CN202709154U - Waste heat recovery device in high-pressure smoke state - Google Patents
Waste heat recovery device in high-pressure smoke state Download PDFInfo
- Publication number
- CN202709154U CN202709154U CN 201220338360 CN201220338360U CN202709154U CN 202709154 U CN202709154 U CN 202709154U CN 201220338360 CN201220338360 CN 201220338360 CN 201220338360 U CN201220338360 U CN 201220338360U CN 202709154 U CN202709154 U CN 202709154U
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- Prior art keywords
- flue
- pressure
- superheater
- recovery device
- heat recovery
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Abstract
The utility model discloses a waste heat recovery device in a high-pressure smoke state, which comprises a flue, wherein a superheater and an economizer are arranged in the flue, the waste heat recovery device is characterized in that the flue is a cylindrical pressure-bearing shell made of a hydrogen-resistant steel plate, a fire-resistant casting material is casted in an inner cylinder of the flue, the flue is vertically arranged, a fire pipe evaporator, a primary high-pressure superheater, a lower-pressure superheater, a secondary high-pressure superheater and the economizer are sequentially arranged from top to bottom, a flying ash filter is finally arranged, and a man hole and an ash blowing device are arranged between equipment. A structure of an ordinary boiler superheater and economizer serves as a heat exchanger device, a pressure shell is externally arranged so as to ensure heat exchange of high-pressure gas within an effective range, and the waste heat recovery device is simple in structure and low in investment cost, and has short manufacturing period.
Description
Technical field
The utility model relates to the UTILIZATION OF VESIDUAL HEAT IN field, relates in particular to the waste-heat recovery device under a kind of coal chemical technology high pressure smoke behavior.
Background technology
Boiler is lower at the pressure of UTILIZATION OF VESIDUAL HEAT IN field fume side at present, the highest also only have 3.3kPa, but the Coal Chemical Industry industry is because the coal gasification pressure and temperature is higher, cause the waste heat boiler of afterbody energy recovery to want to bear the hyperbaric environment (1.0MPa) of fume side, common boiler plant square flue backplate does not satisfy requirement, and the environment that needs a kind of novel structure can bear high pressure can reclaim heat again.Waste heat boiler be used for to reclaim high temperature (about the 1000 ℃) gas energy of gasification furnace, produces the external 1.6MPa saturated vapor to 400 in 4.0MPa, 450 ℃ of superheated steams and overheated battery limit (BL) and ℃ is used for the system process process.
Domestic the structure of inner concentric cylinder water-cooling wall uses not only technology transfer expense of this kind structure high for the external external pressure shell of the frequent employing of this structure, and complex structure equipment is long, and the large manufacturing cycle of technology difficulty is long, and cost of investment is very high.
Summary of the invention
The utility model mainly is to solve the existing deficiency of prior art, thereby develops the waste-heat recovery device under a kind of high pressure smoke behavior, to reach the purpose of 1000 ℃ of left and right sides of effective recovery high-temperature flue gas energy.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the waste-heat recovery device under a kind of high pressure smoke behavior, has flue, superheater is arranged in the flue, economizer, it is characterized in that: described flue is the cylindrical shape pressure-bearing shell that anti-hydrogen steel plate is made, the flue inner core is cast with fire-resistant casting material, described flue vertical, be sequentially set with from top to down fire tube evaporimeter, one-level high-pressure superheater, low-pressure superheater, secondary high-pressure superheater, economizer, enter at last fly-ash filter; Be provided with manhole and soot blower between described each equipment.
The technical solution of the utility model can also be further perfect:
As preferably, described fire tube evaporimeter comprises heat exchanger tube and upper and lower tube sheet, and described heat exchanger tube is straight shape heat exchanger tube, and described upper and lower tube sheet adopts the flexible thin tube plate structure, and excessive section of circular arc is set, and absorbs the thermal expansion difference of pipe and housing.
As preferably, described fire tube evaporimeter is and is in tilted layout, to utilize the peak exhaust, to prevent the steam dead band; The porch of upper perforated plate and heat exchanger tube adopts thermal sleeve to carry out thermal protection, and is laid with the plastic refractory of one deck protection front tube sheet at tube sheet, avoids the impact of high temperature gas flow.
As preferably, described superheater and economizer adopt coiled pipe, and be horizontally disposed in flue.
The utility model beneficial effect is:
1, the structure of using plain cylindrical furnace superheater, economizer is as heat exchange unit device, and outer installing pressure housing is effectively carrying out heat exchange in the scope to guarantee gases at high pressure.
2, the effective heat of the high pressure-temperature gas of gas recovery generation, by-product superheated steam and saturated vapor; 3, simple in structure, the manufacturing cycle is short, and cost of investment is low.
Description of drawings
Accompanying drawing 1 is that a kind of equipment of the present utility model consists of schematic diagram.
Description of reference numerals: 1, flue, 2, the fire tube evaporimeter, 3, the one-level high-pressure superheater, 4, low-pressure superheater, 5, the secondary high-pressure superheater, 6, economizer.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment:
Waste-heat recovery device under the high pressure smoke behavior as shown in Figure 1, has flue 1, described flue is the cylindrical shape pressure-bearing shell that anti-hydrogen steel plate is made, the flue inner core is cast with fire-resistant casting material, described flue 1 vertical, be sequentially set with from top to down fire tube evaporimeter 2, one-level high-pressure superheater 2, low-pressure superheater 4, secondary high-pressure superheater 5, economizer 6, enter at last fly-ash filter; Be provided with manhole and soot blower between described each equipment, described high-low pressure superheater comprises the spray desuperheating device.
This device utilizes the synthesis gas waste heat to produce 4.0MPa(G), 450 ℃ steam is used for the steam turbine acting, except steaming, also is that the saturated vapor of 40000kg/hr is superheated to 400 ℃ with 1.6MPa (g) flow.
Fire tube evaporimeter 2 is comprised of many straight shape heat exchanger tubes, and flue gas is walked in the pipe, manages outer saturation water absorption heat and changes saturated vapor into, and flue gas, water are at the inside and outside countercurrent flow of pipe.Tube sheet adopts the flexible thin tube plate structure, and excessive section of circular arc is set, and absorbs the thermal expansion difference of pipe and housing.Evaporimeter is and is in tilted layout, and utilizes the peak exhaust, to prevent the steam dead band.The porch of upper perforated plate and heat exchanger tube is because heat radiation and the thermal shock of high-temperature gas; be easy to cause the inefficacy of tube sheet cracking and welding point; therefore adopt thermal sleeve to carry out thermal protection, and lay one deck plastic refractory protection front tube sheet at tube sheet, avoid the impact of high temperature gas flow.
One-level high-pressure superheater 3 is comprised of snakelike heat exchange tube, totally 8 loops, and every loop is comprised of 3 array of pipes.
Low-pressure superheater 4 is comprised of snakelike heat exchange tube, totally 9 loops, and every loop is comprised of 3 array of pipes.The saturated vapor that is used for adding heat flow and is 204 ℃ is superheated to 400 ℃.
Secondary high-pressure superheater 5 is comprised of snakelike heat exchange tube, totally 20 loops, and every loop is comprised of 3 array of pipes.
Economizer 6 also is comprised of snakelike heat exchange tube, totally 60 row 35 rows.
Manhole and soot blower are set between each equipment, utilize soot blower to carry out regular purging, to prevent cigarette ash scale effect heat transfer effect.
Claims (4)
1. the waste-heat recovery device under the high pressure smoke behavior, has flue, superheater is arranged in the flue, economizer, it is characterized in that: described flue is the cylindrical shape pressure-bearing shell that anti-hydrogen steel plate is made, the flue inner core is cast with fire-resistant casting material, and described flue vertical is sequentially set with fire tube evaporimeter, one-level high-pressure superheater, low-pressure superheater, secondary high-pressure superheater, economizer, fly-ash filter from top to down; Be provided with manhole and soot blower between described each equipment.
2. the waste-heat recovery device under the high pressure smoke behavior according to claim 1, it is characterized in that: described fire tube evaporimeter comprises heat exchanger tube and upper and lower tube sheet, described heat exchanger tube is straight shape heat exchanger tube, and described upper and lower tube sheet adopts the flexible thin tube plate structure, and excessive section of circular arc is set.
3. the waste-heat recovery device under the high pressure smoke behavior according to claim 2; it is characterized in that: described fire tube evaporimeter is and is in tilted layout; the porch of described upper perforated plate and heat exchanger tube adopts thermal sleeve to carry out thermal protection, is laid with the plastic refractory of one deck protection front tube sheet on the tube sheet.
4. according to claim 1 and 2 or the waste-heat recovery device under the 3 described high pressure smoke behaviors, it is characterized in that: described superheater and economizer adopt coiled pipe, and be horizontally disposed in flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220338360 CN202709154U (en) | 2012-07-13 | 2012-07-13 | Waste heat recovery device in high-pressure smoke state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220338360 CN202709154U (en) | 2012-07-13 | 2012-07-13 | Waste heat recovery device in high-pressure smoke state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709154U true CN202709154U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220338360 Expired - Lifetime CN202709154U (en) | 2012-07-13 | 2012-07-13 | Waste heat recovery device in high-pressure smoke state |
Country Status (1)
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| CN (1) | CN202709154U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353107A (en) * | 2013-07-22 | 2013-10-16 | 清华大学 | Device capable of obtaining superheated steam from high-temperature high-pressure gas |
| CN103353102A (en) * | 2013-07-22 | 2013-10-16 | 清华大学 | Device capable of exchanging heat with high-temperature high-pressure gas |
| CN107062176A (en) * | 2017-04-22 | 2017-08-18 | 天华化工机械及自动化研究设计院有限公司 | Overheat of steaming Integral vertical thin tubesheet waste heat recovery plant |
| CN107091471A (en) * | 2017-04-22 | 2017-08-25 | 天华化工机械及自动化研究设计院有限公司 | Coke pressure gasification process coal gas heat energy recovering method |
| CN109338030A (en) * | 2018-11-30 | 2019-02-15 | 中冶南方工程技术有限公司 | A kind of converter gas dedusting and residual neat recovering system and method |
-
2012
- 2012-07-13 CN CN 201220338360 patent/CN202709154U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353107A (en) * | 2013-07-22 | 2013-10-16 | 清华大学 | Device capable of obtaining superheated steam from high-temperature high-pressure gas |
| CN103353102A (en) * | 2013-07-22 | 2013-10-16 | 清华大学 | Device capable of exchanging heat with high-temperature high-pressure gas |
| CN107062176A (en) * | 2017-04-22 | 2017-08-18 | 天华化工机械及自动化研究设计院有限公司 | Overheat of steaming Integral vertical thin tubesheet waste heat recovery plant |
| CN107091471A (en) * | 2017-04-22 | 2017-08-25 | 天华化工机械及自动化研究设计院有限公司 | Coke pressure gasification process coal gas heat energy recovering method |
| CN109338030A (en) * | 2018-11-30 | 2019-02-15 | 中冶南方工程技术有限公司 | A kind of converter gas dedusting and residual neat recovering system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310004 No. 245 Dong Xin Road, Xiacheng District, Zhejiang, Hangzhou Patentee after: Xizi clean energy equipment manufacturing Co.,Ltd. Address before: 310004 No. 245 Dong Xin Road, Xiacheng District, Zhejiang, Hangzhou Patentee before: HANGZHOU BOILER GROUP Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |