CN210484083U - Double-suction sewage pump - Google Patents

Double-suction sewage pump Download PDF

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Publication number
CN210484083U
CN210484083U CN201920749766.8U CN201920749766U CN210484083U CN 210484083 U CN210484083 U CN 210484083U CN 201920749766 U CN201920749766 U CN 201920749766U CN 210484083 U CN210484083 U CN 210484083U
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China
Prior art keywords
double
suction
impeller
pump
sides
Prior art date
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Active
Application number
CN201920749766.8U
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Chinese (zh)
Inventor
余学军
毛泓
何群林
彭兆静
聂葵
成立平
夏仲林
曾永忠
吴兴平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Miluojiang Pump Making Co ltd
Hunan Mechanical and Electrical Polytechnic
Original Assignee
Hunan Miluojiang Pump Making Co ltd
Hunan Mechanical and Electrical Polytechnic
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Priority to CN201920749766.8U priority Critical patent/CN210484083U/en
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Abstract

A double-suction sewage pump comprises a double-suction pump body, a double-suction pump cover and a double-suction sewage pump impeller, wherein water inlet and outlet ports of the water pump connected with a water inlet pipe and a water outlet pipe are all arranged on the pump body, and the double-suction pump body is connected with the double-suction pump cover through a middle opening surface. Two sides of the double-suction sewage pump impeller are respectively provided with two flow channels which are centrosymmetric about an axial lead, namely one flow channel is obtained by rotating the other flow channel for 180 degrees by taking the axial lead as the center, the flow channels on the two sides are symmetrically distributed back to back, and the flow channels on the two sides are combined outside a certain impeller outer diameter. When the impeller is installed and maintained, the impeller can be replaced only by uncovering the pump cover and taking out the rotor component without disassembling the pipeline and the driving motor, so that the impeller is very convenient to install and maintain. The impeller with the double-suction structure can reduce the specific rotating speed of the sewage pump and improve the efficiency of the water pump. And because the two side structures of the double-suction structure impeller are symmetrical, the axial forces at the two sides are mutually offset, and the problem of overlarge axial force of the single-suction sewage pump is effectively solved.

Description

Double-suction sewage pump
Technical Field
The utility model belongs to the water pump field, in particular to double suction sewage pump.
Background
The sewage pump is mainly used for pumping domestic sewage, industrial wastewater and liquid containing solid particles and fibers, and is widely applied to the industries of municipal administration, light industry, chemical industry, building, mine and the like. The sewage pump is generally of a single-suction structure, and commonly has a single-flow-channel impeller structure and a double-flow-channel impeller structure. For centrifugal pumps, the specific speed is not too low or the efficiency is not high; for the sewage pump, the lift is generally not high, and the specific speed is relatively high, so the efficiency is not high. In addition, the single-suction structure has larger axial force, which seriously affects the mechanical property of the water pump and the service life of parts, and also greatly limits the application of the single-suction structure.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence among the prior art, the utility model aims at providing a double suction sewage pump can promote sewage pump's efficiency greatly, solves single suction pump axial force too big problem simultaneously, has better mechanical properties and installs and remove convenient structural advantage.
The utility model provides a technical scheme that its technical problem adopted is:
a double-suction sewage pump comprises a double-suction pump body, a double-suction pump cover and a double-suction sewage pump impeller, wherein water inlet and outlet ports of the water pump connected with a water inlet pipe and a water outlet pipe are all arranged on the pump body, and the double-suction pump body is connected with the double-suction pump cover through a middle opening surface. The beneficial effects are as follows: when the impeller is installed and maintained, the impeller can be replaced only by uncovering the pump cover and taking out the rotor component without disassembling the pipeline and the driving motor, so that the impeller is very convenient to install and maintain.
Furthermore, two runners are respectively arranged on two sides of the double-suction sewage pump impeller, and the two runners are symmetrical about the center of an axial lead, namely one runner is obtained by rotating the other runner for 180 degrees by taking the axial lead as the center, the runners on the two sides are symmetrically distributed back to back, and the runners on the two sides are combined outside a certain impeller outer diameter. The beneficial effects are as follows: according to the formula of the specific rotating speed of the water pump, under the same flow, lift and rotating speed, the specific rotating speed of the double-suction sewage pump is 0.707 times that of the single-suction sewage pump, and the sewage pump is generally not high in lift and large in specific rotating speed, so that the impeller with the double-suction structure is adopted, the specific rotating speed of the sewage pump can be reduced, and the efficiency of the water pump is improved. And because the two side structures of the double-suction structure impeller are symmetrical, the axial forces at the two sides are mutually offset, and the problem of overlarge axial force of the single-suction sewage pump is effectively solved.
Drawings
Fig. 1 is a conventional dual-flow sewage pump structure.
Fig. 2 is a prior art dual flow sewage pump impeller.
Fig. 3 is a schematic view of the structure of the double-suction sewage pump of the present invention.
Fig. 4 shows the pump cover removing structure of the double suction sewage pump of the present invention.
Figure 5 is the double suction sewage pump impeller of the utility model.
In the figure: 1. the sewage treatment device comprises a single-suction pump body, 2 a single-suction pump cover, 3 a single-suction pump impeller, 4 an axial lead, 5 an impeller flow passage, 6 a double-suction pump body, 7 a double-suction pump cover and 8 a double-suction sewage pump impeller.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
A double suction sewage pump comprises a double suction pump body 6, a double suction pump cover 7 and a double suction sewage pump impeller 8, wherein water inlet and outlet ports of a water pump connected with a water inlet pipe and a water outlet pipe are all arranged on the pump body, and the double suction pump body 6 and the double suction pump cover 7 are connected through an open surface. Two runners 5 are respectively arranged on two sides of the sewage pump impeller, and the two runners are centrosymmetric about an axial lead 4, namely one runner is obtained by rotating the other runner for 180 degrees by taking the axial lead as the center, the runners on the two sides are symmetrically distributed back to back, and the runners on the two sides are combined outside a certain impeller outer diameter.

Claims (1)

1. The utility model provides a double suction sewage pump, includes the double suction pump body, double suction pump cover and impeller, connects the water pump inlet outlet of business turn over water pipe all on the pump body, and the double suction pump body and double suction pump cover are through opening the face connection its characterized in that in the middle: two sides of the double-suction sewage pump impeller are respectively provided with two flow channels which are centrosymmetric about an axial lead, namely one flow channel is obtained by rotating the other flow channel for 180 degrees by taking the axial lead as the center, the flow channels on the two sides are symmetrically distributed back to back, and the flow channels on the two sides are combined outside a certain impeller outer diameter.
CN201920749766.8U 2019-05-23 2019-05-23 Double-suction sewage pump Active CN210484083U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920749766.8U CN210484083U (en) 2019-05-23 2019-05-23 Double-suction sewage pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920749766.8U CN210484083U (en) 2019-05-23 2019-05-23 Double-suction sewage pump

Publications (1)

Publication Number Publication Date
CN210484083U true CN210484083U (en) 2020-05-08

Family

ID=70513673

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920749766.8U Active CN210484083U (en) 2019-05-23 2019-05-23 Double-suction sewage pump

Country Status (1)

Country Link
CN (1) CN210484083U (en)

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