CN211011808U - Efficient and energy-saving control system of central air conditioner based on production demand linkage - Google Patents
Efficient and energy-saving control system of central air conditioner based on production demand linkage Download PDFInfo
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- CN211011808U CN211011808U CN201921866731.9U CN201921866731U CN211011808U CN 211011808 U CN211011808 U CN 211011808U CN 201921866731 U CN201921866731 U CN 201921866731U CN 211011808 U CN211011808 U CN 211011808U
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Abstract
The utility model belongs to the technical field of air conditioners, and particularly discloses a production demand linkage-based high-efficiency energy-saving control system for a central air conditioner, which comprises a cold source machine room, a terminal room, an energy-saving system control module and an own sensor group; a refrigeration supply return water temperature sensor is arranged in the cold source machine room, an indoor temperature and humidity sensor and an air supply temperature and humidity sensor are also arranged in a tail end room, and an outdoor temperature and humidity sensor and a fresh air temperature and humidity sensor are arranged in an own sensor group; according to the scheme, real-time data such as temperature and humidity in a main room of the terminal air conditioning system, air supply temperature and humidity of an air pipe, surface cooling valve opening degree of an air conditioning unit and the like are read, and data such as outdoor temperature and humidity of the system are read, so that the water outlet temperature of the refrigeration host is dynamically set, and therefore under the condition that the terminal air conditioning effect is guaranteed, energy consumption is reduced as far as possible.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, concretely relates to energy-efficient control system of central air conditioning based on production demand linkage.
Background
In an industrial central air-conditioning system, in order to meet the requirements of a production process, a constant-temperature and constant-humidity production environment needs to be maintained in a terminal room. When the outdoor temperature and humidity are high or the production load of users is large, the refrigeration host of the air conditioning system needs to supply low-temperature chilled water. However, when the outdoor temperature and humidity are low or the production load of a user is small, the air conditioning system still needs to supply low-temperature chilled water because no data exchange exists between the cold source machine room system and the tail end air conditioning system, so that the dehumidification requirement of the tail end is ensured. Because the central air-conditioning system is generally designed according to the maximum load, when the dehumidification demand is small, the cold utilization rate of the air-conditioning system is low, the energy consumption is wasted greatly, and the cost is overhigh.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem that solve provides a high-efficient energy-saving control system of central air conditioning based on production demand linkage, through reading real-time data such as humiture, tuber pipe air supply humiture in terminal air conditioning system's the main room to and data such as the outdoor humiture of this system, the dynamic water temperature that goes out of setting for the refrigeration host computer, thereby under the condition of guaranteeing terminal air conditioning effect, reduce the energy consumption as far as possible.
The utility model provides a technical problem adopt following technical scheme to realize: a high-efficiency energy-saving control system of a central air conditioner based on production demand linkage comprises a cold source machine room, a tail end room, an energy-saving system control module and an own sensor group, wherein a cold source machine room communication module is arranged between the cold source machine room and the energy-saving system control module; the cold source machine room is provided with a refrigeration supply return water temperature sensor, the tail end room is also provided with an indoor temperature and humidity sensor, an air supply temperature and humidity sensor and a tail end room communication module, the opening information of a surface cooling valve in the tail end room can be read and transmitted to an energy-saving system control module, and the self-contained sensor group is provided with an outdoor temperature and humidity sensor and a fresh air temperature and humidity sensor.
Furthermore, a controller and an upper computer which are responsible for reading information of each sensor and adjusting the water outlet temperature of the host are also arranged in the energy-saving system control module.
The principle of the utility model lies in:
the system firstly determines the reference value of the outlet water temperature of the refrigeration host according to the outdoor temperature and humidity and the tail end production condition. And then, in each adjusting period, determining whether the outlet water temperature of the main machine needs to be adjusted according to the terminal temperature and humidity standard exceeding risk value, and correspondingly adjusting the outlet water temperature of the refrigeration main machine by one step length when the system needs to adjust the outlet water temperature.
The terminal temperature and humidity exceeding risk value is determined according to the following factors: firstly, outdoor humiture is high, and then terminal humiture superstandard risk is high. Secondly, the variation trend of indoor humiture, if indoor humiture continues to rise, then terminal humiture overproof risk is high. And thirdly, the opening degree of a surface cooling valve of the tail end air conditioning unit is large, and the risk of exceeding the standard of the temperature and the humidity of the tail end is high. Fourthly, the ratio of the air supply dew point temperature to the indoor dew point temperature is high, and the risk of exceeding the terminal temperature and humidity is high.
Besides, the outlet water temperature of the main machine is limited by a maximum value and a minimum value, and the limit is determined according to the outdoor temperature and humidity.
The scheme has the beneficial effects as follows:
according to the scheme, real-time data such as temperature and humidity in a main room of the tail end air conditioning system, air supply temperature and humidity of an air pipe, surface cooling valve opening degree of an air conditioning unit and the like are read, and data such as outdoor temperature and humidity of the system are read, so that the outlet water temperature of the refrigeration host is dynamically set, and therefore under the condition that the tail end air conditioning effect is guaranteed, energy consumption is reduced as far as possible; the solution is under the uncertain situation of industrial production, and former system must make the refrigerator keep under the cryogenic refrigeration constantly, through the utility model discloses can be when satisfying terminal production demand, the automatically regulated refrigerator leaving water temperature improves host computer efficiency, improves the whole energy-saving rate of central air conditioning system.
Drawings
Fig. 1 is the utility model relates to a central air conditioning high efficiency energy saving control system schematic diagram based on production demand linkage.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Reference numerals in the drawings of the specification include: the system comprises an energy-saving system control module 1, a cold source machine room 2, a tail end room 3 and an own sensor group 4.
Examples
As shown in fig. 1, a production requirement linkage-based efficient energy-saving control system for a central air conditioner comprises a cold source machine room 2, a tail end room 3, an energy-saving system control module 1 and an own sensor group 4, wherein a cold source machine room communication module is arranged between the cold source machine room 2 and the energy-saving system control module 1, a tail end air conditioner communication module is arranged between the tail end room 3 and the energy-saving system control module 1, and a sensor communication module is arranged between the own sensor group 4 and the energy-saving system control module 1; be equipped with freezing supply return water temperature sensor in the cold source computer lab 2, still be equipped with indoor temperature and humidity sensor, air supply temperature and humidity sensor, table cold valve etc. in the terminal room 3, be equipped with outdoor temperature and humidity sensor and new trend temperature and humidity sensor in the sensor group 4 certainly. The energy-saving system control module 1 is also provided with a controller and an upper computer which are responsible for reading information of each sensor and adjusting the water outlet temperature of the host.
In this example, the cold source room 2 has a temperature sensor for the cooling water and the returning water (siemens QAE2121.010), and the end room 3 has an indoor temperature and humidity sensor (siemens QAA2010) and an air supply temperature and humidity sensor (siemens QFM1660), and can also provide the opening information of the surface cooling valve of the air conditioning unit. In order to meet the operation of the system, self-sensors are additionally added in the sensor communication module, wherein the self-sensors comprise an outdoor temperature and humidity sensor (Siemens QFA3171+ AQF3100) and a fresh air temperature and humidity sensor (Siemens QFM 1660). When the system runs, the system reads real-time data of each module sensor and calculates the current terminal temperature and humidity exceeding risk value. The system adjusts the outlet water temperature of the host once according to the current overproof risk value and a specific step length every other time period, and transmits the outlet water temperature to the host through the cold source machine room communication module. Along with the operation of the system, the outlet water temperature of the main machine is constantly changed, and the outlet water temperature is increased when the load is smaller, so that the refrigeration efficiency of the main machine is improved, and the overall efficiency of the central air-conditioning system is improved.
According to the scheme, real-time data such as temperature and humidity in a main room of the tail end air conditioning system, air supply temperature and humidity of an air pipe, surface cooling valve opening degree of an air conditioning unit and the like are read, and data such as outdoor temperature and humidity of the system are read, so that the outlet water temperature of the refrigeration host is dynamically set, and therefore under the condition that the tail end air conditioning effect is guaranteed, energy consumption is reduced as far as possible; the solution is under the uncertain situation of industrial production, and former system must make the refrigerator keep under the cryogenic refrigeration constantly, through the utility model discloses can be when satisfying terminal production demand, the automatically regulated refrigerator leaving water temperature improves host computer efficiency, improves the whole energy-saving rate of central air conditioning system.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, and it should be understood by those skilled in the art that the present invention is not limited by the above embodiments, but only by the principle of the present invention, and the present invention can be modified without departing from the spirit and scope of the present invention, and all of the modifications and improvements fall within the scope of the present invention.
Claims (2)
1. A high-efficiency energy-saving control system of a central air conditioner based on production demand linkage is characterized by comprising a cold source machine room, a tail end room, an energy-saving system control module and an own sensor group, wherein a cold source machine room communication module for communication is arranged between the cold source machine room and the energy-saving system control module; the cold source machine room is internally provided with a refrigeration supply return water temperature sensor, the tail end room is also internally provided with an indoor temperature and humidity sensor and an air supply temperature and humidity sensor, and the self-contained sensor group is internally provided with an outdoor temperature and humidity sensor and a fresh air temperature and humidity sensor.
2. The efficient energy-saving control system of the central air conditioner based on the linkage of the production requirements of claim 1, which is characterized in that: and the energy-saving system control module is also provided with a controller and an upper computer which are responsible for reading the information of each sensor and adjusting the water outlet temperature of the host.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921866731.9U CN211011808U (en) | 2019-11-01 | 2019-11-01 | Efficient and energy-saving control system of central air conditioner based on production demand linkage |
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| CN201921866731.9U CN211011808U (en) | 2019-11-01 | 2019-11-01 | Efficient and energy-saving control system of central air conditioner based on production demand linkage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739371A (en) * | 2021-08-31 | 2021-12-03 | 广州汇电云联互联网科技有限公司 | Central air-conditioning system based on cloud cooperation and control method thereof |
| CN113739397A (en) * | 2021-08-31 | 2021-12-03 | 广州汇电云联互联网科技有限公司 | Central air-conditioning system and energy-saving control method and readable storage medium thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113739371A (en) * | 2021-08-31 | 2021-12-03 | 广州汇电云联互联网科技有限公司 | Central air-conditioning system based on cloud cooperation and control method thereof |
| CN113739397A (en) * | 2021-08-31 | 2021-12-03 | 广州汇电云联互联网科技有限公司 | Central air-conditioning system and energy-saving control method and readable storage medium thereof |
| CN113739397B (en) * | 2021-08-31 | 2022-09-02 | 广州汇电云联互联网科技有限公司 | Central air-conditioning system, energy-saving control method thereof and readable storage medium |
| CN113739371B (en) * | 2021-08-31 | 2023-03-07 | 广州汇电云联互联网科技有限公司 | Central air conditioning system based on cloud cooperation and control method thereof |
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Address after: 4 / F, building 1, No. 22, Kangzheng Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Dachong Energy Technology Co.,Ltd. Address before: 4 / F, building 1, No. 22, Kangzheng Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG DACHONG ENERGY SCIENCE & TECHNOLOGY CO.,LTD. |