CN215139416U

CN215139416U - Thick oil viscosity reduction device

Info

Publication number: CN215139416U
Application number: CN202121433264.8U
Authority: CN
Inventors: 杨锐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-14
Anticipated expiration: 2031-06-25

Abstract

The utility model provides a viscous crude viscosity reduction device, include: inner casing, shell body, stirring subassembly and heating element. The outer shell is sleeved outside the inner shell, and a storage cavity is formed between the inner wall of the outer shell and the outer wall of the inner shell. The inner shell is internally provided with a partition plate, a partition cylinder is arranged below the partition plate, a first mixing cavity is formed above the partition plate, a second mixing cavity is formed inside the partition cylinder, and a heating cavity is formed between the outer wall of the partition cylinder and the inner wall of the inner shell. The stirring subassembly includes: stirring motor, spiral stirring leaf and stirring piece all set up on stirring motor's output shaft, and inside first mixed cavity was arranged in to the spiral stirring leaf, inside the second mixed cavity was arranged in to the stirring piece. A viscous crude viscosity reduction device, can promote the mixed degree of viscous crude and viscosity reducer, promote the work efficiency of viscous crude viscosity reduction.

Description

Thick oil viscosity reduction device

Technical Field

The utility model belongs to oil development equipment field especially relates to a viscous crude viscosity reduction device.

Background

In the process of oil exploitation, the need of conveying thick oil is inevitable. Because the viscosity of viscous crude is higher, therefore it carries the degree of difficulty great, and the technical staff in the field can carry out the viscosity reduction to viscous crude before carrying to reduce the transportation degree of difficulty of viscous crude, promote the transport efficiency of viscous crude.

The common viscosity reduction method for the thick oil mainly comprises five steps of thin oil blending viscosity reduction, heating viscosity reduction, thick oil modification viscosity reduction, chemical viscosity reduction and microorganism viscosity reduction. The chemical viscosity reduction method has wide application range, simple process and low cost, so the chemical viscosity reduction method is widely applied.

When the chemical viscosity reduction treatment of the thick oil is carried out, the worker needs to mix the viscosity reducer with the thick oil to be conveyed in the treatment device, and the thick oil can be changed into an emulsified state through the viscosity reducer, so that the viscosity of the thick oil is greatly reduced. However, the mixing effect of the existing treatment device is poor, and when the treatment device works, thick oil cannot be uniformly contacted with the viscosity reducer, so that the emulsification speed of the thick oil can be reduced, and the viscosity reduction efficiency of the thick oil is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a viscous crude viscosity reduction device to realize promoting the mesh of viscous crude viscosity reduction efficiency.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a thick oil viscosity reducing device comprising: the stirring device comprises an inner shell, an outer shell, a stirring component and a heating component; the outer shell is sleeved outside the inner shell, a storage cavity is formed between the inner wall of the outer shell and the outer wall of the inner shell, a discharge pipe is arranged on the side wall of the outer shell, and the discharge pipe is communicated with the storage cavity;

a partition plate is arranged in the inner shell, a partition cylinder is arranged below the partition plate, a first mixing cavity is formed above the partition plate, a second mixing cavity is formed in the partition cylinder, and a heating cavity is formed between the outer wall of the partition cylinder and the inner wall of the inner shell; a feeding pipe is arranged on the side wall of the inner shell, the feeding pipe is communicated with the first mixing cavity, and the heating assembly is arranged in the heating cavity; the partition plate is provided with a communicating hole, the first mixed cavity is communicated with the second mixed cavity through the communicating hole, the partition cylinder is provided with a first flow guide hole, the second mixed cavity is communicated with the heating cavity through the first flow guide hole, the side wall of the inner shell is provided with a second flow guide hole, and the heating cavity is communicated with the storage cavity through the second flow guide hole;

the stirring subassembly includes: stirring motor, spiral stirring leaf and stirring piece all set up on stirring motor's output shaft, and inside first mixed cavity was arranged in to the spiral stirring leaf, inside the second mixed cavity was arranged in to the stirring piece.

Further, the thick oil viscosity reduction device comprises a premixing box, wherein the premixing box is arranged on the feeding pipe, and a feeding blind pipe is arranged inside the premixing box; the feeding blind pipe is communicated with the viscosity reducer storage tank, and a medicine feeding hole is formed in the side wall, close to the inner shell, of the feeding blind pipe.

Furthermore, the spiral stirring blade is provided with a circulation hole, and the inner diameter of the circulation hole is larger than that of the communication hole.

Furthermore, an extrusion gap is formed between the outer edge of the stirring sheet and the inner wall of the separating cylinder, and the extrusion gap is smaller than 0.5 mm.

Further, the first flow guide holes and the second flow guide holes are arranged in a staggered mode.

Furthermore, the aperture of the first flow guide hole is larger than that of the second flow guide hole.

Further, the heating assembly comprises a plurality of heating rods which are annularly arranged inside the heating cavity.

Compared with the prior art, a viscous crude viscosity reduction device have following advantage:

(1) a viscous crude viscosity reduction device, inside first mixed cavity, the mixed cavity of second and the heating cavity of being equipped with of its inner casing, and be equipped with the storage cavity between inner casing and shell body. In the process of viscosity reduction of thick oil, the mixture of thick oil and viscosity reducer will enter into first mixing cavity inside, and spiral stirring leaf will carry out first stirring to the mixture this moment, promotes its mixed degree tentatively to carry the mixture inside the second mixing cavity. Inside the second mixing cavity, the stirring sheet will stir the mixture a second time and extrude the mixture so that the mixture passes through the first and second diversion holes in sequence and finally enters inside the storage cavity. When the mixture passes through first water conservancy diversion hole and second water conservancy diversion hole, the shearing action in water conservancy diversion hole can not only reduce the viscosity of viscous crude, can also further promote the mixed effect of viscous crude and mixture to promote the even degree of mixture. Compared with the prior art, the device can stir the mixture of the thick oil and the viscosity reducer twice, and shear and mix the mixture through the diversion holes, so that the emulsifying speed of the thick oil can be increased, and the working efficiency of viscosity reduction of the thick oil is improved.

(2) A viscous crude viscosity reduction device, at the inside heating rod that is equipped with cyclic annular arrangement of heating cavity, can promote the inside temperature of heating cavity through the heating rod to reduce the viscosity of viscous crude, and promote viscosity reducer work effect.

(3) A viscous crude viscosity reduction device, can make viscous crude and viscosity breaker go on the premixing before getting into interior casing through the cooperation of premix box and feeding blind pipe in advance. In addition, because the medicine feeding hole is formed in the side wall, close to the inner shell, of the feeding blind pipe, the flowing of thick oil in the premixing box can guide the viscosity reducer in the feeding blind pipe, and therefore the viscosity reducer can conveniently enter the premixing box.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a thick oil viscosity reduction device according to an embodiment of the present invention;

fig. 2 is an exploded view of a thick oil viscosity reducing device according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a thick oil viscosity reducing device according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of the viscous oil viscosity reducing device according to the embodiment of the present invention at another angle;

fig. 5 is a cross-sectional view of an inner shell and an outer shell according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of a pre-mixing tank according to an embodiment of the present invention.

Description of reference numerals:

1-an inner housing; 11-feed pipe; 12-second flow guiding holes; 2-an outer shell; 21-a discharge pipe; 31-a partition plate; 311-communicating hole; 32-a separation cylinder; 321-first flow guide holes; 41-a first mixing cavity; 42-a second mixing cavity; 43-heating the cavity; 44-a storage cavity; 51-a stirring motor; 52-spiral stirring blade; 521-flow-through holes; 53-stirring sheet; 6-a pre-mixing box; 61-feeding blind pipe; 611-medicine feeding holes; 7-heating rod.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

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

A viscosity reducing device for thick oil, the structure of which can be schematically shown in fig. 1-4, as shown in the figure, the viscosity reducing device for thick oil in this embodiment comprises: inner shell 1, outer shell 2, stirring subassembly and heating element. Wherein interior casing 1 sets up inside 2 outer casings for hold the mixture of viscous crude and viscosity breaker, casing 1 inside including stirring subassembly and heating element all set up can promote the mixed degree of viscous crude and viscosity breaker through stirring subassembly and heating element, and reduce the viscosity of viscous crude.

Specifically, fig. 5 is a cross-sectional view of the inner shell 1 and the outer shell 2, as shown in fig. 5, the outer shell 2 is sleeved outside the inner shell 1, a storage cavity 44 is formed between the inner wall of the outer shell 2 and the outer wall of the inner shell 1, a discharge pipe 21 is arranged on the side wall of the outer shell 2, and the discharge pipe 21 is communicated with the storage cavity 44. In use, the mixture inside the storage cavity 44 will leave the apparatus through the outlet pipe 21 and be delivered by subsequent petroleum delivery means.

A partition plate 31 is provided inside the casing 1, and a partition cylinder 32 is provided below the partition plate 31. The inside of the inner case 1 can be divided into a first mixing cavity 41, a second mixing cavity 42 and a heating cavity 43 by the partition plate 31 and the partition cylinder 32. Wherein the first mixing cavity 41 is located above the partition plate 31, the second mixing cavity 42 is located inside the partition cylinder 32, and the heating cavity 43 is located between the outer wall of the partition cylinder 32 and the inner wall of the inner case 1.

To facilitate the mixture entering the inner housing 1, a feed pipe 11 is provided on the sidewall of the inner housing 1, and the feed pipe 11 is in communication with the first mixing cavity 41. In use, the mixture of thickened oil and viscosity reducer will pass along the feed pipe 11 into the interior of the first mixing cavity 41, thereby initiating mixing.

In addition, in order to facilitate the mixture to flow inside the inner casing 1, the present embodiment is provided with a communication hole 311 on the partition plate 31, a first guide hole 321 on the partition cylinder 32, and a second guide hole 12 on the side wall of the inner casing 1. Wherein the communication hole 311 enables the first mixing cavity 41 to communicate with the second mixing cavity 42, the first guide hole 321 enables the second mixing cavity 42 to communicate with the heating cavity 43, and the second guide hole 12 enables the heating cavity 43 to communicate with the storage cavity 44.

In operation, the mixture will flow in the direction of the first mixing cavity 41, the second mixing cavity 42, the heating cavity 43, the storage cavity 44. In the flowing process, the stirring assembly in the device can stir the mixture, so that the uniformity of the mixture of the thickened oil and the viscosity reducer is improved.

As shown in fig. 2, the stirring assembly includes a stirring motor 51, a spiral stirring blade 52 and a stirring blade 53, the spiral stirring blade 52 and the stirring blade 53 are both disposed on an output shaft of the stirring motor 51, the spiral stirring blade 52 is disposed inside the first mixing cavity 41, and the stirring blade 53 is disposed inside the second mixing cavity 42.

After the mixture enters the first mixing cavity 41, the rotation of the spiral stirring blade 52 can stir the mixture for the first time, so as to primarily improve the uniformity degree of the mixture of the thick oil and the viscosity reducer. In addition, the rotation of the spiral agitating blade 52 can move the mixture in the first mixing cavity 41 toward the second mixing cavity 42, thereby increasing the flow rate of the mixture toward the second mixing cavity 42.

Optionally, in order to improve the effect of the first stirring of the device, the spiral stirring blade 52 may be provided with a circulation hole 521, and the inner diameter of the circulation hole 521 should be larger than the inner diameter of the communication hole 311. When the spiral stirring blade 52 stirs the mixture, part of the mixture will pass through the circulation hole 521 in the moving process, and the circulation inner diameter of the mixture can be changed through the circulation hole 521, so that the flow direction of the mixture in the first mixing cavity 41 is disturbed, and the purpose of improving the stirring effect is achieved.

After the mixture enters the second mixing cavity 42, the rotation of the stirring blade 53 will stir the mixture for the second time, thereby further improving the mixing effect of the thick oil and the viscosity reducer. In addition, the secondary stirring process extrudes the mixture to enter the heating cavity 43 along the first guiding holes 321.

Optionally, in order to improve the extrusion effect of the stirring sheet 53 on the mixture, an extrusion gap should be formed between the outer edge of the stirring sheet 53 and the inner wall of the separation cylinder 32, and the extrusion gap is smaller than 0.5 mm. When the stirring device works, the existence of the extrusion gap can avoid the stirring sheet 53 from directly contacting with the inner wall of the inner shell 1, thereby reducing the rotation resistance of the stirring sheet 53 and effectively prolonging the service life of the stirring sheet 53.

In order to further improve the mixing degree of the thick oil and the viscosity reducer, the heating assembly is disposed inside the heating cavity 43. Optionally, the heating assembly comprises a plurality of heating rods 7, and a plurality of heating rods 7 are annularly arranged inside the heating cavity 43. After heating element starts, heating rod 7 can promote the inside temperature of heating cavity 43, and the viscosity of viscous crude can be reduced in the rising of temperature, can also promote the effect of viscosity breaker simultaneously to further accelerate the emulsification speed of viscous crude.

In addition, since the mixture inside the second mixing cavity 42 continuously flows into the heating cavity 43, the mixture in the heating cavity 43 flows into the storage cavity 44 along the second guide holes 12. In order to prolong the residence time of the mixture inside the heating cavity 43, as shown in fig. 5, the first guiding holes 321 and the second guiding holes 12 are disposed in a staggered manner, and the diameter of the first guiding holes 321 is larger than that of the second guiding holes 12.

The first pilot holes 321 and the second pilot holes 12 can apply a shearing force to the mixture as the mixture passes through the first pilot holes 321 and the second pilot holes 12. Under the action of shearing force, the viscosity of the thick oil can be further reduced, so that the conveying difficulty of subsequent equipment can be further reduced. Furthermore, as the mixture flows through the first and second guide holes 321 and 12, the change in the inner diameter of the flow will again disturb the flow of the mixture, thereby causing turbulence in the mixture as it enters and exits the heating cavity 43. The contact probability between the thick oil and the viscosity reducer can be improved again through turbulent flow, so that the working efficiency of viscosity reduction of the thick oil is improved.

As an optional implementation manner of this embodiment, in order to facilitate the mixing of the thick oil and the viscosity reducer, the thick oil viscosity reducer apparatus may further include a pre-mixing tank 6. Specifically, as shown in fig. 6, the premixing tank 6 is disposed on the feeding pipe 11, and a feeding blind pipe 61 is disposed inside the premixing tank 6. When the device is installed, the feeding blind pipe 61 is communicated with the viscosity reducer storage tank, and a drug feeding hole 611 is formed in the side wall, close to the inner shell 1, of the feeding blind pipe 61. After thick oil enters the interior of the premixing box 6 along the feeding pipe 11, negative pressure is formed in the interior of the premixing box 6 due to the flowing of the thick oil, and the viscosity reducer in the feeding blind pipe 61 flows into the interior of the premixing box 6 under the action of the negative pressure, so that the viscosity reducer and the thick oil are mixed.

The following explains the effects of the above-described scheme:

the embodiment provides a viscous crude viscosity reduction device, can carry out stirring twice and many times shearing to the mixture of viscous crude and viscosity reducer through the cooperation of stirring subassembly and interior casing. The uniform mixing degree of the viscosity reducer and the thick oil can be improved through the stirring and shearing processes, so that the viscosity of the thick oil is quickly reduced. Secondly, this device can promote the temperature of heating cavity through heating element, can not only strengthen the working effect of viscosity breaker through the intensification, can also further reduce the viscosity of viscous crude. In addition, this device can make viscous crude and thinner carry out the premix before getting into interior casing through the cooperation of premix case and feeding blind pipe to make things convenient for the staff to throw the thinner.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a viscous crude viscosity reduction device which characterized in that: the method comprises the following steps: the device comprises an inner shell (1), an outer shell (2), a stirring component and a heating component; the outer shell (2) is sleeved outside the inner shell (1), a storage cavity (44) is formed between the inner wall of the outer shell (2) and the outer wall of the inner shell (1), a discharge pipe (21) is arranged on the side wall of the outer shell (2), and the discharge pipe (21) is communicated with the storage cavity (44);

a partition plate (31) is arranged in the inner shell (1), a partition cylinder (32) is arranged below the partition plate (31), a first mixing cavity (41) is formed above the partition plate (31), a second mixing cavity (42) is formed in the partition cylinder (32), and a heating cavity (43) is formed between the outer wall of the partition cylinder (32) and the inner wall of the inner shell (1); a feeding pipe (11) is arranged on the side wall of the inner shell (1), the feeding pipe (11) is communicated with the first mixing cavity (41), and the heating component is arranged in the heating cavity (43); a communicating hole (311) is formed in the partition plate (31), the first mixing cavity (41) is communicated with the second mixing cavity (42) through the communicating hole (311), a first flow guide hole (321) is formed in the partition cylinder (32), the second mixing cavity (42) is communicated with the heating cavity (43) through the first flow guide hole (321), a second flow guide hole (12) is formed in the side wall of the inner shell (1), and the heating cavity (43) is communicated with the storage cavity (44) through the second flow guide hole (12);

the stirring subassembly includes: stirring motor (51), spiral stirring leaf (52) and stirring piece (53) all set up on the output shaft of stirring motor (51), and spiral stirring leaf (52) are arranged in first mixing cavity (41) inside, and stirring piece (53) are arranged in second mixing cavity (42) inside.

2. The viscosity reducing device for thick oil according to claim 1, characterized in that: the thick oil viscosity reduction device comprises a premixing box (6), wherein the premixing box (6) is arranged on a feeding pipe (11), and a feeding blind pipe (61) is arranged inside the premixing box (6); the feeding blind pipe (61) is communicated with the viscosity reducer storage tank, and a drug feeding hole (611) is formed in the side wall, close to the inner shell (1), of the feeding blind pipe (61).

3. The viscosity reducing device for thick oil according to claim 1, characterized in that: the spiral stirring blade (52) is provided with a circulation hole (521), and the inner diameter of the circulation hole (521) is larger than that of the communication hole (311).

4. The viscosity reducing device for thick oil according to claim 1, characterized in that: an extrusion gap is formed between the outer edge of the stirring sheet (53) and the inner wall of the separating cylinder (32), and the extrusion gap is smaller than 0.5 mm.

5. The viscosity reducing device for thick oil according to claim 1, characterized in that: the first guide holes (321) and the second guide holes (12) are arranged in a staggered mode.

6. The viscosity reducing device for thick oil according to claim 1, characterized in that: the aperture of the first flow guide hole (321) is larger than that of the second flow guide hole (12).

7. The viscosity reducing device for thick oil according to claim 1, characterized in that: the heating assembly comprises a plurality of heating rods (7), and the plurality of heating rods (7) are annularly arranged inside a heating cavity (43).