JPH08338637A - Method and apparatus for controlling operation of hot-water type heater - Google Patents

Abstract

PURPOSE: To improve a poor start up resulting from that a terminal newly beginning to operate starts up at a low temperature, when the terminal newly begins to operate under a state in which a terminal in a steady operation (low temperature operation) already exists. CONSTITUTION: An operation control circuit 16, is provided which, controls a heat source machine 1 to a high temperature operation while a terminal shifts to a steady operation, when the terminal begins to operate during the steady operation of terminals 15 and 15b, and controls the opening time of the opening and closing valves of the terminals 15 and 15a already shifted to the steady operation during that time so as to have the amount of heat radiation during the steady operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation control method and apparatus for a hot water type heating apparatus in which a plurality of terminals are operated by using one heat source unit whose hot water temperature can be adjusted.

[0002]

2. Description of the Related Art A hot water heating system in which a plurality of terminals are connected to a single heat source device, for example, when the terminals are floor heating systems, when the temperature rises from the start of operation until the room temperature reaches a set temperature Hot water of 80 ° C. is supplied, and hot water of about 60 ° C. is supplied during the subsequent steady operation. FIG. 4 shows an example of this conventional hot water type heating device, in which 1 is a heat source device capable of controlling the hot water discharge temperature to about 80 ° C. and 60 ° C., 2 is a gas burner, 3 is a hot water outlet pipe, and 4 is a low temperature. Side tap pipe, 5
Is a hot water header attached to the low temperature side hot water supply pipe 4, and the hot water header 5 comprises a pipe connection port 6 provided for each terminal and an on-off valve 7 individually attached. 8
Is a heat exchanger, 9 is a return pipe from each terminal, 10 is a circulation pump, 11 is a bypass connecting the hot water outlet pipe 3 and the return pipe 1, 1
When 2 is a cistern and 13 and 14 are temperature sensors, when the heat source device 1 is controlled to a high temperature, hot water is supplied from the hot water header 5 to all terminals (floor heating), and a low temperature is supplied. When controlled, low temperature hot water is uniformly supplied to all terminals.

[0003]

Therefore, the above-mentioned hot water heating device has the following drawbacks. Now, the terminals A and B (room) are in the steady operation state, and the heat source units 1 to 60
When the operation of the terminal C is started while the hot water of ° C is being supplied, the room A and the room B in the steady operation are prioritized, so the hot water of 60 ° C is supplied to the room C as it is. Therefore, the rising operation of the chamber C is performed at 60 ° C. Therefore, if the temperature of the hot water when the floor heating rises independently is 80 ° C., the floor heating of the room C starts up much slower than when the floor heating starts when the floor heating starts independently.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and the constitution thereof is as follows. 1. Hot water is supplied to a plurality of terminals from one heat source device that is configured to control the hot water temperature, and this hot water is supplied by branching the hot water source side of the heat source device and connecting the terminals in parallel by hot water pipes. And, in a hot water heating device comprising an opening / closing valve for each terminal at a branch portion of the hot water pipe,
If there is a terminal that has newly started operation while there is already a terminal that is in steady operation at low temperature, hot water for the terminal that is already in steady operation will be added until this newly started terminal shifts to steady operation. A method for controlling the operation of a hot water heating device, which controls the heat source device to operate at high temperature while limiting the supply of the heat source.

[0005] 2. Hot water is supplied to a plurality of terminals from one heat source device that is configured to control the hot water temperature, and this hot water is supplied by branching the hot water source side of the heat source device and connecting the terminals in parallel by hot water pipes. In a hot water heating device in which an on-off valve is attached to each terminal at the branch portion of the hot water pipe, if there is a terminal that has newly started operation while there is already a terminal that is in steady operation at low temperature Until the terminal that newly started operation shifts to steady operation, the operation of the heat source device is controlled to a high temperature only while the on-off valve of the terminal that is already in steady operation is operating to close, and already in steady operation. The operation control method of the hot water heating device that controls to low temperature operation while the on-off valve of the terminal is open.

[0006] 3. When there are a plurality of terminals that are already in steady operation, the opening timings of the opening / closing valves of the plurality of terminals are matched, and the operation of the heat source device is controlled to a high temperature only when all the opening / closing valves are closed. An operation control method for the hot water heating device described.

4. Hot water is supplied to a plurality of terminals from one heat source device that is configured to control the hot water temperature, and this hot water is supplied by branching the hot water source side of the heat source device and connecting the terminals in parallel by hot water pipes. In a hot water heating device in which an on-off valve is attached to each terminal at the branch portion of the hot water pipe, if there is a terminal that has newly started operation while there is already a terminal that is in steady operation at low temperature Until the terminal that newly started operation shifts to steady operation, the heat source machine is controlled to high temperature operation, and the opening time of the on-off valve of the terminal that is already in steady operation is calculated by the steady operation. A method for controlling the operation of a hot water heating system in which the heat is controlled to be open only during the time when the amount of heat radiation required during operation is reached.

5. Hot water is supplied to a plurality of terminals from one heat source device that is configured to control the hot water temperature, and this hot water is supplied by branching the hot water source side of the heat source device and connecting the terminals in parallel by hot water pipes. And, in the hot water type heating device in which the opening and closing valve is attached to each terminal at the branch portion of the hot water pipe, the operation priority is determined in advance for each terminal, and the terminals already in steady operation at low temperature are If there is a newly started terminal while existing, the newly started terminal is in steady operation only when its priority is higher than the terminal in steady operation. A method for controlling the operation of a hot water heating device, wherein the heat source device is controlled to a high temperature operation while limiting the supply of hot water to the terminal that is already in steady operation until the transition to.

6. When the heat source device is controlled to a high temperature, the opening time of the on-off valve of the terminal which is already in steady operation is controlled to be open only for the time when the amount of heat radiation in steady operation is calculated in advance. Operation control method.

7. The operation control method of the hot water heating device according to the above 5, wherein the heat source device is controlled to a high temperature operation only while the opening / closing valve of the terminal that is already in steady operation is closed when the priority of the terminal that has newly started operation is lower.

8. 8. The operation control method for the hot water heating device according to 5 or 6 or 7, wherein the priority order is manually set.

9. 8. The operation control method for the hot water heating device according to 5 or 6 or 7, wherein the priority order is automatically set according to the environmental conditions in the room where each terminal is installed.

10. 5 or 6 in which the priority order is determined according to the temperature in the heating target room of the terminal that has newly started operation
Alternatively, the operation control method of the hot water heating device according to 7.

11. By detecting the temperature change at the start-up in the room where each terminal is installed in time series, the easiness of warming up of each room is obtained and stored, and it is newly operated while the terminal already in steady operation exists. When there is a terminal that has started, the operation control method of the hot water heating device according to 5 or 6 or 7, wherein the terminal in the room that is difficult to heat is set to a higher priority and the heat source device is operated.

12. Heat source device capable of controlling hot water temperature, a header for distributing hot water supplied from the heat source device to the pipe connection port, an on-off valve respectively attached to the pipe connection port, and a pipe to the pipe connection port of the header If there is a terminal that is connected to each other and a terminal that is already in steady operation at low temperature, restrict the supply of hot water to the terminal that is in steady operation until the terminal that started new operation shifts to steady operation. An operation control device for a hot water heating system, which includes an operation control circuit that controls the heat source device to operate at high temperature.

13. 13. The hot water system according to 12, wherein the operation control circuit is configured to control the heat source device to a high temperature operation only while the opening / closing valve of the terminal that is already in steady operation is open when there is a terminal that has newly started operation. Operation control device for heating system.

14. If there are multiple terminals that are already in steady operation, the operation control circuit should match the opening timing of the opening and closing valves of these terminals and control the heat source unit to high temperature operation only while all the opening and closing valves are closed. 13. The operation control device for the hot water heating device according to 12 above.

15. Prioritize each terminal in advance and determine the priority of the terminal that has newly started operation based on this priority, and if this priority is higher than the terminal that is already in steady operation, operate the heat source machine at high temperature. 12. The operation control circuit is configured so that the opening / closing valve of the terminal that is already in steady operation is controlled to be opened for a time that corresponds to the amount of heat dissipation in pre-calculated steady operation, while controlling the operation. Operation controller for the hot water heating system.

16. The operation control method for a hot water heating device according to any one of 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11, wherein the terminal is a floor heating device or an indoor radiator.

17. 16. The operation control device for the hot water heating device according to 12 or 13 or 14 or 15, wherein the terminal is a floor heating device or an indoor radiator.

[0021]

[Function] The hot water heated by the heat source device is supplied from the hot water header to each terminal via each hot water pipe, radiates heat there, and gathers at the hot water return header via the hot water return pipe.
Return to the heat source machine. The operation of the heat source machine is controlled by the operation control circuit, and there is a terminal that has started a new operation during the operation of already shifting to the steady operation (low temperature operation) and supplying hot water of 60 ° C. In this case, the rising time until the newly started terminal shifts to the steady operation is controlled to a high temperature operation of 80 ° C.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an embodiment of a hot water type heating apparatus embodying the present invention, in which 1 is a heat source device capable of controlling hot water temperature to about 80 ° C. and 60 ° C., 2 is a gas burner, and 3 is a high temperature side. A hot water outlet pipe, which is connected to, for example, an indoor radiator via a hot water header 5a. Reference numeral 4 denotes a low temperature side tap water pipe, 5 denotes a hot water header attached to the low temperature side tap pipe 4, and this hot water header 5 is a pipe connection port for floor heating of rooms A, B and C as shown in FIG. 6 and each on-off valve 7 (A, B, C)
Consists of. 1 and 2, 8 is a heat exchanger, 9 is a return pipe from each terminal, 9a is a return header, 10 is a circulation pump, 11 is a bypass, 12 is a cistern, 13 and 1
Reference numeral 4 is a temperature sensor, and reference numerals 15, 15a and 15b are floor heating (terminals) of rooms A, B and C. 16 is an operation control circuit (device)
Therefore, the operation control circuit 16 performs the following operation control. In the following description, the floor heating 15 is referred to as a terminal A, the floor heating 15a is referred to as a terminal B, and the floor heating 15b is referred to as a terminal C.

Operation Example 1 When there is a terminal B (15a) that has newly started operation while the terminal A (15) that is already in steady operation at a low temperature (about 60 ° C.) exists, this new operation is started. The heat source device 1 is controlled while the supply amount of hot water to the terminal A is limited to the heat radiation amount in the steady operation until the terminal B shifts to the steady operation.
Is controlled at high temperature (about 80 ° C.).

Operation Example 2 If there is a terminal B that has newly started operation while there is a terminal A that is already in steady operation at low temperature, until the terminal B that newly started operation shifts to steady operation. The operation of the heat source device 1 is controlled to a high temperature only while the on-off valve A (6) of the terminal A is operating to be closed during steady operation, and is controlled to be a low temperature while it is operating to be open.

Operation example 3 There are a plurality of terminals A and B during steady operation, and terminal C (15
When the operation of b) is started, the on-off valves A and B of the terminals A and B
The opening timings of the above are matched, and the operation of the heat source device 1 is controlled to a high temperature only when the on-off valves A and B are closed to perform the rising operation of the terminal C. FIG. 3 is a timing chart of this control example, in which the open / close valve A of the terminal A is open for 10 minutes during steady operation and the open / close valve B of the terminal B is open for 8 minutes. When the operation is started, the opening timings of the opening / closing valves A / B of the terminals A / B are matched, and the heat source device 1 is operated at a high temperature of 80 ° C. only when both the opening / closing valves A / B are closed. Operate at a low temperature (about 60 ° C) while it is open.

Operation Example 4 When there is a terminal C that has newly started operation while terminals A and B that are already in steady operation at a low temperature exist, this newly started terminal C shifts to steady operation. Up to the control of the heat source device 1 to high temperature operation, and the opening time of the on-off valves A and B of the terminals A and B which are already in the steady operation, the amount of heat radiation required during the steady operation calculated in advance. Control to open only for the time.

Operation Example 5 The priority order of the operation is determined in advance for each of the terminals A, B and C, and the terminal C newly started operation while the terminals A and B already in steady operation at low temperature exist. If there is, the terminal C newly started to operate is the terminal A
Until the terminal C, which newly starts operation only when the priority is higher than B, shifts to steady operation, the heat source device 1 is operated at high temperature while limiting the supply of hot water to the terminals A and B during steady operation. To control.

Operation Example 6 When the heat source device 1 is controlled to a high temperature, the terminal A which is already in steady operation
-Control the opening time of B on-off valves A and B to the amount of heat that is calculated in advance for the amount of heat radiation during steady operation.

Operation Example 7 If the priority of the newly started terminal C is lower than that of the terminals A and B, the on-off valve A of the terminals A and B already in steady operation is used.
The heat source device 1 is controlled to operate at high temperature only while B is closed. The priorities may be set manually, or the priorities may be automatically set according to the environmental conditions in the room where the terminals A, B, and C are installed. Alternatively, it may be determined based on the temperature of the room to be heated of the terminal C, for example, when the operation is newly started. Or each terminal A / B / C
The temperature change at the start-up of the room where the equipment is installed is detected in a time series to determine and store the easiness of warming of each room, and it is newly stored while terminals A and B already in steady operation exist. When there is a terminal C that has started driving, the terminal in the room where it is difficult to warm up, for example, C, is set to a higher priority.

[0030]

As described above, according to the present invention, when there is a terminal that has newly started operation while a terminal that is already in steady operation exists, the operation of the heat source machine is performed based on the operation examples 1 to 7. Since it is performed, it is not necessary to stand up only with low temperature water as in the past. Therefore, the drawback that the room temperature of the newly started terminal does not rise easily, which has been a problem when there is a terminal that is already in steady operation, is improved.

[Brief description of drawings]

FIG. 1 is an explanatory view of a hot water type heating device embodying the present invention.

FIG. 2 is an explanatory diagram of a heat source unit and a hot water header portion.

FIG. 3 is an explanatory diagram of a driving example 3.

FIG. 4 is an explanatory diagram of a conventional hot water heating device.

[Explanation of symbols]

 1 Heat Source Machine 2 Gas Burner 3 High Temperature Side Hot Water Pipe 4 Low Temperature Side Hot Pipe 5 Hot Water Header 8 Heat Exchanger 9 Return Pipe 9a Return Header 10 Circulation Pump 11 Bypass 12 Sistan 13, 14 Temperature Sensor 15, 15a, 15b Floor Heating 16 Operation Control circuit

Claims (17)

[Claims] 1. Hot water is supplied to a plurality of terminals from a single heat source device whose hot water temperature is controllable, and the hot water is supplied to each terminal by branching the hot water source side of the heat source device. In a hot water heating system that is connected in parallel by pipes and has an on-off valve attached to each terminal at the branch of the hot water piping, a new operation was started while there were terminals that were already in steady operation at low temperature. When there is a terminal, the hot water heating device that controls the heat source device to the high temperature operation while limiting the supply of hot water to the terminal that is already in the steady operation until the terminal that newly starts operation shifts to the steady operation. Operation control method. 2. Hot water is supplied to a plurality of terminals from a single heat source device having a controllable hot water temperature, and the hot water is supplied to each terminal by branching the hot water source side of the heat source device. In a hot water heating system that is connected in parallel by pipes and has an on-off valve attached to each terminal at the branch of the hot water piping, a new operation was started while there were terminals that were already in steady operation at low temperature. If there is a terminal, until the newly started terminal shifts to steady operation, the operation of the heat source unit is controlled to high temperature only while the on-off valve of the terminal that is already in steady operation is operating to close. , A method for controlling the operation of a hot water heating device that controls to a low temperature operation while the on-off valve of the terminal which is already in steady operation is operating to open. 3. When there are a plurality of terminals that are already in steady operation, the opening timings of the opening / closing valves of the plurality of terminals are made to coincide with each other, and only when all the opening / closing valves are closed, the heat source machine is operated at a high temperature. The method for controlling operation of the hot water heating device according to claim 2, wherein 4. Hot water is supplied to a plurality of terminals from a single heat source device having a controllable hot water temperature, and the hot water is supplied by branching the hot water source side of the heat source device to each terminal. In a hot water heating system that is connected in parallel by pipes and has an on-off valve attached to each terminal at the branch of the hot water piping, a new operation was started while there were terminals that were already in steady operation at low temperature. If there is a terminal, until the terminal that newly started operation shifts to steady operation, while controlling the heat source machine to high temperature operation, the opening time of the on-off valve of the terminal already in steady operation, A method for controlling the operation of a hot water heating system in which it is controlled to be open only for the time when the amount of heat radiation required during steady operation is calculated in advance. 5. Hot water is supplied to a plurality of terminals from one heat source device configured to control the hot water temperature, and the hot water is supplied to each terminal by branching the hot water source side of the heat source device. In a hot water heating system in which pipes are connected in parallel and an opening / closing valve is attached to each terminal at the branch of the hot water pipe, operation priorities are determined in advance for each terminal and steady operation is already performed at low temperature. If there is a new terminal that started driving while there is a terminal in operation, this new terminal will start a new operation only when its priority is higher than the terminal in steady operation. The operation control method for the hot water heating device, wherein the heat source device is controlled to a high temperature operation while limiting the supply of hot water to the terminal that is already in steady operation until the terminal moves to steady operation. 6. The method according to claim 5, wherein when the heat source device is controlled to a high temperature, the opening time of the on-off valve of the terminal which is already in steady operation is controlled to be open only for the time when the heat radiation amount in steady operation is calculated in advance. Operation control method for hot water heating system. 7. The hot water heating system according to claim 5, wherein when the priority of the newly started terminal is lower, the heat source unit is controlled to the high temperature operation only while the on-off valve of the terminal which is already in steady operation is closed. Operation control method for equipment. 8. The hot water heating system operation control method according to claim 5, 6 or 7, wherein the priorities are manually set. 9. The operation control method for a hot water heating system according to claim 5, 6 or 7, wherein the priority is automatically set according to the environmental conditions in the room where each terminal is installed. 10. The priority order is determined according to the temperature in the heating target room of the terminal that has newly started operation.
Alternatively, the operation control method of the hot water heating device according to 7. 11. The temperature change at the time of rising of the room in which each terminal is installed is detected in time series to find and store the easiness of warming of each room, and there is a terminal already in steady operation. The operation control method for the hot water heating device according to claim 5, 6 or 7, wherein when there is a terminal that has newly started operation, the terminal in the room that is hard to heat is set to a higher priority and the heat source device is operated. . 12. A heat source device capable of controlling hot water temperature, a header for distributing hot water supplied from the heat source device to a pipe connection port, an on-off valve respectively attached to the pipe connection port, and a pipe connection of the header. If there is a terminal connected to each of the mouths via piping and a terminal that is already in steady operation at low temperature, warm water for the terminal in steady operation until the terminal that newly started operation shifts to steady operation. An operation control device for a hot water heating system consisting of an operation control circuit that controls the heat source device to high-temperature operation while limiting the supply of heat. 13. The operation control circuit is configured to control the heat source device to the high temperature operation only when the opening / closing valve of the terminal which is already in the steady operation is opened when there is a terminal that has newly started operation. Item 12. An operation control device for a hot water heating device according to item 12. 14. When there are a plurality of terminals that are already in steady operation, the opening timings of the opening / closing valves of these terminals are matched, and the heat source unit is controlled to a high temperature operation only while all the opening / closing valves are closed. 13. The operation control device for the hot water heating system according to claim 12, wherein the operation control circuit is configured as described above. 15. A heat source is provided by prioritizing each terminal in advance and determining the priority of a terminal that has newly started operation based on this priority, and if this priority is higher than the terminal that is already in steady operation. While controlling the operation of the machine to high temperature operation, the opening time of the on-off valve of the terminal already in steady operation,
The operation control circuit is configured so that the operation control circuit is opened only during a time when the amount of heat radiation during steady operation calculated in advance is reached.
The operation control device for the hot water heating device according to 2. 16. The operation control method for a hot water heating system according to claim 1, wherein the terminal comprises a floor heating system or an indoor radiator. 17. The operation control device for a hot water heating device according to claim 12, 13 or 14 or 15, wherein the terminal is a floor heating device or an indoor radiator.