JPH11229471A - Sanitary washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain usage feeling while washing private parts with washing water forcibly mixed with air and heated. SOLUTION: The air is forcedly supplied to an inside passage from a suction head 8 by a compressor 11 to make washing water two-phase flow of gas and liquid, while the washing water is instantly directly heated by a ceramic heater 6 in a heat exchanger 5 forming a part of a pipe passage, and heated to a desired temperature. The ceramic heater 6 encloses an electric heating part by a ceramic having thermal transfer and electric insulation, heat generated in the electric heating part is quickly transmitted to the washing water through the ceramic, and washing water temperature is made the desired temperature at high response. Thereby the washing water of the desired temperature in which the washing water temperature is substantially nearly constant is jetted in the two-phase state of gas and liquid. Through the energization control of the ceramic heater 6 in accordance with the fluctuation of a amount of the washing water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sanitary washing apparatus for ejecting washing water to clean a part of a human body, wherein the washing water is foamed and quiet washing water can be ejected.

[0002]

2. Description of the Related Art A sanitary washing apparatus having a local washing function is provided by:
In general, a structure in which hot water is jetted toward a local area by a nozzle device is shown in FIG.

In the figure, a casing 1 of a sanitary washing device is fixed to a toilet body 50, and a toilet seat 6 is attached to the casing 1.
0 and the toilet lid 61 are attached so as to be openable and closable. Inside the casing 1, a tank for heating the washing water, a hot air fan for drying, and a control unit are incorporated, and the operation of each function is performed by an operation unit 1a provided on the upper surface of the casing 1. Then, a nozzle body 51 for local cleaning is provided so as to be able to protrude and retract from the casing 1, and after it is advanced to the cleaning position, the cleaning water is blown out from the blowing hole of the nozzle head at the tip.

FIG. 7 is a schematic view showing a supply system of washing water to the nozzle body 51, using a valve unit 52 having an opening / closing valve and a flow rate adjusting valve function, a ceramic heater or a sheath heater for directly heating and sending out water. A heat exchange 53 and a control unit 54 are provided, and a flow rate adjustment switching unit 55 is incorporated between the heat exchanger 53 and the nozzle body 51.
Then, the nozzle body 51 is driven and the cleaning position is set, the hot water temperature is set by the heat exchanger 53, and the valve unit 5 is set.
2 and the operation of the flow rate adjustment switching unit 55 are performed by the operation unit 1a. In some cases, the flow rate adjustment switching unit 55 is integrated with the valve unit 52.

The nozzle head at the tip of the nozzle body 51 is a hollow body having a plurality of ejection holes formed on the upper surface thereof. The opening diameter of this ejection hole is relatively small so that the force of the ejection water does not become too weak even when the supply amount of the washing water is small. For this reason, when the amount of the washing water is increased, the spouting water hitting the local part becomes considerably stronger, and the user often feels pain.

[0006] In order to prevent such pain, it has been proposed to foam water jetted from a nozzle head as described in, for example, Japanese Patent Application Laid-Open No. 57-180727. This is to mix air bubbles into the cleaning water so that the soft touch cleaning by the bubbles can be realized even when the power of the cleaning water is strong. As a structure for foaming the washing water, a pressure reducing plate having a small hole in the flow path is incorporated, and an external pressure reducing plate is provided downstream of the pressure reducing plate as widely used in a conventional foam faucet or the like. It is to open the air hole that sucks the air from. With such a structure, the internal pressure is reduced due to the acceleration of the flow of water after passing through the holes of the pressure reducing plate, and external air is sucked from the air holes and mixed into the water. It is foamed.

[0007]

By the way, the amount of washing water spouted into the human body is small compared to the amount of water spouted from a faucet of a kitchen or a basin. Therefore,
When the cleaning water is directly heated and ejected to a local part of the human body, it is necessary to instantaneously raise such a small amount of the cleaning water to a desired temperature. In particular, in the case of the cleaning water in which the air is mixed as described above, the amount of the cleaning water is further reduced by the amount of the air, so that a smaller amount of the cleaning water needs to be instantaneously heated to a desired temperature.

In a sanitary washing apparatus, tap water is generally used as washing water. However, the tap water pressure fluctuates for various reasons, and the amount of supplied washing water also fluctuates with this pressure fluctuation. . And this fluctuation | variation of the washing water amount does not necessarily occur gradually, but may change suddenly. For example, if the sanitary washing device and another device having a common tap water supply source (generally a water pipe), such as an electric washing machine, are used simultaneously with the sanitary washing device, the sanitary washing device may be used. The amount of washing water supplied has been sharply reduced. In such a situation, the temperature of the washing water rapidly changes (rapidly rises) with the sudden decrease in the amount of washing water. When air is mixed in, the amount of washing water originally is small, so that the degree of sudden change in temperature becomes large. Such a sudden change in the temperature of the washing water gives a user who receives the ejection of the washing water to a local part of the human body a feeling of strangeness or discomfort, which impairs the feeling of use. Fluctuations in the amount of washing water occur not only due to pressure fluctuations at the supply source, but also due to poor driving of the pump, fluctuations in the power supply voltage, and the like when the washing water is supplied by a water pump.

The problem to be solved in the present invention is to maintain a feeling of use when performing local cleaning with cleaning water that has been forcibly mixed with air and heated.

[0010]

Means for Solving the Problems and Their Functions / Effects To solve at least a part of the above problems, a sanitary washing device of the present invention is a sanitary washing device for jetting washing water to wash a human body part. A forced air mixing means for forcibly mixing air into the inside of the pipe of the washing water to make the washing water a gas-liquid two-phase flow, and an electric heating portion sealed with ceramic having heat conductivity and electrical insulation. A ceramic heater is disposed in the conduit, and heating means for instantaneously directly heating the cleaning water by the ceramic heater is provided.

In the sanitary washing apparatus of the present invention having the above-described structure, air is forcibly mixed into the pipe of the washing water to make the washing water into a gas-liquid two-phase flow, while the washing water is supplied to the ceramic heater of the pipe. To warm the washing water to a desired temperature by instantaneous direct heating. In this ceramic heater, an electric heating portion is sealed with ceramic having heat conductivity and electric insulation. Therefore, since only the heat conductive ceramic is interposed between the electric heating portion and the cleaning water, the heat generated by the electric heating portion is quickly transmitted to the cleaning water via the heat conductive ceramic, and the temperature of the cleaning water is increased. Can be controlled by responsiveness. For this reason, if the ceramic heater is energized and controlled in accordance with the change in the amount of washing water, the washing water at a desired temperature where the washing water temperature is substantially constant regardless of the change in the amount of washing water is supplied to the gas-liquid two-phase flow by air mixing. It can squirt in a state. As a result, it is possible to maintain a suitable feeling of use without giving the user who receives local cleaning with such cleaning water a feeling of discomfort or discomfort. In addition, since the ceramic in contact with the cleaning water has electrical insulation properties, the ceramic heater exhibits high insulation between the electric heating portion and the cleaning water, and does not cause troubles such as electric leakage at the time of arrangement in the pipeline.

When air is forcibly mixed, air is forcibly pumped into an air mixing area formed in a pipe using a porous suction head, and air is supplied to the washing water in the air mixing area. It is preferable to mix and foam. In this case, since foaming is performed by the porous suction head, fine bubbles are mixed into the washing water, and a gas-liquid two-phase flow having a sufficiently high foaming degree is obtained. Then, the washing water in the gas-liquid two-phase flow state can be instantaneously directly heated by the heating means downstream of the air mixing section, and can be ejected from the nozzle means. In this case, the instantaneous direct heating of the washing water is performed in a turbulent state including bubbles in the flow of the washing water. Heat transfer is promoted, and the washing water can be quickly warmed. As a result, the heat exchange efficiency can be improved, so that, in combination with the foaming of high foaming degree by the porous suction head, sufficient foaming of the washing water, water saving and improvement of the energy saving effect are achieved. be able to. In this case, the time for heating the cleaning water to the predetermined temperature can be reduced through the improvement of the heat exchange efficiency, so that the time during which the boiling sound is generated during the heating can be shortened, and the discomfort due to the boiling sound can also be reduced.

When the air is forcibly mixed, the amount of air mixed is adjusted so as to be proportional to the flow rate of the washing water, or the gas-liquid two-phase flow having substantially the same degree of foaming regardless of the flow rate of the washing water. If you adjust the amount of air mixing so that
A soft touch cleaning feeling can be obtained regardless of the flow rate of the cleaning water. If the amount of air mixed into the cleaning water is made larger than the amount of air mixed when only the ejector effect is used, the amount of air mixed with the flow rate of the cleaning water is sufficient, and the cleaning water having a higher foaming degree is obtained. Water saving effect and energy saving effect.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a sanitary washing device according to the present invention will be described based on examples. FIG. 1 is a perspective view schematically showing the internal structure of the sanitary washing device of the present invention.

In the figure, as in the prior art, the toilet body 50
A supply system of washing water to the nozzle device 2 is provided in a casing 1 of the sanitary washing device fixed to the nozzle. In this supply system, a water supply pipe 3 that is directly connected to a building pipe outside the casing 1, a pump 4 that feeds water to the nozzle device 2 side, and a heat exchanger 5 that heats the water are incorporated.

The nozzle device 2 is a cylinder 2 fixed inside the casing 1 and connected to a supply pipe 5a from the heat exchanger 5.
a, and a nozzle body 2b incorporated in the cylinder 2a so as to be movable in the axial direction. A nozzle head 2c is provided at the tip of the nozzle body 2b. Then, as employed in the conventional sanitary washing device, the nozzle body 2
The nozzle b has a structure in which the cleaning water flows into the cylinder 2a by the pressure of the cleaning water, and when the cleaning water reaches the cleaning position, the cleaning water can be ejected from the nozzle head 2c. Further, as the supply of the washing water is stopped and the water pressure is attenuated, the nozzle body 2b returns to the original position in the cylinder 2a by a spring (not shown) for urging the nozzle body 2b to the storage position, The ejection of the washing water is also stopped.

The nozzle body 2b may be driven by a conventionally known actuator such as a motor instead of using the water pressure of the washing water. And, in the nozzle head 2c and the nozzle body 2b,
It is not necessary to provide any air holes for foaming the cleaning water or a throttle for the flow path for increasing the internal flow.

The pump 4 feeds water to the heat exchanger 5 by adjusting the pressure of water from a water supply pipe 3 connected to a drain main pipe of a building or the like to an appropriate pressure. Further, the heat exchanger 5 has a built-in ceramic heater 6 therein, and directly heats and supplies the water to the nozzle device 2. The ceramic heater 6 has a configuration in which an electric heating portion is sealed with ceramic having heat conductivity and electrical insulation, and is disposed inside the heat exchanger 5 forming a part of a pipe of washing water as shown in the figure. Have been. Then, the cleaning water heated from the heat exchanger 5 is supplied to the nozzle device 2 and stopped by turning on and off the operation of the pump 4, and at the same time, the nozzle body 2b advances to the cleaning position and returns to the original storage position after stopping water. Perform the operation.

A connecting pipe 7 is provided between the pump 4 and the heat exchanger 5.
And air is sucked from the outside into the flow path of the connection pipe 7 to foam the water supply. Then, a suction head 8 is incorporated in the middle of the connection pipe 7 for foaming.
The suction head 8 is formed of a porous material that does not leak water to the outside at a pressure of water passing through the inside and allows air from outside to pass when the pressure of the internal flow path is lower than the atmospheric pressure. It is formed in a pipe shape as a material.
As the porous body, for example, ceramic or the like can be used.

FIG. 2 is a schematic diagram showing a flow system of the washing water up to the nozzle device 2, in which a suction head 8 is incorporated in a connecting pipe 7 between the pump 4 and the heat exchanger 5. The suction of the air into the internal flow path by the suction head 8 is performed by the connection pipe 7.
The internal pressure should be reduced based on the increase of the flow rate of the water passing through the inside, or the air should be forced from the outside.

FIG. 3 is a sectional view of a main part showing the suction head 8 and its vicinity in the case of utilizing the ejector effect due to a decrease in internal pressure.

The suction head 8 has a cylindrical shape made of a ceramic material, and a housing 9 is integrally formed outside the suction head 8 to form a chamber 9a having an annular longitudinal section around the suction head 8. The housing 9 has a sleeve 9b projecting outward so as to be inclined to suck air in the flow direction of water. In the illustrated example, the throat is provided so that the flow area of the suction head 8 is smaller than that of the left and right connection pipes 7 in order to increase the flow velocity of the water passing through the suction head 8 and lower the internal pressure. ing.

In the illustrated example, the path of the washing water is in the order of the pump 4, the suction head 8, and the heat exchanger 5.
Instead of using the water discharge pressure of the pump 4, a method may be adopted in which the cleaning water is directly fed by the water supply pressure of the water supply pipe of the building. In this case, instead of the pump 4, the operation unit 1
A valve unit of an electromagnetic valve type operable by a is provided, and an on-off valve, a flow control valve and the like are incorporated in this valve unit. Even with such a water supply direct connection type, the path from the valve unit to the nozzle device 2 is the same as that of the illustrated example, and the cleaning water is bubbled by the suction head 8 at a stage before the jetting as described later. Can be

In the above configuration, when the cleaning switch (not shown) of the operation section 1a is operated, the pump 4 (a valve unit provided in place of the pump 4 in the case of a direct water supply type) is operated.
Is operated, and water is supplied from the connection pipe 7 through the heat exchanger 5 into the cylinder 2a of the nozzle device 2. In this case, since it is necessary to set the temperature of the spouted washing water to a desired temperature, the energization of the ceramic heater 6 is controlled according to the operation state of the pump 4, that is, the amount of washing water sent to the heat exchanger 5, as a matter of course. It is. Then, the nozzle body 2b advances to the cleaning position by the water pressure of the cleaning water entering the cylinder 2a, and thereafter the cleaning water is jetted from the nozzle head 2c.

Since the suction head 8 incorporated in the connection pipe 7 is a throat with respect to the flow of the washing water, the flow velocity of the washing water flowing through this portion increases, and the internal pressure in the flow path decreases. For this reason, air is sucked in from the porous material suction head 8, and this air is mixed with the washing water passing through the inside. Therefore, before entering the heat exchanger 5, the washing water becomes a gas-liquid two-phase flow containing air bubbles, and is heated in the heat exchanger 5 in this state, and the nozzle head 2c remains foamy.
Squirted from.

As described above, when the cleaning water is converted into a gas-liquid two-phase flow before entering the heat exchanger 5, the flow is disturbed by the ceramic heater 6 of the heat exchanger 5 due to boiling heat as containing foam. Be streamed. For this reason, heat transfer is promoted and the time until boiling of the cleaning water is shortened as compared with the case where ordinary cleaning water containing no bubbles is poured as it is. Therefore, not only is the heat exchange efficiency improved, but also the time for heating the cleaning water to a predetermined temperature is shortened, and the time width during which the boiling sound is generated during the heating is also reduced.

The heated washing water that has exited the heat exchanger 5 is supplied to the nozzle device 2 as a gas-liquid two-phase flow, and is jetted from the nozzle head 2c as washing water containing bubbles as it is. For this reason, soft touch cleaning can be performed more comfortably than cleaning water containing no foam. Then, the air for foaming is sucked from the suction head 8, so that if the suction head 8 is appropriately sized, a sufficient amount of air can be secured. For this reason, compared with the case where the foaming mechanism is simply provided in the nozzle head 2c, the amount of air can be remarkably increased, and soft cleaning with a high foaming degree can be performed. That is, since the suction head 8 is the flow path of the cleaning water, a structure for sucking air separately from the flow path is not required. The size of the suction head 8 can be freely changed, and it is easy to obtain a sufficient amount of air with respect to the flow rate of the washing water.

FIGS. 4 and 5 show an embodiment of the present invention, in which air is forcibly blown into the suction head 8 instead of blowing air using the ejector effect as described above. It is like that.

As shown in FIG. 5, a cylindrical suction head 8 made of ceramic material is incorporated with an inner diameter equal to that of the connection pipe 7. The thickness of the suction head 8 is larger than that of the above-described example, and the outside thereof is covered with the housing 10 to form the air passage 10a inside. A compressor 11 is connected to the housing 10, and by operating the compressor 11, external air is supplied to the air passage 10.
blow into a. In the case of the water supply direct connection type as described above, a valve unit may be incorporated instead of the pump 4.

In this configuration, air is forcibly sent from the suction head 8 to the internal flow path by the compressor 11 to make the washing water a gas-liquid two-phase flow, while the washing water is sent to the ceramic heater 6 in the heat exchanger 5. To heat the washing water to a desired temperature by instantaneous direct heating. As described above, the ceramic heater 6 encapsulates the electric heating portion with the ceramic having heat conductivity and electrical insulation, so that only the heat conducting ceramic is interposed between the electric heating portion and the cleaning water. Therefore, the ceramic heater 6 quickly transmits the heat generated by the electric heating portion to the cleaning water via the heat conductive ceramic, and sets the cleaning water temperature to a desired temperature with high responsiveness. The ceramic heater 6 is energized and controlled in accordance with the change in the amount of washing water reaching the heat exchanger 5, so that the washing water having a substantially constant desired washing water temperature is supplied to the suction head 8 regardless of the presence or absence of the change in the amount of washing water. Can be ejected in a gas-liquid two-phase flow state due to air entrainment. As a result, it is possible to maintain a suitable feeling of use without giving the user who receives local cleaning with such cleaning water a feeling of discomfort or discomfort. Moreover, the ceramic heater 6
Since the ceramics in contact with the cleaning water have electrical insulation properties, the ceramics exhibit high insulation properties between the electric heating portion and the cleaning water, and do not cause troubles such as electric leakage at the time of being disposed inside the heat exchanger 5. Further, since the air is forcibly sent from the suction head 8 to the internal flow path by the compressor 11, even when the flow rate of the washing water is low and the internal pressure of the internal flow path does not decrease, the air can be reliably sent. Then, by adjusting the flow rate of the air from the compressor 11 so as to be proportional to the flow rate of the washing water, the void ratio can be set substantially uniformly. For this reason, it can be supplied as gas-liquid two-phase flow cleaning water having substantially the same foaminess regardless of the flow rate of the cleaning water. Therefore, if only the ejector effect is used, if the flow rate is small and the internal flow rate does not increase, the amount of suction air will also decrease and the foaminess will not increase. However, such an obstacle is solved by incorporating the compressor 11. .

Further, since air can be supplied by the compressor 11 without increasing the flow rate of the washing water passing through the suction head 8, the suction head 8 need only be a simple cylindrical shape as shown. Therefore, there is no need to provide a throat or the like, and the processing of the suction head 8 and the incorporation into the connection pipe 7 are simplified. In addition, since the thickness can be increased, the strength of the ceramic material suction head 8 can be sufficiently maintained, which is preferable in terms of durability.

Further, as in the case of using the ejector effect, the washing water is gas-liquid two-phase flow before entering the heat exchanger 5 of the boiling heat transfer type. This turbulences the flow and promotes heat transfer. For this reason, the heat efficiency is improved, and the time until boiling is shortened, so that the boiling noise can be reduced.

The embodiments of the present invention have been described above.
The present invention is not limited to the above-described examples and embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a main part of a sanitary washing device according to the present invention.

FIG. 2 is a schematic diagram of a supply system of cleaning water up to a nozzle device in the sanitary cleaning device.

FIG. 3 is a sectional view of a main part showing an example of a structure for sucking air into a cleaning water flow path by an ejector effect.

FIG. 4 is a schematic diagram showing a cleaning water supply system for forcing air into a cleaning water flow path by a compressor.

FIG. 5 is a schematic sectional view of a suction head portion in the case of supplying air using a compressor in the case of FIG. 4;

FIG. 6 is a perspective view of a conventional example in which a sanitary washing device is installed on a toilet.

FIG. 7 is a schematic diagram showing a supply system up to a nozzle device of cleaning water in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Casing 2 ... Nozzle device 3 ... Water supply piping 4 ... Pump 5 ... Heat exchanger 6 ... Ceramic heater 7 ... Connection pipe 8 ... Suction head 9 ... Housing 10 ... Housing 11 ... Compressor

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[Procedure amendment]

[Submission date] April 5, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

[0007] Meanwhile, the washing water amount of water released to the human private are insignificant. Therefore,
When the cleaning water is directly heated and ejected to a local part of the human body, it is necessary to instantaneously raise such a small amount of the cleaning water to a desired temperature. In particular, in the case of the cleaning water in which the air is mixed as described above, the amount of the cleaning water is further reduced by the amount of the air, so that a smaller amount of the cleaning water needs to be instantaneously heated to a desired temperature.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

In a sanitary washing apparatus, tap water is generally used as washing water. However, the tap water pressure fluctuates for various reasons, and the amount of supplied washing water also fluctuates with this pressure fluctuation. . When aeration is performed, the amount of the original washing water is small, so that the temperature rapidly changes. Such a sudden change in the temperature of the washing water gives a user who receives the ejection of the washing water to a local part of the human body a feeling of strangeness or discomfort, which impairs the feeling of use .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010]

Means for Solving the Problems and Their Functions / Effects To solve at least a part of the above problems, a sanitary washing device of the present invention is a sanitary washing device for jetting washing water to wash a human body part. Forced air supply means for forcibly supplying air to the inside of the washing water pipe, and the forced air supply means
That mixes air into the wash water as a gas-liquid two-phase flow
A gas mixing unit, and place the cell Ramikkuhita to the conduit, and having a heating means for heating the washing water in instantaneous intermolecularly directly.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

[0011] In the sanitary washing apparatus of the present invention having the above-mentioned structure , the forced air supply means controls the air pressure of the washing water.
Air is mixed into the washing water to form a gas- liquid two-phase flow, while the washing water is heated directly to a desired temperature by instantaneously directly heating the washing water with a ceramic heater in the pipeline. Perform This ceramic heater quickly converts heat into wash water.
In other words , the washing water temperature can be controlled with high responsiveness. For this reason, if the ceramic heater is energized and controlled in accordance with the change in the amount of washing water, the washing water at a desired temperature where the washing water temperature is substantially constant regardless of the change in the amount of washing water is supplied to the gas-liquid two-phase flow by air mixing. It can squirt in a state. As a result, it is possible to maintain a suitable feeling of use without giving the user who receives local cleaning with such cleaning water a feeling of discomfort or discomfort .

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

[0013] Then, when forced mixing of air, or to adjust the amount of mixed air in proportion to the flow rate of the washing water, foam degree approximately equal Mr regardless flow rate of washing water
By adjusting the mixing amount of air in Kunar so, it is possible to obtain a washing feeling soft touch despite somewhat washing water flow rate. If the amount of air mixed into the cleaning water is made larger than the amount of air mixed when only the ejector effect is used, the amount of air mixed with the flow rate of the cleaning water is sufficient, and the cleaning water having a higher foaming degree is obtained. Water saving effect and energy saving effect.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0030

[Correction method] Change

[Correction contents]

In this configuration, air is forcibly sent from the suction head 8 to the internal flow path by the compressor 11 to make the washing water a gas-liquid two-phase flow, while the washing water is sent to the ceramic heater 6 in the heat exchanger 5. To heat the washing water to a desired temperature by instantaneous direct heating. The ceramic heater 6 quickly transfers heat to the cleaning water, and sets the temperature of the cleaning water to a desired temperature with high responsiveness. The ceramic heater 6 is energized and controlled in accordance with the change in the amount of washing water reaching the heat exchanger 5, so that the washing water having a substantially constant desired washing water temperature is supplied to the suction head 8 regardless of the presence or absence of the change in the amount of washing water. Can be ejected in a gas-liquid two-phase flow state due to air entrainment. As a result, it is possible to maintain a suitable feeling of use without giving the user who receives local cleaning with such cleaning water a feeling of discomfort or discomfort . Further, since the air is forcibly sent from the suction head 8 to the internal flow path by the compressor 11, even when the flow rate of the washing water is low and the internal pressure of the internal flow path does not decrease, the air can be reliably sent. Then, by adjusting the flow rate of the air from the compressor 11 so as to be proportional to the flow rate of the washing water, the void ratio can be set substantially uniformly. For this reason, it can be supplied as gas-liquid two-phase flow cleaning water having substantially the same foaminess regardless of the flow rate of the cleaning water. Therefore, if only the ejector effect is used, if the flow rate is small and the internal flow rate does not increase, the amount of suction air will also decrease and the foaminess will not increase. . In this embodiment, the compressed air supply means is a compressor.
Air is supplied to the suction head 8
Is forced by the compressor 11 and the internal flow
The washing water of the road was formed in a pipe shape using a porous body as a material.
The suction head 8 turns the washing water into a gas-liquid two-phase flow. Also,
In the present embodiment, the compressor 11 is controlled to
The amount of air entrainment at the ejector effect only as described above
Air volume control so that it is larger than when using
By adjusting the flow rate of air from the compressor 11,
ing. Further, in the present embodiment, as described above,
The flow rate of air from the compressor 11 to be proportional to
Adjusts the void ratio almost uniformly by cleaning.
Regardless of the flow rate of water, the air
Means for adjusting the mixing amount has been embodied.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takuo Imasaka 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Touchi Kiki Co., Ltd. (72) Inventor Shingo Sato 2 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka No.1-1, Totoki Kiki Co., Ltd.

Claims (4)

[Claims] 1. A sanitary washing apparatus for ejecting washing water to wash a local part of a human body, wherein air is forcibly mixed into a pipe line of washing water to make the washing water into a gas-liquid two-phase flow. An air mixing means, and a ceramic heater in which an electric heating portion is sealed by ceramic having heat conductivity and electric insulation, which is disposed in the conduit, and wherein the washing water is directly heated instantaneously by the ceramic heater. A sanitary washing device comprising: 2. The sanitary washing apparatus according to claim 1, wherein said forced air mixing means has means for adjusting the amount of air mixed in proportion to the flow rate of the washing water. 3. The forced air mixing means has means for adjusting the air mixing amount so as to have a gas-liquid two-phase flow having substantially the same foaminess regardless of the flow rate of the washing water. The sanitary washing device as described. 4. The forced air mixing means is configured to generate air-liquid two-phase flow in which the amount of air mixed into the cleaning water is larger than when air is mixed into the cleaning water using only an ejector effect. 2. A means for adjusting a mixing amount of chromium.
A sanitary washing device according to claim 3.