CN219176409U - Cylinder body heat preservation mechanism of steam turbine of thermal power plant - Google Patents
Cylinder body heat preservation mechanism of steam turbine of thermal power plant Download PDFInfo
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- CN219176409U CN219176409U CN202223142405.8U CN202223142405U CN219176409U CN 219176409 U CN219176409 U CN 219176409U CN 202223142405 U CN202223142405 U CN 202223142405U CN 219176409 U CN219176409 U CN 219176409U
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Abstract
The utility model discloses a cylinder body heat preservation mechanism of a steam turbine of a thermal power plant, which comprises: the heat preservation mechanism comprises a steam turbine shell, a bottom plate, heat preservation shells, connecting belts, fillers and ejector rods, wherein the steam turbine shell is located on the top surface of the bottom plate, the heat preservation shells are arranged outside the steam turbine shell, the inner wall surfaces of the heat preservation shells are tightly attached to the outer wall surfaces of the steam turbine shell, the bottoms of the two sides of the heat preservation shells are connected with the bottom plate through fixing bolts, the heat preservation shells are arranged in a hollow mode, the tops of the heat preservation shells are provided with top covers, the top covers are connected with the tops of the heat preservation shells through the fixing bolts, positioning pins are arranged on the inner top surface of the heat preservation shells, two positioning pins are arranged at intervals, and the fillers are arranged in the heat preservation shells.
Description
Technical Field
The utility model relates to the technical field of auxiliary devices of steam turbines, in particular to a cylinder body heat preservation mechanism of a steam turbine of a thermal power plant.
Background
The steam turbine is also called a steam turbine engine, and is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with a blade row rotates and simultaneously does work outwards. The steam turbine is the main equipment of modern thermal power plant, also is used in metallurgical industry, chemical industry, naval vessel power plant, and when the steam turbine is normally used, need lay the heat preservation material in the casing outside.
In the utility model patent with the patent publication number of CN217176724U, a cylinder body heat preservation mechanism of a steam turbine is provided, the steam turbine can be protected from outside through the shielding of an outer protective sleeve shell by arranging a protection mechanism, the steam turbine can be effectively insulated through heat preservation filler, and the heat preservation filler can be timely supplemented and replaced through a filler door.
Therefore, it is necessary to provide a cylinder heat insulation mechanism of a steam turbine of a thermal power plant to solve the above technical problems.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a cylinder body heat preservation mechanism of a steam turbine of a thermal power plant, which solves the problems of complicated replacement of filler and poor heat preservation effect of the conventional device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a cylinder block thermal insulation mechanism of a steam turbine of a thermal power plant, comprising: the steam turbine comprises a steam turbine shell, a bottom plate, a heat preservation shell, a connecting belt, a filler and a push rod;
the steam turbine casing is located at the bottom plate top surface, the outside of steam turbine casing is provided with the heat preservation shell, the inner wall of heat preservation shell is closely laminated with the outer wall of steam turbine casing, the both sides bottom of heat preservation shell is connected with the bottom plate through fixing bolt, the inside cavity of heat preservation shell sets up, and its top is equipped with the top cap, the top cap is connected with the top of heat preservation shell through fixing bolt, the interior top surface of heat preservation shell is equipped with the locating pin, the locating pin interval is equipped with two, the inside of heat preservation shell is equipped with the filler, the both sides of filler all are equipped with the connecting band, the locating hole has been seted up to the top surface of connecting band, the locating hole is connected with the locating pin is inserted, be equipped with the filler between the connecting band, the filler is formed by a plurality of little unit integral type concatenation, be the intercommunication state in the filler, wherein be equipped with the ejector pin between the filler at top.
In one embodiment, the ejector rod comprises a rod body, a handle, an air inlet and a communicating pipe, wherein the rod body is hollow, two sides of the rod body are fixedly connected with the connecting belt, the handle is arranged on the top surface of the rod body, the air inlet is formed in one side of the handle, the air inlet is provided with a matched sealing door, and two sides of the rod body are connected with the filler through the communicating pipe, so that an air flow space is formed between the rod body and the filler.
In one embodiment, the filler is composed of a plurality of small units, wherein the small units are composed of an air bag and a rock wool layer, and both sides of the air bag are covered with the rock wool layer.
In one embodiment, both sides of the balloon are connected to the connection band by a reinforcing plate, and the outer surface of the balloon is coated with a high temperature resistant material.
In one embodiment, the connecting edges of the top cover and the heat preservation shell are provided with sealing gaskets.
The beneficial effects of the utility model are as follows:
(1) According to the utility model, the top cover is removed, the top of the heat preservation shell is in an exposed state, the two bottom ends of the filler and the connecting belt are respectively plugged into the heat preservation shell, the two bottom ends are connected with the locating pin in a plug-in manner through the locating hole to form fixed limit, after the filler is placed, air is injected into the air inlet through the external air pipe, the air enters the filler through the communicating pipe to form the air heat insulation layer, so that the whole heat preservation effect is better, the sealing door of the air inlet is closed after the air inflation is completed, the top cover is installed, the top cover is removed when maintenance is needed, the air inlet is opened, and the ejector rod, the connecting belt and the filler are extracted through the handle.
(2) According to the utility model, the rock wool layer is tightly attached to the inside of the heat insulation shell through the expansion of the air bag, and meanwhile, the integral heat insulation effect is better through the arrangement of the rock wool layer and the gas heat insulation layer of the air bag.
Drawings
FIG. 1 is a diagram of the overall structure of the present utility model;
FIG. 2 is a detailed view of the internal structure of the present utility model;
fig. 3 is a detailed view of the top plate of the present utility model.
FIG. 4 is a detailed view of the packing of the present utility model.
Wherein, the names corresponding to the reference numerals are: the steam turbine shell 1, the bottom plate 2, the heat preservation shell 3, the top cover 31, the positioning pin 32, the connecting belt 4, the positioning hole 41, the packing 5, the air bag 51, the rock wool layer 52, the ejector rod 6, the rod body 61, the handle 62, the air inlet 63 and the communicating pipe 64.
Detailed Description
The utility model will be further illustrated by the following description and examples, which include but are not limited to the following examples.
As shown in fig. 1-2, the cylinder body heat preservation mechanism of a steam turbine of a thermal power plant provided by the utility model comprises: the steam turbine comprises a steam turbine shell 1, a bottom plate 2, a heat preservation shell 3, a connecting belt 4, a filler 5 and a push rod 6;
as shown in fig. 1-3, the steam turbine casing 1 is located at the top surface of the bottom plate 2, the heat preservation casing 3 is arranged at the outer part of the steam turbine casing 1, the inner wall surface of the heat preservation casing 3 is tightly attached to the outer wall surface of the steam turbine casing 1, the bottoms of the two sides of the heat preservation casing 3 are connected with the bottom plate 2 through fixing bolts, the inside of the heat preservation casing 3 is hollow, a top cover 31 is arranged at the top of the heat preservation casing 3, the top cover 31 is connected with the top of the heat preservation casing 3 through fixing bolts, positioning pins 32 are arranged on the inner top surface of the heat preservation casing 3, two positioning pins 32 are arranged at intervals, packing 5 are arranged in the heat preservation casing 3, connecting belts 4 are arranged on the two sides of the packing 5, positioning holes 41 are formed in an inserted mode with the positioning pins 32, packing 5 are arranged between the connecting belts 4, the packing 5 is formed by integrally splicing a plurality of small units, the packing 5 is in a communicating state, and 6 is arranged between the packing 5 at the top most.
Preferably, in one embodiment, as shown in fig. 2-3, the ejector rod 6 is composed of a rod body 61, a handle 62, an air inlet 63 and a communicating pipe 64, the rod body 61 is hollow, two sides of the rod body 61 are fixedly connected with the connecting belt 4, the handle 62 is arranged on the top surface of the rod body 61, the air inlet 63 is arranged on one side of the handle 62, the air inlet 63 is provided with a matched sealing door, two sides of the rod body 61 are connected with the filler 5 through the communicating pipe 64, so that an air flow space is formed between the rod body 61 and the filler 5, the top cover 31 is removed, the top of the heat-insulating shell 3 is in an exposed state, the filler 5 and two bottom ends of the connecting belt 4 are respectively plugged into the heat-insulating shell 3 to form a fixed limit through the inserting connection of the positioning hole 41 and the positioning pin 32, after the filler 5 is placed, air is injected into the air inlet 63 through an external air pipe to form an air insulation layer through the communicating pipe 64, the whole heat-insulating effect is better, the sealing door of the air inlet 63 is closed after the air inflation is completed, the top cover 31 is installed, and when maintenance is needed, the top cover 31 is removed, the top cover is opened, the top cover 6, the filler 5 and the air inlet 63 and the filler 4 are connected through the air inlet 63 and the handle 4.
Preferably, in one embodiment, the packing 5 is composed of a plurality of small units, wherein the small units are composed of an air bag 51 and a rock wool layer 52, both sides of the air bag 51 are covered with the rock wool layer 52, after the air injection is completed, the air bag 51 is inflated to enable the rock wool layer 52 to be tightly attached to the inside of the heat insulation shell 3, and meanwhile, the whole heat insulation effect is better due to the arrangement of the rock wool layer 52 and the gas heat insulation layer of the air bag 51.
Preferably, in one embodiment, both sides of the air bag 51 are connected to the connection band 4 through a reinforcing plate, and the outer surface of the air bag 51 is coated with a high temperature resistant material.
Preferably, in one embodiment, the connecting edges of the top cover 31 and the thermal insulation shell 3 are provided with sealing gaskets, so as to make the air tightness of the thermal insulation shell 3 better.
The working principle of the utility model is as follows:
during operation, the top cover 31 is removed, the top of the heat insulation shell 3 is in an exposed state, two bottom ends of the packing 5 and the connecting belt 4 are respectively plugged into the heat insulation shell 3, the packing 5 is inserted into the heat insulation shell through the positioning holes 41 and the positioning pins 32 to form fixed limit, after the packing 5 is placed, air is injected into the air inlet 63 through an external air pipe, the air enters the packing 5 through the communicating pipe 64 to form an air insulating layer, the whole heat insulation effect is better, the sealing door of the air inlet 63 is closed after the air filling is completed, the top cover 31 is installed, the top cover 31 is removed, the air inlet 63 is opened, the ejector rod 6, the connecting belt 4 and the packing 5 are pulled out through the handle 62, after the air filling is completed, the air bag 51 is expanded to enable the inner lamination of the rock wool layer 52 and the heat insulation shell 3 to be more compact, and meanwhile, the whole heat insulation effect is better through the arrangement of the air insulating layer of the rock wool layer 52 and the air bag 51.
The above embodiment is only one of the preferred embodiments of the present utility model, and should not be used to limit the scope of the present utility model, but all the insubstantial modifications or color changes made in the main design concept and spirit of the present utility model are still consistent with the present utility model, and all the technical problems to be solved are included in the scope of the present utility model.
Claims (5)
1. A cylinder body heat preservation mechanism of a steam turbine of a thermal power plant is characterized in that: comprising the following steps: a steam turbine shell, a bottom plate and a heat preservation shell;
the steam turbine casing is located at the bottom plate top surface, the outside of steam turbine casing is provided with the heat preservation shell, the inner wall of heat preservation shell is closely laminated with the outer wall of steam turbine casing, the both sides bottom of heat preservation shell is connected with the bottom plate through fixing bolt, the inside cavity of heat preservation shell sets up, and its top is equipped with the top cap, the top cap is connected with the top of heat preservation shell through fixing bolt, the interior top surface of heat preservation shell is equipped with the locating pin, the locating pin interval is equipped with two, the inside of heat preservation shell is equipped with the filler, the both sides of filler all are equipped with the connecting band, the locating hole has been seted up to the top surface of connecting band, the locating hole is connected with the locating pin is inserted, be equipped with the filler between the connecting band, the filler is formed by a plurality of little unit integral type concatenation, be the intercommunication state in the filler, wherein be equipped with the ejector pin between the filler at top.
2. The cylinder heat preservation mechanism of a steam turbine of a thermal power plant according to claim 1, wherein the ejector rod consists of a rod body, a handle, an air inlet and a communicating pipe, the rod body is arranged in a hollow mode, two sides of the rod body are fixedly connected with the connecting belt, the handle is arranged on the top surface of the rod body, the air inlet is arranged on one side of the handle, the air inlet is provided with a matched sealing door, and two sides of the rod body are connected with the filler through the communicating pipe, so that an air flow space is formed between the rod body and the filler.
3. The cylinder heat preservation mechanism of a steam turbine of a thermal power plant according to claim 1, wherein the filler is composed of a plurality of small units, wherein the small units are composed of an air bag and a rock wool layer, and two side surfaces of the air bag are covered with the rock wool layer.
4. A thermal insulation mechanism for a steam turbine of a thermal power plant according to claim 3, wherein both sides of the air bag are connected with the connecting belt through the reinforcing plate, and the outer surface of the air bag is coated with a high temperature resistant material.
5. The cylinder heat preservation mechanism of a steam turbine of a thermal power plant according to claim 1, wherein sealing gaskets are arranged on the connecting edges of the top cover and the heat preservation shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223142405.8U CN219176409U (en) | 2022-11-25 | 2022-11-25 | Cylinder body heat preservation mechanism of steam turbine of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223142405.8U CN219176409U (en) | 2022-11-25 | 2022-11-25 | Cylinder body heat preservation mechanism of steam turbine of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219176409U true CN219176409U (en) | 2023-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223142405.8U Active CN219176409U (en) | 2022-11-25 | 2022-11-25 | Cylinder body heat preservation mechanism of steam turbine of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219176409U (en) |
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2022
- 2022-11-25 CN CN202223142405.8U patent/CN219176409U/en active Active
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