JPH11351647A - Humidifying apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve responsiveness of humidifying operation in a humidifying apparatus capable of simply and accurately adjusting a humidification amount even under low temperature conditions by executing humidifying operation, interlocking with on/off operation of a freezer. SOLUTION: The inside of a prefabrication 27 is cooled with a refrigeration circuit 3 in which there are connected in order a compressor 20, a condenser 21, an expansion valve 23, and an evaporator 24 and an on/off operation is performed. There are further provided a water circulation circuit 2 where there are connected in order a tank 6, a pump 4 and a moisture permeable humidifier 5, and an interlocking controller 26 for controlling interruption and starting of the pump 4, interlocking the on/off state of the compressor 20. An air fan 16 is provided for supplying air to the moisture permeable humidifier 5. A temperature controller 9 is provided for adjusting the amount of heating of a heater 7 based upon a detection value from a water temperature sensor 8 such that the amount of dehumidification of the evaporator 24 is equal to the amount of humidification of the moisture permeable humidifier 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a humidifying device,
In particular, it relates to a humidifying device used for a freezing / refrigeration device.

[0002]

2. Description of the Related Art Conventionally, a refrigerating apparatus has been known which maintains air in a refrigerator at low temperature and high humidity for the purpose of, for example, storing food. Since the evaporator of the refrigerating device has a temperature lower than the dew point of the air in the refrigerator, dew condensation occurs on the surface of the evaporator.
Therefore, since the air in the refrigerator is dehumidified, humidification must be performed to keep the humidity in the refrigerator constant.

[0003] However, under a low temperature condition, the relative humidity greatly changes due to a small amount of humidification because the partial pressure of water vapor of saturated air is low. When the refrigerator is turned on / off, dew condensation water on the evaporator may evaporate and humidification may be performed by means other than the humidifier with an increase in the internal temperature due to the stop of the refrigerator. Therefore, it has been very difficult to stably control the humidity with high accuracy.

FIG. 13 (a) shows changes in the temperature and humidity in the refrigerator over time in a refrigerating apparatus that controls ON / OFF of a refrigerator. As is clear from FIG.
In the N state, the internal temperature decreases, and in the OFF state, the internal temperature increases. Further, when the refrigerator is in the ON state, dew condensation occurs in the evaporator, so that the air in the refrigerator is dehumidified and the humidity decreases. On the other hand, when the refrigerator is in the OFF state, the humidity inside the refrigerator increases because the dew water remaining in the evaporator evaporates due to the rise in the refrigerator temperature. Therefore, the humidity in the refrigerator repeatedly rises and falls according to ON / OFF of the refrigerator.

[0005] Incidentally, as one of the conventional humidification controls,
Some humidifiers are operated by detecting the humidity of the inside air by a humidity sensor and when the detected value is smaller than a target humidity. FIG. 13 (b) shows changes in the temperature and humidity in the refrigerator with time when such humidification control is performed. Point P1 represents the time when the humidifier was turned on, and point P2 represents the time when the humidifier was turned off. As is clear from FIG. 13B, the response of the conventional humidification control is poor, and
Humidity continues to rise even after setting to F, relative humidity is 100%
And dew condensation may occur on the storage in the storage. As a result, the humidity fluctuated greatly.

In order to prevent such over-humidification, the humidifier disclosed in Japanese Patent Application Laid-Open No. Hei 1-203689 operates and stops the humidifier in conjunction with the ON / OFF state of the refrigerator. . In such humidification control,
The water to be dehumidified by the evaporator is replenished at the same time by the humidifier, and the timing difference between the dehumidification and the humidification is small. Further, when the refrigerator is in the OFF state, humidification by the humidifier is stopped, and humidification is performed only by evaporation of moisture condensed in the evaporator, so that an excessive rise in humidity can be suppressed. As a result, as shown in FIG.

[0007]

However, in the humidifying device disclosed in the above publication, a two-fluid nozzle is connected to a duct provided with an ejection port for ejecting fine water droplets or steam, and steam is supplied to the air in the refrigerator through the duct. Is what you do. Therefore, since steam is supplied irrespective of the amount of dehumidification, it is difficult to finely adjust the amount of humidification even if the excessive rise in humidity due to the evaporation of dew water can be eliminated. That is, the required humidification amount varies depending on the setting conditions of the refrigerating device, the target humidity, and the like, but the humidification device cannot adjust the humidification amount flexibly in response thereto.

Therefore, a humidifier capable of easily adjusting the humidification amount under various low-temperature conditions has been desired. The inventor of the present invention has devised a humidifying device in which a permeable membrane humidifier is provided in a water circulation circuit and the humidification amount is adjusted by adjusting the temperature of circulating water. Also in this humidifier, it is desirable that the humidifying operation be linked to the ON / OFF operation of the refrigerator in order to increase the responsiveness of the humidifying control.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a humidifying device capable of easily and accurately adjusting a humidifying amount even under a low temperature condition. The humidifying operation is performed in conjunction with the humidifying operation to improve the responsiveness of the humidifying operation.

[0010]

In order to achieve the above object, the present invention provides a humidifying means (5) having a porous member for preventing the passage of water and passing only water vapor.
In (2), a predetermined amount of humidification is performed by supplying temperature-controlled water to the humidification means (5), and the humidification operation of the humidification means (5) is linked with the refrigerator (3). I made it run.

Specifically, the means taken by the first invention are:
A humidifying device for humidifying the inside of a refrigerator (27) cooled by a refrigerator (3), wherein the water passage is separated from an air passage by a porous member that prevents passage of water and allows only water vapor to pass through.
(15), humidifying means (5) for supplying steam from the water in the water flow path (15) to the air through the porous member, and storing the water supplied to the humidifying means (5) while controlling the temperature. Storage means for recovering water flowing through the humidifying means (5)
(6) and a circulating drive means (4) for supplying the water of the storage means (6) to the humidifying means (5) are connected in this order.
(2) and blowing means for supplying air in the refrigerator to the humidifying means (5)
(16) and control to execute the humidifying operation of the humidifying means (5) when the refrigerator (3) is operated, and to stop the humidifying operation of the humidifying means (5) when the refrigerator (3) is stopped. Means (26).

[0012] According to the above-mentioned invention specific matter, when the refrigerator (3) is operated, the refrigerator (3) cools the air in the refrigerator, condenses moisture in the air, and dehumidifies the refrigerator. In the water circulation circuit (2), temperature-controlled storage means (6)
The water is supplied to the humidifying means (5) by the circulation driving means (4). The water supplied to the humidifying means (5) flows through the water flow path (15), and steam is supplied to the inside air blown by the blowing means (16) through the porous member. Humidification through the porous member is performed by using a pressure difference between a partial pressure of water vapor of saturated air corresponding to a surface temperature of the porous member and a partial pressure of water vapor of air in the air passage as a driving force. On the other hand, when the refrigerator (3) is stopped, the humidifying operation of the humidifying means (5) is stopped. Therefore, the dehumidification by the refrigerator (3) and the humidification by the humidification means (5) are always performed in conjunction with each other, and the responsiveness of the humidification operation is improved.

According to a second aspect of the present invention, in the first aspect, the control means (26) activates the circulation driving means (4) when the refrigerator (3) operates to activate the water circulation circuit (2). The circulation drive means (4) is stopped when the refrigerator (3) is stopped.

According to the above-mentioned invention, the circulation drive means (4) operates when the refrigerator (3) is operated, so that the water circulation circuit is operated.
The water of (2) is circulated, and the temperature-controlled water is supplied to the humidifying means (5) to perform humidification in the refrigerator. Meanwhile, refrigerator (3)
When the operation is stopped, the circulation driving means (4) stops, so that the water in the water circulation circuit (2) does not circulate, and the temperature-controlled water is supplied to the humidifying means.
(5) will not be supplied. Therefore, the humidification operation stops.

According to a third aspect of the present invention, in the first aspect, the control means (26) activates the air blowing means (16) when the refrigerator (3) operates, while the control means (26) operates the refrigerator (3). ), The blower means (16) is stopped.

According to the above-mentioned specific features of the present invention, when the refrigerator (3) is operated, the air blowing means (16) is operated, so that the air in the refrigerator is supplied to the humidifying means (5), and the humidification in the refrigerator is performed. On the other hand, when the refrigerator (3) is stopped, the air blowing means (16) is stopped, so that the air in the refrigerator is not supplied to the humidifier (5), and the humidification in the refrigerator is not performed. Therefore, the humidification operation stops.

According to a fourth aspect of the present invention, in the first aspect, the control means (26) activates the circulation driving means (4) and the blowing means (16) when the refrigerator (3) operates. on the other hand,
When the refrigerator (3) is stopped, the circulation driving means (4) and the air blowing means (16) are stopped.

According to the above-mentioned invention, when the refrigerator (3) is operated, the circulating drive means (4) and the air blowing means (16) are operated, so that the water in the water circulation circuit (2) circulates and the humidifying means (5) Is supplied with temperature-controlled water. Further, the inside air is supplied to the humidifying means (5). As a result, humidification in the refrigerator is performed. On the other hand, when the refrigerator (3) is stopped, the circulation driving means (4) and the blowing means (16) are stopped, so that the water in the water circulation circuit (2) does not circulate, and the temperature-controlled water is supplied to the humidifying means (5). Will not be supplied to Further, no air in the refrigerator is supplied to the humidifying means (5). Therefore, the humidification operation stops.

According to a fifth aspect of the present invention, in the first aspect, the water circulation circuit (2) is provided in a pipe (18) between the circulation driving means (4) and the humidifying means (5). The first open / close valve (2
8), one end of which is connected between the circulation driving means (4) and the first on-off valve (28) in the pipe (18),
Bypass pipe to bypass water from (4) to storage means (6)
(32) and a second on-off valve (29) provided in the bypass pipe (32).
The control means (26) opens the first on-off valve (28) and operates the second on-off valve (29) when the refrigerator (3) operates.
While the refrigerator (3) is stopped, the first on-off valve (28) is closed and the second on-off valve (29) is opened.

According to the invention, when the refrigerator (3) is operated, the first open / close valve (28) is opened and the second open / close valve (29) is closed in the water circulation circuit (2). The water of 6) is driven by the circulation drive means (4), circulates through the humidification means (5), and performs a circulation operation returning to the storage means (6) again. As a result, the humidifying operation is performed in the humidifying means (5). On the other hand, when the refrigerator (3) is stopped,
In (2), the first on-off valve (28) is closed and the second on-off valve (29) is opened, so that the water in the storage means (6) is driven by the circulation drive means (4) and the bypass pipe (32) A circulation operation to return to the storage means (6) is performed. As a result, storage means
The water of (6) is not supplied to the humidifying means (5), and the humidifying operation stops.

According to a sixth aspect of the present invention, in the first aspect, the water circulation circuit (2) is provided on a pipe (18) between the circulation driving means (4) and the humidifying means (5). The first open / close valve (2
8), one end of which is connected between the circulation driving means (4) and the first on-off valve (28) in the pipe (18),
Bypass pipe to bypass water from (4) to storage means (6)
(32) and a second on-off valve (29) provided in the bypass pipe (32).
When the refrigerator (3) operates, the control means (26) activates the blowing means (16), opens the first on-off valve (28), and closes the second on-off valve (29). While the refrigerator
When (3) is stopped, the blower means (16) is stopped, the first on-off valve (28) is closed, and the second on-off valve (29) is opened. is there.

According to the invention, the first on-off valve (28) is opened and the second on-off valve (29) is opened when the refrigerator (3) is operated.
Is closed, so the water in the storage means (6) is
After being driven by (4) and flowing through the humidifying means (5), a circulating operation returning to the storage means (6) is performed again. Also, blowing means
Since (16) operates, the air in the refrigerator is supplied to the humidifying means (5). As a result, humidification in the refrigerator is performed. On the other hand, when the refrigerator (3) is stopped, the first on-off valve (28) is closed and the second on-off valve (29) is opened, so that the water in the storage means (6) is driven by the circulation drive means (4). Then, a circulation operation is performed to return to the storage means (6) through the bypass pipe (32). Also, blowing means
Since (16) stops, no air in the refrigerator is supplied to the humidifying means (5). Therefore, the water in the storage means (6) is humidified
(5), and the air in the refrigerator is not supplied to the humidifying means (5), so that the humidification in the refrigerator is reliably stopped.

A seventh aspect of the present invention is the humidifying means according to any one of the second or fourth to sixth aspects.
(5) is provided above the storage means (6) so that the water in the humidifying means (5) flows down and is discharged when the refrigerator (3) is stopped. .

According to the above-mentioned invention, since the humidifying means (5) is provided above the storing means (6),
When (3) is stopped, the water in the humidifying means (5) flows down by gravity, and the water in the humidifying means (5) is discharged. As a result, humidification due to residual water is prevented, and the humidification operation is reliably stopped when the refrigerator (3) is stopped.

According to an eighth aspect, in the seventh aspect, the humidifying means (5) is provided with an air inlet for introducing air into the humidifying means (5) to promote discharge of water. When the refrigerator (3) is stopped, air is introduced into the humidifying means (5) through the air inlet (37) while the refrigerator (3) is stopped.
The opening and closing means (36) for preventing the introduction of air from the air inlet (37) during the operation of (2) is provided.

According to the above-mentioned features of the invention, when the refrigerator (3) is operated, the opening / closing means (36) prevents the introduction of air from the air inlet (37), so that the water supplied to the humidifying means (5) is prevented. Circulates smoothly through the water flow path (15), and the humidifying operation is performed. On the other hand, when the refrigerator (3) is stopped, the opening / closing means (36) introduces air to the humidifying means (5) through the air inlet (37), thereby promoting the discharge of water in the humidifying means (5). It will be discharged promptly. Therefore, humidification due to residual water is prevented immediately after the refrigerator (3) is stopped.

[0027]

Embodiments of the present invention will be described below with reference to the drawings.

<Embodiment 1>-Configuration of refrigeration apparatus (1)-The refrigeration apparatus (1) according to the present embodiment is installed on a prefab (27), and converts the air in the prefab (27) to a predetermined temperature and humidity. This is a refrigeration / freezing unit used to maintain the temperature. As shown in FIG. 1, the present refrigerator (1) includes a water circulation circuit (2) and a refrigerant circuit (3). The water circulating circuit (2) and its attached equipment constitute a humidifying device according to the present invention. The refrigerant circuit (3) constitutes a refrigerator (3) according to the present invention.

The refrigerant circuit (3) is connected to the compressors (2
0), a condenser (21), an expansion valve (23), and an evaporator (24). A start / stop controller (35) for starting / stopping control (ON / OFF control) of the compressor (20) is connected to the compressor (20). The condenser (21) is provided outside the prefab (27) together with the outdoor blower (22), and the evaporator (24) is installed inside the prefab (27) together with the indoor blower (25).

On the other hand, the water circulating circuit (2) comprises a pump (4) as a circulating driving means and a moisture permeable humidifier as a humidifying means.
(5) and a tank (6) as storage means are connected in order.

The tank (6) is provided with a water temperature sensor (8) for detecting the temperature of the stored water. Water temperature sensor
(8) is connected to the water temperature controller (9) and the water temperature sensor
The detected value of (8) is input to the water temperature controller (9). The tank (6) is provided with a heater (7) for heating the stored water. The heater (7) is a heater whose heating amount can be adjusted freely, and a water temperature controller.
The heating amount is adjusted based on the control signal from (9). These tanks (6), heaters (7)
The water temperature sensor (8) and the water temperature controller (9) constitute a water temperature control means (TC) for controlling the temperature of water supplied to the moisture permeable humidifier (5).

The tank (6) has a float switch
(10) is provided. The float switch (10) is connected to a water supply solenoid valve (12) provided in a water supply pipe (11) for supplying water to the tank (6). The float switch (10) keeps the water supply solenoid valve (12) closed when the water level in the tank (6) is higher than a predetermined water level, while the float switch (10) keeps the water supply solenoid valve (12) closed when the water level in the tank (6) is lower than the predetermined water level. Open the water supply solenoid valve (12) to supply water to the tank (6).

At the bottom of the tank (6), a drain valve (14)
The drainage pipe (13) provided with is connected. Also tank
The outlet (17a) of (6) is connected to an outflow pipe (17) through which water in the tank (6) flows out.

The outflow pipe (17) of the tank (6) is connected to the suction side of the pump (4). The discharge side of the pump (4) is connected to a moisture permeable humidifier (5) via an inlet pipe (18). The pump (4) is connected to a power supply (not shown), and an interlocking controller (26) is provided between the pump (4) and the power supply. The interlocking controller (26) is a compressor of the refrigerant circuit (3)
(20) to supply power to the pump (4) when the compressor (20) is in the ON state, and to cut off power supply to the pump (4) when the compressor (20) is in the OFF state. Is configured. That is, the pump (4) performs an ON / OFF operation in conjunction with the refrigerant circuit (3).

The moisture-permeable membrane humidifier (5) is formed by a moisture-permeable membrane tube (15) composed of a plurality of tubular moisture-permeable membranes, and the moisture-permeable membrane tube (15) forms a water flow path. I have. The moisture permeable membrane is a porous member made of a material such as polyethylene, polypropylene, polystyrene, and fluororesin, and having a large number of micropores that allow water vapor to pass freely but not water (liquid). An air blower (16) is installed in the moisture permeable membrane humidifier (5) as air blowing means (16) for supplying air to the moisture permeable membrane humidifier (5). And pump (4)
The water discharged from inside flows inside the moisture permeable membrane tube (15),
When the air supplied from the blower (16) flows outside the moisture permeable membrane tube (15), the water vapor passes through the moisture permeable membrane and is released into the air in the air passage, so that humidification is performed. I have.

In the first embodiment, the moisture-permeable membrane humidifier (5) is installed below the tank (6), that is, at a position lower than the tank (6). Conversely, the tank (6) is installed at a higher position than the permeable membrane humidifier (5).

The outlet pipe (19) of the humidifier (5) is a tank.
(6), the opening end of which is open downward. That is, the outlet pipe (19) is configured to return the water flowing out of the moisture permeable humidifier (5) to the tank (6).

As described above, the water circulation circuit (2)
During the operation of (4), water adjusted to a predetermined temperature in the tank (6) is continuously supplied to the permeable membrane humidifier (5).

-Operation of Refrigerator (1)-Next, the operation of the refrigerator (1) will be described. Refrigerant circuit
In (3), the inside of the prefab (27) is maintained at a predetermined temperature,
ON / OF of compressor (20) by start / stop controller (35)
F control is performed. In the water circulation circuit (2), the pump (4) starts and stops according to the ON / OFF state of the compressor (20), and water circulates.

When the compressor (20) is ON, the refrigerant circuit
In (3), the refrigerant discharged from the compressor (20) is condensed in the condenser (21), expanded in the expansion valve (23), evaporated in the evaporator (24), and evaporated in the prefabricated (27). After cooling the air
A circulation operation returning to the compressor (20) is performed. At this time, evaporator (24)
In the above, the moisture in the air is condensed and dehumidification is performed.

On the other hand, in the water circulation circuit (2), when the pump (4) is in the ON state, the water in the tank (6) is supplied to the moisture permeable humidifier (5) by the pump (4). Humidifier (5)
Distribute. At this time, the steam is prefabricated through the moisture permeable membrane.
(27), and humidified. Moisture permeable humidifier (5)
The water flowing out of the tank flows into the tank (6) through the outlet pipe (19). When the amount of water in the tank (6) decreases, the float switch (10) turns on, and the water supply solenoid valve (12) in the water supply pipe (11)
Opens and water is supplied to the tank (6). Therefore, the tank
(6) The water level is kept constant.

-Humidification control-Next, humidification control in the present refrigerator (1) will be described. This humidification control does not use conventional detection means such as a humidity sensor to detect humidity and perform control based on the detected value, but rather does not control temperature and humidity conditions in the prefab (27) or refrigeration equipment.
In this control, the dehumidification amount is calculated in advance from the specification (1) and the like, and a constant humidification amount equal to the dehumidification amount is supplied. That is, the humidification by the moisture permeable membrane humidifier (5) is performed in conjunction with the dehumidification in the evaporator (24) of the refrigerant circuit (3), and at the same time, an amount of water equal to the estimated dehumidification amount is constantly supplied. Control. In other words, the control is such that there is no difference between the timings of the dehumidification and the humidification, and the dehumidification amount and the humidification amount are always equal.

In the humidification control of this embodiment, the refrigerant circuit (3)
The interlocking controller (26) controls the start and stop of the pump (4) according to the ON / OFF state of the compressor (20). That is, when the compressor (20) is operating, it is determined that dehumidification is performed in the evaporator (24), and the pump (4) is operated to perform humidification in the moisture permeable humidifier (5). . On the other hand, if the compressor (20) is stopped, it is determined that dehumidification will not be performed, and the pump
Stop operation of (4) and stop humidification. Specifically, when the compressor (20) of the refrigerant circuit (3) is in the OFF state, the operation of the pump (4) is stopped by the interlocking controller (26),
Water in the water circulation circuit (2) stops circulating.

In this humidification control, the humidification amount of the permeable membrane humidifier (5) is controlled by adjusting the temperature of the water supplied to the permeable membrane humidifier (5). The water temperature of the permeable membrane humidifier (5)
According to the flowchart shown in FIG. 2, the setting is performed as follows.

First, in step ST1, the inlet air condition A of the moisture permeable humidifier (5) is set. That is, the temperature and humidity conditions of the air in the prefab (27) are determined.

Next, the process proceeds to step ST2, and the amount of dehumidification is calculated in the following order. That is,

[0047]

(Equation 1)

Then,

[0049]

(Equation 2)

Is as follows. Therefore,

[0051]

(Equation 3)

Is as follows. On the other hand, if the bypass factor is BF,

[0053]

(Equation 4)

Is as follows.

Then, as shown in FIG. 3, this result is plotted on the psychrometric chart, and when i ₃ and i ₁ are connected by a straight line, the intersection with i ₂ becomes the outlet air state B. As a result, the inlet air temperature t
_1, when the outlet air temperature t _2, the sensible heat Q _S is

[0056]

(Equation 5)

Is as follows.

The dehumidification amount Δx is

[0059]

(Equation 6)

Is calculated.

FIG. 4 shows the dehumidification amount calculated based on the above equation [5] using the relative humidity and the temperature of the inlet air condition A as parameters when using a compressor (20) of 1 hp. FIG.
As is clear, the greater the relative humidity of the inlet air, the greater the amount of dehumidification. Also, the higher the temperature of the inlet air, the greater the amount of dehumidification.

Next, the process proceeds to step ST3, where the dehumidification amount Δx is set as a target humidification amount in the moisture permeable humidifier (5).

Then, in step ST4, the target water temperature Tw in the permeable membrane humidifier (5) is calculated from the inlet air condition A and the target humidification amount. Specifically, the relationship between the inlet air condition, the water temperature of the moisture permeable membrane humidifier (5), and the amount of humidification is determined in advance by experiments or the like, and based on the relationship, the humidification amount is determined from the humidification amount. Calculate the water temperature back). For example, FIG.
Is a graph showing the humidification amount with the relative humidity of the inlet air and the difference ΔT between the water temperature of the permeable membrane humidifier (5) and the inlet air temperature as parameters. Here, since the target humidification amount is obtained from the dehumidification amount Δx calculated from the above equation [5], the position in the vertical axis direction is determined. The position in the horizontal axis direction is determined from the relative humidity of the inlet air. As a result, since the position of the coordinates in the graph of FIG. 5 is determined, the difference ΔT between the water temperature of the moisture permeable membrane humidifier (5) and the inlet air temperature is uniquely determined. Therefore, the target water temperature Tw is a value obtained by adding ΔT to the inlet air temperature.
By calculating ΔT, it is uniquely calculated.

Next, the process proceeds to step ST5, where the tank (6)
The water temperature controller (9) adjusts the heating amount of the heater (7) so that the temperature of the water in the inside becomes the target water temperature Tw.
If there is heat loss in the outflow pipe (17) or the inlet pipe (18) while traveling from the tank (6) to the moisture permeable humidifier (5), that is, if there is heat loss, the moisture permeable humidifier (5) Is the target water temperature T
w, the water temperature in the tank (6) is set to the target water temperature T.
Of course, it may be adjusted to be higher than w.

As described above, the water having the predetermined target water temperature Tw flows through the moisture permeable membrane humidifier (5), and the same amount of water as the dehumidification amount is always supplied into the prefabricated water (27). Become.

-Effects of Refrigerator (1)-As described above, according to the present refrigeration system (1), the refrigerant circuit (3)
The pump (4) of the water circulation circuit (2) is operated or stopped in conjunction with the ON / OFF state of the compressor (20). Therefore, when dehumidification is not performed, humidification is not performed. Can always be performed simultaneously. Therefore, there is no difference in timing between the dehumidifying operation and the humidifying operation, and there is no response delay. Therefore, it is possible to stably control the humidity. Further, a humidity sensor becomes unnecessary.

Further, not only the dehumidifying operation and the humidifying operation are linked but also the humidifying amount is set in advance so as to be equal to the dehumidifying amount after calculating the dehumidifying amount. There is no shift between them. Therefore, it is possible to stably maintain the humidity in the prefab (27) with high accuracy.

A water circulation circuit (2) capable of controlling the temperature of the circulating water freely
Is provided with a moisture permeable membrane humidifier (5), and water of a predetermined temperature is circulated through the moisture permeable membrane humidifier (5), so that the humidification amount can be changed only by adjusting the water temperature. Therefore, the humidification amount can be easily controlled only by adjusting the temperature of the circulating water.

<Second Embodiment> As shown in FIG. 6, a refrigeration apparatus (42) according to a second embodiment includes an ON / OF
The blower (16) is operated or stopped in conjunction with the F operation.

As shown in FIG. 6, the refrigeration system (42) in the first embodiment has a configuration in which the interlocking controller (26) is not connected to the pump (4) but to the blower (16). I have. That is, the interlocking controller (26)
When the compressor (20) is operated, the blower (16) is operated, while when the compressor (20) is stopped, the blower (16) is stopped.

Therefore, also in the present embodiment, humidification is not performed when dehumidification is not performed, and dehumidification and humidification can always be performed simultaneously. Therefore, similarly to the first embodiment, there is no difference in timing between the dehumidifying operation and the humidifying operation, and the humidity can be controlled stably.

In addition, in this embodiment, the blower (16) is stopped when the compressor (20) of the refrigerant circuit (3) is stopped, so that the humidification by the residual water of the moisture permeable membrane humidifier (5) is performed. Can be effectively suppressed.

Further, since the water in the water circulation circuit (2) is circulated irrespective of the ON / OFF state of the compressor (20), the water temperature in the water circulation circuit (2) can always be kept constant. Therefore, immediately after the blower (16) switches from the OFF state to the ON state, that is, immediately after the compressor (20) switches from the OFF state to the ON state, the moisture permeable membrane humidifier (5)
Can perform a predetermined amount of humidification.

<Third Embodiment> As shown in FIG. 7, a refrigeration apparatus (43) according to a third embodiment includes an ON / OF of a refrigerant circuit (3).
In conjunction with the F operation, both the pump (4) and the blower (16) are operated or stopped together.

As shown in FIG. 7, the present refrigerator (43) has a configuration in which the interlocking controller (26) is connected to the pump (4) and the blower (16) in the first embodiment. That is, the interlocking controller (26) operates both the pump (4) and the blower (16) when the compressor (20) of the refrigerant circuit (3) is operating, and operates the pump (4) when the compressor (20) is stopped. ) And blower (1
6) is configured to stop both.

Therefore, also in the present embodiment, when dehumidification is not performed, humidification is not performed, and dehumidification and humidification can always be performed simultaneously. Therefore, similarly to the first embodiment, there is no difference in timing between the dehumidifying operation and the humidifying operation, and the humidity can be controlled stably.

When the compressor (20) is stopped, the blower (16)
Therefore, humidification due to residual water in the moisture permeable humidifier (5) can be effectively suppressed. At this time, since the temperature of the moisture permeable humidifier (5) is suppressed from decreasing by stopping the blower (16), the pump (4) and the blower (16) are turned off.
When switching from the F state to the ON state, a moisture permeable humidifier
(5) quickly reaches the predetermined temperature. Thus, the compressor (20)
After the operation is resumed, the humidification of a predetermined amount can be started quickly.

Fourth Embodiment A refrigeration apparatus (44) according to a fourth embodiment shown in FIG. 8 is different from the refrigeration apparatus (1) of the first embodiment in that the pump is linked with the ON / OFF operation of the compressor (20).
Rather than switching the ON / OFF state of (4), hot water is supplied to the permeable membrane humidifier (5) when the compressor (20) is on, while hot water is supplied when the compressor (20) is off. To the tank (6) with the bypass pipe (32), stop supplying hot water to the moisture permeable humidifier (5), and
The water temperature in the tank (6) is always made uniform by stirring the water.

As shown in FIG. 8, the inlet pipe (1
8) is provided with a first solenoid valve (28). Bypass pipe
One end of (32) is the pump (4) of the inlet pipe (18) and the first solenoid valve (28)
And the other end is connected to the tank (6). The bypass pipe (32) is provided with a second solenoid valve (29).

In this embodiment, the interlocking controller (26) is connected to the first solenoid valve (28) and the second solenoid valve (29), and controls the opening and closing of these solenoid valves (28) and (29). Is configured.

The opening / closing control of the first solenoid valve (28) and the second solenoid valve (29) is performed as follows. That is, when the compressor (20) of the refrigerant circuit (3) is in the ON state, the interlocking controller (26) opens the first solenoid valve (28) and closes the second solenoid valve (29). As a result, circulating water at a predetermined temperature is supplied to the moisture permeable humidifier (5). On the other hand, the compressor (20)
In the F state, the interlocking controller (26) operates the first solenoid valve (2
8) is closed and the second solenoid valve (29) is opened. As a result, the flow of water to the moisture permeable humidifier (5) is cut off, and the water discharged from the pump (4) returns to the tank (6) through the bypass pipe (32). Then, the water in the tank (6) is stirred by the flow of water flowing out of the bypass pipe (32), and the water in the tank (6) is stirred.
(6) The temperature distribution of water inside is uniform.

Therefore, regardless of the presence or absence of the humidifying operation, the water always circulates in the tank (6). Therefore, even if the humidification operation is stopped for a long time, the temperature distribution in the tank (6) does not become uneven. Therefore, the refrigerant circuit
Immediately after the compressor (20) of (3) is turned from the OFF state to the ON state, it becomes easy to supply water of a predetermined temperature to the moisture permeable membrane humidifier (5).

<Fifth Embodiment> As shown in FIG. 9, a refrigeration apparatus (45) according to a fifth embodiment is different from the refrigeration apparatus (44) of the fourth embodiment.
In, the blower (16) is connected to the interlocking controller (26) together with the first solenoid valve (28) and the second solenoid valve (29), and the compressor (2
The start / stop control of the blower (16) is performed in conjunction with the ON / OFF operation of (0).

When the compressor (20) is ON, the interlocking controller (26) opens the first solenoid valve (28) and closes the second solenoid valve (29), and operates the blower (16). Let it.
As a result, the water discharged from the pump (4) is
(5) and the humidifying operation is performed. Meanwhile, the compressor (2
When (0) is in the OFF state, the interlocking controller (26)
The electromagnetic valve (28) is closed and the second electromagnetic valve (29) is opened, and the blower (16) is stopped. As a result, the pump
The water discharged from (4) is stored in the tank through the bypass pipe (32).
Returning to (6), the flow of water to the moisture permeable humidifier (5) is shut off. Further, when the blower (16) stops, the blowing to the moisture permeable humidifier (5) is stopped.

Therefore, also in the present embodiment, dehumidification and humidification can always be performed simultaneously, and the humidity can be controlled stably. In addition, since the water in the tank (6) is agitated and the temperature distribution of the water in the tank (6) is always uniformed, the moisture permeable humidifier (5) can be used immediately after the compressor (20) is turned on. ), Water at a predetermined temperature can be supplied stably, and a predetermined amount of humidification can be stably executed. Since the blower (16) is stopped when the compressor (20) is in the OFF state, the humidification of the moisture permeable humidifier (5) by the residual water can be effectively suppressed.

<Embodiment 6> As shown in FIG. 10, a refrigeration apparatus (46) according to Embodiment 6 differs from Embodiment 1 in that the moisture permeable humidifier (5) is located at a position higher than the tank (6). It was installed. That is, the humidifier (5) is located above the tank (6). Other configurations are the same as those of the refrigerator (1) of the first embodiment.

In the present refrigeration system (46), when the compressor (20) of the refrigerant circuit (3) is stopped, that is, when the pump (4) is stopped, the moisture permeable humidifier (5) is more than the tank (6). Because it is located above,
The water in the humidifier (5) flows down by gravity and is discharged. As a result, no water remains in the moisture permeable humidifier (5),
Only air is present in the moisture permeable membrane tube (15).

Therefore, in the present refrigerator (46), the first embodiment
In addition to the effect, when the compressor (20) is stopped, the moisture permeable humidifier
(5) Since no water remains in the humidifier, humidification by residual water can be reliably prevented. Therefore, it is possible to more stably control the humidity.

<Seventh Embodiment> A refrigeration apparatus (47) according to a seventh embodiment shown in FIG.
The pump (4) and the blower (16) are operated or stopped in conjunction with the ON / OFF operation of the compressor (20) in (3).

As shown in FIG. 11, the interlocking controller (26) of the refrigerator (47) includes not only the pump (4) but also the blower (1).
6) is also connected. This interlocking controller (26)
When the compressor (20) operates, both the pump (4) and the blower (16) operate, while when the compressor (20) stops, the pump (4) operates.
It is configured to stop both (4) and the blower (16).

Therefore, when the compressor (20) is turned off, the water in the moisture permeable humidifier (5) flows down and is discharged, and the air supply is stopped. Therefore, moisture permeable humidifier (5)
Even when a small amount of residual water remains inside, humidification can be reliably prevented. Therefore, humidification during non-dehumidification can be reliably prevented, and the reliability of humidity control can be improved. Further, drying of the moisture permeable humidifier (5) can be prevented.

<Eighth Embodiment> A refrigeration apparatus (48) according to an eighth embodiment shown in FIG. 12 is different from the refrigeration apparatus (47) of the seventh embodiment in that an air inlet (37) is provided to the moisture permeable humidifier (5). A purge solenoid valve (36) is provided in an air inlet pipe (37a) connected to the air inlet (37), and air is introduced when the compressor (20) is stopped to promote drainage. It was decided that.

The air inlet (37) is formed above the moisture permeable humidifier (5). The air inlet (37) has an air inlet pipe (3
7a) is fitted airtight. The air introduction pipe (37a) is provided with a purge solenoid valve (36) as opening / closing means.
The purge solenoid valve (36) is connected to the interlock controller (26), and is closed when the compressor (20) is in the ON state.
It is configured to be opened when (20) is in the OFF state. Therefore, when the purge solenoid valve (36) is opened, the prefabricated (27) is passed through the air inlet pipe (37a) and the air inlet (37).
While the air inside is guided to the permeable membrane humidifier (5), when the purge solenoid valve (36) is closed, the water in the permeable membrane humidifier (5) is prevented from leaking to the outside.

That is, the compressor (20) of the refrigerant circuit (3) is turned on.
When the state switches to the OFF state, the linked controller
(26) stops the pump (4) and the blower (16) and switches the purge solenoid valve (36) from the closed state to the open state. As a result, air flows into the moisture permeable membrane humidifier (5) from above, and water in the moisture permeable membrane humidifier (5) flows down quickly.
Accordingly, immediately after the compressor (20) is stopped, the inside of the moisture permeable membrane humidifier (5) is in a water-free state, so that humidification due to residual water can be more reliably prevented.

<Other Embodiments> In the second embodiment, the moisture-permeable membrane humidifier (5) may be installed above the tank (6). Even in this case, the same effect as in the second embodiment can be obtained.

Further, in the fourth embodiment, the moisture-permeable membrane humidifier is used.
(5) may be installed above the tank (6).

[0097]

As described above, according to the first aspect, the humidifying operation of the humidifying means is performed during the operation of the refrigerator.
Since the humidifying operation of the humidifying means is stopped when the refrigerator is stopped, dehumidification and humidification can always be performed in conjunction with each other, and the responsiveness of the humidifying operation can be improved.

According to the second aspect of the present invention, since the circulation driving means is operated or stopped in conjunction with the refrigerator, dehumidification and humidification can be performed in conjunction with each other, thereby improving the responsiveness of the humidification operation. It is possible to do.

According to the third aspect of the present invention, the air blowing means is operated or stopped in conjunction with the refrigerator, so that the dehumidification and the humidification can be performed in conjunction with each other, thereby improving the responsiveness of the humidifying operation. Becomes possible.

According to the fourth aspect, both the circulation driving means and the air blowing means are operated or stopped in conjunction with the refrigerator, so that the dehumidification and the humidification can be executed in a surely linked manner. In addition, the responsiveness of the humidifying operation can be further improved.

According to the fifth aspect of the present invention, water is supplied to the humidifying means when the refrigerator is in operation, while water is not supplied to the humidification means but is bypassed and returned to the storage means when the refrigerator is stopped. In addition, dehumidification and humidification can be linked. In addition, since the water in the storage means constantly circulates, the water temperature of the storage means can be made uniform, and water at a predetermined temperature can be supplied to the humidification means immediately after the start of the operation of the refrigerator.

According to the sixth aspect of the present invention, when the refrigerator is operated, water is supplied to the humidifying means and the blowing means is operated.
When the refrigerator is stopped, water is not supplied to the humidifying means but is bypassed and returned to the storage means, and the air blowing means (16) is stopped, so that dehumidification and humidification can be reliably linked. Also, since the water in the storage means constantly circulates,
The water temperature of the storage unit can be made uniform, and water at a predetermined temperature can be supplied to the humidifying unit immediately after the operation of the refrigerator starts.

According to the seventh aspect, since the humidifying means is provided above the storage means, the water in the humidifying means can be naturally discharged by gravity when the refrigerator is stopped. Therefore, unnecessary humidification due to residual water can be prevented.

According to the eighth aspect, when the refrigerator is stopped, air is introduced into the humidifying means through the air intake, so that drainage of the humidifying means is promoted, and humidification by residual water is performed immediately after the refrigerator is stopped. Can be reliably prevented from occurring.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a refrigeration apparatus according to a first embodiment.

FIG. 2 is a flowchart showing a method for setting a target water temperature.

FIG. 3 is an air line diagram showing an inlet air state and an outlet air state of the moisture permeable humidifier.

FIG. 4 is a diagram showing a dehumidification amount with respect to an inlet air state.

FIG. 5 is a diagram showing a humidification amount with respect to an inlet air state and a water temperature in a moisture permeable humidifier.

FIG. 6 is a configuration diagram of a refrigeration apparatus according to Embodiment 2.

FIG. 7 is a configuration diagram of a refrigeration apparatus according to a third embodiment.

FIG. 8 is a configuration diagram of a refrigeration apparatus according to a fourth embodiment.

FIG. 9 is a configuration diagram of a refrigeration apparatus according to a fifth embodiment.

FIG. 10 is a configuration diagram of a refrigeration apparatus according to a sixth embodiment.

FIG. 11 is a configuration diagram of a refrigeration apparatus according to a seventh embodiment.

FIG. 12 is a configuration diagram of a refrigeration apparatus according to Embodiment 8.

FIG. 13 is a diagram showing changes over time in temperature and humidity based on conventional humidification control.

[Explanation of symbols]

 (2) Water circulation circuit (3) Refrigerant circuit (4) Pump (5) Moisture permeable humidifier (6) Tank (7) Heater (8) Water temperature sensor (9) Temperature controller (15) Moisture permeable tube (16 ) Blower (20) Compressor (24) Evaporator (26) Interlock controller (27) Prefab

 ──────────────────────────────────────────────────の Continued on front page (72) Inventor Haruo Onishi 1304 Kanaokacho, Sakai City, Osaka Daikin Industries Inside Kanaoka Plant of Sakai Seisakusho Co., Ltd. (72) Keiji Arii 1304 Kanaokacho, Sakai City, Osaka Daikin Industries Stock Sakai Factory Kanaoka Factory

Claims (8)

[Claims] An interior (27) cooled by a refrigerator (3).
A water passage (15) partitioned from an air passage by a porous member that prevents the passage of water and allows only water vapor to pass therethrough. Humidifying means (5) for supplying water vapor to the air through the porous member, and storing means for storing the water supplied to the humidifying means (5) while controlling the temperature and collecting the water flowing through the humidifying means (5) (6) and a circulating drive means for supplying water from the storage means (6) to the humidifying means (5)
(4) are connected in order, a blowing means (16) for supplying air in the refrigerator to the humidifying means (5), and the humidifying means (4) when the refrigerator (3) is operated. 5) While the humidifying operation is performed, the humidifying means is stopped when the refrigerator (3) is stopped.
(5) A humidifier comprising: a control unit (26) for stopping the humidifying operation. 2. The humidifier according to claim 1, wherein the control means (26) is a circulating drive means when the refrigerator (3) operates.
(4) is operated to circulate the water in the water circulation circuit (2) while the circulating drive means (4) is stopped when the refrigerator (3) is stopped. apparatus. 3. The humidifying device according to claim 1, wherein the control means (26) comprises a blower means (16) when the refrigerator (3) operates.
The humidifier is characterized in that the humidifier is configured to stop the blower (16) when the refrigerator (3) is stopped while operating the chiller (3). 4. The humidifier according to claim 1, wherein the control means (26) is a circulating drive means when the refrigerator (3) operates.
(4) and the blower (16) while operating the refrigerator (3)
A humidifier, wherein the circulating drive means (4) and the air blowing means (16) are stopped when the operation is stopped. 5. The humidifier according to claim 1, wherein the water circulation circuit (2) is provided with a first on-off valve (18) provided on a pipe (18) between the circulation driving means (4) and the humidification means (5). 28), one end of which is connected to the circulation drive means (4) in the pipe (18) and the first solenoid valve.
(28), and a bypass pipe (32) for bypassing water from the circulation driving means (4) to the storage means (6), and a second on-off valve ( 29), and the control means (26) is provided with the first on-off valve when the refrigerator (3) is operated.
(28) is opened and the second on-off valve (29) is closed, while when the refrigerator (3) is stopped, the first on-off valve (28) is closed and the second on-off valve (29) is closed. A humidifier, wherein the humidifier is configured to open. 6. The humidifying device according to claim 1, wherein the water circulation circuit (2) is a first on-off valve provided on a pipe (18) between the circulation driving means (4) and the humidification means (5). (28), one end of the circulating drive means (4) in the pipe (18) and the first on-off valve
(28), and a bypass pipe (32) for bypassing water from the circulation driving means (4) to the storage means (6), and a second on-off valve ( 29), and the control means (26) is provided with the blowing means (16) when the refrigerator (3) is operated.
And while the first on-off valve (28) is opened and the second on-off valve (29) is closed, when the refrigerator (3) is stopped, the blowing means (16) is stopped and the A humidifier, wherein the first on-off valve (28) is closed and the second on-off valve (29) is opened. 7. The humidifying device according to claim 2, wherein the humidifying means (5) is provided when the refrigerator (3) is stopped.
(5) A humidifying device characterized in that the humidifying device is provided above the storage means (6) so that water in the inside flows down and is discharged. 8. The humidifying device according to claim 7, wherein the humidifying means (5) is formed with an air inlet (37) for introducing air into the humidifying means (5) to promote discharge of water. When the refrigerator (3) is stopped, air is introduced into the humidifying means (5) through the air intake (37), while when the refrigerator (3) is operated, air from the air intake (37) is introduced. A humidifier provided with an opening / closing means (36) for preventing the introduction of water.