CN112984706A - Unit type rack air conditioner control system and control method for 5GBBU intelligent cabinet - Google Patents
Unit type rack air conditioner control system and control method for 5GBBU intelligent cabinet Download PDFInfo
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- CN112984706A CN112984706A CN202110306137.XA CN202110306137A CN112984706A CN 112984706 A CN112984706 A CN 112984706A CN 202110306137 A CN202110306137 A CN 202110306137A CN 112984706 A CN112984706 A CN 112984706A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 238000004378 air conditioning Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides a unit type rack air conditioner control system and a control method for a 5GBBU intelligent cabinet, and relates to the technical field of air conditioners. The unit type rack air conditioner control system and the control method for the 5GBBU intelligent cabinet comprise a low-pressure sensor, a high-pressure sensor and a variable-frequency compressor; the low-pressure sensor is arranged at the position of an air suction port copper pipe of the variable-frequency compressor; the high-pressure sensor is arranged at the position of an exhaust port copper pipe of the variable-frequency compressor; and the low-pressure sensor, the high-pressure sensor and the variable-frequency compressor are respectively and electrically connected with the control system through connecting wires. By adopting a standard reliable operation pressure control system, the system pressure of the frame air conditioner is always kept in a reliable operation pressure range when the compressor is started to operate, the operation life of the compressor is ensured, and the integral working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a unit type rack air conditioner control system and a control method for a 5GBBU intelligent cabinet.
Background
An air conditioning system is a system that treats the temperature, humidity, cleanliness and airflow velocity of indoor air using a manual method. It can make some places obtain air with a certain temp., humidity and air quality so as to meet the requirements of user and production process and improve labour hygiene and indoor climate condition. And the control system ensures that the air environment state parameter in a certain specific space reaches a desired value by using an automatic control device. The main parameters to be adjusted are temperature and humidity, and also cleanliness, pressure and components. The air conditioning equipment consumes much energy, and the energy conservation to the maximum extent is the central task of the air conditioner control system on the premise of meeting the use requirement. The main energy-saving optimization index is a main mark for identifying the advancement of the air conditioning system.
The invention patent CN110740621B discloses a rack-mounted air conditioner control method, a control system and a rack-mounted air conditioner, which points out that the operating pressure of the whole refrigeration cycle is controlled by an indoor fan in an interference way, if a pressure interference condition is met, the indoor fan operates according to an interference rotating speed, and if a quit interference condition is met, the indoor fan operates according to a set rotating speed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a unit type rack air conditioner control system and a control method for a 5GBBU intelligent cabinet, which solve the problem that the prior art is that the operating pressure of the whole refrigeration cycle is controlled by an indoor fan in an interference mode, if the pressure interference condition is met, the indoor fan operates according to the interference rotating speed, and if the quit interference condition is met, the indoor fan operates according to the set rotating speed, and the control method of the technical scheme is difficult to reduce the operating pressure of a compressor only by adjusting the rotating speed of the indoor fan.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a unit type frame air conditioner control system for a 5GBBU intelligent cabinet comprises a low-pressure sensor, a high-pressure sensor and a variable-frequency compressor;
the low-pressure sensor is arranged at the position of an air suction port copper pipe of the variable-frequency compressor;
the high-pressure sensor is arranged at the position of an exhaust port copper pipe of the variable-frequency compressor;
and the low-pressure sensor, the high-pressure sensor and the variable-frequency compressor are respectively and electrically connected with the control system through connecting wires.
A control method of a unit type rack air conditioner for a 5GBBU intelligent cabinet comprises the following specific steps:
s1, executing the following steps when judging whether a low-pressure intervention condition is met: when the compressor starts to operate, the low-pressure sensor collects the low-pressure in real time and judges whether the real-time low-pressure is smaller than the low-pressure of the low limit value or larger than or equal to the low-pressure of the high limit value; if the real-time low-pressure is smaller than the low-pressure of the low limit value, the control system controls the compressor to operate at the speed of 1 Hz per second; if the real-time low-pressure is larger than or equal to the high-limit low-pressure, the control system controls the compressor to run at the increasing frequency of 1 Hz per second;
s2, keeping the compressor to operate in a frequency reduction or frequency increase mode according to the speed of 1 Hz per second, and executing the following steps when judging whether the condition of exiting low-pressure intervention is met: the low-pressure sensor collects low-pressure in real time and judges whether the real-time low-pressure is greater than or equal to a low-limit value low-pressure and smaller than a high-limit value low-pressure or not; if the real-time low-pressure is greater than or equal to the low-pressure of the low limit value and less than the low-pressure of the high limit value, judging that the condition for exiting the low-pressure intervention is met, and controlling the compressor to operate according to the frequency calculated by the normal requirement by the control system;
s3, executing the following steps when judging whether the high pressure intervention condition is met: the low-pressure sensor collects low-pressure in real time, the high-pressure sensor collects high-pressure in real time, whether the real-time low-pressure is greater than or equal to a low set threshold and smaller than a middle set threshold interval or not is judged, if the real-time low-pressure is greater than or equal to the low set threshold and smaller than the middle set threshold interval, whether the real-time high-pressure is less than or equal to 1.2 times of the real-time low-pressure or greater than or equal to a high-limit value high-pressure or not is judged, and if the real-time high-pressure is less than or equal to; if the real-time high-pressure is greater than or equal to the high-limit high-pressure, the control system controls the compressor to operate at a reduced frequency of 1 Hz per second; if the real-time high-pressure is more than 1.2 times of the real-time low-pressure and less than the high-limit value high-pressure, the control system controls the compressor to quit the high-pressure intervention condition and operates according to the frequency calculated by the normal requirement;
s4, judging whether the real-time low-pressure is in a range of more than or equal to a middle set threshold and less than a high set threshold; if the real-time low pressure is greater than or equal to the middle set threshold and smaller than the high set threshold interval, judging whether the real-time high pressure is less than or equal to 1.2 times of the real-time low pressure or greater than or equal to 0.9 times of the high limit value high pressure; if the real-time high-pressure is less than or equal to 1.2 times of the real-time low-pressure, the control system controls the compressor to run at the increasing frequency of 1 Hz per second; if the real-time high-pressure is more than or equal to 0.9 time of high-limit value high-pressure, the control system controls the compressor to operate at the reduced frequency of 1 Hz per second; and if the real-time high-pressure is more than 1.2 times of the real-time low-pressure and less than 0.9 times of the high-limit value high-pressure, the control system controls the compressor to exit from the high-pressure intervention condition and operates according to the frequency calculated by the normal requirement.
(III) advantageous effects
The invention provides a unit type rack air conditioner control system and a control method for a 5GBBU intelligent cabinet. The method has the following beneficial effects:
1. according to the unit type rack air conditioner control system and the control method for the 5GBBU intelligent cabinet, the rack air conditioner can operate more stably and reliably as a whole through the scientific and reliable design of the rack air conditioner control system and the control method, and the condition that the system pressure is abnormal when a compressor is started to operate cannot easily occur.
2. According to the control system and the control method for the unit type rack air conditioner of the 5GBBU intelligent cabinet, the standard reliable operation pressure control system is adopted, so that the system pressure of the rack air conditioner is always kept in a reliable operation pressure range when the compressor starts to operate, the operation life of the compressor is ensured, and the integral work efficiency is greatly improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example (b):
the embodiment of the invention provides a unit type rack air conditioner control system for a 5GBBU intelligent cabinet, which comprises a low-pressure sensor, a high-pressure sensor and a variable-frequency compressor, wherein the low-pressure sensor is connected with the high-pressure sensor;
the low-pressure sensor is arranged at the position of an air suction port copper pipe of the variable-frequency compressor;
the high-pressure sensor is arranged at the exhaust port copper pipe of the variable-frequency compressor;
the low-pressure sensor, the high-pressure sensor and the variable-frequency compressor are respectively and electrically connected with the control system through connecting wires, and the low-pressure sensor, the high-pressure sensor and the variable-frequency compressor are respectively and electrically connected with the control system through connecting wires, so that the low-pressure sensor, the high-pressure sensor and the variable-frequency compressor can be in real-time joint control with the control system.
A control method of a unit type rack air conditioner for a 5GBBU intelligent cabinet comprises the following specific steps:
s1, executing the following steps when judging whether a low-pressure intervention condition is met: when the compressor starts to operate, the low-pressure sensor collects the low-pressure in real time and judges whether the real-time low-pressure is smaller than the low-pressure of the low limit value or larger than or equal to the low-pressure of the high limit value; if the real-time low-pressure is smaller than the low-pressure of the low limit value, the control system controls the compressor to operate at the speed of 1 Hz per second; if the real-time low-pressure is larger than or equal to the high-limit low-pressure, the control system controls the compressor to run at the increasing frequency of 1 Hz per second;
s2, keeping the compressor to operate in a frequency reduction or frequency increase mode according to the speed of 1 Hz per second, and executing the following steps when judging whether the condition of exiting low-pressure intervention is met: the low-pressure sensor collects low-pressure in real time and judges whether the real-time low-pressure is greater than or equal to a low-limit value low-pressure and smaller than a high-limit value low-pressure or not; if the real-time low-pressure is greater than or equal to the low-pressure of the low limit value and less than the low-pressure of the high limit value, judging that the condition for exiting the low-pressure intervention is met, and controlling the compressor to operate according to the frequency calculated by the normal requirement by the control system;
s3, executing the following steps when judging whether the high pressure intervention condition is met: the low-pressure sensor collects low-pressure in real time, the high-pressure sensor collects high-pressure in real time, whether the real-time low-pressure is greater than or equal to a low set threshold and smaller than a middle set threshold interval or not is judged, if the real-time low-pressure is greater than or equal to the low set threshold and smaller than the middle set threshold interval, whether the real-time high-pressure is less than or equal to 1.2 times of the real-time low-pressure or greater than or equal to a high-limit value high-pressure or not is judged, and if the real-time high-pressure is less than or equal to; if the real-time high-pressure is greater than or equal to the high-limit high-pressure, the control system controls the compressor to operate at a reduced frequency of 1 Hz per second; if the real-time high-pressure is more than 1.2 times of the real-time low-pressure and less than the high-limit value high-pressure, the control system controls the compressor to quit the high-pressure intervention condition and operates according to the frequency calculated by the normal requirement;
s4, judging whether the real-time low-pressure is in a range of more than or equal to a middle set threshold and less than a high set threshold; if the real-time low pressure is greater than or equal to the middle set threshold and smaller than the high set threshold interval, judging whether the real-time high pressure is less than or equal to 1.2 times of the real-time low pressure or greater than or equal to 0.9 times of the high limit value high pressure; if the real-time high-pressure is less than or equal to 1.2 times of the real-time low-pressure, the control system controls the compressor to run at the increasing frequency of 1 Hz per second; if the real-time high-pressure is more than or equal to 0.9 time of high-limit value high-pressure, the control system controls the compressor to operate at the reduced frequency of 1 Hz per second; and if the real-time high-pressure is more than 1.2 times of the real-time low-pressure and less than 0.9 times of the high-limit value high-pressure, the control system controls the compressor to exit from the high-pressure intervention condition and operates according to the frequency calculated by the normal requirement.
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 (2)
1. The utility model provides a unit frame air conditioner control system for 5GBBU intelligence cabinet which characterized in that: the device comprises a low-pressure sensor, a high-pressure sensor and a variable-frequency compressor;
the low-pressure sensor is arranged at the position of an air suction port copper pipe of the variable-frequency compressor;
the high-pressure sensor is arranged at the position of an exhaust port copper pipe of the variable-frequency compressor;
and the low-pressure sensor, the high-pressure sensor and the variable-frequency compressor are respectively and electrically connected with the control system through connecting wires.
2. The method for controlling the air conditioner of a unit rack of a 5GBBU intelligent cabinet as claimed in claim 1, comprising the following steps:
s1, executing the following steps when judging whether a low-pressure intervention condition is met: when the compressor starts to operate, the low-pressure sensor collects the low-pressure in real time and judges whether the real-time low-pressure is smaller than the low-pressure of the low limit value or larger than or equal to the low-pressure of the high limit value; if the real-time low-pressure is smaller than the low-pressure of the low limit value, the control system controls the compressor to operate at the speed of 1 Hz per second; if the real-time low-pressure is larger than or equal to the high-limit low-pressure, the control system controls the compressor to run at the increasing frequency of 1 Hz per second;
s2, keeping the compressor to operate in a frequency reduction or frequency increase mode according to the speed of 1 Hz per second, and executing the following steps when judging whether the condition of exiting low-pressure intervention is met: the low-pressure sensor collects low-pressure in real time and judges whether the real-time low-pressure is greater than or equal to a low-limit value low-pressure and smaller than a high-limit value low-pressure or not; if the real-time low-pressure is greater than or equal to the low-pressure of the low limit value and less than the low-pressure of the high limit value, judging that the condition for exiting the low-pressure intervention is met, and controlling the compressor to operate according to the frequency calculated by the normal requirement by the control system;
s3, executing the following steps when judging whether the high pressure intervention condition is met: the low-pressure sensor collects low-pressure in real time, the high-pressure sensor collects high-pressure in real time, whether the real-time low-pressure is greater than or equal to a low set threshold and smaller than a middle set threshold interval or not is judged, if the real-time low-pressure is greater than or equal to the low set threshold and smaller than the middle set threshold interval, whether the real-time high-pressure is less than or equal to 1.2 times of the real-time low-pressure or greater than or equal to a high-limit value high-pressure or not is judged, and if the real-time high-pressure is less than or equal to; if the real-time high-pressure is greater than or equal to the high-limit high-pressure, the control system controls the compressor to operate at a reduced frequency of 1 Hz per second; if the real-time high-pressure is more than 1.2 times of the real-time low-pressure and less than the high-limit value high-pressure, the control system controls the compressor to quit the high-pressure intervention condition and operates according to the frequency calculated by the normal requirement;
s4, judging whether the real-time low-pressure is in a range of more than or equal to a middle set threshold and less than a high set threshold; if the real-time low pressure is greater than or equal to the middle set threshold and smaller than the high set threshold interval, judging whether the real-time high pressure is less than or equal to 1.2 times of the real-time low pressure or greater than or equal to 0.9 times of the high limit value high pressure; if the real-time high-pressure is less than or equal to 1.2 times of the real-time low-pressure, the control system controls the compressor to run at the increasing frequency of 1 Hz per second; if the real-time high-pressure is more than or equal to 0.9 time of high-limit value high-pressure, the control system controls the compressor to operate at the reduced frequency of 1 Hz per second; and if the real-time high-pressure is more than 1.2 times of the real-time low-pressure and less than 0.9 times of the high-limit value high-pressure, the control system controls the compressor to exit from the high-pressure intervention condition and operates according to the frequency calculated by the normal requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110306137.XA CN112984706A (en) | 2021-03-23 | 2021-03-23 | Unit type rack air conditioner control system and control method for 5GBBU intelligent cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110306137.XA CN112984706A (en) | 2021-03-23 | 2021-03-23 | Unit type rack air conditioner control system and control method for 5GBBU intelligent cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN112984706A true CN112984706A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110306137.XA Pending CN112984706A (en) | 2021-03-23 | 2021-03-23 | Unit type rack air conditioner control system and control method for 5GBBU intelligent cabinet |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807979A (en) * | 2014-02-28 | 2014-05-21 | 青岛海信日立空调系统有限公司 | Multi-union variable frequency air conditioner based on micro-channel heat exchanger and control method thereof |
| JP2016128302A (en) * | 2015-01-09 | 2016-07-14 | 三菱電機株式会社 | Air conditioner |
| JP2017180882A (en) * | 2016-03-28 | 2017-10-05 | 東芝キヤリア株式会社 | Air conditioning device |
| CN107255340A (en) * | 2017-06-14 | 2017-10-17 | 青岛海尔空调器有限总公司 | Prevent the control method and control system of the overheat of compressor of transducer air conditioning |
| CN111271836A (en) * | 2019-12-30 | 2020-06-12 | 宁波奥克斯电气股份有限公司 | Control method and device, air conditioner and computer readable storage medium |
-
2021
- 2021-03-23 CN CN202110306137.XA patent/CN112984706A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807979A (en) * | 2014-02-28 | 2014-05-21 | 青岛海信日立空调系统有限公司 | Multi-union variable frequency air conditioner based on micro-channel heat exchanger and control method thereof |
| JP2016128302A (en) * | 2015-01-09 | 2016-07-14 | 三菱電機株式会社 | Air conditioner |
| JP2017180882A (en) * | 2016-03-28 | 2017-10-05 | 東芝キヤリア株式会社 | Air conditioning device |
| CN107255340A (en) * | 2017-06-14 | 2017-10-17 | 青岛海尔空调器有限总公司 | Prevent the control method and control system of the overheat of compressor of transducer air conditioning |
| CN111271836A (en) * | 2019-12-30 | 2020-06-12 | 宁波奥克斯电气股份有限公司 | Control method and device, air conditioner and computer readable storage medium |
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Application publication date: 20210618 |