CN115365246A - Gas field water tank cleaning device and cleaning method - Google Patents
Gas field water tank cleaning device and cleaning method Download PDFInfo
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- CN115365246A CN115365246A CN202110551033.5A CN202110551033A CN115365246A CN 115365246 A CN115365246 A CN 115365246A CN 202110551033 A CN202110551033 A CN 202110551033A CN 115365246 A CN115365246 A CN 115365246A
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- 239000003672 gas field water Substances 0.000 title claims abstract description 106
- 238000004140 cleaning Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 187
- 238000003860 storage Methods 0.000 claims description 68
- 239000002699 waste material Substances 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 34
- 239000010865 sewage Substances 0.000 claims description 32
- 238000001914 filtration Methods 0.000 claims description 20
- 239000008213 purified water Substances 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 19
- 239000010802 sludge Substances 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 239000002912 waste gas Substances 0.000 claims description 15
- 239000000706 filtrate Substances 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 12
- 238000004062 sedimentation Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 239000012459 cleaning agent Substances 0.000 claims description 9
- 239000002244 precipitate Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 241000220317 Rosa Species 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000003657 drainage water Substances 0.000 claims description 2
- 238000009270 solid waste treatment Methods 0.000 abstract description 2
- 208000028659 discharge Diseases 0.000 description 21
- 230000008569 process Effects 0.000 description 14
- 230000007613 environmental effect Effects 0.000 description 8
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- 238000004519 manufacturing process Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000008394 flocculating agent Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000005862 Whey Substances 0.000 description 2
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- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
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- RUPBZQFQVRMKDG-UHFFFAOYSA-M Didecyldimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCC[N+](C)(C)CCCCCCCCCC RUPBZQFQVRMKDG-UHFFFAOYSA-M 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical compound OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
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- 239000008398 formation water Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000011175 product filtration Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
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- 239000002569 water oil cream Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a gas field water tank cleaning device and a cleaning method, and relates to the technical field of solid waste treatment.
Description
Technical Field
The invention relates to the technical field of solid waste treatment, in particular to a gas field water tank cleaning device and a cleaning method.
Background
The production process of oil and gas wells is often accompanied by the generation of impurities such as formation water, rock debris, condensate oil and the like, particularly, natural gas is required to be injected into gas wells in the production process to ensure safe production, so that the natural gas is easily mixed with various impurities in the gas production process, a separator is often arranged on the ground to separate impurities except gas, the separated gas field water and various dirt and impurities enter a gas field water tank, and analysis shows that the components of the dirt are three substances of oil, oil-water emulsion and solid impurities, and the dirt is periodically discharged and handed to an environmental protection company for treatment.
The following problems exist in the actual production process
(1) The oil gas well station is remote, gas field water and dirt in a gas field water tank are difficult to discharge in time, the gas field water and the dirt are often stored for a long time, and the dirt is easy to deposit in the tank.
(2) Because the gas field water tank is horizontal, the dead angle is more. Generally contain oil in filth and the impurity, viscosity is very big again, very easy deposit in the gas field water pitcher, and the storage time has been of a specified duration, and the filth can become hard, and the later stage washs the degree of difficulty very big, leads to in the gas field water pitcher filth deposit more and more, finally plugs up the outlet very probably, leads to the gas field water pitcher to lose the service function.
(3) Gas wells are generally located far away, water resources are precious, a large amount of water resources are consumed for hydraulic cleaning, a large amount of dirt is increased, the difficulty of later-stage enterprise treatment is high, and the environmental protection risk of enterprises is increased.
Therefore, how to solve the above problems is a great need.
Disclosure of Invention
In view of the above, in order to solve the above problems in the prior art, the present invention provides a gas field water tank cleaning device and a cleaning method thereof, which are used to solve the problem that the gas field water tank is not easy to clean, and at the same time, can save water resources and reduce environmental pollution.
In a first aspect, the present invention provides a gas field water tank cleaning device, comprising:
as the gas field water pitcher by the washing thing, the access hole has been seted up at the jar body top of gas field water pitcher, and its bottom is equipped with the drain, and it still includes jar body belt cleaning device, jar body belt cleaning device includes:
the treatment tank is connected with a sedimentation device and is connected with the sewage outlet;
the oil stain storage tank is connected with a combustion furnace and is connected with the treatment pool;
the sludge storage tank is connected with a first delivery pump and a second delivery pump, one end of the first delivery pump is connected with the treatment tank, and the other end of the first delivery pump is connected with the sludge storage tank;
the filter box is provided with an aggregate input port, a waste residue output port, a filtrate output port and a filter residue input port, the aggregate input port is connected with the second conveying pump, the waste residue output port is connected with the waste residue box, and the filter residue input port and the filtrate output port are connected with the multifunctional processing box;
the multifunctional treatment box is connected with a purified water storage device, the purified water storage device is connected with a water outlet pipe, and the water outlet pipe is connected into the access hole.
In the embodiment, after the waste gas and the gas field water in the gas field water tank are discharged, the gas field water tank is washed with certain strength through the water outlet pipe, a cleaning agent and a demulsifier are added to clean the tank, the sewage is guided into the treatment tank, a flocculant is added to stand, and then the sewage is treated through the sedimentation device to obtain an oil phase, a water phase and a sedimentation phase, the oil phase is discharged through the oil stain storage tank and is discharged after being treated through the combustion furnace, the water phase and the sedimentation phase enter the filter tank through the sludge storage tank under the action of the delivery pump to be filtered to obtain a small amount of waste residue, the waste residue is filtered again through the multifunctional treatment tank, the filter residue and the waste residue are guided into the waste residue tank through the filter tank to be treated by a professional company, the water filtered through the multifunctional treatment tank enters the purified water storage device to be treated to obtain product water, the product water can be used for cleaning the ground roads of the gas field water tank or the well station, the water resource realizes the cleaning of the water in the gas field water tank, the water tank and can be recycled, thereby saving the effect of cleaning the sewage and reducing the environmental risk of enterprises.
In one possible embodiment, the multifunctional treatment box is provided with a feeding hole, a liquid outlet and a discharging hole, the multifunctional treatment box comprises a stirring cavity and a filtering cavity, the feeding hole is arranged in the stirring cavity, and the liquid outlet and the discharging hole are arranged in the filtering cavity; the feed inlet is connected the filtrating delivery outlet, just be equipped with the third delivery pump between feed inlet and the filtrating delivery outlet, the bin outlet is connected the filter residue input port, the liquid outlet is connected water purification storage device.
In this embodiment, the water that the setting of stirring chamber and filter chamber will obtain in the multifunctional treatment incasement further filters, and the filter residue gets into the filter tank and circulates the clearance, obtains more filter residues and further reduces the turbidity of crossing water.
In one possible embodiment, the purified water storage device comprises: the dish that connects gradually strains, water storage tank and high-pressure water tank, liquid outlet output liquid extremely the dish is strained, high-pressure water tank's output is connected the outlet pipe.
In this embodiment, strain through the dish and clear up usable degree with the turbidity of water to store the water resource that filters through the reservoir case, through the water pressure that sets up the steerable outlet pipe of high pressure water tank, and then according to the washing dynamics size of the interior filth condition adjustment water of actual jar.
It will be appreciated that the outlet pipe may be connected to a high pressure water gun head for cleaning the tank.
In a possible embodiment, the sedimentation device comprises a dissolved air pump and a dosing tank, the dissolved air pump and the dosing tank are connected with the treatment tank, and a chemical reaction is carried out by adding a flocculating agent into the dissolved air pump and the dosing tank, so that the treatment efficiency of mixed dirt in the treatment tank is improved.
In one possible embodiment, the disc filter is also connected to the residue inlet.
In the embodiment, filter residues obtained by disc filtration can be further introduced into the filter box for treatment, so that pollutants are reduced.
In one possible embodiment, the gas field water tank cleaning device further comprises a mobile platform skid-mounted with the tank body cleaning device.
In this embodiment, in the actual production process, oil gas well station is remote, through can set up whole processing apparatus on a car, perhaps make sled dress, conveniently removes the processing.
In a possible embodiment, an air pump is skid-mounted on the movable platform and connected with the water outlet pipe.
In this embodiment, the air pump may be connected to the water outlet pipe for discharging the exhaust gas in the gas field water tank.
In a possible embodiment, when the gas field water tank is emptied of waste gas, the access hole is connected with the combustion furnace, part of harmful gas can exist in the gas field water tank, and after the harmful gas is combusted through the combustion furnace, pollution caused by direct discharge is reduced, and the environmental protection risk of enterprises is relieved.
In a second aspect, an embodiment of the present invention provides a gas field water tank cleaning method, which is applied to implement a gas field water tank cleaning apparatus as described in any one of the embodiments of the first aspect, including the steps of:
s10: opening the drain outlet to introduce the gas field water in the gas field water tank into the treatment pool, simultaneously injecting air into the gas water tank and opening the access hole to discharge waste gas in the gas field water tank;
s20: after the water and the waste gas in the gas field are emptied, closing the drain outlet, connecting the water outlet pipe into the access hole, adding a demulsifier and a cleaning agent, flushing the water tank of the gas field through the water outlet pipe, and then standing to obtain mixed dirt;
s30: opening the sewage outlet, allowing the mixed sewage to enter the treatment tank, and separating the mixed sewage into an oil phase, a water phase and a precipitation phase through a precipitation device;
s40: introducing the oil phase into the combustion furnace from the treatment tank through the oil stain storage tank, and carrying out incineration treatment on the oil phase;
s50: the water phase and the precipitate phase in the treatment tank are brought into the sludge storage tank through the first delivery pump, the water phase and the precipitate phase in the sludge storage tank are led into the filter tank through the second delivery pump and the aggregate input port, and the filter tank is used for filtering the precipitate phase to obtain waste residue and filtered water;
s60: the waste residues are guided into the waste residue box through the waste residue output port, the filtered water and the water phase are guided into the multifunctional treatment box through the filtrate output port, the multifunctional treatment box carries out filtration treatment on the filtered water and the water phase to obtain filter residues and primary filtered water, the filter residues are guided into the filter box through the filter residue input port, and the primary filtered water is guided into the purified water storage device;
s70: and the purified water storage device is utilized to treat the initial filtered water to obtain product water, and the product water is guided into the access hole through the water outlet pipe.
In a possible embodiment, the method further includes, in step S60:
s601: introducing the filtered water and the water phase into the stirring cavity through the third delivery pump and the feed inlet, and uniformly mixing the filtered water and the water phase to obtain mixed water;
s602: introducing the mixed water into the filter cavity for filtering to obtain the filter residue and the initial filtered water;
s603: through bin outlet and filter residue input port are leading-in rose box of filter residue, through the liquid outlet is leading-in with the initial drainage water storage device.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a gas field water tank cleaning device and a cleaning method, wherein a water outlet pipe is used for cleaning a gas field water tank in a cleaning stage, chemical agents are added to discharge gas field water and dirt in the gas field water tank, a dirt treatment recycling process is arranged, the gas field water tank is flushed with certain strength through the water outlet pipe, cleaning agents and demulsifiers are added to clean the tank, the dirt is led into a treatment tank, a flocculating agent is added to the treatment tank for standing, a sedimentation device is used for treating the dirt to obtain an oil phase, a water phase and a precipitated phase, the oil phase is discharged through an oil stain storage tank and is treated through a combustion furnace and then discharged, the water phase and the precipitated phase enter a filter tank for filtering under the action of a sludge storage tank under the action of a delivery pump, the product water is filtered again through a multifunctional treatment tank and then enters a purified water storage device for treating the product water, the product water can be used for cleaning ground roads of a gas field water tank or a well station, the cleaning of the gas field water tank or the ground road of the well station is realized, the cleaning water tank by water resource, the water tank, the water resource can be recycled, the surplus part can be recycled, the cleaning effect of cleaning the dirt can be realized, and the environmental protection risk of an enterprise is reduced.
2. According to the gas field water tank cleaning device and the cleaning method, the gas field water tank is cleaned through the water outlet pipe, so that gas field water and dirt in the gas field water tank are difficult to discharge in time, the problem that the gas field water tank loses the use function due to the fact that the dirt is stored for a long time, becomes hard and is easy to deposit in the tank and finally the water outlet is likely to be blocked is solved, and the whole treatment device can be arranged on a vehicle or made into a skid-mounted mode, so that the gas field water tank is convenient to move and treat.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of an overall structure of a gas field water tank cleaning device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a filter box according to an embodiment of the present invention;
FIG. 3 is a schematic view of a multifunctional processing box according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the overall structure of another gas field water tank cleaning device in the embodiment of the invention;
FIG. 5 is a schematic view of a connection of burners in an embodiment of the invention;
FIG. 6 is a flow chart of a method for cleaning a gas field water tank according to an embodiment of the present invention;
fig. 7 is a flow chart of another gas field water tank cleaning method in the embodiment of the invention.
Reference numerals and corresponding names:
1. a gas field water tank; 2. a sewage draining port; 20. a dissolved air pump; 21. a dosing box; 3. an access hole; 4. a treatment tank; 5. an oil stain storage box; 6. a combustion furnace; 7. a sludge storage tank; 8. a filter box; 81. a filter residue input port; 82. an aggregate input port; 83. a filtrate output port; 84. a waste residue outlet; 9. a first delivery pump; 91. a second delivery pump; 92. a third delivery pump; 10. disc filtering; 11. a waste residue tank; 12. a multifunctional processing box; 121. a feed inlet; 122. a discharge outlet; 123. a liquid outlet; 13. a filter chamber; 14. a stirring chamber; 15. a water storage tank; 16. a high pressure water tank; 17. a water outlet pipe; 18. a high-pressure water gun; 19. a mobile platform.
Detailed Description
The technical solutions in the embodiments of the present application will be described below in detail and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In view of the fact that most of the existing gas field water tanks are horizontal, and dead corners are more. Gas field water and filth in the gas field water pitcher are difficult in time to discharge, often can store longer time, the filth is very easy to deposit in the jar, generally oiliness in filth and the impurity, viscosity is very big again, very easy deposit is in the gas field water pitcher, the storage time is of a specified duration, the filth can become hard, the later stage is washd the degree of difficulty very big, lead to in the gas field water pitcher dirt deposit more and more, block up the outlet at last very likely, lead to the gas field water pitcher to lose service function, consequently, need in time handle the gas field water pitcher.
However, in the actual production process, the oil and gas well station is remote, and a more convenient treatment method is needed to solve the problem.
In addition, gas wells are generally far away, water resources are precious, and a large amount of water resources are consumed for hydraulic cleaning, so that higher requirements are provided for reasonable use of the water resources, a large amount of sewage is discharged, the difficulty in later-stage enterprise treatment is high, the environmental protection risk of enterprises is increased, and the sewage is required to be considered for recycling and treating.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Examples
Referring to fig. 1, fig. 1 is a schematic diagram of an overall structure of a gas field water tank 1 cleaning device according to an embodiment of the present invention, which includes:
a gas field water tank 1 which needs to be cleaned, wherein the top of the tank body of the gas field water tank 1 is provided with an access hole 3, the bottom of the tank body is provided with a sewage discharge outlet 2, the gas field water tank also comprises a tank body cleaning device, the tank body cleaning device comprises a treatment pool 4, an oil stain storage tank 5, a sludge storage tank 7, a filter tank 8, a multifunctional treatment tank 12, a purified water storage device, a water outlet pipe 17 and other equipment,
the concrete connection is as follows: the treatment tank 4 is connected with a sedimentation device, and the treatment tank 4 is connected with the sewage outlet 2; the oil stain storage box 5 is connected with a combustion furnace 6, and the oil stain storage box 5 is connected with a treatment pool 4; the sludge storage tank 7 is connected with a first delivery pump 9 and a second delivery pump 91, one end of the first delivery pump 9 is connected with the treatment tank 4, and the other end is connected with the sludge storage tank 7; the filter box 8 (for industrial product filtration) is provided with an aggregate input port 82, a waste residue output port 84, a filtrate output port 83 and a filter residue input port 81, the aggregate input port 82 is connected with the second conveying pump 91, the waste residue output port 84 is connected with the waste residue box 11, and the filter residue input port 81 and the filtrate output port 83 are connected with the multifunctional treatment box 12; the multifunctional treatment box 12 is connected with a purified water storage device, the purified water storage device is connected with a water outlet pipe 17, and the water outlet pipe 17 is connected with the access hole 3.
The device specifically comprises a cleaning process of the gas field water tank 1 and a dirt treatment process generated after the cleaning process is finished.
Referring to fig. 2 and fig. 6, fig. 6 is a flowchart of a method for cleaning a gas field water tank 1 according to an embodiment of the present invention, the cleaning process mainly includes steps S10-S20, S10: opening a sewage discharge outlet 2 to introduce the gas field water in the gas field water tank 1 into a treatment pool 4, simultaneously injecting air into the gas water tank and opening a maintenance port 3 to discharge waste gas in the gas field water tank 1; s20: after the gas field water and the waste gas are emptied, the sewage outlet 2 is closed, the water outlet pipe 17 is connected with the access hole 3, the demulsifier and the cleaning agent are added, the gas field water tank 1 is washed through the water outlet pipe 17, and then the mixed sewage is obtained through standing treatment.
In the process, the cleaning of the gas field water tank 1 is divided into three processes of hydraulic cleaning, demulsification cleaning and cleaning agent cleaning, and the cleaning process specifically comprises the following steps: firstly, opening a drain outlet 2 arranged at the bottom to empty the gas field water in the gas field water tank 1 as much as possible, simultaneously opening a top access hole 3, then introducing air from a valve port on the top of the gas field water tank 1 to discharge waste gas in the gas field water tank 1, and after the waste gas is exhausted, closing the drain outlet 2 at the bottom. Connect outlet pipe 17 into access hole 3, concrete accessible is gone on with outlet pipe 17 connection high pressure squirt 18, carries out water conservancy through adjusting high pressure squirt 18 and washs, washes gas field water pitcher 1 and washs the inner wall, according to on-the-spot particular case, washes for a moment, stews, then can discharge, also can not discharge. When further treatment is needed, a high-efficiency demulsifier is added into the tank for demulsification and cleaning (such as ethylene glycol monobutyl ether, didecyl dimethyl ammonium chloride, allyl alcohol, polyoxyethylene, polyoxypropylene ether and other mixtures), the mixture is continuously washed by a high-pressure water gun 18 and kept stand for a moment, most of emulsion in sediments attached to the inner wall is demulsified and separated into an oil phase and a water phase, and then mixed dirt is discharged. When the whey is broken and washed and needs further treatment, the whey can be washed by a cleaning agent through the high-pressure water gun 18, the gas field water tank 1 is continuously washed by adding a high-efficiency cleaning agent (such as a mixture of citric acid, sulfosuccinic acid, dioctyl sodium salt, sodium benzoate, a corrosion inhibitor and the like), then the sewage is discharged, and the washing steps can be repeated until the gas field water tank 1 is cleaned.
After the cleaning process is finished, entering a sewage treatment and recycling process, such as steps S30-S70, S30: opening a sewage outlet 2, enabling the mixed sewage to enter a treatment tank 4, and separating the mixed sewage into an oil phase, a water phase and a precipitation phase through a precipitation device; s40: introducing the oil phase from the treatment tank 4 into a combustion furnace 6 through an oil stain storage tank 5, and carrying out incineration treatment on the oil phase; s50: the water phase and the precipitate phase in the treatment tank 4 are brought into the sludge storage tank 7 through the first delivery pump 9, the water phase and the precipitate phase in the sludge storage tank 7 are led into the filter tank 8 through the second delivery pump 91 and the aggregate input port 82, and the filter tank 8 performs filtration treatment on the precipitate phase to obtain waste residue and filtered water; s60: introducing the waste residues into the waste residue tank 11 through a waste residue outlet 84, introducing filtered water and a water phase into the multifunctional treatment tank 12 through a filtrate outlet 83, filtering the filtered water and the water phase by the multifunctional treatment tank 12 to obtain filter residues and primary filtered water, introducing the filter residues into the filter tank 8 through a filter residue inlet 81, and introducing the primary filtered water into a purified water storage device; s70: the product water is obtained by treating the initial filtered water by using a purified water storage device and is guided into the access hole 3 through a water outlet pipe 17.
In the process, after demulsification and cleaning, discharged dirt enters an air floatation treatment process through a sedimentation device, oil substances discharged by air floatation of a flocculating agent (such as polyaluminium chloride, polyacrylamide, ferric trichloride and the like) enter a combustion furnace 6 for treatment, the oil substances are changed into waste gas to be discharged, solid particles and sludge discharged from the bottom enter a storage box and then are filtered through a filter box 8, and a small amount of waste residues are obtained and are handed to professional companies for treatment. After the water obtained by treatment enters the multifunctional treatment tank 12 and the purified water storage device again for treatment, the turbidity of the treated water can be below 10NTU generally, the treated water can be used for cleaning the gas field water tank 1 and cleaning the ground road of a well station, and the redundant part can be reinjected for treatment.
The outlet of the combustion furnace 6 is provided with a waste gas absorber for absorbing harmful gases in the waste gas, and finally, the harmless treatment of the dirty oil is realized.
In the whole device, in order to realize multi-filtration to discharge more waste residues and obtain the utilization of circulating water, the multifunctional treatment box 12 and the filter box 8 are provided with a circulating connection relationship, specifically, the multifunctional treatment box 12 is provided with a feed inlet 121, a liquid outlet 123 and a discharge outlet 122, the multifunctional treatment box 12 comprises a stirring cavity 14 and a filter cavity 13, the feed inlet 121 is arranged in the stirring cavity 14, and the liquid outlet 123 and the discharge outlet 122 are arranged in the filter cavity 13; the feed inlet 121 is connected with the filtrate output port 83, a third conveying pump 92 is arranged between the feed inlet 121 and the filtrate output port 83, the discharge port 122 is connected with the residue input port 81, and the liquid outlet 123 is connected with the purified water storage device.
Referring to fig. 3 and 7, fig. 7 is a flowchart of another method for cleaning a gas field water tank 1 according to an embodiment of the present invention, which includes the following steps: s601: introducing the filtered water and the water phase into the stirring chamber 14 through the third delivery pump 92 and the feed inlet 121, and uniformly mixing the filtered water and the water phase to obtain mixed water; s602: introducing the mixed water into a filter chamber 13 for filtering to obtain filter residue and primary filtered water; s603: leading-in rose box 8 of filter residue (industry product calls the board frame and filters) through bin outlet 122 and filter residue input port 81, will the leading-in water purification storage device of initial drainage through liquid outlet 123, it has realized the loop filter and the processing of waste residue to gas field water.
Referring to fig. 4, in order to further process the primarily treated gas field water, the device is further optimized, and the purified water storage device comprises: 10, water storage tank 15 and high pressure water tank 16 are strained to the dish that connects gradually, and 10 is strained to the dish to liquid outlet 123 output liquid, and outlet pipe 17 is connected to high pressure water tank 16's output, and 10 is strained to the dish and clears up the turbidity of water usable degree, and the usable water storage of water storage tank 15 storage sets up high pressure water tank 16 and can pressurize the water storage, is convenient for adjust the pressure of washing and with the interior sanitization of savings tank.
In order to further optimize and improve the treatment efficiency of the mixed sewage in the treatment tank 4, as shown in fig. 1, the settling device specifically includes a dissolved air pump 20 and a dosing tank 21, the dissolved air pump 20 and the dosing tank 21 are connected to the treatment tank 4, and specifically, the dissolved air pump 20 and the dosing tank 21 are used to perform a chemical reaction by adding a flocculant to accelerate the stratification of the gas field water.
It will be appreciated that flushing of the tank may be achieved by adding a high efficiency demulsifier and a high efficiency detergent to the high pressure tank 16.
To further optimize the slag, referring to fig. 4, the pan filter 10 also leaves a certain amount of waste material after filtration, and contaminants are reduced by directing the waste material of the pan filter 10 into the filter box 8 through the residue inlet 81.
In view of the above background, the gas well is generally located far away, referring to fig. 1, the gas field water tank 1 cleaning device further includes a mobile platform 19, and the mobile platform 19 is skid-mounted with the tank cleaning device to be conveniently moved to a position to be treated.
Referring to fig. 1, in the above cleaning scheme, the gas in the gas field water tank 1 needs to be subjected to exhaust gas discharge treatment, which can be realized by skid-mounting a gas pump on the mobile platform 19 and connecting the gas pump to the water outlet pipe 17, and the water outlet pipe 17 injects the gas.
In view of the environmental protection risk of enterprises, please refer to fig. 5, when the gas field water tank 1 is emptied of exhaust gas, the access hole 3 is connected to the combustion furnace 6, and part of harmful gas can exist in the gas field water tank 1, and after the harmful gas is combusted by the combustion furnace 6, the pollution caused by direct discharge is reduced and the environmental protection risk of enterprises is reduced.
The specific implementation process comprises the following steps: firstly, emptying the gas field water of the gas field water tank 1 as much as possible, replacing a large amount of gas with air, discharging toxic and harmful gas of the gas field water tank 1, and then closing the sewage discharge outlet 2. And (3) flushing for 30min by using a high-pressure water gun 18 through the access hole 3, removing deposited dirt on the surface part, and then discharging. And then adding a high-efficiency demulsifier with the concentration of about 500ppm, continuously cleaning for 30min by a high-pressure water gun 18, standing for 1 h, and discharging mixed dirt after the mixture is fully reacted. The mixed sewage enters a treatment tank 4 for air floatation treatment, a flocculating agent is matched, the mixture can be divided into an oil phase and a water phase, the oil is scraped out from the top and enters an oil stain storage tank 5, then the oil enters a combustion furnace 6, a waste gas absorber is arranged at the outlet of the combustion furnace 6, harmful gas in the waste gas is absorbed, and finally, the harmless treatment of the sewage oil is realized. The air supporting machine bottom exhaust mud gets into sludge storage box 7, then gets into 8 filtration processes of rose box, and a small amount of waste residues of sheet frame discharge are handed over by professional company and are handled, and the sewage that obtains gets into multifunctional processing case 12, through coagulating sedimentation treatment, once more removes the particulate matter in the sewage, and the periodic discharge mud of multifunctional processing case 12 bottom gets into rose box 8 and handles. The resulting treated water enters a disc filter 10 for further treatment of solid particulates to produce a treated product water having a turbidity of typically less than 10 NTU. The treated water can be used for cleaning the gas field water tank 1 and cleaning the ground road of the well station, and the redundant part can be reinjected for treatment. After demulsification cleaning is finished, if partial sediments exist, adding a high-efficiency cleaning agent into the high-pressure water tank 16 in a gathering manner according to the actual conditions of the tank body, continuously cleaning for 30min by using a high-pressure water gun 18, standing for 2 hours, and continuously treating the obtained mixture as shown above. Finally, the clean gas field water tank 1 is obtained, the reduction and harmless treatment of cleaning pollutants are realized, the reduction is more than 90%, and only a small amount of waste residues are obtained. The whole treatment device is arranged on a vehicle or made into a skid-mounted device, so that the mobile treatment is convenient, the treatment device can be moved to the next well station for treatment, and no dirt is left.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a gas field water pitcher belt cleaning device, includes as gas field water pitcher (1) by the washing thing, access hole (3) have been seted up at the jar body top of gas field water pitcher (1), and its bottom is equipped with drain (2), its characterized in that, still includes jar body belt cleaning device, jar body belt cleaning device includes:
the treatment tank (4) is connected with a sedimentation device, and the treatment tank (4) is connected with the sewage outlet (2);
the oil stain storage tank (5) is connected with a combustion furnace (6), and the oil stain storage tank (5) is connected with the treatment pool (4);
the sludge storage tank (7) is connected with a first delivery pump (9) and a second delivery pump (91), one end of the first delivery pump (9) is connected with the treatment tank (4), and the other end of the first delivery pump is connected with the sludge storage tank (7);
the filter tank (8) is provided with an aggregate input port (82), a waste residue output port (84), a filtrate output port (83) and a filter residue input port (81), the aggregate input port (82) is connected with the second conveying pump (91), the waste residue output port (84) is connected with the waste residue tank (11), and the filter residue input port (81) and the filtrate output port (83) are connected with the multifunctional processing tank (12);
the multifunctional treatment box (12) is connected with a purified water storage device, the purified water storage device is connected with a water outlet pipe (17), and the water outlet pipe (17) is connected into the access hole (3).
2. The gas field water tank cleaning device according to claim 1, wherein the multifunctional treatment tank (12) is provided with a feed inlet (121), a liquid outlet (123) and a discharge outlet (122), the multifunctional treatment tank (12) comprises a stirring chamber (14) and a filtering chamber (13), the feed inlet (121) is provided in the stirring chamber (14), and the liquid outlet (123) and the discharge outlet (122) are provided in the filtering chamber (13); feed inlet (121) are connected filtrating delivery outlet (83), just be equipped with third delivery pump (92) between feed inlet (121) and filtrating delivery outlet (83), bin outlet (122) are connected filter residue input port (81), liquid outlet (123) are connected water purification storage device.
3. The gas field water tank cleaning device according to claim 2, wherein the clean water storage device comprises: disc that connects gradually strains (10), water storage and storage case (15) and high pressure water tank (16), liquid outlet (123) output liquid extremely the disc strains (10), the output of high pressure water tank (16) is connected outlet pipe (17).
4. A gas field water tank cleaning device according to claim 2, characterized in that the sedimentation device comprises a dissolved air pump (20) and a dosing tank (21), and the dissolved air pump (20) and the dosing tank (21) are connected with the treatment tank (4).
5. A gas field pitcher cleaning device according to claim 3, wherein the disc filter (10) is further connected to the residue inlet (81).
6. A gas field water tank cleaning device according to claim 1, characterized in that the gas field water tank (1) cleaning device further comprises a mobile platform (19), said mobile platform (19) being skid mounted with said tank cleaning device.
7. The gas field water tank cleaning device according to claim 6, wherein an air pump is skid-mounted on the movable platform (19), and the air pump is connected with the water outlet pipe (17).
8. A gas field water tank cleaning device according to claim 1, characterized in that the service opening (3) is connected to the burner (6) when the gas field water tank (1) is emptied of exhaust gases.
9. A cleaning method using the gas field water tank cleaning device according to any one of claims 1 to 8, comprising the steps of:
opening the sewage outlet (2) to introduce the gas field water in the gas field water tank (1) into the treatment pool (4), simultaneously injecting air into the gas water tank and opening the access hole (3) to discharge waste gas in the gas field water tank (1);
after the water and the waste gas in the gas field are emptied, closing the sewage outlet (2), connecting the water outlet pipe (17) into the access hole (3), adding a demulsifier and a cleaning agent, washing the water tank (1) in the gas field through the water outlet pipe (17), and then standing to obtain mixed dirt;
opening the sewage outlet (2), enabling the mixed sewage to enter the treatment pool (4), and separating the mixed sewage into an oil phase, a water phase and a precipitation phase through a precipitation device;
introducing an oil phase from the treatment tank (4) into the combustion furnace (6) through the oil storage tank (5);
the water phase and the precipitate phase in the treatment tank (4) are brought into the sludge storage tank (7) through the first conveying pump (9), the water phase and the precipitate phase in the sludge storage tank (7) are led into the filter tank (8) through the second conveying pump (91) and the aggregate input port (82), and the filter tank (8) is used for filtering the precipitate phase to obtain waste residue and filtered water;
the waste residues are led into the waste residue box (11) through the waste residue outlet (84), the filtered water and the water phase are led into the multifunctional treatment box (12) through the filtrate outlet (83), the multifunctional treatment box (12) carries out filtration treatment on the filtered water and the water phase to obtain filter residues and primary filtered water, the filter residues are led into the filter box (8) through the filter residue inlet (81), and the primary filtered water is led into the purified water storage device;
and the purified water storage device is used for treating the initial filtered water to obtain product water, and the product water is guided into the access hole (3) through the water outlet pipe (17).
10. A method for cleaning a gas field water tank cleaning device according to claim 9, wherein the waste residue is introduced into the waste residue tank (11) through the waste residue outlet (84), the filtered water and the water phase are introduced into the multifunctional treatment tank (12) through the filtrate outlet (83), the multifunctional treatment tank (12) performs a filtering treatment on the filtered water and the water phase to obtain a filter residue and an initial filtered water, the filter residue is introduced into the filter tank (8) through the filter residue inlet (81), and the initial filtered water is introduced into the purified water storage device, comprising the steps of:
introducing the filtered water and the water phase into the stirring chamber (14) through the third delivery pump (92) and the feed inlet (121), and uniformly mixing the filtered water and the water phase to obtain mixed water;
introducing the mixed water into the filter chamber (13) for filtering to obtain the filter residue and the initial filter water;
through bin outlet (122) and filter residue input port (81) are with the leading-in rose box (8) of filter residue, through liquid outlet (123) are leading-in with the initial drainage water purification storage device.
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| CN202110551033.5A CN115365246A (en) | 2021-05-20 | 2021-05-20 | Gas field water tank cleaning device and cleaning method |
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