CN218065365U - Hearth structure for improving heat efficiency - Google Patents

Hearth structure for improving heat efficiency Download PDF

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Publication number
CN218065365U
CN218065365U CN202221721546.2U CN202221721546U CN218065365U CN 218065365 U CN218065365 U CN 218065365U CN 202221721546 U CN202221721546 U CN 202221721546U CN 218065365 U CN218065365 U CN 218065365U
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China
Prior art keywords
heat exchanger
hearth
air
furnace
utility
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CN202221721546.2U
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Chinese (zh)
Inventor
吴煜
熊训香
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Jiangsu World High Tech Agricultural Equipment Co Ltd
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Jiangsu World High Tech Agricultural Equipment Co Ltd
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Abstract

The utility model relates to a hot-blast furnace technical field, in particular to furnace structure of increasing thermal efficiency, including furnace inner bag and heat exchanger, be provided with the wind channel between the bottom of furnace inner bag and the bottom of heat exchanger, the skin weld of furnace inner bag has the blade. The utility model is provided with the air duct for controlling the air flow direction between the hearth inner container and the heat exchanger, which can prevent the air which is primarily heated in the middle part and the upper part of the heat exchanger from being directly extracted by the hot air fan without being heated again by the hearth inner container; blades are arranged outside the hearth liner, so that the flow velocity of air outside the hearth liner can be effectively reduced, and the air is heated for a sufficient time and then is pumped out by the hot air fan; the thermal efficiency of the utility model can reach 75% -85%.

Description

Hearth structure for improving heat efficiency
Technical Field
The utility model relates to a hot-blast furnace technical field, in particular to furnace structure for improving heat efficiency.
Background
At present, traditional hot-blast furnace theory of operation is that material and heat after the furnace burning are taken out by smoke exhaust fan through the heat exchanger and are sent into appointed ash room and subside, and clean air is taken out and is sent into appointed equipment or stoving room after the machine rear portion through the heat exchanger primary heating, after the furnace reheating that the process temperature is higher, by hot air fan. But the main disadvantage of the structure is that the heat efficiency is low (the heat efficiency is only 60% -70%), which results in high use cost.
The main reasons for the low thermal efficiency are: there is no obvious structural member between the hearth and the heat exchanger to control the air flow direction, so that the air which is primarily heated by the heat exchanger is not available and is heated by the higher temperature of the hearth, and then is pumped out of the machine by the hot air blower.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problem of high use cost caused by low efficiency of the hearth structure in the related technology, and provides a hearth structure for improving heat efficiency.A wind channel for controlling the air flow direction is arranged between the hearth liner and the heat exchanger, so that the air primarily heated in the middle and upper part of the heat exchanger can be prevented from being directly extracted by the hot air fan without being heated again by the hearth liner; blades are arranged outside the hearth liner, so that the flow velocity of air outside the hearth liner can be effectively reduced, and the air is heated for a sufficient time and then is extracted by the hot air fan; the thermal efficiency of the utility model can reach 75% -85%.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a furnace structure of raising heat efficiency, includes furnace inner bag and heat exchanger, be provided with the wind channel between the bottom of furnace inner bag and the bottom of heat exchanger, the outer skin weld of furnace inner bag has the blade.
As a preferred scheme, the hearth inner container and the heat exchanger are both positioned in the hearth shell.
As a preferred scheme, a hot air fan is arranged at the top of the hearth shell and is positioned above the hearth liner.
Preferably, the top of the hearth shell is also provided with a smoke exhaust fan, and the smoke exhaust fan is positioned above the heat exchanger.
Preferably, the blades are of a helical structure.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model is provided with the air duct for controlling the air flow direction between the hearth inner container and the heat exchanger, which can prevent the air which is primarily heated in the middle part and the upper part of the heat exchanger from being directly extracted by the hot air fan without being heated again by the hearth inner container; blades are arranged outside the hearth liner, so that the flow velocity of air outside the hearth liner can be effectively reduced, and the air is heated for a sufficient time and then is extracted by the hot air fan; the thermal efficiency of the utility model can reach 75% -85%.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure:
1. the device comprises a hearth liner, 2 a heat exchanger, 3 an air duct, 4 a blade, 5 a hot air fan, 6 a smoke exhaust fan, 7 and a hearth shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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 invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, a furnace structure for improving heat efficiency, including furnace inner bag 1 and heat exchanger 2, be provided with wind channel 3 between furnace inner bag 1 and the heat exchanger 2, it is concrete, the bottom of heat exchanger 2 and the bottom of furnace inner bag 1 are connected to wind channel 3, the flow direction of income air in the furnace can be controlled to wind channel 3, the shape of wind channel 3 does not have special requirement, can realize carrying the air after 2 heats of heat exchanger to the bottom of furnace inner bag 1 from the bottom of heat exchanger 2 can, the outer surface welding of furnace inner bag 1 has blade 4, let follow blade 4 slowly transmit to the top by force from the air after 2 bottoms first heats of heat exchanger, let the air have sufficient heat time.
In one embodiment, the furnace liner 1 and the heat exchanger 2 are both located within the furnace housing 7.
In one embodiment, a hot air blower 5 is arranged at the top of the hearth shell 7, and the hot air blower 5 is positioned above the hearth liner 1 and used for pumping out heated air and sending the air to equipment needing hot air.
In one embodiment, the top of the furnace shell 7 is also provided with a smoke exhaust fan 6, and the smoke exhaust fan 6 is positioned above the heat exchanger 2 and used for discharging the generated smoke.
In one embodiment, the blades 4 are of helical construction.
The working principle is as follows: in order to improve the thermal efficiency of the hot blast stove, an air duct 3 for controlling the air flow direction is arranged between a hearth liner 1 and a heat exchanger 2, the air heated by the heat exchanger 2 is forcedly conveyed to the bottom of the hearth liner 1 from the bottom of the heat exchanger 2, meanwhile, a spiral blade 4 is welded on the surface of the hearth liner 1, the air primarily heated from the bottom of the heat exchanger 2 is forcedly and slowly transferred to the top along the spiral blade 4, the air has enough heating time, is pumped out by a hot air fan 5 and is sent to equipment needing hot air, and the thermal efficiency of the structure can reach 75% -85%.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims (5)

1. The utility model provides an increase of thermal efficiency's furnace structure, includes furnace inner bag (1) and heat exchanger (2), its characterized in that: an air channel (3) is arranged between the bottom of the hearth inner container (1) and the bottom of the heat exchanger (2), and blades (4) are welded on the outer surface of the hearth inner container (1).
2. A thermally efficiency enhancing furnace construction as claimed in claim 1 wherein: the hearth inner container (1) and the heat exchanger (2) are both positioned in the hearth shell (7).
3. A furnace construction for improving the thermal efficiency according to claim 2, characterized in that: the top of the hearth shell (7) is provided with a hot air fan (5), and the hot air fan (5) is located above the hearth inner container (1).
4. A thermally efficiency enhancing furnace construction as claimed in claim 2 wherein: the top of the hearth shell (7) is also provided with a smoke exhaust fan (6), and the smoke exhaust fan (6) is positioned above the heat exchanger (2).
5. A thermally efficiency enhancing furnace construction as claimed in claim 1 wherein: the blades (4) are of a spiral structure.
CN202221721546.2U 2022-07-04 2022-07-04 Hearth structure for improving heat efficiency Active CN218065365U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221721546.2U CN218065365U (en) 2022-07-04 2022-07-04 Hearth structure for improving heat efficiency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221721546.2U CN218065365U (en) 2022-07-04 2022-07-04 Hearth structure for improving heat efficiency

Publications (1)

Publication Number Publication Date
CN218065365U true CN218065365U (en) 2022-12-16

Family

ID=84436318

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221721546.2U Active CN218065365U (en) 2022-07-04 2022-07-04 Hearth structure for improving heat efficiency

Country Status (1)

Country Link
CN (1) CN218065365U (en)

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