CN105136508A - DMMP vapor protective dosage test system and testing method thereof - Google Patents
DMMP vapor protective dosage test system and testing method thereof Download PDFInfo
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- CN105136508A CN105136508A CN201510640463.9A CN201510640463A CN105136508A CN 105136508 A CN105136508 A CN 105136508A CN 201510640463 A CN201510640463 A CN 201510640463A CN 105136508 A CN105136508 A CN 105136508A
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Abstract
Disclosed in the invention is a DMMP vapor protective dosage test system comprising a DMMP vapor generation chamber, a constant-temperature sampling chamber, a central control and product testing chamber, and a gas emission chamber. A gas temperature and humidity control system and a DMMP vapor generation device are arranged in the DMMP vapor generation chamber; a testing sampling system and a constant-temperature device are arranged in the constant-temperature sampling chamber; a controller and a product testing system are arranged inside the central control and product testing chamber; and a gas emission device is arranged inside the gas emission chamber. The gas temperature and humidity control system, the DMMP vapor generation device, the testing sampling system, the product testing system, and the gas emission device are successively connected. The controller is used for controlling motions of the gas temperature and humidity control system, the DMMP vapor generation device, the testing sampling system, the product testing system, the gas emission device, and the constant-temperature device. The system and method can be used for testing and evaluating a DMMP vapor protective dosage; and technical requirements of technical indexes and product acceptance by enterprises can be met, wherein the requirements are formulated by the ''interim measures to production safety management of dedicated equipment for civil air defence''.
Description
Technical field
The invention belongs to civil air defense constructions and installations detection technique field, be specifically related to DMMP vapor protection dosage test macro and method of testing thereof.
Background technology
Country's people's air defense is done in " management tentative method are installed in the production of people's air defence specialized equipment " of issue in the test item issued about gas-particulate filter performance detection apparatus project and is related to DMMP protective agent measurement examination, adopts DMMP protective agent to measure test system and tests.In prior art, test standard set-up does not carry out test and the evaluation of DMMP vapor protection dosage.Test unit is a set of technical sophistication, the test battery equipment that testing requirement is high, and the environmental baseline, personnel, test method etc. of test all have a huge impact test findings, cause detecting misdata.
Summary of the invention
Object one of the present invention, DMMP vapor protection dosage test macro is provided, for testing the DMMP vapor protection dosage of test products and evaluate, meet regulation technical indicator and enterprise in " people's air defence specialized equipment production safety management tentative method " and check and accept the technical requirement of product.
Technical scheme of the present invention is achieved in that
A kind of DMMP vapor protection dosage test macro, this system comprises DMMP steam generation chamber, constant temperature sampling hut, middle control and product test room and gas discharging room, be provided with in described DMMP steam generation chamber in the warm and humid control system of gas and DMMP steam generating device, described constant temperature sampling hut and be provided with test sampling system and thermostat, described middle control and product test indoor are provided with controller and product testing system, described gas discharging indoor are provided with gas discharging apparatus
The warm and humid control system of described gas, DMMP steam generating device, test sampling system, product testing system are connected successively with gas discharging apparatus, and described controller is for controlling the warm and humid control system of described gas, DMMP steam generating device, test sampling system, product testing system, gas discharging apparatus and thermostat action;
The warm and humid control system of described gas comprises the dehumidifier, air preheater and the flowmeter that are connected successively, and described flowmeter is connected with described DMMP steam generating device, is provided with temperature sensor A between described air preheater and described flowmeter
1with humidity sensor B
1, be provided with humidification balance device between described flowmeter and described DMMP steam generating device, described controller and described temperature sensor A
1with humidity sensor B
1signal connects, and described controller controls described dehumidifier and described air preheater action, and described humidification balance device is connected with described controller;
Described DMMP steam generating device comprises generator unit and mixing pipeline, and described flowmeter is connected with described generator unit with described mixing pipeline respectively, and described flowmeter and described mixing pipeline junction are provided with solenoid valve C
1, described flowmeter and described generator unit junction are provided with solenoid valve C
2, described generator unit connects described test sampling system by described mixing pipeline, and described generator unit and described mixing pipeline junction are provided with solenoid valve C
3, described controller controls described generator unit, solenoid valve C
1, solenoid valve C
2with solenoid valve C
3action;
Described test sampling system comprises the testing conduit be connected with described mixing pipeline, described testing conduit is provided with temperature sensor A
5with humidity sensor B
2, the tail end of described testing conduit is also provided with test sampler, described controller and described temperature sensor A
5with humidity sensor B
2signal connects, and described test sampler is connected with described controller;
Described product testing system comprises test products, debug products, toxic agent tester and exhaust gas filter, and described test products is installed in test products mounting pipe, and the described test products mounting pipe of test products both sides is provided with solenoid valve C
6with solenoid valve C
7, described test products and described solenoid valve C
7between test products mounting pipe on described toxic agent tester is set, described debug products is installed in debug products mounting pipe, and the described debug products mounting pipe of described debug products both sides is provided with solenoid valve C
4with solenoid valve C
5described test products mounting pipe is all connected with described testing conduit near one end of described testing conduit with described debug products mounting pipe, described test products mounting pipe is all connected with described exhaust gas filter with the tail end of described debug products mounting pipe, and described controller controls described solenoid valve C
4, solenoid valve C
5, solenoid valve C
6with solenoid valve C
7action, described toxic agent tester is connected with described controller signals;
Described gas discharging apparatus comprises blower fan and air quantity frequency-variable controller, and described blower fan is connected with described tail gas absorber, and described air quantity frequency-variable controller controls described blower fan action, and described fan frequency conversion controller is connected with described central controller.
The porch of described dehumidifier is provided with airstrainer, and the endpiece of described dehumidifier is provided with the dehumidifier exhaust duct upwards extended, and the outlet of described dehumidifier is connected by air preheater draft tube with between described air preheater inlet end;
The both sides of described flowmeter are respectively arranged with flowmeter blast pipe and the flowmeter discharge pipe of flat, described flowmeter blast pipe connects described air preheater outlet side, described flowmeter discharge pipe connects described generator unit, and described flowmeter intake stack arranges described temperature sensor A
1with humidity sensor B
1, described flowmeter discharge pipe is provided with described humidification balance device.
Further, described generator unit comprises generator switch board, generator, generator main air duct and air intake stack, described generator switch board is connected with described controller, for controlling described generator action, one end of described air blast pipe connects described flowmeter discharge pipe, the other end of described air blast pipe, one end of generator main air duct and described generator are by primary branch road three-way pipe UNICOM, and the junction of described primary branch road three-way pipe and described generator main air duct is provided with solenoid valve C
1, the junction of described primary branch road three-way pipe and described generator is provided with described solenoid valve C
2, the other end of described generator top, generator main air duct and the inlet end of described mixing pipeline are by positive three-way pipe UNICOM, and described generator and described positive three-way pipe junction are provided with solenoid valve C
3.
Further, described generator comprises generator tank body, left blast pipe and right blast pipe is provided with in the middle part of described generator tank body, left blast pipe and right blast pipe circularize and are symmetrical arranged, the connection position of described left blast pipe and right blast pipe and described generator tank body is provided with porous masses, air inlet docking and the described primary branch road three-way pipe UNICOM of described left blast pipe and right blast pipe; The upper end of described generator tank body is provided with generator lid, the connection position of described generator lid and described generator tank body is provided with porous masses, described generator lid and described positive three-way pipe UNICOM, described generator lid and described positive three-way pipe junction arrange described solenoid valve C
3; Described generator tank base is provided with discharge gate, and described generator tank base sidewall is provided with well heater D, and described generator tank wall is provided with liquid level gauge, and described generator tank body is provided with generator feeding cover and temperature sensor A
2, described well heater D, liquid level gauge and temperature sensor A
2all be connected with described controller.
Further, described mixing pipeline comprises mixing bend, two groups of horizontal mixing bends I, two groups longitudinally mixing bends II and many group mixing straight ways, the inlet end of described mixing bend connects described positive three-way pipe, the other end of described mixing bend connects one end of described laterally mixing bend I, alternately connected by mixing straight way between described laterally mixing bend I and described longitudinally mixing bend II, the bottom of described laterally mixing bend I is provided with discharge gate, and described mixing straight way is provided with temperature sensor A
3with temperature sensor A
4, described temperature sensor A
3with temperature sensor A
4be connected with described controller signals.
Further, described test sampling system also comprises fine filter, the inlet end of described fine filter connects the outlet side of described mixing pipeline, the outlet side of described fine filter connects the inlet end of described testing conduit, described thermostat is connected with described controller, for controlling the temperature constant in constant temperature sampling hut.
Further, the two ends of described test products mounting pipe are separately installed with the test products take-off pipe in quadrant arcuation, and the junction of described test products mounting pipe and described test products take-off pipe is respectively equipped with solenoid valve C
6with solenoid valve C
7, the two ends of described debug products mounting pipe are separately installed with the debug products take-off pipe in quadrant arcuation, and the junction of described debug products mounting pipe and described debug products take-off pipe is provided with solenoid valve C
4with solenoid valve C
5;
Described in front end, test products take-off pipe, debug products take-off pipe are connected by three-way pipe with the outlet side of described testing conduit, described in rear end, test products take-off pipe, debug products take-off pipe are connected by three-way pipe with the inlet end of described exhaust gas filter, the outlet side of described tail gas absorption exhaust duct connects the inlet end of described exhaust gas filter, and the outlet side of described exhaust gas filter connects the inlet end of described blower fan.
Further, described blower fan comprises air exhauster and tail gas absorber, is connected between described air exhauster and the outlet side of described tail gas absorber by blower fan flexible pipe, and the inlet end of described tail gas absorber is connected with the outlet side of described exhaust gas filter.
Object two of the present invention, provides a kind of method of testing of DMMP vapor protection dosage test macro
The method of testing of DMMP vapor protection dosage test macro, concrete steps are as follows,
Step 1, arranges the correlation parameter of test products in the controller;
Step 2, adds DMMP in generator;
Step 3, Installation and Debugging product;
Step 4, carbon pipe humidification balance;
Open the solenoid valve C in the debug products mounting pipe of debug products both sides
4with solenoid valve C
5open and solenoid valve C
1, close the solenoid valve C in the test products mounting pipe of test products both sides
6with solenoid valve C
7and solenoid valve C
2with solenoid valve C
3then blower fan and dehumidifier is started, regulate after in air quantity to the scope of testing requirements and start air preheater and thermostat to the heating of constant temperature sampling hut, when air quantity reach setting range, air in pipeline temperature and humidity reach setting range time, start humidification balance device and carry out humidification and balance;
Step 5, installs tested products;
Step 6, DMMP steam initial concentration is measured
Open the solenoid valve C in the debug products mounting pipe of debug products both sides
4with solenoid valve C
5and solenoid valve C
1, solenoid valve C
2with solenoid valve C
3, close the solenoid valve C in the test products mounting pipe of test products both sides
6with solenoid valve C
7then blower fan and dehumidifier is started, startup air preheater and thermostat after in air quantity to the scope of testing requirements is regulated to heat constant temperature sampling hut and DMMP evaporator, when the DMMP in generator is heated to evaporating temperature, start stable generation DMMP steam, when pipeline air quantity reach setting range, air in pipeline temperature and humidity reach setting range time, carry out DMMP steam initial concentration measure, start test sampler carry out DMMP steam initial concentration measure;
Step 7, tested products is measured;
After DMMP initial concentration reaches specified scope, the solenoid valve C in the debug products mounting pipe of enable debugs product both sides
4with solenoid valve C
5, open the solenoid valve C in the test products mounting pipe of test products both sides
6with solenoid valve C
7, test sampler proceeds DMMP steam initial concentration and measures; And keep pipeline air quantity to reach setting range, air in pipeline temperature and humidity reaches setting range, start timing and also open toxic agent tester, carry out test products and the guard time of DMMP steam is tested;
Step 8, takes off tested products, and test completes, and after having tested, waits for fan operation closing device and power supply again after 2 hours, is discharged by the DMMP gas in pilot system.
Beneficial effect of the present invention:
1) the present invention includes four operation rooms be connected successively, be respectively the generation of DMMP steam, constant temperature sampling hut, middle control and product test room and gas discharging room, adopt unit split-type structural, be beneficial to experiment work carry out and operate easy, meet environmental requirement, gas circuit, machinery etc. are integrated in one, be convenient to industry spot safeguard, whole system taken into account personal security and general shape attractive in appearance.
2) system in DMMP steam generation chamber is by air intake test pipe, pre-filtering is carried out through airstrainer, dehumidifier and air pre-heater to have dehumidified heating to the air sucked, flowmeter is used for the accurate calculating of air tolerance in pipeline, humidification balance device carries out the humidification balancing work of carbon pipe, and once can complete the humidification balance of two carbon pipes, generating unit completes DMMP evaporation and the mixing of air, obtain the test gas containing normal concentration, the design of mixing pipeline, further mixing air and DMMP steam, and the sedimentation of mixed gas and secondary vaporizing.
3) in constant temperature sampling hut, fine filter completes the filtration of the particle of the Large stone of pipeline mixed gas, testing conduit is segment length's straight pipeline, ensure that Flows mixed gas is stablized and constant current, be conducive to experiment sampling, the temperature in thermostat automatic control room, ensure whole value, test job can meet experiment condition, automaticity is high, is convenient to control, and test result is more accurate; Running test system works software on controller, software interface can the function controling parameters in each room of Real-Time Monitoring, and feed back each and measure and the data at reference mark, automatically complete carbon pipe humidification balance, the guard time etc. of DMMP steam initial concentration, tested products DMMP steam tests and test.
4) gas discharging room adopts the working method of negative pressure suction type, experimental channel is connected with air exhauster, air exhauster is under the effect of air quantity frequency-variable controller, changing different frequency makes motor produce different speed, whole for test pipe exhausting amount is extracted into regulation flow, completes control and the adjustment of test unit air mass flow.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that experiment test system of the present invention always forms schematic diagram.
Fig. 2 is experiment test device system diagram of the present invention.
Fig. 3 is systems axiol-ogy of the present invention and control structure schematic diagram.
Fig. 4 is the structural representation of DMMP steam generation chamber Inner Front End parts in the present invention.
Fig. 5 is the structural representation of generator in DMMP steam generation chamber in the present invention.
Fig. 6 is the structural representation of mixing pipeline in DMMP steam generation chamber in the present invention.
Fig. 7 is the structural representation of central control room and product test indoor part in the present invention.
Fig. 8 is the structural representation of blower fan in the present invention.
Fig. 9 is the structural representation of generator in the present invention.
10-DMMP steam generation chamber, 11-airstrainer, 12-dehumidifier, 121-dehumidifier exhaust duct, 13-air preheater, 131-air preheater draft tube, 14-flowmeter, 141-flowmeter blast pipe, 142-flowmeter discharge pipe, 15-humidification balance device
16-generator unit, 161-solenoid valve group, 162-generator, 163-generator feeding cover, 164-generator lid, 165-positive three-way pipe 166-generator main air duct 167-primary branch road three-way pipe 168-air intake stack 169-generator branch pipe(tube) 17-generator switch board
1621-generator tank body, 1623-left blast pipe 1624-right blast pipe 1625-porous masses
18-mixing pipeline, 181-mixing bend, 182-mixing bend, I 183-mixing straight way, 184-mixing bend, II 185-fine filter intake stack, 19-air preheater temperature-controlling cabinet
20-constant temperature sampling hut, 21-fine filter, 22-test sampler, 23-thermostat
30-middle control and product test room 31-test products, 311-test products mounting pipe, 312-test products take-off pipe, 32-debug products, 321-debug products mounting pipe, 322-debug products take-off pipe, 33-toxic agent tester, 34-exhaust gas filter, 35-controller, 36-tail gas absorption exhaust duct, 37-solenoid valve group
40-gas discharging room, 41-blower fan, 411-air exhauster, 412-blower fan flexible pipe, 413-tail gas absorber, 42-air quantity frequency-variable controller
50-power distribution cabinet
5-carbon pipe, 6-sample flow meter, 7-sampling pump, 8-vacuum pump
A
1~ A
5-temperature sensor B
1~ B
2-humidity sensor C
1~ C
7-solenoid valve 1622-D-well heater E-liquid level gauge
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Important technological parameters in the present invention arranges as follows:
Dehumidifier: voltage AC380, power 8kW, moisture removal 20kg/h;
Air preheater: voltage AC380V, peak power 56kW, heating maximum temperature 80 DEG C;
DMMP steam generating unit: voltage AC380V, peak power 30kW, generator volume 150L (liquid level 0 ~ 650mm);
Blower fan: voltage AC380V, peak power 11kW, maximum quantity of wind 1500m
3/ h.
Principle of work of the present invention: under prescribed test conditions, utilizes DMMP vapor generation system, is first evaporated by liquid D MMP, obtains the test air containing normal concentration DMMP with air after mixing; Then test gas is continued through tested products with nominal air delivery, the initial concentration entering tested products DMMP steam is measured by charcoal pipe weight method, the DMMP vapor permeation concentration of toxic agent monitor monitoring tested products, time setting is reached to DMMP vapor permeation concentration from passing into test gas, be the guard time of test products to DMMP steam, the product of the initial concentration of guard time and tested products DMMP steam is the protection dosage of tested products to DMMP steam.
Referring to figs. 1 through Fig. 3, a kind of DMMP vapor protection dosage test macro, this system comprises DMMP steam and occurs 10, constant temperature sampling hut 20, middle control and product test room 30 and gas discharging room 40, DMMP steam occurs 10, constant temperature sampling hut 20, power distribution cabinet 50 is equipped with in middle control and product test room 30 and gas discharging room 40, the warm and humid control system of gas and DMMP steam generating device is provided with in DMMP steam generation chamber, test sampling system and thermostat 23 is provided with in constant temperature sampling hut 20, controller 35 and product testing system is provided with in middle control and product test room 30, gas discharging apparatus is provided with in gas discharging room 40,
The warm and humid control system of gas, DMMP steam generating device, test sampling system, product testing system are connected successively with gas discharging apparatus, and controller 35 is for controlling the warm and humid control system of gas, DMMP steam generating device, 23 action of test sampling system, product testing system, gas discharging apparatus and thermostat;
See Fig. 4, Fig. 5 and Fig. 6, DMMP steam occurs to be provided with the warm and humid control system of gas in 10, DMMP steam generating device and power distribution cabinet 50, greenhouse control system comprises the dehumidifier 12 be connected successively, air preheater 13 and flowmeter 14, the porch of dehumidifier 12 is provided with airstrainer 11, the endpiece of dehumidifier 12 is provided with the dehumidifier exhaust duct 121 upwards extended, the endpiece of dehumidifier 12 is connected through air preheater draft tube 131 with the entrance point of air preheater 13, air preheater 13 is connected with air preheater temperature-controlling cabinet 19, air preheater temperature-controlling cabinet 19 controls air preheater 13 and works, the both sides of flowmeter 14 are respectively arranged with flowmeter blast pipe 141 and the flowmeter discharge pipe 142 of flat, flowmeter blast pipe 141 connects air preheater 13 outlet side, set temperature sensors A on flowmeter 14 blast pipe 141 road
1with humidity sensor B
1, flowmeter 14 discharge pipe 142 is provided with humidification balance device 15,
Flowmeter discharge pipe 142 connects generator unit 16, generator unit 16 comprises the generator switch board 17 be arranged in DMMP steam generation 10, generator 162, generator main air duct 166 and air intake stack 168, generator switch board 17 is connected with controller 35, for control generator 162 action, one end connection traffic meter discharge pipe 142 of air intake stack 168, the other end of air intake stack 168, one end of generator main air duct 166 and generator 162 are by primary branch road three-way pipe 167 UNICOM, primary branch road three-way pipe 167 is provided with solenoid valve C with the junction of generator main air duct 166
1, primary branch road three-way pipe 167 is provided with solenoid valve C with the junction of generator 162
2, the other end of generator 162 top, generator main air duct 166 and the inlet end of mixing pipeline 18 are by positive three-way pipe 165 UNICOM, and generator 162 and positive three-way pipe 165 junction are provided with solenoid valve C
3, solenoid valve C
1, solenoid valve C
2with solenoid valve C
3form solenoid valve group 161, controller 35 Controlling solenoid valve group 161 work in combination realizes the premixed of air and DMMP steam,
See Fig. 5 and Fig. 9, wherein, generator 162 comprises generator tank body 1621, left blast pipe 1623 and right blast pipe 1624 is provided with in the middle part of generator tank body 1621, left blast pipe 1623 and right blast pipe 1624 circularize and are symmetrical arranged, left blast pipe 1623 and right blast pipe 1624 are provided with porous masses 1625 with the connection position of generator tank body 1621, air inlet docking and primary branch road three-way pipe 167 UNICOM of left blast pipe 1623 and right blast pipe 1624; The upper end of generator tank body 1621 is provided with generator lid 164, generator lid 164 is provided with porous masses 1625 with the connection position of generator tank body 1621, generator lid 164 and positive three-way pipe 165 UNICOM, generator lid 164 and positive three-way pipe 165 junction arrange solenoid valve C
3; Be provided with discharge gate bottom generator tank body 1621, bottom generator tank body 1621, sidewall is provided with well heater D1622, and generator 162 tank wall is provided with liquid level gauge E, and generator tank body 1621 is provided with generator feeding cover 163 and temperature sensor A
2, well heater D1622, liquid level gauge and temperature sensor A
2all be connected with controller 35;
See Fig. 6, wherein, mixing pipeline 18 comprises mixing bend 181, two groups laterally mixing bend I 182, two groups longitudinally mixing bend II 184 and many group mixing straight ways, the inlet end of mixing bend 181 connects positive three-way pipe 165, the other end of mixing bend 181 connects one end of laterally mixing bend I 182, laterally pass through the alternately connection of mixing straight way 183 between mixing bend I 182 and longitudinal mixing bend II 184, laterally the bottom of mixing bend I 182 is provided with discharge gate, and mixing straight way 183 is provided with temperature sensor A
3with temperature sensor A
4, temperature sensor A
3with temperature sensor A
4be connected with controller 35 signal;
Test sampling system in constant temperature sampling hut 20 comprises the testing conduit and fine filter 21 that are connected with mixing pipeline 18, the inlet end of fine filter 21 connects the outlet side of mixing pipeline 18, the inlet end of the outlet side connecting test pipeline of fine filter 21, testing conduit is provided with temperature sensor A
5with humidity sensor B
2, the tail end of testing conduit is also provided with test sampler 22, controller 35 and temperature sensor A
5with humidity sensor B
2signal connects, test sampler 22 is connected with controller 35, the thermostat 23 for controlling temperature constant in constant temperature sampling hut 20 is provided with in constant temperature sampling hut 20, the afterbody of testing conduit is provided with stopple coupon, stopple coupon is the gas sample pipeline of test sampler 22, sampling is connected with carbon pipe 5, by carbon pipe 5 and test sampler 22 inside vacuum pump 7 act under, by the mixed gas sucking-off in testing conduit, sample flow meter 6 after tested on sampler 22 regulates and indicates, and makes the gas flow rate constant flowing through carbon pipe 5 on specified data;
See Fig. 7, product testing system in middle control and product test room 30 comprises test products 31, debug products 32, toxic agent tester 33 and exhaust gas filter 34, test products 31 is installed in the middle part of the test products mounting pipe 311 of straight dress, the two ends of test products mounting pipe 311 are separately installed with the test products take-off pipe 312 in quadrant arcuation, and test products mounting pipe 311 is respectively equipped with solenoid valve C with the junction of test products take-off pipe 312
6with solenoid valve C
7debug products 32 is installed in the middle part of the debug products mounting pipe 321 of straight dress, the two ends of debug products mounting pipe 321 are separately installed with the debug products take-off pipe 322 in quadrant arcuation, and debug products mounting pipe 321 is provided with solenoid valve C with the junction of debug products take-off pipe 322
4with solenoid valve C
5, controller 35 Controlling solenoid valve C
4, solenoid valve C
5, solenoid valve C
6with solenoid valve C
7action, toxic agent tester 33 is connected with controller 35 signal;
The test products take-off pipe 312, the debug products take-off pipe 322 that are positioned at front end are connected by three-way pipe with the outlet side of testing conduit, back end test product take-off pipe 312, debug products take-off pipe 322 are connected by three-way pipe with the inlet end of exhaust gas filter 34, tail gas absorption exhaust duct 36 connects the inlet end of exhaust gas filter 34, and the outlet side of exhaust gas filter 34 connects the inlet end of tail gas absorber 413;
Be provided with air quantity frequency-variable controller 42 and blower fan 41 in gas discharging room 40, fan frequency conversion controller 35 is connected with central controller 35, air quantity frequency-variable controller 42 for blower fan 41 in the control of the air mass flow of experimental phase and adjustment,
See Fig. 8, wherein, blower fan 41 comprises air exhauster 411 and tail gas absorber 413, is connected between air exhauster 411 and the outlet side of tail gas absorber 413 by blower fan flexible pipe 412, and the inlet end of tail gas absorber 413 is connected with the outlet side of exhaust gas filter 34.
The method of testing of DMMP vapor protection dosage test macro, concrete steps are as follows,
Step 1, arranges the correlation parameter of test products in controller 35, installation testing product 31;
The parameter of the present embodiment is 1000 type product testing flows is 1000 (m
3/ h); Test flow deviation: lower deviation on test flow, is traditionally arranged to be 10 ~ 20 (m
3/ h); Mixed gas temperature: the temperature of test mixed gas temperature, is generally set to 41 (DEG C); Mixed gas temperature deviation: be traditionally arranged to be 3 (DEG C); Mixed gas humidity: the maximal humidity of test mixed gas temperature, is generally set to 40 (%RH); DMMP steam initial concentration: be traditionally arranged to be 4.0 (mg/L); DMMP steam initial concentration deviation: be traditionally arranged to be 1.0 (mg/L); Termination test concentration: the penetrating concentration after tested products lost efficacy to DMMP protection, is traditionally arranged to be 0.04 (mg/L); Product protects dosage to DMMP: tested products is to the protection dosage of DMMP steam.
Step 2, adds DMMP in generator;
Before product testing, DMMP liquid level in DMMP steam generator should be checked, liquid level should be determined according to product testing DMMP consumption, but minimum liquid level minimum altitude should not lower than 200 (mm), and maximum height should not higher than 500 (mm); The DMMP purity of filling is not less than 99.5%;
Step 3, Installation and Debugging product;
Step 4, carbon pipe humidification balance;
Under test temperature and damp condition, be humidified charcoal pipe state of saturation, and when avoiding initial concentration to measure sampling, the moisture in gas on the impact of charcoal pipe weight, thus eliminates moisture to the impact of concentration measurement;
Open the solenoid valve C in the debug products mounting pipe 321 of debug products 32 both sides
4with solenoid valve C
5open and solenoid valve C
1, close the solenoid valve C in the test products mounting pipe 311 of test products 31 both sides
6with solenoid valve C
7and solenoid valve C
2with solenoid valve C
3, then blower fan 41 and dehumidifier 12 is started, startup air preheater 13 and thermostat 23 pairs of constant temperature sampling huts 20 after in air quantity to the scope of testing requirements are regulated to heat, when air quantity reaches setting range, when air in pipeline temperature and humidity reaches setting range, measure the initial weight of the 1st group of charcoal pipe 5 in humidification balance device 15 on request, after having measured initial weight, by carbon pipe access humidification balance device, start the sampling sampling pump 7 in humidification balance device 15, start the 1st humidification balance, humidification time is weighed to taking off charcoal pipe, charcoal pipe is taken off sealing, and cool to room temperature, on request charcoal pipe is weighed, and then by carbon pipe access humidification balance device, start sampling pump 7, start the 2nd humidification balance, if charcoal pipe humidification balance reaches requirement, stop humidification balance,
Step 5, installs tested products;
Step 6, DMMP steam initial concentration is measured
Open the solenoid valve C in the debug products mounting pipe 321 of debug products 32 both sides
4with solenoid valve C
5and solenoid valve C
1, solenoid valve C
2with solenoid valve C
3, close the solenoid valve C in the test products mounting pipe 311 of test products 31 both sides
6with solenoid valve C
7then blower fan 41 and dehumidifier 12 is started, the rear air preheater 13 and thermostat 23 pairs of constant temperature sampling huts 20 and DMMP evaporator of starting in air quantity to the scope of testing requirements is regulated to heat, when the DMMP in generator 162 is heated to evaporating temperature, start stable generation DMMP steam, when pipeline air quantity reach setting range, air in pipeline temperature and humidity reach setting range time, carry out DMMP steam initial concentration measure, start test sampler 22 carry out DMMP steam initial concentration measure;
Step 7, tested products is measured;
After DMMP initial concentration reaches specified scope, the solenoid valve C in the debug products mounting pipe 321 of enable debugs product 32 both sides
4with solenoid valve C
5, open the solenoid valve C in the test products mounting pipe 311 of test products 31 both sides
6with solenoid valve C
7, test sampler 22 proceeds DMMP steam initial concentration and measures; And keep pipeline air quantity to reach setting range, air in pipeline temperature and humidity reaches setting range, starts timing and also opens toxic agent tester 33, carries out the guard time test of test products 31 pairs of DMMP steams;
Step 8, takes off tested products, and test completes, after having tested, wait for blower fan 41 run 2 hours after closing device and power supply again, the DMMP gas in pilot system is discharged.
Also comprise following feedback regulation control in the course of work of this system: Boiler pressure control, air quantity frequency-variable controller regulates the running frequency of blower fan, can change test air volume; When the test air volume that flowmeter monitors is on the low side, the running frequency that air quantity frequency-variable controller improves blower fan strengthens test air volume; When the test air volume that flowmeter monitors is higher, air quantity frequency-variable controller reduces the running frequency of blower fan to reduce test air volume;
Gas temperature and Humidity Automatic Control, if temperature sensor A
1with humidity sensor B
1the temperature and humidity of real-time detection experiment gas, pipeline gas-heated temperature is regulated by air preheater controller, change the temperature and humidity of test gas, when the temperature drift of test gas, air preheater controller controls air preheater and reduces pipeline gas heating-up temperature, when the temperature of test gas is on the low side or humidity is bigger than normal, air preheater controller controls air preheater and dehumidifier improves pipeline gas heating-up temperature, reduces pipeline gas humidity;
Initial concentration controls, and when the DMMP in generator is heated to evaporating temperature, starts stable generation DMMP steam, when air quantity reaches setting range, air in pipeline temperature and humidity reaches setting range, now should carry out DMMP steam initial concentration and measure; Test carbon pipe is placed in test sampler 22, DMMP steam in gas sampled can be adsorbed under certain flow, controller is according to the carbon pipe weight test result of certain hour, the initial concentration of automatic calculating DMMP steam, if the initial concentration that controller calculates lower than specified scope, then should strengthen solenoid valve C
2aperture, and reduce solenoid valve C
1aperture; If initial concentration is higher than specified scope, then should suitably reduce solenoid valve C
2aperture, and strengthen solenoid valve C
1aperture; Proceed initial concentration to measure.
These are only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a DMMP vapor protection dosage test macro, it is characterized in that: this system comprises DMMP steam generation chamber, constant temperature sampling hut (20), middle control and product test room (30) and gas discharging room (40), the warm and humid control system of gas and DMMP steam generating device is provided with in described DMMP steam generation chamber, test sampling system and thermostat (23) is provided with in described constant temperature sampling hut (20), controller (35) and product testing system is provided with in described middle control and product test room (30), gas discharging apparatus is provided with in described gas discharging room (40),
The warm and humid control system of described gas, DMMP steam generating device, test sampling system, product testing system are connected successively with gas discharging apparatus, and described controller (35) is for controlling the warm and humid control system of described gas, DMMP steam generating device, test sampling system, product testing system, gas discharging apparatus and thermostat (23) action;
The warm and humid control system of described gas comprises the dehumidifier (12), air preheater (13) and the flowmeter (14) that are connected successively, described flowmeter (14) is connected with described DMMP steam generating device, is provided with temperature sensor A between described air preheater (13) and described flowmeter (14)
1with humidity sensor B
1, be provided with the balance device (15) that is humidified between described flowmeter (14) and described DMMP steam generating device, described controller (35) and described temperature sensor A
1with humidity sensor B
1signal connects, and described controller (35) controls described dehumidifier (12) and described air preheater (13) action, and described humidification balance device (15) is connected with described controller (35);
Described DMMP steam generating device comprises generator unit (16) and mixing pipeline (18), described flowmeter (14) is connected with described generator unit (16) with described mixing pipeline (18) respectively, and described flowmeter (14) and described mixing pipeline (18) junction are provided with solenoid valve C
1, described flowmeter (14) and described generator (162) unit (16) junction are provided with solenoid valve C
2described generator (162) unit (16) connects described test sampling system by described mixing pipeline (18), and described generator (162) unit (16) and described mixing pipeline (18) junction are provided with solenoid valve C
3, described controller (35) controls described generator (162) unit (16), solenoid valve C
1, solenoid valve C
2with solenoid valve C
3action;
Described test sampling system comprises the testing conduit be connected with described mixing pipeline (18), described testing conduit is provided with temperature sensor A
5with humidity sensor B
2, the tail end of described testing conduit is also provided with test sampler (22), described controller (35) and described temperature sensor A
5with humidity sensor B
2signal connects, and described test sampler (22) is connected with described controller (35);
Described product testing system comprises test products (31), debug products (32), toxic agent tester (33) and exhaust gas filter (34), described test products (31) is installed in test products mounting pipe (311), and the described test products mounting pipe (311) of test products (31) both sides is provided with solenoid valve C
6with solenoid valve C
7, described test products (31) and described solenoid valve C
7between test products mounting pipe (311) on described toxic agent tester (33) is set, described debug products (32) is installed in debug products mounting pipe (321), and the described debug products mounting pipe (321) of described debug products (32) both sides is provided with solenoid valve C
4with solenoid valve C
5described test products mounting pipe (311) is all connected with described testing conduit with described debug products mounting pipe (321) one end near described testing conduit, described test products mounting pipe (311) is all connected with described exhaust gas filter (34) with the tail end of described debug products mounting pipe (321), and described controller (35) controls described solenoid valve C
4, solenoid valve C
5, solenoid valve C
6with solenoid valve C
7action, described toxic agent tester (33) is connected with described controller (35) signal;
Described gas discharging apparatus comprises blower fan (41) and air quantity frequency-variable controller (35), described blower fan (41) is connected with described tail gas absorber, described air quantity frequency-variable controller (35) controls described blower fan (41) action, and described fan frequency conversion controller (35) is connected with described controller (35).
2. DMMP vapor protection dosage test macro as claimed in claim 1, it is characterized in that: the porch of described dehumidifier (12) is provided with airstrainer (11), the endpiece of described dehumidifier (12) is provided with the dehumidifier exhaust duct (121) upwards extended, and the outlet of described dehumidifier (12) is connected by air preheater draft tube (131) with between described air preheater (13) inlet end;
The both sides of described flowmeter (14) are respectively arranged with flowmeter blast pipe (141) and the flowmeter discharge pipe (142) of flat, described flowmeter blast pipe (141) connects described air preheater (13) outlet side, described flowmeter discharge pipe (142) connects described generator unit (16), and described flowmeter blast pipe (141) road arranges described temperature sensor A
1with humidity sensor B
1, described flowmeter discharge pipe (142) is provided with described humidification balance device (15).
3. DMMP vapor protection dosage test macro as claimed in claim 2, it is characterized in that: described generator unit (16) comprises generator switch board (17), generator (162), generator main air duct (166) and air intake stack (168), described generator switch board (17) is connected with described controller (35), for controlling described generator (162) action, one end of described air intake stack (168) connects described flowmeter discharge pipe (142), the other end of described air blast pipe, one end of generator main air duct (166) and described generator (162) are by primary branch road three-way pipe (167) UNICOM, described primary branch road three-way pipe (167) is provided with solenoid valve C with the junction of described generator main air duct (166)
1, described primary branch road three-way pipe (167) is provided with described solenoid valve C with the junction of described generator (162)
2the other end of described generator (162) top, generator main air duct (166) and the inlet end of described mixing pipeline (18) are by positive three-way pipe (165) UNICOM, and described generator (162) and described positive three-way pipe (165) junction are provided with solenoid valve C
3.
4. DMMP vapor protection dosage test macro as claimed in claim 3, it is characterized in that: described generator (162) comprises generator tank body (1621), described generator tank body (1621) middle part is provided with left blast pipe (1623) and right blast pipe (1624), left blast pipe (1623) and right blast pipe (1624) circularize and are symmetrical arranged, described left blast pipe (1623) and right blast pipe (1624) are provided with porous masses (1625) with the connection position of described generator tank body (1621), air inlet docking and described primary branch road three-way pipe (167) UNICOM of described left blast pipe (1623) and right blast pipe (1624), the upper end of described generator tank body (1621) is provided with generator lid (164), described generator lid (164) is provided with porous masses (1625) with the connection position of described generator tank body (1621), described generator lid (164) and described positive three-way pipe (165) UNICOM, described generator lid (164) and described positive three-way pipe (165) junction arrange described solenoid valve C
3, described generator tank body (1621) bottom is provided with discharge gate, described generator tank body (1621) bottom sidewall is provided with well heater D (1622), described generator (162) tank wall is provided with liquid level gauge (E), and described generator tank body (1621) is provided with generator feeding cover (163) and temperature sensor A
2, described well heater D (1622), liquid level gauge (E) and temperature sensor A
2all be connected with described controller (35).
5. DMMP vapor protection dosage test macro as claimed in claim 3, it is characterized in that: described mixing pipeline (18) comprises mixing bend (181), two groups laterally mix bend I (182), two groups longitudinally mixing bend II (184) and many groups mix straight way (183), the inlet end of described mixing bend (181) connects described positive three-way pipe (165), the other end of described mixing bend (181) connects one end of described laterally mixing bend I (182), alternately connected by mixing straight way (183) between described laterally mixing bend I (182) and described longitudinally mixing bend II (184), the bottom of described laterally mixing bend I (182) is provided with discharge gate, described mixing straight way (183) is provided with temperature sensor A
3with temperature sensor A
4, described temperature sensor A
3with temperature sensor A
4be connected with described controller (35) signal.
6. DMMP vapor protection dosage test macro as claimed in claim 5, it is characterized in that: described test sampling system also comprises fine filter (21), the inlet end of described fine filter (21) connects the outlet side of described mixing pipeline (18), the outlet side of described fine filter (21) connects the inlet end of described testing conduit, described thermostat (23) is connected with described controller (35), for controlling the temperature constant in constant temperature sampling hut (20).
7. DMMP vapor protection dosage test macro as claimed in claim 6, is characterized in that:
The two ends of described test products mounting pipe (311) are separately installed with the test products take-off pipe (312) in quadrant arcuation, and described test products mounting pipe (311) is respectively equipped with solenoid valve C with the junction of described test products take-off pipe (312)
6with solenoid valve C
7the two ends of described debug products mounting pipe (321) are separately installed with the debug products take-off pipe (322) in quadrant arcuation, and described debug products mounting pipe (321) is provided with solenoid valve C with the junction of described debug products take-off pipe (322)
4with solenoid valve C
5;
Described in front end, test products take-off pipe (312), debug products take-off pipe (322) are connected by three-way pipe with the outlet side of described testing conduit, described in rear end, test products take-off pipe, debug products take-off pipe (322) are connected by three-way pipe with the inlet end of described exhaust gas filter (34), the outlet side of described tail gas absorption exhaust duct (36) connects the inlet end of described exhaust gas filter (34), and the outlet side of described exhaust gas filter (34) connects the inlet end of described blower fan (41).
8. DMMP vapor protection dosage test macro as claimed in claim 7, it is characterized in that: described blower fan (41) comprises air exhauster (411) and tail gas absorber (413), be connected by blower fan flexible pipe (412) between described air exhauster (411) and the outlet side of described tail gas absorber (413), the inlet end of described tail gas absorber (413) is connected with the outlet side of described exhaust gas filter (34).
9. the method for testing of DMMP vapor protection dosage test macro as claimed in claim 8, concrete steps are as follows,
Step 1, arranges the correlation parameter of test products in controller (35);
Step 2, adds DMMP in generator;
Step 3, Installation and Debugging product;
Step 4, carbon pipe humidification balance;
Open the solenoid valve C in the debug products mounting pipe (321) of debug products (32) both sides
4with solenoid valve C
5open and solenoid valve C
1, close the solenoid valve C in the test products mounting pipe (311) of test products (31) both sides
6with solenoid valve C
7and solenoid valve C
2with solenoid valve C
3then blower fan (41) and dehumidifier (12) is started, air preheater (13) is started and thermostat (23) heats constant temperature sampling hut (20) after regulating air quantity interior to the scope of testing requirements, when air quantity reach setting range, air in pipeline temperature and humidity reach setting range time, start humidification balance device (15) carry out carbon pipe humidification balance;
Step 5, installs tested products;
Step 6, DMMP steam initial concentration is measured
Open the solenoid valve C in the debug products mounting pipe 321 of debug products 32 both sides
4with solenoid valve C
5and solenoid valve C
1, solenoid valve C
2with solenoid valve C
3, close the solenoid valve C in the test products mounting pipe (311) of test products (31) both sides
6with solenoid valve C
7then blower fan (41) and dehumidifier (12) is started, regulate and start air preheater (13) and thermostat (23) after in air quantity to the scope of testing requirements constant temperature sampling hut (20) and DMMP evaporator are heated, when the DMMP in generator (162) is heated to evaporating temperature, start stable generation DMMP steam, when pipeline air quantity reach setting range, air in pipeline temperature and humidity reach setting range time, carry out DMMP steam initial concentration to measure, start test sampler (22) and carry out the measurement of DMMP steam initial concentration;
Step 7, tested products is measured;
After DMMP initial concentration reaches specified scope, the solenoid valve C in the debug products mounting pipe (321) of enable debugs product (32) both sides
4with solenoid valve C
5, open the solenoid valve C in the test products mounting pipe (311) of test products (31) both sides
6with solenoid valve C
7, test sampler (22) proceeds DMMP steam initial concentration and measures; And keep pipeline air quantity to reach setting range, air in pipeline temperature and humidity reaches setting range, start timing and also open toxic agent tester (33), carry out test products (31) and the guard time of DMMP steam is tested;
Step 8, takes off tested products, and test completes, and after having tested, waits for that blower fan (41) to run after 2 hours closing device and power supply again, is discharged by the DMMP gas in pilot system.
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| CN114797516A (en) * | 2021-01-29 | 2022-07-29 | 陕西青朗万城环保科技有限公司 | Multi-component gas generation method and control system thereof |
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