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Pneumatic large-temperature-difference closed insulation air valve

An airtight, large temperature difference technology, applied in the direction of valve details, valve devices, engine components, etc., can solve the problems that air valve airtightness and opening and closing performance cannot be guaranteed, so as to ensure airtightness and normal opening and closing, and strong versatility , Guarantee the effect of normal work

Pending Publication Date: 2018-12-18
南京久鼎环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: the present invention provides a pneumatic large temperature difference airtight heat preservation air valve, which solves the problem that the existing air valve cannot guarantee the airtightness and opening and closing performance of the air valve under test conditions

Method used

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  • Pneumatic large-temperature-difference closed insulation air valve
  • Pneumatic large-temperature-difference closed insulation air valve

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Embodiment Construction

[0018] see Figure 1 to Figure 2 , the pneumatic large temperature difference airtight heat preservation damper described in an embodiment of the present invention includes a valve body 1 made of polyurethane heat preservation board, a telescopic mechanism capable of opening and closing the valve body 1, and a gap between the periphery of the valve body 1 and the air duct. the sealing mechanism.

[0019] The telescopic mechanism includes: a double-acting cylinder 2 with two shafts and a guide rod and a fixing part 3. One end of the fixing part 3 is connected to the end face of the piston rod 21 of the cylinder 2, and the other end is connected to the side of the valve body 1 through the screw rod 4, and is controlled by the cylinder. 2 to control the opening and closing of the air valve.

[0020] The sealing mechanism includes a sealing rubber strip 5, which adopts double sealing. There is an electric heating belt 6 inside the sealing rubber strip 5. The electric heating belt...

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Abstract

The invention discloses a pneumatic large-temperature-difference closed insulation air valve. The pneumatic large-temperature-difference closed insulation air valve comprises a valve body made of an insulation plate; an extension mechanism capable of opening or closing the valve body is arranged on one side of the valve body; and a sealing mechanism is arranged on the contacted surface of the periphery of the valve body with an air way. Under the condition of large internal and external temperature difference of the air valve, the tightness and the normal opening and closing of the pneumatic large-temperature-difference closed insulation air valve are guaranteed; the tightness performance is excellent; and in a low-temperature state, ice can be quickly molten, and the normal work can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of air valves, in particular to a pneumatic large temperature difference airtight heat preservation air valve. Background technique [0002] The air valve is an indispensable central air-conditioning terminal fitting in the ventilation, air conditioning and air purification projects of industrial plants and civil buildings. It is generally used in air conditioning and ventilation system pipes to adjust the air volume of branch pipes, and can also be used for fresh air and return air. Blend adjustment. [0003] Dampers are widely used in industrial, mining, and civil building HVAC systems to precisely adjust air flow and are one of the key devices to control ventilation modes in various environments. Its main features are flexible operation, low noise, small leakage, (closed type leakage <0.5%) wide working temperature range, reliable structure, safety and convenience. [0004] In view of the current res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06F16K31/12F16K49/00
CPCF16K31/06F16K31/12F16K49/002
Inventor 周荣辉赵东华刘先国李阳阳
Owner 南京久鼎环境科技股份有限公司
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