JP4462541B2 - Spray heating device - Google Patents

Description

  The present invention relates to a spray heating apparatus.

Conventionally, the metabolism is promoted by warming the whole body by bathing, dry sauna, wet sauna, or the like. In addition, for people who have a heavy burden on the body such as elderly people, warming air or mist is applied only to a part of the body to promote the metabolism of that part. For example, Patent Document 1 describes a bed having a cover that can be opened and closed and allowing steam to pass therethrough, and a bed provided with a chemical water tank with a heating device on a base below it. In this bed, a chemical tank is movably provided along the longitudinal direction of the bed plate, and can be moved back and forth by the operation of a person lying on the bed.
Japanese Utility Model Publication No. 63-40991

It has been desired to promote metabolism by applying hot air containing mist and steam of a mineral spring that is expected to have various effects when warming a part of the body. Here, in the technique of patent document 1, since a bed is large, an installation place is restrict | limited and it is necessary to lie on a bed in order to apply the warm air containing steam to a part of body.
The present invention has been made in view of the above problems, and can apply hot air containing mist and steam of mist generating water such as a spa to a part of the body, and drops of mist generating water fall from a fluid nozzle. It aims at provision of the spray thermal apparatus which can be used anywhere regardless of a place.

In order to achieve the above object, the spray thermal apparatus has a heater, a fan, an air intake port for taking in air, and a shape in which the air outlet is formed so that the position for blowing out hot air can be changed. The air fan is driven to rotate, the air is taken into the hot air passage from the air intake port, and the air is heated by the heater to generate hot air. A hot air generating mechanism that blows out the hot air from, a storage chamber for storing water for generating mist, a discharge tank, a valve for preventing backflow, and an inner diameter of a liquid supply pipe that is disposed and connected to the outlet A fluid nozzle in which a spraying hole is formed with a narrower inner diameter, a three-way valve capable of switching the flow direction, and a first liquid supply pipe having elasticity provided between the storage chamber and the three-way valve And is guided from the three-way valve into the hot air flow path to the fluid nozzle. A second liquid supply pipe having elasticity and a discharge port through which the water for generating fog is discharged into the discharge tank are formed, and the other end opposite to the discharge port is connected to the three-way valve. A discharge pump, a liquid supply pump capable of supplying liquid by repeatedly compressing and moving mist generation water in the first liquid supply pipe from the storage chamber toward the three-way valve, and intermittently the three-way valve. The mist generating water is allowed to flow through the first and second liquid supply pipes by allowing the first liquid supply pipe and the second liquid supply pipe to flow and operating the liquid supply pump. A spray mechanism for spraying the water for mist generation from the fluid nozzle into the warm air blown from the outlet through the storage chamber, and a predetermined time from the end of each intermittent spray Period, the second liquid supply pipe for the three-way valve Characterized in that it comprises a retraction mechanism for discharging from the discharge passage and the discharge port from the second liquid feed pipe causes enabled flow draws the mist generation water into the discharge flow path to the discharge tank And
That is, the spray mechanism is intermittently operated by the spray mechanism, so that the water for mist generation flows from the storage chamber into the liquid supply pipe, is supplied to the fluid nozzle, and is fluidized in the hot air blown out from the outlet. Mist generating water is sprayed from the nozzle. Then, warm air containing mist and water mist generating water is blown out from the outlet. Here, since the pressure is applied in the direction of the fluid nozzle to the mist generating water in the liquid feeding pipe when spraying the mist generating water, the elastic liquid feeding pipe is swollen. Therefore, if it is left as it is, the mist generating water is fed into the fluid nozzle by the relatively weak pressure remaining by the swollen liquid feeding pipe and oozes out from the fluid nozzle without being atomized, and the mist generating water drops May fall on the floor (causing dripping).
In the present invention, the water for mist generation is drawn from the fluid nozzle toward the discharge tank by the pull-in mechanism from the fluid nozzle toward the discharge tank for a predetermined period from the end point of each spray which is made intermittent. Then, the remaining pressure is quickly released by the swollen liquid feeding pipe, the mist generating water is not sent to the fluid nozzle and does not ooze out from the fluid nozzle, and the mist generating water drops do not fall. Therefore, it can be used outside the bathroom such as a living room.

Examples of the water for generating fog include various types of water such as mineral springs (including hot springs and cold springs), chemical water, and water alone. As the fluid nozzle, for example, a conical nozzle that sprays liquid in a conical shape, a fan-shaped nozzle that sprays liquid in a fan shape, and the like, various nozzles that atomize and spray liquid that is fed with pressure can be considered .

According to the invention which concerns on Claim 1 , while being able to apply the warm air containing the mist and vapor | steam of water for fog generation to a part of the body, it becomes possible to use anywhere regardless of the living room, etc. An apparatus can be provided. Moreover, since the shape of the hot air flow path is variable and the position of the outlet can be changed by operation, hot air containing mist can be applied to a desired location, and the usability can be improved. Further, since the second liquid feeding pipe having elasticity is led from the three-way valve into the hot air flow path and connected to the fluid nozzle, the second liquid feeding pipe is hidden in the hot air flow path to improve the appearance. be able to. Furthermore, since a valve for preventing a backflow is provided in the fluid nozzle, when the mist generating water is drawn in by the drawing mechanism, the mist generating water is not drawn so that a void is generated in the second liquid feeding pipe. An amount of fog can be generated .

FIG. 1 is a view showing a hot air path and a water path of a spray thermal apparatus (spray thermal health device) 100 of the present invention, FIGS. 2 and 3 are views showing an overview of the apparatus 100, and FIG. 3 is a block circuit diagram showing a control system of the apparatus 100. FIG. In FIG. 1, for simplification, the liquid supply pipes 51 to 53, 56, 57, 71 to 73, 76, 77 are shown by one line, the storage tanks 20, 60 are shown by a rectangle, and a tubular hot air flow path 13 is viewed in cross section, the tube wall is shown by one line, and the hemispherical hot air blowing cover 16 is also viewed in cross section. Note that the positional relationship between the top, bottom, left, and right front and back will be described with reference to FIG. In FIG. 3, the left direction is the forward direction and the right direction is the rear direction.
The apparatus 100 takes in external air into the apparatus via a suction filter provided on the right side surface of the metal casing 90, and blows out hot air from the hot air blowing cover 16 through a predetermined hot air flow path. A pair of lids 92, 92 that can be opened and closed are attached to the upper surface of the housing 90, and when the lids 92, 92 are opened, different mineral springs (fog generating water) are stored in the storage tanks 20, 60 housed in the upper portion of the housing 90. It is possible to put. In addition to the mineral springs, only chemical water and water may be added. The mineral springs stored in the tanks 20 and 60 whose interiors are storage chambers are intermittently sprayed into the warm air from the fluid nozzle 30 through a predetermined liquid supply passage. On the front surface of the housing 90, there is provided an operation unit 93 having a plurality of operation switches and the like, which can perform operations such as power on / off, a path, an operation mode, and a hot air temperature. Four free casters 94 are attached to the lower surface of the housing 90, and the apparatus 100 can be moved to a desired place such as a living room with a handle 95 provided on the left side surface of the housing 90. .
The hot air blowing cover 16 is made of transparent plastic having a diameter of about 20 cm and can be confirmed by seeing through the state of fog and steam contained in the hot air. And steam can be adjusted. Although not shown, rubber is stuck to the end portion 16a of the hot air blowing cover 16 so that a soft feeling can be obtained even if it contacts the body.

The hot air generation mechanism 10 includes a hot air flow path 13, a heater 11 and a fan 12 provided in the hot air flow path 13, an energization control unit 11 a that controls energization of the heater 11, and a motor 12 a that rotationally drives the fan 12. , And so on. The mechanism for generating warm air is the same as that of a futon dryer. By providing a temperature sensor that detects the temperature of the hot air to be generated and performing feedback control that causes the temperature of the hot air to be the set temperature in the energization control unit 11a, it is possible to make the temperature of the hot air that is blown out more desirable. Therefore, it is more preferable. Further, when the detected temperature exceeds a predetermined temperature (for example, 100 ° C.), it is preferable that the power supply to the heater is stopped because safety can be improved. When the power switch 93a of the operation unit 93 is turned on, the motor 12a is always energized to drive the fan 12 to rotate. The portion of the hot air flow path 13 outside the housing 90 is made variable by connecting four aluminum pipes 13a with three rotatable joints 13b, and the hot air blowing cover 16 is formed at the tip. It is connected. Each pipe 13a has the same outer diameter, and the two pipe insertion openings in each joint 13b are substantially the same as the outer diameter of each pipe 13a. Each joint 13b allows the pipes 13a to be rotated by 360 ° relative to the connected pipes 13a as an axis, and the rotation center of each pipe 13a is displaced from the outer diameter of the pipes 13a. Also make it bigger. In the warm air flow path 13, an air intake port 14 for taking in air is formed, and an air outlet 15 for blowing out warm air is formed. Since the hot air flow path 13 can change the shape of the part outside the housing 90, the position for blowing out the warm air by the operation of moving the air outlet 15 formed so that the position for blowing out the hot air can be changed. This device is convenient and can be changed.
The shape may be variable by using an elastic hose made of hard vinyl, soft vinyl, rubber or the like for the hot air flow path.

The storage tanks 20 and 60 need only be able to store a mineral spring, but considering that warm air is generated in the apparatus 100, the storage tanks 20 and 60 are made of plastic (for example, made of polypropylene) having a heat resistant temperature of 100 ° C. or higher. . Of course, it may be made of a metal such as stainless steel, or may be made of a plastic having a heat resistant temperature of 100 ° C. or less if a heat insulating structure is adopted at a place where the tank is accommodated.
The fluid nozzle 30 is disposed at the air outlet 15 that blows out hot air, and can spray a mineral spring in the hot air. This fluid nozzle has an inner diameter (for example, 0.1 to 0.2 mm) thinner than the inner diameter (for example, 5 to 7 mm) of the liquid feeding pipes 56 and 76 to which the liquid for spraying is supplied, Atomize and spray. The fluid nozzle can be a conical nozzle or the like in consideration of efficient vaporization, but may be a sector nozzle or the like. The liquid nozzle 30 has a backflow prevention valve (not shown) that prevents the liquid from flowing back, and the tip of the liquid nozzle is drawn when the mineral spring is drawn from the liquid feeding pipes 56 and 76 connected to the fluid nozzle. Air is prevented from entering. The nozzle 30 is external to the housing 90 that houses the electric circuit, and generates mist outside the housing 90, so that it is electrically safe.
This device can be said to be a device that sweats from a part of the body with the same idea as bathing a part of the body, and applies hot air containing mineral mist and steam to the part of the body from within the hemispherical cover.

This apparatus is designed as a business apparatus, and is provided with two systems of a liquid supply flow path from the storage tanks 20 and 60 to the liquid nozzle 30 and a discharge flow path branched from the liquid supply flow path. And liquid nozzles 30 are provided with liquid supply pipes 51 to 53, 56, 71 to 73, 76. Specifically, liquid feeding pipes 51 and 71 are connected to the lower portions of the tanks 20 and 60. Hereinafter, cocks 54 and 74, liquid feeding pipes 52 and 72, Y-strainers 55 and 75, liquid feeding pipes 53 and 73, Electromagnetic three-way valves (three-way valves) 50 and 70 and liquid feeding pipes 56 and 76 are sequentially connected, and a single fluid nozzle 30 is connected to the liquid feeding pipes 56 and 76 as a common atomizer. Only one of the mineral springs stored in the tanks 20 and 60 is supplied to the nozzle 30. The liquid feeding pipes 51 to 53, 56, 57, 71 to 73, 76, and 77 are all made of a material having a heat resistant temperature of 100 ° C. or more (for example, made of hard vinyl, silicone, or rubber), As a result, it is swollen or deflated according to the internal pressure, and the shape is variable.
The liquid supply pipes 51 to 53 and 71 to 73 are first liquid supply pipes provided between the storage tanks 20 and 60 and the three-way valves 50 and 70 to form a first liquid supply flow path. A liquid feed pump is attached to the liquid pipes 53 and 73. The liquid feeding pipes 56 and 76 are second liquid feeding pipes provided between the three-way valves 50 and 70 and the nozzle 30 to form a second liquid feeding flow path. In the middle of the path 13, the holes 13 a and b provided in the pipe wall are penetrated to be guided into the hot air flow path 13 and connected to the nozzle 30. Since the liquid feeding pipes 56 and 76 having elasticity are concealed in the hot air flow path 13, the appearance is good. The liquid feeding pipes 57 and 77 are third liquid feeding pipes provided between the three-way valves 50 and 70 and the upper parts of the tanks 20 and 60 to form a discharge flow path. Are formed in the tanks 20 and 60, and the other end opposite to the discharge ports 57 a and 77 a is connected to the three-way valves 50 and 70. In addition, although the height of the liquid nozzle 30 is changed by the operation of moving the air outlet 15, the liquid nozzle 30 is positioned higher than the outlets 57 a and 77 a.

The three-way valves 50 and 70 are arranged in the direction of flow between the first liquid feeding pipes 53 and 73 and the second liquid feeding pipes 56 and 76 (hereinafter referred to as the water supply side) according to the input switching signal. It is possible to switch between the directions of the second liquid supply pipes 56 and 76 and the liquid supply pipes 57 and 77 for the discharge flow path (hereinafter referred to as the water discharge side).
The liquid feed pumps 59 and 79 are attached to the liquid feed pipes 53 and 73, and the mineral springs in the first liquid feed pipes 53 and 73 are directed from the tanks 20 and 60 to the three-way valves 50 and 70 in accordance with the input on / off signal. To stop feeding or stop feeding. The liquid feeding pump uses the electric power as a driving source and repeatedly moves the roller or pulsation driver in the liquid feeding direction while pressing the elastic liquid feeding tube with the roller or pulsation driving element. Liquid can be fed by repeatedly moving the mineral springs in the pipes 53 and 73 from the storage tanks 20 and 60 toward the three-way valves 50 and 70.

  FIG. 5 shows an example of the air volume adjusting unit 40 as viewed from the position facing the air intake port 14. The air volume adjusting unit 40 includes an on-off valve 41 that is rotatably mounted around a predetermined support shaft 41a oriented in the left-right direction, and opens and closes the on-off valve 41 in a predetermined fully open position (a position indicated by a broken line in the figure). A cylinder 42 that rotates between a position (the position indicated by a solid line in the figure) and a control mechanism 43 that includes a control circuit that controls the operation of the cylinder 42 are provided. The cylinder 42 is attached to be rotatable about a predetermined support shaft 42a directed in the left-right direction. In addition, the tip of the movable shaft 42b of the cylinder 42 is rotatably attached to a latching portion 41b formed at a position opposite to the portion where the support shaft 41a is provided in the on-off valve 41. When the control mechanism 43 extends the movable shaft 41b of the cylinder to a predetermined extension position, the on-off valve 41 is set to a half-open position, and the amount of warm air generated can be reduced by reducing the amount of air taken in from the air intake port 14. it can. On the other hand, when the control mechanism 43 contracts the movable shaft 41b of the cylinder to a predetermined shortened position, the on-off valve 41 is fully opened, and the amount of hot air generated is increased by increasing the amount of air taken in from the air intake port 14. be able to.

The programmable logic controller 80 shown in FIG. 4 is a control circuit having a plurality of I / Os centered on a microcomputer, and can use various PLCs (for example, procured from OMRON Corporation) that operate as a sequencer in a pseudo manner. . The controller 80 includes a CPU 81, a ROM 82, a RAM 83, an EEPROM 84 for storing the program, a display circuit 85 for displaying the program, an input circuit 86 for operating and inputting the program, and a plurality of I / O 89a on the system bus 80a. ~ I, etc. Then, the CPU 81 executes a program written in the ROM or EEPROM to perform various controls. Cocks 54 and 74, electromagnetic three-way valves 50 and 70, liquid feed pumps 59 and 79, air volume adjustment unit 40, operation unit 93, and energization control unit 11a are connected to I / O 89a to i.
The controller 80 performs processing according to the flowchart shown in FIG. Here, the temperature of the controller 80 that performs the processing of steps S10 to S20, S24 to S26, and S34 (hereinafter, “step” is omitted) intermittently operates the liquid feed pump and blows out from the outlet. A spray mechanism that sprays the mineral spring from the fluid nozzle in the wind is constructed. Moreover, the controller 80 which performs the process of S28-S32 comprises the drawing-in mechanism which draws in a mineral spring from the fluid nozzle side in a liquid feeding pipe to a predetermined | prescribed discharge flow path for the predetermined period after completion | finish of each spray made intermittent. Further, the controller 80 that performs the processes of S22 to S24, S30, and S34 to S36 and the air volume adjusting unit 40 constitute an air volume adjusting mechanism.

Hereinafter, the operation of the spray thermal apparatus 100 will be described together with the operation of the controller 80.
First, a desired mineral spring is put in the storage tanks 20 and 60, and the path switch 93b, the operation switch 93c, and the temperature setting switch 93d of the operation unit 93 are set to desired operation positions. FIG. 7 shows a list of settings by these switches. When the operation position of the path switch is set to “1”, the mineral spring in the tank 20 is sprayed using the path 1, and when the operation position is set to “2”, the mineral spring in the tank 60 is sprayed using the path 2. be able to. When the operation position of the operation selector switch is set to “1”, intermittent spraying is performed at 70 seconds per cycle as the setting for summer, and when the operation position is set to “2”, intermittent spraying is performed at 90 seconds per cycle as the setting for spring and autumn. When the operation position is set to “3”, intermittent spraying is performed in 120 seconds per cycle as a setting for winter, and when the operation position is set to “4”, continuous spraying can be performed. When the temperature selector switch is set to “1”, “2”, “3”, “4”, “5”, the hot air is low temperature (about 60 to 70 ° C.), medium temperature, medium temperature, high temperature, and high temperature, respectively. It can be made above (about 80-90 degreeC). In summer, about 70 ° C. and in winter about 80 ° C. are preferable. Further, it is preferable to display the set temperature with the operation unit 93 or the like.
When the power switch 93a of the operation unit is turned on in the above state, the motor 12a of the warm air generating mechanism is energized to start the rotational drive of the fan 12, and the controller 80 starts the processing. The setting of the unit 93 is read (S10). For example, “1” or “2” is read for the path changeover switch 93b, and any one of “1” to “4” is read for the operation changeover switch 93c. Next, initial setting processing is performed (S12). Here, the energization control unit 11a of the hot air generating mechanism is energized corresponding to the setting of the temperature switch 93d, more specifically, the energization amount is increased as the temperature setting is higher, and the heater 11 is energized. Control is performed by outputting a signal from the I / O. Further, a signal for causing the air flow adjusting unit 40 to fully open the on-off valve 41 is output from the I / O for control, and a signal for closing the cocks 54 and 74 is output from the I / O for control. A signal for causing the water supply side to the three-way valves 50 and 70 to be output from the I / O is controlled, and a signal for turning off the liquid feeding pumps 59 and 79 (liquid feeding stop) is provided. To output and control. Further, a time parameter corresponding to the operation changeover switch 93c is set. In the following description, it is assumed that the path changeover switch is “1” and the operation changeover switch is “1”. However, the same effect is obtained when the path changeover switch is “2” and the operation changeover switch is “2” or “3”. Become.

  Hereinafter, a description will be given with reference to the timing chart shown in FIG. After the initial setting process, when the control is performed by outputting a signal for switching the cock 54 corresponding to the setting “1” of the path switch 93b to the open state (S14), the cock 54 is switched from the closed state to the open state ( Timing t1). Next, it is determined whether or not the spray is intermittently operated, specifically, whether or not the setting of the operation switch 93c is “1” to “3” (S16). When the setting of the switch is “4”, a process of continuously spraying the spa with a flow (not shown) is performed. When the setting of the switch is “1” to “3”, the process proceeds to S18 and waits for a predetermined spray waiting time T1 using the timing of the timer circuit 87. The spray waiting time T1 when the operation switch setting is “1”, “2”, “3” is the spray time T2 = 3 seconds from the time T0 = 70 seconds, 90 seconds, 120 seconds, respectively. 62.5 seconds, 82.5 seconds, and 112.5 seconds obtained by subtracting 7.5 times that is 2.5 times. At this time, since the liquid feeding pump 59 stops the liquid feeding and the three-way valve is switched to the water supply side, the mineral spring does not flow through the second liquid feeding pipe 56 and the mineral spring is not sprayed from the nozzle 30. Since the on-off valve 41 is in the fully open position, only warm air having a relatively large air volume is blown out from the outlet 15.

When the spray waiting time is over, control is performed to turn on the liquid feed pump 59 (liquid feed state) (S20), and at the same time, control is performed to switch the on-off valve 41 to the half-open position (S22). Then, while the pump 59 starts liquid feeding, the air intake port 14 is half opened by the on-off valve 41 switched from the fully open position to the half open position (timing t2). When the pump 59 operates, the spa flows from the storage tank 20 into the first liquid feeding pipe 51, and the solid matter is removed by the strainer 55 through the cock 54 and the first liquid feeding pipe 52. Further, the mineral spring is sprayed from the nozzle 30 into the hot air blown from the second liquid feed pipe 56 and the fluid nozzle 30 through the first liquid feed pipe 53 and the three-way valve 50 and blown from the blowout port 15. The Then, warm air containing the mist and steam of the mineral spring is blown out from the outlet. At this time, the air intake port 14 is half open to reduce the cross-sectional area of the flow path, and the amount of air taken in from the air intake port 14 per unit time is immediately reduced. Then, the air volume of the warm air generated in the warm air generating mechanism 10 is reduced (for example, 60 to 80% of the air volume when fully opened), and the amount of heat given from the heater per unit volume in the warm air is immediately increased. Since the heat of vaporization is absorbed from the hot air when the mist of the spa becomes steam, the temperature of the hot air containing the mist and steam of the spa will decrease for each spray as it is. Since it can be raised immediately, the temperature drop due to the mist of the spa becoming steam is prevented, the temperature of the hot air containing the mist and steam of the spa is kept constant, and the device can be used comfortably. is there.
In the above state, the spraying time T2 = 3 seconds is waited using the time count of the timer circuit 87 (S24). The spraying time T2 is the number of seconds that moisten the mist-like or steam-like spa. Here, when spraying the mineral spring, pressure is applied in the direction of the nozzle 30 to the mineral spring in the liquid feeding pipes 53 and 56 on the nozzle 30 side from the pump 59, so that the liquid feeding pipes 53 and 56 having elasticity swelled. It becomes a state.

When the spraying time is over, control is performed to turn off the liquid feed pump 59 (liquid feed stop) (S26), and at the same time, control is performed to switch the electromagnetic three-way valve 50 to the water discharge side (S28). Then, the pump 59 stops liquid feeding, and the flow direction of the three-way valve 50 becomes the direction of the second liquid feeding pipe 56 and the liquid feeding pipe 57 for the discharge flow path (timing t3). Since S18 to S36 are repeatedly performed, the first three feeding pipes 51 to 53 and the second feeding pipe 56 can be circulated with respect to the electromagnetic three-way valve 50 intermittently (for example, three seconds in one cycle 70 seconds). Then, the pump 59 is operated to send the mineral spring from the storage tank 20 to the fluid nozzle 30 via the liquid feeding pipes 51 to 53, 56, and the mineral spring is discharged from the nozzle 30 into the warm air blown from the outlet 15. Spray.
Here, since the nozzle 30 is positioned higher than the discharge port 57 a and the second liquid feeding pipe 56 is in a swelled state, the mineral spring in the liquid feeding pipe 56 is not compressed by the elasticity of the liquid feeding pipe 56. It is pulled back from the side to the three-way valve 50 side (storage tank 20 side), and the mineral spring is drawn from the liquid supply pipe 56 to the liquid supply pipe 57 for the discharge flow path, and discharged into the storage tank 20 from the discharge port 57a. Since the drawn mineral spring is discharged into the tank 20, it is possible to generate hot air including fog by efficiently using the mineral spring.
In the above state, using the time count of the timer circuit 87, it waits for the pull-in time T3 = 1 second (predetermined period) (S30). Here, since the nozzle 30 has a valve for preventing backflow, air does not enter the liquid feeding pipe 57 from the nozzle 30 even if the pressure of the mineral spring generated in the liquid feeding pipe 56 is released. The pull-in time T3 is a period that starts immediately after the end of each spray (timing t3) and ends by the start of the next spray (timing t6), and the period T2 = 3 of each spray. Has been shorter than seconds. Even when there is a possibility that air is mixed into the liquid feeding pipe 57 from the nozzle 30 when the mineral spring is drawn in, a large gap does not occur in the liquid feeding pipe when the mineral spring is drawn in. The amount of air sent to the fluid nozzle is small, and it is possible to generate a stable amount of fog for the mineral spring.

After completion of the pull-in time, control is performed to switch the electromagnetic three-way valve 50 to the water supply side (S32). Then, the flow direction of the three-way valve 50 is the direction between the first liquid feeding pipes 51 to 53 and the second liquid feeding pipe 56 (timing t4). Since S18 to S36 are repeatedly performed, the second liquid supply pipe 56 and the discharge flow path are allowed to flow through the three-way valve 50 intermittently for a predetermined period from the end of each spray, and discharged from the liquid supply pipe 56. The mineral spring is drawn into the flow path and discharged from the discharge port 57a into the storage chamber.
In the above state, the wind time after pull-in T4 = 4.5 seconds (predetermined period) is waited using the time count of the timer circuit 87 (S34). Then, control which switches the on-off valve 41 to a fully open position is performed (S36), and it returns to S18. Then, the air intake port 14 returns to full open by the on-off valve 41 switched from the semi-full open position to the full open position (timing t5).
Here, the period (timing t2 to t5) in which the amount of warm air to be generated is reduced is set to 7.5 seconds longer than the spray time T2 = 3 seconds. This takes into account the time during which the sprayed mineral springs are vaporized and the heat of vaporization is taken away from the warm air. By reducing the amount of warm air generated for a period of about 3 to 6 seconds longer than the spray time, it is more reliable. The temperature of warm air hitting the body is kept constant.
Note that the timing t5 returns to the same state as the timing t1, and the same operation as the timing t2 to t5 is performed at the timing t6 to t9.

  As described above, the pressure remaining in the swollen liquid supply pipe (from the pressure at the time of liquid supply) by drawing the mineral spring from the fluid nozzle side in the liquid supply pipe to the predetermined discharge channel for a predetermined period after the end of each spray. (Low pressure) is released quickly, the spa is no longer fed into the fluid nozzle and does not ooze out of the fluid nozzle, and the spa drops do not fall. Therefore, the blower outlet can be moved to a desired position so that warm air containing fog and steam from the mineral spring can be applied to a part of the body, and can also be used outside a bathroom such as a living room. For example, elderly people may not be able to create a state of sweating activity due to a small amount of exercise, but unlike the whole body bathing, there is no pressure on the human body due to water pressure. It can be used with a good mood. As a result, it is possible to obtain the same effect as a part of hot spring bathing (mist sauna) in a free position while watching TV in the living room, and it produces refreshing sweat and drains waste from the body with sweat, leading to health promotion. It becomes possible. Moreover, since only a part of the body is warmed and the components of the spa are applied, the electricity bill is small and the amount of use of the spa is low, so the economic effect is outstanding. Furthermore, since the hot air outlet can be changed to the desired location and hot air can be applied to a desired body part, it is easy to use and can be used by switching between two types of mineral springs.

  Further, by operating the operation changeover switch, if the period of one cycle is shortened and the ratio of the spray period of water for generating mist (spray time T2 / 1 cycle time) is increased as the temperature rises, The average heat of vaporization of mist generation water increases, so the temperature of warm air containing mist and steam of mist generation water decreases, but the temperature of warm air is compared when it is blown into the air outside the device with high air temperature. It is hard to drop. On the other hand, if the time of one cycle is lengthened and the ratio of the spray time of the mist generating water is decreased as the temperature is lowered, the average heat of vaporization of the mist generating water per unit time decreases. Although the temperature of the warm air containing steam rises, the temperature of the warm air is relatively low when blown out into the air outside the apparatus where the temperature is low. Therefore, the interval between each spray period is decreased stepwise as the air temperature increases while keeping the spray period constant (same as increasing the interval between each spray step stepwise as the air temperature decreases). According to the mist generating water spraying method, the difference in the temperature of the warm air hitting the body due to the difference in the air temperature is reduced, and it becomes possible to use the spray heating apparatus more comfortably.

In the present invention, various modifications can be considered. For example, the liquid supply flow path and the discharge flow path may be only one system suitable for home use or three or more systems in addition to the two systems. Further, a discharge tank for storing the mist generation water as drain water may be provided separately from the storage tanks 20 and 60, and the mist generation water discharged from the discharge port may be discharged into the discharge tank.
Further, as shown in FIG. 9, a liquid feeding pipe 151 is connected to the lower part of the storage tank 20, and hereinafter, a cock 154, a liquid feeding pipe 152, a Y-shaped strainer 155, and a liquid feeding pipe 153 are connected in order. While the fluid nozzle 30 is connected to the pipe 153 as an atomizer, a liquid supply pipe (predetermined discharge flow path) 157 for the discharge flow path may be connected between the nozzle 30 and the upper portion of the tank 20. The liquid supply pipe 157 has a discharge port 157a through which the mineral spring is discharged into the tank 20, and a liquid supply pump 158 having the same configuration as the liquid supply pump 159 is attached to the liquid supply pipe 157 for the discharge flow path. In response to the input ON / OFF signal, the mineral spring in the liquid feeding pipe 157 is fed from the fluid nozzle 30 toward the tank 20 or stopped. Then, the liquid feeding pump 159 is turned on at the start of the spraying period, and flows into the liquid feeding pipes 151 to 153 from the tank 20 and sent to the nozzle 30. The liquid feeding pump 159 is turned on at the end of the spraying period and at the start of the drawing time. When the liquid feed pump 158 is turned on and the mineral spring is drawn from the nozzle 30 side of the liquid feed pipe 153 to the liquid feed pipe 157 for the discharge flow path, the same operation and effect can be obtained.
As described above, according to the present invention, warm air containing fog or steam for water for generating fog can be applied to a part of the body according to various aspects, and can be used anywhere regardless of the place such as a living room.

The figure which shows the warm air path | route and water path | route of a spray thermal apparatus. The front view which sees and shows a spraying thermal apparatus from the front. FIG. 3 is a right side view showing the spray thermal apparatus as viewed from the right side of FIG. 2. The block circuit diagram which shows the outline of the electric circuit of a spray thermal apparatus. The right view which shows and shows an air volume adjustment part from the position which faces an air intake opening. The flowchart which shows the process which the controller of a spray thermal apparatus performs. The figure which shows the list of the setting by a path | route changeover switch and an operation | movement changeover switch. Timing chart showing operation timing of spray thermal apparatus The figure which shows the warm air path | route and water path | route of the spray thermal apparatus in a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Warm air generating mechanism, 11 ... Heater, 12 ... Fan, 13 ... Warm air flow path, 14 ... Air intake port, 15 ... Air outlet, 16 ... Warm air blowing cover, 20, 60, 120 ... Storage tank, 30 ... Fluid nozzle, 40 ... Air volume adjusting unit, 50, 70 ... Electromagnetic three-way valve (three-way valve), 51-53, 71-73 ... First liquid feeding pipe, 54, 74, 154 ... Cock, 55, 75, 155 ... Y-strainer, 56,76 ... second liquid feeding pipe, 57,77,157 ... liquid feeding pipe for discharge flow path (predetermined discharge flow path), 57a, 77a, 157a ... discharge port, 59,79 158, 159 ... Liquid feed pump, 80 ... Programmable logic controller, 90 ... Housing, 100 ... Spray thermal apparatus, 151-153 ... Liquid feed pipe

Claims (1)

It has a heater, a fan, and an air intake port for taking in air, and a hot air flow path with a variable shape in which a blowout port is formed so that the position for blowing out hot air can be changed. A hot air generating mechanism that drives the air into the hot air flow path from the air intake port, heats the air with the heater to generate the hot air, and blows the hot air from the air outlet;
A storage chamber for storing fog generation water;
A discharge tank;
A fluid nozzle having a valve for backflow prevention, disposed at the outlet, and having a spray hole formed with an inner diameter narrower than an inner diameter of a connected liquid feeding pipe;
A three-way valve that can switch the flow direction;
A first liquid feeding pipe having elasticity provided between the storage chamber and the three-way valve;
A second liquid supply pipe having elasticity, which is led from the three-way valve into the hot air flow path and connected to the fluid nozzle;
A discharge passage in which a discharge port through which the water for mist generation is discharged into the discharge tank is formed and the other end opposite to the discharge port is connected to the three-way valve;
A liquid feed pump capable of feeding liquid by repeatedly squeezing and moving the water for mist generation in the first liquid feed pipe from the storage chamber toward the three-way valve;
Intermittently allowing the three-way valve to circulate between the first liquid feeding pipe and the second liquid feeding pipe and operating the liquid feeding pump via the first and second liquid feeding pipes. Spraying the mist generating water from the fluid nozzle into the hot air blown from the outlet through the liquid from the storage chamber to the fluid nozzle.
Allow the three-way valve to flow between the second liquid supply pipe and the discharge flow path for a predetermined period from the end of each spray that has been made intermittent, and from the second liquid supply pipe to the discharge flow path. A spray heating apparatus comprising a drawing-in mechanism that draws the water for mist generation into the discharge tank from the discharge port.

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