Pumping system and wet spraying machine

Abstract

The invention provides a pumping system. The pumping system comprises a first distribution valve, a second distribution valve, a first conveying cylinder, a second conveying cylinder, a third conveying cylinder, a fourth conveying cylinder and a box body, wherein the first distribution valve and the second distribution valve are arranged parallel in the box body; the first side surface of the boxbody is provided with a first discharge port communicating with the first distribution valve and a second discharge port communicating with the second distribution valve; a first reversing mechanism connected with the first distribution valve and a second reversing mechanism connected with the second distribution valve are arranged on a second side surface of the box body; and the first conveyingcylinder, the second conveying cylinder, the third conveying cylinder and the fourth conveying cylinder are arranged parallel on the second side surface of the box body, the first conveying cylinder and the second conveying cylinder independently communicate with the first distribution valve, and the third conveying cylinder and the fourth conveying cylinder independently communicate with the second distribution valve. The invention also provides a wet spraying machine, material suction and material conveying are carried out at the same time, so that the reduction of pumping efficiency is avoided, and meanwhile, pressure shock waves generated in a pipeline can be avoided.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and in particular relates to a pumping system and a wet sprayer. Background technique [0002] Most of the conveying equipment for concrete and industrial materials adopts the pumping system of side-by-side double-row piston conveying cylinders. By arranging a switchable distribution valve such as S-pipe valve, skirt valve, C-shaped valve, poppet valve, etc. The materials in each conveying cylinder are alternately pushed to a discharge port, and then pumped to the designated location through the pipeline. When working, one conveying cylinder pumps the material, and the other conveying cylinder sucks the material, so as to realize continuous pumping and improve efficiency. [0003] When there is only one conveying device or only one conveying device is required to deliver concrete or industrial materials to two designated locations through two conveying pipelines, the usual solution...

AI Technical Summary

Problems solved by technology

However, since each delivery cylinder has to go through a repeated process of sucking and pumping materials, the material delivery is interrupted when the material is sucked. On the one hand, the pumping efficiency is low. On the other hand, there are pressure shock waves in the pipeline, which is easy Creates a "water hammer" effect that increases conveying resistance

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