JP5886228B2 - Bath system - Google Patents

Description

  The present invention relates to a bath system.

  2. Description of the Related Art Conventionally, there is a bath system with a remedy function including a heat exchanger, a remedy circulation port that opens in a bathtub, and a circulation circuit that connects the heat exchanger and the remedy circulation port (for example, Patent Document 1). reference).

  Some bath systems have a hot water jetting function provided with a hot water jetting outlet for jetting hot water into a bathtub (for example, see Patent Document 2).

Japanese Patent Laid-Open No. 2005-9746 Japanese Patent Laid-Open No. 11-9479

  In such a bath system, when both a memorial function and a hot water jetting function are provided, it is considered that comfort during bathing is improved. However, for example, simply adding a hot water jetting function that spouts hot water drawn from the bathtub into the bathtub as it is in a bath system with a memorial function, while hot water circulates in the hot water circulation circuit during hot water jetting operation. Since the heat is radiated, the temperature of the hot water in the bathtub is lowered.

  Therefore, an object of the present invention is to make it possible to maintain the temperature of hot water in a bathtub even in a hot water jetting operation in a bath system having both a memorial function and a hot water jetting function.

In order to achieve the above object, a bath system according to claim 1 is connected to a memorandum return pipe and a remedy return pipe, and hot water flowing from the remedy return pipe to the remedy forward pipe is supplied to a gas burner. A heat source that heats using heat, a discharge port that is connected to the follow-up outgoing pipe and opens into the bathtub, and an inlet that is connected to the follow-up return pipe and opens into the bathtub A hot water circulation pipe, a hot water jet pipe branching from the hot water outlet pipe, a hot water jet pump provided in the hot water jet pipe, connected to the hot water jet pipe and opened in the bathtub ; and A memorial-side switching state in which a hot water outlet provided at a position higher than the memorial circulation port and a connecting portion between the heat source device in the memorial outgoing pipe and the discharge port are communicated with each other, and the memorial outgoing path A connecting portion of the pipe with the heat source device; A flow path switching valve switches to the hot water spouting side switching state for communicating with the hot water spout through the water jet pipe, from said connecting portion of said heat source unit in the add焚往path pipe and said add焚復pipe additionally A washing water supply unit for supplying washing water flowing through the forward pipe and the return pipe, and a circulation pump provided in the heat source device for circulating the hot water to the additional pipe and the return pipe; A hot water jet mode in which the circulation pump and the hot water jet pump are operated in a state where the flow path switching valve is in the hot water jet side switching state, and the gas burner in a state where the flow path switching valve is in the tracking side switching state. A control unit that operates the circulation pump, and a pipe cleaning mode that operates the cleaning water supply unit so that the cleaning water is supplied to the tracking forward pipe and the tracking return pipe. The control unit includes, as the pipe cleaning mode, a memory circuit cleaning mode in which the cleaning water supply unit is operated in a state in which the flow path switching valve is in the tracking side switching state, and the flow path switching. A hot water jet circuit cleaning mode for operating the cleaning water supply unit in a state in which the valve is switched to the hot water jet side, and the pipe cleaning mode is set when the bathtub is drained. When the water level reaches the water level that exposes the hot water spout, the hot water jet circuit cleaning mode is selected. When the water level of the bathtub reaches the water level that exposes the recirculation circulation port, the memory circuit cleaning mode is set .

  In this bath system, during the chasing operation, the flow path switching valve is switched to the chasing side switching state, and the connection portion of the chasing outgoing path pipe with the heat source unit is in communication with the discharge port of the chasing circulation port. In this state, hot water in the bathtub is sucked from the intake port of the memorial circulation port, and the sucked hot water is returned to the heat source machine through the memorial return pipe. Moreover, the hot water returned to the heat source machine is heated using the heat of the gas burner provided in the heat source machine, and this heated hot water is supplied from the discharge port of the remedy circulation port into the bathtub through the remedy forward passage pipe. Discharged. And at the time of a chasing operation, the said operation | movement is repeated and the hot water in a bathtub is chased.

  On the other hand, at the time of the hot water jet operation, the flow path switching valve is switched to the hot water jet side switching state, and the connection portion with the heat source unit in the follow-up outgoing pipe is in communication with the hot water jet outlet via the hot water jet pipe. In this state, hot water heated by the heat source machine is supplied from the follow-up outgoing pipe to the hot water jet pump through the hot water jet pipe, and hot water discharged from the hot water jet pump is jetted into the bathtub from the hot water jet outlet. Moreover, the hot water in the bathtub is sucked from the intake port of the remedy circulation port, and the sucked hot water is returned to the heat source machine through the remedy return pipe and heated using the heat of the gas burner. And at the time of hot water jetting operation, the said operation | movement is repeated and the hot water heated with the heat-source machine continues being jetted in a bathtub from a hot water jet nozzle. Therefore, according to this bath system, the temperature of the hot water in the bathtub can be maintained even during the hot water jetting operation.

Further, in this bath system, when the cleaning water is supplied from the cleaning water supply unit, the cleaning water is supplied from the connecting part to the heat source unit in the memorandum forward pipe and the remedy return pipe from the side of the memorandum forward pipe and It flows through the return pipe.

  Here, for example, as in the above-described chasing operation, the flow path switching valve is switched to the chasing side switching state, and the connection portion with the heat source device in the chasing outbound pipe is communicated with the discharge port of the chasing circulation port. In this state, the cleaning water supplied to the follow-up outbound pipe flows over the entire length of the follow-up outbound pipe and is discharged from the discharge port of the follow-up circulation port into the bathtub. As a result, the memorial outgoing pipe is washed over its entire length, and the discharge port of the memorial circulation port is washed.

  On the other hand, for example, as in the hot water jetting operation described above, the flow path switching valve is switched to the hot water jetting side, and the connecting portion of the follower forward pipe with the heat source unit communicates with the hot water jet outlet via the hot water jet pipe. In this state, the wash water supplied to the follow-up outgoing pipe is discharged from the hot water outlet into the bathtub through the follow-up outgoing pipe and the hot water jet pipe. Thereby, the portion between the heat source machine and the hot water jet pipe in the follow-up outgoing pipe and the hot water jet pipe are washed, and the hot water jet outlet is washed.

  The washing water supplied to the remedy return pipe flows through the remedy return pipe over the entire length and is discharged from the intake port of the remedy circulation port into the bathtub. As a result, the memorial return pipe is washed over its entire length, and the intake port of the memorial circulation port is washed.

  Therefore, according to this bath system, since the memorial forward pipe, the memorial return pipe, the hot water jet pipe, the memorial circulation port, and the hot water jet outlet can be washed, the memorial forward pipe, the memorial return pipe The hot water jet pipe, the memorial circulation port, and the hot water jet port can be kept clean.

Moreover, according to this bath system, when the control unit is in the hot water jet mode, both the circulation pump and the hot water jet pump operate with the flow path switching valve in the hot water jet side switching state. Therefore, since hot water can be jetted into the bathtub using the power of both the circulation pump and the hot water jet pump, the hot water jet pump can be downsized while maintaining the hot water jet pressure.

Moreover, according to this bath system, the control unit switches the bath system to the memorial operation, the hot water jet operation, and the pipe washing operation by switching to the memorial mode, the hot water jet mode, and the pipe washing mode. Can do. Thereby, the usability of the bath system can be improved.

Moreover, according to this bath system, the control unit can be switched to the memorial circuit washing operation and the hot water jet circuit washing operation by switching to the memorial circuit washing mode and the hot water jet circuit washing mode. . Thereby, the usability at the time of the pipe washing operation in the bath system can be improved.

The bath system according to claim 2 is the bath system according to claim 1 , wherein the hot water jet pump is constituted by a DC motor pump, and the hot water jet port is provided when the control unit is in the hot water jet mode. The hot water jet pump is controlled so that at least one of the pressure of the hot water jetted into the bathtub and the interval time during the intermittent jet of the hot water jetted into the bathtub changes.

  According to this bath system, when the control unit is in the hot water jet mode, the hot water jet pump is controlled by the control unit, so that the pressure of hot water jetted from the hot water jet into the bathtub and the hot water jet pump are jetted into the bathtub. At least one of the interval times during intermittent ejection of hot water changes. Thereby, the use of the hot water jet operation can be promoted for the bather by suppressing the tiredness of the bather during the hot water jet operation.

The bath system according to claim 3 is the bath system according to claim 1 or 2 , wherein the hot water jet pump is installed in a place other than the bathtub.

  According to this bath system, the hot water jet pump is installed in a place other than the bathtub. Therefore, since it is not necessary to provide the hot water jet pump installation place in the bathtub (since it is not necessary to provide the bathtub with a notch for installing the hot water jet pump), the heat insulating layer of the bathtub can be secured. Thereby, the heat retention of a bathtub can be ensured.

The bath system according to claim 4 is the bath system according to any one of claims 1 to 3 , wherein the bath system is provided at an upper part of the bathtub and connected to the hot water jet pipe. An outlet is further provided.

  According to this bath system, at the time of hot water jetting operation, hot water is jetted into the bathtub from the shoulder hot water jet provided at the upper part of the bathtub. Thereby, since the hot water spouted from the hot water outlet for shoulders can be applied to a bather's shoulder, the comfort at the time of bathing can be improved.

  As described above in detail, according to the present invention, the temperature of hot water in a bathtub can be maintained even in a hot water jetting operation in a bath system having both a chasing function and a hot water jetting function.

1 is an overall view of a bath system according to an embodiment of the present invention. It is an internal block diagram of the heat source machine shown by FIG. It is a front view of the remote control shown in FIG. It is a flowchart explaining the operation | movement in the pipe washing mode of the control unit shown by FIG. It is a figure which shows the modification of the bathtub shown by FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a bath system S according to an embodiment of the present invention includes a heat source device 10, a follow-up return pipe 12, a follow-up return pipe 14, a bathtub 16, a jet pipe 18, and a jet A pump 20 and a flow path switching valve 22 are provided.

  The heat source device 10 is installed outdoors and has a can 24, a remedy section 26, a hot water supply section 28, a circulation pump 30, and a fan 32 as main components. More specifically, each component of the heat source device 10 is configured as follows.

  That is, as shown in FIG. 2, the internal space of the can 24 is partitioned into a memorial space 34 and a hot water supply space 36 by the partition plate. A fan 32 is provided at the bottom of the can 24, and an exhaust port 38 is formed at the top of the can 24.

  The tracking unit 26 includes a heat exchanger 42 and a gas burner 44. The heat exchanger 42 and the gas burner 44 are disposed in the memory space 34. The follow-up outgoing pipe 12 is connected to the outlet of the heat exchanger 42, and the follow-up return pipe 14 is connected to the suction port of the circulation pump 30. The discharge port of the circulation pump 30 is connected to the inlet of the heat exchanger 42 via a pipe 46. The pipe 46 is provided with a water level sensor 48 and a water flow switch 50, and the return return pipe 14 is provided with a return hot water temperature sensor 52.

  The hot water supply unit 28 (washing water supply unit) includes a main heat exchanger 54, a sub heat exchanger 56, and a gas burner 58. A water supply pipe 60 is connected to the inlet of the auxiliary heat exchanger 56, and the outlet of the auxiliary heat exchanger 56 is connected to the inlet of the main heat exchanger 54. A hot water supply pipe 62 is connected to the outlet of the main heat exchanger 54, and the water supply pipe 60 and the hot water supply pipe 62 are connected by a bypass pipe 64.

  A water amount sensor 66 and a water amount control valve 68 are provided on the upstream side of the connection portion between the water supply pipe 60 and the bypass pipe 64, and a bypass valve 70 is provided at the connection portion between the water supply pipe 60 and the bypass pipe 64. Is provided. In addition, a hot water temperature sensor 72 is provided on the downstream side of the hot water supply pipe 62 connected to the bypass pipe 64.

  A hot water filling pipe 74 is branched from the downstream side of the hot water supply pipe 62 with respect to the connection with the bypass pipe 64, and the hot water filling pipe 74 is connected to the circulation pump 30 side of the additional return pipe 14. Yes. The hot water filling pipe 74 is provided with a pouring valve 76, a check valve 78, and a water flow sensor 80. The pouring valve 76 is normally closed.

  The main pipe 82 through which gas (city gas) flows has a main pipe main body 84 and a plurality of branch pipes 86 and 88 branched from the main pipe main body 84. The branch pipe 86 is connected to the gas burner 44 of the tracking section 26, and the plurality of branch pipes 88 are connected to the gas burner 58 of the hot water supply section 28. The main pipe body 84 is provided with an electromagnetic valve 90 and a proportional valve 92, and the plurality of branch pipes 86 and 88 are provided with electromagnetic valves 94 and 95, respectively. Each electromagnetic valve 94, 95 is normally in a closed state.

  As shown in FIG. 1, the bathtub 16 is provided in a bathroom 96. The bathtub 16 is provided with a memory circulation port 98 and a plurality of jet nozzles 100. The memorial circulation port 98 has a discharge port 102 and a suction port 104 that open into the bathtub 16. The discharge port 102 is connected to the follow-up outgoing pipe 12, and the suction port 104 is connected to the follow-up return pipe 14.

  The plurality of jet nozzles 100 (hot water outlets) are connected to the jet pipe 18 and open into the bathtub 16. The plurality of jet nozzles 100 are provided with an air mixing mechanism (not shown). A plurality of jets including air and hot water are ejected from the plurality of jet nozzles 100, respectively. The plurality of jet nozzles 100 are provided at a position higher than the memory circulation port 98.

  Further, an apron 106 is provided around the bathtub 16, and a heat insulating layer 108 is provided inside the apron 106. In addition, a drain port 110 is provided at the bottom of the bathtub 16, and a drain plug 112 that closes the drain port 110 is opened and closed by a drain actuator 114.

  The jet pipe 18 (hot water jet pipe) is branched from the longitudinal intermediate portion of the follow-up outgoing pipe 12. The jet pipe 18 is provided with a jet pump 20 (hot water jet pump) constituted by a DC motor pump. The jet pump 20 is installed in a place other than the bathtub 16, and in the present embodiment, is accommodated in a pipe cover 118 provided in the heat source machine 10 as an example.

  The flow path switching valve 22 is constituted by an electromagnetic three-way valve, and is provided at a connection part (branch part) between the follow-up outgoing pipe 12 and the jet pipe 18. The flow path switching valve 22 seals the jet pipe 18 to allow the follow-up outbound path pipe 12 to communicate over the entire length, and seals the downstream side of the follow-up outbound path pipe 12 to The upstream side (the heat source device 10 side) is switched to a state where it communicates with the jet pipe 18.

  When the flow path switching valve 22 seals the jet pipe 18 and allows the follow-up outgoing path pipe 12 to communicate over the entire length, the connection portion of the follow-up outgoing path pipe 12 with the heat source device 10 is communicated with the discharge port 102. It becomes a state. In addition, when the flow path switching valve 22 seals the downstream side of the tracking forward path pipe 12 and connects the upstream side of the tracking forward path pipe 12 to the jet pipe 18, the heat source device 10 in the tracking forward path pipe 12 Are connected to the jet nozzle 100 via the jet pipe 18.

  Hereinafter, the switching state of the flow path switching valve 22 that communicates the connecting portion of the tracking path pipe 12 with the heat source device 10 with the discharge port 102 is referred to as a tracking side switching state. In addition, the switching state of the flow path switching valve 22 that connects the connecting portion of the follow-up outgoing pipe 12 with the heat source device 10 to the jet nozzle 100 via the jet pipe 18 is referred to as a jet side switching state (a hot water jet side switching state). Called. The flow path switching valve 22 is normally in the tracking side switching state.

  The bath system S includes a remote controller 120 (hereinafter abbreviated as a remote controller 120) and a control unit 122 in addition to the above components.

  The remote controller 120 is provided on the side wall of the bathroom 96. As shown in FIG. 3, the remote controller 120 is provided with, for example, an operation button 124, an automatic bath button 126, a memorial button 128, a drain button 130, a call button 132, a jet button 134, and the like.

  The remote controller 120 is provided with a rhythm button 136, a strong button 138, and a weak button 140 that can be selected during jet operation. Furthermore, a display unit 142 that displays the driving situation and the like is provided at the center of the remote controller 120. The remote controller 120 outputs a signal corresponding to the pressed button when each button is pressed.

  As shown in FIG. 1, the control unit 122 is provided inside the heat source device 10 as an example. The control unit 122 includes a ROM (read only memory) that stores a program for performing each operation, and a RAM (rewritable memory) that temporarily stores data based on signals output from the remote controller 120 or each sensor. And a CPU (central processing element) for executing each program.

  This control unit 122 is shown in FIG. 2 in addition to the ignition device for the gas burners 44 and 58 shown in FIG. 1, the fan 32, the circulation pump 30, the jet pump 20, the flow path switching valve 22, and the drainage actuator 114. Water level sensor 48, water flow switch 50, return hot water temperature sensor 52, water amount sensor 66, water amount control valve 68, bypass valve 70, tapping temperature sensor 72, pouring valve 76, water flow sensor 80, solenoid valves 90, 94, 95, and The proportional valve 92 and the like are electrically connected.

  Then, main operation | movement operation | movement of the bath system S which concerns on one Embodiment of this invention is demonstrated.

<Memorial operation>
When the chasing button 128 of the remote controller 120 shown in FIG. 3 is pressed while hot water is applied to the bathtub 16, a chasing command signal is output from the remote controller 120 to the control unit 122. When the control unit 122 detects the chasing command signal, it enters the chasing mode.

  When the control unit 122 enters the tracking mode, the solenoid valve 90, 94 shown in FIG. 2 is opened to keep the gas in a state where the flow path switching valve 22 shown in FIG. 1 is in the tracking side switching state. The gas burner 44 is activated and the ignition device of the gas burner 44 is activated to burn the gas in the gas burner 44 (activate the gas burner 44). Furthermore, the control unit 122 operates the circulation pump 30.

  When the circulation pump 30 is activated, the hot water in the bathtub 16 shown in FIG. 1 is sucked from the suction port 104 of the remedy circulation port 98, and this sucked hot water is remedied in the heat source device 10 through the remedy return pipe 14. Is returned to the heat exchanger 42 for use. Further, the hot water returned to the heat exchanger 42 is heated by the gas burner 44 for tracking, and the heated hot water is discharged from the discharge port 102 into the bathtub 16 through the tracking path pipe 12.

  A temperature detection signal corresponding to the temperature of the hot water flowing through the remedy return pipe 14 is output from the return hot water temperature sensor 52 provided in the remedy return pipe 14. During the chasing operation, the control unit 122 determines that the detection value based on the temperature detection signal from the return hot water temperature sensor 52 has reached the set value set as the set chasing temperature (the temperature of the return hot water). Until the set temperature is reached). Thereby, the hot water in the bathtub 16 is chased away.

<Jet driving>
When the jet button 134 of the remote controller 120 shown in FIG. 3 is pressed while hot water is applied to the bathtub 16, a jet command signal is output from the remote controller 120 to the control unit 122. When the control unit 122 detects the jet command signal, the control unit 122 enters the jet mode (hot water jet mode).

  When in the jet mode, the control unit 122 switches the flow path switching valve 22 shown in FIG. 1 to the jet-side switching state. Further, the control unit 122 opens the solenoid valves 90 and 94 shown in FIG. 2 to supply the gas to the gas burner 44 for remedy and activate the ignition device of the gas burner 44 to burn the gas in the gas burner 44. . Further, the control unit 122 operates the circulation pump 30 and the jet pump 20.

  When the circulation pump 30 is operated, hot water heated by the heat exchanger 42 for replenishment shown in FIG. 1 is supplied to the jet pump 20 from the retrace forward pipe 12 through the jet pipe 18. The hot water discharged from the jet pump 20 is mixed with air by an air mixing mechanism (not shown) provided in each jet nozzle 100. Then, a jet containing air and hot water is ejected from each jet nozzle 100 into the bathtub 16.

  The hot water in the bathtub 16 is sucked from the suction port 104 of the memorial circulation port 98, and the sucked hot water is returned to the heat exchanger 42 for memorialization in the heat source device 10 through the memorial return pipe 14. It is. The hot water returned to the heat exchanger 42 is heated by a gas burner 44 for remedy.

  During the jet operation, the above operation is repeated until the jet button 134 of the remote controller 120 is pressed again to stop the jet operation or another operation mode is selected. As a result, the hot water heated by the gas burner 44 for replenishment of the heat source device 10 is continuously ejected from the jet nozzle 100 into the bathtub 16 as a jet containing air, and the temperature of the hot water in the bathtub 16 is maintained.

  When the rhythm button 136 of the remote controller 120 is pressed, a rhythm command signal is output from the remote controller 120 to the control unit 122. When the control unit 122 detects the rhythm command signal, it enters the rhythm mode.

  When the control unit 122 enters the rhythm mode, the control unit 122 executes a program for the rhythm mode stored in advance in the ROM, varies the rotational speed of the jet pump 20 according to a predetermined rhythm, or intermittently turns the jet pump 20 on. Or make it work. Further, when the jet pump 20 is intermittently operated, the control unit 122 varies the interval of the intermittent operation in accordance with a predetermined rhythm. Thereby, the pressure of the jet flow ejected from the jet nozzle 100 and the interval time at the time of intermittent ejection of the jet flow ejected from the jet nozzle 100 change. An example of the predetermined rhythm is a fluctuation rhythm.

  When the strong button 138 of the remote controller 120 is pressed, the control unit 122 increases the rotational speed of the jet pump 20, and when the weak button 140 of the remote controller 120 is pressed, the control unit 122 rotates the rotational speed of the jet pump 20. Decrease. Thereby, the pressure of the jet flow ejected from the jet nozzle 100 into the bathtub 16 is increased or decreased according to the strong button 138 and the weak button 140 of the remote controller 120.

<Pipe cleaning operation>
When the drain button 130 of the remote controller 120 shown in FIG. 3 is pressed, a drain command signal is output from the remote controller 120 to the control unit 122. When the control unit 122 detects the drainage command signal, it enters the pipe cleaning mode. FIG. 4 shows the operation of the control unit 122 in the pipe cleaning mode. Refer to FIG. 4 for the following steps.

  In the pipe cleaning mode, the control unit 122 operates the drain actuator 114 shown in FIG. 1 to open the drain plug 112 that closes the drain port 110 (step S1). Thereby, the hot water in the bathtub 16 is drained through the drain port 110.

  When hot water in the bathtub 16 is drained through the drain port 110, a water level detection signal corresponding to the water level in the bathtub 16 is output from the water level sensor 48 shown in FIG. The control unit 122 detects the water level detection signal from the water level sensor 48, and determines whether or not the detection value based on the water level detection signal is less than a preset reference value (step S2). The control unit 122 repeatedly performs the process of step S2 until the water level of the hot water in the bathtub 16 becomes less than the reference water level. In this case, the reference water level is, for example, a water level at which the jet nozzle 100 is exposed from hot water.

  And if the water level of the hot water of the bathtub 16 becomes less than a reference water level, the control unit 122 will be in the jet circuit cleaning mode (hot water jet circuit cleaning mode) further in the pipe cleaning mode. When entering the jet circuit cleaning mode, the control unit 122 switches the flow path switching valve 22 to the jet side switching state (step S3).

  Further, at this time, the control unit 122 opens the water amount control valve 68 and causes water to flow through the main heat exchanger 54 and the sub heat exchanger 56. The control unit 122 opens the solenoid valves 90 and 95 to supply the gas to the gas burner 58 for remedy, and activates the ignition device of the gas burner 58 to burn the gas in the gas burner 58 (activate the gas burner 58). ) Furthermore, the control unit 122 opens the pouring valve 76. As a result, the water flowing through the main heat exchanger 54 and the auxiliary heat exchanger 56 is heated by the hot water supply gas burner 58 to become hot water, and this hot water is supplied as wash water to the recuperation return pipe 14 through the hot water pipe 74. (Pouring hot water is started).

  A part of the hot water supplied from the hot water filling pipe 74 to the memorial return pipe 14 is connected to the heat source device 10 in the memorial return pipe 14 (in this case, the circulation pump 30 side) from the memorial return pipe. 14, after all the water in the remedy return pipe 14 is discharged, the water is discharged into the bathtub 16 from the suction port 104 of the remedy circulation port 98. Thereby, the memorial return pipe 14 is washed over the entire length with hot water as washing water, and the suction port 104 of the memorial circulation port 98 is washed. Hot water discharged into the bathtub 16 is discharged through the drain port 110.

  On the other hand, the remaining hot water supplied from the hot water filled pipe 74 to the follow-up return pipe 14 is supplied to the follow-up forward pipe 12 via the circulation pump 30 and the heat exchanger 42 for follow-up. Then, the hot water supplied to the follow-up route pipe 12 in this way is added to the follow-up route from the connection portion side (in this case, the heat exchanger 42 side for follow-up) in the follow-up route pipe 12. Flow through tube 12. Further, the hot water as the washing water flowing through the follow-up outgoing pipe 12 is discharged through the jet pipe 18 and the jet pump 20 after all the water in the follow-up outgoing pipe 12 and the jet pipe 18 is discharged. It is discharged from 100 into the bathtub 16. Thereby, the portion between the heat source device 10 and the jet pipe 18 in the follow-up outgoing pipe 12 and the jet pipe 18 are washed, and the jet nozzle 100 is washed. Hot water discharged into the bathtub 16 is discharged through the drain port 110.

  In the present embodiment, open pumps are used as the jet pump 20 and the circulation pump 30. Also, hot water flows through the hot water filled pipe 74 in a high pressure state. Therefore, as described above, even when hot water is supplied from the hot water filled pipe 74 to the connecting portion side of the remedy return pipe 14 with the heat source device 10, the hot water is supplied to the circulation pump 30 and the heat exchanger for remedy. 42, the exhaust pipe 12, the jet pipe 18, and the jet pump 20 are discharged from the jet nozzle 100 into the bathtub 16.

  Further, when hot water as cleaning water is supplied from the hot water supply unit 28 in this way, a water amount detection signal corresponding to the amount of water flowing through the water supply pipe 60 is output from the water amount sensor 66. When detecting the water amount detection signal, the control unit 122 determines whether or not pouring has been completed, that is, whether or not the detection value based on the water amount detection signal has reached a preset threshold value (step S4). In the present embodiment, the amount of hot water used for cleaning is set to such an extent that the water inside the memorial return pipe 12, the memorial return pipe 14, and the jet pipe 18 can be replaced with hot water as washing water. As an example, it is 5 liters. Further, the above-mentioned preset threshold value is a value corresponding to the amount of water for 5 liters.

  When the control unit 122 determines that the detection value based on the water amount detection signal from the water amount sensor 66 has reached a preset threshold value, the control unit 122 closes the pouring valve 76 and stops pouring (step S5). The above is the jet circuit cleaning operation (hot water jet circuit cleaning).

  Next, after a lapse of a predetermined time (after reaching the water level at which the memory circulation port 98 is exposed), the control unit 122 is in the circuit cleaning mode of the pipe cleaning mode. When the control unit 122 enters the tracking circuit cleaning mode, the flow path switching valve 22 is switched to the tracking side switching state (step S6). Then, the control unit 122 opens the pouring valve 76. As a result, hot water as cleaning water is supplied from the hot water supply unit 28 to the remedy return pipe 14 through the hot water filled pipe 74.

  A part of the hot water supplied from the hot water piping 74 to the memorial return pipe 14 flows through the memorial return pipe 14 from the suction port 104 of the memorial circulation port 98 in the same manner as in the above-described jet circuit cleaning mode. It is discharged into the bathtub 16. Thereby, the memorial return pipe 14 is washed over the entire length with hot water as washing water, and the suction port 104 of the memorial circulation port 98 is washed. Hot water discharged into the bathtub 16 is discharged through the drain port 110.

  On the other hand, the remaining hot water supplied from the hot water filled pipe 74 to the follow-up return pipe 14 is supplied to the follow-up forward pipe 12 via the circulation pump 30 and the heat exchanger 42 for follow-up. Then, the hot water supplied to the follow-up route pipe 12 in this way is added to the follow-up route from the connection portion side (in this case, the heat exchanger 42 side for follow-up) in the follow-up route pipe 12. After flowing over the entire length of the pipe 12 and discharging all the water in the follow-up path pipe 12, it is discharged into the bathtub 16 from the discharge port 102 of the follow-up circulation port 98. As a result, the remedy outgoing pipe 12 is washed over the entire length with hot water as washing water, and the discharge port 102 of the remedy circulation port 98 is washed. Hot water discharged into the bathtub 16 is discharged through the drain port 110.

  Further, when hot water as cleaning water is supplied from the hot water supply unit 28 in this way, a water amount detection signal corresponding to the amount of water flowing through the water supply pipe 60 is output from the water amount sensor 66. When detecting the water amount detection signal, the control unit 122 determines whether or not pouring has been completed, that is, whether or not the detection value based on the water amount detection signal has reached a preset threshold value (step S7). Also in this case, the amount of hot water used for cleaning is, for example, 5 liters, and the preset threshold value is a value corresponding to the amount of water for 5 liters.

  When the control unit 122 determines that the detection value based on the water amount detection signal from the water amount sensor 66 has reached a preset threshold value, the control unit 122 closes the pouring valve 76 and stops pouring (step S8). The above is the memorial circuit cleaning operation.

  Then, the effect | action and effect of one Embodiment of this invention are demonstrated.

  As described above in detail, according to one embodiment of the present invention, during the jet operation, the flow path switching valve 22 is switched to the jet side switching state, and the downstream side of the tracking path pipe 12 is sealed and the tracking path path pipe is sealed. The upstream side of 12 communicates with the jet pipe 18. The hot water heated by the heat source device 10 is supplied from the follow-up outgoing pipe 12 to the jet pump 20 through the jet pipe 18, and the hot water discharged from the jet pump 20 is ejected from the jet nozzle 100 into the bathtub 16. . The hot water in the bathtub 16 is sucked from the suction port 104 of the recirculation circulation port 98, and the sucked hot water is returned to the heat source device 10 through the retreat return pipe 14 and heated by the gas burner 44 of the heat source device 10. Is done. And at the time of jet operation, the said operation | movement is repeated and the hot water heated with the heat-source equipment 10 continues being ejected in the bathtub 16 from the jet nozzle 100. FIG. Therefore, according to this bath system S, the temperature of the hot water in the bathtub 16 can be maintained even during jet operation.

  During the jet operation, both the circulation pump 30 and the jet pump 20 operate. Therefore, since the jet flow can be jetted into the bathtub 16 using the power of both the circulation pump 30 and the jet pump 20, the jet pump 20 can be downsized while maintaining the jet pressure of the jet. it can.

  Further, when the control unit 122 is in the jet mode, the jet pump 20 is controlled by the control unit 122, whereby the pressure of the jet flow jetted from the jet nozzle 100 into the bathtub 16 and the jet unit 20 are jetted into the bathtub 16. The interval time between intermittent jets of the jet changes. Thereby, the use of the jet driving (jet bath) can be promoted for the bather by suppressing the tiredness of the bather during the jet driving.

  Further, the jet pump 20 is accommodated in a pipe cover 118 provided in the heat source apparatus 10 and is installed in a place other than the bathtub 16. Therefore, since it is not necessary to provide the installation place of the jet pump 20 in the bathtub 16 (since it is not necessary to provide the notch for installing the jet pump 20 in the bathtub 16), the heat insulation layer 108 of the bathtub 16 can be ensured. it can. Thereby, the heat retention of the bathtub 16 is securable.

Moreover, in this bath system S, hot water as cleaning water is supplied from the hot water supply unit 28 provided in the heat source device 10 during the pipe cleaning operation. This hot water flows through the memorizing forward pipe 12 and the memorizing return pipe 14 from the connecting portion side of the memorial outgoing pipe 12 and the memorizing return pipe 14 with the heat source device 10. That is, hot water flows from the connecting portion with the hot water filling pipe 74 toward the memorial circulation port 98 toward the memorial return pipe 14, and the circulation pump 30 and the extra water flow from the hot water filling pipe 74 to the memorizing forward pipe 12. Hot water that has passed through the heat exchanger 42 for dredging flows toward the memorial circulation port 98 side.

  When the control unit 122 enters the tracking circuit cleaning mode, the flow path switching valve 22 is switched to the tracking side switching state as in the above-described tracking operation. Further, the hot water as washing water supplied to the memorial outgoing pipe 12 flows over the entire length of the memorial outgoing pipe 12, and after all the water in the memorial outgoing pipe 12 is discharged, the memorial circulation port The gas is discharged from 98 discharge ports 102 into the bathtub 16. As a result, the tracking path pipe 12 is cleaned over its entire length, and the discharge port 102 of the tracking circulation port 98 is cleaned.

  When the control circuit is in the jet circuit cleaning mode, the flow path switching valve 22 is switched to the jet side switching state as in the above-described jet operation. Then, the hot water as the wash water supplied to the follow-up outgoing pipe 12 flows through the follow-up outgoing pipe 12 and the jet pipe 18, and after all the water in the follow-up outgoing pipe 12 and the jet pipe 18 is discharged, It is discharged from the nozzle 100 into the bathtub 16. Thereby, the portion between the heat source device 10 and the jet pipe 18 in the follow-up outgoing pipe 12 and the jet pipe 18 are washed, and the jet nozzle 100 is washed.

  The hot water as washing water supplied to the memorial return pipe 14 flows through the memorial return pipe 14 over its entire length, and after all the water in the memorial return pipe 14 is discharged, the memorial circulation port The gas is discharged from 98 suction ports 104 into the bathtub 16. As a result, the memorial return pipe 14 is washed over its entire length, and the suction port 104 of the memorial circulation port 98 is washed.

  Therefore, according to this bath system S, during the pipe cleaning operation, it is possible to clean the remedy outgoing pipe 12, the remedy return pipe 14, the jet pipe 18, the remedy circulation port 98, and the jet nozzle 100. The remedy outgoing pipe 12, the remedy return pipe 14, the jet pipe 18, the remedy circulation port 98, and the jet nozzle 100 can be kept clean.

  Moreover, according to this bath system S, the control unit 122 switches between the memorial circuit washing mode and the jet circuit washing mode at the time of pipe washing operation, so that the bath system S is subjected to the memorial circuit washing operation and the jet circuit washing. You can switch to driving automatically. Thereby, the usability at the time of the pipe washing operation in the bath system S can be improved.

  Further, according to this bath system S, the control unit 122 switches to the memorial mode, the jet mode, and the pipe cleaning mode according to the operation of the remote controller 120, so that the bath system S is memorialized and jet operated. And switching to the pipe cleaning operation. Thereby, the usability of the bath system S can be improved.

  Then, the modification of one Embodiment of this invention is demonstrated.

  In one embodiment of the present invention, hot water is supplied as cleaning water from the hot water supply unit 28 during the pipe cleaning operation. However, water may be supplied as cleaning water from the hot water supply unit 28 without operating the gas burner 58 during the pipe cleaning operation.

  Further, during the pipe cleaning operation, the control unit 122 has executed both the jet circuit cleaning mode and the memorial circuit cleaning mode, but for example, only the jet circuit cleaning mode may be executed after the jet operation. In addition, when only the chasing operation is performed without performing the jet operation, only the chasing circuit cleaning mode may be executed.

  Further, when the drain button 130 of the remote controller 120 shown in FIG. 3 is pressed, the control unit 122 enters the pipe cleaning mode, and the pipe cleaning operation is executed. However, when the drain plug 112 is manually opened (when the bathtub plug is pulled out by hand), the control unit 122 detects the water level detection signal from the water level sensor 48, and the water level of the hot water in the bathtub 16 is less than the reference water level. In such a case, the control unit 122 may enter the pipe cleaning mode and the pipe cleaning operation may be executed.

  In addition, the control unit 122 controls the jet pump 20 so that both the pressure of the jet ejected from the jet nozzle 100 and the interval time at the intermittent ejection of the jet change in the jet mode. However, the control unit 122 may control the jet pump 20 so that only one of the pressure of the jet ejected from the jet nozzle 100 and the interval time when the jet is intermittently ejected changes.

  Further, in the bath system S, a flow path switching valve 22 that is configured by a three-way valve and provided at a connection portion between the follow-up outgoing pipe 12 and the jet pipe 18 is used. However, a state in which the connection portion of the follower forward pipe 12 with the heat source device 10 communicates with the discharge port 102 and a connection portion of the follower forward passage tube 12 with the heat source device 10 is connected to the jet nozzle 100 via the jet pipe 18. A flow path switching valve other than the three-way valve may be used as long as it can be switched to the communicated state.

  Further, in the bath system S, the hot water supply unit 28 supplies the cleaning water to the remedy outgoing pipe 12 and the remedy return pipe 14, but the cleaning water supply unit that supplies the cleaning water is connected to the hot water supply unit 28. May be provided separately.

  Further, the heat source apparatus 10 is configured to heat the hot water flowing from the follow-up return pipe 14 to the follow-up forward pipe 12 by directly heating the heat exchanger 42 for follow-up with the gas burner 44. However, the heat source apparatus 10 has a heating circuit 42 that can exchange heat with the heat exchanger 42 for renewal, a heating circuit pump that circulates hot water in the heating circuit, and a gas burner that heats the hot water flowing through the heating circuit. The heat exchanger 42 for remedy may be indirectly heated with a gas burner. That is, the heat source device 10 may be of any type as long as the hot water flowing from the follow-up return pipe 14 to the follow-up outgoing pipe 12 is heated using the heat of the gas burner.

  Moreover, the bathtub 16 may have a shoulder jet nozzle 144 (shoulder hot water outlet) as shown in FIG. The shoulder jet nozzle 144 is provided in the upper part of the bathtub 16 and is connected to the jet pipe 18 via the shoulder jet pipe 146. The shoulder jet nozzle 144 has an air mixing mechanism (not shown) as in the case of the normal jet nozzle 100, and a jet including air and hot water is ejected from the shoulder jet nozzle 144. It has become.

  If comprised in this way, a jet can be jetted in the bathtub 16 from the jet nozzle 144 for shoulders provided in the upper part of the bathtub 16 at the time of jet operation. Thereby, since the jet stream ejected from the shoulder jet nozzle 144 can be applied to the bather's shoulder, comfort during bathing can be improved.

  The shoulder jet pipe 146 may be provided with an electromagnetic valve 148. If comprised in this way, at the time of a jet operation, according to switching of the open / close state of the solenoid valve 148, it can switch to the state from which a jet flow is ejected from the shoulder jet nozzle 144, and the state from which a jet flow is not ejected.

  Moreover, in one Embodiment of this invention, the jet flow containing a hot water and air was jetted from the jet nozzle 100 as an example of the hot water jet. However, an air mixing mechanism may be omitted from the jet nozzle 100, and only hot water may be ejected from the jet nozzle 100. Similarly, in the modification shown in FIG. 5 described above, only hot water may be ejected from the shoulder jet nozzle 144. When only hot water is ejected, the term “jet” in the above-described embodiment of the present invention is understood as being replaced by “hot water ejection”.

  In addition, the plurality of modifications may be implemented in combination as appropriate.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

S ... Bath system, 10 ... Heat source machine, 12 ... Remembrance return pipe, 14 ... Remembrance return pipe, 16 ... Bath, 18 ... Jet pipe (hot water jet pipe), 20 ... Jet pump (hot water jet pump), 22 ... Flow path switching valve, 26 ... replenishment section, 28 ... hot water supply section (washing water supply section) 30 ... circulation pump, 42 ... heat exchanger for retreat, 44 ... gas burner for retreat, 54 ... main for hot water supply Heat exchanger 56 ... Sub-heat exchanger for hot water supply, 58 ... Gas burner for hot water supply, 98 ... Remembrance circulation port, 100 ... Jet nozzle (hot water jet port), 102 ... Discharge port, 104 ... Suction port, 108 ... Insulating layer, 110 ... Drain port, 112 ... Drain plug, 114 ... Drain actuator, 120 ... Remote controller, 122 ... Control unit, 144 ... Shoulder jet nozzle (shoulder hot water outlet)

Claims (4)

A heat source machine that is connected to the memorial return pipe and the memorial return pipe, and heats hot water flowing from the memorial return pipe to the memorial forward pipe using the heat of a gas burner;
A discharge port that is connected to the follow-up outbound pipe and opens into the bathtub, and a follow-up circulation port that is connected to the follow-up return duct and has an intake opening that opens into the bathtub;
A hot water jet pipe branched from the memorial outgoing pipe;
A hot water jet pump provided in the hot water jet pipe;
A hot water spout connected to the hot water spout pipe and opening in the bathtub , and provided at a position higher than the memorial circulation port ;
The tracking side switching state in which the connection portion of the tracking path pipe with the heat source device communicates with the discharge port, and the connection portion of the tracking path path pipe with the heat source device through the hot water jet pipe are connected to the hot water. A flow path switching valve that switches to a hot water ejection side switching state that communicates with the ejection port;
A cleaning water supply unit that supplies cleaning water flowing through the tracking forward path pipe and the tracking return path pipe from the connecting part side with the heat source machine in the tracking return path pipe and the tracking return path pipe;
A circulation pump that is provided in the heat source unit and circulates the hot water in the follow-up outgoing pipe and the follow-up return pipe;
A hot water jet mode in which the circulation pump and the hot water jet pump are operated in a state where the flow path switching valve is in the hot water jet side switching state, and the gas burner in a state where the flow path switching valve is in the tracking side switching state. A control unit having a tracking mode for operating the circulation pump, and a pipe cleaning mode for operating the cleaning water supply unit so that the cleaning water is supplied to the tracking outgoing path pipe and the tracking return path pipe; ,
With
The control unit includes, as the pipe cleaning mode, a tracking circuit cleaning mode in which the cleaning water supply unit is operated in a state where the flow path switching valve is in the tracking side switching state, and the flow path switching valve is set to the hot water. A hot water jet circuit cleaning mode that operates the cleaning water supply unit in a state of switching to the ejection side, and enters the pipe cleaning mode when draining the bathtub, and in the pipe cleaning mode, the water level of the bathtub is When the water level exposes the hot water spout, the hot water spout circuit cleaning mode is entered, and when the water level of the bathtub reaches the water level exposing the memorial circulation port, the memorial circuit cleaning mode is set.
Bath system. The hot water jet pump is constituted by a DC motor pump,
In the hot water jet mode, the control unit has at least a pressure of the hot water jetted into the bathtub from the hot water jet nozzle, and an interval time between intermittent jets of the hot water jetted into the bathtub. Controlling the hot water jet pump so that one side changes,
The bath system according to claim 1. The hot water jet pump is installed in a place other than the bathtub,
The bath system according to claim 1 or 2. A hot water outlet for shoulders connected to the hot water jet pipe and further provided on the upper part of the bathtub.
The bath system according to any one of claims 1 to 3 .

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