JPH06321A - Open-type adsorptive air conditioner for heating and cooling - Google Patents

Abstract

PURPOSE:To obtain an open-type adsorptive air conditioner capable of being used in heating and cooling by simple switching. CONSTITUTION:Detachable short pipes 42, 43, 46 and 47 are provided between the supply air pipelines 45 and 48 and discharge air pipelines 41 and 45 and the main body 31 of an open-type adsorptive air conditioner, and the main body 31 is turned around a rotating shaft 49. When heating is switched to cooling, the short pipes 42, 43, 46 and 47 are detached, the main body 31 is turned around the rotating shaft through an angle of 180 deg., and again the short pipes 42, 43, 46 and 47 are connected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open type adsorption type air conditioner, and more particularly to an open type adsorption type air conditioner in which one open type adsorption type air conditioner main body is used for cooling and heating.

[0002]

2. Description of the Related Art An open type adsorption type air conditioner 10 comprises an exhaust passage 11 and an air supply passage 12 as shown in FIG. 5, and passes through the cooling open type adsorption type air conditioner body 1a during cooling.
Further, during heating, the valves 21 and 26 of the exhaust passage 11 and the valves 22 and 27 of the air supply passage 12 are switched so as to pass through the main body 1b of the open adsorption type air conditioner for heating. During cooling, the valves 26 and 27 are opened and the valves 21 and 22 are closed. The opposite is true when heating.

During cooling, as shown in FIG. 3, exhaust conditions are indoor conditions of 27 ° C. and absolute humidity of 11 and 2 g / kg-DA.
Assuming that the point a is (DA is dry air, the same applies hereinafter), this room air has its temperature reduced by its latent heat by evaporating water by the humidifier 2a, and the absolute humidity is 13.8 g / kg-.
It becomes point b of DA. Next, it enters the heat exchanger 3a, cools the supply air, heats the exhaust gas to the point c, and further, the regeneration heater 4a.
Is heated to 73 ° C. at point d (during which the absolute humidity does not change to 13.8 g / kg-DA). Next, the dehumidifying rotor 5a is regenerated, the moisture of the dehumidifying rotor 5 is evaporated,
Thereby, 46 ° C, absolute humidity 21.8g / kg-DA
Is discharged as point e.

On the other hand, assuming that the supply air is at a temperature f of outside air of 33 ° C. and an absolute humidity of 18.7 g / kg-DA at a point f, it is sent to the dehumidifying rotor 5a at this point and dehumidified there. Temperature can be raised at 60 ℃, absolute humidity 10.8g / kg-D
It becomes the point g of A, and heat is exchanged with the exhaust gas by the heat exchanger 3a.
It is supplied indoors at a point h of ℃ and absolute humidity of 10.8 g / kg-DA. That is, cooling is performed by replacing the air at point a of 27 ° C. and 11.2 g / kg-DA with the air at point h of 25 ° C. and 10.8 g / kg-DA. Further, the heat exchanger 3a is operated with a temperature difference of 39 ° C. between the exhaust gas at the point b of 21 ° C. and the supply air at the point g of 60 ° C., making the former 56 ° C. and the latter 25 ° C.

During heating, as shown in FIG. 4, the exhaust gas has a room condition of 18 ° C. and an absolute humidity of 11.5 g / kg-DA at point a.
Then, it is dehumidified by the dehumidifying rotor 5b and the temperature is raised by the heat of adsorption to reach 40 ° C., and the absolute humidity is 5.5 g / kg-DA at point b. Then, heat is exchanged with the supply air by the heat exchanger 3b, and 14 ° C. It is released to the outside at a point c of absolute humidity 5.5 g / kg-DA.

On the other hand, when the condition of the outside air is 10 ° C. and the absolute humidity is 4.9 g / kg-DA, the supply air enters the humidifier 2b at this point and evaporates water to lower the temperature by its latent heat.
It becomes a point e of 7 ° C and an absolute humidity of 7.5 g / kg-DA, enters the heat exchanger 3b, exchanges heat with the exhaust gas, is heated to 27 ° C, becomes f point, and is further heated by the heater 4b and g of 60 ° C. It becomes a point (absolute humidity does not change to 7.5 g / kg-DA during this period). Next, it is humidified by the dehumidifying rotor 5b, but the temperature drops again due to the latent heat of vaporization of water, at 30 ° C, and the absolute humidity is 11.5 g / k
It becomes the h point of g-DA and is supplied indoors. Ie 1
8 ° C., 11.5 g / kg-DA at point a of air at 30 ° C.,
Heating is performed by replacing the air at point h of 11.5 g / kg-DA. The heat exchanger 3b has 40
33 ° C temperature difference between the exhaust gas at point b of ℃ and the supply air at point e of 7 ° C
And the latter at 27 ° C.

As shown in FIG. 6, the dehumidifying rotor 5 has a cylindrical shape and is divided into two semicircular parts, and the inside thereof is filled with an adsorbent such as silica gel or activated carbon. One side, eg upper side 8
Adsorption (air supply passage 12 for cooling, exhaust passage 1 for heating)
1) side, the lower side 9 is placed on the desorption side (exhaust passage 11 for cooling, air supply passage 12 for heating), and the adsorption side and the desorption side are switched by rotating the dehumidification rotor 5 half a time at regular intervals. .

The heat exchanger 3 has a similar structure, but is different in that it is filled inside and is a heat storage material such as a synthetic resin or a metal plate. When this heat storage material is heated by air supply for cooling and heated by exhaust gas for heating, it rotates halfway together with the dehumidifying rotor, and returns to the original temperature by exhaust gas for cooling and air supply for heating.

The humidifier 2 is generally used for spraying water for cooling air and for supplying air for heating, and the heater 4 is
Ordinary heaters for heat sources such as city gas and electricity are used.

In the heating and cooling by the open type adsorption type air conditioner 10, the difference between the temperature of the supply air and the temperature in the room is small (4 ° C. during cooling, 12 ° C. during heating), so that the cooling and heating effect is poor, so that it can be used independently. It is rarely used as an air conditioner. on the other hand,
Air conditioning by a generally used air conditioner is one in which air in a space 13 for air conditioning is partially circulated and the circulated air is cooled or warmed by an air conditioner 14 as shown in FIG. If the air-conditioning is done for a long time in a room where is closed, the air inside becomes dirty. Therefore, a part of the air is exhausted by the ventilation device 15 and replaced with fresh outside air. In this case, since the temperature difference between the discharged air and the taken-in air is small (6 ° C. during cooling, 8 ° C. during heating), the ventilation device 15 does not normally perform heat exchange.

Ventilation device 15 for air-conditioned space 13
In general, a configuration in which the above-mentioned open type adsorption air conditioner is incorporated and used.

[0012]

However, when the open type adsorption type air conditioner is used for cooling and heating, two open type adsorption type air conditioner bodies 1a and 1b are required as shown in FIG. There are problems such as the need for four valves.

An object of the present invention is to provide an open type adsorption air conditioner which is used by switching one air conditioner main body for cooling and heating without using a switching valve.

[0014]

DISCLOSURE OF THE INVENTION The present invention is an open type adsorption type air conditioner main body, which is a cylindrical housing divided into two parts, and a dehumidifying rotor having an adsorbent for alternately adsorbing and desorbing, In the open type adsorption type air conditioner composed of a heater for heating the adsorbent when desorbing it, an open type adsorption type air conditioner body including a heat exchanger, and an air supply pipe and an exhaust pipe. A characteristic feature is that a detachable short pipe is provided at a connecting portion between the air pipe and the exhaust pipe and the main body of the open air adsorption type air conditioner, and the main body of the open air adsorption type air conditioner is configured to be rotatable about a rotation axis. It is an open adsorption air conditioner for air conditioning.

[0015]

According to the present invention, a detachable short pipe is provided at the connecting portion between the main body of the open air adsorption type air conditioner incorporated in the ventilation device and the air supply / exhaust pipe, and the short pipe is removed to fix the main body of the air conditioner to the rotary shaft. Half turn around, again connecting the air supply and exhaust piping to the open adsorption air conditioner main body with this short pipe, and switching between cooling and heating, cooling and heating with one open adsorption air conditioner main body It can be performed.

[0016]

EXAMPLES The open-type adsorption air conditioner according to the present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto.

FIG. 1 is a cross section of the open type adsorption type air conditioner 30 of one embodiment of the present invention used for cooling.

Part of the room air is sucked by the exhaust fan 36, passes through the exhaust duct 41 and the inlet-side exhaust short pipe 42, and enters the exhaust passage 40 of the open-type adsorption type air conditioner body 31. The exhaust passage 40 includes a humidifier 32, a heat exchanger 33, a heater 34, and a dehumidifying rotor 35. Exhaust gas passes through each device in this order to reach the outlet-side exhaust short pipe 43 and is discharged from the exhaust duct 44 to the outside. Go away. The relationship between the temperature and humidity in each device of the exhaust gas is the same as that described in the prior art, and it goes from point a in FIG. 3 to point e through points b, c and d in order.

On the other hand, as for the air supply, the outside air is sent to the air supply passage 39 of the air conditioner body 31 through the air supply duct 45 and the inlet side air supply short pipe 46 by the air supply fan 37. The air supply passage 39 has the dehumidifying rotor 35 and the heat exchanger 32, and the air supply passes through each device in this order to reach the outlet side air supply short pipe 47.
It is supplied indoors from the air supply duct 48. The relationship between the temperature and the humidity in each device for supplying air is the same as that described in the related art, and it goes from point f to point h in FIG.

The dehumidifying rotor 35 and the heat exchanger 33 are rotated half a time at regular intervals, as in the prior art. The heater 34 heats exhaust gas with fuel such as city gas. The humidifier 32 sprays water or the like on the exhaust.

The inlet side short exhaust pipe 42 is detachably attached to the exhaust duct 41 and the air conditioner main body 31 with bolts, nuts and the like. The outlet side exhaust short pipe 43, the inlet side air supply short pipe 46, and the outlet side air supply short pipe 47 have the same configuration. In addition, pipes such as city gas supplied to the heater 34,
The pipes of water supplied to the humidifier 32 also use detachable short pipes 53, 54 for connecting the valves 51, 52 and the air conditioner body 31.

When switching from cooling to heating, these short pipes 42, 43, 46, 47, 53, 54 are removed, and the open type adsorption type air conditioner main body 31 is centered around the rotary shaft 49 in the direction of arrow 50, for example. Rotate 180 °. As a result, the points 60, 61, 62, 63 of the air conditioner body 31 move to the points 62, 63, 60, 61, respectively. In this state, switching is completed by connecting the short pipes 42, 43, 46, 47, 53, 54. FIG. 2 is a diagram showing a state in which switching has been completed, that is, a heating state.

During heating, a part of the indoor air is sucked by the exhaust fan 36, and enters the exhaust passage 40 of the air conditioner main body 31 through the exhaust duct 41 and the inlet side short exhaust pipe 42.
The exhaust passage 40 has a dehumidifying rotor 35 and a heat exchanger 33.
The exhaust gas passes through each device in this order to reach the outlet-side exhaust short pipe 43, and is exhausted to the outside from the exhaust duct 44. The relationship between the temperature and the humidity in each device of the exhaust gas is the same as that described in the related art, and it goes from point a to point b to point c in FIG.

On the other hand, the supply air is sent to the supply passage 39 of the main body 31 of the air conditioner by the supply fan 37 through which the outside air passes through the supply duct 45 and the inlet side supply short pipe 46. The air supply passage 39 includes a humidifier 32, a heat exchanger 33, a heater 34, and a dehumidifying rotor 35. Air supply passes through each device in this order to reach the outlet side air supply short pipe 47 and the air supply duct 48. Supplied indoors. The relationship between the temperature and the humidity in each device for supplying air is the same as that described in the related art.
The point h is reached through f and g.

The dehumidifying rotor 35 and the heat exchanger 33 are rotated half a time at regular intervals, as in the prior art. The heater 34 heats the supply air with a fuel such as city gas. The humidifier 32 sprays water or the like on the exhaust.

The air conditioner main body 31 is relatively light in weight, and is rotatably installed on the rotary shaft 49. The city gas piping as fuel for the heater 34 and the water piping for the humidifier 32 are also simple. Well, short tubes 42, 43, 4 that can be attached to and detached from each connection part
By providing 6, 47, 53, 54, it is possible to easily switch between cooling and heating. It should be noted that switching between air conditioning and heating is normally performed once in the middle of spring and autumn, and it does not take much time to remove and attach the short pipe.

Further, the structure of the dehumidifying rotor 35 is not limited to the one shown in FIG. 6 in which the adsorbent and the desorbent are divided into two parts and switched at regular intervals. For example, the whole is divided into eight equal parts and continuously rotated. It may be one. Further, the adsorbents having different adsorption characteristics may be provided in several layers.

The heat exchanger 33 may be of a fixed type other than the rotary type and heat is exchanged by a heat pipe.

[0029]

As described above, according to the present invention, a short pipe provided at the entrance and exit of one open-type adsorption air conditioner main body is removed, the air conditioner main body is rotated halfway around the rotation axis, and the entrance and exit is performed again. By attaching a short pipe to the air conditioner, it is possible to switch between heating and cooling without using switching means such as an expensive valve at the entrance and exit. For this reason, the installation space for the main body of the open-type adsorption type air conditioner is half, and the piping for the air supply and exhaust ducts is simplified.

[Brief description of drawings]

FIG. 1 is an open-type adsorption air conditioner 3 according to an embodiment of the present invention.
It is sectional drawing at the time of 0 cooling.

FIG. 2 is an open-type adsorption air conditioner 3 which is an embodiment of the present invention.
It is sectional drawing at the time of 0 heating.

FIG. 3 is a graph showing a relationship between temperature and humidity of each part of exhaust air and air supply during cooling of the open-type adsorption air conditioner 30.

FIG. 4 is a graph showing a relationship between temperature and humidity of each part of exhaust and supply air during heating of the open-type adsorption air conditioner 30.

FIG. 5 is a cross-sectional view of a conventional open-type adsorption air conditioner 10.

FIG. 6 is a plan view of a dehumidifying rotor 35 used in the open-type adsorption air conditioner body 31 of the present invention.

FIG. 7 is a flowchart showing a relationship among a space 13 for air conditioning, an air conditioner 14 and a ventilation device 15.

[Explanation of symbols]

 30 Open Adsorption Air Conditioner 31 Open Adsorption Air Conditioner Main Body 33 Heat Exchanger 34 Heater 35 Dehumidification Rotor 42 Inlet Side Exhaust Short Pipe 43 Outlet Side Exhaust Short Pipe 46 Inlet Side Air Supply Short Pipe 47 Outlet Side Air Supply Short tube

Claims (1)

[Claims] 1. An open air adsorption type air conditioner main body, which is a cylindrical housing divided into two parts, a dehumidifying rotor having an adsorbent for alternately adsorbing and desorbing, and a dehumidifying rotor for desorbing the adsorbent. In an open-type adsorption air conditioner consisting of an open type adsorption air conditioner body consisting of a heater that heats the air and a heat exchanger, and an air supply pipe and an exhaust pipe, An open type adsorption type air conditioner for cooling and heating, characterized in that a detachable short tube is provided at the connection part with the adsorption type air conditioning unit body, and the open type adsorption type air conditioning unit body is configured to be rotatable around a rotation axis. .