JP6934392B2 - Humidity control cabinet - Google Patents

Description

The present invention relates to a humidity control cabinet such as a dough conditioner that matures, ferments, or the like in a state where the bread dough is adjusted in humidity before baking the bread dough.

Patent Document 1 discloses an invention of a temperature / humidity control cabinet for bread making that thaw, ripen, and ferment bread dough. This temperature / humidity control cabinet for bread making contains a storage room that houses trays in multiple stages, a temperature control means that controls the temperature of the storage room, a humidity control means that controls the humidity of the storage room, and air in the storage room. It is equipped with a circulation means that circulates to make the temperature and humidity uniform. In this temperature and humidity control cabinet for bread making, the air in the storage room is circulated by the circulation means in a state where the temperature and humidity are controlled by the temperature control means and the humidity control means, and the bread dough stored in the storage room is thawed. Aging and fermentation processes are being carried out.

Japanese Unexamined Patent Publication No. 2000-300155

In the humidity control means of the temperature / humidity control cabinet for bread making described above, the humidification mist is supplied to the storage chamber by an ultrasonic humidifier, but the ultrasonic humidifier has a water storage tank and an ultrasonic humidifier. Since it is composed of a sound wave transducer, a lid, and a duct, there is a problem that the number of parts is large and the cost is high. In addition, although some water storage tanks are provided with a heater to supply humidifying mist, it takes a long time for the water in the water storage tank to evaporate and become a humidifying mist, and for humidification from inside the water storage tank. Even if it was desired to suppress the generation of mist, it could not be suppressed, and there was a problem that the responsiveness of the humidification control was not good. In addition, although some water is sprayed by spraying, even if only water is sprayed in the form of mist, the momentum is weak and there is a risk that mist will not be easily distributed throughout the storage. An object of the present invention is to provide a humidity control cabinet provided with a responsive humidifier at no cost.

In order to solve the above problems, the present invention is a humidity control cabinet provided with a storage cabinet for storing stored items, a circulation fan for circulating air in the storage cabinet, and a humidifier for humidifying the inside of the storage cabinet. The humidifier has a spray nozzle that sprays water in the form of a mist, a water supply pipe that supplies water to the spray nozzle, an air supply pipe that supplies air to the spray nozzle, and air that sends air to the spray nozzle via the air supply pipe. It is equipped with a compressor, and the spray nozzle ejects the water supplied from the water supply pipe and the air supplied from the air supply pipe to spray the water in the form of a mist. It is arranged in the vertically extending vertical duct passage provided on the side of the storage, and the direction in which the water sprayed from the spray nozzle intersects with the direction in which the air descending by the circulation fan flows in the vertical duct passage. It provides a humidity control cabinet characterized by the fact that it has been used.

In the humidity control cabinet configured as described above, the humidifier has a spray nozzle that sprays water in the form of a mist, a water supply pipe that supplies water to the spray nozzle, an air supply pipe that supplies air to the spray nozzle, and an air supply pipe. and an air compressor for feeding air to the spray nozzle through the spray nozzle, with jetting water supplied from the water supply pipe, so as to eject air supplied from the supply pipe, water atomized It is designed to be sprayed , and is arranged in a vertically extending vertical duct passage provided on the side of the storage, and the spraying direction of the water sprayed from the spray nozzle is lowered by a circulation fan in the vertical duct passage. The direction intersects with the direction of air flow. As a result, the water sprayed in the form of mist with the air is vigorously ejected with fine fine particles, and the fine particles of water ejected with the air can be quickly vaporized to quickly raise the humidity in the storage . In addition, the mist-like water sprayed from the spray nozzle in the direction orthogonal to the flow direction of the descending air by the circulation fan efficiently contacts the descending air in the vertical duct passage and becomes easy to vaporize, and is sprayed from the spray nozzle. The water was quickly vaporized in the vertical duct passage.

In the humidity control cabinet configured as described above, it is preferable that the water outlet of the spray nozzle is arranged downstream of the air outlet in the ejection direction, and when this is done, the scale contained in the water is contained. Even if the component adheres to the water outlet of the spray nozzle, the scale component is blown off by the air ejected from the air outlet, so it is necessary to prevent the scale component from sticking to the water outlet of the spray nozzle. did it.

It is a front view of the temperature and humidity control cabinet. It is a vertical sectional view of the front part of FIG. 1 along the left-right direction. It is a cross-sectional view of AA. It is a schematic diagram of the cooling device, the heating device and the humidifier of the greenhouse degree control cabinet. It is a cross-sectional view of BB. It is a partially enlarged sectional view of a spray nozzle. It is a block diagram which shows the control device. It is a partially enlarged sectional view of the spray nozzle corresponding to FIG. 6 of another embodiment. It is a schematic diagram corresponding to FIG. 4 in which water is sent to a spray nozzle by a pressurizing pump of still another embodiment.

Hereinafter, as an embodiment of the humidity control cabinet of the present invention, an embodiment of the temperature / humidity control cabinet in which not only the humidity in the storage cabinet but also the temperature can be adjusted will be described with reference to the accompanying drawings. The temperature / humidity control cabinet (humidity control cabinet) 10 of the present invention is called a dough conditioner, and before baking the bread dough, each step of freezing (freezing), retard (refrigerating), preheating and proofing (fermentation) is performed in order. Is what you do. In the temperature / humidity control cabinet 10, the temperature is controlled according to each step when each of the above steps is executed, and the humidity is controlled in addition to the temperature control in the preheating and proofing steps.

As shown in FIGS. 1 and 2, the temperature / humidity control cabinet 10 has a storage cabinet 12 for storing bread dough (stored matter) in a portion of the housing 11 excluding the right side portion, and a machine room in the right portion of the housing 11. It is equipped with 13. As shown in FIG. 3, a front opening 12a for putting in and taking out a tray on which bread dough is placed is provided in the front of the storage 12, and a door 14 for opening and closing the door 14 can be opened and closed in the front opening 12a. It is provided.

As shown in FIGS. 2 and 4, partition plates 15 are provided on the right side and the bottom of the storage 12, and the right side and the bottom partitioned by the partition 15 of the storage 12 control the temperature and humidity. The duct passage 16 is used to send the adjusted air to the storage 12. The duct passage 16 includes a vertical duct passage 16a arranged on the right side of the storage 12 and a horizontal duct passage 16b arranged on the bottom of the storage 12. Further, the upper portion of the vertical duct passage 16a protrudes toward the machine room 13, and this portion accommodates the evaporator 25 of the cooling device 20 and the heater 31 of the heating device 30, which will be described later, to cool the air. It is a temperature control space 16c for heating.

As shown in FIGS. 2 and 4, a circulation fan 17 is attached to the upper part of the partition plate 15 arranged on the right side of the storage 12 and as shown by the arrow of the alternate long and short dash line in FIG. The air in the storage 12 is guided to the duct passage 16 by the circulation fan 17. The air guided to the duct passage 16 is cooled or heated in the temperature control space 16c to adjust the temperature, and is sent to the left side portion of the storage 12 through the vertical duct passage 16a and the horizontal duct passage 16b. There is.

As shown in FIGS. 4 and 5, a temperature sensor 18 and a humidity sensor 19 are arranged in the temperature control space 16c, and the temperature sensor 18 detects the temperature in the storage 12 and is a humidity sensor. Reference numeral 19 denotes a humidity inside the storage 12.

As shown in FIGS. 2, 4 and 5, an evaporator 25 of a cooling device 20 for cooling the inside of the storage 12 is arranged in the temperature control space 16c. The cooling device 20 cools the air in the storage 12 passing through the temperature control space 16c to cool the inside of the storage 12. The cooling device 20 uses a well-known refrigerant circuit, and includes a compressor 21 for compressing the refrigerant, a condenser 22 for cooling the compressed refrigerant gas, a dryer 23 for removing water contained in the liquefied refrigerant, and liquefaction. A capillary tube (expansion means) 24 for expanding the refrigerant and an evaporator 25 for vaporizing the expanded liquefied refrigerant to cool the inside of the storage 12 are provided. The evaporator 25 is arranged in the temperature control space 16c of the duct passage 16, and other parts are arranged in the machine room 13. In this cooling device 20, the refrigerant gas compressed by the compressor 21 is cooled by the condenser 22 to become a liquefied refrigerant, and the liquefied refrigerant is expanded by the capillary tube 24 through the dryer 23 and sent to the evaporator 25. , The air in the temperature control space 16c is cooled when vaporized by the evaporator 25. Further, the compressor 21 employs an inverter type motor and can control the rotation speed. Further, the condenser 22 is provided with a cooling fan 22a for cooling the refrigerant, and the cooling fan 22a employs an inverter type motor so that the rotation speed can be controlled. Although a capillary tube is adopted as the expansion means, the present invention is not limited to this, and an expansion valve such as an electronic expansion valve may be adopted.

As shown in FIGS. 2, 4 and 5, a heating device 30 for heating the inside of the storage 12 is provided in the temperature control space 16c. The heating device 30 heats the air in the storage 12 passing through the temperature control space 16c to heat the inside of the storage 12. The heating device 30 includes a heater 31 that heats the air in the temperature control space 16c, and a bracket 32 that attaches the heater 31 to the temperature control space 16c. The heater 31 is attached to the lower side of the evaporator 25 of the cooling device 20 by the bracket 32. The heater 31 uses a glass tube heater, and can not only efficiently heat the air in the temperature control space 16c by radiant heat, but also has a function as a defrost heater of the evaporator 25 arranged on the upper side. ..

As shown in FIGS. 2, 4 and 5, a humidifier 40 is arranged in the vertical duct passage 16a of the duct passage 16, and the humidifier 40 humidifies the inside of the storage 12. The humidifier 40 includes a spray nozzle 41 that sprays water in a mist form, a water supply pipe 42 that supplies water from a water supply source such as a water supply to the spray nozzle 41, and an air supply pipe 43 that supplies air to the spray nozzle 41. It is provided with an air compressor 44 that sends air to a spray nozzle in a pressurized state via a trachea 43. The water supply pipe 42 is connected to a water supply source such as a water supply, and the water supply pipe 42 is interposed with a pressure reducing valve 42a and a water supply valve 42b. Further, a drainage pipe 45 is connected to the water supply pipe 42 downstream of the water supply valve 42b, and a drainage valve 45a is interposed in the drainage pipe 45.

As shown in FIG. 6, the spray nozzle 41 ejects the water supplied from the water supply pipe 42 and also ejects the air supplied from the air supply pipe 43, so that the water ejected in the form of mist together with the air is ejected. It is designed to be sprayed with fine particles. The spray nozzle 41 has a double cylinder, and a water outlet 41a is provided at the tip of the inner cylinder and an air outlet 41b is provided at the tip of the outer cylinder. ing. Further, the water outlet 41a is arranged downstream of the air outlet 41b in the direction of water and air ejection, and even if a scale component contained in water adheres to the water ejection port 41a, the scale component Is blown away by the air ejected from the upstream side so that the scale component does not stick to the water outlet 41a.

As shown in FIG. 5, the spray nozzle 41 is arranged at the rear portion of the vertical duct passage 16a at the same height as the lower portion of the temperature control space 16c. The spraying direction from the tip of the spray nozzle 41 is directed from the rear part of the vertical duct passage 16a to the front, and is in a direction intersecting (orthogonal) with the air descending the vertical duct passage 16a by the circulation fan 17. When the water supply valve 42b is opened and the air compressor 44 is operated, water from the water supply pipe 42 and air from the air supply pipe 43 flow into the spray nozzle 41, and the water is sprayed from the spray nozzle 41 in the form of mist. Further, when the water is not sprayed from the spray nozzle 41 in the form of a mist, the water remaining in the water supply pipe 42 is discharged from the drain pipe 45 by opening the drain valve 45a so that the water does not remain in the water supply pipe 42. It is designed to do.

As shown in FIG. 7, the temperature / humidity control cabinet 10 includes a control device 50, and the control device 50 includes a circulation fan 17, a temperature sensor 18, a humidity sensor 19, and a cooling device 20 (compressor 21, condenser 22). It is connected to the fan motor 22b), the heating device 30 (heater 31), and the humidifier 40 (water supply valve 42b, air compressor 44, and drain valve 45a). The control device 50 includes a microcomputer (not shown), and the microcomputer includes a CPU, a RAM, a ROM, and a timer (all of which are not shown) connected via a bus. The control device 50 includes a fermentation program in which the bread dough in the storage 12 is sequentially executed in the ROM by each step of freezing (freezing), retarding (refrigerating), preheating, and proofing (fermentation). The temperature / humidity control cabinet 10 can selectively execute at least one of each step of freezing (freezing), retarding (refrigerating), preheating and proofing (fermentation).

In the fermentation program, the inside of the storage 12 is maintained at -5 ° C for 3 hours in the freeze process, the inside of the storage 12 is maintained at 0 ° C to 2 ° C in the retard process, and the storage 12 is maintained in the preheating process. The inside is controlled so that the humidity of 75 to 80% is maintained at 15 ° C. to 18 ° C. for 2 hours, and the humidity of 75 to 85% is maintained at 28 ° C. to 35 ° C. for 1 hour in the proof (fermentation) step. In this fermentation program, the time required for the freeze (freezing) step, the preheating step and the proofing (fermentation) step is reduced from the time required from the start time of the freeze (freezing) step to the preset end time of the proof (fermentation) step. The remaining time is controlled to execute the retard (refrigeration) process. The temperature, humidity and time are just examples and can be changed depending on the type of bread dough used for fermentation.

The control when the fermentation program is executed will be described below. In the freeze (freezing) step, the control device 50 controls the operation of the cooling device 20 based on the temperature detected by the temperature sensor 18 to control the temperature inside the storage 12 so as to be −5 ° C. Cooling when the detection temperature of the temperature sensor 18 detects a set upper limit temperature higher than the set temperature of the storage 12 of -5 ° C (the set upper limit temperature is set, for example, 1 ° C higher than the set temperature, and the same applies hereinafter). The device 20 is operated, and the detection temperature of the temperature sensor 18 is set to be lower than the set temperature of the storage 12 of −5 ° C. ) Is detected, the operation of the cooling device 20 is stopped. When the cooling device 20 is operating, the air sent from the inside of the storage 12 to the temperature control space 16c of the duct passage 16 by the circulation fan 17 is cooled by exchanging heat with the evaporator 25. As shown by the arrow of the alternate long and short dash line in FIG. 4, the cooled air is sent to the storage 12 again through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is cooled by the cooled air. Will be done.

When 3 hours have passed since the freeze step was started, the control device 50 executes the retard step. In the retard (refrigerating) step, the control device 50 controls the operation of the cooling device 20 based on the temperature detected by the temperature sensor 18 to control the temperature inside the storage 12 so as to be 2 ° C. When the detection temperature of the temperature sensor 18 detects a set upper limit temperature higher than the set temperature of the storage 12 by 2 ° C, the cooling device 20 is operated, and the detection temperature of the temperature sensor 18 is 2 ° C, which is the set temperature of the storage 12. When a lower set lower limit temperature is detected, the operation of the cooling device 20 is stopped. When the cooling device 20 is operating, the air sent from the inside of the storage 12 to the temperature control space 16c of the duct passage 16 by the circulation fan 17 is cooled by exchanging heat with the evaporator 25. As shown by the arrow of the alternate long and short dash line in FIG. 4, the cooled air is sent to the storage 12 again through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is cooled by the cooled air. Will be done.

When a predetermined time has elapsed from the start of the retard (refrigeration) process, the control device 50 executes the preheating process. In the preheating step, the control device 50 controls the operation of the cooling device 20 or the heater 31 based on the temperature detected by the temperature sensor 18, so that the temperature inside the storage 12 is controlled to 18 ° C., and the humidity is controlled. By controlling the operation of the humidifier 40 based on the detected humidity of the sensor 19, the humidity inside the storage 12 is controlled to be 85%. In an environment where the room temperature is higher than the set temperature of 18 ° C, the cooling device 20 is operated when the detection temperature of the temperature sensor 18 detects a set upper limit temperature higher than the set temperature of the storage 12 of 18 ° C. It is controlled so that the operation of the cooling device 20 is stopped when the detection temperature of the temperature sensor 18 detects a set lower limit temperature lower than the set temperature of the storage 12 of 18 ° C. When the cooling device 20 is operating, the air sent from the inside of the storage 12 to the temperature control space 16c of the duct passage 16 by the circulation fan 17 is cooled by exchanging heat with the evaporator 25. As shown by the arrow of the alternate long and short dash line in FIG. 4, the cooled air is sent to the storage 12 again through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is cooled by the cooled air. Will be done.

On the other hand, in an environment where the room temperature is lower than the set temperature of 18 ° C., the heater 31 is operated when the detection temperature of the temperature sensor 18 detects a set lower limit temperature lower than the set temperature of the storage 12 of 18 ° C. When the detection temperature of the temperature sensor 18 detects a set upper limit temperature higher than the set temperature of the storage 12 of 18 ° C., the operation of the heater 31 is stopped. When the heater 31 is operating, the air sent from the inside of the storage 12 to the temperature control space 16c of the duct passage 16 by the circulation fan 17 is heated by the heater 31. As shown by the arrow of the alternate long and short dash line in FIG. 4, the heated air is sent to the storage 12 again through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is warmed by the heated air. Be done.

Further, in the preheating step, the control device 50 not only controls the temperature described above, but also controls the humidity in the storage 12 so as to be 75%. When the control device 50 detects a set lower limit humidity whose detection humidity by the humidity sensor 19 is lower than 75% (the set lower limit humidity is set, for example, 5% lower than the set humidity, and the same applies hereinafter), the control device 50 humidifies the humidity by the humidifier 40. It is controlled like this. When the control device 50 detects the lower limit set humidity in which the humidity detected by the humidity sensor 19 is lower than 75%, the water supply valve 42b is opened for 2 seconds, which is the spraying time, and water is atomized from the spray nozzle 41 for 2 seconds, which is the spraying time. The water supply valve 42b is controlled to be repeatedly executed by closing the water supply valve 42b at a waiting time according to the temperature and / or humidity of the storage 12 and waiting for the water to be sprayed. Further, when the control device 50 detects a set upper limit humidity in which the humidity detected by the humidity sensor 19 is higher than 75% (the set upper limit humidity is set, for example, 5% higher than the set humidity, and the same applies hereinafter), the humidifier 40 detects it. It is controlled to stop humidification. When water is sprayed from the spray nozzle 41 in the form of mist, the air sent from the storage 12 to the duct passage 16 by the circulation fan 17 is the water sprayed from the spray nozzle 41 in the vertical duct passage 16a. It is vaporized and humidified, and as shown by the arrow of the two-point chain line in FIG. 4, the humidified air is sent to the storage 12 again through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is inside. It is humidified by the humidified air.

Two hours after the start of the preheating step, the control device 50 executes the fermentation (proofing) step. In the proof (fermentation) step, the control device 50 controls the operation of the heater 31 based on the detection temperature of the temperature sensor 18, so that the temperature inside the storage 12 is controlled to 35 ° C., and the humidity sensor By controlling the operation of the humidifier 40 based on the detected humidity of 19, the humidity inside the storage 12 is controlled to be 85%.

When the detection temperature of the temperature sensor 18 detects a set lower limit temperature lower than 35 ° C., which is the set temperature of the storage 12, the heater 31 is controlled to operate, and the detection temperature of the temperature sensor 18 is the set temperature of the storage 12. When a set upper limit temperature higher than a certain 35 ° C. is detected, the operation of the heater 31 is controlled to be stopped. When the heater 31 is operating, the air sent from the inside of the storage 12 to the temperature control space 16c of the duct passage 16 by the circulation fan 17 is heated by the heater 31. As shown by the arrow of the alternate long and short dash line in FIG. 4, the heated air is sent to the storage 12 again through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is warmed by the heated air. Be done.

Further, the control device 50 not only controls the temperature but also controls the humidity in the storage 12 so as to be 85%. The control device 50 controls the humidifier 40 to humidify when the humidity sensor 19 detects a set lower limit humidity lower than 85%, and detects a set upper limit humidity where the humidity sensor 19 detects a set upper limit humidity higher than 85%. It is controlled so as to stop the humidification by the humidifier 40. When water is sprayed from the spray nozzle 41 in the form of mist, the air sent from the storage 12 to the duct passage 16 by the circulation fan 17 is the water sprayed from the spray nozzle 41 in the vertical duct passage 16a. It is vaporized and humidified, and as shown by the arrow of the two-point chain line in FIG. 4, the humidified air is sent to the storage 12 again through the vertical duct passage 16a and the horizontal duct passage 16b, and the inside of the storage 12 is inside. It is humidified by the humidified air. One hour after starting the proofing (fermentation) step, the control device 50 ends the fermentation program.

In the temperature / humidity control cabinet (humidity control cabinet) 10 configured as described above, the humidifier 40 includes a spray nozzle 41 that sprays water in a mist form, a water supply pipe 42 that supplies water to the spray nozzle 41, and a spray nozzle. It includes an air supply pipe 43 that supplies air to the air supply pipe 43, and an air compressor 44 that sends air to the spray nozzle via the air supply pipe 43. The spray nozzle 41 ejects the water supplied from the water supply pipe 42 and the air supplied from the air supply pipe 43 so as to spray the water in a mist form. By doing so, the water sprayed in the form of mist together with the air is vigorously ejected with fine fine particles, and the water of the fine particles ejected together with the air is quickly vaporized to raise the humidity in the storage 12. The inside of the storage 12 can be well humidified by the water sprayed from the spray nozzle 41. Further, since the water outlet 41a of the spray nozzle 41 is arranged downstream of the air outlet 41b in the ejection direction, the scale component contained in the water adheres to the water outlet 41a of the spray nozzle 41. However, since the scale component is blown off by the air ejected from the air outlet 41b, it was possible to prevent the scale component from sticking to the water ejection port 41a of the spray nozzle 41.

Further, in this embodiment, the spraying direction of water by the spray nozzle 41 is a direction orthogonal to (intersecting) the direction of air flow by the circulation fan 17. By doing so, the mist-like water sprayed from the spray nozzle 41 efficiently contacts the air flowing in the direction orthogonal to (crossing) by the circulation fan 17 and easily vaporizes, and the water sprayed from the spray nozzle 41 Was quickly vaporized in the duct passage 16, and the inside of the storage 12 could be humidified with good responsiveness.

The direction in which the water is sprayed by the spray nozzle 41 is defined as the direction orthogonal to (intersects) the direction in which the air flows by the circulation fan 17, but the present invention is not limited to this, and the direction in which the water is sprayed by the spray nozzle 41 is defined as the circulation fan 17. The air may be sprayed in the same direction as the air flow, that is, downward. Further, the water spraying direction of the spray nozzle 41 may be opposite to the air flow direction of the circulation fan 17, that is, the water may be sprayed upward.

In the temperature / humidity control cabinet (humidity control cabinet) 10 of another embodiment, the spray nozzle 41 of the humidifier 40 is replaced with the spray nozzle 41A shown in FIG. The spray nozzle 41A is such that the water supplied from the water supply pipe 42 is mixed with the air supplied from the air supply pipe 43 and sprayed in the form of mist. Even when the spray nozzle 41A is used, the water sprayed in the form of mist together with the air is vigorously ejected with fine fine particles, and the fine water ejected with the air is quickly vaporized and stored in the storage 12 The humidity inside can be increased, and the water sprayed from the spray nozzle 41A can be humidified in the storage 12 with good responsiveness. The water spraying direction by the spray nozzle 41A may be orthogonal (intersect) to the air flow direction by the circulation fan 17, or the water spray direction by the spray nozzle 41A may be the same as the air flow direction by the circulation fan 17. It may be sprayed in the direction, that is, downward. Further, the water spraying direction of the spray nozzle 41A may be opposite to the air flow direction of the circulation fan 17, that is, the water may be sprayed upward.

In the temperature / humidity control cabinet (humidity control cabinet) 10 of still another embodiment, the humidifier 40 is replaced with the humidifier 40B shown in FIG. The humidifier 40B includes a spray nozzle 41B that sprays water in a mist form, a water supply pipe 42B that supplies water to the spray nozzle 41B, and a water supply pipe 42B that sends water to the spray nozzle 41B in a pressurized state. It is equipped with a pressure pump 46B. In this humidifier 40B, the spray nozzle sprays the water supplied from the water supply pipe 42B in the form of mist from the spray nozzle 41B in a pressurized state by the pressurizing pump 46B. Even in this way, the water sprayed in the form of mist with the air is vigorously ejected with fine fine particles, and the water of the fine particles ejected with the air is quickly vaporized to raise the humidity in the storage 12. It is possible to humidify the water sprayed from the spray nozzle 41B into the storage 12 with good responsiveness. The water spraying direction by the spray nozzle 41B may be orthogonal (intersect) to the air flow direction by the circulation fan 17, or the water spray direction by the spray nozzle 41B is the same as the air flow direction by the circulation fan 17. It may be sprayed in the direction, that is, downward. Further, the water spraying direction of the spray nozzle 41B may be opposite to the air flow direction of the circulation fan 17, that is, the water may be sprayed upward.

10 ... Humidity control cabinet, 12 ... Cooking cabinet, 17 ... Circulation fan, 20 ... Cooling device, 30 ... Heating device, 40, 40B ... Humidifier, 41, 41A, 41B ... Spray nozzle, 42 ... Water supply pipe, 43 ... Supply Trachea, 44 ... air compressor, 46B ... pressurizing pump, 50 ... control device.

Claims (2)

A storage for storing things and
A circulation fan that circulates the air in the storage,
A humidity control cabinet equipped with a humidifier that humidifies the inside of the storage cabinet.
The humidifier has a spray nozzle that sprays water in a mist form, a water supply pipe that supplies water to the spray nozzle, an air supply pipe that supplies air to the spray nozzle, and air to the spray nozzle via the air supply pipe. Equipped with an air compressor that sends out
The spray nozzle, said with jetting water supplied from the water supply pipe, the so as to jet the supplied air from the supply pipe, the water be those that so as to spray a mist, the housing It is placed in the vertical duct passage that extends vertically on the side of the warehouse.
A humidity control chamber characterized in that the spraying direction of water sprayed from the spray nozzle is a direction intersecting the flow direction of the descending air by the circulation fan in the vertical duct passage. In the humidity control cabinet according to claim 1,
A humidity control cabinet characterized in that the water outlet of the spray nozzle is arranged downstream of the air outlet in the ejection direction .

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