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Diffuser bypass anti-surge device

A diffuser and anti-surge technology, which is used in the components of pumping devices for elastic fluids, machines/engines, non-variable-capacity pumps, etc., to expand the flow range and solve the surge problem.

Inactive Publication Date: 2016-08-03
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a diffuser bypass anti-surge device that can solve the surge problem of the supercharger at low load and expand the flow range of the supercharger

Method used

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  • Diffuser bypass anti-surge device
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Embodiment Construction

[0010] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0011] combine Figure 1~2 , the diffuser shell 6 is fixedly connected with the diffuser blade 1, when the baffle plate 7 is attached to the diffuser blade 1, the gas can only flow in the flow channel formed between the two blades. The baffle wall 5 is fixed on the diffuser shell 6, the baffle 7 is placed between the baffle wall, the baffle 7 can move up and down, the baffle 7 is fixed with the solenoid valve stem 3, the movement of the solenoid valve stem 3 is controlled Solenoid valve 2 is controlled, and solenoid valve 2 is controlled by the current delivered by the diesel engine control system through the solenoid valve control circuit.

[0012] The control process of the present invention is as follows: the diesel engine control system monitors the speed, pressure and flow of the supercharger, and when it is found that the supercharger is approaching the sur...

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PUM

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Abstract

The invention aims at providing a diffuser bypass anti-surge device. The diffuser bypass anti-surge device comprises a diffuser shell, a diffuser blade and an electromagnetic valve; the diffuser blade is fixedly installed on the diffuser shell, a baffle protection wall is fixed to the diffuser shell, the electromagnetic valve is arranged on the baffle protection wall, and a baffle capable of moving vertically is installed at the tail end of an electromagnetic valve rod of the electromagnetic valve; and the stroke of the baffle is located in the baffle protection wall, when the electromagnetic valve rod is located at the bottommost end, the baffle and the diffuser blade are attached, and after the electromagnetic valve rod is lifted, a pressure face and a force suction face of the diffuser blade are communicated. By means of the diffuser bypass anti-surge device, the problem of surge of a supercharger under a low load can be solved, and the flow scope of the supercharger is enlarged.

Description

technical field [0001] The invention relates to a supercharger, in particular to an anti-surge device of the supercharger. Background technique [0002] Superchargers are widely used in the field of diesel engines, and have reached the level of non-supercharging. It can be said that superchargers have become an essential part of diesel engines. However, the working range of the diesel engine is much larger than that of the supercharger, which makes it very difficult to match the supercharger and the diesel engine. In general, the supercharger is usually matched in the high load range of the diesel engine, which causes the flow rate of the supercharger to be too small when the diesel engine is under low load. When the supercharger flow rate is too small, it will cause the supercharger to surge, which may seriously cause damage to the supercharger. [0003] Therefore, avoiding the surge of the supercharger has become the focus and difficulty of matching the supercharger dies...

Claims

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Application Information

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IPC IPC(8): F04D29/66
CPCF04D29/667
Inventor 王银燕李旭王贺春杨传雷孙永瑞陈德福张超
Owner HARBIN ENG UNIV