KR20080082873A - An automatically regulated flux valve according to water temperature - Google Patents

Abstract

A water temperature sensing type automatic flow control valve is provided to extend lifespan thereof by easily removing fluid sediments accumulated in a lower guide hole and preventing introduction of fluid into the lower guide hole. A valve body(10) has an inlet(11) to admit hot water, a branch unit(12) to branch the hot water, and an outlet(13) to discharge the hot water. A valve disk(20) opens and closes the branch unit of the valve body. A valve stem(30) is coupled with the valve disk to be axially interlocked. An upper stem guider(40) is coupled with an upper part of the valve body. A lower stem guider(50) is coupled with a lower part of the valve body. An SMA(Shape Memory Alloy) spring(60) is supported by the upper stem guider and applies elastic force inside the valve body. A return spring(70) is supported by the lower stem guider and applies the elastic force inside the valve body. An upper cap(80) is coupled with the upper stem guider to protect the valve stem. A lower cap(90) is coupled with the lower stem guider to protect the valve stem. A lower cap has a hole(91) at a lower part and a cap(92) to cover the hole.

Description

{An automatically regulated flux valve according to water temperature}

1 is a cross-sectional view of a conventional water temperature sensing automatic flow control valve

Figure 2 is a cross-sectional view of the water temperature sensing automatic flow control valve according to the present invention

Figure 3 is another cross-sectional view of the water temperature sensing automatic flow control valve according to the present invention

Figure 4 is a sectional view showing another water temperature sensing automatic flow control valve according to the present invention.

Figure 5 is a sectional view showing a third water temperature sensing automatic flow control valve according to the present invention.

6 is a sectional view showing a fourth water temperature sensing automatic flow control valve according to the present invention;

Figure 7 is a partial perspective view showing a water temperature sensing automatic flow control valve according to the present invention.

The present invention relates to a water temperature sensing automatic flow control valve, and more particularly, a water temperature sensing automatic flow control valve in which opening and closing of the valve is determined by a difference between the elastic force of the SMA spring and the elastic force of the return spring according to the temperature of the flow rate. It is about.

The motivation for the creation of temperature-sensing valves is due to Korea's desire to reduce heating energy due to the energy surge in the late 1980s. However, temperature-sensitive valves are inadequate for controlling floor temperature in ondol heating as a system for controlling room temperature. In order to solve this problem, we have developed a temperature-sensing temperature control valve using SMA spring.As a result of the excellent adjustment, we have started to make a breakthrough in reducing fuel consumption in addition to the purpose of temperature control. .

The temperature-sensing valve and the temperature-sensing valve are roughly divided into two. First, the temperature-sensing valve is “inert”, and the heating water is circulated. It is a way to control the room temperature.

In this method, the heating water covered by the boiler moves through the pipe under the floor, conducting heat to the mortar layer of the floor, increasing the floor temperature, and heat-exchanging with the room air again. The heat source is detected by the sensor of the boiler or the room con 'attached to the wall. When the proper temperature is reached, the boiler is stopped for individual heating and the capillary tube or power supply for central heating and district heating. By turning on / off or proportional opening / closing of the valve, shut off the supply of heat source by closing the operation valve installed in the distributor, and when the temperature falls again, restart the boiler or open the operation valve to circulate the heating water. Adjust

Such a temperature-sensing valve is uneconomical because high-temperature heating water must be circulated or passed through the inside of the piping until the room temperature rises to shut off the valve, and wires or capillary tubes must be buried during installation. There is an inconvenience in using the temperature control. In addition, there is a problem in that cooling or overheating during power failure is inevitable and defects occur due to damage of chemical substances such as paraffin solution or electric coils due to latent heat or chemical reaction during long-term use.

Next, the water temperature-sensing valve is “magnetic” and when the heating water circulates and reaches the distributor, the temperature-sensing valve of the recovering unit is automatically proportionally regulated and the temperature of the heating water is adjusted.

This water temperature sensing valve has a purpose to give residence time for heat exchange because it cannot be exchanged quickly due to the material of the heating line on the floor (Petrochemicals-aka XL-PIPE). It is possible to prevent the heat loss of exposed heating pipes by blocking it, and in particular, it is possible to save the heating cost in the place where the charge is caused by the quantity regardless of the heat due to the characteristics of the calorimeter which depends on district heating or centralized heating methods. will be.

This method allows the SMA sensor to exchange heat directly with the water temperature quickly and accurately according to the temperature of the heating water passing through regardless of the room temperature, and changes the force and length to proportionally move the disk to reduce the flow rate and reduce the flow rate. The heat source is stored inside the tank of the boiler by slowing down, so that the heating water temperature can be raised with less heat in a shorter time, and even when the boiler is stopped, the heating water inside the tank cools slowly. It reduces the fuel consumption by preventing unnecessary waste of heat source.

In addition, in the case of using multiple rooms, the room which first reaches the recovery temperature is opened and closed first, so that the pressure rises to the remaining room, thereby providing rapid heating.

The water temperature sensing valve is divided into a body, a driving part, and a connecting part. The structure of the water valve includes a branch part, an up and down sheet, etc., and an inflow path, an outflow path, a cover connection part, a lower cap connection part, and the like. Divided. The drive part consists of elements necessary for actual operation such as stamp, packing, SMA spring, disc, return spring and fixing nut. There are many functions of the drive, but the method applied to this valve is pressure canceling. The pressure canceling method forms an inlet with a double flow path and a double disc that opens and closes two sheets at the same time by opening and closing parts in each flow path to form a single body. This minimizes the effect of pressure on the disk. The pressure canceling method is necessary to control high pressure with small force like SMA. The actual temperature of the SMA spring applied to the water temperature sensing valve is less than 20kgf / ㎠ and the net force cannot exceed 3.5kgf / ㎠ after offsetting the force with the return spring. It can be operated without any abnormality under the pressure of cm 2 by the pressure offset method. In addition, remove the key cap on the handle properly, and turn the keycap clockwise to lower the setting temperature and counterclockwise to raise the set temperature to the outside of the handle center. It was configured to be able to rotate operation.

As shown in Figure 1, such a water temperature sensing valve is registered Patent No. 10-0514470 (name of the invention: water temperature sensing automatic thermostat valve) and Patent No. 10-0514469 (name of the invention: water temperature sensing formula Thermostatic valve).

It is true that the registered patent has brought a significant improvement in terms of fuel savings. However, in the registered patent, the operation of the valves is not performed after a certain time as the fluid is accumulated in the lower guide hole 110 while the fluid is flowing. It caused a lot of inconvenience. In addition, the valves are formed at right angles to the ends of the inflow branch 120, and the valve disk 130 has a cylindrical structure, causing water hammering. This water hammering is a phenomenon of water pressure change caused by sudden change of the motion state of the water filled in the pipeline. That is, when the valve suddenly opens, the pressure drops, and when the valve closes suddenly, the velocity energy of the flowing water changes into pressure energy, and the water pressure rises immediately before the valve. Due to this water hammer, water is incompressible and has a large inertia force. Therefore, a sudden pressure change is directly transmitted to the pipe.

The present invention is to facilitate the operation of the valve by providing a structure that can easily remove the residue accumulated in the lower guide hole of the valve, or to prevent the fluid flow into the lower guide hole. In addition, the present invention is to reduce or eliminate the water hammering (water hammering).

The present invention for solving the above problems is the valve body is formed with the inlet inlet for heating hot water, the branching portion for branching the incoming hot water and the outlet body is discharged from the branching portion discharged after joining, branching portion of the valve body A valve disk for opening and closing, a valve stem coupled to the branch opening / closing mechanism and axially interlockable, an upper stem guider coupled to an upper portion of the valve body, and a lower portion coupled to a lower portion of the valve body. A stem guider, an SMA spring supported by the upper stem guider and an elastic force acting inside the body, a return spring supported by the lower stem guider and an elastic force acting inside the body, coupled with the upper stem guider and a valve stem The upper cap to protect the lower stem guider and the lower stem to protect the valve stem In the knowledge can ongam automatic flow control valve,

It is provided on the lower side of the lower cap, characterized in that it further comprises a cap and a hole to penetrate the hole therein.

In addition, the branch of the valve body of the present invention is characterized in that a gentle round (round) is formed at the front end.

In addition, the valve disk of the present invention is similar to a janggu shape in which the middle portion is concave, characterized in that the lower portion has a hemispherical cap shape protruding outward.

Yet another embodiment of the present invention provides an inlet for heating hot water, a branch for branching incoming hot water, and a valve body having an outlet discharged from the branch and discharged after merging; Branch opening and closing mechanism for opening and closing the branch of the valve body; A valve stem coupled to the branch opening / closing mechanism and interlockable in an axial direction; A first stem guider which guides the axial movement of the valve stem and is fastened to one side of the valve body; A return spring seated on the first stem guider and the valve stem and elastically installed; A second stem guider which guides the axial movement of the valve stem and is fastened to the other side of the valve body; An SMA spring seated on the second stem guider and the valve stem and elastically installed; Characterized in that it comprises a.

In addition, the branch opening and closing mechanism of the present invention is characterized in that the valve disk (valve disk).

In addition, the present invention further comprises a first cap coupled to the first stem guider and protecting the valve stem, and a second cap coupled to the second stem guider and protecting the valve stem. It is characterized by including.

In addition, the second cap of the present invention is characterized in that the outer periphery is provided with a hole (hole) penetrating the inside, and further comprises a hole cap (hole cap) for blocking the hole.

In addition, the flow regulating valve of the present invention is provided between the valve stem (valve stem) and the first stem guider, the manual stem guider is provided with a screw thread on its outer peripheral surface to manually axially move the valve stem It characterized in that it further comprises.

In addition, the branch of the valve body of the present invention is characterized in that a gentle round (round) is formed at the front end.

In addition, the valve disk of the present invention is similar to a janggu shape in which the middle portion is concave, characterized in that the lower portion has a hemispherical cap shape protruding outward.

Hereinafter, with reference to the accompanying drawings will be described in detail.

2 is a cross-sectional view of the water temperature sensing automatic flow control valve according to the present invention, Figure 3 is another cross-sectional view of the water temperature sensing automatic flow control valve according to the present invention.

According to the present invention, the valve body 10 having the inlet 11 through which the heated hot water flows in, the branched portion 12 branching the introduced hot water, and the outlet 13 discharged from the branched portion 12 and discharged after confluence are formed. ), A valve disk 20 for opening and closing the branch 12 of the valve body 10, a valve stem 30 coupled to the valve disk 20 and axially interlocked with the valve disk 20, and The upper stem guider 40 is fastened to the upper portion of the valve body 10, the lower stem guider 50 fastened to the lower portion of the valve body 10, and the upper stem guider 40 is supported by the inner side of the body. The elastic force acts by the SMA spring 60, the lower stem guider 50, the return spring 70, the elastic force acts on the inside of the body 10, the upper stem guider 40 is fastened to the valve stem An upper cap 80 to protect the 30, the lower stem guider 50 is engaged with the valve Be composed of the lower cap 90 to protect the system 30 according to the knowledge ongam automatic flow control valve,

It is provided on the lower side of the lower cap 90, characterized in that it further comprises a hole 91 penetrating the inside and a cap 91 that can block the hole.

That is, as shown in the enlarged view a of FIG. 2, a hole 91 penetrating the inside is formed at one side of the lower cap 90, and further, a cap 92 capable of sealing the hole 91 is further provided. do. Alternatively, as shown in the enlarged view b of FIG. 2, the screw hole 93 may be formed and then sealed with the screw 94. Due to such a configuration, when the dregs of the fluid accumulate in the lower guide hole 95 and cause a malfunction of the valve, the cap 92 or the screw 94 may be opened to extract the dregs.

As shown in FIG. 3, the branched portion 12 of the valve body 10 of the present invention is characterized in that a gentle round is formed at its tip portion 14. In addition, the valve disk 20 of the present invention is similar to the shape of the janggu (janggu) in which the middle portion is concave, characterized in that the lower portion has a hemispherical cap shape protruding outward.

That is, as shown in Figure 3 in the branch portion 12 of the inlet side of the fluid to form a gentle round (round) on the front end portion (14) can reduce the pressure difference generated when opening and closing the valve This may help alleviate water hammering. In addition, by forming the shape of the valve disk 20 in the long gear type, it is possible to reduce or eliminate the formation of turbulence or vortex by smoothly forming the flow path of the fluid flowing to the outlet side.

Figure 3 is another cross-sectional view of the water temperature sensing automatic flow control valve according to the invention, Figure 4 is a cross-sectional view showing another water temperature sensing automatic flow control valve according to the invention, Figure 5 is a third according to the present invention Is a cross-sectional view of a water temperature sensing automatic flow control valve. In addition, Figure 6 is a cross-sectional view showing a fourth water temperature sensing automatic flow control valve according to the present invention, Figure 7 is a partial perspective view showing a water temperature sensing automatic flow control valve according to the present invention.

In another exemplary embodiment of the present invention, as shown in FIG. 4, an inlet 11 through which heating hot water is introduced, a branching part 12 branching incoming hot water, and an outlet 13 discharged from the branching part 12 and discharged after confluence are discharged. Valve body (10a) is formed; Branch opening and closing mechanism 20 for opening and closing the branch 12 of the valve body (10a); A valve stem 30 coupled to the branch opening / closing mechanism 20 and interlockable in an axial direction; A first stem guider 40a which guides the axial movement of the valve stem 30 and is fastened to one side of the valve body; A return spring (70) seated on the first stem guider (40a) and the valve stem (30) to be elastically installed; A second stem guider 50a which guides the axial movement of the valve stem 30 and is fastened to the other side of the valve body 10a; An SMA spring (SMA spring) 60 mounted on the second stem guider 50a and the valve stem 30 to be elastically installed; Characterized in that it comprises a.

That is, as shown in FIG. A thread 11 is formed inside or outside the body 10a on the valve body 10a, and the thread 11 is fastened with the stem guiders 40a and 50a and piping (not shown) to be described later. To facilitate. In addition, the inside of the body 10a is formed with an inlet 11, a branch 12, and an outlet 13, and the branch 12 has a structure in which the branch opening and closing mechanism 20 can be moved on the upper and lower surfaces. It is. When the branch opening / closing mechanism 20 is opened or closed by forming two flow paths having the branching portion 12, the same inlet pressure is applied to the upper and lower ends of the branch opening / closing mechanism 20 under any pressure change. The valve can be controlled regardless.

In the case of the valve stem 30, threads (not shown) are provided at both sides, and the upper threads fasten a nut 31 capable of supporting the return spring 70, and a lower thread (not shown) is an SMA spring. It is used to fasten the nut 32 which can support 60. In addition, the branch opening and closing mechanism or valve disc 20 may be integrally formed at the central portion of the valve stem 30, or a separate valve disc 20 may be manufactured and fastened to the valve stem 30. .

The first stem guider 40a and the second stem guider 50a are fastened to both sides of the body 10a and seat the return spring 70 and the SMA spring 60 therein, respectively, and the valve stem 30 It guides the axial up and down movement of). The rubber rings 41 and 51 are provided at the contact portions between the first stem guider 40a and the second stem guider 50a and the valve stem 30, respectively, so that the fluid flowing into the body 10a flows out. It is preferable to prevent that.

In addition, the branch opening and closing mechanism of the present invention is characterized in that the valve disk (valve disk) (20). The valve disk 20 preferably has a frusto-conical shape in which the upper portion is cut off at the contact surface 22 with the body 10a forming the branch 12. In addition, it is preferable to further include a rubber ring 21 on the circumference of the upper portion of the valve disk 20 to prevent the fluid from flowing to the outlet side when the valve is closed.

In addition, the present invention is coupled to the first stem guider (40a) and the first cap (not shown) and the second stem guider (50a) to protect the valve stem 30 and the valve stem ( 30) The second cap (90a) to protect the characterized in that it further comprises.

The first cap (not shown) and the second cap 90a may be fastened to the first stem guider 40a and the second stem guider 50a, respectively, which may prevent foreign substances from entering. have.

As shown in FIG. 5, the second cap 90a of the present invention includes a hole 91 that penetrates the inside of the second cap 90a, and further includes a hole cap 92 that blocks the hole. Characterized in that it is provided.

The rubber rings 41 and 51 provided in the first and second stem guiders 40a and 50a may prevent the fluid from flowing out of the body 10a. It is preferable to further include a hole 91 and a hole cap 92 on the bottom surface of the two caps 90a. As described above, the hole may be provided with a thread, and correspondingly, the hole cap may be provided in the form of a screw.

In addition, the flow control valve of the present invention is provided between the valve stem (valve stem) 30 and the first stem guider (40a), a spiral thread is provided on the outer peripheral surface of the valve stem (30) It characterized in that it further comprises a manual stem guider (40b) capable of manually axial movement.

As shown in FIGS. 5 and 7, the manual stem guider 40b has a spiral in the form of a spiral on its outer circumferential surface, and is provided on an upper portion of the first cap in contact with the first cap (not shown). By turning the handle 42, the axial movement of the valve disk 20 can be made manually.

6, the branch portion 12 of the valve body 10a of the present invention is characterized in that a gentle round is formed at the tip portion 14 thereof. In addition, the valve disk 20 of the present invention is similar to the shape of the janggu (janggu) in which the middle portion is concave, characterized in that the lower portion has a hemispherical cap shape protruding outward. That is, to form a round (round) on the front end portion 14 of the branch 12, and having the shape of the valve disc 20 in the shape of a janggu (janggu) as described above, which is a water hammer phenomenon ( This is to prevent water hammering.

The present invention having the above structure can easily remove the residue accumulated in the lower guide hole of the valve, by providing a structure to prevent the fluid from flowing into the lower guide hole to smooth the operation of the valve to provide a long life It could be maintained. In addition, the present invention has the effect of reducing or eliminating the water hammering (water hammering).

Claims (10)

A valve body having an inlet for heating hot water introduced therein, a branch for branching the incoming hot water, and an outlet for discharged from the branch and discharged after joining, a valve disk for opening and closing the branch of the valve body, A valve stem coupled to the valve disc and interlockable in an axial direction, an upper stem guider coupled to an upper portion of the valve body, a lower stem guider coupled to a lower portion of the valve body, and supported by the upper stem guider. SMA springs with elastic force acting on the inner side, return stems supported by the lower stem guider and elastic force acting on the inner side of the body, the upper cap guided with the upper stem guider to protect the valve stem, and the lower stem guider In the water temperature sensing automatic flow control valve consisting of a lower cap to protect the valve stem, A water temperature sensing automatic flow control valve is provided on one side of the lower cap, and further comprising a cap penetrating the inside and the cap to block the hole. The method of claim 1, The branch portion of the valve body is a water temperature sensing automatic flow control valve, characterized in that a gentle round (round) is formed at the front end. The method according to claim 1 or 2, The valve disc is similar to a janggu shape in which the middle portion is concave, the water temperature sensing automatic flow control valve, characterized in that the lower portion has a hemispherical cap shape protruding outward. A valve body having an inlet for introducing heated hot water, a branch for branching incoming hot water, and an outlet for being discharged from the branch and discharged after joining; Branch opening and closing mechanism for opening and closing the branch of the valve body; A valve stem coupled to the branch opening / closing mechanism and interlockable in an axial direction; A first stem guider which guides the axial movement of the valve stem and is fastened to one side of the valve body; A return spring seated on the first stem guider and the valve stem and elastically installed; A second stem guider which guides the axial movement of the valve stem and is fastened to the other side of the valve body; An SMA spring seated on the second stem guider and the valve stem and elastically installed; Water temperature sensing automatic flow control valve comprising a. The method of claim 4, wherein The branch opening and closing mechanism is a water temperature sensing automatic flow control valve, characterized in that the valve disk (valve disk). The method of claim 5, wherein And a first cap fastened to the first stem guider and protecting the valve stem, and a second cap fastened to the second stem guider and protecting the valve stem. Water temperature sensing automatic flow control valve. The method of claim 6, The second cap is provided with a hole (hole) that penetrates the inside on the outer circumferential surface, the water temperature sensing automatic flow control valve, characterized in that the hole is further provided with a hole (hole cap) for blocking the hole. The method of claim 7, wherein The flow control valve is provided between the valve stem (valve stem) and the first stem guider, the outer peripheral surface is provided with a thread is further provided with a manual stem guider for manually axial movement of the valve stem Water temperature sensing automatic flow regulating valve. The method according to any one of claims 4 to 8, The branch portion of the valve body is a water temperature sensing automatic flow control valve, characterized in that a gentle round (round) is formed at the front end. The method of claim 9, The valve disc is similar to a janggu shape in which the middle portion is concave, the water temperature sensing automatic flow control valve, characterized in that the lower portion has a hemispherical cap shape protruding outward.

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