CN213236984U - Power source safety fast switching device of gas pipeline regulating valve - Google Patents
Power source safety fast switching device of gas pipeline regulating valve Download PDFInfo
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- CN213236984U CN213236984U CN202022189170.2U CN202022189170U CN213236984U CN 213236984 U CN213236984 U CN 213236984U CN 202022189170 U CN202022189170 U CN 202022189170U CN 213236984 U CN213236984 U CN 213236984U
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- valve
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- air supply
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Abstract
The utility model discloses a power supply safety fast switch over device of gas pipeline governing valve, including the air supply converter, set up inertia control flap, level detector respectively by last under to on the left side wall of air supply converter, set up system automatic valve and reserve automatic valve respectively by last under to on the right side wall of air supply converter, the bottom of air supply converter is setting up the air supply moisture discharge pipe of installing automatic drain valve, automatic drain valve through signal feedback line with level detector be linked together, setting up the control trachea of installing the admission control valve on the top surface of air supply converter, the pneumatic controller is being connected to the control trachea other end, and the pneumatic controller is installed on the natural gas governing valve case of natural gas trunk line. The device can ensure that the gas pipeline regulating valve can obtain a pressure gas source meeting the operation requirements under different operation environments and working conditions.
Description
Technical Field
The utility model relates to a power supply safety fast switch over device of gas pipeline governing valve.
Background
The gas supply system using natural gas as fuel gas has high explosion-proof grade requirement of the natural gas pipeline, and the drive of all control valves of the natural gas pipeline adopts compressed gas as power to realize drive control. The pressure air source provided by the air compressor of the production system has the following defects: 1. the production system has more air consumption points for compressed air, high failure rate, unstable air supply pressure and large fluctuation, and the natural gas adjusting pneumatic valve usually generates misoperation. 2. The production gas supply system contains more water, the gas circuit is influenced by more accumulated water in summer, the pipeline is easy to freeze in winter, and the pressure of a gas source cannot be guaranteed. 3. Under the working condition that the heating furnace is stopped producing and heat preserving, the air compressor of the production system is kept in a normally open state, so that electric energy waste is caused. 4. The air source control valve is manually controlled, so that certain potential safety hazards exist.
Disclosure of Invention
An object of the utility model is to provide a gas pipeline governing valve's power supply safety fast switch over device can ensure that gas pipeline governing valve homoenergetic under the operation environment and the operating mode of difference can obtain the pressurized air source that satisfies the operation requirement, guarantees gas pipeline governing valve's normal use.
The safe and fast power source switching device of the gas pipeline regulating valve comprises a gas source converter, wherein an inert control valve and a water level detector are arranged on the left side wall of the gas source converter from top to bottom respectively, a system automatic valve and a standby automatic valve are arranged on the right side wall of the gas source converter from top to bottom respectively, a gas source moisture discharge pipe provided with an automatic drain valve is arranged at the bottom end of the gas source converter, the automatic drain valve is communicated with the water level detector through a signal feedback line, a control gas pipe provided with an air inlet control valve is arranged on the top surface of the gas source converter, the other end of the control gas pipe is connected with a pneumatic regulator, and the pneumatic regulator is arranged on a valve core of the natural gas regulating valve of a natural gas.
The working conditions of the air source converter are divided into two types: the first method comprises the following steps: the ambient temperature is above zero degrees. Moisture in the compressed air is gradually accumulated at the bottom of the air source converter in long-time running, and when a certain amount of moisture is accumulated, a signal is sent out by water level monitoring to drive the automatic drain valve to be opened, so that condensed water of the air source converter is drained. When the condensed water is discharged, the water level monitor sends a signal to drive the automatic drain valve to close. When the pressure air source fluctuates greatly or the pressure is low, the pressure detection sends a signal to drive the safety air source valve to be opened, when the pressure in the air source converter is stable, the pressure detector sends a signal to drive the automatic valve of the system to be closed, the standby automatic valve is normally opened, and the signal is sent to the heating furnace control computer to display a fault point, facilitate manual intervention inspection and remove faults. And the second method comprises the following steps: the ambient temperature is below zero degrees. The freezing gas circuit that will block up of condensate water among the compressed air causes the gas circuit not smooth, when normal system air supply and reserve security air supply can't satisfy the operational requirement this moment, pressure detection signals drive opens the inertia control valve and regard inert gas as the pressure air supply, after the pressure of air supply converter reaches the requirement, close system automatic control valve and reserve automatic valve respectively, avoid the emergence of heating furnace gas failure accident, and on presenting heating furnace control computer with signal transmission, show the fault point, be convenient for manual intervention inspection, troubleshooting.
After field verification, the device can effectively realize quick non-impact conversion between air sources and ensure the normal operation of the whole air supply system. The device has the following advantages in the field verification process: 1) is simple and practical. 2) The operability is strong. 3) Can work continuously. 4) The air sources are switched without impact. 5) Has certain gas storage capacity to ensure the stability of the pressure gas source. 6) Greatly reducing the labor intensity of workers. 7) The gas utilization safety of the natural gas is ensured. 8) The safety factor of personnel in the production process is increased. 9) No secondary pollution. 10) The electric energy is saved, and the production cost is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic view of the structure of the present invention.
Detailed Description
A power source safe and rapid switching device of a gas pipeline regulating valve is shown in figure 1 and comprises a gas source converter 9, wherein an inert control valve 4 and a water level detector 5 are respectively arranged on the left side wall of the gas source converter 9 from top to bottom, and the inert control valve 4 is connected with an inert control gas pipe 3. The right side wall of the air source converter 9 is provided with a system automatic valve 13 and a standby automatic valve 10 from top to bottom, wherein the system automatic valve 13 is connected with a system pressure air pipe 12, and the standby automatic valve 10 is connected with a standby safety air pipe 11. The bottom end of the air source converter 9 is provided with an air source moisture discharge pipe 8 provided with an automatic water discharge valve 7, and the automatic water discharge valve 7 is communicated with the water level detector 5 through a signal feedback line 6. The top surface of the gas source converter 9 is provided with a control gas pipe provided with a gas inlet control valve 14, the other end of the control gas pipe is connected with a pneumatic regulator 1, and the pneumatic regulator 1 is arranged on a valve core of a natural gas regulating valve 2 of a natural gas main pipeline. The control air pipe is also connected with a pressure instrument 15.
Claims (1)
1. The utility model provides a power supply safety fast switching control equipment of gas pipeline governing valve, includes the air supply converter, characterized by: the left side wall of the gas source converter is provided with an inert control valve and a water level detector from top to bottom, the right side wall of the gas source converter is provided with a system automatic valve and a standby automatic valve from top to bottom, the bottom end of the gas source converter is provided with a gas source water discharge pipe provided with an automatic water discharge valve, the automatic water discharge valve is communicated with the water level detector through a signal feedback line, the top surface of the gas source converter is provided with a control gas pipe provided with an air inlet control valve, the other end of the control gas pipe is connected with a pneumatic regulator, and the pneumatic regulator is arranged on a valve core of a natural gas regulating valve of a natural gas main.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189170.2U CN213236984U (en) | 2020-09-29 | 2020-09-29 | Power source safety fast switching device of gas pipeline regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022189170.2U CN213236984U (en) | 2020-09-29 | 2020-09-29 | Power source safety fast switching device of gas pipeline regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213236984U true CN213236984U (en) | 2021-05-18 |
Family
ID=75877405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022189170.2U Expired - Fee Related CN213236984U (en) | 2020-09-29 | 2020-09-29 | Power source safety fast switching device of gas pipeline regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213236984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154470A (en) * | 2021-05-25 | 2021-07-23 | 江西省波力福工贸有限公司 | High-foot furnace end with double valves |
-
2020
- 2020-09-29 CN CN202022189170.2U patent/CN213236984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154470A (en) * | 2021-05-25 | 2021-07-23 | 江西省波力福工贸有限公司 | High-foot furnace end with double valves |
| CN113154470B (en) * | 2021-05-25 | 2023-01-20 | 江西省波力福工贸有限公司 | High-foot furnace end with double valves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 Termination date: 20210929 |