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Control system and control method of high-temperature valve with cooling function

A control system and high-temperature valve technology, applied in valve heating/cooling devices, valve lift, heat preservation, etc., can solve problems such as difficulty in resisting valve stem fatigue stress, affecting the accuracy of test results, and affecting the safety of test components, etc., to achieve Better cooling effect, lower temperature, effective temperature control

Pending Publication Date: 2019-10-29
哈工大机器人(岳阳)军民融合研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After the thermal valve provided by the prior art works for a long time, the welding seam closing the cooling water channel cracks, causing the cooling water to enter the valve cavity along the crack, and become liquid water or even solid ice during the expansion of the compressed air, which affects the accuracy of the test results Sexuality, and even affect the safety of test components
[0003] Dissimilar metals are welded to form a cooling water flow channel. After working for a long time, cracks will appear in the welded joints. It is difficult for the welded joints between dissimilar metals to resist the fatigue stress caused by the repeated impact of the valve stem, and eventually the weld will crack.

Method used

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  • Control system and control method of high-temperature valve with cooling function
  • Control system and control method of high-temperature valve with cooling function
  • Control system and control method of high-temperature valve with cooling function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A control system for a high temperature valve with cooling function, such as figure 1 Shown: When the thermal valve is in a closed state, the components that are in direct or indirect contact with the stored high-temperature and high-pressure gas need to have sufficient mechanical strength, heat resistance, and heat insulation design. For example, the moving parts composed of the valve core 5 and the valve stem 9, the lower end of the valve core 5 generally needs to be equipped with a heat insulation block, and the outside is covered with a heat insulation coating; the valve stem 9 is generally hollow, and a valve stem is inserted in the center of the inner cavity to cool Pipe 18, when the hot valve is closed, cooling water is introduced from the water inlet 16 of the cooling pipe at the top of the valve stem 9, delivered to the valve core 5 through the valve stem cooling pipe 18 and cooled, and then discharged from the valve stem through the water outlet 17 of the cooli...

Embodiment 2

[0046] The invention provides a control system for a high temperature valve with cooling function, as attached figure 2 As shown, the cooling water channel 33 in the valve seat is completely contained in the single metal in the valve seat 6 .

[0047] The cooling water channel 33 in the valve seat is an annular closed area formed by wrapping the valve seat 6 and the valve seat water channel cover 6-1, as figure 2shown. The extended pipeline of the cooling water channel passes through the valve body 2 and has two interfaces with the outside world, namely: the cooling water passes through the valve body inlet channel 33-1 and the cooling water passes through the valve body outlet channel 33-2, and the cooling water passes through the valve body The inlet channel 33-1 is isolated from the cooling water outlet channel 33-2 through the valve body by a cooling water partition 33-3, and is closely arranged on one side of the valve seat, such as image 3 As shown; the cooling wate...

Embodiment 3

[0053] The present invention provides a control system for a high temperature valve with cooling function. The cooling water channel 34 in the valve body is completely contained in the single metal in the valve body 1 .

[0054] The cooling water channel 34 in the valve body is an annular closed section formed by wrapping the valve body 1 and the valve body water channel cover 1-1. The valve body water passage cover 1-1 and the valve seat 6 are closely fitted together. The cooling water channel is directly opened on the valve body 1 and connected with the outside world. Two interfaces are provided, namely: the cooling water inlet channel 34-1 and the cooling water outlet channel 34-2, and the cooling water inlet channel 34-1 and the cooling water channel. The water outlet channels 34-2 are separated by the cooling water partition 8-3, and are arranged close to the side of the valve seat; the cooling water flows in from the cooling water inlet channel 34-1, and after passing th...

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Abstract

The invention relates to a control system and a control method of a high-temperature valve with a cooling function. The control system of the high-temperature valve with the cooling function comprisesa support, wherein the support is arranged on a valve cover; an oil cylinder is arranged on the support and is connected with a piston; the piston is connected with a piston rod; the piston rod is connected with a valve rod through a valve rod connector; a valve rod cooling pipe is arranged in the valve rod; a valve element is arranged on the bottom part of the valve rod; a valve seat and a lowerheat-insulation sleeve are arranged under the valve element; the lower heat-insulation sleeve penetrates through an inlet end pressure test blind plate through a pipeline I and is connected with a nitrogen storage device; a gas cylinder adjusting valve, a deep layer control valve and a pressure gage are sequentially arranged on the pipeline I; the inlet end pressure test blind plate is connectedwith a valve body; a heat-insulation filler is arranged between the valve body and a middle heat-insulation sleeve; the middle heat-insulation sleeve penetrates through an outlet end pressure test blind plate through a pipeline II; a needle valve, a distilled water bottle and a flowmeter are sequentially arranged on the pipeline II; and a water cooling structure is arranged on the valve seat or the valve body. The invention provides the control system for the high-temperature valve.

Description

Technical field: [0001] The invention relates to a control system and a control method of a high temperature valve with cooling function. Background technique: [0002] After the thermal valve provided by the prior art works for a long time, the welding seam closing the cooling water channel cracks, causing the cooling water to enter the valve cavity along the crack, and become liquid water or even solid ice during the expansion of the compressed air, which affects the accuracy of the test results performance, and even affect the safety of test components. [0003] Dissimilar metals are welded to form a cooling water flow channel. After working for a long time, cracks will appear in the welded joints. It is difficult for the welded joints between dissimilar metals to resist the fatigue stress caused by the repeated impact of the valve stem, and eventually the weld will crack. Invention content: [0004] The object of the present invention is to provide a control system fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K49/00F16K27/02F16K27/08F16K1/32F16K1/42F16L59/16
CPCF16K49/00F16K49/002F16K27/0272F16K27/08F16K1/32F16K1/42F16L59/16
Inventor 刘世青唐霄汉陆华伟王猛王大勇隋国发刘志伟梁先仁
Owner 哈工大机器人(岳阳)军民融合研究院
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