CN204422224U - " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation - Google Patents
" mobile integral type " gas kitchen ranges all-round property testing experiment proving installation Download PDFInfo
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- CN204422224U CN204422224U CN201420669387.5U CN201420669387U CN204422224U CN 204422224 U CN204422224 U CN 204422224U CN 201420669387 U CN201420669387 U CN 201420669387U CN 204422224 U CN204422224 U CN 204422224U
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Abstract
A kind of " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation, comprises unstripped gas feedway, bye-pass gas flow metering device, pipeline valve, combination gas female pipe, pressure display instrument, electric switching valve, gas filter, Safety relief valve, gas flow meter, far controls gas pressure regulator, governor, burner early gate; Described burner early gate outlet is connected with test gas utensil, test gas utensil is provided with test pot, the pot cover of test pot is equipped with and surveys water temperature thermoelectricity occasionally mercury thermometer and stirrer, the temperature signal surveying water temperature thermopair transfers to main control system by data/signal transmssion line.This device is from various distribution test source of the gas end to the whole process efficiency of test gas kitchen ranges end and combustion characteristics detection system, item-dividing test and inspection are carried out, to assess and to quantize thermal technology, the security performance of gas kitchen ranges to the impermeability, thermal load, combustion conditions, the thermal efficiency, fume emission index, temperature rise etc. of gas kitchen ranges.
Description
Technical field:
The utility model belongs to a kind of experimental apparatus for testing measuring gas kitchen ranges combination property, particularly a kind of " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation.
Background technology:
Gas kitchen ranges performance test, mainly comprises the projects such as impermeability, thermal load, combustion conditions, temperature rise, heat shock resistance, antigravity impact, safety feature, usability, electric property, durability.Household gas utensils, mainly contain four with combustion gas makings and the key project index of burning relevant: 1. energy efficiency indexes, as thermal load and the thermal efficiency; 2. combustion conditions, as de-fire, tempering and CO exceed standard; 3. fume emission index, as CO and NOx concentration; 4. security, as impermeability, safety feature etc.This core project that to be us will test when R&D and production, sizing detect and other detect.
For above-mentioned crucial test item, Normal practice will meet four pacing itemss: 1. have suitable benchmark source of the gas and limit gas, the special gas distribution station of general construction and conveying dispensing pipeline; 2. test board position or experimental testing station is had, general construction Special experimental room and test board position; 3. there are the flow of record and measurement combustion gas or water, pressure, the isoparametric instrument and meter of temperature or device, generally complete with craft or computer-aided; 4. there is the device analyzed and arrange experimental data, generally complete with craft or computer-aided.
Current state-of-the-art is, the efficiency of existing part household gas utensils or combination property test desk, the partial function of in above-mentioned four pacing itemss 2., 3. or the 2., 3., 4. in item can be realized, as burner thermal load, the thermal efficiency in energy efficiency indexes, and fume emission index.But due to makings restriction, the combustion conditions directly measuring gas utensil cannot be realized.Generally need a certain amount of distribution pipe system of Install and configure, by special or indoor gazogene, prepare different limit gases, or the bottled limit gas of the one-tenth of purchasing price costliness, carry out a series of independent experiment, test such as de-fire, tempering and CO exceed standard.But not yet have and realize integrating multi-functional gas utensil performance test scheme or the system and device such as the preparation of test gas, component of natural gas adjustment, gas metering, procedure parameter (as temperature/pressure) observing and controlling, air-tight test, efficiency detection, combustion conditions test, flue gas analysis, security performance, Row control.The utility model is intended for solving as above technical barrier, and releases a set of novel gas kitchen ranges all-round property testing test method and test macro.
I proposed ZL 2,009 1 0068118.7 " method for determining combustion adaptive domain of gas appliance " patent and ZL 2,009 2 0095801.5 " a kind of device determining combustion adaptive domain of gas appliance or combustion conditions " patent in 2009, ZL 2,010 2 0206874.X " determining the experimental apparatus for testing of gas utensil combustion characteristics " and 2,010 1 0185656.7 " determining the testing experimental system of gas utensil combustion characteristics " patent is proposed in 2010, ZL 2,011 2 0219538.3 " a kind of experimental system measuring gas utensil makings adaptive domain or combustion conditions " and 2,011 1 0173507.3 " a kind of method and used test device measuring gas utensil makings adaptive domain or combustion conditions " is proposed in 2011, be intended to explore, set up and improve the method for testing of gas utensil makings adaptability and combustion conditions, develop a kind of gas utensil proving installation, realize the combustion characteristics to gas utensil, the test of makings adaptability and operating condition and quantitatively evaluating.
Emphasis with regard to above-mentioned 6 patents is analyzed, specifically:
(1) patent ZL 200910068118.7 " method for determining combustion adaptive domain of gas appliance "
Which disclose a kind of with the different distribution test gas of combustion gas, determine that gas utensil is when normal combustion, burner equipment adapts to the method for the scope (adaptive domain of gas utensil) of gas component change, the method adopts multiple pure gas component or multiple many gas compositions to make the different tests gas of all kinds of combustion gas, same gas utensil carries out combustion conditions test, according to the yellow flame of appearance or rough burning, tempering, the different Gas Components ratios corresponding to limit combustion phenomena such as de-fire, carry out corresponding distribution adjustment of formula, make many groups respectively and test gas with the distribution occurred corresponding to above-mentioned limiting condition, then the combustibility index of corresponding distribution reference gas and test gas when above-mentioned limiting condition is calculated, as Wobbe index, combustion potential and calorific value, C3 and above component concentration, relative density, fuel gas buring speed, yellow flame index, knot carbon index, choose certain two or three combustibility indexes of representative reference gas and test gas, set up two dimension or three-dimensional system of coordinate, the closed region (body) that the curve (face) that these combustibility index respective coordinates points selected are linked to be surrounds, just constitutes the adaptive domain of gas utensil smooth combustion.
(2) patent ZL 200920095801.5 " a kind of device determining combustion adaptive domain of gas appliance or combustion conditions "
Which disclose a kind of device realizing combustion adaptive domain of gas appliance or combustion conditions and determine, multiple distribution unstripped gas can be carried out mixture with the arbitrary volume set or calculate or mass ratio by this device, controlled flow or the quality of each road unstripped gas by computing machine automatic or manual, realizing multichannel unstrpped gas can simultaneously or successively dynamical output; Also other several feed gas composition can fix, progressively change a certain component, reach the object preparing different limit gas, continuously, automatically can change certain raw material source of the gas component; Complete the technological processes such as distribution.Plurality of raw materials gas forms the test gas of various combustion conditions after exporting mixing.It is characterized in that: form distribution unstripped gas by multichannel pure gas component or the many gas compositions of multichannel and carry bye-pass, difference setting pressure regulating device, pressure measurement device, bye-pass by-pass valve control successively on each bye-pass, each unstrpped gas bye-pass, after pressure adjustment, metering, forms unstripped gas aggregation pipeline; This unstripped gas aggregation pipeline is communicated with the input port of total mixed gas delivery pipeline, and be connected with combination gas storage device in the middle of total mixed gas pipeline, the outlet ends of combination gas storage device is communicated with gas utensil to be measured.
(3) patent ZL 201020206874.X " determining the experimental apparatus for testing of gas utensil combustion characteristics " and 201010185656.7 " determining the testing experimental system of gas utensil combustion characteristics "
Which disclose a kind of experimental apparatus for testing or the system of determining gas utensil combustion pattern, this device or system are by dynamic, high-precision automated gas divider and combustion characteristics testing and control software systems, random, according to the test gas of given requirements or program, preparation suitable ingredients or limit gas; The otherwise limit combustion conditions of burner is obtained by combustion testing control system, each road combustion gas corresponding to each limiting condition recorded or the concrete component of unstripped gas, calculate the burning performance parameter of air mixture, form various combustion pattern and reference gas point position according to corresponding burning performance parameter, describe the burning performance of gas utensil with this.It is characterized in that: be made up of unstrpped gas feeding mechanism I, the bye-pass measurement of gas flow and control device II, pipeline cutting-off III, bleeding device IV, air mixture pipeline stable-pressure device V, pressure measurement and feedback assembly VI, fire retardant device VII, terminal gas utensil burner and proving installation VIII, flue gas analysis and data processing equipment Ⅸ, DTU (Data Transfer unit) Ⅹ and industrial computer Ⅺ.
(4) patent ZL 201120219538.3 " a kind of experimental system measuring gas utensil makings adaptive domain or combustion conditions "
Which disclose and a kind ofly measure the makings adaptive domain of gas utensil or the experimental system of burner combustion conditions, this system is by unstripped gas feeding mechanism, bye-pass gas flow metering device, pipeline valve, combination gas mother pipe, initial pressure display device, gas mixing pipe road emergency shutoff device, gas filter, safe diffusion device, control initial pressure regulating device far away, pressure-display device before gas utensil burner, burner early gate, connecting hose, test gas utensil, smoke sampling device, flue gas analyzer, D/A converter module, main control system, data/signal transmssion line is formed.The utility model has the advantages that: 1. can complete combustion gas test distribution accurately.2. the quantification test of gas utensil makings adaptive domain can be carried out.3. the random test of gas utensil combustion conditions can be carried out.4. the random adjustment of operating pressure and flow can be carried out.
(5) patent 201110173507.3 " a kind of method and used test device measuring gas utensil makings adaptive domain or combustion conditions "
Which disclose and a kind ofly measure the makings adaptive domain of gas utensil or the method for burner combustion conditions, mainly adjust the operating condition of gas utensil, make to burn under limiting condition respectively, the de-fire of general test respectively (from flame), tempering, CO exceed standard or the combustion conditions such as Huang Yan, carry out the analysis of corresponding boundary Gas Components during a series of limiting condition state point, calculate corresponding burning performance parameter, draw the combustion pattern of each gas utensil; Or according to requirement of experiment, under different operating condition, measure combustion conditions and the performance parameter of gas utensil.The proving installation that the method uses, is made up of pressure-display device, burner early gate, connecting hose, test gas utensil, smoke sampling device, flue gas analyzer, D/A converter module, main control system, data/signal transmssion line before unstripped gas feeding mechanism, bye-pass gas flow metering device, pipeline valve, the female pipe of combination gas, initial pressure display device, gas mixing pipe road emergency shutoff device, gas filter, safe diffusion device, control initial pressure regulating device far away, gas utensil burner.Its software systems are gas utensil makings adaptive domain or combustion conditions test procedure control software design system.This patent establishes test gas utensil makings adaptive domain or the technical method of combustion conditions and implementation route, for gas utensil experiment test industry provides method of testing and technology platform, and makings adaptive domain when can measure different burner thermal load and combustion conditions.
Comprehensively each patent aforementioned, respectively has its relative merits, mainly:
(1) patent ZL 200910068118.7 " method for determining combustion adaptive domain of gas appliance " proposes a kind of method determining combustion adaptive domain of gas appliance, essentially disclose by preparing the limit gases such as de-fire, tempering and CO and Huang Yan, select the combustibility index of representative reference gas and test gas, set up two dimension or three-dimensional system of coordinate, form combustion adaptive domain of gas appliance.
(2) patent ZL 200920095801.5 " a kind of device determining combustion adaptive domain of gas appliance or combustion conditions ", essentially disclose the reference gas by preparing gas utensil and limit gas, the test gas of various combustion conditions is formed, to test and to determine that gas utensil is to the adaptive device of makings after mixing.Mainly propose the device determining gas utensil makings adaptive domain and combustion conditions, practical operation employs multiple stage gas regulator and mixing gas tank.
(3) how fast and accurately patent ZL 201020206874.X " determining the experimental apparatus for testing of gas utensil combustion characteristics " and 201010185656.7 " determining the testing experimental system of gas utensil combustion characteristics " mainly propose test preparation gas, are realized by which kind of device or system.Disclose feasible method and signal wiring flow process in the patent, mainly each distribution unstripped gas bye-pass carries out separately blending transportation after volume or mass metrology, according to different operating pressure, total gas mixing pipe road is carried out the flow model of parallel branches conveying.Simple and convenient on this device technique, principle is feasible, but in actual test operation, because the multiple branch circuit parallel connection need carried out under different operating pressure condition switches and state change, cause software control and hardware installation numerous and diverse.
(4) patent ZL 201120219538.3 " a kind of experimental system measuring gas utensil makings adaptive domain or combustion conditions " provides a kind of experimental system realizing measuring gas utensil makings adaptive domain or combustion conditions.This experimental system, by the experiment test control software design optimized, under set burner thermal load flow, based on dynamic in system, high-precision multiple branch circuit automated gas divider, prepares burner burning test gas or the limit gas of suitable component of natural gas; By the gaseous tension regulating device on combination gas house steward newly developed, export suitable operating pressure, to obtain the different combustion conditions of burner.Be intended to by software control and hardware adjustment, realize the makings adaptive domain or the combustion conditions that measure gas utensil.
(5) patent 201110173507.3 " a kind of method and used test device measuring gas utensil makings adaptive domain or combustion conditions " provide a kind of newly, optimize method route, experimental procedure is redesigned, flow process science can be reached, the test duration is short, front and back test sequence is connected reasonable, save the object of test gas.Makings adaptive domain or the combustion conditions of test gas utensil is realized with this device.
Based on above analysis, each patent is in the past intended to the distribution by fast accurate, according to the flow process designed and route, realizes the makings adaptive domain of test gas utensil, the mainly combustion conditions index of burner, as de-fire, tempering and CO exceed standard or the working condition measurement such as the yellow flame limit.But as method of testing and the flow process of the key projects such as impermeability, thermal technology, energy efficiency indexes (mainly burner thermal load, the thermal efficiency), security performance, fume emission index, do not relate in the method and apparatus mentioned by above-mentioned any patent or realize.
Summary of the invention:
The purpose of this utility model is to provide a kind of " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation, this device can provide a kind of integral test system of removable, skid-mounted type, whole process efficiency from various distribution test source of the gas end to test gas kitchen ranges end and combustion characteristics detection system are provided, item-dividing test and inspection are carried out, to assess and to quantize thermal technology, the security performance of gas kitchen ranges to the impermeability, thermal load, combustion conditions, the thermal efficiency, fume emission index, temperature rise etc. of gas kitchen ranges.Meanwhile, the utility model is optimized design to experimental procedure, can reach that test event is many, the test duration is short, front and back test sequence is connected rationally, flow process science, save the object of test gas.
This method of testing and experimental provision are by the experiment test control subsystem of the hardware subsystem set up and establishment, to the gas kitchen ranges of a certain rated heat input, rated heat load, based on real-time in system, high-precision multiple branch circuit automated gas divider, prepare burner burning test gas or the limit gas of suitable component of natural gas; By the gaseous tension regulating device on combination gas house steward, recall suitable test run pressure, gas utensil is detected according to the step proposed and tests.
The technical solution of the utility model is: a kind of " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation, comprise the distribution unstripped gas bye-pass be made up of multichannel pure gas or multichannel multicomponent gas, converge after each bye-pass is provided with unstripped gas feedway, bye-pass gas flow metering device and pipeline valve respectively successively and be connected to the female pipe of unstripped gas mixing, this combination gas mother pipe is communicated with the input port on total mixed letter shoot road; Total mixed letter shoot road is provided with pressure display instrument, electric switching valve, gas filter, Safety relief valve, gas flow meter successively, far controls gas pressure regulator, governor, burner early gate; Described burner early gate outlet is connected with test gas utensil by connecting hose; Wherein: gas flow meter, pressure display instrument, far control gas pressure regulator, governor, burner early gate is all connected with the data conversion module of main control system by data/signal transmssion line, realize the voltage such as gas flow, pressure or current signal and steering order two-way/one-way transmission; It is characterized in that: test gas utensil is provided with test pot, the pot cover top of test pot is equipped with and is surveyed water temperature thermoelectricity occasionally mercury thermometer and stirrer, and the temperature signal surveying water temperature thermopair transfers to main control system by data/signal transmssion line.
Described stirrer top can be provided with far controls electrical control actuator, and the output port of this topworks is connected with main control system.
The bottom of described test pot is provided with smoke sampling device circle, and this smoke sampling device circle is connected with flue gas analyzer, and the output terminal of this analyser is connected with the serial ports of main frame by data line.
The hardware system of the utility model by foundation and the experiment test software systems system of establishment, under the gas flow that given kitchen range thermal load is corresponding, based on test gas preparation subsystem, prepare suitable component of natural gas, the test gas of pressure or limit gas, gas utensil detected and tests, completing the test processs such as relevant thermal technology, safety.
The utility model has following advantage and good effect:
1, experimental technique and the technology path of test gas utensil combination property is established, for gas utensil experiment test industry provides full automatic test platform.
2, the Comprehensive Experiment test macro set up with " mobile integral type " of this patent, flexible structure, it is convenient to assemble, and floor area is little.
3, this patent system integrate test gas preparation, component of natural gas adjustment, gas metering, procedure parameter (as warm/press) observing and controlling, air-tight test, efficiency detection, combustion conditions test, flue gas analysis, security performance, Row control etc. are multi-functional, powerful, modular design, is beneficial to maintenance and subsequent upgrade.
3, this device is that enterprise is small-sized, high-qualityization lab construction provides technological means and pick-up unit, eliminates the auxiliary construction running cost of expensive gas distribution station, saves substantial contribution.
Accompanying drawing illustrates:
Fig. 1 is the system flowchart of the utility model device.
Wherein: 1-1 to 1-12 is pipe valve; 2-1 to 2-5 is flow measurement device; 3-unstripped gas conveying bye-pass; 4-combination gas mother pipe; 5-1 to 5-2 is pressure-display device; 6-total gas mixing pipe road quick action emergency valve; 7-filtrator; 8-Safety relief valve; 9-flowmeter; 10-is mixed letter shoot road always; 11-far controls initial pressure regulating device; 12-burner early gate; 13-connection rubber tube; 14-test gas utensil; 15-smoke sampling device; 16-flue gas analyzer; 17-data conversion module; 18-main control system; 19-data/signal transmssion line; 20-test pot; 21-surveys water temperature thermopair (mercury thermometer); 22-stirrer (can be with and far control adjustment).
Embodiment:
As shown in Figure 1: the proving installation that said method uses, hardware system and software systems two parts are comprised.Its hardware system is by unstripped gas feeding mechanism, bye-pass gas flow metering device, pipeline valve, combination gas mother pipe, initial pressure display device, gas mixing pipe road emergency shutoff device, gas filter, safe diffusion device, control initial pressure regulating device far away, pressure-display device before gas utensil burner, burner early gate, connecting hose, test gas utensil, smoke sampling device, flue gas analyzer, data conversion module, main control system, data/signal transmssion line, test pot, survey water temperature thermopair (mercury thermometer), stirrer (can be with and far control adjustment) is formed.Its software systems are gas kitchen ranges all-round property testing experimental control Software system.
Wherein, form distribution unstripped gas bye-pass by multichannel pure gas or multichannel multicomponent gas, after each bye-pass connects unstripped gas feedway, bye-pass gas flow metering device, pipeline valve respectively successively, be connected to the female pipe of same unstripped gas mixing; The female pipe of this unstripped gas mixing is communicated with the input port on total mixed letter shoot road, total mixed letter shoot road is connected with pressure-display device, burner early gate before initial pressure display device, mixed gas emergency shutoff device, gas filter, safe diffusion device, control initial pressure regulating device far away, burner in turn, valve export is connected with gas utensil by flexible pipe.Pressure-display device before bye-pass gas flow metering device wherein, initial pressure display device, control initial pressure regulating device far away, burner, all have data/signal transmssion line to be connected with the D/A converter module of main control system, realize the voltage such as gas flow, pressure or current signal and steering order two-way/one-way transmission; Flue gas analyzer is connected with the serial ports of main frame by data line.Mixed gas emergency shutoff device is connected with main control system.
Above-mentioned each bye-pass gas, after flow (volume or quality) metering, pressure regulation, is connected with gas utensil burner inlet tube joint by connecting tube.Gas utensil burner top is connected with smoke sampling device and test pot, samples, analyzes and data transmission, stir the water temperature in test pot and measure combustion product gases, and by water temperature real-time Transmission; The combustion conditions of gas utensil is by flame monitor or manually monitor.
The gas kitchen ranges all-round property testing experimental control Software system of above-mentioned experimental provision, in main control system, compile according to certain operation rule, can realize the test gas preparation needed for gas utensil test, component of natural gas adjustment, gas metering, procedure parameter (as warm/press) observing and controlling, air-tight test, efficiency detection, combustion conditions test, flue gas analysis, security performance, real time control of work procedure, data processing, preservation and printing function integrated software system.By gas flow and the valve opening of pipeline in programmed control combustion gas test gas preparation subsystem, obtain suitable gas flow; Control the initial pressure regulating device on mixed gas main pipe rail by software systems, realize exporting constant or continually varying operating pressure; And the combustion gas data such as flow, pressure and temperature received in testing experimental system, and CO, O in flue gas
2, CO
2, the data such as NOx content, with the water temperature Real-time Monitoring Data in burner test pot, combustion conditions signal; Realize the functions such as combustion flow process control, data receiver and process, operating condition analysis, trial curve are drawn, result of calculation stores, printing.
Above-mentioned experimental provision can realize:
1. move, the confession/distribution of skid-mounted type.By small and exquisite test gas preparation subsystem flexibly, complete the preparation of test gas; The Gas Components of preparation different cities can be simulated, the reference gas of the gas utensil that accurate formulation is different or test gas.
2. gas utensil performance comprehensive testing test.Can dynamic realtime preparation burner test with various test gas or limit gas, carry out the experimental test of the various performance of gas utensil.
Claims (3)
1. one kind " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation, comprise the distribution unstripped gas bye-pass be made up of multichannel pure gas or multichannel multicomponent gas, converge after each bye-pass is provided with unstripped gas feedway, bye-pass gas flow metering device and pipeline valve respectively successively and be connected to the female pipe of unstripped gas mixing, this combination gas mother pipe is communicated with the input port on total mixed letter shoot road; Total mixed letter shoot road is provided with pressure display instrument, electric switching valve, gas filter, Safety relief valve, gas flow meter successively, far controls gas pressure regulator, governor, burner early gate; Described burner early gate outlet is connected with test gas utensil by connecting hose; Wherein: gas flow meter, pressure display instrument, far control gas pressure regulator, governor, burner early gate is all connected with the data conversion module of main control system by data/signal transmssion line, realize the voltage such as gas flow, pressure or current signal and steering order two-way/one-way transmission; It is characterized in that: test gas utensil is provided with test pot, the pot cover top of test pot is equipped with and is surveyed water temperature thermoelectricity occasionally mercury thermometer and stirrer, and the temperature signal surveying water temperature thermopair transfers to main control system by data/signal transmssion line.
2. " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation according to claim 1, is characterized in that: above-mentioned stirrer top can be provided with far controls electrical control actuator, and the output port of this topworks is connected with main control system.
3. " mobile integral type " gas kitchen ranges all-round property testing experiment proving installation according to claim 1, it is characterized in that: the bottom of above-mentioned test pot is provided with smoke sampling device circle, this smoke sampling device circle is connected with flue gas analyzer, and the output terminal of this analyser is connected with the serial ports of main frame by data line.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136508A (en) * | 2015-09-30 | 2015-12-09 | 武汉辰龙精密仪器有限公司 | DMMP vapor protective dosage test system and testing method thereof |
| CN108426727A (en) * | 2018-02-06 | 2018-08-21 | 广东省中山市质量计量监督检测所 | A kind of gas cooker thermal efficiency measurement experimental rig |
| CN109060391A (en) * | 2018-07-10 | 2018-12-21 | 重庆大学 | The vehicle-mounted integrated test system of full height above sea level region household gas apparatus |
| CN111407154A (en) * | 2019-01-08 | 2020-07-14 | 宁波方太厨具有限公司 | Inner cover for Chinese food cooking stove test |
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2014
- 2014-11-11 CN CN201420669387.5U patent/CN204422224U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136508A (en) * | 2015-09-30 | 2015-12-09 | 武汉辰龙精密仪器有限公司 | DMMP vapor protective dosage test system and testing method thereof |
| CN105136508B (en) * | 2015-09-30 | 2018-09-14 | 武汉辰龙精密仪器有限公司 | DMMP vapor protection dosage tests system and its test method |
| CN108426727A (en) * | 2018-02-06 | 2018-08-21 | 广东省中山市质量计量监督检测所 | A kind of gas cooker thermal efficiency measurement experimental rig |
| CN108426727B (en) * | 2018-02-06 | 2024-06-04 | 广东省中山市质量计量监督检测所 | Gas kitchen ranges thermal efficiency measurement test device |
| CN109060391A (en) * | 2018-07-10 | 2018-12-21 | 重庆大学 | The vehicle-mounted integrated test system of full height above sea level region household gas apparatus |
| CN111407154A (en) * | 2019-01-08 | 2020-07-14 | 宁波方太厨具有限公司 | Inner cover for Chinese food cooking stove test |
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