KR100794567B1 - A balancing valve for hot water distributor - Google Patents

Abstract

A balancing valve for a hot water distributor is provided to prevent waste of hot water by functioning as a differential pressure valve, to reduce manufacturing cost by simplifying structure of the hot water distributor, and to do a function of a stop valve by operating an opening control screw. A balancing valve for a hot water distributor comprises a main body(110) including an inlet part(110a), an outlet part(110b), and a combining part(110c) formed integrally, and an opening control scale with a regular interval on a top periphery of the combining part; and an opening control element(120) attached to an inside of the combining part, to control a flow amount of hot water flowing inside a hot water path in the main body. The combining part further comprises the followings: an opening control screw(121); an O-ring(122) sealing the opening control screw and an inner periphery of the main body; a disk(123) opening and closing a flow exit formed in the hot water path in the main body by sliding along an insert groove in the opening control screw; a guide bar(125) inserted to the disk, to prevent vibration of the disk of sliding movement; and an elastic element(124) for load control inserted between the opening control screw and the disk, to control a load by elastic compression when an overload of a flow amount through the flow exit occurs.

Description

Balancing Valve For Hot Water Distributor

Figure 1a is a schematic diagram showing the configuration of the hot water distributor for heating according to a conventional embodiment;

Figure 1b is a graph showing the change in the differential pressure on the pipe according to the opening and closing of the drain when the installation and non-installation of the conventional bypass pipe and the differential pressure valve;

Figure 2 is a perspective view of the coupling of the balancing valve for the hot water distributor according to an embodiment of the present invention;

3 is an exploded perspective view of FIG. 2;

4 is an exploded cross-sectional perspective view of FIG. 3;

5 is a cross-sectional perspective view showing the internal configuration of the balancing valve for hot water distributor according to an embodiment of the present invention;

6A is a state diagram of a balancing valve in a constant hydraulic pressure state according to an embodiment of the present invention;

6B is a state diagram of a balancing valve in an excessive hydraulic pressure state according to an embodiment of the present invention; And

8 is an experimental view showing the effect of the differential pressure relief by the balancing valve for hot water distributor according to an embodiment of the present invention.

※ Explanation of symbols for main parts of drawing

100: balancing valve 110 for hot water distributor: main body

110a: inlet 110b: outlet

110c: coupling portion 111: hot water flow path

112: disk engaging jaw 112a: outlet

113: guide engaging groove 120: opening degree adjustment means

121: opening adjustment screw 122: O-ring

123: disc 123a: insert

123b: head 123c: guide coupling groove

124: elastic member for load adjustment 125: guide

210: supply distribution pipe 220: recovery distribution pipe

The present invention relates to a balancing valve for a hot water distributor, and more particularly, in order to prevent damage to the hot water pipe and the boiler due to overload of hot water on the hot water distributor, without installing a separate bypass pipe and a differential pressure valve. The present invention relates to a balancing valve for a hot water distributor having a load control elastic member having a structure capable of preventing overload caused by a closed balancing valve and noise generated by the overload.

In general, a hot water distributor is used to distribute and supply heating water heated from a boiler to various uses, which is composed of a distribution header formed at one side of an inflow portion into which heating water flows and a plurality of branch pipes formed at the distribution header. Each branch pipe constitutes a valve for controlling the flow rate of the heating water.

For example, in the accompanying drawings, Figure 1a is a schematic view showing the configuration of a hot water distributor for heating according to a conventional embodiment, referring to this, the heating hot water distributor 10 is a supply distribution pipe that is supplied with hot water heated from the boiler ( 11), a recovery distribution pipe 12 where the hot water supplied through the supply distribution pipe 11 is heat-exchanged at each use place and is returned to the boiler, and the supply distribution pipe 11 and the recovery distribution pipe 12 ) A plurality of branch pipes (13a, 13b) to be distributed to each use, and a balancing valve 14 for coupling between the supply distribution pipe 11 or the recovery distribution pipe 12 and the branch pipes (13a, 13b) It is configured to include. Here, the balancing valve 14 may be connected between the supply distribution pipe 11 and the branch pipes 13a and 13b, or may be connected between the recovery distribution pipe 12 and the branch pipes 13a and 13b.

When the hot water distributor 10 for heating configured as described above is distributed to the respective branch pipes 13a and 13b through the supply distribution pipe 11 through the supply distribution pipe 11, the hot water to each use place through the branch pipes 13a and 13b. Is supplied, and the supplied hot water is heat exchanged at each place of use, and then is recovered to the recovery distribution pipe 12 through the balancing valve 14 and supplied to the boiler side.

In addition, when the conventional heating hot water distributor 10 locks the balancing valve 14 to block the supply of hot water to a place where it is not used, the pressure is increased by the excessive flow rate supplied to the open balancing valve side. The bypass pipe 15 and the differential pressure valve 16 are installed between the supply distribution pipe 11 and the recovery distribution pipe 12 in order to overcome the problem of noise caused by the overload caused by this.

In the accompanying drawings, Figure 1b is a graph showing the change in the differential pressure on the pipe according to the opening and closing of the drain when the conventional bypass pipe and the differential pressure valve is installed or not, the 'A' line on the graph when the bypass tube and the differential pressure valve is not installed The differential pressure inside the pipe is shown, and the 'B' line indicates the differential pressure inside the pipe when the bypass pipe and the differential pressure valve are installed.

According to the change of the 'A' line on the graph, when the closed numerical aperture of the plural balancing valves 14 is increased, the differential pressure increases rapidly, which may cause a problem on the pipe due to the increase in the differential pressure. If the differential pressure rises above 0.5 kgf / cm 2, it causes serious problems for the boiler itself.

In addition, according to the change of the 'B' line on the graph, when the closed numerical aperture of the plural balancing valves 14 is increased, the differential pressure gradually increases, and when the pressure reaches a predetermined level (differential pressure 0.5kgf / cm2), the differential pressure is constant. It is showing.

That is, when the closed numerical aperture of the balancing valve 14 reaches three, it shows a sudden change in the differential pressure at the point 'C'. The conventional hot water distributor provided with the bypass pipe 15 and the differential pressure valve 16 is as follows. There was a problem.

First, the hot water enters directly from the supply distribution pipe to the recovery distribution pipe by the bypass pipe. The hot water heated by the boiler does not flow to the heating pipe, and thus waste of hot water is generated. There was a problem that the energy consumption is increased by dropping.

Second, the structure of the hot water distributor is complicated by the installation of a separate bypass pipe and the differential pressure valve, and the manufacturing cost of the hot water distributor according to the installation thereof increases, and the installation cost of the heating device itself increases. There was this.

The present invention for solving the above problems has a structure that can prevent the occurrence of overload caused by the closing balancing valve and the noise caused by the overload by only installing the balancing valve itself without the installation of a separate bypass pipe and a differential pressure valve It is an object to provide a balancing valve for a hot water distributor having.

In addition, the balancing valve itself can serve as a differential pressure valve, there is another object to provide a balancing valve for a hot water distributor having a structure that can prevent the boiler thermal efficiency is lowered due to the waste of circulating hot water.

Another object of the present invention is to provide a balancing valve for a hot water distributor, which can simplify the structure of the hot water distributor and reduce the manufacturing cost, thereby reducing the installation cost of the heating device.

The balancing valve for a hot water distributor according to the present invention for achieving the above object is a balancing valve installed in the hot water distributor, the inlet and outlet and the coupling portion are each formed integrally in the vertical direction, the hot water flows inside A main body through which the hot water flow passage is formed; And an opening degree adjusting means coupled to the inside of the coupling part and adjusting a flow rate of the hot water flowing in the hot water flow passage, wherein the opening degree adjusting means adjusts a load when an excessive flow rate flows through the hot water flow passage. It is characterized by including a member.

Preferably, the main body is displayed at regular intervals on the outer top of the coupling portion, the opening degree adjustment scale for adjusting the opening degree of the hot water flow passage through the opening degree adjusting means is formed.

In addition, preferably, the opening degree adjusting means is a screw groove is formed in the upper outer circumference, a ring coupling groove is formed between the screw groove and the lower end, the opening degree adjustment screw is formed therein; An O-ring coupled to the ring coupling groove and sealing between the opening degree adjusting screw and an inner side surface of the main body to prevent the hot water flowing through the hot water flow path from flowing out; A disk coupled to an insertion groove of the opening adjustment screw and opening / closing an outlet formed on the hot water flow path of the main body through a sliding motion on the insertion groove; A guide inserted into and coupled to the other side of the disk to prevent shaking of the disk during sliding of the disk; And a load adjusting elastic member inserted into and coupled between the opening adjustment screw and the disk to adjust the load by elastic stretching when an overload of the flow rate through the outlet is generated.

More preferably, the opening degree adjustment means is inserted and coupled to the outer side of the lower end of the guide, and further includes a disk pinch preventing elastic member to prevent the disk from being caught inside the outlet of the body during the sliding movement of the disk; It is composed.

In addition, more preferably, the opening degree adjustment screw is formed on the top surface of the arrow-shaped display line for guiding the scale mark.

Further, more preferably, the disk is inserted into the insertion groove of the opening adjustment screw; And a head portion extending integrally with the insertion portion, and having a guide coupling groove into which the guide is inserted, the head portion opening and closing the outlet of the main body.

The balancing valve for hot water distributor according to the present invention can be used in place of the conventional bypass pipe and the differential pressure valve to prevent damage to the hot water pipe and the boiler due to the overload of hot water on the hot water distributor, and separate bypass pipe and By installing the balancing valve itself without installing the differential pressure valve, it is possible to prevent the overload caused by the closed balancing valve and the noise caused by the overload.

Hereinafter, with reference to the accompanying drawings will be described in detail for the balancing valve for hot water distributor according to an embodiment of the present invention. Of the accompanying drawings, Figure 2 is a perspective view of the balancing valve for the hot water distributor according to an embodiment of the present invention, Figure 3 is an exploded view of Figure 2, Figure 4 is an exploded cross-sectional perspective view of Figure 3, and Figure 5 Coupling cross-sectional perspective view showing the internal configuration of the balancing valve for hot water distributor according to an embodiment of the present invention.

Referring to FIG. 2, the balancing valve 100 for the hot water distributor according to the present invention includes a main body 110 and an opening degree adjusting means 120 coupled to the inside of the main body 110.

Body (110)

3 to 5, the main body 110 has one side coupled to the supply distribution pipe 210 (see FIG. 7) or the recovery distribution pipe 220 (see FIG. 7), and the other side of the main body 110. (210, see FIG. 7) or to the hot water pipe (not shown) connected to the recovery distribution pipe 220 (see Fig. 7), which is the inlet 110a, outlet 110b and coupling 110c ) Are integrally formed in a vertical direction, respectively, and a hot water flow path 111 through which hot water flows through the inlet 110a and the outlet 110b is formed therein.

In addition, screw threads 110a 'and 110b' are formed at outer peripheries of the inlet 110a and the outlet 110b to be coupled to the recovery distribution pipe or the supply distribution pipe and the hot water pipe. The upper inner circumference of the 110c is formed with a nut portion 110c 'to which the opening degree adjustment screw 121 to be described later is coupled.

Inside the main body 110 is formed disk engaging jaw 112 to control the flow of hot water by the opening degree adjusting means 120 to be described later, the hot water can be discharged by the disk engaging jaw 112 Outlet 112a is formed.

In addition, a guide-to-coupling groove 123c is formed on the bottom surface of the hot water flow passage 111 in the vertical direction of the coupling portion 110c, and the hot water flow passage formed inside the inlet portion 110a and the discharge portion 110b. Each 111 has the same inner diameter.

On the other hand, the opening degree adjustment scale (not shown) for adjusting the opening degree of the hot water flow path 111 through the opening degree adjusting means 120 to be described later is formed on the outer upper end of the coupling portion (110c) of the main body 110, The opening and closing degree of the outlet 112a can be adjusted by the disk 123 which will be described later by an opening degree adjustment scale (not shown).

-Opening adjustment means 120

3 to 5, the opening degree adjusting means 120 is coupled to the coupling portion 110c of the main body 110 to control the flow rate through the opening degree of the outlet 112a to adjust the differential pressure at the same time This includes the opening adjustment screw 121, the O-ring 122, the disk 123, the guide 125 and the elastic member 124 for adjusting the load.

As mentioned in the prior art, the conventional hot water dispenser is provided with a separate bypass pipe (see 15, FIG. 1A) and a differential pressure valve (see FIG. 1A) in the recovery distribution pipe 12 (see FIG. 1A). Bypass pipe 15 (FIG. 1) when the balancing valve (14, FIG. 1A) installed in the recovery distribution pipe 12 (see FIG. 1A) or the supply distribution pipe 11 (see FIG. 1A) of the distributor is shut off. By circulating the hot water through 1a), the damage of the boiler due to the internal pressure generated by the hot water is prevented. In this case, the hot water introduced through the bypass pipe 15 (refer to FIG. 1A) is heated water supplied from the boiler, and has a circulating flow directly flowing back into the boiler through the recovery distribution pipe 12.

However, according to the embodiment of the present invention, through the opening degree adjusting means 120 it is possible to perform the function of the conventional bypass pipe and at the same time the flow rate adjustment function.

The opening degree adjustment screw 121 is coupled to the inside of the coupling portion 110c of the main body 110 to adjust the opening and closing degree of the outlet 112a, the upper portion of the nut portion (110c ') of the coupling portion (110c) A screw groove 121a is formed to engage with the ring groove, and a ring coupling groove 121b is formed below the screw groove 121a, and an insertion portion 123a of the disk 123, which will be described later, is inserted therein and flows therein. The insertion groove 121c which can be formed is formed.

In addition, the opening degree adjustment screw 121 has an arrow-shaped display line 121d is formed on the upper surface for guiding the graduation mark, which is an opening adjustment scale formed on the outer upper end of the coupling portion 110c of the main body 110. Not shown). Therefore, the opening and closing degree of the outlet 112a can be easily confirmed by the opening degree adjustment scale and the opening degree adjustment screw 121 described above.

In addition, the O-ring 122 is coupled to the ring coupling groove 121b to prevent the hot water flowing through the hot water flow passage 111 formed inside the main body 110 from flowing out of the coupling portion 110c. It serves to seal between the opening degree adjustment screw 121 and the inner side of the main body 110.

In addition, the disk 123 is formed integrally with the insertion portion 123a inserted into the insertion groove 121c of the opening adjustment screw 121 and the insertion portion 123a, and a guide 125 to be described later. The guide insert coupling groove 123c into which is inserted is formed therein, and includes a head part 123b that opens and closes the outlet 112a of the main body 110.

The disk 123 is slid in accordance with the adjustment of the opening degree adjustment screw 121 on the insertion groove 121c of the opening adjustment screw 121, opening and closing the outlet 112a by the head portion 123b. Done. The head portion 123b has a tapered shape having a slight inclination from the top to the bottom, and the outer surface of the tapered shape opens and closes the outlet 112a according to the adjustment of the opening degree adjusting screw 121.

The guide 125 is inserted into and coupled to the guide coupling groove 123c formed inside the head 123b of the disk 123, and the vibration of the disk 123 during the sliding movement of the disk 123. This is to prevent, this is to hold the head 123b of the disk 123 serves to hold the disk 123 is shaken by the water pressure of the hot water flowing through the outlet (112a).

In addition, the lower end of the guide 125 is seated in the guide coupling groove 123c formed on the bottom surface of the hot water flow path 111 of the main body 110, the guide coupling during the sliding movement of the disk 123 It is in a fixed state on the groove 123c.

The balancing valve 100 for the hot water dispenser according to the present invention constitutes a load adjusting elastic member 124 between an end of the opening adjustment screw 121 and an upper end of the head 123b of the disk 123.

The load adjusting elastic member 124 is to adjust the load by elastic stretching when the overload of the flow rate through the outlet 112a of the main body 110.

For example, when some balancing valves of the plurality of balancing valves V1 to V4 coupled to the supply distribution pipe 210 (see FIG. 7) or the recovery distribution pipe 220 (see FIG. 7) are closed, the hot water flows toward the open balancing valve side. In this case, an overload may occur due to an increase in the flow rate of the hot water, which causes noise on the pipe due to the flow of the hot water. As mentioned in the prior art, if the internal differential pressure is 0.5kgf / cm 2 or more, it may cause serious problems on the hot water pipes and the boiler, it is necessary to solve it.

Therefore, when the differential pressure by the hot water flowing through the outlet 112a is excessive, the disk 123 by the elastic force of the load adjustment elastic member 124 provided between the opening adjustment screw 121 and the disk 123. ) Is pushed in the flow direction of the hot water so that the outlet 112a is slightly opened, and the internal differential pressure is alleviated as the hot water flows by the opening.

In the embodiment of the present invention, the load adjusting elastic member 124 has a diameter of about 10.3 mm, a height of about 9 mmm, and a spring constant K is about 0.109.

On the other hand, the outer side of the lower end of the guide 125 is further provided with a disk pinch preventing elastic member 126, which is excessively lowered during the sliding movement of the disk 123 to form the disk engaging jaw (112a) This is to prevent the head portion 123b of the disk 123 from being caught inside the 112.

For example, when the head 123b of the disk 123 is excessively lowered, the disk pinch preventing elastic member 126 having an appropriate height is pressed, and the opening degree adjusting screw 121 is released by the pressed elastic force. With a slight repulsive force will fall out of the outlet (112a).

The opening control means 120 may also serve as a stop valve that can prevent the movement of hot water through the operation of the opening adjustment screw 121. That is, when the opening degree adjustment scale is adjusted through the operation of the opening degree adjustment screw 121, since the outlet 112a can be completely blocked, only the configuration of the balancing valve 100 of the present invention does not require a separate stop valve. Can function as a stop valve.

Hereinafter, the operation of the balancing valve for hot water distributor according to the present invention as described above will be described in more detail. 6A is a state diagram of a balancing valve in a constant water pressure state according to an embodiment of the present invention, FIG. 6B is a state diagram of a balancing valve in an excessive water pressure state according to an embodiment of the present invention, and FIG. Exemplary diagram showing a state in which a balancing valve for hot water distributor according to an embodiment of the present invention is used.

First, referring to FIG. 6A, when all of the balancing valves 100 are opened at the time of supply of hot water, a constant hydraulic pressure is applied to the outlet 112a (see FIG. 4) and the head 123b of the disk 123. Hot water flows through the gap therebetween, in which case the differential pressure inside the balancing valve 100 is in a constant state.

6B, the opening degree adjustment screw 121 of the balancing valves V1 to V4 (see FIG. 7) coupled to the supply distribution pipe 210 (see FIG. 7) or the recovery distribution pipe 220 (see FIG. 7). When the part is closed by manipulating the differential pressure, the differential pressure increases proportionally according to the number of the closed balancing valves. In addition, when the balancing valve is closed more, the flow rate moving space is narrowed, and a sudden differential pressure change is made, thereby generating noise in the pipe.

Therefore, in the case of the balancing valve 100 for hot water distributors of the present invention, the balancing valve has a head portion 123b of the disk 123 blocked by the load adjusting elastic member 124. In spite of being closed, the inlet 112a (see FIG. 4) is further opened due to the inflow of hot water, thereby allowing a large amount of hot water to flow, thereby mitigating an excessive load generated on the open balancing valve side. .

In addition, due to the relaxation of the overload it is possible to suppress the noise caused by the sudden change in the differential pressure. In addition, the balancing valve 100 itself according to the present invention can act as a differential pressure valve installed with the bypass pipe in the conventional hot water distributor, it is possible to prevent the boiler thermal efficiency is lowered due to the waste of circulating hot water Will be.

In addition, the structure of the hot water distributor according to the installation of the bypass pipe and the differential pressure valve may be simplified, thereby reducing the manufacturing cost of the hot water distributor, thereby reducing the installation cost of the heating device.

On the other hand, of the accompanying drawings, Figure 8 is an experimental view showing the effect of the differential pressure relief by the balancing valve for hot water distributor according to an embodiment of the present invention.

Referring to the drawings, the 'A' line represents the differential pressure state in the balancing valve for hot water exhaust, the bypass pipe and the differential pressure valve is not installed, and shows a sudden differential pressure increase state when the number of blocking valves is increased.

In addition, the 'D' line represents the differential pressure state in the balancing valve for the hot water distributor with a load control elastic member according to an embodiment of the present invention, if the number of blocking valves is increased, the state of the gentle differential pressure increase without a sudden increase in the differential pressure Is showing.

According to the balancing valve for hot water distributor according to the present invention as described above has the following effects.

First, there is an effect of preventing the occurrence of overload caused by the closed balancing valve and the noise caused by the overload by only installing the balancing valve itself without installing a separate bypass pipe and a differential pressure valve.

Second, the balancing valve itself can act as a differential pressure valve, there is an effect that can prevent the boiler thermal efficiency is lowered due to the waste of circulating hot water.

Third, there is an effect that can simplify the structure of the hot water distributor, reduce the manufacturing cost and reduce the installation cost of the heating device.

Fourth, it is possible to completely block the outlet through which the hot water flows through the operation of the opening adjustment screw has the effect that can function as a stop valve.

Claims (6)

delete delete In the balancing valve installed in the hot water distributor, The balancing valve has an inlet, an outlet, and a coupling part integrally formed in a vertical direction, and a hot water flow path through which hot water flows is formed therethrough, and is displayed at a predetermined interval on the outer upper end of the coupling part to open the hot water flow path. A main body having an opening adjustment scale for adjusting the opening; It is configured to include; and coupled to the inside of the coupling portion, the opening degree adjusting means for adjusting the flow rate of the hot water flowing through the hot water flow path, The opening degree adjustment means is a screw groove is formed in the upper outer circumference, a ring coupling groove is formed between the screw groove and the lower end, and the opening degree adjustment screw is formed therein; An O-ring coupled to the ring coupling groove and sealing between the opening degree adjusting screw and an inner side surface of the main body to prevent the hot water flowing through the hot water flow path from flowing out; A disk coupled to an insertion groove of the opening adjustment screw and opening / closing an outlet formed on the hot water flow path of the main body through a sliding motion on the insertion groove; A guide inserted into and coupled to the other side of the disk to prevent shaking of the disk during sliding of the disk; And And a load adjusting elastic member inserted into and coupled between the opening adjustment screw and the disk to adjust the load by elastic expansion and contraction when an overload of the flow rate through the outlet is generated. The method of claim 3, wherein The opening degree adjustment means is inserted and coupled to the outer side of the lower end of the guide, characterized in that it further comprises a disk pinch preventing elastic member to prevent the disk is pinched inside the outlet of the main body during the sliding movement of the disk. Balancing valve for hot water distributor. The method of claim 3, wherein The opening degree adjustment screw is a balancing valve for hot water distributors, characterized in that the arrow-shaped indicator line for guide the graduation mark formed on the top surface. The method of claim 3, wherein The disk is inserted into the insertion groove of the opening adjustment screw; And a head portion extending integrally with the insertion portion, and having a guide coupling groove into which the guide is inserted, the head portion opening and closing the outlet of the main body. .

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