Pressure regulator

Abstract

The invention discloses a pressure regulator, and belongs to pressure reduction devices. The pressure regulator structurally comprises an upper shell body, a lower shell body, a rubber diaphragm, a support, a partition plate, a guide groove, a push rod, a conical body, an inner core, a lower plugging plate, an upper plugging plate and a pressure-regulating device. The rubber diaphragm is arranged between the upper shell body and the lower shell body, the support is arranged on the upper portion of the rubber diaphragm, and the pressure-regulating device is arranged on the upper portion of the support. The partition plate and the inner core are arranged on the lower portion of the rubber diaphragm, the conical body is arranged on the inner core, the push rod is arranged on the upper portion of the conical body, and the push rod is fixedly connected with the rubber diaphragm and the support. An inlet pipe is arranged on the lower shell body arranged on the lower portion of the inner core, and a water discharging pipe is arranged on the lower shell body arranged on the upper portion of the inner core. An inner cavity between the lower shell body and the upper shell body and between the partition plate and the upper plugging plate is divided into a high pressure cavity and a low pressure cavity through the rubber diaphragm. A high pressure water inlet is formed in the lower shell body at the position of the high pressure cavity. A low pressure communicating pipe is arranged between the water discharging pipe and the upper shell body. The pressure regulator has the advantages of being capable of automatically adjusting return water pressure, automatically shutting down after a water pump stops and the like.

Description

technical field [0001] The invention relates to a decompression device, in particular to a pressure regulator for heating return water. Background technique [0002] There are high-rise buildings and low-rise buildings in the community for heating at the same time. The most economical method is to pressurize the circulating water in the low area to the height required by the high area through a booster pump for heating. The heating return water is decompressed and merged into the return water in the low area for circulating heating . [0003] Pressure reducing valves are generally used in the market now, but pressure reducing valves are not specially developed for high-rise heating systems, and some performance parameters are not suitable for direct-connected heating systems in high-rise buildings. In the heating system, the pressure of the return pipe is sometimes high and sometimes low. When the system stops, the return water of the heating system in the high area must be...

AI Technical Summary

Problems solved by technology

In order to ensure the reciprocating movement, there must be a certain gap between the pistons, but it must also ensure that the water in the high-pressure area and the low-pressure area does not flow through the gap between the pistons, so the machining accuracy of this equipment is very high, it is not easy to process, and it is easy to block and jam.

[0006] Currently, there is no good solution

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