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Double-end seal dynamic running testbed and method

A running test and dynamic technology, applied in the direction of using liquid/vacuum for liquid tightness measurement, by measuring the fluid's acceleration and deceleration rate, etc., can solve the problem of not being able to simulate mechanical seal operating conditions well, poor balance, and work efficiency. Low-level problems, to achieve the effect of effective inspection, strong versatility, and flexible installation

Pending Publication Date: 2019-07-19
XIAN YONGHUA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one end of the motor only drives the mechanical seal for inspection, and the motor with a mechanical seal has poor running balance, which cannot simulate the operating conditions of the mechanical seal in the pump well, and the work efficiency is low.

Method used

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  • Double-end seal dynamic running testbed and method
  • Double-end seal dynamic running testbed and method
  • Double-end seal dynamic running testbed and method

Examples

Experimental program
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Embodiment Construction

[0035] The following is attached figure 1 , figure 2 as well as image 3 The present invention is described in further detail.

[0036] Such as figure 1 and figure 2 As shown, a double-end seal dynamic operation test bench is composed of a first main shaft 1 , a motor 2 , a second main shaft 3 and a base 10 . The motor 2 is provided with a motor shaft 20, which is detachably connected to the motor 2, and the two ends of the motor shaft 20 are respectively connected to the first main shaft 1 and the second main shaft 3. The bottom of the motor 2 is provided with a motor bracket 11, the upper end of the motor bracket 11 is welded with the bottom of the motor 2, and the lower end of the motor bracket 11 is connected with the base 10 by bolts.

[0037] One end of the motor 2 is provided with a first inner flange 14, and one end of the first inner flange 14 is connected with one end of the motor 2 by bolts, and the other end of the first inner flange 14 is provided with a fi...

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PUM

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Abstract

The invention discloses a double-end seal dynamic running testbed, comprising a first main shaft, a motor, a second main shaft and a base. According to the testbed, a structure of a field pump is simulated. The structure is equivalent to a double-support pump. Two sides are symmetrical. A sealed cavity is respectively formed at two sides of the motor. A set of seal is respectively mounted in the sealed cavities at the two sides. The seals are driven by the motor to rotate. Pressures are generated in the sealed cavities. Whether leakage exists in the seals or not is judged according to change of the pressures. Use performance of the seals is effectively detected through utilization of a dynamic test. The invention also discloses an application method of the double-end seal dynamic running testbed. The dynamic tests are carried out on the seals with different shaft diameters. The testbed and the method are characterized by flexible mounting and high universality.

Description

technical field [0001] The invention relates to the field of dynamic operation tests of mechanical seals, in particular to a double-end seal dynamic operation test bench and method. Background technique [0002] With the long-term operation of the mechanical seal, the seal leakage often occurs, so it is very important to check the leakage point. There are two methods to test the sealing performance of mechanical seals: static leak point test and dynamic leak point test. The static leak point test is suitable for checking the leak of the machine pump in a static state, and is suitable for mechanical seals with obvious leak points and large leakage. , but for seals with inconspicuous leaks and difficult to check, the inspection effect of the static leak test is not obvious. The dynamic leak point test is used to check for leaks in the running pump, and the leak checking effect is relatively obvious, but this test wastes sealing fluid and affects the operating conditions of th...

Claims

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Application Information

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IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 申永峰
Owner XIAN YONGHUA GROUP
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