CN216909766U - Hollow fiber tubular membrane oil gas purification and recovery system with washing absorption tower - Google Patents
Hollow fiber tubular membrane oil gas purification and recovery system with washing absorption tower Download PDFInfo
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- CN216909766U CN216909766U CN202123015103.XU CN202123015103U CN216909766U CN 216909766 U CN216909766 U CN 216909766U CN 202123015103 U CN202123015103 U CN 202123015103U CN 216909766 U CN216909766 U CN 216909766U
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Abstract
The utility model relates to a hollow fiber tubular membrane oil gas purification and recovery system with a washing absorption tower, and a double-barrel hollow fiber tubular membrane adsorption device is respectively provided with a first hollow fiber tubular membrane barrel and a second hollow fiber tubular membrane barrel, the first hollow fiber tubular membrane barrel is provided with a first area and a second area, the second hollow fiber tubular membrane barrel is provided with a third area and a fourth area, so that oil gas can enter the washing absorption tower through the inlet for washing absorption by conveying the oil gas to the inlet of the washing absorption tower, then the washing oil gas generated after washing absorption is conveyed to the double-barrel hollow fiber tubular membrane adsorption device for washing oil gas adsorption, and the washing oil gas is desorbed by vacuum pressure swing (after being concentrated oil gas, the concentrated oil gas is returned to the inlet of the washing absorption tower or the oil gas conveying pipeline from the other end of a desorption discharge pipeline, the circulation operation can make the oil gas purification and oil gas recovery treatment.
Description
Technical Field
The utility model relates to a hollow fiber tubular membrane oil gas purification and recovery system with a washing absorption tower, in particular to a hollow fiber tubular membrane oil gas purification and recovery system with the efficiency of oil gas purification and oil gas recovery treatment, which can reach 97 percent or even more than 99 percent and is suitable for gas stations, underground oil storage tanks or similar areas.
Background
At present filling station can wave oil gas for the car in-process of refueling, and present way is buried underground in this tanker aircraft below and is equipped with the interior vapor recovery pipeline of tanker aircraft, and the other end of the interior vapor recovery pipeline of this tanker aircraft then is connected with this underground oil groove to wave in-process oil gas through vacuum auxiliary oil vapor recovery equipment and collect in the oil groove under the oil through the interior vapor recovery pipeline of this tanker aircraft, in order to reach the vapor collection purpose.
Above-mentioned carry the underground oil groove with oil gas in, and the oil of underground oil groove still can wave oil gas when storing, and when storing a period after, the oil gas in this underground oil groove can produce pressure gradually, consequently, this underground oil groove all is equipped with pressure valve and breather pipe, when the produced pressure of oil gas is greater than the value that the pressure valve set for, this pressure valve can be opened and discharge to the air through the breather pipe, let the produced pressure of oil gas in the underground oil groove get back to safe value, avoid producing danger. In addition, in the gasoline and diesel oil tank truck of the oil company or the large oil storage tank of the gasoline and diesel oil tank truck, the oil loading and unloading process generates exhaust gas which has very concentrated volatile organic gases and the concentration of the volatile organic gases can reach 60g/Nm3, 300g/Nm3 or higher.
However, the oil gas discharged from the underground oil tank through the breathing tube is likely to cause great influence on the environment, and besides polluting the surrounding air, the underground oil tank also has potential safety hazards and dangers when the concentration of the oil gas discharged from the breathing tube is too high.
Therefore, in view of the above disadvantages, a hollow fiber tubular membrane oil gas purification and recovery system with washing absorption tower is proposed, which has the efficiency of oil gas purification and oil gas recovery process, so that the assembly can be easily performed by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a hollow fiber tubular membrane oil gas purification and recovery system with a washing absorption tower, wherein the double-barrel hollow fiber tubular membrane adsorption apparatus is divided into a first hollow fiber tubular membrane barrel and a second hollow fiber tubular membrane barrel, the first hollow fiber tubular membrane barrel is provided with a first region and a second region, the second hollow fiber tubular membrane barrel is provided with a third region and a fourth region, so as to convey oil gas to the inlet of the washing absorption tower, so that the oil gas can enter the washing absorption tower through the inlet for washing absorption, and then convey the washing oil gas generated after washing absorption to the double-barrel hollow fiber tubular membrane adsorption apparatus for washing oil gas adsorption, and the washing oil gas is desorbed into concentrated oil gas by Vacuum (VRU), and then return the concentrated oil gas from the other end of the desorption discharge pipeline to the inlet of the washing absorption tower or the oil gas conveying pipeline, the circulation operation has the efficiency of oil gas purification and oil gas recovery treatment, thereby increasing the overall practicability.
Another objective of the present invention is to provide a hollow fiber tubular membrane oil gas purification and recovery system with a washing and absorption tower, wherein at least one absorbent and at least one absorption tower filler are disposed in the washing and absorption tower, so that the washing and absorption tower can absorb the oil gas through the absorbent, and a circulation pipeline is disposed through the washing and absorption tower, one end of the circulation pipeline is connected to the at least one absorbent of the washing and absorption tower, and the other end of the circulation pipeline extends into the upper portion of the at least one absorption tower filler of the washing and absorption tower, and the other end of the circulation pipeline is disposed with at least one spray head, so that the absorbent with the oil gas can be sprayed on the absorption tower filler through the circulation pipeline, so that the oil gas has the effect of recycling and absorption, thereby increasing the overall usability of the system.
The utility model provides a hollow fiber tubular membrane oil gas purification and recovery system with a washing absorption tower, wherein oil gas is conveyed from the other end of the oil gas conveying pipeline to an inlet of the washing absorption tower, so that the oil gas can enter the washing absorption tower through the inlet for washing and absorption, and then washing oil gas generated after washing and absorption by the washing absorption tower can be output to the double-barrel hollow fiber tubular membrane adsorption equipment through the washing exhaust pipeline for washing oil gas adsorption, so that the oil gas has the efficiency of secondary purification and recovery, and the overall operability is further improved.
For a better understanding of the nature, features and aspects of the present invention, reference should be made to the following detailed description of the utility model, taken in conjunction with the accompanying drawings which are provided for purposes of illustration and description only and are not intended to be limiting.
Drawings
Fig. 1 is a schematic diagram of a system architecture of a first hollow fiber tubular membrane cartridge set to an adsorption mode and returned to an oil and gas transmission pipeline according to the present invention.
Fig. 2 is a schematic diagram of a system architecture of a second hollow fiber tubular membrane cartridge of the present invention set to an adsorption mode and returned to an oil and gas transmission pipeline.
Fig. 3 is a schematic diagram of the system architecture of the first hollow fiber tubular membrane drum of the present invention set to adsorption mode and returned to the inlet of the scrubbing absorber.
Fig. 4 is a schematic diagram of the system architecture of the second hollow fiber tubular membrane drum of the present invention set to adsorption mode and returned to the inlet of the scrubbing absorber.
The reference numbers illustrate:
10. a first hollow fiber tubular membrane barrel 20 and a second hollow fiber tubular membrane barrel
101. First region 201 and third region
102. Second region 202, fourth region
103. Hollow fiber tube type membrane adsorbent 203 and hollow fiber tube type membrane adsorbent
11. First pipeline 21 and third pipeline
111. First extension pipeline 211 and third extension pipeline
1111. First extension valve 2111 and third extension valve
1112. First 2112 and third valve
12. Second pipeline 22, fourth pipeline
121. A second extension pipeline 221 and a fourth extension pipeline
1211. Second extension valve 2211, fourth extension valve
1212. Second and fourth extension limiting valves 2212 and 2212
13. A first vacuum pump extraction port 23 and a second vacuum pump extraction port
30. Air inlet communicating pipeline 31 and first air inlet valve
33. Third air inlet valve 40 and air outlet communicating pipeline
41. First air outlet valve 42 and second air outlet valve
50. Exhaust communicating pipe 52 and second exhaust valve
54. Fourth exhaust valve 60, scrubbing-absorption tower
601. Absorbent 602 and absorption tower packing
61. Inlet 62, wash exhaust line
63. Circulation pipeline 631 and circulation pump
64. Sprinkler 70, oil gas conveying pipeline
80. Desorption discharge line 801 and vacuum pump
90. Exhaust gas transfer line 91, chimney
Detailed Description
Fig. 1 to 4 are schematic views of an embodiment of the present invention. The best mode of the hollow fiber tubular membrane oil gas purification and recovery system with the washing absorption tower is applied to gas stations, underground oil storage tanks or similar areas, mainly has the efficiency of oil gas purification and oil gas recovery treatment, and the efficiency can reach 97 percent or even more than 99 percent.
The utility model relates to a hollow fiber tubular membrane oil gas purification and recovery system with a washing absorption tower, which mainly comprises a double-barrel hollow fiber tubular membrane adsorption device 1, a washing absorption tower 60, an oil gas conveying pipeline 70, a desorption discharge pipeline 80 and a discharge conveying pipeline 90 (shown in figures 1 to 4), the double-barrel type hollow fiber tubular membrane adsorption equipment 1 is respectively provided with a first hollow fiber tubular membrane barrel 10 and a second hollow fiber tubular membrane barrel 20, the first hollow fiber tubular membrane cartridge 10 is provided with a first region 101 and a second region 102, a gap is arranged between the first area 101 and the second area 102, and the first area 101 and the second area 102 are respectively filled with a plurality of tubular hollow fiber tubular membrane adsorbing materials 103, wherein a first vacuum pump suction port 13 is formed in a gap between the first region 101 and the second region 102. The second hollow fiber tubular membrane barrel 20 is provided with a third area 201 and a fourth area 202, a gap is provided between the third area 201 and the fourth area 202, and the third area 201 and the fourth area 202 are respectively filled with a plurality of tubular hollow fiber tubular membrane adsorbing materials 203, wherein a second vacuum pump extraction port 23 is provided in the gap between the third area 201 and the fourth area 202. And an air outlet communicating pipeline 40 is arranged between the first vacuum pump extraction port 13 and the second vacuum pump extraction port 23.
The tubular hollow fiber tubular membrane adsorbing materials 103 and 203 are made of a polymer and an adsorbent, and the polymer is at least one group of Polysulfone (PSF), Polyethersulfone (PESF), polyvinylidene fluoride (PVDF), polyphenylsulfone (PPSU), polyacrylonitrile (polyacrylonitrile), cellulose acetate, cellulose diacetate, Polyimide (PI), polyetherimide, polyamide, polyvinyl alcohol, polylactic acid, polyglycolic acid, polylactic-co-glycolic acid (pla-co-glycolic acid), polycaprolactone, polyvinyl pyrrolidone (pvpynolidone), ethylene vinyl alcohol (ethylene vinyl alcohol), polydimethylsiloxane, polytetrafluoroethylene (ptfe), and Cellulose Acetate (CA). The diameters and the outer diameters of the prepared tubular hollow fiber tubular membrane adsorption materials 103 and 203 are more than 0.5mm, so that the tubular hollow fiber tubular membrane adsorption materials have high specific surface areas, are easy to adsorb and desorb, the dosage of the adsorbent is smaller than that of the traditional particle type, the same dynamic adsorption efficiency can be achieved, and the desorption can be completed by using less heat energy naturally during desorption, so that the energy-saving effect is achieved.
The ratio of the adsorbent in the tubular hollow fiber tubular membrane adsorbing materials 103, 203 (as shown in fig. 1 to 4) is 10% -90%, and the adsorbent is powder, the particles of the powder have a particle size of 0.005-50 um, and the particles of the powder have a two-dimensional or three-dimensional pore structure, and the pores are regular or irregular, wherein the adsorbent is at least one group selected from the group consisting of molecular sieves, a-type zeolites (such as 3A, 4A or 5A), X-type zeolites (such as 13X), Y-type zeolites (such as ZSM-5), mesoporous molecular sieves (such as MCM-41, 48, 50 and SBA-15), Metal Organic Frameworks (MOF), activated carbon or graphene.
A first hollow fiber tubular membrane drum 10 of the double-drum hollow fiber tubular membrane adsorption apparatus 1 is provided with a first pipeline 11 and a second pipeline 12, a second hollow fiber tubular membrane drum 20 of the double-drum hollow fiber tubular membrane adsorption apparatus 1 is provided with a third pipeline 21 and a fourth pipeline 22 (as shown in fig. 1 to 4), an air inlet communication pipeline 30 is respectively provided between the first pipeline 11 of the first hollow fiber tubular membrane drum 10 and the third pipeline 21 of the second hollow fiber tubular membrane drum 20, an air outlet communication pipeline 50 is provided between the second pipeline 12 of the first hollow fiber tubular membrane drum 10 and the fourth pipeline 22 of the second hollow fiber tubular membrane drum 20, wherein the air inlet communication pipeline 30 is provided with a first air inlet valve 31 and a third air inlet valve 33, the first air inlet valve 31 is close to the first pipeline 11, and the third air inlet valve 33 is close to the third pipeline 21, the gas flow direction in the gas inlet communication pipeline 30 can be controlled by the first gas inlet valve 31 and the third gas inlet valve 33, the gas outlet communication pipeline 40 is provided with a first gas outlet valve 41 and a second gas outlet valve 42, the first gas outlet valve 41 is close to the first vacuum pump extraction port 13, the second gas outlet valve 42 is close to the second vacuum pump extraction port 23, the gas flow direction in the gas outlet communication pipeline 40 can be controlled by the first gas outlet valve 41 and the second gas outlet valve 42, the gas exhaust communication pipeline 50 is provided with a second gas exhaust valve 52 and a fourth gas exhaust valve 54, the second gas exhaust valve 52 is close to the second pipeline 12, and the fourth gas exhaust valve 54 is close to the fourth pipeline 22, so that the gas flow direction in the gas exhaust communication pipeline 50 can be controlled by the second gas exhaust valve 52 and the fourth gas exhaust valve 54.
The first pipeline 11 of the first hollow fiber tubular membrane drum 10 is connected to a first extending pipeline 111, the first extending pipeline 111 is provided with a first extending valve 1111 and a first extending flow-limiting valve 1112 (as shown in fig. 1 to 4), the gas flow direction in the first extending pipeline 111 is controlled by the first extending valve 1111, and the gas in the first extending pipeline 111 is limited from flowing out from the other end by the first extending flow-limiting valve 1112. The second pipeline 12 of the first hollow fiber tubular membrane barrel 10 is connected to a second extending pipeline 121, the second extending pipeline 121 is provided with a second extending valve 1211 and a second extending flow-limiting valve 1212 (as shown in fig. 1 to 4), the gas flow direction in the second extending pipeline 121 is controlled by the second extending valve 1211, and the gas in the second extending pipeline 121 is limited to flow out from the other end by the second extending flow-limiting valve 1212. In addition, the third pipeline 21 of the second hollow fiber tubular membrane cartridge 20 is connected to a third extending pipeline 211, the third extending pipeline 211 is provided with a third extending valve 2111 and a third extending flow-limiting valve 2112 (as shown in fig. 1 to 4), the gas flow direction in the third extending pipeline 211 is controlled by the third extending valve 2111, and the gas in the third extending pipeline 211 is limited from the other end by the third extending flow-limiting valve 2112. The fourth pipeline 22 of the second hollow fiber tubular membrane barrel 20 is connected to a fourth extending pipeline 221, the fourth extending pipeline 221 is provided with a fourth extending valve 2211 and a fourth extending flow-limiting valve 2212 (as shown in fig. 1 to 4), the gas flow direction in the fourth extending pipeline 221 is controlled by the fourth extending valve 2211, and the gas in the fourth extending pipeline 221 is limited by the fourth extending flow-limiting valve 2212 to flow out from the other end.
The washing absorption tower 60 is provided with an inlet 61 and a washing exhaust pipeline 62 (as shown in fig. 1 to 4), and one end of the oil gas transmission pipeline 70 is connected to an oil gas generation place (not shown), wherein the oil gas generation place is any one of oil gas (disposable oil gas) in an oil unloading process of a tank truck, oil gas (secondary oil gas) in an oil adding process and oil gas (tertiary oil gas) exhaled by an underground oil tank, and the other end of the oil gas transmission pipeline 70 is connected with the inlet 61 of the washing absorption tower 60 (as shown in fig. 1 to 4), so that the oil gas can enter the washing absorption tower 60 through the inlet 61 for washing absorption.
The washing absorption tower 60 is provided with at least one absorbent 601 and at least one absorption tower packing 602 (as shown in fig. 1 to fig. 4), wherein the absorbent 601 is disposed below the washing absorption tower 60, the absorbent 601 is a liquid, the diesel oil is adopted in the utility model, so that oil gas entering from the inlet 61 of the washing absorption tower 60 can be washed by the diesel oil, and the absorbent 601 can also be other liquid capable of being sufficiently contacted, so as to improve the absorption efficiency of the absorbent. In addition, the absorber 602 is disposed in the middle of the scrubber 60, and the absorber 602 is mainly used to increase the contact area between the liquid and the gas flow, so as to increase the reaction absorption surface area, wherein the absorber 602 is raschig ring intalox saddle packing or corrugated packing, which can provide a large gas-liquid contact surface, so that the absorber 602 can be easily wetted by the liquid, and only the wetted surface is the gas-liquid contact surface. The absorber packing 602 has a random packing (stacked packing) mode and a regular packing (stacked packing) mode, so that the gas and the liquid have sufficient contact opportunities.
The washing and absorbing tower 60 is provided with a circulating pipeline 63 (as shown in fig. 1 to 4), one end of the circulating pipeline 63 is connected to the lower part of the washing and absorbing tower 60, that is, the position of the absorbent 601, and the other end of the circulating pipeline 63 extends into the upper part of the washing and absorbing tower 60, that is, the upper part of the absorbing tower filler 602, the other end of the circulating pipeline 63 is provided with at least one spraying head 64 (as shown in fig. 1 to 4), so that the absorbent 601 located at the lower part of the washing and absorbing tower 60 can be conveyed to the upper part of the washing and absorbing tower 60 through the circulating pipeline 63, and sprayed downward from the upper part of the washing and absorbing tower 60 by the spraying head 64, so as to flow through the absorbing tower filler 602 located at the middle part of the washing and absorbing tower 60, so that the absorbing tower filler 602 can be adhered with a film (not shown), when the gas passes through the gap of the absorbing tower filler 602, can be absorbed by the adhesive layer film and removed. The circulation pipeline 63 is provided with a circulation pump 631 (as shown in fig. 1 to 4) to push the absorbent 601 from one end of the circulation pipeline 63 to the other end of the circulation pipeline 63, so as to have a pushing effect.
In addition, after the oil gas is washed and absorbed by the washing and absorbing tower 60, washing oil gas is generated, and the washing oil gas is output through the washing exhaust pipeline 62, wherein one end of the scrubbing exhaust pipe 62 is connected to the scrubbing absorption tower 60, the other end of the scrubbing exhaust pipe 62 is connected to the intake air communicating pipe 30 (as shown in fig. 1 to 4), so as to convey the washing oil gas in the washing exhaust pipeline 62 to the air intake communicating pipeline 30, and then the first air intake valve 31 and the third air intake valve 33 respectively control the switch, so that the washing oil gas can pass through the air intake communicating pipeline 30, the first pipeline 11 and the second pipeline 11 to enter the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 for washing oil gas adsorption, or through the third pipeline 21 via the inlet communication pipeline 30 to enter the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 for washing oil gas adsorption.
One end of the desorption discharge pipeline 80 is connected to the vent communication pipeline 40, and the desorption discharge pipeline 80 is provided with a vacuum pump 801 (as shown in fig. 1 to 4), and the vacuum pump 801 can make the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 perform vacuum desorption on the adsorbed washing oil gas to obtain concentrated oil gas through a Vacuum Swing Adsorption (VSA) mode, or the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 perform vacuum desorption on the adsorbed washing oil gas to obtain concentrated oil gas, and then the concentrated oil gas desorbed in the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 can be respectively output to the vent communication pipeline 40 through the first vacuum pump extraction port 13 and be conveyed to the desorption discharge pipeline 80 through the vent communication pipeline 40, or the concentrated oil gas desorbed in the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane barrel 20 can be output into the gas outlet communication pipeline 40 through the second vacuum pump extraction port 23 and conveyed to the desorption discharge pipeline 80 through the gas outlet communication pipeline 40 (as shown in fig. 1 to 4), while the vacuum pump 801 can push the concentrated oil gas output from the gas outlet communication pipeline 40 to the other end of the desorption discharge pipeline 80 through the desorption discharge pipeline 80.
The other end of the desorption discharge pipeline 80 has two concentrated oil-gas returning embodiments, wherein the first concentrated oil-gas returning embodiment is that the other end of the desorption discharge pipeline 80 is connected to the oil-gas conveying pipeline 70 (as shown in fig. 1 and 3) to return the concentrated oil-gas in the desorption discharge pipeline 80 to the oil-gas conveying pipeline 70. In the second embodiment of returning the enriched oil gas, the other end of the desorption discharge line 80 is connected to the inlet 61 of the scrubber 60 (as shown in fig. 2 and 4) to return the enriched oil gas in the desorption discharge line 80 to the scrubber 60. The two embodiments of returning the concentrated oil gas mainly perform vacuum desorption on the first region 101 and the second region 102 of the first hollow fiber tubular membrane barrel 10 to obtain the concentrated oil gas, or perform vacuum desorption on the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane barrel 20 to obtain the concentrated oil gas which can be conveyed back to the oil gas conveying pipeline 70 or conveyed back to the inlet 61 of the washing absorption tower 60 through the desorption discharge pipeline 80, so that the concentrated oil gas can be mixed with the oil gas in the oil gas conveying pipeline 70 or the oil gas in the inlet 61 of the washing absorption tower 60 and then enter the washing absorption tower 60 for washing absorption again.
The exhaust communicating pipe 50 is connected to one end of the exhaust gas conveying pipe 90, and the other end of the exhaust gas conveying pipe 90 has two embodiments, wherein the first embodiment is that the other end of the exhaust gas conveying pipe 90 is connected to a chimney 91 (as shown in fig. 1 and 3), and the second embodiment is that the other end of the exhaust gas conveying pipe 90 is conveyed to the atmosphere (as shown in fig. 2 and 4). Therefore, the purge gas generated after the first region 101 and the second region 102 of the first hollow fiber tubular membrane cartridge 10 are subjected to the adsorption of the washing oil gas can be output into the exhaust gas communication pipe 50 through the second pipe 12 and then the purge gas is discharged through the other end of the exhaust gas delivery pipe 90, or the purge gas generated after the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane cartridge 20 are subjected to the adsorption of the washing oil gas can be output into the exhaust gas communication pipe 50 through the fourth pipe 22 and then the purge gas is discharged through the other end of the exhaust gas delivery pipe 90.
In addition, in practical operation, the first region 101 and the second region 102 of the first hollow fiber tubular membrane tank 10 and the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane tank 20 of the dual-tank hollow fiber tubular membrane adsorption apparatus 1 mainly have different options of the adsorption mode and the desorption mode, wherein the first implementation option is set by time (not shown), for example, set to 10 minutes (not limited by this embodiment), when the time is up, the first region 101 and the second region 102 of the first hollow fiber tubular membrane tank 10, which are originally in the adsorption mode, are changed to the desorption mode, and the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane tank 20, which are originally in the desorption mode, are changed to the adsorption mode. In the second embodiment, the concentration setting (not shown) is performed, and a concentration detector (not shown) is disposed through the exhaust gas conveying pipeline 90, so that the first hollow fiber tubular membrane cartridge 10 and the second hollow fiber tubular membrane cartridge 20 can switch between the adsorption mode and the desorption mode according to the concentration detected by the concentration detector.
When the first area 101 and the second area 102 of the first hollow fiber tubular membrane drum 10 are set to the adsorption mode (as shown in fig. 1 and 3), the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane drum 20 are set to the desorption mode, wherein the first air intake valve 31 disposed on the air intake communication pipeline 30 and close to the first pipeline 11 is in the open state (as shown in fig. 1 and 3), so that the washing oil gas can flow through the first air intake valve 31 of the air intake communication pipeline 30 through the first pipeline 11 and enter the first area 101 and the second area 102 of the first hollow fiber tubular membrane drum 10 for washing oil gas adsorption, and the third air intake valve 33 disposed on the air intake communication pipeline 30 and close to the third pipeline 21 is in the closed state. The second exhaust valve 52 disposed on the exhaust communication pipeline 50 and close to the second pipeline 12 is opened (as shown in fig. 1 and 3), so that the purified gas generated after the absorption of the washing oil in the first region 101 and the second region 102 of the first hollow fiber tubular membrane drum 10 flows through the second exhaust valve 52 of the exhaust communication pipeline 50 through the second pipeline 12, enters the exhaust delivery pipeline 90, and is discharged from the other end of the exhaust delivery pipeline 90, and the fourth exhaust valve 54 disposed on the exhaust communication pipeline 50 and close to the fourth pipeline 22 is closed.
In addition, the desorption discharge pipeline 80 has a vacuum pump 801, when the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane drum 20 are subjected to vacuum pressure swing (VSA) desorption and vacuum desorption, the second gas outlet valve 42 disposed on the gas outlet communication pipeline 40 and close to the second vacuum pump extraction port 23 is opened (as shown in fig. 1 and 3), so that the adsorbed washing oil gas is desorbed into concentrated oil gas in the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane drum 20, and the concentrated oil gas flows through the second gas outlet valve 42 of the gas outlet communication pipeline 40 through the second vacuum pump extraction port 23, enters the desorption discharge pipeline 80, and is conveyed into the oil gas conveying pipeline 70 (as shown in fig. 1) or the inlet 61 of the washing absorption tower 60 (as shown in fig. 3) for washing absorption again, and a first gas outlet valve 41 disposed on the gas outlet communication pipeline 40 and close to the first vacuum pump extraction port 13 is in a closed state.
On the contrary, when the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 are set to the adsorption mode (as shown in fig. 2 and 4), the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 are set to the desorption mode, wherein the third air intake valve 33 disposed on the air intake communication pipeline 30 and close to the third pipeline 21 is in the open state (as shown in fig. 2 and 4), so that the washing oil gas can flow through the third air intake valve 33 of the air intake communication pipeline 30 and enter the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 for washing oil gas adsorption after flowing through the third pipeline 21, and the first air intake valve 31 disposed on the air intake communication pipeline 30 and close to the first pipeline 11 is in the closed state. The fourth exhaust valve 54 disposed on the exhaust communication pipeline 50 and close to the fourth pipeline 22 is opened (as shown in fig. 2 and 4), so that the purge gas generated after the adsorption of the washing oil in the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane drum 20 flows through the fourth exhaust valve 54 of the exhaust communication pipeline 50 through the fourth pipeline 22, enters the exhaust delivery pipeline 90, and is discharged from the other end of the exhaust delivery pipeline 90, and the second exhaust valve 52 disposed on the exhaust communication pipeline 50 and close to the second pipeline 12 is closed.
In addition, the desorption discharge pipeline 80 has a vacuum pump 801, when the first region 101 and the second region 102 of the first hollow fiber tubular membrane drum 10 are subjected to Vacuum Swing Adsorption (VSA) desorption and vacuum pumping is performed for desorption, the first vacuum pump extraction port 13 disposed on the gas outlet communication pipeline 40 and close to the first pipeline 11 is opened (as shown in fig. 2 and 4), so that the adsorbed washing oil gas in the first region 101 and the second region 102 of the first hollow fiber tubular membrane drum 10 is desorbed into concentrated oil gas, and flows through the first gas outlet valve 41 of the gas outlet communication pipeline 40 through the first vacuum pump extraction port 13, enters the desorption discharge pipeline 80, and is then conveyed into the oil gas conveying pipeline 70 (as shown in fig. 2) or the inlet 61 of the washing absorption tower 60 (as shown in fig. 4) for washing absorption again, and a second gas outlet valve 42 disposed on the gas outlet communication pipeline 40 and close to the second vacuum pump extraction port 23 is in a closed state.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the utility model; therefore, all the equivalent changes and modifications made according to the protection scope of the present application and the contents of the specification of the present invention should be covered by the protection scope of the present patent application.
Claims (17)
1. A hollow fiber tubular membrane oil gas purification and recovery system with a washing absorption tower is characterized by comprising:
a double-barrel type hollow fiber tubular membrane adsorption device is provided with a first hollow fiber tubular membrane barrel and a second hollow fiber tubular membrane barrel, wherein the first hollow fiber tubular membrane barrel is provided with a first area and a second area, the first area and the second area are respectively filled with a plurality of tubular hollow fiber tubular membrane adsorption materials, a first vacuum pump extraction port is arranged between the first area and the second area, the first hollow fiber tubular membrane barrel is provided with a first pipeline and a second pipeline, the second hollow fiber tubular membrane barrel is provided with a third area and a fourth area, the third area and the fourth area are respectively filled with a plurality of tubular hollow fiber tubular membrane adsorption materials, a second vacuum pump extraction port is arranged between the third area and the fourth area, the second hollow fiber tubular membrane barrel is provided with a third pipeline and a fourth pipeline, an air inlet communicating pipeline is arranged between the first pipeline and the third pipeline, an air exhaust communicating pipeline is arranged between the second pipeline and the fourth pipeline, and an air outlet communicating pipeline is arranged between the first vacuum pump extraction port and the second vacuum pump extraction port;
the washing absorption tower is provided with an inlet and a washing exhaust pipeline, one end of the washing exhaust pipeline is connected with the washing absorption tower, and the other end of the washing exhaust pipeline is connected with the air inlet communicating pipeline;
one end of the oil gas conveying pipeline is connected to an oil gas generating position, and the other end of the oil gas conveying pipeline is connected with an inlet of the washing absorption tower;
a desorption discharge pipeline, one end of which is connected with the gas outlet communication pipeline, wherein a vacuum pump is arranged on the desorption discharge pipeline; and
one end of the exhaust conveying pipeline is connected with the exhaust communicating pipeline.
2. The hollow fiber tubular membrane oil and gas purification and recovery system with the scrubbing and absorption tower as claimed in claim 1, wherein the other end of the desorption discharge pipeline is further connected with the inlet of the scrubbing and absorption tower.
3. The hollow fiber tubular membrane oil-gas purification and recovery system with the washing absorption tower as claimed in claim 1, wherein the other end of the desorption discharge pipeline is further connected with the oil-gas transmission pipeline.
4. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrubbing-absorption tower as claimed in claim 1, wherein the other end of the exhaust gas delivery pipe is further connected to a chimney.
5. The hollow fiber tubular membrane oil and gas purification and recovery system with scrubbing and absorption tower as claimed in claim 1, wherein the other end of the exhaust gas delivery line is also delivered to the atmosphere.
6. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrubbing-absorption tower of claim 1, wherein the inlet communication pipeline further comprises a first inlet valve and a third inlet valve.
7. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrubbing-absorption tower of claim 1, wherein the gas outlet communication pipeline further comprises a first gas outlet valve and a second gas outlet valve.
8. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrubbing-absorption tower of claim 1, wherein the exhaust communication pipeline further comprises a second exhaust valve and a fourth exhaust valve.
9. The hollow fiber tubular membrane oil and gas purification and recovery system with the scrub absorption tower of claim 1, wherein the first pipeline is further connected to a first extension pipeline, the first extension pipeline further having a first extension valve and a first extension limiting valve.
10. The hollow fiber tubular membrane oil and gas purification and recovery system with washing absorption tower as claimed in claim 1, wherein the second pipeline is further connected to a second extension pipeline, the second extension pipeline is further provided with a second extension valve and a second extension flow limiting valve.
11. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrubbing-absorption tower of claim 1, wherein the third pipeline is further connected to a third extension pipeline, and the third extension pipeline is further provided with a third extension valve and a third extension flow-limiting valve.
12. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrubbing-absorption tower of claim 1, wherein the fourth pipeline is further connected to a fourth extension pipeline, and the fourth extension pipeline is further provided with a fourth extension valve and a fourth extension flow-limiting valve.
13. The hollow fiber tubular membrane oil and gas purification and recovery system with the washing absorption tower as claimed in claim 1, wherein at least one absorbent is further arranged in the washing absorption tower, and the absorbent is diesel oil.
14. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrub absorption tower as recited in claim 1 wherein the scrub absorption tower is further provided with at least one absorption tower packing.
15. The hollow fiber tubular membrane oil gas purification and recovery system with the washing absorption tower as claimed in claim 1, wherein the washing absorption tower is further provided with a circulation pipeline, and the other end of the circulation pipeline is provided with at least one sprinkler head.
16. The hollow fiber tubular membrane oil and gas purification and recovery system with a scrub absorption tower as recited in claim 15 wherein the other end of the circulation line further extends into the scrub absorption tower.
17. The hollow fiber tubular membrane oil and gas purification and recovery system with a washing absorption tower as claimed in claim 15, wherein one end of the circulation pipeline is further connected to the lower part of the washing absorption tower, and the circulation pipeline is further provided with a circulation pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW110212630U TWM623723U (en) | 2021-10-27 | 2021-10-27 | Hollow fiber tubular membrane oil and gas purification and recovery system with washing absorption tower |
| TW110212630 | 2021-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216909766U true CN216909766U (en) | 2022-07-08 |
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ID=81324781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123015103.XU Active CN216909766U (en) | 2021-10-27 | 2021-12-03 | Hollow fiber tubular membrane oil gas purification and recovery system with washing absorption tower |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN216909766U (en) |
| TW (1) | TWM623723U (en) |
-
2021
- 2021-10-27 TW TW110212630U patent/TWM623723U/en unknown
- 2021-12-03 CN CN202123015103.XU patent/CN216909766U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TWM623723U (en) | 2022-02-21 |
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