JPH0970225A - Mushroom growing house and mushroom growing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable increase in the utilization efficiency of a site area and the keeping of the environment suitable for mushroom growing by suppressing the temperature difference between the upper part and lower part inside a house. SOLUTION: Poles 2 are stood, and cross-beams 3 are bridged between the poles to construct frame works 5. Heat insulating panels having a water proofing surface on its outside are placed between the poles as inside walls, and heat insulating panels are fixed at the ceiling. A heat insulated room 8 is formed by surrounding with the heat insulating panels of the ceiling and the inside walls. Plural indoor units 17 of an air conditioner are placed at upper positions of the insulating room in a state where wind blows out in lateral directions and cold wind from units side by side collides to each other. An exhauster 20 having intake ports 23 at lower parts of the insulating room is installed. Outlet ports 28 of an outer air-introducing apparatus 25 are opened ant upper parts of the insulating room 8.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a mushroom cultivating house for cultivating mushrooms such as shiitake mushrooms, shimeji mushrooms and nameko mushrooms.

[0002]

2. Description of the Related Art In a conventional mushroom culture house, columns and beams are made of steel frames, and exterior materials such as colored steel plates are attached between the columns to form an outer wall. Interior materials are attached to the inside of the outer wall to form an inner wall. A heat insulating material was put between the inner wall and the outer wall.

In a conventional mushroom culture house, a shelf is installed indoors, and a cultivation bottle and a fungal bed block are placed on the shelf, but the shelf is taken into consideration by the workability of the worker, that is, the worker The height was easily accessible, and in general, the maximum height was 6 stages in consideration of the height of cultivation bottles and fungal bed blocks.

[0004]

[Problems to be Solved by the Invention] The amount of cultivation per unit area is limited only by installing a shelf about the height of the worker, and it is difficult to improve the utilization efficiency of the site area. In order to improve the utilization efficiency of the site area, it is possible to increase the height of the ceiling of the culture house to a higher level than in the past and increase the number of shelves, but simply increasing the height should be used for mushroom cultivation. I can't. That is, in mushroom cultivation, during growth, oxygen is consumed to generate carbon dioxide and heat is generated, but if the culture house is simply raised, a temperature difference occurs between the upper part and the lower part of the room. , There is a difference in growth between what is cultivated at the bottom of the shelf and what is cultivated at the top. In addition, in order to eliminate the temperature difference in the room,
It is not possible to avoid stagnation by simply circulating the air in the room by installing the blowers in the same air-blowing direction, and particularly stagnation is likely to occur in the corners of the room. And, if the space between the cultivation shelves and between the cultivation bottles is not wide, the air will not circulate. Further, simply circulating the carbon dioxide will increase the indoor carbon dioxide concentration, and will not sufficiently ventilate the medium such as the bacterial bed block or cultivation bottle where carbon dioxide gas is actually generated. The medium is a portion where mushroom fungi are planted, and generally sawdust is mixed with bran or the like as a nutrient and water.

Further, in the conventional mushroom cultivating house, since the exterior material is attached, not only is the construction time-consuming, but also the cost reduction is difficult.

Therefore, the present invention makes it possible to improve the utilization efficiency of the site area, reduce the temperature difference between the upper part and the lower part of the room, and maintain an environment suitable for mushroom cultivation. It is an object of the present invention to provide a method for cultivating a mushroom which can accelerate the release of carbon dioxide gas in the medium and the supply of fresh air.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to achieve the above-mentioned object. According to a first aspect of the present invention, columns are erected and a girder is erected between the columns. A heat insulating panel between the pillars to form a side wall, and a heat insulating panel on the ceiling. A heat insulating room surrounded by the heat insulating panel on the ceiling and the heat insulating panel on the side wall is formed, and an air conditioner is installed above the heat insulating room. While arranging a plurality of air blowing parts of the device, the air blowing direction of the air blowing parts is directed to the direction in which the air blowing from the adjacent air blowing parts collides,
A mushroom cultivating house is characterized in that an outlet of an outside air introducing device for introducing outdoor air into an insulating chamber is opened at an upper part of the insulating chamber, and an exhaust device having an intake port is provided at a lower part of the insulating chamber.

According to a second aspect of the present invention, in addition to the structure of the first aspect, the heat insulating panel attached to the side wall is subjected to a waterproof treatment on the outdoor side surface.

According to a third aspect of the present invention, there is provided a mushroom cultivating house characterized in that, in addition to the structure of the first or second aspect, the intake port of the exhaust device is arranged at a corner portion of the heat insulation chamber. .

According to a fourth aspect, there is provided the first to third aspects.
In addition to the configuration described in any one of 1. above, the mushroom culture house is characterized in that the total introduction capacity of the outside air introduction device is set to be larger than the total exhaust capacity of the exhaust device.

According to a fifth aspect, the first to fourth aspects are provided.
In addition to the configuration described in any one of 1. above, a mushroom cultivating house is provided with a control device that repeatedly performs an operation of operating the outside air introduction device after operating the exhaust device.

According to a sixth aspect of the present invention, in a mushroom cultivating house having an outside air introduction device and an exhaust device in the heat insulation chamber, a combination of exhaust by the operation of the exhaust device and intake by the operation of the outside air introduction device is used. The method for cultivating mushrooms is characterized by forcibly moving gas in and out of a culture medium such as a cultivation bottle or a fungal bed block by moving the atmospheric pressure up and down.

According to a seventh aspect of the present invention, the atmospheric pressure in the heat insulating chamber is once lowered to below normal pressure by operating the outside air introducing device after operating the exhaust device, and then raised to above normal pressure. This is a mushroom culturing method characterized in that the gas in a culture medium such as a cultivation bottle or a fungal bed block is forced to flow in and out by repeating the operation to raise and lower the atmospheric pressure in the heat insulating chamber.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the mushroom cultivating house 1 has steel columns 2 standing upright at predetermined intervals.
The girder 3 and the beam are erected so as to connect the upper ends of the bridges, and the frame 5 is formed by connecting the gassho (roof beam) 4.
And the heat insulation panel 6a is pasted between the pillars 2 to form an inner wall,
Further, the roof is roofed, the heat insulating panel 6b is attached to the ceiling 7, and the heat insulating chamber 8 surrounded by the heat insulating panel 6b of the ceiling 7 and the heat insulating panel 6a of the inner wall is formed. In addition, a beam member for fixing the heat insulating panels 6a and 6b is provided at a portion between the pillars 2 or the ceiling portion where the heat insulating panels 6a and 6b are attached, and in order to give the frame 5 a necessary strength. Providing braces and the like is similar to the conventional frame.

The heat insulating panel 6a used as the inner wall is preferably a panel having at least the outdoor side surface subjected to a water resistant treatment. For example, the heat insulation panel 6a shown in FIG. 2 and FIG. 3 uses metal plates 10a and 10b on the inner and outer surfaces to have water resistance, and is hard as a heat insulating material between both metal plates 10a and 10b. Urethane foam 11 is injected and foamed, and a frame 12 constituting an end face is provided with concavities and convexities for connection. Therefore, when the heat insulating panel 6a is sequentially attached to the top, bottom, left and right, an inner wall having water resistance that can withstand wind and rain can be formed. In addition, it is desirable that the joint portion of the heat insulating panel 6a is filled with a caulking material 13 to surely prevent intrusion of rainwater. Also, the heat insulation panels 6a, 6
By filling the joint portion of b with caulking material, not only the heat insulating property of the heat insulating chamber 8 can be improved but also the airtightness can be increased, and carbon dioxide gas inside the fungal bed block and the cultivation bottle described later is released. Ventilation efficiency when supplying fresh air can be improved.

On the other hand, the heat insulating panel 6b attached to the ceiling 7 may be the same as the above-mentioned heat insulating panel 6a for the inner wall, but since it is not required to have water resistance, it may be a simple hard urethane foam plate. The heat insulating panels 6a and 6b may have any structure as long as they have heat insulating properties, and the heat insulating material is not limited to the hard urethane foam 11 and may be a fiber such as glass wool.

In the heat-insulating chamber 8 surrounded by the heat-insulating panels 6a and 6b, a blower of an air conditioner is installed near the ceiling 7, and an exhaust device and an outside air introducing device are installed near the wall.

The air conditioner adjusts the temperature in the heat insulation chamber 8 to a temperature suitable for mushroom cultivation (for example, 20 ° C. in the case of shiitake mushrooms). In the present embodiment, it is for cooling, and therefore a compressor and a condenser are used. The outdoor unit 15 such as the above is installed outdoors, and the indoor unit 17 in which the heat exchanger and the blower (as the blower unit) 16 are unitized is installed in the heat insulation chamber 8 immediately below the ceiling 7. The units 17 are connected by pipes (not shown). The installation direction of the blower 16 of the indoor unit 17 is set such that the cool air to be blown is oriented in the lateral direction, and the blower ports are opposed to each other so that the cool air blown from the adjacent indoor unit 17 collides. Install in.

Further, a temperature sensor (not shown) is installed in the heat insulation chamber 8.
A signal from this temperature sensor is sent to the control device, the temperature set by the temperature setter and the actual room temperature are compared by the control device, and the operation of the air conditioner is controlled by this control device. It is desirable to install the temperature sensor at a position where the cold air from the indoor unit 17 does not directly contact. In the present embodiment, since the cool air is blown from the indoor unit 17 in opposite directions, the temperature sensor is approximately 90 degrees from the blowing direction. Install at the position where the phase is changed.

Therefore, the room temperature detected by the temperature sensor is set to a set temperature, for example, 20 ° C. tolerable temperature range + 1 ° C.
(When the temperature sensor detects 21 ° C.), the control device activates the air conditioner, and the indoor unit 17 operates as shown in FIG.
As shown in, the air sucked from below is cooled about 4 to 5 degrees, and then cold air is blown out in the lateral direction. Indoor unit 17
When the cool air is blown laterally from the cold air, the cold air collides with the cool air from the adjacent indoor unit 17, and the collision of the cold air not only mixes both the cool air but also the warm air around it with stirring to mix with the cool air. By stirring and mixing, the range of air whose temperature has dropped is expanded, and the temperature of most of the upper part of the heat insulation chamber drops.
In this way, when the temperature of the upper part of the heat insulating chamber 8 drops over a wide range, the low-temperature air has a specific gravity larger than that of the high-temperature air, so that the low-temperature air naturally descends without using mechanical downward blowing means.

On the other hand, the air warmed by the heat generated by the growth of the mushroom rises naturally, collides with the low temperature air in the middle of the rise, and is agitated and mixed. Since the cooling capacity of the air conditioner is larger than the heating value of the mushroom, the collision position between the descending low temperature air and the rising warm air gradually decreases.

When the temperature sensor detects the ambient room temperature and the detected temperature detects the set temperature for stop (19 ° C.), the controller stops the operation of the air conditioner. In addition,
By the time the temperature reaches this detection temperature, the room temperature in the heat insulation chamber 8 is adjusted to the proper cultivation temperature (set temperature) even in the lower part.

The number of air conditioners installed and the number of indoor units 17 installed are appropriately set according to the size and height of the heat insulating chamber 8. However, at least the cool air sent from the adjacent indoor units 17 is Set the intervals so that they can collide and stir and mix. In this embodiment, as shown in FIG. 1, three locations are provided in the horizontal direction, and a plurality of locations are also provided in the vertical direction (ridge direction). A plurality of temperature sensors are provided so that each indoor unit 17 can operate independently. Therefore, when a part of the heat insulation room 8 reaches a predetermined temperature or higher, the indoor unit 1 in charge of that part
Only 7 can be activated.

The exhaust device 20 provided near the wall is provided with a blower unit 21 such as an electric fan facing the outdoor side at the upper part, and an intake pipe 22 is extended downward from the intake side of the blower unit 21. The lower end intake port 23 is opened in the lower part of the heat insulating chamber 8 (preferably in the vicinity of the floor surface of the heat insulating chamber 8). Then, the exhaust device 20 is installed at a plurality of places in order to make the environment inside the heat insulating chamber 8 uniform, and is arranged at a corner portion (corner portion) of the heat insulating chamber 8 where air is particularly likely to stay. Since the exhaust side of the blower unit 21 is open to the outside of the room, as shown in FIG. 1, the outlet of the outside is opened downwards, or a hood (not shown) is provided to prevent rainwater and the like from entering the inside of the room. It is desirable to prevent entry into the. Also,
It is desirable to install a net to prevent the invasion of harmful insects.

When the exhaust device 20 having the above-described structure is operated, the intake port 23 opens to the lower part in the heat insulating chamber 8 near the floor surface, so that the air near the floor surface is preferentially sucked and exhausted to the outside. can do. Since carbon dioxide gas generated when mushrooms in the fungal bed block grow has a larger specific gravity than air, it has the property of gradually descending and collecting near the floor surface. Particularly, in the corner portion of the heat insulating chamber 8, since the air in the room is likely to stay even if it is circulated, carbon dioxide gas is likely to stay in the corner portion. Therefore, when the exhaust device 20 is operated and exhausted, air having a high carbon dioxide gas concentration can be exhausted, and the carbon dioxide gas concentration in the heat insulating chamber 8 can be adjusted to a predetermined value (2000 ppm) or less. It should be noted that carbon dioxide gas concentration detectors are provided at a plurality of locations, the carbon dioxide gas concentration is monitored by the control device based on the signal from each detector, and the preset concentration (for example, 2000 p
pm), the control device may be configured to operate only the exhaust device 20 in charge of the part.
Particularly, it is effective in the exhaust device 20 arranged in the corner portion of the heat insulating chamber 8.

On the other hand, contrary to the exhaust device 20, the outside air introducing device 25 for introducing outside air into the heat insulating chamber 8 is provided with an air blowing unit 26 such as an electric fan at the upper part with the air blowing direction facing the inside. The intake port of the intake pipe 27 of the blower unit 26 is opened to the outside of the room, and the blowout port 28 is opened to the upper part of the heat insulating chamber 8. In addition, in this embodiment, the outlet 28 is opened toward the ceiling 7. The outside air introducing device 25 is installed at a plurality of places in order to make the environment inside the heat insulation chamber 8 uniform, and the outlet 28 is provided in the indoor unit 1.
It is arranged in the range where the air sent from 7 flows. Since the intake pipe 27 of the blower unit 26 is open to the outside of the room, as shown in FIG. 1, the intake port may be opened downward, or a hood (not shown) may be provided to prevent rainwater or the like from entering the indoor side. It is desirable to prevent entry into the. Further, it is desirable to provide a filter or the like for preventing the intrusion of dust and harmful insects.

When the outside air introducing device 25 having the above-mentioned structure is operated, the blow-out port 28 opens toward the ceiling 7, so that the introduced fresh outside air is once blown toward the ceiling 7 and diffused in a wide range. You can Then, the outside air blown from the outlet 28 is the indoor unit 1
The cold air from 7 is mixed with stirring to adjust the temperature appropriately. Therefore, it is possible to adjust to an appropriate temperature even in the summer when the outside air temperature is higher than the cultivation appropriate temperature.

The control device of the outside air introducing device 25 is connected to the control device of the exhaust device 20, and when the carbon dioxide gas concentration detector detects the concentration exceeding a preset concentration (for example, 2000 ppm), the exhaust device 20 The control device operates the exhaust device 20 for a predetermined time, and when the predetermined time has elapsed, the control device for the outside air introduction device 25 operates the outside air introduction device 25 for a predetermined time while keeping the operation of the exhaust device 20 unchanged. After a lapse of time, both devices may be stopped at the same time, and such an operation may be repeated. in this case,
The total introduction capacity of the outside air introduction apparatus is set to be large up to about twice the total exhaust capacity (the amount of air blown per unit time) of the exhaust apparatus 20 provided in the heat insulation chamber 8. If it exceeds 2 times, the evaporation of water in the medium becomes excessive, which rather deteriorates the growth.

As described above, when the air pressure in the heat insulating chamber 8 is repeatedly moved up and down by the combination of the exhaust air by the operation of the exhaust device 20 and the intake air by the operation of the outside air introduction device 25, the fungus bed block in the cultivation bag and the Since carbon dioxide gas accumulated in the culture medium inoculated with a cultivation bottle or the like can be exhausted to the outside, the release of carbon dioxide gas to the outside can be promoted.

That is, assuming that the normal atmospheric pressure (normal pressure) inside and outside the heat insulating chamber 8 is, for example, 1.0 atmospheric pressure, the exhaust device 2
When 0 is activated, the air pressure in the heat insulation chamber 8 is reduced to about 0.7 atm, so that the inside of the fungus bed block and the like is decompressed with a slight delay, and then the exhaust device 20 is kept operating to deliver the total air. When the outside air introduction device 25 having a large capacity is operated, the heat insulation chamber 8
Since the internal pressure rises to about 1.2 atmospheric pressure, the pressure inside the bacterial bed block is also slightly delayed. Then, if the boosting state continues for a predetermined time, the operation of both devices 20, 25 is stopped at the same time, and the above operation is repeated after the interval of the predetermined time.

In this manner, when the air pressure in the heat insulating chamber 8 is moved up and down by the exhaust device 20 and the outside air introducing device 25, the inoculation is carried out on the same principle that the air in the lungs moves in and out by lung respiration. Compared with the case where a constant pressure is maintained, the fact that the medium inside the bacterial bed block or cultivation bottle respires, the carbon dioxide gas accumulated inside is released to the outside, and that fresh outside air penetrates into the medium And be promoted together. Therefore, the growth of mushrooms is promoted. Further, when the air pressure inside the heat insulating chamber 8 is made higher than the air pressure outside, when the air exits the room through the gap or the like, molds, germs or harmful insects existing in the gap or the like can be discharged to the outside. It is preferable that the heat insulating chamber 8 has high airtightness in order to efficiently breathe the medium. Further, if the atmospheric pressure in the heat insulating chamber 8 can be moved up and down, the respiration (ventilation) of the medium can be forcibly performed. Therefore, the combination of the exhaust by the operation of the exhaust device and the intake by the operation of the outside air introduction device is not possible. However, the present invention is not limited to the above, and any combination may be used. For example, exhaust and intake may be alternately performed.

Since the height from the floor surface to the ceiling 7 of the heat insulating room 8 equipped with the above-mentioned devices is higher than that of the room of the conventional mushroom cultivation house, the height of the shelf for placing cultivation bottles and fungal bed blocks is high. It is possible to increase the amount of cultivated rice, and thus the amount of cultivation per unit area can be increased more than before.

In the embodiment shown in the drawings, the cultivation shelves 31 are set to six.
The pallets 32 having a height of 1.6 meters and arranged in two steps are stacked so that they can be cultivated. Therefore, the amount of cultivation per unit area can be increased to about double that of the conventional method, and the cultivation efficiency is significantly improved.

Further, the pallet 32 shown in this embodiment is
It can be carried using a mechanical carrying means such as a forklift 33. Therefore, the fungal bed block is placed on each cultivation shelf 31 of the pallet 32 by an automatic shelving machine,
This pallet 32 is attached to the heat insulation chamber 8 by a forklift 33.
It is possible to convey the bacterial bed blocks to a predetermined position inside and to culture the bacterial bed blocks in a state of being stacked in two stages.

When mushrooms are cultivated in the heat-insulating chamber 8 in this way, as described above, heat and carbon dioxide gas are generated during growth, warm air rises, and carbon dioxide gas falls.

When the room temperature exceeds the set temperature, the blower 16 of the indoor unit 17 operates to start sending cold air, and the cold air is agitated and mixed with the surrounding air to descend.
Further, since the blow-out port 28 of the outside air introduction device 25 is opened toward the ceiling 7, fresh outside air once hits the ceiling 7 and diffuses, and is further stirred and mixed with the cold air to descend. Therefore, even if the height of the heat insulating chamber 8 increases, the difference in the temperature inside the chamber between the upper portion and the lower portion decreases, and a substantially uniform temperature distribution can be obtained.

Further, since carbon dioxide gas is heavier than air, it descends, and when the exhaust device 20 is operated, ambient air is sucked from the intake port 23 opening near the floor surface and discharged to the outside of the room. As described above, the air near the floor surface contains a large amount of descending carbon dioxide gas. Therefore, when the exhaust device 20 is operated, the air having a high carbon dioxide gas concentration can be efficiently exhausted. In particular, even if the air in the upper part is made to flow by the operation of the blower 16 of the indoor unit 17, the air tends to stay in the corner portion of the heat insulating chamber 8, so that carbon dioxide gas tends to stay. Therefore, when the exhaust device 20 provided in this corner portion is operated, the air having a high carbon dioxide gas concentration that has accumulated in the corner portion can be forcibly discharged. Therefore, it is possible to prevent the bacterial bed block placed in the corner of the heat insulating chamber 8 from becoming oxygen-deficient.

In this embodiment, the outside air introducing device 25 is also used.
Since the total introduction capacity of the exhaust gas is larger than the total exhaust capacity of the exhaust device 20, the amount of air descending from the upper portion of the heat insulating chamber 8 exceeds the amount of rising air, and the air with a high carbon dioxide gas concentration rises, The high-concentration carbon dioxide gas-containing air, which is suppressed from being diffused into the chamber and whose increase is suppressed, is discharged from the intake port 23 to the outside of the room. Therefore, the carbon dioxide gas concentration in the heat insulating chamber 8 is maintained below a predetermined concentration.

Further, since the total introduction capacity of the outside air introducing device 25 is larger than the total exhausting capacity of the exhaust device 20, the internal pressure of the cultivation bottle or the like can be increased, thereby improving the ventilation efficiency of the culture medium.

As described above, the air in the heat insulating chamber 8 can maintain an appropriate temperature suitable for cultivation and an appropriate carbon dioxide gas concentration regardless of the vertical position. Therefore, there is no difference in the speed of growth between the mushrooms (bacterial bed block) cultivated on the lower cultivation shelf 31 and the (bacterial bed block) cultivated on the upper cultivation shelf 31. Also in 31), it can be cultivated under the optimum environment.

It should be noted that the mushroom cultivation environment requires a predetermined humidity, and as shown in FIG. 1, the ultrasonic humidifier 3 is used.
5 is provided in the vicinity of the indoor unit 17, and the moisture generated from the humidifier 35 is placed on the air flow sent out from the indoor unit 17 and supplied over a wide range, whereby the humidity of the entire heat insulation chamber 8 is set to a predetermined humidity. You may comprise so that it may raise. In addition, since the outside air temperature is low in winter and the like, the room temperature may be lower than the optimum temperature even if heat generated by growth is released, so a heater (not shown) may be provided. In this case, the control device controls the operation of the heater based on the temperature detection signal from the temperature sensor, as in the case of the cooling air conditioner.

[0042]

As described above, according to the present invention, even if the height of the heat insulating chamber of the mushroom cultivating house is set to be large, the air blower of the air conditioner is provided above the heat insulating chamber so that the air blows against each other. Since the air outlet of the outside air introduction device is opened at the upper portion of the heat insulating chamber while being arranged, fresh outside air can be once dispersed in the upper portion of the heat insulating chamber. Then, the air introduced by the outside air introducing device is dispersed in the upper part of the heat insulating chamber and is stirred and mixed with the air sent from the air blower of the air conditioner arranged in the upper part of the heat insulating chamber to spread over a wide range. Since the temperature drops after the temperature is adjusted, it is possible to prevent cold air that is not suitable for the cultivation temperature or outside air whose temperature is unadjusted from directly reaching the fungal bed block or the cultivation bottle. Therefore, even if the outside air whose temperature changes depending on the season or the weather is introduced, it is possible to reliably maintain the temperature environment suitable for growing mushrooms. Moreover, since the intake port of the exhaust device was opened in the lower part of the heat insulation chamber, not only the fresh and appropriately adjusted air in the upper part of the heat insulation chamber is simply lowered, but the concentration of carbon dioxide gas from the intake port opening in the lower part High air is exhausted from the intake port in the lower part of the insulation chamber, and fresh air is supplied while mixing with fresh air in the upper part where the concentration of carbon dioxide gas is relatively low, so the introduced air can be used effectively. it can. Also, if the air cooled to an appropriate temperature while stirring and mixing in the upper part of the adiabatic chamber is allowed to descend, even if the height to the ceiling increases, there will be a difference in temperature between the upper and lower sides compared to when air is simply circulated. The temperature can be adjusted in a wide range while suppressing.
Further, the space between the cultivation shelves and the space between the cultivation bottles, which are required as the forced circulation flow path of air, can be made narrower than before. Therefore, the amount of cultivation per unit area can be reasonably increased.

As described above, while evacuating the air having a high carbon dioxide gas concentration, it is possible to prevent a difference in room temperature between the upper part and the lower part of the heat insulating chamber and to make the growth environment uniform. The difference in growth between mushrooms on the cultivation shelves located in the above becomes difficult to occur,
The progress of growth can be made uniform. Then, if the growth progress can be made uniform, it will be possible to batch-assemble each cultivation shelf group (pallet) without confirming the growth condition of each fungal bed block etc. when transporting or shipping to the next process. Therefore, the work efficiency can be improved.

As described above, if the height of the heat insulating room can be made higher than before while achieving a uniform growth environment, the amount of cultivation per unit area of the site can be increased. In that case, the production can be increased more than ever, and the production efficiency can be increased. Also, if the height of the heat insulation chamber can be increased without affecting the growth environment, cultivation shelves such as pallets can be freely transported by mechanical means such as a forklift, and pallets can be stacked. It can be cultivated in a standing state. Therefore, mechanization of movement of the fungus bed block and the like becomes easy.

According to the second aspect of the present invention, when constructing the heat insulation chamber, there is no need to attach an exterior material, and in combination with the increase in the cultivation amount per unit area, the construction of the culture house with respect to the production amount is improved. You can save money.

According to the third aspect of the present invention, since the intake port of the exhaust device is arranged at the corner portion of the heat insulating chamber, the air in the corner portion is apt to settle and accumulate, and the carbon dioxide gas concentration is likely to increase. Can be actively exhausted. Therefore, it is possible to prevent oxygen insufficiency in the fungal bed block placed in the corner of the heat insulating chamber, and to more reliably achieve uniform growth environment in the heat insulating chamber.

According to the fourth aspect of the invention, since the total introduction capacity of the outside air introduction device is larger than the total exhaust capacity of the exhaust device, the amount of air descending from the upper part of the heat insulation chamber exceeds the amount of air rising. Therefore, it is possible to prevent the air having a high carbon dioxide gas concentration from rising and diffusing into the room, and the high-concentration carbon dioxide gas-containing air in which the increase is suppressed can be discharged from the intake port to the outside of the room. Therefore, the concentration of carbon dioxide gas in the heat insulating chamber can be maintained below a predetermined concentration even if convection occurs in the heat insulating chamber due to the descending air flow, and the growth environment can be made more uniform. it can.

According to the sixth aspect of the present invention, the air pressure in the medium is moved up and down by the combination of the exhaust by the operation of the exhaust device and the inhalation by the operation of the outside air introducing device. Gas is forced in and out. Therefore, the release of carbon dioxide gas in the medium can be promoted and the supply of fresh air can be promoted. Therefore, the growth of mushrooms can be promoted.

In the invention according to claim 5, the control device activates the outside air introduction device after activating the exhaust device, so that the atmospheric pressure in the medium is once reduced to a negative pressure and then pressurized. The gas can be more efficiently ventilated, and the growth can be further promoted.

The invention described in claim 7 is also the same as that of claim 5.
The same effect as described above can be obtained.

[Brief description of drawings]

FIG. 1 is a front view showing the inside of a mushroom culture house.

FIG. 2 is a cross-sectional view showing a state in which a heat insulating panel used for an inner wall is connected.

FIG. 3 is a perspective view of the heat insulation panel shown in FIG.

[Explanation of symbols]

 1 Mushroom Culture Building 2 Pillars 3 Digits 4 Gasshoes 5 Frames 6 Insulation Panels 7 Ceilings 8 Insulation Rooms That Become Cultivation Rooms 10 Metal Plates 11 Hard Urethane Foams as Insulation Materials 12 Frames 13 Caulking Materials 15 Outdoor Units of Air Conditioners 16 Blowers 17 Indoors Unit 20 Exhaust device 21 Blower unit 22 Intake pipe 23 Intake port of intake pipe 25 Outside air introduction device 26 Blower unit 27 Intake pipe 28 Outlet port 31 Cultivation shelf 32 Pallet 35 Humidifier

Claims (7)

[Claims] 1. A pillar is erected and a girder is installed between the pillars to construct a skeleton, a heat insulating panel is stuck between the pillars to form a side wall, and a heat insulating panel is stuck to the ceiling. Forming a heat-insulating chamber surrounded by the heat-insulating panel, and arranging a plurality of air-conditioning unit blowers in the upper part of the heat-insulating chamber,
Direct the air blow direction of the air blower to the direction in which it hits the air blown from the adjacent air blower, open the outlet of the outside air introduction device that introduces the outdoor air into the heat insulation room to the upper part of the heat insulation room, and the intake port at the bottom of the heat insulation room. Mushroom culture house, which is equipped with an exhaust system that opens. 2. The mushroom cultivating house according to claim 1, wherein the heat insulating panel attached to the side wall has a water resistant treatment applied to the surface on the outdoor side. 3. The mushroom cultivating house according to claim 1 or 2, wherein an intake port of the exhaust device is arranged at a corner portion of the heat insulating chamber. 4. The mushroom cultivating house according to claim 1, wherein the total introduction capacity of the outside air introduction device is set to be larger than that of the exhaust device. 5. The mushroom cultivating house according to claim 1, further comprising a control device for repeatedly operating the outside air introducing device after activating the exhaust device. 6. In a mushroom cultivating house having an outside air introduction device and an exhaust device in the heat insulation chamber, the atmospheric pressure in the heat insulation chamber is moved up and down by a combination of the exhaust air by the operation of the exhaust device and the intake air by the operation of the outside air introduction device. A method for cultivating mushrooms, characterized in that the gas in the culture medium such as cultivation bottles and fungal bed blocks is forced to flow in and out. 7. The air pressure inside the heat insulation chamber is once lowered to below normal pressure by operating the outside air introduction device after operating the exhaust device, and is then raised above normal pressure, and this operation is repeated to repeat this operation. A method for cultivating mushrooms, which comprises forcibly moving gas in and out of a culture medium such as a cultivating bottle or a fungal bed block by moving the atmospheric pressure up and down.