阅读说明：本技术 一种菌房环境整体机 (Integrated machine for fungus house environment ) 是由 金阿龙 向延勇 袁杰 邱辉 戴陈渲 陈建汶 谢毓豪 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种菌房环境整体机,包括食用菌菌房、机架、送风机、控制柜、CO2浓度控制装置和温度控制装置,CO2浓度控制装置包括一切换装置和翅片式蒸发器,机架内还设有一中间隔板,中间隔板和翅片式蒸发器平行分布,并将机架内部依次分成第一室、第二室和第三室,第一室上设有至少一个新风入口,第二室上设有至少两个回风入口,中间隔板上设有一通风口；切换装置用于开启通风口并同时关闭一个回风入口,或者用于开启一个回风入口并同时关闭通风口；通过本技术方案能实现实时温度控制和二氧化碳浓度控制,并配合均匀的空气交换,有利于食用菌批量化、规模化均衡生长的菇房环境整体机,满足市场需求。(The invention discloses a fungus room environment integral machine, which comprises an edible fungus room, a frame, a blower, a control cabinet, a CO2 concentration control device and a temperature control device, wherein the CO2 concentration control device comprises a switching device and a finned evaporator, a middle partition plate is also arranged in the frame, the middle partition plate and the finned evaporator are distributed in parallel, the interior of the frame is sequentially divided into a first chamber, a second chamber and a third chamber, the first chamber is provided with at least one fresh air inlet, the second chamber is provided with at least two return air inlets, and the middle partition plate is provided with a vent; the switching device is used for opening the vent and closing one return air inlet at the same time, or is used for opening one return air inlet and closing the vent at the same time; by adopting the technical scheme, real-time temperature control and carbon dioxide concentration control can be realized, and uniform air exchange is matched, so that the mushroom house environment integrated machine for mass and large-scale balanced growth of edible mushrooms is facilitated, and the market demand is met.)

1. A fungus room environment integrated machine comprises an edible fungus room, a frame (1), a blower (20) and a control cabinet (21), wherein the control cabinet (21) and the blower (20) are arranged on the frame (1) and are respectively positioned at two opposite sides of the frame (1), the edible fungus room is also internally provided with a blast pipe, a return air pipe and a fresh air pipe which are connected with the frame (1), and the fungus room environment integrated machine is characterized in that,

at least one temperature sensor and at least one CO2 concentration sensor are also arranged in the edible fungus room; the frame (1) is provided with a temperature control device and a CO2 concentration control device, a temperature control unit and a CO2 concentration control unit are arranged in the control cabinet (21), the temperature control unit controls the temperature in the edible fungus room through the temperature control device and a temperature sensor, and the CO2 concentration control unit controls the concentration of CO2 in the edible fungus room through the CO2 concentration control device and a CO2 concentration sensor;

the CO2 concentration control device comprises a switching device and a finned evaporator (22), a middle clapboard (10) is arranged in the frame (1), the middle clapboard (10) and the finned evaporator (22) are distributed in parallel, and divides the interior of the frame (1) into a first chamber (11), a second chamber (12) and a third chamber (13) in turn, the first chamber (11) and the second chamber (12) are respectively positioned at two sides of the middle partition plate (10), the second chamber (12) and the third chamber (13) are respectively positioned at two sides of the finned evaporator (22), the control cabinet (21) is positioned in the first chamber (11), the blower (20) is positioned outside the third chamber (13) and is connected with the blast pipe, the first chamber (11) is provided with at least one fresh air inlet (14), the second chamber (12) is provided with at least two return air inlets, and the middle partition plate (10) is provided with a vent (30); the switching device is used for opening the vent (30) and closing one return air inlet at the same time, or is used for opening one return air inlet and closing the vent (30) at the same time.

2. A whole machine for a fungus house environment according to claim 1, wherein the second room (12) is provided with a first return air inlet (15) and a second return air inlet (16), wherein the first return air inlet (15) is located at the bottom or the top of the second room (12), the second return air inlet (16) is located at the side wall of the second room (12), and the switching device is used for opening the ventilation opening (30) and simultaneously closing the first return air inlet (15) or opening the first return air inlet (15) and simultaneously closing the ventilation opening (30).

3. A bacteriroom environment all-in-one machine as claimed in claim 1, wherein said switching means includes a sealing plate (17), an air valve actuator (23) and a connecting means, said sealing plate (17) being rotatably mounted on the intermediate deck (10) or the frame (1), said air valve actuator (23) providing the sealing plate (17) with a first rest position and a second rest position by means of the connecting means, said sealing plate (17) sealing the first return air inlet (15) when the sealing plate (17) is in the first rest position, and said sealing plate (17) sealing the vent (30) when the sealing plate (17) is in the second rest position.

4. A fungus house environment all-in-one machine according to claim 3, wherein the connecting device comprises a first connecting shaft (18) and a second connecting shaft (19), one end of the first connecting shaft (18) is fixedly connected with the air valve actuator (23) and the other end is hinged with one end of the second connecting shaft (19), and the other end of the second connecting shaft (19) is rotatably mounted on the sealing plate (17).

5. A fungus house environment all-in-one machine according to claim 1, wherein the temperature control device comprises a compressor (24), a condenser (25), a dry filter (26) and an expansion valve (27), the compressor (24), the condenser (25), the dry filter (26), the expansion valve (27), the finned evaporator (22) and the blower (20) are circularly connected through a refrigerant pipeline, wherein the compressor (24) and the condenser (25) are positioned in the first chamber (11), and the dry filter (26) and the expansion valve (27) are positioned in the second chamber (12).

6. The machine as claimed in claim 5, wherein the refrigerant conduit comprises a suction pipe, a discharge pipe, a high pressure liquid pipe and a low pressure liquid pipe, and the compressor (24) is connected with the condenser (25) through the discharge pipe; the shell-and-tube condenser (25), the dry filter (26) and the expansion valve (27) are connected through a high-pressure liquid pipe; the expansion valve (27) is connected with the finned evaporator (22) through a low-pressure liquid pipe; the finned evaporator (22) is connected with the compressor (24) through a suction pipe.

7. The machine as claimed in claim 1, wherein the CO2 concentration control device further comprises at least one fresh air panel, and the fresh air panel is provided with a plurality of holes distributed in a staggered manner to form a fresh air inlet (14).

8. A fungus house environment all-in-one machine as claimed in claim 7, wherein said fresh air panel has two pieces, located on two side walls of the first chamber (11).

9. A bacteriroom environment all-in-one machine as claimed in claim 1, wherein said CO2 concentration control means further comprises at least one air filter located in the first compartment (11) and at the fresh air inlet (14).

10. A fungus room environment all-in-one machine according to claim 1, characterized in that the frame (1) is installed on top of the edible fungus room.

Technical Field

The invention relates to an edible fungus cultivation device, in particular to an environment integrated machine for a fungus room.

Background

The edible fungus contains various nutrient components required by human body, such as amino acid, protein, saccharide, lipid, vitamin and mineral substance, and has good effects of inhibiting tumor, regulating immunity and reducing cholesterol. With the gradual improvement of the living standard of people in China, the domestic consumption of edible fungi is increasing day by day, and most urban residents become main consumers of the edible fungi. The consumption of 100g of edible fungi in each of 300 ten thousand cities every day is calculated, 30 ten thousand kilograms of edible fungi can be consumed in one city every day, the annual consumption can reach 110 ten thousand tons, more than 50 cities with over 300 ten thousand people in China exist, the consumption of the cities is over five times of the current edible fungi yield, the edible fungi consumption in China can be rapidly increased in the next 20 years, and the edible fungi market development prospect is very wide. Therefore, the mushroom house environment machine special for cultivating edible mushrooms needs to be provided, and the market demand can be met by matching with large-scale and industrial planting.

The intensification and the industrialization of the edible fungi are a relatively complex integral system, and can not detect and control a certain parameter singly, but needs to control the whole production environment of the edible fungi comprehensively, simultaneously and consistently. Through a series of practical projects, the factors which have the greatest influence on the growth speed, the quality and the yield of the edible fungi comprise four aspects: temperature, humidity, CO2 concentration, and illumination intensity. The requirements for the four elements are changed according to the different types of the edible fungi and the different growth stages of the edible fungi, so that a technology capable of performing overall control according to the specific types and the specific growth stages of the edible fungi is extremely important.

Therefore, chinese patent publication No. CN107622361B discloses a mathematical modeling and control method for edible fungus greenhouse environment, which includes setting a data acquisition mechanism, a data processing mechanism and an action executing mechanism, establishing an objective function model and a real-time function model based on four factors of temperature, humidity, carbon dioxide concentration and illuminance in the data processing mechanism, and starting a corresponding control mode of the action executing mechanism according to a deviation factor and a deviation degree of the objective function model and the real-time function model to complete real-time regulation and control of the edible fungus greenhouse environment. Through the historical domestic fungus room production environment data of collection, the contrast research temperature, humidity, CO2 concentration and the influence of illumination intensity to domestic fungus output and quality, creat out a control model, to the temperature, humidity, CO2 and the illumination in fungus room, carry out central overall control adjustment for domestic fungus is in the best growing environment always, and can carry out the control of model and control correction along with actual demand. Provides multi-directional orientation for the environmental regulation and control of the edible fungus greenhouse.

In the using process, the technical personnel in the field find that the control method (taking the four factors of temperature, humidity, CO2 concentration and illumination intensity into consideration) is applied to actual production, and although the yield and the quality of edible fungi can be higher, the manufacturing cost is high, equipment is huge, namely the occupied area is large, and the edible fungi cannot achieve high cost performance in the production process.

Chinese patent publication No. CN102726212B discloses a mushroom house environment machine, which senses real-time temperature, humidity and carbon dioxide concentration in a mushroom house through a temperature sensor, a humidity sensor, a carbon dioxide concentration sensor and the like arranged in the mushroom house, analyzes and processes the real-time temperature, humidity and carbon dioxide concentration in the mushroom house through a programmable controller, and automatically controls a compressor, a centrifugal fan, an electric heating pipe set, a humidifier, an electric fresh air device, a ventilation fan and the like, so as to realize automatic regulation and control of the temperature, humidity and carbon dioxide concentration in the mushroom house, ensure constant temperature and humidity of the mushroom house, automatically turn on the electric fresh air device and the ventilation fan when the carbon dioxide concentration in the mushroom house rises, control the carbon dioxide concentration in a proper range, and enable the mushroom house to have a good mushroom growing environment; the method only considers the influence factors of the temperature, the humidity and the CO2 concentration, properly reduces the cost and the equipment floor area, improves the cost performance of edible fungus production, has simple and convenient operation and good control effect, is beneficial to large-scale and industrial planting and production of the edible fungi, and is worthy of popularization and application.

But still suffer from the following disadvantages:

1) the temperature and the CO2 concentration have the greatest influence on the yield and the quality of the edible fungi among the four factors of temperature, humidity, the CO2 concentration and the illumination intensity, so the cost performance of the mushroom house environment machine can be further improved;

2) the existing mushroom house environment machine is still large in overall volume and large in occupied area, and the cultivation area of edible mushrooms is influenced;

3) when the concentration of indoor CO2 is too high, the concentration of indoor CO2 is difficult to be effectively and rapidly reduced only by introducing outdoor fresh air.

Disclosure of Invention

In order to solve the problems, the invention aims to overcome the defects of the prior art, provide the mushroom house environment integrated machine which is convenient to install, can realize real-time temperature control and carbon dioxide concentration control, is matched with uniform air exchange, is beneficial to batch and large-scale balanced growth of edible fungi, and meets the market demand.

In order to achieve the purpose, the invention adopts the following technical scheme:

an integral machine for fungus room environment comprises an edible fungus room, a frame, a blower and a control cabinet, wherein the control cabinet and the blower are arranged on the frame and are respectively positioned at two opposite sides of the frame, an air supply pipe, a return air pipe and a fresh air pipe which are connected with the frame are also arranged in the edible fungus room, and the improvement is that,

at least one temperature sensor and at least one CO2 concentration sensor are also arranged in the edible fungus room; the frame is provided with a temperature control device and a CO2 concentration control device, a temperature control unit and a CO2 concentration control unit are arranged in the control cabinet, the temperature control unit controls the temperature in the edible fungus room through the temperature control device and a temperature sensor, and the CO2 concentration control unit controls the concentration of CO2 in the edible fungus room through a CO2 concentration control device and a CO2 concentration sensor;

the CO2 concentration control device comprises a switching device and a finned evaporator, a middle partition plate is further arranged in the rack, the middle partition plate and the finned evaporator are distributed in parallel, the interior of the rack is sequentially divided into a first chamber, a second chamber and a third chamber, the first chamber and the second chamber are respectively located on two sides of the middle partition plate, the second chamber and the third chamber are respectively located on two sides of the finned evaporator, the control cabinet is located in the first chamber, the air feeder is located on the outer side of the third chamber and connected with the air supply pipe, at least one fresh air inlet is formed in the first chamber, at least two return air inlets are formed in the second chamber, and a vent is formed in the middle partition plate; the switching device is used for opening the vent and closing one return air inlet at the same time, or is used for opening one return air inlet and closing the vent at the same time.

Preferably, the second chamber is provided with a first return air inlet and a second return air inlet, wherein the first return air inlet is located at the bottom or the top of the second chamber, the second return air inlet is located on the side wall of the second chamber, and the switching device is used for opening the vent and simultaneously closing the first return air inlet, or is used for opening the first return air inlet and simultaneously closing the vent.

Preferably, the switching device comprises a sealing plate, an air valve actuator and a connecting device, the sealing plate is rotatably mounted on the intermediate partition or the frame, the air valve actuator enables the sealing plate to have a first stop position and a second stop position through the connecting device, when the sealing plate is located at the first stop position, the sealing plate seals the first return air inlet, and when the sealing plate is located at the second stop position, the sealing plate seals the vent.

Preferably, the connecting device comprises a first connecting shaft and a second connecting shaft, one end of the first connecting shaft is fixedly connected with the air valve actuator, the other end of the first connecting shaft is hinged to one end of the second connecting shaft, and the other end of the second connecting shaft is rotatably mounted on the sealing plate.

Preferably, the temperature control device includes a compressor, a condenser, a dry filter, and an expansion valve, which are circularly connected through a refrigerant pipe, wherein the compressor and the condenser are located in the first chamber, and the dry filter and the expansion valve are located in the second chamber.

Preferably, the refrigerant pipeline comprises a gas suction pipe, a gas discharge pipe, a high-pressure liquid pipe and a low-pressure liquid pipe, and the compressor is connected with the condenser through the gas discharge pipe; the shell-and-tube condenser, the dry filter and the expansion valve are connected through a high-pressure liquid pipe; the expansion valve is connected with the finned evaporator through a low-pressure liquid pipe; the finned evaporator is connected with the compressor through an air suction pipe.

Preferably, the CO2 concentration control device further comprises at least one fresh air panel, and the fresh air panel is provided with a plurality of holes distributed in a staggered manner to form a fresh air inlet.

Preferably, the fresh air panels are two and are respectively positioned on the two side walls of the first chamber.

Preferably, the CO2 concentration control means further comprises at least one air filter located in the first chamber and located at the fresh air inlet.

Preferably, the rack is arranged on the top of the edible fungus room.

The invention has the beneficial effects that:

1) the real-time temperature and the carbon dioxide concentration in the edible fungus room are sensed by the temperature sensor, the carbon dioxide concentration sensor and the like arranged in the edible fungus room, then are analyzed and processed by the temperature control unit and the CO2 concentration control unit, and the compressor, the air feeder, the switching device and the like are automatically controlled, so that the temperature and the carbon dioxide concentration in the edible fungus room are automatically regulated and controlled, the constant temperature of the edible fungus room is ensured, the switching device is automatically opened when the carbon dioxide concentration in the edible fungus room is increased, the carbon dioxide concentration is controlled in a proper range, and the edible fungus room is provided with a good edible fungus growth environment. The invention has reasonable and compact structure, reasonable cost, simple and convenient operation and good control effect, is beneficial to large-scale and industrial planting and production of edible fungi, and is worthy of popularization and application.

2) The edible fungus cultivation device is simple and reasonable in arrangement, the occupied area of the rack is greatly reduced, and the edible fungus cultivation device can be even arranged at the top of a fungus room, so that the edible fungus cultivation device does not occupy the cultivation area.

3) When the concentration of CO2 in the fungus room is high, the first air return inlet can be closed and the vent can be opened through the switching device, so that the concentration of CO2 in the fungus room can be effectively and rapidly reduced.

Drawings

FIG. 1 is a first schematic view of an environment integrating machine according to the present invention;

FIG. 2 is a second schematic structural diagram of the environment integrating machine (the front part of the frame is omitted) according to the present invention;

FIG. 3 is a third schematic view of the construction of the environment integrating machine (the front, back, left and right parts and the top side part of the frame are omitted) of the invention;

FIG. 4 is a front view of FIG. 1 of the present invention;

fig. 5 is a bottom view of fig. 1 of the present invention.

Description of reference numerals: 1. a frame; 20. a blower; 21. a control cabinet; 22. a finned evaporator; 10. a middle partition plate; 11. a first chamber; 12. a second chamber; 13. a third chamber; 14. a fresh air inlet; 30. a vent; 15. a first return air inlet; 16. a second return air inlet; 17. closing the plate; 23. an air valve actuator; 18. a first connecting shaft; 19. a second connecting shaft; 24. a compressor; 25. a condenser; 26. drying the filter; 27. an expansion valve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-5, the fungus room environment integral machine comprises an edible fungus room, a frame 1, a blower 20 and a control cabinet 21, wherein the control cabinet 21 and the blower 20 are installed on the frame 1 and respectively located at two opposite sides of the frame 1, an air supply pipe, an air return pipe and a fresh air pipe connected with the frame 1 are further arranged in the edible fungus room, and the improvement is that,

at least one temperature sensor and at least one CO2 concentration sensor are also arranged in the edible fungus room; a temperature control device and a CO2 concentration control device are arranged on the rack 1, a temperature control unit and a CO2 concentration control unit are arranged in the control cabinet 21, the temperature control unit controls the temperature in the edible fungus room through the temperature control device and a temperature sensor, and the CO2 concentration control unit controls the concentration of CO2 in the edible fungus room through the CO2 concentration control device and a CO2 concentration sensor;

the CO2 concentration control device comprises a switching device and a finned evaporator 22, a middle partition plate 10 is further arranged in the rack 1, the middle partition plate 10 and the finned evaporator 22 are distributed in parallel, the interior of the rack 1 is sequentially divided into a first chamber 11, a second chamber 12 and a third chamber 13, the first chamber 11 and the second chamber 12 are respectively located on two sides of the middle partition plate 10, the second chamber 12 and the third chamber 13 are respectively located on two sides of the finned evaporator 22, the control cabinet 21 is located in the first chamber 11, the blower 20 is located on the outer side of the third chamber 13 and connected with an air supply pipe, the first chamber 11 is provided with at least one fresh air inlet 14, the second chamber 12 is provided with at least two return air inlets, and the middle partition plate 10 is provided with a vent 30; the switching means is used to open the vent 30 and simultaneously close one of the return air inlets, or to open one of the return air inlets and simultaneously close the vent 30.

So set up, through the temperature sensor who locates in the domestic fungus room, the real-time temperature in the response fungus room such as carbon dioxide concentration sensor, carbon dioxide concentration, again through the temperature control unit and with CO2 concentration control unit analysis, handle, and automatic control compressor 24, forced draught blower 20, auto-change over device etc, realize the temperature and the carbon dioxide concentration of automatic regulation control domestic fungus room internal environment, guarantee fungus room constant temperature, auto-open auto-change over device when the carbon dioxide concentration risees in the domestic fungus room, control carbon dioxide concentration in suitable within range, make and be equipped with good domestic fungus growing environment in the domestic fungus room. The invention has reasonable and compact structure, reasonable cost, simple and convenient operation and good control effect, is beneficial to large-scale and industrial planting and production of edible fungi, and is worthy of popularization and application.

In this embodiment, since only the temperature control device and the CO2 concentration control device are required to be carried by the whole rack 1, the floor area of the rack 1 is greatly reduced, and the rack 1 can be integrally installed at the top of the fungus room due to the reduction of the load, so that the cultivation area of the edible fungi is not occupied; meanwhile, because the air temperature sent by the blower 20 is basically lower than the indoor air temperature, when the blower 20 is positioned at the top end in the fungus room, the sent air can be uniformly transmitted to all corners in the fungus room, so that the temperature in the fungus room and the concentration of CO2 are uniform, and the batch, large-scale and balanced growth of edible fungi is facilitated.

It should be noted that the rack 1 may be mounted on the roof of the fungus room by means of a hanging, embedding or bridging beam, etc., or other means, which will not be described in detail herein.

In this embodiment, the second chamber 12 is provided with a first return air inlet 15 and a second return air inlet 16, wherein the first return air inlet 15 is located at the bottom or the top of the second chamber 12, the second return air inlet 16 of the rack 1 is located on the side wall of the second chamber 12, and the switching device is used for opening the vent 30 and simultaneously closing the first return air inlet 15, or is used for opening the first return air inlet 15 and simultaneously closing the vent 30; wherein, when the rack 1 is located at the top of the fungus room, the first air return inlet 15 is located at the bottom of the second chamber 12, and when the rack 1 is located on the ground of the fungus room, the first air return inlet 15 is located at the top of the second chamber 12.

In this embodiment, the switching device includes a sealing plate 17, an air valve actuator 23, and a connecting device, the sealing plate 17 is rotatably mounted on the intermediate partition 10 or the frame 1, the air valve actuator 23 enables the sealing plate 17 to have a first stop position and a second stop position through the connecting device, when the sealing plate 17 is located at the first stop position, the sealing plate 17 seals the first return air inlet 15, and when the sealing plate 17 is located at the second stop position, the sealing plate 17 seals the vent 30. This is so because the damper actuator 23 has only two positions, fully open and fully closed, and thus the closure plate 17 can assume the first rest position and the second rest position.

In this embodiment, the connecting device includes a first connecting shaft 18 and a second connecting shaft 19, one end of the first connecting shaft 18 is fixedly connected with the air valve actuator 23, and the other end is hinged with one end of the second connecting shaft 19, and the other end of the second connecting shaft 19 is rotatably mounted on the sealing plate 17; so set up, simple structure, and reduced the hindrance effect to the new trend as far as.

In the present embodiment, the temperature control means includes a compressor 24, a condenser 25, a dry filter 26, and an expansion valve 27, and the compressor 24, the condenser 25, the dry filter 26, the expansion valve 27, the fin evaporator 22, and the blower 20 are circularly connected by a refrigerant pipe, wherein the compressor 24 and the condenser 25 are located in the first chamber 11, and the dry filter 26 and the expansion valve 27 are located in the second chamber 12.

In the present embodiment, the refrigerant pipe includes a suction pipe, a discharge pipe, a high pressure liquid pipe, and a low pressure liquid pipe, and the compressor 24 is connected to the condenser 25 through the discharge pipe; the shell-and-tube condenser 25, the dry filter 26 and the expansion valve 27 are connected by a high-pressure liquid pipe; the expansion valve 27 is connected with the finned evaporator 22 through a low-pressure liquid pipe; the finned evaporator 22 is connected to a compressor 24 via a suction line.

In this embodiment, the CO2 concentration control device further includes at least one fresh air panel, and the fresh air panel is provided with a plurality of holes distributed in a staggered manner to form a fresh air inlet 14; preferably, the fresh air panels are two and are respectively located on two side walls of the first chamber 11.

In this embodiment, the CO2 concentration control device further comprises at least one air filter located in the first chamber 11 and at the fresh air inlet 14.

The working process of the embodiment is as follows:

and (3) cooling: when the temperature sensor arranged in the edible fungus room detects that the temperature is higher, the temperature sensor transmits a signal to a temperature control unit in the control cabinet 21, then a refrigerant is compressed by the compressor 24, low-temperature and low-pressure gas is changed into high-temperature and high-pressure gas, the high-temperature and high-pressure gas is connected with the condenser 25 through the exhaust pipe, exchanges heat with cooling water in the condenser, and is cooled to be changed into normal-temperature and high-pressure liquid; the normal-temperature high-pressure liquid enters the expansion valve 27 through the high-pressure liquid pipe for throttling, so that the normal-temperature high-pressure liquid is a low-temperature low-pressure gas-liquid two-phase substance; finally, low-temperature and low-pressure gas-liquid two-phase refrigerant enters the finned evaporator 22 through the low-pressure liquid pipe and is evaporated in the finned evaporator, and the refrigerant needs to absorb heat when being evaporated, so that the air entering the second chamber 12 through the first air return port and the second air return port is cooled, and the low-temperature air is conveyed into the air supply pipe through the air supply device 20 to enter the edible fungus room, so that the whole fungus room is cooled; the refrigerant after heat exchange in the finned evaporator 22 is evaporated into low-temperature and low-pressure gas, and the low-temperature and low-pressure gas returns to the compressor 24 through the air suction pipe and circulates in sequence; so that the environment in the mushroom house keeps a certain temperature.

When the temperature sensor in the edible fungus room senses that the temperature is too low, the temperature sensor transmits a signal to the electric cabinet and the compressor 24 is closed.

It is worth explaining that when the temperature outside the fungus room is obviously lower than the temperature inside the fungus room, the aim of cooling can be achieved by introducing fresh air directly.

Control process of CO2 concentration: when a CO2 concentration sensor arranged in an edible fungus room detects that the concentration of CO2 is higher, at the moment, the CO2 concentration sensor transmits a signal to a CO2 concentration control unit in a control cabinet 21, the CO2 concentration control unit immediately transmits an opening instruction to an air valve actuator 23, the air valve actuator 23 is automatically opened after receiving the signal, the air valve actuator 23 drives a first connecting shaft 18 to rotate by 90 degrees, a fresh air sealing plate 17 rotates by 90 degrees through a second connecting shaft 19, and then a first air return opening is covered, so that a fresh air channel is opened. The fresh air with low concentration of outdoor CO2 sequentially passes through the fresh air inlet 14, the air filter and the vent 30 to be mixed with the indoor air entering the second chamber 12 through the second air return inlet on the side surface; the air filter filters impurities in the air sucked out from the edible fungus room, so that the recovered air is cleaner; the mixed air is subjected to heat and mass exchange with the refrigerant in the tube in the finned evaporator 22, the water in the air is analyzed, and the temperature is reduced; fresh and low-temperature air is fed into the edible fungus room through the air feeder 20 to take away carbon dioxide and heat generated in the growth process of the edible fungus, so that the environment in the mushroom room keeps a certain temperature and carbon dioxide concentration.

When a carbon dioxide concentration sensor arranged in an edible fungus room detects that the concentration of carbon dioxide is low, at the moment, the CO2 concentration sensor transmits a signal to a CO2 concentration control unit in a control cabinet 21, the CO2 concentration control unit immediately transmits a closing instruction to an air valve actuator 23, the air valve actuator 23 is automatically closed after receiving the signal, the air valve actuator 23 drives a first connecting shaft 18 to rotate 90 degrees, a fresh air sealing plate 17 rotates 90 degrees through a second connecting shaft 19, and then the ventilation opening 30 is covered, so that a fresh air channel is closed.

Therefore, the temperature and the carbon dioxide concentration in the air are monitored in real time through the temperature sensor and the carbon dioxide concentration sensor which are arranged in the mushroom house, and the closing or opening of the compressor 24 and the air valve actuator 23 can be controlled, so that the environment in the mushroom house keeps a certain temperature and carbon dioxide concentration.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.