WO2022044423A1 - Deodorizing device control system - Google Patents

Deodorizing device control system Download PDF

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Publication number
WO2022044423A1
WO2022044423A1 PCT/JP2021/015948 JP2021015948W WO2022044423A1 WO 2022044423 A1 WO2022044423 A1 WO 2022044423A1 JP 2021015948 W JP2021015948 W JP 2021015948W WO 2022044423 A1 WO2022044423 A1 WO 2022044423A1
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Prior art keywords
odor
building
deodorizing device
plant
unit
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PCT/JP2021/015948
Other languages
French (fr)
Japanese (ja)
Inventor
豊 三宮
一郎 山野井
浩人 横井
Original Assignee
株式会社日立製作所
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to CN202180033201.XA priority Critical patent/CN115552178A/en
Publication of WO2022044423A1 publication Critical patent/WO2022044423A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to a system that controls a deodorizing device according to the strength of an odor.
  • Maintenance work in plants such as chemical plants, electric power plants, water and sewage plants, and waste treatment plants involves, for example, stopping the equipment when the operator hears an abnormal noise that does not normally exist. It may be carried out by relying on the five senses and experience. At present, such maintenance work is often handled by having an operator stay at all times even if the plant is operating continuously for 24 hours. However, when there is a shortage of manpower, such a response may be difficult.
  • IoT and AI technologies In order to continue the maintenance work of the plant even if there is a shortage of manpower, the five senses and experience of the operators are being replaced by IoT and AI technologies. For example, there is a technology that uses a camera instead of the operator's vision and processes images and videos taken by the camera to diagnose changes in the appearance of equipment and products. In addition, there is a technology that uses a microphone instead of hearing and processes the sound data collected by the microphone to detect abnormal noise in the equipment. Such technologies have begun to be offered as solutions in recent years.
  • the sense of smell of the operator is also important because it is used to detect offensive odors (for example, odors such as burnt odors and stink odors) generated in the plant.
  • Smell is a field that has not been replaced by sight and hearing because of its variety and strength.
  • an odor sensor or a concentration sensor capable of measuring odorous substances in the equipment in the plant and utilizing these sensors as a substitute for the sense of smell of the operator.
  • Patent Document 1 An example of a technique of detecting an odor using a sensor and controlling a deodorizing device or a ventilation device using the detected data is described in Patent Document 1-2.
  • the garbage disposal device described in Patent Document 1 includes an exhaust means for exhausting an odorous component in an exhaust gas, an odor sensor for detecting the odor of the exhaust gas, and a deodorizing means for deodorizing the exhaust gas. Turn on the deodorizing means based on the detection result.
  • the deodorization control system described in Patent Document 2 is provided with an odor sensor, a deodorizing device for deodorizing odor gas, a damper for controlling the ventilation amount of a duct, and a blower, and corresponds to the concentration of odor gas detected by the odor sensor. It controls the start and stop of the deodorizing device, controls the exhaust, intake and stop of the blower, and controls the opening and closing of the damper.
  • an odor sensor is installed inside a plant building or in a gas exhaust passage, and a deodorizing device or a ventilation device is used by using the odor data detected by the odor sensor.
  • the deodorizing device and the ventilation device are controlled without considering the environment outside the building, and the odorous gas inside the building is discharged to the outside of the building. If odor gas is emitted from the building without considering the external environment, even if the odor intensity meets the standard value, the odor may reach the houses around the plant and adversely affect the living environment. ..
  • An object of the present invention is to provide a deodorizing device control system capable of controlling the odorous gas inside the plant building to be discharged to the outside of the building in consideration of the environment outside the building.
  • the deodorizing device control system includes an odor acquisition unit that acquires the strength of the odor inside the plant building, an external sensor that measures the external environment of the building and acquires information about the external environment, and the above.
  • the deodorizing device which is a device for discharging the odor gas inside the building to the outside of the building, the strength of the odor inside the building acquired by the odor acquisition unit, and the external environment acquired by the external sensor.
  • the operation control unit for controlling the operation of the deodorizing device is provided so that the odor intensity of the odorous gas discharged to the outside of the building becomes equal to or less than a predetermined reference value.
  • a deodorizing device control system capable of controlling the odor gas inside the plant building to be discharged to the outside of the building in consideration of the environment outside the building.
  • FIG. 2 is a flowchart showing a procedure in which the operation control unit controls the operation of the ventilation unit and the deodorization unit, which are deodorizing devices, in the second embodiment. It is a figure which shows the structure of the deodorizing apparatus control system by Example 3 of this invention.
  • FIG. 3 is a flowchart showing a procedure in which the operation control unit controls the operation of the ventilation unit, which is a deodorizing device, in the third embodiment.
  • the deodorizing device control system controls the emission of odorous gas from the plant building by using information on the strength of the odor inside the plant building and the external environment of the plant building.
  • the strength of the odor inside the plant building is acquired by the odor acquisition unit (for example, the odor generation estimation unit or the odor sensor).
  • Information about the external environment of the plant building is measured and acquired by sensors installed outside the plant.
  • the odor intensity inside the plant building is acquired by the odor acquisition unit, and the external environment of the plant building is measured and acquired to obtain the odor gas inside the plant building. Can be controlled in consideration of the external environment of the building, and the optimum operation can be performed according to the strength of the odor and the external environment. Further, since the deodorizing device control system according to the present invention acquires the strength of the odor inside the plant building by using the odor acquisition unit, it is possible to save labor and remote control.
  • FIG. 1 is a diagram showing a configuration of a deodorizing device control system according to this embodiment.
  • the deodorizing device control system 10 is installed in the plant 100 and includes a monitoring control unit 200, an external sensor 300, an information acquisition unit 400, an odor generation estimation unit 500, a ventilation unit 600, and an operation control unit 700.
  • the monitoring and control unit 200 monitors and controls the facilities and equipment of the plant 100, and acquires information about the operating state of the plant 100.
  • the external sensor 300 is a sensor installed outside the plant 100 and measures the external environment of the building 110 of the plant 100, and acquires information about the external environment of the building 110 of the plant 100.
  • the information acquisition unit 400 acquires the information about the operating state of the plant 100 obtained by the monitoring and control unit 200 and the information about the external environment of the building 110 of the plant 100 obtained by the external sensor 300.
  • the odor generation estimation unit 500 is an odor acquisition unit that acquires the strength of the odor inside the building 110 of the plant 100.
  • the odor generation estimation unit 500 acquires information on the operating state of the plant 100 acquired by the monitoring and control unit 200 from the information acquisition unit 400, and from the information on the operating state of the plant 100, the odor inside the building 110 of the plant 100. Estimate and obtain strength.
  • the ventilation unit 600 is provided with a duct and a blower, and is a device for discharging the odorous gas inside the building 110 of the plant 100 to the outside of the building 110, and constitutes the deodorizing device of the deodorizing device control system 10.
  • the operation control unit 700 is based on the strength of the odor inside the building 110 of the plant 100 acquired by the odor generation estimation unit 500 and the information about the external environment of the building 110 of the plant 100 acquired by the external sensor 300.
  • the operation of the ventilation unit 600 is controlled so that the odor intensity of the odorous gas discharged to the outside of the building 110 of 100 becomes equal to or less than a predetermined reference value.
  • the operation control unit 700 acquires information about the external environment of the building 110 of the plant 100 from the information acquisition unit 400. Further, the operation control unit 700 includes an output unit, and can output a message or an alarm to the operator by characters or voice.
  • the monitoring control unit 200, the external sensor 300, the information acquisition unit 400, the odor generation estimation unit 500, the ventilation unit 600, and the operation control unit 700 communicate with each other to transmit and receive information. Any means such as a wireless LAN or a wired LAN can be used for this communication.
  • the information acquisition unit 400, the odor generation estimation unit 500, and the operation control unit 700 can be configured by a computer.
  • This computer includes a CPU, a storage device such as a memory and a hard disk, and a network interface, and stores a program for realizing the information acquisition unit 400, the odor generation estimation unit 500, and the operation control unit 700 in the computer. ..
  • the plant 100 is, for example, a plant such as a chemical plant, an electric power plant, a water and sewage plant, and a waste treatment plant.
  • a sewage treatment plant is a facility that purifies sewage from sewage and discharges the purified treated water to rivers, lakes or seas, and has multiple facilities such as sand basins, first sedimentation basins, reaction tanks, final sedimentation basins, and sludge concentration. Equipped with a tank and sludge dewatering equipment. Due to the treatment in these facilities, the odor-causing substances contained in the treatment target are contained in the droplets and diffused or released into the atmosphere. At this time, substances that diffuse in droplets and those that are released into the atmosphere include viruses and bacteria in addition to the substances that cause odors. There are various types of such viruses such as norovirus and coronavirus.
  • the causative substances of odor are mainly hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide, and ammonia.
  • these odors are collectively treated as odors, for example, odors above the standard value of the odor index set at the site boundary (the boundary between the site of the sewage treatment plant and the outside of the sewage treatment plant). It is managed so that it does not leak due to its strength.
  • chlorine used for disinfection causes odors such as chlorine odor and chlorine odor.
  • such odors are also managed as odors.
  • the monitoring and control unit 200 is a device for monitoring and controlling the operating state of the plant 100, and includes a process controller and the like. A large number of sensors are installed in the facilities and equipment of the plant 100, and the operating state of the plant 100 is measured by these sensors. The monitoring control unit 200 acquires information about the operating state of the plant 100 from the measured values of these sensors.
  • Examples of information about the operating state of the plant 100 acquired by the monitoring and control unit 200 include data obtained by the operation of the plant and signals for controlling the operation of the plant.
  • examples of information about the operating state of the plant 100 include water quality data of treated water such as water temperature, pH, oxidation-reduction potential, TOC (total organic carbon), and sludge concentration, and the flow rate of treated water and the flow rate of treated water. It includes processing data such as the amount of blast air, and the value of the control signal indicating the amount of the drug input and the opening degree of the valve.
  • the monitoring control unit 200 acquires, for example, the above data and signal values as information about the operating state of the plant 100 from the sensors installed in the plant 100.
  • the external sensor 300 is a sensor that measures the external environment of the building 110 of the plant 100 and acquires information about the external environment of the building 110 of the plant 100.
  • the external sensor 300 measures and acquires at least the wind speed and the wind direction as information about the external environment of the building 110 of the plant 100.
  • the wind speed and wind direction which are the external environments of the building 110 of the plant 100, are factors that greatly affect the diffusion of odor-causing substances.
  • the external sensor 300 includes an anemometer and an anemometer, or an anemometer, measures the wind speed and the wind direction, and acquires information on the wind speed and the wind direction.
  • Information about the external environment of the building 110 of the plant 100 can include, for example, humidity, temperature, odor, and the presence or absence of a person, in addition to the wind speed and direction.
  • the external sensor 300 includes at least one of a hygrometer, a thermometer, an odor sensor, a camera, a microphone, and the like, and can acquire information on humidity, temperature, odor, and the presence or absence of a person.
  • the information acquisition unit 400 acquires information about the operating state of the plant 100 from the monitoring and control unit 200, acquires information about the external environment of the building 110 of the plant 100 from the external sensor 300, and uses these information as time-series data. save. For example, the information acquisition unit 400 acquires and stores such information at 1-minute intervals.
  • the odor generation estimation unit 500 is an odor acquisition unit, and estimates and acquires the strength of the odor inside the building 110 of the plant 100 based on the information acquired by the monitoring control unit 200.
  • the intensity of the odor any one of the indexes such as the odor concentration, the odor index, the odor intensity, and the numerical value of the odor obtained by the odor sensor can be used.
  • the odor generation estimation unit 500 obtains and stores in advance a model for estimating the odor intensity inside the building 110 by using the information about the operating state of the plant 100 acquired by the monitoring control unit 200.
  • This model is an odor estimation model that represents the relationship between the information about the operating state of the plant 100 acquired by the monitoring control unit 200 and the strength of the odor inside the building 110.
  • the odor generation estimation unit 500 estimates the strength of the odor inside the building 110 of the plant 100 from the information on the operating state of the plant 100 acquired by the monitoring control unit 200 using the odor estimation model.
  • the odor generation estimation unit 500 obtains in advance an odor estimation model that represents the relationship between the data obtained by the operation of the plant 100 (for example, the water quality data of the treated water) and the odor intensity inside the building 110 of the plant 100. Using this odor estimation model, the strength of the odor inside the building 110 of the plant 100 is estimated from the data obtained by the operation of the plant 100.
  • the odor estimation model can be constructed and obtained using existing methods.
  • the odor estimation model uses information on the operating state of the plant 100 acquired by the monitoring and control unit 200 and the strength of the odor inside the building 110 obtained by measuring each operating state with an odor sensor. Can be used and constructed.
  • An odor estimation model can be constructed, for example, by creating a multiple regression model with water quality information as an explanatory variable and odor intensity as an objective variable in multiple regression analysis, which is one of statistical analyzes. Can be done.
  • the odor estimation model can be created by machine learning using a neural network or data clustering technology.
  • the odor estimation model may be any model as long as it can estimate the strength of the odor inside the building 110 of the plant 100 from the information on the operating state of the plant 100 acquired by the monitoring control unit 200. It may be constructed by the method of.
  • FIG. 2 is a graph showing an example of the relationship between the concentration of hydrogen sulfide, which is a causative substance of odor, in water and the redox potential of treated water, which is information about the operating state of the plant 100.
  • the vertical axis shows the concentration of hydrogen sulfide.
  • the horizontal axis shows the redox potential, and the negative value increases from right to left. The larger the redox potential is, the higher the concentration of hydrogen sulfide in water, the greater the amount of hydrogen sulfide released into the atmosphere, and the stronger the odor.
  • the odor generation estimation unit 500 acquires, for example, the relationship between the redox potential of the treated water and the concentration of hydrogen sulfide in the water as shown in FIG. 2, and models this relationship by statistical analysis or machine learning to estimate the odor. You can build a model. In this odor estimation model, the strength of the odor inside the building 110 of the plant 100 is based on the concentration of hydrogen sulfide in the water (that is, the amount of hydrogen sulfide released into the atmosphere) from the redox potential of the treated water. Can be estimated.
  • the ventilation unit 600 is a deodorizing device of the deodorizing device control system 10, includes a duct and a blower, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110.
  • the blower is preferably operated by, for example, inverter control.
  • the operation control unit 700 includes information on the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500, the external environment of the building 110 of the plant 100 acquired by the external sensor 300, and the ventilation unit 600.
  • the operation of the ventilation unit 600 is controlled based on the displacement when the blower is operated.
  • the operation control unit 700 can control the exhaust amount of the ventilation unit 600 by controlling the start and stop of the operation of the blower and the amount of air blown by the blower. The larger the displacement of the ventilation unit 600, the larger the amount of odor exhausted, so that the strength of the odor inside the building 110 is greatly reduced.
  • FIG. 3 is a graph showing an example of the relationship between the displacement D of the ventilation unit 600 and the strength of the odor inside the building 110 of the plant 100.
  • the intensity of the odor is represented by the odor index O2.
  • the vertical axis shows the odor index O2 inside the building 110.
  • the horizontal axis shows the displacement D of the ventilation unit 600.
  • the odor index O2 inside the building 110 when the blower of the ventilation unit 600 is operated and exhausted can be estimated by the known equation (1) using the displacement D of the ventilation unit 600.
  • O2 ⁇ ⁇ O1 / D ...
  • O1 is the intensity of the odor estimated by the odor generation estimation unit 500, that is, the odor index inside the building 110 when the ventilation unit 600 is not exhausting.
  • ⁇ is an arbitrary coefficient.
  • the odor intensity is expressed by the odor index, but the odor intensity can be any one of the odor concentration, the odor intensity, and the odor values obtained by the odor sensor. You may use it.
  • the odor intensity an index related to the odor intensity, which is easy to manage in the plant 100, may be used.
  • the odorous gas discharged to the outside of the building 110 of the plant 100 by the ventilation unit 600 is diffused and diluted by atmospheric dispersion.
  • the odor gas discharged from the building 110 of the plant 100 is taken into consideration in consideration of the information (wind speed and wind direction) about the external environment of the building 110 of the plant 100 acquired by the external sensor 300.
  • the strength of the odor at the site boundary outside the building 110 is estimated.
  • the site boundary is the boundary between the site of the plant 100 and the outside of the plant 100.
  • the intensity of the odor at the site boundary of the odorous gas discharged from the building 110 of the plant 100 is obtained by using an existing method in consideration of the diffusion of the odor by the wind.
  • FIG. 4 is a diagram showing an example of the relationship between the strength of odor and the wind direction at the boundary of the site.
  • the intensity of odor is represented by an odor index.
  • FIG. 4 compares the odor indexes at the site boundary on the windward side and the site boundary on the leeward side, where the distances from the exhaust points are equal to each other. Even if the distances from the exhaust points are equal to each other, the odor index at the leeward site boundary is larger than the odor index at the leeward site boundary. That is, on the leeward side, the odor is stronger than on the upwind side.
  • the odor index at the boundary of the site is affected not only by the displacement of the ventilation unit 600 and the odor index at the exhaust point, but also by the wind direction. That is, the odor index at the site boundary differs depending on whether the site boundary is upwind or leeward from the exhaust point, as shown in FIG. The odor index at the boundary of the site is also affected by the wind speed.
  • the odor gas is discharged from the building 110 in consideration of the external environment (for example, wind speed and wind direction) of the building 110 of the plant 100. It is necessary to calculate the diffusion of odorous gas and estimate the strength of the odor at the boundary of the site.
  • the odor index is used as an index of the odor intensity calculated by the diffusion calculation, but the odor intensity index is not limited to the odor index and any index can be used.
  • FIG. 5 is a flowchart showing a procedure in which the operation control unit 700 controls the operation of the ventilation unit 600, which is the deodorizing device in the present embodiment, in the present embodiment.
  • the operation control unit 700 acquires information about the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500 from the odor generation estimation unit 500.
  • the operation control unit 700 compares the odor intensity acquired in S1 with the reference value of the odor intensity inside the building 110 (hereinafter referred to as "indoor reference value").
  • the indoor standard value can be arbitrarily set in advance. If the strength of the acquired odor is equal to or less than the indoor standard value, the process proceeds to S3, and if the acquired odor intensity exceeds the indoor standard value, the process proceeds to S4.
  • the operation control unit 700 stops the operation of the ventilation unit 600 when the ventilation unit 600 is operating.
  • the operation control unit 700 calculates the displacement of the ventilation unit 600 from the strength of the odor inside the building 110 of the plant 100 acquired in S1 and the indoor reference value.
  • the operation control unit 700 obtains and stores in advance the relationship between the displacement of the ventilation unit 600 and the strength of the odor inside the building 110 of the plant 100 (for example, FIG. 3 and equation (1)). Based on this relationship, the operation control unit 700 calculates the displacement of the ventilation unit 600 so that the strength of the odor inside the building 110 of the plant 100 is equal to or less than the indoor reference value.
  • the operation control unit 700 acquires information (at least wind speed and wind direction) about the external environment of the building 110 of the plant 100 from the information acquisition unit 400.
  • the operation control unit 700 calculates the diffusion of the odorous gas discharged from the building 110 of the plant 100 by using the displacement of the ventilation unit 600 calculated in S4 and the information about the external environment acquired in S5. By doing so, the strength of the odor at the boundary of the site is estimated.
  • the operation control unit 700 compares the odor intensity at the site boundary estimated in S6 with the reference value of the odor intensity at the site boundary (hereinafter referred to as "reference value of the site boundary").
  • the reference value of the site boundary can be arbitrarily set in advance. If the estimated strength of the odor at the site boundary is equal to or less than the reference value of the site boundary, the process proceeds to S8, and if it exceeds the reference value of the site boundary, the process proceeds to S9.
  • the operation control unit 700 operates the ventilation unit 600 with the displacement calculated in S4, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110.
  • the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
  • the operation control unit 700 recalculates the displacement of the ventilation unit 600 so that the strength of the odor at the site boundary becomes equal to or less than the reference value of the site boundary.
  • the operation control unit 700 reduces the displacement of the ventilation unit 600 and performs the same calculation as in S6 using the reduced displacement, so that the estimated strength of the odor at the site boundary is less than the reference value of the site boundary.
  • the displacement of the ventilation unit 600 is obtained so as to be.
  • the operation control unit 700 operates the ventilation unit 600 with the displacement obtained by the recalculation in S9, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110.
  • the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
  • the operation control unit 700 outputs an alarm to the output unit to notify the operator that the strength of the odor inside the building 110 of the plant 100 exceeds the indoor standard value.
  • the operation control unit 700 indicates to the operator that the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500 exceeds the indoor reference value by the determination process in S2. Is displayed.
  • the alarm can be output to the output unit by any method such as a method of displaying characters on a monitor, a method of blinking or turning on a light, and a method of issuing a voice announcement.
  • the operation control unit 700 can operate the ventilation unit 600 optimally by repeating the operation control procedure of the ventilation unit 600 shown in the flowchart of FIG. 5 at regular intervals (for example, once an hour).
  • the blower provided in the ventilation unit 600 is preferably operated by inverter control, but may be operated by on / off control such that the odorous gas is discharged with the displacement calculated in S4 or S9.
  • the deodorizing device control system 10 can control the odor gas inside the building 110 of the plant 100 to be discharged to the outside of the building 110 in consideration of the external environment of the building 110 (for example, wind speed and wind direction). ,
  • the strength of the odor gas at the site boundary can be made less than the standard value of the site boundary. Therefore, the deodorizing device control system 10 according to the present embodiment can prevent the odor of the odorous gas from adversely affecting the living environment around the plant 100 even if the odorous gas is discharged from the building 110.
  • the deodorizing device control system 10 includes an odor generation estimation unit 500, which is an odor acquisition unit, and can estimate the strength of the odor inside the building 110 of the plant 100. Remoteization is possible. Conventionally, since it is difficult to constantly monitor the odor, the deodorizing device is often operated excessively so as not to give a strong odor to the inside and outside of the building 110. In this embodiment, the intensity of the generated odor is estimated, and the operation of the ventilation unit 600 is stopped or the ventilation unit 600 is discharged with an appropriate exhaust amount according to the estimated intensity of the odor. The ventilation unit 600 can be optimally operated, and the deodorizing device control system 10 can be operated in an energy-saving manner.
  • the devices and functions included in the deodorizing device control system 10 according to the present embodiment may be integrated in any combination. Further, the information acquisition unit 400, the odor generation estimation unit 500, and the operation control unit 700 may be installed inside the plant 100 or outside the plant 100.
  • the deodorizing device control system 10 according to the second embodiment of the present invention will be described.
  • the deodorizing device control system 10 according to the present embodiment has the same configuration as the deodorizing device control system 10 according to the first embodiment, but the deodorizing device control system 10 according to the first embodiment is provided with a ventilation unit 600 and a deodorizing unit as the deodorizing device. Is different.
  • the deodorizing unit reduces (or removes) the odor of the odorous gas when the deodorizing device control system 10 discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110.
  • the deodorizing device control system 10 according to the present embodiment will be mainly described as being different from the deodorizing device control system 10 according to the first embodiment.
  • FIG. 6 is a diagram showing the configuration of the deodorizing device control system 10 according to the present embodiment.
  • the deodorizing device control system 10 according to the present embodiment includes a deodorizing unit 800 in addition to the configuration of the deodorizing device control system 10 according to the first embodiment.
  • the deodorizing unit 800 is a device that reduces (or removes) the odor of the odorous gas by removing the odorous substance contained in the odorous gas discharged from the inside of the building 110 of the plant 100 to the outside of the building 110, and is a ventilation unit.
  • the deodorizing device is configured by the unit 600.
  • the deodorizing unit 800 can be provided with any configuration as long as the generated odorous substance can be removed, such as a filter provided with activated carbon, an ozone generator, and a scrubber. Further, the deodorizing unit 800 may reduce the odor from the odorous gas before flowing into the ventilation unit 600, or may reduce the odor from the odorous gas after flowing out from the ventilation unit 600. In this embodiment, the deodorizing unit 800 is configured to reduce the odor from the odorous gas before flowing into the ventilation unit 600.
  • the deodorizing device can also discharge the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 by bypassing the deodorizing unit 800. That is, the deodorizing device control system 10 according to the present embodiment discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 using only the ventilation unit 600 without reducing the odor at the deodorizing unit 800. You can also do it.
  • the deodorizing device is configured with a duct so that the odorous gas can be discharged by bypassing the deodorizing unit 800 without flowing to the deodorizing unit 800.
  • FIG. 7 is a flowchart showing a procedure in which the operation control unit 700 controls the operation of the ventilation unit 600 and the deodorization unit 800, which are the deodorizing devices in the present embodiment, in the present embodiment.
  • the operation control unit 700 controls the operation of the ventilation unit 600 and the deodorization unit 800 so that the odor intensity of the odorous gas discharged to the outside of the building 110 of the plant 100 is equal to or less than a predetermined reference value.
  • the operation control unit 700 provides information on the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500, as in the process in S1 of the first embodiment (FIG. 5). Obtained from the odor generation estimation unit 500.
  • the operation control unit 700 compares the strength of the odor acquired in S1 with the indoor reference value, as in the process in S2 of the first embodiment. If the strength of the acquired odor is equal to or less than the indoor standard value, the process proceeds to S23, and if the acquired odor intensity exceeds the indoor standard value, the process proceeds to S4.
  • the operation control unit 700 stops the operation of the ventilation unit 600 and the deodorizing unit 800.
  • the operation control unit 700 is inside the building 110 of the plant 100 based on the strength of the odor inside the building 110 of the plant 100 acquired in S1 and the indoor reference value, as in the process in S4 of the first embodiment.
  • the displacement of the ventilation unit 600 is calculated so that the strength of the odor is equal to or less than the indoor reference value.
  • the operation control unit 700 acquires information (at least wind speed and wind direction) about the external environment of the building 110 of the plant 100 from the information acquisition unit 400, as in the process in S5 of the first embodiment.
  • the operation control unit 700 is the same as the process in S6 of the first embodiment, from the displacement of the ventilation unit 600 calculated in S4 and the information about the external environment acquired in S5, the building 110 of the plant 100. By calculating the diffusion of the odorous gas discharged from the site, the strength of the odor at the boundary of the site is estimated.
  • the operation control unit 700 compares the strength of the odor at the site boundary estimated in S6 with the reference value of the site boundary, as in the process in S7 of Example 1. If the estimated strength of the odor at the site boundary is equal to or less than the reference value of the site boundary, the process proceeds to S28, and if it exceeds the reference value of the site boundary, the process proceeds to S31.
  • the operation control unit 700 discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 using only the ventilation unit 600 without reducing the odor by the deodorizing unit 800.
  • the operation control unit 700 operates the ventilation unit 600 with the displacement calculated in S4, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 by bypassing the deodorizing unit 800.
  • the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
  • the operation control unit 700 performs the same calculation as in S6, and when the deodorizing unit 800 operates to reduce the odor of the odorous gas inside the building 110 of the plant 100, the odor discharged from the building 110 Estimate the strength of the odor of gas at the boundary of the site.
  • the operation control unit 700 obtains and stores in advance the performance (deodorizing ability) of reducing the odor intensity of the deodorizing unit 800 when the deodorizing unit 800 operates.
  • the deodorizing ability of the deodorizing unit 800 is, for example, the degree of decrease in the odor intensity of the odorous gas flowing out of the deodorizing unit 800 with respect to the odor intensity of the odorous gas flowing into the deodorizing unit 800.
  • the operation control unit 700 uses the displacement of the ventilation unit 600 calculated in S4 and the information about the external environment acquired in S5, and the deodorizing unit 800 uses the deodorizing unit 800 to determine the strength of the odor gas inside the building 110 of the plant 100.
  • the deodorizing unit 800 uses the deodorizing unit 800 to determine the strength of the odor gas inside the building 110 of the plant 100.
  • the operation control unit 700 compares the strength of the odor at the site boundary estimated in S31 with the reference value of the site boundary, as in S7. If the strength of the odor at the site boundary when the deodorizing unit 800 is operated, which is estimated in S31, is less than or equal to the reference value of the site boundary, proceed to S33, and if it exceeds the reference value of the site boundary, go to S29. move on.
  • the operation control unit 700 operates the deodorizing unit 800, operates the ventilation unit 600 with the displacement calculated in S4, and allows the odorous gas inside the building 110 of the plant 100 to pass through the deodorizing unit 800 to the outside of the building 110. Displace in.
  • the deodorizing unit 800 reduces (or removes) the odor of the odorous gas discharged from the inside of the building 110 of the plant 100 to the outside of the building 110.
  • the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
  • the operation control unit 700 re-executes the displacement of the ventilation unit 600 so that the strength of the odor at the site boundary when the deodorizing unit 800 is operated, which is estimated in S31, is equal to or less than the reference value of the site boundary. calculate.
  • the operation control unit 700 reduces the displacement of the ventilation unit 600 and performs the same calculation as in S6 using the reduced displacement, so that the estimated strength of the odor at the site boundary is less than the reference value of the site boundary.
  • the displacement of the ventilation unit 600 is obtained so as to be.
  • the operation control unit 700 calculates the diffusion of the odorous gas discharged from the building 110 of the plant 100 in consideration of the fact that the deodorizing unit 800 reduces the odor intensity of the odorous gas inside the building 110 of the plant 100. I do.
  • the operation control unit 700 operates the deodorizing unit 800, operates the ventilation unit 600 with the exhaust amount obtained by the recalculation in S29, and passes the odorous gas inside the building 110 of the plant 100 through the deodorizing unit 800. It is discharged to the outside of the building 110.
  • the deodorizing unit 800 reduces (or removes) the odor of the odorous gas discharged from the inside of the building 110 of the plant 100 to the outside of the building 110.
  • the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
  • the operation control unit 700 issues an alarm to notify the operator that the strength of the odor inside the building 110 of the plant 100 exceeds the indoor reference value, as in the process in S11 of the first embodiment. Output to the output section.
  • the operation control unit 700 repeats the operation control procedure of the ventilation unit 600 and the deodorization unit 800 shown in the flowchart of FIG. 7 at regular intervals (for example, once an hour), so that the ventilation unit 600 is a deodorizing device. And the optimum operation of the deodorizing unit 800 is possible.
  • the deodorizing device includes the ventilation unit 600 and the deodorizing unit 800, thereby effectively reducing the odor intensity of the odorous gas discharged to the outside of the building 110 of the plant 100. be able to. Since the deodorizing unit 800 operates according to the strength of the odor of the discharged odorous gas, it is not necessary to operate the deodorizing unit 800 all the time, and the life of the deodorizing unit 800 can be extended. For example, if the deodorizing unit 800 is composed of a filter provided with activated carbon, the period until the activated carbon is replaced can be lengthened, and the life can be lengthened.
  • the deodorizing device control system 10 according to the third embodiment of the present invention will be described.
  • the deodorizing device control system 10 according to the present embodiment has the same configuration as the deodorizing device control system 10 according to the first embodiment, but does not include the monitoring control unit 200 and the odor generation estimation unit 500, and is inside the building 110 of the plant 100. It is different from the deodorizing device control system 10 according to the first embodiment in that it is provided with an odor sensor.
  • the odor sensor measures the strength of the odor inside the building 110 of the plant 100.
  • the deodorizing device control system 10 according to this embodiment is based on the information about the external environment of the building 110 of the plant 100 acquired by the external sensor 300 and the strength of the odor inside the building 110 of the plant 100 acquired by the odor sensor.
  • the ventilation unit 600 is operated and controlled.
  • FIG. 8 is a diagram showing the configuration of the deodorizing device control system 10 according to the present embodiment.
  • the deodorizing device control system 10 according to the present embodiment does not include the monitoring control unit 200 and the odor generation estimation unit 500 in the configuration of the deodorizing device control system 10 according to the first embodiment, and has an odor sensor 900 inside the building 110 of the plant 100. Be prepared.
  • the odor sensor 900 is an odor acquisition unit that measures and acquires the strength of the odor inside the building 110 of the plant 100.
  • any sensor can be used as long as it can measure and acquire the strength of the odor.
  • a semiconductor sensor that uses an oxidation-reduction reaction, an adsorption film that adsorbs odorous substances, and the like are used.
  • Chemical sensors, biosensors that utilize olfactory cells, and photoacoustic sensors that utilize the principle of photoacoustic spectroscopy can be used.
  • the odor sensor 900 can be used, for example, as a sensor capable of measuring the concentration of the odor-causing substances (for example, hydrogen sulfide). Sensors and ammonia sensors, etc.) can be used.
  • FIG. 9 is a flowchart showing a procedure in which the operation control unit 700 controls the operation of the ventilation unit 600, which is the deodorizing device in the present embodiment, in the present embodiment.
  • the operation control unit 700 controls the operation of the ventilation unit 600 so that the odor intensity of the odorous gas discharged to the outside of the building 110 of the plant 100 is equal to or less than a predetermined reference value.
  • FIG. 5 the points different from the operation control procedure (FIG. 5) of the operation control unit 700 in the first embodiment will be mainly described.
  • the operation control unit 700 acquires the strength of the odor inside the building 110 of the plant 100 from the odor sensor 900.
  • the odor sensor 900 measures and acquires the strength of the odor inside the building 110 of the plant 100.
  • the operation control unit 700 compares the strength of the odor acquired in S1 with the indoor reference value, as in the process in S2 of Example 1 (FIG. 5).
  • the odor intensity acquired in S1 is the odor intensity inside the building 110 of the plant 100 measured by the odor sensor 900. If the strength of the acquired odor is equal to or less than the indoor standard value, the process proceeds to S43, and if the acquired odor intensity exceeds the indoor standard value, the process proceeds to S4.
  • the operation control unit 700 reduces the displacement of the ventilation unit 600 when the ventilation unit 600 is operating.
  • the operation control unit 700 can reduce the displacement of the ventilation unit 600 according to the strength of the odor inside the building 110 of the plant 100 measured by the odor sensor 900.
  • the strength of the odor inside the building 110 of the plant 100 is actually measured by the odor sensor 900 instead of estimating it, so that the operation control unit 700 is the ventilation unit according to the strength of the odor.
  • the displacement of 600 can be finely controlled.
  • Subsequent processes S4-S11 perform the same processes as the processes S4-S11 in the first embodiment.
  • the deodorizing device control system 10 includes an odor sensor 900 which is an odor acquisition unit, it is possible to actually measure the odor strength inside the building 110 of the plant 100 instead of estimating it, and the measured odor.
  • the exhaust amount of the ventilation unit 600 By controlling the exhaust amount of the ventilation unit 600 according to the strength of the odor gas, the strength of the odor of the odorous gas discharged to the outside of the building 110 of the plant 100 can be effectively reduced, and the deodorizing device control can be performed. Energy-saving operation of the system 10 is possible.
  • the deodorizing device control system 10 can include a monitoring control unit 200 and an odor generation estimation unit 500, similarly to the deodorizing device control system 10 according to the first embodiment.
  • the operation control unit 700 compares the odor intensity actually measured by the odor sensor 900 with the odor intensity estimated by the odor generation estimation unit 500, and is strong.
  • the strength of the odor of the person is defined as the strength of the odor inside the building 110 of the plant 100. By doing so, it is possible to effectively reduce the influence of the odor gas discharged from the building 110 on the living environment around the plant 100.
  • the deodorizing device control system 10 may include a ventilation unit 600 and a deodorizing unit 800 as the deodorizing device, similarly to the deodorizing device control system 10 according to the second embodiment.
  • the present invention is not limited to the above embodiment, and various modifications are possible.
  • the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to the embodiment including all the described configurations.
  • 10 Deodorizing device control system, 100 ... Plant, 110 ... Building, 200 ... Monitoring control unit, 300 ... External sensor, 400 ... Information acquisition unit, 500 ... Smell generation estimation unit, 600 ... Ventilation unit, 700 ... Operation control unit, 800 ... Deodorizing part, 900 ... Odor sensor.

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Abstract

A deodorizing device control system (10) according to the present invention comprises: an odor acquisition unit (500) that acquires the strength of an odor in the interior of a building (110) in a plant (100); an external sensor (300) that measures the external environment of the building (110) and acquires information regarding the external environment; a deodorizing device (600) which is a device for evacuating malodorous gas in the interior of the building (110) to the exterior of the building (110); and an operation control unit (700) that uses the strength of the odor in the interior of the building (110) acquired by the odor acquisition unit (500) and the information regarding the external environment acquired by the external sensor (300) as a basis to control operation of the deodorizing device (600) so that the strength of the malodorous gas evacuated to the exterior of the building (110) becomes equal to or less than a preset reference value. The deodorizing device control system makes it possible to perform control for evacuating malodorous gas in the interior of a building in a plant to the exterior while taking into account the environment outside the building.

Description

脱臭装置制御システムDeodorizer control system
　本発明は、においの強さに応じて脱臭装置を制御するシステムに関する。 The present invention relates to a system that controls a deodorizing device according to the strength of an odor.
　化学プラント、電力プラント、上下水プラント、及びゴミ処理プラントなどのプラントでの維持管理業務は、例えば、通常は存在しない異音などを運転員が聴いたときに設備を停止するなど、運転員の五感と経験を頼りにして実施することがある。現状では、このような維持管理業務には、プラントが２４時間連続で操業していても、運転員を常時滞在させて対応していることが多い。しかし、人手が不足したときには、このような対応が困難になる可能性がある。 Maintenance work in plants such as chemical plants, electric power plants, water and sewage plants, and waste treatment plants involves, for example, stopping the equipment when the operator hears an abnormal noise that does not normally exist. It may be carried out by relying on the five senses and experience. At present, such maintenance work is often handled by having an operator stay at all times even if the plant is operating continuously for 24 hours. However, when there is a shortage of manpower, such a response may be difficult.
　人手が不足してもプラントの維持管理業務を継続するために、運転員の五感と経験をＩｏＴ及びＡＩ技術で代替することが進められている。例えば、運転員の視覚の代わりにカメラを利用し、カメラで撮影した画像や映像を処理して設備や製品の外観の変化を診断する技術がある。また、聴覚の代わりにマイクを利用し、マイクで収集した音データを処理して設備の異音を検知する技術がある。このような技術は、近年、ソリューションとして提供され始めている。 In order to continue the maintenance work of the plant even if there is a shortage of manpower, the five senses and experience of the operators are being replaced by IoT and AI technologies. For example, there is a technology that uses a camera instead of the operator's vision and processes images and videos taken by the camera to diagnose changes in the appearance of equipment and products. In addition, there is a technology that uses a microphone instead of hearing and processes the sound data collected by the microphone to detect abnormal noise in the equipment. Such technologies have begun to be offered as solutions in recent years.
　視覚や聴覚の他に運転員の嗅覚も、プラント内で発生する異臭（例えば、焦げ臭や悪臭などの臭気）の検知に活用されており重要である。においは、種類が多様であり、強さも様々に異なるため、視覚や聴覚と比較して代替が進んでいない分野である。プラントでの維持管理業務において、例えば、プラント内の設備に臭気センサや臭気物質を計測可能な濃度センサを設置し、これらのセンサを運転員の嗅覚の代替として活用する技術がある。 In addition to sight and hearing, the sense of smell of the operator is also important because it is used to detect offensive odors (for example, odors such as burnt odors and stink odors) generated in the plant. Smell is a field that has not been replaced by sight and hearing because of its variety and strength. In the maintenance work at the plant, for example, there is a technique of installing an odor sensor or a concentration sensor capable of measuring odorous substances in the equipment in the plant and utilizing these sensors as a substitute for the sense of smell of the operator.
　センサを用いてにおいを検知し、検知したデータを用いて脱臭装置や換気装置を制御する技術の例は、特許文献１－２に記載されている。特許文献１に記載された生ゴミ処理装置は、排気ガス中の臭気成分を排気する排気手段と、排気ガスの臭いを検知する臭いセンサと、排気ガスを脱臭する脱臭手段を備え、臭いセンサの検知結果に基づいて脱臭手段をオンにする。特許文献２に記載された脱臭制御システムは、臭気センサと、臭気ガスを脱臭する脱臭装置と、ダクトの通風量を制御するダンパと、送風機と備え、臭気センサが検出した臭気ガスの濃度に応じて、脱臭装置の起動及び停止を制御し、送風機の排気、吸気及び停止を制御し、ダンパの開閉を制御する。 An example of a technique of detecting an odor using a sensor and controlling a deodorizing device or a ventilation device using the detected data is described in Patent Document 1-2. The garbage disposal device described in Patent Document 1 includes an exhaust means for exhausting an odorous component in an exhaust gas, an odor sensor for detecting the odor of the exhaust gas, and a deodorizing means for deodorizing the exhaust gas. Turn on the deodorizing means based on the detection result. The deodorization control system described in Patent Document 2 is provided with an odor sensor, a deodorizing device for deodorizing odor gas, a damper for controlling the ventilation amount of a duct, and a blower, and corresponds to the concentration of odor gas detected by the odor sensor. It controls the start and stop of the deodorizing device, controls the exhaust, intake and stop of the blower, and controls the opening and closing of the damper.
特開２００３－３４０４１４号公報Japanese Patent Application Laid-Open No. 2003-340414 特開２０１３－１７９７６号公報Japanese Unexamined Patent Publication No. 2013-17976
　特許文献１－２に記載された技術などの従来の技術では、プラントの建屋の内部やガスの排気路に臭気センサを設置し、臭気センサが検知した臭気データを利用して脱臭装置や換気装置を制御する。従来の技術では、建屋の外部の環境を考慮せずに脱臭装置や換気装置を制御して、建屋の内部の臭気ガスを建屋の外部に排出する。外部の環境を考慮せずに建屋から臭気ガスを排出すると、においの強さが基準値を満たしていても、臭気がプラントの周囲の住宅などに届いて住環境に悪影響を与える可能性がある。 In the conventional technology such as the technology described in Patent Document 1-2, an odor sensor is installed inside a plant building or in a gas exhaust passage, and a deodorizing device or a ventilation device is used by using the odor data detected by the odor sensor. To control. In the conventional technology, the deodorizing device and the ventilation device are controlled without considering the environment outside the building, and the odorous gas inside the building is discharged to the outside of the building. If odor gas is emitted from the building without considering the external environment, even if the odor intensity meets the standard value, the odor may reach the houses around the plant and adversely affect the living environment. ..
　本発明の目的は、プラントの建屋の内部の臭気ガスを建屋の外部へ排出する制御を、建屋の外部の環境を考慮して実施できる脱臭装置制御システムを提供することである。 An object of the present invention is to provide a deodorizing device control system capable of controlling the odorous gas inside the plant building to be discharged to the outside of the building in consideration of the environment outside the building.
　本発明による脱臭装置制御システムは、プラントの建屋の内部のにおいの強さを取得するにおい取得部と、前記建屋の外部環境を計測して前記外部環境についての情報を取得する外部センサと、前記建屋の内部の臭気ガスを前記建屋の外部に排出するための装置である脱臭装置と、前記におい取得部が取得した前記建屋の内部のにおいの強さと、前記外部センサが取得した前記外部環境についての情報とに基づいて、前記建屋の外部に排出される前記臭気ガスのにおいの強さが予め定めた基準値以下となるように、前記脱臭装置の運転を制御する運転制御部とを備える。 The deodorizing device control system according to the present invention includes an odor acquisition unit that acquires the strength of the odor inside the plant building, an external sensor that measures the external environment of the building and acquires information about the external environment, and the above. About the deodorizing device which is a device for discharging the odor gas inside the building to the outside of the building, the strength of the odor inside the building acquired by the odor acquisition unit, and the external environment acquired by the external sensor. Based on the above information, the operation control unit for controlling the operation of the deodorizing device is provided so that the odor intensity of the odorous gas discharged to the outside of the building becomes equal to or less than a predetermined reference value.
　本発明によると、プラントの建屋の内部の臭気ガスを建屋の外部へ排出する制御を、建屋の外部の環境を考慮して実施できる脱臭装置制御システムを提供することができる。 According to the present invention, it is possible to provide a deodorizing device control system capable of controlling the odor gas inside the plant building to be discharged to the outside of the building in consideration of the environment outside the building.
本発明の実施例１による脱臭装置制御システムの構成例を示す図である。It is a figure which shows the structural example of the deodorizing apparatus control system according to Example 1 of this invention. においの原因物質である硫化水素の水中の濃度と、プラントの運転状態についての情報である処理水の酸化還元電位との関係の一例を示すグラフである。It is a graph which shows an example of the relationship between the concentration of hydrogen sulfide which is a causative substance of an odor in water, and the redox potential of treated water which is information about the operating state of a plant. 換気部の排気量とプラントの建屋の内部のにおいの強さとの関係の一例を示すグラフである。It is a graph which shows an example of the relationship between the displacement of a ventilation part and the strength of an odor inside a plant building. 敷地境界におけるにおいの強さと風向の関係の一例を示す図である。It is a figure which shows an example of the relationship between the strength of an odor and the wind direction at the boundary of a site. 実施例１において、運転制御部が脱臭装置である換気部を運転制御する手順を示すフローチャートである。In the first embodiment, it is a flowchart which shows the procedure which the operation control part controls the operation of the ventilation part which is a deodorizing device. 本発明の実施例２による脱臭装置制御システムの構成を示す図である。It is a figure which shows the structure of the deodorizing apparatus control system by Example 2 of this invention. 実施例２において、運転制御部が脱臭装置である換気部と脱臭部を運転制御する手順を示すフローチャートである。FIG. 2 is a flowchart showing a procedure in which the operation control unit controls the operation of the ventilation unit and the deodorization unit, which are deodorizing devices, in the second embodiment. 本発明の実施例３による脱臭装置制御システムの構成を示す図である。It is a figure which shows the structure of the deodorizing apparatus control system by Example 3 of this invention. 実施例３において、運転制御部が脱臭装置である換気部を運転制御する手順を示すフローチャートである。FIG. 3 is a flowchart showing a procedure in which the operation control unit controls the operation of the ventilation unit, which is a deodorizing device, in the third embodiment.
　本発明による脱臭装置制御システムは、プラントの建屋の内部のにおいの強さと、プラントの建屋の外部環境についての情報を用いて、プラントの建屋からの臭気ガスの排出を制御する。プラントの建屋の内部のにおいの強さは、におい取得部（例えば、におい発生推定部や臭気センサ）で取得する。プラントの建屋の外部環境についての情報（例えば、風速と風向）は、プラントの外部に設置されたセンサで計測して取得する。 The deodorizing device control system according to the present invention controls the emission of odorous gas from the plant building by using information on the strength of the odor inside the plant building and the external environment of the plant building. The strength of the odor inside the plant building is acquired by the odor acquisition unit (for example, the odor generation estimation unit or the odor sensor). Information about the external environment of the plant building (for example, wind speed and direction) is measured and acquired by sensors installed outside the plant.
　本発明による脱臭装置制御システムは、におい取得部でプラントの建屋の内部のにおいの強さを取得し、プラントの建屋の外部環境を計測して取得することで、プラントの建屋の内部の臭気ガスを建屋の外部へ排出する制御を建屋の外部環境を考慮して実施でき、においの強さと外部環境に応じた最適な運転ができる。また、本発明による脱臭装置制御システムは、におい取得部を用いてプラントの建屋の内部のにおいの強さを取得するので、制御の省人化及び遠隔化が可能である。 In the deodorizing device control system according to the present invention, the odor intensity inside the plant building is acquired by the odor acquisition unit, and the external environment of the plant building is measured and acquired to obtain the odor gas inside the plant building. Can be controlled in consideration of the external environment of the building, and the optimum operation can be performed according to the strength of the odor and the external environment. Further, since the deodorizing device control system according to the present invention acquires the strength of the odor inside the plant building by using the odor acquisition unit, it is possible to save labor and remote control.
　以下、本発明の実施例による脱臭装置制御システムを、図面を用いて説明する。なお、本明細書で用いる図面において、同一のまたは対応する構成要素には同一の符号を付け、これらの構成要素については繰り返しの説明を省略する場合がある。 Hereinafter, the deodorizing device control system according to the embodiment of the present invention will be described with reference to the drawings. In the drawings used in the present specification, the same or corresponding components may be designated by the same reference numerals, and repeated description of these components may be omitted.
　本発明の実施例１による脱臭装置制御システムを説明する。 The deodorizing device control system according to the first embodiment of the present invention will be described.
　図１は、本実施例による脱臭装置制御システムの構成を示す図である。脱臭装置制御システム１０は、プラント１００に設置され、監視制御部２００、外部センサ３００、情報取得部４００、におい発生推定部５００、換気部６００、及び運転制御部７００を備える。 FIG. 1 is a diagram showing a configuration of a deodorizing device control system according to this embodiment. The deodorizing device control system 10 is installed in the plant 100 and includes a monitoring control unit 200, an external sensor 300, an information acquisition unit 400, an odor generation estimation unit 500, a ventilation unit 600, and an operation control unit 700.
　監視制御部２００は、プラント１００の施設や装置を監視制御し、プラント１００の運転状態についての情報を取得する。 The monitoring and control unit 200 monitors and controls the facilities and equipment of the plant 100, and acquires information about the operating state of the plant 100.
　外部センサ３００は、プラント１００の外部に設置され、プラント１００の建屋１１０の外部環境を計測するセンサであり、プラント１００の建屋１１０の外部環境についての情報を取得する。 The external sensor 300 is a sensor installed outside the plant 100 and measures the external environment of the building 110 of the plant 100, and acquires information about the external environment of the building 110 of the plant 100.
　情報取得部４００は、監視制御部２００が得た、プラント１００の運転状態についての情報と、外部センサ３００が得た、プラント１００の建屋１１０の外部環境についての情報を取得する。 The information acquisition unit 400 acquires the information about the operating state of the plant 100 obtained by the monitoring and control unit 200 and the information about the external environment of the building 110 of the plant 100 obtained by the external sensor 300.
　におい発生推定部５００は、プラント１００の建屋１１０の内部のにおいの強さを取得するにおい取得部である。におい発生推定部５００は、監視制御部２００が取得したプラント１００の運転状態についての情報を情報取得部４００から取得し、プラント１００の運転状態についての情報からプラント１００の建屋１１０の内部のにおいの強さを推定して取得する。 The odor generation estimation unit 500 is an odor acquisition unit that acquires the strength of the odor inside the building 110 of the plant 100. The odor generation estimation unit 500 acquires information on the operating state of the plant 100 acquired by the monitoring and control unit 200 from the information acquisition unit 400, and from the information on the operating state of the plant 100, the odor inside the building 110 of the plant 100. Estimate and obtain strength.
　換気部６００は、ダクトと送風機を備え、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出するための装置であり、脱臭装置制御システム１０の脱臭装置を構成する。 The ventilation unit 600 is provided with a duct and a blower, and is a device for discharging the odorous gas inside the building 110 of the plant 100 to the outside of the building 110, and constitutes the deodorizing device of the deodorizing device control system 10.
　運転制御部７００は、におい発生推定部５００が取得したプラント１００の建屋１１０の内部のにおいの強さと、外部センサ３００が取得したプラント１００の建屋１１０の外部環境についての情報とに基づいて、プラント１００の建屋１１０の外部に排出される臭気ガスのにおいの強さが予め定めた基準値以下となるように、換気部６００の運転を制御する。運転制御部７００は、プラント１００の建屋１１０の外部環境についての情報を情報取得部４００から取得する。また、運転制御部７００は、出力部を備え、運転員に文字や音声でメッセージや警報を出力することができる。 The operation control unit 700 is based on the strength of the odor inside the building 110 of the plant 100 acquired by the odor generation estimation unit 500 and the information about the external environment of the building 110 of the plant 100 acquired by the external sensor 300. The operation of the ventilation unit 600 is controlled so that the odor intensity of the odorous gas discharged to the outside of the building 110 of 100 becomes equal to or less than a predetermined reference value. The operation control unit 700 acquires information about the external environment of the building 110 of the plant 100 from the information acquisition unit 400. Further, the operation control unit 700 includes an output unit, and can output a message or an alarm to the operator by characters or voice.
　監視制御部２００、外部センサ３００、情報取得部４００、におい発生推定部５００、換気部６００、及び運転制御部７００は、互いに通信を行って情報を送受信する。この通信には、無線ＬＡＮや有線ＬＡＮなど、任意の手段を用いることができる。 The monitoring control unit 200, the external sensor 300, the information acquisition unit 400, the odor generation estimation unit 500, the ventilation unit 600, and the operation control unit 700 communicate with each other to transmit and receive information. Any means such as a wireless LAN or a wired LAN can be used for this communication.
　情報取得部４００、におい発生推定部５００、及び運転制御部７００は、コンピュータで構成することができる。このコンピュータは、ＣＰＵと、メモリ及びハードディスクなどの記憶装置と、ネットワークインターフェースを備え、コンピュータに情報取得部４００、におい発生推定部５００、及び運転制御部７００を実現させるためのプログラムを格納している。 The information acquisition unit 400, the odor generation estimation unit 500, and the operation control unit 700 can be configured by a computer. This computer includes a CPU, a storage device such as a memory and a hard disk, and a network interface, and stores a program for realizing the information acquisition unit 400, the odor generation estimation unit 500, and the operation control unit 700 in the computer. ..
　プラント１００は、例えば、化学プラント、電力プラント、上下水プラント、及びゴミ処理プラントなどのプラントである。本実施例では、プラント１００が下水処理場である例を説明する。下水処理場は、下水道の汚水を浄化し、浄化した処理水を河川、湖沼または海へ放流する施設であり、複数の設備、例えば沈砂池、最初沈殿池、反応タンク、最終沈殿池、汚泥濃縮タンク、及び汚泥脱水設備などを備える。これらの設備での処理により、処理対象に含まれるにおいの原因物質が、飛沫に含まれて拡散したり、大気中へ放出されたりする。このとき、飛沫拡散するものや大気放出されるものには、においの原因物質の他にウイルスや細菌なども含まれる。このようなウイルスには、ノロウイルス及びコロナウイルスなど様々な種類がある。 The plant 100 is, for example, a plant such as a chemical plant, an electric power plant, a water and sewage plant, and a waste treatment plant. In this embodiment, an example in which the plant 100 is a sewage treatment plant will be described. A sewage treatment plant is a facility that purifies sewage from sewage and discharges the purified treated water to rivers, lakes or seas, and has multiple facilities such as sand basins, first sedimentation basins, reaction tanks, final sedimentation basins, and sludge concentration. Equipped with a tank and sludge dewatering equipment. Due to the treatment in these facilities, the odor-causing substances contained in the treatment target are contained in the droplets and diffused or released into the atmosphere. At this time, substances that diffuse in droplets and those that are released into the atmosphere include viruses and bacteria in addition to the substances that cause odors. There are various types of such viruses such as norovirus and coronavirus.
　においの原因物質は、主に硫化水素、メチルメルカプタン、硫化メチル、二硫化メチル、及びアンモニアなどである。下水処理場において、これらのにおいは、まとめて臭気として取り扱われ、例えば、敷地境界（下水処理場の敷地と下水処理場の外部との境界）に設定された臭気指数の基準値以上のにおいの強さで漏洩しないように管理される。また、ウイルスや細菌などへの対策として処理水を消毒している場合には、消毒に使用する塩素が塩素臭やカルキ臭などのにおいの原因になる。下水処理場では、このようなにおいも臭気として管理される。 The causative substances of odor are mainly hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide, and ammonia. In the sewage treatment plant, these odors are collectively treated as odors, for example, odors above the standard value of the odor index set at the site boundary (the boundary between the site of the sewage treatment plant and the outside of the sewage treatment plant). It is managed so that it does not leak due to its strength. In addition, when treated water is disinfected as a countermeasure against viruses and bacteria, chlorine used for disinfection causes odors such as chlorine odor and chlorine odor. At sewage treatment plants, such odors are also managed as odors.
　監視制御部２００は、プラント１００の運転状態を監視制御する装置であり、プロセスコントローラなどを備える。プラント１００の施設や装置には、多数のセンサが設置されており、これらのセンサによってプラント１００の運転状態が計測される。監視制御部２００は、これらのセンサの計測値からプラント１００の運転状態についての情報を取得する。 The monitoring and control unit 200 is a device for monitoring and controlling the operating state of the plant 100, and includes a process controller and the like. A large number of sensors are installed in the facilities and equipment of the plant 100, and the operating state of the plant 100 is measured by these sensors. The monitoring control unit 200 acquires information about the operating state of the plant 100 from the measured values of these sensors.
　監視制御部２００が取得するプラント１００の運転状態についての情報の例には、プラントの運転によって得られるデータやプラントの運転を制御するための信号が含まれる。本実施例では、プラント１００の運転状態についての情報の例には、水温、ｐＨ、酸化還元電位、ＴＯＣ（全有機炭素）、及び汚泥濃度などの処理水の水質データと、処理水の流量及びばっ気風量などの処理データと、薬剤の投入量及びバルブの開度などを示す制御信号の値が含まれる。監視制御部２００は、プラント１００に設置されたセンサから、プラント１００の運転状態についての情報として、例えば上記のデータと信号の値を取得する。 Examples of information about the operating state of the plant 100 acquired by the monitoring and control unit 200 include data obtained by the operation of the plant and signals for controlling the operation of the plant. In this embodiment, examples of information about the operating state of the plant 100 include water quality data of treated water such as water temperature, pH, oxidation-reduction potential, TOC (total organic carbon), and sludge concentration, and the flow rate of treated water and the flow rate of treated water. It includes processing data such as the amount of blast air, and the value of the control signal indicating the amount of the drug input and the opening degree of the valve. The monitoring control unit 200 acquires, for example, the above data and signal values as information about the operating state of the plant 100 from the sensors installed in the plant 100.
　外部センサ３００は、プラント１００の建屋１１０の外部環境を計測し、プラント１００の建屋１１０の外部環境についての情報を取得するセンサである。外部センサ３００は、プラント１００の建屋１１０の外部環境についての情報として、少なくとも風速と風向を計測して取得する。プラント１００の建屋１１０の外部環境である風速と風向は、においの原因物質の拡散に大きく影響する因子である。外部センサ３００は、風速計と風向計、または風向風速計を備えて風速と風向を計測し、風速と風向の情報を取得する。 The external sensor 300 is a sensor that measures the external environment of the building 110 of the plant 100 and acquires information about the external environment of the building 110 of the plant 100. The external sensor 300 measures and acquires at least the wind speed and the wind direction as information about the external environment of the building 110 of the plant 100. The wind speed and wind direction, which are the external environments of the building 110 of the plant 100, are factors that greatly affect the diffusion of odor-causing substances. The external sensor 300 includes an anemometer and an anemometer, or an anemometer, measures the wind speed and the wind direction, and acquires information on the wind speed and the wind direction.
　プラント１００の建屋１１０の外部環境についての情報には、風速と風向以外にも、例えば、湿度、気温、臭気、及び人物の有無を含めることができる。例えば、湿度が高いと空気中ににおいの原因物質が滞留しやすくなるので、湿度は、においの原因物質の拡散に影響を与える。外部センサ３００は、湿度計、温度計、臭気センサ、カメラ、及びマイクなどのうち少なくとも１つを備え、湿度、気温、臭気、及び人物の有無という情報を取得することができる。 Information about the external environment of the building 110 of the plant 100 can include, for example, humidity, temperature, odor, and the presence or absence of a person, in addition to the wind speed and direction. For example, when the humidity is high, the odor-causing substance tends to stay in the air, so the humidity affects the diffusion of the odor-causing substance. The external sensor 300 includes at least one of a hygrometer, a thermometer, an odor sensor, a camera, a microphone, and the like, and can acquire information on humidity, temperature, odor, and the presence or absence of a person.
　情報取得部４００は、監視制御部２００からプラント１００の運転状態についての情報を取得し、外部センサ３００からプラント１００の建屋１１０の外部環境についての情報を取得し、これらの情報を時系列データとして保存する。例えば、情報取得部４００は、これらの情報を１分間隔で取得して保存する。 The information acquisition unit 400 acquires information about the operating state of the plant 100 from the monitoring and control unit 200, acquires information about the external environment of the building 110 of the plant 100 from the external sensor 300, and uses these information as time-series data. save. For example, the information acquisition unit 400 acquires and stores such information at 1-minute intervals.
　におい発生推定部５００は、におい取得部であり、監視制御部２００が取得した情報を基にプラント１００の建屋１１０の内部のにおいの強さを推定して取得する。なお、においの強さには、臭気濃度、臭気指数、臭気強度、及び臭気センサで得られた臭気の数値などの指標のうち、任意の１つを用いることができる。 The odor generation estimation unit 500 is an odor acquisition unit, and estimates and acquires the strength of the odor inside the building 110 of the plant 100 based on the information acquired by the monitoring control unit 200. For the intensity of the odor, any one of the indexes such as the odor concentration, the odor index, the odor intensity, and the numerical value of the odor obtained by the odor sensor can be used.
　におい発生推定部５００は、監視制御部２００が取得したプラント１００の運転状態についての情報を利用して建屋１１０の内部のにおいの強さを推定するモデルを、予め求めて保存しておく。このモデルは、監視制御部２００が取得したプラント１００の運転状態についての情報と、建屋１１０の内部のにおいの強さとの関係を表すにおい推定モデルである。 The odor generation estimation unit 500 obtains and stores in advance a model for estimating the odor intensity inside the building 110 by using the information about the operating state of the plant 100 acquired by the monitoring control unit 200. This model is an odor estimation model that represents the relationship between the information about the operating state of the plant 100 acquired by the monitoring control unit 200 and the strength of the odor inside the building 110.
　におい発生推定部５００は、におい推定モデルを用いて、監視制御部２００が取得したプラント１００の運転状態についての情報から、プラント１００の建屋１１０の内部のにおいの強さを推定する。 The odor generation estimation unit 500 estimates the strength of the odor inside the building 110 of the plant 100 from the information on the operating state of the plant 100 acquired by the monitoring control unit 200 using the odor estimation model.
　例えば、におい発生推定部５００は、プラント１００の運転によって得られるデータ（例えば、処理水の水質データ）と、プラント１００の建屋１１０の内部のにおいの強さとの関係を表すにおい推定モデルを予め求めて保存しておき、このにおい推定モデルを用いて、プラント１００の運転によって得られるデータから、プラント１００の建屋１１０の内部のにおいの強さを推定する。 For example, the odor generation estimation unit 500 obtains in advance an odor estimation model that represents the relationship between the data obtained by the operation of the plant 100 (for example, the water quality data of the treated water) and the odor intensity inside the building 110 of the plant 100. Using this odor estimation model, the strength of the odor inside the building 110 of the plant 100 is estimated from the data obtained by the operation of the plant 100.
　におい推定モデルは、既存の手法を用いて構築して求めることができる。例えば、におい推定モデルは、監視制御部２００が取得したプラント１００の運転状態についての情報と、それぞれの運転状態に対して臭気センサで計測して得られた建屋１１０の内部のにおいの強さを用いて、構築することができる。また、におい推定モデルは、例えば、統計解析の１つである重回帰分析で、水質情報などを説明変数とし、においの強さを目的変数とした重回帰モデルを作成することで、構築することができる。また、におい推定モデルは、ニューラルネットワークやデータクラスタリング技術で機械学習させて作成することができる。におい推定モデルは、監視制御部２００が取得したプラント１００の運転状態についての情報から、プラント１００の建屋１１０の内部のにおいの強さを推定できるモデルであれば、どのようなモデルでもよく、任意の方法で構築してもよい。 The odor estimation model can be constructed and obtained using existing methods. For example, the odor estimation model uses information on the operating state of the plant 100 acquired by the monitoring and control unit 200 and the strength of the odor inside the building 110 obtained by measuring each operating state with an odor sensor. Can be used and constructed. An odor estimation model can be constructed, for example, by creating a multiple regression model with water quality information as an explanatory variable and odor intensity as an objective variable in multiple regression analysis, which is one of statistical analyzes. Can be done. In addition, the odor estimation model can be created by machine learning using a neural network or data clustering technology. The odor estimation model may be any model as long as it can estimate the strength of the odor inside the building 110 of the plant 100 from the information on the operating state of the plant 100 acquired by the monitoring control unit 200. It may be constructed by the method of.
　図２は、においの原因物質である硫化水素の水中の濃度と、プラント１００の運転状態についての情報である処理水の酸化還元電位との関係の一例を示すグラフである。縦軸は、硫化水素の濃度を示している。横軸は、酸化還元電位を示しており、右から左に向かって負の値が大きくなる。酸化還元電位が負に大きいほど、水中の硫化水素の濃度が大きく、大気中に放出される硫化水素の量が増加して、においの強さが強くなる。 FIG. 2 is a graph showing an example of the relationship between the concentration of hydrogen sulfide, which is a causative substance of odor, in water and the redox potential of treated water, which is information about the operating state of the plant 100. The vertical axis shows the concentration of hydrogen sulfide. The horizontal axis shows the redox potential, and the negative value increases from right to left. The larger the redox potential is, the higher the concentration of hydrogen sulfide in water, the greater the amount of hydrogen sulfide released into the atmosphere, and the stronger the odor.
　におい発生推定部５００は、例えば、図２に示すような処理水の酸化還元電位と水中の硫化水素の濃度との関係を取得し、この関係を統計解析または機械学習でモデル化して、におい推定モデルを構築することができる。このにおい推定モデルでは、処理水の酸化還元電位から、水中の硫化水素の濃度（すなわち、大気中に放出される硫化水素の量）を基にして、プラント１００の建屋１１０の内部のにおいの強さを推定できる。 The odor generation estimation unit 500 acquires, for example, the relationship between the redox potential of the treated water and the concentration of hydrogen sulfide in the water as shown in FIG. 2, and models this relationship by statistical analysis or machine learning to estimate the odor. You can build a model. In this odor estimation model, the strength of the odor inside the building 110 of the plant 100 is based on the concentration of hydrogen sulfide in the water (that is, the amount of hydrogen sulfide released into the atmosphere) from the redox potential of the treated water. Can be estimated.
　換気部６００は、脱臭装置制御システム１０の脱臭装置であり、ダクトと送風機を備え、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。送風機は、例えばインバータ制御により運転されるのが好ましい。 The ventilation unit 600 is a deodorizing device of the deodorizing device control system 10, includes a duct and a blower, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110. The blower is preferably operated by, for example, inverter control.
　運転制御部７００は、におい発生推定部５００が推定したプラント１００の建屋１１０の内部のにおいの強さと、外部センサ３００が取得したプラント１００の建屋１１０の外部環境についての情報と、換気部６００が送風機を稼働させたときの排気量に基づいて、換気部６００の運転を制御する。運転制御部７００は、送風機の運転の開始と停止を制御したり、送風機の送風量を制御したりすることで、換気部６００の排気量を制御することができる。換気部６００の排気量が大きいほど排気される臭気の量が多いため、建屋１１０の内部のにおいの強さが大きく低下する。 The operation control unit 700 includes information on the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500, the external environment of the building 110 of the plant 100 acquired by the external sensor 300, and the ventilation unit 600. The operation of the ventilation unit 600 is controlled based on the displacement when the blower is operated. The operation control unit 700 can control the exhaust amount of the ventilation unit 600 by controlling the start and stop of the operation of the blower and the amount of air blown by the blower. The larger the displacement of the ventilation unit 600, the larger the amount of odor exhausted, so that the strength of the odor inside the building 110 is greatly reduced.
　図３は、換気部６００の排気量Ｄとプラント１００の建屋１１０の内部のにおいの強さとの関係の一例を示すグラフである。図３では、においの強さを臭気指数Ｏ２で表している。縦軸は、建屋１１０の内部の臭気指数Ｏ２を示している。横軸は、換気部６００の排気量Ｄを示している。建屋１１０の内部で発生するにおいの強さ（例えば、臭気指数）が一定の場合では、臭気指数Ｏ２は、排気量Ｄが増えると減少する。 FIG. 3 is a graph showing an example of the relationship between the displacement D of the ventilation unit 600 and the strength of the odor inside the building 110 of the plant 100. In FIG. 3, the intensity of the odor is represented by the odor index O2. The vertical axis shows the odor index O2 inside the building 110. The horizontal axis shows the displacement D of the ventilation unit 600. When the intensity of the odor generated inside the building 110 (for example, the odor index) is constant, the odor index O2 decreases as the displacement D increases.
　換気部６００の送風機が稼働して排気したときの建屋１１０の内部の臭気指数Ｏ２は、換気部６００の排気量Ｄを用いて、公知の式（１）により推定できる。
Ｏ２＝α×Ｏ１／Ｄ・・・（１）
式（１）において、Ｏ１は、におい発生推定部５００が推定したにおいの強さ、すなわち、換気部６００が排気していないときの建屋１１０の内部の臭気指数である。αは、任意の係数である。 The odor index O2 inside the building 110 when the blower of the ventilation unit 600 is operated and exhausted can be estimated by the known equation (1) using the displacement D of the ventilation unit 600.
O2 = α × O1 / D ... (1)
In the formula (1), O1 is the intensity of the odor estimated by the odor generation estimation unit 500, that is, the odor index inside the building 110 when the ventilation unit 600 is not exhausting. α is an arbitrary coefficient.
　なお、式（１）ではにおいの強さを臭気指数で表したが、においの強さには、臭気濃度、臭気強度、及び臭気センサで得られた臭気の数値のうち、任意の１つを用いてもよい。においの強さには、プラント１００で管理しやすい、においの強さに関する指標を用いればよい。 In the formula (1), the odor intensity is expressed by the odor index, but the odor intensity can be any one of the odor concentration, the odor intensity, and the odor values obtained by the odor sensor. You may use it. For the odor intensity, an index related to the odor intensity, which is easy to manage in the plant 100, may be used.
　換気部６００によって、プラント１００の建屋１１０の外部に排出された臭気ガスは、大気拡散により拡散されて希釈される。本実施例による脱臭装置制御システム１０では、外部センサ３００が取得したプラント１００の建屋１１０の外部環境についての情報（風速と風向）を考慮して、プラント１００の建屋１１０から排出された臭気ガスの拡散計算を行うことで、建屋１１０の外部である敷地境界におけるにおいの強さを推測する。敷地境界とは、プラント１００の敷地とプラント１００の外部との境界である。臭気ガスの拡散計算では、例えば、プラント１００の建屋１１０から排出された臭気ガスの敷地境界におけるにおいの強さを、風によってにおいが拡散することを考慮して、既存の方法を用いて求める。 The odorous gas discharged to the outside of the building 110 of the plant 100 by the ventilation unit 600 is diffused and diluted by atmospheric dispersion. In the deodorizing device control system 10 according to the present embodiment, the odor gas discharged from the building 110 of the plant 100 is taken into consideration in consideration of the information (wind speed and wind direction) about the external environment of the building 110 of the plant 100 acquired by the external sensor 300. By performing the diffusion calculation, the strength of the odor at the site boundary outside the building 110 is estimated. The site boundary is the boundary between the site of the plant 100 and the outside of the plant 100. In the calculation of diffusion of odorous gas, for example, the intensity of the odor at the site boundary of the odorous gas discharged from the building 110 of the plant 100 is obtained by using an existing method in consideration of the diffusion of the odor by the wind.
　図４は、敷地境界におけるにおいの強さと風向の関係の一例を示す図である。図４では、においの強さを臭気指数で表している。また、図４では、排気地点からの距離が互いに等しい、風上にある敷地境界と風下にある敷地境界における臭気指数を比較している。排気地点からの距離が互いに等しくても、風下にある敷地境界での臭気指数は、風上にある敷地境界での臭気指数より大きい。すなわち、風下では、風上よりもにおいが強い。 FIG. 4 is a diagram showing an example of the relationship between the strength of odor and the wind direction at the boundary of the site. In FIG. 4, the intensity of odor is represented by an odor index. Further, FIG. 4 compares the odor indexes at the site boundary on the windward side and the site boundary on the leeward side, where the distances from the exhaust points are equal to each other. Even if the distances from the exhaust points are equal to each other, the odor index at the leeward site boundary is larger than the odor index at the leeward site boundary. That is, on the leeward side, the odor is stronger than on the upwind side.
　敷地境界における臭気指数は、換気部６００の排気量と排気地点における臭気指数だけでなく、風向に影響を受ける。すなわち、敷地境界における臭気指数は、図４に示すように、敷地境界が排気地点から風上にあるか風下にあるかによって異なる。また、敷地境界における臭気指数は、風速にも影響を受ける。 The odor index at the boundary of the site is affected not only by the displacement of the ventilation unit 600 and the odor index at the exhaust point, but also by the wind direction. That is, the odor index at the site boundary differs depending on whether the site boundary is upwind or leeward from the exhaust point, as shown in FIG. The odor index at the boundary of the site is also affected by the wind speed.
　このため、プラント１００の外部に与える影響を考慮して建屋１１０から臭気ガスを排出するには、プラント１００の建屋１１０の外部環境（例えば、風速と風向）を考慮して、建屋１１０から排出された臭気ガスの拡散計算を行い、敷地境界におけるにおいの強さを推測する必要がある。なお、本実施例では、拡散計算で算出するにおいの強さの指標として臭気指数を用いるが、においの強さの指標には、臭気指数に限らず任意の指標を用いることができる。 Therefore, in order to discharge the odorous gas from the building 110 in consideration of the influence on the outside of the plant 100, the odor gas is discharged from the building 110 in consideration of the external environment (for example, wind speed and wind direction) of the building 110 of the plant 100. It is necessary to calculate the diffusion of odorous gas and estimate the strength of the odor at the boundary of the site. In this embodiment, the odor index is used as an index of the odor intensity calculated by the diffusion calculation, but the odor intensity index is not limited to the odor index and any index can be used.
　図５は、本実施例において、運転制御部７００が本実施例での脱臭装置である換気部６００を運転制御する手順を示すフローチャートである。 FIG. 5 is a flowchart showing a procedure in which the operation control unit 700 controls the operation of the ventilation unit 600, which is the deodorizing device in the present embodiment, in the present embodiment.
　Ｓ１で、運転制御部７００は、におい発生推定部５００が推定したプラント１００の建屋１１０の内部のにおいの強さについての情報を、におい発生推定部５００から取得する。 In S1, the operation control unit 700 acquires information about the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500 from the odor generation estimation unit 500.
　Ｓ２で、運転制御部７００は、Ｓ１で取得したにおいの強さを、建屋１１０の内部のにおいの強さの基準値（以下、「屋内基準値」と称する）と比較する。屋内基準値は、予め任意に定めることができる。取得したにおいの強さが、屋内基準値以下の場合には、Ｓ３に進み、屋内基準値を超える場合には、Ｓ４に進む。 In S2, the operation control unit 700 compares the odor intensity acquired in S1 with the reference value of the odor intensity inside the building 110 (hereinafter referred to as "indoor reference value"). The indoor standard value can be arbitrarily set in advance. If the strength of the acquired odor is equal to or less than the indoor standard value, the process proceeds to S3, and if the acquired odor intensity exceeds the indoor standard value, the process proceeds to S4.
　Ｓ３で、運転制御部７００は、換気部６００が稼働している場合には、換気部６００の運転を停止する。 In S3, the operation control unit 700 stops the operation of the ventilation unit 600 when the ventilation unit 600 is operating.
　Ｓ４で、運転制御部７００は、Ｓ１で取得したプラント１００の建屋１１０の内部のにおいの強さと屋内基準値から、換気部６００の排気量を算出する。運転制御部７００は、換気部６００の排気量と、プラント１００の建屋１１０の内部のにおいの強さとの関係（例えば、図３と式（１））を、予め求めて保存している。運転制御部７００は、この関係に基づいて、プラント１００の建屋１１０の内部のにおいの強さが屋内基準値以下となるような、換気部６００の排気量を算出する。 In S4, the operation control unit 700 calculates the displacement of the ventilation unit 600 from the strength of the odor inside the building 110 of the plant 100 acquired in S1 and the indoor reference value. The operation control unit 700 obtains and stores in advance the relationship between the displacement of the ventilation unit 600 and the strength of the odor inside the building 110 of the plant 100 (for example, FIG. 3 and equation (1)). Based on this relationship, the operation control unit 700 calculates the displacement of the ventilation unit 600 so that the strength of the odor inside the building 110 of the plant 100 is equal to or less than the indoor reference value.
　Ｓ５で、運転制御部７００は、情報取得部４００からプラント１００の建屋１１０の外部環境についての情報（少なくとも風速と風向）を取得する。 In S5, the operation control unit 700 acquires information (at least wind speed and wind direction) about the external environment of the building 110 of the plant 100 from the information acquisition unit 400.
　Ｓ６で、運転制御部７００は、Ｓ４で算出した換気部６００の排気量と、Ｓ５で取得した外部環境についての情報とを用いて、プラント１００の建屋１１０から排出された臭気ガスの拡散計算を行うことで、敷地境界におけるにおいの強さを推測する。 In S6, the operation control unit 700 calculates the diffusion of the odorous gas discharged from the building 110 of the plant 100 by using the displacement of the ventilation unit 600 calculated in S4 and the information about the external environment acquired in S5. By doing so, the strength of the odor at the boundary of the site is estimated.
　Ｓ７で、運転制御部７００は、Ｓ６で推測した敷地境界におけるにおいの強さを、敷地境界でのにおいの強さの基準値（以下、「敷地境界の基準値」と称する）と比較する。敷地境界の基準値は、予め任意に定めることができる。推測した敷地境界におけるにおいの強さが、敷地境界の基準値以下の場合には、Ｓ８に進み、敷地境界の基準値を超える場合には、Ｓ９に進む。 In S7, the operation control unit 700 compares the odor intensity at the site boundary estimated in S6 with the reference value of the odor intensity at the site boundary (hereinafter referred to as "reference value of the site boundary"). The reference value of the site boundary can be arbitrarily set in advance. If the estimated strength of the odor at the site boundary is equal to or less than the reference value of the site boundary, the process proceeds to S8, and if it exceeds the reference value of the site boundary, the process proceeds to S9.
　Ｓ８で、運転制御部７００は、Ｓ４で算出した排気量で換気部６００を運転し、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。換気部６００は、送風機が運転制御部７００に制御されて排気量が制御され、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。 In S8, the operation control unit 700 operates the ventilation unit 600 with the displacement calculated in S4, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110. In the ventilation unit 600, the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
　Ｓ９で、運転制御部７００は、敷地境界におけるにおいの強さが敷地境界の基準値以下となるように、換気部６００の排気量を再計算する。運転制御部７００は、換気部６００の排気量を減らしていき、減らした排気量を用いてＳ６と同様の計算を行うことで、推測した敷地境界におけるにおいの強さが敷地境界の基準値以下となるような換気部６００の排気量を求める。 In S9, the operation control unit 700 recalculates the displacement of the ventilation unit 600 so that the strength of the odor at the site boundary becomes equal to or less than the reference value of the site boundary. The operation control unit 700 reduces the displacement of the ventilation unit 600 and performs the same calculation as in S6 using the reduced displacement, so that the estimated strength of the odor at the site boundary is less than the reference value of the site boundary. The displacement of the ventilation unit 600 is obtained so as to be.
　Ｓ１０で、運転制御部７００は、Ｓ９での再計算で求めた排気量で換気部６００を運転し、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。換気部６００は、送風機が運転制御部７００に制御されて排気量が制御され、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。 In S10, the operation control unit 700 operates the ventilation unit 600 with the displacement obtained by the recalculation in S9, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110. In the ventilation unit 600, the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
　Ｓ１１で、運転制御部７００は、プラント１００の建屋１１０の内部のにおいの強さが屋内基準値を超えていることを運転員に知らせる警報を、出力部に出力する。運転制御部７００は、Ｓ２での判定処理により、におい発生推定部５００が推定したプラント１００の建屋１１０の内部のにおいの強さが屋内基準値を超えているので、これを運転員に示す警報を表示する。警報は、文字をモニターに表示する方法、光を点滅または点灯させる方法、及び音声アナウンスを発する方法など、任意の方法で出力部に出力することができる。 In S11, the operation control unit 700 outputs an alarm to the output unit to notify the operator that the strength of the odor inside the building 110 of the plant 100 exceeds the indoor standard value. The operation control unit 700 indicates to the operator that the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500 exceeds the indoor reference value by the determination process in S2. Is displayed. The alarm can be output to the output unit by any method such as a method of displaying characters on a monitor, a method of blinking or turning on a light, and a method of issuing a voice announcement.
　運転制御部７００は、図５のフローチャートに示す換気部６００の運転制御の手順を、一定時間ごとに（例えば１時間に１回）繰り返し行うことで、換気部６００の最適運転が可能である。換気部６００が備える送風機は、インバータ制御により運転されるのが好ましいが、Ｓ４やＳ９で算出された排気量で臭気ガスを排出するようなオンオフ制御により運転されてもよい。 The operation control unit 700 can operate the ventilation unit 600 optimally by repeating the operation control procedure of the ventilation unit 600 shown in the flowchart of FIG. 5 at regular intervals (for example, once an hour). The blower provided in the ventilation unit 600 is preferably operated by inverter control, but may be operated by on / off control such that the odorous gas is discharged with the displacement calculated in S4 or S9.
　本実施例による脱臭装置制御システム１０は、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部へ排出する制御を、建屋１１０の外部環境（例えば、風速と風向）を考慮して実施でき、敷地境界における臭気ガスのにおいの強さを敷地境界の基準値以下にすることができる。このため、本実施例による脱臭装置制御システム１０は、建屋１１０から臭気ガスを排出しても、臭気ガスのにおいがプラント１００の周囲の住環境に悪影響を与えるのを防止することができる。 The deodorizing device control system 10 according to the present embodiment can control the odor gas inside the building 110 of the plant 100 to be discharged to the outside of the building 110 in consideration of the external environment of the building 110 (for example, wind speed and wind direction). , The strength of the odor gas at the site boundary can be made less than the standard value of the site boundary. Therefore, the deodorizing device control system 10 according to the present embodiment can prevent the odor of the odorous gas from adversely affecting the living environment around the plant 100 even if the odorous gas is discharged from the building 110.
　本実施例による脱臭装置制御システム１０では、におい取得部であるにおい発生推定部５００を備え、プラント１００の建屋１１０の内部のにおいの強さを推定することができるので、制御の省人化及び遠隔化が可能である。従来は、においを常時監視するのが難しいため、強いにおいを建屋１１０の内外に与えないように脱臭装置を過剰に運転することが多い。本実施例では、発生するにおいの強さを推定し、推定したにおいの強さに応じて、換気部６００の運転を停止したり、適切な排気量で臭気ガスを排出するように換気部６００を制御したりするので、換気部６００の最適運転が可能であり、脱臭装置制御システム１０の省エネ運転が可能である。 The deodorizing device control system 10 according to the present embodiment includes an odor generation estimation unit 500, which is an odor acquisition unit, and can estimate the strength of the odor inside the building 110 of the plant 100. Remoteization is possible. Conventionally, since it is difficult to constantly monitor the odor, the deodorizing device is often operated excessively so as not to give a strong odor to the inside and outside of the building 110. In this embodiment, the intensity of the generated odor is estimated, and the operation of the ventilation unit 600 is stopped or the ventilation unit 600 is discharged with an appropriate exhaust amount according to the estimated intensity of the odor. The ventilation unit 600 can be optimally operated, and the deodorizing device control system 10 can be operated in an energy-saving manner.
　なお、本実施例による脱臭装置制御システム１０が備える装置や機能は、任意の組合せで一体化されてもよい。また、情報取得部４００、におい発生推定部５００、及び運転制御部７００は、プラント１００の内部に設置されていても、プラント１００の外部に設置されていてもよい。 The devices and functions included in the deodorizing device control system 10 according to the present embodiment may be integrated in any combination. Further, the information acquisition unit 400, the odor generation estimation unit 500, and the operation control unit 700 may be installed inside the plant 100 or outside the plant 100.
　本発明の実施例２による脱臭装置制御システム１０を説明する。本実施例による脱臭装置制御システム１０は、実施例１による脱臭装置制御システム１０と同様の構成を備えるが、脱臭装置として換気部６００と脱臭部を備える点が実施例１による脱臭装置制御システム１０と異なる。脱臭部は、脱臭装置制御システム１０がプラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出するときに、臭気ガスのにおいを減少させる（または除去する）。 The deodorizing device control system 10 according to the second embodiment of the present invention will be described. The deodorizing device control system 10 according to the present embodiment has the same configuration as the deodorizing device control system 10 according to the first embodiment, but the deodorizing device control system 10 according to the first embodiment is provided with a ventilation unit 600 and a deodorizing unit as the deodorizing device. Is different. The deodorizing unit reduces (or removes) the odor of the odorous gas when the deodorizing device control system 10 discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110.
　以下、本実施例による脱臭装置制御システム１０について、実施例１による脱臭装置制御システム１０と異なる点を主に説明する。 Hereinafter, the deodorizing device control system 10 according to the present embodiment will be mainly described as being different from the deodorizing device control system 10 according to the first embodiment.
　図６は、本実施例による脱臭装置制御システム１０の構成を示す図である。本実施例による脱臭装置制御システム１０は、実施例１による脱臭装置制御システム１０の構成に加えて、脱臭部８００を備える。 FIG. 6 is a diagram showing the configuration of the deodorizing device control system 10 according to the present embodiment. The deodorizing device control system 10 according to the present embodiment includes a deodorizing unit 800 in addition to the configuration of the deodorizing device control system 10 according to the first embodiment.
　脱臭部８００は、プラント１００の建屋１１０の内部から建屋１１０の外部に排出される臭気ガスに含まれる臭気物質を除去して、臭気ガスのにおいを減少させる（または除去する）装置であり、換気部６００とで脱臭装置を構成する。脱臭部８００は、活性炭を備えたフィルタ、オゾン発生装置、及びスクラバーなど、発生した臭気物質を除去できれば任意の構成を備えることができる。また、脱臭部８００は、換気部６００に流入する前の臭気ガスからにおいを減少させてもよく、換気部６００から流出した後の臭気ガスからにおいを減少させてもよい。本実施例では、脱臭部８００は、換気部６００に流入する前の臭気ガスからにおいを減少させるように構成されている。 The deodorizing unit 800 is a device that reduces (or removes) the odor of the odorous gas by removing the odorous substance contained in the odorous gas discharged from the inside of the building 110 of the plant 100 to the outside of the building 110, and is a ventilation unit. The deodorizing device is configured by the unit 600. The deodorizing unit 800 can be provided with any configuration as long as the generated odorous substance can be removed, such as a filter provided with activated carbon, an ozone generator, and a scrubber. Further, the deodorizing unit 800 may reduce the odor from the odorous gas before flowing into the ventilation unit 600, or may reduce the odor from the odorous gas after flowing out from the ventilation unit 600. In this embodiment, the deodorizing unit 800 is configured to reduce the odor from the odorous gas before flowing into the ventilation unit 600.
　本実施例による脱臭装置制御システム１０では、脱臭装置は、プラント１００の建屋１１０の内部の臭気ガスを、脱臭部８００をバイパスさせて建屋１１０の外部に排出することもできる。すなわち、本実施例による脱臭装置制御システム１０は、プラント１００の建屋１１０の内部の臭気ガスを、脱臭部８００でにおいを減少させずに、換気部６００のみを用いて建屋１１０の外部に排出することもできる。脱臭装置は、臭気ガスが脱臭部８００に流れずに脱臭部８００をバイパスして排出できるように、ダクトが構成されている。 In the deodorizing device control system 10 according to the present embodiment, the deodorizing device can also discharge the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 by bypassing the deodorizing unit 800. That is, the deodorizing device control system 10 according to the present embodiment discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 using only the ventilation unit 600 without reducing the odor at the deodorizing unit 800. You can also do it. The deodorizing device is configured with a duct so that the odorous gas can be discharged by bypassing the deodorizing unit 800 without flowing to the deodorizing unit 800.
　図７は、本実施例において、運転制御部７００が本実施例での脱臭装置である換気部６００と脱臭部８００を運転制御する手順を示すフローチャートである。運転制御部７００は、プラント１００の建屋１１０の外部に排出される臭気ガスのにおいの強さが予め定めた基準値以下となるように、換気部６００と脱臭部８００の運転を制御する。 FIG. 7 is a flowchart showing a procedure in which the operation control unit 700 controls the operation of the ventilation unit 600 and the deodorization unit 800, which are the deodorizing devices in the present embodiment, in the present embodiment. The operation control unit 700 controls the operation of the ventilation unit 600 and the deodorization unit 800 so that the odor intensity of the odorous gas discharged to the outside of the building 110 of the plant 100 is equal to or less than a predetermined reference value.
　Ｓ１で、運転制御部７００は、実施例１のＳ１での処理（図５）と同様に、におい発生推定部５００が推定したプラント１００の建屋１１０の内部のにおいの強さについての情報を、におい発生推定部５００から取得する。 In S1, the operation control unit 700 provides information on the strength of the odor inside the building 110 of the plant 100 estimated by the odor generation estimation unit 500, as in the process in S1 of the first embodiment (FIG. 5). Obtained from the odor generation estimation unit 500.
　Ｓ２で、運転制御部７００は、実施例１のＳ２での処理と同様に、Ｓ１で取得したにおいの強さを屋内基準値と比較する。取得したにおいの強さが、屋内基準値以下の場合には、Ｓ２３に進み、屋内基準値を超える場合には、Ｓ４に進む。 In S2, the operation control unit 700 compares the strength of the odor acquired in S1 with the indoor reference value, as in the process in S2 of the first embodiment. If the strength of the acquired odor is equal to or less than the indoor standard value, the process proceeds to S23, and if the acquired odor intensity exceeds the indoor standard value, the process proceeds to S4.
　Ｓ２３で、運転制御部７００は、換気部６００と脱臭部８００が稼働している場合には、換気部６００と脱臭部８００の運転を停止する。 In S23, when the ventilation unit 600 and the deodorizing unit 800 are operating, the operation control unit 700 stops the operation of the ventilation unit 600 and the deodorizing unit 800.
　Ｓ４で、運転制御部７００は、実施例１のＳ４での処理と同様に、Ｓ１で取得したプラント１００の建屋１１０の内部のにおいの強さと屋内基準値から、プラント１００の建屋１１０の内部のにおいの強さが屋内基準値以下となるような、換気部６００の排気量を算出する。 In S4, the operation control unit 700 is inside the building 110 of the plant 100 based on the strength of the odor inside the building 110 of the plant 100 acquired in S1 and the indoor reference value, as in the process in S4 of the first embodiment. The displacement of the ventilation unit 600 is calculated so that the strength of the odor is equal to or less than the indoor reference value.
　Ｓ５で、運転制御部７００は、実施例１のＳ５での処理と同様に、情報取得部４００からプラント１００の建屋１１０の外部環境についての情報（少なくとも風速と風向）を取得する。 In S5, the operation control unit 700 acquires information (at least wind speed and wind direction) about the external environment of the building 110 of the plant 100 from the information acquisition unit 400, as in the process in S5 of the first embodiment.
　Ｓ６で、運転制御部７００は、実施例１のＳ６での処理と同様に、Ｓ４で算出した換気部６００の排気量と、Ｓ５で取得した外部環境についての情報とから、プラント１００の建屋１１０から排出された臭気ガスの拡散計算を行うことで、敷地境界におけるにおいの強さを推測する。 In S6, the operation control unit 700 is the same as the process in S6 of the first embodiment, from the displacement of the ventilation unit 600 calculated in S4 and the information about the external environment acquired in S5, the building 110 of the plant 100. By calculating the diffusion of the odorous gas discharged from the site, the strength of the odor at the boundary of the site is estimated.
　Ｓ７で、運転制御部７００は、実施例１のＳ７での処理と同様に、Ｓ６で推測した敷地境界におけるにおいの強さを、敷地境界の基準値と比較する。推測した敷地境界におけるにおいの強さが、敷地境界の基準値以下の場合には、Ｓ２８に進み、敷地境界の基準値を超える場合には、Ｓ３１に進む。 In S7, the operation control unit 700 compares the strength of the odor at the site boundary estimated in S6 with the reference value of the site boundary, as in the process in S7 of Example 1. If the estimated strength of the odor at the site boundary is equal to or less than the reference value of the site boundary, the process proceeds to S28, and if it exceeds the reference value of the site boundary, the process proceeds to S31.
　Ｓ２８で、運転制御部７００は、プラント１００の建屋１１０の内部の臭気ガスを、脱臭部８００でにおいを減少させずに、換気部６００のみを用いて建屋１１０の外部に排出する。運転制御部７００は、Ｓ４で算出した排気量で換気部６００を運転し、プラント１００の建屋１１０の内部の臭気ガスを、脱臭部８００をバイパスして建屋１１０の外部に排出する。換気部６００は、送風機が運転制御部７００に制御されて排気量が制御され、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。 In S28, the operation control unit 700 discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 using only the ventilation unit 600 without reducing the odor by the deodorizing unit 800. The operation control unit 700 operates the ventilation unit 600 with the displacement calculated in S4, and discharges the odorous gas inside the building 110 of the plant 100 to the outside of the building 110 by bypassing the deodorizing unit 800. In the ventilation unit 600, the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
　Ｓ３１で、運転制御部７００は、Ｓ６と同様の計算を行い、脱臭部８００が稼働してプラント１００の建屋１１０の内部の臭気ガスのにおいを減少させたときに、建屋１１０から排出された臭気ガスの、敷地境界におけるにおいの強さを推測する。運転制御部７００は、脱臭部８００が稼働したときの脱臭部８００のにおいの強さを減少させる性能（脱臭能力）を、予め求めて保存している。脱臭部８００の脱臭能力とは、例えば、脱臭部８００に流入する臭気ガスのにおいの強さに対する、脱臭部８００から流出する臭気ガスのにおいの強さの減少度である。 In S31, the operation control unit 700 performs the same calculation as in S6, and when the deodorizing unit 800 operates to reduce the odor of the odorous gas inside the building 110 of the plant 100, the odor discharged from the building 110 Estimate the strength of the odor of gas at the boundary of the site. The operation control unit 700 obtains and stores in advance the performance (deodorizing ability) of reducing the odor intensity of the deodorizing unit 800 when the deodorizing unit 800 operates. The deodorizing ability of the deodorizing unit 800 is, for example, the degree of decrease in the odor intensity of the odorous gas flowing out of the deodorizing unit 800 with respect to the odor intensity of the odorous gas flowing into the deodorizing unit 800.
　運転制御部７００は、Ｓ４で算出した換気部６００の排気量と、Ｓ５で取得した外部環境についての情報とを用い、脱臭部８００によってプラント１００の建屋１１０の内部の臭気ガスのにおいの強さが減少したことを考慮して、プラント１００の建屋１１０から排出された臭気ガスの拡散計算を行うことで、脱臭部８００が稼働したときの敷地境界におけるにおいの強さを推測する。 The operation control unit 700 uses the displacement of the ventilation unit 600 calculated in S4 and the information about the external environment acquired in S5, and the deodorizing unit 800 uses the deodorizing unit 800 to determine the strength of the odor gas inside the building 110 of the plant 100. By calculating the diffusion of the odorous gas discharged from the building 110 of the plant 100 in consideration of the decrease in the odor, the strength of the odor at the boundary of the site when the deodorizing unit 800 is operated is estimated.
　Ｓ３２で、運転制御部７００は、Ｓ７と同様に、Ｓ３１で推測した敷地境界におけるにおいの強さを、敷地境界の基準値と比較する。Ｓ３１で推測した、脱臭部８００が稼働したときの敷地境界におけるにおいの強さが、敷地境界の基準値以下の場合には、Ｓ３３に進み、敷地境界の基準値を超える場合には、Ｓ２９に進む。 In S32, the operation control unit 700 compares the strength of the odor at the site boundary estimated in S31 with the reference value of the site boundary, as in S7. If the strength of the odor at the site boundary when the deodorizing unit 800 is operated, which is estimated in S31, is less than or equal to the reference value of the site boundary, proceed to S33, and if it exceeds the reference value of the site boundary, go to S29. move on.
　Ｓ３３で、運転制御部７００は、脱臭部８００を稼働させ、Ｓ４で算出した排気量で換気部６００を運転し、プラント１００の建屋１１０の内部の臭気ガスを、脱臭部８００を通して建屋１１０の外部に排出する。脱臭部８００は、プラント１００の建屋１１０の内部から建屋１１０の外部に排出される臭気ガスのにおいを減少させる（または除去する）。換気部６００は、送風機が運転制御部７００に制御されて排気量が制御され、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。 In S33, the operation control unit 700 operates the deodorizing unit 800, operates the ventilation unit 600 with the displacement calculated in S4, and allows the odorous gas inside the building 110 of the plant 100 to pass through the deodorizing unit 800 to the outside of the building 110. Displace in. The deodorizing unit 800 reduces (or removes) the odor of the odorous gas discharged from the inside of the building 110 of the plant 100 to the outside of the building 110. In the ventilation unit 600, the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
　Ｓ２９で、運転制御部７００は、Ｓ３１で推測した、脱臭部８００が稼働したときの敷地境界におけるにおいの強さが、敷地境界の基準値以下となるように、換気部６００の排気量を再計算する。運転制御部７００は、換気部６００の排気量を減らしていき、減らした排気量を用いてＳ６と同様の計算を行うことで、推測した敷地境界におけるにおいの強さが敷地境界の基準値以下となるような換気部６００の排気量を求める。但し、運転制御部７００は、脱臭部８００によってプラント１００の建屋１１０の内部の臭気ガスのにおいの強さが減少したことを考慮して、プラント１００の建屋１１０から排出された臭気ガスの拡散計算を行う。 In S29, the operation control unit 700 re-executes the displacement of the ventilation unit 600 so that the strength of the odor at the site boundary when the deodorizing unit 800 is operated, which is estimated in S31, is equal to or less than the reference value of the site boundary. calculate. The operation control unit 700 reduces the displacement of the ventilation unit 600 and performs the same calculation as in S6 using the reduced displacement, so that the estimated strength of the odor at the site boundary is less than the reference value of the site boundary. The displacement of the ventilation unit 600 is obtained so as to be. However, the operation control unit 700 calculates the diffusion of the odorous gas discharged from the building 110 of the plant 100 in consideration of the fact that the deodorizing unit 800 reduces the odor intensity of the odorous gas inside the building 110 of the plant 100. I do.
　Ｓ３０で、運転制御部７００は、脱臭部８００を稼働させ、Ｓ２９での再計算で求めた排気量で換気部６００を運転し、プラント１００の建屋１１０の内部の臭気ガスを、脱臭部８００を通して建屋１１０の外部に排出する。脱臭部８００は、プラント１００の建屋１１０の内部から建屋１１０の外部に排出される臭気ガスのにおいを減少させる（または除去する）。換気部６００は、送風機が運転制御部７００に制御されて排気量が制御され、プラント１００の建屋１１０の内部の臭気ガスを建屋１１０の外部に排出する。 In S30, the operation control unit 700 operates the deodorizing unit 800, operates the ventilation unit 600 with the exhaust amount obtained by the recalculation in S29, and passes the odorous gas inside the building 110 of the plant 100 through the deodorizing unit 800. It is discharged to the outside of the building 110. The deodorizing unit 800 reduces (or removes) the odor of the odorous gas discharged from the inside of the building 110 of the plant 100 to the outside of the building 110. In the ventilation unit 600, the blower is controlled by the operation control unit 700 to control the displacement, and the odorous gas inside the building 110 of the plant 100 is discharged to the outside of the building 110.
　Ｓ１１で、運転制御部７００は、実施例１のＳ１１での処理と同様に、プラント１００の建屋１１０の内部のにおいの強さが屋内基準値を超えていることを運転員に知らせる警報を、出力部に出力する。 In S11, the operation control unit 700 issues an alarm to notify the operator that the strength of the odor inside the building 110 of the plant 100 exceeds the indoor reference value, as in the process in S11 of the first embodiment. Output to the output section.
　運転制御部７００は、図７のフローチャートに示す換気部６００と脱臭部８００の運転制御の手順を、一定時間ごとに（例えば１時間に１回）繰り返し行うことで、脱臭装置である換気部６００と脱臭部８００の最適運転が可能である。 The operation control unit 700 repeats the operation control procedure of the ventilation unit 600 and the deodorization unit 800 shown in the flowchart of FIG. 7 at regular intervals (for example, once an hour), so that the ventilation unit 600 is a deodorizing device. And the optimum operation of the deodorizing unit 800 is possible.
　本実施例による脱臭装置制御システム１０は、脱臭装置が換気部６００と脱臭部８００を備えることで、プラント１００の建屋１１０の外部に排出される臭気ガスのにおいの強さを効果的に減少させることができる。脱臭部８００は、排出される臭気ガスのにおいの強さに応じて稼働するので、常時稼働する必要がなく、長寿命化が可能である。例えば、脱臭部８００が活性炭を備えたフィルタで構成されていると、活性炭を交換するまでの期間を長くすることができ、寿命を長くすることができる。 In the deodorizing device control system 10 according to the present embodiment, the deodorizing device includes the ventilation unit 600 and the deodorizing unit 800, thereby effectively reducing the odor intensity of the odorous gas discharged to the outside of the building 110 of the plant 100. be able to. Since the deodorizing unit 800 operates according to the strength of the odor of the discharged odorous gas, it is not necessary to operate the deodorizing unit 800 all the time, and the life of the deodorizing unit 800 can be extended. For example, if the deodorizing unit 800 is composed of a filter provided with activated carbon, the period until the activated carbon is replaced can be lengthened, and the life can be lengthened.
　本発明の実施例３による脱臭装置制御システム１０を説明する。本実施例による脱臭装置制御システム１０は、実施例１による脱臭装置制御システム１０と同様の構成を備えるが、監視制御部２００とにおい発生推定部５００を備えず、プラント１００の建屋１１０の内部に臭気センサを備える点が実施例１による脱臭装置制御システム１０と異なる。臭気センサは、プラント１００の建屋１１０の内部のにおいの強さを計測する。本実施例による脱臭装置制御システム１０は、外部センサ３００が取得したプラント１００の建屋１１０の外部環境についての情報と、臭気センサが取得したプラント１００の建屋１１０の内部のにおいの強さを基に、換気部６００を運転制御する。 The deodorizing device control system 10 according to the third embodiment of the present invention will be described. The deodorizing device control system 10 according to the present embodiment has the same configuration as the deodorizing device control system 10 according to the first embodiment, but does not include the monitoring control unit 200 and the odor generation estimation unit 500, and is inside the building 110 of the plant 100. It is different from the deodorizing device control system 10 according to the first embodiment in that it is provided with an odor sensor. The odor sensor measures the strength of the odor inside the building 110 of the plant 100. The deodorizing device control system 10 according to this embodiment is based on the information about the external environment of the building 110 of the plant 100 acquired by the external sensor 300 and the strength of the odor inside the building 110 of the plant 100 acquired by the odor sensor. , The ventilation unit 600 is operated and controlled.
　図８は、本実施例による脱臭装置制御システム１０の構成を示す図である。本実施例による脱臭装置制御システム１０は、実施例１による脱臭装置制御システム１０の構成において、監視制御部２００とにおい発生推定部５００を備えず、プラント１００の建屋１１０の内部に臭気センサ９００を備える。 FIG. 8 is a diagram showing the configuration of the deodorizing device control system 10 according to the present embodiment. The deodorizing device control system 10 according to the present embodiment does not include the monitoring control unit 200 and the odor generation estimation unit 500 in the configuration of the deodorizing device control system 10 according to the first embodiment, and has an odor sensor 900 inside the building 110 of the plant 100. Be prepared.
　臭気センサ９００は、プラント１００の建屋１１０の内部のにおいの強さを計測して取得するにおい取得部である。臭気センサ９００は、においの強さを計測して取得できるセンサであれば任意のセンサを用いることができ、例えば、酸化還元反応を利用する半導体式センサ、臭気物質が吸着する吸着膜などを利用する化学式センサ、嗅覚細胞を利用するバイオ式センサ、及び光音響分光の原理を利用する光音響式センサなどを用いることができる。また、プラント１００が下水処理場である場合には、主なにおいの原因物質が特定されているため、臭気センサ９００には、例えば、においの原因物質の濃度を計測できるセンサ（例えば、硫化水素センサとアンモニアセンサなど）を用いることができる。 The odor sensor 900 is an odor acquisition unit that measures and acquires the strength of the odor inside the building 110 of the plant 100. As the odor sensor 900, any sensor can be used as long as it can measure and acquire the strength of the odor. For example, a semiconductor sensor that uses an oxidation-reduction reaction, an adsorption film that adsorbs odorous substances, and the like are used. Chemical sensors, biosensors that utilize olfactory cells, and photoacoustic sensors that utilize the principle of photoacoustic spectroscopy can be used. Further, when the plant 100 is a sewage treatment plant, since the main odor-causing substances are specified, the odor sensor 900 can be used, for example, as a sensor capable of measuring the concentration of the odor-causing substances (for example, hydrogen sulfide). Sensors and ammonia sensors, etc.) can be used.
　図９は、本実施例において、運転制御部７００が本実施例での脱臭装置である換気部６００を運転制御する手順を示すフローチャートである。運転制御部７００は、プラント１００の建屋１１０の外部に排出される臭気ガスのにおいの強さが予め定めた基準値以下となるように、換気部６００の運転を制御する。以下では、実施例１における運転制御部７００の運転制御の手順（図５）と異なる点を主に説明する。 FIG. 9 is a flowchart showing a procedure in which the operation control unit 700 controls the operation of the ventilation unit 600, which is the deodorizing device in the present embodiment, in the present embodiment. The operation control unit 700 controls the operation of the ventilation unit 600 so that the odor intensity of the odorous gas discharged to the outside of the building 110 of the plant 100 is equal to or less than a predetermined reference value. Hereinafter, the points different from the operation control procedure (FIG. 5) of the operation control unit 700 in the first embodiment will be mainly described.
　Ｓ４１で、運転制御部７００は、プラント１００の建屋１１０の内部のにおいの強さを臭気センサ９００から取得する。臭気センサ９００は、プラント１００の建屋１１０の内部のにおいの強さを計測して取得する。 In S41, the operation control unit 700 acquires the strength of the odor inside the building 110 of the plant 100 from the odor sensor 900. The odor sensor 900 measures and acquires the strength of the odor inside the building 110 of the plant 100.
　Ｓ２で、運転制御部７００は、実施例１のＳ２での処理（図５）と同様に、Ｓ１で取得したにおいの強さを屋内基準値と比較する。Ｓ１で取得したにおいの強さは、臭気センサ９００が計測したプラント１００の建屋１１０の内部のにおいの強さである。取得したにおいの強さが、屋内基準値以下の場合には、Ｓ４３に進み、屋内基準値を超える場合には、Ｓ４に進む。 In S2, the operation control unit 700 compares the strength of the odor acquired in S1 with the indoor reference value, as in the process in S2 of Example 1 (FIG. 5). The odor intensity acquired in S1 is the odor intensity inside the building 110 of the plant 100 measured by the odor sensor 900. If the strength of the acquired odor is equal to or less than the indoor standard value, the process proceeds to S43, and if the acquired odor intensity exceeds the indoor standard value, the process proceeds to S4.
　Ｓ４３で、運転制御部７００は、換気部６００が稼働している場合には、換気部６００の排気量を減少させる。運転制御部７００は、臭気センサ９００が計測したプラント１００の建屋１１０の内部のにおいの強さに応じて、換気部６００の排気量を減少させることができる。本実施例では、プラント１００の建屋１１０の内部のにおいの強さを、推定するのではなく、臭気センサ９００で実測しているので、運転制御部７００は、においの強さに応じて換気部６００の排気量を細かく制御することができる。 In S43, the operation control unit 700 reduces the displacement of the ventilation unit 600 when the ventilation unit 600 is operating. The operation control unit 700 can reduce the displacement of the ventilation unit 600 according to the strength of the odor inside the building 110 of the plant 100 measured by the odor sensor 900. In this embodiment, the strength of the odor inside the building 110 of the plant 100 is actually measured by the odor sensor 900 instead of estimating it, so that the operation control unit 700 is the ventilation unit according to the strength of the odor. The displacement of 600 can be finely controlled.
　以後の処理Ｓ４－Ｓ１１では、実施例１での処理Ｓ４－Ｓ１１と同様の処理を行う。 Subsequent processes S4-S11 perform the same processes as the processes S4-S11 in the first embodiment.
　本実施例による脱臭装置制御システム１０は、におい取得部である臭気センサ９００を備えるので、プラント１００の建屋１１０の内部のにおいの強さを推定するのではなく実測することができ、実測したにおいの強さに応じて換気部６００の排気量を制御することで、プラント１００の建屋１１０の外部に排出される臭気ガスのにおいの強さを効果的に減少させることができるとともに、脱臭装置制御システム１０の省エネ運転が可能である。 Since the deodorizing device control system 10 according to this embodiment includes an odor sensor 900 which is an odor acquisition unit, it is possible to actually measure the odor strength inside the building 110 of the plant 100 instead of estimating it, and the measured odor. By controlling the exhaust amount of the ventilation unit 600 according to the strength of the odor gas, the strength of the odor of the odorous gas discharged to the outside of the building 110 of the plant 100 can be effectively reduced, and the deodorizing device control can be performed. Energy-saving operation of the system 10 is possible.
　本実施例による脱臭装置制御システム１０は、実施例１による脱臭装置制御システム１０と同様に、監視制御部２００とにおい発生推定部５００を備えることができる。監視制御部２００とにおい発生推定部５００を備える場合には、運転制御部７００は、臭気センサ９００が実測したにおいの強さと、におい発生推定部５００が推定したにおいの強さを比較し、強い方のにおいの強さをプラント１００の建屋１１０の内部のにおいの強さとする。このようにすることで、建屋１１０から排出された臭気ガスのにおいがプラント１００の周囲の住環境に与える影響を効果的に減らすことができる。 The deodorizing device control system 10 according to the present embodiment can include a monitoring control unit 200 and an odor generation estimation unit 500, similarly to the deodorizing device control system 10 according to the first embodiment. When the monitoring control unit 200 and the odor generation estimation unit 500 are provided, the operation control unit 700 compares the odor intensity actually measured by the odor sensor 900 with the odor intensity estimated by the odor generation estimation unit 500, and is strong. The strength of the odor of the person is defined as the strength of the odor inside the building 110 of the plant 100. By doing so, it is possible to effectively reduce the influence of the odor gas discharged from the building 110 on the living environment around the plant 100.
　本実施例による脱臭装置制御システム１０は、実施例２による脱臭装置制御システム１０と同様に、脱臭装置として換気部６００と脱臭部８００を備えてもよい。 The deodorizing device control system 10 according to the present embodiment may include a ventilation unit 600 and a deodorizing unit 800 as the deodorizing device, similarly to the deodorizing device control system 10 according to the second embodiment.
　なお、本発明は、上記の実施例に限定されるものではなく、様々な変形が可能である。例えば、上記の実施例は、本発明を分かりやすく説明するために詳細に説明したものであり、本発明は、必ずしも説明した全ての構成を備える態様に限定されるものではない。また、ある実施例の構成の一部を他の実施例の構成に置き換えることが可能である。また、ある実施例の構成に他の実施例の構成を加えることも可能である。また、各実施例の構成の一部について、削除したり、他の構成を追加・置換したりすることが可能である。 The present invention is not limited to the above embodiment, and various modifications are possible. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to the embodiment including all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment. It is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to delete a part of the configuration of each embodiment and add / replace another configuration.
　１０…脱臭装置制御システム、１００…プラント、１１０…建屋、２００…監視制御部、３００…外部センサ、４００…情報取得部、５００…におい発生推定部、６００…換気部、７００…運転制御部、８００…脱臭部、９００…臭気センサ。 10 ... Deodorizing device control system, 100 ... Plant, 110 ... Building, 200 ... Monitoring control unit, 300 ... External sensor, 400 ... Information acquisition unit, 500 ... Smell generation estimation unit, 600 ... Ventilation unit, 700 ... Operation control unit, 800 ... Deodorizing part, 900 ... Odor sensor.

Claims (11)

  1. 　プラントの建屋の内部のにおいの強さを取得するにおい取得部と、
    　前記建屋の外部環境を計測して前記外部環境についての情報を取得する外部センサと、
    　前記建屋の内部の臭気ガスを前記建屋の外部に排出するための装置である脱臭装置と、
    　前記におい取得部が取得した前記建屋の内部のにおいの強さと、前記外部センサが取得した前記外部環境についての情報とに基づいて、前記建屋の外部に排出される前記臭気ガスのにおいの強さが予め定めた基準値以下となるように、前記脱臭装置の運転を制御する運転制御部と、
    を備えることを特徴とする脱臭装置制御システム。     The odor acquisition department that acquires the strength of the odor inside the plant building,
    An external sensor that measures the external environment of the building and acquires information about the external environment,
    A deodorizing device that is a device for discharging the odorous gas inside the building to the outside of the building, and
    The strength of the odor of the odorous gas discharged to the outside of the building based on the strength of the odor inside the building acquired by the odor acquisition unit and the information about the external environment acquired by the external sensor. The operation control unit that controls the operation of the deodorizing device so that
    A deodorizing device control system characterized by being equipped with.
  2. 　前記外部センサは、前記外部環境についての情報として、少なくとも風速と風向を計測して取得する、
    請求項１に記載の脱臭装置制御システム。     The external sensor measures and acquires at least the wind speed and the wind direction as information about the external environment.
    The deodorizing device control system according to claim 1.
  3. 　前記プラントの施設と装置を監視制御し、前記プラントの運転状態についての情報を取得する監視制御部を備え、
    　前記におい取得部は、前記監視制御部が取得した前記運転状態についての情報から、前記建屋の内部のにおいの強さを推定して取得するにおい発生推定部を備える、
    請求項１に記載の脱臭装置制御システム。     It is equipped with a monitoring control unit that monitors and controls the facilities and equipment of the plant and acquires information about the operating status of the plant.
    The odor acquisition unit includes an odor generation estimation unit that estimates and acquires the strength of the odor inside the building from the information about the operating state acquired by the monitoring and control unit.
    The deodorizing device control system according to claim 1.
  4. 　前記監視制御部は、前記運転状態についての情報として、前記プラントの運転によって得られるデータを取得し、
    　前記におい発生推定部は、予め求めた、前記データと前記建屋の内部のにおいの強さとの関係を用いて、前記データから前記建屋の内部のにおいの強さを推定する、
    請求項３に記載の脱臭装置制御システム。     The monitoring control unit acquires data obtained by the operation of the plant as information about the operating state, and obtains data.
    The odor generation estimation unit estimates the odor intensity inside the building from the data by using the relationship between the data and the odor intensity inside the building obtained in advance.
    The deodorizing device control system according to claim 3.
  5. 　前記運転制御部は、
    前記建屋の内部のにおいの強さから、前記脱臭装置の排気量を算出し、
    算出した前記排気量と前記外部環境についての情報を用いて、前記建屋から排出された前記臭気ガスの拡散計算を行って、前記建屋の外部におけるにおいの強さを推測し、
    推測した前記建屋の外部におけるにおいの強さが前記基準値以下となるように、前記脱臭装置の前記排気量を再計算して求め、
    再計算して求めた前記排気量で前記脱臭装置を運転する、
    請求項１に記載の脱臭装置制御システム。     The operation control unit
    The displacement of the deodorizing device was calculated from the strength of the odor inside the building.
    Using the calculated displacement and the information about the external environment, the diffusion calculation of the odorous gas discharged from the building is performed to estimate the strength of the odor outside the building.
    The displacement of the deodorizing device was recalculated and obtained so that the estimated strength of the odor outside the building would be equal to or less than the reference value.
    Operate the deodorizing device with the displacement obtained by recalculation.
    The deodorizing device control system according to claim 1.
  6. 　前記脱臭装置は、送風機を有する換気部を備える、
    請求項１に記載の脱臭装置制御システム。     The deodorizing device includes a ventilation unit having a blower.
    The deodorizing device control system according to claim 1.
  7. 　前記脱臭装置は、前記臭気ガスに含まれる臭気物質を除去する脱臭部を備える、
    請求項６に記載の脱臭装置制御システム。     The deodorizing device includes a deodorizing unit that removes an odorous substance contained in the odorous gas.
    The deodorizing device control system according to claim 6.
  8. 　前記におい取得部は、前記建屋の内部に設けられ、前記建屋の内部のにおいの強さを計測して取得する臭気センサを備える、
    請求項１に記載の脱臭装置制御システム。     The odor acquisition unit is provided inside the building and includes an odor sensor that measures and acquires the intensity of the odor inside the building.
    The deodorizing device control system according to claim 1.
  9. 　前記におい取得部は、前記建屋の内部に設けられ、前記建屋の内部のにおいの強さを計測して取得する臭気センサを備え、
    　前記運転制御部は、前記臭気センサが計測したにおいの強さと、前記におい発生推定部が推定したにおいの強さを比較し、強い方のにおいの強さを前記建屋の内部のにおいの強さとする、
    請求項３に記載の脱臭装置制御システム。     The odor acquisition unit is provided inside the building and includes an odor sensor that measures and acquires the intensity of the odor inside the building.
    The operation control unit compares the odor intensity measured by the odor sensor with the odor intensity estimated by the odor generation estimation unit, and determines the stronger odor intensity as the odor intensity inside the building. do,
    The deodorizing device control system according to claim 3.
  10. 　前記脱臭装置は、送風機を有する換気部を備える、
    請求項９に記載の脱臭装置制御システム。     The deodorizing device includes a ventilation unit having a blower.
    The deodorizing device control system according to claim 9.
  11. 　前記脱臭装置は、前記臭気ガスに含まれる臭気物質を除去する脱臭部を備える、
    請求項１０に記載の脱臭装置制御システム。     The deodorizing device includes a deodorizing unit that removes an odorous substance contained in the odorous gas.
    The deodorizing device control system according to claim 10.
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