CN211777617U - Medium-low pressure cylinder steel casting of cogeneration unit - Google Patents
Medium-low pressure cylinder steel casting of cogeneration unit Download PDFInfo
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- CN211777617U CN211777617U CN202020273396.8U CN202020273396U CN211777617U CN 211777617 U CN211777617 U CN 211777617U CN 202020273396 U CN202020273396 U CN 202020273396U CN 211777617 U CN211777617 U CN 211777617U
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Abstract
The utility model discloses a low-pressure cylinder steel casting in a combined heat and power unit, which comprises a cylinder body casting, wherein a left connecting flange is integrally arranged at the left end of the cylinder body casting, a first assembling connecting plate is integrally arranged at the lower end of the left connecting flange, and a second assembling connecting plate is integrally arranged at the upper end of the left connecting flange; a right connecting flange is integrally arranged at the right end of the cylinder body casting, a third assembling connecting plate is integrally arranged at the lower end of the right connecting flange, and a fourth assembling connecting plate is integrally arranged at the upper end of the right connecting flange; the cylinder body casting is characterized in that an anti-corrosion inner layer is fixedly arranged on the inner surface of the cylinder body casting, an aluminum heat dissipation layer is welded on the outer surface of the cylinder body casting, and an anti-corrosion outer layer is fixedly arranged on the outer surface of the aluminum heat dissipation layer. Above-mentioned technical scheme, structural design is reasonable, simple structure, the assembly face is few, be difficult for leaking, corrosion resisting property is good, long service life and practicality are good.
Description
Technical Field
The utility model relates to a low pressure jar technical field, concretely relates to combined heat and power generation unit low pressure jar steel-casting.
Background
The steam cylinder is generally divided into a high-pressure cylinder, a medium-pressure cylinder and a low-pressure cylinder according to different steam parameters, the steam cylinder is divided into a single-layer cylinder and a double-layer cylinder, the single-layer cylinder is commonly used for a low-parameter steam turbine, and the double-layer cylinder is commonly used for a high-parameter steam turbine and is divided into an inner cylinder and an outer cylinder.
The existing high-pressure inner cylinder still has the defects that: the structure design is unreasonable, the structure is complex, the assembly is complex, the process requirement is high, and the labor intensity of workers is also high. Further, since the number of mounting surfaces is large, the steam leakage due to the mounting clearance causes a decrease in the operating efficiency of the steam turbine, and the inner and outer surfaces of the cylinder block are easily corroded by long-term use, resulting in poor practicality.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a low pressure cylinder cast steel spare in combined heat and power units that structural design is reasonable, simple structure, assembly face are few, be difficult for leaking, corrosion resisting property is good, long service life and practicality are good.
In order to achieve the above purpose, the utility model provides a following technical scheme: a low-pressure cylinder steel casting in a cogeneration unit comprises a cylinder body casting, wherein a left connecting flange is integrally arranged at the left end of the cylinder body casting, a first assembling connecting plate is integrally arranged at the lower end of the left connecting flange, and a second assembling connecting plate is integrally arranged at the upper end of the left connecting flange; a right connecting flange is integrally arranged at the right end of the cylinder body casting, a third assembling connecting plate is integrally arranged at the lower end of the right connecting flange, and a fourth assembling connecting plate is integrally arranged at the upper end of the right connecting flange; the cylinder body casting is characterized in that an anti-corrosion inner layer is fixedly arranged on the inner surface of the cylinder body casting, an aluminum heat dissipation layer is welded on the outer surface of the cylinder body casting, and an anti-corrosion outer layer is fixedly arranged on the outer surface of the aluminum heat dissipation layer.
By adopting the technical scheme, the cylinder body casting is integrally arranged with the left connecting flange, the first assembling connecting plate, the second assembling connecting plate, the right connecting flange, the third assembling connecting plate and the fourth assembling connecting plate, so that the assembling surface is reduced, and the leakage position is effectively reduced; the aluminum heat dissipation layer welded on the outer surface of the cylinder body casting can improve heat dissipation performance; the corrosion-resistant inner layer ensures that the inner surface of the cylinder body has good corrosion resistance and the service life is prolonged; the outer anti-corrosion layer enables the outer surface of the cylinder body to have good anti-corrosion performance and prolongs the service life; the low-pressure cylinder steel casting in the whole combined heat and power generation unit has the advantages of reasonable structural design, simple structure, few assembly surfaces, difficulty in leakage, good corrosion resistance, long service life and good practicability.
The utility model discloses further set up to: the outer surface of the anti-corrosion inner layer is fixedly welded with the inner surface of the cylinder body casting, the anti-corrosion inner layer is made of stainless steel materials, and the thickness of the anti-corrosion inner layer is 0.5-1.5 mm.
The utility model discloses still further set up to: the aluminum heat dissipation layer is made of an aluminum material, and the thickness of the aluminum heat dissipation layer is 0.2-1 mm.
The utility model discloses still further set up to: the inner surface of the anti-corrosion outer layer is welded and fixed with the outer surface of the aluminum heat dissipation layer, the anti-corrosion outer layer is made of stainless steel materials, and the thickness of the anti-corrosion outer layer is 0.5-2 mm.
The utility model discloses still further set up to: the first assembling connecting plate, the second assembling connecting plate, the third assembling connecting plate and the fourth assembling connecting plate are all of rectangular structures, and at least two threaded connecting holes are formed in the first assembling connecting plate, the second assembling connecting plate, the third assembling connecting plate and the fourth assembling connecting plate.
The utility model discloses still further set up to: the anti-counterfeiting convex block is integrally arranged at the local position of the outer surface of the anti-corrosion outer layer.
The utility model has the advantages that: compared with the prior art, the structure of the utility model is more reasonable, the cylinder body casting is integrally arranged with the left connecting flange, the first assembling connecting plate, the second assembling connecting plate, the right connecting flange, the third assembling connecting plate and the fourth assembling connecting plate, the assembling surface is reduced, and the leakage is effectively reduced; the aluminum heat dissipation layer welded on the outer surface of the cylinder body casting can improve heat dissipation performance; the corrosion-resistant inner layer ensures that the inner surface of the cylinder body has good corrosion resistance and the service life is prolonged; the outer anti-corrosion layer enables the outer surface of the cylinder body to have good anti-corrosion performance and prolongs the service life; the low-pressure cylinder steel casting in the whole combined heat and power generation unit has the advantages of reasonable structural design, simple structure, few assembly surfaces, difficulty in leakage, good corrosion resistance, long service life and good practicability.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is an enlarged schematic view of a portion I in fig. 1.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 and 2, the utility model discloses a low-pressure cylinder steel casting in a cogeneration unit, which comprises a cylinder body casting 1, wherein a left connecting flange 11 is integrally arranged at the left end of the cylinder body casting 1, a first assembling connecting plate 12 is integrally arranged at the lower end of the left connecting flange 11, and a second assembling connecting plate 13 is integrally arranged at the upper end of the left connecting flange 11; a right connecting flange 14 is integrally arranged at the right end of the cylinder body casting 1, a third assembling and connecting plate 15 is integrally arranged at the lower end of the right connecting flange 14, and a fourth assembling and connecting plate 16 is integrally arranged at the upper end of the right connecting flange 14; an anti-corrosion inner layer 17 is fixedly arranged on the inner surface of the cylinder body casting 1, an aluminum heat dissipation layer 18 is welded on the outer surface of the cylinder body casting 1, and an anti-corrosion outer layer 19 is fixedly arranged on the outer surface of the aluminum heat dissipation layer 18.
Preferably, the corrosion-resistant inner layer 17, the cylinder casting 1, the aluminum heat dissipation layer 18 and the corrosion-resistant outer layer 19 are connected and fixed to form an integral structure.
For making the utility model discloses the structure sets up more rationally, the surface of anticorrosion inlayer 17 and the internal surface welded fastening of cylinder body foundry goods 1, and anticorrosion inlayer 17 is made by stainless steel material, and anticorrosion inlayer 17's thickness is 0.5-1.5 mm.
The aluminum heat dissipation layer 18 is made of an aluminum material, and the thickness of the aluminum heat dissipation layer 18 is 0.2 to 1 mm.
The inner surface of the anti-corrosion outer layer 19 is welded and fixed with the outer surface of the aluminum heat dissipation layer 18, the anti-corrosion outer layer 19 is made of stainless steel materials, and the thickness of the anti-corrosion outer layer 19 is 0.5-2 mm.
The first assembling and connecting plate 12, the second assembling and connecting plate 13, the third assembling and connecting plate 15 and the fourth assembling and connecting plate 16 are all of rectangular structures, and at least two threaded connecting holes are formed in the first assembling and connecting plate 12, the second assembling and connecting plate 13, the third assembling and connecting plate 15 and the fourth assembling and connecting plate 16.
The outer surface of the anti-corrosion outer layer 19 is provided with an anti-counterfeiting bump 191 at a local position integrally. Preferably, the anti-counterfeiting bump 191 is provided with a raised anti-counterfeiting image-text information layer or is embossed with the anti-counterfeiting image-text information layer.
In practical application, the cylinder body casting is integrally arranged with the left connecting flange, the first assembling connecting plate, the second assembling connecting plate, the right connecting flange, the third assembling connecting plate and the fourth assembling connecting plate, so that the assembling surface is reduced, and the leakage position is effectively reduced; the aluminum heat dissipation layer welded on the outer surface of the cylinder body casting can improve heat dissipation performance; the corrosion-resistant inner layer ensures that the inner surface of the cylinder body has good corrosion resistance and the service life is prolonged; the outer anti-corrosion layer enables the outer surface of the cylinder body to have good anti-corrosion performance and prolongs the service life; the low-pressure cylinder steel casting in the whole combined heat and power generation unit has the advantages of reasonable structural design, simple structure, few assembly surfaces, difficulty in leakage, good corrosion resistance, long service life and good practicability.
The above embodiments are only used for further explanation of the present invention, and it is not understood that the present invention is limited by the protection scope of the present invention, and the technical engineers in the field are right according to the above contents of the present invention.
Claims (6)
1. The utility model provides a low pressure cylinder cast steel spare in combined heat and power generation unit, includes cylinder body foundry goods (1), its characterized in that: a left connecting flange (11) is integrally arranged at the left end of the cylinder body casting (1), a first assembling connecting plate (12) is integrally arranged at the lower end of the left connecting flange (11), and a second assembling connecting plate (13) is integrally arranged at the upper end of the left connecting flange (11); a right connecting flange (14) is integrally arranged at the right end of the cylinder body casting (1), a third assembling and connecting plate (15) is integrally arranged at the lower end of the right connecting flange (14), and a fourth assembling and connecting plate (16) is integrally arranged at the upper end of the right connecting flange (14); the cylinder body casting comprises a cylinder body casting (1) and is characterized in that an anti-corrosion inner layer (17) is fixedly arranged on the inner surface of the cylinder body casting (1), an aluminum heat dissipation layer (18) is welded on the outer surface of the cylinder body casting (1), and an anti-corrosion outer layer (19) is fixedly arranged on the outer surface of the aluminum heat dissipation layer (18).
2. The low-pressure cylinder steel casting in a cogeneration unit according to claim 1, wherein: the outer surface of the anti-corrosion inner layer (17) is fixedly welded with the inner surface of the cylinder body casting (1), the anti-corrosion inner layer (17) is made of stainless steel materials, and the thickness of the anti-corrosion inner layer (17) is 0.5-1.5 mm.
3. The low-pressure cylinder steel casting in a cogeneration unit according to claim 1, wherein: the aluminum heat dissipation layer (18) is made of an aluminum material, and the thickness of the aluminum heat dissipation layer (18) is 0.2-1 mm.
4. The low-pressure cylinder steel casting in a cogeneration unit according to claim 1, wherein: the inner surface of the anti-corrosion outer layer (19) is fixedly welded with the outer surface of the aluminum heat dissipation layer (18), the anti-corrosion outer layer (19) is made of stainless steel materials, and the thickness of the anti-corrosion outer layer (19) is 0.5-2 mm.
5. The low-pressure cylinder steel casting in a cogeneration unit according to claim 1, wherein: the first assembling and connecting plate (12), the second assembling and connecting plate (13), the third assembling and connecting plate (15) and the fourth assembling and connecting plate (16) are all of rectangular structures, and at least two threaded connecting holes are formed in the first assembling and connecting plate (12), the second assembling and connecting plate (13), the third assembling and connecting plate (15) and the fourth assembling and connecting plate (16).
6. The low-pressure cylinder steel casting in a cogeneration unit according to claim 1, wherein: an anti-counterfeiting bump (191) is integrally arranged at the local position of the outer surface of the anti-corrosion outer layer (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273396.8U CN211777617U (en) | 2020-03-09 | 2020-03-09 | Medium-low pressure cylinder steel casting of cogeneration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020273396.8U CN211777617U (en) | 2020-03-09 | 2020-03-09 | Medium-low pressure cylinder steel casting of cogeneration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211777617U true CN211777617U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020273396.8U Active CN211777617U (en) | 2020-03-09 | 2020-03-09 | Medium-low pressure cylinder steel casting of cogeneration unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211777617U (en) |
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2020
- 2020-03-09 CN CN202020273396.8U patent/CN211777617U/en active Active
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