CN217206631U

CN217206631U - Novel multi-section exhaust pipe connecting and sealing structure

Info

Publication number: CN217206631U
Application number: CN202220509492.7U
Authority: CN
Inventors: 田战胜; 向本杰; 兰棠洁; 冉景旭
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-08-16
Anticipated expiration: 2032-03-09

Abstract

The utility model discloses a novel multi-section exhaust pipe connection sealing structure, which comprises an exhaust pipe, wherein the exhaust pipe comprises a first exhaust pipe and a second exhaust pipe detachably butted with the first exhaust pipe; the sealing mechanism comprises a sealing connecting sleeve arranged at the butt joint end of the first exhaust pipe and a sealing connector arranged at the fixed end of the second exhaust pipe, and the inner diameter of the sealing connecting sleeve is equal to the outer diameter of the sealing connector; a sealing cord comprising a first sealing cord and a second sealing cord. The utility model discloses the kink at the sealed rope both ends of second can transversely imbed the T-slot, and with the effective contact in T-slot, changed the relative direction of the relative high temperature waste gas stream of port of the sealed rope of second on the one hand, changed the following current direction into by the vertical direction, on the other hand reduces or even eliminates the clearance of the sealed rope both ends mouth of second, and it is sealed to have strengthened the interface site, can effectively reduce waste gas leakage volume, reduces the blow erosion to the sealed rope port of second.

Description

Novel multi-section exhaust pipe connecting and sealing structure

Technical Field

The utility model relates to a seal structure is connected to blast pipe, especially about a novel multistage formula blast pipe connection seal structure.

Background

The existing gas engine, fuel engine, methanol engine or hydrogen engine, etc. all have air intake pipe and exhaust pipe, the air in the air intake pipe enters the combustion chamber to burn, the gas produced after burning is discharged through the exhaust pipe, its exhaust pipe is generally a multi-stage structure, need seal at the joint of two-stage exhaust pipe, the current sealing mode is generally a seal ring or seal, or the mode of seal rope + seal ring;

the novel multi-section exhaust pipe connecting and sealing structure is a sealing structure specially used for butting multi-section exhaust pipes, and can ensure the butting sealing property of the multi-section exhaust pipes;

the sealing ring is generally high in cost, and the problem of clamping stagnation of the sealing ring after high-temperature expansion is easily caused, so that air leakage (high-temperature waste gas) is caused; the sealing rope is generally low in cost, but the sealing rope in the current structure is easy to have the problem that the connecting parts at the two ends of the sealing rope are easy to blow away by high-temperature waste gas, so that the sealing rope gradually blows away and loses the sealing effect.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel seal structure is connected to multistage formula blast pipe, its sealed effect that can strengthen first blast pipe and second blast pipe butt joint has changed the relative direction of the port high temperature relative waste gas stream of the sealed rope of second, changes the following current direction by the vertical direction into, reduces or even eliminates the clearance of the sealed rope both ends mouth of second, has strengthened the interface position and has sealed, can effectively reduce the waste gas leakage volume, reduces the blow-off to the sealed rope port of second.

In order to achieve the above object, the utility model provides a novel multi-section type blast pipe connection seal structure, a serial communication port, include:

the exhaust pipe comprises a first exhaust pipe and a second exhaust pipe detachably butted with the first exhaust pipe;

the sealing mechanism comprises a sealing connecting sleeve arranged at the butt joint end of the first exhaust pipe and a sealing connector arranged at the fixed end of the second exhaust pipe, and the inner diameter of the sealing connecting sleeve is equal to the outer diameter of the sealing connector;

the sealing rope, the sealing rope includes first sealing rope and the sealed rope of second, first sealing rope and the sealed rope circle of second form the ring, and the nestification is at the surface of sealing joint head, first sealing rope and the sealed rope of second parallel.

The sealing connecting sleeve at the end position of the first exhaust pipe can be nested on the outer surface of the sealing connector at the end position of the second exhaust pipe, and meanwhile, the first sealing rope and the second sealing rope are clamped on the sealing connecting sleeve and the sealing connector, so that the butt joint of the first exhaust pipe and the second exhaust pipe is sealed.

In one or more embodiments, a first sealing groove matched with the first sealing rope is formed in the position, close to the first sealing rope, of the outer surface of the sealing connector, and is used for limiting the position of the first sealing rope.

The first sealing rope can be looped into a ring shape and embedded into the first sealing groove, and after the sealing connecting sleeve is in butt joint with the sealing connector, the first sealing groove acts between the sealing connecting sleeve and the sealing connector, so that the butt joint sealing effect of the sealing connecting sleeve and the sealing connector is improved.

In one or more embodiments, a second sealing groove matched with the second sealing rope is formed in the position, close to the second sealing rope, of the outer surface of the sealing connector.

In one or more embodiments, a T-shaped groove is formed in a sidewall of the second seal groove, and the T-shaped groove extends in an axial direction of the second exhaust pipe.

In one or more embodiments, two ends of the second sealing rope are provided with bent parts, and the bent parts are embedded into the T-shaped grooves.

In one or more embodiments, the width of the T-shaped slot is equal to twice the diameter of the second sealing cord.

The kink at second sealed rope both ends can transversely imbed the T-slot, and with T-slot effective contact, changed the relative direction of the relative high temperature waste gas stream of port of second sealed rope on the one hand, changed the following current direction into by the vertical direction, on the other hand reduces or even eliminates the clearance of second sealed rope both ends mouth, has strengthened the interface position and has sealed, can effectively reduce waste gas leakage volume, reduces the blow erosion to the sealed rope port of second.

In one or more embodiments, the depth of the cavity of the sealing connection sleeve is greater than the length of the sealing connection head.

The sealing connecting sleeve can completely cover the sealing connector, so that the first exhaust pipe and the second exhaust pipe are matched with the sealing connector more tightly through the sealing connecting sleeve, and the butt joint sealing effect of the first exhaust pipe and the second exhaust pipe is improved.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, the sealing connecting sleeve at the end of the first exhaust pipe can be nested on the outer surface of the sealing connector at the end of the second exhaust pipe, and meanwhile, the first sealing rope and the second sealing rope are clamped on the sealing connecting sleeve and the sealing connector, so that the butt joint sealing of the first exhaust pipe and the second exhaust pipe is realized;

secondly, the bent parts at the two ends of the second sealing rope can be transversely embedded into the T-shaped groove and are in effective contact with the T-shaped groove, so that on one hand, the relative direction of the port of the second sealing rope relative to the high-temperature exhaust gas flow is changed from the vertical direction to the downstream direction, on the other hand, the gap between the two ports of the second sealing rope is reduced or even eliminated, the sealing of the interface part is enhanced, the waste gas leakage amount can be effectively reduced, and the blow-corrosion to the port of the second sealing rope is reduced;

thirdly, guarantee that sealed adapter sleeve can wrap up sealed connector completely, make first blast pipe, second blast pipe through the cooperation of sealed adapter sleeve and sealed connector inseparabler, improved the sealed effect of first blast pipe, second blast pipe butt joint.

Drawings

Fig. 1 is a front view of an embodiment according to the present invention.

Fig. 2 is a front view of a second exhaust pipe according to an embodiment of the present invention.

Description of the main reference numerals:

1-a first exhaust pipe, 2-a second exhaust pipe, 3-a sealing connecting sleeve, 4-a sealing connector, 5-a first sealing groove, 6-a second sealing groove, 7-a T-shaped groove, 8-a first sealing rope and 9-a second sealing rope.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Example 1:

as shown in fig. 1, a novel multi-section exhaust pipe connection sealing structure includes:

the exhaust pipe comprises a first exhaust pipe 1 and a second exhaust pipe 2 detachably butted with the first exhaust pipe 1;

the sealing mechanism comprises a sealing connecting sleeve 3 arranged at the butt joint end of the first exhaust pipe 1 and a sealing connector 4 arranged at the fixed end of the second exhaust pipe 2, and the inner diameter of the sealing connecting sleeve 3 is equal to the outer diameter of the sealing connector 4;

the sealing rope, sealing rope include first sealing rope 8 and second sealing rope 9, and first sealing rope 8 and the 9 rings of second sealing rope encircle the annular, and the nestification is at the surface of sealing joint head 4, and first sealing rope 8 and second sealing rope 9 parallel.

The sealing connecting sleeve 3 at the end position of the first exhaust pipe 1 can be nested on the outer surface of the sealing connector 4 at the end position of the second exhaust pipe 2, and meanwhile, the first sealing rope 8 and the second sealing rope 9 are clamped on the sealing connecting sleeve 3 and the sealing connector 4, so that the butt joint of the first exhaust pipe 1 and the second exhaust pipe 2 is sealed.

The position that the surface of sealing connector 4 is close to first sealed rope 8 offers the first seal groove 5 that agrees with mutually with first sealed rope 8 for the position of the first sealed rope 8 of restriction.

First sealed rope 8 can enclose into the ring shape, imbeds first seal groove 5, and after sealed adapter sleeve 3 and sealing joint head 4 butt joint, first seal groove 5 is used in between sealed adapter sleeve 3 and the sealing joint head 4, has improved the sealed effect of sealed adapter sleeve 3 and the butt joint of sealing joint head 4.

Example 2:

as shown in fig. 2, a second sealing groove 6 engaged with the second sealing rope 9 is formed on the outer surface of the sealing connector 4 near the second sealing rope 9.

T-slot 7 has been seted up to the lateral wall of second seal groove 6, and T-slot 7 is equipped with the kink to the axial extension of second blast pipe 2, and the both ends of second sealed rope 9, kink embedding T-slot 7, the twice that equals the diameter of second sealed rope 9 of the width in T-slot 7.

The kink at second sealed rope 9 both ends can transversely imbed T-slot 7, and with T-slot 7 effective contact, has changed the relative direction of the relative high temperature waste gas stream of port of second sealed rope 9 on the one hand, changes the following current direction into by the vertical direction, and on the other hand reduces or even eliminates the clearance of second sealed rope 9 both ends mouth, has strengthened the interface portion and has sealed, can effectively reduce waste gas leakage volume, reduces the blow erosion to second sealed rope 9 port.

The depth of the inner cavity of the sealing connecting sleeve 3 is larger than the length of the sealing connector 4.

Guarantee that sealed adapter sleeve 3 can wrap up sealing connector 4 completely, make first blast pipe 1, second blast pipe 2 inseparabler through the cooperation of sealed adapter sleeve 3 with sealing connector 4, improved the sealed effect of first blast pipe 1, the butt joint of second blast pipe 2.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The utility model provides a novel seal structure is connected to multistage formula blast pipe which characterized in that includes:

the exhaust pipe comprises a first exhaust pipe (1) and a second exhaust pipe (2) detachably butted with the first exhaust pipe (1);

the sealing mechanism comprises a sealing connecting sleeve (3) arranged at the butt joint end of the first exhaust pipe (1) and a sealing connector (4) arranged at the fixed end of the second exhaust pipe (2), and the inner diameter of the sealing connecting sleeve (3) is equal to the outer diameter of the sealing connector (4);

the sealing rope, the sealing rope includes first sealing rope (8) and second sealing rope (9), first sealing rope (8) and second sealing rope (9) circle and encircle the circularity, and the nestification is at the surface of sealing joint head (4), first sealing rope (8) and second sealing rope (9) parallel.

2. The multi-section exhaust pipe connection sealing structure of claim 1, wherein a first sealing groove (5) engaged with the first sealing rope (8) is formed at a position of the outer surface of the sealing connector (4) close to the first sealing rope (8) for limiting the position of the first sealing rope (8).

3. The novel multi-section exhaust pipe connection sealing structure of claim 1, wherein a second sealing groove (6) matched with the second sealing rope (9) is formed in the position, close to the second sealing rope (9), of the outer surface of the sealing connector (4).

4. A novel multi-section exhaust pipe connection sealing structure according to claim 3, wherein a T-shaped groove (7) is formed in a side wall of the second sealing groove (6), and the T-shaped groove (7) extends in an axial direction of the second exhaust pipe (2).

5. A novel multi-section exhaust pipe connection sealing structure according to claim 4, wherein two ends of the second sealing rope (9) are provided with bent portions, and the bent portions are embedded in the T-shaped grooves (7).

6. A novel multi-section exhaust pipe connection sealing structure according to claim 4, characterized in that the width of the T-shaped groove (7) is equal to twice the diameter of the second sealing rope (9).

7. A novel multi-section exhaust pipe connection sealing structure according to claim 1, wherein the depth of the inner cavity of the sealing connection sleeve (3) is greater than the length of the sealing connection head (4).