CN204666314U - For the valve member leakage detection apparatus of refrigeration industry - Google Patents

Abstract

A leak detection device for valve parts used in the refrigeration industry, including a nitrogen connection pipe 1, a gasket 2, a bracket 3, a baffle plate 4, a screw 5, a handle 6 and an exhaust port 7, a nitrogen connection pipe 1, a gasket 2, a baffle The plate 4, the lead screw 5 and the handle 6 are all fixed on the bracket, the nitrogen connection pipe 1 is connected to the nitrogen cylinder, the gasket 2 for sealing is installed on the nitrogen connection pipe 1, the baffle plate 4 and the lead screw 5 fix the solenoid valve on the device, The direction of the solenoid valve is that the end close to the nitrogen pipe is the inlet. The beneficial effect of the utility model is that the structure is reasonable, and a closed space is formed at the inlet of the valve element by using the clamping device and the sealing pad, which can withstand relatively high pressure without welding. It avoids the repair problem of valve failure after the refrigeration system is running, avoids multiple welding of valve parts, and is beneficial to the maintenance and treatment of valve parts.

Description

Valve leak detection device for refrigeration industry

technical field

The invention relates to the field of valve part detection, in particular to a valve part leak detection device used in the refrigeration industry.

Background technique

In the refrigeration system of backflushing frost, the solenoid valve is required to be in a completely closed and sealed state when not flushing frost. If the solenoid valve leaks, it will affect the normal operation of the system. The conventional practice is to find the leakage of the valve parts after the system is running, so that there will be residual scale in the system during repair, and it is difficult to re-weld the solenoid valve after welding.

Contents of the invention

The technical problem to be solved by the present invention is to provide a valve element leak detection device with a reasonable structure, which can realize whether the sealing performance of the valve element meets the operation requirements of the system before the valve element is installed.

In order to solve the above-mentioned technical problems, the present invention provides a valve leak detection device used in the refrigeration industry, including a nitrogen connection pipe 1, a gasket 2, a bracket 3, a baffle plate 4, a lead screw 5, a handle 6 and an exhaust port 7, Nitrogen connection pipe 1, sealing gasket 2, baffle plate 4, lead screw 5 and handle 6 are all fixed on the bracket, nitrogen connection pipe 1 is connected to nitrogen cylinder, and sealing gasket 2, baffle plate 4 and leading screw for sealing are installed on nitrogen connection pipe 1 5 Fix the solenoid valve to the device, the direction of the solenoid valve is that the end close to the nitrogen pipe is the inlet.

Preferably, the gasket 2 is made of rubber.

Preferably, the nitrogen connection pipe 1, the bracket 3, the baffle plate 4, the lead screw 5, the handle 6 and the exhaust port 7 are made of steel.

Preferably, the end surface area of the gasket 2 and the baffle 4 is not less than the area of a Φ50 circle, and adopts a square structure.

Preferably, the distance between the gasket 2 and the baffle 4 is 100mm-350mm.

Preferably, the lead screw 5 is used to realize the adjustable distance, so as to meet the use of valve parts with different specifications.

The beneficial effect of the invention is that the structure is reasonable, and a closed space is formed at the inlet of the valve element by using the clamping device and the sealing pad, which can bear high pressure without welding. It avoids the repair problem of valve failure after the refrigeration system is running, avoids multiple welding of valve parts, and is beneficial to the maintenance and treatment of valve parts.

Description of drawings

Fig. 1 is a front view of the overall device structure of the present invention.

Fig. 2 is a top view of the overall device structure of the present invention.

Fig. 3 is a schematic diagram of leak detection of the device of the present invention.

Detailed ways

As shown in Figures 1 and 2, a valve leak detection device used in the refrigeration industry includes a nitrogen connection pipe 1, a gasket 2, a bracket 3, a baffle 4, a screw 5, a handle 6 and an exhaust port 7, and nitrogen Connecting pipe 1, gasket 2, baffle 4, lead screw 5 and handle 6 are all fixed on the bracket, nitrogen connecting pipe 1 is connected to nitrogen cylinder, and nitrogen connecting pipe 1 is equipped with sealing gasket 2, baffle 4 and leading screw 5 for sealing Fix the solenoid valve to the device, and the direction of the solenoid valve is that the end close to the nitrogen pipe is the inlet.

The sealing pad 2 is made of rubber, which has high sealing strength, good effect and can be reused; the nitrogen connection pipe 1, bracket 3, baffle plate 4, lead screw 5, handle 6 and exhaust port 7 are made of steel, and the cost is low. The end surface area of the gasket 2 and the baffle 4 is not less than the area of Φ50 circle, and adopts a square structure, which minimizes the overall space occupied by the device and facilitates storage. At the same time, the stability of the device is the strongest, ensuring that the device is not easy to fall when testing valve parts. The distance between the gasket 2 and the baffle 4 is 100mm-350mm, such a set of devices can detect valves of all specifications in the company. When testing valves of different specifications, just use the screw 5 to adjust the distance to meet the requirements. use.

As shown in Figure 3, put the device as a whole into water or use a leak detector to check whether there is gas discharged from the solenoid valve. If there are bubbles, it means that the solenoid valve is leaking, and if there are no bubbles, it means that the solenoid valve is not leaking.

Although the present invention has been illustrated and described in terms of preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims of the present invention.

Claims (6)

1. A valve leak detection device used in the refrigeration industry, characterized in that it comprises: a nitrogen connection (1), a gasket (2), a bracket (3), a baffle (4), a lead screw (5), The handle (6) and the exhaust port (7), the nitrogen connection pipe (1), the gasket (2), the baffle plate (4), the lead screw (5) and the handle (6) are all fixed on the bracket, the nitrogen connection pipe (1 ) to connect the nitrogen cylinder, the nitrogen connection pipe (1) is equipped with a gasket (2) for sealing, the baffle (4) and the lead screw (5) fix the solenoid valve to the device, and the direction of the solenoid valve is close to the direction of the nitrogen pipe One end is the import. 2. The leak detection device for valve parts used in the refrigeration industry according to claim 1, characterized in that the gasket (2) is made of rubber. 3. The leak detection device for valve parts used in the refrigeration industry according to claim 1, characterized in that the nitrogen connection pipe (1), bracket (3), baffle plate (4), lead screw (5), handle (6 ) and exhaust port (7) are made of steel. 4. The leak detection device for valve parts used in the refrigeration industry according to claim 1, characterized in that the end surface area of the gasket (2) and the baffle (4) is not less than the area of a Φ50 circle, and adopts a square structure. 5. The leak detection device for valve parts used in the refrigeration industry according to claim 1, characterized in that the distance between the gasket (2) and the baffle (4) is 100mm-350mm. 6. The leak detection device for valve parts used in the refrigeration industry according to claim 5, characterized in that the distance is adjustable through a lead screw (5).