KR920005740Y1 - Disc drive device of thermal valve for controlling heating and hot water - Google Patents

Abstract

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Description

Disc drive device of thermal valve for controlling heating and hot water

1 is a cross-sectional view of an angle type hot water control valve equipped with the present invention.

2 is a cross-sectional view of a horizontal hot water control valve equipped with the present invention.

3 is a displacement curve of the valve disk according to the hot water temperature change of the valve configured according to the present invention.

Figure 4 is an exemplary view of a conventional thermal valve for heating hot water.

* Explanation of symbols for main parts of the drawings

1: shape memory alloy compression coil spring 2: valve disc

3: head 31: control groove

4: Push rod 5: Compression coil type counter spring

6: bulkhead 7: stopper

8: hot water pipe 8A: inlet

9: stopper 10: main body

The present invention relates to a disk drive device of a thermo-valve for controlling heating and hot water, and in particular, to provide a high-performance hot water control valve that simplifies its structure and responds very quickly and precisely. It is put.

Looking at the disc drive device of the conventional thermal valve for controlling the heating and hot water, as shown in the example of FIG. 4, a bellows in which a liquid or gas is embedded in the internal space of the temperature setting head 100 which is installed in the indoor atmosphere. 101) and the rod 103 is connected between the bellows 101 and the valve disc 102 so that the liquid or gas contained therein indirectly contacts the ambient temperature of the bellows and expands or contracts according to the change in the ambient temperature around the bellows pipe. The valve disc connected to it performs the lifting and lowering action to variably control the hot water inlet opening area in the valve body, so that the amount of hot water passing through the tube per unit time is controlled to maintain the proper heating temperature. .

However, when the conventional hot water control valve using the bellows is installed at the inlet side or the outlet side of the hot water pipe, the bellows temperature is maintained higher than the ambient room temperature because almost a certain amount of heat transfer is performed from the hot water pipe to the bellows. As the ambient temperature changes, the valve disc is opened and closed to control the heating temperature and the function and action are not sensitive and accurate. Due to this, a hot water pipe is installed inside the ondol as in Korea, and when heated by circulating the hot water heated to 60-70 ° C. inside, the heating temperature is uneven in each room. The temperature will result in an uneven state.

In order to solve this problem, multi-layer apartments are specially constructed with piping of hot water pipes on each floor, but there are problems such as excessive cost for equipment and construction.

In addition, although there is a shape memory alloy coil spring control valve such as Japanese Utility Model Publication No. 59-115173, the shape memory alloy coil spring is not suitable as a valve for hot water heating because it is not directly located in the hot water path.

Then, as in Japanese Patent Application Laid-Open No. 60-101377, a spring, which is a shape memory alloy, is provided between the lower surface of the moving ring and the valve seat member forming the valve port so that the moving ring can be lifted through the valve shaft of the valve body. Mount it. In addition, between the upper surface of the movable ring and the fixed flange portion of the upper end of the valve shaft, a coil-shaped buffer spring that absorbs the stretching force of the spring is mounted. Looking at the action, when the inside of the valve body becomes hot due to the passage fluid, The valve port is closed by the valve top part in order to spring up and raise a valve body.

At this time, when the inside of the main body is at a high temperature of 100 ° C. or higher, the spring may be prevented from settling of the spring because its extension force is absorbed by the shock absorbing spring.

However, this means that a separate means for temperature control is not pore, and particularly importantly, the self-elastic control of the shock absorbing spring is not important, and thus the accuracy of the spring and the shock absorbing spring is not corrected due to the elastic force and the temperature displacement of the shock absorbing spring. There is a problem that does not have precision.

In addition, as in Japanese Laid-Open Utility Model Publication No. 57-172, a plurality of bimetal disks are formed in a stack, and the bimetal laminates and bimetal laminates arranged in the valve chamber are covered with a U-shaped cross section, and the flange portion is formed on the outside of the upper end. At the same time, sliding through the inner wall of the valve chamber and guided in the direction of the valve opening, and the elastic member and the bottom surface of the adjusting member and bimetal disposed on the outside of the opening and contacting the flange portion and holding the cylinder in the direction of the opening valve. A valve rod that penetrates the center of the elastic member and the intervening cylinder between the laminates and is engaged with both, and a bimetal inside the intervening cylinder and the valve unit formed at the lower end of the valve cylinder to open and close the valve port by displacement of the valve cylinder. There is a thing provided with the ceiling wall of the valve chamber which has a laminated body and an adjustment member in the upper part.

However, it is difficult to precisely set the temperature control according to three valve displacement conditions such as an elastic member directly biased in the closing valve direction and an elastic member biased in the open valve direction according to the temperature response of the bimetal laminate. That is, because the error of the amount of change for the valve action is large, the adjustment is not easy, in particular, the structure is a complicated problem.

Therefore, there is a problem in that the function and action of adjusting the heating temperature by opening and closing the valve according to the change of the ambient temperature are not sensitive and accurate.

Accordingly, an object of the present invention is to solve the conventional problems as described above, at the same time, the response speed of the valve disk is very fast, the opening and closing operation (Displacement) is precise, the thermal valve for heating hot water control that can efficiently use the thermal energy Disc drive device of the present invention.

Still another object of the present invention is to provide a disk drive device of a thermal valve for controlling heating and hot water, which is relatively simple in structure, which reduces manufacturing cost and maintains the valve life semipermanently due to less trouble.

In order to achieve the above object, the shape memory alloy compression coil spring body and general carbon steel are deformed according to temperature in the hot water amount control rod on the valve disc which is located in the valve body and performs the lifting and lowering operation to open and close the hot water inlet. Based on the displacement according to the elastic difference value between the two springs which are variable according to the water temperature change due to the temperature sensing ability which is the property of the shape memory alloy and the transformation stress exerted during phase transformation by installing the compressed coil type opposing springs The disk of the lifting and lowering operation to control the hot water inlet in the valve body, which will be described in more detail based on the accompanying drawings as follows.

In a thermal valve using a shape memory alloy compression coil spring and a compression coil spring, a hot water pipe 8 opened to an upper part of a blocking part having a hot water inlet 8A, and a central bottom partition wall 6 of a cylindrical body 10 is formed. Each of the upper and lower compression coil springs 5 and the shape memory alloy compression coil springs 1, which are installed by the stopper 7 at a predetermined position on the upper side of the push rod 4 and the valve disk 2 at the lower end, respectively, penetrating the partition wall. Wherein, the push rod is guided through the stopper (9) in the upper portion of the main body and at the same time the heating hot water setting head (3) having a control groove 31 in the corresponding position of the push rod screw configuration on the main body.

Here, the thermal valve for automatic adjustment of the amount of hot water using the shape-alloy alloy uses the temperature sensing ability, which is a property of the shape memory alloy, and the transformation stress exerted upon phase transformation as driving force for opening and closing the valve-disk.

The shape memory alloy used in the present invention is a compressed coil spring whose original memorized shape is an austenite transformation starting temperature (As) which starts to return to the original memorized shape, and is 55 ° C. The austenite transformation finishing temperature (Af), which completely returns to the memorized shape, is 70 ° C.

The shape memory alloy compression coil spring (1) manufactured to have such characteristics has an upper surface of the valve disc (2) in the angled thermal valve (A) of FIG. 1 or the horizontal thermal valve (B) of FIG. A compression coil-type opposing spring made of a general material (carbon steel), not a shape memory alloy, between the upper side of the partition and the stopper 7 on the side of the bulkhead 4 is installed between the bulkheads 6 located above. By installing (5), the operating position of opening and closing the valve disc 2 is determined while balancing the momentary force between these springs according to the temperature of the hot water.

If the temperature of the hot water is above 70 ° C, which is higher than Af, the phase of the shape memory alloy compression spring (1) is completely transformed from the martensite phase to the austenite phase and at the same time. The hot water inlet 8A of the hot water pipe 8 is closed as the valve disc 2 to block the hot water inflow while recovering to the memorized shape.

That is, the force of the shape memory alloy compression spring (1) at a hot water temperature of 70 ℃ or more is called F ₁ , and when the opposing spring (5) is compressed in close contact, by the elasticity of the wire rod to return to the original manufacturing form of the compression spring When the force to go is F ₂ , because F ₁ ≥ F ₂ is provided to drive the valve disk 2 to move downward to close the hot water inlet.

At this time, whether the hot water inlet is completely closed or slightly opened as the valve disc 2 is turned by turning the heating temperature setting head 3 assembled on the main body 10 from side to side to turn the hot water amount control rod 4 to the head 3. It can be adjusted by raising or lowering by the control groove 31 of the inner bottom. At this time, the push rod is guided through the stopper (9).

1 is a diagram showing the position of the valve disc (2) when the temperature of the hot water in the angle type summer valve is 70 ℃ or more.

As shown in FIG. 1, when the temperature of the hot water is 70 ° C. or higher, the valve disc 2 closing the hot water inlet is opened when the temperature of the hot water is lowered to 55 ° C. or lower, as shown in the horizontal thermal valve of FIG. 2. Is maintained at.

That is, when the shape memory alloy compression spring (1) is in close contact with the hot water temperature of 55 ° C or less, the force is called F ₁ 'and deformation is not applied in the form in which the opposing spring (5) is made of the compression spring (1). When the non-force is F ₂ ', the shape of the shape memory alloy compression spring (1) is transformed from the austenite phase to the martensite phase, so that the transformation stress retained in the transformation from the martensite phase to the austenitic phase is retained. Since it loses F ₂ '≥F ₁ ', the position of the valve disc is fixed as shown in FIG. 2 so that the maximum amount of hot water flows into the pipe to maintain an appropriate heating temperature.

3 is a diagram showing a change in position of the valve disk according to the change in the hot water temperature of the present invention, when the hot water temperature is 70 ℃ or more displacement of the valve disc (2) is 4mm, the hot water inlet is directed to the valve disc (2) It is in the same state as in the closed first degree.

When the hot water temperature is 55 ° C. or lower, the displacement of the valve disc 2 is zero, and the hot water inlet is completely open to the valve disc 2.

In addition, when the hot water temperature is 60 ° C, the displacement of the valve disc 2 is 2mm, and when the hot water temperature is 65 ° C, 3mm, the valve disc 2 displacement is appropriately changed as shown in FIG. It shows that it can be adjusted.

Therefore, it can be seen that the displacement of the valve proceeds so that an appropriate amount of hot water flows in accordance with the temperature of the incoming hot water.

At this time, the shape memory alloy compression spring (1) is preferably made of any one of the Ni-Ti shape memory alloy or Cu-Zn-Al or Cu-Zn-Ni-based shape memory alloy due to its functional characteristics.

As described above, it has a very simple structure, and the shape memory spring is made by elastically coupling the spring made of the hostile shape memory alloy that performs transformation according to the temperature of the valve disc and the normal carbon steel spring with the partition wall therebetween. The present invention which controls the hot water inlet as valve disc displacement according to the elastic difference value between springs after sensing the temperature by directly contacting the sewage, the response speed is very fast, the opening and closing operation displacement is precise, the energy can be efficiently used. Of course, it is possible to obtain a uniform heating effect in each room or each floor, and in particular, its structure is very simple, making it easy to manufacture, inexpensive manufacturing cost, and almost no failure, so that it can be extended semi-permanently. It works.

Claims (2)

In a thermal valve using a shape memory alloy compression coil spring and a compression coil spring, a hot water pipe 8 opened to an upper part of a blocking part having a hot water inlet 8A, and a central bottom partition wall 6 of a cylindrical body 10. The upper and lower sides of the compression coil spring (5) and the shape memory alloy compression coil spring (1) which are installed elastically by the stopper (7) at the predetermined position and the valve disk (2) at the upper portion of the push rod (4) penetrating the partition wall Wherein, the push rod is guided through the stopper (9) in the upper portion of the main body and at the same time the heating hot water setting head (3) having a control groove 31 in the push counter corresponding to the screw is connected to the upper body Disc drive device of the thermal valve for controlling heating and hot water. The shape memory alloy compression spring (1) is formed of one selected from Ni-Ti, Cu-Zn-Al, and Cu-An-Ni, and thus the austenite transformation start and completion temperatures are 50 ° C. and 70 ° C. Disc drive device of the thermal valve for controlling the heating hot water, characterized in that set to ℃.