JP6044626B2 - Temperature control system - Google Patents

Description

  The present invention relates to a temperature control system, and more particularly to a temperature control system that performs at least one of a heating operation using hot water or a cooling operation using cold water.

  Conventionally, as a temperature control system, as disclosed in JP 2004-20008 (Patent Document 1), heating is performed by circulating hot water between a floor heating panel and a heat source device via a circulation pump. There is a hot water floor heater.

  The hot water floor heating apparatus includes a relay for receiving a control signal from a remote controller and transmitting it to a heat source unit, and detects a room temperature by a room temperature detection thermistor of the relay. Then, by controlling the heat source device by the microcomputer of the repeater, the amount of hot water supplied to the floor heating panel is controlled based on the deviation between the set temperature and the room temperature so that the room temperature becomes the set temperature. Yes.

Japanese Patent Laid-Open No. 2004-20008

  However, the conventional hot water floor heater has the following problems.

  That is, in the conventional hot water floor heating device, the hot water supply amount based on the deviation between the set temperature and the room temperature is controlled by the microcomputer of the repeater to turn on and off the heat valve of the heat source machine. And the opening and closing of the thermal valve is controlled via the microcomputer of the heat source machine. Meanwhile, the circulation pump of the heat source machine is continuously operated at a constant rotational speed set at the start of operation.

  Usually, the floor heating panel, the remote controller and the repeater are installed indoors, and the heat source unit is installed outdoors. On the other hand, in cold districts, it has become common to install the heat source unit indoors in order to prevent freezing of circulating water and to protect and maintain the equipment.

  However, the heat source equipment that is usually installed outdoors has little noise countermeasures in design, and as described above, the circulation pump continues at a constant rotational speed set at the start of operation. Drive. Therefore, when the heat source device is installed indoors as it is, the rotational noise of the circulating pump becomes a big problem for the user.

  In addition, there is a temperature control system in which a heat source unit having a heat source that generates hot or cold heat and a hot water unit that generates hot water or cold water by heat exchange with the heat source are provided separately. Even in such a temperature control system, the warm water unit is generally installed indoors in a cold region. In that case, the circulation pump provided in the said hot water unit is drive | operated by fixed rotation speed similarly to the warm water floor heating apparatus disclosed by the said patent document 1. FIG. Therefore, the rotational noise of the circulation pump becomes a big problem for the user.

  Then, the subject of this invention is providing the temperature control system which can reduce the noise at the time of installing indoors.

In order to solve the above problems, the temperature control system of the present invention is:
A heat source machine having a heat pump;
A cooling / heating unit connected to the heat source unit and having a tank for storing hot water or cold water obtained by heat exchange with the heat pump, and a circulation pump for circulating the hot water or cold water in the tank;
A heat exchange terminal connected to the air conditioning unit and through which the hot water or the cold water circulated by the circulation pump flows;
A pump rotation speed control unit for controlling the rotation speed of the circulation pump,
The pump speed controller, as the control mode, possess a normal mode for driving the circulation pump at a predetermined standard rotational speed, and a silent mode for driving the circulation pump at a lower rotational speed than the standard rotational speed ,
A noise sensor that is set near the outside of the air conditioning unit and detects the noise level of the air conditioning unit;
A noise determination unit that determines whether or not a noise level detected by the noise sensor is lower than a noise level in the normal mode, and sets a rotation speed of the circulation pump in the silent mode based on the determination result;
It is characterized by <br/> equipped with.

  Noise can be reduced by 1 dB by reducing the rotational speed of the circulating pump by 10% from 4000 rpm. The difference of 1 dB below 30 dB is easy for the user to understand, and the reduction in the rotation speed of the circulation pump is very effective in reducing the noise of the circulation pump.

  According to the above configuration, the pump rotation speed control unit that controls the rotation speed of the circulation pump has, as control modes, a normal mode in which the circulation pump is driven at a standard rotation speed, and the circulation pump at a speed higher than the standard rotation speed. And a silent mode that is driven at a low rotational speed. Therefore, by setting the control mode to the silent mode, the noise of the circulating pump, and thus the noise level of the air conditioning unit can be reduced as compared with the normal mode.

That is, according to the present invention, it is possible to reduce indoor noise when the air conditioning unit is installed indoors in a cold district or the like.
Further, according to the above configuration, the rotational speed of the circulation pump in the silent mode based on a determination result of whether or not the noise level detected by the noise determination unit is lower than the noise level in the normal mode. Is set. Therefore, the actual noise level of the air conditioning unit detected by the noise sensor can be fed back, and the noise level of the air conditioning unit can be surely lowered than in the normal mode.

In the temperature control system of one embodiment,
A rotation speed setting section is provided for setting the rotation speed of the circulating pump in a plurality of stages during the silent mode by the pump rotation speed control section.

  According to this embodiment, the rotational speed setting unit can set the rotational speed of the circulating pump in a plurality of stages. Accordingly, during the silent mode by the pump rotation speed control unit, the noise level of the air conditioning unit can be lowered / increased step by step through dialogue with the installation worker or user. Can be set to a desired noise level.

  That is, the noise level when the air conditioning unit is installed indoors in a cold district or the like can be reduced more finely.

Moreover, the temperature control system of this invention is
A heat source machine having a heat pump;
A cooling / heating unit connected to the heat source unit and having a tank for storing hot water or cold water obtained by heat exchange with the heat pump, and a circulation pump for circulating the hot water or cold water in the tank;
A heat exchange terminal connected to the air conditioning unit and through which the hot water or the cold water circulated by the circulation pump flows;
A pump speed controller for controlling the speed of the circulation pump;
With
The pump rotation speed control unit has, as control modes, a normal mode for driving the circulation pump at a predetermined standard rotation speed, and a silent mode for driving the circulation pump at a rotation speed lower than the standard rotation speed. ,
A flow rate sensor for detecting a flow rate of the hot water or the cold water supplied from the circulation pump to the heat exchange terminal;
It is determined whether or not the flow rate detected by the flow sensor satisfies a flow rate corresponding to a set value of the cooling / heating capacity of the heat exchange terminal, and the number of rotations of the circulation pump in the silent mode is determined based on the determination result. and a flow rate determining unit for setting a
It is characterized by that.

According to this invention , based on the determination result whether the flow rate supplied to the heat exchange terminal detected by the flow rate determination unit satisfies the flow rate corresponding to the set value of the cooling / heating capacity of the heat exchange terminal. Thus, the rotational speed of the circulating pump in the silent mode is set. Therefore, it is possible to guarantee the flow rate to the heat exchange terminal when the rotational speed of the circulation pump is set to a rotational speed lower than the rotational speed in the silent mode or the noise level in the normal mode.

In the temperature control system of one embodiment,
The air conditioning unit is separated from the heat source unit and installed indoors.

  According to this embodiment, when the air conditioning unit is installed indoors in a cold district or the like, it is possible to reduce indoor noise of the air conditioning unit that is generated along with the rotation of the circulation pump.

  As is clear from the above, in the temperature control system of the present invention, the pump rotation speed control unit that controls the rotation speed of the circulation pump includes, as a control mode, a normal mode that drives the circulation pump at a standard rotation speed, and the above And a silent mode for driving the circulation pump at a rotational speed lower than the standard rotational speed.

  Therefore, by setting the control mode to the silent mode, the noise of the circulating pump, and hence the noise level of the air conditioning unit can be reduced as compared with the normal mode.

  That is, according to the present invention, it is possible to reduce indoor noise when the air conditioning unit is installed indoors in a cold district or the like.

It is a schematic block diagram in the temperature control system of this invention. It is a schematic front view of a remote controller. It is a figure which shows the transition of the display content of the display part at the time of silent mode designation | designated. It is a figure which illustrates the arrangement | positioning position indoors of the noise sensor in FIG.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  FIG. 1 is a schematic configuration diagram in the temperature control system of the present embodiment.

[Overall configuration of temperature control system]
The temperature control system includes a heat source unit 1, a floor cooling / heating unit 2 connected to the heat source unit 1, and first to eighth floor cooling / heating panels P1 to P8 connected to the floor cooling / heating unit 2. .

[Configuration of heat source machine 1]
The heat source unit 1 includes a compressor 3, a four-way switching valve 4, an outdoor heat exchanger 5, an electric expansion valve 6, and an accumulator 7. One end of the outdoor heat exchanger 5 is connected to one end of the electric expansion valve 6, and one end of the water heat exchanger 8 of the floor cooling / heating unit 2 is connected to the other end. The first port 4 a of the four-way switching valve 4 is connected to the discharge side of the compressor 3. The second port 4 b of the four-way switching valve 4 is connected to the other end of the outdoor heat exchanger 5. Further, the third port 4 c of the four-way switching valve 4 is connected to the suction side of the compressor 3 via the accumulator 7. The fourth port 4 d of the four-way switching valve 4 is connected to the other end of the water heat exchanger 8 of the floor cooling / heating unit 2. The water heat exchanger 8 is a plate type water heat exchanger.

  The compressor 3, the outdoor heat exchanger 5, the electric expansion valve 6, and the water heat exchanger 8 constitute the heat pump.

  During the heating operation, the four-way switching valve 4 is switched to the solid line switching position to allow communication between the first port 4a and the fourth port 4d, and between the second port 4b and the third port 4c. To communicate.

  On the other hand, during the cooling operation, the four-way switching valve 4 is switched to the dotted line switching position so as to communicate between the first port 4a and the second port 4b, and the third port 4c and the fourth port 4d. Communicate between the two.

  The heat source unit 1 is detected by the first to fourth temperature sensors 9 to 12, the outdoor temperature sensor 13, the refrigerant temperature detected by the first to fourth temperature sensors 9 to 12, and the outdoor temperature sensor 13. And a heat source controller 14 that receives a signal representing the outdoor temperature. The first to fourth temperature sensors 9 to 12 and the outdoor temperature sensor 13 are composed of, for example, a thermistor.

  The first temperature sensor 9 detects the refrigerant temperature between the electric expansion valve 6 and the water heat exchanger 8. The second temperature sensor 10 detects the refrigerant temperature between the fourth port 4 d of the four-way selector valve 4 and the water heat exchanger 8. The third temperature sensor 11 detects the refrigerant temperature between the compressor 3 and the first port 4 a of the four-way switching valve 4. The fourth temperature sensor 12 is attached to the outdoor heat exchanger 5 in order to detect the refrigerant temperature in the outdoor heat exchanger 5. The outdoor temperature sensor 13 is disposed in the vicinity of the outdoor heat exchanger 5 in order to detect the outdoor temperature.

  The heat source machine controller 14 controls the operating frequency of the compressor 3 via an inverter (not shown). Further, the heat source device controller 14 also controls the opening degree of the electric expansion valve 6 so that the heat exchange efficiency of the water heat exchanger 8 and the outdoor heat exchanger 5 is optimized. Further, the heat source machine control device 14 is connected to the floor cooling / heating unit control device 15 via a signal line (not shown). In this way, the heat source machine control device 14 and the floor cooling / heating unit control device 15 operate in cooperation with each other.

  The outdoor heat exchanger 5, the compressor 3, the water heat exchanger 8, and the electric expansion valve 6 are connected to each other in an annular shape to constitute a refrigerant circulation circuit.

  Although not shown, an outdoor fan is disposed in the vicinity of the outdoor heat exchanger 5. This outdoor fan blows air to the outdoor heat exchanger 5.

[Configuration of floor cooling / heating unit 2]
The floor cooling / heating unit 2, which is an example of the cooling / heating unit, includes the water heat exchanger 8, an expansion tank 16, a circulation pump 17, a forward header 18, and a return header 19.

  The water heat exchanger 8 is provided with a flow path through which a refrigerant from the heat source unit 1 flows and a flow path through which return water from the first to eighth floor cooling / heating panels P1 to P8 flows. Heat exchange with the water is possible. That is, the water heat exchanger 8 functions as a condenser or an evaporator. Thus, hot water or cold water having a desired temperature is generated by the water heat exchanger 8.

  The expansion tank 16, which is an example of the tank, has a positive / negative pressure valve and accumulates hot water (or cold water) from the water heat exchanger 8. Further, a water supply port 16a is provided in the upper portion of the expansion tank 16, and water is replenished into the expansion tank 16 from the water supply port 16a when necessary.

  The circulation pump 17 has a suction side connected to the expansion tank 16, and a discharge side connected to the forward header 18. Thus, the circulation pump 17 can send the hot water (or cold water) exchanged with the refrigerant passing through the water heat exchanger 8 to the first to eighth floor cooling / heating panels P1 to P8.

  The forward header 18 is connected to one end of the first to eighth thermal valves V1 to V8 and one end of the drain plug V9. Furthermore, the water inlets of the first to eighth floor cooling / heating panels P1 to P8 are connected to the other ends of the first to eighth thermal valves V1 to V8. Moreover, the 1st-8th flow sensor F1-F8 is installed downstream of the 1st-8th thermal valve V1-V8. The first to eighth thermal valves V1 to V8 open and close the flow paths for supplying hot water (or cold water) to the first to eighth floor cooling / heating panels P1 to P8.

  The first to eighth thermal valves V1 to V8 control the flow of hot water (or cold water). That is, the first to eighth thermal valves V1 to V8 are controlled by the floor cooling / heating unit controller 15 and perform opening / closing operations corresponding to the heating / cooling capacity settings of the first to eighth floor cooling / heating panels P1 to P8. is there.

  Each of the first to eighth flow rate sensors F1 to F8 corresponds to the first to eighth water circulation pipes 31 to 8 of the first to eighth floor cooling and heating panels P1 to P8 from the corresponding first to eighth thermal valves V1 to V8. The flow rate of hot water (or cold water) to 38 is detected, and a signal representing the detected flow rate is sent to the floor cooling / heating unit controller 15.

  The return header 19 is connected to water outlets of the first to eighth floor cooling / heating panels P1 to P8. Thus, the hot water (or cold water) of the first to eighth floor cooling / heating panels P1 to P8 returns to the floor cooling / heating unit 2 and circulates in the water circulation circuit 20.

  The floor cooling / heating unit 2 includes first and second water temperature sensors 21, 22, a refrigerant temperature sensor 23, a refrigerant pressure sensor 24, a noise sensor 25, and the floor cooling / heating unit controller 15. ing. The first and second water temperature sensors 21 and 22 and the refrigerant temperature sensor 23 are constituted by, for example, thermistors.

  The first water temperature sensor 21 detects the temperature of hot water (or cold water) flowing from the expansion tank 16 toward the forward header 18 and sends a signal representing the detected temperature to the floor cooling / heating unit controller 15.

  The second water temperature sensor 22 detects the temperature of hot water (or cold water) flowing from the return header 19 toward the water heat exchanger 8 and sends a signal representing the detected temperature to the floor cooling / heating unit controller 15.

  The refrigerant temperature sensor 23 is disposed in the vicinity of the water heat exchanger 8 in the refrigerant pipe connecting the electric expansion valve 6 and the one end of the water heat exchanger 8. The refrigerant temperature sensor 23 detects the temperature of the refrigerant between the electric expansion valve 6 and the water heat exchanger 8 and sends a signal representing the detected temperature to the floor cooling / heating unit controller 15.

  The refrigerant pressure sensor 24 is disposed in the vicinity of the water heat exchanger 8 in the refrigerant pipe connecting the four-way switching valve 4 and the other end of the water heat exchanger 8. The refrigerant pressure sensor 24 detects the refrigerant pressure between the fourth port 4d of the four-way switching valve 4 and the hydrothermal exchanger 8, and sends a signal indicating the detected pressure to the floor cooling / heating unit controller 15. To do.

  As shown in FIG. 4, the noise sensor 25 is disposed in the vicinity of the floor cooling / heating unit 2 indoors and outside the casing C of the floor cooling / heating unit 2. The noise sensor 25 detects the noise of the floor cooling / heating unit 2, particularly the noise of the circulation pump 17, and sends the detected value to the floor cooling / heating unit controller 15.

  Note that the noise sensor 25 may be set only when the temperature control system is installed.

  In addition, the floor cooling / heating unit controller 15 receives a signal representing the heating / cooling capacity setting of the first to eighth floor cooling / heating panels P1 to P8 from the remote controller 26 (see FIG. 2). Further, the floor cooling / heating unit controller 15 controls the circulation pump 17 and the first to eighth thermal valves V1 to V8 based on a signal from the remote controller 26 and the like.

[Configuration of first to eighth floor cooling / heating panels P1 to P8]
The first to eighth floor cooling and heating panels P1 to P8 as an example of the heat exchange terminal are supplied with hot water (or cold water) from the first to eighth thermal valves V1 to V8, and are cooled and heated in the temperature control zone. I do. That is, the 1st-8th floor air conditioning panel P1-P8 has the 1st-8th water circulation pipes 31-38 formed in the meandering shape. And the warm water (or cold water) from the water heat exchanger 8 flows in the 1st-8th water circulation pipes 31-38. In addition, the edge part in the upstream of the 1st-8th water circulation pipes 31-38 forms the water inlet of the 1st-8th floor air conditioning panel P1-P8. Moreover, the edge part in the downstream of the 1st-8th water circulation pipes 31-38 forms the water outlet of the 1st-8th floor air conditioning panel P1-P8.

  Here, the said temperature control zone points out the space where warm heat or cold heat is supplied from the 1st-8th water circulation pipes 31-38.

  FIG. 2 is a schematic front view of the remote controller 26. The remote controller 26 includes an operation unit 41 and a display unit 42 provided on the operation unit 41.

  The operation unit 41 includes a zone selection button 43, a display switching button 44, a run / stop button 45, a return button 46, a menu / decision button 47, an upper button 48, a lower button 49, a right button 50, and a left button 51. doing. When the user operates the zone selection button 43,..., The left button 51, an operation signal corresponding to this operation is output to the floor cooling / heating unit controller 15 (see FIG. 1). That is, the floor cooling / heating unit control device 15 receives an operation signal corresponding to a user operation from the operation unit 41 of the remote controller 26.

  When the temperature control system is turned on, a basic screen is displayed on the display unit 42 as shown in FIG. On this basic screen, it is possible to display information related to at least one of the first to eighth floor cooling / heating panels P1 to P8 (see FIG. 1). It is also possible to display a plurality of information related to the first to eighth floor cooling / heating panels P1 to P8 at the same time. Here, the information is information indicating whether or not the first to eighth floor cooling / heating panels P1 to P8 are operating, and is the timer operation for the first to eighth floor cooling / heating panels P1 to P8 set? At least 1 of the information which shows NO, the information which shows the operation mode of 1st-8th floor air-conditioning panel P1-P8, and the information of the setting of the air-conditioning capacity of 1st-8th floor air-conditioning panel P1-P8 Point to one.

  Hereinafter, in the temperature control system configured as described above, noise reduction when installed indoors, which is a feature of the present embodiment, will be described. Here, the following description will be made on the assumption that the floor cooling / heating unit 2 is installed indoors, but the present invention is not limited thereto. Even if the heat source unit 1 and the floor cooling / heating unit 2 are both installed outdoors, the heat source unit 1 and the floor cooling / heating unit 2 are installed indoors, even if the heat source unit 1 is installed outdoors and the floor cooling / heating unit 2 is installed indoors. But it does n’t matter.

  When the floor cooling / heating unit 2 is installed indoors in a cold district or the like, the length of hot water (or cold water) piping from the floor cooling / heating unit 2 to the first to eighth floor cooling / heating panels P1 to P8 is outdoor. It can be shorter than the case where it is installed. Therefore, the resistance of the hot water (or cold water) in the pipe is reduced, and the head required for the circulation pump 17 is lowered accordingly, so that the rotation speed of the circulation pump 17 can be reduced. Note that a decrease in the number of revolutions in the circulation pump 17 is very effective in reducing noise in the circulation pump 17. For example, when the rotational speed of the circulation pump 17 is 4000 rpm, the noise is about 29 dB, and by reducing the rotational speed by 10% to 3600 rpm, the noise can be reduced by 1 dB to about 28 dB. The difference of 1 dB below 30 dB is easy for the user to understand.

  Therefore, in the present embodiment, when the temperature control system is installed locally, by specifying the silent mode, the rotation speed of the circulation pump 17 is reduced as compared with that in the normal mode, thereby reducing noise in the normal mode. It is about 1 dB lower than the level.

  In the temperature control system having the above configuration, the floor cooling / heating unit controller 15 includes a microcomputer, an input / output circuit, and the like.

  As shown in FIG. 1, the floor cooling / heating unit control device 15 rotates the rotation speed of the circulation pump 17 lower than the rotation speed in the normal mode when the installation worker designates the “silent mode” at the site. A pump speed controller 15 a that controls the number of revolutions, a speed setting section 15 b that sets the speed of the circulation pump 17 in the silent mode in a plurality of stages according to an instruction from the remote controller 26, and a signal from the noise sensor 25 The flow rate to the first to eighth water circulation pipes 31 to 38 is determined based on the noise determination unit 15c that determines the noise of the floor cooling and heating unit 2 based on the above and the above signals from the first to eighth flow rate sensors F1 to F8. And a flow rate determination unit 15d.

  The pump rotation speed control unit 15a, the rotation speed setting unit 15b, the noise determination unit 15c, and the flow rate determination unit 15d are configured by software. The rotation speed setting unit 15b is included in the pump rotation speed control unit 15a and represents a subprogram.

  Next, the operation of the remote controller 26 when the installation worker designates the “silent mode” will be described with reference to FIGS. However, the operation method of the remote controller 26 described below is an example, and any operation method may be used as long as the operation method finally designates the “silent mode”.

  In FIG. 2, for the remote controller 26 in a state where the basic screen is displayed on the display unit 42, by pressing the display switching button 44 for a preset time while pressing the return button 46 first, The display on the display unit 42 is switched to a “local setting menu” screen as shown in FIG. Furthermore, when “other setting” is determined and selected from the “local setting menu” by operating the upper button 48 or the lower button 49, the screen is switched to the “other setting menu” screen as shown in FIG. Further, when “silent mode setting” is determined and selected from the “other setting menu” by operating the upper button 48 or the lower button 49, the screen is switched to the “silent mode setting menu” screen as shown in FIG. In this state, by operating the right button 50 or the left button 51 to select and select “ON” from the “silent mode setting menu”, a signal indicating that the “silent mode” has been selected is a control for the floor cooling / heating unit. Sent to the device 15.

  Then, the floor cooling / heating unit control device 15 activates the program of the pump rotation speed control unit 15a and executes the following pump rotation speed control.

  That is, the pump rotation speed control unit 15a sets the rotation speed of the circulation pump 17 in advance so that the noise level is about 1 dB lower than the rotation speed in the normal mode, and stores it in the memory of the microcomputer. It is set to “silent mode rotation speed”.

  Thus, when the rotational speed of the circulation pump 17 is set to "silent mode rotational speed" by the pump rotational speed control unit 15a, the floor cooling / heating unit control device 15 activates the program of the noise determination unit 15c, The following noise judgment is executed.

  That is, the noise determination unit 15 c detects the noise of the floor cooling / heating unit 2 based on the signal from the noise sensor 25. Then, it is determined whether or not the noise level of the floor cooling / heating unit 2 is actually lower than the noise level in the normal mode. When the noise level is higher than that in the normal mode, the pump rotation speed control unit 15a is instructed to reduce the rotation speed by one step. The above operation is repeated until the noise level becomes lower than the noise level in the normal mode. Here, the amount of decrease in the rotational speed in the first stage is preset and stored in the memory or the like.

  Thus, when the rotation speed of the circulation pump 17 is set lower than the noise level in the normal mode by the pump rotation speed control unit 15a and the noise determination unit 15c, the floor cooling / heating unit controller 15 sets the flow rate determination unit 15d. Is started, and the following flow rate determination is executed.

  That is, the flow rate determination unit 15d is configured to output the first to eighth flow sensors F1 to F8 based on signals representing the flow rates of hot water (or cold water) to the first to eighth water circulation pipes 31 to 38. The flow rates to the eighth water circulation pipes 31 to 38 are individually detected sequentially. And it is determined whether the separate flow volume to the 1st-8th water circulation pipes 31-38 has satisfy | filled the flow volume corresponding to the said air conditioning capability setting of the 1st-8th floor air conditioning panel P1-P8. As a result, when there is an unsatisfied water circulation pipe, the display unit 42 displays that the flow rate to the first to eighth water circulation pipes 31 to 38 does not satisfy the air conditioning capability setting, and the pump rotation speed The controller 15a is instructed to increase the rotational speed in one step. The above operation is repeated until the flow rates to all the first to eighth water circulation pipes 31 to 38 satisfy the above-described air conditioning capability setting. Here, the amount of increase in the rotational speed in the first stage is set in advance and stored in the memory or the like.

  In the above description, when the flow rate corresponding to the air conditioning capability setting is not satisfied, the rotational speed of the circulation pump 17 is automatically increased by one step. However, the present invention is not limited to this, and only the display on the display unit 42 may be stopped, and whether or not the rotation speed of the circulation pump 17 is increased may be left to the judgment of the installation worker.

  As described above, according to the present embodiment, when the installation worker designates the “silent mode” by operating the remote controller 26, the pump rotation speed control unit is controlled by the floor cooling / heating unit controller 15 of the floor cooling / heating unit 2. The program 15a is started. Then, the rotational speed of the circulation pump 17 is set to a “silent mode rotational speed” that is set in advance so that the noise level is about 1 dB lower than the rotational speed of the normal mode. Therefore, the noise level of the floor cooling / heating unit 2 can be lowered by about 1 dB, and the noise when the floor cooling / heating unit 2 is installed indoors in a cold district or the like can be reduced.

  Further, when the rotational speed of the circulating pump 17 is set to “silent mode rotational speed”, the floor cooling / heating unit controller 15 starts the program of the noise determination unit 15c. Then, the noise of the floor cooling / heating unit 2 is detected, and it is determined whether the noise level of the floor cooling / heating unit 2 is lower than the noise level in the normal mode. If the noise level is higher than that in the normal mode, the pump rotation speed control unit 15a is instructed to reduce the rotation speed in a plurality of stages until the noise level becomes lower than that in the normal mode. Therefore, the actual noise level of the floor cooling / heating unit 2 based on the signal from the noise sensor 25 can be fed back, and the noise level of the floor cooling / heating unit 2 can be surely made lower than the noise level in the normal mode.

  Further, when the rotational speed of the circulating pump 17 is set lower than the noise level in the normal mode, the floor cooling / heating unit control device 15 starts the program of the flow rate determination unit 15d. And each flow volume to the 1st-8th water circulation pipes 31-38 is detected, and it is determined whether the flow volume corresponding to the above-mentioned heating-and-cooling capacity setting of the 1st-8th floor cooling-heating panels P1-P8 is satisfied. . If there is an unsatisfied water circulation pipe, the pump rotation speed controller 15a is instructed to increase the rotation speed in a plurality of stages until the flow rate is satisfied. Therefore, the flow rate to the first to eighth water circulation pipes 31 to 38 is guaranteed when the rotation speed of the circulation pump 17 is set to “silent mode rotation speed” or “rotation speed lower than the noise level in the normal mode”. can do.

  In the first embodiment, the flow rate determination unit 15d is operated after the pump rotation number control unit 15a is operated and the noise determination unit 15c is operated. However, after the operation of the pump speed controller 15a is performed, the flow rate determination unit 15d may be operated without performing the operation of the noise determination unit 15c.

  As described above, according to the present embodiment, when the installation worker designates the “silent mode” by operating the remote controller 26, the rotational speed of the circulation pump 17 is set to the “silent mode rotational speed”. I am doing so.

  However, in the present invention, it is also possible to make it possible to control the rotational speed of the circulation pump 17 according to the input of the noise level by the user.

  Hereinafter, a modification in which the rotational speed of the circulation pump 17 is controlled according to the noise level designated by the user will be described.

  First, the user operates the remote controller 26 and designates the “silent mode”. The operation method of the remote controller 26 in that case may be the same as that of the installation worker or a different operation method.

  When the “silent mode” is designated in this way, the program for the pump rotation speed control unit 15a is started by the floor cooling / heating unit controller 15, and the “silent mode” is designated by the installation worker as described above. Similarly, the rotational speed of the circulation pump 17 is set to a “silent mode rotational speed” set in advance so that the noise level is about 1 dB lower than the rotational speed of the normal mode. The display unit 42 of the remote controller 26 displays, for example, a current noise level of the floor cooling / heating unit 2 based on a signal from the noise sensor 25, a guide for changing the noise level, and the like.

  In this state, the sub-program of the rotation speed setting unit 15b is started by the floor cooling / heating unit control device 15 every time the user operates the lower button 48, for example, according to the guide for the change method. The rotational speed of 17 is changed to “a one-stage lower rotational speed” that is a rotational speed set in advance so that the noise level is about 1 dB lower than the “silent mode rotational speed”. The display unit 42 displays, for example, the noise level of the floor cooling / heating unit 2 at the changed “one-stage lower rotation speed”.

  Further, the floor cooling / heating unit controller 15 activates the program of the flow rate determination unit 15d to detect the flow rates to the first to eighth water circulation pipes 31 to 38 as described above. And when not satisfy | filling the flow volume corresponding to the said air conditioning capability setting of the 1st-8th floor air conditioning panel P1-P8, the flow volume to the 1st-8th water circulation pipes 31-38 is displayed on the display part 42. Displays that the air conditioning capacity setting is not met.

  Then, every time the user operates the upper button 48 once in response to the above display, the sub-program of the rotation speed setting unit 15b is started by the floor cooling / heating unit control device 15, and the rotation speed of the circulation pump 17 is increased. However, the rotational speed is changed to “the one-stage upper rotational speed” which is a rotational speed set in advance so that the noise level is about 1 dB higher than the current noise level. The display unit 42 displays, for example, the noise level of the floor cooling / heating unit 2 at the changed “one-stage lower rotation speed”.

  When the user operates the return button 46 of the remote controller 26, the display on the display unit 42 returns to the basic screen.

  As described above, according to the present modification, when the user designates the “silent mode” by operating the remote controller 26, the program for the pump speed controller 15 a is executed by the floor cooling / heating unit controller 15 of the floor cooling / heating unit 2. Is activated. Then, the rotational speed of the circulation pump 17 is set to the “silent mode rotational speed”.

  Further, for example, every time the user operates the lower button 48 once, the sub-program of the rotation speed setting unit 15b is started by the floor cooling / heating unit control device 15, and the rotation speed of the circulation pump 17 is changed to the "silent sound". The noise level is changed to “the one-stage lower rotational speed” set so as to be lower than the “mode rotational speed” by about 1 dB.

  Further, whether or not the program of the flow rate determination unit 15d is started by the floor cooling / heating unit control device 15 and the flow rate corresponding to the cooling / heating capacity setting of the first to eighth floor cooling / heating panels P1 to P8 is satisfied. And the display on the display unit 42 when it is not satisfied.

  Each time the user operates the upper button 48 in response to the above display, the sub-program of the rotation speed setting unit 15b is started by the floor cooling / heating unit control device 15, and the rotation speed of the circulation pump 17 is The noise level is changed to the above “one-stage rotational speed” set so that the noise level is about 1 dB higher than the current noise level.

  Therefore, according to the present modification, the noise level of the floor cooling / heating unit 2 can be lowered / increased in steps of, for example, about 1 dB by dialogue with the user, and the noise level desired by the user is set. Moreover, it can be made low so that the air conditioning capability of the 1st-8th floor air conditioning panel P1-P8 may be satisfy | filled. That is, noise in the case where the floor cooling / heating unit 2 is installed indoors in a cold district or the like can be reduced more finely.

  In the modified example, the process based on the operation of the noise determination unit 15c is not performed. However, the operation of the noise determination unit 15c may determine whether the detected noise level of the floor cooling / heating unit 2 is actually lower than the noise level in the normal mode.

  Further, in the above modification, the case where the “silent mode” is designated by the user is described as an example. However, the present invention is not limited to this, and when the installation worker designates the “silent mode”, the rotational speed of the circulation pump 17 can be changed stepwise by operating the lower button 48 or the like. There is no problem.

  In the embodiment and the modification described above, when the rotational speed of the circulation pump 17 is changed, the predetermined rotational speed is changed so that the noise level changes by about 1 dB. It is not limited to the change, and the best change in the number of dBs may be set as appropriate.

  Moreover, in the said embodiment and modification, although the case where the floor cooling / heating panel as an example of the said heat exchange terminal is used as an example is demonstrated, it is not limited to a floor cooling / heating panel. For example, it may be a ceiling cooling / heating panel, a ceiling cooling panel, a ceiling heating panel, a wall cooling / heating panel, a wall cooling panel, a wall heating panel, or an indoor radiator.

  In the above-described embodiment and modification, the temperature control system that performs the heating operation and the cooling operation has been described. However, the present invention may be applied to a temperature control system that performs only one of the heating operation and the cooling operation. Good.

  Moreover, in the said embodiment and modification, although the floor cooling / heating unit 2 is remotely operated by the remote controller 26, the controller is not restricted to this, The controller provided in the floor cooling / heating unit may be sufficient.

  Moreover, in the said embodiment and modification, although the pump rotation speed control part 15a, the rotation speed setting part 15b, the noise determination part 15c, and the flow volume determination part 15d are comprised with software, a pump rotation speed control part and You may make it comprise at least 1 of a rotation speed setting part, a noise determination part, and a flow volume determination part with a hardware.

  Moreover, in the said embodiment and modification, although the plate type water heat exchanger is used for the water heat exchanger 8 of the floor cooling and heating unit 2, other water heat exchanges, such as a double pipe type water heat exchanger, are used. A vessel may be used.

  Moreover, in the said embodiment and modification, although the electric expansion valve 6 is used for the refrigerant circuit of the heat-source equipment 1, you may use a capillary tube, for example.

  Moreover, in the said embodiment and modification, the communication between the control apparatus 14 for heat source machines and the control apparatus 2 for floor cooling / heating units may be performed by a wire, and may be performed by radio | wireless.

  Moreover, in the said embodiment and modification, although the temperature control system using 1st-8th thermal valve V1-V8 was demonstrated as an on-off valve, an on-off valve is not restricted to this, Other electromagnetic valves etc. An opening / closing mechanism may be used.

  In the embodiment and the modification, the “silent mode” is specified by the remote controller 26. However, the present invention is not limited to the remote controller 26. For example, a dip switch or the like provided in the heat source device 1 may be used.

  As another modification of the above embodiment, when the temperature control system is installed locally, when the heat source device 1 is installed indoors, for example, an installation worker designates “indoor installation mode”. Alternatively, the rotational speed of the circulation pump 17 may be lower than that in the normal mode, and may be about 1 dB lower than the noise level in the normal mode. In this case, the “indoor installation mode” is a concept including the “silent mode”. Here, the designation of the “indoor installation mode” may be performed by the remote controller 26 as in the case of the above embodiment, or may be performed by a dip switch or the like provided in the heat source unit 1. Good.

  While specific embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and modifications, and various modifications can be made within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Heat source machine 2 ... Floor cooling / heating unit 3 ... Compressor 4 ... Four-way switching valve 5 ... Outdoor heat exchanger 6 ... Electric expansion valve 7 ... Accumulator 8 ... Water heat exchanger 9-12 ... 1st-4th temperature sensor DESCRIPTION OF SYMBOLS 13 ... Outdoor temperature sensor 14 ... Heat source machine control device 15 ... Floor cooling / heating unit control device 15a ... Pump rotation speed control unit 15b ... Rotation speed setting unit 15c ... Noise determination unit 15d ... Flow rate determination unit 16 ... Expansion tank 17 ... Circulation Pump 18 ... Outgoing header 19 ... Return header 20 ... Water circulation circuits 21, 22 ... First and second water temperature sensors 23 ... Refrigerant temperature sensor 24 ... Refrigerant pressure sensor 25 ... Noise sensor 26 ... Remote controllers 31-38 ... First to first 8 water circulation pipe 41 ... operation part 42 ... display part 43 ... zone selection button 44 ... display switching button 45 ... run / stop button 46 ... return button 47 ... menu / decision button 48 ... up button 49 ... lower button 50 ... right button 51 ... left button P1-P8 ... first to eighth floor cooling / heating panels V1-V8 ... first to eighth thermal valves V9 ... drain plugs F1-F8 ... first to eighth Flow sensor C ... casing

Claims (5)

A heat source machine (1) having a heat pump (3, 5, 6, 8);
A tank (16) that is connected to the heat source unit (1) and stores hot water or cold water obtained by heat exchange with the heat pump (3, 5, 6, 8), and hot water in the tank (16) Or an air conditioning unit (2) having a circulation pump (17) for circulating cold water,
Heat exchange terminals (P1 to P8) connected to the air conditioning unit (2) and through which the hot water or the cold water circulated by the circulation pump (17) flows;
A pump rotation speed control unit (15a) for controlling the rotation speed of the circulation pump (17),
The pump rotation speed control unit (15a) includes, as control modes, a normal mode for driving the circulation pump (17) at a predetermined standard rotation speed, and a rotation speed lower than the standard rotation speed for the circulation pump (17). in possess a silent mode to drive,
A noise sensor (25) which is set near the outside of the air conditioning unit (2) and detects the noise level of the air conditioning unit (2);
It is determined whether or not the noise level detected by the noise sensor (25) is lower than the noise level in the normal mode, and the rotational speed of the circulation pump (17) in the silent mode is determined based on the determination result. Noise setting unit (15c) to be set
Temperature control system characterized by comprising a. A heat source machine (1) having a heat pump (3, 5, 6, 8);
A tank (16) that is connected to the heat source unit (1) and stores hot water or cold water obtained by heat exchange with the heat pump (3, 5, 6, 8), and hot water in the tank (16) Or an air conditioning unit (2) having a circulation pump (17) for circulating cold water,
Heat exchange terminals (P1 to P8) connected to the air conditioning unit (2) and through which the hot water or the cold water circulated by the circulation pump (17) flows;
A pump speed controller (15a) for controlling the speed of the circulation pump (17);
With
The pump rotation speed control unit (15a) includes, as control modes, a normal mode for driving the circulation pump (17) at a predetermined standard rotation speed, and a rotation speed lower than the standard rotation speed for the circulation pump (17). And a silent mode driven by
A flow rate sensor (F1 to F8) for detecting a flow rate of the hot water or the cold water supplied from the circulation pump (17) to the heat exchange terminals (P1 to P8);
It is determined whether or not the flow rate detected by the flow rate sensors (F1 to F8) satisfies the flow rate corresponding to the set value of the cooling and heating capacity of the heat exchange terminals (P1 to P8), and based on the determination result, A flow rate determination unit (15d) for setting the rotational speed of the circulation pump (17) in the silent mode;
Temperature control system characterized by comprising a. In the temperature control system according to claim 1 ,
A flow rate sensor (F1 to F8) for detecting a flow rate of the hot water or the cold water supplied from the circulation pump (17) to the heat exchange terminals (P1 to P8);
It is determined whether or not the flow rate detected by the flow rate sensors (F1 to F8) satisfies the flow rate corresponding to the set value of the cooling and heating capacity of the heat exchange terminals (P1 to P8), and based on the determination result, A flow rate determination unit (15d) for setting the rotational speed of the circulation pump (17) in the silent mode;
Temperature control system characterized by comprising a. In the temperature control system according to any one of claims 1 to 3,
A rotation speed setting section (15b) for setting the rotation speed of the circulating pump (17) in a plurality of stages during the silent mode by the pump rotation speed control section (15a)
A temperature control system characterized by having it. In the temperature control system according to any one of claims 1 to 4,
The air conditioning unit (2) is separated from the heat source (1) and is installed indoors.

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