CN108679774A - A kind of progress control method of fresh air system and fresh air system - Google Patents
A kind of progress control method of fresh air system and fresh air system Download PDFInfo
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- CN108679774A CN108679774A CN201810541499.5A CN201810541499A CN108679774A CN 108679774 A CN108679774 A CN 108679774A CN 201810541499 A CN201810541499 A CN 201810541499A CN 108679774 A CN108679774 A CN 108679774A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- 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
-
- 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
-
- 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
- F24F2110/20—Humidity
-
- 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
- F24F2110/22—Humidity of the outside air
-
- 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)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses the progress control methods of a kind of fresh air system and fresh air system.Fresh air system includes：Temperature detecting module, for detecting outdoor fresh air temperature and indoor return air temperature；Humidity detecting module, for detecting outdoor fresh air humidity and indoor return air humidity；Controller, respectively with temperature detecting module, humidity detecting module, the new air-valve of fresh air system is connected with air returning valve, the aperture of the new air-valve and air returning valve of fresh air system can be adjusted according to the comparing result of the enthalpy difference of outdoor fresh air and indoor return air and default enthalpy difference, to which the ratio in indoor mixed wind shared by fresh air and return air is sent into adjustment in real time, so that the fresh air volume being sent into indoor mixed wind can meet the maximum fresh air demand of current indoor, energy consumption will not be caused to waste, compared with prior art, the program can improve the ventilation effect of fresh air system, to improve indoor comfort, the energy consumption of fresh air system is reduced simultaneously.
Description
Technical field
The present invention relates to fresh air system technical field, the operation more particularly to a kind of fresh air system and fresh air system controls
Method.
Background technology
With the continuous improvement of economic level, requirement of the people to quality of life also changes correspondingly, and either stays at home, does
Public place either business place, people have higher requirement to the air quality of its local environment, thus fresh air system is made
For these places air exchange device and extensive use.Fresh air system is usually to mix indoor return air with outdoor fresh air
It is then fed into interior, while outdoor is discharged in indoor carbon dioxide or the higher air of other gaseous pollutant contents, to reach
To the purpose for replacing room air.
Inventor has found that the ventilation effect of fresh air system is influenced by fresh air volume and indoor and outdoor air situation both sides, existing
There is technology to have a drawback in that, sets when at present can only be according to manufacture between the indoor return air and outdoor fresh air of fresh air system
Ratio value is mixed, and when indoor and outdoor surroundings situation changes, is remained not if being sent into fresh air volume in indoor mixed wind
Become, the ventilation effect of fresh air system will be influenced, while being also unfavorable for system and saving energy consumption.
Invention content
The purpose of the embodiment of the present invention is to provide the progress control method of a kind of fresh air system and fresh air system, to improve fresh air
The ventilation effect of system, while reducing the energy consumption of fresh air system.
An embodiment of the present invention provides a kind of fresh air system, including：
Fresh air system main body, the fresh air system main body include wind mixed chamber, new air-valve, air returning valve and with the wind mixed chamber
The air exhaust passage of setting is isolated, the wind mixed chamber has fresh air inlet, return air inlet and the outlet of mixed wind, the new air-valve setting
At the fresh air inlet, the air returning valve is arranged at the return air inlet；
Temperature detecting module, for detecting outdoor fresh air temperature and indoor return air temperature；
Humidity detecting module, for detecting outdoor fresh air humidity and indoor return air humidity；
Controller is connect with the temperature detecting module, the humidity detecting module, new air-valve and air returning valve respectively, is used
In：Obtain the outdoor fresh air temperature, indoor return air temperature, outdoor fresh air humidity and indoor return air humidity；According to the room
Outer new air temperature and the outdoor fresh air humidity determine fresh air enthalpy, and are returned according to the indoor return air temperature and the interior
Wind moisture determines return air enthalpy；Current enthalpy difference is determined according to the fresh air enthalpy and the return air enthalpy；By the current enthalpy difference
It is compared to obtain comparison result with default enthalpy difference, and the new air-valve and the air returning valve is adjusted according to the comparison result
Aperture；After the step of executing the aperture for adjusting the new air-valve and the air returning valve according to the comparison result, return
Continue to execute the step of taking the outdoor fresh air temperature, indoor return air temperature, outdoor fresh air humidity and indoor return air humidity.
In technical solution of the embodiment of the present invention, according to the outdoor fresh air humiture and indoor return air humiture detected in real time
Fresh air enthalpy and return air enthalpy are determined respectively, when by the current enthalpy difference of fresh air enthalpy and return air enthalpy with fresh air system design selection
Identified default enthalpy difference is compared, and adjusts new air-valve and the aperture of air returning valve respectively according to comparison result, in real time
The ratio shared by fresh air and return air in indoor mixed wind is sent into adjustment, also, in order to determine be sent into indoor return air amount with it is indoor
Fresh air demand whether match, after the aperture for adjusting new air-valve and air returning valve, need to return and repeat the above steps, i.e., it is heavy
The humiture information of the new humiture information and indoor return air for obtaining outdoor fresh air, and current enthalpy difference is determined again, according to again
The comparison result of determining current enthalpy difference and default enthalpy difference redefines new air-valve and the aperture of air returning valve, so moves in circles,
Until new air-valve standard-sized sheet, air returning valve are fully closed, it thus may make the fresh air volume being sent into indoor mixed wind can meet to work as
Preceding indoor maximum fresh air demand, will not cause energy consumption to waste, therefore, compared with prior art, the program can improve newly
The ventilation effect of wind system to improve indoor comfort, while reducing the energy consumption of fresh air system.
In a specific embodiment, the controller is specifically used for：
When the current enthalpy difference is greater than or equal to the default enthalpy difference, the aperture of the new air-valve is adjusted to first default
Aperture, and the aperture of the air returning valve is adjusted to the second default aperture；
When the current enthalpy difference is less than the default enthalpy difference, the aperture for controlling the new air-valve increases, and described in control
The aperture of air returning valve reduces.
In the example scheme, when current enthalpy difference is not less than default enthalpy difference, new air-valve and air returning valve are respectively with design
Identified aperture work can meet indoor maximum fresh air demand when type selecting；When current enthalpy difference is less than default enthalpy difference,
Illustrate that the fresh air volume being sent into indoor mixed wind wouldn't can meet the maximum fresh air demand of current indoor, it is mixed in order to improve at this time
Fresh air proportion in wind, the aperture that need to control new air-valve increase, and the aperture for correspondingly controlling air returning valve reduces.
In a specific embodiment, the controller is specifically used for：
When the current enthalpy difference is less than the default enthalpy difference, the aperture of the new air-valve is controlled with its opposite maximum opening
Setting amplitude increase, and the aperture of the control air returning valve is reduced with the setting amplitude of its opposite maximum opening.
The example scheme is by increasing the aperture of new air-valve with the setting amplitude of its opposite maximum opening and by return air
The aperture of valve is reduced with the setting amplitude of its opposite maximum opening, can gradually be adjusted and is sent into fresh air and return air in indoor mixed wind
Shared ratio is kept away so that the fresh air volume being sent into indoor mixed wind can move closer to indoor maximum fresh air demand
Exempt from the fresh air volume being sent into indoor mixed wind disposably to increase excessive and energy consumption is caused to waste.
In a specific embodiment, the amplitude that sets is 5% ± 0.5%.
In a specific embodiment, the fresh air system main body further includes the row being set in the air exhaust passage
Wind turbine, the controller also connect with the exhaust blower, are used for：It is determined in the unit interval according to the aperture of the new air-valve after adjusting
It is sent into indoor fresh air volume；Need discharge outdoor in the unit interval according to being sent into indoor fresh air volume in the unit interval and determining
Exhaust air rate, and adjust according to the exhaust air rate for needing discharge outdoor in the unit interval rotating speed of the exhaust blower.The implementation
Example scheme adjusts exhaust air rate by adjusting the rotating speed of exhaust blower so that interior can remain the state of micro-positive pressure, improve
The clean-up effect of room air.
In a specific embodiment, the fresh air system main body further includes being set at the fresh air inlet extremely
A few fresh air filter screen, and it is set at least one return air filter screen at the return air inlet.By the way that fresh air is arranged or returns
Wind filter screen can enter to avoid the impurity in fresh air or return air in wind mixed chamber, to improve the clean-up effect of room air.
In a specific embodiment, the mixed wind outlet has at least two, and at least two mixed wind goes out
Mouth is located at the adjacent side wall of the wind mixed chamber.At least two mixed wind outlet can meet fresh air system and pacify in furred ceiling respectively
Outlet air locational requirement when dress or wall built-up are installed.
Based on identical inventive concept, the embodiment of the present invention additionally provides a kind of progress control method of fresh air system, packet
It includes：
Step 1：Obtain outdoor fresh air temperature, indoor return air temperature, outdoor fresh air humidity and indoor return air humidity；
Step 2：Fresh air enthalpy is determined according to the outdoor fresh air temperature and the outdoor fresh air humidity, and according to described
Indoor return air temperature and the indoor return air humidity determine return air enthalpy；
Step 3：Current enthalpy difference is determined according to the fresh air enthalpy and the return air enthalpy；
Step 4：The current enthalpy difference is compared with default enthalpy difference to obtain comparison result, and according to the comparison result
Adjust the aperture of the new air-valve and air returning valve of fresh air system；
Step 5：After executing the step 4, returns and execute the step 1.
Similarly, it can adjust and be sent into indoor mixed wind shared by fresh air and return air in real time in technical solution of the embodiment of the present invention
Ratio so that the fresh air volume being sent into indoor mixed wind can meet the maximum fresh air demand of current indoor, will not cause
Energy consumption wastes, and therefore, compared with prior art, the program can improve the ventilation effect of fresh air system, to improve indoor comfortable
Property, while reducing the energy consumption of fresh air system.
In a specific embodiment, the step 4 specifically includes：
When the current enthalpy difference is greater than or equal to the default enthalpy difference, the aperture of the new air-valve is adjusted to first default
Aperture, and the aperture of the air returning valve is adjusted to the second default aperture；
When the current enthalpy difference is less than the default enthalpy difference, the aperture for controlling the new air-valve increases, and described in control
The aperture of air returning valve reduces.
In a specific embodiment, when the current enthalpy difference is less than the default enthalpy difference, the fresh air is controlled
The aperture of valve is increased with the setting amplitude of its opposite maximum opening, and the aperture of the control air returning valve is with its opposite maximum opening
Setting amplitude reduce.
In a specific embodiment, when fresh air system main body further includes the air draft being set in the air exhaust passage
When machine, the progress control method further includes：
It is determined according to the aperture of the new air-valve after adjusting and is sent into indoor fresh air volume in the unit interval；When according to the unit
The interior indoor fresh air volume of feeding determines the exhaust air rate for needing discharge outdoor in the unit interval, and according to the unit interval domestic demand
The rotating speed that outdoor exhaust air rate adjusts the exhaust blower is discharged.
Description of the drawings
Fig. 1 is the structural schematic diagram of fresh air dehumidifier of the embodiment of the present invention；
Fig. 2 is fresh air system main body furred ceiling scheme of installation of the embodiment of the present invention；
Fig. 3 is fresh air system main body wall built-up scheme of installation of the embodiment of the present invention；
Fig. 4 is the flow diagram of the progress control method of fresh air system of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of dehumidification system of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of drip tray of the embodiment of the present invention；
Fig. 7 is the partial structural diagram one of cabinet of the embodiment of the present invention；
Fig. 8 is the partial structural diagram two of cabinet of the embodiment of the present invention；
Fig. 9 is the partial structural diagram three of cabinet of the embodiment of the present invention.
Reference numeral：
10- fresh air system main bodys；11- wind mixed chamber；12- air exhaust passages；13- fresh air inlets；
14- return air inlets；15- mixes wind outlet；131- new air-valves；141- air returning valves；
16- fresh air filter screens；17- return air filter screens；20- dehumidification systems；21- air inlets；
22- air outlets；23- cabinets；24- surface coolers；25- compressors；26- Intermediate Heat Exchangers；
27- evaporators；28- reheaters；29- drip trays；30- water cooling heat sources；261- evaporation sides；
262- condensation sides；291- osculums；231- bottom plates；232- side plates；The first flangings of 233-；
The first walls of 234-；235- cross walls；The second walls of 236-；The second flangings of 237-；
238- locating notches；40- universal wheels；50- air levels.
Specific implementation mode
In order to improve indoor comfort, while the energy consumption of fresh air system is reduced, an embodiment of the present invention provides a kind of fresh airs
The progress control method of system and fresh air system.To make the object, technical solutions and advantages of the present invention clearer, it lifts below real
Applying example, invention is further described in detail.
Fresh air system is a kind of air exchange device being widely used in family, office space or business place,
Main operational principle be indoor return air is mixed to be then fed into interior with outdoor fresh air, while by indoor gaseous state pollutant load compared with
High air discharge is outdoor, to achieve the purpose that replace room air.In the implementation of the present invention, inventor has found new
The ventilation effect of wind system is not only related with indoor fresh air volume is sent into, while also being influenced by indoor and outdoor air situation, example
The humiture of such as outdoor fresh air, the humiture air regime parameter of indoor return air.In the prior art, the interior of fresh air system is returned
The ratio value set when can only be according to manufacture between wind and outdoor fresh air is mixed, when indoor and outdoor surroundings situation changes
When, if being sent into fresh air volume in indoor mixed wind remains constant, the ventilation effect of fresh air system will be influenced, while also unfavorable
Energy consumption is saved in system.
Based on this, the present invention provides a kind of fresh air system, which includes fresh air system main body.Fresh air system master
Body is the basic hardware facility for indoor and outdoor to be connected to, in embodiments of the present invention, fresh air system main body 10 may be used as
Structure shown in FIG. 1, including wind mixed chamber 11 and the air exhaust passage 12 that setting is isolated with wind mixed chamber 11, wind mixed chamber 11 have fresh air
Entrance 13, return air inlet 14 and mixed wind outlet 15, wherein fresh air inlet 13 is used to wind mixed chamber 11 being connected to outdoor, return air
Entrance 14 is used to wind mixed chamber 11 being connected to interior, and air exhaust passage 12 is used to drain into indoor foul atmosphere in outdoor environment,
And it is provided with the new air-valve 131 for controlling fresh air volume at fresh air inlet 13, is provided at return air inlet 14 for controlling back
The air returning valve 141 of air quantity.It should be understood that the structure of fresh air system main body 10 is not limited to structure type shown in Fig. 2,
Other structures may be used, as long as the purpose for replacing room air can be realized.
In addition, in embodiments of the present invention, in order to allow outdoor fresh air and indoor return air quickly to be mixed in wind mixed chamber 11
It closes, fresh air inlet 13 and return air inlet 14 can be respectively arranged on the opposite side wall of wind mixed chamber 11, as shown in Figure 2.Fresh air
The specific mounting means of system body 10 indoors is unlimited, such as can be installed by furred ceiling mode, can also be by wall built-up side
Formula is installed, shown referring to figs. 2 and 3, and Fig. 2 is the schematic diagram of fresh air system main body installation of ceiling, and Fig. 3 is that fresh air system main body is hung
The schematic diagram of wall installation, in order to meet outlet air locational requirement of the fresh air system main body using different installation when, in the present invention
In embodiment, wind mixed chamber 11 has at least two mixed wind outlets 15, and at least two mixed wind outlet 15 is located at wind mixed chamber
On 11 adjacent side wall.
Shown in Fig. 2, fresh air system main body 10 further include be set to it is at least one new at fresh air inlet 13
Wind filter screen 16, and it is set at least one return air filter screen 17 at return air inlet 14.By be arranged fresh air filter screen 16 or
Return air filter screen 17 can enter to avoid the impurity in fresh air or return air in wind mixed chamber 11, improve the cleanliness factor of mixed wind, to
Improve the clean-up effect of room air.Wherein, the specific number of fresh air filter screen 16 and return air filter screen 17 is unlimited, such as can
It is stacked four layers of fresh air filter screen 16 at fresh air inlet 13, two layers of return air filter screen 17 is stacked at return air inlet 14.
The fresh air system further includes for detecting the temperature detecting module of outdoor fresh air temperature and indoor return air temperature, being used for
Detect outdoor fresh air humidity and indoor return air humidity humidity detecting module, and respectively with temperature detecting module, Humidity Detection
The controller that module, new air-valve and air returning valve connect, the controller are specifically used for：It is wet according to outdoor fresh air temperature and outdoor fresh air
Degree determines fresh air enthalpy, and determines return air enthalpy according to indoor return air temperature and indoor return air humidity；According to fresh air enthalpy and
Return air enthalpy determines current enthalpy difference；Current enthalpy difference is compared with default enthalpy difference to obtain comparison result, and according to comparison result
Adjust the aperture of new air-valve and air returning valve.
In technical solution of the embodiment of the present invention, according to the outdoor fresh air humiture and indoor return air humiture detected in real time
Fresh air enthalpy and return air enthalpy are determined respectively, when by the current enthalpy difference of fresh air enthalpy and return air enthalpy with fresh air system design selection
Identified default enthalpy difference is compared, and adjusts new air-valve and the aperture of air returning valve respectively according to comparison result, in real time
The ratio in indoor mixed wind shared by fresh air and return air is sent into adjustment by wind mixed chamber, also, is sent into indoor return air to determine
Whether amount matches with indoor fresh air demand, after adjusting the aperture of new air-valve and air returning valve, needs return to repeat above-mentioned
Step reacquires the humiture information of the humiture information and indoor return air of outdoor fresh air, and determines current enthalpy difference again,
New air-valve and the aperture of air returning valve are redefined according to the comparison result of the current enthalpy difference determined again and default enthalpy difference, is so followed
Ring is reciprocal, until new air-valve standard-sized sheet, air returning valve are fully closed, thus may make that the fresh air volume being sent into indoor mixed wind can
The maximum fresh air demand for meeting current indoor, will not cause energy consumption to waste, and therefore, compared with prior art, the program can be with
The ventilation effect for improving fresh air system, to improve indoor comfort, while reducing the energy consumption of fresh air system.
The embodiment of the present invention is to characterize outdoor fresh air situation and indoor return air situation using enthalpy, wherein for having
For the air of certain humidity, enthalpy be equivalent to unit mass dry air enthalpy and in unit mass air containing wet
Measure the sum of the enthalpy of the comparable vapor of quality.Enthalpy of humid air value i can be calculated according to following formula：
I=1.01t+ (2500+1.84t) d
Wherein, t is air themperature, and d is the water capacity in unit quality air.
According to above-mentioned formula, and the outdoor fresh air humiture and indoor return air humiture that measure, so that it may obtain fresh air enthalpy
Value and return air enthalpy.
It should be noted that default enthalpy difference is default difference between fresh air enthalpy and default return air enthalpy, fresh air is preset
Enthalpy and default return air enthalpy when fresh air system design selection by determining, therefore not to repeat here.
In the present invention applies example, controller is particularly used in：When current enthalpy difference is not less than default enthalpy difference, new air-valve is adjusted
Aperture to the first default aperture, and adjust the aperture of air returning valve to the second default aperture；When current enthalpy difference is less than default enthalpy difference
When, the aperture for controlling new air-valve increases, and the aperture of control air returning valve reduces.
In the example scheme, when current enthalpy difference is not less than default enthalpy difference, new air-valve and air returning valve are respectively with design
Identified aperture work can meet indoor maximum fresh air demand when type selecting；When current enthalpy difference is less than default enthalpy difference,
Illustrate that the fresh air volume being sent into indoor mixed wind wouldn't can meet the maximum fresh air demand of current indoor, it is mixed in order to improve at this time
Fresh air proportion in wind, the aperture that need to control new air-valve increase, and the aperture for correspondingly controlling air returning valve reduces.
In order to avoid the fresh air volume being sent into indoor mixed wind disposably increases excessive and energy consumption is caused to waste, in the present invention
In embodiment, controller is specifically used for：When current enthalpy difference is less than default enthalpy difference, the aperture of new air-valve is controlled with its opposite maximum
The setting amplitude of aperture increases, and the aperture of control air returning valve is reduced with the setting amplitude of its opposite maximum opening.In this way, passing through
The aperture of new air-valve is increased with the setting amplitude of its opposite maximum opening and by the aperture of air returning valve with its opposite maximum opening
Setting amplitude reduce, can gradually adjust and ratio in indoor mixed wind shared by fresh air and return air is sent by wind mixed chamber so that
The fresh air volume that must be sent into indoor mixed wind can move closer to indoor maximum fresh air demand.Wherein, above-mentioned setting amplitude
Concrete numerical value it is unlimited, such as 5% ± 0.5% can be set in embodiments of the present invention.
In a specific embodiment of the present invention, fresh air system main body further includes the exhaust blower being set in air exhaust passage, control
Device processed is connect with exhaust blower, is used for：It is determined according to the aperture of the new air-valve after adjusting and is sent into indoor fresh air volume in the unit interval；
The exhaust air rate for needing discharge outdoor in the unit interval is determined according to indoor fresh air volume is sent into the unit interval, and when according to unit
The interior exhaust air rate for needing discharge outdoor adjusts the rotating speed of exhaust blower.The example scheme is adjusted by adjusting the rotating speed of exhaust blower
Save exhaust air rate so that interior can remain the state of micro-positive pressure, on the one hand can improve indoor comfort；Another party
Face is also prevented from outdoor filtered foul atmosphere and passes through door and window or pipeline gap when interior is in slight positive pressure state
It gets in, influences indoor clean-up effect.
As shown in figure 4, being based on identical inventive concept, the embodiment of the present invention additionally provides a kind of operation control of fresh air system
Method processed, specifically includes：
Step 1：Obtain outdoor fresh air temperature, indoor return air temperature, outdoor fresh air humidity and indoor return air humidity；
Step 2：Fresh air enthalpy is determined according to outdoor fresh air temperature and outdoor fresh air humidity, and according to indoor return air temperature
Return air enthalpy is determined with indoor return air humidity；
Step 3：Current enthalpy difference is determined according to fresh air enthalpy and return air enthalpy；
Step 4：The current enthalpy difference is compared with default enthalpy difference to obtain comparison result, and according to the comparison result
Adjust the aperture of the new air-valve and air returning valve of fresh air system；
Step 5：After executing the step 4, returns and execute the step 1；
Similarly, it can be adjusted in real time in technical solution of the embodiment of the present invention and be sent into indoor mixed wind fresh air by wind mixed chamber and return
Ratio shared by wind so that the fresh air volume being sent into indoor mixed wind can meet the maximum fresh air demand of current indoor,
Energy consumption will not be caused to waste, therefore, compared with prior art, the program can improve indoor comfort, while reduce fresh air system
Energy consumption.
In a specific embodiment, step 4 specifically includes：When the current enthalpy difference is greater than or equal to described preset
When enthalpy difference, the aperture of the new air-valve is adjusted to the first default aperture, and is adjusted the aperture of the air returning valve and default opened to second
Degree；
When the current enthalpy difference is less than the default enthalpy difference, the aperture for controlling the new air-valve increases, and described in control
The aperture of air returning valve reduces.
In the above-described embodiments, when the current enthalpy difference is less than the default enthalpy difference, the aperture of the new air-valve is controlled
Increased with the setting amplitude of its opposite maximum opening, and the aperture of the control air returning valve is with the setting width of its opposite maximum opening
Degree reduces.
In a specific embodiment, fresh air system main body further includes the exhaust blower being set in air exhaust passage, fortune
Row control method further includes：
It is determined according to the aperture of the new air-valve after adjusting and is sent into indoor fresh air volume in the unit interval；According in the unit interval
It is sent into indoor fresh air volume and determines the exhaust air rate for needing discharge outdoor in the unit interval, and according to needing that room is discharged in the unit interval
Outer exhaust air rate adjusts the rotating speed of exhaust blower.
As shown in Figure 1, the embodiment of the present invention is additionally provided with a kind of fresh air dehumidifier, including dehumidification system 20 and aforementioned
The fresh air system of technical solution, dehumidification system 20 have air inlet 21 and air outlet 22, the mixed wind of air inlet 21 and fresh air system
Outlet, air outlet 22 are connected to interior.
Using the fresh air dehumidifier, outdoor fresh air and indoor return air are sent into dehumidifying system with the mixed mixed wind of certain proportion
It dehumidifies in system, is then sent into the mixed wind after dehumidifying indoor, can not only achieve the purpose that purify the air of a room, it can be with
Improve indoor comfort level.
As shown in Figure 1 and Figure 5, dehumidification system 20 includes cabinet 23 and surface cooler 24, compressor in cabinet 23
25, Intermediate Heat Exchanger 26, evaporator 27, reheater 28 and water cooling heat source 30, wherein：Surface cooler 24 and water cooling heat source 30 connect shape
At the first closed loop configuration；Intermediate Heat Exchanger 26 have evaporation side 261 and condensation side 262, compressor 25, Intermediate Heat Exchanger 26 it is cold
Solidifying side 262 and evaporator 27 are linked in sequence to form the second closed loop configuration；Reheater 28, water cooling heat source 30 and Intermediate Heat Exchanger 26
Evaporation side 261 is linked in sequence to form third closed loop configuration；The inlet side of surface cooler 24 is connected to air inlet 21, and surface cooler 24 goes out
Wind side is connected to the inlet side of evaporator 27, and the air side of evaporator 27 is connected to the inlet side of reheater 28, reheater 28
Air side is connected to air outlet 22.
In the first closed loop configuration, water at low temperature exchanges heat in surface cooler 24 with the mixed wind for flowing through 24 surface of surface cooler, takes away
Partial heat in mixed wind comes back to surface cooler 24 after then cooling down in water cooling heat source 30 and is recycled next time, in this way
Water vapor portion condensation in mixed wind, realizes the pre-dehumidified to mixing wind；In the second closed loop configuration, refrigerant is in evaporator 27
It is mixed so then in 262 condensing heat-exchange of condensation side of Intermediate Heat Exchanger 26 with the mixed wind evaporation and heat-exchange for flowing through 27 surface of evaporator
Vapor in wind further condenses, and realizes and dehumidifies to the depth for mixing wind；In third closed loop configuration, high-temperature water is in reheater 28
The interior mixed wind with after the dehumidifying for flowing through 28 surface of reheater exchanges heat, and is changed into centre after then heating up for the first time in water cooling heat source 30
In hot device 26, Intermediate Heat Exchanger 26 evaporation side 261 continue evaporation and heat-exchange, come back to after further heating up reheater 28 into
Row recycles next time, thus realizes the heating to the mixed wind after dehumidifying so that being sent into the humiture of indoor mixed wind can reach
To the desired value of user, make user that there is preferable comfortable sexual experience.
Wherein, the concrete type of Intermediate Heat Exchanger is unlimited, can be the types such as plate heat exchanger, shell and tube exchanger.It removes
Outside above-mentioned critical component, dehumidification system can further include the restricting element of the entrance positioned at evaporator and be set to
Water pump etc. in first circulation circuit and third circulation loop.
Above-mentioned fresh air dehumidifier can to send by pre-dehumidified, depth dehumidifying and temperature control action to mixing wind
Enter indoor mixed air temperature and humidity in the desired target range of user, to ensure indoor comfort level.It needs to illustrate
, fresh air dehumidifier provided in an embodiment of the present invention can be independently operated, more preferably, can also be applied to air-conditioning system
In, it is used cooperatively with the radiation cool/heat end system of air-conditioning system, to further increase indoor comfort level quality.
As shown in fig. 6, dehumidification system includes the drip tray 29 positioned at bottom of cabinet bulk, the bottom surface of drip tray 29 is slope surface, and
The bottom surface of drip tray 29 is provided with osculum 291 close to the side of bottom of slope.In this manner it is ensured that the condensed water in drip tray 29 is logical
Osculum 291 is crossed quickly to be discharged.
As shown in fig. 7, cabinet includes the bottom plate 231 being detachably connected and side plate 232, bottom plate 231 has the first flanging
233, the first flanging 233 includes the first wall 234, the cross wall 235 being connect with the first wall 234 and is connect with cross wall 235
There is the second flanging 237, the second flanging 237 position of bottom plate 231 to be provided with locating notch for second wall 236, side plate 232
238, when cross wall 235 is inserted in locating notch 238, the first wall 234 is located at the outside of the second flanging 237, the second wall
236 are located at the inside of the second flanging 237 and are riveted with the second flanging 237.Using the technical solution, the dismounting of cabinet can be simplified
Difficulty.Wherein, the outside of the second flanging 237 refers to its side away from the inside of cabinet, correspondingly, the inside of the second flanging 237
Then refer to it towards the side inside cabinet.
In addition, as shown in figure 8, the bottom of the cabinet 23 of the dehumidification system is also provided with dismountable universal wheel 40, from
And reduce the difficulty that complete machine transfer is carried.Also, for the ease of carrying out horizontal adjustment to complete machine, as shown in figure 9, can be in cabinet
Air level 50 is respectively set in other both directions in 23 with vertical direction three-dimensional system of coordinate change in coordinate axis direction each other, to evade
Due to install it is lack of standardization and caused by damage to complete machine.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (11)
1. a kind of fresh air system, which is characterized in that including：
Fresh air system main body, the fresh air system main body include wind mixed chamber, new air-valve, air returning valve and are isolated with the wind mixed chamber
There is fresh air inlet, return air inlet and the outlet of mixed wind, the new air-valve to be arranged in institute for the air exhaust passage of setting, the wind mixed chamber
It states at fresh air inlet, the air returning valve is arranged at the return air inlet；
Temperature detecting module, for detecting outdoor fresh air temperature and indoor return air temperature；
Humidity detecting module, for detecting outdoor fresh air humidity and indoor return air humidity；
Controller connect with the temperature detecting module, the humidity detecting module, new air-valve and air returning valve, is used for respectively：It obtains
Take the outdoor fresh air temperature, indoor return air temperature, outdoor fresh air humidity and indoor return air humidity；According to the outdoor fresh air
Temperature and the outdoor fresh air humidity determine fresh air enthalpy, and according to the indoor return air temperature and the indoor return air humidity
Determine return air enthalpy；Current enthalpy difference is determined according to the fresh air enthalpy and the return air enthalpy；By the current enthalpy difference and preset
Enthalpy difference is compared to obtain comparison result, and the aperture of the new air-valve and the air returning valve is adjusted according to the comparison result；
After the step of executing the aperture for adjusting the new air-valve and the air returning valve according to the comparison result, return continues to hold
The step of row takes the outdoor fresh air temperature, indoor return air temperature, outdoor fresh air humidity and indoor return air humidity.
2. fresh air system as described in claim 1, which is characterized in that the controller is specifically used for：
When the current enthalpy difference is greater than or equal to the default enthalpy difference, adjusts the aperture of the new air-valve and default open to first
Degree, and the aperture of the air returning valve is adjusted to the second default aperture；
When the current enthalpy difference is less than the default enthalpy difference, the aperture for controlling the new air-valve increases, and the control return air
The aperture of valve reduces.
3. fresh air system as claimed in claim 2, which is characterized in that the controller is specifically used for：
When the current enthalpy difference is less than the default enthalpy difference, the aperture of the new air-valve setting with its opposite maximum opening is controlled
Tentering degree increases, and the aperture of the control air returning valve is reduced with the setting amplitude of its opposite maximum opening.
4. fresh air system as claimed in claim 3, which is characterized in that the amplitude that sets is 5% ± 0.5%.
5. fresh air system as described in claim 1, which is characterized in that the fresh air system main body further includes being set to the row
Exhaust blower in wind channel, the controller also connect with the exhaust blower, are used for：Aperture according to the new air-valve after adjusting is true
Determine to be sent into indoor fresh air volume in the unit interval；It is determined in the unit interval according to indoor fresh air volume is sent into the unit interval
The exhaust air rate for needing discharge outdoor, and the exhaust blower is adjusted according to the exhaust air rate for needing discharge outdoor in the unit interval
Rotating speed.
6. fresh air system as described in claim 1, which is characterized in that the fresh air system main body further include be set to it is described new
At least one fresh air filter screen of wind inlet, and it is set at least one return air filter screen at the return air inlet.
7. such as claim 1~6 any one of them fresh air system, which is characterized in that the mixed wind outlet has at least two,
And at least two mixed wind outlet is located at the adjacent side wall of the wind mixed chamber.
8. a kind of progress control method applied to fresh air system described in claim 1, which is characterized in that including：
Step 1：Obtain outdoor fresh air temperature, indoor return air temperature, outdoor fresh air humidity and indoor return air humidity；
Step 2：Fresh air enthalpy is determined according to the outdoor fresh air temperature and the outdoor fresh air humidity, and according to the interior
Return air temperature and the indoor return air humidity determine return air enthalpy；
Step 3：Current enthalpy difference is determined according to the fresh air enthalpy and the return air enthalpy；
Step 4：The current enthalpy difference is compared with default enthalpy difference to obtain comparison result, and is adjusted according to the comparison result
The new air-valve of fresh air system and the aperture of air returning valve；
Step 5：After executing the step 4, returns and execute the step 1.
9. the progress control method of fresh air system as claimed in claim 8, which is characterized in that the step 4 specifically includes：
When the current enthalpy difference is greater than or equal to the default enthalpy difference, adjusts the aperture of the new air-valve and default open to first
Degree, and the aperture of the air returning valve is adjusted to the second default aperture；
When the current enthalpy difference is less than the default enthalpy difference, the aperture for controlling the new air-valve increases, and the control return air
The aperture of valve reduces.
10. the progress control method of fresh air system as claimed in claim 9, which is characterized in that
When the current enthalpy difference is less than the default enthalpy difference, the aperture of the new air-valve setting with its opposite maximum opening is controlled
Tentering degree increases, and the aperture of the control air returning valve is reduced with the setting amplitude of its opposite maximum opening.
11. the progress control method of fresh air system as claimed in claim 8, which is characterized in that when fresh air system main body is also wrapped
When including the exhaust blower being set in the air exhaust passage, the progress control method further includes：
It is determined according to the aperture of the new air-valve after adjusting and is sent into indoor fresh air volume in the unit interval；According in the unit interval
It is sent into indoor fresh air volume and determines the exhaust air rate for needing discharge outdoor in the unit interval, and according to needing to arrange in the unit interval
Go out the rotating speed that outdoor exhaust air rate adjusts the exhaust blower.
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| CN201810541499.5A CN108679774A (en) | 2018-05-30 | 2018-05-30 | A kind of progress control method of fresh air system and fresh air system |
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| CN109883026A (en) * | 2019-01-16 | 2019-06-14 | 际高建业有限公司 | A kind of air-conditioning system and its control method of independent temperature-humidity control |
| CN110160246A (en) * | 2019-05-30 | 2019-08-23 | 广东美的暖通设备有限公司 | Operation method, fresh air conditioner and the computer readable storage medium of compressor |
| CN110920645A (en) * | 2019-11-01 | 2020-03-27 | 浙江盾安轨道交通设备有限公司 | System and method for dehumidifying train air conditioning unit, computer device and storage medium |
| CN110953652A (en) * | 2019-12-18 | 2020-04-03 | 广西苏中达科智能工程有限公司 | Inter-row air conditioner indoor unit with return air selection function and control method thereof |
| CN111023383A (en) * | 2019-12-18 | 2020-04-17 | 广西苏中达科智能工程有限公司 | Critical enthalpy difference compensation control method |
| CN111649459A (en) * | 2020-05-26 | 2020-09-11 | 西安工程大学 | Textile air conditioner energy-saving automatic control method based on expert PID |
| CN112178886A (en) * | 2020-09-14 | 2021-01-05 | Tcl空调器(中山)有限公司 | Control method for introducing fresh air into air conditioner, intelligent terminal and storage medium |
| CN113757947A (en) * | 2021-09-30 | 2021-12-07 | 海信（山东）空调有限公司 | Air conditioner control method and air conditioner |
| CN114279027A (en) * | 2021-12-09 | 2022-04-05 | 北京环都拓普空调有限公司 | Enthalpy difference bypass control method and system for fresh air equipment |
| CN114322261A (en) * | 2021-12-22 | 2022-04-12 | 珠海格力电器股份有限公司 | Constant temperature and humidity control method and device and constant temperature and humidity air conditioner |
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| CN109883026A (en) * | 2019-01-16 | 2019-06-14 | 际高建业有限公司 | A kind of air-conditioning system and its control method of independent temperature-humidity control |
| CN110160246A (en) * | 2019-05-30 | 2019-08-23 | 广东美的暖通设备有限公司 | Operation method, fresh air conditioner and the computer readable storage medium of compressor |
| CN110920645A (en) * | 2019-11-01 | 2020-03-27 | 浙江盾安轨道交通设备有限公司 | System and method for dehumidifying train air conditioning unit, computer device and storage medium |
| CN110953652A (en) * | 2019-12-18 | 2020-04-03 | 广西苏中达科智能工程有限公司 | Inter-row air conditioner indoor unit with return air selection function and control method thereof |
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| CN111649459B (en) * | 2020-05-26 | 2021-12-14 | 西安工程大学 | Textile air conditioner energy-saving automatic control method based on expert PID |
| CN111649459A (en) * | 2020-05-26 | 2020-09-11 | 西安工程大学 | Textile air conditioner energy-saving automatic control method based on expert PID |
| CN112178886A (en) * | 2020-09-14 | 2021-01-05 | Tcl空调器(中山)有限公司 | Control method for introducing fresh air into air conditioner, intelligent terminal and storage medium |
| CN113757947A (en) * | 2021-09-30 | 2021-12-07 | 海信（山东）空调有限公司 | Air conditioner control method and air conditioner |
| CN113757947B (en) * | 2021-09-30 | 2023-03-03 | 海信空调有限公司 | Air conditioner control method and air conditioner |
| CN114279027A (en) * | 2021-12-09 | 2022-04-05 | 北京环都拓普空调有限公司 | Enthalpy difference bypass control method and system for fresh air equipment |
| CN114322261A (en) * | 2021-12-22 | 2022-04-12 | 珠海格力电器股份有限公司 | Constant temperature and humidity control method and device and constant temperature and humidity air conditioner |
| CN115127198A (en) * | 2022-07-26 | 2022-09-30 | 小米科技(武汉)有限公司 | Air conditioner, control method and device thereof and storage medium |
| CN115127198B (en) * | 2022-07-26 | 2024-03-26 | 小米科技(武汉)有限公司 | Air conditioner, control method and device thereof and storage medium |
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