CN216092481U - Prevent long-pending sewage pump station that becomes silted up - Google Patents

Abstract

The utility model relates to the technical field of water supply and drainage pump stations, in particular to a sludge-accumulation-preventing sewage pump station, which comprises a water collecting tank and an equipment well, wherein the equipment well is provided with a sewage pump and a sludge pump, and the outlet of the sewage pump is connected with the outlet of the sludge pump; the sludge pump adopts a displacement pump, and an inlet is arranged at the bottom of the water collecting tank; the inlet of the sewage pump is arranged above the inlet of the sludge pump. Larger particles in the sewage are deposited on the sludge layer and then pass through the displacement pump as the sludge pump, so that the abrasion of the sewage pump is greatly reduced. The sludge pump adopts a displacement pump, and the abrasion generated by particles is small. And the sludge pump discharges the slurry in the sludge layer after the slurry meets the outlet of the sewage pump, and the sludge solid particles are discharged to a water treatment device in the next step, so that the workload of the discharged sludge conveying is reduced. The double-layer filtering grating is arranged, so that the filtering efficiency can be improved. And, the grid filtration capacity of inlayer is bigger, sets to detachable mechanism, mainly during the clearance the inlayer side bars can, has also reduced work load.

Description

Prevent long-pending sewage pump station that becomes silted up

Technical Field

The utility model relates to the technical field of water supply and drainage pump stations, in particular to a sludge accumulation prevention sewage pump station.

Background

The sewage pump station that extensively uses widely at present adopts corrosion-resistant glass steel as the main structure body, generally adopts the barrel structure, and is prefabricated in the mill to device such as integrated water pump wherein. In order to prevent the sludge from being released from silting, an anti-silting device is mostly arranged at the bottom. The technical route of the anti-siltation device can be divided into two types, one is to discharge sludge outwards, such as adding a sludge pump; the other method is to refine the sludge particles more, so that the sludge particles are pumped out of the water pump along with the sewage and enter the next treatment device.

In the first mode, an additional sludge pump system is needed, the discharged sludge needs to be transported away, and most of water is mixed in the sludge, so that the work is large. The second mode can utilize the treatment particles of subsequent treatment equipment, but has larger abrasion to the impeller of the sewage pump, and is not beneficial to the durable operation of the equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-silting sewage pump, which solves the defects of two treatment modes in the background technology, can save the workload and reduce the abrasion to the water pump, and has the following specific scheme.

An anti-silting sewage pump comprises a collecting tank and an equipment well, wherein the equipment well is provided with a sewage pump and a sludge pump, and the outlet of the sewage pump is connected with the outlet of the sludge pump; the sludge pump adopts a displacement pump, and an inlet is arranged at the bottom of the water collecting tank; the inlet of the sewage pump is arranged above the inlet of the sludge pump.

Larger particles in the sewage are deposited on the sludge layer and then pass through the displacement pump as the sludge pump, so that the abrasion of the sewage pump is greatly reduced. The sludge pump adopts a displacement pump, and the abrasion generated by particles is small. And the sludge pump discharges the slurry in the sludge layer after meeting with the outlet of the sewage pump, and the sludge solid particles are discharged to a water treatment device in the next step, so that the workload of conveying the discharged sludge is saved.

Further improvement, be equipped with half division cage filter grid in the catch basin, half division cage filter grid's open side is towards the catch basin water inlet.

In a further improvement, the semi-open cage type filtering grid is provided with three side grids and a bottom grid, one side surface is open, the top surface is open, and the open side surface faces to a water inlet of the water collecting tank.

Further improvement, the side bars of the semi-open cage type filtering grid are set to be of a double-layer structure, and the inner layer side bars and the outer layer side bars are detachably connected.

In a further improvement, the inner layer side grid is clamped with the outer layer side grid.

In a further improvement, the back blowing device is arranged on the inner wall of the water collecting tank close to the semi-open cage type filtering grid.

The improved sludge pump is characterized in that the bottom of the water collecting tank is in a concave conical shape, and the sludge pump inlet is located at the conical top of the concave conical shape.

In a further improvement, the side inner wall of the concave cone is provided with a disturbing device.

In a further improvement, the disturbing device comprises an external high-pressure water source and a disturbing sprayer connected with the high-pressure water source through a pipeline, and the disturbing sprayer is arranged on the side inner wall of the concave cone.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the anti-silting sewage pump station provided by the utility model, on one hand, larger particles in sewage are deposited on a sludge layer and pass through the positive displacement pump serving as a sludge pump, so that the abrasion of the sewage pump is greatly reduced. The sludge pump on the other side enables the slurry on the sludge layer to be converged with the outlet of the sewage pump and then discharged, and the sludge solid particles are discharged to a water treatment device on the next step, so that the workload of conveying the discharged sludge is saved.

(2) The double-layer filtering grating is arranged, so that the filtering efficiency can be improved. And, the grid filtration capacity of inlayer is bigger, sets it to detachable mechanism, mainly during the clearance inlayer side bars can, has also reduced work load.

(3) The bottom of the water collecting tank is arranged to be a concave cone, the sludge pump inlet 21 is arranged at the conical top, and solid particles are easy to settle at the sludge pump inlet and are sucked away by the sludge pump. And the side inner wall of the concave conical shape is provided with a disturbing device, so that the siltation prevention effect is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application, and in which:

FIG. 1 is a schematic view of the overall structure of an anti-silting sewage pump station according to the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 according to the present invention;

in the figure, the position of the upper end of the main shaft,

1. a water collecting tank;

11. a water inlet of the water collecting tank;

2. a sludge pump;

21. a sludge pump inlet;

22. a sludge pump outlet;

3. a sewage pump;

31. an inlet of a sewage pump;

32. an equipment well access port;

4. a sludge layer;

5. semi-open cage type filtering grids;

51. an inner layer side gate;

52. an outer layer side grid;

521. a clamping block;

6. a back flushing device;

61. a blowback nozzle;

7. a perturbation device;

71. disturbing the spray head;

8. and (4) an equipment well.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As described in the background art, the existing device for preventing the sewage pumping station from silting is large in work, so that the impeller of the sewage pump is abraded greatly in a charming mode, and the device is not favorable for the lasting operation of the equipment. The sewage pump station of preventing silting that this embodiment provided can practice thrift work load, reduces the wearing and tearing to the water pump again.

As shown in fig. 1-3, the anti-silting sewage pump station comprises a cylindrical water collecting tank 1 made of glass fiber reinforced plastic and an equipment well 8, wherein a half-open cage type filter grid 5 is arranged in the water collecting tank 1, and the open side of the half-open cage type filter grid 5 faces to a water inlet 11 of the water collecting tank. The bottom of the water collecting tank is provided with an inlet of a sludge pump 2 which is marked as a sludge pump inlet 21. The equipment well 8 is provided with a sludge pump 2 and a sewage pump 3. The inlet of the sewage pump 3 is arranged obliquely above the inlet of the sludge pump 2 and is marked as a sewage pump inlet 31. The sludge pump outlet 22 and the sewage pump outlet 32 are connected with the collecting tank outlet 12 after being converged through a pipeline. For the sake of simplicity in the representation of fig. 1, the pipelines at the outlet of the sludge pump 2 and the sewage pump 3 are shown by dashed lines (dashed lines on the right side of fig. 1).

Sewage enters the semi-open cage type filtering grille 5 through the water inlet 11 of the water collecting tank, impurities are filtered and accumulated in the water collecting tank 1, and partial particles sink to gradually form a sludge layer 4 (below a dotted line). A sewage pump inlet 31 above the sludge layer 4 sucks sewage, the sewage enters the sewage pump 3 and is discharged from a sewage pump outlet 32, and the sewage pump 3 is a centrifugal pump; the sludge in the sludge layer 4 enters the sludge pump 2 after entering the sludge pump inlet 21, then is discharged from the sludge pump outlet 22 and meets a sewage pipeline of the sewage pump outlet 32, and the sludge pump 2 adopts a positive displacement pump.

Because the bigger particles in the sewage are deposited on the sludge layer and then pass through the displacement pump as the sludge pump, the abrasion of the sewage pump is greatly reduced. The sludge pump adopts a displacement pump, and the abrasion generated by particles is small. And the sludge pump discharges the slurry in the sludge layer after meeting with the outlet of the sewage pump, and the sludge solid particles are discharged to a water treatment device in the next step, so that the workload of conveying the discharged sludge is saved.

The half-open cage type filtering grid 5 is in a vertically longer cage type, the horizontal interface can be in a trapezoid shape or a fan-shaped shape, and the fan-shaped shape is shown in the figure. The semi-open cage type filtering grid is provided with three side grids and a bottom grid, one side surface is open, the top surface is open, and the open side surface faces to the water inlet 11 of the water collecting tank. Half open cage filter grid 5 is fixed with the inner wall of catch basin 1 through the mode of riveting or joint.

As an improvement, the side grids of the half-open cage type filter grid 5 can be set to be a double-layer structure, the inner layer side grid 51 and the outer layer side grid 52 are detachably connected, and the outer frame of the inner layer side grid 51 is surrounded and clamped by the inner frame of the outer layer side grid 52 and the inner wall of the water collecting tank. In order to be clamped, a clamping block 521 is arranged at the lower part of the outer layer side grid 52 and plays a role in clamping and supporting.

The double-layer filtering grid can improve the filtering efficiency. Moreover, the filtering capacity of the inner-layer grating is larger, the inner-layer grating is arranged into a detachable mechanism, the inner-layer side grating 51 is mainly cleaned during cleaning, and the workload is also reduced.

And a back flushing device 6 is also arranged around the semi-open cage type filter grid 5, and when the grid is not seriously blocked by introducing external high-pressure water, the back flushing device 6 is adopted for back flushing to maintain the normal use of the semi-open cage type filter grid. Specifically, the blowback nozzle 61 of the blowback device 6 is installed near the inner wall of the collecting tank of the half-open cage type filtering grill.

In order to facilitate the sludge pump to suck away sludge slurry, the bottom of the water collecting tank 1 is arranged to be a concave cone, the sludge pump inlet 21 is arranged at the conical top position, and solid particles are easy to settle at the sludge pump inlet 21 and are sucked away by the sludge pump. The side inner wall of the concave conical shape is provided with a disturbing device 7 for disturbing the slurry in the conical space, which is more beneficial to the pumping effect of the sludge pump. For the sake of simplicity, the high-pressure water lines of the blowback device 6 and the disturbing device 7 are shown by broken lines (broken lines on the left side of fig. 1).

The working principle of the disturbing device 7 is the same as that of the back-blowing device 6, the same high-pressure water source is adopted, and the disturbing spray head 71 of the disturbing device 7 is arranged in the concave cone at the bottom of the water collecting tank 1. The back-blowing device 6 does not work at ordinary times, when more sludge deposited at the bottom of the water collecting tank 1 or adhesion is generated and the sludge pump cannot effectively suck away the sludge, the disturbing device 7 is opened to suck away the deposited sludge particles by the sludge pump, so that the sludge deposition prevention effect is better.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (9)

1. An anti-silting sewage pump station, which comprises a water collecting tank and an equipment well, wherein the equipment well is provided with a sewage pump and a sludge pump,

the outlet of the sewage pump is connected with the outlet of the sludge pump;

the sludge pump adopts a displacement pump, and an inlet is arranged at the bottom of the water collecting tank; the inlet of the sewage pump is arranged above the inlet of the sludge pump.

2. The sewage pump station for preventing sludge accumulation according to claim 1, wherein a half-open cage type filtering grid is arranged in the collecting tank, and the open side of the half-open cage type filtering grid faces to a water inlet of the collecting tank.

3. The sewage pumping station for sludge prevention according to claim 2, wherein the half-open cage type filtering grid has three side grids, one bottom grid, one side grid open and the top grid open.

4. The anti-silting sewage pump station according to claim 3, wherein the side grating of the half-open cage type filtering grating is a double-layer structure, and the inner side grating is detachably connected with the outer side grating.

5. The anti-siltation sewage pump station according to claim 4, characterised in that said inner side grate is snap-fitted to said outer side grate.

6. The anti-silting sewage pump station according to claim 4, wherein the half-open cage type filter grate is provided with a back-blowing device, and the back-blowing device is provided near the inner wall of the collecting tank of the half-open cage type filter grate.

7. The anti-silting sewage pump station according to claim 1, wherein the bottom of the collecting tank is provided with a concave cone shape, and the sludge pump inlet is positioned at the top of the concave cone shape.

8. The anti-pooling sewage pump station of claim 7 wherein said concave tapered side inner walls are provided with a disturbance device.

9. The anti-silting sewage pump station according to claim 8, wherein the agitating means comprises an external high pressure water source and an agitating nozzle connected to the high pressure water source through a pipe, the agitating nozzle being provided on a side inner wall of the concave cone.

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