CN212320021U - Intelligent combined control system of modular cold and hot water air conditioning unit - Google Patents
Intelligent combined control system of modular cold and hot water air conditioning unit Download PDFInfo
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- CN212320021U CN212320021U CN202020852508.5U CN202020852508U CN212320021U CN 212320021 U CN212320021 U CN 212320021U CN 202020852508 U CN202020852508 U CN 202020852508U CN 212320021 U CN212320021 U CN 212320021U
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Abstract
The utility model relates to a modularization cold and hot water air conditioning unit intelligence allies oneself with accuse system, gather office building indoor and outdoor regional humiture parameter, come accurate group control air conditioning unit operating power according to regional required cold (hot) air enthalpy value of office building and air conditioning unit's work efficiency, on the basis of data acquisition such as air conditioning unit operating temperature, pressure, flow, combine a series of parameters such as the height of building, orientation, material, heat load, indoor and outdoor humiture condition and user's use custom, utilize exclusive economize on electricity intelligent control program, establish the best operating mode of energy consumption, automatic tracking building load changes, realize dynamic prediction, adjust in advance, synchronous optimization, finally adjust central air conditioning temperature, pressure, flow isoparametric, make the power curve maximum approach actual load need the power curve under the circumstances that guarantees end system to requirements such as temperature, pressure, flow, the energy-saving effect of the air conditioner is pushed to the limit, and the purpose of optimizing and saving energy of the system is achieved.
Description
Technical Field
The utility model belongs to the technical field of central air conditioning, especially indicate a modularization hot and cold water air conditioning unit intelligence allies oneself with accuse system.
Background
Most office buildings, office buildings and the like use modular air-cooled cold (hot) water air conditioning units to provide cooling in summer and heating in winter, and in some regions, except spring and autumn, about two air conditioning units are stopped, and the air conditioning units have continuous working time of nearly 8 months all the year round.
The existing air conditioning unit is simple in control flow, only operates according to set power, does not consider the use condition of an air conditioning area, and cannot accurately control the operation of the air conditioning unit according to the required air enthalpy value. The power consumption of the air conditioning unit is high, and the requirement of energy conservation is not met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a accuse system is united to modularization hot and cold water air conditioning unit intelligence to it is simple to solve current central air conditioning unit control flow, leads to the problem of air conditioning unit's consumption height.
The utility model discloses a realize through following technical scheme:
the utility model provides a modularization hot and cold water air conditioning unit intelligence allies oneself with accuse system, includes:
a plurality of temperature and humidity sensors are arranged in an office building and used for acquiring temperature and humidity parameters of a set section in the office building in real time;
the intelligent fan coil temperature control box is connected with each air-conditioning fan coil controller in the office building and is used for collecting the starting number and power of the air-conditioning fan coils;
the PLC is respectively in electric signal connection with the temperature and humidity sensor and the intelligent fan coil temperature control box and is used for collecting and sorting real-time data collected by the temperature and humidity sensor and the intelligent fan coil temperature control box;
the central processing unit is connected with the PLC through bidirectional signals;
and the host controller of the modular air conditioning unit is respectively in electric signal connection with the air conditioning unit and the PLC processor, receives the control signal transmitted by the PLC processor and sends the control signal to the corresponding air conditioning unit.
At least one temperature and humidity sensor is arranged in each office area with an independent space in an office building, and temperature and humidity parameters in the office area are collected in real time;
a plurality of temperature and humidity sensors are arranged in a public interval in an office building, and temperature and humidity parameters in the public interval are collected in real time.
The number of the air conditioning units is one or more than one.
The control signals include, but are not limited to, a start-stop number signal, a start-stop sequence signal, a start-stop time signal and an operation power signal of the air conditioning unit.
The air conditioning unit is an air-cooled cold and hot water air conditioning unit.
Every air conditioning unit all is provided with temperature sensor, pressure sensor and flow sensor, temperature sensor pressure sensor reaches flow sensor all with modularization air conditioning unit host computer controller electricity signal connection.
The utility model has the advantages that:
according to the technical scheme, temperature and humidity parameters of an office area and a public area in an office building are collected, starting power of the starting number of fan coils in the office area is calculated, a central processing unit calculates a required air enthalpy value, the working principle of an air energy heat pump air conditioning system is combined, the smaller the difference of the air enthalpy values is, the higher the working efficiency of the air conditioning unit is, through a set of optimization algorithm, the running power of the air conditioning unit is accurately and group-controlled according to the cold (hot) air enthalpy value required by the office building area and the working efficiency of the air conditioning unit, electric energy can be greatly saved, the round-robin work of the air conditioning unit is controlled through control flow, the service life of the air conditioning unit can be.
The modular central air-conditioning optimization energy-saving control system comprehensively applies an intelligent group control technology, a data acquisition technology, a microprocessing technology, a PLC control technology, a frequency conversion control technology, a network communication technology and the like to form a unique intelligent power-saving control program. On the basis of data acquisition of the operating temperature, pressure, flow and the like of an air conditioning unit, a series of parameters such as the height, orientation, material, heat load, indoor and outdoor temperature and humidity conditions of a building, user use habits and the like are combined, a unique electricity-saving intelligent control program is utilized to establish an optimal energy consumption operating mode, building load change is automatically tracked, dynamic prediction, advanced adjustment and synchronous optimization are realized, parameters such as the temperature, the pressure, the flow and the like of a central air conditioner are finally adjusted, a power curve is made to be close to an actual load required power curve to the maximum extent under the condition that the requirements of a tail end system on the temperature, the pressure, the flow and the like are ensured, the energy-saving effect of the air conditioner is pushed to the maximum extent.
Drawings
Fig. 1 is a schematic topology diagram of the present invention.
Detailed Description
The technical solutions of the present invention are described in detail below by way of examples, which are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but should not be construed as limiting the technical solutions of the present invention.
As shown in fig. 1, the present application provides an intelligent joint control system for a modular cold and hot water air conditioning unit, comprising:
a plurality of temperature and humidity sensors are arranged in an office building and used for acquiring temperature and humidity parameters of a set section in the office building in real time; specifically, in an office building, a plurality of independent office areas, conference areas and public areas are arranged in each floor, and basically, in the office areas, people work in the working hours, so that high requirements are imposed on an air conditioning system. In the independent areas such as meeting rooms, different requirements exist according to the use conditions, for example, the air conditioning system is basically closed under the condition that the air conditioning system is not used, and the air conditioning system is opened when a meeting exists. In a common area, there is usually a fixed temperature requirement, and there is no frequent change.
Therefore, in the arrangement of the temperature and humidity sensors, at least one temperature and humidity sensor is provided in each of the independent areas including at least the independent office area and the conference room, and a plurality of temperature and humidity sensors are provided in the common area as needed, where a plurality means two or more.
The intelligent fan coil temperature control box is connected with each air-conditioning fan coil controller in the office building and is used for collecting the starting number and power of the air-conditioning fan coils; specifically, the intelligent fan coil temperature control box can also be provided with a sub intelligent fan coil temperature control box according to each floor, and finally the sub intelligent fan coil temperature control boxes are converged into a main intelligent fan coil temperature control box.
The PLC is respectively in electric signal connection with the temperature and humidity sensor and the intelligent fan coil temperature control box and is used for collecting and arranging real-time data collected by the temperature and humidity sensor and the intelligent fan coil temperature control box; and transmitting the sorted real-time data to a central processing unit.
The central processing unit is connected with the PLC through bidirectional signals; in the present application, the central processing unit is a management server or a workstation, etc., and a corresponding control program or software is pre-installed in the central processing unit, and the control program or software can be installed correspondingly according to needs.
And the host controller of the modular air conditioning unit is respectively in electric signal connection with the air conditioning unit and the PLC processor, receives the control signal transmitted by the PLC processor and sends the control signal to the corresponding air conditioning unit.
The host controller of the modularized air conditioning unit comprehensively applies an intelligent group control technology, a data acquisition technology, a microprocessing technology, a PLC control technology, a frequency conversion control technology, a network communication technology and the like, and forms a unique intelligent electricity-saving control program on the basis of data acquisition of the operating temperature, the pressure, the flow and the like of the air conditioning unit.
The air conditioning unit in this technical scheme is one or more, and in this embodiment, the air conditioning unit is an air-cooled cold and hot water air conditioning unit. Each air conditioning unit is provided with a temperature sensor, a pressure sensor and a flow sensor, and the temperature sensor, the pressure sensor and the flow sensor are all in electric signal connection with a main machine controller of the modular air conditioning unit. The modularized air conditioning unit main machine controller sends the acquired data signals to the PLC, and receives control signals of the central processing unit transmitted by the PLC. The control signals include, but are not limited to, a start-stop number signal, a start-stop sequence signal, a start-stop time signal and an operation power signal of the air conditioning unit.
The application also comprises an intelligent control method of the modular cold and hot water air conditioning unit, and the intelligent joint control system of any modular cold and hot water air conditioning unit comprises the following steps:
s1, collecting and sorting air conditioner control space values of the office building, building materials of the office building and natural heat load data of the office building; the air conditioning control space value refers to the volume of each independent office area or area such as a conference room and the like so as to calculate the enthalpy value of air in the space; the building material of the office building calculates the heat or cold consumed in the whole office building according to the heat absorption capacity, heat dissipation capacity, heat preservation and other conditions of different building materials; the natural heat load of the office building refers to basic cold or heat required by heat absorption capacity, heat dissipation capacity, heat preservation condition, internal and external temperature difference and the like of the office building under natural conditions, and the cold or heat of the part is the lowest energy required for realizing refrigeration or heating of the office building.
And S2, designing a required refrigerating capacity curve and a required heating capacity curve according to the step S1, and storing the refrigerating capacity curve and the heating capacity curve in a central processing unit.
And S3, the temperature and humidity sensor arranged in the office area and the temperature and humidity sensor arranged in the public area respectively transmit the acquired real-time temperature and humidity parameters to the PLC.
The intelligent fan coil temperature control box transmits the starting quantity and power of the air-conditioning fan coil acquired in real time to the PLC processor.
The PLC processor arranges the real-time data and transmits the real-time data to the central processor.
And S4, calculating the real-time load power of the air conditioning unit to the office building by the central processing unit according to the temperature and humidity difference between the office area and the public section and the starting power of the air conditioning fan coil in the step S2.
And S5, the modular air conditioning unit host controller transmits the acquired data of the real-time running state of each air conditioning unit, the temperature, the pressure, the flow and the like of each air conditioning unit to the central processing unit.
And S6, the central processing unit calculates the actual operating power of the air conditioning unit according to the real-time load power of the step S4, the data collected by the main controller of the modular air conditioning unit of the step S5, the length of a pipe network and the preheating time difference.
And S7, the central processing unit matches the air conditioning unit circulation working sequence according to the actual running power of the air conditioning unit, and an energy-saving control signal of the air conditioning unit is designed.
And S8, the central processing unit transmits the energy-saving control signal to the host controller of the modular air conditioning unit through the PLC, and the host controller of the modular air conditioning unit respectively sends the control signal to the corresponding air conditioning unit. The control signals comprise signals for controlling the number of start-stop, the start-stop sequence, the start-stop time and the running power of the air conditioning unit.
Specific application
By taking an applicant as an example, four sets of modularized air-cooled cold (hot) water air conditioning units are used at present, the single power consumption power is about 40KW (the winter electric auxiliary heating power is not considered), the single refrigeration (refrigerating capacity) is about 130KW, and the heating capacity requirement of the highest energy consumption of the indoor and outdoor temperature difference of 35 ℃ in the winter heating season can be completely met. The working efficiency of the air conditioning unit is higher when the difference between the enthalpy of air and the enthalpy of cold (hot) air required by an office building area is smaller, the operating power of the air conditioning unit is accurately and group-controlled through a set of optimization algorithm according to the enthalpy of cold (hot) air required by the office building area and the working efficiency of the air conditioning unit by combining the working principle of an air energy heat pump air conditioning system, electric energy can be saved to a great extent, the round-robin work of the air conditioning unit is controlled through control flow, the service life of the air conditioning unit can be effectively prolonged, and the period of the air conditioning unit can be prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a accuse system is allied oneself with to modularization hot and cold water air conditioning unit intelligence which characterized in that includes:
a plurality of temperature and humidity sensors are arranged in an office building and used for acquiring temperature and humidity parameters of a set section in the office building in real time;
the intelligent fan coil temperature control box is connected with each air-conditioning fan coil controller in the office building and is used for collecting the starting number and power of the air-conditioning fan coils;
the PLC is respectively in electric signal connection with the temperature and humidity sensor and the intelligent fan coil temperature control box and is used for collecting and sorting real-time data collected by the temperature and humidity sensor and the intelligent fan coil temperature control box;
the central processing unit is connected with the PLC through bidirectional signals;
and the host controller of the modular air conditioning unit is respectively in electric signal connection with the air conditioning unit and the PLC processor, receives the control signal transmitted by the PLC processor and sends the control signal to the corresponding air conditioning unit.
2. The intelligent joint control system of modular cold and hot water air conditioning units according to claim 1, characterized in that at least one temperature and humidity sensor is arranged in each office area with an independent space in an office building, and temperature and humidity parameters in the office area are collected in real time;
a plurality of temperature and humidity sensors are arranged in a public interval in an office building, and temperature and humidity parameters in the public interval are collected in real time.
3. The intelligent combined control system for the modular cold and hot water air conditioning units as claimed in claim 1, wherein the number of the air conditioning units is one or more than one.
4. The intelligent joint control system of modular cold and hot water air conditioning units according to claim 1, wherein the control signals include, but are not limited to, a number of start-stops signal, a start-stop sequence signal, a start-stop time signal and an operating power signal of the air conditioning units.
5. The intelligent combined control system for the modular cold and hot water air conditioning units as claimed in claim 1, wherein the air conditioning units are air-cooled cold and hot water air conditioning units.
6. The intelligent combined control system for the modular cold and hot water air conditioning units as claimed in claim 1, wherein each air conditioning unit is provided with a temperature sensor, a pressure sensor and a flow sensor, and the temperature sensor, the pressure sensor and the flow sensor are all in electrical signal connection with a main machine controller of the modular air conditioning unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020852508.5U CN212320021U (en) | 2020-05-20 | 2020-05-20 | Intelligent combined control system of modular cold and hot water air conditioning unit |
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| CN202020852508.5U CN212320021U (en) | 2020-05-20 | 2020-05-20 | Intelligent combined control system of modular cold and hot water air conditioning unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503622A (en) * | 2021-06-29 | 2021-10-15 | 武汉天宇卓信信息科技有限公司 | Intelligent control regulation and control method and system for central air conditioner and computer storage medium |
| CN113865015A (en) * | 2021-09-22 | 2021-12-31 | 武汉奇人制冷技术有限公司 | AI intelligent control method and system for large-scale central air conditioner |
| CN114909781A (en) * | 2022-05-23 | 2022-08-16 | 浙江鑫帆暖通智控股份有限公司 | Building equipment intelligent group control system based on windows |
-
2020
- 2020-05-20 CN CN202020852508.5U patent/CN212320021U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503622A (en) * | 2021-06-29 | 2021-10-15 | 武汉天宇卓信信息科技有限公司 | Intelligent control regulation and control method and system for central air conditioner and computer storage medium |
| CN113865015A (en) * | 2021-09-22 | 2021-12-31 | 武汉奇人制冷技术有限公司 | AI intelligent control method and system for large-scale central air conditioner |
| CN114909781A (en) * | 2022-05-23 | 2022-08-16 | 浙江鑫帆暖通智控股份有限公司 | Building equipment intelligent group control system based on windows |
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