CN2398450Y

CN2398450Y - Multistage centrifugal peripheral pumps

Info

Publication number: CN2398450Y
Application number: CN 99249507
Authority: CN
Inventors: 朱兴家
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-15
Filing date: 1999-10-15
Publication date: 2000-09-27
Anticipated expiration: 2009-10-15

Abstract

The utility model relates to a centrifugal vortex water pump, which is composed of a pump body, a pump cover, a pump shaft, two impellers, a water outlet, a water inlet, etc. The utility model has the essential that the pump shaft is fixedly provided with a first level centrifugal impeller and a second level vertex type impeller. The front end of the first level centrifugal impeller is communicated with the water inlet of the pump, and the end of the second level vertex type impeller is communicated with the water outlet of the pump and is sealed by a seal. The utility model has the advantages of large flow quantity, high delivery lift, short wheelbase, small size, light weight, simple structure, high mechanical performance, etc. The utility model can be widely used for farmland irrigation and drainage, plant protection and high position water supply.

Description

The multistage centrifugal peripheral pump

The utility model relates to a kind of high pressure water pump, especially relates to a kind of centrifugal cernrifugal pump.

At present, the water pump that uses on the agricultural generally can be divided into centrifugal pump, mixed flow pump, and axial-flow pump, peripheral pump etc., the outstanding problem of single vane pump is that efficient is low, though big as the axial-flow pump flow, lift is lower, though the centrifugal pump lift is higher, but flow is less.Be head it off, people develop the bilobed wheel multistage pump, generally adopt two receded disk impellers, though this pump flow and lift all increase, axial dimension is longer, and volume is big, Heavy Weight is not easy to maintenance again, has limited using scope to a certain extent.

It is short that the purpose of this utility model provides a kind of axial distance, and volume is little, and is in light weight, the multistage centrifugal peripheral pump that lift is high.

The utility model is to realize like this, form by the pump housing, pump cover, pump shaft, impeller, water in-out port etc., it is characterized in that on described pump shaft, installing two impellers, be first-stage centrifugal formula impeller and secondary vortex type impeller, the front end of first-stage centrifugal formula impeller communicates with the water inlet of pump, the end of secondary vortex type impeller communicates with pumping the mouth of a river, and is sealed by Sealing.

This multistage centrifugal peripheral pump owing to utilized the assemblying body of first-stage centrifugal impeller and secondary swirl vanes, shortens axial dimension greatly, thereby has alleviated weight, has reduced cost, and it is little to have reached volume, the purpose of Yang Chenggao.

Below in conjunction with accompanying drawing the utility model is elaborated.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation that has dividing plate between the utility model two impellers.

Referring to accompanying drawing 1, this pump is made up of the pump housing 4, pump cover 1, pump shaft 6, impeller, water inlet 7 water outlets 8 etc., it is characterized in that on described pump shaft 6, installing two impellers, be that first-stage centrifugal formula impeller 2 and secondary revolve a whirlpool formula impeller 3, the front end of first-stage centrifugal formula impeller 2 communicates with the water inlet 7 of pump, and the end of secondary vortex type impeller 3 communicates with pumping the mouth of a river 8, because the wheelbase of two impellers is short, make the also corresponding shortening of runner, liquid flowing resistance also reduces relatively.Make the compact overall structure of pump, improved efficient.Sealing 5 directly contacts with vortex type impeller 3, and compress impeller, and the motive sealing effect that makes it neither to go here and there is good again, has guaranteed the assembly quality of pump.

The utility model also can be provided with dividing plate 9 between first-stage centrifugal formula impeller 2 and secondary vortex type impeller, referring to accompanying drawing 2.Its dividing plate master one will play the choked flow pressurization, and receded disk impeller 2 has improved the suction journey, and vortex type impeller 3 further improves lift, has reached high-lift effect, and its lift can reach 35m.

The utility model has the advantages that:

This pump makes it to form multistage pump owing to adopt the assembly of two impellers, and it is big to have a flow, the spy that lift is high Point, and wheelbase is short, and volume is little, and is in light weight, simple in structure, and good mechanical property is easy to use, can extensively be suitable for Supply water in farmland discharging-irrigating, plant protection and eminence.

Claims

1, a kind of multistage centrifugal peripheral pump, form by the pump housing, pump cover, pump shaft, impeller, water in-out port etc., it is characterized in that on described pump shaft (6), installing two impellers, be first-stage centrifugal formula impeller (2) and secondary vortex type impeller (3), the front end of first-stage centrifugal formula impeller (2) communicates with the water inlet (7) of pump, the end of secondary vortex type impeller (3) communicates with pumping the mouth of a river (8), and is sealed by Sealing (5).

2, multistage centrifugal peripheral pump according to claim 1 is characterized in that being provided with dividing plate (9) between first-stage centrifugal formula impeller (2) and secondary vortex type impeller (3).