A heat exchange, gasification, and pressure regulation integrated device

Abstract

This utility model relates to the field of vaporizer technology, specifically a heat exchange vaporization and pressure regulation integrated device, comprising: two frames, with uniformly distributed mounting plates fixedly connected to the inner side of each frame; a liquid inlet pipe at the bottom of one frame and a gas outlet pipe on one side of the frame; a heat exchange structure disposed between the two frames; and a pressure regulating structure disposed on one side of the heat exchange structure. By setting the heat exchange structure, the medium can flow in a spiral shape by setting guide fins inside the heat exchange tube, increasing the flow path and thus prolonging the contact time between the medium and the heat exchange tube, improving the heat absorption time of the medium. Simultaneously, by setting protrusions, the surface roughness of the guide fins can be increased, increasing the turbulence during the medium flow process, thereby improving the heat exchange effect.

Description

Technical Field

[0001] This utility model relates to the field of vaporizer technology, and in particular to an integrated heat exchange vaporization and pressure regulation device. Background Technology

[0002] The vaporizer is composed of multiple heat exchange tubes. The low-temperature liquid flows inside the tubes, exchanging heat with the air. When it is heated to room temperature, it flows into a pressure regulating device to reduce the pressure. In many liquefied gas stations, especially for residential use, the pressure needs to be reduced to tens of kilopascals before it can enter the pipeline network.

[0003] A search revealed a Chinese patent (publication number CN220169489U) that discloses an ambient temperature vaporizer. The combination of the auxiliary plate and heat-conducting fins in this patent allows the surface of the vaporizer straight pipe to be filled with hot gas, preventing ice formation on the surface of the vaporizer straight pipe. However, the heat exchange rate between the internal medium and the heat exchange tube is low during the flow of the medium. Therefore, those skilled in the art have provided a high-efficiency heat exchange vaporization pressure regulating integrated device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an integrated heat exchange, vaporization, and pressure regulation device to solve the above-mentioned problems, thereby improving the low heat exchange rate between the internal medium and the heat exchange tube during the flow of the medium.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a heat exchange, gasification, and pressure regulation integrated device, comprising: a frame, a heat exchange structure, and a pressure regulation structure. Two frames are provided, and uniformly distributed mounting plates are fixedly connected to the inner side of the frames. One of the frames has a liquid inlet pipe at its bottom and a gas outlet pipe on one side. The heat exchange structure is disposed between the two frames. The pressure regulation structure is disposed on one side of the heat exchange structure.

[0006] Preferably, the heat exchange structure includes a plurality of heat exchange tubes arranged in a rectangular array, and heat exchange fins are fixedly connected to the surface of the heat exchange tubes. The surface of the heat exchange fins is provided with uniformly distributed heat exchange holes.

[0007] Preferably, both of the two frames are provided with evenly distributed connecting bends on opposite sides, and the bottom of one of the heat exchange tubes is connected to the liquid inlet pipe.

[0008] Preferably, the cross-sectional shape of the connecting bend is approximately "U" shaped, and both ends of the connecting bend penetrate the mounting plate and are respectively connected to two adjacent heat exchange tubes.

[0009] Preferably, the heat exchange tube is provided with uniformly distributed flow guide fins, which are arranged in a spiral shape.

[0010] Preferably, the surface of the flow guide fins is provided with uniformly distributed protrusions.

[0011] Preferably, the number of heat exchange fins on the surface of the heat exchange tube gradually increases with the direction of medium flow.

[0012] Preferably, the pressure regulating structure includes a connecting pipe disposed above the mounting plate, one end of the connecting pipe being connected to the air outlet pipe, and the bottom of one of the heat exchange tubes being connected to the connecting pipe via a connecting bend.

[0013] Preferably, the surface of the connecting pipe is provided with a shut-off valve, a pressure regulating valve and a filter in sequence along the direction of medium flow.

[0014] Preferably, there are two shut-off valves, and the pressure regulating valve is disposed between the two shut-off valves.

[0015] The beneficial effects of this utility model are: by setting a heat exchange structure, the medium can flow in a spiral shape by setting guide fins inside the heat exchange tube, which increases the flow path and thus prolongs the contact time between the medium and the heat exchange tube, and improves the absorption time of heat by the medium. At the same time, by setting protrusions, the surface roughness of the guide fins can be increased, which increases the turbulence during the flow of the medium, thereby improving the heat exchange effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the heat exchange structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the voltage regulating structure of this utility model;

[0019] Figure 4 This is a schematic diagram showing the distribution of the flow guide fins, heat exchange tubes, and heat exchange fins of this utility model.

[0020] Reference numerals: 1. Frame; 101. Mounting plate; 102. Liquid inlet pipe; 2. Heat exchange structure; 201. Heat exchange tube; 202. Connecting bend; 203. Heat exchange fins; 204. Guide fins; 205. Heat exchange hole; 206. Protrusion; 3. Gas outlet pipe; 4. Pressure regulating structure; 401. Connecting pipe; 402. Shut-off valve; 403. Pressure regulating valve; 404. Filter. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In practical implementation: such as Figure 1-4 As shown, an integrated heat exchange, gasification, and pressure regulation device includes: a frame 1, a heat exchange structure 2, and a pressure regulation structure 4; two frames 1 are provided, and uniformly distributed mounting plates 101 are fixedly connected to the inner side of the frame 1; a liquid inlet pipe 102 is provided at the bottom of one of the frames 1, and a gas outlet pipe 3 is provided on one side of the frame 1; the heat exchange structure 2 is disposed between the two frames 1; and the pressure regulation structure 4 is disposed on one side of the heat exchange structure 2.

[0023] The inlet pipe 102 is used to introduce cryogenic liquid, and the outlet pipe 3 is used to export low-pressure gas after the pressure has been adjusted by the pressure regulating structure 4.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the heat exchange structure 2 includes a plurality of heat exchange tubes 201 arranged in a rectangular array. Heat exchange fins 203 are fixedly connected to the surface of the heat exchange tubes 201, and heat exchange holes 205 are evenly distributed on the surface of the heat exchange fins 203.

[0025] Both of the two frames 1 are provided with evenly distributed connecting bends 202 on opposite sides. The connecting bends 202 connect all the heat exchange tubes 201 in series, and the bottom of one of the heat exchange tubes 201 is connected to the liquid inlet pipe 102.

[0026] The cross-sectional shape of the connecting bend 202 is approximately "U" shaped. Both ends of the connecting bend 202 penetrate the mounting plate 101 and are respectively connected to two adjacent heat exchange tubes 201.

[0027] The heat exchange tube 201 is provided with uniformly distributed flow guide fins 204 inside. The flow guide fins 204 are located on the inner surface of the heat exchange tube 201 and are distributed in a spiral shape.

[0028] The surface of the flow guide fin 204 is provided with uniformly distributed protrusions 206.

[0029] The number of heat exchange fins 203 on the surface of the heat exchange tube 201 gradually increases with the direction of medium flow.

[0030] After the cryogenic liquid is introduced into the heat exchange tube 201 through the liquid inlet pipe 102, the cryogenic liquid flows through the interior of several heat exchange tubes 201 in sequence under the action of the connecting bend pipe 202. During this process, the heat exchange fins 203 can absorb heat from the air and cooperate with the heat exchange tubes 201 to exchange heat with the cryogenic liquid, so that it eventually forms gas and is discharged.

[0031] The setting of heat exchange holes 205 can increase the air flow between heat exchange fins 203 and reduce the poor air flow caused by the setting of heat exchange fins 203 during the placement of multiple heat exchange tubes 201.

[0032] The arrangement of increasing number of heat exchange fins 203 on the surface of heat exchange tube 201 in the direction of medium flow ensures that less heat is absorbed by the heat exchange fins 203 in the initial stage of medium flow, so that the heat absorbed by the medium gradually increases during the flow process. This avoids the low-temperature medium flowing inside the heat exchange tube 201, while the large number of heat exchange fins 203 absorb more heat on the outside, resulting in a large temperature difference between the inside and outside. This avoids damage to the heat exchange tube 201 due to a large temperature difference.

[0033] The flow guide fins 204 enable the medium to rise in a spiral shape during its flow inside the heat exchange tube 201, thereby increasing the flow time inside the heat exchange tube 201 and thus increasing the contact time between the medium and the heat exchange tube 201, effectively improving the time for the medium to absorb heat.

[0034] By setting protrusions 206 on the flow guide fins 204, the roughness of the surface of the flow guide fins 204 can be increased, which increases the turbulence in the medium flow process and thus improves the heat exchange effect.

[0035] like Figure 1 and Figure 3 As shown, the pressure regulating structure 4 includes a connecting pipe 401 disposed above the mounting plate 101. One end of the connecting pipe 401 is connected to the air outlet pipe 3, and the bottom of one of the heat exchange pipes 201 is connected to the connecting pipe 401 through a connecting bend 202.

[0036] The surface of the connecting pipe 401 is sequentially provided with a shut-off valve 402, a pressure regulating valve 403, and a filter 404 along the medium flow direction.

[0037] There are two shut-off valves 402, and the pressure regulating valve 403 is disposed between the two shut-off valves 402 to facilitate the pressure regulation of the gas.

[0038] After being vaporized by the heat exchange structure 2, the medium can be introduced into the interior of the connecting pipe 401 through the connecting bend 202. It is then depressurized by the shut-off valve 402 and the pressure regulating valve 403, and finally discharged through the outlet pipe 3 after being filtered by the filter 404.

[0039] Furthermore, the pressure regulating structure 4 is set on the frame 1, which can form an integral part with the heat exchange structure 2 during the installation process, making installation convenient. Compared with the traditional method of setting the pressure regulating structure 4 separately, it can effectively reduce the floor space. After it is placed, each heat exchange tube 201 can be connected to the pressure regulating structure 4 by connecting the bend pipe 202, which is simple to operate.

[0040] In use, this invention introduces cryogenic liquid into the heat exchange tubes 201 connected to the inlet pipe 102. Under the action of the connecting bend 202, the cryogenic liquid flows sequentially through several heat exchange tubes 201. During this process, heat exchange fins 203 absorb heat from the air, facilitating heat exchange between the heat exchange tubes 201 and the cryogenic liquid. The design of increasing numbers of heat exchange fins 203 on the surface of the heat exchange tubes 201 along the flow direction of the medium minimizes the amount of heat absorbed by the fins in the initial stage of medium flow, thus reducing the heat loss during the initial flow. During the flow of the medium, the heat absorbed gradually increases, avoiding the situation where the low-temperature medium flows inside the heat exchange tube 201 and the numerous heat exchange fins 203 absorb more heat on the outside, causing a large temperature difference between the inside and outside. This avoids damage to the heat exchange tube 201 due to a large temperature difference. At the same time, the arrangement of the guide fins 204 and the protrusions 206 can increase the contact time between the medium and the heat exchange tube 201, improving the heat exchange effect. Finally, the gas is introduced into the interior of the pressure regulating structure 4. After the pressure regulating structure 4 reduces the pressure of the gas, the resulting low-pressure gas can be discharged through the gas outlet pipe 3.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat exchange, gasification, and pressure regulating integrated device, characterized in that, include: The frame (1), heat exchange structure (2), and pressure regulating structure (4) are provided. There are two frames (1). The inner side of the frame (1) is fixedly connected with uniformly distributed mounting plates (101). One of the frames (1) is provided with a liquid inlet pipe (102) at the bottom and a gas outlet pipe (3) on one side of the frame (1). The heat exchange structure (2) is provided between the two frames (1). The pressure regulating structure (4) is provided on one side of the heat exchange structure (2).

2. The integrated heat exchange, gasification, and pressure regulation device according to claim 1, characterized in that: The heat exchange structure (2) includes a plurality of heat exchange tubes (201) arranged in a rectangular array. Heat exchange fins (203) are fixedly connected to the surface of the heat exchange tubes (201), and heat exchange holes (205) are evenly distributed on the surface of the heat exchange fins (203).

3. The integrated heat exchange, gasification, and pressure regulation device according to claim 2, characterized in that: Both frames (1) are provided with evenly distributed connecting bends (202) on opposite sides. The connecting bends (202) connect all the heat exchange tubes (201) in series, and the bottom of one of the heat exchange tubes (201) is connected to the liquid inlet pipe (102).

4. The integrated heat exchange, gasification, and pressure regulation device according to claim 3, characterized in that: The cross-sectional shape of the connecting bend (202) is approximately "U" shaped. Both ends of the connecting bend (202) penetrate the mounting plate (101) and are respectively connected to two adjacent heat exchange tubes (201).

5. The integrated heat exchange, gasification, and pressure regulation device according to claim 4, characterized in that: The heat exchange tube (201) is provided with uniformly distributed guide fins (204) inside, and the guide fins (204) are distributed in a spiral shape.

6. The integrated heat exchange, gasification, and pressure regulation device according to claim 5, characterized in that: The surface of the flow guide fin (204) is provided with uniformly distributed protrusions (206).

7. The integrated heat exchange, gasification, and pressure regulation device according to claim 6, characterized in that: The number of heat exchange fins (203) on the surface of the heat exchange tube (201) gradually increases with the direction of medium flow.

8. The integrated heat exchange, gasification, and pressure regulation device according to claim 3, characterized in that: The pressure regulating structure (4) includes a connecting pipe (401) disposed above the mounting plate (101). One end of the connecting pipe (401) is connected to the gas outlet pipe (3), and the bottom of one of the heat exchange tubes (201) is connected to the connecting pipe (401) through a connecting bend (202).

9. The integrated heat exchange, gasification, and pressure regulation device according to claim 8, characterized in that: The surface of the connecting pipe (401) is sequentially provided with a shut-off valve (402), a pressure regulating valve (403), and a filter (404) along the medium flow direction.

10. The integrated heat exchange, gasification, and pressure regulation device according to claim 9, characterized in that: There are two shut-off valves (402), and a pressure regulating valve (403) is disposed between the two shut-off valves (402).

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