought by the utility model are as follows:
1. the utility model adopts two air flows, the first air flow generates heat by using the vortex tube effect to heat the vortex tube, and heat exchange is carried out after the wall of the heated vortex tube is in full contact with the second air flow, thereby achieving the purpose of heating the second air flow. The utility model can efficiently and quickly heat gas, and the process gas can form cold and hot gas flows at the moment of entering the vortex tube, thereby realizing the separation of the cold and hot gas flows. The process gas can be high-pressure gas in the pipeline or external gas. The heat exchanger disclosed by the utility model has no moving part, and can ensure the overlong service time.
2. The utility model adopts a mode of heat exchange by two air flows, one air flow generates heat in a vortex mode, the other air flow exchanges heat, no special requirement is required for the external environment temperature, and the adaptability is stronger.
3. In the utility model, a narrow space is formed between the vortex tube and the outer valve body, so that the heat exchange is strong, the heat exchange efficiency is improved, and the miniature small airflow is effectively heated.
4. One end of the temperature adjusting block is conical, on one hand, a high-temperature gas passing gap is formed between the conical surface of the conical part of the temperature adjusting block and the pipe orifice of the vortex tube, and the temperature is adjusted by adjusting the size of the gap; on the other hand, the cold air flow at the central part of the vortex tube collides with the conical part to form the turning from inside to outside, and the cold air flow center collides and turns first, and then the cold air flow outer layer collides and turns, so that the disorder of the cold air flow can not be caused.
5. O-shaped rings are adopted between the screwing assembly and the outer valve body, between the vortex tube and the outer valve body and between the lower cover and the outer valve body for sealing, so that the sealing performance is ensured, and gas leakage is avoided.
Drawings
FIG. 1 is a cross-sectional view of a heat exchanger according to the present invention;
FIG. 2 is a top cross-sectional view of the heat exchanger of the present invention;
reference numerals: 1. the gas-liquid separator comprises an outer valve body, 2, a rotation starting assembly, 3, a vortex tube, 4, a lower cover, 5, a heat exchange cavity, 6, a gas inlet joint, 7, a gas guide cone, 8, a cooling gas outlet channel, 9, a cooling gas outlet joint, 10, a temperature adjusting block, 11, a high-temperature gas outlet joint, 12, a gas inlet joint to be heated, 13, a heated gas outlet joint, 14 and a conical part.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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.
As an embodiment of the present invention, referring to the attached drawing 1 of the specification, the embodiment discloses a miniature small gas flow heat exchanger, which includes an outer valve body 1, a start-up assembly 2, a vortex tube 3 and a lower cover 4, wherein the start-up assembly 2 is assembled at one end of the outer valve body 1, the lower cover 4 is assembled at the other end of the outer valve body 1, the vortex tube 3 is assembled in the outer valve body 1, a heat exchange cavity 5 is formed between the vortex tube 3 and the outer valve body 1, and outer walls at two ends of the vortex tube 3 are sealed with an inner wall of the outer valve body 1.
The vortex tube 3 is fixed in the outer valve body 1 in a tight fit manner. The assembly is convenient to disassemble, install, maintain and replace parts.
Furthermore, the upper end face of the outer valve body 1 is provided with a groove for being matched with a flange plate for installing the vortex tube 3, so that after assembly, the end face of the vortex tube 3 and the end face of the outer valve body 1 are positioned in the same plane, the screwing assembly 2 is convenient to be tightly and fixedly assembled, and similarly, the assembly of the lower end of the outer valve body 1 is similar to that of the upper end, so that the lower cover 4 is convenient to be tightly and fixedly assembled.
As another embodiment of this embodiment, one end of the vortex tube 3 is communicated with the spin-start assembly 2, the other end is communicated with the inner cavity of the lower cover 4, the spin-start assembly 2 is provided with a gas inlet joint 6, the process gas enters the inner cavity of the spin-start assembly 2 along the tangential direction of the inner cavity of the spin-start assembly 2 through a pipeline and the gas inlet joint 6, a gas guide cone 7 is manufactured in the middle of the inner cavity of the spin-start assembly 2, the entering process gas forms a vortex at the inlet, and the gas flow moving along the circumference generates a forced downward movement trend under the action of the gas guide cone 7, so as to enter the vortex tube 3.
As another embodiment of the embodiment, a cooling gas outlet channel 8 is arranged at the axis of the gas guide cone 7, and a cooling gas outlet joint 9 is assembled on the rotation starting assembly 2; the lower cover 4 is spirally assembled with a temperature adjusting block 10, the temperature adjusting block 10 is correspondingly arranged at the communication position of the vortex tube 3 and the inner cavity of the lower cover 4, and the lower cover 4 is provided with a high-temperature gas outlet joint 11. The vortex tube 3 is an energy separation device with a very simple structure, when the airflow entering the inner cavity of the vortex tube 3 rotates at a high speed in the vortex tube 3, the airflow is separated into two parts of airflow with unequal temperatures after vortex conversion, the temperature of the airflow at the central part is low, the temperature of the airflow at the outer layer part is high, and the cold-hot flow ratio is adjusted through the temperature adjusting block 10 according to the use requirement, so that the optimal heating effect is obtained. The low-temperature gas flow in the middle of the vortex tube 3 is collided with the temperature adjusting block 10 to turn, flows upwards in the vortex tube 3, then passes through the cooling gas outlet channel 8 in the middle of the gas guide cone 7 and flows out through the cooling gas outlet joint 9; the air flow in the inner layer and the outer layer of the vortex tube 3 flows downwards along the tube wall of the vortex tube 3 to the inner cavity of the closed lower cover 4 through the gap formed by the temperature adjusting block 10 and the vortex tube 3, and then flows out through the high-temperature gas outlet joint 11 on the lower cover 4.
As a further embodiment of the present embodiment, the outer valve body 1 is provided with an inlet connection 12 for gas to be heated and an outlet connection 13 for heated gas. The gas of the pilot valve pipeline enters a heat exchange cavity 5 formed between the outer valve body 1 and the vortex tube 3 through a pipeline and a gas inlet joint 12 to be heated on the outer valve body 1, and when the gas of the pilot valve pipeline passes through the narrow heat exchange cavity 5, the gas of the pilot valve pipeline is fully contacted with the surface of the vortex tube 3, the heat on the surface of the vortex tube 3 is taken away, the temperature of the gas of the pilot valve pipeline is raised, and the gas flows out from a heated gas outlet joint 13 on the outer valve body 1.
In another embodiment of the present invention, one end of the temperature adjustment block 10 facing the vortex tube 3 is tapered, a portion of the tapered portion 14 of the temperature adjustment block 10 is inserted into the vortex tube 3, a high-temperature gas passage gap is formed between the tapered surface of the tapered portion 14 of the temperature adjustment block 10 and the nozzle of the vortex tube 3, and the temperature is adjusted by adjusting the size of the gap.
As a further embodiment of the present embodiment, the inlet joint 12 for the gas to be heated is provided at the upper end of the outer valve body 1, and the outlet joint 13 for the heated gas is provided at the lower end of the outer valve body 1. The gas flows from top to bottom, so that heat exchange is facilitated, and the heat exchange efficiency is improved.
As another embodiment of the present embodiment, the spin-off assembly 2 is sealed with the outer valve body 1 by an O-ring, and both the upper end of the vortex tube 3 and the lower end of the vortex tube 3 are sealed with the outer valve body 1 by O-rings; the lower cover 4 and the outer valve body 1 are sealed through an O-shaped ring. Ensure the sealing performance and avoid gas leakage.
Furthermore, the inner diameter of the cooling gas outlet channel 8 on the gas guide cone 7 is the same as the inner diameter of the vortex tube 3. Facilitating the discharge of the cold air flow. That is, the air flow guided into the vortex tube 3 through the air guide cone 7 does not interfere with the cold air flow discharged from the vortex tube 3. If the minimum diameter of the air guide cone 7 is smaller than the inner diameter of the vortex tube 3, a part of the air flow guided downwards collides with the cold air flow discharged from the vortex tube 3, so that the flow direction of the cold air flow is disturbed.
Claims (5)
1. Miniature little air current heat exchanger, its characterized in that: the vortex tube type vortex valve comprises an outer valve body (1), a start-up assembly (2), a vortex tube (3) and a lower cover (4), wherein the start-up assembly (2) is assembled at one end of the outer valve body (1), the lower cover (4) is assembled at the other end of the outer valve body (1), the vortex tube (3) is assembled in the outer valve body (1), a heat exchange cavity (5) is formed between the vortex tube (3) and the outer valve body (1), and the outer walls of two ends of the vortex tube (3) are sealed with the inner wall of the outer valve body (1); one end of the vortex tube (3) is communicated with the start-up assembly (2), the other end of the vortex tube is communicated with the inner cavity of the lower cover (4), a gas inlet joint (6) is arranged on the start-up assembly (2), and gas enters along the tangential direction of the inner cavity of the start-up assembly (2) through the gas inlet joint (6); an air guide cone (7) is arranged in the spin-up assembly (2), the air guide cone (7) and the vortex tube (3) are coaxially arranged, a cooling gas outlet channel (8) is arranged at the axis of the air guide cone (7), and a cooling gas outlet connector (9) is assembled on the spin-up assembly (2); a temperature adjusting block (10) is spirally assembled on the lower cover (4), and the temperature adjusting block (10) is correspondingly arranged at the communication part of the vortex tube (3) and the inner cavity of the lower cover (4); a high-temperature gas outlet joint (11) is arranged on the lower cover (4); the outer valve body (1) is provided with a gas inlet joint (12) to be heated and a heated gas outlet joint (13).
2. A miniature small gas flow heat exchanger as set forth in claim 1 wherein: one end of the temperature adjusting block (10) facing the vortex tube (3) is conical, one part of a conical part (14) of the temperature adjusting block (10) is inserted into the vortex tube (3), a high-temperature gas passing gap is formed between the conical surface of the conical part (14) of the temperature adjusting block (10) and the tube opening of the vortex tube (3), and the temperature is adjusted by adjusting the size of the gap.
3. A miniature, small-flow heat exchanger as set forth in claim 1 or 2, wherein: the gas inlet joint (12) to be heated is arranged at the upper end of the outer valve body (1), and the heated gas outlet joint (13) is arranged at the lower end of the outer valve body (1).
4. A miniature, small-flow heat exchanger as set forth in claim 1 or 2, wherein: the screwing-off assembly (2) and the outer valve body (1) are sealed through O-shaped rings, and the upper end of the vortex tube (3) and the lower end of the vortex tube (3) are both sealed with the outer valve body (1) through the O-shaped rings; the lower cover (4) and the outer valve body (1) are sealed through an O-shaped ring.
5. A miniature, small-flow heat exchanger as set forth in claim 1 or 2, wherein: the inner diameter of a cooling gas outlet channel (8) on the gas guide cone (7) is the same as that of the vortex tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123078603.8U CN216558407U (en) | 2021-12-09 | 2021-12-09 | Miniature small air flow heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123078603.8U CN216558407U (en) | 2021-12-09 | 2021-12-09 | Miniature small air flow heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216558407U true CN216558407U (en) | 2022-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123078603.8U Active CN216558407U (en) | 2021-12-09 | 2021-12-09 | Miniature small air flow heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216558407U (en) |
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2021
- 2021-12-09 CN CN202123078603.8U patent/CN216558407U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Miniature small air flow heat exchanger Effective date of registration: 20220926 Granted publication date: 20220517 Pledgee: Leshan Branch of Zheshang Bank Co.,Ltd. Pledgor: SICHUAN CHANGYI OIL-GAS GATHERING TRANSPORTATION EQUIPMENT CO.,LTD. Registration number: Y2022980016202 |