CN2818818Y - Miniature primary surface heat regenerator of gas turbine - Google Patents
Miniature primary surface heat regenerator of gas turbine Download PDFInfo
- Publication number
- CN2818818Y CN2818818Y CN 200520091321 CN200520091321U CN2818818Y CN 2818818 Y CN2818818 Y CN 2818818Y CN 200520091321 CN200520091321 CN 200520091321 CN 200520091321 U CN200520091321 U CN 200520091321U CN 2818818 Y CN2818818 Y CN 2818818Y
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- CN
- China
- Prior art keywords
- heat exchange
- gas turbine
- heat regenerator
- original surface
- utility
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a miniature primary surface heat regenerator of a gas turbine, which mainly comprises a casing body with a pipeline joint and a heat exchange basal body. The utility model is characterized in that the heat exchange basal body is formed by multilayer smooth wave-shaped metal leaves in a stacking way, and a flow passage is formed between each two layers of metal leaves. The hot gas and the cod air can oppositely flow through each flow passage in an interval way, and thus, the utility model can realize heat exchange. Besides, the utility model can raise heat exchange efficiency by increasing the number of cold and hot air flow passages as many as possible in unit volume. The miniature primary surface heat regenerator of a gas turbine provided by the utility model has the advantages that the heat exchange efficiency achieves 88-90%, and the integration level is 1000m< 2 >/m< 3 >. Besides, the utility model has high safety under high temperature, long service life and reliable work.
Description
Technical field
The utility model relates to gas turbine technology, specifically the micro-gas-turbine machine technology.
Background technique
Miniature gas turbine is a kind of small-sized portable power source, and it has, and efficient is higher, size is little, in light weight, advantage such as vibration is little, easy for installation, the life-span is long, maintenance cost is cheap.It is widely used in distributed power supply, cogeneration, standby power supply etc.
The miniature gas turbine regenerator is one of the parts that improve the most critical of the miniature gas turbine thermal efficiency, and its employing makes the raising of the miniature gas turbine thermal efficiency become the most direct, the most effective and the most reliable.Why miniature gas turbine has 26～30% the thermal efficiency, and its key technology just has been to use regenerator, if do not adopt regenerator, the thermal efficiency of miniature gas turbine is the highest can only to be reached about 17%.
The function of regenerator is to utilize the waste heat of discharging combustion gas behind the turbine with importing firing chamber, pressurized air heating back, thereby has improved overall efficiency.The heat exchange efficiency of the regenerator of existing plate and fin type core is still not too high.
Summary of the invention
The regenerator that provides heat exchange efficiency higher is provided the purpose of this utility model.
The utility model provides a kind of original surface type heat regenerator for minitype gas turbine, mainly comprise housing and the heat exchange matrix of being with pipe coupling, it is characterized in that: described heat exchange matrix is laminated by multilayer smooth waveform metal leaf, form runner between every double layer of metal thin foil, the alternate relative current of hot gas and cool air is crossed each runner, realize heat exchange, on per unit volume, increase the quantity in hot and cold air road as much as possible, improve heat exchange efficiency.
The original surface type heat regenerator for minitype gas turbine that the utility model provides, its smooth waveform is preferably sinusoidal waveform.
The original surface type heat regenerator for minitype gas turbine that the utility model provides, its metal leaf are when stacked, and the waveform of adjacent two layers can intersect the θ that has a certain degree, and are preferably 30 °～60 °.
The original surface type heat regenerator for minitype gas turbine that the utility model provides, the thickness δ of its heat exchange parent metal thin foil can be 0.1～0.2mm.
The original surface type heat regenerator for minitype gas turbine that the utility model provides, the ratio apart from H between the pitch of waves λ of its heat exchange matrix waveform and its crest and trough can be 0.5～2.0; The crest of heat exchange matrix waveform and the distance H between the trough can be 0.6～2.0mm; The sine-shaped pitch of waves λ of heat exchange matrix can be 0.7～4.0mm.
The advantage of the original surface type heat regenerator for minitype gas turbine that the utility model provides is: heat exchange efficiency is 88～90%, and level of integration is 1000m
2/ m
3, safety, long, reliable operation of life-span under the high temperature.
Description of drawings
Fig. 1 is the shape original surface heat regenerator base structure schematic representation of sinusoidal wave formula.
Embodiment
Embodiment 1
Sinusoidal wave formula shape original surface heat regenerator, the structure of its heat exchange matrix as shown in Figure 1, the heat exchange matrix is laminated by multilayer sinusoidal waveform stainless steel thin foil, forms runner between every double layer of metal thin foil, the alternate relative current of hot gas and cool air is crossed each runner, realizes heat exchange.The waveform of adjacent two layers intersects 45, and stainless steel thin foil thickness δ is 0.15mm, and the distance H between sine-shaped crest of heat exchange matrix and the trough is 1mm, and the sine-shaped pitch of waves λ of heat exchange matrix is 1mm.
With other type backheat gas phase ratio with boundary dimension, efficient improves 22%.
Embodiment 2
Sinusoidal wave formula shape original surface heat regenerator, the structure of its heat exchange matrix as shown in Figure 1, the heat exchange matrix is laminated by multilayer sinusoidal waveform stainless steel thin foil, forms runner between every double layer of metal thin foil, the alternate relative current of hot gas and cool air is crossed each runner, realizes heat exchange.The waveform of adjacent two layers intersects 35 ° of angles, and stainless steel thin foil thickness δ is 0.18mm, and the distance H between sine-shaped crest of heat exchange matrix and the trough is 0.8mm, and the sine-shaped pitch of waves λ of heat exchange matrix is 1.5mm.
With other type backheat gas phase ratio with boundary dimension, efficient improves 21%.
Embodiment 3
Sinusoidal wave formula shape original surface heat regenerator, the structure of its heat exchange matrix as shown in Figure 1, the heat exchange matrix is laminated by multilayer sinusoidal waveform heat resisting alloy thin foil, forms runner between every double layer of metal thin foil, the alternate relative current of hot gas and cool air is crossed each runner, realizes heat exchange.The waveform of adjacent two layers intersects 55 ° of angles, and heat resisting alloy thin foil thickness δ is 0.13mm, and the distance H between sine-shaped crest of heat exchange matrix and the trough is 1.2mm, and the sine-shaped pitch of waves λ of heat exchange matrix is 1.8mm.
With other type backheat gas phase ratio with boundary dimension, efficient improves 21.5%.
Claims (9)
1, a kind of original surface type heat regenerator for minitype gas turbine mainly comprises housing and the heat exchange matrix of being with pipe coupling, and it is characterized in that: described heat exchange matrix is laminated by multilayer smooth waveform metal leaf, forms runner between every double layer of metal thin foil.
2, according to the described original surface type heat regenerator for minitype gas turbine of claim 1, it is characterized in that: described smooth waveform is a sinusoidal waveform.
3, according to the described original surface type heat regenerator for minitype gas turbine of claim 1, it is characterized in that: described metal leaf is when stacked, and its waveform is to intersect the θ that has a certain degree.
4, according to the described original surface type heat regenerator for minitype gas turbine of claim 2, it is characterized in that: described metal leaf is when stacked, and the waveform of its adjacent two layers is to intersect the θ that has a certain degree.
5, according to claim 3 or 4 described original surface type heat regenerator for minitype gas turbine, it is characterized in that: described angle θ is 30 °～60 °.
6, according to claim 3 or 4 described original surface type heat regenerator for minitype gas turbine, it is characterized in that: the thickness δ of described heat exchange parent metal thin foil is 0.1～0.2mm.
7, according to the described original surface type heat regenerator for minitype gas turbine of one of claim 1～4, it is characterized in that: the ratio apart from H between the pitch of waves λ of described heat exchange matrix waveform and its crest and trough is 0.5～2.0.
8, according to the described original surface type heat regenerator for minitype gas turbine of one of claim 1～4, it is characterized in that: the crest of described heat exchange matrix waveform and the distance H between the trough are 0.6～2.0mm.
9, according to the described original surface type heat regenerator for minitype gas turbine of one of claim 1～4, it is characterized in that: the sine-shaped pitch of waves λ of described heat exchange matrix is 0.7～4.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091321 CN2818818Y (en) | 2005-06-16 | 2005-06-16 | Miniature primary surface heat regenerator of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520091321 CN2818818Y (en) | 2005-06-16 | 2005-06-16 | Miniature primary surface heat regenerator of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2818818Y true CN2818818Y (en) | 2006-09-20 |
Family
ID=37004872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520091321 Expired - Fee Related CN2818818Y (en) | 2005-06-16 | 2005-06-16 | Miniature primary surface heat regenerator of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2818818Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104246178A (en) * | 2012-02-21 | 2014-12-24 | 巴布科克·博西格·施泰因米勒有限公司 | Micro gas turbine system having an annular recuperator |
-
2005
- 2005-06-16 CN CN 200520091321 patent/CN2818818Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104246178A (en) * | 2012-02-21 | 2014-12-24 | 巴布科克·博西格·施泰因米勒有限公司 | Micro gas turbine system having an annular recuperator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060920 Termination date: 20130616 |