Fracturing fluid mixing and stirring device

Abstract

The utility model provides a fracturing fluid mixes and matches stirring device relates to fracturing fluid mixes and matches technical field, including stirring tank, water spray pipe and rotating component, the stirring tank has the accommodation cavity for accommodating fracturing fluid mixing material, water spray pipe is located stirring tank with rotating component drive link, water spray pipe rotatable relative to stirring tank, water spray pipe is suitable for with outside water source intercommunication, water spray pipe is equipped with the shower nozzle, the shower nozzle is used for spraying water to the accommodation cavity to flush the accommodation cavity, the utility model discloses can drive water spray pipe relative to stirring tank rotation through rotating component, to realize the flushing of the inner chamber of stirring tank, save time and labour, and the washing efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of fracturing fluid mixing technology, and in particular to a fracturing fluid mixing and stirring device. Background Technology

[0002] Fracturing fluid is usually formed by mixing base fluid, thickener, anti-swelling agent, crosslinking agent, etc. The mixing process requires adding different raw materials into the mixing equipment in a preset order for mixing. Since fracturing fluid has a certain viscosity, it is easy to adhere to the wall of the mixing tank after mixing. Therefore, the mixing equipment needs to be rinsed in time after use to prevent the fracturing fluid from hardening and being difficult to remove, thus affecting the reuse of the mixing equipment.

[0003] Therefore, in related technologies, after the fracturing fluid is mixed and discharged by the mixing equipment, the inner cavity of the mixing tank is usually flushed manually using a flushing pipe. However, this flushing method is not only time-consuming and labor-intensive, but also has low flushing efficiency. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of this utility model propose a fracturing fluid mixing and stirring device. This fracturing fluid mixing and stirring device can drive the water spray pipe to rotate relative to the mixing tank through a rotating component, so as to achieve flushing of the inner cavity of the mixing tank, which saves time and effort and has high flushing efficiency.

[0006] A fracturing fluid mixing and stirring device according to an embodiment of the present invention includes a mixing tank, a water spray pipe, and a rotating assembly. The mixing tank has a receiving cavity for containing fracturing fluid mixtures. The water spray pipe is disposed in the mixing tank and is throttle-connected to the rotating assembly. The water spray pipe is rotatable relative to the mixing tank. The water spray pipe is adapted to communicate with an external water source. The water spray pipe is provided with a nozzle for spraying water toward the receiving cavity to rinse the receiving cavity.

[0007] According to the fracturing fluid mixing and stirring device of this utility model embodiment, a water spray pipe is integrated on the mixing tank. An external water source can be connected to the water spray pipe to supply water to the water spray pipe. When the water spray pipe is driven to rotate relative to the mixing tank by the rotating component, the nozzle can spray water towards the receiving cavity to rinse the receiving cavity. Therefore, the cleaning operation of the mixing tank can be completed in a timely manner without manual operation of the water spray pipe. Therefore, compared with related technologies, this utility model can drive the water spray pipe to rotate relative to the mixing tank through the rotating component to achieve rinsing of the inner cavity of the mixing tank, which saves time and effort and has high rinsing efficiency.

[0008] In some embodiments, the mixing tank includes a tank body, a tank cover, and a stirring rod. The tank body has a receiving cavity with a top opening and a discharge port that communicates with the receiving cavity. The tank cover is disposed on the top of the tank body to cover the receiving cavity. At least a portion of the stirring rod is disposed in the receiving cavity and is rotatable relative to the receiving cavity.

[0009] In some embodiments, the mixing tank further includes a first motor, which is disposed on the tank cover and is throttle-connected to the stirring rod.

[0010] In some embodiments, the mixing tank further includes a support ring, which is disposed adjacent to the top of the tank body, and a limiting structure is provided between the support ring and the tank cover;

[0011] The limiting structure includes a limiting post and a limiting hole, one of which is provided on the support ring and the other is provided on the can lid.

[0012] In some embodiments, the nozzles are at least two and are spaced apart on one side of the water spray pipe adjacent to the receiving cavity;

[0013] The spray directions of any two of the nozzles intersect.

[0014] In some embodiments, the mixing and stirring device further includes a rotating shaft connected to the water spray pipe, one end of the rotating shaft opposite to the water spray pipe being rotatably connected to the mixing tank, and the direction of the pivot axis of the water spray pipe being orthogonal to the vertical direction and the axial direction of the water spray pipe.

[0015] The rotating shaft and the rotating assembly are arranged at intervals along the axial direction of the water spray pipe. The rotating assembly is located in the mixing tank and can push and pull the water spray pipe in the vertical direction.

[0016] In some embodiments, the rotating assembly includes a telescopic cylinder and a lever. The cylinder body of the telescopic cylinder is connected to the mixing tank. The piston rod of the telescopic cylinder is connected to the lever to push and pull the lever in the up-down direction. One end of the lever opposite to the piston rod of the telescopic cylinder is slidably connected to the water spray pipe along the axial direction of the water spray pipe.

[0017] In some embodiments, the outer peripheral surface of the portion of the water spray pipe facing away from the rotating shaft is provided with a sliding groove, and the end of the lever facing away from the piston rod of the telescopic cylinder is provided with a slider, the slider and the sliding groove being slidably connected along the axial direction of the water spray pipe;

[0018] There is at least one pair of sliding grooves, and the two pairs of sliding grooves are mirror-symmetrical with respect to the reference plane. The reference plane is parallel to the axis of the water spray pipe, and the center of the water spray pipe is coplanar with the reference plane. There is at least one pair of sliders, and at least one pair of sliders corresponds one-to-one with at least one pair of sliding grooves.

[0019] In some embodiments, the mixing and stirring device further includes a support base located below the mixing tank, the mixing tank being disposed on the support base and rotatable relative to the support base.

[0020] In some embodiments, the mixing and stirring device further includes a second motor, a gear, and a gear ring. The second motor is disposed on the support base and is connected to the gear for transmission. The gear ring is sleeved on the outer circumferential surface of the mixing tank, and the gear meshes with the gear ring to drive the mixing tank to rotate relative to the support base.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a first-view structural schematic diagram of the fracturing fluid mixing and stirring device according to an embodiment of the present invention.

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0024] Figure 3 This is a second-view structural schematic diagram of the fracturing fluid mixing and stirring device according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the fracturing fluid mixing and stirring device according to an embodiment of the present invention, with the tank cover removed.

[0026] Figure 5 yes Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0027] Figure 6 This is a top view of the fracturing fluid mixing and stirring device according to an embodiment of the present invention (the tank cover, stirring rod and first motor have been removed from the figure).

[0028] Figure label:

[0029] 1. Mixing tank; 11. Receiving cavity; 12. Tank body; 121. Discharge port; 13. Tank cover; 131. Feed hole; 14. Mixing rod; 141. Rod body; 142. Mixing blade; 15. First motor; 16. Support ring; 161. Through groove;

[0030] 2. Water spray pipe; 21. Sprinkler head; 22. Slide rail;

[0031] 3. Rotating assembly; 31. Telescopic cylinder; 32. Lever; 321. Slider; 322. First segment; 323. Connecting segment; 324. Second segment;

[0032] 4. Limiting structure; 41. Limiting post; 42. Limiting hole;

[0033] 5. Shaft;

[0034] 6. Support base; 61. Base body; 62. Support legs;

[0035] 7. Second motor;

[0036] 8. Gears;

[0037] 9. Gear ring; 91. Connecting rod. Detailed Implementation

[0038] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] like Figures 1 to 4 As shown in the figure, a fracturing fluid mixing and stirring device according to an embodiment of the present invention includes a mixing tank 1, a water spray pipe 2, and a rotating assembly 3. The mixing tank 1 has a receiving cavity 11 for containing fracturing fluid mixtures. The water spray pipe 2 is disposed in the mixing tank 1 and is connected to the rotating assembly 3. The water spray pipe 2 is rotatable relative to the mixing tank 1. The water spray pipe 2 is adapted to be connected to an external water source. The water spray pipe 2 is provided with a nozzle 21, which is used to spray water toward the receiving cavity 11 to rinse the receiving cavity 11.

[0040] According to the fracturing fluid mixing and stirring device of this utility model embodiment, a water spray pipe 2 is integrated on the mixing tank 1. An external water source can be connected to the water spray pipe 2 to supply water to the water spray pipe 2. When the water spray pipe 2 is driven by the rotating component 3 to rotate relative to the mixing tank 1, the nozzle 21 can spray water towards the receiving cavity 11 to rinse the receiving cavity 11. Therefore, the cleaning operation of the mixing tank 1 can be completed in a timely manner without manual operation of the water spray pipe 2. Therefore, compared with related technologies, this utility model can drive the water spray pipe 2 to rotate relative to the mixing tank 1 through the rotating component 3 to achieve rinsing of the inner cavity of the mixing tank 1, which saves time and effort and has high rinsing efficiency.

[0041] It should be noted that the role of fracturing fluid is to transfer high-pressure energy, causing fractures in the formation and transporting proppant along the fractures. The proppant then fills the fractured fractures to support the fracture surface, thereby forming a stable production channel.

[0042] Furthermore, the receiving cavity 11 is the inner cavity of the mixing tank 1. To clean the inner wall of the mixing tank 1, it is usually necessary to manually adjust the angle of the water spray pipe 2 continuously, which is labor-intensive. However, this invention directly integrates the water spray pipe 2 onto the mixing tank 1, and the rotating component 3 drives the water spray pipe 2 to rotate relative to the mixing tank 1 to rinse the receiving cavity 11, which improves rinsing efficiency and saves labor costs.

[0043] like Figures 1 to 4 As shown, in some embodiments, the mixing tank 1 includes a tank body 12, a tank cover 13, and a stirring rod 14. The tank body 12 has a receiving cavity 11 with a top opening and a discharge port 121 connected to the receiving cavity 11. The tank cover 13 is disposed on the top of the tank body 12 to cover the receiving cavity 11. At least a portion of the stirring rod 14 is disposed in the receiving cavity 11 and is rotatable relative to the receiving cavity 11.

[0044] It is understandable that the stirring rod 14 can rotate within the receiving cavity 11 to stir and mix the mixed materials placed in the receiving cavity 11 of the tank 12, so as to obtain a well-mixed fracturing fluid.

[0045] Specifically, the tank body 12 can extend vertically. The outlet 121 can be located at the bottom of the tank body 12 to facilitate the smooth discharge of the mixed fracturing fluid into the containment cavity 11 under gravity. A feed hole 131 can be provided on the tank cover 13, connecting to the containment cavity 11. Multiple feed holes 131 can be provided and spaced apart to allow different raw materials to be added into the containment cavity 11 in a preset order for mixing. The pivot axis of the stirring rod 14 can be vertical. The stirring rod 14 can include a rod body 141 and stirring blades 142. Stirring blades 142 are provided on the outer circumferential surface of the portion of the rod body 141 located in the containment cavity 11. The rod body 141 can extend vertically and is coaxially arranged with the tank body 12. Multiple stirring blades 142 can be provided and spaced apart along the axial direction of the rod body 141 to ensure effective mixing of the materials in the containment cavity 11 and further improve the uniformity of the mixture.

[0046] like Figures 1 to 4 As shown, in some embodiments, the mixing tank 1 further includes a first motor 15, which is located on the tank cover 13 and is connected to the stirring rod 14 for transmission, so that the stirring rod 14 is automatically rotated by the first motor 15, thereby further improving the automation performance of the mixing device and improving the mixing efficiency and uniformity of fracturing fluid.

[0047] Specifically, the first motor 15 can be fixed to the top of the tank lid 13. The motor shaft of the first motor 15 can be connected to the top of the stirring rod 14, such as by a coupling, so that the first motor 15 can drive the stirring rod 14 to rotate relative to the receiving cavity 11.

[0048] like Figures 1 to 6 As shown, in some embodiments, the mixing tank 1 further includes a support ring 16, which is arranged near the top of the tank body 12, and a limiting structure 4 is provided between the support ring 16 and the tank cover 13.

[0049] The limiting structure 4 includes a limiting post 41 and a limiting hole 42. One of the limiting post 41 and the limiting hole 42 is provided on the support ring 16, and the other is provided on the can cover 13.

[0050] It is understandable that by adopting the limiting structure 4, when the lid 13 is sealed to the top of the tank body 12, the limiting post 41 can be inserted into the limiting hole 42 to prevent the lid 13 from rotating on the tank body 12, thereby improving the stability of the lid 13 during the rotation of the stirring rod 14 and ensuring the reliable covering of the lid 13 on the tank body 12.

[0051] Specifically, the support ring 16 can be coaxially disposed on the top of the tank body 12. Both the limiting post 41 and the limiting hole 42 can extend in the vertical direction.

[0052] The support ring 16 may be provided with a limiting post 41, and the can lid 13 may be provided with a limiting hole 42; or, the support ring 16 may be provided with a limiting hole 42, and the can lid 13 may be provided with a limiting post 41. For example, the inner circumferential surface of the support ring 16 may be provided with a support block, the top of the support block may be provided with a limiting post 41, and the can lid 13 may be provided with a limiting hole 42 that matches the limiting post 41. Of course, other structures that can realize the limiting post 41 on the support ring 16 are also possible (for example, the limiting post 41 is fixed to the top of the support ring 16), as long as the insertion assembly between the upper limiting post 41 of the support ring 16 and the upper limiting hole 42 of the can lid 13 can be realized, which will not be elaborated on here.

[0053] Furthermore, there are multiple limiting posts 41 arranged at intervals along the circumference of the tank body 12, and multiple limiting holes 42 corresponding to the limiting posts 41 one by one, so that the multiple limiting posts 41 and limiting holes 42 cooperate to further ensure the reliable covering of the tank cover 13 on the tank body 12.

[0054] like Figure 1 and Figure 2 As shown, in some embodiments, the support ring 16 is provided with a through groove 161 extending radially therein, the water spray pipe 2 is disposed in the through groove 161 and is rotatable relative to the through groove 161, the axial direction of the water spray pipe 2 is consistent with the extension direction of the through groove 161, and the rotating assembly 3 is mounted on the support ring 16.

[0055] It is understandable that by placing the water spray pipe 2 in the through groove 161 of the support ring 16, compared to the method of installing the water spray pipe 2 by opening an installation hole on the tank body 12, the water spray pipe 2 can be integrated on the mixing tank 1 without changing the structure of the tank body 12 itself, without causing damage to the tank body 12, and ensuring the working performance of the tank body 12.

[0056] Specifically, the radial direction of the tank body 12, the radial direction of the support ring 16, the extension direction of the through groove 161, and the axial direction of the spray pipe 2 can all be consistent. The through groove 161 extends radially along the support ring 16; in other words, the through groove 161 penetrates the support ring 16 in the thickness direction. The spray pipe 2 can swing up and down or swing in a first direction within the through groove 161, the first direction being orthogonal to the vertical direction and the axial direction of the spray pipe 2.

[0057] like Figures 4 to 6 As shown, in some embodiments, there are at least two nozzles 21 arranged at intervals on one side of the water spray pipe 2 adjacent to the receiving cavity 11, which is beneficial for the nozzles 21 to rinse the receiving cavity 11; the spraying directions of any two nozzles 21 intersect, in other words, the spraying directions of multiple nozzles 21 are not the same, so that the water spray pipe 2 can spray water in multiple directions, thereby improving the cleaning effect.

[0058] like Figures 4 to 6 As shown, in some embodiments, the mixing and stirring device further includes a rotating shaft 5, which is connected to a water spray pipe 2. One end of the rotating shaft 5 away from the water spray pipe 2 is rotatably connected to the mixing tank 1. The direction of the pivot axis of the water spray pipe 2 is orthogonal to the vertical direction and the axial direction of the water spray pipe 2. The direction of the pivot axis of the water spray pipe 2 is the first direction mentioned above.

[0059] The rotating shaft 5 and the rotating assembly 3 are arranged at intervals along the axial direction of the water spray pipe 2. The rotating assembly 3 is located in the mixing tank 1 and can push and pull the water spray pipe 2 in the up and down direction.

[0060] It is understandable that, since the pivot axis of the water spray pipe 2 is orthogonal to the vertical direction and the axial direction of the water spray pipe 2, the water spray pipe 2 can be made to swing up and down under the action of the rotating component 3, so as to achieve the flushing of the receiving cavity 11.

[0061] For example, as shown in the figure, the water spray pipe 2 can be hinged to the through groove 161 via the rotating shaft 5. In other words, the end of the rotating shaft 5 away from the water spray pipe 2 can be hinged to the inner wall of the through groove 161, so that the water spray pipe 2 can rotate relative to the through groove 161. The rotating component 3 is provided on the support ring 16 and can push and pull the water spray pipe 2 in the up and down direction.

[0062] like Figures 4 to 6 As shown, in some embodiments, the rotating assembly 3 includes a telescopic cylinder 31 and a lever 32. The cylinder body of the telescopic cylinder 31 is connected to the mixing tank 1. The piston rod of the telescopic cylinder 31 is connected to the lever 32 to push and pull the lever 32 in the up-down direction. One end of the lever 32 away from the piston rod of the telescopic cylinder 31 is slidably connected to the water spray pipe 2 along the axial direction of the water spray pipe 2, so that the lever 32 pulls the water spray pipe 2 to swing relative to the receiving cavity 11 in the up-down direction.

[0063] Specifically, the telescopic cylinder 31 is not limited to one of the following: electric cylinder, hydraulic cylinder, pneumatic cylinder, and oil cylinder. When the piston rod of the telescopic cylinder 31 is fully retracted, the water spray pipe 2 is in a horizontal state, preventing water in the water spray pipe 2 from spraying out of the tank body 12. When the piston rod of the telescopic cylinder 31 is fully extended, the nozzle 21 (i.e., the water outlet) of the water spray pipe 2 rotates downward by a preset angle. This angle can be specifically set to rotate the water spray pipe 2 to face the discharge port 121 of the tank body 12. For example, as shown in the figure, the cylinder body of the telescopic cylinder 31 can be connected to the support ring 16.

[0064] like Figures 1 to 6 As shown, in some embodiments, the outer peripheral surface of the water spray pipe 2 away from the rotating shaft 5 is provided with a groove 22, and the end of the lever 32 away from the piston rod of the telescopic cylinder 31 is provided with a slider 321. The slider 321 and the groove 22 are slidably connected along the axial direction of the water spray pipe 2.

[0065] It is understandable that the telescopic cylinder 31 can push and pull the lever 32 to extend and retract in the vertical direction. Since the slider 321 and the slide groove 22 are slidably connected along the axial direction of the water spray pipe 2, during the process of the telescopic cylinder 31 driving the lever 32 to move up and down, the slider 321 will act on the water spray pipe 2 through the slide groove 22 to pull the water spray pipe 2 to swing in the vertical direction relative to the receiving cavity 11.

[0066] Specifically, the groove 22 can extend along the axial direction of the water spray pipe 2. The slider 321 is not limited to a sliding column, so as to ensure smooth sliding of the slider 321 within the groove 22.

[0067] Furthermore, there is at least one pair of slide grooves 22, and the two pairs of slide grooves 22 are mirror-symmetrical with respect to the reference plane. The reference plane is parallel to the axis of the water spray pipe 2, and the center of the water spray pipe 2 is coplanar with the reference plane. There is at least one pair of sliders 321, and at least one pair of sliders 321 corresponds one-to-one with at least one pair of slide grooves 22 to ensure that the lever 32 can pull the water spray pipe 2 to swing smoothly in the up and down direction.

[0068] Specifically, the lever 32 can be a U-shaped lever, which includes a first segment 322, a connecting segment 323, and a second segment 324 connected in sequence. The first segment 322 and the second segment 324 extend in the vertical direction, and each of the first segment 322 and the second segment 324 has a slider 321 at the end away from the connecting segment 323. The connecting segment 323 is connected to the piston rod of the telescopic cylinder 31.

[0069] like Figure 1 As shown, in some embodiments, the mixing and stirring device further includes a support base 6, which is located below the mixing tank 1. The mixing tank 1 is disposed on the support base 6 and is rotatable relative to the support base 6.

[0070] It is understandable that when the water spray pipe 2 swings up and down to rinse the receiving cavity 11 of the tank body 12, the tank body 12 can rotate relative to the support base 6 to construct a three-dimensional rinsing system in space, which effectively improves the cleaning effect on the mixing tank 1. Furthermore, during the mixing process of the stirring rod 14, the tank body 12 can also rotate relative to the support base 6 to further improve the uniformity of the fracturing fluid mixing.

[0071] Specifically, the tank body 12 is rotatably connected to the support base 6. The support base 6 may include a connected base 61 and legs 62, with multiple legs 62 located at the bottom of the base 61 and arranged at intervals.

[0072] like Figures 1 to 3 As shown, in some embodiments, the mixing and stirring device further includes a second motor 7, a gear 8, and a gear ring 9. The second motor 7 is located on the support base 6 and is connected to the gear 8 for transmission. The gear ring 9 is sleeved on the outer circumferential surface of the mixing tank 1, and the gear 8 meshes with the gear ring 9 to drive the mixing tank 1 to rotate relative to the support base 6.

[0073] Understandably, the automatic rotation drive structure of the tank 12 is formed by the cooperation of the second motor 7, gear 8 and gear ring 9, which further improves the automation performance of the mixing and stirring device. It can achieve good cleaning of the inner cavity of the mixing tank 1 without the need for manual rotation of the tank 12.

[0074] like Figures 1 to 3 As shown, in some embodiments, the support 6 has a receiving cavity with a top opening, and at least a portion of the mixing tank 1 is fitted into the receiving cavity to effectively ensure the rotational stability of the mixing tank 1 on the support 6 and prevent it from tipping over.

[0075] Specifically, at least a portion of the tank 12 fits into the receiving cavity.

[0076] like Figure 3 As shown, in some embodiments, the mixing and stirring device may further include a connecting rod 91, which is connected to the support base 6. One end of the connecting rod 91 away from the support base 6 is connected to the support ring 16. There are multiple connecting rods 91 and they are arranged at intervals along the circumference of the tank 12 so that the support ring 16 is reliably supported above the adjacent tank 12 by the connecting rods 91.

[0077] The working process of this fracturing fluid mixing and stirring device will now be described in detail, based on its specific structure:

[0078] 1) Fracturing fluid feedstock is fed into the receiving cavity 11 through the feed port 131;

[0079] 2) Control the first motor 15 to drive the stirring rod 14 to rotate, so as to stir and mix the raw materials and discharge them from the discharge port 121;

[0080] 3) Water is supplied to the spray pipe 2 by an external water source, and the telescopic cylinder 31 is controlled to push and pull the lever 32 to extend and retract in the vertical direction, so that the slider 321 acts on the slide groove 22 to drive the spray pipe 2 to swing back and forth in the vertical direction. At the same time, the first motor 15 is controlled to drive the stirring rod 14 to rotate, so as to achieve the rinsing of the stirring rod 14.

[0081] 4) After that, turn off the first motor 15 and the telescopic cylinder 31, control the external water source to stop supplying water to the water spray pipe 2, and take out the stirring rod 14;

[0082] 5) The second motor 7 drives the gear 8 to rotate, so that the gear 8 meshes with the transmission gear ring 9, thereby driving the tank 12 to rotate on the support seat 6. At the same time, the external water source is controlled to supply water to the spray pipe 2, so that the telescopic cylinder 31 pushes and pulls the lever 32 to extend and retract in the vertical direction, thereby realizing the flushing of the inner cavity of the mixing tank 1 (i.e., the receiving cavity 11).

[0083] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0085] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0086] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0087] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A fracturing fluid mixing and stirring device, characterized in that, include: A mixing tank having a receiving cavity for containing fracturing fluid mixtures; A water spray pipe and a rotating assembly are provided. The water spray pipe is located in the mixing tank and is throttle-connected to the rotating assembly. The water spray pipe is rotatable relative to the mixing tank. The water spray pipe is adapted to be connected to an external water source. The water spray pipe is provided with a nozzle for spraying water toward the receiving cavity to rinse the receiving cavity.

2. The fracturing fluid mixing and stirring device according to claim 1, characterized in that, The mixing tank includes: A tank body and a tank lid, wherein the tank body has a receiving cavity with a top opening and a discharge port that communicates with the receiving cavity, and the tank lid is disposed on the top of the tank body to cover the receiving cavity; A stirring rod, at least a portion of which is disposed in the receiving cavity and is rotatable relative to the receiving cavity.

3. The fracturing fluid mixing and stirring device according to claim 2, characterized in that, The mixing tank also includes a first motor, which is located on the tank cover and is connected to the stirring rod in a driving manner.

4. The fracturing fluid mixing and stirring device according to claim 2, characterized in that, The mixing tank also includes a support ring, which is arranged near the top of the tank body, and a limiting structure is provided between the support ring and the tank cover; The limiting structure includes a limiting post and a limiting hole, one of which is provided on the support ring and the other is provided on the can lid.

5. The fracturing fluid mixing and stirring device according to claim 1, characterized in that, The nozzles are at least two and are spaced apart on one side of the water spray pipe adjacent to the receiving cavity; The spray directions of any two of the nozzles intersect.

6. The fracturing fluid mixing and stirring device according to claim 1, characterized in that, It also includes a rotating shaft connected to the water spray pipe, with one end of the rotating shaft facing away from the water spray pipe rotatably connected to the mixing tank, and the direction of the pivot axis of the water spray pipe being orthogonal to the vertical direction and the axial direction of the water spray pipe. The rotating shaft and the rotating assembly are arranged at intervals along the axial direction of the water spray pipe. The rotating assembly is located in the mixing tank and can push and pull the water spray pipe in the vertical direction.

7. The fracturing fluid mixing and stirring device according to claim 6, characterized in that, The rotating assembly includes: A telescopic cylinder, the cylinder body of which is connected to the mixing tank; A lever is provided, and the piston rod of the telescopic cylinder is connected to the lever to push and pull the lever in the up-down direction. One end of the lever away from the piston rod of the telescopic cylinder is slidably connected to the water spray pipe along the axial direction of the water spray pipe.

8. The fracturing fluid mixing and stirring device according to claim 7, characterized in that, The outer circumferential surface of the water spray pipe opposite to the rotating shaft is provided with a sliding groove, and the end of the lever opposite to the piston rod of the telescopic cylinder is provided with a slider. The slider and the sliding groove are slidably connected along the axial direction of the water spray pipe. There is at least one pair of sliding grooves, and the two pairs of sliding grooves are mirror-symmetrical with respect to the reference plane. The reference plane is parallel to the axis of the water spray pipe, and the center of the water spray pipe is coplanar with the reference plane. There is at least one pair of sliders, and at least one pair of sliders corresponds one-to-one with at least one pair of sliding grooves.

9. The fracturing fluid mixing and stirring device according to claim 1, characterized in that, It also includes a support base located below the mixing tank, the mixing tank being disposed on the support base and rotatable relative to the support base.

10. The fracturing fluid mixing and stirring device according to claim 9, characterized in that, Also includes: A second motor and a gear, wherein the second motor is mounted on the support base and is connected to the gear transmission; A gear ring is fitted onto the outer circumferential surface of the mixing tank, and the gear meshes with the gear ring to drive the mixing tank to rotate relative to the support base.

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