JPH1085496A - Clothes dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unnecessitate the execution of a special adiabatic processing and to constitute a drier itself to be compact by constituting a heating means for forming hot air for drying of a heat exchange setting hot water to be a heat source to considerably lower the surface temperature of the heat exchange for forming hot air. SOLUTION: At the time of turning on the drying operation switch of a drier remote controller R2, a circulation pump 13 is driven and a fan for burning 7 is rotated. The intermittent valve 41 of a gas supply route 40 is opened and gas is supplied for a burner for burning 6 through a gas proportional valve 42 to be fired by an igniter. At the time, an opening and closing valve 16 is maintained to be opened to return hot water heated by the heat exchange for drier 1 into an expansion tank 8 through a heat exchange for forming hot air for the clothes drier. After then, when the rotary drum for the clothes drier and the fan for the drier are rotate, absorbed external air is heated by the exchange 11 to dry clothes by the heated air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage section for storing an object to be dried, hot air supply means connected to the storage section for supplying hot air for drying to the storage section, The present invention relates to a clothes dryer provided with a heating means for forming wind.

[0002]

2. Description of the Related Art Conventionally, this type of clothes dryer includes an electric clothes dryer that forms hot air for drying by an electric heater and a gas dryer that uses exhaust gas generated by gas combustion as hot air for drying. BACKGROUND ART Combustion-type clothes dryers and the like are known.

[0003]

However, in an electric clothes dryer, the electric heater becomes extremely hot, and in a gas-fired clothes dryer, it is necessary to burn a gas burner. When assembling a gas dryer with a clothes dryer, give sufficient insulation treatment,
It is necessary to keep a certain distance from other parts, and there is a disadvantage that the dryer itself is inevitably increased in size.

An object of the present invention is to provide a clothes dryer in which the drawbacks of the electric and gas-fired clothes dryers can be solved and the dryer itself can be made compact.

[0005]

According to the first aspect of the present invention, a heating means for forming hot air for drying uses hot water as a heat source. Since it is composed of heat exchangers, the surface temperature of the heat exchanger for forming warm air is considerably lower than that of the electric heater of the electric clothes dryer. It is not necessary to perform special heat-insulating treatment when assembling the dryer, and it is also possible to assemble the dryer close to other parts, so that the dryer itself can be made compact.

According to the second aspect of the present invention, the storage section for storing the object to be dried is formed by a rotatable rotary drum.
Further, the hot air supply means includes a hot air supply cylinder, an exhaust duct, and a fan communicating with the rotating drum, and the hot air heated by the hot air forming heat exchanger is heated by the rotation of the fan. Because it is configured so that it is supplied from the supply cylinder into the rotating drum and discharged from the exhaust duct,
The hot air for drying dries the material to be dried evenly by the rotation drive of the rotary drum, and discharges the wet air after drying from the exhaust duct, so that the material to be dried such as clothes can be dried well. .

According to the third aspect of the present invention, the heat exchanger for drying is connected to the heat exchanger for forming hot air through the hot water supply path for the dryer and the return path. Since the exchanger is heated by a gas-fired burner, the required hot water can be obtained quickly and efficiently by the combustion of a gas that generates a large amount of heat compared to an electric heater, etc., and the running cost is reduced. Can be suppressed.

According to the fourth aspect of the present invention, there is provided a hot water supply heat exchanger for heating water from a water supply path and supplying the same to the hot water supply path, and the hot water supply heat exchanger is heated by the gas combustion type burner. Therefore, the same gas-fired burner can heat the heat exchanger for the dryer and the heat exchanger for hot water supply, and the hot water heated by the heat exchanger for hot water supply can be used to fill a bathtub or a kitchen. In consideration of the compactness of the above-mentioned clothes dryer and the reduction of running costs, it is possible to provide a clothes dryer most suitable for general household use.

According to the fifth aspect of the present invention, there is provided a dryer control means for controlling the operation of the rotating drum and the fan of the clothes dryer, and a dryer remote controller for giving a control command to the dryer control means. Since the hot water supply control means for controlling the operation of the gas combustion type burner and the main remote control for giving a control command to the hot water supply control means are provided, the remote control for the dryer is close to the clothes dryer, The main remote control can be placed in the most suitable place such as the kitchen, and the control means for the dryer and the hot water supply control means can communicate with each other. The operation of a gas-fired burner or the like can be controlled by this, and it can be used very conveniently.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a clothes dryer according to the present invention will be described with reference to the drawings. In this clothes dryer, hot water supplied from a hot water supply device is used as a heat source to form hot air for drying. As shown in FIG. 1, the hot water supply device includes a dryer heat exchanger 1 and a hot water supply heat source. A heat exchanger tube 2 of the dryer heat exchanger 1 and a heat exchanger tube 4 of the hot water supply heat exchanger 2.
Are connected to each other by a plurality of common heat transfer plates 5. The dryer heat exchanger 1 and the hot water supply heat exchanger 2 are configured to be heated by one gas-fired burner 6 and supply combustion air to the gas-fired burner 6. A combustion fan 7 is also provided.

The heat transfer tube 3 of the dryer heat exchanger 1 is connected to a dryer water supply passage 9 for supplying hot water in the expansion tank 8 and a dryer hot water supply passage 10 for supplying heated water. The dryer hot water supply passage 10 is connected to a hot air forming heat exchanger 11 for drying clothes. A return path 12 for the dryer is connected to the heat exchanger 11 for forming the warm air for the clothes dryer, and the hot and cold water that has been heat-exchanged by the heat exchanger 11 for forming the warm air is supplied to the dryer. It is configured to be returned into the expansion tank 8 via the return path 12.

The water in the expansion tank 8 is sucked into the water supply passage 9 for the dryer and supplied to the heat exchanger 1 for the dryer.
A circulation pump 13 for supplying the heated hot water to the hot air forming heat exchanger 11 is provided.
A thermistor 14 for a dryer for detecting the temperature of the hot water after heating is provided. The dryer hot water supply path 10 and the dryer return path 12 downstream of the dryer thermistor 14 are connected to the dryer bypass path 1 that bypasses the hot air forming heat exchanger 11.
An electromagnetic on-off valve 16 for intermitting hot water flow is provided in the dryer hot water supply passage 10 downstream of the connection point of the bypass passage 15.

As shown in FIG. 2, the clothes dryer has a rotating drum 17 as a storage section for storing articles to be dried such as clothes.
The rotating drum 17 is rotatably held inside the outer casing 18, and the rotation axis X of the rotating drum 17 is
A circular clothing input port 19 is opened at one end in the direction along, and a circular exhaust port 20 is also opened at the other end. A filter 21 is attached to an exhaust port 20 which is an opening in the rotating drum 17, and the exhaust port 20 has
The exhaust duct 22 faces, and the exhaust duct 22 extends to the outside of the outer casing 18.

On the clothes input port 19 side of the rotating drum 17,
An annular hot air supply cylinder 23 fixed to the outer casing 18 side
Are arranged concentrically with the rotation axis X of the rotary drum 17, and a large number of hot air supply holes 24 formed in the hot air supply cylinder 23 are opened toward the clothing inlet 19. An outside air suction duct 25 is connected to the hot air supply cylinder 23 and communicates with the outside air suction duct 25.
Is provided, and a fan 26 for a dryer is provided in an outside air intake duct 25 upstream of the heat exchanger 11. The heated air is heated by the forming heat exchanger 11, and the heated hot air is sent into the rotating drum 17 and discharged to the outside via the exhaust duct 22. The hot air supply cylinder 23, the outside air intake duct 25, and the fan 26 , And the exhaust duct 22 function as hot air supply means.

The rotating drum 1 of the outer casing 18
7, a circular opening is provided at a position facing the clothes input port 19, and a door 27 that opens and closes the opening is swingably attached. By opening the door 27,
The central opening of the annular hot air supply tube 23 and the clothing inlet 1
9, the drying object can be put into the rotating drum 17 or taken out from the rotating drum 17. Inside the door 27, when the door 27 is closed, it turns ON,
A switch 28 that is turned off when opened is provided, and a rotating drum electric motor 29 for rotating and driving the rotating drum 17 and a fan electric motor 30 for rotating and driving the fan 26 are provided in the outer casing 18. I have.

The heat transfer pipe 4 of the hot water supply heat exchanger 2 is connected to a water pipe for general household to supply water for heating, and a hot tub is supplied to a hot tub or a hot water supply (not shown). A hot water supply passage 32 for supplying water to the tap is connected, and the water supply passage 31 is provided with a water amount sensor 33 for detecting a water flow amount and a water supply thermistor 34 for detecting a water supply temperature to the hot water supply heat exchanger 2. 3
On the second side, a tapping thermistor 35 for detecting the temperature of the hot water after heating is provided. The water supply path 31 and the hot water supply path 32 are connected to each other by a bypass path 36 that bypasses the hot water supply heat exchanger 2, and at a connection point with the hot water supply path 32, the amount of hot water from the hot water supply heat exchanger 2 and the bypass path 36 are provided. A mixing valve 37 is provided for adjusting the mixing ratio with the amount of water from the mixer and for obtaining hot water of a desired temperature. A thermistor 38 and a proportional solenoid valve 39 for adjusting the flow rate are provided.

The burner 6 is connected to a gas supply passage 40 for supplying fuel gas for general household use. The gas supply passage 40 has an on-off valve 41 for interrupting the supply of fuel gas and an electromagnetic gas proportional valve. A valve 42 is provided and the burner 6
Although not shown in the figure, an igniter for igniting the burner 6 and a frame rod for detecting ignition are also provided.

The operation of the hot water supply device including the burner 6 and the clothes dryer is all controlled by a control section H mainly composed of a microcomputer.
As shown in FIG. 3, the control unit H controls a hot water supply control unit H1 as hot water supply control means for controlling the operation of the hot water supply device, and controls the electric motor 29 for the rotating drum and the electric motor 30 for the fan of the clothes dryer. The hot water supply control unit H1 is housed in the heat source unit of the hot water supply device, and the dryer control unit H2 is housed in the outer casing 18 of the clothes dryer. Both are communication control units 4
It is configured to be able to communicate with each other via the 3 and 44.

The communication control unit 43 of the hot water supply control unit H1 includes:
A main remote controller R1 including an operation switch 45 and a temperature setting switch 46 for setting a hot water supply temperature during hot water supply operation.
Is connected to the communication controller 44 on the side of the dryer controller H2, a dryer remote controller R2 having a drying operation switch 47 for instructing the operation of the dryer and a time setting switch 48 for setting the drying operation time. It is connected.

Next, the operation of the hot water supply device and the clothes dryer will be described.
5 when the hot water tap (not shown) is opened, the general hot water supply operation is executed, and the dryer remote control R
When the drying operation switch 47 is turned on, the drying operation is executed.

In the general hot water supply operation, the water flow sensor 33 detects that a predetermined amount or more of water has flowed through the water supply passage 31, rotates the combustion fan 7, and switches the intermittent valve 41 of the gas supply passage 40. Is opened, the opening of the gas proportional valve 42 is adjusted, and the gas-fired burner 6 is ignited by the igniter. The hot water heated by the hot water supply heat exchanger 2 by the combustion of the burner 6 is supplied to the bypass passage 36 by the mixing valve 37.
And the hot water of the temperature set by the temperature setting switch 46 is discharged from the hot water tap.

When the drying operation switch 47 of the dryer remote control R2 is turned on in an operable state, the circulating pump 13 is driven, and the burner 6 is operated in the same operation as the hot water supply operation described above.
Is burned. At this time, the on-off valve 16 is maintained in a closed state, and the hot water heated by the dryer heat exchanger 1 flows into the expansion tank 8 via the dryer bypass 15 and the dryer return 12. Therefore, even if hot water is present in the dryer heat exchanger 1 due to the combustion of the burner 6 by the hot water supply operation, the hot water is supplied to the clothes dryer and adversely affects various devices. Is avoided. Then, when the temperature detected by the dryer thermistor 14 becomes equal to or lower than a predetermined temperature, the on-off valve 16 is opened, and hot water having a predetermined temperature is supplied to the heat exchanger 11 for forming hot air.

At the same time, the rotary drum electric motor 2
9, the rotating drum 17 is driven by the electric motor 30 for the fan.
The fan 26 for the dryer is driven to rotate by the rotation of the fan 26, and the outside air is sucked from the outside air suction duct 25 with the rotation of the fan 26, and the sucked outside air is used as the hot air forming heat exchanger 1
Heated by 1. The heated hot air is supplied to the hot air supply tube 23.
Is supplied into the rotary drum 17 from the hot air supply hole 24, and the object to be dried in the rotary drum 17 is dried by the hot air. The moist warm air after drying the material to be dried is discharged from the exhaust duct 22 and after the time set by the time setting switch 48 has elapsed, the rotating drum 17 and the dryer fan 26 are turned off.
Is stopped, the combustion of the burner 6 also stops, and the drying operation ends.

This drying operation can be executed in parallel with the hot water supply during the above-described hot water supply operation. When the door 27 is opened during the drying operation, the switch 28 is turned off,
When the drying operation is temporarily stopped and the door 27 is closed, the switch 28 is turned on and the drying operation is continued.

[Another Embodiment] In the above embodiment,
Heat exchanger 1 for forming hot air by heating with gas-fired burner 6
Although a configuration in which hot water is supplied to the apparatus 1 has been described, the configuration may be such that hot water is obtained by an electric heater or another heat source. Further, the example in which the rotary drum 17 is used as the storage unit for storing the object to be dried is shown, but the storage unit for the object to be dried does not necessarily need to be rotated. In actual implementation, various changes can be made, such as a configuration in which the exchanger 2 and the exchanger 2 are heated by separate gas-fired burners.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of the entire hot water supply apparatus.

FIG. 2 is a schematic sectional view of a clothes dryer.

FIG. 3 is a block diagram of a control unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat exchanger for dryers 2 Heat exchanger for hot water supply 6 Gas combustion type burner 10 Hot water supply path for dryers 11 Heat exchanger for hot air formation 12 Return path for dryers 17 Rotary drum as storage section 22 Exhaust duct 23 Temperature Air supply tube 26 Fan 31 Water supply channel 32 Hot water supply channel H1 Hot water supply control means H2 Dryer control means R1 Main remote controller R2 Dryer remote controller

Claims (5)

[Claims] 1. A storage section for storing an object to be dried, hot air supply means connected to the storage section for supplying hot air for drying to the storage section, and a section for forming the hot air. A clothes dryer comprising heating means, wherein the heating means is constituted by a heat exchanger for forming hot air using hot water as a heat source. 2. The storage section comprises a rotatable rotatable drum, and the hot air supply means comprises a hot air supply cylinder communicating with the rotary drum, an exhaust duct, and a fan. 2. The rotary drive according to claim 1, wherein the hot air heated by the hot air forming heat exchanger is supplied from the hot air supply tube into the rotary drum and discharged from the exhaust duct by the rotation drive. 3. Clothes dryer. 3. The hot air forming heat exchanger via a dryer hot water supply path for supplying hot water to the hot air forming heat exchanger and a dryer returning path for returning hot water after heat exchange. The clothes dryer according to claim 1 or 2, wherein a heat exchanger for a dryer is connected to the heat exchanger, and the heat exchanger for the dryer is heated by a gas combustion type burner. 4. A hot water supply heat exchanger for heating water from a water supply path and supplying the same to the hot water supply path, wherein the heat supply heat exchanger is heated by the gas combustion type burner. 4. The clothes dryer according to 3. 5. A dryer control means for controlling the operation of the rotary drum and the fan, a dryer remote controller for giving a control command to the dryer control means, and controlling the operation of the gas combustion type burner. 5. The garment according to claim 4, wherein a hot water supply control means for controlling and a main remote controller for giving a control command to the hot water supply control means are provided so that the dryer control means and the hot water supply control means can communicate with each other. Dryer.