CN207499920U - 180 ° of tangential admission low pressure casting inner casings and low-voltage module - Google Patents
180 ° of tangential admission low pressure casting inner casings and low-voltage module Download PDFInfo
- Publication number
- CN207499920U CN207499920U CN201721672544.8U CN201721672544U CN207499920U CN 207499920 U CN207499920 U CN 207499920U CN 201721672544 U CN201721672544 U CN 201721672544U CN 207499920 U CN207499920 U CN 207499920U
- Authority
- CN
- China
- Prior art keywords
- air intake
- low
- volute structure
- internal cylinder
- pressure internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
180 ° of tangential admission low pressure casting inner casings and low-voltage module, are related to low-pressure internal cylinder field.The utility model is to solve the low-pressure internal cylinder that existing welded-steel plate construction is formed, and vapour chamber is unable to control, and steam flow is uneven, and single air intake is into the cast iron inner casing of vapour form that there are the problem of air intake is single, and throttle flow is small.180 ° of first air intake and the second air intake are symmetricly set on volute structure, wherein the first air intake is located at the entrance of volute structure, extraction opening is provided between the first air intake and the second air intake and in volute structure bottom, steam is taken away by the extraction opening, the inner casing of volute structure is circumferentially provided with venthole, steam flow is entered by the first air intake and the second air intake in volute structure, is flowed into outer shell from venthole.Low-pressure internal cylinder and low-voltage module vapour chamber the steam flow flowing of the structure are uniform, and throttle flow is big.
Description
Technical field
The present invention relates to 180 ° of tangential admission low pressure casting inner casings.Belong to low-pressure internal cylinder field.
Background technology
Existing steam turbine low-pressure inner casing is mostly cast iron inner casing of the either single air intake of welded-steel plate construction into vapour form.
Although the low-pressure internal cylinder of welded-steel plate construction has the characteristics that structure is changeable, it is simple to realize, can not realize into vapour chamber
Control, the slave air intake that steam can not be orderly is flowed into low-pressure internal cylinder, and steam flow is uneven；Single air intake is into the casting of vapour form
Although iron inner casing can be controlled into vapour chamber, air intake is single, and throttle flow is small.
Utility model content
The utility model is to solve the low-pressure internal cylinder that existing welded-steel plate construction is formed, and vapour chamber is unable to control,
Steam flow is uneven, and single air intake is into the cast iron inner casing of vapour form that there are the problem of air intake is single, and throttle flow is small.Now provide
180 ° of tangential admission low pressure casting inner casings and low-voltage module.
180 ° of tangential admission low pressure casting inner casings, 180 ° of tangential admission low pressure castings inner casing be low-pressure internal cylinder 1, low pressure
Inner casing 1 includes volute structure 1-1, the first air intake 1-2, the second air intake 1-3, extraction opening 1-4 and venthole 1-5,
1-3180 ° of first air intake 1-2 and the second air intake are symmetricly set on volute structure 1-1, wherein first into vapour
Mouth 1-2 is located at the entrance of volute structure 1-1,
Extraction opening 1-4 is provided between the first air intake 1-2 and the second air intake 1-3 and in volute structure 1-1 bottoms, is led to
Extraction opening 1-4 is crossed to take steam away,
The inner casing of volute structure 1-1 is circumferentially provided with venthole 1-5,
Steam flow is entered by the first air intake 1-2 and the second air intake 1-3 in volute structure 1-1, is flowed into from venthole 1-5
To in outer shell 3.
Low-voltage module, the low-voltage module include n low-pressure internal cylinder 1, n >=2,
N 1 parallel arranged of low-pressure internal cylinder, each low-pressure internal cylinder 1 include volute structure 1-1, the first air intake 1-2, the
Two air intake 1-3, extraction opening 1-4 and venthole 1-5,
Each the structure of low-pressure internal cylinder 1 is：1-3180 ° of first air intake 1-2 and the second air intake are symmetricly set on spiral case
On structure 1-1, wherein the first air intake 1-2 is located at the entrance of volute structure 1-1,
Extraction opening 1-4 is provided between the first air intake 1-2 and the second air intake 1-3 and in volute structure 1-1 bottoms, is led to
Extraction opening 1-4 is crossed to take steam away,
The inner casing of volute structure 1-1 is circumferentially provided with venthole 1-5,
Steam flow is entered by the first air intake 1-2 and the second air intake 1-3 of n low-pressure internal cylinder 1 in volute structure 1-1,
It is flowed into outer shell 3 from the venthole 1-5 of n low-pressure internal cylinder 1.
The beneficial effects of the utility model are：
The utility model low-pressure internal cylinder is volute structure and tool is there are two air intake, and the first air intake is located at volute structure
Entrance, the second air intake are located on volute structure, and the position of the second air intake is equivalent to the first air intake around volute structure
Axle center rotate 180 °, steam flow is flowed, finally along volute structure by two air intakes in the low-pressure internal cylinder of volute structure
In inner casing circumferential flow to outer shell；The application's is simple for structure, the vapour chamber of volute structure small into vapour chamber whirlpool of volute structure
Uniform compared to the vapour chamber steam flow flowing of existing welded-steel plate construction, steam flow is good in the vapour intracavitary flow behavior of volute structure, this
There are two air intakes for application tool, and throttle flow is big, is conducive to improve the thermal efficiency of whole unit.
Description of the drawings
Fig. 1 is the structure diagram of steam turbine low-pressure module；
Fig. 2 is sectional view at the A-A of Fig. 1；
Fig. 3 is the structure diagram of low-pressure internal cylinder.
Specific embodiment
Specific embodiment one：Present embodiment is illustrated referring to figs. 1 to Fig. 3,180 ° described in present embodiment are cut
To into vapour low pressure casting inner casing, 180 ° of tangential admission low pressure castings inner casing is low-pressure internal cylinder 1, and low-pressure internal cylinder 1 includes spiral case
Structure 1-1, the first air intake 1-2, the second air intake 1-3, extraction opening 1-4 and venthole 1-5,
1-3180 ° of first air intake 1-2 and the second air intake are symmetricly set on volute structure 1-1, wherein first into vapour
Mouth 1-2 is located at the entrance of volute structure 1-1,
Extraction opening 1-4 is provided between the first air intake 1-2 and the second air intake 1-3 and in volute structure 1-1 bottoms, is led to
Extraction opening 1-4 is crossed to take steam away,
The inner casing of volute structure 1-1 is circumferentially provided with venthole 1-5,
Steam flow is entered by the first air intake 1-2 and the second air intake 1-3 in volute structure 1-1, is flowed into from venthole 1-5
To in outer shell 3.
Specific embodiment two：Present embodiment is to 180 ° of tangential admission low pressure castings described in specific embodiment one
Inner casing is described further, in present embodiment, each connection at the first air intake 1-2 and the second air intake 1-3 of low-pressure internal cylinder 1
One communicating pipe 2, steam flow is by respectively enteing in the first air intake 1-2 and the second air intake 1-3 communicating pipe 2.
Specific embodiment three：Low-voltage module described in present embodiment, the low-voltage module include n low-pressure internal cylinder 1,
N >=2,
N 1 parallel arranged of low-pressure internal cylinder, each low-pressure internal cylinder 1 include volute structure 1-1, the first air intake 1-2, the
Two air intake 1-3, extraction opening 1-4 and venthole 1-5,
Each the structure of low-pressure internal cylinder 1 is：1-3180 ° of first air intake 1-2 and the second air intake are symmetricly set on spiral case
On structure 1-1, wherein the first air intake 1-2 is located at the entrance of volute structure 1-1,
Extraction opening 1-4 is provided between the first air intake 1-2 and the second air intake 1-3 and in volute structure 1-1 bottoms, is led to
Extraction opening 1-4 is crossed to take steam away,
The inner casing of volute structure 1-1 is circumferentially provided with venthole 1-5,
Steam flow is entered by the first air intake 1-2 and the second air intake 1-3 of n low-pressure internal cylinder 1 in volute structure 1-1,
It is flowed into outer shell 3 from the venthole 1-5 of n low-pressure internal cylinder 1.
In present embodiment, in practical application, 1 or n low-pressure internal cylinder 1 can be selected as needed into traveling
Vapour, n >=2.
Specific embodiment four：Present embodiment is that the low-voltage module described in specific embodiment three is made furtherly
It is bright, in present embodiment, by connecting a communicating pipe 2 at n the first air intake 1-2 of n low-pressure internal cylinder 1,
By connecting another communicating pipe 2 at n the second air intake 1-3 of n low-pressure internal cylinder 1, two communicating pipe of steam flow 2
Into in volute structure 1-1.
Specific embodiment five：Present embodiment is that the low-voltage module described in specific embodiment three is further illustrated,
In present embodiment, the inner ring of each volute structure 1-1 is both provided with the rotor of steam turbine, movable vane on the rotor of steam turbine,
For stator blade on the inner wall of volute structure 1-1, the thermal energy that stator blade is used to discharge steam makes it be transformed into kinetic energy to push movable vane, makes
Rotor rotation thus steam turbine is made to do work.
Claims (4)
1.180 ° of tangential admission low pressure casting inner casings, which is characterized in that 180 ° of tangential admission low pressure castings inner casing is low pressure
Inner casing (1), low-pressure internal cylinder (1) include volute structure (1-1), the first air intake (1-2), the second air intake (1-3), extraction opening
(1-4) and venthole (1-5),
180 ° of first air intake (1-2) and the second air intake (1-3) are symmetricly set on volute structure (1-1), wherein first into
Steam ports (1-2) positioned at volute structure (1-1) entrance,
Extraction opening (1- is provided between the first air intake (1-2) and the second air intake (1-3) and in volute structure (1-1) bottom
4), steam is taken away by the extraction opening (1-4),
The inner casing of volute structure (1-1) is circumferentially provided with venthole (1-5),
Steam flow is interior into volute structure (1-1) by the first air intake (1-2) and the second air intake (1-3), from venthole (1-5)
It is inner to be flowed into outer shell (3).
2. 180 ° of tangential admission low pressure casting inner casings according to claim 1, which is characterized in that the first of low-pressure internal cylinder (1)
A communicating pipe (2) is respectively connected at air intake (1-2) and the second air intake (1-3), steam flow is by respectively enteing communicating pipe (2)
In one air intake (1-2) and the second air intake (1-3).
3. low-voltage module, which is characterized in that the low-voltage module include n low-pressure internal cylinder (1), n >=2,
N low-pressure internal cylinder (1) parallel arranged, each low-pressure internal cylinder (1) include volute structure (1-1), the first air intake (1-
2), the second air intake (1-3), extraction opening (1-4) and venthole (1-5),
Each the structure of low-pressure internal cylinder (1) is：First air intake (1-2) is symmetricly set on snail with 180 ° of the second air intake (1-3)
On shell structure (1-1), wherein entrance of the first air intake (1-2) positioned at volute structure (1-1),
Extraction opening (1- is provided between the first air intake (1-2) and the second air intake (1-3) and in volute structure (1-1) bottom
4), steam is taken away by the extraction opening (1-4),
The inner casing of volute structure (1-1) is circumferentially provided with venthole (1-5),
Steam flow is by the first air intake (1-2) of n low-pressure internal cylinder (1) and the second air intake (1-3) into volute structure (1-1)
It is interior, it is inner to be flowed into outer shell (3) from the venthole (1-5) of n low-pressure internal cylinder (1).
4. low-voltage module according to claim 3, which is characterized in that n the first air intakes (1-2) of n low-pressure internal cylinder (1)
Place is connected by a communicating pipe (2),
It is connected at n the second air intakes (1-3) of n low-pressure internal cylinder (1) by another communicating pipe (2), two connections of steam flow
It is interior into volute structure (1-1) to manage (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672544.8U CN207499920U (en) | 2017-12-05 | 2017-12-05 | 180 ° of tangential admission low pressure casting inner casings and low-voltage module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672544.8U CN207499920U (en) | 2017-12-05 | 2017-12-05 | 180 ° of tangential admission low pressure casting inner casings and low-voltage module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207499920U true CN207499920U (en) | 2018-06-15 |
Family
ID=62508871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721672544.8U Active CN207499920U (en) | 2017-12-05 | 2017-12-05 | 180 ° of tangential admission low pressure casting inner casings and low-voltage module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207499920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005738A (en) * | 2017-12-05 | 2018-05-08 | 哈尔滨汽轮机厂有限责任公司 | 180 ° of tangential admission low pressure casting inner casings |
| CN109268074A (en) * | 2018-07-19 | 2019-01-25 | 哈尔滨汽轮机厂有限责任公司 | A kind of low pressure nuclear steam turbine of 360 ° of spiral cases of band into vapour formula inner casing |
-
2017
- 2017-12-05 CN CN201721672544.8U patent/CN207499920U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005738A (en) * | 2017-12-05 | 2018-05-08 | 哈尔滨汽轮机厂有限责任公司 | 180 ° of tangential admission low pressure casting inner casings |
| CN109268074A (en) * | 2018-07-19 | 2019-01-25 | 哈尔滨汽轮机厂有限责任公司 | A kind of low pressure nuclear steam turbine of 360 ° of spiral cases of band into vapour formula inner casing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103591050B (en) | Compressor housing component | |
| CN207499920U (en) | 180 ° of tangential admission low pressure casting inner casings and low-voltage module | |
| CN103306979B (en) | Electronic vacuum pump for new energy vehicle brake vacuum booster | |
| CN105986885A (en) | Turbocharger | |
| CN102691527B (en) | Groove structure on back of open centripetal turbine blade | |
| CN105201568A (en) | Low-pressure steam turboset with 360-degree volute casing admission low-pressure inner cylinder | |
| CN103967812A (en) | Reverse-flow type counter-rotating adsorption gas compressor | |
| CN108868889A (en) | Steam turbine and power generator | |
| CN203717450U (en) | Novel air inlet structure of air compressor of turbocharger for automobile | |
| CN104653474A (en) | Symmetrical high-speed double-suction pump | |
| CN108005738A (en) | 180 ° of tangential admission low pressure casting inner casings | |
| WO2020078023A1 (en) | Liquid piston air compressor | |
| CN201730826U (en) | Axial double-action type liquid-ring vacuum pump | |
| CN111350549A (en) | Cooling structure suitable for be rich in and fire working medium turbine high temperature quiet leaf | |
| RU2011127686A (en) | STEAM TURBINE SHELL | |
| CN106761972B (en) | A kind of axial admission radial direction exhaust casting volute structure | |
| CN205089381U (en) | Low pressure turbine unit with 360 spiral case low pressure inner casing that admits air | |
| CN209354364U (en) | A kind of superposing type blade wheel structure | |
| CN102536411A (en) | Gas exhaust manifold for straight four-cylinder worm wheel supercharging engine | |
| CN204371783U (en) | There is the guide ring of two-sided centrifugal pinch roller miniature turbine jet engines | |
| CN208749409U (en) | Steam turbine and power generator | |
| CN207454325U (en) | A kind of low noise efficient rate compressor | |
| CN208168983U (en) | A kind of centrifugal gas power turbine | |
| CN108119281A (en) | A kind of new twin-jet nozzle inclined-jet turbine | |
| CN203146038U (en) | Steam inlet valve group casing of divided-flow turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |