Mixing and stirring device

Abstract

The utility model provides a mixing and stirring device which comprises a pile casing, a circulating sleeve concentrically arranged in the pile casing and a power mechanism, the power mechanism comprises a driving piece arranged at the top end of the pile casing and an inlet manifold arranged at the first end of the driving piece, and the inlet manifold is arranged at the second end of the pile casing. And the liquid outlet pipe is arranged at the second end of the driving part and extends and penetrates into the circulating sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stirring device in well repair operation, concretely relates to a mixed stirring device. BACKGROUND

[0002] At present, in the downhole operation process, the well killing fluid often needs to increase the viscosity or increase the density, and the well killing fluid needs to add calcium chloride, tackifier and other additives, and the dissolution of these additives needs sufficient stirring.

[0003] In the downhole operation process, the positive injection, reverse injection, liquid replacement and other operations need to run the skid-mounted diesel pump for a long time, the return fluid generated by these operations flows into the circulating tank, the flow can reach 35-45m 3 / h, and contains considerable energy, which is a good driving energy if recycled. In addition, in the well repair site, oil and gas are often exposed and dispersed, and fire and explosion prevention is necessary for well repair operation, and the equipment used has high explosion-proof requirements, and explosion-proof and intrinsic safety type equipment must be used.

[0004] However, the prior art has the following problems: first, the circulating tank of the overhaul team is equipped with a fixed explosion-proof electric stirrer, but the motor, distribution box and distribution line are generally aged and not properly maintained, and often cannot meet the explosion-proof requirements; second, the equipment of the minor repair team is simple, and the circulating tank is generally not equipped with a fixed explosion-proof electric stirrer, and the well killing fluid is often prepared in only two ways, one is to add additives and then use a diesel pump to circulate in the circulating tank to dissolve the additives, and the quality of the well killing fluid prepared by this method is not high, and the powdery and granular additives are easy to coagulate into blocks, which not only wastes materials but also cannot achieve the expected effect, and the other method is manual mixing and stirring, which is low in efficiency and consumes a lot of manpower.

[0005] Therefore, it is desirable in the art to provide a mixed stirring device to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a mixed stirring device, which can use water power as a power source, i.e. recycling the return fluid generated by the positive and reverse injection, liquid replacement and other operations as a power source, thereby sequentially driving the water turbine and the propeller to complete the mixing, stirring and dissolution.

[0007] According to the utility model, a mixed stirring device is provided, which comprises a casing,

[0008] a circulating sleeve concentrically arranged in the casing, and

[0009] A power mechanism comprises a driving member arranged at a top end of the casing, an inlet manifold arranged at a first end of the driving member, and an outlet pipe arranged at a second end of the driving member and extending into the circulating sleeve.

[0010] In one embodiment, the inlet manifold is configured in a Y-shaped structure and comprises a first port for entering liquid and a second port for entering material, the liquid generating negative pressure when passing through the first port so as to be able to suck the material into through the second port.

[0011] In one embodiment, a hydraulic turbine is arranged in the driving member, and the liquid and the material can form a mixed material under the action of the hydraulic turbine.

[0012] In one embodiment, the power mechanism further comprises a shaft coupling adapted to the hydraulic turbine, and a propeller extending outward from the shaft coupling and into the circulating sleeve, the propeller being driven by the shaft coupling and the hydraulic turbine.

[0013] In one embodiment, the shaft coupling is configured as an explosion-proof shaft coupling.

[0014] In one embodiment, the hydraulic turbine is configured as an explosion-proof hydraulic turbine.

[0015] In one embodiment, a diversion base configured in a conical form and used for dispersing the mixed material to the periphery is arranged at a bottom of the casing.

[0016] In one embodiment, the length of the circulating sleeve is smaller than the length of the casing, thereby allowing the mixed material to flow from the circulating sleeve to the casing.

[0017] In one embodiment, a filter screen is arranged on a side wall of the casing, and the fully dissolved mixed material is discharged through the filter screen, and the insufficiently dissolved mixed material ascends in the annulus between the casing and the circulating sleeve.

[0018] In one embodiment, a plurality of through holes are arranged on an inner wall of an upper portion of the circulating sleeve and allow the insufficiently dissolved mixed material to enter.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] Firstly, the utility model uses water power as a power source, i.e. recycling the backflow of liquid generated by positive and negative injection and replacement of liquid as a power source, thereby sequentially driving the hydraulic turbine and the propeller to complete the work of mixing, stirring and dissolving. The flow rate of the part of fluid is usually 35-453 / h, thereby being able to bring 8-10m / s linear velocity to the outer edge of the blade of the hydraulic turbine and being able to provide sufficient kinetic energy for the propeller.

[0021] At the same time, the liquid generates negative pressure when passing through the first port, thereby generating suction force on the material to allow the material to smoothly enter into the inlet manifold through the second port. Therefore, in this way, the effect of uniform addition can be realized while saving manpower. In addition, since the device uses water power as a power source, it can be more easily adapted to the case where there is no electric mixer or no electricity at the well site.

[0022] Secondly, since the well repair site is often accompanied by exposure and dispersion of oil and gas, the coupling in the utility model adopts an explosion-proof coupling, and the water turbine in the utility model adopts an explosion-proof water turbine. In this way, the safety and stability of the device during operation can be effectively ensured.

[0023] Thirdly, the utility model can selectively pass the mixed material through the filter screen to ensure that the discharged mixed material can meet the use requirements. In addition, the mixed material that is not fully dissolved also rises in the annular chamber of the casing and the circulating sleeve and enters the circulating sleeve through the through hole to re-mix, stir and dissolve until the mixed material meets the discharge requirements of the filter screen. BRIEF DESCRIPTION OF DRAWINGS

[0024] The utility model will be described in detail below in combination with the drawings, in which:

[0025] Figure 1 The structure of the mixing and stirring device according to the utility model is schematically shown.

[0026] In the drawings, the same components use the same reference numerals. The drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0027] In order to make the technical scheme and advantages of the utility model clearer and more apparent, the exemplary embodiments of the utility model will be further described in detail below in combination with the drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, not an exhaustive enumeration of all embodiments. And in the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0028] The utility model will be further described below in combination with the drawings.

[0029] Figure 1 The structure of the mixing and stirring device 100 according to the utility model is schematically shown.

[0030] As Figure 1As shown, the mixing and stirring device 100 according to the utility model mainly comprises a casing 11, a circulating sleeve 12 concentrically arranged in the casing 11, and a power mechanism, preferably, the power mechanism comprises a driving member, an inlet manifold, a liquid outlet pipe 23 and a propeller 15.

[0031] In an embodiment of the utility model, the driving member is configured in a three-way structure, the first end of the driving member is connected with the inlet manifold, the second end of the driving member is connected with the liquid outlet pipe 23, and the third end of the driving member is connected with the propeller 15 through a shaft coupling 13.

[0032] In an embodiment, the inlet manifold is configured in a Y-shaped structure, and the inlet manifold comprises a first port 21 configured in a linear type, which is used for guiding liquid (flow rate 35-45 m 3 / h) to flow in; the inlet manifold comprises a second port 22 arranged in an inclined manner, which is used for guiding materials to enter. Preferably, the first port 21 and the second port 22 converge together.

[0033] In the utility model, when the liquid passes through the first port 21, negative pressure is generated, thereby generating adsorption force on the materials, so as to allow the materials to smoothly enter into the inlet manifold through the second port 22.

[0034] In an embodiment, as Figure 1 shown, a hydraulic turbine 14 is arranged in the driving member. Preferably, the liquid entering through the first port 21 and the materials entering through the second port 22 are effectively mixed at the hydraulic turbine 14, thereby forming mixed materials.

[0035] Preferably, the liquid outlet pipe 23 is arranged in a longitudinal direction, and the liquid outlet pipe 23 can extend into the circulating sleeve 12, thereby being capable of smoothly injecting the formed mixed materials into the circulating sleeve 12 to facilitate subsequent stirring work.

[0036] In the utility model, the propeller 15 is arranged in a longitudinal direction, and the propeller 15 can extend into the circulating sleeve 12. Preferably, the propeller 15 is connected with the hydraulic turbine 14 through the shaft coupling 13, thereby the high-speed liquid can drive the hydraulic turbine 14 to rotate, so as to further drive the propeller 15 to rotate and push the mixed materials to flow downward, so as to fully utilize the driving force of the liquid.

[0037] In addition, after the mixed materials are discharged through the liquid outlet pipe 23, the mixed materials can be absorbed by the propeller 15, thereby completing the work of mixing, stirring and dissolving.

[0038] The present invention uses hydraulic power as its power source. In other words, it recycles the return flow generated by forward and reverse injection, fluid displacement, and other operations as its power source. The flow rate of this fluid is typically 35-453 m / h, which can bring a linear velocity of 8-10 m / s to the outer edge of the blades of the hydraulic turbine 14, thereby providing sufficient kinetic energy for the propeller 15.

[0039] Preferably, since the device uses hydraulic power as a power source, it is suitable for use in situations where there is no electric mixer or no electricity at the well site.

[0040] Since well repair sites are often accompanied by exposure and spillage of oil and gas, the coupling 13 in the present invention is an explosion-proof coupling, and the hydraulic turbine 14 in the present invention is an explosion-proof hydraulic turbine. This effectively ensures the safety and stability of the device during operation.

[0041] In one embodiment, Figure 1 As shown, a diverter base 16 is provided at the bottom of the casing 11. Preferably, the diverter base 16 is configured in a conical form so that it can disperse the mixed material pushed downward by the propeller 15 to the surroundings, thereby facilitating subsequent filtration through a filter screen 111 (described below).

[0042] In the present invention, because the length of the circulation sleeve 12 is shorter than that of the casing 11, the mixed material flowing downward within the circulation sleeve 12 can be dispersed around the diverter base 16, thereby contacting the filter screen 111 (described below) on the casing 11. Mixed materials with different solubility levels can then selectively pass through the filter screen 111, ensuring that the discharged mixed material meets the requirements for use.

[0043] In one embodiment of the present invention, Figure 1 As shown, a filter screen 111 is provided on the side wall of the casing 11. Preferably, the filter screen 111 is arranged circumferentially around the casing 11, so that the mixed material can selectively pass through the filter screen 111.

[0044] In other words, fully dissolved mixed materials can be discharged outward through the filter screen 111 , while incompletely dissolved mixed materials will be blocked by the filter screen 111 and thus change their flow direction, that is, upward along the annulus between the casing 11 and the circulation sleeve 12 .

[0045] In one embodiment, Figure 1As shown, a plurality of through holes 121 are arranged at the upper inner wall of the circulating sleeve 12 and are arranged in axial and circumferential intervals. Therefore, the mixed material which is not sufficiently dissolved will go up along the annular chamber of the casing 11 and the circulating sleeve 12 and enter into the circulating sleeve 12 through the through holes 121 to perform the mixing, stirring and dissolving work again until the mixed material meets the discharge requirements of the filter screen 111.

[0046] Compared with the prior art, the utility model has the advantages that:

[0047] Firstly, the utility model takes water power as the power source, that is, taking the backflow liquid stream generated by the recycling positive and negative injection and liquid replacement as the power source to drive the water turbine 14 and the propeller 15 in sequence to complete the mixing, stirring and dissolving work. The flow of the part of the fluid is usually 35-453 / h, so that the linear speed of 8-10 m / s can be brought to the outer edge of the blade of the water turbine 14, and then sufficient kinetic energy can be provided for the propeller 15.

[0048] At the same time, the liquid generates negative pressure when passing through the first port 21, thereby generating adsorption force on the material to allow the material to enter into the inlet manifold through the second port 22 smoothly. Therefore, the uniform speed adding effect can be realized while saving labor in this way. In addition, since the device takes water power as the power source, it can be more easily adapted to the case without an electric mixer or no electricity in the well site.

[0049] Secondly, since the well repair site is often accompanied by exposure and dispersion of oil and gas, the coupling 13 in the utility model adopts an explosion-proof coupling, and the water turbine 14 in the utility model adopts an explosion-proof water turbine. In this way, the safety and stability of the device during operation can be effectively ensured.

[0050] Thirdly, the mixed material can be selectively passed through the filter screen 111 to ensure that the discharged mixed material can meet the use requirements. In addition, the mixed material which is not sufficiently dissolved also goes up in the annular chamber of the casing 11 and the circulating sleeve 12 and enters into the circulating sleeve 12 through the through holes 121 to perform the mixing, stirring and dissolving work again until the mixed material meets the discharge requirements of the filter screen 111.

[0051] In the description of the utility model, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features.

[0052] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside intercommunication.

[0053] For the ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0054] The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this.The person skilled in the art can easily change or change in the disclosed range of the utility model, and such change or change should be covered in the protection scope of the utility model.Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A mixing and stirring device, characterized in that, Comprise: a casing (11), a circulating sleeve (12) concentrically arranged in the casing (11), and a power mechanism comprising a driving member arranged at the top end of the casing (11), an inlet manifold arranged at the first end of the driving member, and an outlet pipe (23) arranged at the second end of the driving member and extending into the circulating sleeve (12).

2. The hybrid mixing device of claim 1, wherein, The inlet manifold is configured in a Y-shaped structure and comprises a first port (21) for entering liquid and a second port (22) for entering material, the liquid generating negative pressure when passing through the first port (21) so as to be able to suck the material into through the second port (22).

3. The hybrid mixing device of claim 2, wherein, A hydraulic turbine (14) is arranged in the driving member, the liquid and the material being able to form a mixed material under the action of the hydraulic turbine (14).

4. The hybrid mixing device of claim 3, wherein, The power mechanism further comprises a shaft coupling (13) matched with the hydraulic turbine (14), and a propeller (15) extending outward from the shaft coupling (13) and into the circulating sleeve (12), the propeller (15) and the shaft coupling (13) being driven by the hydraulic turbine (14).

5. The mixing and stirring device according to claim 4, characterized in that: The shaft coupling (13) is configured as an explosion-proof shaft coupling.

6. The hybrid mixing device of claim 5, wherein, The hydraulic turbine (14) is configured as an explosion-proof hydraulic turbine.

7. A hybrid mixing device according to any one of claims 3 to 5, wherein A flow distribution base (16) configured in a conical form and used for dispersing the mixed material to the periphery is arranged at the bottom of the casing (11).

8. A hybrid mixing device according to any one of claims 3 to 5, wherein The length of the circulating sleeve (12) is smaller than the length of the casing (11), thereby allowing the mixed material to flow from the circulating sleeve (12) to the casing (11).

9. The hybrid mixing device of claim 8, wherein, A filter screen (111) is arranged on the sidewall of the casing (11), the fully dissolved mixed material being discharged through the filter screen (111), and the not fully dissolved mixed material rising in the annulus between the casing (11) and the circulating sleeve (12).

10. The hybrid mixing device of claim 9, wherein, A plurality of through holes (121) allowing the not fully dissolved mixed material to enter are arranged at the inner wall of the upper portion of the circulating sleeve (12).

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