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Temperature control valve made of shape memory alloy material

A technology of valves and valve plates, applied in valve details, valve devices, valve operation/release devices, etc., can solve problems such as valve closure, and achieve the effects of simple structure, obvious shape changes, excellent stability and reliability

Active Publication Date: 2012-10-31
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, if the memory alloy material is still installed at the valve port, it is easy to cause the valve to close because the valve port area has reached the specified temperature, but in fact the temperature of the controlled area has not dropped to the specified target.

Method used

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  • Temperature control valve made of shape memory alloy material
  • Temperature control valve made of shape memory alloy material
  • Temperature control valve made of shape memory alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] figure 1 It is a top view of the overall structure of the present invention, showing the open state of the valve, communicating with the inside and outside.

[0015] figure 2 for figure 1 The A-A sectional view shows the working condition of the control room when the valve is open, the SMA spring is contracted and tightened, and the return spring is stretched and stressed.

[0016] image 3 for figure 1 The B-B sectional view of the valve shows the working condition of the valve chamber when the valve is open. The valve plate is rotated and opened under the force of the SMA spring, and the inside and outside are connected to realize heat exchange. The word "inside" marked in the figure is connected with the controlled area, and the word "outside" marked is connected with the external environment.

[0017] Such as Figure 1-3 As shown, the present invention regulates and controls the temperature valve, which includes a case shell 1, a valve plate 2, a partitio...

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Abstract

The invention discloses a temperature control valve made of a shape memory alloy material, which comprises an SMA spring, a back-moving spring, a connecting rod, a gear, a baffle and the like, wherein the SMA spring synchronously has the functions of temperature sensing and driving, when the environment temperature is lower than the controlled temperature, the SMA spring is in a release condition, and the valve is closed right now. When the temperature rises above the controlled temperature, the SMA spring is compressed, and outputs an enough pull for pulling the connecting rod to anticlockwise rotate so that the operating gear rotates and drives the baffle to rotate, the valve is opened, thus the aim of circulating cooling is achieved; when the temperature drops and falls back above the controlled temperature, the valve baffle returns in situ under the effect of the back-moving spring, the valve is closed, such intelligent reciprocation is carried out, so that the temperature of the cavity is controlled within the specified range. Through regulating the initial pull of the back-moving spring, the controlled temperature and the control rate can be regulated. The temperature control valve made of the shape memory alloy material has advantages of simple structure, high sensitivity, reliability and stability, cleanness and environmental friendliness, and no need of a power supply.

Description

technical field [0001] The invention relates to a valve for adjusting and controlling the temperature of a chamber, in particular to a valve with an intelligent opening and closing function, which is applicable to the temperature regulation of a general fluid chamber. Background technique [0002] At present, many known on-off valves for heating and ventilation, temperature control, and flow regulation require manual or electric opening and closing, consuming manpower and electricity. The existing energy-saving shape memory alloy automatic regulating valve cannot regulate the degree of valve opening, and there are certain limitations on the speed and intensity of temperature regulation. Typically, many application designs place the shape memory alloy directly near the valve port. For a large range of controlled areas, the correct perception of the temperature of the controlled area plays a key role in the normal operation of the valve. At this time, if the memory alloy mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/70
Inventor 邹鸿生李华胡舜迪
Owner ZHEJIANG UNIV
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