CN203822649U - Vertical sewage pump - Google Patents

Abstract

The utility model provides a vertical sewage pump which cannot be easily blocked up by solid particles and fiber tends to twist or converge. The vertical sewage pump comprises a pump shaft (1), a bearing cap (2), a bearing pedestal (3), a packing box rack (4), a pump body (5), an impeller (6), a flow passage (7), an outlet (8), an inlet (10), a water pressing chamber (11) and a base (12), wherein the upper end of the pump shaft (1) is connected with a power source; the lower end of the pump shaft (1) sequentially penetrates the bearing cap (2), the bearing pedestal (3), the packing box rack (4), the pump body (5), the impeller (6) and the water pressing chamber (11); the pump body (5) is mounted on the base (12); the outlet (8) and the inlet (9) are formed in the pump body (5); the outlet (8) is communicated with the inlet (9) through the flow passage (7). The vertical sewage pump is characterized in that a cushion chamber (14) which protrudes from the interior to the outside is arranged in the water pressing chamber (11); the cushion chamber is arranged on the side opposite to the outlet (8); the caliber of the flow passage (7) is 200 mm.

Description

Vertical sump pump

Technical field

The utility model relates to a kind of water pump, specifically refers to a kind of vertical sump pump.

Background technique

In prior art, sewage pump has various ways: mainly contain two kinds of submersible type and dry types, the most frequently used submersible type is WQ type submerged sewage pump at present; Two kinds of modal dry type sewage pump sewage pump as horizontal in W type and WL type vertical sump pumps.Mainly for delivery of urban sewage, in ight soil or liquid, contain the medium of the solid particles such as fiber, paper scrap.Conventionally the temperature that is transferred medium is not more than 80 ℃.Owing to containing the fibre object of solid particle and easy winding or pack in the medium being transferred.The runner of Mian water pump is easily blocked, once the blocked meeting of pump makes pump cisco unity malfunction, and motor damage even, thus cause blowdown not smooth.Bring serious impact to urban life and environmental protection.Therefore, anti-blocking and reliability are the key factors of sewage pump quality.This class of the vertical sump pump of take in dry type sewage pump is example, the pumping chamber of vertical sump pump of the prior art adopts loop configuration mostly, runner on impeller adopts small flow channels, runner bore is less than 100mm, the space of pumping chamber is very little, between the end face at its sidewall and road junction, impeller upper reaches, distance is very little, and described space is uniform loop configuration, the sewage pump of this structure is when work, have the following disadvantages: the fibre object of solid particle and easily winding or pack is easy to be stuck in pumping chamber, thereby cause runner to be blocked, make sewage pump cisco unity malfunction, motor damage even.

Model utility content

The technical problems to be solved in the utility model is to provide a kind of runner to be not easy the vertical sump pump of being blocked by the fibre object of solid particle and easy winding or pack.

For solving the problems of the technologies described above, the technological scheme that the utility model provides is: a kind of vertical sump pump, and it comprises pump shaft, bearing cap, bearing bracket stand, stuffing box frame, the pump housing, impeller, runner, outlet, import, pumping chamber and base; Pump shaft upper end is connected with power source, and lower end is successively through bearing cap, bearing bracket stand, stuffing box frame, the pump housing, impeller and pumping chamber; The pump housing is arranged on base, and the pump housing is provided with export and import; Described runner is communicated with export and import; In described pumping chamber, be provided with a from inside to outside outstanding buffer chamber, described buffer chamber is positioned at a side relative with outlet, and the bore of described runner is 200 millimeters.

Adopt after said structure, the utlity model has following advantage: in described pumping chamber, be provided with a from inside to outside outstanding buffer chamber, described buffer chamber is positioned at a side relative with outlet, and the bore of described runner is 200 millimeters.By unique buffer chamber and bigbore runner, combine, when the fibre object of solid particle and easy winding or pack is inhaled in pumping chamber, can first be pressed into cushion chamber falls, again by centrifugal force and the formed component of end thrust in pump, by bigbore runner, discharged smoothly, thereby be not easy blocked.In sum, the utility model provides a kind of runner to be not easy the vertical sump pump of being blocked by the fibre object of solid particle and easy winding or pack.

As improvement, the port near the one end exporting on described impeller is provided with for relaxing the seal ring of the friction between impeller and the pump housing, and described seal ring is two, is embedded on two blades up and down of impeller.This structure has effectively strengthened the wear resistance between impeller and the pump housing, has improved both working life and working stabilitys, and it is also convenient safeguard, only need to regularly replace seal ring.

As further improvement, in described import and outlet, be equipped with access hole.This structure has further improved the convenience of sewage pump maintenance, for some minor issues, can take the whole pump housing apart, directly opens access hole and just can clear up accordingly and overhaul.

Accompanying drawing explanation

Fig. 1 be in the utility model vertical sump pump partly cut open structural representation.

As shown in the figure: 1, pump shaft, 2, bearing cap, 3, bearing bracket stand, 4, stuffing box frame, 5, the pump housing, 6, impeller, 7, runner, 8, outlet, 9, seal ring, 10, import, 11, pumping chamber, 12, base, 13, access hole, 14, buffer chamber.

Embodiment

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

By reference to the accompanying drawings 1, a kind of vertical sump pump, it comprises pump shaft 1, bearing cap 2, bearing bracket stand 3, stuffing box frame 4, the pump housing 5, impeller 6, runner 7, outlet 8, import 10, pumping chamber 11 and base 12; Pump shaft 1 upper end is connected with power source, and lower end is successively through bearing cap 2, bearing bracket stand 3, stuffing box frame 4, the pump housing 5, impeller 6 and pumping chamber 11; The pump housing 5 is arranged on base 12, and the pump housing 5 is provided with outlet 8 and import 9; Described runner 7 will export 8 and import 9 be communicated with; In described pumping chamber 11, be provided with a from inside to outside outstanding buffer chamber 14, described buffer chamber is positioned at sides relative with outlet 8, and the bore of described runner 7 is 200 millimeters.On described impeller 6, the port of one end of close outlet 8 is provided with for relaxing the seal ring 9 of the friction between impeller and the pump housing 5, and described seal ring 9 is two, is embedded on two blades up and down of impeller 6.In described import 10 and outlet 8, be equipped with access hole 13.

It should be noted that; technological scheme in the utility model apply for the inventive point of protection relate generally to pumping chamber 11, runner 7 and, the main structure such as impeller 6, the pump housing 5, import 10 and outlet 8; as for other, there is no the structure of essence annexation with inventive point; in the utility model, do not repeat one by one, that is to say that these structures are conventional design identical with sewage pump of the prior art.This sewage pump is applicable to delivery industry waste water and city domestic sewage.Its great advantage is to carry the sewage that contains solid particle and contain lamination coating.Except applicable, carry sewage, be also applicable to do drainage pump, pulp pump, filtration and washing condensation cycle pump, irrigation pump etc.In structure, having motor direct-connection type is that motor is directly loaded on pump, also has motor to be loaded on the floor above pump, the propeller shaft couplings formula with universal joint for motor and pump.To the vertical sump pump with universal joint transmission, universal joint weight is born by founding electric transmission, and motor is installed on vertical electric transmission, between motor and vertical electric transmission, with elastic coupling flexible coupling is flexible, connects.When pump layer and motor layer distance are long, intermediate transmission can be connected by several axles, and on the suitable position of jack shaft, intermediate bearing is set, and the quantity of intermediate bearing and status requirement are set.And should there is reliable supporting.All pumps are all that the back of the body opens the door, and need not tear the pump housing open and inlet and outlet pipe can split out rotor part like this in when maintenance.From motor drive direction, see that pump is clockwise direction rotation.Shaft sealing adopts soft packing seal, and Gland is a minute half formula structure, and filler mounting or dismounting are changed very convenient, not frayed for guaranteeing axle, and axle sleeve is housed on axle.As user needs to join mechanical seal.In operation process, must separately with high pressure clear water, through water pipe, enter in the seal cage of packing elements, to carry out cooling and flushing sewage (referring to infiltrate in runner the sewage of filler chamber), at least high 0.5kgf.cm2 of pressure ratio pump discharge head of high pressure clear water.If user needs to join mechanical seal.The utility model vertical sump pump the diameter of treatable immobilized particles thing between 25～51mm.

Above the utility model and mode of execution thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of mode of execution of the present utility model, and actual structure is not limited to this.If generally speaking those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary mode of structure similar to this technological scheme and the embodiment of designing, all should belong to protection domain of the present utility model.

Claims (3)

1. a vertical sump pump, it comprises pump shaft (1), bearing cap (2), bearing bracket stand (3), stuffing box frame (4), the pump housing (5), impeller (6), runner (7), outlet (8), import (10), pumping chamber (11) and base (12); Pump shaft (1) upper end is connected with power source, and lower end is successively through bearing cap (2), bearing bracket stand (3), stuffing box frame (4), the pump housing (5), impeller (6) and pumping chamber (11); It is upper that the pump housing (5) is arranged on base (12), and the pump housing (5) is provided with outlet (8) and import (9); Described runner (7) will export (8) and import (9) is communicated with; It is characterized in that: in described pumping chamber (11), be provided with a from inside to outside outstanding buffer chamber (14), described buffer chamber is positioned at a side relative with outlet (8), and the bore of described runner (7) is 200 millimeters.

2. vertical sump pump according to claim 1, it is characterized in that: the port of the upper one end near outlet (8) of described impeller (6) is provided with for relaxing the seal ring (9) of the friction between impeller and the pump housing (5), described seal ring (9) is two, is embedded on two blades up and down of impeller (6).

3. vertical sump pump according to claim 2, is characterized in that: in described import (10) and outlet (8), be equipped with access hole (13).