KR20060030374A - Automatic ventilation and air conditioning system - Google Patents

Abstract

The present invention relates to an automatic ventilation and an air conditioning system, and more particularly, in an automatic ventilation and an air conditioning system provided with an intake means and an exhaust means for ventilation of a plurality of dong cultivators and each dong cultivator. An air discharge unit for detecting air, an aggregation unit where each air discharge unit is combined, a measurement unit for measuring CO ₂ concentration at the collection unit, and a control unit for controlling the intake means and the exhaust means according to the measured value of the measurement unit. It consists of an air sampling device and the air intake means that is isolated to the water spray chamber and the exhaust chamber to humidify the air flowing into the mushroom cultivation. The present invention can measure and control the CO ₂ concentration for several mushroom cultivation with one set of carbon dioxide gas sensor, and provides the effect of improving the precision and extending the life of the carbon dioxide gas sensor.

Air sampling equipment, air conditioning equipment, carbon dioxide gas sensor, sampling pump

Description

Automatic Ventilation and Air Conditioning System {AUTOMATIC VENTILATION AND AIR CONDITIONING SYSTEM}

1 is a block diagram of an automatic ventilation and air conditioning system according to the present invention,

2 is a block diagram of an air sampling apparatus according to the present invention;

3 is a structural diagram of an air conditioner according to the present invention;

4 is a control block diagram of an automatic ventilation and air conditioning system according to the present invention;

5 is a control flow chart of the automatic ventilation and air conditioning system according to the present invention.

Explanation of symbols on the main parts of the drawings

1,2: First and second mushroom growers 3,4: First and second intake fans

11, 12: first and second exhaust fan 20: air sampling device

21,22: 1st, 2nd sampling pump 23,24: discharge pipe

25,26: 1st filter 27,28: 2nd filter

29: collecting tube 30: heating means

31 case 32 carbon dioxide gas sensor

33: discharge pipe 40: air conditioner

41: air conditioning chamber 42: partition wall

43: watering chamber 44: exhaust chamber

The present invention relates to a grower's automatic ventilation and air conditioning system, and more particularly, to create a suitable environment for growing a specific plant (for example, mushrooms) in the grower as a carbon dioxide concentration (CO ₂ ) in the grower The present invention relates to a device that measures and automatically ventilates the air in a grower and at the same time satisfies the humidity of the air sucked into the grower under conditions suitable for growing mushrooms or crops.

In general, the mushroom cultivator's ventilation work is performed by repeating the start and stop of the ventilation fan in the mushroom cultivator at regular time intervals using a twin-time switch. In recent years, mushroom farms that incorporate new technologies have installed carbon dioxide gas sensors in the mushroom cultivation company, and by connecting a simple electronic relay to the output terminal of the sensor, using a device designed to operate or stop the ventilation fan according to the carbon dioxide concentration. It is controlling the ventilation of the mushroom cultivator.

In the related art, in order to increase the humidity of the air flowing into the mushroom cultivation company, a spray means is installed in the intake pipe to humidify the air.

However, the conventional mushroom cultivator automatic ventilation and air conditioning system as described above had the following problems.

First, the conventional ventilation system has a problem in that a number of carbon dioxide gas sensors corresponding to the same number of mushroom cultivators need to be installed in the mushroom cultivator directly.

Second, the mushroom cultivation company has a problem that the humidity is high due to humidification, water cycle, etc., and the life span of the carbon dioxide gas sensor is shortened due to the generation of mushroom spores (hole seeds) and the accuracy of the sensor is deteriorated.

Third, the humidifying means of the air introduced into the mushroom cultivator has a problem that the humidified air is sprayed directly into the mushroom cultivator so that the humidified air is introduced directly into the mushroom cultivator so that the humidification is not suitable for the mushroom cultivator.

The present invention has been made in view of the above-mentioned problems with the prior art, and has been created to solve the above problems.

First, while maintaining a carbon dioxide concentration suitable for the growth of mushrooms to reduce the number of carbon dioxide gas sensor required, and to provide a mushroom cultivator automatic ventilation and air conditioning system that can more accurately detect the carbon dioxide concentration.

Next, to improve the air conditioning apparatus to increase the humidity in the mushroom cultivator to provide an automatic ventilation and air conditioning system to provide a humidity suitable for the growth of mushrooms.

The above-described object of the present invention is a cultivator automatic ventilation and an air conditioning system provided with an intake means and an exhaust means for ventilating a plurality of cultivation companies and each cultivation company, the air discharge unit for detecting the air inside each copper cultivation company And an air sampling device including a collection unit in which each air discharge unit is combined, a measurement unit for measuring CO ₂ concentration in the collection unit, and a control unit controlling the intake means and the exhaust means according to the measured value of the measurement unit; It is achieved by including an air conditioner which is isolated to the water inlet means and the exhaust chamber to humidify the air flowing into the mushroom cultivation.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a block diagram of the automatic ventilation and air conditioning system according to the present invention, the present invention, as shown, one side of the two first, second mushroom cultivation (1, 2) intake pipe (5, 6, 7,8 and the exhaust pipes 13 and 14 communicate with each other, and the intake pipes 7 and 8 are provided with first and second intake fans 3 and 4 and intake filters 9 and 10, respectively. 14 are provided with first and second exhaust fans 11 and 12 and exhaust filters 15 and 16, respectively. In addition, an air conditioner 40 is installed on the intake pipe side to humidify the intake air, and one side adjacent to the intake pipes 7 and 8 and the exhaust pipes 13 and 14 to recover the exhaust heat of the exhaust pipes 13 and 14. Exhaust heat recovery devices (17, 18) are constructed.

On the other side of the two mushroom cultivators 1 and 2, an air sampling device 20 for measuring the carbon dioxide concentration is installed. The air sampling device 20 will be described in detail with reference to FIG. 2 (constitution diagram of the air sampling device according to the present invention) as the biggest feature of the present invention.

As shown, the air sampling device 20 is the first, the second sampling pump (21, 22) for discharging the air in each mushroom cultivator (1,2), the first, second mushroom cultivator (1,2) ) Are installed in the discharge pipes 23 and 24, respectively. Since the sampling pumps 21 and 22 are for detecting and measuring a small amount of air in the mushroom cultivation companies 1 and 2, a small capacity (for example, 30 to 100 W) may be used.

Then, each discharge pipe (23, 24) extends to a predetermined length through the mushroom cultivation yarns (1, 2), and then meet in the collection pipe 29 that is a single pipe. The collecting tube 29 is provided with a case 31 in which a carbon dioxide gas sensor 32 for measuring carbon dioxide gas is incorporated. One side of the case 31 is provided with a discharge pipe 33 so that the measured air is discharged to the outside.

In addition, each discharge pipe (23, 24) is provided with a filtration member for dust removal, such as spores, dust generated in the mushroom cultivation (1, 2). The filtration member is composed of primary filters 25 and 26 and secondary filters 27 and 28, and the primary filters 25 and 26 are preferably pre-filters composed of elements of the same material as Kashmiron cotton, and The difference filters 27 and 28 are preferably constituted by HEPA (High Efficiency Particulate Arrestor) filters. The HEPA filter removes 99.97% of particles larger than or equal to 0.3 micron (dust, bacteria, viruses ...), so that most of the spores of the mushrooms in the mushroom cultivation plant (1,2) can be removed.

In addition, an ultra low penetration absolut filter higher than the HEPA filter may be used for the secondary filters 27 and 28.

In addition, the collecting pipe 29 is provided with heating means 30 for lowering the relative humidity of the air entering the case 31. It is preferable to use an electric heating heater or a bulb generally used for this heating means, but any means capable of heating air may be used. The relative humidity decreases due to an increase in the amount of saturated steam due to an increase in the temperature of the air introduced into the case 31 by the heating means 30, so that the carbon dioxide gas sensor 32 can detect the air having a low humidity. The deterioration of the function of the carbon dioxide gas sensor 32 can be prevented.

Looking at the air flow path of the air sampling device 20 described above is as follows.

Sampling pumps (21, 22) → discharge pipes (23, 24) → filtration member → discharge pipes (23, 24) → collecting pipe (29) → heating means (30) → collecting pipe (29) → sensor case (31) → carbonic acid Gas sensor (32) → discharge pipe (33)

Next, the air conditioner 40 will be described with reference to FIG. 3 (structure diagram of the air conditioner according to the present invention).

The air conditioner 40 according to the present invention is characterized in that the partition 42 is provided in the air conditioning chamber 41 to sufficiently humidify the air flowing into the mushroom cultivation plants 1 and 2.

As shown, the air conditioner 40, the ground water is stored in the lower portion is in communication with the intake pipes (5, 6, 7, and 8). Inside the air conditioner 40, a partition wall 42 extending vertically from the top and extending to the groundwater is provided, and the partition wall 42 directly receives air from the intake port of the air conditioner 40 as an exhaust port. It is preferable to install as shown in Figure 3 so as not to go out.

The partition 42 separates the air conditioning chamber 40 into a watering chamber 43 and an exhaust chamber 44.

Then, a water pump 45 and a water pipe 46 for pumping the groundwater of the air conditioner 40 is provided, the end of the water pipe 46 branched to the manifold in the watering chamber 43, the ground water being pumped The spraying pipe 47 for atomizing and spraying is formed. This sprinkling pipe 47 is formed with a number of fine holes for atomization of groundwater.

Looking at the operation of the air conditioner 40 described above, the air flowing into the intake port is humidified by the atomized water droplets in the sprinkling chamber 43, the humidified air is passed through the passage under the partition wall 42 exhaust chamber ( 44, this air flows out to the intake pipes 5 and 6 again by the exhaust fans 49 and 50 provided on the exhaust port side. As such, the air conditioner 40 may sufficiently humidify the air by preventing the air introduced by the partition 42 from directly exiting the exhaust port.

This air conditioner is the same as the phenomenon of increasing the humidity of the air by raindrops on a rainy day, and implements the relative humidity conditions under the eaves on a rainy day. That is, during the day, the relative humidity of the outside air decreases, so that the relative humidity of the outside air that has passed through the air conditioner is greatly increased to maintain the relative humidity suitable for mushroom cultivation, and at night, the relative humidity of the outside air passes through the air conditioner due to the high relative humidity of the outside air. The relative humidity of an outside air is not so high.

Therefore, the external air passing through the air conditioner can be kept constant at a suitable humidity for mushroom cultivation regardless of the relative humidity of the external air.

So far we have looked at the configuration of the automatic ventilation and air conditioning system of two buildings, the present invention can be applied to the case of three or four buildings.

Next, the overall system, that is, how the air sampling device 20 and the intake and exhaust means work together will be described with reference to FIGS. 4 and 5.

4 is a control block diagram of an automatic ventilation and air conditioning system according to the present invention. As shown, the system includes a measuring unit 50 for measuring the concentration of CO ₂ and an output unit for displaying data sensed by a sensor. 70, an input unit 60 for generating a corresponding operation signal according to the input content and transmitting the same to the control unit, a load 90, a relay unit 80 for enclosing the load 90, and a measurement unit 50 ), The control unit 100 controls and manages the corresponding components according to the signals received from the input unit 60 and the output unit 70.

The measuring unit 50 includes a sensor capable of measuring the concentration of carbon dioxide, and the carbon dioxide sensor 32 outputs a concentration of 0 to 2000 ppm of carbon dioxide gas at a current of 4 to 20 mA and sends it to the controller 100. .

The output unit 70 receives the data sensed by the sensor from the control unit 100 and outputs the concentration of carbon dioxide in ppm.

As shown in FIG. 4, the input unit 60 includes manual and automatic operation input means 61 and 62, a reference CO ₂ concentration input means 63, a sampling time input means 64, and a sampling delay time input means 65. It is preferable that it consists of). The manual operation input means 61 is a mode for operating the air supply fan and the exhaust fan (hereinafter, referred to as the ventilation fan) without the air sampling device being operated. The automatic operation input means 62 is linked with the air sampling device for ventilation. This mode is to run the fan.

The reference CO ₂ concentration input means 63 is a means for the user to arbitrarily set the concentration of carbon dioxide gas (for example, 800 ppm) suitable for mushroom cultivation. The ventilation fan is operated by the controller 100 based on the set concentration.

Sampling time input means 64 is a means for inputting the CO ₂ concentration measurement time of each mushroom cultivator, it is preferable to be able to input up to several tens of minutes. For example, when the user inputs 5 minutes, the first sampling pump 21 and the second sampling pump 22 alternately operate for 5 minutes by a timer and sample air.

Sampling delay time input means (65) is a means for inputting the carbon dioxide concentration value measured during the movement from the grower to the sensor so as not to affect the operation of the ventilation fan, or when using a large capacity of the sampling pump Is a few seconds or less, so the sampling delay time input means 65 may not be provided.

The load 90 controlled by the controller 100 includes the first and second ventilation fans and the first and second sampling pumps described above, and the miniature electronic relay is provided in the relay unit 80 that opens and closes the load 90. Is used, but in the case of the ventilation fan is large, it is preferable to use a magnetic contactor (Magnetic Contactor, MC).

The controller 100 includes a PLC controller to control the carbon dioxide concentration.

In the above, the control configuration of the automatic ventilation and air conditioning system according to the present invention has been described, and the actual operation of the system will be described with reference to FIG. 5 (control flow diagram of the automatic ventilation and air conditioning system according to the present invention).

When the power is turned on, the PLC checks whether the control state of the first mushroom cultivator 1 is an automatic mode or a manual mode (S1). In the manual mode, the PLC operates the MC to operate the first ventilation fans 3 and 11 (S2), and the first ventilation fans 3 and 11 perform the ventilation operation regardless of the air sampling device 20. Continue.

In the automatic mode, the PLC operates the relay to operate the first sampling pump 21 (S3). The air of the first mushroom cultivator 1 is transferred to the carbon dioxide gas measuring unit by the first sampling pump 21. While moving, the carbon dioxide gas sensor 32 measures the CO ₂ concentration of the air of the first mushroom cultivator 1. (S4) When the CO ₂ concentration becomes higher than the reference concentration, the PLC operates the first ventilation fans 3 and 11. (S4) When the CO ₂ concentration is lower than the reference concentration due to the operation of the first ventilation fans 3 and 11, the PLC stops the operation of the first ventilation fans 3 and 11 (S4). Lasts for the sampling time.

When the sampling time has elapsed, the first sampling pump 21 is stopped (S5, S6). If the CO ₂ concentration is higher than the reference concentration before the sampling time elapses, the first ventilation fan (3, 11) continues even after the sampling time is over. After the sampling time of the second mushroom cultivator 2 is finished, but the CO ₂ concentration is less than the reference concentration at the sampling time of the first mushroom cultivator 1, the operation of the first ventilation fans 3 and 11 is stopped. It stops.

As such, when the sampling time of the first mushroom cultivator 1 elapses, the PLC determines whether the control mode of the second mushroom cultivator 2 is automatic or manual (S7), and if it is manual, operates the second ventilation fans 4 and 12. (S8), if it is automatic, the second sampling pump 22 is operated. (S9) During the subsequent sampling time, CO ₂ measurement and ventilation work is the same as the first mushroom cultivator 1 as shown in FIG. (S10, S11)

When the sampling time of the second mushroom cultivator 2 has elapsed, the operation of the second sampling pump 22 is stopped (S12), and the first sampling pump 21 of the first mushroom cultivator 1 is operated again to thereby operate the first mushroom pump. Air sampling of the mushroom cultivator 1 is started. This operation is repeated to ventilate the plant.

In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains can vary without departing from the spirit of the technical idea of the present invention described in the claims below. It will be possible to carry out the change.

As described in detail above, the present invention reduces the purchase cost of the sensor by measuring and controlling the CO ₂ concentration in the cultivation of a plurality of dongs with one set of carbon dioxide gas sensor, and by dehumidifying and damping air before measuring carbon dioxide gas, the accuracy of the sensor Improve the lifespan and provide the effect of prolonging the service life.

In addition, by installing an improved air conditioner on the intake side that flows into the cultivator, it is possible to maintain a constant humidity suitable for mushroom cultivation regardless of the humidity of the outside air, thereby promoting mushroom growth to increase mushroom productivity. It also provides a boosting effect.

Claims (5)

In the automatic ventilation and air conditioning system provided with intake means and exhaust means for ventilation of the cultivation company of multiple dong and each cultivation company, An air discharge part provided with a pump and a discharge pipe for discharging air inside the cultivation company of each square; An aggregate tube in which the respective discharge tubes are combined to extend; A carbon dioxide gas measuring unit including a carbon dioxide gas sensor installed in the collection pipe; Automatic ventilation and air comprising a air sampling device consisting of; the carbon dioxide concentration control unit for interlocking the intake means and exhaust means of the mushroom cultivator in accordance with the periodic operation of each pump and the measured value of the carbon dioxide gas sensor Harmony system. The method of claim 1, The collection tube further comprises a heating means for automatic ventilation and air conditioning system. The method of claim 1, Automatic discharge and air conditioning system, characterized in that the discharge pipe further comprises a filtration member. The method of claim 1, An air conditioning chamber in which the water intake means of the cultivator stores ground water at a lower portion of the cultivator and separates the inside into a spraying chamber and an exhaust chamber so that the humidified air from the spraying chamber is discharged to the other side through the exhaust chamber; A groundwater supply unit for providing a water pump for pumping the groundwater, a water pipe for transporting the groundwater through the water pump, and a sprinkling pipe so that the pumped ground water extended with the water pipe is sprayed into the water spray chamber; And an air conditioning apparatus having an exhaust fan for discharging the air introduced into the exhaust chamber. The method of claim 4, wherein The air conditioning chamber is provided with a vertically extending partition wall so as to approach from the inner upper portion to the ground water surface, the automatic ventilation and air conditioning system, characterized in that separated into the spray room and exhaust chamber.

Images