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High-pressure double suction pump

A double-suction pump, high-pressure technology, applied to pumps, pump components, non-variable pumps, etc., can solve the problems of long hydraulic strength test, easy failure of mechanical seal shaft holder, poor sealing effect of mouth ring, etc., to achieve Eliminate pop-up failure, improve fixation and mechanical seal performance, and increase flow resistance

Active Publication Date: 2012-05-09
西安航天泵业有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] In order to solve the technical problems of low efficiency of the suction chamber of the existing double-suction pump, long hydraulic strength test time, easy failure of the mechanical seal shaft holder, and poor sealing effect of the mouth ring, the invention provides a high-pressure double-suction pump

Method used

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  • High-pressure double suction pump

Examples

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Embodiment Construction

[0041] like figure 1 , image 3 , Figure 4 As shown, a high-pressure double-suction pump includes a suction chamber 1, a pump casing, an impeller, a shaft, a cartridge mechanical seal device 34 arranged between the pump casing and the shaft, an impeller mouth ring sealing device, and a mechanical seal flushing device , the suction chamber includes a suction inlet, a splitter section 2 and a spiral section 3, and the splitter section 2 includes a left runner 6, a right runner 5, and a volute wall 4 between the left runner 6 and the right runner 5, and the volute wall There is a water diversion tongue 7 extending toward the suction port; the left side of the water diversion tongue 7 and the right side of the left flow channel are connected together to form a smooth transition arc; the right side of the water diversion tongue 7 and the right flow The left sides of the road are connected together to form a smooth transitional arc surface. The water-distributing tongue 7 is a ...

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Abstract

The invention relates to a high-pressure double suction pump. The pump comprises a suction chamber, a pump case, an impeller, a shaft, a packaged mechanical seal device arranged between the pump case and the shaft, an impeller ring seal device and a mechanical seal flushing device, wherein the suction chamber comprises a suction port, a flow distributing section and a spiral section; the flow splitting section comprises a left passage, a right passage and a volute wall between the left passage and the right passage; the volute wall is provided with a water distributing tongue extending towards the suction port; and the outer surface of the flow distributing section of the suction chamber is provided with at least one radial reinforcing rib which encircles the flow distributing section by a circle. The double suction pump solves the technical problems of low efficiency of the suction chamber, long time of hydraulic strength tests, easily failed mechanically sealed brake device and poorsealing effect of the ring, improves the efficiency of the suction chamber, shortens the testing time, reduces tooling, and stops the problems that the brake device flicks and fails in a high pressure working environment.

Description

technical field [0001] The invention relates to a double suction pump. Background technique [0002] The existing double suction pump has the following problems: [0003] 1. The volute wall in the suction chamber is a round head structure, such as figure 2 As shown, when the fluid is sucked into the pump, it is resisted by the flow around the volute wall, resulting in low efficiency of the suction chamber. [0004] 2. When the pump is working, the suction chamber bears the suction pressure, which is relatively low, and the volute of the pressure water chamber bears high pressure. Because each pump body needs to be tested for hydraulic strength during production, in order to prevent the suction chamber under low pressure from being unable to withstand high pressure, it is necessary to pressurize the suction chamber and the pressure water chamber separately. However, special tooling is required to isolate the suction chamber and the pressurized water chamber for sub-chamber...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D1/00F04D29/42F04D29/08F04D29/22F04D29/70
CPCF04D1/006F04D29/167
Inventor 曾伟张惠民郭振学张洪奎王可中马育杨文新杨延广金建树胡钟兵
Owner 西安航天泵业有限公司
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