CN103307710B - Starting of air conditioner method - Google Patents
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- CN103307710B CN103307710B CN201310226136.XA CN201310226136A CN103307710B CN 103307710 B CN103307710 B CN 103307710B CN 201310226136 A CN201310226136 A CN 201310226136A CN 103307710 B CN103307710 B CN 103307710B
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Abstract
A kind of starting of air conditioner method provided by the invention, main engine power, system water capacity is preset in switch board, and refrigeration and start-up temperature when heating, in the water pipe that switch board is collected by temperature sensor, each water outlet and return water temperature and indoor, outdoor environment temperature and parameter preset compare, determine whether to need to start air-conditioning, and can environmentally temperature, adjustment water outlet and return water temperature, to reduce the start-stop ratio of main frame, improve engine efficiency, both energy-conservationly turn improve the intellectuality and precision and sensitivity that start and control.
Description
Technical field
The present invention relates to gas air-conditioning technical, particularly relate to a kind of air conditioning control method.
Background technology
Along with social development, greatly to office building, little of inhabitation offices such as home dwellings, central air-conditioning application is very general.At present, central air conditioner system mainly contains following two types, below illustrates existing two kinds of main central air conditioner systems.
First kind central air conditioner system: air-cooled (water-cooled, Di Yuan) group central, for air-cooled, industry is commonly called as water system central air-conditioning.
As shown in Figure 1, the hot water with energy that main frame 11 produces or chilled water, the power produced by water pump 13 is transported to room conditioning case 14 by water pipe 12 and fan coil 15 carries out neither endothermic nor exothermic, thus reach by the energy that hot water or chilled water contain the object that heats or freeze.The pluses and minuses of water system central air-conditioning:
1.1: due to when main frame evaporation and cooling system dispatch from the factory integral installation prepare, the efficiency of runtime host can ensure, and can not change the efficiency of main frame itself because the length of pipeline changes.
1.2: cost is relatively low.
1.3: loine pressure is low, longer than high-pressure system relative to the life-span.
The defect of conventional central air-conditioning:
2.1: water pump frequently runs surely, can not carry out regulating according to payload, consume energy very much when underrun especially.
2.2: main frame carries out out according to water temperature, shut down and regulate, often there is frequent start-stop phenomenon when load variations, consume energy very much.
2.3: main frame, according to water temperature start and stop, there will be and loads excessively or unload excessively.
The intelligence degree of above-mentioned water central air conditioner system is lower, cannot meet the demand of people to intelligent electrical apparatus.
Equations of The Second Kind central air conditioner system: VRV system, industry is commonly called as fluorine system.
As shown in Figure 2, the refrigerant fluorine that off-premises station 21 produces with energy is delivered to indoor set 24 by refrigerant copper pipe 22, and indoor set 24 is controlled by controller 23, and refrigerant fluorine is recycled by refrigerant copper pipe, regulates indoor temperature.
The advantage of VRV central air conditioner system:
3.1: main frame can carry out converting operation according to indoor set operation conditions, relatively energy-conservation.
3.2: install more convenient.
3.3: system band control system own, add charging, management etc. and control conveniently.
The shortcoming of VRV central air conditioner system:
4.1: systematic energy efficiency ratio converts along with the conversion of actual pipeline, when actual installation is run, factory's Energy Efficiency Ratio only can provide reference.
4.2: refrigerant rushes fluence greatly, and pressure is high, and pipeline easily leaks fluorine, and bothers very much for leak source inspection.
4.3: relatively fixed machine frequently, plasticator easily damages, and accessory cost is high.
4.4: each system at present most producer peak power only has 48 (refrigerating capacity is about about 130kw), needs several system for large area occasions such as office blocks.
4.5: because pipeline is long, during system cloud gray model start to walk power about about 10%, if when opening 1.5 systems, actual motion power according to system size is different with the length of pipeline may at about 5.
4.6: refrigerant itself is nonpoisonous and tasteless, but there will be when space solubility reaches 0.3kg/m2 the event of being poisoned to death, therefore, just can produce security incident once reveal, for preventing revealing, pipeline requirement of strength is very high, and therefore, cost is also just relatively high.
4.7:VRV system, in order to ensure plasticator oil return, regularly must carry out oil return action, and namely positive opening expansion valve in part of generating units cut out situation, can produce unnecessary waste.
Water system central air-conditioning as shown in Figure 1 above, belongs to fixed frequency air conditioner, and fluorine CS central air-conditioning as shown in Figure 2 above, belongs to convertible frequency air-conditioner.More above-mentioned two kinds of air-conditionings, when oepration at full load, when the energy that namely main frame produces equals the energy of load needs, in Energy Efficiency Ratio, fixed frequency air conditioner efficiency is greater than convertible frequency air-conditioner; When underrun, when the energy that namely main frame produces is greater than the energy of load needs, in Energy Efficiency Ratio, fixed engine efficiency is frequently less than or equal to frequency changer efficiency.
Above-mentioned two kinds of central air-conditioning, the energy produced when underrun all can not store, and causes unnecessary waste.
But above two kinds of systems all have respective pluses and minuses, can not be completely alternative in the above-mentioned two kinds of systems of various occasion.But above two kinds of systems respectively have unsurmountable shortcoming, and overall operation efficiency is lower, all can produce unnecessary energy waste, although two kinds of systems all have corresponding control system, involve great expense, install trouble, debugging is complicated.Therefore, be necessary to develop a kind of installation and debugging easy, cost is lower, energy-conservation and have the air-conditioning system of intelligence control system.
As shown in Figure 3; the schematic diagram of prior art central air conditioner system when heating; to set return water temperature 40 DEG C; because specific heat of water is large; when heating, water temperature is lower; when temperature is lower than 40 DEG C; time such as below 38 DEG C, main frame progressively starts, until water temperature continues to load before arriving 40 DEG C; when appearing at underload, main frame all starts; when water temperature is higher than 40 DEG C, such as, when arriving 42 DEG C, main frame is progressively shut down and is unloaded; there will be excess temperature higher than crossing loading phenomenon when 42 DEG C, insensitive thus cause the waste of energy owing to controlling inaccuracy.
As shown in Figure 4; schematic diagram when being prior art central air conditioner system refrigeration; to set return water temperature 12 DEG C; during refrigeration, water temperature is higher; temperature higher than 12 DEG C even higher than 14 DEG C; when higher than 14 DEG C; main frame progressively starts; until continue when water temperature reaches 12 DEG C to load, when appearing at underload, main frame all starts, when water temperature is lower than 12 DEG C; such as, when reaching 10 DEG C; main frame is progressively shut down and is unloaded, and there will be temperature lower than crossing loading phenomenon when 10 DEG C, insensitive thus cause the waste of energy owing to controlling inaccuracy.
When prior art air-conditioner host heats with cooling activation, because the temperature to whole air-conditioning system, pressure monitor are not in place, and the startup of air-conditioning accurately can not be controlled according to the change of surrounding environment, thus cause the waste of energy, therefore, be necessary to provide a kind of can accurate sensitive startup and energy-conservation central air-conditioning starting method.
Summary of the invention
For current central air conditioner system or not there is intellectuality, or intelligence degree is higher but the problem of involve great expense, install trouble, debugging complexity, and it is not in place to the temperature of whole air-conditioning system, pressure monitor, and the startup of air-conditioning accurately can not be controlled according to the change of surrounding environment, thus cause the situation of the waste of energy, the invention provides a kind of can accurate sensitive startup and energy-conservation central air-conditioning starting method.
A kind of starting of air conditioner method, presets main engine power, system water capacity in the switch board of air-conditioning system, and refrigeration and start-up temperature when heating, and comprising:
Step S1: preset the water outlet fixed and a return water temperature in switch board;
Step S2: gather leaving water temperature and return water temperature with certain frequency;
Step S3: the temperature difference calculating the temperature collected;
Step S4: by the temperature difference of the temperature difference of acquisition with the fixing water outlet preset and return water temperature being compared, judge that air-conditioning is the need of startup;
Step S5: when judging that air-conditioning needs to start, then start air-conditioning; Judge not need then to continue step S2 when starting air-conditioning.
A kind of starting of air conditioner method provided by the invention, main engine power, system water capacity is preset in switch board, and refrigeration and start-up temperature when heating, in the water pipe that switch board is collected by temperature sensor, each water outlet and return water temperature and indoor, outdoor environment temperature and parameter preset compare, determine whether to need to start air-conditioner host or energy-accumulating water tank, and can environmentally temperature, adjustment water outlet and return water temperature, to reduce the start-stop ratio of main frame, improve engine efficiency, both energy-conservationly turn improve the intellectuality and precision and sensitivity that start and control.
Accompanying drawing explanation
Fig. 1 is prior art water system central air-conditioning schematic diagram.
Fig. 2 is prior art fluorine CS central air-conditioning schematic diagram.
Fig. 3 is prior art central air conditioner system unit starting pinciple figure when heating.
Unit starting pinciple figure when Fig. 4 is prior art central air conditioner system refrigeration.
Fig. 5 is the central air conditioner system structural representation that starting of air conditioner method of the present invention relates to.
Fig. 6 is the central air conditioner system host computer side structural representation that starting of air conditioner method of the present invention relates to.
Fig. 7 be the central air conditioner system that relates to of starting of air conditioner method of the present invention only host work time module side schematic diagram.
Fig. 8 be starting of air conditioner method of the present invention relate to the accumulation of energy of central air conditioner system energy storage water tank time module side schematic diagram.
Fig. 9 be starting of air conditioner method of the present invention relate to the energy supply of central air conditioner system energy storage water tank time module side schematic diagram.
Figure 10 is central air-conditioner control method flow chart of the present invention.
Detailed description of the invention
With reference to the accompanying drawings embodiments of the invention are described.The element described in an accompanying drawing of the present invention or a kind of embodiment and feature can combine with the element shown in one or more other accompanying drawings or embodiment and feature.It should be noted that to know object, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.
In order to air conditioning control method of the present invention is better described, first the operation of whole air-conditioning system is described below.
As shown in Figure 5, Figure 6, a kind of air-conditioner control system, comprises first class control system, second control system, indoor set 51,52 and switch board 99, connects main frame 31,32, the outlet pipe 91 of energy-accumulating water tank 81,82 and indoor set 51,52 and return pipe 92, wherein:
First class control system comprises main frame 31,32, motor-driven valve 35,36, and one-level variable frequency pump 41, and motor-driven valve 35 is arranged on return pipe 92 on the position of main frame 31, and motor-driven valve 36 is arranged on the position of close main frame 32 on return pipe 92; Another kind of embodiment, motor-driven valve 35,36 can be arranged on the position of close main frame 31,32 on outlet pipe 91;
Second control system comprises and being connected with outlet pipe 91 and return pipe 92 respectively and the energy-accumulating water tank 81,82 be cascaded, and secondary variable frequency pump 42; Preferably, energy-accumulating water tank 81,82 of the present invention is V-type spout energy-accumulating water tank, and is labyrinth type energy-accumulating water tank.Certainly, energy-accumulating water tank 81,82 also can to redesign according to system situation.
Main frame 31,32 water outlet is provided with pressure sensor 64 and temperature sensor 72, near main frame 31,32 water return outlet, is provided with pressure sensor 63 and temperature sensor 71;
Indoor set 51,52 water inlet is provided with pressure sensor 61 and temperature sensor 73, indoor set 51,52 water outlet is provided with pressure sensor 62 and temperature sensor 74;
Energy-accumulating water tank 81 water outlet is provided with temperature sensor 75, energy-accumulating water tank 81 water inlet is provided with temperature sensor 76;
Pressure sensor 61,62,63,64, pressure, temperature and water amount parameters in temperature sensor 71,72,73,74,75,76 and outlet pipe 91 and return pipe 92 can be sent in switch board 99, so that switch board 99 carries out intelligentized control method to whole central air conditioner system.
When main frame 31,32 runs, require specified discharge, in this discharge situation, the pressure differential of pressure sensor 63 and pressure sensor 64 is fixed all the time, and one-level variable frequency pump 41 is selected according to the flow of main frame 31,32 and lift.
When opening main frame 31, motor-driven valve 35 is opened, and one-level variable frequency pump 41 runs according to the pressure differential of pressure sensor 63 and pressure sensor 64.Now, the temperature difference of collecting temperature sensor 71 and temperature sensor 72 is poor with the leaving water temperature adjusting main frame 31, generally, the water outlet of main frame 31 and return water temperature difference are 5 DEG C, the running frequency of adjustment one-level variable frequency pump 41, make main frame 31 operate in efficient district all the time, the power consumption of one-level variable frequency pump 41 can be reduced.
When the power of main frame 31 does not reach the power requirement of indoor set 51,52, open main frame 32, now, motor-driven valve 36 is opened simultaneously, and one-level variable frequency pump 41 elevated frequencies is to meet the discharge of two unit needs.Now, the temperature difference of collecting temperature sensor 71 and temperature sensor 72 is poor with the leaving water temperature adjusting main frame 31,32, generally, the water outlet of main frame 31,32 and return water temperature difference are 5 DEG C, the operational efficiency of adjustment one-level variable frequency pump 41, make main frame 31,32 operate in high school district all the time, the power consumption of one-level variable frequency pump 41 can be reduced.
In actual pump type selecting, except water outlet and pressure of return water difference, pipe resistance is difficult to determine, one-level variable frequency pump 41 presses 120% type selecting of rated output substantially, so just cause the waste of pump power, when main frame 31,32 part is run, waste is very serious especially, and the change of resistance may be caused in main frame 31,32 running, pressure sensor 43,44 is set, can change by automatic pressure acquisition, so that one-level variable frequency pump 41 adjusts adaptation automatically, and can automatic discrimination stopping state.
Switch board 99 is according to the water outlet collected from temperature sensor 73,74 and return water temperature calculating temperature difference, calculate in the image data feeding systems such as the calculation of pressure pressure differential collected from pressure sensor 61,62 and environment temperature, result of calculation is sent to frequency converter by 0V-10V voltage and carries out regulating frequency, thus regulate the transmission power of secondary variable frequency pump 42; When load is large, increases secondary variable frequency pump 42 power, when load reduces, reduce the power of secondary variable frequency pump 42, but ensure indoor set 51,52 temperature difference while reducing power, improve running efficiency of system.Simultaneously for the system of pipeline complexity, increase a loop temperature collection, to collect the parameter such as water temperature difference, pressure differential and environment temperature more exactly, and carry out accurate Calculation, the power of accurate adjustment secondary variable frequency pump 42, so that whole system self-adapting operation.
As above-mentioned, switch board 99 calculates according to parameters such as the temperature computation temperature difference, pressure and the environment temperatures that collect, carry out two-stage frequency conversion control by one-level variable frequency pump 41 and secondary variable frequency pump 42, make control precision and the intellectuality more of whole central air conditioner system.
As shown in Figure 7 and composition graphs 5, main frame 31,32 normally runs, and just in time meets indoor set 51,52 when running, current in water pipe flow out from outlet pipe 91, in Fig. 5, be with direction shown in arrow dotted line to run, and carry out backwater by return pipe 92, Power supply is carried out to indoor set.
As shown in Figure 8 and composition graphs 5, when the minimum operate power of main frame 31,32 is greater than load consumed power, that is: switch board 99 collects the pressure parameter of pressure sensor 61,62,63,64, the temperature difference of temperature sensor 71,72,73,74 is also carried out calculating the minimum operate power of main frame 31,32 and is greater than load consumed power, now, main frame 31,32 water yield is greater than indoor set 51,52 amount of water required, the unnecessary water yield of main frame 31,32 is except supply secondary variable frequency pump 42, and the energy-accumulating water tank 81,82 entering series connection carries out energy storage; Now, water (flow) direction is as shown in Fig. 6 band arrow dotted line, and a part of water yield enters indoor set 51,52 direction, and the unnecessary water yield, along entering in energy-accumulating water tank 81,82 towards energy-accumulating water tank 81,82 direction, stores energy in energy-accumulating water tank 81,82.Now, main frame 31, the 32 output water yield equals indoor set 51,52 water requirements and energy-accumulating water tank 81,82 water requirement sums.
As shown in Figure 9 and composition graphs 5, the indoor set 51 that switch board 99 gathers, the leaving water temperature of the temperature sensor 74 near 52 delivery ports and the energy storage water tank temperature of temperature sensor 76 calculating temperature difference, the energy storage water tank temperature detected when temperature sensor 76 and indoor set 51, the temperature difference of the leaving water temperature of the temperature sensor 74 of 52 at least reaches aforementioned main frame 31, 32 water outlets and backwater temperature difference 5 DEG C, now, main frame 31, 32 shut down, main frame 31 during shutdown, the output of 32 is zero, frozen water or hot water are by energy-accumulating water tank 81, 82 provide, energy-accumulating water tank 81, water in 82 along Fig. 7 band arrow dotted line direction to indoor set 51, 52 for confluent, when the energy shortage in energy-accumulating water tank 82,82 is to supply indoor set 51,52, namely also accounting temperature is poor in switch board 99 collection, when indoor set 51,52 leaving water temperature that temperature sensor 74 detects and temperature sensor 76 detect energy-accumulating water tank 81,82 temperature difference reach or be less than backwater temperature difference time, then again progressively start main frame 31,32 and supply energy, so, central air conditioner system moves in circles operation, greatly reduce the on-off frequency of main frame 31,32, improve efficiency, simultaneously, save energy consumption, reach environment protecting.Simultaneously; when main frame 31,32 is shut down; one-level variable frequency pump 41 also quits work; only secondary variable frequency pump 42 runs, and to indoor set 51,52 for confluent, decreases the service time of one-level variable frequency pump 41; improve the life-span of one-level variable frequency pump 41; further increase the security of system, decrease maintenance frequency, save maintenance cost.
Above embodiment is described central air conditioning system of the present invention and method with the citing of 2 main frames, 31,32 and 2 indoor sets 51,52, the main frame of more than 3 and 3 and the operation logic of indoor set similar to the above embodiments.
Owing to controlling inaccuracy and insensitive thus cause the problem of energy waste when heating for prior art central air conditioner system and freeze, the invention provides a kind of Δ T temperature difference and start method, to solve this un-reasonable phenomenon.
According to formula Q=CM △ T:
In formula, each parameter is as follows: the heat Kcal that Q=unit produces; C=water specific heat 1kcal/kg.; M=system water capacity, the △ T=temperature difference.
In a known system, such as, central air conditioner system shown in Fig. 5, system water capacity is changeless.The heat that main frame 31,32 produces directly can affect water temperature, and the transformation rate DEG C/m according to water temperature can judge whether to carry out loading or off-load.
Above-mentioned formula can be transformed into △ T=(unit refrigerating capacity Q-indoor set power Q)/4.19*1000KG; Central air conditioner system can gather water outlet and return water temperature by switch board 99 and judge that system is the need of restarting and loading, to reach more accurately sensitive startup according to the variations in temperature in even shorter time per minute.
As shown in Figures 5 to 9, such as: the power of 2 main frames 31,32 is respectively 100kw, and system water capacity is 1000KG, presetting temperature difference △ T, such as, is 5 DEG C, and above parameter shifts to an earlier date in input control cabinet 99 internal memory and stores.Switch board 99 is first by temperature sensor 71,72 temperature on even higher frequency collection outlet pipe 92 per minute and oral siphon 91 and calculating temperature difference, when the temperature difference reaches the default temperature difference, then successively start main frame 31 and main frame 32 loaded energy, because main frame 31,32 loads, the temperature difference can progressively reduce, and then progressively shuts down main frame 31,32 when the temperature difference is less than the default temperature difference; When the temperature difference is less than the default temperature difference, there will be the situation that unit refrigerating capacity Q is greater than indoor set power Q, now, excess energy is progressively stored in energy-accumulating water tank 81,82.Switch board 99 is with above-mentioned same frequency collection temperature sensor 71, 72, 73, 74, 75, the temperature of 76, by temperature sensor 73, the 74 temperature computation temperature difference calculating temperature differences collected, the then indoor set 51 when the temperature difference is greater than the default temperature difference again, 52 need to supply energy further, now, according to from temperature sensor 72, 75 collect the water inlet of energy-accumulating water tank and leaving water temperature calculates the temperature difference, if when this temperature difference is less than the default temperature difference, then energy-accumulating water tank 81 is described, unnecessary energy is had in 82, now switch board 99 controls to start energy-accumulating water tank 81, 82 pairs of indoor sets 51, 52 carry out supply energy, then close energy-accumulating water tank 81,82 when the temperature difference of temperature sensor 72,75 reaches the default temperature difference and progressively start main frame 31,32 simultaneously, circular flow like this, can reach the control accurately sensitive to whole central air conditioner system.According to the temperature acquisition frequency in switch board 99, whole system is controlled; better solve excessive loads thus cause energy waste; simultaneously; the energy that energy-accumulating water tank 81,82 of the present invention stores supplements main frame 31,32; avoid the frequent starting of main frame 31,32, while energy-conservation energy, reduce the startup of main frame 31,32 and shut down frequency; thus improve the security of whole system, reduce maintenance frequency.Below also can find out, by the collection of multiple temperature acquisition point, improve the intellectuality of Systematical control.Meanwhile, according to system change such as the increases of indoor set 51,52, the quantity of temperature sensor can be increased, to start control more accurately to system.
In addition, main frame 31,32 itself can carry out the loading velocity of 50%-100% or lower, such as 25%-50%-75%-100%, most system is operated in efficient district when 60%-80%, such as, when main frame 31 runs 100% power, an other main frame 32 starts, such 2 main frames operate in the efficient district of 50%, can greatly reduce energy resource consumption.
Water outlet 45 DEG C when general central air conditioner system heats, 40 DEG C, backwater; Leaving water temperature 7 DEG C during refrigeration, 12 DEG C, backwater.Switch board 99 of the present invention can receive the temperature of system regional by detecting real-time, according to outdoor temperature and indoor operating mode, improves and start water temperature during refrigeration, and reduces when heating and start water temperature, often improves 1 degree or reduce by 1 degree, main frame 31,32 efficiency raising 3%-5%; Such as, when heating, according to outdoor temperature, indoor operating mode, leaving water temperature is lower than 45 degree, the energy such as, produced when setting leaving water temperature is 44 DEG C-43 DEG C-42 DEG C is enough to the power reaching supply indoor set 51,52, then setting leaving water temperature is 44 DEG C-43 DEG C-42 DEG C, so, then can improve the operational efficiency of main frame 31,32.Then improve startup water temperature during refrigeration, principle is the same.
Traditional unit startup-shutdown design temperature is positive and negative 2 DEG C, and such as, when heating setting return water temperature 40 degree, temperature starts lower than when 38 degree, shuts down when being greater than 42 degree.
Central air conditioner system switch board 99 of the present invention can according to the environment temperature gathered and load condition, to rest temperature auto modification, when the outdoor temperature collected and the indoor temperature temperature difference larger time, the power that explanation will reach indoor set 51,52 needs more energy, then 38 DEG C of rest temperatures are adjusted to 37 degree DEG C lower by system auto modification automatically, the start-stop ratio of such minimizing main frame 31,32, energy-conservation further.
In above-mentioned starting method, no matter be that main frame 31,32 starts supply energy or energy-accumulating water tank 81,82 supply energy is all applicable.
By above in conjunction with the explanation of central air conditioner system to starting method of the present invention, starting of air conditioner method of the present invention can also can be described below as follows.
As shown in Figure 10, first: in switch board, preset main engine power, system water capacity, and refrigeration and start-up temperature when heating, starting method comprises the steps:
Step S1: preset the water outlet fixed and a return water temperature in switch board;
Step S2: gather leaving water temperature and return water temperature with certain frequency;
Step S3: the temperature difference calculating the temperature collected;
Step S4: by the temperature difference of the temperature difference of acquisition with the water outlet preset and return water temperature being compared, judge that air-conditioning is the need of startup;
Step S5: when judging that air-conditioning needs to start, then start air-conditioning; Judge not need then to continue step S2 when starting air-conditioning.
In addition, step S2 can also comprise:
Step S21: switch board gathers outdoor temperature and indoor temperature simultaneously, and carry out calculating to revise preset data.
The outdoor temperature that can collect according to switch board and indoor temperature, by step S22 reduce heat time leaving water temperature or by step S23 improve refrigeration time improve leaving water temperature.
The outdoor temperature that also can collect according to switch board and indoor temperature, by step S24 reduce heat time return water temperature or by step S25 improve refrigeration time improve return water temperature.
Add energy-accumulating water tank in central air conditioner system after, starting of air conditioner method of the present invention stands good, and starting method comprises the steps:
Step S26: switch board gathers water outlet and the return water temperature of energy-accumulating water tank.
Step S27 switch board is by calculating the temperature difference of the temperature collected;
Step S28: switch board is compared with the water outlet preset and return water temperature by the temperature difference per minute obtained, and judges that energy-accumulating water tank is the need of startup.
Step S29: need to start energy-accumulating water tank if judge, then start energy-accumulating water tank.
Step S30: when judging that energy-accumulating water tank needs to start, then start energy-accumulating water tank; Judge not need then to continue step S27 when starting energy-accumulating water tank.
Identical with when there is no an energy-accumulating water tank, when being provided with energy-accumulating water tank in system, gather outdoor temperature and indoor temperature by step S32 switch board simultaneously, and carry out calculating to revise preset data, reduced by step S33 and heat leaving water temperature or improve refrigeration leaving water temperature, also can be reduced heating return water temperature or improving refrigeration return water temperature by step S34.
Although described the present invention and advantage thereof in detail, be to be understood that and can have carried out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and conversion.And the scope of the application is not limited only to the specific embodiment of process, equipment, means, method and step described by description.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (5)
1. a starting of air conditioner method, presets main engine power, system water capacity in the switch board of air-conditioning system, and refrigeration and start-up temperature when heating, and it is characterized in that, starting of air conditioner method comprises:
Step S1: water outlet and the return water temperature of presetting the main frame that fixes in switch board;
Step S2: gather the leaving water temperature of main frame and the return water temperature of main frame with certain frequency;
Step S3: calculate the temperature between leaving water temperature and the return water temperature collected collected
Difference;
Step S4: by the leaving water temperature of the temperature difference that will obtain and the fixing main frame preset with preset
Fixing main frame return water temperature between the temperature difference compare, judge that air-conditioning is the need of startup;
Step S5: when judging that air-conditioning needs to start, then start air-conditioning; Judge not need then to continue step S2 when starting air-conditioning;
Described step S2 also comprises:
Step S21: switch board gathers outdoor temperature and indoor temperature simultaneously, and start-up temperature when carrying out calculating revising the water outlet and return water temperature and refrigeration that preset and heat;
Step S21 also comprises:
Step S26: the water outlet of capture setting energy-accumulating water tank within air-conditioning systems and return water temperature;
Step S27: the leaving water temperature calculating the energy-accumulating water tank collected and the temperature difference of the return water temperature of energy-accumulating water tank collected;
Step S28: compared by the temperature difference of the leaving water temperature of the temperature difference obtained and the energy-accumulating water tank preset and the return water temperature of default energy-accumulating water tank, judge that energy-accumulating water tank is the need of startup;
Step S29: when judging that energy-accumulating water tank needs to start, then start energy-accumulating water tank; Judge not need then to continue step S27 when starting energy-accumulating water tank;
When calculating the water inlet of energy-accumulating water tank and the temperature difference of leaving water temperature is less than the default temperature difference of energy-accumulating water tank, now switch board control starts energy-accumulating water tank and carries out supply energy to indoor set; Then close energy-accumulating water tank when the water inlet of energy-accumulating water tank and the temperature difference of water outlet reach the default temperature difference of energy-accumulating water tank, progressively start main frame simultaneously.
2. starting of air conditioner method according to claim 1, is characterized in that, described step S21 also comprises:
Step S22: reduce leaving water temperature when heating.
3. starting of air conditioner method according to claim 1, is characterized in that, described step S21 also comprises:
Step S23: improve leaving water temperature when freezing.
4. starting of air conditioner method according to claim 1, is characterized in that, described step S21 also comprises:
Step S24: reduce return water temperature when heating.
5. starting of air conditioner method according to claim 1, is characterized in that, described step S21 also comprises:
Step S25: improve return water temperature when freezing.
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| CN108195037A (en) * | 2017-11-29 | 2018-06-22 | 浙江盾安自控科技有限公司 | A kind of multi-functional medical warehouse constant temperature and humidity coordinates energy-saving control system and method |
| CN108800423A (en) * | 2018-05-25 | 2018-11-13 | 珠海格力电器股份有限公司 | Air conditioner control method and device and air conditioner adopting method |
| CN108800488B (en) * | 2018-06-01 | 2020-11-27 | 青岛海尔空调电子有限公司 | Water system air conditioner control method |
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