CN103291638A

CN103291638A - Method for protecting standby state of pressurizing machine

Info

Publication number: CN103291638A
Application number: CN2013102291632A
Authority: CN
Inventors: 王育飞; 王永亮; 赵保才; 王瑞红
Original assignee: Shanxi Taigang Stainless Steel Co Ltd
Current assignee: Shanxi Taigang Stainless Steel Co Ltd
Priority date: 2013-06-09
Filing date: 2013-06-09
Publication date: 2013-09-11

Abstract

The invention relates to a method for protecting a standby state of a pressurizing machine. The method for protecting the standby state of the pressurizing machine includes the following steps that firstly, the pressurizing machine is normally used in a standby mode and in the state of delivering electricity and an inlet valve and an outlet valve of the pressurizing machine are in an automatic state and have conditions of being started at any time; secondly, nitrogen at a shaft seal is opened in order to ensure zero leakage of gas at the shaft seal of the pressurizing machine and zero leakage is achieved by using pressure of the nitrogen to balance pressure in the pressurizing machine; thirdly, a dust valve of an entrance of the pressurizing machine is opened within a range of 5% to 20% and the pressure in the pressurizing machine will not be excessive. The method for protecting the standby state of the pressurizing machine protects the pressuring machine against damage caused by excessively high pressure of the nitrogen, reduces overhauling frequencies caused by leakage of the gas at the shaft seal and eliminates potential safety risks caused by leakage of the gas at the shaft seal.

Description

A kind of guard method that adds the press stand-by state

Technical field:

The invention belongs to for protection field under the gas compressor stand-by state, be specifically related to a kind of guard method that adds the press stand-by state.

Background technique:

The gas burning system gas compressor selects for use centrifugal blower to pressurize, and add press structural type and adopt dual-gripper substantially, single suction, one-stage centrifugal formula blower, seal form adopts graphite grazing+nitrogen-sealed substantially, guest machine is imported and exported the dirt air valve and is in the complete shut-down state, because axle envelope place is connected with nitrogen, so often cause more than the casing internal pressure 15Kpa, the water separator that happens occasionally blows the water seal event, big owing to the casing internal pressure when often starting shooting, add press and be in the bringing onto load startup, the time have the overcurrent breaking to take place, cause incuring loss through delay the available machine time, have a strong impact on the normal boot-strap operation.

Summary of the invention

In order to improve the working life of gas burning system gas compressor; realization adds the normal standby status of press; assurance adds the inner micro positive pressure of press; avoid because under the valve closing state; nitrogen enters that to add press inner and cause and add the press superpressure; damage adds press apparatus, the invention provides a kind of guard method that adds the press stand-by state.

In order to guarantee the coal gas zero leakage at an envelope place, open axle envelope place nitrogen, add press content pressure by the nitrogen pressure balance, realize an envelope place zero leakage; Simultaneously, to add the press inner overpressure in order preventing from causing owing to nitrogen pressure is too high, to cause device damage, will add press import dirt air valve and slightly open, realize adding the intact standby of press.

Technological scheme of the present invention is as follows:

1, it is normally standby to add press, is in and send electricity condition, adds the press terminal valve and is in auto state, possesses starting condition at any time.

2, for the zero leakage of the arbor envelope place coal gas that guarantees to pressurize, axle envelope place nitrogen is opened, come balance to add the press internal pressure by nitrogen pressure, realize zero leakage.

3, will add press import dirt air valve and slightly open, its unlatching scope is 5 ~ 20%, guarantees to add not superpressure of press internal pressure.

The present invention has avoided causing damage to add press apparatus because nitrogen pressure is too high; Reduced owing to the axle envelope is revealed the maintenance frequency that coal gas causes; Eliminate the axle envelope and revealed the potential safety hazard that coal gas produces.

Embodiment

The method is implemented at Taiyuan Iron and Steel Co. energy source and power head factory gas pressure system:

By said method, add press and entered normally standbyly, and the parameters data all satisfy production requirement.Therefore, from this improvement situation as can be seen, have only raising and improvement by the functions of the equipments precision, constantly improve the problem that improves equipment and exist, could finish our factory production and operation task better, improve professional workforce's professional skill, and can improve post personnel operation technical ability, thereby guarantee the normal operation of our factory safety in production, our factory is is still researched and analysed continuing, deal with problems by constantly pinpointing the problems, improve the competitive ability of our factory.

Claims

1. guard method that adds the press stand-by state the steps include: (1), to add press normally standby, is in and send electricity condition, adds the press terminal valve and be in auto state, possesses starting condition at any time;

(2), for the zero leakage of the arbor envelope place coal gas that guarantees to pressurize, axle envelope place nitrogen is opened, come balance to add the press internal pressure by nitrogen pressure, realize zero leakage;

(3), will to add press import dirt air valve unlatching scope be 5 ~ 20%, guarantees to add not superpressure of press internal pressure.