CN114482818A - Locomotive converter box with E15 fire-resistant integrality - Google Patents
Locomotive converter box with E15 fire-resistant integrality Download PDFInfo
- Publication number
- CN114482818A CN114482818A CN202111641933.5A CN202111641933A CN114482818A CN 114482818 A CN114482818 A CN 114482818A CN 202111641933 A CN202111641933 A CN 202111641933A CN 114482818 A CN114482818 A CN 114482818A
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 30
- 230000009970 fire resistant effect Effects 0.000 title claims description 16
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 239000011521 glass Substances 0.000 claims abstract description 26
- 239000000565 sealant Substances 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 239000003063 flame retardant Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000006260 foam Substances 0.000 description 7
- 230000007480 spreading Effects 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/30—Coverings, e.g. protecting against weather, for decorative purposes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
- E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Special Wing (AREA)
Abstract
The invention relates to a locomotive converter fire prevention technology, in particular to a locomotive converter box body with E15 fire resistance integrity. In order to meet the requirement of the electrical equipment of the rolling stock on the fire resistance, the invention realizes the fire resistance integrity of the rolling stock converter box body to meet the requirement of E15 by reasonably applying fireproof materials such as fireproof coating, fireproof expansion strips, fireproof sealant, inorganic high-temperature-resistant glass and the like on the premise of not changing the basic design structure of the existing converter box body. The upper, lower, left and right sides of the box body adopt stainless steel plates as skin plates; the door plate is made of an aluminum plate, and the inner side of the door plate is sprayed with primer and then is sprayed with intumescent fire-retardant coating; fireproof sealant is coated at the splicing position of the converter box body or the welding seam between plates; the observation window adopts inorganic high temperature resistant glass as a main material, the fireproof expansion strips are pasted on the high temperature resistant glass, the sealing rubber strips are pasted on the four sides of the inner side and the outer side of the high temperature resistant glass, the high temperature resistant glass is installed on the door plate through the cover plate, and the fireproof sealant is smeared at the installation joint.
Description
Technical Field
The invention relates to a locomotive converter fire prevention technology, in particular to a locomotive converter box body with E15 fire resistance integrity.
Background
With the rapid development of rail transit, the speed of rolling stock is continuously improved, the safety problem of vehicle operation is concerned, and the prevention of fire in the process of vehicle operation is also important to the safety of vehicle operation.
The current transformer serving as a core component of the rolling stock has a plurality of internal electrical components and compact structural arrangement, and can cause fire in a current transformer cabinet when the electrical components are in failure or high-voltage discharge is in failure. The interior of the rolling stock is provided with a lot of facilities, and a fire disaster can cause very dangerous results, so that the control of the fire disaster spread is an effective method for preventing the fire in the converter from spreading to other equipment in the rolling stock.
Rail transit rolling stock installations currently implement the EN 45545 series standard in which it is required to install fire barriers or partitions between the electrical equipment and the passenger or working crew area, and the housing of the electrical equipment can also be designed as a means of providing such protection against the impact of the passenger and/or working crew area in the event of a fire. A traction converter belongs to high-power equipment in a locomotive, a converter box body is a shell of electrical equipment, and a corresponding fireproof barrier design is needed to realize the fireproof performance of the converter. According to the standard requirements, the locomotive converter has to meet the requirement of 15 minutes (E15) of fire resistance integrity at most.
In the prior art, the longitudinal size of the locomotive converter is large, the number of internal components is large, the weight is large, in order to ensure the strength of the converter box body, a main frame and a skin plate of the box body are made of steel plate materials, but in order to meet the integral weight limitation of the converter and consider the maintenance property, a door plate of the box body is made of 2mm aluminum alloy materials so as to reduce the weight and facilitate the disassembly and assembly. The handle, the lock and the like on the door panel are installed and fixed by adopting holes or rivets and the like; and a transparent organic glass plate observation window is reserved on the door plate of the position needing to be observed. And (3) coating a sealant or sealing the splicing gaps such as welding seams or the like by adopting a rubber sealing strip aiming at the converter box body with the sealing requirement. The surfaces of the box body and the door panel are subjected to paint spraying treatment, and the paint meets the flame retardant rating of HL2 in EN 45545-2.
And the peripheral skin plates, the front door plate, the rear door plate and even the main body frame of the box body of the converter are designed by adopting aluminum alloy materials due to the weight reduction requirement of the whole converter.
The fireproof performance of a steel plate used by the locomotive converter box body skin in the prior art can reach more than E15, but the fireproof performance of an aluminum alloy door plate of the converter box body can not reach the requirement of E15, and positions such as a box body welding line, a gap formed by assembling the door plate and the box body, an organic glass observation window, a rivet hole and the like do not have fireproof sealing performance, so that the converter box body can not meet the fireproof performance of the E15 grade of a railway vehicle fireproof partition product. Once a fire disaster occurs inside a converter product, the blocking capability of the converter box body structure on flame spread is insufficient, the flame inside the converter can be blown out through gaps between the box body and the door plate, or the aluminum door plate is fused, so that the flame spreads to other equipment in a vehicle, greater economic loss is caused, and even the personal safety of drivers and passengers is endangered.
Disclosure of Invention
In order to meet the requirement of the electrical equipment of the rolling stock on the fire resistance, the invention realizes the fire resistance integrity of the rolling stock converter box body to meet the requirement of E15 by reasonably applying fireproof materials such as fireproof coating, fireproof expansion strips, fireproof sealant, inorganic high-temperature-resistant glass and the like on the premise of not changing the basic design structure of the existing converter box body.
The invention is realized by adopting the following technical scheme: a locomotive converter box with E15 fire-resistant integrity, the upper, lower, left and right sides of the converter box adopt stainless steel plates as skin plates; the front door plate and the rear door plate are made of aluminum plates, and the inner side of the door plate is sprayed with primer and then is sprayed with intumescent fire-retardant coating; fireproof sealant is coated at the splicing position of the converter box body or the welding seam between plates; the door plate or the skin plate is provided with an observation window, the observation window adopts inorganic high-temperature-resistant glass as a main body material, a first fireproof expansion strip is pasted on the high-temperature-resistant glass, first sealing rubber strips are pasted on four sides of the inner side and the outer side of the high-temperature-resistant glass, the high-temperature-resistant glass pasted with the first fireproof expansion strip and the first sealing rubber strips is installed on the door plate or the skin plate through a stainless steel cover plate, and fireproof sealant is smeared at the installation joint.
The expansion type fireproof coating expands and foams when a fire disaster happens to form a foam layer, and the foam layer not only isolates oxygen, but also can delay the speed of heat and fire to the protected substrate. The process of generating the foam layer by expanding and foaming the coating is endothermic reaction due to the expansion of the volume, and simultaneously consumes a large amount of heat, thereby being beneficial to reducing the temperature of the structure and preventing the fire from spreading rapidly. The fire-resistant integrity of the aluminum door panel sprayed with the fireproof coating in the scheme of the invention can reach E15.
When a fire disaster happens in the converter, the high-temperature-resistant glass can resist fire for 30 minutes, and the fireproof expansion strip can rapidly expand at the high temperature of flame to block the flame spreading path. The fireproof sealant at the gap can expand and block the flame when meeting fire, thereby ensuring that the flame cannot escape.
Fireproof sealant is coated at the splicing position of the converter box body or the welding seam between plates, so that no gap is ensured in the converter box body, and when a fire disaster occurs in the converter, the fireproof sealant at the gap expands and effectively blocks flame, so that the flame cannot be blown out.
Furthermore, sealing grooves are formed in the inner side of the door panel along four edges and used for mounting second sealing rubber strips, a baffle of each sealing groove is of a U-shaped structure, the inward plane side of each baffle is used for adhering a second fireproof expansion strip, and the outward plane side of each baffle is used for being fixed with the door panel; after the door plate and the converter box body are assembled, the second rubber sealing strip on the door plate is in contact with the box body frame to play a role in sealing; certain gaps are reserved between the second fireproof expansion strips and the box body frame, and the second fireproof expansion strips are not in contact with the box body frame after installation.
After the door plate and the converter box body are assembled, the sealing rubber strip on the door plate is contacted with the box body frame to play a role in sealing; certain space is left between the fireproof expansion strip and the box body frame, and the fireproof expansion strip is not contacted with the box body frame after installation, so that the influence on sealing between the box body and the door plate is avoided. When a fire disaster happens in the converter, the fireproof expansion strips can expand rapidly at high temperature of flame, so that reserved gaps are filled, and a flame spreading path is blocked.
The invention has the beneficial effects that:
the scheme of the invention does not change the basic design structure and design habit of the existing converter box body, and has small realization difficulty and low cost. By reasonably applying fireproof materials such as fireproof coating, fireproof expansion strips, fireproof sealant, inorganic high-temperature-resistant glass and the like, the structural requirement of the locomotive converter box body on the fire resistance integrity E15 is met. The fire disaster which possibly occurs in the locomotive converter can be effectively prevented from spreading to other electrical equipment in the locomotive, so that the equipment is damaged, the economic loss is reduced, and the personal safety of drivers and passengers is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a converter box.
Fig. 2 is a schematic view of the outer side of a door panel of a current transformer.
FIG. 3 is a side view of a door panel.
Fig. 4 is a schematic view of the inner side of a door panel of a current transformer.
Fig. 5 is a schematic view (perspective view) of the refractory structure of the observation window.
Fig. 6 is a schematic view (front view) of the refractory structure of the observation window.
Fig. 7 is a sectional view a-a of fig. 6.
Fig. 8 is a schematic sectional view (perspective view) of a fire protection structure between a door panel and a converter case.
Fig. 9 is a schematic sectional view (in plan) of the fire protection between the door panel and the converter housing.
FIG. 10 is a schematic diagram of a fireproof structure at a gap of the box body.
1-box skin, 2-intumescent fire retardant coating, 3-door panel, 4-observation window, 5-U-shaped baffle, 6-second sealing rubber strip, 7-second fire retardant intumescent strip, 8-fire retardant sealant, 9-box frame, 10-rivet, 11-door lock, 12-door handle, 13-label, 14-door panel inner side, 15-fastener;
4-1-high temperature resistant glass, 4-2-first sealing rubber strip, 4-3-first fireproof expansion strip and 4-4-cover plate.
Detailed Description
The scheme of the invention is applied to the traction converter box body of the power concentrated motor train unit, and the fireproof performance of the converter box body can meet the standard EN 45545-3 through the design of a fireproof structure scheme: 2013 railway applications-railway vehicle fire protection-requirement of integrity E15 in part 3. The specific scheme is as follows:
the skin plate around the converter box body adopts a 2mm stainless steel plate, and the performance of the 2mm stainless steel plate can reach E60, as shown in figure 1.
The front door plate and the rear door plate of the converter box body are made of 2mm aluminum plates, the inner sides of the door plates are sprayed with 120um of primer, and then the expansion type fireproof coating SVT DG-SKN is sprayed, the total spraying thickness is 1mm, the spraying is uniform, the weak points do not exist, and the fireproof coating can expand by more than 20 times when meeting fire. The intumescent fire-retardant coating expands and foams when a fire disaster occurs to form a foam layer, the foam layer not only isolates oxygen, but also has good fire resistance, can retard the speed of heat and fire to a protected substrate, is beneficial to reducing the structure temperature and prevents the fire from spreading rapidly. The accessories such as door locks, door handles, labels and the like arranged on the door plate are all made of stainless steel materials, and non-metallic materials such as rubber, plastics and the like are avoided. After the accessory is installed on the door panel, a fireproof sealant ZZ345 is coated at all the joints, and the fireproof sealant can expand 2 times when meeting fire and block a flame spread path, which is shown in figures 2, 3 and 4.
Aiming at the part needing to be observed in the converter, an observation window with a fireproof structure is designed on a converter door plate. The observation window adopts inorganic high temperature resistant glass as a main material, and the FLEXTERM 190 fireproof expansion strip is stuck on the high temperature resistant glass, and can rapidly expand by 20 times at the high temperature of flame. Paste first sealing rubber strip at the four sides of high temperature resistant glass both sides, will paste the high temperature resistant glass who has first fire prevention inflation strip and first sealing rubber strip and pass through the stainless steel apron crimping seal and install on the door plant, fire prevention inflation strip inward flange surpasss apron edge 5mm, can block high temperature resistant glass and apron between gap department flame play after the inflation. And fireproof sealant ZZ345 is coated at the peripheral gap of the cover plate and the door plate, as shown in figures 5, 6 and 7.
The sealing groove is designed on the door plate of the converter box and used for mounting a second sealing rubber strip, the baffle of the sealing groove is designed into a U-shaped structure, the U-shaped baffle is connected and mounted with the door plate through rivets, and the plane side of the U-shaped baffle is used for pasting a FLEXTERM 190 second fireproof expansion strip. After the door plate and the converter box body are assembled, the second sealing rubber strip on the door plate is contacted with the box body frame to play a sealing role; and a gap of 1mm is reserved between the second fireproof expansion strip and the outer edge of the door plate, so that the second fireproof expansion strip is not in contact with the box body frame after installation, and the influence on the sealing between the door plate and the box body is avoided. After the door plant was installed on the box, all surpassed box frame 5mm around the fire prevention sealing strip inboard on the door plant, the fire prevention inflation strip meets the fire inflation and stretches to box frame inboard back, blocks flame and scurries out. See fig. 8 and 9.
Fireproof sealant ZZ345 is smeared at the splicing position of the converter box body and the welding line between plates, so that the converter box body is ensured to be uniformly sealed to the outer part and has no gap, and when a fire disaster happens, the fireproof sealant blocks flame from escaping through expansion. As shown in fig. 10.
In practical application, the invention can also have the following scheme:
1) the locomotive converter box body is made of a steel plate material, the door plate is made of a steel plate material, only the door plate and the box body are installed through fireproof expansion strips, and fireproof sealant is adopted for processing holes behind other gaps such as box body welding seams, so that the requirement for the fire resistance integrity of the locomotive converter box body can be met.
2) The locomotive converter box body is made of an aluminum alloy material, the inner sides of the skin plates around the box body are made of the fireproof coating, and the requirement for the fire resistance integrity of the locomotive converter box body can be met.
3) The locomotive converter box body is designed to be fireproof aiming at the situation that a local fireproof structure in the locomotive converter meets the requirement, and the local fireproof integrity requirement of the converter box body can be met.
4) Other types of fire-resistant materials with equivalent fire resistance can be selected for realization.
Claims (10)
1. A locomotive converter box body with E15 fire-resistant integrity is characterized in that the upper, lower, left and right sides of the converter box body adopt stainless steel plates as skin plates; the front door plate and the rear door plate are made of aluminum plates, and the inner side of the door plate is sprayed with primer and then is sprayed with intumescent fire-retardant coating; fireproof sealant is coated at the splicing position of the converter box body or the welding seam between plates; the door plate or the skin plate is provided with an observation window, the observation window adopts inorganic high-temperature-resistant glass as a main body material, a first fireproof expansion strip is pasted on the high-temperature-resistant glass, first sealing rubber strips are pasted on four sides of the inner side and the outer side of the high-temperature-resistant glass, the high-temperature-resistant glass pasted with the first fireproof expansion strip and the first sealing rubber strips is installed on the door plate or the skin plate through a stainless steel cover plate, and fireproof sealant is smeared at the installation joint.
2. The locomotive converter case with E15 fire resistance integrity as claimed in claim 1, wherein the inside of the door panel is provided with a sealing groove along four edges for installing a second sealing rubber strip, the baffle plate of the sealing groove is of a U-shaped structure, the inward plane side of the baffle plate is used for adhering a second fireproof expansion strip, and the outward plane side of the baffle plate is used for being fixed with the door panel; after the door plate and the converter box body are assembled, the second rubber sealing strip on the door plate is contacted with the box body frame to play a role in sealing; certain gaps are reserved between the second fireproof expansion strips and the box body frame, and the second fireproof expansion strips are not in contact with the box body frame after installation.
3. The locomotive converter case with E15 fire-resistant integrity as claimed in claim 1, wherein said door panels are provided with accessories made of stainless steel and said accessories are coated with fire-resistant sealant at all seams after being mounted on said door panels.
4. The locomotive converter case with E15 fire integrity as claimed in claim 2, wherein the second fire-resistant expansion strips are spaced 1mm from the case frame and the inside of the second fire-resistant expansion strips are 5mm beyond the case frame edge.
5. The locomotive converter case with E15 fire resistance integrity as claimed in claim 4, wherein the door panel is bent inwardly along its four edges to form a bent section, the baffle is fixed at a position spaced from the bent section, a sealing groove is formed between the connecting section of the baffle and the bent section of the door panel, and the second sealing rubber strip is installed in the sealing groove; the length of the outward plane side of the baffle is larger than that of the inward side of the baffle, and the outward side of the baffle is connected with the door panel through rivets.
6. The locomotive converter box with E15 fire-resistant integrity as claimed in any one of claims 1-5, wherein the skin plate is made of 2mm stainless steel plate, the front door plate and the rear door plate are made of 2mm aluminum plate, the inner side of the door plate is sprayed with 120um primer, then the intumescent fire-retardant coating SVT DG-SKN is sprayed, and the total spraying thickness is 1 mm.
7. The locomotive converter box with E15 fire integrity of any one of claims 1-5, wherein the first fire-resistant expansion strip is attached to the high temperature resistant glass to form a square frame, and FLEXTERM 190 fire-resistant expansion strip is adopted; the cover plate is also of a square frame structure, and the inner edge of the first fireproof expansion strip exceeds the inner edge of the cover plate by 5 mm.
8. The locomotive converter box with E15 fire integrity of claim 6, wherein the first fire-resistant expansion strip is attached to the high temperature resistant glass to form a square frame, and FLEXTERM 190 fire-resistant expansion strip is used; the cover plate is also of a square frame structure, and the inner edge of the first fireproof expansion strip exceeds the inner edge of the cover plate by 5 mm.
9. The locomotive converter box with E15 fire-resistant integrity as claimed in any one of claims 1-5, wherein a fire-proof sealant ZZ345 is applied to the gap around the cover plate and the door plate.
10. The locomotive converter box with E15 fire integrity as claimed in claim 8 wherein the fire sealant ZZ345 is applied to the gap around the cover plate and door panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641933.5A CN114482818A (en) | 2021-12-30 | 2021-12-30 | Locomotive converter box with E15 fire-resistant integrality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111641933.5A CN114482818A (en) | 2021-12-30 | 2021-12-30 | Locomotive converter box with E15 fire-resistant integrality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114482818A true CN114482818A (en) | 2022-05-13 |
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ID=81508233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111641933.5A Pending CN114482818A (en) | 2021-12-30 | 2021-12-30 | Locomotive converter box with E15 fire-resistant integrality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114482818A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090078183A (en) * | 2008-01-14 | 2009-07-17 | 주식회사 엘지화학 | Wood type fireproof door |
| CN107612288A (en) * | 2017-09-19 | 2018-01-19 | 中车永济电机有限公司 | Power-centralized type electric locomotive high-strength aluminum alloy converter box |
| CN211494051U (en) * | 2019-10-28 | 2020-09-15 | 湖南联诚轨道装备有限公司 | Locomotive partition wall door |
| CN213654659U (en) * | 2020-07-29 | 2021-07-09 | 长春长客-庞巴迪轨道车辆有限公司 | Metro vehicle end cabinet cover plate with fireproof function |
-
2021
- 2021-12-30 CN CN202111641933.5A patent/CN114482818A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090078183A (en) * | 2008-01-14 | 2009-07-17 | 주식회사 엘지화학 | Wood type fireproof door |
| CN107612288A (en) * | 2017-09-19 | 2018-01-19 | 中车永济电机有限公司 | Power-centralized type electric locomotive high-strength aluminum alloy converter box |
| CN211494051U (en) * | 2019-10-28 | 2020-09-15 | 湖南联诚轨道装备有限公司 | Locomotive partition wall door |
| CN213654659U (en) * | 2020-07-29 | 2021-07-09 | 长春长客-庞巴迪轨道车辆有限公司 | Metro vehicle end cabinet cover plate with fireproof function |
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