KR101982817B1 - System for controlling the environment of constant temperature and humidity type closed factory for growing plants and control method of the same - Google Patents

Abstract

According to the present invention, an environment control facility for a closing type plant factory can save energy while maintaining an optimal environment for plant production for manufacturing a medicine through the introduction of an appropriate external air, and can provide plants and an operator with a pleasant environment in a daytime mode. In addition, the introduction of external air is controlled in consideration of the concentration of CO_2 in the daytime mode in which the plant has photosynthesis, and cooling is performed using the external air due to non-CO_2 effect in a nighttime mode, thereby saving energy. Furthermore, when the indoor concentration of CO_2 is in the range between upper and lower limits, the introduction of the external air is controlled by the enthalpy difference of indoor and outdoor air, thereby introducing proper external air and saving energy through the cooling using the external air.

Description

Technical Field [0001] The present invention relates to an environment control system for a sealed plant plant of a packaged type thermo-hygrostat method and a control method thereof,

The present invention relates to an environmental control system and a control method for a closed-type thermo-hygrostat method closed-type plant factory, more particularly, to provide an optimal indoor environment by considering plants and workers for manufacturing pharmaceuticals in a closed- And more particularly, to an environmental control system and a control method for a sealed plant plant of package type constant temperature and humidity system.

In order to produce plants for the production of pharmaceuticals, the cultivation environment is artificially controlled, and a closed plant plant method is used to prevent external infections caused by bacteria, viruses, fungi, or the like, and is also referred to as a bio-clean room.

It is very important to maintain the indoor environment at preset conditions since the closed plant is mainly a factory for producing plants for producing pharmaceuticals.

However, the enclosed plant plant has a problem that the working environment of the operator is poor when the plant cultivation condition alone is taken into consideration, thereby lowering the working efficiency.

In addition, since the closed plant plant uses artificial light instead of solar light, the internal heat load due to the artificial light is very large, so that the cooling load is very large and energy consumption is very large.

Korean Patent Publication No. 10-2018-0089601

An object of the present invention is to provide an environmental control system and a control method thereof for a sealed plant plant of packaged type thermostat and hygrostat method which can provide an optimal indoor environment considering both plants for plant production and workers.

The environmental control system of the sealed type plant-based constant temperature and humidity-controlled plant plant according to the present invention is a closed plant plant having a plurality of tray members accommodating plants for producing pharmaceuticals and equipped with artificial light for providing light energy to the plants, A thermostatic hygrostat provided in a room of the closed plant plant for supplying air to a room at a preset temperature and a preset humidity; A CO ₂ supply device for supplying CO ₂ to the room; An outside air damper for adjusting a flow rate of outside air flowing into the room; An exhaust damper for adjusting a flow rate of indoor air discharged from the room; An air supply fan for blowing outside air introduced into the outside air damper; An exhaust fan for blowing indoor air discharged through the exhaust damper; An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform; The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere; An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air; A human body detecting sensor for detecting a human body in the room; When the human body is sensed by the human body sensor and the CO ₂ concentration measured by the indoor CO ₂ sensor is equal to or higher than a preset upper limit value in the daytime mode in which the artificial light is illuminated and the plant performs the photosynthesis, And a control unit for performing an outside air introduction control mode in which the outside air introduction rate is set differently according to a difference in the temperature of the outside air and ventilation is performed.

According to another aspect of the present invention, there is provided an environmental control system for a packaged thermostatic / hygroscopic type closed plant, comprising: a closed plant plant having a plurality of tray members accommodating plants for producing pharmaceuticals and having artificial lighting for providing light energy to the plants; A thermostatic hygrostat provided in a room of the closed plant plant for supplying air of a preset temperature and a preset humidity into the room; A CO ₂ supply device for supplying CO ₂ to the room; An outside air damper for adjusting a flow rate of outside air flowing into the room; An exhaust damper for adjusting a flow rate of indoor air discharged from the room; An air supply fan for blowing outside air introduced into the outside air damper; An exhaust fan for blowing indoor air discharged through the exhaust damper; An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform; The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere; An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air; A human body detecting sensor for detecting a human body in the room; An enthalpy control mode in which the enthalpy of the indoor air is compared with the enthalpy of the outdoor air to introduce outdoor air when the artificial light is turned off and the plant breathes; And a control unit for determining whether any one of the plurality of communication apparatuses is set.

According to another aspect of the present invention, there is provided an environmental control system for a packaged thermostatic / hygroscopic type closed plant, comprising: a closed plant plant having a plurality of tray members accommodating plants for producing pharmaceuticals and having artificial lighting for providing light energy to the plants; A thermostatic hygrostat provided in a room of the closed plant plant for supplying air of a preset temperature and a preset humidity into the room; A CO ₂ supply device for supplying CO ₂ to the room; An outside air damper for adjusting a flow rate of outside air flowing into the room; An exhaust damper for adjusting a flow rate of indoor air discharged from the room; An air supply fan for blowing outside air introduced into the outside air damper; An exhaust fan for blowing indoor air discharged through the exhaust damper; An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform; The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere; An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air; A human body detecting sensor for detecting a human body in the room; And a controller for controlling the ventilation of the closed plant by reflecting whether the artificial illumination is on or off, and whether the human body is detected by the human body detection sensor.

According to another aspect of the present invention, there is provided an environmental control system for a packaged thermostatic / hygroscopic type closed plant, comprising: a closed plant plant having a plurality of tray members accommodating plants for producing pharmaceuticals and having artificial lighting for providing light energy to the plants; A thermostatic hygrostat provided in a room of the closed plant plant for supplying air of a preset temperature and a preset humidity into the room; A CO ₂ supply device for supplying CO ₂ to the room; An outside air damper for adjusting a flow rate of outside air flowing into the room; An exhaust damper for adjusting a flow rate of indoor air discharged from the room; An air supply fan for blowing outside air introduced into the outside air damper; An exhaust fan for blowing indoor air discharged through the exhaust damper; An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform; The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere; An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air; A human body detecting sensor for detecting a human body in the room; And a control unit for controlling ventilation of the closed plant by reflecting whether the artificial light is on or off, whether a human body is detected by the human body sensor, and CO ₂ concentration measured by the indoor CO ₂ sensor.

According to another aspect of the present invention, there is provided an environmental control system for a packaged thermostatic / hygroscopic type closed plant, comprising: a closed plant plant having a plurality of tray members accommodating plants for producing pharmaceuticals and having artificial lighting for providing light energy to the plants; A thermostatic hygrostat provided in a room of the closed plant plant for supplying air of a preset temperature and a preset humidity into the room; A CO ₂ supply device for supplying CO ₂ to the room; An outside air damper for adjusting a flow rate of outside air flowing into the room; An exhaust damper for adjusting a flow rate of indoor air discharged from the room; An air supply fan for blowing outside air introduced into the outside air damper; An exhaust fan for blowing indoor air discharged through the exhaust damper; An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform; The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere; An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air; A human body detecting sensor for detecting a human body in the room; And a control unit for controlling the ventilation of the closed plant by reflecting whether the artificial lighting is on or off, whether a human body is detected by the human body sensor, enthalpy of the indoor air, and enthalpy of the outside air.

A closed plant plant for cultivating a plant for producing pharmaceuticals according to the present invention is a closed plant plant for cultivating a plant for producing pharmaceuticals, which comprises a thermostatic hygrostat which is installed in a room and supplies air of a preset humidity and a preset humidity, A CO ₂ supply device for supplying CO ₂ to the room, an outside air damper for controlling a flow rate of the outside air flowing into the room, an exhaust damper for controlling a flow rate of indoor air discharged from the room, An exhaust fan for blowing room air exhausted through the exhaust damper, and a manned fan provided on a ceiling of the room for circulating air supplied through the thermo-hygrostat The temperature of the room air and the relative humidity are measured at intervals of a predetermined time, A temperature / humidity measuring step of measuring the temperature and the relative humidity of the outdoor air of the closed plant at a predetermined time interval; A day and night setting step of setting any one of a daytime mode in which the artificial light provided in the closed plant plant is lighted by the control unit to perform the photosynthesis of the plant and a nighttime mode in which the artificial light is turned off and the plant is only respiratory; ; A human body sensing step of determining whether the human body detection sensor detects a human body in the room if the daytime mode is set in the day and night setting step; When the human body is detected on the human body detection step, CO ₂ sensor is CO ₂ concentration measurement step of measuring a predetermined time interval the CO ₂ concentration of the interior and; If the CO ₂ concentration of the CO ₂ concentration in the room measured at the measuring step the preset upper limit value or more, the outdoor air introduced to the control ventilated to different settings for the outside air introduction rate according to the difference in temperature and the temperature of the ambient air of the room air Performing a control mode; If the CO ₂ is less than the said upper limit CO ₂ concentration in the room measured by the concentration measurement step is a pre-set lower limit value or more, enthalpy control mode for introducing outside air as compared to the enthalpy and enthalpy of the outside air of the room air and the outside air An indoor circulation mode for circulating the indoor air without introduction of the indoor air circulation mode; And calculating enthalpy of the indoor air and enthalpy of the outdoor air based on enthalpy of the indoor air, enthalpy of the outdoor air, temperature of the outdoor air, temperature of the outdoor air, Determining whether the outside air introduction control mode is performed according to the relative humidity; If the night mode is set in the day and night setting step, the control unit checks whether the enthalpy control mode or the indoor circulation mode is set.

The environmental control facility of the closed plant plant according to the present invention can save energy while maintaining the optimum environment for the production of the plant for manufacturing pharmaceuticals through the introduction of the appropriate outside air and provides a comfortable environment for the plant as well as the operator in the daytime mode There is an advantage to be able to do.

Further, by cooling to the plant, consider the CO ₂ concentration at the time of day mode of photosynthesis control the outside air introduction, and when the night mode that only the respiration plants since there is no CO ₂ effect by using the outside air, can be energy saving Do.

Further, when the CO ₂ concentration in the room falls within the range between the upper limit value and the lower limit value, introduction of the outside air is controlled by the enthalpy difference of the outside air, so that it is possible to introduce appropriate outside air, Can be saved.

FIG. 1 is a view showing an environmental control system of a closed-type plant of an air conditioner system according to a first embodiment of the present invention.
2 is a block diagram showing the configuration of the environmental control system of the closed plant factory shown in Fig.
FIG. 3 is a view showing an environmental control system of a closed type plant-type thermostatic / hygroscopic closed plant according to a second embodiment of the present invention.
4 is a block diagram showing the configuration of the environmental control system of the closed plant factory shown in Fig.
5A, 5B, and 5C are flowcharts illustrating an environmental control method of a closed plant plant according to an embodiment of the present invention.

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

The closed plant plant according to the embodiment of the present invention is a plant for growing a plant for producing pharmaceuticals (hereinafter referred to as "plant"). The closed plant plant is controlled to an optimal environment for cultivating the plant and is sealed to prevent infestation by external infections or insects. Since the closed plant plant controls the environment for the plants, the temperature is controlled at about 25 DEG C, the humidity is controlled at 40 to 80%, the CO ₂ concentration is controlled at 800 to 1500 ppm, Environmental control is also different.

The indoor R of the closed plant plant is provided with artificial light (not shown) for providing light energy to the plant to allow the plant to perform photosynthesis. The artificial light (not shown) must provide a very high illumination density since it must provide the photosynthetic energy necessary for the growth of the plant. The artificial light may have an illumination density of about 200 W / m < ² >. Therefore, it is necessary to control the indoor temperature and humidity by using the air conditioner system or the packaged type constant temperature and humidity system, because the internal plant heating load is large due to the artificial lighting and the cooling load due to the internal heating load is also very large. Do.

A plurality of tray members, in which the plants P are accommodated, are stacked on the indoor R of the closed plant.

The plant includes plants for hydroponics such as bentamiana. The plant is used to infiltrate plant tissue with Agrobacterium transformed with a gene encoding a protein to induce transient expression of the exogenous protein in the plant. The closed plant plant may also be provided with a device for injecting infiltration solution into the tissue of the plant.

FIG. 1 is a view showing an environmental control system of a closed-type plant of an air conditioner system according to a first embodiment of the present invention. 2 is a block diagram showing the configuration of the environmental control system of the closed plant factory shown in Fig.

1 and 2, the environmental control system of the closed plant plant is an air conditioner system.

The air conditioner system is a system in which outside air is introduced and the outside air is cooled, heated, humidified or dehumidified, and then supplied to the room.

The environment control system of the air conditioner-type closed plant plant includes an air supply duct 10, an outside air damper 11, an air supply fan 12, an exhaust duct 20, an exhaust damper 21, an exhaust fan 22, The circulation air damper 31, the CO ₂ supply unit 40, the humidifying coil 42, the cold / hot water coil 44, the reheat coil 46, the HEPA filter 48, the outside air sensor unit 50, An indoor sensor unit 60, a human body sensor 70, and a controller 80.

The air supply duct (10) is a flow path for supplying mixed air in which ambient air or outdoor air and circulating air are mixed to the room (R).

The outside air damper 11 is installed at one side of the air supply duct 10 and controls a flow rate of the outside air flowing into the air supply duct 10.

The air supply fan 12 is provided inside the air supply duct 10 and blows air supplied to the indoor R.

The exhaust duct 20 is a flow path for discharging air from the room R.

The exhaust damper 21 is installed at one side of the exhaust duct 20 and adjusts the flow rate of the indoor air discharged from the exhaust duct 20.

The exhaust fan 22 is provided inside the exhaust duct 20 and blows air discharged from the indoor R.

The connecting duct 30 connects the air supply duct 10 and the air exhaust duct 20 to circulate a part of room air discharged through the air exhaust duct 20 to the air supply duct 10, to be.

The circulating air damper 31 is provided inside the connecting duct 30 and controls the flow rate of the circulating air circulated to the room after being discharged from the room R.

The CO ₂ supply device 40 is installed inside the air supply duct 10 and supplies CO ₂ to the air introduced into the room. Since the plant requires CO ₂ when it performs photosynthesis, CO ₂ can be supplied as needed.

The humidifying coil 42 is installed in the air supply duct 10 to humidify the air flowing into the room. The humidifying coil 42 is provided between the cold / hot water coil 44 and the CO ₂ supply device 40.

The cold / hot water coil 44 is installed inside the air supply duct 10 to heat or cool the air flowing into the room.

The reheat coil 46 is installed on the flow path connecting the air supply duct 10 and the room R and reheats the air that is subcooled in the air supply duct 10 during the cooling and dehumidifying process.

The HEPA filter 48 is installed on a flow path connecting the air supply duct 10 and the room R to filter the air supplied to the room R. [

The outside air sensor unit 50 includes an outside air temperature sensor 51 installed in the air supply duct 10 to measure a temperature of the outside air, an outside air humidity sensor 52 for measuring a relative humidity of the outside air, And an outside air CO ₂ sensor 53 for measuring the CO ₂ concentration of the outside air.

The indoor sensor unit 60 includes an indoor temperature sensor 61 installed in the exhaust duct 20 and measuring the temperature of the indoor air discharged from the indoor R, And an indoor CO ₂ sensor 63 for measuring the CO ₂ concentration of the indoor air.

The human body detection sensor 70 is installed in the room R and detects a human body existing in the room R. [ In general, the environment of the room R is controlled by taking into consideration only the plant, and the environment for the human body at the time of entering and exiting the person such as the worker must be considered. The environment of the room R may change due to the human body The human body detection sensor 70 for detecting the human body should be provided.

A mixed air temperature sensor 72 for measuring the temperature of the mixed air in which the room air and the outside air are mixed is installed at a position where the indoor air and the outside air are mixed through the connecting duct 30 in the air supply duct 10, Can be installed.

The control unit 80 determines whether or not the artificial illumination (not shown) is turned on, the human body sensor 70, the indoor CO ₂ sensor 63, the indoor temperature sensor 61, the indoor humidity sensor 62, The outside air damper 11, and the exhaust damper 11 according to the detection signals of the outside air temperature sensor 51, the outside air humidity sensor 52, the outside air CO ₂ sensor 53 and the mixed air temperature sensor 72, 21 and the circulating air damper 31 to control the indoor environment in any one of the outdoor air introduction control mode, the enthalpy control mode, and the indoor circulation mode.

FIG. 3 is a view showing an environmental control system of a closed type plant-type thermostatic / hygroscopic closed plant according to a second embodiment of the present invention. 4 is a block diagram showing the configuration of the environmental control system of the closed plant factory shown in Fig.

3 and 4, the environmental control system of the closed plant factory according to the second embodiment of the present invention is different from that of the first embodiment in that it is a package type constant temperature and humidity system.

The package type constant temperature and humidity system is a system in which a thermo-hygrostat 100 is installed in an indoor room R of the closed plant plant, and the thermo-hygrostat 100 supplies air having a preset humidity and a preset humidity . Therefore, in the thermo-hygrostat method, the humidifying coil or the reheat coil necessary for the air conditioner system is not separately provided on the outside air introduction flow path.

The environmental control system of the closed plant plant includes the thermo-hygrostat 100, the outside air damper 110, the air supply fan 112, the exhaust damper 120, the exhaust fan 122, the CO ₂ supply device 140, A filter 148, an outside air sensor unit 150, an indoor sensor unit 160, a human body sensor 170, and a controller 180.

The outside-air damper 110 is installed on a flow path for supplying outside air to the room R to regulate inflow flow rate of the outside air.

The air supply fan 112 is a fan for blowing air supplied to the indoor R.

The exhaust damper 120 is installed on a flow path for discharging indoor air from the room R, and controls the flow rate of indoor air to be discharged.

The exhaust fan 122 is a fan for blowing air discharged from the room R.

The CO ₂ supplying device 140 is a device for directly supplying CO ₂ to the room. Since the plant requires CO ₂ when it performs photosynthesis, CO ₂ can be supplied as needed.

The HEPA filter 148 is installed on a flow path for supplying outside air to the room R, and filters the air supplied to the room R. Therefore, it is possible to prevent an external infection or an infestation of a pest.

The outside air sensor unit 150 is installed on a flow path for supplying outside or outside air of the closed plant to the room R. [ And the outside-air sensor 150, and the outdoor air temperature sensor 151 for measuring the temperature of the outside air, the outside air humidity sensor 152 for measuring the relative humidity of the outside air, the outside air to measure the CO ₂ concentration in the atmosphere And a CO ₂ sensor 153.

The indoor sensor unit 160 is installed on a flow path for discharging indoor air from the indoor R or the indoor R. [ The indoor sensor unit 160 includes an indoor temperature sensor 161 for measuring the temperature of indoor air discharged from the indoor R, an indoor humidity sensor 162 for measuring the relative humidity of the indoor air, And an indoor CO ₂ sensor 163 for measuring the CO ₂ concentration of the indoor air.

The human body detection sensor 170 is installed in the room R and detects a human body existing in the room R. [ In general, the environment of the room R is controlled by taking into consideration only the plant, and the environment for the human body at the time of entering and exiting the person such as the worker must be considered. The environment of the room R may change due to the human body The human body detecting sensor 170 for detecting the human body should be provided.

The control unit 180 determines whether or not the artificial lighting (not shown) is turned on, the human body sensor 170, the indoor CO ₂ sensor 163, the indoor temperature sensor 161, the indoor humidity sensor 162, Ambient air introduction control mode, enthalpy control mode, indoor circulation mode, and outdoor air temperature control mode according to the detection signals of the outdoor air temperature sensor 151, the outdoor air humidity sensor 152, the outdoor air CO ₂ sensor 153, Mode to control the indoor environment.

5A, 5B, and 5C are flowcharts illustrating an environmental control method of a closed plant plant according to an embodiment of the present invention.

5A to 5C, an environmental control method of a closed plant plant according to an embodiment of the present invention will be described.

The environmental control system of the closed plant factory has been described by dividing it into an air conditioner system and a packaged thermo-hygrostat system, but the control method will be described collectively.

When the closed plant plant is operated, the room R is maintained at a predetermined temperature and a preset humidity.

When the operation and environment control of the closed plant are started, the temperature of the room air, the relative humidity of the room air, the temperature of the outdoor air and the relative humidity of the outdoor air are measured at regular intervals (S1)

Also, the control unit performs the day / night setting step of setting the main / night mode. (S2)

In the daytime mode, the artificial light is turned on to perform photosynthesis of the plant. In the night mode, the artificial light is turned off, and only the breathing action of the plant is performed. Since the closed plant plant is a place where environmental control is performed in consideration of plants, the activity of the plant is changed depending on whether the plant is in the daytime mode or the nighttime mode. In addition, since the photosynthesis must be performed in the daytime mode, the CO ₂ concentration is more important than in the nighttime mode. In addition, since the plant breathing is performed in the night mode, even if the outdoor air is supplied immediately, the CO ₂ concentration required for plant growth is not affected, so that the energy can be saved by cooling by using the outside air. Therefore, environmental control changes depending on the daytime mode and the nighttime mode.

In the day or night setting step (S2), is set to the night mode, the night operation is not important that the CO ₂ concentration is not measured CO ₂ concentration. In the night mode, the controller may determine whether the enthalpy control mode described below is set, and perform the introduction of ambient air according to the set enthalpy control mode.

When the day mode is set in the day and night setting step S2, the controller performs a human body detection step of determining whether a human body is sensed in the room (S3)

In the daytime mode, a worker can work in and out of the room R, so that when the concentration of CO _{2 in} the room R is too high, there may be a problem in respiration of the worker, It may affect the CO ₂ concentration of the (R). That is, the CO ₂ concentration in the room R should be controlled not to exceed 1000 ppm during the daytime mode. Therefore, in the daytime mode, a human body detection step is performed to detect the presence or absence of an operator.

When the human body is detected on the human body detection step (S3), and performs a _two-stage CO concentration measurement for measuring the CO ₂ concentration of the interior at a predetermined time interval. (S4)

And comparing the CO ₂ concentration in the room measured by the CO ₂ concentration measurement step (S4) with a preset upper limit value. (S5)

If the CO ₂ concentration in the room is equal to or greater than a preset upper limit value, the controller performs an outside air introduction control mode (S100) in which the outdoor air introduction rate is set differently according to the difference between the indoor air temperature and the outdoor air temperature. The outside air introduction control mode (S100) will be described later in detail.

If the CO ₂ concentration in the room measured by the CO ₂ concentration measurement step (S4) is lower than the above upper limit value, comparing the CO ₂ concentration of the room and the preset lower limit value. (S6)

If the CO ₂ concentration in the room is less than the lower limit value, it is determined that the CO ₂ concentration in the room is not high and it can be judged that the work environment of the worker is not affected. Therefore, if the CO ₂ concentration in the room is less than the lower limit value, the CO ₂ concentration is continuously measured and the condition is confirmed.

If the CO ₂ concentration in the room is equal to or greater than the lower limit value, an enthalpy control mode for introducing outside air by comparing the enthalpy of the room air with the enthalpy of the outside air and an indoor circulation mode for circulating indoor air without introducing outside air An enthalpy control mode confirmation step of confirming which one is set is performed. (S7)

If the human body is not detected in the human body sensing step S3, the controller compares the CO ₂ concentration in the room with a preset lower limit value.

If the CO ₂ concentration in the room is equal to or lower than the lower limit value, the enthalpy control mode confirmation step is performed. (S7)

If it is determined that the enthalpy control mode is set in the enthalpy control mode checking step S7, the enthalpy of the room air and the enthalpy of the outside air are calculated.

The method of calculating the enthalpy is expressed by Equation (1).

In Equation 1, T = temperature, c is _a specific heat (1,005J / kg · K, 0.240kcal / kg · ℃) of air, _v c is a specific heat of steam (1,846J / kg · K, 0.441kcal / kg · ° C), r ₀ represents the latent heat of evaporation at 0 ° C (2,501 ㅧ 103J / kg, 597.5kcal / kg).

The method of calculating the absolute humidity (x) is shown in Equation (2).

Where P is atmospheric pressure and Pw is water vapor partial pressure.

The atmospheric pressure P is calculated by Equation (3), and the steam partial pressure Pw is calculated by Equation (4).

Where P ₀ is the atmospheric pressure (= 101.325 kPa (760 mmHg)), Z is the elevation (m), and T _0ab is 288.15 K (= 15 + 273.15)

Where T _0ab is the atmospheric pressure at sea level in the standard atmosphere.

Here, RH is the relative humidity (%), P _ws is the saturated water vapor pressure (kPa), and is calculated by Equation (5).

Where T _ab [k] = T + 273.15.

If the enthalpy of the indoor air and the enthalpy of the outdoor air are respectively obtained by the above Equation 1, the difference between the enthalpy of the indoor air and the enthalpy of the outdoor air is calculated. The difference between the enthalpy of the room air and the enthalpy of the outside air can be called an enthalpy energy.

The enthalpy of the room air is compared with the enthalpy of the outside air. (S9)

If the enthalpy of the outside air exceeds the enthalpy of the room air, the process returns to step (S1) of measuring the temperature and humidity so as not to introduce outside air.

If the enthalpy of the outside air is equal to or lower than the enthalpy of the room air, the temperature of the outside air is compared with a preset room temperature.

 If the temperature of the outside air exceeds the indoor set temperature, the process returns to step S1 in which the temperature and humidity are measured so as not to introduce outside air.

 If the temperature of the outside air is below the room set temperature, it is determined whether the relative humidity of the outside air is within a predetermined set humidity range. (S11)

If the relative humidity of the outside air is out of the set humidity range, the process returns to step S1 in which the temperature and humidity are measured so as not to introduce outside air.

And performs the outside air introduction control mode (S100) when the relative humidity of the outside air is within the set humidity range.

When the room temperature of the closed plant plant is maintained at a constant temperature and humidity condition, the latent heat load for humidifying or dehumidifying at the time of introducing the outside air may become large and the economical efficiency may deteriorate. Therefore, when the relative humidity of the outside air is within the set humidity range, do.

Referring to FIG. 5B, the outside air introduction control mode (S100) will be described.

In the outside air introduction control mode (S100), the difference between the temperature of the room air and the temperature of the outside air is calculated (S101)

In order to prevent the plants from being stressed by the temperature change due to the introduction of the outside air during the introduction of the outside air, the supply amount of the outside air is controlled differently according to the difference between the temperature of the room air and the temperature of the outside air.

Wherein when the environmental control system is the air conditioner system, the supply amount of the outside air is adjusted by controlling the opening degree of the outside air damper and the exhaust damper, It can be controlled via numerical control or pole change.

Therefore, it is determined whether the environment control system is the air conditioner system or the package type constant temperature / humidity unit (S 102)

In the case of the outdoor air introduction control mode and the air conditioner system, the control method is as follows.

If the difference between the temperature of the room air and the temperature of the outside air is less than a preset minimum value, the exhaust damper, the outside air damper, and the circulating air damper are opened at a predetermined maximum opening degree.

Here, the minimum value is 5 ° C and the maximum opening degree is 100%, for example.

When the difference between the temperature of the room air and the temperature of the outside air exceeds the minimum value and is equal to or less than a preset maximum value, the temperature of the room air and the temperature of the outside air are controlled by the exhaust damper, (S105) (S106). [0050]

Here, the maximum value is 10 [deg.] C, for example.

When the difference between the temperature of the room air and the temperature of the outside air exceeds the maximum value, the exhaust damper, the outside air damper, and the circulating air damper are opened at a predetermined minimum opening degree (S107) (S108)

Here, the minimum opening degree is set in advance.

On the other hand, in the case of the package type constant temperature / humidity control system, the control method is as follows.

The exhaust damper and the outside-air damper are opened at a predetermined maximum opening degree. (S111)

Here, the maximum opening degree is 100% opening degree, for example.

If the difference between the temperature of the indoor air and the temperature of the outside air is less than a predetermined minimum value, the operation of the air supply fan and the exhaust fan is controlled at a preset maximum operation rate (S112) (S113)

Here, the minimum value is 5 DEG C and the maximum operation rate is 100%, for example.

When the difference between the temperature of the room air and the temperature of the outside air exceeds the minimum value and is equal to or less than a preset maximum value, the operation of the air supply fan and the exhaust fan is controlled with the operating ratio set to be proportional to the temperature difference (S114) (S115)

Here, the maximum value is 10 [deg.] C, for example.

When the difference between the temperature of the indoor air and the temperature of the outside air exceeds the maximum value, the operation of the air supply fan and the exhaust fan is controlled at a predetermined minimum operation rate (S116) (S117)

Here, the minimum drive ratio is set in advance.

Meanwhile, if it is determined that the enthalpy control mode is not set and the indoor circulation mode (S200) is set in the enthalpy control mode checking step (S8), the indoor circulation mode (S200) in which no outside air is introduced is performed.

Referring to FIG. 5C, it is determined whether the air conditioner type or the packaged type constant temperature and humidity air conditioner is used in the indoor circulation mode S200 (S201)

In the air conditioner system, the exhaust damper, the outside air damper, and the circulating air damper are all closed (S202)

In the case of the thermo-hygrostat system, both the exhaust damper and the outside air damper are closed, and both the air supply fan and the exhaust fan are stopped (S203) (S204)

As described above, when the CO ₂ concentration in the room falls within the range between the upper limit value and the lower limit value, introduction of the outside air is controlled by the enthalpy difference of the outside air, so that appropriate outside air can be introduced, Energy can be saved.

In addition, outdoor air introduction can be performed more efficiently by controlling the outdoor air introduction control differently in the daytime mode in which the plant performs the photosynthesis action and in the nighttime mode in which the plant only performs the breathing action.

Further, in the daytime mode, the indoor environment can be controlled to the optimum environment by considering the operator with the plant.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Supply duct 11: Ambient air damper
20: exhaust duct 21: exhaust damper
30: connecting duct 31: circulating air damper
40: CO ₂ supply device 42: humidifying coil
44: cold / hot water coil 46: reheat coil
48: HEPA filter 50: Outdoor sensor part
60: Indoor sensor part 70: Human body sensor
80:
100: thermo-hygrostat 110: external air damper
112: air supply fan 120: exhaust damper
122: exhaust fan 140: CO ₂ supply device
148: HEPA filter 150: Outdoor sensor part
160: indoor sensor unit 170: human body sensor
180: control unit 190: attracted fan

Claims (16)

1. An environment control system for a closed-type thermostat and a hygrostat method closed-type plant factory equipped with a plurality of tray members accommodating a plant for manufacturing a medicament and equipped with artificial light for providing light energy to the plant,
A thermostatic hygrostat provided in a room of the closed plant plant for supplying air to a room at a preset temperature and a preset humidity;
A CO ₂ supply device for supplying CO ₂ to the room;
An outside air damper for adjusting a flow rate of outside air flowing into the room;
An exhaust damper for adjusting a flow rate of indoor air discharged from the room;
An air supply fan for blowing outside air introduced into the outside air damper;
An exhaust fan for blowing indoor air discharged through the exhaust damper;
An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform;
The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere;
An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air;
A human body detecting sensor for detecting a human body in the room;
When the human body is sensed by the human body sensor and the CO ₂ concentration measured by the indoor CO ₂ sensor is equal to or higher than a preset upper limit value in the daytime mode in which the artificial light is illuminated and the plant performs the photosynthesis, And a control unit for performing an outdoor air introduction control mode in which the outdoor air introduction rate is set differently according to the temperature difference of the outdoor air. 1. An environment control system for a closed-type thermostat and a hygrostat method closed-type plant factory equipped with a plurality of tray members accommodating a plant for manufacturing a medicament and equipped with artificial light for providing light energy to the plant,
A thermostatic hygrostat provided in a room of the closed plant plant for supplying air to a room at a preset temperature and a preset humidity;
A CO ₂ supply device for supplying CO ₂ to the room;
An outside air damper for adjusting a flow rate of outside air flowing into the room;
An exhaust damper for adjusting a flow rate of indoor air discharged from the room;
An air supply fan for blowing outside air introduced into the outside air damper;
An exhaust fan for blowing indoor air discharged through the exhaust damper;
An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform;
The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere;
An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air;
A human body detecting sensor for detecting a human body in the room;
An enthalpy control mode in which the enthalpy of the indoor air is compared with the enthalpy of the outdoor air to introduce outdoor air when the artificial light is turned off and the plant breathes; And a control unit for determining whether any one of the indoor units and the indoor units is set. 1. An environment control system for a closed-type thermostat and a hygrostat method closed-type plant factory equipped with a plurality of tray members accommodating a plant for manufacturing a medicament and equipped with artificial light for providing light energy to the plant,
A thermostatic hygrostat provided in a room of the closed plant plant for supplying air to a room at a preset temperature and a preset humidity;
A CO ₂ supply device for supplying CO ₂ to the room;
An outside air damper for adjusting a flow rate of outside air flowing into the room;
An exhaust damper for adjusting a flow rate of indoor air discharged from the room;
An air supply fan for blowing outside air introduced into the outside air damper;
An exhaust fan for blowing indoor air discharged through the exhaust damper;
An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform;
The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere;
An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air;
A human body detecting sensor for detecting a human body in the room;
And a controller for controlling ventilation of the closed plant by reflecting whether the artificial light is on or off and whether a human body is detected by the human body sensor. 1. An environment control system for a closed-type thermostat and a hygrostat method closed-type plant factory equipped with a plurality of tray members accommodating a plant for manufacturing a medicament and equipped with artificial light for providing light energy to the plant,
A thermostatic hygrostat provided in a room of the closed plant plant for supplying air to a room at a preset temperature and a preset humidity;
A CO ₂ supply device for supplying CO ₂ to the room;
An outside air damper for adjusting a flow rate of outside air flowing into the room;
An exhaust damper for adjusting a flow rate of indoor air discharged from the room;
An air supply fan for blowing outside air introduced into the outside air damper;
An exhaust fan for blowing indoor air discharged through the exhaust damper;
An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform;
The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere;
An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air;
A human body detecting sensor for detecting a human body in the room;
A controller for controlling ventilation of the closed plant by reflecting whether the artificial illumination is on or off, whether a human body is detected by the human body sensor, and CO ₂ concentration measured by the indoor CO ₂ sensor, Environment Control System of Closed Plant Plant with Thermo - hygrostat Method. 1. An environment control system for a closed-type thermostat and a hygrostat method closed-type plant factory equipped with a plurality of tray members accommodating a plant for manufacturing a medicament and equipped with artificial light for providing light energy to the plant,
A thermostatic hygrostat provided in a room of the closed plant plant for supplying air to a room at a preset temperature and a preset humidity;
A CO ₂ supply device for supplying CO ₂ to the room;
An outside air damper for adjusting a flow rate of outside air flowing into the room;
An exhaust damper for adjusting a flow rate of indoor air discharged from the room;
An air supply fan for blowing outside air introduced into the outside air damper;
An exhaust fan for blowing indoor air discharged through the exhaust damper;
An induction fan provided on a ceiling of the room for circulating the air so that the air flow in the room is uniform;
The external air temperature sensor for measuring the temperature of the outside air, and outside air sensor unit including a CO ₂ sensor for the outside air and the outdoor air humidity sensor measuring the relative humidity of the ambient air, and measuring CO ₂ concentration in the atmosphere;
An indoor sensor unit including an indoor temperature sensor for measuring a temperature of the room air, an indoor humidity sensor for measuring a relative humidity of the indoor air, and an indoor CO ₂ sensor for measuring a CO ₂ concentration of the indoor air;
A human body detecting sensor for detecting a human body in the room;
A control unit for controlling the ventilation of the closed plant by reflecting whether the artificial light is on or off, whether a human body is detected by the human body sensor, enthalpy of the indoor air, and enthalpy of the outside air, Environmental control system of closed plant of hygrostat method. The method according to claim 1,
Wherein,
Wherein the enthalpy of the indoor air is compared with the enthalpy of the outdoor air when the human body is sensed by the human body sensor in the daytime mode and the CO ₂ concentration measured by the indoor CO ₂ sensor is less than the upper limit value and equal to or greater than the lower limit value, Is set to the enthalpy control mode,
And compares the enthalpy of the room air and the enthalpy of the outside air when the enthalpy control mode is determined to be set,
If the enthalpy of the outside air is equal to or lower than the enthalpy of the room air,
Determining whether the relative humidity of the outside air is within a predetermined set humidity range if the temperature of the outside air is below the room set temperature,
Wherein the outdoor air introduction control mode is performed when the relative humidity of the outdoor air is within the set humidity range. The method of claim 6,
Wherein,
In the outside air introduction control mode,
If the difference between the indoor air temperature and the outdoor air temperature is equal to or less than a preset minimum value, the operating rate of the air supply fan and the operating rate of the exhaust fan are opened at a predetermined maximum operating rate,
If the difference between the indoor air temperature and the outdoor air temperature exceeds the minimum value and is equal to or less than a predetermined maximum value, the operating rate of the air supply fan and the operating rate of the exhaust fan are opened according to the operating rate set in proportion to the difference in temperature ,
And an environmental control system of a packaged type constant temperature and humidity enclosed plant that opens the operating rate of the supply fan and the operating rate of the exhaust fan at a predetermined minimum operating rate when the difference between the indoor air temperature and the ambient temperature exceeds the maximum value . The method of claim 2,
Wherein,
And compares the enthalpy of the room air and the enthalpy of the outside air when the enthalpy control mode is determined to be set,
If the enthalpy of the outside air is equal to or lower than the enthalpy of the room air,
Determining whether the relative humidity of the outside air is within a predetermined set humidity range if the temperature of the outside air is below the room set temperature,
And an environmental control system of a closed type plant-type thermostat-hygrostat type closed plant for performing the outdoor air introduction control mode when the relative humidity of the outdoor air is within the set humidity range The method of claim 2,
Wherein,
If it is determined that the indoor circulation mode is set,
Wherein the air damper and the exhaust damper are both closed and the air supply fan and the exhaust fan are both stopped. A method for cultivating a plant for producing a medicinal product, the method comprising: a temperature and humidity control unit provided in a room to supply air at a predetermined temperature and a preset humidity to the room; a CO ₂ supply unit for supplying CO ₂ to the room; An air damper for adjusting the flow rate of indoor air discharged from the room, an air supply fan for blowing outside air introduced into the outside air damper, And a humidifier fan disposed in a ceiling of the room for circulating air supplied through the thermo-hygrostat, the method comprising the steps of:
A temperature / humidity measuring step of measuring the temperature and the relative humidity of the indoor air at predetermined time intervals and measuring the temperature and the relative humidity of the outdoor plant of the closed plant at predetermined time intervals;
A day and night setting step of setting any one of a daytime mode in which the artificial light provided in the closed plant plant is lighted by the control unit to perform the photosynthesis of the plant and a nighttime mode in which the artificial light is turned off and the plant is only respiratory; ;
A human body sensing step of determining whether the human body detection sensor detects a human body in the room if the daytime mode is set in the day and night setting step;
When the human body is detected on the human body detection step, CO ₂ sensor is CO ₂ concentration measurement step of measuring a predetermined time interval the CO ₂ concentration of the interior and;
If the CO ₂ concentration of the CO ₂ concentration in the room measured at the measuring step the preset upper limit value or more, the outdoor air introduced to the control ventilated to different settings for the outside air introduction rate according to the difference in temperature and the temperature of the ambient air of the room air Performing a control mode;
If the CO ₂ is less than the said upper limit CO ₂ concentration in the room measured by the concentration measurement step is a pre-set lower limit value or more, enthalpy control mode for introducing outside air as compared to the enthalpy and enthalpy of the outside air of the room air and the outside air An indoor circulation mode for circulating the indoor air without introduction of the indoor air circulation mode;
And calculating enthalpy of the indoor air and enthalpy of the outdoor air based on enthalpy of the indoor air, enthalpy of the outdoor air, temperature of the outdoor air, temperature of the outdoor air, Determining whether the outside air introduction control mode is performed according to the relative humidity;
Wherein the control unit determines whether the enthalpy control mode or the indoor circulation mode is set when the night mode is set in the day and night setting step. The method of claim 10,
If the human body is not detected in the human body detection step, the controller determines whether the CO ₂ concentration in the room is greater than or equal to the lower limit value,
Wherein the controller confirms whether the enthalpy control mode or the indoor circulation mode is set when the CO ₂ concentration in the indoor space is equal to or lower than the lower limit value. The method of claim 10,
Calculating enthalpy of the indoor air and enthalpy of the outdoor air when the enthalpy control mode is determined in the enthalpy control mode checking step,
If the enthalpy of the outside air is equal to or lower than the enthalpy of the room air,
Determining whether the relative humidity of the outside air is within a predetermined set humidity range if the temperature of the outside air is below the room set temperature,
Wherein the ambient air introduction control mode is performed when the relative humidity of the outdoor air is within the set humidity range. The method of claim 10,
Wherein the outdoor air introduction control mode includes an exhaust damper for regulating a discharge flow rate of the indoor air and an outdoor air damper for regulating an inflow flow rate of the outdoor air at a predetermined maximum opening degree,
And controlling the operation of the air supply fan and the air discharge fan at a preset maximum operation rate when the difference between the temperature of the indoor air and the temperature of the ambient air is equal to or less than a preset minimum value. 14. The method of claim 13,
In the outside air introduction control mode,
If the difference between the temperature of the room air and the temperature of the outside air exceeds the minimum value and is less than a predetermined maximum value,
And controlling the operation of the air supply fan and the air discharge fan at an operating rate that is set in proportion to the temperature difference. 15. The method of claim 14,
In the outside air introduction control mode,
If the difference between the temperature of the room air and the temperature of the outside air exceeds the maximum value,
Wherein the operation of the air supply fan and the air discharge fan is controlled at a preset minimum drive ratio. 14. The method of claim 13,
If it is determined that the indoor circulation mode is set in the enthalpy control mode checking step,
Closing both the exhaust damper and the outside-air damper,
Wherein the air supply fan and the exhaust fan are both stopped.

Images