JP3676847B2 - Method and apparatus for operating hot water heater - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an operation method and an apparatus for a hot water heater.
[0002]
[Prior art]
FIG. 2 shows an example of a heating device that supplies hot water from one heat source device to a plurality of terminals (fan convectors and floor heating devices). In FIG. 2, 1 is a heat source machine capable of hot (about 80 ° C.) hot water and low temperature (about 60 ° C.) hot water, 2 is a hot hot water hot water header, 3 is a low temperature hot water hot water header, and 4 is a heat exchanger inside. Fan con vector (air conditioner) incorporating a fan, 5 is a hot water pipe connecting the hot hot water hot water header 2 and the fan con vector 4, 6 is a hot water mat (floor heater), 7 is the low temperature hot water hot water header 3 and hot water mat. 6 is a floor heating controller, 8 is a floor heating controller, 9 and 9a are communication lines, and 10 is an operation control circuit. In the case of the above heating apparatus, when there are a plurality of fan con vectors 4, For example, hot water of 80 ° C. is uniformly supplied, and even when there are a plurality of hot water mats 6, hot water of 60 ° C. is uniformly supplied to all the hot water mats 6. That.
[0003]
[Problems to be solved by the invention]
For this reason, in the case of the conventional heating apparatus, there exist the following faults.
For example, in the case of floor heating, the load on each terminal varies depending on various factors such as the outside air temperature of the day, the amount of solar radiation, indoor lighting, and the number of people in the room, but in the conventional uniform hot water supply method, the floor heating load is Even if it is small, if more hot water than necessary is supplied and the load is large, the amount of hot water is insufficient and sufficient capacity cannot be obtained.
[0004]
[Means for Solving the Problems]
The object of the present invention is to solve the above-mentioned problems, and the configuration thereof is as follows.
[0005]
1. In a heating system that supplies hot water in parallel from a single heat source unit to multiple terminals, the room temperature or floor temperature at which each terminal is installed and the time from when the operation was started independently The temperature until the room temperature or the bed temperature is detected in a time series to determine the rate of temperature increase for each terminal, and when multiple terminals are operated simultaneously, the rate of increase of each terminal is compared and increased. A method of operating a hot water heating apparatus that controls the amount of hot water supplied to a terminal with a small rate to be increased as compared with a terminal with a large rate of increase .
[0006]
2. One heat source unit that supplies hot water to multiple terminals in parallel,
Temperature detection means for detecting the room temperature or floor temperature from the time when the operation is started independently for each terminal to a certain time; and
Storage means for detecting the rising temperature detected by the temperature detecting means in time series to obtain the rising rate, and storing this;
When multiple terminals are operated at the same time, the rate of increase of each terminal is compared, and the amount of hot water supplied to the terminal with a small increase rate is increased compared to the terminal with a large increase rate . Computing means for computing the amount of hot water supplied;
Hot water control means for controlling the amount of hot water supplied based on the amount of hot water supplied to each terminal calculated by the calculating means;
An operation device for a hot water heating device.
[ 0007 ]
The present invention having the above configuration is based on the following concept.
If all the terminals are stopped and floor heating 1 (hot water mat 1) and floor heating 2 (hot water mat 2) are started up at the same time,
Q1 / PL1 = Q2 / PL2
What is necessary is just to distribute the flow rate of warm water so that.
In addition, when the priority is floor heating 1> floor heating 2 based on user settings or control conditions,
Q1 / PL1> Q2 / PL2
Distribute the hot water flow rate so that Note that PL1 and PL2 can be input by a manufacturer or a contractor at the time of design or construction.
Heating load at this time (Q1, Q2) is also the a necessary for obtaining the distribution ratio of the hot water, then heating load shall be determined at a temperature increase rate of each terminal.
[ 0008 ]
As an example of how to obtain the temperature rise rate of each terminal, there is the following method. About floor heating 1 (warm water mat 1) and floor heating 2 (warm water mat 2), 80 degreeC warm water is circulated for 15 minutes from the start of each independent operation, and the rise in the temperature of the floor during that time is memorized. Then, the rate of increase in the respective temperatures is calculated from the temperatures of the floor heating 1 and the floor heating 2 after 15 minutes, and the floor heating 1 and the floor heating 2 are operated simultaneously based on this value. If hot water is distributed, warm water is distributed while considering which of these operations should be prioritized. In this case, as a method of determining the priority,
-The user inputs through the controller section.
-Judgment is based on the room temperature (or floor temperature) at the start of operation of floor heating 2.
· Floor heating 2 operation starting at room temperature (or floor temperature), and the like increase rate at room temperature (or floor temperature), and whether it is above a certain level the rate of temperature rise of floor heating 2, the user set temperature Considering the above, it is determined whether to give priority to the rise of floor heating 2.
Various methods are conceivable. By doing so, it is possible to prevent a phenomenon in which hot water more than necessary is supplied to the floor heating 1 and the floor heating 2 cannot perform sufficiently when the operation starts thereafter.
[ 0009 ]
In addition, if the temperature of the target room or the target hot water can be detected for the fancon vector and bath remedy piping, etc., the load is calculated when operated alone, and it is necessary for the fancon vector and remedy piping. It is possible to supply only the amount of warm water.
This control method is particularly effective when the simultaneous usage rate of each terminal device is high.
[ 0010 ]
[Action]
When the terminal has already been operated and the terminal is newly started, the operation control means uses the FF method to supply the amount of hot water supplied based on the ease of warming the room or floor where each terminal is installed. you control. If the terminal has already been operated and the operation of the terminal is newly started, the operation control means calculates the amount of hot water to be supplied on the basis of the rate of increase in the temperature of the room or floor where each terminal is installed. in that control.
[ 0011 ]
【Example】
FIG. 1 shows an embodiment of the present invention, in which 20 is a heat source device for supplying hot water of about 80 ° C., 21 is a hot water header, 22 is a control valve attached to a connection port 23 of the hot water header 21, and 24 is An air conditioner (terminal unit), 25 and 25a are hot water mats for floor heating, 26 is a memorial bathtub, and 27 is a memorial bath. To the air conditioner 24, hot water mats 25 and 25a, and a memorial bath 27 Are each supplied with hot water of about 80 ° C. The heat source unit 20 may be of a high temperature (about 80 ° C.) hot water source and a low temperature (about 60 ° C.) hot water source system in addition to the high temperature hot water source system of about 80 ° C. as in the above embodiment.
Reference numeral 28 denotes an operation controller. The operation controller 28 has the following configuration and operation example.
[ 0012 ]
As a configuration , temperature detecting means for detecting the room temperature of the room in which each terminal is installed, and temperature detecting means for detecting the room temperature or the floor temperature from the time when the operation is started independently for each terminal to a certain time, and , Detecting the rising temperature detected by the temperature detecting means in a time series to obtain the rising rate, storing the rising rate, and storing each of the rising rates based on the rising rate of the temperature stored in the storing unit a calculating means for calculating a supply amount of hot water, and hot water control means for controlling the amount of hot water supply based on the supply of hot water to each terminal calculated by the calculating means consist of.
[ 0013 ]
This control detects the temperature or floor temperature at which the terminal is installed for each terminal and the temperature from when the operation is started independently until the constant room temperature or floor temperature is reached in time series. When a plurality of terminals are operated simultaneously, the amount of hot water supplied to each terminal is controlled by the control valve 22 according to the increase rate.
[ 0014 ]
【The invention's effect】
The present invention, as described above, when a plurality of terminals are operated at the same time, since the amount of hot water supplied from the increase rate of each chamber or bed temperature was set to be controlled by FF scheme, heating according to the heating load You can drive. Therefore, there is no excess or shortage of heating or wasted energy.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an explanatory diagram of a hot water heating apparatus and an operation method thereof according to the present invention.
FIG. 2 is an explanatory diagram of a conventional hot water heating device and its operation method.
[Explanation of symbols]
20 Heat source machine 21 Hot water header 22 Control valve 23 Connection port 24 Air conditioner (terminal unit)
25, 25a Hot water mat 26 Memorial bath 27 Memorial bath 28 Operation controller

Claims (2)

In a heating system that supplies hot water in parallel from a single heat source unit to multiple terminals, the room temperature or floor temperature at which each terminal is installed and the time from when the operation was started independently The temperature until the room temperature or the bed temperature is detected in a time series to determine the rate of temperature increase for each terminal, and when multiple terminals are operated simultaneously, the rate of increase of each terminal is compared and increased. A method of operating a hot water heating apparatus that controls the amount of hot water supplied to a terminal with a small rate to be increased as compared with a terminal with a large rate of increase . One heat source unit that supplies hot water to multiple terminals in parallel,
Temperature detection means for detecting the room temperature or floor temperature from the time when the operation is started independently for each terminal to a certain time; and
Storage means for detecting the rising temperature detected by the temperature detecting means in time series to obtain the rising rate, and storing this;
When multiple terminals are operated at the same time, the rate of increase of each terminal is compared, and the amount of hot water supplied to the terminal with a small increase rate is increased compared to the terminal with a large increase rate . Computing means for computing the amount of hot water supplied;
Hot water control means for controlling the amount of hot water supplied based on the amount of hot water supplied to each terminal calculated by the calculating means;
An operation device for a hot water heating device.

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