CN210457454U - Control system of tertiary oil gas recovery equipment of filling station - Google Patents
Control system of tertiary oil gas recovery equipment of filling station Download PDFInfo
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- CN210457454U CN210457454U CN201920563594.5U CN201920563594U CN210457454U CN 210457454 U CN210457454 U CN 210457454U CN 201920563594 U CN201920563594 U CN 201920563594U CN 210457454 U CN210457454 U CN 210457454U
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Abstract
The utility model discloses a control system of a gas station tertiary oil gas recovery device, which comprises a first controller, a second controller, a third controller and an underground oil tank, the top of the underground oil tank is connected with a pressure sensor which is in signal connection with a first controller, the underground oil tank is connected with a normal temperature liquid buffer tank and a low temperature liquid buffer tank through a gas inlet pipe, the gas inlet pipe is connected with a centrifugal fan and a gas inlet valve, the top of the normal temperature liquid buffer tank is connected with a normal temperature refrigerating device, the normal temperature liquid buffer tank is also connected with a first temperature sensor, the top of the low temperature liquid buffer tank is connected with a low temperature refrigerating device, the low-temperature liquid buffer tank is also connected with a liquid level sensor and a second temperature sensor and is connected with the underground oil tank through a liquid return pipe. The utility model discloses can realize the automatic control of filling station's cubic vapor recovery system equipment, do not need workman field operation to supervise.
Description
Technical Field
The utility model relates to an automatic technical field of industry control especially relates to a filling station's cubic vapor recovery system equipment's control system.
Background
The oil gas recovery device of the present gas station generally comprises an underground oil tank, a normal temperature liquid buffer tank, a normal temperature refrigerating device, a low temperature liquid buffer tank, a low temperature refrigerating device, a gas inlet pipe, a centrifugal fan, a gas inlet valve, a liquid backflow pipeline and a liquid backflow valve. The process mode requires the staff to be operated and supervised on site, and if the staff leaves, the smooth operation of the tertiary oil gas recovery of the gas station cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a three times oil vapor recovery system's of filling station automatic control can be realized to the provision, does not need the control system of the three times oil vapor recovery system of filling station of workman site operation supervision.
In order to solve the technical problem, the utility model provides a filling station's cubic vapor recovery system's control system, including a controller, No. two controllers, No. three controllers, pressure sensor, underground oil tank, its characterized in that: the underground oil tank is connected with a pressure sensor through a gas inlet pipe, the pressure sensor is in signal connection with a controller, the underground oil tank is connected with a normal-temperature liquid buffer tank and a low-temperature liquid buffer tank through a gas inlet pipe, the gas inlet pipe is connected with a centrifugal fan and a gas inlet valve, the centrifugal fan and the gas inlet valve are connected with a controller, the top of the normal-temperature liquid buffer tank is connected with a normal-temperature refrigerating device, the bottom of the normal-temperature liquid buffer tank is connected with a sewage pool, the normal-temperature liquid buffer tank is also connected with a temperature sensor, the temperature sensor and the normal-temperature refrigerating device are respectively connected with a controller II, the top of the low-temperature liquid buffer tank is connected with a low-temperature refrigerating device, the low-temperature liquid buffer tank is also connected with a liquid level sensor and a temperature sensor II, and the liquid level sensor, the temperature sensor II and the low, the low-temperature liquid buffer tank is connected with the underground oil tank through a liquid return pipe, the liquid return pipe is connected with a liquid return valve, and the liquid return valve is connected with a third controller.
Further, the gas inlet valve and the liquid return valve are both electrically operated valves.
Furthermore, the first controller, the second controller and the third controller are all PLC control modules and are used for realizing remote control.
Further, the controller I can control the centrifugal fan and the gas inlet valve to be opened and closed.
Furthermore, the second controller can control the start and stop of the normal-temperature refrigerating device.
Furthermore, the third controller can control the start and stop of the low-temperature refrigerating device.
Further, the third controller can control the opening and closing of the liquid return valve.
Compared with the prior art, the beneficial effects of the utility model are that: in the third oil gas recovery process of the gas station, the pressure of the underground oil tank rises due to the generation of oil gas, a pressure signal is transmitted to the first controller, the first controller controls the centrifugal fan and the gas inlet valve to be opened, the oil gas enters the normal-temperature liquid buffer tank through the gas inlet pipe, the temperature in the buffer tank rises, a temperature signal is transmitted to the second controller, the second controller controls the normal-temperature refrigerating device to be started, the water vapor in the oil gas is cooled, liquefied and recovered into the sewage tank through the normal-temperature refrigerating device, the rest of the oil gas enters the low-temperature liquid buffer tank, the temperature in the low-temperature liquid buffer tank rises, the temperature signal is transmitted to the third controller, the third controller controls the low-temperature refrigerating device to be started, the oil gas is cooled and liquefied through the low-temperature refrigerating device, when the liquid level in the buffer tank reaches a certain height, the liquid level signal is transmitted to the third controller, the third, the liquefied liquid returns to the underground oil tank through the liquid return pipe, so that automatic control of the tertiary oil gas recovery device of the gas station is realized.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numbers in the figures:
1-controller 2-controller 3-controller
4-pressure sensor 5-underground oil tank 6-gas inlet pipe
7-centrifugal fan 8-gas inlet valve 9-normal temperature liquid buffer tank
10-normal temperature refrigerating plant 11-temperature sensor 12-low temperature liquid buffer tank
13-low-temperature refrigerating device 14-liquid level sensor 15-temperature sensor II
16-liquid return pipe 17-liquid return valve 18-sump.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be defined more clearly and clearly.
Referring to fig. 1, a control system of a tertiary oil gas recovery device of a gas station comprises a first controller 1, a second controller 2, a third controller 3, a pressure sensor 4 and an underground oil tank 5, wherein the top of the underground oil tank 5 is connected with the pressure sensor 4, the pressure sensor 4 is connected with the first controller 1, the underground oil tank 5 is connected with a normal temperature liquid buffer tank 9 and a low temperature liquid buffer tank 12 through a gas inlet pipe 6, the gas inlet pipe 5 is connected with a centrifugal fan 7 and a gas inlet valve 8, the centrifugal fan 7 and the gas inlet valve 8 are connected with the first controller 1, the top of the normal temperature liquid buffer tank 9 is connected with a normal temperature refrigerating device 10, the bottom of the normal temperature liquid buffer tank 9 is connected with a sewage tank 18, the normal temperature liquid buffer tank 9 is also connected with a first temperature sensor 11, the first temperature sensor 11 and the normal temperature refrigerating device 10 are respectively connected with the second controller 2, the top of the low-temperature liquid buffer tank 12 is connected with a low-temperature refrigerating device 13, the low-temperature refrigerating device 13 is connected with a controller 3, the low-temperature liquid buffer tank 12 is further connected with a liquid level sensor 14 and a temperature sensor 15, the liquid level sensor 14 and the temperature sensor 15 are connected with the controller 3, the low-temperature liquid buffer tank 12 is connected with an underground oil tank 5 through a liquid return pipe 16, the liquid return pipe 16 is connected with a liquid return valve 17, the liquid return valve 17 is connected with the controller 3, the gas inlet valve 8 is an electric valve with the liquid return valve 17, and the controller 1, the controller 2 and the controller 3 are PLC control modules.
The utility model discloses a theory of operation: in the third oil gas recovery process of the gas station, the pressure of the underground oil tank 5 rises due to the generation of oil gas, a pressure signal is transmitted to the first controller 1 through the pressure sensor 4, the first controller 1 controls the centrifugal fan 7 and the gas inlet valve 8 to be opened, the oil gas enters the normal temperature liquid buffer tank 9 through the gas inlet pipe 6, the temperature in the buffer tank rises, a temperature signal is transmitted to the second controller 2 through the first temperature sensor 11, the second controller 2 controls the normal temperature refrigerating device 10 to be started, the water vapor in the oil gas is cooled, liquefied and recovered to the sewage tank 18 through the normal temperature refrigerating device 10, the rest oil gas enters the low temperature liquid buffer tank 12, the temperature in the low temperature liquid buffer tank 12 rises, a temperature signal is transmitted to the third controller 3 through the second temperature sensor 15, the third controller 3 controls the low temperature refrigerating device 13 to be started, the oil gas is cooled and liquefied through the low temperature refrigerating device 13, when the liquid level in the buffer tank reaches a certain height, a liquid level signal is transmitted to the third controller 3 through the liquid level sensor 14, the third controller 3 controls the liquid return valve 17 to be opened, and the liquefied liquid returns to the underground oil tank 5 through the liquid return pipe 16, so that automatic control of the tertiary oil gas recovery equipment of the gas station is realized.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.
Claims (3)
1. The utility model provides a filling station cubic vapor recovery system equipment's control system, includes controller (1), No. two controller (2), No. three controller (3), pressure sensor (4), underground oil tank (5), its characterized in that: the underground oil tank (5) top is connected with a pressure sensor (4), the pressure sensor (4) is connected with a controller (1), the underground oil tank (5) is connected with a normal temperature liquid buffer tank (9) and a low temperature liquid buffer tank (12) through a gas inlet pipe (6), the gas inlet pipe (6) is connected with a centrifugal fan (7) and a gas inlet valve (8), the centrifugal fan (7) and the gas inlet valve (8) are connected with the controller (1), the top of the normal temperature liquid buffer tank (9) is connected with a normal temperature refrigerating device (10), the bottom of the normal temperature liquid buffer tank is connected with a sewage pool (18), the normal temperature liquid buffer tank (9) is also connected with a temperature sensor (11), the temperature sensor (11) and the normal temperature refrigerating device (10) are respectively connected with a controller (2), the top of the low temperature liquid buffer tank (12) is connected with a low temperature refrigerating device (13), the low-temperature liquid buffer tank is characterized in that a liquid level sensor (14) and a second temperature sensor (15) are further connected to the low-temperature liquid buffer tank (12), the second temperature sensor (15), the liquid level sensor (14), a low-temperature refrigerating device (13) and a third controller are connected (3), the low-temperature liquid buffer tank (12) is connected with the underground oil tank (5) through a liquid return pipe (16), a liquid return valve (17) is connected to the liquid return pipe (16), and the liquid return valve (17) is connected with the third controller (3).
2. The control system of a tertiary oil and gas recovery device of a gasoline station as claimed in claim 1, wherein: the gas inlet valve (8) and the liquid return valve (17) are electrically operated valves.
3. The control system of a tertiary oil and gas recovery device of a gasoline station as claimed in claim 1, wherein: the first controller (1), the second controller (2) and the third controller (3) are all PLC control modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920563594.5U CN210457454U (en) | 2019-04-24 | 2019-04-24 | Control system of tertiary oil gas recovery equipment of filling station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920563594.5U CN210457454U (en) | 2019-04-24 | 2019-04-24 | Control system of tertiary oil gas recovery equipment of filling station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210457454U true CN210457454U (en) | 2020-05-05 |
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ID=70429969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920563594.5U Active CN210457454U (en) | 2019-04-24 | 2019-04-24 | Control system of tertiary oil gas recovery equipment of filling station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210457454U (en) |
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2019
- 2019-04-24 CN CN201920563594.5U patent/CN210457454U/en active Active
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