CN201954709U

CN201954709U - Host energy saving device for central air-conditioning centralized control system

Info

Publication number: CN201954709U
Application number: CN2011200463984U
Authority: CN
Inventors: 张建平; 任淼锋
Original assignee: ZHEJIANG WEIMIN ENERGY TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG WEIMIN ENERGY TECHNOLOGY Co Ltd
Priority date: 2011-02-24
Filing date: 2011-02-24
Publication date: 2011-08-31
Anticipated expiration: 2021-02-24

Abstract

The utility model mainly discloses a host energy saving device for a central air-conditioning centralized control system. The host energy saving device comprises a host and a terminal, wherein a water supply pipe and a return water pipe are connected between the host and the terminal. The host comprises a slide valve adjustment module used for adjusting operation power and an adjustment valve used for adjusting water flow. The water supply pipe and the return water pipe are respectively provided with a supplied water temperature sensor and a return water temperature sensor which are used for detecting temperature in the pipes. The detected signals of the supplied water temperature sensor and the return water temperature sensor are sent to a central air-conditioning centralized control system, the control end of the central air-conditioning centralized control system is connected with the adjustment valve of the host, and the host is connected with the data end of the central air-conditioning centralized control system to perform data communication. The host energy saving device changes the operation state of the host of a central air conditioner according to the real operation condition of the air conditioner, thereby realizing the optimized energy saving control.

Description

Central air-conditioning centralized control system main engine energy-saving device

Technical field

The utility model relates to the air conditioner energy saving technical field, is applicable to that particularly the energy-saving central air-conditioning centralized control system main engine energy-saving device in large-scale places such as hospital, market, school is relevant.

Background technology

Central air-conditioning is an indispensable facility in the life now, some large-scale public places particularly, as hospital, market, school, station or the like, central air-conditioning is compared with indoor common air-conditioning, main advantage can indoor temperature remain in the desired scope exactly, can make room air fresh again, help healthy.

But because central air-conditioning power is big, power consumption is big, and the payment electricity charge become user's a huge spending.Such as hospital, air-conditioning all can not be left in most places, and operating room, ward, with regard to clinic etc. all are to keep suitable temperature basically throughout the year, and according to budget, the central air-conditioning energy consumption accounts for about 60% of whole building energy consumption, and energy consumption is very huge.

Owing to flow at indoor occupant, various factors such as temperature fluctuation, the central air conditioner system refrigerating capacity has tangible workload demand dynamic change, and the lift (power) of water pump all has sizable allowance when design.So it is necessary and the Remarkable Energy Saving effective measures that whole central air conditioner system is carried out reducing energy consumption.

So the inventor is exactly under this industry technology environment, develop central air-conditioning centralized control system main engine energy-saving device, this case produces thus.

Summary of the invention

The purpose of this utility model is to provide a kind of central air-conditioning centralized control system main engine energy-saving device, changes the running status of central air-conditioning centralized control system main frame according to actual air-conditioning operating position, realizes the optimization Energy Saving Control.

What to achieve these goals, the utility model adopted is that technical scheme is:

Central air-conditioning centralized control system main engine energy-saving device comprises main frame, end, is connected with feed pipe and return pipe between main frame and the end; Main frame comprises guiding valve adjustment module of regulating operate power and the control valve of regulating discharge; On feed pipe and return pipe, be separately installed with the supply water temperature sensor and the return water temperature sensor of temperature in the detector tube; The detection signal of supply water temperature sensor and return water temperature sensor is sent in the central air-conditioning centralized control system, and the control end of central air-conditioning centralized control system connects the control valve of main frame, and data terminal is connected between main frame and the central air-conditioning centralized control system, carries out data communication.

At least 2 of described host numbers form the parallel operation state.

After adopting such scheme, the utility model is by gathering the temperature difference of feed pipe and return pipe, the actual operating position of grasping terminal air-conditioning, use data to feed back on the main frame reality by the central air-conditioning centralized control system, the guiding valve adjustment module 7 of main frame is adjusted to the operate power of main frame the state that conforms to actual consumption, the central air-conditioning centralized control system obtains the running status of main frame, judges whether main frame operation has redundancy, the unlatching of final main control system control valve or close.

Description of drawings

Fig. 1 is the structural representation of the utility model preferred embodiment;

Fig. 2 is the central air-conditioning centralized control system connection diagram of the utility model preferred embodiment.

The specific embodiment

In conjunction with the accompanying drawings, the utility model is described in further details.

Central air-conditioning centralized control system main engine energy-saving device mainly comprises main frame 1, end 2, feed pipe 3, return pipe 4, central air-conditioning centralized control system 5, control valve 6.

Main frame 1 is the cool-heat-exchanger of central air-conditioning, is the core component of the energy.Main frame 1 inside has guiding valve adjustment module 7, guiding valve adjustment module 7 is slide-valve gears, utilize the spool in the guiding valve to move the formation hydraulic control, the movable signal of guiding valve adjustment module 7 spools is to regulate according to actual air-conditioning operating position, thereby regulates main frame 1 running frequency automatically.What the utility model used is the water system main frame, and the water system main frame generally comprises water-cooling screw rod machine, air-cooled heat pump, lithium bromide refrigerator, water resource heat pump, earth source heat pump main frame.Main frame 1 has the opening and closing that a control valve 6 is realized main frame 1.

Terminal 2 is the end equipments that discharge cold air or hot gas in indoor room, and there is multiple structure in this device on the market existing, such as fan coil pipe structure, air-conditioning punch-out equipment structure etc.Between main frame 1 and terminal 2, adopt feed pipe 3 to be connected, the chilled water that refrigerating water pump 8 drives pipe interior generally is installed on return pipe 4 circulates with return pipe 4.Supply water temperature sensor 31 is installed on feed pipe 3, detects the temperature that supplies water in the feed pipe.Return water temperature sensor 41 is installed on return pipe 4, detects the temperature of backwater in the return pipe.

The utility model is based on existing electron controls technology, so central air-conditioning centralized control system 5 is exactly a data processing centre of the present utility model, can adopt the processor of all kinds of forms in the present electron trade to realize.The input of central air-conditioning centralized control system 5 is connected with supply water temperature sensor 31 and return water temperature sensor 41, gathers supply water temperature and return water temperature signal, and the output of central air-conditioning centralized control system 5 connects control valve 6, the unlatching of control and regulation valve 6 or close.Central air-conditioning centralized control system 5 docks with data terminal between the main frame 1, carries out data communication.

Main frame 1 has 4 altogether in the utility model, according to parallel-connection structure, for end freezes or heats.When at first central air-conditioning brought into operation, All hosts 1 all was an open mode.Central air-conditioning centralized control system 5 is gathered supply water temperature and return water temperatures, and the difference by these two temperature draws terminal use amount this moment.When freezing, set a lower supply water temperature such as summer, pass through cold exchange endways after, return water temperature uprises, and when return water temperature is high more, illustrates that terminal use amount is big more.When heating winter, just the opposite, return water temperature is low more, shows that terminal use amount is big more.After central air-conditioning centralized control system 5 obtains this signal, feed back on the main frame 1, each main frame 1 carries a guiding valve adjustment module 7, behind the temperature signal that main frame 1 obtains feeding back, is regulated automatically under the frequency that main frames 1 conform to actual power by guiding valve adjustment module 7 and to work.Generally has 0%, 25%, 50%, 100% 4 level of power consumption, the corresponding different brackets of the temperature difference of detection at main frame 1.

The power rating of main frame 1 is sent in the central air-conditioning centralized control system 5 by data wire again, central air-conditioning centralized control system 5 is through judging, when four host computer 1 all is under the power consumption state (such as≤50%) work, central air-conditioning centralized control system 5 is just controlled one of them control valve 6, close wherein main frame 1, and then continue to detect.When the All hosts 1 of residue work still is under the low power consumpting state, central air-conditioning centralized control system 5 continues to close one, can bear terminal load up to main frame 1 with the operation of suitable power consumption.

On the contrary, if in the central air-conditioning running status, main frame 1 operation has all reached 100% power consumption, then controls to adjust valve 6 again by central air-conditioning centralized control system 5 and opens, and opens a main frame 1, if it is excessive still to load, same again principle is opened a main frame 1.

The running status that the utility model can be regulated main frame 1 in real time according to terminal 2 actual operating position.Main frame 1 needn't all be in power consumption state always, saves the energy, and 1 year can energy-conservation about 50% than traditional central air-conditioning.

Claims

1. central air-conditioning centralized control system main engine energy-saving device is characterized in that: comprise main frame, end, be connected with feed pipe and return pipe between main frame and the end; Main frame comprises guiding valve adjustment module of regulating operate power and the control valve of regulating discharge; On feed pipe and return pipe, be separately installed with the supply water temperature sensor and the return water temperature sensor of temperature in the detector tube; The detection signal of supply water temperature sensor and return water temperature sensor is sent in the central air-conditioning centralized control system, and the control end of central air-conditioning centralized control system connects the control valve of main frame, and data terminal is connected between main frame and the central air-conditioning centralized control system, carries out data communication.

2. central air-conditioning centralized control system main engine energy-saving device as claimed in claim 1 is characterized in that: at least 2 of described host numbers form the parallel operation state.