JP2000329376A - Air circulation system, drying system and air-conditioning system employing it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an air circulation system clothing drying system or air- conditioning system in which dust capturing capacity is enhanced while reducing the size. SOLUTION: A cyclon dust collector X is provided in a drying cycle channel A connecting the inlet and outlet of a drying drum 11. The cyclon dust collector X comprises a cyclon container body, clean gas discharging section 2, an introducing section 3 of gas to be processed interconnecting in the tangential direction, and a dust containing liquid discharging section and feeds a cooling fluid to the cyclon container body. The gas to be processed is swirled in the cyclon container body and the cooling fluid is fluidized in order to enlarge the heat exchanging area thereof thus enhancing heat exchanging efficiency and dust collecting capacity. Since the dust removing section and the gas-liquid separating section are located collectively, size of the system can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a process for producing air for drying or air conditioning, and a processing target space for drying clothes or air conditioning. Involved in an air circulation system in which a cyclone-type dust collector is interposed in the cycle flow path, which is connected through a cycle flow path that circulates and flows the gas to be treated, and in particular, improves dust collection capacity and reduces size. It relates to the technology for achieving conversion. The air circulation system targeted by the present invention is suitable mainly for a rotating drum type clothes dryer, a fixed type clothes dryer, an air conditioner, and a vacuum cleaner, but is limited to such a thing. It is not necessary to perform the process, and the present invention can be applied to any device or apparatus for removing dust from gas (process target gas) including air containing dust.

[0002]

2. Description of the Related Art (1) In a conventional integrated type washing machine, there is a direct contact water cooling system which is one of methods for collecting lint, fiber dust and the like generated in a drying process. In this method, the air flow and the water flow in the heat exchanger are made to be counter flows,
At the same time as heat exchange, dust in the air is taken into the water stream to remove dust. In this case, no filtration filter is used.

[0003] (2) JP-A-5-200185 discloses that
The following technologies are presented for washing and drying machines. In order to eliminate the problem that the lint filter gets wet and the drying efficiency is reduced, lint collected by drying during washing is reattached to the clothes, and the lint filter cannot be maintained unless the clothes are taken out. A detachable lint filter is arranged at an appropriate position.

(3) JP-A-8-243292 discloses that
The following technologies are presented for washing and drying machines. Dust such as lint generated during drying is collected by a filter.
Dust such as lint adheres to the inside of the filter. At the time of washing, the water pumped up by the pump is jetted in the opposite direction to the filter, and the dust such as lint adhering to the filter is separated (backwashed) from the filter, and the water is removed between the water tank and the dewatering tank. Wash off. Therefore, cleaning is not required,
Since there is no clogging of the filter, the drying efficiency can be increased.

(4) On the other hand, in an air conditioner, a filter having a mesh structure is generally provided at a suction port of an indoor unit, and the filter removes dust and dirt from air for air conditioning.

(5) JP-A-5-293323 discloses that
The following technologies are proposed for the air cleaning device. The contaminated air is branched and one is heated to high-temperature and high-humidity air, and the other is cooled to low-temperature and high-humidity air. Then, in the mixer, the high-temperature and high-humidity air and the low-temperature and high-humidity air collide with each other in a counterflow, and condensate contained in the air is used as nuclei to cause water vapor to condense, thereby generating water droplets. Bloat. These water droplets adsorb contaminants contained in the air. The water droplets adsorbing the contaminants are removed with a filter, impinger, cyclone or the like.

In the technique disclosed in Japanese Patent Application Laid-Open No. 5-293323, the location where water droplets are generated by nuclear condensation of water vapor is different from the location where the water droplets are removed, and there is a problem that the apparatus becomes large.

(6) Japanese Utility Model Laid-Open No. 5-88645 has been proposed to solve the above-mentioned problem of enlargement. The device for separating and removing fine particles disclosed in this publication,
This is for removing fine particles contained in the air in equipment requiring air purification such as a clean room. In this fine particle separation and removal apparatus, a low-temperature and high-humidity air introduction pipe connected in a tangential direction to an upper part of a cylindrical cyclone container main body is connected, and a high-temperature and high-humidity air introduction pipe connected in a tangential direction to the cyclone container main body below the cylindrical cyclone container main body. Concatenated,
A clean air discharge pipe is provided in the center of the cyclone container main body along the axial direction, and a condensed water drop discharge pipe is formed at a lower end of the cyclone container main body. The low-temperature and high-humidity air containing the fine particles flows into the cyclone container body from the upper low-temperature and high-humidity air introduction pipe, and the high-temperature and high-humidity air containing the fine particles flows into the cyclone container main body from the lower high-temperature and high-humidity air introduction pipe. Let it flow in. The low-temperature and high-humidity air and the high-temperature and high-humidity air turn in the same direction in the cyclone container body. The low temperature and high humidity air turns while descending, and the high temperature and high humidity air turns while rising. While low-temperature high-humidity air and high-temperature high-humidity air meet on the way, and swirl with adiabatic mixing, nuclear condensation of water vapor occurs with fine particles as nuclei, and condensed water droplets grow and grow. The centrifugal force accompanying the swirl acts on the condensed water droplets that have become larger, and the condensed water droplets move radially outward due to the centrifugal force, collide with the inner peripheral wall surface of the cyclone container body and are captured, and along the inner peripheral wall surface And descends to the outside through the condensed water discharge pipe. On the other hand, clean low-humidity air from which fine particles and water vapor have been removed flows out to the next stage from the clean air discharge pipe.

[0009]

In the method of (1), in which dust is removed in the heat exchanger by using an air flow and a water flow as opposed flows, the contact between the air flow and the water flow is made linearly. Due to the small area, both heat exchange efficiency and dust collection efficiency are low. In order to have the required capacity, it is necessary to increase the size of the heat exchanger, but this increases the size of the entire equipment.

The distribution of the number of particles generated in the process of drying a cotton cloth as an actual garment, especially the fine particles of 1 to 25 μm, was measured in units of 5 μm using the flow rate as a parameter. In the experiment, an actual dryer was used, and measurement was performed in a process of drying 3 kg of a cotton cloth (at the time of drying). Figure 1 shows the results.
6 is shown. The numerical value of 1.72 is the flow rate (m ³ / min)
And N is the number of samples. Fine particles of 1 to 5 μm have an occurrence frequency of 50 to 80%, and 1 to 10 μm have a frequency of 90%.
% Occurrence frequency.

[0011] In an air cycle type dryer having a precision machine in the drying cycle, there is a possibility that a defect may occur in the rotating part due to dust entering the bearings of the rotating part.
It is necessary to collect 100% of dust of at least about 10 μm.

However, it is impossible to collect 100% of fine particles of about 10 μm only by a regenerative filtration filter. By the way, in the case of using a filtration type filter PS600 of the highest performance which can be recycled by washing with water, the trapping ability is about 80% for particles of 10 μm and 10 μm.
It was impossible to collect 100% of the particles.

The size of the dust that can be collected by the filtration filter depends on the fineness of the filter. However, it is inevitable that the pressure loss increases with the improvement of the collecting capacity.

Then, the pressure loss increases with an increase in the collection amount (elapse of the drying time) (see the solid line in FIG. 7). When the pressure loss increases, the operation efficiency of the device decreases and the power consumption of the power source increases.

From the above, it is difficult to improve the trapping capacity and reduce the pressure loss when the filter of the type (3) is used.

Considering resource saving, it is more desirable to recycle the filter than to dispose it. However, if the filter is to be regenerated, the maintenance of the filter becomes a burden on the user, and it is troublesome to remove and clean the filter.

Regarding the air conditioner of the above (4), since a cross-flow fan is used for the indoor unit, the suction port is widened, and the filtration type filter can be arranged in a wide area, so that the pressure loss should be kept low. Is possible.

[0018] However, in an air cycle type or duct type (air pipe type) air conditioner, a pipe in an air circulation path connecting the equipment and the space to be conditioned is elongated in a pipe shape, so that dust discharged from the space to be conditioned is piped. Must be removed within.
Therefore, it is difficult to arrange a filtration filter having a large area. Placing a high-performance filter in a pipe increases the pressure loss and makes maintenance very difficult.

Next, the above-mentioned JP-A-5-2933 of (5) is used.
In the case of the air cleaning device disclosed in Japanese Patent Publication No. 23, for nuclear condensation,
Both the high-temperature and high-humidity air introduced from above and the low-temperature and high-humidity air introduced from below are made into a linear flow, and they collide with each other in the opposite flow. In order to exert the above, it is inevitable that the apparatus is enlarged. In addition, the dust removing part and the gas-liquid separating part are different, and in that sense, the size is also increased.

[0020] On the other hand, in the above-mentioned (6), Japanese Utility Model Laid-Open No.
The particle separation and removal apparatus disclosed in Japanese Patent Application Laid-Open Publication No. H11-27138 introduces a high-temperature, high-humidity air and a low-temperature, high-humidity air into a high-temperature, high-humidity air introduction pipe and a low-temperature, high-humidity air introduction pipe of a cyclone container body, respectively. It is necessary to divide the air discharged from the diverter by a distributor, to guide one of the air to a warming humidifier for high-temperature and high-humidity air, and to direct the other to a cooler for low-temperature and high-humidity air. In this case, a distributor, a warming humidifier, a cooler, and a pipe for connecting and connecting them are required, which greatly complicates the structure.

Further, since the swirling flow of the low-temperature and high-humidity air from above and the swirling flow of the high-temperature and high-humidity air from below are mixed in the cyclone container body of (6), the swirling downward and the rising A collision with the turn will be caused,
As a result, a smooth swirling flow is disturbed. Even if condensed water droplets grow due to the condensation of water vapor with fine particles as cores by adiabatic mixing, the swirling flow is disturbed, making the centrifugal separation action uncertain, and the inner peripheral wall of the cyclone container body of condensed water droplets Insufficient capture due to collision with That is, there is a problem that the dust collecting ability is not sufficiently exhibited.

In particular, the introduction of low-temperature, high-temperature, high-humidity air from below has the following problems. Since the high-temperature and high-humidity air inlet is located at the bottom and the low-temperature and high-humidity air inlet is located at the top, dust contained in the high-temperature and high-humidity air introduced from the lower inlet is centrifuged. In order to receive the satisfactorily collected water, the cyclone container body becomes large in order to secure the number of rotations.

The present invention has been made to solve the above-mentioned problems, and has as its object to improve the dust collecting capability and reduce the size.

[0024]

The air circulation system according to the first aspect of the present invention, which is intended to solve the above-mentioned problems, has the following configuration. That is, a processing target space such as a drying operation space or an air-conditioned space and a processing function unit that generates a processing target gas such as drying air or air conditioning air are connected via a cycle flow path that circulates and flows the processing target gas. Further, it is premised on a configuration of an air circulation system in which a cyclone type dust collector is interposed in the cycle flow path. The cyclone type dust collector is equipped with a device configured to simultaneously perform dust removal and gas-liquid separation on a gas to be treated by flowing a cooling fluid. According to this configuration, the following operation is provided. In other words, while the gas to be treated flowing in the cyclone type dust collector is swirling, the cooling fluid is caused to flow and is brought into contact with the gas. The contact area with the gas increases, the heat exchange efficiency increases, and the gas-liquid separation action improves. At the same time, the dust collecting ability is improved. Since the dust removing portion and the gas-liquid separating portion are the same, the size of the apparatus can be reduced.

The air circulation system according to claim 2 of the present invention has the following configuration. That is, the space to be processed and the processing function unit are connected via a cycle channel that circulates and flows the gas to be processed, and the configuration of an air circulation system in which a cyclone type dust collector is interposed in the cycle channel. It is assumed. And, as the cyclone type dust collector, a first gas-to-be-treated portion located at a higher position for introducing a gas-containing high-temperature and high-humidity gas containing dust, and a low-temperature and high-humidity gas containing little dust. The apparatus is provided with a second gas introduction section located at a lower level for introducing the gas to be treated. According to this configuration, the following operation is provided. That is, in order to collect dust and water droplets contained in the gas to be treated, both dust and water droplets need to collide with the inner peripheral wall of the cyclone dust collector while the gas to be treated is swirling. . However, dust is less dense than water droplets. Therefore, dust having a lower density than a water droplet needs to take a larger number of rotations than a water droplet. For that purpose, it is necessary to make the cyclone height higher for dusty high-temperature and high-humidity air. For this reason, the first method for introducing high-temperature and high-humidity air containing dust is adopted.
Is disposed at the top, and the second gas introduction section for introducing low-temperature and high-humidity air containing no dust is disposed at the bottom. High-temperature and high-humidity air containing high-density water droplets rotates more, low-temperature high-humidity air that contains high-density water droplets but does not contain low-density dust will rotate less,
Dust removal and gas-liquid separation are performed simultaneously. As a result, the heat exchange efficiency is increased and the gas-liquid separation action is improved, and at the same time, the dust collecting ability is also improved. Since the dust removing portion and the gas-liquid separating portion are the same, the size of the apparatus can be reduced.

A third aspect of the present invention relates to a drying system, wherein the processing target space is a drying action space, and a processing function unit for generating drying air is provided. Is a drying system. As a drying system, it exhibits the above-mentioned excellent functions and functions.

A fourth aspect of the present invention relates to an air conditioner system, wherein the processing target space is a space to be air-conditioned, and a processing function unit for generating air for air conditioning is provided. The air-conditioning system has the above configuration. As an air conditioning system, it exhibits the above-mentioned excellent functions and functions.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air circulation system according to the present invention will be described below in detail with reference to the drawings.

[Embodiment 1] Embodiment 1 relates to an air-circulating clothes drying system. FIG. 1 is a schematic configuration diagram of an air circulation type clothing drying system according to the first embodiment. In FIG. 1, the symbol X is a cyclone type dust collector,
10 is a flow rate adjusting means, 11 is a drying drum as a drying action space (space to be processed), 12 is a blower, 13 is a heater, A indicated by a solid arrow is a drying cycle channel, and B indicated by a dashed arrow is a liquid channel. is there. In the drying cycle channel A, the outlet of the drying drum 11 is connected to the inlet of the cyclone dust collector X, and the outlet of the cyclone dust collector X is connected to the inlet of the blower 12. The outlet of the blower 12 is connected to the inlet of the heater 13, and the outlet of the heater 13 is connected to the inlet of the drying drum 11. The blower 12 and the heater 13 constitute a processing function unit, and the processing function unit and the drying drum 11 as a drying action space are connected via a drying cycle channel A. Dust X is interposed. The gas to be processed circulating through the drying cycle channel A is air. The liquid flow path B, which is a different system from the drying cycle flow path A, is connected to a cyclone type dust collector X, and a flow rate adjusting means 10 is provided upstream of the cyclone type dust collector X. The liquid flowing through the liquid flow path B is generally water, but is not limited thereto.

FIG. 2 is a vertical sectional view showing a schematic configuration of the cyclone type dust collector X. The cyclone type dust collector X has a closed cyclone container main body (outer cylinder) 1 composed of an upper right cylindrical part 1a and a lower lower conical cylindrical part 1b, and a central part in the cyclone container main body 1. And a tangentially communicating upper part of the cyclone container main body 1 with a clean gas discharge part (inner cylinder) 2 which is arranged concentrically at the upper part of the main body 1 and extends upward through the top plate part of the main body 1. The cyclone container body 1 has a dust-containing liquid discharge section 4 formed at the lower end of the cyclone container body 1. The inner peripheral wall surfaces of the straight cylindrical portion 1a and the conical cylindrical portion 1b of the cyclone container main body 1 are smooth so as not to hinder the smooth turning of the air flow in the cyclone container main body 1.

The cyclone type dust collector X of FIG. 2 is incorporated in the drying cycle flow path A of the air circulation type clothes drying system of FIG. In the cyclone type dust collector X, the inlet of the target gas introduction unit 3 is connected to the outlet of the drying drum 11, and the outlet of the clean gas discharge unit 2 is connected to the inlet of the blower 12.

Next, the operation of the air circulation type clothes drying system of the first embodiment configured as described above will be described.

The air blown by the blower 12 is heated by the heater 13 and guided to the drying drum 11. The high-temperature air comes into contact with the clothes housed in the drying drum 11 and agitated with the rotation of the drying drum 11 to evaporate moisture from the clothes and perform a drying process on the clothes. The air containing water vapor becomes high-temperature, high-humidity air and is discharged from the drying drum 11. Dust such as lint separated from clothes in the course of the drying process is also discharged from the drying drum 11 in the high-temperature and high-humidity air.

The high-temperature and high-humidity air containing lint and other fine dust, water droplets and water vapor discharged from the drying drum 11 is supplied to the cyclone type dust collector X from the gas introduction section 3 of the cyclone type dust collector X to the cyclone container body 1. It flows inside and turns as shown by the solid arrow. The following phenomenon occurs in the cyclone type dust collector X. The cooling liquid supplied from the liquid channel B flows down on the inner peripheral wall surface of the cyclone container body 1.
The swirling high-temperature and high-humidity air and the cooling liquid flowing down come into direct contact with each other, and heat exchange is performed between the two. The water vapor contained in the swirling high-temperature and high-humidity air is condensed to form water droplets. The air is cooled by heat exchange and has a low humidity due to condensation of water vapor. The condensed water adsorbs and collects fine dust in the swirling air flow including water droplets. In addition, the cooling liquid that flows down adsorbs and collects both fine and large dust. Dust and water droplets contained in the swirling air collide with the inner peripheral wall surface of the cyclone container body 1 by centrifugal separation. A part of the cooling liquid flowing down also collides with the inner peripheral wall surface of the cyclone container main body 1 by centrifugal force, and flows down the inner peripheral wall surface. On the inner peripheral wall surface of the cyclone container main body 1, dust and water droplets in the swirling air flow are absorbed by the cooling liquid flowing down, and travel along the inner peripheral wall surface of the cyclone container main body 1 together with the liquid. 4 and is discharged out of the system of the drying cycle channel A. The flow of the liquid flowing down the inner peripheral wall surface of the cyclone container main body 1 is indicated by a broken arrow.

As described above, the high-temperature, high-humidity air containing dust introduced from the drying drum 11 is removed into a clean low-humidity air by removing steam, lint, and other fine dust.
The gas is discharged from the clean gas discharge unit 2 and sent to the blower 4.

FIG. 3A shows a state of a swirling flow p of high-temperature and high-humidity air swirling in the cyclone container main body 1 and a state of a cooling liquid flow q flowing down in the cyclone container main body 1. For comparison, FIG. 3B shows the state of the straight air flow p 'and the flowing liquid flow q in the case of the prior art. The contact area of the swirling air flow p with respect to the cooling liquid flow q flowing down in the constant path is sufficiently larger than the contact area of the parallel countercurrent linear air flow p ′ with the flowing liquid flow q in the constant path as in the prior art. Big.

Therefore, in the air circulation type clothes drying system according to the first embodiment, the heat exchange efficiency is increased, and the dehumidification efficiency is improved. At the same time, the dust collecting ability is improved.
In this case, since the dust removing portion and the gas-liquid separating portion are the same, and the dust collecting ability is improved, the size of the device can be reduced.

[Embodiment 2] Embodiment 2 relates to another aspect of the configuration of the cyclone type dust collector X, in which a cooling fluid flow path is added. FIG. 4 is a schematic configuration diagram of a cyclone type dust collector X according to the second embodiment. The same reference numerals as in FIG. 2 for the first embodiment indicate the same components in FIG. 4 for the second embodiment. Briefly, 1 is a cyclone container main body, and 1a is a straight cylindrical portion. 1b is a conical cylinder, 2
Is a clean gas discharge section, 3 is a gas to be treated introduction section, and 4 is a dust-containing liquid discharge section, and their connection relationship is also as described above, so that detailed description is omitted here. The overall configuration of the air circulation type clothes drying system is shown in FIG.
Is the same as in the first embodiment shown in FIG. Items that have been described in the first embodiment and that are not described again in the second embodiment also apply to the second embodiment as they are, and a detailed description thereof will be omitted.

The specific configuration of the second embodiment is as follows. The cooling fluid channel 14 is provided inside the cyclone container main body 1 of the cyclone type dust collector X. The cooling fluid flow path 14 may have any structure that does not hinder the swirling of the high-temperature and high-humidity air inside the cyclone container main body 1. For example, a spiral metal thin tube as illustrated may be used. . The metal thin tube may be arranged in any way with respect to the inner peripheral wall surface of the cyclone container main body 1. For example,
A zigzag shape may be used instead of the spiral shape. Inside the metal tube,
A cooling medium such as water, brine, a refrigerant, or a heat storage agent flows. The temperature of the cooling medium is set below the dew point so as to condense the water vapor in the high-temperature, high-humidity air.

The high-temperature, high-humidity air that has flowed into the cyclone container body 1 comes into contact with the thin metal tube of the cooling fluid flow path 14 and is cooled by heat exchange, and nuclear condensation of water vapor is performed using dust contained in the air as nuclei. Occurs and condensed water droplets are generated. The dust that causes nuclear condensation is fine particles, and therefore, fine dust is also captured. The condensed water droplets collide with the inner peripheral wall surface of the cyclone container main body 1 due to the centrifugal force of the swirling air flow. Further, the water vapor contained in the high-temperature and high-humidity air is condensed by direct cooling by contact with the metal thin tube of the cooling fluid flow path 14 to form dew water. The dew condensation adsorbs and collects the dust contained in the high-temperature and high-humidity air swirling around. Further, the dew water is separated from the metal tube by the swirling air flow, swirls together with the swirling air flow, and collides with the inner peripheral wall surface of the cyclone container body 1 by the centrifugal force to form a liquid film. And
For the liquid film formed in this way, the first embodiment
The dust of the swirling air flow is taken in by the same operation as in the case of (1). The water forming the liquid film flows down the inner peripheral wall surface of the cyclone container main body 1 by gravity, and the dust-containing liquid discharging portion 4
From the system.

The same effect as that of the first embodiment can be obtained in the air circulation type clothes drying system using the cyclone dust collector X of the second embodiment. More specifically, since the active cooling increases the dehumidifying efficiency and the dust collecting capability, the size of the apparatus can be further reduced.

[Third Embodiment] A third embodiment relates to an air-cycle type clothes drying system having a refrigeration cycle. FIG. 5 is a schematic configuration diagram of an air cycle type clothes drying system according to the third embodiment. In FIG.
X is a cyclone type dust collector, 20 is a flow rate adjusting means,
21 is a water storage tank, 22 is a drying space (air-conditioned space)
Drum, 23 a compressor, 24 an expansion turbine, 25 a motor, 26 a reheat heat exchanger, 27a, 2
7b is a first and second gas-liquid separator, A indicated by a solid arrow
Is a drying cycle channel, and B shown by a broken arrow is a liquid channel. The compressor 23 and the expansion turbine 24 share a common motor 2
5 is driven. In the drying cycle channel A, the outlet of the drying drum 22 is connected to the inlet of the cyclone type dust collector X, that is, the gas introduction part 3 to be treated, and the outlet of the cyclone type dust collector X, ie, the clean gas discharge part 2 is connected. Connected to the inlet of the compressor 23,
Is connected to the inlet of the reheat type heat exchanger 26, the outlet of the reheat type heat exchanger 26 is connected to the inlet of the first gas-liquid separator 27a, and the first gas-liquid separation is performed. The outlet of the vessel 27a is connected to the inlet of the expansion turbine 24, and the expansion turbine 2
4 is connected to the inlet of the second gas-liquid separator 27b, the outlet of the second gas-liquid separator 27b is connected to the other inlet of the reheat type heat exchanger 26, Heat type heat exchanger 2
The other outlet 6 is connected to the inlet of the drying drum 22. The compressor 23, the expansion turbine 24, the reheat-type heat exchanger 26, the first gas-liquid separator 27a and the second gas-liquid separator 27b constitute a processing function unit, and the processing function unit and the drying action space Is connected via a drying cycle channel A, and a cyclone type dust collector X is interposed in the drying cycle channel A. The gas to be circulated in the drying cycle channel A is air. The liquid outlets of the gas-liquid separators 27a and 27b are connected to the inlet of the water storage tank 21 in the liquid flow path B, and the outlet of the water storage tank 21 communicates with the cyclone type dust collector X via the flow rate adjusting means 20. Have been.

As the cyclone type dust collector X, one having the structure shown in FIG. 2 of the first embodiment or one having the structure shown in FIG.
For example, the configuration shown in FIG.

Next, the operation of the air cycle type clothes drying system according to the third embodiment configured as described above will be described.

The high-temperature air heated by the heat exchange in the reheat type heat exchanger 26 is guided to the drying drum 22, and the high-temperature air comes into contact with the agitated clothes as the drying drum 22 rotates. Evaporates moisture from clothing,
Dry the clothes. The air containing water vapor becomes high-temperature, high-humidity air and is discharged from the drying drum 22.
Dust such as lint separated from clothes in the course of the drying process is also included in the high-temperature and high-humidity air, is discharged from the drying drum 22, and is guided to the cyclone type dust collector X. Cyclone type dust collector X
The operation at will be described later. The high-temperature air flowing out of the cyclone type dust collector X is guided to the compressor 23, adiabatically compressed into high-temperature high-pressure air, and guided to the reheat-type heat exchanger 26. In the reheat heat exchanger 26, heat exchange between high-temperature and high-pressure air from the compressor 23 and low-temperature and normal-pressure air from the expansion turbine 24 is performed. The high-temperature and high-pressure air from the compressor 23 is cooled by this heat exchange to have a temperature equal to or lower than the dew point, and the water vapor contained therein is condensed to form water droplets.
The air containing the condensed water droplets is guided to the first gas-liquid separator 27a, where the condensed water droplets are removed. The separated condensed water droplets are guided to the water storage tank 21 by the liquid flow path B. The air from which the condensed water droplets have been removed is guided to the expansion turbine 24 and becomes low-temperature normal-pressure air. The air temperature falls again below the dew-point temperature, and the water vapor contained therein is condensed to become water droplets. The air containing the condensed water droplets is guided to the second gas-liquid separator 27b, where the condensed water droplets are removed. The separated condensed water droplets are guided to the water storage tank 21 by the liquid flow path B. The air which has become sufficiently low in humidity by removing the condensed water droplets is led to a reheat type heat exchanger 26, where it is heated up by heat exchange with high temperature and high pressure air from a compressor 23, and then to a drying drum 22. It is led.

First and second gas-liquid separators 27a, 27
The condensed water droplet separated in b is introduced into the water storage tank 21,
The water in the water storage tank 21 is guided to the cyclone type dust collector X in a state where the flow rate is adjusted by the flow rate adjusting means 20, and flows down while forming a liquid film on the inner peripheral wall surface of the cyclone container body 1. Then, high-temperature, high-humidity air containing dust from the drying drum 22 flows into the cyclone container main body 1 from the gas introduction section 3 tangentially connected to the cyclone container main body 1 and turns. Dust contained in the swirling airflow is adsorbed and collected by the liquid film, and is discharged out of the system from the lower dust-containing liquid discharge unit 4. The air purified in the cyclone type dust collector X is discharged from the clean gas discharge unit 2 and sent to the compressor 23. Other operations are the same as those in the first embodiment, and a description thereof will not be repeated.

After the drying operation is completed, the flow rate is increased by operating the flow rate adjusting means 20 and supplied to the cyclone type dust collector X, so that a large amount of liquid flows down on the inner peripheral wall surface of the cyclone container body 1. The inner peripheral wall surface can be cleaned.

As described above, since the condensed water or drain water obtained in the air cycle itself is used for the liquid flowing down in the cyclone type dust collector X, the liquid is always replenished from the outside. The running cost can be reduced as compared with the case, and the piping system can be omitted.

The temperature of the air flowing out of the expansion turbine 24 is the lowest in the cycle. Therefore, the second gas-liquid separator 2 is separated from the air flowing out of the expansion turbine 24.
If the capacity of the expansion turbine 24 is increased so that the amount supplied to the cyclone type dust collector X can be covered only by collecting the condensed water droplets in 7b, the first gas on the inlet side of the expansion turbine 24 can be increased. The liquid separator 27a can be omitted.

Further, in a refrigeration cycle of an air cycle system, it is well known that a cold heat source can be obtained by the cycle itself. However, the cold heat source is used as a cooling means for a swirling air flow in the cyclone container main body 1. It is also possible.

The above can be summarized as follows. By equipping the cyclone type dust collector X,
Lint and other fine dust almost 1 without re-scattering
00% can be collected. That is, a dramatic improvement in the dust collecting ability is observed without increasing the pressure loss. Furthermore, since the inside of the cyclone type dust collector X can be cleaned by running water from above, maintenance can be maintenance-free or simplified.

In the air-cycle type clothes drying system using the refrigerating cycle shown in FIG. 5, it is assumed that the cyclone type dust collector X having the configuration of FIG. 2 of the first embodiment is used as the cyclone type dust collector X. . In this case, the following phenomenon occurs in the cyclone type dust collector X. The swirling high-temperature and high-humidity air and the flowing liquid are in direct contact with each other, and heat exchange is performed between them. The water vapor contained in the swirling high-temperature and high-humidity air is condensed to form water droplets. The air is cooled by heat exchange and has a low humidity due to condensation of water vapor. The condensed water adsorbs and collects fine dust in the swirling air flow including water droplets. In addition, the flowing liquid adsorbs and collects both fine and large dust. Dust and water droplets contained in the swirling air collide with the inner peripheral wall surface of the cyclone container body 1 by centrifugal separation. A part of the flowing liquid also collides with the inner peripheral wall surface of the cyclone container main body 1 due to the centrifugal force and flows down the inner peripheral wall surface. Dust and water droplets in the swirling airflow are absorbed by the liquid flowing down on the inner peripheral wall surface of the cyclone container main body 1 and dried along with the liquid along the inner peripheral wall surface of the cyclone container main body 1 from the dust-containing liquid discharge section 4. It is discharged out of the system of the cycle channel A.

As described above, the high-temperature and high-humidity air containing dust introduced from the drying drum 22 is removed from the clean gas discharge unit 2 by removing steam, lint, and other fine dust. It is discharged and sent to the compressor 23.

After the drying operation is completed, the flow rate is increased by operating the flow rate adjusting means 2 and supplied into the cyclone type dust collector X, so that a large amount of liquid flows down on the inner peripheral wall surface of the cyclone container body 1. The inner peripheral wall surface of the cyclone container main body 1 can be cleaned.

When air containing cotton dust is caused to flow into the cyclone dust collector at a flow rate of 1 m ³ / min, the cyclone dust collector is designed such that the minimum particle diameter of cotton dust that can be completely separated is about 10 μm. X was designed. Cyclone type dust collector X
Is a type that connects to a pipe diameter of 30 mm and has a total height of 280
mm. FIG. 6 shows the relationship between the flow rate of high-temperature and high-humidity air, the minimum particle size of cotton dust that can be collected, and the pressure loss of the prototype. The characteristics of the cotton minimum particle diameter are indicated by broken lines, and the pressure loss is indicated by solid lines. When the flow rate of air is 1 m ³ / min, the minimum particle diameter of cotton dust that can be completely separated is about 10 μm, and the pressure loss at that time is about 2300 Pa (Pascal).

Then, the collection capacity of the cyclone type dust collector and the collection capacity of the filtration type filter were compared. As the filtration type filter, the highest performance filter PS600 which can be recycled by water washing was used. As for the filtration type filter, the trapping ability was about 80% for particles of 10 μm, and it was impossible to collect 100% of particles of 10 μm. On the other hand, according to the cyclone type dust collector, 100% of particles of 10 μm can be collected.

The relationship between the amount of collected dust and the pressure loss in the case of the third embodiment using the cyclone type dust collector X is shown by a broken line in FIG. The characteristics of the filtration filter are shown by solid lines. The filtration type filter has a pipe diameter of 50 mm. In the case of the filtration type filter, the pressure loss increases as the trapping amount increases. On the other hand, in the case of the cyclone type dust collector X, it was found that the pressure loss was kept constant irrespective of the increase of the trapping amount.

Further, in the initial state where the trapping amount is 6 g or less, the pressure loss of the filtration type filter is smaller than that of the filtration type filter because the trapping rate of 10 μm particles is assumed to be about 80%. It's just that. If a filtration type filter having a collection rate of 100% is used as in the case of the cyclone type dust collector X, the initial pressure loss is assumed to increase from the state shown in FIG. .

From the above circumstances, it can be said that the cyclone type dust collector is superior in total in both the collecting capacity and the pressure loss.

The above can be summarized as follows. By equipping the cyclone type dust collector X,
100 lint and other fine dust without re-scattering
% Can be collected. That is, a dramatic improvement in the dust collecting ability is recognized. Furthermore, since the inside of the cyclone type dust collector X can be cleaned by the liquid flowing down from above, maintenance can be maintenance-free or simplified.

In the air-cycle-type clothes drying system according to the third embodiment, as described with reference to FIG. 3A in the first embodiment, the high-temperature, high-humidity air flowing in the cyclone type dust collector X is used. Since the cooling fluid flows and makes contact with the swirling, even if the cooling fluid flows linearly, the contact area between the swirling high-temperature and high-humidity air and the cooling fluid increases, and heat The exchange efficiency is increased, and the gas-liquid separation action is improved. At the same time, the dust collecting ability is improved. Since the dust removing portion and the gas-liquid separating portion are the same portion, the size of the apparatus can be reduced.

Embodiment 4 Embodiment 4 relates to an air cycle type air conditioner system. FIG. 8 is a schematic configuration diagram of an air cycle type air conditioner system according to Embodiment 4. In FIG. 8, the symbol X is a cyclone type dust collector, 31 is an air-conditioned space as a space to be processed, 32 is a compressor, 33 is an expansion turbine, 34 is a motor, 35 is a heat exchanger, 36 is a fan, C Is an air conditioning cycle channel.
The compressor 32 and the expansion turbine 33 are driven by a common motor 34. The fan 36 blows cooling air to the heat exchanger 35. In the air-conditioning cycle channel C, the outlet of the air-conditioned space 31 is connected to the inlet of the cyclone dust collector X, the outlet of the cyclone dust collector X is connected to the inlet of the compressor 32, The outlet of the heat exchanger 35 is connected to the inlet of the heat exchanger 35, the outlet of the heat exchanger 35 is connected to the inlet of the expansion turbine 33, and the outlet of the expansion turbine 33 is connected to the inlet of the air-conditioned space 31. Have been. Air conditioning cycle channel C
In the above, the to-be-processed gas introduction part 3 of the cyclone type dust collector X is connected to the end of the air conveying pipe extending from the outlet of the air-conditioned space 31, and is extended from the inlet of the compressor 32. The clean gas discharge part 2 of the cyclone type dust collector X is connected to the end of the air conveying pipe. The compressor 32, the heat exchanger 35, and the expansion turbine 33 constitute a processing function unit, and the processing function unit and the space to be conditioned 31
, And a cyclone type dust collector X is interposed in the air-conditioning cycle flow path C. The gas to be circulated in the air conditioning cycle channel C is air.

As the cyclone type dust collector X, one having the structure shown in FIG. 2 of the first embodiment, or the one shown in FIG.
For example, the configuration shown in FIG.

Next, the operation of the air cycle type air conditioner system according to Embodiment 4 configured as described above will be described.

The air for air-conditioning including the dust discharged from the air-conditioned space 31 is guided to the cyclone type dust collector X, where the air is removed to be clean air and sent to the compressor 32. Compressor 32
Is compressed into high-temperature, high-pressure air in the heat exchanger 35.
, And is further expanded in the expansion turbine 33 to become low-temperature normal-pressure air, which is supplied to the air-conditioned space 31.

In the cyclone type dust collector X, the air-conditioning air flowing into the cyclone container body 1 from the air-conditioned space 31 via the gas-to-be-processed portion 3 is swirled, and is included in the swirling air flow by centrifugal separation. Dust collides with the inner peripheral wall surface of the cyclone container main body 1, flows down the inner peripheral wall surface by its own weight, and is discharged to the outside of the air conditioning cycle flow path C. In the case of a filtration type filter, dust is collected by the filter itself set in the air conditioning cycle channel C and stops there, so that dust accumulates and maintenance is required. On the other hand, in the case of the fourth embodiment, dust is discharged to the outside of the air-conditioning cycle channel C, so that dust is not accumulated and maintenance is easy.

As described above, since the cyclone type dust collector X has a lower pressure loss than the filtration type filter, the driving force required for circulating the air for air conditioning is reduced and the running cost is reduced.

If the liquid is caused to flow down on the inner peripheral wall surface of the cyclone container main body 1, the inner peripheral wall surface of the cyclone container main body 1 can be washed with the flowing liquid, and maintenance-free operation can be realized. When the temperature of the liquid is lowered, the liquid has a dehumidifying effect.

[Embodiment 5] FIG. 9 is a schematic configuration diagram of an air duct type air circulation type air conditioner system. In FIG. 9, X indicates a cyclone type dust collector, 41 indicates an air-conditioned space as a processing target space, 42 indicates a ventilation duct, 43 indicates a ventilation fan, 44 indicates a return duct, and 45 indicates a transport unit. E indicates a refrigeration cycle, 51 indicates a compressor, 52 indicates an accumulator, 53 indicates a four-way valve, 54 indicates an outdoor heat exchanger, 55 indicates a propeller fan, 56 indicates an expansion valve, and 57 indicates an expansion valve.
Is an indoor heat exchanger. Of these components, the part other than the air-conditioned space 41 constitutes a processing function unit, and a cyclone dust collector X is interposed in an air-conditioning cycle channel connecting the processing function unit and the air-conditioned space 41. The gas to be circulated is air.

As the cyclone type dust collector X, one having the structure shown in FIG. 2 of the first embodiment or one having the structure shown in FIG.
For example, the configuration shown in FIG.

The transport unit 4 is located at the position of the indoor heat exchanger 57.
5 is provided, and the cool air or warm air obtained in the transport unit 45 is
To the space 41 to be conditioned. Air containing dust from the conditioned space 41 is sent back to the transport unit 45 via the return duct 44.

In the cyclone type dust collector X interposed in the return duct 44, dust in the air is collected by the same operation as described above, and is discharged out of the system. Also in the fifth embodiment, as in the fourth embodiment, maintenance is easy and running costs can be reduced. Also, maintenance-free operation can be realized by flowing the liquid.

Next, a cyclone type dust collector Y provided with two gas inlets to be treated and the cyclone type dust collector Y
An air cycle type clothes drying system and an air cycle type air conditioner system using the above will be described.

[Sixth Embodiment] FIG. 10 is a schematic structural view of a cyclone type dust collector Y. The cyclone type dust collector Y is
An upper straight cylindrical portion 61a and a lower lower conical cylindrical portion 6
1b with a closed cyclone container body (outer cylinder) 61
A clean gas discharge portion (inner cylinder) 62 which is arranged concentrically above the central portion in the cyclone container main body 61 and extends upward through the top plate portion of the main body 61; First and second two target gas introduction portions (air supply cylinders) communicating tangentially in the upper part of the cyclone container main body 61.
The cyclone container body 63 includes a dust-containing liquid discharge portion 64 formed at a lower end portion of the cyclone container main body 61. The inner peripheral wall surfaces of the straight cylindrical portion 61a and the conical cylindrical portion 61b of the cyclone container main body 61 are smooth so as not to hinder the smooth turning of the air flow in the cyclone container main body 61.

The first gas introduction portion 63a and the second gas introduction portion 63b are connected to each other at an interval above and below the peripheral surface of the upper end of the cyclone container main body 61. It is assumed that high-temperature, high-humidity air is introduced into the upper first gas-to-be-processed portion 63a, and low-temperature, high-humidity air is introduced into the lower second gas-to-be-processed portion 63b. Although the first gas introduction part 63a and the second gas introduction part 63b are provided at the same position in the circumferential direction of the cyclone container main body 61, the present invention is not limited to this. However, they may be provided at different positions in the circumferential direction. However, it is necessary that the direction of the swirling flow of the high-temperature and high-humidity air be the same as the direction of the swirling flow of the low-temperature and high-humidity air. However, it does not prevent the turning flow in the reverse direction.

The first gas to be treated 63a and the second
In the case of the cyclone type dust collector Y having the target gas introduction portion 63b, high-temperature and high-humidity air containing dust having a density lower than that of water droplets enters the cyclone container main body 61 from the upper first target gas introduction portion 63a. On the other hand, the low-temperature and high-humidity air that does not include dust is introduced into the cyclone container main body 61 from the lower second gas-to-be-processed introduction portion 63b. The solid line in FIG. 11 shows the flow of high-temperature and high-humidity air, and the broken line shows the flow of low-temperature and high-humidity air. By swirling and mixing in the same direction, dust and water droplets generated by nuclear condensation are collected and collected. The clean air discharged from the contained liquid discharge part 64 is sent out from the clean gas discharge part 62 to the outside.

Here, two types of high-temperature and high-humidity air and low-temperature and high-humidity air were used.
When the fluid swirls inside the cyclone container main body 61, the number of rotations is the height a from the dust-containing liquid discharge unit 64 to the first gas-to-be-treated inlet 63a shown in FIG. It is determined by b up to the second gas introduction section 63b. In order to collect dust and water droplets contained in the air, both dust and water droplets need to collide with the inner peripheral wall surface of the cyclone container main body 61 while the air is swirling. However, dust is less dense than water droplets. Therefore, dust having a lower density than water droplets needs to have a larger number of rotations than water droplets. For that purpose, the cyclone height a is required to be higher for high-temperature, high-humidity air containing dust. For example, in the cyclone container main body 61 having a diameter of 70 mm, the size of the gas introduction part to be treated is 17.5 mm in length and 3 in width.
In the case of a cyclone type dust collector of 5 mm, when 1 m ³ / min gas is introduced into the cyclone container body, it may take 5 rotations to collect cotton dust and 0.4 rotation to collect water droplets. Has been verified.

For this reason, the first gas-to-be-treated introduction section 63a for introducing high-temperature, high-humidity air containing dust is disposed at a higher position, and is used for introducing low-temperature, high-humidity air containing no dust. The second gas introduction section 63b is disposed at the lower position. In other words, high-temperature and high-humidity air containing low-density dust and high-density water droplets is rotated more,
The low-temperature and high-humidity air that contains high-density water droplets but does not contain low-density dust is rotated with a small number of rotations, thereby simultaneously performing dust removal and gas-liquid separation.

Here, a comparison with the prior art will be described for reference. In the case of Japanese Utility Model Unexamined Publication No. Hei 5-88645, on the contrary, the introduction part for the high-temperature and high-humidity air is arranged at the lower level and the introduction part for the low-temperature and high-humidity air is arranged at the upper level. In order for dust contained in the high-temperature and high-humidity air introduced from the tank to be collected well by centrifugal separation, the size of the cyclone container body increases in order to secure the number of rotations. On the other hand, in the sixth embodiment,
Since high-temperature and high-humidity air containing dust is introduced from the upper first gas-to-be-processed introduction part 63a, the height of the cyclone container main body 61 can be reduced assuming that the same number of rotations is secured, and the entire apparatus can be manufactured. It can be downsized.

[Embodiment 7] Embodiment 7 relates to an air cycle type clothes drying system having a refrigeration cycle using a cyclone type dust collector Y having two upper and lower gas inlets to be treated. . FIG. 12 is a schematic configuration diagram of an air cycle type clothes drying system according to the seventh embodiment. In FIG. 12, the symbol Y denotes the cyclone type dust collector of FIG. 10, 72 denotes a drying drum as a drying action space (space to be processed), 73 denotes a compressor, 74 denotes an expansion turbine, 75 denotes a motor, and 76 denotes reheating. A type heat exchanger, 77 is a gas-liquid separator, F indicated by a solid line arrow is a drying cycle channel, and G indicated by a broken line arrow is a liquid channel. The compressor 73 and the expansion turbine 74 are driven by a common motor 75. Of these components, the processing function section is constituted by components other than the drying drum 72, and a cyclone dust collector Y is interposed in a drying cycle channel F connecting the processing function section and the drying drum 72. The gas to be circulated is air. In the drying cycle channel F, the outlet of the drying drum 72 is connected to the first gas-to-be-treated introduction section 63a located above the cyclone dust collector Y.
The outlet of the cyclone type dust collector Y, that is, the clean gas discharge part 62 is connected to the inlet of the compressor 73, and the outlet of the compressor 73 is connected to the inlet of the reheat type heat exchanger 76. The outlet of the reheat heat exchanger 76 is connected to the inlet of the gas-liquid separator 77, the outlet of the gas-liquid separator 77 is connected to the inlet of the expansion turbine 74, and the outlet of the expansion turbine 74 is The other outlet (not shown) of the cyclone type dust collector Y is connected to the second target gas introduction portion 63b below the cyclone type dust collector Y, and is connected to the other inlet of the reheat type heat exchanger 76. And the other outlet of the reheat type heat exchanger 76 is connected to the inlet of the drying drum 72. The liquid outlet of the gas-liquid separator 77 is connected to the cyclone type dust collector Y via the liquid flow path G. Embodiment 3
As in the case of FIG. 5, it is desirable to provide a water storage tank and a flow rate adjusting means.

As the cyclone type dust collector Y, in addition to the configuration shown in FIG. 10 of the sixth embodiment, the cyclone type dust collector having the configuration shown in FIG. A configuration may be employed.

The operation of the air cycle type clothes drying system according to the seventh embodiment configured as described above is basically as follows.
This is the same as that of the third embodiment (FIG. 5). The different operation will be described. The high-temperature and high-humidity air containing dust from the drying drum 72 is introduced into the cyclone container main body 61 from the first gas-to-be-treated portion 63a, which is higher than the cyclone dust collector Y. Is done. Further, the air flowing out of the expansion turbine 74 is clean low-temperature and high-humidity air containing no dust, and the low-temperature high-humidity air is supplied to the cyclone type dust collector Y at a lower second gas introduction portion to be treated. 63b is introduced into the cyclone container main body 61.

The high-temperature, high-humidity air containing dust from the drying drum 72 is introduced from the first gas-to-be-processed portion 63a, which is higher in the cyclone dust collector Y having two gas-to-be-processed gas introduction portions. The air that has been dust-removed and has been cleaned is discharged from the clean gas discharge unit 62 to become high-temperature and high-pressure air in the compressor 73, and cooled in the reheat heat exchanger 76 to have a dew-point temperature or lower. The air containing water droplets is subjected to removal of water droplets in the gas-liquid separator 77, becomes low-temperature normal-pressure air in the expansion turbine 74, becomes low-temperature and lower than the dew-point temperature, and contains low-temperature and high-humidity air containing condensed water again. The second gas to-be-processed introduction section 63 which is lower than the cyclone type dust collector Y having an introduction section
b, gas-liquid separation is performed, and the liquid is returned to the drying drum 72.

In the cyclone type dust collector Y, in the cyclone container main body 61, the two fluids form a swirling flow, and when moving downward, adiabatic mixing is performed, and nuclear condensation occurs. The condensed water can collect dust in the vicinity, and can also collide with the inner peripheral wall surface of the cyclone container main body 61 due to centrifugal force due to swirling, and collect dust on the inner peripheral wall surface. The condensed water containing dust flows down along the inner peripheral wall surface, and is discharged from the dust-containing liquid discharge unit 64. At this time, it is desirable to use condensed water collected by the gas-liquid separator 77 as the insufficient water. If the gas-liquid separation capacity of the cyclone type dust collector Y is sufficient, the gas-liquid separator 77 can be omitted.

As described above, in the air cycle type air conditioner system according to the seventh embodiment, the dust is collected without re-scattering in the cyclone container main body 61, and the dust collecting ability is improved. Since the inner peripheral wall of the cyclone container body 61 is further purified by running water,
Maintenance simplification or maintenance free such as dust discharge and cyclone purification can be achieved. Also, 2
Since dust removal and gas-liquid separation can be simultaneously performed in the cyclone type dust collector Y having the two gas introduction sections 63a and 63b to be processed, the necessary air filter function section and gas-liquid separation function section can be integrated. The equipment of the air cycle type clothes drying system can be reduced in size.

In particular, a first gas introduction section 63a for introducing high-temperature, high-humidity air containing dust is disposed at a higher position.
The second gas introduction portion 63b for introducing low-temperature and high-humidity air that does not contain dust is disposed at a lower position, and water droplets containing high-density dust and having low density by the first gas-introduction portion 63a are provided. By rotating the high-temperature and high-humidity air containing more, the dust collecting ability and the gas-liquid separation function are improved.

[Eighth Embodiment] An eighth embodiment relates to an air cycle type air conditioner system using a cyclone type dust collector Y having two gas introduction portions to be treated.
FIG. 13 is a schematic configuration diagram of an air cycle air conditioner system according to the eighth embodiment. In FIG. 8, reference numeral Y is a cyclone type dust collector, 81 is an air-conditioned space as a space to be treated, 82 is a compressor, 83 is an expansion turbine, 84 is a motor, 85 is a heat exchanger, 86 is a fan, H Is an air conditioning cycle channel. Elements other than the air-conditioned space 81 among the above-described components constitute a processing function unit, and a cyclone dust collector Y is interposed in an air-conditioning cycle flow path H connecting the processing function unit and the air-conditioned space 81. Is equipped. The compressor 82 and the expansion turbine 83 are driven by a common motor 84. The fan 86 sends cooling air to the heat exchanger 85. In the air-conditioning cycle flow path H, the outlet of the air-conditioned space 81 has a cyclone type dust collector Y having two gas introduction portions to be processed shown in FIG.
And the clean gas discharge unit 62 of the cyclone type dust collector Y is connected to the compressor 82
The outlet of the compressor 82 is connected to the heat exchanger 8.
5, the outlet of the heat exchanger 85 is connected to the inlet of the expansion turbine 83, and the outlet of the expansion turbine 83 is connected to the second gas introduction section below the cyclone type dust collector Y. The other outlet (not shown) of the cyclone type dust collector Y is connected to the inlet of the air-conditioned space 81. As the cyclone type dust collector Y, in addition to the configuration shown in FIG. 10 of the sixth embodiment, the configuration shown in FIG. 14 of a ninth embodiment described later, and the configuration shown in FIG. 15 of the tenth embodiment May be adopted.

Next, the operation will be described. The high-temperature and high-pressure air containing dust discharged from the air-conditioned space 81 is introduced into the cyclone container main body 61 from the upper first gas-to-be-processed portion 63a of the cyclone dust collector Y to remove dust. The air cleaned by dust removal becomes high-temperature and high-pressure air in the compressor 82, is cooled in the heat exchanger 85, and becomes low-temperature normal-pressure air in the expansion turbine 83. The high-humidity air is introduced into the cyclone container main body 61 from the lower second gas-to-be-processed introduction portion 63b in the cyclone type dust collector Y, is subjected to gas-liquid separation, and is discharged to the air-conditioned space 81.

With the above configuration, in the cyclone type dust collector Y having two gas introduction portions to be treated, the two fluids of the high-temperature and high-pressure air and the low-temperature and high-humidity air form a swirling flow. And nuclear condensation occurs. The condensed water can collect dust in the vicinity, and can also collide with the inner peripheral wall surface of the cyclone container main body 61 due to centrifugal force due to swirling, and collect dust on the inner peripheral wall surface. The condensed water containing dust flows down along the inner peripheral wall surface and is discharged from the dust-containing liquid discharge portion 64 as shown by the dashed arrow, so that the dust is collected without re-scattering, and the dust collecting capability is improved. It has the effect of improving. Furthermore, since the inner peripheral wall surface of the cyclone container main body 61 is purified by flowing water, maintenance simplification or maintenance free such as dust discharge and cyclone purification can be achieved. Further, in the cyclone type dust collector Y having two gas introduction parts to be treated, since dust removal and gas-liquid separation can be simultaneously performed, a necessary air filter device part and a gas-liquid separation function part can be integrated, The equipment of the air cycle type air conditioning system can be reduced in size.

In particular, a first gas introduction section 63a for introducing high-temperature, high-humidity air containing dust is disposed at a higher position.
The second gas introduction portion 63b for introducing low-temperature and high-humidity air that does not contain dust is disposed at a lower position, and water droplets containing high-density dust and having low density by the first gas-introduction portion 63a are provided. By rotating the high-temperature and high-humidity air containing more, the dust collecting ability and the gas-liquid separation function are improved.

[Embodiment 9] FIG. 14 is a schematic structural view of a cyclone type dust collector Y of another embodiment. In this case, one duct 63c is tangentially connected to the upper end of the cyclone container main body 61, and the inside of the duct 63c is divided into upper and lower parts by a partition plate, so that the upper first gas to be treated can be obtained. An introduction portion 63a and a lower second gas-to-be-processed introduction portion 63b are formed.

Such a cyclone type dust collector Y is applied to the air cycle type clothes drying system of the embodiment 7 (FIG. 12) or to the air cycle type air conditioner system of the embodiment 8 (FIG. 13). Therefore, the same effect as described above can be obtained.

[Embodiment 10] FIG. 15 is a schematic structural view of a cyclone type dust collector Y of still another embodiment. In this case, a cylindrical cyclone container main body 61 and a clean gas discharge portion 62 provided concentrically on the cyclone container main body 61 are provided.
And a dust-containing liquid discharge section 4 provided at the lower part of the cyclone container main body 61, and further divides one duct 63c tangentially connected to the upper end of the cyclone container main body 61 into two parts in the horizontal direction. Thereby, the first gas-to-be-treated portion 63a for introducing high-temperature and high-pressure air containing dust on the outside is formed, and the second gas for introducing clean low-temperature and high-humidity air containing no dust on the inside is formed. Is formed. The swirling flow of the high-temperature and high-pressure air containing dust introduced from the outer first gas-to-be-processed introduction portion 63a is longer than the swirling flow of clean low-temperature and high-humidity air containing no dust. .

Such a cyclone type dust collector Y is applied to the air cycle type clothes drying system of the embodiment 7 (FIG. 12) or to the air cycle type air conditioner system of the embodiment 8 (FIG. 13). Therefore, the same effect as described above can be obtained.

[0095]

According to the first aspect of the air circulation system, the cyclone type dust collector for bringing the cooling fluid into contact with the swirling gas to be processed is employed, so that the heat exchange area can be increased. As a result, the heat exchange efficiency can be increased, the gas-liquid separation action can be improved, and the dust collecting ability can be improved. Further, the dust removal portion and the gas-liquid separation portion can be made the same, thereby reducing the size of the apparatus.

According to the second aspect of the present invention, the first gas-to-be-treated introduction section for introducing high-temperature, high-humidity air containing dust is disposed at an upper position, and low-temperature, high-humidity air containing no dust is supplied. Since the second gas introduction part to be introduced for introduction is arranged at a lower position, the number of rotations of high-temperature and high-humidity air containing low-density dust and high-density water droplets is increased to remove dust and gas-liquid. The efficiency of separation can be improved, and the size of the device can be further reduced.

The present invention exerts an excellent effect particularly in a drying system or an air conditioner system of the air circulation system type.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an air circulation type clothes drying system according to a first embodiment of the present invention.

FIG. 2 is a schematic vertical sectional view of a cyclone type dust collector according to the first embodiment.

FIG. 3 is an explanatory view of the operation of the cyclone type dust collector of the first embodiment.

FIG. 4 is a schematic vertical sectional view of a cyclone type dust collector according to a second embodiment.

FIG. 5 is a schematic configuration diagram of an air cycle type clothes drying system according to a third embodiment.

FIG. 6 is a characteristic diagram showing the relationship between the air flow rate and the minimum particle size of cotton dust that can be collected in the third embodiment.

FIG. 7 is a characteristic diagram showing a relationship between a filter collection amount and a pressure loss in the third embodiment.

FIG. 8 is a schematic configuration diagram of an air cycle air conditioner system according to a fourth embodiment.

FIG. 9 is a schematic configuration diagram of an air duct type air conditioner system according to a fifth embodiment.

FIG. 10 is a schematic vertical sectional view of a cyclone type dust collector according to a sixth embodiment.

FIG. 11 is an operation explanatory view of Embodiment 6.

FIG. 12 is a schematic configuration diagram of an air cycle type clothes drying system according to a seventh embodiment.

FIG. 13 is a schematic configuration diagram of an air cycle air conditioner system according to an eighth embodiment.

FIG. 14 is a vertical sectional view of a cyclone type dust collector according to a ninth embodiment.

FIG. 15 is a horizontal sectional view of a cyclone type dust collector according to the tenth embodiment.

FIG. 16 is a characteristic diagram showing the relationship between the particle size of dust and the relative frequency.

[Explanation of symbols]

A: drying cycle channel, B: liquid channel, C: air conditioning cycle channel, E: refrigeration cycle, F: drying cycle channel, G
... liquid flow path, H ... air-conditioning cycle flow path, X ... cyclone type dust collector with one gas to be treated introduction part, Y ... cyclone type dust collector with two gas introduction parts to be treated, 1 ... cyclone container body, 1a: a straight cylindrical portion, 1b: a conical cylindrical portion, 2: a clean gas discharge portion, 3: a gas introduction portion to be treated, 4 ... a dust-containing liquid discharge portion, 1
0: flow rate adjusting means, 11: drying drum, 12: blower,
DESCRIPTION OF SYMBOLS 13 ... heater, 14 ... cooling fluid flow path, 20 ... flow rate adjustment means, 21 ... water storage tank, 22 ... drying drum, 23 ... compressor, 24 ... expansion turbine, 25 ... motor, 26 ... reheat type heat exchanger, 27a: first gas-liquid separator, 27b: second
Gas-liquid separator, 31 ... air-conditioned space, 32 ... compressor, 33
... Expansion turbine, 34 ... Motor, 35 ... Heat exchanger, 36
... Fan, 41 ... Air-conditioned space, 42 ... Blow duct, 43
... blower fan, 44 ... return duct, 45 ... transport unit, 51 ... compressor, 52 ... accumulator, 53
... four-way valve, 54 ... outdoor heat exchanger, 55 ... propeller fan, 56 ... expansion valve, 57 ... indoor heat exchanger, 61 ... cyclone container main body, 61a ... straight cylindrical part, 61b ... conical cylindrical part,
Reference numeral 62 denotes a clean gas discharge unit, 63a denotes a first gas-to-be-processed inlet for high-temperature, high-humidity air, 63b ... a second gas-to-be-processed inlet for low-temperature, high-humidity air, 64: dust-containing liquid Discharge unit, 72 ... Drying drum, 73 ... Compressor, 74 ... Expansion turbine, 75 ... Motor, 76 ... Reheat type heat exchanger, 77 ... Gas-liquid separator, 81 ... Air-conditioned space, 82 ... Compressor, 83 ... Expansion turbine, 84 ... Motor, 85 ... Heat exchanger, 86 ... Fan

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L053 BD10 4D053 AA03 AB01 BA01 BB02 BC01 BD04 CA01 CB11 CF01 DA01 4L019 BB03

Claims (4)

[Claims] 1. An air circulation system in which a processing target space and a processing function unit are connected via a cycle flow path for circulating and flowing a processing target gas, and a cyclone type dust collector is interposed in the cycle flow path. An air circulation system, wherein the cyclone type dust collector is equipped with a device configured to simultaneously perform dust removal and gas-liquid separation on a gas to be treated by flowing a cooling fluid. 2. An air circulation system in which a processing target space and a processing function unit are connected via a cycle flow path for circulating and flowing a processing target gas, and a cyclone type dust collector is interposed in the cycle flow path. A first gas introduction section positioned above for introducing a high-temperature and high-humidity gas to be treated containing dust as the cyclone type dust collector; An air circulation system, comprising: a second processing gas introduction portion positioned at a lower position for introducing a wet processing gas. 3. The space to be treated is a drying action space,
The processing function unit generates drying air,
A drying system, comprising: the drying system according to claim 1. 4. The space to be processed is a space to be air-conditioned, and the processing function unit generates air for air-conditioning, and is configured as in claim 1 or 2. And air conditioning system.