WO2021013048A1 - 一种利用工艺排风的节能通风系统 - Google Patents

一种利用工艺排风的节能通风系统 Download PDF

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Publication number
WO2021013048A1
WO2021013048A1 PCT/CN2020/102474 CN2020102474W WO2021013048A1 WO 2021013048 A1 WO2021013048 A1 WO 2021013048A1 CN 2020102474 W CN2020102474 W CN 2020102474W WO 2021013048 A1 WO2021013048 A1 WO 2021013048A1
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WO
WIPO (PCT)
Prior art keywords
air
exhaust
energy
ventilation system
fresh air
Prior art date
Application number
PCT/CN2020/102474
Other languages
English (en)
French (fr)
Inventor
王威
阎冬
李鹏
李拨
李传琰
王江标
秦学礼
Original Assignee
世源科技工程有限公司
中国电子工程设计院有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910662624.2A external-priority patent/CN110274348A/zh
Priority claimed from CN201910663309.1A external-priority patent/CN110285522A/zh
Application filed by 世源科技工程有限公司, 中国电子工程设计院有限公司 filed Critical 世源科技工程有限公司
Priority to JP2021576887A priority Critical patent/JP2022538130A/ja
Priority to EP20843108.0A priority patent/EP4006436A4/en
Publication of WO2021013048A1 publication Critical patent/WO2021013048A1/zh

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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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • 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
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

Definitions

  • This application relates to the technical field of industrial production, and in particular to an energy-saving ventilation system using process exhaust.
  • the embodiments of the present application provide an energy-saving ventilation system using process exhaust air, which can make full use of process exhaust air and transfer the available process exhaust air itself and/or energy back to the production room and/or the air inlet of the fresh air unit for circulation Utilize, save energy.
  • This application provides an energy-saving ventilation system using process exhaust air, and the energy-saving ventilation system includes:
  • Fresh air unit which is used to process outdoor fresh air and send it to the production room;
  • An exhaust air recycling device which is used to transfer the available process exhaust air itself and/or energy in the production room back to the production room and/or the air inlet of the fresh air unit.
  • the energy-saving ventilation system provided by the embodiment of the application includes a fresh air unit and an exhaust air recycling device.
  • the fresh air unit can send outdoor fresh air through filtration, cooling, heating, humidification, etc., to the production room (production plant).
  • Different process equipment discharges different process exhaust air.
  • the process exhaust air of some process equipment is the available process normal temperature exhaust air
  • the process exhaust air of some process equipment is the available process high temperature or low temperature exhaust air.
  • the recycling device can transfer the available process exhaust air itself and or energy in the production room back to the production room and/or the air inlet of the fresh air unit, avoiding energy waste, and reducing the energy required for the fresh air to be processed by the fresh air unit. Save energy.
  • the exhaust air reuse device includes a process exhaust air reuse unit for recovering and transporting the available process exhaust air in the production room back to the production room.
  • the process exhaust air reuse unit includes: an air inlet section connected to an outlet of the production room for exhausting available process exhaust air, and an inlet for receiving available process exhaust air from the production room A connected air outlet section and a fan section located between the air inlet section and the air outlet section.
  • At least one filter section is provided between the air inlet section and the fan section, and/or at least one filter section is provided between the fan section and the air outlet section.
  • the filter section provided between the air inlet section and the fan section includes a chemical filter section and/or a medium-efficiency filter section.
  • the filter section provided between the fan section and the air outlet section includes a high efficiency filter section.
  • it further includes a connecting air pipe, one end of the connecting air pipe is connected to the air outlet section, and the other end is connected to the production room.
  • it further includes an air outlet section air pipe, the connecting air pipe is provided with a first electric sealing valve, and one end of the air outlet section air pipe is connected to the air outlet section and the first electric sealing valve.
  • the connecting air pipe is connected between the air outlet section, the other end of the air outlet section air pipe is connected to the atmosphere outside the production room, the air outlet section air pipe is provided with a second electric closed valve, and the connecting air pipe is located
  • a hazardous substance probe is arranged in the portion between the air outlet section and the first electric closed valve, and the hazardous substance probe is signally connected to a controller, and the controller is respectively connected to the first electric closed valve and the first electric closed valve. Signal connection of two electric closed valves for respectively controlling the opening and closing of the first electric closed valve and the second electric closed valve;
  • the controller controls the first electric sealing valve to close and the second electric sealing valve to open.
  • the process exhaust air reuse unit is installed in a ventilation and air conditioning machine room, in a suspended ceiling, in a technical mezzanine under a clean production plant, or in a process room.
  • the air inlet of the fresh air unit is connected with an air inlet duct for introducing outdoor fresh air
  • the exhaust air reuse device includes a first exhaust fan and a first exhaust air connected to the outlet of the first exhaust fan
  • the first exhaust pipe is in communication with the atmosphere outside the production room, and the first exhaust pipe is provided with a first electric valve for controlling the air volume of the first exhaust pipe.
  • the second air exhaust pipe cooperates with the air inlet pipe to transfer the available process exhaust air itself and/or energy to the outdoor fresh air at the air inlet of the fresh air unit, and the second air exhaust pipe is provided with control The second electric valve for the air volume of the second exhaust duct.
  • it further includes a temperature detector installed at the air inlet of the fresh air unit or in the fresh air unit for detecting the temperature of the fresh air at the air inlet of the fresh air unit, the temperature detector Signal connection with a controller, the controller is respectively connected with the first electric valve and the second electric valve signal, the controller is used for the temperature detected by the temperature detector and a preset temperature to control the first The degree of opening and closing of an electric valve and a second electric valve.
  • the second exhaust duct directly communicates with the intake duct.
  • a filter section is provided in the first exhaust fan, on the second exhaust duct, or in the fresh air unit.
  • a filter is provided in the first exhaust fan, the second exhaust duct, or the filter section in the fresh air unit.
  • the air inlet of the first exhaust fan communicates with the air outlet of the process equipment through the hot exhaust main pipe.
  • a harmful substance probe is provided in the hot exhaust main pipe; the harmful substance probe is signally connected to a controller, and the controller is signally connected to the first electric valve and the second electric valve;
  • the second electric valve When the harmful substance probe detects the presence of harmful substances in the hot exhaust main pipe, the second electric valve is closed and the first electric valve is fully opened.
  • it further includes a heat recovery device, the air inlet of the heat recovery device is in communication with the first exhaust duct, the air outlet of the heat recovery device is in communication with the atmosphere outside the production room, and the first The exhaust duct cooperates with the air inlet of the fresh air unit through the heat recovery device to indirectly transfer the available process exhaust energy in the first air exhaust duct to the outdoor fresh air at the air inlet of the fresh air unit.
  • the heat recovery device includes one or a combination of a runner type, a plate type, a fin type, a heat pipe type, a shell and tube type, and an intermediate heat medium type.
  • it further includes a heat recovery device, and the second air exhaust pipe cooperates with the air inlet pipe through the heat recovery device to indirectly transfer the energy of the process exhaust air available in the second air exhaust pipe to Outdoor fresh air at the air inlet of the fresh air unit.
  • the heat recovery device includes one or a combination of a runner type, a plate type, a fin type, a heat pipe type, a shell and tube type, and an intermediate heat medium type.
  • the heat recovery device is arranged in the fresh air blower unit, or arranged on the second exhaust air duct, or arranged in the first exhaust fan.
  • it further includes a second exhaust fan for exhausting unusable process exhaust air in the production room.
  • Figure 1 is a schematic structural diagram of a ventilation system in the prior art
  • FIG. 2 is a schematic structural diagram of an energy-saving ventilation system using process exhaust provided by an embodiment of the application;
  • Fig. 3 is a schematic structural diagram of a functional section of a process exhaust and reuse unit provided by an embodiment of the application;
  • FIG. 4 is a schematic structural diagram of another energy-saving ventilation system using process exhaust provided by an embodiment of the application.
  • FIG. 5 is a schematic structural diagram of another energy-saving ventilation system using process exhaust provided by an embodiment of the application.
  • Figure 6 is a partial enlarged view of area C in Figure 4.
  • FIG. 7 is a schematic structural diagram of another energy-saving ventilation system using process exhaust provided by an embodiment of the application.
  • Figure 8 is a schematic structural diagram of another energy-saving ventilation system using process exhaust provided by an embodiment of the application.
  • FIG. 9 is a schematic structural diagram of another energy-saving ventilation system using process exhaust provided by an embodiment of the application.
  • Fig. 10 is a schematic structural diagram of another energy-saving ventilation system using process exhaust provided by an embodiment of the application.
  • the energy-saving ventilation system includes:
  • Fresh air unit 1 fresh air unit 1 is used to process outdoor fresh air and send it to the production room;
  • the exhaust air recycling device 2 is used to transfer the available process exhaust air itself and/or energy in the production room back to the production room and/or the air inlet of the fresh air unit 11.
  • the energy-saving ventilation system includes a fresh air unit 1 and an exhaust air recycling device 2.
  • the fresh air unit 1 can send outdoor fresh air to the production room (production plant) after filtering, cooling, heating, humidifying, etc., Different process equipment 3 in the production room discharges different process exhaust air, some process equipment 03 process exhaust air is available process normal temperature exhaust air, and some process equipment process exhaust air is available process high temperature or low temperature
  • the exhaust air and exhaust air reuse device 2 can transfer the available process exhaust air itself and/or energy in the production room back to the production room and/or the air inlet of the fresh air unit, avoiding energy waste and reducing the fresh air unit 1 Deal with the energy required for fresh air, thereby saving energy.
  • the available process exhaust air can be normal temperature exhaust air, high temperature exhaust air and low temperature exhaust air.
  • the energy recovered from high temperature exhaust air is the heat of exhaust air, and the energy recovered from low temperature exhaust air is exhaust air. Cooling capacity.
  • the exhaust air reuse device 2 may be a process exhaust air reuse unit 21 for recovering and transporting available process exhaust air in the production room to the production room.
  • the available process exhaust air may be normal temperature exhaust air whose temperature and humidity match the environment in the production room.
  • the production room is equipped with two types of process exhaust outlets. After the fresh air is filtered, cooled, heated, and humidified by the fresh air unit 1, it is sent to the production room.
  • the production room cannot be used.
  • the process exhaust air A is directly discharged into the atmosphere, and the air volume is QA.
  • the process exhaust air B room temperature exhaust air
  • the air volume is QB, the fresh air volume that needs to be supplemented by fresh air unit 1 is QA.
  • the unusable process exhaust air in the production room is directly discharged into the atmosphere, the air volume is QA, and the available process exhaust air B is also directly discharged into the atmosphere, and the air volume is QB, the fresh air volume to be supplemented by the fresh air unit 1 is QA+QB.
  • the ventilation system in the embodiment of the present application the fresh air volume to be supplemented by the fresh air unit 1 is QA, and the newly supplemented air volume is reduced QB.
  • the available room temperature exhaust air is sent back to the production room for reuse by using the process exhaust air recycling unit 21, which reduces the fresh air volume in the production room, reduces the heat and cold of the fresh air, and also The capacity of the fresh air unit 1 is reduced and energy is saved.
  • some process exhaust air that meets the requirements for temperature and humidity and cleanliness is directly sent back to the production room, and for some process exhaust air that meets the requirements for temperature and humidity but does not meet the requirements for cleanliness
  • the wind is filtered and sent to the production room.
  • the process exhaust air also needs to be processed, the processing process is simpler than the fresh air process of the fresh air unit 1, and requires less energy.
  • the production room in the above embodiment may include a clean room.
  • the process exhaust air reuse unit 21 in the embodiment of the present application may include: The inlet section 211 connected with the outlet of the available process exhaust air and the outlet section 216 communicated with the inlet of the production room for receiving the available process exhaust air; the fan located between the inlet section 211 and the outlet section 216 ⁇ 214. If the available process exhaust air temperature, humidity and cleanliness meet the requirements, after this type of process exhaust enters the process exhaust recycling unit 21, it is directly sent back to the production room through the air outlet section 216 under the action of the fan section 214. use.
  • At least one filter section may be provided between the air inlet section 211 and the fan section 214 or between the fan section 214 and the air outlet section 216, or between the air inlet section 211 and the fan section 214, and the fan section 214 and At least one filter section may be provided between the air outlet sections 216.
  • the available process exhaust air enters from the air inlet section 211, and the process exhaust air whose cleanliness does not meet the requirements is sent back to the production room through the filter section to ensure the cleanliness of the production room.
  • the filter section provided between the air inlet section 211 and the fan section 214 may include, but is not limited to: a chemical filter section 212 and/or a medium-efficiency filter section 213, and the chemical filter section 212 can absorb Mixed with molecular-level pollutants in the process exhaust, the medium-efficiency filter section 213 can further filter the process exhaust containing particulate matter, so that the recycled process exhaust meets the clean requirements.
  • the filter section provided between the fan section 214 and the air outlet section 216 may include, but is not limited to, a high-efficiency filter section 215.
  • the process exhaust passing through the fan section 214 is further efficiently filtered to ensure the process of reuse
  • the exhaust air can meet the cleanliness requirements, so that it can be sent back to the production room for reuse.
  • each filter section of the process exhaust air reuse unit 21 is selected and set according to the nature of exhaust air and the requirements of the production room, and is not a mandatory section, and the position of each filter section can be adjusted according to requirements .
  • purifying the available process exhaust air can not only include filter processing, but also other types of filter purification forms (such as water washing, adsorption, absorption, combustion, etc.).
  • the process exhaust air recycling unit 21 can be installed in a ventilating and air-conditioning machine room, or installed in a suspended ceiling, in a technical mezzanine under a clean production plant, or in a process room and other locations that meet the installation requirements.
  • the energy-saving ventilation system in the embodiment of the present application further includes a connecting air duct 24, which connects one end of the air duct 24 to the air outlet The section 216 is connected, and the other end is connected to the production room, so that the available process exhaust air is returned to the production room through the connecting duct.
  • the air outlet section air pipe 25 can be connected to the connecting air pipe.
  • the connecting air pipe 24 is provided with a first electric closed valve 241
  • One end of the section air pipe 25 is connected to the connecting air pipe 24 between the air outlet section 216 and the first electric closed valve 241
  • the other end of the air outlet section air pipe 25 is connected to the atmosphere outside the production room.
  • the air outlet section air pipe A second electric sealing valve 251 is provided on the 25, and a hazardous substance probe 242 is provided in the part of the connecting air pipe 24 between the air outlet section 216 and the first electric closing valve 241.
  • the hazardous substance probe 242 is connected to the controller signal to control
  • the actuators are respectively connected with the first electric sealing valve 241 and the second electric sealing valve 251 in signal connection for controlling the opening and closing of the first electric sealing valve 241 and the second electric sealing valve 251 respectively.
  • the controller controls the first electric closed valve to open and controls the second electric closed valve to close, so as to recycle the available process exhaust air; if the hazardous substance detector detects hazardous substances , The controller controls the first electric closed valve to close, and controls the second electric closed valve to open, so that the contaminated and available process exhaust air is directly discharged from the atmosphere and avoid polluting the environment in the production room.
  • the process exhaust air reuse unit 21 is installed in the production room or in the technical mezzanine under the clean production plant.
  • the air outlet section 216 of the process exhaust air reuse unit 21 can also be directly set in the form of outlet air to directly connect the return air. Use the wind to send it to the production room or the technical mezzanine under the clean production plant.
  • the air inlet of the fresh air unit 1 is connected with an air inlet duct 11 for introducing outdoor fresh air
  • the exhaust air reuse device 2 may include a first exhaust fan 22 And the first exhaust pipe 41 and the second exhaust pipe 42 connected to the air outlet of the first exhaust fan 22.
  • the first exhaust pipe 41 is connected to the atmosphere outside the production room.
  • the first exhaust pipe 41 is provided with control The first electric valve 411 of the air volume of the first exhaust duct 41, and the second exhaust duct 42 cooperate with the air inlet duct 11 to transfer the available process exhaust air itself and/or energy to the outdoor at the air inlet of the fresh air unit 1
  • the second air exhaust duct 42 is provided with a second electric valve 421 for controlling the air volume of the second air exhaust duct 42.
  • the available process exhaust air can be high temperature exhaust air or low temperature exhaust air.
  • the above-mentioned energy-saving ventilation system includes a fresh air unit 1 and a first exhaust fan 22.
  • the fresh air unit 1 can process the outdoor fresh air and send it into the production room.
  • the first exhaust fan 22 can transfer the available processes generated by the process equipment 3 in the production room. Exhaust air is discharged out of the production room.
  • the first exhaust duct 41 Since the outlet of the first exhaust fan 22 is connected to the first exhaust duct 41 and the second exhaust duct 42, the first exhaust duct 41 is connected to the atmosphere outside the production room, and the second exhaust duct 42 cooperates with the air inlet pipe 11 to transfer the available process exhaust air itself and/or energy to the outdoor fresh air at the air inlet of the fresh air unit 1, when the first electric valve 411 is turned off or closed, and the second electric valve is opened At 421 hours, the available process exhaust air generated by the process equipment 3 can be transmitted through the second exhaust duct 42 to the available process exhaust air itself and/or energy to the outdoor fresh air entering the air inlet of the fresh fan unit 1, which can The energy contained in the process exhaust air is recycled and reused, thereby avoiding energy waste, reducing the energy required by the fresh air unit 1 to process fresh air, and saving energy.
  • the fresh air is supplied by the fresh air unit 1 in winter, and the fresh air needs to be heated in the fresh air unit 1 to reach a suitable temperature before being sent to the production room. It consumes a lot of energy.
  • the first exhaust fan 22 can discharge the high-temperature exhaust air generated by the process equipment 3 in the production plant.
  • the air outlet of the exhaust fan 2 is connected to the first exhaust duct 41 and the second exhaust duct 42, the The first exhaust duct 41 communicates with the atmosphere outside the production plant, and the second exhaust duct 42 cooperates with the air inlet duct 11 to transfer the heat of the high-temperature exhaust air to the outdoor fresh air at the air inlet of the fresh air unit.
  • the high-temperature exhaust air generated by the process equipment 3 can be transferred to the outdoor fresh air entering the air inlet of the fresh air unit 1 through the second exhaust duct 42 , It can increase the temperature of outdoor fresh air at the air inlet of fresh air unit 1, thereby reducing the heating of outdoor fresh air by fresh air unit 1 in winter, achieving the purpose of saving energy; in summer, closing the second electric valve 421 and fully opening the first
  • the electric valve 411 can directly discharge the high-temperature exhaust air generated by the process equipment 3 into the atmosphere without affecting the temperature of the outdoor fresh air at the air inlet of the fresh air unit 1.
  • the available exhaust air can also be low-temperature exhaust air.
  • the second exhaust duct 42 cooperates with the air inlet duct 11 to transfer the cold energy of the low-temperature exhaust air to the outdoor fresh air at the air inlet of the fresh air inlet group.
  • the low-temperature exhaust air generated by the process equipment 3 can be passed through the second exhaust duct 42 to transfer the cold to the outside of the air inlet of the fresh air unit 1
  • the fresh air can reduce the temperature of the outdoor fresh air at the air inlet of the fresh air unit 1, thereby reducing the cooling capacity of the outdoor fresh air by the fresh air unit 1 in summer, and achieve the purpose of saving energy.
  • a temperature detector 12 can also be provided in the ventilation system. As shown in Figure 7, the temperature detector 12 is installed in the fresh air unit 1.
  • the air inlet or the fresh air unit 1 is used to detect the temperature of the fresh air at the air inlet of the fresh air unit.
  • the fresh air at the air inlet of the fresh air unit is the fresh air after receiving the energy of the process exhaust.
  • the temperature detector 12 is connected to the controller signal ,
  • the controller is signally connected to the first electric valve 411 and the second electric valve 421, and the controller is used to control the opening and closing of the first electric valve 411 and the second electric valve 421 according to the temperature detected by the temperature detector and the preset temperature degree.
  • the preset temperature is the required temperature under the lowest energy consumption of the fresh air unit. If the available process exhaust is high-temperature exhaust, the heat of the high-temperature exhaust passes through the second exhaust duct 42 and the inlet duct 11 Cooperating with the outdoor fresh air delivered to the air inlet of the fresh air unit, the temperature detector detects the temperature of the fresh air at the air inlet of the fresh air unit, and the controller compares the preset temperature with the temperature of the fresh air at the air inlet of the fresh air unit, according to the difference value , The controller respectively controls the opening and closing degrees of the first electric valve and the second electric valve.
  • the controller controls to open or fully open the second electric valve 421 , Increase the air volume in the second exhaust duct, and close or close the first electric valve 411 to reduce the air volume in the first exhaust duct, thereby increasing the amount of energy recovery; or, the air inlet of the fresh air unit If the temperature of the fresh air is higher than the preset temperature, the controller controls to close down or close the second electric valve 421, reduce the air volume in the second exhaust pipe, and open or fully open the first electric valve to increase the first exhaust air The air volume in the pipe reduces the energy recovery.
  • the second exhaust duct 42 can be directly connected to the intake duct 11 of the fresh air blower unit 1, to exhaust the available process air itself and its energy
  • the outdoor fresh air directly transmitted to the air inlet of the fresh air unit 1 can reduce the energy required by the fresh air unit 1 to process the fresh air, save energy, and can reduce the fresh air volume of the production room, thereby reducing the capacity of the fresh air unit 1 and saving energy.
  • the second exhaust duct when the second exhaust duct is directly connected with the intake duct, the part of the process exhaust air that does not meet the requirements for cleanliness needs to be filtered and then sent back to the production room, then the first exhaust fan 22 and the second exhaust air
  • the pipe 42 or the fresh air unit 1 may be provided with a filter section. In the case where there are impurities such as dust in the available process exhaust air, the impurities existing in the exhaust air can be prevented from entering the production room.
  • a filter is provided in the first exhaust fan 22, on the second exhaust duct 42 or in the filter section of the fresh air unit 1.
  • the filter filters the available process exhaust air generated by the process equipment 3.
  • the filter section can also use various other types of filtering methods to filter the exhaust air, such as water washing, adsorption, etc., which are not limited here.
  • one or more filter sections can be provided in the first exhaust fan 22, on the second exhaust pipe 42, or on the fresh air unit 1, and each filter section can be a different filtering function section to achieve different filtering forms.
  • the specific filter section is set according to the actual situation of the production plant, and there is no restriction here.
  • the air inlet of the first exhaust fan 22 is connected to the air outlet of the process equipment 3 through the hot exhaust main pipe 43.
  • a hazardous substance probe 431 can be provided in the hot exhaust main pipe 43.
  • the harmful substance probe 431 is connected to the controller signal, and the controller is respectively connected to the first electric valve 411 and the second electric valve 421; when the harmful substance probe 431 detects the harmful substance in the hot exhaust main pipe, the second electric valve 421 The first electric valve 421 is closed and fully opened. Because process production requires that there are process equipment 3 that uses hazardous chemicals in the production room to discharge unusable process exhaust. If such process equipment 3 leaks, hazardous substances may enter the hot exhaust main pipe 43, which may lead to Hazardous substances are transported to the air inlet of fresh air unit 1.
  • a hazardous material probe 431 can be installed in the hot exhaust main pipe 43, and when the hazardous material probe 431 detects that there is in the hot exhaust main pipe 43 In the event of harmful substances, the controller will control the second electric valve 421 to close and the first electric valve 411 to fully open, so that the process exhaust of the process equipment 3 is discharged into the atmosphere to avoid polluting the environment in the production room.
  • the controller will give priority to respond to the signal sent by the harmful substance probe. If the harmful substance probe detects a harmful substance, the second electric valve will be closed and fully opened. For the second electric valve, if the harmful substance probe does not detect the harmful substance, the controller responds to the signal sent by the temperature probe.
  • the process exhaust air be directly mixed with outdoor fresh air to save energy, but also the energy (cold heat) of the exhaust air generated by the process equipment 3 can be transferred to Outdoor fresh air at the air inlet of fresh air unit 1.
  • the second exhaust duct 42 is directly connected to the air inlet duct 11, and the first exhaust duct 41 is in communication with the atmosphere outside the production room through the heat recovery device 51, specifically, the heat recovery device
  • the air inlet of 51 communicates with the first exhaust duct 41
  • the outlet of the heat recovery device 51 communicates with the atmosphere outside the production room
  • the first exhaust duct 41 matches the air inlet of the fresh air unit 11 through the heat recovery device 51 to connect the
  • the energy of the available process exhaust in an exhaust duct 41 is indirectly transferred to the outdoor fresh air at the air inlet of the fresh air unit.
  • the available process exhaust may be contaminated by harmful substances and cannot be directly recycled.
  • the hazardous substance probe 431 can detect the presence of harmful substances in the process exhaust.
  • the controller controls the first electric valve 411 to close and the second electric valve 421 to open.
  • the high temperature (or low temperature) clean exhaust air can be directly mixed with the outdoor fresh air, and the energy is directly transferred to the outdoor fresh air.
  • the controller controls the second electric valve 421 to close and the first electric valve 411 to open, and indirectly transfers the energy of the high temperature (or low temperature) exhaust air containing the pollutants to the fresh air unit through the heat recovery device Outdoor fresh air at the air inlet.
  • a temperature detector can also be set at the air inlet of the fresh air unit 11 or in the fresh air unit 11 at the same time.
  • the heat recovery unit 51 can adjust the recovery amount of the process exhaust energy. When the process in the hot exhaust main pipe is detected When the exhaust air is high-temperature (or low-temperature) clean exhaust air without pollutants, the heat recovery device 51 does not recover the energy of the process exhaust air, and the controller controls the first electric motor separately according to the temperature detected by the temperature detector and the preset temperature.
  • the degree of opening and closing of the valve 411 and the second electric valve 421 adjusts the amount of energy recovery of the process exhaust, and when it is detected that the process exhaust in the hot exhaust main pipe is process exhaust containing pollutants, the controller controls The second electric valve 421 is closed and the first electric valve 411 is fully opened, so that the heat recovery device 51 recovers the energy of the process exhaust in the first exhaust duct 41.
  • the above-mentioned heat recovery device may be one or a combination of multiple forms such as a runner type, a plate type, a fin type, a heat pipe type, a shell and tube type, and an intermediate heat medium type, etc., which is not limited here.
  • the aforementioned energy-saving ventilation system includes a heat recovery device 52.
  • the second exhaust duct is not directly connected with the intake duct of the fresh air unit.
  • the second exhaust duct 42 cooperates with the intake duct 11 through the heat recovery device 52 to exhaust the high temperature or low temperature in the second exhaust duct 42
  • the energy is indirectly transferred to the outdoor fresh air at the air inlet of fresh air unit 1.
  • the second exhaust duct 42 communicates with the air inlet of the heat recovery device 52
  • the air outlet of the heat recovery device 52 communicates with the atmosphere outside the production room, and the heat recovery device 52 can exhaust the process air in the second exhaust duct 42
  • the energy is transferred to the outdoor fresh air at the air inlet of the fresh air unit 11.
  • the outdoor fresh air temperature at the air inlet of the fresh air unit 1 is increased or decreased, thereby reducing the heating or cooling amount of the outdoor fresh air by the fresh air unit 1 to achieve the purpose of saving energy.
  • the above-mentioned heat recovery device 52 may be one or a combination of multiple forms such as a runner type, a plate type, a fin type, a heat pipe type, a shell and tube type, and an intermediate heat medium type, etc., which are selected according to actual conditions, and are not limited here. .
  • the aforementioned heat recovery device 52 may be arranged in the fresh air blower unit 1, or on the second exhaust duct 42, or in an exhaust fan.
  • the installation position of the heat recovery device only needs to realize the installation and operation function of the heat recovery device, and there is no specific restriction.
  • the exhaust air reuse device may include the process exhaust air reuse unit 21 and the first The combination of a row of fans 22, a first exhaust pipe 41 and a second exhaust pipe 42 can use the process exhaust air recycling unit 21 to filter and send the normal temperature exhaust air in the production room into the production room after filtering. Through the first exhaust fan 22, the second exhaust pipe 42, and/or the heat recovery device, the energy of the high temperature exhaust air or low temperature exhaust air discharged from the process equipment can be transferred to the fresh air at the air inlet of the fresh air blower unit to realize energy reuse. save energy.
  • the ventilation system further includes a second exhaust fan 23 for exhausting unusable process exhaust air in the production room. .

Abstract

本申请提供一种利用工艺排风的节能通风系统。该节能通风系统包括新风机组，所述新风机组用于将室外新风处理后送入生产房间；排风回用装置，所述排风回用装置用于将生产房间内可利用的工艺排风的本身和/或能量传递回所述生产房间和/或新风机组进风口。该节能通风系统中，排风回用装置可以将生产房间内可利用的工艺排风的本身和/或能量传递回生产房间或新风机组进风口，使得工艺排风本身或者工艺排风中含有的能量被回收再利用，避免了能源的浪费，且减少了新风机组处理新风需要的能量，节省了能源。

Description

一种利用工艺排风的节能通风系统
相关申请的交叉引用
本申请要求在2019年07月22日提交中国专利局、申请号为201910662624.2、申请名称为“一种利用工艺热排风的通风系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中；本申请要求在2019年07月22日提交中国专利局、申请号为201910663309.1、申请名称为“一种利用工艺排风的通风系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及工业生产技术领域，特别涉及一种利用工艺排风的节能通风系统。
背景技术
集成电路生产、平板显示生产、光电子器件等生产领域因为工艺生产的需求存在各类的工艺排风，一般此类工艺排风直接排进大气中。然而，如图1所示，生产房间(生产厂房)04内工艺设备03排出的工艺排风中有相当部分是十分清洁(或仅含有少量粉尘)的常温排风，或者是十分清洁(或仅含有少量粉尘)的高温(或低温)排风，如果将工艺排风直接通过排风机02排出的话，排风中含有的能量(冷热量)没有被利用，则造成能源的浪费；同时，为了维持厂房环境的参数要求，还需要为此类排风设置相应的新风机组01，新风需要经过过滤、冷却、加热、加湿等处理，导致消耗大量能源。
发明内容
本申请实施例提供了一种利用工艺排风的节能通风系统，能够充分利用工艺排风，将可利用的工艺排风的本身和/或能量传送回生产房间和/或新风机组进风口以循环利用，节省了能源。
本申请提供了一种利用工艺排风的节能通风系统，所述节能通风系统包括：
新风机组，所述新风机组用于将室外新风处理后送入生产房间；
排风回用装置，所述排风回用装置用于将生产房间内可利用的工艺排风的本身和/或能量传递回所述生产房间和/或新风机组进风口。
本申请实施例提供的节能通风系统中，包括新风机组和排风回用装置，新风机组可以将室外新风经过滤、冷却、加热、加湿等处理后送入生产房间(生产厂房)，生产房间内的不同的工艺设备排出不同的工艺排风，有的工艺设备的工艺排风为可利用的工艺常温排风，有的工艺设备的工艺排风为可利用的工艺高温或低温排风，排风回用装置可以将生产房间内可利用的工艺排风的本身和或能量传递回生产房间和/或新风机组进风口，避免了能源的浪费，且减少了新风机组处理新风的需要的能量，进而节省了能源。
可选地，所述排风回用装置包括用于将所述生产房间内可利用的工艺排风回收并输送回所述生产房间的工艺排风回用机组。
可选地，所述工艺排风回用机组包括：与所述生产房间用于排出可利用工艺排风的出口连通的进风段、与所述生产房间用于接收可利用工艺排风的入口连通的出风段、以及位于所述进风段与所述出风段之间的风机段。
可选地，所述进风段和所述风机段之间设有至少一个过滤段，和/或，所述风机段与所述出风段之间设有至少一个过滤段。
可选地，所述进风段和所述风机段之间设有的过滤段包括化学过滤段和/或中效过滤段。
可选地，所述风机段与所述出风段之间设有的过滤段包括高效过滤段。
可选地，还包括连接风管，所述连接风管的一端与所述出风段连接，另一端与所述生产房间连通。
可选地，还包括出风段风管，所述连接风管上设置有第一电动密闭阀，所述出风段风管的一端与位于所述出风段与所述第一电动密闭阀之间的所述连接风管连接，所述出风段风管的另一端与生产房间外的大气连通，所述出 风段风管上设置有第二电动密闭阀，所述连接风管位于所述出风段与所述第一电动密闭阀之间的部分内设置有有害物探头，所述有害物探头与控制器信号连接，所述控制器分别与所述第一电动密闭阀和第二电动密闭阀信号连接以用于分别控制所述第一电动密闭阀和第二电动密闭阀的开启和关闭；
当所述有害物探头检测到所述连接风管内存在有害物时，所述控制器控制所述第一电动密闭阀关闭且所述第二电动密闭阀开启。
可选地，所述工艺排风回用机组安装于通风空调机房内、吊顶内、洁净生产厂房下技术夹层内，或者工艺房间内。
可选地，所述新风机组的进风口连接有用于引入室外新风的进风管道，所述排风回用装置包括第一排风机以及与所述第一排风机出风口连接的第一排风管和第二排风管，所述第一排风管道与生产房间外的大气连通，所述第一排风管道上设置有用于控制所述第一排风管道风量的第一电动阀门，所述第二排风管道与所述进风管道配合以将可利用的工艺排风的本身和/或能量传递给新风机组进风口处的室外新风，所述第二排风管道上设置有用于控制所述第二排风管道风量的第二电动阀门。
可选地，还包括温度探测器，所述温度探测器安装于所述新风机组的进风口处或者新风机组内以用于检测所述新风机组进风口处的新风的温度，所述温度探测器与控制器信号连接，所述控制器分别与所述第一电动阀门和第二电动阀门信号连接，所述控制器用于根据所述温度探测器探测到的温度和预设温度分别控制所述第一电动阀门和第二电动阀门的开合程度。
可选地，所述第二排风管道直接与所述进风管道相连通。
可选地，所述第一排风机内、所述第二排风管道上或者所述新风机组内设置有过滤段。
可选地，所述第一排风机内、所述第二排风管道上或者所述新风机组内的过滤段设置有过滤器。
可选地，所述第一排风机的进风口通过热排风主管与工艺设备的排风口连通。
可选地，所述热排风主管内设置有有害物探头；所述有害物探头与控制器信号连接，所述控制器分别与所述第一电动阀门和第二电动阀门信号连接；
当所述有害物探头检测到所述热排风主管内存在有害物时，所述第二电动阀门关闭且所述第一电动阀门全开。
可选地，还包括热回收器，所述热回收器的进风口与所述第一排风管道连通，所述热回收器的出风口与所述生产房间外的大气连通，所述第一排风管道通过所述热回收器与所述新风机组进风口处配合以将所述第一排风管道内可利用的工艺排风的能量间接传递给新风机组进风口处的室外新风。
可选地，所述热回收器包括转轮式、板式、翅片式、热管式、壳管式以及中间热媒式之一或组合。
可选地，还包括热回收器，所述第二排风管道通过所述热回收器与所述进风管道配合以将所述第二排风管道内可利用工艺排风的能量间接传递给新风机组进风口处的室外新风。
可选地，所述热回收器包括转轮式、板式、翅片式、热管式、壳管式以及中间热媒式之一或组合。
可选地，所述热回收器设置于所述新风机组内，或者设置于所述第二排风管道上，或者设置于所述第一排风机内。
可选地，还包括用于将所述生产房间内不可利用的工艺排风排出的第二排风机。
附图说明
图1为现有技术中的一种通风系统的结构示意图；
图2为本申请实施例提供的一种利用工艺排风的节能通风系统的结构示意图；
图3为本申请实施例提供的一种工艺排风回用机组功能段的结构示意图；
图4为本申请实施例提供的另一种利用工艺排风的节能通风系统的结构示意图；
图5为本申请实施例提供的另一种利用工艺排风的节能通风系统的结构示意图；
图6为图4中区域C的局部放大图；
图7为本申请实施例提供的另一种利用工艺排风的节能通风系统的结构示意图；
图8为本申请实施例提供的另一种利用工艺排风的节能通风系统的结构示意图；
图9为本申请实施例提供的另一种利用工艺排风的节能通风系统的结构示意图；
图10为本申请实施例提供的另一种利用工艺排风的节能通风系统的结构示意图。
图标：
01-新风机组；02-排风机；03-工艺设备；04-生产房间；
1-新风机组；11-进风管道；12-温度探测器；2-排风回用装置；21-工艺排风回用机组；211-进风段；212-化学过滤段；213-中效过滤段；214-风机段；215-高效过滤段；216-出风段；22-第一排风机；23-第二排风机；24-连接风管；241-第一电动密闭阀；242-有害物探头；25-出风段风管；251-第二电动密闭阀；3-工艺设备；41-第一排风管道；411-第一电动阀门；42-第二排风管道；421-第二电动阀门；43-热排风主管；431-有害物探头；51、52-热回收器。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
请参考图2和图5，本申请提供了一种利用工艺排风的节能通风系统，节能通风系统包括：
新风机组1，新风机组1用于将室外新风处理后送入生产房间；
排风回用装置2，排风回用装置2用于将生产房间内可利用的工艺排风的 本身和/或能量传递回生产房间和/或新风机组11进风口。
本申请实施例提供的节能通风系统中，包括新风机组1和排风回用装置2，新风机组1可以将室外新风经过滤、冷却、加热、加湿等处理后送入生产房间(生产厂房)，生产房间内的不同的工艺设备3排出不同的工艺排风，有的工艺设备03的工艺排风为可利用的工艺常温排风，有的工艺设备的工艺排风为可利用的工艺高温或低温排风，排风回用装置2可以将生产房间内可利用的工艺排风的本身和/或能量传递回生产房间和/或新风机组进风口，避免了能源的浪费，且减少了新风机组1处理新风的需要的能量，进而节省了能源。
需要说明的是，可利用的工艺排风可以为常温排风、高温排风和低温排风，高温排风的被回收的能量为排风的热量，低温排风被回收的能量为排风的冷量。
在一种可能的实施方式中，如图2所示，排风回用装置2可以为用于将生产房间内可利用的工艺排风回收并输送回生产房间的工艺排风回用机组21。此处，可利用的工艺排风可以为温湿度与生产房间内环境相匹配的常温排风。
上述节能通风系统中，如图2所示，生产房间设置了两类工艺排风出口，新风机组1对新风进行过滤、冷却、加热、加湿等处理后，送进生产房间，生产房间内不能利用的工艺排风A直接排入大气，风量为QA，可以直接利用的工艺排风B(常温排风)被工艺排风回用机组21直接送回房间或者经过过滤处理后送回房间，风量为QB，新风机组1需要补充的新风量为QA。而现有技术中的通风系统中，如图1所示，生产房间内不能利用的工艺排风直接排入大气，风量为QA，可利用的工艺排风B也被直接排入大气，风量为QB，新风机组1需要补充的新风量为QA+QB，相比现有技术中的通风系统，本申请实施例中的通风系统，新风机组1需要补充的新风量为QA，新补充的风量减少了QB。
因此，上述实施方式中，通过利用工艺排风回用机组21将可利用的常温排风送回生产房间以再次利用，减少了生产房间的新风量，减少了处理新风的冷热量，同时也减少了新风机组1容量，节省了能源。
具体地，本申请实施例中，可利用的工艺排风中，对于温湿度洁净度符合要求的一部分工艺排风直接送回生产房间，对于温湿度符合要求、洁净度不符合要求的一部分工艺排风经过过滤处理后再送入生产房间内。此处，虽然对工艺排风也需要进行处理，但其处理工艺比新风机组1处理新风过程简单，所需消耗的能源也更少。
具体地，上述实施例中的生产房间可以包括洁净室。
进一步地，为了使得可利用的常温排风能够全部符合要求再被送回生产房间内，可参考图3，本申请实施例中的工艺排风回用机组21可以包括：与生产房间用于排出可利用的工艺排风的出口连通的进风段211和与生产房间用于接收可利用的工艺排风的入口连通的出风段216；位于进风段211与出风段216之间的风机段214。若可利用的工艺排风温湿度和洁净度均符合要求时，此类工艺排风进入工艺排风回用机组21后，在风机段214的作用下通过出风段216直接送回生产房间再次使用。
进一步地，位于进风段211和风机段214之间或者风机段214与出风段216之间可至少设有一个过滤段，或者进风段211与风机段214之间、以及风机段214与出风段216之间各可设有至少一个过滤段。可利用的工艺排风从进风段211进入，洁净度不符合要求的工艺排风则经过过滤段再被送回生产房间内，以保证此生产房间的洁净度。
可选地，以图3为例，进风段211与风机段214之间设有的过滤段可以包括但不限于：化学过滤段212和/或中效过滤段213，化学过滤段212可吸附混入工艺排风中分子级污染物，中效过滤段213可对含有颗粒物工艺排风进一步过滤，以使回用的工艺排风达到洁净的要求。
可选地，风机段214与出风段216之间设有的过滤段可以包括但不限于高效过滤段215，对经过风机段214的工艺排风进一步地进行高效过滤，以确保回用的工艺排风能够达到洁净度的要求，以便送回生产房间再次使用。
需要说明的是，本申请实施例中，工艺排风回用机组21的各过滤段均根据排风性质和生产房间要求选择设置，不是必须配置的组段，并且各过滤段 位置可以根据需求调整。同时，对可利用的工艺排风进行净化处理，不仅可以包括过滤器的过滤处理，还可以采用其他类型的过滤净化形式(例如水洗、吸附、吸收、燃烧等)。
具体地，本申请实施例中，工艺排风回用机组21可安装于通风空调机房内，或者安装在吊顶内、洁净生产厂房下技术夹层内，或者工艺房间内等任何满足安装要求的位置。
具体地，当工艺排风回用机组21安装于通风空调机房内，或者安装在吊顶内时，本申请实施例中的节能通风系统还包括连接风管24，连接风管24的一端与出风段216连接，另一端与生产房间连通，以使可利用的工艺排风通过连接风管回到生产房间内。
在实际应用中，因为工艺生产需求生产房间内存在有使用有害化学品的工艺设备，排出具有有害物质的工艺排风，如果具有有害物质的工艺排风发生泄漏，有可能污染可利用的工艺排风，为了避免被污染的工艺排风被回收利用，可以在连接风管上连接出风段风管25，如图4所示，连接风管24上设置有第一电动密闭阀241，出风段风管25的一端与位于出风段216与第一电动密闭阀241之间的连接风管24连接，出风段风管25的另一端与生产房间外的大气连通，出风段风管25上设置有第二电动密闭阀251，连接风管24位于出风段216与第一电动密闭阀241之间的部分内设置有有害物探头242，有害物探头242与控制器信号连接，控制器分别与第一电动密闭阀241和第二电动密闭阀251信号连接以用于分别控制第一电动密闭阀241和第二电动密闭阀251的开启和关闭。如果有害物探头242没有检测到有害物质，则控制器控制第一电动密闭阀开启，且控制第二电动密闭阀关闭，进行可利用工艺排风的回收利用；如果有害物探测器检测到有害物质，则控制器控制第一电动密闭阀关闭，且控制第二电动密闭阀开启，使得被污染的可利用的工艺排风直接排除大气，避免污染生产房间内的环境。
具体地，工艺排风回用机组21安装于生产房间内、或者洁净生产厂房下技术夹层内，工艺排风回用机组21的出风段216还可以直接设置为出口风的 形式，直接将回用风送到生产房间内或洁净生产厂房下技术夹层。
在另一种可能的实施方式中，如图5和图6所示，新风机组1的进风口连接有用于引入室外新风的进风管道11，排风回用装置2可以包括第一排风机22以及与第一排风机22出风口连接的第一排风管41和第二排风管42，第一排风管道41与生产房间外的大气连通，第一排风管道41上设置有用于控制第一排风管道41风量的第一电动阀门411，第二排风管道42与进风管道11配合以将可利用的工艺排风的本身和/或能量传递给新风机组1进风口处的室外新风，第二排风管道42上设置有用于控制第二排风管道42风量的第二电动阀门421。此结构中，可利用的工艺排风可以为高温排风或者低温排风。
上述节能通风系统中，包括新风机组1和第一排风机22，新风机组1可以将室外新风处理后送入生产房间，第一排风机22可以将生产房间内工艺设备3产生的可利用的工艺排风排出生产房间，由于第一排风机22的出风口连接有第一排风管道41和第二排风管道42，第一排风管道41与生产房间外的大气连通，第二排风管道42与进风管道11配合，可以将可利用的工艺排风的本身和/或能量传递给新风机组1进风口处的室外新风，当关小或关闭第一电动阀门411、开启第二电动阀门421时，可以使工艺设备3产生的可利用的工艺排风通过第二排风管道42将可利用的工艺排风的本身和/或能量传递给进入新风机组1进风口处的室外新风，能够将工艺排风中含有的能量被回收再利用，避免了能源的浪费，减少了新风机组1处理新风的需要的能量，节省了能源。
在实际应用中，假如可利用的工艺排风为高温排风，冬季时通过新风机组1进行补风，需要在新风机组1内对新风进行加热处理，以达到适宜的温度后送入生产房间，导致消耗大量能源。上述通风系统中，第一排风机22可以将生产厂房内工艺设备3产生的高温排风排出生产厂房，由于排风机2的出风口连接有第一排风管道41和第二排风管道42，第一排风管道41与生产厂房外的大气连通，第二排风管道42与进风管道11配合，可以将高温排风的热量传递给新风机组进风口处的室外新风。具体地，当关小第一电动阀门 411、开启第二电动阀门421时，可以使工艺设备3产生的高温排风通过第二排风管道42将热量传递给进入新风机组1进风口的室外新风，能够提高新风机组1进风口处室外新风的温度，进而减少冬季时新风机组1对室外新风的加热量，达到节约能源的目的；而在夏季时，关闭第二电动阀门421，全开第一电动阀门411，可以将工艺设备3产生的高温排风直接排入大气，不影响新风机组1进风口处的室外新风的温度。
另外，可利用的排风也可以为低温排风，夏季时，第二排风管道42与进风管道11配合，可以将低温排风的冷量传递给新风进组进风口处的室外新风。具体地，当关小第一电动阀门411、开启第二电动阀门421时，可以使工艺设备3产生的低温排风通过第二排风管道42将冷量传递给进入新风机组1进风口的室外新风，能够降低新风机组1进风口处室外新风的温度，进而减少夏季时新风机组1对室外新风的冷却量，达到节约能源的目的。
具体地，在不同的季节，室外的温度不同，生产房间内生产时需要的温度不同，利用排风回用装置回收工艺排风中的能量时，需要控制可利用工艺排风中能量的回收量，减小新风机组消耗的能源，为了调节可利用工艺排风的能量的回收量，通风系统中还可以设置有温度探测器12，如图7所示，温度探测器12安装于新风机组1的进风口处或者新风机组1内以用于检测新风机组进风口处的新风的温度，新风机组进风口处的新风为接收了工艺排风的能量后的新风，温度探测器12与控制器信号连接，控制器分别与第一电动阀门411和第二电动阀门421信号连接，控制器用于根据温度探测器探测到的温度和预设温度分别控制第一电动阀门411和第二电动阀门421的开合程度。
在实际应用中，预设温度为新风机组最低能耗情况下的所需温度，如果可利用的工艺排风为高温排风，高温排风的热量通过第二排风管道42与进风管道11配合传递给新风机组进风口处的室外新风，温度探测器探测到新风机组进风口处的新风的温度，控制器将预设温度与新风机组进风口处的新风的温度做比较，根据相差的数值，控制器分别控制第一电动阀门和第二电动阀门的开合程度，例如，新风机组进风口处的新风的温度低于预设温度，则控 制器控制开大或全开第二电动阀门421，加大第二排风管道内的风量，且关小或关闭第一电动阀门411，减小第一排风管道内的风量，进而增大能量的回收量；或者，新风机组进风口处的新风的温度高于预设温度，则控制器控制关小或关闭第二电动阀门421，减小第二排风管内的风量，且开大或全开第一电动阀门，增大第一排风管道内的风量，进而减小能量的回收量。
可选地，如图5、图6和图7所示，第二排风管道42可以直接与新风机组1的进风管道11相连通，将可利用的工艺排风本身和其带有的能量直接传递给进入新风机组1进风口的室外新风，能够减少新风机组1处理新风的需要的能量，节约能源，并且，能够减少生产房间的新风量，进而减少了新风机组1容量，节省了能源。
进一步地，当第二排风管道与进风管道直接连通时，对洁净度不符合要求的一部分工艺排风需要经过过滤处理后再送回生产房间，则第一排风机22内、第二排风管道42上或者新风机组1上可以设置有过滤段，在可利用的工艺排风中具有粉尘等杂质的情况下，能够避免排风中存在的杂质进入生产房间。
具体地，第一排风机22内、第二排风管道42上或者新风机组1内的过滤段设置有过滤器。过滤器对工艺设备3产生的可利用的工艺排风进行过滤处理。另外，过滤段还可以采用其它各种类型的过滤形式对排风进行过滤，例如，水洗、吸附等，在这里不做限制。
需要说明的是，第一排风机22内、第二排风管道42上、或者新风机组1上可以设置一个或多个过滤段，各个过滤段可以为不同的过滤功能段，实现不同的过滤形式，具体地过滤段的设置根据生产厂房的实际情况而定，在这里不做限制。
上述节能通风系统中，具体地，第一排风机22的进风口通过热排风主管43与工艺设备3的排风口连通。
进一步地，在热排风主管43内可以设置有害物探头431。有害物探头431与控制器信号连接，控制器分别与第一电动阀门411和第二电动阀门421信 号连接；当有害物探头431检测到热排风主管内存在有害物时，第二电动阀门421关闭且第一电动阀门421全开。因为工艺生产需求生产房间内存在有使用有害化学品的工艺设备3，排出不可利用的工艺排风，此类工艺设备3如发生泄漏，则有害物质可能进入热排风主管43内，可导致将有害物质输送到新风机组1进风口，为了避免有害物质进入新风机组1进风口，可以在热排风主管43内设置有害物探头431，而当有害物探头431检测到热排风主管43内存在有害物时，控制器会控制第二电动阀门421关闭且第一电动阀门411全开，使得工艺设备3的工艺排风排入大气中，避免污染生产房间内环境。
需要说明的是，当通风系统中同时设置了温度探测器和有害物探头时，控制器优先响应有害物探头发送的信号，若有害物探头检测到有害物，则关闭第二电动阀门，全开第二电动阀门，若有害物探头没有检测到有害物，则控制器响应温度探测器发送的信号。
可选地，上述节能通风系统中，不仅可以采用工艺排风与室外新风直接混合的方式来节省能源，还可以通过热回收器将工艺设备3产生的排风的能量(冷热量)传递给新风机组1进风口处的室外新风。
一种实施方案中，如图8所示，第二排风管道42直接与进风管道11连通，第一排风管道41通过热回收器51与生产房间外大气连通，具体地，热回收器51的进风口与第一排风管道41连通，热回收器51的出风口与生产房间外的大气连通，第一排风管道41通过热回收器51与新风机组11进风口处配合以将第一排风管道41内可利用的工艺排风的能量间接传递给新风机组进风口处的室外新风。在实际生产中，可利用的工艺排风可能被有害物质污染，不能直接回收利用，通过有害物探头431可以检测工艺排风中是否存在有害物质，若检测到热排风主管43内气体为无污染物的气体，则控制器控制第一电动阀门411关闭、第二电动阀门421打开，高温(或低温)清洁排风可直接与室外新风混合，将能量直接传递给室外新风，若检测到热排风主管43内存在污染物，则控制器控制第二电动阀门421关闭、第一电动阀门411打开，通过热回收器间接将含污染物的高温(或低温)排风的能量传递给新风机组 进风口处的室外新风。
上述实施方案中，还可以同时在新风机组11进风口处或者新风机组11内设置温度探测器，热回收器51可以调节对工艺排风能量的回收量，当检测到热排风主管内的工艺排风为无污染物的高温(或低温)清洁排风时，可以使得热回收器51不回收工艺排风的能量，控制器根据温度探测器探测到的温度和预设温度分别控制第一电动阀门411和第二电动阀门421的开合程度，调节对工艺排风的能量的回收量，而当检测到热排风主管内的工艺排风为含污染物的工艺排风时，控制器控制第二电动阀门421关闭、第一电动阀门411全开，并使热回收器51对第一排风管道41内工艺排风的能量进行回收。
具体地，上述热回收器可以为转轮式、板式、翅片式、热管式、壳管式以及中间热媒式等多种形式之一或者组合，在这里不做限制。
在另一种方案中，如图9所示，上述节能通风系统包括热回收器52。第二排风管道不直接与新风机组的进风管道相连通，第二排风管道42通过热回收器52与进风管道11配合以将第二排风管道42内高温排风或低温排风的能量间接传递给新风机组1进风口处的室外新风。具体地，第二排风管道42与热回收器52的进风口连通，热回收器52的出风口与生产房间外的大气连通，热回收器52可将第二排风管道42内工艺排风的能量传递给新风机组11进风口处的室外新风。通过热回收器的热交换的作用，使得在新风机组1的进风口处的室外新风温度提高或降低，进而减少新风机组1对室外新风的加热量或者冷却量，达到节约能源的目的。
具体地，上述热回收器52可以为转轮式、板式、翅片式、热管式、壳管式以及中间热媒式等多种形式之一或者组合，根据实际情况选择，在这里不做限制。
具体地，上述热回收器52可以设置于新风机组1内，或者第二排风管道42上，或者排风机内。在这里，热回收器的设置位置只要能够实现热回收器安装与运行功能即可，不做具体限制。
需要说明的是，由于不同的生产房间内需要维持的室内环境参数要求不 同，所以，新风机组内具体包括的处理设备以及处理设备的设计参数，根据实际情况而定，在这里不做限制。
在另一种可能的实施方式中，如图10所示，还可以将上述两种可能的实施方式进行结合，上述排风回用装置中可以同时包括上述工艺排风回用机组21以及上述第一排风机22、第一排风管41和第二排风管42的组合，利用工艺排风回用机组21可以将生产房间内温度适宜的常温排风经过过滤处理后再送入生产房间内，通过第一排风机22、第二排风管42和/或热回收器可以将工艺设备排出的高温排风或者低温排风的能量传递给新风机组进风口处的新风，实现能量的再利用，节省能源。
上述三种可能的实施方式提供的节能通风系统中，进一步地，如图2和图10所示，通风系统中还包括用于将生产房间内不可利用的工艺排风排出的第二排风机23。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请实施例的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (22)

  1. 一种利用工艺排风的节能通风系统，其特征在于，包括：
    新风机组，所述新风机组用于将室外新风处理后送入生产房间；
    排风回用装置，所述排风回用装置用于将生产房间内可利用的工艺排风的本身和/或能量传递回所述生产房间和/或新风机组进风口。
  2. 根据权利要求1所述的节能通风系统，其特征在于，所述排风回用装置包括用于将所述生产房间内可利用的工艺排风回收并输送回所述生产房间的工艺排风回用机组。
  3. 根据权利要求2所述的节能通风系统，其特征在于，所述工艺排风回用机组包括：与所述生产房间用于排出可利用工艺排风的出口连通的进风段、与所述生产房间用于接收可利用工艺排风的入口连通的出风段、以及位于所述进风段与所述出风段之间的风机段。
  4. 根据权利要求3所述的节能通风系统，其特征在于，所述进风段和所述风机段之间设有至少一个过滤段，和/或，所述风机段与所述出风段之间设有至少一个过滤段。
  5. 根据权利要求4所述的节能通风系统，其特征在于，所述进风段和所述风机段之间设有的过滤段包括化学过滤段和/或中效过滤段。
  6. 根据权利要求4所述的节能通风系统，其特征在于，所述风机段与所述出风段之间设有的过滤段包括高效过滤段。
  7. 根据权利要求3所述的节能通风系统，其特征在于，还包括连接风管，所述连接风管的一端与所述出风段连接，另一端与所述生产房间连通。
  8. 根据权利要求7所述的节能通风系统，其特征在于，还包括出风段风管，所述连接风管上设置有第一电动密闭阀，所述出风段风管的一端与位于所述出风段与所述第一电动密闭阀之间的所述连接风管连接，所述出风段风管的另一端与生产房间外的大气连通，所述出风段风管上设置有第二电动密闭阀，所述连接风管位于所述出风段与所述第一电动密闭阀之间的部分内设 置有有害物探头，所述有害物探头与控制器信号连接，所述控制器分别与所述第一电动密闭阀和第二电动密闭阀信号连接以用于分别控制所述第一电动密闭阀和第二电动密闭阀的开启和关闭；
    当所述有害物探头检测到所述连接风管内存在有害物时，所述控制器控制所述第一电动密闭阀关闭且所述第二电动密闭阀开启。
  9. 根据权利要求2所述的节能通风系统，其特征在于，所述工艺排风回用机组安装于通风空调机房内、吊顶内、洁净生产厂房下技术夹层内，或者工艺房间内。
  10. 根据权利要求1-9任一项所述的节能通风系统，其特征在于，所述新风机组的进风口连接有用于引入室外新风的进风管道，所述排风回用装置包括第一排风机以及与所述第一排风机出风口连接的第一排风管和第二排风管，所述第一排风管道与生产房间外的大气连通，所述第一排风管道上设置有用于控制所述第一排风管道风量的第一电动阀门，所述第二排风管道与所述进风管道配合以将可利用的工艺排风的本身和/或能量传递给新风机组进风口处的室外新风，所述第二排风管道上设置有用于控制所述第二排风管道风量的第二电动阀门。
  11. 根据权利要求10所述的节能通风系统，其特征在于，还包括温度探测器，所述温度探测器安装于所述新风机组的进风口处或者新风机组内以用于检测所述新风机组进风口处的新风的温度，所述温度探测器与控制器信号连接，所述控制器分别与所述第一电动阀门和第二电动阀门信号连接，所述控制器用于根据所述温度探测器探测到的温度和预设温度分别控制所述第一电动阀门和第二电动阀门的开合程度。
  12. 根据权利要求10所述的节能通风系统，其特征在于，所述第二排风管道直接与所述进风管道相连通。
  13. 根据权利要求12所述的节能通风系统，其特征在于，所述第一排风机内、所述第二排风管道上或者所述新风机组内设置有过滤段。
  14. 根据权利要求13所述的节能通风系统，其特征在于，所述第一排风 机内、所述第二排风管道上或者所述新风机组内的过滤段上设置有过滤器。
  15. 根据权利要求12所述的节能通风系统，其特征在于，所述第一排风机的进风口通过热排风主管与工艺设备的排风口连通。
  16. 根据权利要求15所述的节能通风系统，其特征在于，所述热排风主管内设置有有害物探头；所述有害物探头与控制器信号连接，所述控制器分别与所述第一电动阀门和第二电动阀门信号连接；
    当所述有害物探头检测到所述热排风主管内存在有害物时，所述第二电动阀门关闭且所述第一电动阀门全开。
  17. 根据权利要求16所述的节能通风系统，其特征在于，还包括热回收器，所述热回收器的进风口与所述第一排风管道连通，所述第一排风管道通过所述热回收器与所述新风机组进风口处配合以将所述第一排风管道内可利用的工艺排风的能量间接传递给新风机组进风口处的室外新风。
  18. 根据权利要求17所述的节能通风系统，其特征在于，所述热回收器包括转轮式、板式、翅片式、热管式、壳管式以及中间热媒式之一或组合。
  19. 根据权利要求10所述的节能通风系统，其特征在于，还包括热回收器，所述第二排风管道通过所述热回收器与所述进风管道配合以将所述第二排风管道内可利用的工艺排风的能量间接传递给新风机组进风口处的室外新风。
  20. 根据权利要求19所述的节能通风系统，其特征在于，所述热回收器包括转轮式、板式、翅片式、热管式、壳管式以及中间热媒式之一或组合。
  21. 根据权利要求19所述的节能通风系统，其特征在于，所述热回收器设置于所述新风机组内，或者设置于所述第二排风管道上，或者设置于所述第一排风机内。
  22. 根据权利要求1所述的节能通风系统，其特征在于，还包括用于将所述生产房间内不可利用的工艺排风排出的第二排风机。
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