CN203976235U - Electric block energy efficiency testing device - Google Patents
Electric block energy efficiency testing device Download PDFInfo
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- CN203976235U CN203976235U CN201420263236.XU CN201420263236U CN203976235U CN 203976235 U CN203976235 U CN 203976235U CN 201420263236 U CN201420263236 U CN 201420263236U CN 203976235 U CN203976235 U CN 203976235U
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Abstract
The utility model discloses a kind of electric block energy efficiency testing device, for electric block is carried out to efficiency test and efficiency grade evaluation, apparatus structure comprises electric current and voltage modular converter, electric current and voltage sampling module, electric energy metering module, microprocessor module, lifting velocity measurement module, communication module and human-computer interaction module.The utility model completes by measuring electric block the energy that the action that hoists is inputted within several circular flow cycles, electric block completes the potential variation value that the action that hoists produces in the cycle of operations of regulation, according to the working level of electric block, obtain power consumption, efficiency and the efficiency grade of electric block.Install convenient flexible, can not rely on electric hoist test bench, can be on the test cell of electric block test cell and with testing on hoisting crane, the energy-conservation examination to electric block and supervision, popularization electric block energy saving technology, to set up conservation-minded society significant.
Description
Technical field
The utility model relates to electric block, relates in particular to a kind of electric block energy efficiency testing device.
Background technology
Electric block because of its compact conformation, easily manufactured, the features such as simple and easy, easy to maintenance, cheap and flexible operation are installed, be widely used in the lifting mechanism of hoisting crane.From mid-term the 1950's; China's hoist crane industry is through the development of decades; that all position is at the forefront in the world for number of the enterprise, scale or employment volume; according to incompletely statistics; 2013 the end of the year China have nearly 400 of electric block manufacturing enterprise; more than 90 ten thousand of yearlys output, the coming years, China's electric block market will keep exceeding 40% average speedup.Use calculate the averaging time of electric block according to current China, use energy-conservation 30% frequency conversion electric block, within 8 years, at least can save 2000 yuan of left and right, the whole nation is all used can save 4,000 hundred million yuan, if and use energy-conservation more than 50% DC frequency-changing electric block, 660,000,000,000 Renminbi at least can be saved in the whole nation.Adjust according to domestic electric power environmental expert: every saving 1 degree electricity, just can reduce the powdered carbon dirt of 0.272 kilogram, the carbon dioxide of 0.997 kilogram, the discharge of the pollutants such as sulphur dioxide, the carbon oxygen of 0.015 kilogram of 0.03 kilogram, the energy conservation of carrying out as seen electric block industry has extremely important realistic meaning.
As the elevator machinery of special equipment important component part, also not about the specialized equipment of efficiency test, evaluation aspect, this does not all conform in the situation of the energy-conservation upsurge of rising with the whole nation so far.For electric block, on market, more there is no electric block energy efficiency testing device.Current electric block type test and product quality inspection test cell only can be controlled electric block action and the simple collection to electrical quantity, there is no the functions such as data integrate processing, can not meet electric block efficiency test needs, energy efficiency supervision and energy-saving monitoring to electric block production and use have all brought difficulty, therefore, need a kind of electric block efficiency test instrument of simple possible badly.
Utility model content
There is no the problem of the testing tool of simple possible for the efficiency test of current electric block, applicant's empirical studies is improved, and a kind of electric block energy efficiency testing device is provided.
The technical solution of the utility model is as follows:
The utility model provides a kind of electric block energy efficiency testing device, comprises electric current and voltage modular converter, electric current and voltage sampling module, electric energy metering module, microprocessor module, lifting velocity measurement module, communication module and human-computer interaction module;
Described electric current and voltage modular converter, formed by transformer, the primary side access electric block current supply circuit of transformer, the secondary side access electric current and voltage sampling module of transformer, large electric current, the voltage signal of electric block power circuit are converted to little electric current, the voltage signal of equivalence, realize the isolation of current supply circuit and measuring circuit;
Described electric current and voltage sampling module, formed by intelligent electric meter, the secondary side of the transformer of access electric current and voltage modular converter, by the voltage of the secondary side to transformer, the AC sampling of current return, realize the high-acruracy survey to three phasevoltage, three phase current, active volt-amperes, reactive volt-amperes, power factor, frequency and four-quadrant electric energy in electrical network;
Described electric energy metering module, is connected with electric current and voltage sampling module, for the voltage after the sampling of electric current and voltage sampling module, current conversion are become to the impulse singla with power conversion;
Described microprocessor module, be connected with electric energy metering module, receive after the pulsed power signal of electric energy metering module, calculating voltage, electric current, power parameter, and according to the mode of operation of the parameter control electric energy metering module arranging, display measurement value simultaneously, and communicate by RS485 bus and host computer;
Described lifting velocity measurement module, formed by hoisting crane speed displacement survey meter, hoist and descending speed for sensing electric block, have the function of range observation concurrently, complete the detection of lifting altitude, the equidistant index of the spacing height of suspension hook, the result of a measurement input human-computer interaction module of lifting velocity;
Described communication module, is connected with microprocessor module and human-computer interaction module, for the data exchange between microprocessor module and human-computer interaction module and control;
Described human-computer interaction module, is connected with microprocessor module by communication module, shows and system setting for parameter input, test control, data processing, data.
Useful technique effect of the present utility model is:
Electric block energy efficiency testing device of the present utility model is the visual plant that electric block is carried out to efficiency test and efficiency grade evaluation, within several circular flow cycles, complete by measuring electric block the energy that the action that hoists is inputted, electric block completes the potential variation value that the action that hoists produces in the cycle of operations of regulation, obtains power consumption, efficiency and the efficiency grade of electric block according to the working level of electric block.Install convenient flexible, can not rely on electric hoist test bench, can be on the test cell of electric block test cell and with testing on hoisting crane, the energy-conservation examination to electric block and supervision, popularization electric block energy saving technology, to set up conservation-minded society significant.
Brief description of the drawings
Fig. 1 is electric block energy efficiency testing device constructional drawing.
Fig. 2 is three-phase three-wire system electric block efficiency test interconnecting wiring diagram.
Fig. 3 is three-phase four-wire system electric block efficiency test interconnecting wiring diagram.
Fig. 4 is the fundamental diagram of current transformer.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
As shown in Figure 1, electric block energy efficiency testing device of the present utility model, comprising: electric current and voltage modular converter 1, electric current and voltage sampling module 2, electric energy metering module 3, microprocessor module 4, lifting velocity measurement module 5, communication module 6 and human-computer interaction module 7.
Electric current and voltage modular converter 1 is made up of transformer, the main current supply circuit of primary side access electric block of transformer, the secondary side access electric current and voltage sampling module 2 of transformer, large electric current, the voltage signal of electric block power circuit are converted to little electric current, the voltage signal of equivalence, realize the conversion to small-signal of high potential, large current signal, realize the isolation of current supply circuit and measuring circuit simultaneously, improved the antijamming capability of device.
Electric current and voltage sampling module 2 is made up of intelligent electric meter, by the AC sampling to voltage, current return, realize after treatment the high-acruracy survey to three phasevoltage, three phase current, active volt-amperes, reactive volt-amperes, power factor, frequency and four-quadrant electric energy in electrical network.
Electric energy metering module 3, for metered voltage, electric current, and calculates apparent power (VA), power factor
the parameters such as active volt-amperes.Voltage, electric current after sampling convert the impulse singla with power conversion to via electric energy metering module 3.
Microprocessor module 4, microprocessor module 4 receives the parameters such as calculating voltage after pulsed power signal, electric current, power, and according to the mode of operation of the parameter control electric energy metering module 3 arranging, display measurement value simultaneously, and communicate by RS485 bus and host computer.
Lifting velocity measurement module 5, adopts CSDM-1 hoisting crane speed displacement survey meter, hoists and descending speed for sensing electric block, has the function of range observation concurrently simultaneously, can complete the detection of lifting altitude, the equidistant index of the spacing height of suspension hook.The result of a measurement input human-computer interaction module 7 of lifting velocity.
Communication module 6, for data exchange and control between microprocessor module 4 and human-computer interaction module 7.
Human-computer interaction module 7, shows and system setting for parameter input, test control, data processing, data.
Above-mentioned each parts are commercial goods.
Fig. 2, Fig. 3 are the test interconnecting wiring diagram after this device is integrated in cabinet.Wherein, as shown in Figure 2, the electric block efficiency test wiring of three-phase four-wire system as shown in Figure 3 in the electronic calabash efficiency test wiring of three-phase three-wire system.
A. measurement voltage signal input, A, B, C three phasevoltage directly access this device.For three-phase three-wire system, three live wires directly access respectively tri-terminals of Ua, Un, Uc of this device cabinet bonnet; For three-phase four-wire system, three live wires directly access respectively tri-terminals of Ua, Ub, Uc of this device cabinet bonnet, and neutral line connects Un terminals.
B. measure current signal input, A, B, C three phase current access this device by current transformer separately.When wiring, every phase line all penetrates from the P1 end of current transformer, and P2 end passes.For three-phase three-wire system, the S1 end of two current transformers is accessed respectively to Ia* and the Ic* terminals of this device cabinet bonnet, S2 end accesses respectively Ia and the Ic terminals of this device cabinet bonnet, simultaneously S2 end ground connection; For three-phase four-wire system, the S1 end of three current transformers is accessed respectively to Ia*, Ib* and the Ic* terminals of this device cabinet bonnet, S2 end accesses respectively Ia, Ib and the Ic terminals of this device cabinet bonnet, simultaneously S2 end ground connection.The principle of work of current transformer as shown in Figure 4.
C. power supply input, 220V alternating current accesses L and the N terminals of this device case front panel.
D. export host computer to, PC connects A+ and the B-terminals of this device case front panel 485 communication interfaces.
The description of operation of this device is as follows:
1, electric block efficiency test condition
1.1, test event and data
1) lifting altitude.
2) stable state and transient state three phasevoltage, three phase current, active volt-amperes, reactive volt-amperes, power factor, frequency and four-quadrant electric energy.
1.2, test instrument
Test instrument comprises: transformer, intelligent electric meter, hoisting crane speed displacement survey meter, standard test weight, multi-meter and conventional electrician's instrument etc.
1.3, test condition and dead work
When electrical quantity gathers, electrical measurement is carried out voltage, electric current, power simultaneously simultaneously.
The on-position of transformer or electric energy meter should be the electric control box input end of electric block.
Input voltage, received current, horsepower input should adopt digital sample record, and sampling frequency should be lower than 10 times/ms.
In process of the test, test counterweight is answered held stationary, the shake that do not have, waves phenomenon.
The permissible variation of test load is ± 1%.
The voltage fluctuation that when test, electric power system accesses out at hoisting crane flow wire should not exceed ± and 10%; Imbalance of three-phase voltage rate is not more than 1.5%.
2, electronic calabash efficiency test flow process
2.1, basic specification obtains
Test and record electric block lifting altitude, running velocity hoists.Record electric block factory number, device name, applying unit, working level, rated load weight, motor model (work system, connect electric water holdup, rating horsepower, rated voltage, rated current).
2.2, setup test load
Load standard test weight, load the counterweight of rated load weight.If counterweight weight can not meet rated load weight when the utility model test, be not less than 80% rated load weight and also can draw correct result.
2.3, testing tool wiring and parameter setting
Before test, as shown in Figures 2 and 3.Three phasevoltage directly accesses proving installation intelligent electric meter.For three-phase three-wire system, three live wires directly access respectively proving installation cabinet bonnet Ua, Un, Uc tri-terminals; For three-phase four-wire system, three live wires directly access respectively proving installation cabinet bonnet Ua, Ub, Uc tri-terminals, and neutral line connects Un end.Three phase current is by current transformer access proving installation ammeter separately.When wiring, every phase line all penetrates from the P1 end of current transformer, and P2 end passes.For three-phase three-wire system, the S1 end of two current transformers is connect respectively to Ia* and the Ic* terminals of proving installation cabinet bonnet, S2 end connects respectively Ia and the Ic terminals of proving installation cabinet, and S2 end needs ground connection simultaneously; For three-phase four-wire system, the S1 of three current transformers is held to Ia*, Ib* and the Ic* terminals of the case bonnet that picks respectively, S2 end connects respectively Ia, Ib and the Ic terminals of ammeter, and S2 end needs ground connection simultaneously.485 communication interfaces by proving installation case front panel are connected with host computer; Proving installation connects 220V alternating current.
Intelligent electric meter test parameter is set, voltage, electric current, apparent power (VA), power factor
the parameters such as active volt-amperes.
CSDM-1 hoisting crane speed displacement survey meter initial displacement is set, degree of testing the speed, side displacement model.
2.4, operation test
According to different Electromotion Hoist Mechanism working level and velocity mode, the cycle of operations specifying according to GB/T30028-2013 " electric block efficiency test method " appendix A and operation scheme operation.Repeat 10 times.
2.5, acquisition and recording data
Measure electric block completes and hoists and consumption, running velocity and the range ability of down maneuver energy in the cycle of operations of regulation.
Record electric block according to the lifted load of electric block and the stroke that hoists completes and hoists and the variation of the potential energy that down maneuver produces in the cycle of operations of regulation.
Test load is rated load weight, and test load deviation is not more than 1%; Test stroke is by the specified stroke that hoists of electric block.In situation for load and the stroke limiting that hoists, test load can be minimum to be down to 80% of rated load, and the test stroke minimum that hoists also can be down to 25% of the specified stroke that hoists, and test result is unaffected like this.
2.6, record efficiency value
The consumption of cycle of operations self-energy and potential variation record the efficiency value of electric block according to the rules.
2.7, table look-up and determine efficiency grade
According to the working level of electric block and efficiency value, table look-up electric block is carried out to efficiency grade classification and evaluation.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite that does not depart from spirit of the present utility model and design, within all should thinking and being included in protection domain of the present utility model.
Claims (1)
1. an electric block energy efficiency testing device, is characterized in that: comprise electric current and voltage modular converter, electric current and voltage sampling module, electric energy metering module, microprocessor module, lifting velocity measurement module, communication module and human-computer interaction module;
Described electric current and voltage modular converter, formed by transformer, the primary side access electric block current supply circuit of transformer, the secondary side access electric current and voltage sampling module of transformer, large electric current, the voltage signal of electric block power circuit are converted to little electric current, the voltage signal of equivalence, realize the isolation of current supply circuit and measuring circuit;
Described electric current and voltage sampling module, formed by intelligent electric meter, the secondary side of the transformer of access electric current and voltage modular converter, by the voltage of the secondary side to transformer, the AC sampling of current return, realize the high-acruracy survey to three phasevoltage, three phase current, active volt-amperes, reactive volt-amperes, power factor, frequency and four-quadrant electric energy in electrical network;
Described electric energy metering module, is connected with electric current and voltage sampling module, for the voltage after the sampling of electric current and voltage sampling module, current conversion are become to the impulse singla with power conversion;
Described microprocessor module, be connected with electric energy metering module, receive after the pulsed power signal of electric energy metering module, calculating voltage, electric current, power parameter, and according to the mode of operation of the parameter control electric energy metering module arranging, display measurement value simultaneously, and communicate by RS485 bus and host computer;
Described lifting velocity measurement module, formed by hoisting crane speed displacement survey meter, hoist and descending speed for sensing electric block, have the function of range observation concurrently, complete the detection of lifting altitude, the equidistant index of the spacing height of suspension hook, the result of a measurement input human-computer interaction module of lifting velocity;
Described communication module, is connected with microprocessor module and human-computer interaction module, for the data exchange between microprocessor module and human-computer interaction module and control;
Described human-computer interaction module, is connected with microprocessor module by communication module, shows and system setting for parameter input, test control, data processing, data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263236.XU CN203976235U (en) | 2014-05-21 | 2014-05-21 | Electric block energy efficiency testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263236.XU CN203976235U (en) | 2014-05-21 | 2014-05-21 | Electric block energy efficiency testing device |
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| Publication Number | Publication Date |
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| CN203976235U true CN203976235U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420263236.XU Expired - Fee Related CN203976235U (en) | 2014-05-21 | 2014-05-21 | Electric block energy efficiency testing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964312A (en) * | 2014-05-21 | 2014-08-06 | 江苏省特种设备安全监督检验研究院无锡分院 | Energy efficiency testing device and method for electric hoist |
| CN107628538A (en) * | 2017-11-07 | 2018-01-26 | 江苏省特种设备安全监督检验研究院 | Electric block control system and method based on isolation control |
| CN107702752A (en) * | 2017-11-07 | 2018-02-16 | 江苏省特种设备安全监督检验研究院 | Electric block efficiency remote gathering system and method |
| CN107727972A (en) * | 2017-11-07 | 2018-02-23 | 江苏省特种设备安全监督检验研究院 | Electric block efficiency Auto-Test System and method |
-
2014
- 2014-05-21 CN CN201420263236.XU patent/CN203976235U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964312A (en) * | 2014-05-21 | 2014-08-06 | 江苏省特种设备安全监督检验研究院无锡分院 | Energy efficiency testing device and method for electric hoist |
| CN107628538A (en) * | 2017-11-07 | 2018-01-26 | 江苏省特种设备安全监督检验研究院 | Electric block control system and method based on isolation control |
| CN107702752A (en) * | 2017-11-07 | 2018-02-16 | 江苏省特种设备安全监督检验研究院 | Electric block efficiency remote gathering system and method |
| CN107727972A (en) * | 2017-11-07 | 2018-02-23 | 江苏省特种设备安全监督检验研究院 | Electric block efficiency Auto-Test System and method |
| CN107702752B (en) * | 2017-11-07 | 2020-03-27 | 江苏省特种设备安全监督检验研究院 | Remote energy efficiency acquisition system and method for electric hoist |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161209 Address after: 210000 Nanjing, Gulou District, Jiangsu, No. 107 Main Street, grassland, building, Longjiang Patentee after: Jiangsu Special Equipment Vessel Supervisory Institute Address before: 214023 Yongfeng Road, Wuxi District, Jiangsu Province, No. 338 Patentee before: Jiangsu Province Special Equipment Safety Supervision Inspection Institute, Branch of Wuxi |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20200521 |