JPH08162268A - Heating apparatus - Google Patents

Abstract

PURPOSE: To provide a heating apparatus which provides necessary functions safely and sanitarily, is composed in a small size, has excellent temperature controllability and is easy to be installed. CONSTITUTION: Voltage is applied between a first electrode (8) and a second electrode (12) to generate glow discharge from a dischargeable gas (17). A cathode is heated by heat generated by conversion of dynamic energy of cations collinding against the cathode due to the glow discharge. An object fluid for heating is heated by the heat through channels (8), (13). The object fluid for heating in both sides of the first electrode (8) and the second electrode (12) is heated and thus highly efficient heat exchanging function can be obtained. As a result, heat current density can be set high, a heating apparatus can be miniaturized, the limitations of the installation, maintenance, control, etc., can thus be lessened, necessary functions can be provided safely and sanitarily, temperature controllability is improved due to the miniaturized size and installation can be done easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating device provided in heating equipment such as a water heater and a hot air blower.

[0002]

2. Description of the Related Art FIG.
FIG. 7 is a cross-sectional view of a conventional heating device shown in Japanese Patent Publication No. In the figure, (1) is a box of heating equipment, (2) is a U-shaped box
(1) The cylindrical body of the heating device provided in the inserted state, (3) is the cylindrical body
The insulating material is disposed inside the (2), and (4) is an electric wire supported by the insulating material (3) and provided inside the cylindrical body (2).

FIG. 11 is a sectional view showing another conventional heating device. In the figure, (1) is a box of a heating device, (5) is an oxygen supply valve provided in the box (1), and (6) is a fuel supply valve of a combustor provided in the box (1). , (7) is a combustion chamber formed in the box (1), and (8) is a combustion chamber provided across the box (1).
It is a heat exchanger composed of a tubular body arranged above (7).

The conventional heating device is constructed as described above,
In FIG. 10, the device uses electric energy, and utilizes the heat generated by the electric resistance of the current flowing through the electric conductor (4). In this case, in order to increase the amount of heat generation per unit area, the density of the electric conductor (4) per unit area is increased by forming the electric conductor (4) into a winding shape. However, if a short circuit occurs, current will not flow in the original circuit, resulting in heat generation failure.
A short circuit is prevented by arranging it in a buried state in (3).

Further, in FIG. 11, in a device using a chemical fuel, fuel and oxygen are mixed in a combustion chamber (7) and burned, and the object to be heated is directly or in a heat exchanger by combustion heat generated at that time. It is heated through (8). The combustion efficiency in this case becomes maximum when the mixing ratio of fuel and oxygen is equal to the ratio of the chemical reaction formula of combustion. Therefore, in many cases, the temperature is controlled by changing the mixing ratio to adjust the combustion intensity.

[0006]

In the conventional heating device as described above, since heat is exchanged through the insulating material in the device using electric energy, the temperature of the heating element becomes higher than the temperature of the heat exchange surface. , The life of the heater, that is, the electric wire is shortened. Further, the volume of the insulating material makes it impossible to increase the heat flow density. Also, due to the heat capacity of the insulating material, the thermal responsiveness when the current is turned on and off is poor.

[0007] Further, a device using a chemical fuel cannot be used unless it is in an environment where oxygen can be supplied because it consumes oxygen. Moreover, since combustion products are generated, it is necessary to remove them. Further, it is difficult to miniaturize the device because it requires a combustion chamber. Further, since the intensity of combustion is adjusted by adjusting the amount of oxygen or fuel sent to the combustion chamber by opening and closing the valve, it is difficult to control and it is difficult to finely adjust the temperature. In particular, when the mixing ratio deviates from the chemical reaction ratio by a certain amount or more, combustion does not occur at all, so that there is a lower limit of the combustion strength. As described above, the conventional heating device has a problem that there are many constraints on heating performance, installation, maintenance, and control.

The present invention has been made in order to solve the above problems, and provides a heating device which can obtain a required function in a safe and hygienic manner, can be constructed in a small size, has good temperature controllability, and can be easily installed. The purpose is to get.

[0009]

In a heating device according to the present invention, a first electrode provided in a flow path of a fluid to be heated and a space provided in the flow path to form a space and face the first electrode. A second electrode whose peripheral portion is insulated and supported by the first electrode by an insulating material and a voltage is applied between the first electrode and the second electrode to generate glow discharge by the discharge gas enclosed in the space. And a control means for controlling.

Further, in the heating device according to the present invention, the first electrode provided in the flow passage of the fluid to be heated and the first electrode provided in the flow passage to form a space are arranged to face the first electrode, A second electrode whose peripheral portion is insulated and supported by the first electrode by an insulating material; and a control means for applying a voltage between the first electrode and the second electrode to generate glow discharge by the discharge gas enclosed in the space. , An auxiliary electrode provided in the space and connected to the control means to control the start of discharge between the first electrode and the second electrode.

Further, in the heating device according to the present invention, the first electrode provided in the flow path of the heat medium and the first electrode provided in the flow path to form a space are arranged to face the first electrode, and the peripheral portion A second electrode that is insulated and supported by the first electrode by an insulating material; a control unit that applies a voltage between the first electrode and the second electrode to generate glow discharge by the discharge gas enclosed in the space; A secondary heat exchanger forming at least one side of the passage is provided.

Further, in the heating apparatus according to the present invention, the first electrode provided in the flow path of the fluid to be heated and the first electrode provided in the flow path to form a space are arranged to face the first electrode, A second electrode whose peripheral portion is insulated and supported by the first electrode by an insulating material; and a control means for applying a voltage between the first electrode and the second electrode to generate glow discharge by the discharge gas enclosed in the space. And a pump provided in the flow path for discharging the fluid to be heated.

Further, in the heating device according to the present invention, the first electrode provided in the flow passage of the fluid to be heated and the first electrode provided in the flow passage to form a space are arranged to face the first electrode, Glow discharge is generated by the discharge gas enclosed in the space by applying a voltage between the second electrode whose peripheral portion is insulated and supported by the first electrode by the translucent insulating material and the first electrode and the second electrode. And a control means for controlling.

Further, in the heating apparatus according to the present invention, the first electrode provided in the flow path of the fluid to be heated and the first electrode provided in the flow path to form a space are arranged to face the first electrode, A second electrode whose peripheral portion is insulated and supported by the first electrode by an insulating material; and a control means for applying a voltage between the first electrode and the second electrode to generate glow discharge by the discharge gas enclosed in the space. , And connection plugs for attaching and detaching the water supply hoses provided at the inlet and the outlet of the flow path, respectively.

Further, in the heating device according to the present invention, the first electrode provided in the flow path of the fluid to be heated and the first electrode provided in the flow path to form a space are arranged to face the first electrode, A second electrode whose peripheral portion is insulated and supported by the first electrode by an insulating material; and a control means for applying a voltage between the first electrode and the second electrode to generate glow discharge by the discharge gas enclosed in the space. And a blower for blowing the flow path.

[0016]

In the heating device constructed as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. Then, the glow discharge converts the kinetic energy of the cations impinging on the cathode into heat to heat the cathode, and the heat heats the fluid to be heated through the flow path.

Further, in the heating device constructed as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. Then, the glow discharge converts the kinetic energy of the cations impinging on the cathode into heat to heat the cathode, and the heat heats the fluid to be heated through the flow path. Furthermore, at the beginning of the voltage application cycle, the start of discharge is appropriately adjusted by not applying a voltage to the auxiliary electrode.

Further, in the heating device constructed as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. The glow discharge converts the kinetic energy of the cations impinging on the cathode into heat and heats the cathode, and this heat heats the secondary heat exchanger through the heat medium.

Further, in the heating device constructed as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge due to the discharge gas is generated. Then, the glow discharge converts the kinetic energy of the cations impinging on the cathode into heat to heat the cathode, and the heat heats the fluid to be heated through the flow path. Then, the heated fluid heated by the pump is discharged.

Further, in the heating device constructed as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge due to the discharge gas is generated. Then, the glow discharge converts the kinetic energy of the cations impinging on the cathode into heat to heat the cathode, and the heat heats the fluid to be heated through the flow path. Further, since it is a translucent insulating material, the fluid to be heated is irradiated with ultraviolet rays generated during glow discharge.

Further, in the heating device constructed as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. Then, the glow discharge converts the kinetic energy of the cations impinging on the cathode into heat to heat the cathode, and the heat heats the fluid to be heated through the flow path. In addition, the water supply hose is attached and detached at the inlet and the outlet of the flow path by the coupling plug.

Further, in the heating device constructed as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. Then, the glow discharge converts the kinetic energy of the cations impinging on the cathode into heat to heat the cathode, and the heat heats the fluid to be heated through the flow path. In addition, the blower blows air to the flow path.

[0023]

【Example】

Example 1. FIG. 1 is a sectional view showing one embodiment of the present invention. In the figure, (8) is a first electrode made of a cylindrical body in which a first flow passage (9) for a fluid to be heated (not shown) is formed, (10) is an inlet of the first flow passage (9), and (11) ) Is an outlet of the first flow path (9). (12) is a cylindrical body and forms a space to form the first electrode (8)
A second flow path (13) for a fluid to be heated (not shown) is formed along the outer periphery by a second electrode that is arranged so as to surround the both ends of the first electrode (8) by an insulating material (14). Insulated and supported.

(15) is the inlet of the second flow path (13), and (16) is the second
The outlet of the flow path (13), (17) is the first electrode (8) and the second electrode (1
It is a discharge gas filled in the space (18) between the two. (19) is connected to both the first electrode (8) and the second electrode (12), and a voltage is applied to both of them to generate glow discharge by the discharge gas (17) enclosed in the space (18). A control device (20), a stabilizing resistor (21), an AC power source (22) and a switch.
(23) is provided. Reference numeral (24) is an auxiliary electrode arranged in the space (18) in an inserted state and connected to the control device (20) to facilitate the initiation of discharge.

In the heating device constructed as described above, when the switch (23) is closed, the AC power source (22) is connected to the first electrode (8) and the second electrode (12) via the control device (20). ) Is applied. As a result, a glow discharge due to the discharge gas (17) is generated, and the glow discharge causes the first electrode (8) and the second electrode (1).
Electron collision occurs in both 2). That is, the kinetic energy of the cations impinging on the cathode is converted into heat to heat the cathode, and this heat heats the fluid to be heated through the first channel (9) and the second channel (13). .

That is, the fluid to be heated, such as water, that has flowed in from the inlet (10) of the first flow path (9) exchanges heat with the first electrode (8) and the outlet of the first flow path (9) ( It leaks out from 11). Also,
The heated fluid such as hot water that has flowed in from the inlet (15) of the second flow path (13) exchanges heat with the second electrode (12), and the outlet (1) of the second flow path (13)
6) Outflow from the outside. The first electrode in this heat exchange
Since the fluid to be heated is arranged on both sides of (8) and the second electrode (12), there is no escape route for heat other than heat exchange with the fluid to be heated, and a heating device having extremely high thermal efficiency can be obtained.

Further, in the glow discharge tube, the heat flow density can be set high, a high heat exchange rate can be obtained, and the heating device can be downsized. Furthermore, at the beginning of the cycle of applying the AC voltage, the voltage can be not applied to the auxiliary electrode (24) so that the start of the discharge can be adjusted appropriately, so that the control can be facilitated. In this way, the restrictions on the heating performance, installation, maintenance, and control of the heating device can be reduced, the required functions can be obtained safely and hygienically, the size can be reduced, and the temperature controllability can be improved easily. A heating device that can be installed can be obtained.

Embodiment 2 FIG. 2 and 3 are views showing another embodiment of the present invention. FIG. 2 is a sectional view of a heating device including a water storage type water heater, and FIG. 3 is a sectional view taken along line III-III of FIG.
In the figure, (25) is the body of the water storage water heater, (26) is the body (2
In the flow path formed by the cylindrical body provided in 5), an inflow port (10) is formed on the lower side and an outflow port (11) consisting of a spout is formed on the upper side.

(8) is a first channel provided on one side of the flow channel (26)
The electrode (12) is provided on the other side of the flow path (26) and is the first electrode
A second electrode arranged so that a space (18) is formed with respect to (8), and both ends are insulated and supported by the first electrode (8) by an insulating material (14) made of a material that transmits ultraviolet rays such as glass. Has been done.
Reference numeral (17) is a discharge gas filled in the space (18) between the first electrode (8) and the second electrode (12).

The reference numeral (19) is connected to both the first electrode (8) and the second electrode (12), a voltage is applied to both of them, and a glow is generated by the discharge gas (17) enclosed in the space (18). As a control means for generating a discharge, a control device (20), an AC power supply (22) and a switch (23) are provided. Reference numeral (24) is an auxiliary electrode arranged in the space (18) in an inserted state and connected to the control device (20) to facilitate the initiation of discharge. Reference numeral (27) is a pump which is provided on the inlet (10) side of the flow path (26) and is connected to the control device (20).

In the heating device constructed as described above, when the switch (23) is closed, the AC power source (22) causes the first electrode (8) and the second electrode (12) via the control device (20). ) Is applied. As a result, a glow discharge due to the discharge gas (17) is generated, and the glow discharge causes the first electrode (8) and the second electrode (1).
Electron collision occurs in both 2). That is, the kinetic energy of cations impinging on the cathode is converted into heat to heat the cathode, and this heat heats the fluid to be heated by the flow path (26).

Further, by closing the switch (23), the pump (2
7) operates and the water in the skeleton (25) is pumped to the flow path (26).
As a result, the water in the skeleton (25) is heated and flows out from the outflow port (11). Thus, the first electrode (8) and the second electrode (12)
The fluid to be heated is placed on each side of the and heated.
Therefore, although detailed description is omitted, it is apparent that the same effects as those of the embodiment of FIG. 1 can be obtained in the embodiments of FIGS.

Also, by closing the switch (23), water can be turned into hot water when necessary, so that a water heater can be obtained which can save energy as compared with a heat-retaining pot or the like. Furthermore, the control device (20) is loaded with a function of controlling the number of discharges per hour, and the temperature adjusting means is provided, so that hot water having a required temperature can be supplied when necessary.

2 and 3, since the part of the insulating material (14) which is in contact with water is made of glass, ultraviolet rays generated during glow discharge pass through the insulating material (14). By irradiating the heated fluid to be heated, the heated fluid, that is, water can be sterilized simultaneously with heat exchange.

Example 3. FIG. 4 is also a sectional view showing another embodiment of the present invention. In the drawings, the same reference numerals as those in FIGS. 1 to 3 indicate corresponding parts, and (26) is a flow path constituted by an iron plate, that is, a secondary heat exchanger (28) on the upper surface, and a heat medium (29) made of oil or the like. ) Is filled.

In the heating device having the above-mentioned structure, that is, the iron plate grill, when the switch (23) is closed, the AC power source (22) is connected to the first electrode (8) and the control device (20). It is applied to the second electrode (12). This allows the dischargeable gas (17)
Glow discharge occurs, and the glow discharge causes the first electrode
Electron collision occurs on both (8) and the second electrode (12). That is, the kinetic energy of cations impinging on the cathode is converted into heat to heat the cathode, and this heat heats the heat medium (29) through the flow path (26).

Further, by closing the switch (23), the pump (2
7) operates, and the heat medium (29) in the flow path (26) becomes the secondary heat exchanger (2
It is returned to every corner of 8). In this way, the heating mediums (29) are arranged on both sides of the first electrode (8) and the second electrode (12) to be heated. Therefore, although detailed description is omitted, FIG.
It is obvious that the same effect as in the embodiment of FIG.

In the embodiment of FIG. 4, the heating medium (29)
And a secondary heat exchanger (28), that is, an indirect heating method using an iron plate. By using an electrically insulating substance such as oil as the heat medium (29), it is possible to prevent the occurrence of electric shock accidents without taking special protective measures.

Embodiment 4 FIG. 5 and 6 are also views showing another embodiment of the present invention. FIG. 5 is a sectional view of the heating device, and FIG. 6 is a sectional view taken along line VI-VI of FIG. In the drawings, FIGS.
The same reference numerals denote corresponding parts, (30) is a plurality of fins standing upright from the first electrode (8) and the second electrode (12), and (31) is a fin.
The blower is provided so as to face the end surface of (30).

In the heating device constructed as described above, that is, in the hot air blower, when the switch (23) is closed, the AC power supply (22) is connected to the first electrode (8) and the control device (20). It is applied to the second electrode (12). This causes a glow discharge due to the discharge gas (17), and the glow discharge causes the first electrode (8)
Electron collision occurs on both the second electrode 12 and the second electrode 12. That is, the kinetic energy of positive ions that collide with the cathode is converted into heat, and the cathode is heated. Then, this heat heats the air blown by the operation of the air blower (31) urged by the closing of the switch (23) via the fins (30).

Thus, the first electrode (8) and the second electrode (12)
The fins (30) are arranged on both sides of each and are heated.
Therefore, although detailed description is omitted, it is apparent that the same effects as those of the embodiment of FIG. 1 can be obtained in the embodiments of FIGS. 5 and 6.

Further, the constitution of the embodiment of FIGS. 5 and 6 can be easily applied to the dryer, and the same operation as that of the embodiment of FIGS. 5 and 6 can be obtained. In such a dryer, a part of the insulating material (14) is made of glass, and ultraviolet rays generated at the time of glow discharge are passed therethrough,
A bactericidal action can be obtained.

Example 5. FIG. 7 is also a sectional view showing another embodiment of the present invention. In the figure, the same reference numerals as those in FIGS. 1 to 3 indicate corresponding parts, and (30) is a set of first electrodes (8), respectively.
And a plurality of fins formed by the second electrode (12). Although not shown, a blower is arranged so as to face the end surface of the fin (30).

In the heating device having the above-mentioned structure, that is, the warm air blower, when the switch (23) is closed, the AC power source (22) is connected to the first electrode (8) and the control device (20). It is applied to the second electrode (12). This causes a glow discharge due to the discharge gas (17), and the glow discharge causes the first electrode (8)
Electron collision occurs on both the second electrode 12 and the second electrode 12. That is, the kinetic energy of positive ions that collide with the cathode is converted into heat, and the cathode is heated. Then, this heat heats the air blown by the operation of the air blower (31) urged by the closing of the switch (23) via the fins (30).

As described above, the fin 30 is constituted by the first electrode 8 and the second electrode 12, and the air is heated. Therefore, although detailed description is omitted, it is obvious that the embodiment of FIG. 7 can obtain the same operation as that of the embodiments of FIGS.

Example 6. FIG. 8 is also a sectional view showing another embodiment of the present invention. In the figure, the same reference numerals as in FIG. 1 indicate the corresponding parts, and (32) is arranged at the inflow port (10) and the outflow port (16) respectively to connect the water supply hose to the inflow port (10) or the outflow port (1).
It is a connecting plug that can be easily and detachably connected to 6).

In the heating device thus constructed, that is, in the water heater, when the switch (23) is closed, the AC power source (22) is connected to the first electrode (8) and the first electrode (8) via the control device (20). It is applied to two electrodes (12). This causes a glow discharge due to the discharge gas (17), and the glow discharge causes the first electrode (8)
Electron collision occurs on both the second electrode 12 and the second electrode 12. That is, the kinetic energy of cations impinging on the cathode is converted into heat to heat the cathode, and this heat causes the fluid to be heated, that is, water, to pass through the first channel (9) and the second channel (13). Be heated.

Thus, the first electrode (8) and the second electrode (12)
The fluid to be heated is placed on each side of the and heated.
Therefore, although detailed description is omitted, it is apparent that the same operation as that of the embodiment of FIG. 1 can be obtained in the embodiment of FIG. In addition, the following operation can be obtained in the embodiment shown in FIG. That is, the heating device by glow discharge has high thermal efficiency, is easily reduced in size and weight, and has a coupling plug (32) for connecting the water supply hose to the inlet (10) or the outlet (16).
By providing the heating device, it is possible to realize a heating device that can supply hot water anywhere that power can be supplied and water can be supplied by a hose.

Example 7. FIG. 9 is also a sectional view showing another embodiment of the present invention. In the figure, the same reference numerals as those in FIGS. 1 to 3 indicate corresponding parts, (25) is a frame of a tableware dryer, (31) is a blower provided in the frame (25), and (33) is a frame (25). A glass insulation material provided inside the space (1) for the first electrode (8).
8) is formed to insulate and support the second electrode (12).

In the heating device having the above-mentioned structure, that is, the tableware dryer, when the switch (23) is closed, the AC power source (22) is connected to the first electrode (8) and the control device (20). It is applied to the second electrode (12). This allows the dischargeable gas (17)
Glow discharge occurs, and the glow discharge causes the first electrode
Electron collision occurs on both (8) and the second electrode (12). That is, the kinetic energy of cations impinging on the cathode is converted into heat, which heats the cathode, and this heat evaporates the water in the dishes (not shown) in the skeleton (25) by the circulating air flow caused by the operation of the blower (31). Let

Thus, the first electrode (8) and the second electrode (12)
This heats the air in the skeleton (25), and the water content of the dishes evaporates through the circulating air flow. Therefore, although detailed description is omitted, it is apparent that the same operation as that of the embodiment of FIG. 1 can be obtained in the embodiment of FIG. In addition, since ultraviolet rays generated at the time of glow discharge are transmitted from the glass insulating material (33) to irradiate the tableware, a sterilizing action can be obtained.

[0052]

As described above, according to the present invention, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. The glow discharge converts the kinetic energy of cations impinging on the cathode into heat and heats the cathode, and the heat heats the fluid to be heated through the flow path.

In such heat exchange, the first electrode and the second electrode
Since the fluid to be heated is arranged on both sides of the electrode, there is no escape route for heat except for heat exchange with the fluid to be heated, and a heating device having high thermal efficiency can be obtained. In the glow discharge tube,
The heat flow density can be set high, and the heating device that can obtain a high heat exchange rate can be downsized. Therefore, the restrictions on the heating performance, installation, maintenance, and control of the heating device can be reduced, the required functions can be obtained safely and hygienically, the size can be reduced, the temperature controllability can be improved, and the installation is easy. Has the effect of

Further, in the present invention, as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge due to the discharge gas is generated. The glow discharge converts the kinetic energy of cations impinging on the cathode into heat and heats the cathode, and the heat heats the fluid to be heated through the flow path. Further, at the beginning of the voltage application cycle, the voltage is not applied to the auxiliary electrode to appropriately adjust the start of discharge.

In such heat exchange, the first electrode and the second electrode
Since the fluid to be heated is arranged on both sides of the electrode, there is no escape route for heat except for heat exchange with the fluid to be heated, and a heating device having high thermal efficiency can be obtained. In the glow discharge tube,
The heat flow density can be set high, and the heating device that can obtain a high heat exchange rate can be downsized. Therefore, the restrictions on the heating performance, installation, maintenance, and control of the heating device can be reduced, the required functions can be obtained safely and hygienically, the size can be reduced, the temperature controllability can be improved, and the installation is easy. Has the effect of Further, there is an effect that the control is facilitated by adjusting the discharge start by the auxiliary electrode.

Further, in the present invention, as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. The glow discharge converts the kinetic energy of cations impinging on the cathode into heat and heats the cathode, and this heat heats the secondary heat exchanger via the heat medium.

In such heat exchange, the first electrode and the second electrode
Since the heat medium is arranged on both sides of the electrode, there is no escape route for heat except for heat exchange with the fluid to be heated, and a heating device having high thermal efficiency can be obtained. Further, in the glow discharge tube, the heat flow density can be set high, and the heating device that can obtain a high heat exchange rate can be downsized.

Therefore, the heating performance of the heating device, installation,
The effect is that restrictions on maintenance and control can be reduced, the required functions can be obtained safely and hygienically, the size can be reduced, the temperature controllability can be improved, and the installation can be facilitated. Further, since the secondary heat exchanger is heated by the heat medium, the use of an electrically insulating substance such as oil as the heat medium prevents the occurrence of electric shock accidents without taking special protective measures. effective.

Further, in the present invention, as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge is generated by the discharge gas. The glow discharge converts the kinetic energy of cations impinging on the cathode into heat and heats the cathode, and the heat heats the fluid to be heated through the flow path. Then, the heated fluid to be heated is discharged by the pump.

In such heat exchange, the first electrode and the second electrode
Since the fluid to be heated is arranged on both sides of the electrode, there is no escape route for heat except for heat exchange with the fluid to be heated, and a heating device having high thermal efficiency can be obtained. In the glow discharge tube,
The heat flow density can be set high, and the heating device that can obtain a high heat exchange rate can be downsized.

Therefore, restrictions on the heating performance, installation, maintenance, and control of the heating device can be reduced, the required functions can be obtained safely and hygienically, the size can be reduced, and the temperature controllability can be improved. It has the effect of facilitating installation.
In addition, when the water is needed, the water can be turned into hot water to be supplied by the operation of the pump, which has the effect of saving energy.

Further, in the present invention, as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge due to the discharge gas is generated. The glow discharge converts the kinetic energy of cations impinging on the cathode into heat and heats the cathode, and the heat heats the fluid to be heated through the flow path. Further, since it is a translucent insulating material, the fluid to be heated irradiates the outside with ultraviolet rays generated during glow discharge.

In such heat exchange, the first electrode and the second electrode
Since the fluid to be heated is arranged on both sides of the electrode, there is no escape route for heat except for heat exchange with the fluid to be heated, and a heating device having high thermal efficiency can be obtained. In the glow discharge tube,
The heat flow density can be set high, and the heating device that can obtain a high heat exchange rate can be downsized.

Therefore, restrictions on the heating performance, installation, maintenance, and control of the heating device can be reduced, the required functions can be obtained safely and hygienically, the size can be reduced, and the temperature controllability can be improved. It has the effect of facilitating installation.
Further, since ultraviolet rays generated during glow discharge irradiate the fluid to be heated to the outside, there is an effect of sterilizing the fluid to be heated at the same time as heat exchange.

Further, in the present invention, as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge due to the discharge gas is generated. The glow discharge converts the kinetic energy of cations impinging on the cathode into heat and heats the cathode, and the heat heats the fluid to be heated through the flow path. Further, the water supply hose can be attached / detached at the inlet and the outlet of the flow path by the coupling plugs.

In such heat exchange, the first electrode and the second electrode
Since the fluid to be heated is arranged on both sides of the electrode, there is no escape route for heat except for heat exchange with the fluid to be heated, and a heating device having high thermal efficiency can be obtained. In the glow discharge tube,
The heat flow density can be set high, and the heating device that can obtain a high heat exchange rate can be downsized.

Therefore, it is possible to reduce restrictions on the heating performance, installation, maintenance, and control of the heating device, to obtain the required functions in a safe and hygienic manner, to reduce the size, and to improve the temperature controllability. It has the effect of facilitating installation.
In addition, the heating device by glow discharge has high thermal efficiency, can be easily reduced in size and weight, and by connecting the water supply hose to the inlet or outlet with a coupling plug, power can be supplied and water can be supplied by the hose. The effect is to realize a heating device that can supply hot water anywhere in the place.

Further, in the present invention, as described above, when a voltage is applied between the first electrode and the second electrode, glow discharge due to the discharge gas is generated. The glow discharge converts the kinetic energy of cations impinging on the cathode into heat and heats the cathode, and the heat heats the fluid to be heated through the flow path. In addition, the blower blows air to the flow path.

In such heat exchange, the first electrode and the second electrode
Since the fluid to be heated is arranged on both sides of the electrode, there is no escape route for heat except for heat exchange with the fluid to be heated, and a heating device having high thermal efficiency can be obtained. Further, in the glow discharge tube, the heat flow density can be set to be high, and the heating device for blowing air that can obtain a high heat exchange rate can be downsized. Therefore, the restrictions on the heating performance, installation, maintenance, and control of the heating device can be reduced, the required functions can be obtained safely and hygienically, the size can be reduced, the temperature controllability can be improved, and the installation is easy. Has the effect of

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing Embodiment 2 of the present invention.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view showing a third embodiment of the present invention.

FIG. 5 is a sectional view showing a fourth embodiment of the present invention.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a sectional view showing a fifth embodiment of the present invention.

FIG. 8 is a sectional view showing a sixth embodiment of the present invention.

FIG. 9 is a sectional view showing a seventh embodiment of the present invention.

FIG. 10 is a cross-sectional view of a conventional heating device.

FIG. 11 is a cross-sectional view showing another conventional heating device.

[Explanation of symbols]

8 1st electrode, 9 1st flow path, 10 2 inflow port, 12 2nd electrode, 13 2nd flow path, 14 insulating material, 16 outflow port, 17 discharge gas, 18 space.

Claims (7)

[Claims] 1. A first electrode provided in a flow path of a fluid to be heated, and a first electrode provided in the flow path to form a space and opposed to the first electrode. A peripheral portion of the first electrode is made of an insulating material. A second electrode insulated and supported by the first electrode, the first electrode and the second electrode
A heating device comprising: a control unit that applies a voltage between electrodes to generate glow discharge by the discharge gas sealed in the space. 2. A first electrode provided in a flow path of a fluid to be heated, and a first electrode provided in the flow path to form a space and opposed to the first electrode. A second electrode insulated and supported by the first electrode, the first electrode and the second electrode
Control means for applying a voltage between the electrodes to generate glow discharge by the discharge gas enclosed in the space, and discharge between the first electrode and the second electrode, which is provided in the space and connected to the control means. A heating device with an auxiliary electrode for controlling the start. 3. A first electrode provided in the flow path of the heat medium,
A second electrode provided in the flow path to form a space, facing the first electrode and having a peripheral edge insulated and supported by the first electrode by an insulating material; and the first electrode and the second electrode. A heating device comprising: a control unit that applies a voltage between them to generate glow discharge by the discharge gas enclosed in the space; and a secondary heat exchanger that forms at least one side of the flow path. 4. A first electrode provided in a flow path of a fluid to be heated, and a first electrode provided in the flow path to form a space and facing the first electrode. A second electrode insulated and supported by the first electrode, the first electrode and the second electrode
A heating device comprising: a control unit that applies a voltage between electrodes to generate glow discharge by the discharge gas sealed in the space; and a pump that is provided in the flow path and discharges the heated fluid. 5. A first electrode provided in a flow path of a fluid to be heated, and a first electrode provided in the flow path to form a space and opposed to the first electrode, and made of a translucent insulating material. A second electrode whose peripheral portion is insulated and supported by the first electrode; and a control means for applying a voltage between the first electrode and the second electrode to generate a glow discharge by the discharge gas enclosed in the space. Heating device. 6. A first electrode provided in a flow path of a fluid to be heated and a first electrode provided in the flow path to form a space and arranged to face the first electrode. A peripheral portion of the first electrode is made of an insulating material. A second electrode insulated and supported by the first electrode, the first electrode and the second electrode
Control means for applying a voltage between the electrodes to generate glow discharge by the discharge gas sealed in the space, and coupling plugs for detaching and attaching a water supply hose provided at the inlet and outlet of the flow passage, respectively. Heating device. 7. A first electrode provided in a flow path of a fluid to be heated and a first electrode provided in the flow path to form a space and to face the first electrode. A second electrode insulated and supported by the first electrode, the first electrode and the second electrode
A heating device comprising: a control unit that applies a voltage between electrodes to generate glow discharge by the discharge gas sealed in the space; and a blower that blows air to the flow path.