Model test device and test method for sealing performance of joints of check valves

A model test device and sealing performance technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, can solve the problems of water resource loss, water seepage into the ground, and reduction of reservoir engineering benefits, etc. , to achieve the effect of preventing loss and waste, simple structure and device, and convenient assembly and movement

Active Publication Date: 2013-06-26
SHANDONG UNIV
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sealing performance of the connecting part of the check valve is very important. If the check valve is not well sealed, water will seep into the ground from the check valve, resulting in loss of water resources and reducing the benefits of the reservoir project. Therefore, it is necessary to check it

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Model test device and test method for sealing performance of joints of check valves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] A model test device for the sealing performance of the connection part of a check valve, comprising a water inlet pressurization device 9 and a sealing cylinder 3, the upper part of the sealing cylinder 3 is provided with a water inlet pressurization nozzle 5, and the water inlet pressurization device 9 passes through the sealing cylinder 3 The connecting pipe is connected, the upper part of the sealing cylinder 3 is provided with an air release valve 1, the first pressure gauge 2, the sealing cylinder 3 is provided with a standpipe 6, the upper end of the standpipe 6 is sealed, and the bottom of the sealing cylinder 3 is provided with an upper outer pressure plate 4, a lower layer The outer pressure plate 12, a geomembrane is arranged between the upper outer pressure plate 4 and the lower outer pressure plate 12, the lower end surface of the lowe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Thicknessaaaaaaaaaa
Heightaaaaaaaaaa
Login to view more

Abstract

The invention discloses a model test device for the sealing performance of joints of check valves. The model test device comprises a water feeding pressure device and a sealing barrel. A water feeding pressure pipe orifice is arranged on the upper portion of the sealing barrel, the water feeding pressure device is connected with the sealing barrel by a connecting pipe, an air bleed valve and a first pressure gauge are arranged on the upper portion of the sealing barrel, a vertical pipe is arranged in the sealing barrel, the upper end of the vertical pipe is sealed, an upper-layer external pressure plate and a lower-layer external pressure plate are arranged at the bottom of the sealing barrel, a geotechnical membrane is arranged between the upper-layer external pressure plate and the lower-layer external pressure plate, the lower end surface of the lower-layer external pressure plate is connected with a check valve, a groove is arranged on the upper end surface of the upper-layer external pressure plate, the lower end of the vertical pipe is inserted into the groove, and the vertical pipe is hermetically connected with the upper-layer external pressure plate by the groove. The model test device has the advantages that the model test device is simple in structure and convenient to assemble and shift, a large quantity of inspection work for the sealing performance of the check valves in a construction site can be completed, loss and wastage of water resources are prevented, and benefits brought by reservoir engineering are increased.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a model test device and a test method for the sealing performance of a connection part of a check valve. Background technique [0002] In the reservoir engineering in the plain area, a large area of ​​geomembrane should be laid to prevent the water storage of the reservoir from flowing into the ground. Due to the laying of the geomembrane, a large amount of gas will be generated after the water is stored. , the gas is discharged from the bottom to the ground through the check valve. The sealing performance of the connection part of the check valve is very important. If the check valve is not well sealed, water will seep into the ground from the check valve, resulting in loss of water resources and reducing the benefits of the reservoir project. Therefore, it is necessary to check its airtightness. Since there is no reasonable and effective device and method...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01M3/28
Inventor 王兴菊赵然杭于福春瞿潇王昊荣济平李涛焦璀玲
Owner SHANDONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products