High-pressure water conveying system and water supply device

Abstract

The invention discloses a high-pressure water conveying system comprising a first oil cylinder, a second oil cylinder, a first conveying cylinder, a second conveying cylinder, a water tank (1-5), a water delivery valve (1-6) and a reversing mechanism (1-7), wherein the piston of the first conveying cylinder and the piston of the second conveying cylinder are respectively connected with the pistonrod of the first oil cylinder and the piston rod of the second oil cylinder; the water outlet of the first conveying cylinder and the water outlet of the second conveying cylinder are communicated with the water tank (1-5); the water tank (1-5) is in sealed structure; a water outlet (1-9) and a water inlet (1-10) are arranged on the water tank; one end of the water delivery valve (1-6) can be alternately communicated with the water outlet of the first conveying cylinder and the water outlet of the second conveying cylinder under the driving of the reversing mechanism (1-7); and the other end of the water delivery valve (1-6) is communicated with the water outlet (1-9) of the water tank (1-5). The conveying system can be applied to water supply equipment for outputting high-pressure and high-flow water. The invention also discloses a water supply device provided with the high-pressure water conveying system.

Description

technical field [0001] The invention relates to the technical field of water supply equipment, in particular to a high-pressure water delivery system. The invention also relates to a water supply device provided with said high-pressure water delivery system. Background technique [0002] With the rapid development of economic construction, the number of high-rise (above 10 floors) and super high-rise (above 100 meters) buildings in cities has increased sharply, and the fire rescue problems of super high-rise buildings have attracted more and more attention. [0003] The interior of existing super high-rise buildings is generally equipped with a fire-fighting water supply system, and this preventive fire-fighting facility is only suitable for putting out small-scale fires. Once a large-scale fire occurs in a super high-rise building, the entire internal fire water supply system will be completely surrounded by the fire scene, and the control lines, power supply lines, fire w...

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Problems solved by technology

[0005] For a long time, firefighting equipment such as fire trucks has mostly used centrifugal pumps to provide high-pressure water sources. Due to the limited outlet pressure and flow of centrifugal pumps, the outlet pressure is generally around 1.5-2MPa, and the maximum effective head is about 100 meters, which cannot transport water up to 100 meters. The height of buildings above 1.5 meters cannot meet the fire protection requirements of super high-rise buildings. Although the outlet pressure of the advanced two-stage centrifugal pump can reach 4MPa, under this pressure condition, the water flow is relatively small and cannot provide enough water for fire protection. Operation

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