CN115532000B - Oil gas recovery device for chemical product intermediate tank - Google Patents
Oil gas recovery device for chemical product intermediate tank Download PDFInfo
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- CN115532000B CN115532000B CN202211477170.XA CN202211477170A CN115532000B CN 115532000 B CN115532000 B CN 115532000B CN 202211477170 A CN202211477170 A CN 202211477170A CN 115532000 B CN115532000 B CN 115532000B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/26—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies rotatable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
Abstract
The invention belongs to the technical field of petrochemical industry, and discloses an oil gas recovery device for a chemical product intermediate tank. The invention changes the increase of oil gas into the change of pressure value through the increased oil gas, forces the piston plate to move upwards by utilizing the gradually increased pressure, forces the oil gas to be discharged after the piston plate reaches a certain position so as to carry out subsequent treatment, avoids the problem that the traditional device directly discharges the oil gas into the atmosphere after the oil gas content increases and forces the pressure in the tank body to increase, can realize that the oil gas is automatically led out for subsequent treatment when reaching a certain content in a relatively closed environment, avoids the direct pollution of the atmosphere and the danger caused by the oil gas in the production link, and is suitable for oil storage places to use.
Description
Technical Field
The invention belongs to the technical field of petrochemical industry, and particularly relates to an oil gas recovery device for a chemical product intermediate tank.
Background
In the process of storing chemical products such as petroleum, a vault tank or a horizontal tank is generally used as a temporary storage tank for tested petroleum products, so the vault tank and the horizontal tank which are used for temporary storage are also called as an intermediate tank and are generally used as temporary storage and intermediate tank bodies of the petroleum products and the like, wherein the vault tank refers to a steel container with a spherical crown-shaped tank top and a cylindrical tank body, the horizontal oil tank is composed of an end cover, a horizontal circular or elliptical tank wall and a saddle and is generally used in a production link or a gas station, the volume of the horizontal oil tank is generally less than 100 cubic meters, the horizontal oil tank is generally circular, elliptical or other irregular shapes, and due to certain volatility of the petroleum products, when the oil quantity in the oil tank is reduced, the oil gas content is increased, namely the oil gas in the oil tank exists frequently, and the oil gas and the air are mixed to have certain explosive property and high danger.
When the oil in the oil tank inside is used gradually, along with the increase of use, the inside liquid oil content of oil tank reduces gradually, and the inside oil gas content of oil tank can increase gradually, in order to prevent the too big oil tank explosion scheduling problem that causes of pressure that causes of oil gas content among the prior art, can install the breather valve on the oil tank, but the breather valve can only increase storage tank gas space's pressure, postpone the oil gas time of discharging to atmosphere, when too big pressure, the breather valve can be opened, oil gas still can be discharged to the atmosphere through the breather valve this moment, obviously still can cause the pollution to the environment, some devices can avoid the detonation phenomenon that oil gas and air contact initiate with oil gas and nitrogen gas mixture, but still can discharge to the atmosphere after oil gas and nitrogen gas mixture and cause the waste of resource, can not satisfy the use.
Along with the constantly platform of environmental protection policy, can handle to the oil gas that discharges to the atmosphere among the prior art, generally adopt filtration and absorbent method to carry out the separation of oil gas and air, reuse desorption technique after oil gas and air separation and carry out the desorption of oil gas and reuse the condensation technique and carry out the condensation, although can effectual oil gas and air separate at this in-process, reach clean emission and the mesh of retrieving, but whole recovery in-process power consumption is higher, when oil gas content is not enough, the required energy of recovery will be not enough to offset the economic effect that the recovery oil gas brought, and high cost, energy utilization is relatively poor.
Disclosure of Invention
The invention aims to provide an oil gas recovery device for a chemical product intermediate tank, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides an oil gas recovery unit for chemical products pans, is including inhaling the material subassembly, the right-hand member intercommunication of inhaling the material subassembly has preliminary separation subassembly, preliminary separation subassembly's top intercommunication has secondary separation subassembly, secondary separation subassembly's right-hand member intercommunication has the desorption subassembly, secondary separation subassembly's rear end intercommunication has the circulating pipe, the middle part fixed mounting of circulating pipe has the condenser, the fixed intercommunication of output of circulating pipe has the backward flow subassembly that is located preliminary separation subassembly below, the output of backward flow subassembly is located the lower right corner of inhaling the material subassembly, inhale material subassembly, preliminary separation subassembly, secondary separation subassembly and desorption subassembly and backward flow subassembly all with be connected between the external frame, inhale the material subassembly and be located the oil storage tank directly over, inhale the material subassembly including inhaling the material jar, the bottom mounting intercommunication that inhales the material jar has the feed inlet, the feed inlet be located the oil storage tank inside and be connected through the flange between the oil storage tank.
When the device is installed, an external frame is needed to be used for completing installation of the device, the stability of the device is needed to be ensured, when the device is used, a feed inlet at the bottom end of the suction tank is needed to be connected with an exhaust port of the storage tank, the bottom end of the feed inlet is needed to be ensured not to be contacted with liquid petroleum, meanwhile, a power supply of the whole device is connected, and preparation work before recovery and installation work of the device are completed.
As a further technical scheme, a piston plate is movably sleeved inside the material suction tank, the diameter of the piston plate is the same as the inner diameter of the material suction tank, a guide rod is fixedly installed in the middle of an inner cavity of the material suction tank, the inside of the piston plate is movably sleeved with the outer side surface of the guide rod, and the piston plate can move up and down relative to the guide rod.
According to a further technical scheme, a guide rod is movably sleeved on the outer side surface of the guide rod, the upper end and the lower end of the guide rod are fixedly connected with the top end of a piston plate and the top end of an inner cavity of a material suction tank respectively, a temporary storage tank is fixedly sleeved on the position, close to the top end, of the outer side surface of the piston plate, discharge chutes located inside the temporary storage tank are formed in the left side and the right side, close to the top end, of the outer side surface of the piston plate, a first material conveying pipe is fixedly communicated with the top end of the temporary storage tank, a one-way valve is fixedly installed at the output end of the first material conveying pipe, and the direction of the valve is outward conducting and inward stopping.
Along with the reduction of the inside liquid oil content of storage tank, the inside oil gas content of storage tank increases gradually, the inside that the oil gas of increase can get into the suction tank through the feed inlet, and along with the increase of oil gas content, the produced pressure of oil gas increases thereupon, the pressure that piston plate bottom bore increases thereupon, the piston plate shifts up with the relative guide bar thereupon, reset spring is compressed this moment, the piston plate shifts up to the suction tank mutually, when oil gas content reachs to a certain extent, the piston plate is lifted to the top of blown down tank this moment, oil gas gets into the inside of keeping in the jar through the blown down tank thereupon this moment, and the inside of getting into primary separation subassembly through first conveying pipeline discharge after carrying out the short time storage in the inside of keeping in the jar is handled.
Through the mobility that utilizes oil gas, and the oil gas that increases gradually changes the increase of oil gas into the pressure value change, utilize the pressure that increases gradually, force the shifting up of piston plate, and make it force the oil gas to discharge after reaching a certain position, in order to carry out subsequent processing, avoid traditional device to force jar problem in the direct emission to the atmosphere after the internal pressure of body increases when oil gas content increases, can realize that oil gas exports when reaching certain content and carries out subsequent processing when airtight environment relatively, avoid oil gas in the danger that produces link direct pollution atmosphere and cause, be fit for the oil storage place and use.
As a further technical scheme, the preliminary separation assembly comprises a power tank, the left end of the power tank is communicated with the other end of the first material conveying pipe through a flange, the right end of the power tank is fixedly communicated with a second material conveying pipe, a main shaft is movably mounted in the power tank, an impeller positioned in the power tank is fixedly mounted on the outer side surface of the main shaft, and the output end of the second material conveying pipe is fixedly communicated with the material conveying tank.
As a further technical scheme, the preliminary separation assembly further comprises a centrifugal separation tank, the material conveying tank is movably sleeved with the centrifugal separation tank, the material conveying tank is communicated with the interior of the centrifugal separation tank, a second transmission shaft is fixedly sleeved on the position, close to the bottom end, of the outer side surface of the centrifugal separation tank, the top end of the main shaft penetrates through the top end of the power tank and is fixedly provided with a first transmission shaft, a transmission belt is movably sleeved on the outer side surface of the first transmission shaft, the other end of the transmission belt is movably sleeved with the outer side surface of the second transmission shaft, and the first transmission shaft is in transmission connection with the second transmission shaft through the transmission belt.
As a further technical scheme, centrifugal holes are formed in the outer side surface of the centrifugal separation tank in a circumferential mode, a first adsorption tank is movably sleeved on the outer side surface of the centrifugal separation tank, the first adsorption tank is connected with an external rack, a waste discharge pipe is fixedly communicated with the top end of the centrifugal separation tank, the top end of the waste discharge pipe penetrates through the first adsorption tank and is located on the outer side surface of the first adsorption tank, discharge holes are formed in the left side and the right side of the top end of the first adsorption tank, and the centrifugal separation tank can rotate relative to the material conveying tank and the first adsorption tank.
When oil gas gets into power jar inside through constrictive first conveying pipeline, because the change of pipe diameter leads to the velocity of flow increase of oil gas, and then can directly promote the impeller to rotate and then drive the main shaft and rotate, oil gas can get into the inside of conveying jar through the second conveying pipeline after promoting the impeller to rotate simultaneously, and flow into centrifugal separation jar inside along with the conveying jar, then can simultaneously drive first transmission shaft when the main shaft is rotatory and rotate and drive the rotation of second transmission shaft through the drive belt, and it is rotatory to drive centrifugal separation jar in step, centrifugal separation jar high-speed rotation produces centrifugal force this moment, because oil density is greater than air density, the oil composition that contains in the oil gas can be thrown away and get into the inside of first adsorption jar through the centrifugation hole, and discharge through the discharge opening, and the air of separating out to contain partial oil can be derived through the escape pipe, accomplish the primary separation process of oil gas.
Utilize centrifugal force to carry out simple separation with oil and air under the effect of high-speed rotation through the difference that utilizes oil density and air density, rotatory power comes from the flow of oil gas simultaneously, utilizes the mobility of self to accomplish the simple separation process of oil gas, accomplishes preliminary treatment, and need not to use extra power source, and resource utilization is higher.
As a further technical scheme, the secondary separation assembly comprises a secondary adsorption tank, a through hole is formed in the bottom end of the secondary adsorption tank, the waste discharge pipe penetrates through the through hole, is located inside the secondary adsorption tank and is communicated with the secondary adsorption tank, the left side and the right side of the bottom end of the secondary adsorption tank are fixedly communicated with communicating pipes, the communicating pipes are communicated with the discharge hole, and a discharge opening is formed in the position, close to the top end, behind the secondary adsorption tank.
As a further technical scheme of the invention, an active fiber membrane is movably mounted at a position close to the bottom end of an inner cavity of the secondary adsorption tank, active carbon positioned above the active fiber membrane is movably mounted in the inner cavity of the secondary adsorption tank, a detachable access cover is movably mounted at the top end of the secondary adsorption tank, and the output end of the discharge outlet is communicated with the input end of the circulating pipe.
The air that contains partial oil through arranging behind the useless pipe separation can directly get into the bottom of active fiber membrane, get into the top of secondary adsorption tank after the adsorption of active fiber membrane and active carbon gets rid of most oil through the adsorption of active fiber membrane again, the bin outlet internal valve is in the closure state this moment in the disengaging process, the oil gas that simultaneously lets in through communicating pipe can get into the bottom of secondary adsorption tank and get into the top of secondary adsorption tank after the oil separation through the adsorption of active fiber membrane and active carbon equally, and the pipeline through the secondary adsorption tank right-hand member gets into the inside of desorption subassembly, accomplish the secondary separation process.
Through the separation processes of preliminary and secondary, can contain the air of partial petroleum material simultaneously adsorption filtration with the oil material in the preliminary filtration oil gas after the separation, oil gas and the oil material in the air separate the absorption when will filtering preliminary, obtain less oil content's air, realize the separation process in the recovery step, and pass through the secondary separation, separation efficiency is higher, is fit for recycling in batches.
As a further technical scheme of the invention, the desorption assembly comprises a waste gas output pipe, the left end of the waste gas output pipe is communicated with the right end of the outer side face of the secondary adsorption tank, a combustion chamber is arranged at the bottom end of the waste gas output pipe, the waste gas output pipe is fixedly communicated with the left side of the top end of the combustion chamber, a water storage tank is fixedly mounted inside the combustion chamber, the bottom end of the water storage tank penetrates through the bottom end of the combustion chamber and is fixedly communicated with a water inlet valve, a pressure relief valve is fixedly communicated with the right side of the top end of the combustion chamber, the top end of the water storage tank penetrates through the combustion chamber and is fixedly communicated with a steam output pipe, the other end of the steam output pipe is communicated with the top end of the secondary adsorption tank, an electromagnetic one-way valve is mounted at the output end of the steam output pipe, a one-way valve is mounted at the output end of the waste gas output pipe, and the directions of the valves are respectively outward conduction and inward cut-off, and inward conduction and outward cut-on.
Air containing a very small amount of petroleum components after being filtered by the secondary separation component can directly enter the combustion chamber through the waste gas output pipe, cold water needs to be injected into the water storage tank through the water inlet valve, the electronic igniter located inside the combustion chamber is opened at the same time, the petroleum part in the air is ignited by electric sparks generated by the electronic igniter to burn, the temperature generated by burning can be absorbed by the cold water inside the water storage tank and enables the cold water to boil, when the temperature sensor inside the water storage tank detects that the water is boiled, the electromagnetic one-way valve of the steam output pipe can be opened, the single-way valve, the communication pipe and the valve of the waste gas output pipe are closed, the oil gas is stopped from entering, high-temperature steam can enter the secondary adsorption tank through the steam output pipe, at the moment, high-normal steam can be reversely acted on the activated carbon and the activated fiber membrane to desorb the activated carbon and remove attached petroleum substances, and when the water inside the water in the water storage tank is completely evaporated, desorption treatment is completed, and the discharge port valve is opened.
Through the secondary separation who utilizes oil gas, and utilize the oil material of few content in the air after the separation, utilize its produced huge heat heating cold water after lighting, and produce the direct reverse action of vapor and adsorb the oil material, accomplish the desorption processing, avoided traditional device to need set up a plurality of devices and carry out the separation and the absorption and the desorption process of oil gas, and the problem of the required more external energy, utilized the air that contains residual petroleum gas, carry out make full use of to it, accomplish the zero release basically when having reduced external energy consumption, make it no longer to discharge the gas that contains petroleum in the atmosphere, realized clean emission when improving resource utilization, be fit for installing in batches and use.
As a further technical scheme, the backflow component comprises a backflow box, the right end of the backflow box is fixedly communicated with the output end of the circulating pipe, the backflow box is located right below the power tank, a speed change gear box is fixedly mounted inside the backflow box, the input end of the speed change gear box is connected with the bottom end of the main shaft, extension shafts are fixedly mounted on the left side and the right side of the output end of the speed change gear box, stop blocks are fixedly mounted on the outer side surfaces of the extension shafts, the height of each stop block is the same as that of an inner cavity of the backflow box, and the outer side surfaces of the stop blocks are attached to the inner side surfaces of the backflow box.
Clean oil gas after accomplishing desorption processing can directly get into the inside of circulating pipe through the bin outlet, and can open the condenser in step and carry out condensation treatment to the oil gas of circulating pipe inside and make it change into liquid, and get into the inside of backward flow subassembly along with the transport of circulating pipe, the rotatory action of main shaft under the oil gas promotion can drive change gear box's input in step simultaneously and rotate, can adjust the rotational speed of change gear box output according to the increase of the inside liquid oil content of storage tank this moment, accessible extension axle drives the dog rotation when change gear box output rotates, and can block the input and the output of backward flow case when two dogs rotate to the left and right sides of backward flow case, close the output of oil, and the rotational speed is slower, the output speed of retrieving oil is slower, otherwise faster, finally accomplish the recovery process in the storage tank through the back flow.
Utilize once more through the mobility to oil gas, utilize the rotatory effect that its produced to make the dog take place the rotation in a circumferential direction, and utilize the recovered oil of dog to block, the interval that utilizes to block changes the output rate of recovering oil, the problem of probably causing storage tank internal pressure too high in the oil that avoids retrieving in the traditional device directly gets into the storage tank, come to make the adaptability adjustment according to jar body pressure through changing output rate, the power source comes from the input of oil gas simultaneously, need not extra power source, energy utilization is high, and can be popularized and used.
The invention has the following beneficial effects:
1. the invention utilizes the mobility of oil gas and the gradually increased oil gas to convert the increase of the oil gas into the change of the pressure value, utilizes the gradually increased pressure to force the piston plate to move upwards and force the oil gas to be discharged after the piston plate reaches a certain position so as to carry out subsequent treatment, avoids the problem that the traditional device directly discharges the oil gas into the atmosphere after the pressure in the tank body is increased due to the increase of the content of the oil gas, can realize that the oil gas is automatically guided out for subsequent treatment when reaching a certain content in a relatively closed environment, avoids the danger caused by the direct pollution of the atmosphere and the direct pollution of the oil gas in the production link, and is suitable for oil storage places.
2. The invention utilizes the secondary separation of oil gas, utilizes the petroleum substance with little content in the separated air, heats cold water by using huge heat generated after the oil gas is ignited, generates vapor to directly and reversely act on the adsorbed petroleum substance, completes desorption treatment, avoids the problems that a plurality of devices are required to be arranged for the separation, adsorption and desorption processes of oil gas and more external energy sources are needed in the traditional device, utilizes the air containing residual petroleum gas, fully utilizes the air, reduces the consumption of external energy sources, basically realizes zero emission, ensures that the air containing petroleum is not discharged into the atmosphere any more, improves the utilization rate of resources, realizes clean discharge at the same time, and is suitable for batch installation and use.
3. The invention utilizes the fluidity of the oil gas again, utilizes the rotation effect generated by the oil gas to enable the stop block to rotate circumferentially, utilizes the recovered oil of the stop block to block, utilizes the blocking interval to change the output speed of the recovered oil, avoids the problem that the pressure in the storage tank is overhigh when the recovered oil in the traditional device directly enters the storage tank, makes adaptive adjustment according to the pressure of the tank body by changing the output speed, simultaneously, the power source is from the input of the oil gas, does not need additional power source, has extremely high energy utilization rate, and can be popularized and used.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a backside structure of the present invention;
FIG. 3 is an isolated cross-sectional view of the construction of the suction assembly of the present invention;
FIG. 4 is an internal cross-sectional view of the construction of the preliminary separation assembly of the present invention;
FIG. 5 is an isolated sectional view of the centrifuge tank configuration of the present invention;
FIG. 6 is a schematic view of the secondary separation module and desorption module of the present invention;
fig. 7 is a sectional view of the internal structure of the desorption assembly of the invention;
FIG. 8 is a schematic view of the mating of the circulation tube and return assembly configuration of the present invention;
fig. 9 is an isolated sectional view of the internal structure of the reflow assembly of the present invention.
In the figure: 1. a material sucking component; 101. a material sucking tank; 102. a feed inlet; 103. a piston plate; 104. a guide bar; 105. a return spring; 106. a discharge chute; 107. a temporary storage tank; 108. a first feed delivery pipe; 2. a preliminary separation assembly; 201. a power tank; 202. a second delivery pipe; 203. a main shaft; 204. an impeller; 205. a first drive shaft; 206. a second drive shaft; 207. a transmission belt; 208. a material conveying tank; 209. a centrifugal separation tank; 2010. a centrifugal hole; 2011. a waste discharge pipe; 2012. a first adsorption tank; 2013. a discharge hole; 3. a secondary separation assembly; 301. a secondary adsorption tank; 302. a communicating pipe; 303. a reactive fiber membrane; 304. activated carbon; 305. a discharge outlet; 4. a desorption assembly; 401. an exhaust gas outlet pipe; 402. a combustion chamber; 403. a water storage tank; 404. a water inlet valve; 405. a pressure relief valve; 406. a steam output pipe; 5. a circulation pipe; 6. a condenser; 7. a reflow assembly; 701. a return tank; 702. a return pipe; 703. a change speed gear box; 704. an extension shaft; 705. and a stop block.
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.
As shown in fig. 1, 2 and 3, in the embodiment of the present invention, an oil gas recovery device for a chemical product intermediate tank includes a material suction assembly 1, a primary separation assembly 2 is communicated with a right end of the material suction assembly 1, a secondary separation assembly 3 is communicated with a top end of the primary separation assembly 2, a desorption assembly 4 is communicated with a right end of the secondary separation assembly 3, a circulation pipe 5 is communicated with a rear end of the secondary separation assembly 3, a condenser 6 is fixedly installed in a middle portion of the circulation pipe 5, a backflow assembly 7 located below the primary separation assembly 2 is fixedly communicated with an output end of the circulation pipe 5, an output end of the backflow assembly 7 is located at a lower right corner of the material suction assembly 1, the primary separation assembly 2, the secondary separation assembly 3, the desorption assembly 4 and the backflow assembly 7 are all connected with an external rack, the material suction assembly 1 is located directly above a petroleum storage tank, the material suction assembly 1 includes a material suction tank 101, a bottom end of the material suction tank 101 is fixedly communicated with a feed inlet 102, and the feed inlet 102 is located inside the petroleum storage tank and connected with the petroleum storage tank through a flange.
When the device is installed, an external frame is needed to be used for completing the installation of the device, the stability of the device is needed to be ensured, when the device is used, the feed inlet 102 at the bottom end of the suction tank 101 is needed to be connected with the exhaust port of the storage tank, the bottom end of the feed inlet 102 is needed to be ensured not to be contacted with liquid petroleum, meanwhile, the power supply of the whole device is connected, and the preparation work before recovery and the installation work of the device are completed.
As shown in fig. 3, a piston plate 103 is movably sleeved inside the material suction tank 101, the diameter of the piston plate 103 is the same as the inner diameter of the material suction tank 101, a guide rod 104 is fixedly installed in the middle of the inner cavity of the material suction tank 101, the inside of the piston plate 103 is movably sleeved with the outer side surface of the guide rod 104, the piston plate 103 can move up and down relative to the guide rod 104, the guide rod 104 is movably sleeved on the outer side surface of the guide rod 104, the upper end and the lower end of the guide rod 104 are respectively fixedly connected with the top end of the piston plate 103 and the top end of the inner cavity of the material suction tank 101, a temporary storage tank 107 is fixedly sleeved on the position of the outer side surface of the piston plate 103 close to the top end, discharge chutes 106 located inside the temporary storage tank 107 are respectively arranged on the left side and the right side of the outer side surface of the piston plate 103 close to the top end, the top end of the temporary storage tank 107 is fixedly communicated with a first material conveying pipe 108, and the output end of the first material conveying pipe 108 is fixedly installed with a one-way valve and the direction of the valve is outwards communicated and inwards stopped.
The first embodiment:
along with the reduction of the content of the liquid petroleum in the storage tank, the content of the oil gas in the storage tank is gradually increased, the increased oil gas can enter the suction tank 101 through the feed inlet 102, the pressure generated by the oil gas is increased along with the increase of the content of the oil gas, the pressure borne by the bottom end of the piston plate 103 is increased along with the increase of the pressure, the piston plate 103 moves upwards relative to the guide rod 104, the reset spring 105 is compressed at the moment, the piston plate 103 moves upwards relative to the suction tank 101, when the content of the oil gas reaches a certain degree, the piston plate 103 is lifted to the upper side of the discharge chute 106 at the moment, the oil gas enters the temporary storage tank 107 through the discharge chute 106 at the moment, and the oil gas is discharged through the first delivery pipe 108 after being temporarily stored in the temporary storage tank 107 to enter the interior of the primary separation assembly 2 for treatment.
Through the mobility that utilizes oil gas, and the oil gas that increases gradually changes the increase of oil gas into the pressure value change, utilize the pressure that increases gradually, force the shifting up of piston plate 103, and make it force the oil gas to discharge after reaching a certain position, in order to carry out subsequent processing, avoid traditional device to force jar problem of direct emission to the atmosphere after the internal pressure of body increases when oil gas content increases, can realize oil gas automatic derivation when reaching certain content under the relatively inclosed environment and carry out subsequent processing, avoid oil gas in the danger that produces link direct pollution atmosphere and cause, be fit for the oil storage place and use.
As shown in fig. 4 and fig. 5, the primary separating assembly 2 includes a power tank 201, a left end of the power tank 201 is communicated with the other end of the first material conveying pipe 108 through a flange, a right end of the power tank 201 is fixedly communicated with a second material conveying pipe 202, a main shaft 203 is movably installed inside the power tank 201, an impeller 204 located inside the power tank 201 is fixedly installed on an outer side surface of the main shaft 203, an output end of the second material conveying pipe 202 is fixedly communicated with a material conveying tank 208, the primary separating assembly 2 further includes a centrifugal separating tank 209, the material conveying tank 208 is movably sleeved with the centrifugal separating tank 209, the material conveying tank 208 is communicated with an inside of the centrifugal separating tank 209, a second transmission shaft 206 is fixedly sleeved on a position, close to a bottom end, of the outer side surface of the centrifugal separating tank 209, a top end of the main shaft 203 penetrates through a top end of the power tank 201 and is fixedly installed with a first transmission shaft 205, drive belt 207 has been cup jointed in the activity of the lateral surface of first transmission shaft 205, the other end of drive belt 207 is cup jointed with the lateral surface activity of second transmission shaft 206, first transmission shaft 205 passes through the drive connection between drive belt 207 and the second transmission shaft 206, centrifugal separation jar 209's the outside is personally submitted the circumference and has been seted up centrifugal hole 2010, centrifugal separation jar 209's lateral surface activity has been cup jointed first adsorption jar 2012, be connected between first adsorption jar 2012 and the outside frame, the fixed intercommunication in top of centrifugal separation jar 209 has the exhaust pipe 2011, the top of exhaust pipe 2011 runs through first adsorption jar 2012 and is located the lateral surface of first adsorption jar 2012, discharge opening 2013 has all been seted up to the left and right sides on first adsorption jar 2012 top, centrifugal separation jar 209 can be defeated material jar 208 and first adsorption jar 2012 relatively and rotate.
When oil gas enters the power tank 201 through the narrow first delivery pipe 108, the flow rate of the oil gas is increased due to the change of the pipe diameter, and then the impeller 204 is directly pushed to rotate so as to drive the spindle 203 to rotate, meanwhile, the oil gas enters the delivery tank 208 through the second delivery pipe 202 after the impeller 204 is pushed to rotate, and flows into the centrifugal separation tank 209 along with the delivery tank 208, the spindle 203 synchronously drives the first transmission shaft 205 to rotate when rotating, and then drives the second transmission shaft 206 to rotate through the transmission belt 207, and synchronously drives the centrifugal separation tank 209 to rotate, at the moment, the centrifugal separation tank 209 rotates at a high speed to generate centrifugal force, because the oil density is greater than the air density, oil components contained in the oil gas can be thrown out through the centrifugal holes 2010 and enter the inside of the first adsorption tank 2012, and are discharged through the discharge holes 2013, and the separated air containing part of the oil can be discharged through the waste pipe 2011, so that the primary separation process of the oil gas is completed.
Through utilizing the difference of oil density and air density to utilize centrifugal force to carry out simple separation with oil and air under the effect of high-speed rotation, rotatory power comes from the flow of oil gas simultaneously, utilizes the mobility of self to accomplish the simple separation process of oil gas, accomplishes preliminary treatment, and need not to use extra power source, and resource utilization is higher.
As shown in fig. 6, the secondary separation assembly 3 includes a secondary adsorption tank 301, a through hole has been seted up to the bottom of secondary adsorption tank 301, waste discharge pipe 2011 runs through the through hole and is located the inside of secondary adsorption tank 301 and is linked together between the secondary adsorption tank 301, both sides all are fixed the intercommunication have communicating pipe 302 about the secondary adsorption tank 301 bottom, be linked together between communicating pipe 302 and discharge opening 2013, discharge opening 305 has been seted up on the position that secondary adsorption tank 301 rear is close to the top, movable mounting has active fiber membrane 303 on the position that secondary adsorption tank 301 inner chamber is close to the bottom, the inner chamber movable mounting of secondary adsorption tank 301 has the active carbon 304 that is located active fiber membrane 303 top, movable mounting has the access cover that can supply the dismantlement on the top of secondary adsorption tank 301, the output of discharge opening 305 is linked together with the input of circulating pipe 5.
The air that contains partial petroleum through arranging waste pipe 2011 after the separation can directly get into the bottom of active fiber membrane 303, get into the top of secondary adsorption tank 301 after most petroleum is got rid of to the adsorption of active fiber membrane 303 and active carbon 304 again, the bin outlet 305 internal valve is in the closed condition this moment in the disengaging process, the oil gas that simultaneously lets in through communicating pipe 302 can get into the bottom of secondary adsorption tank 301 and also get into the top of secondary adsorption tank 301 after the oil separation through the adsorption of active fiber membrane 303 and active carbon 304, and get into the inside of desorption subassembly 4 through the pipeline of secondary adsorption tank 301 right-hand member, accomplish the secondary separation process.
Through the separation process of preliminary and secondary, can adsorb the filtration simultaneously with the air that contains partial petroleum material behind the oil gas of preliminary filtration and the separation, oil gas and the petroleum material in the air separate the absorption when will preliminary filtration, obtain the air of less petroleum content, realize the separation process in the recovery step, and through the secondary separation, separation efficiency is higher, is fit for recycling in batches.
As shown in fig. 6 and 7, the desorption assembly 4 includes a waste gas output pipe 401, a left end of the waste gas output pipe 401 is communicated with a right end of an outer side surface of the secondary adsorption tank 301, a combustion chamber 402 is arranged at a bottom end of the waste gas output pipe 401, the waste gas output pipe 401 is fixedly communicated with a left side of a top end of the combustion chamber 402, a water storage tank 403 is fixedly installed inside the combustion chamber 402, a water inlet valve 404 is fixedly communicated with a bottom end of the water storage tank 403 which penetrates through a bottom end of the combustion chamber 402, a pressure relief valve 405 is fixedly communicated with a right side of the top end of the combustion chamber 402, a steam output pipe 406 is fixedly communicated with a top end of the secondary adsorption tank 301, an electromagnetic check valve is installed at an output end of the steam output pipe 406, a check valve is installed at an output end of the waste gas output pipe 401, directions of the valves are respectively outward conduction, inward cutoff, inward conduction and outward cutoff, an electronic fire maker is installed inside the combustion chamber 402, and a temperature sensor is installed inside the water storage tank 403.
Second embodiment:
after the air containing a very small amount of petroleum components filtered by the secondary separation assembly 3 directly enters the combustion chamber 402 through the waste gas outlet pipe 401, cold water is injected into the water storage tank 403 through the water inlet valve 404, the electronic igniter located inside the combustion chamber 402 is opened at the same time, the electronic igniter generates electric sparks to ignite petroleum components in the air to burn, the temperature generated by burning is absorbed by the cold water inside the water storage tank 403 and promotes the cold water to boil, when the temperature sensor inside the water storage tank 403 detects that the water is boiled, the electromagnetic one-way valve of the steam outlet pipe 406 is opened, the one-way valve, the communicating pipe 302 and the waste discharge pipe 2011 of the waste gas outlet pipe 401 are closed, the oil and gas are stopped from entering, high-temperature steam enters the secondary adsorption tank 301 through the steam outlet pipe 406, at the moment, high positive steam can reversely act on the activated carbon 304 and the activated fiber membrane 303 to perform desorption treatment, adhered petroleum substances are removed, and when the water inside the water storage tank 403 is completely evaporated, the desorption treatment is completed, and the water storage port 305 is opened to perform desorption treatment.
Through the secondary separation who utilizes oil gas, and utilize the oil material of few content in the air after the separation, utilize its produced huge heat heating cold water after lighting, and produce the direct reverse action of vapor and adsorb the oil material, accomplish the desorption processing, avoided traditional device to need set up a plurality of devices and carry out the separation and the absorption and the desorption process of oil gas, and the problem of the required more external energy, utilized the air that contains residual petroleum gas, carry out make full use of to it, accomplish the zero release basically when having reduced external energy consumption, make it no longer to discharge the gas that contains petroleum in the atmosphere, realized clean emission when improving resource utilization, be fit for installing in batches and use.
As shown in fig. 5 and 9, the backflow component 7 includes a backflow tank 701, a right end of the backflow tank 701 is fixedly communicated with an output end of the circulation pipe 5, the backflow tank 701 is located right below the power tank 201, a speed change gear box 703 is fixedly installed inside the backflow tank 701, an input end of the speed change gear box 703 is connected with a bottom end of the main shaft 203, extension shafts 704 are fixedly installed on left and right sides of an output end of the speed change gear box 703, stoppers 705 are fixedly installed on outer side surfaces of the extension shafts 704, heights of the stoppers 705 are the same as heights of an inner cavity of the backflow tank 701, outer side surfaces of the stoppers 705 are attached to the inner side surfaces of the backflow tank 701, and the output end of the backflow pipe 702 is connected with the storage tank.
The third embodiment:
clean oil gas after desorption directly enters the inside of the circulating pipe 5 through the discharge port 305, the condenser 6 can be synchronously opened to condense the oil gas in the circulating pipe 5 to convert the oil gas into liquid, the oil gas enters the inside of the backflow component 7 along with the conveying of the circulating pipe 5, meanwhile, the rotation action of the main shaft 203 under the pushing of the oil gas can synchronously drive the input end of the speed change gear box 703 to rotate, at the moment, the rotation speed of the output end of the speed change gear box 703 can be adjusted according to the increase of the content of liquid oil in the storage tank, when the output end of the speed change gear box 703 rotates, the stopper 705 can be driven to rotate by the extension shaft 704, when the two stoppers 705 rotate to the left side and the right side of the backflow tank 701, the input and the output of the oil can be stopped, and the output speed of the oil is reduced, otherwise, and finally the oil flows back to the storage tank through the backflow pipe 702 to complete the recovery process.
Utilize once more through the mobility to the oil gas, utilize the rotation effect that its produced to make dog 705 take place the circumferential direction rotation, and utilize the recovery oil of dog 705 to block, the interval that utilizes to block changes the output rate of retrieving oil, the problem that can cause the storage tank internal pressure too high in the oil direct entering storage tank of retrieving in the avoided traditional device, come to make adaptability adjustment according to jar body pressure through changing output rate, the power source comes from the input of oil gas simultaneously, need not extra power source, energy utilization is high, and can be popularized and used.
The working principle and the using process are as follows:
along with the reduction of the content of liquid petroleum in the storage tank, the content of oil gas in the storage tank is gradually increased, the increased oil gas enters the suction tank 101 through the feed inlet 102, along with the increase of the content of the oil gas, the pressure generated by the oil gas is increased, the pressure borne by the bottom end of the piston plate 103 is increased, the piston plate 103 moves upwards relative to the guide rod 104, the reset spring 105 is compressed at the moment, the piston plate 103 moves upwards relative to the suction tank 101, when the content of the oil gas reaches a certain degree, the piston plate 103 is lifted to the upper part of the discharge chute 106 at the moment, the oil gas enters the temporary storage tank 107 through the discharge chute 106, and is discharged through the first delivery pipe 108 into the primary separation assembly 2 for processing after being temporarily stored in the temporary storage tank 107;
when oil gas enters the power tank 201 through the narrow first delivery pipe 108, the flow velocity of the oil gas is increased due to the change of the pipe diameter, and then the impeller 204 is directly pushed to rotate so as to drive the spindle 203 to rotate, meanwhile, the oil gas enters the delivery tank 208 through the second delivery pipe 202 after the impeller 204 is pushed to rotate and flows into the centrifugal separation tank 209 along with the delivery tank 208, the spindle 203 synchronously drives the first transmission shaft 205 to rotate when rotating, and then drives the second transmission shaft 206 to rotate through the transmission belt 207 and synchronously drives the centrifugal separation tank 209 to rotate, at this time, the centrifugal separation tank 209 rotates at a high speed to generate centrifugal force, because the oil density is greater than the air density, oil components contained in the oil gas are thrown out through the centrifugal holes 2010 and enter the first adsorption tank 2012 and are discharged through the discharge holes 2013, and the separated air containing part of the oil is discharged through the waste pipe 2011, so that the primary separation process of the oil gas is completed;
the air containing part of petroleum separated by the waste discharge pipe 2011 directly enters the bottom end of the active fiber membrane 303, most of petroleum is removed by the adsorption action of the active fiber membrane 303 and the active carbon 304 and then enters the top end of the secondary adsorption tank 301, at the moment, the valve inside the discharge port 305 is in a closed state in the separation process, meanwhile, the oil gas introduced through the communicating pipe 302 enters the bottom end of the secondary adsorption tank 301, the petroleum is separated by the adsorption of the active fiber membrane 303 and the active carbon 304 and then enters the top end of the secondary adsorption tank 301, and the oil gas enters the inside of the desorption assembly 4 through the pipeline at the right end of the secondary adsorption tank 301, so that the secondary separation process is completed;
after the air containing a very small amount of petroleum components filtered by the secondary separation assembly 3 directly enters the interior of the combustion chamber 402 through the waste gas outlet pipe 401, cold water needs to be injected into the interior of the water storage tank 403 through the water inlet valve 404, meanwhile, the electronic igniter located in the interior of the combustion chamber 402 is opened, electric sparks are generated by the electronic igniter to ignite petroleum components in the air for combustion, the temperature generated by the combustion can be absorbed by the cold water in the water storage tank 403 and causes the cold water to boil, when a temperature sensor in the water storage tank 403 detects that the water boils, the electromagnetic check valve of the steam outlet pipe 406, the single-way valve and the communication pipe 302 of the waste gas outlet pipe 401, and the valve of the waste gas exhaust pipe 2011 can be opened, the oil and gas are stopped from entering, and high-temperature steam enters the interior of the secondary adsorption tank 301 through the steam outlet pipe 406, at this time, high-normal steam can reversely act on the activated carbon 304 and the activated fiber membrane 303 for desorption treatment, and the adhered petroleum substances are removed, and when the water in the interior of the water storage tank 403 is completely evaporated, the discharge port 305 is opened, desorption treatment can be completed, and the desorption treatment can be completed;
clean oil gas after desorption directly enters the inside of the circulating pipe 5 through the discharge port 305, the condenser 6 can be synchronously opened to condense the oil gas in the circulating pipe 5 to be converted into liquid, the oil gas enters the inside of the backflow component 7 along with the conveying of the circulating pipe 5, meanwhile, the input end of the speed change gear box 703 can be synchronously driven to rotate by the rotation action of the main shaft 203 under the pushing of the oil gas, at the moment, the rotation speed of the output end of the speed change gear box 703 can be adjusted according to the increase of the content of liquid oil in the storage tank, when the output end of the speed change gear box 703 rotates, the stopper 705 can be driven to rotate by the extension shaft 704, when the two stoppers 705 rotate to the left side and the right side of the backflow tank 701, the input and the output of the backflow tank 701 can be stopped, the output of the oil is closed, the slower the output speed of the rotation speed is, the slower the output speed of the recovered oil is, otherwise, and finally, the oil flows back to the storage tank through the backflow pipe 702 to complete the recovery process.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (2)
1. The utility model provides an oil gas recovery unit for chemical products pans, is including inhaling material subassembly (1), its characterized in that: the oil-gas separation device is characterized in that the right end of the material suction assembly (1) is communicated with a primary separation assembly (2), the top end of the primary separation assembly (2) is communicated with a secondary separation assembly (3), the right end of the secondary separation assembly (3) is communicated with a desorption assembly (4), the rear end of the secondary separation assembly (3) is communicated with a circulating pipe (5), the middle of the circulating pipe (5) is fixedly provided with a condenser (6), the output end of the circulating pipe (5) is fixedly communicated with a backflow assembly (7) positioned below the primary separation assembly (2), the output end of the backflow assembly (7) is positioned at the lower right corner of the material suction assembly (1), the primary separation assembly (2), the secondary separation assembly (3), the desorption assembly (4) and the backflow assembly (7) are connected with an external machine frame, the material suction assembly (1) is positioned right above the oil storage tank, the material suction assembly (1) comprises a material suction tank (101), the bottom end of the material suction tank (101) is fixedly communicated with a feed inlet (102), the feed inlet (102) is positioned in the oil storage tank and is connected with a flange;
a piston plate (103) is movably sleeved in the suction tank (101), the diameter of the piston plate (103) is the same as the inner diameter of the suction tank (101), a guide rod (104) is fixedly installed in the middle of the inner cavity of the suction tank (101), the inner part of the piston plate (103) is movably sleeved with the outer side surface of the guide rod (104), and the piston plate (103) can move up and down relative to the guide rod (104);
the outer side surface of the guide rod (104) is movably sleeved with the guide rod (104), the upper end and the lower end of the guide rod (104) are fixedly connected with the top end of the piston plate (103) and the top end of the inner cavity of the material suction tank (101) respectively, a temporary storage tank (107) is fixedly sleeved on the position, close to the top end, of the outer side surface of the piston plate (103), discharge chutes (106) located in the temporary storage tank (107) are formed in the left side and the right side, close to the top end, of the outer side surface of the piston plate (103), a first material conveying pipe (108) is fixedly communicated with the top end of the temporary storage tank (107), a one-way valve is fixedly installed at the output end of the first material conveying pipe (108), and the direction of the valve is outward conduction and inward stop;
the primary separation assembly (2) comprises a power tank (201), the left end of the power tank (201) is communicated with the other end of a first material conveying pipe (108) through a flange, the right end of the power tank (201) is fixedly communicated with a second material conveying pipe (202), a main shaft (203) is movably mounted inside the power tank (201), an impeller (204) located inside the power tank (201) is fixedly mounted on the outer side surface of the main shaft (203), and the output end of the second material conveying pipe (202) is fixedly communicated with a material conveying tank (208);
the preliminary separation assembly (2) further comprises a centrifugal separation tank (209), the material conveying tank (208) is movably sleeved with the centrifugal separation tank (209), the material conveying tank (208) is communicated with the inside of the centrifugal separation tank (209), a second transmission shaft (206) is fixedly sleeved on the position, close to the bottom end, of the outer side face of the centrifugal separation tank (209), the top end of the main shaft (203) penetrates through the top end of the power tank (201) and is fixedly provided with a first transmission shaft (205), a transmission belt (207) is movably sleeved on the outer side face of the first transmission shaft (205), the other end of the transmission belt (207) is movably sleeved with the outer side face of the second transmission shaft (206), and the first transmission shaft (205) is in transmission connection with the second transmission shaft (206) through the transmission belt (207);
the outer side surface of the centrifugal separation tank (209) is circumferentially provided with a centrifugal hole (2010), the outer side surface of the centrifugal separation tank (209) is movably sleeved with a first adsorption tank (2012), the first adsorption tank (2012) is connected with an external rack, the top end of the centrifugal separation tank (209) is fixedly communicated with a waste discharge pipe (2011), the top end of the waste discharge pipe (2011) penetrates through the outer side surface of the first adsorption tank (2012) and is positioned on the first adsorption tank (2012), discharge holes (2013) are formed in the left side and the right side of the top end of the first adsorption tank (2012), and the centrifugal separation tank (209) can rotate relative to the material conveying tank (208) and the first adsorption tank (2012);
the secondary separation component (3) comprises a secondary adsorption tank (301), a through hole is formed in the bottom end of the secondary adsorption tank (301), the waste discharge pipe (2011) penetrates through the through hole, is located inside the secondary adsorption tank (301) and is communicated with the secondary adsorption tank (301), the left side and the right side of the bottom end of the secondary adsorption tank (301) are fixedly communicated with communicating pipes (302), the communicating pipes (302) are communicated with the discharge hole (2013), and a discharge port (305) is formed in the position, close to the top end, behind the secondary adsorption tank (301);
an active fiber membrane (303) is movably mounted at a position, close to the bottom end, of an inner cavity of the secondary adsorption tank (301), active carbon (304) located above the active fiber membrane (303) is movably mounted in the inner cavity of the secondary adsorption tank (301), a detachable access cover is movably mounted at the top end of the secondary adsorption tank (301), and the output end of the discharge port (305) is communicated with the input end of the circulating pipe (5);
desorption subassembly (4) include waste gas output tube (401), the left end of waste gas output tube (401) is linked together with the right-hand member of secondary adsorption jar (301) lateral surface, the bottom of waste gas output tube (401) is equipped with combustion chamber (402), waste gas output tube (401) and the fixed intercommunication in left side on combustion chamber (402) top, the inside fixed mounting of combustion chamber (402) has water storage tank (403), the bottom of water storage tank (403) runs through the bottom and the fixed intercommunication of combustion chamber (402) has water intaking valve (404), the right side on combustion chamber (402) top is fixed the intercommunication has relief valve (405), the top of water storage tank (403) runs through combustion chamber (402) and the fixed intercommunication has steam output tube (406), the other end of steam output tube (406) is linked together with the top of secondary adsorption jar (301), the electromagnetism check valve is installed to the output of steam output tube (406), the check valve is installed to the output of waste gas output tube (401), and the direction of valve is outwards switched on and inwards ends and outwards for outwards to communicate respectively.
2. The oil gas recovery device for the chemical product intermediate tank according to claim 1, characterized in that: the backflow component (7) comprises a backflow box (701), the right end of the backflow box (701) is fixedly communicated with the output end of the circulating pipe (5), the backflow box (701) is located under the power tank (201), a speed change gear box (703) is fixedly installed inside the backflow box (701), the input end of the speed change gear box (703) is connected with the bottom end of the main shaft (203), extension shafts (704) are fixedly installed on the left side and the right side of the output end of the speed change gear box (703), a stop block (705) is fixedly installed on the outer side face of each extension shaft (704), the height of each stop block (705) is the same as the height of an inner cavity of the backflow box (701), and the outer side face of each stop block (705) is attached to the inner side face of the backflow box (701).
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| CN212202423U (en) * | 2020-04-02 | 2020-12-22 | 江苏法利沃环保科技有限公司 | Oil gas recovery absorbing device |
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| WO2019214272A1 (en) * | 2018-05-10 | 2019-11-14 | 中冶长天国际工程有限责任公司 | Centralized and independent multi-working condition flue gas purifying treatment system and control method therefor |
| CN111520512A (en) * | 2020-04-30 | 2020-08-11 | 张礼维 | Oil gas recovery conveying pressure control valve |
| CN213596216U (en) * | 2020-08-18 | 2021-07-02 | 宁夏睿源石油化工有限公司 | Oil gas recovery system |
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