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Desulphurization circulating pump and wet desulfurization system

A circulating pump and pump shaft technology, applied in the field of desulfurization, can solve the problems of easy damage, high replacement cost, short service life, etc., and achieve the effects of uniform force, extended service life and stress dispersion

Pending Publication Date: 2018-09-07
成渝钒钛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Desulfurization technology is widely used in chemical production to purify coal-burning exhaust gas, absorb sulfur dioxide, and reduce air pollution. The impeller and pump shaft of the existing desulfurization circulating pump have a short service life and are easily damaged, which greatly affects the transmission efficiency and replacement cost. High, affecting process production

Method used

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  • Desulphurization circulating pump and wet desulfurization system
  • Desulphurization circulating pump and wet desulfurization system
  • Desulphurization circulating pump and wet desulfurization system

Examples

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Effect test

no. 1 example

[0025] See attached figure 1 The first embodiment of the present invention provides a desulfurization circulating pump 10a, which includes a pump body 100, a pump cover 200, a pump shaft 300, a bearing 400, a joint seat 500 and an impeller 600.

[0026] The pump body 100 is provided with a delivery cavity 101, the impeller 600 is arranged in the delivery cavity 101, and one side of the pump body 100 is provided with a liquid inlet 110 facing the impeller 600, and the end of the pump body 100 opposite to the liquid inlet 110 passes through the pump The cover 200 is closed. The pump body 100 is provided with a liquid outlet 120 on the side of the impeller 600. The liquid inlet 110 and the liquid outlet 120 are both connected to the delivery chamber 101. The impeller 600 is fixedly connected to one end of the pump shaft 300. The other end of 300 is rotatably connected to the joint base 500 through a bearing 400. The surface of the pump shaft 300 is provided with an annular cooling ch...

no. 2 example

[0055] A desulfurization circulating pump 10b is improved in this embodiment. For its main structure, refer to the first embodiment. The difference from the first embodiment is that in this embodiment, there is also provided between the joint base 500 and the pump shaft 300 The cooling water cooling cavity is connected with a cooling water inlet pipe 530 and a cooling water outlet pipe 540. The pump shaft 300 can be further cooled by the cooling water cooling cavity, so that the dual cooling can better protect the pump shaft 300 and prolong the service life of the machine.

no. 3 example

[0057] A desulfurization circulating pump 10c improved in this embodiment. See the second embodiment for its main structure. The difference from the first embodiment is that in this embodiment, the coolant inlet 320 is provided with a filter 340, which passes through the filter. 340 may prevent impurities from entering the annular cooling cavity 310 of the pump shaft 300, causing blockage. Further, a filter screen 150 is also provided at the inlet end of the liquid inlet channel 102, and the filter screen 150 can intercept relatively large impurities and protect the internal structure of the pump body 100.

[0058] In summary, the balance through holes 610 provided on the impeller 600 can balance the pressure on both sides of the impeller 600, so that the force of the impeller 600 is more uniform, the stress is more dispersed, and the service life of the impeller 600 is prolonged. The surface of the 300 is provided with an annular cooling cavity 310, so that the pump shaft 300 ca...

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PUM

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Abstract

The invention discloses a desulphurization circulating pump comprising a pump body, a pump cover, a pump shaft, a bearing, a coupling base and an impeller. The pump body is provided with a conveying cavity, and the impeller is arranged in the conveying cavity; one side of the pump body is provided with a liquid inlet which directly faces the impeller, and the end, opposite to the liquid inlet, ofthe pump body is closed by the pump cover; the part, corresponding to the side of the impeller, of the pump body is provided with a liquid outlet, and both the liquid inlet and the liquid outlet communicate with the conveying cavity; the impeller is fixedly connected to one end of the pump shaft, and the other end of the pump shaft is rotatably connected to the coupling base through the bearing; the surface of the pump shaft is provided with an annular cooling cavity extending from one end of the pump shaft to the other end axially, and the part, located in the conveying cavity, of the pump shaft is provided with the cooling liquid inlet and the cooling liquid outlet which communicate with the annular cooling cavity; and the impeller is further provided with a plurality of balance throughholes. According to the desulphurization circulating pump, the pump shaft can be cooled comprehensively, so that the pump performance is not affected by heating in the long-time running process of thepump shaft; and thus the overall service life of the desulphurization circulating pump is prolonged.

Description

Technical field [0001] The present invention relates to the field of desulfurization technology, in particular to a desulfurization circulating pump and a wet desulfurization system. Background technique [0002] As purifying coal-burning tail gas, absorbing sulfur dioxide, and reducing air pollution, desulfurization technology is widely used in chemical production. The existing desulfurization circulating pump has a short service life of impeller and pump shaft and is easily damaged, which greatly affects transmission efficiency and replacement costs. Higher, affecting process production. Summary of the invention [0003] The purpose of the present invention is to provide a desulfurization circulating pump to improve the balance force of the impeller and the cooling effect of the pump shaft, so as to achieve the effect of prolonging the service life of the desulfurization circulating pump. [0004] Another object of the present invention is to provide a wet desulfurization system,...

Claims

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Application Information

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IPC IPC(8): F04D7/02F04D29/22F04D29/42F04D29/58F04D29/66F04D29/043F04D29/10C09D163/00C09D7/61
CPCF04D7/02C09D7/61C09D163/00F04D29/043F04D29/106F04D29/2222F04D29/2227F04D29/426F04D29/588F04D29/669
Inventor 何森林黎平肖智
Owner 成渝钒钛科技有限公司
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