CN102506299A

CN102506299A - Method for reducing running pressure of common compressed air pipe network

Info

Publication number: CN102506299A
Application number: CN2011103201615A
Authority: CN
Inventors: 高智江; 陈廷军; 张立伟; 王学明
Original assignee: Shougang Corp; Qinhuangdao Shouqin Metal Materials Co Ltd
Current assignee: Shougang Group Co Ltd
Priority date: 2011-10-20
Filing date: 2011-10-20
Publication date: 2012-06-20
Anticipated expiration: 2031-10-20
Also published as: CN102506299B

Abstract

The invention discloses a method for reducing running pressure of a common compressed air pipe network, and belongs to the technical field of energy medium production and supply. A pressure adjustment device is arranged on a main common compressed air supply pipeline of an air compressor station, is positioned on a bypass pipeline of a common compressed air storage tank, and is used for monitoring common compressed air pressure in the station and adjusting the openness of a valve in real time so as to adjust the flow of compressed air and guarantee that the air pressure entering in a dryer is relatively stable; during running, an inlet valve of the air storage tank is closed, and a bypass valve is opened, so that the common compressed air is supplied by the bypass valve and the pressure adjustment device; the pressure adjustment device adjusts upstream pressure to be stabilized between 0.73 and 0.78 MPa, and reduces downstream pressure to be between 0.5 and 0.6 MPa, so that a user can use the common compressed air; furthermore, an oil-free and water-free compressed air pipe network can run stably under high pressure, and a common compressed air pipe network can run under low pressure, so that unnecessary waste is reduced.

Description

A kind of method that reduces common compress wind pipe network running pressure

Technical field

The invention belongs to energy medium production and supply technical field, a kind of method that reduces common compress wind pipe network running pressure particularly is provided, be applicable to plant area's compress wind centralized production such as metallurgy, petrochemical industry, through the situation of the unified supply of comprehensive pipe network.

Background technique

At present, plant area of many enterprises compress wind is by the air compressor plant centralized production, through the unified supply of plant area's comprehensive pipe network.The anhydrous compress wind of nothing oil through drying process; Because of the high using scope of its quality more and more wider; Use amount increases gradually, and main users is that each pneumatic element, measuring instrument and monitoring camera are first-class, and required pressure is 0.4～0.6MPa; Mostly use the user for being interrupted, higher to the stability requirement of working pressure; And common compress wind is mainly caster two cold spray and uses wind with wind and maintenance purging, and required pressure gets final product greater than 0.35MPa.Atmosphere directly is delivered into pipe network and is common compress wind after being compressed by air compressor; And there is not oily anhydrous compress wind is to be prepared through purge drying equipment by the common compress wind that air compressor is produced again; Purge drying equipment at different levels normally hinder damage between 0.08～0.2MPa; For guaranteeing that no oily anhydrous compress wind ductwork pressure remains on 0.5～0.6MPa; Common compress wind pressure will be brought up to more than the 0.6MPa, even the 0.8MPa operation.

Summary of the invention

The object of the present invention is to provide a kind of method that reduces common compress wind pipe network running pressure; Guaranteeing under the stable prerequisite of no oily anhydrous compress wind supply pressure; Reduce common compress wind pipe network running pressure, reach energy saving purposes, guarantee the stable supply of no oily anhydrous compress wind.

According to compress wind actual production and supply present situation, for guaranteeing the stable supply of no oily anhydrous compress wind, should guarantee the inlet pressure of purge drying equipment, be that the use amount that reduces common compress wind then can realize through the discharge pressure that reduces its pipe network.

The present invention sees boost pressure controlling device on the main line off in the common compress wind of air compressor plant, and the pressure regulator mounting point is positioned on the bypass line of common force feed wind gas holder.Pressure regulator is through the monitoring to common compress wind pressure in standing, and comes adjustment valve opening in real time with the through-current capacity of adjustment compress wind and then to guarantee to get into the blast of exsiccator relatively stable.During operation, the gas holder inlet valve is closed, bypath valve is opened, and common compress wind is seen off through bypath valve and pressure regulator; The gas holder outlet valve is opened, and gas holder still plays the effect that buffering is stablized ductwork pressure.Pressure regulator adjustment upstream pressure is stabilized in 0.73～0.78MPa, and with assurance drying apparatus inlet pressure, and then the pressure stability of the no oily anhydrous compress wind pipe network of assurance is at 0.6～0.64MPa; The pressure of (being common compress wind pipe network) remains on 0.5～0.6MPa behind the reduction valve, satisfies common compress wind user's use.Be implemented in when guaranteeing that no oily anhydrous compress wind pipe network stable high voltage is moved, common compress wind pipe network " step-down " operation reduces unnecessary waste.

Description of drawings

Fig. 1 is for reducing the enforcement sketch of common pipe network compress wind pipe network running pressure.Wherein, pneumatics unit 1, pressure monitoring point 2, common compress wind gas holder bypass valve 3; Pressure regulator 4, cut-off valve 5, common compress wind gas holder suction valve 6; Common compress wind gas holder 7, common compress wind gas holder outlet valve 8, common compress wind house steward sees valve 9 off; Purge drying device 10 does not have oily anhydrous compress wind gas holder suction valve 11, does not have oily anhydrous compress wind gas holder 12; Do not have oily anhydrous compress wind gas holder outlet valve 13, do not have oily anhydrous compress wind gas holder bypass valve 14, do not have oily anhydrous compress wind house steward and see valve 15 off.

Embodiment

In conjunction with on-site actual situations, with on the bypass line of pressure regulator installation and common force feed wind gas holder (like Fig. 1).During operation, the gas holder inlet valve is closed, bypath valve is opened, and common compress wind is seen off through bypath valve and controlling device; The gas holder outlet valve is opened, and gas holder still plays the effect that buffering is stablized ductwork pressure.Change according to the Processing capacity of air compressor unit and exsiccator unit and each user's of plant area use amount, constantly adjust the pressure of unit operation mode and official website operation.Through one month adjustment trial run, upstream pressure is remained on 0.78MPa, with guarantee no oily anhydrous compress wind ductwork pressure remain on more than the 0.6MPa for a long time and pressure more stable; Common compress wind pipe network running pressure drops to 0.55MPa by 0.75MPa.Under identical production scale, the average use amount of common compress wind is by 375m ³/ min drops to 280m ³/ min descends 25.3%.

Claims

1. a method that reduces common compress wind pipe network running pressure is characterized in that see boost pressure controlling device on the main line off in the common compress wind of air compressor plant, the pressure regulator mounting point is positioned on the bypass line of common force feed wind gas holder; Pressure regulator is through the monitoring to common compress wind pressure in standing, and comes adjustment valve opening in real time with the through-current capacity of adjustment compress wind and then to guarantee to get into the blast of exsiccator relatively stable; During operation, the gas holder inlet valve is closed, bypath valve is opened, and common compress wind is seen off through bypath valve and pressure regulator; The gas holder outlet valve is opened, and gas holder still plays the effect that buffering is stablized ductwork pressure; Pressure regulator adjustment upstream pressure is stabilized in 0.73～0.78MPa, and with assurance drying apparatus inlet pressure, and then the pressure stability of the no oily anhydrous compress wind pipe network of assurance is at 0.6～0.64MPa; Pressure behind the reduction valve remains on 0.5～0.6MPa, satisfies common compress wind user's use; Be implemented in when guaranteeing that no oily anhydrous compress wind pipe network stable high voltage is moved, common compress wind pipe network brownout operation reduces unnecessary waste.