KR20110113364A - Apparatus for heating control - Google Patents

Abstract

Supply line 110 is supplied with hot water; A hot water pipe line branched from the supply line 110 to each room so that the latent heat of the hot water is exchanged with the corresponding room; A return line 130 communicating with each of the hot water pipe passages 120 to return the hot water that has been heat exchanged; An outside air temperature sensor 140 provided to measure an outdoor air temperature; A controller 150 receiving information from the outside temperature sensor 140 and outputting different control signals according to changes in outside temperature; Mixing valve 160 for controlling the hot water temperature supplied to the hot water pipe line 120 by mixing the hot water returned from the return line 130 with the supply hot water of the supply line 110 according to the control signal of the control unit 150. ); It is installed on the supply line 110 to send the supply hot water passed through the mixing valve 160 toward the hot water pipe 120, the flow rate of the supply hot water in accordance with the control signal of the controller 150 A pump unit 170 for controlling the difference; A supply water temperature sensor 180 installed on the supply line 110 to measure the temperature of the supply hot water and send the information to the control unit; Installed in the supply line 110 or the return line 130, variable flow valve 200 for adjusting the flow rate of the hot water in accordance with the control signal of the control unit 150; The device is introduced.

Description

External temperature interlocking heating control device {APPARATUS FOR HEATING CONTROL}

The present invention relates to an outside temperature linked heating control device.

The heating system used in multi-family houses or large buildings uses individual heating to heat the fluid by means of a heat source such as a boiler installed independently in each household, and heats the fluid by an external heating source installed outside the household. After heating, the heated fluid is supplied to each household, and it is divided into the group heating.The group heating is again divided into the central heating using a heat source such as a central boiler in a multi-family complex or a large building, and the outside of the multi-family housing complex. Distinguished by district heating using the same heat source as the local power plant.

In general, such a heating system uses water as a heating fluid. Particularly, in a group heating system, a supply pipe branched into each generation from a central supply pipe supplied with hot water heated from a heat source is provided with a hot water supply header, a plurality of hot water pipes, and hot water return. The generation of hot water distribution system including a header and a return pipe for each generation is heated by each generation, after each generation return pipe is concentrated back to the central return pipe has a circulation system that is returned to the heat source.

1 is a schematic diagram of an external air temperature-linked flow control device according to the prior art.

Although FIG. 1 is described herein in the prior art, this is only to make the present invention easier to understand later compared to the prior art of FIG. 1, the prior art of FIG. It does not mean that.

In addition, the prior art of Fig. 1 reveals that the applicant is a technology derived from the process of transition from the beginning of the present invention until the present invention is finally conceived "technical concept that the indoor heating temperature is automatically controlled in conjunction with the outside temperature" .

Referring to FIG. 1, a general household heating system has a hot water supply header 113 connected to a supply pipe 112 branched from a central supply pipe 111, and branched into each room from the hot water supply header 113. A plurality of hot water pipe passages 120 for supplying heat, a return pipe 131 communicating with each of the hot water pipe passages 120, and a hot water return header 132 for collecting the return pipes 131 into one place. ), A return pipe 133 in communication with the hot water return header 132, and the central return pipe 134 is in communication with the generation-specific return pipe 133 again.

The hot water supplied from the central supply pipe 111 flows into the hot water pipe passages 120 installed in each room via the supply pipe 112 and the hot water supply header 113, and flows along the hot water pipe passage 120. (E.g., floor) to heat the room.

After the heat exchange, the hot water is lower than the supplied temperature is collected in the hot water return header 132 through each of the return pipe 131 and returned through the return pipe 133 and the central return pipe 134, respectively The driver 1 for controlling the flow rate of the hot water pipe line 120 is installed on the return pipe 131 to block the flow of hot water so as not to control the temperature of the room or to be heated.

In the winter, when the outside air temperature is low, the temperature of the supplied hot water is about 60 degrees Celsius in the case of collective heating, and the temperature of the returned hot water after the heat exchange is about 40 degrees Celsius. In this case, since less heat is lost during the heat exchange process, sufficient heating is achieved even by lowering the supply calorie (the supply calorie is equal to the amount of heat required for heating). In the related art of FIG. By mixing and lowering the temperature of the hot water sent to the hot water supply header 113 itself, there is no change in the flow rate of the supplied hot water.

As such, in order to properly mix the return water and the supply temperature water according to the outside temperature, an outside temperature sensor 140 for measuring the outside temperature is provided, and the outside temperature measured by the outside temperature sensor 140 is controlled by the controller 150. The controller 150 controls the mixing valve 10 installed in the supply pipe 112 so that the hot water and the hot water are mixed at an appropriate ratio.

As shown in FIG. 1, the mixing valve 10 is also communicated with the return pipe 133 so that a part of the hot water returned through the return pipe 133 flows into the mixing valve 10 together with the supply hot water. When the hot water supply header 113 is mixed with an appropriate ratio by returning hot water and supply hot water from the mixing valve 10, the temperature of hot water supplied to the hot water supply header 113 according to the outside temperature is increased. Adjusted.

In addition, the supply pipe 112 is necessary to the pump 20, the pump 20 to suck the hot water from the mixing valve 10 so that the hot water is smoothly supplied to the hot water supply header 113. In the configuration, the reason why the pump 20 is separately required is that the resistance is generated because the flow direction collides between the return water and the supply hot water in the mixing valve 10.

FIG. 2 is experimental data showing a temperature change of a hot water supplied and a change of heat supply according to an outside air temperature by the conventional apparatus of FIG. 1, and FIG. Is a graph.

2 and 3, when the outside air temperature is -10 degrees Celsius (for example, in winter), the temperature of the hot water passing through the mixing valve 10 is 60 degrees Celsius, and the supply heat amount is 187 W per square meter. (Hereinafter, "per square meter" is omitted), and in this state, when the outside temperature gradually rises to 10 degrees Celsius (for example, spring or autumn), the mixing valve 10 is relatively cooled after heat exchange. The purified hot water is mixed with the supply hot water. Therefore, the temperature of the hot water passing through the mixing valve 10 is 38 degrees Celsius and the supply heat amount at this time is 85W. Of course, at this time, the flow rate of the supplied hot water passed through the mixing valve 10 is always the same at 2.4 LPM (liter per minute).

That is, since the amount of heat required for heating is reduced in spring and autumn when the outside air temperature is increased, there is no problem in heating even when hot water of a low temperature is supplied from the mixing valve 10.

However, in the conventional external air temperature-linked flow control device as described above, since hot water always flows with a constant flow value, when the heating of one room is stopped, the excess flow flows to the other room during the heating, thereby increasing the flow rate. As a result, cavitation problems and thermal efficiency are deteriorated.

In addition, the conventional air temperature-linked flow control device requires a pump 20 for sending hot water passed through the mixing valve 10 to the hot water supply header 113, the pump is always rotated at a high speed in accordance with the supply flow rate Therefore, the energy consumption for driving the pump 20 is very large and there is a noise problem due to the high speed rotation of the pump 20 in particular.

In addition, when the conventional air temperature-linked flow control device is applied to the individual heating, the capacity of the pump 20 is similar to the capacity of the built-in pump in the boiler, so that the flow rate imbalance or pressure imbalance occurs, even when applied to the collective heating machine room Unbalance due to flow rate or pressure may occur between the main pump installed in the back and the like, and an abnormal phenomenon such as cavitation may occur.

In addition, the conventional external air temperature-linked flow control device is controlled so that the supply hot water temperature passing through the mixing valve is reduced in proportion to the increase in the outside air temperature, as shown in Figures 2 and 3 above, such a simple proportion according to the outside temperature When controlled in the form, for example, even though the outside temperature is low, even though there is a heating temperature that the user actually feels satisfied, there is a problem that the user is heated more than that because the heating temperature is always proportional to the outside temperature. It is not desirable to be.

The present invention is to solve the above problems, the object is as follows.

First, by using the variable flow valve that adjusts the total flow value to adjust the flow value according to the outside temperature, it provides variable hot water flow rate as needed for seasonal heating, ultimately preventing overheating or energy loss and always comfortable It is to be able to heat in state.

Second, by controlling the rotational speed of the pump installed at the rear end of the mixing valve, the flow rate of the supplied hot water is adjusted first in the pump to reduce the load of the variable flow valve to be installed at the rear end of the pump to increase the service life, while not requiring much flow rate. When not in use to reduce the number of revolutions of the pump driving energy and noise.

Third, the hot water temperature is linearly proportional to the outside air temperature by mixing the hot water returned from the mixing valve with the hot water supplied in the mixing valve to the room by investigating the heating temperature that the user is satisfied with. It is to save the heating energy with the optimal heating by changing the proportion proportionally.

Fourth, the room is controlled to be heated in an optimal state by accurately measuring the temperature of the supply water through a separate supply water temperature sensor.

In order to solve the above-mentioned problems,

A supply line through which hot water is supplied; A hot water pipe branch branched from the supply line to each room so that latent heat of the hot water is exchanged with the corresponding room; A return line communicating with each of the hot water pipe passages and returning hot water after heat exchange; An outside air temperature sensor provided to measure an outdoor air temperature; A control unit for receiving information from the outside temperature sensor and outputting different control signals according to the change of outside temperature; A mixing valve controlling hot water temperature supplied to the hot water pipe by mixing hot water returned from the return line with supply hot water of the supply line according to a control signal of the controller; A pump unit which is installed on the supply line to send the supply hot water passing through the mixing valve toward the hot water pipe path, and primarily adjusts the flow rate of the supply hot water according to a control signal of the controller; A supply water temperature sensor installed on the supply line to measure a temperature of the supply hot water and send the information to the control unit; And a variable flow valve installed in the supply line or the return line and controlling the flow rate of the hot water secondly according to a control signal of the controller, wherein the controller increases the outside air temperature by the information of the outside air temperature sensor. Accordingly, the temperature of the supply hot water passing through the mixing valve is controlled to be reduced within a predetermined range, and the rotational speed of the pump unit is reduced to reduce the flow rate of the supply hot water to the primary and control the variable flow valve to reduce the flow rate of the supply hot water 2. By reducing the difference, it is characterized in that the temperature of the supply hot water is precisely controlled by correcting the control of the mixing valve by the information of the supply water temperature sensor.

The control unit maintains the supply hot water temperature at a constant "relative high temperature value" when the input outside air temperature is equal to or lower than the set "low reference point", and the input outside air temperature is in the range between the "low reference point" and "high reference point." When the outside air temperature increases, the supply hot water temperature is proportionally reduced, and when the input outside air temperature is higher than the "highest reference point", the supply hot water temperature is kept constant at a "relative low temperature value".

The “lowest reference point” is −5 ± 2 ° C., the “highest reference point” is 15 ± 2 ° C., the “relative hot water value” of the supplied hot water is 42 ± 2 ° C., and the “relative low temperature value” of the supplied hot water. Is characterized in that 25 ± 2 ℃.

The pump unit may be an inverter pump having a rotational speed varying linearly according to a control signal of the controller, or a stepping pump having a rotational speed varying step by step.

The control unit is characterized in that for reducing the number of revolutions of the pump unit as the outside temperature increases.

Between the supply line and the return line, it is characterized in that the water distribution unit is formed so that the inside of the hollow to adjust the pressure and flow rate changes generated between the supply water and the return water is in communication with each other .

The water dispensing unit is provided with a strainer for filtering foreign matter contained in the hot water, one side of the water dispensing unit is provided with a foreign matter discharge port for discharging the foreign matter filtered by the strainer, the other side of the water dispensing unit Characterized in that the air outlet for discharging the included air is provided.

Between the supply line and the return line is characterized in that the differential pressure valve for adjusting the pressure change and the flow rate changes generated between the supply line and the hot water line.

An indoor temperature controller having a function of measuring indoor air temperature and a desired temperature is provided on one side of the wall of the room, and a bottom temperature sensor for measuring the temperature of the floor is provided on one floor of the room, and the indoor temperature controller and the bottom temperature sensor are provided. Is input to the control unit.

The indoor temperature controller is provided with an on-dol selection unit and a bed selection unit is characterized in that the control unit receives the signal of any one of the indoor temperature controller or the floor temperature sensor according to the selection.

According to the present invention, by using a variable flow valve in which the flow rate of the supplied hot water is controlled, the flow rate of the supplied hot water is reduced in accordance with the increase in the outside temperature, and when the outdoor temperature is high, the supply heat is lowered, thereby actively changing the outside temperature. By controlling the heating energy of the household to prevent the overheating or energy loss, there is an advantage that a comfortable heating can be performed at all times.

In addition, when the outside temperature rises, since the flow rate of the supplied hot water decreases, the flow rate of the hot water is slowed to secure sufficient heat exchange time. Accordingly, the thermal efficiency is increased, thereby saving heating energy.

In addition, since the pump speed is controlled according to the outside temperature, the flow rate can be adjusted in the pump, so the load of the variable flow valve is relatively reduced, thereby increasing the life of the variable flow valve, and in particular, the pump output and noise due to the reduction of the rotation speed of the pump. This has the advantage of being reduced.

In addition, unlike the conventional linear proportional control, since the mixing valve is proportionally controlled according to the outside temperature within the temperature range where the user feels satisfied, the user's satisfaction is increased and the heating energy is particularly saved. .

In addition, the present invention has the advantage that the heating temperature is more precisely controlled because it accurately measures the temperature of the supply water.

In addition, since the room temperature is measured by dividing the bed user and the ondol user, the heating temperature is controlled more accurately and comfortably.

1 is a schematic diagram of an external air temperature-linked flow control device according to the prior art;
2 is experimental data showing a change in temperature and a change in heat supply of hot water supplied according to the outside temperature by the conventional apparatus of FIG.
3 is a graph showing the correlation between the outside air temperature and the supply hot water temperature based on the experimental data of FIG.
4 is an explanatory view showing that the heating control device according to the present invention is applied to the group heating structure;
5 is an explanatory view showing that the heating control device according to the present invention is applied to an individual heating structure,
Figure 6 is a result graph showing the temperature change of the supply hot water variable according to the outside temperature in the mixing valve of the present invention,
7 is a cross-sectional view showing the structure of a variable flow valve used in the present invention;
8 is a cross-sectional view showing the structure of a drive body used in the present invention;
9 is a view showing the structure of the water distribution unit used in the present invention,
10 is a reference diagram showing that the pressure and flow rate changes in the water distribution unit,
11 is a reference diagram showing a room temperature controller according to the present invention.

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

4 is an explanatory view showing that the heating control device according to the present invention is applied to the collective heating structure, Figure 5 is an explanatory view showing that the heating control device according to the present invention is applied to the individual heating structure, Figure 6 is a view of the present invention The result graph showing the temperature change of the supply hot water variable according to the outside temperature in the mixing valve, Figure 7 is a cross-sectional view showing the structure of the variable flow valve used in the present invention, Figure 8 is the structure of the drive main body used in the present invention 9 is a view showing the structure of the water distribution unit used in the present invention, Figure 10 is a reference diagram showing that the pressure and flow rate change in the water distribution unit, Figure 11 is in accordance with the present invention A reference diagram showing the room temperature controller.

As shown in Figure 4 and 5, the present invention is largely supply line 110, hot water pipe 120, return line 130, outside temperature sensor 140, the controller 150, mixing valve 160, a pump unit 170, a supply water temperature sensor 180, and a variable flow valve 200.

The supply line 110 collectively refers to a configuration in which hot water is supplied to each room. In the case of collective heating as shown in FIG. 4, the supply line 110 includes a central supply pipe 111 connected to a heat source outside the household, It is composed of a supply pipe 112 branched from the central supply pipe 111 so that hot water is supplied to each household, and a hot water supply header 113 communicating with the supply pipe 112 to distribute hot water to each room.

In addition, in the case of individual heating as shown in FIG. 5, the supply line 110 is connected to the supply pipe 112 directly connected to the boiler 10, and a hot water supply header communicating with the supply pipe 112 to distribute hot water to each room. It consists of 113.

In addition, the hot water pipe line 120 is configured to branch to each room from the supply line 110 so that the latent heat of the hot water is heat-exchanged with the room, each of the hot water pipe line 120 to the hot water supply header 113 In communication with the hot water flows along the hot water pipe passage (120).

The hot water pipe line 120 is usually disposed in the form of a coil inside the floor to be heated so that the whole floor is evenly heated, heat exchange with the floor in the process of hot water flows along the hot water pipe 120 to warm the floor and then the hot water Cool down and return.

The return line 130 communicates with each of the hot water pipe passages 120 so as to collectively refer to a configuration in which the hot water that has been heat exchanged is returned. In the case of collective heating as shown in FIG. 4, the return line 130 is connected to the hot water pipe passage ( A return pipe 131 in communication with 120, a hot water return header 132 for collecting the return pipes 131, and a return pipe 133 in communication with the hot water return header 132; The return pipe 133 of each generation is gathered again into a central return pipe 134 connected to the heat source outside the generation.

On the other hand, in the case of individual heating, as shown in Figure 5, the return line 130 is a hot water return header 131 to communicate with the hot water pipe line 120, the return pipe 131 to gather in one place ( 132 and the hot water return header 132 is made of a return pipe 133 connected to the boiler 10.

In this case, the supply line 110 or the return line 130 is typically made as described above, but may be omitted or integrated into one bar, the supply line 110 is the hot water before starting the heat exchange It is a line to be supplied, and the return line 130 can be seen as a line for recovering the hot water after the heat exchange.

On the other hand, the outside temperature sensor 140 is a temperature measuring sensor provided in the outdoor to measure the outdoor air temperature, and measures the temperature of the outside air and outputs an electrical signal corresponding to the corresponding temperature. Since the outside temperature sensor 140 generally corresponds to a well-known configuration, a detailed description thereof will be omitted.

In addition, the controller 150 is provided with information on the outside temperature through the electrical signal output from the outside temperature sensor 140, the control unit 150 outputs a different control signal in accordance with the change in the outside temperature The mixing valve 160, the pump unit 170, and the variable valve flow rate 200 are respectively controlled.

The mixing valve 160 mixes hot water returned from the return line 130 with the supply hot water of the supply line 110 according to a control signal of the controller 150 to correspond to the outside temperature of the hot water pipe line 120. ) To adjust the temperature of hot water supplied to the unit.

In controlling the mixing valve 160, the control unit 150 does not always linearly control in proportion to the outside air temperature as in the past, but the supply hot water temperature is proportionally increased as the outside air temperature increases only in a certain section. Control to be reduced.

For reference, in the conventional linear control method, since the supply temperature of hot water increases proportionally as the outside temperature is low, the heating temperature of the room is very high. In this case, the user feels hot due to the high temperature of the room, so the satisfaction decreases.

Accordingly, the present invention allows the mixing valve 160 to be controlled in a proportional manner in which the proportional control is performed only within a certain section, not always in proportion to the outside temperature.

Referring to Figure 6, it can be seen that the supply hot water temperature is changed only within a certain period as the outside temperature is changed, wherein the point where there is no change in the temperature of the supply water even if the outside temperature is no longer defined as the "lowest reference point" The point where there is no change in temperature of supply water even if the outside temperature rises further is defined as the "highest reference point".

And, the temperature value of the supply hot water that is kept constant when the outside temperature is below the minimum reference point is defined as "relative high temperature value", and the temperature value of the supply hot water that is kept constant when the outside temperature is above the maximum reference point is referred to as "relative low temperature value". define.

Accordingly, the controller 150 maintains the supply hot water temperature at a "relative high temperature value" when the outside air temperature input from the outside air temperature sensor 140 is equal to or lower than the "lowest reference point".

In addition, the controller 150 reduces the supply hot water temperature proportionally as the outside temperature is increased when the received outside temperature is in the range between the "lowest reference point" and "highest reference point."

In addition, the controller 150 maintains the supply hot water temperature at a "relative low temperature value" constant when the input outside air temperature is equal to or greater than the "highest reference point". Allow the temperature to change.

In other words, no matter how low the outside air is below the minimum reference point, the supply hot water temperature maintains the relative high temperature value. To help.

 In the present invention, the lowest reference point is -5 ± 2 ℃, the highest reference point is 15 ± 2 ℃, the relative high temperature water value of the supplied hot water is 42 ± 2 ℃, the relative low temperature water temperature of 25 ± 2 ℃ Although it is set to, but this can be changed as many as the needs of the practitioner to be changed out of this range will also be said to belong to the scope of the present invention.

In addition, the pump unit 170 is configured to be installed on the supply line 110 to send the supply hot water passed through the mixing valve 160 toward the hot water pipe 120, the control unit 150 of According to the control signal, the flow rate of the supplied hot water is adjusted first.

The pump unit 170 is a flow rate of the supply hot water is adjusted as the rotation speed is controlled by the control unit 150, the control unit 150 is the rotation speed of the pump unit 170 as the outside air temperature increases To reduce the flow rate of the supplied hot water in the pump unit 170.

Here, the pump unit 170 may be an analog type inverter pump whose rotation speed is linearly variable according to the control signal of the control unit 150, the rotation speed is suddenly changed in step by receiving a pulse signal from the control unit 150 A digital stepping pump may be used. Since the inverter pump and the stepping pump are generally known matters, detailed description thereof will be omitted.

In addition, the supply water temperature sensor 180 is installed on the supply line 110, as shown in Figures 4 and 5 to measure the temperature of the supply temperature of the water and the information (various electrical signals according to the temperature change) It is a structure sent to the said control part 150.

The supply water temperature sensor 180 only needs to be located on the supply line 110, but more preferably, the temperature immediately before flowing into the hot water pipe 120 is measured so that the heating temperature of the room is more precisely controlled. Good to do.

When the supply water temperature sensor 180 directly measures the temperature of the supply temperature water and sends the temperature to the control unit 150, the control unit 150 uses the information of the supply water temperature sensor 180 to return water from the mixing valve 160. By controlling the mixing ratio of the hot water and the supply hot water, since the actual temperature of the supply hot water is controlled, as shown in FIG. 6, it is possible to provide the supply hot water of the correct temperature corresponding to the outside temperature.

On the other hand, the variable flow valve 200 is installed in the supply line 110 or the return line 130, when receiving the control signal from the control unit 150 of the supply line 110 or the return line 130 Secondly adjust the flow rate of hot water flowing inside the tube.

4 and 5, but the variable flow valve 200 is shown installed in the return line 130, but is not necessarily limited to this, even if it is installed in the supply line 110 can perform the same function, the need of the practitioner According to the installation position can be selected. The specific structure of the variable flow valve 200 and the principle of adjusting the flow rate of hot water will be described later.

For reference, when the controller 150 receives information on the outside temperature from the outside temperature sensor 140, the controller 150 controls the variable flow valve 200 so that the flow rate corresponding to the outside temperature is supplied to the hot water pipe 120. By controlling the flow rate of the supplied hot water, the temperature of the supplied hot water (eg, about 42 degrees Celsius) is changed by the mixing valve 160 according to the outside temperature.

In addition, the flow rate of the hot water supplied to the variable flow valve 200 is also changed by the pump unit 170, when the outside air temperature rises, the rotation speed of the pump unit 170 is reduced the variable flow valve 200 Since a small flow rate is supplied, the variable flow valve 200 greatly reduces the load in controlling the total flow rate value, thereby lengthening the life of the variable flow valve 200.

As such, the controller 150 controls the pump unit 170 and the variable flow valve 200 so that the flow rate of the hot water decreases as the outside air temperature rises. The time is more sufficient and the thermal efficiency is increased, and the cavitation (cavitation) generated from the hot water flowing in the pipe is also reduced, which significantly reduces the pipe noise.

Hereinafter, the variable flow valve 200 will be described in detail with reference to FIGS. 7 and 8. The variable flow valve 200 may be installed in the supply line 110, but it will be described on the assumption that it is installed in the return line 130, as shown in the figure for convenience of description.

The variable flow valve 200 is installed in the return pipe 133 of the return line 130, the total flow rate of the generation in the variable flow valve 200 and the pump unit 170 is limited, the control unit 150 Flow rate of the return pipe 133 is adjusted by the electrical signal of the).

When an electrical signal is applied to the variable flow valve 200 to adjust the flow rate cross-sectional area of the return pipe 133 to change the flow rate passing through the return pipe 133, the structure of the variable flow valve 200 is shown in FIG. It is shown in detail in 7.

As shown in FIG. 7, the variable flow valve 200 includes a body 210, a chamber 220, a diaphragm 230, a movable body 240, and an actuator 250. .

An inlet 211 is formed at one side of the body 210 to receive the fluid to be returned, and an outlet 212 is formed at the other side thereof to the fluid. The body 210 has the inlet 211. A flow path through which the outlet 212 communicates is provided therein.

In addition, the body 210 has a sheet 213 is formed between the inlet 211 and the outlet 212 to reduce the cross-sectional area of the flow path is the fluid entering the body 210 through the inlet 211 is Passed through the sheet 213 is discharged to the outside through the outlet (212).

The chamber 220 is a predetermined space formed in one side of the body 210, the hydraulic passage (H) in the chamber 220 so that the hydraulic pressure on the inlet 211 side and the hydraulic pressure on the seat 213 side, respectively 221, 222 are formed.

Referring to FIG. 7, the chamber 220 has a first hydraulic passage 221 communicating with the inlet 211 side so that the hydraulic pressure acts on the inlet 211 side, and the hydraulic pressure acts on the seat 213 side. A second hydraulic passage 222 is formed in communication with the seat 213 side.

Accordingly, the chamber 220 includes a first hydraulic chamber 223 communicating with the first hydraulic passage 221 and a second hydraulic chamber 224 communicating with the second hydraulic passage 222. Is separated by).

The diaphragm 230 is installed in the chamber 220 so that the first hydraulic chamber 223 and the second hydraulic chamber 224 are separated from each other, and both sides of the diaphragm 230 face the inlet 211. When the hydraulic pressure and the hydraulic pressure on the seat 213 side act, respectively, they are deformed by the pressure difference.

The movable body 240 is coupled to one side of the diaphragm 230 is elastically installed to adjust the cross-sectional area from the sheet 213 toward the outlet 212 by the pressure difference in the chamber 220, When the diaphragm 230 is deformed due to the pressure difference of the chamber 220, the diaphragm 230 receives the deformation force and approaches the sheet 213.

Here, the movable body 240 includes a head portion 241, a stem portion 242, and an elastic member 243, wherein the head portion 241 is coupled to the diaphragm 230. to be.

In addition, the stem portion 242 extends from the head portion 241 toward the seat 213 to adjust the cross-sectional area from the seat 213 toward the outlet 212 according to the deformation of the diaphragm 230. Site.

Therefore, the stem portion 242 is moved in accordance with the deformation of the diaphragm 230 while increasing or decreasing the cross-sectional area from the seat 213 toward the outlet 212 to lower or lower the hydraulic pressure at the seat 213 side. Raised.

The second hydraulic passage 222 communicating with the second hydraulic chamber 224 may be formed in the body 210 so as to communicate with the seat 213 side. However, in the present invention, the second hydraulic passage may be formed. 222 may be formed inside the stem 242.

Accordingly, the second hydraulic chamber 224 communicates with the seat 213 through the second hydraulic passage 222 formed in the stem 242.

In addition, when the first hydraulic chamber 223 and the second hydraulic chamber 224 are in the same pressure state, the movable body 240 should be restored to an initial position as shown in FIG. 243 is installed between the movable body 240 and the chamber 220.

When the fluid of a certain hydraulic pressure enters the body 210 and a high pressure fluid is higher than this at any moment, the hydraulic pressure of the inlet 211 becomes higher than the hydraulic pressure of the seat 213, and thus the inlet 211. The pressure of the first hydraulic chamber 223 in communication with the () is higher than the pressure of the second hydraulic chamber 224 in communication with the seat 213 bar pressure due to this pressure difference The diaphragm 230 is bent toward the second hydraulic chamber 224 by acting toward the second hydraulic chamber 224, and the movable body 240 is caused by the deformation of the diaphragm 230. The end of the movable body 240 is pushed toward the seat 213 to reduce the cross-sectional area leading from the seat 213 toward the outlet 212.

When the cross-sectional area leading from the seat 213 toward the outlet 212 is reduced, the oil pressure in the seat 213 gradually rises and finally reaches a state equal to the oil pressure of the inlet 211 side. When the hydraulic pressure of the seat 213 side becomes the same, the pressure of the first hydraulic chamber 223 and the second hydraulic chamber 224 reaches an equilibrium state, and the movable body 240 is restored to its original position by the elastic force.

As such, the chamber 220, the diaphragm 230, and the movable body 240 are configured such that the hydraulic pressure at the inlet 211 side and the seat 213 side can always be maintained the same. The reason for maintaining the same is that the pressure at the inlet 211 side and the sheet 213 side should be the same so that the desired flow rate can be precisely controlled by adjusting the cross-sectional area of the flow rate from the inlet 211 side to the sheet 213 side. Because.

On the other hand, when the hydraulic pressure of the inlet 211 side and the seat 213 side is maintained in the same state by the above configuration, the flow rate passing through the seat 213 by the actuator 250 is adjusted.

The actuator 250 is installed on the other side of the body 210, and controls the actual flow rate by adjusting the cross-sectional area from the inlet 211 toward the seat 213 by an electrical signal, the actuator 250 The flow rate control is enabled by substantially adjusting the cross-sectional area passing from the inlet 211 side to the seat 213 side.

The actuator 250 includes a driving body 251 and a moving rod 252 largely, the driving body 251 is electrically connected to the controller 150 to be described later, the electrical signal from the controller 150 When you receive it will be converted into exercise power.

The driving force of the driving body 251 is transmitted to the moving rod 252 and the cross-sectional area passing from the inlet 211 side toward the seat 213 is adjusted by the length change according to the movement of the moving rod 252. .

Here, the drive body 251 has a structure as shown in Figure 8, the control unit 150 is electrically connected to the drive motor 253 of the drive body 251 to operate the drive motor 253. The driving motor 253 applies a rotational force to the driving gear 255 through the reduction gear 254.

Although not shown in FIG. 8, the drive gear 255 is connected to the movable rod 252 so as to be power-transmitted to provide an external force for the linear movement of the movable rod 252.

In this case, since the controller 150 may receive the information about the position of the linear movement rod 252, the flow rate passing from the inlet 211 side to the seat 213 side can be known. In addition, the driving gear 255 is power connected to the sensor gear 257 through the connecting gear 253.

Accordingly, when the driving gear 255 is rotated, the sensor gear 257 is rotated in conjunction with the sensor gear 257. The sensor gear 257 has a variable resistor 258, which is generally known, and the variable resistor 258. Since the output value of the controller 150 is input to the controller 150, the controller 150 receives the output value of the variable resistor 258 in real time, that is, the amount of rotation of the drive gear 255, that is, of the moving rod 252. The location is known.

The drive gear 255 may be rotated one or more times, but since the sensor gear 257 must be rotated in contact with the variable resistor 258, the number of revolutions is limited to less than one time. It is preferable that an appropriate gear ratio is set between the drive gear 255 and the sensor gear 257. For reference, in the present invention, the rotation angle of the sensor gear 257 is limited to 270 degrees or less, and a variable resistor 258 is installed within the rotation angle range, and the control unit 150 moves the moving rod 252. Various parameters such as the distance and the diameter of the seat 213 are input, and the flow rate can be estimated by knowing the moving distance of the moving rod 252.

As such, the movable rod 252 extends from the driving body 251 and receives a force from the driving body 251 to enter the sheet 213 toward the seat 213 while being inserted into the body 210. The flow rate is controlled as the moving rod 252 adjusts the cross-sectional area of the sheet 213.

At this time, the outer diameter of the movable rod 252 is preferably set to a size corresponding to the inner diameter of the seat 213, the fluid can flow at all when the movable rod 252 is completely fitted to the seat 213 The flow rate is " 0 ".

Meanwhile, as illustrated in FIGS. 4 and 5, a water distribution unit 300 is provided between the supply line 110 and the return line 130.

The water distribution unit 300 is specifically composed of the structure shown in Figure 9, the water distribution unit 300 has a hollow inside to adjust the pressure change or flow rate changes generated between the supply water and the return water Consists of, the water distribution unit 300 is provided with a plurality of ports for connecting with the supply line 110 and the return line 130.

Therefore, since the supply water and the return water are in communication with each other in the water distribution unit 300, even if a pressure or a flow rate difference occurs between the supply line 110 and the return line 130, the water supply unit 300 is adjusted.

For example, if the pressure of the supply line 110 and the return line 130 is the same as in (a) in Figure 10, the flow of hot water does not occur inside the water distribution unit 300, the supply line 110 Assuming that the pressure at is higher than the pressure of the return line 130, as shown in (b), the high pressure supply warm water flows toward the low pressure return water in the water distribution unit 300, and vice versa. In this case, the high pressure return water flows toward the low pressure supply hot water as in (c) to achieve a pressure balance.

In addition, the water distribution unit 300 is provided with a strainer 310 for filtering foreign matter contained in hot water, foreign matter discharge port on one side of the water distribution unit 300 so that the foreign matter filtered by the strainer 310 is discharged 320 is provided.

In addition, when the hot water flows in the supply line 110 or the return line 130, air may be included. Such air occupies a volume. Therefore, the other side of the water discharge unit 300 is provided with an air discharge port 330 for discharging the air contained in the hot water, the air discharge port 330 is the number because the air is usually light up It is preferably formed on the upper portion of the distribution unit (300).

In addition, a differential pressure valve 400 may be installed between the supply line 110 and the return line 130 to adjust a pressure change and a flow rate change generated between the supply line and the hot water line. The function of the differential pressure valve 400 is similar to the water discharge unit 300, but there is no foreign matter removal function or air discharge function, and is used instead of the water discharge unit 300 because only the flow rate or pressure control function is used. It may be used or may be used together with the water distribution unit 300. Since the structure of the differential pressure valve 400 corresponds to a well-known art, a detailed description thereof will be omitted.

On the other hand, as shown in Figures 4 and 5, the room is provided with an indoor temperature controller 190 that allows the user to set the desired temperature and to measure the indoor air temperature.

In addition, a floor temperature sensor 195 for measuring the floor temperature is provided on one side of the floor of the room, and the signals of the room temperature controller 190 and the floor temperature sensor 195 are input to the controller 150.

When the desired temperature set by the user through the room temperature controller 190 becomes equal to the room temperature, the controller 150 stops the operation of the pump unit 170 and completely closes the variable flow valve 200 to allow the flow rate. The heating is stopped by preventing the flow of water.

However, when the room temperature is lower than the desired temperature, heating is performed, and there are two methods of measuring the room temperature.

For the ondol-type user who sleeps on the floor, it is preferable to control the heating temperature by directly measuring the floor temperature, and for the bed-type user who sleeps on the bed, it is preferable to control the heating temperature by measuring indoor air.

The indoor air temperature is measured by a temperature sensor provided in the indoor temperature controller 190 to send an electrical signal to the controller 150, and the floor temperature is measured by the floor temperature sensor 195 to be electrically transmitted to the controller 150. Send a signal, the user can choose the way he wants.

Accordingly, as shown in FIG. 11, the indoor temperature controller 190 includes an on-dol selection unit 191 and a bed selection unit 192, and the controller 150 controls the indoor temperature controller according to the user's selection. 190 or the floor temperature sensor 195 receives a signal to perform the heating control.

As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to the specific Example described, and the person of ordinary skill in the art is not limited within the scope of this invention. Substitution and modification of the components are possible, which also belongs to the rights of the present invention.

110: supply line 120: hot water pipe
130: return line 140: outside temperature sensor
150: control unit 160: mixing valve
170: pump unit 180: supply water temperature sensor
190: Room temperature controller 195: Floor temperature sensor
200: variable flow valve 300: moisture distribution unit
400: differential pressure valve

Claims (10)

Supply line 110 is supplied with hot water;
A hot water pipe line branched from the supply line 110 to each room so that the latent heat of the hot water is exchanged with the corresponding room;
A return line 130 communicating with each of the hot water pipe passages 120 to return the hot water that has been heat exchanged;
An outside air temperature sensor 140 provided to measure an outdoor air temperature;
A controller 150 receiving information from the outside temperature sensor 140 and outputting different control signals according to changes in outside temperature;
Mixing valve 160 for controlling the hot water temperature supplied to the hot water pipe line 120 by mixing the hot water returned from the return line 130 with the supply hot water of the supply line 110 according to the control signal of the control unit 150. );
It is installed on the supply line 110 to send the supply hot water passed through the mixing valve 160 toward the hot water pipe 120, the flow rate of the supply hot water in accordance with the control signal of the controller 150 A pump unit 170 for controlling the difference;
A supply water temperature sensor 180 installed on the supply line 110 to measure the temperature of the supply hot water and send the information to the control unit;
And a variable flow valve 200 installed in the supply line 110 or the return line 130 to secondly regulate the flow rate of the hot water according to a control signal of the controller 150.
The controller 150 controls the temperature of the supplied hot water passing through the mixing valve 160 to be reduced within a predetermined range as the outside air temperature increases by the information of the outside air temperature sensor 140, and the pump unit 170. Reduce the flow rate of the supply hot water to the primary by reducing the rotational speed of the) and reduce the flow rate of the supply hot water to the secondary by controlling the variable flow valve, the control of the mixing valve 160 by the information of the supply water temperature sensor 180 External temperature interlocking heating control device, characterized in that for correcting the temperature of the supply hot water to be precisely controlled. The method of claim 1, wherein the controller 150 maintains the supply temperature of the hot water at a constant "relative hot water value" when the received outside temperature is equal to or less than the set "lowest reference point", and the received outside temperature is at the "lowest reference point." When in the range between the "highest reference point", the supply temperature of hot water decreases proportionally as the outside temperature increases, and when the input outside temperature is above the "highest reference point", the supply temperature of hot water is fixed as the "relative low temperature value". External temperature interlocking heating control device, characterized in that to maintain. The method of claim 2, wherein the "lowest reference point" is -5 ± 2 ℃, the "highest reference point" is 15 ± 2 ℃, the "relative hot water value" of the supply hot water is 42 ± 2 ℃, "Relative low temperature value" is the outside temperature interlocking heating control device, characterized in that 25 ± 2 ℃. The method of claim 1, wherein the pump unit 170 is an inverter air pump of which the rotational speed is linearly variable according to the control signal of the control unit 150, or the stepping pump is characterized in that the rotational temperature is variable step by step Heating control device. The outside temperature interlocking heating control device according to claim 4, wherein the control unit 150 reduces the rotation speed of the pump unit 170 as the outside temperature increases. The method according to claim 1, Between the supply line 110 and the return line 130, the inside of the hollow to adjust the change in pressure and flow rate generated between the supply hot water and the return hot water, the supply hot water and the return hot water communicate with each other External temperature interlocking heating control device, characterized in that the moisture distribution unit 300 is formed to be provided. The method of claim 6, wherein the water distribution unit 300 is provided with a strainer 310 for filtering foreign matter contained in hot water, one side of the water distribution unit 300 discharges the foreign matter filtered by the strainer 310 A foreign matter discharge port 320 is provided to the outside, the other side of the water discharge unit 300, the air temperature interlocking heating control device, characterized in that the air discharge port 330 for discharging the air contained in the hot water is provided. The method according to claim 1 or 7, characterized in that between the supply line 110 and the return line 130, the differential pressure valve 400 for adjusting the pressure change and the flow rate change generated between the supply line and the hot water line is installed. External temperature interlocking heating control device. The room temperature controller 190 having a function of measuring indoor air temperature and setting a desired temperature is provided at one side of a wall of the room, and a bottom temperature sensor 195 for measuring the temperature of the floor is provided at one side of the room. Is provided, the signal from the room temperature controller 190 and the floor temperature sensor 195 is input to the control unit 150, the outside temperature interlocking heating control device. The method of claim 9, wherein the indoor temperature controller 190 is provided with an on-dol selection unit 191 and the bed selection unit 192 is provided according to whether the control unit 150 is the indoor temperature controller 190 or the floor External temperature interlocking heating control device, characterized in that for receiving a signal of any one of the temperature sensor (195).

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