CN102392103A - Steam releasing method for RH vacuum pump system steam dome - Google Patents
Steam releasing method for RH vacuum pump system steam dome Download PDFInfo
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- CN102392103A CN102392103A CN2011103200877A CN201110320087A CN102392103A CN 102392103 A CN102392103 A CN 102392103A CN 2011103200877 A CN2011103200877 A CN 2011103200877A CN 201110320087 A CN201110320087 A CN 201110320087A CN 102392103 A CN102392103 A CN 102392103A
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Abstract
The invention provides a steam releasing method for an RH vacuum pump system steam dome. The method is characterized in that the releasing pipe of a steam dome is connected to the lower part of a condenser. When steam is released, the released steam is introduced into the condenser. The condenser is a third-stage condenser (C3 condenser) which is arranged on a platform near the steam dome. The C3 condenser is sealed and is communicated with condensate water. The upper part of the C3 condenser is provided with an upper sprayer; the middle of the C3 condenser is provided with a middle sprayer; and when released steam airflow is introduced into the C3 condenser, the steam airflow carries out heat exchange with the condensate water sprayed from the middle sprayer and the upper sprayer of the C3 condenser to be condensed into water.
Description
Technical field
The present invention relates to a kind of steam and diffuse method, more particularly, the present invention relates to a kind of through steam being introduced C3 condensing surface (third stage condensing surface) thus reach and reduce noise and the safe and harmless RH stove vacuum pump system steam pockets steam that diffuses diffuses method.
Background technology
The application of vacuum technique in steel-making originates in nineteen fifty-two; The slag phenomenon often appearred emitting in people in casting process when producing the silicon steel of silicon content about 2% at that time; Through various tests, find that finally hydrogen and atmosphere in the molten steel is to produce to emit slag to pour into a mould or rolling back produces the major cause of waste product, various thereupon SECONDARY REFINING IN A VACUUM CHAMBER begin appearance; Like vacuum-casting method, ladle drip degassing method, ladle degassing method etc.; Thereby started the appearance of plant-scale molten steel vacuum processing method, particularly vapor jet pump, quickened the development of vacuum steel-smelting technology especially.RH refining full name is a RH vacuum circulation degassing purifying method, is invented by the fritz in nineteen fifty-nine, and wherein RH is that Germany adopted first letter of two producers of RH refining techniques at that time.Begin appearance the seventies along with the sequence casting workshop, thus RH because adopt molten steel the technology of vacuum tank circulation reach the treatment time short, efficient is high, can be adopted in a large number by the converter operation with the advantage of revolving furnace continuous casting coupling.
The RH system device is a kind of steel secondary refining tooling that is used for production high-quality steel.Whole molten steel metallurgical reaction is in block has the vacuum tank of refractory lining, to carry out.The bottom of vacuum tank is the soaking tub of two band refractory linings, and the hot bending pipe is equipped with on top.Pumped gas by the hot bending pipe through gas cooler outside vacuum pump system is discharged to factory building.
The RH stove vacuum pump system steam pockets steam method of diffusing that generally adopts is both at home and abroad at present all directly diffused in the atmosphere in factory building through the incidental bleeder of drum; Exist the noise decibel higher when diffusing; The phenomenon that time length is long partially, not comparatively special cost-effective technological method.
Summary of the invention
The object of the present invention is to provide a kind of through steam being introduced C3 condensing surface (third stage condensing surface) thus reach and reduce noise and the safe and harmless RH stove vacuum pump system steam pockets steam that diffuses diffuses method.
According to an aspect of the present invention, provide a kind of RH stove vacuum pump system steam pockets steam to diffuse method, said method is connected to condenser through the bleeder with steam pockets, when steam diffuses, will diffuse steam and introduce condensing surface.
Diffuse in the method at RH stove vacuum pump system steam pockets steam according to the present invention, said condensing surface is the C3 condensing surface that is arranged near the platform of steam pockets.
Diffuse in the method at RH stove vacuum pump system steam pockets steam according to the present invention, said C3 condensing surface is airtight and be connected with water of condensation.
Diffuse in the method at RH stove vacuum pump system steam pockets steam according to the present invention; Said C3 condensing surface top is provided with the top spray thrower; Said C3 condensing surface middle part is provided with the middle part spray thrower; Diffuse vapor stream when feeding the C3 condensing surface, vapor stream spray with the top spray thrower with middle part spray thrower from the C3 condensing surface and under water of condensation carry out heat exchange and be condensed into water.
Diffuse method at RH stove vacuum pump system steam pockets steam according to the present invention; It is characterized in that and to realize that through utilizing existing C 3 condensing surfaces steam pockets steam diffuses; Having solved prior steam diffuses in the method and to have the problem that the noise decibel is higher, the time length is long partially when directly in factory building, diffusing diffusing of causing in the atmosphere through the incidental bleeder of drum; And getting into the water of condensation of the vapour stream of C3 condensing surface under with spraying from condenser overhead and middle part carries out heat exchange and is condensed into water; System is not had any detrimentally affect, thereby reached reduction and abated the noise safe and harmless purpose of diffusing.
Description of drawings
Through the description of exemplary embodiment of the present being carried out below in conjunction with accompanying drawing, above-mentioned and other purposes of the present invention and characteristics will become apparent, wherein:
Fig. 1 is the synoptic diagram that traditional RH stove vacuum pump system steam pockets steam diffusion system is shown.
Fig. 2 is the synoptic diagram that illustrates according to RH stove vacuum pump system steam pockets steam diffusion system of the present invention.
Fig. 3 is the synoptic diagram that the structure of two stage supercharging vacuum system is shown.
Embodiment
With reference to accompanying drawing the present invention has been described more fully hereinafter, embodiments of the invention shown in the drawings.Yet the present invention can implement with many different forms, and should not be interpreted as the embodiment that is confined to here to be proposed.On the contrary, provide these embodiment to make that the disclosure will be thorough with completely, and scope of the present invention is conveyed to those skilled in the art fully.In the accompanying drawings, for clarity, can exaggerate the layer with the zone size and relative dimension.
Molten steel RH external refining stove vacuum pump system finishes the back system not under the pattern of forvacuum in the molten steel processing; Vacuum pump is all stopped transport; The steam main valve is closed, and when vacuum pump system broke sky, the interior vapor pressure of steam pockets (vapour distributor) raise instantaneity suddenly and need diffuse to atmosphere.
Fig. 1 is the synoptic diagram that traditional RH stove vacuum pump system steam pockets steam diffusion system is shown.
With reference to Fig. 1; Traditional RH stove vacuum pump system steam pockets steam diffusion system comprises steam main valve 1, steam pockets 2, drain valve 3, and wherein, drain valve mainly rises steam is purified; Reduce water of condensation content in the steam; Improve the effect of its saturation ratio, among Fig. 1, " supply B1, supply B2, supply 3a, supply 3b, supply 4a, supply 4b " refers to through steam pockets working steam supplied with vapour booster pump B1, B2 and vapor jet pump 3a, 3b, 4a, 4b.
Fig. 3 is the synoptic diagram that the structure of two stage supercharging vacuum system is shown.With reference to Fig. 3; The two stage supercharging vacuum pump system has disposed two row pump: A row and B row, and wherein, the A row are mainly used in normal work stage; Form by vapour booster pump B1 and B2, vapor jet pump 3a and 4a, be used for system is evacuated to high vacuum (subatmospheric lower pressure); The unloading phase that the B row being mainly used in system; Form by vapor jet pump 3b and 4b; Be used for system is evacuated to than rough vacuum (pressure below atmospheric pressure), effect is that the exhaust capacity and the shortening that improve the rough vacuum section are bled the time, takes out jet vacuum pump in advance so be parallel with two at last two-stage jet vacuum pump.Condensing surface C1, C2 and C3 are that A, B two row pumps are shared, and the water inlet of every condensing surface is divided into its top and the water inlet of middle part two-way, and every road water inlet control valve is by system's different operating state interlocking action.To describe in further detail hereinafter about condensing surface.
The steam pockets steam mode of diffusing all is designed to diffuse in factory building or outside the factory building in the atmosphere through the incidental bleeder of steam pockets usually; Because the steam that diffuses is medium temperature and medium pressure steam (pressure 1.2～1.4MPa; 210～230 ℃ of temperature); The noise decibel that produces when causing steam in the steam pockets to diffuse is big (about about 100～120dB) very, diffuses the time at random and fixing, diffuses about 3～5 minutes of time length.Therefore, the existing steam pockets mode of diffusing exists mainly that to diffuse noise big, and the high-decibel noise causes bigger harm to post personnel's body and mind in the zone, is difficult to satisfy the requirement of post occupational safety and health environmental protection system management.
Diffuse the operation present situation to current RH stove vacuum pump system steam pockets steam, the present invention has designed a kind of RH of being specifically designed to stove vacuum pump system steam pockets steam and has diffused method.Utilize this method, when RH stove vacuum pump system steam pockets steam diffused, it was simple and convenient, safe to make that steam pockets steam diffuses, noiselessness, and cost has improved post occupational safety and health Environmental Protection Level.
Fig. 2 is the synoptic diagram that illustrates according to RH stove vacuum pump system steam pockets steam diffusion system of the present invention.
With reference to Fig. 2, RH stove vacuum pump system steam pockets steam diffusion system comprises steam main valve 1, steam pockets 2, drain valve 3 and third stage condensing surface (being also referred to as the C3 condensing surface) 4 according to an exemplary embodiment of the present invention.As shown in Figure 3; Condensing surface generally all is provided with 3 in the system; Be respectively C1 (first step), C2 (second stage) and C3 (third stage) condensing surface, the effect of condensing surface is steam, the mixed condensation of gas of waste gas of molten steel treating processes generation, the dedusting that forevacuum pump is discharged, with the vapor condensation Cheng Shui in steam, the waste gas gas mixture; To reduce the load of bleeding of back level (next stage) vacuum pump, improve the working efficiency of back level (next stage) jet vacuum pump.
In the present invention, the latus rectum of C3 condensing surface 4 can be DN1600mm, and the top of C3 condensing surface 4 is provided with top spray thrower 5, and the middle part of said C3 condensing surface 4 is provided with middle part spray thrower 6.RH stove vacuum pump system steam pockets steam diffuses method according to an exemplary embodiment of the present invention; Said method is connected to condenser through the bleeder (latus rectum can be DN25mm) with steam pockets; When steam diffuses; To diffuse steam and introduce condensing surface, said condensing surface is to be arranged near the C3 condensing surface 4 on the platform steam pockets, and said C3 condensing surface 4 is airtight and be connected with water of condensation.Diffuse vapor stream when feeding C3 condensing surface 4 through the bleeder (not shown) that is communicated with C3 condensing surface 4; Vapor stream with from the middle part spray thrower of C3 condensing surface 45 with top spray thrower 6 sprays and under water of condensation carry out heat exchange and be condensed into water; Therefore; System is not had any detrimentally affect, thereby reached reduction and abated the noise safe and harmless purpose of diffusing.
RH stove vacuum pump system steam pockets steam diffuses method according to an exemplary embodiment of the present invention; It is characterized in that extra sound damper need not being set for steam pockets steam diffusion system; And can be through utilizing existing C 3 condensing surfaces; Under the situation that does not increase any investment, reduce, completely cut off and eliminated the high-decibel noise of generation when diffusing, realize safe and harmless diffusing.This RH stove vacuum pump system steam pockets steam diffuses the method simplicity of design, implements easily.
Though illustrated and described the example of exemplary embodiment of the present invention; But what those skilled in the art should understand that is; Exemplary embodiment of the present invention is not limited thereto; Do not breaking away under the situation of the spirit and scope of the present invention that limit like claim, can carry out various modifications exemplary embodiment of the present invention.
Claims (4)
1. a RH stove vacuum pump system steam pockets steam diffuses method, and said method is connected to condenser through the bleeder with steam pockets, when steam diffuses, will diffuse steam and introduce condensing surface.
2. RH stove vacuum pump system steam pockets steam according to claim 1 diffuses method, and wherein, said condensing surface is the third stage condensing surface that is arranged near the platform of steam pockets.
3. RH stove vacuum pump system steam pockets steam according to claim 2 diffuses method, and wherein, said third stage condensing surface is airtight and be connected with water of condensation.
4. RH stove vacuum pump system steam pockets steam according to claim 3 diffuses method; Wherein, Said third stage condensing surface top is provided with the top spray thrower; Said third stage condensing surface middle part is provided with the middle part spray thrower, diffuses vapor stream when feeding third stage condensing surface, vapor stream spray with the top spray thrower with middle part spray thrower from third stage condensing surface and under water of condensation carry out heat exchange and be condensed into water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103200877A CN102392103A (en) | 2011-10-20 | 2011-10-20 | Steam releasing method for RH vacuum pump system steam dome |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103200877A CN102392103A (en) | 2011-10-20 | 2011-10-20 | Steam releasing method for RH vacuum pump system steam dome |
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| CN102392103A true CN102392103A (en) | 2012-03-28 |
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| CN2011103200877A Pending CN102392103A (en) | 2011-10-20 | 2011-10-20 | Steam releasing method for RH vacuum pump system steam dome |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047863A (en) * | 2012-12-25 | 2013-04-17 | 攀钢集团西昌钢钒有限公司 | Purging and diffusing device and purging and diffusing method for baker pipeline |
| CN110512052A (en) * | 2019-09-30 | 2019-11-29 | 攀钢集团西昌钢钒有限公司 | A kind of RH refining furnace steam is without diffusion system of making an uproar |
| CN110777139A (en) * | 2019-05-07 | 2020-02-11 | 宁波大学 | Co-crosslinking immobilization method of nitrile hydratase |
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2011
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| CN101457774A (en) * | 2007-12-14 | 2009-06-17 | 王宇志 | Combined steam jet vacuum pump system capable of utilizing exhaust heat |
| CN201326587Y (en) * | 2008-12-25 | 2009-10-14 | 无锡四方电炉有限公司 | Vacuumizing device for smelting |
| CN201358966Y (en) * | 2009-02-27 | 2009-12-09 | 鞍山创新实业有限公司 | Steam-jet vacuum pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047863A (en) * | 2012-12-25 | 2013-04-17 | 攀钢集团西昌钢钒有限公司 | Purging and diffusing device and purging and diffusing method for baker pipeline |
| CN110777139A (en) * | 2019-05-07 | 2020-02-11 | 宁波大学 | Co-crosslinking immobilization method of nitrile hydratase |
| CN110777139B (en) * | 2019-05-07 | 2022-09-06 | 宁波大学 | Co-crosslinking immobilization method of nitrile hydratase |
| CN110512052A (en) * | 2019-09-30 | 2019-11-29 | 攀钢集团西昌钢钒有限公司 | A kind of RH refining furnace steam is without diffusion system of making an uproar |
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Application publication date: 20120328 |