CN213687928U

CN213687928U - Kiln heat transfer element

Info

Publication number: CN213687928U
Application number: CN202023002312.6U
Authority: CN
Inventors: 莫晓东; 倪冲; 余斌; 兰洪
Original assignee: Sichuan Keda Energy Saving Technology Co ltd
Current assignee: Sichuan Keda Energy Saving Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-07-13
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a furnace heat transfer element, which comprises a square column-shaped base body (1), wherein one end of the base body (1) is symmetrically provided with a first inclined section (11) and a second inclined section (12), the other end is provided with a reflection hole (2), a straight section (13) is arranged between the two inclined sections, a step hole structure is arranged in the reflection hole (2), and the hole bottom of the reflection hole (2) is of an arc surface structure; the outer side wall of the base body (1) is symmetrically provided with two grooves (14), and each groove (14) comprises an arc section (141) and an oblique straight section (142). The utility model discloses set up two oblique sections and flat section so that installation angle's needs, set up the recess of step hole and lateral wall, increase the area of heat radiation transfer, improve heat transfer efficiency.

Description

Kiln heat transfer element

Technical Field

The utility model relates to an energy-conserving field of industrial furnace, in particular to furnace heat transfer component.

Background

In order to improve the energy utilization rate of the high-temperature furnace and reduce the energy consumption, the problem of exploration by science and technology personnel is always solved. The high-temperature air combustion technology only solves the problem of heat recovery, and the adopted high-temperature coating can improve the radiation heat transfer coefficient of a furnace body, but has short service life and can not increase the heat transfer area. At present, especially when the area of the inner wall of the furnace kiln is large, the fixed end structure of the heat transfer element is single, so that the requirement of installing the heat transfer element at a plurality of positions and facing a workpiece is not met, and the requirement of improving the heat transfer efficiency of the workpiece can not be met even if the heat transfer element is arranged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a kiln heat transfer element which not only facilitates the installation of multiple positions, but also ensures the heat transfer efficiency.

The technical scheme of the utility model as follows:

a furnace heat transfer element comprises a square-cylindrical base body, wherein one end of the base body is symmetrically provided with a first inclined section and a second inclined section, the other end of the base body is provided with a reflection hole, a straight section is arranged between the two inclined sections, the reflection hole comprises at least one cylindrical section and at least one conical section, the cylindrical section and the conical section form a stepped hole structure with a large outer part and a small inner part, and the hole bottom of the reflection hole is of an arc surface structure; the symmetry is equipped with two recesses on the lateral wall of base member, the recess includes circular arc section and oblique straight section, two the least significant end of oblique section links to each other with the one end that corresponds end circular arc section, the least significant end of oblique straight section links to each other with the other end of circular arc section, and the most significant end of this oblique straight section links to each other with the lateral wall that the base member corresponds the end, and when first oblique section or second oblique section were as the stiff end, the recess that corresponds the end formed the cross-section with the corresponding position of stove inner wall and is conical cell body structure, not only increased thermal radiation's reflection area, has still reduced the dead angle of thermal radiation transmission.

By adopting the structure, the first inclined section, the second inclined section and the flat section are arranged on the base body, so that the base body can be used as a universal part to be convenient for fixing at a plurality of positions on the inner wall of the furnace kiln, different angles or parallels with a heated workpiece are formed according to the geometric position relation between the mounting surface and the absorption surface, the requirement of multi-angle radiant heat is met, and the problem of high cost caused by classified manufacturing due to fixing positions is avoided; the reflecting hole is arranged in the base body, the step hole structure is arranged in the reflecting hole, various disordered heat rays are absorbed, columnar heat rays are formed through refraction of the step hole and the arc surface structure at the bottom of the hole, and then the columnar heat rays are emitted to a heated workpiece from different angles, so that the heating production efficiency can be effectively improved, and the service life is prolonged; in addition, the groove is formed in the base body, when any one of the two inclined sections serves as a fixed end, the arc section corresponding to the groove at the end is abutted to the corresponding position of the inner wall of the furnace kiln, and the inclined section and the straight section jointly form a groove body structure with a conical section, so that the reflection area of heat radiation is increased, the dead angle of heat radiation transmission is reduced, and the heat conduction efficiency is effectively increased.

In order to simplify the structure and improve the heat transfer efficiency, it is preferable that three cylindrical sections and three conical sections are provided on the hole wall of the reflection hole, and the three cylindrical sections and the three conical sections are alternately provided with each other.

For convenience of processing, the transverse dimensions of the longitudinal sections of the three cylindrical sections and the three conical sections are preferably decreased from outside to inside.

In order to guarantee the cavity radiation principle in the using process, the length-diameter ratio L/R of the reflecting hole is preferably 1.3-1.7.

In order to ensure that the openings of the heat transfer elements with different distances can point to the heated workpiece, preferably, the included angles between the first inclined section and the horizontal plane and the included angles between the second inclined section and the horizontal plane are 9-27 degrees.

In order to ensure high emissivity and stability, improve the heat-insulating property of the lining wall of the heating furnace and prolong the service life of the refractory material, the substrate is preferably made of a radiation powder base material and a binder injection material.

Has the advantages that: the utility model discloses set up two oblique sections and flat section so that installation angle's needs, set up the recess of step hole and lateral wall, increase the area of heat radiation transfer, improve heat transfer efficiency.

Drawings

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

Fig. 2 is a schematic cross-sectional structure diagram of the present invention.

Fig. 3 is a mounting state diagram of the present invention.

Detailed Description

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

As shown in fig. 1, 2 and 3, the utility model comprises a square column-shaped base body 1, wherein a first oblique section 11 and a second oblique section 12 are symmetrically arranged at one end of the base body 1, a reflection hole 2 is arranged at the other end of the base body, a straight section 13 is arranged between the two oblique sections, and the included angle range between the first oblique section 11 and the horizontal plane is 9-27 degrees; the reflection hole 2 comprises three cylindrical sections 21 and three conical sections 22, the cylindrical sections 21 and the conical sections 22 are alternately arranged to form a stepped hole structure with a large outside and a small inside, the transverse sizes of the longitudinal sections of the cylindrical sections 21 and the conical sections 22 are decreased progressively from outside to inside, and the hole bottom of the reflection hole 2 is of an arc surface structure.

The symmetry is equipped with two recesses 14 on the lateral wall of base member 1, recess 14 includes circular arc section 141 and oblique straight section 142, two the least significant end of oblique section links to each other with the one end that corresponds end circular arc section 141, the least significant end of oblique straight section 142 links to each other with the other end of circular arc section 141, and the most significant end of this oblique straight section 142 links to each other with the lateral wall that the base member 1 corresponds the end, and when first oblique section 11 or the oblique section 12 of second were regarded as the stiff end, the recess 14 that corresponds the end formed the cross-section with the corresponding position of stove inner wall and is conical cell body structure, not only increased thermal radiation's reflection area, has still reduced the dead angle of thermal radiation transmission.

The length-diameter ratio L/R of the reflecting holes 2 is 1.3-1.7; the matrix 1 is made of radiation powder base material and binder injection material.

The utility model discloses a use method as follows:

as shown in figures 1 to 3, a square column base body 1 is provided with a first inclined section 11, a second inclined section 12 and a flat section 13, which can be used as a universal part to be directly bonded and fixed at a plurality of positions on the inner wall of a furnace kiln, the position right facing a workpiece is bonded and fixed at the position of the flat section 13, and different angles or parallels with the heated workpiece are formed according to the geometric position relation between a mounting surface and an absorption surface, wherein the included angle range between the first inclined section 11 and the second inclined section 12 and the horizontal plane is 9-27 degrees, and according to the setting of the volume and the fixed position of the furnace kiln, the preferable angle can be sequentially selected from 9 degrees, 18 degrees and 27 degrees from near to far so as to meet the requirement of multi-angle radiation heat and improve the efficiency of the heat radiation.

The reflecting hole 2 is arranged in the base body 1 and comprises cylindrical sections 21 and conical sections 22 which are alternately arranged to form a stepped hole structure with a large outside and a small inside, and can absorb various disordered heat rays, the columnar heat rays are formed by refraction of the stepped hole and the arc surface structure at the bottom of the hole and then are emitted to a heated workpiece from different angles, the heating capacity of the heated workpiece in unit time period can be improved to more than 15%, the heating production efficiency can be effectively improved, and the service life can be prolonged; in addition, the groove 14 is arranged on the base body 1, when any one of the two inclined sections is used as a fixed end, the arc section 141 corresponding to the groove 14 at the end is abutted against the corresponding position of the inner wall of the kiln, and forms a groove body structure with a conical section together with the inclined straight section 142, namely the groove cavity structure of a common heat transfer element, so that the reflection area of heat radiation is increased, the dead angle of heat radiation transfer is reduced, and the heat conduction efficiency is effectively increased.

It should be noted that the oblique angle setting of the oblique section should be set in combination with the furnace volume and the size of the workpiece, and this embodiment is not unique.

The utility model discloses do not describe the part unanimously with prior art, do not describe herein any more.

The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.

Claims

1. A kiln heat transfer element characterized by: the reflecting hole structure comprises a square-column-shaped base body (1), wherein a first inclined section (11) and a second inclined section (12) are symmetrically arranged at one end of the base body (1), a reflecting hole (2) is formed at the other end of the base body, a straight section (13) is arranged between the two inclined sections, the reflecting hole (2) comprises at least one column-shaped section (21) and at least one conical section (22), the at least one column-shaped section (21) and the conical section (22) form a stepped hole structure with a large outer part and a small inner part, and the hole bottom of the reflecting hole (2) is of an arc surface structure; the symmetry is equipped with two recess (14) on the lateral wall of base member (1), recess (14) include circular arc section (141) and oblique straight section (142), two the least significant end of oblique section links to each other with the one end that corresponds end circular arc section (141), the least significant end of oblique straight section (142) links to each other with the other end of circular arc section (141), and the most significant end of this oblique straight section (142) links to each other with the lateral wall that base member (1) corresponds the end, and when first oblique section (11) or second oblique section (12) were as the stiff end, recess (14) that correspond the end formed the cross-section for conical cell body structure with the corresponding position of stove inner wall, not only increased the reflection area of thermal radiation, have still reduced the dead angle of thermal radiation transmission.

2. A kiln heat transfer element according to claim 1, characterized in that: the hole wall of the reflection hole (2) is provided with three cylindrical sections (21) and three conical sections (22), and the three cylindrical sections (21) and the three conical sections (22) are alternately arranged.

3. A kiln heat transfer element according to claim 2, characterized in that: the transverse sizes of the longitudinal sections of the three cylindrical sections (21) and the three conical sections (22) are all decreased from outside to inside.

4. A kiln heat transfer element according to claim 1, characterized in that: the length-diameter ratio L/R of the reflecting holes (2) is 1.3-1.7.

5. A kiln heat transfer element according to claim 1, characterized in that: the included angle range of the first inclined section (11) and the second inclined section (12) and the horizontal plane is 9-27 degrees.

6. A kiln heat transfer element according to claim 1, characterized in that: the matrix (1) is made of radiation powder base material and binder injection material.