CN106246326B - Subsidiary engine cooling system and method - Google Patents
Subsidiary engine cooling system and method Download PDFInfo
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- CN106246326B CN106246326B CN201610645807.XA CN201610645807A CN106246326B CN 106246326 B CN106246326 B CN 106246326B CN 201610645807 A CN201610645807 A CN 201610645807A CN 106246326 B CN106246326 B CN 106246326B
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- oil
- pump
- subsidiary engine
- impeller
- cooling water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of subsidiary engine cooling system and methods, the subsidiary engine cooling system includes main oil pump, pressure oil pump, first oil impeller, fuel tank, second oil impeller, first cooling water pump and subsidiary engine cooler, the output axis connection of main oil pump and steam turbine, first oil impeller is connect with pressure oil pump, the oil inlet of the oil outlet of main oil pump and the first oil impeller passes through the first oil communication, the oil outlet of first oil impeller is connected to steam-turbine lubricating system, the oil inlet of pressure oil pump is connected to fuel tank, the oil outlet of pressure oil pump and the oil inlet of main oil pump pass through the second oil communication, second oil impeller is connect with the first cooling water pump, the oil inlet of second oil impeller and the first oil communication, the oil outlet of second oil impeller is connected to fuel tank, the water outlet of first cooling water pump is connected to the water inlet of subsidiary engine cooler by inlet pipeline.The subsidiary engine cooling system and method, operational reliability is high, and station service power consumption rate can be effectively reduced, energy saving.
Description
Technical field
The present invention relates to cooling system technical field, in particular to a kind of subsidiary engine cooling system and method.
Background technique
Subsidiary engine refers to the mill auxiliaries equipment for assisting host to operate normally.In thermal power plant, subsidiary engine is mainly wrapped
Include all kinds of blowers, pumping mechanism, coal pulverizer, cleaning device, lubricating system etc..These subsidiary engines can generate largely in the process of running
Heat, it is therefore desirable to it is cooled down using subsidiary engine cooling water, with take away subsidiary engine operation in due to current vortex loss, friction
The heat that the reasons such as loss generate controls the temperature of equipment in the reasonable scope, guarantees that equipment is run steadily in the long term.And station-service
Electric rate is one of the main performance assessment criteria in current thermal power plant, directly affects net coal consumption rate.For thermal power plant design
Speech, reducing station service power consumption rate is a vital task, therefore provides a kind of subsidiary engine cooling system that can reduce station service power consumption rate and side
Method is particularly necessary.
Summary of the invention
Based on this, the invention reside in overcoming the deficiencies of existing technologies, a kind of subsidiary engine cooling system and method are provided, it can be effective
Station service power consumption rate is reduced, it is energy saving.
Its technical solution is as follows：
A kind of subsidiary engine cooling system, including main oil pump, pressure oil pump, the first oil impeller, fuel tank, the second oil impeller, first
The output axis connection of cooling water pump and subsidiary engine cooler, the main oil pump and steam turbine, first oil impeller and pressure oil pump
The oil inlet of connection, the oil outlet of the main oil pump and the first oil impeller passes through the first oil communication, first oil impeller
Oil outlet is connected to steam-turbine lubricating system, and the oil inlet of the pressure oil pump is connected to fuel tank, the pressure oil pump it is fuel-displaced
The oil inlet of mouth and main oil pump passes through the second oil communication, and second oil impeller is connect with cooling water pump, the described second oily whirlpool
The oil outlet of the oil inlet of wheel and the first oil communication, second oil impeller is connected to fuel tank, the water outlet of the cooling water pump
Mouth is connected to the water inlet of subsidiary engine cooler by inlet pipeline.
The subsidiary engine cooling system further includes the second cooling water pump in one of the embodiments, second cooling water
Pump is arranged in parallel with the first cooling water pump.
The subsidiary engine cooling system further includes motor in one of the embodiments, the output shaft of the motor and second
Cooling water pump connection.
The water outlet of the water inlet of the cooling water pump and subsidiary engine cooler passes through return pipe in one of the embodiments,
Road connection.
The subsidiary engine cooler is at least two in one of the embodiments, the connection between the subsidiary engine cooler
Mode is serial or parallel connection.
The pressure oil pump is arranged in fuel tank in one of the embodiments,.
The pressure oil pump is vane type centrifugal pump in one of the embodiments,.
The present invention also provides a kind of subsidiary engine cooling means, include the following steps：
The output shaft of steam turbine drives main oil pump operation, makes the pressure rise of lubricating oil；
Lubricating oil after a part boosting drives the first oil impeller, the oily whirlpool of lubricating oil driving second after another part boosting
Wheel；
Lubricating oil is sent after the decompression of the first oil impeller to steam-turbine lubricating system, while the first oil impeller drives pressure oil pump
Sucking fuel tank in lubricating oil and be pumped to main oil pump；
Second oil impeller drives the operation of the first cooling water pump, and the first cooling water pump is that subsidiary engine cooler pump send cooling water.
Further, the subsidiary engine cooling means is further comprising the steps of：
The output shaft of motor drives the operation of the second cooling water pump, and the second cooling water pump is that subsidiary engine cooler pump send cooling water.
The advantages of below to preceding solution or principle are illustrated：
Above-mentioned subsidiary engine cooling system and method, lubricating oil are boosted by the main oil pump driven by steam turbine output shaft, and one
Lubricating oil after decilitre pressure drives the first oil impeller, and the first oil impeller drives the lubricating oil in pressure oil pump sucking fuel tank and pumping
To main oil pump, oil sources is provided for main oil pump.Lubricating oil oil pressure after the first oil impeller declines, and can satisfy steam-turbine lubrication system
The demand of system charge oil pressure.And the lubricating oil after another part boosting drives the second oil impeller, the drive first of the second oil impeller is cold
But water pump operation, the first cooling water pump are that subsidiary engine cooler pump send cooling water.The subsidiary engine cooling system and method, are used in vapour
Partial pressure oil in turbine lubricating system is used to supply water for subsidiary engine cooler, and operational reliability is high, and station service can be effectively reduced
Rate, it is energy saving.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of subsidiary engine cooling system described in the embodiment of the present invention.
Description of symbols：
1, main oil pump, 2, pressure oil pump, the 3, first oil impeller, 4, fuel tank, the 5, second oil impeller, the 6, first cooling water pump,
7, subsidiary engine cooler, 8, steam turbine, 9, steam-turbine lubricating system, the 10, second cooling water pump, 11, motor, the 100, first oil circuit,
200, the second oil circuit, 300, inlet pipeline, 400, water return pipeline.
Specific embodiment
The embodiment of the present invention is described in detail below：
As shown in Figure 1, subsidiary engine cooling system described in the present embodiment, including main oil pump 1, pressure oil pump 2, the first oil impeller
3, the output shaft of fuel tank 4, the second oil impeller 5, the first cooling water pump 6 and subsidiary engine cooler 7, the main oil pump 1 and steam turbine 8 connects
It connects, first oil impeller 3 is connect with pressure oil pump 2, and the oil inlet of the oil outlet of the main oil pump 1 and the first oil impeller 3 is logical
The connection of the first oil circuit 100 is crossed, the oil outlet of first oil impeller 3 is connected to steam-turbine lubricating system 9, the pressure oil pump 2
Oil inlet be connected to fuel tank 4, the oil inlet of the oil outlet of the pressure oil pump 2 and main oil pump 1 passes through the second oil circuit 200 company
Logical, second oil impeller 5 is connect with cooling water pump, and the oil inlet of second oil impeller 5 is connected to the first oil circuit 100, institute
The oil outlet for stating the second oil impeller 5 is connected to fuel tank 4, and the water outlet of the cooling water pump and the water inlet of subsidiary engine cooler 7 are logical
Cross the connection of inlet pipeline 300.Above-mentioned subsidiary engine cooling system, lubricating oil is by driven by 8 output shaft of steam turbine 1 liter of main oil pump
Pressure, the lubricating oil after a part boosting drive the first oil impeller 3, and the first oil impeller 3 drives pressure oil pump 2 to suck in fuel tank 4
Lubricating oil is simultaneously pumped to main oil pump 1, provides oil sources for main oil pump 1.Lubricating oil oil pressure after the first oil impeller 3 declines, can
Meets the needs of 9 charge oil pressure of steam-turbine lubricating system.And the lubricating oil after another part boosting drives the second oil impeller 5, the
Two oil impellers 5 drive the operation of the first cooling water pump 6, and the first cooling water pump 6 is that subsidiary engine cooler 7 pumps cooling water.The subsidiary engine is cold
But system, the partial pressure oil being used in steam-turbine lubricating system 9 are used to supply water for subsidiary engine cooler 7, operational reliability
Station service power consumption rate can be effectively reduced in height, energy saving.
In the present embodiment, the subsidiary engine cooling system further includes the second cooling water pump 10, second cooling water pump 10
It is arranged in parallel with the first cooling water pump 6, to increase cooling water flow, provides enough cooling waters for subsidiary engine cooler 7.It is preferred that
Ground, the subsidiary engine cooling system further include motor 11, and the output shaft of the motor 11 is connect with the second cooling water pump 10, and second is cold
But water pump 10 provides power using motor 11, guarantees in the case where oil pressure deficiency causes the first cooling water pump 6 that can not start, auxiliary
Machine cooler 7 still is able to obtain cooling water, and subsidiary engine is avoided to burn out.The water inlet and subsidiary engine of cooling water pump described in the present embodiment
The water outlet of cooler 7 is connected to by water return pipeline 400, to reduce water temperature.
Subsidiary engine cooler 7 described in the present embodiment is more, and the connection type between the subsidiary engine cooler 7 is parallel connection.
Specifically, cooling water respectively enters in more subsidiary engine coolers 7 being arranged in parallel, and cools down to different subsidiary engines.It can manage
Xie Di, the quantity of subsidiary engine cooler 7 can be one, can also be more, be not limited thereto.
Preferably, the pressure oil pump 2 is arranged in fuel tank 4, and directly from the oil suction in fuel tank 4, structure is simple.The increasing
Pressure oil pump 2 is vane type centrifugal pump, has the advantages that uniform flow, smooth running.
Shown in referring to Fig.1, the present embodiment also provides a kind of subsidiary engine cooling means, includes the following steps：
The output shaft of steam turbine 8 drives main oil pump 1 to run, and makes the pressure rise of lubricating oil；
Lubricating oil after a part boosting drives the first oil impeller 3, the second oil of lubricating oil driving after another part boosting
Turbine 5；
Lubricating oil is sent after the decompression of the first oil impeller 3 to steam-turbine lubricating system 9, while the first oil impeller 3 drives pressurization
Oil pump 2 suck fuel tank 4 in lubricating oil and be pumped to main oil pump 1；
Second oil impeller 5 drives the operation of the first cooling water pump 6, and the first cooling water pump 6 is the pumping cooling of subsidiary engine cooler 7
Water.
Above-mentioned subsidiary engine cooling means, lubricating oil are boosted by the main oil pump 1 driven by 8 output shaft of steam turbine, and a part rises
Lubricating oil after pressure drives the first oil impeller 3, the lubricating oil that the first oil impeller 3 drives pressure oil pump 2 to suck in fuel tank 4 and pumping
To main oil pump 1, oil sources is provided for main oil pump 1.Lubricating oil oil pressure after the first oil impeller 3 declines, and can satisfy steam turbine profit
The demand of sliding 9 charge oil pressure of system.And the lubricating oil after another part boosting drives the second oil impeller 5, the second oil impeller 5 drives
The operation of first cooling water pump 6, the first cooling water pump 6 are that subsidiary engine cooler 7 pumps cooling water.The subsidiary engine cooling means will use
Partial pressure oil in steam-turbine lubricating system 9 is used to supply water for subsidiary engine cooler 7, and operational reliability is high, can be effectively reduced
Station service power consumption rate, it is energy saving.
Further, the subsidiary engine cooling means is further comprising the steps of：
The output shaft of motor 11 drives the operation of the second cooling water pump 10, and the second cooling water pump 10 is the pumping of subsidiary engine cooler 7
Cooling water.
Second cooling water pump 10 provides power using motor 11, guarantees to cause the first cooling water pump 6 can not in oil pressure deficiency
In the case where starting, subsidiary engine cooler 7 still is able to obtain cooling water, and subsidiary engine is avoided to burn out.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. a kind of subsidiary engine cooling system, which is characterized in that including main oil pump, pressure oil pump, the first oil impeller, fuel tank, the second oil
The output axis connection of turbine, the first cooling water pump and subsidiary engine cooler, the main oil pump and steam turbine, first oil impeller with
Pressure oil pump connection, the oil inlet of the oil outlet of the main oil pump and the first oil impeller pass through the first oil communication, and described first
The oil outlet of oil impeller is connected to steam-turbine lubricating system, and the oil inlet of the pressure oil pump is connected to fuel tank, the pressurised oil
By the second oil communication, second oil impeller is connect with the first cooling water pump for the oil outlet of pump and the oil inlet of main oil pump,
The oil inlet and the first oil communication of second oil impeller, the oil outlet of second oil impeller are connected to fuel tank, and described
The water outlet of one cooling water pump is connected to the water inlet of subsidiary engine cooler by inlet pipeline.
2. subsidiary engine cooling system according to claim 1, which is characterized in that it further include the second cooling water pump, described second
Cooling water pump is arranged in parallel with the first cooling water pump.
3. subsidiary engine cooling system according to claim 2, which is characterized in that it further include motor, the output shaft of the motor
It is connect with the second cooling water pump.
4. subsidiary engine cooling system according to claim 1, which is characterized in that the water inlet of first cooling water pump with it is auxiliary
The water outlet of machine cooler is connected to by water return pipeline.
5. subsidiary engine cooling system according to claim 1, which is characterized in that the subsidiary engine cooler is at least two, institute
Stating the connection type between subsidiary engine cooler is serial or parallel connection.
6. subsidiary engine cooling system according to claim 1, which is characterized in that the pressure oil pump is arranged in fuel tank.
7. subsidiary engine cooling system according to claim 1-6, which is characterized in that the pressure oil pump is vane type
Centrifugal pump.
8. a kind of subsidiary engine cooling means, which is characterized in that include the following steps：
The output shaft of steam turbine drives main oil pump operation, makes the pressure rise of lubricating oil；
Lubricating oil after a part boosting drives the first oil impeller, and the lubricating oil after another part boosting drives the second oil impeller；
Lubricating oil is sent after the decompression of the first oil impeller to steam-turbine lubricating system, while the first oil impeller drives pressure oil pump sucking
Lubricating oil in fuel tank is simultaneously pumped to main oil pump；
Second oil impeller drives the operation of the first cooling water pump, and the first cooling water pump is that subsidiary engine cooler pump send cooling water.
9. subsidiary engine cooling means according to claim 8, which is characterized in that further comprising the steps of：
The output shaft of motor drives the operation of the second cooling water pump, and the second cooling water pump is that subsidiary engine cooler pump send cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645807.XA CN106246326B (en) | 2016-08-08 | 2016-08-08 | Subsidiary engine cooling system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610645807.XA CN106246326B (en) | 2016-08-08 | 2016-08-08 | Subsidiary engine cooling system and method |
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| CN106246326A CN106246326A (en) | 2016-12-21 |
| CN106246326B true CN106246326B (en) | 2018-11-20 |
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| CN201610645807.XA Active CN106246326B (en) | 2016-08-08 | 2016-08-08 | Subsidiary engine cooling system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109779737A (en) * | 2017-11-13 | 2019-05-21 | 日立汽车系统(苏州）有限公司 | The system and method for driving engine water pump and/or booster |
| CN107941037B (en) * | 2017-12-21 | 2023-08-18 | 中国电力工程顾问集团西北电力设计院有限公司 | Auxiliary engine cooling water system with high-low arrangement |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205876471U (en) * | 2016-08-08 | 2017-01-11 | 中国能源建设集团广东省电力设计研究院有限公司 | Auxiliary engine cooling system |
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| GB956225A (en) * | 1962-12-24 | 1964-04-22 | Rolls Royce & Associates Ltd | Improvements in nuclear reactors |
| US4629033A (en) * | 1984-06-28 | 1986-12-16 | General Electric Company | Positive displacement pump utilized in lube oil system for turbomachinery |
| CN2934584Y (en) * | 2006-08-04 | 2007-08-15 | 哈尔滨汽轮机厂有限责任公司 | Main oil pump-oil impeller fueller |
| CN202578808U (en) * | 2012-02-28 | 2012-12-05 | 长城汽车股份有限公司 | Pressurized air cooling system and vehicle |
| CN203223343U (en) * | 2013-04-01 | 2013-10-02 | 中国海洋石油总公司 | Hydraulic turbine semi-barren liquor pump |
| CN103791732B (en) * | 2013-08-09 | 2015-12-23 | 华能国际电力股份有限公司 | Cooling device and cooling method for main machine equipment and auxiliary equipment of thermal power plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205876471U (en) * | 2016-08-08 | 2017-01-11 | 中国能源建设集团广东省电力设计研究院有限公司 | Auxiliary engine cooling system |
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