JPS6012977Y2 - Humidifying device for hot air heater - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a humidifying device for a warm air heater, and more particularly, to a device for humidifying a room by generating steam using an evaporator disposed in the heating section of the hot air heater.

In this type of hot air heater, an evaporator is installed in the heat exchanger,
This device that evaporates and humidifies the water in the evaporator transfers the convection heat of the exhaust gas passing through the heat exchanger to the water by heat conduction, vaporizing the water, so there are fewer components and less trouble. Although it is easy to manage, it is difficult to obtain an appropriate amount of humidification because the amount of humidification is likely to be too much or too little. Averaging was difficult.

The present invention was developed in view of the above drawbacks.

An exhaust gas introduction cylinder is integrated at the connection between the combustion chamber and the heat exchanger, facing the heating part of the evaporator and regulating the amount of exhaust gas that introduces the heat exchanger and comes into contact with the heating part. The heating section of the evaporator is heated intensively, and humidification is carried out quickly. To provide a humidifying device for a warm air heater, which is capable of providing a suitable level of humidification.

Next, the structure of an embodiment of the present invention will be explained with reference to the drawings.

1 is a hot air heater, which is covered with a main body case body 2.

An intake chamber 4 communicating with an intake port 3 opened in this kemasu body 2
is formed in the case body 2, and the intake chamber 4 includes an electric motor 5 and an air supply fan 6 rotated by the electric motor 5.
is arranged.

. This intake chamber 4. is communicated with a burner chamber 8 by an air intake passage 7.

A burner 29 is disposed in the burner chamber 8, and a vent hole 10 for supplying combustion air from the burner chamber 8 is formed in the burner 9.

Fuel such as petroleum supplied to the burner 9 is vaporized by ignition, mixed with combustion air supplied from the vent 10, and burned.

Further, inside the case body 2, there is a fuel receiver 1.1 for petroleum or the like, a fuel amount regulator 13 connected to the fuel receiver 11 via a conduit 12, and a fuel amount regulator 13 that is removably mounted on the fuel receiver 11. A cartridge type fuel tank 14 is provided.

An opening/closing valve 16 is provided in the drip opening 15 formed on the lower surface of the fuel tank 4.1. This on-off valve 16 is biased in the closing direction by a spring (not shown), and is pressed open by an operating pin 17 provided on the fuel receiver 11. .

The operating pin 17 is provided protruding from the inner bottom of a filter 18 into which the drip opening 15 of the fuel tank 14 is fitted, and the filter 18 is formed with a fuel filtration hole (not shown).

When the fuel tank 14 is installed in the fuel receiver 11, the operating pin 17 presses the on-off valve 16 to open it, the fuel is replaced with air and drips into the fuel receiver 11, and the on-off valve 16 opens in the fuel receiver 11. When the fuel accumulates up to the position of the dripping port 15, the fuel in the fuel tank 14 is not replaced with air, and the fuel is not dripped, but the fuel is always dripped into the fuel tray 11 up to a constant liquid level. When the fuel level in the fuel tray 11 drops, the fuel is dripped again.

Further, the fuel amount regulator 13 is communicated with the burner 9 via a conduit 12 located at the lower part thereof.

Note that the burner 9 is provided with an ignition mechanism 19.

Further, a combustion chamber 20 is formed in the upper part of the burner 9,
A baffle plate 21 is provided at the upper part of the inside of the combustion chamber 20 to enhance the combustion effect.

Furthermore, a heat exchanger 22 is formed in communication with the upper part of the combustion chamber 20.

This heat exchanger 22 is crimped together with an exhaust gas introduction cylinder 24 to a cylindrical connecting pipe portion 23 formed at the upper end of the combustion chamber 20 .

Further, a heat shield plate 25 is provided on the heat exchanger 22 so as to be movable back and forth above the upper opening of the exhaust gas introduction cylinder 24, and both side edges of the heat shield plate 250 are held by guide rails 26. A backing 27 is interposed on the protrusion of the heat shield plate 25 from the heat exchanger 22, and the heat shield plate 25 is kept airtight.

Further, one end of the heat shield plate 25 projects outward from the case body 2, and is provided with a knob 28.

Further, the heat exchanger 22 has a plurality of heat exchange parts 29, 30, each of which is formed into a flat box by a lower case-like member 31, 32 and an upper case-like member 33, 34. upper case-like members 33., respectively.
34 and lower case-like members 31 and 32 are joined together by caulking their peripheral edges, respectively.

The connecting tube part 23 is crimped and connected to one end of the lower case-like member 31 of one heat exchanger 29, and the upper case-like member 34 of the other heat exchanger 30 is crimped and connected to the other end. There is.

Further, an exhaust pipe 35 is connected to the lower case-like member 32 of the other heat exchange section 30, and an exhaust chamber 36 is communicated with the exhaust pipe 35.

This exhaust chamber 36 has an exhaust port 37 formed in the case body 2.
is communicated with.

Further, an exhaust fan 38 rotated by the electric motor 5 is disposed in the exhaust chamber 36.

Next, the humidifier will be explained.

The evaporator 39 is composed of an evaporating dish 40 and an evaporating dish cover 41, and a flange 42 formed at the upper opening of the evaporating dish 40 and a flange 43 formed at the lower edge of the evaporating dish cover 41 are joined together. Tightly connected.

A heat conductive plate 44 formed of a material with high thermal conductivity and serving as a heating part that makes surface contact with the lower surface of the evaporating dish 40 has a peripheral edge 4
A backing 46 made of asbestos or the like is provided in the fitting hole 47 of the upper case-like member 33, which is located above the heat exchange section 29 and the connecting pipe section 23 and faces the opening surface of the exhaust gas introduction cylinder 24.
It is fitted and locked through.

The amount of contact between the introduced exhaust gas and the heat conductive plate 44 with respect to the heat exchanger 22 is regulated by the distance between the upper surface opening of the exhaust gas introduction cylinder 24 and the heat conductive plate 44.

A flange 42 of the evaporating dish 40 and a flange 43 of the evaporating dish cover 41 are removably connected to the heat conductive plate 44 by means of screw rods (not shown).

In addition, a water conduit 4 is connected to an opening in the side wall of the evaporating dish 40.
One end of 8 is removably connected in a fluid-tight manner by an appropriate means.

This water guide pipe 48 is led out to the outside of the back side of the case body 2, and is detachably connected to the lower part of a water tray 49 attached to the case body 2.

An operating pin 50 is protruded from the center of the bottom of the water tray 49, and a cartridge-type water tank 51 is removably fitted into the opening on the top surface.

A water inlet 53 is projected from the lower surface of the water tank 51 and is opened and closed by an on-off valve 52. The on-off valve 52 is biased downward by a spring (not shown) to maintain a closed state.

When the lower part of the water tank 51 is fitted into the water tray 49, the operating pin 50 presses and opens the on-off valve 52 against the spring, and the water in the water tank 51 is replaced with air and drips into the water tray 49. When the water surface of the water pan 49 reaches the position of the water inlet 53: the air is not replaced and the water in the water tank 51 stops dripping, and the water surface of the evaporation pan 40 becomes flush with the water surface of the water pan 49. maintained.

A ventilation duct 54 is connected to the side wall of the evaporation dish cover 41 of the evaporation dish 39, and the tip of the ventilation duct 54 is connected to a convection fan 7 disposed on the back side of the case body 2.
'55.

The convection fan 55 is rotated by an electric motor 56 and faces an intake port (not shown) formed on the back surface of the case body 2.

(-L) The air generated by the lever fan 55 exchanges heat with the heat exchanger 22, becomes warm air, and is blown out from the hot air outlet 57 on the front surface of the case body 2.

Further, the air generated by the fan 55 is supplied into the evaporator 39 through the air duct 54.

In addition, a backing 58 is interposed at the connection part with the evaporating dish cover 41, and this backing 5
8 has a protrusion 60 located at the upper part of the opening 59 of the air duct 54 and protrudes downward, and also has a protrusion 61 located at the lower part and protrudes upward.

Further, a highly elastic backing 63 made of rubber or the like is locked to a locking flange 62 formed at the opening edge of the evaporating dish cover 41 of the evaporator 39.

Next, 64 is a steam duct, which is formed into a flat rectangular box shape by a duct board 65 and a similar-shaped duct cover plate 56 that is smaller than this duct board 65, and has a locking edge formed on the periphery of this duct board 65. A highly elastic backing 67 made of rubber or the like is fitted and locked, and a duct cover plate 66 is removably placed on the duct board 65 via this backing 67, and is removably coupled by means not shown. It looks like this.

On one end side of this duct board 65 is the evaporating dish cover 41.
A recess 6B is formed to fit into the upper surface opening number of 1. =
'cy>1$ In the part 68, a slender steam passage hole is formed by burring, and 0 is a plurality of holes, and the duct cup is
The plate 6 is drawn so that a blow-out opening 70 is formed at a position i- from the concave portion 68 of the board 65, and a detour steam path 71 is formed within the steam chamber 164. I can see it now.

□, :□ Also, 72 is the upper opening 7 of the case body 2.
3, which can be opened and closed with a shaft 74, and this lid plate 72 has an opening 15 formed therein corresponding to the outlet opening 70 of the steam duct 64, The steam duct 64 is removably connected to the periphery via a backing 67 by appropriate means.

The upper opening 73 of the case body 2 is connected to the evaporator 3.
9. The heat conductive plate 44 and the steam duct 64 can be inserted and removed.

Also, when the cover plate 72 is closed, the recess 68 of the steam duct 64 attached to the inner surface of the cover plate 72. is fitted into the opening of the evaporating dish cover 41, and the periphery of the recess 68 is pressed against the backing 63.

Next, reference numeral 77 denotes a blowout eye body, which is formed in a cylindrical shape, and has a blowout lower 8 opened at its upper surface that slopes upward toward the rear.
is provided.

The mounting frame 80G1 of this blowout eye body 77. It is fitted through the opening of the lid plate 12 and detachably attached to the periphery of the steam duct) 6Q) blow-out opening lower 0.

The air outlet eye body 77 is fitted and held in the mounting frame 80 so as to be rotatable in the horizontal direction, with the air outlet lower 8 being regulated so as not to face toward the back.

Next, the operation of this embodiment will be explained.

Fuel, which has been replaced with air from the fuel tank 14 and is supplied to the fuel receiver 11 while maintaining a predetermined liquid level, is supplied to the burner 9 via the fuel amount regulator 13.

On the other hand, air sucked from the intake port 3 by the air supply fan 6 rotated by the electric motor 5 is supplied to the burner 9, and the fuel supplied to the burner 9 is vaporized by ignition, and the vaporized fuel and air are mixed. The gas is combusted in the combustion chamber 20, and the exhaust gas is introduced into the heat exchanger 22.
2 and is discharged from an exhaust port 37 by an exhaust fan 38 rotated by an electric motor 5.

On the other hand, the convection fan 55 rotates due to the drive of the electric motor 56.
The steam passes through the steam path 71 of the air intake port 64 and is blown into the room at a regulating height h by the air conditioning plate 79 formed on the air outlet lower 8 of the air outlet body 77, thereby humidifying the room.

The high-temperature steam generated in the evaporating dish 40 is then throttled through the steam vent 69 of the steam duct 64, and a detour steam path is introduced to reach the outlet opening 1°O at a position offset from above the steam vent 69. 71 and mixed with the air blown from the convection fan 55, the temperature of the steam decreases as it is blown out from the blow-off lower 8, and the steam is not blown out directly at a high temperature.

By selecting the inner diameter of the exhaust gas introduction cylinder 24, which is located below the heat conduction plate 44 and has an open opening, and the distance between the opening face of the exhaust gas introduction cylinder 24 and the heat conduction plate 44, the combustion chamber 20 and A heat conduction plate 44 that regulates the amount of exhaust gas passing through the communication portion with the exchanger 22' and heats the water in the evaporator 39.
The heat conduction plate 4'4 can be heated with the amount of contact of the exhaust gas corresponding to the amount of heat, and the water in the evaporator 3:9 can be rapidly evaporated by intensive heating of the heat conduction plate 44.

Further, by moving the heat shield plate 25 back and forth, the radiant heat from the combustion chamber 20 can be adjusted, and the area where the exhaust gas contacts the heat conductive plate 41 can be adjusted, thereby adjusting the amount of humidification.

...□In the above embodiment, a structure was explained in which the heat shield plate 25 was slid forward and backward along the lower surface of the heat conductive plate 44, but the heat shield plate 25 was rotated so that the exhaust gas was The area that receives radiant heat from the combustion chamber 20 can also be adjusted by adjusting the contact area':.

According to the present invention, the two opposing exhaust gas introduction cylinders are crimped and connected together in the connecting pipe section that communicates the upper part of the combustion chamber and the heat exchanger. By selecting the diameter and the distance between the heating section and the opening surface of the exhaust gas introduction cylinder, it is possible to regulate the amount of contact and passage of exhaust gas commensurate with the heat amount of the heating section, that is, the necessary and sufficient heat amount of the evaporator. The amount of heat is set in the heat exchanger at the top of the combustion chamber, so the capacity can be set in a stable state that is not affected by heat exchange by the heat exchanger.
Therefore, it is possible to equalize the humidifying characteristics of various models with different calorific values or with different heat exchanger capacities, so common parts can be applied to various models, and high-temperature exhaust gas can be used to Since the heating section is heated, the rise characteristics of humidification can be improved, and the time from the activation of the warm air heater to the start of humidification operation by steam generation can be shortened.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view of a warm air heater showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the same as above, Fig. 3 is a longitudinal sectional front view of the humidifying device section as above, □ Fig. 4 is same as above. FIG.゛ □−・1・・・・・・Hot air heater, 20・・・・
... Combustion chamber, 22 ... Intermediate heat exchanger, 23 ... Connection pipe section, 24 ... Exhaust gas introduction cylinder, 39 ...
... Evaporator, 44... Heat conduction plate as a heating section.

Claims (1)

[Scope of utility model registration request] It comprises a combustion chamber of a warm air heater, a heat exchanger communicating with the upper part of this combustion chamber, and an evaporator disposed in the heating part of this heat exchanger.2. An exhaust gas introduction cylinder that faces the heating section and regulates the amount of exhaust gas in contact with the heating section is integrally connected to the connecting pipe section that communicates the upper part of the combustion chamber with the heat exchanger by crimping. A humidifying device for hot air heaters.