JP2010071525A - Method of operating bath system and the bath system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten time required for trial operation without making a user feel uncomfortable due to vibration noise etc. of a pump. <P>SOLUTION: A circulation path J for hot water is provided between a heat source machine D and a bathtub 5. By a circulating pump 26 provided in the circulation path J, hot water heated by heat exchangers N1, N2 is supplied to the bathtub 5 via a going path 24, and is returned from the bathtub 5 to the heat exchangers N1, N2 via a return path 23. This bath system can execute the trial operation for operating the circulating pump 26 to circulate hot water in the bathtub 5 in the circulation path J and normal operation for operating the circulating pump 26 to circulate hot water in the bathtub 5 in the circulation path J. As the circulation pump 26, a rotating speed variable type pump is adopted. During the normal operation, the circulating pump 26 is operated at first rotating speed and during the trial operation, the circulating pump 26 is operated at second rotating speed higher than the first rotating speed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention comprises a hot water circulation path between a heat source machine equipped with a heat exchanger and a bathtub, and hot water heated by the heat exchanger is routed through an outgoing path by a circulation pump provided in the circulation path. And a test operation that is configured to be supplied to the bathtub and to be returned from the bathtub to the heat exchanger via a return path, and operates the circulation pump to circulate hot water in the bathtub in the circulation path; The present invention relates to a method for operating a bath facility that is configured to execute a normal operation in which the circulation pump is operated to circulate hot water in the bathtub in the circulation path, and the bath facility.

In the bath equipment as described above, as a normal operation, for example, a memorial operation for controlling the temperature of the hot water in the bathtub to the set temperature, or the water level of the bathtub is controlled to the set water level, and the temperature of the hot water in the bathtub is set to the set temperature. The bath is controlled automatically.
In the memorial operation, the circulating pump is operated, the hot water returned from the bathtub through the return path is heated by the heat exchanger, and the heated hot water is supplied to the bathtub through the forward path, The temperature of hot water in the bathtub is controlled to the set temperature.
In bath automatic operation, on the basis of detection information such as a water level detection means provided in the circulation path, hot water is supplied to the bathtub so that the water level of the bathtub becomes the set water level, and by performing the above memorial operation, While controlling the water level of a bathtub to a setting water level, the temperature of the hot water of a bathtub is controlled to setting temperature. Further, in a facility provided with water flow detection means for detecting whether or not the flow rate of hot water in the circulation path is equal to or higher than a predetermined value, the water level of the bathtub is determined from the detection information of the water flow detection means when the circulation pump is operated. It can be determined whether or not the position is higher than the connection location of the circulation path. Therefore, in such a facility, in bath automatic operation, it is determined whether the water level of the bathtub is higher than the connection location of the circulation path by operating the circulation pump, and based on the determination result, Hot water can be supplied to the bathtub while checking whether the bathtub has remaining hot water or the current water level of the bathtub, and the water level of the bathtub can be efficiently controlled to the set water level.

  The test operation is performed at the time of installation of equipment before normal operation, for example, to confirm whether each operation in normal operation can be performed properly. Moreover, in the bath automatic operation, the water level of the bathtub is controlled to the set water level, but the amount of hot water required to control the water level of the bathtub to the set water level varies depending on the size of the bathtub. Therefore, in a conventional facility that performs automatic bath operation, a set water level corresponding to the bathtub is stored by detecting the water level in a state where hot water is supplied to the bathtub in the trial operation (for example, Patent Document 1). reference.). In this conventional facility, as a test run, hot water is supplied to the bathtub, and the water level of the bathtub is higher than the connection point of the circulation path based on the detection information of the water flow detection means when the circulating pump is operated after the hot water is supplied. While repeatedly performing the hot water supply / determination process to determine whether or not it is a position, the water level of the bathtub is controlled to the determined water level, the set water level is obtained from the water level detected at that time, and the obtained set water level is determined. I remember it.

JP 2002-39615 A

  In the above conventional bath facilities, normal operation such as memorial operation or automatic bath operation is performed by operating the circulation pump, but the time until the temperature of the bathtub is quickly raised to the set temperature is minimized. There is a demand to shorten it. Therefore, in order to satisfy the requirement, it is conceivable to set the rotation speed of the circulation pump to a high rotation speed. In this case, however, the vibration of the circulation pump itself becomes large, and the user makes the vibration sound, etc. You will feel uncomfortable. Therefore, in the conventional bath facilities, a high rotation speed has not been set as the rotation speed of the circulation pump.

  On the other hand, since the test run is usually performed by an operator at the time of installation of the equipment, in order to meet the demand for shortening the time required for the test run, even if the rotational speed of the circulation pump is increased, the user can vibrate the pump. Sounds are not uncomfortable. However, the conventional bath equipment employs a constant rotation speed type in which the circulation pump operates at a constant rotation speed. Therefore, if the rotation speed of the circulation pump is increased, the user can perform normal operation. However, the vibration sound of the pump will be uncomfortable. Therefore, in the conventional bath equipment, the rotation speed of the circulation pump cannot be set at a high speed, and the demand for shortening the time required for the trial operation cannot be satisfied. Further, in the bath facility described in Patent Document 1, since the hot water supply / determination process for operating the circulation pump is repeatedly performed as a trial operation, it takes time for each of the hot water supply / determination process, and the time required for the trial operation is long. It was.

  The present invention has been made paying attention to such a point, and its purpose is to provide a bath facility that can shorten the time required for trial operation without causing the user to feel uncomfortable vibration noise of the pump. It is in providing a driving method and bath facilities.

In order to achieve this object, the characteristic configuration of the method for operating a bath facility according to the present invention includes a hot water circulation path between a heat source unit equipped with a heat exchanger and a bathtub, and the circulation provided in the circulation path. The circulating pump is configured such that hot water heated by the heat exchanger is supplied to the bathtub through an outward path and is returned from the bathtub to the heat exchanger via a return path. The bath facility is configured such that a test operation for circulating hot water in the bathtub in the circulation path and a normal operation for circulating the hot water in the bathtub in the circulation path by operating the circulation pump are operated. Driving method,
A variable rotational speed pump is employed as the circulation pump. When the normal operation is performed, the circulation pump is operated at a first rotation speed. When the test operation is performed, the circulation pump is operated at a speed higher than the first rotation speed. Are also operated at a high second rotational speed.

  According to this characteristic configuration, when the test run is performed, the circulation pump is operated at the second rotation speed that is higher than the first rotation speed, so that the time required for the test run can be shortened. Moreover, when performing a normal operation such as a memorial operation or an automatic bath operation, the highest rotation speed is set as the first rotation speed in such a range that the user does not feel uncomfortable with the vibration sound of the pump. The circulation pump can be operated at its first rotational speed. As a result, the user does not feel uncomfortable pump vibrations, etc., and the trial operation is required while responding to the request to quickly increase the temperature of the bathtub and control it to the set temperature as much as possible. A reduction in time can be realized.

The characteristic configuration of the bath facility according to the present invention includes a hot water circulation path between a heat source machine equipped with a heat exchanger and a bathtub, and is heated by the heat exchanger by a circulation pump provided in the circulation path. The hot water is supplied to the bathtub through an outward path and is returned to the heat exchanger from the bathtub through a return path, and the circulating pump is operated to circulate the hot water in the bathtub. A bath facility provided with control means capable of performing a trial operation to circulate in a passage and a normal operation to circulate hot water in the bathtub in the circulation passage by operating the circulation pump,
As the circulation pump, a rotation speed variable type pump is adopted, and when the control means performs the normal operation, the circulation pump is operated at a first rotation speed, and when the test operation is performed, the circulation pump is It is in the point comprised so that it may operate | move at the 2nd rotational speed higher than a 1st rotational speed.

  According to this characteristic configuration, as described in the operation method of the bath facility according to the present invention, when performing a trial operation, the circulation pump can be operated at a second rotational speed higher than the first rotational speed, In addition, when performing a normal operation such as a memorial operation or an automatic bath operation, the circulation pump can be operated at the first rotational speed, so that the user does not feel the pump's vibration sound uncomfortable and the bathtub. The time required for the trial run can be shortened while responding to the request to minimize the time required to quickly increase the temperature of the gas and control it to the set temperature.

  A further characteristic configuration of the bath facility according to the present invention includes hot water supply means for supplying hot water to the bathtub through the circulation path, and water flow detection for detecting whether the flow rate of the hot water in the circulation path is equal to or greater than a predetermined value. Means for supplying detection information of the water flow detection means when the hot water supply means supplies hot water to the bathtub as the trial operation and the circulating pump is operated after the hot water supply. Based on the above, the hot water supply / determination process for determining whether or not the water level of the bathtub is higher than the connection point of the circulation path is repeated, and the water level of the bathtub is controlled to the set water level or the hot water of the bathtub In the point which is comprised so that the filling operation for trial operation which controls the amount of water to the setting amount of hot water may be performed.

  According to this characteristic configuration, the control means performs a hot water filling operation for trial operation in which the hot water supply / determination process is repeatedly performed as a trial operation. In each of the hot water supply / determination process, the circulation pump is operated at a speed higher than the first rotational speed. It can be operated at the second rotational speed. And since the water level of a bathtub is controlled to a setting water level by performing the hot water filling operation for trial operation, the water level at that time can be memorize | stored as a setting water level. Therefore, in facilities that perform automatic bath operation, the water level of the bathtub can be controlled using the stored water level in automatic bath operation, so that the water level of the bathtub is appropriately set to the set water level regardless of the size of the bathtub. While being controllable, the time required for the trial run can be effectively shortened.

  According to a further characteristic configuration of the bath facility according to the present invention, the control means operates the circulating pump as the test operation, and the hot water returned from the bathtub through the return path is supplied to the heat exchanger. It is the point which is comprised so that it may heat and the chasing operation which supplies the heated hot water to the said bathtub via the said going path may be performed.

  According to this feature configuration, by performing the memorial operation in the trial operation, it is possible to confirm whether the memorial operation can be performed properly, while shortening the time required for the memorial operation. it can. Therefore, it is possible to shorten the time required for the trial operation while performing a useful test operation.

An embodiment of a bath facility according to the present invention will be described with reference to the drawings.
[First Embodiment]
As shown in FIG. 1, this bath facility has a heat source device D provided with a heat exchanger, and a circulation path for circulating hot water heated by the heat source device D between the heat source device D and the bathtub 5. J etc. are comprised.

  The heat source unit D heats water from a water supply channel 1 connected to a water pipe for household use by a gas combustion burner g1, and supplies hot water after heating to a water supply channel 3 having a hot water tap 2 at the tip. Hot water supply operation unit A to be supplied, hot water in the bathtub 5 is heated by the gas combustion type burner g2 and chased, and an operation control unit U as control means for controlling the operation of the heat source device D. The main remote controller R1 and the bathroom remote controller R2 are provided. The main remote controller R1 is provided near the kitchen, etc., and the bathroom remote controller R2 is provided in the bathroom.

The hot water supply operation unit A and the memorial operation unit B will be described.
Both the hot water supply operation unit A and the memorial operation unit B are a main heat exchanger N1 for heating hot water and a latent heat recovery type heat exchanger (hereinafter sometimes referred to as a latent heat recovery heat exchanger). N2 is provided. That is, in this embodiment, the heat exchanger is composed of a main heat exchanger N1 and a latent heat recovery heat exchanger N2. The main heat exchanger N1 and the latent heat recovery heat exchanger N2 are arranged in a state where the latent heat recovery heat exchanger N2 is located on the lower side in the combustion exhaust gas flow direction from the burners g1 and g2 to the exhaust passage 7. Are arranged side by side.
Then, in the latent heat recovery heat exchanger N2, the hot water is heated mainly by the latent heat of the combustion exhaust gas of each burner g1, g2, and in the main heat exchanger N1, mainly by the sensible heat of the combustion exhaust gas of each burner g1, g2. The hot water heated by the latent heat recovery heat exchanger N2 is heated.

  Each latent heat recovery heat exchanger N2 produces drainage that is acidic condensate that is combustion product water, and this drain is collected by a drain pan 8 and supplied to a neutralizer 9. After being neutralized, the water is stored in the drain tank 6. Although not described in detail, the neutralizer 9 is loaded with a neutralizing agent (for example, calcium carbonate) that neutralizes the drain. The drain stored in the drain tank 6 is configured to be discharged at a predetermined time.

  A gas supply path G for supplying general household fuel gas to the burners g1 and g2 is connected to the hot water supply operation section A and the memory operation section B. The gas supply path G includes a fuel gas supply amount. There are provided an electromagnetic gas proportional valve 10 for adjusting the pressure and an intermittent valve 11 for intermittently supplying the fuel gas. Further, the hot water supply operation unit A and the remedy operation unit B are provided with combustion fans 12 for supplying combustion air to the burners g1 and g2, and further, although not shown, the burners g1 and g2. There are provided an ignition igniter for performing an ignition operation and a frame rod for detecting whether or not ignition has been performed.

  The water supply path 1 is connected to the hot water inlet of the latent heat recovery heat exchanger N2 in the hot water supply operating section A, and the hot water supply path 3 is connected to the hot water outlet of the main heat exchanger N1 in the hot water operating section A. The water supplied through 1 is heated in the latent heat recovery heat exchanger N2 and the main heat exchanger N1, and is supplied to the hot water tap 2 through the hot water supply path 3.

The water supply channel 1 is provided with a water supply thermistor 13 that detects the temperature of the water supply and a water amount sensor 14 that detects the amount of water supply. A hot water supply path 3 is connected by a water supply bypass path 15 so as to bypass the heat exchangers N1 and N2.
A mixing valve 17 that adjusts the mixing ratio between the amount of hot water from the main heat exchanger N1 and the amount of water from the water supply bypass passage 15 is provided at a connection point between the hot water supply passage 3 and the water supply bypass passage 15. A hot water thermistor 16 for detecting the temperature of hot water sent from the main heat exchanger N1 is provided upstream of the connection location of the bypass passage 15 and is downstream of the connection location of the water supply bypass passage 15 in the hot water supply passage 3. In order from the upstream side, a hot water thermistor 18 for detecting the temperature of hot water after being mixed by the mixing valve 17, a water proportional valve 19 for adjusting the amount of hot water, an interrupt water amount sensor for detecting an interruption of general hot water. 20 is provided.

The circulation adapter 25 provided in the bathtub 5 and the hot water inlet of the latent heat recovery heat exchanger N2 in the operation unit B for remedy are connected by a bathtub return path 23 as a return path. The hot water outlet portion of the main heat exchanger N1 in the operation section B is connected by a bathtub forward path 24 as a forward path, and the bathtub return path 23 and the bathtub forward path 24 circulate hot water in the bathtub. It is constituted as a circulation path J. A remedy circulation pump 26 (corresponding to a circulation pump) is provided in the bathtub return path 23 so that hot water in the tub 5 is sucked and sent to the latent heat recovery heat exchanger N2 of the remedy operation section B. ing.
The hot water in the bathtub 5 flows into the latent heat recovery heat exchanger N2, the main heat exchanger N1, and the bathtub 5 through the bathtub forward path 24 and the bathtub return path 23 by the flow action of the memory circulation pump 26. The hot water heated by the latent heat recovery heat exchanger N2 and the main heat exchanger N1 is circulated and supplied to the bathtub 5.

  In the bathtub return path 23, a water level sensor 27 that detects the water level of the bathtub 5 by detecting pressure in order from the upstream side, the temperature of hot water taken out from the bathtub 5, that is, the temperature of hot water in the bathtub 5 is detected. The bathtub return temperature thermistor 28, the recirculation circulation pump 26, and the water flow switch 30 are provided, and the bathtub outlet temperature thermistor 31 for detecting the temperature of the hot water supplied to the bathtub 5 is provided in the bathtub outlet path 24. Is provided. Here, a variable speed pump is adopted as the circulation pump 26 for remembrance. The water flow switch 30 corresponds to water flow detection means, and is turned OFF when the flow rate of the circulation path J is less than a predetermined value, and is turned ON when the flow rate exceeds a predetermined value, and the flow rate of the circulation path J is a predetermined value. It is comprised so that it may become above.

  A hot water supply path 22 for supplying hot water from the hot water supply path 3 to the bathtub 5 is branched from a location between the water proportional valve 19 and the interrupting water amount sensor 20 in the hot water supply path 3. The bath return path 23 is connected to a location between the recirculation circulation pump 26 and the bath return temperature thermistor 28. This hot water filling path 22 is provided with a hot water solenoid valve 32 for opening and closing the hot water filling path 22 and a hot water check valve 33 in order from the upstream side. An air layer forming hopper 34 is interposed between the valve 33 and the valve 33.

  Then, when the hot water solenoid valve 32 is opened, the hot water heated by the hot water supply operation part A and supplied through the hot water supply path 22 passes through the bathtub return path 23 and the latent heat of the hot water operation part B and the hot water operation part B. Hot water supplied to both sides of the recovered heat exchanger N2 and supplied through the hot water filling passage 22 is supplied to the bathtub 5 through both the bathtub outward passage 24 and the bathtub return passage 23. As a result, the hot water supply means is constituted by the hot water supply operating section A and the hot water filling path 22.

The operation control unit U that controls the operation of the bath facility is configured to be able to communicate with the main remote controller R1 and the bathroom remote controller R2.
The main remote controller R1 and the bathroom remote controller R2 include an operation switch 37 for instructing start and stop of operation, an automatic bath switch 38 for instructing automatic bath operation, a hot water temperature setting switch 39 for setting a general hot water temperature, and hot water in the bathtub 5 Various switches such as a bath temperature setting switch 40 for setting the set temperature and a chasing operation switch 41 for commanding chasing operation are provided. Although not shown, a display unit for displaying various information such as a set temperature is also provided.

  The operation control unit U is in a controllable state when the operation switch 37 is turned on, and when the hot water tap 2 is opened, the operation control unit U has a hot water supply set temperature set by the hot water supply temperature setting switch 39 from the hot water tap 2. A general hot water supply operation for supplying hot water is performed. When the memory operation switch 41 is turned on, the operation control unit U performs a memory operation that tracks the temperature of the hot water in the bathtub 5 to the bathtub set temperature set by the bathtub temperature setting switch 40. When the automatic switch 38 is turned on, an automatic bath operation is performed in which the water level of the bathtub 5 is controlled to the set water level and the temperature of the hot water in the bathtub 5 is controlled to the set temperature set by the bathtub temperature setting switch 40.

The operation control unit U performs various operations such as general hot water supply operation, memorial operation, automatic bath operation, etc. as normal operation, but confirms whether various operations are properly performed at the time of installation of equipment, etc. To do a trial run. Moreover, in this equipment, since the bath automatic operation which controls the water level of the bathtub 5 to a setting water level is performed, the setting water level corresponding to the installed bathtub 5 is memorize | stored in trial operation. As a result, when performing bath automatic operation as normal operation, the water level of the bathtub can be controlled to the set water level based on the set water level memorized in the trial operation, and the water level of the bathtub can be set regardless of the size of the bathtub. Can be controlled appropriately.
The trial run can be performed not only when the equipment is installed, but also when the stored set water level is reset, for example. Then, the operation control unit U performs a test operation by turning on the automatic bath switch 38 when the set water level is not stored.

[Setting the rotational speed of the memory circulation pump]
The bath facility according to the present invention employs a variable rotational speed pump as the remedy circulation pump 26. As the rotational speed of the remedy circulation pump 26, the rotational speed at the time of performing the test operation and the normal operation are used. The rotation speed when performing is set to be different.
That is, as shown in the flowchart of FIG. 2, the operation control unit U determines whether to perform a trial operation by confirming whether the bath automatic switch 38 is turned on in a state where the set water level is not stored. Then, when performing the test operation, the operation control unit U sets the rotational speed of the circulation pump 26 for remedy to the second rotational speed higher than the first rotational speed and performs the remedy at the set second rotational speed. The circulating pump 26 is activated. Further, when performing normal operation without performing trial operation, the operation control unit U sets the rotation speed of the circulation pump 26 for remedy to the first rotation speed and performs the circulation pump for remedy at the set first rotation speed. 26 is activated. Here, the second rotational speed is set to a rotational speed that is higher than the first rotational speed by 50% of the first rotational speed, for example. The rotational speed is set as high as possible within a range that does not make the user feel uncomfortable.

  By setting the rotational speed of the circulation pump 26 in this way, the trial circulation pump 26 can be operated at a high second rotational speed when performing a trial operation, and the time required for the trial operation can be reduced. Shortening can be achieved. In addition, when the normal operation is performed, the chasing circulation pump 26 can be operated at the first rotational speed, the vibration of the chasing circulation pump 26 itself is increased, and the user can vibrate the pump. Without being uncomfortable, it is possible to respond to a request to shorten the time required to quickly increase the temperature of the bathtub and control it to the set temperature as much as possible.

[Test run]
The operation in the trial run will be described based on the schematic diagram showing the water level of the bathtub in FIG. 3 and the flowchart in FIG. 4.
The operation control unit U performs circulation determination processing after performing hot water supply processing in which the set supply amount of hot water supplied to the bathtub 5 is set to 10 liters, for example (# 1, 2). Here, the hot water supply process and the circulation determination process correspond to the hot water supply / determination process.

  To explain the hot water supply process, the operation control unit U drives the combustion fan 12 in the hot water supply operation unit A, then opens the intermittent valve 11 and ignites the burner g1 by the igniter, and the bathtub temperature setting switch. 40, the detected temperature of the hot water thermistor 18 is based on the detected water amount of the water amount sensor 14, the detected water temperature of the hot water thermistor 13, the detected temperature of the hot water thermistor 18, and the like. The opening degree of the gas proportional valve 10 and the opening degree of the mixing valve 17 are adjusted so that the set temperature is reached. Then, the operation control unit U opens the hot water solenoid valve 32 to supply hot water to the bathtub 5 while monitoring the supply amount of hot water supplied to the bathtub 5 based on the detection information of the water amount sensor 14. When the monitored supply amount reaches the set supply amount (10 liters in this case), the hot water solenoid valve 32 is closed to stop the combustion of the burner g1 and the hot water supply process is terminated. .

If it demonstrates about a circulation determination process, the operation control part U will operate the circulation pump 26 for remedy, and will determine whether the water flow switch 30 is set to ON or OFF. Here, as described above, since the rotational speed of the circulation pump 26 for tracking when performing the trial operation is set to the second rotational speed, the circulation pump 26 for tracking is operated at the second rotational speed.
If the water level in the bathtub 5 is lower than the installation position of the circulation adapter 25 (corresponding to the connection point of the circulation path J), no water flow is generated in the circulation path J even if the recirculation circulation pump 26 is operated, and the water flow switch 30 is turned off. Will remain. On the other hand, if the water level of the bathtub 5 is higher than the installation position of the circulation adapter 25, when the memory circulation pump 26 is operated, a water flow is generated in the circulation path J and the water flow switch 30 is turned on. Therefore, in this circulation determination process, it is determined whether the water level of the bathtub 5 is lower or higher than the installation position of the circulation adapter 25. In FIG. 4, when the water flow switch 30 is ON, it is abbreviated as “ON”, and when the water flow switch 30 is OFF, it is abbreviated as “OFF”.

  Since the test operation is normally performed in a state where there is no hot water in the bathtub 5, the water level of the bathtub 5 does not become higher than the installation position of the circulation adapter 25 just by supplying 10 liters of hot water. When it is confirmed in 2 that the water flow switch 30 is OFF, after performing the hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to 60 liters, for example, the circulation determination process is performed (# 3, 4). . Conversely, if the water flow switch 30 is ON in # 2, the operation control unit U makes an error (# 5).

  After confirming that the water flow switch 30 is ON in # 4, the operation control unit U performs a hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to 10 liters, for example, and then performs a circulation determination process. If it confirms that the water flow switch 30 is ON, the water level of the bathtub 5 at that time is detected by the water level sensor 27, and the detected water level is stored as the reference water level H1 (# 6-8). Here, as shown in FIG. 3, since a total of 80 liters of hot water of 10 liters, 60 liters and 10 liters is supplied to the bathtub 5, the reference water level H1 is a water level corresponding to the amount of hot water of 80 liters. It becomes.

  Next, the operation control unit U detects the water level of the bathtub 5 at that time with the water level sensor 27 after performing a hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to 40 liters, for example. As shown in FIG. 3, the detected water level is stored as a water level H2 (# 9, 10). The operation control unit U calculates the remaining amount up to the set water level based on the stored reference water level H1 and water level H2 (# 11). Since 40 liters of hot water is supplied, the difference in water level between the reference water level H1 and the water level H2 is a water level increase amount corresponding to the 40 liters. Therefore, the magnitude | size of the bathtub 5 is calculated | required from the water level rise amount, and the residual amount required in order to raise the water level of the bathtub 5 from the water level H2 to the setting water level is calculated | required using the magnitude | size of the calculated bathtub 5. FIG.

The operation control unit U detects the current water level of the bathtub 5 at that time by the water level sensor 27 after performing the hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is determined, and When it is confirmed that the detected current water level is equal to or higher than the set water level, the current water level is stored as the set water level (# 12 to 14).
In this way, the operation control unit U repeatedly performs the hot water supply process and the circulation determination process, performs the hot water operation for trial operation for controlling the water level of the bathtub 5 to the set water level, and the bathtub in which the detected water level is installed. It is stored as a set water level corresponding to 5.

Returning to # 4, when the water flow switch 30 does not turn ON in # 4, the operation control unit U sets the set supply amount of hot water supplied to the bathtub 5 to, for example, 20 liters until the water flow switch 30 is turned ON. After performing the supply process, the operation of performing the circulation determination process is repeated (# 15, 14). This is because, depending on the size of the bathtub 5, even if 70 liters is supplied from a state where there is no hot water in the bathtub 5, the water level of the bathtub 5 may not be higher than the installation position of the circulation adapter 25.
Returning to # 7 and # 13, the operation control unit H makes an error when the water flow switch 30 is not turned ON at # 7 and when the current water level does not exceed the set water level at # 13 (# 16, 17).

  When the operation control unit U stores the set water level, the operation control unit U performs a memorial operation (# 18). The chasing operation will be described. First, the operation control unit U activates the chasing circulation pump 26 to pass hot water in the bathtub 5 through the bathtub return path 23 and the bathtub outbound path 24 (for example, several times). The temperature of the hot water in the bathtub 5 is detected by the bathtub return temperature thermistor 28. At this time, the memory circulation pump 26 is operated at the second rotational speed. Then, when the detected temperature detected by the bathtub return temperature thermistor 28 is lower than the set temperature set by the bathtub temperature setting switch 40, the operation control unit U continues to set the second circulation pump 26 for remedy. After operating at the rotational speed and driving the combustion fan 12 in the remedy operation section B, the intermittent valve 11 is opened and the burner g2 is ignited by the igniter, and the temperature detected by the bath temperature thermistor 31 is detected. Adjusts the opening of the gas proportional valve 10 so that the temperature becomes a set hot water temperature (for example, 60 ° C.). Then, the operation control unit U performs the memorial operation until the temperature detected by the bathtub return temperature thermistor 28 reaches the set temperature by the bath temperature setting switch 40, and when the temperature of the hot water in the bath 5 becomes equal to or higher than the set temperature. The operation circulation pump 26 is stopped, the intermittent valve 11 is closed, the combustion of the burner g2 is stopped, the combustion fan 12 is stopped, and the chasing operation is finished.

  When the operation control unit U ends the chasing operation, the operation control unit U subsequently performs a keep operation for a preset keep operation time (# 19). In this keep operation, the operation control unit U performs hot water supply processing so that the hot water level in the bathtub 5 is equal to or higher than the set water level, and the temperature of the hot water in the bathtub 5 is set by the bathtub temperature setting switch 40. Follow-up operation is performed so that the set temperature is reached, and the keep operation ends when the keep operation time elapses. Also in the chasing operation in the keep operation, the chasing circulation pump 26 is operated at the second rotational speed.

〔Normal operation〕
Hereinafter, the operation in the normal operation will be described.
The operation control unit U performs a general hot water supply operation, a memorial operation, an automatic bath operation, and the like as a normal operation, but the memorial operation is the same as the memorial operation in the above-described test operation, and thus the description thereof is omitted. .

[General hot water supply operation]
The general hot water supply operation will be described. When the hot water tap 2 is opened and the amount of water detected by the water amount sensor 14 exceeds a predetermined amount, the operation control unit U drives the combustion fan 12 in the hot water supply operation unit A and then intermittently. The valve 11 is opened and the burner g1 is ignited by the igniter, the set temperature by the hot water supply temperature setting switch 39, the detected water amount of the water amount sensor 14, the detected water temperature of the water supply thermistor 13, and the detected temperature of the hot water thermistor 18 Based on the above, the opening degree of the gas proportional valve 10 and the opening degree of the mixing valve 17 are adjusted so that the detected temperature of the hot water supply thermistor 18 becomes the temperature set by the hot water supply temperature setting switch 39. When water flow is no longer detected by the water amount sensor 14, the intermittent valve 11 is closed to stop the combustion of the burner g1, and the combustion fan 12 is also stopped to end the general hot water supply operation.

[Automatic bath operation]
The operation in the bath automatic operation will be described based on the flowchart of FIG. Incidentally, the hot water supply process and the circulation determination process are the same as the operations described in the above-described test operation, and thus detailed description thereof is omitted. In FIG. 5, similarly to FIG. 4, when the water flow switch 30 is ON, it is abbreviated as “ON”, and when the water flow switch 30 is OFF, it is abbreviated as “OFF”.

  If the current water level detected by the water level sensor 27 is equal to or lower than the reference water level H1 (see FIG. 3), the operation control unit U performs hot water supply processing in which the set supply amount of hot water supplied to the bathtub 5 is set to 10 liters, for example. After performing the circulation determination process and confirming that the water flow switch 30 is OFF, the circulation determination process is performed after performing the hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to 70 liters, for example. After confirming that the water flow switch 30 is ON, the water level of the bathtub 5 is controlled to be higher than the installation position of the circulation adapter 25 (# 21 to 25).

When the current water level is higher than the reference water level H1 in # 21, the operation control unit U performs a circulation determination process, and confirms that the water flow switch 30 is ON and performs a memorial operation (# 26, 27). Here, as described above, when the normal operation is performed, the remedy circulation pump 26 is set to the first rotation speed. Therefore, in the circulation determination process and the remedy operation, the remedy circulation pump 26 is rotated to the first rotation. Operate at speed.
The operation control unit U proceeds to # 22 when the water flow switch 30 is OFF in # 26.

If the water flow switch 30 is ON in # 23, the operation control unit U performs a hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to, for example, 10 liters, and then performs a circulation determination process. After confirming that the switch 30 is ON, the water level of the bathtub 5 is controlled to be higher than the installation position of the circulation adapter 25 (# 28, 29).
In addition, when the water flow switch 30 is OFF at # 25 and when the water flow switch 30 is OFF at # 29, the operation control unit U sets the set supply amount of hot water supplied to the bathtub 5 to, for example, 20 liters. After performing the hot water supply process (# 30), the process proceeds to # 25.

  In this way, when the operation control unit U controls the water level of the bathtub 5 to be higher than the installation position of the circulation adapter 25, the water level of the bathtub 5 at that time is detected by the water level sensor 27, and the detected water level is detected. Is less than the set water level, the remaining amount required to raise the water level of the bathtub 5 to the set water level is calculated based on the difference between the detected water level and the set water level (# 31, 32). And the operation control part U performs the memorial operation after performing the hot water supply process which set to the residual amount which calculated | required the set supply amount of the hot water supplied to the bathtub 5, and performs a keep operation after that (# 33-). 35). Even in the chasing operation and the chasing operation in the keeping operation, the chasing circulation pump 26 is operated at the first rotational speed.

[Second Embodiment]
The second embodiment is another embodiment of the test operation and the automatic bath operation in the first embodiment. Since other configurations and operations are the same as those in the first embodiment, a test operation and an automatic bath operation in the second embodiment will be described below.

[Test run]
In the second embodiment, a test operation switch that instructs the main remote controller R1 and the bathroom remote controller R2 to execute a test operation is provided, and the operation control unit U performs a test operation when the test operation switch is turned ON. In the second embodiment, the hot water supply process and the circulation determination process, which are hot water supply / determination processes, are repeatedly performed as a test operation, and the hot water operation for trial operation is performed to control the amount of hot water in the bathtub 5 to the set amount of hot water. I have to.

  As shown in the flowchart of FIG. 6, the operation control unit U performs a hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to 10 liters, for example, and then performs a circulation determination process. If it is confirmed that it is OFF, after performing the hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to the remaining amount, the circulation determination process is performed (# 100 to 103). Here, the remaining amount is a remaining amount for setting the amount of hot water in the bathtub 5 to a set amount of hot water (for example, 200 liters), and specifically, (set amount of hot water −10 liters).

And if the operation control part U confirms that the water flow switch 30 is ON in # 103, it will perform a memorial operation (# 104). Further, when the water flow switch 30 is OFF in # 103, the operation control unit U performs a hot water supply process in which the set supply amount of hot water supplied to the bathtub 5 is set to 10 liters, for example, and then performs a circulation determination process. When it is confirmed that the water flow switch 30 is ON, the process proceeds to # 104 (# 105, 106).
The operation control unit U makes an error when the water flow switch 30 is ON in # 101 or when the water flow switch 30 is OFF in # 106 (# 107, 108).

  Also in the second embodiment, similarly to the first embodiment, when the circulation determination process and the tracking operation in the trial operation are performed, the tracking circulation pump 26 is operated at the second rotational speed.

[Automatic bath operation]
As shown in the flowchart of FIG. 7, the operation control unit U first performs a circulation determination process, and when the water flow switch 30 is OFF, the set amount of hot water supplied to the bathtub 5 is set to, for example, 10 liters. After performing the supply process, the circulation determination process is performed (# 110 to 112). Then, when the water flow switch 30 is OFF in # 112, the operation control unit U sets the set supply amount of hot water supplied to the bathtub 5 as the remaining amount for no remaining hot water, assuming that there is no remaining hot water in the bathtub 5. A hot water supply process is performed, and then a chasing operation is performed, followed by a heat retaining operation (# 113 to 115).
Explaining the heat insulation operation, the operation control unit U operates the recirculation circulation pump 26 every time the set time elapses to keep the hot water in the bathtub 5 constant through the bathtub return path 23 and the bathtub outbound path 24. Circulating time (for example, several tens of seconds to several minutes), the temperature of the hot water in the bathtub 5 is detected by the bathtub return temperature thermistor 28, and the detected temperature is set by the bathtub temperature setting switch 40. If it is lower, a memorial operation is performed.

  When the water flow switch 30 is ON at # 110 and # 112, the operation control unit U operates the circulation pump 26 for remedy, assuming that there is remaining hot water in the bathtub 5, and returns the hot water in the bathtub 5 to the bathtub. It circulates for a fixed time (for example, several tens of seconds to several minutes) through the passage 23 and the bathtub outward passage 24, and the temperature of the hot water in the bathtub 5 at that time is detected by the bathtub return temperature thermistor 28 as the first hot water temperature. (# 116). And if the 1st hot water temperature is 25 degreeC or more, the operation control part U will perform the hot water supply process which set the set supply amount of the hot water supplied to the bathtub 5, for example to 20 liters, and conversely, the 1st hot water temperature If it is less than 25 degreeC, the hot water supply process which set the set supply amount of the hot water supplied to the bathtub 5 to 20 liters will be performed (# 117-119).

  Thus, when the hot water supply process is performed, the operation control unit U operates the recirculation circulation pump 26 to pass hot water in the bathtub 5 through the bathtub return path 23 and the bathtub forward path 24 for a certain period of time ( For example, the temperature of hot water in the bathtub 5 at that time is detected as the second hot water temperature by the bathtub return temperature thermistor 28 (# 120). Then, the operation control unit U remained in the bathtub 5 based on the first hot water temperature and the second hot water temperature, and the set supply amount of hot water supplied to the bathtub 5 in the hot water supply process and the temperature of the hot water. The remaining hot water amount is calculated (# 121). The operation control unit U uses the remaining amount of hot water obtained and the amount of hot water that has been supplied to the bathtub 5 so far to make the amount of hot water in the bathtub 5 a set amount of hot water (for example, 200 liters). The amount is determined, the set supply amount of hot water supplied to the bathtub 5 is set to the determined remaining amount for remaining hot water, hot water supply processing is performed, and the process proceeds to # 114 (# 121, 122).

  Also in the second embodiment, similarly to the first embodiment, when the circulation determination process and the tracking operation in the normal operation are performed, the tracking circulation pump 26 is operated at the first rotation speed.

[Another embodiment]
(1) In the first and second embodiments, the first rotation speed and the second rotation speed are set to constant rotation speeds, but the first rotation speed and the second rotation speed can be changed and set. For example, when performing the memorial operation, based on the temperature difference between the temperature of hot water in the bathtub and the set temperature by the bathtub temperature setting switch 40, if the temperature difference is larger than the set temperature difference, the first rotational speed and If the second rotation speed is changed and set to the high speed side and the temperature difference is smaller than the set temperature difference, the first rotation speed and the second rotation speed can be changed and set to the low speed side.

  The present invention comprises a hot water circulation path between a heat source machine equipped with a heat exchanger and a bathtub, and hot water heated by the heat exchanger is routed through an outgoing path by a circulation pump provided in the circulation path. And a test operation that is configured to be supplied to the bathtub and to be returned from the bathtub to the heat exchanger via a return path, and operates the circulation pump to circulate hot water in the bathtub in the circulation path; The normal operation in which the circulating pump is operated to circulate the hot water in the bathtub in the circulation path can be executed, and the time required for the trial operation can be reduced without the user feeling uncomfortable with the vibration sound of the pump. The present invention can be applied to various bath equipment operating methods and bath equipment that can be shortened.

Schematic configuration diagram of bath facilities Flow chart for setting the rotational speed of the circulation pump for remembrance Schematic showing the water level in the bathtub Flowchart of trial operation in the first embodiment Flowchart of bath automatic operation in the first embodiment Flowchart of trial operation in the second embodiment Flowchart of bath automatic operation in the second embodiment

Explanation of symbols

5 Bathtub 22 Hot water supply means (hot water path)
23 Return path (return path for bathtub)
24 Outbound (outbound for bathtub)
26 Circulating pump (circulating pump for remembrance)
30 Water flow detection means (water flow switch)
A Hot water supply means (operation part for hot water supply)
D Heat source machine J Circulation path N1, N2 Heat exchanger U Control means (operation control part)

Claims (4)

A hot water circulation path is provided between the heat source machine including the heat exchanger and the bathtub, and the hot water heated by the heat exchanger is transferred to the bathtub through the outgoing path by a circulation pump provided in the circulation path. And is configured to be returned from the bathtub to the heat exchanger via a return path,
A test operation for operating the circulation pump to circulate hot water in the bathtub in the circulation path and a normal operation for operating the circulation pump to circulate hot water in the bathtub in the circulation path are configured to be executable. A method of operating a bath facility,
As the circulation pump, a variable speed pump is adopted,
When performing the normal operation, the circulation pump is operated at a first rotation speed, and when performing the test operation, a bath facility that operates the circulation pump at a second rotation speed higher than the first rotation speed. how to drive. A hot water circulation path is provided between the heat source machine including the heat exchanger and the bathtub, and the hot water heated by the heat exchanger is transferred to the bathtub through the outgoing path by a circulation pump provided in the circulation path. And is configured to be returned from the bathtub to the heat exchanger via a return path,
Control means capable of performing a trial operation for operating the circulation pump to circulate hot water in the bathtub in the circulation path and a normal operation for operating the circulation pump to circulate hot water in the bathtub in the circulation path. Is a bath facility equipped with
As the circulation pump, a variable speed pump is adopted,
When the control means performs the normal operation, the circulation pump is operated at a first rotation speed, and when the test operation is performed, the circulation pump is operated at a second rotation speed higher than the first rotation speed. Bath facilities that are configured to operate. Hot water supply means for supplying hot water to the bathtub through the circulation path;
Water flow detection means for detecting whether or not the flow rate of hot water in the circulation path is equal to or greater than a predetermined value,
Based on detection information of the water flow detection means when the control means supplies the hot water to the bathtub by the hot water supply means and operates the circulation pump after the hot water supply as the trial operation. The hot water supply / determination process for determining whether or not the water level is higher than the connection point of the circulation path is repeated, and the water level of the bathtub is controlled to the set water level or the hot water amount of the bathtub is set to the set hot water amount. The bath facility according to claim 2, which is configured to perform a hot water filling operation for trial operation to be controlled.   As the test operation, the control means operates the circulating pump to heat the hot water returned from the bathtub through the return path by the heat exchanger, and the heated hot water is passed through the outgoing path. The bath facility according to claim 2 or 3, wherein the bath is configured to perform a chasing operation to be supplied to the bathtub.

Images