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Pressure regulating valve

A technology of pressure regulation and seat regulation, applied in the field of pressure regulating valve, can solve the problems of bellows being compressed or stretched, etc.

Active Publication Date: 2018-03-06
ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a pressure regulating valve to solve the problem that the assembled bellows may be compressed or stretched in the prior art

Method used

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0028] figure 2 A schematic cross-sectional view of an embodiment of a pressure regulating valve according to the invention is shown. Such as figure 2 As shown, the pressure regulating valve of this embodiment includes a valve pipe 10 , a valve seat 20 , a valve stem 30 , a bellows assembly 50 and an adjustment seat 60 . Wherein, the valve tube 10 has an inner cavity, and the valve seat 20 is fixedly arranged in the inner cavity. A first end of the valve stem 30 passes through the valve seat 20 , and a valve plate 40 matched with the valve seat 20 is disposed in the middle of the valve stem 30 . The bellows assembly 50 is disposed in the inner chamber and includes a bellows 51 and a fixin...

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Abstract

The invention provides a pressure regulating valve. The pressure regulating valve comprises a valve pipe, a valve base, a valve rod, a corrugated pipe assembly and a regulating base; the valve pipe isprovided with an inner cavity; the valve base is fixedly arranged in the inner cavity; the first end of the valve rod penetrates through the valve base, and the middle of the valve rod is provided with a valve plate matched with the valve base; the corrugated pipe assembly is arranged in the inner cavity and comprises a corrugated pipe and a fixing portion, the first end of the corrugated pipe isconnected with the second end of the valve rod, and the fixing portion is connected to the second end of the corrugated pipe; and the regulating base is installed in the valve pipe and fixedly connected with the valve pipe, and a first preset distance is formed between the fixing portion and the regulating base. According to the technical scheme, the problem that in the prior art, an assembled corrugated pipe is likely to be compressed or stretched is solved.

Description

technical field [0001] The invention relates to the field of valves, in particular to a pressure regulating valve. Background technique [0002] The pressure regulating valve is mainly used in the refrigeration system to stabilize the pressure of the evaporator or condenser, so that the refrigeration system can operate stably, reliably and effectively under different ambient temperatures and heat load conditions. [0003] Taking the condensing pressure regulating valve as an example, its internal structure is as follows: figure 1 As shown, the working principle is as follows: the regulating valve includes main parts such as inlet pipe 1', outlet pipe 2', bellows 10', regulating spring 20', valve seat 30' and valve plate 40'. When the ambient temperature is low, the condensing pressure of the refrigerant is low, that is, lower than the setting value of the condensing pressure regulating valve, and the thrust of the refrigerant pressure entering the pressure regulating valve ...

Claims

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Application Information

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IPC IPC(8): F16K17/06F16K17/164
CPCF16K17/06F16K17/164
Inventor 不公告发明人
Owner ZHEJIANG SANHUA COMMERCIAL REFRIGERATION CO LTD