KR100767430B1 - Method for controlling heat of heating system - Google Patents

Abstract

A method for controlling heating of a heating system is provided to simplify the embodiment of the entire heating system by removing a minute valve separately mounted to achieve uniform heating. A method for controlling heating of a heating system includes the steps of: storing the lengths of pipes in chambers in a memory(S103); determining the amount of heating flow by considering the lengths of the pipes in the chambers and the set temperature if the operation of the heating system is requested for and the temperatures of the chambers are set(S109); and controlling the amount of flow in the chambers by controlling the drive of electronic valves for controlling the flow formed at a heating pipe inlet in correspondence to the determined heating flow amount(S111).

Description

Method for controlling heat of heating system

1 is a block diagram showing a schematic configuration of a heating system to which a heating control method according to the present invention is applied.

Figure 2 is a flow chart showing a first embodiment of a heating control method of a heating system according to the present invention.

Figure 3 is a flow chart showing a second embodiment of the heating control method of the heating system according to the present invention.

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

120... Keypad

130... Central Processing Unit

140... Display

150... Memory

160... Return temperature detector

170... Electronic valve driver

The present invention relates to a heating system, and more particularly, to a heating control method of a heating system to achieve uniform heating in an individual heating system.

More specifically, after installation of the heating system (individual heating system), heating piping (pipes of each room (eg, room 1, room 2, room 3, ... room n, living room, kitchen, etc.) ) Set the length and supply the heating flow rate of each room differently considering the heating pipe length of each room in the future heating operation so that each room is uniformly heated (reach the set temperature at about the same time when the setting temperature is the same) It relates to a heating control method of a heating system so that this can be done.

In general, a heating system uses a boiler to burn fuel to heat water, and the heated water (heating water) is passed through heating pipes (pipes) spread in various rooms or living rooms in the room, or heating is performed. It is made available. Initially, the heating of each room or living room has been controlled to control the flow rate by manually controlling or opening the valve of each room installed in the distributor.However, in recent years, the actuator operated by the operation command of the control unit is attached to the valve to An automatic temperature system has been introduced to enable automatic opening and closing of valves by operation.

On the other hand, the heating time (time to reach the set temperature) varies depending on the length of the pipe laid on the floor, and relatively small room is heated faster than the room or the living room, which is usually installed in the room or living room. This is because the pipes laid in a room smaller than the pipes have shorter lengths, so the circulation of the heating water is faster.

As a result, when operating the boiler, an unbalanced heating phenomenon occurs in which each room or living room cannot be heated together.

Accordingly, in recent years, in order to eliminate such heating imbalance, a method has been proposed in which a plurality of fine valves (flow valves) are mounted at the rear of the distributor and the installer adjusts the valve in consideration of the size of each chamber.

The microvalve (flow valve) is a flow control valve that can control the amount of water passing through the valve by the user (or installer), usually, the heating water can pass if the length of the pipe, such as a living room or living room The flow rate of the heating water supplied to the pipes of each room has been balanced by heating a large number of holes, and a small room with a relatively short pipe length.

However, when the length of the heating pipe is long, the supply of heating water to the room or the living room, which flows a lot of heating water, is closed, and the heating valve is supplied only to a small room where the heating pipe is short and the water is flowing less. While the flow rate of the heating water flowing in is large, the flow rate of the heating water passing through the flow valve is small, so that an excessive pressure difference occurs between them.

When excessive pressure difference occurs between the input and output of the flow valve, the boiler is overloaded and the boiler is repeatedly turned off and on, and the abnormality is reduced, and the efficiency of the heating water is reduced. There was a problem of creating a discomfort by passing through a flow valve having a small discharge hole in advance to send a small flow rate and making a lot of noise.

In addition, according to the separate installation of a plurality of fine valves (usually, about 3 to 10), there is a problem in that the installation structure is complicated and economical waste occurs.

Accordingly, the present invention is proposed to solve the conventional problems as described above,

The purpose is to provide a heating control method for a heating system in which uniform heating is performed in an individual heating system.

Another object of the present invention is the heating piping of each room (for example, room 1, room 2, room 3, ... room n, living room, kitchen, etc.) after installation of the heating system (individual heating system). By setting the (pipe) length and supplying the heating flow rate of each room in consideration of the heating pipe length of each room in the future heating operation, it is possible to ensure that each room reaches the set temperature at about the same time when the set temperature is the same. ) Is to provide a heating control method of a heating system to enable heating.

Another object of the present invention is to eliminate the microvalve mounted to eliminate the existing heating imbalance, thereby simplifying the implementation of the entire heating system and to prevent the economic loss caused by the separate installation of the microvalve. It is to provide a heating control method of the heating system.

"Heating control method of a heating system" according to the present invention for achieving the above object,

When the pipe length of each room is input by the installer after the heating system is installed, it is stored in the memory, and when the heating system is requested by the user later and the set temperature is set, the pipe of each room stored in the memory The heating flow rate is determined by considering the length and the set temperature. Thereafter, after driving the boiler, by controlling the driving of the flow control electronic valve installed in the heating pipe inlet of each room in response to the determined heating flow rate by adjusting the flow rate of each room, to realize a uniform heating.

Here, it is preferable to adjust the flow rate by varying the driving time (opening / closing operation) time of the electronic valve for changing the flow rate or changing the driving period thereof.

In addition, when assuming that the set temperature of each chamber is the same, it is preferable to determine a heating flow volume so that the longer the piping length, the more the flow volume supplied per unit time will become.

In addition, when determining the heating flow rate, the heating flow rate is calculated in advance in consideration of the pipe length and the set temperature of each chamber, and stored in the memory in the form of a look-up table, and the heating flow rate is immediately determined from the look-up table when the set temperature is determined. It is desirable to perform the determination and control of the heating flow rate in real time by extracting.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention. Before describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram showing a schematic configuration of a heating system to which a heating control method according to the present invention is applied. Reference numeral 110 denotes a rectified input AC power to make a DC voltage, and the generated DC voltage is a predetermined DC voltage. The power supply unit converts again to supply power for driving to a portion requiring power. Preferably, the power supply unit 110 includes a bridge diode for generating a DC voltage by full-wave rectifying AC power, a DC-DC converter for converting the DC voltage generated by the bridge diode back to a predetermined DC voltage, and a Zener for making the converted DC voltage constant. Constant voltage devices such as diodes, and the like.

Reference numeral 120 denotes a keypad for inputting the length of heating pipes (heating pipes) of each chamber, and includes a numeric key of 0 to 9 and a function key for inputting a function, and reference numeral 130 denotes a central processing unit. The overall operation of the apparatus is controlled so that the function selected from the keypad 120 is achieved, and the pipe length (heating pipe) of each chamber input from the keypad 120 is received and stored in the memory (EEPROM) 150 and the user. When the set temperature is determined by the temperature, the heating water supply flow rate for each room in consideration of the pipe length of each room stored in the memory 150 and the return temperature for each room detected through the set temperature and the return temperature detection unit 160. Set the controller and generate an electronic valve control signal to control the flow rate of heating water supplied to each room according to the set flow rate, and display the pipe length of each room input by the installer on the screen. It denotes a central processing unit for controlling.

In addition, the reference numeral 140 denotes a display unit for displaying each chamber according to a display control signal output from the central processing unit 130 or displaying the pipe length of each chamber so that the installer can know the liquid crystal display (LCD). use.

In addition, the reference numeral 160 is a return temperature detector for measuring the return temperature when the heating water for heating is returned to the boiler after passing through the piping hose of each chamber, it is preferable to include a return temperature detection sensor for each room , Reference numeral 170 denotes an electronic valve driver for controlling the driving of the electronic valves 181 to 181 + n for controlling the flow rate of the heating water supplied to each of the chambers (first to nth chambers) 191 to 191 + n. to be. Here, the electronic sides 181 to 181 + n may use electronic sides whose driving is controlled by an on / off method, or may use electronic sides whose opening degree is adjustable.

In the heating system to which the heating control method according to the present invention configured as described above is applied, first, the installer turns on the power switch when the installation of the heating system is completed, and accordingly rectifies the commercial AC power input from the power supply unit 110 to direct current. The voltage is made, and the generated DC voltage is converted back to a predetermined DC voltage to supply driving power to a part requiring a power supply (for example, a central processing unit, a display unit, an electronic valve driver, and the like). Here, the power supply unit 110 includes a bridge diode for full-wave rectifying AC power to a DC voltage, a DC-DC converter for converting a DC voltage generated by the bridge diode back to a predetermined DC voltage, and a Zener diode for converting the converted DC voltage to a constant voltage. It is preferable to include a constant voltage device such as.

The central processing unit 130 is activated when the power is supplied, and controls the entire operation of the heating system according to a function selected through the keypad 120.

Here, the heating system heats the heating water supplied through the water supply pipe in conjunction with the regulator and the controller that controls the heating system so that the temperature is reached when the user sets the temperature, and supplies the heating to each room. It is a generic name that includes a boiler for reheating the water and a flow control valve (electronic valve, other valve) provided between the boiler and each chamber. The object of the present invention is a regulator and a flow rate except for the boiler in such a heating system. This is the part for the regulating valve. And the boiler will be described assuming that the boiler applied to the general heating system as it is.

The installer inputs the length of the heating pipe of each chamber through the keypad 120 while the regulator system is powered. Here, in the case of an apartment, the pipe length of each room is recorded so that the pipe length of each room can be easily input. For the input method, for example, select a room (the first room), enter the pipe length (for example, 120m) using the numeric keys, select the small room 1 (the second room), and select the pipe length (for example, For example, enter 60m) using the numeric keys, select small room 2 (third room), enter the pipe length (for example, 60m) using the numeric keys, and select the living room (fourth room). And the pipe length (for example, 120m) by using the numeric keys to enter the pipe length of each room. Here, it will be apparent to those skilled in the art that the pipe length of each thread is different depending on the size of each thread, so that the above-described pipe length is merely one example.

In addition, since the selected thread and the pipe length are displayed on the display unit (LCD) 140, the installer can easily identify whether the selected thread and the pipe length to be input are correct.

When the thread is selected and the pipe length is input, the pipe length of each thread is stored in the memory 150 under the control of the central processing unit 130. After that, when the user sets the temperature, the central processing unit 130 sets the temperature. The optimum heating water flow rate is determined in consideration of the pipe length and the set temperature of each chamber. Here, the method of determining the heating water will be described in detail in the heating control method (first embodiment and second embodiment) of the present invention described later.

When the heating water flow rate is determined, the central processing unit 130 controls the electronic valve driving unit 170 to control the driving of the electronic valves 181 to 181 + n connected to the front end of the heating water inlet pipe of each chamber to be introduced into each chamber. By controlling the flow rate of the heating water, uniform heating is achieved for each room. That is, the heating flow rate for each room is controlled according to the length of the heating pipe and the set temperature so that the temperature rises uniformly.

<Example 1>

2 is a flowchart showing a first embodiment of a heating control method of a heating system according to the present invention.

As shown in the figure, after the heating system is installed, the installer checks whether the pipe length of each chamber is input by the installer (S101), and when the pipe length of each chamber is input, storing it in a memory (S103) and Confirming whether the operation of the heating system is requested (S105); checking whether the set temperature of each room is input after the operation of the heating system is requested (S107); If is input to determine the heating flow rate in consideration of the pipe length and the set temperature of each room stored in the memory (S109), the flow rate control electronics formed between the distributor and the heating pipe of each room corresponding to the determined heating flow rate Controlling the driving of the sides to adjust the flow rate of each chamber to perform a uniform heating (S111).

The first embodiment of the heating control method of the heating system according to the present invention as described above first checks whether the pipe length of each chamber is input after the heating system is installed by the installer in step S101. When the pipe length of each chamber is input as a result of this checking, the flow advances to step S103 to store the pipe length of each chamber to be input into the memory 150.

When the pipe length of each chamber is stored in the memory 150, when the heating system is turned on as in step S105 and the temperature of each chamber is set by the user as in step S107, step S109 In the central processing unit 130 is to determine the heating flow rate for each room.

If this is explained in more detail as follows.

For example, assuming that the temperature of each chamber is set equal to 20 ° C., the pipe length of the first chamber 191 is the longest as 120 m, and the living room which is the fourth chamber is also the same as the first chamber 191. Ensure maximum supply flow. In addition, since the pipe lengths of the second chamber 192 and the third chamber 193 are about 1/2 of those of the main room and the living room, the flow rate is set to be 1/2 of the flow rate supplied to the main room and the living room. . Of course, if the temperature of each chamber is different, the pipe length and the set temperature are taken into consideration, so even if the length of the pipe is the same, it is obvious that the heating water supply flow rate of each chamber should also be changed according to the set temperature.

In this way, when the supply flow rate is set in consideration of the pipe length and the set temperature, the flow rate flowing into each chamber is controlled by controlling the electromagnetic valve driving unit 170 in step S111.

Here, the driving (opening / closing operation) of the electronic valve for adjusting the flow rate may be performed by varying the driving time or changing the driving time and driving cycle, and adjusting the flow rate.

For example, if the electronic valve is turned on / off, the first and fourth rooms control the electronic valve to have an on time of 2 minutes and 30 seconds when the electronic valve has an on time of 5 minutes. . When the on / off time of the electronic valve is controlled in this way, the flow rate supplied to each chamber is changed, and thus the temperature increase rate is adjusted according to the pipe length of each chamber, thereby enabling uniform heating regardless of the size of each chamber.

Alternatively, the driving frequency of the electronic valves may be changed to change the heating water supply flow rate of each chamber. For example, if the first and fourth chambers turn on the electron valves in units of three minutes, and the second and third chambers turn on the electron valves in units of six minutes, the flow rate supplied per unit time is different. As a result, the rate of temperature rise is adjusted to enable uniform heating regardless of the size of each chamber.

In this case, the temperature of each chamber is determined by using the return temperature detected by the return temperature detecting unit 160, and the temperature control is performed by comparing the set temperature with the set temperature. Detailed description is omitted.

Example 2

3 is a flowchart illustrating a second embodiment of a heating control method of a heating system according to the present invention.

As shown in the drawing, after the heating system is installed, the installer checks whether the pipe length of each chamber is input by the installer (S201), and if the pipe length of each chamber is input, storing the same in the memory (S203) and Determining a heating flow rate of each room in consideration of the input pipe length and the set temperature of each room (S205), and the heating flow rate of each room according to the set temperature to make a look-up table to store in the memory Step S207, checking whether the operation of the heating system is requested (S209), checking whether the set temperature of each room is input after the operation of the heating system is requested (S211), and the checking result When the set temperature of each chamber is input, extracting the flow rate for each chamber through the look-up table stored in the memory (S213), and controlling the flow rate flowing into each chamber corresponding to the extracted flow rate (S215). )

According to the second embodiment of the heating control method of the heating system according to the present invention, the heating system is installed by the installer in step S201 and then the pipe length of each chamber is checked. When the pipe length of each chamber is input as a result of this checking, the flow advances to step S203 to store the pipe length of each chamber to be input into the memory 150.

With the pipe length of each chamber stored in the memory 150, the heating flow rate for each chamber is determined as in step S205.

If this is explained in more detail as follows.

For example, assuming that the temperature of each chamber is set equal to 20 ° C., the pipe length of the first chamber 191 is the longest as 120 m, and the living room which is the fourth chamber is also the same as the first chamber 191. Ensure maximum supply flow. In addition, since the pipe lengths of the second chamber 192 and the third chamber 193 are about 1/2 of those of the main room and the living room, the flow rate is set to be 1/2 of the flow rate supplied to the main room and the living room. . Of course, if the temperature of each chamber is different, the pipe length and the set temperature are taken into consideration, so even if the pipe length is the same, it is obvious that the heating water supply flow rate of each room also needs to be changed according to the set temperature.

After the supply flow rate is set in consideration of the pipe length and the set temperature in this way, in step S207, the heating water supply flow rate according to the actual setting temperature of each room is made in the form of a look-up table and stored in the memory 150. Here, if the heating water supply flow rate is set in advance in the form of a look-up table for each room / setting temperature, if the user sets only the temperature in the future heating system operation, the heating water supply flow rate can be extracted directly from the memory to control the heating quickly. There are advantages to it.

On the other hand, in the state where the heating water supply flow rate is created and stored as a look-up table, when the driving of the heating system is turned on as in step S209, and the temperature of each chamber is set by the user as in step S211, In step S213, the central processing unit 130 extracts the heating water supply flow rate data according to each room set temperature stored in the memory. In step S215, the electronic valve is controlled to correspond to the extracted heating water supply flow rate. It is to control the flow rate of the heating water supplied to each chamber.

Here, the driving (opening / closing operation) of the electronic valve for adjusting the flow rate may be performed by varying the driving time or changing the driving time and driving cycle, and adjusting the flow rate.

For example, if the electronic valve is turned on / off, the first and fourth rooms control the electronic valve to have an on time of 2 minutes and 30 seconds when the electronic valve has an on time of 5 minutes. . When the on / off time of the electronic valve is controlled in this way, the flow rate supplied to each chamber is changed, and thus the temperature increase rate is adjusted according to the pipe length of each chamber, thereby enabling uniform heating regardless of the size of each chamber.

Alternatively, the driving frequency of the electronic valves may be changed to change the heating water supply flow rate of each chamber. For example, if the first and fourth chambers turn on the electron valves in units of three minutes, and the second and third chambers turn on the electron valves in units of six minutes, the flow rate supplied per unit time is different. As a result, the rate of temperature rise is adjusted to enable uniform heating regardless of the size of each chamber.

In this case, the temperature of each chamber is determined by using the return temperature detected by the return temperature detecting unit 160, and the temperature control is performed by comparing the set temperature with the set temperature. Detailed description will be omitted.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

According to the present invention as described above, after the installation of the heating system (individual heating system) to set the length of the heating pipe (pipe) of each room, the heating flow rate of each room in consideration of the heating pipe length of each room in the future heating operation By controlling the temperature, each chamber is uniformly heated (to reach the set temperature at about the same time when the set temperature is the same).

In addition, the present invention can remove the micro-valve mounted separately to solve the heating imbalance in the existing heating system, it is possible to simplify the implementation of the entire heating system, and economical loss caused by the separate installation of the micro-valve There is also an advantage that can be prevented.

Claims (10)

In the heating control method of the heating system (individual heating system), A first step of storing a pipe length of each room by the installer after the heating system is installed, and storing the same in a memory; A second step of determining a heating flow rate in consideration of a pipe length and a set temperature of each chamber stored in the memory, when the heating system is requested by the user and the set temperature of each chamber is set; And a third step of controlling the flow rate of each chamber by controlling the driving of the flow control electronic valve formed at the heating pipe inlet of each chamber in response to the determined heating flow rate. The heating control method of a heating system according to claim 1, wherein in the determination of the heating flow rate in the second step, the heating flow rate is determined so that the longer the pipe length is, the more the flow rate is supplied per unit time. 2. The heating of the heating system according to claim 1, wherein the determination of the heating flow rate in the second step is to determine the heating flow rate so that the temperature rise rate of each room is the same regardless of the size of each room and the pipe length. Control method. The heating control method of claim 1, wherein the third flow rate control is performed by varying the driving time of the electronic valve (opening / closing operation). The heating control method of claim 1, wherein the third step is to adjust the flow rate by changing a driving (opening / closing operation) period of the electronic valve. In the heating control method of the heating system (individual heating system), A first step of storing a pipe length of each room by the installer after the heating system is installed, and storing the same in a memory; A second step of pre-determining a heating flow rate in consideration of a pipe length and a set temperature of each chamber, making a look-up table, and storing it in the memory; A third step of extracting a flow rate for each room from a look-up table stored in the memory, when a heating system is requested by a user and a set temperature of each room is set; And a fourth step of controlling the flow rate of each chamber by controlling the driving of the flow control electronic valve formed at the heating pipe inlet of each chamber in correspondence with the extracted heating flow rate. The heating control method of a heating system according to claim 6, wherein in the determination of the heating flow rate in the second step, the heating flow rate is determined such that the longer the pipe length is, the more the flow rate is supplied per unit time. 7. The heating control of the heating system according to claim 6, wherein the determination of the heating flow rate in the second step determines the heating flow rate so that the temperature increase rate of each room is the same regardless of the size of each room and the pipe length. Way. 7. The heating control method of claim 6, wherein the flow rate adjustment of the fourth step is performed by varying the driving time of the electronic valve (opening / closing operation). 7. The heating control method of claim 6, wherein the flow rate adjustment in the fourth step is performed by varying a period of driving (opening / closing operation) of the electronic valve.

Images