CN116857206A - Explosion-proof slurry pump system - Google Patents
Explosion-proof slurry pump system Download PDFInfo
- Publication number
- CN116857206A CN116857206A CN202311066921.3A CN202311066921A CN116857206A CN 116857206 A CN116857206 A CN 116857206A CN 202311066921 A CN202311066921 A CN 202311066921A CN 116857206 A CN116857206 A CN 116857206A
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- CN
- China
- Prior art keywords
- pump
- cylinder body
- inlet
- explosion
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 66
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims description 38
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 5
- 238000000429 assembly Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/301—Pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of slurry pumps, and provides an explosion-proof slurry pump system, which comprises a pump shell, an impeller assembly and a pressure detection assembly, wherein the impeller assembly is arranged in the pump shell, the pump shell is provided with an inlet and an outlet, the pressure detection assembly is arranged on the pump shell, and the pressure detection assembly is used for detecting the pressure in the slurry pump; a flow restrictor assembly is disposed on the pump housing, the flow restrictor assembly being located at the inlet, the flow restrictor assembly comprising: the swing blades are arranged on the inner wall of the inlet at intervals; the telescopic parts are provided with a plurality of telescopic parts, the circumference is arranged on the pump shell at intervals, the telescopic parts correspond to the swing blades one by one, and the telescopic parts are used for driving the swing blades to swing. Through above-mentioned technical scheme, the problem that the sediment stuff pump pressure is adjusted mostly and is all through automatically controlled control sediment stuff pump rotational speed and then pressure regulation among the prior art has been solved.
Description
Technical Field
The invention relates to the technical field of slurry pumps, in particular to an explosion-proof slurry pump system.
Background
The slurry pump is a machine that increases the energy of a solid-liquid mixed medium by the action of centrifugal force (rotation of an impeller of the pump), and the liquid is thrown from the center of the impeller to the outer edge by the action of centrifugal force and gets energy, and leaves the outer edge of the impeller at a high speed to enter the volute casing. In the volute pump casing, the liquid is decelerated due to the gradual expansion of the flow passage, part of kinetic energy is converted into static pressure energy, and finally flows into the discharge pipeline at a higher pressure to be sent to a required place. The method is mainly applicable to: industry fields such as mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and the like.
In the prior art, the slurry pump detects the pressure in the pump through devices such as a pressure sensor, if the pressure in the slurry pump is too high, the rotating speed of the slurry pump is reduced for decompression, the rotating speed of the slurry pump is regulated by matching with other electric control elements, and the pressure is not regulated by changing the size of an inlet and an outlet in the prior art.
Disclosure of Invention
The invention provides an explosion-proof slurry pump system, which solves the problem that the pressure regulation of the slurry pump in the related art is mainly realized by controlling the rotating speed of the slurry pump through electric control so as to regulate the pressure.
The technical scheme of the invention is as follows:
an explosion-proof slurry pump system comprising a pump housing and an impeller assembly disposed within the pump housing, the pump housing having an inlet and an outlet, and further comprising;
the pressure detection component is arranged on the pump shell and is used for detecting the pressure in the slurry pump;
a flow restrictor assembly disposed on the pump housing, the flow restrictor assembly being located at the inlet, the flow restrictor assembly comprising:
the swing blades are provided with a plurality of swing blades, and are circumferentially arranged on the inner wall of the inlet at intervals;
the telescopic parts are arranged on the pump shell at intervals, correspond to the swing blades one by one and are used for driving the swing blades to swing.
As a further technical solution, the pressure detecting assembly includes:
the sliding rod is arranged on the pump shell in a sliding way, and the sliding direction of the sliding rod enters or leaves the inside of the pump shell;
the first cylinder body is arranged on the pump shell, the sliding rod slides along the first cylinder body, sliding seal is arranged between the sliding rod and the first cylinder body, hydraulic oil is arranged between the first cylinder body and the sliding rod, and the first cylinder body is communicated with the telescopic piece;
and the two ends of the elastic part are respectively arranged on the sliding rod and the first cylinder body, and the elastic part is used for providing the sliding force of the sliding rod to the inside of the pump shell.
As a further technical solution, the telescopic member includes:
the second cylinder body is arranged on the pump shell and is communicated with the first cylinder body;
the telescopic rod penetrates through the pump shell and is arranged in the second cylinder body in a sliding mode.
As a further technical solution, a plurality of the swing blades surround the inner wall of the outlet to form a circle, and the swing blades include:
the base plate is arranged on the pump shell and is in butt joint with the inner wall of the inlet;
the swinging plate is arranged at one end of the base plate, which is far away from the inside of the pump shell, and is provided with two grooves which are respectively positioned at two ends of the swinging plate along the parallel direction of the inlet axis.
As a further technical scheme, the two grooves are respectively positioned on the inner wall and the outer wall of the swinging plate.
As a further technical scheme, the method further comprises:
the blocking part comprises a blocking part and an extending part, one end of the blocking part is arranged at one end of the extending part, the blocking part and the extending part are respectively provided with a through hole, the two through holes are communicated and communicated with the inlet, the other end of the extending part is arranged on the base plate, the other end of the blocking part is arranged on the pump shell, a blocking space is formed by the blocking part, the extending part and the pump shell, and the swinging plate is positioned in the blocking space.
As a further technical scheme, the pressure detection assembly is provided with a plurality of pressure detection assemblies, the pressure detection assemblies are all arranged on the pump shell, and the pressure detection assemblies are communicated with the second cylinder body.
The working principle and the beneficial effects of the invention are as follows:
1. according to the invention, through the linkage of the pressure detection component and the flow limiting component, the pressure regulation of the slurry pump is realized, and the flow limiting component reduces the amount of the slurry entering the slurry pump, so that the pressure of the slurry pump is reduced;
2. according to the invention, the pressure detection assembly acts, the hydraulic oil drives the telescopic piece to stretch out and draw back, so that the swinging plate is driven to swing, the diameter of the inlet is reduced, and the amount of slag slurry entering the slag slurry pump is reduced;
3. according to the invention, the blocking piece is used for blocking the slurry, so that leakage of the slurry is avoided.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 2;
FIG. 4 is a partial cross-sectional view of the present invention;
FIG. 5 is an enlarged view of the invention at B in FIG. 4;
FIG. 6 is a schematic view of a swing blade structure according to the present invention;
in the figure: 1. pump case, 2, impeller assembly, 3, inlet, 4, outlet, 5, pressure detection assembly, 6, flow limiting assembly, 7, swing blade, 8, telescopic member, 9, slide bar, 10, first cylinder, 11, elastic member, 12, second cylinder, 13, telescopic bar, 14, base plate, 15, swing plate, 16, groove, 17, blocking member, 18, through hole.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-6, the present embodiment proposes
An explosion-proof slurry pump system comprises a pump shell 1, an impeller assembly 2 arranged in the pump shell 1, an inlet 3 and an outlet 4 of the pump shell 1, and a pump body, wherein the pump body is provided with a pump body;
the pressure detection assembly 5 is arranged on the pump shell 1, and the pressure detection assembly 5 is used for detecting the pressure in the slurry pump;
a flow restrictor assembly 6 disposed on the pump housing 1, the flow restrictor assembly 6 being located at the inlet 3, the flow restrictor assembly 6 comprising:
the oscillating blades 7 are provided with a plurality of circumferentially spaced on the inner wall of the inlet 3;
the telescopic parts 8 are provided with a plurality of circumferentially spaced parts, the telescopic parts 8 are arranged on the pump shell 1 in one-to-one correspondence with the swinging blades 7, and the telescopic parts 8 are used for driving the swinging blades 7 to swing.
In this embodiment, in order to realize pressure adjustment without changing the rotation speed of the slurry pump, a pressure detection assembly 5 and a flow limiting assembly 6 are arranged on the slurry pump, the pressure in the slurry pump is detected by the pressure detection assembly 5, and when the pressure is too high, the size of an inlet 3 of the slurry pump is changed by the flow limiting assembly 6, so that the inlet amount of slurry is changed, and the pressure of the slurry pump is changed; the method specifically comprises the following steps:
when the pressure detection assembly 5 detects that the pressure in the slurry pump is overlarge, the telescopic piece 8 can drive the swing blade 7 to rotate by a certain angle, which is equivalent to inserting a plurality of baffles at the inlet 3, and the swing blade 7 can block the slurry from entering the slurry pump, so that the suction amount of the slurry pump is reduced, and the pressure of the slurry pump is reduced.
Further, the pressure detecting assembly 5 includes:
the sliding rod 9 is arranged on the pump shell 1 in a sliding way, and the sliding direction of the sliding rod 9 is the direction of entering or leaving the inside of the pump shell 1;
the first cylinder body 10 is arranged on the pump shell 1, the sliding rod 9 slides along the first cylinder body 10, sliding seal is arranged between the sliding rod 9 and the first cylinder body 10, hydraulic oil is arranged between the first cylinder body 10 and the sliding rod 9, and the first cylinder body 10 is communicated with the telescopic part 8;
the elastic member 11 is provided at both ends thereof on the slide rod 9 and the first cylinder 10, respectively, and the elastic member 11 is used to provide a force for sliding the slide rod 9 into the pump housing 1.
In this embodiment, in order to realize that the pressure detection assembly 5 and the flow limiting assembly 6 realize the linkage, when the pressure in the slurry pump increases, the sliding rod 9 slides towards the inside of the first cylinder body 10, hydraulic oil is extruded into the telescopic member 8, and the telescopic member 8 drives the swing blade 7 to act, thereby realizing the linkage of the pressure detection assembly 5 and the flow limiting assembly 6. Thus, the adjustment of the slurry pump pressure can be realized without the operation of personnel or the access of an electric control element. When the pressure in the slurry pump is reduced, the sliding rod 9 is pushed to gradually enter the pump shell 1 under the action of the elastic part 11, and when the elastic part 11 provides the force for the sliding rod 9 to enter the pump shell 1, the slurry in the inlet 3 also provides the force for resetting the swing blades 7, so that hydraulic oil flows back into the first cylinder body 10, the flow rate of the inlet 3 is increased, and the slurry pump returns to normal operation. The automatic adjustment of the pressure in the slurry pump is realized, and the rotating speed of the slurry pump is not required to be adjusted.
Further, the telescopic member 8 includes:
a second cylinder 12 provided on the pump housing 1, the second cylinder 12 communicating with the first cylinder 10;
the telescopic rod 13 is slidably disposed in the second cylinder 12 through the pump housing 1.
In this embodiment, the structure of the telescopic member 8 is described, specifically: when the sliding rod 9 enters the first cylinder body 10, hydraulic oil enters the second cylinder body 12 through the pipeline, the telescopic rod 13 is pushed to move, and the telescopic rod 13 drives the swing blade 7 to swing.
Further, a plurality of oscillating vanes 7 are wound around the inner wall of the outlet 4 in a circle, and the oscillating vanes 7 include:
a base plate 14 provided on the pump housing 1 and abutting against the inner wall of the inlet 3;
the swinging plate 15 is arranged at one end of the base plate 14 far away from the interior of the pump shell 1, the swinging plate 15 is provided with two grooves 16, and the two grooves 16 are respectively positioned at two ends of the swinging plate 15 along the parallel direction of the axis of the inlet 3.
In the present embodiment, the structure of the swing blade 7 is described in detail: the base plate 14 is fixedly arranged on the inner wall of the inlet 3, the swinging plate 15 is flexibly connected with the base plate 14, and can be integrally made of a bendable and resettable material; the telescopic rod 13 is hinged to the swing plate 15, and when the telescopic rod 13 stretches, the swing plate 15 swings. In order to increase the blocking effect of the swinging plates 15, the swinging blades 7 form a circle at the position of the inlet 3, one end of each two adjacent swinging plates 15, which is close to each other, is provided with a groove 16, the two grooves 16 are arranged in a vertically staggered mode, namely, when the swinging plates 15 swing, the two swinging plates 15 can form lap joint, and leakage of slurry can be avoided. After all the swinging plates 15 swing, the diameter of the inlet 3 is reduced due to the lap joint between the swinging plates 15, the amount of slurry entering the slurry pump is reduced, and the pressure in the slurry pump is gradually reduced at the same rotating speed. Preferably, when the swing plate 15 is not swung, the end of the adjacent swing plate 15 close to the end is abutted, and leakage is also prevented.
Further, two grooves 16 are provided on the inner wall and the outer wall of the swing plate 15, respectively.
In this embodiment, in order to avoid excessive slurry pressure, the pressing portion swings the swing plates 15, and two grooves 16 on each swing plate 15 are respectively located on the inner wall and the outer wall of the swing plate 15, that is, each swing plate 15 will overlap the outer wall of the last swing plate 15, when the slurry pressure is excessive, the next swing plate 15 presses the last swing plate 15, so that the swing plates 15 will not act alone, and leakage will not occur.
Further, the method further comprises the following steps:
the blocking part 17, the blocking part 17 includes blocking part and extension, and blocking part one end sets up in extension one end, and blocking part and extension all have through hole 18, and two through hole 18 intercommunication and with import 3 intercommunication, the extension other end sets up on base plate 14, and the blocking part other end sets up on pump case 1, and blocking part, extension and pump case 1 form and block the space, and swing plate 15 is located and blocks the space.
In this embodiment, in order to further ensure the tightness of the swing plate 15, a blocking space is formed by the blocking member 17, the base plate 14 and the pump housing 1, that is, when the swing plate 15 swings, the blocking member 17 is pulled to act (the blocking member 17 is preferably made of elastic material, the blocking member 17 can also be a long soft material), the blocking member 17 expands, and since the blocking member 17 is integrated, slurry cannot leak. Preferably, the end of the blocking part is positioned between the connecting flange of the slurry pump and the connecting pipe, the blocking part is fixed through the connecting flange, when the internal pressure of the slurry pump is particularly high, the swinging angle of the swinging plate 15 is large, the blocking part can be dragged to move, after the blocking part is separated from the two flanges, a gap is formed between the two flanges, slurry leakage is generated, the pressure of the slurry pump is reduced, and the damage of the slurry pump is avoided because the pressure in the slurry pump is excessively high.
Further, the pressure detecting members 5 are provided in plural numbers, each provided on the pump housing 1, and the plural pressure detecting members 5 are communicated with the second cylinder 12.
In this embodiment, a plurality of pressure detection components 5 detect simultaneously, detect more accurately, have also guaranteed that expansion piece 8 action is accurate.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. An explosion-proof slurry pump system comprising a pump housing (1) and an impeller assembly (2) arranged in the pump housing (1), the pump housing (1) having an inlet (3) and an outlet (4), characterized by further comprising;
the pressure detection assembly (5) is arranged on the pump shell (1), and the pressure detection assembly (5) is used for detecting the pressure in the slurry pump;
a flow restrictor assembly (6) disposed on the pump housing (1), the flow restrictor assembly (6) being located at the inlet (3), the flow restrictor assembly (6) comprising:
the swing blades (7) are provided with a plurality of circumferentially spaced on the inner wall of the inlet (3);
the telescopic parts (8) are arranged on the pump shell (1) at intervals, the telescopic parts (8) correspond to the swinging blades (7) one by one, and the telescopic parts (8) are used for driving the swinging blades (7) to swing.
2. An explosion-proof slurry pump system according to claim 1, wherein the pressure detection assembly (5) comprises:
the sliding rod (9) is arranged on the pump shell (1) in a sliding manner, and the sliding direction of the sliding rod (9) is in or out of the pump shell (1);
the first cylinder body (10) is arranged on the pump shell (1), the sliding rod (9) slides along the first cylinder body (10), sliding sealing is formed between the sliding rod (9) and the first cylinder body (10), hydraulic oil is arranged between the first cylinder body (10) and the sliding rod (9), and the first cylinder body (10) is communicated with the telescopic piece (8);
and the two ends of the elastic piece (11) are respectively arranged on the sliding rod (9) and the first cylinder body (10), and the elastic piece (11) is used for providing the sliding force of the sliding rod (9) to the inside of the pump shell (1).
3. An explosion-proof slurry pump system according to claim 2, wherein the telescopic member (8) comprises:
a second cylinder (12) arranged on the pump housing (1), the second cylinder (12) being in communication with the first cylinder (10);
and the telescopic rod (13) penetrates through the pump shell (1) and is arranged in the second cylinder body (12) in a sliding way.
4. An explosion-proof slurry pump system according to claim 1, wherein a number of the oscillating vanes (7) are wound around the inner wall of the outlet (4) in a circle, the oscillating vanes (7) comprising:
a base plate (14) arranged on the pump shell (1) and abutted against the inner wall of the inlet (3);
the swinging plate (15) is arranged at one end of the base plate (14) far away from the inside of the pump shell (1), two grooves (16) are formed in the swinging plate (15), and the two grooves (16) are respectively arranged at two ends of the swinging plate (15) along the axis parallel direction of the inlet (3).
5. An explosion-proof slurry pump system according to claim 4, wherein two grooves (16) are provided on the inner and outer walls of the wobble plate (15), respectively.
6. The explosion-proof slurry pump system as set forth in claim 4, further comprising:
the blocking part (17), the blocking part (17) includes blocking part and extension, blocking part one end sets up extension one end, blocking part with the extension all has through hole (18), two through hole (18) intercommunication and with import (3) intercommunication, the extension other end sets up on base plate (14), the blocking part other end sets up on pump case (1), blocking part extension with pump case (1) forms and blocks the space, swing board (15) are located in the blocking space.
7. An explosion-proof slurry pump system according to claim 3, wherein the pressure detection assemblies (5) are arranged on the pump housing (1), and the pressure detection assemblies (5) are communicated with the second cylinder body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311066921.3A CN116857206A (en) | 2023-08-23 | 2023-08-23 | Explosion-proof slurry pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311066921.3A CN116857206A (en) | 2023-08-23 | 2023-08-23 | Explosion-proof slurry pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116857206A true CN116857206A (en) | 2023-10-10 |
Family
ID=88223729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311066921.3A Pending CN116857206A (en) | 2023-08-23 | 2023-08-23 | Explosion-proof slurry pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116857206A (en) |
-
2023
- 2023-08-23 CN CN202311066921.3A patent/CN116857206A/en active Pending
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