CN100590434C - Test apparatus of large-scaled environment simulation - Google Patents
Test apparatus of large-scaled environment simulation Download PDFInfo
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- CN100590434C CN100590434C CN200610164942A CN200610164942A CN100590434C CN 100590434 C CN100590434 C CN 100590434C CN 200610164942 A CN200610164942 A CN 200610164942A CN 200610164942 A CN200610164942 A CN 200610164942A CN 100590434 C CN100590434 C CN 100590434C
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Abstract
This invention relates to one large integral environment analogue experiment device, which comprises high temperature cabinet, air cooling system, vacuum system, rapid conversion track set and remotetest and control system, wherein, the cabinet and temperature cabinet adopts gate to gate parallel distribution; the two cabinet sets rapid conversion track in charge for test parts rapid conversion;the air cooling system and vacuum system is in charge for temperature cabinet cool volume and to lower inside pressure; the temperature cabinet is in constant box structure composed of cooling board recycling system for analogue.
Description
(1) technical field:
The present invention relates to a kind of test apparatus of large-scaled environment simulation, integrate atmospheric low-temperature, constant-pressure and high-temperature, infrabar (highly) test, temperature-height and temperature shock totally five conventional environmental simulation test functions, parameters simulated performance index meets new American army mark MIL-STD-810F, and its temperature and pressure cabin and heat chamber useful volume are up to L * W * H=5 * 2 * 2m, satisfy of the testing requirements of big test specimen, belong to artificial environment weather control field as the 600Kg iron and steel that weighs.
(2) background technology:
Various product and equipment produce, pack, transport, load and unload, store, deposit with use in can the experience various complexity physical environment and induced environment, as high-altitude infrabar low temperature environment, high temperature and the quick alternation environment of low temperature etc.Environment for use that these are special and request for utilization have proposed strict more requirement to facility environment adaptability and environmental reliability, must carry out harsh environmental test, as temperature-highly test and temperature shock test.
Yet at present the home and abroad environment simulated test facility mostly is the one-parameter environmental simulation, as is high/low temperature environmental simulation or is the hypobaric simulation, can't satisfied temperature-height environmental simulation test requirement; And the thermal shock test chamber volume of development generally is no more than 1 cubic metre both at home and abroad at present, can't satisfy main equipment environmental simulation test requirement; In addition; often can adopt identical analog machine to realize to environment such as high temperature, low temperature or infrabar; if at all independent built environment simulated test facility of all individual event environmental simulation test projects; concerning specialty is born the unit of environmental simulation test task, certainly will increase equipment investment greatly, and cause the waste of device resource.
For this reason, temperature shock environmental-test facility maximization construction is the active demand that current main equipment carries out such environmental simulation test; Building the multifunctional comprehensive environmental-test facility, satisfy the environmental simulation test device that multi-parameter comprehensive simulation and multinomial army mark require, is the direction of current environment analog machine development.
(3) summary of the invention:
A kind of test apparatus of large-scaled environment simulation of the present invention, its objective is: adapt to the active demand of maximization, multiparameter and multifunctional comprehensive environmental-test facility, develop a kind of atmospheric low-temperature test, constant-pressure and high-temperature test, infrabar (highly) test, temperature-highly test and temperature shock totally five kinds of conventional environmental simulation test functions that integrate, and satisfy main equipment, carry out the test apparatus of large-scaled environment simulation of above-mentioned five kinds of test demands up to the test specimen of 5 * 2 * 2m, heavily about 600kg ferrous materials as volume.
A kind of test apparatus of large-scaled environment simulation of the present invention.This device mainly is made up of air-refrigeration system A, vacuum system B, temperature and pressure cabin C, heat chamber D, quick transfer trajectory car group E and remote TT﹠C system F.
Wherein, the useful volume of temperature and pressure cabin C and heat chamber D is L * W * H=5m * 2m * 2m, and adopts the door t door spacing to be arranged in parallel for 10 meters.
Temperature and pressure cabin C is a chief component of the present invention, can cause simultaneously in this cabin and carrying provides certain high and low temperature and infrabar simulated environment; Heat chamber D is a general hot environment simulation test cabin product, is mainly used in this device and causes and carry certain constant-pressure and high-temperature simulated environment.The physical simulation environmental parameter sees for details shown in Fig. 7 table in two cabins.
Ground is provided with quick transfer trajectory car group E between temperature and pressure cabin and heat chamber, is responsible for by the quick conversion of test specimen between temperature and pressure cabin and heat chamber two cabin environment.
Air-refrigeration system A is responsible for the environmental simulation of temperature and pressure cabin cold is provided, and have two the cover air feed/return-air ducts, respectively by two buing or get by illegal means heat circulating system and link to each other in cabin body steam line 09, cabin body return-air duct 10 and the total steam line 11 of cold drawing, the total return-air duct 08 of cold drawing and the cabin, temperature and pressure cabin, satisfy in the temperature and pressure cabin needs of low temperature environment simulation under the normal pressure and two kinds of situations of infrabar.
Vacuum system B is responsible for reducing temperature and pressure cabin internal pressure, realizes that hypobaric is simulated in the temperature and pressure cabin, and its pump-line 14 links to each other with cabin body exhaust tube flange 15 on being positioned at rear flank, temperature and pressure cabin end face.
All measurement and control signal lines in air-refrigeration system A, vacuum system B, temperature and pressure cabin C and the heat chamber D all link to each other with remote monitoring system F by trench, and then realize remote observing and controlling function.
This quick transfer trajectory car group E by ground rail 21 between floor rail 27, heat chamber and temperature and pressure cabin, railcar 22 in floor rail 20, the heat chamber in the temperature and pressure cabin, regulate bolt 23, railcar top track 24 and test specimen dolly 25 and form; Wherein railcar 22 lower ends are provided with four wheels, can roll fast on ground rail 21 between two cabins; The railcar top is provided with two railcar top tracks 24, be connected by four adjusting bolts 23 between this railcar top track 24 and railcar 22 car bodies, and the vertical direction height of this railcar of scalable top track 24, guarantee the square cone of its two ends head can be respectively with temperature and pressure cabin C and heat chamber D two cabins in the square hollow-core construction of floor rail 20,27 heads connect; On the test specimen dolly 25 transverse plane for carrying by test specimen 26, the lower end be provided with four wheels can be above railcar track 24, or rolling fast on the floor rail 20,27 two cabins in, thus together with the quick transfer process of being finished by test specimen between heat chamber and temperature and pressure cabin.
This temperature and pressure cabin C is for by large shape and the processing and manufacturing of channel-section steel reinforcement, anti-infrabar and have the large-size box structure of internal insulation structure, the elliposoidal hatch door relies on upper end bearing and guide rail structure to form side direction high-speed switch mode, useful volume is up to L * W * H=5m * 2m * 2m in the cabin, also comprise the circulation and the cold drawing circulation two cover air heat exchange circulation systems in the cabin simultaneously in the cabin, satisfy heat exchange demand under high pressure and the environment under low pressure respectively.
This temperature and pressure cabin C is a body structure, has a cabin body 31 and a hatch door 28; The cabin body 31 of this temperature and pressure cabin C becomes body structure by large shape and the processing and manufacturing of channel-section steel reinforcement, and is docking end face and big flange welding formation circular port with hatch door 28; 28 of hatch doors are welded into spheroid shape by heavy steel plate, and docking end face and big flange welding with the cabin body, thereby four clamping bolts 41 form the flange docking mode with cabin body 31 around can utilizing hatch door, and rely on the teflin ring 39 that is fixed on the cabin body butt joint end face to improve Butt sealing; Hatch door 28 utilizes top axle bearing structure 30 to hang on cabin body 31 head rail 40 of temperature and pressure cabin C, can manually finish side direction high-speed switch process; The view window 29 that is positioned at hatch door 28 centers vacuumizes glass structure for multilayer; Cabin body 31 and hatch door 28 all adopt internal insulation structure 32, form with the polyurethane foam method, and in the inner face riveting of heat-insulation layer cabin with the metal coating decorative panel; This place, cabin body 31 doorways hangs PEF high-low temperature resistant door curtain, the top is provided with and is with even orifice plate counter balance pocket 33 in this cabin body 31, the rear end is provided with circulation air path 37 in this cabin body 31, be provided with electric heater 35, centrifugal blower 36 in this circulation air path 37, be provided with in this cabin body 31 for floor rail 20 in the temperature and pressure cabin of test specimen dolly 25 operations;
Also comprise two in the C of this temperature and pressure cabin and buy or get by illegal means heat circulating system, one cover is for the cabin internal circulation system, mainly by be arranged in the counter balance pocket structure 33 of body 31 upper ends in cabin, be arranged in the circulation air path 37 of cabin body 31 rear ends with even orifice plate, the cabin body muffler flange 18 that is arranged in centrifugal blower 36, electric heater 35 and the cabin body air supply pipe flange 17 in the circulation air path and is positioned at cabin body 31 rear end face side-lowers is formed; And cabin body air supply pipe flange 17 links to each other with cabin body return-air duct 10 with the cabin body steam line 09 of air-refrigeration system A with flange connection respectively with cabin body muffler flange 18.
This circulation system is mainly used in high temperature or low temperature environment simulation test procedure under the interior atmospheric pressure environment of temperature and pressure cabin C.During the constant-pressure and high-temperature environmental simulation test, close valve on the cabin body steam line 09 of air-refrigeration system A and the cabin body return-air duct 10, start centrifugal blower 36 and electric heater 35, under the dynamic action that centrifugal blower 36 provides, air enters circulation air path 37 from centrifugal blower 36 air entries in the body of cabin, after electric heater 35 heating, enter the cabin body by counter balance pocket structure 33 in balanced ventilation mode from the top down again, thereby finish a closed cycle with even orifice plate.The heat that electric heater 35 produces has also taken in the cabin by circulating air, and passes to by test specimen by the convection heat transfer mode, realizes constant-pressure and high-temperature environmental simulation purpose.During the atmospheric low-temperature environmental simulation test, open valve on the cabin body steam line 09 of air-refrigeration system and the cabin body return-air duct 10, the cold air that is produced by air-refrigeration system can mix with recirculating air in the cabin by the circulation air path 37 that cabin body air supply pipe flange 17 enters temperature and pressure cabin C, enters the cabin body by the counter balance pocket structure 33 with even orifice plate in balanced ventilation mode from the top down.The cabin inner circulating air is except that entering circulation air path 37, also can enter the cabin body return-air duct 10 of air-refrigeration system A by cabin body muffler flange 18, promptly on the basic Recurrence Process of above-mentioned constant-pressure and high-temperature environmental simulation test, increased gas exchange process with air-refrigeration system A, thereby the cold that air-refrigeration system C produces is brought in the cabin, and pass to by test specimen 26 by the convection heat transfer mode, reach the purpose of atmospheric low-temperature environmental simulation.
In the C of this temperature and pressure cabin the another set of heat exchange circulation system we be referred to as the cold drawing circulation system, form by the four bulk cold drawing heat exchange structures 34 that are arranged in top, bottom and and arranged on left and right sides in the temperature and pressure cabin, insulation corrugated stainless steel tubing 38 and the cold drawing air supply pipe flange 19 and the cold drawing muffler flange 16 that lay respectively at below, body rear end face left side, cabin and top, right side; Every cold drawing heat exchange structure 34 wherein, gather pipe 42 by 1 air inlet, 20 arms 43 in parallel and 1 return-air gather pipe system and 1 copper plate 44 of managing 46 compositions and are welded, and evenly be pasted with high/low temp durable silica gel heat tape 45 between each arm of copper plate 44 upper and lowers, and the air inlet of every cold drawing heat exchange structure 34 gathers pipe 42 and gathers pipe 46 with return-air and link to each other with cold drawing muffler flange 18 with the cold drawing air supply pipe flange 19 of cabin body 31 respectively after passing temperature and pressure cabin C bulkhead, and be connected in the flange mode with the total return-air duct 08 of cold drawing with the total steam line 11 of the cold drawing of air-refrigeration system A, and then form the closed circulation system of air insulated in the complete and cabin by insulation corrugated stainless steel tubing 38;
This circulation system is mainly used in the maintenance of the high and low temperature environment under hypobaric process in the temperature and pressure cabin, and promptly when being the infrabar simulated environment in the temperature and pressure cabin, aforementioned cabin internal circulation system can not use, and must be converted to use this cold drawing circulation system.When utilizing this cold drawing circulation system to carry out under the infrabar hot environment simulation, mainly be to improve the temperature of cold drawing heat exchange structure, and then utilize the radiation heat transfer mode with environment in the heat transferred cabin and by test specimen 26 by the silica gel heat tape 45 that starts on the cold drawing heat exchange structure 34; When utilizing this cold drawing circulation system to carry out under the infrabar low temperature environment simulation, mainly be that the cold air that air-refrigeration system A produces is introduced this cold drawing circulation system, reduce the temperature of cold drawing heat exchange structure 34, and then utilize radiation heat transfer mode environment and taken away heat in the cabin by test specimen 26.
This C cabin, temperature and pressure cabin body 31 links to each other with the pump-line 14 of vacuum system B by cabin body exhaust tube flange 15, thereby can utilize vacuum system B to realize hypobaric simulation in the cabin; The two cover air heat exchange circulation systems in this C cabin, temperature and pressure cabin body 31, be the cabin internal circulation system with the cold drawing circulation system respectively the cabin body confession/return-air duct 09,10 by its cabin body confession/ muffler flange 17,18 and cold drawing confession/ muffler flange 19,16 and air-refrigeration system A and cold drawing always confession/return-air duct 11,10 link to each other, thereby the cold that can utilize air-refrigeration system A to provide is realized the low temperature environment simulation under normal pressure and two kinds of situations of infrabar;
In addition, centrifugal blower 36 blades adopt 16Mn (16 manganese) low-temperature steel manufacturing in this temperature and pressure cabin C circulation air path 37, its drive motor part then is placed on temperature and pressure out of my cabin, and transmission shaft passes the cabin body and adopts special sealing and insulation measure, to adapt to ultralow temperature and hypobaric in the C of temperature and pressure cabin; For preventing the low pressure discharge phenomenon, it is external that the binding post of electric heater 35 all is installed in the cabin; Pipeline and observing and controlling spool and extraneous pipeline be all by flange connection around the body of cabin, and around the flange heat tape is installed in case the O-ring seal temperature is crossed low icing with the crack between a door and its frame place; Scattering and disappearing of cold and hot amount that body doorway, cabin hangs PEF high-low temperature resistant door curtain when opening the door to reduce temperature shock test in the cabin.
This heat chamber D is common hot environment simulation test cabin.This heat chamber D is a body structure, and its rectangle cabin body 600 and square hatch door 609 all adopt internal insulation structure 606; Hatch door 609 is full-open type gate, the left and right sides, and big header is provided with automatic air air curtain 608, can start the heat interchange of inside and outside, cabin when opening the door with minimizing when door is opened automatically; Adopt on the even orifice plate in the cabin and send the system of cycle heat exchange next time, this cycle heat exchange system mainly by the circulation air path 602 that is arranged on cabin body 600 rear ends, be arranged on electric heater 603 and the circulating fan 604 in the circulation air path 602 and the counter balance pocket that comprises even AND DEWATERING FOR ORIFICE STRUCTURE 607 605 that links to each other with circulation air path 602 tops is formed, and be provided with automatic adjusting air-valve 601 on circulation air path top, be used for accurate control the cabin temperature.
This air-refrigeration system A is based on the positive boost type air-refrigeration system of tradition flow process.This air-refrigeration system A mainly comprises the electric heater 07 on boost type turboset 04, hydrocooler 05, regenerator 06, filtrator 401,402 and the loop.The high pressure dry air of being come by air compressor plant source of the gas 01 passes through the bearing portion that enters boost type turboset 04 after filtrator 401 further filters, and forms gas bearing structure; Pressure is further improved at the compressor position that enters boost type turboset 04 after the high pressure dry air of being come by air compressor plant source of the gas 02 further filters through filtrator 402, enter hydrocooler 05 cooling then, and by with regenerator 06 in the heat exchange of low temperature return-air further reduce temperature, the turbine position that enters boost type turboset 04 at last expands and externally acting, on the one hand merit is passed to the compressor position of turboset 04, air themperature is further reduced to desired cryogenic temperature on the other hand, realizes process of refrigerastion.Link to each other with the cabin body air supply pipe flange 17 that is arranged on temperature and pressure cabin C rear end face, cabin body muffler flange 18 and cold drawing air supply pipe flange 19, cold drawing muffler flange 16 respectively by cabin body steam line 09, cabin body return-air duct 10 and the total steam line 11 of cold drawing, the total return-air duct 08 of cold drawing respectively from the Cryogenic air of the turbine outlet of boost type turboset 04, be used to satisfy in the temperature and pressure cabin low temperature environment simulation needs under the normal pressure and two kinds of conditions of infrabar.For adapting to different flow demand under the different operating modes, be provided with bypass circulation especially on this air-refrigeration system return line, and on this bypass circulation, be provided with electric heater 07, be used to prevent that the cold airflow temperature from crossing low can cause damage to the air compressor plant compressor.
This vacuum system B is responsible for hypobaric simulation in the C cabin, temperature and pressure cabin, mainly is made up of vacuum pump 12, emptying pipe 13, pump-line 14, cabin body exhaust tube flange 15, electric control valve 501,502 and manual modulation valve 111,112; 12 one-tenth parallel waies of two vacuum pumps link to each other with a pump-line 14 and emptying pipe 13 altogether; 14 of vacuum pump 12 inlet ends and pump-lines are connected with an electric control valve 501 and a manual modulation valve 111, are used for the bleeding regulating amount; Pump-line 14 and 13 of another emptying pipes are in series with an electric control valve 502 and a manual modulation valve 112 simultaneously, are used to regulate air capacity; Pump-line 14 other ends link to each other with air in the cabin, temperature and pressure cabin by the cabin body exhaust tube flange 15 of temperature and pressure cabin C.
This Measurement and Control System F adopts the monitoring software of independent development, have flow process demonstration, real time data monitoring, historical data report and functions such as curve printing, fault alarm, and by adopting advanced fuzzy control strategy, improved major parameter curve tracking Control precision such as air-refrigeration system secondary speed and temperature and pressure cabin cryogenic temperature greatly, and the function of auto stop when having realized turbine device Auto Power On and fault;
Field control and computer remote control mode have comprehensively been adopted.Control system is made up of hardware components such as parameter measurement, device control, computing machine and data acquisition system (DAS), system console and safety guard and the software section that has functions such as management, monitoring, diagnosis accordingly.All measurement and control signal lines all link to each other with remote TT﹠C system by trench and then realize remote observing and controlling function in the whole device.The hardware of remote TT﹠C system is that the center is set up with the technical grade control computer, and then with Windows NT multithreading, the independent research of multi-job operation management platform, its main interface as shown in Figure 6 for software.It is by adopting multiple advanced control methods such as advanced adaptive control technology, leading expert control strategy and fuzzy control, realized multiple spot, the quick rejuvenation of temperature was accurate in the cabin when multi-parameter comprehensive was coordinated control, cabin temperature performance graph tracking Control, temperature shock test controls and the multinomial advanced control function such as start, cooling, insulation and shutdown whole-process automatic control of high rotating speed turboset, the observing and controlling level occupies leading domestic level.In addition; testing crew operation for convenience and system maintenance, this TT﹠C system also has real-time demonstration, printing and storage, historical data and the functions such as curve reproduction, overload alarm protection, self-test and self diagnosis of the two-way no disturbance switching of automatic/hand, experiment process, test parameters and curve.
The present invention is a kind of test apparatus of large-scaled environment simulation, its advantage and effect are: it integrates atmospheric low-temperature, constant-pressure and high-temperature, infrabar (highly), temperature one height and temperature shock totally five conventional environmental simulation test functions, the temperature and pressure cabin has high low temperature and infrabar multiparameter environmental simulation function, and compare with simple temperature shock environmental simulation test device is arranged earlier, the useful volume that this device provides for testing equipment is up to length * wide * height=5m * 2m * 2m.
(4) description of drawings:
Fig. 1 the present invention's process system process flow diagram.
Fig. 2 the present invention's quick transfer trajectory car group structural representation.
Fig. 3 A, 3B the present invention's temperature and pressure cabin structure synoptic diagram.
The cold drawing heat exchange structure synoptic diagram in Fig. 4 the present invention's temperature and pressure cabin.
Fig. 5 the present invention's heat chamber structural representation.
Fig. 6 the present invention's TT﹠C software master interface.
Fig. 7 the present invention's temperature and pressure cabin and heat chamber main performance index.
Number in the figure and letter are described as follows:
A air-refrigeration system B vacuum system C temperature and pressure cabin
The remote TT﹠C system of the quick transfer trajectory car of D heat chamber E group F
01 compressed air station source of the gas, 02 compressed air station source of the gas, 03 total return-air duct
04 boost type turboset, 05 hydrocooler, 06 regenerator
The total return-air duct 09 cabin body steam line of 07 electric heater, 08 cold drawing
Total steam line 12 vacuum pumps of 10 cabin body return-air duct 11 cold drawings
13 emptying pipes, 14 pump-lines, 15 cabin body exhaust tube flanges
16 cold drawing muffler flanges, 17 cabin body air supply pipe flanges, 18 cabin body muffler flanges
22 railcars 23 are regulated bolt 24 railcars top track
25 test specimen dollies 26 are by floor rail in test specimen 27 heat chambers
28 hatch doors, 29 view windows, 30 bearing arrangements
31 cabin bodies, 32 insulation constructions 33 are with even orifice plate counter balance pocket
34 cold drawing heat exchange structures, 35 electric heaters, 36 centrifugal blowers
37 circulation air paths, 38 insulation corrugated stainless steel tubings, 39 teflin rings
42 air inlets of 40 guide rails, 41 clamping bolts gather pipe
43 arm 44 copper plates 45 silica gel heat tapes in parallel
46 return-airs gather pipe
101,102,103,104,105,106,107,108,109,110,111,112 manual modulation valves
201,202,203,204 pneumatic control valves, 301 reduction valve
401,402 filtrators, 501,502 electric control valves
600 cabin bodies 601 are regulated air-valve 602 circulation air paths
603 electric heaters, 604 circulating fans, 605 counter balance pocket
606 internal insulation structures, 607 even AND DEWATERING FOR ORIFICE STRUCTURE 608 automatic air curtains
609 hatch doors
(5) embodiment:
A kind of test apparatus of large-scaled environment simulation of the present invention, see also shown in Figure 1ly, this device is made up of a cover air-refrigeration system A, a cover vacuum system B, temperature and pressure cabin C, heat chamber D, the quick transfer trajectory car group E of cover and the remote TT﹠C system F of a cover;
This air-refrigeration system A is substantially based on the positive boost type air-refrigeration system of tradition flow process.As shown in Figure 1, this air-refrigeration system A mainly is made up of compressed air station source of the gas 01,02, total return-air duct 03, boost type turboset 04, hydrocooler 05, regenerator 06, electric heater 07, the total return-air duct 08 of cold drawing, cabin body steam line 09, cabin body return-air duct 10, the total steam line 11 of cold drawing and pneumatic control valve, manual modulation valve, filtrator etc.;
Enter the bearing portion of boost type turboset 04 behind compressed air station source of the gas 01 serial connection manual modulation valve 101 and the filtrator 401, be connected in series a reduction valve 301 backs simultaneously and link to each other, for boost type turboset 04 forms gas bearing structure with emptying pipe 13;
Compressed air station source of the gas 02 serial connection manual modulation valve 102, filtrator 402, pneumatic control valve 201 backs connect the compressor position of boost type turboset 04, boost and be hydrocooler 05 and regenerator 06 between the compressor of unit 04 and turbine, the turbine outlet of boost type turboset 04 comprises three shunt, one the tunnel be connected in series a pneumatic control valve 202 after, be divided into total steam line 11 two-way of cabin body steam line 09 and cold drawing again, its middle deck body steam line 09 is connected with the cabin body air supply pipe flange 17 in temperature and pressure cabin by a manual variable valve 104 backs, and the total steam line 11 of cold drawing is connected with the cold drawing air supply pipe flange 19 in temperature and pressure cabin by a manual variable valve 106 backs; The turbine of boost type turboset 04 exports the second the tunnel for directly passing through regenerator 06 by a manual variable valve 107 backs; The turbine outlet Third Road of boost type turboset 04 is then by directly feeding the electric heater 07 on the pipeline of loop behind a manual variable valve 108 and the pneumatic control valve 203;
The turbine of boost type turboset 04 outlet first via air enters after the circulation of temperature and pressure cabin again respectively the cabin body muffler flange 18 by the temperature and pressure cabin, one manual variable valve 105 links to each other with cabin body return-air duct 10, cold drawing muffler flange 16 by the temperature and pressure cabin, one manual variable valve 103 links to each other with the total return line 08 of cold drawing, the two-way return air converges the back and exports the second road air with the turbine of boost type turboset 04 and converge in regenerator 06 porch, after enter regenerator 06, and further converge with the turbine outlet Third Road air of boost type turboset 04 in regenerator 06 and electric heater 07 exit, link to each other with the compressed air station suction port of compressor by the total return-air duct 03 of system with a manual variable valve 109 through a pneumatic control valve 204 at last, form the multiloop closed circulation system.
This air-refrigeration system A is responsible for the C low temperature environment simulation of temperature and pressure cabin cold is provided, and have two the cover air feed/return-air ducts, link to each other with the cold drawing circulation system with the cabin internal circulation system of temperature and pressure cabin C respectively, satisfy low temperature environment simulation needs under two kinds of situations of normal pressure and infrabar.The high pressure dry air of being come by air compressor plant source of the gas 01 passes through the bearing portion that enters boost type turboset 04 after filtrator 401 further filters, and forms gas bearing structure; Pressure is further improved at the compressor position that enters boost type turboset 04 after the high pressure dry air of being come by air compressor plant source of the gas 02 further filters through filtrator 402, enter hydrocooler 05 cooling then, and by with regenerator 06 in the heat exchange of low temperature return-air further reduce temperature, the turbine position that enters boost type turboset 04 at last expands and externally acting, on the one hand merit is passed to the compressor position of turboset 04, air themperature is further reduced to desired cryogenic temperature on the other hand, realizes process of refrigerastion.Link to each other with the cabin body air supply pipe flange 17 that is arranged on temperature and pressure cabin C rear end face, cabin body muffler flange 18 and cold drawing air supply pipe flange 19, cold drawing muffler flange 16 respectively by cabin body steam line 09, cabin body return-air duct 10 and the total steam line 11 of cold drawing, the total return-air duct 08 of cold drawing respectively from the Cryogenic air of the turbine outlet of boost type turboset 04, be used to satisfy in the temperature and pressure cabin low temperature environment simulation needs under the normal pressure and two kinds of conditions of infrabar.For adapting to different flow demand under the different operating modes, be provided with bypass circulation especially on this air-refrigeration system return line, and on this bypass circulation, be provided with electric heater 07, be used to prevent that the cold airflow temperature from crossing low can cause damage to the air compressor plant compressor.
This vacuum system B is responsible for hypobaric simulation in the C cabin, temperature and pressure cabin, mainly is made up of vacuum pump 12, emptying pipe 13, pump-line 14, cabin body exhaust tube flange 15, electric control valve 501,502 and manual modulation valve 111,112; 12 one-tenth parallel waies of two vacuum pumps link to each other with a pump-line 14 and emptying pipe 13 altogether; 14 of vacuum pump 12 inlet ends and pump-lines are connected with an electric control valve 501 and a manual modulation valve 111, are used for the bleeding regulating amount; Pump-line 14 and 13 of another emptying pipes are in series with an electric control valve 502 and manual modulation valve 112 points simultaneously, are used to regulate air capacity; Pump-line 14 other ends link to each other with air in the cabin, temperature and pressure cabin by the cabin body exhaust tube flange 15 of temperature and pressure cabin C.
This temperature and pressure cabin C is a body structure, and this temperature and pressure cabin C is a chief component of the present invention, sees also Fig. 3 A and Fig. 3 B, and this temperature and pressure cabin C has a cabin body 31 and a hatch door 28; The cabin body 31 of this temperature and pressure cabin C becomes body structure by large shape and the processing and manufacturing of channel-section steel reinforcement, and is docking end face and big flange welding formation circular port with hatch door 28; 28 of hatch doors are welded into spheroid shape by heavy steel plate, and docking end face and big flange welding with the cabin body, thereby four clamping bolts 41 form the flange docking mode with cabin body 31 around can utilizing hatch door, and rely on the teflin ring 39 that is fixed on the cabin body butt joint end face to improve Butt sealing; Hatch door 28 utilizes top axle bearing structure 30 to hang on cabin body 31 head rail 40 of temperature and pressure cabin C, can manually finish side direction high-speed switch process; The view window 29 that is positioned at hatch door 28 centers vacuumizes glass structure for multilayer; Cabin body 31 and hatch door 28 all adopt internal insulation structure 32, form with the polyurethane foam method, and in the inner face riveting of heat-insulation layer cabin with the metal coating decorative panel.
Also comprise two in the C of this temperature and pressure cabin and buy or get by illegal means heat circulating system, one cover is the cabin internal circulation system, mainly by be arranged in the counter balance pocket structure 33 of body 31 upper ends in cabin, be arranged in the circulation air path 37 of cabin body 31 rear ends with even orifice plate, the cabin body muffler flange 18 that is arranged in centrifugal blower 36, electric heater 35 and the cabin body air supply pipe flange 17 in the circulation air path and is positioned at cabin body 31 rear end face side-lowers is formed, and cabin body air supply pipe flange 17 links to each other with cabin body return-air duct 10 with the cabin body steam line 09 of air-refrigeration system A with flange connection respectively with cabin body muffler flange 18.
This circulation system is mainly used in high temperature or low temperature environment simulation test procedure under the interior atmospheric pressure environment of temperature and pressure cabin C.During the constant-pressure and high-temperature environmental simulation test, close valve on the cabin body steam line 09 of air-refrigeration system A and the cabin body return-air duct 10, start centrifugal blower 36 and electric heater 35, under the dynamic action that centrifugal blower 36 provides, air enters circulation air path 37 from centrifugal blower 36 air entries in the body of cabin, after electric heater 35 heating, enter the cabin body by counter balance pocket structure 33 in balanced ventilation mode from the top down again, thereby finish a closed cycle with even orifice plate.The heat that electric heater 35 produces has also taken in the cabin by circulating air, and passes to by test specimen by the convection heat transfer mode, realizes constant-pressure and high-temperature environmental simulation purpose.During the atmospheric low-temperature environmental simulation test, open valve on the cabin body steam line 09 of air-refrigeration system and the cabin body return-air duct 10, the cold air that is produced by air-refrigeration system can enter circulation air path 37 by cabin body air supply pipe flange 17 to be mixed with recirculating air in the cabin, enters the cabin body by the counter balance pocket structure 33 with even orifice plate in balanced ventilation mode from the top down.The cabin inner circulating air is except that entering circulation air path 37, also can enter the cabin body return-air duct 10 of air-refrigeration system A by cabin body muffler flange 18, promptly on the basic Recurrence Process of above-mentioned constant-pressure and high-temperature environmental simulation test, increased gas exchange process with air-refrigeration system A, thereby the cold that air-refrigeration system C produces is brought in the cabin, and pass to by test specimen 26 by the convection heat transfer mode, reach the purpose of atmospheric low-temperature environmental simulation.
In the C of this temperature and pressure cabin the another set of heat exchange circulation system we be referred to as the cold drawing circulation system, form by the four bulk cold drawing heat exchange structures 34 that are arranged in top, bottom and and arranged on left and right sides in the temperature and pressure cabin, insulation corrugated stainless steel tubing 38 and the cold drawing air supply pipe flange 19 and the cold drawing muffler flange 16 that lay respectively at below, body rear end face left side, cabin and top, right side.Wherein every cold drawing heat exchange structure 34 detailed structure as shown in Figure 4, gather 42,20 arms 43 in parallel of pipe and 1 return-air gathers pipe 46 pipe systems of forming and 1 copper plate 44 is welded by 1 air inlet, and evenly be pasted with high/low temp durable silica gel heat tape 45 between each arm of copper plate 44 upper and lowers.And the air inlet of every cold drawing heat exchange structure 34 gathers pipe 42 and gathers pipe 46 with return-air and link to each other with cold drawing muffler flange 18 with the cold drawing air supply pipe flange 19 of cabin body 31 respectively after passing temperature and pressure cabin C bulkhead, and be connected in the flange mode with the total return-air duct 08 of cold drawing with the total steam line 11 of the cold drawing of air-refrigeration system A, and then form the closed circulation system of air insulated in the complete and cabin by insulation corrugated stainless steel tubing 38;
This circulation system is mainly used in the maintenance of the high and low temperature environment under hypobaric process in the temperature and pressure cabin, and promptly when being the infrabar simulated environment in the temperature and pressure cabin, aforementioned cabin internal circulation system can not use, and must be converted to use this cold drawing circulation system.When utilizing this cold drawing circulation system to carry out under the infrabar hot environment simulation, mainly be to improve the temperature of cold drawing heat exchange structure, and then utilize the radiation heat transfer mode with environment in the heat transferred cabin and by test specimen 26 by the silica gel heat tape 45 that starts on the cold drawing heat exchange structure 34; When utilizing this cold drawing circulation system to carry out under the infrabar low temperature environment simulation, mainly be that the cold air that air-refrigeration system A produces is introduced this cold drawing circulation system, reduce the temperature of cold drawing heat exchange structure 34, and then utilize radiation heat transfer mode environment and taken away heat in the cabin by test specimen 26.
This C cabin, temperature and pressure cabin body 31 links to each other with the pump-line 14 of vacuum system B by cabin body exhaust tube flange 15, thereby can utilize vacuum system B to realize hypobaric simulation in the cabin; The two cover air heat exchange circulation systems in this C cabin, temperature and pressure cabin body 31, be the cabin internal circulation system with the cold drawing circulation system respectively the cabin body confession/return-air duct 09,10 by its cabin body confession/ muffler flange 17,18 and cold drawing confession/ muffler flange 19,16 and air-refrigeration system A and cold drawing always confession/return-air duct 11,10 link to each other, thereby the cold that can utilize air-refrigeration system A to provide is realized the low temperature environment simulation under normal pressure and two kinds of situations of infrabar;
In addition, centrifugal blower 36 blades adopt 16Mn (16 manganese) low-temperature steel manufacturing in this temperature and pressure cabin C circulation air path 37, its drive motor part then is placed on temperature and pressure out of my cabin, and transmission shaft passes the cabin body and adopts special sealing and insulation measure, to adapt to ultralow temperature and hypobaric in the C of temperature and pressure cabin; For preventing the low pressure discharge phenomenon, it is external that the binding post of electric heater 35 all is installed in the cabin; Pipeline and observing and controlling spool and extraneous pipeline be all by flange connection around the body of cabin, and around the flange heat tape is installed in case the O-ring seal temperature is crossed low icing with the crack between a door and its frame place; Scattering and disappearing of cold and hot amount that body doorway, cabin hangs PEF high-low temperature resistant door curtain when opening the door to reduce temperature shock test in the cabin.
This heat chamber D is common hot environment simulation test cabin.As shown in Figure 5, this heat chamber D is a body structure, and its rectangle cabin body 600 and square hatch door 609 all adopt internal insulation structure 606; Hatch door 609 is full-open type gate, the left and right sides, and big header is provided with automatic air air curtain 608, can start the heat interchange of inside and outside, cabin when opening the door with minimizing when door is opened automatically; Adopt on the even orifice plate in the cabin and send the system of cycle heat exchange next time, this cycle heat exchange system mainly by the circulation air path 602 that is arranged on cabin body 600 rear ends, be arranged on electric heater 603 and the circulating fan 604 in the circulation air path 602 and the counter balance pocket that comprises even AND DEWATERING FOR ORIFICE STRUCTURE 607 605 that links to each other with circulation air path 602 tops is formed, and be provided with automatic adjusting air-valve 601 on circulation air path top, be used for accurate control the cabin temperature.
This quick transfer trajectory car group E by ground rail 21 between floor rail 27, heat chamber and temperature and pressure cabin, railcar 22 in floor rail 20, the heat chamber in the temperature and pressure cabin, regulate bolt 23, railcar top track 24 and test specimen dolly 25 and form; Wherein railcar 22 lower ends are provided with four wheels, can roll fast on ground rail 21 between two cabins; The railcar top is provided with two railcar top tracks 24, be connected by four adjusting bolts 23 between this railcar top track 24 and railcar 22 car bodies, and the vertical direction height of this railcar of scalable top track 24, guarantee the square cone of its two ends head can be respectively with temperature and pressure cabin C and heat chamber D two cabins in the square hollow-core construction of floor rail 20,27 heads connect; On the test specimen dolly 25 transverse plane for carrying by test specimen 26, the lower end be provided with four wheels can be above railcar track 24, or rolling fast on the floor rail 20,27 two cabins in, thus together with the quick transfer process of being finished by test specimen between heat chamber and temperature and pressure cabin.
This Measurement and Control System F has comprehensively adopted field control and computer remote control mode.Control system is made up of hardware components such as parameter measurement, device control, computing machine and data acquisition system (DAS), system console and safety guard and the software section that has functions such as management, monitoring, diagnosis accordingly.All measurement and control signal lines all link to each other with remote TT﹠C system by trench and then realize remote observing and controlling function in the whole device.The hardware of remote TT﹠C system is that the center is set up with the technical grade control computer, and then with Windows NT multithreading, the independent research of multi-job operation management platform, its main interface as shown in Figure 6 for software.It is by adopting multiple advanced control methods such as advanced adaptive control technology, leading expert control strategy and fuzzy control, realized multiple spot, the quick rejuvenation of temperature was accurate in the cabin when multi-parameter comprehensive was coordinated control, cabin temperature performance graph tracking Control, temperature shock test controls and the multinomial advanced control function such as start, cooling, insulation and shutdown whole-process automatic control of high rotating speed turboset, the observing and controlling level occupies leading domestic level.In addition; testing crew operation for convenience and system maintenance, this TT﹠C system also has real-time demonstration, printing and storage, historical data and the functions such as curve reproduction, overload alarm protection, self-test and self diagnosis of the two-way no disturbance switching of automatic/hand, experiment process, test parameters and curve.
A kind of test apparatus of large-scaled environment simulation of the present invention, this device are realized atmospheric low-temperature, constant-pressure and high-temperature, infrabar (highly), temperature-height and temperature shock, and the concrete grammar of totally five kinds of conventional environmental simulations is as follows:
1) atmospheric low-temperature environmental simulation
Atmospheric low-temperature (normal temperature～-85 ℃) environmental simulation is mainly realized jointly by air-refrigeration system A, temperature and pressure cabin C and remote TT﹠C system F.At first, open valve on the cabin body steam line 09 of air-refrigeration system and the cabin body return-air duct 10, the cold air that is produced by air-refrigeration system A can mix with recirculating air in the cabin by the circulation air path 37 that cabin body air supply pipe flange 17 enters temperature and pressure cabin C, and enters the cabin body by the counter balance pocket structure 33 with even orifice plate in balanced ventilation mode from the top down.The cabin inner circulating air is except that entering circulation air path 37, also can enter the cabin body return-air duct 10 of air-refrigeration system A by cabin body muffler flange 18, thereby the cold that air-refrigeration system A produces is brought in the cabin, and pass to by test specimen 26 by the convection heat transfer mode, reach the purpose of atmospheric low-temperature environmental simulation.
When carrying out the atmospheric low-temperature environmental simulation test in the C of temperature and pressure cabin, TT﹠C system F is responsible for setting temperature simulation value in the C of temperature and pressure cabin, and mainly pass through remote boost type turboset outlet air temperature and air demand of regulating turbine outlet pneumatic control valve 202 valve openings control air-refrigeration system A, and then other experiment monitoring functions such as the auto-control of the interior environment temperature of realization temperature and pressure cabin C and experimental data access.
2) constant-pressure and high-temperature environmental simulation
The constant-pressure and high-temperature environmental simulation all can realize in temperature and pressure cabin C and heat chamber D, and can independently carry out or carry out simultaneously all can.Wherein, can realize constant-pressure and high-temperature (normal temperature～+ 60 ℃) environmental simulation test in the C of temperature and pressure cabin, at first close valve on the cabin body steam line 09 of air-refrigeration system A and the cabin body return-air duct 10, start centrifugal blower 36 and electric heater 35 then, under the dynamic action that centrifugal blower 36 provides, air enters circulation air path 37 from centrifugal blower 36 air entries in the body of cabin, after electric heater 35 heating, enter the cabin body by counter balance pocket structure 33 in balanced ventilation mode from the top down again with even orifice plate, thereby finish a closed cycle, the heat that electric heater 35 produces has also taken in the cabin by circulating air, and pass to by test specimen by the convection heat transfer mode, realize constant-pressure and high-temperature environmental simulation purpose.
Can realize constant-pressure and high-temperature (normal temperature～+ 75 ℃) environmental simulation test in the heat chamber D, promptly start circulating fan 604 and electric heater 603, under the dynamic action that circulating fan 604 provides, air enters circulation air path 602 from circulating fan 604 air entries in the body of cabin, after electric heater 603 heating, enter the cabin body by counter balance pocket 605 in balanced ventilation mode from the top down again with even AND DEWATERING FOR ORIFICE STRUCTURE 607, thereby finish a closed cycle, the heat that electric heater 603 produces has also taken in the cabin by circulating air, and pass to by test specimen by the convection heat transfer mode, realize constant-pressure and high-temperature environmental simulation purpose.
When carrying out the constant-pressure and high-temperature environmental simulation test in temperature and pressure cabin C or the heat chamber D, TT﹠C system F is responsible for setting temperature simulation value in temperature and pressure cabin C and the heat chamber D, and main by remote method of regulating the heating power of electric heater 35,603 in two cabins, realization is to other experiment monitoring functions such as the auto-control of environment temperature in two cabins and experimental data access.
3) infrabar (highly) environmental simulation
Infrabar (highly) environment (normal pressure～4.3kPa) mainly finished jointly by temperature and pressure cabin C, vacuum system B and TT﹠C system F by simulation.During test, need close on the cabin body steam line 09, cabin body return-air duct 10 of the hatch door 28 of temperature and pressure cabin C and air-refrigeration system A manually control valve 104,105, open manual modulation valve 111,112 on the exhaust pipe 14 of vacuum system B simultaneously, and then start vacuum pump 12 to reduce temperature and pressure cabin C internal pressure.Therebetween, TT﹠C system F is responsible for setting the temperature and pressure cabin C internal pressure analogue value, and by motor regulated valve 501,502 valve opening bleeding regulating amount and air compensations on the exhaust pipe of remote adjusting vacuum system B, realize the auto-control of infrabar pressure in the C cabin, temperature and pressure cabin, and remote monitor experiential function such as experimental data access, finish infrabar (highly) environmental simulation test.
4) temperature-height environmental simulation
Temperature-height environmental simulation comprises that (85 ℃～normal temperature, (the two all can realize low temperature-infrabar (highly) environment for normal temperature～+ 60 ℃, two kinds of the simulations of normal pressure～4.3kPa) for the simulation of normal pressure～4.3kPa) and high temperature-infrabar (highly) environment in the temperature and pressure cabin.
Wherein, low temperature-infrabar (highly) environmental simulation has fully utilized infrabar (highly) environmental simulation and two kinds of simulation systems of atmospheric low-temperature environmental simulation and analogy method in the above-mentioned temperature and pressure cabin, is promptly mainly finished jointly by temperature and pressure cabin C, air-refrigeration system A, vacuum system B and TT﹠C system F.During concrete test, can be at first in the C of temperature and pressure cabin, reach the atmospheric low-temperature simulated environment according to the method and the step of atmospheric low-temperature environmental simulation in the above-mentioned temperature and pressure cabin C; Then, need close on the cabin body steam line 09 of air-refrigeration system A and the cabin body return-air duct 10 manually control valve 104,105, open on the total steam line 11 of cold drawing of air-refrigeration system A and the total return-air duct 08 of cold drawing manually control valve 106,103 simultaneously, thereby the cold air that air-refrigeration system A is produced switches to the cold drawing circulation system from C cabin, temperature and pressure cabin internal circulation system, continues to keep low temperature environment in the C of temperature and pressure cabin; At last, according to infrabar (highly) environmental simulation method and step in the above-mentioned temperature and pressure cabin C, start vacuum system B and reduce C cabin, temperature and pressure cabin internal pressure to set pressure.
In the above-mentioned whole process, TT﹠C system F is responsible for setting the temperature and the pressure environment analogue value in the C of temperature and pressure cabin, and it is main by regulating boost type turboset outlet air temperature and the air demand of turbine outlet pneumatic control valve 202 valve openings control air-refrigeration system A simultaneously at a distance, and motor regulated valve 501 on the exhaust pipe of vacuum system B, 502 valve opening bleeding regulating amount and air compensations, the auto-control of temperature and infrabar pressure in the realization C cabin, temperature and pressure cabin, and remote monitor experiential function such as experimental data access, and then in the C of temperature and pressure cabin, finish low temperature---the hypobaric simulation test.
High temperature-infrabar (highly) environmental simulation has fully utilized infrabar (highly) environmental simulation and two kinds of simulation systems of constant-pressure and high-temperature environmental simulation and analogy method in the above-mentioned temperature and pressure cabin, is promptly mainly finished jointly by temperature and pressure cabin C, vacuum system B and TT﹠C system F.During concrete test, can be at first in the C of temperature and pressure cabin, reach the constant-pressure and high-temperature simulated environment according to the method and the step of constant-pressure and high-temperature environmental simulation in the above-mentioned temperature and pressure cabin C; Then, need close centrifugal blower 36 and electric heater 35 in the C of temperature and pressure cabin, be silica gel heat tape 45 power supplies on the cold drawing heat exchange structure 34 of temperature and pressure cabin C simultaneously, is used to continue to keep the interior hot environment of temperature and pressure cabin C; At last, according to infrabar (highly) environmental simulation method and step in the above-mentioned temperature and pressure cabin C, start vacuum system B and reduce C cabin, temperature and pressure cabin internal pressure to set pressure.
In the above-mentioned whole process, TT﹠C system F is responsible for setting the temperature and the pressure environment analogue value in the C of temperature and pressure cabin, and main heating power by electric heater 35 and silica gel heat tape 45 in remote adjusting of the while temperature and pressure cabin C, and and the exhaust pipe of vacuum system B on motor regulated valve 501,502 valve opening bleeding regulating amount and air compensations, the auto-control of temperature and infrabar pressure in the realization C cabin, temperature and pressure cabin, and remote monitor experiential function such as experimental data access, and then in the C of temperature and pressure cabin, finish high temperature---the hypobaric simulation test.
5) temperature shock environmental simulation
The temperature shock environmental simulation test is the adaptability when determining test specimen atmospheric temperature sharply changing around, after requiring test specimen in ℃ hot environment temperature of normal pressure+70, to keep certain hour, (be not more than 1min) at the appointed time and be transformed in the normal pressure-55 ℃ low temperature environment and keep certain hour, be transformed into normal pressure+70 ℃ hot environment then equally more fast, so three of repetitive cycling are more than the cycle, thus the heatproof degree impact property of check test specimen.
The temperature shock environmental simulation is finished jointly by the whole device of the present invention.Wherein, the high and low temperature environment of normal pressure+70 ℃ and normal pressure-55 ℃ realizes in heat chamber D and temperature and pressure cabin C respectively, in specific implementation method and step and the above-mentioned heat chamber D in constant-pressure and high-temperature environmental simulation and the temperature and pressure cabin C atmospheric low-temperature environmental simulation identical.The quick transfer trajectory car group E of this device is responsible for by the quick conversion of test specimen 26 between heat chamber D and low temperature chamber C, promptly be placed on the test specimen dolly 25 of quick transfer trajectory car group E by test specimen, test specimen dolly 25 is placed on the railcar 22 top tracks 24, thereby can be by railcar 22 fast moving on ground rail 21 between two cabins, to be transferred to another body doorway, cabin fast from body doorway, a cabin by test specimen 26, and then can be together with from railcar 22 top tracks 24, being transformed into heat chamber D fast by test specimen 26, floor rail 27 in the cabin, temperature and pressure cabin, on 20, in the promptly corresponding experimental cabin body.In the entire test, TT﹠C system F is responsible for simultaneously in the auto-control heat chamber D and temperature and pressure cabin C temperature and returns in the shortest time and continue to keep the high and low temperature that requires.
Need before the temperature shock test at first will be placed on the test specimen dolly 25 of fast railway car group E by test specimen 26, and place simultaneously between heat chamber D and temperature and pressure cabin C on the ground rail 21, and close the hatch door 609,28 of heat chamber D and temperature and pressure cabin C, according to the concrete test methods and procedures of atmospheric low-temperature environmental simulation in constant-pressure and high-temperature environmental simulation in the above-mentioned heat chamber D and the temperature and pressure cabin C, make to reach respectively in two cabins and remain on desired high and low temperature setting value.Then, open heat chamber D hatch door 609 fast, test specimen dolly 25 together with on being transformed into floor rail 27 in the heat chamber D by test specimen 26 fast from railcar 22 upper end tracks 24, is entered in the heat chamber D in the hot environment, and quick closedown heat chamber D hatch door 609.The automatic air air curtain 608 of heat chamber D hatch door 609 opening process heat chamber D can start automatically, to reduce the heat leak that opened door causes.
After the hot environment that requires reaches required time in heat chamber D by test specimen 26, then at first open heat chamber D hatch door 609, to be moved to the railcar 22 upper end tracks 24 of quick transfer trajectory car group E by test specimen 26 from the cabin inner orbit 27 of heat chamber D by test specimen dolly 25, close heat chamber D hatch door 609 simultaneously, open low temperature chamber C hatch door 28, by quick transfer trajectory car group E with test specimen dolly 25 together with being transferred to fast by test specimen 26 on the cabin inner orbit 20 of temperature and pressure cabin C, and quick closedown temperature and pressure cabin C hatch door 28, and then finish the quick transfer process from heat chamber D to temperature and pressure cabin C (being not more than a minute) by test specimen 26.
After in the C of temperature and pressure cabin, being required to reach required time in the low temperature environment, utilize above-mentioned fast conversion method will be transformed into fast the hot environment of heat chamber D by the low temperature environment of test specimen 26 equally from temperature and pressure cabin C by quick transfer trajectory car group E by test specimen 25.So three of repetitive cycling can be finished the temperature shock environmental simulation test more than the cycle.After the off-test, can will in experimental cabin, be pulled out by test specimen 26, can carry out various Performance Detection analyses to test specimen in recovery under the atmospheric environment condition and after being stabilized to normal temperature by test specimen dolly 25.
Claims (2)
1, a kind of integrated environment simulation test device is characterized in that; This device includes the heat chamber (D) of a temperature range in normal temperature～+ 75 ℃, a cover air-refrigeration system (A), a cover vacuum system (B), a cover remote TT﹠C system (F), pressure limit in a normal pressure～4.3kPa and temperature range temperature and pressure cabin (C) and the cover quick transfer trajectory car group (E) at-85 ℃～+ 60 ℃;
This quick transfer trajectory car group (E) is arranged between two cabins of heat chamber (D) and temperature and pressure cabin (C) on the ground, and this railcar group is responsible for by the quick conversion of test specimen (26) between temperature and pressure cabin (C) and heat chamber (D) two cabin environment; Temperature and pressure cabin (C) provides temperature range in the hypobaric simulation at normal pressure～4.3kPa of-85 ℃～+ 60 ℃ low, high temperature and pressure limit simultaneously, heat chamber (D) provides the hot environment simulation in normal temperature～+ 75 ℃ of normal pressure and temperature range, and two cabins and transfer trajectory car group (E) acting in conjunction fast realize under the normal pressure-55 ℃～+ 70 ℃ temperature shock environmental simulation; This vacuum system (B) is responsible for the hypobaric simulation of normal pressure～4.3kPa in the cabin, temperature and pressure cabin (C); The low temperature environment simulation that air-refrigeration system (A) is responsible for temperature and pressure cabin (C) normal temperature～-85 ℃ provides cold, and have two the cover air feed/return-air ducts, link to each other with the cold drawing circulation system with cabin, temperature and pressure cabin (C) internal circulation system respectively, satisfy the low temperature environment simulation needs of normal temperature～-85 under two kinds of situations of normal pressure and 4.3kPa infrabar ℃; Heat chamber is under atmospheric pressure environment, temperature range in normal temperature～+ 75 ℃ and the temperature and pressure cabin under atmospheric pressure environment, the hot environment simulation of temperature range in normal temperature～+ 60 ℃ all adopted electric heater (603) and centrifugal blower (604) is set in the circulation air path (602), and air supply mode is realized on the cooperation orifice plate, and during ℃ hot environment simulation of 4.3kPa infrabar in the temperature and pressure cabin, normal temperature～+ 60, mainly rely on the cold drawing heat exchange structure (34) silica gel heat tape (45) to keep in the radiation heat transfer mode in the cabin in; All measurement and control signal lines all link to each other with remote TT﹠C system (F) and then realize remote observing and controlling function;
This temperature and pressure cabin (C) is a body structure, has a cabin body (31) and a hatch door (28), and this cabin body (31) becomes body structure by steel and the processing and manufacturing of channel-section steel reinforcement, and is docking end face and flange welding formation circular port with hatch door (28); Hatch door (28) then is welded into spheroid shape by steel plate, and docking the welding of end face and flange with the cabin body, thereby four clamping bolts (41) form the flange docking mode with cabin body (31) around can utilizing hatch door, and rely on the teflin ring (39) that is fixed on the cabin body butt joint end face to improve Butt sealing; Hatch door (28) utilizes top axle bearing structure (30) to hang on cabin body (31) head rail (40) in temperature and pressure cabin (C), can manually finish side direction high-speed switch process; The view window (29) that is positioned at hatch door (28) center vacuumizes glass structure for multilayer; Cabin body (31) and hatch door (28) all adopt internal insulation structure (32), form with the polyurethane foam method, and in the inner face riveting of heat-insulation layer cabin with the metal coating decorative panel; This place, cabin body (31) doorway hangs PEF high-low temperature resistant door curtain, the top is provided with and is with even orifice plate counter balance pocket (33) in this cabin body (31), this interior rear end of cabin body (31) is provided with circulation air path (37), be provided with electric heater (35), centrifugal blower (36) in this circulation air path (37), be provided with in this cabin body (31) for floor rail (20) in the temperature and pressure cabin of test specimen dolly (25) operation;
Comprise the two cover air heat exchange circulation systems in this temperature and pressure cabin (C), one cover is for the cabin internal circulation system, by being with even orifice plate counter balance pocket structure (33), circulation air path (37), centrifugal blower (36), electric heater (35), cabin body air supply pipe flange (17) and cabin body muffler flange (18) to form; Its cabin body air supply pipe flange (17) and cabin body muffler flange (18) link to each other with cabin body return-air duct (10) with the cabin body steam line (09) of air-refrigeration system (A) with flange connection respectively; This circulation system is mainly used in constant-pressure and high-temperature environmental simulation and atmospheric low-temperature environmental simulation test process in the temperature and pressure cabin;
Another set of is the cold drawing circulation system, is made up of the four bulk cold drawing heat exchange structures (34), cold drawing air supply pipe flange (19) and the cold drawing muffler flange (18) that are arranged in top, bottom and and arranged on left and right sides in the temperature and pressure cabin; Wherein every cold drawing heat exchange structure (34) gathers pipe (42) by 1 air inlet again, 20 arms in parallel (43) and 1 return-air gather pipe system and 1 copper plate (44) that pipe (46) forms and are welded, and evenly be pasted with high/low temp durable silica gel heat tape (45) between each arm of copper plate (44) upper and lower, and the air inlet of every cold drawing heat exchange structure (34) gathers pipe (42) and return-air and gathers and be connected in the flange mode with the total return-air duct of cold drawing (08) with the total steam line of cold drawing (11) of air-refrigeration system (A) by insulation corrugated stainless steel tubing (38) respectively after pipe (46) passes temperature and pressure cabin (C) bulkhead, and then form one fully with the cabin in the closed circulation system of air insulated, this circulation system is mainly used in the maintenance of the high and low temperature environment under hypobaric process in the temperature and pressure cabin;
This temperature and pressure cabin (C) cabin body (31) links to each other with the pump-line (14) of vacuum system (B) by cabin body exhaust tube flange (15), thereby can utilize vacuum system (B) to realize hypobaric simulation in the cabin;
This quick transfer trajectory car group (E) by the ground rail (21) between the interior floor rail in temperature and pressure cabin (C) (20), the interior floor rail of heat chamber (D) (27), heat chamber (D) and temperature and pressure cabin (C), railcar (22), railcar top track (24), regulate bolt (23) and test specimen dolly (25) is formed; Be provided with four wheels in railcar (22) lower end, railcar (22) top is provided with two railcar top tracks (24), be connected with four adjusting bolts (23) between this railcar top track (24) and railcar (22) car body, and then the vertical direction height of this railcar of scalable top track (24), guarantee the square cone of its two ends head can be respectively with temperature and pressure cabin (C) and heat chamber (D) two cabins in the square hollow-core construction of head of floor rail (20), (27) connect; Test specimen dolly (25) is gone up transverse plane for carrying by test specimen (26), the lower end is provided with four wheels can go up operation by track (24) above railcar, or floor rail (27), (20) are gone up rolling, thereby are shifted together with being finished between two cabins by test specimen (26) in two cabins;
Wherein, the useful volume of this heat chamber (D) is length * wide * height=5m * 2m * 2m;
Wherein, the useful volume in this temperature and pressure cabin (C) is length * wide * height=5m * 2m * 2m.
2, a kind of integrated environment simulation test device according to claim 1 is characterized in that: the spacing of this heat chamber (D) and temperature and pressure cabin (C) door t door is 10 meters and be arranged in parallel.
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