Test loop and test method for testing mechanical seal for nuclear main pump

A technology of mechanical seal and test circuit, which is applied in the field of testing, can solve problems such as single and offline, and achieve the effect of improving accuracy and preventing potential safety hazards

Pending Publication Date: 2021-12-10
SEC KSB NUCLEAR PUMPS & VALVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since many mechanical seal manufacturers can only conduct a single, offline test

Method used

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  • Test loop and test method for testing mechanical seal for nuclear main pump

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Embodiment Construction

[0028] The following will be combined with the appendix in the embodiment of the present invention figure 1 , the technical solutions, structural features, achieved goals and effects in the embodiments of the present invention will be described in detail.

[0029] It should be noted that the accompanying drawings are in a very simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention, and are not intended to limit the conditions for the implementation of the present invention, so they are not technically The substantive meaning, any modification of the structure, the change of the proportional relationship or the adjustment of the size, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the technical content disclosed in the present invention. within the scope of coverage.

[0030] It should be n...

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Abstract

The invention relates to a test loop for testing a mechanical seal for a nuclear main pump. The test loop comprises a main loop system and a pressure control system; the main loop system comprises a water tank and a mechanical sealing tool; an outlet of the water tank is connected with an inlet of the mechanical sealing tool through a main pipeline; a plunger pump is arranged on the main pipeline; a backflow outlet of the mechanical sealing tool is connected with an inlet of the water tank, and the water tank and the mechanical sealing tool form a closed loop; the pressure control system comprises an expansion tank and a pressure source; wherein the expansion tank provides static pressure for a closed loop formed by the water tank and the mechanical sealing tool, and the first medium in the water tank flows to the mechanical sealing tool along the main pipeline under the power provided by the plunger pump and flows back to the water tank through the mechanical sealing tool so as to perform a sealing test on the mechanical sealing tool. The test loop for testing the mechanical seal for the nuclear main pump has the advantages of being clean in medium, capable of conducting a thermal shock test, high in safety and the like.

Description

technical field [0001] The invention belongs to the field of testing, and more particularly, relates to a test circuit and a test method for testing a mechanical seal for a nuclear main pump. Background technique [0002] The mechanical seal for the nuclear main pump is used to control the leakage of the reactor coolant along the pump shaft. It is a key component of the main pump and is closely related to the safe and reliable operation of the main pump. Since the mechanism of mechanical seal involves many disciplines such as tribology, material science, fluid mechanics, solid mechanics, heat transfer, lubrication theory, etc., a complete design theory has not yet been formed, and many data are obtained by experiments. However, because many mechanical seal manufacturers can only conduct single, non-online tests. Therefore, it is very important to have a fully functional and complete test loop. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26F04B51/00
CPCG01M3/26F04B51/00
Inventor 潘永春马林金乐崔怀明张林杨承刚
Owner SEC KSB NUCLEAR PUMPS & VALVES
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