CN111807308A - Closed-loop oil gas recovery system - Google Patents
Closed-loop oil gas recovery system Download PDFInfo
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- CN111807308A CN111807308A CN202010747230.XA CN202010747230A CN111807308A CN 111807308 A CN111807308 A CN 111807308A CN 202010747230 A CN202010747230 A CN 202010747230A CN 111807308 A CN111807308 A CN 111807308A
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- oil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
- B67D7/0478—Vapour recovery systems constructional features or components
- B67D7/049—Vapour recovery methods, e.g. condensing the vapour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/78—Arrangements of storage tanks, reservoirs or pipe-lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/74—Devices for mixing two or more different liquids to be transferred
- B67D2007/745—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level
- B67D2007/748—Devices for mixing two or more different liquids to be transferred for obtaining fuel of a given octane level by mixing fuel with additives, e.g. anti-knocking agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a closed-loop oil-gas recovery system, which comprises an oil tank truck, an oil-gas recovery device, an above-ground oil storage tank, a flow valve, a controller and a gas flowmeter, wherein a three-way pipe is also connected to the oil return pipe, the input end of the three-way pipe is connected with the oil return pipe, one output end of the three-way pipe is connected with an oil well pump, the other output end of the three-way pipe is connected with the above-ground oil storage tank through a first one-way valve, the other end of the oil well pump is connected with a three-way return pipe, the input end of the three-way return pipe is connected with the oil well pump, one output end of the three-way return pipe is connected with the input end of the oil-gas recovery device, the other output end of the three-way return. The invention can find whether the oil is safe in time in the oil return process, and can ensure that the recovered oil and gas meet the national regulations, thereby finally improving the oil return effect.
Description
Technical Field
The invention relates to the technical field of closed-loop oil gas recovery systems, in particular to a closed-loop oil gas recovery system.
Background
The gasoline station oil gas recovery means that in the process of loading and unloading gasoline and refueling vehicles, volatile gasoline oil gas is collected, and the purpose of recycling is achieved by one or two methods of absorption, adsorption or condensation and the like, or the pollution of the oil gas is reduced, or the oil gas is changed into liquid from gas state and then changed into gasoline again. At present, most of oil depots adopt an oil gas recovery device to recover oil gas volatilized in the oiling process of a ground oil tank truck, so that the emission of VOCs pollutants is reduced, and more importantly, safety accidents caused by the volatilized oil gas are prevented; however, the method of recovering by using the oil gas recovery device is only recovering, and does not detect the situation in the recovery process in real time, so that whether the oil gas recovery is safe or not cannot be found in time, and whether the recovered oil gas meets the national standard or not cannot be known, so that improvement is needed.
Disclosure of Invention
The invention aims to provide a closed-loop oil gas recovery system, which aims to solve the problems that whether oil gas recovery is safe cannot be found in time and whether the recovered oil gas meets the national standard cannot be known in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a closed loop oil gas recovery system comprises an oil tank truck, an oil gas recovery device and an above-ground oil storage tank, wherein an oil circuit of the oil gas recovery device is connected with the above-ground oil storage tank through an oil return pipe, the above-ground oil storage tank is connected with the oil tank truck through an oil supply pipe, the oil tank truck is connected with the oil gas recovery device through an air supply pipe, a flow valve for detecting flow is connected onto the oil supply pipe, a three-way pipe is further connected onto the oil return pipe, the input end of the three-way pipe is connected with the oil return pipe, one output end of the three-way pipe is connected with an oil well pump, the other output end of the three-way pipe is connected with the above-ground oil storage tank through a first one-way valve, the other end of the oil well pump is connected with a three-way return pipe, the input end of the three-way return pipe is connected with the oil, a second check valve is all connected at two output of tee bend back flow, is equipped with the oil mass detector that is used for detecting whether oil meets the requirements in the tee bend back flow, has concatenated the gas flowmeter who is used for detecting oil gas flow on the blast pipe, oil-well pump, first check valve, second check valve, oil mass detector, gas flowmeter and flow valve all are connected with a controller, are connected with the display on the controller.
The structure utilizes the oil supply pipe to convey oil in the above-ground oil storage tank to the oil tank truck, the oil tank truck can generate oil gas in the conveying process, the oil gas is conveyed into the oil gas recovery device through the air supply pipe to be recovered, and then the oil gas is returned into the above-ground oil storage tank through the oil return pipe to realize the recovery effect on the oil gas, in the structure, the oil return pipe is also connected with a three-way pipe, the input end of the three-way pipe is connected with the oil return pipe, one output end of the three-way pipe is connected with the oil well pump, the other output end of the three-way pipe is connected with the above-ground oil storage tank through the first one-way valve, the other end of the oil well pump is connected with a three-way return pipe, the input end of the three-way return pipe is connected with the oil well pump, one output end of the, a second check valve is all connected at two output of tee bend back flow, be equipped with the structure setting that is used for detecting the oil mass detector that whether oil meets the requirements in the tee bend back flow, realize at the oil return in-process, utilize the oil-well pump to draw the oil of oil return in-process and send into the tee bend back flow, utilize the oil mass detector to carry out the oil mass detection to the oil of oil return, after the detection meets the requirements, the second check valve on the way of drive and ground oil storage tank intercommunication is opened, realize the oil return, if detect and not meet the requirements, after returning oil to give oil gas recovery unit and carrying out secondary treatment, finally guarantee that the oil of oil return meets the standard.
In order to realize carrying out concentration detection to oil gas, avoid influencing the security because oil gas concentration is too high, be equipped with the oil gas concentration detection device who is used for detecting oil gas concentration in oil gas recovery device, oil gas concentration detection device be connected with the controller electricity, just oil gas concentration detection device's output connection have oil gas purification device.
In order to detect the temperature of oil gas, avoid influencing the security because the oil gas high temperature, be equipped with thermodetector and the oil gas heat sink that is used for detecting the oil gas temperature in oil gas recovery unit, thermodetector, oil gas heat sink be connected with the controller electricity.
Preferably, the oil gas cooling device is an ice machine.
In order to detect the water content of oil gas, avoid influencing the purity in later stage because oil gas water content is too high, the oil mass detector contain the moisture detector who is used for detecting the oil mass water content, be connected with the data repository that has water gas content requirement threshold in advance on the controller.
Preferably, in order to realize automatic detection of the tank oil, a liquid level sensor electrically connected with the controller and used for detecting the volume of the tank truck is arranged in the tank truck, and the controller is further connected with a liquid level alarm and a third one-way valve positioned on the oil supply pipe.
In order to realize the automatic drying of the oil gas, an oil gas dryer which is electrically connected with the controller and used for drying the oil gas is arranged on the air feed pipe.
In order to realize the automatic filtration of oil gas, a filter which is electrically connected with the controller and used for filtering the oil gas is arranged on the air feed pipe.
Preferably, the controller is a PLC controller.
According to the closed-loop oil gas recovery system, the oil returned by the oil gas recovery system can meet the standard, whether the oil returned by the oil gas is safe or not can be found in time in the oil returning process, the recovered oil gas can meet the national regulations, and the oil returning effect is finally improved.
Drawings
FIG. 1 is a schematic structural diagram of a closed-loop oil and gas recovery system in the embodiment 1 without an installed circuit control part;
FIG. 2 is a schematic structural diagram of a circuit control part of a closed-loop oil and gas recovery system in the embodiment 1;
FIG. 3 is a schematic structural diagram of a closed-loop oil and gas recovery system in the present embodiment 2 without an installed circuit control part;
FIG. 4 is a schematic structural diagram of a circuit control part of a closed-loop oil and gas recovery system in the embodiment 2;
FIG. 5 is a schematic structural diagram of a closed-loop oil and gas recovery system in the present embodiment 3 without an installed circuit control part;
FIG. 6 is a schematic structural diagram of a circuit control part of a closed-loop oil and gas recovery system in the embodiment 3;
FIG. 7 is a schematic structural diagram of a closed-loop oil and gas recovery system in the control part without an installation circuit in the embodiment 4;
FIG. 8 is a schematic structural diagram of a circuit control part of a closed-loop oil and gas recovery system in the embodiment 4;
FIG. 9 is a schematic structural diagram of a closed-loop oil and gas recovery system in the control part without an installation circuit in the embodiment 5;
fig. 10 is a schematic structural diagram of a closed-loop oil and gas recovery system in the control part without an installation circuit in the embodiment 6.
In the figure: the system comprises a tank truck 1, an oil gas recovery device 2, an above-ground oil storage tank 3, an oil return pipe 4, an oil supply pipe 5, an air supply pipe 6, a flow valve 7, a three-way pipe 8, an oil well pump 9, a first one-way valve 11, a three-way return pipe 10, a second one-way valve 12, an oil quantity detector 13, a gas flowmeter 14, a controller 15, a display 16, an oil gas concentration detection device 17, an oil gas purification device 18, a temperature detector 19, an oil gas cooling device 20, a moisture detector 21, a data storage warehouse 22, a liquid level alarm 23, a third one-way valve 24, an oil gas dryer 25, a filter 26 and a liquid level sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
referring to fig. 1 and 2, the present embodiment provides a closed-loop oil-gas recovery system, which includes an oil tank truck 1, an oil-gas recovery device 2, and an above-ground oil storage tank 3, an oil path of the oil-gas recovery device 2 is connected to the above-ground oil storage tank 3 through an oil return pipe 4, the above-ground oil storage tank 3 is connected to the oil tank truck 1 through an oil supply pipe 5, the oil tank truck 1 is connected to the oil-gas recovery device 2 through an air supply pipe 6, the oil supply pipe 5 is connected to a flow valve 7 for detecting a flow rate, the oil return pipe 4 is further connected to a three-way pipe 8, an input end of the three-way pipe 8 is connected to the oil return pipe 4, one output end of the three-way pipe 8 is connected to an oil pump 9, the other output end of the three-way pipe 8 is connected to the above-ground oil storage tank 3 through a first check, one of them output of tee bend back flow pipe 10 is connected the input of oil gas recovery device 2, the common port that three-way pipe 8 and first check valve 11 are connected is connected to another output of tee bend back flow pipe 10, all connect a second check valve 12 at two output of tee bend back flow pipe 10, be equipped with the oil mass detector 13 that is used for detecting whether oil meets the requirements in tee bend back flow pipe 10, it has the gas flowmeter 14 that is used for detecting oil gas flow to concatenate on blast pipe 6, oil-well pump 9, first check valve 11, second check valve 12, oil mass detector 13, gas flowmeter 14 and flow valve 7 all are connected with a controller 15, are connected with display 16 on controller 15.
Preferably, the controller 15 is a PLC controller.
When the oil recovery device works, oil in an above-ground oil storage tank 3 is conveyed to an oil tank truck 1 through an oil supply pipe 5, the oil tank truck 1 can generate oil gas in the conveying process, the oil gas is conveyed into an oil gas recovery device 2 through an air supply pipe 6 to be recovered, and then the oil gas is returned into the above-ground oil storage tank 3 through an oil return pipe 4 to realize the recovery effect on the oil gas, in the structure, a three-way pipe 8 is further connected to the oil return pipe 4, the input end of the three-way pipe 8 is connected with the oil return pipe 4, one output end of the three-way pipe 8 is connected with an oil well pump 9, the other output end of the three-way pipe 8 is connected with the above-ground oil storage tank 3 through a first one-way valve 11, the other end of the oil well pump 9 is connected with a three-way return pipe 10, the input end of the, the other output end of the three-way return pipe 10 is connected with a common end of a three-way pipe 8 connected with a first one-way valve 11, two output ends of the three-way return pipe 10 are both connected with a second one-way valve 12, a structure setting of an oil quantity detector 13 for detecting whether oil meets requirements is arranged in the three-way return pipe 10, so that in the oil return process, oil in the oil return process is extracted by an oil pump 9 and is sent into the three-way return pipe 10, the oil quantity detector 13 is used for detecting the oil quantity of the oil returned, after the oil meets the requirements, the second one-way valve 12 on the way communicated with the ground oil storage tank 3 is driven to be opened to realize oil return, if the oil does not meet the requirements, the oil returned is finally ensured to meet the standards after the oil is returned to the oil gas recovery device 2 for secondary treatment, whether the oil returned is safe or not to be found in time in, and finally, the oil return effect is improved.
Example 2:
please refer to fig. 3 and 4, in order to realize the concentration detection of the oil gas and avoid the influence on the safety due to the excessively high oil gas concentration, an oil gas concentration detection device 17 for detecting the oil gas concentration is arranged in the oil gas recovery device 2, the oil gas concentration detection device 17 is electrically connected with the controller 15, the output of the oil gas concentration detection device 17 is connected with an oil gas purification device 18, the concentration of the oil gas is monitored in real time by the oil gas concentration detection device 17, the influence on the safety due to the excessively high oil gas concentration is avoided, and once the problem is found, the oil gas is filtered by starting the oil gas purification device 18.
Example 3:
referring to fig. 5 and 6, in order to detect the temperature of the oil gas and avoid the influence on the safety due to the excessively high temperature of the oil gas, a temperature detector 19 and an oil gas cooling device 20 for detecting the temperature of the oil gas are arranged in the oil gas recovery device 2, the temperature detector 19 and the oil gas cooling device 20 are electrically connected to the controller 15, the temperature of the oil gas is detected by the temperature detector 19, the influence on the safety due to the excessively high temperature of the oil gas is avoided, and once the temperature is excessively high, the oil gas cooling device 20 is started to cool the oil gas.
Preferably, the oil and gas cooling device 20 is an ice maker.
Example 4:
referring to fig. 7 and 8, in order to detect the water content of the oil gas and avoid affecting the purity of the oil gas at the later stage due to the excessively high water content of the oil gas, the oil amount detector 13 includes a water detector 21 for detecting the water content of the oil amount, and a data repository 22 pre-storing a water content requirement threshold is electrically connected to the controller 15.
In order to realize carrying out automatic drying to oil gas, be equipped with on blast pipe 6 and be connected with controller 15 electricity and be used for oil gas to carry out the oil gas desiccator 25 of drying, require the threshold value to contrast through setting up moisture detector 21 to the water content of oil gas and with the water gas content that stores predetermineeing in data repository 22, avoid influencing the purity in later stage because oil gas water content is too high, in case discover oil gas contains moisture, utilize oil gas desiccator 25 to filter oil gas, improve the dewatering effect, it more meets the requirements finally to guarantee the oil return.
Example 5:
please refer to fig. 9, this embodiment provides a closed-loop oil gas recovery system, as an optimization, in order to realize the automatic detection of the tank oil, a liquid level sensor 27 electrically connected to the controller 15 and used for detecting the volume of the tank truck 1 is arranged in the tank truck 1, the controller 15 is further connected with a liquid level alarm 23 and a third check valve 24 located on the oil supply pipe 5, the tank oil amount is detected in the tank truck 1 by the liquid level sensor 27, the alarm is given when the tank is overfilled, the third check valve 24 is closed, the automatic monitoring of the tank oil is realized, the manual detection is not needed, and the working efficiency is improved.
Example 6:
referring to fig. 10, in order to realize automatic oil gas filtration, a filter 26 electrically connected to the controller 15 and used for oil gas filtration is disposed on the air feed pipe 6, and the oil gas is filtered by the filter 26.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a closed loop oil gas recovery system, contains tank wagon (1), oil gas recovery device (2) and above-ground oil storage tank (3), the oil circuit of oil gas recovery device (2) passes through oil return pipe (4) and is connected with above-ground oil storage tank (3), above-ground oil storage tank (3) are connected through oil supply pipe (5) tank wagon (1), tank wagon (1) is connected through blast pipe (6) oil gas recovery device (2), its characterized in that: a flow valve (7) for detecting flow is connected on the oil supply pipe (5), a three-way pipe (8) is further connected on the oil return pipe (4), the input end of the three-way pipe (8) is connected with the oil return pipe (4), one output end of the three-way pipe (8) is connected with an oil well pump (9), the other output end of the three-way pipe (8) is connected with an above-ground oil storage tank (3) through a first one-way valve (11), the other end of the oil well pump (9) is connected with a three-way return pipe (10), the input end of the three-way return pipe (10) is connected with the oil well pump (9), one output end of the three-way return pipe (10) is connected with the input end of the oil-gas recovery device (2), the other output end of the three-way return pipe (10) is connected with the common end of the three-way pipe (8) and the first one-way valve, be equipped with in tee bend back flow pipe (10) and be used for detecting whether oil meets the oil mass detector (13) of requirement, it has gas flowmeter (14) that are used for detecting oil gas flow to concatenate on blast pipe (6), oil-well pump (9), first check valve (11), second check valve (12), oil mass detector (13), gas flowmeter (14) and flow valve (7) all are connected with a controller (15), are connected with display (16) on controller (15).
2. A closed loop oil and gas recovery system according to claim 1, characterized in that: be equipped with in oil gas recovery unit (2) and be used for detecting oil gas concentration's oil gas concentration detection device (17), oil gas concentration detection device (17) be connected with controller (15) electricity, just oil gas concentration detection device's (17) output connection have oil gas purifier (18).
3. A closed loop oil and gas recovery system according to claim 1, characterized in that: be equipped with thermodetector (19) and oil gas heat sink (20) that are used for detecting the oil gas temperature in oil gas recovery unit (2), thermodetector (19), oil gas heat sink (20) be connected with controller (15) electricity.
4. A closed loop oil and gas recovery system according to claim 3, characterized in that: the oil gas cooling device (20) is an ice machine.
5. A closed loop oil and gas recovery system according to claim 1, characterized in that: the oil mass detector (13) comprises a moisture detector (21) for detecting the water content of the oil mass, and a data storage bank (22) which is prestored with a water-gas content requirement threshold value is electrically connected to the controller (15).
6. A closed loop oil and gas recovery system according to claim 1, characterized in that: a liquid level sensor (27) which is electrically connected with the controller (15) and is used for detecting the volume of the oil tank truck (1) is arranged in the oil tank truck (1), and a liquid level alarm (23) and a third one-way valve (24) positioned on the oil supply pipe (5) are also connected to the controller (15).
7. A closed loop oil and gas recovery system according to claim 1, characterized in that: an oil-gas drier (25) which is electrically connected with the controller (15) and is used for drying oil gas is arranged on the air feed pipe (6).
8. A closed loop oil and gas recovery system according to claim 1, characterized in that: the air supply pipe (6) is provided with a filter (26) which is electrically connected with the controller (15) and is used for filtering oil gas.
9. A closed loop oil and gas recovery system according to claim 1, characterized in that: the controller (15) is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747230.XA CN111807308A (en) | 2020-07-30 | 2020-07-30 | Closed-loop oil gas recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747230.XA CN111807308A (en) | 2020-07-30 | 2020-07-30 | Closed-loop oil gas recovery system |
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| CN111807308A true CN111807308A (en) | 2020-10-23 |
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| CN202010747230.XA Pending CN111807308A (en) | 2020-07-30 | 2020-07-30 | Closed-loop oil gas recovery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112526112A (en) * | 2021-02-09 | 2021-03-19 | 山东广域科技有限责任公司 | Automatic remote monitoring device for water content of oil well mouth |
| CN114835079A (en) * | 2022-06-02 | 2022-08-02 | 杭州鼎玺智能技术有限公司 | Closed-loop online oil gas recovery monitoring system |
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| CN114835079A (en) * | 2022-06-02 | 2022-08-02 | 杭州鼎玺智能技术有限公司 | Closed-loop online oil gas recovery monitoring system |
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Application publication date: 20201023 |