CN102762937A - Energy saving device and method for cooling and heating equipment - Google Patents
Energy saving device and method for cooling and heating equipment Download PDFInfo
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- CN102762937A CN102762937A CN2010800346137A CN201080034613A CN102762937A CN 102762937 A CN102762937 A CN 102762937A CN 2010800346137 A CN2010800346137 A CN 2010800346137A CN 201080034613 A CN201080034613 A CN 201080034613A CN 102762937 A CN102762937 A CN 102762937A
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- 238000001816 cooling Methods 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000004044 response Effects 0.000 claims abstract description 17
- 238000004378 air conditioning Methods 0.000 claims description 56
- 238000005057 refrigeration Methods 0.000 claims description 37
- 239000003507 refrigerant Substances 0.000 claims description 28
- 230000008859 change Effects 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
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- 238000005259 measurement Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000013461 design Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 6
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- 238000012797 qualification Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
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- 238000010304 firing Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
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- 230000009467 reduction Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/01—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/23—Time delays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Heat Treatment Processes (AREA)
- Control Of Temperature (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
An energy saving device, a heating/cooling system and a method for controlling a heating/cooling system, controlling the on/off state of an apparatus for heating or cooling a working medium. The timer (24) has an adjustable timer value and provides a signal for controlling the on/off state of the device. A temperature sensor (21) measures the temperature of the working medium. A controller (20) adjusts the adjustable timing value in response to changes in the temperature of the working medium.
Description
Technical field
The present invention relates to cooling and heating system such as air-conditioning, freezing/refrigeration system and boiler etc.The invention particularly relates to and be used to cool off and the ability saveall of firing equipment and the power-economizing method that relates to control cooling and firing equipment.
Background technology
Air-conditioning and refrigeration system typically are designed under the greatest requirements of the weather conditions of expection, transmit needed cooling.For example, it is minimum temperature required that air-conditioning system can be designed to make the room that is full of the people to maintain on this year on the hottest date, and compressor--main ability consumable components--is processed the cooling that provides under this extreme condition by size.Significantly, when turning round in this case and being in the design maximum limit, seldom be with or without the consumption that chance reduces energy.Yet, because air-conditioning and refrigeration system seldom turn round with their the design maximum limit, therefore, most of time, they are excessive for work on hand, and the needed more energy of consumption rate in fact.
Fig. 1 is the sketch map of typical air-conditioning or refrigeration system.Therein, compressor and continuous condenser 1 are used on the high-tension line that comprises receiver/dryer device 2 and connecting tube 3, produce ' liquid storage ' of high pressure liquid refrigerant.Compressor 1 converts low pressure refrigerant vapor into the high pressure liquid refrigerant that can be used to cool off.In the compression of this steam, very a large amount of heating power is produced, and this heating power to be dispersed into the space that will be cooled outside, it allows refrigerant vapour under high pressure to be condensed into liquid.High-pressure pipe member 3 is transported to the space that will be cooled with high pressure liquid refrigerant, and wherein, high pressure liquid refrigerant passes needle valve 5, and needle valve is generally the part of indoor heat converter (or evaporimeter) 6, but for the sake of clarity separately illustrates.Pass needle valve 5, highly pressurised liquid is under the low pressure of indoor heat converter 6, and explosive decompress(ion) becomes steam again.In this process, a large amount of heating power pass heat exchanger 6 and from air, absorb, and make perishing air-supply air-flow get into room or the zone that is cooled.Fan 7 makes air pass heat exchanger 6 and removes so that cold air-supply air-flow 8 is provided.Low pressure refrigerant turns back to compressor 1 via the low-voltage circuit that comprises pipe fitting 4, so that be compressed and turn back to once more the high-pressure side.
Present most of air-conditionings and refrigeration system are used the simple ON/OFF temperature controller that has thermostat 19, and this thermostat is used to control compressor 1, more than 85% of energy that this has accounted for and has been consumed.In the operation that utilizes such system, when room temperature was higher than the set point of expectation, thermostat 19 made compressor keep running with continuing.When reaching the set point of expectation, so thermostat 19 with close compressor, rises up to temperature on a small quantity, this moment, compressor was restarted.Except compressor just its design limit or situation near operation under the design limit, this control method has proposed important opportunity that energy reduces.In fact, in case compressor has produced high-pressure refrigerant ' liquid storage ' completely, continue to make compressor operating to waste in fact very much energy.
Recently, the air-conditioning and the refrigeration system of new kind are introduced into, and wherein compressor uses inverter to drive device.These drive units compressor that turns round continuously depends on the load in the system and this compressor is quickened or slows down.Although these unit have been practiced thrift energy significantly, the level that energy reduces not as stop by intelligence that compressor operation obtains significantly.
Summary of the invention
According to a first aspect of the invention; Provide a kind of and be designed to heating with the equipment that changes the working media temperature or the energy saver that cooling system uses, this device comprise the equipment of being used to provide the ON/OFF signal contactor, have adjustable timing value and be provided for opening or closing the signal of contactor timer, be used for temperature sensor and the controller of being arranged to regulate adjustable timing value of the temperature of surveying work medium in response to the variation of temperature of working media.
Preferably; Energy saver is designed to use with air-conditioning or refrigeration system; This air-conditioning or refrigeration system have and are used to make cryogen source compressor for compressing and refrigerant compressed to expand therein being used to make the evaporimeter of cold air-supply air-flow cooling, controller comprise be used to compressor the contactor of ON/OFF signal be provided, have adjustable timing value and be provided for opening or closing the signal of contactor timer, be used to the controller measuring the temperature sensor of cold air-supply and be arranged to regulate adjustable timing value in response to the temperature of measured cold air-supply.
Preferably, timer is configured to open contactor, and controller is configured to trigger timer and is arranged to cut out contactor.
Preferably, controller comprises microprocessor or the electronic circuit that is suitable for detecting the signal that comes from temperature sensor, minimum cold wind pushing temperature of this signal indication and high cold wind pushing temperature.
According to a second aspect of the invention; A kind of heating or cooling system are provided, it comprise the temperature that is used to change working media equipment, be arranged to the surveying work medium temperature temperature sensor and be used for the controller that the temperature in response to the working media of institute's sensing opens and closes equipment.
Preferably; Heating or cooling system are air-conditioning or refrigeration system, and it comprises and is used to make cryogen source compressor for compressing, refrigerant compressed to expand with the evaporimeter that is used to make cold air-supply air-flow cooling therein, is arranged to measure temperature sensor and the controller that compressor is opened and closed in response to the cold wind pushing temperature of institute's sensing of the temperature of cold air-supply.
Preferably, controller comprises the timer with adjustable timing value, and the end that timer is provided in adjustable timing value makes device shutdown.
Preferably, controller comprises microprocessor or electronic circuit, and it is suitable for detecting the expression maximum temperature that comes from temperature sensor and the signal of minimum temperature, and is suitable for calculating timing value.
Preferably, this system further comprises second temperature sensor, and it is configured to measure the environment temperature in the space that will be heated or cooled, so that this equipment also can be opened and closed in response to the space temperature of institute's sensing.
According to a third aspect of the invention we, provide a control to have to be used to the heating of the equipment that changes the working media temperature or the method for cooling system, this heating or cooling system, this method comprises:
Be provided for the temperature sensor of the temperature of surveying work medium,
Measure when temperature reaches stable state and stop this equipment in time delay behind the T,
Measure temperature and when reach threshold value and start this equipment,
Measure the load on heating or the cooling system, and
Based on new T time delay of load calculation.
Preferably, the compressor of this method control air-conditioning or refrigeration system, this air-conditioning or refrigeration system have and are used to the evaporimeter that makes cryogen source compressor for compressing and refrigerant compressed expand therein and to be used to cold air-supply air-flow cooled off, and this method comprises:
Be provided for measuring the temperature sensor of the temperature of cold air-supply air-flow,
When the temperature of measuring cold air-supply air-flow reaches desired minimum of a value and stops this compressor in time delay behind the T,
When the temperature of measuring cold air-supply air-flow reaches desired max-thresholds and starts compressor,
Measure the load on air-conditioning or the refrigeration system, and
Based on new T time delay of load calculation.
Preferably, the minimum of a value of desired cold air-supply gas flow temperature is minimum steady state temperature.
Preferably, the maximum of desired cold air-supply gas flow temperature is lower than desired indoor temperature.
Preferably, the load of measuring in this system comprises the excess of measuring the temperature that exceeds threshold value.
Preferably, calculate new T time delay based on excess and comprise, if excess increases T time delay when surpassing desired out of range value, and if excess reduce T time delay during less than desired out of range value.
Preferably, the load of measuring in this system comprises the measurement rate of temperature change.
More many-side of the present invention is limited in the appended claims, perhaps will from the explanation subsequently that only mode through example provides, become obvious.
Description of drawings
Now will be only through example mode and illustrate and describe the present invention, wherein:
Fig. 1 is the air-conditioning of typical prior art or the sketch map of refrigeration system,
Fig. 2 is the simplified schematic diagram of air-conditioning according to an embodiment of the invention or refrigeration system,
Fig. 3 is typical room temperature and wind pushing temperature curve and by the sketch map of air-conditioning according to the present invention and refrigeration system employed " case point ",
Fig. 4 is air-conditioning and the microprocessor of refrigeration system running or the flow chart of software control flow process of being used for according to an embodiment of the invention,
Fig. 5 is the simplified schematic diagram of energy saver,
Fig. 6 is the simplified schematic diagram of steam generator system according to another embodiment of the invention, and
Fig. 7 send the sketch map of coolant-temperature gage curve for typical heat.
The specific embodiment
Before illustrated in detail any embodiment of the present invention, be appreciated that the present invention not with its application be defined in illustrated in the explanation subsequently or accompanying drawing in the configured and disposed details of the assembly of being explained.The present invention can have other embodiment and can be implemented in every way or carry out.And, be appreciated that phrase used herein and term are used for illustrative purposes, and should not be regarded as qualification.The present invention can be described as and for example be used for air-conditioning, but is appreciated that it has in heating and application in cooling system usually.
In one embodiment; The present invention is used to through the open and closed of compressor being controlled to utilize the high-pressure refrigerant " liquid storage " or the potential cooling of being transmitted fully; And, reduce the energy consumption in air-conditioning and the refrigeration system through continuously cooling of being transmitted and the actual loading that is provided for air-conditioning or refrigeration system being complementary.
In most preferred embodiment; The present invention provides a kind of air-conditioning or refrigeration system; And the method for a control air-conditioning system, this air-conditioning system utilizes temperature sensor to monitor the temperature of the cold air-supply that when high pressure liquid refrigerant is allowed in evaporator unit explosive ground decompress(ion), produces.Along with the running of compressor, the temperature of this cold air-supply continues to reduce, and the room or the shell that are freezed just are cooled.The detection of minimum cold wind pushing temperature shows stable room temperature condition and shows complete " liquid storage " of having realized high pressure liquid refrigerant (or potential cooling).Through the cold wind pushing temperature of monitoring on the continuous time interval, reach up to it and to show that it has reached the constant or steady state temperature of minimum of a value, can detect minimum cold air-supply condition.At this some place, and the time delay that is accompanied by dynamic change, compressor is stopped.When close compressor, temperature sensor continues the cold wind pushing temperature of monitoring, and when the point used up at high pressure liquid refrigerant, wind pushing temperature will begin to rise.In order to keep comfortable level, wind pushing temperature is allowed to be increased to the appropriate points of the room temperature setting that is lower than lowest desired subsequently.When reaching this, compressor starts again.Through restarting compressor, the artificial intelligence algorithm for design can be used to come the actual loading on the calculations of air conditioner system through monitor temperature " excessive " or in the rising of the compressor operation that restarts wind pushing temperature in the near future.This result of calculation is used to subsequently after the minimum wind pushing temperature point of next compressor operating in the cycle reaches, and prolongs or reduce the time delay of the dynamic change that is used to stop compressor.In this way, the control system works is complementary to make cooling of being transmitted and the actual loading that offers air-conditioning system continuously.The control system allows room thermostat 19 to limit the room temperature set point of expectation with the circuit working identical with room thermostat 19 thus, and the energy controller work that separates simultaneously is so that the energy consumption optimization.Major advantage of the present invention is continuous variable but significant reduction of the energy consumption of air-conditioning and refrigeration system, this with the maintenance comfort level need consistent.Minor advantage is served as reasons in the compressor start torque of the caused remarkable attenuating of minimizing of restarting compressor high pressure liquid refrigerant before.
The mode that the present invention will be described as with the domestic type air-conditioning system now realizes.This does not mean that and limits the scope of application of the present invention or function.The technical staff will appreciate that the present invention is applied to family expenses and business air conditioner and refrigeration system coequally, and is applied to heating and cooling system usually.With reference to figure 2; Air-conditioning system according to the present invention can be split-type air conditioner; Wherein compressor of air conditioner and evaporator unit 10 (after this being compressor unit 10) are set at and are typically the first outside space A, and A/C evaporator and fan unit 11 (after this being evaporator unit 11) are set at the second indoor space B of will being freezed, be typically.Two space A and B are separated by wall 12.The high pressure refrigeration line comprises near the receiver/dryer device 13 and pipe fitting 14 that is arranged on the compressor unit 10; Pipe fitting is used to pass chamber wall 12 high pressure liquid refrigerant is transported to second space B and needle valve 15 from compressor unit 10 and receiver/dryer device 13, and needle valve is arranged in the evaporator unit 11.In the simplified schematic diagram of Fig. 2, for the sake of clarity, needle valve 15 and evaporimeter are by to separate and different assemblies illustrates.Low pressure refrigerant circuit 16 passes wall 12 and guides outdoor compressor unit 10 into from indoor evaporator unit 11.In operation, compressor unit 10 is compressed into highly pressurised liquid with refrigerant gas, and it is through high-tension line 14 circulations.High-pressure refrigerant passes needle valve 15, and high-pressure refrigerant is allowed in evaporator unit 11, expand there, and comes from the heat of the air that passes evaporator unit 11 through absorption like this.Fan 17 forces air to pass evaporator unit 11, forms continuous cold airflow 18.Such air conditioning/refrigerating circuit is known in this area and can be easily understood by those skilled in the art.
In most preferred embodiment, air-conditioning system has two the compressor control devices that are connected in series that are used to open and stop compressor/condenser 10.First control device is typical room thermostat 19, and it can be machinery known in the art or electronic type.Room thermostat 19 has temperature-sensing element (device) and a pair of contactor, contactor around room temperature when the design temperature threshold value moves up and down, in response to motion or come from the signal of temperature-sensing element (device) and open or close.In the situation of air-conditioning or refrigeration system, contactor is configured to open so that when the room temperature by temperature-sensing element (device) institute sensing drops to room temperature set point, stop compressor.When room temperature is elevated to set point, add some temperature differences to prevent excessive contactor circulation time, contactor will cut out to be used for starting once more compressor.The second compressor control device is an energy-saving controller 20.Energy-saving controller 20 has second temperature-sensing element (device) 21, and it is arranged near the interior or to be used for the temperature that sensing passed or discharged the air-supply air-flow 18 of evaporator unit 11 of evaporator unit 11.Energy-saving controller also has second pair of contactor 22 and the electronic circuit or the microprocessor 23 that comprise variable delay timer 24.Timer 24 can be the integrated timer of microprocessor 23 or by the independent discrete timer of microprocessor 23 or electronic circuit control (for example, start, stop and reseting).Electronic circuit or microprocessor 23 are dynamically adjusted the delay of timer, and stop and starting compressor unit 10 in response to the signal operation contactor that comes from second temperature-sensing element (device) 21.Utilize the energy-saving controller 20 and room thermostat 19 of series connection; When energy-saving controller 20 or room thermostat 19 contactor in any is opened; Compressor stops, and when the contactor both of energy-saving controller 20 and room thermostat 19 closed, compressor was activated.Therefore, can see from specification subsequently that when the temperature of the room temperature of surrounding environment or cold airflow 18 dropped under the threshold temperature separately, the running of compressor was stopped.
To describe the preferred operations of energy-saving controller 20 with reference to figure 3, wherein, the temperature of cold air-supply air-flow 18 representes that with line C room temperature is with line D indication, and the open/close state of compressor is represented by line E.Energy controller 20 can be implemented at electronic circuit or the mode of making microprocessor.Explained the flow chart of microprocessor control among Fig. 4.When in the time 0, when starting air-conditioning system, room temperature is high, and therefore the contactor of room thermostat 19 is closed.Energy-saving controller 20 starts compressor unit 10 through relay being deenergized and closing the contactor setting that its contactor with room thermostat 19 connects at 10-15 in second.Along with the startup of compressor unit 10, energy controller 20 utilizes its temperature sensor 21 to monitor the temperature of cold air-supply air-flow 18 and opens and closes compressor in response to the variation of cold air-supply air-flow 18.Along with the room temperature D of surrounding environment continues to descend by the decline route, the temperature C of cold airflow will continue reduction.In the time 1, the temperature of cold airflow 18 reaches minimum steady state temperature.When energy-saving controller detected wind pushing temperature and reached stable state, this can realize that energy-saving controller triggers the variable delay timer through measuring two temperature differences between the consecutive intervals, its conversely behind delay interval T in times 2 close compressor.In most preferred embodiment, delay interval T was initially 2 minutes and during in response to the continuous ON/OFF cycle of the compressor of " load " on the air-conditioning system of being measured, dynamically changed.In a preferred embodiment, depend on temperature " excess " level of detected air-supply 18 in 30 seconds after compressor recovers to open, the setting of delay timer for example increases with three minutes increment, or for example with one minute increment minimizing.
Along with closing of compressor unit 10, wind pushing temperature 18 will remain on its stable state minimum of a value, and the liquid storage of the high pressure liquid refrigerant in receiver/dryer device 13 and high-pressure pipe member 14 is used up.This occurs in the time 3 among Fig. 3.The temperature C of cold airflow 18 will begin subsequently with air-conditioning system on the proportional speed of load raise.The temperature C of this cold airflow 18 is allowed to raise and reaches the qualification " switching point " 4 o'clock time up to it, and in most preferred embodiment, it is 2 ℃, is lower than the minimum room temperature of thermostat 19 qualifications that possibly run into.For example, for the operation of the data center of the operating temperature of 18 ℃ of needs, " switch temperature " will be 16 ℃, and for normal 22 ℃ room temperature running, and " switch temperature " will be 20 ℃ or the like.When the qualification that reaches the time 4 " switch temperature ", energy controller 20 deenergizes to restart compressor unit 10 its internal relay.Along with the startup of compressor, and for each ON/OFF compressor cycle, algorithm is used to measure the actual loading on air-conditioning or the refrigeration system.In a preferred embodiment, infer load according to the amount of the wind pushing temperature shown in the F among Fig. 3 " excess " when compressor is restarted.In a preferred embodiment, measure the temperature " excess " of cold airflow 18 in the time 5, its in a preferred embodiment, it is 30 seconds after having restarted compressor in the time 4.If this temperature " excess " surpasses the least restrictive temperature of the thermostat 19 that possibly run into, for being higher than 2 ℃ of switch temperatures, the value T of variable delay timer is increased so in this case.In a preferred embodiment, three minutes delay will be added into timer so that at cold airflow 18 after the time 6 reaches minimum temperature once more, the chien shih compressor keeps the state opened when long.If when this temperature " excess " did not surpass the least restrictive room temperature of the thermostat 19 that possibly run into, for being higher than 2 ℃ of switch temperatures, the value T of variable delay timer was lowered so in this case.In a preferred embodiment, T is lowered 1 second so that at cold airflow 18 after the time 6 reaches minimum temperature once more, in the less time, make compressor keep the state open.Cycle self repeats.In fact, when the load on air-conditioning or the refrigeration system increased, delay in extra three minutes was added in the continuous compressor cycle to keep comfortable level to reduce the saving of energy simultaneously.Depend on 30 seconds detected temperature " excess " levels after compressor recovers to open, the setting of delay timer is increased with 3 minutes increment or is reduced with 1 minute increment.Connect the basis in cycle by this way and by the cycle, the successive control system dynamically adjusts the level that energy reduces with the mode of guaranteeing set point and needed comfort level.
In above-mentioned preferred embodiment, known air-conditioning system can be transformed through energy controller 20 usefulness electric wires are connected with their existing room thermostats 19 according to the present invention.Many new-type air-conditioning systems have IR or the wireless remote control that is used to set room temperature set point and other functions.In the embodiment of alternative, the temperature sensor and the energy management system that need not drive by qualified electrician Laian County packed battery, it adopts wireless or infrared-ray communication is brought in the set point of adjusting air-conditioning system via the Long-distance Control input of air-conditioning system.In this embodiment; When detecting minimum wind pushing temperature and follow reasonable time to postpone; Combination through temperature sensor/control system comes close compressor, and the combination indication tele-control system of temperature sensor/control system is adjusted to maximum the setting with its set point.With with the similar mode of previous embodiment; In case " liquid storage " of high pressure liquid refrigerant used up; Wind pushing temperature will be increased to predetermined switching point; At this time point, the operation of compressor was restarted when the control system will utilize wireless or infrared communication to come through the original value that the set point that makes remote control unit turns back to it.Alternatively, the air-conditioning system of manufacturing according to the present invention can have single controller, and it has two temperature sensors, a room temperature that is used for surrounding environment, and a temperature that is used to evaporate cold air-supply.Although above-mentioned preferred embodiment is a split-type air conditioner, the present invention can be used to the air-conditioning such as the individual unit of window air conditioner equally, and is used to refrigeration system.
The load of in a preferred embodiment, inferring air-conditioning system according to the amount of the wind pushing temperature shown in the F among Fig. 3 " excessive " when compressor starts again.In the embodiment of alternative, can be according to the speed that is risen by wind pushing temperature at liquid refrigerant, the load of perhaps inferring air-conditioning system according to the amount of speed that combines wind pushing temperature to rise and wind pushing temperature " excess " with the light time.If the speed that wind pushing temperature rises is used, time value T can be increased when climbing speed surpasses first threshold so, and when being lower than second threshold value, can be lowered.
A kind of embodiment of system and method for the continuous control that is used for air-conditioning and refrigeration system energy consumption has been described.Said embodiment utilizes hardware and/or component software operation on independent air-conditioning or refrigerating plant.Depend on instantaneous system load, the control system is used for significantly reducing the energy consumption of air-conditioning and refrigeration system, simultaneously with comfort level and the temperature maintenance qualification set point at thermostat 19.Each air-conditioning or refrigerating plant will comprise a plurality of assemblies that contain compressor/condenser and refrigerant, and thermostat 19s and by the employed evaporimeter of described continuous control system, fan loop or air conditioner unit.
Described control system and method serviceability temperature sensor comes the situation of continuous monitoring by the cold air-supply air-flow that evaporimeter, fan loop or air conditioner unit transmitted of air-conditioning or refrigeration system.Utilize the algorithm and the appropriate software of artificial intelligence design, the temperature of each branch of this air-supply is used to infer the actual loading on the main energy consumable components of air-conditioning or refrigeration system.Described control system makes the compressor opening/closing or drives/close water valve, the energy consumption that optimization is consistent with the real system load thus with thermostat 19 runnings of air-conditioning or refrigeration system.
Fig. 6 shows a kind of alternative application and a kind of boiler heating system according to energy-saving appliance of the present invention.The system of being explained is the heating system that is used for family or commercial real estate, and it comprises water heater or boiler 30 and interior radiator 31.Hot water is passed to radiator 31 through hot water line 32 from boiler 30, and turns back to boiler via loop hot water line 33 from radiator.As known in the art, the room that provides wall type thermostat 34 to set to be heated or the preferred temperature in space by radiator 31.In this embodiment, energy saver 35 is measured the hot water temperature who is supplied with via the thermostat 36 in the hot water supply circuit 32.The hot water supply temperature should be measured at radiator 31 places or near radiator 31 places as far as possible.With reference to the curve map of figure 7, when water heater or boiler 30 were opened, the water temperature in the hot water supply pipeline 32 began to raise.When energy saver 35 detected the hot water temperature and reached the maximum of stable state, it possibly typically be 70-80 ℃, and boiler is closed behind time delay T, and hot water continues circulation although water-circulating pump keeps operation.The hot water temperature begins to descend, and when it reached the set point threshold value, for example it was higher than the several years of minimum room temperature, and boiler is opened once more.Water temperature begins to rise, and when it reached its maximum temperature of stable state, boiler was closed once more, and this cycle repeats.Excess F described in top example based on threshold value, adjustment time delay T.
Many-side of the present invention can be summarized as; But be not limited to; Be designed to the heating of equipment or the energy saver that cooling system uses with the temperature that changes working media, this device comprise be used to this equipment the contactor of ON/OFF signal be provided, have adjustable timing value and be provided for opening or closing the signal of contactor timer, be used for temperature sensor and the controller of being arranged to regulate adjustable timing value of the temperature of surveying work medium in response to the variations in temperature of working media.The temperature sensor of the temperature that heating or cooling system comprise the equipment that is used to change the working media temperature, be arranged to the surveying work medium and be used for the controller that this equipment opened and closed in response to working media institute sensed temperature.And the method for control heating or cooling system, it comprise the temperature that is provided for the surveying work medium temperature sensor, measure temperature when reach steady state value and stop this equipment behind the T in time delay, measure temperature when reach threshold value and start this equipment, measure on heating or the cooling system load and based on new T time delay of load calculation.
Claims (16)
1. one kind is designed to heating with the equipment that changes the working media temperature or the energy saver that cooling system uses; It is characterized in that, this device comprise the equipment of being used to provide the ON/OFF signal contactor, have adjustable timing value and be provided for opening or closing the signal of contactor timer, be used for temperature sensor and the controller of being arranged to regulate adjustable timing value of the temperature of surveying work medium in response to the variation of temperature of working media.
2. one kind is designed to the energy saver that uses with air-conditioning or refrigeration system; This air-conditioning or refrigeration system have and are used to make cryogen source compressor for compressing and refrigerant compressed to expand therein to be used to make the evaporimeter of cold air-supply air-flow cooling; It is characterized in that, this device comprise be used to compressor the contactor of ON/OFF signal be provided, have adjustable timing value and be provided for opening or closing the signal of contactor timer, be used to the controller measuring the temperature sensor of cold air-supply and be arranged to regulate adjustable timing value in response to the temperature of measured cold air-supply.
3. according to the energy saver of claim 1 or 2, it is characterized in that timer is configured to open contactor, and controller is configured to trigger timer and is arranged to cut out contactor.
4. according to each energy saver of aforementioned claim, it is characterized in that controller comprises microprocessor or the electronic circuit that is suitable for detecting the signal that comes from temperature sensor, minimum cold wind pushing temperature of this signal indication and high cold wind pushing temperature.
5. one kind is heated or cooling system; It is characterized in that; It comprises, be used to change the temperature of working media equipment, be arranged to the surveying work medium temperature temperature sensor and be used for the controller that the temperature in response to the working media of institute's sensing opens and closes equipment.
6. air-conditioning or refrigeration system; It is characterized in that; It comprises, is used to make compression device, the refrigerant compressed of cryogen source compression to expand with the evaporimeter that is used to make cold air-supply air-flow cooling therein, be provided with the temperature sensor of the temperature of measuring cold air-supply and the controller that compressor opened and closed in response to the cold wind pushing temperature of institute's sensing.
7. according to the system of claim 5 or 6, it is characterized in that controller comprises the timer with adjustable timing value, the end that timer is provided in adjustable timing value makes device shutdown.
8. according to each system in the claim 5 to 7, it is characterized in that controller comprises microprocessor or electronic circuit, it is suitable for detecting the expression maximum temperature that comes from temperature sensor and the signal of minimum temperature, and is suitable for calculating timing value.
9. according to each system in the claim 5 to 7; It is characterized in that it further comprises, second temperature sensor; It is configured to measure the environment temperature in the space that will be heated or cooled, so that this equipment also can be opened and closed in response to the space temperature of institute's sensing.
10. a control has heating or the method for cooling system of the equipment of the temperature that is used to change working media, it is characterized in that this method comprises:
Be provided for the temperature sensor of the temperature of surveying work medium,
Measure when temperature reaches steady state value and stop this equipment in time delay behind the T,
Measure temperature and when reach threshold value and start this equipment,
Measure the load on heating or the cooling system, and
Based on new T time delay of load calculation.
11. method of controlling the compressor of air-conditioning or refrigeration system; This air-conditioning or refrigeration system have and are used to make cryogen source compressor for compressing and refrigerant compressed to expand therein to be used to make the evaporimeter of cold air-supply air-flow cooling; It is characterized in that this method comprises:
Be provided for measuring the temperature sensor of the temperature of cold air-supply air-flow,
When the temperature of measuring cold air-supply air-flow reaches desired minimum of a value and stops this compressor in time delay behind the T,
When the temperature of measuring cold air-supply air-flow reaches desired max-thresholds and starts compressor,
Measure the load on air-conditioning or the refrigeration system, and
Based on new T time delay of load calculation.
12. the method according to claim 11 is characterized in that, the minimum of a value of desired cold air-supply gas flow temperature is minimum steady state temperature.
13. the method according to claim 11 is characterized in that, the maximum of desired cold air-supply gas flow temperature is lower than desired indoor temperature.
14. the method according to claim 10 or 11 is characterized in that, the load of measuring in this system comprises the excess of measuring the temperature that exceeds threshold value.
15. the method according to claim 13 is characterized in that, calculate new T time delay based on excess and comprise, if excess increases T time delay when surpassing desired out of range value, and if excess reduce T time delay during less than desired out of range value.
16. the method according to claim 10 or 11 is characterized in that, the load of measuring in this system comprises the measurement rate of temperature change.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK09105077.6A HK1137899A2 (en) | 2009-06-05 | 2009-06-05 | Energy saver device, air-conditioning or refrigeration system and method for control of an air-conditioning or refrigeration system |
| HK09105077.6 | 2009-06-05 | ||
| PCT/IB2010/001354 WO2010140056A1 (en) | 2009-06-05 | 2010-06-04 | Energy saving device and method for cooling and heating apparatus |
Publications (1)
| Publication Number | Publication Date |
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| CN102762937A true CN102762937A (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800346137A Pending CN102762937A (en) | 2009-06-05 | 2010-06-04 | Energy saving device and method for cooling and heating equipment |
Country Status (12)
| Country | Link |
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| US (1) | US20120117995A1 (en) |
| EP (1) | EP2438369A4 (en) |
| CN (1) | CN102762937A (en) |
| AP (1) | AP2012006055A0 (en) |
| AU (1) | AU2010255465A1 (en) |
| CO (1) | CO6480998A2 (en) |
| EA (1) | EA201270007A1 (en) |
| HK (1) | HK1137899A2 (en) |
| SG (1) | SG177510A1 (en) |
| TW (1) | TW201104181A (en) |
| WO (1) | WO2010140056A1 (en) |
| ZA (1) | ZA201200097B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107427137A (en) * | 2015-03-20 | 2017-12-01 | 百事可乐公司 | Cooling system and method |
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| CN103629762B (en) * | 2012-08-20 | 2018-11-06 | 快捷8咨询有限公司 | A method of the system based on refrigerant and a kind of raising system effectiveness |
| US10174977B2 (en) * | 2012-11-21 | 2019-01-08 | Vertiv Corporation | Apparatus and method for subcooling control based on superheat setpoint control |
| US10145589B2 (en) * | 2013-03-15 | 2018-12-04 | Whirlpool Corporation | Net heat load compensation control method and appliance for temperature stability |
| CA2958388A1 (en) | 2016-04-27 | 2017-10-27 | Rolls-Royce Corporation | Supercritical transient storage of refrigerant |
| JP6776858B2 (en) * | 2016-12-09 | 2020-10-28 | 富士通株式会社 | Air conditioning control programs, equipment, and methods |
| US11199336B2 (en) * | 2019-07-26 | 2021-12-14 | Johnson Controls Tyco IP Holdings LLP | HVAC system with on-off control |
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- 2010-06-04 CN CN2010800346137A patent/CN102762937A/en active Pending
- 2010-06-04 AU AU2010255465A patent/AU2010255465A1/en not_active Abandoned
- 2010-06-04 US US13/376,363 patent/US20120117995A1/en not_active Abandoned
- 2010-06-04 AP AP2012006055A patent/AP2012006055A0/en unknown
- 2010-06-04 SG SG2012000592A patent/SG177510A1/en unknown
- 2010-06-04 EP EP10783044.0A patent/EP2438369A4/en not_active Withdrawn
- 2010-06-04 EA EA201270007A patent/EA201270007A1/en unknown
- 2010-06-07 TW TW099118356A patent/TW201104181A/en unknown
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Also Published As
| Publication number | Publication date |
|---|---|
| CO6480998A2 (en) | 2012-07-16 |
| US20120117995A1 (en) | 2012-05-17 |
| TW201104181A (en) | 2011-02-01 |
| EP2438369A4 (en) | 2014-02-26 |
| WO2010140056A1 (en) | 2010-12-09 |
| HK1137899A2 (en) | 2010-08-06 |
| EA201270007A1 (en) | 2012-07-30 |
| ZA201200097B (en) | 2012-09-26 |
| EP2438369A1 (en) | 2012-04-11 |
| SG177510A1 (en) | 2012-02-28 |
| AP2012006055A0 (en) | 2012-02-29 |
| AU2010255465A1 (en) | 2012-02-02 |
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Application publication date: 20121031 |