A refrigerant leak detector

Abstract

This invention provides a refrigerant leak detector, in which a first sealing connector and a second sealing connector are respectively connected to the input and output ends of the pipe or equipment under test. The nozzle of a balloon is fitted onto a conical connecting nozzle. By rotating a retaining ring, the retaining ring moves along a threaded tube, causing the retaining ring to engage with the conical connecting nozzle and compress and fix the input end of the balloon nozzle. A pressure pump inputs high-pressure air into the pipe or equipment under test through a pressure output pipe and the first sealing connector. After passing through the pipe or equipment, the high-pressure air enters the balloon through the second sealing connector, pressure pipe, threaded tube, and conical connecting nozzle, inflating the balloon. A pressure gauge detects the air pressure inside the pressure pipe. When the air pressure reaches a preset value, the pressure pump stops working. After a preset time, the pressure gauge reading or the size of the balloon can be observed to determine whether the pipe or equipment under test is leaking refrigerant.

Description

Technical Field

[0001] This utility model relates to the field of refrigerant detection, and in particular to a refrigerant leak detector. Background Technology

[0002] Refrigerant is a substance that transfers heat through evaporation and condensation in air conditioning systems. In other words, refrigerant is the working fluid used in refrigeration and air conditioning systems to transfer heat energy and produce a cooling effect. Refrigerants can be classified into primary and secondary refrigerants based on their working method. They can also be classified into natural and synthetic refrigerants based on their material properties. Refrigerant is a substance that easily absorbs heat to become a gas and easily releases heat to become a liquid. Early refrigeration plants used ammonia as a refrigerant; ammonia releases heat and becomes a liquid when pressurized, and absorbs heat when the high-pressure liquid is depressurized to become a gas. Air conditioners commonly used in daily life use chlorofluorocarbons (CFCs) as refrigerants. However, previously used CFCs damaged the ozone layer, and scientists have developed CFCs that do not. An ideal refrigerant is non-toxic, non-explosive, non-corrosive to metals and non-metals, non-flammable, easily detectable in case of leakage, chemically stable, non-destructive to lubricating oils, has a high latent heat of vaporization, and is environmentally friendly.

[0003] However, refrigerant leak detection equipment is an instrument used for refrigerant leak detection. Traditional refrigerant leak detection equipment, such as the technical solution protected by the patent application number CN201821162365.4, which is entitled "Refrigerant Leak Detection Equipment", does not have a intuitive leak detection method. Utility Model Content

[0004] Therefore, it is necessary to provide a refrigerant leak detector to address the technical problem that traditional refrigerant leak detection equipment does not provide a clear and intuitive method for leak detection.

[0005] A refrigerant leak detector includes: a receiving plate, a pressure testing mechanism, a pressure measuring mechanism, and a pressure display mechanism;

[0006] The pressure-pressing mechanism includes a first bracket, a pressure pump, a pressure output pipe, and a first sealing connector; the pressure pump is connected to the receiving plate through the first bracket; the output end of the pressure pump is connected to the first sealing connector through the pressure output pipe.

[0007] The pressure measuring mechanism includes a second bracket, a pressure tube, a pressure gauge, and a second sealing connector; the pressure tube is connected to the receiving plate through the second bracket; the pressure gauge is mounted on the pressure tube, and one end of the pressure tube is connected to the second sealing connector;

[0008] The pressure-displaying mechanism includes a threaded tube, a tapered connecting nozzle, a retaining ring, and a balloon. The threaded tube is connected to the end of the pressure tube furthest from the second sealing connector, and the wider end of the tapered connecting nozzle is connected to the end of the threaded tube furthest from the pressure tube. The diameter of the wider end of the tapered connecting nozzle is larger than the diameter of the threaded tube. The retaining ring is adapted to the threaded tube, is sleeved on the threaded tube, and is screwed onto the threaded tube. The balloon's inflator is sleeved on the tapered connecting nozzle. A first annular sealing gasket is provided at the end of the retaining ring near the tapered connecting nozzle, and a second annular sealing gasket is provided at the end of the tapered connecting nozzle near the retaining ring. The first annular sealing gasket, in conjunction with the second annular sealing gasket, seals and compresses the input end of the balloon's inflator.

[0009] In one embodiment, the threaded tube and the pressure tube are integrally formed.

[0010] In one embodiment, the first annular sealing gasket is a soft rubber gasket.

[0011] In one embodiment, the first annular sealing gasket is a soft silicone gasket.

[0012] In one embodiment, the first annular sealing gasket is a soft plastic gasket.

[0013] In one embodiment, the second annular sealing gasket is a soft rubber gasket.

[0014] In one embodiment, the second annular sealing gasket is a soft silicone gasket.

[0015] In one embodiment, the second annular sealing gasket is a soft plastic gasket.

[0016] In one embodiment, a rotating handle is provided on the outer wall of the fixing ring.

[0017] In one embodiment, the rotating handle and the fixing ring are integrally formed.

[0018] During operation, the aforementioned refrigerant leak detector connects the first and second sealing connectors to the input and output ends of the pipe or equipment under test, respectively. The balloon's nozzle is fitted onto the conical connector. By rotating the retaining ring, it moves along the threaded tube, compressing and fixing the input end of the balloon's nozzle with the conical connector. The first annular sealing gasket on the retaining ring and the second annular sealing gasket on the conical connector provide a seal. A pressure pump inputs high-pressure air into the pipe or equipment under test through the pressure output pipe and the first sealing connector. The high-pressure air passes through the pipe or equipment, then through the second sealing connector, pressure pipe, threaded tube, and conical connector into the balloon, inflating it. A pressure gauge detects the air pressure within the pressure pipe. When the pressure reaches a preset value, the pressure pump stops operating. After a preset time, the pressure gauge reading or the size of the balloon can be visually observed to determine if the pipe or equipment under test is leaking refrigerant. The aforementioned refrigerant leak detector has a simple and ingenious structure. By visually observing the size of the balloon, it is possible to determine whether the pipe or equipment under test is leaking refrigerant. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the refrigerant leak detector in one embodiment;

[0020] Figure 2 This is a partially enlarged schematic diagram of a refrigerant leak detector in one embodiment. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Please refer to the following: Figures 1 to 2 This utility model provides a refrigerant leak detector 10, which includes: a receiving plate 100, a pressure testing mechanism 200, a pressure measuring mechanism 300, and a pressure display mechanism 400.

[0027] The pressure-pressing mechanism 200 includes a first bracket 210, a pressure pump 220, a pressure output pipe 230, and a first sealing connector 240. The pressure pump 220 is connected to the receiving plate 100 via the first bracket 210. The output end of the pressure pump 220 is connected to the first sealing connector 240 via the pressure output pipe 230.

[0028] The pressure measuring mechanism 300 includes a second bracket 310, a pressure tube 320, a pressure gauge 330, and a second sealing connector 340. The pressure tube 320 is connected to the receiving plate 100 via the second bracket 310. The pressure gauge 330 is mounted on the pressure tube 320, and one end of the pressure tube 320 communicates with the second sealing connector 340. In this embodiment, both the first sealing connector 240 and the second sealing connector 340 are internal expansion type internal bore sealing connectors.

[0029] The pressure-indicating mechanism 400 includes a threaded tube 410, a tapered connecting nozzle 420, a retaining ring 430, and a balloon 440. The threaded tube 410 is connected to the end of the pressure tube 320 furthest from the second sealing connector 340. In this embodiment, the threaded tube 410 and the pressure tube 320 are integrally formed. The wider end of the tapered connecting nozzle 420 is connected to the end of the threaded tube 410 furthest from the pressure tube 320. The diameter of the wider end of the tapered connecting nozzle 420 is larger than the diameter of the threaded tube 410. The retaining ring 430 is adapted to the threaded tube 410, and is sleeved on and screwed onto the threaded tube 410. The blowing nozzle of the balloon 440 is sleeved on the tapered connecting nozzle 420. A first annular sealing gasket 431 is provided at the end of the retaining ring 430 near the tapered connecting nozzle 420. In this embodiment, the first annular sealing gasket 431 is a soft rubber gasket. In another embodiment, the first annular sealing gasket 431 is a soft silicone gasket. In another embodiment, the first annular sealing gasket 431 is a soft plastic gasket. A second annular sealing gasket 421 is provided at one end of the conical connecting nozzle 420 near the fixing ring 430. In this embodiment, the second annular sealing gasket 421 is a soft rubber gasket. In another embodiment, the second annular sealing gasket 421 is a soft silicone gasket. In yet another embodiment, the second annular sealing gasket 421 is a soft plastic gasket. The first annular sealing gasket 431, in conjunction with the second annular sealing gasket 421, seals and compresses the input end of the balloon 440's inflator nozzle, securing it in place.

[0030] To facilitate rotation of the fixed ring 430, in one embodiment, a rotating handle 432 is provided on the outer wall of the fixed ring 430. Furthermore, the rotating handle 432 is integrally formed with the fixed ring 430. Thus, the fixed ring 430 can be rotated by rotating the handle.

[0031] During operation, the refrigerant leak detector 10 connects the first sealing connector 240 and the second sealing connector 340 to the input and output ends of the pipe or equipment under test, respectively. The nozzle of the balloon 440 is fitted onto the conical connecting nozzle 420. By rotating the fixing ring 430, the fixing ring 430 moves along the threaded pipe 410, causing the fixing ring 430 to press and fix the input end of the balloon 440's nozzle in conjunction with the conical connecting nozzle 420. The first annular sealing gasket 431 on the fixing ring 430 and the second annular sealing gasket 421 on the conical connecting nozzle 420 provide a sealing and fixing effect. The pressure pump 220 inputs high-pressure air towards the pipe or equipment under test through the pressure output pipe 230 and the first sealing connector 240. After passing through the pipe or equipment under test, the high-pressure air enters the balloon 440 through the second sealing connector 340, the pressure pipe 320, the threaded pipe 410, and the conical connecting nozzle 420, inflating the balloon 440. Pressure gauge 330 can detect the air pressure inside pressure tube 320. When the air pressure reaches the preset pressure value, pressure pump 220 stops working. After a preset time, the reading on pressure gauge 330 or the size of balloon 440 can be visually observed to determine whether the pipe or equipment under test is leaking refrigerant. The above-mentioned refrigerant leak detector 10 has a simple and ingenious structure. By visually observing the size of balloon 440, it is possible to determine whether the pipe or equipment under test is leaking refrigerant.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A refrigerant leak detector, characterized in that, include: We undertake the installation of carrier plates, pressure testing mechanisms, pressure measuring mechanisms, and pressure display mechanisms. The pressurization mechanism includes a first bracket, a pressure pump, a pressure output pipe, and a first sealing connector. The pressure pump is connected to the receiving plate via the first bracket; the output end of the pressure pump is connected to the first sealing connector via the pressure output pipe. The pressure measuring mechanism includes a second bracket, a pressure tube, a pressure gauge, and a second sealing connector; the pressure tube is connected to the receiving plate through the second bracket; the pressure gauge is mounted on the pressure tube, and one end of the pressure tube is connected to the second sealing connector; The pressure-displaying mechanism includes a threaded tube, a tapered connecting nozzle, a retaining ring, and a balloon. The threaded tube is connected to the end of the pressure tube furthest from the second sealing connector, and the wider end of the tapered connecting nozzle is connected to the end of the threaded tube furthest from the pressure tube. The diameter of the wider end of the tapered connecting nozzle is larger than the diameter of the threaded tube. The retaining ring is adapted to the threaded tube, is sleeved on the threaded tube, and is screwed onto the threaded tube. The balloon's inflator is sleeved on the tapered connecting nozzle. A first annular sealing gasket is provided at the end of the retaining ring near the tapered connecting nozzle, and a second annular sealing gasket is provided at the end of the tapered connecting nozzle near the retaining ring. The first annular sealing gasket, in conjunction with the second annular sealing gasket, seals and compresses the input end of the balloon's inflator.

2. The refrigerant leak detector according to claim 1, characterized in that, The threaded tube and the pressure tube are integrally formed.

3. The refrigerant leak detector according to claim 1, characterized in that, The first annular sealing gasket is a soft rubber gasket.

4. The refrigerant leak detector according to claim 1, characterized in that, The first annular sealing gasket is a soft silicone gasket.

5. The refrigerant leak detector according to claim 1, characterized in that, The first annular sealing gasket is a soft plastic gasket.

6. The refrigerant leak detector according to claim 1, characterized in that, The second annular sealing gasket is a soft rubber gasket.

7. The refrigerant leak detector according to claim 1, characterized in that, The second annular sealing gasket is a soft silicone gasket.

8. The refrigerant leak detector according to claim 1, characterized in that, The second annular sealing gasket is a soft plastic gasket.

9. The refrigerant leak detector according to claim 1, characterized in that, A rotating handle is provided on the outer wall of the fixed ring.

10. The refrigerant leak detector according to claim 9, characterized in that, The rotating handle and the fixing ring are integrally formed.

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