CN113682329B

CN113682329B - Locomotive cab rear wall and locomotive

Info

Publication number: CN113682329B
Application number: CN202111171414.7A
Authority: CN
Inventors: 赵亚峰; 李刚; 赵志强
Original assignee: CRRC Datong Co Ltd
Current assignee: CRRC Datong Co Ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-11-29
Anticipated expiration: 2041-10-08
Also published as: CN113682329A

Abstract

The present disclosure provides a locomotive cab back wall and a locomotive, the locomotive cab back wall includes: the rear wall comprises a rear wall body and a rear wall door, wherein the rear wall body comprises a rear wall frame, and a first fireproof layer, a first damping slurry layer, a first heat-preservation and sound-insulation layer and a first heat-insulation layer which are arranged on the rear wall frame; a door opening is formed on the rear wall body; the back wall door is located on the door opening and with the back wall body rotates and is connected, the back wall door includes door frame, locates second flame retardant coating, second damping thick liquid layer, second heat preservation puigging and second heat insulation layer on the door frame. Besides meeting the requirements of heat preservation and sound insulation of the cab, the fireproof integrity and the heat insulation of the rear wall are improved, and drivers and passengers can timely escape under dangerous conditions.

Description

Locomotive cab rear wall and locomotive

Technical Field

The disclosure relates to the technical field of locomotives, in particular to a rear wall of a locomotive cab and a locomotive.

Background

The driver cab on the locomotive is a place where a driver works, and the driver cab has certain comfort and safety in order to ensure that the locomotive can normally run. Each cab of the existing locomotive is provided with a group of rear walls which are arranged between the locomotive cab and the machinery room.

Along with the development of rail transit, the requirement on personal safety is higher and higher, and the requirement on the fireproof structure of the cab is very necessary to be improved because the cab is a closed place for a driver to work.

It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

An object of the disclosed embodiment is to provide a locomotive cab rear wall and locomotive, outside satisfying cab heat preservation and sound insulation requirements, improved the fire-proof integrality and the heat-proof quality of rear wall, ensure that the driver and the crew can in time flee under the dangerous condition.

According to an aspect of an embodiment of the present disclosure, there is provided a locomotive cab back wall of a fire protection structure, including:

the rear wall body comprises a rear wall frame, and a first fireproof layer, a first damping slurry layer, a first heat-preservation sound-insulation layer and a first heat-insulation layer which are arranged on the rear wall frame; a door opening is formed on the rear wall body;

the back wall door is located on the door opening and with the back wall body rotates to be connected, the back wall door includes the door frame, locates second flame retardant coating, second damping thick liquid layer, second heat preservation puigging and second heat insulation layer on the door frame.

In an exemplary embodiment of the present disclosure, the first flame retardant layer and the second flame retardant layer are a flame retardant coating.

In an exemplary embodiment of the present disclosure, the rear wall body includes opposite first and second sides in a thickness direction of the rear wall body, the first flame retardant layer is provided on the first side of the rear wall body, and the first thermal insulation layer is provided on the second side of the rear wall body.

In an exemplary embodiment of the present disclosure, the rear wall frame is formed with an accommodating space, and at least one of the first damping paste layer and the first thermal insulation and soundproof material layer is provided in the accommodating space.

In an exemplary embodiment of the present disclosure, the first damping paste layer and the first heat-insulating and sound-insulating material layer are stacked in the thickness direction of the rear wall body in the accommodation space.

In an exemplary embodiment of the present disclosure, the rear wall door includes opposite first and second sides in a thickness direction of the rear wall door, the second fire prevention layer is provided at the first side of the rear wall body, and the second heat insulation layer is provided at the second side of the rear wall body.

In an exemplary embodiment of the present disclosure, the cab back wall further includes:

the first interior trim panel is arranged on the second side of the rear wall body in the thickness direction of the rear wall body, and comprises a first side and a second side which are opposite to each other;

the second interior trim panel is in the thickness direction of back wall door, back wall door includes opposite first side and second side, the second interior trim panel is located the second side of back wall door.

the expansion rubber strip is arranged on the door opening or the rear wall door, and when the rear wall door closes the door opening, the expansion rubber strip is used for sealing a gap between the edge part of the rear wall door and the door opening; the expansion rubber strip can expand after encountering fire.

In an exemplary embodiment of the present disclosure, the expansion rubber strip is in a ring shape and is disposed on an edge portion of a circumference of the door opening.

According to another aspect of the disclosed embodiments, there is provided a locomotive comprising the locomotive cab back wall described above.

The locomotive cab back wall provided by the disclosure can form an effective partition structure by scientifically designing material levels according to an actual structural space while meeting the heat preservation and sound insulation requirements of the cab; the structure not only meets the requirements of heat preservation and sound insulation of the cab, but also has high overall fireproof characteristic level, and is higher than the integrity and heat insulation of the existing rear wall structure under the same fire hazard condition, so that the fireproof integrity and heat insulation of the rear wall are improved. This back wall provides integrality and heat-proof quality in a certain time under the equipment condition of taking place the conflagration between machinery, effectively cuts off flame, heat and the inside stretching of cigarette poison to the cab between machinery, guarantees that the driver can be safe in time flee to safe region outside the car from cab entrance door or side window, ensures that the driver and passenger can in time flee under the dangerous condition.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. It should be apparent that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived by those of ordinary skill in the art without inventive effort. In the drawings:

FIG. 1 is an isometric view of a locomotive cab rear wall provided by an embodiment of the present disclosure;

FIG. 2 is a schematic material level diagram of a locomotive cab back wall provided by an embodiment of the present disclosure;

FIG. 3 is a front view of a rear wall of a locomotive cab provided by an embodiment of the present disclosure;

FIG. 4 isbase:Sub>A cross-sectional view taken along plane A-A of FIG. 3;

fig. 5 is a cross-sectional view taken along the plane B-B in fig. 3.

Description of reference numerals:

10. a rear wall body;

110. the thermal insulation and sound insulation structure comprises a rear wall frame, 120, a first damping slurry layer, 130, a first thermal insulation and sound insulation layer, 140, a first thermal insulation layer, 150, a first fireproof layer, 160, a first interior trim panel, 170 and an expansion rubber strip;

20. a rear wall door;

210. the door comprises a door frame, 220, a second damping paste layer, 230, a second heat-insulating and sound-insulating layer, 240, a second heat-insulating layer, 250, a second fireproof layer, 260 and a second interior trim panel.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other apparatus steps.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be understood that if the illustrated device is turned upside down, elements described as "upper" will be those that are "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a", "an", "the", and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting on the number of their objects.

The inventor finds that the performance of the fireproof structure of the rear wall of the locomotive cab is embodied in two aspects: integrity (E) and insulation (I). The cab rear wall on the locomotive in the prior art mainly comprises a cab rear wall body, a rear wall door metal frame, a polypropylene heat-insulating sound-insulating material and a glass fiber reinforced plastic interior trim panel, and structural fireproof performance is found to be weak and only E15/I12 is available through structural fireproof tests. The TSI (International interconnection and interworking) standard requires the requirement of a rear wall fireproof structure to be E15/I15, the highest requirement of the EN45545-3 standard is E30/I15, and the requirement of the GOST R55364-2012 standard is E30/I30. Along with the development of rail transit, the requirement on personal safety is higher and higher, and the requirement on the fireproof structure of the cab is very necessary to be improved because the cab is a closed place for a driver to work.

In view of the above technical problem, an embodiment of the present disclosure first provides a rear wall of a locomotive cab, as shown in fig. 1 to 5, the rear wall of the locomotive cab includes: the back wall comprises a back wall body 10 and a back wall door 20, wherein the back wall body 10 comprises a back wall frame 110, a first fireproof layer 150, a first damping slurry layer 120, a first heat-insulating and sound-insulating layer 130 and a first heat-insulating layer 140 which are arranged on the back wall frame 110; a door opening is formed on the rear wall body 10; the back wall door 20 is provided on the door opening and rotatably connected to the back wall body 10, and the back wall door 20 includes a door frame 210, a second fireproof layer 250, a second damping mortar layer 220, a second heat insulating and sound insulating layer 230 and a second heat insulating layer 240 provided on the door frame 210.

The locomotive cab rear wall provided by the disclosure has the advantages that besides the requirement of heat preservation and sound insulation of the cab is met, an effective partition structure is formed by scientifically designing material levels according to an actual structural space; the structure not only meets the requirements of heat preservation and sound insulation of the cab, but also has high overall fireproof characteristic level, is higher than the integrality and the heat insulation of the existing rear wall structure under the same fire hazard condition, and improves the fireproof integrality and the heat insulation of the rear wall. The rear wall provides integrity and heat insulation within a certain time under the condition that fire happens to equipment between machines, effectively prevents flame, heat and smoke toxicity between the machines from spreading towards the interior of a cab, ensures that a driver can safely and timely escape from an entrance door or a side window of the cab to a safe area outside the cab, and ensures that drivers and passengers can timely escape under the dangerous condition.

Specifically, as shown in fig. 2, the rear wall body 10 includes a first side and a second side opposite to each other in a thickness direction of the rear wall body 10, the first flame retardant layer 150 is provided on the first side of the rear wall body 10, and the first thermal insulation layer 140 is provided on the second side of the rear wall body 10.

Wherein, the rear wall frame 110 is formed with a receiving space, and at least one of the first damping mortar layer 120 and the first heat-insulating and sound-insulating material layer is disposed in the receiving space. Illustratively, the first damping mortar layer 120 and the first thermal insulation and sound insulation material layer are stacked in the thickness direction of the rear wall body 10 in the receiving space.

Wherein, the back wall frame 110 can form a C-shaped clamping structure to clamp the first damping slurry layer 120 and the first heat-insulating and sound-insulating material layer.

Wherein, cab back wall still includes: first interior trim panel 160. In the thickness direction of the rear wall body 10, the rear wall body 10 includes a first side and a second side opposite to each other, and the first interior trim panel 160 is disposed on the second side of the rear wall body 10.

Specifically, as shown in fig. 3 and 5, the rear wall door 20 includes opposite first and second sides in a thickness direction of the rear wall door 20, the second fire prevention layer 250 is provided on the first side of the rear wall body 10, and the second heat insulation layer 240 is provided on the second side of the rear wall body 10.

Wherein, cab back wall still includes: the second interior trim panel 260 is disposed on the second side of the rear wall door 20, and the rear wall door 20 includes a first side and a second side opposite to each other in the thickness direction of the rear wall door 20, and the second interior trim panel 260 is disposed on the second side of the rear wall door 20.

The first fireproof layer 150 and the second fireproof layer 250 can be fireproof paint and are formed by spraying; of course, a plate-like layer of fire-resistant material is also possible.

Specifically, as shown in fig. 5, the rear wall body 10 further includes: the glue strip 170 is expanded. The expansion rubber strip 170 is arranged on the door opening or the rear wall door 20, and when the rear wall door 20 closes the door opening, the expansion rubber strip 170 is used for sealing a gap between the edge part of the rear wall door 20 and the door opening; the expansion joint 170 expands when exposed to fire. The expansion rubber strip 170 is annular and is arranged on the edge of the periphery of the door opening, so that a better sealing effect is further realized.

As shown in fig. 2, the rear wall body 10 and the rear wall door 20 of the rear wall of the locomotive cab in the fireproof structure according to the embodiment of the present disclosure are mainly formed by six layers of fireproof paint, a frame, damping paste, a thermal insulation and sound insulation material, a thermal insulation material, and an interior trim panel, and an expansion adhesive tape 170 is disposed between the rear wall door 20 and the rear wall body 10. Wherein, the materials of each function in the rear wall body 10 and the rear wall door 20 may be the same or different.

The rear wall frame 110 of the rear wall body 10 and the door frame 210 of the rear wall door 20 are metal frames, and are mainly formed by welding structural steel.

The fireproof paint is sprayed on the outer surfaces (on the machine room side) of the skins of the metal frames of the back wall body 10 and the back wall door 20 to form a first fireproof layer 150 and a second fireproof layer 250. When the fire occurs, the fire-resistant door slowly expands and foams to form a compact and hard fire-resistant heat-insulating layer, so that the fire-resistant door has strong fire-resistant impact and delays the temperature rise speed of the rear wall body 10 and the rear wall door 20.

The damping paste of the first damping paste layer 120 and the second damping paste layer 220 is based on water-based synthetic resin, is coated on the inner surface (cab side) of the skin of the metal frame of the rear wall body 10 and the rear wall door 20, has a high attenuation coefficient, can absorb the noise of an external structure, has good fireproof performance, and is non-toxic and tasteless.

The heat and sound insulation materials of the first heat and sound insulation layer 130 and the second heat and sound insulation layer 230 are filled in the metal frame cavities of the rear wall body 10 and the rear wall door 20, mainly comprise inorganic artificial fiber cotton, and have the functions of heat insulation, heat preservation and noise reduction.

The heat insulating materials of the first and second

heat insulating layers

140 and 150 are laid on the outer surfaces (cab side) of the metal frame beams of the rear wall body 10 and the rear wall door 20 and the outer surfaces (cab side) of the heat insulating and sound insulating materials, and have a heat insulating function.

The first interior trim panel 160 and the second interior trim panel 260 are laid on the outer surface of the cab side of the heat insulating material, cover the rear wall body 10 and the rear wall door 20, are mainly made of polyester glass fiber reinforced plastics, and have plasticity and a heat insulating function.

As shown in fig. 2, in the rear wall of the cab in the fire-proof structure, the fire-proof coating directly contacts with the harsh environment such as the flame between machines and is the first barrier of the fire-proof structure; the combination of the damping slurry and the metal frame skin of the rear wall improves the fire resistance strength of the metal frame, and the damping slurry forms a vibration-damping and heat-insulating wall; the heat-insulating material is filled in the cavity structure of the metal frame of the rear wall, and has the functions of sound absorption, noise reduction, heat insulation and heat insulation; the heat insulation material is flatly laid on the metal frame beam and the heat insulation filler to form a heat insulation barrier again, so that a safer space is created inside the cab; the interior trim panel is the outer surface of the rear wall of the cab with the fireproof structure, the fireproof performance of the interior trim panel meets the corresponding flame retardant grade, and the interior trim panel is the last fireproof barrier and forms a complete and reliable rear wall of the cab with the fireproof structure together with other barriers.

As shown in fig. 3, it can be clearly seen that the overall structural relationship of the rear wall of the cab in the fire-proof structure of the present disclosure is mainly composed of a rear wall body 10 and a rear wall door 20, and the rear wall of the cab in the fire-proof structure divides the cab and the machinery space into two spaces, and in a dangerous situation, the two protective barriers are relatively independent and stable and reliably guaranteed.

As shown in fig. 4, the rear wall of the locomotive cab provided by the present disclosure has a complete fireproof structure and stable overall performance, and the rear wall frame 110 is a main structure of the rear wall of the locomotive cab with the fireproof structure.

As shown in fig. 5, an expansion rubber strip 170 is disposed between the rear wall door 20 and the rear wall body 10, and in case of fire, the expansion rubber strip 170 expands to fill the gap between the rear wall door 20 and the rear wall body 10, so as to ensure the gap is completely sealed, and to isolate the propagation of flame and smoke poison to the cab.

The rear wall of the locomotive cab with the fireproof structure mainly comprises fireproof coating, a rear wall body, a rear wall door metal frame, damping slurry, a soluble fiber heat-insulating and sound-insulating material, a heat-insulating material and a glass fiber reinforced plastic interior trim panel, wherein a rubber strip which expands when encountering fire is arranged between the rear wall door and the rear wall body; the structure highlights the overall fireproof characteristic besides meeting the heat preservation and sound insulation requirements of the cab, and the structure fireproof performance can meet E30/I30 through the structure fireproof test. The whole fireproof structure of the rear wall of the cab with the fireproof structure is arranged between the cab and machinery, and materials of all layers interact to form the whole fireproof structure, and the characteristic is the remarkable characteristic of the structure. When emergencies such as fire disasters occur between machines, the rear wall of the cab with the fireproof structure can effectively prevent flame and smoke toxicity between machines from spreading to the inside of the cab, the fireproof integrity and the heat insulation of the rear wall are improved, and drivers and passengers can be ensured to escape in time under dangerous conditions.

Embodiments of the present disclosure also provide a locomotive including the locomotive cab back wall described above. The beneficial effects of the locomotive refer to the related discussion about the rear wall embodiment of the locomotive cab, and are not described in detail herein. The locomotive may be, for example, an electric railroad locomotive or a thermal railroad locomotive.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides a wall behind locomotive cab which characterized in that includes:

the rear wall body comprises a rear wall frame, and a first fireproof layer, a first damping slurry layer, a first heat-insulating and sound-insulating layer and a first heat-insulating layer which are arranged on the rear wall frame; a door opening is formed on the rear wall body; the rear wall body comprises a first side and a second side which are opposite to each other in the thickness direction of the rear wall body, the first fire-proof layer is arranged on the first side of the rear wall body, and the first heat-insulating layer is arranged on the second side of the rear wall body; the rear wall frame is provided with an accommodating space, and the first damping slurry layer and the first heat-insulating and sound-insulating material layer are stacked in the accommodating space in the thickness direction of the rear wall body;

the rear wall door is arranged on the door opening and is rotationally connected with the rear wall body, and the rear wall door comprises a door frame, and a second fireproof layer, a second damping mortar layer, a second heat preservation and sound insulation layer and a second heat insulation layer which are arranged on the door frame; in the thickness direction of the rear wall door, the rear wall door comprises a first side and a second side which are opposite, the second fireproof layer is arranged on the first side of the rear wall door, and the second heat insulation layer is arranged on the second side of the rear wall door;

the expansion rubber strip is annular and is arranged on the edge part of the periphery of the door opening, and when the rear wall door closes the door opening, the expansion rubber strip is used for sealing a gap between the edge part of the rear wall door and the door opening; the expansion rubber strip can expand after encountering fire.

2. The locomotive cab back wall according to claim 1, wherein the first and second fire resistant layers are a fire resistant coating.

3. The locomotive cab back wall of claim 1, further comprising:

the first interior trim panel is arranged on the second side of the rear wall body in the thickness direction of the rear wall body and comprises a first side and a second side which are opposite to each other;

4. A locomotive comprising a locomotive cab back wall according to any of claims 1-3.