CN102262000B - Determine the testing experimental system of gas utensil combustion characteristics - Google Patents
Determine the testing experimental system of gas utensil combustion characteristics Download PDFInfo
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Abstract
Determine a testing experimental system for gas utensil combustion characteristics, 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.This system is by dynamic, high-precision automated gas divider and combustion characteristics test procedure control software design system, 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.The burning performance of gas utensil is described with this.
Description
Technical field:
The invention belongs to gas field, relate to a kind of testing experimental system determining gas utensil combustion pattern.
Background technology:
(1) combustion characteristics of gas utensil and family curve
At present, gas source of the gas adopts rock gas (NG), liquefied petroleum gas (LPG) (LPG) or artificial coal gas mostly.Accounting for most domestic gas tools in cities and towns is atmospheric gas apparatus.Each gas utensil has the ability of certain adaptation Gas Components change.
Any burner is all design by certain gas component.When gas component changes and causes its calorific value, density and combustion characteristics to change, the combustion conditions such as thermal load, primary air ratio, combustion stability, flame structure, CO content in smoke of burner will change.Characterizing burner combustion stability and the adaptive major parameter of makings is that different combustion gas is burnt the combustion pattern of gained on this burner, to comprise in flame (de-fire), tempering, Huang Yan and products of combustion four curves such as CO limit content.
During exploitation gas utensil, first to determine the reference gas using certain class combustion gas as this gas utensil, according to the design of this reference gas, sizing or production.Also need carry out examination and adjustment according to the requirement (comprising pressure) of combustion gas reference gas and boundary test gas to it before dispatching from the factory, ensure that gas utensil normally works.Reference gas when if the combustion gas of city supply is the design of this gas utensil, gas utensil duty is best.
Cities and towns domestic gas appliance majority is atmospheric gas tool.Each burner has certain adaptive faculty, for quantizing its adaptive faculty, can with burner adapt to gas component change scope represent.The scope adapting to gas component change is called burner adaptive domain.The scope of adaptive domain is wider, represents that the adaptive faculty of burner is stronger.The important indicator that measurement gas utensil normally works CO in flame, tempering, Huang Yan, flue gas does not occur do not exceed standard.The exchangeability affecting these phenomenons is Wobbe index and burning rate etc.In order to determine burner adaptive domain, usually get one with Wobbe index W for ordinate, the coordinate diagram being horizontal ordinate with combustion potential CP.According to combustion pattern and the reference gas position of burner in a coordinate system, burning performance and the designing quality level of burner can be evaluated.
The index parameter of usual description burner combustion pattern can for a certain specific components in the Wobbe index of combustion gas, calorific value, relative density, flame velocity, combustion potential, yellow flame index, knot carbon index, combustion gas (as methane or butane and more than) content etc., according to the combustibility index corresponding to combustion gas when there is the operating modes such as rough burning, tempering, de-fire, choose gas utensil representational certain two or three combustibility indexes, set up two dimension or three-dimensional system of coordinate; The closed region that the Curves that corresponding measurement condition coordinate points is formed surrounds, just forms the smooth combustion adaptive domain of gas utensil.
Gas utensil manufactures enterprise and supplier, the gas utensil of often kind of pattern of producing, especially newly-designed gas utensil, when carrying out type inspection, performance test, determining the combustion conditions of gas utensil, the adaptive domain corresponding to combustion pattern measuring this burner can be passed through: determine its adaptive domain, its combustion characteristics of precise quantification; The scope of application of gas utensil can also be expanded, improve the accuracy that gas utensil is suitable for Gas Components change; Quantitatively evaluating is carried out to the stability of gas utensil, combustion gas adaptability.
(2) current conventional gas distributing system
According to interchangeability of gas principle, use gas distributing system to make the substitutable gas resources with the user area combustibility index such as the identical Wobbe index of combustion gas and combustion potential, can be used for the detection of gas appliance.Gas distributing system is the necessary equipment of gas appliance manufacturing enterprise and inspection body.
Conventional air distributing method, is all inject various single distribution respectively to a certain fixed container (high pressure or low pressure), thus is mixed into satisfactory test gas, belongs to interval distribution.When service test gas continuous in need of production, continuous gas distributing system should be considered.When there being two containers, also can test gas without interruption, i.e. the first container air feed, second container distribution.After the first container is used up, switch to second container air feed.At this moment require that gas distributing system separates with air feed (test gas) system, form interval distribution-air supply system continuously.
Conventional gas distributing system comprises following content:
1. the manual gas distributing system of three components
The manual gas distributing system of three components is relatively simple, and be generally made up of gas meter, gas-holder, fuel gas pipeline, the volume of gas-holder should meet examination requirements.Raw material source of the gas is hydrogen, methane (or propane or butane), nitrogen.The ratio calculating raw material source of the gas is needed before distribution.Then according to predetermined distribution capacity, the requirement of three kinds of raw material sources of the gas is calculated.Input successively in gas-holder according to the requirement of three kinds of raw material sources of the gas during distribution, placement a period of time can use.
2. three components continuous pressure gas distributing system
Three components continuous low pressure distribution equipment is generally made up of switch board, distributing cabinet, gas-holder etc.
Raw material source of the gas is generally hydrogen, methane (or propane or butane), nitrogen.Air distributing device controls the ratio of raw material source of the gas by pneumatic valve, pressure transducer, realizes automatic distributing.Raw material source of the gas enters in gas-holder after mixing in distribution tank and stores, and gas-holder is equipped with travel switch assembly, by the continuous distribution of the control realization of travel switch assembly.
3. three components continuous flow gas distributing system
Three components continuous flow gas distributing system, is generally made up of distribution steel cylinder, mixed gas unit, valve sets, gas-holder, control device etc.By gazogene by after the unstripped gas of three components in proportion mixture, flow in the latter linked gas-holder of system.One or more gas-holder can be connected after general a set of gas distributing system, according to production gas plan, by the test gas of preparation, by switch valve group, flow in each group of gas-holder.And patrol and examine the combustion gas volume in the latter linked each group of gas-holder of gazogene by control device, when in certain tank, combustion gas, lower than time a certain amount of, opens gazogene automatically, carry out tonifying Qi.
Conventional gas distributing system, no matter be interval gas distributing system or continuous gas distributing system, general employing three kinds of unstripped gass, the distribution carrying out three components calculates and controls.Although simple to operate, convert convenient, bulky, distribution tank or gas-holder are required devices.The test gas of preparation can not use immediately, must carry out static placement, makes after gas fully mixes in tank, could carry use.
Summary of the invention:
The object of the present invention is to provide a kind of experimental system realizing measuring gas utensil combustion characteristics, this system is 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.
As above conceive, technical scheme of the present invention is: a kind of testing experimental system determining gas utensil combustion characteristics, 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;
Wherein, unstrpped gas feeding mechanism I, the bye-pass measurement of gas flow are connected with feedback assembly VI, terminal gas utensil burner and proving installation VIII with feedback assembly VI, air mixture pipeline stable-pressure device V, fire retardant device VII, pressure measurement successively with control device II, pipeline cutting-off III, bleeding device IV, pressure measurement; The output terminal of pressure measurement and feedback assembly VI, terminal gas utensil burner and proving installation VIII and flue gas analysis, data processing equipment Ⅸ is connected with the input end of DTU (Data Transfer unit) Ⅹ and industrial computer Ⅺ; The bye-pass measurement of gas flow and control device II are bi-directionally connected with DTU (Data Transfer unit) Ⅹ and industrial computer Ⅺ.
Above-mentioned raw materials gas supply device I is the distribution unstripped gas conveying bye-pass that the many gas compositions of multichannel pure gas component or multichannel are formed, and on each bye-pass, setting pressure regulates and measuring apparatus, by-pass valve control successively respectively.
The above-mentioned bye-pass measurement of gas flow and control device II measure form with the mass flow controller of valve dynamic control function or laminar-flow type flowmeter, data line, DTU (Data Transfer unit) by having high-precision flow concurrently; Industrial computer is connected with mass flow controller or laminar-flow type flowmeter by A/D and D/A conversion equipment, data line, realizes the transmitted in both directions of data-signal and steering order.
Above-mentioned pressure measurement and feedback assembly VI are made up of pressure unit or pressure gauge (or tensimeter) and valve, and the digital pressure signal of transmission is connected with industrial computer with DTU (Data Transfer unit) by data line.
Above-mentioned pipeline cutting-off III, bleeding device IV, fire retardant device VII form fuel gas pipeline safe-guard system; Wherein, pipeline cutting-off III operation valve that is the ball valve or solenoid valve and mixed pipe line that are installed on bye-pass; Its bleeding device IV by diffusion valve, diffuse pipeline, diffuse combustor forms, and diffuses pressure≤10kPa; Its fire retardant device VII is connected to form successively by two spark arresters and a cutting-off valve.
Above-mentioned air mixture pipeline stable-pressure device V is made up of mixed gas electromagnetic valve group or valve sets, gas pressurizer; The four road parallel voltage-stabilizing gas pipings for connecting in system: wherein three gas stabilized-pressure bye-passes in parallel are working line, and another bye-pass is bypass line.
Above-mentioned terminal gas utensil burner and proving installation VIII are made up of gas utensil burner, flame monitor and smoke sampling device; Wherein gas utensil burner is generally atmospheric burner.
Above-mentioned flue gas analysis and data processing equipment Ⅸ are transmitted by flue gas analyzer, data and form with conversion equipment.
Advantage of the present invention is: this determines the test macro of gas utensil combustion characteristics, multiple distribution unstripped gas can be carried out mixture with random volume or mass rate, by flow or the quality of procedure auto-control each road unstripped gas, realize multichannel distribution unstripped gas bye-pass simultaneously dynamically, high precision exports the distribution unstrpped gas of desired flow, Gas Components is adjustable at random, and plurality of raw materials gas forms the test gas of various combustion conditions after exporting mixing.The test gas of preparation is on burner after combustion testing, and its combustion product gases data and flame condition can carry out automatic acquisition and processing.According to the data such as flow, pressure of each road distribution unstripped gas that system during gas utensil various combustion conditions point gathers automatically, automatically can calculate this burning performance parameter corresponding to combustion conditions point, and carry out drafting and the data processing of corresponding combustion pattern.
Accompanying drawing illustrates:
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is system flowchart of the present invention.
Embodiment:
As shown in Figure 1: a kind of testing experimental system determining gas utensil combustion characteristics.Comprise hardware system and software systems two parts.Its hardware system is 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; Its software systems are gas utensil combustion characteristics test procedure control software design system.
Wherein, unstrpped gas feeding mechanism I, the bye-pass measurement of gas flow are connected with feedback assembly VI, terminal gas utensil burner and proving installation VIII with feedback assembly VI, air mixture pipeline stable-pressure device V, fire retardant device VII, pressure measurement successively with control device II, pipeline cutting-off III, bleeding device IV, pressure measurement; The output terminal of pressure measurement and feedback assembly VI, terminal gas utensil burner and proving installation VIII, flue gas analysis and data processing equipment Ⅸ is connected with the input end of DTU (Data Transfer unit) Ⅹ and industrial computer Ⅺ; The bye-pass measurement of gas flow and control device II are bi-directionally connected with DTU (Data Transfer unit) Ⅹ and industrial computer Ⅺ.
Above-mentioned raw materials gas supply device I is the distribution unstripped gas conveying bye-pass that the many gas compositions of multichannel pure gas component or multichannel are formed, and on each bye-pass, setting pressure regulates and measuring apparatus, by-pass valve control successively respectively.
The above-mentioned bye-pass measurement of gas flow and control device II measure form with the mass flow controller of valve dynamic control function or laminar-flow type flowmeter, data line, DTU (Data Transfer unit) by having high-precision flow concurrently; Industrial computer is connected with mass flow controller or laminar-flow type flowmeter by A/D and D/A conversion equipment, data line, realizes the transmitted in both directions of data-signal and steering order.
Above-mentioned pressure measurement and feedback assembly VI are made up of pressure unit or pressure gauge (or tensimeter) and valve, and the digital pressure signal of transmission is connected with industrial computer with DTU (Data Transfer unit) by data line.
Above-mentioned pipeline cutting-off III, bleeding device IV, fire retardant device VII form fuel gas pipeline safe-guard system; Wherein, pipeline cutting-off III operation valve that is the ball valve or solenoid valve and mixed pipe line that are installed on bye-pass; Its bleeding device IV by diffusion valve, diffuse pipeline, diffuse combustor forms, and diffuses pressure≤10kPa, the unnecessary air mixture in pipeline can be diffused, to ensure pressure and the stability of flow of total mixed pipe line; Its fire retardant device VII is connected to form successively by two spark arresters and a cutting-off valve, the inflammable gas tempering burning preventing pipeline combustion speed higher.
Above-mentioned air mixture pipeline stable-pressure device Ⅹ is made up of mixed gas electromagnetic valve group or valve sets, gas pressurizer; The four road parallel voltage-stabilizing gas pipings for connecting in system: wherein three gas stabilized-pressure bye-passes in parallel are working line, and another bye-pass is bypass line.
Above-mentioned terminal gas utensil burner and proving installation VIII are made up of gas utensil burner, flame monitor and smoke sampling device; Wherein gas utensil burner is generally atmospheric burner.The combustion conditions change of flame on gas utensil burner mainly monitored by its flame monitor, and changed and be converted to digital signal and import industrial computer into.Its smoke sampling device samples combustion product gases.
Above-mentioned flue gas analysis and data processing equipment Ⅸ are transmitted by flue gas analyzer, data and form with conversion equipment.
As shown in Figure 2: 0 is raw material gas cylinder or source of the gas; 1-1 ~ 1-4 is gas pressure reducer; 2-1 ~ 2-5 is volume or mass flow controller or laminar-flow type flowmeter; 3-1 ~ 3-12 is cutting ball valve; 4 is mixed gas collecting pipe; 5 is diffusion valve; 6-1 ~ 6-4 is solenoid valve or ball valve; 7 is diffuse combustor; 8-1 ~ 8-3 is pressure maintaining valve; 9-1 ~ 9-2 is tensimeter; 10-1 ~ 10-2 is spark arrester; 11 is pressure transducer; 12 is flame monitor; 13 is gas kitchen ranges; 14 is smoke sampling device; 15 is flue gas analyzer; 16 is data converter; 17 is industrial computer; 18 is liquefied petroleum gas (LPG) class unstripped gas well heater.
Each bye-pass gas, after pressure regulation, flow (quality) metering, is connected with collecting pipe by the outlet of bye-pass by-pass valve control.Collecting pipe outlet is connected with threeway, and a road connects diffusion valve and diffuse combustor, diffuses pressure and is not more than 10kPa, the unnecessary air mixture in main pipe rail diffused; Another road is connected with pressure unit or pressure gauge, and pressure unit or pressure gauge connect industrial computer, and this road connects four road parallel voltage-stabilizing gas pipings by cutting ball valve simultaneously; Gas stabilized-pressure pipeline in parallel three bye-passes are working line, install solenoid valve or ball valve and pressure maintaining valve successively; By the air mixture pressure regulation of preparation, make pressure stability between 1kPa ~ 5kPa, another bye-pass is bypass line, is provided with solenoid valve or ball valve.It is a main pipe rail that parallel voltage-stabilizing pipeline end outlet converges, and installs spark arrester, pipe rupture valve, pressure gauge, gas utensil burner respectively.Gas utensil is connected with smoke sampling device and flue gas analyzer, samples, measures and data transmission combustion product gases; The combustion conditions of gas utensil is monitored by flame monitor.
The gas utensil combustion characteristics testing and control software systems of this experimental system, comprise the transmission of flow control software, pipeline gas volume (quality) flow or pressure data and switching software, database preparation and fuel gas buring characteristic curve protract software etc.This software program is in industrial computer, compiles according to certain operation rule, can realize the software systems of the preparation of combustion characteristics gas, real time control of work procedure, database preparation, preservation and printing.By gas flow and the valve opening of each pipeline of programmed control, ensure suitable gas flow, realize the various combustion conditions of gas utensil; 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 combustion flame working condition signal of burner; Realize the integrated software control system of the functions such as combustion flow process control, data receiver and process, combustion characteristic analysis, combustion pattern are drawn, result of calculation stores, printing.
This experimental system can realize:
1. the preparation of the distribution of full constituent combustion gas or the combustion gas test gas based on principle of interchangeability; The simulation preparation of different cities Gas Components can be carried out, according to the requirements for gas quality of concrete gas, can the different city reference gas of accurate formulation, for various burner.
2. based on dynamic, the high-precision automated gas divider of exploitation, in real time (response time is within 6s) can be carried out, that distribution component is adjustable is controlled, robotization distribution that distribution precision is within 1%.
3. controlled by the real-time traffic of multipath gas pipeline, the various test gas of preparation gas utensil that can be free, random and limit gas, carry out the test of burner combustion characteristics, obtain exceeding standard and the otherwise limit feature operating mode such as Huang Yan from flame (de-fire), tempering, CO of burner, according to flow or the component of combustion gas corresponding to limiting condition, carry out the drafting of each combustion pattern figure of burner.
Control operation step is as follows:
State before starting, all raw material gas cylinders and pipeline gas Close All in test macro, the valve of respective line is in normally off.According to test macro requirement, install gas utensil, open industrial personal computer power and corresponding power supply.Afterwards,
1, gas utensil reference gas combustion conditions and combustion mode are determined
(1) when gas utensil reference gas classification is known,
1. as the pipe gas that reference gas is external, then: open reference gas pipeline valve 3-1,3-2,3-9,3-11, open solenoid valve 6-2 in mixed gas parallel pipeline, light the burner of gas utensil 13, supply gas pressure is stablized to specified oven former pressure p
0after, adjustment gas utensil operating mode, to optimum combustion regime, makes that the interior flame envelope of burner fire hole is clear, flame height is stablized.
2. carry out the collection of combustion flame data characteristics or determine and gas parameter collection (pressure, temperature, flow).According to the feedback data of stratographic analysis or reference gas pipeline flow meter 2-1, calculate the burning performance parameter of reference gas, as calorific value Hs, Wobbe index W, combustion potential CP, yellow flame index Ij etc.
3. when reference gas is not external pipeline gas, according to the combustion gas classification that gas utensil nameplate marks, according to the volume ratio of each component of test gas preset or input by hand, open each raw material gas cylinder switch and reduction valve 1-1 ~ 1-4, open the flow controller 2-2 to 2-5 of corresponding unstripped gas pipeline etc. to suitable flow aperture, the each unstripped gas meeting this reference gas component ratio is exported, forms benchmark air mixture.Complete gas utensil reference gas Operating condition adjustment above.
(2) when gas utensil reference gas classification is unknown,
1. opening control, carries out gas utensil combustion gas classification and determines.First CH is used
4bye-pass gas, lights gas utensil, and the throttle opening of adjustment burner, sees whether be best combustion operating mode.
2. if then these kitchen range are rock gas class 12T gas utensil.
3. if not optimum condition, then according to the component ratio of table 2 corresponding benchmark 0# gas in GB/T13611-2006 standard " city gas classification and fundamental characteristics ", open the flow controller of corresponding bye-pass in test macro to corresponding aperture, the reference gas carrying out rock gas class (10T, 6T, 4T, 3T) and artificial gas class (7R, 6R, 5R, 4R, 3R) 0# gas respectively measures, until determine the reference gas classification of this gas utensil.
4. after above step completes, do not detect best combustion operating mode yet, then the applicable combustion gas of this gas utensil is liquefied petroleum gas (LPG), now closes CH above
4, H
2, N
2etc. each bye-pass flow controller.
5. C is opened
3h
8, C
4h
10deng pipeline, according to the component requirements of 19Y, 20Y, 22Y benchmark 0# gas, judge the benchmark combustion gas classification that gas utensil is corresponding.
2, gas utensil combustion characteristics measures
Gas utensil combustion characteristics measures, mainly carry out the test of gas utensil limit combustion conditions, general test respectively exceed standard from flame (de-fire), tempering, CO, the combustion conditions such as Huang Yan, carry out the data acquisition and processing (DAP) of corresponding boundary Gas Components during a series of limiting condition state point.According to volumetric flow rate or the component ratio of the flow controller of each bye-pass gathered, calculate corresponding burning performance parameter, draw each combustion pattern.
Claims (6)
1. determine a testing experimental system for gas utensil combustion characteristics, 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;
Wherein, unstrpped gas feeding mechanism I, the bye-pass measurement of gas flow are connected with feedback assembly VI, terminal gas utensil burner and proving installation VIII with feedback assembly VI, air mixture pipeline stable-pressure device V, fire retardant device VII, pressure measurement successively with control device II, pipeline cutting-off III, bleeding device IV, pressure measurement; The output terminal of pressure measurement and feedback assembly VI, terminal gas utensil burner and proving installation VIII and flue gas analysis, data processing equipment Ⅸ is connected with the input end of DTU (Data Transfer unit) Ⅹ and industrial computer Ⅺ; The bye-pass measurement of gas flow and control device II are bi-directionally connected with DTU (Data Transfer unit) Ⅹ and industrial computer Ⅺ;
The above-mentioned bye-pass measurement of gas flow and control device II measure form with the mass flow controller of valve dynamic control function or laminar-flow type flowmeter and data line by having high-precision flow concurrently; Industrial computer Ⅺ is connected with mass flow controller or laminar-flow type flowmeter by DTU (Data Transfer unit) Ⅹ, data line, realizes the transmitted in both directions of data-signal and steering order;
Above-mentioned air mixture pipeline stable-pressure device V is made up of valve sets, gas pressurizer; The four road parallel voltage-stabilizing gas pipings for connecting in system: wherein three gas stabilized-pressure bye-passes in parallel are working line, and another bye-pass is bypass line.
2. the testing experimental system determining gas utensil combustion characteristics according to claim 1, it is characterized in that: above-mentioned raw materials gas supply device I is the distribution unstripped gas conveying bye-pass that the many gas compositions of multichannel pure gas component or multichannel are formed, and on each bye-pass, setting pressure regulates and measuring apparatus, by-pass valve control successively respectively.
3. the testing experimental system determining gas utensil combustion characteristics according to claim 1, it is characterized in that: above-mentioned pressure measurement and feedback assembly VI are made up of pressure unit or pressure gauge and valve, and the digital pressure signal of transmission is connected with industrial computer Ⅺ with DTU (Data Transfer unit) Ⅸ by data line.
4. the testing experimental system determining gas utensil combustion characteristics according to claim 1, is characterized in that: above-mentioned pipeline cutting-off III, bleeding device IV, fire retardant device VII form fuel gas pipeline safe-guard system; Wherein, pipeline cutting-off III operation valve that is the ball valve or solenoid valve and mixed pipe line that are installed on bye-pass; Its bleeding device IV by diffusion valve, diffuse pipeline, diffuse combustor forms, and diffuses pressure≤10kPa; Its fire retardant device VII is connected to form successively by two spark arresters and a cutting-off valve.
5. the testing experimental system determining gas utensil combustion characteristics according to claim 1, is characterized in that: above-mentioned terminal gas utensil burner and proving installation VIII are made up of gas utensil burner, flame monitor and smoke sampling device; Wherein gas utensil burner is generally atmospheric burner.
6. the testing experimental system determining gas utensil combustion characteristics according to claim 1, is characterized in that: above-mentioned flue gas analysis and data processing equipment Ⅸ are transmitted by flue gas analyzer, data and form with conversion equipment.
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| CN201464198U (en) * | 2009-03-09 | 2010-05-12 | 中国市政工程华北设计研究总院 | Device for defining combustion adaptation region or combustion condition of gas appliance |
| CN201804012U (en) * | 2010-05-28 | 2011-04-20 | 中国市政工程华北设计研究总院 | Testing experimental device for determining combustion characteristics of gas appliance |
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2010
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Address after: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee after: China public works North China design studies Zong Yuan company limited Address before: 300071 No. 99 Meteorological Observatory Road, Tianjin, Hexi District Patentee before: North China Municipal Engineering Design & Research Institute |