CN213866072U - Tertiary oil gas recovery unit - Google Patents

Tertiary oil gas recovery unit Download PDF

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Publication number
CN213866072U
CN213866072U CN202021895115.9U CN202021895115U CN213866072U CN 213866072 U CN213866072 U CN 213866072U CN 202021895115 U CN202021895115 U CN 202021895115U CN 213866072 U CN213866072 U CN 213866072U
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China
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gas recovery
chip microcomputer
oil gas
tank
touch screen
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CN202021895115.9U
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Chinese (zh)
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杨万森
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Baoding Xinhua Petrochemical Equipment Manufacturing Co ltd
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Baoding Xinhua Petrochemical Equipment Manufacturing Co ltd
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Abstract

A tertiary oil gas recovery device for a gas station. And an adsorption type oil gas recovery system and a touch screen single-chip microcomputer control system are adopted to form a tertiary oil gas recovery device. A touch screen is used as a man-machine input port, and a single chip microcomputer is used as a main control system. The single chip microcomputer collects concentration, pressure and flow signals, and the operation of the tertiary oil gas recovery device is controlled according to decision rules through operation.

Description

Tertiary oil gas recovery unit
The technical field is as follows:
the invention relates to an oil gas recovery device, in particular to a tertiary oil gas recovery device for a gas station.
Background art:
in order to reduce oil gas volatilization in the oiling process of the existing gas station, a secondary oil gas recovery device is arranged on an oiling gun. The principle is that in the process of refueling, gas exhausted from the oil tank is delivered into the oil tank through a pipeline by a vacuum pump at a refueling nozzle. To prevent the oil gas from escaping, the air pumping quantity is larger than the oil filling quantity. The oil tank pressure is increased due to the fact that the oil tank is in a small amount and the oil tank is in a large amount, when the oil tank pressure is larger than a safety value, the breather valve is used for exhausting air and reducing pressure, and oil gas is released into the atmosphere along with the exhaust. To solve the problem, a condenser is generally used to cool the oil gas, so that the oil in the oil gas is condensed into liquid and returns to the oil tank. Most of the oil can be recovered by using the condenser, but the oil content in the discharged gas is still high. In addition, the condenser has a large volume, low efficiency and high operation cost.
The invention content is as follows:
in order to solve the defects in the prior art, the invention adopts the technical scheme that: and the adsorption type oil gas recovery system and the touch screen single-chip microcomputer control system form a tertiary oil gas recovery device. The adsorption type oil gas recovery system consists of an adsorption tank, a recovery tank, a vacuum pump and an electromagnetic valve. The touch screen single chip microcomputer control system consists of a touch screen, a single chip microcomputer and concentration, pressure and flow sensors. The touch screen is used as a human-computer input port, the single chip microcomputer is used as a main control system, the single chip microcomputer collects concentration, pressure and flow signals, and the operation of the tertiary oil-gas recovery device is controlled according to decision rules after operation.
Description of the drawings:
FIG. 1 is a schematic view of a tertiary oil and gas recovery system of the present invention.
Fig. 2 is a schematic diagram of a control system of the tertiary oil and gas recovery device of the invention.
In fig. 1: 1. oil tank exhaust pipe, 2, flow sensor, 3, throttle valve, 4, solenoid valves A, 5, pressure sensor, 6, adsorption tanks A, 7, recovery tank, 8, adsorption tanks B, 9, solenoid valves B, 10, evacuation pipe, 11, concentration sensor, 12, vacuum pump, 13, check valve, 14, oil return pipe.
In fig. 2: 2. the device comprises a flow sensor, 4, electromagnetic valves A and 5, a pressure sensor, 9, electromagnetic valves B and 11, a concentration sensor, 12, a vacuum pump, 15, a communication antenna, 16, a touch screen, 17, a communication cable, 18, a single chip microcomputer system, 19 and a power cable.
The specific implementation mode is as follows:
the embodiments of the invention will be further explained with reference to the drawings in which:
FIG. 1 is a schematic view of a tertiary oil and gas recovery system of the present invention. The adsorption type oil gas recovery system consists of an adsorption tank A (6), an adsorption tank B (8), a vacuum pump (12), a recovery tank (7) and a control element. The connection of the adsorption type oil gas recovery system is as follows: the oil tank exhaust pipe (1) is connected in series with a flow sensor (2), a throttle valve (3), an electromagnetic valve A (4) and a pressure sensor (5). The rear of the pressure sensor (5) is connected with two paths: one path of the air inlet pipe is connected to an adsorption tank A (6), an adsorption tank B (8), an electromagnetic valve B (9), a concentration sensor (11) and an emptying pipe (10); the other path behind the pressure sensor (5) is connected with a one-way valve (13), a vacuum pump (12), a recovery tank (7) and an oil return pipe (14). During adsorption, the electromagnetic valve A (4) and the electromagnetic valve B (9) are opened, oil gas entering from the oil tank exhaust pipe (1) flows through the adsorption tank A (6) and the adsorption tank B (8), oil in the oil gas is absorbed by an adsorption material in the adsorption tank, and air is discharged through the emptying pipe (10). The adsorbing material in the adsorption tank can be saturated after working for a period of time, and oil can be adsorbed again only by vacuum desorption. During desorption, the electromagnetic valve A (4) and the electromagnetic valve B (9) are closed, the vacuum pump (12) is used for generating vacuum of the adsorption tank A (6) and the adsorption tank B (8), oil liquid of the adsorption material in the adsorption tank is sucked out and discharged to the recovery tank (7), and the oil liquid returns to the oil tank through the oil return pipe (14). The recovery system is repeatedly switched between two working states of adsorption and desorption, the electromagnetic valve A (4) and the electromagnetic valve B (9) are in an open state during adsorption, the electromagnetic valve A (4) and the electromagnetic valve B (9) are in a closed state during desorption, and the operations are realized through the touch screen single chip microcomputer control system.
Fig. 2 is a schematic view of a tertiary oil and gas recovery device control system of the present invention. The touch screen single chip microcomputer control system consists of a touch screen, a single chip microcomputer system, a digital acquisition element and a control element. The data acquisition element consists of a pressure sensor (5), a flow sensor (2) and a concentration sensor (11). The control element consists of an electromagnetic valve A (4), an electromagnetic valve B (9) and a vacuum pump (12). The touch screen (16) is used as a man-machine input port and is placed in the control room, the single chip microcomputer system, the digital acquisition element and the control element are installed on the site, and the single chip microcomputer system, the digital acquisition element and the control element are connected with each other through a communication cable (17) and a power cable (19). Control instructions and decision rules are input through the touch screen (16). The single chip microcomputer system (18) collects signals of the pressure sensor (5), the flow sensor (2) and the concentration sensor (11), and controls working states of the electromagnetic valve A (4), the electromagnetic valve B (9) and the vacuum pump (12) according to decision rules through operation, so that adsorption and desorption work cycles are automatically completed. Meanwhile, the single chip microcomputer system (18) uploads the data collected from the sensors to the touch screen (16) through the R485 communication cable (17). The touch screen (16) displays various data of the operation of the system, and can also upload the data to a network through the wireless communication antenna (15). The control mode of the system operation is as follows:
a. a concentration control value, a desorption pressure control value and desorption pressure maintaining time are set on the touch screen (16) and are transmitted to the singlechip system (18) through a communication cable (17).
b. The single chip microcomputer system (18) patrols the concentration sensor (11), the pressure sensor (5) and the flow sensor (2), transmits data to the touch screen (16) through the communication cable (17) and displays the data on the screen.
c. When the system starts to work, the single chip microcomputer system (18) compares the detected concentration values to set concentration control values, when the concentration values exceed the control values, the adsorption materials are saturated, the electromagnetic valve A (4) and the electromagnetic valve B (9) are closed, the vacuum pump (12) is started, and meanwhile, the desorption vacuum pressure is detected. And when the desorption vacuum pressure reaches a set value, stopping the vacuum pump (12), starting desorption and pressure maintaining and starting timing. When the desorption pressure maintaining timing reaches a set value, the electromagnetic valve A (4) and the electromagnetic valve B (9) are opened to return to the adsorption working state.

Claims (3)

1. The utility model provides a cubic oil gas recovery unit which characterized in that: the tertiary oil gas recovery device consists of an adsorption type oil gas recovery system and a touch screen single-chip microcomputer control system; the adsorption type oil gas recovery system consists of a vacuum pump, an adsorption tank, a recovery tank and a control element; the touch screen single chip microcomputer system is composed of a touch screen, a single chip microcomputer system, a digital acquisition element and a control element.
2. The tertiary oil and gas recovery device according to claim 1, wherein: the adsorption type oil gas recovery system consists of a vacuum pump, an adsorption tank, a recovery tank and an electromagnetic valve; the oil tank exhaust pipe is connected in series with a flow sensor, a throttle valve, an electromagnetic valve A and a pressure sensor; the back of the pressure sensor is connected with two paths, and one path is connected with an adsorption tank A, an adsorption tank B, an electromagnetic valve B, a concentration sensor and an emptying pipe in series; the other path behind the pressure sensor is connected in series with a one-way valve, a vacuum pump, a recovery tank and an oil return pipe.
3. The tertiary oil and gas recovery device according to claim 1, wherein: the touch screen single chip microcomputer control system consists of a touch screen, a single chip microcomputer system, a digital acquisition element and a control element; the data acquisition element consists of a pressure sensor, a flow sensor and a concentration sensor; the control element consists of an electromagnetic valve A, an electromagnetic valve B and a vacuum pump.
CN202021895115.9U 2020-08-31 2020-08-31 Tertiary oil gas recovery unit Active CN213866072U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021895115.9U CN213866072U (en) 2020-08-31 2020-08-31 Tertiary oil gas recovery unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021895115.9U CN213866072U (en) 2020-08-31 2020-08-31 Tertiary oil gas recovery unit

Publications (1)

Publication Number Publication Date
CN213866072U true CN213866072U (en) 2021-08-03

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Application Number Title Priority Date Filing Date
CN202021895115.9U Active CN213866072U (en) 2020-08-31 2020-08-31 Tertiary oil gas recovery unit

Country Status (1)

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CN (1) CN213866072U (en)

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