CN203478510U - Center air conditioner energy-saving PLC - Google Patents
Center air conditioner energy-saving PLC Download PDFInfo
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- CN203478510U CN203478510U CN201320622585.1U CN201320622585U CN203478510U CN 203478510 U CN203478510 U CN 203478510U CN 201320622585 U CN201320622585 U CN 201320622585U CN 203478510 U CN203478510 U CN 203478510U
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Abstract
The utility model discloses a center air conditioner energy-saving PLC which comprises a controller CPU, an analog quantity/digital quantity input interface, a digital quantity/analog quantity output interface, a communication interface, an expansion interface, a storage and a power supply circuit. The analog quantity/digital quantity input interface, the digital quantity/analog quantity output interface, the communication interface, the expansion interface, the storage and the power supply circuit are connected with the controller CPU. The analog quantity/digital quantity input interface is connected with a cooling water outlet temperature sensor, a cooling water returning temperature sensor, a freezing water flow sensor, a freezing water outlet returning pressure difference sensor, a cooling water outlet temperature sensor, a cooling water inlet temperature sensor, an environment temperature-moisture information collecting unit, a freezing water flow information collecting unit, a freezing pump power consumption information collecting unit and a host power consumption information collecting unit. The digital quantity/analog quantity output interface is connected with a freezing pump, a cooling pump, a cooling tower fan and an air conditioner host through frequency changers respectively. Compared with prior art, the center air conditioner energy-saving PLC is high in universality, secondary development and programming are of no need, operation is easy, and energy can be better saved.
Description
Technical field
The utility model relates to a kind of PLC controller, is specifically related to a kind of central air-conditioning energy PLC controller.
Background technology
At present, in the process of central air-conditioning energy transformation, often occur: water pump power consumption, main frame take the phenomenons such as electricity, circuit power consumption, thereby cause energy-saving effect undesirable.At present the domestic producer that carries out central air-conditioning energy transformation is a lot, the universal PLC of most employing carries out frequency converter reducing energy consumption, part producer adopts building DDC or the PLC controller oneself developed to transform, but still too rely on industrial computer and carry out s operation control, equipment interoperability is poor, poor reliability, energy-saving effect is uneven, also cannot carry out a large amount of production and application simultaneously.Also do not have at present the general PLC controller of a central air-conditioning energy on market, to circulate and application.
With regard to prior art, on market, existing PLC controller exists following defect: user must carry out secondary and develop in a large number programming; Wiring drawing cannot be provided; The on-the-spot different modes of connection can not access, and must remodify drawing, reprogram debugging; Other start-stop mode of on-the-spot reconfiguration, revisions on drawings and program and debugs; Without Ethernet interface, if expansion Ethernet, price is high etc.
Wherein building DDC controller is as Honeywell, the main brands such as Jiang Sen, for central air-conditioning energy, also need configuration and debugging, general for single control object, as water pump independently, blower fan etc., collecting temperature carries out simple calculations, the control of speed is carried out in output by analog quantity to frequency converter, carry out the energy-conservation not enough to some extent of air-conditioning system total system, while carrying out s operation control due to DDC in addition, there is no whole cooperation, energy-conservation effect, controlling frequency converter with domestic PID, to carry out the energy-saving effect of water pump fan consistent, not realizing better energy saving optimizing controls, having relatively high expectations to professional technique simultaneously, those skilled in the art cannot grasp this technology.
Existing PLC controller is as converged river, Delta etc., substantially be the PLC technology of copying Mitsubishi, equally do not possess the demand of central air-conditioning energy-saving yet, user need to carry out professional design, exploitation, could apply and central air-conditioning energy transformation, and the professional knowledge requirement of each engineers and technicians' design is very high, simultaneously because thinking and the program of design are different, energy-saving effect is also very different, and very difficult assurance has good energy-saving effect; The drawing of design, the disunity of program, also caused and cannot carry out the unified and standard of technology, is unfavorable for applying in enormous quantities of power-saving technology.
Existing building DDC controller also needs configuration and debugging for central air-conditioning energy, general for single control object, as water pump independently, blower fan etc., collecting temperature carries out simple calculations, the control of speed is carried out in output by analog quantity to frequency converter, carry out the energy-conservation not enough to some extent of air-conditioning system total system, while carrying out s operation control due to DDC in addition, there is no whole cooperation, energy-conservation effect, the energy-saving effect that carries out water pump fan with PID control frequency converter is consistent, not realizing better energy saving optimizing controls, having relatively high expectations to professional technique simultaneously, those skilled in the art cannot grasp this technology.
Utility model content
The purpose of this utility model is to provide a kind of central air-conditioning energy PLC controller of new construction, and it is highly versatile not only, without secondary development and programming, and also easy and simple to handle, energy-saving effect is better.
For realizing this purpose, the utility model by the following technical solutions:
A kind of central air-conditioning energy PLC controller, comprise controller CPU, analog quantity/digital-quantity input interface, digital quantity/analog output interface circuit, communication interface, expansion interface, memory, power circuit, and analog quantity/digital-quantity input interface, digital quantity/analog output interface circuit, communication interface, memory, power circuit is connected with controller CPU, described analog quantity/digital-quantity input interface respectively with cooling water outlet temperature sensor, cooling backwater temperature sensor, chilled water flow quantity sensor, freezingly go out backwater differential pressure pickup, cooling water outlet temperature sensor, cooling inflow temperature sensor and ambient temperature and humidity, chilled-water flow, refrigerating water pump power consumption, coolant pump power consumption, host power consumption information acquisition unit is connected, described digital quantity/analog output interface circuit by frequency converter respectively with refrigerating water pump, coolant pump, blower fan of cooling tower, air-conditioner host is connected.
Described frequency converter, its input is connected with the output interface of PLC controller, and its output is connected respectively with the input interface of refrigerating water pump, coolant pump, blower fan of cooling tower, air-conditioner host.
Described PLC controller is also provided with a coupled touch control display screen.
The beneficial effects of the utility model:
With respect to prior art, the utility model regulates chilled water pump, cooling water pump and blower fan of cooling tower by frequency converter, can control accurately the chilled water of central air conditioner system and the flow of cooling water and fan delivery, not only meet the instructions for use of central air-conditioning air conditioning terminal but also can reach the object of saving energy, and control accuracy is higher, the PLC controller adopting can also real-time detecting system running status, and feed back to PLC controller, make in time corresponding output and control.The utility model is simple to operate simultaneously, and user only need to connect according to drawing, sets relevant parameter, through shirtsleeve operation, can put into operation, realizes Optimization of Energy Saving operation, obtains obvious economic benefit.Connected network communication is powerful simultaneously, standard configuration Ethernet interface, can with the PLC control system of various building DDC control systems, various producers, interconnect, realize freely communication easily, and can be connected with various intelligent kilowatt-hour meters easily, exploitation as building building energy source monitoring system etc., can independent assortment, highly versatile.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment.
Fig. 2 is the control principle schematic diagram of the utility model specific embodiment.
the specific embodiment
The utility model is further illustrated with reference to the accompanying drawings in conjunction with the embodiments.
As Fig. 1, shown in Fig. 2, a kind of central air-conditioning energy PLC controller, comprise controller CPU, analog quantity/digital-quantity input interface, digital quantity/analog output interface circuit, communication interface, expansion interface, memory, power circuit, and analog quantity/digital-quantity input interface, digital quantity/analog output interface circuit, communication interface, memory, power circuit is connected with controller CPU, described analog quantity/digital-quantity input interface respectively with cooling water outlet temperature sensor, cooling backwater temperature sensor, chilled water flow quantity sensor, freezingly go out backwater differential pressure pickup, cooling water outlet temperature sensor, cooling inflow temperature sensor and ambient temperature and humidity, chilled-water flow, refrigerating water pump power consumption, coolant pump power consumption, host power consumption information acquisition unit is connected, described digital quantity/analog output interface circuit by frequency converter respectively with refrigerating water pump, coolant pump, blower fan of cooling tower, air-conditioner host is connected.Wherein, described frequency converter, its input is connected with the output interface of PLC controller, and its output is connected respectively with the input interface of refrigerating water pump, coolant pump, blower fan of cooling tower, air-conditioner host.Described PLC controller is also provided with a coupled touch control display screen.
Claims (3)
1. a central air-conditioning energy PLC controller, it is characterized in that, comprise controller CPU, analog quantity/digital-quantity input interface, digital quantity/analog output interface circuit, communication interface, expansion interface, memory, power circuit, and analog quantity/digital-quantity input interface, digital quantity/analog output interface circuit, communication interface, memory, power circuit is connected with controller CPU, described analog quantity/digital-quantity input interface respectively with cooling water outlet temperature sensor, cooling backwater temperature sensor, chilled water flow quantity sensor, freezingly go out backwater differential pressure pickup, cooling water outlet temperature sensor, cooling inflow temperature sensor and ambient temperature and humidity, chilled-water flow, refrigerating water pump power consumption, coolant pump power consumption, host power consumption information acquisition unit is connected, described digital quantity/analog output interface circuit by frequency converter respectively with refrigerating water pump, coolant pump, blower fan of cooling tower, air-conditioner host is connected.
2. central air-conditioning energy PLC controller according to claim 1, it is characterized in that, described frequency converter, its input is connected with the output interface of PLC controller, and its output is connected respectively with the input interface of refrigerating water pump, coolant pump, blower fan of cooling tower, air-conditioner host.
3. central air-conditioning energy PLC controller according to claim 1, is characterized in that, described PLC controller is also provided with a coupled touch control display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622585.1U CN203478510U (en) | 2013-10-10 | 2013-10-10 | Center air conditioner energy-saving PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622585.1U CN203478510U (en) | 2013-10-10 | 2013-10-10 | Center air conditioner energy-saving PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203478510U true CN203478510U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320622585.1U Expired - Fee Related CN203478510U (en) | 2013-10-10 | 2013-10-10 | Center air conditioner energy-saving PLC |
Country Status (1)
| Country | Link |
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| CN (1) | CN203478510U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676834A (en) * | 2015-02-02 | 2015-06-03 | 韩冰 | Method for controlling cooling water systems in freezing station systems on basis of environmental temperatures and compression ratios |
| CN106672470A (en) * | 2016-10-17 | 2017-05-17 | 广汉市思科信达科技有限公司 | Oil storage tank cooling system |
| CN109682015A (en) * | 2018-12-19 | 2019-04-26 | 珠海市精实测控技术有限公司 | A kind of air-conditioning internal serial protocol interface Combining soft control system |
| CN113175743A (en) * | 2021-04-15 | 2021-07-27 | 江苏天纳节能科技股份有限公司 | Special integrated intelligent driver for fan and water pump of central air-conditioning energy-saving control system |
-
2013
- 2013-10-10 CN CN201320622585.1U patent/CN203478510U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676834A (en) * | 2015-02-02 | 2015-06-03 | 韩冰 | Method for controlling cooling water systems in freezing station systems on basis of environmental temperatures and compression ratios |
| CN104676834B (en) * | 2015-02-02 | 2017-06-23 | 韩冰 | The method for controlling cooling water system in refrigeration station system with pressure ratio based on ring temperature |
| CN106672470A (en) * | 2016-10-17 | 2017-05-17 | 广汉市思科信达科技有限公司 | Oil storage tank cooling system |
| CN109682015A (en) * | 2018-12-19 | 2019-04-26 | 珠海市精实测控技术有限公司 | A kind of air-conditioning internal serial protocol interface Combining soft control system |
| CN113175743A (en) * | 2021-04-15 | 2021-07-27 | 江苏天纳节能科技股份有限公司 | Special integrated intelligent driver for fan and water pump of central air-conditioning energy-saving control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20141010 |
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| EXPY | Termination of patent right or utility model |