KR100872414B1 - Hot-water circulayion device - Google Patents

Abstract

A hot water circulation device is provided to eliminate the need of a circulation pump and to maintain constant temperature of a mat by continuously supplying hot water from a pumping tank even when a heater is stopped in the steady-state. A heater(20) is mounted on a heating tank(10) and heats the water(12) filled inside the heating tank. A first valve(V1) is mounted on a first water pipe(40) connecting the heating tank and a pumping tank(30). The pumping tank is divided into a first chamber(32) and a second chamber(33) by a diaphragm(31). The inlet of a balloon(35) is mounted on a piping part(34) formed in the center of the diaphragm. A collection tank(50) is arranged on the top of the heating tank and connected with the heating tank by a second water pipe(60). A second valve(V2) is mounted on the second water pipe. A hot water line(80) connected to an outlet(37) of the pumping tank is connected with the collection tank through a mat(85). The hot water in the heating tank circulates the pumping tank, the mat, and the collection tank in order and returns to the heating tank. A controller(90) controls the operation of the heater.

Description

Hot water circulation device {HOT-WATER CIRCULAYION DEVICE}

The present invention relates to a hot water circulation system that can continuously supply hot water to a place of use, such as a mat, a hot pad, and to increase the temperature of the hot water lowered at the place of use and circulate it to the place of use, and more particularly without using a pump. It is possible to circulate the noise, and to completely eliminate the noise caused by the pump, and to continuously supply hot water from the pumping tank even when the operation of the heating device is stopped in the normal state, so that the temperature of the mat can be kept constant at all times. The present invention relates to a hot water circulation device having a simple structure and low risk of failure.

Republic of Korea Patent No.526791 (registered October 31, 2005) is introduced "hot water automatic circulation device".

The hot water automatic circulation device is provided with a supply port and an outlet at the top and bottom, respectively, the boiler for supplying cold water to the supply port and discharge hot water to the discharge port; An electric heater installed horizontally while being in contact with a bottom surface of the inner bottom of the boiler and supplying heat to the inside of the boiler; A water tank connected to a supply port of the boiler and a supply pipe to supply cold water to the boiler; An inlet connected to the outlet and the discharge pipe of the boiler, and a heat exchanger connected to the outlet of the water tank and the circulation pipe to transfer heat to the outside; Each of the supply pipe and the discharge pipe is provided with a supply valve and a discharge valve that is automatically opened and closed by the steam pressure inside the boiler.

However, since the supply valve and the discharge valve are opened and closed by steam pressure, the hot water automatic circulation device has a large operating error of the supply valve and the discharge valve, and it is difficult to control the use temperature of a mat or a hot pad.

Accordingly, an object of the present invention is to circulate hot water without using a pump, to completely eliminate noise caused by the pump, and to continuously supply hot water from the pumping tank even when the operation of the heating device is stopped in a steady state. The temperature of the mat can be kept constant at all times, and the structure is simple to provide a hot water circulation device with a low risk of failure.

Hot water circulation device according to the present invention for achieving the above object is equipped with a heating device in the heating tank, to heat the water filled in the inside of the heating tank, to the first water pipe connecting the heating tank and the pumping tank A first valve is mounted, the pumping tank is divided into a first chamber and a second chamber by a diaphragm, and an inlet of the balloon is mounted in a piping formed at the center of the diaphragm, and the balloon is disposed in the second chamber. And a recovery tank is disposed above the heating tank, and the recovery tank and the heating tank are connected by a second water pipe, and a second valve is mounted on the second water pipe, and the hot water connected to the discharge port of the pumping tank. The line is connected to the recovery tank through the mat, and the hot water of the heating tank is circulated back to the heating tank through the pumping tank, the mat, and the recovery tank in order, and the heating device is operated by the controller. It is characterized in that a control.

Preferably, the heating tank, the pumping tank and the recovery tank are thermally insulated, and the placement height of the heating tank is disposed at a position relatively higher than the placement height of the pumping tank relative to the ground, and the recovery tank is higher than the placement height of the heating tank. The height of the arrangement is characterized in that arranged in a relatively high position.

The heating device is characterized in that the rod-type cartridge electric heater or heat pipe.

When the heating device is a heat pipe, the means for providing heat to the portion disposed outside the heating tank of the heat pipe is characterized in that any one of the heating wire, the flame of the gas burner or the steam of the heat exchanger.

The first valve is any one of a solenoid valve, a pressure valve or a bimetal valve for opening and closing the first water pipe by the temperature of the water stored in the heating tank.

When each of the first valve and the second valve is a solenoid valve, the controller receives a signal from the water level sensing means mounted on the recovery tank, and controls the opening and closing of the second valve, thereby keeping the level of the recovery tank constant. The first temperature sensor mounted on the heating tank or the second temperature sensor mounted on the mat receives a signal to control the operation of the heating device, and receives the signal from the first temperature sensor to open or close the first valve. It is characterized by controlling.

When the first valve is a bimetal valve, the first water pipe includes a discharge pipe connected to a heating tank and an inlet pipe connected to a pumping tank, and the spiral part of the discharge pipe and the spiral part of the inlet pipe are coupled to each other. Inlet pipe is connected, the inlet pipe is formed with a barrier film formed with a valve hole in the center,

The bimetal valve is formed of a bimetal frame and a stopper mounted on a curved portion of the bimetal frame to open and close a valve hole of a blocking membrane, and the top and bottom of the bimetal frame are fixed to the first water pipe.

The pumping tank is characterized in that the spring is arranged in the second chamber, the spring is compressed when the balloon is inflated, thereby assisting the contraction of the balloon when the first valve is closed to shrink the balloon.

The pumping tank is characterized in that the bellows tube of which one end is opened and the other end of which is closed is mounted to the piping of the diaphragm, and the bellows tube is arranged in a contracted state by a spring mounted around the bellows tube.

As described above, the hot water circulating device according to the present invention can circulate hot water without using a pump, so as to completely eliminate noise caused by the pump, and in the pumping tank even when the operation of the heating device is stopped in a normal state. By continuously supplying hot water to the mat, the temperature of the mat can be kept constant at all times, and the structure is simple, so that there is a small risk of failure.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1, the hot water circulation device according to the present invention is equipped with a heating device 20 in the heating tank 10, to heat the water 12 filled in the heating tank 10, the heating tank ( The first valve (V1) is mounted to the first water pipe (40) connecting 10 and the pumping tank (30), the pumping tank (30) by the diaphragm 31 and the first chamber (32) It is divided into two chambers 33, the injection hole of the balloon 35 is mounted to the piping portion 34 formed in the center of the diaphragm 31, the balloon 35 is disposed in the second chamber 33, A recovery tank 50 is disposed above the heating tank 10 so that the recovery tank 50 and the heating tank 10 are connected by a second water pipe 60 to the second water pipe 60. The second valve (V2) is mounted, the hot water line 80 connected to the discharge port 37 of the pumping tank 30 is connected to the recovery tank 50 through the mat 85, the heating tank 10 ) Hot water (12) of the pumping tank (30), the mat (85), and the recovery tank (50) In order to circulate back to the heating tank 10, the operation of the heating device 20 is controlled by the controller (90).

The heating tank 10, the pumping tank 30 and the recovery tank 50 is preferably insulated, and the placement height of the heating tank 10 is relatively higher than the placement height of the pumping tank 30 based on the ground. It is disposed at a high position, and the arrangement height of the recovery tank 50 is disposed at a position relatively higher than the arrangement height of the heating tank 10.

As a result, even when the first valve V1 is closed, water is always filled in the line 80 passing through the pumping tank 30 and the mat 85.

The heating tank 10 is filled with water 12 by a predetermined level, the heating device 20 is disposed in the water, and the space portion 14 is filled with water is not filled therein.

As a result, when water is heated by the heating device 20, heat is transferred to the space portion 14, whereby the pressure in the space portion 14 is increased, and the pressure is increased by the water 12 in the heating tank 10. It acts to push the pumping tank 30 through the first water pipe (40). For example, when the internal pressure of the heating tank 10 at 80 ° C. is increased by about 0.8 kg _f / cm ² than when cold water (18 ° C.) is used.

The heating device 20 may be a rod type cartridge electric heater or heat pipe.

When the heating device 20 is a heat pipe, a means for providing heat to a portion of the heat pipe disposed outside the heating tank 10 includes a heating wire 21 shown in FIG. 2 and a gas burner shown in FIG. 3. Flame of (22) or steam of the heat exchanger (23) shown in FIG.

The first valve V1 may be any one of the bimetal valve 100 that opens and closes the first water pipe by the temperature of the water stored in the solenoid valve, the pressure valve, or the heating tank 10.

When the heat source of the heating device 20 is a heating wire, the solenoid valve may be selected as the first valve V1. When the heat source of the heating device 20 is a flame of a gas burner or steam of a heat exchanger, the first valve may be selected. The pressure valve or the bimetal valve 100 may be selected as (V1).

This means that when the solenoid valve is selected as the first valve V1, the electric power of the heating wire can be used as the operating power of the solenoid valve, and when the heat source of the heating device 20 is the flame of the gas burner or the steam of the heat exchanger, When the pressure valve or the bimetal valve 100 is selected as the valve V1, butane gas, which can be easily used outdoors without a power source, can be used as a heat source of the hot water circulation system according to the present invention.

The second valve V2 may also be either a solenoid valve or a pressure valve.

The solenoid valve and the pressure valve are already known, detailed description of the configuration and operation will be omitted.

Referring back to FIG. 1, when the first valve V1 and the second valve V2 are solenoid valves, the controller 90 is provided from the water level sensing means 55 mounted on the recovery tank 50. By controlling the opening and closing of the second valve V2 by receiving a signal, the level of the recovery tank 50 is always kept constant, and the first temperature sensor 15 or the mat (mounted to the heating tank 20) A signal is input from the second temperature sensor 87 mounted at 85 to control the heating device 20 and the first valve V1.

The water level detecting means 55 may be applied to various types of means for detecting the water level, such as a water level sensor or a floating switch, and may be mounted on the heating tank 55 as well as the recovery tank 50 mentioned above.

When the first valve (V1) and the second valve (V2) is a solenoid valve and a pressure valve, the water level sensing means for detecting the water level of the recovery tank 50 is not required, the controller 90 is a heating tank ( A signal is input from the first temperature sensor 15 mounted on the 20 or the second temperature sensor 87 mounted on the mat 85 to control the operation of the heating device 20 and the first valve V1. .

When the first valve V1 and the second valve V2 are pressure valves, the controller 90 is mounted on the first temperature sensor 15 or the mat 85 mounted on the heating tank 20. The signal is input from the second temperature sensor 87 to control the operation of the heating apparatus 20. At this time, the battery can be used as a power source of the controller, using a butane gas as a heat source of the heating device 20, it is convenient to apply to the outdoor thermal mats for home AC 220 volt can not be used.

6 and 7, when the first valve V1 is a bimetal valve 100, the first water pipe 40 may include a discharge pipe 41 and a pumping tank connected to the heating tank 10. It consists of an inlet pipe 44 connected to 30, the spiral portion 42 of the discharge pipe 41 and the spiral portion 45 of the inlet pipe 44 is fastened so that the discharge pipe 41 and the inlet pipe 44 ) Is connected, and a blocking film 47 having a valve hole 48 formed in a center thereof is formed in the inlet pipe 44.

The bimetal valve 100 includes a stopper 105 mounted on the bimetal frame 101 and the curved portion 102 of the bimetal frame 101 to open and close the valve hole 48 of the blocking film 47. The top 103 and the bottom 104 of the bimetal frame 101 are fixed to the first water pipe 40.

As a result, when the water stored in the heating tank 10 reaches the set temperature (for example, 80 ° C.), the valve hole of the shutoff film 47 is blocked as shown in the solid line in FIG. 6. 48), when the water stored in the heating tank 10 is not supplied to the pumping tank 30, and the water stored in the heating tank 10 reaches the set temperature (for example, 80 ° C), the bimetal frame As the curved portion 102 of the 101 is deformed from the solid line state to the double-dot line state, the stopper 105 is separated from the valve hole 48 and the valve hole 48 is opened, so that the water stored in the heating tank 10 Flow in the direction of the arrow 130 is supplied to the pumping tank (30).

As described above, when the first valve V1 is a bimetal valve, the first valve V1 may be conveniently applied to an outdoor thermal mat, such as a pressure valve, in which household AC 220 volts cannot be used.

Referring back to FIG. 1, the first water pipe 40 has an inner diameter d1 larger than an inner diameter d2 of the discharge port 37 of the pumping tank 30. The ratio of the first water pipe inner diameter d1 and the discharge port inner diameter d2 is determined in consideration of the expansion (or contraction) time of the balloon 30 and the opening / closing time of the first valve V1. In particular, when the first valve V1 is a bimetal valve, as mentioned above, the diameter of the valve hole 48 should be larger than the discharge port inner diameter D2.

As a result, when the first valve V1 is opened, the amount of water supplied from the heating tank 20 to the pumping tank 30 through the first water pipe 40 is discharged from the pumping tank 30. ) Is larger than the amount of water supplied to the mat 85, the water that has not been discharged through the discharge port 37 expands the balloon 35, and when the first valve V1 is closed, the expanded balloon 35 ) Is contracted and hot water is supplied to the mat 80 through the discharge port 37 at a predetermined pressure.

The pumping tank 30 has a spring 36 is disposed in the second chamber 33, the spring 36 is compressed when the balloon 35 is inflated, so that the balloon in the state in which the first valve V1 is closed When the spring (35) is contracted, the spring is restored to its original state to assist the contraction of the balloon (35).

Referring to FIG. 5, in another alternative, the pumping tank 30 is equipped with a bellows tube 38, one end of which is open to the piping 34 of the diaphragm 31 and the other end of which is closed, and the bellows tube 38. The bellows tube 38 is arranged in a contracted state by a spring 39 mounted around the perimeter.

It is mounted around the bellows tube 38 in the tensioned state of the spring 39 so that when the external force applied to the spring 39 is removed, the bellows tube 38 is contracted while the spring 39 is retracted. It becomes a state. Then, when hot water flows into the bellows tube 38 at a predetermined pressure, the bellows tube 38 is extended together with the spring 39.

The hot water circulation device according to the present invention configured as described above operates as follows.

When the heating device 20 heats the water 12 stored in the heating tank 10 in a state where the first valve V1 and the second solenoid valve V2 are closed, the temperature of the water of the heating tank 10 increases. As a result, the internal pressure of the heating tank 10 is increased.

When the water 12 stored in the heating tank 10 reaches the set temperature (eg, 80 ° C.) by the heating device 10 during the initial operation, the first valve V2 is opened.

At this time, the hot water of the heating tank 10 is supplied to the pumping tank 30 through the first water pipe 40 at a predetermined pressure by the internal pressure of the heating tank 10, and is supplied to the pumping tank 30. Some of the hot water is supplied to the mat 85 through the discharge port 37 of the pumping tank 30, the rest is supplied to the balloon 35, the balloon 35 is expanded.

The hot water passing through the hot water line 80 supplies heat to the mat 85 so that the temperature of the mat is increased, and the water passing through the mat 85 is circulated to the heating tank 10 through the recovery tank 50. .

In this way, the water is circulated from the heating tank to the heating tank again through the pumping tank, the mat and the recovery tank, so that the level of the heating tank is kept substantially constant, and is stored in the heating tank 10 by the heating device 10. The temperature of the water is maintained at a set temperature (eg 80 ° C.).

At this time, the balloon 35 of the pumping tank 30 reaches the maximum inflated state, and the expansion of the balloon is limited according to the size of the second chamber 33 of the pumping tank 30. When the balloon 35 reaches the maximum inflated state, the amount of water supplied from the heating tank 10 to the pumping tank 30 is equal to the amount of water discharged from the pumping tank 30 through the discharge port 37. .

Then, in the steady state, when the temperature of the mat 85 reaches the set temperature (for example, 40 ° C.), the operation of the heating apparatus 20 is stopped by the controller 90. Then, when the temperature of the water of the heating tank 10 reaches the lower limit set value (for example, 70 ℃), the first valve (V1) is closed, the heating device 20 is operated to the water of the heating tank 10 Heat it. At this time, as the balloon 35 that has been inflated is contracted, hot water is continuously supplied to the mat 85. Thereafter, when the hot water temperature of the heating tank 10 reaches the set temperature (eg, 80 ° C.), the first valve V1 is opened to supply the hot water to the mat.

Alternatively, in the state in which the first valve V1 and the second valve V2 are closed at the time of initial operation, the heating device 20 heats the water stored in the heating tank 10 to 100 ° C. or higher, thereby causing the mat by steam pressure. By allowing the hot water to be supplied to the furnace, the temperature of the mat can be quickly increased to the set temperature. When the temperature of the mat 85 reaches the set temperature, the temperature of the hot water stored in the heating tank 10 reaches the set temperature. The operation of the heating device 20 is stopped until the operation. Thereafter, the operation is performed in the same manner as in the normal state described above.

Here, for convenience of description, the set temperature of the hot water is described as an example of 80 ℃ and the set temperature of the mat 40 ℃, but through the experiment can be obtained data about the set temperature of the hot water, the set temperature of the mat and the valve control. .

Although the present invention has been described as a mat for convenience of description, it is not limited thereto, and it will be understood that the present invention can be applied to a hot pad, a blanket, a bed cover, a blanket, a blanket, a car seat, and the like, and belongs to the claims of the present invention. You will see that.

1 is a block diagram schematically showing a hot water circulation system according to the present invention

2 to 4 are schematic diagrams showing means for supplying heat to a heat pipe when the heater is a heat pipe;

Figure 5 is a schematic diagram showing an example in which the bellows tube is disposed in the pumping tank

6 is a side cross-sectional view of a bimetal valve

FIG. 7 is a cross-sectional view taken along the line A-A of FIG. 6 showing a bimetal valve

Claims (9)

A heating device 20 is mounted on the heating tank 10 to heat the water 12 filled in the heating tank 10, and to connect the heating tank 10 to the pumping tank 30. A first valve V1 is mounted on the pipe 40, the pumping tank 30 is divided into a first chamber 32 and a second chamber 33 by a diaphragm 31, and the diaphragm 31. The injection hole of the balloon 35 is mounted to the piping 34 formed at the center of the balloon 35, and the balloon 35 is disposed in the second chamber 33, and the recovery tank 50 is disposed on the heating tank 10. Is disposed, the recovery tank 50 and the heating tank 10 is connected by the second water pipe (60), the second valve (V2) is mounted on the second water pipe (60), the pumping The hot water line 80 connected to the discharge port 37 of the tank 30 is connected to the recovery tank 50 through the mat 85, so that the hot water 12 of the heating tank 10 is pumped tank 30, the mat (85), and circulated back to the heating tank 10 through the recovery tank 50 in order, Hot water circulating device, characterized in that heat exchanger unit 20 is a control operation by the controller 90. The method of claim 1, The heating tank 10, the pumping tank 30 and the recovery tank 50 are insulated, and the placement height of the heating tank 10 is relatively higher than the placement height of the pumping tank 30 based on the ground. It is arranged, the hot water circulation device, characterized in that the arrangement height of the recovery tank 50 is disposed at a position higher than the placement height of the heating tank (10). The method of claim 1, The heating device 20 is a hot water circulation device, characterized in that the rod-type cartridge electric heater or heat pipe. The method of claim 3, wherein When the heating device 20 is a heat pipe, a means for providing heat to a portion of the heat pipes disposed outside the heating tank 10 is a heating wire 21, a flame of the gas burner 22, or a heat exchanger 23. Hot water circulation device, characterized in that any one of steam. The method of claim 1, The first valve (V1) is a hot water circulation device, characterized in that any one of the solenoid valve, pressure valve or bimetal valve (100) for opening and closing the first water pipe by the temperature of the water stored in the heating tank (10). The method of claim 5, wherein When the first valve V1 and the second valve V2 are solenoid valves, respectively, the controller 90 receives a signal from the water level sensing means 55 mounted on the recovery tank 50, and the second valve. By controlling the opening and closing of the V2, the water level of the recovery tank 50 is always kept constant, and the second temperature mounted on the first temperature sensor 15 or the mat 85 mounted on the heating tank 20. Hot water characterized by receiving a signal from the sensor 87, controlling the operation of the heating device 20, and controlling the opening and closing of the first valve (V1) by receiving a signal from the first temperature sensor (15). Circulator. The method of claim 5, wherein When the first valve V1 is a bimetal valve 100, the first water pipe 40 may include a discharge pipe 41 connected to the heating tank 10 and an inlet pipe 44 connected to the pumping tank 30. The spiral portion 42 of the discharge pipe 41 and the spiral portion 45 of the inlet pipe 44 are fastened so that the discharge pipe 41 and the inlet pipe 44 are connected, and the inlet pipe ( A blocking film 47 having a valve hole 48 formed in a center thereof is formed at 44, and the bimetal valve 100 is mounted on the bimetal frame 101 and the curved portion 102 of the bimetal frame 101 to block the film 47. It consists of a stopper 105 for opening and closing the valve hole 48 of the hot water, characterized in that the top 103 and the bottom 104 of the bimetal frame 101 is fixed to the first water pipe (40) Circulator. The method of claim 1, In the pumping tank 30, a spring 36 is disposed in the second chamber 33, and the spring 36 is compressed when the balloon 35 is inflated, so that the first valve V1 is closed to open the balloon 35. Hot water circulation device, characterized in that to assist the contraction of the balloon (35) when it is contracted. The method of claim 1, The pumping tank 30 has a bellows tube 38 having one end open and the other end sealed to the piping 34 of the diaphragm 31, and a spring 39 mounted around the bellows tube 38. Hot water circulation system, characterized in that the bellows tube 38 is disposed in the contracted state.

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