CN106123134B - A kind of energy-efficient new blower and its working method for cold district - Google Patents
A kind of energy-efficient new blower and its working method for cold district Download PDFInfo
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- CN106123134B CN106123134B CN201610514930.8A CN201610514930A CN106123134B CN 106123134 B CN106123134 B CN 106123134B CN 201610514930 A CN201610514930 A CN 201610514930A CN 106123134 B CN106123134 B CN 106123134B
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F24F2110/10—Temperature
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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
- F24F2110/20—Humidity
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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
- 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
-
- 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
- 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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- 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
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
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Abstract
The invention discloses a kind of energy-efficient new blowers for cold district, including shell, controller, exhaust valve, heating coil, fresh-air fan, heat exchanger, return air fan, dedusting filter cylinder, air returning valve, first partition, second partition, Temperature Humidity Sensor and gas concentration lwevel sensor；Fresh-air fan is fixedly connected in first partition；Space below first partition is divided into fresh air channel and return air channel by heat exchanger and second partition；The bottom of fresh air channel is fresh air inlet, is connected to the shell external world；Shell is equipped with return air inlet, which is connected to return air channel top, and return air fan is fixedly connected in return air channel, and exhaust valve is fixedly connected in return air channel, and the bottom of return air channel is communicated by air-exhausting duct with the shell external world；Air returning valve is connect with second partition, can be connected to or obstruct return air channel and fresh air channel.The new blower is used for cold district, can reduce energy loss to greatest extent while guaranteeing indoor air quality.
Description
Technical field
The invention belongs to building ventilation and air-conditioning technical fields, it particularly relates to a kind of for the efficient of cold district
Energy-efficient new blower and its working method.
Background technique
In recent years, as industrialization aggravates, vehicle guaranteeding organic quantity increases, the quickening of urban construction paces, and urban air is dirty
Dye problem rapidly becomes the focus of people.According to statistics, the whole nation has 2/3 or more the exceeded number of days of city PM2.5 to account for whole year
3/4.It is influenced in order to avoid being polluted by outdoor environment, the time that people stay indoors is more and more, however indoor air
Situation equally allows of no optimist.
On the one hand, if haze sky door and window, indoor and outdoor air are not isolated, outdoor pollution air, which enters the room, causes room
Interior air quality decline, impacts human health and comfort；On the other hand, modern architecture finishing material is constantly to interior
Chemical pollutant is discharged, in the case where opening air-conditioning, people usually would turn off door and window, and indoor and outdoor air does not circulate, and for a long time
It is in enclosure space, indoor carbon dioxide concentration constantly increases, oxygen content in air decline, so that the air of practical building interior is dirty
Dye phenomenon is increasingly severe, and the illness disease incidence relevant to building such as sick building syndrome (SBS) also rises with it.Utilize phase
To clean outdoor air displacement indoor pollution air, the oxygen supply of indoor occupant can be provided, dilution indoor pollutant, mentioned
High indoor occupant study, working efficiency, the disease incidence for reducing all kinds of building related diseases and the healthiness for ensureing indoor occupant
It is horizontal.Therefore, market can not only remove indoor pollutant and can be to indoor feeding fresh air there is an urgent need to a
Equipment.
Occur a large amount of technologies and product in relation to fresh air system at present, such as the new blower fan system of Panasonic's Total heat exchange, has used
Two-way ventilation is arranged foul indoor air to outdoor while outdoor fresh air is sent into indoor；For another example long-range clean fresh air
Machine is provided with fresh air by-passing valve in cleaning fan, automatically opens in transition season, and fresh air is directly filtered without heat exchanger
Be sent into indoor, long-range all-fresh air principle of advocating: necessary 100% fresh air of fresh air system does not mix return air, prevents although doing so
The cross contamination of building interior, but when indoor/outdoor temperature-difference is very big, the winter such as in the Northeast, China, indoor high temperature air
It is discharged outdoor, outdoor cold fresh air is sent into indoor, the thermic load of increase room conditioning (heating), increase winter heating energy
Consumption.In conclusion only focusing on air quality requirement, horsepower requirements are ignored, there are not energy-efficient defects.Therefore, in extreme cold
Under weather, while how guaranteeing indoor air quality, realize energy consumption it is minimum be those skilled in the art of the present technique's problems faced.
Summary of the invention
Technical problem: the technical problems to be solved by the present invention are: providing a kind of for the energy-efficient of cold district
New blower and its working method can be while guaranteeing indoor air quality when the new blower is used for cold district, maximum limit
Degree reduces energy loss.
Technical solution: in order to solve the above technical problems, the embodiment of the present invention adopts the following technical scheme that:
On the one hand, the present embodiment provides a kind of energy-efficient new blower for cold district, which includes shell
Body, controller, and exhaust valve in shell, heating coil, fresh-air fan, heat exchanger, return air fan, dedusting filter cylinder,
Air returning valve, first partition, second partition, Temperature Humidity Sensor and gas concentration lwevel sensor；The top of shell is equipped with air-supply
Mouthful, heating coil and first partition be respectively fixedly connected on the inner wall of the housing, and heating coil be located at air outlet and first every
Between plate, fresh-air fan is fixedly connected in first partition；Heat exchanger is connected with second partition, and heat exchanger and second partition will
Space below first partition is divided into fresh air channel and return air channel；The top of fresh air channel by fresh-air fan with first every
The connection of plate upper space；The bottom of fresh air channel is fresh air inlet, is connected to the shell external world；Shell is equipped with return air inlet, should
Return air inlet is connected to return air channel top, and return air fan is fixedly connected in return air channel, and exhaust valve is fixedly connected on return air
In channel, the bottom of return air channel is communicated by air-exhausting duct with the shell external world；Dedusting filter cylinder is fixedly connected in the fresh air passage, is returned
Air-valve is connect with second partition, and adjusts the opening and closing of air returning valve, can be connected to or obstruct return air channel and fresh air channel；Temperature and humidity passes
Sensor is fixedly connected on the wall surface of fresh air channel, and gas concentration lwevel sensor is fixedly connected on return air channel wall surface, control
Device processed is fixedly connected on shell；The signal output end of Temperature Humidity Sensor and the signal output end of gas concentration lwevel sensor
Connect respectively with the signal input part of controller, the signal output end of controller respectively with the signal input part of exhaust valve and return air
The signal input part of valve connects.
As preference, fresh air inlet of the Temperature Humidity Sensor close to fresh air channel, gas concentration lwevel sensing
Return air inlet of the device close to return air channel.
As preference, the air returning valve is rectangle, and the length of air returning valve is equal to the length of exhaust valve, the width of air returning valve
Degree is 0.4 ~ 1.2 times of width of exhaust valve.
As preference, the air returning valve bottom surface is located at exhaust valve top face 40mm ~ 90mm.
On the other hand, the present embodiment provides a kind of working method of energy-efficient new blower for cold district,
It is characterized in that, method includes the following steps:
Step 10): detection outdoor fresh air temperature value t；
Step 20: judge whether outdoor fresh air temperature value reaches temperature threshold T: whent≤TWhen, air returning valve is opened, is gone forward side by side
Enter step 30)；Whent>TWhen, then it enters step 40)；
Step 30): detection room air carbon dioxide concentration value, and according to room air carbon dioxide concentration value, regulation
The aperture of exhaust valve makes part room air pass through air returning valve, mixes with fresh air, after filtering and heat exchange, is sent into interior,
Remaining room air is expelled directly out outdoor by exhaust valve；It enters step 50)；
Step 40): return air valve closing state is kept, makes fresh air channel and return air channel independent operating, and adjust air draft
Valve opening is 100%；
Step 50): interval timeTAfterwards, return step 10), until new blower stops working.
As preference, the step 10) is specifically included: being passed using the temperature and humidity being mounted in new blower fresh air channel
Sensor detection enters the fresh air temperature value in fresh air channel, as outdoor fresh air temperature value.
As preference, in the step 10), Temperature Humidity Sensor is mounted at the fresh air inlet of fresh air channel.
As preference, in the step 30), regulate and control the detailed process of the aperture of exhaust valve are as follows: when room air two
When carbonoxide concentration value is greater than 1000ppm, air draft valve openingKIt is 100%；When room air carbon dioxide concentration value be in 700 ~
When 1000ppm, air draft valve openingKIt is 75%；When room air gas concentration lwevel is in 380 ~ 700ppm, air draft valve openingK
It is 50%；When room air gas concentration lwevel is less than 380ppm, air draft valve openingKIt is 25%.
As preference, in the step 30), room air carbon dioxide concentration value is detected, is by being arranged new
Gas concentration lwevel sensor detection indoor return air in blower return air channel at return air inlet obtains.
As preference, in the step 20), temperature threshold T is less than -10 DEG C.
The utility model has the advantages that compared with prior art, the embodiment of the present invention has the advantages that the new blower is used for cold
When regional, energy loss can be reduced to greatest extent while guaranteeing indoor air quality.The present embodiment is warm and humid by being arranged
Sensor is spent, outside air temperature is detected, if outside air temperature is higher than temperature threshold, keeps fresh air channel and return air logical
The autonomous working in road.If outside air temperature is less than or equal to temperature threshold, air returning valve is opened, so that part room air
It is mixed with fresh air, to improve the temperature of fresh air, reduces the energy loss of heating fresh air.Because new air temperature is lower, needed for heating
The energy consumption wanted is bigger.Therefore, it is directly mixed using room air and fresh air, improves the temperature of fresh air.Meanwhile according to room
The gas concentration lwevel of interior air to adjust the aperture of exhaust valve, and then adjusts and enters interior in fresh air channel by air returning valve
Air capacity, so that energy consumption can be reduced to greatest extent while guaranteeing indoor air quality.The present embodiment passes through setting air draft
Valve and air returning valve double valve, and the measured value of Temperature Humidity Sensor and gas concentration lwevel sensor is combined, adjust air returning valve
The aperture of opening and closing and exhaust valve so that the fresh air machine in cold district can reduce energy consumption, and can guarantee indoor air quality.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the new blower of the embodiment of the present invention；
Fig. 2 is the schematic view of the mounting position of air returning valve in the new blower of the embodiment of the present invention；
Fig. 3 is the flow diagram of the new blower working method of the embodiment of the present invention.
Have in figure: shell 1, return air inlet 2, exhaust valve 3, fresh air inlet 4, heating coil 5, fresh-air fan 6, heat exchanger 7,
Return air fan 8, dedusting filter cylinder 9, air returning valve 10, first partition 11, second partition 12, air outlet 13.
Specific embodiment
With reference to the accompanying drawing, the embodiment of the present invention is described in further detail, but not as a limitation of the invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of energy-efficient new blower for cold district, including shell 1,
Controller, and the exhaust valve 3 in shell 1, heating coil 5, fresh-air fan 6, heat exchanger 7, return air fan 8, dedusting filter
Cylinder 9, air returning valve 10, first partition 11, second partition 12, Temperature Humidity Sensor and gas concentration lwevel sensor.The top of shell
End is equipped with air outlet 13, and heating coil 5 and first partition 11 are respectively fixedly connected on the inner wall of the housing, and heating coil 5
Between air outlet 13 and first partition 11.Fresh-air fan 6 is fixedly connected in first partition 11.Heat exchanger 7 and second partition
12 connections, and the space of 11 lower section of first partition is divided into fresh air channel and return air channel by heat exchanger 7 and second partition 12.Newly
The top in wind channel is connected to by fresh-air fan 6 with 11 upper space of first partition.The bottom of fresh air channel is fresh air inlet 4,
It is connected to 1 external world of shell.Shell is equipped with return air inlet 2.The return air inlet 2 is connected to return air channel top.Return air fan 8 is solid
Surely it is connected in return air channel, exhaust valve 3 is fixedly connected in return air channel.The bottom of return air channel passes through air-exhausting duct and shell
The external world communicates.Dedusting filter cylinder 9 is fixedly connected in the fresh air passage, and air returning valve 10 is connect with second partition 12, and adjusts air returning valve
10 opening and closing can be connected to or obstruct return air channel and fresh air channel.Temperature Humidity Sensor is fixedly connected on the wall surface of fresh air channel
On, gas concentration lwevel sensor is fixedly connected on return air channel wall surface, and controller is fixedly connected on shell 1.Temperature and humidity
The signal output end of sensor and the signal output end of gas concentration lwevel sensor connect with the signal input part of controller respectively
It connects, the signal output end of controller is connect with the signal input part of the signal input part of exhaust valve and air returning valve respectively.
Temperature Humidity Sensor detects outside air temperature, and temperature value is transmitted to controller, by controller by temperature value
With temperature thresholdTIt is compared, if temperature value is greater than temperature thresholdT, then controller issues control to air returning valve 10 and exhaust valve 3
Signal processed is kept closed air returning valve 10, and exhaust valve 3 is in 100% aperture state.If temperature value is less than or equal to temperature
Spend threshold valueT, then controller issues control signal to air returning valve 10 and exhaust valve 3, and air returning valve 10 is made to be in 100% aperture state, arranges
Air-valve 3 is in aperture state.At this point, the room air gas concentration lwevel that controller is transmitted according to gas concentration lwevel sensor
Value adjusts the aperture of exhaust valve 3.When room air carbon dioxide concentration value is greater than 1000ppm, air draft valve openingKIt is 100%；
When room air carbon dioxide concentration value is in 700 ~ 1000ppm, air draft valve openingKIt is 75%；When room air carbon dioxide
When concentration is in 380 ~ 700ppm, air draft valve openingKIt is 50%；When room air gas concentration lwevel is less than 380ppm, air draft
Valve openingKIt is 25%.
As the preferred structure of the new blower of above structure, fresh air inlet of the Temperature Humidity Sensor close to fresh air channel
4, return air inlet 2 of the gas concentration lwevel sensor close to return air channel.Outdoor air is entered the room by fresh air channel.It is warm and humid
Degree sensor is for detecting outside air temperature, so Temperature Humidity Sensor is arranged in the entrance of fresh air channel, it can be more
Accurate detection outside air temperature.Room air is discharged from return air channel.Gas concentration lwevel sensor is for detecting interior
Gas concentration lwevel in air, so by the return air inlet 2 of gas concentration lwevel sensor return air channel, it can be compared with subject to
Gas concentration lwevel in true detection room air.
As preference, the air returning valve 10 is rectangle, and the length of air returning valve 10 is equal to the length of exhaust valve 3, return air
The width of valve 10 is 0.4 ~ 1.2 times of width of exhaust valve 3.10 area of air returning valve is 0.4 ~ 1.2 times of 3 area of exhaust valve.When return
10 area of air-valve is 0.4 ~ 1.2 times of 3 area of exhaust valve, and 10 bottom surface of air returning valve is located at 3 top face 40mm ~ 90mm of exhaust valve
When, return air amount is relatively large.Meanwhile the length of air returning valve 10 is equal to the length of exhaust valve 3.Because housing main body thickness determines
Afterwards, 3 length of exhaust valve is settable maximum length, and air returning valve is also the same.Maximum length opposite can highly reduce.
The working method of the new blower of above structure, comprising the following steps:
Step 10): detection outdoor fresh air temperature valuet；
Step 20: judge whether outdoor fresh air temperature value reaches temperature threshold T: whent≤TWhen, air returning valve is opened, is gone forward side by side
Enter step 30)；Whent>TWhen, then it enters step 40)；
Step 30): detection room air carbon dioxide concentration value, and according to room air carbon dioxide concentration value, regulation
The aperture of exhaust valve makes part room air pass through air returning valve, mixes with fresh air, after filtering and heat exchange, is sent into interior,
Remaining room air is expelled directly out outdoor by exhaust valve；It enters step 50)；
Step 40): return air valve closing state is kept, makes fresh air channel and return air channel independent operating, and adjust air draft
Valve opening is 100%；
Step 50): interval timeTAfterwards, return step 10), until new blower stops working.
Above-mentioned steps 10) it specifically includes: entered using the Temperature Humidity Sensor detection being mounted in new blower fresh air channel
Fresh air temperature value in fresh air channel, as outdoor fresh air temperature value.
In order to accurately measure outdoor fresh air temperature value, temperature sensor is mounted on to the inlet of fresh air channel.This be because
Enter in fresh air channel for outdoor fresh air from the inlet of fresh air channel, so temperature sensor is mounted on entering for fresh air channel
It, being capable of accurate side wave outdoor fresh air temperature value at mouthful.
Preferably, above-mentioned steps 30) in, regulate and control the detailed process of the aperture of exhaust valve are as follows: when room air two
When carbonoxide concentration value is greater than 1000ppm, air draft valve openingKIt is 100%；When room air carbon dioxide concentration value be in 700 ~
When 1000ppm, air draft valve openingKIt is 75%；When room air gas concentration lwevel is in 380 ~ 700ppm, air draft valve openingK
It is 50%；When room air gas concentration lwevel is less than 380ppm, air draft valve openingKIt is 25%.In the preference, by air draft
Valve opening is set as four gears, respectively 100%, 75%, 50% and 25%, and the aperture of air returning valve is 100%.When indoor carbon dioxide concentration
When larger, more fresh airs is needed to be discharged into interior, to improve the oxygen content of room air.At this point, the aperture of exhaust valve is also larger,
So that the room air in return air channel passes through exhaust valve as far as possible drains into the external world.It is flowed into fresh air channel by air returning valve in this way
Room air is with regard to less.Equally, when indoor carbon dioxide concentration is smaller, illustrate that room air is more fresh, it can not be used
More is discharged into fresh air.At this point, the aperture of exhaust valve is also smaller, so that the room air in return air channel passes through air returning valve 10 as far as possible
It flows into fresh air channel.Since indoor air temperature is higher, the room air mixed in the fresh air passage with fresh air, by changing
Heat, can be improved the temperature of fresh air, to reduce the energy consumption of heating fresh air.
As preference, in the step 30), room air carbon dioxide concentration value is detected, is by being arranged new
Gas concentration lwevel sensor detection indoor return air in blower return air channel at return air inlet obtains.Room air is logical from return air
Road discharge.Gas concentration lwevel sensor is used to detect the gas concentration lwevel in room air, so by gas concentration lwevel
At the return air inlet 2 of sensor return air channel, the gas concentration lwevel in room air can be accurately detected.
Preferably, in the step 20), temperature thresholdTLess than -10 DEG C.The embodiment of the present invention is mainly used for
Cold district.When outdoor temperature is higher than temperature thresholdTWhen, air returning valve remains off, and fresh air channel and return air channel are respectively
It works independently.Under the action of fresh-air fan 6, fresh air enters in fresh air channel from fresh air inlet 4, by heat exchanger 7 and heating
After coil pipe 5 is exchanged heat and heated, fresh air is discharged into interior from air outlet 13.And room air leads under the action of return air fan 8
It crosses return air inlet 2 to enter in return air channel, in the heat exchanger 7 and after new air heat-exchange, drains into outdoor from exhaust valve 3.
For cold district, when temperature is higher, the heat exchange between fresh air and return air is realized by heat exchanger 7, and utilize
Heating coil 5 heats fresh air.Fresh air channel and return air channel respectively work independently.When the temperature is low, return air is opened
Valve mixes so that the part room air in return air channel enters in fresh air channel with the fresh air in fresh air channel, new to improve
The temperature of wind.When temperature is too low, fully relies on heat exchanger 7 and heating coil 5 and fresh air is heated, consumption energy is larger.This implementation
Example, when temperature is too low, is mixed with fresh air using the room air of high temperature, greatly improves the temperature of fresh air, is reduced and is added
The energy loss of hot fresh air.Meanwhile according to indoor carbon dioxide concentration value, to adjust into the room air in fresh air channel
Amount, it is ensured that room air has certain oxygen content, guarantees air quality.
Energy-efficient new blower provided in an embodiment of the present invention, installs temperature and humidity sensing in the fresh air channel of new blower
Device installs gas concentration lwevel sensor inside return air inlet, exports installation exhaust valve in new blower air exhaust passage, exhaust valve is opened
It spends adjustable.Wall surface between air exhaust passage and fresh air channel installs air returning valve.When outdoor temperature is lower than temperature T, air returning valve
It automatically turns on, and air draft valve opening is adjusted according to indoor carbon dioxide concentration value, room air is made to enter return air by heat exchanger 5
Channel, under the collective effect of return air fan 8 and fresh-air fan 6, part room air passes through air returning valve 10 and mixes with fresh air, passes through
It is sent into interior after filtering, heat exchange, another part room air is expelled directly out outdoor by exhaust valve 3.
In the embodiment of the present invention, installation exhaust valve 3 is exported in new blower air exhaust passage, 3 aperture of exhaust valve is adjustable, in air draft
Wall surface between channel and fresh air channel installs air returning valve 10.When outdoor temperature is lower than temperature threshold T, controller controls return air
Valve 10 automatically turn on, and according to indoor carbon dioxide concentration value adjust 3 aperture of exhaust valve, make room air by heat exchanger 7 into
Enter return air channel, under the collective effect of return air fan 8 and fresh-air fan 6, part room air passes through air returning valve 10 and fresh air
Mixing is sent into interior after being filtered, being exchanged heat, and another part is expelled directly out outdoor by exhaust valve 3.
The embodiment of the present invention controls changing for new blower flow passage structure by setting 10 two valves of exhaust valve 3 and air returning valve
Become, reduces exhaust air rate under cold conditions, reduce fresh air thermic load, efficiently trap fine particle (PM2.5), guarantee room air
Quality, it is energy saving, it is simple and efficient.
The basic principles, main features and advantages of the invention have been shown and described above.Those skilled in the art should
Understand, the present invention do not limited by above-mentioned specific embodiment, the description in above-mentioned specific embodiment and specification be intended merely into
One step illustrates the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
It improves, these changes and improvements all fall within the protetion scope of the claimed invention.The scope of protection of present invention is wanted by right
Ask book and its equivalent thereof.
Claims (9)
1. a kind of energy-efficient new blower for cold district, which is characterized in that the new blower includes shell (1), control
Device, and the exhaust valve (3), the heating coil (5), fresh-air fan (6), heat exchanger (7), return air fan that are located in shell (1)
(8), dedusting filter cylinder (9), air returning valve (10), first partition (11), second partition (12), Temperature Humidity Sensor and carbon dioxide are dense
Spend sensor；
The top of shell is equipped with air outlet (13), and heating coil (5) and first partition (11) are respectively fixedly connected in shell
On wall, and heating coil (5) is located between air outlet (13) and first partition (11), and fresh-air fan (6) is fixedly connected on first
On partition (11)；Heat exchanger (7) and second partition (12) connection, and heat exchanger (7) and second partition (12) are by first partition
(11) space below is divided into fresh air channel and return air channel；The top of fresh air channel by fresh-air fan (6) with first every
The connection of plate (11) upper space；The bottom of fresh air channel is fresh air inlet (4), is connected to shell (1) external world；Shell is equipped with back
Wind entrance (2), the return air inlet (2) are connected to return air channel top, and return air fan (8) is fixedly connected in return air channel, row
Air-valve (3) is fixedly connected in return air channel, and the bottom of return air channel is communicated by air-exhausting duct with the shell external world；Dedusting filter cylinder
(9) it being fixedly connected in the fresh air passage, air returning valve (10) is connect with second partition (12), and adjusts the opening and closing of air returning valve (10),
It can be connected to or obstruct return air channel and fresh air channel；The Temperature Humidity Sensor close to fresh air channel fresh air inlet (4), two
Return air inlet (2) of the carbonoxide concentration sensor close to return air channel；
Temperature Humidity Sensor is fixedly connected on the wall surface of fresh air channel, and it is logical that gas concentration lwevel sensor is fixedly connected on return air
On road wall surface, controller is fixedly connected on shell (1)；The signal output end and gas concentration lwevel of Temperature Humidity Sensor sense
The signal output end of device is connect with the signal input part of controller respectively, the signal output end of controller respectively with the letter of exhaust valve
Number input terminal is connected with the signal input part of air returning valve；
Temperature Humidity Sensor detects outside air temperature, and temperature value is transmitted to controller, by controller by temperature value and temperature
Degree threshold value T is compared, if temperature value is greater than temperature threshold T, controller issues control to air returning valve (10) and exhaust valve (3)
Signal processed is kept closed air returning valve (10), and exhaust valve (3) is in 100% aperture state；If temperature value is less than or waits
In temperature threshold T, then controller issues control signal to air returning valve (10) and exhaust valve (3), and air returning valve (10) is made to be in 100%
Aperture state, exhaust valve (3) are in aperture state；The room air dioxy that controller is transmitted according to gas concentration lwevel sensor
Change concentration of carbon value, adjusts the aperture of exhaust valve (3).
2. the energy-efficient new blower described in accordance with the claim 1 for cold district, which is characterized in that the return air
Valve (10) is rectangle, and the length of air returning valve (10) is equal to the length of exhaust valve (3), and the width of air returning valve (10) is exhaust valve (3)
0.4~1.2 times of width.
3. the energy-efficient new blower according to claim 1 or 2 for cold district, which is characterized in that described
Air returning valve (10) bottom surface is located at exhaust valve (3) top face 40mm~90mm.
4. a kind of working method of the energy-efficient new blower described in claim 1 for cold district, which is characterized in that
Method includes the following steps:
Step 10): detection outdoor fresh air temperature value t；
Step 20): judge whether outdoor fresh air temperature value reaches temperature threshold T: as t≤T, opening air returning valve, and enter step
It is rapid 30)；As t > T, then enter step 40)；
Step 30): detection room air carbon dioxide concentration value, and according to room air carbon dioxide concentration value, regulate and control air draft
The aperture of valve makes part room air pass through air returning valve, mixes with fresh air, after filtering and heat exchange, is sent into indoor, remaining room
Interior air is expelled directly out outdoor by exhaust valve；It enters step 50)；
Step 40): return air valve closing state is kept, makes fresh air channel and return air channel independent operating, and adjust exhaust valve and open
Degree is 100%；
Step 50): after interval time T, return step 10), until new blower stops working.
5. the working method for the energy-efficient new blower of cold district according to claim 4, which is characterized in that
The step 10) specifically includes: logical into fresh air using the Temperature Humidity Sensor detection being mounted in new blower fresh air channel
Fresh air temperature value in road, as outdoor fresh air temperature value.
6. the working method for the energy-efficient new blower of cold district according to claim 5, which is characterized in that
In the step 10), Temperature Humidity Sensor is mounted at the fresh air inlet (4) of fresh air channel.
7. the working method for the energy-efficient new blower of cold district according to claim 4, which is characterized in that
In the step 30), regulate and control the detailed process of the aperture of exhaust valve are as follows:
When room air carbon dioxide concentration value is greater than 1000ppm, air draft valve opening K is 100%；When room air titanium dioxide
When concentration of carbon value is in 700~1000ppm, air draft valve opening K is 75%；When room air gas concentration lwevel be in 380~
When 700ppm, air draft valve opening K is 50%；When room air gas concentration lwevel is less than 380ppm, air draft valve opening K is
25%.
8. according to the work side for the energy-efficient new blower for being used for cold district described in any one of claim 4 to 7
Method, which is characterized in that in the step 30), detect room air carbon dioxide concentration value, be to be returned by setting in new blower
Gas concentration lwevel sensor detection indoor return air in wind channel at return air inlet obtains.
9. the working method for the energy-efficient new blower of cold district according to claim 4, which is characterized in that
In the step 20), temperature threshold T is less than -10 DEG C.
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| CN106482228A (en) * | 2016-12-08 | 2017-03-08 | 益阳市臻盛精密制造有限公司 | A kind of new blower fan of console model pipeline |
| CN107676871A (en) * | 2017-09-30 | 2018-02-09 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
| CN108518789A (en) * | 2018-03-23 | 2018-09-11 | 上海交通大学 | Heat-exchange device with purification and anti-dewing function |
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| CN110925953B (en) * | 2019-12-11 | 2021-02-19 | 南京晶华智能科技有限公司 | Exhaust heat recovery anti-freezing control method, device and system |
| CN114484836B (en) * | 2022-03-02 | 2024-03-22 | 青岛海信日立空调系统有限公司 | Total heat exchanger |
| CN115854465B (en) * | 2022-12-19 | 2023-07-04 | 西麦柯(广东)制冷科技股份有限公司 | Evaporative cooling dehumidifying air conditioning unit adjusting system |
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