CN201095642Y - Energy-saving water-saving long life hot blast valve - Google Patents
Energy-saving water-saving long life hot blast valve Download PDFInfo
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- CN201095642Y CN201095642Y CNU2007201426401U CN200720142640U CN201095642Y CN 201095642 Y CN201095642 Y CN 201095642Y CN U2007201426401 U CNU2007201426401 U CN U2007201426401U CN 200720142640 U CN200720142640 U CN 200720142640U CN 201095642 Y CN201095642 Y CN 201095642Y
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- hot blast
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Abstract
The utility model provides an energy-saving and water-saving long service life type hot air valve positioned on a hot air duct of a hot blast furnace system and used for cutting off hot air, and the hot air valve comprises a valve body, a valve plate, a valve cover and a sealing device. The utility model is characterized in that both the valve body and the valve cover change the prior double layer steel plate structure, thermal insulation material layers are added to protect the steel plate; the valve plate changes the prior incense coil type structure, and an N-formed structure is adopted, thereby reinforcing the protection for the thermal insulation material layers. The utility model aims to reduce energy loss, save cooling water, enhance the rigidity of the valve and prolong the service life of the valve. The sealing structure of the valve is optimized and the sealing is reliable and the operation is convenient. The energy-saving and water-saving long service life type hot air valve has the characteristics of water and energy conservation and long service life.
Description
Technical field
The utility model belongs to blast funnace hot blast stove system valve, particularly a kind of energy-saving and water-saving long-life type hot blast valve.
Background technology
Hot blast valve is an imperative equipment in the blast funnace hot blast stove pipeline.In blast furnace ironmaking, all hot blasts that are sent to blast furnace all will pass through hot blast valve.At hotblast stove on air, hot blast valve is opened, and in the Combustion of Hot Air Furnace phase, hot blast valve cuts out, and hotblast stove and hot air duct are kept apart.Valve bears thermal convection, thermal radiation for a long time, temperature up to 1200 ℃～1450 ℃, be one of worst equipment of Working environment in the blast-furnace equipment, the temperature of superelevation makes that valve must could works better by cooling.Special Working environment causes that the valve mechanism volume is big, weight is big, needs to consume a large amount of water coolants, and the layout of cooling water channel directly influences the life-span of valve.Simultaneously, the water quench valve can be taken away a large amount of heats, causes energy dissipation.Therefore how to reduce cooling water inflow, save resource, improve life of valve, for the development of energy conservation, blast furnace system, particularly important.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art, and a kind of energy-saving and water-saving long-life type hot blast valve is provided.
Traditional Hot-blast valve, valve body, valve gap generally all are double-layer structure, and the centre is a water coolant, takes away heat by water coolant, guarantee the works better of Valve Steel structure body, and water coolant certainly will be taken away a large amount of heats like this.According to the utility model, valve adopts the water cooling except trim because of being directly exposed in the hot blast, heat preserving and insulating material protection Valve Steel structure body is all adopted in all the other positions, specifically be that inwall at valve is except refractory materials, increase the thermal insulation material of a floor height thermal resistance between refractory materials and steel structure body, depend merely on water cooling, the serious energy loss that causes before having reduced like this; Simultaneously, because cancelled original sandwich structure, enough spaces are arranged to strengthen the rigidity of valve body, valve gap in the valve design, and softish thermal insulation material between refractory materials and steel structure body, except cutting off inner high temperature, the distortion of all right efficient buffer been provided with internal refractories comes off with the crimp that prevents refractory materials.The rectangular cross section of sealing station annular water channel is adopted in the setting of the cooling water channel of valve body, and the valve vent position has obtained effective cooling on the one hand, and the rigidity of valve body has obtained reinforcement on the other hand, and cooling water inflow reduces greatly.
According to the utility model, the structure of hot air valve plate has also been made bigger change, valve plate is mainly formed by plate core and two water channel assembly weldings, in order to strengthen the effect of refractory materials, the integral thickness of valve plate increases, increase the thermal insulation material of a floor height thermal resistance between plate core and refractory materials, " incense coil formula " cooling water channel before the cancellation, on the plate core, leave the less cooling water channel of section area, the water coolant of valve plate is introduced into the hydrosphere of sealed sides, pass through the non-tight side again, get rid of from water outlet around " N shape " circle in the last slave plate core.Such design advantage is that the texture ratio of valve plate was simple in the past, has avoided strengthening the effect of refractory thermal insulating material because the probability that welding waits other reason to cause valve plate to lose efficacy simultaneously, reduces cooling water inflow, makes energy loss obtain effective control.
In the utility model, also done improvement largely for valve rod sealing device, owing to cancelled the water cooling of valve gap upper sealing device, be exposed at tightness system in the atmosphere as much as possible, because valve rod is a hollow structure, the centre leads to water coolant, can take away the heat of tightness system thus, tightness system is in the atmosphere near free air temperature for a long time, guarantees the safe and reliable of tightness system.Tightness system internal structure aspect, the hard sealing of bottom realizes the part sealing of valve and floating of valve rod, the soft seal on top, whole sealings of realization valve and unsteady, the thread connecting mode between outer gland and watertight chest makes things convenient for the replacing of wadding.
For the utility model, all adopt ANSYS software to carry out finite element analysis, analytical results shows, new design after the improvement, the appearance Controllable Temperature of valve is in 150 ℃, the calorific loss of valve than former traditional structure significantly reduce (in the past hot blast by the time because water-cooled, wind-warm syndrome reduces and is about 8 ℃; Wind-warm syndrome is reduced to be controlled in 2 ℃), in 1/3 before caning be controlled in for the consumption of the cooling water inflow of valve.
The utlity model has energy-conservation, water saving, long-lived characteristics.
Description of drawings
Fig. 1 is this hot blast valve structural front view;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the valve part figure of this hot blast valve;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the plate member figure of this hot blast valve;
Fig. 6 is that sectional view is looked on the left side of Fig. 5;
Fig. 7 is the valve gap component diagram of this hot blast valve;
Fig. 8 is this hot blast valve valve rod sealing device wiring layout.
Embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is described.
Accompanying drawing 1, accompanying drawing 2 have provided the overall structure form of the utility model hot blast valve, and it mainly is made up of valve body (1), valve plate (2), valve gap (3) and valve rod sealing device (4) four parts.
Show as Fig. 3, Fig. 4, the steel structure body of this hot air valve body (1) is a single layer structure, mainly cooling water cavity of being made by forging (5) and foundry goods flange (6) and box hat overcoat (7) assembly welding form, the surface is provided with insulation material layer (9) within it, at the internal surface of insulation material layer (9) refractory masses (8) is set.
Show as Fig. 5, Fig. 6, the steel structure body of this hot air valve plate (2) is mainly formed by plate core (11) and two forging water cavities (12) assembly welding, be provided with insulation material layer (14) at the plate wicking surface, be provided with refractory masses (13) at the outside surface of insulation material layer.
Show that as Fig. 7 the steel structure body of this hot air valve cover (3) is made of the steel part overcoat (15) of individual layer, the surface is provided with insulation material layer (17) within it, at the internal surface of insulation material layer refractory masses (16) is set.
Show that as accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 6 and Fig. 7 the insulation material layer of valve body (1), valve plate (2), valve gap (3) and refractory masses are fixed on its steel structure body by anchor nails (10).
Show that as Fig. 8 the tightness system of this hot blast valve (4) comprises the hard sealing that places the bottom and the soft seal two portions that place top, the hard sealing of its underpart is made up of watertight chest (18) and float ring (19), realizes floating of part sealing and valve rod; The soft seal on top is made up of stuffing box (20), wadding (21) and internal gland (22), realizes whole sealings of valve rod and all floats, and adopts between the outer gland (23) at top and watertight chest (18) to be threaded, and makes things convenient for the replacing of wadding.
Claims (5)
1. energy-saving and water-saving long-life type hot blast valve, it includes valve body (1), valve plate (2), valve gap (3) and the valve rod sealing device of being made up of steel structure body and surperficial refractory masses (4), it is characterized in that: be respectively arranged with insulation material layer (9), (14), (17) between the steel structure body of valve body, valve plate, valve gap and surperficial refractory masses.
2. energy-saving and water-saving long-life type hot blast valve according to claim 1 is characterized in that: the steel structure body of valve body (1) is made of with the annular water chamber (5) of forging and round flange (6) assembly welding of foundry goods the box hat overcoat (7) of individual layer.
3. energy-saving and water-saving long-life type hot blast valve according to claim 1 is characterized in that: the steel structure body of valve plate (2) is made of integrally-built valve plate plate core (11) and two forging annular water chambers (12) assembly welding.
4. energy-saving and water-saving long-life type hot blast valve according to claim 1 is characterized in that: the steel structure body of valve gap (3) is made of the steel part overcoat (15) of individual layer.
5. energy-saving and water-saving long-life type hot blast valve according to claim 1, it is characterized in that: tightness system (4) is made of hard sealing that is arranged at the bottom and the soft seal that is arranged at top, its hard sealing is made up of the float ring (19) of watertight chest (18) and assembling with it, soft seal is made up of the wadding (21) and the internal gland (22) of stuffing box (20) and assembling with it, adopts between the outer gland (23) at top and watertight chest (18) to be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201426401U CN201095642Y (en) | 2007-04-05 | 2007-04-05 | Energy-saving water-saving long life hot blast valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201426401U CN201095642Y (en) | 2007-04-05 | 2007-04-05 | Energy-saving water-saving long life hot blast valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095642Y true CN201095642Y (en) | 2008-08-06 |
Family
ID=39922698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201426401U Expired - Fee Related CN201095642Y (en) | 2007-04-05 | 2007-04-05 | Energy-saving water-saving long life hot blast valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201095642Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912058A (en) * | 2012-10-30 | 2013-02-06 | 中冶东方工程技术有限公司 | Hot-blast valve used in hot-blast furnace system for direct reduced iron vertical furnace |
-
2007
- 2007-04-05 CN CNU2007201426401U patent/CN201095642Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912058A (en) * | 2012-10-30 | 2013-02-06 | 中冶东方工程技术有限公司 | Hot-blast valve used in hot-blast furnace system for direct reduced iron vertical furnace |
| CN102912058B (en) * | 2012-10-30 | 2015-05-27 | 中冶东方工程技术有限公司 | Hot-blast valve used in hot-blast furnace system for direct reduced iron vertical furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090227 Address after: No. 2, Poyang Lake Road, Qinhuangdao economic and Technological Development Zone, Hebei Province, China: 066318 Patentee after: Qinhuangdao Metallurgical Heavy Industry Co., Ltd. Address before: No. 299, Haiyang Road, Hebei, Qinhuangdao Province, China: 066004 Patentee before: Qinhuangdao Metallurgical Machinery Co Ltd |
|
| ASS | Succession or assignment of patent right |
Owner name: QINHUANGDAO QINYE HEAVY INDUSTRY CO., LTD. Free format text: FORMER OWNER: QINHUANGDAO METALLURGICAL MACHINERY CO., LTD. Effective date: 20090227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20150405 |
|
| EXPY | Termination of patent right or utility model |