Catalytic ozonation equipment for treating VOCs (Volatile Organic Compounds) in oil field

Abstract

The invention relates to the technical field of treatment of VOCs in oil fields, and discloses catalytic ozonation equipment for treatment of VOCs in oil fields, the catalytic ozonation equipment comprises a catalytic oxidation mechanism, a mixing mechanism, a filtering mechanism and a water collection driving mechanism, the input end of the filtering mechanism and the output end of the catalytic oxidation mechanism are both connected with a transition bin, and a water collection driving mechanism is arranged at the bottom of the catalytic oxidation mechanism; according to the catalytic ozonation equipment for treating the VOCs in the oil field, a multi-stage water vapor separation technology is adopted, and a vibration type water filtering film partition generates high-frequency vibration through spring reset, so that water drops on the surface are forcibly desorbed; the centrifugal water guide channel throws water generated by reaction to the crack by utilizing rotating centrifugal force, and the water is quickly discharged through the water guide groove; the linkage drainage system triggers automatic drainage through weight change of the water collecting bin, water retention is prevented from affecting the activity of the catalyst, and meanwhile airtightness is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of VOCs treatment in oil fields, and more specifically, to an ozone catalytic oxidation device for treating VOCs in oil fields. Background Art

[0002] Volatile organic compounds (VOCs) generated during oilfield exploitation and production are typical environmental pollutants. Their main components are hydrocarbon compounds (such as methane, benzene series, etc.), which are toxic, flammable and have the potential to generate ozone, posing a serious threat to the ecological environment and human health. At present, the treatment technologies for oilfield VOCs mainly include adsorption, combustion, biological and catalytic oxidation. Among them, catalytic oxidation has attracted much attention due to its advantages such as low reaction temperature, high efficiency and no secondary pollution.

[0003] In traditional catalytic oxidation technology, the catalyst is easily deactivated due to water vapor adsorption or impurity coverage, resulting in a decrease in reaction efficiency. For example, in the process of ozone synergistic catalytic oxidation, the water generated by the reaction will be retained on the catalyst surface, hindering the contact between the active sites and VOCs. At the same time, the high humidity environment may cause the catalyst structure to deteriorate. In addition, particulate matter (such as dust) carried in the gas is easy to clog the catalytic bed, increase the system pressure drop, and require frequent shutdowns for cleaning, affecting the ability to operate continuously. Existing equipment mostly uses static separation structures (such as fixed filters and gravity drainage), with limited water vapor separation efficiency and a lack of automated cleaning mechanisms for filter materials, resulting in high maintenance costs and complex operations. Summary of the invention

[0004] In order to overcome the above technical problems, the present invention proposes an ozone catalytic oxidation device for oil field VOCs treatment.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An ozone catalytic oxidation device for oil field VOCs treatment, comprising a catalytic oxidation mechanism, a mixing mechanism, a filtering mechanism and a water collection driving mechanism;

[0007] The two ends of the mixing mechanism are respectively connected to the catalytic oxidation mechanism and the filtering mechanism, and the input end of the filtering mechanism and the output end of the catalytic oxidation mechanism are both connected to a transition chamber;

[0008] A water collection drive mechanism is provided at the bottom of the catalytic oxidation mechanism, and the water collection drive mechanism comprises a support sleeve and a water collection chamber sleeved inside the support sleeve;

[0009] The catalytic oxidation mechanism comprises a catalytic oxidation chamber, wherein a plurality of catalytic oxidation ring cavities are arranged inside the catalytic oxidation chamber, and the interior of the catalytic oxidation ring cavities is filled with catalyst Pt / CeO2 or Pd-MnOx / AlO3;

[0010] The mixing mechanism comprises a nozzle for jetting air, and the filtering mechanism comprises a filter screen for filtering.

[0011] As a further optimization scheme of the present invention, the catalytic oxidation mechanism also includes an annular embedded cavity arranged in the middle of the inner wall of the catalytic oxidation bin, and several groups of catalytic oxidation components are evenly distributed inside the annular embedded cavity. The catalytic oxidation components include a first mounting ring, a catalytic oxidation ring cavity, an air inlet baffle and an air outlet baffle. The first mounting ring is a cylindrical structure, and its outer side is tightly mounted to the inner wall of the annular embedded cavity. The two ends of a group of catalytic oxidation ring cavities near the input end of the catalytic oxidation bin are respectively rotatably connected to the catalytic oxidation bin and the inner walls of the first mounting ring, and the two ends of the remaining several groups of catalytic oxidation ring cavities near the group of catalytic oxidation ring cavities are respectively rotatably connected to the inner walls of the corresponding first mounting ring.

[0012] As a further optimization scheme of the present invention, the air inlet baffle is located on the inner side of the input end of the catalytic oxidation ring cavity and is tightly connected to the catalytic oxidation ring cavity. The air outlet baffle is located at the end of the catalytic oxidation ring cavity and is rotatably connected to the end face of the catalytic oxidation ring cavity. A central axis that passes through the first mounting ring, the catalytic oxidation ring cavity, the air inlet baffle and the air outlet baffle is provided in the middle of the catalytic oxidation bin. The central axis is synchronously rotatably connected with the air inlet baffle, and the central axis is rotatably connected to the air outlet baffle by a bearing. A driving impeller is provided at one end of the central axis close to the input end of the catalytic oxidation bin.

[0013] As a further optimization scheme of the present invention, a gear ring is provided at the edge position of the air outlet baffle away from the catalytic oxidation ring cavity, a support frame is provided at the top of the inner wall of the first mounting ring, a transmission shaft is provided at the bottom of the support frame, a gear meshing with the gear ring is provided at one end of the transmission shaft, a transmission belt is provided between the central shaft and the transmission shaft, a water filter membrane partition is provided in the middle of the inner side of the first mounting ring, sliders are evenly provided on the outside of the water filter membrane partition, limiting cavities matching the sliders are evenly provided at the inner wall position of the first mounting ring, a first spring connected to the inner wall of the limiting cavity is provided at one end of the slider, the water filter membrane partition is sleeved on the outside of the central shaft and slides horizontally, and a linkage component sleeved on the outside of the central shaft is provided at the middle position of the water filter membrane partition.

[0014] As a further optimization scheme of the present invention, the linkage assembly includes a second mounting ring, a pushing pin and a wedge ring. The wedge ring is tightly connected to the water filter membrane partition. The second mounting ring is sleeved on the outside of the central axis and tightly connected thereto. A pushing pin matching the wedge ring is provided at the edge position of the second mounting ring close to one side of the wedge ring.

[0015] As a further optimization scheme of the present invention, the mixing mechanism also includes a mixing chamber interconnected with the input end of the catalytic oxidation chamber, an air ring is arranged inside the mixing chamber, nozzles are evenly arranged on the side of the air ring close to the driving impeller, the nozzles are obliquely distributed, and the outlets thereof are aligned with the blade positions of the driving impeller, and the high-pressure ozone sprayed from the nozzle drives the impeller to rotate, and an air inlet pipe interconnected with the air ring is arranged on the outside of the mixing chamber.

[0016] As a further optimization scheme of the present invention, the filter mechanism also includes a filter bin that is interconnected with the mixing bin, the inner wall of the filter bin being horizontally slidably provided with a filter screen plate, a second spring being evenly provided at an edge position of one side of the filter screen plate, the other end of the second spring being tightly connected to the inner wall of the filter bin, a winding shaft that runs through the bottom of the filter bin is provided in the middle of the input end of the filter bin, a plurality of groups of first rope pulleys are provided on the outside of the winding shaft, a first traction rope connected to the filter screen plate is wound around the outside of the first rope pulley, a second rope pulley is provided at the bottom of the winding shaft, a second traction rope is wound around the outside of the second rope pulley, a steering wheel is provided on the outside of the support sleeve bin, the other end of the second traction rope bypasses the steering wheel and is interconnected with the bottom of the water collection bin, a discharge bin is provided at the bottom of the filter bin, and a discharge port is connected between the top of the discharge bin and the interior of the filter bin.

[0017] As a further optimization scheme of the present invention, the water collection drive mechanism also includes a displacement chute evenly arranged at the inner wall of the supporting sleeve, and the outer side of the water collection bin is evenly provided with a displacement slider that slides up and down inside the displacement chute, and a third spring is arranged at the bottom of the displacement slider, and the bottom of the third spring is fastened to the bottom end of the displacement chute, and a drain pipe is arranged at the bottom of the water collection bin, and a control component that is interconnected with the drain pipe is arranged at the bottom of the water collection bin.

[0018] As a further optimization scheme of the present invention, the control component includes a fourth spring fastened to the bottom of the catalytic oxidation bin, a blocking cover is provided at the bottom of the fourth spring, a drainage hole connected to a drainage pipe is provided at the bottom of the water collecting bin, a limiting tube cover is provided near the drainage hole inside the water collecting bin and is sleeved on the top of the drainage hole, and through holes are evenly opened at the bottom of the limiting tube cover, and the blocking cover is sleeved inside the limiting tube cover.

[0019] As a further optimization scheme of the present invention, a water guide groove is provided at the bottom of the outer side of the first mounting ring, a drainage hole interconnected with the water guide groove is provided at the bottom of the inner side of the first mounting ring, a water outlet port interconnected with the water guide groove is provided at the bottom of the catalytic oxidation bin, a water collecting component corresponding to the water outlet port is provided at a position near the water outlet port at the bottom of the catalytic oxidation bin, the water collecting component includes a water collecting hopper fastened to the bottom of the catalytic oxidation bin, upper partitions are provided at both ends of the top of the inner wall of the water collecting hopper, a water outlet is provided on one side of the water collecting hopper, and the position height of the water outlet is higher than the position height of the bottom of the upper partition.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention adopts multi-stage water vapor separation technology: the vibrating water filter membrane partition generates high-frequency vibration through spring reset to force the desorption of surface water droplets; the centrifugal water channel uses the rotating centrifugal force to throw the water generated by the reaction into the gap and quickly discharge it through the water channel; the linkage drainage system triggers automatic drainage through the weight change of the water collection bin to avoid water retention affecting the activity of the catalyst while ensuring air tightness.

[0022] 2. The present invention uses the mechanical linkage of water collection bin, traction rope and filter screen, uses the gravity of water flow to drive the filter screen to move back and forth, and combines the impact of reverse airflow to automatically remove surface dust, thereby solving the pain points of traditional filter screens that are easy to clog and require shutdown for maintenance, and achieving continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 The three-dimensional structure of the present invention is cut away Figure 1 ;

[0025] Figure 3 The three-dimensional structure of the present invention is cut away Figure 2 ;

[0026] Figure 4 It is an enlarged schematic diagram of the connection structure of the mixing mechanism and the filtering mechanism in the present invention;

[0027] Figure 5 It is an exploded schematic diagram of the cross-sectional view of the connection structure between the support sleeve and the water collection bin in the present invention;

[0028] Figure 6 It is an enlarged cross-sectional view of the internal structure of the water collecting bin in the present invention;

[0029] Figure 7 It is an enlarged cross-sectional view of the internal connection structure of the catalytic oxidation bin in the present invention;

[0030] Figure 8It is an enlarged cross-sectional view of the internal structure of the catalytic oxidation bin in the present invention;

[0031] Fig. 9 It is an enlarged cross-sectional view of the internal structure of the water collection component in the present invention;

[0032] Fig.10 It is an enlarged and exploded sectional view of the connection structure of the components of the catalytic oxidation mechanism of the present invention;

[0033] Fig.11 It is an enlarged schematic diagram of the structure at the first mounting ring in the present invention;

[0034] Fig.12 It is an enlarged schematic diagram of the structure of the water filtration membrane partition in the present invention;

[0035] Fig.13 It is an enlarged schematic diagram of the structure of the linkage component in the present invention.

[0036] In the figure:

[0037] 100, catalytic oxidation mechanism; 200, mixing mechanism; 300, filtering mechanism; 400, transition chamber; 500, water collection driving mechanism;

[0038] 101, catalytic oxidation bin; 102, first mounting ring; 103, catalytic oxidation ring cavity; 104, driving impeller; 105, central axis; 106, annular embedded cavity; 107, water outlet port; 108, air inlet baffle; 109, air outlet baffle; 110, gear; 111, support frame; 112, transmission shaft; 113, first spring; 114, limit cavity; 115, drainage hole; 116, water filter membrane partition; 117, slider; 118, gear ring; 119, water guide groove; 120, linkage assembly; 121, transmission belt;

[0039] 1201, second mounting ring; 1202, push pin; 1203, wedge ring;

[0040] 201, mixing chamber; 202, air inlet pipe; 203, nozzle; 204, air ring;

[0041] 301, filter bin; 302, filter screen; 303, first rope wheel; 304, reel; 305, discharge port; 306, second rope wheel; 307, discharge bin; 308, first traction rope; 309, second spring; 310, second traction rope; 311, steering wheel;

[0042] 501, support sleeve; 502, water collection chamber; 503, third spring; 504, displacement slider; 505, drain pipe; 506, control component; 507, displacement chute; 508, water collection component.

[0043] 5061, fourth spring; 5062, limit tube cover; 5063, blocking cover; 5064, drainage through hole;

[0044] 5081. water collecting bucket; 5082. upper partition; 5083. water outlet. DETAILED DESCRIPTION

[0045] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0046] Example 1

[0047] like Figures 1 to 3 As shown, an ozone catalytic oxidation device for oil field VOCs treatment includes a catalytic oxidation mechanism 100, a mixing mechanism 200, a filtering mechanism 300 and a water collection driving mechanism 500;

[0048] The two ends of the mixing mechanism 200 are respectively connected to the catalytic oxidation mechanism 100 and the filtering mechanism 300, and the input end of the filtering mechanism 300 and the output end of the catalytic oxidation mechanism 100 are both connected to the transition chamber 400;

[0049] A water collection drive mechanism 500 is provided at the bottom of the catalytic oxidation mechanism 100. The water collection drive mechanism 500 includes a support sleeve 501 and a water collection chamber 502 sleeved inside the support sleeve 501.

[0050] like Figures 1 to 3 , Figures 7 to 13 As shown, the catalytic oxidation mechanism 100 includes a catalytic oxidation chamber 101, and a plurality of catalytic oxidation ring cavities 103 are arranged inside the catalytic oxidation chamber 101, and the interior of the catalytic oxidation ring cavities 103 is filled with catalyst Pt / CeO2 or Pd-MnOx / AlO3;

[0051] The catalytic oxidation mechanism 100 also includes an annular embedded cavity 106 arranged in the middle of the inner wall of the catalytic oxidation bin 101, and a plurality of catalytic oxidation components are evenly distributed inside the annular embedded cavity 106. The catalytic oxidation components include a first mounting ring 102, a catalytic oxidation ring cavity 103, an air inlet baffle 108 and an air outlet baffle 109. The first mounting ring 102 is a cylindrical structure, and its outer side is fixedly installed with the inner wall of the annular embedded cavity 106. The two ends of a group of catalytic oxidation ring cavities 103 near the input end of the catalytic oxidation bin 101 are respectively rotatably connected to the catalytic oxidation bin 101 and the inner wall of the first mounting ring 102, and the two ends of the remaining plurality of catalytic oxidation ring cavities 103 near the group of catalytic oxidation ring cavities 103 are respectively connected to the inner wall of the catalytic oxidation bin 101 and the first mounting ring 102. The inner wall of the corresponding first mounting ring 102 is rotatably connected, the air inlet baffle 108 is located on the inner side of the input end of the catalytic oxidation ring cavity 103 and is tightly connected to the catalytic oxidation ring cavity 103, the air outlet baffle 109 is located at the end of the catalytic oxidation ring cavity 103, and is rotatably connected to the end face of the catalytic oxidation ring cavity 103, and a central axis 105 that passes through the first mounting ring 102, the catalytic oxidation ring cavity 103, the air inlet baffle 108 and the air outlet baffle 109 is provided in the middle of the catalytic oxidation bin 101, the central axis 105 is synchronously rotatably connected with the air inlet baffle 108, the central axis 105 and the air outlet baffle 109 are rotatably connected between the bearings, and the end of the central axis 105 close to the input end of the catalytic oxidation bin 101 is provided A driving impeller 104 is provided, a toothed ring 118 is arranged at the edge of the air outlet baffle 109 away from the catalytic oxidation ring cavity 103, a support frame 111 is arranged at the top of the inner wall of the first mounting ring 102, a transmission shaft 112 is arranged at the bottom of the support frame 111, a gear 110 meshing with the toothed ring 118 is arranged at one end of the transmission shaft 112, a transmission belt 121 is arranged between the central axis 105 and the transmission shaft 112, a water filter membrane partition 116 is arranged in the middle of the inner side of the first mounting ring 102, sliders 117 are evenly arranged on the outer side of the water filter membrane partition 116, and a limiting cavity 114 adapted to the slider 117 is evenly arranged at the inner wall position of the first mounting ring 102, and the slider 11 One end of the filter membrane 110 is provided with a first spring 113 connected to the inner wall of the limiting cavity 114, the filter membrane partition 116 is sleeved on the outside of the central axis 105 and slides horizontally, and a linkage assembly 120 sleeved on the outside of the central axis 105 is provided at the middle position of the filter membrane partition 116. The linkage assembly 120 includes a second mounting ring 1201, a push pin 1202 and a wedge ring 1203. The wedge ring 1203 is tightly connected to the filter membrane partition 116. The second mounting ring 1201 is sleeved on the outside of the central axis 105 and tightly connected thereto. A push pin 1202 adapted to the wedge ring 1203 is provided at the edge position of the second mounting ring 1201 close to one side of the wedge ring 1203;

[0052] like Figures 1 to 4As shown, the mixing mechanism 200 includes a nozzle 203 for jetting, the filtering mechanism 300 includes a filter screen 302 for filtering, and the mixing mechanism 200 also includes a mixing chamber 201 interconnected with the input end of the catalytic oxidation chamber 101, and an air ring 204 is arranged inside the mixing chamber 201. The nozzles 203 are evenly arranged on one side of the air ring 204 close to the driving impeller 104. The nozzles 203 are obliquely distributed, and their outlets are aligned with the blade positions of the driving impeller 104. The high-pressure ozone sprayed by the nozzles 203 blows the driving impeller 104 to rotate, and the outer side of the mixing chamber 201 is provided with an air inlet pipe 202 interconnected with the air ring 204;

[0053] like Figures 1 to 4 As shown, the filtering mechanism 300 also includes a filtering chamber 301 interconnected with the mixing chamber 201, a filtering screen plate 302 is horizontally slidably arranged on the inner wall of the filtering chamber 301, a second spring 309 is evenly arranged at the edge position of one side of the filtering screen plate 302, the other end of the second spring 309 is tightly connected to the inner wall of the filtering chamber 301, a winding shaft 304 is arranged in the middle of the input end of the filtering chamber 301 and penetrates to the bottom of the filtering chamber 301, and a plurality of first rope wheels 303 are arranged on the outer side of the winding shaft 304, and the first rope wheels 303 are arranged on the outer side of the first rope wheels 303. A first traction rope 308 connected to the filter screen plate 302 is wound around the outside, a second rope wheel 306 is arranged at the bottom end of the reel 304, a second traction rope 310 is wound around the outside of the second rope wheel 306, a steering wheel 311 is arranged at the outside of the support bin 501, the other end of the second traction rope 310 passes over the steering wheel 311 and is connected to the bottom of the water collection bin 502, a discharge bin 307 is arranged at the bottom of the filter bin 301, and a discharge port 305 is connected between the top of the discharge bin 307 and the inside of the filter bin 301;

[0054] like Figures 1 to 3 , Figures 5 to 9As shown, the water collection drive mechanism 500 also includes a displacement chute 507 uniformly arranged at the inner wall position of the support sleeve 501, and a displacement slider 504 that slides up and down in the displacement chute 507 is uniformly arranged on the outer side of the water collection bin 502. A third spring 503 is arranged at the bottom of the displacement slider 504, and the bottom of the third spring 503 is fastened to the bottom end of the displacement chute 507. A drainage pipe 505 is arranged at the bottom of the water collection bin 502, and a control component 506 that is interconnected with the drainage pipe 505 is arranged at the bottom of the water collection bin 502. The control assembly 506 includes a fourth spring 5061 that is fastened to the bottom of the catalytic oxidation bin 101, a blocking cover 5063 is provided at the bottom of the fourth spring 5061, a drainage through hole 5064 that is interconnected with the drainage pipe 505 is provided at the bottom of the water collection bin 502, a limiting cylinder cover 5062 that is sleeved on the top of the drainage through hole 5064 is provided at a position near the drainage through hole 5064 inside the water collection bin 502, and through holes are evenly opened at the bottom of the limiting cylinder cover 5062, and the blocking cover 5063 is sleeved inside the limiting cylinder cover 5062;

[0055] like Figures 7 to 11 As shown, a water guide groove 119 is provided at the bottom of the outer side of the first mounting ring 102, a drainage hole 115 interconnected with the water guide groove 119 is provided at the bottom of the inner side of the first mounting ring 102, a water outlet port 107 interconnected with the water guide groove 119 is provided at the bottom of the catalytic oxidation bin 101, a water collecting component 508 corresponding to the water outlet port 107 is provided at the bottom of the catalytic oxidation bin 101 near the water outlet port 107, the water collecting component 508 includes a water collecting bucket 5081 fastened to the bottom of the catalytic oxidation bin 101, upper partitions 5082 are provided at both ends of the top of the inner wall of the water collecting bucket 5081, a water outlet 5083 is provided on one side of the water collecting bucket 5081, and the position height of the water outlet 5083 is higher than the position height of the bottom of the upper partition 5082.

[0056] The use process of the ozone catalytic oxidation device for oilfield VOCs treatment proposed in this embodiment is as follows: when the device is in use, it is connected to the air inlet pipe 202 through an external ozone supply device, and at the same time, the transition chamber 400 located at one end of the filter chamber 301 is connected to the oilfield VOCs gas to be treated, and the transition chamber 400 located at one end of the catalytic oxidation chamber 101 is connected to the exhaust gas guide mechanism;

[0057] The first mounting ring 102 is filled with a catalyst Pt / CeO2 or Pd-MnOx / AlO3, and both ends of the first mounting ring 102 are sealed by an air inlet baffle 108 and an air outlet baffle 109 respectively;

[0058] When the gas to be treated is input from one end of the filter chamber 301, the dust particles and impurities contained in the gas are cleaned by the filter screen 302, thereby realizing the preliminary filtering function of the gas. Further, the gas to be treated enters the interior of the mixing chamber 201. At this time, the air inlet pipe 202 transports the external high-pressure ozone to the interior of the air ring 204 and sprays it from the position of the nozzle 203, and then the impeller 104 is driven to rotate by the high-pressure airflow, and the central shaft 105 is driven to rotate;

[0059] Through the flow of high-pressure airflow, ozone is mixed with the gas to be treated and enters the interior of the first mounting ring 102 through the air inlet baffle 108 to perform a catalytic oxidation reaction with the catalyst Pt / CeO2 or Pd-MnOx / AlO3;

[0060] Since the oilfield VOCs produce CO2 and H2O during the catalytic oxidation process, the CO2 gas further passes through the gas outlet baffle 109 and continues to flow, a part of the water is retained on the surface of the catalyst, and a part of it flows with the air flow to the position of the first spring 113, and the water and gas are separated by the first spring 113, so that the water in the gas is trapped on the surface of the first spring 113, but the water and gas separation is not 100% complete filtration, so a multi-stage separation method is used for filtration;

[0061] During the rotation of the central shaft 105, the central shaft 105 drives the transmission belt 121 and the second mounting ring 1201 to rotate respectively, and the rotation of the transmission belt 121 drives the gear 110 at one end of the transmission shaft 112 to rotate, and the rotation of the gear 110 drives the gear ring 118 meshing therewith to rotate, thereby driving the air outlet baffle 109 to rotate, realizing the staggered rotation of the air inlet baffle 108 and the air outlet baffle 109, thereby realizing the turbulence effect of the gas to be treated, and improving the treatment effect of the gas to be treated inside the catalytic oxidation ring cavity 103;

[0062] As the second mounting ring 1201 rotates, the push pin 1202 is driven to rotate accordingly, and the push pin 1202 squeezes one side of the wedge ring 1203, thereby causing the wedge ring 1203 to move horizontally, and the horizontal displacement of the wedge ring 1203 drives the water filter membrane partition 116 to move horizontally as a whole, thereby causing the slider 117 to squeeze the first spring 113 to compress and generate a rebound force. As the push pin 1202 is squeezed and displaced, when the push pin 1202 and the wedge ring 1203 are dislocated after one cycle of operation, the water filter membrane partition 116 is quickly reset under the action of the rebound force of the first spring 113, thereby generating a vibration effect, causing the water droplets attached to the water filter membrane partition 116 to fall off;

[0063] The fallen water droplets fall freely and gather at the position of the drainage hole 115 and the water guide groove 119. At the same time, while the central shaft 105 drives the catalytic oxidation ring cavity 103 to rotate as a whole, the water generated after catalytic oxidation inside the first mounting ring 102 usually flows through the catalytic oxidation ring cavity 103 to the gap position between the catalytic oxidation ring cavity 103 and the annular embedded cavity 106 through the centrifugal effect, and is further guided and gathered at the position of the water guide groove 119.

[0064] The collected water flow is introduced into the water outlet port 107 through the water guide groove 119 and falls into the water collecting bucket 5081. At this time, as the water flow continues to increase, the water level inside the water collecting bucket 5081 continues to increase, and then it is higher than the bottom of the upper partition 5082. When the water level further rises to the position of the water outlet 5083, it flows out from the position of the water outlet 5083, and then the gas to be treated is isolated by the water flow to prevent the gas flow from leaking from the position of the water outlet port 107. At the same time, in the initial state, water can be added to the inside of the water collecting bucket 5081 in advance;

[0065] Furthermore, water flows out through the water outlet 5083 and falls into the water collecting bin 502, and then continuously gathers in the water collecting bin 502. As the catalytic oxidation reaction continues, the amount of water increases continuously, and the increased amount of water causes the weight of the water collecting bin 502 to increase, thereby driving the water collecting bin 502 to move downward as a whole and compressing the third spring 503. At this time, the blocking cover 5063 at the bottom of the fourth spring 5061 has an adsorption and blocking effect on the top of the drainage through hole 5064, and then the fourth spring 5061 is continuously stretched. It should be particularly noted that the elastic coefficient of the fourth spring 5061 is smaller than the elastic coefficient of the third spring 503.

[0066] As the water collecting bin 502 moves downward, the second traction rope 310 is pulled to follow the displacement. The displacement of the second traction rope 310 drives the reel 304 in the middle of the second rope wheel 306 to rotate. The rotation of the reel 304 drives the first rope wheel 303 to reel in the first traction rope 308, thereby pulling the filter screen plate 302 to follow the displacement. The displacement of the filter screen plate 302 stretches the second spring 309. The dust particles at the bottom of the filter bin 301 are pushed to the position of the discharge port 305 through the displacement of the filter screen plate 302, and are collected and discharged through the discharge bin 307.

[0067] As the amount of water in the water collection bin 502 further increases, when the tensile force on the fourth spring 5061 is greater than the water pressure on the blocking cover 5063, the fourth spring 5061 pulls the blocking cover 5063 to move upward, opening the passage of the drainage through hole 5064, thereby allowing the water in the water collection bin 502 to flow from the bottom of the limiting cylinder cover 5062 into the drainage through hole 5064 and be discharged from the position of the drainage pipe 505;

[0068] At this time, the water flow is quickly discharged, so that the water collection bin 502 is quickly reset under the rebound force of the third spring 503, and the pulling effect on the second traction rope 310 is released, so that the filter screen 302 is reversely displaced under the rebound force of the second spring 309, and the filter screen 302 is affected by the reverse airflow, and the impurities attached to the surface of the filter screen 302 are blown off. At this time, due to the fast instantaneous displacement speed of the filter screen 302, the flow rate of the airflow to be processed is instantaneously less than the flow rate of the reverse airflow, so as to achieve the purpose of cleaning the dust on the surface of the filter screen 302;

[0069] Finally, through the coordination of the above components, the ozone catalytic oxidation function of oil field VOCs gas is realized, and the moisture attached to the catalyst is quickly removed to maintain the efficient catalytic oxidation. At the same time, the automatic cleaning function of the filter plate 302 is realized, thereby improving the practicality of the device.

[0070] The above describes the specific implementation methods of the embodiments of the present invention, but the embodiments of the present invention are not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms under the guidance of the embodiments of the present invention, all of which are protected by the embodiments of the present invention.

Claims

1. An ozone catalytic oxidation device for oil field VOCs treatment, characterized in that: It comprises a catalytic oxidation mechanism (100), a mixing mechanism (200), a filtering mechanism (300) and a water collection driving mechanism (500); The two ends of the mixing mechanism (200) are respectively connected to the catalytic oxidation mechanism (100) and the filtering mechanism (300), and the input end of the filtering mechanism (300) and the output end of the catalytic oxidation mechanism (100) are both connected to a transition chamber (400); A water collection drive mechanism (500) is provided at the bottom of the catalytic oxidation mechanism (100), and the water collection drive mechanism (500) comprises a supporting casing (501) and a water collection chamber (502) sleeved inside the supporting casing (501); The catalytic oxidation mechanism (100) comprises a catalytic oxidation chamber (101), a plurality of groups of catalytic oxidation annular cavities (103) are arranged inside the catalytic oxidation chamber (101), and the interior of the catalytic oxidation annular cavities (103) is filled with a catalyst Pt / CeO2 or Pd-MnOx / AlO3; The mixing mechanism (200) comprises a nozzle (203) for jetting air, and the filtering mechanism (300) comprises a filtering screen plate (302) for filtering.

2. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 1 is characterized in that: The catalytic oxidation mechanism (100) further comprises an annular embedded cavity (106) arranged in the middle of the inner wall of the catalytic oxidation bin (101), and a plurality of groups of catalytic oxidation components are evenly distributed inside the annular embedded cavity (106), and the catalytic oxidation components comprise a first mounting ring (102), a catalytic oxidation ring cavity (103), an air inlet baffle (108) and an air outlet baffle (109). The first mounting ring (102) is a cylindrical structure, and its outer side is fixedly mounted to the inner wall of the annular embedded cavity (106). The two ends of a group of the catalytic oxidation ring cavities (103) close to the input end of the catalytic oxidation bin (101) are respectively rotatably connected to the inner wall of the catalytic oxidation bin (101) and the first mounting ring (102), and the two ends of the remaining plurality of groups of the catalytic oxidation ring cavities (103) close to the group of the catalytic oxidation ring cavities (103) are respectively rotatably connected to the inner wall of the corresponding first mounting ring (102).

3. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 2 is characterized in that: The air inlet baffle (108) is located on the inner side of the input end of the catalytic oxidation ring cavity (103) and is tightly connected to the catalytic oxidation ring cavity (103); the air outlet baffle (109) is located at the end of the catalytic oxidation ring cavity (103) and is rotatably connected to the end surface of the catalytic oxidation ring cavity (103); a central axis (105) penetrating the first mounting ring (102), the catalytic oxidation ring cavity (103), the air inlet baffle (108) and the air outlet baffle (109) is provided in the middle of the catalytic oxidation bin (101); the central axis (105) is rotatably connected to the air inlet baffle (108); the central axis (105) is rotatably connected to the air outlet baffle (109) via a bearing; and a driving impeller (104) is provided at one end of the central axis (105) close to the input end of the catalytic oxidation bin (101).

4. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 3 is characterized in that: A toothed ring (118) is arranged at an edge position of the air outlet baffle (109) on a side away from the catalytic oxidation ring cavity (103); a support frame (111) is arranged at the top of the inner wall of the first mounting ring (102); a transmission shaft (112) is arranged at the bottom of the support frame (111); a gear (110) meshing with the toothed ring (118) is arranged at one end of the transmission shaft (112); a transmission belt (121) is arranged between the central shaft (105) and the transmission shaft (112); a water filter membrane partition (121) is arranged in the middle of the inner side of the first mounting ring (102); 16), sliders (117) are evenly arranged on the outside of the water filter membrane partition (116), and limiting cavities (114) adapted to the sliders (117) are evenly arranged on the inner wall of the first mounting ring (102), and a first spring (113) connected to the inner wall of the limiting cavity (114) is arranged at one end of the slider (117), and the first spring (113) is connected to the inner wall of the limiting cavity (114), and the water filter membrane partition (116) is sleeved on the outside of the central axis (105) and slides horizontally, and a linkage assembly (120) sleeved on the outside of the central axis (105) is arranged at the middle position of the water filter membrane partition (116).

5. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 4 is characterized in that: The linkage assembly (120) comprises a second mounting ring (1201), a pushing pin (1202) and a wedge ring (1203); the wedge ring (1203) is tightly connected to the water filter membrane partition (116); the second mounting ring (1201) is sleeved on the outside of the central axis (105) and tightly connected thereto; and a pushing pin (1202) adapted to the wedge ring (1203) is provided at an edge of the second mounting ring (1201) close to one side of the wedge ring (1203).

6. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 3 is characterized in that: The mixing mechanism (200) further comprises a mixing chamber (201) interconnected with the input end of the catalytic oxidation chamber (101); an air ring (204) is arranged inside the mixing chamber (201); nozzles (203) are evenly arranged on a side of the air ring (204) close to the driving impeller (104); the nozzles (203) are distributed obliquely, and their outlets are aligned with the blade positions of the driving impeller (104); the high-pressure ozone sprayed by the nozzles (203) drives the driving impeller (104) to rotate; and an air inlet pipe (202) interconnected with the air ring (204) is arranged on the outside of the mixing chamber (201).

7. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 6 is characterized in that: The filtering mechanism (300) further comprises a filtering chamber (301) interconnected with the mixing chamber (201); a filtering screen plate (302) is horizontally slidably arranged on the inner wall of the filtering chamber (301); second springs (309) are evenly arranged at the edge of one side of the filtering screen plate (302); the other end of the second spring (309) is tightly connected to the inner wall of the filtering chamber (301); a winding shaft (304) is arranged in the middle of the input end of the filtering chamber (301) and extends to the bottom of the filtering chamber (301); a plurality of first rope wheels (303) are arranged on the outer side of the winding shaft (304); and the outer side of the first rope wheels (303) is provided with a plurality of first rope wheels (303). A first traction rope (308) connected to the filter screen plate (302) is wound around the bottom end of the reel (304), a second rope wheel (306) is arranged on the bottom end of the reel (304), a second traction rope (310) is wound around the outside of the second rope wheel (306), a steering wheel (311) is arranged on the outside of the support bin (501), the other end of the second traction rope (310) passes around the steering wheel (311) and is connected to the bottom of the water collecting bin (502), a discharge bin (307) is arranged at the bottom of the filter bin (301), and a discharge port (305) is connected between the top of the discharge bin (307) and the inside of the filter bin (301).

8. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 1 is characterized in that: The water collection drive mechanism (500) further comprises a displacement slide groove (507) uniformly arranged at the inner wall position of the support sleeve (501); a displacement slider (504) is uniformly arranged on the outer side of the water collection bin (502) and is slidable up and down inside the displacement slide groove (507); a third spring (503) is arranged at the bottom of the displacement slider (504); the bottom of the third spring (503) is tightly connected to the bottom end of the displacement slide groove (507); a drainage pipe (505) is arranged at the bottom of the water collection bin (502); and a control component (506) which is interconnected with the drainage pipe (505) is arranged at the bottom of the water collection bin (502).

9. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 8, characterized in that: The control component (506) comprises a fourth spring (5061) which is fastened to the bottom of the catalytic oxidation bin (101); a blocking cover (5063) is arranged at the bottom of the fourth spring (5061); a drainage through hole (5064) which is interconnected with the drainage pipe (505) is arranged at the bottom of the water collecting bin (502); a limiting tube cover (5062) which is sleeved on the top of the drainage through hole (5064) is arranged at a position near the drainage through hole (5064) inside the water collecting bin (502); and through holes are evenly opened at the bottom of the limiting tube cover (5062); and the blocking cover (5063) is sleeved inside the limiting tube cover (5062).

10. The ozone catalytic oxidation equipment for oil field VOCs treatment according to claim 2, characterized in that: A water guide groove (119) is arranged at the bottom of the outer side of the first mounting ring (102), a drainage hole (115) interconnected with the water guide groove (119) is arranged at the bottom of the inner side of the first mounting ring (102), a water outlet port (107) interconnected with the water guide groove (119) is arranged at the bottom of the catalytic oxidation bin (101), a water collection component (508) corresponding to the water outlet port (107) is arranged at a position near the water outlet port (107) at the bottom of the catalytic oxidation bin (101), the water collection component (508) comprises a water collection bucket (5081) which is fastened to the bottom of the catalytic oxidation bin (101), upper baffles (5082) are arranged at both ends of the top of the inner wall of the water collection bucket (5081), a water outlet (5083) is arranged on one side of the water collection bucket (5081), and the position height of the water outlet (5083) is higher than the position height of the bottom of the upper baffle (5082).

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