CN201660607U - Improved pumping device used at start working stage of gasification furnace - Google Patents
Improved pumping device used at start working stage of gasification furnace Download PDFInfo
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- CN201660607U CN201660607U CN2010201602462U CN201020160246U CN201660607U CN 201660607 U CN201660607 U CN 201660607U CN 2010201602462 U CN2010201602462 U CN 2010201602462U CN 201020160246 U CN201020160246 U CN 201020160246U CN 201660607 U CN201660607 U CN 201660607U
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- oil
- vacuum pump
- ring vacuum
- gas
- gas separator
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Abstract
The utility model relates to an improved pumping device used at the start working stage of a gasification furnace, which comprises an oil ring vacuum pump, an oil-gas separator and a heat exchanger, wherein the oil ring vacuum pump is connected with the oil-gas separator; the oil-gas separator is connected with the heat exchanger; and then the heat exchanger is connected with the oil ring vacuum pump. The oil ring vacuum pump guides the pumped gas into the oil-gas separator, the oil-gas separator gives out mixed gas, and liquid returns to the soil ring vacuum pump for reuse after receiving heat exchange of the heat exchanger. The oil ring vacuum pump exhaustion device is adopted to replace the conventional pump device, reducing the steam consumption at the start stage under the premise that the technical requirement on vacuity of the gasification furnace is met. Compared with the prior art, the utility model has the advantages of economical operation, small steam and water loss, high automation operation degree of the pump, safe and convenient operation, low noise, compact structure, small occupied area, less starting boiler capacity, and lower initial investment.
Description
Technical field
The utility model relates to a kind of pumping and leading-in device for gasifier to start working, is meant especially to 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 forced ventilation 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 height, 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 utility model 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, adopt the steam injector air extractor that goes into operation, from the next steam process Desuperheating and decompressing device for steam 4 of plant area's high pressure steam pipe system, adjust to required temperature and pressure, steam in steam injector 2 by the time pumped gas sucked, mixes with high velocity vapor stream, pass through sound damper 3 and enter steam separator 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.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of and non-ly steam-poweredly can satisfies gasifier to start working that Technology required, had again better economic and take out and draw method.
For reaching above-mentioned purpose, the technical solution adopted in the utility model 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, oil in oil-gas separator through collecting and being 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 controller.The working medium of oil ring vacuum pump is a turbine oil.Its heat-eliminating medium of interchanger is a recirculated cooling water.
The utility model 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 only are 20%～30% of steam injector.
Second: loss of steam and water is less.
The the 3rd: pump group operation level of automation height, 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 utility model;
Fig. 3 is the embodiment of a kind of improved pumping and leading-in device for gasifier to start working of the utility model.
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 auditor know composition of the present utility model, and embodiment, cooperate graphic being described as follows now:
The utility model pumping and leading-in device for gasifier to start working is made up of a table oil ring vacuum pump 6 (comprising electric motor), 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 operating 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 enters oil-gas separator.After gas, liquid mixture separated, gas entered atmosphere or enters torch burning, and oil enters interchanger, and cooled oil reenters in the pump.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 utility model 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 concrete implementing process flow 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, deliver in the oil-gas separator 10, with separating of oilly getting off that mixed gas carries 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, hangs down the water level that fluid level controller 8 and high fluid level controller 9 are used for controlling oil-gas separator 10 so be provided with.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 utility model method, and the middle pressure 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 by 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 controller.
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 |
|---|---|---|---|
| CN2010201602462U CN201660607U (en) | 2010-04-14 | 2010-04-14 | Improved pumping device used at start working stage of gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201602462U CN201660607U (en) | 2010-04-14 | 2010-04-14 | Improved pumping device used at start working stage of gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201660607U true CN201660607U (en) | 2010-12-01 |
Family
ID=43231022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201602462U Expired - Lifetime CN201660607U (en) | 2010-04-14 | 2010-04-14 | Improved pumping device used at start working stage of gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201660607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885992A (en) * | 2010-04-14 | 2010-11-17 | 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 and leading-in device for gasifier to start working |
-
2010
- 2010-04-14 CN CN2010201602462U patent/CN201660607U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885992A (en) * | 2010-04-14 | 2010-11-17 | 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 and leading-in device for gasifier to start working |
| CN101885992B (en) * | 2010-04-14 | 2012-11-14 | 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 and leading-in device for gasifier to start working |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101201 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |