JP2001263725A - Dehumidifying system, humidifying system, and dehumidifying/humidifying system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidifying apparatus, a humidifying system, and a dehumidifying/humidifying system which does not have any possibility of a house being damaged owing to water leakage and have no need of the use of a pump for simple maintenance. SOLUTION: An evaporator 18 is provided lower than a condenser 16 of a regeneration passage 3. A refrigerant R134a is filled in a refrigerant circuit composed of the condenser 16, the evaporator 18, check valves 16, 17, and a refrigerant tank 19. The refrigerant circuit permits the refrigerant R134a to be subjected to natural circulation with the aid of a difference of heights of the condenser 16 and the evaporator 18, whereby there is eliminated water leakage without the possibility of a house being damaged and without the need of the use of a pump and the need of any maintenance with simplified inexpensive construction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a dehumidification system using a suction rotor, a humidification system, and a dehumidification system.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional dehumidifying system. In this dehumidifying system, the casing 1 is partitioned into a dehumidifying passage 2 and a regenerating passage 3 by a partition plate, and air flows in the dehumidifying passage 2 in the direction of arrow X and air flows in the regenerating passage 3 in the direction of arrow Y. ing. This dehumidifying passage 2
Each part of the rotating disk-shaped suction rotor 5 faces the regeneration passage 3 in sequence. The suction rotor 5 is
For example, an adsorbent such as silica gel, zeolite, or alumina is formed into a honeycomb shape or a porous multi-particle shape, and absorbs moisture from flowing air while releasing moisture to heated air. A heating coil 6 is provided on the upstream side of the adsorption rotor 5 in the regeneration passage 3, and each part of the rotating disk-shaped sensible heat rotor 7 is a part of the dehumidification passage 2 on the downstream side of the adsorption rotor 5. And a portion of the regeneration passage 3 on the upstream side of the heating coil 6.

The heating coil 6 has a heat exchanger 8 for water.
Is supplied by a pump 9 through a passage 10. The heat exchanger 8 is supplied with heat from a heat source 11 such as cogeneration.

The outside air OA flowing from the inlet into the dehumidifying passage 2 is dehumidified and dehumidified by adsorbing moisture by the adsorption rotor 5, and heat is deprived by the sensible heat rotor 7. The dehumidified air SA at an appropriate temperature is supplied from the outlet toward the room. On the other hand, air RA from the room flows into the regeneration passage 3 from the inlet, is preheated by the sensible heat rotor 7, and is further heated by the heating coil 6 to which hot water is supplied. With the heated air, moisture is released from the suction rotor 5 to regenerate the suction rotor 5 and discharge the air EA containing the water to the outside.

As described above, moisture is transferred from the air flowing through the dehumidifying passage 2 to the regeneration passage 3 by the moisture absorbing rotor 5, and the dehumidified air SA is supplied to the room.

[0006]

However, in the above-mentioned conventional dehumidifying system, since hot water is supplied to the heating coil 6 to heat the air in the regeneration passage 3, there is a problem that the house is damaged by water leakage.

Further, the conventional dehumidifying system has a problem that maintenance and replacement of the pump 9 are required to circulate hot water through the heating coil 6, the water heat exchanger 8 and the circulation path 10. .

It is an object of the present invention to provide a dehumidification system, a humidification system, and a dehumidification system which do not require maintenance because there is no danger of damage to a house due to water leakage. is there.

[0009]

According to a first aspect of the present invention, there is provided a dehumidification system, comprising: a regeneration passage; a dehumidification passage; and a mechanism for transferring moisture from air flowing through the dehumidification passage to air flowing through the regeneration passage. Rotor, a condenser provided upstream of the adsorption rotor in the regeneration passage, an evaporator provided below the condenser, and a circulation connecting the evaporator and the condenser. A refrigerant circuit including the condenser, the evaporator, and the circulation path, wherein one of fluorine-based refrigerant, carbon dioxide gas, or hydrocarbon-based refrigerant is provided.
It is characterized by filling one.

According to the above configuration, moisture can be transferred from the air flowing through the dehumidifying passage to the regeneration passage by the moisture absorbing rotor, and the dehumidified air can be supplied to the room from the dehumidifying passage. In the regeneration passage, moisture is released from the adsorption rotor to the air heated by the condenser, and the adsorption rotor is regenerated.

[0011] Further, the evaporator is disposed below and the condenser is disposed above, thereby forming a refrigerant circuit. In addition, one of fluorine-based refrigerant, carbon dioxide or hydrocarbon-based refrigerant is used as a refrigerant.
Since one is used, the refrigerant naturally circulates through the refrigerant circuit, and a pump is not required. Moreover, since no water is used, there is no danger of damage to the house due to water leakage.

According to a second aspect of the present invention, there is provided a humidification system comprising: a humidification passage; a humidification passage; an adsorption rotor for transferring moisture from air flowing through the humidification passage to air flowing through the humidification passage; A condenser provided on the upstream side, an evaporator provided at a position below the condenser, and a circulation path connecting the evaporator and the condenser, wherein the condenser, the evaporator, and the circulation path are provided. Is filled with one of fluorine-based refrigerant, carbon dioxide gas or hydrocarbon-based refrigerant.

According to the above configuration, moisture is transferred from the air flowing through the moisture absorption passage to the humidification passage by the adsorption rotor, and the moisture is released to the air heated by the condenser in the humidification passage. In this manner, humidified air can be supplied from the humidification passage into the room. In the moisture absorption passage, moisture is adsorbed by the adsorption rotor.

Further, the above evaporator is arranged below and the condenser is arranged above, thereby forming a refrigerant circuit. Further, one of fluorine-based refrigerant, carbon dioxide or hydrocarbon-based refrigerant is used as the refrigerant.
Since one is used, the refrigerant naturally circulates, and a pump is not required. Moreover, since no water is used, there is no danger of damage to the house due to water leakage.

According to a third aspect of the present invention, there is provided a dehumidifying / humidifying system comprising:
A humidity control passage, a second humidity control passage, and the second humidity control passage and the first humidity control passage.
An adsorption rotor for transferring moisture to and from the humidity control passage; a first condenser provided upstream of the adsorption rotor in the first humidity control passage; and an upstream of the adsorption rotor in the second humidity control passage. A second condenser provided on the side, an evaporator provided at a position lower than the first and second condensers, and a circulation path connecting the first and second condensers to the evaporator. Switching means for switching and connecting the evaporator to the first condenser or the second condenser. The refrigerant circuit including the first and second condensers, the evaporator and the circulation path includes a fluorine-based refrigerant and a carbon dioxide gas. Alternatively, one of the hydrocarbon-based refrigerants is charged.

According to the above configuration, when the switching means is switched to circulate the refrigerant between the first condenser and the evaporator and the first condenser is operated, the first humidity control passage becomes a regeneration passage,
The second humidity control passage is a dehumidification passage, and the dehumidification / humidification system performs a dehumidification operation. On the other hand, when the switching means is switched to circulate the refrigerant between the second condenser and the evaporator and the second condenser is operated, the first humidity control passage becomes a moisture absorption passage, and the second humidity control passage becomes a humidification passage. This dehumidification / humidification system performs a humidification operation.

Further, the evaporator is arranged below and the first and second condensers are arranged above to form a refrigerant circuit, and the refrigerant is a fluorine-based refrigerant, a carbon dioxide gas or a hydrocarbon-based refrigerant. Since one is used, the refrigerant naturally circulates, and a pump is not required. Moreover, since no water is used, there is no danger of damage to the house due to water leakage.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

As shown in FIG. 1, this dehumidification system
The dehumidification system shown in FIG. 4 includes a condenser 16 for gas refrigerant instead of the heating coil 6 to which hot water is supplied,
The main difference is that an evaporator 18 is used in place of the water heat exchanger 8, and the condenser 16 is arranged above and the evaporator 18 is arranged below. Therefore, the same components as those of the conventional example shown in FIG. 4 are denoted by the same reference numerals and the description thereof will be omitted, and different points will be mainly described below.

As shown in FIG. 1, the upper condenser 16
The lower evaporator 18 is connected to the lower evaporator 18 by a circulation path 15. Check valves 14 and 17 are provided in the circulation path 15, and a refrigerant tank 19 is provided between the check valves 14 and 17.

A refrigerant circuit comprising the condenser 16, the evaporator 18, the check valves 14, 17 and the refrigerant tank 19 is filled with R134a as an example of a fluorine-based refrigerant.

According to the above configuration, the R134a evaporated in the evaporator 18 rises in the circulation path 15 and enters the condenser 16 to be condensed. The liquefied R134a descends in the circulation path 15 by its own weight to open the check valve 14. And enters the refrigerant tank 19. This refrigerant tank 19 is located below the condenser 16 and the evaporator 18
R134a is located above the condenser 1
6 through the check valve 14 and smoothly into the refrigerant tank 1
9, the R134a is further smoothly returned from the refrigerant tank 19 to the evaporator 18 through the check valve 17.

As described above, the refrigerant circuit is connected to the condenser 16
Because the R134a is naturally circulated by the height difference between the evaporator 18 and the evaporator 18, a pump is not required, the structure is simple, inexpensive, and no maintenance is required.

In this dehumidification system, R134a
Because no water is used, the house will not be damaged by water leakage.

Further, in this dehumidifying system, since R134a is used as a refrigerant, even when the exhaust heat temperature from the heat source 11 is 80 ° C., it is 2.6 MPa, and R22 is 3.6 MPa.
As a result, the pressure becomes lower, and the thickness of the piping of the circulation path 15 can be reduced.

In FIG. 1, the outside air OA flowing from the inlet into the dehumidifying passage 2 is dried by the adsorption of the moisture by the adsorption rotor 5, and the dehumidified air whose temperature is raised by the heat of adsorption of the adsorption rotor 5 is converted into the sensible heat rotor. By 7, the sensible heat is deprived to an appropriate temperature and the sensible heat rotor 7 is heated. In this way, the dehumidified air SA that has been dehumidified and has reached an appropriate temperature is supplied from the outlet toward the room.

On the other hand, the air RA from the room flows into the regeneration passage 3 from the inlet, is preheated by the sensible heat rotor 7, and
It is heated by the condenser 16 supplied with hot R134a. With the heated air, moisture is released from the adsorption rotor 5, the adsorption rotor 5 is regenerated, and the air EA containing moisture is released to the outside.

As described above, moisture is transferred from the air flowing through the dehumidifying passage 2 to the regeneration passage 3 by the adsorption rotor 5, and the dehumidified air SA is supplied to the room.

The humidification system shown in FIG. 2 differs from the dehumidification system shown in FIG. 1 in that a condenser 26 is provided upstream of the adsorption rotor 5 in the humidification passage 42 instead of the condenser 16 in FIG. It is mainly different from the dehumidification system shown in FIG. Therefore, the same components as those of the dehumidification system shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted. Differences will mainly be described below. The dehumidifying passage 2 of the dehumidifying system shown in FIG.
The regeneration passage 3 becomes a humidification passage 42 and a moisture absorption passage 43 in the humidification system.

As shown in FIG. 2, in this humidification system, the outside air OA flowing from the inlet to the humidification passage 42 is heated by the condenser 26 and humidified by receiving moisture from the adsorption rotor 5. Thus, the humidified air humidified by the suction rotor 5 passes through the stopped sensible heat rotor 7,
Humidified air SA is supplied from the outlet toward the room.

On the other hand, the air RA from the room is
, From the inlet, passes through the stopped sensible heat rotor 7, and is further adsorbed by the adsorption rotor 5.

As described above, moisture is transferred from the air flowing through the moisture absorption passage 43 to the humidification passage 42 by the suction rotor 5, and the humidified air SA is supplied to the room.

Since R134a is supplied to the condenser 26 and water is not supplied, there is no danger of damage to the house due to water leakage, and R134a is naturally circulated and no pump is used. 1 is similar to the dehumidification system of FIG. 1 in that it has a simple structure, is inexpensive, and requires no maintenance.

The dehumidifying / humidifying system shown in FIG. 3 includes a condenser 16 (hereinafter, referred to as a first condenser 16) of the dehumidifying system of FIG. 1 and a condenser 26 (hereinafter, referred to as a second condenser 2) of the humidifying system of FIG.
Six. ) Are provided together, and the evaporator 18 is connected to the first condenser 1 by three-way switching valves 31 and 32 as an example of switching means.
6 or the second condenser 26, and connected to the evaporator 1
8 and the first condenser 16 or the second condenser 26 are different from the dehumidification system and the humidification system shown in FIGS. In this dehumidification / humidification system, the passages that were referred to as the dehumidification passage 2 and the humidification passage 42 in the dehumidification system and the humidification system in FIGS. The passage that has been used is referred to as a first humidity control passage 53.

When the dehumidifying / humidifying system is operated with the dehumidifying system, the three-way switching valves 31 and 32 are used for the first operation.
The condenser 16 and the evaporator 18 are connected, the first condenser 16 is operated, and the operation of the second condenser 26 is stopped. In this case, dehumidified air can be supplied to the room just like the dehumidification system of FIG.

On the other hand, when operating the dehumidification system with the humidification system, the second condenser 26 and the evaporator 18 are connected by the three-way switching valves 31 and 32 to operate the second condenser 26. Then, the operation of the first condenser 16 is stopped, and the sensible heat rotor 7 is stopped. In this case, humidified air can be supplied to the room just like the humidification system of FIG.

The first and second condensers 16 and 26 have R1
Since no water is supplied by supplying 34a, there is no danger of damage to the house due to water leakage, and since the R134a is naturally circulated and no pump is used, the structure is simple, inexpensive, and maintenance. Is unnecessary as in the dehumidification system of FIG. 1 and the humidification system of FIG.

In the above embodiment, R134a is used as the refrigerant.
However, even when using other fluorine-based refrigerants, carbon dioxide, hydrocarbon-based refrigerants such as propane and methane, water leakage can be prevented, as in the case of using R134a, and without using a pump. Also, the refrigerant can be circulated naturally.

[0039]

As is apparent from the above description, according to the dehumidifying system of the first aspect of the present invention, the condenser provided on the upstream side of the adsorption rotor in the regeneration passage, and the condenser located below the condenser. A refrigerant circuit comprising an evaporator provided and a circulation path connecting the evaporator and the condenser is filled with one of a fluorine-based refrigerant, a carbon dioxide gas or a hydrocarbon-based refrigerant without using water. Since the refrigerant circulates naturally, there is no danger of damage to the house due to water leakage, and no pump is required, the structure is simple and inexpensive, and the need for maintenance is reduced.

According to the humidification system of the second aspect,
A refrigerant circuit including a condenser provided upstream of the adsorption rotor in the humidifying passage, an evaporator provided below the condenser, and a circulation path connecting the evaporator and the condenser. Into, without using water, filling one of the fluorine-based refrigerant, carbon dioxide or hydrocarbon-based refrigerant,
Since the refrigerant circulates naturally, there is no danger of damage to the house due to water leakage, and no pump is required, the structure is simple and inexpensive, and the need for maintenance is reduced.

According to the dehumidification / humidification system of the third aspect, the first condenser provided upstream of the adsorption rotor in the first humidity control passage, and the upstream side of the adsorption rotor in the second humidity control passage. A second condenser provided in the first,
An evaporator provided at a position lower than the second condenser, a circulation path connecting the first and second condensers and the evaporator, and the evaporator as a first condenser or a second condenser. Since the refrigerant circuit comprising the switching means for switching connection is filled with one of a fluorine-based refrigerant, carbon dioxide gas or a hydrocarbon-based refrigerant without using water, the refrigerant is allowed to circulate naturally. There is no danger of damage to the house due to water leakage, and no pump is required, the structure is simple and inexpensive, and the need for maintenance is reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a dehumidification system according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a humidification system according to an embodiment of the present invention.

FIG. 3 is a schematic diagram of a dehumidification / humidification system according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a conventional dehumidification system.

[Explanation of symbols]

 2 Dehumidification passage 3 Regeneration passage 5 Adsorption rotor 7 Sensible heat rotor 16 First condenser 18 Evaporator 26 Second condenser 31, 32 Three-way switching valve 42 Humidification passage 43 Hygroscopic passage 52 First humidity control passage 53 Second humidity control aisle

Claims (3)

[Claims] 1. A regeneration passage (3), a dehumidification passage (2),
An adsorption rotor (5) for transferring moisture from the air flowing through the dehumidifying passage (2) to the air flowing through the regeneration passage (3); and an adsorption rotor provided upstream of the adsorption rotor (5) in the regeneration passage (3). A condenser (16), an evaporator (18) provided at a position below the condenser (16), and a circulation path (1) connecting the evaporator (18) and the condenser (16).
5), the condenser (16), the evaporator (18), and the circulation path (1).
A dehumidification system, characterized in that the refrigerant circuit according to 5) is filled with one of a fluorine-based refrigerant, carbon dioxide gas or a hydrocarbon-based refrigerant. 2. A moisture absorbing passage (43) and a humidifying passage (42).
And an adsorption rotor (5) for transferring moisture from the air flowing through the humidification passage (43) to the air flowing through the humidification passage (42), and provided upstream of the adsorption rotor (5) in the humidification passage (42). Condenser (26), an evaporator (18) provided at a position lower than the condenser (26), and a circulation path connecting the evaporator (18) and the condenser (26). 15), the condenser (26), the evaporator (18), and the circulation path (1).
A humidification system, characterized in that the refrigerant circuit according to 5) is filled with one of a fluorine-based refrigerant, carbon dioxide gas or a hydrocarbon-based refrigerant. 3. A first humidity control passage (53), a second humidity control passage (52), and a transfer of water between the second humidity control passage (52) and the first humidity control passage (53). A suction rotor (5),
A first condenser (16) provided on the upstream side of the adsorption rotor (5) in the first humidity control passage (53); and an upstream of the adsorption rotor (5) in the second humidity control passage (52). A second condenser (26) provided on the side, an evaporator (18) provided below the first and second condensers (16, 26), and the first and second condensers. Container (16, 2)
6) and the circulation path (15, 1) connecting the evaporator (18).
5) and switching means (3) for switching and connecting the evaporator (18) to the first condenser (16) or the second condenser (26).
1, 32), the first and second condensers (16, 26), the evaporator (18)
And a refrigerant circuit comprising a circulation path (15) and one of a fluorine-based refrigerant, a carbon dioxide gas and a hydrocarbon-based refrigerant.