CN111678241A - Intelligent operation system for monitoring big data of central air conditioner host - Google Patents
Intelligent operation system for monitoring big data of central air conditioner host Download PDFInfo
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- CN111678241A CN111678241A CN202010634453.5A CN202010634453A CN111678241A CN 111678241 A CN111678241 A CN 111678241A CN 202010634453 A CN202010634453 A CN 202010634453A CN 111678241 A CN111678241 A CN 111678241A
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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
- F24F11/32—Responding to malfunctions or emergencies
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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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
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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
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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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- 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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a big data monitoring intelligent operation system of a central air-conditioning host, which comprises a PLC, a man-machine exchange touch screen, a data communication module, a cloud data service center and a plurality of data acquisition modules, wherein the PLC is used for receiving a big data request sent by a user; the man-machine exchange touch screen is connected with the PLC; the data communication module is connected with the PLC; the cloud data service center is in wireless communication connection with the data communication module, the cloud data service center is provided with various data acquisition modules, can independently operate to acquire data without self-contained modules and protocols of various large brands, and can record and store the data, some data systems of an original machine can be compared and analyzed, the field operation and independent fault judgment of the central air conditioner can be further optimized, meanwhile, the cloud data service center can reasonably analyze various conditions occurring in the operation of various large brands through the comparison of the large data, the system configuration of the central air conditioner is continuously optimized, and the purposes of energy saving and efficient operation can be better achieved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a big data monitoring intelligent operation system of a central air conditioner host.
Background
The central air conditioning system is composed of one or more cold and heat source systems and a plurality of air conditioning systems, and the system is different from the traditional refrigerant type air conditioner, and the air is intensively treated (such as a single machine, VRV) to achieve the comfort requirement. The principle of liquid gasification refrigeration is adopted to provide the required cold energy for the air conditioning system so as to offset the heat load of the indoor environment; the heating system provides the air conditioning system with the required heat to offset the indoor environment cooling and heating load.
The central air-conditioning main unit is used as a main device with higher value in the whole central air-conditioning system, and has the following characteristics:
1. the technical density of the equipment is high, the requirements on professional knowledge of users and operation and maintenance personnel are high, the conditions of users and sites are difficult to achieve, after all installed central air-conditioning projects are debugged and operated by equipment manufacturers at present, no whole set of equipment can continuously observe the operation matching degree condition of a central air-conditioning host and the whole refrigerating and heating system, a large horse often pulls a trolley, or a plurality of hosts are fully opened to cause low operation efficiency, and the compressor is frequently started, stopped and lifted to cause the damage of the compressor.
2. The operation keeper of the user can not closely observe and record the operation data of the host equipment beside each host in 365 x 24 hours, the operation of the current central air-conditioning host has problems, and only advanced professional technicians can sensitively trace whether the individual data are abnormal or not. The number of high-level professional technicians is small, the central air conditioners are installed dispersedly, and the time and the labor are wasted when various instruments and equipment are carried on business trips.
3. The seller of the central air-conditioning equipment is influenced by the building characteristics of a user, the level of an installer and the use habit of the seller in the design and installation process, and the seller cannot be completely and strictly executed according to the design concept of a central air-conditioning host manufacturer, so that the matching degree of the host and the actual operation is poor, the equipment faults are more, and the problems are difficult to objectively find out if the problem is not monitored by a whole system.
4. When the central air conditioner is used by a client, the heat exchanger (a shell tube or a plate heat exchanger) is frozen due to unstable voltage, unbalanced phase current and bad water pump caused by power supply problems, so that damage and expansion are caused due to the fact that water enters through a perforation, refrigerant is leaked and the like cannot be found in time.
5. The main machine protection device is mostly an electronic product, and is easy to age and damage in a high-temperature high-humidity machine room or an open-air machine room operating environment, various sensors are distorted and cannot feed back real data of the main machine, and when a main control circuit board fails to restore to normal state by self, the key moment of failure in operation cannot play due protection role, so that major failure occurs in core components.
6. Although the central air-conditioning host is provided with various protection devices and equipment, the protection system of the host only aims at the protection of the host and cannot monitor the running states of a cooling water pump, a freezing water pump, a cooling tower fan or a cooling fan motor in real time.
7. Each host only has one set of control system and no backup system, and the host cannot be replaced when a fault occurs.
8. For a plurality of central air-conditioning hosts on the same system, most of the installation processes cannot be carried out by connecting a plurality of hosts for networking, and the hosts cannot be communicated with each other, so that automatic rotation operation cannot be carried out, and balanced operation cannot be carried out.
9. The self-contained system of the central air-conditioning host cannot quantitatively evaluate the health index condition of the host by self, and still requires professional technicians to go far to the field for detection and quantitative evaluation.
10. When the central air conditioner operates in spring or autumn and other transition seasons, the central air conditioner host often operates under low load, so that the operating efficiency is low, and the power consumption is high.
11. When the main machine is in fault, the central air-conditioning main machine can not automatically inform a use manager, a maintenance worker and an operation and maintenance contractor in the first time.
Therefore, there is a need to develop a solution to the above problems.
Disclosure of Invention
In view of the above, the present invention is directed to a system for monitoring big data of a central air conditioner host, which can solve the problems of troublesome management and high labor cost of operation of the current central air conditioner room.
In order to achieve the purpose, the invention adopts the following technical scheme:
a big data monitoring intelligent operation system of a central air conditioner host comprises a PLC, a man-machine exchange touch screen, a data communication module, a cloud data service center and a plurality of data acquisition modules; the man-machine exchange touch screen is connected with the PLC; the data communication module is connected with the PLC; the cloud data service center is in wireless communication connection with the data communication module, data received by the cloud data service center is manually analyzed on duty by professional engineers, the professional engineers have primary authority to perform operation scheme, system optimization and energy-saving customization, meanwhile, the cloud data service center is connected with a PC data client and a mobile terminal, the PC data client has secondary authority to perform operation key data printing and downloading, and the mobile terminal has tertiary authority to receive alarm information by adopting a WeChat Applet (APP); the plurality of data acquisition modules are all connected with a PLC (programmable logic controller), and comprise a pressure sensor, a refrigerant water content monitoring sensor, a water flow switch sensor, a four-way valve operation monitoring module, an exhaust superheat degree and suction superheat degree monitoring module, a temperature sensor, a current acquisition module, a voltage acquisition module, a sound acquisition module and a vibration induction module.
Preferably, the PLC is mitsubishi PLC.
Preferably, the man-machine exchange touch screen is a siemens man-machine exchange touch screen.
Preferably, the data communication module is a wireless communication module compatible with 2G, 3G, 4G and 5G signals.
Preferably, the PLC, the human-computer exchange touch screen, and the data communication module are integrated on a PCB.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and specifically, the technical scheme includes that:
the invention is provided with various data acquisition modules, can independently operate to acquire data without self-contained modules and protocols of various large brands, and can record and store the data, can call out comparison and analysis of some data systems of the original machine, can further optimize the field operation and independent fault judgment of the central air conditioner, and meanwhile, the invention can reasonably analyze various conditions occurring in the operation of various large brands by comparing the large data, continuously optimize the system configuration of the central air conditioner, and can better achieve the aim of energy-saving and efficient operation; and the system can realize remote monitoring and control, can give the management authority to an engineer of the central air-conditioning room for management according to a client protocol or give the management authority to an automatic control, and can well solve the problem of overhigh labor cost of the current central air-conditioning room management and operation.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:
drawings
FIG. 1 is a block diagram of the structure of the preferred embodiment of the present invention.
The attached drawings indicate the following:
11. PLC 12, man-machine exchange touch screen
13. Data communication module 14 and cloud data service center
15. Data acquisition module 16 and PC data client
17. Mobile terminal 20 and PCB
Detailed Description
Referring to fig. 1, a specific structure of a preferred embodiment of the present invention is shown, which includes a PLC11, a man-machine exchange touch screen 12, a data communication module 13, a cloud data service center 14, and a plurality of data acquisition modules 15.
The PLC11 is Mitsubishi PLC, can also be other types of PLCs, and is not limited; the man-machine exchange touch screen 12 is connected with a PLC11, and the man-machine exchange touch screen 12 may be a siemens man-machine exchange touch screen, or may be other types of man-machine exchange touch screens, which is not limited to the above. The data communication module 13 is connected with the PLC11, and the data communication module 13 is a wireless communication module compatible with 2G, 3G, 4G and 5G signals; and the PLC11, the man-machine exchange touch screen 12 and the data communication module 13 are integrated on a PCB 20, so that the installation and the use are convenient.
The cloud data service center 14 is in wireless communication connection with the data communication module 13, data received by the cloud data service center 14 is manually analyzed on duty by professional engineers, the professional engineers have primary authority to perform operation scheme, system optimization and energy-saving customization, meanwhile, the cloud data service center 14 is connected with a PC data client 16 and a mobile terminal 17, the PC data client 16 has secondary authority to perform operation key data printing and downloading, and the mobile terminal 17 has tertiary authority to receive alarm information by adopting a WeChat applet APP; PLC11 is all connected to these a plurality of data acquisition modules 15, and these a plurality of data acquisition modules 15 are including pressure sensor, refrigerant water content monitoring sensor, water flow switch sensor, cross valve operation monitoring module, exhaust superheat degree and inhale superheat degree monitoring module, temperature sensor, current collection module, voltage collection module, sound collection module and vibrations response module.
Detailed description the working principle of the present embodiment is as follows:
the pressure sensor senses the system pressure of the central air-conditioning host, if the system of the central air-conditioning has leakage, whether the system has refrigerant leakage fault is judged according to the air temperature and the type calculation of the pre-input refrigerant, if the system has the hidden trouble of the problem, the system automatically uploads the hidden trouble of the problem to the PLC11 and the data communication module 13, and warning, short message, telephone notification or emergency shutdown is carried out according to the level; when the central air-conditioning host machine is in operation, if the high pressure is higher than the normal system parameter value or the low pressure is lower than the normal system parameter value, warning, short message, telephone notification or emergency shutdown is carried out according to the level.
This refrigerant water content monitoring sensor monitors the inside refrigerant water content of central air conditioning host computer constantly, if the water content appears too high, then combines pressure sensor logical operation, and whether automatic judgement has appeared the heat exchanger and has worn the water trouble, if have and appear wearing the water trouble, then carry out emergency shutdown and ensure that heavy major component such as compressor obtains abundant protection and does not appear intaking and burn out's big trouble.
The water flow switch sensor is used for carrying out system monitoring on the water flow of the central air conditioner, ensuring that the water flow of the system reaches the necessary running flow of the host, and ensuring that the host of the central air conditioner is in a good running state.
The four-way valve operation monitoring module (mainly used for the air-cooled heat pump host) monitors four-way pipelines of the central air conditioner in real time, ensures that the four-way valve of the central air conditioner host is in a normal operation state, and can feed back signals at the first time to shut down the host if the four-way valve has operation faults or blow-by gas, thereby avoiding the compressor coil from being burnt down due to blow-by gas.
The exhaust superheat and suction superheat monitoring module is used for carrying out real monitoring and function calculation on the exhaust superheat and suction superheat of a compressor of the central air-conditioning host, and if the exhaust superheat is too large or too small, warning, short message, telephone notification or emergency shutdown is carried out according to the level.
The temperature sensor monitors the temperatures of the evaporator and the condenser in real time, and if the temperatures are abnormal, warning, short messages, telephone notification or emergency shutdown is carried out according to the level.
The current acquisition module monitors three-phase current at the compressor end in real time, and if the interphase imbalance reaches a set value or the current exceeds the set value, warning, short message, telephone notification or emergency shutdown is carried out according to the level.
The voltage acquisition module monitors the three-phase voltage at the compressor end in real time, and if the interphase imbalance reaches a set value or the voltage is lower than or exceeds a limit value of a central air-conditioning host manufacturer, warning, short message, telephone notification or emergency shutdown is carried out according to the level.
The sound collection module monitors the running noise of the main machine of the central air conditioner in real time, and if the running noise is abnormal (whether the centrifugal main machine has surge or not is judged), warning, short message, telephone notification or emergency shutdown is carried out according to the level.
The vibration sensing module monitors the host operation vibration index of the central air conditioner in real time, and if the operation vibration is ultrahigh and abnormal, the host operation vibration index carries out warning, short message, telephone notification or emergency shutdown according to the level.
The data are uploaded to the cloud data service center 14 in real time (uploading is performed if the data are changed and not uploading is performed if the data are not changed) through the data communication module 13 (compatible with 2G, 3G, 4G and 5G signals), the cloud data service center 14 can store running data with unlimited time (continuous expansion is performed according to the situation), and an algorithm analyst of the cloud data service center 14 is combined to calculate core data, so that the central air-conditioning host machine is ensured to process a good running state all the time, the service life is prolonged, and the purposes of reducing power consumption and running management cost are achieved.
The design key points of the invention are as follows: the invention is provided with various data acquisition modules, can independently operate to acquire data without self-contained modules and protocols of various large brands, and can record and store the data, can call out comparison and analysis of some data systems of the original machine, can further optimize the field operation and independent fault judgment of the central air conditioner, and meanwhile, the invention can reasonably analyze various conditions occurring in the operation of various large brands by comparing the large data, continuously optimize the system configuration of the central air conditioner, and can better achieve the aim of energy-saving and efficient operation; and the system can realize remote monitoring and control, can give the management authority to an engineer of the central air-conditioning room for management according to a client protocol or give the management authority to an automatic control, and can well solve the problem of overhigh labor cost of the current central air-conditioning room management and operation.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (5)
1. The utility model provides a big data monitoring wisdom operating system of central air conditioning host computer which characterized in that: the system comprises a PLC, a man-machine exchange touch screen, a data communication module, a cloud data service center and a plurality of data acquisition modules; the man-machine exchange touch screen is connected with the PLC; the data communication module is connected with the PLC; the cloud data service center is in wireless communication connection with the data communication module, data received by the cloud data service center is manually analyzed on duty by professional engineers, the professional engineers have primary authority to perform operation scheme, system optimization and energy-saving customization, meanwhile, the cloud data service center is connected with a PC data client and a mobile terminal, the PC data client has secondary authority to perform operation key data printing and downloading, and the mobile terminal has tertiary authority to receive alarm information by adopting a WeChat Applet (APP); the plurality of data acquisition modules are all connected with a PLC (programmable logic controller), and comprise a pressure sensor, a refrigerant water content monitoring sensor, a water flow switch sensor, a four-way valve operation monitoring module, an exhaust superheat degree and suction superheat degree monitoring module, a temperature sensor, a current acquisition module, a voltage acquisition module, a sound acquisition module and a vibration induction module.
2. The intelligent operation system for big data monitoring of central air-conditioning host computer as claimed in claim 1, wherein: the PLC is a Mitsubishi PLC.
3. The intelligent operation system for big data monitoring of central air-conditioning host computer as claimed in claim 1, wherein: the man-machine exchange touch screen is a Siemens man-machine exchange touch screen.
4. The intelligent operation system for big data monitoring of central air-conditioning host computer as claimed in claim 1, wherein: the data communication module is a wireless communication module compatible with 2G, 3G, 4G and 5G signals.
5. The intelligent operation system for big data monitoring of central air-conditioning host computer as claimed in claim 1, wherein: the PLC, the man-machine exchange touch screen and the data communication module are integrated on a PCB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010634453.5A CN111678241A (en) | 2020-07-02 | 2020-07-02 | Intelligent operation system for monitoring big data of central air conditioner host |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010634453.5A CN111678241A (en) | 2020-07-02 | 2020-07-02 | Intelligent operation system for monitoring big data of central air conditioner host |
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| CN111678241A true CN111678241A (en) | 2020-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465288A (en) * | 2021-04-22 | 2021-10-01 | 苏州新亚科技有限公司 | Early warning system of refrigeration equipment and working method thereof |
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2020
- 2020-07-02 CN CN202010634453.5A patent/CN111678241A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113465288A (en) * | 2021-04-22 | 2021-10-01 | 苏州新亚科技有限公司 | Early warning system of refrigeration equipment and working method thereof |
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