CN109297741A - A kind of storage-type electric water heater energy consumption testing device - Google Patents
A kind of storage-type electric water heater energy consumption testing device Download PDFInfo
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- CN109297741A CN109297741A CN201811387066.5A CN201811387066A CN109297741A CN 109297741 A CN109297741 A CN 109297741A CN 201811387066 A CN201811387066 A CN 201811387066A CN 109297741 A CN109297741 A CN 109297741A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000005265 energy consumption Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000007613 environmental effect Effects 0.000 claims abstract description 8
- 238000013480 data collection Methods 0.000 claims abstract description 4
- 230000004907 flux Effects 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 26
- 230000008569 process Effects 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004886 process control Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000012279 drainage procedure Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/16—Plc to applications
- G05B2219/163—Domotique, domestic, home control, automation, smart, intelligent house
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
A kind of storage-type electric water heater energy consumption testing device includes computer, and computer is electrically connected by data line and PLC, and PLC has water system, environmental control system, data collection system and automatic master control system by programming composition.The storage-type electric water heater energy consumption testing device, it is realized by PLC combination Pneumatic check valve into draining and is automatically controlled, ensure high temperature water flow energy stability contorting and locked purpose, and utilization and touch screen, computer and PLC triplicity, carry out the process control of water heater energy consumption testing and data acquisition, utilize laboratory existing equipment, system is recorded in conjunction with PLC control and Computerized real-time data acquisition, realize the detection of storage-type electric water heater energy consumption, the system expandability is strong and convenient to use and tests, test process can automatically control, to substantially reduce the investment of detection device, improve detection accuracy again simultaneously, expand test scope, the effect for keeping entire test process more reliable and more stable.
Description
Technical field
The present invention relates to storage-type electric water heater energy consumption testing technical field, specially a kind of storage-type electric water heater energy consumption
Test device.
Background technique
The horsepower requirements of storage-type electric water heater are at home and abroad mostly mandatory standard requirement, to the test method of energy consumption
Requirement with test equipment is also not quite similar, currently, many storage-type electric water heater energy consumption testing laboratories both at home and abroad, generally all
It is to carry out the detection of energy consumption using the special equipment to involve great expense, or test and calculate in the way of manual control, spends
A large amount of financial resources or manpower and material resources, and status is many electric test laboratories at present, has had been provided with certain water supply conditions
And environmental condition, if deduplication buying has the function of similar expensive equipment and single-minded is used for storage-type electric water heater energy again
Consumption detection, is a kind of waste and overlapping investment, is unfavorable for economizing on resources and reducing waste, is detected for example, having washing machine efficiency
Laboratory had water system, the control of water moderate pressure may be implemented；The laboratory of electrical safety also has
Chamber or the room for controlling environment, may be implemented the control of environment temperature, and water temperature hydraulic pressure and environmental condition are also storage-type
The necessary condition of electric heater energy consumption testing, and the cost for purchasing Wei these conditions are met equipment occupies the survey of water heater energy consumption
Try the major part of cost.In addition, the single-minded existing equipment for water heater energy consumption testing, there are expensive, but flexibility is poor,
The shortcomings that can not achieve multi-standard test request mostly.
Therefore, it is based on considerations above, the present apparatus is utilizing and is being transformed the original special equipment in laboratory, realizing water and environment
Basic demand, increase control system and data acquisition software for calculation in the case where, realize storage-type electric water heater energy consumption
Detection, the system expandability it is strong and convenient to use and test, test process can automatically control, to substantially reduce detection
The investment of equipment, while detection accuracy is improved again, test scope is expanded, the test request of multi-standard is realized.It is this low
The equipment high using original cost of cost realizes the test device of storage-type electric water heater energy consumption testing requirements after being transformed,
For being engaged in for the laboratory of storage-type electric water heater detection for lot of domestic and foreign, there is stronger feasibility and can promote
Property, in production field and third party testing agency practical value all with higher.
Summary of the invention
In view of the deficiencies of the prior art, it the present invention provides a kind of storage-type electric water heater energy consumption testing device, solves
The existing single-minded equipment for water heater energy consumption testing is there are expensive, but flexibility is poor, can not achieve multi-standard survey mostly
The problem of examination requires.
To achieve the above object, the invention provides the following technical scheme: a kind of storage-type electric water heater energy consumption testing device,
Including computer, the computer is electrically connected by data line and PLC, and the PLC has water system, ring by programming composition
The output end of border control system, data collection system and automatic master control system, the PLC is electrically connected by conducting wire with flowmeter
It connects, the nozzle of the flowmeter is connected to by waterpipe with water source, and the water outlet of the flowmeter passes through waterpipe and pneumatic operated valve 1
It is connected to, the pneumatic operated valve 1 is connected to by turning feed channel with the mutually reflux of solenoid valve 1, and the pneumatic operated valve 1 is by waterpipe and is tested
The control terminal of connection inside water heater sample water inlet pipe mouth, the solenoid valve 1 is electrically connected by data line and PLC, the electricity
The input end of pond valve 1 is connected to by feed channel with gas source, and the water outlet of the tested water heater sample is by waterpipe and pneumatically
Valve 2 is connected to, and the pneumatic operated valve 2 is connected to by turning feed channel with the mutually reflux of solenoid valve 2, and the outlet side of the solenoid valve 2 passes through
Feed channel is connected to gas source circulation, and the control terminal of the solenoid valve 2 is electrically connected by conducting wire and PLC, and the PLC passes through data
Line and contactor are electrically connected, and the output end of the contactor is connect by conducting wire with tested water heater sample, the temperature note
The test side of record instrument is connected to by conducting wire with tested water heater sample, and data terminal and the electrical parameter recorder of the contactor pass through
Connecting line is electrically connected with each other, and the data terminal and electrical parameter recorder of the moisture recorder pass through network router and calculate
Machine is electrically connected, and the PLC passes through data line and water flux gather instrument, temperature sensor, power consumption Acquisition Instrument and Weight acquisition instrument
Output end is electrically connected, the water flux gather instrument, temperature sensor, power consumption Acquisition Instrument and Weight acquisition instrument detector with quilt
The connection of calorimetric hydrophone sample detection.
Preferably, the water outlet of the pneumatic operated valve 2 is equipped with ball valve, and the control terminal of the ball valve passes through data line and PLC
It is electrically connected.
Preferably, the control terminal of the electrical parameter recorder is connected to by conducting wire with touch control screen, the touch control
The output end of screen is electrically connected by data line and computer.
Preferably, for the network router by conducting wire and external network-in-dialing, the network router provides WIFI hair
It penetrates.
Preferably, the moisture recorder, electrical parameter recorder and computer pass through WIFI electrical communication.
The present invention provides a kind of storage-type electric water heater energy consumption testing devices.Have it is following the utility model has the advantages that
The storage-type electric water heater energy consumption testing device is realized into draining by PLC combination Pneumatic check valve and is automatically controlled, and is ensured
High temperature water flow energy stability contorting and locked purpose, and utilization and touch screen, computer and PLC triplicity, carry out hot water
The process control of device energy consumption testing and data acquisition are adopted using laboratory existing equipment in conjunction with PLC control and Computerized real-time data
Collect record system, realizes the detection of storage-type electric water heater energy consumption, the system expandability is strong and convenient to use and tests, test
Process can automatically control, to substantially reduce the investment of detection device, while improve detection accuracy again, expand test
Range keeps entire test process more reliable and more stable, and accuracy of data acquisition is higher, and data export result and are illustrated, and facilitates operation
Effect.
Detailed description of the invention
Fig. 1 is structure of the invention system flow schematic diagram；
Fig. 2 is structure of the invention component circuitry connection figure；
Fig. 3 is structure of the invention water system schematic diagram；
Fig. 4 is the automatic culvert system schematic diagram of structure of the invention；
Fig. 5 is structure of the invention data acquisition schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-5, the present invention provides a kind of technical solution: a kind of storage-type electric water heater energy consumption testing device, packet
Computer is included, computer is electrically connected by data line and PLC, and PLC has water system, environmental Kuznets Curves system by programming composition
The output end of system, data collection system and automatic master control system, PLC is electrically connected by conducting wire and flowmeter, the pipe of flowmeter
Mouth is connected to by waterpipe with water source, and the water outlet of flowmeter is connected to by waterpipe with pneumatic operated valve 1, and pneumatic operated valve 1 is by turning gas
Pipeline is connected to the mutually reflux of solenoid valve 1, and pneumatic operated valve 1 is connected to by waterpipe and tested water heater sample water inlet pipe mouth inside,
The control terminal of solenoid valve 1 is electrically connected by data line and PLC, and the input end of battery valve 1 is connected to by feed channel with gas source, quilt
The water outlet of calorimetric hydrophone sample is connected to by waterpipe with pneumatic operated valve 2, and pneumatic operated valve 2 is mutual by turning feed channel and solenoid valve 2
The outlet side of reflux connection, solenoid valve 2 is connected to by feed channel with gas source circulation, and the control terminal of solenoid valve 2 passes through conducting wire and PLC
It is electrically connected, PLC is electrically connected by data line and contactor, and the output end of contactor passes through conducting wire and tested water heater sample
The test side of connection, moisture recorder is connected to by conducting wire with tested water heater sample, and the data terminal and electrical parameter of contactor are remembered
Record instrument be electrically connected with each other by connecting line, the data terminal and electrical parameter recorder of moisture recorder pass through network router with
Computer is electrically connected, and PLC passes through data line and water flux gather instrument, temperature sensor, power consumption Acquisition Instrument and Weight acquisition instrument
Output end is electrically connected, water flux gather instrument, temperature sensor, power consumption Acquisition Instrument and Weight acquisition instrument detector and by calorimetric
The connection of hydrophone sample detection, the water outlet of pneumatic operated valve 2 are equipped with ball valve, and the control terminal of ball valve is electrically connected by data line with PLC
It connects, the control terminal of electrical parameter recorder is connected to by conducting wire with touch control screen, and the output end of touch control screen passes through data line
It is electrically connected with computer, for network router by conducting wire and external network-in-dialing, network router provides WIFI transmitting, temperature
Recorder, electrical parameter recorder and computer pass through WIFI electrical communication, by using pneumatic operated valve rather than solenoid valve most
Big advantage is exactly that pneumatic operated valve can be used ambient temperature range high, also can stable operation under high temperature water flow.
In use, water system provides the constant temperature and pressure water source met the requirements of the standard first, wherein environmental control system is real
The stabilization of temperature and wind speed in existing test process, (as arranged under the conditions of then can realizing standard requirements automatically into drainage control system
Poor, quantitative requirement of coolant-temperature gage etc.) automatic feeding water drain function, it crosses adjustable range of flow and data acquisition and computing system is real
The automatic collection of the energy consumptions parameter such as temperature, electricity, water in existing test process, while can be according to different marks to collected data
Quasi- calculation formula is calculated, and realizes that energy consumption testing result is output to graphical interfaces or automatically with the side of Microsoft Excel data
Formula output, wherein it is carried out automatically controlling into drainage control system and data acquisition computing system by PLC and is acquired with data, into
Drainage system water inlet and discharge ends be mounted on Pneumatic check valve, using under high temperature water flow also can stable operation, in needs
When can lock completely, avoid other types control defective valve or cannot lock causes measuring accuracy not high, water inlet end dress
There is digital flowmeter, for the water during collecting test, discharge ends are equipped with ball valve, realize the control of flow in test process
The totality side that system, data acquisition and calculating system add PLC control, computer terminal graphical interfaces to show and calculate using system touch screen
Case, touch screen graphical interfaces facilitate the display for carrying out human-computer interaction and critical data, and PLC receives touch screen and Computer signal,
Realize that functions, the subsequent temperature signal collections such as control pneumatic operated valve, acquisition data, start-stop sample power supply are remembered by digital temperature
It records instrument to realize, electrical parameter is acquired by digital power meter, and temperature all can connect touch screen by cable with the data of electrical parameter and arrive
Computer, while the content being not described in detail in this specification belongs to existing skill well known to professional and technical personnel in the field
Art.
It wherein needs to provide data to its present apparatus and be analyzed as follows；
There are mainly two types of the method for testing energy consumption of storage-type electric water heater first is current, one is 60379 " Water storing electric heatings of IEC
Hydrophone performance test methods ", the national standard GB21519-2008 in China is exactly to have chosen some projects as energy consumption according to IEC standard
The index of test.The test method that another kind is formulated using U.S. Department of Energy, i.e. " United States Federal Regulations collection " " 10 CFR PART
The attachment E " performance test methods of water heater energy consumption " of 430, Subpart B ".Both test basic demand such as the following table 1.
The comparison of 1 test request of table
| Serial number | Test item | Unite States Standard | Chinese Industrial Standards (CIS) |
| 1 | Environmental condition | 19.7±1.4℃ | 20 ± 2 DEG C, air velocity≤0.25m/s |
| 2 | Water storage temperature | 57.2±2.8℃ | 65±3.0℃ |
| 3 | Inflow temperature | 14.4±1.1℃ | 15±5℃ |
| 4 | Intake pressure | When water storage box does not drain, pressure of supply water is stablized in 0.275Mpa and heat Between the maximum pressure that hydrophone manufacturer allows. | Closed water heater, when not draining pressure between 0.28Mpa and rated pressure, Fluctuation is between ± 0.05Mpa. |
| 5 | Drain discharge | 11.4±0.95L/min | According to rated capacity size, in the 2-10L/min or 5%L/min of rated capacity |
| 6 | Drain the temperature difference | 13.9℃ | 20℃ |
| 7 | Water discharging number | Repeatedly draining | Draining is primary or does not drain. |
From table 1 and relevant criterion requirement, a set of test macro generally consists of the following components: water system, environmental Kuznets Curves
System, into drainage control system, data acquisition, computing system etc..Test accuracy is improved simultaneously to save manpower, then into row
The links such as water and data acquisition are able to achieve automation, it is desirable that can drain and temperature collection, power consumption, stream automatically according to test condition
The parameters such as amount.
Secondly as can be seen from Table 1, requirement to water mainly has two when water heater energy consumption detects: water temperature and hydraulic pressure.Water
For temperature at 15 ° or so, hydraulic pressure 0.28Mpa or so, this just needs a set of constant temperature water source that can freeze, heat and pressurize.In washing machine
In energy consumption testing system, such a set of water system is also required.60456-2010 is to water temperature for washing machine energy consumption testing standard IEC
It is required that ° differing from 15 ° to 60, hydraulic pressure is 0.24 ± 0.05Mpa [3], it is seen then that if a laboratory has washing machine efficiency
Ability, only need to additionally lend a water supply loop, then water supply conditions can meet water heater energy consumption testing requirements, this measure
The cost of supply equipment will be substantially reduced.The system of this paper is just washed using Ningbo Entry-Exit Inspection and Quarantine Bureau technique center is original
Clothing machine water system additionally picks out a water supply and water return pipeline, provides under maximum 0.28Mpa hydraulic pressure, temperature range
For 10-70 DEG C of water supply, the water demand of water heater efficiency detection, water heater efficiency are realized in the case where increasing a little cost
One of key of test macro is the realization into draining automatically, and as can be seen from Table 1, national standard only needs once to drain, manually
Mode drainage problem is little.But American Standard but requires repeatedly to drain, condition whether two kinds of standards drain all is draining temperature
Difference.If this process manually controls, that will be a very laborious and complicated process, and test accuracy easily occurs partially
Difference.Whether this system is drained using computer program judgement (including water temperature difference and time and temperature controller power-off etc. no
Same condition), control the control valve at inflow and outflow end by PLC then to realize automation drainage procedure.Due to discharge water
Temperature highest has 65 DEG C or so, and for the sake of reliable, control valve is controlled using pneumatic operated valve into drainage procedure.The number of water discharge quantity
It is measured with turbine type digital flowmeter, flowmeter is connected to PLC and computer, storage-type electric water heater energy by network interface
Consumption detection need the data that acquire be mainly water heater consumes in test process electric energy, test environment and water heater water inlet,
The usage amount of water in draining and water storage temperature and test process, collected data require meter according still further to the calculating of each standard
Calculate energy consumption index parameter.In the data acquisition computing system designed herein, electrical parameter of the electric energy with network interface of consumption
Measuring instrument is realized；The acquisition of each temperature value is also realized with the temperature sensor with network interface；The usage amount number of water
Word formula turbine flowmeter transmits to acquire.Meanwhile in order to realize the automation to water heater volumetric measurement, the system of this paper is used
Then digital platform balance with network connecting function is removed the peel function by software and is controlled into draining, realizes the automatic of volume
Measurement.All collected data are transferred to after computer by calculating, and are as a result shown on computer graphical interface, together
When process data pass through Excel Output of for ms.In order to which the operational process of system is more intuitive and controls the speed reacted faster, it is
The main controlled node of system uses touch screen control, realizes the manually or automatically control in detection process, data acquisition on the touchscreen
Calculate node then realizes that corresponding function, the two are combined using computer program, the entire data acquisition of the realization of stability and high efficiency
Calculating process.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of storage-type electric water heater energy consumption testing device, including computer, it is characterised in that: the computer passes through data
Line and PLC are electrically connected, and the PLC has water system, environmental control system, data collection system and automatic by programming composition
Master control system, the output end of the PLC are electrically connected by conducting wire and flowmeter, the nozzle of the flowmeter by waterpipe with
Water source connection, the water outlet of the flowmeter are connected to by waterpipe with pneumatic operated valve 1, the pneumatic operated valve 1 by turn feed channel and
The mutually reflux connection of solenoid valve 1, the pneumatic operated valve 1 inside waterpipe and tested water heater sample water inlet pipe mouth by being connected to, institute
The control terminal for stating solenoid valve 1 is electrically connected by data line and PLC, and the input end of the battery valve 1 passes through feed channel and gas source
Connection, the water outlet of the tested water heater sample are connected to by waterpipe with pneumatic operated valve 2, and the pneumatic operated valve 2 is by turning tracheae
Road is connected to the mutually reflux of solenoid valve 2, and the outlet side of the solenoid valve 2 is connected to by feed channel with gas source circulation, the electromagnetism
The control terminal of valve 2 is electrically connected by conducting wire and PLC, and the PLC is electrically connected by data line and contactor, the contactor
Output end connect with tested water heater sample by conducting wire, the test side of the moisture recorder passes through conducting wire and tested hot water
The connection of device sample, the data terminal of the contactor are electrically connected with each other with electrical parameter recorder by connecting line, the temperature note
The data terminal and electrical parameter recorder for recording instrument pass through network router and computer is electrically connected, and the PLC passes through data line
It is electrically connected with the output end of water flux gather instrument, temperature sensor, power consumption Acquisition Instrument and Weight acquisition instrument, the water flux gather
Instrument, temperature sensor, power consumption Acquisition Instrument and Weight acquisition instrument detector be connected to tested water heater sample detection.
2. a kind of storage-type electric water heater energy consumption testing device according to claim 1, it is characterised in that: the pneumatic operated valve
2 water outlet is equipped with ball valve, and the control terminal of the ball valve is electrically connected by data line and PLC.
3. a kind of storage-type electric water heater energy consumption testing device according to claim 1, it is characterised in that: the electrical parameter
The control terminal of recorder is connected to by conducting wire with touch control screen, and the output end of the touch control screen by data line and calculates
Machine is electrically connected.
4. a kind of storage-type electric water heater energy consumption testing device according to claim 1, it is characterised in that: the network road
By device by conducting wire and external network-in-dialing, the network router provides WIFI transmitting.
5. a kind of storage-type electric water heater energy consumption testing device according to claim 4, it is characterised in that: the temperature note
Record instrument, electrical parameter recorder and computer pass through WIFI electrical communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811387066.5A CN109297741A (en) | 2018-11-21 | 2018-11-21 | A kind of storage-type electric water heater energy consumption testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811387066.5A CN109297741A (en) | 2018-11-21 | 2018-11-21 | A kind of storage-type electric water heater energy consumption testing device |
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| Publication Number | Publication Date |
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| CN109297741A true CN109297741A (en) | 2019-02-01 |
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| CN201811387066.5A Pending CN109297741A (en) | 2018-11-21 | 2018-11-21 | A kind of storage-type electric water heater energy consumption testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054794A (en) * | 2023-10-10 | 2023-11-14 | 北京中家智锐智能装备科技有限公司 | Water heater detection method and device |
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