JPH09264546A - Hot water floor heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely perform the acceptance/rejection judgement for a trial run on completion of the installation and at the beginning of a season, etc., in a short period of time. SOLUTION: This hot water floor heating device is equipped with a plurality of radiators being arranged on a floor F surface in a room, a heat source machine 3 which feeds water for heating to respective radiators, a remote controller 8 which is arranged so as to correspond with each radiator, a floor temperature detector 24 which is attached to each controller, and a trial run acceptance/rejection judging means 34 which judges the acceptance/rejection of a trial run by judging whether the floor surface temperature has reached a set temperature or not. For this trial run acceptance/rejection judging means, an abnormality detecting means 35 which judges to be abnormal in such a manner during a trial run of one of the radiators, a floor temperature being detected by other floor temperature detector which does not correspond with that radiator, has reached a specified temperature or higher, it is judged as an abnormality, is provided as a feature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water floor heating apparatus for heating hot water by circulating hot water on a floor in a room, and a test operation method thereof.

[0002]

2. Description of the Related Art Conventionally, in a hot water floor heating system of this type, a radiator is installed indoors, piping between the radiator and the heat source device, or indoors corresponding to the radiator is installed. After wiring the control signal between the remote controller and the heat source device, etc., the trial run for checking the water filling and the operation of the heating water circuit is performed. One example is, for example, JP-A-6-3.
It is proposed in Japanese Patent No. 23555.

The test run method according to this proposal detects a change in the water level of the heating water stored in the heating water tank in the heat source unit, and the temperature of the heating water supplied from the heat source unit to the radiator and the heat source from the radiator. By detecting the temperature difference from the heating water temperature returned to the machine, the water filling of the heating water circulation path and the circulating state of the heating water to the radiator are inspected.

However, with such a test operation method, heating water that circulates in the circulation path is used as the operation state determination medium during the test operation, and the success or failure of the test operation is determined by the change in the state of the heating water. And, since this judgment is performed only on the heat source machine side,
There is no relation to the actual temperature change in the room, and the test run is simulated.

When a plurality of the heat radiators are connected in parallel to the heat source machine and the heat radiators are individually tested, as described above, the determination is made only on the heat source machine side, and Since the heating water supply unit and the recovery unit are common in the heat source unit, even if the heating water is supplied to a radiator other than the radiator specified as the target of the trial operation,
There is also a problem that it cannot be distinguished.

Therefore, the condition for the test run is that the wiring to the radiator and the heating valve for controlling the heating water supply are properly performed, and it is impossible to detect the incorrect piping or the incorrect wiring after the construction.

After completion of the water filling operation for the heating water circulation path including the radiator, the heated heating water is circulated in the circulation path, and the floor temperature in the room rises to a predetermined temperature within a predetermined time. It may be possible to judge that the test operation is passed sometimes, and to reject the test operation when the temperature does not rise to a predetermined temperature within a predetermined time.

Thus, by feeding back the actual floor temperature as a control factor to the control means, it is possible to perform a trial operation in accordance with the actual heating condition in the room, and in the case where a plurality of radiators are provided, incorrect piping or incorrect wiring is required. Even if there is, there is an advantage that the presence or absence of erroneous piping and erroneous wiring can be detected by directly detecting the temperature change of the radiator that is the target of the trial operation.

[0009]

The latter hot-water floor heating system described above still has the following problems to be improved.

That is, after the water filling operation for the heating water circulation path including a plurality of radiators is completed, the heated heating water is circulated in the circulation path until the floor temperature in the room reaches a predetermined temperature within a predetermined time. When the temperature rises, it is judged that the test operation has passed, but if there is incorrect piping or wiring, it must be judged that the test operation has failed when the temperature does not rise to the predetermined temperature within the predetermined time (for example, 50 minutes). Therefore, it took a long time to determine that the piping was wrong or the wiring was incorrect, and the abnormality was extremely inefficient.

The present invention has been made in view of the above-mentioned problems, and provides a hot water floor heating system capable of reliably and quickly making a pass / fail judgment of a trial operation at the end of construction or at the beginning of a season. Is a problem to be solved.

[0012]

In order to solve the above-mentioned problems, the hot water floor heating apparatus according to the first aspect of the present invention includes:
A heat source machine that supplies heating water to a plurality of radiators installed on the floor of the room, a remote controller that controls the operation of the heat source machines installed in the room corresponding to each of the radiators, and While being attached to a remote controller, a floor temperature detector that detects the temperature of the floor surface, and during a test run, based on the detection signal from the floor temperature detector, whether the floor surface temperature has reached a set temperature or not. The trial operation pass / fail determination means for determining pass / fail of the trial operation is provided by making a determination, and the trial run pass / fail determination means stores and stores the initial floor temperature at the start of the trial operation by one floor temperature detector, and detects the floor temperature. An abnormality detection unit is provided for determining an abnormality when a rise in the floor temperature of a predetermined amount or more from the initial floor temperature is detected during the trial operation of another remote controller to which the equipment is not connected. It is characterized in Rukoto.

[0013]

DETAILED DESCRIPTION OF THE INVENTION An embodiment according to claim 1 of the present invention will be described below with reference to FIGS.
FIG. 1 is a system configuration diagram of the present embodiment. In FIG. 1, reference numeral 1 indicates a hot water floor heating apparatus according to the present embodiment. This hot water floor heating system 1 supplies a plurality of hot water mats 2 (2a, 2b) as radiators installed in a room, and a heat source for supplying heating water to these hot water mats 2 and heating the heating water. Machine 3, a hot water pump 4 provided in the heat source machine 3 for sending the heating water under pressure, the hot water pump 4 and each hot water mat 2 are connected to each other, and the heating water sent under pressure by the hot water pump 4 is provided in each of the above. Hot water mat 2
The heating water supply pipes 5 (5a, 5b) leading to the heating water mats 2 and the heat source device 3 are connected to each other, and the heating water discharged from each hot water mat 2 is returned to the heat source device 3 The water return pipe 6 and the thermal valves 7 (7a and 7b) provided in the middle of the heating water supply pipes 5 for adjusting and controlling the amount of heating water supplied to the hot water mats 2 and the hot water. The remote controller 8 (8a, 8b) is provided corresponding to the mat 2 and sets the floor temperature and the like.

More specifically, as shown in FIG. 2, the heat source unit 3 ignites the gas valve 9 for adjusting the supply amount of the combustion gas supplied to the burner (not shown) for heating the heating water and the burner. The igniter 10 for operating the plurality of thermal valves 7
(7a, 7b) and the hot water pump 4 are connected together.

Further, the heat source unit 3 is provided with a combustion control circuit 11 for controlling the operation of the gas valve 9 and the igniter 10, and the heat operated valve 7 (7a, 7b) and the hot water pump 4 are provided. Is provided with a driver 12 for controlling the operation of the hot water floor heating system 1 and a microcomputer 13 for outputting a control signal to the combustion control circuit 11 and the driver 12. A trial run switch 14 for performing the operation and a communication circuit 15 for transmitting and receiving a signal to and from the remote controller 8 (8a, 8b) are connected.

As shown in FIG. 3, the remote controller 8 is provided with a display section 16 for performing various displays on its operation panel, and a time setting key 17,
A room temperature thermistor is provided with various operation keys such as a program time setting key 18, a temperature setting key 19, a run / stop key 20, a program setting key 21, a time setting key 22, and a room temperature detector for detecting the room temperature. 23
And a connector 25 to which a floor temperature thermistor 24 as a floor temperature detector described later is connected.

As shown in FIG. 4, the bed temperature thermistor 24 has an upper portion made of a resin container 26 filled with water.
Is provided in the lower surface of the heat insulating material 26b substantially at the center.

The container 26 is provided with a water injection pipe 26a for filling water therein.
Is a cap 2 which is detachably attached to its end opening.
It can be opened and closed by 6c.

As described above, in the floor temperature thermistor 24, the heat insulating material 26b suppresses the thermal influence from the parts other than the floor F, and the weight of the water filled in the container 26 prevents the floor temperature from being applied to the floor surface. It is configured to be in close contact.

Further, one end of a signal line 27 penetrating the container 26 is connected to the bed temperature thermistor 24, and a plug 28 provided at the other end of the signal line 27 is connected to the connector 25 of the remote controller 8. The floor temperature thermistor 24 is detachably connected to the remote controller 8 by being detachably attached to the remote controller 8.

The display section 16 is composed of a current time display section 29 which is a 7-segment LCD, a program time display section 30, and a set temperature display section 31 which is a flat panel LCD.

On the other hand, inside the remote controller 8, as shown in FIG.
And a communication circuit 3 for transmitting and receiving signals to and from the heat source unit 3.
3 is incorporated, and the microcomputer 32
At the time of a test operation of the hot water floor heating system 1, a test operation for determining whether the test operation is successful or not is made by determining whether or not the floor surface temperature has reached a set temperature based on a detection signal from the floor temperature thermistor 24. Pass / fail judgment means 34 is provided.

Then, the trial operation pass / fail judgment means 34 detects and stores the initial bed temperature at the start of the trial operation of the radiator to which a certain controller is connected, and the other than the remote controller 8 which is the target of the trial operation. In the remote controller 8, an abnormality detection unit 35 that determines an abnormality when a rise in the floor temperature above a predetermined level from the initial floor temperature is detected.
Is provided.

Next, a method of operating the hot water floor heating system 1 according to this embodiment having the above-described structure will be described. First, the normal operation will be described based on the processing flow shown in FIG. 5. The normal operation is started by operating the operation / stop key 20 of the remote controller 8, but the normal operation processing is started. Then, the presence / absence of an ON signal for operation is confirmed (step S1), and if there is no ON signal, the process proceeds to step S2, and an operation stop signal is output from the remote controller 8 to the heat source device 3 to cause the heat source device 3 to operate. A control signal is output to the driver 12 on the basis of the operation stop signal, whereby the corresponding thermal valve 7 is closed and the supply of heating water to the hot water mat 2 is stopped.

When the operation ON signal is confirmed in step S1, the process proceeds to step S3 and the operation is turned on.
Whether or not the signal is the first time is determined. If the signal is the first time, the process proceeds to the next step S4, and if it is not the first time, the process proceeds to step S5.

At step S4, the remote controller 8 sends an operation ON signal to the heat source unit 3 and the room temperature information obtained from the room temperature thermistor 23 and the set temperature set by the temperature setting key 19. The ON-OFF time of the thermal valve 7 is calculated from the information and the thermal valve ON signal is transmitted to the heat source device 3, and at the same time, the thermal valve ON timer is set, and then the process proceeds to step S5. .

In step S5, it is determined whether the thermal valve 7 is ON, and if it is ON,
In step S6, it is determined whether the thermal valve ON timer set in step S4 has expired,
When the operation is finished, the process proceeds to the next step S7, and the thermal valve O
The FF signal is transmitted to the heat source device 3, and the microcomputer 13 of the heat source device 3 outputs a control signal to the driver 12, whereby the thermal valve 7 is closed, and the heating water for the hot water mat 2 is closed. After the supply is stopped and the thermal valve OFF timer is set, the process proceeds to step S1 and subsequent steps.

Further, in step S5, the thermal valve 7 is turned on.
If it is determined to be FF, the process proceeds to step S8, and the thermal valve O set in step S7 is set.
When it is judged whether or not the FF timer has expired, if the FF timer has not yet expired, the processing from step S1 is repeated, and if the thermal valve OFF timer has expired, in the next step S9. The ON-OFF time of the thermal valve 7 is calculated in the same manner as in step S4, and a thermal valve ON signal is output to the heat source device 3, and at the same time, the thermal valve O
After the N timer is set, the processing from step S1 is repeated.

As described above, during the normal operation, the predetermined time (for example, 20 minutes) is set as one cycle, and the thermal valve 7 is turned on during the set ON-OFF time in the one cycle.
When turned off, the amount of hot water supplied to the room is controlled and the room temperature is controlled to the set temperature.

The ON time of the thermal valve 7 is variably controlled within the range of 3 to 20 minutes (continuous ON) according to the difference between the set temperature and the room temperature.

Such normal operation is performed based on the transmission and reception of signals between each remote controller 8 and the heat source device 3, and each hot water mat 2 (2a, 2b) is operated independently of each other. .

Next, the trial operation method will be explained.
This test operation is started by turning on the test operation switch 14 provided in the heat source device 3. Prior to the start of the test operation, a control signal is output from the microcomputer 13 of the heat source device 3 to the driver 12. As one of the thermal valves 7 is turned on and the hot water pump 4 is driven, unheated heating water is supplied to the hot water mat 2 corresponding to the opened thermal valve 7 to fill the water. When the water filling operation on the all-temperature water mat 7 is completed, the “test operation mode signal”, the “water filling completion signal”, and the “test operation ON signal” are sent from the heat source device 3 to the selected one remote controller 8. While being sent out, the burner in the heat source unit 3 is ignited to heat the heating water to a predetermined temperature, and the heating water corresponds to the selected remote controller 8. Drive signal to Netsudoben 7 is transmitted,
While this thermal valve 7 is turned on, this thermal valve 7
The heated heating water is supplied to the hot water mat 2 to which is connected.

After the initial operation is completed, the remote controller 8 which has received the above signals starts a test operation. The test operation method of the present invention will be described with reference to the process flow shown in FIG. .

This test operation is provided as a sub-routine in the main routine for controlling the entire hot water floor heating system 1. When this test operation is started, it is first determined in step S11 whether or not there is a test operation mode signal. By doing so, it is determined whether or not it is the test operation mode. If it is not the test operation mode, the process proceeds to step S12 to perform the normal operation processing, and if it is the test operation mode, the process proceeds to step S13.

In step S13, it is confirmed whether or not the trial operation completion flag is present. If the trial operation completion flag is present, the process returns to the main routine.

If it is determined in step S13 that there is no test operation completion flag, step S14
Then, it is judged whether or not the trial operation mode signal confirmed in step S11 is received for the first time, and if it is the first time, the process proceeds to step S15.
When the current bed temperature TY0 detected by the bed temperature thermistor 24 is saved (stored) as the first reference value TY1 and then the process proceeds to step S16, and it is determined that the trial operation mode is not the first time in step S14. In step S14, the process directly goes from step S14 to step S16.

In step S16, the heat source unit 3
It is determined whether or not a water filling completion signal indicating completion of water filling to the hot water mat 2 is received from the heat water mat 2, and the process proceeds to the next step S17 on condition that the water filling completion signal is received, and the heat source unit 3 Then, it is determined whether or not the trial run ON signal for the hot water mat 2 has been received.

If it is determined in step S17 that the test operation signal is received, the current floor temperature TY0 detected by the floor temperature thermistor 24 is stored (stored) as the second reference floor temperature TY2. After that, the process proceeds to the next step S18.

In step S18, a pass judgment is made depending on whether or not the temperature of the floor F has reached the set temperature + TA.

The floor temperature TY0 is the set temperature (the TY2)
Although it is determined that the trial operation has passed by increasing to + TA, the TA is set to, for example, 5 (° C), and when the bed temperature at the start of the trial operation (that is, TY2) is 20 ° C, the floor temperature becomes 25 ° C. When it is reached, it is judged that the trial operation has passed.

Then, in this step S18, the floor F
If it is determined that the temperature has reached the set temperature + TA, the trial run is considered to be successful, and the next step S is performed to complete the trial run.
In step S19, the test operation completion flag is set, and the test operation OK data (test operation normal end data) is sent to the heat source device 3 and then the process returns to the main routine.

When the OK data of the trial run is received by the heat source unit 3, the hot water mat 2 to be subjected to the next trial run.
By outputting a signal instructing the trial run to the remote controller 8 corresponding to, the trial run for each hot water mat 2 is sequentially performed.

On the other hand, when it is determined in step S18 that the floor temperature TY0 has not reached the set temperature + TA, the process proceeds to step S20, and it is determined whether a predetermined time (for example, 50 minutes) has elapsed from the start of the test operation. If it is determined that the time has not yet elapsed, the process returns to the main routine to continue the measurement operation. If it is determined that the predetermined time has elapsed, the process proceeds to step S21 and error processing is performed. Be done.

Here, even if a predetermined time has elapsed, the floor temperature TY0
When the temperature does not reach the set temperature + TA, the heating water supplied from the heat source unit 3 is supplied to the hot water mats 2 other than the hot water mat 2 which is the target of the test operation, or the target of the test operation. Hot water mat 2
There is a possible cause such as transmitting and receiving signals to and from the remote controller 8 that does not correspond to the above. In the former case, it is determined as incorrect piping, and in the latter case, incorrect wiring is determined. Information is transmitted to the heat source device 3 in step S21, is stored in the heat source device 3, and after the test operation for the hot water mat 2 is stopped, the target of the next test operation is set from the heat source device 3. The signal for starting the trial run is transmitted to the remote controller 8 corresponding to the hot water mat 2
The test run is performed.

On the other hand, from step S17 to step S
The second reference room temperature TR2 and the second reference bed temperature TY2 stored during the transition to 18 may be the values stored in step S15.

Further, if it is determined in step S16 that the water filling completion signal has not been received, and if it is determined in step S17 that the test operation ON signal has not been received, the process proceeds to step S22. , It is determined whether or not the last time the trial operation ON signal was received, and if it is the reception state, step S
If it is not in the reception state, the process proceeds to step S24.

In step S23, after all the data of the trial run are cleared, the process returns to the main routine. That is, the standby state for receiving the water filling completion signal and the trial operation ON signal is set.

In step S24, the same judgment as in step S18 is made, that is, the bed temperature TY.
It is determined whether or not 0 has reached the set temperature + TA. If the set temperature + TA has not been reached, it is determined to be in the state of waiting for the start of test operation, and the process returns to the main routine.

Further, when the floor temperature TY0 reaches the abnormal temperature TB in step S24, it is determined that the hot water mat 2 is not the target of the trial run according to the determination in step S16 or step S17 and step S22. Despite being judged, the floor temperature TY
0 has reached the abnormal temperature TB or higher, and in this case, it is determined to be incorrect piping or incorrect wiring, and the next step S25.
Then, the error processing is performed.

This error processing and the subsequent processing are almost the same as those in step S21. In this case, although not shown, error data indicating that the piping is incorrect or the wiring is incorrect is transmitted to the heat source unit 3. When the heat source device 3 receives the error data from the remote controller 8, the heat source device 3 promptly terminates the test operation of the remote controller 8 in which the error has occurred, and then shifts to the next test operation.

In this embodiment, as described above,
The processing of step S18, step S19, step S20, and step S21 is the processing of the test operation pass / fail judgment means 34, and step S24 and step S25 are the processing of the abnormality detection means 35.

As described above, in the hot water floor heating system 1 according to the present embodiment, the abnormality detecting means 35 provided in the trial operation pass / fail judgment means 34 causes the temperature to reach the abnormal temperature TB during the trial operation of the other hot water mats 2. When the rise is detected, the abnormality determination is promptly performed, so that it is possible to reliably detect erroneous piping or erroneous wiring in a short time.

The shapes, dimensions, etc. of the constituent members shown in each of the above embodiments are merely examples, and can be variously changed based on design requirements and the like.

[0054]

As described above, according to the first aspect of the present invention.
According to the hot water floor heating apparatus described in (1), when the abnormality detection means provided in the trial operation pass / fail judgment means causes the floor temperature to rise by the floor temperature detector not corresponding to this controller during the trial operation by another remote controller. In addition, since the abnormality determination is performed promptly, it is possible to reliably and easily detect erroneous pipes and wiring during trial operation.

Since incorrect piping and incorrect wiring can be detected in a short time, efficient test operation can be performed by shortening the test operation time and reducing the fuel and electricity costs required for the test operation.

[Brief description of drawings]

FIG. 1 is an overall system configuration diagram of a hot water floor heating apparatus of the present invention.

FIG. 2 is a block diagram showing a control system of the hot water floor heating apparatus according to the first embodiment of the present invention.

FIG. 3 is an external perspective view showing a remote controller of the hot water floor heating apparatus of the present invention.

FIG. 4 is a schematic diagram showing a relationship between a remote controller and a radiator of the hot water floor heating apparatus of the present invention.

FIG. 5 is a processing flow chart during normal operation of the hot water floor heating apparatus of the present invention.

FIG. 6 is a process flow chart at the time of test operation in the first embodiment of the present invention.

[Explanation of symbols]

 1.40 Hot water floor heating system 2 (2a, 2b) Hot water mat (radiator) 3 Heat source unit 7 (7a, 7b) Thermal valve 8 (8a, 8b) Remote controller 13 Microcomputer 23 Room temperature thermistor 24 Floor temperature thermistor ( Floor temperature detector) 31 Set temperature display section 32 Microcomputer 34 Test operation pass / fail judgment means 35 Abnormality detection means F Floor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yutaka Okumura 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Hachiro Takemi, 2-5 Keihan Hondori, Moriguchi City, Osaka Prefecture No. 5 Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A heat source unit for supplying heating water to a plurality of radiators installed on the floor of the room, and a remote unit installed in the room corresponding to each of the radiators for controlling the operation of the heat source unit. A controller and a floor temperature detector that is attached to each remote controller and that detects the temperature of the floor surface, and at the time of test operation, based on the detection signal from each floor temperature detector, the floor surface temperature is the set temperature. It is provided with a trial-running pass / fail judgment means for judging whether or not the trial run has been completed, and the trial-running pass / fail judgment means detects and stores the initial bed temperature at the start of the trial run by one bed temperature detector. However, during a trial run of another remote controller that is not connected to this floor temperature detector, an abnormality detection hand that determines an abnormality when a rise in the floor temperature above the specified initial floor temperature is detected. A hot water floor heating system characterized by the provision of steps.