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A cleaning method for water ring vacuum pump fouling

A water ring vacuum pump and vacuum pump technology, which is applied to non-variable volume pumps, components of pumping devices for elastic fluids, pumps, etc., can solve the problem that the vacuum degree of the calcium carbonate filtration process cannot meet the requirements and affect the use of equipment. life, equipment damage, etc.

Active Publication Date: 2015-12-09
WENGFU (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the operation of the first-phase phosphogypsum ammonium sulfate plant, due to the serious fouling of the water ring vacuum pump, the vacuum degree of the calcium carbonate filtration process did not meet the requirements; the traditional method of descaling is soaking with acid, but , this method is easy to corrode the equipment when improperly operated, causing unnecessary equipment damage and affecting the service life of the equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] A cleaning method for fouling of a water ring vacuum pump, comprising the following steps:

[0009] (1) Disassemble the pump cover of the water ring vacuum pump in a calcium carbonate filtration process, and then disassemble the cleaning holes of the water ring vacuum pump, such as the cleaning holes on both sides of the rotating shaft, the newly added cleaning holes for the inlet and outlet, and the rubber Ball hole, observe the fouling inside the pump, use 8% hydrochloric acid solution to soak the scaling part of the water ring vacuum pump, soak the scaling part with cotton yarn soaked in hydrochloric acid, place the water ring vacuum pump for 20 minutes, and then use 10% The hydrochloric acid solution infiltrates the scaling part of the water ring vacuum pump, and bubbles are generated in the scaling part under the infiltration of the hydrochloric acid solution. After placing the ring vacuum pump for 70 minutes, use 1MPa compressed air to purge the scaling of the wate...

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PUM

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Abstract

The invention discloses a method for cleaning deposits of a water-ring vacuum pump. The method includes operation steps of disassembling the water-ring vacuum pump, soaking deposit positions of the water-ring vacuum pump by 8-10% hydrochloric acid solution, allowing the water-ring vacuum pump to stand for 20-30 minutes, then soaking the deposit positions of the water-ring vacuum pump by 10-12% hydrochloric acid solution, allowing the water-ring vacuum pump to stand for 60-90 minutes, purging the deposits of the water-ring vacuum pump by compressed air under the pressure of 0.8-1MPa for 10-15 minutes and allowing the water-ring vacuum pump to stand for 20-30 minutes; starting a high-pressure cleaning machine, regulating the pressure until the pressure is 8-10MPa, aligning a gun head of the cleaning machine with the deposit positions, stepping a pressure transmitter and cleaning the deposits for 5-10 minutes. According to the technical scheme, the method has the advantages that the deposits of the water-ring vacuum pump can be effectively removed, a pump body is prevented from being damaged owing to the fact that the method is specifically used for cleaning the deposit positions, and the method can be widely applied to removing deposits of water-ring vacuum pumps.

Description

technical field [0001] The invention relates to a scaling cleaning method of a calcium carbonate filter water ring vacuum pump. Background technique [0002] During the operation of the first-phase phosphogypsum ammonium sulfate plant, due to the serious fouling of the water ring vacuum pump, the vacuum degree of the calcium carbonate filtration process did not meet the requirements; the traditional method of descaling is soaking with acid, but , Improper operation of this method is easy to corrode the equipment, causing unnecessary equipment damage and affecting the service life of the equipment. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention aims to provide a scaling cleaning method for a water ring vacuum pump, which ensures that the pump body will not be damaged during the scaling removal process. [0004] The technical scheme adopted in the present invention: a cleaning method for fouling of a water ring vacuum p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/70
Inventor 刘朴茂李宇琴龙刚潘志云
Owner WENGFU (GRP) CO LTD
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