Pressure-superposed variable frequency pressurization water supply tank and pipe network flow proportioning flexible intelligent control device

Abstract

The invention discloses a pressure-superposed variable frequency pressurization water supply tank and a pipe network flow proportioning flexible intelligent control device, comprising a drive motor, a transmission mechanism, a valve core, two flow meters, a Venturi structure pipe fitting and an intelligent controller, wherein the drive motor is mounted on the outer wall of the pipe fitting and drives the valve core to move back and forth through the transmission mechanism, thus realizing the flexible adjustment of the water supply flow of an urban tap water pipe network; the water flow of thewater tank changes along with the change of suctioning negative pressure caused by the change of the flow of a nozzle; the two flow meters are mounted at the inlet of the tap water pipe network and the water inlet of the water tank, respectively, thereby monitoring the flow conditions of the two water inlets; and when the flows of the two inlets meet the proportioning requirements, the adjustmentis completed so as to satisfy timely circulation of the water of the water tank and meet the water supply requirements in different cases at any time. The pressure-superposed variable frequency pressurization water supply tank and the pipe network flow proportioning flexible intelligent control device are simple in structure, simple and convenient to adjust, high in automation degree, and suitable for large-area popularization and application in urban water supply systems.

Description

technical field [0001] The invention relates to a water supply equipment, in particular to a superimposed variable frequency pressurized water supply water tank and a flexible intelligent control device for flow ratio of pipe networks. Background technique [0002] In our country, with the step-by-step acceleration of urbanization and the increase of high-rise buildings, the application range of secondary water supply is becoming more and more extensive. Most of the existing secondary water supply equipment has problems such as insufficient water supply guarantee and large hydraulic loss. There is still a lack of perfect technical devices in terms of ensuring regular and timely circulation of water in the balance tank, real-time monitoring of water flow and proportioning according to needs. The country's energy-saving standards for secondary water supply equipment are constantly improving, and new requirements are constantly being put forward for the type and area of ​​use o...

AI Technical Summary

Problems solved by technology

[0003] Patent No. 200720111035.8 discloses a secondary water supply device in the water pipe network, which is characterized in that it includes a water storage bag and a pneumatic constant pressure water supply device connected to the water storage bag, which can be used when the water supply pressure is lower or higher. In the case of demand pressure, the water storage bag is used to balance the pressure, so as to realize the secondary constant pressure water supply. The problem in this device is that although the water storage bag is made of non-toxic plastic and mesh fiber, it can withstand water pressure. Soft bladder, but if the water supply of the pipe network meets the requirements for a long time, the water in it cannot be effectively and timely circulated without using the water storage bladder, and the long-term non-circulation will inevitably have a bad impact on the quality of the stored water

[0004] Patent No. 93241935.6 discloses an adjustable proportional jet device. The jet device similar in principle is widely used in the current jet pressurized water supply system, which solves the problem that the jet itself cannot be controlled and adjusted to enter The problem of the sucked fluid in the mixing chamber of the ejector is characterized in that there is a water sealing piece at the nozzle, and the amount of the sucked fluid entering the mixing chamber can be adjusted and controlled by turning the handle, so that the water inlet of the pipe network and the water inlet of the water tank can be adjusted arbitrarily In order to meet different water demands, the energy-saving effect of jet pressurized water supply can be realized, but the problems here are: the lack of real-time monitoring and automatic adjustment of the flow rate, the regular circulation of water in the tank cannot be guaranteed, and the timeliness , automation and work efficiency need to be further improved

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