CN216005208U - Oil tank truck capable of recovering residual gas - Google Patents
Oil tank truck capable of recovering residual gas Download PDFInfo
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- CN216005208U CN216005208U CN202121931035.9U CN202121931035U CN216005208U CN 216005208 U CN216005208 U CN 216005208U CN 202121931035 U CN202121931035 U CN 202121931035U CN 216005208 U CN216005208 U CN 216005208U
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Abstract
The utility model discloses an oil-drawing tank truck capable of recovering residual gas, which comprises an oil-drawing vehicle and an oil-drawing tank, wherein the oil-drawing tank is fixed on the oil-drawing vehicle and is provided with a front-end tank opening and a rear-end tank opening, a front cover plate is arranged outside the front-end tank opening, a liquid level meter, a pressure transmitter and a gas recovery quick connector are arranged in the front cover plate, and a rear cover plate and an oil charging control valve are arranged in the rear-end tank opening; the gas inlet of the gas filter is connected with a gas recovery quick connector through a recovery hose; and a gas outlet of the gas filter is connected with a well site gas recovery pipeline through a processed pipeline, and the other end of the well site gas recovery pipeline is connected with an external gas delivery pipeline. The device can be widely applied to the oil pulling operation of the oil production well with the storage tank, can complete residual gas recovery processing in the oil loading process, does not damage the normal production equipment structure of the oil well, does not violate the related production safety standard, and eliminates the harm to human bodies and potential safety hazards caused by gas overflow.
Description
Technical Field
The utility model relates to a gas recovery device of an oil tank truck in the petroleum industry, in particular to an oil tank truck capable of recovering residual gas.
Background
At present, in a single well or a remote oil production well of an oil field, because of various adverse factors existing in matching and installing an oil pipeline, produced crude oil is often stored in a storage tank firstly, and then the crude oil in the storage tank is transported to a designated department by using an oil tank truck. In the process of loading and unloading oil, the oil-pulling tank truck can volatilize a plurality of gases harmful to human bodies, and the existing oil-pulling tank truck still needs manual operation when carrying out single-well oil-pulling. Therefore, the volatilization of the gas can cause considerable harm to the health of the crude oil handling personnel and the surrounding population. In the oil loading process, a large amount of volatilization of oil gas not only causes oil product loss and quality reduction, but also discharges a large amount of harmful gas into the atmosphere, and has serious fire hazard while polluting the atmospheric environment.
At present, when the oil tank truck pulls oil, a section of flexible rubber hose is additionally arranged on a loading arm of a storage tank to realize connection with a tank opening in the oil tank, and the oil loading process cannot be hermetically connected with the tank opening, so that residual air in the oil tank truck of the oil tank truck overflows.
In view of this, in order to avoid health damage to workers and reduce environmental pollution caused by residual gas, the oil-carrying tank truck capable of recovering residual gas needs to be developed to solve the problem of gas overflow when the oil-carrying tank truck is used for carrying oil at present.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides an oil tank truck capable of recovering residual gas, which can recover the residual gas in the oil tank. When the crude oil in the storage tank is loaded by the oil tank truck, the residual gas generated in the oil loading process can be recovered in real time by using the utility model under the condition of not damaging the structure of oil well production equipment. The pollution to the environment and the harm to the human body are reduced to the maximum extent.
The technical solution of the utility model is as follows:
the utility model provides a can retrieve drawing oil tank car of residual air is including drawing the oil truck and drawing the oil jar, draws the oil jar to fix on drawing the oil truck, draws the oil jar to be equipped with front end jar mouth and rear end jar mouth, wherein:
a front cover plate is arranged outside the front-end tank opening, and a liquid level meter, a pressure transmitter and a gas recovery quick connector are arranged in the front cover plate;
a rear cover plate and an oil filling control valve are arranged in the rear end tank opening;
the gas inlet of the gas filter is connected with a gas recovery quick connector through a recovery hose;
the gas outlet of the gas filter is connected with a well site gas recovery pipeline through a treated pipeline;
the other end of the well site gas recovery pipeline is connected with an external gas transmission pipeline.
Preferably, a gas recovery appliance box is also arranged in the body of the oil pumping vehicle positioned below the oil pumping tank; the gas recovery appliance box is arranged at the end close to the vehicle head of the oil pumping vehicle body.
Preferably, the gauge is an ultrasonic gauge; the pressure transmitter is a wireless pressure transmitter.
Preferably, the gas filter contains a methane adsorbent, a ferric oxycarboxylate and a cleaning agent.
Preferably, the oil charging control valve installed in the rear cover plate is an aluminum alloy one-way ball valve; the lower end of an oil inlet pipeline connected with the lower end of the oil filling control valve extends to the bottom of the oil tank.
Preferably, the lower end of an oil inlet pipeline connected with the lower end of the oil filling control valve is placed along the bottom of the oil pulling tank.
The utility model provides a can retrieve drawing oil tank car of residual air is including drawing the oil truck and drawing the oil jar, draws the oil jar to fix on drawing the oil truck, draws the oil jar to be equipped with front end jar mouth and rear end jar mouth, wherein:
a front cover plate is arranged outside the front-end tank opening, and a liquid level meter, a pressure transmitter and a gas recovery quick connector are arranged in the front cover plate;
a rear cover plate and an oil filling control valve are arranged in the rear end tank opening;
the gas inlet of the gas booster is connected with a gas recovery quick connector through a recovery hose;
the gas outlet of the gas booster is connected with a well site gas recovery pipeline through a treated pipeline;
the other end of the well site gas recovery pipeline is connected with the wellhead of the oil production well.
Preferably, the other end of the wellsite gas recovery pipeline is connected with a casing valve at the wellhead of the oil production well; a gas recovery appliance box is also arranged in the body of the oil pumping vehicle positioned below the oil pumping tank; the gas recovery appliance box is arranged at the end close to the vehicle head of the oil pumping vehicle body, and the gas supercharger is arranged in the gas recovery appliance box.
Preferably, an output shaft is further connected from the output end of the engine gearbox of the oil pumping vehicle and is connected with the input end of the gas supercharger.
Preferably, the gauge is an ultrasonic gauge; the pressure transmitter is a wireless pressure transmitter; the gas filter is filled with a methane adsorbent, carboxyl ferric oxide and a cleaning agent.
The utility model has the following remarkable using effects:
1. the utility model can be widely applied to the oil pulling operation of the oil production well with the storage tank, and the residual gas recovery treatment is completed in the oil charging process.
2. The utility model is used for loading oil from the storage tank of the oil production well, does not damage the normal production equipment structure of the oil well, and does not violate the related production safety regulations.
3. According to the utility model, related monitoring and control components are added in the front-end tank opening and the rear-end tank opening of the oil pumping tank, so that the oil pumping and oil filling operations are convenient and fast while residual gas recovery is completed.
4. Compared with the existing oil drawing mode, the utility model has the remarkable advantages that:
firstly, the closed operation of the whole oil drawing process is realized, and the environmental pollution caused by gas discharge is eliminated;
residual gas in the oil pumping tank is recovered, and energy is saved;
and the harm to human bodies and potential safety hazards caused by gas overflow are eliminated.
In conclusion, the residual air recovery device is quick and convenient to operate, safe to use, environment-friendly and energy-saving, has a remarkable using effect, and can obtain remarkable economic benefits.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic diagram of the working principle and structure of the present invention.
FIG. 2 is a schematic view of the structure of the gas filter of the present invention.
Fig. 3 is a schematic view of the structure of the gas compressor of the present invention.
Fig. 4 is a schematic view of the front end can mouth structure of the present invention.
Fig. 5 is a schematic view of the rear end spout construction of the present invention.
In the figure: the device comprises an oil storage tank 1, a crane pipe 2, a rotary joint 3, a front end tank opening 4, an ultrasonic liquid level meter 5, a wireless pressure transmitter 6, a gas recovery quick joint 7, a residual gas recovery pipeline 8, a high-pressure hose 9, an oil charging control valve 10, a rear end tank opening 11, a flange 12, a gas supercharger 13, a gas filter 14, a rear cover plate 15, a valve rod switch 16, a handle 17, an oil pumping vehicle 18 and an oil pumping tank 19.
Detailed Description
The drawings are for reference and illustration purposes only and are not intended to limit the scope of the present disclosure. The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. 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.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The utility model has two embodiments
Implementation mode one
Referring to fig. 1, 2, 4 and 5, the oil tank truck capable of recycling residual air comprises an oil tank truck 18 and an oil tank 19, wherein the oil tank 19 is fixed on the oil tank truck 18, the oil tank 19 is provided with a front end tank opening 4 and a rear end tank opening 11, and the following steps:
a front cover plate is arranged outside the front-end tank opening 4, and a liquid level meter 5, a pressure transmitter 6 and a gas recovery quick connector 7 are arranged in the front cover plate;
a rear cover plate 15 and an oil filling control valve 10 are arranged in the rear end tank opening 11;
the gas inlet of the gas filter 14 is connected with the gas recovery quick connector 7 through a recovery hose;
the gas outlet of the gas filter 14 is connected with the wellsite gas recovery pipeline 8 through a treated pipeline;
the other end of the wellsite gas recovery line 8 is connected to an external gas delivery line.
The front end port 4 of the oil pulling tank 19 fixed on the oil pulling vehicle 18 is generally open, and is especially easy to volatilize a plurality of gases harmful to human bodies in the process of loading and unloading crude oil, but the oil pulling operation is still needed when the oil is pulled on a single well or a remote oil production well in an oil field, the liquid level condition in the oil pulling tank 19 needs to be observed by an operator climbing to the tank top by naked eyes, and certain potential safety hazards exist when the oil pulling tank climbs up and down while the working strength is high. Volatile gas in the crude oil causes non-negligible harm to the health of loading and unloading personnel and surrounding people, and a large amount of harmful gas is discharged into the atmosphere while the oil loss and the quality reduction are caused by the large amount of volatilization of oil gas, so that the atmospheric environment is polluted and great fire hazard can be generated. In order to solve the problem of oil gas volatilization of the oil-carrying tank truck in the oil loading process, a front cover plate is arranged outside a front end tank opening 4, and a pressure transmitter 6 and a gas recovery quick connector 7 are arranged in the front cover plate, so that an operation mode of sealing oil loading and residual gas recovery is formed. The liquid level and the gas pressure in the oil pumping tank 19 are monitored at any time by the liquid level meter 5 and the pressure transmitter 6. The volatile gas collected at the top of the oil pulling tank 19 is connected with a gas inlet of a gas filter 14 through a gas recovery quick connector 7 and a recovery hose, and the gas filtered by the gas filter 14 can be directly output after being connected with a well site gas recovery pipeline 8 through a gas outlet and a processed pipeline. The oil level condition in the tank is conveniently observed, the defect of oil pulling gas volatilization in a well site is overcome, energy is saved, and the environment is protected.
On the basis of the above-described embodiments, the present invention also has the following embodiments:
a gas recovery device box 12 is also arranged in the body of the oil pumping vehicle 18 positioned below the oil pumping tank 19; the gas recovery device tank 12 is provided near the head end of the body of the fuel truck 18. The gas recovery device box 12 can house a gas recovery device such as a gas filter 14, and is convenient to store and use. If the gas recovery vessel box 12 is not provided, the gas filter 14 can also be placed in the cab and placed at the surface for connection to the wellsite gas recovery line 8 and gas recovery quick connector 7 when used at the wellsite. The location of the gas recovery implement bin 12 near the front tank opening 4 reduces the use of recovery hoses, while the power of the tanker 18 can be utilized if other equipment is used.
The liquid level meter 5 is an ultrasonic liquid level meter; pressure transmitter 6 is wireless pressure transmitter, convenient to use and do not have the potential safety hazard.
The gas filter 14 is filled with a methane adsorbent, carboxyl iron oxide and a cleaning agent, and the gas filter 14 filled with a filter screen, the methane adsorbent, the carboxyl iron oxide and the cleaning agent is used, so that the filtered gas is ensured to reach the standard and meet the output standard.
The oil charging control valve 10 installed in the rear cover plate 15 is an aluminum alloy one-way ball valve, the oil charging control valve 10 is provided with a valve rod switch 16 and a handle 17, and the material meets the use requirements of fire prevention and explosion prevention; the lower end of an oil inlet pipeline connected with the lower end of the oil filling control valve 10 extends to the bottom of the oil tank 19, so that immersed oil filling can be realized, and oil gas splashing can be prevented.
The lower end of an oil inlet pipeline connected with the lower end of the oil filling control valve 10 is arranged along the bottom of the oil tank 19. The oil inlet pipeline connected with the lower end of the oil filling control valve 10 has enough length, so that immersed oil filling can be realized, and oil gas splashing can be prevented.
When the utility model pulls oil in the production field of an oil production well, the tail end of a crane pipe 2 of a storage tank 1 is connected with an oil loading control valve 10 arranged in a rear cover plate 15 through a rotary joint 3 and a high-pressure hose 9. The oil charging control valve 10 is provided with a valve rod switch 16 and a handle 17, and can implement closed oil charging. A liquid level meter 5, a pressure transmitter 6 and a gas recovery quick connector 7 are arranged in the front-end tank opening 4, wherein the liquid level meter 5 and the pressure transmitter 6 can realize liquid level detection and pressure detection in the oil pumping tank 19. The gas filter 14 filters the residual gas at the top of the oil-pulling tank 19, and the filtered residual gas can be directly output. The utility model realizes the closed operation of the whole oil drawing process and thoroughly eliminates the environmental pollution caused by the discharge of residual gas.
Second embodiment
Referring to fig. 1, 2, 4 and 5, the oil tank truck capable of recycling residual air comprises an oil tank truck 18 and an oil tank 19, wherein the oil tank 19 is fixed on the oil tank truck 18, the oil tank 19 is provided with a front end tank opening 4 and a rear end tank opening 11, and the following steps:
a front cover plate is arranged outside the front-end tank opening 4, and a liquid level meter 5, a pressure transmitter 6 and a gas recovery quick connector 7 are arranged in the front cover plate;
a rear cover plate 15 and an oil filling control valve 10 are arranged in the rear end tank opening 11;
the gas inlet of the gas booster 13 is connected with the gas recovery quick connector 7 through a recovery hose;
the gas outlet of the gas booster 13 is connected with a well site gas recovery pipeline 8 through a treated pipeline;
the other end of the well site gas recovery pipeline 8 is connected with the wellhead of the oil production well.
The front end port 4 of the oil pulling tank 19 fixed on the oil pulling vehicle 18 is generally open, and is especially easy to volatilize a plurality of gases harmful to human bodies in the process of loading and unloading crude oil, but the oil pulling operation is still needed when the oil is pulled on a single well or a remote oil production well in an oil field, the liquid level condition in the oil pulling tank 19 needs to be observed by an operator climbing to the tank top by naked eyes, and certain potential safety hazards exist when the oil pulling tank climbs up and down while the working strength is high. Volatile gas in the crude oil causes non-negligible harm to the health of loading and unloading personnel and surrounding people, and a large amount of harmful gas is discharged into the atmosphere while the oil loss and the quality reduction are caused by the large amount of volatilization of oil gas, so that the atmospheric environment is polluted and great fire hazard can be generated. In order to solve the problem of oil gas volatilization of the oil tank truck in the oil loading process, the front cover plate is arranged outside the front end tank opening 4, and the pressure transmitter 6 and the gas recovery quick connector 7 are arranged in the front cover plate, so that an operation mode of sealing oil loading and residual gas recovery is formed. The liquid level and the gas pressure in the oil pumping tank 19 are monitored at any time by the liquid level meter 5 and the pressure transmitter 6. In the embodiment, the volatile gas gathered at the top of the oil drawing tank 19 is connected with the gas inlet of the gas booster 13 through the gas recovery quick connector 7 and the recovery hose; the gas pressurized by the gas booster 13 is connected with the well site gas recovery pipeline 8 through a gas outlet and a treated pipeline, and then is directly sent back to the oil production well through the well site gas recovery pipeline 8. The oil level condition in the tank is conveniently observed, the defect of oil pulling gas volatilization in a well site is overcome, residual gas in the oil pulling tank 19 is directly sent back into the well, energy is saved, and the environment is protected.
On the basis of the above-described embodiments, the present invention also has the following embodiments:
the other end of the well site gas recovery pipeline 8 is connected with a casing valve of a wellhead of the oil production well.
A gas recovery device box 12 is also arranged in the body of the oil pumping vehicle 18 positioned below the oil pumping tank 19; the gas recovery device box 12 is arranged at the end, close to the end, of the oil pumping vehicle 18, and the gas supercharger 13 is placed in the gas recovery device box 12, so that the gas recovery device is convenient to store and use. If the gas recovery vessel box 12 is not provided, the gas booster 13 can also be placed in the cab and placed at the surface for connection to the wellsite gas recovery line 8 and gas recovery quick connector 7 when used at the wellsite. The gas recovery device box 12 is arranged near the end of the oil pumping vehicle 18, so that the gas recovery device box 12 is close to the front tank opening 4, the use of a recovery hose can be reduced, and the oil pumping vehicle 18 can be used for providing power when the gas supercharger 13 is used.
An output shaft is connected from the output end of the engine gearbox of the oil pulling vehicle 18 to the input end of the gas booster 13, and the oil pulling vehicle 18 is used for providing power for the oil pulling vehicle.
The liquid level meter 5 is an ultrasonic liquid level meter; the pressure transmitter 6 is a wireless pressure transmitter; the gas filter 14 contains a methane adsorbent, a ferric oxycarboxylate and a cleaning agent.
The oil charging control valve 10 installed in the rear cover plate 15 is an aluminum alloy one-way ball valve; the lower end of an oil inlet pipeline connected with the lower end of the oil filling control valve 10 extends to the bottom of the oil pulling tank 19.
The lower end of an oil inlet pipeline connected with the lower end of the oil filling control valve 10 is arranged along the bottom of the oil tank 19.
When the utility model pulls oil in the production field of an oil production well, the tail end of a crane pipe 2 of a storage tank 1 is connected with an oil loading control valve 10 arranged in a rear cover plate 15 through a rotary joint 3 and a high-pressure hose 9. The oil charging control valve 10 is provided with a valve rod switch 16 and a handle 17, and can implement closed oil charging. The front-end tank opening 4 is provided with a liquid level meter 5, a pressure transmitter 6 and a gas recovery quick coupling 7 through a front cover plate, wherein the liquid level meter 5 and the pressure transmitter 6 can realize liquid level detection and pressure detection in the oil pumping tank 19.
Because the sleeve pipe pressure in the oil well is mostly 1.5mpa, draw in the residual gas in the oil jar 19 in the sleeve pipe that normally gets into the production tree, need the pressurization of gaseous booster compressor 13 just to get into the oil well sleeve pipe, gaseous booster compressor 13 utilizes and draws oil truck 18 to provide power, retrieve the hose through the residual gas recovery pipeline 8 of laying in advance and be connected with gas recovery quick-operation joint 7 in the front end jar mouth 4, it squeezes into the oil recovery well through gaseous booster compressor 13 and residual gas recovery pipeline 8 with the residual gas in. The gas booster 13 has a boosting effect on the residual gas at the top of the pull oil tank 19, and the boosted residual gas can be directly conveyed back into the oil production well. The utility model realizes the closed operation of the whole oil drawing process and thoroughly eliminates the environmental pollution caused by the discharge of residual gas.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement and the like made within the spirit and inventive concept of the present invention should be included in the protection scope of the present invention. The scope of protection is therefore not limited to the description above.
Claims (10)
1. The utility model provides a can retrieve tank wagon that draws of residual air, is including drawing the tank wagon and drawing the oil jar, draws the oil jar to fix on drawing the tank wagon, draws the oil jar to be equipped with front end jar mouth and rear end jar mouth, characterized by:
a front cover plate is arranged outside the front-end tank opening, and a liquid level meter, a pressure transmitter and a gas recovery quick connector are arranged in the front cover plate;
a rear cover plate and an oil filling control valve are arranged in the rear end tank opening;
the gas inlet of the gas filter is connected with a gas recovery quick connector through a recovery hose;
the gas outlet of the gas filter is connected with a well site gas recovery pipeline through a treated pipeline;
the other end of the well site gas recovery pipeline is connected with an external gas transmission pipeline.
2. The oil tank lorry capable of recovering residual air as claimed in claim 1, wherein a gas recovery appliance box is further arranged in the body of the oil tank lorry below the oil tank; the gas recovery appliance box is arranged at the end close to the vehicle head of the oil pumping vehicle body.
3. The fuel tank lorry capable of recovering residual gas as claimed in claim 1, wherein the liquid level meter is an ultrasonic liquid level meter; the pressure transmitter is a wireless pressure transmitter.
4. The fuel tank lorry capable of recycling the residual gas as claimed in claim 1, wherein the gas filter contains a methane adsorbent, a carboxyl iron oxide and a cleaning agent.
5. The fuel tank lorry capable of recovering residual gas as claimed in claim 1, wherein the fuel charging control valve installed in the rear cover plate is an aluminum alloy one-way ball valve; the lower end of an oil inlet pipeline connected with the lower end of the oil filling control valve extends to the bottom of the oil tank.
6. The oil pulling tank truck capable of recovering residual gas as claimed in claim 5, wherein the lower end of the oil inlet pipeline connected with the lower end of the oil loading control valve is arranged along the bottom of the oil pulling tank.
7. The utility model provides a can retrieve tank wagon that draws of residual air, is including drawing the tank wagon and drawing the oil jar, draws the oil jar to fix on drawing the tank wagon, draws the oil jar to be equipped with front end jar mouth and rear end jar mouth, characterized by:
a front cover plate is arranged outside the front-end tank opening, and a liquid level meter, a pressure transmitter and a gas recovery quick connector are arranged in the front cover plate;
a rear cover plate and an oil filling control valve are arranged in the rear end tank opening;
the gas inlet of the gas booster is connected with a gas recovery quick connector through a recovery hose;
the gas outlet of the gas booster is connected with a well site gas recovery pipeline through a treated pipeline;
the other end of the well site gas recovery pipeline is connected with the wellhead of the oil production well.
8. The pull-tanker capable of recovering residual gas according to claim 7, wherein the other end of the wellsite gas recovery pipeline is connected to a casing valve at the wellhead of the production well; a gas recovery appliance box is also arranged in the body of the oil pumping vehicle positioned below the oil pumping tank; the gas recovery appliance box is arranged at the end close to the vehicle head of the oil pumping vehicle body, and the gas supercharger is arranged in the gas recovery appliance box.
9. The fuel tank lorry capable of recovering residual gas as claimed in claim 7, wherein an output shaft is connected from an output end of an engine transmission of the fuel tank lorry to an input end of the gas booster.
10. The fuel tank lorry capable of recovering residual gas as claimed in claim 7, wherein the liquid level meter is an ultrasonic liquid level meter; the pressure transmitter is a wireless pressure transmitter; the gas filter is filled with a methane adsorbent, carboxyl ferric oxide and a cleaning agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121931035.9U CN216005208U (en) | 2021-08-18 | 2021-08-18 | Oil tank truck capable of recovering residual gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121931035.9U CN216005208U (en) | 2021-08-18 | 2021-08-18 | Oil tank truck capable of recovering residual gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216005208U true CN216005208U (en) | 2022-03-11 |
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ID=80589162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121931035.9U Active CN216005208U (en) | 2021-08-18 | 2021-08-18 | Oil tank truck capable of recovering residual gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216005208U (en) |
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2021
- 2021-08-18 CN CN202121931035.9U patent/CN216005208U/en active Active
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