CN101799515A - Large multifunctional environmental simulator for electrical test - Google Patents

Large multifunctional environmental simulator for electrical test Download PDF

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Publication number
CN101799515A
CN101799515A CN 201010133365 CN201010133365A CN101799515A CN 101799515 A CN101799515 A CN 101799515A CN 201010133365 CN201010133365 CN 201010133365 CN 201010133365 A CN201010133365 A CN 201010133365A CN 101799515 A CN101799515 A CN 101799515A
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China
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pipeline
water
environmental
connects
rain
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CN 201010133365
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Chinese (zh)
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CN101799515B (en
Inventor
王浚
范建斌
黄勇
宿志一
周军
刘旺开
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北京航空航天大学
中国电力科学研究院
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Publication of CN101799515A publication Critical patent/CN101799515A/en
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Abstract

The invention relates to a large multifunctional environmental simulator for electrical tests, which comprises an environmental stimulation chamber and is characterized in that an air heat-exchange circulation system and an ice-melting system are arranged in the environmental stimulation chamber; and the environmental stimulation chamber further comprises an ice-coating, rain-exposing and ultrasonic-atomizing system, a water treatment system, a heat-fogging system, a cooling water circulation system, a refrigeration system, a vacuuming and defogging system, a measurement and control system and an ultra-high voltage power supply system for providing a high-voltage charging state for test-pieces. By achieving the skillful coordination among the systems and the uniform operation control by the measurement and control system, the large multifunctional environmental simulator integrates various testing functions of environmental simulations, such as high-altitude, ice-coating, contamination, rain-exposing and other simulations into a whole. Therefore, the invention is widely suitable for the testing process for large multi-parameter environmental simulations.

Description

A kind of large multifunctional environmental simulator that is used for electrical test
Technical field
The present invention relates to a kind of environment simulator, particularly about a kind of large multifunctional environmental simulator that is used for electrical test.
Background technology
When industrial or agricultural developed rapidly, the pollution of atmospheric environment is aggravation thereupon also.The complicated meteorology and the environment of pollution can make the electrical strength of insulator obviously descend, and cause the flashover of insulator chain, and then cause the massive blackout accident.In addition because electricity needs constantly increases, and UHV transmission becomes the important means that promotes China's electric network transportation ability, and extra high voltage line will be higher than high-tension line to the requirement of reliability.Under the extra-high voltage state, the stain discharge problem of insulator in varying environment is extremely important to design, safe operation and the development of electric system, this also is an important consideration factor of selecting the external insulation level, therefore, be necessary to further investigate, improve the electrical strength of insulator under the IFR conditions and the safety of high altitude localities UHV transmission line operation at this problem.
At present, in order to study the flashover property of contaminated insulator, not only the operation conditions of transmission line of electricity long-term investigation and analysis have been carried out both at home and abroad, also the relation of insulator between the flashover voltage under the filthy state or withstand voltage and filthy degree, air pressure etc. carried out long term studies, analyzed the factor that influences Flashover Characteristics of Polluted Insulators from the angle of test.Yet present environmental simulation experimental facilities both domestic and external mainly is to simulate at single meteorological condition, although some integrated environment analogue experiment installations are arranged, these devices are also comprehensive inadequately to the simulation of IFR conditions.The disclosed a kind of multifunctional artificial climate room system of prior art for example, though can the high height above sea level of manual simulation, meteorological condition such as icing, filth, but lack independently ice melting system, it only relies on breadboard temperature control system to realize ice-melt, not only energy consumption is big, cost is high, and wayward ice-melt speed.In addition, the artificial climate tank volume that is used for electric experiment of present domestic development is less, can't satisfy the research to UHV (ultra-high voltage), extra-high voltage insulator and large-scale insulator chain flashover property.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of multiple environmental simulation system that integrates, can satisfy the large multifunctional environmental simulator that is used for electrical test that super, the large-scale insulator arc-over characteristic of extra-high voltage are studied.
For achieving the above object, the present invention takes following technical scheme: a kind of large multifunctional environmental simulator that is used for electrical test, it comprises an environmental capsule, it is characterized in that: be provided with an air heat exchange circulation system and an ice melting system in the described environmental capsule, described environmental capsule comprises also that an icing is drenched with rain and ultrasonic atomization system, a water treatment system, a hot mist system, a cooling water recirculation system, a refrigeration system, vacuumizes and fog discharge system, a TT﹠C system and one provide the extra-high voltage power-supply system of electrification in high voltage state for test specimen; The described air heat exchange circulation system comprises and is arranged on two air channels that described environmental capsule is close to the inwall place, the below in described two air channels is provided with a return air inlet respectively, the top in described two air channels connects an air-supply orifice plate, evenly be provided with some wind pushing holes on the described air-supply orifice plate, the interior bottom in described two air channels is provided with a cold wind unit respectively; Described ice melting system comprises the heat radiation lamp of at least two groups that are disposed on described environmental capsule inwall; Described drench with rain icing and ultrasonic atomization system comprise and are arranged on described environmental capsule outside, three reserve tanks in parallel, the water inlet end of described three reserve tanks connects the outlet conduit of described water treatment system, the water side connects a constant temperature water tank, described constant temperature water tank connects a water pump assembly, the pipeline that described water pump assembly comes out connects side by side the pipeline of drenching with rain, an one cold mist pipeline and an icing water pipeline, the other end of the described pipeline of drenching with rain is connected on the rain row who is arranged on described environmental capsule inside, the other end of described cold mist pipeline is connected on the cold atomizing nozzle that described environmental capsule inwall is provided with at interval, and the other end of described icing water pipeline is connected on the nozzle array that described environmental capsule inwall is provided with; The outlet pipeline of described water treatment system connects that described icing is drenched with rain and ultrasonic atomization system and hot mist system; The pipeline of described cooling water recirculation system connects described refrigeration system and vacuumizes and the fog discharge system; Described TT﹠C system is carried out parameter transmission and exchanges data by network and each system, with control the described air heat exchange circulation system, ice melting system, icing is drenched with rain and ultrasonic atomization system, water treatment system, hot mist system, cooling water recirculation system, refrigeration system and vacuumize and the action of fog discharge system.
The top of the described two cold wind units in the described air heat exchange circulation system is provided with a temperature adjustment electric heater respectively.
The described heat radiation lamp of in the described ice melting system each rear is respectively arranged with the paraboloid of revolution formula lampshade that a pair of light converges, and each described heat radiation lamp group connects the device of an adjusting electrical heating power respectively.
The and arranged on left and right sides of described three reserve tanks in described drench with rain icing and the ultrasonic atomization system is respectively arranged with a manual variable valve; Be provided with a cooling coil in the described constant temperature water tank, described constant temperature water tank outer setting has an electric heater, and described electric heater connects the heating coil in the described constant temperature water tank; The two ends of described cooling coil connect the outlet pipeline and the inlet pipeline of a small-sized refrigerating unit respectively, and a pneumatic control valve is set between described outlet pipeline and the inlet pipeline, and described small-sized refrigerator group is communicated with a unit condenser and an oil cooler respectively; The water inlet of described unit condenser and oil cooler is connected the outlet pipeline of described cooling water recirculation system, and the water delivering orifice of described unit condenser and oil cooler is connected the water return pipeline of described cooling water recirculation system; A pneumatic control valve is connected in series respectively on described drench with rain pipeline and the cold mist pipeline; An electric control valve is connected in series on the described icing water pipeline; The corresponding axial flow blower that a plurality of homeotropic alignments are installed in the back side of described nozzle array.
Described water treatment system comprises water treatment facilities, described water treatment facilities connect an inlet channel, the endpiece of described water treatment facilities connects two outlet conduits, wherein connect described hot mist system by a manual variable valve on the described outlet conduit, the other end of another described outlet conduit connects that described icing is drenched with rain and the ultrasonic atomization system.
Described hot mist system comprises the electric heating steam boiler that is arranged on outside two parallel connections of described environmental capsule, one end of described two electric heating steam boilers connects the outlet conduit in the described water treatment system, the other end connects described hot mist pipeline, connect successively on the described hot mist pipeline vacuum meter and a pneumatic control valve are connected on the hot spray painting mouth that is arranged in the described environmental capsule at last.
Described cooling water recirculation system comprises a cooling tower, be respectively arranged with water return pipeline and cooling water pipeline on the described cooling tower, wherein a described cooling water pipeline connects three cooling-water pumps side by side through an electronic hydrotreater, and the other end of described three cooling-water pumps connects two outlet pipelines.
Described refrigeration system comprises two screw rods compression condensation machine, described two freezing machines are communicated with a water cooled condenser and a water-cooled oil cooling machine respectively, the input end of described condenser and oil cooler is connected the outlet pipeline in the described cooling water recirculation system, the output terminal of described condenser and oil cooler is connected the water return pipeline in the described cooling water recirculation system, the endpiece of described two freezing machines forms circulation line with a vapour liquid separator respectively, the output terminal of two described vapour liquid separators connects a cold-producing medium and flows out pipeline, and input end connects two refrigerant vapor and flows into pipeline.
Described vacuumize and pump is mainly taken out by three masters by the fog discharge system and a holding pump is formed by connecting side by side, described three masters take out pump and a holding pump is communicated with described environmental capsule by a pump-line jointly; One vacuum breaker is set on the described pump-line, and the described vacuum breaker front fog discharge pipeline that is connected in parallel is disposed with an electric control valve and a fog discharge blower fan on the described fog discharge pipeline; A be connected in parallel variable valve, described three masters of the described vacuum breaker other end taken out pump and a holding pump, the front end that described three masters take out a pump and a holding pump connect successively respectively a non-return valve and a pneumatic control valve; Described three masters take out pump and holding pump and also are communicated with cooling water pipeline and water return pipeline in an emptying pipe and the described cooling water recirculation system respectively.
Described TT﹠C system comprises a main control module, and main control module connects an interface management module, a real-time control module, a data management module, a task management module, a real-time monitoring module and a hardware management module; Be arranged on each subsystem temperature sensor, vacuum sensor and water flow sensing unit and send the data message that collects to described real-time monitoring module and real-time control module, described real-time control module is carried out treatment conversion with data, send described data management module and main control module respectively to, carry out man-machine interaction by described interface management module, send will finishing of task to the task management module by described main control module.
Described TT﹠C system also comprises a supervisory system, and described supervisory system comprises some rotation cameras.
Be provided with an emergency repressurization system directly over the big hatch door of described environmental capsule, emergency repressurization system comprises that one drives multiple pressure valve soon, describedly drives multiple pressure valve soon and is connected with a filtrator; Outer setting at described environmental capsule has a manual air release; Outside at described environmental capsule also is provided with two mechanical pressure gauges.
Described environmental capsule middle part is the straight tube of a column type, and tank body body upper and lower end is the ball crown type end socket, is respectively arranged with a big hatch door and a little hatch door on the tank body floor level.
The present invention is owing to take above technical scheme, it has the following advantages: 1, the present invention includes environmental capsule, the air heat exchange circulation system, cooling water recirculation system, refrigeration system, vacuumize and the fog discharge system, water treatment system, hot mist system, icing is drenched with rain and the ultrasonic atomization system, ice melting system etc., the effect of cooperatively interacting of these systems, make the high height above sea level of environmental capsule collection, icing, filthy, multiple environmental simulation experiential function such as rain in one, can adapt to maximization, the requirement of multiparameter environmental simulation test is at present maximum in the world filth-icing-drench with rain-multi-functional filth of infrabar and environmental test chamber.2, the present invention is provided with the air heat exchange circulation system in environmental capsule, two cold wind units in the air heat exchange circulation system can be pumped into the air in the environmental capsule in two air channels via two return air inlets respectively, and air cooled off, and come air themperature is controlled by the heating power of regulating the temperature adjustment electric heater, cold air after the processing upwards enters the voltage stabilizing layer, then again by the even air outlet that is provided with on the air-supply orifice plate, enter in the environmental capsule from top to bottom, realized the air heat exchange circulation in the environmental capsule, and can make the cold wind temperature even, the air-supply air-flow is even.3, the present invention has cooling water recirculation system in the outer setting of environmental capsule, can provide cooling water for drench with rain icing and ultrasonic atomization system and refrigeration system through the cooled water of cooling water recirculation system.4, the present invention has refrigeration system in the outer setting of environmental capsule body, through the cold wind unit of low-temperature low-pressure refrigerant liquid in piping leads to environmental capsule after the refrigeration system processing, after the heat exchange, become liquid-vapor mixture and flow into two vapour liquid separators by pipeline, carry out gas-liquid separation, refrigerant vapour is compressed in compressor, after pressure raises, enter condenser, the refrigerant vapour of High Temperature High Pressure is cooled in condenser and is condensed into the refrigerant liquid of high pressure, refrigerant liquid reduces pressure by the expansion valve of screw compression freezing machine again, becomes low-temperature low-pressure refrigerant liquid, realizes process of refrigerastion.5, the present invention vacuumizes and the fog discharge system in the outer setting of environmental capsule, by vacuumizing and the fog discharge system can regulate air pressure in the environmental capsule, the high altitude low air pressure environment that simulation test is required, and can solve hot mist is difficult for discharging on the tank body top of environmental capsule problem.6, the present invention has water treatment system in the outer setting of environmental capsule, and water treatment system can be drenched with rain and the ultrasonic atomization system provides deionized water and the softening water of conductivity less than 10 μ s/cm for icing, and provides softening water for hot mist system.7, the present invention has hot mist system in the outer setting of environmental capsule, and hot mist system can provide saturated steam for the insulator contamination test, and the instant heating mist provides the experimental enviroment of hot mist.8, the present invention is provided with drench with rain icing and ultrasonic atomization system in the outside and the inside of environmental capsule, the phenomenon of drenching with rain can be simulated for the salt fog test of high pressure, UHV transmission equipment by icing and the ultrasonic atomization system of drenching with rain, for the artificial icing flashover test of insulator provides the little mist of ultrasound wave that needs and realizes test specimen surface ice coating state, but and blow icing process under the situation of simulating nature circle.9, the present invention is provided with ice melting system in the inside of environmental capsule, ice melting system adopts the method for radiation heating to carry out ice-melt, only need carry out spot heating to test specimen can finish ice-melt, need not to make more than the temperature recovery to 0 ℃ in the whole boiler-plate for ice-melt, therefore very energy-conservation, operating cost is low, is tested to next group icing test from ice-melt and need not through very long temperature-fall period, and adopt the noncontact de-icing technology to realize heating, around the insulator test specimen, do not form any air-flow; But, be easy to control by pressure regulation or power regulation device Adjustment System heating power.Cooperate ingeniously between the system of the present invention, and unify operational administrative by TT﹠C system, multiple environmental simulation experiential function such as integrate high height above sea level, icing, filth, rain can extensively be adapted to maximize, in the process of multiparameter environmental simulation test.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the outside synoptic diagram of environmental capsule of the present invention
Fig. 3 is an air heat exchange circulation system synoptic diagram of the present invention
Fig. 4 is cooling water recirculation system of the present invention and refrigeration system synoptic diagram
Fig. 5 is that the present invention vacuumizes and the fog discharge system schematic
Fig. 6 be environmental capsule of the present invention and vacuumize and the fog discharge system concern synoptic diagram
Fig. 7 is water treatment system of the present invention, hot mist system and icing is drenched with rain and the ultrasonic atomization system schematic
Fig. 8 is an ice melting system schematic top plan view of the present invention
Fig. 9 is the synoptic diagram that concerns of ice melting system of the present invention and environmental capsule
Figure 10 is an environmental capsule schematic top plan view of the present invention
Figure 11 is a TT﹠C system synoptic diagram of the present invention
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, the present invention includes an environmental capsule 1, an air heat exchange circulation system 2, a cooling water recirculation system 3, a refrigeration system 4, vacuumizes and fog discharge system 5, the hot mist of a water treatment system 6, a system 7, an icing is drenched with rain and ultrasonic atomization system 8, an ice melting system 9, an emergency repressurization system 10, a TT﹠C system 11 and an extra-high voltage power-supply system 13.In the process of the test, hang an insulator test specimen 14 in the environmental capsule 1, insulator test specimen 14 provides high voltage by extra-high voltage power-supply system 13.
As shown in Figure 2, environmental capsule 1 is a large tank, and it comprises a cabin body, and the middle part of cabin body is the straight tube of a column type, and the upper end of cabin body is protruding upward ball crown type end socket, and the lower end is slightly to cabin body internal projection.Bottom in the body of cabin is provided with a floor, is respectively arranged with a big hatch door 15 and a cludy door 16 on the body floor level of cabin, and the angle between big hatch door 15 and the cludy door 16 approximately is 45 °.Environmental capsule is formed by 16MnR steel and the processing and manufacturing of carbon steel reinforcement, low temperature resistant infrabar, and cabin body internal diameter is The high 25000mm of direct tube section, the about 32373mm of cabin body height overall.The effective dimensions of big hatch door 15 is 3000mm * 3800mm, the effective dimensions of cludy door 16 is 1800mm * 2000mm, big hatch door 15 and cludy door 16 adopt steel to be welded, and adopt " O " type viton seal ring that the flange of large and small hatch door 14,15 is sealed, to guarantee the airtight and heat-insulating property of cabin body.In order to reach heat preservation effect in the process of refrigerastion, prevent the generation of cold bridge phenomenon, whole cabin external surface also is coated with insulation material.
As shown in Figure 3, the air heat exchange circulation system 2 comprise be arranged on environmental capsule 1 inwall, two vertical vis-a-vis cold wind air channels 21, all leave the gap between the top of cold wind air channel 21 and environmental capsule 1, the two ends, the end.One air-supply orifice plate 22, be arranged on the top in the experimental cabin 1, evenly be covered with eyelet on it, air-supply orifice plate 22 is connected with the top port in two cold wind air channels 21, forming 23, two cold wind air channels 21, air channel, a top between the roof of air-supply orifice plate 22 and environmental capsule 1 is communicated with air channel, top 23.Be respectively arranged with an air-cooler 24 in the lower port in two cold wind air channels 21, two air-coolers 24 can cool off the air-flow in the two cold wind air channels 21 respectively, and for the air-flow circulation provides power, the top of two cold wind units 24 is provided with respectively and forms two air outlets 26 between the below in a temperature adjustment electric heater 25, two cold wind air channels 21 and environmental capsule 1 lower inner wall.Temperature adjustment electric heater 25 is used to regulate the temperature in the environmental capsule 1, be provided with temperature sensor in the environmental capsule 1, the number that temperature sensor will collect flows to TT﹠C system 11, by TT﹠C system 11 store, state judges, both can carry out adjustment then by the output power of manual adjustments electric heater 25, also can regulate the output power of electric heater 25 according to the setting value of test temperature automatically, realize temperature controlled automatic control.
In the process of the test, air in the environmental capsule 1 is under the effect of air-cooler 24, be drawn into cold wind air channel 21 from air outlet 26, and 21 upwards flow along the cold wind air channel, enter in the air channel, top 23 of air-supply orifice plate 22 tops, then by the wind pushing hole of air-supply on the orifice plate 22, flow through from top to bottom insulator test specimen 14 around, its surrounding environment is cooled off.When air-flow flows to the bottom of experimental cabin 1, again from two return air inlets 26 by 24 suction of two air-coolers and after temperature adjustment electric heater 25 is regulated temperature, enter in the cold wind air channel 21 and circulate.This circulating cooling method is very effective to the large-scale experiment cabin, can effectively avoid the insulator test specimen 14 uneven air-flow of formation temperature on every side, can make the temperature of each position in the experimental cabin even, and temperature difference is less from top to bottom to make insulator test specimen 14, generally is not more than 1 ℃.
As shown in Figure 4, cooling water recirculation system 3 is arranged on the outside of environmental capsule 1, it comprises a cooling tower 31, be respectively arranged with water return pipeline 32 and cooling water pipeline 33 on the cooling tower 31, wherein a cooling water pipeline 33 is through an electronic hydrotreater 34, connect three cooling-water pumps 35 side by side, the other end of three cooling-water pumps 35 connects outlet pipeline 36 and outlet pipeline 37, outlet pipeline 36 is responsible for drench with rain icing and ultrasonic atomization system 8 cooling water is provided, and outlet pipeline 37 is responsible for refrigeration system 4 chilled water is provided.The chilled water that cooling water recirculation system provides is from refrigeration system 4 and vacuumize and fog discharge system 5 takes away heat, enter cooling tower 31 by water return pipeline 32, cooling tower 31 is a kind of with water-cooled device, flow through the from top to bottom heat radiator of cooling tower 31 of the higher water of temperature, cat head two typhoon machines rotate and make air pass through heat radiator by force, thereby water temperature is reduced, form circulation, to guarantee the necessary heat exchanging process of the normal operation of said system.
As shown in Figure 4, refrigeration system 4 is arranged on the outside of environmental capsule body 1, it comprises two screw rods compression condensation machine 41, the refrigeration end of two freezing machines 41 connects a water cooled condenser 42 and water-cooled oil cooling machine 43 respectively, the water inlet of condenser 42 and oil cooler 43 is connected the outlet pipeline 37 of cooling water recirculation system 3, outlet pipeline 37 provides chilled water for condenser 42 and water-cooled oil cooling machine 43, the water return outlet of condenser 42 and oil cooler 43 is connected water return pipeline 32, and the chilled water of using flows in the cooling water recirculation system 3 by water return pipeline 32.The output terminal of two freezing machines 41 forms closed circuit with a vapour liquid separator 44 respectively, and two refrigerant vapor of input end connection that the output terminal of two vapour liquid separators 44 connects system one cryogen outflow pipeline 45, two vapour liquid separators 44 flow into pipeline 46,47.The process of refrigerastion of refrigeration system 4 is: the cold wind unit 24 that low-temperature low-pressure refrigerant liquid leads in the environmental capsule 1 through piping 45, in the evaporation row battalion of cold wind unit 24, after cold-producing medium absorbs the heat and gasification of air, the cold-producing medium liquid-vapor mixture is by pipeline 45,47 flow into two vapour liquid separators 44, after carrying out gas-liquid separation, refrigerant vapour is inhaled into the compressor of screw compression freezing machine 41, refrigerant vapour is compressed in compressor, after pressure raises, enter condenser 42, the refrigerant vapour of High Temperature High Pressure is cooled in condenser 42 and is condensed into the refrigerant liquid of high pressure, refrigerant liquid reduces pressure by the expansion valve of screw compression freezing machine 41 again, become low-temperature low-pressure refrigerant liquid, realize process of refrigerastion.In the process of refrigerastion; by the sensor that is arranged on environmental capsule body 1 inside data and the parameter that collects passed to TT﹠C system 11; operation by 11 pairs every compression condensation machine 41 of TT﹠C system is controlled; when the discharge pressure superelevation of compression condensation machine 41 or oily temperature superelevation etc., can carry out safety practices such as stoppage protection.
In the foregoing description, the model of two screw rods compression condensation machine 41 is respectively NJLGF290D and NJLGF580D, and supporting eight LLAF-580 air-coolers.
As shown in Figure 5, vacuumize and fog discharge system 5 is arranged on the outside of environmental capsule 1, be responsible for regulating the air pressure in the environmental capsule 1, the high altitude low air pressure environment that simulation test is required, and be responsible for solving hot mist is difficult for discharging on the tank body top of environmental capsule 1 problem.Vacuumize and pump 51 is mainly taken out by three masters by fog discharge system 5 and a holding pump 52 is formed by connecting side by side, and be communicated with environmental capsule 1 by a pump-line 53.One vacuum breaker 54 is set on the pump-line 53, and vacuum breaker 54 is generally full-gear for the valve of the trunk line of bleeding, by regulating the aperture scalable speed of exhaust.At the vacuum breaker 54 front ends fog discharge pipeline 55 that also is connected in parallel, be disposed with an electric control valve 56 and a fog discharge blower fan 57 on the fog discharge pipeline 55, be used for the fog discharge in the simulated environment boiler-plate 1.A be connected in parallel variable valve 58, three masters of vacuum breaker 54 other ends taken out a pump 51 and a holding pump 52, when the air pressure in environmental capsule 1 reaches setting value, aperture is opened and adjusted to the valve of variable valve 58 automatically, air pressure with in the holding pump 52 fit adjustment environmental capsules 1 makes stable gas pressure.The front end that three masters take out a pump 51 and a holding pump 52 connect successively respectively a non-return valve 59 and a pneumatic control valve 510 are to regulate airshed, cut-out or to connect pipeline.Three masters take out pump 51 and holding pump 52 and also are communicated with cooling water pipeline 33 and water return pipeline 32 in an emptying pipe 511 and the cooling water recirculation system 3 respectively.Be provided with a vacuum sensor in environmental capsule 1, vacuum sensor sends the data that collect to TT﹠C system 11, is judged by TT﹠C system 11, then can be by manually or automatically controlling the adjusting that vacuum breaker 54 is realized vacuum tightness.
Vacuumize and fog discharge system 5 in the principle of work of pumped vacuum systems be: earlier that environmental capsule 1 is airtight, open refrigeration system 4 again, make refrigeration system 4 work.Reach the temperature of setting when environmental capsule 1 after, close refrigeration system 4, open vacuumize and fog discharge system 5 in pumped vacuum systems, for environmental capsule 1 vacuumizes.Because environmental capsule 1 seals, refrigeration system 4 is when work, only can influence the temperature of air in the environmental capsule 1, and do not have mass exchange, therefore by controlling the rate of air sucked in required of pumped vacuum systems, promptly the air capacity outside environmental capsule 1 can realize the low temperature simulated environment under the different air pressure.Said process can only be opened refrigeration system 4 earlier and open pumped vacuum systems, because if open pumped vacuum systems earlier, opens refrigeration system 4 again, then under vacuum state, rarefaction of air in the environmental capsule 1, exchange heat is poor, causes refrigeration system 4 abilities to work to descend.
As Fig. 5, shown in Figure 6, vacuumize and fog discharge system 5 in the principle of work of fog discharge system be: when environmental capsule 1 needs fog discharge, close main take out pump 51 and holding pump 52 and vacuum breaker 54 earlier, open then be arranged on environmental capsule 1 outer one drive multiple pressure valve 17 soon, after treating to reach an atmospheric pressure in the environmental capsule 1, fog is drawn by fog discharge blower fan 57 through electric control valve 56.
In the foregoing description, it is the CBF430 water ring vacuum pump that three masters take out pump, and holding pump is the CBF360 water ring vacuum pump.
In the foregoing description, also be provided with a manual air release 512 in the outside of environmental capsule 1, manually air release 512 can manually be pressed again to environmental capsule 1.
In the foregoing description, also be provided with two mechanical pressure gauges 513, be used for the force value in the observing environment boiler-plate 1 in the outside of environmental capsule 1.
In the foregoing description, it is to take out the pneumatic control valve 510 that pump 51 and holding pump 52 connect with three masters respectively by control to realize that the test parameters in the environmental capsule 1 is regulated.
As shown in Figure 7, water treatment system 6 is arranged on the outside of environmental capsule 1, is responsible for that icing is drenched with rain and ultrasonic atomization system 8 provides deionized water and the softening water of conductivity less than 10 μ s/cm, and provides softening water for hot mist system 7.Water treatment system 6 comprises water treatment facilities 61, and water treatment facilities 61 are by an inlet channel 62 water inlets, and the water side of water treatment facilities 61 connects two outlet conduits 63,64.Wherein an outlet conduit 63 connects hot mist system 7 by a manual variable valve 65, prepares the required softening water of hot mist for hot mist system 7 provides.Another outlet conduit 64 connects icing drenches with rain and ultrasonic atomization system 8, for ultrasonic atomization system 8 provides test water.The workflow of water treatment system 6 is: at first former water is carried out pre-service, adopt mechanical filter and active carbon filter to carry out rough handling, to remove particle, chlorine residue colloid, partial organic substances and part high volence metal ion in anhydrating, stink, colourity etc.; Subsequent processing device has water softener, active carbon filter, security personnel's filtrator, feed pump, first-stage reverse osmosis feed pump and two-pass reverse osmosis and disinfection by ultraviolet light successively.
As shown in Figure 7, hot mist system 7 comprises the electric heating steam boiler 71 of two parallel connections that are arranged on environmental capsule 1 outside, one end of two electric heating steam boilers 71 connects the outlet conduit 63 in the water treatment system 6, the other end connects hot mist pipeline 72, connect successively on the hot mist pipeline 72 vacuum meter 73 and a pneumatic control valve 74 are connected on the hot spray painting mouth 75 that is provided with in two row's circulating lines in the environmental capsule 1.Hot mist system 7 is responsible for the insulator contamination test saturated vapor is provided, the instant heating mist, its principle of work is: the softening water that water treatment system 6 provides is heated after outlet conduit 63 enters two electric heating steam boilers 71, produce saturated vapor, water vapour is through hot mist pipeline 72 and 74 fens upper and lower two-way of pneumatic control valve, enter in the adherent circulating line of two rows of bottom in the cylindrical section of environmental capsule 1, and evenly hot spray painting mouth 75 ejections of opening from the circulating line.The flow control of hot mist realizes by the pneumatic control valve 74 that backfeed loop is controlled on the hot mist pipeline 72.
As shown in Figure 7, icing and the ultrasonic atomization system 8 of drenching with rain comprises the reserve tank 81 of three parallel connections that are arranged on environmental capsule 1 outside, wherein a reserve tank 81 is water tanks of being responsible for providing cold mist test water, and other two reserve tanks 81 are water tanks of using for icing, the proportioning of drenching with rain salinity.The two ends of the reserve tank 81 of three parallel connections all are respectively arranged with a manual variable valve 82, the water inlet end of three reserve tanks 81 connects the outlet conduit 64 of water treatment system 6, the water side connects a constant temperature water tank 83, be provided with cooling coil 84 in the constant temperature water tank 83, constant temperature water tank 83 outer setting have an electric heater 85, the heating coil 851 that electric heater 85 connects in the constant temperature water tank 83.Water temperature in the constant temperature water tank 83 is to control with the coil pipe that electric heater 85 is connected by cooling coil 84.The two ends of cooling coil 84 connect the outlet pipeline 87 and the inlet pipeline 88 of a small-sized refrigerating unit 86 respectively, and a pneumatic control valve 89 is set between outlet pipeline 87 and the inlet pipeline 88.Small-sized refrigerating unit 86 is provided with a unit condenser 810 and an oil cooler 811, the water inlet of unit condenser 810 and oil cooler 811 is connected the outlet pipeline 36 of cooling water recirculation system 3, provides chilled water by outlet pipeline 36 for unit condenser 810 and oil cooler 811; The water delivering orifice of unit condenser 810 and oil cooler 811 is connected the water return pipeline 32 of cooling water recirculation system 3.Constant temperature water tank 83 connects the water pump assembly 812 of a may command pressure by a pipeline, the pipeline that water pump assembly 812 comes out connects side by side drench with rain pipeline 813, one a cold mist pipeline 814 and an icing water pipeline 815, and a pneumatic control valve 816 of regulating flow is being connected in series respectively on wherein drench with rain pipeline 813 and the cold mist pipeline 814.An electric control valve 817 that is used for regulating the cold water flow of icing process ejection is connected in series on the icing water pipeline 815.Also be provided with water flow sensing unit in environmental capsule 1, water flow sensing unit sends the data of water velocity to TT﹠C system 11, by TT﹠C system 11 control electric control valves 816,817.The other end of pipeline 813 of drenching with rain is connected on the rain row 818 who is arranged on environmental capsule 1 inside by flexible pipe.The other end of cold mist pipeline 814 is connected on the cold atomizing nozzle 819 of two rows that environmental capsule 1 inwall is provided with at interval.The other end of icing water pipeline 815 is connected on the nozzle array 820 of environmental capsule 1 inwall setting, the corresponding axial flow blower 821 that a plurality of homeotropic alignments are installed in the back side of nozzle array 820.
Icing and the ultrasonic atomization system 8 of drenching with rain is responsible for the salt fog test of high pressure, UHV transmission equipment and simulates the phenomenon of drenching with rain, for the artificial icing flashover test of insulator provides the little mist of ultrasound wave that needs and realizes test specimen surface ice coating state, but and blow icing process under the situation of simulating nature circle.When utilizing this drench with rain icing and ultrasonic atomization system 8 to carry out the artificial pollution test, deionized water after water treatment facilities 61 are handled enters through outlet conduit 64 to be responsible for providing in the reserve tank 81 of cold mist test water, after being certain density solution by the testing requirements proportioning, enter constant temperature water tank 83, after in constant temperature water tank 83, being adjusted to the temperature of requirement, flow into cold mist pipeline 814, ejection from cold atomizing nozzle 819 at last, the temperature that cold mist supplies water is adjustable between 25 ℃~60 ℃.When carrying out artificial icing flashover test, after refrigeration system 4 drops to design temperature with the temperature in the environmental capsule 1, start the icing system of drenching with rain, system water is by supplying icing, the reserve tank 81 that the proportioning of drenching with rain salinity is used causes in the constant temperature water tank 83, and water temperature is adjusted to 0 ℃~3 ℃ by cooling coil 84, send into icing water pipeline 815 again, be delivered to nozzle array 820 at last, nozzle array 820 beyond 10 meters with the insulator test specimen 14 of water-jet to environmental capsule 1 center, system adopts adjustable discontinuous spray mode of the time interval, reaches the purpose at insulator test specimen 14 surperficial icing.The installation shaft flow fan 821 at nozzle array 820 back sides not only can utilize blower fan air-supply, adds the giant range, and axial flow blower 821 can produce crossflow around insulator test specimen 14, is used for the icing process under the natural wind simulating situation.For preventing the bursting by freezing of icing water pipeline 815 and nozzle array 820, can attach heat tape at the nozzle surface in icing water pipeline 815 and the nozzle array 820.The capillary type nozzle III that shower nozzle on the nozzle array 820 can adopt GB775.2-87 " insulator test method part 2: electrical test method " to recommend, when hydraulic pressure was 4bar, water spray length can reach 11m.
As Fig. 8, shown in Figure 9, ice melting system 9 is responsible for the ice-melt phenomenon of simulation icing flashover test, it comprises and is arranged on environmental capsule 1 inwall, the high-power heat radiation lamp of evenly spaced at least two groups group 91, and each high-power heat radiation lamp group 91 is shone insulator test specimen 14 from three directions.Heat radiation lamp in the high-power heat radiation lamp group 91 adopts high pressure xenon lamp or infrared lamp as light source, and each heat radiation lamp rear is respectively arranged with the paraboloid of revolution formula lampshade that a pair of light converges.Each heat radiation lamp group 91 is electrically connected a pressure regulation or power regulation device (not shown) respectively.Ice melting system 9 adopts the method for radiation heating, controls the spot size that shines on the test specimen by the relative position of regulating heat radiation lamp group and parabolic lampshade, regulates heating power by pressure regulation or power regulation device.Whole deicing processes only needs that insulator test specimen 14 is carried out spot heating and can finish, and does not need the temperature in the entire environment boiler-plate 1 is all gone back up to more than 0 ℃, and is not only energy-conservation but also reduced operating cost, and is easy to control.
As shown in figure 10, emergency repressurization system 10 comprises drives multiple pressure valve 17 soon, the interface of driving multiple pressure valve 17 soon be installed in environmental capsule 1 big hatch door 15 directly over, apart from ground 9m place, adopt the electric butterfly valve of φ 350mm bore, belong to by aperture and exit.Emergency repressurization system 10 is responsible for preventing the accident that caused by environmental capsule 1 inside and outside differential pressure, and the multiple pressure of environmental capsule 1 after the pollution test under the infrabar.In the course of work, emergency repressurization system 10 is according to the safe pressure reduction of setting, give by digital displaying meter and TT﹠C system 11 and to open 17 1 electric signal of multiple pressure valve soon, can open rapidly and drive multiple pressure valve 17 soon and exit, drive multiple pressure valve 17 soon and be connected with a filtrator 18, be used to filter the airborne impurity that enters in the environmental capsule 1.
As shown in figure 11, the mode that TT﹠C system 11 adopts centralized control to combine with decentralised control, mainly form by the electrical control cabinet of central control board and each subsystem of control, central control board is monitored each subsystem in real time by each electrical control cabinet, and each electrical control cabinet is used for the device control of each subsystem and measures showing main state parameter.Each independently electrical control cabinet be core with PLC, except that having automatic control function, can also realize the functions such as start and stop, switch of on-site manual button control pump and valve.Also be provided with various interlock mechanisms in the TT﹠C system 11, can reduce the device damage that fault and maloperation cause, guarantee the reliability service of system better.
The central control board of TT﹠C system 11 comprises a main control module 110, and main control module 110 is used to control a real-time control module 111, a real-time monitoring module 112, a data management module 113, an interface management module 114, a task management module 115 and a hardware management module 116.
The sensor (as temperature sensor, vacuum sensor and water flow sensing unit etc.) that is arranged on each subsystem sends the data message that collects to real-time monitoring module 111 and real-time control module 112, control module 112 is carried out treatment conversion with data in real time, sends data management module 113 and main control module 110 respectively to.Interface management module 114 sends will finishing of task to task management module 115 by main control module 110 by man-machine interaction, carries out each task then.
Each functions of modules is as follows:
Real-time monitoring module 111 main monitoring test equipment states, and show all parameter informations, finish following function: in the test figure of each measuring point of process flow diagram window real-time display system flow process; At curve map window real-time rendering trend map; Show all test figures at the integrated data display window; In the warning window display alarm information.
Control module 112 is cores of experimental measurement and control task in real time, is mainly used in: the data of each measuring point of acquisition test, finish the conversion of engineering unit, deal with data; According to operating condition of test, resolve the control algolithm opertaing device; Export various control signals.
Data management module 113 is mainly used in: regularly store test figure; The instant test figure of printing; The Processing Test data are finished data form printing, curve processing printing etc.; Test figure is converted into the Excel file, and more convenient external interface is provided.
Interface management module 114 can realize man-machine interaction, is mainly used in: windows such as management flow chart demonstration, curve display, data form demonstration; Customized menus, the response menucommand is finished the test parameters setting; Message in the response dialogue.
Task management module 115 is mainly used in assurance system real time execution, in time responds user's order; Clock management, the real-time of assurance system operation and periodicity; Synchronous, communication between finishing the work; Data mutual exclusion protection.
Hardware management module 116 is mainly used in: observing and controlling feature board, instrument management and hardware self-test, self diagnosis.
In the foregoing description, TT﹠C system 11 also comprises a supervisory system 12, supervisory system 12 comprises a plurality of cameras that are arranged on environmental capsule 1 inner each position, rotates camera and just can carry out the manual observation monitoring to the situation in the environmental capsule 1 from different perspectives.
In the foregoing description, environmental capsule 1, the air heat exchange circulation system 2, cooling water recirculation system 3, refrigeration system 4, vacuumize and fog discharge system 5, water treatment system 6, hot mist system 7, icing is drenched with rain and ultrasonic atomization system 8, ice melting system 9, the communication of the central control board of emergency repressurization system 10 and TT﹠C system 11 is carried out parameter transmission and exchanges data by network and RS-485 interface.
The foregoing description only is used to illustrate the present invention; wherein the structure of each parts, the position is set and connected mode all can change to some extent; every improvement of carrying out on the basis of technical solution of the present invention and equivalents all should not got rid of outside protection scope of the present invention.

Claims (13)

1. large multifunctional environmental simulator that is used for electrical test, it comprises an environmental capsule, it is characterized in that: be provided with an air heat exchange circulation system and an ice melting system in the described environmental capsule, described environmental capsule comprises also that an icing is drenched with rain and ultrasonic atomization system, a water treatment system, a hot mist system, a cooling water recirculation system, a refrigeration system, vacuumizes and fog discharge system, a TT﹠C system and one provide the extra-high voltage power-supply system of electrification in high voltage state for test specimen;
The described air heat exchange circulation system comprises and is arranged on two air channels that described environmental capsule is close to the inwall place, the below in described two air channels is provided with a return air inlet respectively, the top in described two air channels connects an air-supply orifice plate, evenly be provided with some wind pushing holes on the described air-supply orifice plate, the interior bottom in described two air channels is provided with a cold wind unit respectively;
Described ice melting system comprises the heat radiation lamp of at least two groups that are disposed on described environmental capsule inwall;
Described drench with rain icing and ultrasonic atomization system comprise and are arranged on described environmental capsule outside, three reserve tanks in parallel, the water inlet end of described three reserve tanks connects the outlet conduit of described water treatment system, the water side connects a constant temperature water tank, described constant temperature water tank connects a water pump assembly, the pipeline that described water pump assembly comes out connects side by side the pipeline of drenching with rain, an one cold mist pipeline and an icing water pipeline, the other end of the described pipeline of drenching with rain is connected on the rain row who is arranged on described environmental capsule inside, the other end of described cold mist pipeline is connected on the cold atomizing nozzle that described environmental capsule inwall is provided with at interval, and the other end of described icing water pipeline is connected on the nozzle array that described environmental capsule inwall is provided with;
The outlet pipeline of described water treatment system connects that described icing is drenched with rain and ultrasonic atomization system and hot mist system; The pipeline of described cooling water recirculation system connects described refrigeration system and vacuumizes and the fog discharge system; Described TT﹠C system is carried out parameter transmission and exchanges data by network and each system, with control the described air heat exchange circulation system, ice melting system, icing is drenched with rain and ultrasonic atomization system, water treatment system, hot mist system, cooling water recirculation system, refrigeration system and vacuumize and the action of fog discharge system.
2. a kind of large multifunctional environmental simulator that is used for electrical test as claimed in claim 1 is characterized in that: the top of the described two cold wind units in the described air heat exchange circulation system is provided with a temperature adjustment electric heater respectively.
3. a kind of large multifunctional environmental simulator that is used for electrical test as claimed in claim 1 or 2, it is characterized in that: the described heat radiation lamp of each in described ice melting system rear is respectively arranged with the paraboloid of revolution formula lampshade that a pair of light converges, and each described heat radiation lamp group connects the device of an adjusting electrical heating power respectively.
4. as claim 1 or 2 or 3 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: the and arranged on left and right sides of described three reserve tanks in described drench with rain icing and the ultrasonic atomization system is respectively arranged with a manual variable valve; Be provided with a cooling coil in the described constant temperature water tank, described constant temperature water tank outer setting has an electric heater, and described electric heater connects the heating coil in the described constant temperature water tank; The two ends of described cooling coil connect the outlet pipeline and the inlet pipeline of a small-sized refrigerating unit respectively, and a pneumatic control valve is set between described outlet pipeline and the inlet pipeline, and described small-sized refrigerator group is communicated with a unit condenser and an oil cooler respectively; The water inlet of described unit condenser and oil cooler is connected the outlet pipeline of described cooling water recirculation system, and the water delivering orifice of described unit condenser and oil cooler is connected the water return pipeline of described cooling water recirculation system; A pneumatic control valve is connected in series respectively on described drench with rain pipeline and the cold mist pipeline; An electric control valve is connected in series on the described icing water pipeline; The corresponding axial flow blower that a plurality of homeotropic alignments are installed in the back side of described nozzle array.
5. as claim 1 or 2 or 3 or 4 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: described water treatment system comprises water treatment facilities, described water treatment facilities connect an inlet channel, the endpiece of described water treatment facilities connects two outlet conduits, wherein connect described hot mist system by a manual variable valve on the described outlet conduit, the other end of another described outlet conduit connects that described icing is drenched with rain and the ultrasonic atomization system.
6. as claim 1 or 2 or 3 or 4 or 5 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: described hot mist system comprises the electric heating steam boiler that is arranged on outside two parallel connections of described environmental capsule, one end of described two electric heating steam boilers connects the outlet conduit in the described water treatment system, the other end connects described hot mist pipeline, connect successively on the described hot mist pipeline vacuum meter and a pneumatic control valve are connected on the hot spray painting mouth that is arranged in the described environmental capsule at last.
7. as claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: described cooling water recirculation system comprises a cooling tower, be respectively arranged with water return pipeline and cooling water pipeline on the described cooling tower, wherein a described cooling water pipeline connects three cooling-water pumps side by side through an electronic hydrotreater, and the other end of described three cooling-water pumps connects two outlet pipelines.
8. as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: described refrigeration system comprises two screw rods compression condensation machine, described two freezing machines are communicated with a water cooled condenser and a water-cooled oil cooling machine respectively, the input end of described condenser and oil cooler is connected the outlet pipeline in the described cooling water recirculation system, the output terminal of described condenser and oil cooler is connected the water return pipeline in the described cooling water recirculation system, the endpiece of described two freezing machines forms circulation line with a vapour liquid separator respectively, the output terminal of two described vapour liquid separators connects a cold-producing medium and flows out pipeline, and input end connects two refrigerant vapor and flows into pipeline.
9. as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: described vacuumize and pump is mainly taken out by three masters by the fog discharge system and a holding pump is formed by connecting side by side, described three masters take out pump and a holding pump is communicated with described environmental capsule by a pump-line jointly; One vacuum breaker is set on the described pump-line, and the described vacuum breaker front fog discharge pipeline that is connected in parallel is disposed with an electric control valve and a fog discharge blower fan on the described fog discharge pipeline; A be connected in parallel variable valve, described three masters of the described vacuum breaker other end taken out pump and a holding pump, the front end that described three masters take out a pump and a holding pump connect successively respectively a non-return valve and a pneumatic control valve; Described three masters take out pump and holding pump and also are communicated with cooling water pipeline and water return pipeline in an emptying pipe and the described cooling water recirculation system respectively.
10. as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: described TT﹠C system comprises a main control module, and main control module connects an interface management module, a real-time control module, a data management module, a task management module, a real-time monitoring module and a hardware management module; Be arranged on each subsystem temperature sensor, vacuum sensor and water flow sensing unit and send the data message that collects to described real-time monitoring module and real-time control module, described real-time control module is carried out treatment conversion with data, send described data management module and main control module respectively to, carry out man-machine interaction by described interface management module, send will finishing of task to the task management module by described main control module.
11. a kind of large multifunctional environmental simulator that is used for electrical test as claimed in claim 10, it is characterized in that: described TT﹠C system also comprises a supervisory system, and described supervisory system comprises some rotation cameras.
12. as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: directly over the big hatch door of described environmental capsule, be provided with an emergency repressurization system, emergency repressurization system comprises that one drives multiple pressure valve soon, describedly drives multiple pressure valve soon and is connected with a filtrator; Outer setting at described environmental capsule has a manual air release; Outside at described environmental capsule also is provided with two mechanical pressure gauges.
13. as claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 described a kind of large multifunctional environmental simulators that are used for electrical test, it is characterized in that: described environmental capsule middle part is the straight tube of a column type, tank body body upper and lower end is the ball crown type end socket, is respectively arranged with a big hatch door and a little hatch door on the tank body floor level.
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