CN202056105U

CN202056105U - Novel spiral pressurized water chamber of centrifugal pump

Info

Publication number: CN202056105U
Application number: CN2011201302960U
Authority: CN
Inventors: 陈凯
Original assignee: Yi Fei Pump (fuzhou) Co Ltd
Current assignee: Yi Fei Pump (fuzhou) Co Ltd
Priority date: 2011-04-28
Filing date: 2011-04-28
Publication date: 2011-11-30
Anticipated expiration: 2021-04-28

Abstract

The utility model relates to the field of a pumping device, in particular to a novel spiral pressurized water chamber of a centrifugal pump. A pump body comprises an inlet, a outlet and a maintenance hole, a flow channel and a vortex chamber with an impeller are arranged in the pump body, and the pump body is also internally provided with a gas-water separation chamber and a liquid storage chamber; the gas-water separation chamber is arranged at the outlet end of the flow channel, the outlet is arranged on the top part of the gas-water separation chamber, and the gas-water separation chamber is provided with an upper backflow hole communicated with the vortex chamber; and the liquid storage chamber is arranged at the bottom of the vortex chamber and is provided with a lower backflow hole communicated with the vortex chamber. The utility model has the advantages that: since the upper part of the pump body is provided with the gas-water separation chamber for liquid backflow, while air is discharged and negative pressure in the pump is increased, water losses can be reduced; the lower part of the pump body is provided with the liquid storage chamber so that more mediums can flow through impeller blades; and the flow channel is shaped like a spiral volute, the angular velocity of fluid can be increased, more kinetic energy can be provided for the fluid, and the energy conversion efficiency of the pump can be increased. The novel spiral pressurized water chamber of the centrifugal pump has a simple design structure, is convenient to operate and is suitable for promotion.

Description

A kind of novel centrifugal pump spirality pumping chamber

Technical field

The utility model relates to the pumping unit field, refers more particularly to a kind of novel centrifugal pump spirality pumping chamber.

Background technique

During centrifugal pump work, by driven by motor pump shaft and impeller rotation, the liquid of pump housing inside moves in a circle with impeller on the one hand, under action of centrifugal force, radially dished out on the other hand, form negative pressuren zone in the impeller intermediate portion, and under the barometric pressure effect inspiration liquid, liquid has just formed the process of constantly dishing out and sucking like this.

The volute chamber of known centrifugal pump pumping chamber is positioned at the top of the pump housing, as shown in Figure 1, during centrifugal pump work, impeller 301 drives liquid and rotates in the pump housing 101, relies on the dynamic action of impeller 301 convection cells of rotation, and energy is passed to fluid continuously, the kinetic energy and the pressure of fluid can be increased, especially make kinetic energy increase, fluid is discharged from water outlet 2011 through runner 201 subsequently, and by delivery chamber kinetic energy is converted to the pressure energy.And the liquid through impeller 301 is less in the prior art, and the utilization ratio of waterpower is low, thereby causes the hydraulic loss of pump, and the self-priming performance of pump is poor.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and provides a kind of simple in structure, improves the spirality pumping chamber of centrifugal pump energy conversion efficiency.

The utility model is realized in the following way:

The pump housing comprises inlet, outlet and service hatch, in be provided with runner and the volute chamber of impeller be installed, also be provided with air-water separation chamber and liquid storage room in the pump housing; Described air-water separation chamber is arranged at the outlet end of runner, and the top of air-water separation chamber is located in outlet, and air-water separation chamber has the last return port that communicates with volute chamber; Liquid storage room is arranged at the bottom of volute chamber, and liquid storage room has the following return port that communicates with volute chamber.Described runner is isolated into spiral-shaped by the inwall of the cut water that is scroll casing shape and the pump housing.Air-water separation chamber, liquid storage room and the pump housing respectively have a service hatch, and each service hatch all needs airtight during pump housing work.

Advantage of the present utility model is that the top of the pump housing has the air-water separation chamber of an energy withdrawing fluid, in the negative pressure, has also reduced hydraulic loss in exhausting air increases pump; The bottom of the pump housing has a liquid storage room, can make more medium through impeller blade; And runner is the spirality Crucible shell shape, has improved the angular velocity of fluid, makes fluid obtain more kinetic energy, thereby has improved the energy conversion efficiency of pump.The utility model project organization is simple, easy to operate, the suitable popularization.

Description of drawings

Fig. 1 prior art structural representation;

One of Fig. 2 the utility model structure sectional view;

Two of Fig. 3 the utility model structure sectional view;

Fig. 4 is the left view of Fig. 2;

Fig. 5 is the plan view of Fig. 2.

Embodiment

Now in conjunction with the accompanying drawings shown in 2 to 5, preferred embodiment of the present utility model is described further:

The pump housing 1 comprises inlet 14, outlet 15 and service hatch 16, is provided with the volute chamber 13 of runner 17 and installation impeller 2 in the pump housing 1, it is characterized in that: also be provided with air-water separation chamber 11 and liquid storage room 12 in the pump housing 1; Described air-water separation chamber 11 is arranged at the outlet end of runner 17, and the top of air-water separation chamber 11 is located in outlet 15, and air-water separation chamber 11 has the last return port 111 that communicates with volute chamber 13; Liquid storage room 12 is arranged at the bottom of volute chamber 13, and liquid storage room 12 has the following return port 121 that communicates with volute chamber 13.Described runner 17 is isolated into spiral-shaped by the cut water 18 that is scroll casing shape and the inwall of the pump housing 1.Air-water separation chamber 11, liquid storage room 12 and the pump housing 1 respectively have a service hatch 16, and each service hatch 16 all needs airtight during the pump housing 1 work.

During work, in the pump housing 1, fill water earlier, perhaps utilize the water that has in the liquid storage room 12, starting electrical machinery, impeller 2 high speed rotating make the current direction runner 17 in the volute chamber 13, form vacuum in the pump housing 1, make air in the intake pipe behind an one-way valve, in 14 suction pumps that enter the mouth; When the pump housing 1 inside produced negative pressure, the water warp in the liquid storage room 12 return port 121 down entered volute chamber 13.Because the fluid in the volute chamber 13 gets rid of into runner 17 under the centrifugal action of impeller 2 and arrives air-water separation chamber 11, fluid again under gravity and the pressure difference effect by on return port 111 flow back to volute chamber 13, therefore fluid constantly impacts impeller 2, and constantly be crashed to pieces, mix tempestuously with air, the air-water mixture that forms separates in runner 17, and gas is discharged through exporting 15, and fluid then flows back to volute chamber 13 under gravity and pressure difference effect.Fluid can obtain higher angular velocity by the runner 17 with spirality Crucible shell shape.Circulation so repeatedly, air in the pump housing 1 and the air in the intake pipe drain the most at last, and finish fluid is introduced self-priming process in the pump housing 1, have improved the efficient that can be changed to pressure by kinetic energy when fluid is flowed through the pump housing 1, make the utilization ratio raising of waterpower.

Because fluid may be that to contain foreign material more, use a period of time after, can overhaul by opening 16 pairs of each parts of service hatch, simultaneously the foreign material particle is discharged and is cleaned the inside of the pump housing 1 by each service hatch 16.

Claims

1. novel centrifugal pump spirality pumping chamber, the pump housing (1) comprises inlet (14), outlet (15) and service hatch (16), be provided with the volute chamber (13) of runner (17) and installation impeller (2) in the pump housing (1), it is characterized in that: also be provided with air-water separation chamber (11) and liquid storage room (12) in the pump housing (1); Described air-water separation chamber (11) is arranged at the outlet end of runner (17), and the top of air-water separation chamber (11) is located in outlet (15), and air-water separation chamber (11) has the last return port (111) that communicates with volute chamber (13); Liquid storage room (12) is arranged at the bottom of volute chamber (13), and liquid storage room (12) has the following return port (121) that communicates with volute chamber (13).

2. a kind of novel centrifugal pump spirality pumping chamber according to claim 1 is characterized in that: described runner (17) is isolated into spiral-shaped by the inwall of the cut water that is scroll casing shape (18) and the pump housing (1).

3. a kind of novel centrifugal pump spirality pumping chamber according to claim 1, it is characterized in that: air-water separation chamber (11), liquid storage room (12) and the pump housing (1) respectively have a service hatch (16), and each service hatch (16) all needs airtight during the pump housing (1) work.