CN201229119Y - Isolation device for cam of industrial furnace - Google Patents
Isolation device for cam of industrial furnace Download PDFInfo
- Publication number
- CN201229119Y CN201229119Y CNU2008200600956U CN200820060095U CN201229119Y CN 201229119 Y CN201229119 Y CN 201229119Y CN U2008200600956 U CNU2008200600956 U CN U2008200600956U CN 200820060095 U CN200820060095 U CN 200820060095U CN 201229119 Y CN201229119 Y CN 201229119Y
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- flange
- camera
- furnace
- spacer
- flanges
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Abstract
The utility model discloses an isolating device of an industrial furnace camera, which comprises a furnace shell flange which is mounted on a furnace, a camera flange which is mounted on a camera, and further comprises three flanges which are fixed and mounted between the camera flange and the furnace shell flange in turn, and the three flanges form a gas channel along a ring-shaped combing portion, the gas channel is provided with a spraying joint on the inner edges of the flanges, and at least an air inlet is arranged on the outer edge of one of the flanges. The isolating device can effectively prevent heat resisting glass from being polluted, which keeps the heat resisting glass to be transparent, thereby leading the camera of an industrial television to shoot actual condition in a furnace more clearly, and the isolating device is convenient for operators to normally operate. Gate valves can be arranged on the flanges, which are convenient for clearly changing heat resisting glass on the camera in the process of producing, and have stronger maintainability.
Description
Technical field
The utility model relates to the servicing unit of industrial furnace, relates in particular to a kind of spacer assembly of industrial furnace camera.
Background technology
On some industrial furnaces, need to install camera, such as even moving back on the body of heater of the annealing furnace of unit and the annealing furnace of cold rolling hot dip unit (containing the stove nose), purpose is that operating personnel can monitor the inner band of stove steel ruuning situation by the industrial television picture in operating room.Because camera can not tolerate the high-temperature atmosphere in the stove, therefore traditional camera installation method as shown in Figure 1, wherein 1, itv camera head 2, mounting flange 3, outside furnace shell 4, inner lining of furnace plate 5, refractory material 6, high temperature resistant pad 7, pyroceram 8, cool nitrogen.
There is following problem in existing this structure: because heat resistant glass 7 directly contacts with furnace atmosphere on the camera, glass surface is easy to contaminated.At high temperature precipitate in the atmosphere as the carbon in the band steel in the annealing furnace, can be attached on and cause the glass blackout on the heat resistant glass.At the galvanizing unit, also have the composition of zinc in the atmosphere, especially in stove nose place atmosphere, also contain a large amount of zinc grays, like this heat resistant glass surface will soon stick white zinc mist and become opaque.When heat resistant glass becomes when opaque, industrial television just can't more clearly be observed the situation in the stove, and operating personnel's normal running is brought very big influence.
Summary of the invention
The purpose of this utility model provides a kind of atmosphere spacer assembly of industrial furnace camera, can prevent effectively that heat resistant glass from being polluted, keep it transparent, thereby make the camera of industrial television can more clearly take actual conditions in the stove, handled easily personnel's normal running.A gate valve can be set on the flange, be convenient to aborning the heat resistant glass on the camera be cleared up replacing, have stronger maintainability.
Technical conceive of the present utility model: this device has been provided with the nitrogen injection hole, this injection hole ringwise, circumferencial direction can be jetted uniformly, form a kind of gas curtain in the front of heat resistant glass, cut off contacting of furnace atmosphere and heat resistant glass, simultaneously heat resistant glass is also cooled off, prevent that heat resistant glass (stove inboard) from directly contacting with atmosphere and the pollution that causes.
According to the actual condition needs, can also select whether will install on the flange gate valve and be convenient to timely cleaning glass simultaneously.Because the stove nose of galvanizing unit, even there is nitrogen to jet ringwise, but owing in the atmosphere a large amount of zinc grays are arranged, light transmittance will descend in general about one month, and the maintenance time of stove is long, generally at 4～5 months once.If when also being less than maintenance time, pollution has taken place glass, the camera of industrial television also can't photograph picture clearly.Under these circumstances, can closing gate valve, furnace atmosphere and glass are cut off, remove camera, clean the top heat resistant glass of camera fast.
The technical solution of the utility model: a kind of spacer assembly of industrial furnace camera, comprise a furnace shell flange, be installed in the stove side; One camera flange is installed in the camera side, also comprises: three flanges are fixedly mounted between camera flange and the furnace shell flange successively; Three flanges form a gas passage along annular cooperation place, and this gas passage is provided with the spray seam on the flange inner edge, have at least one air inlet on the flange outer rim therein.
Preferably, described three flanges are a forward flange, a spacer flanger and a rear flange; Forward flange is offered a groove along annular, goes back symmetry on the forward flange and has two air inlets, and two air inlets are communicated with groove; Spacer flanger is evenly offered a plurality of through holes along annular; Rear flange is offered a groove along annular;
The groove of the groove of forward flange, the through hole of spacer flanger and rear flange matches to be communicated with and forms described gas passage, and described spray seam is positioned at the junction of forward flange and spacer flanger, spacer flanger and rear flange.
Preferably, the spray of described forward flange and spacer flanger seam, the A/F 0.6～1.2mm of its import department, the A/F 6～7mm in exit; The spray seam of spacer flanger and rear flange, the A/F 0.6～1.2mm of its import department, the A/F 2～3mm in exit; Vertical length 12～the 15mm of spray seam.
Preferably, the central through hole diameter 200～350mm of described forward flange, spacer flanger and rear flange.
Preferably, also comprise a gate valve, be fixedly mounted between furnace shell flange and the rear flange.
Preferably, also comprise a retainer ring, be located between camera flange and the forward flange that retainer ring is fixedlyed connected with the camera flange by bolt.
Preferably, described furnace shell flange, forward flange, spacer flanger, rear flange and retainer ring are connected by a bolting.
The utility model makes it compared with prior art owing to adopted above technical scheme, and have the following advantages and good effect: it is simple in structure, easy for installation, and the gas curtain that forms by nitrogen injection can effectively stop contacting of furnace atmosphere and heat resistant glass.Keep the cleaning of heat resistant glass, thereby make camera can clearly take situation in the stove, handled easily personnel's normal running.When needs cleanings camera, but closing gate valve camera is pulled down, be convenient to attendant's cleaning.
Description of drawings
Fig. 1 is the camera and the spacer assembly schematic diagram of prior art.
Fig. 2 is camera of the present utility model and atmosphere spacer assembly generalized section.
Fig. 3 is a forward flange schematic diagram of the present utility model.
Fig. 4 be Fig. 3 along C-C to cutaway view.
Fig. 5 is a spacer flanger schematic diagram of the present utility model.
Fig. 6 be Fig. 5 along D-D to cutaway view.
Fig. 7 is a rear flange schematic diagram of the present utility model.
Fig. 8 be Fig. 7 along E-E to cutaway view.
Fig. 9 is a spray seam of the present utility model place enlarged diagram.
Among Fig. 2-Fig. 9,1 camera flange, 2 air inlets, 3 gate valves, 4 stay bolts, 5 rear flanges, 6 spacer flangers, 7 forward flanges, 8 retainer rings, 9 furnace shell flanges, 10 spray seams, 11 bolts.
The specific embodiment
As shown in Figure 2, A is the stove side, and B is the camera side.Present embodiment has increased a flange piece group, and it comprises a forward flange 7, a spacer flanger 6 and a rear flange 5, is fixedly mounted on successively between prior camera flange 1 and the furnace shell flange 9.
As Fig. 3, shown in 4, forward flange 7 is offered a groove along annular, goes back symmetry on it and has two nitrogen air inlets 2, and air inlet 2 is communicated with groove.
As Fig. 5, shown in 6, spacer flanger 6 is evenly offered a plurality of through holes along annular.
As Fig. 7, shown in 8, rear flange 5 is offered a groove along annular.
As Fig. 2, shown in 9, the connection that matches of the through hole of the groove of forward flange 7, spacer flanger 6 and the groove of rear flange 5 forms an admission line.And forward flange 7 respectively forms a spray seam 10 with spacer flanger 6, spacer flanger 6 with the place of connection of rear flange 5.Nitrogen enters flange inside along the formed admission line of ring-shaped groove after entering from air inlet 2, ejects by spray seam 10 at last.Its even winding-up along the circumferential direction forms a kind of gas curtain in the front of heat resistant glass, has cut off contacting of furnace atmosphere and heat resistant glass, simultaneously heat resistant glass is also cooled off, and prevents that heat resistant glass (stove inboard) from directly contacting with atmosphere and the pollution that causes.The nitrogen of winding-up is identical with the gas pressure of furnace atmosphere, and minimum is 30KPA.
As shown in Figure 9, present embodiment to the opening degree requirement of middle flange 6 both sides spray seam 10 is: forward flange 7 stitches 10, scope 0.6～1.2mm of the A/F GAP2 of its import department, scope 6～7mm of the A/F D2 in exit with the spray of spacer flanger 6.Spacer flanger 6 stitches 10, scope 0.6～1.2mm of the A/F GAP1 of its import department, scope 2～3mm of the A/F D1 in exit with the spray of rear flange 5; Scope 12～15mm of the vertical length L of spray seam 10.
And the central through hole diameter range 200～350mm of forward flange 7, spacer flanger 6 and rear flange 5.
As shown in Figure 2, also comprise a gate valve 3, be fixedly mounted between furnace shell flange 9 and the rear flange 5.Gate valve 3 is a selectable unit, if when operating mode often badly needs the cleaning heat resistant glass, gate valve 3 can be fixed on the flange group together.When gate valve 3 is closed, be about to camera and furnace atmosphere and cut off, can remove camera and carry out the off-line cleaning.Gate valve 3 is existing mature technology, selects Soviet Union's valve Da Er knife-shape gate valve (SUFADA Knife Gate Valve) in the present embodiment for use.
One retainer ring 8 is located between camera flange 1 and the forward flange 7, and retainer ring 8 is fixedlyed connected with camera flange 1 by bolt 11.Furnace shell flange 9, forward flange 7, spacer flanger 6, rear flange 5 and retainer ring 8 are fixedlyed connected by a stay bolt 4.
Be noted that above enumerate only for a specific embodiment of the present utility model, obviously the utility model is not limited to above embodiment, and many similar variations are arranged thereupon.If those skilled in the art all should belong to protection domain of the present utility model from all distortion that the disclosed content of the utility model directly derives or associates.
Claims (7)
1. the spacer assembly of an industrial furnace camera comprises a furnace shell flange (9), is installed in the stove side; One camera flange (1) is installed in the camera side, it is characterized in that also comprising: three flanges are fixedly mounted between camera flange (1) and the furnace shell flange (9) successively; Three flanges form a gas passage along annular cooperation place, and this gas passage is provided with spray seam (10) on the flange inner edge, have at least one air inlet (2) on the flange outer rim therein.
2. the spacer assembly of industrial furnace camera as claimed in claim 1 is characterized in that: described three flanges are a forward flange (7), a spacer flanger (6) and a rear flange (5); Forward flange (7) is offered a groove along annular, and forward flange (7) is upward gone back symmetry and had two air inlets (2), and two air inlets (2) are communicated with groove; Spacer flanger (6) is evenly offered a plurality of through holes along annular; Rear flange (5) is offered a groove along annular; The groove of the through hole of the groove of forward flange (7), spacer flanger (6) and rear flange (5) matches to be communicated with and forms described gas passage, and described spray seam (10) is positioned at the junction of forward flange (7) and spacer flanger (6), spacer flanger (6) and rear flange (5).
3. the spacer assembly of industrial furnace camera as claimed in claim 2 is characterized in that: described forward flange (7) stitches (10), the A/F 0.6～1.2mm of its import department, the A/F 6～7mm in exit with the spray of spacer flanger (6); Spacer flanger (6) stitches (10), the A/F 0.6～1.2mm of its import department, the A/F 2～3mm in exit with the spray of rear flange (5); Vertical length 12～the 15mm of spray seam (10).
4. the spacer assembly of industrial furnace camera as claimed in claim 3 is characterized in that: the central through hole diameter 200～350mm of described forward flange (7), spacer flanger (6) and rear flange (5).
5. as any described atmosphere spacer assembly that is used for the annealing furnace camera of claim 2-4, it is characterized in that: also comprise a gate valve (3), be fixedly mounted between furnace shell flange (9) and the rear flange (5).
6. the spacer assembly of industrial furnace camera as claimed in claim 5 is characterized in that also comprising: a retainer ring (8), be located between camera flange (1) and the forward flange (7), and retainer ring (8) is fixedlyed connected with camera flange (1) by bolt (11).
7. the spacer assembly of industrial furnace camera as claimed in claim 5 is characterized in that: described furnace shell flange (9), forward flange (7), spacer flanger (6), rear flange (5) and retainer ring (8) are fixedlyed connected by a bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200600956U CN201229119Y (en) | 2008-06-23 | 2008-06-23 | Isolation device for cam of industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200600956U CN201229119Y (en) | 2008-06-23 | 2008-06-23 | Isolation device for cam of industrial furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229119Y true CN201229119Y (en) | 2009-04-29 |
Family
ID=40634061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200600956U Expired - Lifetime CN201229119Y (en) | 2008-06-23 | 2008-06-23 | Isolation device for cam of industrial furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229119Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873058A (en) * | 2012-08-28 | 2013-01-16 | 贵州建新南海科技股份有限公司 | Cleaning device for observation lens of sapphire single crystal furnace temperature measurer |
| CN105627774A (en) * | 2016-04-01 | 2016-06-01 | 四川省明信投资有限公司 | Sight glass |
-
2008
- 2008-06-23 CN CNU2008200600956U patent/CN201229119Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873058A (en) * | 2012-08-28 | 2013-01-16 | 贵州建新南海科技股份有限公司 | Cleaning device for observation lens of sapphire single crystal furnace temperature measurer |
| CN105627774A (en) * | 2016-04-01 | 2016-06-01 | 四川省明信投资有限公司 | Sight glass |
| CN105627774B (en) * | 2016-04-01 | 2018-08-10 | 四川省明信能源集团有限公司 | Sight glass |
| CN109059571A (en) * | 2016-04-01 | 2018-12-21 | 四川省雷波明信化工有限公司 | A kind of cooling structure and cool-down method of sight glass |
| CN109059571B (en) * | 2016-04-01 | 2020-09-04 | 雷波明信实业发展有限公司 | Cooling structure and cooling method of peep hole |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090429 |
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| CX01 | Expiry of patent term |