A new fresh air heat recovery unit for factory planting of stropharia rugosoannulata

Abstract

The utility model relates to a new trend heat recovery unit of macrocybe epigaea factory planting, include, mushroom house, air conditioning body unit, air conditioning body unit includes new trend box, new trend heat recovery unit, is equipped with new trend entrance, new trend export, exhaust inlet and exhaust outlet on it, new trend export of new trend heat recovery unit is connected to new trend box of air conditioning body unit, first exhaust port of mushroom house is connected to exhaust inlet of new trend heat recovery unit, carbon dioxide sensor sets up in the mushroom house and is used for detecting carbon dioxide concentration in the mushroom house, mushroom house control cabinet is connected with air conditioning body unit, new trend heat recovery unit, carbon dioxide sensor and new trend valve. The above scheme can effectively recover energy, maintain the stable environment in the mushroom house and reduce energy consumption in the ventilation and air exchange process.

Description

Technical Field

[0001] This utility model relates to the field of edible fungi cultivation technology, specifically to a fresh air heat recovery unit for the industrialized cultivation of giant king mushrooms. Background Technology

[0002] Factory cultivation utilizes mechanized production equipment and sophisticated environmental control systems to conduct standardized production processes for mushroom cultivation and growth within enclosed factory buildings. The key characteristics of factory-style environmental control lie in the precise control of temperature, humidity, light, carbon dioxide concentration, and maintaining optimal airflow. Ventilation is a crucial factor affecting humidity, temperature, and carbon dioxide concentration, and it is also the most energy-intensive part of the cultivation process. Currently, the most common ventilation methods are exhaust fans, air conditioning units, and integrated mushroom cultivation air conditioning systems to meet the set carbon dioxide concentration requirements for air supply and exhaust in the mushroom house. However, to minimize temperature fluctuations in the mushroom house, significant energy consumption is required for regulation. Utility Model Content

[0003] To address the aforementioned issues, the purpose of this invention is to provide a fresh air heat recovery unit for the industrial cultivation of giant king mushrooms, which can effectively recover energy, maintain a stable environment inside the mushroom house, and reduce energy consumption during ventilation and air exchange.

[0004] A new air heat recovery unit for the industrialized cultivation of king oyster mushrooms includes: The mushroom house is equipped with mushroom cultivation racks, and the mushroom house is equipped with air supply vents, air return vents, a first row of air vents, and a second row of air vents. An integrated air conditioning unit is installed outside the mushroom house and has cooling, heating and fresh air functions. The air supply outlet of the integrated air conditioning unit is connected to the air supply outlet of the mushroom house, and the return air outlet of the integrated air conditioning unit is connected to the return air outlet of the mushroom house. It also includes, The air conditioning unit includes a fresh air box, the fresh air outlet of the air conditioning unit is connected to the fresh air box, and a fresh air valve is provided to control the connection between the fresh air outlet of the air conditioning unit and the fresh air box; the fresh air box outlet is connected to the heat exchanger of the air conditioning unit. The fresh air heat recovery unit is equipped with a fresh air inlet, a fresh air outlet, an exhaust air inlet, and an exhaust air outlet; the fresh air outlet of the fresh air heat recovery unit is connected to the fresh air box of the overall air conditioning unit; the first exhaust air outlet of the mushroom house is connected to the exhaust air inlet of the fresh air heat recovery unit. A carbon dioxide sensor is installed inside the mushroom house to detect the carbon dioxide concentration inside the mushroom house. The mushroom house control cabinet is located outside the mushroom house and is connected to the air conditioning unit, the fresh air heat recovery unit, the carbon dioxide sensor, and the fresh air valve. It is used to control the opening and closing of the fresh air valve based on the detection information of the carbon dioxide sensor.

[0005] The above solution, by adding a fresh air heat recovery unit and connecting it in series with the ventilation path, effectively recovers the cold / heat energy from the exhaust gas discharged from the mushroom house, significantly reducing the energy consumed by the overall air conditioning unit to regulate the fresh air temperature when introducing fresh air. Based on real-time data from the carbon dioxide sensor, the mushroom house control cabinet intelligently decides and prioritizes the use of the lower-energy-consuming fresh air heat recovery unit for ventilation, only activating the fresh air valve of the overall air conditioning unit when the carbon dioxide concentration exceeds the standard. This tiered control strategy can ensure precise control of carbon dioxide concentration while minimizing temperature fluctuations and total system energy consumption caused by ventilation.

[0006] Preferably, the exhaust vent of the mushroom house is connected to the exhaust inlet of the fresh air heat recovery unit via an exhaust pipe. The exhaust pipe includes a first part and a second part that are connected. The first part is located inside the mushroom house. The inlet of the exhaust pipe is located in the first part and a filter device is provided at the inlet. The second part connects the first part and the exhaust inlet of the fresh air heat recovery unit.

[0007] By installing a filter device at the inlet of the exhaust duct inside the mushroom house, impurities such as spores and dust generated during the growth of edible fungi can be effectively filtered out before the exhaust air enters the fresh air heat recovery unit. The first part of the exhaust duct is located inside the mushroom house, and multiple exhaust inlets can be installed on the first part as needed to improve efficiency.

[0008] Preferably, the mushroom house is also equipped with a second exhaust vent, which is directly connected to the outside. The second exhaust vent is equipped with a positive pressure exhaust valve, which is used to control the opening and closing of the second exhaust vent.

[0009] A second exhaust vent, controlled by a positive pressure exhaust valve, is added to complement the exhaust path of the fresh air heat recovery unit. When the positive pressure inside the mushroom house is too high, or the heat recovery unit cannot handle the full exhaust volume, this valve can automatically open to directly discharge excess air outdoors, thereby ensuring that the air pressure inside the mushroom house remains stable within a reasonable range.

[0010] Preferably, the carbon dioxide sensor is located in the middle of the mushroom house. Placing the carbon dioxide sensor at the planting layer height in the middle of the mushroom house allows for more accurate detection of the true environmental concentration representing the mushroom growth area.

[0011] Preferably, the air outlets of the outdoor air conditioning unit and the mushroom house are connected via outdoor air supply ducts. An indoor air supply duct spans the interior of the mushroom house, with multiple evenly distributed air supply holes. By using an indoor air supply duct spanning the interior of the mushroom house and having evenly distributed air supply holes, a uniform air supply system is formed, ensuring that different locations on the mushroom racks within the mushroom house maintain the same growth environment.

[0012] Preferably, a static pressure box is installed inside the mushroom house. The outlet of the outdoor air supply duct is connected to the inlet of the static pressure box, and the outlet of the static pressure box is connected to the inlet of the indoor air supply duct. By setting up a static pressure box, stable and uniform air supply from the indoor air supply duct can be achieved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the planar installation of this application; Figure 2 This is a schematic diagram of the facade installation for this application.

[0014] Figure label: Mushroom house 1, mushroom cultivation racks 11 Air conditioning unit 2, fresh air box 21, Fresh air heat recovery unit 3, fresh air inlet 31, exhaust air outlet 32, exhaust air inlet 33, fresh air outlet 34. Mushroom house control cabinet 4, carbon dioxide sensor 41 Outdoor air supply duct 51, static pressure box 52, indoor air supply duct 53, air supply vent 531, return air duct 54, exhaust air duct 55, fresh air duct 56, first exhaust vent 57, second exhaust vent 58 Fresh air valve 61, positive pressure exhaust valve 62, return air valve 63. Detailed Implementation

[0015] The specific embodiments of this application will be further described below with reference to the accompanying drawings.

[0016] As shown in Figures 1 and 2, this embodiment discloses a fresh air heat recovery unit for the industrialized cultivation of giant puffball mushrooms, including a mushroom house 1, an integrated air conditioning unit 2, a fresh air heat recovery unit 3, and a mushroom house control cabinet 4.

[0017] The mushroom house 1 is equipped with mushroom cultivation racks 11, which are evenly arranged in the mushroom house 1 according to the growth habits of the mushrooms.

[0018] The air conditioning unit 2 has cooling, heating, and fresh air functions. The specific structure and principles for achieving these functions are existing technologies and will not be described in detail here. In practical applications, mature air conditioning units with the above functions can be selected. The air conditioning unit 2 is controlled by the mushroom house control cabinet 4, which can realize the operation of cooling, heating, and fresh air modes, as well as the adjustment of start / stop and airflow.

[0019] The air conditioning unit 2 includes a fresh air box 21. The fresh air outlet of the air conditioning unit 2 is connected to the fresh air box, and a fresh air valve 61 is provided to control the connection between the fresh air outlet of the air conditioning unit 2 and the fresh air box. The outlet of the fresh air box is connected to the heat exchanger of the air conditioning unit 2. When the air conditioning unit 2 is operating in the fresh air supply mode and the fresh air valve 61 is open, the air conditioning unit 2 draws in a portion of outdoor fresh air (usually at a higher temperature). This fresh air mixes with the circulating air (usually at a lower temperature) drawn in from the return air vent of the mushroom house 1. The air flows through the heat exchanger and exchanges heat with the refrigerant. Finally, the air is delivered into the mushroom house 1 by the outdoor air supply duct 51 via a fan.

[0020] The mushroom house 1 is equipped with an air supply vent, a return air vent, and a first exhaust vent 57. The air supply vent (outlet) of the air conditioning unit 2 is connected to the air supply vent of the mushroom house 1 to regulate the temperature, humidity, carbon dioxide concentration, etc. inside the mushroom house 1. Outside the mushroom house 1, the air supply vent of the air conditioning unit 2 is connected to the air supply vent of the mushroom house 1 through an outdoor air supply duct 51, which is equipped with an insulation layer. The mushroom house 1 is equipped with an indoor air supply duct 53 that spans the interior of the mushroom house 1. The indoor air supply duct 53 is directly connected to the outlet of the static pressure box 52, and the air supplied by the air conditioning unit 2 is sent into the indoor air supply duct 53. Multiple air supply holes 531 are evenly distributed on the indoor air supply duct 53. The air supplied by the air conditioning unit 2 into the indoor air supply duct 53 overflows through the air supply holes 531. The uniform air supply is achieved through the direction of the indoor air supply duct 53 and the distribution of the air supply holes 531, so that the mushroom planting racks 11 in the mushroom house 1 can maintain a consistent growth environment.

[0021] Preferably, a static pressure box 52 is also provided in the mushroom house 1. The outlet of the outdoor air supply duct 51 is connected to the inlet of the static pressure box 52, and the outlet of the static pressure box 52 is connected to the inlet of the indoor air supply duct 53. The mushroom house 1 is provided with one or more indoor air supply ducts 53, and all indoor air supply ducts 53 are connected to the same static pressure box 52. The static pressure box 52 provides uniform pressure to each branch duct, so that the air flow velocity in each branch duct is consistent, and the static pressure box 52 can stabilize the airflow and achieve uniform air supply.

[0022] The return air vent of the air conditioning unit 2 is connected to the return air vent of the mushroom house 1. Air from the mushroom house 1 is drawn into the air conditioning system, processed, and then returned. The return air vent of the air conditioning unit 2 and the return air vent of the mushroom house 1 are connected by a return air duct 54, and a return air valve 63 is installed between them. The return air duct 54 is equipped with an insulation layer to reduce energy loss. The insulation layer on the outdoor supply air duct 51 and the return air duct 54 can be insulation cotton wrapped around the ducts. The insulation layer can reduce the energy loss of the air conditioning system.

[0023] The fresh air heat recovery unit 3, also known as a fresh air exchanger, has a structure and working principle that are existing technologies. One of the improvements in this application is the addition of the fresh air heat recovery unit 3 and its series connection to the ventilation path, which effectively recovers the cold / heat energy in the exhaust gas discharged from the mushroom house 1, significantly reducing the energy consumed by the overall air conditioning unit 2 to adjust the fresh air temperature when introducing fresh air. The fresh air heat recovery unit 3 recovers the cold and heat energy of the exhaust air in the mushroom house 1 to adjust the fresh air temperature. The fresh air heat recovery unit 3 is equipped with a fresh air inlet 31, a fresh air outlet 34, an exhaust air inlet 33, and an exhaust air outlet 32; the fresh air outlet 34 of the fresh air heat recovery unit 3 is connected to the fresh air box of the overall air conditioning unit 2; the first exhaust air outlet 57 of the mushroom house 1 is connected to the exhaust air inlet 33 of the fresh air heat recovery unit 3. The fresh air outlet 34 of the fresh air heat recovery unit 3 is connected to the fresh air box of the air conditioning unit 2 through the fresh air duct 56. When the fresh air heat recovery unit 3 is working, the outdoor air enters the interior after being filtered through the fresh air inlet 31 of the fresh air heat recovery unit 3, and exchanges heat with the indoor air entering the fresh air heat recovery unit 3 from the exhaust air inlet 33. The temperature of the air entering from the fresh air inlet 31 is regulated after heat exchange, and then enters the fresh air box of the air conditioning unit 2 through the fresh air duct 56.

[0024] Therefore, in this system, when fresh air needs to be supplied to the mushroom house 1, outdoor air can be drawn in from the fresh air inlet 31 through the fresh air heat recovery unit 3, or a portion of outdoor fresh air can be drawn in simultaneously from the air conditioning unit 2. In this embodiment, the carbon dioxide concentration in the mushroom house 1 is detected by the carbon dioxide sensor 41. Based on the carbon dioxide concentration, the system controls whether to activate the fresh air function to ventilate the mushroom house 1, and whether to draw in outdoor air only through the fresh air heat recovery unit 3 or simultaneously from the air conditioning unit 2. The mushroom house control cabinet 4 is connected to the air conditioning unit 2, the fresh air heat recovery unit 3, the carbon dioxide sensor 41, and the fresh air valve 61. It is used to acquire the detection information from the carbon dioxide sensor 41 and control the operating status of the air conditioning unit 2 and the fresh air heat recovery unit 3, thereby automatically realizing ventilation in the mushroom house 1.

[0025] In a preferred embodiment, the exhaust vent of the mushroom house 1 is connected to the exhaust inlet 33 of the fresh air heat recovery unit 3 via an exhaust duct 55. The exhaust duct 55 includes a first part and a second part that are connected. The first part is located inside the mushroom house 1, and the inlet of the exhaust duct 55 is located in the first part, where a filter device is provided. The second part connects the first part and the exhaust inlet 33 of the fresh air heat recovery unit 3. By providing a filter device at the inlet of the exhaust duct 55 inside the mushroom house 1, impurities such as spores and dust generated during the growth of edible fungi can be effectively filtered out before the exhaust gas enters the fresh air heat recovery unit 3. The first part of the exhaust duct 55 is located inside the mushroom house 1, and multiple exhaust inlets can be provided on the first part as needed to improve efficiency.

[0026] In addition to the first exhaust vent 57 mentioned above, the mushroom house 1 is also equipped with a second exhaust vent 58, which is directly connected to the outside. A positive pressure exhaust valve 62 is installed on the second exhaust vent, which controls the opening and closing of the second exhaust vent 58. By adding a second exhaust vent controlled by the positive pressure exhaust valve 62, when the positive pressure inside the mushroom house 1 is too high, or when the fresh air heat recovery unit 3 cannot handle the entire exhaust volume, this valve can automatically open, directly expelling excess air to the outside, thereby ensuring that the air pressure inside the mushroom house 1 remains stable within a reasonable range.

[0027] The working process of this system is as follows: Whether mushroom house 1 needs ventilation is determined by comparing the detected value of carbon dioxide sensor 41 inside mushroom house 1 with the set value. The mushroom house control cabinet 4 then issues a command to prioritize the activation of the fresh air heat recovery unit 3. If the carbon dioxide concentration cannot reach the set value of mushroom house 1 within the set time, the fresh air valve 61 of the edible mushroom air conditioning unit 2 is opened. The ventilation of mushroom house 1 under high summer temperatures is illustrated as an example: Outdoor high-temperature air is filtered through the fresh air inlet 31 of the fresh air heat recovery unit 3 before entering the unit for heat exchange. After cooling, it becomes medium-temperature air and then enters the fresh air box of the integrated mushroom air conditioning unit 2 through the fresh air duct 56. When the mushroom house 1 requires a large amount of fresh air, the fresh air valve 61 of the integrated mushroom air conditioning unit 2 opens, drawing in some outdoor high-temperature air. The mixed air enters the integrated mushroom air conditioning unit 2 and mixes with the lower-temperature air in the mushroom house 1 drawn in from the return air vent. It then flows through the heat exchanger to exchange heat with the refrigerant, and is then sent by the fan through the outdoor air supply duct 51 to the static pressure box 52 of the mushroom house 1. The indoor air supply duct 53 distributes and slows the airflow, and the air is evenly distributed into the mushroom house 1 through the air supply holes 531. Excess air in the mushroom house 1 is first filtered by the filter at the first exhaust vent 57 before entering the exhaust duct 55. After exchanging heat with the outdoor fresh air in the fresh air heat recovery unit 3, it is discharged through the exhaust outlet 32. The remaining air is then exhausted to the outside through the positive pressure exhaust valve 62, completing the cooling and ventilation process.

Claims

1. A fresh air heat recovery unit for the industrialized cultivation of *Stropharia masticata*, comprising, The mushroom house is equipped with mushroom cultivation racks, and the mushroom house is equipped with air supply vents, air return vents, a first row of air vents, and a second row of air vents. An integrated air conditioning unit is installed outside the mushroom house and has cooling, heating and fresh air functions. The air supply outlet of the integrated air conditioning unit is connected to the air supply outlet of the mushroom house, and the return air outlet of the integrated air conditioning unit is connected to the return air outlet of the mushroom house. Its features are, It also includes, The air conditioning unit includes a fresh air box, the fresh air outlet of the air conditioning unit is connected to the fresh air box, and a fresh air valve is provided to control the connection between the fresh air outlet of the air conditioning unit and the fresh air box; the fresh air box outlet is connected to the heat exchanger of the air conditioning unit. The fresh air heat recovery unit is equipped with a fresh air inlet, a fresh air outlet, an exhaust air inlet, and an exhaust air outlet; the fresh air outlet of the fresh air heat recovery unit is connected to the fresh air box of the overall air conditioning unit; the first exhaust air outlet of the mushroom house is connected to the exhaust air inlet of the fresh air heat recovery unit. A carbon dioxide sensor is installed inside the mushroom house to detect the carbon dioxide concentration inside the mushroom house; The mushroom house control cabinet is located outside the mushroom house and is connected to the air conditioning unit, the fresh air heat recovery unit, the carbon dioxide sensor, and the fresh air valve. It is used to control the opening and closing of the fresh air valve based on the detection information of the carbon dioxide sensor.

2. The fresh air heat recovery unit for industrialized cultivation of *Agaricus bisporus* according to claim 1, characterized in that, The exhaust vent of the mushroom house is connected to the exhaust inlet of the fresh air heat recovery unit through an exhaust pipe. The exhaust pipe includes a first part and a second part that are connected. The first part is located inside the mushroom house. The inlet of the exhaust pipe is located in the first part and a filter device is provided at the inlet. The second part connects the first part and the exhaust inlet of the fresh air heat recovery unit.

3. The fresh air heat recovery unit for industrialized cultivation of *Agaricus bisporus* according to claim 1, characterized in that, The second exhaust vent is directly connected to the outside. A positive pressure exhaust valve is installed on the second exhaust vent, which is used to control the opening and closing of the second exhaust vent.

4. The fresh air heat recovery unit for industrialized cultivation of *Agaricus bisporus* according to claim 1, characterized in that, The carbon dioxide sensor is located in the middle of the mushroom house.

5. The fresh air heat recovery unit for industrialized cultivation of *Agaricus bisporus* according to claim 1, characterized in that, The air outlet of the outdoor air conditioning unit is connected to the air outlet of the mushroom house through an outdoor air supply duct. Inside the mushroom house, there is an indoor air supply duct that spans the interior of the mushroom house, with multiple air supply holes evenly distributed on it.

6. The fresh air heat recovery unit for industrialized cultivation of *Agaricus bisporus* according to claim 1, characterized in that, The mushroom house is equipped with a static pressure box. The outlet of the outdoor air supply pipe is connected to the inlet of the static pressure box, and the outlet of the static pressure box is connected to the inlet of the indoor air supply pipe. By setting up the static pressure box, it is possible to achieve stable and uniform air supply from the indoor air supply pipe.

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