Leak detection device for refrigerant circulating system of ground source heat pump air conditioner

Abstract

The utility model relates to the technical field of ground source heat pump systems, in particular to a ground source heat pump air-conditioning refrigerant circulating system leak hunting device, which comprises a detector body, positioning anti-drop components are mounted on the left side and the right side of the detector body, a display screen and operation keys are fixedly mounted on the front surface of the detector body, and the display screen and the operation keys are fixedly mounted on the front surface of the detector body. The front side of the detector body is provided with a protective cover, the top of the detector body is provided with an air entraining detection assembly, and the back surface of the detector body is fixedly connected with an elastic strap. According to the utility model, the protective covers, the positioning anti-falling assembly and the sealing rubber pad are arranged, so that the two protective covers can be matched to cover the display screen and the operation keys; and by arranging the air entraining detection assembly, external air can be intensively introduced into the auxiliary frame, gas concentration detection is carried out in cooperation with a gas concentration sensor, leaked refrigerants can be directly discharged through working of a radial flow fan, and adsorption purification is carried out in cooperation with an activated carbon adsorption net plate.

Description

Technical Field

[0001] The utility model relates to the technical field of ground source heat pump systems, in particular to a leakage detection device for a ground source heat pump air conditioner refrigerant circulation system. Background Art

[0002] In the ground source heat pump system, ground source heat pump air conditioning is a new type of air conditioning technology that can realize the transfer of low-level heat energy to high-level heat energy. When used, the refrigerant is mostly gas. In order to ensure the stability of the air conditioner operation, a leak detection device will be used to detect the area near the transmission pipeline.

[0003] After searching, the patent number is CN216116539U, and the name is a utility model of a low-concentration refrigerant leakage detector, which includes a detector body and a placement plate. Through research and analysis, it is found that although it is easy to install and the detector is easy to carry, it still has the following disadvantages to a certain extent.

[0004] For example, when the device is carried and used, it does not have the function of shielding and protection. The buttons on the device are easily touched by mistake, affecting the normal use of the device, and the display is easily damaged by collision. At the same time, it does not have the function of drainage and purification. The leakage of refrigerant during the test affects the staff. There are certain limitations. In order to solve the above technical problems, we designed a ground source heat pump air conditioner refrigerant circulation system leak detection device. Utility Model Content

[0005] The purpose of the utility model is to provide a leak detection device for the refrigerant circulation system of a ground source heat pump air conditioner, which has the advantages of shielding protection and drainage purification, and solves the problems that the device does not have the function of shielding protection, buttons on the equipment are easily touched by mistake, affecting the normal use of the equipment, and the display is easily damaged by collision, and at the same time, it does not have the function of drainage purification, and the leakage of refrigerant during the test affects the staff.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ground source heat pump air conditioning refrigerant circulation system leak detection device, comprising a detector body, positioning and anti-detachment components are installed on the left and right sides of the detector body, a display screen and operation buttons are fixedly installed on the front surface of the detector body, a protective cover is provided on the front side of the detector body, an air bleed detection component is installed on the top of the detector body, and an elastic band is fixedly connected to the back surface of the detector body.

[0007] Preferably, the positioning and anti-detachment assembly includes a connecting seat and a fixing seat, the surface of the connecting seat is fixedly connected to the connection of the protective cover, and the surface of the fixing seat is fixedly connected to the connection of the detector body.

[0008] Preferably, the connecting seat is movably mounted on the front side of the fixing seat, and a second positioning groove is formed on the top of the fixing seat.

[0009] Preferably, a positioning damping block is slidably mounted in the inner cavity of the second positioning groove, and a first positioning groove used in conjunction with the positioning damping block is formed on the top of the connecting seat.

[0010] Preferably, the bleed air detection assembly includes an auxiliary frame and a gas concentration sensor, the bottom of the auxiliary frame is fixedly connected to the top of the detector body, and the bottom of the gas concentration sensor is fixedly connected to the top of the detector body.

[0011] Preferably, a cover plate is fixedly connected to the top of the auxiliary frame, and an axial flow fan is embedded and installed at the center of the top of the cover plate.

[0012] Preferably, the four sides of the auxiliary frame are all fixedly inlaid with drainage covers, and the outer ring of the drainage cover is connected to a solenoid valve.

[0013] Preferably, an activated carbon adsorption mesh plate is fixedly installed on the outside of the inner cavity of the solenoid valve, and auxiliary frames are fixedly connected to the left and right sides of the inner cavity of the auxiliary frame, and a radial flow fan is fixedly connected to the surface of the auxiliary frame.

[0014] Preferably, the number of the positioning and anti-dropping components is four, and sealing rubber pads are fixedly connected to opposite sides of the two protective covers.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model has the advantages of shielding and protection by providing a protective cover, a positioning anti-drop assembly and a sealing rubber pad. The two protective covers can cover the display screen and the operation buttons, thereby preventing accidental touches when carrying, thereby improving the overall safety of the device;

[0017] 2. The utility model has the advantage of drainage purification by setting up an air bleed detection component. When the axial flow fan is in operation, the outside air can be concentratedly introduced into the auxiliary frame, and the gas concentration can be detected in conjunction with the gas concentration sensor. The leaked refrigerant can also be directly discharged by the radial flow fan, and the activated carbon adsorption mesh plate can be used for adsorption purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the detector body of the utility model;

[0020] Figure 3 This is a rear perspective view of the structure of the utility model;

[0021] Figure 4 This is a rear perspective view of the protective cover of the utility model;

[0022] Figure 5 For this utility model Figure 4 Middle A is an enlarged schematic diagram;

[0023] Figure 6 It is a three-dimensional schematic diagram of the utility model when the air bleed detection component is separated.

[0024] In the figure: 1. detector body; 2. bleed air detection assembly; 201. axial flow fan; 202. cover plate; 203. solenoid valve; 204. drainage cover; 205. activated carbon adsorption mesh plate; 206. auxiliary frame; 207. gas concentration sensor; 208. radial flow fan; 209. auxiliary frame; 3. protective cover; 4. positioning anti-detachment assembly; 401. positioning damping block; 402. first positioning groove; 403. second positioning groove; 404. connecting seat; 405. fixing seat; 5. display screen; 6. operation button; 7. elastic band; 8. sealing rubber pad. DETAILED DESCRIPTION

[0025] See also Figure 1-Figure 6 , a ground source heat pump air conditioning refrigerant circulation system leak detection device, comprising a detector body 1, a positioning anti-drop assembly 4 is installed on both sides of the detector body 1, a display screen 5 and an operation button 6 are fixedly installed on the front surface of the detector body 1, a protective cover 3 is arranged on the front side of the detector body 1, an air bleed detection assembly 2 is installed on the top of the detector body 1, and an elastic band 7 is fixedly connected to the back surface of the detector body 1;

[0026] See also Figure 1 , Figure 2 and Figure 5 The positioning anti-drop assembly 4 includes a connecting seat 404 and a fixing seat 405, the surface of the connecting seat 404 is fixedly connected to the connection of the protective cover 3, and the surface of the fixing seat 405 is fixedly connected to the connection of the detector body 1;

[0027] See also Figure 5 The connecting seat 404 is movably mounted on the front side of the fixing seat 405, and a second positioning groove 403 is formed on the top of the fixing seat 405;

[0028] Please refer to Figure 5 The inner cavity of the second positioning groove 403 is slidably mounted with a positioning damping block 401, and the top of the connecting seat 404 is provided with a first positioning groove 402 used in conjunction with the positioning damping block 401;

[0029] See also Figure 1 and Figure 6The bleed gas detection assembly 2 includes an auxiliary frame 206 and a gas concentration sensor 207, the bottom of the auxiliary frame 206 is fixedly connected to the top of the detector body 1, and the bottom of the gas concentration sensor 207 is fixedly connected to the top of the detector body 1;

[0030] See also Figure 6 The top of the auxiliary frame 206 is fixedly connected with a cover plate 202, and the center of the top of the cover plate 202 is inlaid with an axial flow fan 201;

[0031] See also Figure 6 , the four sides of the auxiliary frame 206 are fixedly inlaid with a drainage cover 204, and the outer ring of the drainage cover 204 is connected to the electromagnetic valve 203;

[0032] See also Figure 6 An activated carbon adsorption screen 205 is fixedly installed on the outer side of the inner cavity of the solenoid valve 203, and auxiliary frames 209 are fixedly connected to the left and right sides of the inner cavity of the auxiliary frame 206, and a radial flow fan 208 is fixedly connected to the surface of the auxiliary frame 209;

[0033] See also Figure 1 and Figure 4 , the number of the positioning and anti-dropping components 4 is four, and a sealing rubber pad 8 is fixedly connected to the opposite side of the two protective covers 3;

[0034] The detection signal of the gas concentration sensor 207 is transmitted to the detector body 1 and displayed numerically on the display screen 5, which is convenient for the staff to observe and view;

[0035] By setting the cover plate 202, the fixed installation requirements of the axial flow fan 201 can be met, and the cover plate 202 covers the auxiliary frame 206 to prevent the gas from escaping at will. By setting the solenoid valve 203, it can be flexibly opened or closed to meet the gas circulation requirements in the open state.

[0036] By providing the guide cover 204, the gas in the auxiliary frame 206 can be guided and transmitted to the solenoid valve 203, and by providing the activated carbon adsorption mesh plate 205, the gas flowing through can be adsorbed and purified to ensure the cleanliness of the discharged gas;

[0037] By providing a gas concentration sensor 207, the gas concentration in the auxiliary frame 206 can be detected. By providing a radial fan 208, the gas can be radially moved in a working state, so that the gas can be quickly discharged from the drainage cover 204 and the solenoid valve 203. By providing an auxiliary frame 209, the auxiliary frame 206 and the radial fan 208 can be connected to meet the fixed installation requirements of the radial fan 208.

[0038] By providing the protective cover 3 and the sealing rubber pad 8, the display screen 5 and the operation button 6 can be covered and shielded to prevent the display screen 5 from being accidentally touched and the operation button 6 from being damaged, and the sealing rubber pad 8 can be elastically sealed;

[0039] By providing the positioning damping block 401, the first positioning groove 402 and the second positioning groove 403, the positioning and anti-rotation function can be achieved, and the connecting seat 404 and the protective cover 3 can be prevented from rotating at will when the positioning damping block 401 is plugged in. By providing the elastic strap 7, it is convenient for the staff to pass through the hands and be elastically bound, thereby helping to improve the holding stability of the detector body 1.

[0040] In actual application, a dustproof net is installed on the top of the axial flow fan 201 to prevent dust impurities in the air from affecting the service life of the axial flow fan 201.

[0041] When in use, all components are in the initial installation state. In the carrying state, the positioning damping block 401 passes through the first positioning groove 402 and is placed in the second positioning groove 403. In this state, the protective cover 3 can be prevented from rotating at will, and then the protective cover 3 protects and shields the display screen 5 and the operation button 6 to achieve the purpose of preventing accidental touch and collision. When leakage detection is required, the positioning damping block 401 is moved up to disengage from the first positioning groove 402 and the second positioning groove 403, and then the protective cover 3 is rotated to open, the display screen 5 and the operation button 6 are exposed, and then the positioning damping block 401 is moved down to reset to prevent the protective cover 3 from rotating at will. The staff passes their hands through the elastic strap 7 to facilitate the grip of the detector body 1, and then holds the device. The air inlet detection component 2 is placed close to the position to be detected in the ground source heat pump system, and the axial flow fan 201 is synchronously controlled to work, so that the gas at the position to be detected is concentrated and introduced into the auxiliary frame 206, and the solenoid valve 203 is in a closed state, wherein the gas concentration is detected by the gas concentration sensor 207, and the detection signal is transmitted to the detector body 1 and displayed on the display screen 5 for the convenience of observation by the staff. When the staff observes that the gas concentration exceeds the standard, the solenoid valve 203 is controlled to open and the radial fan 208 is operated, wherein the radial fan 208 accelerates the flow of air, and the gas carrying refrigerant is discharged from the inlet hood 204 and the solenoid valve 203, so that the gas is adsorbed and purified by the activated carbon adsorption mesh plate 205, which is more in line with the actual needs of users.

[0042] In summary: the ground source heat pump air conditioning refrigerant circulation system leak detection device, by setting the air inlet detection component 2, the protective cover 3 and the positioning anti-detachment component 4, solves the problem that the device does not have the shielding and protection function, the buttons on the equipment are easily touched by mistake, affecting the normal use of the equipment, and the display is easily damaged by collision. At the same time, it does not have the drainage and purification function, and the leakage of refrigerant during the test affects the staff.

Claims

1. A ground source heat pump air conditioning refrigerant circulation system leak detection device, comprising a detector body (1), characterized in that: Positioning and anti-slip components (4) are installed on both the left and right sides of the detector body (1); a display screen (5) and operation buttons (6) are fixedly installed on the front surface of the detector body (1); a protective cover (3) is arranged on the front side of the detector body (1); an air bleed detection component (2) is installed on the top of the detector body (1); and an elastic band (7) is fixedly connected to the back surface of the detector body (1).

2. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 1, characterized in that: The positioning anti-drop assembly (4) comprises a connecting seat (404) and a fixing seat (405), the surface of the connecting seat (404) being fixedly connected to the connection point of the protective cover (3), and the surface of the fixing seat (405) being fixedly connected to the connection point of the detector body (1).

3. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 2, characterized in that: The connecting seat (404) is movably mounted on the front side of the fixing seat (405), and a second positioning groove (403) is formed on the top of the fixing seat (405).

4. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 3, characterized in that: A positioning damping block (401) is slidably mounted in the inner cavity of the second positioning groove (403), and a first positioning groove (402) for use in conjunction with the positioning damping block (401) is provided on the top of the connecting seat (404).

5. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 1, characterized in that: The bleed air detection assembly (2) comprises an auxiliary frame (206) and a gas concentration sensor (207), wherein the bottom of the auxiliary frame (206) is fixedly connected to the top of the detector body (1), and the bottom of the gas concentration sensor (207) is fixedly connected to the top of the detector body (1).

6. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 5, characterized in that: The top of the auxiliary frame (206) is fixedly connected to a cover plate (202), and an axial flow fan (201) is embedded and installed at the center of the top of the cover plate (202).

7. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 6, characterized in that: The four sides of the auxiliary frame (206) are all fixedly inlaid with a flow guide cover (204), and the outer ring of the flow guide cover (204) is connected to a solenoid valve (203).

8. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 7, characterized in that: An activated carbon adsorption mesh plate (205) is fixedly installed on the outside of the inner cavity of the solenoid valve (203), and auxiliary frames (209) are fixedly connected to the left and right sides of the inner cavity of the auxiliary frame (206), and a radial flow fan (208) is fixedly connected to the surface of the auxiliary frame (209).

9. The ground source heat pump air conditioning refrigerant circulation system leak detection device according to claim 1, characterized in that: The number of the positioning and anti-slipping components (4) is four, and a sealing rubber pad (8) is fixedly connected to the opposite side of the two protective covers (3).

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