CN105091224A - Indoor air quality adjusting method and system of large public building - Google Patents
Indoor air quality adjusting method and system of large public building Download PDFInfo
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- CN105091224A CN105091224A CN201510477064.5A CN201510477064A CN105091224A CN 105091224 A CN105091224 A CN 105091224A CN 201510477064 A CN201510477064 A CN 201510477064A CN 105091224 A CN105091224 A CN 105091224A
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- air quality
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- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
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- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/52—Air quality properties of the outside air
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- 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
Abstract
The invention discloses an indoor air quality adjusting method and system of a large public building. The method comprises the following steps that a remote server reads primary air system air volume and exhaust system air volume information pre-stored in various areas in the large public building, the top and bottom limitation information, set by a building management worker, of the concentration of carbon dioxide, PM2.5 and VOC in indoor air, the top and bottom limitation information, set by the building management worker, of the concentration of PM2.5 in the outdoor air, and the top limitation information, set by the building management worker, of the concentration of sulfur dioxide and nitrogen dioxide in the outdoor air; and the remote server periodically collects data of an indoor air quality monitoring device and data of an outdoor air quality monitoring device, real-time data are compared with the limiting value, and a primary air system and an exhaust system are controlled. According to the indoor air quality adjusting system of the large public building, a primary air device and an exhaust device of the whole building are controlled by the remote server in a centralized manner. Compared with a current system controlled by a single device, the control scale is larger, and the quality of the indoor air of the building can be adjusted from the macroscopic level.
Description
Technical field
The present invention relates to IAQ regulation technology, particularly a kind of large public building IAQ control method and system.
Background technology
Large public building is general all supporting heating ventilation air-conditioning system, and heating ventilation air-conditioning system generally comprises the functions such as heating, refrigeration, air draft, new wind.The IAQ of building is exactly the content relying on exhaust blower and Fresh air handling units to control the pollutant such as carbon dioxide, VOC (volatile organic matter), PM2.5, nitrogen dioxide in room air, keeps the clean of room air.
But along with the aggravation of current outdoor air pollution degree, increase the quality that new wind not necessarily just can improve room air; And it is also easy by the cold air of indoor or heating installation discharge to strengthen air draft, increase the energy consumption of heating ventilation air-conditioning system.
Existing in the patent of IAQ at present, substantially be all the control for single new wind devices or air cleaning facility, if CN103673223A " a kind of VMC based on the early warning of wind pushing air quality and intelligent control method " is exactly the control for the new air valve of each air-conditioner set; CN203687297U " IAQ intelligent controlling device " then a kind of novel fresh air machine set control device.Therefore, a kind of technology controlled for large public building integrated air mass concentration need exploitation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of large public building IAQ control method is provided, this control method is by the Real-Time Monitoring to Outdoor Air Quality and IAQ, pass through long-distance centralized control, the VMC of large public building and exhaust system are effectively managed, improve architecture indoor air quality, reduce the waste of the energy simultaneously.
The invention provides a kind of large public building IAQ control method, comprise the following steps:
(1) VMC air quantity, the exhaust system air quantity information of regional in the large public building of remote server reading pre-stored, and carbon dioxide, PM2.5, VOC concentration limits information in the room air of architectural control personnel setting, PM2.5 concentration limits in outdoor air, sulfur dioxide, content of nitrogen dioxide upper-limit information, and the percentage settings value that resh air requirement is more than exhaust air rate;
(2) remote server carries out cycle collection to indoor and outdoors air quality monitoring equipment data, and real time data and limit value is compared, and controls VMC and exhaust system;
In step (2), the concrete grammar of real time data and limit value being compared is:
(2-1) remote server obtains the real-time concentration of outdoor sulfur dioxide and nitrogen dioxide, if the real-time concentration of sulfur dioxide and nitrogen dioxide is higher than the higher limit of sulfur dioxide outdoor in remote server and content of nitrogen dioxide, remote server is just reported to the police to outdoor sulfur dioxide and content of nitrogen dioxide, the purification of air work for the treatment of of notice architectural control personnel placement indoor;
(2-2) remote server obtains the real time environment temperature data of indoor regional, and Fresh air handling units leaving air temp corresponding for regional is set to the real time environment temperature in this region by field control technology;
(2-3) remote server obtains the real-time concentration data of outdoor PM2.5, if the real-time concentration of outdoor PM2.5 is higher than the outdoor PM2.5 upper limit of concentration in remote server, remote server opens the Electric air valve having multistorey strainer mesh in VMC by field control technology, close the Electric air valve only having individual layer filter screen simultaneously;
(2-4) remote server obtains the real time data of indoor PM2.5 concentration and VOC concentration, if a certain region PM2.5 real-time concentration or VOC real-time concentration are wherein a kind of higher than the indoor PM2.5 concentration in remote server and VOC concentration capping, remote server opens exhaust system and the VMC in this region by field control technology, and starts the opening time of this exhaust system accumulative and VMC;
When the instantaneous value of indoor PM2.5 concentration and VOC concentration sets in limited time lower lower than the indoor PM2.5 concentration in remote server and VOC concentration, enter step (2-5);
(2-5) remote server obtains the real time data of indoor carbon dioxide concentration, if a certain region carbon dioxide real-time concentration is higher than the indoor carbon dioxide concentration capping in remote server, remote server opens exhaust system and the VMC in this region by field control technology, and starts the opening time of this exhaust system accumulative and VMC;
When the instantaneous value of indoor carbon dioxide concentration is lower in limited time lower than the indoor carbon dioxide concentration setting in remote server, enter step (2-6);
(2-6) remote server stops the instantaneous value of indoor carbon dioxide concentration lower than the exhaust system in the region of the indoor carbon dioxide concentration setting lower limit in remote server by field control technology, record the unlatching duration of this exhaust system, and read the air quantity data of this exhaust system, calculate actual air quantity of draining; The percentage settings more than exhaust air rate according to resh air requirement, calculates the duration that VMC is opened, if this duration is less than exhaust system open duration, VMC and exhaust system stop simultaneously; If this duration is greater than exhaust system open duration, when arriving VMC unlatching duration, remote server stops the VMC in this region by field control technology.
The present invention also provides a kind of large public building IAQ regulating system, this system comprises: remote server, VMC, exhaust system and air quality monitoring equipment, described VMC and exhaust system are distributed in the regional of public building indoor, each region is all configured with indoor air quality monitoring equipment, and remote server is connected with field control technology by one or more data conversion module, described remote server is one or more, comprises information setting and memory module, data call module, new wind devices address management module, new wind devices status monitoring read and processing module, Outdoor Air Quality monitoring equipment address management module, Outdoor Air Quality monitoring equipment digital independent and processing module with control module, exhaust equipment address management module, exhaust equipment status monitoring and control module, indoor air quality monitoring device address administration module, indoor air quality monitoring device data in remote server, information setting and memory module are connected with data call module, new wind devices address management module, exhaust equipment address management module, indoor air quality monitoring device address administration module and Outdoor Air Quality monitoring equipment address management module respectively with data call model calling, new wind devices status monitoring is connected with new wind devices address management module with control module, exhaust equipment status monitoring is connected with exhaust equipment address management module with control module, indoor air quality monitoring device address administration module reads with indoor air quality monitoring device data and is connected with processing module, Outdoor Air Quality monitoring equipment address management module is connected with processing module with Outdoor Air Quality monitoring equipment digital independent.
Described information setting and memory module are for setting and store VMC air quantity, the exhaust blower air quantity information of regional in large public building, and carbon dioxide, PM2.5, VOC concentration limits information in the room air of architectural control personnel setting, PM2.5 in outdoor air, sulfur dioxide, content of nitrogen dioxide bound information, and the percentage settings value that resh air requirement is more than exhaust air rate;
Described data call module for coordinating the data of new wind devices address management module, exhaust equipment address management module, indoor air quality monitoring device address administration module and Outdoor Air Quality monitoring equipment address management module, and carries out read-write operation to the information of information setting and memory module;
Described new wind devices address management module is for managing construction area and the network address coding thereof at new wind devices place;
Described new wind devices status monitoring and control module, for receiving the running state information of new wind devices and being uploaded to new wind devices address management module, receive the instruction of new wind devices address management module simultaneously and carry out Long-distance Control to corresponding new wind devices;
Described exhaust equipment address management module is for managing construction area and the network address coding thereof at exhaust equipment place;
Described exhaust equipment status monitoring and control module, for receiving the running state information of exhaust equipment and being uploaded to exhaust equipment address management module, receive the instruction of exhaust equipment address management module simultaneously and carry out Long-distance Control to corresponding exhaust equipment;
Described indoor air quality monitoring device address administration module is used for construction area and the network address coding thereof at air quality monitoring equipment place in caretaker room;
Described indoor air quality monitoring device data reads with air quality monitoring equipment data in processing module receiving chamber and is uploaded to indoor air quality monitoring device address administration module;
Described Outdoor Air Quality monitoring equipment address management module is used for construction area and the network address coding thereof at caretaker room outer air quality monitoring device place;
Described Outdoor Air Quality monitoring equipment digital independent and processing module receiving chamber outer air quality monitoring device data are also uploaded to Outdoor Air Quality monitoring equipment address management module.
Described VMC include refrigeration and heating function Fresh air handling units and with the air-conditioner set of fresh air pipeline and control device thereof;
Described have a Fresh air handling units air inlet of refrigeration and heating function while the intake stack parallel with two be connected, wherein an intake stack comprises individual layer plain gauze and Electric air valve, the multilayer that comprises another intake stack contains filter screen and the Electric air valve of unlike material, article two, the entrance of equality intake stack is connected with the outdoor air inlet of building simultaneously, the air outlet of Fresh air handling units is connected with the air-intaking box of fan coil or ceiling type air conditioner unit, or is directly connected with indoor fresh wind port;
The new wind air inlet of the described air-conditioner set with the fresh air pipeline simultaneously intake stack parallel with two connects, wherein an intake stack comprises individual layer plain gauze and Electric air valve, the multilayer that comprises another intake stack contains filter screen and the motor-driven valve of unlike material, and the entrance of two equality intake stacks is connected with the outdoor air inlet of building simultaneously.
Described Outdoor Air Quality monitoring equipment comprises Temperature Humidity Sensor, SO 2 sensor, nitrogen dioxide sensor, PM2.5 sensor, and these sensors every building is only each installs one, and installation site is the outer shady and cool ventilation of building; Described indoor air quality monitoring equipment comprises Temperature Humidity Sensor, carbon dioxide sensor, VOC sensor, PM2.5 sensor, these sensors are installed on architecture indoor according to actual needs, and each uses in region, sensor can not be installed on air-conditioner air outlet place, and above-mentioned each sensor is connected with field control technology.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
(1) the present invention be directed to the IAQ regulating system of large public building, remote server is adopted to carry out centralized Control to whole the new wind built, exhaust equipment, compare at present for the system that individual equipment controls, magnitude control is larger, can regulate the IAQ of building from macroscopic aspect.
(2) the present invention carries out rational time controling to exhaust air rate and resh air requirement, ensures the malleation of architecture indoor air; Carry out Synchronization Control to new blower fan leaving air temp and indoor environment temperature, scientific utilization air draft and new wind devices, reach the object of economize energy.
(3) compared to existing technology, the present invention can improve the efficiency of management of building hvac equipment, raises the management level.
Accompanying drawing explanation
Fig. 1 is the flow chart of this large public building IAQ control method.
Fig. 1 a is the enlarged drawing at 1a place in Fig. 1.
Fig. 1 b is the enlarged drawing at 1b place in Fig. 1.
Fig. 1 c is the enlarged drawing at 1c place in Fig. 1.
Fig. 1 d is the enlarged drawing at 1d place in Fig. 1.
Fig. 2 is the structure principle chart of this large public building IAQ regulating system.
Fig. 3 is the control method flow chart of the large public building IAQ regulating system of embodiment 1.
Fig. 3 a is the enlarged drawing at 3a place in Fig. 3.
Fig. 3 b is the enlarged drawing at 3b place in Fig. 3.
Fig. 3 c is the enlarged drawing at 3c place in Fig. 3.
Fig. 3 d is the enlarged drawing at 3d place in Fig. 3.
Fig. 4 is the large public building IAQ regulating system structure chart of embodiment 1.
Fig. 5 is in the large public building IAQ regulating system of embodiment 1, the structure principle chart of each functional module in remote server.
Fig. 6 is in the large public building IAQ regulating system of embodiment 1, Fresh air handling units air duct structure schematic diagram.
Fig. 7 is in the large public building IAQ regulating system of embodiment 1, the structural representation of air-conditioner set fresh air pipeline.
Fig. 8 is in the large public building IAQ regulating system of embodiment 1, the structural representation of Fresh air handling units controller.
Fig. 9 is in the large public building IAQ regulating system of embodiment 1, the structural representation of new wind valve controller.
Figure 10 is in the large public building IAQ regulating system of embodiment 1, exhaust duct structural representation.
Figure 11 is in the large public building IAQ regulating system of embodiment 1, the structural representation of exhaust blower controller.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
A kind of large public building IAQ of the present embodiment control method, as shown in Figure 3, comprises the following steps:
(1) after start up system, VMC air quantity, the exhaust system air quantity information of regional in the large public building of remote server reading pre-stored, and the gas concentration lwevel bound IN_CO in the room air of architectural control personnel setting
max, IN_CO
min, PM2.5 concentration limits IN_PM
max, IN_PM
min, VOC concentration limits IN_VOC
max, IN_VOC
min, the PM2.5 concentration limits OUT_PM in outdoor air
max, OUT_PM
min, sulfur dioxide concentration upper limit OUT_SO
max, content of nitrogen dioxide upper limit OUT_NO
max, and the percentage settings value ε that resh air requirement is more than exhaust air rate.
(2) remote server carries out cycle collection to indoor and outdoors air quality monitoring equipment data, and real time data and limit value is compared, and controls VMC and exhaust system.
In step (2), concrete comparing process is as follows:
(2-1) remote server obtains real-time concentration value OUT_SO and the OUT_NO of outdoor sulfur dioxide and nitrogen dioxide, if OUT_SO>OUT_SO
maxor OUT_NO>OUT_NO
max, remote server is just reported to the police to outdoor sulfur dioxide and content of nitrogen dioxide, the purification of air work for the treatment of of notice architectural control personnel placement indoor.
(2-2) remote server obtains the real time environment temperature data (C of indoor regional
1, C
2c
n), and by field control technology, Fresh air handling units leaving air temp corresponding for regional is set to the real time environment temperature (C in this region
1, C
2c
n).
(2-3) remote server obtains the real-time concentration data OUT_PM of outdoor PM2.5, if OUT_PM>OUT_PM
max, remote server, by there being the Electric air valve of multistorey strainer mesh in field control technology VMC, closes the Electric air valve only having individual layer filter screen simultaneously.
(2-4) remote server obtains real time data IN_PM and the IN_VOC of indoor PM2.5 concentration and VOC concentration, if a certain region IN_PM>IN_PM
maxor IN_VOC>IN_VOC
max, remote server opens exhaust system and the VMC in this region by field control technology, and starts the opening time of this exhaust system accumulative and VMC.
Work as IN_PM<IN_PM
minand IN_VOC<IN_VOC
mintime, enter step (2-5).
(2-5) remote server obtains the real time data IN_CO of indoor carbon dioxide concentration, if the IN_CO>IN_CO in a certain region
max, remote server opens exhaust system and the VMC in this region by field control technology, and starts the opening time of this exhaust system accumulative and VMC.
As indoor IN_CO<IN_CO
maxtime, enter step (2-6).
(2-6) remote server stops the instantaneous value IN_CO of indoor carbon dioxide concentration lower than the indoor carbon dioxide concentration setting lower limit IN_CO in remote server by field control technology
minthe exhaust system in region, record the unlatching duration of this exhaust system, and read the air quantity data of this exhaust system, calculate actual air quantity of draining; The percentage settings value ε more than exhaust air rate according to resh air requirement, calculates the duration that VMC is opened, if this duration is less than exhaust system open duration, VMC and exhaust system stop simultaneously; If this duration is greater than exhaust system open duration, when arriving VMC unlatching duration, remote server stops the VMC in this region by field control technology.Native system keeps the air positive pressure of architecture indoor by this method.
A kind of large public building IAQ regulating system for said method of the present embodiment, as shown in Figure 4, comprises remote server, VMC, exhaust system and air quality monitoring equipment.VMC and exhaust system are distributed in the regional of public building indoor, and each region is all configured with indoor air quality monitoring equipment.Remote server is connected with field control technology by one or more data conversion module, and in the present embodiment, data conversion module is Ethernet-RS485 modular converter, and field control technology is RS485 communication network.
Remote server of the present invention is one or more, as shown in Figure 5, comprise information setting and memory module in remote server, data call module, new wind devices address management module, new wind devices status monitoring read and processing module, Outdoor Air Quality monitoring equipment address management module, Outdoor Air Quality monitoring equipment digital independent and processing module with control module, exhaust equipment address management module, exhaust equipment status monitoring and control module, indoor air quality monitoring device address administration module, indoor air quality monitoring device data, information setting and memory module are connected with data call module, new wind devices address management module, exhaust equipment address management module, indoor air quality monitoring device address administration module and Outdoor Air Quality monitoring equipment address management module respectively with data call model calling, new wind devices status monitoring is connected with new wind devices address management module with control module, exhaust equipment status monitoring is connected with exhaust equipment address management module with control module, indoor air quality monitoring device address administration module reads with indoor air quality monitoring device data and is connected with processing module, Outdoor Air Quality monitoring equipment address management module is connected with processing module with Outdoor Air Quality monitoring equipment digital independent,
Wherein, information setting and memory module are for setting and store VMC air quantity, the exhaust blower air quantity information of regional in large public building, and carbon dioxide, PM2.5, VOC concentration limits information in the room air of architectural control personnel setting, PM2.5 in outdoor air, sulfur dioxide, content of nitrogen dioxide bound information, and the percentage settings value that resh air requirement is more than exhaust air rate;
Data call module for coordinating the data of new wind devices address management module, exhaust equipment address management module, indoor air quality monitoring device address administration module and Outdoor Air Quality monitoring equipment address management module, and carries out read-write operation to the information of information setting and memory module;
New wind devices address management module is for managing construction area and the network address coding thereof at new wind devices place;
New wind devices status monitoring and control module, for receiving the running state information of new wind devices and being uploaded to new wind devices address management module, receive the instruction of new wind devices address management module simultaneously and carry out Long-distance Control to corresponding new wind devices;
Exhaust equipment address management module is for managing construction area and the network address coding thereof at exhaust equipment place;
Exhaust equipment status monitoring and control module, for receiving the running state information of exhaust equipment and being uploaded to exhaust equipment address management module, receive the instruction of exhaust equipment address management module simultaneously and carry out Long-distance Control to corresponding exhaust equipment;
Indoor air quality monitoring device address administration module is used for construction area and the network address coding thereof at air quality monitoring equipment place in caretaker room;
Indoor air quality monitoring device data reads with air quality monitoring equipment data in processing module receiving chamber and is uploaded to indoor air quality monitoring device address administration module;
Outdoor Air Quality monitoring equipment address management module is used for construction area and the network address coding thereof at caretaker room outer air quality monitoring device place;
Outdoor Air Quality monitoring equipment digital independent and processing module receiving chamber outer air quality monitoring device data are also uploaded to Outdoor Air Quality monitoring equipment address management module.
VMC of the present invention, include refrigeration and heating function Fresh air handling units and with the air-conditioner set of fresh air pipeline and control device thereof.
As shown in Figure 6, described have a Fresh air handling units air inlet of refrigeration and heating function while the intake stack parallel with two be connected, wherein an intake stack comprises individual layer plain gauze and Electric air valve, and another intake stack comprises filter screen and the Electric air valve that multilayer contains unlike material.Article two, the entrance of equality intake stack is connected with the outdoor air inlet of building simultaneously.The air outlet of Fresh air handling units is connected with the air-intaking box of fan coil or ceiling type air conditioner unit, or is directly connected with indoor fresh wind port.
As shown in Figure 7, the new wind air inlet of the described air-conditioner set with the fresh air pipeline simultaneously intake stack parallel with two connects, wherein an intake stack comprises individual layer plain gauze and Electric air valve, and another intake stack comprises filter screen and the motor-driven valve that multilayer contains unlike material.Article two, the entrance of equality intake stack is connected with the outdoor air inlet of building simultaneously.
When VMC is the Fresh air handling units having refrigeration and heating function, its control device as shown in Figure 8, is provided with Fresh air handling units controller, Fresh air handling units fan power loop contactor, Fresh air handling units motor-driven valve electric power loop contactor, Electric air valve electric power loop relay and data communication module.Fresh air handling units controller is provided with 2 AI ports, 5 DI ports and 4 DO ports, AI port is connected with Fresh air handling units leaving air temp sensor T1, motor-driven valve V1 aperture contact respectively, DI port is connected with the switching signal contact of fan power loop contactor KM1 signalling contact and 2 Electric air valves V1, V2 respectively, DO port is connected with fan power loop contactor KM1, motor-driven valve electric power loop contact R 1,2 Electric air valve electric power loop relay R 2, R3 respectively, and Fresh air handling units controller is connected with RS-485 field control technology by data communication module MAX485;
When VMC is the new wind air inlet with the air-conditioner set of fresh air pipeline, its control device as shown in Figure 9, is provided with new wind valve controller, Electric air valve electric power loop relay and data communication module.New wind valve controller is provided with 4 DI ports and 2 DO ports, DI port is connected with the switching signal contact of 2 Electric air valves V1, V2 respectively, DO port is connected with 2 Electric air valve electric power loop relay R 1, R2 respectively, and new wind valve controller is connected with RS-485 field control technology by data communication module MAX485.
Exhaust system of the present invention, as shown in Figure 10, refer to that wind exhausting outlet is connected to the outdoor exhaust outlet of building, air draft entrance is connected to exhaust blower and the control device thereof of architecture indoor exhaust outlet.Control device as shown in figure 11, is provided with exhaust blower controller, fan power loop contactor and data communication module.Exhaust blower controller is provided with 1 DI port and 1 DO port, DI port is connected with fan power loop contactor KM1 signalling contact, DO port is connected with fan power loop contactor KM1, and exhaust blower controller is connected with RS-485 field control technology by data communication module MAX485.
Outdoor Air Quality monitoring equipment of the present invention comprises Temperature Humidity Sensor, SO 2 sensor, nitrogen dioxide sensor, PM2.5 sensor, these sensors every building is only each installs one, installation site is the outer shady and cool ventilation of building, as shown in Figure 4; Described indoor air quality monitoring equipment comprises Temperature Humidity Sensor, carbon dioxide sensor, VOC sensor, PM2.5 sensor, these sensors are installed on architecture indoor according to actual needs, and each uses in region, and sensor can not be installed on air-conditioner air outlet place.The sensor is connected with field control technology.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. a large public building IAQ control method, is characterized in that, comprises the following steps:
(1) VMC air quantity, the exhaust system air quantity information of regional in the large public building of remote server reading pre-stored, and carbon dioxide, PM2.5, VOC concentration limits information in the room air of architectural control personnel setting, PM2.5 concentration limits in outdoor air, sulfur dioxide, content of nitrogen dioxide upper-limit information, and the percentage settings value that resh air requirement is more than exhaust air rate;
(2) remote server carries out cycle collection to indoor and outdoors air quality monitoring equipment data, and real time data and limit value is compared, and controls VMC and exhaust system;
In step (2), the concrete grammar of real time data and limit value being compared is:
(2-1) remote server obtains the real-time concentration of outdoor sulfur dioxide and nitrogen dioxide, if the real-time concentration of sulfur dioxide and nitrogen dioxide is higher than the higher limit of sulfur dioxide outdoor in remote server and content of nitrogen dioxide, remote server is just reported to the police to outdoor sulfur dioxide and content of nitrogen dioxide, the purification of air work for the treatment of of notice architectural control personnel placement indoor;
(2-2) remote server obtains the real time environment temperature data of indoor regional, and Fresh air handling units leaving air temp corresponding for regional is set to the real time environment temperature in this region by field control technology;
(2-3) remote server obtains the real-time concentration data of outdoor PM2.5, if the real-time concentration of outdoor PM2.5 is higher than the outdoor PM2.5 upper limit of concentration in remote server, remote server opens the Electric air valve having multistorey strainer mesh in VMC by field control technology, close the Electric air valve only having individual layer filter screen simultaneously;
(2-4) remote server obtains the real time data of indoor PM2.5 concentration and VOC concentration, if a certain region PM2.5 real-time concentration or VOC real-time concentration are wherein a kind of higher than the indoor PM2.5 concentration in remote server and VOC concentration capping, remote server opens exhaust system and the VMC in this region by field control technology, and starts the opening time of this exhaust system accumulative and VMC;
When the instantaneous value of indoor PM2.5 concentration and VOC concentration sets in limited time lower lower than the indoor PM2.5 concentration in remote server and VOC concentration, enter step (2-5);
(2-5) remote server obtains the real time data of indoor carbon dioxide concentration, if a certain region carbon dioxide real-time concentration is higher than the indoor carbon dioxide concentration capping in remote server, remote server opens exhaust system and the VMC in this region by field control technology, and starts the opening time of this exhaust system accumulative and VMC;
When the instantaneous value of indoor carbon dioxide concentration is lower in limited time lower than the indoor carbon dioxide concentration setting in remote server, enter step (2-6);
(2-6) remote server stops the instantaneous value of indoor carbon dioxide concentration lower than the exhaust system in the region of the indoor carbon dioxide concentration setting lower limit in remote server by field control technology, record the unlatching duration of this exhaust system, and read the air quantity data of this exhaust system, calculate actual air quantity of draining; The percentage settings more than exhaust air rate according to resh air requirement, calculates the duration that VMC is opened, if this duration is less than exhaust system open duration, VMC and exhaust system stop simultaneously; If this duration is greater than exhaust system open duration, when arriving VMC unlatching duration, remote server stops the VMC in this region by field control technology.
2. a large public building IAQ regulating system, it is characterized in that, this system comprises: remote server, VMC, exhaust system and air quality monitoring equipment, described VMC and exhaust system are distributed in the regional of public building indoor, each region is all configured with indoor air quality monitoring equipment, and remote server is connected with field control technology by one or more data conversion module, described remote server is one or more, comprises information setting and memory module, data call module, new wind devices address management module, new wind devices status monitoring read and processing module, Outdoor Air Quality monitoring equipment address management module, Outdoor Air Quality monitoring equipment digital independent and processing module with control module, exhaust equipment address management module, exhaust equipment status monitoring and control module, indoor air quality monitoring device address administration module, indoor air quality monitoring device data in remote server, information setting and memory module are connected with data call module, new wind devices address management module, exhaust equipment address management module, indoor air quality monitoring device address administration module and Outdoor Air Quality monitoring equipment address management module respectively with data call model calling, new wind devices status monitoring is connected with new wind devices address management module with control module, exhaust equipment status monitoring is connected with exhaust equipment address management module with control module, indoor air quality monitoring device address administration module reads with indoor air quality monitoring device data and is connected with processing module, Outdoor Air Quality monitoring equipment address management module is connected with processing module with Outdoor Air Quality monitoring equipment digital independent.
3. large public building IAQ regulating system according to claim 2, it is characterized in that, described information setting and memory module are for setting and store VMC air quantity, the exhaust blower air quantity information of regional in large public building, and carbon dioxide, PM2.5, VOC concentration limits information in the room air of architectural control personnel setting, PM2.5 in outdoor air, sulfur dioxide, content of nitrogen dioxide bound information, and the percentage settings value that resh air requirement is more than exhaust air rate;
Described data call module for coordinating the data of new wind devices address management module, exhaust equipment address management module, indoor air quality monitoring device address administration module and Outdoor Air Quality monitoring equipment address management module, and carries out read-write operation to the information of information setting and memory module;
Described new wind devices address management module is for managing construction area and the network address coding thereof at new wind devices place;
Described new wind devices status monitoring and control module, for receiving the running state information of new wind devices and being uploaded to new wind devices address management module, receive the instruction of new wind devices address management module simultaneously and carry out Long-distance Control to corresponding new wind devices;
Described exhaust equipment address management module is for managing construction area and the network address coding thereof at exhaust equipment place;
Described exhaust equipment status monitoring and control module, for receiving the running state information of exhaust equipment and being uploaded to exhaust equipment address management module, receive the instruction of exhaust equipment address management module simultaneously and carry out Long-distance Control to corresponding exhaust equipment;
Described indoor air quality monitoring device address administration module is used for construction area and the network address coding thereof at air quality monitoring equipment place in caretaker room;
Described indoor air quality monitoring device data reads with air quality monitoring equipment data in processing module receiving chamber and is uploaded to indoor air quality monitoring device address administration module;
Described Outdoor Air Quality monitoring equipment address management module is used for construction area and the network address coding thereof at caretaker room outer air quality monitoring device place;
Described Outdoor Air Quality monitoring equipment digital independent and processing module receiving chamber outer air quality monitoring device data are also uploaded to Outdoor Air Quality monitoring equipment address management module.
4. large public building IAQ regulating system according to claim 2, is characterized in that, described VMC include refrigeration and heating function Fresh air handling units and with the air-conditioner set of fresh air pipeline and control device thereof;
Described have a Fresh air handling units air inlet of refrigeration and heating function while the intake stack parallel with two be connected, wherein an intake stack comprises individual layer plain gauze and Electric air valve, the multilayer that comprises another intake stack contains filter screen and the Electric air valve of unlike material, article two, the entrance of equality intake stack is connected with the outdoor air inlet of building simultaneously, the air outlet of Fresh air handling units is connected with the air-intaking box of fan coil or ceiling type air conditioner unit, or is directly connected with indoor fresh wind port;
The new wind air inlet of the described air-conditioner set with the fresh air pipeline simultaneously intake stack parallel with two connects, wherein an intake stack comprises individual layer plain gauze and Electric air valve, the multilayer that comprises another intake stack contains filter screen and the motor-driven valve of unlike material, and the entrance of two equality intake stacks is connected with the outdoor air inlet of building simultaneously.
5. large public building IAQ regulating system according to claim 2, it is characterized in that, described Outdoor Air Quality monitoring equipment comprises Temperature Humidity Sensor, SO 2 sensor, nitrogen dioxide sensor and PM2.5 sensor, these sensors every building is only each installs one, and installation site is the outer shady and cool ventilation of building; Described indoor air quality monitoring equipment comprises Temperature Humidity Sensor, carbon dioxide sensor, VOC sensor and PM2.5 sensor, these sensors are installed on architecture indoor according to actual needs, and each uses in region, sensor can not be installed on air-conditioner air outlet place, and above-mentioned each sensor is connected with field control technology.
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