CN205593127U - Poor central air conditioning water circulating system energy -saving control system of constant temperature - Google Patents
Poor central air conditioning water circulating system energy -saving control system of constant temperature Download PDFInfo
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- CN205593127U CN205593127U CN201620185881.3U CN201620185881U CN205593127U CN 205593127 U CN205593127 U CN 205593127U CN 201620185881 U CN201620185881 U CN 201620185881U CN 205593127 U CN205593127 U CN 205593127U
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Abstract
The utility model relates to an intelligent control field of air conditioner, concretely relates to poor central air conditioning water circulating system energy -saving control system of constant temperature, including the PLC controller to and the temperature sensor, water pump drive control, man -machine interface device, alarm device, the protection device that all are connected with the PLC controller, wherein be equipped with delay relay in the water pump drive control. The utility model discloses accessible temperature sensor real time monitoring central air conditioning water circulating system's the temperature of intaking, leaving water temperature to and outdoor temperature and indoor temperature, and the PLC controller with predetermine control parameter contrast back, according to comparison results, send control command to the water pump drive control, and the rotational speed of vector converter control water pump is controlled to the water pump drive control delay relay's schedule time after, thereby adjusts the water pump consumption, play the effect of energy saving.
Description
Technical field
This utility model relates to the field of intelligent control of air-conditioning, is specifically related to a kind of energy-conservation control of constant difference water circulation system of central air conditioning
System processed.
Background technology
Central air-conditioning is that in modern architecture, indispensable energy consumption runs system.Central air conditioner system is providing comfortable life to people
Live and while working environment, consumed again the substantial amounts of energy.According to statistics, China's building energy consumption accounts for energy total flow
30%.In the building having central air-conditioning, the energy consumption of central air-conditioning accounts for the 70% of total energy consumption, and in becoming of increasing year by year
Gesture.Therefore, the most efficiently utilize the energy of central air conditioner system and energy-conservation just become problem in the urgent need to address.
Properly functioning central air conditioner system, its power consumption mainly has two aspects: partly in order to supply airhandling equipment is cold
The Cooling and Heat Source power consumption of amount and heat；On the other hand it is to overcome the power needed for flow resistance to carry air and water, blower fan and water pump
Power consumption.The energy consumption of central air conditioner system is affected by many factors, and many links of running have conservation measures, therefore, and central hollow
Regulation can be a comprehensive engineering.Major part building only has tens day time central air-conditioning to be in peak load in 1 year,
Central air-conditioning refrigeration duty is among dynamically change all the time, as various in morning and evening every day, climatic condition, the volume of the flow of passengers, activity description etc.
The change of factor, and the maximum load capability of central air conditioner system is the hottest according to weather, the condition of load maximum designs,
There is the biggest well-to-do amount, but actually system seldom works under these maximum conditions, according to relevant statistics, air-conditioning sets root
The time of standby 97% operates in the fluctuation of below 70% load, so actual load always can not reach at full capacity, particularly cold air demand
In the case of Shao, main unit load amount is low, and in order to ensure have preferable running status and higher operational efficiency, main frame can be necessarily
Scope loads and unloading according to the change of load, but the water circulation system cooling water pump matched therewith and chilled water pump are still at height
Run under load condition, can bring a series of (pump power is by 1.2 times of apolegamys of peak value refrigeration duty correspondence discharge)
Problem:
1. discharge crosses the water inlet of ambassador's water circulation system cold water and backwater temperature difference reduces, and is degrading the working condition of main frame, causes master
Machine heat exchanger effectiveness declines, and causes extra energy loss.
2. excessive due to water-aspirator pressure, be the most all by adjust the valve opening on pipeline regulate water circulation system cooling water and
Chilled-water flow, therefore also exists the biggest energy loss on valve.
The most traditional water pump and motor start-stop control to realize soft to open, soft stop, at starting of pump station with when stopping, it may appear that water hammer
Phenomenon, causes greater impact to pipe network, increases the evaporating, emitting, dripping or leaking of liquid or gas phenomenon of supply lines valve.
4. low due to central air-conditioner cooling water, chilled water system operational efficiency, energy consumption is relatively big and belongs to longtime running, carries out energy-conservation skill
Art transformation is the most necessary.
Utility model content
The purpose of this utility model is to provide a kind of constant difference water circulation system of central air conditioning energy-saving control system, solves existing
Water pump of air conditioner energy consumption is unreasonable, causes energy dissipation, and rate of heat exchange declines, and is easily damaged asking of air conditioner water circulating system parts
Topic.
For solving above-mentioned technical problem, this utility model by the following technical solutions:
A kind of constant difference water circulation system of central air conditioning energy-saving control system,
Including temperature sensor, it is connected with PLC, gathers the inflow temperature of water circulation system of central air conditioning respectively, go out
Coolant-temperature gage, and outdoor temperature and indoor temperature, and temperature signal is transferred to and PLC；
Drive control piece including water pump, be connected with PLC, be inside provided with time-delay relay, send according to PLC
Control command, after predetermined delay time, control pump rotary speed by vector frequency converter；
Including human-computer interface device, it is connected with PLC, is arranged on Air-Conditioning Control Panel, be used for inputting default control
Parameter, preset alarm value, preset security value, show the inflow temperature of real-time central air conditioner water circulating system, leaving water temperature, with
And outdoor temperature and indoor temperature；
Including PLC, temperature parameter, according to the temperature parameter received and order, is joined by PLC with default control
Number contrast, sends the corresponding command according to comparing result；
Including alarm device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined alarming value, sends alarm command according to PLC and send alarm signal；
Including protection device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined safety value, sending according to PLC ceases and desist order disconnects the operating circuit of central air-conditioning.
Further, also including wireless signal transceiver, wireless signal transceiver passes through router access network based on ethernet and movement
Control device signal to connect.
Further, also include voltage sensor and the current sensor being all connected with PLC, described voltage sensor and
Current sensor gathers supply voltage data and the current data of water circulation system of central air conditioning, and by voltage data and current data
It is sent to PLC.
Further, a kind of constant difference water circulation system of central air conditioning energy-saving control system: described alarm device include buzzer and
Signal prompt lamp.
Compared with prior art, the beneficial effects of the utility model are: can monitor central hollow water transfer in real time by temperature sensor and follow
The inflow temperature of loop systems, leaving water temperature, and outdoor temperature and indoor temperature, and in PLC and preset control parameters pair
After Bi, according to comparing result, drive control piece to send control command to water pump, and water pump drives control making a reservation at time-delay relay
Control the rotating speed of vector frequency converter regulation water pump after time, thus adjust pump consumption, play the effect saving the energy.
Accompanying drawing explanation
Fig. 1 is the connection frame of this utility model a kind of constant difference one embodiment of water circulation system of central air conditioning energy-saving control system
Figure.
Fig. 2 is the connection frame of this utility model a kind of constant difference water circulation system of central air conditioning another embodiment of energy-saving control system
Figure.
Fig. 3 is the connection frame of this utility model a kind of constant difference water circulation system of central air conditioning another embodiment of energy-saving control system
Figure.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
This utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this practicality
Novel, it is not used to limit this utility model.
Fig. 1 shows an embodiment of this utility model a kind of constant difference water circulation system of central air conditioning energy-saving control system: one
Kind constant difference water circulation system of central air conditioning energy-saving control system:
Including temperature sensor, it is connected with PLC, gathers the inflow temperature of water circulation system of central air conditioning respectively, go out
Coolant-temperature gage, and outdoor temperature and indoor temperature, and temperature signal is transferred to and PLC；
Drive control piece including water pump, be connected with PLC, be inside provided with time-delay relay, send according to PLC
Control command, after predetermined delay time, control pump rotary speed by vector frequency converter；
Including human-computer interface device, it is connected with PLC, is arranged on Air-Conditioning Control Panel, be used for inputting default control
Parameter, preset alarm value, preset security value, show the inflow temperature of real-time central air conditioner water circulating system, leaving water temperature, with
And outdoor temperature and indoor temperature；
Including PLC, temperature parameter, according to the temperature parameter received and order, is joined by PLC with default control
Number contrast, sends the corresponding command according to comparing result；
Including alarm device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined alarming value, sends alarm command according to PLC and send alarm signal；
Including protection device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined safety value, sending according to PLC ceases and desist order disconnects the operating circuit of central air-conditioning.
Fig. 2 shows another embodiment of this utility model a kind of constant difference water circulation system of central air conditioning energy-saving control system:
A kind of constant difference water circulation system of central air conditioning energy-saving control system,
Including PLC, according to the temperature parameter received and order, temperature parameter is contrasted with preset control parameters, root
The corresponding command is sent according to comparing result；
Including temperature sensor, it is connected with PLC, gathers the inflow temperature of water circulation system of central air conditioning respectively, go out
Coolant-temperature gage, and outdoor temperature and indoor temperature, and be transferred to and PLC；
Driving control piece including water pump, be connected with PLC, the control command sent according to PLC, by vowing
Amount Frequency Converter Control pump rotary speed；
Including human-computer interface device, it is connected with PLC, inputs preset control parameters, preset alarm value, preset security
Value, the acquisition inflow temperature of real-time central air conditioner water circulating system, leaving water temperature, and outdoor temperature and indoor temperature；
Including alarm device, being connected with PLC, the temperature parameter that PLC receives contrasts with preset control parameters
After difference more than predetermined alarming value time, send alarm command according to PLC and send alarm signal；
Including protection device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined safety value, sending according to PLC ceases and desist order disconnects the operating circuit of central air-conditioning；
Including wireless signal transceiver, wireless signal transceiver passes through router access network based on ethernet and mobile control device signal
Connect.
Fig. 3 shows another embodiment of this utility model a kind of constant difference water circulation system of central air conditioning energy-saving control system:
A kind of constant difference water circulation system of central air conditioning energy-saving control system,
Including PLC, according to the temperature parameter received and order, temperature parameter is contrasted with preset control parameters, root
The corresponding command is sent according to comparing result；
Including temperature sensor, it is connected with PLC, gathers the inflow temperature of water circulation system of central air conditioning respectively, go out
Coolant-temperature gage, and outdoor temperature and indoor temperature, and be transferred to and PLC；
Driving control piece including water pump, be connected with PLC, the control command sent according to PLC, by vowing
Amount Frequency Converter Control pump rotary speed；
Including human-computer interface device, it is connected with PLC, inputs preset control parameters, preset alarm value, preset security
Value, the acquisition inflow temperature of real-time central air conditioner water circulating system, leaving water temperature, and outdoor temperature and indoor temperature；
Including alarm device, being connected with PLC, the temperature parameter that PLC receives contrasts with preset control parameters
After difference more than predetermined alarming value time, send alarm command according to PLC and send alarm signal；
Including protection device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined safety value, sending according to PLC ceases and desist order disconnects the operating circuit of central air-conditioning.
Including the voltage sensor being all connected with PLC and current sensor, described voltage sensor and current sensor are adopted
The supply voltage data of collection water circulation system of central air conditioning and current data, and voltage data and current data are sent to PLC control
Device processed.
According to another embodiment of this utility model a kind of constant difference water circulation system of central air conditioning energy-saving control system, Yi Zhongheng
Temperature difference air-conditioning system water circulation system energy-saving control system: described alarm device includes buzzer and signal prompt lamp.
Operation principle of the present utility model is: can be monitored the water inlet temperature of water circulation system of central air conditioning in real time by temperature sensor
Degree, leaving water temperature, and outdoor temperature and indoor temperature, and after PLC contrasts with preset control parameters, according to contrast
As a result, drive control piece to send control command to water pump, and water pump drives control to control to vow after the scheduled time of time-delay relay
The rotating speed of amount converter regulation water pump, thus adjusts pump consumption, plays the effect saving the energy, and the work of time-delay relay phase
With can be prevented from temperature parameter when default control parameter is the most frequently beated, controlling vector frequency converter and the most frequently regulating water pump
Rotating speed, the situation of many degree losses.Alarm device and protection device are then to prevent whole water circulation system of central air conditioning from occurring
Fault causes water circulation system to continue high intensity or low-intensity work occurs unbalance, the problem that equipment causes damage.
This utility model is described by multiple explanatory embodiment the most of the present utility model, however, it should reason
Solving, those skilled in the art can be designed that a lot of other amendments and embodiment, and these amendments and embodiment will fall at this
Within the disclosed spirit of application and spirit.More specifically, in the range of disclosure, drawings and claims,
The building block of theme composite configuration and/or layout can be carried out multiple modification and improvement.Except to building block and/or layout
Outside the deformation carried out and improvement, to those skilled in the art, other purposes also will be apparent from.
Claims (4)
1. a constant difference water circulation system of central air conditioning energy-saving control system, it is characterised in that:
Including temperature sensor, it is connected with PLC, gathers the inflow temperature of water circulation system of central air conditioning respectively, go out
Coolant-temperature gage, and outdoor temperature and indoor temperature, and temperature signal is transferred to and PLC；
Drive control piece including water pump, be connected with PLC, be inside provided with time-delay relay, send according to PLC
Control command, after predetermined delay time, control pump rotary speed by vector frequency converter；
Including human-computer interface device, it is connected with PLC, is arranged on Air-Conditioning Control Panel, be used for inputting default control
Parameter, preset alarm value, preset security value, show the inflow temperature of real-time central air conditioner water circulating system, leaving water temperature,
And outdoor temperature and indoor temperature；
Including PLC, temperature parameter, according to the temperature parameter received and order, is joined by PLC with default control
Number contrast, sends the corresponding command according to comparing result；
Including alarm device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined alarming value, sends alarm command according to PLC and send alarm signal；
Including protection device, it is connected with PLC, the temperature parameter that PLC receives and preset control parameters pair
When difference after Bi is more than predetermined safety value, sending the work electricity of disconnection central air-conditioning of ceasing and desisting order according to PLC
Road.
A kind of constant difference water circulation system of central air conditioning energy-saving control system the most according to claim 1, it is characterised in that: also
Including wireless signal transceiver, wireless signal transceiver passes through router access network based on ethernet and mobile control device signal
Connect.
A kind of constant difference water circulation system of central air conditioning energy-saving control system the most according to claim 1, it is characterised in that: also
Including the voltage sensor being all connected with PLC and current sensor, described voltage sensor and current sensor are adopted
The supply voltage data of collection water circulation system of central air conditioning and current data, and voltage data and current data are sent to
PLC.
A kind of constant difference water circulation system of central air conditioning energy-saving control system the most according to claim 1, it is characterised in that: institute
State alarm device and include buzzer and signal prompt lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620185881.3U CN205593127U (en) | 2016-03-11 | 2016-03-11 | Poor central air conditioning water circulating system energy -saving control system of constant temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620185881.3U CN205593127U (en) | 2016-03-11 | 2016-03-11 | Poor central air conditioning water circulating system energy -saving control system of constant temperature |
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| CN205593127U true CN205593127U (en) | 2016-09-21 |
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ID=56929350
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620185881.3U Expired - Fee Related CN205593127U (en) | 2016-03-11 | 2016-03-11 | Poor central air conditioning water circulating system energy -saving control system of constant temperature |
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| Country | Link |
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| CN (1) | CN205593127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461892A (en) * | 2017-08-31 | 2017-12-12 | 北京军秀咨询有限公司 | A kind of energy-saving management system of central air conditioner |
| CN112665128A (en) * | 2020-12-17 | 2021-04-16 | 珠海格力电器股份有限公司 | Air conditioner refrigerator control method and device and air conditioner refrigerator |
-
2016
- 2016-03-11 CN CN201620185881.3U patent/CN205593127U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461892A (en) * | 2017-08-31 | 2017-12-12 | 北京军秀咨询有限公司 | A kind of energy-saving management system of central air conditioner |
| CN112665128A (en) * | 2020-12-17 | 2021-04-16 | 珠海格力电器股份有限公司 | Air conditioner refrigerator control method and device and air conditioner refrigerator |
| CN112665128B (en) * | 2020-12-17 | 2022-02-01 | 珠海格力电器股份有限公司 | Air conditioner refrigerator control method and device and air conditioner refrigerator |
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| 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: 20160921 Termination date: 20190311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |