CN113357856B - Refrigerant filling matching adjusting device of air conditioning system and control method - Google Patents
Refrigerant filling matching adjusting device of air conditioning system and control method Download PDFInfo
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- CN113357856B CN113357856B CN202110632059.2A CN202110632059A CN113357856B CN 113357856 B CN113357856 B CN 113357856B CN 202110632059 A CN202110632059 A CN 202110632059A CN 113357856 B CN113357856 B CN 113357856B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/003—Control issues for charging or collecting refrigerant to or from a cycle
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides a refrigerant filling matching adjusting device of an air conditioning system and a control method, wherein the refrigerant filling matching adjusting device of the air conditioning system comprises a weighing device, a distribution device and a control device; the distribution device is arranged on the weighing device; the distribution device is communicated with a refrigerant pipeline of the air conditioning system; the weighing device is used for measuring the mass of the refrigerant distributed to the air conditioning system by the distribution device; the control device is respectively in communication connection with the weighing device, the distribution device and the throttling control device of the air conditioning system. Compared with the traditional matching mode of manually replacing the capillary tube and manually controlling the refrigerant quantity, the method has the advantages of simple and convenient operation, higher efficiency, energy conservation and environmental protection, and can effectively shorten the research and development period of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioning systems, in particular to a refrigerant filling matching adjusting device and a control method of an air conditioning system.
Background
The air conditioning system comprises a compressor, a condenser, a capillary tube and an evaporator which are sequentially communicated through a refrigerant pipeline to form a closed loop. The normal operation of the air conditioning system depends on the amount of refrigerant in the refrigerant pipeline and whether the refrigerant flow is proper or not. If the refrigerant quantity in the air conditioning system is insufficient, the evaporation capacity of the evaporator is insufficient, the refrigerant liquid in the evaporator is evaporated into gas without completely flowing through the whole process due to the reduction of the refrigerant quantity, the return air temperature of the compressor is overhigh, the return air specific volume is increased, the refrigerating capacity is insufficient, the outlet superheat degree is overhigh, the exhaust temperature is overhigh, and the compressor is easy to cause thermal protection. If the quantity of the refrigerant in the air conditioning system is large, too much refrigerant enters the condenser, the exhaust pressure of the compressor is too high, the liquid refrigerant flows back, excessive refrigerant liquid is transferred to the evaporator through the capillary tube when the air conditioning system is stopped, and the excessive refrigerant liquid flows out of the evaporator in a two-phase state when the air conditioning system is restarted, and overflows into the compressor to cause a liquid impact phenomenon.
In the air conditioner matching process, aiming at air conditioners of different models, the optimal refrigerant quantity and the optimal refrigerant flow matched with the working parameters of the air conditioner are determined through tests. However, in the related art, the refrigerant filling and matching adjusting device of the air conditioning system is not arranged, but the supercooling pipe set, the refrigerant and the like need to be frequently replaced, so that the operation is complex, the development cycle of the air conditioner is prolonged, the refrigerant leakage is easy to occur, and the leaked or discharged refrigerant can pollute the environment in the air conditioner matching process. Therefore, in the air conditioner matching process, the refrigerant quantity and the refrigerant flow of the air conditioner are difficult to be controlled conveniently and accurately in an environment-friendly manner.
Disclosure of Invention
The invention provides a refrigerant filling matching adjusting device and a control method of an air conditioning system, which are used for solving the problem that the refrigerant quantity and the refrigerant flow of an air conditioner are difficult to be accurately controlled conveniently and environmentally in the matching process of the air conditioner at present.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, which comprises: the weighing device, the allocating device and the control device; the distribution device is arranged on the weighing device; the distribution device is communicated with a refrigerant pipeline of the air conditioning system; the weighing device is used for measuring the mass of the refrigerant distributed to the air conditioning system by the distribution device; the control device is respectively in communication connection with the weighing device, the distribution device and the throttle control device of the air conditioning system.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, which comprises a distributing seat, a refrigerant tank and a distributing pipe, wherein the distributing seat is provided with a plurality of distributing grooves; the distribution base is arranged on the weighing device, and a distribution cavity is arranged in the distribution base; the refrigerant tank is arranged on the distribution seat and communicated with the distribution cavity; the distribution cavity is communicated with one end of the distribution pipe, and the other end of the distribution pipe is communicated with a refrigerant pipeline on the air suction side of a compressor in the air conditioning system.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, wherein the allocation device also comprises a vacuum pump and a vacuumizing tube; the vacuum pump is communicated with one end of the vacuumizing pipe, and the other end of the vacuumizing pipe is communicated with the distribution cavity.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, wherein a quick connector, an air distribution port and a vacuumizing port are arranged on a distribution seat; one end of the quick connector, one end of the air distribution port and one end of the vacuumizing port are respectively communicated with the distribution cavity; the refrigerant output port of the refrigerant tank is detachably connected with the other end of the quick connector; one end of the distribution pipe is communicated with the other end of the air distribution port; one end of the vacuum-pumping pipe is communicated with the other end of the vacuum-pumping port.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, wherein a first control valve and a second control valve are arranged on a distribution seat, the first control valve is arranged on a gas distribution port, and the second control valve is arranged on a vacuumizing port; a refrigerant outlet of the refrigerant tank is provided with a third control valve; the first control valve, the second control valve and the third control valve are respectively in communication connection with the control device.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, wherein a throttling control device comprises a flow control valve and a position sensor; the position sensor is arranged on the flow control valve, and the detection end of the position sensor corresponds to one end of a valve rod of the flow control valve; the flow control valve and the position sensor are respectively in communication connection with the control device; and/or the throttling control device is arranged on a refrigerant pipeline between a condenser and an evaporator of the air conditioning system.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, which further comprises: an air quantity sensor and a temperature and humidity sensor; the air conditioning system comprises a compressor, a condenser, a throttling control device and an evaporator which are sequentially connected through the refrigerant pipeline to form a closed loop; the evaporator is arranged in an air conditioner indoor unit, and the air quantity sensor and the temperature and humidity sensor are arranged at an air outlet of the air conditioner indoor unit and are respectively in communication connection with the control device.
The invention provides a refrigerant filling matching adjusting device of an air conditioning system, which comprises a control module, a display module and a keyboard input module, wherein the control module is used for controlling the refrigerant filling matching adjusting device; the control module is respectively in communication connection with the weighing device, the distribution device, the throttling control device, the display module and the keyboard input module.
The invention also provides a control method of the refrigerant filling matching adjusting device of the air conditioning system, which comprises the following steps: sequentially injecting refrigerants with preset quality into a refrigerant pipeline of the air-conditioning system, sequentially performing gradient adjustment on the refrigerant flow of the air-conditioning system after the refrigerants are added each time, and sequentially acquiring air outlet parameters of an air-conditioning indoor unit of the air-conditioning system according to the gradient adjustment sequence; and comparing the acquired air outlet parameter with an air outlet reference value of the air conditioner indoor unit during normal operation, and acquiring the amount of refrigerant filled into the air conditioning system and the flow of the refrigerant running the air conditioning system when the air outlet parameter is matched with the air outlet reference value.
According to the air conditioning system refrigerant charging matching adjusting device and the control method, the weighing device, the allocating device and the control device are arranged, so that the refrigerant quantity of the refrigerant pipeline charged into the air conditioning system by the allocating device and the refrigerant flow of the air conditioning system can be regulated and controlled as required in real time, matching research on the air conditioning system can be conducted conveniently, and compared with a traditional matching mode of manually replacing a capillary tube and manually controlling the refrigerant quantity, the air conditioning system refrigerant charging matching adjusting device is simple and convenient to operate, more efficient, energy-saving and environment-friendly, and the research and development period of the air conditioner can be effectively shortened.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a refrigerant filling matching adjusting device of an air conditioning system provided by the invention;
fig. 2 is a schematic structural diagram of a refrigerant filling matching adjusting device of an air conditioning system according to the present invention for filling refrigerant into a refrigerant pipeline of the air conditioning system;
fig. 3 is a schematic flow chart of a control method based on an air conditioning system refrigerant charging matching adjusting device according to the present invention;
FIG. 4 is a schematic structural diagram of an electronic device provided in the present invention;
reference numerals:
1: a weighing device; 2: a control device; 3: a dispensing seat;
4: a refrigerant tank; 5: a distribution pipe; 6: vacuumizing a tube;
7: a vacuum pump; 31: a distribution chamber; 32: a fast interface;
33: an air distribution port; 34: a vacuum pumping port; 101: an air conditioner outdoor unit;
102: an air conditioner indoor unit; 10: a compressor; 11: a condenser;
12: a throttle control device; 13: an evaporator; 14: a refrigerant pipeline;
15: an air quantity sensor; 16: a temperature and humidity sensor; 100: a first laboratory;
200: a second laboratory.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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.
The refrigerant filling matching adjusting device and the control method of the air conditioning system according to the present invention are described with reference to fig. 1 to 3.
As shown in fig. 1 to fig. 2, the present embodiment provides an air conditioning system refrigerant filling matching adjusting device, including: the weighing device comprises a weighing device 1, a distribution device and a control device 2; the distribution device is arranged on the weighing device 1; the distribution device is communicated with a refrigerant pipeline 14 of the air conditioning system; the weighing device 1 is used for measuring the mass of the refrigerant distributed to the air conditioning system by the distribution device; the control device 2 is respectively in communication connection with the weighing device 1, the distribution device and a throttle control device 12 of the air conditioning system.
Specifically, in the embodiment, by arranging the weighing device 1, the distributing device and the control device 2, the refrigerant quantity of the refrigerant pipeline 14 filled into the air conditioning system by the distributing device and the refrigerant flow of the air conditioning system can be regulated and controlled as required in real time, so that matching research on the air conditioning system can be conveniently carried out.
As shown in fig. 2, the air conditioning system of the present embodiment includes a compressor 10, a condenser 11, a throttle control device 12, and an evaporator 13, which are connected in sequence via a refrigerant pipeline 14 to form a closed loop; the compressor 10, the condenser 11 and the throttle control device 12 are arranged on an air conditioner external unit 101; the evaporator 13 is arranged on the air conditioner indoor unit 102, and the air quantity sensor 15 and the temperature and humidity sensor 16 are arranged at the air outlet of the air conditioner indoor unit 102 and are respectively in communication connection with the control device 2. The throttle control device 12 shown in this embodiment is used to simulate a capillary tube in an existing air conditioning system.
When performing the air-conditioning matching test, the air-conditioning system refrigerant filling matching adjustment device and the air-conditioning outdoor unit 101 shown in this embodiment are disposed in the first laboratory 100, and the air-conditioning indoor unit 102 is disposed in the second laboratory 200. Wherein the first laboratory 100 is used to simulate an outdoor environment and the second laboratory 200 is used to simulate an indoor environment. In order to ensure the accuracy and the referential property of the data detected by the air volume sensor 15 and the temperature and humidity sensor 16, in this embodiment, a set of finished air conditioner products can be additionally configured in the second laboratory 200, so that the requirements can be actually tested, and the temperature and humidity in the second laboratory 200 can be adjusted through the finished air conditioner products, so as to simulate different working scenes of the air conditioner indoor unit 102.
In the embodiment, during actual testing, refrigerants with preset quality can be sequentially injected into the refrigerant pipeline 14 of the air conditioning system, the refrigerant flow of the air conditioning system is sequentially subjected to gradient adjustment after the refrigerants are added each time, and the air outlet parameters of the air conditioning indoor unit 102 of the air conditioning system are sequentially obtained according to the gradient adjustment sequence; and comparing the obtained air outlet parameter with an air outlet reference value of the air conditioner indoor unit 102 in normal operation to obtain the refrigerant quantity and the refrigerant flow when the air outlet reference value is reached. Therefore, according to the embodiment, the refrigerant quantity injected into the refrigerant pipeline 14 of the air conditioning system can be determined according to the refrigerant quantity and the refrigerant flow matched with the air outlet reference value, and the capillary tube with the corresponding specification is selected, so that the air conditioning system can be ensured to operate under the optimal working condition.
It should be noted that the air outlet parameters shown in this embodiment may specifically be the air outlet quantity of the air conditioner indoor unit 102 detected by the air quantity sensor 15 and the temperature and humidity of the air outlet of the air conditioner indoor unit 102 detected by the temperature and humidity sensor 16. The outlet reference value shown in this embodiment represents the outlet air volume and the outlet air temperature and humidity of the indoor unit of the finished air conditioning system during normal operation.
As shown in fig. 1, the dispensing device of the present embodiment includes a dispensing seat 3, a refrigerant tank 4 and a dispensing tube 5; the distribution base 3 is arranged on the weighing device 1, and a distribution cavity 31 is arranged in the distribution base 3; the refrigerant tank 4 is arranged on the distribution base 3, and the refrigerant tank 4 is communicated with the distribution cavity 31; the distribution chamber 31 communicates with one end of the distribution pipe 5, and the other end of the distribution pipe 5 communicates with the refrigerant pipe 14 on the suction side of the compressor 10 in the air conditioning system. The weighing device 1 shown in this embodiment is preferably a platform scale, and the platform scale is provided with a communication interface in communication connection with the control device 2.
Specifically, since the refrigerant tank 4 is disposed on the distribution base 3, and the distribution base 3 is disposed on the weighing device 1, the mass of the refrigerant distributed to the air conditioning system by the distribution device can be obtained by detecting the change value of the weighing weight displayed by the weighing device 1.
Meanwhile, the three-way stop valve is arranged on the refrigerant pipeline 14 on the suction side of the compressor 10, and when the refrigerant is filled, the refrigerant in the distribution cavity 31 can be automatically sucked into the refrigerant pipeline 14 by means of the suction pressure of the compressor 10 only by detachably and hermetically connecting the other end of the distribution pipe 5 with the refrigerant filling port of the three-way stop valve.
As shown in fig. 1, the dispensing device of the present embodiment further includes a vacuum pump 7 and an evacuation tube 6; the vacuum pump 7 communicates with one end of the evacuation tube 6, and the other end of the evacuation tube 6 communicates with the dispensing chamber 31.
Specifically, in order to ensure that the refrigerant in the distribution chamber 31 automatically flows into the refrigerant pipeline 14, and prevent that the filling and metering of the refrigerant are affected due to the air existing in the distribution chamber 31, in this embodiment, the vacuum pump 7 is started first before the refrigerant is filled, the distribution chamber 31 is vacuumized, after the distribution chamber 31 is in a vacuum environment, the refrigerant in the refrigerant tank 4 is filled into the distribution chamber 31, and then the refrigerant is filled into the refrigerant pipeline 14 of the air conditioning system through the distribution chamber 31 and the distribution pipe 5.
As shown in fig. 1, in order to better control the filling of the refrigerant, the distribution base 3 of the present embodiment is provided with a fast interface 32, a distribution port 33 and a vacuum port 34; one end of the fast interface 32, one end of the air distribution port 33 and one end of the vacuum pumping port 34 are respectively communicated with the distribution cavity 31; the refrigerant output port of the refrigerant tank 4 is detachably connected with the other end of the quick connector 32; one end of the distribution pipe 5 is communicated with the other end of the air distribution port 33; one end of the evacuation tube 6 communicates with the other end of the evacuation port 34.
Specifically, the quick connector 32 shown in this embodiment is disposed on the upper end surface of the dispensing seat 3 and located in the middle of the dispensing seat 3, and the lower end surface of the dispensing seat 3 is placed on the weighing platform of the weighing device 1 shown in the above embodiment. The refrigerant tank 4 shown in this embodiment is disposed upside down, and the refrigerant outlet of the refrigerant tank 4 is hermetically connected to the quick connector 32. The gas distribution port 33 and the vacuum port 34 are shown in this embodiment as being disposed on opposite sides of the distribution chamber 31.
Meanwhile, in the present embodiment, the dispensing seat 3 is provided with a first control valve and a second control valve, the first control valve is provided at the dispensing port 33, and the second control valve is provided at the vacuuming port 34; a refrigerant output port of the refrigerant tank 4 is provided with a third control valve; the first control valve, the second control valve and the third control valve are respectively in communication connection with the control device 2.
Therefore, before the refrigerant tank 4 fills the distribution chamber 31 with the refrigerant, the first control valve and the third control valve are normally closed, the second control valve is controlled to be opened, the vacuum pump 7 is started, and the distribution chamber 31 can be vacuumized. And after the vacuumizing is finished, the second control valve can be controlled to be closed. When the refrigerant tank 4 fills the refrigerant into the distribution cavity 31, the third control valve can be controlled to be opened, the first control valve and the second control valve are ensured to be in a normally closed state, and after the refrigerant tank 4 is filled, the third control valve is controlled to be closed. When the refrigerant is filled into the refrigerant pipeline 14 of the air conditioning system, the first control valve can be controlled to be opened, the second control valve and the third control valve are controlled to be in a normally closed state, and when the weighing device 1 detects that the refrigerant filled into the refrigerant pipeline 14 meets the requirement, the first control valve can be controlled to be closed.
It should be noted that, in order to improve the convenience and reliability of the control, in the present embodiment, at least one of the first control valve, the second control valve and the third control valve is a normally closed solenoid valve. Here, the first control valve, the second control valve, and the third control valve may be all normally closed solenoid valves.
Based on the improvement of the above embodiment, in order to facilitate the realization of the accurate regulation and control of the refrigerant flow in the refrigerant pipeline 14 of the air conditioning system, the throttle control device 12 provided in this embodiment includes a flow control valve and a position sensor; the position sensor is arranged on the flow control valve, and the detection end of the position sensor corresponds to one end of a valve rod of the flow control valve; the flow control valve and the position sensor are respectively in communication connection with the control device 2; the throttle control device 12 is provided on a refrigerant line 14 between a condenser 11 and an evaporator 13 of the air conditioning system.
Here, the control device 2 shown in this embodiment may perform PID control on the flow control valve through the real-time position of the valve rod of the flow control valve fed back by the position sensor until the valve rod of the flow control valve moves to an actually required position, so as to realize accurate regulation and control on the opening of the flow control valve, and further achieve accurate regulation and control on the refrigerant flow in the refrigerant pipeline 14 of the air conditioning system.
Further, the control device 2 shown in the present embodiment includes a control module, a display module and a keyboard input module; the control module is respectively in communication connection with the weighing device 1, the allocating device, the throttling control device 12, the display module and the keyboard input module.
Specifically, the display module shown in this embodiment is used for displaying the charging amount of the refrigerant and the flow rate of the refrigerant in real time, and the display module may be a touch screen display or an LCD display known in the art. The keyboard input module shown in this embodiment is used for receiving parameter instruction input of a user, for example: the user can set the related control parameters such as the refrigerant charging amount and the refrigerant flow through the keyboard input module, and the control module can control the distribution device and the throttle control device 12 in real time according to the control parameters.
The control module shown in this embodiment may be an integrated circuit chip, and has signal processing capability. The control module may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. The control module may also be any conventional processor or the like.
Preferably, as shown in fig. 3, the present embodiment further provides a control method of the refrigerant filling matching adjustment device of an air conditioning system, including the following steps:
and 311, sequentially injecting refrigerants with preset mass into a refrigerant pipeline of the air conditioning system, sequentially performing gradient adjustment on the refrigerant flow of the air conditioning system after the refrigerants are added each time, and sequentially acquiring air outlet parameters of an air conditioner indoor unit of the air conditioning system according to the gradient adjustment sequence. The air outlet parameters comprise the air outlet quantity of an air conditioner indoor unit and the temperature and humidity of outlet air.
And step 312, comparing the obtained air outlet parameter with an air outlet reference value of the air conditioner internal unit during normal operation, and obtaining the refrigerant quantity filled into the air conditioning system and the refrigerant flow rate of the air conditioning system during operation when the air outlet parameter is matched with the air outlet reference value.
Specifically, in an actual test, the minimum refrigerant quantity for filling the refrigerant and the maximum refrigerant flow rate during the operation of the air conditioning system can be set through the keyboard input module, and then, on the basis of the minimum refrigerant quantity for filling, the refrigerant flow rate during the operation of the air conditioning system is controlled to be reduced from large to small through the throttling control device, so that a group of air outlet parameters of the air conditioner indoor unit under the operation condition of each refrigerant flow rate is obtained.
And then, on the basis of the minimum refrigerant quantity, filling a refrigerant with preset quality, on the basis of the filled refrigerant quantity, controlling the refrigerant flow in the running process of the air-conditioning system to be reduced from large to small in sequence through the throttling control device, and obtaining a group of air outlet parameters of the air-conditioning indoor unit under the running working condition of each refrigerant flow again.
According to the operation, the refrigerants with preset quality are gradually increased, and a plurality of groups of air outlet parameters are obtained. And comparing the obtained air outlet parameter with an air outlet reference value of the air conditioner indoor unit in normal operation to obtain the refrigerant quantity and the refrigerant flow when the air outlet reference value is reached. And determining the refrigerant quantity injected into a refrigerant pipeline of the air conditioning system according to the refrigerant quantity and the refrigerant flow matched with the air outlet reference value, and selecting a capillary tube with a corresponding specification, thereby ensuring that the air conditioning system can operate under the optimal working condition.
Fig. 4 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 4: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may invoke logic instructions in the memory 430 to perform a method for controlling an air conditioning system refrigerant charge matching adjustment, the method comprising: sequentially injecting refrigerants with preset quality into a refrigerant pipeline of the air-conditioning system, sequentially performing gradient adjustment on the refrigerant flow of the air-conditioning system after the refrigerants are added each time, and sequentially acquiring air outlet parameters of an air-conditioning indoor unit of the air-conditioning system according to the gradient adjustment sequence; and comparing the obtained air outlet parameter with an air outlet reference value of the air conditioner indoor unit during normal operation, and obtaining the refrigerant quantity filled into the air conditioning system and the refrigerant flow rate of the air conditioning system during the matching of the air outlet parameter and the air outlet reference value.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention further provides a computer program product including a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer being capable of executing the method for controlling an air conditioning system refrigerant charge matching adjustment apparatus provided by the above methods, the method including: sequentially injecting refrigerants with preset quality into a refrigerant pipeline of the air-conditioning system, sequentially performing gradient adjustment on the refrigerant flow of the air-conditioning system after the refrigerants are added each time, and sequentially acquiring air outlet parameters of an air-conditioning indoor unit of the air-conditioning system according to the gradient adjustment sequence; and comparing the acquired air outlet parameter with an air outlet reference value of the air conditioner indoor unit during normal operation, and acquiring the amount of refrigerant filled into the air conditioning system and the flow of the refrigerant running the air conditioning system when the air outlet parameter is matched with the air outlet reference value.
In still another aspect, the present invention further provides a non-transitory computer readable storage medium, having a computer program stored thereon, where the computer program is implemented by a processor to execute the control method of the refrigerant charge matching adjustment apparatus of the air conditioning system provided above, the method including: sequentially injecting refrigerants with preset quality into a refrigerant pipeline of the air-conditioning system, sequentially performing gradient adjustment on the refrigerant flow of the air-conditioning system after the refrigerants are added each time, and sequentially acquiring air outlet parameters of an air-conditioning indoor unit of the air-conditioning system according to the gradient adjustment sequence; and comparing the obtained air outlet parameter with an air outlet reference value of the air conditioner indoor unit during normal operation, and obtaining the refrigerant quantity filled into the air conditioning system and the refrigerant flow rate of the air conditioning system during the matching of the air outlet parameter and the air outlet reference value.
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 this embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
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, and 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 (10)
1. The utility model provides an air conditioning system refrigerant fills annotates and matches adjusting device which characterized in that includes:
a weighing device;
the distribution device is arranged on the weighing device; the distribution device is used for being communicated with a refrigerant pipeline of the air conditioning system; the weighing device is used for measuring the mass of the refrigerant distributed to the air conditioning system by the distribution device;
the control device is in communication connection with the weighing device, the distribution device and a throttling control device of the air conditioning system respectively;
the control device is used for controlling the allocation device to sequentially inject refrigerants with preset quality into refrigerant pipelines of the air-conditioning system, after the refrigerants are added each time, gradient adjustment is sequentially carried out on the refrigerant flow of the air-conditioning system through the throttling control device, and air outlet parameters of an air-conditioning indoor unit of the air-conditioning system are sequentially obtained according to the gradient adjustment sequence; the control device compares the acquired air outlet parameter with an air outlet reference value of the air conditioner indoor unit during normal operation, and acquires the refrigerant quantity filled into the air conditioning system and the refrigerant flow rate of the air conditioning system during the matching of the air outlet parameter and the air outlet reference value.
2. The air conditioning system refrigerant charging matching adjusting device as claimed in claim 1, wherein the distribution device comprises a distribution base, a refrigerant tank and a distribution pipe;
the distribution base is arranged on the weighing device, and a distribution cavity is arranged in the distribution base; the refrigerant tank is arranged on the distribution seat and communicated with the distribution cavity; the distribution cavity is communicated with one end of the distribution pipe, and the other end of the distribution pipe is communicated with a refrigerant pipeline on the air suction side of a compressor in the air conditioning system.
3. The matching and adjusting device for refrigerant charging of air conditioning system as claimed in claim 2, wherein the distribution device further comprises a vacuum pump and a vacuum tube;
the vacuum pump is communicated with one end of the vacuumizing pipe, and the other end of the vacuumizing pipe is communicated with the distribution cavity.
4. The refrigerant filling matching adjusting device of an air conditioning system as claimed in claim 3, wherein the distribution base is provided with a fast interface, an air distribution port and a vacuum pumping port;
one end of the quick connector, one end of the air distribution port and one end of the vacuumizing port are respectively communicated with the distribution cavity; a refrigerant output port of the refrigerant tank is detachably connected with the other end of the quick connector; one end of the distribution pipe is communicated with the other end of the air distribution port; one end of the vacuum-pumping pipe is communicated with the other end of the vacuum-pumping port.
5. The refrigerant filling matching adjusting device of an air conditioning system as claimed in claim 4, wherein a first control valve and a second control valve are disposed on the distributing base, the first control valve is disposed at the air distributing port, and the second control valve is disposed at the vacuum pumping port; a refrigerant outlet of the refrigerant tank is provided with a third control valve;
the first control valve, the second control valve and the third control valve are respectively in communication connection with the control device.
6. The apparatus as claimed in claim 5, wherein at least one of the first control valve, the second control valve and the third control valve is a normally closed solenoid valve.
7. The air conditioning system refrigerant charging matching adjusting device as claimed in claim 1, wherein the throttle control device comprises a flow control valve and a position sensor; the position sensor is arranged on the flow control valve, and the detection end of the position sensor corresponds to one end of a valve rod of the flow control valve; the flow control valve and the position sensor are respectively in communication connection with the control device;
and/or the throttling control device is arranged on a refrigerant pipeline between a condenser and an evaporator of the air conditioning system.
8. An air conditioning system refrigerant charging matching adjusting device as claimed in any one of claims 1 to 7, further comprising: an air quantity sensor and a temperature and humidity sensor;
the air conditioning system comprises a compressor, a condenser, a throttling control device and an evaporator which are sequentially connected through the refrigerant pipeline to form a closed loop; the evaporator is arranged in an air conditioner indoor unit, and the air quantity sensor and the temperature and humidity sensor are arranged at an air outlet of the air conditioner indoor unit; the air quantity sensor and the temperature and humidity sensor are respectively in communication connection with the control device.
9. The refrigerant charging matching and adjusting device of an air conditioning system according to any one of claims 1 to 7, wherein the control device comprises a control module, a display module and a keyboard input module; the control module is respectively in communication connection with the weighing device, the distribution device, the throttling control device, the display module and the keyboard input module.
10. A method for controlling the refrigerant charge matching adjustment device of the air conditioning system as claimed in any one of claims 1 to 9, comprising:
sequentially injecting refrigerants with preset quality into a refrigerant pipeline of the air-conditioning system, sequentially performing gradient adjustment on the refrigerant flow of the air-conditioning system after the refrigerants are added each time, and sequentially acquiring air outlet parameters of an air-conditioning indoor unit of the air-conditioning system according to the gradient adjustment sequence;
and comparing the obtained air outlet parameter with an air outlet reference value of the air conditioner indoor unit during normal operation, and obtaining the refrigerant quantity filled into the air conditioning system and the refrigerant flow rate of the air conditioning system during the matching of the air outlet parameter and the air outlet reference value.
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