CN212359873U - Lubricating oil pump system and turbine lubricating oil system - Google Patents
Lubricating oil pump system and turbine lubricating oil system Download PDFInfo
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- CN212359873U CN212359873U CN202021273412.XU CN202021273412U CN212359873U CN 212359873 U CN212359873 U CN 212359873U CN 202021273412 U CN202021273412 U CN 202021273412U CN 212359873 U CN212359873 U CN 212359873U
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Abstract
The utility model discloses a lubricating oil pump system and steam turbine lubricating oil system, this lubricating oil pump system includes: the lubricating oil pump comprises an alternating-current lubricating oil pump, a first direct-current lubricating oil pump and a second direct-current lubricating oil pump, wherein the alternating-current lubricating oil pump is connected with a power supply of the alternating-current lubricating oil pump of the unit; the first direct-current lubricating oil pump is connected with a power supply of the unit direct-current lubricating oil pump; and the second direct-current lubricating oil pump is connected with a power supply of another unit direct-current lubricating oil pump, wherein the power supply of the other unit direct-current lubricating oil pump is a power supply of a unit direct-current lubricating oil pump of a lubricating oil pump system outside the lubricating oil pump system. The direct-current lubricating oil pump is additionally arranged, and the power supply of the direct-current lubricating oil pump is taken from different unit direct-current power supplies, so that the establishment time and the reliability of the oil pressure after the direct-current lubricating oil pump is started are improved, the safe operation requirement of the steam turbine unit in the high-speed operation process is met, and the overall reliability of a lubricating oil system of the steam turbine unit is improved.
Description
Technical Field
The utility model relates to a power generation facility field especially relates to a lubricating-oil pump system and steam turbine lubricating oil system.
Background
The task of the lubricating oil system is to reliably provide qualified lubricating/cooling oil to the support bearings, thrust bearings and barring gear of the turbo generator set, as well as to provide sealing oil for the generator hydrogen sealing system and pressure oil for the mechanical overspeed trip device.
The common modes of the existing turbine lubricating oil system generally comprise two modes, namely a main oil pump driving oil supply mode and an electric lubricating oil pump oil supply mode. The main oil pump oil supply mode comprises a main oil pump directly driven by a steam turbine main shaft, the electric lubricating oil pump oil supply mode does not comprise the main oil pump driven by the steam turbine main shaft, the lubricating oil system is provided by an alternating-current lubricating oil pump and a direct-current lubricating oil pump, when the electric lubricating oil pump oil supply mode is adopted, the steam turbine lubricating oil system is easy to cause the loss of an alternating-current power supply or the loss of a direct-current power supply or the electrical accidents such as short-time faults of the power supply and the like, the reliability is low, and the risk of oil pressure reduction exists.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a lubricating oil pump system and steam turbine lubricating oil system to solve the lower problem of electrical apparatus accident, reliability appear easily when current steam turbine lubricating oil system adopts electronic lubricating oil pump fuel feeding mode.
In order to solve the technical problem, the utility model discloses a realize like this:
in a first aspect, a lubrication pump system is provided, comprising: an AC lubricating oil pump, a first DC lubricating oil pump and a second DC lubricating oil pump,
the alternating-current lubricating oil pump is connected with a power supply of the unit alternating-current lubricating oil pump; the first direct-current lubricating oil pump is connected with a power supply of the unit direct-current lubricating oil pump; and the second direct-current lubricating oil pump is connected with a power supply of another unit direct-current lubricating oil pump, wherein the power supply of the other unit direct-current lubricating oil pump is a power supply of a unit direct-current lubricating oil pump of a lubricating oil pump system outside the lubricating oil pump system.
Further, the ac lubricating oil pump is interlocked with the first dc lubricating oil pump.
Further, the first direct-flow lubrication oil pump is interlocked with the second direct-flow lubrication oil pump.
Further, the alternating-current lubricating oil pump is a three-phase alternating-current motor-driven lubricating oil pump.
Further, the power supply of the unit alternating-current lubricating oil pump is a 380V power supply.
Further, the power supply of the unit direct-current lubricating oil pump is a 220V direct-current bus power supply.
Further, the alternating-current lubricating oil pump is multiple.
Further, the number of the alternating-current lubricating oil pumps is 2, and each alternating-current lubricating oil pump and each spare alternating-current lubricating oil pump are arranged.
Further, the power supplies of the alternating-current lubricating oil pump and the standby alternating-current lubricating oil pump are different 380V security sections.
In a second aspect, there is provided a turbine lubrication oil system comprising the lubrication oil pump system of the first aspect.
The embodiment of the utility model provides an in, increase the second direct current lubrication oil pump that provides direct current lubrication oil pump power by other systems all the way in this system. The direct-current lubricating oil pump is additionally arranged, and the power supply of the direct-current lubricating oil pump is taken from different unit direct-current power supplies, so that the establishment time of the oil pressure after the direct-current lubricating oil pump is started is prolonged, the safe operation requirement of a steam turbine unit in a high-speed operation process (such as 3000 revolutions per minute) is met, and the overall reliability of a lubricating oil system of the steam turbine unit is improved.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic structural diagram of a lubricating oil pump system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model provides a lubricating oil pump system and turbine lubricating oil system, this system are to the turbine lubricating oil system of electronic lubricating oil pump fuel feeding mode, and when the electric accident operating mode appeared, alternating current power supply lost, perhaps DC power supply lost, perhaps the power appears the short-term trouble, can provide the power by the 220V power direct current generating line of adjacent other units, improve lubricating oil system's reliability.
Fig. 1 is a schematic structural diagram of a lubricating oil pump system according to an embodiment of the present invention. As shown, a schematic diagram of power supply from 220V power dc bus of other adjacent units is provided, others are not shown.
As shown, the lubrication oil pump system may include: the lubricating oil pump comprises an alternating-current lubricating oil pump, a first direct-current lubricating oil pump and a second direct-current lubricating oil pump.
Wherein, it can be one to exchange the lubricating oil pump, also can be many, confirms according to actual need, the utility model discloses in do not specifically limit.
Specifically, the alternating-current lubricating oil pump is connected with a power supply of the unit alternating-current lubricating oil pump; the first direct-current lubricating oil pump is connected with a power supply of the unit direct-current lubricating oil pump; the second direct-current lubricating oil pump is connected with a power supply of a direct-current lubricating oil pump of another unit, wherein the power supply of the direct-current lubricating oil pump of the other unit is a power supply of a direct-current lubricating oil pump of the lubricating oil pump system outside the lubricating oil pump system.
The embodiment of the utility model provides an in, increase the second direct current lubrication oil pump that provides direct current lubrication oil pump power by other systems all the way. The direct-current lubricating oil pump is additionally arranged, and the power supply of the direct-current lubricating oil pump is taken from different unit direct-current power supplies, so that the establishment time of the oil pressure after the direct-current lubricating oil pump is started is prolonged, the safe operation requirement of a steam turbine unit in a high-speed operation process (such as 3000 revolutions per minute) is met, and the overall reliability of a lubricating oil system of the steam turbine unit is improved.
In one possible embodiment of the present invention, the ac lubricating oil pump is interlocked with the first dc lubricating oil pump. The first direct-current lubricating oil pump can automatically input to ensure mechanical lubrication when the alternating-current lubricating oil pump fails, and the function of protecting system equipment is achieved.
In a possible embodiment of the present invention, the first direct current lubrication pump is interlocked with the second direct current lubrication pump. When an alternating-current lubricating oil pump, a direct-current lubricating oil pump or a direct-current power supply of the system breaks down, the second direct-current lubricating oil pump is automatically switched on to ensure mechanical lubrication, and the system is protected. And the second direct current lubricating oil pump adopts a direct current power supply which is not the system to supply power, thereby further playing a role in protecting the system.
In one possible embodiment of the present invention, the ac lubrication pump is a three-phase ac motor driven lubrication pump.
Further, the power supply of the unit alternating-current lubricating oil pump is a 380V power supply.
In one possible embodiment of the present invention, the unit dc lubricating oil pump power supply is a 220V dc bus power supply.
In one possible embodiment of the present invention, the ac lubricating oil pump is plural.
Specifically, the number of the ac lubricating oil pumps is 2, one ac lubricating oil pump and one spare ac lubricating oil pump. When the alternating-current lubricating oil pump fails, the standby alternating-current lubricating oil pump can be adopted to work, namely when one alternating-current oil pump fails or the oil pressure of the system is reduced, the other standby alternating-current oil pump is started in an interlocking mode, and the function of protecting the system is achieved.
Further, the power supplies of the alternating-current lubricating oil pump and the standby alternating-current lubricating oil pump are different in 380V security section.
For example: the power supplies of the alternating-current lubricating oil pump and the standby alternating-current lubricating oil pump can be respectively 380V security A section and B section.
The utility model provides a turbine lubricating oil system, this system include above-mentioned arbitrary lubricating oil pump system.
The utility model provides a turbine lubricating oil system is except including above-mentioned lubricating oil pump system, still includes some other equipment, for example container oil tank, oil cooler, diverter valve, fume extractor, apical axis device, low lubricating oil pressure breaker, oil pipe way, oil level indicator and connecting tube, equipment such as watch-dog.
The connection relationship and the functions of the above devices are not listed in the present application.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, 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, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, article, or apparatus that comprises the element.
The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.
Claims (10)
1. A lubrication pump system, comprising: an AC lubricating oil pump, a first DC lubricating oil pump and a second DC lubricating oil pump,
the alternating-current lubricating oil pump is connected with a power supply of the unit alternating-current lubricating oil pump; the first direct-current lubricating oil pump is connected with a power supply of the unit direct-current lubricating oil pump; and the second direct-current lubricating oil pump is connected with a power supply of another unit direct-current lubricating oil pump, wherein the power supply of the other unit direct-current lubricating oil pump is a power supply of a unit direct-current lubricating oil pump of a lubricating oil pump system outside the lubricating oil pump system.
2. The system of claim 1, wherein the ac lube pump is interlocked with the first dc lube pump.
3. The system of claim 2, wherein the first direct flow lubrication oil pump is interlocked with the second direct flow lubrication oil pump.
4. The system of claim 1, wherein the ac lube pump is a three-phase ac motor driven lube pump.
5. The system of claim 3, wherein the block ac lube pump power supply is a 380V power supply.
6. The system of claim 1, wherein the unit dc lube pump power supply is a 220V dc bus power supply.
7. The system of claim 1, wherein the ac lube pump is plural.
8. The system of claim 1, wherein the number of ac lubrication pumps is 2, one ac lubrication pump and one backup ac lubrication pump.
9. The system of claim 8, wherein the ac lube pump and the backup ac lube pump are powered by different 380V safety segments.
10. A turbine lubrication oil system, comprising: a lubricating oil pump system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273412.XU CN212359873U (en) | 2020-07-02 | 2020-07-02 | Lubricating oil pump system and turbine lubricating oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021273412.XU CN212359873U (en) | 2020-07-02 | 2020-07-02 | Lubricating oil pump system and turbine lubricating oil system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212359873U true CN212359873U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021273412.XU Active CN212359873U (en) | 2020-07-02 | 2020-07-02 | Lubricating oil pump system and turbine lubricating oil system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212359873U (en) |
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2020
- 2020-07-02 CN CN202021273412.XU patent/CN212359873U/en active Active
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