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Auto-controlled gas liquid two purpose leakage detector

A leak detector, a dual-purpose technology, applied in the direction of measuring the increase and decrease rate of the fluid, using the liquid/vacuum degree to measure the liquid tightness, etc., can solve the problems of not being able to detect liquid, internal valve damage, affecting accuracy, etc.

Inactive Publication Date: 2007-04-18
宁波赛盟科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of industrial automation, the use of pneumatic and hydraulic products is also expanding, and the demand for products with gas and liquid sealing requirements is increasing, such as gas appliances, refrigerators, air conditioners, electronic components, cylinders, valves, Engines, liquid pumps, etc., accurately, efficiently and quantitatively test the gas and liquid sealing performance of products, which is an essential means for product manufacturers to ensure product quality, reduce production costs and even establish corporate image; the application number is CN200410072880 and a An air-tight leak detector that automatically calculates pressurization, balance, control and exhaust, which includes a pressure source, a pressure adjustment part, a differential pressure detection part, a standard joint, a probe and a control part, the pressure adjustment part has a pressure sensor, and the differential pressure The pressure detection section includes a balance valve, a ball valve, and a differential pressure sensor. The pressure sensor and the differential pressure sensor are connected to the control section through a circuit; the application number is 93247830, which also discloses a blast furnace cooling water leak detector. The leak detector can detect leaks manually or automatically, but it can only detect one state. For example, the airtight leak detector cannot detect the leakage of liquid, and vice versa. In addition, due to the long-term detection of the leak detector, there will be water vapor remaining inside the instrument. Residues such as dust and dust, especially the residues in the differential pressure sensor affect the accuracy of detection, and water vapor also causes damage to internal valves. With the use of multi-field technology for gas and liquid leak detection equipment, the Equipment and configuration requirements for leak detection are getting higher and higher

Method used

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  • Auto-controlled gas liquid two purpose leakage detector
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  • Auto-controlled gas liquid two purpose leakage detector

Examples

Experimental program
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Effect test

Embodiment 1

[0027] An automatic control gas-liquid dual-purpose leak detector, as shown in Figure 1 and Figure 2, includes a gas source 1, a pressure adjustment part 2, a differential pressure detection part 3, and a pressure adjustment part 2 and a differential pressure detector connected in series in sequence. The pressure detection part 3 is connected to the control part 4, and the differential pressure detection part 3 includes an SM5852-001-D-3-L digital differential pressure sensor 31, a first filter 35, a second filter 36, and a first two-way valve 37 , the second two-way valve 38, the pressure protection valve 32 and the probe 33 and the standard part 34 arranged in parallel, the pressure adjustment part 2 is provided with a SAM-APU-01 type electric control valve 21 and a three-way valve 22, and the control part 4 is provided with The output terminal (not shown) that can be connected with the remote control system 5, as shown in Figure 3, the probe 33 includes a gas detection pipel...

Embodiment 2

[0029] Other structures are different from Embodiment 1, as shown in FIG. 4 , the pressure sensor 340 provided between the air chamber 336 and the liquid chamber 337 is provided with two piston assemblies, and an oil chamber is arranged between the two piston assemblies. 341, the oil chamber 341 is provided with an oil inlet 342 and an oil outlet 343.

Embodiment 3

[0031] An automatic control gas-liquid dual-purpose leak detector, as shown in Figure 1 and Figure 2, includes a gas source 1, a pressure adjustment part 2, a differential pressure detection part 3, and a pressure adjustment part 2 and a differential pressure detector connected in series in sequence. The pressure detection part 3 is connected to the control part 4, and the differential pressure detection part 3 includes an SM5852-001-D-3-L digital differential pressure sensor 31, a first filter 35, a second filter 36, and a first two-way valve 37 , the second two-way valve 38, the pressure protection valve 32 and the probe 33 and the standard part 34 arranged in parallel, the pressure adjustment part 2 is provided with a SAM-APU-01 type electric control valve 21 and a three-way valve 22, and the control part 4 is provided with The output terminal (not shown) that can be connected with the remote control system 5, as shown in Figure 5, the gas-liquid dual-purpose detection devic...

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PUM

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Abstract

The invention relates to discloses self control gas liquid dual purpose leak-detector. It includes air source, pressure adjusting unit, differential pressure test unit, control unit connected with the pressure adjusting unit set adjusting valve and differential pressure test unit includes differential pressure transducer, filter, pressure protective valve, prove, and standard parts. The probe is gas liquid dual purpose detecting device. The leak detector of the invention can be used to detect gas or liquid leakage to realize one machine has dual purpose.

Description

technical field [0001] The invention relates to an automatically controlled leak detector, in particular to an automatically controlled gas-liquid dual-purpose leak detector. Background technique [0002] With the rapid development of industrial automation, the use of pneumatic and hydraulic products is also expanding, and the demand for products with gas and liquid sealing requirements is increasing, such as gas appliances, refrigerators, air conditioners, electronic components, cylinders, valves, Engines, liquid pumps, etc., accurately, efficiently and quantitatively test the gas and liquid sealing performance of products, which is an essential means for product manufacturers to ensure product quality, reduce production costs and even establish corporate image; the application number is CN200410072880 and a An air-tight leak detector that automatically calculates pressurization, balance, control and exhaust, which includes a pressure source, a pressure adjustment part, a d...

Claims

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Application Information

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IPC IPC(8): G01M3/26
Inventor 李广赖道京
Owner 宁波赛盟科技发展有限公司
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