CN219775036U - Carbon black flue gas pipeline jacket device - Google Patents

Abstract

The utility model discloses a carbon black flue gas pipeline jacket device which comprises an upper supporting ring, a lower supporting ring and a jacket sleeve, wherein the upper supporting ring and the lower supporting ring are arranged in a flue gas pipeline, the jacket sleeve is clamped between the upper supporting ring and the lower supporting ring, and a through hole is formed in the jacket sleeve. The jacket pipe in the flue gas pipeline is contacted with water, so that the rapid cooling and rapid heating of the flue gas pipeline are avoided, the flue gas pipeline is protected, the service life of the flue gas pipeline is prolonged, and accidental breakage of the flue gas pipeline is avoided.

Description

Carbon black flue gas pipeline jacket device

Technical Field

The utility model belongs to the technical field of pipeline protection, and particularly relates to a carbon black flue gas pipeline jacket device.

Background

In the carbon black production system, the temperature of the generated flue gas is very high, and a part of flue gas is introduced into a high-temperature air preheater, and the air is preheated by utilizing the preheating of the flue gas.

After the waste heat is utilized, the internal temperature of a flue gas pipeline at the outlet of the high-temperature air preheater is still very high, and for discharge aftertreatment, 1-2 water spraying devices are usually arranged on the flue gas pipeline at the position, and the water spraying direction is mutually perpendicular to the flue gas flowing direction so as to spray water and cool the flue gas. When the flue gas flows through fast, the sprayed water is instantaneously vaporized when contacting with the high-temperature flue gas, but a part of the sprayed water can be sprayed on the flue gas pipeline, so that the heat expansion of the rapid cooling and rapid heating caused by the sprayed water is irregular, the pipeline is in a complex environment of the rapid cooling and rapid heating for a long time, and the heat expansion and cold contraction of the pipeline shell are unstable. The pipeline is easy to crack, leak and pollute the environment. At the same time, the shell leaks, causing pressure fluctuations within the system, thereby affecting the quality of the soot.

At present, no effective technical means are used for placing the flue gas pipeline for cracking, and the flue gas pipeline at the position is replaced in time after the flue gas pipeline is put into practice for a certain period of time, so that the cost is increased.

Disclosure of Invention

The utility model aims to solve the technical problems that: the utility model overcomes the defects of the prior art and provides the carbon black flue gas pipeline jacket device, and the jacket pipe inside the flue gas pipeline is contacted with water, so that the rapid cooling and rapid heating of the flue gas pipeline are avoided, the flue gas pipeline is protected, the service life of the flue gas pipeline is prolonged, and the unexpected breakage of the flue gas pipeline is avoided.

The utility model solves the problems that the technical proposal adopted is as follows:

the carbon black flue gas pipeline jacket device comprises an upper supporting ring, a lower supporting ring and a jacket sleeve, wherein the upper supporting ring and the lower supporting ring are arranged inside a flue gas pipeline, the jacket sleeve is clamped between the upper supporting ring and the lower supporting ring, and a through hole is formed in the jacket sleeve.

Preferably, the outer wall of the jacket pipe is arranged at intervals with the inner wall of the flue gas pipeline.

Preferably, the end face of the supporting ring, which faces the clamping sleeve, is concavely provided with an annular groove, and the upper end and the lower end of the clamping sleeve are respectively inserted into the groove.

The jacket pipe comprises a plurality of arc-shaped plates, and the through holes are positioned on the arc-shaped plates. The arc plates are distributed in an annular array around the axis of the flue gas pipeline, and two adjacent arc plates are arranged at intervals.

Preferably, a plurality of elastic connecting devices are connected between two adjacent arc plates.

Preferably, the resilient connecting means is a spring.

Preferably, a sliding plate is connected between two adjacent arc plates.

Preferably, the vertical end surface of the arc plate is concavely provided with a chute, and the sliding plate is inserted in the chute.

Preferably, one end of the sliding plate is fixedly connected with the arc-shaped plate, and the other end of the sliding plate is inserted into the sliding groove of the adjacent arc-shaped plate.

Preferably, the inner diameter of the through hole is larger than the outer diameter of the shower pipe.

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

(1) The jacket pipe is added, and quenching water is sprayed into the jacket pipe and does not directly contact with the flue gas pipeline, so that the service life of the flue gas pipeline is prolonged, and accidental breakage is avoided.

(2) The price arrangement between the arc plates leaves a space in the expansion and contraction process, so that the stress is eliminated, and the service life of the sleeve is prolonged.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a diagram showing the internal structure of a jacket device for a carbon black flue gas pipeline,

FIG. 2 is a first structural view of a jacket pipe in the jacket device of the carbon black flue gas pipeline,

FIG. 3 is a second construction diagram of jacket pipe in the jacket device for carbon black flue gas pipeline of the present utility model,

figure 4 is a cross-sectional view of figure 3,

fig. 5 is a cross-sectional view of a single plate of the jacket tube of fig. 3.

In the figure, a 1-flue gas pipeline, a 2-supporting ring, a 201-groove, a 3-clamping sleeve, a 301-arc-shaped plate, a 3011-chute, a 302-elastic connecting device, a 303-sliding plate, a 4-through hole and a 5-water spraying pipe are arranged.

Detailed Description

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The drawings are the best mode of the carbon black flue gas pipe jacket device, and the utility model is further described in detail below with reference to the drawings.

The carbon black flue gas pipeline jacket device comprises an upper supporting ring 2 and a lower supporting ring 2 and a jacket pipe 3.

The upper supporting ring 2 and the lower supporting ring 2 are arranged inside the flue gas pipeline 1, and the outer wall of the supporting ring 2 is fixedly connected with the inner wall of the flue gas pipeline 1 through welding or other modes.

The jacket pipe 3 is clamped between the upper supporting ring 2 and the lower supporting ring 2, a through hole 4 is arranged on the jacket pipe 3, and the tail end of the water spraying pipe 5 penetrates through the through hole 4 to spray water into the jacket pipe 3.

For connection, an annular groove 201 is concavely arranged on the end face of the support ring 2 facing the jacket pipe 3, and the upper end and the lower end of the jacket pipe 3 are respectively inserted into the groove 201.

In the water spraying process, the temperature of the jacket pipe 3 changes sharply, the volume changes, stress is generated, and in order to avoid the stress being conducted to the flue gas pipeline 1, the outer wall of the jacket pipe 3 and the inner wall of the flue gas pipeline 1 are arranged at intervals.

In order to eliminate the influence of stress, the service life of the jacket sleeve 3 is prolonged, and the jacket sleeve 3 adopts the following two structural modes:

first kind: the jacket pipe 3 comprises a plurality of arc plates 301, through holes 4 are formed in the arc plates 301, the arc plates 301 which are vertically arranged are distributed in an annular array around the axis of the flue gas pipeline 1, and two adjacent arc plates 301 are arranged at intervals.

A plurality of elastic connecting devices 302 are connected between two adjacent arc plates 301. The resilient connection 302 is a spring.

Second kind: the jacket pipe 3 comprises a plurality of arc plates 301, through holes 4 are formed in the arc plates 301, the arc plates 301 which are vertically arranged are distributed in an annular array around the axis of the flue gas pipeline 1, and two adjacent arc plates 301 are arranged at intervals.

A sliding plate 303 is connected between two adjacent arc plates 301. A chute 3011 is concavely arranged on the vertical end surface of the arc plate 301, and the sliding plate 303 is inserted into the chute 3011. One end of the sliding plate 303 is fixedly connected with the arc-shaped plate 301, and the other end of the sliding plate 303 is inserted into the sliding groove 3011 of the adjacent arc-shaped plate 301.

Both modes are to eliminate stress by displacement of the arc plate 301, so as to avoid interference between the spray pipe 5 and the through hole 4 in the displacement or deformation process of the arc plate 301, and the inner diameter of the through hole 4 is larger than the outer diameter of the spray pipe 5.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (10)

1. Carbon black flue gas pipeline presss from both sides cover device, its characterized in that:

comprises an upper supporting ring (2) and a lower supporting ring (3) and a jacket pipe (3),

the upper support ring (2) and the lower support ring (2) are arranged inside the flue gas pipeline (1), the jacket pipe (3) is clamped between the upper support ring (2) and the lower support ring (2), and the jacket pipe (3) is provided with a through hole (4).

2. The carbon black flue gas conduit jacket apparatus according to claim 1, wherein:

the outer wall of the sleeve (3) and the inner wall of the flue gas pipeline (1) are arranged at intervals.

3. The carbon black flue gas conduit jacket apparatus according to claim 2, wherein:

the end face of the supporting ring (2) facing the jacket pipe (3) is concavely provided with an annular groove (201), and the upper end and the lower end of the jacket pipe (3) are respectively inserted into the groove (201).

4. A carbon black flue gas conduit jacket apparatus according to claim 3, wherein:

the clamping sleeve (3) comprises a plurality of arc-shaped plates (301), the through holes (4) are positioned on the arc-shaped plates (301),

a plurality of arc plates (301) which are vertically arranged are distributed in an annular array around the axis of the flue gas pipeline (1),

and two adjacent arc plates (301) are arranged at intervals.

5. The carbon black flue gas conduit jacket apparatus according to claim 4, wherein:

a plurality of elastic connecting devices (302) are connected between two adjacent arc plates (301).

6. The carbon black flue gas conduit jacket apparatus according to claim 5, wherein:

the elastic connection means (302) is a spring.

7. The carbon black flue gas conduit jacket apparatus according to claim 4, wherein:

a sliding plate (303) is connected between two adjacent arc plates (301).

8. The carbon black flue gas conduit jacket apparatus according to claim 7, wherein:

a chute 3011 is concavely arranged on the vertical end surface of the arc-shaped plate 301, and the sliding plate 303 is inserted into the chute 3011.

9. The carbon black flue gas conduit jacket apparatus according to claim 8, wherein:

one end of the sliding plate (303) is fixedly connected with the arc-shaped plate (301), and the other end of the sliding plate (303) is inserted into the sliding groove (3011) of the adjacent arc-shaped plate (301).

10. The carbon black flue gas conduit jacket apparatus according to any one of claims 1 to 9, wherein:

the inner diameter of the through hole (4) is larger than the outer diameter of the water spraying pipe (5).