CN116617890A - Modularized skid-mounted electrically-driven sand mixing equipment - Google Patents
Modularized skid-mounted electrically-driven sand mixing equipment Download PDFInfo
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- CN116617890A CN116617890A CN202210125770.3A CN202210125770A CN116617890A CN 116617890 A CN116617890 A CN 116617890A CN 202210125770 A CN202210125770 A CN 202210125770A CN 116617890 A CN116617890 A CN 116617890A
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- 239000004576 sand Substances 0.000 title claims abstract description 138
- 238000002156 mixing Methods 0.000 title claims abstract description 118
- 239000007788 liquid Substances 0.000 claims abstract description 235
- 239000000843 powder Substances 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 8
- 238000011161 development Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- -1 shale gas Chemical compound 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- General Life Sciences & Earth Sciences (AREA)
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- Accessories For Mixers (AREA)
Abstract
The invention discloses modularized skid-mounted electrically-driven sand mixing equipment, which is characterized in that a liquid inlet module, a sand mixing module, a liquid discharging module, an electric control module, a liquid adding module and a dry powder adding module are arranged on a frame type skid frame; the liquid inlet manifold and the liquid outlet manifold are provided with detachable connecting devices; the cross section of the sand mixing tank is a cross section of two circles ""shape, each circle is provided with 1 stirrer; sand mixing equipmentA variable frequency motor is adopted as a driving device of the device; the control valves of the liquid inlet module and the liquid outlet module are electric valves; the sand mixing equipment is controlled to run by a PLC programmable controller of a control system in the electric control module. The device has the advantages that the modularized structural design is adopted, and the space layout is reasonable; the electric drive is used for replacing diesel drive, so that the development strategy of national new energy equipment is met; by two circles intersecting "The volume is increased by the design of the 'shape sand mixing tank and double stirring'; and the coordination and unification operation is realized by utilizing the Internet of things technology.
Description
Technical Field
The invention relates to sand mixing equipment, in particular to modularized skid-mounted electrically-driven sand mixing equipment, and belongs to the technical field of petroleum development engineering.
Background
Along with the continuous increase of the exploration and development force of unconventional natural gas, particularly shale gas, how to break through the prior core technology, the realization of the production of natural gas in the aspects of increasing storage becomes an industry key. The fracturing operation is used as the most effective measure for shale gas yield increase, the operation process is realized through a whole set of fracturing equipment, and the sand mixing device is used as key core equipment in fracturing construction, so that the stability and reliability of the performance of the sand mixing device become key to the success and failure of the fracturing operation.
The sand mixing equipment is core equipment for fracturing construction, and has the function of mixing fracturing base fluid with various auxiliary agents and propping agents according to the requirements of a fracturing process and supplying the mixture to subsequent fracturing equipment.
In the development process of the fracturing equipment to large-scale, integration, digitization and intellectualization, the following problems exist in the conventional matched operation mode:
(1) The device has a narrow space, and a large number of structural members interfere, so that the maintenance is not facilitated;
(2) The output displacement of the sand mixing equipment is small, and the requirements of factory-type large-displacement fracturing construction operation cannot be met;
(3) The diesel engine is adopted as a power source, so that the problems of high noise, high emission, high energy consumption, low transmission efficiency and the like exist, and the environment-friendly requirement is not met;
(4) The sand ratio is inaccurate in metering, and particularly the problem is more remarkable under the condition of large-displacement output;
(5) The devices are mutually independent, information transmission is not effectively integrated, and the intelligent joint operation degree is relatively weak.
Disclosure of Invention
In order to overcome the defects of the existing sand mixing equipment, the invention provides modularized skid-mounted electric drive sand mixing equipment.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a modularization skid-mounted electricity drives sand mixing equipment, includes sand mixing tank, motor, centrifugal pump, valve, counter, and the sand mixing tank is connected with feed liquor system, flowing back system, installs feed liquor module, sand mixing module, flowing back module, automatically controlled module, liquid interpolation module, dry powder interpolation module on the frame type skid frame, feed liquor manifold of feed liquor module, the flowing back manifold of flowing back module and the sand mixing tank intercommunication of sand mixing module.
The cross section of the sand mixing tank is formed by intersecting two circlesIn the shape of a circle, 1 stirrer is arranged in each circle.
The liquid feeding module, the sand mixing module, the liquid discharging module, the liquid adding module and the dry powder adding module are driven by a variable frequency motor; the control valves of the liquid inlet module and the liquid outlet module are electric valves.
The sand mixing equipment is controlled to run by a PLC programmable controller of a control system in the electric control module.
And a liquid inlet of the liquid inlet module is communicated with a liquid inlet of the sand mixing tank through a liquid inlet manifold, and a liquid inlet motor drives a liquid inlet centrifugal pump to input fracturing base liquid into the sand mixing tank.
The number of the liquid inlets is more than 2, each liquid inlet is provided with a liquid inlet electric valve, the liquid inlets with more than 2 are separated into two parts with independent liquid supply systems by liquid inlet isolation electric valves, and the liquid supply systems comprise a liquid inlet manifold, a liquid inlet centrifugal pump and a liquid inlet motor.
The pipeline of feed liquor manifold is provided with detachable connecting device.
The liquid outlet of the liquid discharging module is communicated with the liquid outlet of the sand mixing tank through a liquid outlet manifold, and the liquid discharging motor drives the liquid discharging centrifugal pump to discharge the mixed fracturing fluid in the sand mixing tank.
The number of the liquid draining ports is more than 2, each liquid draining port is provided with a liquid draining electric valve, and the liquid draining ports with more than 2 liquid draining ports are separated into two parts with independent liquid draining systems by the liquid draining isolating electric valves, and each liquid draining system comprises a liquid draining manifold, a liquid draining centrifugal pump and a liquid draining motor.
The pipeline of the liquid drain manifold is provided with a detachable connecting device.
The stand of the sledge frame is fixedly arranged on the sledge seat.
The liquid inlet module, the sand mixing module and the liquid discharging module are fixedly arranged on the skid seat; the electric control module is arranged above the liquid inlet module, the liquid adding module is arranged above the liquid discharging module, the operation platform is arranged above the sand mixing module, and the dry powder adding module is arranged above the sand mixing tank; the electric control module, the liquid adding module, the operating platform and the vertical frame are fixedly connected.
The electric control module comprises a control room and a control system; the control system is provided with a liquid crystal touch screen, an Internet of things control system and a remote control system interface, and monitors and controls the running of the sand mixing equipment in real time according to the sand amount, the liquid amount, the equipment control, the equipment life cycle, the mutual interlocking and the data information related to the external environment of the fracturing operation site, so as to complete automatic sand ratio control, automatic chemical additive control, automatic liquid level control and automatic interlocking control; according to the use condition of the materials in the operation site, feeding back the material demand information automatically; and automatically generating the information to be maintained of the equipment according to the use condition of the equipment.
And the control system and the control room perform signal and data transmission through an aviation cable.
The sand inlet of the upper end of the sand mixing tank is provided with vertical downward guide plates, and the number of the guide plates is more than 2 and parallel to each other.
The dry powder adding device of the dry powder adding module comprises a screw conveyor, a hopper and a variable frequency motor, wherein the screw conveyor is connected with the bottom of the hopper and is fixedly arranged on the upper end surface of the sand mixing tank; the variable frequency motor is connected with a rotating shaft of the screw conveyor through a coupler.
The liquid adding device of the liquid adding module comprises a cam pump, a variable frequency motor, a liquid adding tank, an electromagnetic flowmeter, a one-way valve, a union assembly and a manifold piece, wherein the variable frequency motor is connected with a rotating shaft of the cam pump through a coupler, and the liquid adding tank is connected with the electromagnetic flowmeter, the one-way valve and the cam pump through the union assembly and the manifold piece.
And a pipeline at the connecting end of the liquid inlet manifold and the sand mixing tank is vertically arranged from bottom to top along the wall of the tank.
The lifting lugs are fixedly arranged at the upper ends of the stand frames in a detachable and fixed connection mode with the skid seats.
The invention has the beneficial effects that the modularized structural design is adopted, the space layout is reasonable, and the maintenance or replacement of the parts is convenient; a centrifugal pump with large flow rate is selected, two paths of systems are designed in parallel, and the discharge amount is increased; the electric drive is used for replacing diesel drive, so that the energy-saving diesel drive has low noise, low emission and low energy consumption, meets the development requirements of the environment-friendly, energy-saving and green industries, and meets the development strategy of new energy equipment in China; by adopting the outline of two intersecting circlesThe design of the shape sand mixing tank and the double stirring, the volume is increased, the stirring efficiency is improved, and the requirements of uniform mixing of the fracturing sand and accurate metering of the sand-liquid ratio under the condition of large discharge output are met; the device data information is effectively integrated together by utilizing the internet of things technology, and big data are shared, so that coordinated and unified operation is realized, and the intelligent degree is high.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a modular skid-mounted electrically-driven sand mixing device of the present invention.
FIG. 2 is a schematic structural view of the modular skid-mounted electrically driven sand mixing apparatus of the present invention.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a right side view of fig. 2.
Fig. 5 is a top view of fig. 2.
In the figure: 1. the hydraulic system comprises a liquid inlet manifold, a liquid inlet centrifugal pump, a control chamber, a liquid inlet motor, a sand mixing tank, a sand inlet, a guardrail, a liquid outlet manifold, a sand drawing port, a liquid outlet centrifugal pump, a liquid outlet motor, a liquid inlet electric valve, a liquid inlet isolation electric valve, a liquid inlet electric valve, a liquid outlet port and a control system, the device comprises an operating platform, an agitator, a dry powder adding device, a sledge frame, a lifting lug, a liquid adding device, a liquid outlet isolation electric valve, a vertical frame, a sledge seat, a guide plate, a liquid inlet module, a sand mixing module, a liquid discharging module, an electric control module, a liquid adding module and a dry powder adding module.
Detailed Description
The invention is further described below with reference to the drawings and examples. However, it should be understood by those skilled in the art that the present invention is not limited to the specific embodiments listed and should be included within the scope of the present invention as long as the spirit of the present invention is satisfied.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "left", "right", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," "sealed" are to be construed broadly, and for example, the connection may be a fixed connection, a removable connection, or an integral connection; the two components can be mechanically connected, directly connected or indirectly connected through an intermediate medium, and can be communicated inside the two components. The seal may be an oil seal, a packing seal or other seal. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
See fig. 1 and 2. The invention relates to modularized skid-mounted electrically-driven sand mixing equipment, which comprises a liquid inlet module 100, a sand mixing module 200, a liquid discharging module 300, an electric control module 400, a liquid adding module 500 and a dry powder adding module 600, wherein the liquid inlet module 100, the sand mixing module 200, the liquid discharging module 300, the electric control module 400, the liquid adding module 500 and the dry powder adding module 600 are arranged on a skid frame 21.
The sledge frame 21 includes grudging post 25, sledge seat 26, and grudging post 25 is rectangular frame formula structure, and grudging post 25 is fixed to be set up on sledge seat 26, adopts the detachable fixed connection mode, makes things convenient for the maintenance and the dismantlement of equipment. Further, lifting lugs 22 for lifting are mounted at 4 corners of the upper end of the stand 25.
The liquid inlet module 100, the sand mixing module 200 and the liquid discharge module 300 are fixedly arranged on the skid base 26 from left to right in sequence; the electronic control module 400 is arranged above the liquid inlet module 100, the liquid adding module 500 is arranged above the liquid discharging module 300, the operation platform 18 is arranged above the sand mixing module 200, and the dry powder adding module 600 is fixedly arranged above the sand mixing tank 5; the electric control module 400, the liquid adding module 500, the operation platform 18 and the stand 25 are fixedly connected.
The driving devices in the liquid inlet module 100, the sand mixing module 200, the liquid discharging module 300, the liquid adding module 500 and the dry powder adding module 600 all adopt variable frequency motors; the control valves of the liquid inlet module 100 and the liquid outlet module 300 are electric valves; the meters in the sand mixing equipment all adopt electronic meters.
The sand mixing equipment is controlled to operate by a PLC programmable controller of the control system 17 in the electronic control module 400.
The sand mixing module 200 comprises a sand mixing tank 5 and a stirrer 19, wherein the sand mixing tank 5 is provided with a fracturing base fluid input port, a mixed fracturing fluid discharge port, a sand inlet 6, a sand drawing port 9 and a sewage outlet, the sand inlet 6 is arranged at the upper end of the sand mixing tank 5, the fracturing base fluid input port is positioned at the upper part of the sand mixing tank 5, the mixed fracturing fluid discharge port is positioned at the lower part of the sand mixing tank 5, the sand drawing port 9 is close to the bottom of the sand mixing tank 5, and the sewage outlet is positioned at the bottom of the sand mixing tank 5.
See fig. 5. The cross section of the sand mixing tank 5 is an outer wheel with two intersecting circlesProfile of a vehicleForm, or (I)>The volume of the shape sand mixing tank 5 is increased compared with that of a conventional round sand mixing tank; each circle of the sand mixing tank 5 is provided with 1 stirrer 19; preferably, the stirrer 19 is vertically arranged at the center of a circle, the rotation directions of 2 stirrers 19 are the same or opposite, the uniform mixing of the mixed liquid and sand is effectively ensured, and the stirrer 19 is controlled by a variable frequency motor, so that the stirring speed can be accurately controlled.
The sand inlet 6 of the upper end of the sand mixing tank 5 is provided with the guide plates 27 which are vertically downward, the number of the guide plates 27 is more than 2 and are parallel to each other, sand can uniformly fall into the sand mixing tank 5 through the guide plates 27, and stirring difficulty and uneven stirring caused by sand accumulation are avoided.
The sand inlet 6 of the sand mixing tank 5 can be installed according to the actual condition of the operation site, and the structural layout of a manifold is simplified.
See fig. 3. The liquid supply system of the liquid inlet module 100 comprises a liquid inlet manifold 1, a liquid inlet centrifugal pump 2 and a liquid inlet motor 4, wherein a liquid inlet 13 is communicated with a fracturing base liquid input port of the sand mixing tank 5 through the liquid inlet manifold 1, and the liquid inlet motor 4 drives the liquid inlet centrifugal pump 2 to input fracturing base liquid into the sand mixing tank 5.
The number of the liquid inlets 13 is more than 2, each liquid inlet 13 is provided with a liquid inlet electric valve 12, and the liquid inlets 13 with more than 2 are separated into two parts with independent liquid supply systems by liquid inlet isolation electric valves 14. Preferably, 6 (but not limited to 6) liquid inlets 13 are adopted, and the matched liquid inlet electric valve 12 is made of stainless steel and has good corrosion resistance. The pipeline of feed liquor manifold 1 is provided with detachable connection device, sets up generally at feed liquor manifold 1 corner, adopts clamp connection, the on-the-spot dismantlement and the maintenance of being convenient for. And a flowmeter is arranged on the liquid inlet manifold 1 and is used for liquid inlet metering.
The liquid inlet motor 4 is a variable frequency air cooling integrated motor, has stable and reliable performance and can accurately control liquid inlet amount; the liquid inlet centrifugal pump 2 and the liquid inlet manifold 1 are connected together through an electric valve and are opened or closed by a control system 17.
See fig. 4. The liquid draining system of the liquid draining module 300 comprises a liquid draining manifold 8, a liquid draining centrifugal pump 10 and a liquid draining motor 11, wherein a liquid draining port 16 is communicated with a mixed fracturing fluid outlet of the sand mixing tank 5 through the liquid draining manifold 8, and the liquid draining motor 11 drives the liquid draining centrifugal pump 10 to drain the mixed fracturing fluid in the sand mixing tank 5.
The number of the liquid discharge ports 16 is more than 2, each liquid discharge port 16 is provided with a liquid discharge electric valve 15, and the liquid discharge ports 16 with more than 2 liquid discharge ports are separated into two parts with independent liquid discharge systems by a liquid discharge isolation electric valve 24. Preferably, 6 (but not limited to 6) liquid draining ports 16 are adopted, and the matched liquid draining electric valve 15 is made of stainless steel and has good corrosion resistance. The pipeline of the liquid drainage manifold 8 is provided with a detachable connecting device, and the detachable connecting device is usually arranged at the turning part of the liquid drainage manifold 8, and is connected by adopting a clamp, so that the detachable connecting device is convenient to detach and maintain on site. And a flowmeter is arranged on the liquid discharge manifold 8 and is used for liquid discharge metering.
The liquid discharge motor 11 is a variable frequency air cooling integrated motor, has stable and reliable performance, and can accurately control liquid discharge amount; the drain centrifugal pump 10 and the drain manifold 8 are connected together through an electric valve and are opened or closed by a control system 17.
The sand mixing equipment is provided with two independent liquid inlet systems and two independent liquid discharge systems, so that the liquid discharge capacity of the sand mixing equipment is greatly improved, and the operation requirements of different fracturing processes are met.
The pipeline of feed liquor manifold 1 and the 5 link of fracturing blender jar sets up from bottom to top perpendicularly along the tank wall, can make fracturing base fluid efficient get into fracturing blender jar 5.
The dry powder adding device 20 of the dry powder adding module 600 comprises a screw conveyor, a hopper and a variable frequency motor, the dry powder adding device 20 is fixedly arranged above the sand mixing tank 5, the screw conveyor is connected with the bottom of the hopper, and the variable frequency motor is connected with a rotating shaft of the screw conveyor through a coupling.
The liquid adding device 23 of the liquid adding module 500 comprises a cam pump, a variable frequency motor, a liquid adding tank, an electromagnetic flowmeter, a one-way valve, a union assembly and a manifold piece, wherein the variable frequency motor is connected with a rotating shaft of the cam pump through a coupling, and the liquid adding tank is connected with the electromagnetic flowmeter, the one-way valve and the cam pump through the union assembly and the manifold piece.
Guard rails 7 are arranged around the operation platform 18 to protect the safety operation of workers.
The electronic control module 400 comprises a control room 3 and a control system 17, and the control room 3 and the control system 17 perform signal and data transmission through an aviation cable.
The control room 3 is used for integrally installing manual control of electric equipment such as a liquid inlet motor 4, a liquid discharge motor 11 and a motor of a stirrer 19 on the sand mixing equipment, and can operate and control the operation working condition of the sand mixing equipment; when the touch screen control system is in a problem, manual control is adopted, so that the operation safety of the sand mixing device is ensured. The control room separates strong electricity and weak point, improves the security in the operation process.
The control system 17 is provided with a liquid crystal touch screen, a remote control system interface and an advanced internet of things control system, and can also operate and control the operation working condition of the sand mixing equipment through the liquid crystal touch screen, meanwhile, the sand amount, the liquid amount, the equipment control, the equipment life cycle, the mutual interlocking and the related data information of the external environment (such as weather conditions, operation well site working conditions, matched pump truck data, power supply conditions and the like) of the fracturing operation site are all-directionally connected together, the operation of the sand mixing equipment is monitored and controlled in real time, intelligent construction operation is performed, and automatic sand ratio control, automatic chemical additive control, automatic liquid level control and automatic interlocking control are realized, and material demand information is automatically fed back according to the use condition of materials of the operation site; according to the service condition of the equipment, the information to be maintained of the equipment is automatically generated, and the whole life cycle management of the equipment is realized.
The working process of the modularized skid-mounted electric-driven sand mixing equipment is as follows:
according to the site conditions, a plurality of modules of the sand mixing equipment are installed and connected, and can be connected in a split mode or integrally connected; all operation power is driven by electric energy; controlled by a control system 17;
according to the displacement requirement of the fracturing process, the two sets of liquid supply systems can supply liquid simultaneously or can supply liquid independently by controlling the isolation electric valve 14 and the operation pipeline;
the control system 17 sets specific technological parameters of sand mixing operation, and according to the set parameters, the opening of the liquid inlet electric valve 12 and the opening of the liquid outlet electric valve 15 are controlled through the sand-liquid ratio accurately set by the control system 17, and meanwhile, the liquid inlet motor 4, the liquid outlet motor 11 and the stirrer 19 are controlled, so that the input quantity of fracturing base liquid, the discharge quantity of mixed fracturing liquid and the uniform stirring of the mixed fracturing liquid are ensured; the amount of materials to be added into the stirring tank 5 by the dry powder adding device 20 and the liquid adding device 23 is precisely controlled by the control system 17; the control system 17 monitors and operates and adjusts each module of the sand mixing equipment in real time according to the information parameters fed back by each monitoring point, so that efficient and reliable sand mixing operation is realized; the matched sand conveying equipment can also control the sand conveying amount through the control system 17, so that the accurate control of the sand-liquid ratio is realized.
The invention has the following advantages and beneficial effects:
firstly, a modularized structural design is adopted, so that the traditional integrated structural design is broken, and the maintenance or replacement of each system is facilitated; the liquid inlet module, the sand mixing module and the liquid discharge module can be directly connected with each other or can be connected through flexible pipelines, so that the field adaptability is high;
secondly, a double liquid inlet system and a double liquid outlet system are adopted, the double liquid inlet pipelines and the double liquid outlet pipelines are arranged in parallel, the electric valve is opened/closed according to the use requirement, and the two pipelines can synchronously operate so as to meet the requirement of fracturing with large discharge capacity (more than 2 times of the maximum discharge capacity of the existing equipment); closing the electric valve, wherein each pipeline can independently operate;
third, adoptDouble stirring symmetrical design of the shaped sand mixing tank, when the stirrer is positiveWhen repeatedly stirring, the uniform mixing of the fracturing base fluid and the fracturing sand is ensured;
fourth, use the frequency conversion to wind the integrated motor, replace traditional diesel engine and hydraulic system, not merely can accurate input and output of the control equipment, can also save the space effectively, meet the industry development demand of environmental protection, energy-conservation, greening;
fifthly, by utilizing an internet of things control technology, the data information of the fracturing equipment and the data information of the sand mixing equipment are effectively integrated together, intelligent operation control is realized, and the efficiency of fracturing operation is effectively improved.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims.
Claims (10)
1. The utility model provides a modularization skid-mounted electricity drives sand mixing equipment, includes sand mixing tank, motor, centrifugal pump, valve, counter, and sand mixing tank is connected characterized by with feed liquid system, flowing back system:
the frame type skid is provided with a liquid inlet module, a sand mixing module, a liquid discharging module, an electric control module, a liquid adding module and a dry powder adding module, wherein a liquid inlet manifold of the liquid inlet module and a liquid discharging manifold of the liquid discharging module are communicated with a sand mixing tank of the sand mixing module;
the cross section of the sand mixing tank is formed by intersecting two circlesEach circle is internally provided with 1 stirrer;
the liquid feeding module, the sand mixing module, the liquid discharging module, the liquid adding module and the dry powder adding module are driven by a variable frequency motor; the control valves of the liquid inlet module and the liquid outlet module are electric valves;
the sand mixing equipment is controlled to run by a PLC programmable controller of a control system in the electric control module.
2. The modular skid-mounted electrically driven sand mixing device of claim 1, wherein: the liquid inlet of the liquid inlet module is communicated with the liquid inlet of the sand mixing tank through a liquid inlet manifold, and a liquid inlet centrifugal pump is driven by a liquid inlet motor to input fracturing base liquid into the sand mixing tank;
the number of the liquid inlets is more than 2, each liquid inlet is provided with a liquid inlet electric valve, and the liquid inlets of more than 2 are separated into two parts with independent liquid supply systems by liquid inlet isolation electric valves, wherein the liquid supply systems comprise a liquid inlet manifold, a liquid inlet centrifugal pump and a liquid inlet motor;
the pipeline of feed liquor manifold is provided with detachable connecting device.
3. The modular skid-mounted electrically driven sand mixing device of claim 2, wherein: the liquid outlet of the liquid outlet module is communicated with the liquid outlet of the sand mixing tank through a liquid outlet manifold, and the liquid outlet motor drives the liquid outlet centrifugal pump to discharge the mixed fracturing fluid in the sand mixing tank;
the number of the liquid draining ports is more than 2, each liquid draining port is provided with a liquid draining electric valve, and the liquid draining ports with more than 2 liquid draining ports are separated into two parts with independent liquid draining systems by the liquid draining isolating electric valves, wherein the liquid draining systems comprise a liquid draining manifold, a liquid draining centrifugal pump and a liquid draining motor;
the pipeline of the liquid drain manifold is provided with a detachable connecting device.
4. A modular skid-mounted electrically driven sand mixing device as set forth in claim 3, wherein:
the stand of the sledge frame is fixedly arranged on the sledge seat;
the liquid inlet module, the sand mixing module and the liquid discharging module are fixedly arranged on the skid seat; the electric control module is arranged above the liquid inlet module, the liquid adding module is arranged above the liquid discharging module, the operation platform is arranged above the sand mixing module, and the dry powder adding module is arranged above the sand mixing tank; the electric control module, the liquid adding module, the operating platform and the vertical frame are fixedly connected.
5. The modular skid-mounted electrically driven sand mixing device of any one of claims 1-4, wherein: the electric control module comprises a control room and a control system; the control system is provided with a liquid crystal touch screen, an Internet of things control system and a remote control system interface, and monitors and controls the running of the sand mixing equipment in real time according to the sand amount, the liquid amount, the equipment control, the equipment life cycle, the mutual interlocking and the data information related to the external environment of the fracturing operation site, so as to complete automatic sand ratio control, automatic chemical additive control, automatic liquid level control and automatic interlocking control; according to the use condition of the materials in the operation site, feeding back the material demand information automatically; according to the service condition of the equipment, automatically generating the information to be maintained of the equipment;
and the control system and the control room perform signal and data transmission through an aviation cable.
6. The modular skid-mounted electrically driven sand mixing device of claim 5, wherein: the sand inlet of the upper end of the sand mixing tank is provided with vertical downward guide plates, and the number of the guide plates is more than 2 and parallel to each other.
7. The modular skid-mounted electrically driven sand mixing device of claim 5, wherein: the dry powder adding device of the dry powder adding module comprises a screw conveyor, a hopper and a variable frequency motor, wherein the screw conveyor is connected with the bottom of the hopper and is fixedly arranged on the upper end surface of the sand mixing tank; the variable frequency motor is connected with a rotating shaft of the screw conveyor through a coupler.
8. The modular skid-mounted electrically driven sand mixing device of claim 7, wherein: the liquid adding device of the liquid adding module comprises a cam pump, a variable frequency motor, a liquid adding tank, an electromagnetic flowmeter, a one-way valve, a union assembly and a manifold piece, wherein the variable frequency motor is connected with a rotating shaft of the cam pump through a coupling, and the liquid adding tank is connected with the electromagnetic flowmeter, the one-way valve and the cam pump through the union assembly and the manifold piece.
9. The modular skid-mounted electrically driven sand mixing device of claim 5, wherein: and a pipeline at the connecting end of the liquid inlet manifold and the sand mixing tank is vertically arranged from bottom to top along the wall of the tank.
10. The modular skid-mounted electrically driven sand mixing device of claim 2, wherein: the lifting lugs are fixedly arranged at the upper ends of the stand frames in a detachable and fixed connection mode with the skid seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210125770.3A CN116617890A (en) | 2022-02-10 | 2022-02-10 | Modularized skid-mounted electrically-driven sand mixing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210125770.3A CN116617890A (en) | 2022-02-10 | 2022-02-10 | Modularized skid-mounted electrically-driven sand mixing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116617890A true CN116617890A (en) | 2023-08-22 |
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ID=87625273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210125770.3A Pending CN116617890A (en) | 2022-02-10 | 2022-02-10 | Modularized skid-mounted electrically-driven sand mixing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116617890A (en) |
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2022
- 2022-02-10 CN CN202210125770.3A patent/CN116617890A/en active Pending
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