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High-pressure waterway control system

A waterway control, high-pressure water pump technology, applied in pump control, pipeline system, gas/liquid distribution and storage, etc., can solve the problems of high cost, complex structure and control, many failure points, etc., to achieve low cost, compact structure, Easy to install and adjust

Active Publication Date: 2013-10-30
ZOOMLION ENVIRONMENTAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method effectively protects the auxiliary machine and high-pressure water pump, it needs to set up safety valves, unloading valves, bypass water valves and combine electrical logic control at the same time. The structure and control are relatively complicated, the cost is high, and there are many failure points.

Method used

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Examples

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Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 and figure 2 As shown, the high-pressure waterway control system of the present invention includes a high-pressure water pump 2 connected with a pipeline and an operating element control valve 4. The high-pressure water pump 2 is powered by an auxiliary engine 1. In this example, the operating element is a nozzle, and the operating element The control valve 4 is the nozzle control valve. An unloading valve 31 is provided on the pipeline, and the water outlet of the unloading valve 31 communicates with the water tank 6 , the unloading valve 31 is connected in parallel with the easy-start valve 32 , and the water outlet of the easy-start valve 32 communicates with the water tank 6 . In this embodiment, the easy-to-start valve 32 is a double one-way valve with spring return. When the pressure is very low, the water pressure overcomes the spring force to push the one-way valve core open, and the inlet and outlet of the easy-start valve are in a ...

Embodiment 2

[0030] Such as image 3 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference is that the water inlet of the easy start valve 32 is located between the water inlet of the unloading valve 31 and the water outlet of the high-pressure water pump 2 .

Embodiment 3

[0032] Such as Figure 4 As shown, the structure of this embodiment is basically the same as that of Embodiment 1, the difference being that the easy-to-start valve 32 is an electromagnetic reversing valve. The outlet water can flow back to the water tank 6 from the electromagnetic reversing valve to realize no-load starting;

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Abstract

The invention discloses a high-pressure waterway control system, which comprises a high-pressure water pump and an operation element control valve, wherein the high-pressure water pump is connected with the operation element control valve through a pipeline; the pipeline is provided with a discharging valve; the water outlet of the discharging valve is communicated with a water tank; the discharging valve is connected in parallel with an easy-start valve; and the water outlet of the easy-start valve is communicated with the water tank. Due to the adoption of the high-pressure waterway control system, the functions of no-loading start, automatic charging and safe overflow safely are compounded; and the high-pressure waterway control system has the advantages of simple and compact structure, convenience for installing and adjusting, reduction in the cost, improvements on the system reliability and the maintainability, and the like.

Description

technical field [0001] The invention mainly relates to the field of sanitation equipment or sanitation vehicles, in particular to a high-pressure waterway control system applied to sanitation equipment or sanitation vehicles. Background technique [0002] The high-pressure waterway system is widely used in sanitation machinery such as cleaning vehicles. Its working pressure can generally reach 10MPa. A safety valve (overflow valve) must be installed at the outlet of the water pump to limit the system pressure and protect the components on the waterway within a safe range of use. When the operating element is in the closed state, the pump water cannot be sprayed from the operating element. At this time, the system pressure reaches the overflow pressure, and all the pump water overflows from the safety valve to the water tank at high pressure, but at the same time, a large amount of energy loss will be generated, resulting in The water temperature rises, the use environment of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/22F17D1/14F16K11/24
Inventor 台冰丰黄磊滕新科彭旭
Owner ZOOMLION ENVIRONMENTAL IND CO LTD
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