CN212803189U

CN212803189U - Cyclone desanding device

Info

Publication number: CN212803189U
Application number: CN202021239045.1U
Authority: CN
Inventors: 陆永忠; 金华芝; 马勇
Original assignee: Jiangsu Tengwei Petroleum Machinery Co ltd
Current assignee: Jiangsu Tengwei Petroleum Machinery Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-03-26
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a whirl sand removing device, the utility model discloses a lifting unit drives whirl desander body and goes up and down, realizes the regulation of whirl desander body height, has solved current whirl desander body height-fixing, can not be suitable for the problem of multiple operating mode. The telescopic driving chain wheel of the hydraulic cylinder telescopic rod moves, and the chain wheel is meshed with the chain, so that the flat plate is driven to move, and the height of the cyclone desander body is adjusted. The sand dredging structure solves the problems that the outlet of the sand collecting hopper of the cyclone sand remover is easy to be blocked and cannot be cleaned thoroughly; the inner column is driven to rotate by the motor, and the outer column rotates and simultaneously makes linear motion along the central axis direction of the outer column; the crushing member moves along with the outer column, the rotating crushing member is used for crushing solid-phase particles in the sand dredging pipe, and meanwhile, the crushing range of the downward moving crushing member is expanded, so that the solid-phase particles are prevented from blocking the sand dredging pipe; the main water pipe and the spray pipe move along with the outer column, the spray cleaning range is expanded, and the tank body and the sand collecting hopper are cleaned.

Description

Cyclone desanding device

Technical Field

The utility model particularly relates to a whirl sand removal device.

Background

The sand produced by the oil well causes great harm to the oil well and ground gathering and transportation equipment, including corrosion and blockage of equipment and pipelines, reduction of container volumes of a separator, a crude oil storage tank and the like, difficulty in maintenance, energy waste and the like. The sand production reasons of the oil-gas layer are many, including geological factors, production factors, well completion factors and the like, so before the produced fluid of the oil-gas well enters the ground gathering and transportation equipment, a wellhead sand removing device needs to be installed, sand removing operation is carried out on the produced fluid, and solid particles such as sand grains and the like are separated out as far as possible.

The sand removal device who uses on the oil field at present mainly is spiral-flow type sand removal device, and spiral-flow type sand removal device utilizes centrifugal separation and density difference's principle to carry out the sand removal, but current spiral-flow type sand removal device has following problem: firstly, the structure is fixed, the height can not be adjusted according to the requirement, and the device can not be suitable for various working conditions; secondly, after the desanding is finished, the outlet of a sand collecting hopper of the cyclone desander is easily blocked by solid-phase particles, so that the separation efficiency of the cyclone is influenced; thirdly, after the work in the cyclone desander is finished, the problem of incomplete cleaning exists, and the sand in the sand collecting hopper can only be cleaned.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the weak point of prior art, the utility model provides a whirl sand removing device.

The utility model provides a technical scheme of above-mentioned problem does: a cyclone desanding device comprises a lifting assembly, a cyclone desander body and a sand dredging structure, wherein the cyclone desander body is arranged on the lifting assembly;

the cyclone desander body comprises a tank body, a plurality of liquid outlet pipes arranged at the top of the tank body, a liquid inlet pipe arranged on the tank body and tangent to the tank body, a sand collecting hopper arranged at the bottom of the tank body and coaxial with the tank body, a sand dredging pipe arranged at the bottom of the sand collecting hopper and coaxial with the sand collecting hopper, a plurality of blow-off pipes obliquely arranged on the sand dredging pipe, a main valve arranged on the blow-off pipes and a plurality of support columns arranged on the sand collecting hopper;

the sand dredging structure comprises a supporting seat arranged at the top of a tank body, wherein the lower end of the supporting seat extends into the tank body, the upper end of the supporting seat is in threaded connection with the supporting seat through a first thread, an outer column of a hollow structure is coaxially arranged with the tank body, the outer column is rotatably arranged on the supporting seat through a rolling bearing and is positioned in the outer column, an inner column of the hollow structure is connected with the inner column through a second thread, the outer column is arranged at the lower end of the outer column, the two ends of the outer column are plugged, a main water pipe is coaxially arranged with the outer column, a plurality of spray pipes are arranged on the main water pipe and annularly arrayed around the central axis of the main water pipe, a plurality of spray nozzles are arranged on the spray pipes, a sand dredging column is arranged at the bottom of the main water pipe and is coaxially arranged with the main water pipe, a plurality of crushing pieces are uniformly distributed on the sand dredging column and along the, The conveyer pipe of outer post and main water pipe intercommunication installs the motor on the supporting seat, installs the first gear on the motor output shaft, installs on the inner prop and with the second gear of first gear engagement.

Furthermore, the lifting assembly comprises a support frame, a pair of slide rails arranged on the support frame, a flat plate arranged on the slide rails, a pair of hydraulic cylinders arranged on the support frame and positioned at two sides of the support frame, a chain wheel hinged with a telescopic rod of the hydraulic cylinder, and a chain with one end arranged on the flat plate and the other end arranged on the support frame and meshed with the chain wheel;

the cyclone desander body is arranged on a flat plate.

Further, the crushing member includes a plurality of crushing knives in an annular array about the central axis of the sand column.

Further, a water pump and a first valve are installed on the conveying pipe.

Further, the first thread and the second thread are respectively an external thread and an internal thread arranged on the outer column.

The utility model discloses beneficial effect has:

(1) the lifting assembly drives the cyclone desander body to lift, so that the height of the cyclone desander body is adjusted, and the problem that the conventional cyclone desander body is fixed in height and cannot be suitable for various working conditions is solved. The telescopic driving chain wheel of the hydraulic cylinder telescopic rod moves, and the chain wheel is meshed with the chain, so that the flat plate is driven to move, and the height of the cyclone desander body is adjusted.

(2) The problems that the outlet of a sand collecting hopper of the conventional cyclone desander is easily blocked by solid-phase particles and the cyclone desander cannot be cleaned completely are solved through the sand dredging structure; the inner column is driven to rotate through the motor, the outer column is in threaded connection with the inner column through a second thread, and the outer column rotates and moves linearly along the central axis direction of the outer column; the crushing member moves along with the outer column, the rotating crushing member is used for crushing solid-phase particles in the sand dredging pipe, and meanwhile, the crushing range of the downward moving crushing member is expanded, so that the solid-phase particles are prevented from blocking the sand dredging pipe; the main water pipe and the spray pipe move along with the outer column, the spray cleaning range is expanded, and the tank body and the sand collecting hopper are cleaned.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

figure 3 is the utility model discloses cyclone desander body cross-sectional view.

In the figure:

1-lifting component, 2-cyclone sand remover body, 3-sand removing structure, 4-support frame, 5-slide rail, 6-flat plate, 7-hydraulic cylinder, 8-chain wheel, 9-chain, 10-tank body, 11-liquid outlet pipe, 12-liquid inlet pipe, 13-sand collecting hopper, 14-sand removing pipe, 15-blow-off pipe, 16-support column, 17-support base, 18-outer column, 19-inner column, 20-main water pipe, 21-spray pipe, 22-spray nozzle, 23-sand removing column, 24-crushing piece, 25-water tank, 26-conveying pipe, 27-motor, 28-first gear, 29-second gear and 30-crushing knife.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

The utility model provides a whirl sand removal device, includes lifting unit 1, installs whirl sand remover body 2 on lifting unit 1, installs the husky structure 3 of dredging of whirl sand remover body 2 in.

The lifting assembly 1 comprises a support frame 4, a pair of slide rails 5 arranged on the support frame 4, a flat plate 6 arranged on the slide rails 5, a pair of hydraulic cylinders 7 arranged on the support frame 4 and positioned at two sides of the support frame 4, a chain wheel 8 hinged with the hydraulic cylinders 7 through telescopic rods, and a chain 9 with one end arranged on the flat plate 6 and the other end arranged on the support frame 4 and meshed with the chain wheel 8.

The pair of hydraulic cylinders 7 in the present application always move synchronously, and the method for synchronizing the hydraulic cylinders 7 belongs to the prior art, and those skilled in the art know that the details are not repeated in the present application.

Drive whirl desander body 2 through lifting unit 1 and go up and down, realize the regulation of 2 height of whirl desander body, make things convenient for whirl desander body 2's use, solved current whirl desander body 2 highly fixed, can not be suitable for the problem of multiple operating mode. The telescopic driving chain wheel 8 of the telescopic rod of the hydraulic cylinder 7 moves, the chain wheel 8 is meshed with the chain 9, so that the flat plate 6 is driven to move, and the cyclone desander body 2 moves along with the flat plate 6 to complete the adjustment of the height of the cyclone desander body 2.

The cyclone desander body 2 is arranged on a flat plate 6, the cyclone desander body 2 comprises a tank body 10, a plurality of liquid outlet pipes 11 arranged at the top of the tank body 10, a liquid inlet pipe 12 arranged on the tank body 10 and tangent to the tank body 10, a sand collecting hopper 13 arranged at the bottom of the tank body 10 and coaxial with the tank body 10, a sand dredging pipe 14 arranged at the bottom of the sand collecting hopper 13 and coaxial with the sand collecting hopper 13, a plurality of sewage discharge pipes 15 obliquely arranged on the sand dredging pipe 14, a main valve arranged on the sewage discharge pipe 15, and a plurality of support columns 16 arranged on the sand collecting hopper 13.

The sand removing work is completed through the cyclone sand remover body 2, after well flow enters the tank body 10 through the liquid inlet pipe 12, cyclone separation is realized under the action of centrifugal force and density difference, the well flow after sand removing is discharged through the liquid outlet pipe 11, and solid-phase particles such as sand grains in the well flow enter the sand collecting hopper 13 and are discharged after entering the drain pipe 15 through the sand dredging pipe 14.

The sand dredging structure 3 comprises a supporting seat 17 arranged at the top of a tank body 10, an outer column 18 with a hollow structure, an outer column 18 and a rolling bearing, wherein the lower end of the supporting seat 17 extends into the tank body 10, the upper end of the supporting seat is in threaded connection with the supporting seat 17 through a first thread, the outer column 18 is coaxially arranged with the tank body 10, the inner column 19 is rotatably arranged on the supporting seat 17 through the rolling bearing and is positioned in the outer column 18 and is of the hollow structure, the outer column 18 is in threaded connection with the inner column 19 through a second thread, a main water pipe 20 is arranged at the lower end of the outer column 18 and is plugged at two ends and is coaxially arranged with the outer column 18, a plurality of spraying pipes 21 are arranged on the main water pipe 20 and annularly arrayed around the central axis of the main water pipe 20, a plurality of spraying nozzles 22 are arranged on the spraying pipes 21, a sand dredging column 23 is arranged at the bottom of the main water pipe 20 and is coaxially arranged with the main water pipe, a delivery pipe 26 with one end communicated with the water tank 25 and the other end sequentially passing through the inner column 19, the outer column 18 and the main water pipe 20, a water pump installed on the delivery pipe 26, a first valve installed on the delivery pipe 26, a motor 27 installed on the support seat 17, a first gear 28 installed on the output shaft of the motor 27, and a second gear 29 installed on the inner column 19 and engaged with the first gear 28.

The first thread and the second thread are respectively an external thread and an internal thread which are arranged on the outer column, and the rotating directions of the first thread and the second thread are the same.

The crushing member 24 comprises a plurality of crushing knives 30 in an annular array about the central axis of the sand column 23; the delivery tube 26 is a hose.

The sand dredging structure 3 solves the problems that the outlet of the sand collecting hopper 13 of the existing cyclone desander is easily blocked by solid-phase particles and the cyclone desander is not completely cleaned; the motor 27 drives the inner column 19 to rotate, the outer column 18 is in threaded connection with the inner column 19 through a second thread, and the outer column 18 rotates and moves linearly along the direction of the central axis of the outer column 18; the crushing member 24 moves along with the outer column 18, the rotating crushing member 24 crushes solid-phase particles in the dredging pipe 14, and meanwhile, the crushing member 24 moving downwards expands the crushing range to avoid the solid-phase particles from blocking the dredging pipe 14; the main water pipe 20 and the spray pipe 21 move along with the outer column 18, the spraying and cleaning range is expanded, the tank body 10 and the sand collecting hopper are cleaned, and the sand cleaning efficiency is high and the effect is good.

The utility model discloses the theory of operation:

(1) starting the lifting component 1, and driving the cyclone desander body 2 to move to a required height by the lifting component 1;

(2) well flow enters the tank body 10 from the liquid inlet, desanding is completed in the cyclone desander body 2, the desanded well flow is discharged through the liquid outlet pipe 11, solid-phase particles such as sand grains and the like in the well flow enter the sand collecting hopper 13 and enter the drain pipe 15 through the sand dredging pipe 14 and then are discharged;

(3) when the dredging pipe 14 is blocked, the dredging structure 3 is started, and the crushing piece 24 crushes solid-phase particles in the dredging pipe 14;

(4) when the sand removal is completed and the cyclone sand remover body 2 needs to be cleaned, the sand dredging structure 3 is started, the first valve and the water pump are opened, the spray pipe 21 rotates and moves along the direction of the central axis of the outer column 18, and water is sprayed out to clean the tank body 10 and the sand collecting hopper 13.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.

Claims

1. A cyclone desanding device is characterized by comprising a lifting assembly (1), a cyclone desander body (2) arranged on the lifting assembly (1), and a sand dredging structure (3) arranged in the cyclone desander body (2);

the cyclone sand remover body (2) comprises a tank body (10), a plurality of liquid outlet pipes (11) arranged at the top of the tank body (10), a liquid inlet pipe (12) arranged on the tank body (10) and tangent to the tank body (10), a sand collecting hopper (13) arranged at the bottom of the tank body (10) and coaxial with the tank body (10), a sand dredging pipe (14) arranged at the bottom of the sand collecting hopper (13) and coaxial with the sand collecting hopper (13), a plurality of sewage discharge pipes (15) obliquely arranged on the sand dredging pipe (14), a main valve arranged on the sewage discharge pipes (15), and a plurality of support columns (16) arranged on the sand collecting hopper (13);

the sand dredging structure (3) comprises a supporting seat (17) arranged at the top of a tank body (10), an outer column (18) with a hollow structure, an outer column (18) with a lower end extending into the tank body (10) and an upper end connected with the supporting seat (17) through a first thread, the outer column (18) is coaxially arranged with the tank body (10), an inner column (19) with a hollow structure is rotatably arranged on the supporting seat (17) through a rolling bearing and positioned in the outer column (18), the outer column (18) is connected with the inner column (19) through a second thread, a main water pipe (20) which is arranged at the lower end of the outer column (18) and has two ends sealed and is coaxially arranged with the outer column (18), a plurality of spraying pipes (21) which are arranged on the main water pipe (20) and surround the central axis of the main water pipe (20) in an annular array, a plurality of spraying nozzles (22) which are arranged on the spraying pipes (21), and a sand dredging column (23) which is arranged at the bottom of the main water, install on husky post (23) of dredging and along husky post (23) central axis evenly distributed's multiunit broken piece (24), install water tank (25) at supporting seat (17) top, one end and water tank (25) intercommunication and the other end pass interior post (19) in proper order, conveyer pipe (26) of outer post (18) and main water pipe (20) intercommunication, install motor (27) on supporting seat (17), install first gear (28) on motor (27) output shaft, install on interior post (19) and with second gear (29) of first gear (28) meshing.

2. A cyclone sand removing device according to claim 1, wherein the lifting assembly (1) comprises a support frame (4), a pair of slide rails (5) mounted on the support frame (4), a plate (6) mounted on the slide rails (5), a pair of hydraulic cylinders (7) mounted on the support frame (4) and located at both sides of the support frame (4), a chain wheel (8) hinged to an expansion link of the hydraulic cylinders (7), and a chain (9) having one end mounted on the plate (6) and the other end mounted on the support frame (4) and engaged with the chain wheel (8);

the cyclone desander body (2) is arranged on the flat plate (6).

3. A cyclonic sand removal apparatus as claimed in claim 1 or claim 2, wherein the breaker members (24) comprise a plurality of breaker knives (30) in an annular array about the central axis of the sand column (23).

4. A cyclonic sand removal apparatus as claimed in claim 1 or claim 2, wherein a water pump and a first valve are mounted on the duct (26).

5. A cyclonic sand removal apparatus as claimed in claim 1 or claim 2, wherein a water pump and a first valve are mounted on the duct (26).