Generator set sealing oil purification system and use method thereof
阅读说明:本技术 一种发电机组密封油净化系统及其使用方法 (Generator set sealing oil purification system and use method thereof ) 是由 翟松衡 饶斌 孙彬 张晓东 陈泽涛 常晓东 于 2020-07-14 设计创作,主要内容包括:本申请实施例提供了一种发电机组密封油净化系统及其使用方法,涉及机械领域,以解决发电机组检修持续时间较长的问题。所述密封油净化系统包括:移动式滤油机,用于将汽轮机主油箱中的油液输送至空侧密封油箱;第一过滤器,用于对空侧密封油箱中输送出的油液进行过滤,第一过滤器与氢侧密封油箱连接;汽端旁路输油管,用于将经第一过滤器输送至汽端密封瓦的油液输送至汽端空侧腔室,还用于将氢侧密封油箱输送至汽端密封瓦的油液输送至汽端空侧腔室;以及,励端旁路输油管,用于将经第一过滤器输送至励端密封瓦的油液输送至励端空侧腔室,还用于将氢侧密封油箱输送至励端密封瓦的油液输送至励端空侧腔室。本申请用于净化密封油。(The embodiment of the application provides a generating set sealing oil purification system and a using method thereof, relates to the field of machinery and aims to solve the problem that a generating set is long in maintenance duration. The seal oil purification system includes: the movable oil filter is used for conveying oil in the main oil tank of the steam turbine to the air side sealed oil tank; the first filter is used for filtering oil conveyed out of the air side sealed oil tank and is connected with the hydrogen side sealed oil tank; the steam end bypass oil pipeline is used for conveying the oil liquid conveyed to the steam end sealing tile by the first filter to the steam end empty side cavity, and is also used for conveying the oil liquid conveyed to the steam end sealing tile by the hydrogen side sealing oil tank to the steam end empty side cavity; and the excitation end bypass oil delivery pipe is used for delivering oil delivered to the excitation end sealing tile through the first filter to the excitation end hollow side cavity, and is also used for delivering oil delivered to the excitation end sealing tile from the hydrogen side sealing oil tank to the excitation end hollow side cavity. The application is used for purifying sealing oil.)
1. A generating set seals oil clean system which characterized in that includes:
the movable oil filter is used for conveying oil in the main oil tank of the steam turbine to the air side sealed oil tank;
the first filter is used for filtering oil conveyed out of the air side sealed oil tank and is connected with the hydrogen side sealed oil tank;
the steam end bypass oil pipeline is used for conveying the oil liquid conveyed to the steam end sealing tile by the first filter to a steam end empty side cavity, and is also used for conveying the oil liquid conveyed to the steam end sealing tile by the hydrogen side sealing oil tank to the steam end empty side cavity; and the number of the first and second groups,
the excitation end bypass oil delivery pipe is used for conveying oil conveyed to the excitation end sealing tile through the first filter to the excitation end hollow side cavity, and is also used for conveying the oil conveyed to the excitation end sealing tile from the hydrogen side sealing oil tank to the excitation end hollow side cavity.
2. The seal oil purification system according to claim 1,
the main oil tank of the steam turbine, the air side sealing oil tank, the hydrogen side sealing oil tank, the steam end air side cavity, the excitation end air side cavity, the steam end sealing tile and the excitation end sealing tile belong to the generator set;
the generator set further comprises a rotor, and two ends of the rotor are respectively supported on the steam end sealing tile and the excitation end sealing tile.
3. The seal oil purification system of claim 2, wherein the generator set further comprises:
an oil inlet of the air side sealing oil pump is connected with the air side sealing oil tank, an oil outlet of the air side sealing oil pump is connected with a first oil supply port and a second oil supply port of the steam end sealing tile, an oil outlet of the air side sealing oil pump is further connected with a fourth oil supply port and a fifth oil supply port of the excitation end sealing tile, and an oil outlet of the air side sealing oil pump is further connected with the hydrogen side sealing oil tank; and the number of the first and second groups,
the oil inlet of the hydrogen side sealing oil pump is connected with the hydrogen side sealing oil tank, the oil outlet of the hydrogen side sealing oil pump is connected with the third oil supply port of the steam end sealing tile, and the oil outlet of the air side sealing oil pump is connected with the sixth oil supply port of the excitation end sealing tile.
4. The seal oil purification system according to claim 3,
the steam end bypass oil conveying pipe comprises a first bypass oil conveying pipe, a second bypass oil conveying pipe and a third bypass oil conveying pipe;
the first bypass oil pipeline is connected with the first oil supply port and conveys oil output by the first oil supply port to the steam end empty side cavity;
the second bypass oil conveying pipe is connected with the second oil supply port and conveys oil output by the second oil supply port to the steam end hollow side cavity;
and the third bypass oil delivery pipe is connected with the third oil supply port, and the third bypass oil delivery pipe delivers oil output by the third oil supply port to the steam end hollow side cavity.
5. The seal oil purification system according to claim 3,
the excitation end bypass oil conveying pipe comprises a fourth bypass oil conveying pipe, a fifth bypass oil conveying pipe and a sixth bypass oil conveying pipe;
the fourth bypass oil pipe is connected with the fourth oil supply port, and the fourth bypass oil pipe conveys oil output by the fourth oil supply port to the cavity on the empty side of the excitation end;
the fifth bypass oil conveying pipe is connected with the fifth oil supply port, and the fifth bypass oil conveying pipe conveys oil output by the fifth oil supply port to the hollow side cavity of the excitation end;
and the sixth bypass oil conveying pipe is connected with the sixth oil supply port, and the sixth bypass oil conveying pipe conveys oil output by the sixth oil supply port to the hollow side cavity of the excitation end.
6. The seal oil purification system according to claim 3,
a first oil inlet corresponding to the first oil supply port on the steam end sealing tile is provided with a first plug;
a second oil inlet corresponding to the second oil supply port on the steam end sealing tile is provided with a second plug;
a third oil inlet corresponding to the third oil supply port on the steam end sealing tile is provided with a third plug;
a fourth oil inlet corresponding to the fourth oil supply port on the excitation end sealing tile is provided with a fourth plug;
a fifth oil inlet corresponding to the fifth oil supply port on the excitation end sealing tile is provided with a fifth plug;
and a sixth oil inlet corresponding to the sixth oil supply port on the excitation end sealing tile is provided with a sixth plug.
7. The seal oil purification system according to claim 3,
the oil inlet of the first filter is connected with the air side sealing oil tank, and the oil outlet of the first filter is connected with the air side sealing oil pump.
8. The seal oil purification system of claim 1, wherein the first filter is a Y-filter.
9. The seal oil purification system according to claim 1,
the oil-gas separation device is characterized in that a first oil drain valve is arranged at the bottom of a main oil tank of the steam turbine, a second oil drain valve is arranged at the bottom of a sealed oil tank at the air side, an oil inlet of the movable oil filter is connected with the first oil drain valve, and an oil outlet of the movable oil filter is connected with the second oil drain valve.
10. A method for using a sealing oil purification system for a generator set, which is applied to the sealing oil purification system of any one of claims 1 to 9, and is characterized by comprising the following steps:
overhauling the main oil tank of the steam turbine;
the steam end sealing tile and the excitation end sealing tile are overhauled;
and starting the movable oil filter, conveying oil in the main oil tank of the steam turbine to the air side sealed oil tank, and circulating the oil in the sealed oil circulating system by using the sealed oil circulating system of the generator set.
Technical Field
The application relates to the field of machinery, in particular to a generator set sealing oil purification system and a using method thereof.
Background
The field of generator technology, hydrogen-cooled generators are most commonly used. Hydrogen-cooled generators use hydrogen gas to cool the generator. The hydrogen cooled generator prevents hydrogen from escaping from the generator through a sealed oil system. The sealing oil system is divided into two oil paths of an empty side and a hydrogen side, the two oil paths respectively supply the sealing oil to two annular oil distribution grooves on a sealing bush for supporting the rotating shaft, and the sealing oil axially penetrates through a gap between the sealing bush and the rotating shaft along the rotating shaft and flows out. Hydrogen is generally prevented from escaping from the generator as long as the seal oil pressure remains above the gas pressure within the generator.
When the unit is overhauled, all the devices of the turbonator body are installed, and the three processes of filtering and purifying main engine lubricating oil, filtering and purifying generator sealing oil and testing the air tightness of the generator are needed to be carried out between the processes that the unit allows ignition and starting. Generally, after the turbonator body equipment is completely installed, the oil circulation of a main engine lubricating oil system can be started for filtering and purifying. The host lubricating oil system equipment is debugged and passed, and the granularity of lubricating oil reaches the qualified standard after, just can start the sealed oil system and purify sealed oil. And finally, the boiler ignition starting unit can not be carried out until the airtight test of the sealed oil system is qualified.
Disclosure of Invention
The embodiment of the application provides a generating set sealing oil purification system and a using method thereof, and aims to solve the problem that the generating set maintenance duration is long.
In a first aspect, the embodiment of the application provides a generator set sealing oil purification system.
The generator set sealing oil clean system that this application embodiment provided can include: the movable oil filter is used for conveying oil in the main oil tank of the steam turbine to the air side sealed oil tank; the first filter is used for filtering oil conveyed out of the air side sealed oil tank and is connected with the hydrogen side sealed oil tank; the steam end bypass oil pipeline is used for conveying the oil liquid conveyed to the steam end sealing tile by the first filter to a steam end empty side cavity, and is also used for conveying the oil liquid conveyed to the steam end sealing tile by the hydrogen side sealing oil tank to the steam end empty side cavity; and the excitation end bypass oil delivery pipe is used for conveying oil conveyed to the excitation end sealing tile by the first filter to the excitation end hollow side cavity, and is also used for conveying the oil conveyed to the excitation end sealing tile by the hydrogen side sealing oil tank to the excitation end hollow side cavity.
Optionally, the main oil tank of the steam turbine, the air-side sealed oil tank, the hydrogen-side sealed oil tank, the steam-end air-side chamber, the excitation-end air-side chamber, the steam-end sealed tile and the excitation-end sealed tile belong to the generator set; the generator set further comprises a rotor, and two ends of the rotor are respectively supported on the steam end sealing tile and the excitation end sealing tile.
Optionally, the generator set further comprises: an oil inlet of the air side sealing oil pump is connected with the air side sealing oil tank, an oil outlet of the air side sealing oil pump is connected with a first oil supply port and a second oil supply port of the steam end sealing tile, an oil outlet of the air side sealing oil pump is further connected with a fourth oil supply port and a fifth oil supply port of the excitation end sealing tile, and an oil outlet of the air side sealing oil pump is further connected with the hydrogen side sealing oil tank; and the oil inlet of the hydrogen side sealing oil pump is connected with the hydrogen side sealing oil tank, the oil outlet of the hydrogen side sealing oil pump is connected with the third oil supply port of the steam end sealing tile, and the oil outlet of the air side sealing oil pump is also connected with the sixth oil supply port of the excitation end sealing tile.
Optionally, the steam-end bypass oil delivery pipe comprises a first bypass oil delivery pipe, a second bypass oil delivery pipe and a third bypass oil delivery pipe; the first bypass oil pipeline is connected with the first oil supply port and conveys oil output by the first oil supply port to the steam end empty side cavity; the second bypass oil conveying pipe is connected with the second oil supply port and conveys oil output by the second oil supply port to the steam end hollow side cavity; and the third bypass oil delivery pipe is connected with the third oil supply port, and the third bypass oil delivery pipe delivers oil output by the third oil supply port to the steam end hollow side cavity.
Optionally, the excitation end bypass oil conveying pipes include a fourth bypass oil conveying pipe, a fifth bypass oil conveying pipe and a sixth bypass oil conveying pipe; the fourth bypass oil pipe is connected with the fourth oil supply port, and the fourth bypass oil pipe conveys oil output by the fourth oil supply port to the cavity on the empty side of the excitation end; the fifth bypass oil conveying pipe is connected with the fifth oil supply port, and the fifth bypass oil conveying pipe conveys oil output by the fifth oil supply port to the hollow side cavity of the excitation end; and the sixth bypass oil conveying pipe is connected with the sixth oil supply port, and the sixth bypass oil conveying pipe conveys oil output by the sixth oil supply port to the hollow side cavity of the excitation end.
Optionally, a first oil inlet corresponding to the first oil supply port on the steam end sealing tile is provided with a first plug; a second oil inlet corresponding to the second oil supply port on the steam end sealing tile is provided with a second plug; a third oil inlet corresponding to the third oil supply port on the steam end sealing tile is provided with a third plug; a fourth oil inlet corresponding to the fourth oil supply port on the excitation end sealing tile is provided with a fourth plug; a fifth oil inlet corresponding to the fifth oil supply port on the excitation end sealing tile is provided with a fifth plug; and a sixth oil inlet corresponding to the sixth oil supply port on the excitation end sealing tile is provided with a sixth plug.
Optionally, an oil inlet of the first filter is connected to the air-side sealed oil tank, and an oil outlet of the first filter is connected to the air-side sealed oil pump.
Optionally, the first filter is a Y-filter.
Optionally, a first oil drain valve is arranged at the bottom of the main oil tank of the steam turbine, a second oil drain valve is arranged at the bottom of the air-side sealed oil tank, an oil inlet of the movable oil filter is connected with the first oil drain valve, and an oil outlet of the movable oil filter is connected with the second oil drain valve.
In a second aspect, the application provides a use method of a sealing oil purification system of a generator set. The application method of generating set sealing oil clean system that this application embodiment provided can be applied to any kind of generating set sealing oil clean system that the first aspect provided, includes: overhauling the main oil tank of the steam turbine; the steam end sealing tile and the excitation end sealing tile are overhauled; and starting the movable oil filter, conveying oil in the main oil tank of the steam turbine to the air side sealed oil tank, and circulating the oil in the sealed oil circulating system by using the sealed oil circulating system of the generator set.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
in the embodiment of this application, can add portable oil filter in generating set, first filter, defeated oil pipe of steam end bypass, encourage end bypass and transport oil pipe, can utilize portable oil filter to carry the fluid in the turbine main oil tank to the sealed oil tank of dead side, can utilize the sealed oil circulation system of generating set self-bring to circulate the fluid in the sealed oil circulation system, and utilize first filter to filter the fluid of carrying out in the sealed oil tank of dead side, can make circulating oil not pass through the sealed tile of steam end that has overhauld and sanitized and encourage end sealed tile through defeated oil pipe of steam end bypass and encourage end bypass, in order to prevent that the fluid that contains impurity from causing secondary pollution to the sealed tile of steam end and encourage end sealed tile. Therefore, by utilizing the mode of carrying out oil conveying by the movable oil filter, the movable oil filter and the sealing oil circulating system of the generator set can be opened to filter and purify oil after the generator set is not completely overhauled, and the sealing oil system can be purified after the overhaul of the main oil tank of the steam turbine, the steam end sealing bush and the excitation end sealing bush is completed, so that the purification of the sealing oil system can be carried out in parallel with other overhaul work of the generator set, and the duration of the overhaul of the generator set can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic view of a sealing oil circulation system in a first generator set provided in an embodiment of the present application.
Fig. 2 is a schematic view of a sealing oil circulation system in a second generator set provided in an embodiment of the present application.
Fig. 3 is a schematic diagram of a sealed oil receiving port in a second generator set provided in an embodiment of the present application.
FIG. 4 is a schematic diagram of a sealing oil purification system for a generator set according to an embodiment of the present disclosure;
fig. 5 is a schematic view of a connection mode of a sealing oil port of a sealing oil purification system of a generator set provided in an embodiment of the present application.
Fig. 6 is a flowchart of a method for using a sealing oil purification system of a generator set according to an embodiment of the present application.
Description of reference numerals: 110-a rotor; 1101-rotor steam end; 1102-rotor excitation end; 1103-vapor end sealing tile; 1104-tip seal shoe; 1105-vapor end air side chamber; 1106-exciter end air side chamber; 1107-vapor side hydrogen chamber; 1108-the exciter hydrogen side chamber; 120-a main oil tank of the steam turbine; 1201-a lubricating oil pump; 1301-sleeving an oil pipe on the steam turbine; 1302-U type oil pipeline; 1401-empty side sealed tank; 1402-hydrogen side sealed oil tank; 1501-air side seal oil pump; 15011-sealing the output pipe of the oil pump at the empty side; 1502-hydrogen side seal oil pump; 15021-sealing the output pipe of the oil pump on the hydrogen side; 1601-a first fuel drain valve; 1602-a second bleed valve; 1603 — first shut-off valve; 1604-differential pressure valve; 1605-a second filter; 1606-a second stop valve; 1607-a third filter; 1608-a first counter balance valve; 1609-a second counter balance valve; 200-sealing an oil purification system; 2701-mobile oil filter; 2702-first filter; 2801-a first oil supply port; 28015-first oil inlet; 2802-a second oil supply port; 28025-a second oil inlet; 2803-a third oil supply port; 28035-third oil inlet; 2804-a fourth oil supply port; 28045-fourth oil inlet; 2805-a fifth oil supply port; 28055-fifth oil inlet; 2806-a sixth oil supply port; 28065-sixth oil inlet; 290 a-a steam end bypass oil delivery pipe; 2901-first bypass oil pipe; 2902-a second bypass oil delivery pipe; 2903-a third bypass flow line; 290 b-excitation end bypass oil pipe; 2904-fourth bypass oil pipe; 2905-fifth bypass oil delivery pipe; 2906 sixth bypass oil line.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, in the related art, a generator set may include a
Both ends of the
The turbine
A lubricating
The empty
Referring to fig. 2 and 3, the generator set may further include: an air side
When the generator set normally operates, the first
Referring to fig. 2, the power plant may further include a first
The genset may also include a first shut-off
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
The sealing oil purification system provided by the embodiment of the application can be implemented on the basis of any one of the generator sets described in the foregoing. Referring to fig. 4, a seal
In this way, in the embodiment of the present application, a
Optionally, in embodiments of the present application, the port
Alternatively, in other embodiments of the present application, the vapor side bypass oil delivery pipe may be a first collector (not shown), and the first
Optionally, in embodiments of the present application, the excitation
Alternatively, in other embodiments of the present application, the tip bypass oil delivery pipe may also be a second collector (not shown), such that the fourth
Optionally, in an embodiment of the present application, a
Alternatively, in an embodiment of the present application, the oil inlet of the
Alternatively, in the embodiment of the present application, the bottom of the
In this way, in the embodiment of the application, the
It should be noted that, in the embodiment of the present application, after the oil is purified, the
The embodiment of the application provides a using method of a sealing oil purification system of a generator set, which can be applied to any one of the sealing oil purification systems described in the foregoing. Referring to fig. 6, a method for using a genset seal oil purification system provided in an embodiment of the present application may include:
It should be noted that, in the embodiment of the present application, the order of
In this way, in the embodiment of the present application, the seal oil system may be purified after completing the overhaul of the
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the embodiments of the application, the scope of which is defined in the appended claims and their equivalents.
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