CN201202683Y - Submersible horizontal type multilevel centrifuge water discharge pump - Google Patents

Abstract

The utility model discloses a submersible horizontal multistage centrifugal pump, comprising a couple, a principal shaft, a bearing bracket, a shaft bracket, an adjusting shaft housing, a water intake section, a packing sleeve, a tightening bolt, an impeller, a guide vane wheel, a middle section, a balancing sleeve, a balancing disc assembly, a balancing plate, a water outlet section and a rear cover. The principal shaft is supported by the shaft bracket and is threaded in the pump body; an oil-water lubricated bearing is installed in the bearing bracket; packing sealing is applied on the water intake section and the rear cover; and a limiting block for preventing the packing from being locked is arranged at the back of a gland bush, forming a filler antilock structure. The submersible horizontal multistage centrifugal pump can drain water normally at normal times and can do rescue and relief work at the time of disasters.

Description

Submersible horizontal multi-stage centrifugal drain pump

Technical field:

The utility model relates to a kind of horizontal draining pump that can be used for diving forced-ventilated water behind normal draining in mine and the floods, belongs to mine drainage technical equipment field.

Background technique:

No matter mining industry is strip mining transformation or pit mining, in recovery process inevitably the water burst phenomenon will take place, therefore the mining industry operating regulation is stipulated, each mine must possess certain drainage capacity could be produced, and the high-power multistage horizontal centrifugal drain pump that generally has been equipped with some is equipped as mine master's draining.When water yield surpassed its drainage capacity, water pump flooded, and caused the drainage system paralysis, caused the generation of flooding the well accident, jeopardized operating personnel's life safety, caused the heavy losses of property.In recent years, along with the increase of the pit mining degree of depth,, strengthens day by day gushing water because of causing the danger of flooding the well accident.

Existing horizontal centrifugal drain pump is assembled by critical pieces such as coupling, oil-lubricated bearing, bearing bracket stand, axle, axle sleeve, pedestal, impeller, guide vane wheel, stator cover, Balance disc assembling, inlet segment, stage casing, water exit end, turnbuckle, tail-hood, balance plates.At the front and back pedestal oil-lubricated bearing is installed respectively, at inlet segment, tail-hood difference installation shaft Sealing.When water yield surpasses its drainage capacity, existing horizontal draining pump is after water level rises to axial plane, because the lubricant oil of oil-lubricated bearing runs off, the lubricating condition forfeiture, bearing reliably working for a long time in water, will be forced to because of the damage of bearing shut down, more can't chase after drainage works.

At present, after the shallow-layer mine is flooded, adopt the interim disaster relief method that the large-scale electric underwater pump draining is installed.Deploy to ensure effective monitoring and control of illegal activities in large-scale electric underwater pump flow and the pit shaft restriction of area of this disaster relief method owing to be subjected to, too much Submerged Motor Pumps can not be installed, the draining and the disaster relief of the mine of well depth above 800 meters are again the big technical barriers that engineering interface faces in addition, and therefore the mine above 800 meters causes very big threat to big water yield mine and well depth.If horizontal draining pump can be implemented in long-time reliably working under the submerged condition, will reduce the investment and the operating cost of mine greatly, improve the mine drainage anti-disaster ability, for the personnel escape strives for the quality time, for the draining complex ore creates conditions.

The model utility content:

The purpose of this utility model provide a kind of both can draining under the normal water yield situation of mine, can flood the submersible horizontal multi-stage centrifugal drain pump that chases after draining under the well situation again.

The utility model comprises: coupling, main shaft, bearing bracket stand, pedestal, adjustment axle sleeve, inlet segment, packing sleeve, turnbuckle, impeller, guide vane wheel, stage casing, balance set, Balance disc assembling, balance plate, water exit end, tail-hood, main shaft is supported and is penetrated in pump housing inside by pedestal, the profit lubricating bearings is installed in the bearing bracket stand, packing is used at sealing position in inlet segment, the tail-hood, in the behind of gland anti-packing locking limiting stopper is set, constitutes filler anti-lock structure.

Like this, normally gush under the draining situation, submersible horizontal multi-stage centrifugal drain pump is identical with the centrifugal draining pump working principle of common horizontal multi-stage, and bearing uses oil lubrication.After inflow rate of mine water surpasses its drainage capacity and water level and rises to axial plane, lubricant oil will run off gradually, and bearing operation is in the profit mixed lubricating state, and the profit lubricating bearings still can be worked.After lubricant oil runs off fully, as long as bearing is under water, just can relies on water to be lubricated and cool off, guarantee that bearing is chasing after between drainage period reliably working for a long time.The maximum compressibility of filler anti-lock structural limitations filler prevents because the hydraulic pressure seize that extruding causes to filler.The distinguishing feature of rescue and relief work when the submersible horizontal multi-stage centrifugal drain pump of the utility model has normal at ordinary times draining, calamity.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is the structural representation of the utility model water pump.

Fig. 2 is the utility model water pump spindle afterbody profit lubricating bearings and sealing scheme of installation.

Embodiment:

As seen from Figure 1, Figure 2, the utility model comprises: coupling 1, main shaft 2, bearing bracket stand 3, pedestal 4, adjustment axle sleeve 5, inlet segment 6, packing sleeve 7, turnbuckle 8, impeller 9, guide vane wheel 10, stage casing 11, balance set 12, Balance disc assembling 13, balance plate 16, water exit end 14, tail-hood 15.Main shaft 2 is supported and is penetrated in pump housing inside by pedestal 4, the profit lubricating bearings is installed in the bearing bracket stand 3, packing 17 is used at sealing position in inlet segment 6, the tail-hood, anti-packing locking limiting stopper 20 is set in the behind of gland 18, constitute filler anti-lock structure, by the maximum compressibility of limiting stopper 20 restriction packings 17, guarantee the normal sealing in shaft extension position and locking phenomenon does not take place.Coupling 1, adjustment axle sleeve 5, impeller 9, Balance disc assembling 13 are installed on the main shaft 2, are supported on the pedestal 4 by profit lubricating bearings 19, bearing bracket stand 3, and the profit lubricating bearings is installed in the bearing bracket stand.Inlet segment 6, stage casing 11, water exit end 14 are by the turnbuckle 8 formation pump housing that is assembled together.Balance plate 16 is fixedly mounted on water exit end.Balance disc assembling 13 and balance plate 16 utilize the pressure reduction of water to come balancing axial thrust.Pedestal 4 is by seam and being bolted on the pump case.

Claims (1)

1, a kind of submersible horizontal multi-stage centrifugal drain pump, comprise: coupling (1), main shaft (2), bearing bracket stand (3), pedestal (4), adjust axle sleeve (5), inlet segment (6), packing sleeve (7), turnbuckle (8), impeller (9), guide vane wheel (10), stage casing (11), balance set (12), Balance disc assembling (13), balance plate (16), water exit end (14), tail-hood (15), main shaft (2) supports and penetrates in pump housing inside by pedestal (4), it is characterized in that installing in the bearing bracket stand (3) the profit lubricating bearings, inlet segment (6), packing (17) is used at sealing position in the tail-hood (15), in the behind of gland (18) anti-packing locking limiting stopper (20) is set, constitutes filler anti-lock structure.

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