CN212110124U

CN212110124U - Power station gas replacement device capable of controlling flow online

Info

Publication number: CN212110124U
Application number: CN202021210693.4U
Authority: CN
Inventors: 宋晓辉; 刘圣冠; 李昭; 马晨原; 牛利涛; 王涛; 刘世雄; 辛志波; 谈博; 赵如宇
Original assignee: Xian Thermal Power Research Institute Co Ltd
Current assignee: Xian Thermal Power Research Institute Co Ltd
Priority date: 2020-06-26
Filing date: 2020-06-26
Publication date: 2020-12-08
Anticipated expiration: 2030-06-26

Abstract

The utility model discloses a gaseous replacement device of power station of online controllable flow, which comprises a housin, the upper end of casing is run through and is provided with intake pipe and test tube, and intake pipe and test tube and casing threaded connection, the upper end threaded connection of intake pipe has a coupling. Through a coupling and No. two couplings that set up, can dismantle gas replacement device, be convenient for remove gas replacement device, and a coupling can change the installation direction of pipeline, be favorable to installing under the circumstances of complicacy, adjustable valve through setting up, can control the gaseous flow of input, be favorable to controlling the process of gas replacement, through the drier that sets up, the moisture that the drier contains in can effectual getting rid of the input gas, and the drier setting is in the intake pipe, dismantle it through rotatory intake pipe, the change of the drier of being convenient for.

Description

Power station gas replacement device capable of controlling flow online

Technical Field

The utility model relates to a gaseous replacement device technical field, in particular to gaseous replacement device in power station of online controllable flow.

Background

A hydrogen system of a hydrogen-cooled generator is a special gas supply system required to be established for a steam turbine generator in a hydrogen cooling mode, the system needs to replace two gases, in the process of replacing the gases, the generator needs to use carbon dioxide as an intermediate medium, air is strictly prevented from being in direct contact with the hydrogen, and in order to complete gas replacement of a power station, an on-line flow-controllable power station gas replacement device is needed.

There are some problems in present power station gas replacement device, at first, current power station gas replacement device pipeline can not be dismantled, during the adjustment replacement device, needs the moving as a whole, and is heavier, and secondly, when gas replacement, the gaseous flow of input is difficult to control, is unfavorable for measuring the result of trading, and finally, the moisture that contains in the gas of input can produce moist phenomenon, has great harm to equipment.

Disclosure of Invention

In order to solve the problem that exists among the above-mentioned prior art, the utility model aims to provide a gaseous replacement device of power station of online controllable flow can dismantle gaseous replacement device, is convenient for remove gaseous replacement device, is favorable to installing under the complicated condition.

In order to realize the purpose, the utility model discloses a technical scheme is:

an online flow-controllable power station gas replacement device comprises a shell 1, wherein an air inlet pipe 2 and a detection pipe 9 are arranged at the upper end of the shell 1 in a penetrating mode, a first pipe joint 3 is connected to the upper end of the air inlet pipe 2 in a threaded mode, a third pipeline 16 is connected to one end, far away from the air inlet pipe 2, of the first pipe joint 3 in a threaded mode, a flowmeter 17 and a pressure gauge 18 are arranged at the upper end of the third pipeline 16 in a penetrating mode, an adjustable valve 15 is arranged at one end, far away from the shell 1, of the third pipeline 16, an air outlet end of the adjustable valve 15 is connected with the third pipeline 16 in a threaded mode, a first pipeline 4 is connected to the air inlet end of the adjustable valve 15 in a threaded mode, and a second pipe joint 5 is; one end of the second pipe joint 5, which is far away from the first pipe 4, is in threaded connection with a gas collecting pipe 6, and a pressure reducer 22 penetrates through the front end of the gas collecting pipe 6.

The air inlet pipe 2 and the detection pipe 9 are in threaded connection with the shell 1, and the flowmeter 17 is positioned on one side of the pressure gauge 18.

The lower end of the pressure reducer 22 is inserted with a hose 23, one end of the hose 23, which is far away from the pressure reducer 22, is inserted with an air stop valve 24, and the lower end of the air stop valve 24 is fixedly connected with a hydrogen cylinder 13.

The upper end fixed mounting of the inside of casing 1 has hydrogen collecting pipe 19, the lower extreme fixed mounting of the inside of casing 1 has carbon dioxide collecting pipe 20, exhaust hole 21 has been seted up to hydrogen collecting pipe 19 and carbon dioxide collecting pipe 20's surface.

The gas inlet pipe 2 is communicated with a hydrogen collecting pipe 19, and the carbon dioxide collecting pipe 20 is communicated with a second pipeline 7.

The exhaust holes 21 are provided with a plurality of groups at equal intervals.

The upper end threaded connection of detecting tube 9 has sampling tube 10, the one end fixedly connected with purity appearance 11 of casing 1 is kept away from of sampling tube 10.

The lower extreme of casing 1 runs through and installs No. two pipelines 7, No. two pipeline 7's one end threaded connection who keeps away from casing 1 has carbon dioxide heater 8.

The lower end of the shell 1 is fixedly provided with a base 14, the right side of the shell 1 is fixedly provided with an air outlet pipe 12, and the air inlet pipe 2 is filled with a drying agent 25.

The utility model has the advantages that:

through a coupling and No. two couplings that set up, can dismantle gaseous replacement device, be convenient for remove gaseous replacement device, and a coupling can change the installation direction of pipeline, be favorable to installing under the complicated condition, when using, with the one end and the intake pipe threaded connection of a coupling, the other end and No. three pipeline threaded connection, No. three pipeline and adjustable valve threaded connection, communicate pipeline and collecting pipe No. two couplings, pipeline and adjustable valve threaded connection, No. two couplings can be installed according to the pipeline thickness selection of pipeline and collecting pipe No. one, replacement device's commonality has been improved, and can dismantle gaseous replacement device through a coupling and No. two couplings, be convenient for remove gaseous replacement device.

Through the adjustable valve that sets up, can control the gaseous flow of input, be favorable to controlling the process of gas replacement, and can detect gaseous concentration through the purity appearance, reduce the error after the replacement is accomplished, when using, hydrogen in the pipeline passes through adjustable valve and gets into No. three pipelines, run through flowmeter and the manometer of installing on No. three pipelines through observing, adjust adjustable valve, be favorable to controlling the process of gas replacement, sampling tube and test tube sealing connection on the purity appearance, can measure gaseous concentration through the purity appearance, reduce the error after the replacement is accomplished.

Through the drier that sets up, the moisture that the drier contains in can effectual getting rid of the input gas, and the drier setting is in the inlet tube, dismantles it through rotatory intake pipe, the change of the drier of being convenient for, when using, the drier is placed in the inlet tube through using the ventilated membrane is fixed, and the hydrogen of input gets into the casing after getting rid of moisture through the drier.

Drawings

Fig. 1 is the overall structure schematic diagram of the utility model relates to a power station gas replacement device of online controllable flow.

Fig. 2 is a schematic view of a partial structure of the utility model of an online flow-controllable power station gas replacement device.

Fig. 3 is a schematic view of a shell section of the utility model of a power station gas replacement device with an online controllable flow.

Fig. 4 is an enlarged schematic view of a in fig. 1 of the utility model of an on-line flow-controllable power station gas replacement device.

In the figure: 1. a housing; 2. an air inlet pipe; 3. a first pipe joint; 4. a first pipeline; 5. a second pipe joint; 6. a gas collecting pipe; 7. a second pipeline; 8. a carbon dioxide heater; 9. a detection tube; 10. a sampling tube; 11. a purity meter; 12. an air outlet pipe; 13. a hydrogen gas cylinder; 14. a base; 15. an adjustable valve; 16. a third pipeline; 17. a flow meter; 18. a pressure gauge; 19. a hydrogen manifold; 20. a carbon dioxide manifold; 21. an exhaust hole; 22. a pressure reducer; 23. a hose; 24. an air stop valve; 25. a desiccant.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1-4, an on-line flow-controllable power station gas replacement device comprises a housing 1, an air inlet pipe 2 and a detection pipe 9 are arranged at the upper end of the housing 1 in a penetrating manner, the air inlet pipe 2 and the detection pipe 9 are in threaded connection with the housing 1, a first pipe joint 3 is in threaded connection with the upper end of the air inlet pipe 2, a third pipe 16 is in threaded connection with one end of the first pipe joint 3, which is far away from the air inlet pipe 2, a flow meter 17 and a pressure gauge 18 are arranged at the upper end of the third pipe 16 in a penetrating manner, the flow meter 17 is positioned at one side of the pressure gauge 18, an adjustable valve 15 is arranged at one end of the third pipe 16, which is far away from the housing 1, the air outlet end of the adjustable valve 15 is in threaded connection with the third pipe 16, a first pipe 4 is in threaded connection with the air inlet end of the adjustable valve 15, a second, can dismantle gas replacement device, be convenient for remove gas replacement device, No. 3 pipe connections can change the installation direction of pipeline moreover, are favorable to installing under the complicated condition.

No. two coupling 5 keep away from one end threaded connection of pipeline 4 has gas collecting pipe 6, the front end of gas collecting pipe 6 runs through and is provided with pressure reducer 22, the lower extreme of pressure reducer 22 is pegged graft and is had hose 23, hose 23's the one end of keeping away from pressure reducer 22 is pegged graft and is had air stop valve 24, air stop valve 24's lower extreme fixedly connected with hydrogen cylinder 13, No. two coupling 5 can select suitable model installation according to pipeline thickness of pipeline 4 and gas collecting pipe 6, the commonality of replacement device has been improved.

The upper end fixed mounting of the inside of casing 1 has hydrogen collecting pipe 19, and the lower extreme fixed mounting of the inside of casing 1 has carbon dioxide collecting pipe 20, and exhaust hole 21 has been seted up to hydrogen collecting pipe 19 and carbon dioxide collecting pipe 20's surface.

The lower extreme of casing 1 runs through and installs No. two pipelines 7, and No. two pipeline 7's one end threaded connection who keeps away from casing 1 has carbon dioxide heater 8.

The first pipe joint 3 and the second pipe joint 5 can be used for disassembling the gas replacement device, the gas replacement device is convenient to move, and the first pipe joint 3 can change the installation direction of the pipeline, is beneficial to installation under complex conditions, when in use, one end of the first pipe joint 3 is in threaded connection with the air inlet pipe 2, the other end is in threaded connection with the third pipeline 16, the third pipeline 16 is in threaded connection with the adjustable valve 15, the first pipeline 4 and the gas collecting pipe 6 are communicated through the second pipe joint 5, the first pipeline 4 is in threaded connection with the adjustable valve 15, the second pipe joint 5 can be installed in a proper model according to the thickness of the first pipeline 4 and the gas collecting pipe 6, the universality of the replacement device is improved, and the gas replacement device can be detached through the first pipe joint 3 and the second pipe joint 5, so that the gas replacement device is convenient to move.

Example 2

As shown in fig. 1-4, an on-line flow-controllable power station gas replacement device comprises a housing 1, an air inlet pipe 2 and a detection pipe 9 are arranged at the upper end of the housing 1 in a penetrating manner, the air inlet pipe 2 and the detection pipe 9 are in threaded connection with the housing 1, a first pipe joint 3 is in threaded connection with the upper end of the air inlet pipe 2, a third pipe 16 is in threaded connection with one end of the first pipe joint 3, which is far away from the air inlet pipe 2, a flow meter 17 and a pressure gauge 18 are arranged at the upper end of the third pipe 16 in a penetrating manner, the flow meter 17 is positioned at one side of the pressure gauge 18, an adjustable valve 15 is arranged at one end of the third pipe 16, which is far away from the housing 1, the air outlet end of the adjustable valve 15 is in threaded connection with the third pipe 16, a first pipe 4 is in threaded connection with the air inlet end of the, the flow of the input gas can be controlled, which is beneficial to controlling the gas replacement process.

No. two coupling 5 keep away from one end threaded connection of pipeline 4 has gas collecting pipe 6, and the front end of gas collecting pipe 6 runs through and is provided with pressure reducer 22, and the lower extreme of pressure reducer 22 is pegged graft and is had hose 23, and hose 23's the one end of keeping away from pressure reducer 22 is pegged graft and is had air valve 24, air valve 24's lower extreme fixedly connected with hydrogen cylinder 13.

The upper end threaded connection of detecting tube 9 has sampling tube 10, and the one end fixedly connected with purity appearance 11 of casing 1 of keeping away from of sampling tube 10 can detect gaseous concentration through purity appearance 11, reduces the error after the replacement is accomplished.

Through the adjustable valve 15 that sets up, can control the gaseous flow of input, be favorable to controlling the process of gas replacement, and can detect gaseous concentration through purity appearance 11, reduce the error after the replacement is accomplished, when using, hydrogen in pipeline 4 gets into No. three pipelines 16 through adjustable valve 15, run through flowmeter 17 and the manometer 18 of installing on No. three pipelines 16 through observing, adjust adjustable valve 15, be favorable to controlling the process of gas replacement, sampling tube 10 and the test tube 9 sealing connection on the purity appearance 11, can measure gaseous concentration through purity appearance 11, reduce the error after the replacement is accomplished.

Example 3

As shown in fig. 1-4, a power station gas replacement device with an online controllable flow rate comprises a shell 1, an air inlet pipe 2 and a detection pipe 9 are arranged at the upper end of the shell 1 in a penetrating manner, the air inlet pipe 2 and the detection pipe 9 are in threaded connection with the shell 1, the upper end of the air inlet pipe 2 is in threaded connection with a pipe joint 3, one end of the pipe joint 3, which is far away from the air inlet pipe 2, is in threaded connection with a third pipeline 16, the upper end of the third pipeline 16 is provided with a flow meter 17 and a pressure meter 18 in a penetrating manner, the flow meter 17 is located on one side of the pressure meter 18, one end, which is far away from the shell 1, of the third pipeline 16 is provided with an adjustable valve 15, the air outlet end of the adjustable valve 15 is in threaded connection with the third pipeline 16, the air inlet end of the adjustable valve.

The lower extreme fixed mounting of casing 1 has base 14, and the right side fixed mounting of casing 1 has outlet duct 12, and the inside packing of intake pipe 2 has drier 25, and the moisture that contains in the input gas can effectually be got rid of to drier 25, and drier 25 sets up in intake pipe 2, dismantles it through rotatory intake pipe 2, the change of the drier 25 of being convenient for.

Through the drier 25 that sets up, the moisture that contains in drier 25 can effectual getting rid of the input gas, and drier 25 sets up in intake pipe 2, dismantles it through rotatory intake pipe 2, the change of the drier 25 of being convenient for, and when using, the drier 25 is fixed through using the ventilated membrane to be placed in intake pipe 2, and the hydrogen of input gets into casing 1 after getting rid of moisture through drier 25.

It should be noted that the utility model relates to an online flow-controllable power station gas replacement device, when gas is replaced, firstly, a plurality of pressure reducers 22 are installed on the gas collecting pipe 6, a plurality of groups of hydrogen cylinders 13 can be used simultaneously, the air stop valve 24 on the hydrogen cylinder 13 is inserted with the hose 23, the other end of the hose 23 is inserted with the pressure reducers 22, two ends of the hose 23 are fixed by iron wires, one end of a pipe joint 3 is connected with the gas inlet pipe 2 in a threaded manner, the other end is connected with a third pipeline 16 in a threaded manner, the third pipeline 16 is connected with the adjustable valve 15 in a threaded manner, the first pipeline 4 and the gas collecting pipe 6 are communicated through a second pipe joint 5, the first pipeline 4 and the adjustable valve 15 are connected in a threaded manner, the second pipe joint 5 can be installed according to the proper model of the thickness of the first pipeline 4 and the gas collecting pipe 6, the universality of the replacement device is improved, and the gas replacement device can be disassembled through the first pipe joint, the gas replacement device is convenient to move, secondly, carbon dioxide heated by the carbon dioxide heater 8 enters the carbon dioxide collecting pipe 20 in the shell 1 through the second pipeline 7, the carbon dioxide enters the shell 1 through the exhaust hole 21 formed in the carbon dioxide collecting pipe 20, air in the shell 1 is replaced, the air is discharged through the air outlet pipe 12, finally, the air stop valve 24 is opened, hydrogen enters the gas collecting pipe 6 through the pressure reducer 22, the air pressure is reduced through rotating a rotating wheel on the pressure reducer 22, hydrogen in a plurality of groups of hydrogen bottles 13 enters the first pipeline 4 through the gas collecting pipe 6, hydrogen in the first pipeline 4 enters the third pipeline 16 through the adjustable valve 15, the adjustable valve 15 is adjusted through observing a flowmeter 17 and a pressure gauge 18 which are arranged on the third pipeline 16 in a penetrating mode, the process of gas replacement is favorably controlled, and after moisture is removed through the drying agent 25 in the gas inlet pipe 2, the carbon dioxide in the shell 1 is replaced, the carbon dioxide is discharged through the gas outlet pipe 12, the replacement is completed, the sampling pipe 10 on the purity meter 11 is hermetically connected with the detection pipe 9 in the replacement process, the concentration of gas can be measured through the purity meter 11, and the error after the replacement is completed is reduced.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An on-line flow-controllable power station gas replacement device comprises a shell (1) and is characterized in that, the upper end of the shell (1) is provided with an air inlet pipe (2) and a detection pipe (9) in a penetrating way, the upper end of the air inlet pipe (2) is in threaded connection with a first pipe joint (3), one end of the first pipe joint (3) far away from the air inlet pipe (2) is in threaded connection with a third pipeline (16), the upper end of the third pipeline (16) is provided with a flowmeter (17) and a pressure gauge (18) in a penetrating way, an adjustable valve (15) is arranged at one end of the third pipeline (16) far away from the shell (1), the air outlet end of the adjustable valve (15) is in threaded connection with a third pipeline (16), the air inlet end of the adjustable valve (15) is connected with a first pipeline (4) through threads, one end of the first pipeline (4) far away from the adjustable valve (15) is connected with a second pipe joint (5) in a threaded manner; one end of the second pipe joint (5) far away from the first pipeline (4) is in threaded connection with a gas collecting pipe (6), and a pressure reducer (22) penetrates through the front end of the gas collecting pipe (6).

2. An on-line controllable flow plant gas displacement device according to claim 1, characterized in that the inlet pipe (2) and the sensing pipe (9) are screwed to the housing (1) and the flow meter (17) is located on the side of the pressure gauge (18).

3. An on-line flow-controllable power station gas replacement device according to claim 1, characterized in that a hose (23) is inserted into the lower end of the pressure reducer (22), an air stop valve (24) is inserted into one end of the hose (23) far away from the pressure reducer (22), and a hydrogen cylinder (13) is fixedly connected to the lower end of the air stop valve (24).

4. The on-line flow-controllable power station gas replacement device according to claim 1, characterized in that a hydrogen collecting pipe (19) is fixedly installed at the upper end of the inside of the casing (1), a carbon dioxide collecting pipe (20) is fixedly installed at the lower end of the inside of the casing (1), and exhaust holes (21) are formed in the outer surfaces of the hydrogen collecting pipe (19) and the carbon dioxide collecting pipe (20).

5. An on-line controllable flow plant gas displacement device according to claim 4, characterized in that said inlet pipe (2) is connected to a hydrogen manifold (19) and said carbon dioxide manifold (20) is connected to the second pipe (7).

6. An on-line flow-controllable power station gas displacement apparatus according to claim 4, characterized in that the exhaust holes (21) are arranged in groups at equal intervals.

7. An on-line flow-controllable power station gas displacement device according to claim 1, characterized in that the upper end of the detection tube (9) is connected with a sampling tube (10) in a threaded manner, and the end of the sampling tube (10) far away from the shell (1) is fixedly connected with a purity meter (11).

8. An on-line flow-controllable power station gas replacement device according to claim 1, characterized in that a second pipeline (7) is installed at the lower end of the housing (1) in a penetrating manner, and a carbon dioxide heater (8) is connected to one end of the second pipeline (7) far away from the housing (1) in a threaded manner.

9. An on-line flow-controllable power station gas replacement device according to claim 1, characterized in that a base (14) is fixedly installed at the lower end of the shell (1), an outlet pipe (12) is fixedly installed at the right side of the shell (1), and a drying agent (25) is filled in the inlet pipe (2).