Pressure breaking device

Abstract

The invention provides a pressure breakage device which is applied to a liquid circulation system and realizes a pressure reduction and automatic switching function. The invention solves the problem that a relief valve sold in the market has unideal shutdown, no exhaust function, complex structure and low reliability. A highrise building no-water tank direct connection heat supply system belongs to an open typed system which can not be applied to a deoxidized heat supply system. The key points of the invention are that the invention is a cross-shaped four-way pipe; the two pipes in the horizontal direction are respectively a water inlet pipe and a water outlet pipe; the internal chambers of the two pipes are changed from gradual reduction shape to gradual enlargement shape; an upper pipe and a lower pipe in vertical direction are respectively a low-pressure driving pipe and a high-pressure driving pipe; the lower end of the high-pressure driving pipe is a taper; the internal chamber wall of the upper end of the low-pressure driving pipe is provided with a lug boss which plays a position limit role; the internal chambers of the high-pressure driving pipe and the low-pressure driving pipe are provided with adjusting columns; the column body is cut with a transverse through hole; the position of the transverse through hole is that when the adjusting columns move upwards to the position limit lug boss, the water inlet pipe and the water outlet pipe are communicated by the transverse through hole.

Description

technical field [0001] The invention relates to a device used in a liquid circulation system to realize decompression, automatic switch and exhaust functions, such as a device used in a heating system, a central air-conditioning water system, or a hot water supply system to realize decompression, automatic switch and exhaust function of the valve. Background technique [0002] Using one boiler to supply heat to high-rise buildings and low-rise buildings in the area at the same time, the most economical method is to use the low-temperature water heat source system in the original low-level area for direct connection heating, such as the direct-connection heating system without water tanks for high-rise buildings that has appeared in recent years, and Use a pressure reducing valve type method etc. in the system. [0003] The pressure reducing valve currently available on the market is not specially designed for the direct connection heating system, but is used by the direct c...

AI Technical Summary

Problems solved by technology

[0003] The pressure reducing valve currently available on the market is not specially designed for the direct connection heating system, but is used by the direct connection heating system. Therefore, some parameters and performance of the pressure reducing valve are not completely suitable for the direct connection heating system, such as Unsatisfactory shut-off function, lack of exhaust function, etc.

Not only that, but it also has troubles in manufacturing and low reliability due to its complex structure.

In particular, when the system stops running, it is necessary to set an electric valve to shut off, which is not only easy to damage due to frequent actions, but also has the disadvantage of unreliable shut-off when the power is suddenly cut off.

[0004] The direct-connected heating system without a water tank in high-rise buildings can effectively overcome the above-mentioned defects of the pressure reducing valve, but it belongs to an open system and communicates with the atmosphere, so it cannot be applied to the heating system that removes oxygen

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