CN113513815A - Air conditioner medium conveying method, device and system - Google Patents
Air conditioner medium conveying method, device and system Download PDFInfo
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- CN113513815A CN113513815A CN202110386792.0A CN202110386792A CN113513815A CN 113513815 A CN113513815 A CN 113513815A CN 202110386792 A CN202110386792 A CN 202110386792A CN 113513815 A CN113513815 A CN 113513815A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000010412 perfusion Effects 0.000 claims abstract description 179
- 238000004378 air conditioning Methods 0.000 claims abstract description 57
- 238000012937 correction Methods 0.000 claims abstract description 41
- 238000005303 weighing Methods 0.000 claims abstract description 30
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
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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
- F24F11/62—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
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner medium conveying method, device and system, belonging to the field of air conditioner medium conveying; when the perfusion starts, the set output quantity of the perfusion equipment is set according to the preset perfusion quantity; and then the filling equipment outputs the air conditioning medium according to the set output quantity, the weighing equipment weighs the output air conditioning medium to obtain the actual output quantity, the actual output quantity is sent to the processor, the processor compares the actual output quantity with the preset filling quantity to obtain correction data, and the adjusting module adjusts the actual output quantity of the filling equipment according to the correction data to enable the final actual output quantity of the filling equipment to be equal to the preset filling quantity. According to the technical scheme, all the perfusion devices can be detected, and the perfusion devices are controlled according to the detection result, so that the perfusion devices can be more accurately perfused.
Description
Technical Field
The invention relates to an air conditioning medium conveying technology, in particular to an air conditioning medium conveying method, device and system.
Background
The air conditioner medium of current outer machine air conditioner production all can carry out the air conditioner in the factory and carry the operation of weighing, and its main function has: 1) ensuring that the cold medium in the medium pipeline is in a full pipe state; 2) the filling amount of the pipeline system of the unit is ensured to meet the requirements of technological parameters. The two points are met, so that the expected 'cooling capacity', 'heating capacity', 'APF (energy efficiency ratio)' and 'IPLV (comprehensive cooling performance coefficient)' can be effectively ensured when the air conditioner is operated.
The existing weighing method comprises the following steps: selecting two devices, weighing the whole machine before pouring, including a quick pouring head for pouring to obtain the weight a; after the pouring is finished, the pouring head is pulled out, the quick connector is reserved, and the weight b is obtained by weighing; the infusion amount is c, and then 1- (b-a)/c, and the infusion result is judged according to whether the error is within the allowable range. It should be noted that, because there is air in the pouring head, if the pouring amount c is used as the set output amount of the pouring device, the actual output amount b-a will be smaller than the set output amount c.
Therefore, the existing perfusion mode only aims at the equipment for spot inspection and cannot aim at all equipment; meanwhile, only the filling result can be known, and the air conditioner filling result cannot be more accurate.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an air conditioner medium conveying method, device and system, which aim to solve the problems that the existing pouring mode only aims at the equipment for spot inspection and cannot aim at all equipment; meanwhile, only the filling result can be known, and the air conditioner filling result cannot be more accurate.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in a first aspect,
an air conditioning medium conveying method comprises the following steps:
receiving a preset perfusion amount of a set air conditioning medium;
setting the set output quantity of the perfusion equipment according to the preset perfusion quantity;
acquiring the actual output quantity of the air conditioning medium output by the perfusion equipment according to the set output quantity;
calculating a first difference value between the preset perfusion amount and the actual output amount and a second difference value between the set output amount and the actual output amount;
when the first difference is larger than zero, a correction instruction is obtained according to the first difference and the second difference; the correction instruction is used for adjusting the opening of an adjusting valve, and the adjusting valve is used for adjusting the actual output quantity of the perfusion equipment.
Further, the setting of the set output quantity of the perfusion apparatus according to the preset perfusion quantity comprises:
judging whether the perfusion is the first perfusion;
and if the perfusion is performed for the first time, setting the set output quantity of the perfusion equipment as the preset perfusion quantity.
Further, if the perfusion is not the first perfusion, acquiring a second difference value of each previous perfusion;
and setting the set output quantity of the perfusion equipment according to the second difference value and the preset perfusion quantity.
Further, the setting of the set output quantity of the perfusion apparatus according to the second difference and the preset perfusion quantity at this time includes:
obtaining weighted second difference values of all the second difference values;
and setting the set output quantity of the perfusion equipment as the sum of the preset perfusion quantity and the weighted second difference value.
Further, the obtaining a correction instruction according to the first difference and the second difference includes:
calculating the output again quantity of the perfusion equipment according to the first difference and the second difference, and controlling the perfusion equipment to install the output again quantity to output an air conditioning medium;
the calculation formula is as follows:
B＝a+b
wherein, B is the re-output quantity, a is the first difference, B is the second difference.
In a second aspect of the present invention,
an air conditioning media delivery device comprising:
the preset perfusion receiving module is used for receiving the preset perfusion of the set air-conditioning medium;
the set output quantity acquisition module is used for setting the set output quantity of the perfusion equipment according to the preset perfusion quantity;
the actual output quantity obtaining module is used for obtaining the actual output quantity of the air conditioning medium output by the perfusion equipment according to the set output quantity;
the difference value calculating module is used for calculating a first difference value between the preset perfusion amount and the actual output amount and a second difference value between the set output amount and the actual output amount;
the correction module is used for obtaining a correction instruction according to the first difference and the second difference when the first difference is larger than zero; the correction instruction is used for adjusting the opening of an adjusting valve, and the adjusting valve is used for adjusting the actual output quantity of the perfusion equipment.
In a third aspect,
an air conditioning medium conveying system is used for executing the conveying method provided by the technical scheme and comprises a perfusion device, a weighing device, a processor and an adjusting module;
the perfusion equipment outputs an air conditioning medium according to a set output quantity;
the weighing equipment is used for weighing the air conditioning medium output by the perfusion equipment and sending weighing data to the processor;
the processor obtains correction data according to the weighing data and the set output quantity; and sending the correction data to the adjustment module;
the adjusting module is used for adjusting the actual output quantity of the perfusion equipment.
Further, the weighing apparatus comprises: the weighing equipment comprises an electronic scale and a containing container placed on the electronic scale.
Furthermore, the processor is a computer provided with processing software, and the electronic scale is electrically connected with the computer.
Further, the adjustment module includes:
a receiving unit for receiving the correction data sent by the processor;
the PLC is used for generating an adjusting instruction according to the correction data;
a regulating valve for executing the regulating instruction.
This application adopts above technical scheme, possesses following beneficial effect at least:
the technical scheme provides an air conditioner medium conveying method, device and system, and when the perfusion starts, the set output quantity of perfusion equipment is set according to the preset perfusion quantity; and then the filling equipment outputs the air conditioning medium according to the set output quantity, the weighing equipment weighs the output air conditioning medium to obtain the actual output quantity, the actual output quantity is sent to the processor, the processor compares the actual output quantity with the preset filling quantity to obtain correction data, and the adjusting module adjusts the actual output quantity of the filling equipment according to the correction data to enable the final actual output quantity of the filling equipment to be equal to the preset filling quantity. According to the technical scheme, all the perfusion devices can be detected, and the perfusion devices are controlled according to the detection result, so that the perfusion devices can be more accurately perfused.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of an air conditioning medium conveying method according to an embodiment of the present invention;
fig. 2 is a block diagram of an air conditioning medium conveying device according to an embodiment of the present invention;
FIG. 3 is a schematic block diagram of an air conditioning media delivery system according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a specific air conditioning medium delivery system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the technical solutions of the present invention is provided with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.
In an embodiment, as shown in fig. 1, an air conditioning medium conveying method according to an embodiment of the present invention is applied to an air conditioning medium conveying system according to the embodiment of the present invention, and includes:
receiving a preset perfusion amount of a set air conditioning medium;
setting the set output quantity of the perfusion equipment according to the preset perfusion quantity;
acquiring the actual output quantity of the air conditioning medium output by the perfusion equipment according to the set output quantity;
calculating a first difference value between a preset perfusion quantity and an actual output quantity and a second difference value between a set output quantity and the actual output quantity;
when the first difference is larger than zero, obtaining a correction instruction according to the first difference and the second difference; the correction instruction is used for adjusting the opening of the adjusting valve, and the adjusting valve is used for adjusting the actual output quantity of the perfusion equipment.
It should be noted that, the embodiment of the present invention relates to three air conditioning medium amounts; the preset perfusion amount refers to the preset perfusion amount of the air conditioning medium input to the air conditioning equipment, and the set output amount is the ideal output amount of the air conditioning medium set by the perfusion equipment; and the actual output quantity is the actual air conditioning medium quantity obtained by outputting the set output quantity by the perfusion equipment. Under ideal conditions, the actual output quantity is equal to the set output quantity, and the set output quantity is set as the preset perfusion quantity at the moment; however, in actual perfusion, the actual output is less than the set output due to air or other factors. The set output quantity is generally set as the preset perfusion quantity when the perfusion is started; but the actual output quantity obtained is less than the preset perfusion quantity and cannot meet the requirement. In general, the difference between the set output amount and the actual output amount due to air is the same when the set output amount is the same.
Therefore, in the embodiment of the present invention, setting the set output of the perfusion apparatus according to the preset perfusion amount includes: judging whether the perfusion is the first perfusion; if the perfusion is performed for the first time, the set output quantity of the set perfusion equipment is the preset perfusion quantity.
If the perfusion is not the first perfusion, acquiring a second difference value of each previous perfusion; and setting the set output quantity of the perfusion equipment according to the second difference value and the preset perfusion quantity.
Wherein, setting the output quantity of the perfusion device according to the second difference and the preset perfusion quantity comprises: obtaining weighted second difference values of all the second difference values; and setting the set output quantity of the perfusion equipment as the sum of the preset perfusion quantity and the weighted second difference value. According to the embodiment of the invention, the set output quantity at the beginning of each perfusion can be adjusted according to the condition of the previous perfusion, so that the actual output quantity obtained by the perfusion equipment according to the adjusted set output quantity is equal to the preset perfusion quantity.
The reason why the set output quantity and the actual output quantity of the perfusion equipment are not equal is that air exists in a perfusion head of the perfusion equipment, so that the set output quantity and the actual output quantity are approximately equal by default each time during adjustment. I.e. the second difference is substantially the same for each perfusion, so that the actual output volume can be made the same as the set output volume by simply calculating the second difference into the set output volume.
Obtaining the correction command according to the first difference and the second difference comprises:
calculating the output again quantity of the perfusion equipment according to the first difference and the second difference, and controlling the perfusion equipment to install the output again quantity to output the air conditioning medium;
the calculation formula is as follows:
B＝a+b
wherein, B is the re-output quantity, a is the first difference, B is the second difference.
Even if the set output quantity is adjusted, the actual output quantity may be smaller than the preset perfusion quantity, a first difference is generated, and when the first difference is larger than a preset standard, the perfusion device needs to be controlled again to output a certain quantity of air conditioning medium. At this time, the amount of re-output needs to be set, and according to the principle described above, the sum of the first difference and the second difference can be used as the amount of re-output.
The air conditioner medium conveying method provided by the embodiment of the invention determines the set output quantity according to the set preset perfusion quantity, then obtains the actual output quantity of the air conditioner medium output by the perfusion equipment according to the set output quantity, and then calculates the first difference value between the preset perfusion quantity and the actual output quantity and the second difference value between the set output quantity and the actual output quantity; and when the first difference is larger than zero, obtaining a correction instruction according to the first difference and the second difference, and controlling the perfusion equipment to output the air-conditioning medium again. The method for conveying the air-conditioning medium, provided by the embodiment of the invention, can adjust the set output quantity of the perfusion equipment each time according to the second difference value, and can also control the perfusion equipment to output the perfusion equipment again according to the sum of the first difference value and the second difference value.
In an embodiment, the present invention further provides an air conditioning medium conveying device, which is applied to the air conditioning medium conveying system provided in the above embodiment, as shown in fig. 2, and includes:
the preset perfusion amount receiving module 21 is used for receiving the preset perfusion amount of the set air-conditioning medium;
a set output acquiring module 22, configured to set a set output of the perfusion apparatus according to a preset perfusion amount; specifically, the set output acquisition module 22 determines whether the perfusion is the first perfusion; if the perfusion is performed for the first time, the set output quantity of the set perfusion equipment is the preset perfusion quantity. If the perfusion is not the first perfusion, acquiring a second difference value of each previous perfusion; and setting the set output quantity of the perfusion equipment according to the second difference value and the preset perfusion quantity.
Wherein, setting the output quantity of the perfusion device according to the second difference and the preset perfusion quantity comprises: obtaining weighted second difference values of all the second difference values; and setting the set output quantity of the perfusion equipment as the sum of the preset perfusion quantity and the weighted second difference value.
An actual output quantity obtaining module 23, configured to obtain an actual output quantity of the air conditioning medium output by the perfusion apparatus according to the set output quantity;
a difference calculation module 24, configured to calculate a first difference between a preset perfusion amount and an actual output amount, and a second difference between a set output amount and the actual output amount;
the correction module 25 is configured to obtain a correction instruction according to the first difference and the second difference when the first difference is greater than zero; the correction command is used for adjusting a valve, which is used for adjusting the actual output of the perfusion apparatus. Specifically, the correction module 45 calculates a re-output quantity of the perfusion device according to the first difference and the second difference, and controls the perfusion device to mount the re-output quantity and output the air conditioning medium;
the calculation formula is as follows:
B＝a+b
wherein, B is the re-output quantity, a is the first difference, B is the second difference.
According to the air conditioner medium conveying device provided by the embodiment of the invention, the preset perfusion quantity receiving module receives the preset perfusion quantity of the set air conditioner medium; the set output quantity acquisition module sets the set output quantity of the perfusion equipment according to the preset perfusion quantity; the actual output quantity obtaining module obtains the actual output quantity of the air conditioning medium output by the perfusion equipment according to the set output quantity; the difference value calculation module calculates a first difference value between the preset perfusion amount and the actual output amount and a second difference value between the set output amount and the actual output amount; when the first difference is larger than zero, the correction module obtains a correction instruction according to the first difference and the second difference; and the correction instruction is used for sending to the PLC so that the PLC adjusts the opening of the regulating valve to enable the final actual output quantity of the air conditioning medium output by the perfusion device to be equal to the preset perfusion quantity. The device provided by the embodiment of the invention can detect all perfusion and adjust the current perfusion according to the previous detection content, so that the perfusion is more accurate.
Referring to fig. 3, an embodiment of the present invention provides an air-conditioning medium conveying system, configured to perform the conveying method provided in the above embodiment, including a perfusion apparatus 31, a weighing apparatus 32, a processor 33, and an adjustment module 34;
the perfusion device 31 outputs the air conditioning medium according to the set output quantity;
the weighing device 32 weighs the air conditioning medium output by the perfusion device 31 and sends weighing data to the processor 33;
the processor 33 obtains correction data according to the weighing data and the set output quantity; and sends the correction data to the adjustment module 34;
the adjustment module 34 is used to adjust the actual output of the perfusion apparatus 31.
According to the air conditioning medium conveying system provided by the embodiment of the invention, when the perfusion starts, the perfusion device 31 outputs the air conditioning medium according to the set output quantity, the weighing device 32 weighs the output air conditioning medium and sends the weighing data to the processor 33, the processor 33 compares the weighing data with the set output quantity to obtain the correction data, and the adjusting module 34 adjusts the actual output quantity of the perfusion device 31 according to the correction data, so that the perfusion quantity is more accurate. This application technical scheme can advance to detect all filling equipment 31 to control according to the testing result, make filling equipment 31 more accurate filling.
As a supplementary explanation to the above-described embodiment, as shown in fig. 2, the weighing apparatus 32 includes an electronic scale 322 and a holding container 321 placed on the electronic scale 322. It is understood that the filling device 31 outputs an air conditioning medium such as a refrigerant into the holding container 321, the holding container 321 is placed on the electronic scale 322, and the electronic scale 322 inputs both the weighing data before the output and the weighing data after the output of the filling device 31 into the processor 33. The weighing device 32 can effectively weigh the mass of the medium output by the perfusion device 31 during perfusion and feed back the data in real time;
as an optional implementation manner of the embodiment of the present invention, the processor 33 is a computer provided with processing software, and the electronic scale 322 is electrically connected to the computer. The processing software is developed according to actual needs, and not only can process data sent by the electronic scale 322 in the background, but also can store the data so as to carry out reference and verification. The electronic scale 322 may be connected to the computer by a data line, for example, the electronic scale transmits data to the computer through the data line, switches the preset analog quantity by serial data communication and analog conversion, displays the weight data on the computer processing software in real time, and specifically, connects to the computer serial card by selecting two RS485 communication points on the I/O interface.
As an optional implementation manner of the embodiment of the present invention, the adjusting module 34 includes: a receiving unit 341 for receiving the correction data transmitted by the processor 33; a PLC controller 342 for generating an adjustment instruction according to the correction data; a regulator valve 343 for executing a regulating command. The regulating valve 343 regulates the output of the perfusion apparatus 31 so that the final actual output reaches the preset perfusion volume.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. An air conditioning medium conveying method is characterized by comprising the following steps:
receiving a preset perfusion amount of a set air conditioning medium;
setting the set output quantity of the perfusion equipment according to the preset perfusion quantity;
acquiring the actual output quantity of the air conditioning medium output by the perfusion equipment according to the set output quantity;
calculating a first difference value between the preset perfusion amount and the actual output amount and a second difference value between the set output amount and the actual output amount;
when the first difference is larger than zero, a correction instruction is obtained according to the first difference and the second difference; the correction instruction is used for adjusting the opening of an adjusting valve, and the adjusting valve is used for adjusting the actual output quantity of the perfusion equipment.
2. The method of claim 1, wherein: the setting of the set output quantity of the perfusion equipment according to the preset perfusion quantity comprises:
judging whether the perfusion is the first perfusion;
and if the perfusion is performed for the first time, setting the set output quantity of the perfusion equipment as the preset perfusion quantity.
3. The method of claim 2, wherein: if the perfusion is not the first perfusion, acquiring a second difference value of each previous perfusion;
and setting the set output quantity of the perfusion equipment according to the second difference value and the preset perfusion quantity.
4. The method of claim 3, wherein: the setting of the set output quantity of the perfusion equipment according to the second difference and the preset perfusion quantity comprises the following steps:
obtaining weighted second difference values of all the second difference values;
and setting the set output quantity of the perfusion equipment as the sum of the preset perfusion quantity and the weighted second difference value.
5. The method of claim 1, wherein: the obtaining of the correction instruction according to the first difference and the second difference comprises:
calculating the output again quantity of the perfusion equipment according to the first difference and the second difference, and controlling the perfusion equipment to install the output again quantity to output an air conditioning medium;
the calculation formula is as follows:
B＝a+b
wherein, B is the re-output quantity, a is the first difference, B is the second difference.
6. An air conditioning medium conveying device, characterized by comprising:
the preset perfusion receiving module is used for receiving the preset perfusion of the set air-conditioning medium;
the set output quantity acquisition module is used for setting the set output quantity of the perfusion equipment according to the preset perfusion quantity;
the actual output quantity obtaining module is used for obtaining the actual output quantity of the air conditioning medium output by the perfusion equipment according to the set output quantity;
the difference value calculating module is used for calculating a first difference value between the preset perfusion amount and the actual output amount and a second difference value between the set output amount and the actual output amount;
the correction module is used for obtaining a correction instruction according to the first difference and the second difference when the first difference is larger than zero; the correction instruction is used for adjusting the opening of an adjusting valve, and the adjusting valve is used for adjusting the actual output quantity of the perfusion equipment.
7. An air conditioning medium delivery system for performing the method of any of claims 1-5: the device comprises a perfusion device, a weighing device, a processor and an adjusting module;
the perfusion equipment outputs an air conditioning medium according to a set output quantity;
the weighing equipment is used for weighing the air conditioning medium output by the perfusion equipment and sending weighing data to the processor;
the processor obtains correction data according to the weighing data and the set output quantity; and sending the correction data to the adjustment module;
the adjusting module is used for adjusting the actual output quantity of the perfusion equipment.
8. The system of claim 7, wherein: the weighing equipment comprises an electronic scale and a containing container placed on the electronic scale.
9. The system of claim 8, wherein: the processor is a computer provided with processing software, and the electronic scale is electrically connected with the computer.
10. The system of claim 7, wherein: the adjustment module includes:
a receiving unit for receiving the correction data sent by the processor;
the PLC is used for generating an adjusting instruction according to the correction data;
a regulating valve for executing the regulating instruction.
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