Gas distribution station

 

(57) Abstract:

The invention relates to gas industry and can be used to reduce gas pressure in the gas distribution stations of main gas pipelines. The device includes the process unit with the gas pipelines of high and low pressure vortex tube with connections to the hot and cold gas streams, collecting tank condensate piping hot and cold streams of gas, a pressure regulator, a refrigerator and a temperature control unit and supplies the parameters established in the vortex tube and consisting of a diaphragm mechanism, the rod and the wedge valve, and one end of the rod is connected with a wedge-shaped flap overlying the nozzle entering the vortex tube, and the other end connected to the membrane of the membrane mechanism, namebrand cavity through which an adjustable valve connected to the pipe hot gas flow. The capacity of the condensate is connected through a stop valve to the inlet of the hot flow vortex tube. The technical result of the invention is to empower the gas station and the reduction of its dimensions. 1 C.p. f-crystals, 2 Il.

The invention apply the stations of main gas pipelines.

A device for regulating the gas pressure at gas distribution stations large bandwidth (author's certificate N 646318, MKI G 05 D 16/00, priority 16.05.75). This device includes sequentially installed on the gas heater and control valve, throttle, made in the form of the vortex tube, the entrance of which is connected to the gas line to the heater, separator, an input connected to the output of the heated stream, from the vortex tube, and the exit - exit the cooled gas stream from the vortex tube and the pipeline downstream of the regulating valve and mounted on the regulating valve heat exchanger, through which the output of the separator is connected to the output of the cooled stream from the vortex tube.

The disadvantages of the known device are as follows:

the presence of gas heater, complicating the design of the device and requiring in the manufacture of material and labor costs. In addition, the gas heater consumes fuel gas that is burning, is released into the atmosphere as flue gas, polluting the environment;

the hot gas stream from the vortex tube, after selection by the moisture separator and condensate enters the pipeline until gas, required for stable operation of the pressure regulator and, as consequence, to decrease its functionality

Closest to the technical essence is the gas distribution station "Flow" (provisional patent of the Republic of Uzbekistan N 2061, MKI F 25 B 11/00, priority 16.03.93) (prototype) containing a high pressure gas pipeline, a vortex tube, pressure regulator with pulse tube heat exchanger, throttle and low pressure gas pipeline, while the vortex tube is installed at the entrance of the station so that its output for heated gas communicated through the separator and pressure regulator with gas pipeline of low pressure and an outlet for cooled gas communicated through the heat exchanger and the reactor with a gas pipeline of low pressure at the point located along the gas supply at the point of connection thereto of a pulse tube.

The disadvantages of the device selected as a prototype, as follows:

the presence of a separately executed separator, complicating the design of the station;

the presence of the inductor on the line of cold gas stream, which also complicates the design of the station;

the lack of regulation of cross-sectional sizes of jet entry, which reduces the technical is s gas.

The aim of the invention is to expand the functionality of the gas station and the reduction of its dimensions.

This objective is achieved in that in the gas station, containing the process unit with the gas pipelines of high and low pressure vortex tube with connections to the hot and cold gas streams, the capacity of the Cathedral condensate piping hot and cold gas flows, pressure regulator, refrigerator, put the temperature control unit and supplies the parameters established in the vortex tube and consisting of a diaphragm mechanism, the rod and the wedge valve, and one end of the rod is connected with a wedge-shaped flap overlying the nozzle entering the vortex tube, and the other end connected to the membrane, the membrane mechanism, namebrand cavity through which an adjustable valve connected to the pipe hot gas flow. And the capacity of the condensate is connected through a stop valve to the inlet of the hot flow vortex tube.

Use the vortex tube gas distribution stations have been added to the temperature control unit and consumable parameters enables ploy pipe in the technological equipment of the station in the necessary proportions, sufficient to prevent condensation in the pressure regulator and ensure stable operation of technological equipment.

Connecting the condensate tank via a stop valve directly to the hot pipe flow vortex tube eliminates the need for separate manufacturing of the separator, reducing the size of the station, saving material and labor costs.

The applicant does not know the structures of gas-distributing stations with temperature control unit and supplies the parameters established in the vortex tube, and connecting the condensate tank via a stop valve to the inlet of the hot flow vortex tube, which would allow to extend the functionality of the stations.

In Fig. 1 shows a diagram of a gas distribution station of Fig. 2 - section a-a in Fig. 1.

Gas distribution station (Fig. 1) contains the process unit 1, gas 2 and the bottom 3 of the pressure, a vortex tube 4. Vortex tube 4 is equipped with nozzles 5 hot and cold 6 gas streams. Pipe hot gas stream 5 is connected to the mechanical part through the pipe hot gas stream 7 from the pressure regulator 8. the SATA 11. The pressure regulator 8 is attached to the low-pressure gas pipeline 3. Pipe cold stream 6 is connected by a pipe 12 through the refrigerating chamber 13 with the low-pressure gas pipeline 3. In the upper part of the vortex tube 4 placed control unit temperature and expenditure parameters 14. Namebrand cavity diaphragm mechanism 15 (Fig. 2) site regulation of the temperature and expenditure parameters 14 is connected by a line 16 through valve 17 with the hot gas line 7. The rod 18 (Fig. 2) site regulation of the temperature and expenditure parameters 14 one end of which is connected to the diaphragm 19 of the diaphragm mechanism 15, and the other end provided with a wedge-shaped flap 20 for closing nozzle input 21 of the vortex tube 4.

Naturally the station operates as follows. Gas pipeline of high pressure 2 comes installed with technological unit 1, a vortex tube 4, known as vortex tube Wound-hilsa. In the vortex tube 4, by virtue of its design features, the gas is divided into two streams - hot and cold. Vortex tube 4 is also a separator of liquid particles and solid particles. Separated in the vortex tube 4 liquid particles and mechanical primecandidate 11. Then cleaned and dried gas pipeline hot stream 7 enters the pressure regulator 8, which is reduced to a predetermined pressure and then the low-pressure gas pipeline 3 is supplied to the consumer.The cold gas flow from the nozzle 6 to line 12 is fed into the cooling chamber 13, in which selection is made of the cold and into a low-pressure gas pipeline 3 for mixing with the gas received after the pressure regulator 8.

Changes in temperature and expenditure parameters in the pipe 5 hot and cold 6 gas flow vortex tube 4 are temperature control unit and consumable parameters 14 as follows. The heated and purified gas from piping hot stream 7 through line 16 through valve 17 flows into namebrand cavity diaphragm mechanism 15 of the control unit of the temperature and expenditure parameters 14. When this control valve 17 is pre-configured to output a pressure sufficient to impact on the membrane 19 diaphragm mechanism 15, and, consequently, the necessary movement of the rod 18 with a wedge-shaped flap 20 for the appropriate sizing of the cross-sectional area of jet entry 21 VI is Ecevit work distribution station, as part of the temperature changes and consumable parameters of gas necessary for the operation of proportions, and controlling the cross-sectional area of jet entry 21 is in automatic mode.

Thus, the use in gas distribution station of the temperature control unit and supplies the parameters established in the vortex tube, ensured the smooth changes of these parameters to the extent necessary, which provide stable operation of technological equipment and extend the functionality of the station. The use of the vortex tube as a separator liquid particles and impurities, by connecting it to the condensate tank, allowed to reduce the size of the station, saving material and labor costs.

1. Gas station containing the process unit with the gas pipelines of high and low pressure vortex tube with connections to the hot and cold gas streams, collecting tank condensate piping hot and cold gas flows, pressure regulator and refrigerator, characterized in that it is equipped with a temperature control unit and supplies the parameter of the one end of the rod is connected with a wedge-shaped flap, overlapping nozzle entering the vortex tube, and the other end connected to the membrane of the membrane mechanism, namebrand cavity through which an adjustable valve connected to the pipe hot gas stream.

2. Gas station p. 1, characterized in that the capacity of the condensate is connected through a stop valve to the inlet of the hot flow vortex tube.

 

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Gas filling station // 2244205

FIELD: pipeline systems.

SUBSTANCE: station has compressor, pipeline for supplying gas, device for purifying gas, and flow meter.

EFFECT: expanded function possibilities.

28 cl, 4 dwg

FIELD: methods or apparatus for filling pressure vessels.

SUBSTANCE: method comprises investigating gas in a gas analyzer, supplying gas to the unit of the input cocks, removing droplet moisture and admixtures from the gas in a low-pressure gas filter, supplying the purified gas alternatively to one of the drying contours, purifying gas in the outlet gas filter, supplying gas to the inlet of the control unit, investigating gas in the gas analyzer, purifying gas in the filter-separator and in the filter which is composed of detachable filtering members, supplying purified gas to the flow meter, and supplying low-pressure purified gas to the inlet of the unit of the additional pressurization. A part of gas is reduced and supplied to the operator box at a pressure of 0.02 kg/cm2. In the additional pressurizing unit, the gas is supplied to the space of the air-operated cylinder of the first stage through the inlet valve. The gas is compressed and discharged to the unit of the accumulation of low-pressure gas where it is cooled and supplied to the pressure line. The compressed gas with a pressure of 15-20 kg/cm2 is then compressed and cooled in the air-operated cylinder of the second stage and intermediate-pressure accumulation unit up to a pressure of 60-80 kg/cm2 and temperature lower than 40°C. A part of the gas is analyzed and supplied to a consumer at a pressure of 15-20 kg/cm2. The compressed gas from the intermediate-pressure accumulation unit is compressed and cooled in the air-operated cylinder of the third stage. The compressed gas is additionally purified in the gas filters.

EFFECT: enhanced quality of gas.

4 cl, 5 dwg

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