CN101333573A - Micro-water energy-conserving hot air valve body - Google Patents
Micro-water energy-conserving hot air valve body Download PDFInfo
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- CN101333573A CN101333573A CNA2008101408510A CN200810140851A CN101333573A CN 101333573 A CN101333573 A CN 101333573A CN A2008101408510 A CNA2008101408510 A CN A2008101408510A CN 200810140851 A CN200810140851 A CN 200810140851A CN 101333573 A CN101333573 A CN 101333573A
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Abstract
The invention discloses a valve body of a micro-water energy-saving hot-blast valve, which comprises a body of the valve and a left and a right large flange, the body of the valve and shell bodies of the left and right large flanges adopt a layered refractory liner cover layer, and the cover layer includes a heat-insulating layer, a heat preservation layer, a thermal-protective layer, a high temperature-resisting layer and an energy-saving reflective layer sequentially distributed. The heat-insulating layer adopts siliceous coating materials, the heat preservation layer adopts refractory felts, the thermal-protective layer adopts light casting materials, the high temperature-resisting refractory layer adopts heavy casting materials, and the energy-saving reflective layer adopts aluminum-zirconium high-temperature coating materials. The valve body adopts the more advanced heat-resisting material liner structurally, only a water-cooling pipeline is arranged on a sealing face of the sealed side of the right flange, then the sealing face will not deform under alternating thermal load, and water can be saved more reasonably, compared with the micro-water energy-saving hot-blast valve disclosed in CN1769501, the water consumption of the valve body is also reduced by 50 percent, thereby further meeting the urgent needs of water and energy saving of the current steel enterprises. The valve body reduces the loss of blast temperature, and can increase the blast temperature by 10 to 20DEG C year-on-year, and the valve body can bear rather big thermal shock and thermal fluctuation, and will not be damaged when being started frequently, and the service life of the valve body is extended.
Description
Technical field
The present invention relates to a kind of hot blast valve of blast-furnace hot-air pipe applications, particularly a kind of micro-water energy-conserving hot air valve body.
Background technology
Blast furnace ironmaking is a successive process, in order to keep the continuous operation of blast furnace ironmaking, needs continuously that drum send hot blast in blast furnace, so every blast furnace need be provided with 3～4 hotblast stoves, what several hotblast stoves did not stop is used alternatingly.Hot blast valve is installed on the hot blast manifold between blast-furnace hot-air main pipe line and the hotblast stove, be used for hot blast main road and hotblast stove being separated in the Combustion of Hot Air Furnace phase, so hot blast valve is the hotblast stove switching device, belong to the normally-open normally-close valve according to the principle of work hot blast valve of hot blast valve.General hot blast valve was opened air-supply after 1 hour, need close 2 hours, treated that hotblast stove burns once more, accumulation of heat.When hot blast valve cut out, hot blast valve bore very big thermal load towards the side that hot blast is responsible for.In other words, the thermal load of valve both sides is unequal.For a long time, domestic hot blast valve adopts the soft steel manufacturing always, water-cooled structure, and cooling water consumption is big.CN1769501 discloses a kind of energy-saving hot blast valve using little water, and it is obvious to save water coolant.But the valve body of this patent disclosure is still waited to improve, the one, adopt three layers of refractory liner tectum, and insulation, effect of heat insulation is poor; The 2nd, the big flange in valve body both sides is all arranged cooling water channel, and the both sides cooling intensity is the same, still consumes a certain amount of water coolant.According to actual working conditions, the valve seal side flange is provided with trim, and easy deformation under the alternation thermal load need be taked cooling provision emphatically.And opposite side still can be saved cooling water.
Summary of the invention
In order to solve the technical problem that above-mentioned micro-water energy-conserving hot air valve body exists, make valve sealing face indeformable under the alternation thermal load, intend improving the valve body structure design, structurally adopt more advanced anti-high hot material lining, and sealed sides taked cooling provision emphatically, more reasonable water saving provides a kind of hot blast valve water cooled valve body for this reason.
The present invention solves the technical scheme that the prior art problem adopted:
Micro-water energy-conserving hot air valve body, comprise valve body and left and right flanges, adopt refractory liner tectum by different level in described valve body and the left and right flanges housing, this tectum comprises thermal insulation layer, thermal insulation layer, thermofin, high temperature resistance layer and the energy-conservation reflecting layer that distributes successively, thermal insulation layer adopts siliceous coating, and thermal insulation layer adopts refractory felt, and thermofin adopts lightening casting material, the high temperature resistance flame retardant coating adopts the heavy mould material, and aluminium zirconium matter high-temperature coatings is adopted in energy-conservation reflecting layer; Left side flange is the non-tight side flange, and right flange is the sealed sides flange, arranges water cooled pipeline at the trim of right flange seal side.
The water cooled pipeline that the trim of described right flange seal side is arranged can adopt pipe laying foundry goods or steel plate machining water channel spare.
Described valve body and left and right flanges housing medial surface perisporium are welded with anchor nails.
This micro-water energy-conserving hot air valve body structurally adopts more advanced anti-high hot material lining, only arrange water cooled pipeline at the trim of right flange seal side, make trim indeformable under the alternation thermal load, and can more reasonable water saving, compare with the disclosed energy-saving hot blast valve using little water of CN1769501, water consumption has reduced 50% again, more can adapt to the water saving of present steel enterprise, energy-conservation pressing for.And reduced the wind-warm syndrome loss, can improve 10～20 ℃ of wind-warm syndrome on year-on-year basis, can bear big thermal shocking and heat fluctuation, frequent starting is unlikely impaired, and prolong work-ing life.
Description of drawings
Fig. 1 is a front view of the present invention
Fig. 2 is a right flange arrangement synoptic diagram of the present invention
Embodiment
Introduce embodiments of the invention below in conjunction with accompanying drawing.
As shown in the figure: this micro-water energy-conserving hot air valve body comprises valve body 1 and left and right flanges 2,3, adopt refractory liner tectum 4 by different level in valve body 1 and left and right flanges 2,3 housings, this tectum 4 comprises thermal insulation layer, thermal insulation layer, thermofin, high temperature resistance layer and the energy-conservation reflecting layer that distributes successively, thermal insulation layer adopts siliceous coating, thermal insulation layer adopts refractory felt, thermofin adopts lightening casting material, and the high temperature resistance flame retardant coating adopts the heavy mould material, and aluminium zirconium matter high-temperature coatings is adopted in energy-conservation reflecting layer.Be welded with anchor nails 5 at valve body 1 and left and right flanges housing 2,3 medial surface perisporiums.
This hot air valve body left side flange 2 is the non-tight side flange, and right flange 3 is the sealed sides flange, only at right flange 3 trims of this side cooling water pipeline 6 is set, and can keep this side seal face indeformable, reaches water-saving purpose.The cooling water pipeline 6 of the trim setting of right flange 3 sealed sides can adopt pipe laying foundry goods or steel plate machining water channel spare.
Claims (3)
1. the micro-water energy-conserving hot air valve body used of a hot air duct, comprise a valve body and a left side, right flange, left side flange is the non-tight side flange, right flange is the sealed sides flange, it is characterized in that: a described valve body and a left side, adopt refractory liner tectum by different level in the right flange shell, this tectum comprises the thermal insulation layer that distributes successively, thermal insulation layer, thermofin, high temperature resistance layer and energy-conservation reflecting layer, thermal insulation layer adopts siliceous coating, thermal insulation layer adopts refractory felt, thermofin adopts lightening casting material, the high temperature resistance flame retardant coating adopts the heavy mould material, and aluminium zirconium matter high-temperature coatings is adopted in energy-conservation reflecting layer; The trim of right flange seal side is arranged water cooled pipeline.
2. energy-saving hot blast valve using little water water-cooled valve body according to claim 1 is characterized in that: the water cooled pipeline that the trim of described right flange seal side is arranged adopts pipe laying foundry goods or steel plate machining water channel spare.
3. micro-water energy-conserving hot air valve body according to claim 1 is characterized in that: described valve body and left and right flanges housing medial surface perisporium are welded with anchor nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101408510A CN101333573A (en) | 2008-07-30 | 2008-07-30 | Micro-water energy-conserving hot air valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101408510A CN101333573A (en) | 2008-07-30 | 2008-07-30 | Micro-water energy-conserving hot air valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101333573A true CN101333573A (en) | 2008-12-31 |
Family
ID=40196453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101408510A Pending CN101333573A (en) | 2008-07-30 | 2008-07-30 | Micro-water energy-conserving hot air valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101333573A (en) |
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2008
- 2008-07-30 CN CNA2008101408510A patent/CN101333573A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081231 |