CN117380014A - Fracturing fluid mixing device - Google Patents
Fracturing fluid mixing device Download PDFInfo
- Publication number
- CN117380014A CN117380014A CN202311704311.1A CN202311704311A CN117380014A CN 117380014 A CN117380014 A CN 117380014A CN 202311704311 A CN202311704311 A CN 202311704311A CN 117380014 A CN117380014 A CN 117380014A
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- liquid
- stirring
- stirring shaft
- tank
- fracturing fluid
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- 239000012530 fluid Substances 0.000 title claims abstract description 51
- 238000003756 stirring Methods 0.000 claims abstract description 121
- 239000007788 liquid Substances 0.000 claims abstract description 103
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000011344 liquid material Substances 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims 5
- 239000007790 solid phase Substances 0.000 abstract description 17
- 239000002994 raw material Substances 0.000 abstract description 13
- 239000002245 particle Substances 0.000 abstract description 12
- 239000006185 dispersion Substances 0.000 abstract description 10
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910003480 inorganic solid Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
- B01F25/212—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers the injectors being movable, e.g. rotating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3121—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
- B01F27/2122—Hollow shafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
Abstract
The utility model provides a fracturing fluid mixing device, relates to petroleum engineering technical field, including powder hopper, stirring curing tank, liquid material storage tank, wherein, powder hopper and liquid material storage tank are connected to stirring curing tank respectively for provide the raw materials therein, the inside vertical jet nozzle that is provided with of (mixing) shaft of stirring curing tank inside, jet nozzle can take out the liquid around the (mixing) shaft to its inside and follow (mixing) shaft bottom and discharge, and jet nozzle is connected to in the liquid material storage tank; according to the invention, the jet flow spray pipe is arranged in the stirring shaft of the stirring paddle, so that solid phase particles accumulated around the stirring shaft can be sucked into the jet flow spray pipe and sprayed out through the bottom of the stirring shaft, and therefore, the solid phase particles accumulated around the stirring shaft and at the bottom of the stirring paddle are redispersed, and the overall dispersion degree of the fracturing fluid is improved.
Description
Technical Field
The invention relates to the technical field of petroleum engineering, in particular to a fracturing fluid mixing device.
Background
The fracturing construction is an important stratum reconstruction means in petroleum engineering, and the basic principle is that the prepared fracturing fluid is injected into stratum and pressurized until the stratum is broken so as to improve the yield of crude oil, generally, the use amount of the fracturing fluid is large, the preparation before the use is usually carried out on site, namely, the raw materials of the fracturing fluid are mixed on site through equipment such as a mixing vehicle or a mixing device, and the fracturing fluid for being injected into underground is prepared on site.
The conventional fracturing fluid mixing operation is carried out at a mixing station, a special mixing device is adopted for preparing the fracturing fluid, the basic structure of the mixing device can be summarized into a raw material component for adding raw materials into the mixing device and a mixing component for mixing the raw materials added into the mixing device, the conventionally adopted mixing component is a paddle stirrer, namely the conventionally adopted mixing component is arranged in a mixing tank, after the raw materials are added into the mixing tank, the raw materials are stirred to be uniform by the paddle stirrer, and compared with other mixing modes, the stirring and mixing device has the advantages of large treatment capacity and uniform mixing, and can be suitable for the mixing operation of various types of fracturing fluids and has a wide application range.
However, an important component in the fracturing fluid is a powdery preparation in solid phase particle form, the solid phase particles often have different dissolution and dispersion properties due to the surface characteristics, chemical composition and other reasons, the dispersion effect in the preparation process is different, and the components with poor dispersion properties need to be stirred for a long time, if the stirring is insufficient to cause poor dispersion of raw materials, the concentration distribution and the reaction progress degree of the fracturing fluid are easily uneven, and the performance of the fracturing fluid is further affected. In contrast, regarding the dispersion performance during solid-liquid mixing, many related papers have been made in the art for the purpose of discussion of the problem, for example, in the related literature (Gao Peng fly) on the study of concentric biaxial stirring-driven drop dispersion of light particles in viscous systems, in chapter 4 thereof, numerical simulation of the dispersion of floating particles in a stirring vessel in a stirring state was conducted, wherein it was found that, in a solution having a certain viscosity, light particles easily accumulated around the shaft of a stirring paddle and at the bottom of the stirring paddle during stirring of the stirring paddle to form a high concentration region, resulting in uneven dispersion. In the preparation system of the fracturing fluid, the solid phase in a light particle state, the liquid phase with increased viscosity after the polymer is added and the stirring by using paddles are very common materials or means, so that the problem of uneven mixing in the literature can be basically faced only by taking a powdery preparation as a raw material in the conventional fracturing fluid mixing process at present, and the mixing quality of the fracturing fluid is influenced.
Disclosure of Invention
In view of the above, in order to solve the problem that particles are accumulated in the process of stirring the fracturing fluid with the powdery preparation as the raw material by the blades during the mixing process, the invention aims to provide the fracturing fluid mixing device which can clean and transfer the particles accumulated by the blade accessories and ensure the mixing effect of the fracturing fluid with the powdery preparation as the raw material.
In order to solve at least one technical problem, the technical scheme provided by the invention is as follows:
the fracturing fluid mixing device comprises a powder hopper, a feeder, a jet mixer, a stirring curing tank, a temporary storage tank and a fluid storage tank, wherein the powder hopper is connected to the feeder, a fluid spraying end of the jet mixer is connected to a water inlet, a side pipe is connected to the feeder, and a fluid outlet of the jet mixer is connected to the stirring curing tank;
the stirring curing tank is a hollow closed tank body, the top of the stirring curing tank is provided with a powder inlet which is connected with the jet mixer, the inside of the stirring curing tank is provided with a stirrer consisting of a stirring shaft and stirring blades which are vertically arranged, and the stirring shaft passes through a sealing component arranged at the top of the stirring curing tank and is connected with the output end of a driving motor arranged outside the stirring curing tank;
the stirring shaft is provided with a through hole on the surface of a part between the sealing component and the driving motor, a jet nozzle is vertically arranged in the stirring shaft, a liquid inlet of the jet nozzle is connected to the through hole, a liquid outlet of the stirring shaft is arranged on the bottom surface of the stirring shaft, the stirring shaft is concavely provided with a containing groove around the jet nozzle at a position of the side surface of the stirring shaft lower than the through hole, the containing groove is communicated with the jet nozzle through a liquid drawing pipe arranged in the stirring shaft, and the liquid drawing pipe can be used as a side suction pipe of the jet nozzle to guide fluid in the containing groove into the jet nozzle;
the stirring shaft is also sleeved with a sealing liquid injector on the surface of the part between the sealing assembly and the driving motor, the sealing liquid injector is a hollow sealing container, the surface of the sealing liquid injector is provided with a liquid material auxiliary inlet communicated with the inside and the outside, a through hole is formed in the sealing liquid injector, and the sealing liquid injector is in sealing contact with the stirring shaft through a rotating shaft;
still be provided with liquid material main inlet on the jar body of stirring curing jar, jar body bottom is provided with the liquid export, and wherein, liquid material main inlet is parallelly connected to liquid material storage tank with liquid material pair entry, and is provided with first charge pump on the pipeline of liquid material pair entry and liquid material storage tank, is provided with the second charge pump on the pipeline of liquid material main inlet and liquid material storage tank, and liquid export is connected to the temporary storage tank.
One embodiment of the invention is that the seal assembly is a mechanical seal.
One embodiment of the invention is that the stirring and curing tank is provided with a liquid level meter for measuring the liquid level inside the stirring and curing tank.
The invention has the advantages that the liquid outlet of the jet spray pipe is provided with the one-way valve, and the flow direction of the one-way valve is vertically downward.
In one embodiment of the present invention, a liquid injection pump is provided on a connection line between the liquid outlet and the temporary storage tank.
One embodiment of the invention is that the stirring blade is a skewed-blade disk turbine blade.
The invention has the technical effects that:
according to the invention, the jet flow spray pipe is arranged in the stirring shaft of the stirring paddle, and solid phase particles accumulated around the stirring shaft can be sucked into the jet flow spray pipe and sprayed out through the bottom of the stirring shaft, so that the solid phase particles accumulated around the stirring shaft and at the bottom of the stirring paddle are redispersed, the overall dispersion degree of the fracturing fluid is improved, and the stability of the fracturing fluid is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a stirred tank vessel in accordance with the present invention;
FIG. 3 is a schematic structural view of a stirring shaft in the present invention;
FIG. 4 is a schematic view of the structure of the seal injector of the present invention;
FIG. 5 is a schematic view showing the distribution of the holding tank on the surface of the stirring shaft in the present invention;
in the figure, a 1-powder hopper, a 2-feeder, a 3-water inlet, a 4-jet mixer, a 5-stirring curing tank, a 6-liquid injection pump, a 7-temporary storage tank, an 8-liquid material storage tank, a 9-first charging pump, a 10-second charging pump, a 501-tank body, a 502-stirring shaft, a 503-stirring blade, a 504-sealing component, a 505-sealing liquid injector, a 506-driving motor, a 507-liquid layer, a 508-powder inlet, a 509-liquid material main inlet, a 510-liquid outlet, a 511-liquid material auxiliary inlet, a 512-through hole, a 513-rotating shaft sealing, a 514-jet nozzle, a 515-liquid drawing pipe, a 516-containing groove, a 517-one-way valve and a 518-liquid level gauge are shown.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Referring to fig. 1, a fracturing fluid mixing device is provided, a powder hopper 1 is connected to a feeder 2, a spraying end of a jet mixer 4 is connected to a water inlet 3, a side pipe is connected to the feeder 2, a liquid outlet of the jet mixer 4 is connected to a stirring and curing tank 5, the powder hopper 1 is used for introducing solid phase powder such as powdery polymer, inorganic solid powder and the like serving as raw materials of the fracturing fluid into the device, the powder is introduced into the jet mixer 4 through the feeder 2 after being added into the powder hopper 1, the process can be completed by self by gravity, a corresponding pump body can be arranged on the feeder 2, the solid phase powder is transferred into the jet mixer 4, the jet mixer 4 adopts a venturi-like structure, the purpose of which is to realize preliminary mixing of the powder and the liquid, so that the powder and the liquid can be conveniently transferred into a subsequent stirring and curing tank 5, therefore, the water inlet 3 is arranged on the liquid inlet of the jet mixer 4 for being connected with a water source for preparing the fracturing fluid, and the solid phase powder and the water after preliminary mixing are sprayed from a water outlet of the jet mixer 4 into the stirring and curing tank 5.
Referring to fig. 2, the stirring curing tank 5 is a hollow closed tank body, a powder inlet 508 is formed in the top of the stirring curing tank 5 and is connected with the jet mixer 4, it can be seen that solid-phase powder subjected to preliminary mixing enters the stirring curing tank 5 from the powder inlet 508, a stirrer consisting of a stirring shaft 502 and stirring blades 503 which are vertically arranged is arranged in the stirring curing tank 5, in this embodiment, a oblique blade disc turbine blade with good stirring comprehensive performance is adopted, the stirring shaft 502 passes through a sealing assembly 504 arranged at the top of the stirring curing tank 5 and is connected with the output end of a driving motor 506 arranged outside the stirring curing tank 5, and as can be seen in combination with fig. 2, the stirrer, the sealing assembly 504 and the driving motor 506 are sequentially arranged from bottom to top, the driving motor drives the stirring shaft 502 to rotate so as to drive the stirring blades 503 to rotate, and in some embodiments, the sealing assembly 504 is a mechanical seal so as to ensure the whole sealing effect of the curing tank.
Stirring shaft 502 is provided with a through hole 512 on the surface of the part between sealing assembly 504 and driving motor 506, the inside of stirring shaft 502 is also vertically provided with a jet spray pipe 514, the liquid inlet of jet spray pipe 514 is connected to through hole 512, the liquid outlet of stirring shaft 502 is arranged on the bottom surface of stirring shaft 502, stirring shaft 502 is concavely provided with a containing groove 516 as shown in fig. 5 around jet spray pipe 514 at the position that the side surface of stirring shaft 502 is lower than through hole 512, containing groove 516 is communicated with jet spray pipe 514 through a liquid suction pipe 515 arranged inside stirring shaft 502, liquid suction pipe 515 can be used as a side suction pipe of jet spray pipe 514 to guide the liquid in containing groove 516 into jet spray pipe 514 to the fluid in containing groove 516, the role of jet spray pipe 514 shown in fig. 3 is to suck the liquid in containing groove 516 into the pipe body of the liquid and spray the liquid along the bottom of stirring shaft 502, as known from the discussion of the prior art during stirring, undissolved solid phase powder is easy to distribute around the stirring shaft 502, and relatively high concentration of solid phase powder is also present at the bottom end of the stirring shaft 502, because the fracturing fluid is prepared continuously, i.e. the adding raw materials and the discharging products are performed simultaneously, the phenomenon of collecting powder is easy to lead the liquid to be discharged out of the stirring curing tank 5 without being fully mixed, thereby significantly affecting the quality of the prepared fracturing fluid, therefore, the invention sets the accommodating groove 516 on the stirring shaft 502 for accommodating the collected solid phase powder, and then the liquid is pumped into the jet spray pipe 514 by the liquid suction pipe 515, which requires the jet spray pipe 514 to generate corresponding negative pressure suction force, therefore, the structure of the jet spray pipe 514 can adopt a negative pressure structure similar to a conventional jet vacuum pump, i.e. a diameter reducing section is arranged in the jet spray pipe 514, then the outlet of the liquid suction pipe 515 is arranged near the diameter reducing section, the high-speed fluid is supplied from the outside to the jet nozzle 514, so that a negative pressure condition is formed, the liquid collected in the accommodating groove 516 is sucked into the jet nozzle 514 through the liquid suction pipe 515, and finally is sprayed out through an outlet positioned at the bottom of the jet nozzle 514, and meanwhile, solid-phase powder deposited at the bottom of the stirring shaft 502 is removed, so that a circulating flow is formed to circularly treat the solid-phase powder around the stirring shaft 502.
Referring to fig. 4, a fluid needs to be injected at a high speed in order to generate a negative pressure condition in the jet nozzle 514, and the liquid injection port of the jet nozzle 514 is a through hole 512, so that the seal injector 505 is provided for injecting the liquid at a high speed into the through hole 512, the stirring shaft 502 is further sleeved with the seal injector 505 on the surface of a part between the seal assembly 504 and the driving motor 506, the seal injector 505 is a hollow sealed container, the surface of the seal injector is provided with a liquid auxiliary inlet 511 communicated with the inside and the outside, the through hole 512 is provided inside the seal injector 505, the seal injector 505 is in contact with the stirring shaft 502 through a rotating shaft seal 513, the seal injector 505 is kept fixed relative to the stirring shaft 502, the rotating shaft seal 513 ensures that the seal injector 505 is in a sealed condition, and meanwhile, normal rotation of the stirring shaft 502 is not affected, obviously, the structure of the rotating shaft seal 513 can be a sealing structure of a common processing rotating system such as a packing seal or a mechanical seal, and the like, and the structure is not limited in particular; while the sub-fluid inlet 511 is connected to a fluid source for fracturing fluid, and directs fluid into the seal injector 505 and into the jet nozzle 514.
Referring to fig. 1 and 2, a main liquid inlet 509 is further disposed on a tank body 501 of the stirring and curing tank 5, a liquid outlet 510 is disposed at the bottom of the tank body 501 for discharging the mixed fracturing liquid, so as to form continuous mixing, wherein the main liquid inlet 509 and an auxiliary liquid inlet 511 are connected to a liquid storage tank 8 in parallel, a first charge pump 9 is disposed on a pipeline between the auxiliary liquid inlet 511 and the liquid storage tank 8, a second charge pump 10 is disposed on a pipeline between the main liquid inlet 509 and the liquid storage tank 8, the liquid outlet 510 is connected to the temporary storage tank 7, it can be seen that the main liquid inlet 509 and the auxiliary liquid inlet 511 are both connected to the stirring and curing tank 5 in parallel, and therefore, the main liquid inlet 509 and the auxiliary liquid inlet 511 are connected to the liquid storage tank 8 in parallel, the difference is that the amount of liquid introduced into the sealing liquid injector 505 through the auxiliary liquid inlet 511 is small but the speed is high, the total amount of the liquid introduced into the liquid storage tank 8 through the main liquid inlet 511 is larger, and therefore, the flow of the main liquid inlet 509 and the liquid storage tank 8 is controlled through the first charge pump 9 and the second charge pump 10 respectively, and the flow of the two liquid pumps can be controlled respectively, namely, the flow of the two coarse liquid pumps can be limited according to the flow rates are also set through the two coarse flow tables.
In this embodiment, the stirring and curing tank 5 is provided with a liquid level gauge 518 for measuring the liquid level inside, because the liquid level of the liquid layer 507 continuously mixed in the stirring and curing tank 5 should not be lower than the holding tank 516 in order to make the liquid drawing pipe 515 have a good pumping effect, the liquid level inside is monitored by the liquid level gauge 518, and the liquid level stability is controlled by means of adjusting the addition amount of the liquid material, the displacement amount of the mixed liquid, and the like.
In some embodiments, a check valve 517 is disposed at the liquid outlet of the jet nozzle 514, where the flow direction of the check valve 517 is vertical and downward, that is, only the liquid is allowed to be sprayed below the jet nozzle 514, and the check valve 517 can be applied to the type containing solid solution in the prior art, and is used to avoid blockage caused by the backflow of the solid phase material into the jet nozzle 514.
In some embodiments, a liquid injection pump 6 is further arranged on a connection pipeline between the liquid outlet 510 and the temporary storage tank 7, and is used for quickly transporting the mixed fracturing liquid into the temporary storage tank 7 for collection and standby.
In operation, according to the present invention, the liquid is continuously fed into the agitation and aging tank 5 through the liquid main inlet 509 to the working level, and then the powder is continuously introduced into the agitation and aging tank through the powder inlet 508 and agitated. Simultaneously, the first feeding pump 9 is started to continuously inject a small amount of high-speed liquid material flow into the jet flow spray pipe 514 to form a negative pressure area in the jet flow spray pipe 514, so that powder collected around the stirring shaft 502 in the stirring process is pumped into the jet flow spray pipe 514, then the powder is mixed with the high-speed liquid material flow and discharged through the bottom of the stirring shaft 502, and the powder collected at the bottom of the stirring shaft 502 is flushed away, so that the powder collected at the side periphery and the bottom of the stirring shaft 502 is effectively redispersed in the continuous stirring process, the dispersing effect of the powder in the stirring curing tank 5 is ensured, and the stability of the fracturing fluid obtained by mixing is ensured.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and should not be construed as limiting the present invention.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present invention disclosed in the embodiments of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (6)
1. The fracturing fluid mixing device is characterized by comprising a powder hopper (1), a feeder (2), a jet mixer (4), a stirring curing tank (5), a temporary storage tank (7) and a fluid storage tank (8), wherein the powder hopper (1) is connected to the feeder (2), a fluid spraying end of the jet mixer (4) is connected to a water inlet (3), a side pipe is connected to the feeder (2), and a fluid outlet of the jet mixer (4) is connected to the stirring curing tank (5);
the stirring curing tank (5) is a hollow closed tank body, the top of the stirring curing tank is provided with a powder inlet (508) which is connected with the jet mixer (4), a stirrer consisting of a stirring shaft (502) and stirring blades (503) which are vertically arranged is arranged inside the stirring curing tank (5), and the stirring shaft (502) passes through a sealing component (504) arranged at the top of the stirring curing tank (5) to be connected with the output end of a driving motor (506) arranged outside the stirring curing tank (5);
the stirring shaft (502) is provided with a through hole (512) on the surface of a part between the sealing assembly (504) and the driving motor (506), the stirring shaft (502) is also vertically provided with a jet spray pipe (514) inside, a liquid inlet of the jet spray pipe (514) is connected to the through hole (512), a liquid outlet of the stirring shaft (502) is arranged on the bottom surface of the stirring shaft (502), the stirring shaft (502) is internally concavely provided with a containing groove (516) around the jet spray pipe (514) at a position of which the side surface is lower than the through hole (512), the containing groove (516) is communicated with the jet spray pipe (514) through a liquid suction pipe (515) arranged inside the stirring shaft (502), and the liquid suction pipe (515) can serve as a side suction pipe of the jet spray pipe (514) to guide fluid in the containing groove (516);
the stirring shaft (502) is further sleeved with a sealing liquid injector (505) on the surface of a part between the sealing assembly (504) and the driving motor (506), the sealing liquid injector (505) is a hollow sealing container, a liquid material auxiliary inlet (511) for communicating the inside and the outside is arranged on the surface of the sealing liquid injector, a through hole (512) is formed in the sealing liquid injector (505), and the sealing liquid injector (505) is contacted with the stirring shaft (502) through a rotary shaft seal (513);
still be provided with liquid material main inlet (509) on jar body (501) of stirring curing jar (5), jar body (501) bottom is provided with liquid export (510), wherein, liquid material main inlet (509) are parallelly connected to liquid material storage tank (8) with liquid material pair entry (511), and be provided with first charge pump (9) on the pipeline of liquid material pair entry (511) and liquid material storage tank (8), be provided with second charge pump (10) on the pipeline of liquid material main inlet (509) and liquid material storage tank (8), liquid export (510) are connected to temporary storage tank (7).
2. The fracturing fluid compounding device of claim 1, wherein: the seal assembly (504) is a mechanical seal.
3. The fracturing fluid compounding device of claim 1, wherein: the stirring curing tank (5) is provided with a liquid level meter (518) for measuring the liquid level inside the stirring curing tank.
4. The fracturing fluid compounding device of claim 1, wherein: a one-way valve (517) is arranged at the liquid outlet of the jet spray pipe (514), and the flow direction of the one-way valve (517) is vertical downward.
5. The fracturing fluid compounding device of claim 1, wherein: and a liquid injection pump (6) is arranged on a connecting pipeline between the liquid outlet (510) and the temporary storage tank (7).
6. The fracturing fluid compounding device of claim 1, wherein: the stirring blade (503) is a oblique-blade disc turbine blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311704311.1A CN117380014B (en) | 2023-12-13 | 2023-12-13 | Fracturing fluid mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311704311.1A CN117380014B (en) | 2023-12-13 | 2023-12-13 | Fracturing fluid mixing device |
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| Publication Number | Publication Date |
|---|---|
| CN117380014A true CN117380014A (en) | 2024-01-12 |
| CN117380014B CN117380014B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311704311.1A Active CN117380014B (en) | 2023-12-13 | 2023-12-13 | Fracturing fluid mixing device |
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| CN (1) | CN117380014B (en) |
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| CN215917113U (en) * | 2021-09-08 | 2022-03-01 | 西安和发石油科技有限公司 | Fracturing fluid reuse's agitating unit |
| CN117085534A (en) * | 2023-10-13 | 2023-11-21 | 南通日旭重工科技有限公司 | Paint mixing and stirring device and control method |
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