CN210303516U - Electro-hydraulic hybrid driving sand mixing equipment - Google Patents

Abstract

The utility model discloses an electricity liquid hybrid drive sand mixing equipment, including sled seat, motor, hydraulic pump, discharge centrifugal pump inhale the centrifugal pump, and the blending tank adds the system futilely, and system and defeated sand auger system are added to liquid, the motor, the hydraulic pump, discharge centrifugal pump inhales the centrifugal pump, and the blending tank adds the system futilely, and liquid adds system and defeated sand auger system integration sled dress on sled seat, and the motor has 2, including first motor and second motor, first motor drive discharge centrifugal pump, the second motor drives the hydraulic pump, and then the drive inhales centrifugal pump, blending tank, adds system, liquid futilely and adds system and defeated sand auger system, and the motor is the integrative motor of frequency conversion. Has the advantages that: through the application of two integrative motors of frequency conversion, at first effectively reduced the configuration of independent frequency conversion cabinet, effectively compressed the whole size of mulling equipment promptly for equipment transportation and well site arrangement are nimble more convenient. And secondly, the control system is simpler, and the power matching of the sand mulling equipment is optimized.

Description

Electro-hydraulic hybrid driving sand mixing equipment

Technical Field

The utility model relates to an oil gas field fracturing operation equipment field, concretely relates to electricity liquid hybrid drive sand mixing equipment.

Background

In the fracturing operation site of the oil and gas field in China, the power transmission system adopted by the sand mixing equipment is configured in a way that a diesel engine drives a hydraulic system through a transfer case, and executive components such as a suction centrifugal pump, a discharge centrifugal pump, a packing auger, a liquid adding system, a dry adding system and the like are driven through a hydraulic motor.

This configuration mode has the following disadvantages:

(1) large volume and complex structure:

the diesel engine system comprises an air inlet system, an exhaust system, a heating system, a fuel system, a cooling system and the like, and is complex in structure and large in occupied space;

(2) and is not environment-friendly: in the well site operation process of the sand mixing equipment driven by the diesel engine, engine waste gas pollution and noise pollution can be generated, the normal life of surrounding residents is seriously influenced, and meanwhile, fuel oil, engine oil, anti-freezing solution and the like have leakage risks and can cause pollution to the environment to a certain degree.

(3) Uneconomic: the sand mixing equipment driven by the diesel engine has the advantages of higher initial purchase cost, high unit power fuel consumption cost during the operation of the equipment and high daily maintenance cost of a power system.

In view of the development of oil and gas development equipment in China towards the direction of low energy consumption, low noise and low emission, the above disadvantages of the conventional sand mixing equipment using a diesel engine as a power source hinder the development process of unconventional oil and gas energy to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough that prior art is overcome to the purpose, provides an electricity liquid hybrid drive sand mixing equipment, through two motors as the power supply, one of them drive discharge centrifugal pump, another drive hydraulic system for discharge centrifugal pump outer all functional parts like suction centrifugal pump, auger, add futilely, liquid adds etc. provide power. The inconvenience and the defects in the use of the conventional diesel engine equipment are eliminated by the application of the motor, and the operation capacity and the energy consumption efficiency of the equipment are improved.

The purpose of the utility model is achieved through the following technical measures: the utility model provides an electricity liquid hybrid drive sand mixing equipment, includes the sled seat, and the motor, the hydraulic pump, the centrifugal pump of discharging inhales the centrifugal pump, and the blending tank adds the system futilely, and liquid adds system and defeated sand auger system, the motor, the hydraulic pump, the centrifugal pump of discharging inhales the centrifugal pump, and the blending tank adds the system futilely, and liquid adds the system and defeated sand auger system integration sled dress on the sled seat, the motor has 2, including first motor and second motor, first motor is used for the drive centrifugal pump of discharging, the second motor drives the hydraulic pump, and then the drive inhales centrifugal pump, blending tank, futilely adds system, liquid and defeated sand auger system, the motor is the integrative motor of frequency conversion.

Furthermore, the electro-hydraulic hybrid driven sand mixing equipment further comprises a suction manifold and a discharge manifold, wherein the suction manifold and the discharge manifold are respectively arranged on the left side and the right side of the prying seat.

Further, the second motor is arranged at the front end part of the prying seat.

Further, the first motor is connected with the discharge centrifugal pump through a coupling, and the first motor is arranged on one side of the discharge manifold and is spatially arranged up and down with the discharge manifold.

Further, the second electric motor drives the hydraulic pump through the transfer case.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the discharge centrifugal pump and other sand mixing equipment components except the discharge centrifugal pump are driven by the two motors, so that the configuration of the motors is effectively optimized, and the power system configuration of the sand mixing equipment is optimized. (to meet the operational requirements, the motor driving the suction centrifugal pump must meet the maximum power requirement of the centrifugal pump, the motor driving the hydraulic system must meet the maximum power requirement of all the components, the sum of the total power of the two motors is large. one motor is used for driving the suction centrifugal pump and the rest of the systems, and the suction centrifugal pump and the rest of the systems cannot simultaneously achieve the maximum output in practical application, so that the power of the motor can be corrected and reduced, the required power can be reduced by 15%, the cost is lower, the power system configuration is more excellent, and the whole machine has smaller size and lighter weight and is more compact.)

2. By selecting the frequency conversion integrated motor and integrating the inversion function on the motor, the problems of complex structure and large occupied space of a diesel engine system are avoided, meanwhile, the configuration of an independent frequency conversion cabinet is reduced by applying the frequency conversion integrated motor, the whole size of the equipment is effectively reduced by implementing the schemes, the size of 12.5m multiplied by 2.55m multiplied by 3.0m of the conventional equipment is reduced to 9.6m multiplied by 2.55m multiplied by 3.0m, and the equipment transportation and well site arrangement are more flexible and convenient due to the great reduction of the length size.

3. The parts of the whole sand mixing equipment are controlled by 2 frequency conversion integrated motors, so that the control system is simpler, the motor for driving the hydraulic pump in the operation process can be directly set at a constant speed, and the control purpose can be achieved by adjusting the rotating speed of each functional part as required in the operation process.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic structural diagram of an electro-hydraulic hybrid driven sand mixing device.

The sand conveying device comprises a first motor 1, asecond motor 2, a dischargecentrifugal pump 3, a suction centrifugal pump 4, amixing tank 5, a dry addingsystem 6, a liquid addingsystem 7, a sandconveying auger system 8 and a prying seat 9.

Detailed Description

As shown in fig. 1, an electricity liquid hybrid drive sand mixing device, including sled seat 9, the motor, the hydraulic pump, dischargecentrifugal pump 3 inhales centrifugal pump 4,blending tank 5, addsystem 6 futilely, liquid addssystem 7, and sandconveying auger system 8 inhales manifold and discharge manifold, the motor, the hydraulic pump, dischargecentrifugal pump 3 inhales centrifugal pump 4, andblending tank 5 addssystem 6 futilely, and liquid addssystem 7, and sandconveying auger system 8 inhales manifold and discharge pipe and assembles into sled dress on sled seat 9, the motor has 2, including first motor 1 andsecond motor 2, first motor 1 is used for driving dischargecentrifugal pump 3, and dischargecentrifugal pump 3 is through 1 direct drive of first motor, can conveniently effectively improve the input power of pump, and then promote the operational capability of equipment. Thesecond motor 2 drives a hydraulic pump through a transfer case, further drives a suction centrifugal pump 4, amixing tank 5, a dry addingsystem 6, a liquid addingsystem 7 and a sandconveying auger system 8, drives the dischargecentrifugal pump 3 and other sand mixing equipment components except the dischargecentrifugal pump 3 through the two motors, effectively optimizes the configuration of the motors, and optimizes the power system configuration of the sand mixing equipment. The motor is a variable-frequency integrated motor, the problems of complex structure and large occupied space of a diesel engine system are solved by selecting the variable-frequency integrated motor and integrating an inverter function on the motor, meanwhile, the application of the variable-frequency integrated motor reduces the configuration of an independent variable-frequency cabinet, the whole size of the equipment is effectively reduced by implementing the schemes, the size of 12.5m multiplied by 2.55m multiplied by 3.0m of conventional equipment is reduced to 9.6m multiplied by 2.55m multiplied by 3.0m, and the length size is greatly reduced, so that the equipment transportation and well site arrangement are more flexible and convenient. The parts of the whole sand mixing equipment are controlled by 2 frequency conversion integrated motors, so that the control system is simpler, the motor for driving the hydraulic pump in the operation process can be directly set at a constant speed, and the control purpose can be achieved by adjusting the rotating speed of each functional part as required in the operation process. Thesecond motor 2 is arranged at the front end part of the prying seat 9, the suction manifold and the discharge manifold are respectively arranged at the left side and the right side of one end, close to thesecond motor 2, of the prying seat 9, the suction inlet and the discharge outlet face the outer side surface of the sand mixing equipment, the sand conveying auger system is arranged at the rearmost part of the sand mixing equipment, themixing tank 5 is arranged at one end, close to the sand conveying auger system, a sand outlet of the sand conveying auger system is arranged above themixing tank 5, a liquid inlet of themixing tank 5 is connected with the suction manifold, and a liquid outlet of themixing tank 5 is connected with the discharge manifold. The middle end part of the sledge base is provided with a dischargecentrifugal pump 3 and a suction centrifugal pump 4. The first motor 1 is connected with the dischargecentrifugal pump 3 through a coupler, and the first motor 1 is arranged on one side of the discharge manifold and is spatially arranged up and down with the discharge manifold. The arrangement of the first electric motor 1 and the exhaust manifold provides a guarantee for an effective compression of the overall dimensions of the device.

The working principle is as follows:

the dischargecentrifugal pump 3 is directly driven by the first motor 1, an operator controls the rotating speed of the centrifugal pump in a control chamber to control the work discharge capacity, and thesecond motor 2 drives the hydraulic pump through the transfer case to drive the stirrer sucking the centrifugal pump 4 and themixing tank 5, the dry addingsystem 6, theliquid adding system 7 and the sandconveying auger system 8. During operation, the upstream fracturing base fluid is sucked by a suction inlet and is pumped into amixing tank 5 through a suction centrifugal pump 4, the proppant is conveyed into themixing tank 5 through a sand conveying auger, the dry powder additive is conveyed into themixing tank 5 through adry addition system 6, the proppant, the fracturing base fluid, the dry powder additive and the like are fully mixed in themixing tank 5 to form fracturing fluid, and the fracturing fluid is pressurized and conveyed to downstream pumping equipment through a dischargecentrifugal pump 3. The liquid additive can be injected into themixing tank 5 or into the intake manifold or the exhaust manifold via theliquid additive system 7, as required by the operation.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides an electricity liquid hybrid drive sand mixing equipment, includes the sled seat, and the motor, the hydraulic pump, the centrifugal pump of discharging inhales the centrifugal pump, and the blending tank adds the system futilely, and liquid adds system and defeated sand auger system, its characterized in that: the motor, the hydraulic pump, the centrifugal pump of discharging inhales the centrifugal pump, and the blending tank adds the system futilely, and liquid adds the system and defeated sand auger system integration sled dress on the sled seat, the motor has 2, including first motor and second motor, first motor is used for driving the centrifugal pump of discharging, the second motor drives the hydraulic pump, and then the drive inhales centrifugal pump, blending tank, adds system, liquid futilely and adds system and defeated sand auger system, the motor is the integrative motor of frequency conversion.

2. The electro-hydraulic hybrid driven sand mixing device according to claim 1, characterized in that: the electro-hydraulic hybrid driven sand mixing equipment further comprises a suction manifold and a discharge manifold, wherein the suction manifold and the discharge manifold are respectively arranged on the left side and the right side of the prying seat.

3. The electro-hydraulic hybrid driven sand mixing device according to claim 1, characterized in that: the second motor is arranged at the front end part of the prying seat.

4. The electro-hydraulic hybrid driven sand mixing device according to claim 1, characterized in that: the first motor is connected with the discharge centrifugal pump through a coupler, and is arranged on one side of the discharge manifold and is arranged up and down with the discharge manifold in space.

5. The electro-hydraulic hybrid driven sand mixing device according to claim 1, characterized in that: the second electric motor drives the hydraulic pump through the transfer case.

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