JP2006292256A - Hot water discharge device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot water discharge device capable of blowing mist-like hot water with fine droplet diameter through a simple structure. <P>SOLUTION: The hot water discharge device 1 comprises a plurality of mist nozzles 3 blowing mist-like hot water; and an axial flow fan part 2 colliding the mist-like hot water blown out of the mist nozzles 3 to blades 6a of a propeller fan 6 to be rotated to further atomize it, and the device blows the further atomized mist-like hot water in the axial direction along an air flow generated by rotating the propeller fan 6. The mist-like hot water diffused in the circumferential direction of the propeller fan 6 is further atomized by being passed through a mesh plate part such as a wire gauze with a fine mesh provided on a blowout air passage connecting port 14 formed in an air passage forming wall part 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hot and cold water spraying device that sprays hot water that is at least either hot water or water in a mist form. Specifically, by spraying mist-like hot water on an impeller that generates an air flow in the axial direction and further atomizing it, it is possible to blow out mist-like hot water with a small water droplet diameter with a simple configuration. is there.

  2. Description of the Related Art Conventionally, an apparatus called a mist sauna apparatus or the like that sprays mist-like hot water into a bathroom and heats the bathroom has been proposed. The mist sauna device sprays hot water supplied from a water heater in the form of a mist with a nozzle.

  In order to eject mist-like hot water having a small water droplet diameter with a single nozzle, it is necessary to make the nozzle hole diameter small and the pressure of the supplied hot water is high. However, in the case of a condominium or a midnight hot water supply, since the supplied water pressure is low, a nozzle with a small hole diameter alone cannot eject a sufficient amount of mist-like hot water. For this reason, the technique which installs a pressurization pump and maintains the supplied water pressure is proposed (for example, refer to patent documents 1).

Japanese Patent Publication No. 6-9598

  However, when the hole diameter of the nozzle is reduced, there is a problem that the nozzle is clogged with dust or the like. Moreover, since a pressurization pump is installed, there exists a problem that installation cost becomes high.

  Furthermore, a technology for supplying hot water to a centrifugal fan that is driven to generate mist-like hot water by centrifugal force has also been proposed, but an air passage structure for blowing out mist-like hot water blown by centrifugal force in a desired direction Another problem is that a separate fan is required and the cost is high. Moreover, there exists a problem that the mist-like warm water blown off with the centrifugal force adheres to the wall surface etc. which comprise an air path, and a mist formation rate is low.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a hot water spraying device capable of blowing out mist-like hot water having a small water droplet diameter with a simple configuration.

  In order to solve the above-described problem, the hot water spraying device according to the first aspect of the present invention is driven by the jetting means for jetting the mist-like hot water and the driving means, so that air flows in from the axial direction and flows out in the axial direction. The diffusing means for making the mist-like hot water spouted from the spout means collide with the rotationally driven impeller, and the flow of air generated by rotationally driving the impeller And an air outlet that blows out atomized hot water that is formed in the axial direction of the impeller along the axis.

  According to a second aspect of the present invention, there is provided the hot water / spraying device according to the first aspect, wherein the plurality of jetting means are arranged in an annular shape along the rotation trajectory of the impeller. And

  According to a third aspect of the present invention, there is provided the hot water / spouting device according to the first or second aspect, wherein the number of ejection means equal to the number of blades of the impeller corresponds to the spacing of the blades. It is arranged at intervals.

  According to a fourth aspect of the present invention, there is provided the hot water / spouting device according to the first, second or third aspect, wherein the end of each blade of the impeller has a gap in the axial direction. It is formed and has an overlapping part in the rotation direction.

  The hot and cold water spraying device of the invention according to claim 5 is the hot water and water spraying device of the invention according to claim 1, 2, 3 or 4, wherein a cylindrical air passage forming wall portion is provided around the impeller. A blower outlet provided with an air passage communication opening having a mesh member for atomizing hot water passing through the air passage forming wall on the side of the impeller in the circumferential direction, and communicating with the air passage communication opening Is provided in the axial direction of the impeller.

  The hot and cold water spraying device of the invention according to claim 6 is characterized in that, in the hot water and water spraying device of the invention of claim 5, a drain member for recovering water is provided at the lower part of the air passage forming wall portion. To do.

  The hot and cold water spraying device of the invention according to claim 7 is the hot water and water spraying device of the invention according to claim 1, 2, 3, 4, 5 or claim 6, and starts to rotate the impeller by the driving means. Then, after a predetermined time has elapsed, the spraying means starts spraying of mist-like hot water, and after the lapse of a predetermined time after stopping the spraying of mist-like hot water from the spraying means, the drive means rotates the impeller. Control means for stopping is provided.

  According to the hot and cold water spraying device of the present invention, the mist-like hot water ejected from the ejection means is made to collide with the rotationally driven impeller to be atomized to further form the mist-like hot water ejected from the ejection means. The water droplet diameter can be blown out as fine mist-like hot water.

  As a result, the water pressure of the hot water supplied to the spraying means is low, and even with a configuration in which the spraying means alone sprays mist-like hot water having a coarse waterdrop diameter, it is possible to blow out mist-like hot water with a small waterdrop diameter, and to increase the water pressure. The installation of a pressurization pump and the injection means which can eject the mist-like hot water with a fine water droplet diameter become unnecessary, and can reduce manufacturing cost and installation cost low.

  In addition, since mist-like hot water is blown out along the flow of air generated by the rotating motion of the impeller that atomizes the mist-like hot water, the mist-like hot water can be efficiently blown out with a single impeller, and mist High-rate equipment can be provided at low cost.

  Hereinafter, an embodiment of a hot water and water spraying device of the present invention will be described with reference to the drawings.

<Configuration example of hot water sprinkling device>
FIG. 1 is a block diagram showing an example of a hot and cold water spraying device according to the present embodiment. FIG. 1 (a) is a plan view seen from the lower surface side, and FIG. It is sectional drawing. FIG. 2 is a cross-sectional view showing an example of the hot water and water diffusing device of the present embodiment. FIG. 2 (a) is a cross-sectional view taken along line BB of FIG. 1 (a), and FIG. It is CC sectional view taken on the line of a).

  A hot water spray device 1 according to the present embodiment includes an axial fan unit 2 that atomizes and sprays mist of hot water, a mist nozzle 3 that supplies mist of hot water to the axial fan unit 2, and an axial fan unit 2. The main body case 4 which forms the air path for blowing out the mist-like hot water by is provided.

  The axial fan unit 2 is an example of a diffusing unit, and includes a fan motor 5 and a propeller fan 6 that is rotationally driven by the fan motor 5. The fan motor 5 is an example of a driving unit, and the shaft 5a is arranged vertically.

  The propeller fan 6 is an example of an impeller, and a plurality of blades 6a are attached at a predetermined attachment angle. In the present embodiment, the propeller fan 6 includes, for example, four blades 6a, and the end portions of the adjacent blades 6a have a predetermined interval in the axial direction and an overlapping portion 6b in the rotational direction. is there. Thereby, the propeller fan 6 is a form by which a clearance gap is not formed between each blade | wing 6a seeing from an axial direction.

  The axial fan unit 2 is configured such that a propeller fan 6 is attached to a shaft 5 a of a fan motor 5, and the propeller fan 6 is rotationally driven by the fan motor 5. Flows in from the direction and flows out in the axial direction.

  The mist nozzle 3 is an example of an ejection unit, and is supplied with warm water or water and ejects it in the form of a mist. The mist nozzle 3 is arranged at a position along the rotation locus of the blades 6a of the propeller fan 6 on the upstream side with respect to the flow direction of the air generated when the propeller fan 6 of the axial flow fan unit 2 is rotationally driven. The mist-like hot water is ejected toward the blades 6a of the propeller fan 6.

  In the present embodiment, for example, the same number of mist nozzles 3 as the number of blades 6a of propeller fan 6 are arranged at equal intervals along the rotation trajectory of blades 6a of propeller fan 6. Thus, the mist nozzles 3 are arranged side by side on the circumference at the same intervals as the intervals between the blades 6 a of the propeller fan 6.

  The main body case 4 has, for example, a rectangular parallelepiped outer shape, and the inside is partitioned by a cylindrical air passage forming wall portion 7. The upper end of the air passage forming wall portion 7 is connected to the lower surface of the ceiling portion of the main body case 4. Further, the air passage forming wall portion 7 is partially connected to the two opposite side surfaces of the main body case 4. Furthermore, a part of the outer peripheral surface of the air passage forming wall portion 7 is connected to the other two side surfaces of the main body case 4 through two partition wall portions 7a. Thereby, the outer peripheral surface of the air passage forming wall portion 7 is supported by the two opposing side surfaces of the main body case 4 and the four partition wall portions 7a.

  In addition, it is good also as a structure which provides the rib 7b between the partition wall parts 7a, and supports the outer peripheral surface of the air path formation wall part 7 further.

  The main body case 4 includes a first blowing air passage 8 inside the air passage forming wall portion 7 and a second blowing air passage 9 and a suction air passage 10 outside the air passage forming wall portion 7. The first blowing air passage 8 is formed as a cylindrical space whose outer periphery is partitioned by the air passage forming wall portion 7. Moreover, the 2nd blowing air path 9 is formed in the two places which oppose on both sides of the 1st blowing air path 8 around the air path formation wall part 7, for example. Further, the suction air passage 10 is formed around the air passage forming wall portion 7 at, for example, four places partitioned by the second blowing air passage 9 and the partition wall portion 7a.

  In the main body case 4, the axial fan unit 2 is attached to the first blowing air passage 8. That is, the fan motor 5 of the axial fan unit 2 is attached to the main body case 4 on the upper surface of the ceiling portion of the first blowing air passage 8. The shaft 5a of the fan motor 5 passes through the ceiling portion of the first blowing air passage 8 and protrudes in the vertical direction, and the propeller fan 6 is attached to the shaft 5a. The first blowing air passage 8 has a diameter larger than the diameter of the propeller fan 6, and the propeller fan 6 is configured to be rotatable within the first blowing air passage 8.

  The main body case 4 includes a nozzle mounting portion 11 around the shaft 5a of the fan motor 5 on the lower surface of the ceiling portion of the first blowout air passage 8, and the nozzle mounting portion 11 has the above-described predetermined arrangement with the mist nozzle. 3 is attached.

  In addition, in order to prevent water leakage from the first blowing air passage 8 side to the fan motor 5 side, the shaft 5 a between the propeller fan 6 and the nozzle mounting portion 11 is provided with a shielding blade 12. The shielding blade 12 is, for example, a disk whose bottom surface has a wave shape, and rotates together with the propeller fan 6.

  The shielding blade 12 covers the base portion of the shaft 5a of the fan motor 5 that protrudes from the nozzle mounting portion 11 so as to repel the mist-like hot water diffused upward by hitting the propeller fan 6 and leaking water to the fan motor 5 side. prevent. Moreover, by making the lower surface of the shielding blade 12 into a wave shape, atomized hot water is diffused to promote atomization.

  Each suction air passage 10 and the first blow-off air passage 8 communicate with each other through a suction air passage communication port 13 formed in the air passage forming wall portion 7. The suction air passage communication port 13 is formed so as to penetrate the upper portion of the air passage forming wall portion 7 higher than the mounting position of the propeller fan 6.

  Here, for example, the upper part of the suction air passage 10 is configured with a curved surface so that turbulence does not occur when air flows from the suction air passage 10 through the suction air passage communication port 13 to the first blowout air passage 8. To do. For this reason, for example, the four corners at the top of the main body case 4 may be configured with curved surfaces having large diameters.

  Further, the first blowout air passage 8 and the second blowout air passage 9 communicate with each other via a blowout air passage communication port 14 formed in the air passage forming wall portion 7. The blowout air passage connection port 14 is formed so as to penetrate the air passage forming wall portion 7 in the vicinity of the height equivalent to the attachment position of the propeller fan 6, and the reticulated plate portion 14 a is attached thereto. The net-like plate portion 14a is formed of, for example, a fine wire mesh, and atomizes the mist-like hot water passing through the blowout air passage connection port 14.

  The main body case 4 has a lower part of the first air outlet 8 to open to form a first air outlet 8a, and a lower part of each second air outlet 9 to open to a second air outlet 9a. Is formed. Furthermore, the lower part of each suction air path 10 opens, and the suction inlet 10a is formed.

  As a result, an air passage is formed from each intake port 10a through each intake air passage 10 and connected to the first blowout air passage 8 via the intake air passage connection port 13 to reach the first air outlet 8a. Further, an air passage is formed from the first blowout air passage 8 to the second blowout air passage 9 through the blowout air passage connection port 14 to reach the second air outlet 9a.

  The main body case 4 includes a drain pan 15 that is a drain member at the lower portion of the air passage forming wall portion 7. The drain pan 15 has a ring shape that matches the shape of the air passage forming wall portion 7, has a groove into which the lower end of the air passage forming wall portion 7 is inserted, and is transmitted through the inner peripheral surface and the outer peripheral surface of the air passage forming wall portion 7. Receive drops of water.

  Further, the drain pan 15 is provided with a drain hose port 15a at one place in the circumferential direction so that water received from the air passage forming wall portion 7 can be drained from the drain hose port 15a. For this reason, the drain pan 15 is in an inclined state so that the drain hose port 15a side is lowered. The drain pan 15 may be configured to be detachable from the air passage forming wall 7 or the like so that cleaning can be performed.

  The main body case 4 includes a front panel 16 at the lower part. The main body case 4 includes a hook portion 4a for fixing the front panel 16, and the front panel 16 is detachably attached.

  The front panel 16 includes a blowout grill 16a that communicates with the first blowout port 8a and the second blowout port 9a and blows out the atomized water spray. Further, the front panel 16 includes a suction grill 16b that communicates with the suction port 10a and sucks air.

  In addition, for example, the auxiliary mist nozzle 17 may be provided in the second air outlet 9a so that the mist of hot water can be preliminarily blown out at the operation start stage or the like. As the auxiliary mist nozzle 17, for example, one of the second air outlets 9a is provided with an auxiliary mist nozzle 17a having a fine water droplet diameter to be ejected, and the other second air outlet 9a is ejected. It is good also as a structure which equips with the auxiliary mist nozzle 17b with a coarse water droplet diameter of mist-like hot water, and blows out the mist-like hot water from which a water droplet diameter differs as needed.

<Installation example of the hot and cold water spray device of the present embodiment>
FIG. 3 is a schematic cross-sectional view of a bathroom showing an installation example of the hot and cold water spreading device 1 of the present embodiment. The hot and cold water spreading device 1 according to the present embodiment is installed on the ceiling of the bathroom 51. The hot and cold water spraying device 1 is attached in a form in which the main body case 4 is fitted into an opening opened in the ceiling panel 52 of the bathroom 51 and the front panel 16 is exposed from the ceiling panel 52.

  As an attachment position of the hot-water sprinkling device 1, for example, the upper portion of the bathtub 53 is used. The auxiliary mist nozzle 17 shown in FIG. 1 is set in a mounting direction or the like so as to blow out mist-like hot water in the direction of the washing area 54 adjacent to the bathtub 53.

  The hot water spraying device 1 is connected to the hot water heater 55 via a pipe 56 and receives supply of hot water from the hot water heater 55. Moreover, the hot and cold water spraying device 1 is connected to a water supply pipe (not shown) and receives supply of water (clean water). The water heater 55 may supply hot water to the bathroom 51 and the entire building (not shown).

<Configuration example of the control system of the hot and cold water spray device of the present embodiment>
FIG. 4 is a functional block diagram of the hot and cold water spreading device 1 of the present embodiment. The hot water spraying device 1 includes a control unit 21 configured by a CPU or the like. The control unit 21 includes a remote control device 22, the fan motor 5 described with reference to FIG. 1, the hot water heater 55 illustrated in FIG. The electromagnetic valve 23 which switches the presence or absence of water supply is provided.

  The remote control device 22 is an operation unit that receives an operation of a user such as a bather, and is attached to, for example, a wall surface of a washroom 57 adjacent to the bathroom 51 shown in FIG. The remote control device 22 and the main body of the hot and cold water spreading device 1 are connected by, for example, electric wiring, and a signal corresponding to an operation such as operation start or operation stop is sent to the control unit 21.

  The control unit 21 is an example of a control unit that drives the fan motor 5 according to the operation of the remote control device 22 and opens and closes the electromagnetic valve 23 to blow out the atomized mist-like hot water.

  The electromagnetic valve 23 includes, for example, a first electromagnetic valve 23a that switches whether water is supplied to the mist nozzle 3, a second electromagnetic valve 23b that switches whether water is supplied to the auxiliary mist nozzle 17a, and an auxiliary mist nozzle 17b. A third solenoid valve 23c for switching the presence or absence of water supply is provided.

  Moreover, each solenoid valve is the structure which can perform switching and mixing of the water supply from the hot water heater 55 shown in FIG. 3, and the presence or absence of the water supply from the water supply pipe which is not shown in figure.

<Example of operation of the hot water and water diffusing device of the present embodiment>
Next, an example of the operation of the hot and cold water spraying device 1 according to the present embodiment will be described with reference to the drawings.

  First, when the remote control device 22 shown in FIG. 4 or the like is operated and the start of operation of the hot and cold water spraying device 1 is instructed, the control unit 21 starts to rotate the fan motor 5 of the axial fan unit 2. When the fan motor 5 is driven to rotate, the propeller fan 6 rotates in the direction indicated by the arrow a in FIG. In this example, the diameter of the propeller fan 6 is set to 150 mm as an example, and the rotation speed of the fan motor 5 is set to 3000 rpm as an example.

  When the propeller fan 6 rotates in the direction of arrow a, the air in the bathroom 51 flows from the suction air passage 10 communicated by the first blowout air passage 8 and the suction air passage connection port 13 through the suction grill 16b of the front panel 16. Inhaled.

  The air sucked from the suction grille 16b of the front panel 16 is sucked from the suction air passage 10 through the suction air passage connection port 13 into the first blowout air passage 8, and passes through the first blowout air passage 8 to the front. It blows out into the bathroom 51 from the blowing grill 16a of the panel 16.

  When the rotation of the fan motor 5 is started, the control unit 21 opens the second electromagnetic valve 23b and the third electromagnetic valve 23c at the same time, and ejects mist-like hot water from the auxiliary mist nozzle 17a and the auxiliary mist nozzle 17b. .

  When the mist-like hot water is ejected from the auxiliary mist nozzle 17a and the auxiliary mist nozzle 17b, the mist-like hot water from the blowing grill 16a of the front panel 16 flows into the washing area 54 of the bathroom 51 by the air flow generated in the axial flow fan unit 2. Blows in the direction and warms the washing area.

  In the operation of ejecting the mist-like hot water from the auxiliary mist nozzle 17a and the auxiliary mist nozzle 17b, the auxiliary mist nozzle 17 that ejects the mist-like hot water may be selectively switched.

  When the controller 21 starts to rotate the fan motor 5 and a predetermined time elapses, the controller 21 opens the first electromagnetic valve 23 a and ejects mist-like hot water from the mist nozzle 3. Here, the time from the start of rotational driving of the fan motor 5 to the time when the mist nozzle 3 ejects the mist-like hot water is, for example, the time until the rotational speed of the propeller fan 6 reaches a predetermined rotational speed. Set in consideration.

  In addition, when the mist nozzle 3 starts to eject the mist-like warm water, the control unit 21 closes the second solenoid valve 23b and the third solenoid valve 23c, and the mist-like warm water is ejected from the auxiliary mist nozzles 17a and 17b. To stop. It should be noted that the timing of stopping the spray of mist-like hot water from the auxiliary mist nozzle 17 may be after a predetermined time has elapsed after the mist nozzle 3 starts to spray the mist-like warm water. Further, the timing of stopping the spray of the mist-like hot water from the auxiliary mist nozzles 17a and 17b is not time, but when the temperature and humidity in the bathroom 51 are detected by a detection means (not shown) and the predetermined temperature and humidity are reached. You may make it stop at.

  When mist-like hot water is ejected from the mist nozzle 3 while the propeller fan 6 is rotating, the mist-like hot water ejected from the mist nozzle 3 collides with the blades 6a of the propeller fan 6 and is diffused, and the droplet diameter further increases. It becomes fine and atomized. For example, the water droplet diameter is about 3 to 5 microns.

  The atomized hot water that collides with the blades 6a of the propeller fan 6 and atomized is the first air outlet formed in the axial direction of the propeller fan 6 by the flow of air generated by the rotation of the propeller fan 6 From 8a, the air is blown into the bathroom 51 through the blow grill 16a of the front panel 16.

  Thereby, from the blowing grill 16a of the front panel 16, the mist-like hot water according to the temperature of the hot water supplied from the hot water heater 55 is mixed with the air according to the temperature of the bathroom 51 and blown out. 51 is warmed while being humidified.

  Further, the mist-like hot water that collides with the blade 6 a of the propeller fan 6 and diffuses in the radial direction communicates with the blowout air passage formed on a part of the outer periphery of the air passage forming wall portion 7 in accordance with the mounting position of the propeller fan 6. Enter the second blowing air passage 9 from the mouth 14. Since the blowout air passage connection port 14 includes a mesh-like plate portion 14a made of a fine wire mesh, the mist-like hot water passing through the net-like plate portion 14a of the blowout air passage connection port 14 has a finer water droplet diameter. And atomized. And the mist-like hot water atomized through the mesh-like board part 14a of the blowing air passage connection port 14 is blown out into the bathroom 51 through the blowing grill 16a of the front panel 16 from the second blowing port 9a. .

  A part of the mist warm water that collides with the blade 6 a of the propeller fan 6 and diffuses in the radial direction adheres to the inner peripheral surface of the air passage forming wall portion 7, and the inner peripheral surface of the air passage forming wall portion 7. Fall through. Further, part of the mist-like hot water that has passed through the blowout air passage connection port 14 adheres to the outer peripheral surface of the air passage forming wall portion 7 and falls along the outer peripheral surface of the air passage forming wall portion 7.

  A drain pan 15 is provided at the lower part of the air passage forming wall portion 7, and water drops falling along the inner and outer peripheral surfaces of the air passage forming wall portion 7 are collected by the drain pan 15 and drained from the drain hose port 15 a. . The drain hose port 15a is connected to the outside of the building via a hose (not shown), and the water collected by the drain pan 15 is drained outside the building, for example.

  Here, the air passage forming wall portion 7 is strongly hit by the mist-like hot water that collides with the blades 6a of the propeller fan 6 and diffuses in the radial direction. In this example, the air passage forming wall portion 7 is supported on the outer peripheral surface by the two opposing side surfaces of the main body case 4 and the four partition wall portions 7a. Thereby, while preventing the deformation | transformation of the air path formation wall part 7 by water pressure, a collision sound is restrained low.

  Moreover, the mist-like hot water which collided with the propeller fan 6 and diffused upward is rebounded by the shielding blades 12 to prevent water leakage to the fan motor 5 side. Moreover, when the lower surface of the shielding blade 12 is formed into a wave shape, the atomized warm water is diffused when colliding with the shielding blade 12 that is rotationally driven together with the propeller fan 6, and atomization is promoted.

  When the remote control device 22 is operated and the operation stop is instructed to stop the operation of the hot water spraying device 1, the control unit 21 closes the first electromagnetic valve 23 a and forms a mist from the mist nozzle 3. Stop hot water jet. Further, the control unit 21 stops the rotation of the fan motor 5 when a predetermined time elapses after the spray of the mist-like hot water from the mist nozzle 3 is stopped.

  Here, the time from when the spray of mist-like hot water from the mist nozzle 3 is stopped until the rotational drive of the fan motor 5 is stopped is, for example, until water droplets attached to the propeller fan 6 etc. are blown off and dried. The time is set in consideration of the time and the like. This prevents water droplets from falling from the blow grill 16a of the front panel 16 after the hot water spraying device 1 is stopped.

  Note that the timing of stopping the spray of mist-like hot water from the mist nozzle 3 to stop the operation may be stopped when a predetermined time has elapsed after the start of the operation, regardless of the user's operation. Further, instead of the time, the temperature and humidity in the bathroom 51 may be detected by a detection unit (not shown), and may be stopped when the predetermined temperature and humidity are reached.

<Effect of the hot water and water spraying device of the present embodiment>
In the hot and cold water spraying device 1 according to the present embodiment, the mist-like hot water ejected from the mist nozzle 3 collides with the blades 6a of the propeller fan 6 that is driven to rotate and is atomized to be ejected from the mist nozzle 3. Even if the mist-like warm water is mist-like warm water having a coarse water droplet diameter, it can be blown out as mist-like warm water having a fine water droplet diameter.

  In order to eject mist-like hot water with a small water droplet diameter using only the mist nozzle, it is necessary that the nozzle hole diameter is narrow and the water pressure of the supplied hot water is high. However, if the hole diameter of the nozzle is reduced, the problem of clogging dust tends to occur. Further, in the case of a condominium or a midnight hot water supply, since the supplied water pressure is low, a sufficient amount of mist-like hot water cannot be ejected with a single nozzle having a small hole diameter. For this reason, when a pressurizing pump is installed, costs associated with the installation of the pressurizing pump are required.

  On the other hand, in the hot and cold water spraying device 1 of the present embodiment, since it is not necessary to reduce the hole diameter of the mist nozzle 3, even if the water pressure is low, it can be handled without installing a pressurizing pump, and at low cost. Installation is possible. Moreover, occurrence of clogging of the mist nozzle 3 can be suppressed.

  Further, in the hot water spraying device 1 of the present embodiment, the mist-like hot water ejected from the mist nozzle 3 collides with the blades 6 a of the propeller fan 6 that is driven to rotate, and is atomized and generated in the propeller fan 6. The atomized hot water is blown out from the first air outlet 8a formed by opening the axial direction along the air flow. Thereby, the atomized warm water can be atomized and the atomized atomized warm water can be blown out with a single fan, and a small and low-cost apparatus can be realized.

  Further, the atomized hot water is blown out from the first air outlet 8a formed by opening the axial direction along the air flow generated by the propeller fan 6, so that it collides with the air passage forming wall portion 7. Can reduce the amount of mist-like hot water.

  Moreover, since the propeller fan 6 has a configuration in which no gap is formed between the blades 6a when viewed in the axial direction, the mist-like hot water ejected from the mist nozzle 3 can be caused to always collide with the blades 6a.

  Further, the mist-like hot water that collides with the blade 6 a of the propeller fan 6 and diffuses in the radial direction communicates with the blowout air passage formed on a part of the outer periphery of the air passage forming wall portion 7 according to the mounting position of the propeller fan 6. Since it atomizes and blows off by letting the mesh-like board part 14a of the opening | mouth 14 pass, the quantity of the water which adheres to the air-path formation wall part 7 and is collect | recovered with the drain pan 15 can be reduced.

  As a result, the amount of water drained without being mist is reduced, the rate of fine mist formation with respect to the amount of supplied hot water can be improved, and water consumption can be suppressed.

  Moreover, in the hot-water spraying apparatus 1 of this Embodiment, since the mist nozzle 3 which supplies mist-like warm water to the propeller fan 6 is provided with two or more, even if one nozzle is clogged temporarily, it continues use. Is possible.

  Furthermore, since the amount of ejection from the individual mist nozzles 3 can be suppressed, noise generated when the mist-like hot water collides with the blades 6a of the propeller fan 6 can be suppressed. Further, if the number of mist nozzles 3 is further increased, the overall ejection amount can be improved. Or when the amount of ejection as a whole is made constant, the amount of ejection from each mist nozzle 3 can be further suppressed, so that the noise when the mist-like hot water collides with the blade 6a of the propeller fan 6 is further suppressed. be able to.

  Further, in the hot and cold water spreading device 1 of the present embodiment, the same number of mist nozzles 3 as the number of blades 6a of the propeller fan 6 are arranged at equal intervals along the rotation trajectory of the blades 6a of the propeller fan 6. Thus, the mist nozzles 3 are arranged side by side on the circumference at the same intervals as the intervals between the blades 6 a of the propeller fan 6. Thereby, since the water pressure is applied substantially evenly in the circumferential direction to the propeller fan 6 that is rotationally driven, the vibration of the shaft 5a of the fan motor 5 can be prevented and the generation of noise can be suppressed.

  Note that the number of the mist nozzles 3 may not be the same as the number of blades 6a of the propeller fan 6. For example, if the mist nozzles 3 are arranged at symmetrical positions around the shaft 5a of the fan motor 5, the shaft 5a is prevented from blurring. be able to.

<Modified example of hot water and water spraying device of this embodiment>
In the above description, an example in which hot water is supplied to the mist nozzle 3 in order to heat the bathroom 51 has been described. However, for example, water is supplied to the mist nozzle 3 for the purpose of lowering the temperature of the bathroom 51 in summer or the like. You may supply.

  Further, by providing a net-like member made of a fine metal or plastic net at the outlet of the mist nozzle 3, the atomized hot water (water) before being supplied to the propeller fan 6 is atomized to produce a propeller. Further atomization by the fan 6 becomes possible.

  Moreover, although the example which installs the hot water and water spreading apparatus 1 in the ceiling of the bathroom 51 was demonstrated in FIG. 3, you may install in the wall surface of the bathroom 51. FIG. Furthermore, the installation location of the hot and cold water spraying device 1 is not limited to the bathroom 51, and may be a dedicated sauna room or the like.

  The present invention is applied to a mist sauna apparatus for heating a bathroom.

It is a block diagram which shows an example of the hot-water spraying apparatus of this Embodiment. It is sectional drawing which shows an example of the hot and cold water spreading apparatus of this Embodiment. It is a schematic sectional drawing of the bathroom which shows the example of installation of the hot and cold water spreading apparatus of this Embodiment. It is a functional block diagram of the hot and cold water spreading device of the present embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hot-water sprinkling device, 2 ... Axial fan part, 3 ... Mist nozzle, 4 ... Body case, 5 ... Fan motor, 5a ... Shaft, 6 ... Propeller Fan, 6a ... blades, 6b ... overlapping part, 7 ... air path forming wall part, 7a ... partition wall part, 7b ... rib, 8 ... first blowing air path, 8a ... first air outlet, 9 ... second air outlet, 9a ... second air outlet, 10 ... suction air passage, 10a ... air inlet, 11 ... Nozzle mounting portion, 12 ... shielding blade, 13 ... suction air passage connection port, 14 ... blowout air passage communication port, 14a ... mesh plate, 15 ... drain pan, 15a ... drain Hose port, 16 ... front panel, 16a ... blowout grill, 16b ... suction grill, 17 ... auxiliary mist nozzle, 21 ... control unit, 2 ... Remote control device, 23 ... Solenoid valve, 51 ... Bathroom, 52 ... Ceiling panel, 53 ... Bathtub, 54 ... Washing place, 55 ... Water heater, 56 ...・ Piping, 57 ... Washroom

Claims (7)

An ejection means for ejecting mist-like hot water;
It has an impeller that is rotationally driven by the driving means and in which air flows in from the axial direction and flows out in the axial direction, and the mist-like hot water ejected from the ejecting means collides with the rotationally driven impeller to finely An atomizing diffusion means;
A hot water characterized by comprising: a blowout port that blows out atomized hot water formed in the axial direction of the impeller along the flow of air generated when the impeller is rotationally driven. Sprinkler device. The hot and cold water spraying device according to claim 1, wherein the plurality of jetting units are annularly arranged along a rotation locus of the impeller. 3. The hot water and water spraying device according to claim 1, wherein the number of the ejection units equal to the number of blades of the impeller is arranged at an interval corresponding to the interval between the blades. The end of each blade of the impeller is formed with a gap in the axial direction and has an overlapping portion in the rotational direction. A wind having a cylindrical air passage forming wall portion around the impeller and having a net-like member for atomizing hot water passing through the air passage forming wall portion on the side in the circumferential direction of the impeller. With a road connection opening,
The hot and cold water spraying device according to claim 1, 2, 3, or 4, wherein a blower outlet communicating with the air passage communication opening is provided in an axial direction of the impeller. The hot / cold water sprinkling device according to claim 5, further comprising a drain member that collects water at a lower portion of the air passage forming wall portion. After a predetermined time has elapsed after starting the rotational drive of the impeller by the driving means, the spraying of the mist-like hot water from the spraying means is started and the spraying of the mist-like hot water from the spraying means is stopped. The hot and cold water spraying device according to claim 1, further comprising a control unit that stops the rotational driving of the impeller by the driving unit after a predetermined time has elapsed.

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