SU1285192A1 - Device for controlling pressure of compressed gas in manifold of compressor station - Google Patents

Abstract

The invention relates to compressor technology. The aim of the invention is to expand the control range, increase speed and reduce energy consumption. The device has a gas pressure regulator connected to the collector through a choke and a buffer tank, which is used to control the compressor capacity changes. The presence of one or more drainage chokes at the buffer tank makes it possible to speed up the retrofit of the pressure regulator to the current level of pressure maintenance necessary for time. 2 Il. (

Description

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The invention relates to a compressor technique and can be used to automatically control the pressure of a compressed gas.

The aim of the invention is to expand the control range, increase speed and reduce energy consumption.

FIG. 1 is a diagram of an apparatus for controlling the pressure of compressed gas in a manifold of a compressor station; pas figs. 2 is a graph of pressure changes over time over cycles.

A device for controlling the pressure of the compressed gas in the manifold of the compressor station contains pressure signal sensors 1, a unit connected to them, 2 controls, a compressor capacity controller 3, the device further comprising a buffer tank 4 connected by means of chokes 5 to the collector 6 and equipped with at least At least one drain line 7 with a choke 8 installed on it and a check valve 9 with a forced drive. 10-12 consumers are connected to the collector. Compressed gas enters the manifold from the compressor 13.

The device works as follows.

During the time tj (Fig. 2) it is necessary to maintain the average pressure in the manifold 6 and before consumers 10-12 equal P. (For maintaining such pressure for time t the valves 9 should maintain a signal keeping them in the closed position. during the time interval t in the collector 6, it is necessary to maintain an average pressure Pg greater than Pi.

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In this case, the pressure in the buffer tank 4 is less than in the collector 6 by the amount and PI. Consequently, in order for the contacts of the pressure sensors 1 to operate at a given base range Pj in the buffer tank 4, the pressure in the manifold 6 must be Pr F P + dRd, i.e. During the time iz, the compressor capacity control system 13 maintains the average pressure upstream of the receivers Pr.

When opening the stop valve 9 at the other drainage droplets 8, the difference in pressure in the manifold 6 and the buffer tank 4 is DG. and the average pressure in front of consumers 10-12 is maintained for a time tj.

The expansion of the control range, the increase in speed and the reduction of the energy consumption of the drain are due to the possibility of pressure adjustment depending on the changing operating conditions of the receivers.

Claims (1)

Invention Formula A device for controlling the pressure of a compressed gas in a manifold of a compressor station, comprising signal pressure sensors, a control unit connected thereto and a compressor capacity regulator, characterized in that, in order to expand the control range, increase speed and reduce energy consumption, the device further comprises a buffer capacity, connected with throttles with a collector and provided with at least one drain line with a choke installed on it and stop valves with n inuditelnym actuator and the pressure sensors are connected to the container. X Y 3 ; g Fy R / v / 7a cJ: h rWWWlW