CN113251564A - Method and device for automatically identifying temperature sensing bulb and air conditioning system - Google Patents

Method and device for automatically identifying temperature sensing bulb and air conditioning system Download PDF

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Publication number
CN113251564A
CN113251564A CN202110626772.6A CN202110626772A CN113251564A CN 113251564 A CN113251564 A CN 113251564A CN 202110626772 A CN202110626772 A CN 202110626772A CN 113251564 A CN113251564 A CN 113251564A
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Prior art keywords
bulb
temperature
thermal
temperature sensing
thermal bulb
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CN202110626772.6A
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CN113251564B (en
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武连发
高晗
焦华超
徐亚平
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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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
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air

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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)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a method and a device for automatically identifying a thermal bulb and an air conditioning system. Wherein, the method comprises the following steps: under the condition that the air conditioning system is started and operated, classifying according to the temperature change condition of the thermal bulbs to be identified to obtain a first type of thermal bulbs and a second type of thermal bulbs, wherein the air conditioning system comprises an outdoor unit and an air processing combination cabinet which are connected; identifying an environmental temperature sensing bulb and an air outlet temperature sensing bulb from a first type of temperature sensing bulb by controlling a fan of the air treatment combination cabinet; and identifying the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb from the second type temperature sensing bulb by controlling the opening degree of the throttling device. The invention can self-adaptively identify and judge the functions of each installed temperature sensing bulb, directly endow the temperature sensing bulb with functions according to the installation position of the temperature sensing bulb, realize the self-identification and positioning of the temperature sensing bulb, and also correctly correlate the temperature value acquired by the temperature sensing bulb with the temperature attribute if the temperature sensing bulb is inserted wrongly, thereby ensuring the correct control parameter of the system, avoiding the need of repeated disassembly and assembly and ensuring the reliability of the system.

Description

Method and device for automatically identifying temperature sensing bulb and air conditioning system
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a device for automatically identifying a thermal bulb and an air conditioning system.
Background
At present, the air conditioning scheme of the multi-connected air conditioning outdoor unit matched with the air treatment combination cabinet is more and more applied to large and medium-sized energy-saving buildings. In order to adjust the refrigerant circulation volume of a heat exchanger in an Air treatment combined cabinet, an adjustment control device, namely AHU-KIT, is generally introduced in the industry and used for connecting a multi-connected outdoor Unit and the Air treatment combined cabinet, wherein the AHU is an abbreviation of an Air Handler Unit, and Chinese is an Air treatment Unit.
The AHU-KIT comprises a throttling component and a control component, the AHU-KIT is standard matched with an environment temperature sensing bag, an air outlet temperature sensing bag, a refrigerant inlet pipe temperature sensing bag (which can be recorded as a first refrigerant temperature sensing bag) and a refrigerant outlet pipe temperature sensing bag (which can be recorded as a second refrigerant temperature sensing bag), wherein the refrigerant inlet pipe temperature sensing bag and the refrigerant outlet pipe temperature sensing bag are used for detecting the temperature of a refrigerant entering and exiting the heat exchanger of the air treatment combination cabinet, the flow directions of the refrigerant in the refrigerating mode and the refrigerant in the heating mode are opposite, and the inlet pipe and the outlet pipe are in view of the flow direction of the refrigerant in the refrigerating mode. Different from a common multi-split air conditioning system, the position of the temperature sensing bulb is not well determined when leaving a factory, and the temperature sensing bulb is required to be installed on an air treatment combination cabinet in engineering. Generally, the thermistor of the environment temperature sensing bulb is packaged by a plastic shell, the air outlet temperature sensing bulb, the refrigerant inlet pipe temperature sensing bulb and the refrigerant outlet pipe temperature sensing bulb are all packaged by copper shells, the wire lengths are consistent, and the thermistor is self-assembled in engineering and is easy to be confused. Therefore, when the thermal bulb is installed in engineering connection, the situation of wrong insertion can occur generally because the line length and the appearance are similar, so that the system control parameter is wrong, and the system operation reliability is influenced. If the temperature sensing bulb is inserted wrongly, the temperature sensing bulb needs to be disassembled and assembled again, and the workload of installation personnel is increased.
Disclosure of Invention
The embodiment of the invention provides a method and a device for automatically identifying a thermal bulb and an air-conditioning system, which at least solve the problem that in the prior art, different thermal bulbs are easy to be inserted wrongly when an AHU-KIT is installed in a project, so that the operation reliability of the system is influenced.
In order to solve the above technical problem, an embodiment of the present invention provides a method for automatically identifying a thermal bulb, including:
under the condition that an air conditioning system is started and operated, classifying according to the temperature change condition of a thermal bulb to be identified to obtain a first type of thermal bulb and a second type of thermal bulb, wherein the air conditioning system comprises an outdoor unit and an air treatment combination cabinet which are connected;
identifying an environmental temperature sensing bulb and an air outlet temperature sensing bulb from the first type of temperature sensing bulb by controlling a fan of the air treatment combination cabinet;
and identifying a first refrigerant temperature sensing bulb and a second refrigerant temperature sensing bulb from the second type temperature sensing bulb by controlling the opening degree of the throttling device.
Optionally, classifying according to the temperature change condition of the thermal bulb to be identified to obtain a first type of thermal bulb and a second type of thermal bulb, including:
starting a first throttling device and controlling the fan to be in a closed state, wherein the first throttling device is used for connecting the outdoor unit and the air treatment combination cabinet;
if the time length of the fan in the closed state reaches a first preset time, acquiring the current temperature of the thermal bulb to be identified;
for each temperature sensing bulb, determining the temperature change condition of the temperature sensing bulb according to the initial temperature and the current temperature of the temperature sensing bulb;
if the temperature of the thermal bulb is not changed or the temperature change amplitude is smaller than or equal to a first preset threshold value, determining that the thermal bulb belongs to a first type of thermal bulb;
and if the temperature variation amplitude of the temperature sensing bulb is larger than or equal to a second preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb.
Optionally, before classifying according to the temperature change condition of the thermal bulb to be identified, the method further includes:
after the wiring installation of the air conditioning system is completed, controlling the outdoor unit to start up and operate according to a working mode indicated by a starting instruction, and starting a control component, wherein the control component is in communication connection with the outdoor unit and the first throttling device;
and acquiring the initial temperature of the thermal bulb to be identified.
Optionally, if the temperature variation amplitude of the thermal bulb is greater than or equal to a second preset threshold, determining that the thermal bulb belongs to a second type of thermal bulb, including:
in the refrigeration mode, if the temperature of the temperature sensing bulb is reduced and the temperature reduction amplitude is greater than or equal to the second preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb;
and under the heating mode, if the temperature of the thermal bulb rises and the temperature rise amplitude is larger than or equal to the second preset threshold, determining that the thermal bulb belongs to a second type of thermal bulb.
Optionally, the air handling unit cabinet is configured to control the fan of the air handling unit cabinet to identify the ambient temperature sensing bulb and the air-out temperature sensing bulb from the first type of temperature sensing bulb, including:
controlling the fan to be in an opening state;
if the time length of the fan in the starting state reaches second preset time, acquiring the current temperature of the first-type temperature sensing bulb;
comparing the current temperature of a first thermal bulb in the first type of thermal bulb with the current temperature of a second thermal bulb;
and identifying the environmental temperature sensing bulb and the air outlet temperature sensing bulb according to the comparison result.
Optionally, according to the comparison result discernment environment temperature sensing package and air-out temperature sensing package, include:
in a cooling mode, if the current temperature of the first thermal bulb is higher than the current temperature of the second thermal bulb, determining that the first thermal bulb is an environmental thermal bulb and the second thermal bulb is an air outlet thermal bulb;
in the heating mode, if the current temperature of the first thermal bulb is greater than the current temperature of the second thermal bulb, the first thermal bulb is determined to be an air outlet thermal bulb, and the second thermal bulb is determined to be an environment thermal bulb.
Optionally, according to the comparison result discernment environment temperature sensing package and air-out temperature sensing package, include:
in a cooling mode, if the current temperature of the first thermal bulb is higher than the current temperature of the second thermal bulb, and the difference value between the current temperature of the first thermal bulb and the current temperature of the second thermal bulb is greater than or equal to a third preset threshold value, determining that the first thermal bulb is an environmental thermal bulb, and the second thermal bulb is an air outlet thermal bulb;
in the heating mode, if the current temperature of the first thermal bulb is greater than the current temperature of the second thermal bulb, and the difference value between the current temperature of the first thermal bulb and the current temperature of the second thermal bulb is greater than or equal to a third preset threshold value, it is determined that the first thermal bulb is an air outlet thermal bulb, and the second thermal bulb is an environment thermal bulb.
Optionally, the method for identifying the first refrigerant thermal bulb and the second refrigerant thermal bulb from the second type thermal bulb by controlling the opening degree of the throttling device includes:
determining a throttling device to be adjusted according to the working mode of the air conditioning system, and reducing the opening degree of the throttling device to be adjusted to a preset opening degree;
if the throttle device to be regulated is at the preset opening degree and the time length of the fan in the opening state reaches a third preset time, acquiring the current temperature of the second-type thermal bulb;
comparing the current temperature of a third temperature sensing bulb with the current temperature of a fourth temperature sensing bulb in the second type of temperature sensing bulb;
and identifying the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb according to the comparison result.
Optionally, determining a throttling device to be adjusted according to the operating mode of the air conditioning system includes:
if the working mode is a refrigeration mode, determining that the throttling device to be regulated is a first throttling device, wherein the first throttling device is used for connecting the outdoor unit and the air treatment combination cabinet;
and if the working mode is a heating mode, determining that the throttling device to be adjusted is a second throttling device, wherein the second throttling device is a heating throttling device in the outdoor unit.
Optionally, identifying the first refrigerant thermal bulb and the second refrigerant thermal bulb according to the comparison result includes:
if the current temperature of the third thermal bulb is higher than the current temperature of the fourth thermal bulb, determining that the third thermal bulb is a second refrigerant thermal bulb and the fourth thermal bulb is a first refrigerant thermal bulb; alternatively, the first and second electrodes may be,
and if the current temperature of the third thermal bulb is greater than the current temperature of the fourth thermal bulb, and the difference value between the current temperature of the third thermal bulb and the current temperature of the fourth thermal bulb is greater than or equal to a fourth preset threshold value, determining that the third thermal bulb is a second refrigerant thermal bulb, and the fourth thermal bulb is a first refrigerant thermal bulb.
The embodiment of the invention also provides a device for automatically identifying the thermal bulb, which comprises:
the classification module is used for classifying according to the temperature change condition of the thermal bulb to be identified under the condition that the air conditioning system is started to operate, so as to obtain a first type of thermal bulb and a second type of thermal bulb, wherein the air conditioning system comprises an outdoor unit and an air treatment combination cabinet which are connected;
the first identification module is used for identifying an environmental temperature sensing bulb and an air outlet temperature sensing bulb from the first type of temperature sensing bulb by controlling a fan of the air treatment combination cabinet;
and the second identification module is used for identifying the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb from the second type temperature sensing bulb by controlling the opening of the throttling device.
An embodiment of the present invention further provides an air conditioning system, including: the embodiment of the invention provides a device for automatically identifying a thermal bulb.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for automatically identifying a thermal bulb according to embodiments of the present invention.
By applying the technical scheme of the invention, under the condition that the air conditioning system is started to operate, the temperature change conditions of the temperature sensing bulbs to be identified are firstly classified to obtain the first type of temperature sensing bulbs and the second type of temperature sensing bulbs, then the environmental temperature sensing bulbs and the air outlet temperature sensing bulbs are identified from the first type of temperature sensing bulbs by controlling the fan of the air processing combination cabinet, and the first refrigerant temperature sensing bulbs and the second refrigerant temperature sensing bulbs are identified from the second type of temperature sensing bulbs by controlling the opening degree of the throttling device. The temperature-sensing bulb self-recognition system has the advantages that the functions of the installed temperature-sensing bulbs can be self-adaptively recognized and judged, the temperature-sensing bulbs are directly endowed with functions according to the installation positions of the temperature-sensing bulbs, the self-recognition positioning of the temperature-sensing bulbs is realized, if the temperature-sensing bulbs are inserted by installers in a wrong way, the temperature values acquired by the temperature-sensing bulbs can be correctly associated with the temperature attributes (such as air outlet temperature, ambient temperature, refrigerant inlet/outlet temperature and the like) through the process of automatically recognizing the temperature-sensing bulbs, the system control parameters are guaranteed to be correct, repeated disassembly and assembly are not needed, the working efficiency is improved, the system performance and reliability are improved, and after-sale maintenance is facilitated.
Drawings
FIG. 1 is an engineering connection diagram of an air conditioning system based on AHU-KIT provided by the embodiment of the invention;
FIG. 2 is a flow chart of a method for automatically identifying a bulb according to an embodiment of the present invention;
FIG. 3 is a flowchart of an AHU-KIT-based thermal bulb self-identification positioning control provided by the embodiment of the present invention;
fig. 4 is a block diagram of an apparatus for automatically identifying a thermal bulb according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
Referring to FIG. 1, a schematic diagram of an AHU-KIT based air conditioning system utilizing a regulation control (i.e., AHU-KIT) to connect a multi-connected outdoor unit to an air handling combination cabinet is shown. The AHU-KIT includes a throttling component and a control component. The air treatment combination cabinet is positioned at the indoor side, and a heat exchanger is arranged in the air treatment combination cabinet. This air conditioning system specifically includes: the air conditioning system comprises a multi-connected outdoor unit 1, a throttling component 2 (which can be an electronic expansion valve), an air processing combination cabinet 3, a control component 4, an air outlet temperature sensing bulb 5, a first refrigerant temperature sensing bulb 6, a second refrigerant temperature sensing bulb 7 and an environment temperature sensing bulb 8. The air outlet thermal bulb 5 is installed at an air outlet of the air treatment combination cabinet and used for detecting the temperature (namely the air outlet temperature) at the air outlet of the air treatment combination cabinet. The ambient bulb 8 is used to detect the ambient temperature of the area where the air-handling combination is located. The heat exchanger in the air processing combination cabinet is provided with two ports which are respectively connected with the multi-connected outdoor unit 1 through two refrigerant pipelines, and a first refrigerant temperature sensing bulb 6 and a second refrigerant temperature sensing bulb 7 are respectively arranged on the two refrigerant pipelines and used for detecting the temperature of the refrigerant pipelines in which the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb are respectively arranged, namely the temperature of the refrigerant entering and exiting the heat exchanger in the air processing combination cabinet. In fig. 1, in the cooling mode, the first refrigerant thermal bulb 6 is used for detecting the temperature of the refrigerant entering the heat exchanger in the air processing combination cabinet, and the second refrigerant thermal bulb 7 is used for detecting the temperature of the refrigerant flowing out of the heat exchanger in the air processing combination cabinet; in the heating mode, the first refrigerant temperature sensing bulb 6 is used for detecting the temperature of the refrigerant flowing out of the heat exchanger in the air treatment combination cabinet, and the second refrigerant temperature sensing bulb 7 is used for detecting the temperature of the refrigerant entering the heat exchanger in the air treatment combination cabinet. In fig. 1, an arrow at the throttle member 2 indicates a refrigerant flow direction in the cooling mode.
Fig. 2 is a flowchart of a method for automatically identifying a thermal bulb according to an embodiment of the present invention, as shown in fig. 2, the method includes the following steps:
s201, under the condition that the air conditioning system is started and operated, classifying according to the temperature change condition of the thermal bulb to be identified to obtain a first type of thermal bulb and a second type of thermal bulb, wherein the air conditioning system comprises an outdoor unit and an air treatment combination cabinet which are connected.
S202, identifying an environmental temperature sensing bulb and an air outlet temperature sensing bulb from the first type of temperature sensing bulb by controlling a fan of the air treatment combination cabinet.
And S203, identifying the first refrigerant thermal bulb and the second refrigerant thermal bulb from the second type of thermal bulb by controlling the opening degree of the throttling device.
The thermal bulb to be recognized refers to an AHU-KIT thermal bulb which is installed completely, and the identity of the thermal bulb needs to be recognized according to the actual installation position of the thermal bulb, so that the system is ensured to normally acquire control parameters, and the identity of the thermal bulb to be recognized comprises: the air conditioner comprises an air outlet temperature sensing bulb, an environment temperature sensing bulb, a first refrigerant temperature sensing bulb and a second refrigerant temperature sensing bulb. The execution sequence of steps S202 and S203 is not limited, and step S202 may be executed first after the classification of the bulb is completed, or step S203 may be executed first.
In the method for automatically identifying the thermal bulbs of the embodiment, under the condition that the air conditioning system is started to operate, the thermal bulbs to be identified are classified according to the temperature change condition of the thermal bulbs to be identified to obtain a first type of thermal bulbs and a second type of thermal bulbs, then the environmental thermal bulbs and the air-out thermal bulbs are identified from the first type of thermal bulbs by controlling the fan of the air processing combination cabinet, and the first refrigerant thermal bulbs and the second refrigerant thermal bulbs are identified from the second type of thermal bulbs by controlling the opening degree of the throttling device. The temperature-sensing bulb self-recognition system has the advantages that the functions of the installed temperature-sensing bulbs can be self-adaptively recognized and judged, the temperature-sensing bulbs are directly endowed with functions according to the installation positions of the temperature-sensing bulbs, the self-recognition positioning of the temperature-sensing bulbs is realized, if the temperature-sensing bulbs are inserted by installers in a wrong way, the temperature values acquired by the temperature-sensing bulbs can be correctly associated with the temperature attributes (such as air outlet temperature, ambient temperature, refrigerant inlet/outlet pipe temperature and the like) through the process of automatically recognizing the temperature-sensing bulbs, the system control parameters are guaranteed to be correct, repeated disassembly and assembly are not needed, the working efficiency is improved, the system performance and reliability are improved, and after-sale maintenance is facilitated.
In one embodiment, classifying according to the temperature change condition of the thermal bulb to be identified to obtain a first type thermal bulb and a second type thermal bulb, includes: opening a first throttling device and controlling a fan of the air treatment combined cabinet to be in a closed state, wherein the first throttling device is used for connecting an outdoor unit and the air treatment combined cabinet; if the time length of the fan of the air treatment combination cabinet in the closed state reaches a first preset time, acquiring the current temperature of a thermal bulb to be identified; for each temperature sensing bulb, determining the temperature change condition of the temperature sensing bulb according to the initial temperature and the current temperature of the temperature sensing bulb; if the temperature of the thermal bulb is not changed or the temperature change amplitude is smaller than or equal to a first preset threshold value, determining that the thermal bulb belongs to a first type of thermal bulb; and if the temperature variation amplitude of the temperature sensing bulb is larger than or equal to a second preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb.
The first throttling device refers to a throttling component in the AHU-KIT and can be an electronic expansion valve. And opening the first throttling device to enable the refrigerant to circulate in the outdoor unit and the air treatment combination cabinet. And (4) closing the fan of the air treatment combination cabinet, and not exchanging heat by the heat exchanger in the air treatment combination cabinet. The first preset time can be set according to actual operation conditions, and the temperature detected by the temperature sensing bulb can be obviously changed due to the setting of the first preset time, for example, the value of the first preset time can be 5 min. The first preset threshold and the second preset threshold can be set according to actual operation conditions, the first preset threshold is smaller than the second preset threshold, for example, the value of the first preset threshold is 2-3 ℃, and the value of the second preset threshold is about 10 ℃. It should be noted that, the first preset threshold may also be equal to the second preset threshold, that is, a threshold is used to classify the thermal bulbs, and at this time, the condition that the temperature variation amplitude of the thermal bulb is equal to the first preset threshold may correspond to the first type of thermal bulb or the second type of thermal bulb, for example, if the temperature of the thermal bulb is not changed or the temperature variation amplitude is smaller than the first preset threshold, it is determined that the thermal bulb belongs to the first type of thermal bulb; and if the temperature variation amplitude of the temperature sensing bulb is larger than or equal to a first preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb. The initial temperature of the thermal bulb refers to the temperature of the thermal bulb when a refrigerant in the air conditioning system does not circulate in the system.
The initial temperatures of the first refrigerant thermal bulb, the second refrigerant thermal bulb and the air outlet thermal bulb are basically close to the room temperature (namely the ambient temperature of the area where the air processing combination cabinet is located). The outdoor unit and the first throttling device are opened, but a fan of the air treatment combination cabinet is not opened, at the moment, the refrigerant circulates, the refrigerant does not exchange heat when passing through the air treatment combination cabinet, the temperatures of the refrigerant entering and exiting the air treatment combination cabinet are basically equal, namely, the temperature of the first refrigerant temperature sensing bulb is basically equal to the temperature of the second refrigerant temperature sensing bulb, the refrigerant is input into the air treatment combination cabinet as a cold source or a heat source, and compared with the initial temperature, the temperatures of the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb can be greatly changed. Because the fan is not opened, the outlet air temperature of the air treatment combination cabinet basically cannot change, the ambient temperature also basically cannot change, or the outlet air temperature and the ambient temperature may have smaller temperature fluctuation due to the cold quantity or heat transfer of the refrigerant. Based on the above principle, the thermal bulbs to be identified can be preliminarily divided into two categories.
This embodiment tentatively will treat the temperature sensing package of discernment and classify through the temperature change condition, the follow-up further discernment of being convenient for.
In one embodiment, before classifying according to the temperature change condition of the thermal bulb to be identified, the method further comprises the following steps: after wiring installation of the air conditioning system is completed, controlling the outdoor unit to start up and operate according to a working mode indicated by a starting instruction, and starting a control component to start a self-identification function of the thermal bulb, wherein the control component is in communication connection with the outdoor unit and the first throttling device; and acquiring the initial temperature of the thermal bulb to be identified.
According to the embodiment, the proper working mode can be selected based on the actual installation environment of the air conditioning system to control the air conditioner to start and operate, so that the self-identification of the temperature sensing bulb is realized in the air conditioner starting and operating process. When the refrigerant of the air-conditioning system does not circularly run in the system, the initial temperature of the thermal bulb is obtained, so that the temperature change condition of the thermal bulb can be determined based on the initial temperature after the refrigerant circularly runs, and classification of the thermal bulb is facilitated.
Specifically, if the temperature variation amplitude of the thermal bulb is greater than or equal to a second preset threshold, determining that the thermal bulb belongs to a second type of thermal bulb, including: in the refrigeration mode, if the temperature of the temperature sensing bulb is reduced and the temperature reduction amplitude is greater than or equal to a second preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb; and under the heating mode, if the temperature of the thermal bulb rises and the temperature rise amplitude is greater than or equal to a second preset threshold, determining that the thermal bulb belongs to a second type of thermal bulb.
In the refrigeration mode, the refrigerant is input into the air treatment combination cabinet as a cold source, and the temperature of the first refrigerant temperature sensing bulb and the temperature of the second refrigerant temperature sensing bulb are both greatly reduced compared with the initial temperature. In the heating mode, the refrigerant is input into the air treatment combination cabinet as a heat source, and the temperature of the first refrigerant temperature sensing bulb and the temperature of the second refrigerant temperature sensing bulb are both greatly increased compared with the initial temperature.
Therefore, the air conditioning system is controlled to perform cooling or heating operation according to the environment in which the air conditioning system is installed, and quick and effective classification can be realized according to the temperature change condition of the thermal bulb in the corresponding working mode.
In one embodiment, identifying an ambient bulb and an air-out bulb from a first type of bulb by controlling a fan of an air handling combination, comprises: controlling a fan of the air treatment combination cabinet to be in an open state; if the time length of the fan of the air treatment combination cabinet in the opening state reaches a second preset time, acquiring the current temperature of the first-type temperature sensing bulb; comparing the current temperature of a first temperature sensing bulb in the first temperature sensing bulb with the current temperature of a second temperature sensing bulb; and identifying the environmental temperature sensing bulb and the air outlet temperature sensing bulb according to the comparison result.
The second preset time can be set according to actual operation conditions, the setting of the second preset time needs to ensure that the air outlet temperature can be obviously changed, and the value of the second preset time can be 2 min. After the fan of the air treatment combination cabinet is started for a period of time, the air outlet temperature can be obviously changed due to heat exchange with a refrigerant, but the environmental temperature is not obviously changed, so that the environmental temperature bulb and the air outlet temperature bulb can be determined in the first type of temperature bulb.
This embodiment utilizes the change of air-out temperature through opening the fan of air treatment assembled cabinet, can follow the accurate environmental temperature sensing package of discerning in the first kind thermal bulb and air-out thermal bulb.
Further, according to the comparison result discernment environment temperature sensing package and air-out temperature sensing package, include: in a cooling mode, if the current temperature of the first temperature sensing bulb is higher than the current temperature of the second temperature sensing bulb, determining that the first temperature sensing bulb is an environment temperature sensing bulb and the second temperature sensing bulb is an air outlet temperature sensing bulb; in the heating mode, if the current temperature of the first thermal bulb is higher than the current temperature of the second thermal bulb, the first thermal bulb is determined to be an air outlet thermal bulb, and the second thermal bulb is determined to be an environment thermal bulb.
In the cooling mode, after the fan of the air treatment combination cabinet is opened for a period of time, the outlet air temperature can be reduced due to heat exchange with a refrigerant, but the ambient temperature is not changed obviously, so that the temperature sensing bulb with high temperature in the first type of temperature sensing bulb can be determined as the ambient temperature sensing bulb, and the temperature sensing bulb with low temperature is the outlet air temperature sensing bulb. In the heating mode, after the fan of the air treatment combination cabinet is started for a period of time, the outlet air temperature can rise due to heat exchange with a refrigerant, but the ambient temperature does not change obviously, so that the temperature sensing bulb with high temperature in the first type of temperature sensing bulb can be determined as the outlet air temperature sensing bulb, and the temperature sensing bulb with low temperature is determined as the ambient temperature sensing bulb.
The air conditioning system has the advantages that the environment thermal bulb and the air outlet thermal bulb can be accurately identified from the first type of thermal bulb by combining with the working mode of the air conditioning system.
Optionally, according to the comparison result discernment environment temperature sensing package and air-out temperature sensing package, include: in a cooling mode, if the current temperature of the first temperature sensing bulb is higher than the current temperature of the second temperature sensing bulb, and the difference value between the current temperature of the first temperature sensing bulb and the current temperature of the second temperature sensing bulb is larger than or equal to a third preset threshold value, determining that the first temperature sensing bulb is an environmental temperature sensing bulb, and the second temperature sensing bulb is an air outlet temperature sensing bulb; in the heating mode, if the current temperature of the first thermal bulb is greater than the current temperature of the second thermal bulb, and the difference value between the current temperature of the first thermal bulb and the current temperature of the second thermal bulb is greater than or equal to a third preset threshold value, the first thermal bulb is determined to be an air outlet thermal bulb, and the second thermal bulb is determined to be an environment thermal bulb.
The third preset threshold may be set according to an actual operation condition, for example, a value of the third preset threshold may be about 10 ℃.
In the embodiment, the temperature difference condition of the temperature sensing bulb is considered, namely, the temperature difference value of two temperature sensing bulbs in the first type of temperature sensing bulb is greater than or equal to the third preset threshold value, so that the accuracy of temperature sensing bulb identification can be further improved.
In one embodiment, the method for identifying a first refrigerant bulb and a second refrigerant bulb from a second type bulb by controlling the opening degree of an expansion device includes: determining a throttling device to be adjusted according to the working mode of the air conditioning system, and reducing the opening degree of the throttling device to be adjusted to a preset opening degree; if the throttle device to be regulated is at the preset opening and the time length of the fan of the air treatment combination cabinet in the opening state reaches a third preset time, acquiring the current temperature of the second type of temperature sensing bulb; comparing the current temperature of a third temperature sensing bulb with the current temperature of a fourth temperature sensing bulb in the second type of temperature sensing bulb; and identifying the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb according to the comparison result.
The third preset time can be set according to actual operation conditions, the temperature detected by the second type of thermal bulb needs to be obviously changed due to the setting of the third preset time, and the value of the third preset time can be 5 min.
The fan of the air treatment combination cabinet is in an opening state, and normal heat exchange in the air treatment combination cabinet can be guaranteed. After the opening degree of the throttling device to be adjusted is properly reduced to a certain value and maintained for a period of time, the temperature of the refrigerant entering and exiting the heat exchanger of the air processing combined cabinet is changed, and the change ranges are different, so that the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb can be distinguished in the second type of temperature sensing bulb.
In the embodiment, the first refrigerant thermal bulb and the second refrigerant thermal bulb can be accurately identified from the second type of thermal bulb by reducing the opening degree of the throttling device.
Specifically, determining a throttle device to be adjusted according to an operating mode of an air conditioning system includes: if the working mode is a refrigeration mode, determining that the throttling device to be regulated is a first throttling device, wherein the first throttling device is used for connecting the outdoor unit and the air treatment combination cabinet; and if the working mode is the heating mode, determining that the throttling device to be adjusted is a second throttling device, wherein the second throttling device is a heating throttling device in the outdoor unit. The heating throttling device can be a heating electronic expansion valve. In the refrigeration mode, a heating throttling device in the outdoor unit is opened to the maximum opening degree, and throttling is performed by a first throttling device; in the heating mode, the first throttle device is opened to the maximum opening degree, and the heating throttle device in the outdoor unit performs throttling.
In a refrigeration mode, after the opening degree of the first throttling device is properly reduced to a certain value and maintained for a period of time, the temperature of the refrigerant (corresponding to the first refrigerant temperature sensing bulb) entering the heat exchanger of the air treatment combination cabinet is reduced, and the refrigerant flows through the air treatment combination cabinet to have refrigeration loss, so that the temperature reduction amplitude of the refrigerant entering the heat exchanger of the air treatment combination cabinet is large, the temperature reduction amplitude of the refrigerant (corresponding to the second refrigerant temperature sensing bulb) flowing out of the heat exchanger of the air treatment combination cabinet is small, and therefore the temperature sensing bulb with the large temperature in the second type of temperature sensing bulb can be determined to be the second refrigerant temperature sensing bulb, and the temperature sensing bulb with the small temperature is determined to be the first refrigerant temperature sensing bulb.
In the heating mode, after the opening degree of the heating throttling device is properly reduced to a certain value and maintained for a period of time, the temperature of the refrigerant (corresponding to the second refrigerant temperature sensing bulb) entering the heat exchanger of the air treatment combination cabinet rises, and the refrigerant flows through the air treatment combination cabinet to cause heat loss, so that the temperature rise of the refrigerant entering the heat exchanger of the air treatment combination cabinet is large, the temperature rise of the refrigerant (corresponding to the first refrigerant temperature sensing bulb) flowing out of the heat exchanger of the air treatment combination cabinet is small, and therefore the temperature sensing bulb with the large temperature in the second type of temperature sensing bulb can be determined to be the second refrigerant temperature sensing bulb, and the temperature sensing bulb with the small temperature is determined to be the first refrigerant temperature sensing bulb.
According to the embodiment, the opening degree of the corresponding throttling device is reduced according to the refrigeration mode or the heating mode, so that the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb can be accurately identified.
Further, according to the comparison result, the method for identifying the first refrigerant thermal bulb and the second refrigerant thermal bulb comprises the following steps: if the current temperature of the third temperature-sensing bulb is higher than the current temperature of the fourth temperature-sensing bulb, determining that the third temperature-sensing bulb is a second refrigerant temperature-sensing bulb and the fourth temperature-sensing bulb is a first refrigerant temperature-sensing bulb; or if the current temperature of the third thermal bulb is greater than the current temperature of the fourth thermal bulb, and the difference between the current temperature of the third thermal bulb and the current temperature of the fourth thermal bulb is greater than or equal to a fourth preset threshold, determining that the third thermal bulb is the second refrigerant thermal bulb, and the fourth thermal bulb is the first refrigerant thermal bulb.
The fourth preset threshold can be set according to actual operation conditions, and for example, the value of the fourth preset threshold can be 2-5 ℃.
In the embodiment, the temperature difference condition of the thermal bulbs is considered, that is, the temperature difference value of two thermal bulbs in the second type of thermal bulbs is greater than or equal to the fourth preset threshold value, so that the accuracy of identification of the thermal bulbs can be further improved.
The method for automatically identifying a thermal bulb is described below with reference to a specific embodiment, but it should be noted that the specific embodiment is only for better describing the present application and is not construed as a limitation of the present application. The same or corresponding terms as those of the above-described embodiments are explained, and the description of the present embodiment is omitted.
As shown in fig. 3, taking the thermal bulb self-identification in the cooling mode as an example, the throttling component in the AHU-KIT is an electronic expansion valve, which specifically includes the following steps:
and S301, connecting the multi-connected outdoor units with the air treatment combination cabinet through an AHU-KIT, and finishing the engineering installation.
And S302, starting the multi-connected outdoor unit, and performing refrigeration operation.
S303, automatically acquiring the initial temperature of each thermal bulb to be identified.
S304, opening an electronic expansion valve in the AHU-KIT, and not opening a fan of the air treatment combination cabinet.
After the time of S305 and T1, classifying according to the temperature change condition of the thermal bulbs to be identified, determining two thermal bulbs with unchanged temperature or less than or equal to a temperature change amplitude in the thermal bulbs to be identified as a first type of thermal bulb (the detected temperatures are respectively denoted as T1 and T4), determining two thermal bulbs with reduced temperature and greater than or equal to B temperature reduction amplitude as a second type of thermal bulb (the detected temperatures are respectively denoted as T2 and T3), at this time, T1 is T4 (because the fan is not turned on, the outlet air temperature is equal to the ambient temperature), and T2 is T3 (because the air handling combination cabinet does not exchange heat, the temperatures of the refrigerants entering and exiting the air handling combination cabinet are equal). The first type of temperature sensing bulb comprises an environment temperature sensing bulb and an air outlet temperature sensing bulb, and the second type of temperature sensing bulb comprises a first refrigerant temperature sensing bulb and a second refrigerant temperature sensing bulb.
S306, starting a fan of the air treatment combination cabinet.
S307, after T2, judging whether T4 > T1 is satisfied and T4-T1 is not less than delta T1, if yes, entering S308, and if not, entering S312.
S308, positioning the T1 corresponding to the air outlet thermal bulb, and positioning the T4 corresponding to the environment thermal bulb.
S309, the opening degree of the electronic expansion valve is appropriately reduced to a preset opening degree.
S310, after T3 time, judging whether T2 > T3 is satisfied, and T2-T3 is not less than delta T2, if yes, entering S311, and if not, entering S313.
S311, positioning T2 corresponding to the first refrigerant temperature sensing bulb, and positioning T3 corresponding to the second refrigerant temperature sensing bulb.
S312, positioning the T4 corresponding to the air outlet thermal bulb, and positioning the T1 corresponding to the environment thermal bulb.
S313, positioning the T3 corresponding to the first refrigerant temperature sensing bulb, and positioning the T2 corresponding to the second refrigerant temperature sensing bulb.
The control principle is as follows: when the system is in refrigeration operation, the electronic expansion valve in the AHU-KIT is opened, the fan of the air treatment combination cabinet is not opened, the refrigerant circulates, and the refrigerant does not exchange heat when passing through the air treatment combination cabinet, so that the temperature of the refrigerant inlet pipe is basically equal to the temperature of the refrigerant outlet pipe, and compared with the initial temperature, the temperature of the refrigerant inlet pipe and the temperature of the refrigerant outlet pipe are both reduced. The fan of the air treatment combination cabinet is not opened, so the outlet air temperature and the ambient temperature basically do not change, and the air treatment combination cabinet can be divided into two types of temperature sensing bags. Then the system opens the fan of air treatment assembled cabinet after, in the short time, the air-out temperature can reduce, and ambient temperature is still unchangeable, can pinpoint air-out temperature sensing package and ambient temperature sensing package this moment. Finally, the opening degree of the electronic expansion valve in the AHU-KIT is properly reduced to a certain value and is fixed for maintaining a period of time, the temperature of the refrigerant (corresponding to the first refrigerant temperature sensing bulb) entering the heat exchanger of the air treatment combination cabinet is reduced, the refrigerant flows through the air treatment combination cabinet and has cold loss, so that the temperature reduction amplitude of the refrigerant entering the heat exchanger of the air treatment combination cabinet is large, the temperature reduction amplitude of the refrigerant (corresponding to the second refrigerant temperature sensing bulb) flowing out of the heat exchanger of the air treatment combination cabinet is small, and the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb can be accurately positioned at the moment.
Through the steps, after the air conditioning system engineering wiring installation is completed, the air conditioning system is started to enter the thermal bulb self-identification function, the automatic identification and positioning of the AHU-KIT thermal bulb are realized, and the thermal bulb function is given according to the installation position of the thermal bulb. If the installer inserts the temperature sensing bulb wrongly, through the process of automatically identifying the temperature sensing bulb, the temperature value acquired by the temperature sensing bulb can be correctly associated with the temperature attribute (such as air outlet temperature, ambient temperature, refrigerant inlet/outlet temperature and the like), so that the system control parameters are guaranteed to be correct, repeated disassembly and assembly are not needed, the working efficiency is improved, the system performance and reliability are improved, and after-sale maintenance is facilitated.
Based on the same inventive concept, the embodiment of the invention also provides a device for automatically identifying the thermal bulb, which can be used for realizing the method for automatically identifying the thermal bulb in the embodiment. The means for automatically identifying the thermal bulb may be implemented by software and/or hardware.
Fig. 4 is a block diagram of an apparatus for automatically identifying a thermal bulb according to an embodiment of the present invention, and as shown in fig. 4, the apparatus for automatically identifying a thermal bulb includes:
the classification module 41 is configured to, when the air conditioning system is started up and operated, classify the temperature-sensing bags according to temperature changes of the temperature-sensing bags to be identified to obtain a first-class temperature-sensing bag and a second-class temperature-sensing bag, where the air conditioning system includes an outdoor unit and an air handling combination cabinet that are connected to each other;
a first identification module 42, configured to identify an environmental thermal bulb and an air-out thermal bulb from the first-type thermal bulb by controlling a fan of the air processing combination cabinet;
and the second identification module 43 is configured to identify the first refrigerant thermal bulb and the second refrigerant thermal bulb from the second type of thermal bulb by controlling the opening degree of the throttling device.
Optionally, the classification module 41 includes:
the first control unit is used for starting a first throttling device and controlling the fan to be in a closed state, wherein the first throttling device is used for connecting the outdoor unit and the air treatment combination cabinet;
the first obtaining unit is used for obtaining the current temperature of the thermal bulb to be identified if the time length of the fan in the off state reaches a first preset time;
the first determining unit is used for determining the temperature change condition of each temperature sensing bulb according to the initial temperature and the current temperature of the temperature sensing bulb;
the second determining unit is used for determining that the temperature sensing bulb belongs to the first type of temperature sensing bulb if the temperature of the temperature sensing bulb is not changed or the temperature change amplitude is smaller than or equal to a first preset threshold value;
and the third determining unit is used for determining that the temperature sensing bulb belongs to the second type of temperature sensing bulb if the temperature change amplitude of the temperature sensing bulb is greater than or equal to a second preset threshold value.
Optionally, the apparatus for automatically identifying a thermal bulb further includes:
the control module is used for controlling the outdoor unit to start up and operate according to a working mode indicated by a starting instruction and starting a control component before the air conditioning system is classified according to the temperature change condition of the temperature sensing bulb to be recognized and after the wiring installation of the air conditioning system is completed, wherein the control component is in communication connection with the outdoor unit and the first throttling device;
and the acquisition module is used for acquiring the initial temperature of the thermal bulb to be identified.
Optionally, the third determining unit is specifically configured to:
in the refrigeration mode, if the temperature of the temperature sensing bulb is reduced and the temperature reduction amplitude is greater than or equal to the second preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb;
and under the heating mode, if the temperature of the thermal bulb rises and the temperature rise amplitude is larger than or equal to the second preset threshold, determining that the thermal bulb belongs to a second type of thermal bulb.
Optionally, the first identification module 42 includes:
the second control unit is used for controlling the fan to be in an opening state;
the second obtaining unit is used for obtaining the current temperature of the first-type thermal bulb if the time length of the fan in the starting state reaches a second preset time;
the first comparison unit is used for comparing the current temperature of a first temperature sensing bulb in the first temperature sensing bulb with the current temperature of a second temperature sensing bulb;
and the first identification unit is used for identifying the environmental bulb and the air-out bulb according to the comparison result.
Optionally, the first identification unit is specifically configured to:
in a cooling mode, if the current temperature of the first thermal bulb is higher than the current temperature of the second thermal bulb, determining that the first thermal bulb is an environmental thermal bulb and the second thermal bulb is an air outlet thermal bulb;
in the heating mode, if the current temperature of the first thermal bulb is greater than the current temperature of the second thermal bulb, the first thermal bulb is determined to be an air outlet thermal bulb, and the second thermal bulb is determined to be an environment thermal bulb.
Optionally, the first identification unit is specifically configured to:
in a cooling mode, if the current temperature of the first thermal bulb is higher than the current temperature of the second thermal bulb, and the difference value between the current temperature of the first thermal bulb and the current temperature of the second thermal bulb is greater than or equal to a third preset threshold value, determining that the first thermal bulb is an environmental thermal bulb, and the second thermal bulb is an air outlet thermal bulb;
in the heating mode, if the current temperature of the first thermal bulb is greater than the current temperature of the second thermal bulb, and the difference value between the current temperature of the first thermal bulb and the current temperature of the second thermal bulb is greater than or equal to a third preset threshold value, it is determined that the first thermal bulb is an air outlet thermal bulb, and the second thermal bulb is an environment thermal bulb.
Optionally, the second identifying module 43 includes:
the third control unit is used for determining a throttling device to be adjusted according to the working mode of the air conditioning system and reducing the opening degree of the throttling device to be adjusted to a preset opening degree;
the third obtaining unit is used for obtaining the current temperature of the second-type thermal bulb if the throttle device to be adjusted is at the preset opening degree and the time length of the fan in the opening state reaches a third preset time;
the second comparison unit is used for comparing the current temperature of a third temperature sensing bulb and the current temperature of a fourth temperature sensing bulb in the second type of temperature sensing bulb;
and the second identification unit is used for identifying the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb according to the comparison result.
Optionally, the third control unit is specifically configured to:
if the working mode is a refrigeration mode, determining that the throttling device to be regulated is a first throttling device, wherein the first throttling device is used for connecting the outdoor unit and the air treatment combination cabinet;
and if the working mode is a heating mode, determining that the throttling device to be adjusted is a second throttling device, wherein the second throttling device is a heating throttling device in the outdoor unit.
Optionally, the second identifying unit is specifically configured to:
if the current temperature of the third thermal bulb is higher than the current temperature of the fourth thermal bulb, determining that the third thermal bulb is a second refrigerant thermal bulb and the fourth thermal bulb is a first refrigerant thermal bulb; alternatively, the first and second electrodes may be,
and if the current temperature of the third thermal bulb is greater than the current temperature of the fourth thermal bulb, and the difference value between the current temperature of the third thermal bulb and the current temperature of the fourth thermal bulb is greater than or equal to a fourth preset threshold value, determining that the third thermal bulb is a second refrigerant thermal bulb, and the fourth thermal bulb is a first refrigerant thermal bulb.
The device for automatically identifying the thermal bulb can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
An embodiment of the present invention further provides an air conditioning system, including: the device for automatically identifying the thermal bulb in the above embodiment.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for automatically identifying a thermal bulb as described in the above embodiments.
An embodiment of the present invention further provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to implement the method of automatically identifying a bulb as in the above embodiments.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (13)

1. A method of automatically identifying a bulb, comprising:
under the condition that an air conditioning system is started and operated, classifying according to the temperature change condition of a thermal bulb to be identified to obtain a first type of thermal bulb and a second type of thermal bulb, wherein the air conditioning system comprises an outdoor unit and an air treatment combination cabinet which are connected;
identifying an environmental temperature sensing bulb and an air outlet temperature sensing bulb from the first type of temperature sensing bulb by controlling a fan of the air treatment combination cabinet;
and identifying a first refrigerant temperature sensing bulb and a second refrigerant temperature sensing bulb from the second type temperature sensing bulb by controlling the opening degree of the throttling device.
2. The method according to claim 1, wherein the classifying according to the temperature change condition of the thermal bulb to be identified to obtain a first type thermal bulb and a second type thermal bulb comprises:
starting a first throttling device and controlling the fan to be in a closed state, wherein the first throttling device is used for connecting the outdoor unit and the air treatment combination cabinet;
if the time length of the fan in the closed state reaches a first preset time, acquiring the current temperature of the thermal bulb to be identified;
for each temperature sensing bulb, determining the temperature change condition of the temperature sensing bulb according to the initial temperature and the current temperature of the temperature sensing bulb;
if the temperature of the thermal bulb is not changed or the temperature change amplitude is smaller than or equal to a first preset threshold value, determining that the thermal bulb belongs to a first type of thermal bulb;
and if the temperature variation amplitude of the temperature sensing bulb is larger than or equal to a second preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb.
3. The method according to claim 2, before classifying according to the temperature change condition of the thermal bulb to be identified, further comprising:
after the wiring installation of the air conditioning system is completed, controlling the outdoor unit to start up and operate according to a working mode indicated by a starting instruction, and starting a control component, wherein the control component is in communication connection with the outdoor unit and the first throttling device;
and acquiring the initial temperature of the thermal bulb to be identified.
4. The method of claim 2, wherein determining that the bulb belongs to a second type of bulb if the magnitude of the temperature change of the bulb is greater than or equal to a second predetermined threshold comprises:
in the refrigeration mode, if the temperature of the temperature sensing bulb is reduced and the temperature reduction amplitude is greater than or equal to the second preset threshold value, determining that the temperature sensing bulb belongs to a second type of temperature sensing bulb;
and under the heating mode, if the temperature of the thermal bulb rises and the temperature rise amplitude is larger than or equal to the second preset threshold, determining that the thermal bulb belongs to a second type of thermal bulb.
5. The method of any one of claims 1 to 4, wherein identifying an ambient bulb and a vent bulb from the first type of bulb by controlling a fan of the air handling combination, comprises:
controlling the fan to be in an opening state;
if the time length of the fan in the starting state reaches second preset time, acquiring the current temperature of the first-type temperature sensing bulb;
comparing the current temperature of a first thermal bulb in the first type of thermal bulb with the current temperature of a second thermal bulb;
and identifying the environmental temperature sensing bulb and the air outlet temperature sensing bulb according to the comparison result.
6. The method of claim 5, wherein identifying the ambient bulb and the vent bulb based on the comparison comprises:
in a cooling mode, if the current temperature of the first thermal bulb is higher than the current temperature of the second thermal bulb, determining that the first thermal bulb is an environmental thermal bulb and the second thermal bulb is an air outlet thermal bulb;
in the heating mode, if the current temperature of the first thermal bulb is greater than the current temperature of the second thermal bulb, the first thermal bulb is determined to be an air outlet thermal bulb, and the second thermal bulb is determined to be an environment thermal bulb.
7. The method of claim 5, wherein identifying the ambient bulb and the vent bulb based on the comparison comprises:
in a cooling mode, if the current temperature of the first thermal bulb is higher than the current temperature of the second thermal bulb, and the difference value between the current temperature of the first thermal bulb and the current temperature of the second thermal bulb is greater than or equal to a third preset threshold value, determining that the first thermal bulb is an environmental thermal bulb, and the second thermal bulb is an air outlet thermal bulb;
in the heating mode, if the current temperature of the first thermal bulb is greater than the current temperature of the second thermal bulb, and the difference value between the current temperature of the first thermal bulb and the current temperature of the second thermal bulb is greater than or equal to a third preset threshold value, it is determined that the first thermal bulb is an air outlet thermal bulb, and the second thermal bulb is an environment thermal bulb.
8. The method according to any one of claims 1 to 4, wherein identifying a first refrigerant bulb and a second refrigerant bulb from the second type of bulb by controlling an opening degree of a throttling device comprises:
determining a throttling device to be adjusted according to the working mode of the air conditioning system, and reducing the opening degree of the throttling device to be adjusted to a preset opening degree;
if the throttle device to be regulated is at the preset opening degree and the time length of the fan in the opening state reaches a third preset time, acquiring the current temperature of the second-type thermal bulb;
comparing the current temperature of a third temperature sensing bulb with the current temperature of a fourth temperature sensing bulb in the second type of temperature sensing bulb;
and identifying the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb according to the comparison result.
9. The method of claim 8, wherein determining a throttling device to be adjusted based on an operating mode of the air conditioning system comprises:
if the working mode is a refrigeration mode, determining that the throttling device to be regulated is a first throttling device, wherein the first throttling device is used for connecting the outdoor unit and the air treatment combination cabinet;
and if the working mode is a heating mode, determining that the throttling device to be adjusted is a second throttling device, wherein the second throttling device is a heating throttling device in the outdoor unit.
10. The method of claim 8, wherein identifying the first refrigerant bulb and the second refrigerant bulb based on the comparison comprises:
if the current temperature of the third thermal bulb is higher than the current temperature of the fourth thermal bulb, determining that the third thermal bulb is a second refrigerant thermal bulb and the fourth thermal bulb is a first refrigerant thermal bulb; alternatively, the first and second electrodes may be,
and if the current temperature of the third thermal bulb is greater than the current temperature of the fourth thermal bulb, and the difference value between the current temperature of the third thermal bulb and the current temperature of the fourth thermal bulb is greater than or equal to a fourth preset threshold value, determining that the third thermal bulb is a second refrigerant thermal bulb, and the fourth thermal bulb is a first refrigerant thermal bulb.
11. An apparatus for automatically identifying a bulb, comprising:
the classification module is used for classifying according to the temperature change condition of the thermal bulb to be identified under the condition that the air conditioning system is started to operate, so as to obtain a first type of thermal bulb and a second type of thermal bulb, wherein the air conditioning system comprises an outdoor unit and an air treatment combination cabinet which are connected;
the first identification module is used for identifying an environmental temperature sensing bulb and an air outlet temperature sensing bulb from the first type of temperature sensing bulb by controlling a fan of the air treatment combination cabinet;
and the second identification module is used for identifying the first refrigerant temperature sensing bulb and the second refrigerant temperature sensing bulb from the second type temperature sensing bulb by controlling the opening of the throttling device.
12. An air conditioning system, comprising: the apparatus for automatically identifying a bulb of claim 11.
13. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method of automatically identifying a bulb according to any one of claims 1 to 10.
CN202110626772.6A 2021-06-04 2021-06-04 Method and device for automatically identifying temperature sensing bulb and air conditioning system Active CN113251564B (en)

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