CN219974579U - Frosting prevention device for expansion end of expander - Google Patents
Frosting prevention device for expansion end of expander Download PDFInfo
- Publication number
- CN219974579U CN219974579U CN202321084386.XU CN202321084386U CN219974579U CN 219974579 U CN219974579 U CN 219974579U CN 202321084386 U CN202321084386 U CN 202321084386U CN 219974579 U CN219974579 U CN 219974579U
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- Prior art keywords
- cover
- splicing
- splice
- expansion end
- expansion
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- 230000002265 prevention Effects 0.000 title claims description 9
- 238000004321 preservation Methods 0.000 claims abstract description 35
- 230000013011 mating Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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- Thermal Insulation (AREA)
Abstract
The utility model discloses an anti-frosting device for an expansion end of an expansion machine, which comprises a first splicing cover, a second splicing cover and a third splicing cover, wherein the first splicing cover, the second splicing cover and the third splicing cover are spliced by a jogged part along the circumferential direction to form an annular outer cover structure with an annular heat preservation cavity, and the interior of the annular heat preservation cavity is filled with a heat preservation layer; according to the utility model, the first splicing cover, the second splicing cover and the third splicing cover are spliced in sequence along the circumferential direction to form the annular outer cover structure covered outside the expansion end, and the annular heat preservation cavity between the annular outer cover structure and the expansion end is filled with the heat preservation layer, so that the expansion end of the expansion machine is insulated, and the phenomenon of frosting at the expansion end of the expansion machine is effectively prevented.
Description
Technical Field
The utility model belongs to the technical field of frost prevention of an expansion machine, and relates to a frost prevention device for an expansion end of the expansion machine.
Background
The expansion end of the turboexpander is at a lower temperature during operation, typically at about 180 ℃ below zero. Therefore, in the practical use process of the turbine expander, once the air containing moisture in the external environment contacts the expansion end of the expander, frost is quickly formed on the surface of the expansion end under the low temperature effect of the expansion end. If the expansion end is in a frosting state for a long time, the working efficiency of the expander is affected. Therefore, there is a need for a device that can effectively insulate the expansion end of an expander, so as to insulate the expansion end and avoid frosting of the expansion end.
Disclosure of Invention
The utility model aims to provide an anti-frosting device for an expansion end of an expansion machine, which can form a shield with a heat preservation layer on the outer side of the expansion end so as to prevent frosting of the expansion end.
The utility model is realized by the following technical scheme:
the utility model provides an expansion end anti-frosting device of expander, includes first concatenation cover, second concatenation cover, third concatenation cover, first concatenation cover, second concatenation cover, third concatenation cover splice through gomphosis portion in proper order along circumference and constitute the annular dustcoat structure that has annular heat preservation chamber, the inside in annular heat preservation chamber is filled there is the heat preservation.
The first splice cover, the second splice cover, the third splice cover all are provided with the heat preservation chamber on being close to the one side of the expansion end of expander, and first splice cover, the second splice cover, the third splice cover is spliced in proper order along the axial through the gomphosis portion and is constituted the annular dustcoat structure of cover at the expansion end outside, and the heat preservation chamber on first splice cover, the second splice cover, the third splice cover also splice in proper order and constitute the annular heat preservation chamber of whole ring shape, and the inside in annular heat preservation chamber then is filled with the heat preservation layer for keep warm the expansion end of expander, and then effectively avoid the expansion end frosting of expander.
In order to better realize the utility model, the embedded part further comprises embedded convex blocks and/or embedded grooves which are arranged on the embedded ends of the first embedded cover, the second embedded cover and the third embedded cover, and the embedded convex blocks are matched and spliced with the embedded grooves.
In order to better realize the utility model, the embedded convex block comprises at least one guiding inclined surface, and the embedded concave groove comprises at least one matched inclined surface correspondingly spliced with the guiding inclined surface.
In order to better realize the utility model, the second splicing cover further comprises a front splicing cover and a rear splicing cover which are spliced in sequence along the axial direction, the splicing surface of the front splicing cover along the circumferential direction is provided with a jogged part, the rear end surface of the front splicing cover along the axial direction is provided with a front half hole, the front end surface of the rear splicing cover along the axial direction is provided with a rear half hole, and the front half hole and the rear half hole are correspondingly spliced to form a whole round hole.
In order to better realize the utility model, a connecting pull plate is further arranged between the rear end face of the front splicing cover along the axial direction and the front end face of the rear splicing cover along the axial direction, the front end of the connecting pull plate is connected with the front splicing cover through a connecting bolt, and the rear end of the connecting pull plate is connected with the rear splicing cover through the connecting bolt.
In order to better realize the utility model, further, a first connecting flange is arranged at the edge of the first splicing cover, and a plurality of connecting holes are arranged on the first connecting flange along the circumferential direction.
In order to better realize the utility model, further, a first connecting flange is arranged at the edge of the second splicing cover, and a plurality of connecting holes are arranged on the first connecting flange along the circumferential direction.
In order to better realize the utility model, further, a first connecting flange is arranged at the edge of the third splicing cover, and a plurality of connecting holes are arranged on the first connecting flange along the circumferential direction.
Compared with the prior art, the utility model has the following advantages:
the utility model corresponds to the expansion end of the turbine expander, the first splicing cover, the second splicing cover and the third splicing cover are sequentially arranged along the circumferential direction, the first splicing cover, the second splicing cover and the third splicing cover are conveniently spliced by arranging the embedded parts between the adjacent splicing covers, and then the first splicing cover, the second splicing cover and the third splicing cover are sequentially spliced along the circumferential direction to form an annular outer cover structure so as to cover the expansion end, meanwhile, an annular heat preservation cavity is formed between the annular outer cover structure and the expansion end, and the heat preservation layer is filled in the annular heat preservation cavity, so that the heat preservation of the expansion end is realized, and the frosting phenomenon of the expansion end is avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a schematic structural view of the fitting portion;
FIG. 3 is a schematic view of an annular insulating chamber;
fig. 4 is a schematic structural view of a second splice cover.
Wherein: 1-a first splice closure; 2-a second splice closure; 3-a third splice closure; 4-a fitting portion; 21-front splice cover; 22-a rear splice closure; 23-connecting pull plates; 41-fitting the bump; 42-a fitting groove; 111-an annular heat preservation cavity; 221-front half hole; 222-second half hole.
Detailed Description
Example 1:
the frost prevention device for the expansion end of the expansion machine, as shown in fig. 1-3, comprises a first splicing cover 1, a second splicing cover 2 and a third splicing cover 3, wherein the first splicing cover 1, the second splicing cover 2 and the third splicing cover 3 are spliced to form an annular outer cover structure with an annular heat preservation cavity 111 along the circumferential direction sequentially through a jogged part 4, and the inside of the annular heat preservation cavity 111 is filled with a heat preservation layer.
The first splice cover 1, the second splice cover 2, the third splice cover 3 splice in proper order along circumference and constitute annular housing structure, first splice cover 1, second splice cover 2, third splice cover 3 all are provided with the heat preservation chamber that is used for filling the heat preservation on being close to the expansion end one side, gomphosis portion 4 sets up on first splice cover 1, second splice cover 2, the concatenation terminal surface along circumference of third splice cover 3, splice after first splice cover 1, second splice cover 2, third splice cover 3 splice through gomphosis portion 4 in proper order for first splice cover 1, second splice cover 2, the inboard heat preservation chamber of third splice cover 3 also splice in proper order along circumference and constitute annular heat preservation chamber 111, then can pack the heat preservation in annular heat preservation chamber 111 and be used for keeping warm the expansion end of expander, effectively prevent the expansion end frost of expander.
Further, the heat preservation layer is any one of a heat preservation cotton layer, a heat preservation rubber layer and a heat preservation foaming foam layer.
Example 2:
this embodiment is further optimized on the basis of embodiment 1 described above, as shown in fig. 2 and 4, the engaging portion 4 includes engaging protrusions 41 and/or engaging grooves 42 provided on the engaging ends of the first, second and third engaging covers 1, 2, 3, and the engaging protrusions 41 are engaged with the engaging grooves 42.
The two ends of the first splice cover 1, the second splice cover 2 and the third splice cover 3 along the circumferential direction are splice surfaces, at least one embedded lug 41 and/or an embedded groove 42 are arranged on the splice surfaces, and the embedded lug 41 and the embedded groove 42 are directly assembled and embedded, so that the first splice cover 1, the second splice cover 2 and the third splice cover 3 are sequentially spliced along the circumferential direction to form an annular outer cover structure.
Further, the engaging projection 41 includes at least one guiding inclined surface, and the engaging groove 42 includes at least one engaging inclined surface which is engaged with the guiding inclined surface.
The fitting projection 41 can be smoothly fitted into the fitting groove 42 by sliding fit guiding between the guiding inclined surface of the fitting end side of the fitting projection 41 and the fitting inclined surface of the fitting groove 42.
Other portions of this embodiment are the same as those of embodiment 1, and thus will not be described in detail.
Example 3:
the present embodiment is further optimized based on the foregoing embodiment 1 or 2, as shown in fig. 4, the second splicing cover 2 includes a front splicing cover 21 and a rear splicing cover 22 that are spliced in sequence along an axial direction, a mosaic portion 4 is disposed on a splicing surface of the front splicing cover 21 along a circumferential direction, a front half hole 221 is disposed on a rear end surface of the front splicing cover 21 along the axial direction, a rear half hole 222 is disposed on a front end surface of the rear splicing cover 22 along the axial direction, and the front half hole 221 and the rear half hole 222 are correspondingly spliced to form a round hole.
The second splice cover 2 is arranged at the positions corresponding to the sealing air pipe and the oil temperature detection pipe on the expansion end of the expansion machine, so that the second splice cover 2 is arranged to be spliced in the axial direction front and back. That is, the front splice cover 21 and the rear splice cover 22 are spliced in the front-rear direction in the axial direction to form the second splice cover 2, the front splice cover 21 is axially disposed in front of the expansion end, and the rear splice cover 22 is axially disposed in rear of the expansion end. After the front splicing cover 21 and the rear splicing cover 22 are spliced along the front-rear direction, the front half hole 221 on the front splicing cover 21 and the rear half hole 222 on the rear splicing cover 22 are spliced to form a whole round hole, and the whole round hole is used for the sealing air pipe and the oil temperature detection pipe to pass through, so that interference with the sealing air pipe, the oil temperature detection pipe and the second splicing cover 2 is avoided.
Further, a connection pull plate 23 is arranged between the rear end face of the front splicing cover 21 along the axial direction and the front end face of the rear splicing cover 22 along the axial direction, the front end of the connection pull plate 23 is connected with the front splicing cover 21 through a connection bolt, and the rear end of the connection pull plate 23 is connected with the rear splicing cover 22 through a connection bolt.
The front splicing cover 21 and the rear splicing cover 22 are respectively provided with a connecting threaded hole, a connecting pull plate 23 is spanned between the splicing seams of the front splicing cover 21 and the rear splicing cover 22, the front end and the rear end of the connecting pull plate 23 are respectively provided with a through hole corresponding to the connecting threaded holes, and connecting bolts are screwed into the through holes and the connecting threaded holes, so that the front splicing cover 21 and the rear splicing cover 22 are tensioned and spliced and fixed through the connecting pull plate 23.
Other portions of this embodiment are the same as those of embodiment 1 or 2 described above, and thus will not be described again.
Example 4:
the present embodiment is further optimized based on any one of the foregoing embodiments 1 to 3, as shown in fig. 1 to 4, a first connecting flange is disposed at an edge of the first splice cover 1, and a plurality of connecting holes are disposed on the first connecting flange along a circumferential direction.
The edge of the second splice cover 2 is provided with a first connecting flange, and a plurality of connecting holes are formed in the first connecting flange along the circumferential direction.
The edge of the third splice cover 3 is provided with a first connecting flange, and a plurality of connecting holes are formed in the first connecting flange along the circumferential direction.
Be provided with a plurality of connecting screw holes on the inflation terminal surface of inflation machine, be provided with respectively on the one side that first splice cover 1, second splice cover 2, third splice cover 3 are close to the inflation terminal surface with inflation terminal surface laminating first flange, second flange, third flange, and all correspond the connecting screw hole on the inflation terminal surface on first flange, second flange, third flange and be provided with the connecting hole, through screwing in connecting bolt in connecting hole and connecting screw hole, can realize that first splice cover 1, second splice cover 2, third splice cover 3 are fixed in the installation of inflation terminal outside.
Other portions of this embodiment are the same as any of embodiments 1 to 3 described above, and thus will not be described again.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present utility model fall within the scope of the present utility model.
Claims (8)
1. The utility model provides an expansion machine expansion end frosting prevention device, its characterized in that includes first concatenation cover (1), second concatenation cover (2), third concatenation cover (3), first concatenation cover (1), second concatenation cover (2), third concatenation cover (3) splice through gomphosis portion (4) in proper order along circumference and constitute the annular dustcoat structure that has annular heat preservation chamber (111), the inside of annular heat preservation chamber (111) is filled with the heat preservation.
2. An expansion end anti-frosting device of an expansion machine according to claim 1, wherein the jogging part (4) comprises jogging convex blocks (41) and/or jogging grooves (42) arranged on jogged ends of the first jogged cover (1), the second jogged cover (2) and the third jogged cover (3), and the jogging convex blocks (41) are jogged with the jogging grooves (42).
3. An expansion end anti-frosting device of an expander according to claim 2, wherein said engagement projection (41) comprises at least one guiding inclined surface and said engagement recess (42) comprises at least one mating inclined surface which mates with the guiding inclined surface.
4. A frost prevention device for an expansion end of an expander according to any one of claims 1 to 3, wherein the second splicing cover (2) comprises a front splicing cover (21) and a rear splicing cover (22) which are spliced in sequence along an axial direction, a splicing surface of the front splicing cover (21) along a circumferential direction is provided with a splicing part (4), a rear end surface of the front splicing cover (21) along the axial direction is provided with a front half hole (221), a front end surface of the rear splicing cover (22) along the axial direction is provided with a rear half hole (222), and the front half hole (221) and the rear half hole (222) are correspondingly spliced to form a round hole.
5. The frost prevention device for an expansion end of an expander according to claim 4, wherein a connecting pull plate (23) is provided between a rear end face of the front splice cover (21) in an axial direction and a front end face of the rear splice cover (22) in an axial direction, a front end of the connecting pull plate (23) is connected with the front splice cover (21) by a connecting bolt, and a rear end of the connecting pull plate (23) is connected with the rear splice cover (22) by a connecting bolt.
6. A frost prevention apparatus for an expansion end of an expander according to any one of claims 1 to 3, wherein a first connecting flange is provided at the edge of the first splice cover (1), and a plurality of connecting holes are provided in the first connecting flange in the circumferential direction.
7. An expansion end anti-frosting device of an expansion machine according to any one of claims 1-3, characterized in that a first connecting flange is arranged at the edge of the second splicing cover (2), and a plurality of connecting holes are arranged on the first connecting flange along the circumferential direction.
8. An expansion end anti-frosting device of an expansion machine according to any one of claims 1-3, characterized in that a first connecting flange is arranged at the edge of the third splicing cover (3), and a plurality of connecting holes are arranged on the first connecting flange along the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321084386.XU CN219974579U (en) | 2023-05-08 | 2023-05-08 | Frosting prevention device for expansion end of expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321084386.XU CN219974579U (en) | 2023-05-08 | 2023-05-08 | Frosting prevention device for expansion end of expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974579U true CN219974579U (en) | 2023-11-07 |
Family
ID=88596835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321084386.XU Active CN219974579U (en) | 2023-05-08 | 2023-05-08 | Frosting prevention device for expansion end of expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974579U (en) |
-
2023
- 2023-05-08 CN CN202321084386.XU patent/CN219974579U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |