An ozone catalytic oxidation device for gas field produced water

Abstract

The present invention relates to the technical field of wastewater treatment, in particular to an ozone catalytic oxidation device for produced water from a gas field, which comprises a shell component, including a tank body, a catalyst layer, an ozone generator and a water inlet pipe; a driving component, including an air outlet pipe, a mixing plate, a servo motor, an output shaft, a whisk plate and a motion ring; the present invention reduces the volume of ozone bubbles generated by splitting the mixing plate, thereby improving the reaction efficiency of ozone and pollutants; at the same time, the output shaft drives the whisk plate to move, driving part of the ozone bubbles to flow around, increasing the rising path of the ozone bubbles, expanding the contact area between the ozone bubbles and the catalyst in the catalyst layer, improving the use efficiency of the catalyst and facilitating the occurrence of the oxidation reaction; increasing the speed of the servo motor can also drive the motion ring to rotate together, and driving the ozone bubbles to further flow around through the outer rotating plate, thereby increasing the contact area between the ozone bubbles and the catalyst layer, improving the oxidation reaction, and increasing the treatment effect on the wastewater.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to an ozone catalytic oxidation device for gas field produced water. Background Art

[0002] With the continuous development of gas field exploitation, the treatment of gas field produced water has become an urgent problem to be solved. Gas field produced water usually contains high concentrations of organic matter, sulfides and other pollutants. Direct discharge will have a serious impact on the environment. Traditional gas field produced water treatment methods usually use ozone catalytic oxidation technology. This technology combines the strong oxidizing properties of ozone and the catalytic effect of catalysts. It can effectively oxidize difficult-to-degrade organic matter into harmless substances such as carbon dioxide and water at room temperature and pressure. For gas field produced water, which contains complex organic components and high salinity water bodies, ozone catalytic oxidation technology shows significant treatment advantages.

[0003] However, in traditional ozone catalytic oxidation devices, ozone is usually introduced into sewage in the form of bubbles. Ozone bubbles are usually of different sizes. Bubbles with larger diameters rise quickly and have a short residence time in the catalyst layer, which limits the contact time between ozone, the catalyst and pollutants and results in insufficient reaction. Although the bubbles generated by the aeration disk are smaller, they float straight upward and enter the catalyst layer from a fixed direction, resulting in uneven distribution of bubbles in the catalyst layer. Part of the catalyst surface may not be fully covered by bubbles, thereby reducing the utilization rate of the catalyst.

[0004] Patent publication number CN114314889A discloses an ozone catalytic oxidation device, which increases the gas-liquid convection efficiency through a fluidized bed, reduces the waste liquid in the reactor from flowing into the air inlet pipe through the air outlet, and then discharges the reactor, reducing the loss of waste liquid in the reactor. A forced circulation system is set outside the fluidized bed reactor to increase the residence time of sewage in the reactor. Through two layers of packing and high-speed sewage injection, a multi-layer dense water film is formed in the reactor, thereby improving the efficiency of ozone transfer to the liquid phase. Finally, ozone is introduced into the air inlet pipe. The air flow from the air inlet pipe drives the blade to rotate. The filter can further disperse the bubbles, cutting the ozone air flow into micron-sized bubbles, and the wastewater and ozone have a large contact range.

[0005] However, this technical solution still has the following defects: although the bubbles can be dispersed by the rotation of the blade, the volume of the bubbles is affected by the rotation speed of the blade, and the volume of the bubbles generated is different. In addition, the device enhances the contact between ozone and wastewater by improving the fluidized bed, but does not improve the contact reaction between ozone and the catalyst layer, and the problem of low catalyst layer utilization efficiency still exists. Summary of the Invention

[0006] In view of the above problems in the prior art, the present invention is proposed.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an ozone catalytic oxidation device for gas field produced water, comprising a shell assembly including a tank body, a catalyst layer, an ozone generator and a water inlet pipe;

[0008] The catalyst layer is fixed to the inner wall of the tank body and is used to catalyze the ozone gas generated by the ozone generator. The water inlet pipe is fixed to the end of the tank body and is used to inject wastewater into the tank body.

[0009] Propulsion assembly, including outlet duct, mixing plate, servo motor, output shaft, whisk plate and motion ring;

[0010] The mixing plate is fixed to the inner wall of the air outlet pipe and is used to split the ozone bubbles rising into the tank body. The end of the servo motor extends into the interior of the tank body and is used to drive the output shaft to rotate. The output shaft is used to drive the whisking plate and the motion ring to drive the rising ozone bubbles to flow around, thereby expanding the rising path of the ozone bubbles.

[0011] As a preferred embodiment of the ozone catalytic oxidation device for gas field produced water according to the present invention, a base is provided at the end of the tank body, the base is used to support the tank body, a gas pipe is provided on the outer wall of the ozone generator, one end of the gas pipe extends into the interior of the tank body and a horizontal pipe is provided at the end.

[0012] As a preferred solution of the ozone catalytic oxidation device for gas field produced water of the present invention, the end of the outlet pipe is connected to the horizontal pipe, the outer wall of the outlet pipe is provided with a support plate, and the end face array of the support plate is provided with limiting columns.

[0013] As a preferred embodiment of the ozone catalytic oxidation device for gas field produced water according to the present invention, a sleeve is fixed to the inner wall of the mixing plate, a fixing rod is provided at the end of the mixing plate and the fixing rod is fixed to the inner wall of the outlet pipe, a rotating shaft is provided at the axis of the servo motor, the end of the rotating shaft extends to the inner wall of the tank body and passes through the horizontal pipe, and a transmission bevel gear is provided on the outer wall of the rotating shaft.

[0014] As a preferred embodiment of the ozone catalytic oxidation device for gas field produced water according to the present invention, the output shaft is movably arranged inside the sleeve and its end extends to the inside of the cross pipe, an output bevel gear is provided at the end of the output shaft, the output bevel gear is meshed with the transmission bevel gear, a rotating shell is fixed to the end of the output shaft away from the output bevel gear, a sliding column is provided on the outer wall of the rotating shell, a special-shaped block is provided inside the rotating shell, a first elastic member is provided on the inner wall of the special-shaped block and the first elastic member is sleeved on the outer wall of the output shaft, and a second elastic member is also provided on the outer wall of the special-shaped block.

[0015] As a preferred solution of the ozone catalytic oxidation device for gas field produced water described in the present invention, the whisking plate is sleeved on the end of the rotating shell and a leakage hole is opened in an end face array, a limiting plate is provided on the outer wall of the whisking plate, and the end of the limiting column passes through the limiting plate and extends to the outer wall of the limiting plate.

[0016] As a preferred solution of the ozone catalytic oxidation device for gas field produced water described in the present invention, wherein: a limiting shell is provided on the end face of the whisk plate, a corrugated groove is provided on the inner wall of the limiting shell, the end of the rotating shell is located on the inner wall of the limiting shell and the end of the sliding column extends to the inner wall of the corrugated groove and slides with it, a limiting ring is provided on the inner wall of the limiting shell, and the limiting ring is sleeved on the outer wall of the second elastic member.

[0017] As a preferred solution of the ozone catalytic oxidation device for gas field produced water of the present invention, the end of the movement ring is provided with a cover, the outer wall of the movement ring is provided with an arc groove, and the end surface array of the movement ring is provided with a limiting groove.

[0018] As a preferred embodiment of the ozone catalytic oxidation device for gas field produced water according to the present invention, a swivel is provided at the axis of the moving ring, the swivel is fixed to the outer wall of the output shaft, a moving groove is provided on the end face of the swivel, a third elastic member is provided on the inner wall of the moving groove, a push rod is provided on the end face of the swivel, a push column is provided on the end face of the push rod, and the end of the push column extends to the inner wall of the moving groove and slides with it.

[0019] As a preferred solution of the ozone catalytic oxidation device for gas field produced water described in the present invention, the outer wall of the moving ring is provided with a rotating plate, the outer wall of the rotating plate is provided with a connecting column, and the end of the connecting column extends to the inner wall of the arc groove and slides with it.

[0020] The beneficial effects of the present invention are as follows: the volume of ozone bubbles generated by the splitting of the mixing plate is reduced, the reaction efficiency of ozone and pollutants is improved, and at the same time, the output shaft drives the whisk plate to move, causing the surrounding wastewater to fluctuate, driving part of the ozone bubbles to flow around, increasing the rising path of the ozone bubbles, expanding the contact area between the ozone bubbles and the catalyst in the catalyst layer, improving the utilization efficiency of the catalyst and facilitating the occurrence of the oxidation reaction, and by increasing the speed of the servo motor, the moving ring can also be driven to rotate together, and the ozone bubbles are further driven to flow around through the outer rotating plate, increasing the contact area between the ozone bubbles and the catalyst layer, improving the oxidation reaction, and increasing the treatment effect on the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of an ozone catalytic oxidation device for gas field produced water in the present invention;

[0023] Figure 2 It is a cross-sectional view of the internal structure of the tank body of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the pushing component in the present invention;

[0025] Figure 4 Schematic diagram of the connection between the air outlet pipe and the whisk plate in the present invention;

[0026] Figure 5 is a side sectional view of the gas outlet pipe in the present invention;

[0027] Figure 6 A schematic side cross-sectional view of the whisking plate of the present invention;

[0028] Figure 7 for Figure 6 A schematic diagram of the structure enlargement at point A;

[0029] Figure 8 Schematic diagram of the positional relationship between the mixing plate and the motion ring in the present invention;

[0030] Figure 9 Schematic diagram of the internal structure of the motion ring in the present invention.

[0031] Reference numerals: 100, housing assembly; 101, tank body; 1011, base; 102, catalyst layer; 103, ozone generator; 1031, gas pipe; 1032, horizontal pipe; 104, water inlet pipe;

[0032] 200, push assembly; 201, air outlet pipe; 2011, support plate; 2012, limit column; 202, mixing plate; 2021, sleeve; 2022, fixing rod; 203, servo motor; 2031, rotating shaft; 2032, transmission bevel gear; 204, output shaft; 2041, output bevel gear; 2042, rotating housing; 2043, sliding column; 2044, special-shaped block; 2045, first elastic member; 2046, second Elastic part; 205, flicking plate; 2051, leakage hole; 2052, limit plate; 2053, limit shell; 2054, corrugated groove; 2055, limit ring; 206, moving ring; 2061, sealing cover; 2062, arc groove; 2063, limit groove; 2064, rotating ring; 2065, moving groove; 2066, third elastic part; 2067, push rod; 2068, push column; 2069, rotating plate; 20610, connecting column. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0036] Example 1

[0037] Reference Figures 1 to 8 , which is the first embodiment of the present invention, provides an ozone catalytic oxidation device for gas field produced water.

[0038] Specifically, an ozone catalytic oxidation device for gas field produced water includes: a housing assembly 100 including a tank body 101, a catalyst layer 102 disposed inside the tank body 101, an ozone generator 103 disposed outside the tank body 101, and a water inlet pipe 104 disposed at the end of the tank body 101;

[0039] The pushing assembly 200 includes an air outlet pipe 201, a mixing plate 202 arranged on the inner wall of the air outlet pipe 201, a servo motor 203 arranged on the outer wall of the tank body 101, an output shaft 204 arranged inside the air outlet pipe 201, a flicking plate 205 arranged at the end of the output shaft 204 and a motion ring 206 sleeved on the outer wall of the output shaft 204.

[0040] Among them, the catalyst layer 102 is fixed inside the tank body 101, located above the water inlet pipe 104, and the water inlet pipe 104 is fixed at the bottom of the tank body 101. The wastewater inside the tank body 101 spreads upward from the bottom, and the ozone generated by the ozone generator 103 floats from the bottom to the top inside the tank body 101. The ozone passes through the catalyst layer 102 inside the tank body 101 and undergoes an oxidation reaction with the catalyst.

[0041] The ozone generated by the ozone generator 103 floats from the inside of the outlet pipe 201 to the top of the tank body 101 in the form of bubbles. The mixing plate 202 is fixed inside the outlet pipe 201. When the ozone bubbles pass through the mixing plate 202, the mixing plate 202 splits the ozone bubbles and reduces their volume. The ozone bubbles are reduced in volume and experience less buoyancy. Compared with larger bubbles, they stay in the wastewater longer and can stay in the catalyst layer 102 for a longer time, come into contact with the catalyst and pollutants, react, and improve reaction efficiency.

[0042] The servo motor 203 is fixed on the outside of the tank body 101, and its axis extends to the inside of the tank body 101, making contact with the output shaft 204. The output shaft 204 is fixed on the inside of the outlet pipe 201, passes through the middle of the mixing plate 202, and extends partly to the outside of the outlet pipe 201 and partly extends downward. Driven by the servo motor 203, it rotates inside the outlet pipe 201. The motion ring 206 is sleeved on the outside of the output shaft 204, a short distance above the outlet pipe 201, and the flick plate 205 is at the top of the output shaft 204, a long distance away from the outlet pipe 201. The rotation of the output shaft 204 drives the flick plate 205 to move and swing left and right above. The swing of the flick plate 205 drives the surrounding wastewater to be stirred, generating fluctuations. At the same time, the fluctuations of the wastewater drive some of the rising ozone bubbles to move around, thereby expanding the rising path of the ozone bubbles.

[0043] Preferably, a base 1011 is provided at the end of the tank body 101, and the base 1011 is used to support the tank body 101. A gas pipe 1031 is provided on the outer wall of the ozone generator 103, and one end of the gas pipe 1031 extends into the interior of the tank body 101 and a horizontal pipe 1032 is provided at the end.

[0044] Among them, the base 1011 is fixed to the bottom of the tank body 101 for supporting the tank body 101. The ozone generator 103 is outside the tank body 101 for generating ozone gas. The ozone gas enters the interior of the tank body 101 through the gas pipe 1031. The gas pipe 1031 is fixed with a horizontal pipe 1032 at the top position inside the tank body 101. The ozone gas enters the tank body 101 through the gas pipe 1031 and then enters the horizontal pipe 1032 at the top, and is finally output from the horizontal pipe 1032. The gas pipe 1031 is located above the water inlet pipe 104. The internal wastewater gradually spreads upward from the bottom of the tank body 101. After the ozone gas enters the horizontal pipe 1032 from the gas pipe 1031, it finally floats upward in the form of bubbles.

[0045] In summary, when in use, the water inlet pipe 104 is at the bottom of the tank body 101, and wastewater is pumped into the interior. The wastewater spreads from the bottom to the top inside the tank body 101, submerging the horizontal pipe 1032 at the top of the gas pipe 1031 and the catalyst layer 102 above. The gas generated by the ozone generator 103 enters the top horizontal pipe 1032 through the gas pipe 1031, and the gas outlet pipe 201 is fixed at the top of the horizontal pipe 1032 and is connected to the horizontal pipe 1032. Then, the ozone gas floats upward through the gas outlet pipe 201 in the form of bubbles and enters the catalyst layer 102, reacting with the catalyst. A mixing plate 202 is fixed inside the gas outlet pipe 201. The ozone bubbles are initially larger in volume inside the gas outlet pipe 201. After passing through the mixing plate 202, the volume of the ozone bubbles becomes smaller, and then floats upward from the gas outlet pipe 201.

[0046] The servo motor 203 is fixed to the outside of the tank body 101, and the parts at the axis extend to the inside of the cross tube 1032, contacting the parts of the output shaft 204 in the cross tube 1032, driving the output shaft 204 to operate, and the flicking plate 205 and the moving ring 206 at the top of the output shaft 204 move together with the output shaft 204. The flicking plate 205 is at the top of the output shaft 204, and repeatedly shakes with the movement of the output shaft 204. The flicking plate 205 stirs the surrounding wastewater to generate fluctuations, and the fluctuations of the wastewater drive the ozone bubbles to the surroundings, thereby expanding the rising path of the ozone bubbles and generating more contact area with the catalyst layer 102.

[0047] Example 2

[0048] Reference Figures 1 to 7 , which is the second embodiment of the present invention, and is based on the previous embodiment.

[0049] Specifically, the end of the air outlet pipe 201 is connected to the cross pipe 1032, the outer wall of the air outlet pipe 201 is sleeved with a support plate 2011, and the end face array of the support plate 2011 is provided with a limiting column 2012. The inner wall of the mixing plate 202 is fixed with a sleeve 2021, and the end of the mixing plate 202 is provided with a fixing rod 2022, and the fixing rod 2022 is fixed to the inner wall of the air outlet pipe 201. A rotating shaft 2031 is provided at the axis center of the servo motor 203, and the end of the rotating shaft 2031 extends to the inner wall of the tank body 101 and passes through the cross pipe 1032. The outer wall of the rotating shaft 2031 is sleeved with a transmission bevel gear 2032.

[0050] Among them, the bottom position of the outlet pipe 201 is connected to the upper surface of the horizontal pipe 1032, and the gas generated by the ozone generator 103 moves upward from the horizontal pipe 1032 and enters the outlet pipe 201. Since the interior of the tank body 101 is filled with wastewater, the gas floats upward from the outlet pipe 201 in the form of bubbles.

[0051] The support plate 2011 is fixed to the outside of the air outlet pipe 201, and a plurality of limiting columns 2012 are arranged in an array on the upper surface of the support plate 2011. The limiting columns 2012 are relatively high and pass through the flick plate 205 at the top of the output shaft 204 to limit the flick plate 205 and prevent the flick plate 205 from rotating with the rotation of the output shaft 204.

[0052] The mixing plate 202 is fixed together by multiple layers of inclined plates in staggered layers. A sleeve 2021 is fixed in the middle position of the mixing plate 202. The output shaft 204 passes through the sleeve 2021 and extends to the outside of the air outlet pipe 201. The output shaft 204 will not affect the sleeve 2021 when it rotates. Two fixing rods 2022 are symmetrically arranged on the upper and lower sides of the mixing plate 202, which are fixed to the inside of the air outlet pipe 201 by screwing, thereby fixing the mixing plate 202 at the upper end of the air outlet pipe 201.

[0053] Preferably, the output shaft 204 is movably arranged inside the sleeve 2021 and its end extends to the inside of the cross tube 1032. An output bevel gear 2041 is provided at the end of the output shaft 204, and the output bevel gear 2041 is meshed with the transmission bevel gear 2032. A rotating shell 2042 is fixed to the end of the output shaft 204 facing away from the output bevel gear 2041. A sliding column 2043 is provided on the outer wall of the rotating shell 2042, and a special-shaped block 2044 is provided inside the rotating shell 2042. A first elastic member 2045 is provided on the inner wall of the special-shaped block 2044 and the first elastic member 2045 is sleeved on the outer wall of the output shaft 204. A second elastic member 2046 is also provided on the outer wall of the special-shaped block 2044.

[0054] Among them, the output shaft 204 passes through the sleeve 2021, and the output bevel gear 2041 at the bottom of the output shaft 204 is engaged with the transmission bevel gear 2032 on the outside of the rotating shaft 2031 driven by the servo motor 203, and is driven by the servo motor 203 to rotate. The other end of the output shaft 204 is fixed with a rotating shell 2042, and the rotating shell 2042 rotates together with the output shaft 204. A special-shaped block 2044 is placed inside the rotating shell 2042. The special-shaped block 2044 does not contact the rotating shell 2042. The interior of the special-shaped block 2044 is hollow and is supported inside the rotating shell 2042 by the first elastic member 2045 inside the special-shaped block 2044.

[0055] Preferably, the flicking plate 205 is sleeved on the end of the rotating shell 2042 and a leakage hole 2051 is opened in the end face array, a limiting plate 2052 is set on the outer wall of the flicking plate 205, the end of the limiting column 2012 passes through the limiting plate 2052 and extends to the outer wall of the limiting plate 2052, a limiting shell 2053 is set on the end face of the flicking plate 205, a corrugated groove 2054 is opened on the inner wall of the limiting shell 2053, the end of the rotating shell 2042 is located on the inner wall of the limiting shell 2053 and the end of the sliding column 2043 extends to the inner wall of the corrugated groove 2054 and slides with it, a limiting ring 2055 is set on the inner wall of the limiting shell 2053, and the limiting ring 2055 is sleeved on the outer wall of the second elastic member 2046.

[0056] Among them, the flapping plate 205 is sleeved on the outside of the rotating shell 2042, and a plurality of leakage holes 2051 are opened in the surface array. The ozone bubbles floating upward inside the lower air outlet pipe 201 continue to float upward through the leakage holes 2051. At the same time, there are a plurality of limit plates 2052 in the outer wall array of the flapping plate 205, corresponding to the limit columns 2012 on the upper surface of the support plate 2011. The limit columns 2012 pass through the limit plates 2052 to limit the flapping plate 205 to prevent the flapping plate 205 from rotating with the rotation of the output shaft 204.

[0057] The lower surface of the flick plate 205 is fixed with a limit shell 2053, which is sleeved on the outside of the rotating shell 2042. The sliding column 2043 on the outer wall of the rotating shell 2042 slides inside the corrugated groove 2054 opened on the inner surface of the limit shell 2053. The number of the corrugated grooves 2054 is an odd number. When the sliding column 2043 on one side of the outer wall of the rotating shell 2042 is inside the rising groove of the corrugated groove 2054 on one side, the sliding column 2043 on the other side is inside the corrugated groove 2054 on the other side. 4, so that the whisk plate 205 is inclined, and the sliding column 2043 on the outer wall of the rotating shell 2042 slides inside the corrugated groove 2054 on the inner wall of the limiting shell 2053, so that the whisk plate 205 swings back and forth on the top of the rotating shell 2042. When the whisk plate 205 tilts and swings left and right, the inclined whisk plate 205 will impact the special-shaped block 2044 inside the rotating shell 2042 and the first surface of the special-shaped block 2044. When the rotating shell 2042 rotates, the side sliding post 2043 slides out of the corrugated groove 2054 and squeezes to another angle, the first elastic member 2045 that was originally squeezed and deformed to one side recovers its deformation, pushing the original tilted angle of the special-shaped block 2044 upward to restore it. At the same time, the second elastic member 2046 on the surface of the special-shaped block 2044 recovers its deformation together, and the originally tilted whisk plate 205 is restored to a horizontal state, and this reciprocating motion continues.

[0058] In summary, when in use, wastewater is injected into the interior of the tank body 101 through the water inlet pipe 104, and the wastewater spreads upward from the bottom of the tank body 101, gradually covering the cross pipe 1032 and the catalyst layer 102 above. At this time, the ozone generator 103 begins to transport ozone to the interior of the tank body 101 through the gas pipe 1031. The ozone enters the cross pipe 1032 and then enters the outlet pipe 201. The ozone gas floats upward in the form of bubbles in the cross pipe 1032. When passing through the outlet pipe 201, the ozone bubbles continue to move upward through the mixing plate 202. The mixing plate 202 is installed in staggered layers with multiple layers of folded plates. After passing through the mixing plate 202, the volume of the ozone bubbles becomes smaller, which can reduce the buoyancy, increase the residence time in the wastewater and the catalyst layer 102, and improve the reaction efficiency.

[0059] At the same time, the rotating shaft 2031 at the axis of the servo motor 203 rotates, and the output shaft 204 is driven to rotate through the transmission bevel gear 2032. When the output shaft 204 rotates, the rotating shell 2042 fixed on the top of the output shaft 204 rotates in the limiting shell 2053 on the lower surface of the whisk plate 205. The corrugated groove 2054 opened inside the limiting shell 2053 contacts the sliding column 2043 on the surface of the rotating shell 2042. When the rotating shell 2042 rotates, the sliding column 2043 on the surface slides in the corrugated groove 2054. The rotation of the rotating shell 2042 drives the upper whisk plate 205 to move. When the rotating shell 2042 rotates, the sliding column 2043 slides in the corrugated groove 205 4 slides internally, driving the whisk plate 205 to swing back and forth, stirring the wastewater around the whisk plate 205. The movement of the wastewater will generate fluctuations, which will drive a portion of the ozone bubbles floating upward below the whisk plate 205 to move around, changing the rising path of these ozone bubbles. At this time, most of the ozone bubbles will continue to float upward through the leak holes 2051 on the surface of the whisk plate 205, and some bubbles will flow around with the water flow and then continue to rise, expanding the upward floating path of the ozone bubbles and increasing the contact area between the ozone bubbles and the catalyst layer 102, which is beneficial to the utilization efficiency of the catalyst and improves the reaction efficiency of the catalyst layer 102 and ozone.

[0060] Example 3

[0061] Reference Figures 6 to 9 , which is the third embodiment of the present invention, and is based on the previous embodiment.

[0062] Specifically, a cover 2061 is provided at the end of the movement ring 206 , an arc groove 2062 is provided on the outer wall of the movement ring 206 , and a limiting groove 2063 is provided in an array on the end surface of the movement ring 206 .

[0063] Among them, the moving ring 206 is sleeved on the outside of the output shaft 204, the lower surface of the moving ring 206 contacts the top of the middle sleeve 2021 of the mixing plate 202, and a cover 2061 is provided on the upper surface of the moving ring 206. The arc grooves 2062 are symmetrically opened on the outside of the moving ring 206, and a plurality of limiting grooves 2063 are opened on the upper surface. The end to end of the limiting grooves 2063 are connected, and the plurality of limiting grooves 2063 are connected into a whole and opened on the upper surface of the moving ring 206.

[0064] Preferably, a rotating ring 2064 is provided at the axis center of the moving ring 206, and the rotating ring 2064 is fixed to the outer wall of the output shaft 204. A moving groove 2065 is provided on the end face of the rotating ring 2064, and a third elastic member 2066 is provided on the inner wall of the moving groove 2065. A push rod 2067 is provided on the end face of the rotating ring 2064, and a push column 2068 is provided on the end face of the push rod 2067, and the end of the push column 2068 extends to the inner wall of the moving groove 2065 and slides with it.

[0065] Among them, the swivel 2064 is located at the axis of the moving ring 206 and is fixed on the outer surface of the output shaft 204. The swivel 2064 rotates together with the output shaft 204. At the same time, the rotation of the swivel 2064 will not affect the moving ring 206. A plurality of moving grooves 2065 are provided on the surface of the swivel 2064. A third elastic member 2066 is placed inside each moving groove 2065. A plurality of push rods 2067 are provided on the upper surface of the swivel 2064. The bottom position of the push rod 2067 is hinged to the upper surface of the swivel 2064. At the same time, the push column 2068 at the front end position of the push rod 2067 extends into the moving groove 2065 and is pushed by the third elastic member 2066 toward the direction close to the output shaft 204.

[0066] When the speed of the output shaft 204 increases, the rotating ring 2064 increases along with the output shaft 204. Under the action of centrifugal force, the top end of the push rod 2067 on the surface of the rotating ring 2064 is offset and moves toward the outside of the rotating ring 2064. The push column 2068 on the lower surface slides inside the motion groove 2065, squeezing the third elastic member 2066. At this time, the front end position of the push rod 2067 is engaged in the limiting groove 2063 on the surface of the motion ring 206, thereby driving the motion ring 206 outside the rotating ring 2064 to rotate.

[0067] Preferably, a rotating plate 2069 is provided on the outer wall of the movement ring 206 , and a connecting column 20610 is provided on the outer wall of the rotating plate 2069 . The end of the connecting column 20610 extends to the inner wall of the arc groove 2062 and slides therewith.

[0068] Among them, the rotating plate 2069 is rotatably arranged on the outside of the movement ring 206, and the connecting column 20610 on the outer wall of the rotating plate 2069 extends into the arc groove 2062 outside the movement ring 206. The rotating plate 2069 is connected to the outer sleeve of the connecting shaft inside the movement ring 206 and is provided with a torsion spring. When the movement ring 206 does not move, the rotating plate 2069 is vertically outside the movement ring 206 to reduce the contact between the rotating plate 2069 and the ozone bubbles rising below. When the movement ring 206 rotates, the rotating plate 2069 rotates outside the movement ring 206, is blocked by the wastewater inside the tank body 101, and is deflected. The connecting column 20610 is in the arc groove 20 The inside of 62 slides upward from the bottom to the top of the arc groove 2062. At this time, the rotating plate 2069 is obliquely on the outside of the moving ring 206 and rotates with the moving ring 206 above the air outlet pipe 201. The rotation of the rotating plate 2069 moves the floating ozone bubbles. When the ozone bubbles rise, they touch the inclined rotating plate 2069 and are driven by the rotating plate 2069 to move around and then float up, further expanding the rising path of the ozone bubbles. They can float upward over a larger area, pass through the catalyst layer 102 above, come into contact with more catalysts, react, and further improve the utilization efficiency of the catalyst.

[0069] In summary, when in use, the ozone bubbles float upward in the outlet pipe 201, and when passing through the mixing plate 202, they are split by the mixing plate 202, making the originally larger ozone bubbles smaller in volume, and then continue to float upward from the outlet pipe 201, and after passing through the leakage hole 2051 on the surface of the whisking plate 205, continue to float upward and enter the catalyst layer 102 above.

[0070] When the content of pollutants in the wastewater entering the tank body 101 is low and too much ozone is not needed for catalytic oxidation reaction, the ozone generator 103 generates less ozone at this time, and the number of ozone bubbles passing through the outlet pipe 201 is small. At this time, the rotation speed of the servo motor 203 is slow, driving the flapping plate 205 to swing back and forth slowly at the top of the output shaft 204. The fluctuations generated by the wastewater around the flapping plate 205 can sufficiently drive the smaller number of ozone bubbles, so that these ozone bubbles can reasonably expand the rising path and enter the catalyst layer 102 above.

[0071] When the pollutant content in the wastewater is high, the ozone generator 103 produces more ozone. At this time, the number of ozone bubbles floating upward through the outlet pipe 201 is large. When the servo motor 203 drives the whisk plate 205 at the top of the output shaft 204 to swing in a cycle, due to the slow reciprocating swing speed of the whisk plate 205, most of the ozone bubbles directly pass through the leak holes 2051 on the surface of the whisk plate 205 upward, and a small part of the ozone bubbles are affected by the movement of the whisk plate 205, and flow around with the water flow and then float upward. At this time, most of the ozone bubbles go straight upward through the catalyst layer 102, and few ozone bubbles enter the catalyst in other parts of the catalyst layer 102. The efficiency of the catalyst in this part is low. Therefore, when the pollutants in the wastewater are high, as the ozone generated by the ozone generator 103 increases, it is necessary to increase the speed of the servo motor 203 to drive the whisk plate 205 at the top of the output shaft 204 to swing faster above the outlet pipe 201. Although the whisk plate 205 swings The amplitude remains unchanged, but the frequency of the swing becomes higher, the frequency of the surrounding water flow becomes larger, and the frequency of the fluctuation generated by the wastewater becomes faster, which can drive more rising ozone bubbles to flow around first, and then continue to float up. At the same time, as the speed of the output shaft 204 increases, the push rod 2067 on the surface of the rotating ring 2064 moves outward under the centrifugal force, and the push rod 2067 is engaged in the limit groove 2063 on the surface of the moving ring 206, thereby driving the moving ring 206 to rotate. When the moving ring 206 rotates, the moving ring 206 The external rotating plate 2069 rotates together on the outside of the exhaust pipe 201, and the rotating plate 2069 will flip over. At this time, when the ozone bubbles below rise, a part of them will be driven by the inclined rotating plate 2069 to move around, and then float upward. Through the rotation of the rotating plate 2069 and the high-frequency shaking of the flicking plate 205, a part of the ozone bubbles will move around, expanding the overall upward floating path, so that the ozone bubbles can contact more catalysts inside the catalyst layer 102, and a catalytic reaction will occur.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An ozone catalytic oxidation device for gas field produced water, characterized in that: include: A housing assembly (100) includes a tank body (101), a catalyst layer (102), an ozone generator (103), and a water inlet pipe (104); The catalyst layer (102) is fixed to the inner wall of the tank body (101) and is used to catalyze the ozone gas generated by the ozone generator (103); the water inlet pipe (104) is fixed to the end of the tank body (101) and is used to inject wastewater into the tank body (101); A pushing assembly (200) comprising an air outlet pipe (201), a mixing plate (202), a servo motor (203), an output shaft (204), a whisking plate (205) and a motion ring (206); The mixing plate (202) is fixed to the inner wall of the air outlet pipe (201) and is used to split the ozone bubbles rising into the tank body (101). The end of the servo motor (203) extends into the interior of the tank body (101) and is used to drive the output shaft (204) to rotate. The output shaft (204) is used to drive the whisking plate (205) and the motion ring (206) to drive the rising ozone bubbles to flow in all directions, thereby expanding the path for the ozone bubbles to rise. The whisking plate (205) is sleeved on the end of the rotating shell (2042) and an array of leakage holes (2051) are provided on the end surface. A limiting plate (2052) is provided on the outer wall of the whisking plate (205), and the end of the limiting column (212) passes through the limiting plate (2052) and extends to the outer wall of the limiting plate (2052). The end surface of the flicking plate (205) is provided with a limit shell (2053), the inner wall of the limit shell (2053) is provided with a corrugated groove (2054), the end of the rotating shell (2042) is located on the inner wall of the limit shell (2053), and the end of the sliding column (2043) extends to the inner wall of the corrugated groove (2054) and slidably cooperates with it, and the inner wall of the limit shell (2053) is provided with a limit ring (2055), and the limit ring (2055) is sleeved on the outer wall of the second elastic member (2046); The end of the motion ring (206) is provided with a cover (2061), the outer wall of the motion ring (206) is provided with an arc groove (2062), and the end surface array of the motion ring (206) is provided with a limiting groove (2063); A rotating ring (2064) is provided at the axis of the motion ring (206), the rotating ring (2064) is fixed to the outer wall of the output shaft (204), a motion groove (2065) is provided on the end face of the rotating ring (2064), a third elastic member (2066) is provided on the inner wall of the motion groove (2065), a push rod (2067) is provided on the end face of the rotating ring (2064), a push column (2068) is provided on the end face of the push rod (2067), and the end of the push column (2068) extends to the inner wall of the motion groove (2065) and is slidably engaged therewith; The outer wall of the motion ring (206) is provided with a rotating plate (2069), the outer wall of the rotating plate (2069) is provided with a connecting column (20610), and the end of the connecting column (20610) extends to the inner wall of the arc groove (2062) and is slidably engaged therewith; A rotating shell (2042) is fixed on the top of the output shaft (204); The outer wall of the rotating shell (2042) is provided with a sliding column (2043); A special-shaped block (2044) is provided inside the rotating shell (2042), and a second elastic member (2046) is further provided on the outer wall of the special-shaped block (2044).

2. The ozone catalytic oxidation device for gas field produced water according to claim 1, characterized in that: A base (1011) is provided at the end of the tank body (101), and the base (1011) is used to support the tank body (101). A gas pipe (1031) is provided on the outer wall of the ozone generator (103). One end of the gas pipe (1031) extends into the interior of the tank body (101) and a transverse pipe (1032) is provided at the end.

3. The ozone catalytic oxidation device for gas field produced water according to claim 2, characterized in that: The end of the air outlet pipe (201) is connected to the transverse pipe (1032), the outer wall of the air outlet pipe (201) is provided with a support plate (2011), and the end surface of the support plate (2011) is provided with a limiting column (212) in an array.

4. The ozone catalytic oxidation device for gas field produced water according to claim 3, characterized in that: A sleeve (2021) is fixed to the inner wall of the mixing plate (202), a fixing rod (2022) is provided at the end of the mixing plate (202), and the fixing rod (2022) is fixed to the inner wall of the air outlet pipe (201), a rotating shaft (2031) is provided at the axis of the servo motor (203), the end of the rotating shaft (2031) extends to the inner wall of the tank body (101) and passes through the transverse pipe (1032), and a transmission bevel gear (2032) is sleeved on the outer wall of the rotating shaft (2031).

5. The ozone catalytic oxidation device for gas field produced water according to claim 4, characterized in that: The output shaft (204) is movably arranged inside the sleeve (2021) and its end extends into the interior of the transverse tube (1032). An output bevel gear (2041) is provided at the end of the output shaft (204), and the output bevel gear (2041) is meshed with the transmission bevel gear (2032). A rotating housing (2042) is fixed to one end of the output shaft (204) facing away from the output bevel gear (2041). A first elastic member (2045) is provided on the inner wall of the special-shaped block (2044), and the first elastic member (2045) is sleeved on the outer wall of the output shaft (204).

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