CN109668249A - Air conditioner energy conservation control system and method - Google Patents
Air conditioner energy conservation control system and method Download PDFInfo
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- CN109668249A CN109668249A CN201811347119.0A CN201811347119A CN109668249A CN 109668249 A CN109668249 A CN 109668249A CN 201811347119 A CN201811347119 A CN 201811347119A CN 109668249 A CN109668249 A CN 109668249A
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- Prior art keywords
- selector valve
- state
- evaporator
- mixer selector
- temperature
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Classifications
-
- 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
- F24F11/46—Improving electric energy efficiency or saving
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
Abstract
The invention discloses a kind of air conditioner energy conservation control system and methods, wherein, the control system includes load power sensor, indoor temperature transmitter, outdoor temperature sensor, refrigeration unit, mixer selector valve and controller, refrigeration unit includes evaporator and pressure fan, mixer selector valve has first state and the second state, and in first state, outdoor air is sucked after-blow to evaporator from mixer selector valve by pressure fan, in the second state, room air is sucked after-blow to evaporator from mixer selector valve by pressure fan；Controller is opened or is stopped to the room temperature of power, indoor temperature transmitter detection and the outdoor temperature control evaporator of outdoor sensor detection loaded in the space to be cooled detected according to load power sensor, and control mixer selector valve switches between the first state and a second state.The air conditioner energy conservation control system and method provided according to embodiments of the present invention, can reduce the energy consumption of system, reach energy-efficient purpose.
Description
Technical field
The present invention relates to air conditioner energy saving control technology field more particularly to a kind of air conditioner energy conservation control system and methods.
Background technique
In space, the equipment that air conditioner is adjusted as temperature, commonly used in maintaining temperature in space setting
Determine temperature, it is ensured that people or equipment in space are in suitable temperature environment.
Air conditioner is a kind of powerful device, and continuous service needs to consume a large amount of electric energy, saves electricity to reduce energy consumption
Can, transducer air conditioning can reduce energy consumption using variable frequency adjustment control technology to a certain extent.However, working as some spaces
When interior heat source is mostly main with electrical equipment, such as computer room, equipment room, working space etc., then the temperature in these spaces
It is relatively high, when carrying out temperature control and regulation to these spaces using air conditioner, it is still desirable to consume a large amount of electric energy.
In view of this, it is necessary to provide control systems and method that one kind can further decrease air conditioner energy consumption.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of air conditioner energy conservation control system.
It is another object of the present invention to propose a kind of air conditioner energy saving control method.
To achieve the above object, on the one hand, air conditioner energy conservation control system according to an embodiment of the present invention, comprising:
Load power sensor, to detect the power to load in cold space；
Indoor temperature transmitter, it is described to the room temperature in cold space to detect；
Outdoor temperature sensor, it is described to the outdoor temperature outside cold space to detect；
Refrigeration unit, the refrigeration unit include evaporator and pressure fan, and the air side of the pressure fan is towards the steaming
Device is sent out, to blow to the evaporator to air, and is entered to after the evaporator described to cold space；
Mixer selector valve, the mixer selector valve has first state and the second state, when the mixer selector valve is in the first state
When, the outdoor air to outside cold space from mixer selector valve sucking after-blow to the evaporator, is worked as institute by the pressure fan
When stating mixer selector valve and being in second state, the pressure fan inhales the room air in cold space from the mixer selector valve
Enter after-blow to the evaporator；
Controller, the controller and the load power sensor, indoor temperature transmitter, outdoor temperature sensor,
Refrigeration unit and the connection of mixer selector valve signal, are opened to control the evaporator according to the power, room temperature and outdoor temperature
It opens or stops, and the control mixer selector valve switches between the first state and the second state.
According to one embodiment of present invention, the mixer selector valve includes air inlet, exhaust outlet, the first communication port and the second company
Port, first communication port are communicated with the inlet side of the pressure fan, and second communication port is connected with described to cold space
It is logical；
When the mixer selector valve is in the first state, the air inlet is connected with first communication port, described
Air outlet is connected with second communication port, when the mixer selector valve is in second state, first communication port with
Second communication port is connected.
According to one embodiment of present invention, the controller is specifically used for according to the power, outdoor temperature and interior
Total heat flow gain described in temperature computation to cold space, and according to total heat flow gain calculate it is described to cold space in the given time
Institute's receptible maximum air themperature when being cooled to set temperature；
When the outdoor temperature is equal to or less than the maximum air themperature, the controller controls the evaporator and stops
Only, it and controls the mixer selector valve and switches to the first state, when the outdoor temperature is higher than the maximum air themperature, institute
It states controller and controls the evaporator unlatching, and control the mixer selector valve and be switched to second state.
According to one embodiment of present invention, the controller for calculating the total heat flow gain according to the following formula:
Total heat flow gain=interior heat gain-thermal loss gain；
Indoor heat gain=the Power x heat factor；
Thermal loss gain=(room temperature-outdoor temperature) × heat loss constant.
According to one embodiment of present invention, the controller for calculating the maximum Air Temperature according to the following formula
Degree:
Maximum air themperature=the set temperature-(total heat flow gain/pressure fan flow) × correction factor.
It according to one embodiment of present invention, further include outdoor dew point temperature sensor, it is described to cold space to detect
Outer dew-point temperature, the controller are used to control the evaporator when the dew-point temperature is greater than setting threshold values and open, and
It controls the mixer selector valve and switches to second state.
On the other hand, air conditioner energy saving control method according to an embodiment of the present invention, comprising:
Acquisition testing wait in cold space load power, in cold space room temperature, to the outdoor temp outside cold space
Degree；
Evaporator unlatching is controlled according to the power, room temperature and outdoor temperature or is stopped, and control mixer selector valve exists
Switch between the first state and the second state；
When mixer selector valve is in the first state, pressure fan inhales the outdoor air to outside cold space from mixer selector valve
Enter enter after after-blow pervaporation device it is described to cold space, when mixer selector valve be in the second state, pressure fan will described in cold space
Interior room air enters described to cold space after sucking after-blow pervaporation device from mixer selector valve.
According to one embodiment of present invention, evaporator is controlled according to the power, room temperature and outdoor temperature to open
Or stop, and control mixer selector valve switches between the first state and the second state and includes:
The total heat flow gain to cold space is calculated according to the power, outdoor temperature and room temperature, and according to total
Heat gain calculates the receptible maximum air themperature of institute when cold space is cooled to set temperature in the given time；
When the outdoor temperature is equal to or less than the maximum air themperature, the controller controls the evaporator and stops
Only, it and controls the mixer selector valve and switches to the first state, when the outdoor temperature is higher than the maximum air themperature, institute
It states controller and controls the evaporator unlatching, and control the mixer selector valve and be switched to second state.
According to one embodiment of present invention, the total heat flow gain is calculated according to the following formula:
Total heat flow gain=interior heat gain-thermal loss gain；
Indoor heat gain=the Power x heat factor；
Thermal loss gain=(room temperature-outdoor temperature) × heat loss constant.
According to one embodiment of present invention, the maximum air themperature is calculated according to the following formula:
Maximum air themperature=the set temperature-(total heat flow gain/pressure fan flow) × correction factor.
The air conditioner energy conservation control system and method provided according to embodiments of the present invention, controller in cold space according to load
Power, room temperature and outdoor temperature control the evaporator and open or stop, and the control mixer selector valve is described the
Switch between one state and the second state；When mixer selector valve is in first state, pressure fan is by the outdoor to outside cold space
Air is from mixer selector valve sucking after-blow to the evaporator, and when mixer selector valve is in second state, pressure fan will be described
After-blow is sucked to the evaporator from the mixer selector valve to the room air in cold space；In other words, method of the invention, especially
Suitable for more to load in cold space, the larger equal application scenarios of power, controller can power according to load, room temperature
And outdoor temperature control evaporator start or stop, when the evaporator stops operating, pressure fan directly by outdoor air be passed through to
To cold space, cooled down with treating cold space by outdoor air, in this way, the energy consumption of system can be reduced, reaches energy-efficient
Purpose.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of air conditioner energy conservation control system of the embodiment of the present invention (mixer selector valve is in first state)；
Fig. 2 is the structural schematic diagram of air conditioner energy conservation control system of the embodiment of the present invention (mixer selector valve is in the second state)；
Fig. 3 is the flow chart of air conditioner energy saving control method of the embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention, based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " " axial direction ", " circumferential direction ", " radial direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
The air conditioner energy conservation control system and method for the present invention is described in detail embodiment with reference to the accompanying drawings.
Referring to figs. 1 to the air conditioner energy conservation control system shown in Fig. 2, provided according to embodiments of the present invention, including bearing power
Sensor 10, indoor temperature transmitter 11, outdoor temperature sensor 12, refrigeration unit, mixer selector valve 15 and controller 16.
Specifically, load power sensor 10 is to detect the power to load 21 in cold space 20.To in cold space 20
Equipment (load 21) can generate heat at work, and then generate heat.Also, the equipment of work is more, then the heat generated is got over
Greatly.
Indoor temperature transmitter 11 is described to the room temperature in cold space 20 to detect.
Outdoor temperature sensor 12 is described to the outdoor temperature outside cold space 20 to detect.
Refrigeration unit includes evaporator 13 and pressure fan 14, the air side of the pressure fan 14 towards the evaporator 13,
To blow to the evaporator 13 to air, and enter to after the evaporator 13 described to cold space 20.
It is understood that refrigeration unit further includes the parts such as condenser, compressor, the construction of these parts and work are former
Reason is well known to those skilled in the art, here, repeating no more.
Mixer selector valve 15 has first state and the second state, described when the mixer selector valve 15 is in the first state
The outdoor air to outside cold space 20 from the mixer selector valve 15 sucking after-blow to the evaporator 13, is worked as institute by pressure fan 14
When stating mixer selector valve 15 and being in second state, the pressure fan 14 is by the room air in cold space 20 from described mixed
Air-valve 15 sucks after-blow to the evaporator 13.
Controller 16 and 21 power sensors 10 of the load, indoor temperature transmitter 11, outdoor temperature sensor 12, system
Cold group and the connection of 15 signal of mixer selector valve, to control the evaporator 13 according to the power, room temperature and outdoor temperature
It opens or stops, and the control mixer selector valve 15 switches between the first state and the second state.
Such as when evaporator 13 stops and mixer selector valve 15 is in first state, outdoor air is entered by mixer selector valve 15 to be sent
Blower 14 is blowing to evaporator 13 by pressure fan 14, and enters to after evaporator 13 in cold space 20, due at this time
Evaporator 13 is in halted state, so, evaporator 13 will not freeze to outdoor air, at this point, outdoor air enters to
To directly treat and cool down in cold space 20 in cold space 20.
And when evaporator 13 works and mixer selector valve 15 is in the second state, outdoor air cannot be introduced into mixer selector valve 15, to
Room air is sucked into pressure fan 14 in cold space 20, then blows to evaporator 13 by pressure fan 14, at evaporator 13
In working condition, so evaporator 13 enter back into after refrigeration cool-down to cold space 20 room air flowed through, in this way,
So that room air carries out circularly cooling by evaporator 13.
The air conditioner energy conservation control system and method provided according to embodiments of the present invention, controller 16 is according to in cold space 20
Power, room temperature and the outdoor temperature of load 21 control the evaporator 13 and open or stop, and the control mixer selector valve
15 switch between the first state and the second state；When mixer selector valve 15 is in first state, pressure fan 14 will it is described to
Outdoor air outside cold space 20 sucks after-blow to the evaporator 13 from the mixer selector valve 15, when mixer selector valve 15 is in described the
When two-state, the room air in cold space 20 is sucked after-blow to the evaporation from the mixer selector valve 15 by pressure fan 14
Device 13；In other words, method of the invention is particularly suitable for, power larger equal application scenarios more to load 21 in cold space 20,
Controller 16 can be started or stoped according to the power of load 21, room temperature and outdoor temperature control evaporator 13, work as evaporation
When device 13 stops working, outdoor air is directly passed through to cold space 20 by pressure fan 14, to treat cold sky by outdoor air
Between 20 cool down, in this way, the energy consumption of system can be reduced, reach energy-efficient purpose.
In one embodiment of the invention, mixer selector valve 15 includes air inlet A, exhaust outlet B, the first communication port C and second
Communication port D, the first communication port C are communicated with the inlet side of the pressure fan 14, the second communication port D and described to cold sky
Between 20 be connected.When the mixer selector valve 15 is in the first state, the air inlet A is connected with the first communication port C
Logical, the air outlet is connected with the second communication port D, when the mixer selector valve 15 is in second state, described the
One communication port C is connected with the second communication port D.
When evaporator 13 stops and mixer selector valve 15 is in first state, outdoor air flows to the first connection from air inlet A
Mouth C, then pressure fan 14 is entered to from the first communication port C, then evaporator 13 is blowed to by pressure fan 14, and after evaporator 13
It enters to in cold space 20.Meanwhile the room air in space to be cooled flows to air outlet from the second communication port D, finally from
Air outlet is discharged into atmosphere, in this way, the outdoor air of lower temperature is flowed into cold space 20, and to higher temperature in cold space 20
Room air is expelled to atmosphere, realizes cooling.
And when the work of evaporator 13 and when mixer selector valve 15 is in the second state, to the room air in cold space 20 from second
Communication port D flows to the first communication port C, then blows to evaporator 13 by pressure fan 14, since evaporator 13 is in running order, institute
The room air that flows through enter back into after refrigeration cool-down to cold space 20 with evaporator 13, in this way, making room air
Circularly cooling is carried out by evaporator 13.
In some embodiments of the invention, controller 16 is specifically used for according to the power, outdoor temperature and Indoor Temperature
Degree calculates the total heat flow gain to cold space 20, and according to total heat flow gain calculate it is described to cold space 20 in the predetermined time
Institute's receptible maximum air themperature when being inside cooled to set temperature.
When the outdoor temperature is equal to or less than the maximum air themperature, the controller 16 controls the evaporator
13 stop, and control the mixer selector valve 15 and switch to the first state, when the outdoor temperature is higher than the maximum Air Temperature
When spending, the controller 16 controls the evaporator 13 and opens, and controls the mixer selector valve 15 and be switched to second state.
That is, 21 power sensors 10 of load, indoor temperature transmitter 11, outdoor temperature sensor 12 are real-time respectively
Power, room temperature and outdoor temperature of the ground acquisition to load 21 in cold space 20, and controller 16 is first according to the function of load 21
Rate, room temperature and outdoor temperature calculate total heat energy gain, calculate space to be cooled further according to total heat energy gain pre-
It is cooled to set temperature in fixing time, the temperature maximum (i.e. maximum air themperature) for the air for needing to be passed through that is to say, if
The temperature for the air being passed through is equal to or less than the maximum temperature value, then can satisfy in the given time reduces room temperature
It, cannot be in the given time by room temperature to setting value, and if the temperature for the air being passed through is higher than the maximum temperature value
It is reduced to setting value.
As a result, again by comparing outside air temperature and the maximum air themperature, when the outdoor temperature is equal to
Or when lower than the maximum air themperature, controller 16, which controls evaporator 13, to be stopped, and is controlled mixer selector valve 15 and switched to described the
One state is treated cooling space using outdoor air and is carried out at this point, can be passed directly into outdoor air in cold space 20
Cooling, and ensure that the room temperature in the given time to cold space 20 can reduce to set temperature.
When the outdoor temperature is higher than the maximum air themperature, controller 16 controls the evaporator 13 and opens, and
It controls the mixer selector valve 15 and is switched to second state.At this point, outdoor air can not be in the given time by space to be cooled
Temperature be reduced to set temperature, so, directly by room air be discharged and blow to evaporator 13 via pressure fan 14, utilize steaming
It sends out device 13 and circularly cooling is carried out to room air, the room temperature to cold space 20 is reduced to set temperature in this way, meeting
It is required that.
In the present embodiment, by calculating the total heat energy gain and maximum air themperature in space to be cooled, it may be implemented not
It in the case where with total heat energy gain, such as when total heat energy gain is smaller, is cooled down by external outdoor air, without starting
Evaporator 13, in this way, reaching energy-efficient purpose.And total heat energy gain it is larger when, can star evaporator 13, and then meet cooling
It is required that.
Specifically, controller 16 for calculating the total heat flow gain according to the following formula:
Total heat flow gain=interior heat gain-thermal loss gain；
Indoor heat gain=the Power x heat factor；
Thermal loss gain=(room temperature-outdoor temperature) × heat loss constant.
Wherein, the load more than 21 to the work in cold space 20, power is bigger, and the heat that when work generates is more, right
It answers, indoor heat gain is bigger, simultaneously as there are heats to exchange between space to be cooled and outside atmosphere, accordingly, there exist
Thermal loss gain, and the coefficient of heat conduction of the thermal loss gain and space to be cooled, the factors such as outdoor temperature are related.It will
Indoor heat gain, which subtracts thermal loss gain, can be obtained total heat flow gain.
Specifically, controller 16 for calculating the maximum air themperature according to the following formula:
Maximum air themperature=the set temperature-(total heat flow gain/pressure fan flow) × correction factor.
Wherein, pressure fan flow refers to that 14 unit time of pressure fan is delivered to the air mass flow in space to be cooled.
It in some embodiments of the invention, further include outdoor dew point temperature sensor 17, it is described to cold sky to detect
Between dew-point temperature outside 20, the controller 16 is used to control the evaporator when the dew-point temperature is greater than setting threshold values
13 open, and control the mixer selector valve 15 and switch to second state.
It, may after being passed through to space to be cooled since when outdoor dew-point temperature is higher, the humidity of outdoor air is larger
The performance of load 21 is influenced, so, when dew-point temperature is greater than setting threshold values, controls the evaporator 13 and open, and control institute
It states mixer selector valve 15 and switches to second state, that is to say, switch to and circularly cooling is carried out to room air by evaporator 13
Mode avoids in such a way that outdoor air is cooled down.
It should be noted that the priority of outdoor dew-point temperature is greater than the priority of maximum air themperature, that is to say, that only
Outdoor dew-point temperature is wanted to be greater than setting threshold values, controller 16 controls the evaporator 13 and opens, and controls the mixer selector valve 15
Switch to second state.At this time, it is no longer necessary to judge whether outdoor temperature is equal to or less than maximum air themperature, change speech
It, even if outdoor temperature at this time is equal to or less than maximum air themperature, still control evaporator 13 is opened, and mixer selector valve 15 switches
To the second state.In this way, can play a protective role to the load 21 for ensuring to treat in cooling space.
Referring to shown in Fig. 3, air conditioner energy saving control method according to an embodiment of the present invention, comprising:
S10, acquisition testing wait for the power of load 21 in cold space 20, in cold space 20 room temperature, to cold space
Outdoor temperature outside 20.
S11, the unlatching of evaporator 13 is controlled according to the power, room temperature and outdoor temperature or is stopped, and control is mixed
Air-valve 15 switches between the first state and the second state.
S12, when mixer selector valve 15 is in the first state, pressure fan 14 is by the outdoor air to outside cold space 20
It is sent to cold space 20 when mixer selector valve 15 is in the second state described in entering after sucking after-blow pervaporation device 13 from mixer selector valve 15
Blower 14 enters described to cold after the room air after in cold space 20 is sucked after-blow pervaporation device 13 from mixer selector valve 15
Space 20.
In one embodiment of the invention, evaporator 13 is controlled according to the power, room temperature and outdoor temperature to open
It opens or stops, and control mixer selector valve 15 switches between the first state and the second state and includes:
According to the power, outdoor temperature and room temperature calculating the total heat flow gain to cold space 20, and according to
Total heat flow gain calculates the receptible maximum Air Temperature of institute when cold space 20 is cooled to set temperature in the given time
Degree；
When the outdoor temperature is equal to or less than the maximum air themperature, the controller 16 controls the evaporator
13 stop, and control the mixer selector valve 15 and switch to the first state, when the outdoor temperature is higher than the maximum Air Temperature
When spending, the controller 16 controls the evaporator 13 and opens, and controls the mixer selector valve 15 and be switched to second state.
In one embodiment of the invention, the total heat flow gain is calculated according to the following formula:
Total heat flow gain=interior heat gain-thermal loss gain；
Indoor heat gain=the Power x heat factor；
Thermal loss gain=(room temperature-outdoor temperature) × heat loss constant.
In one embodiment of the invention, the maximum air themperature is calculated according to the following formula:
Maximum air themperature=the set temperature-(total heat flow gain/14 flow of pressure fan) × correction factor.
The air conditioner energy saving control method provided according to embodiments of the present invention, controller 16 is according to load 21 in cold space 20
Power, room temperature and outdoor temperature control the evaporator 13 and open or stop, and the control mixer selector valve 15 is in institute
It states and switches between first state and the second state；When mixer selector valve 15 is in first state, pressure fan 14 will be described to cold space
Outdoor air outside 20 is from the mixer selector valve 15 sucking after-blow to the evaporator 13, when mixer selector valve 15 is in second state
When, the room air in cold space 20 is sucked after-blow to the evaporator 13 from the mixer selector valve 15 by pressure fan 14；
In other words, method of the invention is particularly suitable for, power larger equal application scenarios more to load 21 in cold space 20, control
Device 16 can be started or stoped according to the power of load 21, room temperature and outdoor temperature control evaporator 13, when evaporator 13
When stopping working, outdoor air is directly passed through to cold space 20 by pressure fan 14, to treat cold space 20 by outdoor air
Cool down, in this way, the energy consumption of system can be reduced, reaches energy-efficient purpose.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of air conditioner energy conservation control system, is characterized in that, comprising:
Load power sensor, to detect the power to load in cold space；
Indoor temperature transmitter, it is described to the room temperature in cold space to detect；
Outdoor temperature sensor, it is described to the outdoor temperature outside cold space to detect；
Refrigeration unit, the refrigeration unit include evaporator and pressure fan, the air side of the pressure fan towards the evaporator,
To blow to the evaporator to air, and enter to after the evaporator described to cold space；
Mixer selector valve, the mixer selector valve have first state and the second state, when the mixer selector valve is in the first state, institute
Pressure fan is stated by the outdoor air to outside cold space from mixer selector valve sucking after-blow to the evaporator, when the mixed wind
When valve is in second state, the room air in cold space is sucked after-blow from the mixer selector valve by the pressure fan
To the evaporator；
Controller, the controller and the load power sensor, indoor temperature transmitter, outdoor temperature sensor, refrigeration
Unit and the connection of mixer selector valve signal, to according to the power, room temperature and outdoor temperature control the evaporator open or
Stop, and the control mixer selector valve switches between the first state and the second state.
2. air conditioner energy conservation control system according to claim 1, which is characterized in that the mixer selector valve includes air inlet, row
Air port, the first communication port and the second communication port, first communication port are communicated with the inlet side of the pressure fan, and described second connects
Port is connected with described to cold space；
When the mixer selector valve is in the first state, the air inlet is connected with first communication port, the outlet air
Mouthful be connected with second communication port, when the mixer selector valve is in second state, first communication port with it is described
Second communication port is connected.
3. air conditioner energy conservation control system according to claim 1, which is characterized in that the controller is specifically used for according to institute
It states power, outdoor temperature and room temperature and calculates the total heat flow gain to cold space, and institute is calculated according to total heat flow gain
State the receptible maximum air themperature of institute when cold space is cooled to set temperature in the given time；
When the outdoor temperature is equal to or less than the maximum air themperature, the controller, which controls the evaporator, to be stopped,
And control the mixer selector valve and switch to the first state, it is described when the outdoor temperature is higher than the maximum air themperature
Controller controls the evaporator and opens, and controls the mixer selector valve and be switched to second state.
4. air conditioner energy conservation control system according to claim 3, which is characterized in that the controller is used for according to following public affairs
Formula calculates the total heat flow gain:
Total heat flow gain=interior heat gain-thermal loss gain；
Indoor heat gain=the Power x heat factor；
Thermal loss gain=(room temperature-outdoor temperature) × heat loss constant.
5. air conditioner energy conservation control system according to claim 3, which is characterized in that the controller is used for according to following public affairs
Formula calculates the maximum air themperature:
Maximum air themperature=the set temperature-(total heat flow gain/pressure fan flow) × correction factor.
6. air conditioner energy conservation control system according to claim 1, which is characterized in that further include outdoor dew-point temperature sensing
Device, described to the dew-point temperature outside cold space to detect, the controller is used to be greater than setting threshold values in the dew-point temperature
When, it controls the evaporator and opens, and control the mixer selector valve and switch to second state.
7. a kind of air conditioner energy saving control method characterized by comprising
Acquisition testing wait in cold space load power, in cold space room temperature, to the outdoor temperature outside cold space；
Evaporator unlatching is controlled according to the power, room temperature and outdoor temperature or is stopped, and control mixer selector valve is described
Switch between first state and the second state；
When mixer selector valve is in the first state, pressure fan is by the outdoor air after outside cold space from after mixer selector valve sucking
It blows over after evaporator into described to cold space, when mixer selector valve is in the second state, pressure fan is by described in cold space
Room air enters described to cold space after sucking after-blow pervaporation device from mixer selector valve.
8. air conditioner energy saving control method according to claim 1, which is characterized in that according to the power, room temperature and
Outdoor temperature controls evaporator and opens or stop, and control mixer selector valve switches packet between the first state and the second state
It includes:
The total heat flow gain to cold space is calculated according to the power, outdoor temperature and room temperature, and according to total amount of heat
Gain calculates the receptible maximum air themperature of institute when cold space is cooled to set temperature in the given time；
When the outdoor temperature is equal to or less than the maximum air themperature, the controller, which controls the evaporator, to be stopped,
And control the mixer selector valve and switch to the first state, it is described when the outdoor temperature is higher than the maximum air themperature
Controller controls the evaporator and opens, and controls the mixer selector valve and be switched to second state.
9. air conditioner energy saving control method according to claim 8, which is characterized in that calculate the total heat according to the following formula
Flow gain:
Total heat flow gain=interior heat gain-thermal loss gain；
Indoor heat gain=the Power x heat factor；
Thermal loss gain=(room temperature-outdoor temperature) × heat loss constant.
10. air conditioner energy saving control method according to claim 8, which is characterized in that described in calculating according to the following formula most
Big air themperature:
Maximum air themperature=the set temperature-(total heat flow gain/pressure fan flow) × correction factor.
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| CN201811347119.0A CN109668249A (en) | 2018-11-13 | 2018-11-13 | Air conditioner energy conservation control system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113175714A (en) * | 2021-04-30 | 2021-07-27 | 西藏宁算科技集团有限公司 | Evaporative cooling unit, control method and related device |
| CN115355595A (en) * | 2022-10-20 | 2022-11-18 | 靖江胜新空调制冷设备有限公司 | Indoor temperature adjusting method |
| CN116066970A (en) * | 2023-04-04 | 2023-05-05 | 重庆跃达新能源有限公司 | Energy-saving control method and system for central air conditioner |
| CN116088607A (en) * | 2023-01-17 | 2023-05-09 | 上海艾临科智能科技有限公司 | Energy storage device-oriented temperature control method and device, electronic equipment and storage medium |
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| CN102829528A (en) * | 2012-09-14 | 2012-12-19 | 中国联合网络通信集团有限公司 | Method, device and system for controlling temperature of communication machine room |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113175714A (en) * | 2021-04-30 | 2021-07-27 | 西藏宁算科技集团有限公司 | Evaporative cooling unit, control method and related device |
| CN115355595A (en) * | 2022-10-20 | 2022-11-18 | 靖江胜新空调制冷设备有限公司 | Indoor temperature adjusting method |
| CN115355595B (en) * | 2022-10-20 | 2023-03-10 | 靖江胜新空调制冷设备有限公司 | Indoor temperature adjusting method |
| CN116088607A (en) * | 2023-01-17 | 2023-05-09 | 上海艾临科智能科技有限公司 | Energy storage device-oriented temperature control method and device, electronic equipment and storage medium |
| CN116088607B (en) * | 2023-01-17 | 2023-10-13 | 上海艾临科智能科技有限公司 | Energy storage device-oriented temperature control method and device, electronic equipment and storage medium |
| CN116066970A (en) * | 2023-04-04 | 2023-05-05 | 重庆跃达新能源有限公司 | Energy-saving control method and system for central air conditioner |
| CN116066970B (en) * | 2023-04-04 | 2023-07-28 | 重庆跃达新能源有限公司 | Energy-saving control method and system for central air conditioner |
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