CN113408130B - Method for diagnosing abnormality of equipment in enthalpy difference laboratory, control equipment for enthalpy difference laboratory, and computer-readable storage medium - Google Patents
Method for diagnosing abnormality of equipment in enthalpy difference laboratory, control equipment for enthalpy difference laboratory, and computer-readable storage medium Download PDFInfo
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The invention provides an equipment abnormality diagnosis method of an enthalpy difference laboratory, control equipment of the enthalpy difference laboratory and a computer readable storage medium, wherein the equipment abnormality diagnosis method of the enthalpy difference laboratory comprises the following steps: acquiring enthalpy difference values under three different stable test conditions, and if detection conditions are reached among the three enthalpy difference values of the three different stable test conditions, acquiring a first output ratio of a first heat device and a second output ratio of a second heat device in the same space of each stable test condition; calculation of W 1 ×η+W 2 X ρ+q+h=0, and the actual power W of the first heat device is obtained 1 The method comprises the steps of carrying out a first treatment on the surface of the If the actual power of the first heat device is smaller than a first preset threshold value, the electric heater is determined to be damaged. The diagnosis method solves the problem that the existing enthalpy difference laboratory cannot automatically judge whether the equipment such as the heat device is abnormally damaged, can accurately and effectively diagnose the abnormality of the enthalpy difference laboratory equipment, improves the experimental efficiency, and saves the electric power.
Description
Technical Field
The invention relates to the technical field of enthalpy difference experiments of air conditioners, in particular to a method for diagnosing equipment abnormality of an enthalpy difference laboratory, the enthalpy difference laboratory for realizing the method and a computer readable storage medium.
Background
The enthalpy difference laboratory can simulate the running condition of the air conditioner in the actual environment, and mainly tests the refrigerating capacity or heating capacity of the air conditioner in the environment. Because the influence on the air conditioning capacity test in the environment is the maximum, the dry bulb temperature, the air humidity and the air flow rate of the environment, the air flow rate is determined by the experiment table structural device, the experiment table is embodied in design requirements in the initial stage of the construction, the experiment table is formed unchanged after the construction is completed, and the environment temperature and the environment humidity are the tasks of the cooperative adjustment of the corresponding refrigeration equipment, heating equipment, humidifying equipment, the rotating speed of the circulating fan and the like by the experimenter, so that the environment working condition of the experiment requirement is achieved.
Referring to fig. 1, the enthalpy difference laboratory mainly includes a compressor, an electric heater, and an electric humidifier. In order to stabilize the enthalpy difference laboratory at a temperature value and a humidity value, it is necessary to discharge steam to the laboratory by using an electric humidifier, and balance cold energy generated by a cold machine (compressor) of the laboratory and leakage heat of the laboratory by using an electric heater to output heat, so as to achieve a heat balance state, and maintain the temperature and the humidity of the laboratory constant. When the electric heater is used for building a laboratory, a plurality of electric heating pipes are distributed in a parallel mode, and the PID automatic regulating meter is used for controlling the heat output proportion of the electric heater so as to balance indoor heat.
Because the electric heating pipe is not a wearing part, in order to save cost, the electric heating output power is basically not measured by a special instrument when the experiment table is built so as to judge whether the electric heating output power is normal. Therefore, when the electric heater or the electric humidifier has a small part of heating pipe faults and is abnormal, an experimenter cannot see fault information from the monitoring equipment, and the experimenter judges that the electric heater or the electric humidifier has faults by obviously slowing down the heating speed, then the experimenter can disassemble related equipment, disconnect connecting wires and can find out the faulty electric heating pipe and replace the faulty electric heating pipe after measuring one by one.
Because the enthalpy difference laboratory runs for a long time, the laboratory is inconvenient to frequently pause to check the electric heater or the electric humidifier, the electric heating is composed of a plurality of heating components, and the electric heater or the electric humidifier is overhauled so that part of components are failed and cannot be found in time, the result is that the actual heat output of the electric heater or the electric humidifier cannot reach the design heat output when the electric heater or the electric humidifier runs, the rise speed of the environment temperature is slow, the rise of the high temperature cannot reach the specified temperature, and the like, and the electric power is wasted.
Disclosure of Invention
The first object of the present invention is to provide a method for diagnosing equipment abnormality in an enthalpy difference laboratory, which can diagnose equipment abnormality in the enthalpy difference laboratory accurately and effectively, improve experimental efficiency, and save electric power.
A second object of the present invention is to provide a control apparatus for an enthalpy difference laboratory which implements the apparatus abnormality diagnosis method for an enthalpy difference laboratory described above.
A third object of the present invention is to provide a computer-readable storage medium embodying the above-mentioned equipment abnormality diagnosis method of an enthalpy difference laboratory.
To achieve the first object of the present invention, the present invention provides a method for diagnosing equipment abnormality in an enthalpy difference laboratory, comprising: acquiring enthalpy difference values under three different stable test conditions, and if detection conditions are reached among the three enthalpy difference values of the three different stable test conditions, acquiring a first output ratio of a first heat device and a second output ratio of a second heat device in the same space of each stable test condition; calculation of W 1 ×η+W 2 X ρ+q+h=0, and the actual power of the first heat device is obtained, W 1 For the actual power of the first thermal device, W 2 The actual power of the second heat device is eta, eta is a first output ratio, rho is a second output ratio, Q is the heat loss of the space where the first heat device and the second heat device are located, and h is an enthalpy difference value; if the actual power of the first heat device is smaller than a first preset threshold value, the first heat device is determined to be damaged.
In a preferred embodiment, the three enthalpy difference values are a first enthalpy difference value, a second enthalpy difference value, and a third enthalpy difference value, respectively; the detection conditions include: sequentially increasing a first enthalpy difference value, a second enthalpy difference value and a third enthalpy difference value by a preset difference value; or the first enthalpy difference value, the second enthalpy difference value and the third enthalpy difference value are sequentially decreased by a preset difference value; or, the second enthalpy difference value is increased by a preset difference value relative to the first enthalpy difference value, and the third enthalpy difference value is decreased by a preset difference value relative to the first enthalpy difference value.
Still further, the preset difference is a first preset ratio of the first enthalpy difference.
Still further, the predetermined difference is between 20% and 40% of the first enthalpy difference.
Still further, the preset difference is 30% of the first enthalpy difference.
In a further embodiment, the first predetermined threshold is a second predetermined proportion of the rated power of the first thermal device.
In a further scheme, if the actual power of the first heat device is smaller than a second preset threshold value, a first heat device replacement prompt message is sent; the second preset threshold is smaller than the first preset threshold.
In a further embodiment, the second preset threshold is a third preset proportion of the rated power of the first thermal device.
In a further scheme, if the absolute value of the deviation of the dry bulb temperature of the enthalpy difference laboratory is smaller than the first preset deviation and the absolute value of the deviation of the wet bulb temperature of the enthalpy difference laboratory is smaller than the second preset deviation, the enthalpy difference laboratory is confirmed to reach the stable test working condition.
Still further, the first preset deviation is less than 0.05, and/or the second preset deviation is less than 0.05.
Further, the actual power of the second heat device is obtained, and if the actual power of the second heat device is smaller than a third preset threshold value, the damage of the second heat device is determined.
In a further embodiment, the third predetermined threshold is a fourth predetermined proportion of the rated power of the second heat element.
In a further scheme, if the actual power of the second heat device is smaller than a fourth preset threshold value, a second heat device replacement prompt message is sent; the fourth preset threshold is smaller than the third preset threshold.
In a further embodiment, the fourth predetermined threshold is a fifth predetermined proportion of the rated power of the second heat element.
In order to achieve the second object of the present invention, the present invention provides a control apparatus for an enthalpy difference laboratory, including a processor and a memory, the memory storing a computer program which, when executed by the processor, implements the steps of the above-mentioned apparatus abnormality diagnosis method for an enthalpy difference laboratory.
In order to achieve the third object of the present invention, the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described equipment abnormality diagnosis method of an enthalpy difference laboratory.
The equipment abnormality diagnosis method for the enthalpy difference laboratory solves the problem that the existing enthalpy difference laboratory cannot automatically judge whether abnormal damage exists on equipment such as a first heat device or a second heat device. The equipment abnormality diagnosis method of the enthalpy difference laboratory of the invention can obtain the first output ratio of the first heat device and the second output ratio of the second heat device in the same space of each stable test condition by obtaining the enthalpy difference values of three different stable test conditions and judging whether the detection conditions are reached or not, for example, the detection conditions are reached between the three enthalpy difference values of three different stable test conditions, and then W is carried out 1 ×η+W 2 Calculating an equation of x rho+Q+h=0 to obtain the actual power W of the first heat device 1 And the actual power W of the second heat device 2 After that, the actual power W of the first heat device 1 Or the actual power W of the second heat device 2 Abnormal damage judgment is carried out, and the abnormal conditions of related equipment such as a first heat device or a second heat device in the enthalpy difference laboratory can be accurately and effectively diagnosed. Compared with the prior art, the method for judging the faults of the first heat device or the second heat device by using the experimenters can suspend the experiment to disassemble the related equipment after the heating speed is obviously slowed down, and the fault electric heating pipe can be found and replaced after the measurement one by one.
Drawings
Fig. 1 is a schematic diagram of an enthalpy difference laboratory.
Fig. 2 is a flowchart of an embodiment of an apparatus abnormality diagnosis method of the enthalpy difference laboratory of the present invention.
The invention is further described below with reference to the drawings and examples.
Detailed Description
The equipment abnormality diagnosis method of the enthalpy difference laboratory is applied to the control equipment of the enthalpy difference laboratory, the control equipment of the enthalpy difference laboratory comprises a processor and a memory, the memory stores a computer program, and the processor executes the computer program to realize the equipment abnormality diagnosis method of the enthalpy difference laboratory.
Example of method for diagnosing abnormality of equipment in enthalpy difference laboratory:
the embodiment is applied to control equipment of an enthalpy difference laboratory, referring to fig. 2, step S1 is first executed to obtain enthalpy difference values h under three different stable test conditions 1 、h 2 、h 3 Specifically, if the absolute value of the deviation of the dry bulb temperature of the enthalpy difference laboratory is smaller than the first preset deviation and the absolute value of the deviation of the wet bulb temperature of the enthalpy difference laboratory is smaller than the second preset deviation, confirming that the enthalpy difference laboratory achieves a stable test working condition. In the embodiment, the first preset deviation is smaller than 0.05, the second preset deviation is smaller than 0.05, and the precision of stable test working conditions of the enthalpy difference laboratory is improved.
Step S2 is then executed to determine three enthalpy difference values h for three different stable test conditions 1 、h 2 、h 3 Whether or not the detection condition is reached, e.g. three enthalpy difference values h of three different stable test conditions 1 、h 2 、h 3 And if the detection condition is met, executing step S3. If not, step S1 is performed. Specifically, three enthalpy differences h 1 、h 2 、h 3 Respectively are the first enthalpy difference h 1 Second enthalpy difference h 2 And a third enthalpy difference h 3 The detection conditions include: first enthalpy difference h 1 Second enthalpy difference h 2 Difference of third enthalpy h 3 Sequentially increasing a preset difference delta; alternatively, the first enthalpy difference h 1 Second enthalpy difference h 2 Difference of third enthalpy h 3 Sequentially decreasing the preset difference delta; alternatively, the second enthalpy difference h 2 Difference of relative first enthalpy h 1 Increasing the preset difference value and the third enthalpy difference value h 3 Difference of relative first enthalpy h 1 The preset difference delta is reduced. Wherein the preset difference delta is the first enthalpy difference h 1 Preferably, the preset difference delta is the first enthalpy difference h 1 Between 20% and 40%. While the present embodiment is premised onLet the difference delta be the first enthalpy difference h 1 30%, i.e. the preset difference delta=30%h 1 . For example, a first enthalpy difference h 1 1000KJ, the first embodiment is that the second enthalpy difference h 2 1300KJ, third enthalpy difference h 3 1600KJ; in a second embodiment, the second enthalpy difference h 2 700KJ, third enthalpy difference h 3 400KJ; in a third embodiment, the second enthalpy difference h 2 1300KJ, third enthalpy difference h 3 700KJ; in a fourth embodiment, the second enthalpy difference h 2 700KJ, third enthalpy difference h 3 1300KJ. The equipment abnormality diagnosis method of the enthalpy difference laboratory of the embodiment sets and judges three enthalpy difference values h of three different stable test conditions 1 、h 2 、h 3 And (3) whether the detection condition is met or not, so that the accuracy of the diagnosis method is effectively improved.
Determining three enthalpy difference values h of three different stable test conditions 1 、h 2 、h 3 After the detection condition is reached, step S3 is executed to obtain a first output ratio η of the first heat device and a second output ratio ρ of the second heat device in the same space under each stable test condition.
The first heat device in this embodiment is an electric heater, and the second heat device is an electric humidifier. Specifically, as the power of the tested air conditioning equipment is changed, the heat output ratio of the electric heater and the electric humidifier in the same indoor or outdoor space of the enthalpy difference laboratory is also changed, namely the first output ratio eta of the electric heater and the second output ratio rho of the electric humidifier are changed, so that the enthalpy difference laboratory achieves a stable test working condition. The heat output proportion of the electric heater is automatically adjusted by a first PID automatic adjusting meter according to the power of the tested air conditioning equipment, and the heat output proportion of the electric humidifier is automatically adjusted by a second PID automatic adjusting meter according to the power of the tested air conditioning equipment, and under three different stable test working conditions of an enthalpy difference laboratory, the first output proportion of the electric heater is eta respectively 1 、η 2 、η 3 And the second output ratios of the electric humidifiers are ρ respectively 1 、ρ 2 、ρ 3 。
Then execute S4 to calculate W 1 ×η+W 2 X ρ+q+h=0, and the actual power W of the electric heater is obtained 1 And obtain the actual power W of the electric humidifier 2 . Wherein Q is heat loss of the space where the electric heater and the electric humidifier are located, and h is enthalpy difference. Specifically, the enthalpy difference value h of three different stable test conditions is obtained in the previous step 1 、h 2 、h 3 First output ratio eta of electric heater 1 、η 2 、η 3 And a second output ratio ρ of the electric humidifier 1 、ρ 2 、ρ 3 The column solves the equation:
W 1 ×η 1 +W 2 ×ρ 1 +Q+h 1 ＝0
W 1 ×η 2 +W 2 ×ρ 2 +Q+h 2 ＝0
W 1 ×η 3 +W 2 ×ρ 3 +Q+h 3 ＝0
solving and calculating three equation sets to obtain the actual power W of the electric heater 1 Actual power W of electric humidifier 2 And heat loss Q of the space where the electric heater and the electric humidifier are located. The heat loss Q of the space where the electric heater and the electric humidifier are located comprises the heat loss of the air processing unit and the heat leakage loss of the laboratory, and the heat loss of the air processing unit and the heat leakage loss of the laboratory form a fixed value after the construction of the enthalpy difference laboratory is completed, so that the heat loss Q of the space where the electric heater and the electric humidifier are located is equivalent to a constant value in an equation.
In addition, due to W 1 X eta is the heat released by the electric heater and is a positive value; w (W) 2 X ρ is the heat released by the electrical humidifier, positive; the heat loss Q of the space where the electric heater and the electric humidifier are located is a negative value; whereas the enthalpy difference h is negative. When the enthalpy difference laboratory is in a stable test working condition, the heat released by the electric heater, the heat released by the electric humidifier, the heat loss of the space where the electric heater and the electric humidifier are positioned and the enthalpy difference value reach a heat balance state, so that W is 1 ×η+W 2 ×ρ+Q+h＝0。
Then, step S5 is executed to determine the actual power W of the electric heater 1 Whether or not it is smaller than a first preset threshold, e.g. the actual power W of the electric heater 1 If the electric heater damage is smaller than the first preset threshold, step S6 is executed, and the electric heater damage is determined. If not, step S1 is performed. Specifically, the first preset threshold is the rated power P of the electric heater 1 Preferably, the first preset threshold value N 1 ＝70％P 1 ，P 1 Is rated power of the electric heater, rated power P of the electric heater 1 Available from instruction manuals in enthalpy difference laboratories.
While executing step S5, step S7 may also be executed to determine the actual power W of the electric heater 1 Whether the second preset threshold value is smaller than the first preset threshold value. E.g. actual power W of electric heater 1 And if the electric heater replacement prompt information is smaller than the second preset threshold value, executing the step S8, and sending the electric heater replacement prompt information. If not, step S1 is performed. Specifically, the second preset threshold is the rated power P of the electric heater 1 Preferably, the second preset threshold value N 2 ＝50％P 1 ，P 1 Is rated power of the electric heater, rated power P of the electric heater 1 Available from instruction manuals in enthalpy difference laboratories.
Step S9 is performed while step S5 or step S7 is performed, and the actual power W of the electric humidifier is determined 2 Whether or not it is smaller than a third preset threshold, e.g. the actual power W of the electric humidifier 2 If the detected temperature is less than the third preset threshold value, step S10 is executed to determine that the electric humidifier is damaged. If not, step S1 is performed. Specifically, the third preset threshold is the rated power P of the electric humidifier 2 Preferably, the third preset threshold value N 3 ＝70％P 2 ，P 2 Is rated power of the electric humidifier, and rated power P of the electric humidifier 2 Available from instruction manuals in enthalpy difference laboratories.
Step S11 may be executed in addition to step S5, step S7, and step S9, to determine the actual power W of the electric humidifier 2 Whether the fourth preset threshold value is smaller than the third preset threshold value. E.g. actual power W of electric humidifier 2 And if the number of the electric humidifier is smaller than the fourth preset threshold, executing the step S12, and sending out a replacement prompt message of the electric humidifier. If not, step S1 is performed. Specifically, the fourth preset threshold is the rated power P of the electric humidifier 2 Preferably, the fourth preset threshold value N 4 ＝50％P 2 ，P 2 Is rated power of the electric humidifier, and rated power P of the electric humidifier 2 Available from instruction manuals in enthalpy difference laboratories.
The equipment abnormality diagnosis method for the enthalpy difference laboratory solves the problem that the existing enthalpy difference laboratory cannot automatically judge whether related equipment such as an electric heater or an electric humidifier is abnormally damaged. The equipment abnormality diagnosis method of the enthalpy difference laboratory of the invention can obtain the first output ratio of the electric heater and the second output ratio of the electric humidifier in the same space of each stable test condition by obtaining the enthalpy difference values of three different stable test conditions and judging whether the detection conditions are reached or not, for example, the detection conditions are reached between the three enthalpy difference values of three different stable test conditions, and then W is carried out 1 ×η+W 2 Calculating an equation of x rho+Q+h=0 to obtain the actual power W of the electric heater 1 And the actual power W of the electric humidifier 2 After that, the actual power W of the electric heater 1 Or the actual power W of the electric humidifier 2 Abnormal damage judgment is carried out, and abnormal conditions of related equipment such as an electric heater or an electric humidifier in an enthalpy difference laboratory can be accurately and effectively diagnosed. Compared with the traditional method for judging the faults of the electric heater or the electric humidifier by experimenters, the method for diagnosing the faults of the equipment in the enthalpy difference laboratory can automatically diagnose the faults of the equipment in the enthalpy difference laboratory in the process of performing the enthalpy difference experiment, and can suspend the experiment to disassemble the related equipment and detect the faulty electric heating pipe and replace the faulty electric heating pipe one by one after the heating speed is obviously slowed down.
Control device example of enthalpy difference laboratory:
the control device of the enthalpy difference laboratory of the present embodiment includes a processor and a memory, in which a computer program is stored that can be run on the processor, and the processor implements the steps of the device abnormality diagnosis method of the enthalpy difference laboratory described above when executing the computer program.
For example, a computer program may be split into one or more modules, which are stored in memory and executed by a processor to perform the various modules of the invention. One or more of the modules may be a series of computer program instruction segments capable of performing specific functions for describing the execution of the computer program in the terminal device.
The processor referred to in the present invention may be a central processing unit (Central Processing Unit, CPU), or other general purpose processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being a laboratory control center, and the various interfaces and lines being used to connect various parts of the entire laboratory.
The memory may be used to store computer programs and/or modules, and the processor implements various functions of the laboratory by running or executing the computer programs and/or modules stored in the memory, and invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to laboratory use, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, memory, plug-in hard disk, smart Media Card (SMC), secure Digital (SD) Card, flash Card (Flash Card), at least one disk storage device, flash memory device, or other volatile solid state storage device.
Computer-readable storage medium embodiments:
the computer program stored in the memory of the enthalpy difference laboratory can be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, the present invention may implement all or part of the procedures in the above-described embodiment method, or may be implemented by instructing related hardware by a computer program, which may be stored in a computer readable storage medium, and the computer program may implement the steps of the above-described equipment abnormality diagnosis method of the enthalpy difference laboratory when being executed by a processor.
Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. It should be noted that the content of the computer readable medium can be appropriately increased or decreased according to the requirements of the jurisdiction's jurisdiction and the patent practice, for example, in some jurisdictions, the computer readable medium does not include electrical carrier signals and telecommunication signals according to the jurisdiction and the patent practice.
The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of the present invention, so that all equivalent changes or modifications made according to the construction, characteristics and principles of the present invention shall be included in the scope of the present invention.
Claims (15)
1. An equipment abnormality diagnosis method for an enthalpy difference laboratory, comprising:
obtaining enthalpy difference values h under three different stable test conditions 1 、h 2 、h 3 Three enthalpy difference values h as described for the three different stability test conditions 1 、h 2 、h 3 When the detection conditions are met, obtaining a first output ratio eta of a first heat device in the same space under the three different stable test conditions 1 、η 2 、η 3 And a second output ratio ρ of the second heat device 1 、ρ 2 、ρ 3 ；
According to W 1 ×η+W 2 The x ρ+q+h=0 column solves the equation:
W 1 ×η 1 +W 2 ×ρ 1 +Q+h 1 ＝0
W 1 ×η 2 +W 2 ×ρ 2 +Q+h 2 ＝0
W 1 ×η 3 +W 2 ×ρ 3 +Q+h 3 ＝0
solving and calculating three equation sets to obtain the actual power W of the first heat device 1 ；
W 2 Q is the actual power of the second heat device, and Q is the heat loss of the space where the first heat device and the second heat device are located;
actual power W of the first heat device 1 If the first thermal device is smaller than a first preset threshold value, determining that the first thermal device is damaged;
the three enthalpy difference values are respectively the first enthalpy difference value h 1 Second enthalpy difference h 2 And a third enthalpy difference h 3 ；
The detection conditions include: said first enthalpy difference h 1 Said second enthalpy difference h 2 Said third enthalpy difference h 3 Sequentially increasing a preset difference value; or alternatively, the process may be performed,
said first enthalpy difference h 1 Said second enthalpy difference h 2 Said third enthalpy difference h 3 Sequentially decreasing the preset difference value; or alternatively, the process may be performed,
said second enthalpy difference h 2 Relative to the first enthalpy difference h 1 A preset difference value is added, and the third enthalpy difference value h 3 Relative to the first enthalpy difference h 1 The preset difference is reduced.
2. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 1, characterized in that:
the preset difference is a first preset proportion of the first enthalpy difference.
3. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 2, characterized in that:
the preset difference is between 20% and 40% of the first enthalpy difference.
4. A method for equipment anomaly diagnosis in an enthalpy difference laboratory according to claim 3, characterized in that:
the preset difference is 30% of the first enthalpy difference.
5. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 1, characterized in that:
the first preset threshold is a second preset proportion of rated power of the first heat device.
6. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 1, characterized in that:
if the actual power of the first heat device is smaller than a second preset threshold, a first heat device replacement prompt message is sent;
the second preset threshold is smaller than the first preset threshold.
7. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 6, characterized in that:
the second preset threshold is a third preset proportion of rated power of the first heat device.
8. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 1, characterized in that:
if the absolute value of the deviation of the dry bulb temperature of the enthalpy difference laboratory is smaller than the first preset deviation, and the absolute value of the deviation of the wet bulb temperature of the enthalpy difference laboratory is smaller than the second preset deviation, confirming that the enthalpy difference laboratory achieves a stable test working condition.
9. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 8, characterized in that:
the first preset deviation is less than 0.05 and/or the second preset deviation is less than 0.05.
10. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to any one of claims 1 to 9, characterized by:
and acquiring the actual power of the second heat device, and if the actual power of the second heat device is smaller than a third preset threshold value, determining that the second heat device is damaged.
11. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 10, characterized in that:
the third preset threshold is a fourth preset proportion of rated power of the second heat device.
12. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 10, characterized in that:
if the actual power of the second heat device is smaller than a fourth preset threshold, a second heat device replacement prompt message is sent;
the fourth preset threshold is smaller than the third preset threshold.
13. The equipment abnormality diagnosis method of an enthalpy difference laboratory according to claim 12, characterized in that:
the fourth preset threshold is a fifth preset proportion of rated power of the second heat device.
14. Control device for an enthalpy difference laboratory, characterized by comprising a processor and a memory, said memory storing a computer program which, when executed by said processor, implements the steps of the device anomaly diagnosis method for an enthalpy difference laboratory according to any of the previous claims 1 to 13.
15. A computer readable storage medium having stored thereon a computer program characterized by:
the computer program, when executed by a processor, implements the steps of the method for diagnosing equipment anomalies in an enthalpy difference laboratory according to any one of the preceding claims 1 to 13.
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