Air frame leak detection pressure stabilizing device

Abstract

The utility model discloses a kind of gas frame leak detection pressure stabilizing device, including filter, the filter connection compressed gas pipeline, the filter be connected gas holder by check valve, the filter still connect booster valve, the booster valve connection gas holder, the gas holder outlet is provided with pressure detection device, the pressure detection device electric connection booster valve, the gas holder is connected gas frame leak detection mechanism through pressure detection device. When textile gas frame factory leak detection is detected, compressed air is sent to gas frame leak detection device after the gas frame leak detection pressure stabilizing device of the utility model, provides stable, meets the compressed air source of pressure size requirement for gas frame leak detection device, safe, reliable, and it is convenient for front-line operator to control gas frame leak detection result.

Description

Technical Field

[0001] The utility model belongs to the technical field of air frame leak detection for textile machinery, and in particular relates to a voltage stabilizing device for air frame leak detection. Background Art

[0002] The core purpose of leak detection monitoring for an air frame of textile machinery is to detect whether there is gas leakage in the air frame system and ensure that its sealing performance meets the design requirements. When conducting ex-factory inspection on the air frame, the inventor of the present patent designed a simple and ingenious air frame leak detection device, whose main principle is: 1. Connect the measuring joint of the leak detection device with the inlet joint of the air frame through an air pipe, and block the main nozzle of the weft insertion mechanism of the air frame; 2. Open the intake valve to start the detection device to inflate the air frame, and close the intake valve after the pressure reaches a preset pressure; 3. Hold the pressure for 30 seconds and observe the pressure drop change on the detection device, and it is considered qualified if the pressure drop does not exceed a certain value; 4. After reading the value, remove the air pipe and open the air valve to complete the detection. If there is a leakage point and the reading is unqualified, rework is required, and leak testing needs to be carried out again after rework until the leak test is qualified.

[0003] The air frame leak detection device requires a stable compressed air source. Unstable compressed air pressure will affect the detection result and lead to inaccurate measurement results. For a compressed air source provided by a factory with a rated air pressure of, for example, 0.6MPa, due to pressure loss in the air path, it is often impossible to guarantee 0.6MPa during testing, and the pressure may be slightly lower, which results in that the pressure for inflating the air frame cannot reach the preset pressure and subsequent detection cannot be carried out. If the initial pressure of compressed air cannot reach the set value, such as 0.5MPa, even if there is no pressure drop during the pressure holding stage in testing, the sealing performance may still fail to meet the requirements when the air frame is assembled on textile machinery. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a voltage stabilizing device for air frame leak detection.

[0005] The utility model is implemented as follows: a voltage stabilizing device for air frame leak detection comprises a filter, the filter is connected with a compressed gas pipeline, compressed air enters the voltage stabilizing device for air frame leak detection through the filter, the filter filters particles in the air to ensure the normal operation of the voltage stabilizing device for air frame leak detection, the filter is connected with a gas storage tank through a one-way valve, the filter is further connected with a booster valve, the booster valve is connected with the gas storage tank, a pressure detection device is arranged at an outlet of the gas storage tank, the pressure detection device is electrically connected with the booster valve, when compressed air is output from the gas storage tank, the pressure detection device detects according to a preset pressure value, if the pressure reaches the standard, the compressed air is output directly, if the pressure does not reach the standard, a feedback is sent to the booster valve, the booster valve is started to increase the pressure in the gas storage tank to make it reach the preset pressure, and such circulation ensures that stable air pressure is output, the gas storage tank is connected with an air frame leak detection mechanism through the pressure detection device.

[0006] The pressure detection device is set to a pressure of 0.6 MPa, while the upper limit of the safe operating pressure of the gas storage tank is 1 MPa. The upper limit of the safe operating pressure of the gas storage tank is much higher than the pressure setting of the pressure detection device, ensuring the safe operation of the leak detection device.

[0007] When the air frame leak detection device is working, the compressed air is no longer directly connected to the air frame inlet connector. Instead, it is connected through a pressure stabilizing device. Specifically, the pressure detection device is set to 0.6MPa during operation. When the pressure is stable, the pressure drop during the air frame pressure holding stage is less than 0.005MPa, that is, the value is greater than 0.595MPa. This is considered to be a qualified air frame seal, which is easy for front-line operators to control.

[0008] The aforementioned booster valve is a pneumatic booster valve with an inlet pressure range of 0.1-1 MPa and a maximum outlet pressure of 1 MPa. That is, the compressed air pressure range can be as low as 0.1 MPa, and after being boosted by the booster valve, it can stably output compressed air of any value below 1 MPa (such as 0.6 MPa).

[0009] This invention is safe and reliable, ensuring accurate leak detection results for the air frame and making it easier for frontline operators to control the leak detection results. Specific benefits include: 1. Compressed air is delivered to the air frame leak detection device after passing through the leak detection pressure stabilization device, providing a stable compressed air source that meets the required pressure; 2. The pressure stabilization device has a reasonable outlet pressure setting, enabling reliable detection of the air frame in textile machinery and ensuring accurate results; 3. The upper limit of the safe operating pressure of the air tank is much higher than the pressure setting value of the pressure detection device, ensuring the device's safety and reliability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 1-Filter, 2-Check valve, 3-Air tank, 4-Pressure detection device, 5-Pressure booster valve. Detailed Implementation

[0011] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.

[0012] like Figure 1The illustrated gas frame leak detection and pressure stabilization device includes a filter 1 connected to a compressed gas pipeline. The filter 1 is connected to a gas storage tank 3 via a one-way valve 2. The upper limit of the safe operating pressure of the gas storage tank 3 is 1 MPa. The filter 1 is also connected to a booster valve 5, which is connected to the gas storage tank 3. A pressure detection device 4 is installed at the outlet of the gas storage tank 3. The pressure detection device 4 is set to a pressure value of 0.6 MPa and is electrically connected to the booster valve. When compressed air is output from the gas storage tank 3, if the pressure reaches the preset pressure value through the pressure detection device 4, compressed air is directly output. If the pressure does not meet the standard, feedback is sent to the booster valve 5, which is activated to increase the pressure in the gas storage tank 3 to reach the preset pressure. This cycle is repeated to ensure a stable output pressure. The gas storage tank 3 is connected to a gas frame leak detection mechanism via the pressure detection device 4. The aforementioned pressure booster valve is a pneumatic pressure booster valve with an inlet pressure range of 0.1-1 MPa and a maximum outlet pressure of 1 MPa. During operation, the outlet pressure is set to 0.6 MPa, meeting the operational requirements. This invention is safe, reliable, and facilitates leak detection on the air frame for frontline operators, providing accurate and efficient leak detection results.

[0013] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A gas frame leak detection and pressure stabilization device, comprising a filter, wherein the filter is connected to a compressed gas pipeline, characterized in that, The filter is connected to the gas storage tank via a one-way valve. The filter is also connected to a pressure boosting valve, which is connected to the gas storage tank. A pressure detection device is installed at the outlet of the gas storage tank. The pressure detection device is electrically connected to the pressure boosting valve. The gas storage tank is connected to a leak detection mechanism via the pressure detection device.

2. The gas frame leak detection and pressure stabilization device according to claim 1, characterized in that, The pressure detection device is set to a pressure of 0.6 MPa, and the upper limit of the safe operating pressure of the gas storage tank is 1 MPa.

3. The gas frame leak detection and pressure stabilization device according to claim 1, characterized in that, The pressure booster valve is a pneumatic pressure booster valve with an inlet pressure range of 0.1-1 MPa and a maximum outlet pressure of 1 MPa.

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