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Centrifugal urea injecting pump

A filling pump and centrifugal technology, applied in the field of centrifugal urea filling pump, can solve the problems of leakage between the shaft and the shaft seal, affecting the normal use of the filling machine, and environmental pollution.

Active Publication Date: 2019-01-25
ZHEJIANG LANGQING INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the corrosiveness of the urea solution used in vehicles, there is leakage between the shaft and the shaft seal, which not only affects the normal use of the filling machine but also causes a certain degree of pollution to the environment; therefore, it is very important to design a centrifugal urea filling pump. Necessary

Method used

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  • Centrifugal urea injecting pump
  • Centrifugal urea injecting pump
  • Centrifugal urea injecting pump

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Effect test

Embodiment Construction

[0063] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0064] Such as Figure 34 , 35 , 36, it includes a centrifugal pump body 41, a connecting device 42, a power distribution cabinet 43, a motor device 44, wherein the centrifugal pump body 41 is installed on the motor device 44 through a connecting device 42; as Figure 36 As shown, the centrifugal pump body 41 is provided with a power distribution cabinet 43 ; the power distribution cabinet 43 is electrically connected to the motor device 44 .

[0065] Such as figure 1 , 2 , 3, the centrifugal pump body 41 includes an impeller device 40, a liquid outlet pipe 1, a liquid inlet pipe 2, a pump casing 3, a drive shaft 4, and a partition 5, such as Figure 5 As shown, the p...

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Abstract

The invention belongs to the technical field of urea injecting pumps, and particularly relates to a centrifugal urea injecting pump. The centrifugal urea injecting pump comprises a centrifugal pump body, a connecting device and the like. A pump case of the centrifugal urea injecting pump is provided with a liquid inlet pipe and a liquid outlet pipe. The urea injecting pump is provided with a firstimpeller and a second impeller. A driving shaft is provided with two external threads. The first impeller and the second impeller are symmetrically distributed. Axial forces applied to the first impeller and the second impeller are opposite. While displacement happens in the first impeller and the second impeller, a first nut is moved together, and the first nut forms thread transmission with theexternal threads on the driving shaft, so the first nut is changed relative to an installing position of a second nut. At this moment, a solution flow at an inlet of the first impeller or the secondimpeller is changed, and the axial forces applied to the first impeller and the second impeller are changed, so the axial forces applied to the first impeller and the second impeller are the same in size and opposite in direction, and a purpose of counteracting the redundant axial force is achieved.

Description

technical field [0001] The invention belongs to the technical field of urea filling pumps, in particular to a centrifugal urea filling pump. Background technique [0002] At present, the impeller of the existing urea filling pump must produce an axial action always pointing to the suction port of the pump, so that the impeller will move axially to the suction port side, which will cause vibration and wear of the impeller; at the same time, the The existence of axial force will also seriously reduce the service life of the bearing, which will have an extremely adverse effect on the work of the centrifugal pump. After a period of use, there will be leakage between the shaft and the shaft seal due to the corrosive urea solution used for vehicles. It affects the normal use of the filling machine and causes a certain degree of pollution to the environment; at the same time, in order to effectively reduce the pollution caused by automobile exhaust to the atmospheric environment, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/24F04D29/042F04D29/041F04D29/02F04D13/08F01N3/20
CPCF04D1/06F04D7/06F04D13/06F04D29/185F04D29/20F04D29/22F04D29/669
Inventor 陈旭英斯建明陈雪波
Owner ZHEJIANG LANGQING INTELLIGENT TECH CO LTD