CN203586642U - Snowmaking device for V-shaped insulator string snow-covering test - Google Patents
Snowmaking device for V-shaped insulator string snow-covering test Download PDFInfo
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- CN203586642U CN203586642U CN201320724545.8U CN201320724545U CN203586642U CN 203586642 U CN203586642 U CN 203586642U CN 201320724545 U CN201320724545 U CN 201320724545U CN 203586642 U CN203586642 U CN 203586642U
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- 239000012212 insulator Substances 0.000 title claims abstract description 62
- 238000012360 testing method Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000007921 spray Substances 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000004088 simulation Methods 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 239000008400 supply water Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 2
- 238000007710 freezing Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 239000005413 snowmelt Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 108010066057 cabin-1 Proteins 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
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- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model provides a snowmaking device for a V-shaped insulator string snow-covering test. The device is used for providing a snowfall simulation environment for insulators in an electric transmission line so as to detect working conditions of the insulators in a snow-covering environment. The device comprises a testing chamber, a water supplying unit and an air supplying unit, wherein the air supplying unit is arranged in the testing chamber; a bracket is arranged at the top of the inside of the testing chamber; and a spray gun is arranged right above the bracket. The device is improved in a way that the spray gun is respectively connected with the air supplying unit and the water supplying unit through pipelines; the insulators are hung on the bracket in a shape of V; the spray gun is used for spraying an air-water mixture so as to form the falling of snow in the testing chamber; and the water supplying flow and the air supplying flow can be regulated by regulating a water-path electromagnetic valve and an air-path electromagnetic valve, so that the covering of the snow falling onto the V-shaped V insulator string can meet the test requirement. Compared with the prior art, according to the device provided by the utility model, the snow covering position, the snow covering thickness, the snow covering density, the snow covering area, the snow covering temperature, the snow covering homogeneity and the snowmelt water conductivity of the insulators can be regulated, thereby meeting the requirement of the effective snow-covering test.
Description
Technical field
The utility model relates to a kind of snow making apparatus, is specifically related to a kind of V-type insulator chain snowberg test snow making apparatus.
Background technology
The electric energy that generator sends, after transformer boosts, then is realized transmission of electricity through the control appliance such as breaker access transmission line of electricity.By version, divide, transmission line of electricity is divided into overhead transmission line and cable run.Overhead transmission line be erected at ground the circuit being formed by overhead line structures, wire, insulator, line hardware, bracing wire, pole and tower foundation, earthing or grounding means etc. on.According to the character of carrying electric current, divide, transmission of electricity is divided into ac transmission and direct current transportation.
In recent years, be accompanied by China Power developing steps and constantly accelerate, China Power Grids is also developed rapidly, and network system working voltage grade improves constantly, and network size also constantly expands.Power grid construction has become the main direction of China's power construction at present, to the year two thousand twenty, will build up strong intelligent grid comprehensively, the preliminary target of building world-class electrical network that realizes.
At present; have a lot of places all can have the phenomenons of insulator one-time continuous snowberg a couple of days and even several weeks, and insulator chain move in sleet or snow melt process, and arcing fault often can occur; injure the safe and stable operation of power system, cause adverse influence to user's production and life.
In most of the cases accumulated snow can not increase the possibility of flashover substantially, causes that the situation of snow sudden strain of a muscle is uncommon comparatively speaking, and they comprise: fine and close accumulated snow, namely snow slush or closely knit snow, rather than dry and soft snow;
Adhere to accumulated snow closely with insulator surface; The even accumulated snow of bridge joint insulator 60-100% dry arcing distance; Thereby the thicker snow deposit in space between the multiple insulators that are full of dry arcing distance between umbrella disk depth bridge joint insulator cluster parachute or be arranged in parallel; The good snow deposit of electric conductivity, can affect the Potential distribution of insulator surface and support restriking of alternating current arc; The filth migration of insulator surface enters in the middle of snow deposit.Suitable artificial test method can be reappeared all important environmental factor that causes snow to dodge, so that snow is flashed to resemble, carries out experimental study, rationally adjusts insulator parameter, avoids the frequent generation of this type of accident as far as possible.
Utility model content
For meeting the simulated test of different operating modes, the utility model provides a kind of V-type insulator chain snowberg test snow making apparatus and test method thereof, make snowberg position, thickness, density, area, temperature, uniformity and snowmelt electrical conductivity on insulator chain adjustable, to reach effective snowberg environmental test.
The purpose of this utility model is to adopt following technical proposals to realize:
A kind of V-type insulator chain snowberg test snow making apparatus that the utility model provides, described device is used to the insulator in transmission line of electricity that Simulation of Snowfall environment is provided, to detect the operating mode of insulator at snowberg environment, comprise experimental cabin, supply water unit and air supply unit, described air supply unit is arranged in described experimental cabin, described experimental cabin inner top is provided with support, directly over described support, be provided with spray gun, its improvements are: described spray gun is connected with air supply unit with for water unit respectively by pipeline.
Wherein, the described water unit that supplies comprises water tank, water pump, filter, refrigeration unit and plate type heat exchanger; Described water tank is provided with outlet conduit in parallel, and wherein connect successively described water pump, filter and plate type heat exchanger are set in a road, and another road is provided with waterway electromagnetic valve; Described parallel pipeline is provided with waterway electromagnetic valve with the water supply line that described spray gun is connected; Described refrigeration unit is connected with plate type heat exchanger.
Wherein, described water pump and filter are parallel with relief valve bypass.
Wherein, described water tank is provided with freezing water intaking pipe road and sewer pipe.
Wherein, described waterway pipe is provided with insulation insulating barrier.
Wherein, parallel pipeline described in the branch road slope aspect of described waterway pipe, described parallel pipeline bottom is provided with emptying solenoid valve, for evacuated tube internal water accumulation.
Wherein, the air compressor of described air supply unit is connected with described spray gun by steam line, is provided with pressure-reducing valve and electromagnetic valve of gas circuit on described steam line.
Wherein, the air pressure that described air compressor provides is 0.3MPa.
Wherein, experimental cabin is cylinder closed structure, and wall is covered with insulation construction, and in cabin, temperature is-10 ℃.
Wherein, described insulator is arranged on described support, and quantity is more than or equal to 2, and the insulator being serially connected on described support is that V-type distributes.
Wherein, the distance of the nozzle of described spray gun and V-type insulator chain is 1～2m.
Wherein, described spray gun is pressure sending type automatic spray gun, and quantity is more than or equal to 2, and the bore of nozzle is 0.8mm.
Wherein, described nozzle is wound around heat tape.
Compared with prior art, the beneficial effect that the utility model reaches is:
1, the snowberg position on insulator chain, thickness, density, area, temperature, uniformity and snowmelt electrical conductivity are adjustable.
2, simple to operate, flexible, cost of investment is low, but can reach good artificial snow effect.
3, the salinity of water can manual adjustments.
4, automatic spray gun position is adjustable, and the spray angle of nozzle can change flexibly.
5, by regulating jet velocity, adjustable water flow and the gas supply flow of nozzle.
6, can conveniently change different snowberg operating modes, the arcing fault that insulator chain is moved in sleet or snow melt process is carried out test simulation and is researched and analysed.
Accompanying drawing explanation
Fig. 1 is: the V-type insulator chain snowberg test snow making apparatus front cross-section view that the utility model provides;
Fig. 2 is: the snow making apparatus snowfall system diagram for the test of V-type insulator chain snowberg that the utility model provides;
Wherein: 1, experimental cabin; 2, for water unit; 3, air supply unit; 101, spray gun; 102, insulator; 103, support; 201, water supply line; 202, water supply line; 203, water supply line; 204, waterway electromagnetic valve; 205, waterway electromagnetic valve; 206, waterway electromagnetic valve; 207, waterway electromagnetic valve; 208, relief valve; 209, water tank; 210, water pump; 211, filter; 212, refrigeration unit; 213, plate type heat exchanger; 301, steam line; 302, electromagnetic valve of gas circuit; 303, electromagnetic valve of gas circuit; 304, pressure-reducing valve; 305, air compressor.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.
The present embodiment is tested with snow making apparatus as example take V-type insulator chain snowberg, as shown in Figure 1 to Figure 2, the V-type insulator chain snowberg test that the utility model embodiment provides comprises with snow making apparatus: experimental cabin 1, for water unit 2, air supply unit 3, spray gun 101, insulator 102, support 103, water supply line 201, water supply line 202, water supply line 203, waterway electromagnetic valve 204, waterway electromagnetic valve 205, waterway electromagnetic valve 206, waterway electromagnetic valve 207, relief valve 208, water tank 209, water pump 210, filter 211, refrigeration unit 212, plate type heat exchanger 213, steam line 301, electromagnetic valve of gas circuit 302, electromagnetic valve of gas circuit 303, pressure-reducing valve 304, air compressor 305.
Wherein, experimental cabin 1 is cylinder closed structure, and wall is covered with insulation construction, in cabin, temperature maintains-10 ℃, on the support 103 of experimental cabin 1 inner upper, hang the V-arrangement insulator chain being formed by insulator 102, the distance of the nozzle of spray gun 101 and V-arrangement insulator chain is 1～2m, guarantees to drop to the airborne moisture of the front absorption of V-arrangement insulator chain and forms artificial snow.
For water unit 2, to the spray gun 101 in experimental cabin 1, supply water, wherein water supply line 206, waterway electromagnetic valve 204, waterway electromagnetic valve 206 and waterway electromagnetic valve 207 are positioned at the inside of experimental cabin 1; A part for water supply line 201, water supply line 202 and water supply line 203, waterway electromagnetic valve 205, water pump 210, filter 211, relief valve 208, plate type heat exchanger 213, refrigeration unit 212 is positioned at the outside of experimental cabin 1.Water route pipeline is installed insulation insulating barrier, guarantees that the snowfall water in pipe carries out good heat insulation with the external world; When each branch road is installed, need slope aspect supervisor, guarantee when emptying, anhydrous in pipeline; Emptying solenoid valve is arranged at supervisor bottom, water route, for evacuated tube internal water accumulation; After the waterway electromagnetic valve of spray gun 101 is closed, emptying solenoid valve is opened, evacuated tube internal water accumulation.
According to the requirement of snowfall thickness and area, determine water supply flow; According to snowfall uniformity requirement, arrangement and the assignment of traffic scheme of spray gun 101 nozzles is set; According to designing requirement, choose the model of water tank 209 to guarantee the water demand of snowfall, material selection stainless steel or the fiberglass of water tank 209; The water source providing for snowfall should shift to an earlier date and is chilled in advance 1～3 ℃, is the chilled water of 4～5 ℃ according to snowfall institute's water requirement and existing temperature, determines the refrigerating capacity that precooling needs, thereby chooses the model of refrigeration unit 212.
The method of operating of snow making apparatus for the test of V-type insulator chain snowberg, step is as follows:
1, select test insulator 102 and clean, answering if necessary presoil, then insulator 102 at room temperature dried and be cooled to-7 ℃～-5 ℃, this temperature is accumulating processes of snowpack design temperature;
2, before test, need the temperature stabilization in experimental cabin 1 at-10 ℃, when needs snowfall, ON cycle pump and waterway electromagnetic valve 205, and close waterway electromagnetic valve 204, make pre-cold water form loop;
3, open refrigeration unit 212, by plate type heat exchanger 213, the water that needs precooling is chilled to 1～3 ℃ in advance;
4, close waterway electromagnetic valve 205, and open water way solenoid valve 204, supply water to spray gun 101; Open air compressor 305 and electromagnetic valve of gas circuit 302 and electromagnetic valve of gas circuit 302 to spray gun 101 air feed simultaneously; Gas, water mixed aerosol in spray gun 101 spray by nozzle, in the interior formation snowfall of experimental cabin 1; By regulating waterway electromagnetic valve 204, electromagnetic valve of gas circuit 302 and electromagnetic valve of gas circuit 303, can regulate water supply flow and gas supply flow, guarantee that the snowberg dropping on V-arrangement insulator chain meets test requirements document;
5, last, the waterway electromagnetic valve of spray gun 101 204, waterway electromagnetic valve 206 and waterway electromagnetic valve 207 are closed, open emptying solenoid valve, by emptying the ponding in water supply line.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (13)
1. a V-type insulator chain snowberg test snow making apparatus, described device is used to the insulator in transmission line of electricity that Simulation of Snowfall environment is provided, to detect the operating mode of insulator at snowberg environment, comprise experimental cabin, supply water unit and air supply unit, described air supply unit is arranged in described experimental cabin, described experimental cabin inner top is provided with support, is provided with spray gun directly over described support, it is characterized in that: described spray gun is connected with air supply unit with for water unit respectively by pipeline.
2. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: the described water unit that supplies comprises water tank, water pump, filter, refrigeration unit and plate type heat exchanger; Described water tank is provided with outlet conduit in parallel, and wherein connect successively described water pump, filter and plate type heat exchanger are set in a road, and another road is provided with waterway electromagnetic valve; Described parallel pipeline is provided with waterway electromagnetic valve with the water supply line that described spray gun is connected; Described refrigeration unit is connected with plate type heat exchanger.
3. V-type insulator chain snowberg test snow making apparatus as claimed in claim 2, is characterized in that: described water pump and filter are parallel with relief valve bypass.
4. V-type insulator chain snowberg test snow making apparatus as claimed in claim 3, is characterized in that: described water tank is provided with freezing water intaking pipe road and sewer pipe.
5. V-type insulator chain snowberg test snow making apparatus as claimed in claim 4, is characterized in that: described waterway pipe is provided with insulation insulating barrier.
6. V-type insulator chain snowberg test snow making apparatus as claimed in claim 5, is characterized in that: parallel pipeline described in the branch road slope aspect of described waterway pipe, described parallel pipeline bottom is provided with emptying solenoid valve, for evacuated tube internal water accumulation.
7. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: the air compressor of described air supply unit is connected with described spray gun by steam line, is provided with pressure-reducing valve and electromagnetic valve of gas circuit on described steam line.
8. V-type insulator chain snowberg test snow making apparatus as claimed in claim 7, is characterized in that: the air pressure that described air compressor provides is 0.3MPa.
9. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: experimental cabin is cylinder closed structure, and wall is covered with insulation construction, and in cabin, temperature is-10 ℃.
10. V-type insulator chain snowberg test snow making apparatus as claimed in claim 1, is characterized in that: described insulator is arranged on described support, and quantity is more than or equal to 2, and the insulator being serially connected on described support is that V-type distributes.
11. V-type insulator chain snowberg test snow making apparatus as claimed in claim 10, is characterized in that: the distance of the nozzle of described spray gun and V-type insulator chain is 1～2m.
12. V-type insulator chain snowberg test snow making apparatus as claimed in claim 11, is characterized in that: described spray gun is pressure sending type automatic spray gun, and quantity is more than or equal to 2, the bore of nozzle is 0.8mm.
13. V-type insulator chain snowberg test snow making apparatus as claimed in claim 12, is characterized in that: described nozzle is wound around heat tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724545.8U CN203586642U (en) | 2013-11-15 | 2013-11-15 | Snowmaking device for V-shaped insulator string snow-covering test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724545.8U CN203586642U (en) | 2013-11-15 | 2013-11-15 | Snowmaking device for V-shaped insulator string snow-covering test |
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| Publication Number | Publication Date |
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| CN203586642U true CN203586642U (en) | 2014-05-07 |
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| CN201320724545.8U Expired - Lifetime CN203586642U (en) | 2013-11-15 | 2013-11-15 | Snowmaking device for V-shaped insulator string snow-covering test |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591745A (en) * | 2013-11-15 | 2014-02-19 | 国家电网公司 | Snow making device for V-shaped insulator chain snow covering test and operation method thereof |
| CN104237490A (en) * | 2014-08-12 | 2014-12-24 | 北京建筑大学 | Snowfall and snow-melting simulating device |
| CN106091513A (en) * | 2016-08-29 | 2016-11-09 | 国网河南省电力公司电力科学研究院 | A kind of artificial snow-making snowberg method being applicable to electrical test and snowberg test product |
| CN106501686A (en) * | 2016-10-10 | 2017-03-15 | 国网天津市电力公司 | A kind of test method for analyzing snow slush flashover performance |
| CN114002504A (en) * | 2021-11-09 | 2022-02-01 | 广东电网有限责任公司电力科学研究院 | Device for measuring impedance of discharge channel along surface of basin-type insulator |
-
2013
- 2013-11-15 CN CN201320724545.8U patent/CN203586642U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591745A (en) * | 2013-11-15 | 2014-02-19 | 国家电网公司 | Snow making device for V-shaped insulator chain snow covering test and operation method thereof |
| CN104237490A (en) * | 2014-08-12 | 2014-12-24 | 北京建筑大学 | Snowfall and snow-melting simulating device |
| CN106091513A (en) * | 2016-08-29 | 2016-11-09 | 国网河南省电力公司电力科学研究院 | A kind of artificial snow-making snowberg method being applicable to electrical test and snowberg test product |
| CN106091513B (en) * | 2016-08-29 | 2018-07-17 | 国网河南省电力公司电力科学研究院 | A kind of artificial snow-making snowberg method and snowberg test product suitable for electrical test |
| CN106501686A (en) * | 2016-10-10 | 2017-03-15 | 国网天津市电力公司 | A kind of test method for analyzing snow slush flashover performance |
| CN106501686B (en) * | 2016-10-10 | 2019-07-05 | 国网天津市电力公司 | It is a kind of for analyzing the test method of snow slush flashover performance |
| CN114002504A (en) * | 2021-11-09 | 2022-02-01 | 广东电网有限责任公司电力科学研究院 | Device for measuring impedance of discharge channel along surface of basin-type insulator |
| CN114002504B (en) * | 2021-11-09 | 2023-04-25 | 广东电网有限责任公司电力科学研究院 | Measuring device for impedance of basin-type insulator surface discharge channel |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20160817 Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee after: China Electric Power Research Institute Patentee after: State Grid Corporation of China Patentee after: STATE GRID SHANXI ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: China Electric Power Research Institute |
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Granted publication date: 20140507 |
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