CN214403726U

CN214403726U - Fire-proof device for smoke exhaust port of diesel engine of electric transmission diesel locomotive

Info

Publication number: CN214403726U
Application number: CN202022881070.6U
Authority: CN
Inventors: 田桂勇; 杨志杰; 司素克; 国大翔; 曹炎芹
Original assignee: Handan Iron and Steel Group Co Ltd; HBIS Co Ltd Handan Branch
Current assignee: Handan Iron and Steel Group Co Ltd; HBIS Co Ltd Handan Branch
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-10-15
Anticipated expiration: 2030-12-04

Abstract

A fire protection device for an exhaust port of a diesel engine of an electric drive diesel locomotive belongs to the technical field of electric drive diesel locomotive equipment and is used for preventing fire of the exhaust port of the diesel engine. The technical scheme is as follows: the PLASTIC LAMINATED constitutes the rectangle sheet frame for two L shape boards face, the long limit of two L shape boards face and the relative department of minor face overlap there is the PLASTIC LAMINATED rivet hole that corresponds, the PLASTIC LAMINATED rivet is as an organic whole with two PLASTIC LAMINATED connections, the gap top between diesel engine exhaust port and locomotive top cap is placed to the rectangle sheet frame that two PLASTIC LAMINATED constitute, the face width of two PLASTIC LAMINATED is greater than the gap between diesel engine exhaust port and the locomotive top cap respectively, the fire prevention blade is four isosceles trapezoid face, the trapezoidal minor face of four fire prevention blades is fixed on the rain eaves that hides of diesel engine exhaust port four sides through the fire prevention blade pivot respectively. The utility model discloses simple structure, dismouting are fast, can block the fire source and get into between the machine in, effectively avoid the conflagration hidden danger that the exhaust port caused, improve the reliability of locomotive operation.

Description

Fire-proof device for smoke exhaust port of diesel engine of electric transmission diesel locomotive

Technical Field

The utility model relates to a device that prevents fires is carried out to diesel engine exhaust port of electric drive diesel locomotive belongs to electric drive diesel locomotive equipment technical field.

Background

The electric driving diesel locomotive is one type of diesel locomotive and features that the internal combustion engine operates to drive the generator to operate, the electric energy produced by the generator is transmitted to the motor to convert the electric energy into mechanical energy, and the kinetic energy is transmitted to the driving wheel of the locomotive via speed varying gear and other transmission system to drive the train. The electric drive diesel locomotive is actually an electric locomotive with a generator, but the power source of the electric drive diesel locomotive is an internal combustion engine, so the electric drive diesel locomotive is not generally included in the category of electric locomotives.

At present, electric transmission diesel locomotives are mostly used for the back-off operation of railway freight transportation in domestic industrial and mining enterprises, the electric transmission diesel locomotives are generally diesel locomotives, and the fire prevention of the diesel locomotives is one of key work for ensuring the safety of equipment. Most of diesel engine smoke outlets of diesel internal combustion locomotives are arranged in the middle of the roofs, the smoke exhaust temperature of the diesel engine reaches 300-600 ℃, the idling time of the diesel locomotives used in general industrial and mining is long, a large amount of carbon deposits can be accumulated at the smoke outlets after long-term use, once the locomotives operate at high power, high-temperature fuel gas can ignite the carbon deposits to spray sparks, and the high-temperature fuel gas becomes a main ignition source of fire hazards of the locomotives.

Another reason why it becomes a main ignition source of fire hazard is that the ventilation and cooling of six traction motors of the electric drive diesel locomotive are accomplished by two blowers installed in the machine room, and a self-ventilation type main generator is also installed in the machine room, causing the machine room to be always in a negative pressure state. The diesel engine exhaust port is rigidly arranged above the diesel engine and swings with the diesel engine as a whole and directly protrudes out of a top cover of the machine room, and the diesel engine is connected with the vehicle body by adopting the elastic base, so the exhaust port needs to meet the requirements of swinging with different amplitudes of front, back, left, right, upper and lower, and the like relative to the top cover of the vehicle, so a gap of 4-6 cm must exist between the exhaust port and the top cover of the vehicle, and ignited carbon deposition sparks are sucked into the machine room to cause the fire hazard of the locomotive due to the existence of the gap and the negative pressure air suction effect in the machine room, a plurality of risks causing fire accidents are caused before refitting, and rock wool and glass fiber cloth winding measures are adopted afterwards, so the elasticity and the strength are not good enough, the maintenance cost is high (frequent replacement) and the sealing effect is poor. And the rock wool and the glass fiber cloth are easy to adhere carbon deposition, new ignition hidden danger is formed, and the fireproof effect is not thorough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a firebreak device of diesel engine exhaust port of electric drive diesel locomotive is provided, this kind of firebreak device can reduce the carbon deposit and adhere to, improves exhaust port and locomotive top cap dynamic seal nature, solves the difficult problem that inhales mars through the exhaust port and arouse conflagration hidden danger because of interior negative pressure causes between the electric drive locomotive machine.

The technical scheme for solving the technical problems is as follows:

a fire protection device for an exhaust port of a diesel engine of an electric drive diesel locomotive comprises two fire prevention plates, fire prevention plate rivets, fire prevention blades and a fire prevention blade rotating shaft, wherein the fire prevention plates are two L-shaped plate surfaces, long edges and short edges of the L-shaped plate surfaces of the two fire prevention plates are respectively parallel and are opposite to each other to form a rectangular plate frame, the long edges and the short edges of the L-shaped plate surfaces of the two fire prevention plates are opposite to each other to be overlapped, corresponding fire prevention plate rivet holes are formed in the overlapped parts, the fire prevention plate rivets penetrate through the fire prevention plate rivet holes to connect the two fire prevention plates into a whole, the rectangular plate frame formed by the two fire prevention plates is placed above a gap between the exhaust port of the diesel engine and a locomotive top cover, the plate widths of the two fire prevention plates are respectively larger than the gap between the exhaust port of the diesel engine and the locomotive top cover, the fire prevention blades are four isosceles trapezoid plate surfaces, the trapezoid short edges of the four fire prevention blades are respectively matched with the lengths of the four sides of the exhaust port of the diesel engine, the trapezoidal short edges of the four fireproof blades are fixed on rain-shielding eaves on the four sides of the diesel engine exhaust port through fireproof blade rotating shafts respectively, the trapezoidal long edges of the four fireproof blades are arranged below the outer side of the diesel engine exhaust port, and the trapezoidal inclined edges of the four fireproof blades are opposite to each other respectively.

Above-mentioned firebreak device of electricity transmission diesel locomotive diesel engine exhaust port, the interior angle of the L shape face of PLASTIC LAMINATED is convex, and the radian of interior angle matches with diesel engine exhaust port arc angle, and the PLASTIC LAMINATED rivet hole at two PLASTIC LAMINATED both ends is rectangular hole, and the PLASTIC LAMINATED rivet is sliding fit with the PLASTIC LAMINATED rivet hole.

Above-mentioned firebreak device of electricity transmission diesel locomotive diesel engine exhaust port, the junction of two PLASTIC LAMINATED has PLASTIC LAMINATED extension spring fixed orifices respectively, and the both ends of two PLASTIC LAMINATED extension springs are connected with the PLASTIC LAMINATED extension spring fixed orifices of two PLASTIC LAMINATED respectively, and the hole edge of the rectangle sheet frame that two PLASTIC LAMINATED constitute erects on trapezoidal diesel engine muffler upper portion.

Above-mentioned firebreak device of diesel engine exhaust port of electric drive diesel locomotive, there are fireproof blade extension spring fixed orifices respectively at the lower part both ends of the trapezoidal face of four fireproof blades, and the both ends of four fireproof blade extension springs are connected respectively in the fireproof blade extension spring fixed orifices at the lower part both ends of four fireproof blades, and the trapezoidal hypotenuse of four fireproof blades is closely relative respectively under the pulling force of fireproof blade extension spring, and the trapezoidal long limit of four fireproof blades pastes tight connection with the locomotive top cap respectively.

The utility model has the advantages that:

the fireproof plate of the utility model is combined by the fireproof plate rivet and the fireproof plate tension spring and is arranged at the gap between the smoke outlet of the diesel engine and the top cover of the locomotive, so that high-temperature gas or sparks can be prevented from being sucked into the machine room due to negative pressure airflow; the fireproof plate component is not fixed on the locomotive top cover or the diesel engine smoke outlet, and can adapt to the complex displacement change between the diesel engine smoke outlet and the locomotive top cover at any time under the action of the fireproof plate tension spring, so that the gap is always kept in the minimum state; the fireproof blade is always attached to the locomotive top cover tightly under the action of tension of the fireproof blade tension spring, and the sealing effect under the complex shaking state under various working conditions such as diesel engine starting, locomotive running and sudden braking is also achieved.

The utility model has the advantages of simple structure, low cost, preparation convenience, be difficult to the adhesion carbon deposit, dismouting speed is fast, not only can block the burning things which may cause a fire disaster and get into between the machine in, can also adapt to complicated motion change, keep the fire prevention effect, effectively avoid the conflagration hidden danger that the exhaust port caused, improve the reliability of locomotive operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic plan view of the fire retardant panel;

fig. 3 is a schematic plan view of a fire protection blade.

The figures are labeled as follows: the fireproof plate comprises a fireproof plate 1, a fireproof plate tension spring 2, a fireproof plate rivet 3, a fireproof plate tension spring fixing hole 4, a fireproof plate rivet hole 5, a fireproof blade 6, a fireproof blade rotating shaft 7, a fireproof blade tension spring 8, a fireproof blade tension spring fixing hole 9, a diesel engine smoke outlet 10, a smoke outlet rain shielding cover 11 and a locomotive top cover 12.

Detailed Description

The utility model discloses constitute by PLASTIC LAMINATED 1, PLASTIC LAMINATED extension spring 2, PLASTIC LAMINATED rivet 3, fire prevention blade 6, fire prevention blade pivot 7, fire prevention blade extension spring 8. The fireproof plate 1 is formed by combining a fireproof plate rivet 3 and a fireproof plate tension spring 2 together and is arranged at a gap between a diesel engine smoke outlet 10 and a locomotive top cover 12 to form a first defense line; the fireproof blades 6 are fixed on a rain shielding eave of a diesel engine exhaust port through fireproof blade rotating shafts 7, and adjacent two pieces of fireproof blades are tensioned and tightly attached to a top cover 12 of the locomotive through fireproof blade tension springs 8 to form a second defense line. The fire protection plate 1 and the fire protection flap 6 are thin steel plates with good elasticity.

Fig. 1 and 2 show that the fireproof plates 1 are two L-shaped plates, the long sides and the short sides of the L-shaped plates of the two fireproof plates 1 are respectively parallel and form rectangular plate frames in pairs, the rectangular plate frames formed by the two fireproof plates 1 are placed above the gap between the diesel exhaust port 10 and the locomotive top cover 12, and the width of the plate surfaces of the two fireproof plates 1 is respectively greater than the gap between the diesel exhaust port 10 and the locomotive top cover 12.

Fig. 1 and 2 show that the inner angle of the L-shaped surface of the fireproof plate 1 is arc-shaped, and the radian of the inner angle is matched with the arc angle of the diesel engine exhaust port 10. The long limit of the L shape face of two PLASTIC LAMINATED 1 overlaps with the relative department of minor face, and the department of overlapping has corresponding PLASTIC LAMINATED rivet hole 5, and the PLASTIC LAMINATED rivet 3 passes PLASTIC LAMINATED rivet hole 5 and connects two PLASTIC LAMINATED 1 as an organic whole.

Fig. 1 and 2 show that the fireproof plate rivet holes 5 at two ends of two fireproof plates 1 are long strip holes, and the fireproof plate rivets 3 are in sliding fit with the fireproof plate rivet holes 5. Adopt this kind of connection structure's effect to be in the same place two PLASTIC LAMINATED 1 can be made up and can the dislocation of each other for the rectangle sheet frame hole of PLASTIC LAMINATED 1 can change, can adapt to the complicated displacement change between exhaust port and the locomotive top cap, makes the gap remain minimum state throughout.

Fig. 1 and 2 show that the joints of two fireproof plates 1 are respectively provided with a fireproof plate tension spring fixing hole 4, the two ends of the two fireproof plate tension springs 2 are respectively connected with the fireproof plate tension spring fixing holes 4 of the two fireproof plates 1, and the edge of an inner hole of a rectangular plate frame consisting of the two fireproof plates 1 is erected on the upper part of an inverted trapezoidal diesel engine silencer. The sealing plate frame composed of the fireproof plate 1 is not fixed on the locomotive top cover 12 or the diesel engine smoke outlet 10, and can adapt to the complex displacement change between the diesel engine smoke outlet 10 and the locomotive top cover 12 at any time under the action of the fireproof plate tension spring 2, so that the gap is always kept in the minimum state.

FIG. 1, 3 shows, fire prevention blade 6 is four isosceles trapezoid faces, four fire prevention blade 6's trapezoidal minor face respectively with the length phase-match of diesel engine exhaust port 10 four sides, four fire prevention blade 6's trapezoidal minor face is fixed on the rain eaves that hides of diesel engine exhaust port 10 four sides through fire prevention blade pivot 7 respectively, fire prevention blade 6 can rotate around fire prevention blade pivot 7 is nimble, four fire prevention blade 6's trapezoidal long limit is in the outside below of diesel engine exhaust port 10, four fire prevention blade 6's face slope is placed, four fire prevention blade 6's trapezoidal hypotenuse is respectively relative.

Fig. 1 and 3 show that the lower ends of the trapezoidal plate surfaces of the four fireproof blades 6 are respectively provided with fireproof blade tension spring fixing holes 9, the two ends of the four fireproof blade tension springs 8 are respectively connected in the fireproof blade tension spring fixing holes 9 at the two ends of the lower part of the four fireproof blades 6, the trapezoidal inclined edges of the four fireproof blades 6 are respectively closely opposite under the tension of the fireproof blade tension springs 8, and the trapezoidal long edges of the four fireproof blades 6 are respectively attached to and tightly connected with a locomotive top cover 12. The fireproof blade is always attached to the locomotive top cover tightly under the action of tension of the fireproof blade tension spring to form a second sealing defense line, and the sealing effect under the complex shaking state under various working conditions such as diesel engine starting, locomotive running and sudden braking is also achieved.

The utility model discloses an embodiment as follows:

the length of the long side of the L-shaped plate surface of the fireproof plate 1 is 770mm, the width of the L-shaped plate surface is 70mm, the length of the short side of the L-shaped plate surface is 450mm, and the width of the L-shaped plate surface is 70 mm; the fire-proof plate 1 is made of a common steel plate with the thickness of 2 mm.

The length of the fireproof plate tension spring 2 is 150 mm;

the diameter of the fireproof plate tension spring fixing hole 4 is 3 mm;

the diameter of the fireproof plate rivet 3 is 6 mm;

the length of the rivet hole 5 of the fireproof plate is 30mm, and the width of the rivet hole is 6.5 mm;

the isosceles trapezoid board surface of the fireproof blade 6 has two sizes, the length of the short side of the big block is 810mm, the length of the long side is 950mm, and the height is 150 mm; the short side length of the small pieces is 540mm, the long side length is 780mm, and the height is 150 mm; the fireproof blades 6 are made of stainless steel plates with the thickness of 0.3 mm.

The diameter of the fireproof vane rotating shaft 7 is 6mm, and the length is 790mm and 520mm respectively;

the length of the fireproof blade tension spring 8 is 150 mm;

the diameter of the fireproof blade tension spring fixing hole 9 is 3 mm.

Claims

1. The utility model provides a fire protection device of diesel engine exhaust port of electric drive diesel locomotive which characterized in that: the fireproof plate comprises fireproof plates (1), fireproof plate rivets (3), fireproof blades (6) and fireproof blade rotating shafts (7), wherein the fireproof plates (1) are two L-shaped plate surfaces, long sides and short sides of the L-shaped plate surfaces of the two fireproof plates (1) are respectively parallel and are opposite in pairs to form a rectangular plate frame, the long sides and the short sides of the L-shaped plate surfaces of the two fireproof plates (1) are opposite to each other and are overlapped, corresponding fireproof plate rivet holes (5) are formed in the overlapped positions, the fireproof plate rivets (3) penetrate through the fireproof plate rivet holes (5) to connect the two fireproof plates (1) into a whole, the rectangular plate frame formed by the two fireproof plates (1) is placed above a gap between a diesel engine smoke exhaust port (10) and a locomotive top cover (12), the plate widths of the two fireproof plates (1) are respectively larger than the gap between the diesel engine smoke exhaust port 10 () and the locomotive top cover (12), the fireproof blades (6) are four isosceles trapezoid plate surfaces, the trapezoidal minor face of four fire prevention blades (6) matches with the length of diesel engine exhaust port (10) four sides respectively, and the trapezoidal minor face of four fire prevention blades (6) is fixed on the rain eaves that hides of diesel engine exhaust port (10) four sides through fire prevention blade pivot (7) respectively, and the trapezoidal long limit of four fire prevention blades (6) is in the outside below of diesel engine exhaust port (10), and the trapezoidal hypotenuse of four fire prevention blades (6) is relative respectively.

2. The fire protection device for the smoke exhaust port of the diesel engine of the electric drive internal combustion locomotive according to claim 1, wherein: the interior angle of the L-shaped surface of the fireproof plate (1) is arc-shaped, the radian of the interior angle is matched with the arc angle of the diesel engine exhaust port (10), the fireproof plate rivet holes (5) at the two ends of the two fireproof plates (1) are strip holes, and the fireproof plate rivets (3) are in sliding fit with the fireproof plate rivet holes (5).

3. The fire protection device for the smoke exhaust port of the diesel engine of the electric drive internal combustion locomotive according to claim 1, wherein: the junction of two PLASTIC LAMINATED (1) has PLASTIC LAMINATED extension spring fixed orifices (4) respectively, and the both ends of two PLASTIC LAMINATED extension springs (2) are connected with the PLASTIC LAMINATED extension spring fixed orifices (4) of two PLASTIC LAMINATED (1) respectively, and the hole edge of the rectangle sheet frame that two PLASTIC LAMINATED (1) are constituteed erects on trapezoidal diesel engine muffler upper portion.

4. The fire protection device for the smoke exhaust port of the diesel engine of the electric drive internal combustion locomotive according to claim 1, wherein: the lower part both ends of the trapezoidal face of four fire prevention blades (6) have fire prevention blade extension spring fixed orifices (9) respectively, and the both ends of four fire prevention blade extension springs (8) are connected respectively in the fire prevention blade extension spring fixed orifices (9) at the lower part both ends of four fire prevention blades (6), and the trapezoidal hypotenuse of four fire prevention blades (6) is closely relative respectively under the pulling force of fire prevention blade extension spring (8), and the trapezoidal long limit of four fire prevention blades (6) pastes tight connection with locomotive top cap (12) respectively.