RU69194U1 - AUTOMATIC GAS ODORIZER - Google Patents

Abstract

An automatic gas odorizer is designed to supply an odorant to a stream of natural gas in order to give it an odor and can be used at gas distribution stations. The odorizer is equipped with safety (16) and three controllable (12, 13, 14) valves, the first (12) of which is installed on the first gas pipeline (5) connecting the storage capacity of the odorant (6) with a gas reducer (4), and the second (13 ) - on the second gas pipeline (9) connecting the gas cavity of the supply tank (8) with the main gas pipeline (1), the third (14) - on the hydraulic pipe (7) connecting the storage capacity of the odorant (6) with the supply tank (8), and the outputs of the first (12) and second (13) controlled valves are connected by a third gas pipeline (15), on which the safety valve is located tion valve (16). This allows, without stopping the odorization process, to periodically replenish the supply capacity (8), which increases the reliability of the operation of the automatic gas odorizer. 1 ill.

Description

The utility model relates to pipeline transport and can be used in the gas industry at gas distribution stations to supply odorant to a gas stream in order to give it a smell.

Known automatic gas odorizer (see US Pat. Utility Model No. 13201, IPC F17D 3/12, B01F 3/04, 2005), comprising a gas main with a reduction unit, a gas reducer, an odorant storage tank, a flow meter, a metering meter device and control system. A disadvantage of the known odorizer is the need to stop the odorization process when refueling the supply tank, which reduces the reliability of operation.

The utility model is based on the task of increasing the reliability of the operation of an automatic gas odorizer by providing refueling of the supply tank without stopping the odorization process.

The problem is solved due to the fact that the automatic gas odorizer containing a reduction unit on the main gas pipeline, a gas reducer connected by the first gas pipeline with an odorant storage tank, connected by a hydraulic pipeline to a flow tank, the gas cavity of which is connected by a second gas pipeline to the main gas pipeline after the reduction node, a flow meter , the dosing device and control system, according to the technical solution, is equipped with a safety valve and three controlled valves, the first of which installed on the hydraulic pipe, the second - on the first gas pipeline, the third - on the second gas pipeline, and the exits of the second and third controlled valves are connected by a third gas pipeline, on which the safety valve is located.

The odorizer is supplied with safety and three controlled valves, the first of which is installed on the hydraulic pipeline, the second on the first gas pipeline, the third on the second gas pipeline, the outputs of the second and third controlled valves are connected by the third gas pipeline on which the safety valve is located, it allows periodically replenishing without stopping the odorization process supply capacity, which increases the reliability of the automatic gas odorizer.

In FIG. The gas-hydraulic diagram of the proposed automatic gas odorizer is presented.

The automatic gas odorizer contains a gas main 1 with metering units 2 and reduction 3 installed on it, a gas reducer 4 connected by a first gas pipeline 5 to an odorant storage tank 6, which is connected by a hydraulic conduit 7 to a flow tank 8, the gas cavity of which is connected by a second gas pipeline 9 to the main the gas pipeline 1 after the reduction unit 3 in front of the metering unit 2. The flow tank 8 is also connected to a flow meter 10, which is connected through the dispenser 11 to the main gas pipeline 1. On the gas pipeline 5 is installed the first controlled valve 12, on the gas pipeline 9 - the second controlled valve 13, on the hydraulic pipe 7 - the third controlled valve 14. The outputs of the valves 12 and 13 are connected by the third gas pipeline 15, on which the safety valve 16. The gas cavity of the flow meter 10 is communicated through the electromagnetic valve 17 with main gas pipeline 1 after the reduction unit 3.

Automatic gas odorizer works as follows.

Gas from the main gas pipeline 1 is taken to the reduction unit 3 and fed to the inlet of the gas reducer 4, then through the gas pipeline 5 the gas enters the flow meter 10 and into the flow tank 8, the pressures in which in a static state are equalized. At the command of the control system (not shown in Fig.), An odorant through the dispenser 11 is injected into the main gas pipeline 1. When the level decreases

at the command of the control system, the solenoid valve 17 opens, and under the influence of excessive pressure in the flow tank 8, the odorant through the hydraulic pipe 7 enters the flowmeter 10, and gas from the gas cavity of the flowmeter 10 through the electromagnetic valve 17 returns to the main gas pipeline 1 after reduction unit 3 to the metering unit 2. As soon as the odorant level in the flow meter 10 rises to the maximum, the electromagnetic valve 17 closes. The pressure in the gas cavity of the flow meter 10 becomes equal to the pressure in the flow tank 8, and replenishment of the flow meter 10 by an odorant is stopped. Similarly, the supply tank 8 is replenished from the storage tank of the odorant 6. When the odorant level in the supply tank 8 is reduced to a minimum, the control system sends a signal to open the valve 13, thereby relieving pressure in the supply tank 8 due to gas bypass from its cavity to the main gas pipeline 1 after the reduction unit 3. At the same time, the control system sends a signal to open the valve 12, the working gas, the pressure of which is determined by the setting of the valve 16, enters the storage tank of the odorant 6. After p reducing the pressure in the supply tank 8 to a value less than the pressure in the storage tank of the odorant 6, the control system gives a signal to open the valve 14, which ensures filling of the supply tank 8 with an odorant. When the odorant reaches the maximum level, the control system gives a signal to close the valves 12, 13 and 14, as a result of which the filling stops.

Claims (1)

An automatic gas odorizer comprising a reduction unit on a main gas pipeline, a gas reducer connected by a first gas pipeline to an odorant storage tank connected by a hydraulic pipe to a supply tank, a gas cavity connected by a second gas pipeline to a gas main after the reduction unit, a flow meter, a metering device and a control system the fact that it is equipped with a safety valve and three controlled valves, the first of which is installed on the hydraulic pipe, the second - on the first gas water, the third - on the second gas line, the outputs of the second and third controllable valves connected to the third gas line, on which the safety valve.