CN213357048U - Clean type oil gas field sewage advanced oxidation reaction device and treatment system - Google Patents
Clean type oil gas field sewage advanced oxidation reaction device and treatment system Download PDFInfo
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- CN213357048U CN213357048U CN202021768320.9U CN202021768320U CN213357048U CN 213357048 U CN213357048 U CN 213357048U CN 202021768320 U CN202021768320 U CN 202021768320U CN 213357048 U CN213357048 U CN 213357048U
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Abstract
The utility model discloses a clean type oil gas field sewage advanced oxidation reaction unit and processing system, be equipped with the delivery port on the jar body, backward flow export and water inlet, oil gas field sewage gets into from the water inlet, oil gas field sewage after the reaction flows from the delivery port, the circulating pump can carry the distributor with the backward flow liquid from the backward flow export in, the internal portion of jar is located to the distributor, charge device can carry the oxidant to the distributor in, the distributor is more than one, when the distributor is a plurality of, a plurality of distributors set up along vertical direction at the internal portion of jar. Has the advantages that: the fluid is refluxed to the tank body through a circulating pump, and the unreacted medicament is secondarily utilized; the reflux liquid sprays the oxidant into the tank body, so that the contact between the wastewater and the oxidant is increased, and the oxidation effect is increased; the dual jet action of venturi and nozzle increases the speed that fluid got into the jar internal, increases the torrent degree of fluid, increases the contact of waste water and oxidant, alleviates the sediment of suspended solid simultaneously, slows down nozzle jam and scale deposit.
Description
Technical Field
The utility model relates to a sewage treatment technical field, concretely relates to clean type oil gas field sewage advanced oxidation reaction unit and processing system.
Background
The oilfield sewage mainly comprises various oily waste liquids such as oilfield produced water, drilling sewage, fracturing flow-back fluid and the like. The pretreatment of the oil field sewage is difficult, and the standard treatment of the waste water with poor biodegradability and high relative molecular mass of pollutants is difficult by the conventional physical and biological treatment methods. The advanced oxidation method is characterized in that hydroxyl free radicals (. OH) with strong oxidation capacity are generated, and the hydroxyl free radicals can oxidize macromolecular refractory organics into low-toxicity or non-toxic micromolecular substances, thereby improving the biodegradability of the wastewater or completely mineralizing pollutants at one time, and having good treatment effect on the wastewater which is refractory to degradation, refractory to biochemical treatment and difficult to treat by a conventional mode. The most widely used, best-effect and mature advanced oxidation method belongs to Fenton advanced oxidation method and ozone advanced oxidation method. The Fenton advanced oxidation method generates relatively large amount of sludge, and the salt content of the sewage is increased by adding various medicaments. The ozone advanced oxidation method using ozone, hydrogen peroxide, plasma and the like as main oxidation media can achieve excellent oxidation effect, can avoid generating a large amount of sludge, can convert the sludge into oxygen or water after the action of a medicament, and has no secondary pollution, so the ozone advanced oxidation method is also called as a clean advanced oxidation technology.
The ozone advanced oxidation technology firstly needs to overcome the problem of gas-liquid mass transfer, the existing common clean oil-gas field sewage advanced oxidation reactor is usually designed to reach a certain height to provide enough gas retention time to meet the requirements of mass transfer and reaction, a packing layer is also arranged in the reactor to increase the gas retention time, and although the gas retention time is increased to a certain degree, the problems of insufficient gas-liquid contact and incomplete reaction still exist. Moreover, the sewage of the oil-gas field is high in oil content, polymer content and suspended matter content and easy to scale, and is easy to precipitate and scale in the reaction process, so that the packing, the microporous aeration head and the like are easy to block, shutdown maintenance is caused, and the operation cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough that prior art is overcome to the purpose, provides a clean type oil gas field sewage advanced oxidation reaction unit and processing system that oxidation efficiency is high, longe-lived, operation and cost of maintenance are low.
The purpose of the utility model is achieved through the following technical measures: the utility model provides a clean type oil gas field sewage advanced oxidation reaction unit, includes jar body, circulating pump, charge device and distributor, be equipped with delivery port, backward flow export and water inlet on the jar body, oil gas field sewage is followed the water inlet gets into, and oil gas field sewage after the reaction is followed the delivery port flows out, the backward flow export through first pipeline with the entry linkage of circulating pump, the export of circulating pump pass through the second pipeline with the distributor is connected, the distributor is located jar internal portion, charge device can carry the oxidant to the distributor in, the distributor is more than one, works as when the distributor is a plurality of, and is a plurality of the distributor is followed jar internal portion vertical direction sets up.
The utility model has the advantages that: the distributor can make the oxidant fully contact with the sewage in the tank body, and simultaneously the distributor sprays the oxidant and the backflow liquid into the tank body to stir the fluid in the tank body, so that the fluidity of the sludge in the tank body is increased, and the sludge is prevented from being deposited on the distributor to block the distributor. In addition, the distributor sprays the oxidant into the tank body, so that the mixing of the oxidant and the sewage is increased, the oxidant is effectively contacted with organic matters, and the oxidation reaction effect is increased; the mixing of oxidant and sewage can be further increased to set up a plurality of distributors, increases the effective contact of oxidant and organic matter, and in addition, use a plurality of distributors simultaneously still can further increase the flow of the internal fluid of jar, increase fluidic torrent degree, further avoid mud deposit to block up the distributor on the distributor.
Further, when the distributor includes a plurality of distributors, the plurality of distributors are arranged in parallel.
Further, the dosing device comprises a venturi tube, the venturi tube comprises a liquid inlet, a liquid outlet and a suction inlet, the second pipeline comprises a second pipeline A and a second pipeline B, one end of the second pipeline A is communicated with an outlet of the circulating pump, the other end of the second pipeline A is communicated with the liquid inlet of the venturi tube, one end of the second pipeline B is communicated with the liquid outlet of the venturi tube, the other end of the second pipeline B is communicated with the distributor, the suction inlet comprises at least 1, and the oxidant enters the venturi tube from the suction inlet; when the oxidant is liquid, the dosing device further comprises a dosing pump, the dosing pump is communicated with the suction inlet of the Venturi tube, and the dosing pump can pump the liquid oxidant into the Venturi tube.
The beneficial effects of the further technical scheme are that: the oxidant and the reflux liquid enter the tank body together, the oxidant is sprayed into the tank body through the reflux liquid, the oxidant is further effectively contacted with organic matters, the flow velocity of the fluid can be increased by the venturi tube, the fluid enters the distributor after being accelerated by the venturi tube and enters the tank body after being accelerated for the second time, the fluid enters the tank body at a high speed through two jet flow acceleration, the turbulence degree of the fluid in the tank body is further increased, the oxidant and the wastewater are fully mixed, the wastewater is fully contacted with the oxidant, and in addition, the further increase of the turbulence degree can further prevent sludge from being deposited on the distributor to block the distributor; the Venturi tube is provided with a plurality of suction inlets, and can be used for simultaneously adding a plurality of medicaments into the tank body to realize the synergistic advanced oxidation reaction.
Further, the distributor comprises a water distribution pipe and a plurality of nozzles, wherein the inlet end of the water distribution pipe is connected with the liquid outlet of the venturi tube through a second pipeline B, and the plurality of nozzles are arranged on the water distribution pipe to spray the oxidant and the reflux liquid in the tank body.
The beneficial effects of the further technical scheme are that: the distributor adopts the water distribution pipe and the nozzle to replace the traditional aeration head, the diameter of the spray outlet on the nozzle is larger than that of the aeration hole on the aeration head, and the diameter of the spray outlets of the oxidant and the reflux liquid is increased to prevent the blockage of the distributor caused by sludge deposition.
Furthermore, the water outlet, the backflow outlet and the water inlet are sequentially arranged from top to bottom; the distributor is located between the backflow outlet and the water inlet, or the distributor is located below the water inlet.
Furthermore, the clean oil and gas field sewage advanced oxidation reaction device also comprises a baffle plate, wherein the baffle plate is arranged on the inner side wall of the tank body and positioned between the water outlet and the water inlet, and the number of the baffle plates is more than one.
Furthermore, the baffle plate is a tongue-shaped plate or a circular plate with the diameter same as the inner diameter of the tank body, and water distribution holes are formed in the circular plate; when the baffle plates are tongue-shaped plates and are multiple, the baffle plates are distributed on the inner side wall of the tank body in a staggered manner; or when the baffle plate is a tongue-shaped plate, the baffle plate forms an included angle of 0-30 degrees with the horizontal direction and is obliquely arranged downwards.
The beneficial effects of the further technical scheme are that: the baffle plate can increase the flow track of fluid in the tank body, increase the retention time of the oxidant in the tank body, increase the reaction time and further increase the reaction effect.
Further, the circulation pump is a positive displacement pump.
Further, the ratio of the reflux quantity of the circulating pump to the water inflow of the water inlet is 30-200%.
The treatment system comprises the clean oil and gas field sewage advanced oxidation reaction device, and further comprises an oxidant supply device and a sewage source, wherein the sewage source is connected with a water inlet of the tank body through a pipeline, and the oxidant supply device is connected with the dosing device.
Further, the oxidant supply device comprises one or more of an ozone generation device, a plasma generation device and a hydrogen peroxide storage tank.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic diagram of a first structure of the advanced wastewater oxidation reaction device for clean oil and gas fields.
FIG. 2 is a schematic diagram of the structure II of the clean oil and gas field sewage advanced oxidation reaction device.
Fig. 3 is a schematic diagram of a distributor including a semi-annular water distribution pipe.
FIG. 4 is a schematic view of the structure of a distributor including a water distribution pipe shaped like a Chinese character feng.
Fig. 5 is a schematic view of the structure of a distributor comprising a cross-shaped water distribution pipe.
FIG. 6 is a schematic view of a circular plate baffle arrangement one.
Fig. 7 is a schematic view of a second circular plate baffle structure.
FIG. 8 is a schematic diagram of the third structure of the clean oil and gas field sewage advanced oxidation reaction device.
Fig. 9 is a schematic view of the structure of the processing system.
The system comprises a tank 1, a water inlet 2, a water outlet 3, a reflux outlet 4, a circulating pump 5, a distributor 6, an inlet end of a water distribution pipe 6-1, a water distribution pipe 6-2, a spray head 6-3, a venturi tube 7, a liquid inlet 7-1, a liquid outlet 7-2, a first pipeline 8, a second pipeline 9-1, a second pipeline A, a second pipeline 9-2, a second pipeline B, a sludge discharge port 10, a baffle plate 11, a water distribution hole 12, a sewage source 13 and an oxidant supply device 14.
Detailed Description
As shown in fig. 1 to 9, a clean type advanced oxidation reaction device of oil and gas field sewage, including jar body 1, circulating pump 5, charge device and distributor 6, be equipped with delivery port 3, backward flow export 4 and water inlet 2 on the jar body 1, still be equipped with mud discharging port 10 on the jar body 1, mud discharging port 10 is used for discharging the sedimentary mud in the jar body 1, and oil and gas field sewage is followed water inlet 2 gets into, and oil and gas field sewage after the reaction is followed delivery port 3 flows out, backward flow export 4 through first pipeline 8 with circulating pump 5's entry linkage, circulating pump 5's export pass through second pipeline 9 with distributor 6 connects, distributor 6 is located inside the jar body 1, charge device can carry the oxidant to distributor 6 in, distributor 6 is one. In other embodiments, the distributor 6 may be a plurality of distributors, and when the distributor 6 is a plurality of distributors 6, the plurality of distributors 6 are arranged in parallel along the vertical direction inside the tank 1.
The medicine adding device comprises a Venturi tube 7, the Venturi tube 7 comprises a liquid inlet 7-1, a liquid outlet 7-2 and a suction inlet, the second pipeline 9 comprises a second pipeline A9-1 and a second pipeline B9-2, one end of the second pipeline A9-1 is communicated with an outlet of the circulating pump 5, the other end of the second pipeline A9-1 is communicated with the liquid inlet 7-1 of the Venturi tube 7, one end of the second pipeline B9-2 is communicated with the liquid outlet 7-2 of the Venturi tube 7, the other end of the second pipeline B9-2 is communicated with the distributor 6, the suction inlet comprises at least 1, and the oxidant enters the Venturi tube 7 through the suction inlet. In other embodiments, when the oxidizer is a liquid, the dosing device further comprises a dosing pump, the dosing pump is communicated with the suction inlet of the venturi tube 7, and the dosing pump can pump the liquid oxidizer into the venturi tube 7.
The distributor 6 comprises 1 water distribution pipe 6-2 and 20 nozzles 6-3, wherein the inlet end 6-1 of the water distribution pipe is connected with the liquid outlet 7-2 of the Venturi tube 7 through a second pipeline B9-2, and the 20 nozzles 6-3 are uniformly distributed on the water distribution pipe 6-1. In other embodiments, the nozzle 6-3 may further include a plurality of nozzles 6-3, and a plurality of the nozzles 6-3 are disposed on the water distribution pipe 6-2 to spray the oxidizer and the reflux liquid in the tank 1.
The water distribution pipe 6-2 is an annular pipe, the outer diameter of the water distribution pipe 6-2 is matched with the inner diameter of the tank body 1, or is slightly smaller than the inner diameter of the tank body 1, and the nozzle 6-3 is arranged on the inner side of the annular pipe. In other embodiments, the water distribution pipe 6-2 may be a semi-circular pipe (see fig. 3 in detail), or the water distribution pipe 6-2 may be a "full" pipe (see fig. 4 in detail), or the water distribution pipe 6-2 may be a "cross" pipe (see fig. 5 in detail). When the water distribution pipe 6-2 is a semi-annular pipe, the outer diameter of the water distribution pipe 6-2 is matched with the inner diameter of the tank body 1, or is slightly smaller than the inner diameter of the tank body 1, and the nozzle 6-3 is arranged on the inner side of the semi-annular pipe; when the water distribution pipe 6-2 is a 'feng' shaped pipe or a 'cross' shaped pipe, the diameter of the circumscribed circle of the water distribution pipe 6-2 is matched with the inner diameter of the tank body 1 or is slightly smaller than the inner diameter of the tank body 1, and the nozzle 6-3 is arranged on a branch pipe of the water distribution pipe 6-2.
The water outlet 3, the backflow outlet 4 and the water inlet 2 are sequentially arranged from top to bottom; the distributor 6 is located between the return outlet 4 and the water inlet 2. In other embodiments, the distributor 6 may also be located below the water inlet 2 (see fig. 2 for details).
The clean type oil and gas field sewage advanced oxidation reaction device further comprises a baffle plate 11, the baffle plate 11 is arranged on the inner side wall of the tank body 1 and is positioned between the water outlet 3 and the water inlet 2, the baffle plate 11 is a tongue-shaped plate, the maximum length of the baffle plate 11 is smaller than the inner diameter of the tank body 1, the baffle plate 11 is arranged in the horizontal direction, the baffle plate 11 is 4, and the baffle plates 11 are distributed on the inner side wall of the tank body 1 in a staggered mode. In other embodiments, the baffle 11 may be more than one. In other embodiments, the baffles 11 may also be angled 0-30 ° from horizontal and angled downward (see fig. 8 for details). In other embodiments, the baffle 11 may also be a circular plate with the same diameter as the inner diameter of the tank, and the circular plate is provided with a plurality of water distribution holes 12, the plurality of water distribution holes 12 are uniformly distributed on the whole circular plate (see fig. 6 for details), or the plurality of water distribution holes 12 are uniformly distributed on one half of the circular plate, and the other half of the circular plate is not provided with the water distribution holes 12 (see fig. 7 for details). When the baffle 11 is a plurality of circular plates and the water distribution holes 12 are located on one half of the circular plates, the half of the circular plates provided with the water distribution holes 12 and the half without the water distribution holes 12 are distributed in a staggered manner.
The circulation pump 5 is a positive displacement pump. Specifically, the displacement pump is a diaphragm pump, a screw pump or a plunger pump, and the circulating pump 5 can be selected according to the properties of the wastewater and the oxidant.
The ratio of the reflux quantity of the circulating pump 5 to the water inflow quantity of the water inlet 2 is 30-200%. Specifically, the ratio of the backflow amount of the circulating pump 5 to the water inflow amount of the water inlet 2 can be selected according to the property of the wastewater, when the content of pollutants difficult to treat in the wastewater is high, a high ratio, for example, 200%, can be adopted, and the backflow amount of a large fluid can be adopted, so that the wastewater can flow back into the tank body 1 to continue to react, and the reaction effect is improved; when the content of the pollutants difficult to treat in the wastewater is low, a lower ratio, for example, 30%, can be adopted, and a smaller reflux amount can meet the treatment requirement.
A treatment system comprises the clean oil and gas field sewage advanced oxidation reaction device, and further comprises an oxidant supply device 14 and a sewage source 13, wherein the sewage source 13 is connected with the water inlet of the tank body 1 through a pipeline, and the oxidant supply device 14 is connected with the chemical adding device (see the detailed view in fig. 9).
The oxidant supply device 14 includes one or more of an ozone generating device, a plasma generating device, and a hydrogen peroxide storage tank.
The working principle is as follows:
waste water gets into jar body 1 through water inlet 2 in, along with letting in constantly of waste water, the content of jar internal waste water of 1 is also more and more, and when the waste water in jar body 1 reachd delivery port 3, open circulating pump 5 and let in the oxidant to jar body 1 simultaneously, waste water reacts in jar body 1 with the oxidant, and circulating pump 5 takes out the fluid in jar body 1 and flows back again and continue to react in jar body 1 simultaneously. As the flow rate of the fluid increases and the pressure decreases as the fluid passes through the venturi 7, oxidant may be drawn into the venturi 7 by the pressure differential. Therefore, when the oxidant is a gaseous oxidant, the continuous introduction of the oxidant can be achieved by means of pressure difference only. When the oxidant is a liquid oxidant, the oxidant cannot be introduced only by pressure difference due to high liquid density, and the dosing pump needs to be started to pump the oxidant into the venturi tube 7 through the dosing pump.
In the actual use process of the clean advanced oxidation reaction device for oil and gas field sewage, an ultraviolet lamp and an ultrasonic generator can be arranged on the inner wall of the tank body 1, a catalyst and the like are filled in the tank body 1, and the oxidation reaction rate is further improved by loading other auxiliary means on the reaction device.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a clean type oil gas field sewage advanced oxidation reaction unit which characterized in that: including a jar body, circulating pump, charge device and distributor, be equipped with delivery port, backward flow export and water inlet on the jar body, oil gas field sewage follows the water inlet gets into, and oil gas field sewage after the reaction is followed the delivery port flows, the circulating pump can be followed the backward flow liquid the backward flow export is carried in the distributor, the distributor is located the internal portion of jar, charge device can carry the oxidant to the distributor in, the distributor is more than one, works as when the distributor is a plurality of, and is a plurality of the distributor is in the internal portion of jar sets up along vertical direction.
2. The clean oil and gas field sewage advanced oxidation reaction device of claim 1, characterized in that: the dosing device comprises a Venturi tube, the Venturi tube comprises a liquid inlet, a liquid outlet and a suction inlet, the liquid inlet is communicated with an outlet of the circulating pump, the liquid outlet is communicated with the distributor, the suction inlet comprises at least 1, and the oxidant enters the Venturi tube from the suction inlet; when the oxidant is liquid, the dosing device further comprises a dosing pump, and the dosing pump can pump the liquid oxidant into the venturi tube.
3. The clean oil and gas field sewage advanced oxidation reaction device of claim 2, characterized in that: the distributor comprises a water distribution pipe and a plurality of nozzles, wherein the inlet end of the water distribution pipe is connected with the liquid outlet of the Venturi tube, and the plurality of nozzles are arranged on the water distribution pipe to spray oxidant and reflux liquid in the tank body.
4. The clean oil and gas field sewage advanced oxidation reaction device of claim 1, characterized in that: the water outlet, the backflow outlet and the water inlet are sequentially arranged from top to bottom; the distributor is located between the backflow outlet and the water inlet, or the distributor is located below the water inlet.
5. The clean oil and gas field sewage advanced oxidation reaction device of claim 1, characterized in that: the clean oil and gas field sewage advanced oxidation reaction device further comprises a baffle plate, the baffle plate is arranged on the inner side wall of the tank body and located between the water outlet and the water inlet, and the number of the baffle plates is more than one.
6. The clean oil and gas field sewage advanced oxidation reaction device of claim 5, characterized in that: the baffle plate is a tongue-shaped plate or a circular plate with the diameter same as the inner diameter of the tank body, and water distribution holes are formed in the circular plate;
when the baffle plates are tongue-shaped plates and are multiple, the baffle plates are distributed on the inner side wall of the tank body in a staggered manner;
or when the baffle plate is a tongue-shaped plate, the baffle plate forms an included angle of 0-30 degrees with the horizontal direction and is obliquely arranged downwards.
7. The clean oil and gas field sewage advanced oxidation reaction device of claim 1, characterized in that: the circulating pump is a positive displacement pump.
8. The clean oil and gas field sewage advanced oxidation reaction device of claim 1, characterized in that: the ratio of the reflux quantity of the circulating pump to the water inflow of the water inlet is 30-200%.
9. A processing system, characterized by: the advanced oxidation reaction device for sewage in clean oil and gas fields of any one of claims 1 to 8, wherein the treatment system further comprises an oxidant supply device and a sewage source, the sewage source is connected with the water inlet of the tank body through a pipeline, and the oxidant supply device is connected with the dosing device.
10. The processing system of claim 9, wherein: the oxidant supply device comprises one or more of an ozone generation device, a plasma generation device and a hydrogen peroxide storage tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021768320.9U CN213357048U (en) | 2020-08-22 | 2020-08-22 | Clean type oil gas field sewage advanced oxidation reaction device and treatment system |
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| CN202021768320.9U CN213357048U (en) | 2020-08-22 | 2020-08-22 | Clean type oil gas field sewage advanced oxidation reaction device and treatment system |
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| CN213357048U true CN213357048U (en) | 2021-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116873407A (en) * | 2023-09-08 | 2023-10-13 | 山东玉兔食品股份有限公司 | Soy sauce transportation holding vessel with cleaning and sterilizing device |
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2020
- 2020-08-22 CN CN202021768320.9U patent/CN213357048U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116873407A (en) * | 2023-09-08 | 2023-10-13 | 山东玉兔食品股份有限公司 | Soy sauce transportation holding vessel with cleaning and sterilizing device |
| CN116873407B (en) * | 2023-09-08 | 2023-11-17 | 山东玉兔食品股份有限公司 | Soy sauce transportation holding vessel with cleaning and sterilizing device |
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