CN102032545A - Sensible-heat waste heat recycling device with special heating surface structure - Google Patents
Sensible-heat waste heat recycling device with special heating surface structure Download PDFInfo
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- CN102032545A CN102032545A CN2010105499874A CN201010549987A CN102032545A CN 102032545 A CN102032545 A CN 102032545A CN 2010105499874 A CN2010105499874 A CN 2010105499874A CN 201010549987 A CN201010549987 A CN 201010549987A CN 102032545 A CN102032545 A CN 102032545A
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- spiral coil
- socket assembly
- heating surface
- bearing shell
- standpipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention discloses a sensible-heat waste heat recycling device with a special heating surface structure. In the coal chemical industry and an integrated gasification combined cycle (IGCC) system, raw gas produced from raw coal by a gasification furnace generally has high temperature. The recycling device consists of a pressure bearing shell (1) with an inlet pipeline and an outlet pipeline, wherein a pipe barrel component (7) is arranged in the pressure bearing shell; the upper end of the pipe barrel component is connected with an upper tube panel header (8) and a raw gas connecting pipe (10), and the lower end of the pipe barrel component is connected with a lower tube panel header (9); the pipe barrel component comprises a spiral coil bundle (4); and one end of the spiral coil bundle is connected with an upper evaporation heating surface header (5), and the other end of the spiral coil bundle is connected with a lower evaporation heating surface header (6). The recycling device is used for recycling a large amount of sensible heat energy in the coal chemical industry and the IGCC system.
Description
Technical field:
The present invention relates to a kind of field of boilers, be specifically related to the device that carries out the sensible heat waste heat recovery by extraordinary heated face structure in a kind of Coal Chemical Industry industry and the Integrated gasification combined cycle IGCC system.
Background technology:
In Coal Chemical Industry industry and Integrated gasification combined cycle IGCC system, raw coal generally all has higher temperature through the raw gas that gasification furnace produces, and according to coal gasification mode difference, the temperature that generally exports synthesis gas is about 1000～1500 ℃.Gas pressure generally between 0.3～0.5MPa, contains a large amount of dust in this part coal gas, under the current techniques condition, gas purifying method is still the low temperature wet cleaning reliably.Therefore reduce gas temperature, reclaiming its a large amount of sensible heats that contain can be the important means that improves energy conversion efficiency.Because the particularity of this coal gas, cement sensible heat recovery system is very complicated, waste gas residual heat recovery China for high pressure does not also have ripe experience, the heat that how can effectively reclaim this part coal gas reduces temperature of gas, the heating surface of selecting to be fit to reclaim this waste heat is particularly important, flue-gas temperature is reduced to 300 ℃ of modes that adopt convection heating surface usually from 600 ℃, in order to realize the safety of boiler heating surface, guarantee boiler can be under external pressure 0.3～0.5MPa pressure steady operation, the entire arrangement thinking of heating surface is different from conventional boiler greatly, and is especially more other in the conventional treatment mode aspect treatment of details.
Summary of the invention:
The purpose of this invention is to provide the sensible heat waste heat of the synthesis gas of the big direct draught of a kind of effective recovery, flue-gas temperature is reduced to 300 ℃, the sensible heat waste-heat recovery device from 600 ℃.
Above-mentioned purpose realizes by following technical scheme:
The sensible heat waste-heat recovery device of extraordinary heated face structure, its composition comprises: have the pressure-bearing shell of importing and exporting pipeline, the socket assembly is housed in the described pressure-bearing shell, described socket assembly upper end connects the tube panel upper collecting chamber, described socket assembly lower end connects tube panel next part case, described socket assembly upper end one side connects the raw gas tube connector, described socket assembly comprises the spiral coil tube bank, described spiral coil is restrained an end and is connected the evaporating heating surface upper collecting chamber, and the described spiral coil tube bank other end connects evaporating heating surface next part case.
The sensible heat waste-heat recovery device of described extraordinary heated face structure, described socket assembly comprises one group of standpipe that be arranged in parallel, the bracing frame of described spiral coil is a coiled pipe, described bracing frame and described socket are connected and fixed, connect by connecting plate between the described standpipe, described standpipe is connected with taking over, and described adapter is arranged on the socket assembly upper portion side wall and corresponding with it respectively standpipe communicates.
The sensible heat waste-heat recovery device of described extraordinary heated face structure, described raw gas tube connector is connected with the outside end face of the tubular that described adapter surrounds, on the pipe side wall of described spiral coil tube bank dedusting and flapping device is housed, described pressure-bearing shell lower end one side is provided with inspection manhole.
Beneficial effect:
1. the present invention utilizes waste gas residual heat boiler to produce the useless pot of convection current of saturated vapor; Can effectively improve the operational percentage of Integrated gasification combined cycle IGCC system.Adopt the convection heating surface structure of special spiral coil form, this heated face structure is applicable to the flue gas that the high pressure dust content is big, can effectively utilize the characteristics of heating surface, strengthens heat transfer efficiency.
2. boiler heating surface structural elasticity of the present invention is beneficial to deashing well, and the heat transfer coefficient of heat-transfer area is big.Raw gas enters in the polygon inner chamber of socket assembly through the raw gas tube connector, the temperature of the raw gas of raw gas tube connector inlet is about 500～700 ℃, raw gas flows downward along polygonal socket assembly inner chamber afterwards, with spiral coil tube bank in the spiral coil tube bank and the water heating in the standpipe on the socket assembly, temperature reaches capacity, last raw gas is discharged from the pressure-bearing outlet of pressure-bearing shell lower end, and temperature is reduced to about 350 ℃, flows to the raw gas purifying system.System's feedwater enters tube panel next part case by feedwater piping respectively, the distribution of tube panel next part case enters each standpipe and upwards carries out heat exchange, enter the tube panel upper collecting chamber, enter drum through the steam fairlead, unsaturated water enters evaporating heating surface next part case through down-comer and enters each spiral coil tube bank upwards carrying out heat exchange that spiral coil is restrained, unsaturated water under the undersaturation parameter is heated to saturation temperature, sends into saturated vapor by drum at last and enter main steam line.
3. the present invention is simple in structure, compact, soldered is few, flow velocity is fast, the time of staying is short, compares with other forms of waste heat boiler, and the metal wastage of its unit heat exchange area is less, and the media operation condition of adaptation is comparatively extensive.
4. the working media in the spiral coil tube bank of bottom of the present invention is a water, and its temperature can increase the heating surface area of spiral coil tube bank less than the saturation temperature under its operating pressure, and steam exit temperature is raise, and temperature reaches capacity.
5. floor space of the present invention and volume are less, and the dust stratification of boiler and wearing and tearing are lighter.
Description of drawings:
Accompanying drawing 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.Fig. 3 is the B-B cutaway view of Fig. 1.
Fig. 4 is the profile of taking among Fig. 1.
The specific embodiment:
Embodiment 1:
A kind of sensible heat waste-heat recovery device of extraordinary heated face structure, its composition comprises: pressure-bearing shell 1, described pressure-bearing shell 1 lower end connects pressure-bearing outlet 2, socket assembly 7 is housed in the described pressure-bearing shell, described socket assembly upper end connects tube panel upper collecting chamber 8, described socket assembly lower end connects tube panel next part case 9, described socket assembly upper end connects raw gas tube connector 10, described socket assembly comprises at least two group spiral coils tube bank 4, described spiral coil is restrained an end and is connected evaporating heating surface upper collecting chamber 5, and the described spiral coil tube bank other end connects evaporating heating surface next part case 6.
Embodiment 2:
The sensible heat waste-heat recovery device of extraordinary heated face structure, it is characterized in that: described socket assembly comprises one group of standpipe that be arranged in parallel 13, the bracing frame 11 of described spiral coil is a coiled pipe, described bracing frame and described socket 7 are connected and fixed, connect by connecting plate 14 between the described standpipe, described standpipe is connected with adapter 15, and described adapter is arranged on the socket assembly upper portion side wall and corresponding with it respectively standpipe communicates.Described pressure-bearing shell lower end one side is provided with inspection manhole 3,
In the described spiral coil tube bank working media is housed, described working media is the carbonated drink two-phase medium.
Embodiment 3:
The sensible heat waste-heat recovery device of extraordinary heated face structure adopts the pattern with two kinds of spiral coil tube banks.Pressure-bearing outlet conduit 2 is arranged on the outer wall of pressure-bearing shell 1 bottom, and with the pressure-bearing shell internal communication, the outer wall of pressure-bearing shell bottom is provided with inspection manhole 3; The socket assembly is made up of several standpipes 13, several connecting plates 14 and several adapters 15.Several standpipes 13 be arranged in parallel, surround hexagon by several standpipes, connect by connecting plate 14 between two adjacent standpipes, and several adapters 15 are arranged on the one side sidewall of socket assembly top and corresponding with it respectively standpipe communicates.Socket assembly 7 is arranged in the pressure-bearing shell 1, and the tube panel upper collecting chamber is provided with 8 in the upper end of socket assembly 7, and tube panel next part case 9 is arranged on the lower end of socket assembly 7.At least two group spiral coils tube bank 4 is vertically set in the cylindrical cavity of socket assembly, the tube bank of at least one group of spiral coil is arranged on the bottom in the cylindrical cavity of socket assembly 7, and at least one group of spiral coil tube bank is arranged on the top in the cylindrical cavity of socket assembly.Two evaporating heating surface upper collecting chambers are arranged on the upper end of spiral coil tube bank, and two evaporating heating surface next part casees are arranged on the lower end of spiral coil tube bank.Wherein the upper end of one group of spiral coil tube bank is communicated with an evaporating heating surface upper collecting chamber and the lower end is communicated with an evaporating heating surface next part case; The upper end of another group spiral coil tube bank is communicated with another evaporating heating surface upper collecting chamber and the lower end is communicated with another evaporating heating surface next part case, the raw gas tube connector is connected with the outside end face of the tubular that several adapters surround, several coiled pipes are connected with the socket assembly, are used to carry the weight of spiral coil tube bank.Be filled with working media in above-mentioned spiral coil tube bank and the coiled pipe.
Pressure-bearing shell is a pressure-bearing sealing structure, bears pressure＞4.0MPa.Tube panel upper collecting chamber and tube panel next part case and socket assembly constitute independently water loop; Two evaporating heating surface upper collecting chambers and two evaporating heating surface next part casees and spiral coil tube bank constitute independently water loop; During use, the tube panel upper collecting chamber is communicated with drum by jet chimney, tube panel next part case is connected with feedwater piping by pipeline, two evaporating heating surface next part casees are connected with down-comer, two evaporating heating surface upper collecting chambers are communicated with drum by other introduction pipe, and two evaporating heating surface next part casees are communicated with drum by jet chimney.Water in the spiral coil tube bank flows from the bottom to top, directly enters two evaporating heating surface upper collecting chambers.The working medium of socket assembly inner chamber is raw gas, and the working medium of the inner chamber that socket assembly outer wall and pressure-bearing shell inwall form is nitrogen, and the temperature of raw gas is higher than the temperature of nitrogen.
Inspection manhole is convenient to maintenance in time with the removal system fault.Working media temperature in the socket assembly is equal to or less than the saturation temperature of the operating pressure correspondence of working medium in the spiral coil tube bank.
Embodiment 4:
The sensible heat waste-heat recovery device of embodiment 1 or 2 or 3 described extraordinary heated face structures, the working media in the tube bank of described group spiral coil down is a water, its temperature is less than the saturation temperature under its operating pressure.Design can increase the heating surface area of spiral coil tube bank like this, and steam exit temperature is raise, and temperature reaches capacity.
Claims (3)
1. the sensible heat waste-heat recovery device of an extraordinary heated face structure, its composition comprises: have the pressure-bearing shell of importing and exporting pipeline, it is characterized in that: the socket assembly is housed in the described pressure-bearing shell, described socket assembly upper end connects the tube panel upper collecting chamber, described socket assembly lower end connects tube panel next part case, described socket assembly upper end one side connects the raw gas tube connector, described socket assembly comprises the spiral coil tube bank, described spiral coil is restrained an end and is connected the evaporating heating surface upper collecting chamber, and the described spiral coil tube bank other end connects evaporating heating surface next part case.
2. the sensible heat waste-heat recovery device of extraordinary heated face structure according to claim 1, it is characterized in that: described socket assembly comprises one group of standpipe that be arranged in parallel, the bracing frame of described spiral coil is a coiled pipe, described bracing frame and described socket are connected and fixed, connect by connecting plate between the described standpipe, described standpipe is connected with taking over, and described adapter is arranged on the socket assembly upper portion side wall and corresponding with it respectively standpipe communicates.
3. the sensible heat waste-heat recovery device of extraordinary heated face structure according to claim 2, it is characterized in that: described raw gas tube connector is connected with the outside end face of the tubular that described adapter surrounds, on the pipe side wall of described spiral coil tube bank dedusting and flapping device is housed, described pressure-bearing shell lower end one side is provided with inspection manhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105499874A CN102032545A (en) | 2010-11-18 | 2010-11-18 | Sensible-heat waste heat recycling device with special heating surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105499874A CN102032545A (en) | 2010-11-18 | 2010-11-18 | Sensible-heat waste heat recycling device with special heating surface structure |
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| Publication Number | Publication Date |
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| CN102032545A true CN102032545A (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105499874A Pending CN102032545A (en) | 2010-11-18 | 2010-11-18 | Sensible-heat waste heat recycling device with special heating surface structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807842A (en) * | 2014-02-24 | 2014-05-21 | 华强化工集团股份有限公司 | Coal gas waste heat recycling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328007A (en) * | 1979-08-21 | 1982-05-04 | Deutsche Babcock Aktiengesellschaft | Apparatus for gasification of fine-grain coal |
| CN101280912A (en) * | 2008-05-09 | 2008-10-08 | 包头博特科技有限责任公司 | Heat tube bundle concentric casing tube waste heat recovery boiler |
| CN101581446A (en) * | 2009-06-18 | 2009-11-18 | 哈尔滨工业大学 | Convective waste heat boiler for generating superheated steam |
| CN202048555U (en) * | 2010-11-18 | 2011-11-23 | 哈尔滨锅炉厂有限责任公司 | Sensible heat afterheat recycling device with special heating surface structure |
-
2010
- 2010-11-18 CN CN2010105499874A patent/CN102032545A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328007A (en) * | 1979-08-21 | 1982-05-04 | Deutsche Babcock Aktiengesellschaft | Apparatus for gasification of fine-grain coal |
| CN101280912A (en) * | 2008-05-09 | 2008-10-08 | 包头博特科技有限责任公司 | Heat tube bundle concentric casing tube waste heat recovery boiler |
| CN101581446A (en) * | 2009-06-18 | 2009-11-18 | 哈尔滨工业大学 | Convective waste heat boiler for generating superheated steam |
| CN202048555U (en) * | 2010-11-18 | 2011-11-23 | 哈尔滨锅炉厂有限责任公司 | Sensible heat afterheat recycling device with special heating surface structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807842A (en) * | 2014-02-24 | 2014-05-21 | 华强化工集团股份有限公司 | Coal gas waste heat recycling device |
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Application publication date: 20110427 |