JPH0475697A - Clothings drying machine - Google Patents

Abstract

PURPOSE:To prove a drying efficiency and to improve a dehumidifying performance by providing an air blowing wind tunnel and a heat exchanger connected thereto on the air exhaust side of an air blowing fan, and also, providing a first temperature sensor and a second temperature sensor on the drain side of a cooling pipe of the heat exchanger, and the air blowing wind tunnel on the air exhaust side of the air blowing fan, respectively, detecting a variation of a temperature difference of these first and second temperature sensor parts, and executing the control of a drying motion. CONSTITUTION:Dehumidified air (b) is heated by a heater 14 and fed into a drum 1, and heated dry air (c) fed dries clothings 17. The air which dries the clothings 17 passes through a filter 5 and is fed into the wind tunnel 12 side again by an air blowing fan 7. By repeating it, a drying cycle advances, and condensed water generated in a heat exchanger 11 is drained from a drain port 18, and clothings can be dried without exhausting humid air to the outside of a drying machine. Also, when drying approaches the end, a temperature difference DELTAt of a first temperature sensor 21 and a second temperature sensor 22 part becomes large, but when DELTAt becomes a prescribed value, a delicate drying control such as the drying operation is finished, etc., can be executed. In such a way, hot air of high humidity is not exhausted to the outside of the machine, and an anxiety of deteriorating the indoor dwelling environment can be eliminated.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is directed to a water-cooled dehumidifying type clothing equipped with a so-called dehumidifying function that condenses the moisture in the drying air subjected to the drying process by a cooling effect and releases the moisture to the outside of the machine. Regarding dryers, conventional technologyConventional dehumidifying clothes dryersThe mainstream type is one that uses external air to cool an air-cooled heat exchanger installed in the circulating air path to perform a dehumidifying effect. The problem with this method is that when a dryer is used indoors, the indoor temperature becomes extremely high, causing strong discomfort to the user during the rainy season, and the drying and dehumidifying performance is significantly reduced. Problems to be Solved by the Invention In order to solve these problems, a dehumidifying clothes dryer using a water-cooled heat exchanger has already been proposed. The purpose of the present invention is to solve these problems and provide a water-cooled dehumidifying clothes dryer that improves drying efficiency and dehumidifying performance. Means for Solving the Problems The present invention provides a blower fan behind the clothes drying drum,
A blower cylinder and a heat exchanger connected to it are installed on the air discharge side of the blower fan, and an electromagnetic water supply valve is connected to the communication tube of one cooling pipe to supply cooling water such as tap water to a timer, etc. Water is supplied intermittently by a control device, and the humid air that has passed through the blower cylinder is brought into contact with the cooling fins installed on the outside of the communication tube of the cooling pipe to dehumidify it.The dehumidified air passes through a heating heater. This is a water-cooled dehumidifying type clothes dryer in which air is blown into the clothes drying drum again from the front of the clothes drying drum after the clothes are heated. A second temperature sensor is provided on the air blower body on the air discharge side of the blower fan, and the drying operation is controlled by detecting changes in the temperature difference Δt between the first and second temperature sensor sections. be.

Function The present invention has the above-described configuration, and by intermittently supplying cooling water to the cooling pipe of the heat exchanger using a control device such as a timer, it is possible to control the amount of cooling water to an optimum level and save water. Sectional plate A system that optimizes cooling water supply depending on outside temperature and amount of clothing.
In addition, the cooling fins of the heat exchanger dehumidify by directly contacting the humid air that has passed through the blast cylinder, so the dehumidification efficiency is high. By detecting changes in the temperature difference Δt between the temperature sensor of Embodiment of operation control Figure 1 shows a cross section of a clothes dryer according to an embodiment of the present invention. Figure 2 shows an electric circuit diagram. Figure 3 shows changes in temperature on the cooling water drain side and fan exhaust side. In Figures 1 and 2, (1) is a drum for drying clothes, and the motor (
2), a motor pulley (3), and a belt (4). The rear of the drum (1) is equipped with a filter (5) and a filter cover (6), and the fan (7) is for air circulation, and the motor (2)
fan bushes, ribs (8), (9) and belts (10)
) 4 (11) is a heat exchanger
It communicates through the wind barrels (12) and (13), and the wind barrel (
13) is equipped with a heater (14) inside the drum (1), a blower fan (7), a heat exchanger (
The heat exchanger (11) is equipped with cooling pulp (15) with high thermal conductivity inside, and the cooling pipe (15)
Even though cooling fins (16) such as thin aluminum plates are provided on the outside of the cooling fins (16), the circulating air (a) that enters from the wind barrel (12) comes into direct contact with these cooling fins (16) and is cooled. ) is efficiently condensed and the dehumidified air (b) is sent to the wind drum (13). The dehumidified air (b) is heated by the heater (14) and sent into the drum (1). The heated dry air (c
) is used to dry the clothes (17).The air that has dried the clothes (17) passes through the filter (5) and is again sent to the wind barrel (12) by the blower fan (7).This process is repeated to complete the drying cycle. As the process progresses, the condensed water generated in the heat exchanger (11) is drained from the drain port (18), making it possible to dry clothes without discharging humid air outside the dryer.
(19) is an electromagnetic water supply valve that intermittently supplies cooling water such as tap water to the cooling pipe (15) of the heat exchanger (11) using a control device (20) such as a timer to prevent wasted water consumption. It has become. Joint plate The first temperature sensor (21) on the drainage side of the cooling pipe (15) and the air blower body (12)
) Appropriate cooling water supply control is performed based on the temperature shown in FIG. Also, when the drying is near the end, the first temperature sensor (
It has been experimentally found that the temperature difference △t between the temperature sensor (21) and the second temperature sensor (22) becomes thicker, and when △t becomes a constant value, for example at point P in Fig. 2. As described above, the present invention provides a heat exchanger inside the clothes dryer, and uses cooling water to control moisture in the high-temperature air that is generated when drying clothes. Since the air is condensed and dehumidified, hot air with high humidity is not discharged outside the machine, and there is no need to worry about degrading the indoor living environment.In addition, cooling water is supplied intermittently by a control device such as a timer, achieving optimal cooling. Since the amount of water is controlled, there is no wastage of water and water can be saved.

[Brief explanation of drawings]

20 "Champion right" value l Demo (1)...(clothes drying) drum (7)...Blower fan, (11)...Heat exchanger (12), (1
3)... Wind IIN (14)... Heater, (1
5)... Cooling pipe, (19)... (electromagnetic) water supply valve, (20)... Control device (21)... First temperature sensor (22)... First 2 Name of temperature sensor agent: Patent attorney Shigetaka Awano and 1 other person/Tram

Claims (2)

[Claims] (1) A blower fan is installed behind the clothes drying drum, and a blower cylinder and a heat exchanger connected to this are installed on the air discharge side of the blower fan, and this heat exchanger is connected to a communication tube of one cooling pipe. By connecting an electromagnetic water supply valve, cooling water such as tap water is intermittently supplied using a control device such as a timer, and the highly humid air that has passed through the blower cylinder is sent to the cooling fins installed on the outside of the cooling pipe. This clothes dryer dehumidifies the clothes by touching them, and after the dehumidified air passes through a heater and is heated, it is blown into the clothes drying drum again from the front of the clothes drying drum. (2) A first temperature sensor is provided on the drainage side of the cooling pipe of the heat exchanger, and a second temperature sensor is provided on the air blower body on the air discharge side of the blower fan, and the temperatures of the first and second temperature sensor sections are A claim for controlling the drying operation by detecting a change in the difference (
The clothes dryer described in 1).