JPS606678B2 - clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention heat-exchanges hot water supplied from a circulating heat exchanger with a heat exchanger installed in the main body, blows the obtained hot air into a rotating drum, and cools the dried material. The present invention relates to a hot water fan coil type clothes dryer which is adapted to dry clothes using warm air, and is intended to provide an easy-to-use clothes dryer.

A clothes dryer performs drying by blowing warm air onto the items to be dried, evaporating the moisture contained in the items, and carrying away the moist air outside the machine.

Conventionally, the heat sources that are the main part of this system are electric heater type and gas combustion type, and these are installed inside the aircraft.At the same time as the power is turned on, the drum rotates and a fan draws in outside air and passes it through the heat generating part. Especially because of the hot air. A so-called hot water fan coil type dryer has been developed that has a heat exchanger that exchanges heat with hot air supplied from a circulating water heater as the heat source of the dryer, but when the dryer is operated, the water that circulates through the heat exchanger has been developed. Sometimes the dryer is not heated sufficiently or it takes a long time to heat up, and even if you put the material to be dried into the drum of the dryer and turn on the power switch, the warm air will not flow into the drum immediately. Sometimes I couldn't get it. Traditional electric heater type clothes dryers and gas combustion type clothes dryers have operating times set in advance based on the amount of cloth, room temperature, etc., but hot water fan coil type clothes dryers use circulating water. The heating time depends on the conditions of use (for example, the circulating water may be preheated or not) and the type of circulating water feeder [generally, the time required for circulating water to heat depends on the amount of circulating water.] , varies depending on the amount of heat generated by the water heater.
], etc., and the operation of this hot water fan coil type clothes dryer is less convenient than conventional electric heater type or gas combustion type clothes dryers, and it is difficult to operate the hot water fan coil type clothes dryer than with conventional electric heater type or gas combustion type clothes dryers. This caused problems such as damage to clothing. In view of the above points, the present invention aims to provide a warm water fan coil type clothes dryer that is easy to use.

The present invention will be described below based on drawings showing an example of implementation. In the figure, 1 is the main body of the dryer forming an outer frame, and a fin plate type heat exchanger 2 (hot water circulation type radiator) is installed on the inner surface of the lower part of the front plate la of the main body 1, and the front plate la of the main body is provided with a A port 3 is provided, and the fins of the heat exchanger 2 are connected to the main body front plate la.
A filter 4 and a filter cover 5 are installed so as to be closely attached to the inner surface of the fin, and cover the surface of the fin to prevent dust contained in the outside air from adhering to the fin. Reference numeral 6 denotes a drum that accommodates the material to be dried within the main body i, and a large number of air intake holes 7 are provided in the front wall of the drum 6.
, and the front plate l of the main body 1 faces the intake hole 7.
A sealing material 9 such as felt is provided between the outer periphery of the drum front plate 8 provided on the inner surface and the front wall of the drum 6 to maintain airtightness between the outer periphery of the drum front plate 8 and the front wall of the drum 6. It is configured as follows.

A bearing material 10 is provided on the inner circumferential surface of the drum front plate 8, and this bearing material 10 rotates the drum 6 around the horizontal axis by receiving the outer circumferential surface of the cylindrical flange portion 6a of the front wall of the drum 6. I can carry my bag freely. On the other hand, a large number of hot air exhaust ports 11 are provided at the center of the rear arm of the drum 6. Reference numeral 12 denotes a fan case with an exhaust fan 13 built therein, and an exhaust air cylinder 14 that extends outward from the main body 1 is connected to the open end of the case 12.

A shaft 15 fixed to the center of the rear wall of the drum 6 is rotatably supported by a bearing 16 fixed to the fan case 12, and a filter is provided in an inner recess 6b formed by projecting the center of the rear wall of the drum 6 outward. 17 and filter cover 1
8 is removably attached. Further, a sealing material 19 is applied to the outer peripheral surface of the convex portion at the center of the rear wall of the drum 6, and this sealing material 19 is movably applied to the surface of the fan case 12 to maintain airtightness. The warm air heat-exchanged in the two-way heat exchanger 2 is guided into the drum 6 through the air intake hole 7 from an air intake port 21 provided at the bottom of the drum front plate 8 so as to face the air supply hole 7. It is a warm air cylinder, and both ends of this hot air cylinder 20 are attached so as to maintain airtightness with respect to the heat exchanger 2 and the intake air □ of the drum front plate 8.

22 is a motor, and a drum pulley 2 is attached to its rotating shaft 22a.
3 and fan pulley 24, and attach the drum belt 2 to each
5. Drum 6 and fan 13 via fan belt 26
It is designed to drive the

27 is a thermostat attached to the lower end of the heat exchanger 2 (or near the heat exchanger 2), which detects the temperature of the hot water sent into the heat exchanger 2, and is connected to the primary side of the power supply circuit. Connect to.

This thermostat 27 has a built-in contact that opens when normal hot air is applied, but closes when the temperature exceeds a predetermined temperature. 2
Reference numeral 6 denotes a motor type time switch for determining the operating time limit, which is attached to the upper end of the front plate la of the main body.

The thermostat 27 is connected in series to the contacts of the time switch 28. To explain the operation of the above configuration, first, hot water is supplied from the circulation water heater to the pipe of the heat exchanger 2.

Then, the material to be dried is put into the drum 6 and the power switch is turned on. At this time, if the heat exchanger 2 is being heated by hot water and the contacts of the thermostat 27 are closed, the motor 22 will rotate, the drum 6 and the fan 13 will start rotating at the same time, and the cold air in the heat exchanger 2 will be sucked. The warm air is guided from the hot air ear 20 to the drum 6, contacts the material to be dried, evaporates moisture, and is exhausted outside the machine via the exhaust type 14. The clothes dryer of the present invention can be implemented as described above, and the thermostat 27 attached to the heat exchanger 2 is set to a normal temperature (for example, 50 o
(o and below), the contacts are open, so even if the time switch 28 of the dryer is turned on, the motor 28a and the motor 22 of the switch 28 will not operate, and will only start operating after the heat exchanger 2 is heated with hot water.

Therefore, if you set the time switch 28 to a predetermined drying time in advance, hot air will be supplied at the same time as the machine is operated, so the drying time will not vary greatly, and hot water will not be supplied from the circulating flaw heater. This eliminates the unreasonable situation of clothes not being dried even if the dryer is running when there is no dryer.
As described above, the present invention can provide an excellent hot air fan coil type clothes dryer that exhibits great effects with an extremely simple configuration.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a clothes dryer according to an embodiment of the present invention, FIG. 2 is an enlarged view of the main part of FIG. 1, and FIG. 3 is a circuit diagram.
FIG. 4 is a graph showing the relationship between the surface temperature of the heat exchanger and the ignition time of the circulating water heater boiler and the operating point of the thermostat. 1...Main body, la...Front plate, 2...Heat exchanger, 6...
・Drum, 13...fan, 22...motor, 27...thermostat, 28...time switch. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 An outer frame, a drum rotatably provided in the outer frame around a horizontal axis, a drive device for rotating the drum, and a blower device for guiding outside air into the drum, the drum A hot water circulation type radiator is installed in the ventilation path that introduces outside air into the interior, and the configuration is configured so that the hot air obtained by heat exchange with this radiator is blown to the material to be dried in the drum. A normally open contact thermostat is connected in series with the switch contacts, and the thermostat is installed on or near the radiator to detect the temperature of the water sent into the radiator, and when the temperature of the water exceeds a certain temperature. A clothes dryer characterized in that a drying operation is started at a certain time.