CN-121977815-A - Device and method for testing performance of ultrahigh pressure air valve component unit

CN121977815ACN 121977815 ACN121977815 ACN 121977815ACN-121977815-A

Abstract

The invention discloses a device and a method for testing the performance of an ultra-high pressure air valve component unit, wherein the device comprises an ultra-high pressure compression closed circulation system, the ultra-high pressure air valve component unit comprises an ultra-high pressure air cylinder, a plunger and an ultra-high pressure air valve test component, ultra-high pressure air enters a compression cavity of the air cylinder along an air inlet channel through an air inlet pipeline, the ultra-high pressure air in the compression cavity of the air cavity is discharged to an ultra-high pressure relief device through an air outlet channel, the ultra-high pressure relief device is connected to the air inlet pipeline through a bypass pipeline, a cyclotron is arranged on the air inlet pipeline, the ultra-high pressure air is prepared into radioactive air and is introduced into the ultra-high pressure air cylinder, and a scintillation detector is arranged outside the ultra-high pressure air cylinder and covers the whole ultra-high pressure air cylinder and is used for capturing the flowing range of the radioactive air in the ultra-high pressure air cylinder. The invention has the functions of precisely loading ultrahigh-pressure gas, adjusting the circulation frequency, monitoring the working performance and the like, thereby providing effective experimental means and technical guarantee for realizing localization of key components.

Inventors

YE JUNCHAO
PENG FEI
HOU XIAOBING
HUANG YUANMING
FANG XIN
TAN KUN

Assignees

中石化石油机械股份有限公司
中石化石油机械股份有限公司三机分公司

Dates

Publication Date: 20260505
Application Date: 20260119

Claims (10)

1. The ultra-high pressure gas valve component unit performance test device is characterized by comprising an ultra-high pressure compression closed circulation system, a plunger and an ultra-high pressure gas valve test component, wherein the plunger and the ultra-high pressure gas valve test component are arranged on the ultra-high pressure cylinder, the plunger is sealed through an ultra-high pressure packing component and drives reciprocating compression movement through a driving system, a cylinder compression cavity is formed between the plunger and the ultra-high pressure gas valve test component, an air inlet channel and an air outlet channel are formed in the ultra-high pressure gas valve test component, ultra-high pressure gas enters the cylinder compression cavity along the air inlet channel through the air inlet channel, ultra-high pressure gas in the air cavity compression cavity is discharged to an ultra-high pressure relief device through the air outlet channel and is connected to the air inlet channel through the air inlet channel, a cyclotron is arranged on the air inlet channel at the downstream of a bypass pipeline, the ultra-high pressure gas is prepared into radioactive gas and is introduced into the ultra-high pressure cylinder, and a scintillation detector is arranged outside the ultra-high pressure cylinder and covers the whole ultra-high pressure cylinder and is used for capturing the flowing range of the radioactive gas in the ultra-high pressure cylinder.
2. The ultra-high pressure air valve component unit performance test device according to claim 1, wherein the compressed set-point ultra-high pressure air is discharged to an ultra-high pressure relief device along an exhaust pipeline through an exhaust channel, the exhaust pipeline is provided with an ultra-high pressure pulse valve with adjustable pressure, and the bypass pipeline is provided with a one-way valve.
3. The ultra-high pressure air valve unit performance test apparatus according to claim 1, wherein the initial ultra-high pressure air is introduced into the ultra-high pressure cylinder along the air inlet pipe by the ultra-high pressure air pump.
4. The ultra-high pressure air valve component unit performance test device according to claim 1, further comprising a pressure indicating block which is an elastic block and is arranged on the end part of the plunger, which is positioned in the compression cavity of the air cylinder, wherein the pressure indicating block is used for adjusting the compression size along with the pressure of the air in the compression cavity of the air cylinder, and then the size change of the pressure indicating block is obtained through a scintillation detector, so that the pressure change in the compression cavity of the air cylinder is detected.
5. The ultra-high pressure air valve unit performance test apparatus according to claim 4, further comprising a photoelectric sensor disposed above the ultra-high pressure packing unit and facing the plunger, wherein the plunger is attached with a reflective strip, and the photoelectric sensor is used for detecting how many strokes the plunger works.
6. The ultra-high pressure gas valve unit performance test apparatus according to claim 5, further comprising a data acquisition and analysis module that acquires and processes data from the scintillation detector and the photosensor and then transmits the processed data to a control system for collection and display of the data.
7. The ultra-high pressure air valve unit performance test apparatus according to claim 1, further comprising an oil lubrication system for oil lubrication of the ultra-high pressure packing unit and the plunger.
8. The device for testing the performance of the ultra-high pressure air valve component unit according to claim 1, wherein the ultra-high pressure release device comprises a first ultra-high pressure buffer tank and a second ultra-high pressure buffer tank which are sequentially connected through an ultra-high pressure connecting pipeline, a first stop valve is arranged on the ultra-high pressure connecting pipeline in front of the first ultra-high pressure buffer tank, a second stop valve is arranged on the ultra-high pressure connecting pipeline between the first ultra-high pressure buffer tank and the second ultra-high pressure buffer tank, and ultra-high pressure gauges are arranged on the first ultra-high pressure buffer tank and the second ultra-high pressure buffer tank.
9. The ultra-high pressure air valve unit performance test apparatus according to claim 1, further comprising a nuclear radiation protection wall formed as a sealed space to seal the ultra-high pressure air valve unit performance test apparatus therein.
10. The ultra-high pressure air valve component performance test method by using the ultra-high pressure air valve component unit performance test device is characterized by comprising the following steps: step one, outputting initial ultrahigh-pressure gas through an ultrahigh-pressure air pump, generating radioactive ultrahigh-pressure gas through a cyclotron, and then entering a cylinder compression cavity through an air inlet channel of an ultrahigh-pressure air valve test part; Driving a plunger to reciprocate by a driving system to compress, and flowing out the compressed ultrahigh-pressure gas from an exhaust channel of an ultrahigh-pressure gas valve test part to an ultrahigh-pressure pulse valve; Step three, when the pressure of the ultrahigh pressure pulse valve exceeds the pressure of the ultrahigh pressure gas with a set value, reducing the pressure to the pressure of the initial ultrahigh pressure gas through an ultrahigh pressure relief device, and finally connecting the pressure to an air inlet pipeline through a bypass pipeline to complete closed circulation; In the process, radioactive ultrahigh-pressure gas flows and distributes in the ultrahigh-pressure cylinder, the ultrahigh-pressure air valve test part and each pipeline, and is captured by the scintillation detector, so that the opening and closing and sealing performance of a valve plate of the ultrahigh-pressure air valve test part are displayed, and the volume change of a pressure indicating block arranged on a plunger is captured by the scintillation detector, so that the pressure change in a compression cavity of the cylinder is displayed.

Description

Device and method for testing performance of ultrahigh pressure air valve component unit Technical Field The invention relates to the technical field of ultrahigh-pressure reciprocating compressor tests. More particularly, the invention relates to a device and a method for testing the performance of an ultra-high pressure air valve component unit. Background For the ultra-high pressure reciprocating compressor, the ultra-high pressure air valve belongs to a vulnerable part which needs to be replaced periodically, and whether the working process is efficient and reliable or not determines the compression efficiency and the maintenance period of the ultra-high pressure compressor to a great extent. Therefore, in the process of carrying out domestic design and manufacture on the ultrahigh pressure air valve component, whether the domestic manufacturing performance can meet the requirements or not is determined in order to determine whether the design, processing and assembly processes of the ultrahigh pressure air valve component are reasonable. Besides the simulation analysis of the working process (such as the simulation of the working process of the ultra-high pressure gas valve, the fatigue life analysis of the gas valve component, and the like), the unit performance test is also required to be carried out on the ultra-high pressure gas valve to check whether the product performance meets the field use requirement of the ultra-high pressure compressor. However, the existing test device in China at present cannot simulate the working environment of the ultrahigh pressure air valve component of the compressor in actual operation under the laboratory environment, and meanwhile, because the ultrahigh pressure air valve is generally installed inside the ultrahigh pressure air cylinder and is completely wrapped by the ultrahigh pressure air cylinder, the working process of the ultrahigh pressure air valve is difficult to detect in a laser, eddy current or strain detection mode and the like, for example, the influence of gas force and displacement change on all parts inside the air valve, the influence of trace polyethylene solid generated by polymerization reaction of ethylene gas in the ultrahigh pressure state on the working process of an air valve plate and the like are difficult. In addition, due to the lack of a special test platform, the existing test method is often dependent on complete machine test, so that the cost is high, the period is long, and isolation test and performance evaluation of a single component are difficult to perform, so that the design, optimization and fault diagnosis of the air valve component are lack of effective test data support. Therefore, the development of the special test device which can simulate the actual working condition of the ultra-high pressure compressor and can independently test the unit performance of the air valve component has important significance for improving the design level of the domestic ultra-high pressure air valve, verifying the reliability and shortening the research and development period. The device has the functions of precisely loading ultrahigh-pressure gas, adjusting the circulation frequency, monitoring the working performance and the like, thereby providing effective experimental means and technical guarantee for realizing localization of key components. Disclosure of Invention The invention aims to provide a device and a method for testing the performance of an ultra-high pressure gas valve component unit, which simulate the conditions of sealing, stress and the like of an ultra-high pressure compressor gas valve component in the working process, detect leakage and the like in the working process, provide result verification references for dynamic simulation, and have the functions of precisely loading ultra-high pressure gas, adjusting the circulation frequency, monitoring the working performance and the like, thereby providing effective experimental means and technical guarantee for realizing localization of key components. In order to solve the technical problems, the invention provides an ultra-high pressure air valve component unit performance test device which comprises an ultra-high pressure air cylinder, a plunger and an ultra-high pressure air valve test component, wherein the plunger and the ultra-high pressure air valve test component are arranged on the ultra-high pressure air cylinder, the plunger is sealed through an ultra-high pressure packing component and drives reciprocating compression movement through a driving system, an air cylinder compression cavity is formed between the plunger and the ultra-high pressure air valve test component, an air inlet channel and an air outlet channel are formed in the ultra-high pressure air valve test component, ultra-high pressure air enters the air cylinder compression cavity along the air inlet channel through the air inlet channel, ultra-high pressure air in the air cavity compressio