CN106374379A - Small-sized fully-insulated air-inflated ring main unit - Google Patents
Small-sized fully-insulated air-inflated ring main unit Download PDFInfo
- Publication number
- CN106374379A CN106374379A CN201610784443.3A CN201610784443A CN106374379A CN 106374379 A CN106374379 A CN 106374379A CN 201610784443 A CN201610784443 A CN 201610784443A CN 106374379 A CN106374379 A CN 106374379A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Sealing Material Composition (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to a small-sized fully-insulated air-inflated ring main unit. The small-sized fully-insulated air-inflated ring main unit comprises a cabinet body and a cabinet door, wherein the interior of the cabinet body is divided into six module placement modules through partition plates; spliced lug bosses are arranged on one side of the cabinet body while spliced grooves are formed in other side of the cabinet body correspondingly; spliced channels are formed in the spliced lug bosses and the spliced grooves; the spliced channels are connected with the cabinet body; end covers are arranged on the spliced lug bosses and the spliced grooves; a sealing mechanism is arranged between the cabinet body and the cabinet door; the sealing mechanism comprises a first sealing part and a second sealing part; the first sealing part comprises a first sealing part main body; a sealing cavity is formed in the first sealing part main body; and the sealing cavity consists of a first sealing cavity, a second sealing cavity and a third sealing cavity form outside to inside in sequence. The small-sized fully-insulated air-inflated ring main unit is simple in structure; the modules in the ring main unit can be increased in a spliced manner; and meanwhile, the sealing mechanism is arranged in the ring main unit, so that the sealing performance of the ring main unit is improved, and the small-sized fully-insulated air-inflated ring main unit is safer and more reliable.
Description
Technical field
The present invention relates to ring main unit technical field, particularly to a kind of small-sized all-insulation inflation looped network cabinet.
Background technology
Stage domestic Inflatable ring main unit (hereinafter referred to as: gas-filling cabinet) quickly grows, and increasing cell market is in design
All adopt this equipment during electric power system, also large scale investment will be used in future.
Gas-filling cabinet, from nominally understand out be exactly inner inflatable cupboard.So the gas tank being filled with sf6 gas is naturally
The core component of cupboard.Gas-filling cabinet gas tank currently on the market does shell using 304 rustless steels substantially, is led to by corrosion resistant plate
Cross noble gases and be welded into an airtight gas tank, then installation switchgear be filled with sf6 gas thereto.Due to rustless steel originally
Stiffness of the body degree is big, by welding enough in theory safe and reliable of the gas tank made.
But gas-filling cabinet is in equipment conveying or installation process, can be because collision leads to the reasons such as gas tank deformation, temperature change
Cause gas tank built-in electrical insulation gas to leak or under-voltage, then lead to equipment cannot normally run, the operation of impact power system.
Content of the invention
The present invention proposes a kind of small-sized all-insulation inflation looped network cabinet for the problems referred to above, and structure is simple, can be by spelling
The mode connecing expands ring main unit inner module, arranges sealing mechanism simultaneously, improve the sealing property of ring main unit, more in ring main unit
Plus it is safe and reliable.
Specific technical scheme is as follows:
A kind of small-sized all-insulation inflation looped network cabinet, is divided into six modules including in cabinet and cabinet door, cabinet by dividing plate
Placement region, is provided with a fixing drawer in each module placement region, fixing drawer is used for fixing each module, and cabinet side sets
There is splicing projection, what opposite side was corresponding is provided with splicing groove, is provided with splicing tunnel, splicing is logical in splicing projection and splicing groove
Road is connected with cabinet, and splicing projection is provided with end cap with splicing groove；
It is provided with sealing mechanism, described sealing mechanism includes first seal and the second sealing between described cabinet and cabinet door
Part, first seal includes first seal main body, is provided with annular seal space in first seal main body, and annular seal space is from the outside to the core successively
It is made up of first annular seal space, the second annular seal space and the 3rd annular seal space, first annular seal space is truncated cone-shaped structure, the second annular seal space and the
Three annular seal spaces are cylindrical structure, and the 3rd sealing resonator end surface outwardly forms reinforcing projection, and the diameter d1 of the second annular seal space is big
In the diameter d2 of the 3rd annular seal space, described second seal includes fixing end and inserted terminal, and fixing end is cylindrical structure, grafting
The shape at end, structure, size are all identical with annular seal space, and first seal is fixed on cabinet, and second seal is fixed on cabinet door
On, plug-type being fixed in first seal of second seal seals.
A kind of above-mentioned small-sized all-insulation inflation looped network cabinet, wherein, the composition of described first seal is by weight
It is calculated as:
Ethylene propylene diene rubber 60-70 part, acrylate rubber 25-40 part, nano imvite 10-15 part, age resistor 20-30
Part, vulcanizing agent 18-32 part, dichloromethane 32-38 part, white carbon 28-35 part, ferrocene 0.2-5 part, Colophonium 26-38 part, bonding
Agent 22-28 part.
A kind of above-mentioned small-sized all-insulation inflation looped network cabinet, wherein, the composition of described second seal is by weight
It is calculated as:
Silicone rubber 30-36 part, nitrile rubber 42-58 part, politef 15-18 part, age resistor 10-15 part, vulcanizing agent
12-16 part, dichloromethane 21-27 part, white carbon 15-18 part, stearic acid 5-9 part, octadecyl acrylate 3-6 part, plasticizer 18-
22 parts, Colophonium 10-15 part, binding agent 15-18 part.
A kind of above-mentioned small-sized all-insulation inflation looped network cabinet, wherein, described age resistor is counted by weight by acetone 18-25
Part, n- myristyl trichlorosilane 16-20 part, dioctyl sodium sulphosuccinate 2-8 part, diphenylamines 5-12 part, 2- (2- hydroxyl-
5- methyl -3- ter .- butylbenzyl) -4- methyl-6-tert butyl phenylacetic acid ester 0-5 part is mixed with and forms.
A kind of above-mentioned small-sized all-insulation inflation looped network cabinet, wherein, described vulcanizing agent is by cumyl peroxide, three polysulfide cyanogen
Acid, methanol are mixed by the ratio of weight and number of 3:1.7:2.2.
A kind of above-mentioned small-sized all-insulation inflation looped network cabinet, wherein, described adhesive is counted by weight by dichloromethane 5-
10 parts, tetraisocyanate 2-8 part, 203 tackifying resin 1-3 parts, agar 1-3 part, poly- diethanol 6-10 part is mixed with and forms.
A kind of above-mentioned small-sized all-insulation inflation looped network cabinet, wherein, the preparation method of described first seal is: will be above-mentioned each
Hot-forming after mixing 5-8h at a temperature of 100-120 DEG C in component addition muller；The preparation side of described second seal
Method is: above-mentioned each component is added hot-forming after mixing 5-8h at a temperature of 120-140 DEG C in muller.
The invention has the benefit that
In cabinet of the present invention, six module placement regions are divided into by dividing plate, at most can configure 6 unit modules, when
When looped network master unit structure configuration module is more than 6 units, as long as by the splicing projection of two neighboring cabinet and splicing groove phase
The inter-engaging connection that can achieve between module, convenient and swift；
It is provided with sealing mechanism, sealing mechanism includes first seal and second seal between cabinet of the present invention and cabinet door,
The hardness of first seal is more than the hardness of second seal, then is equipped with unique shape and structure, and sealing property is fabulous, makes looped network
Cabinet is not affected by environment, anti-dewing, solidifying frost, salt fog, filth, anticorrosive, UV resistant and chemical substance, can be used on bad environments
Place；
The use environment of the present invention is:
Ambient temperature: -45 DEG C～+50 DEG C；
Relative humidity: daily mean≤97%, monthly average value≤93%；
Shock resistance: 8 degree, horizontal acceleration≤0.4g, normal acceleration≤0.2g；
Height above sea level :≤2500m.
Brief description
Fig. 1 is present configuration figure.
Fig. 2 is side view of the present invention.
Fig. 3 is first seal sectional view of the present invention.
Fig. 4 is second seal sectional view of the present invention.
Specific embodiment
For making technical scheme become apparent from clearly, the present invention is described further below in conjunction with the accompanying drawings,
The scheme that any technical characteristic to technical solution of the present invention carries out equivalencing and conventional reasoning draws each falls within the present invention and protects
Shield scope.
Reference
Cabinet 1, cabinet door 2, dividing plate 3, splicing projection 4, splicing groove 5, end cap 6, sealing mechanism 7, first seal 8, the
Two sealing members 9, first seal main body 10, annular seal space 11, first annular seal space 12, the second annular seal space 13, the 3rd annular seal space 14, plus
Gu projection 15, fixing end 16, inserted terminal 17.
Embodiment one
A kind of small-sized all-insulation inflation looped network cabinet, is divided into six moulds including in cabinet 1 and cabinet door 2, cabinet by dividing plate 3
Block placement region, is provided with a fixing drawer in each module placement region, fixing drawer is used for fixing each module, cabinet side
It is provided with splicing projection 4, what opposite side was corresponding is provided with splicing groove 5, is provided with splicing tunnel, spells in splicing projection and splicing groove
Connect road to be connected with cabinet, splicing projection is provided with end cap 6 with splicing groove；
It is provided with sealing mechanism 7, described sealing mechanism includes first seal 8 and the second sealing between described cabinet and cabinet door
Part 9, first seal includes first seal main body 10, is provided with annular seal space 11 in first seal main body, and annular seal space is from extroversion
Inside it is made up of first annular seal space 12, the second annular seal space 13 and the 3rd annular seal space 14 successively, first annular seal space is truncated cone-shaped structure, the
Two annular seal spaces and the 3rd annular seal space are cylindrical structure, and the 3rd sealing resonator end surface outwardly forms reinforcing projection 15, and second is close
The diameter d1 in envelope chamber is more than the diameter d2 of the 3rd annular seal space, and described second seal includes fixing end 16 and inserted terminal 17, fixing
Hold as cylindrical structure, the shape of inserted terminal, structure, size are all identical with annular seal space, and first seal is fixed on cabinet,
Two sealing members are fixed in cabinet door, and plug-type being fixed in first seal of second seal seals.
The preparation method of described sealing mechanism is:
(1) count 22 parts of acetone, 18 parts of n- myristyl trichlorosilane, dioctyl sodium sulphosuccinate 5 by weight
Part, 8 parts of diphenylamines, 2- (2- hydroxy-5-methyl base -3- ter .- butylbenzyl) 2.5 parts of -4- methyl-6-tert butyl phenylacetic acid ester
It is mixed with to obtain age resistor；
(2) cumyl peroxide, trithiocyanuric acid, methanol mix to obtain vulcanizing agent by the ratio of weight and number of 3:1.7:2.2；
(3 count by weight by 7 parts of dichloromethane, 6.7 parts of tetraisocyanate, 1.5 parts of 203 tackifying resin, agar 2.6
Part, 8 parts of poly- diethanol are mixed with to obtain binding agent；
(4) be calculated by weight as by 65 parts of ethylene propylene diene rubber, 32 parts of acrylate rubber, 13 parts of nano imvite,
25 parts of age resistor, 25 parts of vulcanizing agent, 35 parts of dichloromethane, 30 parts of white carbon, 2.6 parts of ferrocene, 35.5 parts of Colophonium, binding agent 26
Part is hot-forming after adding mixing 6h at a temperature of 110 DEG C in muller to obtain first seal；
(5) count by weight by 33 parts of silicone rubber, 52 parts of nitrile rubber, 16.2 parts of politef, 13 parts of age resistor,
15 parts of vulcanizing agent, 25 parts of dichloromethane, 15.8 parts of white carbon, 7 parts of stearic acid, 5.5 parts of octadecyl acrylate, 20 parts of plasticizer,
12.4 parts of Colophonium, 16 parts of binding agent are hot-forming after adding mixing 6h at a temperature of 125 DEG C in muller to obtain second seal.
Embodiment two
A kind of small-sized all-insulation inflation looped network cabinet as described in embodiment one, the preparation method of described sealing mechanism is:
(1) count 20 parts of acetone, 17.8 parts of n- myristyl trichlorosilane, dioctyl sodium sulphosuccinate by weight
3.5 parts, 10 parts of diphenylamines, 2- (2- hydroxy-5-methyl base -3- ter .- butylbenzyl) -4- methyl-6-tert butyl phenylacetic acid ester 4
Part is mixed with to obtain age resistor；
(2) cumyl peroxide, trithiocyanuric acid, methanol mix to obtain vulcanizing agent by the ratio of weight and number of 3:1.7:2.2；
(3 count by weight by 8 parts of dichloromethane, 5.2 parts of tetraisocyanate, 2 parts of 203 tackifying resin, 1.3 parts of agar,
7 parts of poly- diethanol is mixed with to obtain binding agent；
(4) be calculated by weight as by 63 parts of ethylene propylene diene rubber, 28 parts of acrylate rubber, 12 parts of nano imvite,
22 parts of age resistor, 28 parts of vulcanizing agent, 37 parts of dichloromethane, 29 parts of white carbon, 4 parts of ferrocene, 28 parts of Colophonium, 23 parts of binding agent add
Enter in muller hot-forming first seal after mixing 6h at a temperature of 110 DEG C；
(5) count 34 parts of silicone rubber, 54 parts of nitrile rubber, 17 parts of politef, 12 parts of age resistor, sulfur by weight
14 parts of agent, 23 parts of dichloromethane, 17.5 parts of white carbon, 6 parts of stearic acid, 5 parts of octadecyl acrylate, 21 parts of plasticizer, Colophonium
14 parts, 17 parts of binding agent add hot-forming second seal after mixing 7h at a temperature of 135 DEG C in mullers.
Embodiment three
A kind of small-sized all-insulation inflation looped network cabinet as described in embodiment one, the preparation method of described sealing mechanism is:
(1) count 21.4 parts of acetone, 16.5 parts of n- myristyl trichlorosilane, dioctyl sodium sulfosuccinates acid by weight
6.7 parts of sodium, 6 parts of diphenylamines, 2- (2- hydroxy-5-methyl base -3- ter .- butylbenzyl) -4- methyl-6-tert butyl phenylacetic acid ester
1.3 parts are mixed with to obtain age resistor；
(2) cumyl peroxide, trithiocyanuric acid, methanol mix to obtain vulcanizing agent by the ratio of weight and number of 3:1.7:2.2；
(3 count by weight by 9 parts of dichloromethane, 3.8 parts of tetraisocyanate, 2.2 parts of 203 tackifying resin, 2 parts of agar,
9 parts of poly- diethanol is mixed with to obtain binding agent；
(4) be calculated by weight as by 68 parts of ethylene propylene diene rubber, 36 parts of acrylate rubber, 13 parts of nano imvite,
27 parts of age resistor, 22 parts of vulcanizing agent, 33 parts of dichloromethane, 31 parts of white carbon, 0.5 part of ferrocene, 33 parts of Colophonium, 27 parts of binding agent
Add hot-forming first seal after mixing 7h at a temperature of 110 DEG C in muller；
(5) count by weight by 31.7 parts of silicone rubber, 45 parts of nitrile rubber, 16 parts of politef, 14 parts of age resistor,
13 parts of vulcanizing agent, 26 parts of dichloromethane, 17 parts of white carbon, 8 parts of stearic acid, 4 parts of octadecyl acrylate, 21.6 parts of plasticizer, pine
13 parts of perfume, 16 parts of binding agent are hot-forming after adding mixing 6h at a temperature of 130 DEG C in mullers to obtain second seal.
Example IV
A kind of small-sized all-insulation inflation looped network cabinet as described in embodiment one, the preparation method of described sealing mechanism is:
(1) count 25 parts of acetone, 20 parts of n- myristyl trichlorosilane, dioctyl sodium sulphosuccinate 8 by weight
Part, 12 parts of diphenylamines, 5 parts of 2- (2- hydroxy-5-methyl base -3- ter .- butylbenzyl) -4- methyl-6-tert butyl phenylacetic acid ester mix
Conjunction is prepared into age resistor；
(2) cumyl peroxide, trithiocyanuric acid, methanol mix to obtain vulcanizing agent by the ratio of weight and number of 3:1.7:2.2；
(3 count 10 parts of dichloromethane, 8 parts of tetraisocyanate, 3 parts of 203 tackifying resin, 3 parts of agar by weight, gather
10 parts of diethanol is mixed with to obtain binding agent；
(4) be calculated by weight as by 70 parts of ethylene propylene diene rubber, 40 parts of acrylate rubber, 15 parts of nano imvite,
30 parts of age resistor, 32 parts of vulcanizing agent, 38 parts of dichloromethane, 35 parts of white carbon, 5 parts of ferrocene, 38 parts of Colophonium, 28 parts of binding agent add
Enter in muller hot-forming first seal after mixing 8h at a temperature of 120 DEG C；
(5) count silicone rubber 30-36 part, nitrile rubber 42-58 part, politef 15-18 part by weight, prevent always
Agent 10-15 part, vulcanizing agent 12-16 part, dichloromethane 21-27 part, white carbon 15-18 part, stearic acid 5-9 part, acrylic acid 18
Ester 3-6 part, plasticizer 18-22 part, Colophonium 10-15 part, binding agent 15-18 part add the temperature at 120-140 DEG C in muller
Hot-forming second seal after lower mixing 5-8h.
Embodiment five
A kind of small-sized all-insulation inflation looped network cabinet as described in embodiment one, the preparation method of described sealing mechanism is:
(1) count 18 parts of acetone, 16 parts of n- myristyl trichlorosilane, dioctyl sodium sulphosuccinate 2 by weight
Part, 5 parts of diphenylamines are mixed with to obtain age resistor；
(2) cumyl peroxide, trithiocyanuric acid, methanol mix to obtain vulcanizing agent by the ratio of weight and number of 3:1.7:2.2；
(3) count 5 parts of dichloromethane, 2 parts of tetraisocyanate, 1 part of 203 tackifying resin, 1 part of agar by weight, gather
6 parts of diethanol is mixed with to obtain binding agent；
(4) be calculated by weight as by 60 parts of ethylene propylene diene rubber, 25 parts of acrylate rubber, 10 parts of nano imvite,
20 parts of age resistor, 18 parts of vulcanizing agent, 32 parts of dichloromethane, 28 parts of white carbon, 0.2 part of ferrocene, 26 parts of Colophonium, 22 parts of binding agent
Add hot-forming first seal after mixing 5h at a temperature of 100 DEG C in muller；
(5) count 30 parts of silicone rubber, 42 parts of nitrile rubber, 15 parts of politef, 10 parts of age resistor, sulfur by weight
12 parts of agent, 21 parts of dichloromethane, 15 parts of white carbon, 5 parts of stearic acid, 3 parts of octadecyl acrylate, 18 parts of plasticizer, Colophonium 10
Part, 15 parts of binding agent add hot-forming second seal after mixing 5h at a temperature of 120 DEG C in mullers.
Claims (7)
1. a kind of small-sized all-insulation inflation looped network cabinet, it is characterized by, it is divided into six including in cabinet and cabinet door, cabinet by dividing plate
Individual module placement region, is provided with a fixing drawer, cabinet side is provided with splicing projection, opposite side in each module placement region
Corresponding is provided with splicing groove, is provided with splicing tunnel, splicing tunnel is connected with cabinet, spells in splicing projection and splicing groove
Connect projection and be provided with end cap with splicing groove；
It is provided with sealing mechanism, described sealing mechanism includes first seal and second seal between described cabinet and cabinet door, the
One sealing member includes first seal main body, is provided with annular seal space in first seal main body, and annular seal space is from the outside to the core successively by
One annular seal space, the second annular seal space and the 3rd annular seal space composition, first annular seal space is truncated cone-shaped structure, the second annular seal space and the 3rd close
Envelope chamber is cylindrical structure, and the 3rd sealing resonator end surface outwardly forms reinforcing projection, and the diameter d1 of the second annular seal space is more than the
The diameter d2 of three annular seal spaces, described second seal includes fixing end and inserted terminal, and fixing end is cylindrical structure, inserted terminal
Shape, structure, size are all identical with annular seal space, and first seal is fixed on cabinet, and second seal is fixed in cabinet door, the
Plug-type being fixed in first seal of two sealing members seals.
2. a kind of small-sized all-insulation inflation looped network cabinet as claimed in claim 1, it is characterized by, the composition of described first seal
Composition is calculated by weight as:
Ethylene propylene diene rubber 60-70 part, acrylate rubber 25-40 part, nano imvite 10-15 part, age resistor 20-30 part,
Vulcanizing agent 18-32 part, dichloromethane 32-38 part, white carbon 28-35 part, ferrocene 0.2-5 part, Colophonium 26-38 part, binding agent
22-28 part.
3. a kind of small-sized all-insulation inflation looped network cabinet as claimed in claim 2, it is characterized by, the composition of described second seal
Composition is calculated by weight as:
Silicone rubber 30-36 part, nitrile rubber 42-58 part, politef 15-18 part, age resistor 10-15 part, vulcanizing agent 12-16
Part, dichloromethane 21-27 part, white carbon 15-18 part, stearic acid 5-9 part, octadecyl acrylate 3-6 part, plasticizer 18-22 part,
Colophonium 10-15 part, binding agent 15-18 part.
4. a kind of small-sized all-insulation inflation looped network cabinet as claimed in claim 2, it is characterized by, described age resistor is by weight
Meter is by acetone 18-25 part, n- myristyl trichlorosilane 16-20 part, dioctyl sodium sulphosuccinate 2-8 part, diphenylamines 5-12
Part, 2- (2- hydroxy-5-methyl base -3- ter .- butylbenzyl) -4- methyl-6-tert butyl phenylacetic acid ester 0-5 part be mixed with and
Become.
5. a kind of small-sized all-insulation inflation looped network cabinet as claimed in claim 2, it is characterized by, described vulcanizing agent is by peroxidating two
Isopropylbenzene, trithiocyanuric acid, methanol are mixed by the ratio of weight and number of 3:1.7:2.2.
6. a kind of small-sized all-insulation inflation looped network cabinet as claimed in claim 2, it is characterized by, described adhesive is by weight
Meter is by dichloromethane 5-10 part, tetraisocyanate 2-8 part, 203 tackifying resin 1-3 parts, agar 1-3 part, poly- diethanol 6-10 part
It is mixed with and form.
7. a kind of small-sized all-insulation inflation looped network cabinet as claimed in claim 2, it is characterized by, the preparation of described first seal
Method is: above-mentioned each component is added hot-forming after mixing 5-8h at a temperature of 100-120 DEG C in muller；Described second
The preparation method of sealing member is: above-mentioned each component is added hot pressing after mixing 5-8h at a temperature of 120-140 DEG C in muller
Molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784443.3A CN106374379B (en) | 2016-08-31 | 2016-08-31 | A kind of small-sized all-insulation inflation looped network cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610784443.3A CN106374379B (en) | 2016-08-31 | 2016-08-31 | A kind of small-sized all-insulation inflation looped network cabinet |
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| CN106374379A true CN106374379A (en) | 2017-02-01 |
| CN106374379B CN106374379B (en) | 2018-06-19 |
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ID=57899473
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19737430C2 (en) * | 1997-08-21 | 2001-07-19 | Siemens Ag | Electrical coupling element as contact bushing for metal-encapsulated, gas-insulated functional areas |
| CN203367848U (en) * | 2013-07-26 | 2013-12-25 | 中国西电集团公司 | Sealing door of middle and low voltage inflation switch cabinet sealing box body |
| CN203423881U (en) * | 2013-07-04 | 2014-02-05 | 上海恩韦司信息系统有限公司 | Positive pressure explosion-proof cabinet |
| CN205489242U (en) * | 2016-01-08 | 2016-08-17 | 中能电气（福清）有限公司 | Cabinet is aerifyd in extension of totally enclosed side of all insulation |
-
2016
- 2016-08-31 CN CN201610784443.3A patent/CN106374379B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19737430C2 (en) * | 1997-08-21 | 2001-07-19 | Siemens Ag | Electrical coupling element as contact bushing for metal-encapsulated, gas-insulated functional areas |
| CN203423881U (en) * | 2013-07-04 | 2014-02-05 | 上海恩韦司信息系统有限公司 | Positive pressure explosion-proof cabinet |
| CN203367848U (en) * | 2013-07-26 | 2013-12-25 | 中国西电集团公司 | Sealing door of middle and low voltage inflation switch cabinet sealing box body |
| CN205489242U (en) * | 2016-01-08 | 2016-08-17 | 中能电气（福清）有限公司 | Cabinet is aerifyd in extension of totally enclosed side of all insulation |
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| Publication number | Publication date |
|---|---|
| CN106374379B (en) | 2018-06-19 |
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Inventor after: Zhou Guigen Inventor after: Zhou Tao Inventor after: Dai Yonghan Inventor before: Li Heng Inventor before: Dai Yonghan |
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