TWI802029B - Hollow fiber tubular membrane oil and gas recovery system with condenser and method thereof - Google Patents

Abstract

The invention relates to a hollow fiber tubular membrane oil gas recovery system with a condenser and its method, which is mainly used in the hollow fiber tubular membrane oil gas recovery system, and includes a double-barrel hollow fiber tubular membrane adsorption device, an oil gas transport pipeline, an exhaust delivery pipeline and a condenser, and the double-barrel hollow fiber tubular membrane adsorption equipment is divided into a first hollow fiber tubular membrane barrel and a second hollow fiber tubular membrane barrel, the The first hollow fiber tubular membrane barrel is provided with a first area and a second area, and the second hollow fiber tubular membrane barrel is provided with a third area and a fourth area to pass oil and gas through the oil and gas delivery pipe. The other end of the road is transported to the double-barrel hollow fiber tubular membrane adsorption equipment for oil and gas adsorption. When the oil and gas become purified gas after adsorption, its efficiency can reach 97% or even more than 99%. The adsorbed oil and gas are desorbed into concentrated oil and gas through vacuum pressure swing desorption, and the concentrated oil and gas are transported to the condenser through the desorption discharge pipeline for condensation treatment of the concentrated oil and gas, so that the oil and gas have the performance of condensation treatment and recovery treatment.

Description

Hollow fiber tubular membrane oil and gas recovery system with condenser and method thereof

The present invention relates to a hollow fiber tubular membrane oil gas recovery system with a condenser and its method, especially when a kind of oil gas becomes a purified gas after adsorption, its efficiency can reach 97% or even more than 99%, and it also has the ability to condense oil gas Disposal and recycling performance, suitable for gas stations, underground oil storage tanks or similar areas.

At present, gas stations will volatilize oil and gas during the refueling process for automobiles and motorcycles. The current practice is to bury the oil vapor recovery pipeline in the fuel dispenser under the fuel dispenser, and the other end of the oil vapor recovery pipeline in the fuel dispenser is connected to the underground The oil tank is connected, and through the vacuum-assisted oil vapor recovery equipment, the volatilized oil vapor during the refueling process is collected into the lower oil tank through the oil vapor recovery pipeline in the tanker to achieve the purpose of oil vapor collection.

However, the above-mentioned oil and gas are transported to the underground oil tank, and the oil in the underground oil tank will still volatilize oil and gas when it is stored, and after a period of storage, the oil and gas in the underground oil tank will gradually generate pressure. Therefore, the underground oil tank Both are equipped with pressure valves and breathing pipes. When the pressure generated by the oil and gas is greater than the value set by the pressure valve, the pressure valve will be opened and discharged into the air through the breathing pipe, allowing the pressure generated by the oil and gas in the underground oil tank to return to the air. Safe value to avoid danger. In addition, in the oil company's gasoline and diesel tank trucks or large oil storage tanks for gasoline and diesel loaded trains, exhaust gas is produced during the process of loading and unloading oil. The exhaust gas contains very dense volatile organic gases, and the concentration can be as high as 60g/ Nm3, 300g/Nm3 or higher.

However, the oil and gas discharged from the underground oil tank through the breathing tube can easily have a huge impact on the environment. In addition to polluting the surrounding air, there will be safety hazards and dangers when the concentration of the oil and gas discharged from the breathing tube is too high.

Therefore, in view of the above deficiencies, the present inventor expects to propose a hollow fiber tubular membrane oil and gas recovery system with a condenser and a method thereof that can condense and recover oil and gas, so that users can easily operate and assemble it. Research, design and organization to provide user convenience is the motivation for the invention that the inventor wants to develop.

The main purpose of the present invention is to provide a hollow fiber tubular membrane oil and gas recovery system with a condenser and its method, which is mainly used for the hollow fiber tubular membrane oil and gas recovery system, and includes a double-barrel hollow fiber tubular membrane adsorption Equipment, an oil and gas delivery pipeline, an exhaust delivery pipeline and a condenser, and the double-barrel hollow fiber tubular membrane adsorption equipment is divided into a first hollow fiber tubular membrane barrel and a second hollow fiber tube Type membrane barrel, the first hollow fiber tube type membrane barrel is provided with a first area and a second area, and the second hollow fiber tube type membrane barrel is provided with a third area and a fourth area to pass oil and gas The other end of the oil and gas pipeline is transported to the double-barrel hollow fiber tubular membrane adsorption equipment for oil and gas adsorption. When the oil and gas become purified gas after adsorption, the efficiency can reach 97% or even more than 99%. After a period of operation After switching time, the adsorbed oil and gas are desorbed into concentrated oil and gas through vacuum pressure swing desorption, and the concentrated oil and gas are transported to the condenser through the desorption discharge pipeline for condensation treatment of the concentrated oil and gas, so that the oil and gas can be condensed and recovered. Processing performance, thereby increasing the overall practicality.

Another object of the present invention is to provide a hollow fiber tube membrane oil and gas recovery system with a condenser and its method, through which a refrigerant coil is arranged inside the condenser, and the refrigerant coil The pipe system extends into the condenser, and there is a liquid in the refrigerant coil, wherein the liquid of the refrigerant coil is one or both of ice water, chlorofluorocarbon refrigerant, and hydrofluorocarbon refrigerant The combination of mixing can use the refrigerant coil to absorb heat energy, so that the concentrated oil and gas can be condensed into a condensate containing oil and gas, so that it has the effect of condensing into a condensate, thereby increasing the overall usability.

Another object of the present invention is to provide a hollow fiber tube membrane oil vapor recovery system with a condenser and its method. The purified gas in the gas pipeline is returned to the oil and gas transmission pipeline, so that the purified gas produced after the condensation of concentrated oil and gas in the condenser can be transported to the double-barrel hollow air through the oil and gas transmission pipeline. The fiber tube membrane adsorption equipment is once again adsorbed, so that it has the performance of purification again, and then increases the overall operability.

In order to further understand the characteristics, characteristics and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention, but the attached drawings are only for reference and illustration, and are not intended to limit the present invention.

1: Double barrel hollow fiber tubular membrane adsorption equipment

10: The first hollow fiber tubular membrane barrel

20: The second hollow fiber tubular membrane barrel

101: The first area

201: The third area

102: Second area

202: The fourth area

103:Hollow fiber tubular membrane adsorption material

203:Hollow fiber tubular membrane adsorption material

11: The first pipeline

21: The third pipeline

111: the first extension pipeline

211: The third extension pipeline

1111: first extension valve

2111: Third extension valve

1112: The first extension restrictor valve

2112: The third extended restrictor valve

12: Second pipeline

22: The fourth pipeline

121: the second extension pipeline

221: The fourth extension pipeline

1211: Second extension valve

2211: Fourth extension valve

1212: The second extension restrictor valve

2212: The fourth extended restrictor valve

13: The suction port of the first vacuum pump

23: Second vacuum pump suction port

30: Oil and gas transmission pipeline

31: Oil and gas control valve

40:Exhaust delivery pipeline

41: chimney

50: condenser

51: Desorption discharge pipeline

511: vacuum pump

52: Condensate exhaust pipe

53: Refrigerant coil

60: Condensate pipe

61: Condensate pipe control valve

70: Intake connecting pipeline

71: The first intake valve

73: The third intake valve

80: Outlet connecting pipeline

81: The first outlet valve

82: Second outlet valve

90: Exhaust connecting pipe

92: Second exhaust valve

94: The fourth exhaust valve

S100: Transportation of oil and gas

S110: Carry out oil and gas adsorption

S120: Generating purified gas

S130: Purify gas exhaust

S140: oil gas adsorption switching

S150: Desorption and enrichment of oil and gas

S160: Concentrated oil and gas transportation

S170: Condensed oil vapor condensation

S180: Purify gas discharge

S200: Purge gas return

Fig. 1 is a schematic diagram of the system architecture of the first hollow fiber tubular membrane barrel set in the adsorption mode of the present invention.

Fig. 2 is a schematic diagram of the system structure of the second hollow fiber tubular membrane barrel of the present invention set to the adsorption mode.

Fig. 3 is a schematic diagram of the system architecture of the first hollow fiber tubular membrane barrel of the present invention set to the adsorption mode for condensed exhaust gas recycling.

The 4th figure is that the second hollow fiber tubular membrane bucket of the present invention is set to the condensate exhaust gas of the adsorption mode. Schematic diagram of the recycling system architecture.

Fig. 5 is a flow chart of the main steps of the present invention.

Fig. 6 is another flow chart of the present invention.

Please refer to Figures 1 to 6, which are schematic diagrams of embodiments of the present invention, and the best implementation of the hollow fiber tube membrane oil and gas recovery system with condenser and its method of the present invention is applied to gas stations and underground oil storage tanks Or similar areas, mainly when oil and gas become purified gas after adsorption, the efficiency can reach 97% or even more than 99%, and it also has the efficiency of oil and gas condensation treatment and recovery treatment.

And the hollow fiber tube type membrane oil gas recovery system of tool condenser of the present invention mainly comprises a pair of bucket type hollow fiber tube type membrane adsorption equipment 1, an oil gas delivery pipeline 30, an exhaust delivery pipeline 40 and a condenser device 50, and the double-barrel hollow fiber tubular membrane adsorption equipment 1 is divided into a first hollow fiber tubular membrane barrel 10 and a second hollow fiber tubular membrane barrel 20 (as shown in the first figure to the fourth figure shown), the first hollow fiber tubular membrane barrel 10 is provided with a first area 101 and a second area 102, and there is a gap between the first area 101 and the second area 102, and the first The area 101 and the second area 102 are respectively filled with a plurality of tubular hollow fiber tubular membrane adsorbents 103, wherein the gap between the first area 101 and the second area 102 is provided with a first A vacuum pump suction port 13, and the second hollow fiber tubular membrane barrel 20 is provided with a third area 201 and a fourth area 202, and 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 adsorbents 203, wherein the third area 201 and the fourth area 202 A second vacuum pump suction port 23 is provided in the gap between them, and an air outlet communication pipeline 80 is provided between the first vacuum pump suction port 13 and the second vacuum pump suction port 23 .

In addition, the above tubular hollow fiber tubular membrane adsorbents 103 and 203 are made of polymer and adsorbent, and the polymer is made of polysulfone (PSF), polyethersulfone (PESF), poly Vinylidene fluoride (polyvinylidene fluoride, PVDF), polyphenylenesulfone (polyphenylsulfone, PPSU), polyacrylonitrile (polyacrylonitrile), cellulose acetate, cellulose diacetate, polyimide (polyimide, PI), polyether imide Amine, polyamide, polyvinyl alcohol, polylactic acid, polyglycolic acid, polylactic-co-glycolic acid, polycaprolactone, polyvinyl pyrrolidone, ethylene vinyl alcohol At least one of the group consisting of ethylene vinyl alcohol, polydimethylsiloxane, polytetrafluoroethylene and cellulose acetate (CA). The hollow fiber tubular membrane adsorbents 103 and 203 made of tubular hollow fiber have diameters and outer diameters of more than 0.5 mm, which have a high specific surface area, are easy to adsorb, and are easy to desorb. Therefore, the amount of adsorbent used is smaller than that of traditional particle types. The same dynamic adsorption performance can be achieved, and less heat energy is naturally used to complete the desorption during desorption, so it has an energy-saving effect.

In addition, the adsorbent ratio of the tubular hollow fiber tubular membrane adsorbent 103, 203 is 10%~90%, and the adsorbent is powder, and the plural particles of the powder have a particle size of 0.005 to 50um, and The multiple particles of the powder have a two-dimensional or three-dimensional pore structure, and the pores are regular or irregular in shape, wherein the adsorbent is made of molecular sieve, A-type zeolite (such as 3A, 4A or 5A), X-type zeolite (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 (Metal Organic Frameworks: MOF), activated carbon or graphene At least one of the groups is formed.

In addition, the condenser 50 is provided with a refrigerant coil 53 (as shown in Figures 1 to 4). As shown in the figure), the refrigerant coil 53 is extended into the condenser 50, and the refrigerant coil 53 has a liquid, wherein the liquid of the refrigerant coil 53 is ice water, chlorofluorocarbon refrigerant, One of the hydrofluorocarbon refrigerants or a mixture of the two can use the refrigerant coil 53 to absorb heat energy, so that the concentrated oil and gas can be condensed into a condensate containing oil and gas, so that it has the effect of condensing into a condensate. In addition, the condenser 50 is connected with a condensate pipe 60 (as shown in Fig. 1 to Fig. 4), and one end of the condensate pipe 60 is connected with the condenser 50, and the other end of the condensate pipe 60 is One end is connected with a recovery device (not shown in the figure), wherein the recovery device can be any one of an oil and gas condensate storage tank, an oil and gas condensate treatment tank, and an oil and gas condensate recovery treatment device, so that the oil and gas condensate can be The condensate is transported to the recovery equipment through the condensate pipe 60 for subsequent treatment. Furthermore, the condensate pipe 60 is provided with a condensate pipe control valve 61 (as shown in FIG. 1 to FIG. 4 ), and the flow in the condensate pipe 60 is controlled through the condensate pipe control valve 61 .

In addition, the first hollow fiber tubular membrane barrel 10 of the double barrel type hollow fiber tubular membrane adsorption equipment 1 is provided with a first pipeline 11 and a second pipeline 12, and the double barrel hollow fiber tubular membrane adsorption The second hollow fiber tubular membrane barrel 20 of equipment 1 is provided with a third pipeline 21 and a fourth pipeline 22 (as shown in Fig. 1 to Fig. 4), and the first hollow fiber tubular membrane barrel Between the first pipeline 11 of 10 and the third pipeline 21 of the second hollow fiber tubular membrane barrel 20, an air inlet communication pipeline 70 and an air outlet communication pipeline 80 are respectively provided. Between the second pipeline 12 of the tubular membrane bucket 10 and the fourth pipeline 22 of the second hollow fiber tubular membrane bucket 20, an exhaust communication pipeline 90 is arranged (as shown in Figures 1 to 4). ), wherein the intake communication pipeline 70 is provided with a first intake valve 71 and a third intake valve 73, the first intake valve 71 is close to the first pipeline 11, and the third intake valve Valve 73 is tied Close to the third pipeline 21, the gas flow direction in the intake communication pipeline 70 can be controlled through the first intake valve 71 and the third intake valve 73, and the gas outlet communication pipeline 80 is provided with a The first gas outlet valve 81 and a second gas outlet valve 82, the first gas outlet valve 81 is close to the suction port 13 of the first vacuum pump, and the second gas outlet valve 82 is close to the suction port 23 of the second vacuum pump, so that it can pass through The first gas outlet valve 81 and the second gas outlet valve 82 are used to control the gas flow in the gas outlet communication pipeline 80, and the exhaust communication pipeline 90 is provided with a second exhaust valve 92 and a fourth exhaust valve. 94, the second exhaust valve 92 is close to the second pipeline 12, and the fourth exhaust valve 94 is close to the fourth pipeline 22, so that the second exhaust valve 92 and the fourth row A gas valve 94 is used to control the gas flow in the exhaust communication pipeline 90 .

And the first pipeline 11 of the above-mentioned first hollow fiber tubular membrane bucket 10 is connected with a first extension pipeline 111, and the first extension pipeline 111 is provided with a first extension valve 1111 and a first extension limiter. Flow valve 1112 (as shown in Figures 1 to 4), and through the first extension valve 1111 to control the flow direction of the gas in the first extension pipeline 111, and through the first extension flow limiting valve 1112 to limit The gas in the first extension pipe 111 flows out from the other end. In addition, the second pipeline 12 of the first hollow fiber tubular membrane barrel 10 is connected with a second extension pipeline 121, and the second extension pipeline 121 is provided with a second extension valve 1211 and a second extension flow limiting Valve 1212 (as shown in Figure 1 to Figure 4), and through the second extension valve 1211 to control the gas flow in the second extension pipeline 121, and through the second extension flow limiting valve 1212 to limit the The gas in the second extension pipe 121 flows out from the other end. Furthermore, the third pipeline 21 of the second hollow fiber tubular membrane barrel 20 is connected with a third extension pipeline 211, and the third extension pipeline 211 is A third extension valve 2111 and a third extension flow limiting valve 2112 (as shown in Figures 1 to 4) are provided, and the gas flow in the third extension pipeline 211 is controlled through the third extension valve 2111 , and through the third extension flow limiting valve 2112 to restrict the gas in the third extension pipeline 211 from flowing out from the other end. In addition, the fourth pipeline 22 of the second hollow fiber tubular membrane barrel 20 is connected with a fourth extension pipeline 221, and the fourth extension pipeline 221 is provided with a fourth extension valve 2211 and a fourth extension flow limiting Valve 2212 (as shown in Figure 1 to Figure 4), and through the fourth extension valve 2211 to control the gas flow in the fourth extension pipeline 221, and through the fourth extension flow limiting valve 2212 to limit the The gas in the fourth extension pipeline 221 flows out from the other end.

In addition, the air intake communication pipeline 70 is connected with the oil and gas delivery pipeline 30, and one end of the oil and gas delivery pipeline 30 is connected to an oil and gas generation place (not shown), where the oil and gas generation is an oil tank truck unloading Any of the oil and gas in the oil process (primary oil and gas), the oil and gas in the refueling process (secondary oil and gas), and the oil and gas exhaled from the underground oil tank (tertiary oil and gas), and the other end of the oil and gas delivery pipeline 30 is connected to the The intake communication pipeline 70 is connected so that the oil and gas can be transported into the intake communication pipeline 70 through the oil and gas delivery pipeline 30 (as shown in Figures 1 and 2), and then pass through the first intake valve 71 and the third intake valve 73 to control the switch respectively, so that the oil and gas can pass through the intake communication pipeline 70 to pass through the first pipeline 11 to enter the first area 101 of the first hollow fiber tubular membrane barrel 10 and the second area 102 for adsorption (as shown in Figure 1), or through the air intake communication pipeline 70 to pass through the third pipeline 21 to enter the third hollow fiber tube membrane barrel 20 Adsorption is carried out in the area 201 and the fourth area 202 (as shown in Figure 2), and the oil and gas delivery pipeline 30 is provided with an oil and gas control valve 31 (as shown in Figures 1 to 4), through which the oil and gas The control valve comes 31 to control the oil and gas transmission The flow of oil and gas in the delivery pipeline 30.

In addition, the exhaust communication pipeline 90 is connected to one end of the exhaust delivery pipeline 40, and the other end of the exhaust delivery pipeline 40 has two implementations, wherein the first implementation is the exhaust The other end of the gas-connected delivery pipeline 40 is connected to a chimney 41 (as shown in the first figure), and another second embodiment is that the other end of the exhaust delivery pipeline 40 is delivered to the atmosphere (as shown in the first figure). 2 as shown). Thereby, the purified gas generated after the first hollow fiber tubular membrane barrel 10 is subjected to oil and gas adsorption can be output to the exhaust communication pipeline 90 through the second pipeline 12 , and then passed through the exhaust delivery pipeline 40 the other end to discharge the purified gas (as shown in Figure 1), or the purified gas generated after the second hollow fiber tubular membrane barrel 20 is subjected to oil and gas adsorption can be output to the exhaust gas through the fourth pipeline 22 In the communication pipeline 90, the purified gas is discharged through the other end of the exhaust delivery pipeline 40 (as shown in FIG. 2 ).

In addition, the condenser 50 is provided with a desorption discharge pipeline 51 and a condensation exhaust pipeline 52, and one end of the desorption discharge pipeline 51 is connected with the outlet communication pipeline 80, so that the first hollow fiber The concentrated oil and gas desorbed in the first region 101 and the second region 102 of the tubular membrane barrel 10 can be output to the gas outlet communication pipeline 80 through the first vacuum pump suction port 13, and then through the gas outlet communication pipeline 80 to transport to the desorption discharge pipeline 51 (as shown in Figure 2), or the desorbed concentrated oil and gas in the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 It can be output into the outlet communication pipeline 80 through the second vacuum pump suction port 23, and then transported to the desorption discharge pipeline 51 through the outlet communication pipeline 80 (as shown in FIG. 1 ). The other end of the above-mentioned desorption discharge pipeline 51 is connected to the condenser 50, so that the concentrated oil and gas transported by the desorption discharge pipeline 51 can enter the condenser 50 for condensation treatment. In addition, the desorption discharge pipeline 51 is provided with a vacuum pump 5 11 (as shown in Fig. 1 to Fig. 4), and through the vacuum pump 511, on the one hand, the vacuum swing adsorption (vaccum swing adsorption; VSA) can desorb the first hollow fiber tubular membrane adsorption drum 10 or the first The oil and gas in the two hollow fiber tubular membrane adsorption barrels 20 can push the concentrated oil and gas desorbed from the gas outlet communication pipeline 80 to the condenser 50 through the desorption discharge pipeline 51 on the one hand.

In addition, one end of the condensing exhaust pipeline 52 is connected to the condenser 50, and the other end of the condensing exhaust pipeline 52 has two implementations, wherein the first implementation is the condensing exhaust pipe The other end of road 52 is connected with a chimney 41 (as shown in the 2nd figure), and another second kind of embodiment is that the other end of the condensate exhaust pipeline 52 is delivered to the atmosphere (as shown in the 1st figure) ), so that the purified gas produced after the condensation treatment of the concentrated oil gas through the condenser 50 can be discharged into the external atmosphere through the condensation exhaust pipeline 52 .

And the other end of this condensing exhaust pipeline 52 can also carry out the embodiment that recycles and absorbs in addition to the above-mentioned two kinds of implementations that discharge outside atmosphere, and wherein the other end of this condensing exhaust pipeline 52 is with this oil-gas transportation The pipeline 30 is connected (as shown in Figure 3 and Figure 4), mainly because the purified gas produced by the condenser 50 after the condensation treatment of the concentrated oil and gas contains dilute oil and gas, therefore, the condenser 50 is used to condense the concentrated oil and gas The purified gas produced after the treatment can be transported back to the oil-gas delivery pipeline 30 by the condensate exhaust pipeline 52, so that the purified gas in the condensate exhaust pipeline 52 can be separated from the oil-gas in the oil-gas delivery pipeline 30. After mixing, the other end of the oil and gas delivery pipeline 30 is transported into the air intake communication pipeline 70 (as shown in Fig. 3 and Fig. 4 ), and is communicated with the air intake communication pipeline 70 The first pipeline 11 enters the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 to carry out oil and gas adsorption (as shown in Figure 3), or the intake communication pipeline 70 Connected No. The three pipelines 21 enter the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 for re-adsorption of oil and gas (as shown in FIG. 4 ).

Furthermore, in the actual operation of the present invention, the first hollow fiber tubular membrane barrel 10 and the second hollow fiber tubular membrane barrel 20 of the double-barrel hollow fiber tubular membrane adsorption device 1 are in the adsorption mode and desorption mode. The mode has different options, wherein the first implementation option is set by time (not shown), for example, it is set to be limited to 10 minutes (not limited to this embodiment), when the time is up, it is originally the adsorption mode The first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 are converted into the desorption mode, while the third area 201 and the second area of the second hollow fiber tubular membrane barrel 20 originally in the desorption mode The four-zone 202 then switches to adsorption mode. The second implementation option is to set the concentration (not shown), through which the exhaust delivery pipeline 40 is provided with a concentration detector (not shown), so that the first hollow fiber tubular membrane barrel 10 The second hollow fiber tubular membrane barrel 20 can switch between the adsorption mode and the desorption mode according to the concentration detected by the concentration detector.

And above-mentioned when the first region 101 and the second region 102 of this first hollow fiber tubular membrane barrel 10 are set to adsorption mode (as shown in the first figure and the first figure 3), the second hollow fiber tubular membrane barrel The third zone 201 and the fourth zone 202 of 20 are set to desorption mode, wherein the first intake valve 71 which is arranged on the intake communication pipeline 70 and is close to the first pipeline 11 is in an open state to Allow oil and gas to flow through the first air intake valve 71 of the air intake communication line 70 to flow through the first line 11 and then enter the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 Adsorption is carried out inside, while the third intake valve 73 located on the intake communication pipeline 70 and close to the third pipeline 21 is in a closed state. The second exhaust valve 92 that is additionally located on the exhaust communication pipeline 90 and close to the second pipeline 12 is in an open state, The purified gas generated after the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 is adsorbed to carry out oil and gas adsorption flows through the exhaust communication line through the second line 12 The second exhaust valve 92 of 90 enters in the exhaust delivery pipeline 40 (as shown in the first figure and the third figure), and then the other end of the exhaust delivery pipeline 40 discharges the purified gas, and the design The fourth exhaust valve 94 on the exhaust communication pipeline 90 and close to the fourth pipeline 22 is closed.

Furthermore, the desorption discharge pipeline 51 is equipped with a vacuum pump 511. When the second hollow fiber tubular membrane barrel 20 is performing vacuum swing adsorption (VSA) desorption, and desorption is performed by vacuuming , the second air outlet valve 82, which is also located on the air outlet communication pipeline 80 and close to the second vacuum pump suction port 23, is in an open state (as shown in Figure 1 and Figure 3), so that the second hollow fiber After the adsorption in the third area 201 and the fourth area 202 of the tubular membrane barrel 20, the oil gas is de-energized and attached to concentrated oil gas, and the vacuum vibration desorption is carried out through the suction port 23 of the second vacuum pump, and flows through the gas outlet communication pipe The second gas outlet valve 82 of the road 80 enters the desorption discharge pipeline 51, and then transports it to the condenser 50 for condensation treatment, and finally the condenser 50 is used to condense the concentrated oil gas by the condensation exhaust pipeline 52 The purified gas produced after the treatment is discharged, and the first gas outlet valve 81 located on the gas outlet communication pipeline 80 and close to the suction port 13 of the first vacuum pump is closed.

Conversely, when the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane barrel 20 are set to the adsorption mode (as shown in Figures 2 and 4), the first hollow fiber tubular membrane barrel The first zone 101 and the second zone 102 of 10 are then set to the desorption mode, wherein the third intake valve 73, which is arranged on the intake communication pipeline 70 and close to the third pipeline 21, is in an open state to Allow oil and gas to pass through the third intake valve 73 of the intake communication pipeline 70 After flowing through the third pipeline 21, it enters the third area 201 and the fourth area 202 of the second hollow fiber tube membrane barrel 20 for adsorption, and is arranged on the air intake communication line 70 and close to the The first intake valve 71 of the first pipeline 11 is in a closed state. The fourth exhaust valve 94, which is additionally located on the exhaust communication pipeline 90 and close to the fourth pipeline 22, is in an open state, so that the third area 201 of the second hollow fiber tubular membrane barrel 20 and the The purified gas produced after the adsorption of oil and gas in the fourth area 202 flows through the fourth pipeline 22 through the fourth exhaust valve 94 of the exhaust communication pipeline 90 and then enters the exhaust delivery pipeline 40 ( As shown in Fig. 2 and Fig. 4), the purge gas is discharged from the other end of the exhaust delivery pipeline 40, and the second pipeline 12 which is located on the exhaust communication pipeline 90 and is close to the second pipeline 12 Two exhaust valves 92 are closed.

Furthermore, the desorption discharge pipeline 51 is equipped with a vacuum pump 511. When the first hollow fiber tubular membrane barrel 10 is performing vacuum swing adsorption (VSA) desorption, and desorption is performed by vacuuming , and the first outlet valve 81, which is also located on the outlet communication pipeline 80 and close to the suction port 13 of the first vacuum pump, is in an open state (as shown in Figures 2 and 4), so that the first hollow fiber The adsorbed oil and gas in the first area 101 and the second area 102 of the tubular membrane barrel 10 are deenergized and attached to concentrated oil and gas, and desorbed by vacuum vibration through the suction port 13 of the first vacuum pump, and flow through the gas outlet communication The first gas outlet valve 81 of the pipeline 80 enters the desorption discharge pipeline 51, and then transports it to the place below the condenser 50 to allow the absorbent to absorb, and finally the condensation exhaust pipeline 52 will After the condenser 50 condenses the concentrated oil and gas, the purified gas is discharged, and the second gas outlet valve 82 arranged on the gas outlet communication pipeline 80 and close to the suction port 23 of the second vacuum pump is closed.

And the tool condenser hollow fiber tubular membrane oil gas recovery method of the present invention, mainly It is used in the hollow fiber tubular membrane oil and gas recovery system, and is provided with a double-barrel hollow fiber tubular membrane adsorption device 1, an oil and gas delivery pipeline 30, an exhaust delivery pipeline 40 and a condenser 50 (such as the first Figures to 4 shown), this double-barrel hollow fiber tubular membrane adsorption device 1 is divided into a first hollow fiber tubular membrane barrel 10 and a second hollow fiber tubular membrane barrel 20, the first hollow fiber tubular membrane barrel The fiber tube membrane barrel 10 is provided with a first area 101 and a second area 102, and a gap is provided between the first area 101 and the second area 102, and the first area 101 and the second area The area 102 is filled with a plurality of tubular hollow fiber tubular membrane adsorbents 103, wherein the gap between the first area 101 and the second area 102 is provided with a first vacuum pump suction port 13, the The second hollow fiber tubular membrane barrel 20 is provided with a third area 201 and a fourth area 202, and a gap is provided between the third area 201 and the fourth area 202, and in the third area 201 and The fourth area 202 is filled with a plurality of tubular hollow fiber tubular membrane adsorbents 203, wherein the gap between the third area 201 and the fourth area 202 is provided with a second vacuum pump suction port 23, and an air outlet communication pipeline 80 is provided between the first vacuum pump suction port 13 and the second vacuum pump suction port 23.

In addition, the above tubular hollow fiber tubular membrane adsorbents 103 and 203 are made of polymer and adsorbent, and the polymer is made of polysulfone (PSF), polyethersulfone (PESF), poly Vinylidene fluoride (polyvinylidene fluoride, PVDF), polyphenylenesulfone (polyphenylsulfone, PPSU), polyacrylonitrile (polyacrylonitrile), cellulose acetate, cellulose diacetate, polyimide (polyimide, PI), polyether imide Amine, polyamide, polyvinyl alcohol, polylactic acid, polyglycolic acid, polylactic-co-glycolic acid, polycaprolactone, polyvinyl pyrrolidone, ethylene vinyl alcohol (ethylene vinyl alcohol), polydimethyl At least one selected from the group consisting of siloxane, polytetrafluoroethylene and cellulose acetate (CA). The diameter and outer diameter of the made tubular hollow fiber tubular membrane adsorbents 103 and 203 are more than 0.5 mm to have a high specific surface area, easy to adsorb and desorb, so the amount of adsorbent is smaller than that of traditional particle type , can achieve the same dynamic adsorption performance, and naturally use less heat energy to complete the desorption during desorption, so it has an energy-saving effect.

In addition, the adsorbent ratio of the tubular hollow fiber tubular membrane adsorbent 103, 203 is 10%~90%, and the adsorbent is powder, and the plural particles of the powder have a particle size of 0.005 to 50um, and The multiple particles of the powder have a two-dimensional or three-dimensional pore structure, and the pores are regular or irregular in shape, wherein the adsorbent is made of molecular sieve, A-type zeolite (such as 3A, 4A or 5A), X-type zeolite (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 (Metal Organic Frameworks: MOF), activated carbon or graphene At least one of the groups is formed.

In addition, the first hollow fiber tubular membrane barrel 10 of the double barrel type hollow fiber tubular membrane adsorption equipment 1 is provided with a first pipeline 11 and a second pipeline 12, and the double barrel hollow fiber tubular membrane adsorption The second hollow fiber tubular membrane barrel 20 of equipment 1 is provided with a third pipeline 21 and a fourth pipeline 22 (as shown in Fig. 1 to Fig. 4), and the first hollow fiber tubular membrane barrel Between the first pipeline 11 of 10 and the third pipeline 21 of the second hollow fiber tubular membrane barrel 20, an air inlet communication pipeline 70 and an air outlet communication pipeline 80 are respectively provided. An exhaust communication pipeline 90 is provided between the second pipeline 12 of the tubular membrane barrel 10 and the fourth pipeline 22 of the second hollow fiber tubular membrane bucket 20, wherein the air intake communication pipeline 70 is provided There is a first intake valve 71 and a third intake valve 73, the first intake valve 71 is close to the first pipeline 11, and the third intake valve 73 is close to the third pipeline 21, so that Can see through The gas flow direction in the air intake communication pipeline 70 is controlled by the first air intake valve 71 and the third air intake valve 73, and the air outlet communication pipeline 80 is provided with a first air outlet valve 81 and a second air outlet Valve 82, the first air outlet valve 81 is close to the suction port 13 of the first vacuum pump, and the second air outlet valve 82 is close to the suction port 23 of the second vacuum pump, so that the first air outlet valve 81 and the second air outlet valve 81 can pass through. The air outlet valve 82 is used to control the flow direction of the gas in the air outlet communication pipeline 80. In addition, the exhaust communication pipeline 90 is provided with a second exhaust valve 92 and a fourth exhaust valve 94. The second exhaust valve 92 is Close to the second pipeline 12, and the fourth exhaust valve 94 is close to the fourth pipeline 22, so that the exhaust communication can be controlled through the second exhaust valve 92 and the fourth exhaust valve 94. The gas flow in the pipeline 90.

And the first pipeline 11 of the above-mentioned first hollow fiber tubular membrane bucket 10 is connected with a first extension pipeline 111, and the first extension pipeline 111 is provided with a first extension valve 1111 and a first extension limiter. Flow valve 1112 (as shown in Figures 1 to 4), and through the first extension valve 1111 to control the flow direction of the gas in the first extension pipeline 111, and through the first extension flow limiting valve 1112 to limit The gas in the first extension pipe 111 flows out from the other end. In addition, the second pipeline 12 of the first hollow fiber tubular membrane barrel 10 is connected with a second extension pipeline 121, and the second extension pipeline 121 is provided with a second extension valve 1211 and a second extension flow limiting Valve 1212 (as shown in Figure 1 to Figure 4), and through the second extension valve 1211 to control the gas flow in the second extension pipeline 121, and through the second extension flow limiting valve 1212 to limit the The gas in the second extension pipe 121 flows out from the other end. Furthermore, the third pipeline 21 of the second hollow fiber tubular membrane barrel 20 is connected with a third extension pipeline 211, and the third extension pipeline 211 is provided with a third extension valve 2111 and a third extension valve 2111. Flow limiting valve 2112 (as shown in Figure 1 to Figure 4), and through the third extension valve 2111 to control the gas flow in the third extension pipeline 211, and through the third extension flow limiting valve 2112 to limit the gas flow in the third extension pipeline 211 The gas flows out from the other end. In addition, the fourth pipeline 22 of the second hollow fiber tubular membrane barrel 20 is connected with a fourth extension pipeline 221, and the fourth extension pipeline 221 is provided with a fourth extension valve 2211 and a fourth extension flow limiting Valve 2212 (as shown in Figure 1 to Figure 4), and through the fourth extension valve 2211 to control the gas flow in the fourth extension pipeline 221, and through the fourth extension flow limiting valve 2212 to limit the The gas in the fourth extension pipeline 221 flows out from the other end.

The main steps of the oil and gas recovery method (as shown in FIG. 5 ) include step S100 oil and gas transportation: the oil and gas are delivered to the air intake communication pipeline 70 through the other end of the oil and gas delivery pipeline 30 . After the above step S100 is completed, the next step S110 is performed.

Wherein the above-mentioned air intake communication pipeline 70 is connected with the oil-gas delivery pipeline 30, and one end of the oil-gas delivery pipeline 30 is connected to an oil-gas generation place (not shown), wherein the oil-gas generation place is an oil tanker Any of the oil and gas in the unloading process (primary oil and gas), the oil and gas in the refueling process (secondary oil and gas), and the oil and gas exhaled from the underground oil tank (tertiary oil and gas). In addition, the oil and gas transmission pipeline 30 is provided with an oil and gas control valve 31 , through which the flow of oil and gas entering the oil and gas transmission pipeline 30 is controlled.

In addition, the next step S110 is to carry out oil and gas adsorption: then enter the first area 101 of the first hollow fiber tubular membrane barrel 10 through the first pipeline 11 connected with the air intake communication pipeline 70 and the second Oil and gas adsorption is carried out in the region 102 . After the above step S110 is completed, the next step S120 is performed.

Wherein when the above-mentioned first hollow fiber tubular membrane barrel 10 is set to the adsorption mode (as shown in the first figure and the third figure), the second hollow fiber tubular membrane barrel 20 is then set to the desorption mode, wherein the The first intake valve 71 on the intake communication pipeline 70 and close to the first pipeline 11 is in an open state, so that oil and gas can flow through the first intake valve 71 of the intake communication pipeline 70 After passing through the first pipeline 11, it enters the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 for adsorption, and is arranged on the air intake communication line 70 and close to the third The third intake valve 73 of the pipeline 21 is then in a closed state.

In addition, the next step S120 is to generate purified gas: output the purified gas generated after oil and gas adsorption to the exhaust communication pipeline 90 through the second pipeline 12 . After the above step S120 is completed, the next step S130 is performed.

Wherein the above-mentioned second exhaust valve 92 that is located on the exhaust communication pipeline 90 and is close to the second pipeline 12 is in an open state, so that the first area 101 of the first hollow fiber tubular membrane barrel 10 The purified gas produced after oil and gas adsorption in the second area 102 flows through the second pipeline 12 through the second exhaust valve 92 of the exhaust communication pipeline 90 and then enters the exhaust delivery pipeline 40 (such as Fig. 1 and Fig. 3 show), and then the other end of the exhaust delivery pipeline 40 is used to discharge the purified gas, and the fourth pipeline that is located on the exhaust communication pipeline 90 and is close to the fourth pipeline 22 The exhaust valve 94 is then in a closed state.

In addition, the next step S130 is to exhaust the purified gas: to discharge the purified gas through the other end of the exhaust delivery pipeline 40 connected with the exhaust communication pipeline 90 . After the above step S130 is completed, the next step S140 is performed.

Wherein the above-mentioned exhaust communication pipeline 90 is connected to one end of the exhaust delivery pipeline 40, and the other end of the exhaust delivery pipeline 40 is divided into two implementations, wherein the first A kind of implementation mode is that the other end of the exhaust gas delivery pipeline 40 is connected with a chimney 41 (as shown in the first figure), and another second implementation mode is that the other end of the exhaust delivery pipeline 40 is Delivered to the atmosphere (as shown in Figure 2). Thereby, the purified gas generated after oil and gas adsorption in the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 can be output to the exhaust communication line through the second pipeline 12 90, and then discharge the purified gas (as shown in Figure 1) through the other end of the exhaust delivery pipeline 40, or the third area 201 of the second hollow fiber tube membrane barrel 20 and the fourth The purified gas produced after oil gas adsorption in the area 202 can be output to the exhaust communication pipeline 90 through the fourth pipeline 22, and then the purified gas is discharged through the other end of the exhaust delivery pipeline 40 (such as the second Figure and Figure 4).

In addition, the next step S140 oil gas adsorption switching: After a period of time, the oil gas enters the third pipe 21 of the second hollow fiber tubular membrane barrel 20 through the third pipeline 21 connected with the air intake communication pipeline 70. Oil and gas adsorption is carried out in the area 201 and in the fourth area 202 . After the above step S140 is completed, the next step S150 is performed.

Wherein the above-mentioned in actual operation, the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 of this double-barrel type hollow fiber tubular membrane adsorption device 1 and the second area 102 of the second hollow fiber tubular membrane barrel 20 There are different options for adsorption mode and desorption mode in the third area 201 and the fourth area 202, wherein the first implementation option is set by time (not shown), for example, it is set to be limited to 10 minutes (not limited to this The embodiment is limited), when the time is up, the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 in the adsorption mode are converted into the desorption mode, and the desorption mode is originally in the desorption mode. The third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 are converted into an adsorption mode. while the second implementation The option is to set by concentration (not shown), and a concentration detector (not shown) is provided through the exhaust delivery pipeline 40, so that the first area 101 of the first hollow fiber tubular membrane barrel 10 And the second area 102 and the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 can switch between the adsorption mode and the desorption mode according to the concentration detected by the concentration detector .

In addition, the next step S150 desorbs and concentrates oil and gas: the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 respectively desorb the adsorbed oil and gas into concentrated oil and gas. After the above step S150 is completed, the next step S160 is performed.

Wherein the above-mentioned desorption discharge pipeline 51 is equipped with a vacuum pump 511, when the first hollow fiber tubular membrane barrel 10 is performing vacuum swing adsorption (vaccum swing adsorption; VSA) desorption, and desorption is performed by vacuuming, The first air outlet valve 81 that is also located on the air outlet communication pipeline 80 and close to the suction port 13 of the first vacuum pump is in an open state (as shown in Figures 2 and 4), so that the first hollow fiber tube The adsorbed oil and gas in the first area 101 and the second area 102 of the membrane barrel 10 are de-energyd and attached to concentrated oil and gas, and are desorbed by vacuum vibration through the first vacuum pump suction port 13, and flow through the gas outlet communication pipe The first gas outlet valve 81 of the pipeline 80 enters the desorption discharge pipeline 51, and then transports it to the condenser 50 for condensation treatment, and finally the condenser 50 is used to condense the concentrated oil and gas by the condensation exhaust pipeline 52 Afterwards, the purified gas produced is discharged, and the second gas outlet valve 82 located on the gas outlet communication pipeline 80 and close to the suction port 23 of the second vacuum pump is closed.

In addition, the next step S160 is concentrated oil and gas delivery: outputting the concentrated oil and gas to the gas outlet communication pipeline 80 through the first vacuum pump suction port 13 . and complete After the above step S160, proceed to the next step S170.

Wherein one end of the above-mentioned desorption discharge pipeline 51 is connected with the gas outlet communication pipeline 80, so that the concentrated desorbed in the first area 101 and the second area 102 of the first hollow fiber tubular membrane barrel 10 Oil and gas can be output into the gas outlet communication pipeline 80 through the first vacuum pump suction port 13, and then transported to the desorption discharge pipeline 51 through the gas outlet communication pipeline 80 (as shown in Figures 2 and 4). ).

In addition, the next step S170 to condense the concentrated oil and gas: the vacuum pump 511 in the desorption discharge pipeline 51 connected to the gas outlet communication pipeline 80 is used to push the concentrated oil and gas into the condenser 50 for condensation treatment of the concentrated oil and gas. After the above step S170 is completed, the next step S180 is performed.

Wherein the above-mentioned condenser 50 is provided with a desorption discharge pipeline 51 and a condensation exhaust pipeline 52, and the other end of the desorption discharge pipeline 51 is connected with the condenser 50 (as shown in Fig. 1 to Fig. 4 As shown in the figure), the concentrated oil and gas transported by the desorption discharge pipeline 51 can enter the condenser 50 for condensation treatment. In addition, the desorption discharge pipeline 51 is provided with a vacuum pump 511 (as shown in Fig. 1 to Fig. 4), and through the vacuum pump 511, the desorption of the first The oil and gas in the hollow fiber tubular membrane adsorption barrel 10 or the second hollow fiber tubular membrane adsorption barrel 20 can, on the one hand, push the concentrated oil and gas desorbed by the gas outlet communication pipeline 80 to the Inside the condenser 50.

In addition, a refrigerant coil 53 is provided in the condenser 50, and the refrigerant coil 53 extends into the condenser 50 (as shown in Figures 1 to 4), and the refrigerant coil 53 has a Liquid, wherein the liquid system of the refrigerant coil 53 is ice water, chlorofluorocarbon refrigerant, hydrogen One of the fluorocarbon refrigerants or a mixture of the two can use the refrigerant coil 53 to absorb heat energy, so that the concentrated oil and gas can be condensed into a condensate containing oil and gas, so that it has the effect of condensing into a condensate. In addition, the condenser 50 is connected with a condensate pipe 60 (as shown in Fig. 1 to Fig. 4), and one end of the condensate pipe 60 is connected with the condenser 50, and the other end of the condensate pipe 60 is One end is connected with a recovery device (not shown in the figure), wherein the recovery device can be any one of an oil and gas condensate storage tank, an oil and gas condensate treatment tank, and an oil and gas condensate recovery treatment device, so that the oil and gas condensate can be The condensate is transported to the recovery equipment through the condensate pipe 60 for subsequent treatment. Furthermore, the condensate pipe 60 is provided with a condensate pipe control valve 61 (as shown in FIG. 1 to FIG. 4 ), and the flow in the condensate pipe 60 is controlled through the condensate pipe control valve 61 .

In addition, the next step S180 is to discharge the purified gas: the purified gas generated after the condensed oil gas is condensed through the condenser 50 can be discharged through the condensed exhaust pipeline 52 .

One end of the above-mentioned condensing exhaust pipeline 52 is connected to the condenser 50, and the other end of the condensing exhaust pipeline 52 is divided into two implementations, wherein the first implementation is the condensing exhaust The other end of the pipeline 52 is connected to a chimney 41 (as shown in the 2nd figure), and another second embodiment is that the other end of the condensation exhaust pipeline 52 is transported to the atmosphere (as shown in the 1st figure). (shown), thereby, the purified gas generated after the condensed oil gas is condensed by the condenser 50 can be discharged into the external atmosphere through the condensed exhaust pipeline 52 .

Furthermore, another step of the present invention (as shown in the 6th figure) is to include the following steps after the above-mentioned step S180 purging gas is discharged, and the step S200 purifying gas returns: the other end of the condensing exhaust pipeline 52 is Connect with the oil and gas delivery pipeline 30, so that the The purified gas in the condensed exhaust pipeline 52 is returned to the oil and gas delivery pipeline 30 .

Wherein the other end of the above-mentioned condensing exhaust pipeline 52 is connected with the oil and gas delivery pipeline 30 (as shown in Fig. 3 and Fig. 4), which is mainly the purified gas produced after the condenser 50 condenses the concentrated oil and gas Therefore, the purified gas produced by the condenser 50 after condensing the concentrated oil and gas can be transported back to the oil and gas delivery pipeline 30 by the condensing and exhausting pipeline 52, so that the condensing and exhausting pipeline After the purified gas in 52 can be mixed with the oil and gas in the oil and gas delivery pipeline 30, it is transported to the air intake communication pipeline 70 through the other end of the oil and gas delivery pipeline 30, and is connected to the air intake communication pipe The first pipeline 11 communicated with the pipeline 70 enters the first hollow fiber tubular membrane barrel 10 for oil and gas re-adsorption (as shown in Figure 3), or the third pipeline communicated with the intake communication pipeline 70 The channel 21 enters the second hollow fiber tubular membrane barrel 20 for re-adsorption of oil and gas (as shown in FIG. 4 ).

Wherein when the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane barrel 20 are set to the adsorption mode (as shown in Figure 2 and Figure 4), the first hollow fiber tubular membrane barrel The first zone 101 and the second zone 102 of 10 are then set to the desorption mode, wherein the third intake valve 73, which is arranged on the intake communication pipeline 70 and close to the third pipeline 21, is in an open state to Allow oil and gas to flow through the third pipeline 21 through the third intake valve 73 of the intake communication pipeline 70 and then enter the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 The first intake valve 71 disposed on the intake communication pipeline 70 and close to the first pipeline 11 is closed. The fourth exhaust valve 94, which is additionally located on the exhaust communication pipeline 90 and close to the fourth pipeline 22, is in an open state, so that the third area 201 of the second hollow fiber tubular membrane barrel 20 and the The purified gas generated after oil and gas adsorption in the fourth area 202 flows through the exhaust gas through the fourth pipeline 22 The fourth exhaust valve 94 of the communication pipeline 90 enters the exhaust delivery pipeline 40, and the purified gas is discharged from the other end of the exhaust delivery pipeline 40, and is arranged on the exhaust communication pipeline 90. And the second exhaust valve 92 close to the second pipeline 12 is closed.

Furthermore, when the third region 201 and the fourth region 202 of the second hollow fiber tubular membrane barrel 20 become desorption mode (as shown in Fig. 1 and Fig. 3), the first hollow fiber tubular When the first zone 101 and the second zone 102 of the membrane barrel 10 then become the adsorption mode, the desorption discharge pipeline 51 is equipped with a vacuum pump 511, and when the second hollow fiber tube type membrane barrel 20 is performing vacuum pressure change (vaccum swing adsorption; VSA) desorption, and when desorption is carried out by vacuuming, the second gas outlet valve 82, which is additionally located on the gas outlet communication pipeline 80 and close to the suction port 23 of the second vacuum pump, is in an open state, so that The adsorbed oil and gas in the third area 201 and the fourth area 202 of the second hollow fiber tubular membrane barrel 20 are deenergized and attached to concentrated oil and gas, and the vacuum vibration desorption is performed through the suction port 23 of the second vacuum pump, and After passing through the second outlet valve 82 of the outlet communication pipeline 80, it enters the desorption discharge pipeline 51, and then transports it to the condenser 50 for condensation treatment, and finally the condensation exhaust pipeline 52 is used to condense the The purifier 50 condenses the concentrated oil and gas to produce purified gas to be discharged, and the first gas outlet valve 81 located on the gas outlet communication pipeline 80 and close to the suction port 13 of the first vacuum pump is closed.

From the above detailed description, those who are familiar with this art can understand that the present invention can indeed achieve the aforementioned purpose, and have actually met the provisions of the Patent Law, so they should file an application for a patent for invention.

But the above-mentioned ones are only preferred embodiments of the present invention, and should not limit the scope of the present invention; therefore, all simple equivalent changes and modifications made according to the patent scope of the present invention and the contents of the description of the invention , should still fall within the scope covered by the patent of the present invention.

1: Double barrel hollow fiber tubular membrane adsorption equipment

10: The first hollow fiber tubular membrane barrel

20: The second hollow fiber tubular membrane barrel

101: The first area

201: The third area

102: Second area

202: The fourth area

103:Hollow fiber tubular membrane adsorption material

203:Hollow fiber tubular membrane adsorption material

11: The first pipeline

21: The third pipeline

111: the first extension pipeline

211: The third extension pipeline

1111: first extension valve

2111: Third extension valve

1112: The first extension restrictor valve

2112: The third extended restrictor valve

12: Second pipeline

22: The fourth pipeline

121: the second extension pipeline

221: The fourth extension pipeline

1211: Second extension valve

2211: Fourth extension valve

1212: The second extension restrictor valve

2212: The fourth extended restrictor valve

13: The suction port of the first vacuum pump

23: Second vacuum pump suction port

30: Oil and gas transmission pipeline

31: Oil and gas control valve

40:Exhaust delivery pipeline

41: chimney

50: condenser

51: Desorption discharge pipeline

511: vacuum pump

52: Condensate exhaust pipe

53: Refrigerant coil

60: Condensate pipe

61: Condensate pipe control valve

70: Intake connecting pipeline

71: The first intake valve

73: The third intake valve

80: Outlet connecting pipeline

81: The first outlet valve

82: Second outlet valve

90: Exhaust connecting pipe

92: Second exhaust valve

94: The fourth exhaust valve

Claims (28)

A hollow fiber tubular membrane oil and gas recovery system with a condenser, including: a double-barrel hollow fiber tubular membrane adsorption device, the double-barrel hollow fiber tubular membrane adsorption equipment is separately equipped with a first hollow fiber tubular membrane A 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, and a plurality of roots are used in the first area and the second area It is filled with tubular hollow fiber tubular membrane adsorbent material, a first vacuum pump suction port is provided between the first area and the second area, and 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 equipped with a plurality of tubular hollow fiber tubular Filled with membrane adsorption material, a second vacuum pump suction port is provided between the third area and the fourth area, and the second hollow fiber tube type membrane barrel is provided with a third pipeline and a fourth pipeline. An intake communication pipeline is provided between the first pipeline and the third pipeline, an exhaust communication pipeline is provided between the second pipeline and the fourth pipeline, and the suction port of the first vacuum pump is connected to the fourth pipeline. There is an air outlet communication pipeline between the suction ports of the second vacuum pump; an oil and gas delivery pipeline, one end of the oil and gas delivery pipeline is connected to the oil and gas generation place, and the other end of the oil and gas delivery pipeline is communicated with the inlet Pipeline connection; an exhaust delivery pipeline, one end of the exhaust delivery pipeline is connected to the exhaust communication pipeline; and a condenser, the condenser is provided with a desorption discharge pipeline and a condensed exhaust pipeline, one end of the desorption discharge pipeline is connected to the gas outlet communication pipeline, and the other end of the desorption discharge pipeline is connected to the condenser, wherein a vacuum pump is arranged on the desorption discharge pipeline, and the condensing One end of the exhaust pipeline is connected to the condenser, and the condenser is provided with a refrigerant coil, the refrigerant The coil extends through the condenser, the refrigerant coil contains liquid, and the condenser is connected to a condensate pipe, one end of the condensate pipe is connected to the condenser, and the condensate pipe is connected to the condenser. The other end is connected to a recovery device, in which the liquid system of the refrigerant coil is a combination of one or two mixed refrigerants of chlorofluorocarbons and hydrofluorocarbons, so that the refrigerant coil can be used to absorb heat energy , so that the concentrated oil and gas can be condensed into a condensate containing oil and gas. Hollow fiber tube membrane oil and gas recovery system with condenser as described in Item 1 of the scope of the patent application, wherein the other end of the condensate exhaust pipeline is further connected to a chimney. Hollow fiber tubular membrane oil and gas recovery system with condenser as described in Item 1 of the patent scope of the application, wherein the other end of the condensate exhaust pipeline is further transported to the atmosphere. The hollow fiber tube membrane oil and gas recovery system with condenser as described in Item 1 of the patent scope of the application, wherein the other end of the condensing exhaust pipeline is further connected to the oil and gas delivery pipeline. The hollow fiber tubular membrane oil and gas recovery system with condenser as described in item 1 of the patent scope of the application, wherein the other end of the exhaust delivery pipeline is further connected with a chimney. The hollow fiber tubular membrane oil and gas recovery system with condenser as described in item 1 of the patent scope of the application, wherein the other end of the exhaust gas delivery pipeline is further transported to the atmosphere. The hollow fiber tubular membrane oil and gas recovery system with condenser as described in Item 1 of the scope of the patent application, wherein the air intake communication pipeline is further provided with a first air intake valve and a third air intake valve. As described in item 1 of the scope of the patent application, the hollow fiber tubular membrane oil and gas recovery system with condenser, wherein the gas outlet communication pipeline is further provided with a first gas outlet valve and a second gas outlet valve. As described in item 1 of the patent scope of the application, the hollow fiber tubular membrane oil and gas recovery system with a condenser, wherein the exhaust communication pipeline is further provided with a second exhaust valve and a fourth exhaust valve. Hollow fiber tubular membrane oil and gas recovery system with condenser as described in Item 1 of the patent scope of the application, wherein the first pipeline is further connected with a first extension pipeline, and the first extension pipeline is further provided with a A first extension valve and a first extension flow limiting valve. Hollow fiber tubular membrane oil and gas recovery system with condenser as described in Item 1 of the patent scope of the application, wherein the second pipeline is further connected with a second extension pipeline, and the second extension pipeline is further provided with a A second extension valve and a second extension flow limiting valve. Hollow fiber tubular membrane oil and gas recovery system with condenser as described in item 1 of the patent scope of the application, wherein the third pipeline is further connected with a third extension pipeline, and the third extension pipeline is further provided with a A third extension valve and a third extension flow limiting valve. Hollow fiber tubular membrane oil and gas recovery system with condenser as described in Item 1 of the patent scope of the application, wherein the fourth pipeline is further connected with a fourth extension pipeline, and the fourth extension pipeline is further provided with a A fourth extension valve and a fourth extension flow limiting valve. As described in item 1 of the patent application scope, the hollow fiber tube membrane oil and gas recovery system with condenser, wherein the condensate pipe system is further provided with a condensate pipe control valve. A hollow fiber tubular membrane oil and gas recovery method with a condenser, which is mainly used in the hollow fiber tubular membrane oil and gas recovery system, and is equipped with a double-barrel hollow fiber tubular membrane adsorption device, an oil and gas delivery pipeline, and an exhaust Conveying pipeline and a condenser, the double-barrel hollow fiber tubular membrane adsorption equipment is divided into a first hollow fiber tubular membrane barrel and a second hollow fiber tubular membrane barrel, the first hollow fiber tubular membrane The barrel is provided with a first area and a second area, the The first area and the second area are respectively filled with a plurality of tubular hollow fiber tubular membrane adsorption materials, and a first vacuum pump suction port is provided between the first area and the second area. A 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 first The four areas are respectively filled with a plurality of tubular hollow fiber tubular membrane adsorption materials. A second vacuum pump suction port is arranged between the third area and the fourth area. The second hollow fiber tubular membrane barrel A third pipeline and a fourth pipeline are provided, an intake communication pipeline is provided between the first pipeline and the third pipeline, and an air intake communication pipeline is provided between the second pipeline and the fourth pipeline. An exhaust communication pipeline is provided, a gas outlet communication pipeline is provided between the suction port of the first vacuum pump and the suction port of the second vacuum pump, and the condenser is provided with a desorption discharge pipeline and a condensation exhaust pipeline, A vacuum pump is provided on the desorption discharge pipeline, and the main steps of the oil and gas recovery method include: transporting the oil and gas: transporting the oil and gas to the air intake communication pipeline through the other end of the oil and gas delivery pipeline; Adsorption: enter the first area and the second area of the first hollow fiber tubular membrane barrel through the first pipeline connected with the intake communication pipeline for oil and gas adsorption; generate purified gas: oil and gas adsorption will be carried out Afterwards, the purified gas generated is output to the exhaust communication pipeline through the second pipeline; the purified gas is exhausted: the purified gas is then discharged through the other end of the exhaust delivery pipeline connected with the exhaust communication pipeline ; Oil and gas adsorption switching: After a period of time, the oil and gas enter the third area and the fourth area of the second hollow fiber tubular membrane barrel through the third pipeline connected to the air intake communication line for oil and gas adsorption; Desorption and concentrated oil and gas: the first area and the second area of the first hollow fiber tubular membrane barrel respectively desorb the adsorbed oil and gas into concentrated oil and gas; concentrated oil and gas transportation: extract the concentrated oil and gas through the first vacuum pump Condensed oil and gas condensation: then push the concentrated oil and gas to the condenser through the vacuum pump in the desorption discharge pipeline connected to the gas outlet communication pipeline for condensation treatment of the concentrated oil and gas, and The condenser is provided with a refrigerant coil, the refrigerant coil extends into the condenser, the refrigerant coil contains liquid, and the condenser is connected to a condensate pipe, one end of the condensate pipe It is connected to the condenser, and the other end of the condensate pipe is connected to a recovery device, wherein the liquid system of the refrigerant coil is one of chlorofluorocarbons, hydrofluorocarbons, or a mixture of two , so that the refrigerant coil can be used to absorb heat energy, so that the concentrated oil and gas can be condensed into a condensate containing oil and gas; and the purified gas is discharged: the purified gas generated after the condensation of the concentrated oil and gas through the condenser can be produced by the condensation Exhaust line to discharge. As described in item 15 of the patent scope of the application, the hollow fiber tube membrane oil and gas recovery method with a condenser, wherein after the purification gas discharge step, the following steps are further included: the purification gas return: the other end of the condensation exhaust pipeline is It is connected with the oil-gas delivery pipeline, so that the purified gas in the condensed exhaust pipeline is returned to the oil-gas delivery pipeline. As described in item 15 of the scope of the patent application, the hollow fiber tube membrane oil and gas recovery method with a condenser, wherein the other end of the condensation exhaust pipeline is further connected to a chimney. The hollow fiber tube membrane oil and gas recovery method with a condenser as described in item 15 of the scope of the patent application, wherein the other end of the condensate exhaust pipeline is further transported to the atmosphere. As described in item 15 of the patent scope of the application, the hollow fiber tube membrane oil and gas recovery method with a condenser, wherein the other end of the exhaust delivery pipeline is further connected to a chimney. The hollow fiber tubular membrane oil and gas recovery method with condenser as described in item 15 of the scope of patent application, wherein the other end of the exhaust delivery pipeline is further delivered to the atmosphere. As described in item 15 of the scope of the patent application, the hollow fiber tubular membrane oil and gas recovery method with a condenser, wherein the air intake communication pipeline is further provided with a first air intake valve and a third air intake valve. As described in item 15 of the scope of the patent application, the hollow fiber tubular membrane oil and gas recovery method with a condenser, wherein the gas outlet communication pipeline is further provided with a first gas outlet valve and a second gas outlet valve. As described in item 15 of the scope of the patent application, the hollow fiber tubular membrane oil and gas recovery method with a condenser, wherein the exhaust communication pipeline is further provided with a second exhaust valve and a fourth exhaust valve. Hollow fiber tubular membrane oil and gas recovery method with condenser as described in item 15 of the scope of patent application, wherein the first pipeline is further connected with a first extension pipeline, and the first extension pipeline is further provided with a A first extension valve and a first extension flow limiting valve. As described in item 15 of the scope of the patent application, the hollow fiber tube membrane oil and gas recovery method with a condenser, wherein the second pipeline is further connected with a second extension pipeline, and the second extension pipeline is further provided with a A second extension valve and a second extension flow limiting valve. Hollow fiber tubular membrane oil and gas recovery method with condenser as described in item 15 of the patent scope, wherein the third pipeline is further connected with a third extension pipeline, and the third extension pipeline is further provided with a A third extension valve and a third extension flow limiting valve. Hollow fiber tubular membrane oil and gas recovery method with condenser as described in item 15 of the scope of patent application, wherein the fourth pipeline is further connected with a fourth extension pipeline, and the fourth extension pipeline is further provided with a A fourth extension valve and a fourth extension flow limiting valve. As described in item 15 of the scope of the patent application, the hollow fiber tube membrane oil and gas recovery method with a condenser, wherein the condensate pipe system is further provided with a condensate pipe control valve.

Images