KR20020072354A - Multi temperature control device for korean under-floor heating system - Google Patents

Abstract

PURPOSE: A multi-functional temperature control apparatus is provided to maintain the bottom temperature and indoor temperature adapted for the human by setting a communication protocol between control devices. CONSTITUTION: A water temperature detecting section detects the temperature of heating water supplied through a heat exchanger(14) and a pump(16). An indoor temperature detecting section detects the indoor temperature. The first to fourth temperature adjusters(RC1-RC4) are provided to display the temperature signal of the indoor temperature detecting section. The first to fourth electromotive valves are installed at rear ends of the first to fourth heating water pipes(RM1 to RM4) to discharge or shut off heating water. The first to fourth water temperature detecting sections are provided at rear ends of the first to fourth heating water pipes(RM1 to RM4) so as to detect the temperature of discharged heating water. The first to fourth flow rate detecting sections are provided to detect flow rate of heating water discharged from the first to fourth heating water pipes(RM1 to RM4). A calory controller(12) outputs a valve control signal to control the electromotive valves based on a program accommodated therein.

Description

Multi temperature control device for hot water ondol heating system {Multi temperature control device for korean under-floor heating system}

The present invention relates to a multi-functional temperature control device for hot water ondol heating system, and in particular, the amount of heat and ondol according to the temperature difference and flow rate between the inlet temperature of the heating hot water supplied to the heating hot water pipe and the outlet temperature of the heating hot water discharged from the heating hot water pipe By predicting the floor surface temperature and the indoor air temperature of the room based on the heat storage characteristics of the system, it is possible to precisely adjust the set temperature by operating the electric valve, and to control all the electric valves to be operated alternately instead of simultaneously. The capacity of the supply facility can be drastically reduced, and the temperature controller relates to a multifunctional temperature controller for a hot water ondol heating system that allows the floor surface temperature and indoor air temperature to be adjusted in various forms required by the human body.

Conventional room temperature control device increases the temperature by measuring the air temperature in the room to open the heating hot water supply valve at the time when the temperature is lower than the set temperature and supply the heating hot water to the heating water pipe, and at the time when the temperature is higher than the set temperature The temperature is lowered by closing the heating hot water supply valve to block the supply of heating hot water to the heating hot water pipe.

In addition, the Republic of Korea Patent Application Publication Nos. 98-14110 and 98-14111 sequentially input the temperature value of the room air and the temperature value of the room floor at two sensor input points and supply hot water based on the set value of the temperature for a predetermined time. By controlling the opening and closing of the valve and then repeatedly controlling the opening and closing of the hot water supply valve based on the set value of the floor temperature, the temperature and the bottom surface temperature can be maintained within the set comfort range, and the heating heat energy according to the maintenance of the proper temperature. A multifactorial temperature control device for an ondol heating house that minimizes the loss of electricity and provides a comfortable living temperature at all times is disclosed.

The temperature control device has a problem with overheating because it does not immediately reflect the room air temperature with respect to the heat accumulated in the structural structure of the ondol. In addition, the floor surface temperature has a difference in temperature depending on the position of the sensor, and does not accurately calculate the amount of heat accumulated in the ondol structure, which includes a fundamental problem of overheating.

In the conventional temperature control devices, since the capacity of the boiler or pump is selected for the operation of the entire heating area and all the hot water supply valves, the boiler or the pump and the piping are considerably large, which causes a lot of heat loss and power loss. .

In view of the above, the present inventor has filed a multifunctional temperature control apparatus for a hot water ondol heating system with a new concept, and such a prior application has been disclosed in Korean Patent Laid-Open No. 2000-31679.

The present inventors have further developed and developed such an earlier application to complete the present invention.

The technical problem to be achieved by the present invention is to calculate the amount of heat input by detecting the temperature difference and the flow rate between the inlet temperature of the heating hot water supplied to the heating hot water pipe and the outlet water temperature of the heating hot water discharged from the heating hot water pipe, In consideration of heat loss or heat gain due to heat quantity and ambient temperature, it gives the function of predicted operation according to the set temperature in advance, gives the function to control the number of valves, and sets the communication protocol of the controller period for serial connection. It is to provide a multifunctional temperature control device for hot water heating system that maintains the floor surface temperature and the indoor air temperature in a desired range in various forms required by the human body.

1 is a view showing a multifunctional temperature control apparatus for hot water ondol heating system according to an embodiment of the present invention.

Figure 2 is a detailed block diagram of the thermostat shown in FIG.

3 is a detailed block diagram of the calorie controller shown in FIG. 1.

Figure 4 is a view showing the room temperature change characteristics controlled by a conventional temperature control device.

5 is a view showing the room temperature change characteristics controlled by the multifunctional temperature control apparatus for hot water ondol heating system according to the present invention.

6 is a flow chart for explaining the operation of the multi-function temperature control device for the hot water ondol heating system shown in FIG.

7 shows an installation example of a conventional temperature control device.

8 is an example of installation of a temperature control device according to the present invention.

<Description of the symbols for the main parts of the drawings>

10 power supply, 12 calorie controller, 14 boiler or heat exchanger, 16 pump,

17 ... hot water header supply pipe, 18 ... hot water header return pipe,

FE1 to FE4 ... first to fourth flow rate detection unit, MV1 to MV4 ... first to fourth electric valve,

RC1 to RC4 ... first to fourth temperature controllers, RM1 to RM4 ... first to fourth heating hot water pipes,

TE0 ... inlet temperature detector, TE1 to TE4 ... first to fourth outlet temperature detector,

TE5 ... Ambient temperature detector.

In order to achieve the above object, the temperature control apparatus for hot water ondol heating system according to the present invention includes an indoor temperature detection unit for detecting an indoor temperature of each heating place, inputs and displays a temperature signal of the indoor temperature detection unit, and the user heats the heating device. One or more thermostats to set the shape; A temperature detector for detecting a temperature of heating hot water of the heating hot water pipe; At least one electric valve installed at a rear end of the heating hot water pipe to discharge or block heating hot water; At least one flow value correction unit for correcting a flow rate value of the heating hot water discharged from each heating hot water pipe; And calculating the amount of heat supplied to the heating hot water pipe based on the temperature value detected by the temperature detector and the flow rate value output from the flow rate value correction unit by inputting a valve opening signal output from the temperature controller. The calorie controller includes a calorific controller for outputting a valve control signal for controlling the respective electric valves according to a built-in program to perform heating based on the heating pattern set by the user according to the heat storage characteristic of the ondol. It supplies power to the thermostat, and searches the temperature difference (△ t) between the set temperature (t ₂ ) set in each thermostat and the current temperature (t ₁ ) of the room. The valve control signal is outputted to the electric valve so as to control the quantity of water, thereby controlling the temperature of each room. The calorific controller that opens and closes each electric valve has a time difference between the time at which the heating starts to be started (T ₂ ) and the time when the heating is stopped (T ₁ ). The longer the time difference ΔT by, the electric valve is operated so that the valve opening time is prolonged in proportion to the longer time difference (△ T), the calorific controller is also set to the set temperature (t ₂ ) and the current temperature of the room ( t ₁ ) to operate the electric valve intermittently by opening and closing the electric valve by the temperature difference △ t and the time difference between the start time of heating (T ₂ ) and the end time of heating (T ₁ ) (△ T). do.

The temperature detection unit preferably includes an inlet temperature detection unit for detecting a temperature of the heating hot water supplied to the heating hot water pipe and an outlet water temperature detection unit for detecting a temperature of the heating hot water discharged from the heating hot water pipe.

The calorie controller may include a display unit for displaying various states, a valve controller for outputting the valve control signal to the electric valve, a data storage unit for storing data, and a data controller for transmitting and receiving data. The interface unit and the outside temperature detector, the inlet temperature detector, the outlet temperature detector, and the output signal of the flow rate correction unit are inputted, and the temperature difference between the temperature detected by the inlet temperature detector and the outlet temperature detector is introduced into the heating water pipe. After calculating the amount of heat supplied to the heating hot water pipe according to the flow rate, according to the built-in program on the basis of the heating type set by the user according to the heat amount and the heat storage characteristics of the ondol and the outside air temperature detected by the outside air temperature detector. Control unit for controlling to output the valve control signal to the corresponding electric valve through the valve control unit To include preferred.

The calorific controller supplies power to each of the temperature controllers, and outputs a valve control signal to the electric valves to control the quantity by alternately operating a predetermined number of electric valves among the electric valves according to a predetermined program. It is preferable.

The temperature controller may further include an input unit for setting the indoor temperature, a display unit for displaying a heating state and various states, an indoor temperature detector for detecting an indoor temperature of the heating place, and the power controller from the calorie controller. And an interface unit for receiving a temperature and providing the temperature value detected by the indoor temperature detector to the calorific controller, and a controller for inputting and displaying a temperature value detected by the indoor temperature detector and outputting the valve opening signal through the interface unit. It is desirable to.

It is also preferred that at least one of the thermostats includes the function of controlling the heating of one or more other heating sites.

In addition, the calorie controller and the temperature controller is preferably connected in series.

In addition, the flow rate value correction unit generates a control signal from a flow rate detector for measuring the actual flow rate of the heating hot water and outputting a correction value or a flow rate value setting means for setting a flow rate value to be corrected or a stored flow rate correction value. It is preferable that it is either of a part.

Hereinafter, a multifunctional temperature control apparatus for hot water ondol heating system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a multifunctional temperature control apparatus for hot water ondol heating system according to a preferred embodiment of the present invention.

Referring to Figure 1, the multifunctional temperature control apparatus for hot water ondol heating system according to an embodiment of the present invention, the inlet temperature for detecting the temperature of the heating hot water supplied through the boiler or heat exchanger 14 and the pump 16 A first to fourth temperature controllers having a detection unit TE0 and an indoor temperature detection unit for detecting an indoor temperature of each heating place, inputting and displaying a temperature signal of the indoor temperature detection unit, and allowing a user to set a heating type ( RC1, ..., RC4 and the first to fourth electric valves (MV1) installed at the rear ends of the first to fourth heating hot water pipes (RM1, ..., RM4) for discharging or blocking the heating hot water, respectively. , ..., MV4) and the first to fourth discharge water temperature detection unit for detecting the temperature of the heating hot water discharged respectively installed after the first to fourth heating hot water pipes (RM1, ..., RM4) (TE1, ..., TE4) and the rear ends of the first to fourth heating water pipes (RM1, ..., RM4) and the first to fourth motors Flow rate correcting the flow rate value for detecting the flow rate of the heating hot water discharged from the first to fourth heating hot water pipes (RM1, ..., RM4) respectively provided between the valves (MV1, ..., MV4) Input and output temperature detection unit TE0 by inputting the output signals of the first to fourth flow rate detection units FE1, ..., FE4 and the first to fourth temperature controllers RC1, ..., RC4 serving as value correction means. ) And the flow rate detected by the first to fourth flow rate detection units FE1, ..., FE4 and the temperature difference between the temperatures detected by the first to fourth outlet temperature detection units TE1, ..., TE4. After calculating the amount of heat supplied to the first to fourth heating hot water pipes (RM1, ..., RM4), the built-in program to perform the heating based on the heating type set by the user according to the heat amount and the heat storage characteristics of the ondol And a calorific controller 12 for outputting a valve control signal for controlling the electric valve according to the present invention. Reference numeral 10 denotes an electric power for the calorific controller 12. A power supply for grade, the reference numeral 17 is a hot water supply pipe header, reference numeral 18 is a hot water return pipe header, TE5 is the outdoor temperature detector for detecting the external temperature.

The operation of the multifunctional temperature control apparatus for hot water ondol heating system according to the embodiment of the present invention configured as described above will be described with reference to FIG. 1.

When the user operates the first temperature controller RC1 to heat the place where the first temperature controller RC1 is installed, the first temperature controller RC1 outputs a valve opening signal in response to the first temperature controller RC1, and the first temperature controller The valve open signal output from RC1 is input to the calorie controller 12. The calorific value controller 12 may include the inlet temperature detector TE0 for detecting the temperature of the heated warm water and the first outlet temperature detector TE1 for detecting the temperature of the heated warm water discharged from the first heating hot water pipe RM1. Input the temperature signal and input the output of the first flow rate detection unit FE1, the temperature difference between the temperature detected by the inlet temperature detector TE0 and the first outlet water temperature detector TE1 and the flow rate flowing into the first heating hot water pipe. After calculating the amount of heat supplied to the first heating hot water pipe (RM1) according to the heat amount and the heat storage characteristics of the ondol and the outside air temperature detected by the outdoor temperature detection unit (TE5) based on the heating type set by the user By controlling the operation of the first electric valve (MV1) by outputting the valve control signal to the first electric valve (MV1) according to the built-in program it is possible to maintain the optimum floor temperature and the room air temperature.

In addition, when the user operates the first to fourth temperature controllers RC1, ..., RC4 to heat all the places where the first to fourth temperature controllers RC1, ..., RC4 are installed, the calorie controller In (12), four valve opening signals are input from the first to fourth temperature controllers RC1, ..., RC4. At this time, the calorific value controller 12 supplies heating hot water to the heating hot water pipe by operating two or less electric valves alternately without driving all of the first to fourth electric valves MV1, ..., MV4. Thus, the amount of heat is supplied according to the set temperature of the heating place.

That is, in the present embodiment, when the user wants to heat more than half of the heating place, the simultaneous load rate is halved because the electric valves of less than half are alternately operated without operating all the electric valves corresponding to the heating place. In this way, the capacity of the heating hot water supply facility can be greatly reduced, thereby increasing the utilization rate of the heating supply facility, and reducing the heat loss and power loss due to frequent shutdowns.

In addition, at least one controller of the first to fourth temperature controllers RC1, ..., RC4 controls the heating of not only the heating place but also at least one other heating place so that each heating place is not remodeled. It is possible to centrally control the heating control, and since the first to fourth temperature controllers RC1, ..., RC4 transmit and receive data by communication using the same signal line as the heat quantity controller 12, The connection of temperature control period can be installed in series, so it is easy to install, reduce the quantity of conduit and wire and reduce the construction cost.

Figure 2 is a detailed block diagram of the controller shown in Figure 1, the user input unit 22 for setting the room temperature, the display unit 24 for displaying the heating state and various conditions, and the room temperature of the heating place In the room temperature detector 28 for detecting, the interface unit 26 and the room temperature detector 26 which are supplied with power from the calorie controller 12 and provide the calorific controller 12 with the room temperature value and the valve open signal. A control unit 20 is provided which inputs the detected temperature value, displays it on the display unit 24, and outputs a valve opening signal through the interface unit 26.

3 is a detailed block diagram of the calorific controller 12 shown in FIG. 1, which includes a display unit 36 for displaying various states, a valve control unit 34 for outputting a valve control signal to the electric valve, A data storage unit 32 for storing data, an interface unit 31 for transmitting and receiving data to and from the temperature controller, an outside air temperature detector TE5, an inlet temperature detector TE0, and first to fourth outlet water temperature detectors TE1, ..., TE4) and the output signals of the first to fourth flow rate detection units FE1, ..., FE4 are inputted, and the temperature difference between the temperature detected by the inlet temperature detector TE0 and the corresponding outlet water temperature detector. After calculating the amount of heat supplied to the heating hot water pipe according to the flow rate flowing into the heating hot water pipe, the heating type set by the user according to the heat amount and the heat storage characteristics of the ondol and the outside air temperature detected by the outside temperature detection unit (TE5) Valve control signal according to the built-in program And a control section 30 which controls via a 34 to output to the electric valve.

In controlling the opening and closing of the first to fourth electric valves MV1, ..., MV4 by the controller 30, the time when the heating is stopped and the time when the heating is started, that is, the time during the heating stop period. The temperature difference (Δt) between AT and the set temperature and the present temperature is calculated, and the longer the heating priority period, the longer the opening time of the electric valve.

In the conventional temperature control method, the water supply valve is opened until the set temperature is reached by the controller, and when the room temperature detected by the indoor temperature detector reaches the temperature set in the temperature controller, the water supply valve is closed to supply hot water. You can see it stopped.

In this case, even if the hot water supply is stopped by the heat storage function of the ondol, the room temperature rises above the set temperature, and thus energy waste and accurate temperature setting cannot be made. In view of this, the present invention does not allow the temperature valve to be opened continuously until the set temperature is reached, but in consideration of the heat storage amount of the ondol, the valve is periodically opened and closed for a predetermined time so that the room temperature reaches the set temperature. The valve is shut off completely to maintain the set temperature accurately.

Thus, in opening and closing the hot water valve intermittently, in the present invention, based on the temperature difference between the current temperature and the set temperature, in particular, the stop period from the last closing time of the hot water valve to the present time is calculated, The longer the valve is, the longer the valve opening time is, and the shorter the valve closing time is, thereby preventing the thermal energy stored in the ondol from accumulating higher than the set temperature and reaching the set temperature at a faster time.

4 is a view showing the room temperature change characteristics controlled by a conventional temperature control device, Figure 5 is a view showing the room temperature change characteristics controlled by a multi-function temperature control device for hot water ondol heating system according to the present invention. .

As shown in FIG. 4, the conventional temperature control device stops heating at a time when the temperature rises above the room temperature or the floor surface, so that the indoor temperature or the floor surface temperature is considerably lower than the set temperature due to the heat storage of the ondol. B) Floor surface temperature rises or falls irregularly. However, as shown in Figure 5, the multi-function temperature control device for hot water ondol heating system according to the present invention by calculating the amount of heat and heat storage supplied to the ondol purge control to the actual room temperature and floor surface temperature to the optimum temperature Will be adjusted.

That is, as shown in Fig. 5-A, the opening time of the hot water valve at the time of heating is actually different from the current temperature t ₂ , the set temperature t _1, and the time at which the heating is stopped T ₁ and the current time T ₂ . Combining the heating stop time ΔT when the opening and closing time of the heating hot water valve is set periodically, the temperature can be adjusted close to the set temperature.

6 is a flow chart for explaining in detail the operation of each function of the multi-function temperature control apparatus for hot water ondol heating system according to an embodiment of the present invention shown in FIG.

Referring to FIG. 6, the multifunctional temperature control apparatus for hot water heating system according to the present invention is displayed after initial values such as a room number, a current temperature, a set temperature, an outside temperature, a valve open state, and the like are set in step 60.

In step 64, it is determined whether the outing function is selected. In step 66, when it is determined that the outing function is selected in step 64, the set temperature is set to 5 deg. In step 68, it is determined whether the room temperature is lower than the set temperature. In step 70, when the room temperature is determined to be lower than the set temperature in step 68, 1 is added to the number of valves that are currently open to determine whether the total number of valves to be opened is less than the predetermined number of valves. In step 72, if it is determined in step 70 that the total number of valves to be opened is less than the predetermined number of valves, the valve returns to step 60 after opening the valve. In step 74, if it is determined in step 70 that the total number of valves to be opened is equal to or greater than the predetermined number of valves, the predetermined time is waited. In step 76, the initial opening valve is shut off, and the flow proceeds to step 72. In step 78, if the room temperature is above the set temperature in step 68, the valve is closed and then the process returns to step 60.

In step 80, if it is determined in step 64 that the out function is not selected, it is determined whether the purge function is turned on. In step 82, if it is determined in step 80 that the purge function is turned on, it is determined whether an activity or sleep function is selected. In step 84, when it is determined in step 82 that the active function is selected, the inlet temperature, the outlet temperature, and the flow rate are detected. In step 86, the input calorific value is calculated based on the intake temperature, the outlet temperature and the flow rate detected in step 84. In step 88, the indoor air temperature is predicted and stored as the value of the variable AT. In step 90, the value of the variable AT is set to the room temperature, and the flow proceeds to step 68.

In step 92, when it is determined in step 82 that the sleep function is selected, the inlet temperature, the outlet temperature, and the flow rate are detected. In step 94, the heat storage amount of the floor structure is calculated based on the inlet temperature, the outlet temperature, and the flow rate detected in step 92. In step 96, the floor surface temperature is predicted and stored as the value of the variable BT. In step 98, the value of the variable BT is set to the room temperature, and the flow proceeds to step 68.

In step 100, when it is determined in step 80 that the purge function is turned off, it is determined whether the activity or sleep function is selected. In step 102, when it is determined in step 100 that the activity function is selected, the indoor air temperature is detected. In step 104, the indoor air temperature detected in step 102 is set to the room temperature, and then the process proceeds to step 68. On the other hand, in step 106, when it is determined in step 100 that the sleep function is selected, the water exit temperature is detected. In step 108, the water output temperature detected in step 106 is set to the room temperature, and then the process proceeds to step 68.

As described above, the multifunctional temperature control apparatus for hot water ondol heating system according to the present invention may perform heating in various heating forms according to a user's selection.

So far, the most preferred embodiment of the present invention has been described as using the flow rate detectors that actually detect the flow rate as the flow rate value correction means, but the present invention is not limited thereto, but the variable for setting the flow rate value to be corrected as the flow rate value correction means. It is also possible to use an electronic circuit or program such as resistors or to use a calibration control signal generator that generates a calibration control signal from the stored flow compensation value.

7 is a view showing an installation example of a conventional temperature control device, wherein the temperature controllers of each room are individually connected to the calorific controller. On the other hand, Figure 8 is a view showing an installation example of the temperature control device according to the present invention, the temperature controller of each room is connected in series with the calorie controller can reduce the length of the entire wire path than when installing a conventional temperature control device .

As described above, the multifunctional temperature control apparatus for hot water heating system according to the present invention is based on the heat quantity and heat storage characteristics of the ondol according to the temperature difference between the temperature of the heating hot water supplied to the heating hot water pipe and the heating hot water discharged from the heating hot water pipe. By controlling the electric valve, it is possible to precisely adjust the room temperature to the set temperature and to control the room temperature by various heating forms. By controlling the electric valve to operate alternately, the capacity of the hot water supply facility is reduced by lowering the simultaneous load rate. You can. In addition, in the installation method of the thermostat can be installed by connecting the heat controller and the thermostat in series there is an advantage that can reduce the amount of conduit and the wire, the construction cost can be reduced.

Claims (3)

At least one temperature controller having an indoor temperature detector for detecting a room temperature of each heating place, inputting and displaying a temperature signal of the indoor temperature detector, and allowing a user to set a heating type; A temperature detector for detecting a temperature of heating hot water of the heating hot water pipe; At least one electric valve installed at a rear end of the heating hot water pipe to discharge or block heating hot water; At least one flow value correction unit for correcting a flow rate value of the heating hot water discharged from each heating hot water pipe; And calculating the amount of heat supplied to the heating hot water pipe based on the temperature value detected by the temperature detector and the flow rate value output from the flow rate value correction unit by inputting a valve opening signal output from the temperature controller. Multifunctional for hot water ondol heating system including a calorific controller for outputting a valve control signal for controlling each electric valve according to a built-in program to perform heating based on the heating type set by the user according to the heat storage characteristics of the ondol In the temperature control device, the calorific value controller supplies power to the temperature controller, and the corresponding electric valve is controlled by a temperature difference Δt between a set temperature t ₂ set at each temperature controller and a current temperature t _{1 of a} room. It is characterized by outputting a valve control signal to the electric valve so as to control the quantity of water by alternately operating the electric valve in the The hot water temperature control system for a multi-floor heating system heating. The method of claim 1, wherein the heat quantity controller that opens and closes the electric valve is a time difference (△ T) of the heating time during activates ever intermittently opening and closing the electric valve, the time T ₂ and the stopped time (T ₁₎ heating is heating the starting The multi-functional temperature control device for hot water heating system, characterized in that the longer the time difference (△ T) by the longer the valve opening time in proportion to this. The calorific value controller of claim 1, wherein the calorific value controller has a temperature difference Δt between a set temperature t ₂ set at each temperature controller, a current temperature t _{1 of a} room, a time at which heating starts (T ₂ ), and a time at which heating is finished. A multifunctional temperature controller for hot water ondol heating system, characterized in that the electric valve is intermittently opened and closed by a time difference ΔT of (T ₁ ).