CN110553027A - Gear box cooling and lubricating system and wind generating set with same - Google Patents
Gear box cooling and lubricating system and wind generating set with same Download PDFInfo
- Publication number
- CN110553027A CN110553027A CN201810555388.XA CN201810555388A CN110553027A CN 110553027 A CN110553027 A CN 110553027A CN 201810555388 A CN201810555388 A CN 201810555388A CN 110553027 A CN110553027 A CN 110553027A
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- Prior art keywords
- oil
- gear
- control valve
- radiator
- temperature
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0417—Heat exchangers adapted or integrated in the gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0476—Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/02—Arrangements for conditioning of lubricants in the lubricating system by cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
- F16N7/40—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems in a closed circulation system
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a cooling and lubricating system of a gear box, which comprises the gear box, an oil supply device communicated with an oil outlet of the gear box and a heat dissipation device, wherein an inlet of the heat dissipation device is communicated with an output port of the oil supply device, an outlet of the heat dissipation device is communicated with an oil inlet of the gear box, and the heat dissipation device comprises a heat radiator and a control valve which are connected in parallel; when the temperature of gear oil in the system is lower than a first preset temperature, all the gear oil output by the oil supply device enters the gear box through the control valve; when the temperature of gear oil in the system is higher than a first preset temperature and lower than a second preset temperature, gear oil output by the oil supply device enters the gear box through the control valve and the radiator; when the temperature of the gear oil in the system is higher than a second preset temperature, all the gear oil output by the oil supply device enters the gear box through the radiator. The reliability of the equipment is improved, the service life of the cooling and lubricating system of the gear box is prolonged, the maintenance time of the cooling and lubricating system is shortened, and the manufacturing cost and the maintenance and replacement cost of the cooling and lubricating system are reduced.
Description
Technical Field
The invention relates to the field of wind power generation, in particular to a cooling and lubricating system for a gear box. In addition, the invention also relates to a wind generating set with the system.
Background
The gear box is needed to be used as a key component in a plurality of devices, particularly in a wind generating set, the gear box is one of key components of a double-fed set, and the operation effect of the gear box can directly influence the generating capacity of the wind generating set. Meanwhile, when the equipment runs at a high speed, high temperature can be generated in the gear box, and the gear box cooling and lubricating system serves as an important auxiliary system of the gear box, so that heat generated during the running of the gear box can be taken away, the requirement for lubricating gears in the gear box can be met, and the abrasion among the gears of the gear box is reduced.
at present, a gear box cooling and lubricating system mainly comprises an oil supply device, a temperature control valve, a radiator, a distributor and a pipeline. The system provides power for the whole circulation by an oil supply device, and the temperature control valve (assuming that the completely opening and closing temperatures of the temperature control valve are T1 and T2 respectively, namely when the temperature is less than or equal to T1, the temperature control valve is in a completely opening state, and when the temperature is greater than or equal to T2, the temperature control valve is in a completely closing state) adjusts the opening size of the valve in real time according to the oil temperature through the principle of thermal expansion and cold contraction of a temperature sensing element, so that the adjustment of the oil flowing to different pipelines is realized. When the temperature of the gear oil is lower than T1, the gear oil directly flows back to the gearbox without passing through the radiator; when the temperature is higher than T2, the gear oil flows back to the gear box after being radiated by the radiator. When the gearbox runs in a low-temperature environment, the flowing direction of gear oil is adjusted through the temperature control valve, and the temperature rising time of a gearbox body can be reduced.
However, there is still a certain gap from theory for the actual working conditions of the thermostatic valve. When the temperature reaches T1, the temperature control valve can not be opened by 100 percent and is opened by 90 percent at most; also, when the temperature reaches T2, the thermostatic valve cannot be closed 100%, and is closed 90% at most. Therefore, there is a certain error from the theory in the actual operation of the thermo-valve. The service life of the temperature control valve is about 30000 times generally, and the temperature control valve will lose efficacy in about two years in actual service life, so that a stuck state occurs. When the temperature control valve is blocked, gear oil only flows through the radiator possibly, and when the gearbox is started in a low-temperature environment, the temperature rise time of the box body is prolonged, the grid connection time of the wind generating set is prolonged, and the generating capacity of the set is reduced; or the gear oil does not flow through the radiator completely, so that the overtemperature of the gear box is caused, and the shutdown of the wind generating set is caused due to the overtemperature; or part of the temperature rises through the radiator and part of the temperature does not flow through the radiator, so that the temperature rise time of the box body is prolonged and the overtemperature of the gearbox is possibly caused according to the blocked position of the temperature control valve. Therefore, the damage of the temperature control valve directly influences the operation of equipment, and the generated energy and the availability of the wind generating set are directly influenced in the wind generating set. Meanwhile, the temperature control valve is high in cost and high in replacement difficulty, and gear oil is inevitably leaked out to pollute other parts.
Therefore, how to provide a gearbox cooling and lubricating system with high reliability and low cost is a technical problem which needs to be solved by the technical personnel in the field at present.
Disclosure of Invention
The invention aims to provide a gear box cooling and lubricating system, which controls the cooling of gear oil according to the resistance change caused by the temperature change of the gear oil, improves the reliability and reduces the cost. Another object of the invention is to provide a wind power plant with such a system.
In order to solve the technical problem, the invention provides a cooling and lubricating system of a gearbox, which comprises the gearbox, an oil supply device communicated with an oil outlet of the gearbox and a heat dissipation device, wherein an inlet of the heat dissipation device is communicated with an output port of the oil supply device, an outlet of the heat dissipation device is communicated with an oil inlet of the gearbox, and the heat dissipation device comprises a radiator and a control valve which are connected in parallel;
When the temperature of gear oil in the system is lower than a first preset temperature, the viscosity of the gear oil is higher than the first preset viscosity, so that the internal resistance of the gear oil flowing through the radiator is higher than the opening pressure of the control valve, the control valve is opened, the gear oil does not flow in the radiator, and the gear oil output by the oil supply device completely enters the gearbox through the control valve;
When the temperature of gear oil in the system is higher than the first preset temperature and lower than the second preset temperature, the viscosity of the gear oil is lower than the first preset viscosity and higher than the second preset viscosity, so that the control valve is partially opened, the gear oil can flow in the radiator, and the gear oil output by the oil supply device simultaneously enters the gear box through the control valve and the radiator;
When the temperature of gear oil in the system is higher than the second preset temperature, the viscosity of the gear oil is lower than the second preset viscosity, so that the internal resistance of the gear oil flowing through the radiator is lower than the opening pressure of the control valve, the control valve is closed, the gear oil flows in the radiator, and the gear oil output by the oil supply device completely enters the gearbox through the radiator;
The first preset temperature is lower than the second preset temperature, and the first preset viscosity is higher than the second preset viscosity.
Preferably, the radiator is embodied as a plate-fin radiator, and the internal resistance of the gear oil flowing through is controlled by the fin pitch of the plate-fin radiator.
Preferably, the control valve is embodied as a one-way valve, and the opening pressure of the one-way valve is controlled by an internal spring.
Preferably, the control valve is a hydraulic control proportional control valve, and the pilot hydraulic control valve controls the opening pressure of the hydraulic control proportional control valve.
Preferably, a filter is disposed between the oil supply device and the cooling device.
Preferably, a distributor is arranged between the heat sink and the gear box, the distributor comprises a mixing pipeline for mixing gear oil, one end of the mixing pipeline is connected with an outlet of the heat sink, and the other end of the mixing pipeline is connected with an oil inlet of the gear box.
Preferably, the distributor further comprises a temperature detector and a pressure detector arranged at an oil inlet of the gearbox.
The invention provides a wind generating set, which comprises a gear box cooling and lubricating system and is characterized in that the gear box cooling and lubricating system is specifically any one of the gear box cooling and lubricating systems.
The invention provides a cooling and lubricating system of a gear box, which comprises the gear box, an oil supply device communicated with an oil outlet of the gear box and a heat dissipation device, wherein an inlet of the heat dissipation device is communicated with an output port of the oil supply device, an outlet of the heat dissipation device is communicated with an oil inlet of the gear box, and the heat dissipation device comprises a heat radiator and a control valve which are connected in parallel;
When the temperature of gear oil in the system is lower than a first preset temperature, the viscosity of the gear oil is higher than the first preset viscosity, so that the internal resistance of the gear oil flowing through the radiator is higher than the opening pressure of the control valve, the control valve is opened, the gear oil does not flow in the radiator, and all the gear oil output by the oil supply device enters the gearbox through the control valve;
When the temperature of gear oil in the system is higher than a first preset temperature and lower than a second preset temperature, the viscosity of the gear oil is lower than the first preset viscosity and higher than the second preset viscosity, so that the control valve is partially opened, the gear oil can flow in the radiator, and the gear oil output by the oil supply device simultaneously enters the gear box through the control valve and the radiator;
when the temperature of gear oil in the system is higher than a second preset temperature, the viscosity of the gear oil is lower than the second preset viscosity, so that the internal resistance of the gear oil flowing through the radiator is lower than the opening pressure of the control valve, the control valve is closed, the gear oil flows in the radiator, and all the gear oil output by the oil supply device enters the gearbox through the radiator;
the first preset temperature is lower than the second preset temperature, and the first preset viscosity is higher than the second preset viscosity.
The different of viscosity under the different temperatures of gear oil is utilized, and then the internal resistance that flows at the radiator is different to the realization is to the control of gear oil flow mode, adopts the more simple control valve of structure to replace the temperature-sensing valve, has solved traditional cooling and lubrication system temperature-sensing valve fault rate height, gets into the inhomogeneous problem of gear oil mixture in the distributor, improve equipment reliability. And the control valve has simple structure, long service life and low cost, thereby prolonging the service life of the cooling and lubricating system of the gear box, reducing the maintenance time of the cooling and lubricating system and reducing the manufacturing cost and the maintenance and replacement cost of the cooling and lubricating system.
The invention also provides a wind generating set with the gear box cooling and lubricating system, and the gear box cooling and lubricating system has the technical effects, so that the wind generating set also has the same technical effects, and the details are not described herein.
Drawings
FIG. 1 is a system schematic diagram of one embodiment of a gearbox cooling and lubrication system provided by the present invention.
Detailed Description
The core of the invention is to provide a gear box cooling and lubricating system, which controls the cooling of gear oil according to the resistance change caused by the temperature change of the gear oil, improves the reliability and reduces the cost. The other core of the invention is to provide a wind generating set with the system.
in order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a system schematic diagram of an embodiment of a cooling and lubricating system for a gearbox according to the present invention.
the specific embodiment of the invention provides a cooling and lubricating system of a gear box, which comprises the gear box 1, an oil supply device 2 and a heat dissipation device 3, and a filter 4 can be arranged between the oil supply device 2 and the cooling device. The oil outlet of the gear box 1 is communicated with the oil supply device 2, the output port of the oil supply device 2 is communicated with the inlet of the heat dissipation device 3, the outlet of the heat dissipation device 3 is communicated with the oil inlet of the gear box 1, and the oil supply device 2 sucks out gear oil in the gear box 1, outputs the gear oil to the heat dissipation device 3 for cooling, and finally flows back to the gear box 1. The heat sink 3 comprises a heat sink and a control valve connected in parallel, i.e. both share the same inlet and the same outlet.
The gear oil has the characteristic that the viscosity decreases in a nonlinear way along with the increase of the temperature, for example, the GB/T320 or ISO 320 gear oil is adopted, and when the temperature of the gear oil changes from-30 ℃ to 100 ℃ (including an endpoint value), the corresponding viscosity range changes from 113900mm2/s to 62mm2/s (including an endpoint value).
When the temperature of gear oil in the system is lower than a first preset temperature, namely the temperature is lower, the viscosity of the gear oil is higher than the first preset viscosity, namely the viscosity of the gear oil is higher, at the moment, the internal resistance which needs to be overcome when the gear oil flows through the radiator is higher than the opening pressure of the control valve, actually, the internal resistance is far higher, under the action of the oil supply device 2, the pressure of the gear oil is gradually increased until the opening pressure of the control valve is reached, and then the control valve is opened, but the pressure at the moment still can not overcome the internal resistance which needs to flow through the radiator under the viscosity, namely the gear oil can not flow in the radiator, and the gear oil output by the oil supply device 2 completely enters the gear box 1 through the control valve, namely the gear oil can not be cooled and directly flows back to the.
when the temperature of the gear oil in the system is higher than a first preset temperature and lower than a second preset temperature, namely the temperature is raised but does not reach a higher temperature, the viscosity of the gear oil is lower than the first preset viscosity and higher than the second preset viscosity, namely, the viscosity of the gear oil is reduced, the internal resistance which needs to be overcome when the gear oil flows through the radiator is close to the opening pressure of the control valve, can float in a range slightly larger than and slightly smaller than the gear oil pressure, when the gear oil pressure is increased to the opening pressure of the control valve, the control valve is partially opened, the pressure provided at the same time can overcome the internal resistance of the gear oil flowing through the radiator under the viscosity, and can flow in the radiator, the gear oil output by the oil supply device 2 simultaneously enters the gear box 1 through the control valve and the radiator, namely, the gear oil is cooled in one part and not cooled in the other part, and the two parts are mixed and then flow back to the gear box 1. Meanwhile, the flow of each part can be changed according to different temperatures, and in the interval that the temperature is higher and lower than the first preset temperature and the second preset temperature, the internal resistance to be overcome is smaller, namely, more gear oil enters the radiator, and the radiating effect is ensured.
When the temperature of gear oil in the system is higher than a second preset temperature, namely the temperature is higher, the viscosity of the gear oil is lower than the second preset viscosity, namely the viscosity of the gear oil is lower, at the moment, the internal resistance which needs to be overcome when the gear oil flows through the radiator is smaller than the opening pressure of the control valve, actually, the internal resistance which needs to be overcome when the gear oil flows through the radiator is far smaller than the opening pressure of the control valve, in the process of increasing the pressure of the gear oil, the provided pressure can overcome the internal resistance which needs to flow through the radiator when the gear oil with the viscosity is increased, so that the control valve is kept closed, the gear oil directly flows in the radiator, all the gear oil output by the oil supply device 2 enters the gear box 1 through the radiator, namely all.
The first preset temperature is lower than the second preset temperature, and the first preset viscosity is higher than the second preset viscosity. When the temperature is low, the gear oil directly flows back to the gear box 1 without being cooled, when the temperature is slightly increased, part of the gear oil is cooled and then flows back to the gear box 1, and when the temperature is high, the gear oil is completely cooled and then the gear box 1 is left.
The different of viscosity under the different temperatures of gear oil is utilized, and then the internal resistance that flows at the radiator is different to the realization is to the control of gear oil flow mode, adopts the more simple control valve of structure to replace the temperature-sensing valve, has solved traditional cooling and lubrication system temperature-sensing valve fault rate height, gets into the inhomogeneous problem of gear oil mixture in the distributor, improve equipment reliability. And the control valve has simple structure, long service life and low cost, thereby prolonging the service life of the cooling and lubricating system of the gear box, reducing the maintenance time of the cooling and lubricating system and reducing the manufacturing cost and the maintenance and replacement cost of the cooling and lubricating system.
specifically, the radiator may be a plate-fin radiator 31, and the internal resistance when the gear oil flows is controlled by the fin pitch of the plate-fin radiator 31. The control valve may be a check valve 32 and the cracking pressure of the check valve 32 is controlled by an internal spring. The size of the internal flow channel of the heat dissipation device is different. The distance between the fins of the plate-fin radiator 31 is smaller, and the resistance is larger; the check valve 32 has a larger internal flow path and less resistance than the fins. The resistance difference between the plate-fin radiator 31 and the one-way valve 32 is large along with the temperature change of the gear oil, the resistance change along with the temperature change is more obvious, and the accuracy and the stability of control are improved.
Other types of radiators such as a coil radiator can be adopted, the diameter of the pipe can be controlled, or a pilot-operated proportional control valve is adopted as a control valve, and the pilot-operated proportional control valve is used for controlling the opening pressure of the pilot-operated proportional control valve, so that the control process can be realized, and the control process is within the protection scope of the invention.
On the basis of the cooling and lubricating system for the gear box provided by each embodiment, a distributor 5 is arranged between the heat sink 3 and the gear box 1, the distributor 5 comprises a mixing pipeline 51 for mixing gear oil, one end of the mixing pipeline 51 is connected with an outlet of the heat sink 3, and the other end of the mixing pipeline 51 is connected with an oil inlet of the gear box 1. The distributor 5 further comprises a temperature detector 52 and a pressure detector 53 arranged at the oil inlet of the gearbox 1.
The mixing pipeline 51 is long, for example, more than 1.5m, and the gear oil on the two paths of the radiator and the control valve can be fully mixed in the mixing pipeline 51 before entering the distributor 5, so that the measured value of the temperature detector 52 can truly reflect the temperature of the oil inlet of the gearbox 1, the situations of false alarm and failure of temperature detection of the gearbox 1 are reduced, and the operation risk of the gearbox 1 is reduced.
In addition to the above-mentioned gear box cooling and lubricating system, a specific embodiment of the present invention further provides a wind turbine generator system including the above-mentioned gear box cooling and lubricating system, and the structure of other parts of the wind turbine generator system refers to the prior art and is not described herein again.
The gear box cooling and lubricating system and the wind generating set with the system provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. a cooling and lubricating system of a gear box comprises the gear box (1) and an oil supply device (2) communicated with an oil outlet of the gear box (1), and is characterized by further comprising a heat dissipation device (3), wherein an inlet of the heat dissipation device (3) is communicated with an output port of the oil supply device (2), an outlet of the heat dissipation device (3) is communicated with an oil inlet of the gear box (1), and the heat dissipation device (3) comprises a heat radiator and a control valve which are connected in parallel;
When the temperature of gear oil in the system is lower than a first preset temperature, the viscosity of the gear oil is higher than the first preset viscosity, so that the internal resistance of the gear oil flowing through the radiator is higher than the opening pressure of the control valve, the control valve is opened, the gear oil does not flow in the radiator, and the gear oil output by the oil supply device (2) completely enters the gear box (1) through the control valve;
When the temperature of gear oil in the system is higher than the first preset temperature and lower than a second preset temperature, the viscosity of the gear oil is lower than the first preset viscosity and higher than the second preset viscosity, so that the control valve is partially opened, the gear oil can flow in the radiator, and the gear oil output by the oil supply device (2) simultaneously passes through the control valve and the radiator and enters the gear box (1);
When the temperature of gear oil in the system is higher than the second preset temperature, the viscosity of the gear oil is lower than the second preset viscosity, so that the internal resistance of the gear oil flowing through the radiator is lower than the opening pressure of the control valve, the control valve is closed, the gear oil flows in the radiator, and the gear oil output by the oil supply device (2) completely enters the gear box (1) through the radiator;
The first preset temperature is lower than the second preset temperature, and the first preset viscosity is higher than the second preset viscosity.
2. Gearbox cooling and lubrication system according to claim 1, characterised in that the radiator is embodied as a plate radiator (31) and the internal resistance of the gear oil flow is controlled by the fin pitch of the plate radiator (31).
3. gearbox cooling and lubrication system according to claim 2, characterised in that the control valve is embodied as a non-return valve (32) and that the opening pressure of the non-return valve (32) is controlled by an internal spring.
4. Gearbox cooling and lubrication system according to claim 2, characterised in that said control valve is embodied as a pilot-operated proportional regulating valve, and the opening pressure of said pilot-operated proportional regulating valve is controlled by a pilot-operated fluid control valve.
5. Gearbox cooling and lubrication system according to claim 1, characterised in that a filter (4) is arranged between the oil supply (2) and the cooling device.
6. Gearbox cooling and lubricating system according to any of claims 1-5, characterised in that a distributor (5) is arranged between the heat sink (3) and the gearbox (1), that the distributor (5) comprises a mixing line (51) for mixing gear oil, that one end of the mixing line (51) is connected to the outlet of the heat sink (3), and that the other end of the mixing line (51) is connected to the oil inlet of the gearbox (1).
7. gearbox cooling and lubrication system according to claim 6, characterised in that said distributor (5) further comprises a temperature detector (52) and a pressure detector (53) arranged at an oil inlet of said gearbox (1).
8. Wind power plant comprising a gearbox cooling and lubrication system, characterized in that the gearbox cooling and lubrication system is in particular a gearbox cooling and lubrication system according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555388.XA CN110553027A (en) | 2018-06-01 | 2018-06-01 | Gear box cooling and lubricating system and wind generating set with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810555388.XA CN110553027A (en) | 2018-06-01 | 2018-06-01 | Gear box cooling and lubricating system and wind generating set with same |
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| Publication Number | Publication Date |
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| CN110553027A true CN110553027A (en) | 2019-12-10 |
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| CN201810555388.XA Pending CN110553027A (en) | 2018-06-01 | 2018-06-01 | Gear box cooling and lubricating system and wind generating set with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324019A (en) * | 2021-04-30 | 2021-08-31 | 华电电力科学研究院有限公司 | Ceramic membrane online fan gearbox oil treatment method |
| CN114033847A (en) * | 2021-11-04 | 2022-02-11 | 华能中电威海风力发电有限公司 | Oil temperature control device for gear box |
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