CN203286717U - Air conditioner control system - Google Patents
Air conditioner control system Download PDFInfo
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- CN203286717U CN203286717U CN2013203283291U CN201320328329U CN203286717U CN 203286717 U CN203286717 U CN 203286717U CN 2013203283291 U CN2013203283291 U CN 2013203283291U CN 201320328329 U CN201320328329 U CN 201320328329U CN 203286717 U CN203286717 U CN 203286717U
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Abstract
The utility model provides an air conditioner control system. The air conditioner control system comprises a first-level control system body, a second-level control system body, an indoor machine, a control cabinet and water pipes, wherein the water pipes are connected with the firs-level control system body, the second-level control system body and the indoor machine. The control cabinet is electrically connected to the first-level control system body, the second-level control system body and the indoor machine. The first-level control system body comprises a host machine. The water pipes comprise the water outlet pipe and the water return pipe. The first-level control system further comprises a first-level variable frequency water pump which is arranged near the position of the host machine. The second-level control system body comprises energy storage water tanks which are connected with one end of the water outlet pipe and one end of the water return pipe respectively, and a second-level variable frequency water pump which is arranged near the energy storage water tanks. The air conditioner control system saves energy, and improves intelligentization, precision and sensitivity of control.
Description
Technical field
The utility model relates to the gas air-conditioning technical, relates in particular to a kind of air-conditioner control system.
Background technology
Along with social development, greatly to office building, little of inhabitation offices such as family's houses, the 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, take air-cooled as example, industry is commonly called as the water system central air-conditioning.
As shown in Figure 1, the hot water with energy or chilled water that main frame 11 produces, the power that is 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, thereby by the energy that hot water or chilled water contain, reach and heat or the purpose of freezing.
The pluses and minuses of water system central air-conditioning:
1.1: while due to main frame evaporation and cooling system, dispatching from the factory integral installation prepare, the efficiency of runtime host can guarantee, and can not change due to the length variation of pipeline the efficiency of main frame itself.
1.2: cost is relatively low.
1.3: loine pressure is low, and is longer than high-pressure system with respect to the life-span.
The defect of conventional central air-conditioning:
2.1: water pump is operation frequently surely, can not regulate according to payload, consume energy very much when underrun especially.
2.2: main frame leaves, shuts down and regulate according to water temperature, often occurs the frequent start-stop phenomenon when load variations, very power consumption.
2.3: main frame, according to the water temperature start and stop, there will be and loads excessively or unload excessively.
The intelligent degree of above-mentioned water central air conditioner system is lower, can't meet the demand of people to intelligent electrical apparatus.
The Equations of The Second Kind central air conditioner system: VRV system, industry are commonly called as the 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 the refrigerant fluorine recycles by the refrigerant copper pipe, and indoor temperature is regulated.
The advantage of VRV central air conditioner system:
3.1: main frame can carry out converting operation according to the indoor set operation conditions, and is relatively energy-conservation.
3.2: install more convenient.
3.3: system band control system own, append charging, management etc. and control conveniently.
The shortcoming of VRV central air conditioner system:
4.1: systematic energy efficiency ratio is conversion along with the conversion of actual pipeline, and during the actual installation operation, factory's Energy Efficiency Ratio only can provide reference.
4.2: refrigerant rushes that fluence is large, and pressure is high, and pipeline easily leaks fluorine, and inspection bothers very much for leak source.
4.3: relatively fixed machine frequently, plasticator easily damages, and the accessory cost is high.
4.4: the at present most producer of each system peak power only has 48 (refrigerating capacity is the 130kw left and right approximately), for large tracts of land occasions such as office blocks, needs several system.
4.5: because pipeline is long, system when operation starting power is 10% left and right approximately, if while opening 1.5 systems, actual motion power is different according to the length of system size and pipeline may be 5 left and right.
4.6: refrigerant itself is nonpoisonous and tasteless, but there will be the event of being poisoned to death when space solubility reaches 0.3kg/m2, therefore, in case reveal, just can produce security incident, and for preventing revealing, the pipeline requirement of strength is very high, and therefore, cost is also just relatively high.
4.7:VRV system, in order to guarantee the plasticator oil return, must regularly be carried out the oil return action, namely part of generating units is closed positive opening expansion valve in situation, can produce unnecessary waste.
Water system central air-conditioning as shown in Figure 1 above, belong to fixed frequency air conditioner, and fluorine system central air-conditioning as shown in Figure 2 above, belong to convertible frequency air-conditioner.More above-mentioned two kinds of air-conditionings, when oepration at full load, i.e. when the energy of main frame generation equaled to load the energy that needs, aspect Energy Efficiency Ratio, fixed frequency air conditioner efficiency was greater than convertible frequency air-conditioner; When underrun, namely the energy that produces of main frame need greater than load energy the time, aspect Energy Efficiency Ratio, fixed engine efficiency frequently is less than or equal to frequency changer efficiency.
Above-mentioned two kinds of central air-conditioning, the energy that produces when underrun all can not store, and has caused unnecessary waste.
Yet above two kinds of systems all have pluses and minuses separately, can not be fully alternative in the above-mentioned two kinds of systems of various occasions.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 complexity.Therefore, be necessary to develop a kind of installation and debugging easy, cost is lower, and is energy-conservation and have an air-conditioning system of intelligence control system.
As shown in Figure 3; the schematic diagram of prior art central air conditioner system while heating; to set 40 ℃ of return water temperatures as example; because specific heat of water is large; while heating, water temperature is lower; temperature is during lower than 40 ℃; for example below 38 ℃ the time, main frame progressively starts, until water temperature continues to load before arriving 40 ℃; while appearing at underload, main frame all starts; higher than 40 ℃, while for example arriving 42 ℃, main frame is progressively shut down and is unloaded when water temperature; loading phenomenon excessively while there will be excess temperature higher than 42 ℃, thereby owing to controlling the insensitive waste that causes energy of inaccuracy.
As shown in Figure 4; schematic diagram while being prior art central air conditioner system refrigeration; to set 12 ℃ of return water temperatures as example; during refrigeration, water temperature is higher; temperature higher than 12 ℃ even higher than 14 ℃; higher than 14 ℃ the time; main frame progressively starts; until water temperature continues while reaching 12 ℃ to load, while appearing at underload, main frame all starts, when water temperature lower than 12 ℃; while for example reaching 10 ℃; main frame is progressively shut down and is unloaded, the loading phenomenon excessively while there will be temperature lower than 10 ℃, thereby owing to controlling the insensitive waste that causes energy of inaccuracy.
Prior art heats and while freezing, considers the versatility of equipment due to factory, and complete machine is controlled in real system that to control inaccuracy insensitive and cause the waste of energy, therefore, is necessary to provide a kind of accurate sensitivity and energy-conservation central air conditioning system controlled.
The utility model content
For present central air conditioner system or do not have intellectuality, perhaps intelligent degree is higher but involve great expense, install trouble, the complicated problem of debugging, and the utility model provides the relatively low installation and debugging of a kind of cost easy, and intelligentized air-conditioner control system.
The energy storage that main frame can not be produced when the underload for present central air conditioner system, cause the problem of unnecessary waste, the utility model provides a kind of energy storage that main frame can be produced when the underrun, improves systematic energy efficiency ratio and energy-conservation air-conditioner control system.
A kind of air-conditioner control system, comprise first class control system, second control system, indoor set, switch board and the water pipe that connects above-mentioned first class control system, second control system and indoor set, above-mentioned switch board is electrically connected in first class control system, second control system and indoor set, above-mentioned first class control system comprises main frame, water pipe comprises outlet pipe and return pipe
First class control system also comprises the one-level variable frequency pump that is arranged near position of host machine;
Second control system comprises the energy-accumulating water tank that is connected with the return pipe two ends with outlet pipe, and is arranged on the secondary variable frequency pump near energy-accumulating water tank.
A kind of air-conditioner control system that the utility model provides, it comprises the running frequency of two stage control system and two-stage frequency conversion water pump, be provided with energy-accumulating water tank in system, the main frame, indoor set, energy-accumulating water tank temperature and pressure and the environment temperature that gather by switch board, control the running frequency of two-stage frequency conversion water pump by two stage control system, not only energy-conservation but also improved intellectuality and precision and the sensitivity controlled.
Description of drawings
Fig. 1 is prior art water system central air-conditioning schematic diagram.
Fig. 2 is prior art fluorine system central air-conditioning schematic diagram.
Fig. 3 is prior art central air conditioner system unit starting schematic diagram while heating.
Unit starting schematic diagram when Fig. 4 is prior art central air conditioner system refrigeration.
Fig. 5 is the utility model central air-conditioning structural representation.
Fig. 6 is the utility model central air conditioner system host computer side structural representation.
Fig. 7 is only module side schematic diagram during host work of the utility model central air conditioner system.
Module side schematic diagram when Fig. 8 is the accumulation of energy of the utility model central air conditioner system energy storage water tank.
Module side schematic diagram when Fig. 9 is the energy supply of the utility model central air conditioner system energy storage water tank.
The specific embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present utility model or a kind of embodiment and feature can combine with element and feature shown in one or more other accompanying drawings or embodiment.Should be noted that in order to know purpose, omitted, expression and description known to persons of ordinary skill in the art parts and processing irrelevant with the utility model in accompanying drawing and explanation.
The utility model provides a kind of air-conditioner control system, comprise first class control system, second control system, indoor set, switch board and the water pipe that connects above-mentioned first class control system, second control system and indoor set, above-mentioned switch board is electrically connected in first class control system, second control system and indoor set, above-mentioned first class control system comprises main frame, water pipe comprises outlet pipe and return pipe, it is characterized in that:
First class control system also comprises the one-level variable frequency pump that is arranged near position of host machine;
Second control system comprises the energy-accumulating water tank that is connected with the return pipe two ends with outlet pipe, and is arranged on the secondary variable frequency pump near energy-accumulating water tank.
Alternatively, the close position of host machine setting of outlet pipe and return pipe, and be respectively arranged with pressure sensor and temperature sensor on outlet pipe and return pipe, first class control system also comprises the motor-driven valve that arranges near position of host machine.
Alternatively, the two ends of energy-accumulating water tank are connected with return pipe with the outlet pipe of water pipe respectively, are provided with temperature sensor on energy-accumulating water tank and pipeline that return pipe is connected, also are provided with temperature sensor on energy-accumulating water tank.
Alternatively, the indoor set two ends are respectively equipped with temperature sensor, the temperature sensor that arranges on temperature sensor, the energy-accumulating water tank at switch board connection indoor set two ends and the pipeline that return pipe is connected, temperature sensor and the secondary variable frequency pump of energy-accumulating water tank setting.
Alternatively, the two ends of indoor set also are respectively equipped with pressure sensor, and switch board connects the pressure sensor at indoor set two ends.
Alternatively, energy-accumulating water tank is V-type spout energy-accumulating water tank.
As shown in Figure 5, Figure 6, this air-conditioner control system, comprise first class control system, second control system, indoor set 51 and are connected, switch board 99 and be arranged in this air-conditioner control system, connect the water pipe of above-mentioned first class control system, second control system and indoor set 51 and 52.Water pipe comprises outlet pipe 91 and return pipe 92.Switch board 99 is electrically connected in first class control system, second control system and indoor set 51 and 52, wherein,
First class control system comprises main frame 31,32, and motor-driven valve 35,36, and one-level variable frequency pump 41, motor-driven valve 35 are arranged on return pipe 92 near on the position of main frame 31, and motor-driven valve 36 is arranged on return pipe 92 near on the position of main frame 32; Another kind of embodiment, motor-driven valve 35,36 can be arranged on outlet pipe 91 near on main frame 31,32 position;
Second control system comprises is connected respectively the energy-accumulating water tank 81,82 that is connected and is cascaded and secondary variable frequency pump 42 with return pipe with outlet pipe 91; Preferably, the utility model energy-accumulating water tank 81,82 is V-type spout energy-accumulating water tank, and is the labyrinth type energy-accumulating water tank, and certainly, energy-accumulating water tank 81,82 also can be according to system size, the otherwise designed such as the minimum operate power of main frame.
Be provided with pressure sensor 64 and temperature sensor 72 at main frame 31,32 water outlets, be provided with pressure sensor 63 and temperature sensor 71 near main frame 31,32 water return outlets;
Be provided with pressure sensor 61 and temperature sensor 73 at indoor set 51,52 water inlet places, at indoor set 51,52 water outlets, be provided with pressure sensor 62 and temperature sensor 74;
Be provided with temperature sensor 75 at energy-accumulating water tank 81 water outlets, be provided with temperature sensor 76 on energy-accumulating water tank 81;
The force value of pressure sensor 61,62,63,64 inductions, temperature sensor 71,72,73,74,75,76 temperature values that detect and pressure, temperature and the water yield parameter in outlet pipe 91 and return pipe 92 can be sent in switch board 99, so that 99 pairs of whole central air conditioner systems of switch board are carried out intellectuality, control.
In main frame 31,32 whens operation,, require specified discharge, and in this discharge situation, the pressure differential of pressure sensor 63 and pressure sensor 64 is fixing all the time, and one-level variable frequency pump 41 is selected according to main frame 31,32 flow and lift.
When opening main frame 31, motor-driven valve 35 is opened, and one-level variable frequency pump 41 is according to the pressure differential operation of pressure sensor 63 and pressure sensor 64.At this moment, the temperature difference of collecting temperature sensor 71 and temperature sensor 72 is poor with water outlet, the return water temperature of adjusting main frame 31, generally, the water outlet of main frame 31 and return water temperature are poor is 5 ℃, adjust the running frequency of one-level variable frequency pump 41, make main frame 31 operate in all the time efficient district, can reduce the power consumption of one-level variable frequency pump 41.
When the power of main frame 31 does not reach indoor set 51,52 power requirement, open simultaneously main frame 32, at this moment, motor-driven valve 36 is opened, and one-level variable frequency pump 41 rising frequencies are to meet the discharge of two unit needs.At this moment, the temperature difference of collecting temperature sensor 71 and temperature sensor 72 adjusting main frame 31,32 water outlet, return water temperature are poor, generally, main frame 31,32 water outlet and return water temperature are poor is 5 ℃, adjust the operational efficiency of one-level variable frequency pump 41, make main frame 31,32 operate in all the time high school district, can reduce the power consumption of one-level variable frequency pump 41.
In the actual pump type selecting, except water outlet and pressure of return water poor, pipe resistance is difficult to determine, 120% type selecting that one-level variable frequency pump 41 is pressed rated output substantially, so just caused the waste of pump power, waste is very serious when main frame 31,32 part operation especially, and may cause the variation of resistance in main frame 31,32 runnings, pressure sensor 63,64 is set, can change by automatic pressure acquisition, so that one-level variable frequency pump 41 is automatically adjusted and is adapted to, and can the automatic discrimination stopping state.
As above-mentioned, switch board 99 calculates according to the parameters such as temperature computation temperature difference, pressure and environment temperature that collect, carry out two-stage frequency conversion by one-level variable frequency pump 41 and secondary variable frequency pump 42 and control, make control precision and the intellectuality more of whole central air conditioner system.
As shown in Figure 7 and in conjunction with Fig. 5, main frame 31,32 normally moves, while just in time meeting indoor set 51,52 operation, current in water pipe flow out from outlet pipe 91, along the operation of direction shown in Fig. 7 band arrow dotted line, and by return pipe 92, carry out backwater, indoor set is carried out Power supply.
As shown in Figure 8 and in conjunction with Fig. 5, when main frame 31,32 minimum operate powers during greater than the load consumed power, that is: switch board 99 collects pressure sensor 61,62,63,64 pressure parameter, temperature sensor 71,72,73,74 temperature parameter also calculate main frame 31,32 minimum operate powers greater than the load consumed power, at this moment, main frame 31,32 water yields are greater than indoor set 51,52 amount of water requireds, main frame 31, the 32 unnecessary water yields are except supplying with secondary variable frequency pump 42, and the energy-accumulating water tank 81,82 that enters series connection carries out energy storage; At this moment, water (flow) direction is as shown in Fig. 8 arrow dotted line, and a part of water yield enters indoor set 51,52 directions, and the unnecessary water yield, along towards energy-accumulating water tank 81,82 directions, entering in energy-accumulating water tank 81,82, stores energy in energy-accumulating water tank 81,82.At this moment, main frame 31, the 32 output water yields equal indoor set 51,52 water requirements and energy-accumulating water tank 81,82 water requirement sums.
as shown in Figure 9 and in conjunction with Fig. 5, the indoor set 51 that switch board 99 gathers, near the leaving water temperature of the temperature sensor 74 52 delivery ports and energy storage water tank temperature and the calculating temperature difference of temperature sensor 76, the energy storage water tank temperature and the indoor set 51 that detect when temperature sensor 76, the temperature difference of the leaving water temperature of 52 temperature sensor 74 reaches aforementioned main frame 31 at least, 5 ℃ of 32 water outlets and backwater temperature differences, at this moment, main frame 31, 32 shut down, during shutdown, main frame 31, 32 output 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 supplying with indoor set 51,52 the time, be that switch board 99 collections and accounting temperature are poor, energy-accumulating water tank 81,82 temperature differences that indoor set 51,52 leaving water temperatures and the temperature sensor 76 that detects when temperature sensor 74 detects reach or during less than backwater temperature difference, again progressively start main frame 31,32 and supply with energy, so, the central air conditioner system operation that moves in circles, main frame 31,32 on-off frequency have been greatly reduced, improved efficiency, simultaneously, save energy consumption, reached 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 operations,, for confluent, reduced the service time of one-level variable frequency pump 41 to indoor set 51,52; improved the life-span of one-level variable frequency pump 41; further improve the security of system, reduced maintenance frequency, saved maintenance cost.
Above embodiment describes the utility model central air conditioning system for example with 2 main frames 31,32 and 2 indoor sets 51,52, and the main frame more than 3 and 3 and the operation logic of indoor set are similar to the above embodiments.
Although described the utility model and advantage thereof in detail, be to be understood that in the situation that do not exceed the spirit and scope of the present utility model that limited by appended claim and can carry out various changes, alternative and conversion.And the application's scope is not limited only to the specific embodiment of the described process of specification, equipment, means.The one of ordinary skilled in the art will readily appreciate that from disclosure of the present utility model, according to the utility model, can use and carries out with the essentially identical function of corresponding embodiment described herein or obtain process, equipment, means result essentially identical with it, that existing and will be developed future.Therefore, appended claim is intended to comprise such process, equipment, means in their scope.
Claims (7)
1. air-conditioner control system, comprise first class control system, second control system, indoor set, switch board and the water pipe that connects above-mentioned first class control system, second control system and indoor set, above-mentioned switch board is electrically connected in first class control system, second control system and indoor set, above-mentioned first class control system comprises main frame, water pipe comprises outlet pipe and return pipe, it is characterized in that:
First class control system also comprises the one-level variable frequency pump that is arranged near position of host machine;
Second control system comprises the energy-accumulating water tank that is connected with the return pipe two ends with outlet pipe, and is arranged on the secondary variable frequency pump near energy-accumulating water tank.
2. air-conditioner control system according to claim 1, it is characterized in that, the close position of host machine setting of described outlet pipe and return pipe, and be respectively arranged with pressure sensor and temperature sensor on outlet pipe and return pipe, first class control system also comprises the motor-driven valve that arranges near position of host machine.
3. air-conditioner control system according to claim 2, is characterized in that, described switch board is connected near the temperature sensor of outlet pipe, is arranged at return pipe neighbouring temperature sensor and one-level variable frequency pump.
4. air-conditioner control system according to claim 3, it is characterized in that, the two ends of described energy-accumulating water tank are connected with return pipe with the outlet pipe of water pipe respectively, are provided with temperature sensor on energy-accumulating water tank and pipeline that return pipe is connected, also are provided with temperature sensor on energy-accumulating water tank.
5. air-conditioner control system according to claim 4, it is characterized in that, described indoor set two ends are respectively equipped with temperature sensor, the temperature sensor and the secondary variable frequency pump that arrange on the temperature sensor that arranges on temperature sensor, the energy-accumulating water tank at switch board connection indoor set two ends and the pipeline that return pipe is connected, energy-accumulating water tank.
6. air-conditioner control system according to claim 5, is characterized in that, the two ends of described indoor set also are respectively equipped with pressure sensor, and switch board connects the pressure sensor at indoor set two ends.
7. according to claim 1-6 described air-conditioner control systems of any one, is characterized in that, described energy-accumulating water tank is V-type spout energy-accumulating water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203283291U CN203286717U (en) | 2013-06-07 | 2013-06-07 | Air conditioner control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203283291U CN203286717U (en) | 2013-06-07 | 2013-06-07 | Air conditioner control system |
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| CN203286717U true CN203286717U (en) | 2013-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203283291U Expired - Lifetime CN203286717U (en) | 2013-06-07 | 2013-06-07 | Air conditioner control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307711A (en) * | 2013-06-07 | 2013-09-18 | 昆山市远视商用空调工程有限公司 | Air conditioner control system and control method |
-
2013
- 2013-06-07 CN CN2013203283291U patent/CN203286717U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307711A (en) * | 2013-06-07 | 2013-09-18 | 昆山市远视商用空调工程有限公司 | Air conditioner control system and control method |
| CN103307711B (en) * | 2013-06-07 | 2016-08-24 | 昆山市远视商用空调工程有限公司 | Air-conditioner control system and control method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215300 room 52, building 5, Hongji Fortune Plaza, Kunshan Development Zone, Suzhou City, Jiangsu Province Patentee after: Jiangsu farsighted Environmental Technology Co.,Ltd. Address before: 215300, Suzhou, Jiangsu Province, Kunshan City, No. 801 Bai Lu South Bo world garden 1-1706 Patentee before: Kunshan Yuanshi Commercial Air Conditioner Engineering Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
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| CX01 | Expiry of patent term |