CN114811850A - Air conditioner ice melting method and device and air conditioner - Google Patents

Air conditioner ice melting method and device and air conditioner Download PDF

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Publication number
CN114811850A
CN114811850A CN202210461349.XA CN202210461349A CN114811850A CN 114811850 A CN114811850 A CN 114811850A CN 202210461349 A CN202210461349 A CN 202210461349A CN 114811850 A CN114811850 A CN 114811850A
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China
Prior art keywords
air
fan
air conditioner
ice melting
heat exchange
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CN202210461349.XA
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Chinese (zh)
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CN114811850B (en
Inventor
段晓丽
王红卫
郭杰
郭爽
赵超
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Suzhou Inspur Intelligent Technology Co Ltd
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Suzhou Inspur Intelligent Technology Co Ltd
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Publication of CN114811850A publication Critical patent/CN114811850A/en
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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
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/42—Defrosting; Preventing freezing of outdoor units
    • 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
    • F24F11/62—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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner ice melting method and device and an air conditioner. Relates to the technical field of air conditioner control. Judging whether the heat exchange core meets a first ice melting condition or not; and if the first ice melting condition is met, controlling the first air valve to be opened, and controlling the fan of one fan set in the first fan set and the second fan set to rotate forwards and the fan of the other fan set to rotate backwards. Aiming at the problem that a heat exchange core of an air conditioner freezes, the air conditioner is maintained in an automatic deicing mode, one part of air flow in an air exhaust cavity where a forward rotating fan is located flows to the outside, the other part of air flow flows through the heat exchange core through an air exhaust cavity where a reverse rotating fan is located, so that the heat exchange core is defrosted, the air conditioner cannot stop refrigeration when the air conditioner defrosts, a machine room overtemperature, a local hot point of the machine room and IT equipment cannot be caused to directly shut down, and meanwhile, manpower resources are saved due to automatic deicing.

Description

Air conditioner ice melting method and device and air conditioner
Technical Field
The invention relates to the technical field of air conditioner control, in particular to an air conditioner ice melting method and device and an air conditioner.
Background
With the continuous development of 5G, cloud computing and big data, a data center is used as a data hub and an application carrier, is an infrastructure for bearing digital computing power and information systems of various industries, and is an important precondition for building an information platform. In recent years, market demand and overall size of data centers will exhibit a continuous, high-speed rising situation. With the continuous increase of data center traffic, IT equipment continuously evolves towards high computing power and high power density, and the power of a CPU and a server is continuously improved, which provides greater challenges for other auxiliary equipment of a data center, especially refrigeration equipment, and the refrigeration equipment such as an air conditioner and the like must be ensured to continuously refrigerate all the year round to prevent the problems of server overtemperature and local hot spots of a machine room.
The operation reliability of the air conditioner in an outdoor low-temperature scene is very important, and the icing of a heat exchange core of the air conditioner can be caused by the excessively low outdoor temperature in winter, so that the performance of the air conditioner is deteriorated and the cooling is insufficient, and the overtemperature of a server and the local hot spot of a machine room are caused. At present, the problem of icing of a heat exchange core of an air conditioner can only be maintained in an artificial ice melting or natural ice melting mode, the mode can cause long-time overtemperature of a machine room, local hot spots of the machine room and even direct downtime of IT equipment, and meanwhile, artificial ice melting needs to invest a large amount of time and energy.
Disclosure of Invention
The invention aims to provide an air conditioner ice melting method, an air conditioner ice melting device and an air conditioner.
In order to solve the technical problem, the invention provides an ice melting method for an air conditioner, which is applied to a processor of the air conditioner, wherein the air conditioner further comprises an air conditioner shell, a heat exchange core arranged in the air conditioner shell, a first air valve, a first fan set, a second fan set and a plurality of partition plates, the heat exchange core and the partition plates divide the interior of the air conditioner shell to form an air exhaust cavity and a fresh air cavity, the air exhaust cavity is divided by the heat exchange core and the partition plates to form a first air exhaust cavity and a second air exhaust cavity, the first fan set is arranged in the first air exhaust cavity, the second fan set is arranged in the second air exhaust cavity, the first air valve is arranged on the partition plate between the first air exhaust cavity and the second air exhaust cavity, and the processor is respectively connected with the first fan set, the second fan set and the first air valve; the air conditioner ice melting method comprises the following steps:
judging whether the heat exchange core meets a first ice melting condition or not;
and if the first ice melting condition is met, controlling a first air valve to be opened, and controlling the fan of one fan set in the first fan set and the second fan set to rotate forwards and the fan of the other fan set to rotate backwards so that part of air flow in the exhaust cavity where the fan is located in the forward rotation mode flows to the outside, and the other part of air flow flows through the heat exchange core through the exhaust cavity where the fan is located in the reverse rotation mode.
Preferably, the determining that the heat exchange core meets the first ice melting condition includes:
judging whether a heat exchange core ice melting instruction sent by a user is received;
and if so, judging that the heat exchange core meets a first ice melting condition.
Preferably, the air conditioner further comprises a first temperature and humidity sensor, a second temperature and humidity sensor, a first temperature sensor and a second temperature sensor which are arranged on the side of the heat exchange core forming the fresh air cavity, the fresh air cavity is divided by the heat exchange core and the clapboard to form a first fresh air cavity and a second fresh air cavity, the first temperature sensor is arranged in the first fresh air cavity, the second temperature sensor is arranged in the second fresh air cavity, the inside of the air conditioner shell is also divided by the heat exchange core and a plurality of clapboards to form an air return cavity and an air supply cavity, the first temperature and humidity sensor is arranged in the air return cavity, the second temperature and humidity sensor is arranged in the air supply cavity, the processor is respectively connected with the first temperature sensor, the second temperature sensor, the first temperature and humidity sensor and the second temperature and humidity sensor;
judging that the heat exchange core meets a first ice melting condition, comprising the following steps:
acquiring a first moisture content through the first temperature and humidity sensor and acquiring a second moisture content through the second temperature and humidity sensor;
when it is determined that the first moisture content is greater than the second moisture content, acquiring a first temperature at the side edge by the first temperature sensor and a second temperature at the side edge by the second temperature sensor;
judging whether a temperature value lower than a preset icing temperature exists in the first temperature and the second temperature or not;
and if so, judging that the heat exchange core meets a first ice melting condition.
Preferably, the air conditioner further comprises a second air valve and a filter screen arranged at the position of the cavity opening of the fresh air cavity, the second air valve is arranged on a partition plate between the first fresh air cavity and the second fresh air cavity, and the second air valve is connected with the processor;
the method comprises the following steps of controlling a first air valve to be opened, controlling the fan of one fan set in the first fan set and the second fan set to rotate forwards, and controlling the fan of the other fan set to rotate backwards, and further comprising:
judging whether the filter screen meets a second ice melting condition or not;
and if the second ice melting condition is met, controlling the second air valve to be closed so that part of air flow of the air exhaust cavity flows through the filter screen through the reversed fan.
Preferably, the determining that the filter screen meets the second ice melting condition includes:
judging whether a filter screen ice melting instruction sent by a user is received;
and if so, judging that the filter screen meets a second ice melting condition.
Preferably, the air conditioner further comprises a first differential pressure sensor, a second differential pressure sensor and a third temperature sensor, the first differential pressure sensor is arranged on the filter screen of the first fresh air cavity, the second differential pressure sensor is arranged on the filter screen of the second fresh air cavity, the third temperature sensor is arranged on the filter screen and outside the filter screen, the pressure tapping pipe of the first differential pressure sensor and the pressure tapping pipe of the second differential pressure sensor are both arranged on two sides of the filter screen, and the processor is respectively connected with the first differential pressure sensor and the second differential pressure sensor;
judging that the filter screen meets a second ice melting condition, comprising:
acquiring a first differential pressure through the first differential pressure sensor and acquiring a second differential pressure through the second differential pressure sensor;
acquiring outdoor temperature through the third temperature sensor;
judging whether the first pressure difference or the second pressure difference is simultaneously met, wherein the pressure difference value is higher than a pressure difference preset threshold value, and the outdoor temperature is lower than a preset icing temperature;
and if so, judging that the filter screen meets a second ice melting condition.
Preferably, after the heat exchange core is judged to meet the ice melting condition, the method further comprises the step of controlling a prompt module to give a prompt.
Preferably, the controlling the fan of one of the first fan set and the second fan set to rotate forward and the fan of the other fan set to rotate backward includes:
and controlling the fan of the first fan set to rotate forwards and controlling the fan of the second fan set to rotate backwards in the first half period of each control period, and controlling the fan of the first fan set to rotate backwards and controlling the fan of the second fan set to rotate forwards in the second half period of each control period.
In order to solve the technical problem, the invention also provides an air conditioner ice melting device, which comprises:
a memory for storing a computer program;
and the processor is used for executing the computer program to realize the steps of the air conditioner ice melting method.
In order to solve the technical problem, the invention further provides an air conditioner, which comprises the air conditioner ice melting device, an air conditioner shell, a heat exchange core, a first air valve, a first fan set, a second fan set and a plurality of partition plates, wherein the heat exchange core, the first air valve, the second air valve, the first fan set and the plurality of partition plates are arranged in the air conditioner shell, the heat exchange core and the plurality of partition plates are arranged in the air conditioner shell to form an exhaust cavity and a fresh air cavity, the exhaust cavity is divided by the heat exchange core and the partition plates to form a first exhaust cavity and a second exhaust cavity, the first fan set is arranged in the first exhaust cavity, the second fan set is arranged in the second exhaust cavity, the first air valve is arranged on the partition plate between the first exhaust cavity and the second exhaust cavity, and the processor is respectively connected with the first fan set, the second fan set and the first air valve.
The application provides an air conditioner ice melting method and device and an air conditioner. Judging whether the heat exchange core meets a first ice melting condition or not; if the first ice melting condition is met, the first air valve is controlled to be opened, and the fan of one fan set in the first fan set and the second fan set is controlled to rotate forwards, and the fan of the other fan set is controlled to rotate backwards. Aiming at the problem that a heat exchange core of an air conditioner freezes, the air conditioner is maintained in an automatic deicing mode, one part of air flow in an air exhaust cavity where a forward rotating fan is located flows to the outside, the other part of air flow flows through the heat exchange core through an air exhaust cavity where a reverse rotating fan is located, so that the heat exchange core is defrosted, the air conditioner cannot stop refrigeration when the air conditioner defrosts, a machine room overtemperature, a local hot point of the machine room and IT equipment cannot be caused to directly shut down, and meanwhile, manpower resources are saved due to automatic deicing.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a flow chart of a method for melting ice of an air conditioner according to the present invention;
fig. 2 is a front view of an air conditioner according to the present invention;
fig. 3 is a top view of an air conditioner according to the present invention;
fig. 4 is a schematic structural diagram of an air conditioner ice melting device provided by the invention.
Detailed Description
The core of the invention is to provide an air conditioner ice melting method, an air conditioner ice melting device and an air conditioner, wherein the air conditioner is maintained in an automatic ice melting mode, the air conditioner does not stop refrigeration during ice melting, the overtemperature of a machine room, local hot spots of the machine room and direct downtime of IT equipment are avoided, and meanwhile, the manpower resources are saved due to automatic ice melting.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a flowchart of an ice melting method for an air conditioner according to the present invention, fig. 2 is a front view of an air conditioner according to the present invention, and fig. 3 is a top view of an air conditioner according to the present invention. The air conditioner also comprises an air conditioner shell, a heat exchange core 1, a first air valve K1, a first fan set X1, a second fan set X2 and a plurality of partition plates, wherein the heat exchange core 1, the first air valve K1, the first fan set X1, the second fan set X2 and the plurality of partition plates are arranged in the air conditioner shell, the heat exchange core 1 and the plurality of partition plates are used for separating an air exhaust cavity and a fresh air cavity, the air exhaust cavity is separated by the heat exchange core 1 and the partition plates to form a first air exhaust cavity and a second air exhaust cavity, the first fan set X1 is arranged in the first air exhaust cavity, the second fan set X2 is arranged in the second air exhaust cavity, a first air valve K1 is arranged on the partition plate between the first air exhaust cavity and the second air exhaust cavity, and the processor 11 is respectively connected with the first fan set X1, the second fan set X2 and the first air valve K1;
the air conditioner ice melting method comprises the following steps:
s11: judging whether the heat exchange core 1 meets a first ice melting condition or not, if so, entering S12;
s12: the first air valve K1 is controlled to be opened, the fans of one fan set of the first fan set X1 and the second fan set X2 are controlled to rotate forwards, the fans of the other fan set rotate backwards, so that part of air flow in the exhaust cavity where the fans rotate forwards flows to the outside, and the other part of air flow flows through the heat exchange core 1 through the exhaust cavity where the fans rotate backwards.
In the method, after the heat exchange core 1 of the air conditioner meets a first ice melting condition, the ice melting can be carried out on the heat exchange core 1, the processor 11 of the air conditioner controls the first air valve K1 arranged on the partition plate between the first exhaust cavity and the second exhaust cavity to be opened, then the fan of one fan set of the first fan set X1 and the second fan set X2 is controlled to rotate forwards, the fan of the other fan set rotates backwards, the air conditioner still has the refrigeration function under the control, the temperature reduction of a machine room is maintained, the local hot spot of the machine room is prevented, the IT equipment is prevented from being crashed, the airflow of the exhaust cavity where the reverse fan is positioned flows back to the heat exchange core 1 from the exhaust cavity, the airflow flows to a fresh air cavity which exceeds the position of the heat exchange core 1 through the heat exchange core 1, the temperature of the part of the airflow flowing back is higher than the preset icing temperature, the ice melting position of the heat exchange core 1 can be carried out automatically, the ice melting can not work due to icing is ensured, compared with the artificial ice melting or natural ice melting in the prior art, the air conditioner has the advantages that the normal refrigeration of the air conditioner is not required to be stopped, and the refrigeration reliability of the air conditioner is improved.
Specifically, when the airflow of the fresh air cavity flows through the heat exchange core 1 and enters the air exhaust cavity, the temperature rises, when a first ice melting condition is met, the first air valve K1 is controlled to be opened, the first air exhaust cavity and the second air exhaust cavity are communicated, the fan of one of the first fan set X1 and the second fan set X2 is controlled to rotate forwards, the fan of the other fan set rotates backwards, the reversed fan enables the airflow after the temperature rises to be blown back to the heat exchange core 1 to melt ice for the heat exchange core 1, ice melting is achieved without other external factors, the ice melting is achieved by utilizing the airflow inside the air conditioner, the airflow can be recycled, the utilization rate of the airflow is improved, and the reliability of the scheme is improved.
It should be noted that, the heat exchange core 1 is a core component of indirect heat exchange of the air conditioner, and a plurality of partition wall heat exchange interlayers are arranged inside the heat exchange core 1, so that the structure ensures that the air of the inner and outer flow passages only does heat exchange but not mass exchange, thereby realizing the refrigeration effect of the air conditioner.
In addition, the preset icing temperature is not necessarily 0 ℃ which is common, and can be set according to actual conditions, the setting is equivalent to setting a temperature protection interval, and the ice melting action delay problem caused by temperature measurement deviation of a sensor or uneven temperature distribution of a wind field can be avoided due to the setting of the protection interval.
The first air damper K1 may be directly controlled by the processor 11, for example, the first air damper K1 may be an electromagnetic air damper, or the processor 11 may control an electric actuator to control the opening and closing of the first air damper K1.
It should be noted that fig. 2 is limited to the space shown in the figures, and the processor 11 is shown here in the form of a circle with reference numbers.
It should be noted that the number of fans in the fan group is not uniquely determined, and may be set according to actual situations, and is not limited herein.
In general, the present application provides a method for ice melting in an air conditioner. Judging whether the heat exchange core 1 meets a first ice melting condition; if the first ice melting condition is met, the first air valve K1 is controlled to be opened, and the fan of one of the first fan set X1 and the second fan set X2 is controlled to rotate forwards, and the fan of the other fan set rotates backwards. The air conditioner has the advantages that the icing problem of the heat exchange core 1 of the air conditioner is solved in an automatic deicing mode, one part of air flow in the air exhaust cavity where the forward rotating fan is located flows outdoors, the other part of air flow flows through the air exhaust cavity where the reverse rotating fan is located through the heat exchange core 1 to enable the heat exchange core 1 to be iced, the air conditioner cannot stop refrigeration when the air conditioner is iced, the machine room cannot be over-heated, local hot spots of the machine room and direct downtime of IT equipment are avoided, and meanwhile manpower resources are saved due to automatic deicing.
On the basis of the above-described embodiment:
as a preferred embodiment, the determination that the heat exchange core 1 satisfies the first ice melting condition includes:
judging whether an ice melting instruction of the heat exchange core 1 sent by a user is received;
if yes, the heat exchange core 1 is judged to meet the first ice melting condition.
For example, the user sends the ice melting instruction of the heat exchange core 1 to the processor 11 through a key on the air conditioner, a remote controller of the air conditioner or other control equipment, at the angle of the air conditioner control mode, that is, the user can control whether to start the ice melting mode, when the ice melting mode is started, it is determined that the heat exchange core 1 meets the first ice melting condition, the user can start the ice melting mode in different modes, the selectivity of the user is improved, and the flexibility of the scheme is improved.
It should be noted that, in the manual mode, all parameter variables can be manually set.
As a preferred embodiment, the air conditioner further includes a first temperature and humidity sensor F1, a second temperature and humidity sensor F2, a first temperature sensor T1 and a second temperature sensor T2 which are arranged on the side of a heat exchange core 1 forming a fresh air cavity, the fresh air cavity is partitioned by the heat exchange core 1 and partition plates to form a first fresh air cavity and a second fresh air cavity, the first temperature sensor T1 is arranged in the first fresh air cavity, the second temperature sensor T2 is arranged in the second fresh air cavity, the air conditioner shell is further partitioned by the heat exchange core 1 and a plurality of partition plates to form an air return cavity and an air supply cavity, the first temperature and humidity sensor F1 is arranged in the air return cavity, the second temperature and humidity sensor F2 is arranged in the air supply cavity, and the processor 11 is connected with the first temperature sensor T1, the second temperature sensor T2, the first temperature and humidity sensor F1 and the second temperature and humidity sensor F2 respectively;
judging that the heat exchange core 1 meets a first ice melting condition comprises the following steps:
acquiring a first moisture content through a first temperature and humidity sensor F1 and acquiring a second moisture content through a second temperature and humidity sensor F2;
when it is determined that the first moisture content is greater than the second moisture content, acquiring a first temperature at the side edge by the first temperature sensor T1 and a second temperature at the side edge by the second temperature sensor T2;
judging whether a temperature value lower than a preset icing temperature exists in the first temperature and the second temperature or not;
if yes, the heat exchange core 1 is judged to meet the first ice melting condition.
In an automatic mode, a first moisture content can be obtained according to a first temperature and humidity sensor F1, a second moisture content can be obtained through a second temperature and humidity sensor F2, the moisture contents of an air cavity and an air supply cavity are respectively obtained, if the first moisture content is larger than the second moisture content, the humidity on one side of the air return cavity is higher, it is judged that condensation is generated on the air return side of a machine room at the moment, the heat exchange core 1 has a risk of freezing, at the moment, a first temperature on the side is obtained through a first temperature sensor T1, a second temperature on the side is obtained through a second temperature sensor T2, if a temperature value lower than a preset freezing temperature exists in the first temperature and the second temperature, the heat exchange core 1 is judged to be frozen, at the moment, it is judged that the heat exchange core 1 meets a first ice melting condition, a first air valve K1 is controlled to be opened, and the fans of one of a first fan group X1 and a second fan group X2 are controlled to rotate forwards, and the fan of the other fan set is inverted to melt ice on the heat exchange core 1.
It should be noted that, in the automatic mode, the ice melting of the air conditioner can be controlled in a programmed manner to achieve automatic ice melting.
It should be noted that, specifically, two temperature sensors are arranged in a mirror image manner along the width direction of the heat exchange core 1. In addition, when the number of the temperature sensors is 2n, n is a positive integer, and n > 1, the processor 11 calculates the average temperature of the plurality of temperature sensors as the temperature measurement value of the whole.
It should be noted that the side of the heat exchange core 1 forming the fresh air chamber is the lowest temperature point, because the position is close to the fresh air chamber and the air supply chamber.
It should be noted that fig. 2 and 3 are limited to the space shown in the figures, and the processor 11 is given by the form of a circle and a reference numeral.
As a preferred embodiment, the air conditioner further comprises a second air valve K2 and a filter screen 2 arranged at the mouth of the fresh air cavity, the second air valve K2 is arranged on the partition board between the first fresh air cavity and the second fresh air cavity, and the second air valve K2 is connected with the processor 11;
after the first air valve K1 is controlled to be opened, and the fans of one of the first fan set X1 and the second fan set X2 are controlled to rotate forwards, and the fans of the other fan set rotate backwards, the method further comprises the following steps:
judging whether the filter screen 2 meets a second ice melting condition;
if the second ice melting condition is met, the second air valve K2 is controlled to be closed, so that part of air flow of the air exhaust cavity flows through the filter screen 2 through the reversed fan.
The filter screen 2 may be frozen, so that after the first air valve K1 is controlled to be opened, and the fan of one of the first fan set X1 and the second fan set X2 is controlled to rotate forward, and the fan of the other fan set rotates backward, namely after the heat exchange core 1 is melted with ice, the filter screen 2 can be melted with ice, whether the filter screen 2 meets the second ice melting condition is judged, when the second ice melting condition is met, a second air valve K2 arranged on the partition plate between the first fresh air cavity and the second fresh air cavity is controlled to be closed, so that a part of the air flow in the discharge chamber flows through the filter screen 2 by the counter-rotating fan, i.e. after closing the second air flap K2, the reversed fan blows the air flow with the temperature higher than the preset freezing temperature in the exhaust cavity back to the heat exchange core 1, and continuously blowing the air to the filter screen 2 at the position of the fresh air cavity, so that the air flow flows through the filter screen 2 to melt the ice on the filter screen 2. The reliability of the scheme is improved.
In addition, when the filter screen 2 is judged not to meet the second ice melting condition, the second air valve K2 is controlled to be opened, so that the air flow of the exhaust air heated by the heat exchange core 1 is mixed with the fresh air and then enters the heat exchange core 1 again for heat exchange, re-filtration is not needed, and the service cycle of the filter screen 2 is prolonged.
In addition, when the filter screen 2 is frozen, namely when the filter screen 2 is judged to meet the second ice melting condition, a dirty block alarm is also reported through the processor 11, so that the completeness of the scheme is improved.
It should be noted that fig. 3 is limited to the space shown in the figures, and the processor 11 is given as a circle with reference numbers.
As a preferred embodiment, the determining that the filter screen 2 satisfies the second ice-melting condition includes:
judging whether a filter screen 2 ice melting instruction sent by a user is received;
if yes, the filter screen 2 is judged to meet the second ice melting condition.
Judging that the filter screen 2 meets the second ice melting condition can be that an ice melting instruction of the filter screen 2 sent by a user is received, and particularly, the control of a manual mode is realized, for example, the user sends the ice melting instruction of the filter screen 2 to the processor 11 through a key on an air conditioner, a remote controller of the air conditioner or other control equipment, at the angle of the control mode of the air conditioner, namely, the user can control whether to start the ice melting mode of the filter screen 2, when the ice melting mode of the filter screen 2 is started, the filter screen 2 meets the second ice melting condition is judged, the user can start the ice melting mode in different modes, the selectivity of the user is improved, and the flexibility of the scheme is improved.
As a preferred embodiment, the air conditioner further includes a first differential pressure sensor P1, a second differential pressure sensor P2, and a third temperature sensor T3, the first differential pressure sensor P1 is disposed on the filter screen 2 of the first fresh air chamber, the second differential pressure sensor P2 is disposed on the filter screen 2 of the second fresh air chamber, the third temperature sensor T3 is disposed on the filter screen 2 and outside the filter screen 2, the pressure tapping pipe of the first differential pressure sensor P1 and the pressure tapping pipe of the second differential pressure sensor P2 are both disposed on both sides of the filter screen 2, and the processor 11 is connected to the first differential pressure sensor P1 and the second differential pressure sensor P2 respectively;
judging that the filter screen 2 meets a second ice melting condition, comprising:
acquiring a first differential pressure by a first differential pressure sensor P1 and a second differential pressure by a second differential pressure sensor P2;
acquiring outdoor temperature through a third temperature sensor T3;
judging whether the first pressure difference or the second pressure difference is simultaneously met and is higher than a pressure difference value of a pressure difference preset threshold value and the outdoor temperature is lower than a preset icing temperature;
if yes, the filter screen 2 is judged to meet the second ice melting condition.
Under the automatic mode, can obtain first pressure differential and obtain the second pressure differential through second pressure differential sensor P2 according to first pressure differential sensor P1, obtain filter screen 2 both sides promptly also be the pressure differential value inside and outside the fresh air chamber of air conditioner, if there is the pressure differential value that is higher than the pressure differential preset threshold value in first pressure differential and the second pressure differential, and the outdoor temperature that obtains through third temperature sensor T3 is less than preset icing temperature and explains that filter screen 2 can freeze, filter screen 2 can appear the ice jam condition, at this moment, judge that filter screen 2 satisfies second ice-melt condition, and then control second air valve K2 closes, so that it flows through filter screen 2 through the fan that reverses to exhaust a part of air current in the chamber, automatic control carries out the ice-melt for filter screen 2, the degree of automation of scheme has been improved.
It should be noted that fig. 3 is limited to the space shown in the figures, and the processor 11 is given as a circle with reference numbers.
As a preferred embodiment, after determining that the heat exchange core 1 meets the ice melting condition, the method further comprises controlling a prompt module to send a prompt.
Judge that heat exchange core 1 satisfies the ice-melt condition, control suggestion module and send the suggestion, suggestion user this moment heat exchange core 1 has iced or has possessed the condition of icing completely for the user can know the actual use condition of air conditioner at the very first time, perhaps carries out subsequent processing to this, user's experience has been improved, in addition, the suggestion module is not limited to single condition, can be the luminous suggestion of pilot lamp, one or more in the voice prompt or the display module demonstration, user's selectivity has been improved.
As a preferred embodiment, controlling the forward rotation of the fan of one of the first fan group X1 and the second fan group X2 and controlling the reverse rotation of the fan of the other fan group includes:
the fan of the first fan set X1 is controlled to rotate forwards and the fan of the second fan set X2 is controlled to rotate backwards in the first half period of each control period, and the fan of the first fan set X1 is controlled to rotate backwards and the fan of the second fan set X2 is controlled to rotate forwards in the second half period of each control period.
When the fans of the first fan group X1 and the second fan group X2 are controlled to rotate forwards, and the fans of the other fan group are controlled to rotate backwards to melt ice for the heat exchange core 1, the fans of the first fan group X1 can be controlled to rotate forwards and the fans of the second fan group X2 can be controlled to rotate backwards in the first half period of each control period, the fans of the first fan group X1 are controlled to rotate backwards and the fans of the second fan group X2 can be controlled to rotate forwards, the fans of the first fan group X1 and the fans of the second fan group X2 are specifically not limited, and the purpose of changing the rotation direction of the fans in one control period is to enable the ice melting of the heat exchange core 1 to be more sufficient, and the reliability of the scheme is improved.
It should be noted that the rotating speed of the fan in forward rotation is greater than that of the fan in reverse rotation, which is beneficial to maintaining the refrigeration function of the air conditioner.
It should be noted that the exhaust fan executing the positive rotation is the demand control, including but not limited to the air supply temperature control, the return air temperature difference ratio control, etc.; the air exhaust fan executing reverse rotation ice melting is controlled to be at the lowest wall surface temperature, load and unload are carried out according to the control target value of the lowest wall surface temperature, and the rotating speed of the air exhaust fan is limited to be not higher than that of the fan executing forward rotation.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an air conditioner ice melting device provided by the present invention.
In order to solve the technical problem, the invention also provides an air conditioner ice melting device, which comprises:
a memory 12 for storing a computer program;
and the processor 11 is used for executing the computer program to realize the steps of the air conditioner ice melting method.
For the introduction of the air conditioner ice melting device provided by the present invention, please refer to the above embodiment of the air conditioner ice melting method, which is not described herein again.
In order to solve the technical problem, the invention further provides an air conditioner, which comprises the air conditioner ice melting device, an air conditioner shell, a heat exchange core, a first air valve, a first fan set, a second fan set and a plurality of partition plates, wherein the heat exchange core, the first air valve, the second air valve, the first fan set and the plurality of partition plates are arranged in the air conditioner shell, the heat exchange core and the plurality of partition plates are arranged in the air conditioner shell to form an exhaust cavity and a fresh air cavity, the exhaust cavity is divided by the heat exchange core and the partition plates to form a first exhaust cavity and a second exhaust cavity, the first fan set is arranged in the first exhaust cavity, the second fan set is arranged in the second exhaust cavity, the first air valve is arranged on the partition plate between the first exhaust cavity and the second exhaust cavity, and the processor is respectively connected with the first fan set, the second fan set and the first air valve.
For the introduction of the wind power generator system provided by the present invention, please refer to the above embodiment of the air conditioner ice melting device, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

Claims (10)

1. The ice melting method of the air conditioner is characterized by being applied to a processor of the air conditioner, wherein the air conditioner further comprises an air conditioner shell, a heat exchange core, a first air valve, a first fan set, a second fan set and a plurality of partition plates, the heat exchange core, the first air valve, the second fan set and the plurality of partition plates are arranged in the air conditioner shell, the heat exchange core and the plurality of partition plates are arranged in the air conditioner shell to divide the air exhaust cavity and the fresh air cavity, the air exhaust cavity is divided by the heat exchange core and the partition plates to form a first air exhaust cavity and a second air exhaust cavity, the first fan set is arranged in the first air exhaust cavity, the second fan set is arranged in the second air exhaust cavity, the first air valve is arranged on the partition plate between the first air exhaust cavity and the second air exhaust cavity, and the processor is respectively connected with the first fan set, the second fan set and the first air valve; the air conditioner ice melting method comprises the following steps:
judging whether the heat exchange core meets a first ice melting condition or not;
if the first ice melting condition is met, the first air valve is controlled to be opened, the fan of one fan group in the first fan group and the second fan group is controlled to rotate forwards, the fan of the other fan group rotates backwards, so that part of air flow in the air exhaust cavity where the fan rotates forwards flows outdoors, and the other part of air flow flows through the heat exchange core through the air exhaust cavity where the fan rotates backwards.
2. The air conditioner ice melting method of claim 1, wherein determining that the heat exchange core meets a first ice melting condition comprises:
judging whether a heat exchange core ice melting instruction sent by a user is received;
and if so, judging that the heat exchange core meets a first ice melting condition.
3. The ice-melting method of the air conditioner as claimed in claim 1, wherein the air conditioner further comprises a first temperature and humidity sensor, a second temperature and humidity sensor, a first temperature sensor and a second temperature sensor arranged at the side of the heat exchange core forming the fresh air cavity, the fresh air cavity is divided by the heat exchange core and the partition plates to form a first fresh air cavity and a second fresh air cavity, the first temperature sensor is arranged in the first fresh air cavity, the second temperature sensor is arranged in the second fresh air cavity, the air conditioner shell is further divided by the heat exchange core and the partition plates to form an air return cavity and an air supply cavity, the first temperature and humidity sensor is arranged in the air return cavity, the second temperature and humidity sensor is arranged in the air supply cavity, and the processor is respectively connected with the first temperature sensor and the second temperature sensor, The first temperature and humidity sensor is connected with the second temperature and humidity sensor;
judging that the heat exchange core meets a first ice melting condition, comprising the following steps:
acquiring a first moisture content through the first temperature and humidity sensor and acquiring a second moisture content through the second temperature and humidity sensor;
when it is determined that the first moisture content is greater than the second moisture content, acquiring a first temperature at the side edge by the first temperature sensor and a second temperature at the side edge by the second temperature sensor;
judging whether a temperature value lower than a preset icing temperature exists in the first temperature and the second temperature or not;
and if so, judging that the heat exchange core meets a first ice melting condition.
4. The air conditioner ice melting method as claimed in claim 1, wherein the air conditioner further comprises a second air valve and a filter screen arranged at the opening of the fresh air cavity, the second air valve is arranged on a partition plate between the first fresh air cavity and the second fresh air cavity, and the second air valve is connected with the processor;
the method comprises the following steps of controlling a first air valve to be opened, controlling the fan of one fan set in the first fan set and the second fan set to rotate forwards, and controlling the fan of the other fan set to rotate backwards, and further comprising:
judging whether the filter screen meets a second ice melting condition or not;
and if the second ice melting condition is met, controlling the second air valve to be closed so that part of the air flow of the air exhaust cavity flows through the filter screen through the reversed fan.
5. The air conditioner ice melting method of claim 4, wherein the step of judging that the filter screen meets the second ice melting condition comprises the steps of:
judging whether a filter screen ice melting instruction sent by a user is received;
and if so, judging that the filter screen meets a second ice melting condition.
6. The air conditioner ice melting method as claimed in claim 4, wherein the air conditioner further comprises a first differential pressure sensor, a second differential pressure sensor and a third temperature sensor, the first differential pressure sensor is arranged on the filter screen of the first fresh air cavity, the second differential pressure sensor is arranged on the filter screen of the second fresh air cavity, the third temperature sensor is arranged on the filter screen and outside the filter screen, the pressure taking pipe of the first differential pressure sensor and the pressure taking pipe of the second differential pressure sensor are arranged on two sides of the filter screen, and the processor is respectively connected with the first differential pressure sensor and the second differential pressure sensor;
judging that the filter screen meets a second ice melting condition, comprising:
acquiring a first differential pressure through the first differential pressure sensor and acquiring a second differential pressure through the second differential pressure sensor;
acquiring outdoor temperature through the third temperature sensor;
judging whether the first pressure difference or the second pressure difference is simultaneously met, wherein the pressure difference value is higher than a pressure difference preset threshold value, and the outdoor temperature is lower than a preset icing temperature;
and if so, judging that the filter screen meets a second ice melting condition.
7. The air conditioner ice melting method of claim 1, wherein after determining that the heat exchange core meets the ice melting condition, further comprising controlling a prompt module to send a prompt.
8. The air conditioner ice melting method of any one of claims 1 to 7, wherein controlling the fans of one of the first fan set and the second fan set to rotate in a forward direction and the fans of the other fan set to rotate in a reverse direction comprises:
and controlling the fan of the first fan set to rotate forwards and controlling the fan of the second fan set to rotate backwards in the first half period of each control period, and controlling the fan of the first fan set to rotate backwards and controlling the fan of the second fan set to rotate forwards in the second half period of each control period.
9. An air conditioner ice melting device is characterized by comprising:
a memory for storing a computer program;
a processor for executing the computer program to implement the steps of the air conditioner de-icing method according to any one of claims 1 to 8.
10. An air conditioner, characterized in that, including the ice melting device of the air conditioner as claimed in claim 9, further including an air conditioner casing, a heat exchange core disposed in the air conditioner casing, a first air valve, a first fan set, a second fan set and a plurality of partition boards, the inside of the air conditioner casing is divided by the heat exchange core and the plurality of partition boards to form an exhaust cavity and a fresh air cavity, the exhaust cavity is divided by the heat exchange core and the partition boards to form a first exhaust cavity and a second exhaust cavity, the first fan set is disposed in the first exhaust cavity, the second fan set is disposed in the second exhaust cavity, the first air valve is disposed on the partition board between the first exhaust cavity and the second exhaust cavity, and the processor is connected with the first fan set, the second fan set and the first air valve respectively.
CN202210461349.XA 2022-04-28 2022-04-28 Air conditioner ice melting method and device and air conditioner Active CN114811850B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012189290A (en) * 2011-03-14 2012-10-04 Panasonic Corp Heat exchange ventilation device
CN208253826U (en) * 2018-03-09 2018-12-18 捷通智慧科技股份有限公司 A kind of indirect natural cooling of fresh air and mechanical refrigeration combined unit
CN112797521A (en) * 2020-12-31 2021-05-14 广东申菱环境系统股份有限公司 Indirect evaporative cooling device capable of preventing condensation and frosting
CN112954955A (en) * 2021-01-25 2021-06-11 华为技术有限公司 Cooling system and data center
CN213841224U (en) * 2020-07-27 2021-07-30 中国联合网络通信集团有限公司 Air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012189290A (en) * 2011-03-14 2012-10-04 Panasonic Corp Heat exchange ventilation device
CN208253826U (en) * 2018-03-09 2018-12-18 捷通智慧科技股份有限公司 A kind of indirect natural cooling of fresh air and mechanical refrigeration combined unit
CN213841224U (en) * 2020-07-27 2021-07-30 中国联合网络通信集团有限公司 Air conditioner
CN112797521A (en) * 2020-12-31 2021-05-14 广东申菱环境系统股份有限公司 Indirect evaporative cooling device capable of preventing condensation and frosting
CN112954955A (en) * 2021-01-25 2021-06-11 华为技术有限公司 Cooling system and data center

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