RU1790684C - Hydropneumatic accumulator of compressed air - Google Patents

Abstract

The invention relates to mining. The purpose of the invention is to reduce material and labor costs and increase work efficiency. The accumulator has air and water chambers located at the same level and connected to each other by a channel with a pump. Moreover, the specified channel is made in the form of suction and discharge pipelines, interconnected by a pipe with a pump and a valve. Each chamber is piped to a compressor and consumers. 1 s.p. f-ly, 1 ill.

Description

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The invention relates to the mining industry and can be used in the construction of hydropneumatic accumulators of compressed air to stabilize its pressure among consumers.

A hydro-pneumatic compressed air accumulator is known, comprising hydraulic and pneumatic chambers located at different levels, interconnected by a borehole and provided with supply and supplying compressed air pipelines on which control valves are installed. A disadvantage of the known technical solution is: large labor costs during its construction, since it is necessary to make a hydro-chamber and a pneumatic chamber, as well as vertical production connecting these chambers, its operation is cyclical, since when a pneumatic chamber is charged, it is necessary with air,

going from the compressor station to displace water into the hydraulic chamber, and during its operation the water again enters the pneumatic chamber, this cycle is repeated; the inability to control the pressure of compressed air flowing to consumers due to the constant hydrostatic pressure of the water column; the pressure of the compressed air in the pneumatic chamber is increased by supplying additional compressed air to the pressure chamber.

The closest in technical essence is a hydropneumatic accumulator containing hydropneumatic chambers located at different levels and communicating with each other by means of a well, a pipeline exiting the well, connected to a pump and a non-return valve, and a throttle valve installed in parallel or sequentially one after another and shutoff valve that is interlocked with

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the pump. A pump with control equipment serves to maintain the compressed air pressure at the required level. A disadvantage of the known technical solution is: high labor costs and material costs for the construction of a hydropneumatic accumulator; low operational efficiency due to the cyclical nature of charging the pneumatic chamber, the difficulty of monitoring its operation and maintenance, since the hydro chamber and the live chamber are located at different levels (for example, 40-100 m) and the inability to control the pressure of the compressed air going to the consumers.

The purpose of the invention is to reduce material and labor costs in the construction of a hydropneumatic accumulator, increase its efficiency, as well as the ability to control the pressure of compressed air at consumers.

This goal is achieved by the fact that in the well-known hydropneumatic accumulator comprising an air chamber connected by pipelines to a compressor and a consumer, and for water, communicated by a channel for water flow between the chambers with the pump and the shut-off elements, according to the invention, the chambers are placed on the same level and the channel for the flow of water is made in the form of suction and discharge pipelines, interconnected by a pipe with a pump located on it and a check valve, one of the chambers being connected to a ma in this case, each chamber is connected by pipelines to the compressor and consumers. At the same time, a pressure reducing valve is installed in the hydraulic pneumatic chambers on the discharge pipe.

The drawing shows a hydropneumatic accumulator stor tor, general view.

The hydropneumatic accumulator of compressed air consists of two sealed hydropneumatic chambers 1 and 2 located at the same level and interconnected by the principle of communicating vessels by the suction-discharge pipe 3, consisting of the suction 4 and discharge 5 pipelines with valves 6, 7, 8 and 9, a pump 10 for pumping water between the chambers and creating additional compressed air pressure therein, a supply-discharge duct 11, including a supply 12 and a discharge 13 ducts with valves 14, 15, 16 and 17 and the check valve 18 of the sump 19, the pipe 20 for filling gidropnevmokamery 2 and water,

in addition, to supply water to the hydropneumatic accumulator and pressure sensors 21 and a check valve 22 mounted on the suction-discharge pipe 3, liquid level sensors 23 and 24 and pressure reducing valves 25 installed on the discharge pipe 6.

Hydropneumatic accumulator operates as follows.

0 The work of the hydropneumatic accumulator is preceded by work: filling the hydropneumatic chambers 1 and 2 with water through the pipe 20 with open valves 8 and 9 to a minimum level. Sensors are triggered

5, the liquid level 23 and the valves 8 and 9 are closed and the valve 15 is opened. Filling with water continues only to the hydropneumatic chamber 2, and the hydropneumatic chamber 1 is filled with air through air duct 11 and the valve 15 with pressure developed by the compressor unit. Gate valves 6, 7, 8, 9, 14, 16 and 17 are closed. When the maximum water level in chamber 2 is reached, the liquid level sensor 24 is activated and the valve on the pipe 20 and valve 15 are closed; valve 16 is opened simultaneously and air from the compressor unit starts to flow into chamber 2, and pump 10 is turned on, and

0, the valves 8 and 6 also open and water begins to flow into the chamber 1, compressing the air to the pressure set by pressure reducing valve 25 and pressure sensor 21. When a certain pressure of compressed air 5 in the chamber 1 is reached, for example 0.1 MPa, the pressure sensor 21 is activated, the pump 10 stops and the shutters 6 and 8 are closed. The hydropneumatic accumulator is charged. Simultaneously with the stop of the pump 10, the valve 14 opens and the compressed air goes to the consumer. As the pressure of compressed air in the chamber 1 decreases, the pressure reducing valve 25 and the pressure sensor 21 are activated, periodically turning on and off on the fifth 10 and the valves 6 and 8. As the air flows from the chamber 1 and it is filled with water through the pump 10 from the chamber 2, the Measure 2 is filled with air through ducts 12, 11 and valve 16. Upon reaching

0 the maximum water level in the hydropneumatic chamber 1, the liquid level sensor 24 of this chamber is activated, the valve 15 opens, and the valves 14 and 16 are closed, the pump 10 is also turned on and open 5 from the valve 7 and 9 and the water from chamber 1 begins to flow into chamber 2 creating additional pressure of compressed air in it. Upon reaching a certain pressure of compressed air in the chamber 2, the pressure sensor 21 is activated

the valves 7 and 9 are closed, the pump 10 is turned on, the valve 17 is opened and the compressed air from the chamber 2 begins to flow to the consumer. Further work cycle

hydropneumatic chambers 1 and 2 are repeated. Reg. 5 wire 5.

Claims (2)

SUMMARY OF THE INVENTION 1. A hydro-pneumatic compressed air accumulator including a chamber for air connected by pipelines to a compressor and a consumer, and for water, communicated by a channel for water flow between chambers with a pump and shut-off elements, characterized in that, in order to reduce material and labor costs and increase its efficiency, the chambers are placed on the same level, and the channel for the flow of water is made in the form of a suction and discharge pipe Tehred M. Morgenthal Order 371 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discover at the USSR State Committee for Science and Technology 113035, Moscow, Zh-35, Rauska nab., 4/5 Compressed air pressure in the chambers 1 and 2, and therefore for the consumer, is calibrated by a pressure reducing valve 25 installed on the discharge pipe, interconnected by a pipe with a pump and a non-return valve located on it, one of the chambers being connected to the main water pipe, wherein each chamber is connected by pipelines to a compressor and consumers, 2. The accumulator according to claim 1, with the exception that, in order to regulate the pressure of compressed air, a pressure reducing valve is installed in the hydropneumatic chambers on the discharge pipe. 21 Proofreader A. Kozoriz