CN111207487A - Cold station energy efficiency control system - Google Patents
Cold station energy efficiency control system Download PDFInfo
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- CN111207487A CN111207487A CN202010021884.4A CN202010021884A CN111207487A CN 111207487 A CN111207487 A CN 111207487A CN 202010021884 A CN202010021884 A CN 202010021884A CN 111207487 A CN111207487 A CN 111207487A
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- control system
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- cooling tower
- pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of centralized air conditioners, in particular to a cold station energy efficiency control system which comprises a data acquisition system, a central manager, a control terminal, a network controller, a control system and an alarm system, wherein the data acquisition system transmits data to the central manager, the central manager transmits the data to the control terminal through a network, the control terminal controls the network controller, the network controller controls the control system, and the control terminal is further connected with the alarm system through the network. The data acquisition system acquires information from the cooling host, the cooling tower and the outdoor environment, and the control system comprises a water chilling unit, a cooling pump, a freezing pump, a cooling tower, an electric butterfly valve and a fan. According to the invention, the control system carries out intelligent simulation calculation through the collected data to generate a control strategy suitable for running under the current condition of the cold station, so that the high-efficiency intelligent running of the equipment is achieved on the basis of meeting the requirement of the comfort level of a user.
Description
Technical Field
The invention relates to the technical field of central air conditioners, in particular to a cold station energy efficiency control system.
Background
At present, a cold station energy efficiency control system mainly monitors related equipment such as a cold and heat source machine room, a refrigeration host, a refrigeration pump, a cooling tower fan and the like, implements various machine room control strategies, and provides various control, monitoring and management information for humanized operators.
However, in the market, the number and performance of devices in a cold station are controlled basically according to engineering experiences accumulated in technologies of heating, ventilation, air conditioning and building automation, and intelligent control according to outdoor environmental parameters, indoor environmental parameters and the operating efficiency of the devices is lacked, so that the system cannot meet the actual requirements of users, cannot meet the requirements of customers or air conditioning systems, and cannot achieve corresponding effects, which is a phenomenon generally existing in the current market.
Disclosure of Invention
In view of the above, the present invention is directed to a system for controlling energy efficiency of a cold station, which monitors a cold source system in real timeThe system carries out online accurate energy efficiency monitoring on the running conditions of each cold station system, and the temperature and the humidity acquired outdoors, the temperature and the humidity of an indoor environment field and co are monitored2The air quality and the operation performance index of the air conditioning equipment of the cold station are analyzed in a unified mode, the control system carries out intelligent analog computation through collected data, and a control strategy suitable for operation under the current condition of the cold station is generated, so that efficient and intelligent operation of the equipment is achieved on the basis of meeting the requirement of the comfort level of a user.
The invention aims to provide a cold station energy efficiency control system which comprises a data acquisition system, a central manager, a control terminal, a network controller, a control system and an alarm system, wherein the data acquisition system transmits data to the central manager;
the data acquisition system acquires information from a cooling host, a cooling tower and outdoor environment, and the control system comprises a water chilling unit, a cooling pump, a freezing pump, a cooling tower, an electric butterfly valve and a fan;
the data acquisition system measures the temperature of the refrigeration host, the cooling tower and the outdoor environment through a thermometer, monitors the temperature, the pressure and the flow of water entering and leaving the refrigeration side of the refrigeration host and the cooling tower through a pressure sensor and an electromagnetic flowmeter, monitors the pressure and the flow of water returning and supplying of the cooling side, and further monitors the pressure and the water leaving flow of the water inlet and the water outlet of the refrigeration and cooling water pumps in the cooling tower and the refrigeration host. The data acquisition system also acquires the humidity of indoor and outdoor environmental fields and the information of Co2, and the point locations of the refrigeration host, the freezing water pump and the cooling water pump and the point location of the cooling tower.
Further, the central manager transmits data to the control terminal through a Gprs or 4G network, and the control terminal transmits control information to the network controller through the Gprs or 4G network. The data acquisition system transmits data to the central manager and the network controller transmits data to the control system, and the RF wireless transmitting module is adopted to transmit and interact data.
Furthermore, the control system protects the normal operation of the equipment by controlling the starting sequence to be a cooling tower fan, a cooling water electric butterfly valve, a cooling pump, a freezing pump and a refrigerating unit and controlling the shutdown sequence to be the refrigerating unit and closing the freezing pump, the cooling water electric butterfly valve and the cooling tower fan in a delayed mode, and the normal operation of the equipment can be protected by opening or closing the next equipment after the opening and closing of the related equipment are confirmed by the control system device, meanwhile, when a fault occurs in the operation process, the data is abnormal, and the control terminal automatically stops operating and gives an alarm to the alarm system.
Further, the control terminal automatically calculates the actually required cold load quantity of the tail end according to the supply and return water temperature and flow of the chilled water and the running condition of the unit. The running number of the water chilling units is automatically adjusted according to the actually required cooling load, and the purpose of optimal energy conservation is achieved. The running time balance of each unit and the water pump is realized: the running sequence of the units is automatically switched according to requirements, the running time of each unit is recorded in an accumulated mode, the unit with the shortest running time and the highest energy efficiency is automatically selected, the running time of each unit is basically equal, and the service life of each unit is prolonged.
Furthermore, the cooling water temperature is controlled, the running number of fans or the running speed of the fans of the cooling tower is automatically controlled according to the cooling water temperature, and the cooling water temperature is controlled within a set range. Frequency conversion control of the cooling water pump: the control system automatically adjusts the frequency of the cooling water pump according to the signal provided by the cooling water supply and return water temperature sensor, so that the temperature of the cooling water inlet and outlet water is in a set range. The fault alarm comprises the alarm of the temperature and the pressure of a water system, the fault alarm of a water chilling unit, a freezing/cooling water pump, a cooling tower (fan), a hot water unit, a hot water circulating pump and the like.
Further, for the operation of the safety and stability of the realization equipment, this system is provided with chain protect function: the method comprises the following specific steps:
the boot sequence is as follows: the cooling tower fan- > cooling water electric butterfly valve- > cooling pump- > refrigerating unit.
Shutdown sequence: the refrigerating unit- > closes the refrigeration pump- > cools the pump- > cooling water electric butterfly valve- > cooling tower fan in a delayed mode.
The on/off of the related equipment is confirmed by the energy-saving control system device of the air-conditioning cold and heat source system, and then the next equipment can be turned on/off, such as
And when a fault occurs, the energy-saving control system device of the air conditioner cold and heat source system automatically stops and gives an alarm.
According to the cold station energy efficiency control system, the real-time monitoring cold source system carries out online accurate energy efficiency monitoring on the running condition of each cold station system, and the temperature and humidity acquired outdoors, the temperature and humidity of an indoor environment field and co are measured2The air quality and the operation performance index of the air conditioning equipment of the cold station are analyzed in a unified mode, the control system carries out intelligent analog computation through collected data, and a control strategy suitable for operation under the current condition of the cold station is generated, so that efficient and intelligent operation of the equipment is achieved on the basis of meeting the requirement of the comfort level of a user.
Drawings
FIG. 1 is a block diagram of a cold station energy efficiency control system of the present invention;
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, and it is to be understood that the described embodiments are only a few embodiments of the present invention, rather than the entire embodiments, and that all other embodiments obtained by those skilled in the art based on the embodiments in the present application without inventive work fall within the scope of the present application.
As shown in fig. 1, the energy efficiency control system for a cold station of the present invention includes a data acquisition system, a central manager, a control terminal, a network controller, a control system, and an alarm system, where the data acquisition system transmits data to the central manager, the central manager transmits data to the control terminal through a network, the control terminal controls the network controller, the network controller controls the control system, and the control terminal is further connected to the alarm system through a network;
the data acquisition system acquires information from a cooling host, a cooling tower and outdoor environment, and the control system comprises a water chilling unit, a cooling pump, a freezing pump, a cooling tower, an electric butterfly valve and a fan;
the data acquisition system measures the temperature of the refrigeration host, the cooling tower and the outdoor environment through a thermometer, monitors the temperature, the pressure and the flow of water entering and leaving the refrigeration side of the refrigeration host and the cooling tower through a pressure sensor and an electromagnetic flowmeter, monitors the pressure and the flow of water returning and supplying of the cooling side, and further monitors the pressure and the water leaving flow of the water inlet and the water outlet of the refrigeration and cooling water pumps in the cooling tower and the refrigeration host. The data acquisition system also acquires the humidity of indoor and outdoor environmental fields and the information of Co2, and the point locations of the refrigeration host, the freezing water pump and the cooling water pump and the point location of the cooling tower.
In this embodiment, the central manager transmits data to the control terminal through the Gprs or 4G network, and the control terminal transmits control information to the network controller through the Gprs or 4G network. The data acquisition system transmits data to the central manager and the network controller transmits data to the control system, and the RF wireless transmitting module is adopted to transmit and interact data.
In this embodiment, the control system protects the normal operation of the equipment by controlling the start-up sequence to be the cooling tower fan, the cooling water electric butterfly valve, the cooling pump, the freezing pump and the refrigerating unit, and the shutdown sequence to be the refrigerating unit, and closing the freezing pump, the cooling water electric butterfly valve and the cooling tower fan in a delayed manner, and the normal operation of the equipment can be protected by opening or closing the next equipment after the opening and closing of the related equipment is confirmed by the control system device, and meanwhile, when a fault occurs in the operation process, the data is abnormal, and the control terminal automatically stops operating and gives an alarm to the alarm system.
In the embodiment, the control terminal automatically calculates the actually required cooling load at the tail end according to the supply and return water temperature and flow of the chilled water and the running condition of the unit. The running number of the water chilling units is automatically adjusted according to the actually required cooling load, and the purpose of optimal energy conservation is achieved. The running time balance of each unit and the water pump is realized: the running sequence of the units is automatically switched according to requirements, the running time of each unit is recorded in an accumulated mode, the unit with the shortest running time and the highest energy efficiency is automatically selected, the running time of each unit is basically equal, and the service life of each unit is prolonged.
In this embodiment, the cooling water temperature is controlled by automatically controlling the number of fans or the operating speed of the fans of the cooling tower based on the cooling water temperature, and the cooling water temperature is controlled within a set range. Frequency conversion control of the cooling water pump: the control system automatically adjusts the frequency of the cooling water pump according to the signal provided by the cooling water supply and return water temperature sensor, so that the temperature of the cooling water inlet and outlet water is in a set range. The fault alarm comprises the alarm of the temperature and the pressure of a water system, the fault alarm of a water chilling unit, a freezing/cooling water pump, a cooling tower (fan), a hot water unit, a hot water circulating pump and the like.
In this embodiment, in order to realize the safe and stable operation of the device, this system is provided with chain protect function: the method comprises the following specific steps:
the boot sequence is as follows: the cooling tower fan- > cooling water electric butterfly valve- > cooling pump- > refrigerating unit.
Shutdown sequence: the refrigerating unit- > closes the refrigeration pump- > cools the pump- > cooling water electric butterfly valve- > cooling tower fan in a delayed mode.
The on/off of the related equipment is confirmed by the energy-saving control system device of the air-conditioning cold and heat source system, and then the next equipment can be turned on/off, such as
And when a fault occurs, the energy-saving control system device of the air conditioner cold and heat source system automatically stops and gives an alarm.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (5)
1. The cold station energy efficiency control system is characterized by comprising a data acquisition system, a central manager, a control terminal, a network controller, a control system and an alarm system, wherein the data acquisition system transmits data to the central manager;
the data acquisition system acquires information from a cooling host, a cooling tower and outdoor environment, and the control system comprises a water chilling unit, a cooling pump, a freezing pump, a cooling tower, an electric butterfly valve and a fan;
the data acquisition system measures the temperature of the refrigeration host, the cooling tower and the outdoor environment through a thermometer, monitors the temperature, the pressure and the flow of water entering and leaving the refrigeration side of the refrigeration host and the cooling tower through a pressure sensor and an electromagnetic flowmeter, monitors the pressure and the flow of water returning and supplying of the cooling side, and further monitors the pressure and the water leaving flow of the water inlet and the water outlet of the refrigeration and cooling water pumps in the cooling tower and the refrigeration host.
2. The cold station energy efficiency control system according to claim 1, wherein the data acquisition system further acquires information of humidity and temperature of indoor and outdoor environmental fields, and a point location of the refrigeration host, a point location of the chilled water pump, a point location of the cooling water pump, and a point location of the cooling tower.
3. The cold station energy efficiency control system according to claim 1, wherein the central manager transmits data to the control terminal through a Gprs or 4G network, and the control terminal transmits control information to the network controller through the Gprs or 4G network.
4. The cold station energy efficiency control system according to claim 1, wherein the data acquisition system transmits data to the central manager and the network controller transmits data to the control system by using the RF wireless transmission module for data transmission and interaction.
5. The energy efficiency control system for the cold station as claimed in claim 1, wherein the control system protects normal operation of the equipment by controlling the cooling tower fan, the cooling water electric butterfly valve, the cooling pump, the freezing pump and the refrigerating unit in the starting sequence and the refrigerating unit in the shutdown sequence, and closing the freezing pump, the cooling water electric butterfly valve and the cooling tower fan in the delayed sequence, and the next equipment can be opened or closed to protect normal operation of the equipment after the opening and closing of the related equipment are confirmed by the control system device, and meanwhile, when a fault occurs in the operation process, data is abnormal, the control terminal automatically stops operation and gives an alarm to the alarm system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010021884.4A CN111207487A (en) | 2020-01-09 | 2020-01-09 | Cold station energy efficiency control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010021884.4A CN111207487A (en) | 2020-01-09 | 2020-01-09 | Cold station energy efficiency control system |
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| CN111207487A true CN111207487A (en) | 2020-05-29 |
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| CN202010021884.4A Pending CN111207487A (en) | 2020-01-09 | 2020-01-09 | Cold station energy efficiency control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665134A (en) * | 2020-12-10 | 2021-04-16 | 珠海格力电器股份有限公司 | Central air conditioner room management and control method, device and equipment and central air conditioning system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375665A (en) * | 2001-03-20 | 2002-10-23 | 广东省科学院自动化工程研制中心 | Intelligent power saving system for central air conditioner |
| CN1629556A (en) * | 2003-12-19 | 2005-06-22 | 珠海福士得冷气工程有限公司 | Energy-saving central air conditioning system |
| CN102147143A (en) * | 2011-04-06 | 2011-08-10 | 深圳达实智能股份有限公司 | On-off optimization control method and device of central air-conditioning system |
| CN102645006A (en) * | 2012-05-07 | 2012-08-22 | 深圳市捷华深环保节能科技有限公司 | Energy-saving remote control system for central air conditioner and use method thereof |
| CN103727626A (en) * | 2012-10-11 | 2014-04-16 | 北京合创三众能源科技股份有限公司 | Ground source heat pump central air-conditioner remote monitoring system and method |
| CN106545930A (en) * | 2016-11-04 | 2017-03-29 | 广东汉维科技有限公司 | A kind of energy-efficient central air conditioner room and power-economizing method |
| CN208750950U (en) * | 2018-07-27 | 2019-04-16 | 南京绿耀节能科技有限公司 | Chilled water pump automatic regulating system based on end load and environmental parameter |
| CN110425697A (en) * | 2019-08-19 | 2019-11-08 | 广东美的暖通设备有限公司 | The control method and device of air conditioner, computer readable storage medium, air conditioner |
-
2020
- 2020-01-09 CN CN202010021884.4A patent/CN111207487A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375665A (en) * | 2001-03-20 | 2002-10-23 | 广东省科学院自动化工程研制中心 | Intelligent power saving system for central air conditioner |
| CN1629556A (en) * | 2003-12-19 | 2005-06-22 | 珠海福士得冷气工程有限公司 | Energy-saving central air conditioning system |
| CN102147143A (en) * | 2011-04-06 | 2011-08-10 | 深圳达实智能股份有限公司 | On-off optimization control method and device of central air-conditioning system |
| CN102645006A (en) * | 2012-05-07 | 2012-08-22 | 深圳市捷华深环保节能科技有限公司 | Energy-saving remote control system for central air conditioner and use method thereof |
| CN103727626A (en) * | 2012-10-11 | 2014-04-16 | 北京合创三众能源科技股份有限公司 | Ground source heat pump central air-conditioner remote monitoring system and method |
| CN106545930A (en) * | 2016-11-04 | 2017-03-29 | 广东汉维科技有限公司 | A kind of energy-efficient central air conditioner room and power-economizing method |
| CN208750950U (en) * | 2018-07-27 | 2019-04-16 | 南京绿耀节能科技有限公司 | Chilled water pump automatic regulating system based on end load and environmental parameter |
| CN110425697A (en) * | 2019-08-19 | 2019-11-08 | 广东美的暖通设备有限公司 | The control method and device of air conditioner, computer readable storage medium, air conditioner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665134A (en) * | 2020-12-10 | 2021-04-16 | 珠海格力电器股份有限公司 | Central air conditioner room management and control method, device and equipment and central air conditioning system |
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Application publication date: 20200529 |
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