CN213238443U

CN213238443U - Blackbody energy-saving element

Info

Publication number: CN213238443U
Application number: CN202022169865.4U
Authority: CN
Inventors: 杨柯; 潘亚莉
Original assignee: Sichuan Keda Energy Saving Technology Co ltd
Current assignee: Sichuan Keda Energy Saving Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-05-18
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to a black body energy-saving component field, concretely relates to black body energy-saving component. The furnace top fixing device comprises a first element, wherein a first through hole and a plurality of second through holes are formed in the bottom of an inner cavity of the first element, the first through hole is formed in the center of the inner cavity of the first element, the second through holes are formed in the center of the inner cavity of the first element, the first through hole and the second through holes are used for fixing the first element and the furnace top, and a plurality of grooves are formed in the side wall of the inner cavity of the first element and are longitudinally arranged. The arrangement of first component through first through-hole and a plurality of second through-hole makes black body energy-saving component obtain fixedly with the many positions of furnace roof, compares in traditional single fastener means of fixing more firm, and the setting of a plurality of recesses on the first component has further increased the inside heat transfer area of cavity, more is favorable to heat conduction.

Description

Blackbody energy-saving element

Technical Field

The utility model relates to a black body energy saving technology field, especially a black body energy saving component.

Background

The heat transfer theory and a large number of engineering cases prove that the increase of the area of the inner surface of the furnace lining and the increase of the blackness of the inner surface of the furnace lining can strengthen the radiation heat transfer between furnace gas and a furnace wall, so that the temperature of the inner surface of the furnace lining is increased, and the radiation heat transfer between the furnace lining and a heated workpiece is strengthened.

According to a heating furnace heat transfer mathematical model and a physical blackbody theory, a porous ceramic material is selected to be integrally molded to form an industrial standard blackbody energy-saving element which integrates three functions of increasing the hearth area, improving the hearth emissivity and increasing the irradiance, and the blackness (total emissivity) of the element reaches epsilon 0.5 and is called as a blackbody element for short.

The black body element has the following advantages: (1) the emissivity of the hearth is improved and does not basically attenuate along with the temperature; (2) the heat transfer area of the hearth is doubled, and the heat radiation arrival rate is improved; (3) the long-term working at 1400 ℃ high temperature has the service life of more than 3 years.

The existing numerous blackbody energy-saving elements are still installed on the furnace top insecurely in the installation and use processes, and the heat transfer area of the hearth increased by the blackbody energy-saving elements needs to be further improved.

SUMMERY OF THE UTILITY MODEL

The invention of the utility model aims to: the black body energy-saving element is provided aiming at the defects that the black body energy-saving element is not firmly installed with the furnace top in the prior art, so that the falling rate is high and the heat transfer area of the black body energy-saving element to a hearth needs to be further improved.

In order to realize the purpose, the utility model discloses a technical scheme be:

the utility model provides a black body energy-saving element, includes first component, first component inner chamber bottom is equipped with a first through-hole and centers on a plurality of second through-holes that first through-hole set up, first through-hole and a plurality of the second through-hole is used for the fixing of first component and furnace roof, be equipped with a plurality of recesses on the first component inner chamber lateral wall, it is a plurality of the recess vertically sets up.

The arrangement of first component through first through-hole and a plurality of second through-hole makes black body energy-saving component obtain fixedly with the many positions of furnace roof, compares in traditional single fastener means of fixing more firm, and the setting of a plurality of recesses on the first component has further increased the inside heat transfer area of cavity, more is favorable to heat conduction.

As the utility model discloses a preferred scheme, the second through-hole includes four, four the second through-hole set up respectively in four upper and lower, left and right azimuths of first component inner chamber bottom, with the section of the axis of second through-hole is "T" type.

As the utility model discloses a preferred scheme, the second through-hole includes threely, and three shown second through-hole centers on first through-hole circumference is evenly arranged, just the section that the axis of second through-hole dissected formation is "T" type.

The arrangement of the two second through holes can ensure the tightness of the connection between the first element and the stove top.

As the utility model discloses an optimal selection scheme, it is a plurality of the recess is parallel to each other the setting, the recess is rectangular form, every the section of recess is narrow under wide sector form, is favorable to the increase like this the heat transfer area of the inner chamber lateral wall of first component further improves the heat radiation rate of arrival.

Although the first element and the furnace top are firmly fixed through the first through hole and the plurality of second through holes, one defect still exists in that the fastener for fixing the first element and the furnace top is exposed to the air, and the fastener is damaged under the influence of high temperature to a certain extent in the long-term application process of the heating furnace, so that the first element and the furnace top are loosened to cause the falling off of the black body energy-saving element, therefore, as a preferable scheme of the utility model, the black body energy-saving element also comprises a second element, the second element and the first element are coaxially nested, and the second element and the first element are fixed through the fastener;

a third through hole is formed in the bottom of the second element and comprises a first groove part and a second groove part, the first groove part and the second groove part are coaxially arranged in parallel, the first groove part is a part close to the first through hole, the inner diameters of the first groove part and the first through hole are the same, and the inner diameter of the second groove part is larger than that of the first groove part; the fastener penetrates through the third through hole, the first through hole and the furnace top to be fixedly connected.

In the process of fixing the black body energy-saving element and the furnace top, the four second through holes are fixed with the furnace top through fasteners respectively, and then the second element, the first element and the furnace top are fixed well through the fasteners. The arrangement of the second element can play a certain protection role on the fastener in the second through hole on one hand, and prevent the energy-saving element of part of the black body from falling off or loosening after the energy-saving element is used for a certain period of time. The arrangement of the second main body can further increase the heat transfer area of the black body inner cavity and improve the heat conductivity on the one hand; on the other hand, the second element can protect the fastening piece for fixing the blackbody energy-saving element and the furnace top to a certain extent, the fastening piece is prevented from being damaged by high temperature of more than 1000 ℃ in the furnace body, and the falling rate of the blackbody energy-saving element is increased.

As the preferred scheme of the utility model, the cavity of first component and second component is cylindricly, first component cavity bottom diameter is greater than the diameter of the outside bottom of second component.

As the preferred scheme of the utility model, after second component and first component are fixed, two independent spaces have been formed at black body energy-saving component inner chamber, be respectively by the first inner chamber that second component formed with the second inner chamber that annular space formed between first component and the second component.

As the preferred scheme of the utility model, still include infrared coating, infrared coating includes radiation powder matrix and binder, the even surface that is attached to black body energy-saving component of infrared coating. The infrared coating meets the operation condition of the heating furnace, and has high emissivity and high stability at high temperature; the arrangement of the infrared coating further improves the heat insulation performance of the black body energy-saving element and prolongs the service life of the refractory material.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the arrangement of the first element through the first through holes and the second through holes enables the black body energy-saving element to be fixed with multiple parts of the furnace top, and compared with the traditional method of fixing by a single fastener, the black body energy-saving element is firmer, and the black body energy-saving element and the furnace hearth base material can be fixed together firmly for a long time, so that the installation reliability of the energy-saving element is improved, and the service life of the energy-saving element and the long-term continuous energy-saving efficiency of the heating furnace are ensured.

2. The arrangement of the grooves on the first element further increases the heat transfer area inside the cavity, is more favorable for heat conduction, and improves the emissivity of the hearth and the heat radiation arrival rate.

3. The arrangement of the second element can protect the fastener in the second through hole to a certain extent, further increase the heating area of the inner side of the cavity and further improve the emissivity of the hearth.

Drawings

Fig. 1 is a schematic top view of a first element of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a schematic top view of the present invention;

FIG. 4 is a cross-sectional view taken at C-C of the present invention;

FIG. 5 is a top view of a second element;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 5;

FIG. 7 is a schematic top view of the first element according to embodiment 2;

the labels in the figure are: 1-a first element, 2-a first through hole, 3-a second through hole, 4-a groove, 5-a second element, 6-a third through hole, 61-a first groove part, 62-a second groove part, 7-a first inner cavity, 8-a second inner cavity, and 9-an infrared layer.

Detailed Description

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

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

The utility model provides a blackbody energy-saving element, as shown in fig. 1-6, includes

first component

1, 1 inner chamber bottom of first component is equipped with a first through-hole 2 and centers on a plurality of second through-holes 3 that first through-hole 2 set up, specifically, in this embodiment 1, second through-hole 3 includes four, four second through-hole 3 set up respectively in four upper and lower, left and right azimuths of 1 inner chamber bottom of first component, with the section of the axis of second through-hole 3 is "T" type. The T-shaped second through hole 3 can be well matched with a fastener, meanwhile, the top of the fastener 10 and the bottom of the inner cavity of the first element 1 are positioned on the same plane, the contact area of the second through hole 3 and air is reduced, the fastener 10 is protected to a certain extent, and the first through hole 2 and the plurality of second through holes 3 are used for fixing the first element 1 and the furnace roof 3;

the side wall of the inner cavity of the first element 1 is provided with a plurality of grooves 4, and the plurality of grooves 4 are longitudinally arranged. Specifically, a plurality of recess 4 is parallel to each other, recess 4 is rectangular form, every recess 4's cross-section is narrow sector form wide down, is favorable to increasing like this the heat transfer area of the inner chamber lateral wall of first component 1, further improves the heat radiation rate of arrival.

Further, in order to overcome the problem that the fastening member 10 fixed to the first element 1 and the furnace top is exposed to air, and the fastening member 10 is damaged under the influence of high temperature to some extent during the long-term application of the heating furnace, so that the first element 1 and the furnace top are loosened to cause the black body energy-saving element to fall off, therefore, as a preferred scheme of the present invention, the present invention further comprises a second element 5, wherein the second element 5 and the first element 1 are coaxially nested, the second element 5 and the first element 1 are fixed by the fastening member 10, the bottom of the second element 5 is provided with a third through hole 6, the third through hole 6 comprises a first groove part 61 and a second groove part 62, the first groove part 61 and the second groove part 62 are coaxially juxtaposed, the first groove part 61 is a part close to the first through hole 2, and the first groove part 61 has the same inner diameter as the first through hole 2, the inner diameter of the second groove portion 62 is larger than the inner diameter of the first groove portion 62.

Further, the cavities of the first element 1 and the second element 5 are both cylindrical, and the diameter of the bottom of the cavity of the first element 1 is larger than that of the bottom of the outer side of the second element 5. After the second element 5 and the first element 1 are fixed, two independent spaces are formed in the inner cavity of the blackbody energy-saving element, namely a first inner cavity 7 formed by the second element 5 and a second inner cavity 8 formed by an annular gap between the first element 1 and the second element 5.

Finally, still further, the black body energy-saving element comprises an infrared coating 9, wherein the infrared coating 9 comprises a radiation powder base material and a binder, and the infrared coating 9 is uniformly attached to the outer surface of the black body energy-saving element. The infrared coating 9 meets the operation condition of the heating furnace, and the infrared coating 9 has high emissivity and high stability at high temperature; the arrangement of the infrared coating 9 further improves the heat insulation performance of the black body energy-saving element and prolongs the service life of the refractory material.

Example 2

Example 2 is mounted in the same manner as the blackbody energy saving element of example 1 in example 1, except that the second through holes 3 include three, as shown in fig. 7; the three second through holes 3 are uniformly arranged around the first through hole 2 in the circumferential direction, and the section formed by sectioning the central axis of the second through hole is T-shaped.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a black body energy-saving element, includes first component (1), its characterized in that, first component (1) inner chamber bottom is equipped with one first through-hole (2) and centers on a plurality of second through-holes (3) that first through-hole (2) set up, first through-hole (2) and a plurality of second through-hole (3) are used for first component (1) is fixed with the furnace roof, be equipped with a plurality of recesses (4), a plurality of on first component (1) inner chamber lateral wall recess (4) vertically set up.

2. A blackbody energy saving element according to claim 1, wherein the number of the second through holes (3) is four, and the four second through holes (3) are respectively disposed at four positions of the bottom of the inner cavity of the first element (1), i.e. up, down, left and right, and the section of the central axis of the second through hole (3) is "T" shaped.

3. A blackbody energy saving element as claimed in claim 1, wherein the number of the second through holes (3) is three, the three second through holes (3) are evenly arranged around the circumference of the first through hole (2), and the section formed by cutting the central axis of the second through hole (3) is "T" shaped.

4. A blackbody energy saving element according to claim 1, wherein a plurality of the grooves (4) are arranged in parallel, the grooves (4) are long, and the cross section of each groove (4) is a sector with a narrow top and a wide bottom.

5. A blackbody energy saving element according to claim 4, further comprising a second element (5), wherein the second element (5) and the first element (1) are coaxially nested, and the second element (5), the first element (1) and the furnace top are fixed by a fastener (10);

a third through hole (6) is formed in the bottom of the second element (5), the third through hole (6) comprises a first groove portion (61) and a second groove portion (62), the first groove portion (61) and the second groove portion (62) are coaxially arranged in parallel, the first groove portion (61) is a portion close to the first through hole (2), the inner diameter of the first groove portion (61) is the same as that of the first through hole (2), and the inner diameter of the second groove portion (62) is larger than that of the first groove portion (61);

the fastener (10) penetrates through the third through hole (6), the first through hole (2) and is fixedly connected with the furnace top.

6. A blackbody energy saving element according to claim 5, wherein the cavity of the first element (1) and the cavity of the second element (5) are both cylindrical, and the diameter of the bottom of the cavity of the first element (1) is larger than that of the outside bottom of the second element (5).

7. A blackbody energy saving element as claimed in claim 6, wherein the inner cavity of the blackbody energy saving element comprises two spaces, the two spaces are respectively: a first inner cavity (7) formed by the second element (5) and a second inner cavity (8) formed by an annular space between the first element (1) and the second element (5).