CN114440354A - Computer room monitoring method, system and storage medium - Google Patents
Computer room monitoring method, system and storage medium Download PDFInfo
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- CN114440354A CN114440354A CN202111551821.0A CN202111551821A CN114440354A CN 114440354 A CN114440354 A CN 114440354A CN 202111551821 A CN202111551821 A CN 202111551821A CN 114440354 A CN114440354 A CN 114440354A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000000498 cooling water Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 238000007710 freezing Methods 0.000 claims abstract description 5
- 230000008014 freezing Effects 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 30
- 238000004891 communication Methods 0.000 claims description 16
- 238000004378 air conditioning Methods 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 6
- 238000007791 dehumidification Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 description 8
- 230000002411 adverse Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- 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
- F24F11/47—Responding to energy costs
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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
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Signal Processing (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Sustainable Energy (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of fresh air systems, and discloses a machine room monitoring method, a system and a storage medium, wherein the method controls each device in a machine room system to start or pause work through a preset time interval; calculating the cold load of a building where a computer room system is located, and automatically adjusting the number of started refrigerating units according to the cold load or the percentage of the load current of the refrigerating machine; starting or suspending each refrigerating unit in the machine room system according to a preset equal running time principle; performing chilled water pressure difference bypass adjustment on the machine room system; resetting the temperature of the outlet water of the frozen water; and carrying out frequency conversion regulation on the freezing water pump, the cooling water pump and the hot water pump. Therefore, stable work of the machine room system can be guaranteed, and the energy efficiency of the machine room system is improved.
Description
Technical Field
The invention relates to the technical field of fresh air systems, in particular to a method and a system for monitoring a machine room and a storage medium.
Background
Along with the acceleration of the process of modern construction, building energy consumption receives more and more people's concern, especially the air conditioner energy consumption problem of indoor system receives people's key attention, and in people's daily life, air conditioner energy consumption is very important, and too high air conditioner energy consumption can influence the life of air conditioner, increases people's cost in the aspect of the air conditioner, still can increase electric power system's pressure even. At present, the energy consumption of air conditioners on the market is generally high, and the situation that power failure occurs in the peak period of power utilization often occurs. Therefore, the energy consumption of the fresh air system in the prior art is too high, and adverse effects are brought to the daily life of people.
Disclosure of Invention
The invention provides a machine room monitoring method, a machine room monitoring system and a storage medium, and aims to solve the problem that the energy consumption of a fresh air system in the technology is too high, and adverse effects are brought to the daily life of people.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a machine room monitoring method applied to a machine room system, where the machine room system includes a ground source heat pump unit, a chilled water pump, a cooling water pump, a ground source cooling system, a cooling tower, and a hot water exchange system, the ground source heat pump unit is connected in series with the chilled water pump and the hot water exchange system, the ground source cooling system is connected in parallel with the cooling tower and then connected in series with the cooling water pump and the hot water exchange system, and the method includes:
controlling each device in the machine room system to start or pause work through a preset time interval;
calculating the cold load of a building in which a computer room system is positioned, and automatically adjusting the starting number of the ground source heat pump units according to the percentage of the cold load or the load current of a refrigerating machine;
starting or suspending each ground source heat pump unit in the machine room system according to a preset equal running time principle;
performing chilled water pressure difference bypass regulation on the machine room system based on a preset water pressure difference regulation mode; resetting the temperature of the outlet water of the frozen water;
and carrying out frequency conversion regulation on the freezing water pump, the cooling water pump and the hot water pump based on a preset frequency conversion regulation mode.
Optionally, the controlling a start sequence of starting operation when each device in the machine room system starts or suspends operation includes:
an electric butterfly valve of a ground source cooling system, main machine chilled water and cooling water side electric butterfly valves, a cooling water pump, a device of the ground source cooling system, a chilled water pump and a ground source heat pump unit, wherein the ground source heat pump unit starts the machine after the flow of the chilled water and the cooling water is verified;
wherein the pause sequence of the pause operation is opposite to the start sequence.
Optionally, the performing chilled water pressure difference bypass regulation on the machine room system includes:
when a refrigeration system to which the ground source heat pump unit belongs is closed, the chilled water bypass valve is forcibly opened by 100 percent; when the refrigerating system is started, the opening of the chilled water bypass valve is adjusted along with the chilled water supply and return water pressure difference.
Optionally, the method further comprises:
according to the cooling water return water temperature, the number of the cooling tower starting and stopping units and the number of the ground source system electric valves are automatically adjusted, and the cooling water temperature is guaranteed to be within a preset temperature range in the energy efficiency of the refrigeration host machine.
Optionally, reset frozen water leaving water temperature, include:
according to the external environment conditions, the running state of the water chilling unit, the running characteristics of the air conditioning unit, the terminal load condition, the temperature and humidity parameters of the air conditioning area and the like, the running state of the unit is optimized, the outlet water temperature of the chilled water is automatically reset, and the outlet water temperature of the chilled water is improved under the condition that the dehumidification and refrigeration comfort conditions of the air conditioning area are met.
Optionally, the frequency conversion adjustment of the chilled water pump, the cooling water pump, and the hot water pump includes:
and performing proportional integral control on the tail end pressure difference of the chilled water system acquired by the system, and using the pressure difference of the chilled water main pipe as the process quantity of variable frequency regulation control under the condition that the judgment and position selection of the most unfavorable end at the tail end of the chilled water system are not clear.
Optionally, the method further comprises:
and the gateway equipment is used for acquiring the detailed data of the RS485 interface and the MODBUS protocol of the third-party equipment or system.
In a second aspect, an embodiment of the present application provides a machine room monitoring system, including a processor, a communication interface, a memory, and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;
a memory for storing a computer program;
a processor for implementing the method steps as described in the first aspect when executing a program stored in the memory.
In a third aspect, embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor, implements the method steps as described in the first aspect.
Has the advantages that:
according to the machine room monitoring method provided by the invention, each device in the machine room system is controlled to start or pause working through a preset time interval; calculating the cold load of a building where a computer room system is located, and automatically adjusting the number of started refrigerating units according to the cold load or the percentage of the load current of the refrigerating machine; starting or suspending each refrigerating unit in the machine room system according to a preset equal running time principle; performing chilled water pressure difference bypass adjustment on the machine room system; resetting the temperature of the outlet water of the frozen water; and carrying out frequency conversion regulation on the freezing water pump, the cooling water pump and the hot water pump. Therefore, stable work of the machine room system can be guaranteed, and the energy efficiency of the machine room system is improved.
Drawings
Fig. 1 is a flowchart of a machine room monitoring method according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present application provides a machine room monitoring method applied to a machine room system, where the machine room system includes a ground source heat pump unit, a chilled water pump, a cooling water pump, a ground source cooling system, a cooling tower, and a hot water exchange system, the ground source heat pump unit is connected in series with the chilled water pump and the hot water exchange system, the ground source cooling system is connected in parallel with the cooling tower and then connected in series with the cooling water pump and the hot water exchange system, and the method includes:
102, calculating the cold load of a building where a computer room system is located, and automatically adjusting the starting number of the ground source heat pump units according to the percentage of the load current of the cold load or a refrigerating machine;
103, starting or suspending each ground source heat pump unit in the machine room system according to a preset equal running time principle;
104, performing chilled water pressure difference bypass regulation on the machine room system based on a preset water pressure difference regulation mode; resetting the temperature of the outlet water of the frozen water;
and 105, performing frequency conversion regulation on the freezing water pump, the cooling water pump and the hot water pump based on a preset frequency conversion regulation mode.
The refrigerating unit and the ground source heat pump are the same device, and are only called as the refrigerating unit under the refrigeration working condition.
The machine room monitoring method can ensure the stable work of the machine room system and improve the energy efficiency of the machine room system.
Optionally, the controlling of the start or stop of each device in the machine room system includes:
an electric butterfly valve of a ground source cooling system, a main machine chilled water and cooling water side electric butterfly valve, a cooling water pump, a device of the ground source cooling system, a chilled water pump and a ground source heat pump unit, wherein the ground source heat pump unit is started after the flow of the chilled water and the cooling water is verified;
wherein the pause sequence of the pause operation is opposite to the start sequence.
In this optional embodiment, the sequential start-stop device: the refrigerating unit and the related equipment (cooling tower, cooling water pump and refrigerating water pump) are started and stopped in sequence in an interlocking way according to a programmed time program or through an operator of a management center. The heat pump units, the chilled water pumps, the cooling water pumps and the cooling towers (ground source cooling systems) are in one-to-one correspondence, and the starting numbers are matched; the main machine set, the cold water pump, the cooling tower (ground source cooling system) and the electric butterfly valve thereof are started and stopped in an electric interlocking way, and the starting sequence is as follows: the cooling tower (ground source cooling system) electric butterfly valve-main machine chilled water and cooling water side electric butterfly valve-cooling water pump-cooling tower (ground source cooling system) -chilled water pump-heat pump unit, and the heat pump unit is started after the chilled water cooling water flow is verified. The system is shut down in the reverse order described above.
Optionally, the performing chilled water pressure difference bypass regulation on the machine room system includes:
when the local source heat pump unit belongs to the closed state, the chilled water bypass valve is forcibly opened by 100 percent; when the refrigerating system is started, the opening of the chilled water bypass valve is adjusted along with the chilled water supply and return water pressure difference. Therefore, the proper pressure difference can be maintained, and the normal operation of the air conditioning system is ensured.
Optionally, the method further comprises:
according to the cooling water return temperature, the number of the cooling tower start and stop units and the number of the ground source system electric valves are automatically adjusted, and the cooling water temperature is guaranteed to be within a preset temperature range in the energy efficiency of the refrigeration host.
In this alternative embodiment, the preset temperature range may be 32 to 37 ℃. The examples are given herein by way of illustration only and not by way of limitation.
Optionally, resetting the temperature of the outlet water of the frozen water comprises:
according to the external environment conditions, the running state of the water chilling unit, the running characteristics of the air conditioning unit, the terminal load condition, the temperature and humidity parameters of the air conditioning area and the like, the running state of the unit is optimized, the outlet water temperature of the chilled water is automatically reset, and the outlet water temperature of the chilled water is improved under the condition that the dehumidification and refrigeration comfort conditions of the air conditioning area are met. Therefore, the outlet water temperature of the chilled water is increased, and the operation energy efficiency of the unit can be improved. The energy efficiency of the unit is improved by 3-5% when the outlet water temperature of the chilled water is improved by 1 ℃.
Specifically, the operation state of the unit is optimized by acquiring main information such as the temperature and humidity of an indoor air conditioning area, feeding the main information back to the control system through a sensor to set the operation condition of the unit, and adjusting the refrigerating capacity or the flow rate of the chilled water if the unit is a variable frequency compressor. And when the parameters such as temperature, humidity and the like reach preset values, the host or the water pump is turned off in sequence. And controlling the shutdown time of the related equipment to reduce energy consumption.
Optionally, the frequency conversion adjustment of the chilled water pump, the cooling water pump, and the hot water pump includes:
and performing proportional integral control on the tail end pressure difference of the chilled water system acquired by the system, and using the pressure difference of the chilled water main pipe as the process quantity of variable frequency regulation control under the condition that the judgment and position selection of the most unfavorable end at the tail end of the chilled water system are not clear.
In this alternative embodiment, the chilled water system end is the most adverse end.
The proportional integral control may be performed by using a PI control valve, for example, for a flow system: p (%) is 40-100, I (min) is 0.1-1; for a pressure system: p (%) is 30-70, I (min) is 0.4-3; for a fluid level system: p (%) is 20-80, and I (min) is 1-5, and the opening degree of the valve is adjusted by PI control, wherein P and I are parameters corresponding to the system.
Optionally, the method further comprises:
and the gateway equipment is used for acquiring the detailed data of the RS485 interface and the MODBUS protocol of the third-party equipment or system.
In this optional embodiment, the third party interface includes a water chiller and a temperature control panel. The manufacturer of the third-party equipment provides an RS485 physical interface, communication data of an MODBUS protocol and a protocol point table text. The gateway device is accessed to the BAS in the form of RS485, and the gateway device uploads the detailed reference of the third-party system to the BAS upper device. And monitoring the state of the specific data, and displaying the data on an operation station to remind an operator to arrange related personnel to do corresponding work. The purpose of monitoring can be achieved.
The embodiment of the application also provides a machine room monitoring system, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus;
a memory for storing a computer program;
and the processor is used for realizing the steps of the method when executing the program stored in the memory.
The machine room monitoring system of the embodiment of the application can realize each embodiment of the machine room monitoring method and can achieve the same beneficial effects, and the detailed description is omitted here.
Embodiments of the present application also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the above-mentioned method steps. The computer-readable storage medium according to the embodiment of the present application can implement each embodiment of the foregoing machine room monitoring method, and can achieve the same beneficial effects, which are not described herein again.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (9)
1. A machine room monitoring method is applied to a machine room system, the machine room system comprises a ground source heat pump unit, a chilled water pump, a cooling water pump, a ground source cooling system, a cooling tower and a hot water exchange system, the ground source heat pump unit is connected with the chilled water pump and the hot water exchange system in series, the ground source cooling system is connected with the cooling tower in parallel and then connected with the cooling water pump and the hot water exchange system in series, and the method is characterized by comprising the following steps:
controlling each device in the machine room system to start or pause work through a preset time interval;
calculating the cold load of a building in which a computer room system is positioned, and automatically adjusting the starting number of the ground source heat pump units according to the percentage of the cold load or the load current of a refrigerating machine;
starting or suspending each ground source heat pump unit in the machine room system according to a preset equal running time principle;
performing chilled water pressure difference bypass regulation on the machine room system based on a preset water pressure difference regulation mode; and resetting the temperature of the outlet water of the frozen water;
and carrying out frequency conversion regulation on the freezing water pump, the cooling water pump and the hot water pump based on a preset frequency conversion regulation mode.
2. The machine room monitoring method according to claim 1, wherein the controlling a start sequence of start operation when each device in the machine room system starts or suspends operation comprises:
an electric butterfly valve of a ground source cooling system, a main machine chilled water and cooling water side electric butterfly valve, a cooling water pump, a device of the ground source cooling system, a chilled water pump and a ground source heat pump unit, wherein the ground source heat pump unit is started after the flow of the chilled water and the cooling water is verified;
wherein the pause sequence of the pause operation is opposite to the start sequence.
3. The machine room monitoring method according to claim 1, wherein the performing chilled water differential pressure bypass regulation on the machine room system comprises:
when a refrigeration system to which the ground source heat pump unit belongs is closed, the chilled water bypass valve is forcibly opened by 100 percent; when the refrigerating system is started, the opening of the chilled water bypass valve is adjusted along with the chilled water supply and return water pressure difference.
4. The machine room monitoring method according to claim 1, further comprising:
according to the cooling water return water temperature, the number of the cooling tower starting and stopping units and the number of the ground source system electric valves are automatically adjusted, and the cooling water temperature is guaranteed to be within a preset temperature range in the energy efficiency of the refrigeration host machine.
5. The machine room monitoring method according to claim 1, wherein the resetting of the outlet water temperature of the chilled water comprises:
according to the external environment conditions, the running state of the water chilling unit, the running characteristics of the air conditioning unit, the terminal load condition, the temperature and humidity parameters of the air conditioning area and the like, the running state of the unit is optimized, the outlet water temperature of the chilled water is automatically reset, and the outlet water temperature of the chilled water is improved under the condition that the dehumidification and refrigeration comfort conditions of the air conditioning area are met.
6. The machine room monitoring method according to claim 1, wherein the frequency conversion adjustment of the chilled water pump, the cooling water pump and the hot water pump comprises:
and performing proportional integral control on the tail end pressure difference of the chilled water system acquired by the system, and using the pressure difference of the chilled water main pipe as the process quantity of variable frequency regulation control under the condition that the judgment and position selection of the most unfavorable end at the tail end of the chilled water system are not clear.
7. The machine room monitoring method according to claim 1, further comprising:
and acquiring detailed data of an RS485 interface and an MODBUS protocol of a third-party device or system through gateway equipment.
8. A machine room monitoring system is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for finishing mutual communication through the communication bus by the memory;
a memory for storing a computer program;
a processor for implementing the method steps of any one of claims 1 to 7 when executing a program stored in the memory.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 7.
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| CN202111551821.0A CN114440354A (en) | 2021-12-17 | 2021-12-17 | Computer room monitoring method, system and storage medium |
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| CN202111551821.0A CN114440354A (en) | 2021-12-17 | 2021-12-17 | Computer room monitoring method, system and storage medium |
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2021
- 2021-12-17 CN CN202111551821.0A patent/CN114440354A/en active Pending
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| CN210292430U (en) * | 2019-05-17 | 2020-04-10 | 保定开源制冷设备安装工程有限公司 | Season-crossing cold accumulation frozen soil source heat pump system |
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