CN210240514U - Wind generating set gear box lubricating and cooling system - Google Patents
Wind generating set gear box lubricating and cooling system Download PDFInfo
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- CN210240514U CN210240514U CN201921129027.5U CN201921129027U CN210240514U CN 210240514 U CN210240514 U CN 210240514U CN 201921129027 U CN201921129027 U CN 201921129027U CN 210240514 U CN210240514 U CN 210240514U
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Abstract
The utility model discloses a wind generating set gear box lubricating and cooling system. The system uses pressure control to replace temperature control to distribute the lubricating oil entering the air cooler, and as long as the pressure of the passing lubricating oil is not higher than the set pressure of the pressure control valve, all the lubricating oil enters the air cooler, so that the lubricating oil can be effectively cooled as much as possible; meanwhile, the pressure control valve is high in reliability, and the problems that the temperature control valve is low in reliability and easy to damage, lubricating oil is too high in temperature, and the power of a fan is limited are solved. Meanwhile, the pressure control valve is used as a safety valve of the system and is positioned at the outlet of the filter, when the pressure of the lubricating oil exceeds the set pressure of the pressure control valve, the clean lubricating oil filtered by the filter directly enters the gear box through the pressure control valve, the phenomena that the safety valve of the traditional lubricating system is polluted, blocked or even damaged by the unfiltered lubricating oil are effectively avoided, and the problem that the radiator bursts or leaks oil due to overhigh pressure is solved.
Description
Technical Field
The utility model relates to a wind power generation technical field especially relates to a wind generating set gear box lubricating and cooling system.
Background
The gearbox is an important mechanical component widely applied in a wind generating set, and mainly has the function of transmitting power generated by a wind wheel under the action of wind power to a generator and enabling the generator to obtain corresponding rotating speed. The lubricating and cooling system has the functions of forcibly lubricating moving parts in the gear box and filtering and cooling lubricating oil.
In the prior art, the lubricating and cooling system of the wind power gear box has the following problems:
(1) in the prior art, a system safety valve is usually arranged between an outlet of an oil pump and a filter to prevent the over-high pressure of a lubricating and cooling system, the gear box runs for many years, impurities generated by abrasion of parts such as gears and the like are mixed into lubricating oil in the running process, the lubricating oil containing the impurities enters an oil way where the safety valve is located without being filtered, the phenomena of pollution blockage, blockage and even damage of the safety valve are easily caused, and the produced adverse effects comprise that ① is not cooled and the filtered lubricating oil returns to the gear box again, so that the lubricating, cooling and filtering effects cannot be realized, and the phenomena of over-high lubricating oil temperature and fan limited power running are caused;
(2) in the prior art, a wind power gear box lubricating and cooling system usually adopts a temperature control mode, a temperature control valve is arranged in the system, lubricating oil is distributed according to different temperatures of the lubricating oil, and in the actual use process, because the reliability of the temperature control valve is low, failure often occurs, the failure of the temperature control valve can cause the pressure of a radiating fin to be too high under the condition of low oil temperature, burst or oil seepage occurs, the failure of the temperature control valve can cause the temperature of the system to be too high under the condition of high oil temperature, and the power limiting phenomenon can occur on a fan;
(3) in the wind power gear box lubricating and cooling system in the prior art, the wind scooper of the wind cooler is made of common canvas materials, and is easy to age, deteriorate and crack, so that the heat dissipation of the wind cooler is adversely affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wind generating set gear box lubrication and cooling system to solve the wind-powered electricity generation gear box lubrication oil that exists at present and warm and lead to fan limit power to and the problem that the high radiator that leads to of pressure bursts or the oil impregnate.
In order to achieve the above object, the utility model provides a following scheme:
a wind generating set gear box lubricating and cooling system comprises: the device comprises a motor (1), a coupling (2), an electric pump (3), a mechanical pump (4), a gear box output shaft (5), an electric pump oil pumping pipe (6), a mechanical pump oil pumping pipe (7), an electric pump check valve (8), a mechanical pump check valve (9), a precise filter element (13), a coarse filter element (14), a filter bypass valve (15), a pressure control valve (17), an overflow pipe (18), an air cooler inlet oil pipe (19), an air cooler (21), an air cooler outlet oil pipe (24), an oil distributor (25) and a gear box (26);
the electric pump (3) is connected with the motor (1) through the coupling (2), and an oil suction port of the electric pump (3) is connected with the gear box (26) through the electric pump oil pumping pipe (6); the input shaft of the mechanical pump (4) is connected with the output shaft (5) of the gear box, and the oil suction port of the mechanical pump (4) is connected with the gear box (26) through the mechanical pump oil pumping pipe (7); the outlet of the electric pump (3) is connected with the inlet of the electric pump check valve (8); the outlet of the mechanical pump (4) is connected with the inlet of the mechanical pump check valve (9); the outlet of the electric pump check valve (8) is connected with the outlet of the mechanical pump check valve (9); the inlet of the precise filter element (13) is connected with the outlet of the check valve (8) of the electric pump; the filter bypass valve (15) is connected with the precision filter element (13) in parallel; an outlet of the filter bypass valve (15) and an outlet of the precision filter element (13) are converged together and then connected with an inlet of the coarse filter element (14); the outlet of the coarse filter element (14) is connected with the inlet of the pressure control valve (17); the outlet of the pressure control valve (17) is directly connected with the gear box (26) through the overflow pipe (18); the inlet of the pressure control valve (17) is connected to the oil inlet of the radiator fin in the air cooler (21) through the inlet oil pipe (19) of the air cooler, and the oil outlet of the radiator fin in the air cooler (21) is connected with the oil distributor (25) through the outlet oil pipe (24) of the air cooler.
Optionally, the wind generating set gearbox lubricating and cooling system further includes: an oil drain ball valve (10); the oil drain ball valve is connected with an outlet of the electric pump check valve (8).
Optionally, the wind generating set gearbox lubricating and cooling system further includes: a first pressure tap (11) and a second pressure tap (33); one end of the first pressure measuring joint (11) is connected with an outlet of the check valve (8) of the electric pump, and the other end of the first pressure measuring joint (11) is connected with the gear box (26); the second pressure tap (33) is connected to the inlet of the pressure control valve (17).
Optionally, the wind generating set gearbox lubricating and cooling system further includes: a first pressure sensor (12); the first pressure sensor (12) is connected to the outlet of the electric pump check valve (8).
Optionally, the wind generating set gearbox lubricating and cooling system further includes: a differential pressure transmitter (16); the inlet of the differential pressure signal generator (16) is connected with the inlet of the precision filter element (13), and the outlet of the differential pressure signal generator (16) is connected with the outlet of the coarse filter element (14).
Optionally, the air cooler (21) comprises: a radiator fin (30) and a bypass check valve (31); an oil inlet of the radiator fin (30) is connected with the inlet oil pipe (19) of the air cooler, and an oil outlet of the radiator fin (30) is connected with the outlet oil pipe (24) of the air cooler; the bypass check valve (31) is connected in parallel with the radiator fin (30).
Optionally, the air cooler (21) further comprises: a wind scooper (22) and a fan (32); the fan (32) is installed on one side of the radiator fin (30); the wind scooper (22) is installed between the fan (32) and the cabin ventilation opening.
Optionally, the wind generating set gearbox lubricating and cooling system further includes: a second pressure sensor (20) and a pressure gauge (23); the oil outlet of the radiator fin is sequentially connected with the second pressure sensor (20) and the pressure gauge (23).
Optionally, the wind generating set gearbox lubricating and cooling system further includes: a temperature sensor (27), a temperature control switch (28) and an electric heater (29); the electric heater (29) is immersed in the lubricating oil inside the gearbox (26); the temperature sensor (27) is mounted on the gear box (26) and used for detecting the temperature of lubricating oil in the gear box (26); the electric interface of the temperature sensor (27) is connected with one end of the temperature control switch (28), and the other end of the temperature control switch (28) is connected with the motor (1).
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
the utility model provides a wind generating set gear box lubrication and cooling system, wind generating set gear box lubrication and cooling system uses pressure control to replace traditional temperature control, distributes the lubricating oil that gets into air cooler (21), as long as the lubricating oil pressure that passes through is not higher than the set pressure of pressure control valve (17), then whole lubricating oil will get into air cooler (21) to ensure that as much lubricating oil as possible is effectively cooled; meanwhile, the pressure control valve (17) is high in reliability, and the problems that the temperature control valve is low in reliability and easy to damage, so that the temperature of lubricating oil is too high, and the power of a fan is limited are solved. Meanwhile, the pressure control valve (17) is used as a safety valve of the lubricating and cooling system and is positioned at the outlet of the filter, when the pressure of the lubricating oil exceeds the set pressure of the pressure control valve (17), the clean lubricating oil filtered by the filter directly enters the gear box (26) through the pressure control valve (17), the phenomena that the safety valve of the traditional lubricating system is polluted and blocked by the unfiltered lubricating oil and even damaged are effectively avoided, and the problem that the radiator bursts or seeps oil due to overhigh pressure is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings provided by the present invention without any creative effort.
FIG. 1 is a schematic structural view of a gear box lubricating and cooling system of a wind generating set provided by the present invention;
the reference numbers in the drawings are respectively:
1. the motor 2, the coupling 3, the electric pump 4, the mechanical pump 5, the gear box output shaft 6, the electric pump oil pumping pipe 7, the mechanical pump oil pumping pipe 8, the electric pump check valve 9, the mechanical pump check valve 10, the oil drain ball valve 11, the first pressure measuring joint 12, the first pressure sensor 13, the precision filter element 14, the coarse filter element 15, the filter bypass valve 16, the pressure difference transmitter 17, the pressure control valve 18, the overflow pipe 19, the air cooler inlet oil pipe 20, the second pressure sensor 21, the air cooler 22, the air guide cover 23, the pressure gauge 24, the air cooler outlet oil pipe 25, the oil distributor 26, the gear box 27, the temperature sensor 28, the temperature control switch 29, the electric heater 30, the radiator sheet 31, the bypass check valve 32, the fan 33 and the second pressure measuring joint.
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 only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a wind generating set gear box lubrication and cooling system to solve the wind-powered electricity generation gear box lubrication oil that exists at present and warm and lead to fan limit power to and the problem that the too high radiator that leads to of pressure bursts or the oil impregnate, guarantee wind generating set safety, move steadily.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is the utility model provides a lubricating and cooling system for a gear box of a wind generating set. Referring to fig. 1, the utility model provides a wind generating set gear box lubricating and cooling system includes: the air cooler comprises a motor (1), a coupler (2), an electric pump (3), a mechanical pump (4), a gear box output shaft (5), an electric pump oil pumping pipe (6), a mechanical pump oil pumping pipe (7), an electric pump check valve (8), a mechanical pump check valve (9), an oil drain ball valve (10), a first pressure measuring joint (11), a first pressure sensor (12), a precise filter element (13), a rough filter element (14), a filter bypass valve (15), a differential pressure communicator (16), a pressure control valve (17), an overflow pipe (18), an air cooler inlet oil pipe (19), a second pressure sensor (20), an air cooler (21), an air guide cover (22), a pressure gauge (23), an air cooler outlet oil pipe (24), an oil distributor (25), a gear box (26), a temperature sensor (27), a temperature control switch (28), an electric heater (29), a radiator sheet (30), an air cooler, a fan, a bypass one-way valve (31), a fan (32) and a second pressure measuring joint (33).
The electric pump (3) and the mechanical pump (4) play a role in oil absorption, the electric pump (3) is connected with the motor (1) through the coupler (2), and an oil absorption port of the electric pump (3) is connected with the gear box (26) through the electric pump oil pumping pipe (6); an input shaft of the mechanical pump (4) is connected with an output shaft (5) of the gear box (26), the rotation of the output shaft (5) of the gear box drives the input shaft of the mechanical pump (26) to rotate, and an oil suction port of the mechanical pump (4) is connected with the gear box (26) through a mechanical pump oil suction pipe (7), so that the oil suction of the mechanical pump (4) is realized; the outlet of the electric pump (3) is connected with an electric pump check valve (8), the outlet of the mechanical pump (4) is connected with a mechanical pump check valve (9), the outlets of the electric pump check valve (8) and the mechanical pump check valve (9) are converged together and then connected with an oil drain ball valve (10), one end of a first pressure measuring joint (11), a first pressure sensor (12) and a precision filter element (13), the other end of the first pressure measuring joint (11) is directly connected with a gear box (26), a filter bypass valve (15) is connected with the precision filter element (13) in parallel, the outlet of the filter bypass valve (15) is converged together with the outlet of the precision filter element (13) and then connected with a rough filter element (14), a differential pressure transmitter (16) is connected with the whole consisting of the precision filter element (13), the rough filter element (14) and the filter bypass valve (15) in parallel, the outlet of the rough filter element (14) and the outlet of the differential pressure transmitter (16) are converged together and then connected with the inlet of, the inlet of the pressure control valve (17) is simultaneously connected with a second pressure measuring joint (33), and the outlet of the pressure control valve (17) is directly connected with the gear box (26) through an overflow pipe (18); an inlet of the pressure control valve (17) is connected to an oil inlet of a radiator fin in the air cooler (21) through an inlet oil pipe (19) of the air cooler, an oil outlet of the radiator fin is connected with an oil distributor (25) through an outlet oil pipe (24) of the air cooler, a bypass one-way valve (31) is connected in parallel with the radiator fin (30) in the air cooler (21), the set pressure of the bypass one-way valve (31) is generally 0.6MPa, the air cooler (21) further comprises an air guide cover (22), and the oil outlet of the radiator fin is simultaneously connected with a second pressure sensor (20) and a pressure gauge (23); an electric heater (29) is arranged in the gear box (26) and is immersed in lubricating oil, a temperature sensor (27) is arranged on the gear box (26) and is used for detecting the temperature of the lubricating oil in the gear box (26), an electric interface of the temperature sensor (27) is connected with a temperature control switch (28), and the temperature control switch (28) is connected with the motor (1).
Will be described below the operating principle of the wind turbine generator gearbox lubricating and cooling system is as follows:
the utility model discloses a mode that electric pump (3), mechanical pump (4) are united provides lubricating oil for the system, for the lubricating oil that lubricated cooling system provided enough flow, wherein the power of electric pump (3) comes from motor (1), and the power of mechanical pump (4) comes from gear box output shaft (5).
The electric pump check valve (8) is used for preventing the electric pump (8) from being damaged due to the backflow of lubricating oil, and the mechanical pump check valve (9) is used for preventing the mechanical pump (4) from being damaged due to the backflow of the lubricating oil.
The oil drain ball valve (10) is used for draining oil during maintenance.
The other end of the first pressure measuring joint (11) is directly connected with a gear box (26) and used for exhausting air.
The first pressure sensor (12) is used for measuring the outlet lubricating oil pressure of the electric pump (3) and the mechanical pump (4). In practical application, the first pressure sensor (12) is connected with a wind turbine main control system, the outlet lubricating oil pressure detected in real time is sent to the wind turbine main control system by the first pressure sensor (12), and the wind turbine main control system gives an alarm when the outlet lubricating oil pressure is too high or too low.
The utility model discloses lubricating system chooses for use two-stage filtration, including precision filtration and coarse filtration, realize by precision filter core (13) and coarse filter core (14) respectively. Under normal conditions, lubricating oil firstly enters the precision filter element (13) and then enters the rough filter element (14). However, when the temperature of the lubricating oil is low, the viscosity is high, and the pressure difference between the front and the rear of the precision filter element (13) is larger than the set pressure of the filter bypass valve (15), the bypass valve (15) is opened, and the lubricating oil only enters the rough filter element (14).
The differential pressure signal transmitter (16) is used for monitoring the pollution blockage condition of the precision filter element (13) and the coarse filter element (14). When the pressure difference value between the inlet of the precise filter element (13) and the outlet of the coarse filter element (14) reaches the set pressure value of the pressure difference signal transmitter (16), the pressure difference signal transmitter (16) sends out an alarm signal to remind the filter element to be replaced.
The pressure control valve (17) is arranged at the rear end of the filter, namely the outlet part of the coarse filter element (14). The outlet of the pressure control valve (17) is directly connected with the gear box (26) through an overflow pipe (18). Set pressure P of pressure control valve 170Can be regulated, usually 0.6MPa<P0<1.0MPa when the lubricating oil pressure at the inlet of the pressure control valve (17) is higher than the set pressure P of the pressure control valve (17)0When the pressure control valve (17) is opened, part of lubricating oil enters the gear box (26) through the pressure control valve (17) and the overflow pipe (18), so that the overflow function is realized, and meanwhile, the lubricating oil overflowing into the gear box (26) is ensured to be filtered clean lubricating oil.
The second pressure measuring joint (33) is connected with the inlet of the pressure control valve (17) and is used for measuring the inlet pressure value of the pressure control valve (17).
The air cooler (21) is used for cooling the lubricating oil, and the ventilation effect is guaranteed. The second pressure sensor (20) and the pressure gauge (23) are respectively used for detecting and displaying a pressure value at the oil outlet of the radiator fin, namely the pressure value of the oil distributor (25), so that a worker can conveniently monitor and control the pressure value of the oil distributor (25).
An air guide cover (22) is arranged between the fan (32) and the cabin ventilation opening, and the air guide cover (22) is made of a fireproof, anti-aging and anti-cracking material. The lubricating oil cooled by the air cooler (21) flows through an outlet oil pipe (24) of the air cooler and enters an oil distributor (25) to lubricate each lubricating point of the gear box (26).
The temperature sensor (27) monitors the temperature T of the lubricating oil in the gear box (26) in real time1And the set point T of the temperature of the lubricating oil in the master control system of the wind turbine generator0Comparing, and according to the type of the wind turbine generator and the different types of the parts of the lubricating system, T0The set value of the temperature is different, and is generally less than or equal to T of 10 DEG C0< 15 ℃. When T is1＜T0When the wind turbine generator is not started, namely the gear box (26) and the mechanical pump (4) are not started, the electric heater (29) is started, and meanwhile, the electric pump (3) starts to be started every t1Minute start and continuous operation t2Minute, aiming to make the lubricating oil flow sufficiently and heat uniformly until T1When the temperature reaches 15 ℃, the electric heater (29) stops heating, the electric pump (3) starts to work normally, the unit returns to work normally, and t is above1And t2Satisfies the following conditions: t is less than or equal to 25 minutes1Not more than 35 minutes, not more than 5 minutes and not more than t2Less than or equal to 10 minutes. The temperature and pressure control program in the wind turbine main control system is common knowledge in the art and is not described herein again.
Following according to two kinds of circumstances of low temperature and high temperature, right the utility model discloses wind turbine generator system gear box lubrication and cooling system's working process explains:
(1) low temperature conditions: t is0The temperature of lubricating oil in the gear box is set for the temperature set point of the lubricating oil in the master control system of the wind turbine generator1＜T0During the process, the wind turbine generator is not started to operate, the gear box (26) and the mechanical pump (4) do not work at the moment, the electric heater (29) is started, and meanwhile, the electric pump (3) starts to work intermittently, namely, the lubricating oil is sucked out of the gear box (26) through the electric pump (3) and reaches the precision filter through the electric pump check valve (8)At the inlet of the core (13), the pressure difference before and after the precision filter element (13) is larger than the pressure value of the filter bypass valve (15), the filter bypass valve (15) is opened, the lubricating oil passes through the filter bypass valve (15) and passes through the rough filter element (14), and the pressure at the inlet of the pressure control valve (17) is higher than the set pressure P of the pressure control valve (17) due to the low temperature and high viscosity of the lubricating oil at the time0When the pressure control valve (17) is opened, one part of lubricating oil directly enters the gear box (26) through the pressure control valve (17), and the other part of lubricating oil enters the air cooler (21) through the inlet oil pipe (19) of the air cooler. When the inlet pressure of the lubricating oil entering the air cooler (21) is higher than the set pressure value of the bypass valve (31) of the air cooler, part of the lubricating oil enters the oil distributor (25) through the bypass valve (31) of the air cooler and the outlet oil pipe (24) of the air cooler. When the inlet pressure entering the air cooler (21) is lower than the set pressure value of the bypass valve (31) of the air cooler, all the lubricating oil enters the oil distributor (25) through the radiator fins (30) of the air cooler (21) and the outlet oil pipe (24) of the air cooler, and the internal parts of the gear box (26) are lubricated.
(2) Non-low temperature conditions: t is0The temperature of lubricating oil in the gear box is set for the temperature set point of the lubricating oil in the master control system of the wind turbine generator1When the temperature is more than or equal to 15 ℃, the wind turbine generator normally works, the electric pump (3) and the mechanical pump (4) jointly provide lubricating oil for the lubricating system, the lubricating oil output from the electric pump (3) and the mechanical pump (4) respectively enters the precise filter element (13) and the coarse filter element (14) through the electric pump check valve (8) and the mechanical pump check valve (9) in sequence, the viscosity of the lubricating oil is smaller, and therefore the pressure value at the outlet of the coarse filter element (14) is smaller than the set pressure P of the pressure control valve (17)0The pressure control valve (17) is not opened, all lubricating oil enters the air cooler (21) through the air cooler inlet oil pipe (19), and because the inlet pressure entering the air cooler (21) is lower than the set pressure value of the air cooler bypass valve (31), all the lubricating oil enters the oil distributor (25) through the air cooler outlet oil pipe (24) after passing through the radiator fins (30) of the air cooler (21), so that internal parts of the gear box (26) are lubricated.
Compared with the prior art, the utility model discloses wind turbine generator system gear box lubricating cooling system has following advantage at least:
1. the utility model discloses wind turbine generator system gear box lubrication cooling system uses pressure control to replace traditional temperature control, distributes the lubricating oil that gets into the air cooler, as long as the lubricating oil pressure that passes through is not higher than the set pressure of pressure control valve (17), then all lubricating oil will get into air cooler (21) to ensure that as much lubricating oil as possible is effectively cooled; meanwhile, the pressure control valve (17) is high in reliability, and the problems that the temperature control valve is low in reliability and easy to damage, so that the temperature of lubricating oil is too high, and the power of a fan is limited are solved.
2. The utility model discloses wind turbine generator system gear box lubrication and cooling system, pressure control valve (17) of adoption are as lubrication and cooling system's relief valve simultaneously, are located the filter exit, when lubricating oil pressure surpassed the settlement pressure of pressure control valve (17), through the filterable clean lubricating oil of filter via pressure control valve (17) directly get into gear box (26), have effectively avoided traditional lubrication system relief valve to be blockked up by unfiltered lubricating oil pollution, the dead phenomenon of damaging even of card.
3. The utility model discloses wind turbine generator system gear box lubrication cooling system is equipped with parts such as heater (29) and temperature sensor (27), temperature detect switch (28), according to the temperature control lubricating system's of the lubricating oil that temperature sensor (27) detected operation mode, has avoided under the low temperature condition direct start then to cause the condition that the electric pump damaged.
4. The utility model discloses wind turbine generator system gear box lubrication and cooling system adopts mechanical pump (4), the mode of combined fuel feeding of electric pump (3), has effectively guaranteed lubrication and cooling system's flow sufficient, ensures that gear box (26) spare part obtains fully lubricated, guarantees fan motor group's normal operating.
5. The utility model discloses wind turbine generator system gear box lubrication and cooling system, wind scooper (22) of configuration between fan (32) and cabin vent are made by fire-resistant, ageing resistance, the material of difficult fracture, and longe-lived, reliability are high, effectively guarantee the radiating effect of forced air cooler.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the device and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. A wind generating set gear box lubricating and cooling system is characterized by comprising: the device comprises a motor (1), a coupling (2), an electric pump (3), a mechanical pump (4), a gear box output shaft (5), an electric pump oil pumping pipe (6), a mechanical pump oil pumping pipe (7), an electric pump check valve (8), a mechanical pump check valve (9), a precise filter element (13), a coarse filter element (14), a filter bypass valve (15), a pressure control valve (17), an overflow pipe (18), an air cooler inlet oil pipe (19), an air cooler (21), an air cooler outlet oil pipe (24), an oil distributor (25) and a gear box (26);
the electric pump (3) is connected with the motor (1) through the coupling (2), and an oil suction port of the electric pump (3) is connected with the gear box (26) through the electric pump oil pumping pipe (6); the input shaft of the mechanical pump (4) is connected with the output shaft (5) of the gear box, and the oil suction port of the mechanical pump (4) is connected with the gear box (26) through the mechanical pump oil pumping pipe (7); the outlet of the electric pump (3) is connected with the inlet of the electric pump check valve (8); the outlet of the mechanical pump (4) is connected with the inlet of the mechanical pump check valve (9); the outlet of the electric pump check valve (8) is connected with the outlet of the mechanical pump check valve (9); the inlet of the precise filter element (13) is connected with the outlet of the check valve (8) of the electric pump; the filter bypass valve (15) is connected with the precision filter element (13) in parallel; an outlet of the filter bypass valve (15) and an outlet of the precision filter element (13) are converged together and then connected with an inlet of the coarse filter element (14); the outlet of the coarse filter element (14) is connected with the inlet of the pressure control valve (17); the outlet of the pressure control valve (17) is directly connected with the gear box (26) through the overflow pipe (18); the inlet of the pressure control valve (17) is connected to the oil inlet of the radiator fin in the air cooler (21) through the inlet oil pipe (19) of the air cooler, and the oil outlet of the radiator fin in the air cooler (21) is connected with the oil distributor (25) through the outlet oil pipe (24) of the air cooler.
2. The wind turbine generator system gearbox lubrication and cooling system of claim 1, further comprising: an oil drain ball valve (10); the oil drain ball valve is connected with an outlet of the electric pump check valve (8).
3. The wind turbine generator system gearbox lubrication and cooling system of claim 1, further comprising: a first pressure tap (11) and a second pressure tap (33); one end of the first pressure measuring joint (11) is connected with an outlet of the check valve (8) of the electric pump, and the other end of the first pressure measuring joint (11) is connected with the gear box (26); the second pressure tap (33) is connected to the inlet of the pressure control valve (17).
4. The wind turbine generator system gearbox lubrication and cooling system of claim 1, further comprising: a first pressure sensor (12); the first pressure sensor (12) is connected to the outlet of the electric pump check valve (8).
5. The wind turbine generator system gearbox lubrication and cooling system of claim 1, further comprising: a differential pressure transmitter (16); the inlet of the differential pressure signal generator (16) is connected with the inlet of the precision filter element (13), and the outlet of the differential pressure signal generator (16) is connected with the outlet of the coarse filter element (14).
6. Wind turbine generator set gearbox lubricating and cooling system according to claim 1, characterised in that said wind cooler (21) comprises: a radiator fin (30) and a bypass check valve (31); an oil inlet of the radiator fin (30) is connected with the inlet oil pipe (19) of the air cooler, and an oil outlet of the radiator fin (30) is connected with the outlet oil pipe (24) of the air cooler; the bypass check valve (31) is connected in parallel with the radiator fin (30).
7. Wind turbine generator set gearbox lubricating and cooling system according to claim 6, characterised in that the wind cooler (21) further comprises: a wind scooper (22) and a fan (32); the fan (32) is installed on one side of the radiator fin (30); the wind scooper (22) is installed between the fan (32) and the cabin ventilation opening.
8. The wind turbine generator system gearbox lubrication and cooling system of claim 1, further comprising: a second pressure sensor (20) and a pressure gauge (23); the oil outlet of the radiator fin is sequentially connected with the second pressure sensor (20) and the pressure gauge (23).
9. The wind turbine generator system gearbox lubrication and cooling system of claim 1, further comprising: a temperature sensor (27), a temperature control switch (28) and an electric heater (29); the electric heater (29) is immersed in the lubricating oil inside the gearbox (26); the temperature sensor (27) is mounted on the gear box (26) and used for detecting the temperature of lubricating oil in the gear box (26); the electric interface of the temperature sensor (27) is connected with one end of the temperature control switch (28), and the other end of the temperature control switch (28) is connected with the motor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921129027.5U CN210240514U (en) | 2019-07-18 | 2019-07-18 | Wind generating set gear box lubricating and cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921129027.5U CN210240514U (en) | 2019-07-18 | 2019-07-18 | Wind generating set gear box lubricating and cooling system |
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| Publication Number | Publication Date |
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| CN210240514U true CN210240514U (en) | 2020-04-03 |
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| CN201921129027.5U Active CN210240514U (en) | 2019-07-18 | 2019-07-18 | Wind generating set gear box lubricating and cooling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700837A (en) * | 2020-05-22 | 2021-11-26 | 上海圣克赛斯液压股份有限公司 | Power device and wind generating set |
| CN116877677A (en) * | 2023-07-24 | 2023-10-13 | 三峡新能源海上风电运维江苏有限公司 | Gear box lubrication cooling system |
-
2019
- 2019-07-18 CN CN201921129027.5U patent/CN210240514U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700837A (en) * | 2020-05-22 | 2021-11-26 | 上海圣克赛斯液压股份有限公司 | Power device and wind generating set |
| CN116877677A (en) * | 2023-07-24 | 2023-10-13 | 三峡新能源海上风电运维江苏有限公司 | Gear box lubrication cooling system |
| CN116877677B (en) * | 2023-07-24 | 2024-05-28 | 三峡新能源海上风电运维江苏有限公司 | Gear box lubrication cooling system |
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