Anti-freezing corrugated pipe pressure gage

A pressure gauge and bellows technology, applied in the field of antifreeze bellows pressure gauge, can solve the problems of high pressure, condensation and freezing, inaccurate measurement, etc., and achieve the effect of fast heating, low cost and safety guarantee

Inactive Publication Date: 2015-01-21
成都卓微科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in open air use, especially in cold seasons, the water entering the pressure gauge may condense and freeze, resulting in inaccurate pressure measurement, and even permanent deformation of the elastic components of the pressure gauge.
Inaccurate measurement, which may cause excessive pressure in the water supply process and rupture the water pipeline

Method used

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  • Anti-freezing corrugated pipe pressure gage

Examples

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 As shown, an antifreeze bellows pressure gauge includes a gauge head 1 and a joint 2, and the joint 2 is wrapped with an anti-overheating layer 4, a heating layer 5, a heat insulation layer 7, and an insulating layer in turn; the anti-overheating layer 4 is filled with There is antifreeze; the heating layer 5 , heat insulation layer 7 , and insulation layer are all provided with two through holes, and the heating resistance wire 6 is penetrated through the through holes and wound on the inner wall of the heating layer 5 . A bellows 3 serving as a pressure transmission device is arranged inside the joint 2 . The insulation layer 7 is filled with polyurethane foam. The insulating layer is a rubber sheath 8 .

[0018] When in use, antifreeze is filled in the anti-overheating layer 4, and the antifreeze does not fill the ...

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PUM

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Abstract

The invention discloses an anti-freezing corrugated pipe pressure gage, and belongs to the field of instruments. The corrugated pipe pressure gage comprises a gage head and a joint; the joint is sequentially wrapped by an anti-overheating layer, a heating layer, a heat insulating layer and an insulation layer; the anti-overheating layer is filled with anti-freezing liquid; each of the heating layer, the heat insulating layer and the insulation layer are provided with two through holes; heating resistance wires penetrate through the through holes and are wound on the inner wall of the heating layer. The anti-freezing corrugated pipe pressure gage effectively solves the problem that in a cold season, the pressure gage is used in the open air, and measuring is inaccurate.

Description

technical field [0001] The invention relates to the field of instruments, in particular to an antifreeze bellows pressure gauge. Background technique [0002] In the water supply system, the pressure represents an essential measuring instrument, often used in the open air. Before the pressure gauge is installed at the factory, there is a cavity with a certain volume inside the pressure gauge. When in use, a small amount of medium will enter this cavity to generate pressure and compress the elastic element. However, in open-air use, especially in cold seasons, the water entering the pressure gauge may condense and freeze, resulting in inaccurate pressure measurement, and even causing permanent deformation and failure of the elastic components of the pressure gauge. Inaccurate measurement may cause excessive pressure in the water supply process to rupture the water pipeline. Contents of the invention [0003] The present invention aims to provide an antifreeze bellows pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L7/06
Inventor 刘林
Owner 成都卓微科技有限公司
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