CN207726911U - A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment - Google Patents

A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment Download PDF

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Publication number
CN207726911U
CN207726911U CN201721834862.XU CN201721834862U CN207726911U CN 207726911 U CN207726911 U CN 207726911U CN 201721834862 U CN201721834862 U CN 201721834862U CN 207726911 U CN207726911 U CN 207726911U
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China
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evaporator
cycle
tubulation
water
shale gas
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翟俊
杨忠平
肖海文
李锋超
陈忠礼
姚婧梅
李伟
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Chongqing University
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Chongqing University
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Abstract

A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment, including successively by the coagulation filling of pipeline connection, Fenton retort, filter press, sedimentation basin, sandfiltration pot, cycle tubulation atmospheric evaporator, steam boiler, water softening plant and softening water tank;Further include filling the sodium carbonate that is connected and PAC chemicals dosing plants with coagulation, the hydrogen peroxide that is connected with Fenton retort and ferric sulfate and sulfuric acid chemicals dosing plant, the sodium hydroxide chemicals dosing plant being connected with static mixer, static mixer, suction pump and respective valves being set on pipeline.The each process section of the utility model is all linked with one another, and technique is complete, extensive to the applicability of water inlet.Flow is simple, energy-efficient simultaneously, and operating cost is low, and system structure is compact, and the wastewater flow rate of outward transport processing can be greatly reduced.

Description

A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment
Technical field
The utility model is related to industrial wastewater pollution process fields, the more particularly to minimizing of shale gas exploitation fracturing fluid Treatment process.
Background technology
Shale gas exploitation fracturing fluid is that " special work (work) industry is useless for one kind for being generated during shale gas exploitation Water ".The fracturing waste liquor that China's shale gas exploitation is discharged every year is up to 1,000,000 tons or so.It is counted with closing, every mouthful of shale gas production Well fracturing fluid about 30~50m3/d.Its component is sufficiently complex, mainly contains that oils, various guanidine glue, formaldehyde etc. are a variety of to be had The many kinds of substance such as all kinds of chemical treatments such as machine additive, sulfate, bacterium.Therefore the fracturing fluid of shale gas has height COD value, high salinity, high stability, high viscosity, penetrating odor are strong, it is difficult to degrade the features such as, to the very harmful of environment.This After a little substances enter environment, after underground water and surface water environment, it will water supply, native environmental system bring persistence Pollution, production and long term growth to shale gas cause immeasurable loss.Therefore, fracturing fluid is treated as Restrict one of the critical environments problem in shale gas development process.
However, being limited by field condition and technical merit, the treatment technology of China's shale gas fracturing waste liquor is still immature, very To some it is unprocessed just directly by waste liquid re-injection or be discharged into environment, this is further exacerbated at shale gas fracturing waste liquor The urgency of reason.Currently, common fracturing waste liquor treatment process mainly has " Fenton oxidation-flocculation-SBR Combined Treatments ", " wadding Solidifying-oil removal-photochemical catalytic oxidation ", " Fenton oxidation-flocculation reinjection technology ", " flocculation-oil removal-precipitation-twin-stage oxygen Change ", " de- steady-filtering-O of chemistry3/H2O2Composite catalytic oxidation-deep oxidation " etc..Said combination technique, may be implemented The mutual supplement with each other's advantages of single technology, improve treatment effect, reduce consumption of chemical agent, reduce cost etc..But these techniques concentrate on Processing for suspended material in waste water and organic matter is not obvious the treatment effect of salt in waste water.Again due to shale gas Salt content is very high in fracturing waste liquor, therefore, difficult for be treated as the processing of shale gas fracturing waste liquor one of salt in waste liquid Topic.And these treatment process rest on the experimental study stage mostly, and Practical Project is with less, even if a small number of applications, processing Reinjected water is transported outward afterwards or discharge water is still larger, causes outward transport, re-injection cost high.
With domestic increasingly serious environmental problem, generated fracturing waste liquor during shale gas exploitation is carried out high Effect, inexpensive decrement treatment become the active demand of its development.
Invention content
The purpose of this utility model is that for the big problem of existing shale gas exploitation fracturing fluid treating capacity, provide A kind of efficient, easy to operate, easy to remove, shale gas exploitation fracturing fluid that processing cost is low cycle tubulation evaporation subtracts Quantification treatment equipment has the characteristics that complicated component, variability and dispersibility, emphasis are realized useless for fracturing fluid itself Liquid minimizing, to solve the problems, such as China's shale gas exploitation industry fracturing fluid processing.
The technical solution adopted in the utility model is as follows:
A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment, including connected successively by pipeline Logical coagulation filling, Fenton retort, filter press, sedimentation basin, sandfiltration pot, cycle tubulation atmospheric evaporator, steam boiler, water are soft Change equipment and softening water tank;Further include filling the sodium carbonate being connected and PAC chemicals dosing plants with coagulation, being connected with Fenton retort Hydrogen peroxide and ferric sulfate and sulfuric acid chemicals dosing plant, the sodium hydroxide chemicals dosing plant being connected with static mixer, static mixer, Suction pump and respective valves are set on pipeline.
Equipment uses the cycle tubulation atmospheric evaporator of special construction, is square or round tower structure, evaporator Tower in setting wind turbine, water collection device, water distributor, cycle tube still heater, packing area and cycle header tank, be arranged outside tower and draw water Pump.
Wind turbine is axial-flow type high-power blower, is located at evaporator top exit, wind turbine model and power are by required evaporation Air quantity determines, but the power of wind turbine must assure that evaporator outlet wind speed reaches 12-20m/s.
Water distributor is located at evaporator top, is made of with water conduit tube and branch pipe and nozzle what is arranged in dendroid, nozzle is adopted With big flow atomizer, moisturizing pipe diameter and nozzle specification are selected according to design water, and nozzle quantity and arrangement are by cloth Water flow and single-nozzle spray flow determine.
Water collection device is mounted between water distributor and wind turbine, is corrosion-resistant material, is made as waveform.
It recycles in the packing area that tube still heater is mounted in the middle part of evaporator, using band fin anti-corrosion and high temperature resistant, high pressure Stainless steel or copper tube make, and use shape for disc or U-typed coil arrangement, it is ensured that and the fluid of big flow suppresses cycle, Tube still heater and tower external heat source unicom are recycled, the length and the number of plies for recycling tubulation are calculated by required heat exchange amount.
The filler of packing area is made of heat safe anti-corrosion material, honeycomb structure, is filled in cycle tubulation heating Between device coil pipe, cycle tube still heater is surrounded.
Air inlet is arranged in evaporator lower part, and bottom sets cycle header tank.
It is encapsulated using anti-corrosion material outside above structure, forms cycle tubulation atmospheric evaporator unit casing.
The characteristics of the utility model, is as follows:
1, the utility model is used as cycle tubulation using chemical coagulation-Fenton deep oxidations-physics press filtration combination technique It is concentrated by evaporation pre-treatment step.It is discharged after coagulation pretreatment and is directly carried out after filter press press filtration at follow-up Fenton deep oxidations Reason.Water outlet after deep oxidation is recirculated back to belt filter press press filtration after precipitation.This technological process is simple, passes through chemical coagulation The processing of+Fenton deep oxidations can effectively remove most of organic pollutant and suspended solid in waste water, through press filtration It realizes and is separated by solid-liquid separation, the evaporation efficiency of waste water can be effectively improved, prevent fouling of evaporator.
2, the utility model especially use containing cycle column tube evaporimeter atmospheric evaporator as evaporation concentration equipment, it is right Waste water carries out low-temperature evaporation concentration after materializing strategy, and the outer freight volume of waste water is greatly reduced, can effectively reduce processing cost.This practicality The evaporator or cooling tower that novel atmospheric evaporator and the prior art are often used are structurally different, also there is essence in principle Difference.Common evaporator or cooling tower are entered in tower by the air of low break value, are carried out with the higher processing flow of temperature After heat exchange, the hot wind of high break value is extracted out from top, achievees the purpose that cooling processing water water temperature;And the air of the utility model steams Hair device is entered in tower under high-power shaft flow fan effect by the air of dry higher enthalpy value, and gas is in tower by heat Waste water is passed to, the partial heat needed for waste water evaporation is provided, the air of low enthalpy value high humility is extracted out by wind turbine later, with this The evaporation capacity for improving recycling waste water, achievees the purpose that concentration.Recycling tubulation atmospheric evaporator can be substantially compared with conventional evaporator Reduce heating energy consumption.Compared with carrying out subsequent processing with bioanalysis, for treatment facility is smaller, treatment process is simple the advantages of this method Single, operating cost reduces, wider to the influent quality scope of application.When with Biochemical method, the waste liquid of high salinity may be right The growth of microorganism has inhibiting effect, influences treatment effect, and evaporation and concentration rule is used to be avoided that this problem.And it is evaporated On the one hand waste water can be carried out minimizing by processing, effectively reduce processing cost, and the outer freight volume of waste water is greatly reduced;On the other hand, Shale gas fracturing waste liquor is concentrated, it, can be effective by the metallic salt recycling in waste liquid when being conducive to subsequently transport outward processing Solve the problems, such as that salt content is higher in shale gas fracturing waste liquor, by the metallic salt recycling in waste liquid.
This atmospheric evaporator has several apparent structure innovations, concrete analysis as follows:
(1) this evaporator has to use high-power blower, i.e., to ensure that evaporator outlet wind speed reaches 12-20m/s, this It is because this evaporator purpose to be achieved is:The required energy of waste water evaporation is not all of to be provided by heating tubulation, but Design heating tubulation only provides part evaporation institute calorific requirement, and another part is higher by a large amount of enthalpies that high-power blower is pumped into Air provides.I.e. in atmospheric evaporator, a required heat part for waste liquid evaporation is conducted heat by air to be provided, and a part is by following The heating of circular row pipe provides.Since liquid evaporation speed is related with liquid surface air velocity, the flowing velocity of moisture film liquid level air It is bigger, be more conducive to accelerate evaporation rate, therefore by high-power blower, the advantage high using its wind speed, gas flux is big adds Keen draft is logical, improves the flowing velocity of water surface air, the water vapour molecule of effusion is made to spread rapidly, maintains evaporation and diffusion power For constant, do not make its reduction, gas flow and gas flow rate in evaporator can be improved, to improve evaporation efficiency, can save in this way Heating energy consumption is saved, the energy consumption that total energy consumption is heated offer waste water evaporation institute calorific requirement by heating tubulation more entirely is greatly reduced, this essence It is the innovation in this evaporator principle.
(2) in order to improve the enthalpy for the air that high-power blower is pumped into, the air inlet of evaporator can first pass through evaporator side Be arranged into air duct, into air duct in be provided with air dry combustion method pipe, to enter evaporator in air heat, further increase The enthalpy of air and air inlet is made to keep drying, is improved to be conducive to evaporation efficiency inside evaporator.
(3) the cycle tubulation of this evaporator is arranged in packing area, rather than arranged apart, when waste water is drenched into packing area A longer residence time can be obtained, this time can be utilized by circulating-heating tubulation simultaneously, when lengthening the heating to waste water Between, while packing area surface area is big, heat transfer area increases after waste water forms moisture film, can improve the efficiency of heating surface.
(4) this evaporator does not carry out additional heating first and is steamed to improve to the waste water by water circulating pump promotion circulated sprinkling Efficiency is sent out, is because if waste water is first heated, waste water temperature can be more much higher than air themperature, and the heat of water can pass to temperature Lower air causes thermal loss, and waste water evaporation process is an endothermic process, and such case appearance can be unfavorable for waste water Evaporation, this evaporator waste water cycle be use circulating pump Natural Circulation, while by steam heating tubulation be put into packing area, The temperature difference between air and waste water will not be caused, to reduce unnecessary heat loss.It is carried in addition, atmospheric evaporator is provided with Air dry combustion method pipe into air duct, the air for entering evaporator can be heated one step ahead, improve the enthalpy into evaporator air Value, the air of entrance, which transfers heat to waste water, can be more advantageous to waste water evaporation endothermic.
(5) filler of honeycomb structure and high-temperature resistant anti-corrosive material is used in this atmospheric evaporator, service life is long, bee Nest shape structured packing large specific surface area, the contact area that on the one hand can be effectively increased between waste water and air make hydrone escape machine It can increase, on the other hand, increase heat exchange area, accelerate evaporation rate.
3, continuum micromeehanics are used in the utility model operation, is controlled by valve, realize waste water in coagulating basin, Fenton oxygen Continuous operation state between change pond, filter press, sandfiltration pot and evaporator, the retardance for avoiding intermittent duty from bringing improve operation Efficiency;
4, the utility model device is simple, and flow is short, easy to maintain, is built without construction on site reaction tank and other structures Object;Service life is long;Automation control may be implemented in whole set process flow, greatly reduces personnel depaly;
The utility model is a kind of to handle shale air pressure using chemical coagulation-physics press filtration-high-efficiency evaporating concentration technique The physical chemistry combined system for splitting backflow waste liquid can effectively solve China's shale gas using this system in economic and technical and open The problem that fracturing outlet liquid is handled during adopting.
Description of the drawings
Fig. 1 is the shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment signal of the utility model Figure.
Fig. 2 is a kind of structural schematic diagram of the cycle tubulation atmospheric evaporator of concrete structure of the utility model.
Fig. 3 is the structural schematic diagram of the cycle tubulation atmospheric evaporator of the utility model another kind concrete structure.
In figure, 1-coagulation fills;2-Fenton retort;3-filter presses;4-sedimentation basins;5-sandfiltration pots;6-hydrogen-oxygens Change sodium chemicals dosing plant;7-sodium carbonate and PAC chemicals dosing plants;8-hydrogen peroxide, ferric sulfate and sulfuric acid chemicals dosing plant;9-cycle row Pipe atmospheric evaporator;10-static mixers;11-suction pumps;901-axial flow blowers;902-shells;903-water collection devices; 904-water distributors;905-nozzles;906-cycle tubular heat exchangers;907-fillers;908-air-inlet grilles;909-flows Meter;910-water circulating pumps;911-make-up cooling water casees;912-automatic water replenishing devices;913-discharge outlet;914-pedestals;915— Pressure gauge;916-observation windows;917-air inlet tube stents;918-into air duct;919-air dry combustion method pipes.
Specific implementation mode
The utility model is described further below in conjunction with attached drawing
Refering to attached drawing 1, the utility model proposes the cycle tubulation evaporation minimizing of shale gas exploitation fracturing fluid at Reason equipment includes filling 1, Fenton retort 2, filter press 3, sedimentation basin 4, sandfiltration pot 5, cycle by the coagulation that pipeline is connected to successively Column tube evaporimeter 9, the sodium carbonate being connected with coagulation filling and PAC chemicals dosing plants 7, hydrogen peroxide, the sulphur being connected with Fenton retort Sodium hydroxide chemicals dosing plant 6, static mixer 10, the suction pump that sour iron and sulfuric acid chemicals dosing plant 8 and static mixer are connected 11, respective valves are set on pipeline.
Referring to Fig. 2, the shell 902 of cycle tubulation atmospheric evaporator 9 is square-column-shaped tower structure, and axial flow blower is arranged in tower 901, pumping is arranged outside in water collection device 903, water distributor 904, cycle tube still heater 906, packed bed 907 and cycle header tank 911, tower Water pump 910.
Wherein, axial flow blower 901 is located at the top of evaporator, is axial-flow type high-power blower, and power of fan needs to ensure to steam Hair device air outlet velocity reaches 12-20m/s.
Water distributor 904 is located at evaporator top, is made of with water conduit tube and branch pipe and nozzle what is arranged in dendroid, nozzle Using big flow atomizer, moisturizing pipe diameter and nozzle specification are selected according to design water, nozzle quantity and arrangement by Cloth water flow and single-nozzle spray flow determine.
Water collection device 903 is mounted between water distributor 904 and axial flow blower 901, is corrosion-resistant material, is made as waveform.
Recycle tube still heater 906 be mounted on evaporator in the middle part of, using band fin anti-corrosion and high temperature resistant, high pressure stainless steel or Copper tube makes, and shape is U-typed coil arrangement, and the length and the number of plies for recycling tubulation are calculated by required heat exchange amount, it is ensured that The fluid of big flow suppresses cycle, and cycle tube still heater comes from steam with 10 unicom of heat source stream boiler outside tower, heat source Boiler.
Packed bed 907 is made of heat safe anti-corrosion material, honeycomb structure, is filled in cycle tube still heater Between coil pipe.Evaporation packed bed has wider passages, and crystallization condition is not achieved in entire evaporation process, and packed bed will not be caused stifled Plug is readily disassembled, rinses and daily maintenance.
Portion is arranged the setting of air-inlet grille 908 under the vaporizers, and cycle header tank 911 is located at base of evaporator.
The above structural outer is encapsulated using anti-corrosion material, forms cycle tubulation atmospheric evaporator unit casing 902.
Fig. 3 is that another structure type of cycle tubulation atmospheric evaporator 9 increases on the basis of Fig. 2 into air duct 918, it is therefore an objective to improve the temperature for the air being pumped into tower.It is connected at evaporator lower inlet with evaporator into air duct 918, into Air duct shell is sealed with evaporator shell junction but detachably, disconnected side is sealed with anti-corrosion material, into air duct by holder 917 supports need to install air-inlet grille simultaneously into air duct top, into installation air dry combustion method pipe 919 in air duct.
Fracturing fluid processing is mainly made of four process flows:
(1) coagulating sedimentation pre-processes:Fracturing outlet liquid is pumped into coagulation pretreatment tank, is returned to pressure break with chemicals dosing plant 7 Aluminium system's aluminium polychloride (PAC) and sodium carbonate (Na are added in drain waste water2CO3) coagulation pretreatment is carried out, make Ca2+、Mg2+Ion Precipitation is formed, while removing the impurity such as the turbidity in waste water, suspended matter fracturing fluid residual components, crude oil.The coagulation pretreatment The hydraulic detention time of flocculation process is 15 ± 5min.
(2) Fenton oxidation:Water outlet is pumped into filter press press filtration using screw pump after coagulation pretreatment, realizes and is separated by solid-liquid separation, It filters out waste water gravity flow and enters Fenton retort, hydrogen peroxide, ferric sulfate, sulphur are added to Fenton retort with chemicals dosing plant 8 Acid controls time into medicine and into dose using valve.H2O2In Fe2+It is further by Fenton oxidation under the catalytic action of ion By the hardly degraded organic substance deep oxidation degradation in waste water, the reaction time is 1.25 ± 0.25h.
(3) precipitation filtering:Waste water after Fenton oxidation is flowed into sedimentation basin 4, by being mounted in flow process Static mixer 10 in pipeline adds the Fe in NaOH precipitation water into the waste water after Fenton reactions3+Ion, solution is through heavy It is separated by solid-liquid separation again by filter press after the precipitation of shallow lake pond, filtrate flows into sandfiltration pot 5 and filters.
(4) it is concentrated by evaporation:The waste water gone out after sandfiltration pot is pumped into cycle column tube evaporimeter 9 and is evaporated concentration.Waste water is following The concentration and evaporation processing step of circular row pipe atmospheric evaporator 9 is as follows:
When high-salt wastewater after pretreatment enters atmospheric evaporator, waste water is first pumped into circulating-heating through water circulating pump 910 The spray system 905 of 906 top of tubulation, suitable waste water being fully atomized, mist are equably sprayed by water distributor 904 into tower Change waste water and flow through heat cycles tubulation 906 under the effect of gravity, honeycomb padding 907 is filled between heat cycles tubulation, is formed Thin film shape flow improves heat exchange efficiency to increase heat exchange area and heat-exchange time.Spent shower water by with air and heating Rapid vaporization enters gas phase at vapor after cycle tubulation fully exchanges heat, and the vapor after vaporization is taken away by high-power blower 901, To realize the evaporation and concentration of waste water.Remaining waste water falls back to the cycle header tank 911 of base of evaporator, then by water circulating pump 910, which are sent into spray system 905, recycles.The water droplet carried secretly in air is stopped by water collection device 903, falls after rise and is heated into cycle tubulation Through in heating evaporation in device.High-temperature vapour is passed into circulating-heating tubulation, high-temperature vapour is entered by coil pipe upper steam entrance Tubulation is recycled, heat exchange is carried out with the spent shower water and air recycled outside tubulation pipe, liquid is gradually condensed by gaseous state, under Portion's steam (vapor) outlet outflow, passes back into softening water tank.Meanwhile dry temperature higher air under the action of wind turbine by bottom inlet air Grid 908 enters in tower (Fig. 2), or enters into air duct 18 (Fig. 3), enters evaporator after the heating of air dry combustion method pipe 919 It forms moisture film when packing area, waste water flow through filler surface and air carries out heat exchange, the lower air of high humility temperature is from top Extraction, a required heat part for waste liquid evaporation is conducted heat by air to be provided, and a part is heated by cycle tubulation and provided.Waste liquid its Yu Shui is instilled in bottom cycle header tank.The waste water for instilling bottom cycle header tank is pumped into spray system again through water circulating pump, will Water cycle is got up, and cycle sprinkling waste water improves evaporation efficiency.In evaporator, the ratio of design treatment water and quantity of circulating water is 1:10, evaporation efficiency 50%.
Compared with the wind turbine used by the common evaporator of high-power blower used by evaporator, difference lies in:It is common to steam Only there are one drainages for the fan action of hair device, and the steam in tower, which is only passed through wind turbine, aspirates extraction evaporator;And this Evaporator uses high-power blower, can improve gas flow and gas flow rate in evaporator, evaporation rate and liquid level superficial air Flow velocity is related, and air velocity is bigger, is more conducive to evaporate;And it is passed also with conventional evaporator different from this evaporator principle System evaporator evaporates that required energy is substantially all to be provided by heating tubulation, and an energy part needed for the evaporation of this evaporator by Heating tube provides, and another part is provided by the higher air of enthalpy, can save heating energy consumption, therefore be also required to using more powerful Wind turbine is to provide the gas flow of bigger, but more common evaporator is greatly reduced on total energy consumption;Evaporator fan power needs root According to evaporator packing area height, designed rating size determines, evaporator outlet wind speed need to be ensured about in 12- depending on actual conditions 20m/s, exit wind speed when air outlet velocity is much larger than common evaporator operation.In energy consumption, common evaporator often evaporates 1kg water The quantity of steam being actually needed is about in 1.2-1.6kg, and this evaporator often evaporates the quantity of steam that 1kg water is actually needed and about exists 0.6-0.8kg, this evaporator overall energy consumption are about the 50%-60% of common evaporator overall energy consumption, and specific effect regards live ring Border temperature, humidity variation have certain fluctuation.
Sichuan Province's shale gas exploitation well fracturing fluid is handled using the utility model processing equipment, is handled Each stage water quality situation is shown in Table 1 in the process.
Water analysis table after each phase process of 1 fracturing outlet liquid of table
Raw water COD is 565mg/L, hardness 3710mg/L, total dissolved solid 1.52 × 104G/L, chloride 1.72 × 104Mg/L, design treatment amount are 5m3/h.Coagulation pretreatment and belt filter press part, coagulating basin hydraulic detention time are 15min, it is 3.75kg/h, Na to add aluminium polychloride2CO3Dosage is 18.55kg/h.Fenton oxidation process part, FeSO4·7H2O dosages are 1.25kg/h, H2O2Dosage is 3.14kg/h, H2SO4Dosage is 0.25g/h, and NaOH is added Amount is 0.54kg/h, and oxidation time 1.25h, the inclined-plate clarifying basin residence time is 3h, and effluent quality is that COD is after processing 72mg/L, hardness 31.32mg/L, total dissolved solid 16.06g/L.Cycle column tube evaporimeter is evaporated concentration portion Point, the ratio of liquid waste processing water and quantity of circulating water is 1:10, designed rating 50%.

Claims (6)

1. a kind of shale gas exploitation fracturing fluid cycle tubulation evaporates minimizing processing equipment, which is characterized in that including according to The secondary coagulation filling being connected to by pipeline, cycle tubulation atmospheric evaporator, is steamed Fenton retort, filter press, sedimentation basin, sandfiltration pot Boiler furnace, water softening plant and softening water tank;Further include filling the sodium carbonate being connected and PAC chemicals dosing plants and Fenton with coagulation Hydrogen peroxide and ferric sulfate and sulfuric acid chemicals dosing plant that retort is connected and the sodium hydroxide dosing that static mixer is connected fill It sets, static mixer, suction pump and the valve being accordingly arranged on pipeline;
The cycle tubulation atmospheric evaporator is square or round tower structure, and the high-power wind of axial-flow type is arranged in the tower of evaporator Suction pump is arranged outside in machine, water collection device, water distributor, cycle tube still heater, packing area and cycle header tank, tower;The axial-flow type High-power blower is located at evaporator top exit, and the power of wind turbine need to ensure that evaporator outlet wind speed reaches 12-20m/s;Cloth Hydrophone is located at evaporator top, and water collection device is mounted between water distributor and axial-flow type high-power blower;It is filler in the middle part of evaporator Area is filled with the heat safe anti-corrosion material of honeycomb structure, and cycle tube still heater is arranged in packing area, around by filler It surrounds, the cycle tube still heater and tower external heat source unicom, the length and the number of plies for recycling tubulation are calculated by required heat exchange amount It arrives;Air inlet, base of evaporator setting cycle header tank is arranged in evaporator lower part.
2. shale gas exploitation fracturing fluid cycle tubulation as described in claim 1 evaporates minimizing processing equipment, special Sign is:The air inlet is also associated with into air duct, into air dry combustion method pipe is equipped in air duct, is entered the wind into air duct and evaporator Mouth is tightly connected and is detachable structure.
3. shale gas exploitation fracturing fluid cycle tubulation as described in claim 1 evaporates minimizing processing equipment, special Sign is:The air inlet of evaporator and the air inlet of air duct is provided with air-inlet grille.
4. shale gas exploitation fracturing fluid cycle tubulation as described in claim 1 evaporates minimizing processing equipment, special Sign is:The water collection device is corrosion-resistant material, is made as waveform.
5. shale gas exploitation fracturing fluid cycle tubulation as described in claim 1 evaporates minimizing processing equipment, special Sign is:The water distributor is to be made of with water conduit tube and branch pipe and nozzle what is arranged in dendroid, and nozzle uses big flow mist Change nozzle, nozzle quantity and arrangement are determined by cloth water flow and single-nozzle spray flow.
6. shale gas exploitation fracturing fluid cycle tubulation as described in claim 1 evaporates minimizing processing equipment, special Sign is:The cycle tube still heater uses band fin anti-corrosion and high temperature resistant, high pressure stainless steel or copper tube to make, using outer Shape is disc or U-typed coil arrangement.
CN201721834862.XU 2017-12-25 2017-12-25 A kind of shale gas exploitation fracturing fluid cycle tubulation evaporation minimizing processing equipment Withdrawn - After Issue CN207726911U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108117214A (en) * 2017-12-25 2018-06-05 重庆大学 Shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method and equipment
CN111573944A (en) * 2020-05-22 2020-08-25 郝福利 Wet differential evaporation method sewage and wastewater treatment device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108117214A (en) * 2017-12-25 2018-06-05 重庆大学 Shale gas exploitation fracturing fluid Xun Huan tubulation evaporation minimizing processing method and equipment
CN108117214B (en) * 2017-12-25 2021-02-26 重庆大学 Shale gas exploitation fracturing flowback waste liquid circulating tube array evaporation reduction treatment method and equipment
CN111573944A (en) * 2020-05-22 2020-08-25 郝福利 Wet differential evaporation method sewage and wastewater treatment device and method

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