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a pump truck

A pump truck and trolley technology, applied in the direction of pumps, pump components, pump devices, etc., can solve the problems of poor impeller flow capacity, cumbersome preliminary preparation, large volume and weight, etc., to improve flow capacity and improve low water level drainage. capacity, the effect of increasing the cross-sectional area of ​​the runner

Active Publication Date: 2021-04-20
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most pump trucks place the drainage pump inside the car body, absorb water through external pipes, and then drain the flooded areas. However, this drainage method generally requires sufficient water to be left in the pump in advance. The starting method of leaving enough water makes the preparation for each drainage work more cumbersome and inconvenient, and also makes the pump start more slowly
[0003] In addition, the outer diameter of the motor pump hub and the impeller of the traditional pump truck are large, and the volume and weight are correspondingly large, while the flow capacity of the impeller is poor and the hydraulic efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071]Such asfigure 1 As shown, a pump truck comprising a cartrust cart 1, and a motor pump 2 is provided on the motor pump 2, the motor pump 2 is provided with an impeller, and the impeller is a small hub ratio an impeller, the motor pump Drainage pump.

Embodiment 2

[0073]Such asfigure 1 As shown, on the basis of Example 1, the pump cart 1 is provided with a front drive motor 3 and a GPS locator at the head of the pump trolley, which is provided with a motor pump lift frame 4, which is provided. The motor pump 2 is mounted in the motor pump lift frame 4, and the pump trolley is also provided with a reservoir 5 for placing a flood control water belt. The pump cart 1 is provided with a solar power generation plate 6, The carrier trolley 1 is provided with a battery 7, the front drive motor 3, the motor pump 2, and the solar power generation plate 6 are electrically connected to the battery.

Embodiment 3

[0075]On the basis of Example 1 or 2, the hydroelectric design parameters of a pump vehicle hub berde the leaf wheel is: the routine H = 2m, the flow = 270m3 / h, the motor speed N = 1450 r / min, the ratio speed Ns= 862.

[0076]S1, get the outer diameter D of the hub ratio of the impeller;

[0077]S11, acquired the outer diameter estimation value of the hub ratio impeller by the following formulaestimated value ,

[0078]

[0079]External diameter estimation value of impeller Destimated value The total number is 188mm.

[0080]S12, acquisition of the hub in diameter D by the leaf wheel ratio by the following formula.

[0081]D = rd* Destimated value = 37.6mm

[0082]The hub diameter D takes a total of 38 mm.

[0083]S13, by obtaining the actual value D of the outer diameter of the hub in the outer diameter of the hub by the following formula D,

[0084]

[0085]The actual value D of the small wheel is 14mm in the actual value of the outer diameter of the leaves.

[0086]Impeller profile size school is performed b...

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Abstract

The invention belongs to the technical field of pumps, and specifically relates to a pump truck, which includes a pump-carrying trolley. The pump-carrying trolley is provided with a motor pump. The motor pump is provided with an impeller, and the impeller has a small hub ratio. The beneficial effects of the present invention are: the small hub of the present invention has a reasonable structure compared to the impeller and excellent hydraulic performance. When the flow and head meet the requirements of the design working conditions, the present invention reduces the hub by about 64% and the outer diameter of the impeller by about 64% compared with the traditional structure. 13%, which significantly improves the flow capacity of the impeller. Under the same inlet diameter, the cross-sectional area of ​​the flow channel is increased, and the hydraulic efficiency of the device is improved. Under the same flow rate, it has a smaller flow channel diameter, which reduces the volume of the device.

Description

Technical field[0001]The invention belongs to the field of pump technology, and is specifically related to a pump truck.Background technique[0002]At present, most pump trucks are placed inside the vehicle body in the vehicle body, and then drain the flood region by extracting the flood region. However, this drainage method generally needs to have sufficient water in the pump, this in the pump Keeping a launch of water, the preparation of each drainage work is more cumbersome and inconvenient, and the startup of the pump is slow.[0003]Further, the motor pump hub and the outer outer diameter of the traditional pump truck are large, the volume and weight are also relatively large, and the overflow capacity of the impeller is poor, and the hydraulic efficiency is low.Inventive content[0004]In order to solve the above problems, the present invention provides a pump vehicle having a smaller hub and an outer diameter of the impeller, which improves the overcurrent ability of the impeller, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D13/06F04D29/18B60P3/00G06F30/17G06F30/28
CPCY02A10/40
Inventor 柴立平苏晓珍李强张羽燕浩石海峡
Owner HEFEI UNIV OF TECH