JP5751995B2 - Bath equipment - Google Patents

Description

  The present invention relates to a bath apparatus having a function of containing fine bubbles (white turbidity) in bathtub hot water.

  A bath apparatus having a bubble generating function for generating bubbles in a bathtub is used. In particular, by discharging very fine bubbles into the bath water, white turbidity (a large amount of fine bubbles is generated in the bath water). There is an increasing demand for devices that generate fine bubbles. It is said that the generation of fine bubbles (white turbidity type) in the bathtub has the effect of improving the heat retention of the bather and making it easier to remove dirt, and the user sends a comfortable bathing time. (For example, refer to Patent Documents 1 to 3).

  FIG. 5 (a) schematically shows a system configuration example of a bath apparatus having a configuration substantially similar to the microbubble generator described in Patent Document 1, and as shown in FIG. This bath apparatus is formed by connecting a whitening operation unit 38 and a heat source unit 10 to a circulation path 2 connected to a bathtub 1. The bathtub 1 and the circulation path 2 are connected via a circulation connector 3, and the circulation path 2 has pipe lines 41 to 47. A pressure on / off valve 48 is provided at the connection between the pipe 41, the pipe 42 (42a) and the pipe 47, and a switching valve 49a is provided at the connection between the pipe 42 (42a, 42b) and the pipe 43. A switching valve 49b is provided at a connection portion between the pipe line 42 (42c), the pipe line 44, and the pipe line 46, and these valves are provided in the whitening operation unit 38.

  In the whitening operation unit 38, there is provided a pressure melting means 5 for pressure-melting the air in the bathtub hot water circulating in the circulation path 2, and the pressure melting means 5 is connected to the air introduction valve 6. And a pressurization container (pressurization tank) 7 and two pressurization pumps 50 connected to the pressurization container 7 via a pipe 46. The pressurizing pump 50 is formed by a centrifugal pump, and pressurizes and introduces bathtub hot water and air introduced from the air introduction valve 6 into the pressurizing container 7. The pressure opening / closing valve 48 is a valve that is opened when the pressure of the bathtub hot water passing through the pipe 47 is desired to be higher than a predetermined threshold, and is closed when the pressure of the bathtub hot water is lower than the threshold, and the pressure opening / closing valve 48 is opened. When the pressure on / off valve 48 is closed, the conduit 41 and the conduit 41 are in a conducting state. By driving the pressurizing pump 50 (closing operation) with the pressure on / off valve 48 closed for 5 seconds immediately after the start of the whitening operation (beauty / white water operation) for generating fine bubbles in the bathtub 1, fine bubbles are generated. The time to reach the generated pressure is shortened, and fine bubbles are rapidly generated. As a result, the white turbidity is also improved.

  Further, in the heat source unit 10, a burner 51, a circulation pump 40 that circulates hot water in the circulation path 2, and a heat exchanger that heats the bathtub hot water circulating in the circulation path 2 by the drive of the circulation pump 40 by the burner 51. A (fire-up exchanger) 9 is provided.

  In this bath apparatus, at the time of reheating operation of bathtub hot water, as shown in FIG. 5A, the switching valve 49a is connected to the pipe line 42a and the pipe line 43, and the switching valve 49b is set to the pipe line 44. The circulation pump 40 is driven so that the pipe line 42c is connected to the pipe line 42c, and the bath water is passed through the pipe lines 41, 42a, 43, 44, 42c, 45 in order as shown by an arrow A in FIG. The circulating hot water is heated by the exchanger 9 while being circulated. In FIG. 5 (a), the path through which the bathtub hot water passes during this chasing operation is indicated by a hatched portion.

  In the whitening operation in which fine bubbles are generated in the bathtub, first, as shown in FIG. 6, the switching valve 49 a is connected to the pipe line 42 a and the pipe line 43, and the switching valve 49 b is set to the pipe line 44. And the pipe 42c are connected to each other, the pressurizing pump 50 is stopped, the circulation pump 40 is driven, and the hot water in the pressurizing vessel 7 is supplied to the pipes 47, 42a, 43, 44, 42c and 45 are passed through in order and discharged to the bathtub 1. Then, since the inside of the pressurized container 7 becomes a negative pressure from the atmospheric pressure, the air is introduced into the pressurized container 7 by opening the air introduction valve 6 in this state.

  After that, as shown in FIG. 5B, the switching valve 49a is connected to the conduit 42b and the conduit 43, and the switching valve 49b is connected to the conduit 44 and the conduit 46. Then, the circulation pump 40 is driven, and as shown by an arrow B in the same figure, the bath water is passed through the pipes 45, 42b, 43, 44, and 46 in order to the pressurized container 7 together with the air as described above. Introduce under pressure. Then, the bathtub hot water in which the air is pressurized and melted is led out through the pipe line 47 and ejected to the bathtub 2 through the pipe line 41. In FIG.5 (b), the path | route through which bathtub hot water passes at the time of this whitening driving | operation is shown by the shaded part.

  In the inventions described in Patent Documents 2 and 3, the hot water flow path is switched between the chasing operation and the whitening operation.

JP 2008-302054 A JP 6-10557 JP 2008-164233 A

  However, the bath apparatus provided with the conventional fine bubble generator uses a centrifugal pump as the pressurizing pump 50. As described above, during the whitening operation, the pressurizing pump 50 is stopped and the inside of the heat source apparatus 10 is stopped. Since the circulation pump 40 is moved so that the inside of the pressurized container 7 is set to a negative pressure from the atmospheric pressure and then the air introduction valve 6 is opened to take in the air, it is essential to increase the size of the pressurized container 7. In addition, when the air is taken in, the pressurizing pump 50 is stopped to take in the air, and then the hot water is pressurized by the pressurizing pump 50 to form an air pressurized molten hot water in which the air is pressurized and melted in the hot water of the bathtub. Therefore, continuous operation is impossible. In addition, when air is introduced, when fine bubbles are jetted into the bathtub 1, and during reheating, it is necessary to switch the operation by switching the switching valves 49a and 49b. There was a problem such as.

  The present invention has been made in order to solve the above-described conventional problems, and its purpose is to selectively perform a reheating operation of bath water and a whitening operation that generates fine bubbles in the bath water with a simple configuration. An object of the present invention is to provide a bath apparatus that can be switched and can be downsized.

  In order to achieve the above object, the present invention has the following configuration as means for solving the problems. That is, in the first invention, a pressure melting means for deriving by pressure-melting the air in the bathtub hot water circulating in the circulation path is provided in the circulation path connected to the bathtub, and the pressure melting means is An air introduction valve, a pressure vessel, and a pump connected to the pressure vessel and circulating the bathtub hot water in the circulation path, the pump being introduced from the bathtub hot water and the air introduction valve. And a function of introducing pressurized air into the pressurization vessel, and a heat exchanger for heating the bath water circulating through the circulation path by driving the pump is interposed in the circulation path, Has a function of selectively performing forward rotation and reverse rotation, and when performing forward and reverse rotation on one side, the whitening operation side rotation direction in which bath water is circulated from the pump side toward the pressurized container side, and When the other side of the forward / reverse rotation is performed, The revolving independent operation side rotation direction that circulates from the pressurized container side toward the pump side, and the pump is rotated in the whitening operation side rotation direction so that the bath water and the air are supplied to the pressurized container. Whitening operation in which air pressurized molten hot water obtained by pressurizing and melting the air in the bathtub hot water is discharged into the bathtub to generate fine bubbles in the bathtub; As means for solving the problem with a configuration having operation switching control means for selectively switching control between reheating and independent operation in which the bathtub hot water circulating in the circulation path by rotating in the operation side rotation direction is heated by the heat exchanger. Yes.

  Further, in the second invention, in addition to the configuration of the first invention, the operation switching control means rotates the pump in the whitening operation side rotation direction in addition to the operation switching function of the whitening operation and the chasing single operation. Hot water and water are heated by a heat exchanger while air hot molten water is formed by introducing hot water and air into the pressurized container, and the heated air pressurized molten hot water is discharged into the bathtub to It has a control function of whitening and chasing operation that generates fine bubbles.

  Further, in the third invention, in addition to the configuration of the second invention, when the bath water flows into the circulation path when the pump is driven in the circulation path and rotated in the independent operation side rotation direction, When the whitening operation side is rotated in the direction of rotation of the whitening operation, a water flow detecting means is provided that does not detect the flow of water even if the bath water flows in the circulation path, and the operation switching control means performs the whitening and chasing operation. When performing the operation, the pump is rotated in the revolving independent operation side rotation direction, and the water flow detecting means confirms that the bathtub hot water has flowed into the circulation path, and then the rotation direction of the pump is changed to the whitening operation side rotation direction. It is characterized by switching and performing whitening and chasing driving.

  Furthermore, in addition to the configuration of the second invention, the fourth invention is a pump in which hot water is circulated in the circulation path by driving the rotation direction of the pump in the whitening operation side rotation direction in the circulation path. Pressure detection means is provided to detect the dynamic pressure that is the pressure on the suction side and the static pressure that is the pressure on the pump suction side when hot water is not circulated, and the operation switching control means is used for whitening and chasing operation. It is performed after confirming that the dynamic pressure has decreased by a predetermined pressure difference or more than the static pressure based on the detected pressure of the pressure detecting means.

  Furthermore, in the fifth aspect of the invention, in addition to the configuration of any one of the first to fourth aspects of the invention, a circulation connector is provided at a connection portion between the bathtub and the circulation path, and the circulation connector is provided with a pump. When the whitening operation side is rotated in the rotational direction of the whitening operation, the first passage connected to the circulation path on the side of discharging hot water to the bathtub and the hot water when the pump is driven in the single direction of rotation. A second passage connected to the circulation path on the side discharging to the bathtub is provided, and a bathtub hot water inlet is connected to one branch end side of the first passage via a branch portion. A fine bubble generating nozzle is connected to the other branch end side, a bathtub hot water introduction port is connected to one branch end side of the second passage through a branch portion, and a bathtub hot water outlet port is connected to the other branch end side. Is connected to the second passage during whitening operation. The hot water of the hot air formed by the pressure melting means by introducing the hot water from the bathtub into the second passage and circulating through the circulation path is discharged from the outlet of the fine bubble generating nozzle through the first passage, At the time of the sole operation, the hot water from the bathtub connected to the first passage is introduced into the first passage and circulated through the circulation path, and then the second passage through the second passage. It discharges from the bathtub hot-water outlet connected to the passage.

  Furthermore, in the sixth invention, in addition to the configuration of the fifth invention, the circulation connector is provided with the back side facing the bathtub wall, and the discharge port of the fine bubble generating nozzle is the front of the circulation connector. It is formed in an upper side or an upper wall part, and the bathtub hot-water outlet is formed in the front lower side or lower wall part of the said circulation connection tool, It is characterized by the above-mentioned.

  According to the present invention, the pressure melting means interposed in the circulation path connected to the bathtub includes an air introduction valve, a pressure container, and the bathtub hot water connected to the pressure container to the circulation path. A pump that circulates, and the pump also has a function of pressurizing and introducing the bathtub hot water and air introduced from the air introduction valve into the pressurized container. And air are pressurized and introduced into a pressurized container to form an air-pressed molten hot water, and the hot water can be circulated while being led to a circulation path. The apparatus configuration can be simplified compared to the case where a separate pump is provided.

  In addition, the pump has a function of selectively performing forward rotation and reverse rotation, and when performing forward / reverse rotation on one side, whitening operation for circulating bath water from the pump side toward the pressurized container side. It is a side rotation direction, and when the other side of the forward and reverse rotations is performed, the bathtub hot water is circulated from the pressurized container side toward the pump side, and the revolving independent operation side rotation direction is formed. By appropriately selectively controlling the rotation direction, the flow direction of the bathtub hot water can be appropriately varied.

  That is, the operation switching control means rotates the pump in the whitening operation side rotation direction to pressurize and introduce the bathtub hot water and the air into the pressurized container, and pressurize and melt the air into the bathtub hot water. Whitening operation in which air pressurized molten hot water is discharged into the bathtub to generate fine bubbles in the bathtub, and hot water in the bathtub that circulates in the circulation path by rotating the pump in the revolving single operation side rotation direction. Since it is possible to selectively switch and control the reheating single operation to be heated by the heat exchanger, for example, it is not necessary to perform the circulation path of the bathtub hot water by switching the switching valve in the circulation path as in the conventional example, The bath device can be downsized and the system configuration can be simplified.

  Further, in addition to the operation switching function of the whitening operation and the chase single operation, the operation switching control means rotates the pump in the whitening operation side rotation direction and introduces hot water and air into the pressurized container. It has a control function of whitening and chasing operation that heats hot water with a heat exchanger while forming pressurized molten hot water and discharges heated air pressurized molten hot water into the bathtub to generate fine bubbles in the bathtub By doing so, the bath water can be replenished while generating fine bubbles, so that the bath apparatus can be used more comfortably.

  Further, when the hot water in the bathtub is flown in the circulation path by rotating the pump in the circulation path and rotating in the independent operation side rotation direction, the water flow is detected, but when rotating in the whitening operation side rotation direction, the circulation path is detected. The water flow detecting means that does not detect the flow of water even when the bathtub hot water flows is provided, and when the operation switching control means performs whitening and reheating operation, the pump is rotated in the revolving independent operation rotation direction to After confirming that the bathtub hot water has flowed into the circulation path by the flowing water detection means, the rotation direction of the pump is switched to the rotation direction of the whitening operation, and the whitening and chasing operation is performed. After confirming that there is sufficient hot water, the hot water in the bathtub can be replenished while generating fine bubbles as described above.

  Furthermore, when the pump is driven in the rotational direction of the whitening operation and hot water is circulated in the circulation path, the dynamic pressure that is the pressure on the suction side of the pump and the static pressure that is the pressure on the pump suction side when hot water is not circulated. When the pressure is compared, the dynamic pressure becomes lower than the static pressure according to the piping resistance of the circulation path. For example, the static pressure is measured in advance and the static pressure and the pump are driven. By detecting that the pressure at the time of driving the pump is lower than the pressure, it can be confirmed that hot water has flowed into the circulation path. Therefore, pressure detecting means for detecting the dynamic pressure and the static pressure is provided, and when the operation switching control means performs a whitening and chasing operation based on the detected pressure of the pressure detecting means, the dynamic pressure is higher than the static pressure. Is performed after confirming that the pressure has decreased by a predetermined pressure difference or more, and after confirming that there is sufficient hot water in the bathtub, follow the bath hot water while generating fine bubbles as described above. Can whisper.

  Further, a circulation connector is provided at the connection between the bathtub and the circulation path, and the circulation connector is configured so that the hot water is discharged to the bathtub when the pump is rotated in the whitening operation side rotation direction. A first passage connected to the passage, a second passage connected to the circulation passage on the side that discharges hot water to the bathtub when the pump is driven in the direction of single rotation and the pump is rotated, It is set as the structure which has the bathtub hot-water inlet and fine bubble generation | occurrence | production nozzle connected to the channel | path via the branch part, and the bathtub hot-water inlet and bathtub hot-water outlet port connected to the 2nd channel | path via the branch part. This makes it possible to introduce the bath water into the circulation path, lead out the bath water into the bathtub, and eject fine bubbles during the whitening operation and the chasing alone operation (and even during the whitening and chasing operation depending on the configuration). This is best done with a circulation connection with a simple configuration. Can.

  Further, the circulation connector is provided with the back side facing the bathtub wall side, the discharge port of the fine bubble generating nozzle is formed on the front upper side or the upper wall of the circulation connector, and the bathtub hot water outlet is the circulation connection. By forming on the front lower side or the lower wall portion of the tool, the following effects can be obtained.

  In other words, with this configuration, the fine bubbles generated from the fine bubble generating nozzle are discharged (spouted) from the upper side of the circulation connection portion, so that a cloudy foam layer is first formed on the surface of the bathtub and the surface of the hot water tank is clouded. The user can see the inside of the hot water tank from the upper side of the hot water surface of the bathtub, so that the user can feel the appearance of many cloudy bubbles in a short time. Can make the hot water tank available very pleasantly. In addition, at the time of reheating alone operation, the heated hot water is led out from the lower side of the circulation connection portion, so that the effect of stirring the hot water in the bathtub can be exerted. Can be relegated.

It is explanatory drawing which shows typically the system configuration | structure of one Example of the bath apparatus which concerns on this invention with an operation example. It is a block diagram which shows the control structure provided in the bath apparatus of an Example. It is explanatory drawing which shows typically the structural example of the circulation connection tool provided in the bath apparatus of an Example with the operation example. It is a graph which shows the example of relationship data of the detection voltage of a water level sensor provided in the bath apparatus of an Example, and piping resistance value (pipe pressure). It is explanatory drawing which shows the system configuration | structure of the bath apparatus provided with the conventional fine bubble generating apparatus with the operation example at the time of fine bubble generation and a chasing. It is explanatory drawing for demonstrating the time of the air introduction operation | movement required for fine bubble generation | occurrence | production in the bath apparatus shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the present embodiment, the same reference numerals are given to the same name portions as in the conventional example.

  FIG. 1 shows a system configuration of an embodiment of a bath apparatus according to the present invention. This bath apparatus is formed in the circulation path 2 connected to the bathtub 1 through a pressure melting means 5, a water level sensor 16, a water flow switch 17, and a heat exchanger 9, and these components Is housed in the heat source unit 10. The pressure melting means 5 has an air introduction valve 6, a pressure vessel 7, and a pump 8 interposed therebetween.

  The circulation path 2 has pipe lines 11 to 15, the bathtub 1 and the heat exchanger 9 are connected via the pipe line 11, and the heat exchanger 9 and the air introduction valve 6 are connected via the pipe line 12. Connected, the air introduction valve 6 and the pump 8 are connected via a pipeline 13, the pump 8 and the pressurized vessel 7 are connected via a pipeline 14, and the pressurized vessel 7 and the bathtub 1 are connected to the pipeline. 15 is connected.

  The pump 8 is formed by a cascade pump, and has a function of circulating bathtub hot water in the circulation path 2 and a function of pressurizing and introducing the bathtub hot water and air introduced from the air introduction valve 6 into the pressurized container 7. ing. The pump 8 has a function of selectively performing forward rotation and reverse rotation, and when performing forward / reverse rotation on one side (here, (B) counterclockwise rotation), the pump 8 is operated from the pump 8 side. This is the whitening operation side rotation direction in which the bathtub hot water circulates toward the pressure vessel 7 side, and when the other side of the forward and reverse rotation (here, (A) clockwise rotation) is performed, the bath hot water is added. This is the revolving single operation side rotation direction that circulates from the pressure vessel 7 side toward the pump 8 side.

  By rotating the pump 8 in the whitening operation direction, the suction side of the pump 8 becomes the arrangement side of the air introduction valve 6, and in this state, when the pressure on the suction side of the pump 8 becomes negative, the air introduction valve 6 It is configured to introduce air from the outside. Further, when the pump 8 is driven and rotated in the direction of independent operation rotation, the pressure on the suction side of the pump 8 does not become negative, and no air is introduced.

  The heat exchanger 9 has a function of heating the bathtub hot water circulating through the circulation path 2 by driving the pump 8. The water flow switch 17 functions as a water flow detection means. When the hot water flows in the circulation path 2 by turning the pump 8 in the direction of independent operation and rotating, the water flow is detected. When it is rotated in the direction of rotation, the flow of water is not detected even if bath water flows through the circulation path 2.

  The water level sensor 16 functions as pressure detection means, and the dynamic pressure that is the pressure on the suction side of the pump 8 when the pump 8 is rotated in the whitening operation side rotation direction and hot water is circulated in the circulation path 2, The static pressure, which is the pressure on the suction side of the pump 8 during circulation, is detected. In addition, this static pressure is made to circulate hot water, for example, after setting the water of the bathtub 1 to some extent (for example, a position half the depth of the bathtub 1 or a set water level set for bathing). Instead, it can be detected by detecting the pressure at that time.

  As shown in FIG. 2, the bath device is provided with a control device 18, and this control device 18 has an operation switching control means 19 and a combustion control means 20. The control device 18 is signal-connected to the remote control device 21, and the remote control device 21 is provided with an operation switching operation means 22.

  The operation switching control means 19 rotates the pump 8 in the revolving single operation side rotation direction and distributes it as shown by an arrow A in FIG. 1, and heats the bathtub hot water circulating in the circulation path 2 by the heat exchanger 9. In the reheating independent operation, the pump 8 is rotated in the whitening operation side rotation direction and is circulated as shown by the arrow B in FIG. 1, and hot water and air in the bathtub are pressurized and introduced into the pressurized container 7. Switchover control is performed between whitening operation in which air pressurized molten water obtained by pressurizing and melting air is discharged into the bathtub 1 to generate fine bubbles in the bathtub 1. At the time of the reheating independent operation, a command is given to the combustion control means 20 and the hot water in the bathtub is heated by the heat exchanger 9. The combustion control means 20 adjusts the amount of gas and air supplied to the burner 51. However, since the combustion control method of the burner 51 is well known, detailed description thereof is omitted here.

  Further, the operation switching control means 19 introduces bathtub hot water and air into the pressurized container 7 by rotating the pump 8 in the whitening operation side rotation direction in addition to the operation switching function of the whitening operation and the chasing single operation. White water that heats the hot water by the heat exchanger 9 and discharges the heated air pressurized molten hot water into the bathtub 1 to generate fine bubbles in the bathtub 1 while forming the air pressurized molten hot water by It has a control function for reckless driving.

  When performing the whitening and chasing operation, the operation switching control means 19 first rotates the pump 8 in the chasing single operation side rotation direction to circulate bathtub hot water in the direction of arrow A in FIG. After confirming that the bath water has flowed into the circulation path 2, the rotation direction of the pump 8 is switched to the whitening operation side rotation direction, and the bath water is circulated in the direction of arrow B in FIG. Do.

  In this embodiment, by selectively controlling forward / reverse rotation of the pump 8, the flow direction of the bathtub hot water flowing through the circulation path 2 is switched. In this way, the water flow switch 17 is provided in the circulation path 2. Furthermore, components that operate in one flow direction but not in the opposite flow direction do not operate in the reverse flow direction. For this reason, simply changing the flow direction so that the pump can be rotated forward and backward will cause troubles in the operation due to the reverse flow. Rotate in the direction of rotation to circulate the bathtub hot water in the direction of arrow A in FIG. 1, and confirm that the bathtub hot water has flowed into the circulation path 2 by the water flow switch 17, then set the rotation direction of the pump 8 to the whitening operation side rotation direction. The control configuration to be switched prevents any trouble.

  The operation switching control means 19 may perform the following control based on the pressure detected by the water level sensor 16 when performing the whitening and chasing operation. That is, the static pressure that is the pressure on the suction side of the pump 8 when hot water is not circulated is detected in advance by the water level sensor 16, and the pump 8 is driven in the rotational direction of the whitening operation at the start of the whitening and chasing operation. Hot water is circulated in the circulation path 2 to detect a dynamic pressure (pipe pressure), which is a pressure on the suction side of the pump 8 detected by the water level sensor 16.

  The static pressure value is 0 KPa (water level sensor output voltage is 3.6 V), for example, as shown at point D in FIG. 4, whereas the dynamic pressure value is at point C in FIG. As shown, when -20 KPa (water level sensor output voltage is 2.4 V), the pressure is reduced by 20 KPa (water level sensor output is reduced by 1.2 V), and thus the dynamic pressure is When it is confirmed that the set pressure difference is lower than the static pressure by a predetermined pressure (for example, 0.5 V in terms of water level sensor output pressure, about 8.3 KPa), the operation switching control means 19 Since there is sufficient hot water in the bathtub 1, it may be determined that the hot water in the bathtub has sufficiently flowed into the circulation path 2 when the pump 8 is driven in the rotational direction of the whitening operation, and the whitening and chasing operation may be performed.

  The characteristic line a shown in FIG. 4 shows the result of measuring the dynamic pressure by applying a fixed voltage of 12.03 V to the water level sensor 16 by rotating the pump 8 in the whitening operation side rotation direction at a rotational speed of 3500 rpm. ing. In addition, as shown in FIG. 1, the value of the static pressure indicated by the point D is such that the heat source device 10 is disposed in the horizontal direction with respect to the bathtub 1 (the bathtub 1 and the heat source device 10 are substantially at the same height. The value of the static pressure is different depending on the positional relationship between the bathtub 1 and the heat source unit 10 (the value of the dynamic pressure is also the bathtub 1 and the heat source unit 10). Depending on the position of the position). When the flow of hot water flowing through the circulation path 2 is very small, the dynamic pressure becomes almost the same value as the static pressure, so that the dynamic pressure is lower than the set pressure difference as compared with the static pressure as described above. When it is confirmed that the bath water has sufficiently flowed into the circulation path 2, it can be determined.

  Moreover, the structure of the circulation connector 3 provided in the connection part of the bathtub 1 and the circulation path 2 is not specifically limited, Although it sets suitably, In a present Example, it is as follows. The circulation connector 3 having the configuration is applied. That is, as shown in FIG. 3, the circulating connector 3 has a housing 31 on the side where hot water is discharged to the bathtub 1 when the pump 8 is rotated in the whitening operation side rotation direction. A first passage 23 connected to the circulation path 2 (pipe line 15), and a circulation path 2 (pipe line 11) on the side from which hot water is discharged to the bathtub 1 when the pump 8 is driven and rotated in the single-side rotation direction. ) To be connected to the second passage 24.

  The first passage 23 is connected to a bathtub hot water inlet 26 on one branch end side and a fine bubble generating nozzle 27 on the other branch end side via a branch portion 25. Various configurations of the fine bubble generating nozzle 27 have been proposed, and appropriate configurations including the proposed one are set in the fine bubble generating nozzle 27. The second passage 24 is connected to a bathtub hot water inlet 29 on one branch end side and a bathtub hot water outlet 30 on the other branch end side via a branch portion 28. The branch portion 25 is provided with a valve 32 that moves with the flow of hot water introduced into the branch portion 25, and the branch portion 28 with a valve 33 that moves with the flow of hot water introduced into the branch portion 28. Is provided.

  The valve 32 is provided so as to be rotatable about a fulcrum 36. When there is no flow of water, the valve 32 is located at the center side of the branching portion 25 as shown by the broken lines in FIGS. Rotate in the direction of the arrow about the fulcrum 36 according to the flow of water. And if the valve 32 moves to the position shown by the continuous line of Fig.3 (a), water will not flow from the bathtub hot-water inlet 26 side to the fine bubble generation nozzle 27 side, and it shows by the continuous line of FIG.3 (b). When moved to the position, water does not flow from the first passage 23 side to the bathtub hot water inlet 26 side. Further, the valve 33 is provided so as to be rotatable about a fulcrum 37. When there is no flow of water, the valve 33 is positioned at the center of the branch portion 28 as shown by the broken lines in FIGS. 3 (a) and 3 (b). It rotates in the direction of the arrow about the fulcrum 37 according to the flow of water. When the valve 33 moves to the position indicated by the solid line in FIG. 3A, water does not flow from the second passage 24 side to the bathtub hot water inlet 29 side, and the position indicated by the solid line in FIG. If it moves to, water will not flow from the bathtub hot-water inlet 29 side to the bathtub hot-water outlet 30 side.

  Moreover, the circulation connector 3 is provided with the back side facing the bathtub wall side, the discharge port of the fine bubble generating nozzle 27 is formed on the upper front side of the circulation connector 3, and the bathtub hot water outlet 30 is It is formed on the lower wall portion of the circulation connector 3. A filter 34 is provided on the front side of the circulation connector 3.

  During the reheating independent operation, as the pump 8 rotates in the revolving independent operation side rotation direction, as shown in FIG. 3A, the bathtub hot water is supplied from the bathtub hot water inlet 26 through the filter 34 to the first passage 23. To introduce. At this time, along with the flow of hot water from the bathtub 1 to the heat source unit 10 side, the valve 32 becomes the mode shown in FIG. 3A as described above, and the bathtub hot water inlet 26 and the first passage 23 are electrically connected. To do. 1 is discharged from the bathtub hot water outlet 30 through the second passage 24 of the circulation connector 3, as shown in FIG. 3A.

  Further, during the whitening operation, as the pump 8 rotates in the whitening operation side rotation direction, as shown in FIG. 3 (b), the bathtub hot water is introduced from the bathtub hot water inlet 29 into the second passage 24 through the filter 34. To do. At this time, along with the flow of hot water from the bathtub 1 to the heat source unit 10 side, the valve 33 becomes the mode shown in FIG. 3B as described above, and the bathtub hot water inlet 29 and the second passage 24 are electrically connected. To do. The bathtub hot water circulated through the circulation path 2 in the direction of the arrow B in FIG. 1 is converted into air pressurized molten hot water by the pressure melting means 5, and as shown in FIG. And is discharged from the discharge port of the fine bubble generating nozzle 27 through the first passage 23.

  In addition, this invention is not limited to the said Example, It sets suitably. For example, in the above-described embodiment, the operation switching control means 19 has a control function for switching between whitening operation, chasing single operation, and whitening and chasing driving. However, the control function for whitening and chasing operation is as follows. It can be omitted.

  In the above embodiment, the pump 8 is a cascade pump. However, the pump 8 is not necessarily a cascade pump, and may be a rotary pump (rotary pump) such as a gear pump, a multileaf rotary pump, an eccentric pump (vane pump), or the like. .

  Furthermore, the system configuration of the bath apparatus of the present invention is not limited to the configuration shown in FIG. For example, the pressure melting means 5 may be interposed in the pipe line 11 of the circulation path 2 shown in FIG. 1, and the air introduction valve 6 of the pressure melting means 5 is not interposed in the circulation path 2. In addition, for example, similarly to the conventional example shown in FIG. 5, the pressure vessel 7 may be provided directly or via an air introduction passage.

  Furthermore, the bath apparatus of the present invention connects a hot water supply circuit having a hot water supply function to the circulation path 2 via a pouring passage, and the hot water formed by the hot water supply circuit is connected to the bathtub 1 via the pouring passage and the circulation path 2. A hot water filling function may be provided, or other functions such as a heating function and a solar heat collecting function may be provided. The bath device of the present invention may be a device that burns fuel other than gas and heats water to make hot water, or may be a device that heats water by electricity to make hot water. Is set.

  INDUSTRIAL APPLICABILITY Since the hot water in the bathtub can be made cloudy and a comfortable bathing time can be realized, the present invention can be used as a bath device provided in various places such as homes and hotel accommodations.

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation path 3 Circulation connection 4 Heat source machine 5 Pressurization melting means 6 Air introduction valve 7 Pressurization container 8 Pump 9 Heat exchanger 16 Water level sensor 17 Water flow switch 18 Control apparatus 19 Operation switching control means 20 Combustion control means 21 Remote control device 22 Operation switching operation means 23 First passage 24 Second passage 26, 29 Bath hot water inlet 27 Fine bubble generating nozzle 30 Bath hot water outlet

Claims (6)

  In the circulation path connected to the bathtub, a pressure melting means for pressure-melting the air in the bathtub hot water circulating in the circulation path is provided, the pressure melting means includes an air introduction valve, a pressure A container, and a pump connected to the pressurized container and circulating the bathtub hot water in the circulation path, the pump supplying the bathtub hot water and air introduced from the air introduction valve to the pressurized container. And a heat exchanger for heating the bath water circulating through the circulation path by driving the pump, and the pump selects forward rotation or reverse rotation. When the rotation on one side of the forward and reverse is performed, the whitening operation side rotation direction in which the bathtub hot water flows from the pump side toward the pressurized container side, and the other of the forward and reverse directions When the side is rotated, the bath water is supplied from the pressurized container side. The recirculation single operation side rotation direction that circulates toward the pump side, the pump is rotated in the whitening operation side rotation direction, the bath hot water and the air are pressurized and introduced into the pressure vessel, Whitening operation in which air pressurized molten hot water obtained by pressurizing and melting the air to hot water in the bathtub is discharged into the bathtub to generate fine bubbles in the bathtub, and the pump is rotated in the revolving direction of the reciprocating single operation. A bath apparatus characterized by having an operation switching control means for selectively switching and controlling a reheating independent operation in which the bath water circulating in the circulation path is heated by the heat exchanger.   The operation switching control means, in addition to the operation switching function between the whitening operation and the chase single operation, rotates the pump in the whitening operation side rotation direction and introduces the bath water and air into the pressurized container, thereby compressing the air pressurized molten hot water. It has a function of controlling whitening and chasing operation in which hot water is heated by a heat exchanger while forming hot water, and heated air pressurized molten hot water is discharged into the bathtub to generate fine bubbles in the bathtub. The bath apparatus according to claim 1.   In the circulation path, the pump is driven up and rotated in the independent operation side rotation direction so that the water flow is detected when bath water flows in the circulation path, but when the bath water is rotated in the whitening operation side rotation direction, the circulation path is Flowing water detection means that does not detect the flow of water even when hot water from the bathtub flows is provided, and the operation switching control means rotates the pump in the revolving direction of the reheating independent operation when performing whitening and reheating operation. 3. The whitening and chasing operation is performed by switching the rotation direction of the pump to the whitening operation side rotation direction after confirming that the bath water has flowed into the circulation path by a detecting means. Bath equipment.   The circulation path has a dynamic pressure that is the pressure on the suction side of the pump when the rotation direction of the pump is driven in the whitening operation side rotation direction and the hot water is circulated in the circulation path, and the pump suction side when hot water is not circulated. Pressure detecting means for detecting a static pressure that is a pressure at a pressure is provided, and the operation switching control means, when performing whitening and chasing operation, the dynamic pressure is higher than the static pressure based on the detected pressure of the pressure detecting means. The bath apparatus according to claim 2, wherein the bath apparatus is performed after confirming that the pressure difference has been reduced by a predetermined pressure difference or more.   A circulation connector is provided at the connection between the bathtub and the circulation path, and the circulation connector is connected to a circulation path on the side of discharging hot water to the bathtub when the pump is rotated in the whitening operation side rotation direction. A first passage that is connected to a circulation path on the side that discharges hot water into the bathtub when the pump is driven and rotated in the single-side rotation direction. A bath hot water inlet is connected to one of the passages through a branching portion and a fine bubble generating nozzle is connected to the other branching end of the other passage through the branching portion. The bathtub hot water introduction port is connected to one branch end side, and the bathtub hot water outlet port is connected to the other branch end side. During the whitening operation, the bathtub hot water is supplied from the bathtub hot water introduction port connected to the second passage. Introduced into the second passage, circulated through the circulation path, shaped by pressure melting means The pressurized air hot water is discharged from the outlet of the fine bubble generating nozzle through the first passage, and the hot water from the bathtub hot water inlet connected to the first passage is replenished from the outlet of the fine passage generating nozzle. 5. After being introduced into one passage and circulated through the circulation path, the water is discharged from a bath hot water outlet port connected to the second passage through the second passage. The bath apparatus as described in any one of.   The circulation connector is provided with the back side facing the bathtub wall side, the discharge port of the fine bubble generating nozzle is formed on the front upper side or the upper wall portion of the circulation connector, and the bathtub hot water outlet is formed on the circulation connector. The bath apparatus according to claim 5, wherein the bath apparatus is formed on the lower front side or the lower wall portion.

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