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Nuclear pump impurity testing device and testing method thereof

The technology of a test device and a test method, which is applied in the field of nuclear-grade pump impurity test device, can solve the problems of waste, high price of nuclear-grade pump and high cost, and achieve the effect of reducing cost

Active Publication Date: 2017-10-20
SEC KSB NUCLEAR PUMPS & VALVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the impurity identification test itself is a destructive test, and the price of nuclear-grade pumps is relatively expensive, if the test is carried out directly on the product pump, not only the cost is very high, but also a great waste is caused.

Method used

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  • Nuclear pump impurity testing device and testing method thereof
  • Nuclear pump impurity testing device and testing method thereof

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Embodiment Construction

[0026] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0027] like figure 1 and 2 As shown, this embodiment provides a nuclear-grade pump impurity test device, which includes a test pump body 1, an impeller seal ring 2 and a pump body seal ring 3 that can rotate relatively inside the test pump body 1, and 3 sets of pump body seal rings It is arranged on the outer periphery of the impeller seal ring 2 and forms a test gap with the impeller seal ring 2. The test gap is the same as the gap to be verified in the nuclear pump. The test pump body 1 is also equipped with a stirring device 4 for stirring the impurity particles in the medium. In this embodiment, the structure of the test pump body 1 is the same as that of the nuclear-grade pump, so as to satisfy the environmental conditions similar to the actual operating state to the greatest extent.

[0028]...

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Abstract

The invention discloses a nuclear pump impurity testing device and a testing method thereof, and relates to the technical field of nuclear pump qualification testing. The nuclear pump impurity testing device comprises a test pump internally provided with an impeller sealing ring and a pump body sealing ring, and the impeller sealing ring and the pump body sealing ring can rotate relatively; the periphery of the impeller sealing ring is sleeved with the pump body sealing ring, and a test interval is defined by the pump body sealing ring and the impeller sealing ring; the test interval is the same as a to-be-verified interval in a nuclear pump; and the test pump is further internally provided with a stirring device used for stirring impurity particles in media. The invention further provides the testing method. By arranging the test interval the same as that of the nuclear pump in the test pump, the structure is simplified, the material cost is reduced, damage to finished nuclear pumps is avoided, and waste is reduced.

Description

technical field [0001] The invention relates to the technical field of nuclear-grade pump appraisal test, in particular to a nuclear-grade pump impurity test device and a test method thereof. Background technique [0002] After the design and development of nuclear-grade pumps is completed, a large number of identification tests are usually required to simulate the operating conditions in nuclear power plants to verify the rationality and safety of their design. Nuclear grade pump qualification tests mainly include durability test, performance test, thermal shock test, impurity test, etc. [0003] Due to the dynamic and static relative movement, narrow gaps and mating surfaces that are prone to abrasion and damage inside the pump, the impurity test is to simulate the medium delivered by the pump mixed with insulation materials, crushed concrete, peeling paint and sand under long-term operation or accident conditions. etc., to verify the operability of narrow clearance matin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D15/00
CPCF04D15/0088
Inventor 戴子龙于丽红王志鹏
Owner SEC KSB NUCLEAR PUMPS & VALVES
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