CN202250763U - Intelligent energy saving control system with constant temperature difference for air-conditioning water pump - Google Patents
Intelligent energy saving control system with constant temperature difference for air-conditioning water pump Download PDFInfo
- Publication number
- CN202250763U CN202250763U CN2011203990861U CN201120399086U CN202250763U CN 202250763 U CN202250763 U CN 202250763U CN 2011203990861 U CN2011203990861 U CN 2011203990861U CN 201120399086 U CN201120399086 U CN 201120399086U CN 202250763 U CN202250763 U CN 202250763U
- Authority
- CN
- China
- Prior art keywords
- temperature
- water
- energy
- air
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to an intelligent energy saving control system with the constant temperature difference for an air-conditioning water pump, which comprises an energy saving controller, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is connected with a water supply pipe for sensing the temperature of the supplied water; the second temperature sensor is connected with a water return pipe for sensing the temperature of return water; the first temperature sensor and the second temperature sensor transmit a sensed water-supply temperature signal and a sensed water-return temperature signal to the energy saving controller; the energy saving controller respectively receives temperature signals transmitted from the first temperature sensor and the second temperature sensor to convert the temperature signals into temperature values; a temperature difference value between the water-supply water temperature and the water-return water temperature is calculated; and then, PID (Proportion Integration Differentiation) control operation is carried out to convert the temperature difference value into alternating-current output power so as to control the operation speed rate of the water pump by the output frequency. According to the system disclosed by the utility model, energy can be effectively saved, and the difficult problem of high air-conditioning energy consumption in the prior art is overcome.
Description
Technical field
The utility model relates to air-conditioning subsidiary engine control technique, more particularly, relates to a kind of air-conditioning water pump intelligent constant-temperature difference energy-saving control system.
Background technique
In the heavy construction, generally all can be equipped with central air-conditioning system in modern times, it can improve the environment of people's life or work; But central air-conditioner also is the maximum equipment of energy consumption in the building; Account for 60%～70% of building total energy consumption, and wherein quite a few energy consumption is consumed by the water pump in the air-conditioning subsidiary engine, because the capacity of air-conditioning water pump all is to add a part of allowance calculating again according to maximum load to get; And in actual motion; In most cases ambient temperature does not reach the maximum load requirement, if then there is great energy waste in water pump still according to the capacity running of setting.
Existing air conditioner water pump control system adopts star-triangle start mode mostly; Though or a part of water pump installs frequency conversion drive additional; But do not have rational control system to control, can only set fixed frequency artificially, so not only waste of manpower but also do not have too remarkable energy saving effect.
The model utility content
The utility model technical problem to be solved provides a kind of air-conditioning water pump intelligent constant-temperature difference energy-saving control system, and it can be effectively energy-conservation, to overcome the big difficult problem of air conditioning energy consumption that exists in the existing technology.
The technological scheme that the utility model solves the problems of the technologies described above is following:
A kind of air-conditioning water pump intelligent constant-temperature difference energy-saving control system; Comprise energy-saving controller and temperature transducer; Said temperature transducer is connected with energy-saving controller; The temperature signal that senses is transferred to said energy-saving controller, and energy-saving controller is connected with water pump, and energy-saving controller is according to the exploitation speed of said temperature signal control of pump.
Further, said temperature transducer comprises first temperature transducer and second temperature transducer, and first temperature transducer links to each other with water pipe; Sensing water supply water temperature; Second temperature transducer links to each other with return pipe, sensing backwater water temperature, and water pipe all is connected the air-conditioning unit with return pipe.
Further; Said energy-saving controller receives the temperature signal that first, second temperature transducer sends respectively; Convert temperature signal to temperature value; Energy-saving controller is provided with master control borad, and master control borad calculates the temperature gap of water supply water temperature and backwater water temperature, and according to the exploitation speed of this temperature gap control of pump.
The described system of the utility model can more directly be reacted to the consumption of air-conditioning unit air conditioner group load in the control system, thereby makes corresponding control more accurately.The air-conditioning unit load is big more, and it is big more with the temperature difference of backwater to supply water, and the rotating speed of control of pump is high more; The air-conditioning unit load is more little, and it is more little with the temperature difference of backwater to supply water, and the rotating speed of control of pump is low more; During air-conditioning unit load Close All, water supply is zero with the temperature difference of backwater under the perfect condition, and water pump moves to guarantee water flow with predefined minimum speed.
Description of drawings
Fig. 1 is the utility model structural representation;
In the accompanying drawing, the list of parts of each label representative is following:
1, energy-saving controller, 2, first temperature transducer, 3, second temperature transducer, 4, water pump, 5, the air-conditioning unit, 6, return pipe, 7, water pipe.
Embodiment
Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described, institute gives an actual example and only is used to explain the utility model, is not the scope that is used to limit the utility model.
As shown in Figure 1; The described air-conditioning water pump of the utility model embodiment intelligent constant-temperature difference energy-saving control system; Comprise energy-saving controller 1, first temperature transducer 2 and second temperature transducer 3; First temperature transducer 2 links to each other with water pipe 7 with sensing water supply water temperature, and second temperature transducer 3 links to each other with sensing backwater water temperature with return pipe 6.Said first, second temperature transducer all is connected with energy-saving controller 1, and the water supply of sensing and the temperature signal of backwater are transferred to said energy-saving controller 1.Said energy-saving controller 1 receives the temperature signal that first, second temperature transducer sends respectively, converts temperature signal to temperature value, and energy-saving controller is provided with master control borad, and master control borad calculates the temperature gap of water supply water temperature and backwater water temperature.
Said energy-saving controller also comprises rectification module, be the inversion module of alternating current (a.c.) and the driving and the protective circuit that are connected with said master control borad respectively with the direct current (d.c.) inversion.
Said inversion module is connected with water pump 4 through electric wire; Inversion module also is connected with said driving and protective circuit; The positive input of said inversion module inserts the forward output terminal of rectification module, and the negative input of inversion module inserts the negative sense output terminal of rectification module.
Two over capacity capacitor C 1; The C2 access rectification module of connecting each other; The negative pole of diode inserts the forward output terminal of rectification module, and the resistance R parallel connection inserts on the said diode, and the positive pole of diode inserts the anode of thyristor; The negative electrode of thyristor inserts the negative sense output terminal of rectification module, and the gate pole of thyristor inserts said driving and protective circuit.Described over capacity capacitor C 1, C2, diode connected in parallel and resistance R and thyristor have played the effect of filtering and rectification.
One termination of current sensor is gone on the electric wire that is connected with water pump 4 to record electric current, passes to master control borad after the other end of current sensor records.Operation display panel is connected with master control borad, and master control borad is set mode of operation and relevant parameter through operation display panel.
The omnidistance operating index of keeping watch on each module of said driving and protective circuit; The electric current that senses when current sensor is excessive or when other unusual conditions occurring; Driving and protective circuit will be taked protective measure; The signal that gives the alarm is given master control borad, does further processing by master control borad again according to nature of trouble.
After the described system of the utility model inserts three-phase 380v, 50Hz Ac; Convert direct current into through rectification module; Be connected into inversion module through dc bus then, described over capacity capacitor C 1, C2, diode connected in parallel and resistance R and thyristor have played the effect of filtering and rectification.Water pump 4 also connects water pipe 7 and air-conditioning unit 5 respectively, and air-conditioning unit 5 also connects return pipe 6.After master control borad calculates the temperature gap of water supply water temperature and backwater water temperature; Can compare with predefined temperature gap; And carry out PID (proportional-integral-differential) and control computing; Convert temperature gap into output frequency, become the identical or close Ac of frequency that obtains with the master control borad computing to direct current another mistake, come feed water pump 4 power supplies with this Ac output frequency through the rectification module rectification through the break-make of controlling thyristor in the inversion module; Drive water pump 4 runnings by the water pump drive motor; Thereby the exploitation speed of control of pump 4, the change of water pump 4 rotating speeds will cause the variation of air-conditioning unit 5 water flows, and the variation of water flow will exert an influence to the return water temperature that comes out from air-conditioning unit 5; Thereby changed the temperature difference between water supply and the backwater, the actual temperature difference is changed near being centered around the predefined temperature difference all the time among a small circle.
Thereby the described energy-saving control system of the utility model can more directly be reacted to the consumption of air-conditioning unit load and make corresponding control in the control system more accurately.The air-conditioning unit load is big more, and it is big more with the temperature difference of backwater to supply water, and the rotating speed of control of pump is high more; The air-conditioning unit load is more little, and it is more little with the temperature difference of backwater to supply water, and the rotating speed of control of pump is low more; During air-conditioning unit load Close All, water supply is zero with the temperature difference of backwater under the perfect condition, and water pump moves to guarantee water flow with predefined minimum speed.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. air-conditioning water pump intelligent constant-temperature difference energy-saving control system; It is characterized in that: comprise energy-saving controller (1) and temperature transducer; Said temperature transducer is connected with energy-saving controller (1); The temperature signal that senses is transferred to said energy-saving controller (1), and energy-saving controller (1) is connected with water pump (4), and energy-saving controller (1) is according to the exploitation speed of said temperature signal control of pump (4).
2. air-conditioning water pump intelligent constant-temperature difference energy-saving control system according to claim 1; It is characterized in that: said temperature transducer comprises first temperature transducer (2) and second temperature transducer (3); First temperature transducer (2) links to each other with water pipe (7), sensing water supply water temperature, and second temperature transducer (3) links to each other with return pipe (6); Sensing backwater water temperature, water pipe (7) all is connected air-conditioning unit (5) with return pipe (6).
3. according to claim 1,2 described air-conditioning water pump intelligent constant-temperature difference energy-saving control systems, it is characterized in that: said energy-saving controller (1) receives the temperature signal that first, second temperature transducer sends respectively, converts temperature signal to temperature value; Energy-saving controller (1) is provided with master control borad, and master control borad calculates the temperature gap of water supply water temperature and backwater water temperature, and according to the exploitation speed of this temperature gap control of pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203990861U CN202250763U (en) | 2011-10-19 | 2011-10-19 | Intelligent energy saving control system with constant temperature difference for air-conditioning water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203990861U CN202250763U (en) | 2011-10-19 | 2011-10-19 | Intelligent energy saving control system with constant temperature difference for air-conditioning water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250763U true CN202250763U (en) | 2012-05-30 |
Family
ID=46112015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203990861U Expired - Fee Related CN202250763U (en) | 2011-10-19 | 2011-10-19 | Intelligent energy saving control system with constant temperature difference for air-conditioning water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250763U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750578A (en) * | 2013-02-26 | 2014-04-30 | 刘铭健 | Air conditioning cap and air conditioning clothes |
| CN104596040A (en) * | 2015-02-04 | 2015-05-06 | 珠海格力电器股份有限公司 | Water pump control method and system for air conditioner cooling system and household central air conditioner |
| CN109668272A (en) * | 2018-12-11 | 2019-04-23 | 上海慧鎏科技有限公司 | Central air conditioner system refrigerating water pump progress control method and freezing pump controller |
-
2011
- 2011-10-19 CN CN2011203990861U patent/CN202250763U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103750578A (en) * | 2013-02-26 | 2014-04-30 | 刘铭健 | Air conditioning cap and air conditioning clothes |
| CN103750578B (en) * | 2013-02-26 | 2015-06-03 | 刘铭健 | Air conditioning cap and air conditioning clothes |
| CN104596040A (en) * | 2015-02-04 | 2015-05-06 | 珠海格力电器股份有限公司 | Water pump control method and system for air conditioner cooling system and household central air conditioner |
| CN109668272A (en) * | 2018-12-11 | 2019-04-23 | 上海慧鎏科技有限公司 | Central air conditioner system refrigerating water pump progress control method and freezing pump controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105020845B (en) | A kind of air-conditioning system linkage energy-saving control system and method | |
| CN104808719A (en) | Temperature control system and method | |
| CN202250763U (en) | Intelligent energy saving control system with constant temperature difference for air-conditioning water pump | |
| CN212132815U (en) | Intelligent cold station control system | |
| CN201547915U (en) | Central air-conditioning energy-saving device | |
| CN102062460A (en) | Accurate air supply system of air conditioning unit and realizing method thereof | |
| CN203081721U (en) | Water pump energy-saving system | |
| CN201118513Y (en) | Efficiency optimization control system for three-phase inductance electromotor | |
| CN207702671U (en) | A kind of water pump of central air conditioner energy conserving system | |
| CN202254114U (en) | Air conditioner time-sharing variable-speed energy-saving control system | |
| CN209100241U (en) | A kind of idle call intelligent water pump frequency conversion system | |
| CN202254133U (en) | Intelligent constant-temperature variable-wind variable-water-quantity energy-saving control system | |
| CN206932006U (en) | A kind of motor power-saving device with energy consumption monitoring function | |
| CN203024338U (en) | Energy-saving control device of central air conditioner and central air conditioner | |
| CN203223360U (en) | Water pump energy-saving device of fan | |
| CN206409217U (en) | Intelligent variable parameter oil recovery energy-saving controller | |
| CN202769879U (en) | Intelligent control system for central air conditioner | |
| CN105089965B (en) | A kind of AC photovoltaic water pump system and its control method | |
| CN201699651U (en) | Energy-saving equipment for AC motor | |
| CN202868912U (en) | Central air-conditioning energy saving controller | |
| CN201270490Y (en) | Energy saving control apparatus for oil pumping machine large power DC brushless motor | |
| CN204358876U (en) | The energy-saving constant flow central air conditioner system of water pump operation is regulated based on permanent magnetic speed-adjusting | |
| CN202501599U (en) | Intelligent energy-saving controller used in ground-source heat pump central air-conditioning system | |
| CN103629137B (en) | Noise reduction processing method for DCS cabinet | |
| CN202254131U (en) | Multifunctional energy-saving control system for central air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20141019 |
|
| EXPY | Termination of patent right or utility model |