CN203768397U - Vacuumizing system for vacuum degassing and smelting furnace - Google Patents
Vacuumizing system for vacuum degassing and smelting furnace Download PDFInfo
- Publication number
- CN203768397U CN203768397U CN201420051755.XU CN201420051755U CN203768397U CN 203768397 U CN203768397 U CN 203768397U CN 201420051755 U CN201420051755 U CN 201420051755U CN 203768397 U CN203768397 U CN 203768397U
- Authority
- CN
- China
- Prior art keywords
- pump
- vacuum
- communicated
- booster pump
- air outlet
- 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
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a vacuumizing system for a vacuum degassing and smelting furnace, which comprises a first steam booster pump, a second steam booster pump, a third steam booster pump and a first central condenser; the first steam booster pump is communicated with the first central condenser through the second steam booster pump and the third steam booster pump sequentially; the vacuumizing system for the vacuum degassing and smelting furnace disclosed by the utility model further comprises a buffer condensation tank, a roots vacuum pump and a screw vacuum pump; the air inlet of the buffer condensation tank is communicated with the air outlet of the first central condenser; the air outlet of the buffer condensation tank is communicated with the air inlet of the roots vacuum pump through a vacuum distribution pipe; the air outlet of the roots vacuum pump is communicated with the air inlet of the screw vacuum pump; and the air outlet of the screw vacuum pump is communicated with a system exhaust hole. The vacuumizing system for the vacuum degassing and smelting furnace disclosed by the utility model has the advantages of being low in energy waste, little in dust pollution, resistant in high temperature, low in energy consumption and the like.
Description
Technical field
The utility model relates to the vaccum-pumping equipment in a kind of metallurgy industry, particularly a kind of pumped vacuum systems for vacuum outgas smelting furnace.
Background technology
In smelting industry, in the converter of extraordinary iron and steel, need molten steel to carry out Fruit storage, under certain vacuum condition, molten steel is carried out to deoxidation, dehydrogenation, denitrogenation processing.Last century, the fifties, it is found that, the hydrogen in molten steel and nitrogen can cause emitting slag phenomenon, thus cause molten steel cannot pour into a mould or Steel Rolling after produce waste product, therefore in refining process, must carry out Fruit storage to molten steel.In having the refining unit of vacuum outgas function, VD/VOD device and RH device use the most extensive.RH(vacuum circulation degassing) device is a kind of vacuum refining method of molten steel inhaling type circular treatment, its vacuum chamber bottom is provided with two tubular stingers, can insert in the molten steel of ladle below, a tubular stinger is wherein blown into rare gas element argon gas (Ar), making molten steel upwards flow into vacuum chamber processes, by another tubular stinger, molten steel is back in ladle, so carry out circular treatment, its advantage is that the treatment time is short, cost is low, can mates with revolving furnace continuous casting, thereby extensive application and converter operation.VD/VOD(vacuum outgas/vacuum oxygen is degassed) device be that ladle is placed in vacuum seal container and carries out vacuum-treat, the treatment time is short, steel treatment amount is large.Above-mentioned various vacuum outgas smelting furnace all can be discharged a large amount of smelting gas in smelting process, owing to approaching vacuum in vacuum smelting furnace, its air pressure is far below extraneous normal atmosphere, smelting gas can not directly discharge, therefore to use special-purpose vaccum-pumping equipment, to gas repeatedly pressurized treatment could discharge.
In the vacuum smelting furnace of prior art, mostly use vacuum system that multistage (Pyatyi or six grades) full vapor jet pump forms as the vaccum-pumping equipment of smelting gas, comprise the pressurised steam pump of three grades of front ends, the vapor jet pump of rear end secondary, and central condenser in the middle of three steam, for avoiding too much water vapor to impact system vacuum; Also by some, use vacuum system that full oil-sealed rotary pump forms as vacuum deaerator plant, comprise front end secondary or three grades of lobe pumps and rear end one-level dry-type spiral pump.
The vacuum outgas system that multistage full vapor jet pump forms, need to consume a large amount of steam, the steam that the afterheat steam that the general source of described steam produces when converter and the coal firing boiler of providing for oneself produce.At water, be heated in the process such as become steam, steam is carried by pipeline valve, vapo(u)r blasting decompression phase transformation, steam is consumed as a kind of energy, and the efficiency of conversion of energy is very low, and energy consumption is huge.And if adopt coal firing boiler to produce steam, steam and water of condensation thereof can be carried secretly and wash away a large amount of ashes and refining objectionable impurities is out dissolved in water, and the noise of nearly 120 decibels that produces of production process, all can cause the substantial pollution of environment.
The vacuum outgas system that full oil-sealed rotary pump forms, do not need to consume steam, but adopt electric energy driving device pump to vacuumize, the energy of its consumption (converting heat kilocalorie to) on year-on-year basis vapor jet pump will have been saved 80% left and right, but oil-sealed rotary pump is difficult to process high temperature and the higher gas of dust content, therefore in the vacuum system that adopts oil-sealed rotary pump as vacuum smelting furnace, need to before system, be equipped with vacuum cloth deep bed filter and heat sink, and the afterheat steam that converter produces can not be fully used, can only scatter and disappear.This system stability is poor, and failure rate is higher, and cost is higher, and the production cost of the vacuum system of a set of complete oil-sealed rotary pump is than the expensive 4-5 of the production cost of the vacuum system of a set of complete vapor jet pump times of left and right.
Summary of the invention
The utility model provides a kind of pumped vacuum systems for vacuum outgas smelting furnace, efficiently solves that the energy dissipation that the vacuum deaerator plant of prior art exists is serious, environmental pollution serious, production cost is crossed high technical problem.
For addressing the above problem, the utility model provides following technical scheme:
The utility model relates to a kind of pumped vacuum systems for vacuum outgas smelting furnace, comprises the first vapour booster pump, the second vapour booster pump, the 3rd vapour booster pump and the first central condenser; Described the first vapour booster pump is communicated to described the first central condenser by described the second vapour booster pump, described the 3rd vapour booster pump successively; Also comprise a buffering drainer, a Roots vaccum pump and a screw vacuum pump; The inlet mouth of described buffering drainer is communicated to the air outlet of described the first central condenser, and the air outlet of described buffering drainer is communicated to the inlet mouth of described Roots vaccum pump by a vacuum distribution piping; The air outlet of described Roots vaccum pump is communicated to the inlet mouth of described screw vacuum pump; The air outlet of described screw vacuum pump is communicated to a system exhaust.
Pumped vacuum systems for vacuum outgas smelting furnace described in the utility model, also comprises the 4th vapour booster pump, the 5th vapour booster pump, the second central condenser and the 3rd central condenser; Described the first central condenser is communicated to described the second central condenser by described the 4th vapour booster pump; Described the second central condenser is communicated to described the 3rd central condenser by described the 5th vapour booster pump; The venting port of described the 3rd central condenser is communicated to described system exhaust.
Pumped vacuum systems for vacuum outgas smelting furnace described in the utility model, also comprises one second Roots vaccum pump and one second screw vacuum pump; The air outlet of described buffering drainer is communicated to the inlet mouth of described the second Roots vaccum pump by described vacuum distribution piping; The air outlet of described the second Roots vaccum pump is communicated to the inlet mouth of described the second screw vacuum pump; The air outlet of described the second screw vacuum pump is communicated to described system exhaust.
Described screw vacuum pump and/or described the second screw vacuum pump can replace with a straight-line air cooling lobe pump, and the air outlet of described Roots vaccum pump and/or described the second Roots vaccum pump is communicated to the inlet mouth of described straight-line air cooling lobe pump; The air outlet of described straight-line air cooling lobe pump is communicated to described system exhaust.
Described the first central condenser, described the second central condenser or described the 3rd central condenser, its top is provided with a cooling fluid entrance, and its bottom is provided with a cooling liquid outlet.
Described the first vapour booster pump, described the second vapour booster pump, described the 3rd vapour booster pump, described the 4th vapour booster pump and described the 5th vapour booster pump are respectively equipped with a steam-in.
Pumped vacuum systems for vacuum outgas smelting furnace described in the utility model, also comprise a refrigerator, described buffering drainer is a jacketed type drainer, comprise a tank body and be coated on the cooling fluid interlayer of described tank body outside surface, the cooling fluid entrance of described cooling fluid interlayer is communicated to described refrigerator by a condensing coil, the cooling liquid outlet of described cooling fluid interlayer by pipeline communication to described refrigerator.
The inlet mouth place of described buffering drainer is provided with a pneumatic shutdown valve, the inlet mouth place of described Roots vaccum pump is provided with a pneumatic shutdown valve, the inlet mouth place of described screw vacuum pump is provided with a pneumatic shutdown valve, and the place, air outlet of described screw vacuum pump is provided with a pneumatic shutdown valve.
Between described the first central condenser and described the 4th vapour booster pump, be provided with a pneumatic shutdown valve; The place, air outlet of described the 3rd central condenser is provided with a pneumatic shutdown valve.
The utility model advantage is, provides a kind of vapor jet pump to mix the vacuum system forming with oil-sealed rotary pump, has the plurality of advantages such as energy dissipation is few, dust pollution is few, do not fear high temperature, energy consumption is low.Domestic vacuum smelting furnace (RH used at present, VD, vacuum system when VOD equal vacuum stove) overwhelming majority is vapor jet pump, can be transformed into vacuum system described in the utility model, improvement cost is lower, improvement effect is obvious, can save the energy 40% left and right, significantly reduces the detrimentally affect to vacuum effectiveness of dust that smelting furnace produces.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pumped vacuum systems for vacuum outgas smelting furnace described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail, those skilled in the art is more clearly understood and how to put into practice the utility model.Although should be appreciated that in conjunction with its preferred specific embodiments and described the utility model, these embodiments are intended setting forth, rather than limit scope of the present utility model.
As shown in Figure 1, the utility model relates to a kind of pumped vacuum systems for vacuum outgas smelting furnace, comprises the first vapour booster pump 1, the second vapour booster pump 2, the 3rd vapour booster pump 3 and the first central condenser 11; The first vapour booster pump 1 is communicated to the first central condenser 11 by the second vapour booster pump 2, the 3rd vapour booster pump 3 successively; Also comprise a buffering drainer 21, a Roots vaccum pump 22 and a screw vacuum pump 23; The inlet mouth of buffering drainer 21 is communicated to the air outlet of the first central condenser 11, and the air outlet of buffering drainer 21 is communicated to the inlet mouth of Roots vaccum pump 22 by a vacuum distribution piping 24; The air outlet of Roots vaccum pump 22 is communicated to the inlet mouth of screw vacuum pump 23; The air outlet of screw vacuum pump 23 is communicated to a system exhaust 14.In figure, arrow represents gas flow direction.
In extraordinary iron and steel smelting industry, need in converter, to molten steel, carry out Fruit storage, under certain vacuum condition, molten steel is carried out to deoxidation, dehydrogenation, denitrogenation processing.Under vacuum condition, carbon in molten steel carries out chemical reaction with the oxygen blasting, generate carbon monoxide and carbonic acid gas, the protium in molten steel generates hydrogen, nitrogen Element generation nitrogen, the gases such as the carbon monoxide oozing out from molten steel, carbonic acid gas, hydrogen, nitrogen, under the vacuum action of vacuum unit, be sucked away, thereby remove the nitrogen in molten steel, hydrogen, the elements such as carbon, have improved the purity of molten steel.For example, the dark carbonization treatment pattern adopting for special steels such as ultra low-carbon steels, represent that steel grade is IF steel, the automobile slab being namely usually commonly called as, the steel grade carbon content of its requirement is less than 100PPm, its content to C, N, O, S has very strict requirement, and its process characteristic is that requirement vacuum tightness is high, reaches below 65Pa; Require converter molten steel for band oxygen steel, band oxygen content control is between 400～800ppm, and carbon content is less than 0.05%, and nitrogen content is lower; Treatment time is long, and decarburization time is greater than 15min, is greater than 30min tap to tap time; Comparatively strict to the control of recycle stream.Special processing is to be mainly main a kind of processing mode for silicon steel, its essence is the molten steel after dark carbonization treatment is carried out to Si, the processing of the Alloying Treatment of Al and molten steel sublimate.
The utility model at work, the inlet mouth 1 of the first vapour booster pump is connected to vacuum smelting furnace, the utility model vacuumizes processing to vacuum smelting furnace, system exhaust 14 is connected to another exhaust treatment system or chimney, and the smelting gas in vacuum smelting furnace is system exhaust 14 discharges thus after processing via the utility model.Vacuum smelting furnace internal gas pressure is extremely low, approaches vacuum, far below extraneous normal atmosphere, smelts gas and can not directly discharge, and therefore repeatedly pressurized treatment could be discharged.The utility model adopts three grades of vapour booster pumps to carry out continuously pressurized treatment to tail gas, and then with continuous two-stage oil-sealed rotary pump continuation, tail gas is carried out to pressurized treatment, until tail gas pressure could be discharged after higher than external atmosphere pressure.
Smelt gas and may comprise that few hydrogen, nitrogen, hydrocarbon (as carbon monoxide, carbonic acid gas etc.) and oxynitrides are (as nitrogen protoxide, nitrogen peroxide etc.) etc., smelting gas temperature is high, if directly connect vaccum-pumping equipment, causes possibly vaccum-pumping equipment to damage.In addition, when oxygen decarburization, the scum that can produce a large amount of high heat is blended in tail gas vacuum smelting furnace (RH, VD, VOD equal vacuum stove), and vapour booster pump can be removed scum by uperize, and has reduced high-temperature gas to injury of the present utility model.
The utility model at work, discharge smelting gas and enter successively the first vapour booster pump 1, the second vapour booster pump 2, the 3rd vapour booster pump 3 by vacuum smelting furnace.The steam-in input water vapour of each vapour booster pump, for the smelting gas entering in the utility model increases air pressure, gas in vapour booster pump is mainly oxygen, nitrogen, water vapour, water smoke and above-mentioned smelting gas that part water vapour forms, a large amount of water vapour can effectively reduce the temperature of smelting gas, and high-pressure steam can also promote to smelt gas Rapid Flow to vaccum-pumping equipment.3 three grades of series connection successively of the first vapour booster pump 1, the second vapour booster pump 2, the 3rd vapour booster pump, can further improve rate of air sucked in required and the vacuum tightness of vacuum unit.The inlet mouth place vacuum tightness of the first vapour booster pump 1 is in 50Pa left and right, and exhaust ports vacuum tightness is in 400pa left and right; The inlet mouth place vacuum tightness of the second vapour booster pump 2 is in 400Pa left and right, and exhaust ports vacuum tightness is in 2kpa left and right; The inlet mouth place vacuum tightness of the 3rd vapour booster pump 3 is in 2kpa left and right, and exhaust ports vacuum tightness is in 8kpa left and right; The inlet mouth pressure of every one-level vapour booster pump is equal to or higher than previous stage exhaust ports pressure, guarantees that every increase one-level vacuum system has just improved corresponding vacuum tightness.
Smelt after the pressurized treatment of gas via three grades of vapour booster pumps, the gas pressure intensity that enters the first central condenser 11 can reach 8kpa left and right, carry a large amount of water smoke and supersaturation water steam simultaneously, once these water smokes and water vapour enter oil-sealed rotary pump, can have a strong impact on the life-span of oil-sealed rotary pump, even cause oil-sealed rotary pump to damage.The first central condenser 11 tops are provided with a cooling fluid entrance 15, and its bottom is provided with a cooling liquid outlet 16, utilize cooling fluid (water) to lower the temperature of smelting gas.In the first central condenser 11 internal gas, most of water vapor condensation becomes liquid water to stay the first central condenser 11 bottoms, utilizes return water pipe to concentrate and discharges, and effectively saves the consumption of working steam.The utility model is with the consumption that increases water of condensation, to exchange the saving of working steam amount for by the essence of central condenser, exchanges the steam of high price with water at a low price for, makes running cost be able to further reduction.
Smelting gas through the first central condenser 11 enters buffering drainer 21, further reduces water vapour and water smoke.Buffering drainer 21 also can be called cold well, it is a jacketed type drainer, comprise a tank body and be coated on the cooling fluid interlayer of described tank body outside surface, the cooling fluid entrance of described cooling fluid interlayer is communicated to refrigerator 34 by a condensing coil, the circulated refrigerated water that refrigerator 34 produces flows into described cooling fluid interlayer by condensing coil, the cooling liquid outlet of described cooling fluid interlayer by pipeline communication to refrigerator 34, refrigerator 34 carries out cooling process again by the water that completes heat exchange, condensing coil has increased the contact area of cooling fluid with buffering drainer 21 interior gases, can be so that the interior gas fast cooling of buffering drainer 21.When saturated gas touches refrigerating unit, gas, by further deep cooling, further reduces the dividing potential drop of saturated aqueous vapor, makes more water vapour be condensed out and forms liquid water.In buffering drainer, carry the gas of phlegma secretly by special tripping device, make phlegma pass through gravity mode separated from the gas, in the bottom of surge tank, be collected.Refrigerated water makes it keep constant adiabatic low temperature in the chuck of surge tank, guarantees that phlegma can again not absorb heat and become water vapour.
Smelt gas and become supercool gas after the interior further reduction temperature of buffering drainer 21, via vacuum distribution piping 24, Roots vaccum pump 22, screw vacuum pump 23, from system exhaust 14, discharge.Because mechanical pump is when compressing gas, can produce heat energy, make gas heating, improved the dividing potential drop of gas, make original excessively cold saturated gas become unsaturated gas, avoided formation and the accumulation of phlegma in mechanical pump, supercool gas has also played the effect of cooling mechanical pump simultaneously.
Roots vaccum pump 22 is a kind of oil-sealed rotary pumps, forms high vacuum at inlet mouth place, when pressurized gas is discharged, both can also directly discharge, and also can utilize next stage oil-sealed rotary pump to discharge.In the utility model, the inlet mouth vacuum pressure of Roots vaccum pump 22 is in 8kpa left and right, and venting port vacuum pressure is 25kpa, plays supercharging, has improved the rate of air sucked in required of system and the vacuum tightness of system.
Screw vacuum pump 23 is also a kind of oil-sealed rotary pump, and in gas inlet, place forms high vacuum, and pressurized gas is discharged.Dry screw vacuum pump can extract the gas occasion that contains a large amount of water vapors and a small amount of dust, and highest attainable vacuum is higher, and consumed power is lower, has the advantages such as energy-conservation, maintenance free.In the utility model, screw vacuum pump 23 inlet mouth place vacuum pressures are in 25kpa left and right, and the air pressure at system exhaust 14 places is higher than normal atmosphere (An) (101kpa), and system exhaust 14 is connected with other exhaust treatment systems or chimney, to discharge, smelt gas.
Pumped vacuum systems for vacuum outgas smelting furnace described in the utility model, also comprises one second Roots vaccum pump 32 and one second screw vacuum pump 33; The air outlet of buffering drainer 21 is communicated to the inlet mouth of the second Roots vaccum pump 32 by vacuum distribution piping 24; The air outlet of the second Roots vaccum pump 32 is communicated to the inlet mouth of the second screw vacuum pump 33; The air outlet of the second screw vacuum pump 33 is communicated to system exhaust 14.So just there have been two groups of oil-sealed rotary pumps to work simultaneously simultaneously, staff can freely select to need according to different vacuum requirement the pump group of use, two groups of oil-sealed rotary pumps also can be guaranteed the working effect of vacuum smelting furnace better, even if having one group to break down, also can not affect the use of whole system.When two groups of oil-sealed rotary pumps are worked simultaneously, vacuum distribution piping 31 is distributed in each group vacuum pump gas uniform; Smelt gas after Roots vaccum pump 22,32 compressions of previous stage, be expelled to second stage vacuum distribution piping, by second stage vacuum distribution piping, be redistributed to next stage screw vacuum pump 23,33, carry out further processed compressed.
Screw vacuum pump 23 and/or the second screw vacuum pump 33 can replace with straight-line air cooling lobe pump, and the air outlet of Roots vaccum pump 23 and/or the second Roots vaccum pump 33 is communicated to the inlet mouth of straight-line air cooling lobe pump; The air outlet of straight-line air cooling lobe pump is communicated to system exhaust 14.
Pumped vacuum systems for vacuum outgas smelting furnace described in the utility model, also comprises the 4th vapour booster pump 4, the central condenser 12 of the 5th vapour booster pump 5, second and the 3rd central condenser 13; The first central condenser 11 is communicated to the second central condenser 12 by the 4th vapour booster pump 4; The second central condenser 12 is communicated to the 3rd central condenser 13 by the 5th vapour booster pump 5; The venting port of the 3rd central condenser 13 is communicated to system exhaust 14.Each vapour booster pump is all provided with an inlet mouth, an air outlet, each central condenser is all provided with an inlet mouth, a venting port, in two adjacent members processes, the air outlet of upper level parts is communicated to the inlet mouth of next stage parts, its relationship between superior and subordinate is by gas flow direction decision in system, and the parts that gas is first flowed through are higher level's parts.In each central condenser, be provided with a coolant circulation system, central condenser overhead is provided with a cooling fluid entrance, and central condenser bottom is provided with a water outlet, and cooling fluid herein generally adopts cold water.The principle of work of the second central condenser 12 and the 3rd central condenser 13 is identical with aforesaid the first central condenser 11.Work as oil-sealed rotary pump, as Roots vaccum pump 22, screw vacuum pump 23, while being damaged, can also start the 4th vapour booster pump 4, the central condenser 12 of the 5th vapour booster pump 5, second and the 3rd central condenser 13.Now, vacuum system of the present utility model has just become the vacuum system of common Pyatyi steam topping-up pump form in prior art again.
The inlet mouth place of buffering drainer 21 is provided with a pneumatic shutdown valve 211, the inlet mouth place of Roots vaccum pump 22 is provided with a pneumatic shutdown valve 221, the inlet mouth place of screw vacuum pump 23 is provided with a pneumatic shutdown valve 231, and the place, air outlet of screw vacuum pump 23 is provided with a pneumatic shutdown valve 232.Between the first central condenser 11 and the 4th vapour booster pump 4, be provided with a pneumatic shutdown valve 111; The place, air outlet of the 3rd central condenser 13 is provided with a pneumatic shutdown valve 131.Staff can operate each pneumatic shutdown valve, selects as required the path of gas flow or the level of vacuum of control whole system.
Existing molten steel is carried out to the vacuum system that vacuum degasser adopts vapor jet pump to form mostly, if vapor jet pumps whole in vacuum system is all replaced to oil-sealed rotary pump, cost of investment is higher, and system stability is poor, and the afterheat steam that converter produces also will be wasted.If utilize the cogeneration of steam, generator will be a higher cost, and waste heat to be converted into the efficiency of electric power very low, iron and steel enterprise is lost more than gain.The utility model will add a part of oil-sealed rotary pump in existing vapor jet pump vacuum system, the advantage of the simultaneously compatible above-mentioned two kinds of vacuum systems of energy, be suitable for the vacuum smelting furnace backward in technique of part in existing steel industry and pumped vacuum systems thereof to carry out device upgrade, technological transformation cost is lower, can save the energy 40% left and right, significantly reduce the detrimentally affect to vacuum effectiveness of dust that smelting furnace produces, reach the correctional effect of energy-saving and emission-reduction.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. for a pumped vacuum systems for vacuum outgas smelting furnace, comprise the first vapour booster pump, the second vapour booster pump, the 3rd vapour booster pump and the first central condenser; Described the first vapour booster pump is communicated to described the first central condenser by described the second vapour booster pump, described the 3rd vapour booster pump successively; It is characterized in that, also comprise a buffering drainer, a Roots vaccum pump and a screw vacuum pump; The inlet mouth of described buffering drainer is communicated to the air outlet of described the first central condenser, and the air outlet of described buffering drainer is communicated to the inlet mouth of described Roots vaccum pump by a vacuum distribution piping; The air outlet of described Roots vaccum pump is communicated to the inlet mouth of described screw vacuum pump; The air outlet of described screw vacuum pump is communicated to a system exhaust.
2. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 1, is characterized in that, also comprises the 4th vapour booster pump, the 5th vapour booster pump, the second central condenser and the 3rd central condenser; Described the first central condenser is communicated to described the second central condenser by described the 4th vapour booster pump; Described the second central condenser is communicated to described the 3rd central condenser by described the 5th vapour booster pump; The venting port of described the 3rd central condenser is communicated to described system exhaust.
3. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 1 or 2, is characterized in that, also comprises one second Roots vaccum pump and one second screw vacuum pump; The air outlet of described buffering drainer is communicated to the inlet mouth of described the second Roots vaccum pump by described vacuum distribution piping; The air outlet of described the second Roots vaccum pump is communicated to the inlet mouth of described the second screw vacuum pump; The air outlet of described the second screw vacuum pump is communicated to described system exhaust.
4. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 3, it is characterized in that, described screw vacuum pump and/or described the second screw vacuum pump can replace with a straight-line air cooling lobe pump, and the air outlet of described Roots vaccum pump and/or described the second Roots vaccum pump is communicated to the inlet mouth of described straight-line air cooling lobe pump; The air outlet of described straight-line air cooling lobe pump is communicated to described system exhaust.
5. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 1 or 2, it is characterized in that, described the first central condenser, described the second central condenser or described the 3rd central condenser, its top is provided with a cooling fluid entrance, and its bottom is provided with a cooling liquid outlet.
6. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 1 or 2, it is characterized in that, described the first vapour booster pump, described the second vapour booster pump, described the 3rd vapour booster pump, described the 4th vapour booster pump and described the 5th vapour booster pump are respectively equipped with a steam-in.
7. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 2, it is characterized in that, also comprise a refrigerator, described buffering drainer is a jacketed type drainer, comprise a tank body and be coated on the cooling fluid interlayer of described tank body outside surface, the cooling fluid entrance of described cooling fluid interlayer is communicated to described refrigerator by a condensing coil, the cooling liquid outlet of described cooling fluid interlayer by pipeline communication to described refrigerator.
8. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 1, it is characterized in that, the inlet mouth place of described buffering drainer is provided with a pneumatic shutdown valve, the inlet mouth place of described Roots vaccum pump is provided with a pneumatic shutdown valve, the inlet mouth place of described screw vacuum pump is provided with a pneumatic shutdown valve, and the place, air outlet of described screw vacuum pump is provided with a pneumatic shutdown valve.
9. the pumped vacuum systems for vacuum outgas smelting furnace as claimed in claim 2, is characterized in that, between described the first central condenser and described the 4th vapour booster pump, is provided with a pneumatic shutdown valve; The place, air outlet of described the 3rd central condenser is provided with a pneumatic shutdown valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051755.XU CN203768397U (en) | 2014-01-27 | 2014-01-27 | Vacuumizing system for vacuum degassing and smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051755.XU CN203768397U (en) | 2014-01-27 | 2014-01-27 | Vacuumizing system for vacuum degassing and smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203768397U true CN203768397U (en) | 2014-08-13 |
Family
ID=51285608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420051755.XU Expired - Fee Related CN203768397U (en) | 2014-01-27 | 2014-01-27 | Vacuumizing system for vacuum degassing and smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203768397U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820604A (en) * | 2014-01-27 | 2014-05-28 | 上海零澜机械科技有限公司 | Vacuum pumping system for vacuum degassing smelting furnaces |
| CN107008912A (en) * | 2017-04-28 | 2017-08-04 | 江苏威拉里新材料科技有限公司 | A kind of gas purge system for smelting furnace |
| CN111467904A (en) * | 2020-04-01 | 2020-07-31 | 江苏格里克真空技术有限公司 | Boosting condensation separation adsorption filtering device |
-
2014
- 2014-01-27 CN CN201420051755.XU patent/CN203768397U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820604A (en) * | 2014-01-27 | 2014-05-28 | 上海零澜机械科技有限公司 | Vacuum pumping system for vacuum degassing smelting furnaces |
| CN103820604B (en) * | 2014-01-27 | 2018-08-17 | 上海伊莱茨真空技术有限公司 | A kind of pumped vacuum systems for vacuum outgas smelting furnace |
| CN107008912A (en) * | 2017-04-28 | 2017-08-04 | 江苏威拉里新材料科技有限公司 | A kind of gas purge system for smelting furnace |
| CN111467904A (en) * | 2020-04-01 | 2020-07-31 | 江苏格里克真空技术有限公司 | Boosting condensation separation adsorption filtering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104353258B (en) | Subtract top pumped vacuum systems and technique | |
| CN101476022B (en) | RH dry type vacuum refining apparatus | |
| CN203768397U (en) | Vacuumizing system for vacuum degassing and smelting furnace | |
| CN201897400U (en) | Vacuum-pumping system for air cooling condenser | |
| CN103820604A (en) | Vacuum pumping system for vacuum degassing smelting furnaces | |
| CN106440659A (en) | Low energy consumption inner compression air separation device | |
| CN101473994A (en) | Evacuating device of tobacco vacuum moisture regain box | |
| CN105483330B (en) | A kind of vacuum system and its control method for vacuum outgas smelting furnace | |
| CN204185513U (en) | RH refining furnace vacuum-pumping system | |
| CN102091441A (en) | Wall-flow vacuum degassing machine and circulating liquid automatic degassing method | |
| CN201495247U (en) | Rotary furnace gas waste heat utilization system | |
| CN204125482U (en) | The dry vacuum set of pumps of vacuum degassing refining furnace | |
| CN110295269B (en) | Vacuumizing method using vacuumizing device of refining furnace | |
| CN205590742U (en) | A vacuum system for vacuum degassing smelting furnace | |
| CN103882186B (en) | A kind of RH refining furnace vacuum extractor and using method thereof | |
| CN209210859U (en) | A kind of vacuum system applied in steel industry molten steel vacuum degassing process | |
| CN210974734U (en) | Blast furnace oxygen-enriched air blast system based on VPSA oxygen generation device | |
| CN212293372U (en) | Energy-saving vacuum system for coal-to-ethylene glycol process | |
| CN203807512U (en) | Vacuum-pumping device of RH refining furnace | |
| CN107062927B (en) | Multistage condenser reverse cooling noncondensable gas system for sea water desalination and process thereof | |
| CN206590926U (en) | Deoxygenation condensate vacuum system | |
| CN201599260U (en) | Vacuum extractor of turbine condenser | |
| CN104278285A (en) | Descaling device and method for induction coil of vacuum furnace and intermediate frequency furnace | |
| CN215765033U (en) | Exhaust steam recovery system | |
| CN212747392U (en) | Vacuum pumping system with novel intelligent adjusting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI ELIVAC VACUUM TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI ELIVAC COMPANY, LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Baihe Town, Qingpu District, Shanghai city 2963 201709 waiqingsong Highway No. 2 Lane 6 Building second layer Patentee after: ELIVAC COMPANY, LTD. Patentee after: Yi Laici fluid Equipment Limited, Suzhou Patentee after: Xiao Ran Address before: Baihe Town, Qingpu District, Shanghai city 2963 201709 waiqingsong Highway No. 2 Lane 6 Building second layer Patentee before: ELIVAC (Shanghai) Co., Ltd. Patentee before: Yi Laici fluid Equipment Limited, Suzhou Patentee before: Xiao Ran |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20170127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |