CN201476528U - Pit furnace cooling air duct - Google Patents
Pit furnace cooling air duct Download PDFInfo
- Publication number
- CN201476528U CN201476528U CN2009202315852U CN200920231585U CN201476528U CN 201476528 U CN201476528 U CN 201476528U CN 2009202315852 U CN2009202315852 U CN 2009202315852U CN 200920231585 U CN200920231585 U CN 200920231585U CN 201476528 U CN201476528 U CN 201476528U
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- CN
- China
- Prior art keywords
- cooling
- ring
- air
- annular
- air duct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a pit furnace cooling air duct which comprises a furnace body, an electric heating element, a ring-shaped cooling air duct in the furnace body and a cooling fan, wherein the lower portion of the cooling air duct is a ring-shaped guide groove, a ring-shaped cooling main pipe is arranged on the lower portion of the furnace body, and is provided with an air inlet and at least three air outlets, wherein one cooling fan is docked with the air inlet of the ring-shaped cooling main pipe, the air outlets of the ring-shaped cooling main pipe are docked with the ring-shaped guide groove, and the ring-shaped cooling main pipe is provided with 30-50 air outlets which are evenly arranged. Compared with the prior art, the lower portion of the furnace body in the pit furnace cooling air duct is provided with the ring-shaped cooling main pipe to dock with the ring-shaped guide groove on the lower portion of the ring-shaped cooling air duct, and a fan is adopted to supply air for the ring-shaped cooling main pipe, and air enters the cooling air duct through three air outlets on the ring-shaped cooling main pipe, the temperature of the furnace body is more even, and the quality of nitrated elements is consistent.
Description
Technical field:
The utility model relates to a kind of industrial electric furnace, especially a kind of cooling air channel is carried out improved shaft furnace.
Background technology:
In industrial furnace, shaft furnace generally comprises well formula glowing furnace, pit carburizing furnace, well formula nitriding furnace etc.In existing nitriding furnace cooling system, have at least three independently cooling blower be evenly distributed on body of heater around, the annular cooling air channel in body of heater provides the wind that reduces furnace temperature, and nitriding temperature in the burner hearth and atmosphere are regulated.The nitriding furnace cooling structure of this structure needs a plurality of blower fans, and a plurality of blower fan independent operating, makes that the temperature in the cooling chamber is difficult to evenly, quality to the nitriding part produces very big influence, simultaneously, a plurality of blower fans is set on hearth outer wall, cost improves, and occupies bigger space.
Summary of the invention:
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and provides a kind of temperature field even, makes the shaft furnace cooling air channel of the uniform quality up and down of carburizing or nitriding part.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of shaft furnace cooling air channel, comprise annular cooling air channel and cooling blower in body of heater, electrical heating elements, the body of heater, annular cooling air channel bottom is annular wind guide tank, the body of heater bottom also is provided with annular cooling house steward one, annular cooling house steward is provided with an air inlet, is provided with three air outlets at least simultaneously, wherein, a cooling blower docks with annular cooling house steward's air inlet, and annular cooling house steward's air outlet docks with annular wind guide tank.
Annular cooling house steward is provided with 30～50 equally distributed air outlets.
Compared with prior art, the utility model shaft furnace, annular cooling house steward is set in the body of heater bottom, dock with the lower annular wind guide tank of annular cooling air channel, and adopt a blower fan to give air feed in the annular cooling house steward, feed in the cooling air channel by three air outlets on the annular cooling house steward, make stove body temperature more even, the nitrogenize part quality is unanimous between the higher and lower levels.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein: 1, body of heater, 2, annular cooling house steward, 3, air outlet, 4, air inlet, 5, the center blower fan, 6, cooling blower, 7, annular wind guide tank, 8 resistance wires.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated:
As shown in Figure 1, a kind of shaft furnace stove, comprise annular cooling air channel and cooling blower 6 in body of heater 1, electrical heating elements resistance wire 8, the body of heater, annular cooling air channel bottom is annular wind guide tank 7, body of heater 1 bottom also is provided with annular cooling house steward 2 one, annular cooling house steward 2 is provided with an air inlet 4, at least be provided with simultaneously three air outlets 3, wherein, a cooling blower 6 docks with annular cooling house steward's 2 air inlet 4, annular cooling house steward's 2 air outlet 3 docks with annular wind guide tank 7, is provided with 30～50 equally distributed air outlets annular cooling house steward 2.
Claims (2)
1. shaft furnace cooling air channel, comprise annular cooling air channel and cooling blower in body of heater, electrical heating elements, the body of heater, annular cooling air channel bottom is annular wind guide tank, it is characterized in that: the body of heater bottom also is provided with annular cooling house steward one, annular cooling house steward is provided with an air inlet, is provided with three air outlets at least simultaneously, wherein, a cooling blower docks with annular cooling house steward's air inlet, and annular cooling house steward's air outlet docks with annular wind guide tank.
2. shaft furnace cooling air channel according to claim 1 is characterized in that: annular cooling house steward is provided with 30～50 equally distributed air outlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202315852U CN201476528U (en) | 2009-09-01 | 2009-09-01 | Pit furnace cooling air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202315852U CN201476528U (en) | 2009-09-01 | 2009-09-01 | Pit furnace cooling air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201476528U true CN201476528U (en) | 2010-05-19 |
Family
ID=42412775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202315852U Expired - Fee Related CN201476528U (en) | 2009-09-01 | 2009-09-01 | Pit furnace cooling air duct |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201476528U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589835A (en) * | 2012-08-15 | 2014-02-19 | 苏州工业园区杰士通真空技术有限公司 | Fast air cooling system of vacuum gas quenching furnace |
-
2009
- 2009-09-01 CN CN2009202315852U patent/CN201476528U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103589835A (en) * | 2012-08-15 | 2014-02-19 | 苏州工业园区杰士通真空技术有限公司 | Fast air cooling system of vacuum gas quenching furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20140901 |
|
| EXPY | Termination of patent right or utility model |