Disinfection device and method for petroleum sewage treatment

Abstract

The invention relates to the technical field of petroleum sewage treatment, and discloses a disinfection device and method for petroleum sewage treatment.The disinfection device comprises a supporting base, a sewage treatment bin is arranged at the top of the supporting base, the top of the sewage treatment bin communicates with a water inlet pipe end, and the bottom of the sewage treatment bin communicates with a water drainage pipe end; a foam liquid guide ring is arranged on the outer side of the sewage treatment bin; a sterilization and disinfection mechanism for performing ultraviolet sterilization and disinfection on the petroleum sewage is arranged at the top in the sewage treatment bin; according to the disinfection device for petroleum sewage treatment, by arranging a reflecting prism and an ultraviolet sterilization array on the inner wall of the spiral sterilization and disinfection bin, the effective optical path of ultraviolet light is prolonged to 3 m after multiple times of reflection, the penetration depth is increased to 6 times of that of a traditional design, and the ultraviolet radiation uniformity is improved by 80% through reverse rotation of the sterilization and disinfection mechanism and sewage and enhanced turbulent mixing; and the energy consumption is reduced by 35%.

Description

Technical Field

[0001] The present invention relates to the technical field of petroleum wastewater treatment, and more particularly to a disinfection device and method for petroleum wastewater treatment. Background Art

[0002] Petroleum wastewater treatment is an important part of the oil and gas extraction and refining industry. Its core goal is to remove oil, suspended matter, pathogenic microorganisms and toxic chemicals (such as 6PPD-quinone) from wastewater.

[0003] Current mainstream technologies include ultraviolet disinfection, chemical oxidation, and flotation separation. Among them, ultraviolet disinfection is widely used because it does not pose a risk of secondary pollution. However, the high turbidity (NTU>50), low transmittance (UVT<30%) and complex components (such as emulsified oil and colloids) of petroleum wastewater result in low sterilization efficiency of traditional ultraviolet systems (pathogen inactivation rate <2-log), and it is difficult to simultaneously treat disinfection by-products and flocculated scum. In addition, existing equipment mostly relies on external power to drive mechanical cleaning components, which has high energy consumption and complex maintenance, making it difficult to adapt to the needs of continuous operations.

[0004] In response to the above problems, there is an urgent need for an oil wastewater treatment device that integrates high-efficiency UV disinfection, automatic scum removal and low-energy self-cleaning functions. Through structural innovation, it breaks through the bottleneck of traditional technology, achieves improved sterilization rate, reduced operation and maintenance costs, and long-term stable operation of the equipment. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a disinfection device and method for treating petroleum wastewater.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A disinfection device for treating petroleum wastewater, comprising a support base, a sewage treatment chamber disposed on the top of the support base, a water inlet pipe connected to the top of the sewage treatment chamber, a drain pipe connected to the bottom of the sewage treatment chamber, and a foam guide ring disposed on the outside of the sewage treatment chamber;

[0008] A sterilization and disinfection mechanism for performing ultraviolet sterilization on petroleum wastewater is provided on the top of the sewage treatment tank;

[0009] A support and diversion mechanism for discharging the treated and disinfected sewage is provided in the middle of the bottom of the sterilization and disinfection mechanism;

[0010] The top of the outer side of the support and guide mechanism is provided with a foam discharge mechanism that is extrusion-linked with the bottom of the sterilization and disinfection mechanism. The foam discharge mechanism is used to guide and discharge foam and impurities generated during the treatment of petroleum wastewater inside the sewage treatment tank;

[0011] The bottom of the outer side of the supporting guide mechanism is provided with a cleaning flow-disturbing mechanism linked with the foam liquid discharge mechanism. The cleaning flow-disturbing mechanism is used to clean the inner wall of the sewage treatment bin and to directional guide the sewage inside the sewage treatment bin.

[0012] As a further optimization scheme of the present invention, the sterilization and disinfection mechanism includes two groups of support ring grooves arranged on the top of the inner wall of the sewage treatment tank, and the inner wall of the sewage treatment tank is provided with a first sealing plate and a second sealing plate adapted to the two groups of support ring grooves. A sterilization and disinfection component is sealed and fastened between the first sealing plate and the second sealing plate. The first sealing plate and the second sealing plate are rotated and displaced relative to the inner wall of the sewage treatment tank. A top cover is provided on the top of the sewage treatment tank, and a rotating support seat is provided on the top of the first sealing plate. A water inlet pipe end extending to the inside of the rotating support seat is provided in the middle of the top of the top cover. The water inlet pipe end is fastened to the top cover, and the rotating support seat follows the rotation displacement of the first sealing plate. A guide ring group is provided in the middle of the bottom of the second sealing plate.

[0013] As a further optimization scheme of the present invention, the sterilization and disinfection component includes a spiral sterilization and disinfection chamber, a partition, a reflective prism and an ultraviolet sterilization array unit. The spiral sterilization and disinfection chamber is clamped and sealed between the first sealing plate and the second sealing plate. The output end of the water inlet pipe passes through the first sealing plate and extends to the middle of the spiral sterilization and disinfection chamber. Several groups of reflective prisms are evenly distributed on both sides of the inner wall of the spiral sterilization and disinfection chamber. Starting from the central inner wall of the spiral sterilization and disinfection chamber, several groups of ultraviolet sterilization array units are also evenly distributed on both sides of the inner wall of the spiral sterilization and disinfection chamber. The light source emitting end of the ultraviolet sterilization array unit corresponds to the reflective prism, and the number of reflective prisms is 4 times or more than that of the ultraviolet sterilization array unit. A partition is provided between the first sealing plate and the second sealing plate at the output end of the spiral sterilization and disinfection chamber. The second sealing plate is provided with a diversion and discharge port connected to the interior of the sewage treatment chamber at the output end of the spiral sterilization and disinfection chamber.

[0014] As a further optimization scheme of the present invention, the foam discharge mechanism includes a second support truss fastened to the inside of the sewage treatment tank, the second support truss includes an inner support frame, an outer support frame and a guide groove group, the inner support frame is a polygonal closed ring structure, wherein the number of sides of the inner support frame is greater than or equal to 4, the outer support frame extends from the top corner of the inner support frame to the inner wall of the sewage treatment tank and is fastened to the inner wall of the sewage treatment tank, the two groups of outer support frames on the same side are both provided with a guide groove group on the side close to each other, and the inner sides of the two groups of guide groove groups jointly guide and support the foam conveying plate.

[0015] As a further optimization scheme of the present invention, the guide groove group is composed of two groups of inner grooves distributed upper and lower and connected to each other end to end, wherein the groove depth of the starting end of the group of inner grooves located at the bottom is D1, and the groove depth of the end is D2, and the groove depth of the starting end of the other group of inner grooves close to the top is G2, and the groove depth of the end is G1, wherein D1=G2>D2=G1, wherein the ends of D1 and G1 are close to the position of the inner support frame, and the ends of D2 and G2 are close to the position of the inner wall of the sewage treatment tank.

[0016] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure.

[0017] As a further optimization scheme of the present invention, the cleaning spoiler mechanism includes several groups of first displacement grooves evenly arranged at the bottom of the inner wall of the sewage treatment tank, several inner wall scrapers are provided at the position that fits the inner wall of the sewage treatment tank, and one side of the inner wall scraper that fits the first displacement groove is provided with a first slider adapted for the first displacement groove, and both ends of the first slider are provided with a return spring fastened to the two ends of the first displacement groove. Several groups of spoilers are evenly provided on the inner side of the inner wall scraper, and the other end of the spoiler is jointly provided with an inner limit block, and the inner limit block and the inner wall scraper are both provided with a mounting seat adapted for mutual adaptation to the spoiler, one side of the mounting seat is provided with a limit baffle adapted for mutual adaptation to the spoiler, the top of the inner wall scraper is provided with a traction rope connected to the bottom of the limit slider, and the traction rope is turned through a guide ring provided at the bottom of the first support truss, and a second slider is provided in the middle of the side of the inner limit block originally away from the spoiler

[0018] As a further optimization scheme of the present invention, the supporting and guiding mechanism includes a second guide barrel arranged in the middle of the interior of the sewage treatment tank, a drainage pipe end is arranged in the middle of the bottom of the supporting base, the input end of the drainage pipe end is connected to the bottom of the second guide barrel, a first guide barrel is arranged on the top of the second guide barrel, a plurality of drainage holes are arranged at the bottom of the outer side of the first guide barrel, a plurality of second displacement grooves are evenly arranged on the outer side of the second guide barrel, the second displacement grooves and the second slider are adapted to each other, and a plurality of spiral guide plates are arranged on the outer side of the second guide barrel near the bottom of the sewage treatment tank.

[0019] As a further optimization scheme of the present invention, several groups of foam drainage holes extending into the interior of the sewage treatment tank are evenly arranged on the outside of the sewage treatment tank, and a foam guide ring is arranged on the outside of the sewage treatment tank at the bottom of the foam drainage hole. The vertical position height of the foam drainage hole is higher than the position height of the drainage hole. The inner support frame and the support ring are respectively mounted on the outside of the first guide barrel and the second guide barrel. The overall rotation direction of the sterilization and disinfection mechanism is opposite to the rotation direction of the sewage inside the sewage treatment tank. When the spoiler moves upward, it pushes the water flow inside the sewage treatment tank to rotate, and the top surface of the spiral guide plate faces the flow direction of the water flow inside the sewage treatment tank.

[0020] A disinfection method for treating petroleum wastewater, the specific steps of the method are as follows:

[0021] Step 1: First, the petroleum wastewater to be treated is injected into the sewage treatment tank through the water inlet pipe end and transported to the interior of the sterilization and disinfection mechanism. The sterilization and disinfection mechanism sterilizes the petroleum wastewater with ultraviolet light. The spiral structure design inside the sterilization and disinfection mechanism causes the petroleum wastewater to flow and be transported to the interior of the sewage treatment tank.

[0022] Step 2: The sewage entering the sewage treatment tank has an initial speed and direction, which generates tangential power and rotates inside the sewage treatment tank. The rotation direction is exactly opposite to the rotation direction of the sterilization and disinfection mechanism as a whole, and the speed difference is 10 to 20 rpm.

[0023] Step 3: Further, the rotation of the sterilization and disinfection mechanism drives the foam liquid discharge mechanism to move, and at the same time, the displacement of the foam liquid discharge mechanism cleans flocculants, floating foam, impurities, etc. in the petroleum wastewater and discharges them from the position of the foam liquid guide ring;

[0024] Step 4: At the same time, the position of the foam discharge mechanism drives the cleaning flow disturbance mechanism to move up and down, thereby cleaning the inner wall of the sewage treatment tank, preventing flocculants, floating foam, impurities, etc. in the petroleum sewage from adhering to its surface, and promoting the further flow of sewage;

[0025] Step 5: Finally, the sewage after sterilization and disinfection is discharged from the position of the supporting diversion mechanism and led out through the end of the drain pipe, thereby completing the sterilization and disinfection process of the petroleum sewage.

[0026] The beneficial effects of the present invention are:

[0027] 1. The present invention sets a reflective prism and a UV sterilization array on the inner wall of the spiral sterilization and disinfection chamber. After multiple reflections, the effective optical path of the UV light is extended to 3m, and the penetration depth is increased to 6 times that of the traditional design (the sterilization rate is greater than 5-log when UVT=30%). The sterilization and disinfection mechanism and the sewage rotate in the opposite direction (the speed difference is 10-20rpm), which enhances turbulent mixing, improves the uniformity of UV radiation by 80%, and reduces energy consumption by 35%.

[0028] 2. The present invention uses the foam liquid conveying plate to periodically immerse and remove scum under the action of the guide groove group and the limit pin. The single-cycle removal efficiency is greater than 95%, and there is no need to stop the machine for manual intervention. The collected flocculent is directionally discharged to the foam liquid guide ring through the foam discharge hole to avoid secondary pollution. The scum has a moisture content of less than 60% and can be directly compressed for treatment.

[0029] 3. The present invention uses an inner wall scraper linked to a limit slider through a traction rope to automatically scrape off inner wall attachments under sewage flow resistance. The cleaning coverage rate is greater than 98%, and the maintenance cycle is extended to 6 months. The tangential water spray at the diversion and discharge port drives the sterilization and disinfection mechanism to rotate, without the need for an external motor, and the overall energy consumption is reduced by 50%. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0031] Figure 2 It is a three-dimensional structural cross-sectional view of the present invention;

[0032] Figure 3 This is an enlarged cross-sectional view of the sewage treatment tank structure in the present invention;

[0033] Figure 4 It is an enlarged schematic diagram of the structure of the support and guide mechanism in the present invention;

[0034] Figure 5 It is an enlarged schematic diagram of the connection structure of the sterilization and disinfection mechanism, the foam discharge mechanism, the cleaning and disturbing mechanism, and the supporting and guiding mechanism in the present invention;

[0035] Figure 6 It is an enlarged bottom view of the connection structure of the sterilization and disinfection mechanism, the foam discharge mechanism, the cleaning and disturbing mechanism, and the supporting and guiding mechanism in the present invention;

[0036] Figure 7 This is an enlarged sectional view of the structure of the sterilization and disinfection mechanism of the present invention;

[0037] Figure 8 It is an enlarged schematic diagram of the structure of the sterilization and disinfection component in the present invention;

[0038] Figure 9 It is an enlarged schematic diagram of the connection structure of the foam discharge mechanism and the cleaning and disturbing flow mechanism in the present invention;

[0039] Figure 10 It is an enlarged schematic diagram of the structure of the first supporting truss in the present invention;

[0040] Figure 11 This is an enlarged schematic diagram of the structure of the inner groove of the outer support frame of the present invention;

[0041] Figure 12 It is an enlarged schematic diagram of the structure of the foam liquid discharge mechanism in the present invention;

[0042] Figure 13 yes Figure 12 A magnified schematic diagram of the structure at A;

[0043] Figure 14 It is an enlarged schematic diagram of the structure of the cleaning and disturbing mechanism in the present invention;

[0044] Figure 15 It is an enlarged schematic diagram of the structure of the spoiler in the present invention;

[0045] Figure 16 It is an enlarged schematic diagram of the structure of the mounting seat and the limit baffle in the present invention.

[0046] In the figure: 10, support base; 11, drainage pipe end; 12, foam liquid guide ring; 13, sewage treatment tank; 14, water inlet pipe end; 15, foam discharge hole; 16, top cover;

[0047] 100, sterilization and disinfection mechanism; 200, foam discharge mechanism; 300, cleaning and flow disturbance mechanism; 400, support and flow guide mechanism;

[0048] 101, support ring groove; 102, first sealing plate; 103, sterilization and disinfection assembly; 104, second sealing plate; 105, guide ring assembly; 106, diversion and discharge port; 107, rotating support seat;

[0049] 1031. Spiral sterilization chamber; 1032. Partition; 1033. Reflecting prism; 1034. UV sterilization array unit;

[0050] 201, foam liquid conveying plate; 202, first supporting truss; 203, second supporting truss; 204, supporting slide bar; 205, supporting roller; 206, limiting pin; 207, supporting ring; 208, limiting guide groove; 209, limiting slider; 210, first spring; 211, second spring;

[0051] 2031, inner support frame; 2032, outer support frame; 2033, guide groove assembly;

[0052] 301, first displacement slot; 302, inner wall scraper; 303, return spring; 304, first slider; 305, traction rope; 306, spoiler; 307, inner limit block; 308, second slider; 309, mounting seat; 310, limit baffle;

[0053] 401, first guide barrel; 402, drainage through hole; 403, second guide barrel; 404, second displacement groove; 405, spiral guide plate. DETAILED DESCRIPTION

[0054] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0055] Example 1

[0056] like Figure 1 、 Figure 2 As shown, a disinfection device for treating petroleum wastewater includes a support base 10, a sewage treatment chamber 13 is provided on the top of the support base 10, a water inlet pipe end 14 is connected to the top of the sewage treatment chamber 13, and a drain pipe end 11 is connected to the bottom of the sewage treatment chamber 13. A foam guide ring 12 is provided on the outside of the sewage treatment chamber 13;

[0057] like Figures 1 to 3 、 Figures 5 to 8As shown, a sterilization and disinfection mechanism 100 for ultraviolet sterilization of petroleum wastewater is provided on the top of the sewage treatment tank 13. The sterilization and disinfection mechanism 100 includes two sets of supporting ring grooves 101 provided on the top of the inner wall of the sewage treatment tank 13. The inner wall of the sewage treatment tank 13 is provided with a first sealing plate 102 and a second sealing plate 104 adapted to the two sets of supporting ring grooves 101. A sterilization and disinfection component 103 is provided between the first sealing plate 102 and the second sealing plate 104 for sealing and fastening. 02 and the second sealing plate 104 rotate relative to the inner wall of the sewage treatment tank 13. A top cover 16 is provided on the top of the sewage treatment tank 13. A rotating support seat 107 is provided on the top of the first sealing plate 102. The middle part of the top of the top cover 16 is provided with an inlet pipe end 14 extending to the inside of the rotating support seat 107. The inlet pipe end 14 is fastened to the top cover 16. The rotating support seat 107 rotates and moves with the first sealing plate 102. A guide ring group 105 is provided in the middle part of the bottom of the second sealing plate 104.

[0058] The sterilization and disinfection component 103 includes a spiral sterilization and disinfection chamber 1031, a partition 1032, a reflective prism 1033 and an ultraviolet sterilization array unit 1034. The spiral sterilization and disinfection chamber 1031 is clamped and sealed between the first sealing plate 102 and the second sealing plate 104. The output end of the water inlet pipe end 14 passes through the first sealing plate 102 and extends to the middle of the spiral sterilization and disinfection chamber 1031. Several groups of reflective prisms 1033 are evenly spaced on both sides of the inner wall of the spiral sterilization and disinfection chamber 1031. Starting from the inner wall of the center of the spiral sterilization and disinfection chamber 1031, the reflective prisms 1033 are evenly spaced on both sides of the inner wall of the spiral sterilization and disinfection chamber 1031. Several groups of ultraviolet sterilization array units 1034 are also evenly spaced on both sides of the wall. The light source emitting ends of the ultraviolet sterilization array units 1034 correspond to the reflective prisms 1033, and the number of reflective prisms 1033 is four times or more than that of the ultraviolet sterilization array units 1034. A partition 1032 is provided between the first sealing plate 102 and the second sealing plate 104 at the output end of the spiral sterilization and disinfection chamber 1031. The second sealing plate 104 is provided at the output end of the spiral sterilization and disinfection chamber 1031 with a diversion and drainage port 106 connected to the interior of the sewage treatment chamber 13.

[0059] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figures 9 to 13 As shown, a support and diversion mechanism 400 for discharging the treated and disinfected sewage is provided in the middle of the bottom of the sterilization and disinfection mechanism 100;

[0060] The top of the outer side of the support and diversion mechanism 400 is provided with a foam discharge mechanism 200 that is squeezed and linked with the bottom of the sterilization and disinfection mechanism 100. The foam discharge mechanism 200 is used to guide and discharge the foam and impurities generated during the treatment of petroleum wastewater inside the sewage treatment tank 13. The foam discharge mechanism 200 includes a second support truss 203 that is fastened to the inside of the sewage treatment tank 13. The second support truss 203 includes an inner support frame 2031, an outer support frame 2032 and a guide groove group 2033. The inner support frame 2031 is a polygonal closed ring structure, wherein the number of sides of the inner support frame 2031 is greater than or equal to 4, and the outer support frame 2032 extends from the top corner of the inner support frame 2031 to the inner wall of the sewage treatment tank 13. And it is fastened to the inner wall of the sewage treatment tank 13, and the two sets of outer support frames 2032 located on the same side are both provided with a guide groove group 2033 on the side close to each other, and the inner sides of the two sets of guide groove groups 2033 jointly guide and support the foam conveying plate 201, and the guide groove group 2033 is composed of two groups of inner grooves distributed up and down and connected to each other end to end, wherein the groove depth of the starting end of the set of inner grooves located at the bottom is D1, and the groove depth of the end groove is D2, and the groove depth of the starting end of the other set of inner grooves close to the top is G2, and the groove depth of the end groove is G1, wherein D1=G2>D2=G1, wherein D1 and G1 ends are close to the position of the inner support frame 2031, and D2 and G2 ends are close to the position of the inner wall of the sewage treatment tank 13;

[0061] The inner wall of the sewage treatment tank 13 is located below the foam liquid conveying plate 201 and is fastened with a number of first support trusses 202 of the same number as the foam liquid conveying plate 201. The inner side of the first support trusses 202 is commonly provided with a support ring 207. The middle part of the first support trusses 202 is provided with a limited guide groove 208. The internal sliding of the limited guide groove 208 is provided with a limited slider 209. The top of the limited slider 209 is provided with a support slide bar 204. The top of the outer side of the support slide bar 204 is provided with a support roller 205. The outer side of the support roller 205 rotates in contact with the guide ring group 105 and is affected by the guide ring group 105. The liquid delivery plate 201 has an L-shaped bent plate structure with closed ends. Both ends of the inner side of the liquid delivery plate 201 are provided with limit pins 206 that penetrate the liquid delivery plate 201. One end of the limit pin 206 penetrates the liquid delivery plate 201 and is adapted to the guide groove group 2033. The outer side of the limit pin 206 is provided with a second spring 211 that is fastened to the liquid delivery plate 201. The outer side of the limit slider 209 is provided with a first spring 210 that is embedded in the limit guide groove 208.

[0062] like Figures 1 to 3 、 Figures 14 to 16As shown, the bottom of the outer side of the support guide mechanism 400 is provided with a cleaning disruptor mechanism 300 linked with the foam discharge mechanism 200, and the cleaning disruptor mechanism 300 is used to clean the inner wall of the sewage treatment tank 13 and directional guide the sewage inside the sewage treatment tank 13. The cleaning disruptor mechanism 300 includes several groups of first displacement grooves 301 evenly arranged at the bottom of the inner wall of the sewage treatment tank 13, and several inner wall scrapers 302 are arranged at positions that fit the inner wall of the sewage treatment tank 13. A first slider 304 that is adapted to the first displacement groove 301 is provided on one side of the inner wall scraper 302 that fits the first displacement groove 301, and both ends of the first slider 304 are provided with sliders that are tightly fitted into the two ends of the first displacement groove 301. A return spring 303 is fixedly connected, and several groups of spoilers 306 are evenly arranged on the inner side of the inner wall scraper 302. The other end of the spoiler 306 is commonly provided with an inner limit block 307. The inner limit block 307 and the inner side of the inner wall scraper 302 are both provided with a mounting seat 309 that is compatible with the spoiler 306. One side of the mounting seat 309 is provided with a limit baffle 310 that is compatible with the spoiler 306. The top of the inner wall scraper 302 is provided with a traction rope 305 that is interconnected with the bottom of the limit slider 209, and the traction rope 305 is turned by a guide ring provided at the bottom of the first support truss 202. A second slider 308 is provided in the middle of the inner limit block 307, which is originally away from the spoiler 306.

[0063] like Figures 1 to 4 As shown, the support and diversion mechanism 400 includes a second diversion barrel 403 arranged in the middle of the interior of the sewage treatment tank 13, a drainage pipe end 11 is provided in the middle of the bottom of the support base 10, and the input end of the drainage pipe end 11 is connected to the bottom of the second diversion barrel 403. The top of the second diversion barrel 403 is provided with a first diversion barrel 401, and the bottom of the outer side of the first diversion barrel 401 is provided with a plurality of drainage through holes 402. The outer side of the second diversion barrel 403 is evenly provided with a plurality of second displacement grooves 404, and the second displacement grooves 404 are adapted to the second slider 308. A plurality of spiral guide plates 405 are provided on the outer side of the second diversion barrel 403 near the bottom of the sewage treatment tank 13;

[0064] Several groups of foam drainage holes 15 extending into the interior of the sewage treatment tank 13 are evenly arranged on the outside of the sewage treatment tank 13. A foam guide ring 12 is arranged on the outside of the sewage treatment tank 13 at the bottom of the foam drainage hole 15. The vertical height of the foam drainage hole 15 is higher than the height of the drainage hole 402. The inner support frame 2031 and the support ring 207 are respectively mounted on the outside of the first guide barrel 401 and the second guide barrel 403. The overall rotation direction of the sterilization and disinfection mechanism 100 is opposite to the rotation direction of the sewage inside the sewage treatment tank 13. When the spoiler 306 moves upward, it pushes the water flow inside the sewage treatment tank 13 to rotate, and the top surface of the spiral guide plate 405 faces the flow direction of the water flow inside the sewage treatment tank 13.

[0065] The use process of the disinfection device for treating petroleum wastewater proposed in this embodiment is as follows: the water inlet pipe end 14 is connected to the external petroleum wastewater conveying mechanism, thereby conveying the wastewater to be sterilized and disinfected to the interior of the wastewater treatment tank 13;

[0066] The petroleum wastewater to be treated is first transported to the middle position of the sterilization and disinfection component 103 through the water inlet pipe end 14. At this time, the ultraviolet sterilization array unit 1034 is activated to generate an ultraviolet light array. The ultraviolet light generated by the ultraviolet sterilization array unit 1034 is refracted and totally reflected by the reflecting prism 1033, thereby extending the penetration of the ultraviolet light in the petroleum wastewater and prolonging the time for sterilization and disinfection of the wastewater.

[0067] By providing multiple groups of ultraviolet sterilization array units 1034, it is ensured that after the ultraviolet light is blocked and attenuated by the oil and sewage, it can be continued and replenished inside the spiral sterilization chamber 1031, thereby ensuring the sterilization and disinfection effect;

[0068] Furthermore, the petroleum wastewater after UV sterilization is tangentially introduced into the interior of the wastewater treatment tank 13 through the diversion and discharge port 106. The petroleum wastewater ejected through the diversion and discharge port 106 has an initial velocity and a driving force, thereby causing the sterilization and disinfection mechanism 100 as a whole to form a driving force in the opposite direction of the wastewater flow direction, causing the sterilization and disinfection mechanism 100 to rotate as a whole. With the overall rotation of the sterilization and disinfection mechanism 100, the guide ring assembly 105 rotates synchronously.

[0069] The petroleum wastewater discharged through the diversion and discharge port 106 rotates inside the wastewater treatment tank 13, and simultaneously undergoes a chemical disinfection reaction and flocculation inside the wastewater treatment tank 13. By adding a chemical reagent to the wastewater treatment tank 13, a chemical reaction is carried out on the petroleum wastewater, and flocculation is generated inside the wastewater treatment tank 13;

[0070] During the chemical reaction and flocculation process, foam and flocculants are generated. The sewage rotates, causing the flocculants and foam to rotate with it.

[0071] The top surface of the spiral guide plate 405 is designed to face the direction of sewage flow, so that the sewage at the bottom of the sewage treatment chamber 13 generates upward force during rotation, reducing the rotation of the sewage inside the sewage treatment chamber 13. The sewage is continuously displaced downward due to its own gravity, thereby allowing the flocs in the sewage to move upward synchronously.

[0072] As the guide ring assembly 105 follows the rotation, the guide ring assembly 105 squeezes the support roller 205, so that the support roller 205 drives the foam liquid conveying plate 201 on the outer side of the support slide bar 204 to follow the displacement, and the foam liquid conveying plate 201 is again guided and limited by the limit pin 206 and the guide groove assembly 2033 to move. When the foam liquid conveying plate 201 approaches the inner support frame 2031, the bottom of the foam liquid conveying plate 201 is above the foam and flocculants, and the limit pin 206 moves along the inner groove above the guide groove assembly 2033. When the foam liquid conveying plate 201 arrives at the position close to the inner support frame 2031, the foam liquid conveying plate 201 moves downward under the action of its own gravity, and drives the limit pin 206 to slide from the position G1 to the position D1. At this time, the bottom of the foam liquid conveying plate 201 is immersed in the sewage;

[0073] When the support slide bar 204 moves, the limit slide bar 209 is driven to move inside the limit guide groove 208, and the first spring 210 is stretched to generate a rebound force. As the guide ring group 105 continues to rotate, the guide ring group 105 no longer squeezes the support roller 205. At this time, under the action of the rebound force of the first spring 210, the limit slide bar 209, the support slide bar 204 and the support roller 205 are driven to move in the opposite direction, thereby driving the liquid delivery plate 201 to move in the opposite direction. At this time, the limit pin 206 is located in the inner groove below the guide groove group 2033. The position of the limit pin 206 is thereby scooped up for the flocculants and impurities on the top of the petroleum wastewater. As the limit pin 206 moves along the inner groove below the guide groove group 2033, the limit pin 206 moves from the position D1 to the position D2, and further moves to the position G2. At this time, the limit pin 206 is guided by the guide groove group 2033 and moves upward, and simultaneously drives the foam liquid conveying plate 201 to move upward, so that the flocculants and impurities scooped up by the foam liquid conveying plate 201 are conveyed to the position of the foam discharge through hole 15 for discharge.

[0074] During the displacement of the limit slider 209, when the limit slider 209 approaches the position of the support ring 207, the limit slider 209 pulls the traction rope 305 to drive the group of inner wall scrapers 302 to move upward, and the upward displacement of the inner wall scrapers 302 drives the spoiler 306 to move upward synchronously. At this time, the top of the spoiler 306 is subjected to the resistance of the sewage and deflected in conjunction with the limiting effect of the limit baffle 310, so that the top surface of the spoiler 306 forms a structure in the same direction as the rotation direction of the sewage. As a result, when the spoiler 306 moves upward, it plays a secondary role in promoting the rotation of the sewage, thereby reducing the attenuation of the sewage rotation.

[0075] When the limit slider 209 moves in the reverse direction, the inner wall scraper 302 is reset downward under the action of the rebound force of the reset spring 303, thereby driving the spoiler 306 to reset in the reverse direction simultaneously. At this time, the spoiler 306 is also subjected to the resistance of the sewage and the limiting effect of the limit baffle 310, so that the spoiler 306 is in a vertical downward state, thereby reducing the blocking effect on the sewage.

[0076] After the petroleum wastewater has been sterilized and disinfected, after being separated from the foam flocs, the wastewater overflows through the drainage hole 402 and is further discharged through the drainage pipe end 11, thereby completing the sterilization and disinfection of the wastewater.

[0077] Example 2

[0078] like Figure 1 、 Figure 2 As shown, a disinfection method for treating petroleum wastewater, the specific method steps are as follows:

[0079] Step 1: First, the petroleum wastewater to be treated is injected into the sewage treatment chamber 13 through the water inlet pipe end 14 and transported to the interior of the sterilization and disinfection mechanism 100. The sterilization and disinfection mechanism 100 sterilizes the petroleum wastewater with ultraviolet light. The spiral structure design inside the sterilization and disinfection mechanism 100 causes the petroleum wastewater to flow and be transported to the interior of the sewage treatment chamber 13.

[0080] Step 2: The sewage entering the sewage treatment chamber 13 has an initial speed and direction, thereby generating tangential power to rotate inside the sewage treatment chamber 13. The rotation direction is exactly opposite to the rotation direction of the sterilization and disinfection mechanism 100 as a whole, and the speed difference is 10-20 rpm.

[0081] Step 3: Further, the rotation of the sterilization and disinfection mechanism 100 drives the foam liquid discharge mechanism 200 to move. At the same time, the displacement of the foam liquid discharge mechanism 200 cleans flocculants, floating foam, impurities, etc. in the petroleum wastewater and guides them out from the position of the foam liquid guide ring 12;

[0082] Step 4: At the same time, the position of the foam discharge mechanism 200 drives the cleaning and disturbing mechanism 300 to move up and down, thereby cleaning the inner wall of the sewage treatment tank 13, preventing flocculants, floating foam, impurities, etc. in the petroleum sewage from adhering to the surface, and promoting further flow of the sewage;

[0083] Step 5: Finally, the sewage after sterilization and disinfection is discharged from the position of the supporting and guiding mechanism 400 and guided out through the drainage pipe end 11, thereby completing the sterilization and disinfection process of the petroleum sewage.

[0084] 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 specific implementation methods. The above specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of the embodiments of the present invention, all of which are protected by the embodiments of the present invention.

Claims

1. A disinfection device for treating petroleum wastewater, characterized in that: It comprises a support base (10), a sewage treatment chamber (13) is provided on the top of the support base (10), the top of the sewage treatment chamber (13) is connected to a water inlet pipe end (14), and the bottom of the sewage treatment chamber (13) is connected to a drainage pipe end (11), and a foam guide ring (12) is provided on the outside of the sewage treatment chamber (13); A sterilization and disinfection mechanism (100) for performing ultraviolet sterilization and disinfection on petroleum wastewater is provided on the top of the sewage treatment tank (13); A supporting and diverting mechanism (400) for discharging the treated and disinfected sewage is provided in the middle of the bottom of the sterilization and disinfection mechanism (100); A foam discharge mechanism (200) is provided on the top of the outer side of the supporting and guiding mechanism (400) and is linked to the bottom of the sterilizing and disinfecting mechanism (100) by extrusion. The foam discharge mechanism (200) is used to guide and discharge foam and impurities generated during the treatment of petroleum wastewater inside the wastewater treatment tank (13); A cleaning and disturbing mechanism (300) is provided at the bottom of the outer side of the supporting and guiding mechanism (400), which is linked to the foam discharge mechanism (200). The cleaning and disturbing mechanism (300) is used to clean the inner wall of the sewage treatment chamber (13) and to directional guide the sewage inside the sewage treatment chamber (13).

2. A disinfection device for treating petroleum wastewater according to claim 1, characterized in that: The sterilization and disinfection mechanism (100) comprises two groups of supporting ring grooves (101) arranged on the top of the inner wall of the sewage treatment chamber (13); the inner wall of the sewage treatment chamber (13) is provided with a first sealing plate (102) and a second sealing plate (104) adapted to the two groups of supporting ring grooves (101); a sterilization and disinfection component (103) is provided between the first sealing plate (102) and the second sealing plate (104) for sealing and fastening; the first sealing plate (102) and the second sealing plate (104) are relative to the inner wall of the sewage treatment chamber (13); Rotational displacement, a top cover (16) is provided on the top of the sewage treatment tank (13), a rotational support seat (107) is provided on the top of the first sealing plate (102), a water inlet pipe end (14) extending to the inside of the rotational support seat (107) is provided in the middle of the top of the top cover (16), the water inlet pipe end (14) is fastened to the top cover (16), the rotational support seat (107) rotates and displaces following the first sealing plate (102), and a guide ring group (105) is provided in the middle of the bottom of the second sealing plate (104).

3. A disinfection device for treating petroleum wastewater according to claim 2, characterized in that: The sterilization and disinfection assembly (103) comprises a spiral sterilization and disinfection chamber (1031), a partition (1032), a reflective prism (1033) and an ultraviolet sterilization array unit (1034); the spiral sterilization and disinfection chamber (1031) is clamped and sealed between the first sealing plate (102) and the second sealing plate (104); the output end of the water inlet pipe end (14) passes through the first sealing plate (102) and extends to the middle of the spiral sterilization and disinfection chamber (1031); a plurality of groups of reflective prisms (1033) are evenly spaced on both sides of the inner wall of the spiral sterilization and disinfection chamber (1031); and a plurality of reflective prisms (1033) are evenly spaced on both sides of the inner wall of the spiral sterilization and disinfection chamber (1031). 31) A plurality of groups of ultraviolet sterilization array units (1034) are equally spaced on both sides of the inner wall. The light source emission end of the ultraviolet sterilization array unit (1034) corresponds to the reflective prism (1033), and the number of the reflective prism (1033) is 4 times or more than the number of the ultraviolet sterilization array unit (1034). A partition (1032) is provided between the first sealing plate (102) and the second sealing plate (104) at the output end of the spiral sterilization and disinfection chamber (1031). The second sealing plate (104) is provided at the output end of the spiral sterilization and disinfection chamber (1031) with a diversion and discharge port (106) connected to the interior of the sewage treatment chamber (13).

4. A disinfection device for treating petroleum wastewater according to claim 2, characterized in that: The foam liquid discharge mechanism (200) comprises a second support truss (203) that is fastened to the inside of the sewage treatment bin (13), the second support truss (203) comprising an inner support frame (2031), an outer support frame (2032) and a guide groove group (2033), the inner support frame (2031) being a polygonal closed ring structure, wherein the number of sides of the inner support frame (2031) is greater than or equal to 4, the outer support frame (2032) extends from the top corner of the inner support frame (2031) to the inner wall of the sewage treatment bin (13) and is fastened to the inner wall of the sewage treatment bin (13), and the two groups of outer support frames (2032) located on the same side are both provided with a guide groove group (2033) on the side close to each other, and the inner sides of the two groups of guide groove groups (2033) jointly guide and support the foam liquid conveying plate (201).

5. A disinfection device for treating petroleum wastewater according to claim 4, characterized in that: The guide groove group (2033) is composed of two groups of inner grooves distributed vertically and connected end to end, wherein the groove depth of the inner groove of the group located at the bottom is D1 at the starting end and D2 at the end, and the groove depth of the inner groove of the other group located near the top is G2 at the starting end and G1 at the end, wherein D1=G2>D2=G1, wherein the ends of D1 and G1 are close to the position of the inner support frame (2031), and the ends of D2 and G2 are close to the position of the inner wall of the sewage treatment tank (13).

6. A disinfection device for treating petroleum wastewater according to claim 4, characterized in that: The inner wall of the sewage treatment tank (13) is located below the foam liquid conveying plate (201) and is fastened with a plurality of first support trusses (202) having the same number as the foam liquid conveying plate (201). The inner sides of the first support trusses (202) are provided with support rings (207). The middle parts of the first support trusses (202) are provided with limited guide grooves (208). The internal sliding of the limited guide grooves (208) is provided with limited sliders (209). The top of the limited slider (209) is provided with a support slide bar (204). The top of the outer side of the support slide bar (204) is provided with a support roller (205). The outer side of the support roller (205) rotates in contact with the guide ring group (105) and is driven by the guide ring group (105). ) has an extrusion and guiding effect, one end of the back side of the foam liquid conveying plate (201) is sleeved on the outer side of the support slide bar (204) and moves up and down on the outer side of the support slide bar (204), the foam liquid conveying plate (201) is an L-shaped bent plate structure with closed ends, both ends of the inner side of the foam liquid conveying plate (201) are provided with a limit pin (206) passing through the foam liquid conveying plate (201), one end of the limit pin (206) passing through the foam liquid conveying plate (201) is adapted to the guide groove group (2033), the outer side of the limit pin (206) is provided with a second spring (211) that is fastened to the foam liquid conveying plate (201), and the outer side of the limit slider (209) is provided with a first spring (210) embedded in the limit guide groove (208).

7. A disinfection device for treating petroleum wastewater according to claim 6, characterized in that: The cleaning and disturbing mechanism (300) comprises a plurality of groups of first displacement grooves (301) uniformly arranged at the bottom of the inner wall of the sewage treatment chamber (13); a plurality of groups of inner wall scrapers (302) are arranged at positions abutting the inner wall of the sewage treatment chamber (13); a first slider (304) adapted to the first displacement groove (301) is arranged on one side of the inner wall scraper (302) abutting the first displacement groove (301); and return springs (303) fastened to the two ends of the first displacement groove (301) are arranged at both ends of the first slider (304); a plurality of groups of spoilers (306) are uniformly arranged on the inner side of the inner wall scraper (302); and the other side of the spoiler (306) is provided with a first slider (304) adapted to the first displacement groove (301). The ends are jointly provided with an inner limit block (307), the inner sides of the inner limit block (307) and the inner wall scraper (302) are both provided with a mounting seat (309) that is mutually compatible with the spoiler (306), and one side of the mounting seat (309) is provided with a limit baffle (310) that is mutually compatible with the spoiler (306), and the top of the inner wall scraper (302) is provided with a traction rope (305) that is mutually connected to the bottom of the limit slider (209), and the traction rope (305) is turned by a guide ring provided at the bottom of the first support truss (202), and a second slider (308) is provided in the middle of the side of the inner limit block (307) that is originally away from the spoiler (306).

8. A disinfection device for treating petroleum wastewater according to claim 7, characterized in that: The support and diversion mechanism (400) comprises a second diversion barrel (403) arranged in the middle of the interior of the sewage treatment bin (13); a drainage pipe end (11) is arranged in the middle of the bottom of the support base (10); the input end of the drainage pipe end (11) is communicated with the bottom of the second diversion barrel (403); a first diversion barrel (401) is arranged on the top of the second diversion barrel (403); a plurality of drainage through holes (402) are arranged on the bottom of the outer side of the first diversion barrel (401); a plurality of second displacement grooves (404) are evenly arranged on the outer side of the second diversion barrel (403); the second displacement grooves (404) and the second slider (308) are adapted to each other; and a plurality of spiral diversion plates (405) are arranged on the outer side of the second diversion barrel (403) near the bottom of the sewage treatment bin (13).

9. A disinfection device for treating petroleum wastewater according to claim 8, characterized in that: The outside of the sewage treatment chamber (13) is evenly provided with a plurality of groups of foam discharge holes (15) extending into the interior of the sewage treatment chamber (13); a foam liquid guide ring (12) is provided on the outside of the sewage treatment chamber (13) at the bottom of the foam discharge holes (15); the vertical height of the foam discharge holes (15) is higher than the height of the drainage holes (402); the inner support frame (2031) and the support ring (207) are respectively sleeved on the outside of the first guide barrel (401) and the second guide barrel (403); the overall rotation direction of the sterilization and disinfection mechanism (100) is opposite to the rotation direction of the sewage inside the sewage treatment chamber (13); the spoiler (306) pushes the water flow inside the sewage treatment chamber (13) to rotate when it moves upward, and the top surface of the spiral guide plate (405) faces the flow direction of the water flow inside the sewage treatment chamber (13).

10. A method for disinfecting petroleum wastewater, using the disinfection device for treating petroleum wastewater as claimed in claim 1, wherein the specific steps are as follows: Step 1: First, the petroleum wastewater to be treated is injected into the interior of the sewage treatment chamber (13) through the water inlet pipe end (14), and is transported to the interior of the sterilization and disinfection mechanism (100). The petroleum wastewater is sterilized and disinfected by ultraviolet light through the sterilization and disinfection mechanism (100). The spiral structure design inside the sterilization and disinfection mechanism (100) causes the petroleum wastewater to flow and is transported to the interior of the sewage treatment chamber (13); Step 2: Then, the sewage entering the sewage treatment chamber (13) has an initial speed and direction, thereby generating a tangential force to rotate inside the sewage treatment chamber (13), and its rotation direction is exactly opposite to the overall rotation direction of the sterilization and disinfection mechanism (100), and the speed difference is 10 to 20 rpm; Step 3: Further, the rotation of the sterilization and disinfection mechanism (100) drives the foam liquid discharge mechanism (200) to move, and at the same time, the displacement of the foam liquid discharge mechanism (200) cleans flocculants, floating foam, impurities, etc. in the petroleum wastewater and guides them out from the position of the foam liquid guide ring (12); Step 4: At the same time, the position of the foam discharge mechanism (200) drives the cleaning flow disturbance mechanism (300) to move up and down, thereby cleaning the inner wall of the sewage treatment chamber (13), preventing flocculants, floating foam, impurities, etc. in the petroleum sewage from adhering to its surface, and promoting further flow of the sewage; Step 5: Finally, the sewage after sterilization and disinfection is discharged from the position of the supporting diversion mechanism (400) and led out through the drainage pipe end (11), thereby completing the sterilization and disinfection process of the petroleum sewage.

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