CN202993458U - Integrated variable air volume system and air conditioning unit control cabinet - Google Patents
Integrated variable air volume system and air conditioning unit control cabinet Download PDFInfo
- Publication number
- CN202993458U CN202993458U CN2012206821200U CN201220682120U CN202993458U CN 202993458 U CN202993458 U CN 202993458U CN 2012206821200 U CN2012206821200 U CN 2012206821200U CN 201220682120 U CN201220682120 U CN 201220682120U CN 202993458 U CN202993458 U CN 202993458U
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Abstract
The utility model discloses an integrated variable air volume system and air conditioning unit control cabinet, which comprises a power distribution device used for providing power to an AHU (air handling unit) and a controller device used for controlling the AHU, wherein the power distribution device is connected with the controller device; the controller device comprises a built-in DDC (direct digital controller) used for controlling the whole AHU to work, a static pressure optimization controller used for optimizing and regulating the air supply frequency of the AHU and a fresh air optimization controller used for controlling the fresh air volume; and the DDC, the static pressure optimization controller and the fresh air optimization controller are independent of each other and are connected through an internal bus. The control cabinet adopting the structure has the advantages of simplicity for wiring, directness for control and capability of optimizing the fresh air volume by comparing indoor and outdoor enthalpy values.
Description
Technical field
The utility model relates to the automatic control technology field of air-conditioning system, is specifically related to integrated variable air volume system air-conditioning machine set control cabinet.
Background technology
In modern architecture, design superior VAV air-conditioning system (VAV:Variable Air Volume, variable air volume system) comfortable space environment can be provided, realize the saving of energy consumption.The key of VAV operation of air conditioner success is VAV-Box and air-conditioning AHU unit (AHU:Air handling unit; The air-treatment unit) automatic control system.In the VAV air-conditioning system, intelligence is mainly reflected in the work engineering of the automatic control of air-conditioning AHU unit and Fan Energy-saving with energy-saving run, and its control section is the most complicated part of whole VAV air-conditioning system, is also the key of VAV commissioning of central air conditioning systems success.
In the VAV air-conditioning system, robot control system(RCS) is important part, and the control more complicated of air-conditioning AHU unit relates to sensor controller more, the control logic more complicated.In the air-conditioning AHU of traditional VAV variable air volume system unit is controlled, employing be the design that strong and weak electricity separates, air-conditioning AHU unit automatic controller is directly controlled frequency converter by 0-10v or 4-20mA analog quantity and is realized fan frequency conversion.Need to connect a large amount of control cables between strong and weak electronic box, and have the problems such as control inaccuracy, debugging complexity.
The VAV casing refers to the end equipment of air conditioning system with variable, is one of key equipment of air conditioning system with variable.Air-conditioning system is regulated the wind air output one time by end equipment, and follow load changes, and keeps room temperature.Necessity that the robot control system(RCS) of present VAV air-conditioning system still requires further improvement.
The utility model content
The purpose of this utility model is to provide integrated variable air volume system air-conditioning machine set control cabinet, and having solved needs to connect a large amount of control cables between strong and weak electronic box, and has control inaccuracy, the problem that debugging is complicated.
For achieving the above object, the utility model adopts following technical scheme:
Integrated variable air volume system air-conditioning machine set control cabinet comprises that this power distribution equipment is connected with control device be used to the power distribution equipment that air-conditioning AHU unit power is provided with for the control device of controlling air-conditioning AHU unit; Control device comprises be used to built-in DDC controller (the DDC:Direct Digital Control that controls the work of whole air-conditioning AHU unit, Direct Digital is controlled), be used for optimizing the static pressure optimization controller of regulating air-conditioning AHU unit blasting air frequency and the fresh air optimized controller that is used for controlling resh air requirement, DDC controller, static pressure optimization controller and the controller of being connected are mutually independent and connect by internal bus.
Further, this switch board also comprises for the control display panel of setting and/or show air-conditioning AHU unit duty, this control display panel be connected control device and connect.
Further, described control display panel be connected the static pressure optimization controller and connect.
Further, described power distribution equipment comprises breaker, contactor and relay; Relay be connected the DDC controller and connect, breaker is connected frequency converter and is connected the static pressure optimization controller to connect with contactor.
Further, described DDC controller connects by binding post and the element of being connected the outer described air-conditioning AHU unit of switch board, and described fresh air optimized controller is also by this binding post be connected the element connection of the air-conditioning AHU unit of switch board outside.
Further, described air-conditioning AHU unit comprises air-conditioning AHU unit end equipment variable air volume system VAV casing, and this VAV casing is provided with the VAV controller, and described static pressure optimization controller connects by network with this VAV controller.
Further, described static pressure optimization controller and this VAV controller by building automatic be connected procotol BACnet or fieldbus LonWorks and connect.
Further, this switch board also comprises the heavy-current control device, and described DDC controller and this heavy-current control device are integrated.
Further, described DDC controller comprises for the DDC input module that receives wind pushing temperature, return air temperature and filter screen pressure reduction, also comprises the DDC output module for the output control signal.
Further, described fresh air optimized controller comprises for receiving indoor carbon dioxide CO
2The fresh air optimized input module of concentration parameter also comprises the fresh air optimized output module of controlling the air quantity control signal of new wind for output.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, in traditional air conditioning system with variable, fresh air optimized controller is to be integrated in the DDC controller, and the utility model adopts independently fresh air optimized controller, has a wiring simple, controls directly, can relatively optimize new wind operation by the indoor and outdoor enthalpy;
2, the utility model adopts independently static pressure optimization controller, can directly be connected by intelligent network with each VAV controller, and built-in optimal control logic can be controlled the vector frequency converter operation automatically, realizes the VAV operation control of exempting to debug;
3, the utility model adopts independently DDC controller, fresh air optimized controller and static pressure optimization controller, the logical miss that can avoid a plurality of logic operations to cause in same controller, can realize the independent programming of Control-oriented object, realize efficiently controlling flexibly;
4, the utility model adopts the integrated design of strong and weak electricity, and built-in VAV control logic through optimizing carries forceful electric power switch and frequency converter, coordinates special-purpose sensor and actuator, has realized that air conditioning system with variable is simple, energy-conservation, efficient operation; By adopting the integrated design of strong and weak electricity, only need to access three phase mains and the motor wiring get final product when the forceful electric power wiring, built-in frequency converter has the function of automatic phase sequence adjustment;
5, of the present utility model by the operation referring to every ambient parameter and each equipment of Detection ﹠ Controling of actuator and sensor, switch board does not need upper main frame to intercourse data, all control strategies are all realized in this switch board, system does not rely on the BMS system, can automatically realize the operation of VAV system.
6, integral control cabinet of the present utility model, field connection is simple and convenient, and all sensors all connect by dedicated terminals, rather than need on-the-spot definition one to one with actuator, have avoided wiring chaotic, have reduced the professional requirement to the engineering staff.
7, the utility model can compatible BACnet(building automatic and is controlled procotol) and the LonWorks(fieldbus) etc. the international standard communications protocol, the vav terminal product of compatible each main brand can be with complete control system of composition.The utlity model has higher cost performance, thereby guaranteed the economy of system.
Description of drawings
Fig. 1 is the schematic diagram of the integrated variable air volume system air-conditioning of the utility model machine set control cabinet;
In figure, the 1-power distribution equipment; The 11-breaker; The 12-contactor; The 13-relay; The 2-control device; The 21-DDC controller; The fresh air optimized controller of 22-; 23-static pressure optimization controller; The 24-binding post; 3-control display panel; The 4-frequency converter; The 5-VAV controller; The 6-element; The 7-motor.
The specific embodiment
As shown in Figure 1, the integrated variable air volume system air-conditioning machine set control cabinet of the utility model embodiment, comprise be used to the power distribution equipment 1 that air-conditioning AHU unit power is provided and be used for to control the control device 2 of air-conditioning AHU unit, power distribution equipment 1 is connected connection with control device; Control device 2 comprises be used to the built-in DDC controller 21(DDC:Direct Digital Control that controls the work of whole air-conditioning AHU unit, Direct Digital control), be used for optimizing the static pressure optimization controller 23 of regulating air-conditioning AHU unit blasting air frequency and the fresh air optimized controller 22 that is used for the control resh air requirement, this DDC controller 21, static pressure optimization controller 23 and the controller 22 of being connected are mutually independent and connect by internal bus, and this fresh air optimized controller 22 realizes supplying as required new wind or new wind auxiliary cooling.
In traditional air conditioning system with variable, fresh air optimized controller is to be integrated in the DDC controller, adopts independently fresh air optimized controller 22 in the present embodiment, has a wiring simple, controls directly, can relatively optimize new wind operation by the indoor and outdoor enthalpy; The present embodiment adopts independently static pressure optimization controller 23, can directly be connected by intelligent network with each VAV controller, and built-in optimal control logic can be controlled the vector frequency converter operation automatically, realizes the VAV operation control of exempting to debug; The present embodiment adopts independently DDC controller 21, fresh air optimized controller 22 and static pressure optimization controller 23, the logical miss that can avoid a plurality of logic operations to cause in same controller, can realize the independent programming of Control-oriented object, realize efficiently controlling flexibly.The switch board of the present embodiment also comprises for the control display panel 3 of setting and/or show air-conditioning AHU unit duty, and control display panel 3 is connected connection with the static pressure optimization controller.
In the present embodiment, power distribution equipment 1 comprises breaker 11, contactor 12 and relay 13.Relay 11 is connected connection with the DDC controller, DDC controller 21, fresh air optimized controller 22 connect by the element 6 of binding post 24 with the air-conditioning AHU unit of being connected the switch board outside respectively.
Air-conditioning AHU unit comprises air-conditioning AHU unit end equipment VAV casing, this VAV casing is provided with VAV controller 5, static pressure optimization controller 23 passes through standard BACnet(building automatic and is connected procotol with this VAV controller 5) or the LonWorks(fieldbus) connect, but Automatic Optimal air quantity and static pressure control logic.Further, static pressure optimization controller 23 is connected with the control display panel also and can be connected by standard BACnet or LonWorks.The present embodiment can compatible LonWorks and the international standard communications protocol such as BACnet, and the vav terminal product of compatible each main brand can be with forming a complete control system.
The present embodiment also comprises the heavy-current control device, and DDC controller 21 and this heavy-current control device adopt integrated design, make the power section wiring simple.The present embodiment adopts the integrated design of strong and weak electricity, and built-in VAV control logic through optimizing carries forceful electric power switch and frequency converter, coordinates special-purpose sensor and actuator, has realized that air conditioning system with variable is simple, energy-conservation, efficient operation; By adopting the integrated design of strong and weak electricity, only need to access three phase mains and the motor wiring get final product when the forceful electric power wiring, built-in frequency converter has the function of automatic phase sequence adjustment.
DDC controller in the present embodiment comprises for receiving wind pushing temperature, return air temperature, the isoparametric DDC input module of filter screen pressure reduction, also comprises for the output control signal to control the DDC output module of water valve aperture.This DDC output module connects with the built-in optimal control module of being connected in the DDC controller, with the coil pipe water valve of realizing controlling air-conditioning AHU unit, keep wind pushing temperature.
Fresh air optimized controller in the present embodiment comprises for CO in receiving chamber
2The fresh air optimized input module of concentration parameter also comprises the fresh air optimized output module for control signal, to realize according to indoor CO
2Concentration is independently controlled the air quantity of new wind, can automatically compare the indoor and outdoor enthalpy, realizes the operation of new wind auxiliary cooling and all-fresh air.Fresh air optimized input module also can receive the parameters such as new wind air quantity, return air temperature humidity, and the control signals such as new valve area, exhaust valve aperture and air returning valve aperture are controlled in output.
Static pressure optimization controller 23 in the present embodiment can with 5 communications of VAV controller, can control according to actual demand Air Volume Optimization and the static pressure of VAV casing, by the modbus interface and preferred vector frequency converter of being located at DDC controller 21, can realize the blower fan FREQUENCY CONTROL of 5-60HZ.The present embodiment switch board also comprises the heavy-current control device, the design that is integrated of described DDC controller and this heavy-current control device, and the power section wiring is simple.
The present embodiment pass through actuator and sensor referring to the operation of every ambient parameter and each equipment of Detection ﹠ Controling, switch board does not need upper main frame to intercourse data, all control strategies are all realized in this switch board, system does not rely on the BMS system, can automatically realize the operation of VAV system.
The present embodiment field connection is simple and convenient, and all sensors all connect by dedicated terminals, rather than need on-the-spot definition one to one with actuator, have avoided wiring chaotic, have reduced the professional requirement to the engineering staff.
Software in the present embodiment has adopted the necessary precautionary measures, by the cryptoguard of different stage, can realize the safety management function of data, thereby makes system have very high security.
In order better to understand the present embodiment, the characteristics of the present embodiment are described now: 1, adopt the strong and weak electricity integrated design, intelligent controller and low tension switch, Design of Inverter are in a casing, and wiring is simple; 2, air-conditioning AHU generator set controller reads wind pushing temperature and filter screen pressure difference signal, only controls blower fan start and stop and cold valves aperture, controls simple; 3, become the static pressure optimization controller and adopt the standard communication bus to be connected with end VAV controller, frequency converter adopts modbus brand bus to be connected with change static pressure optimization controller, can transmit a plurality of variablees, can directly read traditional control method the parameter that is difficult to realize, as frequency, electric current, voltage, exciting current, torque current etc., intelligent controller DDC can control according to a plurality of variablees, can directly calculate power consumption, be used for the Optimization of Energy Saving operation logic; 4, fresh air optimized controller independently, to the signal that the sensor that closes with new wind facies gathers, after optimizing computing through intelligent controller, the output control signal is controlled with new wind facies and is closed fan valve executor; 5, adopt bus mode to connect between each controller, realize the interconnected interoperability of sense and control technique; 6, connect whole building control system by the TCP/IP network; 7, the field data that control panel can query sensors obtains can be set duty and operating point.
Claims (10)
1. integrated variable air volume system air-conditioning machine set control cabinet is characterized in that it comprises: the control device that is used for providing the power distribution equipment of air-conditioning AHU unit power and is used for controlling air-conditioning AHU unit, and this power distribution equipment is connected with control device;
Described control device comprises be used to the built-in Direct Digital control DDC controller of controlling the work of whole air-conditioning AHU unit, for the static pressure optimization controller of optimizing adjusting air-conditioning AHU unit blasting air frequency, reaches the fresh air optimized controller for the control resh air requirement;
Described DDC controller, static pressure optimization controller and fresh air optimized controller are mutually independent and connect by internal bus.
2. integrated variable air volume system air-conditioning machine set control cabinet according to claim 1 is characterized in that: it comprises that also this control display panel is connected with control device for the control display panel of setting and/or show air-conditioning AHU unit duty.
3. integrated variable air volume system air-conditioning machine set control cabinet according to claim 2 is characterized in that: described control display panel be connected the static pressure optimization controller and connect.
4. integrated variable air volume system air-conditioning machine set control cabinet according to claim 1, it is characterized in that: described power distribution equipment comprises breaker, contactor and relay; Described relay be connected the DDC controller and connect, breaker is connected frequency converter and is connected the static pressure optimization controller to connect with contactor.
5. integrated variable air volume system air-conditioning machine set control cabinet according to claim 4, it is characterized in that: described DDC controller connects by binding post and the element of being connected the outer described air-conditioning AHU unit of switch board, and described fresh air optimized controller is by this binding post and be connected the element connection of the air-conditioning AHU unit of switch board outside.
6. integrated variable air volume system air-conditioning machine set control cabinet according to claim 1, it is characterized in that: described air-conditioning AHU unit comprises air-conditioning AHU unit end equipment variable air volume system VAV casing, this VAV casing is provided with the VAV controller, and described static pressure optimization controller connects by network with this VAV controller.
7. integrated variable air volume system air-conditioning machine set control cabinet according to claim 6 is characterized in that: described static pressure optimization controller and this VAV controller by building automatic be connected procotol BACnet or fieldbus LonWorks and connect.
8. integrated variable air volume system air-conditioning machine set control cabinet according to claim 1, it is characterized in that: it also comprises the heavy-current control device, described DDC controller and this heavy-current control device are integrated.
9. integrated variable air volume system air-conditioning machine set control cabinet according to claim 1 is characterized in that: described DDC controller comprises for the DDC input module that receives wind pushing temperature, return air temperature and filter screen pressure reduction, and is used for the DDC output module of output control signal.
10. integrated variable air volume system air-conditioning machine set control cabinet according to claim 1 is characterized in that: described fresh air optimized controller comprises for receiving indoor carbon dioxide CO
2The fresh air optimized input module of concentration parameter, and be used for the fresh air optimized output module that the air quantity control signal of new wind is controlled in output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206821200U CN202993458U (en) | 2012-12-11 | 2012-12-11 | Integrated variable air volume system and air conditioning unit control cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206821200U CN202993458U (en) | 2012-12-11 | 2012-12-11 | Integrated variable air volume system and air conditioning unit control cabinet |
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| CN202993458U true CN202993458U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012206821200U Expired - Fee Related CN202993458U (en) | 2012-12-11 | 2012-12-11 | Integrated variable air volume system and air conditioning unit control cabinet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222439A (en) * | 2015-10-19 | 2016-01-06 | 北京捷通机房设备工程有限公司 | Data center's air conditioning terminal energy-saving control device and control method |
| CN105281219A (en) * | 2015-10-26 | 2016-01-27 | 珠海格力电器股份有限公司 | Switch board and switch board system |
| CN105352139A (en) * | 2015-12-08 | 2016-02-24 | 刘俊声 | Control method of dynamic hydraulic power balancing type terminal fan coil |
| CN110307615A (en) * | 2019-06-06 | 2019-10-08 | 浙江越芬科技有限公司 | Fresh air flow rate optimization method and unit pricing method |
-
2012
- 2012-12-11 CN CN2012206821200U patent/CN202993458U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222439A (en) * | 2015-10-19 | 2016-01-06 | 北京捷通机房设备工程有限公司 | Data center's air conditioning terminal energy-saving control device and control method |
| CN105281219A (en) * | 2015-10-26 | 2016-01-27 | 珠海格力电器股份有限公司 | Switch board and switch board system |
| CN105352139A (en) * | 2015-12-08 | 2016-02-24 | 刘俊声 | Control method of dynamic hydraulic power balancing type terminal fan coil |
| CN105352139B (en) * | 2015-12-08 | 2019-08-20 | 刘俊声 | The control method of dynamic hydraulic equilibrium tail-end blower fan coil pipe |
| CN110307615A (en) * | 2019-06-06 | 2019-10-08 | 浙江越芬科技有限公司 | Fresh air flow rate optimization method and unit pricing 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |