CN218206803U - Front gland sealing leakage-proof device of steam turbine - Google Patents
Front gland sealing leakage-proof device of steam turbine Download PDFInfo
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- CN218206803U CN218206803U CN202221987579.1U CN202221987579U CN218206803U CN 218206803 U CN218206803 U CN 218206803U CN 202221987579 U CN202221987579 U CN 202221987579U CN 218206803 U CN218206803 U CN 218206803U
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- front box
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Abstract
The utility model discloses a gland sealing leak protection device before steam turbine, including steam turbine body and steam turbine front box, fixedly connected with cylinder body between steam turbine body and the steam turbine front box, be connected with the rotor between steam turbine body and the steam turbine front box, the rotor runs through the inside of cylinder body, be equipped with the gland casing between cylinder body and the rotor, gland casing fixed connection is on the inside lateral wall of cylinder body, the rotor runs through the inside of gland casing, fixedly connected with humidity transducer on the inside lateral wall of cylinder body. The utility model relates to a rationally, think about ingeniously, but in time discover steam leakage and carry out suction and handle, greatly reduced steam leakage is to the influence of steam turbine front box.
Description
Technical Field
The utility model relates to a steam turbine technical field especially relates to a gland sealing leak protection device before steam turbine.
Background
The steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, and simultaneously, the rotor does work outwards. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.
The front steam seal is used for preventing steam from leaking from inside to outside along the shaft end of the high-pressure cylinder and even entering a front bearing box to enable water to enter lubricating oil; the back steam seal is used for preventing air from leaking into the low pressure cylinder from outside to inside to destroy the vacuum of the unit, and a self-sealing steam seal is adopted.
The long-term steam leakage of a steam seal in front of a steam turbine seriously influences the safe operation of a steam turbine generator unit, generally, moisture in an oil system is filtered by a vacuum oil filter of the oil system, the moisture filtered by the oil filter reaches 2 kilograms every day, and more oil sludge and oil dirt are found to be adhered to equipment of the oil system in the process of overhauling the steam turbine oil system, so that serious potential safety hazards are brought to a steam turbine adjusting security system and a lubricating oil system.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gland sealing leak protection device before steam turbine to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a gland sealing leak protection device before steam turbine, includes steam turbine body and steam turbine front box, fixedly connected with cylinder body between steam turbine body and the steam turbine front box, be connected with the rotor between steam turbine body and the steam turbine front box, the rotor runs through the inside of cylinder body, be equipped with the gland body between cylinder body and the rotor, gland body fixed connection is on the inside lateral wall of cylinder body, the rotor runs through the inside of gland body, fixedly connected with humidity transducer on the inside lateral wall of cylinder body, humidity transducer is located one side that the cylinder body is close to the steam turbine front box, fixedly connected with central controller and attention device on the lateral wall of cylinder body, humidity transducer and attention device all are connected with the central controller electricity, be equipped with suction device on the lateral wall of cylinder body.
As a further improvement scheme of the technical scheme: the suction device comprises an air pump, the air pump is fixedly connected to the side wall of the cylinder body, a connecting pipe is fixedly connected to the air suction end of the air pump, one end of the connecting pipe is fixedly connected to the side wall of the cylinder body, one end of the connecting pipe is communicated with the inside of one side, close to the front box of the steam turbine, of the cylinder body, and the air pump is electrically connected with the central controller.
As a further improvement scheme of the technical scheme: the gland sealing body is made of stainless steel.
As a further improvement scheme of the technical scheme: the central controller adopts an MSP430 singlechip or a PLC controller with the model number of OMRON CP1E-N20 DR-D.
As a further improvement scheme of the technical scheme: the alarm is an alarm lamp.
As a further improvement scheme of the technical scheme: and an anti-oxidation coating is arranged on the surface of the cylinder body.
Compared with the prior art, the beneficial effects of the utility model are that:
humidity transducer can detect the air humidity who is close to one side of steam turbine front box, and send the air humidity parameter to central controller in, be equipped with predetermined humidity threshold value in the central controller, when exceeding the humidity threshold value with the air humidity parameter, can judge that the gland casing produces the leakage, the steerable attention device of central controller carries out the police dispatch newspaper this moment, the suggestion staff carries out in time the maintenance, simultaneously steerable aspiration pump carries out work, take out the inside vapor that is close to steam turbine front box one side with the cylinder body through the connecting pipe, the device reasonable in design, it is ingenious, can in time discover steam leakage and think about and carry out the suction and handle, greatly reduced steam leakage is to the influence of steam turbine front box.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic front structural view of a front gland sealing leakage-proof device of a steam turbine according to the present invention;
fig. 2 is a schematic view of the internal cross-sectional structure of the cylinder body in the front gland sealing leakage-proof device of the steam turbine provided by the utility model;
fig. 3 is the schematic cross-sectional structural view of the gland casing in the steam turbine front gland leak-proof device provided by the utility model.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a humidity sensor; 2. a central controller; 3. an alarm; 4. a gland sealing body; 5. a rotor; 6. a connecting pipe; 7. an air pump; 8. a cylinder body; 9. a steam turbine body; 10. and a front box of the steam turbine.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for purposes of illustration only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1-3, in an embodiment of the present invention, a steam turbine front gland sealing leakage-proof device, includes a steam turbine body 9 and a steam turbine front box 10, a cylinder 8 is fixedly connected between the steam turbine body 9 and the steam turbine front box 10, an anti-oxidation coating is provided on the surface of the cylinder 8, a rotor 5 is connected between the steam turbine body 9 and the steam turbine front box 10, the rotor 5 penetrates through the inside of the cylinder 8, a gland 4 is provided between the cylinder 8 and the rotor 5, the gland 4 is made of stainless steel, the gland 4 is fixedly connected to the inner side wall of the cylinder 8, the rotor 5 penetrates through the inside of the gland 4, a humidity sensor 1 is fixedly connected to the inner side wall of the cylinder 8, the humidity sensor 1 is located at one side of the cylinder 8 close to the steam turbine front box 10, a central controller 2 and an alarm 3 are fixedly connected to the outer side wall of the cylinder 8, the humidity sensor 1 and the alarm 3 are both electrically connected to the central controller 2, the alarm 3 is an alarm lamp, a suction device is provided on the side wall of the cylinder 8, wherein the central controller 2 adopts 430 or a single chip microcomputer as an OMRON (programmable logic controller) or a PLC (programmable logic controller) with an OMRON read-programmable logic controller (programmable logic controller) (OMRON read-digital controller) (OMRON) 20-N-20).
Specifically, suction device includes aspiration pump 7, aspiration pump 7 fixed connection is on the lateral wall of cylinder body 8, the intake end fixedly connected with connecting pipe 6 of aspiration pump 7, the one end fixed connection of connecting pipe 6 is on the lateral wall of cylinder body 8, the one end of connecting pipe 6 is close to the inside being linked together in one side of steam turbine front box 10 with cylinder body 8, aspiration pump 7 is connected with central controller 2 electricity, when gland sealing body 4 produces the leakage, central controller 2 steerable aspiration pump 7 of this moment works, take out the inside vapor that cylinder body 8 is close to steam turbine front box 10 one side through connecting pipe 6.
The utility model discloses a theory of operation is:
after the steam turbine body 9 operates, the steam seal body 4 can block the circulation of water vapor between the steam turbine body 9 and the steam turbine front box 10, when the steam seal body 4 and the rotor 5 leak, steam flows from one side of the cylinder body 8 close to the steam turbine body 9 to one side close to the steam turbine front box 10, the air humidity close to one side of the steam turbine front box 10 can be detected by the humidity sensor 1 at the moment, and the air humidity parameter is sent to the central controller 2, a preset humidity threshold value is arranged in the central controller 2, when the air humidity parameter exceeds the humidity threshold value, the steam seal body 4 can be judged to leak, the controllable alarm 3 of the central controller 2 gives an alarm at the moment, prompt a worker to maintain timely, meanwhile, the controllable air suction pump 7 works, and the water vapor inside the cylinder body 8 close to one side of the steam turbine front box 10 is pumped out through the connecting pipe 6.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of equivalent changes made to the above embodiments according to the essential technology of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a gland sealing leak protection device before steam turbine, includes steam turbine body (9) and steam turbine front box (10), its characterized in that, fixedly connected with cylinder body (8) between steam turbine body (9) and steam turbine front box (10), be connected with rotor (5) between steam turbine body (9) and steam turbine front box (10), the inside of cylinder body (8) is run through in rotor (5), be equipped with gland sealing body (4) between cylinder body (8) and rotor (5), gland sealing body (4) fixed connection is on the inside lateral wall of cylinder body (8), the inside of gland sealing body (4) is run through in rotor (5), fixedly connected with humidity transducer (1) on the inside lateral wall of cylinder body (8), humidity transducer (1) are located one side that cylinder body (8) are close to steam turbine front box (10), fixedly connected with central controller (2) and attention device (3) on the lateral wall of cylinder body (8), humidity transducer (1) and attention device (3) all are connected with central controller cylinder body (2) electricity, be equipped with the lateral wall of suction device (8).
2. The front gland sealing leakage-proof device of the steam turbine according to claim 1, characterized in that the suction device comprises a suction pump (7), the suction pump (7) is fixedly connected to the side wall of the cylinder block (8), a connecting pipe (6) is fixedly connected to the suction end of the suction pump (7), one end of the connecting pipe (6) is fixedly connected to the side wall of the cylinder block (8), one end of the connecting pipe (6) is communicated with the inside of the side, close to the turbine front box (10), of the cylinder block (8), and the suction pump (7) is electrically connected with the central controller (2).
3. The front gland sealing leakage-proof device of the steam turbine according to claim 1, characterized in that the gland casing (4) is made of stainless steel.
4. The steam turbine front gland seal leakage preventer according to claim 1, characterized in that the central controller (2) is an MSP430 single chip microcomputer or a PLC controller of the type OMRON CP1E-N20 DR-D.
5. The turbine front gland sealing leakage prevention device according to claim 1, characterized in that the alarm (3) is an alarm lamp.
6. The front gland sealing leakage-proof device of the steam turbine as claimed in claim 1, characterized in that the surface of the cylinder block (8) is provided with an anti-oxidation coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221987579.1U CN218206803U (en) | 2022-07-29 | 2022-07-29 | Front gland sealing leakage-proof device of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221987579.1U CN218206803U (en) | 2022-07-29 | 2022-07-29 | Front gland sealing leakage-proof device of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218206803U true CN218206803U (en) | 2023-01-03 |
Family
ID=84652518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221987579.1U Active CN218206803U (en) | 2022-07-29 | 2022-07-29 | Front gland sealing leakage-proof device of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218206803U (en) |
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2022
- 2022-07-29 CN CN202221987579.1U patent/CN218206803U/en active Active
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