KR100932954B1 - Heating possibility redemption automatic shut down valve - Google Patents

Abstract

PURPOSE: An automatic hot water returning blocking valve is provided to prevent malfunction and inoperable by foreign material or the corrosion. CONSTITUTION: An automatic hot water returning blocking valve comprises a valve body, an inflow stopping member, an opening and closing member(130) and an elastic action part. The valve body has a water inlet, a water outlet(114), a through hole, a moving hole and a spring hole(117). The inflow stopping member is located in the inner circumferences of the moving hole and the through hole and is separated from the spring hole. The opening and closing member is inserted in both ends of the through hole and the moving hole and moves up and down.

Description

Heating water return shutoff valve {Heating possibility redemption automatic shut down valve}

The present invention relates to a heating water return automatic shutoff valve which serves to block the return of water automatically when the return temperature of the heating water returned to the hot water boiler is higher than the proper return temperature in hot water heating. More specifically, the present invention relates to an improved heating water return shut-off valve that faithfully plays a role of blocking the heating water return, while preventing malfunctions and improving the service life.

In general, in the hot water heating, a heating system in which the heating water (also called 'heating hot water') supplied from the hot water boiler is returned to the hot water boiler through a heating pipe is mainly used. In order to improve heating efficiency in such hot water heating, When the temperature of the heating water returned to the boiler (also referred to as 'heating return') is above the proper return temperature, a system for blocking the return of the water is automatically utilized.

For the sake of understanding, the heating hot water of the hot water boiler is distributed to each indoor floor (or room floor) through the heating hot water distributor, where the heating hot water temperature is usually 60-70 ° C when the temperature is 22-25 ° C. Temperature (hereinafter referred to as 'heating water proper supply temperature').

In addition, the temperature of the heating return water returned to the hot water boiler after passing through the heating pipe is typically returned as a temperature of 45-50 ° C. (hereinafter, also referred to as 'heating water proper return temperature').

However, due to various factors such as length of the heating pipe or indoor environmental conditions, the heating energy returned to the hot water boiler cannot be returned to the proper return temperature due to various factors such as heating temperature. Frequent cases of return have occurred.

Therefore, in the case of returning to a temperature higher than the proper return temperature as described above, since the heated hot water heat energy in the heating pipe is not properly dissipated, it is returned to the state, resulting in waste of energy and deterioration in heating efficiency, thereby causing an uneconomic problem. Is caused.

Therefore, if the water is returned to a temperature higher than the proper return temperature of the heating water, it detects this and temporarily blocks the return, so that the heat energy of the heating hot water in the heating pipe is reached to reach a state where the temperature is lowered to the appropriate return temperature, thereby improving heating efficiency and economical efficiency. Phosphorus heating is planned.

In addition, a valve using a resilient member made of a shape memory alloy that detects a return temperature and temporarily stops the return of water when it is returned to a temperature higher than a proper return temperature of heating water is used.

However, in the related art, since the elastic member made of the shape memory alloy is configured to operate inside the return passage through which the heating water flows, the elastic member malfunctions or becomes inoperable.

In detail, the heating water should be free from foreign substances, or foreign substances may frequently enter due to carelessness during heating work or replacement of the heating water. In this case, foreign matters are caught in the resilient member in the process of circulating the foreign matter with the heating water. This causes the elastic member to be inoperable or inoperable.

In order to improve the heating efficiency, when heating water is replaced with a new one, the heating water is first discharged from the heating pipe and then replaced with a new one. When all the heating water is discharged, the heating water passes including the inside of the heating pipe. In the part which is naturally exposed to the air, the elastic member made of the shape memory alloy also comes into contact with the air, and corrosion (rust) occurs rapidly.

In addition, even though the heating water is not replaced, water is used as the heating water and because there are minute bubbles in the water, elastic members made of shape memory alloys having iron components to maintain strength gradually become corroded with long-term use. Will be.

Therefore, when the elastic member is corroded, the lump of rust sticks to the surface, so that the elastic movement is not properly performed, thereby failing to operate properly, causing malfunctions or becoming inoperable.

Therefore, as a valve that detects this when the water is returned to a temperature higher than the proper return temperature of the heating water, and temporarily stops the return of water, there is a problem of shortening the lifespan due to failure to properly perform a function, and the heating efficiency is lowered and it is not economical. It was caused by a problem.

In particular, the heating efficiency is reduced only when the valve which temporarily shuts off the return is inoperable in the open state, but the heating efficiency is reduced, but when the return is disabled, the return to the hot water boiler is reduced. Since it is impossible to heat, or the heating water pressure rises above the proper pressure, it is caused by a serious problem that the vulnerable parts of the hot water boiler or the heating pipe burst.

It is an object of the present invention to provide an improved heating water return shut-off valve that can realize a reliable performance without a malfunction permanently as a valve that senses the heating return temperature to temporarily shut off.

Another object of the present invention is to provide a heating water return shut-off valve that does not damage the operating parts to have the opening and closing function even when the heating water is replaced.

Another object of the present invention is to provide a heating water return shut-off valve that is increased in life and greatly improved quality and product reliability.

The present invention includes a valve body having a water inlet and a water outlet, each having a moving hole at a lower portion of the diesel passage and a lower portion of the inlet and having a spring hole between the diesel passage and the moving hole; An inlet blocking means provided on the inner circumferential surface of the diesel passage and the moving hole to be isolated from the spring hole; Both ends are respectively inserted into the light passage and the moving hole to be reciprocated in the longitudinal direction, and have an opening / closing member having a return passage communicating with the water outlet therein. An opening and closing member having a plurality of circulation holes for forming a clogging portion to open and close the through portion, and having a gas passage and a return passage therethrough; The outer circumferential edge of the opening and closing member is provided with a resilient action end positioned in a spring hole, and a corresponding coil spring for resiliency acting in the direction of the outlet port is installed under the resilient action end and receives heat energy of heating return on the resilient action end. It characterized in that it comprises a resilient action portion having a shape memory alloy spring is installed so that the elasticity is expanded to act in the inlet direction.

The valve body is equally divided into an upper body having a screw on the outer circumferential surface and a lower body having a protrusion on the outer circumferential surface so that a lock nut having a pressure jaw that presses the protrusion is fastened to the thread and an O-ring between the upper body and the lower body. This is another feature that is made to be combined to be published.

The inlet blocking means is characterized in that the other O-ring.

The elasticity of the corresponding coil spring is characterized in that the elasticity of the shape memory alloy spring in the contracted state and greater than the elasticity of the shape memory alloy spring in the expanded state.

 The shape memory alloy spring is characterized in that the expansion is started at 45 ℃ and the contraction is completed at 40 ℃ is another feature.

The present invention allows the corresponding coil spring and the shape memory alloy spring to have an opening / closing function to be operated without any contact with the heating water so that there is no malfunction or inoperability due to foreign matters or corrosion, and thus the semi-permanent heating performance is promoted. It is effective to provide a water return valve.

And since the moving parts that have the opening / closing function even when the heating water is replaced are not damaged, such as corrosion, they can be used semi-permanently, thereby increasing the service life and improving the quality and product reliability.

The present invention will be described in more detail based on the attached preferred embodiments as follows.

1 is a view showing a state of use of the shut-off valve in accordance with the present invention, Figures 2 and 3 shows an exploded perspective view and a combined cross-sectional view of the shut-off valve.

Referring to FIG. 1, the heating hot water heated in the hot water boiler 10 is distributed and supplied to the heating pipes 30 embedded in the respective room floors through the heating hot water distributor 20, respectively, and then the heating and water returning machine 40. The heating system is returned to the hot water boiler 10 again) and the return valve block 100 of the present invention is connected to the heating return machine 40 to automatically open and close according to the temperature of the returned heating return. will be.

2 and 3, the return vehicle shutoff valve 100 of the present invention is provided with a valve body (110).

The valve body 110 is equally divided into an upper body 111 having a threaded portion 111a on the outer circumferential surface and a lower body 111 'having a protrusion wheel 111b to assemble the internal parts.

Then, the lock nut 112 having the pressure jaw portion 111c pressurizing the wheel wheel portion 111b is coupled to the screw portion 111a. At this time, the O-ring 111d is coupled between the upper and lower body bodies 111 and 111 'so that the airtightness is maintained.

Since the valve body 110 is divided into upper and lower body bodies 111 and 111 'and fastened to the lock nut 112, it is to assemble the components therein. May be

4 shows a variant embodiment in which the heating hose h is connected to the lower body 111 ', and includes a hose connecting portion 111e in the lower body 111' of the inlet 113. It shows that the heating hose h is fitted and the heating hose h is fixed by the hose fixing nut 118 fastened to the lower body 111 '.

Therefore, the present invention is provided with the inlet port 113 and the outlet port 114 in the upper and lower parts of the valve body (110). Since the screw portions (unsigned) provided at the inlet and outlet ports 113 and 114 are for nipple connection or piping, in some cases, a fastening structure other than the screw portion may be adopted.

Therefore, the inlet port 113 is provided with a passage hole 115 in the longitudinal direction, and the outlet port 114 is configured to be provided with a moving hole 116, respectively.

In addition, it is configured to have a long spring ball 117 between the diesel passage 115 and the moving hole 116.

The upper and lower body bodies 111 and 111 'constituting the valve body 110 are preferably configured to be able to assemble the internal parts by being equally divided at the portions having the spring holes 117.

Therefore, the present invention is configured such that each of the inlet blocking means 120 and 120 ′ is separated from the spring hole 117 on the inner circumferential surface of the diesel passage 115 and the moving hole 116.

The inlet blocking means (120, 120 ') is to have a function to prevent any material from flowing into the spring hole (117). O-ring is preferably employed as the inflow blocking means 120, 120 'for cost reduction and the like. However, in some cases, it may be configured as a different structure.

And the present invention is provided with a long opening and closing member 130.

Both ends of the opening and closing member 130 are inserted into the diesel passage 115 and the moving hole 116 so as to be reciprocated in the longitudinal direction.

In addition, the opening and closing member 130 is provided with a return passage 131 communicating with the water exit hole 114 therein.

In addition, the tip of the opening and closing member 130 to be inserted into the through hole 115 is provided with a curved protrusion wheel 132 to form a clogging portion 132a for opening and closing the inlet 113 in the lower side. Therefore, since the blockage portion 132a is to block the inlet port 113, the blockage portion 132a has a diameter larger than that of the inlet port 113.

In addition, the outer periphery of the upper portion of the clogging portion (132a) is configured to include a plurality of circulation holes (132b) through the through-hole 115 and the return passage (131). Although the circulation holes 132b are formed in plural, it is preferable that three are formed at equal intervals on the outer periphery of the curved protrusion wheel part 132.

On the other hand, the present invention configures the elastic action portion 140 in the spring ball 117 portion.

The elastic action part 140 is configured to protrude a resilient action end 133 located in the spring hole 117 on the outer circumference of the opening and closing member 130, the water outlet 114 in the lower side of the resilient action end 133. Corresponding coil spring 141 to be elastically acted in the () direction is configured to be installed. The corresponding coil spring 141 is preferably made of a stainless material without corrosion.

Accordingly, the shape memory alloy spring 142 is installed above the elastic action end 133 so that the elasticity that is expanded by receiving the heat energy of the heating return is acted toward the inlet 113.

The elasticity of the corresponding coil spring 141 is larger than the elasticity of the shape memory alloy spring 142 in the contracted state and weaker than the elasticity of the shape memory alloy spring 142 in the expanded state.

In addition, the shape memory alloy spring 142 is adopted that the expansion action is started at 45 ℃ and the contraction action is completed at 40 ℃.

Therefore, the water return valve 100 of the present invention, as shown in Figure 1 because the inlet port 113 is connected to the heating pipe 30 and the outlet port 114 is connected to the heating receiver 40 because the inlet port Referring to (113) the operation of the present invention with reference to Figures 5 and 6 shown as a schematic operation as the heating water is introduced into the heating water is returned to the hot water boiler 10 through the outlet 114 as follows. .

5 shows a state in which the heating return passing through the return shutoff valve 100 passes at 45 ° C. or lower (a suitable return temperature).

In this state, since the shape memory alloy spring 142 is contracted, the opening / closing member 130 is moved toward the outlet port 114 by the elasticity of the corresponding coil spring 141.

Therefore, as the curved protrusion wheel part 132 moves up, the blocking part 132a is also moved up so that the inlet 113 is opened.

Therefore, the heating return flowed into the inlet 113 may be introduced into the diesel passage 115 and the heating return flowed into the diesel passage 115 of the opening / closing member 130 through the plurality of circulation holes 132b. The water flows through the return passage 131 to the water outlet 114 and returns to the hot water boiler 10.

However, when the temperature of the heating return passing through the return passage 131 passes over 45 ° C., which is a temperature higher than an appropriate return temperature, the thermal energy is transferred to the shape memory alloy spring 142 through the opening / closing member 130. The alloy spring 142 is inflated.

Therefore, the opening and closing member 130 is moved downward as the elasticity of the shape memory alloy spring 142 is expanded to act on the elastic action end 133, so that the blocked portion of the curved wheel part 132 as shown in FIG. 132a shields the inlet 113.

Therefore, since the inlet 113 is shielded, the return water to the hot water boiler 10 is blocked, thereby increasing the heating efficiency of the room as the heating hot water stays in the heating pipe 30.

In addition, the heating water present in the water return passage 131 in the state in which the inlet 113 is shielded also loses heat energy to the outside, so that the temperature of the heating water gradually decreases to a temperature lower than the proper water return temperature.

Therefore, when the heating water temperature in the return passage 131 is below the appropriate return temperature (45 ° C), the shape memory alloy spring 142 is gradually contracted, and thereby the elasticity of the corresponding coil spring 141 that was compressed As the actuation end 133 acts on the opening and closing member 130 is gradually moved toward the water outlet 114 again and 40 ℃ when the contraction action is completed by closing the opening and closing member 130 and 5 and In the same manner, the inlet 113 is opened.

Therefore, as the curved protrusion wheel part 132 moves up, the blockage part 132a is also moved up so that the inlet port 113 is opened so that the heating return flows into the inlet port 113 through the gas passage 115. Through a plurality of circulation holes (132b) through the return path 131 is discharged to the outlet 114 is to be returned to the hot water boiler (10).

And whenever the temperature difference of the heating return passing through the return path 131 as described above is to temporarily stop the return to the hot water boiler 10 and to automatically return to the action.

Then, when the heating return passes through the return blocking valve 100, the inlet port 113, the opening hole 115, and the circulation hole 132b, and the outlet port 114 of the opening and closing member 130 through the return channel 131. At the same time, since the spring water 117 does not penetrate the heating water by the inlet blocking means 120 and 120 ', the corresponding coil spring 141 and the shape memory alloy spring 142 are not in contact with the heating water at all. It works in the state.

Therefore, the corresponding coil spring 141 and the shape memory alloy spring 142 are not only protected from being caught by foreign substances mixed in the heating water, but also operate well by preventing corrosion from occurring and thereby malfunction or inoperability. It can be prevented in advance.

Therefore, the return shut-off valve 100 is not malfunction or inoperable, so that the product reliability is greatly improved and the service life is increased along with the quality improvement.

In addition, the heating shutoff valve 100 that detects this when the water is returned to a temperature higher than the proper return temperature to temporarily shut off the return as a function of the original function and role faithfully without malfunction or malfunction without heating The efficiency is improved and economical heating can be achieved.

In addition, even when the heating water is replaced, the elastic action unit 140 does not have any effect, so that the corresponding coil spring 141 and the shape memory alloy spring 142 are not corroded.

In addition, if the water is not able to operate in the state where the water was previously blocked, the water can not be returned to the hot water boiler. This bursting problem is completely solved so that it does not occur at all.

Although the present invention has been described by way of one embodiment, the present invention is not limited thereto and may be modified in various forms by those of ordinary skill in the art to which the present invention pertains. It is self-evident that it should be widely protected unless it deviates greatly.

1 is a hot water heating piping diagram showing the installation of the return valve of the invention,

Figure 2 is a perspective view of the entire separation of the return vehicle shutoff valve according to the invention,

Figure 3 is a longitudinal cross-sectional view of the return vehicle shutoff valve according to the present invention,

Figure 4 is a partial cross-sectional view of one modified embodiment of the inlet portion according to the present invention,

5 and 6 is a schematic operation explanatory diagram of the recirculation shut-off valve of the present invention,

Explanation of symbols on the main parts of the drawings

100: return car shutoff valve 110: valve body

113: inlet 114: outlet

115: diesel ball 116: moving ball

117: spring ball 120,120 ': inlet blocking means

130: opening and closing member 131: return passage

132: curved protrusion wheel 132a: blockage

132b: Circulation hole 133: Elastic action end

140: elasticity portion 141: counter coil spring

142: shape memory alloy spring

Claims (5)

A valve body having a water inlet and an outlet, respectively, having a gas passage and a movement hole in the lower portion of the water outlet and having a spring hole between the gas passage and the movement hole; An inlet blocking means provided on the inner circumferential surface of the diesel passage and the moving hole to be isolated from the spring hole; Both ends are respectively inserted into the light passage and the moving hole to be reciprocated in the longitudinal direction, and have an opening / closing member having a return passage communicating with the water outlet therein. An opening and closing member having a plurality of circulation holes for forming a clogging portion to open and close the through portion, and having a gas passage and a return passage therethrough; The outer periphery of the opening and closing member is provided with a resilient action end positioned in the spring hole and a corresponding coil spring for resiliency acting in the direction of the outlet port is installed below the resilient action end, and receives the heat energy of heating return on the resilient action end. The heating water return shut-off valve, characterized in that it comprises an elastic action portion having a shape memory alloy spring is installed so that the elasticity is expanded in the direction of the inlet. 2. The valve body of claim 1, wherein the valve body is equally divided into an upper body having a threaded portion and a lower body having a wheeled portion on an outer circumferential surface thereof so that the lock nut having a pressure jaw that presses the wheeled portion is fastened to the screwed portion. Heating water return shut-off valve, characterized in that the O-ring is coupled between the lower body to be placed. The heating water return shut-off valve according to claim 1, wherein the inlet blocking means is an O-ring. 2. The heating water return shut-off valve according to claim 1, wherein the elasticity of the corresponding coil spring is larger than the elasticity of the shape memory alloy spring in the contracted state and weaker than the elasticity of the shape memory alloy spring in the expanded state. The heating water return shut-off valve according to claim 1, wherein the shape memory alloy spring is adapted to start expansion at 45 ° C and complete contraction at 40 ° C.

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