CN217302049U

CN217302049U - Flexible connection for high-temperature-resistant high-pressure gas furnace

Info

Publication number: CN217302049U
Application number: CN202220144248.5U
Authority: CN
Inventors: 高文岐; 何胜通; 杜喜林
Original assignee: Qingdao Xinkaishi Sealing Industry Co ltd; Gaoke Rubber & Plastic Industrial Co ltd
Current assignee: Qingdao Xinkaishi Sealing Industry Co ltd; Gaoke Rubber & Plastic Industrial Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-08-26
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a high temperature resistant high pressure type flexible coupling for gas furnace, concretely relates to sealed tube technical field. The flexible connection for the high-temperature and high-pressure resistant gas furnace comprises a main body pipe and a flange plate, wherein a silica gel corrugated sheath is arranged on the inner layer of the main body pipe, an aramid fiber protective sleeve is arranged on the outer layer of the main body pipe, and the silica gel corrugated sheath and the aramid fiber protective sleeve are tightly attached into a whole. The main part pipe body be the wave, the main part pipe both ends mouth of pipe is the turn-ups structure, the body endotheca of main part pipe is equipped with first steel ring, first steel ring chucking is in the trough department of silica gel ripple sheath. The body overcoat of main part pipe is equipped with the second steel ring, and the second steel ring chucking is in the trough department of aramid fiber lag. Two ends of the main pipe are respectively sleeved with a flange. The utility model discloses the leakproofness is good, high temperature and high pressure resistant, and is difficult damaged, and the installation is dismantled conveniently, has solved current connected mode fragile, and life is short, dismantles frequently to lead to the higher problem of cost.

Description

Flexible connection for high-temperature-resistant high-pressure gas furnace

Technical Field

The utility model discloses a high temperature resistant high pressure type is flexible coupling for gas furnace, concretely relates to sealed tube technical field.

Background

Dry quenching refers to a quenching method for cooling red coke by inert gas, compared with wet quenching. In the process of dry quenching, 1000 ℃ red coke is loaded from the top of a dry quenching furnace, 130 ℃ low-temperature inert circulating gas is blown into a red coke layer of a cooling section of the dry quenching furnace by a circulating fan to absorb the sensible heat of the red coke, the cooled coke (lower than 200 ℃) is discharged from the bottom of the dry quenching furnace, high-temperature inert gas flowing out of an annular flue of the dry quenching furnace flows through the dry quenching furnace to exchange heat, the boiler generates steam, the cooled inert gas is blown into the dry quenching furnace again by the circulating fan, and the inert gas is recycled in a closed system. In the hose connection pipe that uses in this operational environment, because the machine is mostly long-term continuity work, and the external environment is comparatively abominable, have more dust, iron fillings etc. if, and hose connection pipe inside often has high temperature high-pressure gas to pass through, ordinary flexible coupling can't satisfy such harsh condition, and current connecting pipe is the pure main part of gluing, fragile or deformation inefficacy in adverse circumstances, and because the installation is dismantled manyly, the dismantlement cost is high, consequently, the urgent need for a novel flexible coupling to solve above-mentioned problem.

Among the prior patent with the utility model discloses the closest technique does: the utility model provides a hose connection pipe (CN211525737U) of exhaust-gas treatment pipeline, hose connection pipe is through having set up the butt joint frame in this patent, the inner wall fixedly connected with sealing washer of butt joint frame, can make butt joint plate and pipeline butt joint back, the butt joint frame just covers on the marginal gap of butt joint plate and pipeline flange junction, the gap department can be sealed to the sealing washer simultaneously, when connecting bolt is not hard up, the gap department of its connection can also be sealed by the sealing washer, prevented that the leakage from taking place, reach the purpose that improves sealed effect. The flexible connection with elasticity is also used at the joint, but the sealing performance needs to be improved due to the small butt joint area at the joint.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the flexible connection for the high-temperature-resistant high-pressure gas furnace has long service life and good sealing effect, and is convenient to mount and dismount.

The technical scheme of the utility model is that:

the utility model provides a high temperature resistant high pressure type is flexible coupling for gas furnace, includes main part pipe and flange dish, its characterized in that: the inner layer of the main body pipe is a silica gel corrugated sheath, the outer layer of the main body pipe is an aramid fiber protective sheath, the body of the main body pipe is wavy, pipe orifices at two ends of the main body pipe are of flanging structures, a first steel ring is sleeved in the body of the main body pipe, and a second steel ring is sleeved outside the body of the main body pipe; and two ends of the main pipe are respectively sleeved with a flange plate.

Furthermore, the silica gel ripple sheath and the aramid fiber protective sleeve are tightly attached into a whole.

Furthermore, a plurality of first steel rings are sleeved in the main pipe body, and all the first steel rings are sequentially clamped at the wave troughs of the silica gel corrugated sheath.

Furthermore, the number of the first steel rings is the same as that of the wave troughs in the main pipe body.

Furthermore, a plurality of second steel rings are sleeved outside the main body pipe body, and all the second steel rings are sequentially clamped at the wave troughs of the aramid fiber protection sleeve.

Furthermore, the number of the second steel rings is the same as the number of the wave troughs outside the pipe body of the main body.

Furthermore, the flange is a special-shaped flange, and the inner cavity of the flange is tightly attached to the peripheries of the pipe orifices at the two ends of the main pipe and the flanges.

Furthermore, 6 mounting holes are formed in the flange plate and the flanging position of the main body pipe.

The beneficial effects of the utility model reside in that:

1. the silica gel corrugated sheath of the main body pipe is formed by vulcanizing high-temperature-resistant silicon rubber, and has the advantages of high temperature and high pressure resistance;

2. the aramid fiber protective sleeve is made of aramid fiber cloth and has scalability and certain ductility;

3. the two special-shaped metal flange plates at the two ends are used for fixing the silica gel corrugated sheath and the aramid fiber protective sleeve, so that the sealing property and the stability of the device are improved;

4. the steel ring arranged inside and outside the main body pipe can support the inner and outer silica gel corrugated sheaths and the aramid fiber protective sleeve to be not deformed;

5. the flange plate and the mounting hole at the flanging position of the main body pipe are convenient to mount, dismount and replace, and the contact area of the flange plate and the flanging position of the main body pipe with the equipment butt joint position is increased.

The utility model discloses increased sealing flange's area of contact, made its play sealed effect that can be better, more ordinary flexible coupling uses ordinary rubber's state simultaneously, and this kind of flexible coupling uses high temperature resistant silicon rubber as sealed main part can be better play sealed effect, can withstand the high-pressure environment of long-term high temperature simultaneously, guarantees equipment continuous operation. And the design of a plurality of ripples can effectively solve the product problem of splits that equipment frequent vibration leads to. The steel ring in each middle ripple plays a role in supporting and protecting to prevent the flexible connection from deforming under a high-pressure state to cause failure.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the installation state of the present invention.

In the figure: 1. a main body tube; 1-1, a silica gel corrugated sheath; 1-2 parts of aramid fiber protective sleeve; 2. a flange plate; 3. a first steel ring; 4. a second steel ring; 5. an equipment connector; 6. and (7) installing holes.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in attached figures 1-3, the flexible connection for the high temperature and high pressure resistant gas furnace comprises a main body pipe 1 and a flange plate 2, wherein the inner layer of the main body pipe 1 is a silica gel corrugated sheath 1-1, the outer layer is an aramid fiber protective sheath 1-2, the silica gel corrugated sheath 1-1 and the aramid fiber protective sheath 1-2 are tightly attached into a whole, and the silica gel corrugated sheath 1-1 of the main body pipe 1 is formed by vulcanizing high temperature resistant silicon rubber and has the advantage of high temperature and high pressure resistance; the aramid fiber protective sleeve 1-2 is made of aramid fiber cloth and has scalability and certain ductility.

The body of the main body pipe 1 is wavy, pipe orifices at two ends of the main body pipe 1 are of a flanging structure, a plurality of first steel rings 3 are sleeved in the body of the main body pipe 1, and the first steel rings 3 are sequentially clamped at wave troughs of the silica gel corrugated sheath 1-1. The number of the first steel rings 3 is the same as that of the wave troughs in the main body pipe 1. A plurality of second steel rings 4 are sleeved outside the main body pipe 1, and the second steel rings 4 are sequentially clamped at wave troughs of the aramid fiber protection sleeve 1-2. The number of the second steel rings 4 is the same as the number of the wave troughs outside the main body pipe 1. The steel ring can support the inner and outer silica gel corrugated sheaths 1-1 and the aramid fiber protective sleeve 1-2 to be not deformed.

The two ends of the main pipe 1 are respectively sleeved with a flange 2, the flange 2 is a special-

shaped flange

2, and 6 mounting holes 6 are formed in the flange 2 and the flanging position of the main pipe 1, so that the installation, the disassembly and the replacement are convenient. The inner cavity of the flange 2 is tightly attached to the peripheries of the pipe orifices at the two ends of the main pipe 1 and the flanges. The two special-shaped metal flange plates 2 at the two ends are used for fixing the silica gel corrugated sheath 1-1 and the aramid fiber protective sheath 1-2, the flange plates 2 and the turned edges of the main body pipe 1 increase the area of the butt joint of the main body pipe 1 and equipment, the main body pipe 1 can be firmly locked on the equipment, and the connection tightness and the connection stability of the main body pipe 1 and the equipment are improved.

The utility model discloses in concrete use:

when the soft connection is used by a dry coke quenching vibration feeder, the soft connection can not meet the harsh conditions due to the fact that the soft connection is continuously operated for a long time (24 h/day and 335 days/year), more dust and scrap iron exist outside the soft connection, 250 ℃ gas and 0.5MPa pressure exist inside the soft connection, and the soft connection is complex in product disassembly and extremely high in disassembly cost.

When the utility model is adopted, the length of the main body pipe 1 is determined according to the installation condition of the equipment connecting body 5, the number of the wave troughs of the inner silica gel corrugated sheath 1-1 of the main body pipe 1 is set to be 8, and then the first steel ring 3 adopts 8 steel rings with the steel wire section diameter of 2.5mm and respectively presses the wave troughs of the corresponding silica gel corrugated sheath 1-1; the trough quantity of the external aramid fiber protection sleeve 1-2 of the main body pipe 1 is 7, and then the second steel ring 4 adopts 7 steel rings with the steel wire section diameter of 1.6mm and is pressed into the troughs of the corresponding aramid fiber protection sleeves 1-2 respectively. The flange 2 is pressed at the flanging position of the port of the main pipe 1, and the outer edge of the flange 2 is flush with the outer edge of the main pipe 1. The two end faces of the main body pipe 1 are respectively butted with the equipment connector 5, a silica gel sealing pad is arranged at the butt joint, and then the main body pipe 1 is locked and fixed on the equipment connector 5 through screws at the mounting hole 6 of the flange plate 2.

The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.

At present, the technical scheme of the application has been subjected to a pilot plant test, namely a small-scale experiment before large-scale mass production of products; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of products for formal production for industrialization (including intellectual property risk early warning research) has been set forth.

Claims

1. The utility model provides a high temperature resistant high pressure type is flexible coupling for gas furnace, includes main part pipe (1) and flange dish (2), its characterized in that: the inner layer of the main body pipe (1) is a silica gel corrugated sheath (1-1), the outer layer of the main body pipe is an aramid fiber protective sheath (1-2), the pipe body of the main body pipe (1) is wavy, pipe orifices at two ends of the main body pipe (1) are of flanging structures, a first steel ring (3) is sleeved in the pipe body of the main body pipe (1), and a second steel ring (4) is sleeved outside the pipe body of the main body pipe (1); two ends of the main pipe (1) are respectively sleeved with a flange (2).

2. The flexible connection for the high temperature and high pressure resistant gas furnace as claimed in claim 1, wherein: the silica gel corrugated sheath (1-1) and the aramid fiber protective sleeve (1-2) are tightly attached into a whole.

3. The flexible connection for the high temperature and high pressure resistant gas furnace as claimed in claim 1, wherein: a plurality of first steel rings (3) are sleeved in the body of the main body pipe (1), and all the first steel rings (3) are sequentially clamped at the wave troughs of the silica gel corrugated sheath (1-1).

4. The flexible connection for the high-temperature and high-pressure resistant gas furnace as claimed in claim 3, wherein: the number of the first steel rings (3) is the same as that of the wave troughs in the tube body of the main tube (1).

5. The flexible connection for the high temperature and high pressure resistant gas furnace as claimed in claim 1, wherein: the main part pipe (1) body overcoat be equipped with a plurality of second steel rings (4), all second steel rings (4) chucking in proper order are in the trough department of aramid fiber lag (1-2).

6. The flexible connection for high temperature and high pressure resistant gas furnace as claimed in claim 5, wherein: the number of the second steel rings (4) is the same as that of the wave troughs outside the tube body of the main tube (1).

7. The flexible connection for the high temperature and high pressure resistant gas furnace as claimed in claim 1, wherein: the flange plate (2) is a special-shaped flange plate (2), and the peripheries of the pipe orifices at the two ends and the flanges of the inner cavity of the flange plate (2) and the main body pipe (1) are tightly attached.

8. The flexible connection for the high-temperature and high-pressure resistant gas furnace as claimed in claim 5, wherein: the flange (2) and the flanging of the main pipe (1) are provided with 6 mounting holes (6).