CN210088822U

CN210088822U - H-shaped fin auxiliary economizer

Info

Publication number: CN210088822U
Application number: CN201920629724.0U
Authority: CN
Inventors: 李超
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-02-18
Anticipated expiration: 2029-05-06

Abstract

An H-shaped fin auxiliary economizer relates to the technical field of a coke dry quenching water supply system; the auxiliary economizer body consists of a first coiled pipe and a second coiled pipe; the first coiled pipe consists of a first straight pipe group, a first bent pipe and a second bent pipe; a plurality of straight pipe groups I are arranged in parallel up and down; each group of the first straight pipe group consists of two first straight pipes which are arranged in parallel up and down; the left ends of two adjacent first straight pipes are connected through a first bent pipe; the right ends of two adjacent first straight pipes are connected through a second bent pipe; the second coiled pipe consists of a second straight pipe, a third bent pipe and a fourth bent pipe; the dust deposition probability is reduced, the operation heat exchange efficiency of the equipment is improved, and the service life is prolonged.

Description

H-shaped fin auxiliary economizer

Technical Field

The utility model relates to a dry quenching water supply system technical field, concretely relates to coal economizer is vice to H type fin.

Background

The dry quenching is the most advanced quenching technology in the steel industry at home and abroad at present and is a low-carbon economic project greatly popularized by China. In the iron and steel combined enterprise, the iron making system accounts for more than 50% of the total energy consumption, and the pollution is the most serious, so the iron making system is always the key point of energy conservation and environmental protection of the metallurgical enterprise, and in the iron making system, the largest energy conservation and environmental protection technical measure belongs to the dry quenching technology.

The traditional secondary economizer adopts a spiral fin design. The helical fin auxiliary economizer leads the flue gas to change the flowing direction to rotate due to the helical angle of the helical fins, so that coke powder particles are separated from the flue gas, and dust accumulation is easy to form; another reason is that the fins are not parallel to the airflow and the back surface is prone to dust deposition. And the reasons such as small arrangement distance cause the finned tube deposition to be more serious, and the deposition causes further reduction of heat efficiency and corrosion, and further accelerates equipment damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a simple structure, reasonable in design, convenient to use's the vice economizer of H type fin reduces deposition probability, improve equipment operation heat exchange efficiency, increase of service life.

In order to achieve the above object, the utility model adopts the following technical scheme: it comprises an auxiliary economizer body; the auxiliary economizer body consists of a first coiled pipe and a second coiled pipe; the first coiled pipe consists of a first straight pipe group, a first bent pipe and a second bent pipe; a plurality of straight pipe groups I are arranged in parallel up and down; each group of the first straight pipe group consists of two first straight pipes which are arranged in parallel up and down; the left ends of two adjacent first straight pipes are connected through a first bent pipe; the right ends of two adjacent first straight pipes are connected through a second bent pipe; the second coiled pipe consists of a second straight pipe, a third bent pipe and a fourth bent pipe; two second straight pipes are clamped between each first straight pipe group; the left ends of two adjacent second straight pipes are connected through a third bent pipe; the right ends of two adjacent second straight pipes are connected through a fourth bent pipe; a plurality of H-shaped fin mechanisms are sleeved on the outer walls of the first straight pipe and the second straight pipe;

the H-shaped fin mechanism consists of a first fin and a second fin; the first fin is arranged on the rear side of the second fin; the arc-shaped structures in the middle of the inner side surfaces of the first fin and the second fin are fixed on the outer walls of the first straight pipe and the second straight pipe; gaps are reserved between the upper portion and the lower portion of the inner side surfaces of the first fin and the second fin.

Furthermore, pipe clamps are fixed on the front parts of the left side and the right side of the auxiliary economizer body.

Further, the gap is 5mm-10 mm.

Furthermore, the first bent pipe, the second bent pipe, the third bent pipe and the fourth bent pipe are all provided with a wear-resistant tile.

Furthermore, the left end and the right end of the first straight pipe and the second straight pipe are both provided with a second anti-abrasion tile; the right side surface of the second abrasion-proof tile positioned on the left side is arranged on the left side of the adjacent H-shaped fin mechanism; the left side surface of the second abrasion-proof tile positioned on the right side is arranged on the right side of the adjacent H-shaped fin mechanism.

After the structure is adopted, the utility model discloses beneficial effect does: a vice economizer of H type fin, reduce deposition probability, improve equipment operation heat exchange efficiency, increase of service life, the practicality is stronger, the utility model has the advantages of simple structure sets up rationally, the cost of manufacture low.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a structural view of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a sectional view taken along line D-D in fig. 2.

Fig. 4 is an enlarged view of the portion C in fig. 1.

Fig. 5 is an enlarged view of a portion B in fig. 1.

Description of reference numerals:

the auxiliary economizer comprises an auxiliary economizer body 1, a first coiled pipe 2, a first straight pipe 2-1, a first bent pipe 2-2, a second bent pipe 2-3, a second coiled pipe 3, a second straight pipe 3-1, a third bent pipe 3-2, a fourth bent pipe 3-3, an H-shaped fin mechanism 4, a first fin 4-1, a second fin 4-2, a gap 5, a pipe clamp 6, a first anti-wear tile 7 and a second anti-wear tile 8.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 5, the technical solution adopted by the present embodiment is: it comprises a sub-economizer body 1; the auxiliary economizer body 1 is composed of a first coiled pipe 2 and a second coiled pipe 3; the diameters of the first coiled pipe 2 and the second coiled pipe 3 are the same; the first coiled pipe 2 consists of a first straight pipe group, a first bent pipe 2-2 and a second bent pipe 2-3; the three groups of the first straight pipes 2-1 are arranged in parallel up and down; each group of the first straight pipe group consists of two first straight pipes 2-1 which are arranged in parallel up and down; the left ends of two adjacent first straight pipes 2-1 are fixedly connected through a first bent pipe 2-2 in a welding manner; the right ends of two adjacent first straight pipes 2-1 are fixedly connected through a second bent pipe 2-3 in a welding manner; the second coiled pipe 3 consists of a second straight pipe 3-1, a third bent pipe 3-2 and a fourth bent pipe 3-3; two second straight pipes 3-1 are clamped between each first straight pipe group; the left ends of two adjacent second straight pipes 3-1 are fixedly connected through a third bent pipe 3-2 in a welding manner; the right ends of two adjacent second straight pipes 3-1 are fixedly connected through a fourth bent pipe 3-3 in a welding manner; the outer walls of the first straight pipe 2-1 and the second straight pipe 3-1 are respectively sleeved with a plurality of H-shaped fin mechanisms 4;

the H-shaped fin mechanism 4 consists of a first fin 4-1 and a second fin 4-2; the first fin 4-1 and the second fin 4-2 are both made of Q235 material; the first fin 4-1 is arranged at the rear side of the second fin 4-2; arc-shaped structures in the middle of the inner side surfaces of the first fin 4-1 and the second fin 4-2 are welded and fixed on the outer walls of the first straight pipe 2-1 and the second straight pipe 3-1 through flash resistance welding; gaps 5 are reserved between the upper portion and the lower portion of the inner side surfaces of the first fin 4-1 and the second fin 4-2.

Furthermore, pipe clamps 6 are welded and fixed on the front parts of the left side and the right side of the auxiliary economizer body 1; the pipe clamp 6 is convenient for mounting the auxiliary economizer body 1; the pipe clamp 6 is made of Q235 material.

Further, the gap 5 is 10 mm.

Furthermore, a first anti-abrasion tile 7 is welded and fixed on the first bent pipe 2-2, the second bent pipe 2-3, the third bent pipe 3-2 and the fourth bent pipe 3-3; wear prevention tile 7 is Q235 wear prevention tile.

Furthermore, the left end and the right end of the first straight pipe 2-1 and the second straight pipe 3-1 are both provided with a second anti-abrasion tile 8; the second wear-resistant tile 8 is a Q235 wear-resistant tile; the right side surface of the second abrasion-proof tile 8 positioned on the left side is arranged on the left side of the adjacent H-shaped fin mechanism 4; the left side surface of the second abrasion-proof tile 8 on the right side is arranged on the right side of the adjacent H-shaped fin mechanism 4.

The working principle of the specific embodiment is as follows: the first fin 4-1 and the second fin 4-2 on the H-shaped fin mechanism 4 are welded with the first straight pipe 2-1 and the second straight pipe 3-1, the tensile strength of welding seams is high, and the heat conduction performance is good; because the first fin 4-1 and the second fin 4-2 are welded on two sides where dust is not easy to accumulate, airflow can smoothly flow between the gaps, the direction of smoke is parallel to the first fin 4-1 and the second fin 4-2, dust accumulation on the first fin 4-1 and the second fin 4-2 of the smoke sweeping pipe is easy to guide, and dust is not easy to accumulate; the first coiled pipe 2 and the second coiled pipe 3 are arranged in a row; the first coiled pipe 2 and the second coiled pipe 3 divide the circulating gas air flue into a plurality of small areas and have a flow equalizing effect on air flow. Under the same other conditions, compared with the spiral fin type coal economizer adopting staggered arrangement, the wear-resistant service life of the spiral fin type coal economizer is 3-4 times longer, and the service life is prolonged.

After adopting above-mentioned structure, this embodiment's beneficial effect does:

1. the outer sides of the first straight pipe 2-1 and the second straight pipe 3-1 are sleeved with a plurality of H-shaped fin mechanisms 4, the internal airflow is changed into vertical airflow from original spiral airflow, the leeward surface is reduced, impurities such as coal ash and the like in the airflow can be timely discharged, the ash deposition probability is greatly reduced, the problem of reduction of heat exchange efficiency caused by ash deposition on the heated surface is effectively avoided, and the heat transfer efficiency is high;

2. the air flow in the auxiliary economizer body 1 is smooth, so that impurities such as coal ash and the like are timely discharged, the ash deposition probability is greatly reduced, the operation heat exchange efficiency of equipment is improved, the probability that the equipment is corroded is reduced, the equipment is improved, and the environmental protection and economic benefits are very high.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. An H-shaped fin auxiliary economizer comprises an auxiliary economizer body (1); the method is characterized in that: the auxiliary economizer body (1) is composed of a first coiled pipe (2) and a second coiled pipe (3); the first coiled pipe (2) consists of a first straight pipe group, a first bent pipe (2-2) and a second bent pipe (2-3); a plurality of straight pipe groups I are arranged in parallel up and down; each group of the first straight pipe group consists of two first straight pipes (2-1) which are arranged in parallel up and down; the left ends of two adjacent first straight pipes (2-1) are connected through a first bent pipe (2-2); the right ends of two adjacent first straight pipes (2-1) are connected through a second bent pipe (2-3); the second coiled pipe (3) consists of a second straight pipe (3-1), a third bent pipe (3-2) and a fourth bent pipe (3-3); two second straight pipes (3-1) are clamped between each first straight pipe group; the left ends of two adjacent second straight pipes (3-1) are connected through a third bent pipe (3-2); the right ends of two adjacent second straight pipes (3-1) are connected through a fourth bent pipe (3-3); a plurality of H-shaped fin mechanisms (4) are sleeved on the outer walls of the first straight pipe (2-1) and the second straight pipe (3-1);

the H-shaped fin mechanism (4) is composed of a first fin (4-1) and a second fin (4-2); the first fin (4-1) is arranged at the rear side of the second fin (4-2); the arc-shaped structures in the middle of the inner side surfaces of the first fin (4-1) and the second fin (4-2) are fixed on the outer walls of the first straight pipe (2-1) and the second straight pipe (3-1); gaps (5) are reserved between the upper portion and the lower portion of the inner side surfaces of the first fin (4-1) and the second fin (4-2).

2. The H-shaped fin secondary economizer according to claim 1, wherein: the front parts of the left side and the right side of the auxiliary economizer body (1) are respectively fixed with a pipe clamp (6).

3. The H-shaped fin secondary economizer according to claim 1, wherein: the gap (5) is 5mm-10 mm.

4. The H-shaped fin secondary economizer according to claim 1, wherein: the first bent pipe (2-2), the second bent pipe (2-3), the third bent pipe (3-2) and the fourth bent pipe (3-3) are respectively provided with a first anti-abrasion tile (7).

5. The H-shaped fin secondary economizer according to claim 1, wherein: the left end and the right end of the first straight pipe (2-1) and the second straight pipe (3-1) are respectively provided with a second anti-abrasion tile (8); the right side surface of a second abrasion-proof tile (8) positioned on the left side is arranged on the left side of the adjacent H-shaped fin mechanism (4); the left side surface of the second abrasion-proof tile (8) positioned on the right side is arranged on the right side of the adjacent H-shaped fin mechanism (4).