Pipe temperature change test unit

A technology of temperature change and test equipment, which is applied in the direction of applying repeated force/pulsation force to test the strength of materials, etc., can solve the problems of inability to ensure effectiveness and achieve the effects of convenient operation, improved inspection effect, and improved pass rate

Inactive Publication Date: 2011-03-30
无锡金羊管件有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing stainless steel clamping pipe fittings, stainless steel clamp joints and thin-walled stainless steel pipes for connection, after the production and processing are completed, a certain temperature testing device is required to ensure that the pipe fittings have good temperature performance and high-level product quality. If the existing crude detection methods are used, the effectiveness cannot be ensured

Method used

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Embodiment Construction

[0011] Such as figure 1 As shown, the pipe temperature change test device of the present invention includes a solenoid valve I1, a solenoid valve III3, a water pump 6, a pressure valve 7, and a thermal sensor 8. The output end and the input end of the water heater 5 are respectively connected to the solenoid valve I1 And electromagnetic valve III3, wherein the other end of electromagnetic valve I1 is provided with water pump 6, and this water pump 6 is connected with electromagnetic valve II2 and pressure valve 7 respectively, and electromagnetic valve II2 is connected with cold water inlet end; The output end of described pressure valve 7 is provided with heat Inductor 8, one side of the thermal sensor 8 is connected to the pipe to be detected 10, pipe joints 9 are connected between each section of pipe 10, a fixed bracket floating support 11 is provided on the outside of the pipe 10, and the solenoid valve III3 is externally provided with a Solenoid valve IV4 for cold water ...

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Abstract

A pipe temperature change test unit comprises a solenoid valve I, a solenoid valve III, a water pump, a pressure valve and a thermal sensor. An output end and an input end of a water heater are respectively connected with the solenoid valve I and the solenoid valve III, wherein the other end of the solenoid valve I is provided with the water pump; the water pump is respectively connected with a solenoid valve II and the pressure valve; an output end of the pressure valve is provided with the thermal sensor; and a solenoid valve IV connected with a cold water outlet is arranged outside the solenoid valve III. The invention has the advantages that: the pipe temperature change test unit is convenient to operate, and contributes to improvement on product pass percent and test effect; in the test, cyclic change is carried out for 5,000 times under the pressure of (0.1+ / -0.01)MPa and at the temperature of (20+ / -5) DEG C and (93+ / -5) DEG C, the time for each cycle is (30+ / -2)min, and both cold water and hot water are kept for 15 minutes. When the outer diameter of a carbon steel pipe is more than 54mm, cyclic change is carried out for 2,500 times and the time for each cycle is (60+ / -2) minutes so that the connecting part avoids leakage.

Description

technical field [0001] The invention relates to a performance test device for pipe fittings, in particular to a pipe temperature change test device. Background technique [0002] Pipe fittings can be divided into four categories: socket fittings, threaded fittings, flanged fittings and welded fittings. The elbow is used for the turning position of the pipe, and the flange is used for the parts that connect the pipe to the pipe. Existing stainless steel clamping pipe fittings, stainless steel clamp joints and thin-walled stainless steel pipes for connection, after the production and processing are completed, a certain temperature testing device is required to ensure that the pipe fittings have good temperature performance and high-level product quality. If the existing crude detection means are used, the effectiveness cannot be guaranteed. Contents of the invention [0003] In view of the above defects, the object of the present invention is to provide a pipe temperature c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/36
Inventor 王锡铭
Owner 无锡金羊管件有限公司
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