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Novel fluid static pressure type main pump mechanical seal test device

A hydrostatic and mechanical seal technology, applied in mechanical equipment, using liquid/vacuum degree for liquid tightness measurement, pump control, etc., to achieve the effect of reducing axial load, prolonging life, and wide application range

Pending Publication Date: 2021-03-02
SICHUAN SUNNY SEAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the mechanical seal is installed in the main pump, it is necessary to conduct a test run on the mechanical seal to verify whether the sealing performance of the main pump is qualified, so as to prevent the abnormal situation when the mechanical seal is installed in the main pump for official operation, resulting in unplanned shutdown

Method used

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  • Novel fluid static pressure type main pump mechanical seal test device
  • Novel fluid static pressure type main pump mechanical seal test device
  • Novel fluid static pressure type main pump mechanical seal test device

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0026] Such as figure 2 As shown, a new hydrostatic main pump mechanical seal test device includes a base 2, a motor 4, a main shaft 5 and a test sleeve 7, and the base 2 is fixed with a lower cavity 10 and an upper cavity in sequence from bottom to top. 11 and a top seat 12, wherein the upper cavity 11 and the lower cavity 10 are locked and fixed on the base 2 by a plurality of long-stem bolts, and the top seat 12 is locked and fixed on the upper cavity 11 by a plurality of long-stem bolts, The lower end of the main shaft 5 is rotatably installed on the base 2, and the upper end is rotatably installed on the top seat 12. The motor 4 is connected to the main shaft 5 through transmission. , No. 2 seal 15 and No. 3 seal 16 are installed on the test shaft sleeve 7 from bottom ...

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Abstract

The invention relates to the technical field of mechanical seal test devices, in particular to a novel fluid static pressure type main pump mechanical seal test device, and the device comprises a base, a motor, a main shaft and a test shaft sleeve, a lower cavity, an upper cavity and a top seat are sequentially fixed on the base from bottom to top, the lower end of the main shaft is rotatably mounted on the base, and the upper end of the main shaft is rotatably mounted on the top seat. The motor is in transmission connection with the main shaft, the main shaft is sleeved and fixedly provided with a test shaft sleeve, and the test shaft sleeve is sequentially provided with a second seal and a third seal from bottom to top. The actual working condition of a nuclear main pump can be simulated, and the mechanical sealing performance of the main pump to be installed can be accurately tested; a transmission system is arranged at the lower part, the motor is arranged at the side, the safety is higher, and the assembly, disassembly, operation and maintenance are faster and more convenient; a balance seal is arranged to prolong the service life of the bearing, the test stand maintenance period and the service life; a complete set of tests of No.1, No.2 and No.3 seals can be realized, and independent tests of No.2 and No.3 seals can also be realized, so that the application range is wider.

Description

technical field [0001] The invention relates to the technical field of mechanical seal test devices, in particular to a novel hydrostatic main pump mechanical seal test device. Background technique [0002] In nuclear power plant equipment, the sealing performance of the main pump is particularly important. The mechanical seal of the main pump is an important part of the main pump, which is directly related to the normal operation of the main pump. Before the mechanical seal is installed in the main pump, it is necessary to conduct a test run on the mechanical seal to verify whether the sealing performance of the main pump is qualified, so as to prevent abnormal conditions when the mechanical seal is installed in the main pump for official operation, resulting in unplanned shutdown. In addition, during trial operation, it is required to simulate the actual working conditions in the main pump to ensure that the test results are accurate and the performance meets the operatin...

Claims

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Application Information

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IPC IPC(8): G01M3/02F04D15/00
CPCF04D15/0088G01M3/02
Inventor 张君凯奉明忠刘伟陈侃黄美
Owner SICHUAN SUNNY SEAL