Constant-pressure water taking valve

Abstract

The invention provides a constant-pressure water taking valve. A valve body (1), a water inlet end (7) and a water outlet end (6) are included. The constant-pressure water taking valve is characterized in that a valve cavity is internally provided with a spring (3), the rear end of the spring is fixedly connected with a pressing block (4), the front end of the spring is fixedly connected with therear portion of a valve clack (2), a way limiting protruding block (5) is arranged on an inner cavity of the valve body, a supporting plate (6) protrudes out of the rear portion of the way limiting protruding block, a large notch is formed in the middle portion of the supporting plate, and the rear end is fixedly connected with the pressing block. In the water utilization high peak, when the waterpressure of a municipal administration water supply pipe network is reduced to the normal water supply pressure, the constant-pressure water taking valve is closed under the action of the spring, andnormal water supply pressure of the municipal administration water supply pipe network is guaranteed; and in the water utilization low ebb, the water pressure of a water taking pipe network namely the municipal administration water supply pipe network is increased, the constant-pressure water taking valve is automatically opened under the action of the pipe network pressure, corresponding-flow water enters an adjusting water tank, and supplementing water in the water utilization high peak is stored.

Description

technical field [0001] The invention belongs to the field of valves, in particular to a constant pressure water intake valve. Background technique [0002] With the rapid development of high-rise buildings in cities and towns, it poses a challenge to the normal water supply of high-rise and low-rise buildings in cities and towns. Many old urban water supply pipe networks are difficult to ensure the normal water supply pressure and water supply during peak water consumption. In order to solve the problem of drinking water in high-rise buildings The problem is that people currently use two water supply modes. One mode is to put the water from the water supply pipe network into the pool, and then pump the water in the pool to pressurize it for use by residents in high-rise buildings. Another mode is to overcome the energy waste of the water supply network, and adopt the water supply mode with superposition of non-negative pressure pipe network. This water supply mode is becomin...

AI Technical Summary

Problems solved by technology

In the first water supply mode, as long as there is water in the water supply pipe network and the pool needs water, the water in the water supply pipe network will be poured into the pool. In the second water supply mode, as long as the water supply pipe network does not form negative pressure, the water pump will continue to supply water. Water is taken from the pipe network to supply water to the high area. The above two modes will cause fluctuations in water pressure and no water use for households in the low area (the water intake network)

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