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Volute back-flushing device and method

A technology of blowback device and volute, which is applied to components of pumping devices for elastic fluids, pump control, non-variable pumps, etc., which can solve the problems of manpower consumption, increased maintenance costs, high vibration value of air compressors, etc. problem, achieve the effect of reducing workload, improving performance and reducing maintenance cost

Inactive Publication Date: 2015-09-16
CSSC GUANGZHOU WENCHONG DOCKYARD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the air compressor is shut down, the air compressor used at the seaside will have some moisture remaining in the volute due to the relatively high air humidity at the seaside, which will easily cause the impeller, diffuser and the inner wall of the volute to oxidize and rust, resulting in air pollution. The vibration value of the compressor is too high, which will affect the normal use of the air compressor
And dismantling the rusty volute not only consumes manpower, but also increases the maintenance cost

Method used

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  • Volute back-flushing device and method
  • Volute back-flushing device and method
  • Volute back-flushing device and method

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Experimental program
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Effect test

Embodiment 1

[0023] Please also see figure 2 and image 3 , figure 2 It is a schematic diagram of the gas flow of the air compressor supplied to the air system of the factory building according to the present invention; image 3 It is a schematic diagram of the volute blowback device 10 of the present invention. The volute blowback device 10 includes a filter purification device 11, a blowback inlet valve 12, a first pressure gauge 13, a second pressure gauge 14, a blowback outlet valve 15, copper pipes 16, copper pipe matching joints, and a connecting device 17 And blowback control valve 18.

[0024] As mentioned in the background art, a pressure sensor 19 is set in the gas source control pipeline, and converts the gas pressure of the plant air system into an electrical signal and sends it to the gas source control unit 20, and the gas source controller according to the pressure The signal sent by the sensor controls the opening and closing of the intake valve and the unloading valv...

Embodiment 2

[0034] The volute blowback device in this embodiment further includes a controller and a warning light (not shown in the figure) on the basis of the structure of Embodiment 1. The first pressure gauge 12 and the blowback intake valve 13 are respectively connected with the controller signal, and the first pressure gauge 13 transmits the gas pressure signal entering the filter purification device 11 to the controller, and the controller according to the first The signal value of a pressure gauge 13 controls the opening and closing of the blowback intake valve 12 . Simultaneously, the second pressure gauge 14 and the blowback gas outlet valve 15 are respectively connected with the controller signal, and the second pressure gauge 14 transmits the gas pressure signal filtered by the filter purification device 11 to the controller, and the controller The device controls the opening and closing of the blowback outlet valve 15 by comparing whether the pressure difference between the s...

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Abstract

The invention discloses a volute back-flushing device and method. The volute back-flushing device comprises a filtering and purifying device, a copper pipe and a back-flushing control valve, the filtering and purifying device is arranged at an air incoming end of an air source control pipeline of an air compressor, one end of the copper pipe is connected with an air outgoing end of the air source control pipeline of the air compressor while the other end of the same is connected with a volute of the air compressor, and the back-flushing control valve is arranged in the copper pipe. An inter-stage pipeline of the volute of the air compressor is designed in a modified manner, and the filtering and purifying device and the copper pipe are additionally mounted, so that dry and clean compressed air after being filtered can be constantly fed to the volute when the air compressor stops, the volute is still maintained dry when the air compressor stops, workload for demounting and checking of the volute is reduced, and maintenance cost is lowered.

Description

technical field [0001] The invention relates to the field of air compressors, in particular to a volute blowback device and a method thereof. Background technique [0002] In the air system of a closed plant, the air source of each system of the plant is usually compressed by an air compressor to obtain compressed gas and then lead to each system through a pipeline. And air compressor (hereinafter referred to as air compressor) is widely used as the air pressure generating device of compressed air because of its simple operation and convenient use. Currently commonly used air compressors include: gas compression pipelines, intake valves, volute sets, impellers, diffusers, coolers, unloading valves, air source control pipelines, pressure sensors and air source control units. The inlet valve is arranged at the inlet end of the gas compression pipeline, and the volute set is arranged on the gas compression pipeline. The volute set includes a first-stage volute, a second-stage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/70F04D27/00
Inventor 张健戴宁冯木水
Owner CSSC GUANGZHOU WENCHONG DOCKYARD CO LTD