Unlock instant, AI-driven research and patent intelligence for your innovation.

Testing system and detection method for detecting creepage and collapse performance of tubular product

A test system and detection method technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of heat transfer tube creep and collapse, pressure loss in the tube, etc., and achieve low detection difficulty, simple production, and reliable performance Effect

Pending Publication Date: 2018-01-09
SUZHOU NUCLEAR POWER RES INST +1
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under accident conditions, the pressure inside the tube is lost, and the heat transfer tube is very likely to creep and collapse in an environment of 920°C and 4MPa.

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
  • Testing system and detection method for detecting creepage and collapse performance of tubular product
  • Testing system and detection method for detecting creepage and collapse performance of tubular product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a test system for detecting the creep collapse performance of pipe 100, the test system includes a test device, a pressure device and a detection device connected with the test device, the test device includes a first adapter 1 and a second An adapter 2, a pressure-bearing pipe 3 connected to the first adapter 1 and the second adapter 2 at both ends, the pipe 100 is detachably connected between the first adapter 1 and the second adapter 2, and the outer wall of the pipe 100 , the inner wall of the pressure tube 3, the inner end of the first adapter 1 and the inner end of the second adapter 2 are surrounded by a closed pressurized chamber 4; the pressurizing device communicates with the pressurized chamber 4 for adding Hydraulic pressure is provided in the pressure chamber 4; the detection device includes a pressure sensor for measuring the pressure on the outer wall of the pipe 100 and a signal acquisition and processing unit electrically conn...

Embodiment 2

[0033] This example provides a detection method for detecting the creep and collapse performance of pipes. The device in Embodiment 1 is used to detect the 150MM pipe. The specific steps are as follows:

[0034] ①. Connect the two ends of the pipe to be tested and the two ends of the pressure pipe to the first adapter and the second adapter respectively to complete the assembly of the test device;

[0035] ②. Connect the pressurizing device to the pressurizing chamber of the test device, turn on the pressurizing pump to continuously feed pressurized liquid into the pressurizing chamber, and obtain real-time pressure data from the relevant software of the computer, and draw a curve, such as figure 2 shown;

[0036] ③, from figure 2 From the data shown, it can be seen that the test is divided into two parts: leak detection and constant speed pressurization. From the leak detection curve, it can be seen that the test system is well sealed. From the pressurization curve, it can...

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

No PUM Login to View More

Abstract

The invention relates to a testing system for detecting creepage and collapse performance of a tubular product. The testing system comprises a testing device, a pressurizing device and a detection device connected with a testing unit. The testing system for detecting the creepage and collapse performance of the tubular product, provided by the invention, can be used for checking test samples withdifferent sizes; a first adapter, a second adapter and a pressure bearing pipe of the testing system are simple to manufacture and low in cost; a strain gauge and a pressure transmitter in a detectionunit for the creepage and collapse performance of the tubular product adopt products which are relatively common in the market, so that the testing system provided by the invention has the advantagesof simplicity in manufacturing, reliable performance, low detection cost and convenience for operation. The invention further relates to a detection method for detecting the creepage and collapse performance of the tubular product; a detection process is automatic and the detection difficulty is very small; the information of the creepage and collapse performance of the detected tubular product is accurate.

Description

technical field [0001] The invention relates to a test system and a test method for detecting the creep and collapse performance of pipes. Background technique [0002] Nuclear fuel cladding tubes are widely used as cladding materials for power reactors. However, cladding materials work in a high-temperature and high-pressure environment, and the pressure and thermal stress of the external coolant are one of the main aspects. For normal operating conditions, the design criteria require that in During the entire design life, the fuel cladding should not undergo creep collapse to prevent possible rupture of the cladding due to creep collapse. At the initial stage of reactor operation, under the action of coolant pressure and operating temperature, the fuel cladding must be self-supporting, because at this time the internal pressure of the fuel yard is the lowest and the pressure difference on the cladding is the largest. For faulty operation, although the mechanical bearing c...

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): G01N3/12
Inventor 张晏玮柏广海王荣山徐成刘二伟侯林涛郭立江
Owner SUZHOU NUCLEAR POWER RES INST