Oil gas recovery device
Technical Field
The invention belongs to the technical field of gasoline oil gas recovery, and particularly relates to an oil gas recovery device.
Background
Among the prior art, the petrol filling station carries out the in-process of filling petrol to the underground oil tank at the tank wagon, and petrol in the underground oil tank and easy vaporization become oil gas and spill over, not only lead to petrol extravagant, give off the oil gas in the external environment moreover and cause explosion and conflagration easily, have the hidden danger to the security row of whole filling station.
This is a disadvantage of the prior art.
Therefore, aiming at the defects in the prior art, the oil gas recovery device is provided; it is very necessary to solve the above technical problems.
Disclosure of Invention
The present invention aims to provide an oil gas recovery device to solve the above technical problems.
In order to achieve the purpose, the invention provides the following technical scheme:
the oil gas recovery device is characterized by comprising a vehicle-mounted oil tank and an underground oil tank, wherein the vehicle-mounted oil tank is communicated with the underground oil tank through an oil injection pipeline, and the underground oil tank is connected to a recovery tank through an oil gas pipeline and a buffer tank;
a refrigeration coil is arranged in the recovery tank and is connected to a compressor outside the recovery tank through a pipeline A;
the bottom of the recovery tank is provided with a gasoline collection funnel, the bottom of the gasoline collection funnel is connected with an overflow pipe, and a gasoline recovery electromagnetic valve is arranged on the overflow pipe;
a piston is also arranged in the recovery tank and is connected to an external hydraulic cylinder through a push-pull rod;
the piston type air source recovery device further comprises a booster pump, wherein the input end of the booster pump is connected to the air source tank through a pipeline B, the output end of the booster pump is connected to the recovery tank through a pipeline C, and the joint of the pipeline C and the recovery tank is located below the lower limit of the piston;
the recovery tank is also connected to the air source tank through a pipeline D, a first electromagnetic valve is arranged on the pipeline D, and the joint of the pipeline D and the recovery tank is positioned below the lower limit of the piston;
a second electromagnetic valve is arranged on an oil gas pipeline between the recovery tank and the buffer tank;
the recovery tank is also internally provided with a pressure sensor and a temperature sensor, the temperature sensor and the pressure sensor are both connected to a signal input end of the microcontroller, and a signal output end of the microcontroller is connected with a first electromagnetic relay, a second electromagnetic relay, a first electromagnetic valve, a second electromagnetic valve and a gasoline recovery electromagnetic valve;
the hydraulic cylinder is connected to a power supply through a first electromagnetic relay, and the booster pump is connected to the power supply through a second electromagnetic relay.
Preferably, the refrigeration coil is a U-shaped refrigeration coil; the heat exchange area with the oil gas is increased.
Preferably, the refrigeration coil is made of copper; increasing the rate of heat exchange with the oil and gas.
Preferably, the microcontroller is a single chip microcomputer controller.
Preferably, the gas source tank is filled with inert gas.
The invention has the advantages that the temperature in the recovery tank is reduced through the compressor and the refrigeration coil pipe so as to realize the liquefaction of oil gas; the piston and the hydraulic cylinder are arranged to compress the gas in the recovery tank, so that the liquefaction of oil gas is realized, and the pressure in the recovery tank is increased by inputting inert gas into the recovery tank through the booster pump;
pressure information and temperature information in the recovery tank are collected through a pressure sensor and a temperature sensor, the collected temperature information and the collected pressure information are sent to a microcontroller, and the microcontroller controls a first electromagnetic relay, a second electromagnetic relay, a first electromagnetic valve, a second electromagnetic valve and a gasoline recovery electromagnetic valve according to the temperature information and the pressure information;
after the oil gas enters the recovery tank through the oil gas pipeline, the second electromagnetic valve is closed, the second electromagnetic relay is conducted, the booster pump conveys inert gas into the recovery tank to increase the pressure in the recovery tank, then the first electromagnetic relay is conducted, the hydraulic cylinder drives the piston to move through the push-pull rod, the gas in the recovery tank is compressed, the pressure in the recovery tank is increased, the oil gas is liquefied, then the gasoline recovery electromagnetic valve is opened, and the liquefied oil gas is reserved through the overflow pipe; then, opening a first electromagnetic valve, enabling inert gas to enter a gas source tank, and simultaneously resetting the piston; and finishing a compression process. In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a schematic structural diagram of an oil gas recovery device provided by the invention.
Fig. 2 is a control schematic diagram of an oil gas recovery device provided by the invention.
The system comprises 100-vehicle oil tanks, 200-underground oil tanks, 300-oil injection pipelines, 400-buffer tanks, 1-recovery tanks, 2-refrigeration coils, 3-A pipelines, 4-compressors, 5-gasoline collecting hoppers, 6-overflow pipes, 7-gasoline recovery electromagnetic valves, 8-pistons, 9-push-pull rods, 10-hydraulic cylinders, 11-booster pumps, 12-B pipelines, 13-gas source tanks, 14-C pipelines, 15-D pipelines, 16-first electromagnetic valves, 17-oil and gas pipelines, 18-second electromagnetic valves, 19-pressure sensors, 20-temperature sensors, 21-microcontrollers, 22-first electromagnetic relays, 23-second electromagnetic relays and 24-power supplies.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1 and 2, the oil gas recovery device provided by the invention is characterized by comprising a vehicle-mounted oil tank 100 and an underground oil tank 200, wherein the vehicle-mounted oil tank 100 is communicated with the underground oil tank 200 through an oil injection pipeline 300, and the underground oil tank 200 is connected to a recovery tank 1 through an oil gas pipeline 17 and a buffer tank 400;
a refrigeration coil 2 is arranged in the recovery tank 1, and the refrigeration coil 2 is connected to a compressor 4 outside the recovery tank 1 through a pipeline A3;
the bottom of the recovery tank 1 is provided with a gasoline collection funnel 5, the bottom of the gasoline collection funnel 5 is connected with an overflow pipe 6, and a gasoline recovery electromagnetic valve 7 is arranged on the overflow pipe 6;
a piston 8 is also arranged in the recovery tank 1, and the piston 8 is connected to an external hydraulic cylinder 10 through a push-pull rod 9;
the piston type air conditioner further comprises a booster pump 11, wherein the input end of the booster pump 11 is connected to an air source tank 13 through a pipeline B12, the output end of the booster pump 11 is connected to the recovery tank 1 through a pipeline C14, and the joint of the pipeline C14 and the recovery tank 1 is positioned below the lower limit of the piston 8;
the recovery tank 1 is also connected to the air source tank 13 through a D pipeline 15, a first electromagnetic valve 16 is arranged on the D pipeline 15, and the connection position of the D pipeline 15 and the recovery tank 1 is positioned below the lower limit of the piston;
a second electromagnetic valve 18 is arranged on the oil gas pipeline 17 between the recovery tank 1 and the buffer tank 400;
the recovery tank 1 is also internally provided with a pressure sensor 19 and a temperature sensor 20, the temperature sensor 20 and the pressure sensor 19 are both connected to a signal input end of a microcontroller 21, and a signal output end of the microcontroller 21 is connected with a first electromagnetic relay 22, a second electromagnetic relay 23, a first electromagnetic valve 16, a second electromagnetic valve 18 and a gasoline recovery electromagnetic valve 7;
the hydraulic cylinder 10 is connected to a power supply 24 through a first electromagnetic relay 22, and the booster pump 11 is connected to the power supply 24 through a second electromagnetic relay 23.
In this embodiment, the refrigeration coil 2 is a U-shaped refrigeration coil; the heat exchange area with the oil gas is increased.
In this embodiment, the refrigeration coil 2 is a copper refrigeration coil; increasing the rate of heat exchange with the oil and gas.
In this embodiment, the microcontroller 21 is a single chip controller.
In this embodiment, the gas source tank 13 is filled with inert gas.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.