A fracturing fluid preparation stirring and mixing device and use method thereof

Abstract

The present invention relates to the technical field of fracturing fluid preparation, and specifically to a fracturing fluid preparation stirring and mixing device and a method of using the same, wherein a support frame is fixedly connected to a base, a stirring shell is fixedly connected to the support frame and is located on one side of the support frame, a discharge port is arranged at the bottom of the stirring shell, a cover plate is arranged at the top of the stirring shell, a stirring motor is fixed on the cover plate, a transmission gear is connected to the output end of the stirring motor, a plurality of sliding blocks are slidably arranged around the transmission gear, a plurality of driven gears are rotatably arranged on the plurality of sliding blocks and mesh with the transmission gear, a plurality of support rods are connected to a plurality of driven gears, a gear ring is arranged on the outer side of the driven gear, the gear ring includes a lifting cylinder, a gear ring body, a friction ring and a reset spring, a plurality of stirring blades are respectively fixedly connected to a plurality of support rods, a control component controls the rotation speed of the stirring motor, and a heating component is used to heat the raw materials in the stirring shell, so that the stirring of the raw materials is more sufficient.

Description

Technical Field

[0001] The present invention relates to the technical field of fracturing fluid preparation, and in particular to a fracturing fluid preparation stirring and mixing device and a use method thereof. Background Art

[0002] Fracturing fluid is a key liquid used for hydraulic fracturing in oil and gas production. It is injected underground at high pressure to generate or expand cracks, thereby enhancing oil well production. This type of fluid contains a variety of chemical additives such as thickeners, breakers, bactericides and scale inhibitors, which are designed to optimize fluid properties, inhibit microbial activity and avoid mineral deposition. The selection of proppants and their dosage are crucial to the fracturing effect. They help to establish and maintain fractures while ensuring that the fracturing fluid has appropriate viscosity, lubricity and low fluid loss.

[0003] In the existing fracturing fluid preparation process, the stirring device is usually driven directly by a motor. However, this design has shortcomings when dealing with viscosity changes. With the addition of additives such as thickeners, the viscosity of the liquid increases. Although the motor maintains constant power, the resistance encountered by the stirrer also increases, resulting in a decrease in the effective torque transmitted. This will reduce the stirring speed, affect the mixing quality, and may weaken the overall effectiveness of the fracturing fluid. Summary of the invention

[0004] The object of the present invention is to provide a fracturing fluid preparation stirring and mixing device and a use method thereof, so as to more fully stir the raw materials, realize the efficient preparation of fracturing fluid, and improve the production efficiency.

[0005] To achieve the above-mentioned objectives, in a first aspect, the present invention provides a fracturing fluid preparation stirring and mixing device, comprising a supporting assembly and a stirring assembly, wherein the supporting assembly comprises a base and a supporting frame, the supporting frame is fixedly connected to the base and is located on one side of the base, the stirring assembly comprises a stirring shell, a discharge port, a cover plate, a stirring motor, a transmission gear, a plurality of sliding blocks, a plurality of driven gears, a plurality of supporting rods and a plurality of stirring blades, the stirring shell is fixedly connected to the supporting frame and is located on one side of the supporting frame, the discharge port is arranged at the bottom of the stirring shell, the cover plate is arranged at the top of the stirring shell, the stirring motor is fixed on the cover plate, the transmission gear is connected to the The output end of the stirring motor is connected, and multiple sliding blocks are slidably arranged around the transmission gear. Multiple driven gears are rotatably arranged on the multiple sliding blocks and mesh with the transmission gear. A gear ring is arranged on the outer side of the driven gear, and the gear ring is meshed with the multiple driven gears. Multiple support rods are connected to the multiple driven gears, and multiple stirring blades are fixedly connected to the multiple support rods respectively. The gear ring includes a lifting cylinder, a gear ring body, a friction ring and a reset spring. The output end of the lifting cylinder is connected to the gear ring body, the friction ring is arranged on the outside of the gear ring body, and the reset spring is arranged between the lifting cylinder and the gear ring body.

[0006] Among them, the fracturing fluid preparation stirring and mixing device also includes a control component and a heating component. The control component is connected to the stirring motor and is used to control the rotation speed of the stirring motor. The heating component is used to heat the raw materials in the stirring shell.

[0007] Wherein, the support assembly further includes an anti-skid pad, which is fixedly connected to the base and located at the bottom of the base.

[0008] Wherein, the cover plate comprises a cover plate body and a control cylinder, the cover plate body is slidably arranged on the stirring shell, and the output end of the control cylinder is fixedly connected to the cover plate body.

[0009] Wherein, the cover plate further comprises a sealing ring, which is fixedly connected to the cover plate body and is located between the cover plate body and the stirring shell.

[0010] Wherein, the stirring assembly further comprises a baffle, and the baffle is sleeved on the plurality of support rods, and a support clamp ring is also clamped on the support rod to limit the baffle.

[0011] Wherein, the sliding block comprises a sliding block body and a plurality of balls, and the plurality of balls are rotatably arranged at the bottom of the sliding block body.

[0012] Wherein, the stirring assembly also includes a stabilizing ring, which is rotatably arranged at the bottom of the stirring shell, and a plurality of support rods are inserted into grooves of the stabilizing ring.

[0013] Wherein, the control component includes a photoelectric sensor, a data processing unit, a control unit and an alarm unit, the photoelectric sensor is arranged on the cover body, the data processing unit is connected to the photoelectric sensor, the control unit is connected to the data processing unit, and the alarm unit is connected to the control unit.

[0014] In a second aspect, the present invention provides a method for using a stirring and mixing device for preparing a fracturing fluid, comprising: adding raw materials into a stirring shell;

[0015] The lifting cylinder is started to lift the gear ring body, so that the gear ring body is out of meshing state with the driven gear, the friction ring is in contact with the sliding block, and the position of the sliding block is limited by friction force. At this time, the transmission gear drives the driven gear to rotate rapidly to increase the stirring speed so as to stir the current position;

[0016] After the stirring is completed, the lifting cylinder is started again to push the gear ring body downward, so that the gear ring body is meshed with the driven gear again, and the connection between the friction ring and the sliding block is released. At this time, the driven gear performs planetary motion under the support of the gear ring body to adjust the stirring position of the stirring blade;

[0017] After the adjustment is completed, the gear ring body is lifted up again, and the transmission gear directly drives the driven gear to rotate quickly again to increase the stirring speed to stir the current position;

[0018] The control component controls the rotation speed of the stirring motor and uses the heating component for heating.

[0019] The invention discloses a fracturing fluid preparation stirring and mixing device and a method for using the same. The support assembly is the basis of the entire device and is composed of a sturdy and durable base and a stable support frame. The support frame and the base are precisely manufactured using high-strength materials to ensure the stability and reliability of the overall structure. The support frame and the base are firmly connected by welding or bolt fasteners and are located on one side of the base to provide a solid bearing platform for the stirring assembly. The stirring shell is closely connected to the support frame and is placed on one side of the support frame. It can accommodate a large amount of raw materials. The discharge port is located at the bottom of the stirring shell to facilitate the rapid discharge of the finished fracturing fluid. The cover plate covers the top of the stirring shell, which not only plays a sealing role, but also serves as a mounting base for the stirring motor. The stirring motor is fixed on the cover plate and drives the stirring process through a transmission gear. A plurality of sliding blocks are arranged around the transmission gear, and each sliding block is provided with a driven gear, which is precisely meshed with the transmission gear to achieve effective power transmission. When working, the stirring motor is started to drive the transmission gear to rotate, thereby driving a plurality of the driven gears to rotate, so as to drive a plurality of support rods and stirring blades to rotate, so that a plurality of stirring blades can simultaneously stir the material in the stirring shell, so that the stirring effect is better. To sum up, the fracturing fluid preparation device achieves more sufficient stirring of the raw materials through the coordinated operation of carefully designed components, thereby realizing efficient preparation of fracturing fluid, which not only significantly improves production efficiency, but also ensures high-quality output of fracturing fluid. Since the viscosity of the fracturing fluid will gradually increase during the preparation process, the load of the planetary rotating stirring blades will increase, and the rotation speed will decrease, affecting the stirring efficiency. For this reason, the present invention provides a switchable stirring mode. Specifically, when working, the lifting cylinder is first started to lift the ring gear body, so that the ring gear body is disengaged from the meshing state with the driven gear, and at the same time, the friction ring and the sliding block are in contact, so that the position of the sliding block can be limited by friction. At this time, the transmission gear can drive the driven gear to rotate quickly to increase the stirring speed to stir the current position. After the stirring is completed, the lifting cylinder is started again to push the ring gear body downward, so that the ring gear body is re-engaged with the driven gear, and the connection between the friction ring and the sliding block is released. At this time, the driven gear can perform planetary motion under the support of the ring gear body to adjust the stirring position of the stirring blade. After the adjustment is completed, the ring gear body is lifted again, and the transmission gear directly drives the driven gear to rotate quickly again to increase the stirring speed so as to stir the current position. Such a cyclic operation can perform high-speed stirring on each position in the stirring shell, thereby achieving a better stirring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural diagram of a fracturing fluid preparation stirring and mixing device according to the first embodiment of the present invention.

[0022] Figure 2 It is a right side structural diagram of a fracturing fluid preparation stirring and mixing device according to the first embodiment of the present invention.

[0023] Figure 3 It is a left structural diagram of a fracturing fluid preparation stirring and mixing device according to the first embodiment of the present invention.

[0024] Figure 4 It is a cross-sectional structural diagram of a fracturing fluid preparation stirring and mixing device according to the first embodiment of the present invention.

[0025] Figure 5 yes Figure 4 A partial enlargement of detail A.

[0026] Figure 6 It is a partial cross-sectional structural diagram of a fracturing fluid preparation stirring and mixing device according to the first embodiment of the present invention.

[0027] Figure 7 It is a flow chart of a method for using a fracturing fluid preparation stirring and mixing device according to the second embodiment of the present invention.

[0028] Support assembly 101, stirring assembly 102, control assembly 103, base 105, support frame 106, stirring shell 107, discharge port 108, cover plate 109, stirring motor 110, transmission gear 111, sliding block 113, driven gear 114, support rod 115, stirring blade 116, anti-skid pad 117, cover plate body 118, control cylinder 119, sealing ring 120, baffle 121, sliding block body 122, ball 123, stabilizing ring 124, photoelectric sensor 125, data processing unit 126, control unit 127, alarm unit 128, heating coil 129, insulation layer 130, temperature sensor 131, gear ring 132, lifting cylinder 133, gear ring body 134, friction ring 135, reset spring 136, transport shell body 138, moving wheel 139, viscosity detector 140, support plate 141. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The specific forms of fixed connection mentioned in the article include but are not limited to bolt fixing, welding, and gluing, whichever are able to achieve the corresponding functions; the rotating connection mentioned in the article refers to opening a hole in a certain component so that another component can rotate in the hole. In order to make the rotation smoother, bearings of corresponding sizes are arranged in the hole, which is also a conventional technology in the article; the sliding connection mentioned in the article means that one component can slide relative to each other on the contact surface of another component. In order to make the sliding smoother, guide rails can be set accordingly, guide wheels can be added, etc., which will not be repeated later.

[0031] First embodiment

[0032] See also Figure 1 to Figure 6The present invention provides a fracturing fluid preparation stirring and mixing device, comprising a support assembly 101, a stirring assembly 102, a control assembly 103 and a heating assembly, wherein the support assembly 101 comprises a base 105 and a support frame 106, wherein the support frame 106 is fixedly connected to the base 105 and is located on one side of the base 105, and the stirring assembly 102 comprises a stirring shell 107, a discharge port 108, a cover plate 109, a stirring motor 110, a transmission gear 111, a plurality of sliding blocks 113, a plurality of The stirring shell 107 is fixedly connected to the support frame 106 and is located on one side of the support frame 106. The discharge port 108 is arranged at the bottom of the stirring shell 107. The cover plate 109 is arranged at the top of the stirring shell 107. The stirring motor 110 is fixed on the cover plate 109. The transmission gear 111 is connected to the output end of the stirring motor 110. The plurality of sliding blocks 113 are slidably arranged on the cover plate 109. Around the transmission gear 111, a plurality of driven gears 114 are rotatably arranged on the plurality of sliding blocks 113 and meshed with the transmission gear 111. A gear ring 132 is arranged on the outer side of the driven gear 114, and the gear ring 132 meshes with the plurality of driven gears 114. A plurality of support rods 115 are connected to the plurality of driven gears 114. A plurality of stirring blades 116 are respectively fixedly connected to the plurality of support rods 115. The control component 103 is connected to the stirring motor 110. , used to control the rotation speed of the stirring motor 110, the heating component is used to heat the raw materials in the stirring shell 107, the ring gear 132 includes a lifting cylinder 133, a ring gear body 134, a friction ring 135 and a reset spring 136, the output end of the lifting cylinder 133 is connected to the ring gear body 134, the friction ring 135 is arranged on the outside of the ring gear body 134, and the reset spring 136 is arranged between the lifting cylinder 133 and the ring gear body 134.

[0033] In this embodiment, the support assembly 101 is the basis of the entire device, and is composed of a sturdy and durable base 105 and a stable support frame 106. The support frame 106 and the base 105 are precisely manufactured using high-strength materials to ensure the stability and reliability of the overall structure. The base 105 can be made of high-carbon steel or stainless steel. According to the maximum load requirement of the device, the thickness of the base should not be less than 20 mm, and corrosion resistance is taken into consideration during the design, and surface coating treatment can be selected. The design of the base needs to have enough surface area to disperse the weight and prevent the device from tilting during operation. The support frame 106 is firmly connected to the base 105 by welding or bolt fasteners, and is located on one side of the base 105, providing a solid bearing platform for the stirring assembly 102. The support frame 106 uses high-strength alloy steel and is heat-treated to enhance its hardness and toughness to ensure that it is not easily deformed during long-term use. The support frame can be precisely formed by laser cutting and CNC processing, and then connected to the base by welding or high-strength bolts to ensure the strength and stability of the connection. The stirring shell 107 is closely connected to the support frame 106 and is placed on one side of the support frame 106. It can accommodate a large amount of raw materials. The discharge port 108 is located at the bottom of the stirring shell 107 and is designed in the form of a butterfly valve or a ball valve to facilitate the control of the flow rate. The valve body material is also required to be corrosion-resistant, and the valve should have good sealing performance to prevent leakage. The cover plate 109 covers the top of the stirring shell 107, which not only plays a sealing role, but also serves as an installation base for the stirring motor 110. The stirring motor 110 is fixed on the cover plate 109 and drives the stirring process through the transmission gear 111. The stirring motor 110 uses a variable frequency motor, and the power is calculated according to the stirring load. Under normal circumstances, the power range should be between 1.5kW and 7.5kW, and the motor protection level should at least meet the IP54 standard. The transmission gear 111 uses a gear with a larger modulus to ensure sufficient strength and a long service life. The gear is made of carburized steel and surface hardened to improve wear resistance. A plurality of sliding blocks 113 are slidably arranged around the transmission gear 111. A driven gear 114 is installed on each sliding block 113, which precisely meshes with the transmission gear 111 to achieve effective power transmission. When working, the stirring motor 110 is started to drive the transmission gear 111 to rotate, thereby driving the plurality of driven gears 114 to rotate, so that the plurality of driven gears 114 can move around the transmission gear 111 in a planetary operation mode under the support of the gear ring 132, so that the plurality of support rods 115 and stirring blades 116 can be driven to rotate, so that the plurality of stirring blades 116 can simultaneously stir the material in the stirring shell 107, thereby expanding the stirring range and achieving a better stirring effect. The control component 103 monitors and regulates the rotation speed of the stirring motor 110 in real time to achieve precise control and ensure the proportioning accuracy and mixing effect of the fracturing fluid.The heating component is responsible for heating the raw materials in the stirring shell 107. Through the built-in heating elements and temperature control system, the temperature is accurately adjusted to accelerate the dissolution and reaction of the raw materials and improve the preparation efficiency of the fracturing fluid.

[0034] See also Figure 6 Since the viscosity of the fracturing fluid will gradually increase during the preparation process, the load of the planetary rotating stirring blades will increase, the rotation speed will decrease and the stirring efficiency will be affected. For this reason, the present invention provides a switchable stirring mode. Specifically, when working, the lifting cylinder 133 is first started to lift the ring gear body 134, so that the ring gear body 134 is disengaged from the meshing state with the driven gear 114, and at the same time, the friction ring 135 and the sliding block 113 are in contact, so that the position of the sliding block 113 can be limited by friction. At this time, the transmission gear 111 can drive the driven gear 114 to rotate quickly to increase the stirring speed so as to stir the current position. After the stirring is completed, the lifting cylinder 133 is started again to push the ring gear body 134 downward, so that the ring gear body 134 is re-engaged with the driven gear 114, and the connection between the friction ring 135 and the sliding block 113 is released. At this time, the driven gear 114 can perform planetary motion under the support of the ring gear body 134 to adjust the stirring position of the stirring blade 116. After the adjustment is completed, the ring gear body 134 is lifted again, and the transmission gear 111 directly drives the driven gear 114 to rotate quickly again to increase the stirring speed so as to stir the current position. Such a cyclic operation can perform high-speed stirring on each position in the stirring shell, thereby achieving a better stirring effect.

[0035] A support plate 141 is rotatably disposed at the bottom of the transmission gear 111 , and the support plate 141 is used to support the sliding block 113 .

[0036] In summary, the fracturing fluid preparation device achieves more thorough mixing of the raw materials and efficient preparation of the fracturing fluid through the coordinated operation of the carefully designed components, which not only significantly improves the production efficiency but also ensures the high-quality output of the fracturing fluid.

[0037] The support assembly 101 further includes an anti-skid pad 117 , which is fixedly connected to the base 105 and located at the bottom of the base 105 .

[0038] The anti-skid pad 117 is tightly combined with the base 105 and fixed to the bottom of the base 105. Through its unique anti-skid material and texture design, it greatly enhances the friction between the device and the ground, effectively preventing the equipment from accidentally sliding during operation, and ensuring production safety and stability.

[0039] The cover plate 109 includes a cover plate body 118 and a control cylinder 119 . The cover plate body 118 is slidably disposed on the stirring shell 107 , and an output end of the control cylinder 119 is fixedly connected to the cover plate body 118 .

[0040] The cover body 118, as a key component on the top of the stirring shell 107, adopts a sliding design and can slide flexibly on the stirring shell 107. Together with the precise drive of the control cylinder 119, the cover 109 can be opened and closed automatically, thereby improving work efficiency and ease of use.

[0041] The cover plate 109 further includes a sealing ring 120 , which is fixedly connected to the cover plate body 118 and is located between the cover plate body 118 and the stirring shell 107 .

[0042] The addition of the sealing ring 120 becomes an indispensable sealing barrier between the cover plate 109 and the stirring shell 107. It is tightly combined with the cover plate body 118 to effectively isolate the external environment and prevent dust, moisture and other impurities from entering the stirring shell 107. At the same time, it ensures that the gas generated during the stirring process will not leak, thereby maintaining the cleanliness and safety of the production environment.

[0043] The stirring assembly 102 further includes a baffle 121 , which is sleeved on the plurality of support rods 115 . A support clamp ring is also clamped on the support rod 115 to limit the position of the baffle 121 .

[0044] The baffle 121 in the stirring assembly 102 is cleverly mounted on the multiple support rods 115. The support clamp not only limits the movement range of the baffle 121, but also prevents the raw materials from entering the space where the transmission gear 111 is located, making the rotation smoother. The specific baffle is designed to be disc-shaped, with a hole in the middle to facilitate the passage of the support rod 115, and the edge has a certain thickness and strength to withstand the shear force generated during the stirring process. The diameter of the baffle 121 should be slightly smaller than the inner diameter of the stirring shell 107 to avoid wear caused by contact with the shell.

[0045] The sliding block 113 includes a sliding block body 122 and a plurality of balls 123 , and the plurality of balls 123 are rotatably disposed at the bottom of the sliding block body 122 .

[0046] The multiple balls 123 arranged at the bottom of the sliding block body 122 make the sliding block 113 move more smoothly on the support plate 141, reduce friction resistance, and extend the service life of the equipment. The sliding block body 12 is designed to be L-shaped or T-shaped, which is convenient for matching with the support structure in the stirring shell 107. The material of the sliding block body 122 should have good wear resistance and corrosion resistance. The number and size of the balls 123 should be determined according to the size of the sliding block body 122. The balls should be made of high-strength alloy steel and precision-ground to ensure smoothness during rolling.

[0047] The stirring assembly 102 further includes a stabilizing ring 124 , which is rotatably disposed at the bottom of the stirring shell 107 , and a plurality of support rods 115 are inserted into grooves of the stabilizing ring 124 .

[0048] The introduction of the stabilizing ring 124 further strengthens the stability of the stirring assembly 102. The ring is rotatably arranged at the bottom of the stirring shell 107. Multiple support rods 115 are accurately inserted into the grooves of the stabilizing ring 124 to form a stable support structure. Even in the high-speed stirring state, the balanced operation of the stirring assembly 102 can be ensured to avoid unnecessary vibration and noise. The stabilizing ring 124 is designed as an annular structure, fixed at the bottom of the stirring shell 107, and a groove matching the support rods 115 is provided in the ring. The material of the stabilizing ring 124 should have high strength and corrosion resistance, such as stainless steel or special alloys.

[0049] The control component 103 includes a photoelectric sensor 125, a data processing unit 126, a control unit 127 and an alarm unit 128. The photoelectric sensor 125 is arranged on the cover body 118, the data processing unit 126 is connected to the photoelectric sensor 125, the control unit 127 is connected to the data processing unit 126, and the alarm unit 128 is connected to the control unit 127.

[0050] The control component 103 integrates a photoelectric sensor 125, a data processing unit 126, a control unit 127 and an alarm unit 128. The photoelectric sensor 125 detects the rotation speed of the transmission gear 111. Specifically, a ring-shaped reflective point is arranged on the transmission gear 111, so that corresponding detection can be performed through the change of the reflective signal, and then the detected data is transmitted to the data processing unit 126 in real time. After analysis and processing, the control unit 127 will automatically adjust the operating state of the stirring motor 110 according to the set parameters. The alarm unit 128 will immediately trigger an alarm when an abnormal situation is detected, thereby ensuring full monitoring and safety warning of the production process, wherein abnormal situations include torque exceeding a threshold, motor temperature exceeding a threshold, etc.

[0051] The heating assembly includes a heating coil 129 , a heat preservation layer 130 and a temperature sensor 131 . The heating coil 129 is arranged outside the stirring shell 107 , the heat preservation layer 130 is arranged outside the heating coil 129 , and the temperature sensor 131 is arranged inside the stirring shell 107 .

[0052] The fine structure of the heating component consists of a heating coil 129, an insulation layer 130 and a temperature sensor 131. The heating coil 129 fits tightly to the outer wall of the stirring shell 107 to efficiently heat the raw materials. The wrapping of the insulation layer 130 effectively locks in the heat and reduces the loss of heat energy. The precise monitoring of the temperature sensor 131 realizes the temperature control of the heating process, ensuring that the temperature conditions for the preparation of the fracturing fluid meet the process requirements, and providing a solid guarantee for the quality and performance of the fracturing fluid.

[0053] The support assembly also includes a transfer shell, which includes a transfer shell body 138 and a moving wheel 139 , and the moving wheel 139 is rotatably arranged at the bottom of the transfer shell body 138 .

[0054] The processed powdered fracturing fluid can enter the transfer shell body 138, and then the transfer shell body 138 can be driven by the moving wheel 139 to move to a designated position for unloading, making it more convenient to use. A receiving valve can be set on the top of the transfer shell body 138 to better receive the powdered fracturing fluid discharged from the discharge port.

[0055] In addition, a viscosity detector 140 is installed on the stirring shell 107, and the viscosity detector 140 can be used to conveniently detect the viscosity of the fracturing fluid during the preparation process, thereby facilitating automatic control of the rotation speed and improving work efficiency.

[0056] Second embodiment

[0057] See also Figure 7 Based on the first embodiment, the present invention provides a method for using a stirring and mixing device for preparing a fracturing fluid, comprising:

[0058] S201 adds raw materials into the stirring shell 107;

[0059] Add raw materials into the stirring shell 107 by precise metering. This step is the starting point of the entire preparation process. The types and proportions of raw materials must be strictly controlled to ensure the smooth progress of the subsequent mixing process. The raw materials include base liquid, thickener, degumming agent, preservative, bactericide and other chemical additives. According to the pre-set formula, various raw materials are added to the stirring shell 107 in proportion in sequence using precise metering tools, laying the foundation for subsequent mixing.

[0060] S202: starting the lifting cylinder to lift the gear ring body, so that the gear ring body is out of meshing state with the driven gear, the friction ring contacts the sliding block, and the position of the sliding block is limited by friction. At this time, the transmission gear drives the driven gear to rotate quickly to increase the stirring speed so as to stir the current position;

[0061] The rotation of the transmission gear 111 is converted into the synchronous rotation of multiple driven gears 114 through a precise gear meshing mechanism, thereby driving multiple sliding blocks 113 to slide smoothly. This series of mechanical linkages ensures the coordination of various components of the stirring assembly 102, creates a power source for the rotation of the stirring blades 116, and marks the official start of the fracturing fluid mixing process.

[0062] After the stirring is completed, the lifting cylinder is started again to push the gear ring body downward, so that the gear ring body is meshed with the driven gear again, and the connection between the friction ring and the sliding block is released. At this time, the driven gear performs planetary motion under the support of the gear ring body to adjust the stirring position of the stirring blade;

[0063] The special design of the stirring blade 116 enables it to effectively cut the fluid during rotation, generate a strong turbulent effect, promote full contact and mixing between raw materials, accelerate the chemical reaction rate, and ensure the uniform distribution of the fracturing fluid components. In addition, the rotation speed of the stirring blade 116 directly affects the mixing effect, so it is necessary to adjust the rotation speed of the stirring motor 110 in time according to the characteristics of the raw materials and the target mixing degree to achieve the best mixing state.

[0064] After the adjustment in S204 is completed, the gear ring body is lifted up again, and the transmission gear directly drives the driven gear to rotate quickly again to increase the stirring speed so as to stir the current position.

[0065] The control component 103 plays a vital role in this process. By accurately controlling the rotation speed of the stirring motor 110, the stirring process is ensured to be efficient and stable. At the same time, the activation of the heating component heats the raw materials in the stirring shell 107. The increase in temperature helps to reduce the viscosity of the raw materials, accelerate the dissolution and mixing process, and increase the chemical reaction rate. At the same time, it can also promote the activity of certain chemical additives and further optimize the performance of the fracturing fluid. The real-time monitoring and feedback of the temperature sensor 131, combined with the automatic adjustment function of the heating component, ensures the precise control of the heating process, avoids overheating or insufficient temperature, and provides a strong guarantee for the high-quality preparation of the fracturing fluid.

[0066] The S205 control component controls the rotation speed of the stirring motor and uses a heating component for heating.

[0067] In summary, this fracturing fluid preparation method achieves high-quality preparation of fracturing fluid and improves production efficiency by precisely controlling raw material addition, efficient stirring and intelligent heating.

[0068] During the preparation process, the viscosity increases with the amount of powder medicine added; the longer the stirring time, the greater the viscosity;

[0069] Therefore, the present invention sets three modes of high-speed stirring, medium-speed stirring and low-speed stirring, monitors the viscosity during the stirring process, and matches the corresponding stirring mode according to different viscosities. The following is the corresponding data table.

[0070] Serial number Viscosity, mPa·s Configuration liquid status Stirring speed setting 1 0-50 Low viscosity High speed stirring 2 51-150 Medium mucus Mix at medium speed 3 151-300 High viscosity Low speed stirring

[0071] A solution for real-time control of stirring switching and stirring speed according to viscosity.

[0072]

[0073] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A stirring and mixing device for preparing fracturing fluid, characterized in that: The invention comprises a supporting assembly and a stirring assembly, wherein the supporting assembly comprises a base and a supporting frame, the supporting frame is fixedly connected to the base and is located on one side of the base, the stirring assembly comprises a stirring shell, a discharge port, a cover plate, a stirring motor, a transmission gear, a plurality of sliding blocks, a plurality of driven gears, a plurality of supporting rods and a plurality of stirring blades, the stirring shell is fixedly connected to the supporting frame and is located on one side of the supporting frame, the discharge port is arranged at the bottom of the stirring shell, the cover plate is arranged at the top of the stirring shell, the stirring motor is fixed on the cover plate, the transmission gear is connected to the output end of the stirring motor, a plurality of sliding blocks are slidably arranged around the transmission gear, a plurality of driven gears are rotatably arranged on the plurality of sliding blocks and meshed with the transmission gear, a gear ring is arranged on the outer side of the driven gear, the gear ring is meshed with a plurality of driven gears, a plurality of supporting rods are connected with a plurality of driven gears, a plurality of stirring blades are respectively fixedly connected to a plurality of supporting rods, and the gear ring comprises a lifting cylinder, a gear ring body, a friction ring and a reset spring The output end of the lifting cylinder is connected to the gear ring body, the friction ring is arranged on the outside of the gear ring body, and the reset spring is arranged between the lifting cylinder and the gear ring body. The fracturing fluid preparation stirring and mixing device also includes a control component and a heating component. The control component is connected to the stirring motor and is used to control the rotation speed of the stirring motor. The heating component is used to heat the raw materials in the stirring shell. The lifting cylinder is started to lift the gear ring body, so that the gear ring body is disengaged from the meshing state with the driven gear, and the friction ring is contacted with the sliding block. The position of the sliding block is limited by friction force. The transmission gear drives the driven gear to rotate to increase the stirring speed to stir the current position. After the stirring is completed, the lifting cylinder is started again to push the gear ring body downward, so that the gear ring body is meshed with the driven gear again, and the connection between the friction ring and the sliding block is released. At this time, the driven gear performs planetary motion under the support of the gear ring body to adjust the stirring position of the stirring blade.

2. A fracturing fluid preparation stirring and mixing device as claimed in claim 1, characterized in that: The support assembly also includes an anti-skid pad, which is fixedly connected to the base and located at the bottom of the base.

3. A fracturing fluid preparation stirring and mixing device as claimed in claim 2, characterized in that: The cover plate comprises a cover plate body and a control cylinder. The cover plate body is slidably arranged on the stirring shell, and the output end of the control cylinder is fixedly connected to the cover plate body.

4. A fracturing fluid preparation stirring and mixing device as claimed in claim 3, characterized in that: The cover plate further comprises a sealing ring, which is fixedly connected to the cover plate body and is located between the cover plate body and the stirring shell.

5. A fracturing fluid preparation stirring and mixing device as claimed in claim 4, characterized in that: The stirring assembly also includes a baffle, which is sleeved on the plurality of support rods. A support clamp ring is also clamped on the support rod to limit the position of the baffle.

6. A fracturing fluid preparation stirring and mixing device as claimed in claim 5, characterized in that: The sliding block comprises a sliding block body and a plurality of balls, and the plurality of balls are rotatably arranged at the bottom of the sliding block body.

7. A fracturing fluid preparation stirring and mixing device as claimed in claim 6, characterized in that: The stirring assembly also includes a stabilizing ring, which is rotatably arranged at the bottom of the stirring shell, and a plurality of supporting rods are inserted into grooves of the stabilizing ring.

8. A fracturing fluid preparation stirring and mixing device as claimed in claim 7, characterized in that: The control component includes a photoelectric sensor, a data processing unit, a control unit and an alarm unit. The photoelectric sensor is arranged on the cover body, the data processing unit is connected to the photoelectric sensor, the control unit is connected to the data processing unit, and the alarm unit is connected to the control unit.

9. A method for using a stirring and mixing device for preparing a fracturing fluid, using the stirring and mixing device for preparing a fracturing fluid according to any one of claims 1 to 8, characterized in that: include: Add raw materials into the mixing shell; The lifting cylinder is started to lift the gear ring body, so that the gear ring body is out of meshing state with the driven gear, the friction ring is in contact with the sliding block, and the position of the sliding block is limited by friction force. At this time, the transmission gear drives the driven gear to rotate rapidly to increase the stirring speed so as to stir the current position; After the stirring is completed, the lifting cylinder is started again to push the gear ring body downward, so that the gear ring body is meshed with the driven gear again, and the connection between the friction ring and the sliding block is released. At this time, the driven gear performs planetary motion under the support of the gear ring body to adjust the stirring position of the stirring blade; After the adjustment is completed, the gear ring body is lifted again, and the transmission gear directly drives the driven wheel to rotate quickly again to increase the stirring speed so as to stir the current position; the control component controls the rotation speed of the stirring motor and uses the heating component for heating.

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