A greenhouse carbon dioxide release and concentration regulating device

Abstract

The utility model relates to the technical field of greenhouse ventilation regulation and control, disclose a kind of greenhouse carbon dioxide release and concentration regulation and control device, including ventilation regulation pipe, the middle part of ventilation regulation pipe outside is equipped with outdoor installation hanging plate.The utility model, by being equipped with first carbon dioxide monitor in the both sides of ventilation regulation pipe inside, second carbon dioxide monitor is equipped with in the both ends of concentration circulation pipe inside, play concentration accurate measurement effect, after setting concentration vertical, can be according to concentration height, by concentration regulator control ventilation ventilator and carry out exhaust or air intake operation, carbon dioxide air supplement bottle can carry out concentration supplement, automatically adjust control stability, and dustproof grille plate can dustproof ventilation, flue gas control valve can play fireproof and dense smoke closing effect, make the device to the concentration of carbon dioxide real-time monitoring, reach the automatic carbon dioxide concentration adjustment and control effect, and smoke and fireproof effect is good, improve the convenience and safety of ventilation.

Description

Technical Field

[0001] This utility model relates to the field of greenhouse ventilation control technology, and in particular to a greenhouse carbon dioxide release and concentration control device. Background Technology

[0002] In greenhouse environments, carbon dioxide plays a crucial role, often referred to as "plant food," and is a key raw material for photosynthesis. By rationally controlling the carbon dioxide concentration in greenhouses, the intensity and efficiency of crop photosynthesis can be significantly improved, promoting robust root development, enhancing product quality, and ultimately, substantially increasing crop yield. To fully leverage the positive effects of carbon dioxide in greenhouses, a greenhouse carbon dioxide release and concentration control device has been developed to create the most suitable environmental conditions for crop growth.

[0003] Currently available greenhouse carbon dioxide systems, while facilitating photosynthesis in crops and promoting plant growth, suffer from several drawbacks. When the carbon dioxide concentration drops sharply due to excessive consumption during photosynthesis, existing systems cannot quickly increase ventilation to adequately introduce carbon dioxide from the outside to meet crop needs. Conversely, when the carbon dioxide concentration is too high, ventilation cannot be reduced effectively or promptly. This results in insufficient concentration control and release compensation capabilities. Maintaining ventilation capacity is difficult while simultaneously controlling carbon dioxide concentration, leading to inadequate automatic adjustment convenience, insufficient accuracy and control of greenhouse carbon dioxide detection, and relatively weak indoor smoke and fire prevention control. In the event of a fire or high smoke concentration, the ventilation system cannot be easily and conveniently controlled, resulting in insufficient safety and inadequate automation. Therefore, we propose a greenhouse carbon dioxide release and concentration control device to address these issues. Utility Model Content

[0004] In response to the problems raised, this utility model provides a greenhouse carbon dioxide release and concentration control device to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A greenhouse carbon dioxide release and concentration control device includes a ventilation regulating pipe, and an outdoor mounting plate is installed in the middle of the outer side of the ventilation regulating pipe;

[0007] The ventilation regulating pipe is connected to a concentration circulation pipe at one end near the room. The other end of the ventilation regulating pipe is equipped with a dustproof grille and a flue gas control valve. Ventilation fans with opposite airflow directions are provided on both sides of the inside of the ventilation regulating pipe. A first carbon dioxide monitor is provided at both ends of the inside of the ventilation regulating pipe, and a second carbon dioxide monitor is provided at both ends of the inside of the concentration circulation pipe.

[0008] The outdoor mounting plate has a carbon dioxide replenishment cylinder connected to a ventilation regulating pipe on its outer side, and a concentration regulator is installed on the outdoor mounting plate.

[0009] Preferably, the two ends of the ventilation regulating pipe pass through the inside and outside of the greenhouse respectively. The ventilation regulating pipe is inserted and fixed to the inside of the outdoor mounting plate. The output ends of the two first carbon dioxide monitors and the second carbon dioxide monitor are electrically connected to the input end of the concentration controller. The output end of the concentration controller is electrically connected to the input ends of the flue gas control valve, the ventilation fan and the carbon dioxide replenishment cylinder respectively. The concentration controller is an automatic controller or a digital display controller.

[0010] Preferably, the concentration circulation pipe is inserted and bolted to the indoor end of the ventilation regulating pipe, and a ventilation opening connected to the ventilation regulating pipe is opened in the middle of the concentration circulation pipe. Both ends of the concentration circulation pipe are equipped with circulating fans blowing in the same direction. The two second carbon dioxide monitors are located on the opposite side of the two circulating fans. The input end of the circulating fan is electrically connected to the output end of the concentration controller.

[0011] Preferably, the dustproof grid plate has a dustproof ventilation cotton board on its inner side, the dustproof ventilation cotton board is filled between the ventilation regulating pipe and the dustproof grid plate, the dustproof grid plate is sleeved and fixed at the port of the ventilation regulating pipe, and the dustproof ventilation cotton board is made of meltblown nonwoven fabric.

[0012] Preferably, the smoke control valve is equipped with a smoke monitoring alarm on its inner side, the output end of the smoke monitoring alarm is electrically connected to the input end of the smoke control valve, the smoke control valve is a smoke exhaust fire damper, and the smoke control valve is a normally open valve.

[0013] Preferably, both the first and second carbon dioxide monitors are carbon dioxide concentration monitoring sensors, and a temperature monitoring sensor is provided on the outside of the concentration circulation tube. The output terminal of the temperature monitoring sensor is electrically connected to the input terminal of the concentration controller.

[0014] Preferably, the bottom of the outdoor mounting plate is provided with a sleeve mounting frame, which is sleeved and bolted to the outside of the ventilation regulating pipe, and the outdoor mounting plate is hung and fixed to the ventilation regulating pipe by the sleeve mounting frame.

[0015] Preferably, the ventilation regulating pipe has an insertion interface on the side away from the dustproof grille, the concentration circulation pipe is vertically inserted into the insertion interface, the concentration circulation pipe and the outdoor mounting plate are assembled in a cross shape, both sides of the concentration circulation pipe are provided with bolting gaskets, the bolting gaskets are bolted and fixed to the top of the outdoor mounting plate, and the concentration circulation pipe is bolted and fixed to the outdoor mounting plate by the bolting gaskets.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. This greenhouse carbon dioxide release and concentration control device features an outdoor mounting plate on the outside of the ventilation regulating pipe, facilitating installation outside the greenhouse. The ventilation regulating pipe allows for ventilation both indoors and outdoors. Two first carbon dioxide monitors are installed on both sides of the ventilation regulating pipe, and a concentration circulation pipe connects to the end of the pipe. During indoor circulation, the first carbon dioxide monitors on both sides monitor the indoor carbon dioxide concentration. When the average carbon dioxide concentration detected by the two second carbon dioxide monitors is higher than a specified concentration, the concentration controller controls the ventilation fan to exhaust air. When the concentration is lower than a specified concentration, the concentration controller controls the ventilation fan to intake air, and simultaneously, a carbon dioxide replenishment cylinder replenishes the indoor carbon dioxide, achieving automated carbon dioxide concentration adjustment and control. This device provides both ventilation and carbon dioxide concentration adjustment, enabling real-time monitoring of carbon dioxide concentration and achieving automated carbon dioxide concentration adjustment and control.

[0018] 2. This greenhouse carbon dioxide release and concentration control device features a dustproof grille and a smoke control valve on one side of the ventilation regulating pipe. The dustproof grille prevents foreign objects from entering and provides dust-proof ventilation. The smoke control valve controls the opening and closing of the pipe. In the event of a fire or other accident indoors or outdoors, the smoke monitoring alarm on the smoke control valve can detect smoke and fire, quickly closing the smoke control valve to isolate the air, greatly reducing the danger during a fire, improving ventilation safety, and enhancing the device's smoke and fire prevention effects, as well as improving the convenience and safety of ventilation. Attached Figure Description

[0019] Figure 1 This invention provides a frontal perspective three-dimensional schematic diagram of a greenhouse carbon dioxide release and concentration control device;

[0020] Figure 2 This utility model provides a top-view perspective view of a greenhouse carbon dioxide release and concentration control device;

[0021] Figure 3 This invention provides a frontal cross-sectional perspective view of a greenhouse carbon dioxide release and concentration control device.

[0022] Figure 4 This is a three-dimensional front view sectional view of the connection structure between the ventilation regulating pipe and the concentration circulation pipe of this utility model;

[0023] Figure 5This utility model provides a side perspective perspective view of the connection structure between the outdoor mounting plate and the sleeve mounting frame;

[0024] Figure 6 This is a top-view perspective view of the connection structure between the concentration circulation pipe and the ventilation port of this utility model.

[0025] In the diagram: 1. Ventilation regulating pipe; 2. Outdoor mounting plate; 21. Socket mounting frame; 3. Concentration circulation pipe; 31. Ventilation outlet; 32. Circulating fan; 33. Plug-in interface; 34. Bolted gasket; 4. Dustproof grille; 41. Dustproof ventilation cotton board; 5. Smoke control valve; 51. Smoke monitoring alarm; 6. Ventilation fan; 7. First carbon dioxide monitor; 8. Second carbon dioxide monitor; 9. Carbon dioxide replenishment cylinder; 10. Concentration controller; 11. Temperature monitoring sensor. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Please see Figures 1-6 A greenhouse carbon dioxide release and concentration control device includes a ventilation regulating pipe 1, and an outdoor mounting plate 2 is installed in the middle of the outer side of the ventilation regulating pipe 1.

[0029] The ventilation regulating pipe 1 is connected to a concentration circulation pipe 3 at one end near the room. The other end of the ventilation regulating pipe 1 is equipped with a dustproof grille 4 and a flue gas control valve 5. Ventilation fans 6 with opposite airflow directions are provided on both sides of the inside of the ventilation regulating pipe 1. A first carbon dioxide monitor 7 is provided at both ends of the inside of the ventilation regulating pipe 1, and a second carbon dioxide monitor 8 is provided at both ends of the inside of the concentration circulation pipe 3.

[0030] Among them, the outer side of the outdoor mounting plate 2 is provided with a carbon dioxide replenishment cylinder 9 connected to the ventilation regulating pipe 1, and the outdoor mounting plate 2 is provided with a concentration regulator 10.

[0031] The beneficial effects of this solution are as follows: An outdoor mounting plate 2 is provided on the outside of the ventilation regulating pipe 1 for easy installation outside the greenhouse. The ventilation regulating pipe 1 can ventilate both indoors and outdoors. A first carbon dioxide monitor 7 is installed on both sides inside the ventilation regulating pipe 1, and a concentration circulation pipe 3 is connected to the end of the ventilation regulating pipe 1. When circulating air indoors, the first carbon dioxide monitor 7 on both sides can monitor the indoor carbon dioxide concentration. When the average carbon dioxide concentration detected by the two second carbon dioxide monitors 8 is higher than a specified concentration, the concentration controller 10 can control the ventilation fan 6 to perform exhaust ventilation. When the concentration is lower than a specified concentration, the concentration controller 10 controls the ventilation fan 6 to perform intake ventilation. At the same time, the carbon dioxide replenishment cylinder 9 replenishes the indoor carbon dioxide, achieving automated carbon dioxide concentration adjustment and control.

[0032] The ventilation regulating pipe 1 is equipped with a dustproof grille 4 and a smoke control valve 5 on the side away from the room. The dustproof grille 4 serves to prevent foreign objects from entering and to provide dust-proof ventilation. The smoke control valve 5 can control the opening and closing of the pipe. The smoke monitoring alarm 51 on the smoke control valve 5 monitors smoke and fire, and quickly closes the smoke control valve 5 to isolate the air, greatly reducing the danger in the event of a fire and improving ventilation safety. The device can monitor the carbon dioxide concentration in real time, achieving automated carbon dioxide concentration adjustment and control. It also has good smoke and fire prevention effects, improving the convenience and safety of ventilation.

[0033] Furthermore, the two ends of the ventilation regulating pipe 1 pass through the inside and outside of the greenhouse respectively. The ventilation regulating pipe 1 is inserted and fixed to the inside of the outdoor mounting plate 2. The output ends of the two first carbon dioxide monitors 7 and the second carbon dioxide monitor 8 are electrically connected to the input end of the concentration controller 10. The output end of the concentration controller 10 is electrically connected to the input end of the flue gas control valve 5, the ventilation fan 6 and the carbon dioxide replenishment cylinder 9 respectively. The concentration controller 10 is an automatic controller or a digital display controller.

[0034] Specifically, the ventilation regulating pipe 1 runs through the greenhouse wall, with its two ends located inside and outside the greenhouse respectively. It works in conjunction with ventilation fans 6 that exhaust air in opposite directions, facilitating control of inward or outward ventilation and ensuring convenient ventilation operation. The outputs of the first carbon dioxide monitor 7 and the second carbon dioxide monitor 8 are electrically connected to the input of the concentration controller 10, allowing the concentration controller 10 to detect changes in carbon dioxide concentration monitored by both monitors. The concentration controller 10 then controls the flue gas control valve 5, the ventilation fan 6, and the carbon dioxide replenishment cylinder 9, enabling ventilation introduction and exhaust, duct opening and closing, and carbon dioxide replenishment. The concentration controller 10 is an automatic controller or a digital display controller, facilitating automated control. When the carbon dioxide concentration falls below or exceeds a specified value, the concentration controller 10 can automatically adjust it, ensuring adaptability and convenience.

[0035] Furthermore, the concentration circulation pipe 3 is inserted and bolted to the indoor end of the ventilation regulating pipe 1. A ventilation opening 31 connected to the ventilation regulating pipe 1 is opened in the middle of the concentration circulation pipe 3. Both ends of the internal part of the concentration circulation pipe 3 are equipped with circulating fans 32 that blow air in the same direction. Two second carbon dioxide monitors 8 are located on the opposite side of the two circulating fans 32. The input end of the circulating fan 32 is electrically connected to the output end of the concentration controller 10.

[0036] Specifically, the concentration circulation pipe 3 is inserted and bolted to the indoor end of the ventilation regulating pipe 1, which is convenient for indoor installation. The concentration circulation pipe 3 is used to adjust the indoor carbon dioxide concentration. A ventilation port 31 is opened in the middle of the concentration circulation pipe 3, which is connected to the ventilation regulating pipe 1, so that the concentration circulation pipe 3 and the ventilation regulating pipe 1 are connected, and the circulation ventilation is stable and convenient. It is easy for the second carbon dioxide monitor 8 inside the concentration circulation pipe 3 to monitor and measure accurately. Both ends of the concentration circulation pipe 3 are equipped with circulating fans 32 that blow air in the same direction to circulate air in the greenhouse. The circulation is stable and has good adaptability. The input end of the circulating fan 32 is electrically connected to the output end of the concentration controller 10, which facilitates the ventilation switch control of the concentration controller 10 and has good adaptability.

[0037] Furthermore, a dustproof ventilation cotton board 41 is provided on the inner side of the dustproof grid plate 4. The dustproof ventilation cotton board 41 is filled between the ventilation regulating pipe 1 and the dustproof grid plate 4. The dustproof grid plate 4 is sleeved and fixed at the port of the ventilation regulating pipe 1. The dustproof ventilation cotton board 41 is made of meltblown nonwoven fabric.

[0038] Specifically, the inner side of the dustproof grid plate 4 is provided with a dustproof ventilation cotton plate 41, which is made of meltblown nonwoven fabric. While guiding ventilation, it also plays a role in dust prevention and isolation, making it easy to filter and adapt. The dustproof grid plate 4 can be sleeved and fixed to the end of the ventilation regulating pipe 1, and it also plays a role in squeezing and fixing the dustproof ventilation cotton plate 41. The adaptation is stable and convenient, and the dustproof ventilation is convenient.

[0039] Furthermore, a smoke monitoring alarm 51 is provided inside the smoke control valve 5. The output end of the smoke monitoring alarm 51 is electrically connected to the input end of the smoke control valve 5. The smoke control valve 5 is a smoke exhaust fire damper and a normally open valve.

[0040] Specifically, the smoke control valve 5 is equipped with a smoke monitoring alarm 51 on its inner side. The smoke control valve 5 is a smoke exhaust fire damper and is a normally open valve, allowing for convenient airflow under normal conditions. When the smoke monitoring alarm 51 detects dense smoke or changes in high temperature, it can quickly control the smoke control valve 5 to close, thereby closing the ventilation regulating pipe 1. This makes it difficult for dense smoke fire to enter the room, or for it to burn out quickly inside the room, making it difficult for oxygen to be replenished by external ventilation, thus providing good fire protection.

[0041] Furthermore, both the first carbon dioxide monitor 7 and the second carbon dioxide monitor 8 are carbon dioxide concentration monitoring sensors. A temperature monitoring sensor 11 is provided on the outside of the concentration circulation tube 3. The output terminal of the temperature monitoring sensor 11 is electrically connected to the input terminal of the concentration controller 10.

[0042] Specifically, both the first carbon dioxide monitor 7 and the second carbon dioxide monitor 8 are carbon dioxide concentration monitoring sensors, which provide stable and convenient monitoring. A temperature monitoring sensor 11 is provided on the outside of the concentration circulation tube 3, which can monitor the indoor temperature. When the indoor temperature is too low, the flue gas control valve 5 can be closed by the concentration controller 10 to prevent the loss of indoor temperature. When the indoor carbon dioxide concentration is too low, it can be supplemented by the carbon dioxide replenishment cylinder 9, which is convenient to use.

[0043] Furthermore, the bottom of the outdoor mounting plate 2 is provided with a sleeve mounting frame 21, which is sleeved and bolted to the outside of the ventilation regulating pipe 1. The outdoor mounting plate 2 is hung and fixed to the ventilation regulating pipe 1 by the sleeve mounting frame 21.

[0044] Specifically, the bottom of the outdoor mounting plate 2 is provided with a sleeve mounting frame 21. The sleeve mounting frame 21 is convenient to be sleeved and fixed to the outside of the ventilation regulating pipe 1. After the outdoor mounting plate 2 is installed outside the greenhouse, it is convenient to fix the ventilation regulating pipe 1 and ensure stable load-bearing.

[0045] Furthermore, the ventilation regulating pipe 1 has an insertion interface 33 on the side away from the dustproof grille plate 4. The concentration circulation pipe 3 is vertically inserted into the insertion interface 33. The concentration circulation pipe 3 and the outdoor mounting plate 2 are assembled in a cross shape. Both sides of the concentration circulation pipe 3 are provided with bolting gaskets 34. The bolting gaskets 34 are bolted and fixed to the top of the outdoor mounting plate 2. The concentration circulation pipe 3 is bolted and fixed to the outdoor mounting plate 2 by the bolting gaskets 34.

[0046] Specifically, the ventilation regulating pipe 1 is provided with an insertion interface 33, which facilitates the insertion and fixing of the concentration circulation pipe 3 to the ventilation regulating pipe 1. The pipe 3 can be arranged in a cross shape, ensuring stable ventilation operation. Furthermore, both sides of the concentration circulation pipe 3 are provided with bolting gaskets 34, which allow the concentration circulation pipe 3 to be bolted and fixed to the outdoor mounting plate 2. This makes installation and fixing convenient and provides good installation adaptability.

[0047] How to use and how to work this device:

[0048] An outdoor mounting plate 2 is installed outside the ventilation regulating pipe 1. The outdoor mounting plate 2 can be hung and fixed to the outside of the greenhouse. The ventilation regulating pipe 1 connects the inside and outside of the greenhouse. A first carbon dioxide monitor 7 is installed on both sides inside the ventilation regulating pipe 1. Ventilation fans 6 with opposite air outlets are installed on both sides inside the ventilation regulating pipe 1. Ventilation can be introduced or discharged in a coupled manner. Only one of the two ventilation fans 6 can be started at the same time. The two first carbon dioxide monitors 7 can monitor the carbon dioxide concentration on both sides of the ventilation regulating pipe 1 respectively.

[0049] Ventilation regulating pipe 1 is connected to a concentration circulation pipe 3 on the side closest to the greenhouse. The concentration circulation pipe 3 can perform vertical ventilation circulation to circulate and guide the air in the room, preventing the carbon dioxide concentration in a single part of the room from being too high and affecting the concentration monitoring effect. The upper and lower sides of the concentration circulation pipe 3 are equipped with second carbon dioxide monitors 8, which can stably and accurately monitor the carbon dioxide concentration in the greenhouse. When the average carbon dioxide concentration detected by the two second carbon dioxide monitors 8 is higher than the specified concentration, the concentration controller 10 can control the ventilation fan 6 to perform exhaust operation, exhausting the indoor air to the outside, and performing ventilation circulation to quickly reduce the concentration. When the concentration is too low, the concentration controller 10 can control the ventilation fan 6 to perform intake operation. The two first carbon dioxide monitors 7 monitor whether the concentration inside and outside are the same. When the indoor concentration is lower than the outdoor concentration, the carbon dioxide replenishment cylinder 9 is opened to replenish the indoor carbon dioxide during the air introduction process, achieving the function of automatic carbon dioxide concentration adjustment and control, achieving the function of ventilation while adjusting the carbon dioxide concentration.

[0050] The ventilation regulating pipe 1 is equipped with a dustproof grille 4 and a smoke control valve 5 on the side away from the room. The dustproof grille 4 serves to prevent foreign objects from entering and to provide dustproof ventilation. The smoke control valve 5 can control the opening and closing of the pipe. In the event of a fire or accident indoors or outdoors, the smoke monitoring alarm 51 on the smoke control valve 5 can monitor the smoke fire and quickly close the smoke control valve 5 to isolate the air, greatly reducing the danger in the event of a fire and improving ventilation safety.

[0051] The ventilation regulating pipe 1 runs through the greenhouse wall, with its two ends located inside and outside the greenhouse respectively. It works in conjunction with the ventilation fans 6 that blow air in opposite directions, making it easy to control inward ventilation or outward exhaust. The ventilation operation is convenient. The output ends of the first carbon dioxide monitor 7 and the second carbon dioxide monitor 8 are electrically connected to the input end of the concentration controller 10, so that the changes in carbon dioxide concentration monitored by the two first carbon dioxide monitors 7 and the second carbon dioxide monitor 8 can be detected by the concentration controller 10. The concentration controller 10 then controls the flue gas control valve 5, the ventilation fan 6 and the carbon dioxide replenishment cylinder 9, which can respectively carry out ventilation introduction and exhaust, duct opening and closing and carbon dioxide concentration replenishment. The concentration controller 10 is an automatic controller or digital display controller, which is convenient for automatic control. When the carbon dioxide concentration is lower or higher than the specified value, the concentration controller 10 can automatically control and adjust it, which is adaptable and convenient.

[0052] The concentration circulation pipe 3 is inserted and bolted to the indoor end of the ventilation regulating pipe 1, which is convenient for installation indoors. The concentration circulation pipe 3 is used to adjust the indoor carbon dioxide concentration. The middle of the concentration circulation pipe 3 is provided with a ventilation port 31 that is connected to the ventilation regulating pipe 1, so that the concentration circulation pipe 3 and the ventilation regulating pipe 1 are connected, and the circulation ventilation is stable and convenient. It is convenient for the second carbon dioxide monitor 8 inside the concentration circulation pipe 3 to monitor and measure accurately. Both ends of the concentration circulation pipe 3 are provided with circulating fans 32 that blow air in the same direction to circulate air in the greenhouse. The circulation is stable and has good adaptability. The input end of the circulating fan 32 is electrically connected to the output end of the concentration controller 10, which is convenient for the ventilation switch control of the concentration controller 10 and has good adaptability.

[0053] The inner side of the dustproof grid plate 4 is provided with a dustproof ventilation cotton plate 41, which is made of meltblown nonwoven fabric. While guiding ventilation, it also plays a role in dust isolation and is easy to filter and adapt. The dustproof grid plate 4 can be sleeved and fixed to the end of the ventilation regulating pipe 1, and it also plays a role in squeezing and fixing the dustproof ventilation cotton plate 41. The adaptation is stable and convenient, and the dustproof ventilation is convenient.

[0054] The smoke control valve 5 is equipped with a smoke monitoring alarm 51 on its inner side. The smoke control valve 5 is a smoke exhaust fire damper and is a normally open valve, which can facilitate the flow of air under normal conditions. When the smoke monitoring alarm 51 detects dense smoke or changes in high temperature, it can quickly control the smoke control valve 5 to close, and then close the ventilation regulating pipe 1, so that dense smoke fire is not easy to enter the room, or it is quickly burned out in the room, and it is not easy to replenish oxygen from external ventilation, so the fire protection effect is good.

[0055] The first carbon dioxide monitor 7 and the second carbon dioxide monitor 8 are both carbon dioxide concentration monitoring sensors, which are stable and convenient to monitor. A temperature monitoring sensor 11 is provided on the outside of the concentration circulation tube 3, which can monitor the indoor temperature. When the indoor temperature is too low, the flue gas control valve 5 can be closed by the concentration controller 10 to prevent the loss of indoor temperature. When the indoor carbon dioxide concentration is too low, it can be supplemented by the carbon dioxide replenishment cylinder 9, which is convenient to use.

[0056] The bottom of the outdoor mounting plate 2 is provided with a sleeve mounting frame 21. The sleeve mounting frame 21 is convenient to be sleeved and fixed to the outside of the ventilation regulating pipe 1. When the outdoor mounting plate 2 is installed outside the greenhouse, it is convenient to fix the ventilation regulating pipe 1 and ensure stable load-bearing.

[0057] The ventilation regulating pipe 1 is provided with an insertion interface 33, which makes it easy for the concentration circulation pipe 3 to be inserted and fixed to the ventilation regulating pipe 1 through the insertion interface 33. It can be combined in a cross shape, and the ventilation operation is stable. Both sides of the concentration circulation pipe 3 are provided with bolting gaskets 34, so that the concentration circulation pipe 3 can be bolted and fixed to the outdoor mounting plate 2 by the bolting gaskets 34. The installation and fixing are convenient and the installation adaptability is good.

[0058] The device enables real-time monitoring of carbon dioxide concentration, achieving automated adjustment and control of carbon dioxide concentration, and has good smoke and fire prevention effects, improving the convenience and safety of ventilation.

[0059] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A greenhouse carbon dioxide release and concentration control device, comprising a ventilation regulating pipe (1), characterized in that: An outdoor mounting plate (2) is installed in the middle of the outer side of the ventilation regulating pipe (1); The ventilation regulating pipe (1) is connected to a concentration circulation pipe (3) at one end near the room. The other end of the ventilation regulating pipe (1) is provided with a dustproof grille (4) and a flue gas control valve (5). Ventilation fans (6) with opposite airflow directions are provided on both sides of the interior of the ventilation regulating pipe (1). A first carbon dioxide monitor (7) is provided at both ends of the interior of the ventilation regulating pipe (1). A second carbon dioxide monitor (8) is provided at both ends of the interior of the concentration circulation pipe (3). The outdoor mounting plate (2) is provided with a carbon dioxide replenishment cylinder (9) connected to the ventilation regulating pipe (1) on its outer side, and a concentration regulator (10) is provided on the outdoor mounting plate (2).

2. The greenhouse carbon dioxide release and concentration control device according to claim 1, characterized in that: The two ends of the ventilation regulating pipe (1) pass through the inside and outside of the greenhouse respectively. The ventilation regulating pipe (1) is inserted and fixed to the inside of the outdoor mounting plate (2). The output ends of the two first carbon dioxide monitors (7) and the second carbon dioxide monitor (8) are electrically connected to the input end of the concentration controller (10). The output end of the concentration controller (10) is electrically connected to the input end of the flue gas control valve (5), the ventilation fan (6) and the carbon dioxide replenishment cylinder (9) respectively. The concentration controller (10) is an automatic controller or a digital display controller.

3. The greenhouse carbon dioxide release and concentration control device according to claim 1, characterized in that: The concentration circulation pipe (3) is inserted and bolted to one end of the ventilation regulating pipe (1) located indoors. A ventilation opening (31) connected to the ventilation regulating pipe (1) is opened in the middle of the concentration circulation pipe (3). Both ends of the concentration circulation pipe (3) are equipped with circulating fans (32) blowing in the same direction. Two second carbon dioxide monitors (8) are located on the opposite side of the two circulating fans (32). The input end of the circulating fan (32) is electrically connected to the output end of the concentration controller (10).

4. The greenhouse carbon dioxide release and concentration control device according to claim 1, characterized in that: The dustproof grid plate (4) has a dustproof ventilation cotton plate (41) on its inner side. The dustproof ventilation cotton plate (41) is filled between the ventilation regulating pipe (1) and the dustproof grid plate (4). The dustproof grid plate (4) is sleeved and fixed at the port of the ventilation regulating pipe (1). The dustproof ventilation cotton plate (41) is made of meltblown nonwoven fabric.

5. The greenhouse carbon dioxide release and concentration control device according to claim 1, characterized in that: The smoke control valve (5) is equipped with a smoke monitoring alarm (51) on its inner side. The output end of the smoke monitoring alarm (51) is electrically connected to the input end of the smoke control valve (5). The smoke control valve (5) is a smoke exhaust fireproof valve and a normally open valve.

6. The greenhouse carbon dioxide release and concentration control device according to claim 1, characterized in that: The first carbon dioxide monitor (7) and the second carbon dioxide monitor (8) are both carbon dioxide concentration monitoring sensors. A temperature monitoring sensor (11) is provided on the outside of the concentration circulation tube (3). The output end of the temperature monitoring sensor (11) is electrically connected to the input end of the concentration controller (10).

7. The greenhouse carbon dioxide release and concentration control device according to claim 1, characterized in that: The bottom of the outdoor mounting plate (2) is provided with a sleeve mounting frame (21), which is sleeved and bolted to the outside of the ventilation regulating pipe (1). The outdoor mounting plate (2) is hung and fixed to the ventilation regulating pipe (1) by the sleeve mounting frame (21).

8. The greenhouse carbon dioxide release and concentration control device according to claim 1, characterized in that: The ventilation regulating pipe (1) has an insertion interface (33) on the side away from the dustproof grille (4). The concentration circulation pipe (3) is vertically inserted into the insertion interface (33). The concentration circulation pipe (3) and the outdoor mounting plate (2) are assembled in a cross shape. Both sides of the concentration circulation pipe (3) are provided with bolting gaskets (34). The bolting gaskets (34) are bolted and fixed to the top of the outdoor mounting plate (2). The concentration circulation pipe (3) is bolted and fixed to the outdoor mounting plate (2) by the bolting gaskets (34).

Images