CN220015584U - Mining multistage centrifugal pump suction pipeline secondary filter equipment - Google Patents

Abstract

The utility model discloses a secondary filtering device of a suction pipeline of a mining multistage centrifugal pump, which comprises a first vertical straight pipe and a primary filter screen arranged at the lower end of the first vertical straight pipe, and is characterized in that: the utility model discloses a mining multistage centrifugal pump suction pipeline secondary filter device, including three-way box, including first straight tube, second straight tube, third tube, filter component, inspection cover and filter component, the upper end of first straight tube is equipped with the return bend, the right-hand tee bend that is equipped with of return bend, the right-hand tee bend is equipped with the tee bend, both ends all are equipped with the second straight tube about the tee bend, the left side the left end of second straight tube with the upper end intercommunication of return bend, be equipped with the filter component who filters the fritter impurity between tee bend and the right side second straight tube, the top of tee bend is equipped with the tee bend case, the top of tee bend case is equipped with the fixed subassembly of fixed inspection cover, filter component includes ring channel, first sealing washer and second filter screen, and this kind of mining multistage centrifugal pump suction pipeline secondary filter device has possessed secondary filtration, reduces impurity content, reduces impurity pair pump wearing and lasting high-efficient filtration's advantage.

Description

Mining multistage centrifugal pump suction pipeline secondary filter equipment

Technical Field

The utility model relates to the technical field of pipeline filtration, in particular to a secondary filtration device for a suction pipeline of a mining multistage centrifugal pump.

Background

The mine is inclined shaft, vertical shaft, footrill, etc. in underground development of mine, the mine can seep out of underground water in development process, usually the underground water is discharged by centrifugal pump, the centrifugal pump is a pump for conveying liquid by centrifugal force produced by impeller rotation, the centrifugal pump has several forms of vertical, horizontal, single stage, multi-stage, single suction, double suction and self suction, etc., in which the multi-stage centrifugal pump is formed from several centrifugal pumps with identical functions, and the multi-stage centrifugal pump is formed from several centrifugal pumps which are combined together, and the fluid channel structure is characterized by that the medium pressure relief opening of first stage is communicated with inlet of second stage, and the medium pressure relief opening of second stage is communicated with inlet of third stage.

The multistage centrifugal pump is mainly used for discharging mine underground water, the mine underground water is in a sewage state generally, the impurities are more, the solid particle content is high, the abrasion is high, if the mine underground water enters the pump along with the water, the service life of the pump can be seriously influenced, in order to prevent the impurities from entering the pump, a filter screen is arranged at a suction pipe orifice and used for preventing the impurities from entering the pump, but in order not to influence the suction performance of the pump, the meshes of the filter screen cannot be too small, so that part of the impurities still enter the pump through the filter screen, the pump is worn, and the service life of the pump is shortened.

Therefore, a secondary filtering device of a suction pipeline of a mining multistage centrifugal pump is provided to solve the problems.

Disclosure of Invention

The utility model aims to provide a secondary filtering device of a suction pipeline of a mining multistage centrifugal pump, so as to solve the problems.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a mining multistage centrifugal pump suction pipeline secondary filter device, is including being vertical first straight tube and locating its lower extreme's one-level filter screen, its characterized in that: the upper end of first straight tube is equipped with the return bend, the right-hand tee bend that is equipped with of return bend, both ends all are equipped with the second straight tube about the tee bend, the left side the left end of second straight tube with the upper end intercommunication of return bend, be equipped with the filter equipment who filters little piece impurity between tee bend and the right side second straight tube, the top of tee bend is equipped with the tee bend case, the top of tee bend case is equipped with the inspection lid, the top of tee bend case is equipped with the fixed subassembly of fixed inspection lid.

Preferably, the filter component comprises annular grooves, a first sealing ring and a second-stage filter screen, the annular grooves are formed in opposite sides of the three-way pipe and the right side of the second straight pipe, the first sealing ring is arranged between the two annular grooves, and the second-stage filter screen is fixedly connected to the inner side of the first sealing ring.

Preferably, the fixed subassembly includes clamping lever, spring, stopper, fixture block, standing groove, two horizontal interval distributions of top fixedly connected with of tee bend case and upwards run through the clamping lever of inspection lid, the standing groove has been seted up to the inside of clamping lever, the spring has been placed to the inside of standing groove, the equal fixedly connected with stopper in both ends of spring, two the equal fixedly connected with in opposite sides of stopper runs through to the clamping lever outside and rather than sliding connection's fixture block, the top of fixture block be the inclined plane and its bottom with inspection lid top contacts.

Preferably, the inside wall fixedly connected with annular piece of tee bend case, annular confined draw-in groove has been seted up at the top of annular piece, place in the draw-in groove with the second sealing washer of inspection lid mutual extrusion.

Preferably, a visual window is arranged at the top of the inspection cover.

Preferably, the third sealing rings are arranged at the joints of the first straight pipe, the bent pipe, the left second straight pipe and the three-way pipe.

Preferably, a handle is fixedly connected to the top of the inspection cover.

Preferably, the pore size of the primary filter screen is larger than that of the secondary filter screen.

Compared with the prior art, the utility model has the beneficial effects that: 1. through the cooperation of first straight tube, first filter screen, return bend, three-way pipe, second straight tube and filter component, install filter equipment between three-way pipe and second straight tube, carry out secondary filtration to mine groundwater to possess secondary filtration, reduce impurity content, reduce impurity to the advantage of pump wearing and tearing.

2. Through the cooperation of three-way pipe, second straight tube, filter component, inspection lid and fixed subassembly, remove fixed subassembly to the fixed of inspection lid, then dismantle the inspection lid, observe whether there is the impurity on the filter component to clear away the impurity, improved the practicality of equipment, thereby possessed the advantage that lasts high-efficient filtration.

Drawings

The present utility model is further illustrated by the accompanying drawings, which are not to be construed as limiting the utility model in any way.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

FIG. 3 is a schematic view of the three-way pipe structure of the present utility model;

fig. 4 is an enlarged view of the utility model at a.

In the accompanying drawings: 1. a first straight tube; 2. a first-stage filter screen; 3. bending the pipe; 4. a three-way pipe; 5. a second straight tube; 6. an annular groove; 7. a first seal ring; 8. a second-stage filter screen; 9. a three-way box; 10. checking the cover; 111. a clamping rod; 112. a spring; 113. a limiting block; 114. a clamping block; 115. a placement groove; 12. an annular block; 13. a second seal ring; 14. a visual window; 15. and a third sealing ring.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" means two or more, and the meaning of "a number" means one or more, unless specifically defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In this embodiment, as shown in fig. 1 to 4, a secondary filtering device for a suction pipeline of a mining multistage centrifugal pump, the present utility model includes a first vertical straight pipe 1 and a primary filter screen 2 disposed at the lower end thereof, and is characterized in that: the upper end of first straight tube 1 is equipped with return bend 3, and the right-hand three-way pipe 4 that is equipped with of return bend 3, the both ends all are equipped with the second straight tube 5 of filtration fritter impurity about three-way pipe 4, and the left end of left side second straight tube 5 communicates with the upper end of return bend 3, is equipped with filter unit between three-way pipe 4 and the right side second straight tube 5, and the top of three-way pipe 4 is equipped with tee bend case 9, and the top of tee bend case 9 is equipped with inspection lid 10, and the top of tee bend case 9 is equipped with the fixed subassembly of fixed inspection lid 10.

In this embodiment, connect through the fastener between each pipeline, connect centrifugal pump and right side second straight tube 5 together, the one end that first straight tube 1 was connected with first level filter screen 2 is put into mine groundwater, and start the centrifugal pump, big impurity in the mine groundwater is filtered, get into first straight tube 1 by the mine groundwater of primary filtration, return bend 3, left side second straight tube 5 and tee bend 4, when the mine groundwater of primary filtration passes through between tee bend 4 and the right side second straight tube 5, can filter little impurity wherein by filtering element, and then become secondary filtration mine groundwater and get into the centrifugal pump, reduce the wearing and tearing of impurity to the pump, the life of pump has been improved, simultaneously in the use or after the use is finished, remove fixed subassembly to inspection lid 10, dismantle it, the tiny impurity of discharge filtration, the practicality of the device has been improved, make the device can last high-efficient filtration.

Preferably, as another embodiment of the utility model, the filtering component comprises an annular groove 6, a first sealing ring 7 and a second filter screen 8, the annular groove 6 is arranged on the opposite sides of the three-way pipe 4 and the right second straight pipe 5, the first sealing ring 7 is arranged between the two annular grooves 6, the second filter screen 8 is fixedly connected to the inner side of the first sealing ring 7, and the aperture of the first filter screen 2 is larger than that of the second filter screen 8.

In this embodiment, through the cooperation of ring channel 6 and first sealing washer 7, can carry out sealed processing between three-way pipe 4 and the second straight tube 5, avoid appearing leaking gas or leaking the condition, simultaneously through being connected second grade filter screen 8 and first sealing washer 7 inboard, utilize the centre gripping between three-way pipe 4 and the second straight tube 5 or not centre gripping, can fix and change sealing washer 7, the little impurity of secondary filter screen 8 filterable out of aperture.

Preferably, as another embodiment of the present utility model, the fixing component includes a clamping rod 111, a spring 112, a limiting block 113, a clamping block 114 and a placing groove 115, wherein the top of the three-way box 9 is fixedly connected with two clamping rods 111 which are transversely spaced and upwardly penetrate through the inspection cover 10, the placing groove 115 is formed in the clamping rod 111, the spring 112 is placed in the placing groove 115, the limiting blocks 113 are fixedly connected to two ends of the spring 112, the opposite sides of the two limiting blocks 113 are fixedly connected with clamping blocks 114 which penetrate through the outer sides of the clamping rods 111 and are slidably connected with the clamping rods, and the top of the clamping blocks 114 is inclined and the bottom of the top of the clamping blocks contacts with the top of the inspection cover 10.

It should be noted that, the width of the limiting block 113 is greater than the width of the clamping block 114, the clamping block 114 can be limited, extrusion of the spring 112 is avoided, the penetrating part of the clamping column 111 and the inspection cover 10 is in sliding connection, in the use process, the clamping block 114 can limit the top end of the inspection cover 10, thereby achieving the effect of fixing the inspection cover 10, when the inspection cover 10 needs to be disassembled, only two clamping blocks 114 need to be extruded into the placing groove 115 by two hands, the limiting block 113 connected with the clamping blocks can extrude the spring 113, at the moment, the inspection cover 10 can be taken out and filtered impurities are removed, when the inspection cover 10 needs to be installed, the penetrating part of the clamping column 111 and the inspection cover 10 is butted and pressed down by the inspection cover 10, at the moment, the clamping block 114 can be extruded into the placing groove 115 along the inclined plane of the top of the clamping block, the limiting block 113 connected with the clamping block can extrude the spring 113 until the inspection cover 10 moves to the lower part of the clamping block 114, at the moment, the spring 112 is restored to be the original state, the clamping block 114 is extruded out of the clamping rod 111, and the inspection cover 10 is limited, and the inspection cover 10 is fixed on the three-way box 9.

Preferably, as another embodiment of the present utility model, the inner side wall of the three-way box 9 is fixedly connected with an annular block 12, the top of the annular block 12 is provided with an annular closed clamping groove, and a second sealing ring 13 mutually extruding with the inspection cover 10 is placed in the clamping groove and used for sealing the three-way box 9 by matching with the inspection cover 10, so that the equipment is kept in a negative pressure state when in use.

Preferably, as another embodiment of the present utility model, the top of the inspection cover 10 is provided with a visual window 14, so that a user can intuitively understand the condition of filtering impurities, and each joint of the first straight pipe 1, the bent pipe 3, the left second straight pipe 5 and the three-way pipe 4 is provided with a third sealing ring 15 for maintaining the tightness of the device, avoiding the condition of water leakage and air leakage, and the top of the inspection cover 10 is fixedly connected with a handle, so that the inspection cover 10 can be pulled or pressed conveniently.

Working principle: when the device is used, the right second straight pipe 5 is connected with the water inlet of the centrifugal pump, one end, connected with the first straight pipe 1 and the first-stage filter screen 2, of the first straight pipe is placed in mine underground water, the centrifugal pump is started, mine underground water is pumped into a pipeline, impurities with larger particles are filtered outside the first-stage filter screen 2, filtered mine underground water enters the first straight pipe 1 to become primary filtered mine underground water, small impurities in the primary filtered mine underground water are filtered out by the second-stage filter screen 8 when the primary filtered mine underground water passes through the space between the three-way pipe 4 and the right second straight pipe 5, the primary filtered mine underground water becomes secondary filtered mine underground water to enter the centrifugal pump, abrasion of impurities to the pump is reduced, the service life of the pump is prolonged, when excessive impurities are found through the visual window 14 or after the use is finished, two hands squeeze the two sides 114 into the placing groove 115, the limiting blocks 113 connected with the primary filter screen are squeezed to the spring 113, at the moment, the inspection cover 10 is pulled upwards, the filtered impurities can be taken out, and the filtered impurities are removed, the primary filter screen is installed and the primary filter screen is removed, the practicability of the device is improved, the sustainable filtering of the device is enabled.

In the description of the present specification, the descriptions of the terms "example," "an embodiment," "certain embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will occur to those skilled in the art from consideration of this specification without the exercise of inventive faculty, and such equivalent modifications and alternatives are intended to be included within the scope of the utility model as defined in the claims.

Claims (8)

1. The utility model provides a mining multistage centrifugal pump suction pipeline secondary filter device, is vertical first straight tube (1) and locates one-level filter screen (2) of its lower extreme, its characterized in that: the upper end of first straight tube (1) is equipped with return bend (3), the right-hand tee bend (3) is equipped with three-way pipe (4), both ends all are equipped with second straight tube (5) about three-way pipe (4), the left side the left end of second straight tube (5) with the upper end intercommunication of return bend (3), be equipped with the filter equipment who filters fritter impurity between three-way pipe (4) and right side second straight tube (5), the top of three-way pipe (4) is equipped with three-way box (9), the top of three-way box (9) is equipped with inspection lid (10), the top of three-way box (9) is equipped with the fixed subassembly of fixed inspection lid (10).

2. The mining multistage centrifugal pump suction pipeline secondary filter device according to claim 1, wherein the filter assembly comprises annular grooves (6), first sealing rings (7) and a secondary filter screen (8), the annular grooves (6) are formed in opposite sides of the tee pipe (4) and the right side of the second straight pipe (5), first sealing rings (7) are arranged between the two annular grooves (6), and the secondary filter screen (8) is fixedly connected to the inner side of each first sealing ring (7).

3. The mining multistage centrifugal pump suction pipeline secondary filter device according to claim 1, wherein the fixing assembly comprises clamping rods (111), springs (112), limiting blocks (113), clamping blocks (114) and a placing groove (115), the tops of the three-way boxes (9) are fixedly connected with two clamping rods (111) which are transversely distributed at intervals and upwards penetrate through the inspection cover (10), the placing groove (115) is formed in the clamping rods (111), the springs (112) are placed in the placing groove (115), limiting blocks (113) are fixedly connected to two ends of each spring (112), and the clamping blocks (114) penetrating through the outer sides of the clamping rods (111) and in sliding connection with the two limiting blocks are fixedly connected to the opposite sides of each limiting block (113), and the tops of the clamping blocks (114) are inclined surfaces and the bottoms of the clamping blocks are contacted with the tops of the inspection cover (10).

4. The mining multistage centrifugal pump suction pipeline secondary filter device according to claim 1, wherein an annular block (12) is fixedly connected to the inner side wall of the three-way box (9), an annular closed clamping groove is formed in the top of the annular block (12), and a second sealing ring (13) mutually extruded with the inspection cover (10) is placed in the clamping groove.

5. The mining multistage centrifugal pump suction pipeline secondary filtering device according to claim 1, wherein a visual window (14) is arranged at the top of the inspection cover (10).

6. The mining multistage centrifugal pump suction pipeline secondary filter device according to claim 1, wherein the joints of the first straight pipe (1), the bent pipe (3), the left second straight pipe (5) and the three-way pipe (4) are all provided with third sealing rings (15).

7. The mining multistage centrifugal pump suction pipeline secondary filtering device according to claim 1, wherein a handle is fixedly connected to the top of the inspection cover (10).

8. The mining multistage centrifugal pump suction pipeline secondary filter device according to claim 2, wherein the pore size of the primary filter screen (2) is larger than that of the secondary filter screen (8).