CN112946406A - Air conditioner efficiency testing arrangement - Google Patents
Air conditioner efficiency testing arrangement Download PDFInfo
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- CN112946406A CN112946406A CN202110312587.XA CN202110312587A CN112946406A CN 112946406 A CN112946406 A CN 112946406A CN 202110312587 A CN202110312587 A CN 202110312587A CN 112946406 A CN112946406 A CN 112946406A
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- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000004364 calculation method Methods 0.000 claims abstract description 13
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention relates to an air conditioner energy efficiency testing device which comprises a handheld shell, wherein a controller, a power supply module, a wireless communication module, a data acquisition module and a liquid crystal display are arranged in the handheld shell, the power supply module, the wireless communication module, the data acquisition module and the liquid crystal display are connected with the controller, the input end of the data acquisition module is respectively connected with an environment temperature sensor, an air speed sensor, a voltage transformer and a current transformer through an interface module, and the wireless communication module is in information communication with an external mobile terminal through a 4G network. The air conditioner energy efficiency testing device firstly completes sensing detection of circulating air conditioner air speed, indoor and outdoor temperature, voltage and current through the environment temperature sensor, the air speed sensor, the voltage transformer, the current transformer and the data acquisition module, then obtains a single air conditioner energy efficiency ratio through formula calculation, and enables an energy efficiency value testing result to be more accurate and reasonable through repeated testing.
Description
Technical Field
The invention relates to the technical field of air conditioner energy efficiency tests, in particular to an air conditioner energy efficiency test device for a split wall-mounted air conditioner.
Background
In recent years, the air conditioning industry has been rapidly developed and has become an integral part of our lives. The rapid popularization of air conditioner has brought new energy consumption problem, and traditional air conditioner efficiency testing arrangement has mostly adopted the mode of pre-installation energy meter, all installs one set of energy metering device promptly in every system, inseparable in the metering device embedding system completely, and will analyze a lot of data, if will install energy metering device additional and just must reform transform whole air conditioner computer lab system, can cause the system cost too high like this. In addition, the conventional device adopts wired communication, the data transmission speed is slow, and the staff cannot obtain data in time. The main factors affecting the energy efficiency of the air conditioner are the indoor temperature, the outdoor temperature and the air supply gear speed. Therefore, in order to save cost, realize wireless transmission and improve the level and convenience of energy efficiency detection, a simple air conditioner energy efficiency testing device needs to be designed, the influence caused by the three factors is analyzed, and the air conditioner energy efficiency is reasonable.
Disclosure of Invention
The invention aims to provide an air conditioner energy efficiency testing device to solve the problems in the background technology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an air conditioner energy efficiency testing device comprises a handheld shell, wherein a controller, a power supply module, a wireless communication module, a data acquisition module and a liquid crystal display are arranged in the handheld shell, the power supply module, the wireless communication module, the data acquisition module and the liquid crystal display are respectively connected with the controller, and the input end of the data acquisition module is respectively connected with an environment temperature sensor, an air speed sensor, a voltage transformer and a current transformer through an interface module; the environment temperature sensor is used for measuring indoor and outdoor temperatures; the wind speed sensor is used for measuring circulating wind speed; the voltage transformer and the current transformer are used for measuring voltage and current respectively and calculating the average power of the air conditioner; the wireless communication module is in information communication with an external mobile terminal through a 4G network.
In the above scheme, the handheld shell is composed of an upper cover and a lower bottom, the joint of the handheld shell and the lower bottom is sealed by rubber, the bottom end of the assembly of the lower bottom is provided with a plurality of test interfaces for installing interface modules, and the test interfaces are isolated by adopting anti-static plastic plates.
In the above scheme, the interface module receives consistent voltage signals from the ambient temperature sensor, the wind speed sensor, the voltage transformer and the current transformer respectively, and transmits the consistent voltage signals to the data acquisition module.
In the scheme, the liquid crystal display is used for displaying indoor and outdoor temperatures, circulating wind speeds and energy efficiency ratios so as to carry out visual analysis and evaluation on the energy efficiency ratios.
In the above scheme, the mobile terminal is a computer or a smart phone provided with parameters required by energy efficiency calculation.
Compared with the prior art, the invention has the beneficial effects that: the data acquisition module is connected with the environment temperature and humidity sensor, the wind speed sensor, the voltage sensor and the current sensor through the interface module, and respectively acquires data such as indoor and outdoor temperature, air supply gear speed, voltage and current, the liquid crystal display is used for displaying related data, and the wireless communication module is used for transmitting test data to the mobile terminal. The air conditioner energy efficiency testing device can provide a real-time data recording function, can continuously test for a long time, can provide a network transmission or 4G transmission function of real-time data, and can be used for receiving and storing data in different places by testing personnel and processing the data after the test is finished. And the energy efficiency ratios under different measurement values are obtained and displayed by adopting multi-cycle test comprehensive calculation, and the comprehensive energy efficiency ratio adopts a 5% low-level value, so that the influence of different scenes of different air supply gear speeds and indoor temperatures on the energy efficiency ratio of the air conditioner is effectively reduced, and the test result is more accurate and reasonable. The invention provides rich results of the air conditioner energy efficiency test, can be used for scientifically analyzing the air conditioner energy efficiency test, simplifies the field energy efficiency test, effectively reduces the test error of the device and improves the energy efficiency test effect.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a schematic block diagram of the system of the present invention;
FIG. 2 is a flow chart of the present invention in calculating an energy efficiency ratio;
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described in detail with reference to the attached drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution to which the present invention relates.
According to the technical scheme of the invention, a plurality of alternative structural modes and implementation modes can be provided by a person with ordinary skill in the art without changing the essential spirit of the invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.
As shown in FIG. 1, the air conditioner energy efficiency testing device comprises a handheld shell, wherein ABS plastic is used as the material of the handheld shell. The handheld shell consists of an upper cover and a lower bottom, and the joint of the handheld shell and the lower bottom is sealed by rubber, so that the electromagnetic interference resistance and the sealing performance of the testing device are improved. The bottom end of the gathering part of the lower bottom is provided with a plurality of testing interfaces for installing the interface module, and each testing interface is isolated by adopting an anti-static plastic plate, so that the mutual influence of signals among all ports is reduced, and the testing precision is improved.
The hand-held type shell internally mounted has controller, power module, wireless communication module, data acquisition module and LCD, and power module, wireless communication module, data acquisition module and LCD are connected with the controller respectively, and data acquisition module's input is connected with ambient temperature sensor, air velocity transducer, voltage transformer, current transformer respectively through interface module. The interface module receives consistent voltage signals from the environment temperature sensor, the wind speed sensor, the voltage transformer and the current transformer respectively and transmits the consistent voltage signals to the data acquisition module.
The power module is used for providing power for the energy efficiency testing device, the data acquisition module is used for receiving data information of each sensor or acquisition component, and the liquid crystal display is used for displaying indoor and outdoor temperature, circulating wind speed and energy efficiency ratio so as to carry out visual analysis and evaluation of the energy efficiency ratio.
The environment temperature sensor is used for measuring indoor and outdoor temperature, adopts a ZKYC-3 type air temperature sensor, is suitable for general environment test, and has a temperature range of-30-70 ℃. The wind speed sensor is used for measuring circulating wind speed, the wind speed sensor adopts an ZKC-1F1 type wind speed sensor, the detection is accurate and quick, and the wind speed range is 0-40 ms. The voltage transformer and the current transformer respectively measure voltage and current for calculating the average power of the air conditioner; the wireless communication module is in information communication with an external mobile terminal through a 4G network, and the mobile terminal is a computer or a smart phone provided with parameters required by energy efficiency calculation.
The data acquisition module is connected with the environment temperature and humidity sensor, the wind speed sensor, the voltage sensor and the current sensor through the interface module, and respectively acquires data such as indoor and outdoor temperature, air supply gear speed, voltage and current, the liquid crystal display is used for displaying related data, and the wireless communication module is used for transmitting test data to the mobile terminal.
During implementation, the influence of different scenes of air supply gear speed and indoor temperature on the energy efficiency ratio of the air conditioner is mainly analyzed, the air supply gear speed scene is manually set for the split wall-mounted air conditioner by a tester, and the indoor temperature is manually set for the split wall-mounted air conditioner by the tester; the outdoor temperature is randomly determined by the external operating environment. The energy efficiency ratio is calculated by the existing formula and adopts a 5% low value, and the test result is more accurate and reliable through multiple tests.
The specific implementation calculation process is shown in fig. 2:
measuring circulating wind speed, indoor and outdoor temperature, voltage and current; calculating the average power through the measured value, and further calculating the energy efficiency ratio of the air conditioner; and analyzing the energy efficiency, testing for many times, comparing the energy efficiency ratios obtained by calculation under different measurement values, recording the test results and drawing an energy efficiency graph, so that the air conditioner energy efficiency test obtains a reasonable energy efficiency value.
The experimental subject selects a split wall-mounted air conditioner, and the efficiency ratio of the air conditioner is calculated by adopting the following calculation formula:
in the formula: q is the refrigerating capacity of the air conditioner, and P is the average power of the air conditioner in the refrigerating stage when the compressor is started.
The refrigerating capacity Q is calculated as follows:
Q＝3.6CgVgΔT
in the formula, C is the specific heat capacity of air at the average temperature, g is the air density at the average temperature, V is the circulating air volume, delta T is the air inlet and outlet temperature difference of the evaporator, and 3.6 is a conversion coefficient.
The formula of the circulating air volume is as follows: vSt
In the formula, v is the measured wind speed, S is the area of the air outlet, and t is unit time.
And calculating the average power of the air conditioner by using the formula P-VIcos theta. In order to ensure that the test power parameter is more accurate, a computer, a mobile phone or other equipment, modules and the like with a calculation function can be selected and adopted, a synchronization method realizes the problem of synchronous sampling of power calculation, the synchronization of voltage and current is required to be completed, and the consistency of a sampling period and the electric power signal period of a tested power supply system and the accurate measurement of the voltage and current phase difference are ensured.
In the energy efficiency analysis link, after the air supply gear speed, the indoor temperature and the outdoor temperature are changed, aiming at different values of the three variables, a formula P is calculated by using a formula P-VIcos theta air conditioner efficiency ratio calculation formula, air conditioner energy efficiency ratios in different scenes are obtained, different scene data and energy efficiency value data are recorded, and a 5% low-bit value is used as a final energy efficiency value of the tested air conditioner.
Parameters required by test calculation can be set by the mobile terminal through a communication module or a local default of the device, and the set parameters comprise air specific heat capacity at average temperature, air density at average temperature and air outlet area of an air conditioner.
Multiple tests are required for the same parameter. For example, the same windshield is tested for 3 times, and the energy efficiency ratio is calculated by averaging the results of the 3 tests. Therefore, the test result can be more accurate, and the air conditioner energy efficiency test result can be a more reasonable value.
Aiming at the requirements of the energy efficiency of the split wall-mounted air conditioner, the energy efficiency testing device of the air conditioner can provide a real-time data recording function, can perform long-term continuous testing, can provide a network transmission or 4G transmission function of real-time data, and can be used for receiving and storing data in different places by testers and processing the data after the testing is finished. And the energy efficiency ratios under different measurement values are obtained and displayed by adopting multi-cycle test comprehensive calculation, and the comprehensive energy efficiency ratio adopts a 5% low-level value, so that the influence of different scenes of different air supply gear speeds and indoor temperatures on the energy efficiency ratio of the air conditioner is effectively reduced, and the test result is more accurate and reasonable. The invention provides rich results of the air conditioner energy efficiency test, can be used for scientifically analyzing the air conditioner energy efficiency test, simplifies the field energy efficiency test, effectively reduces the test error of the device and improves the energy efficiency test effect.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides an air conditioner efficiency testing arrangement, includes hand-held type shell, its characterized in that: the handheld type wind power generation system comprises a handheld type shell, a wind speed sensor, a voltage transformer and a current transformer, wherein a controller, a power supply module, a wireless communication module, a data acquisition module and a liquid crystal display are arranged in the handheld type shell, the power supply module, the wireless communication module, the data acquisition module and the liquid crystal display are respectively connected with the controller, and the input end of the data acquisition module is respectively connected with the environment temperature sensor, the wind speed sensor, the voltage transformer and the current transformer through; the environment temperature sensor is used for measuring indoor and outdoor temperatures; the wind speed sensor is used for measuring circulating wind speed; the voltage transformer and the current transformer are used for measuring voltage and current respectively and calculating the average power of the air conditioner; the wireless communication module is in information communication with an external mobile terminal through a 4G network.
2. An air conditioner energy efficiency testing device according to claim 1, characterized in that: the handheld shell is composed of an upper cover and a lower bottom, the joint of the handheld shell and the lower bottom is sealed through rubber, a plurality of test interfaces used for installing interface modules are arranged at the bottom end of the assembly of the lower bottom, and the test interfaces are isolated through anti-static plastic plates.
3. An air conditioner energy efficiency testing device according to claim 1, characterized in that: the interface module receives consistent voltage signals from the ambient temperature sensor, the wind speed sensor, the voltage transformer and the current transformer respectively and transmits the consistent voltage signals to the data acquisition module.
4. An air conditioner energy efficiency testing device according to claim 1, characterized in that: the liquid crystal display is used for displaying indoor and outdoor temperature, circulating wind speed and energy efficiency ratio so as to carry out visual analysis and evaluation on the energy efficiency ratio.
5. An air conditioner energy efficiency testing device according to claim 1, characterized in that: the mobile terminal is a computer or a smart phone provided with parameters required by energy efficiency calculation.
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| CN202110312587.XA CN112946406A (en) | 2021-03-24 | 2021-03-24 | Air conditioner efficiency testing arrangement |
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| CN202110312587.XA CN112946406A (en) | 2021-03-24 | 2021-03-24 | Air conditioner efficiency testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740758A (en) * | 2021-09-04 | 2021-12-03 | 深圳一信泰质量技术有限公司 | Automatic energy efficiency testing method, device, equipment and medium for power supply product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205262773U (en) * | 2015-11-30 | 2016-05-25 | 华东建筑设计研究院有限公司 | On --spot testing arrangement of split air conditioner efficiency |
| CN108006894A (en) * | 2017-12-12 | 2018-05-08 | 湖南省计量检测研究院 | A kind of Portable type central air-conditioning energy efficiency monitoring method for early warning |
| CN207662980U (en) * | 2017-12-12 | 2018-07-27 | 湖南省计量检测研究院 | A kind of Portable type central air-conditioning energy efficiency monitoring device |
| CN211650649U (en) * | 2019-12-09 | 2020-10-09 | 广西电网有限责任公司南宁供电局 | Central air conditioning efficiency monitoring system |
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- 2021-03-24 CN CN202110312587.XA patent/CN112946406A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205262773U (en) * | 2015-11-30 | 2016-05-25 | 华东建筑设计研究院有限公司 | On --spot testing arrangement of split air conditioner efficiency |
| CN108006894A (en) * | 2017-12-12 | 2018-05-08 | 湖南省计量检测研究院 | A kind of Portable type central air-conditioning energy efficiency monitoring method for early warning |
| CN207662980U (en) * | 2017-12-12 | 2018-07-27 | 湖南省计量检测研究院 | A kind of Portable type central air-conditioning energy efficiency monitoring device |
| CN211650649U (en) * | 2019-12-09 | 2020-10-09 | 广西电网有限责任公司南宁供电局 | Central air conditioning efficiency monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740758A (en) * | 2021-09-04 | 2021-12-03 | 深圳一信泰质量技术有限公司 | Automatic energy efficiency testing method, device, equipment and medium for power supply product |
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