CN212429357U - Double-layer pipe jet type pneumatic dredging pump - Google Patents

Double-layer pipe jet type pneumatic dredging pump Download PDF

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Publication number
CN212429357U
CN212429357U CN202021055173.0U CN202021055173U CN212429357U CN 212429357 U CN212429357 U CN 212429357U CN 202021055173 U CN202021055173 U CN 202021055173U CN 212429357 U CN212429357 U CN 212429357U
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China
Prior art keywords
joint
hole
thread
porous
double
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Expired - Fee Related
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CN202021055173.0U
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Chinese (zh)
Inventor
何嘉兴
苏才航
钟功祥
刘帅
钟升级
胥卜轩
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Southwest Petroleum University
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Southwest Petroleum University
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Abstract

The utility model discloses a pneumatic desilting pump of double-deck pipe injection formula, expand pipe, urceolus, O type sealing washer A, inner tube joint, O type sealing washer B, suction joint, sealed adjusting washer A, nozzle, O type sealing washer C, porous joint B, O type sealing washer D, sealed adjusting washer B, end cover including porous joint A, larynx. The double-layer pipe jet type pneumatic dredging pump is high in vacuum degree, strong in self-suction capacity and easy to control the radial size; the structure is compact, the whole size is small, the moving performance is better, the suspension or movement in the cabin is convenient, and the cleaning task of the cabin bottom can be performed; when the device works in flammable and explosive occasions, the safety is better.

Description

Double-layer pipe jet type pneumatic dredging pump
Technical Field
The utility model relates to a jet type desilting pump specifically is a pneumatic desilting pump of double-deck pipe jet type, belongs to cabin desilting research and development field.
Background
Oil tankers, bulk carriers, and container ships are responsible for most of the world's cargo sea traffic, and are known as triple prime movers because of their large number and large number. The cargo is loaded in the cargo hold of the crude oil tanker and the bulk cargo tanker, and the cargo hold refers to the internal space under the deck for storing and transporting the cargo. From the perspective of convenient transportation and large-scale shipment, the current cargo hold bulk loading mode replaces the shipment mode such as tank and barrel and becomes the mainstream, and the bulk cargo ship accounts for 15% to 17% of the commercial fleet in the world, and is from a small bulk cargo ship to a large ore carrier capable of carrying 40 ten thousand tons. The cargo ship needs to be cleaned when changing loading and overhauling, and even if the same cargo is loaded, the coating needs to be sprayed from the viewpoint of rust prevention, so that the cargo ship needs to be frequently cleaned before loading.
Most cargo ships require a small number of crew to wash the tanks during sailing or mooring, and sewage is mixed with residues at the bottom of the tanks to form sludge after being flushed by a high-pressure water gun. The bottom of the crude oil tanker is more likely to accumulate a great deal of silt and silt. However, the existing cleaning of the bilge has a great problem, most cargo ships (crude oil ships) are not provided with silt lifting equipment, basically, bilge operators clean the silt into barrels and then lift the silt to a deck, and the bilge cleaning equipment is high in working strength and long in working time.
There is therefore a need for a system that can lift sludge directly to the deck, the core of which is dredging equipment. At present, the mainstream dredging equipment mainly comprises a water ring vacuum pump, a submersible sewage pump, a sludge screw pump, a pneumatic diaphragm pump and a three-body radiation type pneumatic pump; because the water-ring vacuum pump cannot pump media with particles; the submersible sewage pump needs to be submerged in water, and the pump is connected with the motor, so that the explosion-proof requirement cannot be met; the sludge screw pump has small flow and is sensitive to the viscosity change of a medium, so that the sludge screw pump is inconvenient to arrange in a cabin and has poor transportability; the pneumatic diaphragm pump has poor suction performance, small flow, inconvenient arrangement in the cabin and poor moving property; the three-body radiation type pneumatic pump cannot realize handheld operation, does not require explosion-proof performance, and has weak self-absorption capacity because the pump body must be submerged below a certain liquid level; therefore, a double-layer pipe jet type pneumatic desilting pump is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reliable, high-efficient double-deck pipe jet type pneumatic desilting pump to the not enough that prior art exists.
The technical scheme of the utility model is that:
the utility model provides a pneumatic desilting pump of double-deck pipe injection formula which characterized in that: the device comprises a porous joint A, a throat expanding pipe, an outer cylinder, an O-shaped sealing ring A, an inner pipe joint, an O-shaped sealing ring B, a suction joint, a sealing adjusting gasket A, a nozzle, an O-shaped sealing ring C, a porous joint B, O-shaped sealing ring D, a sealing adjusting gasket B and a sealing end cover; the jet type pneumatic desilting pump adopts a double-layer pipe structure, a gap between an inner layer and an outer layer is a high-pressure gas conveying channel, and the inner layer is in a conventional air jet pump structure form; the outer casing portion is still of unitary tubular construction rather than a symmetrically split version of the conventional vane pump housing.
Further, the porous joint A is of a hollow stepped shaft structure and is symmetrical left and right about a shaft shoulder in the middle; the hollow part is a big-small-big stepped hole, and the big holes at the left end and the right end are processed with internal threads in an equal diameter; external threads are processed on two sides of the external shaft shoulder; 20 high-pressure gas through holes A are arranged between the central hole and the outer wall at equal intervals along the ring shape; an inner hole at the left end of the porous joint A is connected with an outer thread of an inner pipe of the concentric pipeline through an inner thread, and the outer wall of the porous joint A is connected with an inner thread of an outer pipe of the concentric pipeline through an outer thread; the right-end inner hole of the porous joint A is connected with the external thread at the left end of the throat expanding pipe through the internal thread, and the outer wall of the porous joint A is connected with the internal thread of the outer barrel through the external thread.
Furthermore, the throat expanding pipe is of a hollow cylindrical structure, the hollow part is divided into four sections which are connected with each other, and the four sections are a large circular hole section, a small conical hole section, a small circular hole section and a large conical hole section from left to right in sequence; the left end of the outer wall of the throat expanding pipe is provided with an external thread with a certain length; the right end of the outer wall of the throat expanding pipe is provided with a step with a certain length, the outer diameter of the section is relatively smaller, two annular grooves for installing an O-shaped sealing ring A are formed in the section, the section is fixed by a step hole inserted into the left end of the inner pipe joint, and the step hole and the annular groove are in clearance fit.
Furthermore, the inner hole of the inner pipe joint is divided into three sections of large, small and small, and the three sections are respectively a throat expanding pipe fixing hole, a suction chamber hole and a nozzle fixing hole from left to right; a step through hole for connecting the suction joint is processed in the middle section of the inner pipe joint perpendicular to the direction of the cylindrical bus.
Furthermore, internal threads are processed at the left end and the right end of the outer cylinder, the left end of the outer cylinder is connected with the porous joint A through threads, and the right end of the outer cylinder is connected with the porous joint B through threads; an internal thread for connecting the suction joint is processed near the right end and is vertical to the direction of the cylindrical generatrix.
Further, the porous joint B is of a hollow stepped shaft structure, and a shaft shoulder is positioned in the middle; the hollow part is a big-small step hole; external threads are processed on two sides of the external shaft shoulder; 20 high-pressure gas through holes B are arranged between the central hole and the outer wall at equal intervals along the ring shape; after the nozzle is sleeved in the inner pipe joint, the inner pipe joint is sleeved in the porous joint B, the inner pipe joint and the porous joint are in clearance fit, and O-shaped sealing rings are arranged to play a role in fixing and sealing; the outer wall of the left end of the porous joint B is connected with the internal thread of the outer barrel through an external thread; the outer wall of the right end of the porous joint B is connected with the inner thread of the sealing end cover through an outer thread.
Furthermore, the sealing end cover is of a cup-shaped structure with a convex bottom, and an internal thread matched with the external thread at the right end of the porous joint B is processed at the connecting port at the left end.
The utility model has the advantages that:
1. the double-layer pipe jet type pneumatic dredging pump has the advantages that the convenient arrangement is determined by the structural characteristics, the whole size is small, the moving and transporting performance is better, and the cleaning task of the bilge can be performed.
2. The double-layer pipe jet type pneumatic dredging pump can meet the working condition requirement, reduce the workload and the working strength of cabin bottom operating personnel, shorten the time for washing the cabin, enable the cargo cabin to be put into next use as soon as possible, save the dredging cost, and have larger production value and economic benefit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
fig. 3 is a cross-sectional view of section B-B in fig. 1.
In the figure: 1. a porous joint A; 2. expanding the throat; 3. an outer cylinder; 4. an O-shaped sealing ring A; 5. an inner pipe joint; 6. an O-shaped sealing ring B; 7. a suction fitting; 8. a seal adjustment washer A; 9. a nozzle; 10. an O-shaped sealing ring C; 11. a porous joint B; 12. an O-shaped sealing ring D; 13. a seal adjustment washer B; 14. sealing the end cap; 15. a high-pressure gas through hole A; 16. and a high-pressure gas through hole B.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a double-tube jet pneumatic pump for removing sludge is characterized in that: the device comprises a porous joint A1, a throat expanding pipe 2, an outer cylinder 3, an O-shaped sealing ring A4, an inner pipe joint 5, an O-shaped sealing ring B6, a suction joint 7, a sealing adjusting gasket A8, a nozzle 9, an O-shaped sealing ring C10, a porous joint B11, an O-shaped sealing ring D12, a sealing adjusting gasket B13 and a sealing end cover 14; the jet type pneumatic desilting pump adopts a double-layer pipe structure, a gap between an inner layer and an outer layer is a high-pressure gas conveying channel, and the inner layer is in a conventional air jet pump structure form; the outer casing portion is still of unitary tubular construction rather than a symmetrically split version of the conventional vane pump housing.
The porous joint A1 is a hollow stepped shaft structure and is symmetrical left and right about a shaft shoulder in the middle; the hollow part is a big-small-big stepped hole, and the big holes at the left end and the right end are processed with internal threads in an equal diameter; external threads are processed on two sides of the external shaft shoulder; 20 high-pressure gas through holes A15 are arranged between the central hole and the outer wall at equal intervals along the ring shape; an inner hole at the left end of the porous joint A1 is connected with an outer thread of an inner pipe of the concentric pipeline through an inner thread, and the outer wall of the porous joint A1 is connected with an inner thread of an outer pipe of the concentric pipeline through an outer thread; the right end inner hole of the porous joint A1 is connected with the external thread at the left end of the throat expanding pipe 2 through the internal thread, and the outer wall is connected with the internal thread of the outer cylinder 3 through the external thread.
The throat expanding pipe 2 is of a hollow cylindrical structure, the hollow part is divided into four sections which are connected with each other, and the four sections are a large circular hole section, a small conical hole section, a small circular hole section and a large conical hole section from left to right in sequence; the left end of the outer wall of the throat expanding pipe 2 is provided with an external thread with a certain length; the right end of the outer wall of the throat expanding pipe 2 is provided with a step with a certain length, the outer diameter of the section is relatively smaller, two annular grooves for installing an O-shaped sealing ring A4 are formed in the section, the section is fixed by a step hole inserted into the left end of the inner pipe joint 5, and the two are in clearance fit.
The inner hole of the inner pipe joint 5 is divided into three sections of large, small and small, and the three sections are respectively a throat expanding pipe fixing hole, a suction chamber hole and a nozzle fixing hole from left to right; a step through hole for connecting the suction joint 7 is processed on the middle section of the inner pipe joint 5 in the direction vertical to the cylindrical generatrix. The left end and the right end of the outer cylinder 3 are both provided with internal threads, the left end of the outer cylinder is connected with a porous joint A1 through threads, and the right end of the outer cylinder is connected with a porous joint B11 through threads; an internal thread for connecting the suction connector 7 is processed near the right end and is vertical to the direction of the cylindrical generatrix.
The porous joint B11 is a hollow stepped shaft structure, and a shaft shoulder is positioned in the middle; the hollow part is a big-small step hole; external threads are processed on two sides of the external shaft shoulder; 20 high-pressure gas through holes B16 are arranged between the central hole and the outer wall at equal intervals along the ring shape; after the nozzle 9 is sleeved into the inner pipe joint 5, the inner pipe joint 5 is sleeved into the porous joint B11, the two parts are in clearance fit, and an O-shaped sealing ring is arranged to play a role in fixing and sealing; the outer wall of the left end of the porous joint B11 is connected with the internal thread of the outer cylinder 3 through the external thread; the right outer wall of the porous joint B11 is connected with the internal thread of the end cap 14 through external thread. The sealing end cover 14 is of a cup-shaped structure with a convex bottom, and an internal thread matched with the external thread at the right end of the porous joint B11 is processed at the connecting port at the left end.
When the utility model is used, compressed air enters a clearance channel formed by the outer cylinder 3 and the throat expanding pipe 2 through a high-pressure gas through hole A15 of the porous joint A1; then enters the chamber of the sealing end cover 14 through a high-pressure gas through hole B16 of a porous joint B11; then, the compressed air is ejected from the nozzle 9 at high speed, the high-speed jet flow sucks the gas in the suction chamber hole to form high vacuum degree, so that the sludge is sucked from the suction connector 7 through the suction pipeline; then, fully mixing high-energy compressed air and low-energy sludge at a small circular hole section of the throat expansion pipe 2 to exchange energy mutually to form gas-liquid-solid three-phase flow mixed liquid; and finally, most of the kinetic energy is converted into pressure energy through the small conical hole section and the large circular hole section of the throat expanding pipe 2, and the pressure energy is discharged from the large circular hole section of the throat expanding pipe 2 and enters an inner pipe (discharge pipeline) of a concentric pipeline, so that the purpose of cleaning sludge is achieved.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a pneumatic desilting pump of double-deck pipe injection formula which characterized in that: the device comprises a porous joint A, a throat expanding pipe, an outer cylinder, an O-shaped sealing ring A, an inner pipe joint, an O-shaped sealing ring B, a suction joint, a sealing adjusting gasket A, a nozzle, an O-shaped sealing ring C, a porous joint B, O-shaped sealing ring D, a sealing adjusting gasket B and a sealing end cover;
the jet type pneumatic desilting pump adopts a double-layer pipe structure, a gap between an inner layer and an outer layer is a high-pressure gas conveying channel, and the inner layer is in a conventional air jet pump structure form; the outer casing portion is still of unitary tubular construction rather than a symmetrically split version of the conventional vane pump housing.
2. The double-tube jet type pneumatic desilting pump as recited in claim 1, wherein: the porous joint A is of a hollow stepped shaft structure and is bilaterally symmetrical about a shaft shoulder in the middle; the hollow part is a big-small-big stepped hole, and the big holes at the left end and the right end are processed with internal threads in an equal diameter; external threads are processed on two sides of the external shaft shoulder; 20 high-pressure gas through holes A are arranged between the central hole and the outer wall at equal intervals along the ring shape;
an inner hole at the left end of the porous joint A is connected with an outer thread of an inner pipe of the concentric pipeline through an inner thread, and the outer wall of the porous joint A is connected with an inner thread of an outer pipe of the concentric pipeline through an outer thread; the right-end inner hole of the porous joint A is connected with the external thread at the left end of the throat expanding pipe through the internal thread, and the outer wall of the porous joint A is connected with the internal thread of the outer barrel through the external thread.
3. The double-tube jet type pneumatic desilting pump as recited in claim 1, wherein: the throat expanding pipe is of a hollow cylindrical structure, the hollow part is divided into four sections which are connected with each other, and the four sections are a large circular hole section, a small conical hole section, a small circular hole section and a large conical hole section from left to right in sequence; the left end of the outer wall of the throat expanding pipe is provided with an external thread with a certain length; the right end of the outer wall of the throat expanding pipe is provided with a step with a certain length, the outer diameter of the section is relatively smaller, two annular grooves for installing an O-shaped sealing ring A are formed in the section, the section is fixed by a step hole inserted into the left end of the inner pipe joint, and the step hole and the annular groove are in clearance fit.
4. The double-tube jet type pneumatic desilting pump as recited in claim 1, wherein: the inner hole of the inner pipe joint is divided into three sections of large, small and small, and the three sections are respectively a throat expanding pipe fixing hole, a suction chamber hole and a nozzle fixing hole from left to right; a step through hole for connecting the suction joint is processed in the middle section of the inner pipe joint perpendicular to the direction of the cylindrical bus.
5. The double-tube jet type pneumatic desilting pump as recited in claim 1, wherein: the left end and the right end of the outer barrel are both provided with internal threads, the left end of the outer barrel is connected with the porous joint A through threads, and the right end of the outer barrel is connected with the porous joint B through threads; an internal thread for connecting the suction joint is processed near the right end and is vertical to the direction of the cylindrical generatrix.
6. The double-tube jet type pneumatic desilting pump as recited in claim 1, wherein: the porous joint B is of a hollow stepped shaft structure, and a shaft shoulder is positioned in the middle; the hollow part is a big-small step hole; external threads are processed on two sides of the external shaft shoulder; 20 high-pressure gas through holes B are arranged between the central hole and the outer wall at equal intervals along the ring shape;
after the nozzle is sleeved in the inner pipe joint, the inner pipe joint is sleeved in the porous joint B, the inner pipe joint and the porous joint are in clearance fit, and O-shaped sealing rings are arranged to play a role in fixing and sealing; the outer wall of the left end of the porous joint B is connected with the internal thread of the outer barrel through an external thread; the outer wall of the right end of the porous joint B is connected with the inner thread of the sealing end cover through an outer thread.
7. The double-tube jet type pneumatic desilting pump as recited in claim 1, wherein: the sealing end cover is of a cup-shaped structure with a convex bottom, and an internal thread matched with the external thread at the right end of the porous joint B is processed at the connecting port at the left end.
CN202021055173.0U 2020-06-10 2020-06-10 Double-layer pipe jet type pneumatic dredging pump Expired - Fee Related CN212429357U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021055173.0U CN212429357U (en) 2020-06-10 2020-06-10 Double-layer pipe jet type pneumatic dredging pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021055173.0U CN212429357U (en) 2020-06-10 2020-06-10 Double-layer pipe jet type pneumatic dredging pump

Publications (1)

Publication Number Publication Date
CN212429357U true CN212429357U (en) 2021-01-29

Family

ID=74273294

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021055173.0U Expired - Fee Related CN212429357U (en) 2020-06-10 2020-06-10 Double-layer pipe jet type pneumatic dredging pump

Country Status (1)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210129

CF01 Termination of patent right due to non-payment of annual fee