CN204027800U - gas cooler performance testing device - Google Patents
gas cooler performance testing device Download PDFInfo
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- CN204027800U CN204027800U CN201420359785.7U CN201420359785U CN204027800U CN 204027800 U CN204027800 U CN 204027800U CN 201420359785 U CN201420359785 U CN 201420359785U CN 204027800 U CN204027800 U CN 204027800U
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Abstract
The utility model relates to a kind of gas cooler performance testing device.Different refrigeratory models is installed in the test section of return circuit wind tunnel, under different wind speed, water speed, by regulating the heating power of well heater and the Inlet and outlet water flow of hydrostatic column, the heat energy water that is just in time cooled is taken away, reach thermally-stabilised after, gather each measurand.By processing the numerical value of each measurand, can realize the research to test radiating property of cooler and windage performance.The running environment of the true and reliable simulation refrigeratory of the utility model in motor, there is the functions such as automatic control, automatic data acquisition, automatic data processing, Real-Time Monitoring, and means of testing advanced person, test data are accurate, can select most suitable refrigeratory for design of electrical motor test figure is accurately provided, for motor safety reliability service is given security.The utility model is applicable to all gas refrigeratory to carry out performance test.
Description
Technical field
The utility model relates to a kind of gas cooler performance testing device.
Background technology
Along with the development of motor cause, single-machine capacity improves constantly, and the cooling technology of motor has been proposed to the more requirement of Gao Gengxin.Gas cooler is that motor carries out heat exchange and cooling vitals, the quality of gas cooler heat radiation system energy directly affects the overall cooling effect of motor, therefore in design of electrical motor, selection heat dispersion is high, windage pressure drop is low and gas cooler economical rationality again is very important.The version of gas cooler comprises wrap spring type, around chip, aculeus type, squeeze chip and sheet assemble, heat-transfer matcrial comprises copper, naval's copper, aluminium, stainless steel, titanium etc.At present, domestic have a lot of refrigeratory manufacturing firm, and the heat dispersion of refrigeratory and the working ability of each producer, technological level and quality supervision that each producer manufactures have close relationship.The quality of radiating property of cooler will be carried out comprehensive evaluation according to coefficient of heat transfer and area of dissipation, and area of dissipation can be by calculating, but coefficient of heat transfer must could be determined through overtesting.Owing to there is no before this this proving installation, cause obtaining the accurate heat dispersion of different manufacturing firms, different structure form, different heat transfer material refrigeratory, calculating to refrigeratory and design are comparatively difficult and inaccurate, Novel cooler is not because having the test figure of science cannot be designed to adopt, and vast designing unit, manufacturer and applying unit is all badly in need of the performance data of various refrigeratorys.
Summary of the invention
The purpose of this utility model is to provide a kind of homogeneity, stability and percent ripple of test section wind speed field all ± 3%, can carry out to various gas coolers the gas cooler performance testing device of heat dispersion and windage performance study.The technical solution of the utility model is: a kind of gas cooler performance testing device, by contraction section, pressure-stabilizing section, diffuser, linkage section A, damping section, turbulent flow section, test section, test section, telescopic section, linkage section B, guide vane, centrifugal blower, frequency converter A, well heater, three-phase solid relay, hydrostatic column, water pump, frequency converter B, turbo flow meter, control desk composition, wherein contraction section, pressure-stabilizing section, diffuser, linkage section A, damping section, turbulent flow section, test section, test section, telescopic section, linkage section B is successively by the flange formation return circuit wind tunnel that is linked in sequence, corner at linkage section A and linkage section B is provided with guide vane, the refrigeratory model that needs test is installed in test section, centrifugal blower and frequency converter A are connected to form air feed system by electric wire, and centrifugal blower is arranged on the corner of linkage section A, and the fan blade of centrifugal blower is positioned at the pipeline of linkage section A corner, well heater and controlled three-phase solid relay are connected to form heating system by electric wire, and well heater is arranged on the top of linkage section A gas in pipelines is heated, water pump is connected by electric wire with frequency converter B, hydrostatic column, water pump and the water-in flange of refrigeratory model are connected by pipeline successively, water-output flange and the hydrostatic column of refrigeratory model are connected to form water passage circulation system by pipeline, and turbo flow meter is arranged in the connecting line of water pump and refrigeratory model water-in flange.
Technique effect
For homogeneity, stability and the percent ripple of warranty test section wind speed field is all in ± 3% scope, return circuit wind tunnel is provided with contraction section, pressure-stabilizing section, diffuser, damping section and turbulent flow section, be provided with guide vane in linkage section corner, thereby ensured the quality of wind speed field simultaneously.
For testing out really heat dispersion and the windage performance of gas cooler, first provide and meet return circuit wind tunnel test section sectional dimension by refrigeratory manufacturing firm, its row, pipe number and arrangement mode all with the identical refrigeratory model of motor intercooler, then such refrigeratory model is arranged in the test section of return circuit wind tunnel, and by making the easier for installation of refrigeratory model to the adjusting of telescopic section.
The pressure that produces gas flow at return circuit wind tunnel is provided by centrifugal blower, by realizing the adjusting to pressure and flow to the control of frequency converter A.The measurement of wind speed is to utilize the Pitot tube being arranged in pressure-stabilizing section to carry out the dynamic and static pressure of measurement gas, then delivers to differential pressure transmitter, feeds back finally by the anemoscope being arranged in control desk.Gaseous tension before and after refrigeratory model is that the pressure transducer by being arranged in test section feeds back.Water circulation in refrigeratory model in water pipe is to be provided by water pump by hydrostatic column, and by realizing the adjusting to water speed to the control of frequency converter B, water speed can be fed back by turbo flow meter.Hydrostatic column has independent thermal resistance heating arrangement, is also connected with sewer with tap water, can realize the adjusting to the water yield in container and water temperature.The hot and cold water temperature of refrigeratory model is to measure with two temperature sensors that are arranged on respectively in inlet and outlet pipe.For ensureing the accuracy of hot and cold water differential temperature survey, also in the Inlet and outlet water flange of refrigeratory model, thermopair is installed and has directly been measured water temperature difference, do contrast verification.Well heater can heat for the gas in return circuit wind tunnel, and the variable duty cycle signal sending by control three-phase solid relay is controlled well heater, realizes the adjusting to heating power.Two temperature sensors are installed in test section and are used for measuring cold and hot gas temperature.For more comprehensive measurement gas temperature, two copper wire resistance nets have also been installed in test section, calculate cold and hot gas temperature value according to the variation of resistance value, can determine like this face gas temperature instead of some gas temperature, the measured value of two temperature sensors is as the reference value of temperature computation.In order to ensure the security of proving installation operation, a temperature sensor is also installed near linkage section A well heater and has been used for detecting gas temperature, prevent that return circuit wind tunnel from causing potential safety hazard because gas temperature is too high.
By gas cooler performance testing device, various gas cooler models are carried out to the research of heat dispersion and windage performance, can determine coefficient of heat transfer and the air resistance coefficient of various refrigeratorys in the time of different water speed, different wind speed, for design, manufacture refrigeratory and design of electrical motor select optimal refrigeratory that test figure is accurately provided.What need particularly point out is, the former Soviet Union wrap spring type refrigeratory that domestic electric machine manufacturing firm tradition is used, its performance curve publishes at China's electricity and refers in (DZ) 29-63 " high-rating generator ventilation computing formula ", just suspect for a long time the inaccurate and conservative of its heat dispersion data, the actual coefficient of heat transfer of having determined this refrigeratory on gas cooler performance testing device by testing has exceeded 30% than the original coefficient of heat transfer that uses decades, from then on taking test figure as having reduced much according to the physical dimension that designs refrigeratory, directly reduce considerable financial cost.By various refrigeratory models being tested on gas cooler performance testing device, can realize the research to various radiating property of coolers and windage performance, can select the physical dimension of best cooler construction form and definite refrigeratory for design of electrical motor test figure is accurately provided, for motor safety reliability service is given security.The utility model gas cooler performance testing device has been filled up the blank of domestic generating set manufacturing enterprise in this field, has promoted the development of China's motor cause, has larger social benefit, is not also reported in international counterparts industry.
Brief description of the drawings
Fig. 1 is the utility model work schematic diagram
Fig. 2 is the partial enlarged drawing of test section and test section
Embodiment
As Fig. 1, shown in Fig. 2, a kind of gas cooler performance testing device, by contraction section 1, pressure-stabilizing section 2, diffuser 3, linkage section A4, damping section 5, turbulent flow section 6, test section 7, test section 8, telescopic section 9, linkage section B10, guide vane 11, centrifugal blower 12, frequency converter A 13, well heater 14, three-phase solid relay 15, hydrostatic column 16, water pump 17, frequency converter B 18, turbo flow meter 19, control desk 20 forms, wherein contraction section 1, pressure-stabilizing section 2, diffuser 3, linkage section A4, damping section 5, turbulent flow section 6, test section 7, test section 8, telescopic section 9, linkage section B10 is successively by the flange formation return circuit wind tunnel that is linked in sequence, corner at linkage section A4 and linkage section B10 is provided with guide vane 11, the refrigeratory model that needs test is installed in test section 8, centrifugal blower 12 is connected to form air feed system with frequency converter A 13 by electric wire, and centrifugal blower 12 is arranged on the corner of linkage section A4, and the fan blade of centrifugal blower 12 is positioned at the pipeline of linkage section A4 corner, well heater 14 is connected to form heating system with controlled three-phase solid relay 15 by electric wire, and well heater 14 is arranged on the top of linkage section A4 gas in pipelines is heated, water pump 17 is connected by electric wire with frequency converter B 18, the water-in flange 26 of hydrostatic column 16, water pump 17 and refrigeratory model is connected by pipeline successively, water-output flange 27 and the hydrostatic column 16 of refrigeratory model are connected to form water passage circulation system by pipeline, and turbo flow meter 19 is arranged in the connecting line of water pump 17 and refrigeratory model water-in flange 26.
Contraction section 1 and diffuser 3 are truncated cone-shaped pipeline, and pressure-stabilizing section 2 is that diameter is the cylindrical pipe of 200 millimeters, and linkage section A4, damping section 5, turbulent flow section 6, test section 7, test section 8, telescopic section 9, linkage section B10 are all that cross section is foursquare pipeline; The maximum heating capacity of well heater 14 is 100kW; The height of hydrostatic column 16 is 3.5 meters, and diameter is 2 meters, and hydrostatic column 16 is with independent thermal resistance heating arrangement, and hydrostatic column 16 is also connected with sewer with tap water.
The Pitot tube 21 of measurement gas flow velocity is installed in pressure-stabilizing section 2; In near linkage section A4 well heater 14, temperature sensor 22 is installed; The pressure transducer 25 of measuring the temperature sensor 23 of cold and hot gas temperature and copper wire resistance net 24, measurement gas pressure is installed in test section 7; The thermopair of measuring the hot and cold water temperature difference is installed in the water-in flange 26 of refrigeratory model and water-output flange 27, temperature sensor 28 is installed in the inlet and outlet pipe of refrigeratory model.The temperature sensor of installing on proving installation is the PT100 temperature sensor of KYW2-430 series, and pressure transducer is the micro-pressure sensor of JD268 series.
As shown in Figure 1 and Figure 2, centrifugal blower rotation produces the pressure that makes gas flow in return circuit wind tunnel, after gas flow heater via, temperature raises, after the guide vane that negotiates the corner, damping section, turbulent flow section, flow to test section, hot blast with refrigeratory model in water carry out becoming cold wind after heat interchange, after flow through linkage section B, contraction section, pressure-stabilizing section, diffuser, get back to centrifugal blower form circulation.The heat that well heater provides is taken away by the water in hydrostatic column after by gas and hydrothermal exchange.Under certain wind speed, water speed, by regulating the heating power of well heater and the Inlet and outlet water flow of hydrostatic column, the heat energy water that is just in time cooled is taken away, reach thermal equilibrium.
Monitor that display screen, TT&C system, data communication module, anemoscope etc. are all arranged in control desk, by keyboard, mouse etc., TT&C system is sent to instruction, adjust respectively different heating powers, different wind speed is simulated the running environment of refrigeratory in motor from different water speed.Numerical value and other relevant informations of device operating condition, each measurand are shown at control desk.In test, keep the stability of gas flow rate and water speed, observe gas temperature and pressure over time, when the variation of measurand in 20 minutes be less than ± 1% time, record the numerical value of operating condition of test and each measurand, this working condition measurement is complete, readjusts operating condition and tests.By processing the numerical value of each measurand under different wind speed and water speed state, can determine the relation curve between coefficient of heat transfer, air resistance coefficient and the wind speed of testing refrigeratory, realize the research to heat dispersion and windage performance.
Claims (3)
1. a gas cooler performance testing device, is characterized in that: this device is by contraction section (1), pressure-stabilizing section (2), diffuser (3), linkage section A (4), damping section (5), turbulent flow section (6), test section (7), test section (8), telescopic section (9), linkage section B (10), guide vane (11), centrifugal blower (12), frequency converter A (13), well heater (14), three-phase solid relay (15), hydrostatic column (16), water pump (17), frequency converter B (18), turbo flow meter (19), control desk (20) composition, wherein contraction section (1), pressure-stabilizing section (2), diffuser (3), linkage section A (4), damping section (5), turbulent flow section (6), test section (7), test section (8), telescopic section (9), linkage section B (10) is successively by the flange formation return circuit wind tunnel that is linked in sequence, corner at linkage section A (4) and linkage section B (10) is provided with guide vane (11), and the refrigeratory model that needs test is installed in test section (8), centrifugal blower (12) is connected to form air feed system with frequency converter A (13) by electric wire, centrifugal blower (12) is arranged on the corner of linkage section A (4), and the fan blade of centrifugal blower (12) is positioned at the pipeline of linkage section A (4) corner, well heater (14) is connected to form heating system with controlled three-phase solid relay (15) by electric wire, and well heater (14) is arranged on the top of linkage section A (4) gas in pipelines is heated, water pump (17) is connected by electric wire with frequency converter B (18), the water-in flange (26) of hydrostatic column (16), water pump (17) and refrigeratory model is connected by pipeline successively, the water-output flange (27) of refrigeratory model is connected to form water passage circulation system with hydrostatic column (16) by pipeline, and turbo flow meter (19) is arranged in the connecting line of water pump (17) and refrigeratory model water-in flange (26).
2. a kind of gas cooler performance testing device according to claim 1, it is characterized in that: contraction section (1) and diffuser (3) are truncated cone-shaped pipeline, pressure-stabilizing section (2) is that diameter is the cylindrical pipe of 200 millimeters, and linkage section A (4), damping section (5), turbulent flow section (6), test section (7), test section (8), telescopic section (9), linkage section B (10) are all that cross section is foursquare pipeline; The maximum heating capacity of well heater (14) is 100kW; The height of hydrostatic column (16) is 3.5 meters, and diameter is 2 meters, and hydrostatic column (16) is with independent thermal resistance heating arrangement, and hydrostatic column (16) is also connected with sewer with tap water.
3. a kind of gas cooler performance testing device according to claim 1, is characterized in that: the Pitot tube (21) that measurement gas flow velocity is installed in pressure-stabilizing section (2); In near linkage section A (4) well heater (14), temperature sensor (22) is installed; The pressure transducer (25) of measuring the temperature sensor (23) of cold and hot gas temperature and copper wire resistance net (24), measurement gas pressure is installed in test section (7); The thermopair of measuring the hot and cold water temperature difference is installed in the water-in flange (26) of refrigeratory model and water-output flange (27), temperature sensor (28) is installed in the inlet and outlet pipe of refrigeratory model, the temperature sensor of installing on proving installation is the PT100 temperature sensor of KYW2-430 series, and pressure transducer is the micro-pressure sensor of JD268 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359785.7U CN204027800U (en) | 2014-07-01 | 2014-07-01 | gas cooler performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359785.7U CN204027800U (en) | 2014-07-01 | 2014-07-01 | gas cooler performance testing device |
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| CN204027800U true CN204027800U (en) | 2014-12-17 |
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| CN201420359785.7U Expired - Fee Related CN204027800U (en) | 2014-07-01 | 2014-07-01 | gas cooler performance testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458315A (en) * | 2014-12-26 | 2015-03-25 | 南车株洲电机有限公司 | Backpack cooler type testing device |
| CN107091855A (en) * | 2017-05-24 | 2017-08-25 | 淄博高新区成大机械设计研究所 | Air cooler unlike material cooling tube cooling effect contrast test method |
| CN107300478A (en) * | 2017-08-16 | 2017-10-27 | 国网湖南省电力公司 | A kind of test platform and its application process of SVG heat-pipe radiators dynamic characteristic |
| CN107300479A (en) * | 2017-08-16 | 2017-10-27 | 国网湖南省电力公司 | A kind of test platform and its application process of SVG heat-pipe radiators characteristic |
| CN109297670A (en) * | 2018-11-30 | 2019-02-01 | 济南万象轩智能科技有限公司 | A kind of pneumatic equipment bladess performance test laboratory experiment simulator |
| CN109655286A (en) * | 2019-02-20 | 2019-04-19 | 南通盛立德金属材料科技有限公司 | Car coolers cooling rate detection device |
| CN109991027A (en) * | 2017-12-29 | 2019-07-09 | 百林机电科技（苏州）有限公司 | A kind of low-temperature air-cooling heat exchanger performance Detecting data |
-
2014
- 2014-07-01 CN CN201420359785.7U patent/CN204027800U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458315A (en) * | 2014-12-26 | 2015-03-25 | 南车株洲电机有限公司 | Backpack cooler type testing device |
| CN107091855A (en) * | 2017-05-24 | 2017-08-25 | 淄博高新区成大机械设计研究所 | Air cooler unlike material cooling tube cooling effect contrast test method |
| CN107300478A (en) * | 2017-08-16 | 2017-10-27 | 国网湖南省电力公司 | A kind of test platform and its application process of SVG heat-pipe radiators dynamic characteristic |
| CN107300479A (en) * | 2017-08-16 | 2017-10-27 | 国网湖南省电力公司 | A kind of test platform and its application process of SVG heat-pipe radiators characteristic |
| CN107300478B (en) * | 2017-08-16 | 2023-11-14 | 国网湖南省电力公司 | Test platform for dynamic characteristics of SVG heat pipe radiator and application method thereof |
| CN107300479B (en) * | 2017-08-16 | 2023-11-14 | 国网湖南省电力公司 | Test platform for SVG heat pipe radiator characteristics and application method thereof |
| CN109991027A (en) * | 2017-12-29 | 2019-07-09 | 百林机电科技（苏州）有限公司 | A kind of low-temperature air-cooling heat exchanger performance Detecting data |
| CN109297670A (en) * | 2018-11-30 | 2019-02-01 | 济南万象轩智能科技有限公司 | A kind of pneumatic equipment bladess performance test laboratory experiment simulator |
| CN109655286A (en) * | 2019-02-20 | 2019-04-19 | 南通盛立德金属材料科技有限公司 | Car coolers cooling rate detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20141217 Termination date: 20200701 |