JPS63206293A - Dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a dryer for drying clothes, tableware, etc.

[Background technology]

FIG. 4 shows a conventional clothes dryer. This clothes dryer includes a drying chamber 31 for storing moisture-containing clothes, a heater 32 for heating the air in the drying chamber 31, and a drying chamber 31 for storing moisture-containing clothes.
1 and a condenser 33 for condensing moisture in the air.

The blower 34 is a fan that sends air inside the drying chamber 31 to the condenser 33, and the blower 35 is a cooling fan that sends air outside the drying chamber 31 to the condenser 33. 37 is a door. 36 is a storage room.

The high-temperature air heated by the heater 32 absorbs moisture from the clothes in the drying chamber 31, becomes hot and humid, and is sent to the condenser 33 by the blower 34. The air that has been cooled and dehumidified by the condenser 33 is heated again by the heater 32 and sent to the drying chamber 3.
Sent within 1.

However, in such a configuration, since dehumidification is performed by causing dew condensation, it is necessary to lower the air temperature below the dew point, and in addition to the 'fa heat required for condensation, the sensible heat component of the temperature drop is lost. As a result, running costs were high.

[Object of the Invention] An object of the present invention is to provide an energy-saving dryer with low running costs.

[Disclosure of the invention]

The dryer of the first invention includes a drying chamber that stores an object to be dried, a heater that heats the air in the drying chamber, and a partition between the inside and outside of the drying chamber that allows water vapor to pass through due to the difference in water vapor partial pressure on both sides. It is equipped with a water vapor separation device having a water vapor separation membrane.

According to the configuration of the present invention, since the heater is provided to heat the air in the drying chamber, the water content of the material to be dried is efficiently evaporated.
Increase the water vapor partial pressure in the drying chamber. Since an aquatic plant vapor separation device having an aquatic plant vapor separation membrane that allows water vapor to pass through due to the difference in water vapor partial pressure on both sides is provided, the water vapor in the drying chamber passes through the water vapor separation membrane and exits to the outside of the drying chamber.

In this way, unlike dehumidifying the air by cooling it below the dew point and causing dew condensation, no cooling is required, so the total energy required for this cooling can be saved.

Therefore, an energy-saving dryer with low running costs can be realized.

A dryer according to a second aspect of the invention includes a drying chamber that stores an object to be dried, a heater that heats the air in the drying chamber, a closed-loop circulation ventilation path that enters and exits the drying chamber, and a drying chamber that is arranged in the drying chamber and a water vapor separation device that uses a cylindrical water vapor separation membrane that forms a part of a circulation ventilation passage to allow water vapor to permeate into the interior due to a difference in water vapor partial pressure; a ventilation means provided in the circulation ventilation passage; A condenser is arranged in the ventilation passage and condenses water vapor based on the temperature difference between the outside and outside of the drying chamber.

According to the structure of the present invention, a closed-loop circulation ventilation path that goes in and out of the drying chamber is provided, and a water vapor separator, a condenser, and a blowing means are provided in this circulation ventilation path, so that the water vapor in the drying chamber is removed from the water vapor separation device. The gas is absorbed by the gas in the circulation ventilation path and condensed in the condenser, and the gas having a lower water vapor partial pressure is sent back to the water vapor separation device by the blowing means.

In this way, water vapor is collected by the aquatic plant mood device and then cooled by the condenser, so efficient cooling can be achieved.
Energy required for cooling can be saved.

Therefore, an energy-saving dryer with low running costs can be realized.

In addition, since the gas in the closed loop ventilation passage circulates and removes water vapor from the drying chamber, no water vapor is released into the space around the drying chamber.

Embodiment An embodiment of the first invention will be described with reference to FIG. This dryer consists of a drying chamber 1 that stores items to be dried, a heater 2 that heats the air in the drying chamber 1, and a partition between the inside and outside of the drying chamber 1, which allows water vapor to pass through due to the difference in water vapor partial pressure on both sides. The water vapor separation device 4 has a water vapor separation membrane 3 that allows the water vapor to separate.

The drying chamber 1 is a rectangular parallelepiped-shaped container, and a door 5 is provided on the negative side. The storage chamber 6 is provided on the rR5 side in the drying chamber 1 and stores the materials to be dried. The storage chamber 6 has nine air holes on the bottom and back surfaces. The heater 2 is provided below the storage chamber 6 and is made of nichrome wire or the like.

The water vapor separation device 4 has a substantially cylindrical shape, is provided inside the drying chamber 1 on the back side of the storage chamber 6, and has a plurality of round pipe-shaped water vapor separation membranes 3. These aquatic plants MB13 are arranged vertically at regular intervals, and their outer surfaces are connected to the drying chamber 1.
It is exposed outside.

The lower ends of the round pipes are grouped and closed by a lower holder 7, the upper ends of the round pipes are grouped together by an upper holder 8, and the space inside the round pipes is opened to the outside of the drying chamber 1 through a pipe 9. Steam bone HD'J,3 is made of cellulose acetate and the like.

The pressure reducing means 10 is comprised of a vacuum pump or the like, and is interposed between the pipes 9. The pressure reducing means 10 reduces the pressure inside the round pipe, that is, on the outside side of the drying chamber 1 of the water vapor separation membrane 3.

The blower 1) consists of a fan and the like, and is provided between the back surface of the storage chamber 6 and the water vapor separator 4. The blower 1) sends the air in the storage chamber 6 to the steam separator 4, and also sends the air to the heater 2. Send it to storage room 6.

According to the configuration of this embodiment, since the heater 2 that heats the air in the drying chamber 1 is provided, the water content of the material to be dried is efficiently removed.
The water vapor is emitted and the partial pressure of water vapor inside the drying chamber 1 is increased. Water vapor separation II that allows water vapor to pass through due to the difference in water vapor partial pressure on both sides
*Since the water vapor separator 4 with 3 is installed, the drying chamber 1
The water vapor inside passes through the water vapor separation membrane 3 and exits to the outside of the drying chamber 1.

In this way, unlike dehumidifying the air by cooling it below the dew point and causing dew condensation, no cooling is required, so the total energy required for this cooling can be saved.

Therefore, an energy-saving dryer with low running costs can be realized.

Further, since the pressure reducing means 10 is provided to reduce the pressure on the outside side of the drying chamber 1 of the water vapor separation membrane 3, water vapor is sucked outside the drying chamber 1 and the water vapor partial pressure difference on both sides of the water vapor separation membrane 3 is increased. Therefore, the drying chamber 1 can be efficiently dehumidified.

Next, another embodiment of the first invention will be described based on FIG. The structure of this embodiment differs from the embodiment shown in FIG.
3, a blowing means 15 for sending air to the ventilation passage 14 is provided, and a preheating heat exchanger 16 is provided in the ventilation passage 14 between the suction port I2 and the steam separation device 4.

The ventilation passage 14 is provided vertically penetrating the drying chamber l, and has a suction port 12 at the upper end. It has a discharge port 13 at the lower end.

The blowing means 15 is a pressure reducing device 17 provided in the ventilation passage 14 below the water vapor separator 4 (on the downstream side in the blowing direction). The pressure reducing device 17 consists of a vacuum pump and the like.

The preheating heat exchanger 16 is provided in the ventilation passage 14 above the steam separator 4 (on the upper side in the air blowing direction), and converts the air in the ventilation passage 14 sent to the steam separator 4 into the air in the drying chamber 1. Preheat to . The rest of the structure is the same as that of the embodiment shown in FIG. 1, so the same parts are given the same reference numerals and the explanation will be omitted.

According to the configuration of this embodiment, the same effects as the embodiment of FIG. 1 can be obtained. Furthermore, suction ports 1 are provided at both ends of the steam separator 4.
2. A ventilation passage 14 having a discharge port 13 is provided, and the ventilation passage 14
Since the blowing means 15 for sending air to the drying chamber 1 is provided, the steam in the steam separator 4 is easily discharged to the outside of the drying chamber 1, and the efficiency of the steam separator 4 is high.

Since the preheating heat exchanger 16 that preheats the air in the ventilation passage 14 sent to the steam separator 4 is provided, the efficiency of the steam separator 4 is improved.

Since the air blowing means 15 is a pressure reducing device 17 provided in the ura air passage 14 on the downstream side in the air blowing direction of the water vapor separator 4, the water vapor partial pressure difference is increased and the efficiency of the water vapor separator 4 is improved. Further, since the blowing means 15 and the pressure reducing means are combined, efficiency is high.

Next, an embodiment of the second invention will be described based on FIG. 3. This dryer consists of a drying chamber 1 that stores the material to be dried, a heater 2 that heats the air in the drying chamber 1, a closed-loop circulation ventilation path 18 that enters and leaves the drying chamber 1, and a A cylindrical water vapor separator 1) arranged to form a part of the circulation ventilation passage 18; a water vapor separation device 4 that allows water vapor to permeate inside due to a difference in water vapor partial pressure in the 93; and a blowing means 15 provided in the circulation ventilation passage 18. and a condenser 19 which is disposed in a circulation ventilation path 18 outside the drying chamber 1 and condenses water vapor due to the temperature difference inside and outside the drying chamber 1.

In the figure, the circulation ventilation path 18 exits from the upper part of the back surface of the drying chamber 1 and enters the inside of the drying chamber 1 from the lower part of the back surface. The circulation ventilation channel is filled with air or other gas (nitrogen gas, etc.) within one day. A preheating heat exchanger 16. A water vapor separator 4 and a blower means 15 are provided in this order. A condenser 19 and a water storage tank 20 are provided above and below in the circulation air passage 18 outside the drying chamber 1. The air blowing means 15 is connected to the water vapor separator 4
This is a pressure reducing device 17 provided in the circulation ventilation passage 18 above (downward side in the air blowing direction). The pressure reducing device 17 consists of a vacuum pump and the like.

The gas in the circulation ventilation path 18 is passed through the water vapor separator 4° and the blower means 15. Condenser 19. It circulates in the order of the preheating heat exchanger 16 and the water vapor separation membrane W4 again.

The rest of the structure is the same as that of the embodiment of FIG. 2 of the first invention, so the same parts are given the same reference numerals and the explanation will be omitted.

According to the configuration of this embodiment, a closed-loop circulation air passage 18 that enters and leaves the drying chamber 1 is provided, and within this circulation air passage 18 there is provided a water vapor separator 4. Since the condenser 19 and the blower means 15 are provided, the water vapor in the drying chamber 1 is absorbed by the gas in the circulation ventilation path 18 from the water vapor separator 4 and condensed in the condenser 19, resulting in a gas with a lower water vapor partial pressure. is again sent to the steam separator 4 by the blowing means 15.

In this way, since the water vapor is collected by the water vapor separator 4 and then cooled by the condenser 19, efficient cooling can be performed and the energy required for cooling can be saved. therefore,
An energy-saving dryer with low running costs can be realized.

In addition, since the gas in the closed loop ventilation passage 18 circulates and removes water vapor from the drying chamber 1, no water vapor is released into the space around the drying chamber 1.

Note that the condensed water is stored in the water tank 20.

Furthermore, since the preheating heat exchanger 16 is provided, the efficiency of the steam separation device 4 is improved.

Since the air blowing means 15 is a pressure reducing device 17 provided in the circulation air passage 18 on the downstream side in the air blowing direction of the water vapor separation device 4, the water vapor partial pressure difference increases and the efficiency of the water vapor partial pressure difference 4 is improved.

In addition, since the blowing means 15 and pressure reduction means are combined,
Good efficiency.

In the embodiment shown in FIG. 1, the water vapor separation membrane 3 of the water vapor separation device 4 may have a flat plate shape. The pressure reducing means IO may be a fan that sends air along the outer surface of the drying chamber 1 of the water vapor separation membrane 3.

In the embodiments shown in FIGS. 2 and 3, the blowing means 15 may be a fan.

〔Effect of the invention〕

According to the dryer of the first aspect of the invention, since the heater is provided to heat the air in the drying chamber, the moisture of the material to be dried is efficiently evaporated and the partial pressure of water vapor in the drying chamber is increased. Since a water vapor separation device having a water vapor separation membrane that allows water vapor to pass through due to the difference in water vapor partial pressure on both sides is provided, the water vapor in the drying chamber passes through the water vapor separation membrane and exits to the outside of the drying chamber.

In this way, unlike dehumidifying the air by cooling it below the dew point and causing dew condensation, no cooling is required, so the total energy required for this cooling can be saved.

Therefore, an energy-saving dryer with low running costs can be realized.

According to the dryer of the second invention, a closed-loop circulation air passage that goes in and out of the drying chamber is provided, and water vapor is contained in the circulation air passage.
Since the equipment, condenser, and blowing means are installed, the water vapor in the drying chamber is absorbed by the gas in the circulation ventilation path from the water vapor separator and condensed in the condenser, and the gas with a lower water vapor partial pressure is converted into water vapor by the blowing means. Sent again to the separation device.

In this way, since the water vapor is collected by the water vapor separator and then cooled by the condenser, efficient cooling can be performed and the energy required for cooling can be saved.

Therefore, an energy-saving dryer with low running costs can be realized.

In addition, since the gas in the closed loop ventilation passage circulates and removes water vapor from the drying chamber, no water vapor is released into the space around the drying chamber.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the first invention, FIG. 2 is an overall configuration diagram of another embodiment of the first invention, and FIG. 3 is an overall configuration diagram of an embodiment of the second invention. FIG. 4 is an overall configuration diagram of a conventional example. ■... Drying chamber, 2... Heater, 3... Water vapor separation membrane, 4... Water vapor partial pressure differential, 10... Pressure reduction means, 1
4... Ventilation duct, 15... Ventilation means, 18... Circulating ventilation duct, 19... Condenser II EP 2'Egi Fig. 1 Fig. 2 Fig. 3 @ Fig. 4 Procedure master Author: Imported and distributed on April 10, 1986.

Claims (6)

[Claims] (1) It has a drying chamber that stores the material to be dried, a heater that heats the air in the drying chamber, and a water vapor separation membrane that partitions the inside and outside of the drying room and allows water vapor to pass through due to the difference in water vapor partial pressure on both sides. A dryer equipped with a water vapor separator. (2) The dryer according to claim (1), further comprising a pressure reducing means for reducing the pressure on the outside of the drying chamber of the water vapor separation membrane of the water vapor separation device. (3) The water vapor separation membrane of the water vapor separation device is formed into a cylindrical ventilation passage, an inlet and an outlet communicating with the outside of the drying chamber are provided at both ends of the ventilation passage, and a blowing means is provided to send air to the ventilation passage. A dryer according to claim (1). (4) The dryer according to claim (3), wherein the air blowing means is a pressure reducing device provided in the air passage on the downstream side of the water vapor separator in the air blowing direction. (5) A drying chamber that stores the material to be dried, a heater that heats the air in the drying chamber, a closed loop circulation ventilation path that enters and exits the drying chamber, and a part of the circulation ventilation path that is disposed within the drying chamber. a water vapor separation device that uses a cylindrical water vapor separation membrane to permeate water vapor into the interior due to a difference in water vapor partial pressure; a blowing means provided in the circulation ventilation path; and a condenser that condenses water vapor using a temperature difference between the outside and outside of the drying chamber. (6) The dryer according to claim (5), wherein the air blowing means is a pressure reducing device provided in the circulation ventilation path on the downstream side of the water vapor separation device in the air blowing direction.