CN219355791U - Adsorption Tube Membrane Thermal Desorption System for Oil and Gas Treatment - Google Patents

Abstract

The utility model discloses an adsorption tubular membrane oil gas treatment thermal desorption system, mainly because the adsorption efficiency of the first hollow fiber tubular membrane adsorption tank or the second hollow fiber tubular membrane adsorption tank decreases after a period of time During the process, the heat-exchanged gas generated by the heat exchanger can be used to perform high-temperature thermal desorption of the residue attached to the first hollow fiber tubular membrane adsorption tank or the second hollow fiber tubular membrane adsorption tank. Attached, so that the first hollow fiber tubular membrane adsorption tank or the second hollow fiber tubular membrane adsorption tank can restore the adsorption performance, so as to improve the efficiency of treating high-concentration oil and gas.

Description

Adsorption Tube Membrane Thermal Desorption System for Oil and Gas Treatment

technical field

The utility model relates to an adsorption tube type membrane oil gas treatment thermal desorption system, in particular to a thermal desorption system which uses pressure-swing vacuum adsorption and desorption for a period of time, but when the adsorption efficiency is low, thermal desorption is performed to improve the The efficiency of dealing with high-concentration oil and gas is suitable for petrochemical plant areas, oil storage plant areas or similar areas.

Background technique

At present, petrochemical plants will produce high-concentration oil and gas during operations, and the high-concentration oil and gas will be adsorbed once through activated carbon treatment equipment, or use two activated carbon canisters to adsorb one and desorb the other, and cycle alternately run. Activated carbon, however, is prone to fire and has its hazards.

The high-concentration oil and gas produced in the petrochemical plant area contains hydrocarbons and other organic substances, and some organic substances, such as organic substances with a higher boiling point, are easily attached to the adsorbent material of the activated carbon treatment equipment during the adsorption process of the activated carbon treatment equipment, and After a period of time, the adsorption efficiency of the activated carbon treatment equipment will decrease, and the decrease in treatment efficiency will cause more organic waste gas to be directly discharged into the atmosphere, which exceeds the environmental protection emission standard.

Moreover, the activated carbon treatment equipment discharges more organic matter into the atmosphere due to poor efficiency, which will easily cause a huge impact on the environment. In addition to polluting the surrounding air, there will be safety hazards when the concentration of the discharged organic matter is too high. Hidden dangers and dangers.

Therefore, in view of the above deficiencies, the inventors hope to propose an adsorption tubular membrane oil and gas treatment thermal desorption system that can improve the efficiency of treating high-concentration oil and gas, so that users can easily operate and assemble. , to provide user convenience is the motivation for the invention that the inventor wants to develop.

Utility model content

The main purpose of the present utility model is to provide an adsorption tube type membrane oil gas treatment thermal desorption system, mainly after a period of time the first hollow fiber tube type membrane adsorption tank or the second hollow fiber tube type membrane adsorption tank After repeated cycles of adsorption and vacuum desorption, for example, after one year, when the adsorption performance drops or does not meet the emission standards, the heat-exchanged gas generated by the heat exchanger can be used to detach the gas attached to the The hollow fiber tubular membrane adsorbent in the first hollow fiber tubular membrane adsorption tank or the remaining attachments that are not completely desorbed in the hollow fiber tubular membrane adsorbent in the second hollow fiber tubular membrane adsorption tank Perform high-temperature thermal desorption, so that the first hollow fiber tubular membrane adsorption tank or the second hollow fiber tubular membrane adsorption tank can restore the adsorption performance, so as to improve the efficiency of treating high-concentration oil and gas, thereby increasing the overall practicality . The principle is that pressure swing vacuum desorption is used during normal operation. In this embodiment, through different path designs, high temperature thermal desorption is used to desorb the residual organic matter in the hollow fiber tubular membrane adsorption material. From the principles in textbooks and many papers, we can find that the effect of high temperature thermal desorption is much greater than that of pressure swing vacuum desorption, so the adsorption efficiency can be restored and improved.

Another purpose of the present utility model is to provide an adsorption tube type membrane oil gas treatment thermal desorption system and its method. When the vacuum pump pumps high-concentration oil gas in a vacuum way, the cooling first bypass pipeline and the One end of the vacuum pump of the desorption first discharge pipeline is connected, and the other end of the cooling first bypass pipeline is connected with one end of the hot side channel of the heat exchanger, and one end of the cooling second bypass pipeline is connected with The other end of the hot side channel of the heat exchanger is connected, and the other end of the cooling second bypass line is connected with the other end of the vacuum pump of the first desorption discharge line, so as to perform heat exchange to circulate cooling and lowering the temperature, Wherein the heat exchanger is a water-to-air heat exchanger, so that the vacuum pump can circulate water through the water in the cooling first bypass pipeline and the cooling second bypass pipeline, so that the vacuum pump has a circulation during operation. The efficiency of cooling and cooling by water can be used to increase the overall usability, especially when cooling water cannot be provided, and the method of the utility model can cool the cooling water through the heat exchanger, and then provide it to the vacuum pump for cooling , to remove the heat generated by the vacuum pump.

Another purpose of the present utility model is to provide an adsorption tube type membrane oil gas treatment thermal desorption system and its method. The heat-exchanged gas generated by the heat exchanger is transported to the first In the second communication pipeline, it is output from the second communication pipeline to the fourth pipeline, and then enters the second hollow fiber tubular membrane adsorption tank through the fourth pipeline, and passes through the heat exchange The heat-exchanged gas generated by the device is used to carry out high-temperature thermal desorption of the remaining attachments attached to the second hollow fiber tubular membrane adsorption tank, and the thermally desorbed gas containing attachments passes through the third pipeline to be transported into the first communication pipeline, and enter the desorption second discharge pipeline through the first communication pipeline, and then the thermally desorbed gas containing attachments is discharged from the desorption second discharge pipeline The road is output to a second processing equipment connected to the other end, and the subsequent processing is carried out through the second processing equipment, so that in addition to the performance of high-temperature thermal desorption, it can also achieve the purpose of purification treatment again, thereby increasing Overall operability. In this way, vacuum desorption is used in the adsorption process, and in principle, the effect of vacuum desorption is not as good as high temperature desorption. Therefore, after high temperature thermal desorption, the hollow fiber tubular membrane adsorption tank will obtain better desorption than vacuum desorption. process to achieve recovery performance. This point can be proved in books on chemical engineering principles, adsorption isotherm curves, and adsorption curves of different partial pressures, so I won’t repeat them here.

In order to further understand the features, characteristics and technical contents of the present utility model, please refer to the following detailed description and accompanying drawings of the present utility model, but the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present utility model.

Description of drawings

Fig. 1 is a schematic diagram of the system architecture in which the first hollow fiber tubular membrane adsorption tank is set to the adsorption mode.

Fig. 2 is a schematic diagram of the system architecture in which the second hollow fiber tubular membrane adsorption tank is set to the adsorption mode.

Fig. 3 is a schematic diagram of the system architecture in which the second hollow fiber tubular membrane adsorption tank is changed to a high-temperature thermal desorption mode.

FIG. 4 is a schematic diagram of an implementation system architecture for controlling a pneumatic valve with compressed air.

Explanation of reference signs

1. The first hollow fiber tubular membrane adsorption tank

2. The second hollow fiber tubular membrane adsorption tank

3. Hollow fiber tubular membrane adsorption material

101. The first pipeline 1011. The first pipeline control valve

102. The second pipeline 1021. The second pipeline control valve

103. The second extension pipeline 1031. The second extension control valve

1032, the second extension flow limiting valve 203, the third pipeline

2031, the third pipeline control valve 204, the fourth pipeline

2041, the fourth pipeline control valve 205, the fourth extension pipeline

2051, the fourth extension control valve 2052, the fourth extension flow limiting valve

10. Oil and gas transmission pipeline 11. Oil and gas transmission control valve

12. Oil and gas generation place 21. The first connecting pipeline

211, the first control valve 212, the second control valve

22. The second communication pipeline 221. The first control valve

222. The second control valve 30. The first discharge pipeline for desorption

31. Vacuum pump 32. Desorption first discharge control valve

33. Vacuum pump output control valve 34. First processing equipment

40. The second discharge pipeline for desorption 41. The second treatment equipment

42. Desorption second discharge control valve 50. Exhaust output pipeline

51. Exhaust equipment 60. Cooling bypass pipeline

61. Cooling the first bypass pipeline 62. Cooling the second bypass pipeline

63. Heat exchanger 631. Cold side channel

632. Hot side channel 64. Cooling unit

65. Water tank 651. Water inlet pipe

652. Outlet pipe 66. Water pump

70. Heat exchange delivery pipeline 71. Fan

72. Heater 73. External air

90. Vacuum pump bypass pipeline 91. Vacuum pump bypass control valve

Detailed ways

Please refer to FIG. 1 to FIG. 4 , which are schematic diagrams of an embodiment of the present invention. However, the best implementation mode of the adsorption tubular membrane oil gas treatment thermal desorption system of the present invention is used in petrochemical plant areas, oil storage plant areas or similar areas. When the efficiency is low, thermal desorption can be performed to improve the efficiency of processing high-concentration oil and gas.

And the adsorption tubular membrane oil gas treatment thermal desorption system of the present utility model mainly comprises a first hollow fiber tubular membrane adsorption tank 1, a second hollow fiber tubular membrane adsorption tank 2, an oil gas delivery pipeline 10, a A first communication pipeline 21, a second communication pipeline 22, a desorption first discharge pipeline 30, a desorption second discharge pipeline 40, an exhaust delivery pipeline 50, a cooling bypass pipeline 60 and A heat exchange delivery pipeline 70 (as shown in Figures 1 to 4), and the first hollow fiber tubular membrane adsorption tank 1 and the second hollow fiber tubular membrane adsorption tank 2 are respectively equipped with a plurality of tubular It is filled with hollow fiber tubular membrane adsorption material 3, wherein the tubular hollow fiber tubular membrane adsorption material 3 is in the shape of a long tube, and there are more than one hollow channels parallel to each other inside, and it is made of polymer and adsorbent , and the polymer is made of polysulfone (polysulfone, PSF), polyethersulfone (polyethersulfone, PESF), polyvinylidene fluoride (polyvinylidene fluoride, PVDF), polyphenylsulfone (polyphenylsulfone, PPSU), polyacrylonitrile (polyacrylonitrile ), cellulose acetate, cellulose diacetate, polyimide (PI), polyetherimide, polyamide, polyvinyl alcohol, polylactic acid, polyglycolic acid, polylactic-co-glycolic acid (polylactic-co- glycolic acid), polycaprolactone, polyvinylpyrrolidone, ethylene vinyl alcohol, polydimethylsiloxane, polytetrafluoroethylene and cellulose acetate (CA) at least one of the groups formed. And the tubular outer diameter of the made tubular hollow fiber tubular membrane adsorption material 3 is more than 5 mm, and the single diameter of the inner channel is more than 0.3 mm, and there may be a plurality of parallel inner channels to have high specific surface area and adsorption speed. Fast, the desorption speed is also fast, so the amount of adsorbent is smaller than the traditional particle type, and the same dynamic adsorption performance can be achieved, and less heat energy can be used to complete the desorption during desorption, so it is energy-saving. Effect. In addition, the tubular hollow fiber tubular membrane adsorbent 3 contains an adsorbent ratio of 10% to 90%, and the adsorbent prototype is in the form of a powder, and a plurality of particles of the powder have a particle size of 0.005 to 50um, and A plurality of particles of the powder has a nano-adsorption microporous structure, wherein the adsorbent is made of molecular sieve, zeolite (such as A-type zeolite (such as 3A, 4A or 5A), X-type zeolite (such as 13X), Y-type zeolite (such as At least one of the group consisting of ZSM-5)), Metal Organic Frameworks (Metal Organic Frameworks: MOF), activated carbon or graphene.

In addition, the first hollow fiber tubular membrane adsorption tank 1 is provided with a first pipeline 101 and a second pipeline 102, and the second hollow fiber tubular membrane adsorption tank 2 is provided with a third pipeline 203 and a fourth pipeline 203. Pipeline 204 (as shown in Figures 1 to 4), wherein the first pipeline 101 of the first hollow fiber tubular membrane adsorption tank 1 is provided with a first pipeline control valve 1011, the first hollow fiber tubular membrane The second pipeline 102 of the adsorption tank 1 is provided with a second pipeline control valve 1021, and the third pipeline 203 of the second hollow fiber tubular membrane adsorption tank 2 is provided with a third pipeline control valve 2031. The fourth pipeline 204 of the fiber tubular membrane adsorption tank 2 is provided with a fourth pipeline control valve 2041, and the first pipeline control valve 1011, the second pipeline control valve 1021, the third pipeline control valve 2031 And the fourth pipeline control valve 2041 can be any one of check valve, electric valve and pneumatic valve, so that the first pipeline control valve 1011, the second pipeline control valve 1021, the second pipeline control valve The three pipeline control valves 2031 and the fourth pipeline control valve 2041 are used to control the gas flow in the first pipeline 101 , the second pipeline 102 , the third pipeline 203 and the fourth pipeline 204 . The above-mentioned method of using pneumatic valves is the first pipeline control valve 1011, the second pipeline control valve 1021, the third pipeline control valve 2031, the fourth pipeline control valve 2041 and a gas output control tube. Road 81 is connected (as shown in Figure 4), and the gas output control pipeline 81 is connected with a pressure regulator barrel 80, and the pressure regulator barrel 80 outputs compressed gas to the gas output control pipeline 81, wherein the compressed gas is compressed air, and the compressed air is used to control the opening and closing of the first pipeline control valve 1011 , the second pipeline control valve 1021 , the third pipeline control valve 2031 and the fourth pipeline control valve 2041 .

One end of the first communication pipeline 21 is connected to the first pipeline 101 of the first hollow fiber tubular membrane adsorption tank 1, and the other end of the first communication pipeline 21 is connected to the second hollow fiber tubular membrane The third pipeline 203 of the adsorption tank 2 is connected (as shown in Figures 1 to 4), wherein the first communication pipeline 21 is provided with a first control valve 211 and a second control valve 212, and the first control valve 211 and the second control valve 212 can be any one of check valve, electric valve and pneumatic valve, and the first control valve 211 is close to the first pipeline 101, and the second control valve 212 is close to the The third pipeline 203 can control the gas flow in the first communication pipeline 21 through the first control valve 211 and the second control valve 212 . In addition, one end of the second communication pipeline 22 is connected with the second pipeline 102 of the first hollow fiber tubular membrane adsorption tank 1, and the other end of the second communication pipeline 22 is connected with the second hollow fiber tubular membrane adsorption tank 1. The fourth pipeline 204 of the tank 2 is connected (as shown in Figures 1 to 4), wherein the second communication pipeline 22 is provided with a first control valve 221 and a second control valve 222, and the first control valve 221 And the second control valve 222 can be used as any one of check valve, electric valve and pneumatic valve, and the first control valve 221 is close to the second pipeline 102, and the second control valve 222 is close to the first The four pipelines 204 enable the flow of gas in the second communication pipeline 22 to be controlled through the first control valve 221 and the second control valve 222 .

In addition, the method of adopting pneumatic valves in the above is that the first control valve 211 and the second control valve 212 of the first communication pipeline 21 are connected with a gas output control pipeline 81 (as shown in Figure 4), and the gas output control The pipeline 81 is connected with a pressure-stabilizing barrel 80, and the pressure-stabilizing barrel 80 outputs compressed gas into the gas output control pipeline 81, wherein the compressed gas is compressed air, and the first communication pipe is controlled by the compressed gas The switch of the first control valve 211 and the second control valve 212 of the road 21. In addition, the method of using pneumatic valves in the above is that the first control valve 221 and the second control valve 222 of the second communication pipeline 22 are connected with a gas output control pipeline 81 (as shown in Figure 4), and the gas output control The pipeline 81 is connected with a pressure-stabilizing barrel 80, and the pressure-stabilizing barrel 80 outputs compressed gas into the gas output control pipeline 81, wherein the compressed gas is compressed air, and the second communication pipe is controlled by the compressed gas The switch of the first control valve 221 and the second control valve 222 of the road 22.

The second pipeline 102 of the above-mentioned first hollow fiber tubular membrane adsorption tank 1 is connected with a second extension pipeline 103, and the second extension pipeline 103 is provided with a second extension control valve 1031 and a second extension limiter. Flow valve 1032 (as shown in Figures 1 to 4), and the second extension control valve 1031 and the second extension flow limiting valve 1032 can be used as any one of a check valve, an electric valve, and a pneumatic valve, and The gas flow direction in the second extension pipeline 103 is controlled by the second extension control valve 1031 , and the gas in the second extension pipeline 103 is restricted from flowing out from the other end by the second extension flow limiting valve 1032 , In addition, the fourth pipeline 204 of the second hollow fiber tubular membrane adsorption tank 2 is connected to a fourth extension pipeline 205, and the fourth extension pipeline 205 is provided with a fourth extension control valve 2051 and a fourth extension flow limiting Valve 2052 (as shown in Figures 1 to 4), and the fourth extension control valve 2051 and the fourth extension flow limiting valve 2052 can be used as any one of a check valve, an electric valve, and a pneumatic valve, and through The fourth extension control valve 2051 is used to control the gas flow in the fourth extension pipeline 205 , and the fourth extension flow limiting valve 2052 is used to restrict the gas in the fourth extension pipeline 205 from flowing out from the other end. Furthermore, in the above-mentioned method of using pneumatic valves, the second extension control valve 1031 and the fourth extension control valve 2051 are connected to a gas output control pipeline 81 (as shown in FIG. 4 ), and the gas output control pipeline 81 It is connected with a pressure-stabilizing tank 80, and the pressure-stabilizing tank 80 outputs compressed gas into the gas output control pipeline 81, wherein the compressed gas is compressed air, and the second extension control valve 1031 and the second extension control valve 1031 are controlled by the compressed gas. The fourth extension controls the opening and closing of the valve 2052 .

In addition, one end of the oil and gas delivery pipeline 10 is connected with the first pipeline 101 of the first hollow fiber tubular membrane adsorption tank 1 and the third pipeline 203 of the second hollow fiber tubular membrane adsorption tank 2. The other end of the delivery pipeline 10 is connected to an oil and gas generating place 12, so that the oil and gas can be delivered to the first pipeline 101 or in the third pipeline 203 through the oil and gas delivery pipeline 10 (as shown in Figure 1 and Shown in Fig. 2), wherein the oil and gas generation place 12 is a petrochemical plant area, an oil storage plant area or a similar area, and it can also be the oil and gas (disposable oil and gas) in the oil tanker unloading process, the oil and gas (secondary oil and gas) in the refueling process Oil and gas), any of the oil and gas exhaled from underground oil tanks (tertiary oil and gas), wherein the oil and gas transmission pipeline 10 is provided with an oil and gas transmission control valve 11, and the oil and gas transmission control valve 11 can be adopted as a check valve, electric Any one of valves and pneumatic valves is used to control oil and gas transportation, and the oil and gas transportation pipeline 10 can also be equipped with flame arresters, filter screens, liquid discharge nets and other devices (not shown in the figure) to assist in controlling the oil and gas transportation. And prevent situations such as this oil and gas conveying pipeline 10 from taking place.

In addition, one end of the exhaust delivery pipeline 50 is connected with the second pipeline 102 of the first hollow fiber tubular membrane adsorption tank 1 and the fourth pipeline 204 of the second hollow fiber tubular membrane adsorption tank 2, and The other end of the exhaust delivery pipeline 50 is connected to an exhaust device 51, so that the first hollow fiber tubular membrane adsorption tank 1 or the second hollow fiber tubular membrane adsorption tank 2 can absorb oil and gas to produce The adsorbed gas enters the exhaust delivery pipeline 50 from the second pipeline 102 or the fourth pipeline 204 (as shown in FIGS. 1 and 2 ), and then passes through the exhaust delivery pipeline 50 Exhaust equipment 51 that is connected to the other end of the exhaust equipment 51 is discharged, and wherein this exhaust equipment 51 is wherein any one of chimney, exhaust pipe, or other exhaust facilities, does not refer to the embodiment content of the present utility model limit.

In addition, one end of the desorption first discharge pipeline 30 is connected with the first communication pipeline 21, and the desorption first discharge pipeline 30 is provided with a desorption first discharge control valve 32 (as shown in Figures 1 to 4 ), and the desorption first discharge control valve 32 can be used as any one of a check valve, an electric valve, and a pneumatic valve to control the output. The valve 32 is connected to a gas output control pipeline 81 (as shown in FIG. 4 ), and the gas output control pipeline 81 is connected to a pressure-stabilizing barrel 80, and the pressure-stabilizing barrel 80 outputs compressed gas to the gas output control pipeline 81 Inside, wherein the compressed gas is compressed air, and the switch of the desorption first discharge control valve 32 is controlled by the compressed gas. And this desorption first discharge pipeline 30 is provided with a vacuum pump 31, and the other end of this desorption first discharge pipeline 30 is connected to a first processing equipment 34, wherein this first processing equipment 34 can be diffuser (not shown in the figure), the air diffuser is placed under the liquid level of any one of a sewage pool or a dirty oil tank, so as to store the concentrated oil and gas in the sewage pool or the dirty oil tank for subsequent recovery or recycling. use. In addition, the first processing equipment 34 can also be any one of condensing equipment, washing equipment, and incinerator equipment (not shown in the figure) except the air diffuser, wherein the condensing equipment can be a condenser or a condensation box, etc. The washing equipment can be a washing tower or a washing purifier, and the incinerator equipment can be a direct-fired incinerator (TO), a regenerative incinerator (RTO) or a catalytic furnace.

After the first hollow fiber tubular membrane adsorption tank 1 or the second hollow fiber tubular membrane adsorption tank 2 desorbs the absorbed oil and gas into concentrated oil and gas, the first pipeline 101 or the third pipeline 203 to be transported into the first communication pipeline 21, and then transported to the desorption first discharge pipeline 30 through the first communication pipeline 21, and then the desorption first discharge pipeline 30 Concentrated oil and gas are pushed into the first processing equipment 34 connected to the other end of the desorption first discharge pipeline 30 by the vacuum pump 31 in a vacuum mode so-called vacuum swing adsorption (vaccum swingadsorption; VSA) (as shown in Figure 1 and shown in Figure 2) to facilitate subsequent recycling, reuse, or decomposition into harmless substances by destructive high-temperature combustion. Moreover, a vacuum pump output control valve 33 is provided between the vacuum pump 31 of the desorption first discharge pipeline 30 and the first processing equipment 34, and the vacuum pump output control valve 33 can be adopted as a check valve, an electric valve, a pneumatic valve, etc. Any one of the valves is used to control the output of the concentrated oil and gas, and the pneumatic valve is used in the above-mentioned way that the vacuum pump output control valve 33 is connected with a gas output control pipeline 81 (as shown in Figure 4), and the gas output The control pipeline 81 is connected with a pressure-stabilizing barrel 80, and the pressure-stabilizing barrel 80 outputs compressed gas to the gas output control pipeline 81, wherein the compressed gas is compressed air, and the vacuum pump output control valve is controlled by the compressed gas 33 switches.

In addition, the cooling bypass pipeline 60 is provided with a heat exchanger 63, and the heat exchanger 63 has a cold side channel 631 and a hot side channel 632, wherein the heat exchanger 63 is adopted as a water-to-air heat exchanger, that is, through Water and gas are used for heat exchange, and the cooling bypass pipeline 60 is provided with a cooling first bypass pipeline 61 and a cooling second bypass pipeline 62, wherein one end of the cooling first bypass pipeline 61 is connected to the desorption second bypass pipeline. One end of the vacuum pump 31 of a discharge pipeline 30 forms a connection, and the other end of the cooling first bypass pipeline 61 is connected with one end of the hot side channel 632 of the heat exchanger 63, and the cooling second bypass pipeline 62 One end is connected with the other end of the hot side channel 632 of the heat exchanger 63 (as shown in Figures 1 to 4), and the other end of the cooling second bypass pipeline 62 is connected with the first desorption discharge pipeline 30. The other end of the vacuum pump 31 forms a connection, wherein the cooling second bypass line 62 is provided with a cooling unit 64, a water tank 65 and a water pump 66, wherein the cooling unit 64 consists of a direct expansion refrigerant compressor, a refrigerant evaporator, Composed of a refrigerant condenser and a cooling and heating cooling fan (not shown), to reduce the temperature in the cooling second bypass pipeline 62 through the cooling unit 64, so that the water in the cooling second bypass pipeline 62 To achieve the cooling effect, the water tank 65 is provided with a water inlet pipe 651 and a water outlet pipe 652, and the water inlet pipe 651 injects water into the water tank 65, and the water outlet pipe 652 outputs water into the cooling second bypass pipe 62, The water pump 66 pressurizes the water in the cooling second bypass pipeline 62 for delivery, and supplies the supplementary water through the water tank 65, so that the water can flow through the cooling first bypass pipeline 61 and pass through the cooling first bypass pipeline 61. The hot side channel 632 of the heat exchanger 63 flows through the cooling second bypass pipeline 62, and then flows through the vacuum pump 31, so that the vacuum pump 31 can pass through the cooling first bypass pipeline 61 and the cooling second bypass pipeline. The water in the road 62 is used for water circulation, and the heat exchange is performed through the heat exchanger 63, so that the vacuum pump 31 can be cooled down during operation.

In addition, one end of the heat exchange delivery pipeline 70 is connected to one end of the cold side channel 631 of the heat exchanger 63, and the other end of the cold side channel 631 of the heat exchanger 63 is connected to an external air 73, wherein the external air 73 is any one of air and clean gas (such as nitrogen, oxygen, etc.), so as to exchange heat with water through the external air 73, and the heat exchanged gas is passed through the heat exchange delivery pipe through the heat exchanger 63 70 to the second communication pipeline 22, and the second communication pipeline 22 to the fourth pipeline 204 or the second pipeline 102, and then through the fourth pipeline 204 enters the second hollow fiber tubular membrane adsorption tank 2 or the second pipeline 102 enters the first hollow fiber tubular membrane adsorption tank 1, and the heat exchanged gas will adhere to the first The remaining attachments in the hollow fiber tubular membrane adsorption tank 1 or the second hollow fiber tubular membrane adsorption tank 2 carry out high-temperature thermal desorption (as shown in Figures 3 and 4), and the so-called residual attachments In addition to hydrocarbons, oil and gas also contain other organic substances, and some organic substances are easy to adhere to the hollow fiber tubular membrane adsorption tank during the adsorption process and desorption process, and are not easy to desorb. Therefore, it is necessary to use a higher temperature to desorb the remaining attachments (organic substances, etc.) at high temperature. Wherein the heat exchange delivery pipeline 70 is provided with a blower fan 71 and a heater 72 (as shown in Figure 1 to Figure 4), to push and heat the gas after the heat exchange in the heat exchange delivery pipeline 70, wherein the heating The device 72 adopts any one of a gas heater, an electric heater, and a heat medium oil heater, so that the temperature of the gas after the heat exchange can be raised to meet the high temperature requirement for thermal desorption.

In addition, one end of the desorption second discharge pipeline 40 is connected to the first communication pipeline 21, and the other end of the desorption second discharge pipeline 40 is connected to a second processing device 41, wherein the second processing device 41 is any one of incinerator equipment, washing equipment, and activated carbon bed equipment (not shown), wherein the activated carbon bed equipment can be devices such as activated carbon purification treatment or activated carbon adsorption bed, and the washing equipment can be a washing tower or Devices such as scrubbers and purifiers, and incinerator equipment can be direct-fired incinerators (TO), regenerative incinerators (RTO) or catalytic furnaces. And the second hollow fiber tubular membrane adsorption tank 2 or the first hollow fiber tubular membrane adsorption tank 1 passes the gas after thermal desorption containing attachments through the third pipeline 203 or the first pipeline 101 to the first communication pipeline 21, and through the first communication pipeline 21 to enter the desorption second discharge pipeline 40, and then the thermally desorbed gas containing attachments is released from the desorption The second discharge pipeline 40 is output to the second processing equipment 41 connected to the other end, and the subsequent treatment is carried out through the second processing equipment 41, so that in addition to the performance of high temperature thermal desorption, it can also achieve purification again Purpose of processing. Wherein the desorption second discharge pipeline 40 is provided with a desorption second discharge control valve 42 (as shown in Figures 1 to 4), and the desorption second discharge control valve 42 can be adopted as a check valve, an electric valve , any one of the pneumatic valves to control the output, and the above-mentioned method of using the pneumatic valve is that the desorption second discharge control valve 42 is connected with a gas output control pipeline 81 (as shown in Figure 4), the gas The output control pipeline 81 is connected with a pressure-stabilizing barrel 80, and the pressure-stabilizing barrel 80 outputs compressed gas into the gas output control pipeline 81, wherein the compressed gas is compressed air, and the desorption second stage is controlled by the compressed gas. Two discharge control valve 42 switches.

In addition, a vacuum pump bypass pipeline 90 is provided between the vacuum pump 31 of the first desorption pipeline 30 and the first processing equipment 34, and one end of the vacuum pump bypass pipeline 90 is connected with the first desorption pipeline 30 , and the other end of the vacuum pump bypass pipeline 90 is connected to the desorption second discharge pipeline 40 or directly connected to the second processing equipment 41, wherein the vacuum pump bypass pipeline 90 is provided with a vacuum pump bypass control valve 91 (such as 1 to 4), and the vacuum pump bypass control valve 91 can be used as any one of a check valve, an electric valve, and a pneumatic valve to control the gas flow direction of the vacuum pump bypass control valve 91. The way of the pneumatic valve is that the bypass control valve 91 of the vacuum pump is connected with a gas output control pipeline 81 (as shown in Figure 4), and the gas output control pipeline 81 is connected with a pressure-stabilizing barrel 80, and the pressure-stabilizing barrel 80 outputs compressed gas to the gas output control pipeline 81, wherein the compressed gas is compressed air, and the switch of the bypass control valve 91 of the vacuum pump is controlled by the compressed gas. When the concentrated oil and gas output by the vacuum pump 31 exceeds the allowable processing range of the first processing equipment 34, it can be transported to the desorption second discharge pipeline 40 through the vacuum pump bypass pipeline 90 or directly connected to the second processing equipment 41 for processing to prevent the condensed oil and gas from leaking out.

Furthermore, the utility model is mainly when the first hollow fiber tubular membrane adsorption tank 1 and the second hollow fiber tubular membrane adsorption tank 2 are adsorbed and desorbed for a period of time, and the oil and gas are passed through the first pipeline 101 Enter this first hollow fiber tubular membrane adsorption tank 1 and carry out adsorption (as shown in Figure 1) after changing into this second hollow fiber tubular membrane adsorption tank 2 by the 3rd pipeline 203 and carry out adsorption (as shown in Figure 2 ), and when it is found that the adsorption efficiency of the second hollow fiber tubular membrane adsorption tank 2 decreases, the oil and gas transported through the third pipeline 203 is suspended to be transported to the second hollow fiber tubular membrane adsorption tank 2, wherein the suspension The time of 15 minutes, 20 minutes, 30 minutes, 40 minutes, 50 minutes, etc., is not limited to the above-mentioned time, and the heat exchanged gas generated by the heat exchanger 63 can be used to attach to the second hollow fiber tube The attachments remaining in the type membrane adsorption tank 2 are subjected to high-temperature thermal desorption (as shown in Figure 3 ), and then the gas after thermal desorption containing the attachments is transported to the first communication pipe through the third pipeline 203 21, and enter the desorption second discharge pipeline 40 through the first communication pipeline 21, and output to the post-processing equipment 41 connected to the other end for processing. Conversely, when oil and gas enter the second hollow fiber tubular membrane adsorption tank 2 from the third pipeline 203 for adsorption instead of entering the first hollow fiber tubular membrane adsorption tank 1 from the first pipeline 101 for adsorption, it is found that When the adsorption performance of the first hollow fiber tubular membrane adsorption tank 1 decreases, the oil and gas transported through the third pipeline 203 can also be temporarily transported to the first hollow fiber tubular membrane adsorption tank 1 according to the above-mentioned treatment method. , and carry out high-temperature thermal desorption (as shown in Figure 4 ) of the residue remaining in the first hollow fiber tubular membrane adsorption tank 1, and then pass the gas after thermal desorption containing the deposit through the first pipeline 101 to be transported into the first communication pipeline 21, so that the first hollow fiber tubular membrane adsorption tank or the second hollow fiber tubular membrane adsorption tank can restore the adsorption performance and desorption performance, so as to improve the treatment of oil and gas The efficiency, and then increase the overall practicality.

The period of time referred to above is 0.5 hour, 1 hour, 1.5 hour, 2 hours, etc., but not limited to the above-mentioned time.

Through the above detailed description, those skilled in the art can understand that the utility model can indeed achieve the above-mentioned purpose, and has actually complied with the provisions of the patent law, so a patent application is filed.

In addition, what is described above is only a preferred embodiment of the utility model, and should not limit the scope of implementation of the utility model; Equivalent changes and modifications should still fall within the scope covered by the utility model patent.

Claims (30)

1. An adsorption tube type membrane oil and gas treatment thermal desorption system, characterized in that it comprises: A first hollow fiber tubular membrane adsorption tank, the first hollow fiber tubular membrane adsorption tank is filled with a plurality of tubular hollow fiber tubular membrane adsorption materials, the first hollow fiber tubular membrane adsorption tank is set a first pipeline and a second pipeline; A second hollow fiber tubular membrane adsorption tank, the second hollow fiber tubular membrane adsorption tank is filled with a plurality of tubular hollow fiber tubular membrane adsorption materials, the second hollow fiber tubular membrane adsorption tank is set a third pipeline and a fourth pipeline; An oil and gas delivery pipeline, one end of the oil and gas delivery pipeline is connected to the first pipeline of the first hollow fiber tubular membrane adsorption tank and the third pipeline of the second hollow fiber tubular membrane adsorption tank, the oil and gas The other end of the delivery pipeline is connected to an oil and gas generating place; A first communication pipeline, one end of the first communication pipeline is connected to the first pipeline of the first hollow fiber tubular membrane adsorption tank, and the other end of the first communication pipeline is connected to the second hollow fiber tubular membrane adsorption tank. The third pipeline connection of the membrane adsorption tank; A desorption first discharge pipeline, one end of the desorption first discharge pipeline is connected to the first communication pipeline, the other end of the desorption first discharge pipeline is connected to a first processing device, the desorption A vacuum pump is provided on the first discharge pipeline; A desorption second discharge pipeline, one end of the desorption second discharge pipeline is connected to the first communication pipeline, and the other end of the desorption second discharge pipeline is connected to a second processing device; an exhaust delivery pipeline, one end of the exhaust delivery pipeline is connected to the second pipeline of the first hollow fiber tubular membrane adsorption tank and the fourth pipeline of the second hollow fiber tubular membrane adsorption tank, The other end of the exhaust delivery pipeline is connected to an exhaust device; A second communication pipeline, one end of the second communication pipeline is connected to the second pipeline of the first hollow fiber tubular membrane adsorption tank, and the other end of the second communication pipeline is connected to the second hollow fiber tubular membrane adsorption tank. The fourth pipeline connection of the membrane adsorption tank; A cooling bypass pipeline, a heat exchanger is provided on the cooling bypass pipeline, the heat exchanger has a cold side channel and a hot side channel, the cooling bypass pipeline is provided with a cooling first bypass pipeline and a cooling second bypass pipeline One end of the cooling first bypass pipeline is connected to one end of the vacuum pump of the first desorption discharge pipeline, and the other end of the cooling first bypass pipeline is connected to one end of the hot side channel of the heat exchanger, One end of the cooling second bypass pipeline is connected to the other end of the hot side channel of the heat exchanger, and the other end of the cooling second bypass pipeline is connected to the other end of the vacuum pump of the desorption first discharge pipeline; as well as A heat exchange delivery pipeline, one end of the heat exchange delivery pipeline is connected to one end of the cold side channel of the heat exchanger, and the other end of the heat exchange delivery pipeline is connected to the second communication pipeline. 2. The adsorption tube type membrane oil gas treatment thermal desorption system according to claim 1, characterized in that a vacuum pump bypass line is further provided between the vacuum pump of the desorption first discharge line and the first processing equipment, One end of the bypass line of the vacuum pump is connected to the first discharge line for desorption, and the other end of the bypass line of the vacuum pump is connected to the second discharge line for desorption. 3. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 2, characterized in that, the vacuum pump bypass pipeline is further provided with a vacuum pump bypass control valve to control the output. 4. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 3, characterized in that, the vacuum pump bypass control valve is further connected with a gas output control pipeline, and the gas output control pipeline is connected with a pressure regulator barrel A connection is formed, the pressure-stabilizing barrel outputs compressed gas into the gas output control pipeline, and the switch of the bypass control valve of the vacuum pump is controlled by the compressed gas. 5. The adsorption tube type membrane oil gas treatment thermal desorption system according to claim 1, characterized in that, the desorption first discharge pipeline is further provided with a desorption first discharge control valve to control the output. 6. The adsorption tubular membrane oil gas treatment thermal desorption system according to claim 5, characterized in that, the desorption first discharge control valve is further connected to a gas output control pipeline, and the gas output control pipeline is connected to a The pressure-stabilizing barrel forms a connection, and the pressure-stabilizing barrel outputs compressed gas into the gas output control pipeline, and the switch of the desorption first discharge control valve is controlled by the compressed gas. 7. The adsorption tube type membrane oil gas treatment thermal desorption system according to claim 1, characterized in that, the desorption second discharge pipeline is further provided with a desorption second discharge control valve to control the output. 8. The adsorption tubular membrane oil gas treatment thermal desorption system according to claim 7, characterized in that, the desorption second discharge control valve is further connected to a gas output control pipeline, and the gas output control pipeline is connected to a The pressure-stabilizing barrel forms a connection, and the pressure-stabilizing barrel outputs compressed gas into the gas output control pipeline, and the switch of the desorption second discharge control valve is controlled by the compressed gas. 9. The adsorption tube type membrane oil gas treatment thermal desorption system according to claim 1, characterized in that a vacuum pump output control valve is further provided between the vacuum pump of the desorption first discharge pipeline and the first processing equipment, to control the output. 10. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 9, characterized in that the vacuum pump output control valve is further connected to a gas output control pipeline, and the gas output control pipeline is connected to a pressure regulator barrel A connection is formed, the pressure regulator barrel outputs compressed gas into the gas output control pipeline, and the compressed gas is used to control the switch of the vacuum pump output control valve. 11. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that the first processing equipment is further an air diffuser, and the air diffuser is placed in a sewage pool or a dirty oil tank any kind of liquid. 12. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that the first processing equipment is further any one of condensation equipment, washing equipment, and incinerator equipment. 13. The adsorption tube type membrane oil gas treatment thermal desorption system according to claim 1, characterized in that the second treatment equipment is further any one of incinerator equipment, washing equipment, and activated carbon bed equipment. 14. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that the heat exchanger is further a water-to-air heat exchanger. 15. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that, the other end of the cold side channel of the heat exchanger is further connected with an external air. 16. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that, the heat exchange delivery pipeline is further provided with a heater. 17. The adsorption tube type membrane oil gas treatment thermal desorption system according to claim 16, characterized in that the heater is further any one of a gas heater, an electric heater, and a heat medium oil heater. 18. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that, the heat exchange delivery pipeline is further provided with a fan. 19. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that a cooling unit, a water tank and a water pump are further provided on the cooling second bypass pipeline, and the water tank is provided with a water inlet pipe and A water outlet pipe, the water inlet pipe injects water into the water tank, the water outlet pipe outputs water into the cooling second bypass pipeline, and the water pump pressurizes the water in the cooling second bypass pipeline for delivery. 20. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 19, characterized in that the cooling unit is further composed of a direct expansion refrigerant compressor, a refrigerant evaporator, a refrigerant condenser, and a cooling and heat radiation composed of fans. 21. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that the oil and gas delivery pipeline is further provided with an oil and gas delivery control valve to control oil and gas delivery. 22. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that the exhaust equipment is further any one of a chimney and an exhaust stack. 23. The adsorption tubular membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that, the first pipeline of the first hollow fiber tubular membrane adsorption tank is further provided with a first pipeline control valve, the The second pipeline of the first hollow fiber tubular membrane adsorption tank is further provided with a second pipeline control valve, and the third pipeline of the second hollow fiber tubular membrane adsorption tank is further provided with a third pipeline control valve. The fourth pipeline of the second hollow fiber tubular membrane adsorption tank is further provided with a fourth pipeline control valve. 24. The adsorption tubular membrane oil and gas treatment thermal desorption system according to claim 23, characterized in that the first pipeline control valve, the second pipeline control valve, the third pipeline control valve and the second pipeline control valve The four-pipeline control valve is further connected with a gas output control pipeline, and the gas output control pipeline is connected with a pressure-stabilizing barrel, and the pressure-stabilizing barrel outputs compressed gas into the gas output control pipeline, and the gas is discharged through the compressed gas. Control the switches of the first pipeline control valve, the second pipeline control valve, the third pipeline control valve and the fourth pipeline control valve. 25. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that the first communication pipeline is further provided with a first control valve and a second control valve. 26. The adsorption tubular membrane oil and gas treatment thermal desorption system according to claim 25, characterized in that the first control valve and the second control valve of the first communication pipeline are further connected with a gas output control pipeline, The gas output control pipeline is connected with a pressure-stabilizing tank, and the pressure-stabilizing tank outputs compressed gas into the gas output control pipeline, and the first control valve and the first control valve of the first communication pipeline are controlled by the compressed gas. Two controls the switch of the valve. 27. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that, the second communication pipeline is further provided with a first control valve and a second control valve. 28. The adsorption tubular membrane oil and gas treatment thermal desorption system according to claim 27, characterized in that the first control valve and the second control valve of the second communication pipeline are further connected with a gas output control pipeline, The gas output control pipeline is connected with a pressure-stabilizing barrel, and the pressure-stabilizing barrel outputs compressed gas into the gas output control pipeline, and the compressed gas is used to control the first control valve and the first control valve of the second communication pipeline. Two controls the switch of the valve. 29. The adsorption tubular membrane oil and gas treatment thermal desorption system according to claim 1, characterized in that, the second pipeline of the first hollow fiber tubular membrane adsorption tank is provided with a second extension pipeline, and the second The extension pipeline is provided with a second extension control valve and a second extension flow limiting valve, the fourth pipeline of the second hollow fiber tubular membrane adsorption tank is further provided with a fourth extension pipeline, and the fourth extension pipeline is set There is a fourth extension control valve and a fourth extension flow limiting valve. 30. The adsorption tube type membrane oil and gas treatment thermal desorption system according to claim 29, characterized in that, the second extension control valve and the fourth extension control valve are further connected to a gas output control pipeline, and the gas output The control pipeline is connected with a pressure-stabilizing barrel, and the pressure-stabilizing barrel outputs compressed gas into the gas output control pipeline, and the compressed gas is used to control the opening and closing of the second extension control valve and the fourth extension control valve.