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Oil gas recovery unit capable of realizing PID controlled automatic adsorption pressure and desorption pressure adjusting, and oil recovery method

A technology for automatic adjustment and recovery of units, applied in separation methods, chemical instruments and methods, gas treatment, etc., to achieve effective recovery

Pending Publication Date: 2018-07-24
ZHEJIANG JIALI TECH
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Problems solved by technology

[0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defect that the existing oil and gas recovery system is difficult to fully achieve the adsorption and desorption capacity to the maximum extent, and provide an oil and gas recovery unit with PID control to automatically adjust the adsorption pressure and desorption pressure and oil vapor recovery method

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  • Oil gas recovery unit capable of realizing PID controlled automatic adsorption pressure and desorption pressure adjusting, and oil recovery method
  • Oil gas recovery unit capable of realizing PID controlled automatic adsorption pressure and desorption pressure adjusting, and oil recovery method

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings of the description.

[0029] Such as figure 1 As shown, the PID control automatically adjusts the adsorption pressure and desorption pressure of the oil and gas recovery unit, including the induced draft fan 6, the oil and gas cooling box 11, and the oil and gas recovery tank 12 connected in sequence. The oil and gas recovery unit also includes the first carbon tank 3, the second Two carbon tanks 4, the first three-way solenoid valve 7, the second three-way solenoid valve 8, vacuum pump 5, PLC controller 12, an interface of the first three-way solenoid valve 7 is connected to the outlet of the oil-gas cooling box 11, and the other two Two ports are respectively connected to the first carbon tank 3 and the second carbon tank 4, one port of the second three-way solenoid valve 8 is connected to the inlet port of the vacuum pump 5, and the other two ports are respectively con...

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Abstract

The invention discloses an oil gas recovery unit capable of realizing PID controlled automatic adsorption pressure and desorption pressure adjusting, and an oil gas recovery method, and belongs to thetechnical field of oil gas recovery. In the prior art, full adsorption and desorption are impossible to realize using conventional oil gas recovery systems. According to the oil gas recovery unit capable of realizing PID controlled automatic adsorption pressure and desorption pressure adjusting, a proportioning valve is taken as an actuating mechanism to realize PID automatic adjusting; the proportioning valve is controlled by a PLC controller; the PLC controller is connected with a pressure sensor which is used for detecting the internal pressure of a carbon tank; PID automatic adjusting ofthe opening degree of the proportioning valve is adopted by the PLC controller based on the pressure detected by the pressure sensor, so that pressure needed by the carbon tank is provided, and pressure fluctuating value ranges from -2KPa to 2KPa; a preset pressure can be achieved and maintained to be constant based on technology requirements, oil gas full desorption recovery is realized, and theindexes of gas discharged after adsorption are much lower than those disclosed in national standards.

Description

technical field [0001] The invention belongs to oil and gas recovery technology, in particular to an oil and gas recovery unit and an oil and gas recovery method with PID control to automatically adjust adsorption pressure and desorption pressure. Background technique [0002] In order to prevent the volatilized oil and gas from being discharged indiscriminately when oil is released from the oil depot, according to the environmental protection requirements of our country, the oil and gas must be collected, processed and recycled. The exhaust valve in the existing oil and gas collection, treatment and recovery system (unit) is an on-off valve, the adjustment and control accuracy is not high, and it is difficult for the oil and gas recovery system to fully achieve the adsorption and desorption capabilities to the maximum extent. Contents of the invention [0003] The technical problem to be solved and the technical task proposed by the present invention are to overcome the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
CPCB01D53/0454B01D2259/40003
Inventor 高志勇饶琨
Owner ZHEJIANG JIALI TECH
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