JPH0646234U - Steam humidifier - Google Patents

Abstract

(57) [Summary] [Purpose] Accurately detect abnormal overheating in the equipment body,
(EN) Provided is a steam humidifier whose operation is stopped to improve safety. Constitution: The final safety means 9 for detecting an abnormal overheated state in the equipment body 1 is attached to a fitting 10 a part of which is in contact with the heating heater-3, and is provided near the heating tank 2. The abnormal overheated state is detected indirectly by detecting the abnormally high temperature in the instrument body 1 and by directly detecting the temperature of the heating heater 3 by heat conduction through the mounting bracket 10. It is possible to ensure safety by accurately detecting and stopping the operation before the equipment is burned.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a steam humidifier for humidifying a room by utilizing steam generated by heating the heater.

[0002]

[Prior art]

 Conventionally, in this type of equipment, as a safety device for equipment, a float switch that is provided in the water receiving tank and detects the drought of the water supply tank to stop the operation, and the heating tank that is closely attached to the heating tank When the thermostat that detects the empty heating of the equipment and stops the operation and the above-mentioned float switch or thermostat that is provided in the main body of the equipment fails in the main body of the equipment, It was equipped with a final safety measure such as a temperature fuse to stop the operation by operating as a safety device.

[0003]

[Problems to be solved by the device]

 By the way, in this conventional device, since the final safety means is only attached to the side wall and the bottom plate inside the device body, not only the temperature inside the device body but also the ambient temperature where the device is installed are detected, There is a variation in detection, that is, even if the inside of the equipment body is abnormally overheated, if the room in which the equipment is installed is in a low temperature state, the abnormal state will not be detected easily, and if it is serious, it will be a big problem that the equipment body is burned out. It was something that developed.

[0004]

[Means for solving problems]

 This invention focuses on this point and solves the above-mentioned drawbacks. In particular, the configuration is such that a heating tank is fixed to the instrument body, a certain amount of water is stored in this heating tank and heated by a heating heater. In the case of discharging the generated steam from the blow-out nozzle, the final safety means for detecting the abnormal overheat condition in the equipment body and stopping the operation is installed with a part of it touching the heating heater. It is attached in the vicinity of the heating tank by metal fittings.

[0005]

[Action]

 Even if the heating tank 2 is in an empty state due to a malfunction of the thermostat 7 or the like, the heating heater 3 is not de-energized, and if the inside of the apparatus main body 1 is abnormally overheated, The final safety means 9 provided in the vicinity of 2 operates to stop the operation. At this time, the final safety means 9 is partially attached to the mounting metal fitting 10 which is in contact with the heating heater-3. Since the heat of the heating heater-3 is directly received by the heat conduction from the mounting bracket 10, the variation in the detection due to the ambient temperature is absorbed, and the abnormal state can be detected quickly, causing the equipment to burn. There is no need to worry and you can always use it with peace of mind.

[0006]

【Example】

 Next, a steam humidifier according to the present invention will be described with reference to a preferred embodiment shown in the drawings. Reference numeral 1 is a flat oval instrument body made of synthetic resin. In the center, a heating tank 2 is provided with a bottomed tubular shape and the inner surface of the aluminum material is subjected to decalcification treatment with Teflon and the like. A heating heater 3 made of a planar band heater is fixed to the outer periphery of the side wall of the heating tank 2 by a heater metal fitting 4, and a certain amount of water stored inward is heated to heat the steam heater. -It generates a muffler.

The heating tank 2 has a water supply port 5 formed by projecting the central part of the bottom part above the others, whereby the remaining outer peripheral part 6 has a concave shape, and the heater fitting 4 is used on the bottom part. A thermostat 7 that is fixed in place is provided, and the operation is stopped by detecting an abnormally high temperature such as the heating of the heating tank 2. Reference numeral 8 denotes a heating tank mounting plate made of a stainless steel plate, which is fitted to the outer circumference of the heating tank 2 to mount the heating tank 2 in the central portion of the instrument body 1.

Reference numeral 9 is a final safety means composed of a temperature fuse having a fusing temperature of about 170 ° C., one end of which is screwed to the heating tank mounting plate 8 to utilize the spring action of the U-shaped portion in the middle portion. It is attached to the other end of the mounting bracket 10 that abuts against and presses against the heating heater-3, and is located near the outer periphery of the heating tank 2.

Reference numeral 11 denotes a water receiving tank which communicates with the water supply port 5 of the heating tank 2 through a communication pipe 12, and faces a valve body (not shown) in a water supply section 14 of a cartridge type water supply tank 13. The push-up rod 15 is provided, and the makeup water from the water supply tank 13 is supplied to the heating tank 2.

Reference numeral 16 is a float switch for detecting the drought state in the water supply tank 13, which is provided in the water receiving tank 11 and moves up and down according to the water level in the water receiving tank 11 to detect the drought by lowering the water level. The contact is opened to stop only the heating heater-3 from being energized to prevent the water heating. The water supply tank 13 is formed of a transparent synthetic resin so that the internal volume can be seen at a glance and has a donut shape with a hollow central portion.

Reference numeral 17 is a guide cylinder made of transparent synthetic resin that stands upright on the heating tank 2 and is housed in the cavity of the water supply tank 13 when the water supply tank 13 is installed. The lower end of the cylinder 18 is airtightly communicated with the inside of the heating tank 2 through a packing 19 to form a steam flow passage 20 for guiding the steam upward, and the outer periphery thereof is provided inside the instrument body 1. An air flow passage 23 is configured to allow the cooling air from the blower 21 to flow through the two blower towers 22.

Reference numeral 24 is a blow-out nozzle mounted on the upper end of the guide cylinder 17, and the steam flowing through the steam flow passage 20 and the air flowing through the air flow passage 23 inside the blow-out nozzle. And are mixed and discharged into the room through the air outlet 26 having the guide piece 25.

Further, the guide cylinder 17 is formed in an oval shape in horizontal section, and the air flow passage 23 has a larger volume on both sides where the blower tower 22 is located than in the front-rear direction to allow a large amount of cooling air to flow therethrough. By doing so, both sides of the water supply tank 13 having a large amount of water and the water supply unit 14 can be cooled more strongly.

Reference numeral 27 denotes an intake port formed on the side wall of the appliance body 1 for intake of indoor air by driving the blower 21. Reference numeral 28 denotes an operation unit, which is provided with an operation switch 29 and a changeover switch 30 for performing ON / OFF control with constant humidity.

Next, referring to the electric circuit diagram shown in FIG. 5, the motor and the heating heater of the blower 21 are connected to the commercial AC power source 31 through the operation switch 29, the thermostat 7 and the final safety means 9. -Ta-3 is connected, and energization is controlled by each.

Between the motor of the blower 21 and the heating heater-3, a circuit in which a relay 33 is connected to the parallel circuit of the float switch 16 and the changeover switch 30 and the humidity sensor 32 is connected. Are connected in parallel, and the contact 33a of the relay 33, which controls the energization of the heating heater-3, is connected in series with the heating heater-3, and is opened by detecting the water shortage of the float switch 16. Also, the energization of only the heating heater-3 is stopped by opening the humidity sensor-32 by the constant humidity detection with the changeover switch 30 being "ON".

Next, the operation of this embodiment will be described. When the operation switch 29 is turned on to humidify the interior of the room, the blower 21 and the heating heater-3 are energized, and the heating tank 2 is heated by the energization of the heating heater-3 and is stored inward. The steam is generated from a certain amount of water, and the generated steam rises in the steam flow passage 20 of the guide cylinder 17 communicating in an airtight manner and is blown in the blowout nozzle 24 at the upper end. It is possible to satisfactorily humidify the entire room because it is combined with the blast air supplied by the 21 drive and is released into the room.

Further, in this state, when the float switch 16 and the thermostat 7 are out of order and the operation is not stopped even if the heating tank 2 is in an empty state, the heating heater which is originally taken by water is used. The heat of 3 acts on the inside of the equipment main body 1 centered on the heating tank 2, and the inside of the equipment main body 1 becomes abnormally overheated, but this is detected by the final safety means 9 provided near the heating tank 2 and blown. By doing so, the energizing circuit to the blower 21 and the heating heater-3 is opened to stop the operation to ensure the final safety, and the float switch 16 and the thermostat 7 are operated together. Even if there is no abnormality, the operation can be stopped without fail to prevent the worst situation such as burning of the heating tank 2 and the instrument body 1 in advance.

Further, since the final safety means 9 is attached to the mounting metal fitting 10 which is partially in contact with the heating heater-3, the heating heater which is not taken away by water and transmitted during normal operation is used. The heat of 3 is directly transmitted to the final safety means 9 through the mounting bracket 10, and an abnormal condition can be detected quickly. There is no problem that the ambient temperature is detected and the detection is delayed as in the past, and accurate detection is possible. It can be used with care.

Even in the fan lock state where the blower 21 does not operate due to a malfunction, the final safety means 9 which is always cooled by this wind in the blower path detects the temperature rise due to the stop of the blower and operates in the same manner as above. Can be stopped to ensure safety.

[0020]

[Effect of device]

 In short, according to the present invention, the heating tank 2 is fixed to the equipment main body 1, a certain amount of water is stored in the heating tank 2, and the steam generated by heating with the heating heater-3 is generated from the blowing nozzle 21. The final safety means 9 for detecting the abnormal overheat state in the equipment main body 1 and stopping the operation of the equipment to be discharged is provided by a mounting metal fitting 10 partly in contact with the heating heater-3. Since it is installed near the heating tank 2, if the float switch or thermostat fails and operation is not stopped even in the water-fired state, the final safety measure will detect this abnormal overheat condition. Since the operation is stopped, the float switch, thermostat, final safety measures and triple safety measures are taken, and it is extremely safe and can be used with peace of mind.

Further, since this final safety means is partially attached to the mounting metal fitting in contact with the heating heater, the heat of the heating heater is directly transmitted through the mounting metal fitting in the event of an abnormality. Abnormal overheating can be detected quickly, and it is possible to prevent problems such as the conventional atmospheric temperature being detected, which causes variations in detection, resulting in burnout of the heating tank and instrument body. It is possible to improve safety by accurately detecting abnormal overheat.

[Brief description of drawings]

FIG. 1 is a perspective view showing a steam humidifier according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA ′ of FIG.

FIG. 3 is a sectional view taken along line BB ′ of FIG.

FIG. 4 is an enlarged sectional view of the main part.

FIG. 5 is the same electric circuit diagram.

[Explanation of symbols]

 1 Instrument Main Body 2 Heating Tank 3 Heating Heater 9 Final Safety Means 10 Mounting Bracket 24 Blow-out Nozzle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshitake Honma 7-7 Higashishinpo, Sanjo City, Niigata Prefecture

Claims (1)

[Scope of utility model registration request] 1. A heating tank 2 is fixed to an instrument main body 1, a certain amount of water is stored in the heating tank 2, and a steam generated by heating with a heating heater-3 is discharged from a blowing nozzle 24. In the case of discharging, the final safety means 9 for detecting an abnormal overheated state in the equipment main body 1 and stopping the operation is attached to the heating heater 3 by a mounting metal fitting 10 partly in contact with the heating tank 2 Steam humidifier characterized by being installed in the vicinity.