CN114542204A - Steam turbine thermal insulation shell - Google Patents
Steam turbine thermal insulation shell Download PDFInfo
- Publication number
- CN114542204A CN114542204A CN202111666693.4A CN202111666693A CN114542204A CN 114542204 A CN114542204 A CN 114542204A CN 202111666693 A CN202111666693 A CN 202111666693A CN 114542204 A CN114542204 A CN 114542204A
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- Prior art keywords
- ring
- wall
- shell
- cavity
- casing
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- 238000009413 insulation Methods 0.000 title claims description 14
- 238000009423 ventilation Methods 0.000 claims abstract description 21
- 239000012782 phase change material Substances 0.000 claims abstract description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 230000000694 effects Effects 0.000 claims description 16
- 239000007787 solid Substances 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/14—Casings modified therefor
- F01D25/145—Thermally insulated casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/10—Heating, e.g. warming-up before starting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a heat-insulating shell of a steam turbine, which comprises a shell and a movable assembly, wherein an accommodating cavity is arranged in the shell, an accommodating layer is formed on the tank wall of the shell in an inward concave manner, an outer heat-insulating layer is arranged outside the accommodating layer, a phase-change material is arranged on the inner wall of the accommodating layer, a ventilation cavity is arranged in the shell, a fixing column is arranged on the inner wall of the ventilation cavity, and the ventilation cavity is communicated with the accommodating cavity through an air inlet and an air outlet; the movable assembly comprises a movable ring and a fixed ring, the movable ring is rotatably connected with the inner wall of the accommodating layer, the inner wall of the movable ring protrudes to form a fixed thorn, the outer wall of the movable ring protrudes to form a limiting ring, and the outer wall of the shell is connected with the fixed ring; the inside high-temperature steam of casing can pass the chamber of ventilating, heats the casing through the chamber of ventilating, improves the rate of heating to the casing, reduces the preheating time of casing, reduces high-temperature steam's waste, is favorable to reducing the energy consumption and protects the environment.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to a heat-insulating shell of a steam turbine.
Background
The clean energy electricity used by human beings until now is generated by a steam turbine, and the clean energy electricity is boiled and gasified by burning petrochemical energy to form high-temperature and high-pressure steam, and the high-temperature and high-pressure steam is converted into mechanical energy by heat energy through the steam turbine to drive a generator to convert the petrochemical energy into electric energy, so that the clean energy electricity used by human beings randomly in production and life is formed. The efficiency of the heat engine for converting heat energy into electric energy is not high, and the heat engine is always a subject which is overcome by the world science and technology, and with the continuous improvement of materials and manufacturing technology, a generation of supercritical high-temperature and high-pressure steam turbine is born, the original heat engine efficiency which is only about 20 percent is improved by about 35 percent of the existing heat engine efficiency, and the heat engine efficiency reaches the limit. The mineral energy is required to be burned to maintain the effect, and the demand for electric energy is extremely increased along with the rapid development of human beings, so that the speed of requesting non-renewable resources is increased to the earth, and the petrochemical resources are increasingly deficient; meanwhile, the carbon dioxide discharged by petrochemical resources is largely combusted, so that the natural environment for human beings to live in is influenced.
The heat engine which is mature and used at present adopts the working principle that working medium absorbs heat from low temperature to high temperature and then releases heat from high temperature to low temperature to do work, so that the characteristic determines the unicity of providing a heat source and needs to be petrochemical resources of high-heat-value large materials; secondly, the working medium works in a super-high temperature state (although there is heat insulation treatment), because of the heat loss of the high-temperature surface, the work of the turbine is stably reduced, and the power of the turbine is reduced.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
Therefore, the technical problem solved by the invention is as follows: when the refrigeration system is in a low-load operation state, intermittent operation needs to be provided to meet the cooling demand, and during the intermittent operation process, the temperature of the system rises back to a large extent, and the pressure rises along with the temperature rise, so that the pressure rise is easy to damage the refrigeration system.
The present invention has been made in view of the problems occurring in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a steam turbine heat-insulating shell comprises a shell and a movable assembly, wherein an accommodating cavity is formed in the shell, an accommodating layer is formed by inward recessing of the shell wall, an outer heat-insulating layer is arranged outside the accommodating layer, a phase-change material is arranged on the inner wall of the accommodating layer, a ventilation cavity is formed in the shell, a fixing column is arranged on the inner wall of the ventilation cavity, and the ventilation cavity is communicated with the accommodating cavity through an air inlet and an air outlet; the activity subassembly includes loose ring and solid fixed ring, the loose ring rotates to connect and holds layer inner wall, and the protruding fixed thorn that forms of loose ring inner wall, the protruding spacing ring that forms of loose ring outer wall, solid fixed ring of casing outer wall connection to gu fixed ring inside is provided with the spacing groove, the spacing groove intercommunication holds layer, spacing inslot wall sliding connection spacing ring.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: the inner wall of the accommodating cavity is fixedly connected with a flow guide ring, and the flow guide ring is arranged on one side of the air inlet.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: the movable assembly further comprises a driving piece, the driving piece comprises a motor, a gear and a toothed ring, a fixed shell is arranged on the shell, the motor is connected with the inner wall of the fixed shell through a motor base, the motor is connected with the gear, the outer wall of the movable ring is fixedly connected with the inner wall of the toothed ring, and the gear is meshed with the toothed ring.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: one end of the shell is provided with a connecting ring, the outer wall of the connecting ring is fixedly connected with the inner wall of the air inlet pipe, the other end of the shell is provided with a tail ring, one end of the accommodating cavity is communicated with the air inlet pipe, and the other end of the accommodating cavity is communicated with the outside through the tail ring.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: the inner wall of the accommodating cavity and the inner wall of the connecting ring are respectively provided with a fixed rod, the fixed rods are connected with the outer wall of the clamping ring, and the axis of the clamping ring and the axis of the shell are positioned on the same straight line.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: the movable ring both ends sliding connection holds layer roof and diapire respectively to phase change material sets up in the layer inside that holds of movable ring inner wall.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: one end of the guide ring, which is far away from the air inlet, is contracted inwards, and the port of the air inlet is in smooth transition with the guide ring.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: and a closed space is formed inside the accommodating layer, the limiting groove and the fixed shell.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: still include control assembly, control assembly includes base, control ring and spring, base fixed mounting ventilates the intracavity wall to be provided with the cavity in the base, control ring sliding connection cavity opening, the protruding bulge loop that forms on the control ring, and bulge loop sliding connection cavity inner wall, cavity inner wall fixed connection spring one end, spring other end fixed connection bulge loop.
As a preferable aspect of the heat insulating casing for a steam turbine according to the present invention, wherein: the control assembly further comprises an iron ring, a coil and an iron core, the iron ring is connected with the iron core, the iron core corresponds to the spring, the iron core is inserted into the spring, the coil is wound on the iron ring, and the iron ring and the coil are arranged inside the base.
The invention has the beneficial effects that: the inside high-temperature steam of casing can pass the chamber of ventilating, heats the casing through the chamber of ventilating, improves the rate of heating to the casing, reduces the preheating time of casing, reduces high-temperature steam's waste, is favorable to reducing the energy consumption and protects the environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor. Wherein:
FIG. 1 is a cross-sectional view of a housing of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is an enlarged view of the invention at A in FIG. 1;
FIG. 4 is an enlarged view of FIG. 1 at B in accordance with the present invention;
FIG. 5 is an enlarged view at C of FIG. 1 according to the present invention;
fig. 6 is a schematic view of an iron ring structure according to the present invention.
Fig. 7 is a schematic view of the movable ring structure of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 5, for an embodiment of the present invention, the embodiment provides a thermal insulation casing for a steam turbine, including a casing 100 and a movable assembly 200, wherein a receiving cavity 101 is provided inside the casing 100, a receiving layer 102 is formed on a tank wall of the casing 100 by recessing inwards, an outer thermal insulation layer 102a is provided outside the receiving layer 102, a phase change material 102b is provided on an inner wall of the receiving layer 102, a ventilation cavity 103 is provided inside the casing 100, a fixing column 103a is provided on an inner wall of the ventilation cavity 103, the ventilation cavity 103 communicates with the receiving cavity 101 through an air inlet 103b and an air outlet 103c, air entering the casing 100 from the air inlet 103b enters the ventilation cavity 103, and re-enters the casing 100 from the air outlet 103 c; high-temperature steam is holding the inside turbine blade that promotes of chamber 101 and doing work, it is used for holding phase change material 102b to hold layer 102 inside, phase change material 102b can adopt current solid-liquid phase change material, phase change material 102b becomes liquid when being heated, absorb the heat, when phase change material 102b peripheral temperature becomes lower relatively, phase change material 102b releases the heat, become the solid, phase change material 102b can be through giving out heat, when the inside high-temperature steam of casing 100 reduces, for casing 100 provides the heat preservation effect, play the effect of balanced casing 100 inside temperature, the inside high-temperature steam of casing 100 can pass ventilation chamber 103, heat casing 100 through ventilation chamber 103, improve the rate of heating to casing 100, reduce the preheating time of casing 100, reduce the waste of high-temperature steam, be favorable to reducing energy consumption and environmental protection.
The movable assembly includes activity ring 201 and solid fixed ring 202, activity ring 201 rotates to connect and holds layer 102 inner wall, activity ring 201 is when holding layer 102 inner wall and rotate, can be broken phase change material 102b, make its piece ization, be favorable to the absorbed heat, reduce the heat loss, the protruding fixed thorn 201a that forms of activity ring 201 inner wall, be convenient for carry out the breakage to phase change material 102b through fixed thorn 201a, the protruding spacing ring 201b that forms of activity ring 201 outer wall, spacing ring 201b can improve the stability when activity ring 201 rotates, the solid fixed ring 202 of casing 100 outer wall connection, and gu fixed ring 202 is inside to be provided with spacing groove 202a, spacing groove 202a intercommunication holds layer 102, spacing groove 202a inner wall sliding connection spacing ring 201b, spacing ring 201b can rotate at spacing groove 202a inner wall.
Example 2
Referring to fig. 1 to 7, another embodiment of the present invention is different from the first embodiment in that: the inner wall of the accommodating cavity 101 is fixedly connected with a deflector ring 104, and the deflector ring 104 is arranged at one side of the gas inlet 103b, and the flow ring 104 can guide the gas entering the interior of the housing 100 from the gas inlet 103b to enter the interior of the ventilation cavity 103.
Specifically, the movable assembly 200 further comprises a driving member 203, the driving member 203 comprises a motor 203a, a gear 203b and a toothed ring 203c, the housing 100 is provided with a fixed shell 105, the motor 203a is connected with the inner wall of the fixed shell 105 through a motor base 203a-1 and can fix the motor 203a, the motor 203a is connected with the gear 203b, the outer wall of the movable ring 201 is fixedly connected with the inner wall of the toothed ring 203c, and the gear 203b is meshed with the toothed ring 203 c. When the motor 203a is operated, the gear 203b is driven to rotate, and the gear 203b drives the movable ring 201 to rotate through the toothed ring 203 c.
Specifically, one end of the housing 100 is provided with a connecting ring 106, the outer wall of the connecting ring 106 is fixedly connected with the inner wall of an air inlet pipe 107, high-temperature steam generated inside the boiler can enter the accommodating cavity 101 inside the housing 100 through the air inlet pipe 107, the other end of the housing 100 is provided with a tail ring 108, an exhaust pipe can be connected to the tail ring 108, one end of the accommodating cavity 101 is communicated with the air inlet pipe 107, the other end of the accommodating cavity 101 is communicated with the outside through the tail ring 108, and the high-temperature steam inside the accommodating cavity 101 can be exhausted to the outside through the tail ring 108 and the exhaust pipe.
Specifically, the inner wall of the accommodating cavity 101 and the inner wall of the connecting ring 106 are respectively provided with a fixing rod 109, the fixing rod 109 is connected with the outer wall of the clamping ring 109a, the clamping ring 109a can be fixed through the fixing rod 109, the inner wall of the clamping ring 109a is connected with the steam turbine main shaft in a sliding mode, the main shaft can be limited, the stability of the main shaft during rotation is achieved, and the axis of the clamping ring 109a and the axis of the shell 100 are located on the same straight line.
In the invention, two ends of the movable ring 201 are respectively connected with the top wall and the bottom wall of the accommodating layer 102 in a sliding manner, and the phase-change material 102b is arranged inside the accommodating layer 102 on the inner wall of the movable ring 201, so that the phase-change material 102b can adjust the temperature inside the accommodating layer 102 through solid-liquid change, and a heat preservation effect is achieved.
In the present invention, specifically, one end of the deflector ring 104, which is far from the air inlet 103b, is inwardly contracted, and the port of the air inlet 103b is in smooth transition with the deflector ring 104, so that the deflector ring 104 is favorable for guiding the air entering the interior of the housing 100 from the air inlet 103b into the interior of the ventilation cavity 103.
In the invention, a closed space is formed inside the accommodating layer 102, the limiting groove 202a and the fixing shell 105, which is beneficial to improving the heat preservation effect and preventing the phase change material 102b from being scattered.
Specifically, the invention further comprises a control assembly 300, wherein the control assembly 300 comprises a base 301, a control ring 302 and a spring 303, the base 301 is fixedly installed on the inner wall of the ventilation cavity 103, a cavity 301a is formed in the base 301, the control ring 302 is slidably connected with an opening of the cavity 301, a protruding ring 302a is formed on the control ring 302, the protruding ring 302a is slidably connected with the inner wall of the cavity 301, one end of the spring 303 is fixedly connected with the inner wall of the cavity 301, and the other end of the spring 303 is fixedly connected with the protruding ring 302 a. The control ring 302 can slide on the inner wall of the opening of the cavity 301, the protruding ring 302a can slide on the inner wall of the cavity 301, the protruding ring 302a and the control ring 302 can be pushed to slide to the side far away from the spring 303 under the action of the elastic force of the spring 303, and the control ring 302 can block the air inlet 103b and prevent high-temperature steam from entering the ventilation cavity 103 from the air inlet 103 b; when the steam turbine normally operates, the control ring 302 is pushed to block the air inlet 103b through the protruding ring 302a under the action of the elastic force of the spring 303, so that high-temperature steam is prevented from entering the ventilation cavity 103 from the air inlet 103b, the heat loss of the high-temperature steam can be reduced, and the work efficiency of the steam turbine is improved.
Specifically, in the present invention, the control assembly 300 further includes an iron ring 304, a coil 305, and an iron core 306, wherein the iron ring 304 is connected to the iron core 306, the iron core 306 is disposed corresponding to the spring 303, the iron core 306 is inserted into the spring 303, the coil 305 is wound on the iron ring 304, and the iron ring 304 and the coil 305 are disposed inside the base 301. By electrifying the coil 305, the coil 305 generates a magnetic field, the iron ring 304 and the coil 305 form an electromagnet, and magnetize the iron core 306, the iron core 306 adsorbs the protruding ring 302a, the protruding ring 302a slides against the elastic force of the spring 303, the protruding ring 302a is adsorbed on the iron core 306, the protruding ring 302a drives the control ring 302 to move, the air inlet 103b is exposed, and at the moment, high-temperature steam can enter the ventilation cavity 103 from the air inlet 103 b.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A steam turbine thermal insulation shell is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the air-permeable shell comprises a shell (100), wherein a containing cavity (101) is formed in the shell (100), a containing layer (102) is formed by inward recessing on the tank wall of the shell (100), an outer heat-insulating layer (102a) is arranged outside the containing layer (102), a phase-change material (102b) is arranged on the inner wall of the containing layer (102), a ventilation cavity (103) is formed in the shell (100), a fixing column (103a) is arranged on the inner wall of the ventilation cavity (103), and the ventilation cavity (103) is communicated with the containing cavity (101) through an air inlet (103b) and an air outlet (103 c);
movable assembly (200), the movable assembly includes activity ring (201) and solid fixed ring (202), activity ring (201) rotates to connect and holds layer (102) inner wall, and activity ring (201) inner wall is protruding to form fixed thorn (201a), and activity ring (201) outer wall is protruding to form spacing ring (201b), casing (100) outer wall connection solid fixed ring (202) to solid fixed ring (202) inside is provided with spacing groove (202a), and spacing groove (202a) intercommunication holds layer (102), spacing groove (202a) inner wall sliding connection spacing ring (201 b).
2. The turbine insulation shell according to claim 1, wherein: the inner wall of the accommodating cavity (101) is fixedly connected with a flow guide ring (104), and the flow guide ring (104) is arranged on one side of the air inlet (103 b).
3. The turbine insulation shell according to claim 2, wherein: the movable assembly (200) further comprises a driving piece (203), the driving piece (203) comprises a motor (203a), a gear (203b) and a toothed ring (203c), a fixed shell (105) is arranged on the shell (100), the motor (203a) is connected with the inner wall of the fixed shell (105) through a motor base (203a-1), the motor (203a) is connected with the gear (203b), the outer wall of the movable ring (201) is fixedly connected with the inner wall of the toothed ring (203c), and the gear (203b) is meshed with the toothed ring (203 c).
4. The turbine insulation shell according to claim 3, wherein: casing (100) one end is provided with go-between (106) to go-between (106) outer wall fixed connection intake pipe (107) inner wall, casing (100) other end is provided with tail ring (108), holds chamber (101) one end intercommunication intake pipe (107), holds chamber (101) other end and passes through tail ring (108) intercommunication external world.
5. The turbine insulation shell according to claim 4, wherein: the inner wall of the accommodating cavity (101) and the inner wall of the connecting ring (106) are respectively provided with a fixing rod (109), the fixing rod (109) is connected with the outer wall of the clamping ring (109a), and the axis of the clamping ring (109a) and the axis of the shell (100) are positioned on the same straight line.
6. The turbine insulation shell according to claim 5, wherein: the two ends of the movable ring (201) are respectively connected with the top wall and the bottom wall of the accommodating layer (102) in a sliding mode, and the phase change materials (102b) are arranged inside the accommodating layer (102) on the inner wall of the movable ring (201).
7. The turbine insulation shell according to claim 6, wherein: one end of the guide ring (104) far away from the air inlet (103b) is contracted inwards, and the port of the air inlet (103b) is in smooth transition with the guide ring (104).
8. The turbine insulation shell according to claim 7, wherein: the accommodating layer (102), the limiting groove (202a) and the fixed shell (105) form a closed space.
9. The turbine insulation shell according to claim 1, wherein: still include control assembly (300), control assembly (300) include base (301), control ring (302) and spring (303), base (301) fixed mounting ventilates chamber (103) inner wall to be provided with cavity (301a) in base (301), control ring (302) sliding connection cavity (301) opening, the protruding bulge loop (302a) that forms on control ring (302), and bulge loop (302a) sliding connection cavity (301) inner wall, cavity (301) inner wall fixed connection spring (303) one end, spring (303) other end fixed connection bulge loop (302 a).
10. The turbine insulation shell according to claim 9, wherein: control assembly (300) still include hoop (304), coil (305) and iron core (306), hoop (304) is connected iron core (306) to iron core (306) corresponds spring (303) and sets up, and inside iron core (306) inserted spring (303), wound coil (305) on hoop (304), and hoop (304) and coil (305) set up inside base (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111666693.4A CN114542204B (en) | 2021-12-31 | 2021-12-31 | Steam turbine heat preservation shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111666693.4A CN114542204B (en) | 2021-12-31 | 2021-12-31 | Steam turbine heat preservation shell |
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| Publication Number | Publication Date |
|---|---|
| CN114542204A true CN114542204A (en) | 2022-05-27 |
| CN114542204B CN114542204B (en) | 2023-10-31 |
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| CN202111666693.4A Active CN114542204B (en) | 2021-12-31 | 2021-12-31 | Steam turbine heat preservation shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4232993A (en) * | 1977-06-13 | 1980-11-11 | Hitachi, Ltd. | Low pressure casing for a steam turbine |
| EP2937523A1 (en) * | 2014-04-25 | 2015-10-28 | Siemens Aktiengesellschaft | Steam turbine with means for warming the casing |
| US20180156076A1 (en) * | 2015-06-02 | 2018-06-07 | Siemens Aktiengesellschaft | Method for decelerating a cooling down of a flow conducting unit, and flow conducting unit |
| CN110656987A (en) * | 2019-09-18 | 2020-01-07 | 中国电建集团山东电力建设第一工程有限公司 | Sealed casing and steam turbine |
| CN111335971A (en) * | 2020-04-09 | 2020-06-26 | 上海电力大学 | Steam turbine preheating device with phase-change temperature control function |
| CN211093206U (en) * | 2019-12-12 | 2020-07-28 | 浙江奔创智能科技有限公司 | A kind of container |
| CN112815755A (en) * | 2020-12-30 | 2021-05-18 | 国网河北省电力有限公司电力科学研究院 | Energy storage device |
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2021
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| EP2937523A1 (en) * | 2014-04-25 | 2015-10-28 | Siemens Aktiengesellschaft | Steam turbine with means for warming the casing |
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| CN211093206U (en) * | 2019-12-12 | 2020-07-28 | 浙江奔创智能科技有限公司 | A kind of container |
| CN111335971A (en) * | 2020-04-09 | 2020-06-26 | 上海电力大学 | Steam turbine preheating device with phase-change temperature control function |
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