CN104401336A - Anti-fog-flashover transformation method for locomotive - Google Patents
Anti-fog-flashover transformation method for locomotive Download PDFInfo
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- CN104401336A CN104401336A CN201410764927.2A CN201410764927A CN104401336A CN 104401336 A CN104401336 A CN 104401336A CN 201410764927 A CN201410764927 A CN 201410764927A CN 104401336 A CN104401336 A CN 104401336A
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- locomotive
- rubber
- rubber strip
- coating
- silicone rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Insulators (AREA)
Abstract
The invention discloses an anti-fog-flashover transformation method for a locomotive. The anti-fog-flashover transformation method is characterized in that the top cover, on high voltage equipment is mounted, of the locomotive is made of an insulating material, high-voltage room temperature vulcanized silicone rubber is used for coating, then silicone rubber anti-skid particles are thrown, an arrester and a top line-outgoing part and a bottom mounting flange of a high-voltage sleeve are protected by special silicone rubber insulation protecting covers which can be dismounted and reused; the protecting covers of the arrester and the top line-outgoing part of the high-voltage sleeve are sealed by waterproof self-adhesive tapes, so that airtightness can be ensured; the protecting covers of the arrester and the bottom mounting flange of the high-voltage sleeve are bonded with RTV adhesive; the bottoms of the protecting covers and the top cover are sealed with neutral silicone adhesive. Through the method, high-voltage live equipment at the top of the locomotive is protected, the grade of insulation between the high-voltage live equipment at the top of the locomotive can be improved to 50 kV, the running reliability and safety of the locomotive in fog days can be improved, and a technology platform for anti-fog-flashover design can be provided for the follow-up locomotive design.
Description
Technical field
The present invention relates to the antifog sudden strain of a muscle remodeling method of a kind of railway locomotive, belong to railway locomotive technical field.
Background technology
In recent years, the haze weather in China's overwhelming majority area grows in intensity, pollutants in air increase the decline causing the class of insulation between air, the as easy as rolling off a log power locomotive top high voltage alive equipment that causes is to the exposed metal position of roof and the low position electric discharge of the class of insulation, greatly have impact on the normal utilization of electric locomotive, bring hidden danger to electric locomotive application safety.At present, the electric locomotive used is arranged on the cabling on cable rack position of lightning arrester on locomotive header and bushing and bottom mounting flange is all exposed aerial, and locomotive header is all-metal goods.When haze is not serious, electric locomotive needs staff to purge dust at roof after going to destination.When haze is serious, electric locomotive often runs thirty or forty kilometer, just needs to clean locomotive header high voltage component with purging medium.Locomotive normal work time, lightning arrester on locomotive header and bushing cabling on cable rack position are with the high-tension current of 25kV, in the pollutants suspended in the air such as haze weather, dust and sand weather is many, the class of insulation between lightning arrester and bushing cabling on cable rack position and its mounting flange and locomotive header just can be caused to decline, easily cause cabling on cable rack position to bottom mounting flange or the electric discharge of other metal objects, to locomotive operation safety with hidden danger.
Summary of the invention
The object of the invention is to the deficiency overcoming prior art, by the class of insulation adopting a kind of insulating material to strengthen lightning arrester and bushing cabling on cable rack position and its mounting flange on locomotive header and top cover, the electric clearance of effective raising electrification in high voltage part and top cover conduction region, strengthens the ability of the antifog sudden strain of a muscle of railway locomotive further.
The object of the invention is to be achieved through the following technical solutions, the antifog sudden strain of a muscle remodeling method of a kind of railway locomotive, is characterized in that being realized by following steps:
Step 1, protection locomotive header high voltage component mount pad
Dedicated hood or the mount pad surface of rubber belt material to locomotive header high voltage component is adopted to seal;
Step 2, descaling machine covering for roofs metal surface
First use the greasy dirt on purging medium clean metal surface, then with metal brush by metal surface hacking one time gently, finally with towel, dust is thoroughly cleaned out;
Step 3, brushing coupling tackifier
Evenly apply coupling tackifier thin layer in locomotive header metal surface, ensure that whole locomotive header metal substrate surface all covers one deck coupling tackifier, in normal temperature situation, the natural seasoning time is 45 minutes to 1 hour (ambient temperature 15 degree of-35 degree);
Step 4, bonding forming rubber strip
L-type rubber strip is adopted at locomotive header frame place, commissure adopts Ω type rubber strip, first by bonding bottom surface again wiping one time, with pipe glue extruder, high pressure sealing silaatic is squeezed into bottom rubber strip, then rubber strip is evenly flattened, ensure that the sealant thickness bottom rubber strip is even, commissure bonding Ω type rubber strip, the length equaling weld seam everywhere by Ω type rubber strip length carrys out cutting, first smears silicone rubber for sealing in welded joints, then Ω shape rubber strip pressure in welded joints;
The batch mixing of step 5, high pressure room temperature vulcanized silicone rubber
In rubber coating: the ratio of curing agent=100:3, poured at twice in rubber coating bucket by curing agent CAT-A and CAT-B, slowly stir with mixer, abundant mixing time is 5 minutes-10 minutes;
Step 6, brushing high pressure room temperature vulcanized silicone rubber
Pour the rubber coating stirred into locomotive roof, with scraper plate, coating is scraped evenly, ensure that thickness is at more than 2mm;
Step 7, shed anti-slip rubber particle
After having brushed high pressure room temperature vulcanized silicone rubber, 2-3 is little sheds antiskid particles constantly;
Step 8, rubber coating solidify
Room temperture rubber vulcanization surface drying time 3-6 hour, cure time 12 hours, complete cure time is 24 hours;
Step 9, cleaning racked rubber coating
After rubber coating solidifies completely, cleaning to be carried out to it and arrange, with wallpaper cutter, the rubber that rubber strip edge flows out be removed, remove mount pad protection adhesive tape, check rubber strip abutting edge, fill if there is scarce material place application sealant to supplement.
Mounting flange protecting jacket bottom step 10, zinc oxide surge arresters and bushing
RTV adhesives is used to make bottom mounting flange insulating sheath bonding with car body; .
In order to realize object of the present invention better, the purging medium described in step 2 adopts n-Amyl acetate or alcohol.
In order to realize object of the present invention better, anti-slip rubber particle such as the fruit granule of shedding described in step 7 occurs that sinking should be shed again.
The invention has the beneficial effects as follows, locomotive roof high voltage alive equipment is made to obtain protection by the antifog sudden strain of a muscle remodeling method of railway locomotive of the present invention, locomotive header is by brushing high pressure room temperature vulcanized silicone rubber and shed anti-slip rubber particle and make the class of insulation between locomotive roof high voltage alive equipment and locomotive header at least bring up to 50kV, improve reliability that locomotive uses under haze weather, safety, also for follow-up locomotive design provides the technology platform of Anti-fog design.
Detailed description of the invention
For making goal of the invention of the present invention, technical scheme and advantage clearly, carry out clear intactly describing to technical scheme of the present invention below, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The antifog sudden strain of a muscle remodeling method of railway locomotive of the present invention uses insulating material to the top cover of locomotive installation high-voltage equipment, namely, application is carried out with hyperbaric chamber temperature vulcanizable silicone rubber coating, silaatic antiskid particles is shed after application, silicon special rubber insulation protecting jacket is used to protect to the cabling on cable rack position of lightning arrester and bushing and bottom mounting flange, protecting jacket is detachable and reusable, lightning arrester and bushing cabling on cable rack position protecting jacket adopt water-proof self-adhesion rubber belt sealing, are used for ensureing leak tightness.Bottom lightning arrester and bushing, mounting flange and protecting jacket adopt RTV adhesives to bond, and adopt neutral silicone adhesive to seal bottom protecting jacket with top cover, ensure the detachable of waterproof and protecting jacket.Explain in passing, RTV adhesives is a kind of coating, and its solid contents is lower than 50%, and its cohesive force is more weak, and sheath can be made to be easy to take off when dismantling, and plays the effect of an auxiliary bonding when normal use.
Concrete steps are:
Step 1, protection locomotive header high voltage component mount pad, adopt dedicated hood or the mount pad surface of rubber belt material to locomotive header high voltage component to seal;
Step 2, descaling machine covering for roofs metal surface, first with the greasy dirt of n-Amyl acetate or alcohol washes metal surface, then with metal brush by metal surface hacking one time gently, finally thoroughly clean out dust with towel;
Step 3, brushing coupling tackifier, evenly apply TCK-2662 tackifier thin layer in locomotive header metal surface by modes such as brushing, sprayings, forbidden there is trickling phenomenon.If note occurring crack or many white powders in film, overweight coating is described, meeting impact effect, again brush after should adopting banana oil wiped clean, ensure whole locomotive header metal substrate surface all uniform fold one deck coupling tackifier, in normal temperature situation, the natural seasoning time is 45 minutes to 1 hour (ambient temperature 15 degree of-35 degree);
Step 4, bonding forming rubber strip, due to high pressure room temperature vulcanized silicone rubber, when not dry, have flowing power outside to top cover for preventing high pressure room temperature vulcanized silicone rubber from trickling when blade coating, adopt L-type rubber strip at locomotive header frame place, commissure adopts Ω type rubber strip; First by bonding bottom surface again wiping one time, with pipe glue extruder, high pressure sealing silaatic is squeezed into bottom rubber strip, then rubber strip is evenly flattened, ensure that the sealant thickness bottom rubber strip is even, note joint caulking gum transition; Commissure bonding Ω type rubber strip, Ω type rubber strip is cut into corresponding length by the length according to weld seam everywhere, first smears silicone rubber for sealing in welded joints, then Ω shape rubber strip pressure in welded joints, ensure that Ω type rubber strip inside is full of, and ensures do not have cavity place;
The batch mixing of step 5, high pressure room temperature vulcanized silicone rubber, in rubber coating: the ratio of curing agent=100:3, curing agent CAT-A and CAT-B is poured at twice in rubber coating bucket, slowly stir with mixer, the speed that attentional manipulation stirs, avoid curing agent to spill, fully stir 5 minutes, do not exceed at most 10 minutes; Curing agent CAT-A plays catalytic action, makes silaatic glue connect polymerization reaction, can strengthen the cohesive force of silaatic and steel structure of car roof; Curing agent CAT-B plays solidification, can accelerate sulfuration and the solidification of silaatic; Two kinds of curing agent, with the use of the vulcanizable cures time shorten that can make high pressure room temperature vulcanized silicone rubber, strengthen the cohesive force of silaatic and steel structure.
Step 6, brushing high pressure room temperature vulcanized silicone rubber, carry out, pour the rubber coating stirred into locomotive roof from edge, scrapes evenly with scraper plate by coating, and ensure that thickness is at more than 2mm, during operation, workman need put shoe cover, avoids roof surface of making dirty;
Step 7, shed anti-slip rubber particle, after having brushed high pressure room temperature vulcanized silicone rubber, 2-3 is little sheds antiskid particles constantly; As particle occurs that sinking should be shed again;
Step 8, rubber coating solidify, room temperture rubber vulcanization surface drying time 3-6 hour, cure time 12 hours, and complete cure time is 24 hours;
Step 9, cleaning racked rubber coating, after rubber coating solidifies completely, will carry out cleaning to it and arrange, with wallpaper cutter, the rubber that rubber strip edge flows out is removed, remove mount pad protection adhesive tape, check rubber strip abutting edge, fill if there is scarce material place application sealant to supplement;
Mounting flange protecting jacket bottom step 10, zinc oxide surge arresters and bushing, uses RTV adhesives to make bottom mounting flange insulating sheath bonding with car body.
Claims (3)
1. the antifog sudden strain of a muscle remodeling method of railway locomotive, is characterized in that being realized by following steps:
Step 1, protection locomotive header high voltage component mount pad
Dedicated hood or the mount pad surface of rubber belt material to locomotive header high voltage component is adopted to seal;
Step 2, descaling machine covering for roofs metal surface
First use the greasy dirt on purging medium clean metal surface, then with metal brush by metal surface hacking one time gently, finally with towel, dust is thoroughly cleaned out;
Step 3, brushing coupling tackifier
Evenly apply coupling tackifier thin layer in locomotive header metal surface, ensure that whole locomotive header metal substrate surface all covers one deck coupling tackifier, in normal temperature situation, the natural seasoning time is 45 minutes to 1 hour (ambient temperature 15 degree of-35 degree);
Step 4, bonding forming rubber strip
L-type rubber strip is adopted at locomotive header frame place, commissure adopts Ω type rubber strip, first by bonding bottom surface again wiping one time, with pipe glue extruder, high pressure sealing silaatic is squeezed into bottom rubber strip, then rubber strip is evenly flattened, ensure that the sealant thickness bottom rubber strip is even, commissure bonding Ω type rubber strip, the length equaling weld seam everywhere by Ω type rubber strip length carrys out cutting, first smears silicone rubber for sealing in welded joints, then Ω shape rubber strip pressure in welded joints;
The batch mixing of step 5, high pressure room temperature vulcanized silicone rubber
In rubber coating: the ratio of curing agent=100:3, poured at twice in rubber coating bucket by curing agent CAT-A and CAT-B, slowly stir with mixer, abundant mixing time is 5 minutes-10 minutes;
Step 6, brushing high pressure room temperature vulcanized silicone rubber
Pour the rubber coating stirred into locomotive roof, with scraper plate, coating is scraped evenly, ensure that thickness is at more than 2mm;
Step 7, shed anti-slip rubber particle
After having brushed high pressure room temperature vulcanized silicone rubber, 2-3 is little sheds antiskid particles constantly;
Step 8, rubber coating solidify
Room temperture rubber vulcanization surface drying time 3-6 hour, cure time 12 hours, complete cure time is 24 hours;
Step 9, cleaning racked rubber coating
After rubber coating solidifies completely, cleaning to be carried out to it and arrange, with wallpaper cutter, the rubber that rubber strip edge flows out be removed, remove mount pad protection adhesive tape, check rubber strip abutting edge, if defectiveness place application sealant supplements fill.
Mounting flange protecting jacket bottom step 10, zinc oxide surge arresters and bushing
RTV adhesives is used to make bottom mounting flange insulating sheath bonding with car body.
2. the antifog sudden strain of a muscle remodeling method of railway locomotive according to claim 1, is characterized in that the purging medium described in step 2 is n-Amyl acetate or alcohol.
3. the antifog sudden strain of a muscle remodeling method of railway locomotive according to claim 1, is characterized in that anti-slip rubber particle such as the fruit granule of shedding described in step 7 occurs that sinking will be shed again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764927.2A CN104401336B (en) | 2014-12-12 | 2014-12-12 | The antifog sudden strain of a muscle remodeling method of railway locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764927.2A CN104401336B (en) | 2014-12-12 | 2014-12-12 | The antifog sudden strain of a muscle remodeling method of railway locomotive |
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| Publication Number | Publication Date |
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| CN104401336A true CN104401336A (en) | 2015-03-11 |
| CN104401336B CN104401336B (en) | 2016-07-20 |
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| CN201410764927.2A Expired - Fee Related CN104401336B (en) | 2014-12-12 | 2014-12-12 | The antifog sudden strain of a muscle remodeling method of railway locomotive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703451A (en) * | 2020-06-24 | 2020-09-25 | 天津电力机车有限公司 | Harmonious electric locomotive roof insulation reinforcing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020108319A1 (en) * | 2000-09-19 | 2002-08-15 | Pierre Bernard | Stud for retaining insulating panels |
| JP2006032444A (en) * | 2004-07-13 | 2006-02-02 | Hitachi Ltd | Reactor for vehicle |
| CN102709006A (en) * | 2012-06-01 | 2012-10-03 | 华北电力大学 | Fog flashover and pollution flashover protective device for insulator at top of locomotive |
| CN203324734U (en) * | 2013-07-03 | 2013-12-04 | 河北工业大学 | Anti-pollution-flashover device of multiple-unit train |
-
2014
- 2014-12-12 CN CN201410764927.2A patent/CN104401336B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020108319A1 (en) * | 2000-09-19 | 2002-08-15 | Pierre Bernard | Stud for retaining insulating panels |
| JP2006032444A (en) * | 2004-07-13 | 2006-02-02 | Hitachi Ltd | Reactor for vehicle |
| CN102709006A (en) * | 2012-06-01 | 2012-10-03 | 华北电力大学 | Fog flashover and pollution flashover protective device for insulator at top of locomotive |
| CN203324734U (en) * | 2013-07-03 | 2013-12-04 | 河北工业大学 | Anti-pollution-flashover device of multiple-unit train |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111703451A (en) * | 2020-06-24 | 2020-09-25 | 天津电力机车有限公司 | Harmonious electric locomotive roof insulation reinforcing method |
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| CN104401336B (en) | 2016-07-20 |
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