CN217297926U - Heat energy recovery device for annealing furnace - Google Patents
Heat energy recovery device for annealing furnace Download PDFInfo
- Publication number
- CN217297926U CN217297926U CN202220648341.XU CN202220648341U CN217297926U CN 217297926 U CN217297926 U CN 217297926U CN 202220648341 U CN202220648341 U CN 202220648341U CN 217297926 U CN217297926 U CN 217297926U
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- China
- Prior art keywords
- annealing furnace
- casing
- heat energy
- secondary heater
- pipeline
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- 238000000137 annealing Methods 0.000 title claims abstract description 62
- 238000011084 recovery Methods 0.000 title claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 238000007751 thermal spraying Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Furnace Details (AREA)
Abstract
The utility model belongs to the technical field of annealing furnace heat energy utilization, and discloses a heat energy recovery device for an annealing furnace, which comprises an annealing furnace main body, wherein a circulating pipeline is connected above the annealing furnace main body, an upper shell is arranged at one end of the circulating pipeline far away from the annealing furnace main body, a lower shell is arranged at the bottom of the upper shell, a secondary heater is arranged, an output end of the secondary heater is connected with an output pipeline, an input pipeline is connected with an input end of the secondary heater, one end of the output pipeline far away from the secondary heater is connected with the annealing furnace, after the heat energy in the annealing furnace circulates into the shell along the pipeline, the heat energy is mixed with external normal temperature gas and high temperature gas and is blown into the secondary heater under the action of an air blower, and the heat flow with the same temperature as the internal annealing furnace is formed after the secondary heater is heated, and enters the furnace again to participate in the heat treatment of workpieces, the influence of temperature difference on the heat treatment efficiency of the workpiece is avoided.
Description
Technical Field
The utility model belongs to the technical field of annealing stove heat utilization, concretely relates to heat recovery unit for annealing stove.
Background
When some metal workpieces are processed, the workpieces are sometimes heated to a certain temperature and kept for a sufficient time, and then cooled at a proper speed so as to weaken the hardness of the workpieces and eliminate stress participation and the like, the process is called annealing, while the annealing process is commonly carried out by using an annealing furnace, the high temperature of the annealing furnace is used for completing the heat treatment of the co-construction, and when the annealing furnace is used, a large amount of heat energy can be directly discharged after being used, so that the heat energy is wasted.
Present annealing stove heat recovery equipment is when using, and the majority is only simple one circulation of setting up, and the gas that will cool down is gone into the annealing stove again, though possesses certain utilization effect, but can let produce certain temperature difference in the annealing stove, has reduced the heat treatment efficiency of work piece, and the filtration equipment clearance difficulty that sets up in the circulating line, piles up down very big influence the utilization efficiency of heat energy for a long time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat recovery unit for annealing furnace to solve the problem that current annealing furnace heat recovery equipment can influence the thermal treatment efficiency of work piece and the filtration equipment among the circulating line is difficult to the clearance.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a heat recovery unit for annealing furnace, includes annealing stove main part, the top of annealing stove main part is connected with the circulating line, and the circulating line keeps away from the one end of annealing stove main part and installs the casing, go up the bottom of casing and install down the casing, and one side of casing is connected with the input pipeline down, the input pipeline keeps away from down the one end of casing and installs the secondary heater, and the output of secondary heater is connected with output pipeline.
Preferably, the two sides of the annealing furnace main body are provided with primary heaters, and the upper parts of the two primary heaters are connected with thermal spraying pipelines.
Preferably, the side of the upper surface wall of the annealing furnace main body, which is located on the circulating pipeline, is connected with an exhaust pipeline, and a first valve is installed at the end of the exhaust pipeline.
Preferably, the inside of circulating line installs the second valve, and the surface wall of circulating line installs the heat preservation, go up the internally mounted of casing and have the filter layer.
Preferably, the end, contacting each other, of the upper shell and the lower shell is provided with an edge fixing ring, and a fixing part is arranged between the two edge fixing rings.
Preferably, an activated carbon adsorption layer is installed inside the lower shell, and a blower is arranged on one side of the lower shell.
Compared with the prior art, the utility model, following beneficial effect has:
(1) the utility model discloses the secondary heater has been set up, and the output of secondary heater has connected the output pipeline, the input pipeline has been connected to the input of secondary heater, the output pipeline is kept away from the one end and the annealing stove of secondary heater and is connected, heat energy in the annealing stove is gone into inside back of casing along the pipe-line circulation, under the effect of air-blower, mix with outside normal atmospheric temperature gas mix and be blown in the secondary heater with the high-temperature gas, form the thermal current with the same temperature in the annealing stove after the secondary heater heating, the formation difference in temperature influence work piece thermal treatment efficiency has been avoided.
(2) The utility model discloses set up last casing and lower casing, and the position of going up casing and casing contact down has all set up the solid fixed ring in edge, has set up the mounting between two solid fixed rings in edge, during the use, will go up the casing through the mounting and connect down between the casing, under long-time the use, the inside filter assembly of casing piles up impurity excessive, only needs to dismantle the mounting this moment and can be with going up the casing and separating down between the casing to this clearance inside filter assembly.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is an external view of the present invention;
FIG. 3 is a cross-sectional view of the circulation pipe of the present invention;
in the figure: 1. a primary heater; 2. a thermal spray conduit; 3. an annealing furnace main body; 4. a first valve; 5. an exhaust duct; 6. a circulating pipeline; 7. a heat-insulating layer; 8. a second valve; 9. an output pipe; 10. a filter layer; 11. an input pipe; 12. an upper housing; 13. an edge fixing ring; 14. a fixing member; 15. an activated carbon adsorption layer; 16. a blower; 17. a lower housing; 18. a secondary heater.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: a heat energy recovery device for an annealing furnace comprises an annealing furnace main body 3, a circulating pipeline 6 is connected above the annealing furnace main body 3, an upper shell 12 is installed at one end, far away from the annealing furnace main body 3, of the circulating pipeline 6, a lower shell 17 is installed at the bottom of the upper shell 12, an input pipeline 11 is connected to one side of the lower shell 17, a secondary heater 18 is installed at one end, far away from the lower shell 17, of the input pipeline 11, an output pipeline 9 is connected to the output end of the secondary heater 18, the heat flow passing through the circulating pipeline 6 still has high temperature, the mixed air flow enters the secondary heater 18 together with the air flow blown by an air blower 16, the mixed air flow has high temperature, the secondary heater 18 does not need to heat the air flow from the normal temperature, one end, far away from the secondary heater 18, of the output pipeline 9 extends into the annealing furnace main body 3, the air flow heated by the secondary heater 18 enters the annealing furnace main body 3 again, the high temperature of the output airflow is the same as the temperature in the furnace, and the heat treatment of the workpiece is not influenced.
Further, the both sides of annealing stove main part 3 all are provided with primary heater 1, and the top of two primary heaters 1 all is connected with heating power injection pipeline 2, and the output of heating power injection pipeline 2 is located the inside of annealing stove main part 3, spouts the inside of annealing stove main part 3 with the air current after primary heater 1 heats.
Furthermore, the upper surface wall of the annealing furnace main body 3 is connected with an exhaust pipeline 5 at the side of the circulating pipeline 6, and the end of the exhaust pipeline 5 is provided with a first valve 4, when the heat energy recovery system is not used, the second valve 8 is closed, the first valve 4 is opened, the heat energy caused by the annealing furnace main body 3 can be discharged through the exhaust pipeline 5, and a boiler or other equipment needing heat can be arranged at the output end of the exhaust pipeline 5.
Specifically, the internally mounted of circulating line 6 has second valve 8, and the heat preservation 7 is installed to the table wall of circulating line 6, and the internally mounted of going up casing 12 has filter layer 10, and the work piece probably produces some showy impurity or harmful gas in high temperature, purifies exhaust hot gas behind filter layer 10 and active carbon adsorption layer 15, avoids inside impurity reentrant furnace body.
It is worth to be noted that the edge fixing rings 13 are respectively disposed at the ends of the upper casing 12 and the lower casing 17, which are in contact with each other, and the fixing member 14 is disposed between the two edge fixing rings 13, the upper casing 12 and the lower casing 17 are fixedly connected through the fixing member 14, and the fixing member 14 may adopt a fixing structure of a nut and a bolt.
Further, the inside of lower casing 17 installs active carbon adsorption layer 15, and one side of lower casing 17 is provided with air-blower 16, and air-blower 16 mends the wind in real time in order to increase the inside amount of wind of casing, and the circulation speed of circulation system has been accelerated simultaneously, has reduced thermal loss.
The utility model discloses a theory of operation and use flow: when the utility model is used, a workpiece to be heated is placed in the annealing furnace main body 3, heat energy is generated by the primary heater 1 and is input into the annealing furnace main body 3 by virtue of the heat spraying pipeline 2, the heat energy is discharged from the circulating pipeline 6 after passing through the annealing furnace main body 3, the heat insulation layer 7 is used for preserving heat of the residual heat in the moving process, the diffusion of the heat is reduced, after the heat enters the upper shell 12, the filter layer 10 in the heat insulation layer filters impurities floating in the heat flow and then enters the lower shell 17, harmful substances are adsorbed by the activated carbon adsorption layer 15 in the lower shell 17, normal temperature air flow blown by the external air blower 16 of the lower shell 17 is mixed with circulated high temperature air flow and enters the secondary heater 18 through the input pipeline 11, and is heated by the secondary heater 18 and then is guided into the annealing furnace main body 3 from the output pipeline 9, the heat discharged from the annealing furnace main body 3 is utilized, the heat is heated twice and the temperature in the annealing furnace main body 3 is the same, the heat treatment of the workpiece cannot be influenced by the temperature difference, and after the annealing furnace main body is used for a long time, the fixing piece 14 is detached, the upper shell 12 and the lower shell 17 are separated, so that the filter layer 10 and the activated carbon adsorption layer 15 can be easily taken out for cleaning.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A heat energy recovery device for an annealing furnace comprises an annealing furnace main body (3), and is characterized in that: the top of annealing stove main part (3) is connected with circulating line (6), and circulating line (6) keep away from the one end of annealing stove main part (3) and install casing (12), casing (17) down are installed to the bottom of going up casing (12), and one side of casing (17) is connected with input pipeline (11) down, input pipeline (11) keep away from down the one end of casing (17) and install secondary heater (18), and the output of secondary heater (18) is connected with output pipeline (9).
2. The heat energy recovery device for the annealing furnace according to claim 1, wherein: the annealing furnace is characterized in that primary heaters (1) are arranged on two sides of the annealing furnace main body (3), and thermal spraying pipelines (2) are connected above the primary heaters (1).
3. The heat energy recovery device for the annealing furnace according to claim 2, wherein: the side department that the upper surface wall of annealing stove main part (3) is located circulating line (6) is connected with exhaust duct (5), and first valve (4) are installed to the tip of exhaust duct (5).
4. The heat energy recovery device for the annealing furnace according to claim 3, wherein: the internally mounted of circulating line (6) has second valve (8), and the surface wall of circulating line (6) installs heat preservation (7), the internally mounted of going up casing (12) has filter layer (10).
5. The heat energy recovery device for the annealing furnace according to claim 4, wherein: go up casing (12) and casing (17) one end of mutual contact all is provided with the solid fixed ring in edge (13) down, and is provided with between two solid fixed ring in edge (13) mounting (14).
6. The heat energy recovery device for the annealing furnace according to claim 5, wherein: the inside of lower casing (17) is installed active carbon adsorption layer (15), and one side of lower casing (17) is provided with air-blower (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220648341.XU CN217297926U (en) | 2022-03-24 | 2022-03-24 | Heat energy recovery device for annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220648341.XU CN217297926U (en) | 2022-03-24 | 2022-03-24 | Heat energy recovery device for annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217297926U true CN217297926U (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220648341.XU Expired - Fee Related CN217297926U (en) | 2022-03-24 | 2022-03-24 | Heat energy recovery device for annealing furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN217297926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117025921A (en) * | 2023-08-15 | 2023-11-10 | 杭州金山仪表阀业有限公司 | Internal and external double-layer annealing device for valve body thermal aging treatment |
-
2022
- 2022-03-24 CN CN202220648341.XU patent/CN217297926U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117025921A (en) * | 2023-08-15 | 2023-11-10 | 杭州金山仪表阀业有限公司 | Internal and external double-layer annealing device for valve body thermal aging treatment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |