CN204226019U - Compact type regenerator - Google Patents
Compact type regenerator Download PDFInfo
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- CN204226019U CN204226019U CN201420654360.9U CN201420654360U CN204226019U CN 204226019 U CN204226019 U CN 204226019U CN 201420654360 U CN201420654360 U CN 201420654360U CN 204226019 U CN204226019 U CN 204226019U
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Abstract
The utility model proposes compact type regenerator.The gas exhaust piping of simple cycle gas turbine engine increases a compact type regenerator, this regenerator adopts plate-fin heat exchanger pattern, adopt reflux type heat exchange, pressurized air is heated by the high-temperature fuel gas that gas turbine is discharged, improve the heat exchange efficiency of regenerator, compact structure, the pressure loss of medium in regenerator is less, has higher reliability and fatigue resistance.There is the regenerative cycle gas turbine of compact type regenerator, it not only utilizes regenerator to reclaim the exhaust heat of gas turbine, like this to after pressurized air preheating, decreases the consumption of fuel, but also improve simple gas turbine efficiency and than merit, thus improve the performance of simple gas turbine.
Description
Technical field
The utility model relates to gas turbine technology field, specifically a kind of compact type regenerator.
Background technique
No matter be as Mechanical Driven gas turbine, or as generating gas turbine, simple cycle gas turbine engine is by gas compressor, firing chamber and the large parts composition of turbine three, it can be regarded as and can continuously produce the unit with certain pressure and temperature combustion gas, because the fuel gas temperature of discharging from Gas Turbine is higher, a large amount of gas turbine waste heats has been slatterned in vain, in order to improve the efficiency of simple cycle gas turbine engine, increase it and compare merit, by selection optimum pressure ratio and the method improving warm ratio as much as possible, the efficiency of gas turbine can only be made and reach certain degree than merit, so its efficiency and just must fundamentally by changing its thermodynamic cycle to realize than merit will be improved further, the method of one of them is exactly: in order to reduce heating load, utilize regenerator to reclaim the exhaust heat of gas turbine, resulting in a kind of regenerative cycle gas turbine, the air compressed by gas compressor before entering into the combustion chamber, the high-temperature fuel gas of first being discharged by turbine in regenerator heats, like this to after pressurized air preheating, just can reduce the consumption of fuel, thus play the effect improving thermal efficiency of gas turbine, in fact, regenerator is the heat exchanger that a pressurized air and high-temperature fuel gas carry out heat exchange, because combustion turbine exhaustion temperature is higher, the thermal stress that gas exhaust piping is subject to is very large, and thermal distortion is also larger, this brings a lot of difficulties to the structural design of gas turbine regenerator.According to the general requirement of regenerative cycle gas turbine, regenerator should adopt compact heat exchanger, it not only has higher heat exchange efficiency, the less pressure loss, compact structure and good technology capability, and higher reliability and fatigue resistance will be had, at present, the structural type of compact heat exchanger has fin-tube type heat exchanger, one-time surface formula heat exchanger, plate type heat exchanger, spiral-plate heat exchanger and plate-fin heat exchanger etc., the processing technology of fin-tube type heat exchanger is ripe, but its heat exchange efficiency is lower, and huge structure, be not suitable as the type selecting of gas turbine regenerator, it is high that one-time surface formula heat exchanger has heat exchange efficiency, compact structure, but due to its processing technology comparatively complicated, the reliability of coarse scale structures is poor, can only as the preferred structure of miniature gas turbine and small size gas turbine regenerator, it is high that plate-fin heat exchanger has heat exchange efficiency, and processing technology is comparatively ripe, but due to its structural design unreasonable, there is lower reliability and fatigue resistance.
Summary of the invention
The task of the utility model patent is to provide a kind of compact type regenerator, be arranged on combustion turbine exhaustion pipeline, the high-temperature fuel gas that the air compressed by gas compressor is first discharged by gas turbine before entering into the combustion chamber in regenerator heats, like this to after pressurized air preheating, just can reduce the consumption of fuel, thus play the effect improving thermal efficiency of gas turbine.
The technical solution of the utility model is: on the gas exhaust piping of simple cycle gas turbine engine, increase a compact type regenerator, this regenerator adopts plate-fin heat exchanger pattern, adopt reflux type heat exchange, pressurized air is heated by the high-temperature fuel gas that gas turbine is discharged, improve the heat exchange efficiency of regenerator, compact structure, the pressure loss of medium in regenerator is less, has higher reliability and fatigue resistance;
Compact type regenerator, comprise front end-plate and end plate, front end-plate, some heat exchange unit assemblings of end plate and several air side heat-exchange fins be arranged between two end plates and heat-exchange fin interval, combustion gas side superposition composition, soldering is carried out with brazing material, dividing plate is lined with between air side heat-exchange fin and combustion gas side heat-exchange fin, space between two dividing plates in the outside of air side heat-exchange fin and air side guide plate is filled by the air spacer ring being enclosed in air side heat-exchange fin and air side guide plate periphery, the both sides of combustion gas side heat-exchange fin and combustion gas side guide plate, space between two dividing plates is filled by strip of paper used for sealing,
Air side heat-exchange fin, combustion gas side heat-exchange fin, the fit outside cover of dividing plate and front end-plate and end plate superposition composition in the enclosure, shell is the tube structure of upper lower flange, the upper epitaxial lateral overgrowth of front end-plate stretches out an air intlet pipe through shell, the lower epitaxial lateral overgrowth of front end-plate stretches out an air outlet slit pipe through shell, the central position of air intlet pipe and air outlet slit pipe, front end-plate and dividing plate have and the through hole of air intlet pipe with diameter, this through hole is not opened on the dividing plate of end plate, on the central position of air intlet pipe and air outlet slit pipe, space between combustion gas side heat-exchange fin and combustion gas side guide plate is filled by combustion gas spacer ring,
Compact type regenerator is the structure adopting plate-fin heat exchanger, superpose soldering by multilayer combustion gas working medium runner and multi-tiered compression air working medium runner to form, each grate firing gas working medium small flow channels surrounded by two-layer dividing plate, combustion gas side heat-exchange fin, strip of paper used for sealing, combustion gas side guide plate and two combustion gas spacer rings, each layer of air working medium small flow channels surrounded by two-layer dividing plate, air side heat-exchange fin, air side guide plate and air spacer ring, and the runner dividing plate between often two-layer separates.
Outer casing inner wall is respectively equipped with stiffening rib with air outlet slit pipe lower position on the upside of air intlet pipe.
Air enters from air intlet pipe 8, is flowed out by air outlet slit pipe 7, and combustion gas enters regenerator by shell 13 bottom, is flowed out by shell 13 top.
Described heat exchange unit, replaces with multiple small-sized heat exchange unit superposition.
The utility model has following beneficial effect: owing to adopting technique scheme, achieve the regenerative cycle gas turbine with compact type regenerator, it not only utilizes regenerator to reclaim the exhaust heat of gas turbine, like this to after pressurized air preheating, decrease the consumption of fuel, but also improve simple gas turbine efficiency and than merit, thus improve the performance of simple gas turbine.
accompanying drawing illustrates:
Fig. 1 is transverse cross-sectional view of the present utility model;
Accompanying drawing 2 is C-C sectional drawings of accompanying drawing 1;
Accompanying drawing 3 is A-A sectional drawings of accompanying drawing 1;
Accompanying drawing 4 is B-B sectional drawings of accompanying drawing 1.
1-front end-plate in figure, 2-dividing plate, 3-air side heat-exchange fin, 4-combustion gas side heat-exchange fin, 5-air side guide plate, 6-combustion gas side guide plate, 7-air outlet slit pipe, 8-air intlet pipe, 9-strip of paper used for sealing, 10-air spacer ring, 11-stiffening rib, 12-combustion gas spacer ring, 13-shell, 14-end plate.
embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in Fig. 1 composition graphs 2 ~ Fig. 4, compact type regenerator, comprise front end-plate 1 and end plate 14, front end-plate 1, some heat exchange unit assemblings of end plate 14 and several air side heat-exchange fins 3 be arranged between two end plates and heat-exchange fin 4 interval, combustion gas side superposition composition, soldering is carried out with brazing material, dividing plate 2 is lined with between air side heat-exchange fin 3 and combustion gas side heat-exchange fin 4, space between two dividing plates 2 in the outside of air side heat-exchange fin 3 and air side guide plate 5 is filled by the air spacer ring 10 being enclosed in air side heat-exchange fin 3 and air side guide plate 5 periphery, air spacer ring 10 ensures that air flow channel and combustion gas side runner are separated, the both sides of combustion gas side heat-exchange fin 4 and combustion gas side guide plate 6, space between two dividing plates 2 is filled by strip of paper used for sealing 9,
Air side heat-exchange fin 3, combustion gas side heat-exchange fin 4, the fit outside of dividing plate 2 and front end-plate 1 and end plate 14 superposition composition is enclosed within shell 13, shell 13 is the tube structure of upper lower flange, the upper epitaxial lateral overgrowth of front end-plate 1 stretches out an air intlet pipe 8 through shell 13, the lower epitaxial lateral overgrowth of front end-plate 1 stretches out an air outlet slit pipe 7 through shell 13, the central position of air intlet pipe 8 and air outlet slit pipe 7, front end-plate 1 and dividing plate 2 have and the through hole of air intlet pipe 8 with diameter, this through hole is not opened on the dividing plate 2 of end plate 14, on the central position of air intlet pipe 8 and air outlet slit pipe 7, space between combustion gas side heat-exchange fin 4 and combustion gas side guide plate 6 is filled by combustion gas spacer ring 12, air and combustion gas are separated by combustion gas spacer ring 12,
Shell 13 inwall is respectively equipped with stiffening rib 11 with air outlet slit pipe 7 lower position on the upside of air intlet pipe 8.
Compact type regenerator is the structure adopting plate-fin heat exchanger, superpose soldering by multilayer combustion gas working medium runner and multi-tiered compression air working medium runner to form, each grate firing gas working medium small flow channels surrounded by two-layer dividing plate 2, combustion gas side heat-exchange fin 4, strip of paper used for sealing 9, combustion gas side guide plate 6 and two combustion gas spacer rings 12, each layer of air working medium small flow channels surrounded by two-layer dividing plate 2, air side heat-exchange fin 3, air side guide plate 5 and air spacer ring 10, and the runner dividing plate 2 between often two-layer separates.
Air enters from air intlet pipe 8, is flowed out by air outlet slit pipe 7, and combustion gas enters regenerator by shell 13 bottom, is flowed out by shell 13 top.
Because compact type regenerator adopts plate-fin heat exchanger structure, the high-temperature fuel gas that gas turbine is discharged and the air after compressing take reflux type heat exchange, improve the heat exchange efficiency of regenerator, and compact structure, reduce the pressure loss of pressurized air in regenerator, improve simple gas turbine efficiency and than merit, thus improve the performance of simple gas turbine.
Claims (4)
1. a compact type regenerator, comprise front end-plate (1) and end plate (14), it is characterized in that: front end-plate (1), some heat exchange unit assemblings of end plate (14) and several air side heat-exchange fins (3) be arranged between two end plates and heat-exchange fin (4) interval, combustion gas side superposition composition, soldering is carried out with brazing material, dividing plate (2) is lined with between air side heat-exchange fin (3) and combustion gas side heat-exchange fin (4), space between two dividing plates (2) in the outside of air side heat-exchange fin (3) and air side guide plate (5) is filled by the air spacer ring (10) being enclosed in air side heat-exchange fin (3) and air side guide plate (5) periphery, the both sides of combustion gas side heat-exchange fin (4) and combustion gas side guide plate (6), space between two dividing plates (2) is filled by strip of paper used for sealing (9),
Air side heat-exchange fin (3), combustion gas side heat-exchange fin (4), the fit outside of dividing plate (2) and front end-plate (1) and end plate (14) superposition composition is enclosed within shell (13), the tube structure that shell (13) is upper lower flange, the upper epitaxial lateral overgrowth of front end-plate (1) stretches out an air intlet pipe (8) through shell (13), the lower epitaxial lateral overgrowth of front end-plate (1) stretches out an air outlet slit pipe (7) through shell (13), the central position of air intlet pipe (8) and air outlet slit pipe (7), front end-plate (1) and dividing plate (2) have and the through hole of air intlet pipe (8) with diameter, this through hole is not opened on the dividing plate (2) of end plate (14), on the central position of air intlet pipe (8) and air outlet slit pipe (7), space between combustion gas side heat-exchange fin (4) and combustion gas side guide plate (6) is filled by combustion gas spacer ring (12),
Compact type regenerator is the structure adopting plate-fin heat exchanger, superpose soldering by multilayer combustion gas working medium runner and multi-tiered compression air working medium runner to form, each grate firing gas working medium small flow channels is by two-layer dividing plate (2), combustion gas side heat-exchange fin (4), strip of paper used for sealing (9), combustion gas side guide plate (6) and two combustion gas spacer rings (12) surrounded, each layer of air working medium small flow channels is by two-layer dividing plate (2), air side heat-exchange fin (3), air side guide plate (5) and air spacer ring (10) surrounded, runner dividing plate (2) between often two-layer separates.
2. compact type regenerator according to claim 1, it is characterized in that: outside compact type regenerator, be fixedly connected with shell (13), shell (13) inwall is respectively equipped with stiffening rib (11) in air intlet pipe (8) upside and air outlet slit pipe (7) lower position.
3. compact type regenerator according to claim 1, is characterized in that: described heat exchange unit, replaces with multiple small-sized heat exchange unit superposition.
4. compact type regenerator according to claim 1, it is characterized in that: air enters from air intlet pipe (8), flowed out by air outlet slit pipe (7), combustion gas enters regenerator by shell (13) bottom, is flowed out by shell (13) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420654360.9U CN204226019U (en) | 2014-11-05 | 2014-11-05 | Compact type regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420654360.9U CN204226019U (en) | 2014-11-05 | 2014-11-05 | Compact type regenerator |
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| CN204226019U true CN204226019U (en) | 2015-03-25 |
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| CN201420654360.9U Active CN204226019U (en) | 2014-11-05 | 2014-11-05 | Compact type regenerator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389683A (en) * | 2014-11-05 | 2015-03-04 | 中国船舶重工集团公司第七�三研究所 | Compact heat regenerator |
| CN109990635A (en) * | 2019-04-18 | 2019-07-09 | 新奥能源动力科技（上海）有限公司 | A kind of regenerative apparatus and gas turbine |
-
2014
- 2014-11-05 CN CN201420654360.9U patent/CN204226019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389683A (en) * | 2014-11-05 | 2015-03-04 | 中国船舶重工集团公司第七�三研究所 | Compact heat regenerator |
| CN109990635A (en) * | 2019-04-18 | 2019-07-09 | 新奥能源动力科技（上海）有限公司 | A kind of regenerative apparatus and gas turbine |
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Effective date of registration: 20151216 Address after: 150090 No. 35, Honghu Road, Yingbin Road, Harbin hi tech Development Zone, Heilongjiang, China Patentee after: Harbin broad power technology development Co., Ltd. Address before: 150000 Honghu Road, Daoli District, Heilongjiang, No. 35, Harbin Patentee before: No.703 Inst. China Ship Heavy Industry Group Co. |