KR20210155020A - Air Conditioning Control System for Smell Generation Sites Using Complex Malodor Information - Google Patents

Abstract

The present invention relates to an air conditioning control system of a foul odor generation site using complex foul odor information, which is capable of complexly treating various types of foul odors generated from foul odor sources. To this end, the air conditioning control system of a foul odor generation site using complex foul odor information comprises at least one positive pressure chamber (100) or at least one negative pressure chamber (200). For a foul odor generation site (300) consisting of a plurality of partitioned spaces, (i) a positive pressure chamber (100), (ii) a negative pressure chamber (200), (iii) a control unit (500), and (iv) a control unit (500) are provided. (i) The positive pressure chamber (100) includes: (i-1) an air supply fan (120) and an air supply hole (130) which supply external air (18); (i-2) an exhaust fan (220) and an exhaust port (230) which draw out air from the positive pressure chamber (100); (i-3) an environmental sensor (410) which detects environmental information of the positive pressure chamber (100); and (i-4) a foul odor sensor (430) which detects foul odor information of the positive pressure chamber (100). (ii) The negative pressure chamber (200) includes: (ii-1) a door (22) communicating with an adjacent space; (ii-2) an exhaust fan (220) and an exhaust port (230) which draw out air from the negative pressure chamber (200); (ii-3) an environmental sensor (410) which detects environmental information of the negative pressure chamber (200); and (ii-4) a bad odor sensor (430) which detects bad odor information of the negative pressure chamber (200). (iii) The control unit (500) calculates a complex bad odor value from a complex bad odor equation based on the outputs of the environmental sensors (410) and the bad odor sensors (430) of the positive pressure chamber (100) and the negative pressure chamber (200). (iv) The control unit (500) individually controls the air supply fan (120) or the exhaust fan (220) by comparing the complex bad odor value with a reference bad odor value.

Description

Air Conditioning Control System for Smell Generation Sites Using Complex Malodor Information

The present invention relates to an air conditioning control system for an odor generating site, and more particularly, to an air conditioning control system for an odor generating site using complex odor information capable of complexly processing various odors generated from an odor source.

Recently, as complaints about disgusting facilities increase, management of odors from facilities is emerging as an important need.

1 is an explanatory diagram schematically illustrating an air conditioning system and a discharge process in a conventional odor generating site (eg, a food waste treatment plant). As shown in FIG. 1 , the odor generating site consists of a series of spaces separated by partition walls and the like, and each space has an odor source 12 for treating food waste. The odor source 12 may be an input hopper, a conveyor belt, an acid fermentation tank, a membrane filtration device, a fermentation tank, a discharge device, and the like.

On the other hand, in the positive pressure chamber 10 of the plurality of spaces, an air supply duct 24 and an air supply fan 16 for introducing external air 18 are provided, and an air supply port 14 is installed on the ceiling. A constant positive pressure is maintained through the inflow of the external air 18 . In addition, the negative pressure chamber 30 has a door 22 or a corridor through which air flows from an adjacent space, and an exhaust duct 44 , an exhaust fan 46 , and an exhaust port 42 are installed on the ceiling. The negative pressure is maintained through the outflow of the internal air 18 .

The exhaust 40 passing through each exhaust port 42 and the exhaust fan 46 joins in the exhaust duct 44 , passes through the cleaning device 50 with a built-in filter, and is discharged to the chimney 57 . At this time, only the odor concentration at the odor generating site was estimated through the signal of the odor sensor 54 installed in the distal region.

Such a conventional air conditioning system depended only on the concentration value at the final stage while ignoring the type or concentration of various odor gases generated from the odor source 12 . In addition, it was not possible to individually monitor or control how much differential pressure was maintained due to the flow of air in each partitioned space. All it did was uniformly change the exhaust fans 46 installed in each space.

In addition, in some odor generating sites, a specific gas sensor (eg, ammonia sensor) was installed and the air conditioning system was manually controlled based on this. Therefore, in the case of large odor generating sites, detailed air conditioning control or monitoring for each space was absent.

1. Republic of Korea Patent Application No. 10-2011-0002269, 2. Republic of Korea Patent Application No. 10-2018-0168610

Accordingly, the present invention has been devised to solve the above problems, and the first object of the present invention is to set each space in the odor generating site as a positive pressure chamber or a negative pressure chamber, and to form an appropriate differential pressure. It is to provide an air conditioning control system for odor generating sites using complex odor information that can be monitored and controlled.

A second object of the present invention is to provide an air conditioning control system for a site of odor generation using complex odor information that can calculate a complex odor value by selecting a representative variable from among the causes of odor generation and using a complex odor equation based on this. will provide

A third object of the present invention is to provide an air conditioning control system for an odor generating site using complex odor information for controlling an air supply fan or an exhaust fan based on the calculated compound odor value and the measured differential pressure.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

In order to achieve the above technical problem, at least one positive pressure chamber 100 or negative pressure chamber 200, and for the odor generating site 300 consisting of a plurality of partitioned spaces; (i) the positive pressure chamber 100, (i-1) the air supply fan 120 and the air supply port 130 for supplying the outside air (18); (i-2) an exhaust fan 220 and an exhaust port 230 for exhausting the positive pressure chamber 100; (i-3) an environmental sensor 410 for detecting environmental information of the positive pressure chamber 100; and (i-4) an odor sensor 430 for detecting odor information of the positive pressure chamber 100;

(ii) the negative pressure chamber 200, (ii-1) a door 22 communicating with the adjacent space; (ii-2) an exhaust fan 220 and an exhaust port 230 for exhausting the negative pressure chamber 200; (ii-3) an environmental sensor 410 for detecting environmental information of the negative pressure chamber 200; and (ii-4) an odor sensor 430 for detecting odor information of the negative pressure chamber 200;

(iii) a control unit 500 for calculating a compound odor value from the compound odor equation based on the outputs of the environmental sensors 410 and the odor sensors 430 of the positive pressure chamber 100 and the negative pressure chamber 200; and (iv) a control unit 500 for individually controlling the supply fan 120 or the exhaust fans 220 by comparing the compound odor value with the reference odor value. An air conditioning control device is provided.

In addition, the environmental sensor 410 includes at least one of a temperature sensor 412 , a humidity sensor 414 , and a pressure sensor 416 .

In addition, the odor sensor 430 _{includes at least one of the H 2} S sensor 432 , the NH ₃ sensor 434 , and the VOCs sensor 436 .

In addition, the compound odor equation is log(complex odor value) = A + B(humidity) + C(H ₂ S) + D log(NH ₃ ) + E log(VOCs), humidity is relative humidity, H ₂ S, NH ₃ , and VOCs are in ppm, and A, B, C, D, E are coefficients between -10 and 10.

In addition, the complex odor equation is

can be

In addition, it further includes a display 530 connected to the control unit 500, the display 530, displays the space of the odor generating site 300 in a plane, the composite odor value 308 for each space; Positive pressure display 307 or negative pressure display 306 set in each space; and alarm display (302, 304) when each space exceeds the reference odor value; at least one of may be displayed.

In addition, the air supply inverter 510 for varying the speed of the air supply fans (120); and an exhaust inverter 520 for varying the speed of the exhaust fans 220 ; It further comprises at least one of

Also, the controller 500 may calculate a differential pressure between adjacent spaces based on the pressures of the pressure sensors 416 , and individually control the air supply fan 120 or the exhaust fans 220 based on the differential pressure.

The above-described object of the present invention is another category. In the control method using the above-described air conditioning control device, the environmental sensor 410 installed in each space of the odor generating site 300 measures environmental information, and the odor sensor ( 430) measuring the odor information of each space (S100); calculating, by the control unit 500, a compound odor value from the compound odor equation based on the environmental information and the odor information (S110); Comparing, by the control unit 500, the composite malodor value and a predetermined reference malodor value (S130); And when the compound odor value is greater than or equal to the reference odor value, the control unit 500 increases the air supply fan 120 or the exhaust fan 220 of the space (S150), and when the compound odor value is less than the reference odor value, the control unit 500 ) can also be achieved by the air conditioning control method at the odor generating site using complex odor information, characterized in that it includes a step (S170) of maintaining or decelerating the speed of the exhaust fan 220 of the corresponding space.

In addition, in the measuring step (S100), the environmental information includes the temperature measured by the temperature sensor 412, the humidity measured by the humidity sensor 414, and the pressure measured by the pressure sensor 416.

In addition, in the measurement step S100 , the odor information is measured by the H _{2 S concentration of H 2} S sensor 432 , the concentration of NH ₃ measured by the NH ₃ sensor 434 , and the VOCs sensor 436 . Include the concentration of one VOCs.

In addition, the compound odor equation is log(complex odor value) = A + B(humidity) + C(H ₂ S) + D log(NH ₃ ) + E log(VOCs), humidity is relative humidity, H ₂ S, NH ₃ , and VOCs are in ppm, and A, B, C, D, and E may be coefficients between -10 and 10.

In addition, in parallel with the measuring step (S100), calculating the differential pressure between the adjacent spaces based on the pressure of the pressure sensors (416) (SS200); Comparing, by the control unit 500, the differential pressure and a predetermined reference differential pressure (S220); And when the differential pressure is less than the reference differential pressure, the controller 500 controls the speed of the exhaust fan 220 in the space to increase the differential pressure (S250), and when the differential pressure is equal to or greater than the reference differential pressure, the controller 500 controls the exhaust of the space. It may include; maintaining or decelerating the speed of the fan 220 (S170).

In addition, when the control speed of the exhaust fan 220 due to the complex odor is different from the control speed of the exhaust fan 220 due to the differential pressure, the control unit 500 applies the control speed of the exhaust fan 220 due to the complex odor first. can do.

According to an embodiment of the present invention, a space in which an odor is generated in an odor generating site is set as a negative pressure room, and a non-odor space such as an office is set as a positive pressure room, so that an appropriate differential pressure is maintained, and the air conditioner can be controlled. . Through this, it is possible to prevent the odor from spreading to an unwanted space, causing pain to the worker, or from spreading to the outside and causing civil complaints in advance.

In addition, by selecting a representative variable from among various causes of odor generation, and using a complex odor equation based on this, a compound odor value can be calculated. Accordingly, there is no need to have a sensor or a judgment logic for all gases that cause odors.

Also, by controlling the supply fan or exhaust fan based on the calculated complex odor value and the measured differential pressure, there is an advantage in that appropriate air conditioning conditions for each space can be satisfied even in a large-scale facility.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so the present invention is described in such drawings It should not be construed as being limited only to
1 is an explanatory view schematically showing an air conditioning system and a discharge process in a conventional odor generating site;
2 is a schematic explanatory diagram of an air conditioning control system at a odor generating site using complex odor information according to an embodiment of the present invention;
3 is a plan view in which the display 530 displays the real-time situation of the odor generating site 300 shown in FIG. 2;
4 is a schematic block diagram of the sensor unit 400 shown in FIG.
Fig. 5 is a schematic block diagram of the system shown in Fig. 2;
6 is a flowchart illustrating a method for controlling air conditioning at a malodor generating site using complex malodor information according to an embodiment of the present invention;
7 is a correlation diagram between variables used to regressively determine each coefficient in a complex malodor equation used in an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various changes and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component. When a component is referred to as being “connected to” another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, "between" and "between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The singular expression is to be understood to include the plural expression unless the context clearly dictates otherwise, and terms such as "comprise" or "have" are not intended to refer to the specified feature, number, step, action, component, part or any of them. It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms defined in general used in the dictionary should be interpreted as having the same meaning in the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

embodiment composition

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings.

In the present invention, the odor generating site 300 may be a food treatment facility, an industrial waste treatment facility, a livestock waste treatment facility, a plating plant, a leather processing plant, a wastewater treatment facility, etc., and for a series of processes, a pipeline or a conveyor belt , a tank, a fermentation process, a grinding process, a filtration process, a washing process, a dehydration process, and the like.

2 is a schematic explanatory diagram of an air conditioning control system of a malodor generating site 300 using complex malodor information according to an embodiment of the present invention. Although one positive pressure chamber 100 and one negative pressure chamber 200 are shown adjacent to each other in FIG. 2 , this is only an example for explanation, and in the odor generation site 300 , a plurality of positive pressure chambers 100 and negative pressure chambers 200 ) and ordinary atmospheric pressure chambers are irregularly arranged and may be adjacent to each other. These are defined as “spaces” hereinafter, and the spaces may be communicated by a door 22 , a hallway, a windscreen, and the like.

The air supply port 130 is disposed at the lower part of the wall of the positive pressure chamber 100 , and the air supply fan 120 and the air supply duct 110 are connected to the air supply port 130 . According to the command of the control unit 500, the air supply fan 120 supplies the outside air 18 into the positive pressure chamber (100). Inside the positive pressure chamber 100 is an odor source 12 . The odor source 12 may be a conveyor belt, tank, fermenter, grinder, filter, washer, dehydrator or exposed material.

An exhaust port 230 is installed in the upper portion or the ceiling of the positive pressure chamber 100 to exhaust odors inside the positive pressure chamber 100 . The exhaust fan 220 is operated by the controller 500 , and the plurality of exhaust fans 220 are connected to the exhaust duct 210 .

The sensor unit 400 is installed on one side to measure the environmental information and odor information inside the positive pressure chamber 100 . The sensor unit 400 is installed in each space.

Inside the negative pressure chamber 200 is an odor source 12 . An exhaust port 230 is installed in the upper portion or the ceiling of the negative pressure chamber 200 to exhaust odors in the negative pressure chamber 100 or to adjust the pressure. The exhaust fan 220 is operated by the controller 500 , and the plurality of exhaust fans 220 are connected to the exhaust duct 210 . The sensor unit 400 is installed on one side to measure environmental information and odor information inside the negative pressure chamber 200 . The negative pressure chamber 200 has a structure in which wind can be introduced from an adjacent space through the door 22 .

3 is a plan view in which the display 530 displays the real-time situation of the odor generating site 300 shown in FIG. 2 . As shown in FIG. 3 , it can be seen that the carry-in chamber 320 is the negative pressure chamber 200 through the negative pressure display 306 of “-”, and the composite malodor value 308 is displayed as “0.5”. In the carry-in room 320, the red mark 304 indicates that the compound odor value 308 has exceeded the standard odor value, and arrows 302 are displayed in all directions to schematically indicate that the odor is spreading to the adjacent space. have.

The display 530 shows a plan view of the carry-in chamber 320, the pre-treatment chamber 330, the carry-out chamber 340, the pump chamber 350, the membrane filtration chamber 360 and the office 370, and each space is a positive pressure chamber ( 100) or the negative pressure chamber 200 is expressed, and the currently monitored complex odor value is expressed. In addition, when the compound odor value 308 exceeds the reference odor value, an arrow 302 and a red mark 304 call the attention of the manager.

FIG. 4 is a schematic block diagram of the sensor unit 400 shown in FIG. 2 . As shown in FIG. 4 , the sensor unit 400 installed in each space includes an environmental sensor 410 for measuring environmental information and an odor sensor 430 for measuring odor information.

The environmental sensor 410 includes a temperature sensor 412 for measuring the temperature of the corresponding space, a humidity sensor 414 for measuring the humidity, and a pressure sensor 416 for measuring the pressure.

_{The odor sensor 430 includes a H 2} S sensor 432 for measuring the concentration _{of hydrogen sulfide (H 2} S) contained in the air of the space _{, an NH 3} sensor 434 for measuring the concentration of ammonia gas, and the It includes a VOCs sensor 436 that measures the concentration. In an embodiment of the present invention, hydrogen sulfide, ammonia, and VOC are selected as representative odor-causing substances, but other odor substances may be added or replaced as necessary.

Fig. 5 is a schematic block diagram of the system shown in Fig. 2; As shown in FIG. 5 , the air supply fan 120 is installed in a positive pressure chamber 100 or a space requiring ventilation among a plurality of spaces, and is connected to the control unit 500 through an air supply inverter 510 . According to a control command of the controller 500 , the air supply inverter 510 may change the rotation speed of the corresponding air supply fan 120 .

The exhaust fan 220 is respectively installed in the negative pressure chamber 200 or a space requiring exhaust among a plurality of spaces, and is connected to the control unit 500 through an exhaust inverter 520 . According to a control command of the controller 500 , the exhaust inverter 520 may change the rotation speed of the corresponding exhaust fan 220 .

The control unit 500 may be a microcomputer or a CPU, and an operation program or a control program may be executed. A typical example may be the central processing unit of a computer, laptop, tablet, or smartphone.

The display 520 is connected to the control unit 500 and is an LCD monitor capable of displaying the odor generation site 300 as shown in FIG. 3 . The display 520 may receive an input from the manager through the touch screen.

The setting unit 540 stores a reference odor value, a reference differential pressure, and the like, can be changed by an administrator, and stores conversion data necessary for other system operations. The setting unit 540 may be a ROM.

The storage unit 550 is a member that stores a program operated by the control unit 500 , an operation result, log data of monitoring, and the like. The storage unit 550 may be a hard disk, SSD, flash memory, optical recording device, RAM, or the like.

The communication unit 560 is connected to the control unit 550 , receives information from the outside and transmits it to the control unit 500 , and transmits information of the control unit 500 or the storage unit 550 to the outside. The communication unit 560 may be a wired communication unit or a wireless communication unit. In the case of wireless communication, it may include a cellular module, a Wifi module, a Bluetooth module, a GPS module, an NFC module, and a radio frequency (RF) module.

Complex Odor Equation

Hereinafter, the complex malodor equation used in the present invention will be described. First, the complex odor equation is primarily determined according to the Weber-Fechner's Law and the selected odor material. The specific equation is [Equation 1].

Here, A and B are constants for each substance according to [Table 1], C is the concentration (ppm) of the odor substance, and D is the dilution factor.

Types of designated odors A B References Hydrogen sulfide 1.2001 -4.0085 Jinseok Han, Sangjin Park (2012) and 1 other case* Methyl mercaptane 1.0228 -3.8133 Dimethyl sulfide 0.9873 -3.2832 Dimethyl disulfide 1.0384 -3.0332 Ammonia 1.055 0.2055 Trimethylamine 0.9691 -3.5127 Styrene 1.0182 -1.395 Acetaldehyde 0.9818 -2.3 Butyraldehyde 1.2012 -3.3545 Propionaldehyde 1.1311 -2.5375 n-Valeraldehyde 1.0198 -2.9995 i-Valeraldehyde 0.9023 -3.0662 m-Xylene 1.5411 0.5 Study week, etc. (2016)** Toluene 1.7371 0.5 Methyl ethyl ketone 1.3835 0.5 Methyl isobutyl ketone 1.5021 0.5 Butyl acetate 1.5009 0.5 propionic acid 0.9973 -1.5904 Han et al (2018)*** n-Butyric acid 0.9348 -2.959 n-Valeric acid 1.019 -3.5342 i-Valeric acid 0.9874 -3.5806 i-Butyl alcohol 1.0517 -1.1299

* Han Jin-seok and Park Sang-jin (2012), A study on the appropriate island review and improvement plan for the permitted emission concentration standards for designated odorous substances, Journal of the Korean Society of Odor and Environmental Sciences, 12(2), 69-81,* Han Jin-seok and Park Sang-jin (2012), styrene and aldehyde substances A study on the correlation between concentration and dilution factor, Journal of the Korean Society for Odor Environment, 11(3), 126-133,

** Bubba Joo, Jinseok Han, Seontae Kim, Hansu Kim, (2016) A study on the correlation between odor intensity and dilution factor of aromatic hydrocarbons, ketones and ester compounds, 16(1), 1-8,

*** Jin-Seok Han, Sang-Woo Han, Sun-Tae Kim, (2018), A study on the correlation between the concentration and dilution factor of fatty acids, i-butyl alcohol, Journal of Odor and Indoor Environment, 17 (3) 265-273.

By the way, the first-order regression equation is derived using the python stansmodels module. In this case, temperature, humidity, ammonia, hydrogen sulfide, VOCs, log(H ₂ S), and log(VOCs) are used as independent variables, and complex odor values are used as dependent variables.

7 is a correlation diagram between variables used when determining each coefficient recursively in such a complex malodor equation. As shown in FIG. 7 , each independent variable is defined on a horizontal axis and a vertical axis, and each correlation coefficient has a value between -0.6 and 1.0.

For example, in the quadratic regression equation, temperature, humidity, ammonia, hydrogen sulfide, VOCs, and log(VOCs) were used as independent variables and log(H ₂ S) was excluded.

And, in the third regression equation, temperature, humidity, ammonia, hydrogen sulfide, VOCs, and log(VOCs) were used as independent variables, and the log value of the complex odor (log(complex odor)) was used as the dependent variable.

And, in the fourth regression equation, temperature, humidity, hydrogen sulfide, VOCs, and log(VOCs) were used as independent variables, and ammonia was excluded.

Through this continuous process, the complex odor equation is

log(composite odor value) = A + B(humidity) + C(H ₂ S) + D log(NH ₃ ) + E log(VOCs), where humidity is relative humidity, H ₂ S, NH ₃ , VOCs are in ppm units, and A, B, C, D, and E in the complex equation have coefficients between -10 and 10.

And, in one embodiment of the present invention, the finally derived complex malodor equation is as [Equation 2].

operation of the embodiment

Hereinafter, the operation of the preferred embodiment will be described in detail with reference to the accompanying drawings. 6 is a flowchart illustrating a method for controlling air conditioning at a malodor generating site using complex malodor information according to an embodiment of the present invention. As shown in FIG. 6 , first, the environmental sensor 410 installed in each space of the odor generating site 300 measures environmental information, and the odor sensor 430 measures the odor information of each space ( S100 ). That is, the temperature sensor 412 measures the temperature in the corresponding space, the humidity sensor 414 measures the humidity, and the pressure sensor 416 measures the pressure. Then, the H ₂ S sensor 432 measures the concentration of _{H 2 S, the NH 3} sensor 434 _{measures the concentration of NH 3} , and the VOCs sensor 436 measures the concentration of VOCs.

Then, the control unit 500 calculates a compound odor value from the compound odor equation based on the environmental information and the odor information (S110). The compound malodor equation is as in [Equation 2], and the calculated compound malodor value has values such as 0.5, 0.2, -2.0, 0.6, -1.0, etc. as shown in FIG. 3 .

Next, the control unit 500 compares the composite odor value with a reference odor value predetermined in the setting unit 540 ( S130 ). If the calculated compound odor value is greater than or equal to the reference odor value, it is determined that the odor is severe and needs to be exhausted. Accordingly, the control unit 500 supplies the external air 18 by increasing the air supply fan 120 of the corresponding space, or discharges the bad smell by increasing the exhaust fan 220 ( S150 ).

If the compound odor value is less than the reference odor value, the controller 500 maintains the speed of the exhaust fan 220 in the corresponding space or decelerates to save power (S170).

In addition, in parallel with the above-described measuring step (S100), the control unit 500 calculates the differential pressure between the adjacent spaces based on the pressure of the pressure sensors (416) (SS200). That is, by measuring the pressure in the positive pressure chamber 100 and the pressure in the negative pressure chamber 200 as shown in FIG. 2 , and subtracting these pressures, the differential pressure can be calculated.

Next, the control unit 500 compares the calculated differential pressure with a predetermined reference differential pressure in the setting unit 540 ( S220 ).

If the calculated differential pressure is less than the reference differential pressure, the control unit 500 controls the speed of the exhaust fan 220 in the corresponding space to increase the differential pressure (S250), that is, the supply fan 120 of the positive pressure chamber 100. to increase the speed, stop the exhaust fan 220 of the positive pressure chamber 100 , and increase the speed of the exhaust fan 220 of the negative pressure chamber 200 .

If the differential pressure is equal to or greater than the reference differential pressure, the controller 500 maintains the speed of the exhaust fan 220 in the corresponding space or decelerates to save power (S170).

In addition, when the control speed of the exhaust fan 220 due to the compound odor is different from the control speed of the exhaust fan 220 due to the differential pressure, the control unit 500 applies the control speed of the exhaust fan 220 due to the compound odor first. You can do it, or you can control it by averaging it.

By continuously repeating this process, odor and differential pressure can be monitored in real time and controlled in real time.

The detailed description of the preferred embodiments of the present invention disclosed as described above is provided to enable any person skilled in the art to make and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art can use each configuration described in the above-described embodiments in a way in combination with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims can be combined to form an embodiment or included as a new claim by amendment after filing.

5: stench;
10: positive pressure room, 12: odor source,
14: air inlet, 16: air supply fan,
18: outside air, 20: supply air,
22: door, 24: supply air duct,
30: negative pressure chamber, 40: exhaust,
44: exhaust duct, 46: exhaust fan,
50: cleaning device, 54: odor sensor,
57: chimney, 59: exhaust gas,
100: positive pressure room, 110: air supply duct,
120: air supply fan, 130: air supply port,
140: supply air, 200: negative pressure chamber,
210: exhaust duct, 220: exhaust fan,
230: exhaust port, 240: exhaust,
300: odor generation site, 302: arrow,
304: red display, 306: sound pressure display,
307: positive pressure display, 308: complex odor value,
320: carry-in room, 340: take out room,
350: pump room, 360: membrane filtration room,
370: office, 400: sensor unit,
410: environmental sensor, 412: temperature sensor,
414: humidity sensor, 416: pressure sensor,
430: odor sensor, 432: H ₂ S sensor,
434: NH ₃ sensor, 436: VOCs sensor,
500: control unit, 510: supply air inverter,
520: exhaust inverter, 530: display,
540: setting unit, 550: storage unit,
560: communication department.

Claims (14)

at least one positive pressure chamber 100 or negative pressure chamber 200, for the odor generating site 300 consisting of a plurality of partitioned spaces;
(i) the positive pressure chamber 100,
(i-1) the air supply fan 120 and the air supply port 130 for supplying the outside air (18);
(i-2) an exhaust fan 220 and an exhaust port 230 for exhausting the positive pressure chamber 100;
(i-3) an environmental sensor 410 for detecting environmental information of the positive pressure chamber 100; and
(i-4) an odor sensor 430 for detecting odor information of the positive pressure chamber 100;
(ii) the negative pressure chamber 200,
(ii-1) a door 22 communicating with the adjacent space;
(ii-2) an exhaust fan 220 and an exhaust port 230 for exhausting the negative pressure chamber 200;
(ii-3) an environmental sensor 410 for detecting environmental information of the negative pressure chamber 200; and
(ii-4) an odor sensor 430 for detecting odor information of the negative pressure chamber 200;
(iii) a control unit 500 for calculating a compound odor value from a compound odor equation based on the outputs of the environmental sensors 410 and the odor sensor 430 in the positive pressure chamber 100 and the negative pressure chamber 200; and
(iv) the control unit 500 for individually controlling the supply fan 120 or the exhaust fans 220 by comparing the compound odor value with the reference odor value; Air conditioning control device at the site of occurrence. The method of claim 1,
The environmental sensor (410) is an air conditioning control device at a odor generating site using complex odor information, characterized in that it includes at least one of a temperature sensor (412), a humidity sensor (414) and a pressure sensor (416). The method of claim 1,
The odor sensor 430 is a H ₂ S sensor 432 , an NH ₃ sensor 434 , and a VOCs sensor 436 . . The method of claim 1,
The complex malodor equation is,
log(complex odor value) = A + B(humidity) + C(H ₂ S) + D log(NH ₃ ) + E log(VOCs),
The humidity is relative humidity, the H ₂ S, NH ₃ , VOCs are in ppm units,
Wherein A, B, C, D, and E are coefficients between -10 and 10. 5. The method of claim 4,
The complex malodor equation is,

An air conditioning control device at the site of odor generation using complex odor information, characterized in that The method of claim 1,
Further comprising a display 530 connected to the control unit 500, the display 530,
The space of the odor generation site 300 is displayed as a plane,
the composite malodor value 308 for each space;
Positive pressure display 307 or negative pressure display 306 set in each space; and
Alarm display (302, 304) when each space exceeds a reference odor value; Air conditioning control apparatus at a malodor generating site using complex odor information, characterized in that it displays at least one of. The method of claim 1,
an air supply inverter 510 for varying the speed of the air supply fans 120; and
an exhaust inverter 520 for varying the speed of the exhaust fans 220; Air conditioning control device for a site of odor generation using complex odor information, characterized in that it further comprises at least one of. 3. The method of claim 2,
The control unit 500,
Composite odor, characterized in that the differential pressure between the adjacent spaces is calculated based on the pressures of the pressure sensors 416, and the air supply fan 120 or the exhaust fans 220 are individually controlled based on the differential pressure An air conditioning control device at the odor generating site using information. In the control method using the air conditioning control device according to any one of claims 1 to 8,
A step (S100) of measuring the environmental information by the environmental sensor 410 installed in each space of the odor generating site 300, and the odor sensor 430 measuring the odor information of each space;
calculating, by the control unit 500, a compound odor value from a compound odor equation based on the environment information and the odor information (S110);
Comparing, by the control unit 500, the composite odor value and a predetermined reference odor value (S130); and
When the compound odor value is equal to or greater than the reference odor value, the control unit 500 increases the air supply fan 120 or the exhaust fan 220 of the corresponding space (S150), and when the compound odor value is less than the reference odor value , wherein the control unit 500 maintains or decelerates the speed of the exhaust fan 220 of the corresponding space (S170); 10. The method of claim 9,
In the measuring step (S100), the environmental information is a complex odor, characterized in that it includes the temperature measured by the temperature sensor 412, the humidity measured by the humidity sensor 414, and the pressure measured by the pressure sensor 416 A method of controlling the air conditioning in the odor generating site using information. 10. The method of claim 9,
In the measuring step (S100), the odor information, H ₂ S sensor 432 that measures the concentration of the H ₂ S measurements, NH ₃ concentration, and VOCs sensor 436 of the a NH ₃ sensor 434 An air conditioning control method at a malodor generating site using complex odor information, characterized in that it includes the concentration of one VOCs. 10. The method of claim 9,
The complex malodor equation is,
log(complex odor value) = A + B(humidity) + C(H ₂ S) + D log(NH ₃ ) + E log(VOCs),
The humidity is relative humidity, the H ₂ S, NH ₃ , VOCs are in ppm units,
Wherein A, B, C, D, E are coefficients between -10 and 10. An air conditioning control method at a malodor generating site using complex odor information. 10. The method of claim 9,
In parallel with the measuring step (S100),
Calculating the differential pressure between the adjacent spaces based on the pressure of the pressure sensors 416 (SS200);
Comparing, by the control unit 500, the differential pressure and a predetermined reference differential pressure (S220); and
When the differential pressure is less than the reference differential pressure, the control unit 500 controls the speed of the exhaust fan 220 in the corresponding space to increase the differential pressure (S250), and when the differential pressure is equal to or greater than the reference differential pressure, the control unit 500 ) is a step (S170) of maintaining or decelerating the speed of the exhaust fan 220 in the corresponding space. 14. The method of claim 13,
When the control speed of the exhaust fan 220 due to the compound odor is different from the control speed of the exhaust fan 220 due to the differential pressure, the control unit 500 controls the exhaust fan 220 due to the compound odor. An air conditioning control method at a odor generating site using complex odor information, characterized in that the control speed is applied.

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