Liquid nitrogen heat exchange circulating device

Abstract

The utility model discloses a kind of liquid nitrogen heat exchange circulating devices, relate to liquid nitrogen heat exchange device technical field.The liquid nitrogen heat exchange circulating device, including T-shaped protective shell main body, adjusting plate, storage tank, recovery unit, supply unit, adjusting unit.The liquid nitrogen heat exchange circulating device, T-shaped protective shell main body is arranged outside the structure of the liquid nitrogen heat exchange circulating device, it is protected, T-shaped protective shell main body bottom is provided with the adjusting plate of being able to slide, simultaneously using adjusting unit is convenient for adjusting the height of T-shaped protective shell main body, when outer connecting pipeline and connecting unit are not at the same height, the height of connecting unit can be quickly adjusted by adjusting unit, it is convenient for its quick connection to put into operation.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid nitrogen heat exchange devices, specifically a liquid nitrogen heat exchange circulation device. Background Technology

[0002] Liquid nitrogen heat exchange circulation devices are key equipment for achieving efficient heat exchange in modern industry. Utilizing the ultra-low temperature characteristics of liquid nitrogen, through specially designed pipelines and heat exchangers, liquid nitrogen exchanges heat with the medium being treated, rapidly achieving cooling or heating.

[0003] Existing liquid nitrogen heat exchange circulation devices utilize the low-temperature properties of liquid nitrogen for heat exchange and achieve continuous utilization of liquid nitrogen through a circulation system. These devices are widely used in cryogenic cooling, industrial refrigeration, and scientific research. Each device contains a heat exchanger; the medium requiring cooling is passed into the heat exchanger, and simultaneously, circulating liquid nitrogen is introduced to achieve rapid cooling. The circulating liquid nitrogen mode saves resources. However, the heat exchanger has a fixed height, and the height of the connecting units on the heat exchanger is not easily adjustable. When the heat exchanger is not at the same height as the external piping, complex adjustments are required, increasing investment costs. To address the shortcomings of existing technologies, this invention provides a liquid nitrogen heat exchange circulation device to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a liquid nitrogen heat exchange circulation device, which solves the problems of fixed heat exchanger height, inconvenient adjustment of the height of the connection unit on the heat exchanger, and the need for complex debugging and increased investment costs when the heat exchanger is not at the same height as the external pipeline.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid nitrogen heat exchange circulation device, comprising:

[0006] T-shaped protective shell body;

[0007] An adjustment plate is located at the bottom of the T-shaped protective shell body;

[0008] A storage tank is fixedly connected inside a T-shaped protective shell body, and a heat exchanger is provided on the side of the storage tank.

[0009] The adjustment unit includes a servo motor disposed at the bottom of the T-shaped protective shell body, and a threaded rod is fixedly connected to the output end of the servo motor. The adjustment unit is used to adjust the height of the T-shaped protective shell body.

[0010] Preferably, a fixing block is fixedly connected to the bottom of the T-shaped protective shell body, the threaded rod is threadedly connected to the fixing block, a track body is fixedly connected to the bottom of the T-shaped protective shell body, and the adjusting plate is slidably connected inside the track body.

[0011] Preferably, a recovery unit is provided between the storage tank and the heat exchanger. The recovery unit is used to recover nitrogen gas inside the heat exchanger, and the recovery unit includes:

[0012] A compressor, which is mounted on a heat exchanger;

[0013] The recovery pipeline has one end fixedly connected to the compressor;

[0014] A throttle valve is installed on the storage tank, and the other end of the recovery pipeline is fixedly connected to the throttle valve.

[0015] Preferably, a supply unit is provided between the storage tank and the heat exchanger, the supply unit being used to fill the heat exchanger with liquid nitrogen, the supply unit comprising:

[0016] A cryogenic valve is located on one side of the storage tank;

[0017] A supply pipe is fixedly connected at one end to the upper end of a cryogenic valve, and the other end of the supply pipe is located on a heat exchanger.

[0018] Preferably, the heat exchanger is provided with a connection unit at one end near the storage tank. The connection unit is used for connecting to an external pipeline, and the connection unit includes:

[0019] The piping is reinforced and fixedly connected to the heat exchanger;

[0020] A connecting flange is fixedly connected to the end of the reinforced pipe furthest from the heat exchanger.

[0021] Preferably, the bottom of the adjustment plate is fixedly connected to a support leg, and a Y-shaped support plate is fixedly connected between the support legs, with the servo motor mounted on the Y-shaped support plate.

[0022] Preferably, an additional protective shell is fixedly connected to the outer peripheral wall of the T-shaped protective shell body, and the additional protective shell is used to protect the solenoid valve.

[0023] Preferably, a solenoid valve is provided on one side of the storage tank.

[0024] This utility model discloses a liquid nitrogen heat exchange circulation device, which has the following beneficial effects:

[0025] The liquid nitrogen heat exchange circulation device adopts a structure in which a T-shaped protective shell is installed outside the liquid nitrogen heat exchange circulation device to protect it. The bottom of the T-shaped protective shell is equipped with a sliding adjustment plate. At the same time, the height of the T-shaped protective shell can be easily adjusted by the adjustment unit. When the external pipeline and the connection unit are not at the same height, the height of the connection unit can be quickly adjusted by the adjustment unit to facilitate its rapid connection and commissioning. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Fig. 2 This is a schematic diagram of the recycling unit structure of this utility model;

[0029] Fig. 3 This is a schematic diagram of the adjustment unit structure of this utility model.

[0030] In the diagram: 1. T-shaped protective shell main body; 11. Fixing block; 12. Track main body; 13. Additional protective shell; 2. Adjusting plate; 21. Support leg; 22. Y-shaped support plate; 3. Storage tank; 31. Solenoid valve; 32. Heat exchanger; 4. Connection unit; 41. Reinforced pipe; 42. Connection flange; 5. Recovery unit; 51. Compressor; 52. Recovery pipe; 53. Throttling valve; 6. Supply unit; 61. Cryogenic valve; 62. Supply pipe; 7. Adjusting unit; 71. Servo motor; 72. Threaded rod. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] This application provides a liquid nitrogen heat exchange circulation device that solves the problems of fixed height of heat exchanger 32, inconvenient height adjustment of connection unit 4 on heat exchanger 32, and the need for complex debugging and increased investment costs when it is not at the same height as the external pipeline. The solution is to install a T-shaped protective shell body 1 outside the liquid nitrogen heat exchange circulation device for protection. The bottom of the T-shaped protective shell body 1 is provided with a sliding adjustment plate 2. At the same time, the height of the T-shaped protective shell body 1 can be easily adjusted by the adjustment unit 7. When the external pipeline and the connection unit 4 are not at the same height, the height of the connection unit 4 can be quickly adjusted by the adjustment unit 7, which facilitates its rapid connection and commissioning.

[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0034] This utility model discloses a liquid nitrogen heat exchange circulation device.

[0035] Example 1: According to the appendix Figs. 1-3 As shown, it includes:

[0036] T-shaped protective shell body 1;

[0037] Adjustment plate 2 is located at the bottom of the T-shaped protective shell body 1;

[0038] Storage tank 3 is fixedly connected inside the T-shaped protective shell body 1, and a heat exchanger 32 is provided on the side of storage tank 3;

[0039] The adjustment unit 7 includes a servo motor 71 disposed at the bottom of the T-shaped protective shell body 1, and a threaded rod 72 fixedly connected to the output end of the servo motor 71. The adjustment unit 7 is used to adjust the height of the T-shaped protective shell body 1.

[0040] The bottom of the T-shaped protective shell body 1 is fixedly connected to a fixing block 11, and the threaded rod 72 is threadedly connected to the fixing block 11. The bottom of the T-shaped protective shell body 1 is fixedly connected to a track body 12, and the adjusting plate 2 is slidably connected inside the track body 12.

[0041] A connection unit 4 is provided at one end of the heat exchanger 32 near the storage tank 3. The connection unit 4 is used for external pipe connection and includes:

[0042] The reinforcing pipe 41 is fixedly connected to the heat exchanger 32;

[0043] The connecting flange 42 is fixedly connected to the end of the reinforcing pipe 41 away from the heat exchanger 32.

[0044] The bottom of the adjustment plate 2 is fixedly connected to a support leg 21, and a Y-shaped support plate 22 is fixedly connected between the support legs 21. The servo motor 71 is mounted on the Y-shaped support plate 22.

[0045] The liquid nitrogen heat exchanger is protected by a T-shaped protective shell body 1. The bottom of the T-shaped protective shell body 1 is equipped with a sliding adjustment plate 2. The height of the T-shaped protective shell body 1 can be easily adjusted by the adjustment unit 7. When the external pipe and the connection unit 4 are not at the same height, the height of the connection unit 4 can be quickly adjusted by the adjustment unit 7 to facilitate its quick connection and operation. First, the servo motor 71 drives the threaded rod 72 to rotate. The threaded connection between the threaded rod 72 and the fixed block 11 facilitates its movement. When the T-shaped protective shell body 1 moves to the preset position, the external pipe and the connection flange 42 in the connection unit 4 are connected by bolts.

[0046] Example 1: According to the appendix Figs. 1-3 As shown, it includes:

[0047] T-shaped protective shell body 1;

[0048] Adjustment plate 2 is located at the bottom of the T-shaped protective shell body 1;

[0049] Storage tank 3 is fixedly connected inside the T-shaped protective shell body 1, and a heat exchanger 32 is provided on the side of storage tank 3;

[0050] Adjustment unit 7 includes a servo motor 71 disposed at the bottom of the T-shaped protective shell body 1, and the output end of the servo motor 71 is fixed.

[0051] A recovery unit 5 is provided between the storage tank 3 and the heat exchanger 32. The recovery unit 5 is used to recover nitrogen gas in the heat exchanger 32. The recovery unit 5 includes a compressor 51, which is provided on the heat exchanger 32.

[0052] The recovery pipe 52 has one end fixedly connected to the compressor 51;

[0053] A throttle valve 53 is installed on the storage tank 3, and the other end of the recovery pipe 52 is fixedly connected to the throttle valve 53.

[0054] A supply unit 6 is provided between the storage tank 3 and the heat exchanger 32. The supply unit 6 is used to fill the heat exchanger 32 with liquid nitrogen. The supply unit 6 includes:

[0055] A cryogenic valve 61 is located on one side of the storage tank 3;

[0056] The supply pipe 62 has one end fixedly connected to the upper end of the cryogenic valve 61, and the other end of the supply pipe 62 is set on the heat exchanger 32.

[0057] An additional protective shell 13 is fixedly connected to the outer peripheral wall of the T-shaped protective shell body 1. The additional protective shell 13 is used to protect the solenoid valve 31.

[0058] A solenoid valve 31 is installed on one side of the storage tank 3, which facilitates the replacement of liquid nitrogen in the storage tank 3.

[0059] The liquid nitrogen heat exchange circulation device first injects liquid nitrogen into the storage tank 3 through the solenoid valve 31, and then introduces the medium to be cooled into the heat exchanger 32. At the same time, the circulating liquid nitrogen is introduced into the heat exchanger 32 through the supply unit 6 to achieve the purpose of rapid cooling. The vaporized liquid nitrogen first passes through the compressor 51 to pressurize the nitrogen gas and improve the reliquefaction efficiency. Then, it flows into the throttle valve 53 through the recovery pipe 52 to reduce the pressure and temperature, and finally enters the storage tank 3 to complete one cycle.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid nitrogen heat exchange circulation device, characterized in that, include: T-shaped protective shell body (1); Adjustment plate (2), which is located at the bottom of the T-shaped protective shell body (1); Storage tank (3) is fixedly connected inside the T-shaped protective shell body (1), and a heat exchanger (32) is provided on the side of the storage tank (3); The adjustment unit (7) includes a servo motor (71) disposed at the bottom of the T-shaped protective shell body (1), and a threaded rod (72) is fixedly connected to the output end of the servo motor (71). The adjustment unit (7) is used to adjust the height of the T-shaped protective shell body (1).

2. The liquid nitrogen heat exchange circulation device according to claim 1, characterized in that, The bottom of the T-shaped protective shell body (1) is fixedly connected to a fixing block (11), the threaded rod (72) is threadedly connected to the fixing block (11), the bottom of the T-shaped protective shell body (1) is fixedly connected to a track body (12), and the adjusting plate (2) is slidably connected inside the track body (12).

3. The liquid nitrogen heat exchange circulation device according to claim 1, characterized in that, A recovery unit (5) is provided between the storage tank (3) and the heat exchanger (32). The recovery unit (5) is used to recover nitrogen gas in the heat exchanger (32). The recovery unit (5) includes: A compressor (51) is mounted on a heat exchanger (32); A recovery pipe (52) is fixedly connected at one end to a compressor (51); A throttle valve (53) is installed on the storage tank (3), and the other end of the recovery pipe (52) is fixedly connected to the throttle valve (53).

4. The liquid nitrogen heat exchange circulation device according to claim 1, characterized in that, A supply unit (6) is provided between the storage tank (3) and the heat exchanger (32). The supply unit (6) is used to fill the heat exchanger (32) with liquid nitrogen. The supply unit (6) includes: A cryogenic valve (61) is located on one side of the storage tank (3); A supply pipe (62) is fixedly connected at one end to the upper end of a cryogenic valve (61), and the other end of the supply pipe (62) is set on a heat exchanger (32).

5. The liquid nitrogen heat exchange circulation device according to claim 1, characterized in that, The heat exchanger (32) is provided with a connection unit (4) at one end near the storage tank (3). The connection unit (4) is used for external pipe connection and includes: A reinforced pipe (41) is fixedly connected to the heat exchanger (32); A connecting flange (42) is fixedly connected to the end of the reinforcing pipe (41) away from the heat exchanger (32).

6. The liquid nitrogen heat exchange circulation device according to claim 1, characterized in that, The bottom of the adjustment plate (2) is fixedly connected to a support leg (21), and a Y-shaped support plate (22) is fixedly connected between the support legs (21). The servo motor (71) is mounted on the Y-shaped support plate (22).

7. A liquid nitrogen heat exchange circulation device according to claim 6, characterized in that, An additional protective shell (13) is fixedly connected to the outer peripheral wall of the T-shaped protective shell body (1), and the additional protective shell (13) is used to protect the solenoid valve (31).

8. The liquid nitrogen heat exchange circulation device according to claim 1, characterized in that, A solenoid valve (31) is provided on one side of the storage tank (3).

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