阅读说明：本技术 一种涡轮增压机组空气旁通挡板防喘振方法 (Anti-surge method for air bypass baffle of turbocharger unit ) 是由 贾韧锋 安仲玉 范伟远 李攸 姜鑫 于 2021-08-31 设计创作，主要内容包括：本发明的目的在于提供一种涡轮增压机组空气旁通挡板防喘振方法,根据燃油流量调节阀反馈信号,获取燃油流量调节阀开度；根据喷油器反馈信号,获取喷油器工作状态；根据燃油流量调节阀开度、喷油器工作状态,控制涡轮增压机组空气旁通挡板开度。本发明方法简单,便于实现,可以高效地解决涡轮增压机组空气旁通挡板喘振问题。(The invention aims to provide an anti-surge method for an air bypass baffle of a turbocharger unit, which comprises the steps of obtaining the opening degree of a fuel flow regulating valve according to a feedback signal of the fuel flow regulating valve; acquiring the working state of the oil sprayer according to the feedback signal of the oil sprayer; and controlling the opening of the air bypass baffle of the turbocharger set according to the opening of the fuel flow regulating valve and the working state of the fuel injector. The method is simple and convenient to realize, and can efficiently solve the problem of surge of the air bypass baffle of the turbocharger unit.)

1. An anti-surge method for an air bypass baffle of a turbocharger unit is characterized by comprising the following steps:

(1) according to the feedback signal of the fuel flow regulating valve, acquiring the opening degree of the fuel flow regulating valve:

(2) acquiring the working state of the oil sprayer according to the feedback signal of the oil sprayer:

(3) the fuel injector comprises a No. 1 fuel injector, a No. 2 fuel injector, a No. 3 fuel injector and a No. 4 fuel injector, and when the opening of the fuel flow regulating valve is less than 30 percent:

the No. 1 oil sprayer works, the No. 2, 3 and 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger unit is 85 +/-1%;

1. the No. 2 oil sprayer works, the No. 3 and No. 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger set is 65 +/-1%;

1. the No. 2 and No. 3 oil injectors work, the No. 4 oil injector does not work, and the opening of the air bypass baffle of the output turbocharger unit is 45 +/-1%;

1. the No. 2, 3 and 4 oil injectors work, and the opening degree of an air bypass baffle of the output turbocharger unit is 20 +/-1%;

(4) when the opening degree of the fuel flow regulating valve is more than or equal to 30 percent:

the No. 1 oil sprayer works, the No. 2, 3 and 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger unit is 75 +/-1%;

1. the No. 2 oil sprayer works, the No. 3 and No. 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger unit is 50 +/-1%;

1. the No. 2 and No. 3 oil injectors work, the No. 4 oil injector does not work, and the opening of the air bypass baffle of the output turbocharger unit is 15 +/-1%;

1. and the No. 2, 3 and 4 oil injectors work, and the opening degree of the air bypass baffle of the output turbocharger set is 0.

Technical Field

The invention relates to an anti-surge method for a turbine, in particular to an anti-surge method for a turbocharger set.

Background

The turbocharger set is used as important energy auxiliary equipment in industrial production, so that fuel can be fully combusted, and the combustion efficiency is improved. During the operation of the turbocharger unit, the air bypass baffle of the turbocharger unit often generates surge, and the working efficiency and the service life of the turbocharger unit are seriously influenced. The opening of the air bypass baffle is related to the opening of the fuel flow regulating valve and the working state of the fuel injector, and if the opening of the air bypass baffle is not well coordinated with the opening of the fuel flow regulating valve and the working state of the fuel injector, the air bypass baffle is easy to surge. In order to better operate the turbocharger unit, the problem of surge of the air bypass baffle of the turbocharger unit must be solved.

Disclosure of Invention

The invention aims to provide an anti-surge method for an air bypass baffle of a turbocharger unit, which can solve the problem of surge of the air bypass baffle of the turbocharger unit and the like.

The purpose of the invention is realized as follows:

the invention discloses an anti-surge method for an air bypass baffle of a turbocharger unit, which is characterized by comprising the following steps:

(1) according to the feedback signal of the fuel flow regulating valve, acquiring the opening degree of the fuel flow regulating valve:

(2) acquiring the working state of the oil sprayer according to the feedback signal of the oil sprayer:

(3) the fuel injector comprises a No. 1 fuel injector, a No. 2 fuel injector, a No. 3 fuel injector and a No. 4 fuel injector, and when the opening of the fuel flow regulating valve is less than 30 percent:

the No. 1 oil sprayer works, the No. 2, 3 and 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger unit is 85 +/-1%;

1. the No. 2 oil sprayer works, the No. 3 and No. 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger set is 65 +/-1%;

1. the No. 2 and No. 3 oil injectors work, the No. 4 oil injector does not work, and the opening of the air bypass baffle of the output turbocharger unit is 45 +/-1%;

1. the No. 2, 3 and 4 oil injectors work, and the opening degree of an air bypass baffle of the output turbocharger unit is 20 +/-1%;

(4) when the opening degree of the fuel flow regulating valve is more than or equal to 30 percent:

the No. 1 oil sprayer works, the No. 2, 3 and 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger unit is 75 +/-1%;

1. the No. 2 oil sprayer works, the No. 3 and No. 4 oil sprayers do not work, and the opening degree of the air bypass baffle of the output turbocharger unit is 50 +/-1%;

1. the No. 2 and No. 3 oil injectors work, the No. 4 oil injector does not work, and the opening of the air bypass baffle of the output turbocharger unit is 15 +/-1%;

1. and the No. 2, 3 and 4 oil injectors work, and the opening degree of the air bypass baffle of the output turbocharger set is 0.

The invention has the advantages that:

1. according to the invention, the opening of the air bypass baffle is controlled according to the relationship among the opening of the air bypass baffle of the turbocharger unit, the opening of the fuel flow regulating valve and the working state of the fuel injector, so that the surge of the air bypass baffle can be effectively prevented.

2. The method is simple and has obvious effect.

Drawings

FIG. 1 is a flow chart of the present invention.

Detailed Description

The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:

referring to fig. 1, the technical scheme adopted by the invention is an anti-surge method for an air bypass baffle of a turbocharger unit, which comprises the following steps:

(1) and acquiring the opening degree of the fuel flow regulating valve according to the feedback signal of the fuel flow regulating valve.

(2) And acquiring the working state of the oil sprayer according to the feedback signal of the oil sprayer.

(3) When the opening degree of the fuel flow rate regulating valve is less than 30%,

1) and if the No. 1 oil sprayer works and the No. 2, 3 and 4 oil sprayers do not work, the opening degree of the air bypass baffle of the output turbocharger set is 85 percent.

2) And if the No. 1 and No. 2 oil injectors work and the No. 3 and No. 4 oil injectors do not work, the opening degree of the air bypass baffle of the output turbocharger set is 65 percent.

3) And if the No. 1, 2 and 3 oil injectors work and the No. 4 oil injector does not work, the opening degree of the air bypass baffle of the output turbocharger set is 45 percent.

4) And when the No. 1, 2, 3 and 4 oil injectors work, the opening degree of the air bypass baffle of the output turbocharger unit is 20 percent.

(4) When the opening degree of the fuel flow regulating valve is more than or equal to 30 percent,

1) and if the No. 1 oil sprayer works and the No. 2, 3 and 4 oil sprayers do not work, the opening degree of the air bypass baffle of the output turbocharger set is 75 percent.

2) And if the No. 1 and No. 2 oil injectors work and the No. 3 and No. 4 oil injectors do not work, the opening degree of the air bypass baffle of the output turbocharger set is 50 percent.

3) And if the No. 1, 2 and 3 oil injectors work and the No. 4 oil injector does not work, the opening degree of the air bypass baffle of the output turbocharger set is 15%.

4) And when the No. 1, 2, 3 and 4 oil injectors work, the opening degree of the air bypass baffle of the output turbocharger unit is 0%.

The present invention is described in detail below with reference to a specific example.

(1) If a turbocharger set with an air bypass baffle frequently generating surge is provided, the opening degree of the current fuel flow regulating valve is 20% according to the feedback signal of the fuel flow regulating valve.

(2) According to the feedback signal of the oil sprayer, the current working state of the oil sprayer is obtained as follows: 1. no. 2 and No. 3 fuel injectors work, and No. 4 fuel injectors do not work.

(3) And according to the opening degree of the current fuel flow regulating valve and the working state of the oil sprayer, the opening degree of an air bypass baffle of the output turbocharger set is 45%.

Experiments prove that the method can efficiently solve the problem of surge of the air bypass baffle of the turbocharger unit.