CN213870341U - Sand-proof deep-well pump - Google Patents

Abstract

The utility model discloses a sand control deep-well pump, including water pump and protection casing, the lower extreme of water pump is provided with the impeller, the water pump passes through the bearing with the protection casing and is connected, the upper end of protection casing is provided with the centrifugal chamber, the lower terminal surface of centrifugal chamber is provided with the filter, the side end face welding of filter has the filter mantle, the lower terminal surface of filter mantle is provided with the supporting seat, the interior terminal surface of supporting seat is provided with the anti-trap board, the interior terminal surface of filter mantle is provided with the axostylus axostyle, the bottom sliding connection of filter mantle has the closing plate, the upper end of closing plate is provided with the spring, the closing plate passes through spring and axostylus axostyle elastic connection. The utility model discloses at equipment bottom installation filter, through upwards pumping water the mode reduce water in grit content, through filter and filter mantle second grade filtration mode, promoted the grit and filtered the quality, the closing plate through elastic connection will filter the grit discharge who holds back, avoids interior grit to pile up and causes the jam, has promoted equipment performance and life greatly.

Description

Sand-proof deep-well pump

Technical Field

The utility model belongs to the technical field of the deep-well pump, specifically be a sand control deep-well pump.

Background

The deep well pump is a general water lifting machine with motor and water pump directly connected into one body and submerged in water, and its working principle is that after the pump is started, the motor can utilize sleeve coupling to drive motor shaft and pump shaft, the impeller can be rotated at high speed, the liquid in the impeller can be rotated together with blade, and can apply work to the liquid under the action of centrifugal force to convert the mechanical energy into liquid energy, the well water can be thrown out from the impeller, and the speed of the ejected liquid is gradually reduced in the diffusion chamber of pump shell, and its pressure is gradually increased, then the well water can be flowed out from discharge pipe of pump outlet.

The utility model discloses an automatically controlled automatic sand control's deep-well pump in mandate notice No. CN106678085B, the problem that deep-well pump downhole work is influenced by silt easily has been solved, its technical scheme main points are including the casing, the filter mantle, the casing down, the filter mantle sets up between last casing and lower casing, be provided with the first filter screen structure that can overturn towards the outside on the casing down, first filter screen structure includes a plurality of screen panels, connect the screen panel and the articulated elements of casing down, fix the first magnet that the screen panel deviates from articulated elements one end, the inboard of casing is provided with the electromagnetic mechanism that is used for forming with first magnet homopolar or unlike magnetic field down, intelligent sand prevention sand removal effect has been reached.

Above-mentioned a automatically controlled automatic sand control deep-well pump of disclosing, this deep-well pump forms rivers passageway in the bottom of water pump through raising the water pump, and the rethread filter screen filters and carries out the sand control, has fine sand in this water pump long-term use in-process water pump to inhale, piles up for a long time and lead to equipment trouble, and the water pump draws water downwards and leads to the aquatic grit content of suction higher, causes the filter screen to block up easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sand control deep-well pump to solve among the prior art the grit after the water pump filters and block up the problem of filter screen easily.

In order to achieve the above object, the utility model provides a following technical scheme: the sand-prevention deep well pump comprises a water pump and a protective cover, wherein an impeller is arranged at the lower end of the water pump, the water pump is connected with the protective cover through a bearing, a centrifugal chamber is arranged at the upper end of the protective cover, a filter plate is arranged on the lower end face of the centrifugal chamber, a filter cover is welded on the side end face of the filter plate, a supporting seat is arranged on the lower end face of the filter cover, an anti-sinking plate is arranged on the inner end face of the supporting seat, a shaft plate is arranged on the inner end face of the filter cover, a sealing plate is slidably connected to the bottom of the filter cover, a spring is arranged at the upper end of the sealing plate, and the sealing plate is elastically connected with a shaft rod through the spring.

Preferably, the filter mantle is round platform type stainless steel screen panel, the lower terminal surface diameter of filter mantle is greater than the up end diameter of filter mantle, because the effect of gravity grit subsides subaquely, filter mantle inclined plane structure makes the water pump upwards draw water along the filter mantle, avoids inhaling bottom grit, greatly reduced the grit content in the aquatic to reduce the filter mantle and block up the risk.

Preferably, the filtering aperture of the filtering cover is 1mm, the filtering cover filters relatively large gravels, and the filtered water flows into the filtering cover and is filtered by the filtering plate.

Preferably, the filter is cellular circular stainless steel plate, the filtration aperture of filter is 0.1mm, and the filter is all held back the filtration with tiny grit, avoids the grit to cause equipment damage in getting into the water pump.

Preferably, the upper end of closing plate is provided with the axostylus axostyle, the cover is equipped with the spring on the axostylus axostyle, the up end of axostylus axostyle is provided with the shaft hole, the closing plate passes shaft hole cooperation spring and axostylus axostyle elastic connection through the axostylus axostyle, equipment shutdown back, the grit after the filtration descends to the closing plate on the effect of gravity, when the grit is accumulated up to a certain weight, the up end of closing plate is extruded to the grit, makes closing plate and axostylus axostyle extrusion spring, and the closing plate moves down, and the grit flows out along the up end of closing plate, and after the grit discharges, the closing plate kick-backs under the reset action of spring and seals.

Preferably, the closing plate be the cone structure, the closing plate overlooks the upper end face of diameter and supporting seat and overlooks the internal diameter and equals, and the closing plate is sealed with the lower terminal surface of filter mantle, avoids drawing water the in-process, and in a large amount of grit of equipment bottom flowed into the closing plate, the inclined plane structure conveniently subsides the grit on the filter and rolls along the up end of closing plate and fall.

Preferably, the anti-trap plate is a circular stainless steel plate, and the anti-trap plate prevents equipment from being trapped in sand and stones at the bottom of water and influencing water inflow of the equipment to cause machine burning.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses at equipment bottom installation filter, through upwards pumping water the mode reduce water in grit content, through filter and filter mantle second grade filtration mode, promoted the grit and filtered the quality, the closing plate through elastic connection will filter the grit discharge who holds back, avoids interior grit to pile up and causes the jam, has promoted equipment performance and life greatly.

Drawings

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

fig. 2 is an enlarged view of a portion a in fig. 1 according to the present invention.

In the figure: 1 water pump, 2 protective cover, 11 impeller, 21 centrifugal chamber, 22 filter plate, 23 filter cover, 231 shaft plate, 232 shaft hole, 24 sealing plate, 241 shaft rod, 242 spring, 25 support seat and 26 anti-trap plate.

Detailed Description

Referring to fig. 1, the sand control deep well pump comprises a water pump 1 and a protective cover 2, wherein an impeller 11 is keyed at the lower end of the water pump 1, the water pump 1 is connected with the protective cover 2 through a bearing, a centrifugal chamber 21 is arranged at the upper end of the protective cover 2, a filter plate 22 is welded on the lower end face of the centrifugal chamber 21, a filter cover 23 is welded on the side end face of the filter plate 22, a support seat 25 is welded on the lower end face of the filter cover 23, an anti-sinking plate 26 is welded on the inner end face of the support seat 25, a shaft plate 231 is welded on the inner end face of the filter cover 23, a sealing plate 24 is slidably connected to the bottom of the filter cover 23, a spring 242 is sleeved on the upper end of the sealing plate 24, and the sealing plate 24 is elastically connected with a shaft lever 241 through the spring 242.

Referring to fig. 1, the filter cover 23 is a circular truncated cone type stainless steel net cover, the diameter of the lower end surface of the filter cover 23 is larger than that of the upper end surface of the filter cover 23, sand settles at the bottom due to the action of gravity, the inclined surface structure of the filter cover 23 enables the water pump 1 to pump water upwards along the filter cover 23, the sand content in water is greatly reduced, thereby reducing the risk of blocking the filter cover 23, the filter cover 23 filters relatively large sand, the filtered water flows into the filter cover 23 and then is filtered by the filter plate 22 to intercept and filter all fine sand by the filter plate 22, thereby avoiding the sand from entering the water pump 1 to cause equipment damage, the sealing plate 24 is a cone structure, the overlooking diameter of the sealing plate 24 is equal to the overlooking inner diameter of the upper end surface of the supporting seat 25, the sealing plate 24 seals the lower end surface of the filter cover 23, and avoids a large amount of sand at the bottom of the equipment from flowing into the sealing plate 24 and having an inclined surface structure during water pumping, the sand settled on the filter plate 22 rolls down along the upper end face of the sealing plate 24.

Referring to fig. 2, a shaft lever 241 is welded at the upper end of the sealing plate 24, a spring 242 is sleeved on the shaft lever 241, a shaft hole 232 is welded on the upper end face of the shaft plate 231, the sealing plate 24 penetrates through the shaft hole 232 through the shaft lever 241 and is matched with the spring 242 to be elastically connected with the shaft plate 231, after the device stops running, sand filtered on the filter plate 22 sinks onto the sealing plate 24 under the action of gravity, when the sand is accumulated to a certain weight, the sand extrudes the upper end face of the sealing plate 24, the sealing plate 24 and the shaft plate 231 extrude the spring 242, the sealing plate 24 moves downwards, the sand flows out along the upper end face of the sealing plate 24, and after the sand is discharged, the sealing plate 24 rebounds and is sealed under the reset action of the spring 242.

The working principle of the scheme is as follows: the utility model discloses when using, water pump 1 drives impeller 11 and rotates, produces powerful suction in the centrifugal chamber 21, by filter mantle 23 to drawing water in the equipment, rivers flow to filter 22 through filter mantle 23, filter mantle 23 filters large granule grit, the granule grit is held back after filter plate 22 filters, after the equipment use finishes, the granule grit is because gravity subsides to closing plate 24 on, after the granule grit is accumulated to a certain weight, pushes down filter 22, the grit is followed filter 22 edge outflow.

The utility model discloses at equipment bottom installation filter 22, through upwards pumping water the mode reduce water in grit content, through filter 22 and 23 cooperation second grade filtration modes of filter mantle, promoted the grit and filtered the quality, the closing plate 24 through elastic connection will filter the grit discharge that holds back, avoids interior grit to pile up and causes the jam, has promoted equipment performance and life greatly.

Claims (7)

1. The utility model provides a sand control deep-well pump, includes water pump (1) and protection casing (2), its characterized in that: the centrifugal water pump is characterized in that an impeller (11) is arranged at the lower end of the water pump (1), the water pump (1) is connected with a protective cover (2) through a bearing, a centrifugal chamber (21) is arranged at the upper end of the protective cover (2), a filter plate (22) is arranged on the lower end face of the centrifugal chamber (21), a filter cover (23) is welded on the side end face of the filter plate (22), a support seat (25) is arranged on the lower end face of the filter cover (23), an anti-sinking plate (26) is arranged on the inner end face of the support seat (25), a shaft plate (231) is arranged on the inner end face of the filter cover (23), a sealing plate (24) is connected to the bottom of the filter cover (23) in a sliding mode, a spring (242) is arranged at the upper end of the sealing plate (24), and the sealing plate (24) is elastically connected with a shaft rod (241) through the spring (242).

2. The sand control deep well pump of claim 1, wherein: the filtering cover (23) is a circular truncated cone type stainless steel net cover, and the diameter of the lower end face of the filtering cover (23) is larger than that of the upper end face of the filtering cover (23).

3. The sand control deep well pump of claim 1, wherein: the filtering aperture of the filtering cover (23) is 1 mm.

4. The sand control deep well pump of claim 1, wherein: the filter plate (22) is a honeycomb-shaped round stainless steel plate, and the filtering aperture of the filter plate (22) is 0.1 mm.

5. The sand control deep well pump of claim 1, wherein: the sealing plate is characterized in that a shaft rod (241) is arranged at the upper end of the sealing plate (24), a spring (242) is sleeved on the shaft rod (241), a shaft hole (232) is formed in the upper end face of the shaft plate (231), and the sealing plate (24) penetrates through the shaft rod (241) and is matched with the spring (242) to be elastically connected with the shaft plate (231).

6. The sand control deep well pump of claim 1, wherein: the sealing plate (24) is of a cone structure, and the overlooking diameter of the sealing plate (24) is equal to the overlooking inner diameter of the upper end surface of the supporting seat (25).

7. The sand control deep well pump of claim 1, wherein: the anti-trap plate (26) is a circular stainless steel plate.

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