CN101885992B - Improved pumping and leading-in device for gasifier to start working - Google Patents
Improved pumping and leading-in device for gasifier to start working Download PDFInfo
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- CN101885992B CN101885992B CN2010101485425A CN201010148542A CN101885992B CN 101885992 B CN101885992 B CN 101885992B CN 2010101485425 A CN2010101485425 A CN 2010101485425A CN 201010148542 A CN201010148542 A CN 201010148542A CN 101885992 B CN101885992 B CN 101885992B
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Abstract
The invention relates to an improved pumping and leading-in device for a gasifier to start working. The improved pumping and leading-in device comprises an oil ring vacuum pump, a gas-oil separator and a heat exchanger, wherein the oil ring vacuum pump is connected with the gas-oil separator; the gas-oil separator is connected with the heat exchanger; the heat exchanger is connected with the oil ring vacuum pump; the oil ring vacuum pump leads the pumped gas into the gas-oil separator; the gas-oil separator discharges the mixed gas; and liquid is subjected to heat exchange by the heat exchanger and returns to the oil ring vacuum pump again for reuse. An oil ring vacuum pump set exhaust device substitutes for the conventional pumping and leading-in device, so that the steam consumption at a starting stage is reduced on the premise of meeting the technical requirement of the vacuum degree of the gasifier. Compared with the prior art, the improved pumping and leading-in device has the advantages of economical operation, less vapor water loss, high automation degree of pump set operation, safe, simple and convenient operation, low noise, compact structure, small occupied area, reduction in starting boiler capacity and reduction in initial investment.
Description
Technical field
The present invention relates to a kind of pumping and leading-in device for gasifier to start working, be meant especially and adopt taking out after the improvement substituted original steam driven mode to draw equipment.
Background technology
In startup, parking and the maintenance process of vapourizing furnace, the effect of air extractor is to extract gas in vapourizing furnace and the associated conduit out, to set up and to keep the little subnormal ambient in the vapourizing furnace in the start-stop car process.The main effect of air extractor has: combustion-supporting gas in the displacement gas stove before the igniting; Prevent temperature in tempering, the even stove during igniting baker, get rid of combustion exhaust; Stop cooling, prevent when changing burner high-temperature gas from the fire door ejection hurt sb.'s feelings, when overhauling as plenum or the like.Reach in the general control stove in the production-0.018MPa (g) get final product, and the extraction equipment of using always is a vapor jet pump.The selection of extraction equipment should be considered from the economy and the safety perspective of the operation of full factory; Vapor jet pump is applicable to that operating pressure is greater than 3kPa; The suction all gases occasion, especially the suction condensable gases (promptly be condensed in water or meet cold agglomerative gas), advantage is more outstanding when having dust and particle media.
In the prior art, extraction equipment is generally steam injector in the pumping and leading-in device for gasifier to start working, and steam is provided by auxilliary vapour commonly used or donkey boiler.Consequent Financial cost is high, and the shortcoming that level of automation is low manifests gradually.
Liquid-ring vacuum pump is a kind of positive-displacement pump, if adopt oil as circulatory mediator, its obtainable highest attainable vacuum is about 130Pa.Because developing by leaps and bounds of vacuum application technology, oil ring formula vacuum pump is used also increasing in the attention that obtains people aspect the vacuum acquisition.The vacuum tightness of gasifier to start working or shutdown phase is about 20kPa, and intake-gas is air or synthetic gas or by 11%～13% CO
2And N
2, water vapour, a spot of O
2And the SO of minute quantity
2Or H
2The high-temperature flue gas that S forms does not have the object of solid granular.From technical parameter, oil ring vacuum pump can satisfy gasification fully and go into operation the stage to the requirement of vacuum unit, so the present invention from then on angle sets out, has improved going into operation of vapourizing furnace and has taken out the mode of drawing.
See also shown in Figure 1ly, it is the workflow synoptic diagram of available technology adopting steam injector as pumping and leading-in device, and certain gasification installation (vapourizing furnace) is handled coal ability～2000t coal/sky, produces clean synthetic gas ability～131000Nm
3/ h adopts the steam injector air extractor that goes into operation, and the steam that comes from plant area's high pressure steam pipe system is through Desuperheating and decompressing device for steam 4; Adjust to required temperature and pressure; Steam in steam injector 2 through the time pumped gas sucked, mixes with high velocity vapor stream, through sound damper 3 entering steam separators 5; Gas phase mixture directly enters atmosphere from steam separator 5 tops, and the lime set that steam separator 5 is collected is with being pumped to system's reuse.Press during this covering device is provided with to start one in boiler, press saturation steam and superheated vapour 16.1 ten thousand t/ in the product, the quantity of steam that steam injector used when the supply gasification installation started is 4.2 ten thousand tons/year.
Summary of the invention
In view of this, the object of the present invention is to provide and a kind ofly non-ly steam-poweredly can satisfy gasifier to start working that Technology required, had again better economic property and take out and draw method.
For reaching above-mentioned purpose, the technical scheme that the present invention adopts is: a kind of improved pumping and leading-in device for gasifier to start working is characterized in that: comprise oil ring vacuum pump, oil-gas separator, water supply cooling recirculation system; Oil ring vacuum pump extracts pumped gas and import oil-gas separator, and oil-gas separator is emitted gas, and oil warp in oil-gas separator is collected and is cooled.Come back to the reuse of oil ring formula vacuum pump after oil and the heat exchange of water supply cooling recirculation system.Wherein, oil-gas separator is provided with the two position unit.The working medium of oil ring vacuum pump is a turbine oil.Its heat-eliminating medium of interchanger is a recirculated cooling water.
The present invention replaces existing pumping and leading-in device with oil ring vacuum pump group gas barrier, the steam consumption the unloading phase having reduced under the technical request that satisfies vapourizing furnace vacuum tightness.Compared with prior art, have the following advantages:
First: economical operation, cost are merely 20%～30% of steam injector.
Second: loss of steam and water is less.
The 3rd: pump group operation level of automation is high, operational safety, easy.
The the 5th: reduce to start boiler capacity, reduce initial outlay, reduce to take up an area of.
Description of drawings
Fig. 1 is the workflow synoptic diagram of available technology adopting steam injector as pumping and leading-in device;
Fig. 2 is the workflow synoptic diagram of a kind of improved pumping and leading-in device for gasifier to start working of the present invention;
Fig. 3 is the embodiment of a kind of improved pumping and leading-in device for gasifier to start working of the present invention.
Code name explanation among the figure
The 1-crude synthesis gas washes tower; The 2-steam injector; The 3-sound damper;
The 4-Desuperheating and decompressing device for steam; The 5-steam separator;
The 6-oil ring vacuum pump; The 7-interchanger; 8-hangs down fluid level controller;
The high fluid level controller of 9-; The 10-oil-gas separator;
Embodiment
For making your inspector know composition of the present invention, and embodiment, cooperate graphic explanation following now:
Pumping and leading-in device for gasifier to start working of the present invention is made up of a table oil ring vacuum pump 6 (comprising phonomoter), oil-gas separator 10, interchanger 7 (water supply cooling recirculation system), high and low fluid level controller 8,9, relevant pipeline and electrical equipment, thermal technology's opertaing device.This device is to wash the device pneumatic outlet at gasification product oil ring vacuum pump is set.In the displacement stage, the gas that oil ring vacuum pump is extracted out is air; Ignition phase, the gas that oil ring vacuum pump is extracted out is the starting fluid gas fume after burning, contains a certain amount of CO
2With minute quantity SO
2Or H
2S and water vapour.The gas of extracting out gets into oil-gas separator.After gas, liquid mixture separated, gas entered atmosphere or gets into torch burning, and oil gets into interchanger, and cooled oil enters in the pump again.For guaranteeing the performance of oil ring vacuum pump, also can regularly the turbine oil in the fuel tank be imported water-and-oil separator, remove water content in oil.Should guarantee that synthetic gas washes device and moves simultaneously during this air-bleed system operation, its working medium of oil ring vacuum pump is a turbine oil.Its heat-eliminating medium of interchanger is a recirculated cooling water.
The present invention adopts oil ring vacuum pump to replace steam injector, sees also Fig. 2 and shown in Figure 3, the steam consumption the unloading phase having reduced under the technical request that satisfies vapourizing furnace vacuum tightness.
Fig. 2 has shown the workflow diagram that adopts oil ring vacuum pump replacement steam injector; Oil ring vacuum pump 6 is extracted pumped gas out, delivers in the oil-gas separator 10, and mixed gas carries from oil ring vacuum pump 6 separating of oilly gets off; With get back in the pump mixed gas emptying after the recirculated water heat exchange.
Fig. 3 has shown the practical implementation technical process; Crude synthesis gas washes tower 1 pneumatic outlet oil ring vacuum pump 6 is set; Pumped gas is extracted out by oil ring vacuum pump 6, delivers in the oil-gas separator 10, separating of oilly gets off what mixed gas carried from water ring vacuum pump 6; Carry out getting back in the oil ring vacuum pump 6 mixed gas emptying after the recirculated water heat exchange through interchanger 7.The height of liquid levels directly has influence on the performance of vacuum pump 6 in the oil-gas separator 10, so the water level that low fluid level controller 8 and high fluid level controller 9 are used for controlling oil-gas separator 10 is set.Wherein low fluid level controller 8 and high fluid level controller 9, what it can adopt is the mechanical type floater controlled valve, a control oil-feed, a control oil extraction keeps within the specific limits its liquid level.
Oil ring vacuum pump group pumping and leading-in device is compared facility investment with the steam injector pumping and leading-in device slightly high, but after adopting the inventive method, and the MP steam consumption reduces approximately 1/4 unloading phase of gasification installation, starts that rated capacity of boiler is corresponding to be reduced.In addition; Steam injector pumping and leading-in device and oil ring vacuum pump group pumping and leading-in device running cost are widely different, and water ring vacuum pump group pumping and leading-in device running cost is very low, has only 25% of steam jet vacuum pump pumping and leading-in device; Therefore, adopt oil ring vacuum pump group pumping and leading-in device economic benefit more remarkable.
Claims (4)
1. an improved pumping and leading-in device for gasifier to start working is characterized in that: comprise oil ring vacuum pump, oil-gas separator, interchanger;
Wherein oil ring vacuum pump connects oil-gas separator, and oil-gas separator connects interchanger, and interchanger connects oil ring vacuum pump again;
Oil ring vacuum pump imports oil-gas separator with pumped gas, and oil-gas separator is emitted mixed gas, and liquid comes back to the reuse of oil ring formula vacuum pump after through the interchanger heat exchange.
2. a kind of improved pumping and leading-in device for gasifier to start working as claimed in claim 1, it is characterized in that: oil-gas separator is provided with the two position unit.
3. a kind of improved pumping and leading-in device for gasifier to start working as claimed in claim 1 is characterized in that: the working medium of oil ring vacuum pump is a turbine oil.
4. a kind of improved pumping and leading-in device for gasifier to start working as claimed in claim 1 is characterized in that: the heat-eliminating medium of interchanger is a recirculated cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101485425A CN101885992B (en) | 2010-04-14 | 2010-04-14 | Improved pumping and leading-in device for gasifier to start working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101485425A CN101885992B (en) | 2010-04-14 | 2010-04-14 | Improved pumping and leading-in device for gasifier to start working |
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| CN101885992A CN101885992A (en) | 2010-11-17 |
| CN101885992B true CN101885992B (en) | 2012-11-14 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481896A (en) * | 2014-11-25 | 2015-04-01 | 江苏华伦化工有限公司 | 2BV water ring vacuum pump device and process |
| CN109988591A (en) * | 2019-04-18 | 2019-07-09 | 辽宁科技大学 | A kind of preparation of paraffin gas, desulfurization detar device and method |
| CN110699123B (en) * | 2019-11-06 | 2021-01-01 | 广西华银铝业有限公司 | Safety maintenance method for atmospheric fixed bed gas producer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681804Y (en) * | 2004-01-16 | 2005-03-02 | 上海宝钢化工有限公司 | Tar and exhaust gas treating device |
| CN2861161Y (en) * | 2005-03-16 | 2007-01-24 | 长春鹤达环保能源开发有限公司 | Biomass gasification device |
| CN2898373Y (en) * | 2006-04-30 | 2007-05-09 | 上海新天和树脂有限公司 | Oil-water separator of oil-ring vacuum pump |
| CN201660607U (en) * | 2010-04-14 | 2010-12-01 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Improved pumping device used at start working stage of gasification furnace |
-
2010
- 2010-04-14 CN CN2010101485425A patent/CN101885992B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681804Y (en) * | 2004-01-16 | 2005-03-02 | 上海宝钢化工有限公司 | Tar and exhaust gas treating device |
| CN2861161Y (en) * | 2005-03-16 | 2007-01-24 | 长春鹤达环保能源开发有限公司 | Biomass gasification device |
| CN2898373Y (en) * | 2006-04-30 | 2007-05-09 | 上海新天和树脂有限公司 | Oil-water separator of oil-ring vacuum pump |
| CN201660607U (en) * | 2010-04-14 | 2010-12-01 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Improved pumping device used at start working stage of gasification furnace |
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|---|---|
| CN101885992A (en) | 2010-11-17 |
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Application publication date: 20101117 Assignee: North China Beijing Guoyan Technical Testing Co., Ltd. Assignor: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation Contract record no.: 2015990000320 Denomination of invention: Improved pumping and leading-in device for gasifier to start working Granted publication date: 20121114 License type: Exclusive License Record date: 20150514 |
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Address after: 100120 Beijing city Xicheng District Street No. 24 Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100120 Beijing city Xicheng District Street No. 24 Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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Change date: 20160408 Contract record no.: 2015990000320 Assignor after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Assignor before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: North China Beijing Guoyan Technical Testing Co., Ltd. Assignor: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Contract record no.: 2015990000320 Date of cancellation: 20160422 |
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