CN113550726A - High-power electricity of taking vary voltage frequency conversion unit drives fracturing semitrailer - Google Patents
High-power electricity of taking vary voltage frequency conversion unit drives fracturing semitrailer Download PDFInfo
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- CN113550726A CN113550726A CN202010339646.8A CN202010339646A CN113550726A CN 113550726 A CN113550726 A CN 113550726A CN 202010339646 A CN202010339646 A CN 202010339646A CN 113550726 A CN113550726 A CN 113550726A
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- 238000006243 chemical reaction Methods 0.000 title claims description 31
- 230000005611 electricity Effects 0.000 title claims description 4
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- 230000009466 transformation Effects 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 7
- 244000261422 Lysimachia clethroides Species 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 239000002283 diesel fuel Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/06—Semi-trailers
- B62D53/067—Multi-purpose, convertible or extendable load surface semi-trailers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a high-power electrically-driven fracturing semitrailer with a variable-voltage variable-frequency unit, which comprises a semitrailer body, a fracturing pump and a motor, wherein the motor and the fracturing pump are integrated into a whole, the fracturing pump is longitudinally arranged on the semitrailer body, the semitrailer body is also provided with the variable-voltage unit, the variable-frequency unit and a lubricating system, the variable-voltage unit is connected with the variable-frequency unit, the variable-frequency unit is connected with the motor, and the lubricating system is used for lubricating and cooling the fracturing pump. The conventional power supply equipment and fracturing equipment are optimized and fused, so that one semitrailer has power supply and fracturing functions, is more flexible and convenient in actual use, and greatly optimizes the well site layout of an oil-gas field; meanwhile, the fracturing pumps are longitudinally arranged, so that the length of the fracturing pump of the upper-mounted part on the electrically-driven fracturing semitrailer is not influenced by the transportation width of the semitrailer body, and a foundation is provided for high-power operation of the fracturing semitrailer.
Description
Technical Field
The invention relates to the technical field of oil-gas field fracturing, in particular to a high-power electrically-driven fracturing semitrailer with a voltage-variable frequency conversion unit.
Background
The fracturing is a special process for low-yield oil wells, namely, fracturing sand with high pressure and high sand ratio, a water chemical additive and other propping agents are injected into the bottom of a well through a fracturing pump truck of special fracturing equipment to generate cracks in the stratum, and the flowing environment of oil in the underground is improved, so that the yield of the oil well is increased. At present, diesel oil driven fracturing and electric driven fracturing are mainly adopted, wherein a diesel engine is connected with a gearbox and a transmission shaft is used for driving a fracturing pump to work, and an electric motor is connected with the transmission shaft or a coupler for driving the fracturing pump to work.
Electrically driven fracturing is widely applied to places where certain electric power facilities are well matched, existing electrically driven fracturing equipment is generally provided with special power supply equipment to provide driving power, and the power supply equipment and the fracturing equipment are generally in one-to-one or one-to-many arrangement. When well site in-service use, not only need arrange fracturing equipment and power supply unit (fracturing equipment and power supply unit need complete set cooperation to use promptly), still need be connected every fracturing equipment and power supply unit, above process all is consuming time power relatively, and the connecting cable between the equipment is also more, and the connection operation is also loaded down with trivial details relatively.
In addition, the fracturing pump is transversely installed on the semitrailer and limited by the transportation width of a vehicle body, the fracturing pump is small in size and low in single machine power, 15-20 fracturing pump trucks are needed for one-time fracturing operation, and as many oil field well sites in China are located in mountainous areas and swamp areas, the area of the well sites is limited, and a lot of vehicles cannot be driven. Because a great deal of capital investment is needed to purchase equipment when the oil field is subjected to fracturing work, a great number of operating workers are needed to be equipped, and the production cost of the oil field is increased.
Therefore, an electric driving fracturing device with high power and convenient and quick moving, transporting, installing and using is urgently needed to be designed and manufactured to solve the production problem of the oil field.
Disclosure of Invention
The invention aims to: aiming at the problems that the existing electrically-driven fracturing equipment is inconvenient to use and the single fracturing pump truck has small power, the high-power electrically-driven fracturing semitrailer with the variable-voltage variable-frequency unit is provided, the conventional power supply equipment and the fracturing equipment are optimized and fused, so that one semitrailer has the functions of power supply and fracturing, the semitrailer is more flexible and convenient to use in actual use, and the well site layout of an oil-gas field is greatly optimized; meanwhile, the fracturing pumps are longitudinally arranged, so that the length of the fracturing pump of the upper-mounted part on the electrically-driven fracturing semitrailer is not influenced by the transportation width of the semitrailer body, and a foundation is provided for high-power operation of the fracturing semitrailer.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a high-power electricity of taking vary voltage frequency conversion unit drives fracturing semitrailer, includes half string automobile body, fracturing pump and motor, the motor with the fracturing pump is integrated as an organic whole, fracturing pump longitudinal arrangement is in half string on the automobile body, still be equipped with vary voltage unit, frequency conversion unit and lubricating system on half string of automobile body, vary voltage unit with frequency conversion unit links to each other, frequency conversion unit with the motor links to each other, lubricating system is right the fracturing pump is lubricated and is cooled off.
According to the semi-trailer, the voltage transformation unit, the frequency conversion unit and the fracturing pump are arranged on the semi-trailer body, so that one semi-trailer has power supply and fracturing functions at the same time, the semi-trailer is convenient to transport and more flexible to use, the well site layout of an oil and gas field is greatly optimized, the semi-trailer can work only by connecting a group of high-voltage cables with high-voltage power supply, and the wiring installation is more convenient and faster; the motor and the fracturing pump are integrated into a whole, so that the space occupied by the motor and the fracturing pump in the prior art can be effectively reduced, the size of a loading part of the electrically-driven fracturing semitrailer is smaller, the transportation is more convenient, space guarantee is provided for installing other equipment on a semitrailer body, the fracturing pump is longitudinally arranged, the length of the fracturing pump is not influenced by the transportation width of the semitrailer body, the stroke and the power of the fracturing pump can be increased, the traditional three fracturing pump trucks can be replaced, the occupied area of a well site during fracturing operation is greatly reduced, connecting pipelines among the fracturing equipment are greatly reduced, after the stroke is increased, the power can be increased, compared with the conventional fracturing truck, the pump stroke can be lower under the same construction displacement, and the service life of a wearing part can be prolonged; and meanwhile, compared with diesel oil driving fracturing, the electric driving fracturing is adopted, so that the noise is low, no exhaust emission pollution is caused, and the use cost is lower compared with that of diesel oil.
It should be noted that, in the prior art, the fracturing pump is transversely arranged, that is, the axis of a crankshaft of the fracturing pump is arranged along the length direction of a semi-trailer body, and the hydraulic end of the fracturing pump is arranged in the width direction of the semi-trailer body, so that the stroke and the power of the fracturing pump cannot be increased due to the limitation of the transportation width of a vehicle body; the longitudinal arrangement of the fracturing pump means that the axis of a crankshaft of the fracturing pump is arranged along the width direction of the semitrailer body, so that the length of the fracturing pump is not influenced by the transportation width of the semitrailer body, and the stroke and the power of the fracturing pump can be made larger.
As a preferable scheme of the invention, the variable-voltage unit is arranged on a gooseneck of the semi-trailer body, the fracturing pump is arranged at one end of the semi-trailer body far away from the variable-voltage unit, the lubricating system is arranged close to the fracturing pump, and the variable-frequency unit is positioned between the variable-voltage unit and the lubricating system.
As a preferable scheme of the invention, the transformation unit is of a cabin type structure, a high-voltage switch and a transformer are arranged in a cabin of the transformation unit, and the high-voltage switch is connected with the transformer.
As a preferable scheme of the invention, the frequency conversion unit is of a cabin type structure, a frequency converter is arranged in a cabin body of the frequency conversion unit, the input end of the frequency converter is connected with the voltage transformation unit, and the output end of the frequency converter is connected with the motor.
As a preferable scheme of the invention, the fracturing pump is a five-cylinder plunger pump or a three-cylinder plunger pump.
As a preferred aspect of the present invention, the stroke of the frac pump is greater than or equal to 12 ".
As a preferable scheme of the invention, the power of the fracturing pump is greater than or equal to 6000 hp.
As a preferable scheme of the invention, an output shaft of the motor is arranged in parallel with a crankshaft of the fracturing pump, and the output shaft of the motor is connected with the crankshaft of the fracturing pump through a transmission mechanism. So set up, can avoid motor and fracturing pump integration back at the ascending size of semitrailer body width direction standard that exceeds.
As a preferable scheme of the invention, the motor is of a double-end output structure, and output shafts at two ends of the motor are connected with a crankshaft of the fracturing pump through a transmission mechanism. And the double-end output motor is adopted, so that the oversize of the transmission mechanism can be avoided, and the motor and the fracturing pump are uniform in load.
As a preferable aspect of the present invention, the transmission mechanism is one of a gear box, a belt, and a chain.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the semi-trailer body is provided with the voltage transformation unit, the frequency conversion unit and the fracturing pump, so that one semi-trailer has power supply and fracturing functions at the same time, power supply equipment and fracturing equipment are not required to be used in a complete set, transportation is convenient, use is more flexible, the well site layout of an oil and gas field is greatly optimized, the semi-trailer can work only by connecting a group of high-voltage cables with high-voltage power supply, and wiring installation is more convenient and faster;
2. the motor and the fracturing pump are integrated into a whole, so that the space occupied by the motor and the fracturing pump in the prior art can be effectively reduced, the size of the upper part of the electrically-driven fracturing semitrailer is smaller, the transportation is more convenient, and a space guarantee is provided for installing other equipment on the semitrailer body;
3. the fracturing pumps are longitudinally arranged, so that the length of the fracturing pumps is not influenced by the transportation width of a vehicle body, the stroke of the fracturing pumps can reach 12' or more, the power can reach 6000hp or more, the traditional three fracturing pump trucks can be replaced, the occupied area of a well site during fracturing operation is greatly reduced, and connecting pipelines among fracturing equipment are greatly reduced;
4. after the stroke is increased, the power can be increased, and compared with a conventional fracturing truck, the pump stroke can be lower under the same construction displacement, so that the service life of a quick-wear part can be prolonged;
5. compared with diesel oil driving fracturing, the electric driving fracturing has the advantages of low noise, no exhaust emission pollution and lower use cost compared with diesel oil.
Drawings
Fig. 1 is a main view of a high-power electrically-driven fracturing semitrailer with a variable-voltage variable-frequency unit in the invention.
Fig. 2 is a top view of the high-power electrically-driven fracturing semitrailer with the variable voltage and variable frequency unit.
The labels in the figure are: 1-half trailer body, 2-voltage transformation unit, 3-frequency conversion unit, 4-lubricating system, 41-lubricating oil tank, 5-fracturing pump, 51-motor and 52-gear box.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment provides a high-power electrically-driven fracturing semitrailer with a variable voltage and variable frequency unit;
as shown in fig. 1 and 2, the high-power electrically-driven fracturing semitrailer with the voltage transformation and frequency conversion unit in the embodiment comprises a semitrailer body 1, a fracturing pump 5 and a motor 51, wherein the motor 51 and the fracturing pump 5 are integrated, the fracturing pump 5 is longitudinally arranged on the semitrailer body 1, the semitrailer body 1 is further provided with the voltage transformation unit 2, the frequency conversion unit 3 and a lubricating system 4, the voltage transformation unit 2 is connected with the frequency conversion unit 3, the frequency conversion unit 3 is connected with the motor 51, the lubricating system 4 lubricates and cools the fracturing pump 5, and the semitrailer body 1 is provided with a lubricating oil tank 41 connected with the lubricating system 4.
The invention realizes that one semitrailer has both power supply and fracturing functions by arranging the variable voltage unit, the variable frequency unit and the fracturing pump on the semitrailer body and optimally fusing the traditional power supply semitrailer and the fracturing semitrailer, compared with the prior power supply semitrailer and the fracturing semitrailer which are matched in a set for use (for example, when the power supply semitrailer supports a plurality of fracturing semitrailers, wiring is relatively complicated, a large amount of wiring accumulation can be caused on site, the wiring is complicated, and a large amount of time is consumed for the arrangement of each power supply semitrailer and a plurality of fracturing semitrailers), the wiring installation is more convenient and faster; the motor and the fracturing pump are integrated into a whole, so that the space occupied by the motor and the fracturing pump in the prior art can be effectively reduced, the size of a loading part of the electrically-driven fracturing semitrailer is smaller, the transportation is more convenient, space guarantee is provided for installing other equipment on a semitrailer body, the fracturing pump is longitudinally arranged, the length of the fracturing pump is not influenced by the transportation width of the semitrailer body, the stroke and the power of the fracturing pump can be increased, the traditional three fracturing pump trucks can be replaced, the occupied area of a well site during fracturing operation is greatly reduced, connecting pipelines among the fracturing equipment are greatly reduced, after the stroke is increased, the power can be increased, compared with the conventional fracturing truck, the pump stroke can be lower under the same construction displacement, and the service life of a wearing part can be prolonged; and meanwhile, compared with diesel oil driving fracturing, the electric driving fracturing is adopted, so that the noise is low, no exhaust emission pollution is caused, and the use cost is lower compared with that of diesel oil.
It should be noted that, in the prior art, the fracturing pump is transversely arranged, that is, the axis of a crankshaft of the fracturing pump is arranged along the length direction of a semi-trailer body, and the hydraulic end of the fracturing pump is arranged in the width direction of the semi-trailer body, so that the stroke and the power of the fracturing pump cannot be increased due to the limitation of the transportation width of a vehicle body; the longitudinal arrangement of the fracturing pump means that the axis of a crankshaft of the fracturing pump is arranged along the width direction of the semitrailer body, so that the length of the fracturing pump is not influenced by the transportation width of the semitrailer body, and the stroke and the power of the fracturing pump can be made larger.
In this embodiment, the pressure swing unit 2 is arranged on a gooseneck of the semi-trailer body 1, the fracturing pump 5 is arranged at one end of the semi-trailer body 1 far away from the pressure swing unit 2, the lubricating system 4 is arranged close to the fracturing pump 5, and the frequency conversion unit 3 is arranged between the pressure swing unit 2 and the lubricating system 4.
In this embodiment, the transformation unit 2 is a cabin structure, and a high-voltage switch and a transformer are arranged in the transformation unit cabin, and the high-voltage switch is connected with the transformer.
In this embodiment, the frequency conversion unit 3 is a cabin structure, a frequency converter is arranged in the cabin of the frequency conversion unit, an input end of the frequency converter is connected with the voltage transformation unit 2, and an output end of the frequency converter is connected with the motor 51 and is used for controlling the rotation speed of the fracturing pump 5.
In this embodiment, the fracturing pump 5 is a five-cylinder plunger pump, the stroke of the fracturing pump 5 is greater than or equal to 12 ″, and the power of the fracturing pump 5 is greater than or equal to 6000 hp. Because the fracturing pump adopts the longitudinal arrangement, make fracturing pump length not influenced by automobile body transportation width, can make the stroke and the power of fracturing pump bigger, the power of fracturing pump is three times of conventional fracturing pump truck power, but the volume is still little than conventional fracturing pump. Therefore, a single high-power fracturing semitrailer can replace three traditional fracturing pump trucks, the occupied area of a well site during fracturing operation can be greatly reduced, and connecting pipelines between fracturing equipment are greatly reduced.
In this embodiment, the output shaft of the motor 51 is arranged in parallel with the crankshaft of the fracturing pump 5, and the output shaft of the motor 51 is connected with the crankshaft of the fracturing pump 5 through a gear box 52. So set up, can avoid motor and fracturing pump integration back at the ascending size of semitrailer body width direction standard that exceeds. Preferably, the motor 51 is of a double-end output structure, and output shafts at two ends of the motor 51 are connected with two ends of a crankshaft of the fracturing pump 5 through a gear box 52. By adopting the double-end output motor, the gear box can be made thinner, so that the overlarge size of the gear box in the width direction of the semitrailer body is avoided.
Example 2
This embodiment differs from embodiment 1 in that the stroke of the frac pump 5 is less than 12 ".
Example 3
This example differs from example 1 or example 2 in that the power of the fracturing pump 5 is less than 6000 hp.
Example 4
The present embodiment is different from embodiment 1 or embodiment 2 or embodiment 3 in that the fracturing pump 5 is a triplex plunger pump.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a high-power electricity of taking vary voltage frequency conversion unit drives fracturing semitrailer, its characterized in that, includes half automobile body, fracturing pump and motor of hanging, the motor with the fracturing pump is integrated as an organic whole, fracturing pump longitudinal arrangement is in on half the automobile body of hanging, still be equipped with vary voltage unit, frequency conversion unit and lubricating system on half the automobile body of hanging, vary voltage unit with frequency conversion unit links to each other, frequency conversion unit with the motor links to each other, lubricating system is right the fracturing pump is lubricated and is cooled off.
2. The high-power electrically-driven fracturing semitrailer with the voltage and frequency conversion unit is characterized in that the voltage conversion unit is arranged on a gooseneck of the semitrailer body, the fracturing pump is arranged at one end, far away from the voltage conversion unit, of the semitrailer body, the lubricating system is arranged close to the fracturing pump, and the frequency conversion unit is located between the voltage conversion unit and the lubricating system.
3. The high-power electrically-driven fracturing semitrailer with the voltage transformation and frequency conversion unit as claimed in claim 1 or 2, wherein the voltage transformation unit is of a cabin structure, a high-voltage switch and a transformer are arranged in a cabin of the voltage transformation unit, and the high-voltage switch is connected with the transformer.
4. The high-power electrically-driven fracturing semitrailer with the variable-voltage variable-frequency unit is characterized in that the variable-frequency unit is of a cabin structure, a frequency converter is arranged in a cabin of the variable-frequency unit, the input end of the frequency converter is connected with the variable-voltage unit, and the output end of the frequency converter is connected with a motor.
5. The high-power electrically-driven fracturing semitrailer with the variable-voltage variable-frequency unit is characterized in that the fracturing pump is a five-cylinder plunger pump or a three-cylinder plunger pump.
6. The high-power electrically-driven fracturing semitrailer with the variable voltage and frequency conversion unit as claimed in claim 5, wherein the stroke of the fracturing pump is greater than or equal to 12 ".
7. The high-power electrically-driven fracturing semitrailer with the variable-voltage variable-frequency unit is characterized in that the power of the fracturing pump is greater than or equal to 6000 hp.
8. The high-power electrically-driven fracturing semitrailer with the variable-voltage variable-frequency unit is characterized in that an output shaft of the motor is arranged in parallel with a crankshaft of the fracturing pump, and the output shaft of the motor is connected with the crankshaft of the fracturing pump through a transmission mechanism.
9. The high-power electrically-driven fracturing semitrailer with the variable-voltage variable-frequency unit is characterized in that the motor is of a double-end output structure, and output shafts at two ends of the motor are connected with a crankshaft of the fracturing pump through a transmission mechanism.
10. The high-power electrically-driven fracturing semitrailer with the variable voltage and frequency conversion unit according to claim 8 or 9, characterized in that the transmission mechanism is one of a gear box, a belt and a chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010339646.8A CN113550726A (en) | 2020-04-26 | 2020-04-26 | High-power electricity of taking vary voltage frequency conversion unit drives fracturing semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010339646.8A CN113550726A (en) | 2020-04-26 | 2020-04-26 | High-power electricity of taking vary voltage frequency conversion unit drives fracturing semitrailer |
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| Publication Number | Publication Date |
|---|---|
| CN113550726A true CN113550726A (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010339646.8A Withdrawn CN113550726A (en) | 2020-04-26 | 2020-04-26 | High-power electricity of taking vary voltage frequency conversion unit drives fracturing semitrailer |
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| Country | Link |
|---|---|
| CN (1) | CN113550726A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
-
2020
- 2020-04-26 CN CN202010339646.8A patent/CN113550726A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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Application publication date: 20211026 |
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| WW01 | Invention patent application withdrawn after publication |