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Fluorine-lined anti-corrosion self-standing regulating valve

A self-supporting, regulating valve technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems affecting the service life of the valve, the wear of the valve core and the valve body, and the decline of the valve sealing, so as to enhance the mechanical performance, avoid the Corrosion and excellent wear resistance

Inactive Publication Date: 2021-09-24
杭州普昌科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Solve the problem that although the existing fluorine-lined anti-corrosion self-supporting control valve has excellent anti-corrosion performance, its wear resistance is poor. After a long period of use, the valve core and the valve body are severely worn, resulting in a sharp drop in valve sealing and affecting the use of the valve. The problem of longevity

Method used

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  • Fluorine-lined anti-corrosion self-standing regulating valve
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  • Fluorine-lined anti-corrosion self-standing regulating valve

Examples

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Effect test

Embodiment 1

[0037] see Figure 1-3 As shown, this embodiment is a fluorine-lined anti-corrosion self-supporting regulating valve, including a support chassis 101, a mounting frame 102, a turntable 103, a threaded rod 104, a mounting chassis 105, a valve body shell 106, a fluorine-lined inner pipe 107, a lining Fluorine spool 108, back-moving spring 109, the top of described valve body housing 106 is installed with installation chassis 105, and the top of described installation chassis 105 is installed with support chassis 101, and the top of described support chassis 101 is equipped with installation frame 102, so A threaded rod 104 is installed through the mounting frame 102, and the threaded rod 104 is threadedly connected with the mounting frame 102, and a turntable 103 is installed on the top of the threaded rod 104;

[0038] A fluorine-lined inner tube 107 is installed inside the valve housing 106, a fluorine-lined valve core 108 is slidably connected to the inner cavity of the fluor...

Embodiment 2

[0042] Present embodiment is a kind of preparation process of modified polytetrafluoroethylene, comprises the following steps:

[0043] A1: Add carbon tetrachloride, catalyst and deionized water into the reactor, then add hexafluoropropylene oxide into the reactor at a temperature of 15°C, and stir at a constant temperature at a stirring rate of 50r / min Reaction for 30 minutes, after the reaction, the reaction product was left to stand for stratification, the lower layer was rectified, and the fraction at 54°C was collected to obtain an intermediate product; the moles of carbon tetrachloride, catalyst, deionized water, and hexafluoropropylene oxide were controlled The ratio is 5:0.25:0.06:10, and the catalyst is cesium chloride;

[0044] A2: Add anhydrous sodium carbonate and dimethylacetamide to the reaction kettle, stir and mix for 5 minutes at a stirring rate of 50r / min, then add the intermediate product and continue to stir for 30 minutes, and then mix at a temperature of ...

Embodiment 3

[0047] Present embodiment is a kind of preparation process of modified polytetrafluoroethylene, comprises the following steps:

[0048] A1: Add carbon tetrachloride, catalyst and deionized water into the reactor, then add hexafluoropropylene oxide into the reactor at a temperature of 20°C, and stir at a constant temperature at a stirring rate of 150r / min React for 60 minutes. After the reaction, the reaction product is left to stand for stratification, the lower layer is rectified, and the fraction at 56 ° C is collected to obtain an intermediate product; the moles of carbon tetrachloride, catalyst, deionized water, and hexafluoropropylene oxide are controlled The ratio is 5:0.25:0.06:10, and the catalyst is tetramethylethylenediamine;

[0049] A2: Add anhydrous sodium carbonate and dimethylacetamide into the reaction kettle, stir and mix for 10min at a stirring rate of 100r / min, then add the intermediate product and continue stirring for 60min, and then mix at a temperature o...

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Abstract

The invention discloses a fluorine-lined anti-corrosion self-standing regulating valve, and relates to the field of valves. The fluorine-lined anti-corrosion self-standing regulating valve comprises a supporting base plate, a mounting frame, a rotary table, a threaded rod, a mounting base plate, a valve body shell, a fluorine-lined inner pipe, a fluorine-lined valve core and a reset spring. The fluorine-lined anti-corrosion self-standing regulating valve realizes flexible control of the regulating valve through segmented design of the fluorine-lined inner pipe and the fluorine-lined valve core, water is prevented from entering the position above the fluorine-lined valve element, and the situation that the sealing performance and the service life of the regulating valve are affected due to the fact that the reset spring and the threaded rod are corroded is avoided; and through the fluorine-lined inner pipe and the fluorine-lined valve core which are made of wear-resistant and corrosion-resistant materials, the mechanical property is enhanced while a good corrosion-resistant effect is ensured, the wear resistance is excellent, the fluorine-lined inner pipe and the fluorine-lined valve core are still difficult to damage after being rubbed for multiple times, and the sealing performance and the service life of the regulating valve are further ensured.

Description

technical field [0001] The invention relates to the field of valves, in particular to a fluorine-lined anti-corrosion self-supporting regulating valve. Background technique [0002] The valve is a control component in the fluid delivery system, which has functions such as cut-off, regulation, flow diversion, backflow prevention, pressure stabilization, and flow diversion. The valve is an integral part of the fluid piping system, and the pressure, temperature and flow of the fluid medium can be changed by adjusting the valve. In the prior art, polytetrafluoroethylene is used as the fluorine-lined material to increase the corrosion resistance of the valve. [0003] PTFE has the characteristics of excellent dielectric properties, chemical corrosion resistance, high and low temperature resistance, waterproof, non-stick, low friction coefficient, good self-lubrication, etc. It has been widely used in petrochemical, electronics, electrical, aviation, aerospace, Industrial fields...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K25/04F16K31/60F16K31/50F16K1/36F16K27/02B29B7/28B29C35/02
CPCF16K25/04F16K31/60F16K31/50F16K1/36F16K27/0272B29B7/28B29C35/02
Inventor 柴俊赵亚南
Owner 杭州普昌科技有限公司
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