CN203545957U - Composite cooling device - Google Patents
Composite cooling device Download PDFInfo
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- CN203545957U CN203545957U CN201320620687.XU CN201320620687U CN203545957U CN 203545957 U CN203545957 U CN 203545957U CN 201320620687 U CN201320620687 U CN 201320620687U CN 203545957 U CN203545957 U CN 203545957U
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- cooling
- scrubbing
- washing
- composite
- cooling tube
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Abstract
The utility model provides a composite cooling device. The composite cooling device comprises a washing and cooling pipe, a washing and cooling ring and a cooling water jacket, wherein the washing and cooling ring is used for generating a chilled water film; the cooling water jacket is sheathed at one end of the washing and cooling pipe, close to the washing and cooling ring. The composite cooling device provided by the utility model has the advantages that since the cooling water jacket is arranged at the outer side of a high-heat load area of the washing and cooling pipe, the damage of the washing and cooling pipe can be effectively avoided, so that the washing and cooling pipe is applicable to severer environments, the service life of the washing and cooling pipe is prolonged and the operation stability of a gasifying device in the chilling process is forcefully guaranteed; the grade of the material of the washing and cooling pipe can also be further reduced and the manufacturing cost of the washing and cooling pipe can be saved.
Description
Technical field
The utility model is particularly related to a kind of composite cooling apparatus.
Background technology
Entrained flow bed gasification technology is one of developing direction of gasification maximization technology.According to synthetic gas type of cooling difference, can be divided into chilling process and pot destroying process, wherein adopt the air-flow bed coal-gasification technology of chilling process to be used widely, adopt the representative of the entrained flow bed gasification technology of chilling process to comprise the multi-nozzle opposed Coal Gasification Technology (patent No. US7862632B2 that East China University of Science develops, ZL98110616.1, ZL01210097.8, ZL2005101114824.8, ZL200810039551.3) and the Texaco coal water slurry gasification technology of the U.S..
The airflow bed gasification furnace of chilling process connects scrubbing-cooling chamber (Ye Cheng shock chamber) by vaporizer bottom to be realized, and scrubbing-cooling tube (also claiming downtake) is the key part in scrubbing-cooling chamber.To the chilled water that passes into certain flow in scrubbing-cooling tube, go out vaporizer high temperature, high pressure, containing the crude synthesis gas of molten slag, contact in scrubbing-cooling tube with washing water, the processes such as cooling, crude synthesis gas humidification, slag cooled and solidified and the lime-ash that carries out crude synthesis gas is water infiltration, to go out crude synthesis gas Quench to 200～300 ℃ of 1200～1650 ℃ of vaporizer, and realize the cooling curing process of molten slag.
By above-mentioned known, in scrubbing-cooling tube, Working environment relates to High Temperature High Pressure, and caloic transmittance process is very violent., refractory scouring high temperature resistant for adapting to and need bear violent caloic transmission; the scrubbing-cooling tube of existing chilling process coal gasification apparatus all adopts light pipe type cylinder simple in structure; by selecting the high-grade alloy materials such as Incoloy825, Incoloy800; and the gravity sinking Quench moisture film that relies on washing and cooling ring to form; when realizing the cooling and slag of crude synthesis gas and solidifying, protection scrubbing-cooling tube is not subject to high temperature and slag corrosion.But the ature of coal of using along with gasification fluctuates, and particularly grey melting characteristic and the viscosity-temperature characteristics of coal change, often can occur not mate the local accumulated slag phenomenon of the vapourizing furnace cinder notch producing because of vapourizing furnace service temperature.For realizing slag tap; conventionally adopt the way that improves furnace temperature; this is higher by the crude synthesis gas temperature that makes to enter scrubbing-cooling tube; cause that synthetic gas flow velocity increases; or because causing synthetic air-flow deflection, the local accumulated slag of cinder notch directly contacts the severe situations such as wash cooling inside pipe wall; now the chilled water film uniformity of scrubbing-cooling tube inner side can be destroyed, and has reduced the provide protection to scrubbing-cooling tube, causes the most at last scrubbing-cooling tube scaling loss.Once scrubbing-cooling tube scaling loss, high-temperature synthesis gas may scaling loss scrubbing-cooling chamber housing or synthetic gas pipeline, causes serious accident, to this, takes the measure of chain jumping car to guarantee the security of gasification installation in engineering.In fact, this class phenomenon is of common occurrence on the air-flow bed coal-gasification device of existing chilling process, as can be seen here, scrubbing-cooling tube ablation is to affect one of important factor of vapourizing furnace long period, safety, steady running, is badly in need of the new technique means of invention and solves such problem.
In order to adapt to the ature of coal fluctuation in gasifier operation process, resist the disadvantageous effect that high-temperature synthesis gas bias current that the local accumulated slag of cinder notch causes produces scrubbing-cooling tube, avoid its damage and extend its work-ing life, realize the long-period stable operation of chilling process airflow bed gasification furnace, the utility model proposes the scrubbing-cooling tube that a kind of composite cooling apparatus replaces existing light-pipe structure.
Utility model content
The technical problems to be solved in the utility model is in order to overcome in prior art scrubbing-cooling tube in defects such as vapourizing furnace ature of coal fluctuation easy scaling loss during with unstable operation, work-ing life are shorter, a kind of composite cooling apparatus to be provided.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of composite cooling apparatus, it comprises a scrubbing-cooling tube, a washing and cooling ring for generation of Quench moisture film, its feature is, described composite cooling apparatus also comprises a cooling water jecket, and described cooling water jecket is sheathed on described scrubbing-cooling tube near one end of described washing and cooling ring.Described washing and cooling ring is adjacent with vaporizer cinder notch, is placed in the top of scrubbing-cooling tube, and chilled water forms Quench moisture film by washing and cooling ring.The existing scrubbing-cooling tube of this composite cooling apparatus inner side is protected from the Quench moisture film of washing and cooling ring; in addition also at the territory, high heat load area of scrubbing-cooling tube arranged outside one cooling water jecket; rely on the water coolant of forced-flow in cooling water jecket to carry out more efficiently protection to scrubbing-cooling tube, make it avoid damaging.
Preferably, be provided with volution baffle liner in described cooling water jecket, described volution baffle liner forms spiral flow channel in described cooling water jecket.Can improve like this water coolant flow velocity in cooling water jecket.
Preferably, the spacing between the adjacent inducer of described volution baffle liner is 5～200 millimeters.
Preferably, the bottom of described cooling water jecket is provided with a water-in.Water coolant flows out from the bottom of cooling water jecket, and flow out at top, can water coolant be taken away to cooling water jecket because of the bubble that the reasons such as high-temperature gasification produce along band like this.The water coolant that leaves cooling water jecket can enter washing and cooling ring or flow directly into scrubbing-cooling chamber space.The water coolant that cooling water jecket is used can comprise the buck that pulp water treatment system returns, phlegma or de-oxygenised water, the fresh water etc. that follow-up system (as transformation system, purification system and synthesis system etc.) returns.
Preferably, the length of described scrubbing-cooling tube is 0.5～10 meter.The internal diameter of scrubbing-cooling tube is determined by the crude synthesis gas entering and slag flow (being operational load).
Preferably, the preferred length of described scrubbing-cooling tube is 1.5～8 meters.
Preferably, the length of described cooling water jecket is 0.5～7.5 meter.
Preferably, the preferred length of described cooling water jecket is 0.5～6 meter.
Preferably, the spacing between the inwall of described cooling water jecket and the outer wall of described scrubbing-cooling tube is 5～100 millimeters.Described cooling water jecket is a cylindrical structure.Can select common tube material.
Preferably, described scrubbing-cooling tube arranges gaseous equilibrium mouth away from one end of described washing and cooling ring, and the lower edge of described scrubbing-cooling tube arranges the gas distributor of profile of tooth.Can realize out like this crude synthesis gas uniform of scrubbing-cooling tube.Go out the crude synthesis gas of scrubbing-cooling tube and go out scrubbing-cooling chamber after the bubbling of scrubbing-cooling chamber liquid phase principal space, gas-liquid separation.
Preferably, between described cooling water jecket and described scrubbing-cooling tube for being welded to connect or flange is connected, between described washing and cooling ring and described scrubbing-cooling tube for being welded to connect or flange is connected.
Positive progressive effect of the present utility model is: composite cooling apparatus of the present utility model passes through at territory, scrubbing-cooling tube high heat load area arranged outside cooling water jecket, can effectively avoid the damage of this region scrubbing-cooling tube, make scrubbing-cooling tube be applicable to harsher ambiance, extend its work-ing life, the stability of powerful guarantee chilling process gasification installation operation.And, also can further reduce the material grade of scrubbing-cooling tube, save the manufacturing cost of scrubbing-cooling tube.
Accompanying drawing explanation
Fig. 1 is the sectional view of the composite cooling apparatus of the utility model preferred embodiment.
Embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
As seen from Figure 1, composite cooling apparatus of the present utility model comprises washing and cooling ring 1, scrubbing-cooling tube 2 and gas distributor 3, coaxial connection of medullary ray arranges from top to bottom successively, and cooling water jecket 4 is positioned at scrubbing-cooling tube 2 outsides, high heat load region (middle and upper part), coaxially arranged.
Go out vaporizer high temperature, high pressure, containing crude synthesis gas and the slag of molten slag, with the speed of 5～30m/s, pass through cinder notch, by way of washing and cooling ring 1, cocurrent flow descending together with the Quench moisture film forming with washing and cooling ring 1, enters the Quench that scrubbing-cooling tube 2 carries out synthetic gas and slag.
Scrubbing-cooling tube 2 joins with washing and cooling ring 1.The length of scrubbing-cooling tube 2 is 0.5～10m, and preferred length is 1.5～8.0m; Its internal diameter is determined by operational load optimization.
Cooling water jecket 4 is positioned at the overseas side in high heat load area, middle and upper part of scrubbing-cooling tube 2, is a cylindrical structure, and length is 0.5～7.5m, preferred length 0.5～6.0m.Spacing between the outer wall of the inwall of cooling water jecket 4 and scrubbing-cooling tube 2 is 5～100mm, and volution baffle liner 5 is inside set, and volution baffle liner 5 is at the interior formation spiral flow channel 6 of cooling water jecket 4.In cooling water jecket 4 bottoms, one water-in 7 is set, the cooling liquid state water that leaves cooling water jecket 4 enters washing and cooling ring 1 or flows directly into scrubbing-cooling chamber space.The interior water coolant speed of cooling water jecket 4 is 1～8m/s, and preferred speed is 2～5m/s.Cooling water jecket 4 adopts common tubing.
Crude synthesis gas after Quench is uniform by the gaseous equilibrium mouth 8 of scrubbing-cooling tube 2 bottoms and the profile of tooth gas distributor 3 of lower edge, enters the liquid phase principal space bubbling of scrubbing-cooling chamber, then after gas-liquid separation, goes out scrubbing-cooling chamber.
And the mutual employing of gas distributor 3 is welded to connect or flange is connected for washing and cooling ring 1, scrubbing-cooling tube 2.Scrubbing-cooling tube 2 and cooling water jecket 4 mutually adopts and is welded to connect or flange is connected.
With composite cooling apparatus of the present utility model, in actually operating, be applied as example below, be illustrated:
One day was processed the chilling process single nozzle fine coal gasification furnace of pressurized aerated bed of 1500 tons of coals, and the pressure that goes out the high-temperature crude synthesis gas of vaporizer is 4.0MPa, and temperature is 1500 ℃, flow 19267m
3/ h, slag inclusion 13452kg/h.Adopt composite cooling apparatus of the present utility model, the internal diameter of washing and cooling ring 1 is 1140mm, and the flow of chilled water is 500m
3/ h.Scrubbing-cooling tube 2 internal diameters are 1248mm, and scrubbing-cooling tube 2 length are 8.0m, material selection 316L or Incoloy825.Cooling water jecket 4 length are 2.0m, adopt common stainless steel material.Water by cooling water jecket 4 is the de-oxygenised water of pressurization, flow 30m
3/ h, enters scrubbing-cooling chamber space after leaving cooling jacket.Scrubbing-cooling tube 2 adopts the mode of connection of welding with cooling water jecket 4.Approximately 221 ℃ of the crude synthesis gas temperature of leaving by the gaseous equilibrium mouth 8 of scrubbing-cooling tube 2 bottoms and the profile of tooth gas distributor 3 of lower edge.When the operation operating modes such as this composite cooling apparatus can change in gasification ature of coal, the local accumulated slag of vapourizing furnace cinder notch worsen, protection scrubbing-cooling tube is not subject to ablation, extends its work-ing life.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection domain of the present utility model.
Claims (9)
1. a composite cooling apparatus, it comprises a scrubbing-cooling tube, a washing and cooling ring for generation of Quench moisture film, it is characterized in that, described composite cooling apparatus also comprises a cooling water jecket, and described cooling water jecket is sheathed on described scrubbing-cooling tube near one end of described washing and cooling ring.
2. composite cooling apparatus as claimed in claim 1, is characterized in that, is provided with volution baffle liner in described cooling water jecket, and described volution baffle liner forms spiral flow channel in described cooling water jecket.
3. composite cooling apparatus as claimed in claim 2, is characterized in that, the spacing between the adjacent inducer of described volution baffle liner is 5～200 millimeters.
4. composite cooling apparatus as claimed in claim 1, is characterized in that, the bottom of described cooling water jecket is provided with a water-in.
5. composite cooling apparatus as claimed in claim 1, is characterized in that, the length of described scrubbing-cooling tube is 0.5～10 meter.
6. composite cooling apparatus as claimed in claim 1, is characterized in that, the length of described cooling water jecket is 0.5～7.5 meter.
7. composite cooling apparatus as claimed in claim 1, is characterized in that, the spacing between the inwall of described cooling water jecket and the outer wall of described scrubbing-cooling tube is 5～100 millimeters.
8. composite cooling apparatus as claimed in claim 1, is characterized in that, described scrubbing-cooling tube arranges gaseous equilibrium mouth away from one end of described washing and cooling ring, and the lower edge of described scrubbing-cooling tube arranges the gas distributor of profile of tooth.
9. the composite cooling apparatus as described in any one in claim 1-8, it is characterized in that, between described cooling water jecket and described scrubbing-cooling tube for being welded to connect or flange is connected, between described washing and cooling ring and described scrubbing-cooling tube for being welded to connect or flange is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620687.XU CN203545957U (en) | 2013-10-09 | 2013-10-09 | Composite cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320620687.XU CN203545957U (en) | 2013-10-09 | 2013-10-09 | Composite cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203545957U true CN203545957U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320620687.XU Withdrawn - After Issue CN203545957U (en) | 2013-10-09 | 2013-10-09 | Composite cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203545957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497787A (en) * | 2013-10-09 | 2014-01-08 | 华东理工大学 | Combined cooling device |
| CN104668022A (en) * | 2015-03-04 | 2015-06-03 | 余庆县农田米业有限公司 | Processing and cooling device for reducing rate of broken rice |
-
2013
- 2013-10-09 CN CN201320620687.XU patent/CN203545957U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497787A (en) * | 2013-10-09 | 2014-01-08 | 华东理工大学 | Combined cooling device |
| CN103497787B (en) * | 2013-10-09 | 2015-09-23 | 华东理工大学 | Composite cooling apparatus |
| CN104668022A (en) * | 2015-03-04 | 2015-06-03 | 余庆县农田米业有限公司 | Processing and cooling device for reducing rate of broken rice |
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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: 20140416 Effective date of abandoning: 20150923 |
|
| RGAV | Abandon patent right to avoid regrant |