A venting device

Abstract

The utility model relates to a related technical field of generator especially, and it is a kind of ventilation device, including ventilation subassembly: the ventilation subassembly includes;Sealing cover bottom is provided with baffling ventilation ring and in the baffling ventilation ring bolt connection;Ventilation pipe cover is located in the inside of baffling ventilation ring;Energy dissipation base is set up in the bottom of ventilation pipe;When generator operates, oil gas mist mixture generated in oil groove first enters ventilation device through the pipe of bottom, first reaches energy dissipation base, and after oil gas mist passes through energy dissipation hole, its pressure is released and reduced first time, and under the action of first group filter plate in base cavity, the kinetic energy of oil gas mist overflowed is further weakened, after reaching energy dissipation hole plate in the bottom of ventilation pipe, continue to be weakened, after entering ventilation pipe, the kinetic energy of oil gas mist overflowed is continued to weaken by the action of 7 layers of baffle, and the oil condensed in process can drop back oil groove cover, and a small amount of oil gas mist enters the baffling ventilation ring of top.

Description

Technical Field

[0001] This utility model relates to the field of generator-related technology, and in particular to a ventilation device. Background Technology

[0002] A hydroelectric generator is a generator that converts water energy into electrical energy using a hydroelectric turbine as its prime mover. When water flows through the turbine, it converts water energy into mechanical energy. The turbine's shaft then drives the generator's rotor, converting the mechanical energy into electrical energy for output. It is the main power equipment for producing electricity in a hydroelectric power station. The hydroelectric generator is driven by a hydroelectric turbine. Its rotor is short and thick, resulting in shorter start-up and grid connection times, and flexible operation and scheduling. Besides general power generation, it is particularly suitable as a peak-shaving unit and an emergency backup unit. The maximum capacity of hydroelectric generator sets has reached 800,000 kilowatts. The speed of the hydroelectric generator determines the frequency of the generated alternating current (AC). To ensure the stability of this frequency, the rotor speed must be stabilized. To stabilize the speed, a closed-loop control method can be used to control the speed of the prime mover (hydroelectric turbine). This involves sampling the frequency signal of the generated AC and feeding it back to the control system that controls the opening and closing angle of the turbine's guide vanes to control the turbine's output power. Through the feedback control principle, the generator speed can be stabilized. Diesel generators are driven by internal combustion engines. It starts quickly and is easy to operate, but its power generation cost is high. It is mainly used as an emergency backup power source, or in areas not covered by the main power grid and as a mobile power station. Capacities are mostly between several kilowatts and several gigawatts. The torque output from the diesel engine shaft exhibits periodic pulsations, requiring precautions to prevent resonance and shaft breakage.

[0003] This venting device is installed on the generator oil tank cover. Its function is to connect the oil tank with the atmospheric static pressure of the plant, reducing the pressure difference between the inside and outside of the oil tank. This effectively improves the sealing effect of the oil baffle pipe and the sealing cover, reducing or eliminating oil leakage and oil mist overflow. The venting device itself needs to provide ventilation while preventing oil mist from overflowing from the vent. Ideally, there should be no oil mist overflow while maintaining good ventilation. The condensed oil inside returns to the generator oil tank.

[0004] The existing ventilation device is not easy to disassemble during use. After the unit has been running for a long time, the filter screen inside the device will accumulate lubricating oil, which will reduce the ventilation and filtration effect. This will make it more inconvenient to clean and replace the inside of the ventilation device later, thus affecting the service life of the device. Utility Model Content

[0005] The purpose of this invention is to provide a ventilation device to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] A ventilation device includes a ventilation assembly: the ventilation assembly includes; a sealing cap with a deflector ventilation ring at its bottom and bolted to the deflector ventilation ring; a ventilation pipe sleeved inside the deflector ventilation ring; an energy-dissipating base disposed at the bottom of the ventilation pipe; a nut disposed on the outside of the energy-dissipating base and threadedly connected to the energy-dissipating base; an oil tank cover disposed on the outside of the energy-dissipating base; a rod disposed at the top of the sealing cap with one end passing through the ventilation pipe; baffles symmetrically disposed on the outside of the rod; a filter plate one disposed on the outside of the rod; and a filter plate two disposed on the outside of the rod.

[0008] Optionally, the vent pipe is provided with an auxiliary component, which includes: two nuts symmetrically sleeved on the outside of the rod body and threadedly connected to the rod body.

[0009] Optionally, the auxiliary component further includes: a nut three-piece set on the outside of the rod body and threadedly connected to the rod body.

[0010] Optionally, the auxiliary components further include: docking grooves symmetrically formed on the first filter plate; and docking blocks symmetrically arranged on the second filter plate.

[0011] Optionally, the auxiliary component further includes a spring disposed on the docking block.

[0012] Optionally, the auxiliary component further includes a groove formed on the mating block.

[0013] Optionally, the auxiliary components further include: slots respectively opened on the inner sides of the first filter plate and the second filter plate; and insert rods symmetrically arranged on the outer side of the rod body.

[0014] Optionally, the insertion rod is a lead screw.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When the generator is running, the oil mist mixture generated in the oil tank first enters the ventilation device through the bottom pipe. It first reaches the energy dissipation base, where its pressure is initially released and reduced after passing through the energy dissipation holes. Under the action of the first set of filter plates in the base cavity, the kinetic energy of the overflowing oil mist is further weakened. Upon reaching the energy dissipation plate at the bottom of the ventilation pipe, it is further weakened. After entering the ventilation pipe, the oil mist passes through seven layers of baffles, further reducing its kinetic energy. During this process, the condensed oil drips back to the oil tank cover, and finally, under the action of the bottom filter plate... A small amount of oil mist enters the top deflector ventilation ring, which has three layers with staggered vents. The vents of the inner two rings and the innermost ring have oil return holes, allowing the only trace amounts of condensed oil droplets to return to the oil tank cover through the oil return holes. This ensures the ventilation effect of the oil tank cover while preventing oil mist from overflowing from the ventilation device. Since the sealing cover is bolted to the deflector ventilation ring and the ventilation pipe is bolted to the energy dissipation base, the entire ventilation pipe can be disassembled for cleaning or maintenance, making it more convenient to use and increasing the service life of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this application;

[0019] Figure 2 This is a schematic diagram of the internal structure of this application;

[0020] Figure 3 This is a structural schematic diagram of the side of the rod in this application;

[0021] Figure 4 This is a top view of the internal structure of the filter plate in this application.

[0022] Figure label:

[0023] 1. Ventilation assembly; 11. Sealing cover; 12. Baffle vent ring; 13. Ventilation pipe; 131. Energy dissipation orifice plate; 14. Energy dissipation base; 15. Nut one; 16. Oil tank cover; 17. Rod body; 171. Baffle plate; 18. Filter plate one; 19. Filter plate two;

[0024] 2. Auxiliary components; 21. Nut II; 22. Nut III; 23. Connecting groove; 24. Connecting block; 25. Spring; 26. Groove; 27. Slot; 28. Insert rod. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Given that existing ventilation devices are not easy to disassemble during use, and that lubricating oil accumulates on the filters after prolonged operation, resulting in poor ventilation and filtration, subsequent cleaning and replacement of the ventilation devices is inconvenient and affects their service life.

[0027] like Figure 1-4 As shown, this utility model embodiment provides a ventilation device, including a ventilation component 1: the ventilation component 1 includes: a sealing cover 11 with a deflecting ventilation ring 12 at its bottom and bolted to the deflecting ventilation ring 12; a ventilation pipe 13 sleeved on the inner side of the deflecting ventilation ring 12; an energy dissipation base 14 disposed at the bottom of the ventilation pipe 13; a nut 15 disposed on the outer side of the energy dissipation base 14 and threadedly connected to the energy dissipation base 14; an oil tank cover 16 disposed on the outer side of the energy dissipation base 14; a rod 17 disposed at the top of the sealing cover 11, with one end passing through the ventilation pipe 13; baffles 171 symmetrically disposed on the outer side of the rod 17; a filter plate 18 disposed on the outer side of the rod 17; and a filter plate 19 disposed on the outer side of the rod 17.

[0028] When the generator is running, the oil mist mixture generated in the oil tank first enters the ventilation device through the bottom pipe. It first reaches the energy dissipation base 14, where its pressure is initially released and reduced after passing through the energy dissipation holes. Under the action of the first set of filter plates in the base cavity, the kinetic energy of the overflowing oil mist is further weakened. After reaching the energy dissipation plate 131 at the bottom of the ventilation pipe, it is further weakened. After entering the ventilation pipe 13, the oil mist passes through the seven layers of baffles 171, further reducing its kinetic energy. During this process, the condensed oil drips back to the oil tank cover 16. Finally, under the action of the bottom filter plate, a small amount of oil mist enters the top baffle ventilation ring 12. The ventilation ring has three layers with staggered vents. The vents of the inner two layers and the innermost ring have oil return holes, allowing any trace amounts of condensed oil droplets to return to the oil tank cover 16. This ensures the ventilation effect of the oil tank cover 16 while preventing oil mist from overflowing from the ventilation device. Since the sealing cover 11 is bolted to the ventilation ring 12 and the ventilation pipe 13 is bolted to the energy dissipation base 14, the entire ventilation pipe 13 can be disassembled for cleaning or maintenance. This device is modular, and the entire ventilation device can be disassembled into three parts for easy subsequent inspection and maintenance, making it more convenient to use and increasing the service life of the device.

[0029] Furthermore, an auxiliary component 2 is provided on the vent pipe 13. The auxiliary component 2 includes: a second nut 21 symmetrically sleeved on the outside of the rod body 17 and threadedly connected to the rod body 17.

[0030] Multiple sets of nuts 21 are symmetrically arranged on the outer side wall of the rod 17. This allows the baffle plate 171 to be fixed by pressing the two sets of nuts 21 together. During subsequent disassembly, the nuts 21 can be removed to replace the baffle plate 171.

[0031] Furthermore, the auxiliary component 2 also includes a nut 22 sleeved on the outside of the rod 17 and threadedly connected to the rod 17.

[0032] Nuts 22 are provided on the outer walls of both ends of the rod 17. The two sets of nuts 22 can be removed from the rod 17 by screwing. The rod 17 has no limiting mechanism, so it can be removed and replaced.

[0033] Furthermore, the auxiliary component 2 also includes: docking grooves 23 symmetrically formed on the first filter plate 18; and docking blocks 24 symmetrically arranged on the second filter plate 19.

[0034] A docking block 24 is symmetrically arranged on one side of filter plate 2 19, and a docking groove 23 is symmetrically opened on one side of filter plate 1 18. In this way, when installing the two sets of filter plates later, the docking block 24 and the docking groove 23 can be assembled, which can increase the structural stability between the two sets of filter plates and avoid using bolts to fix the two sets of filter plates, so as to facilitate the subsequent disassembly and assembly of the filter plates.

[0035] Furthermore, the auxiliary component 2 also includes a spring 25 disposed on the docking block 24.

[0036] A spring 25 is provided on one side of the docking block 24. This can increase the friction between the filter plate and the air pipe 13 by pressing the docking block 24 against the spring 25, thereby increasing the structural stability between the two sets of filter plates. At the same time, the docking block 24 can be popped out by the spring 25 during subsequent disassembly, so that the two sets of filter plates can be disassembled.

[0037] Furthermore, the auxiliary component 2 also includes a groove 26 formed on the docking block 24.

[0038] A groove 26 is made on one side of the mating block 24, so that the spring 25 can be installed inside the groove 26 and limited by the groove 26, which increases the structural stability of the spring 25.

[0039] Furthermore, the auxiliary component 2 also includes: slots 27 respectively opened on the inner side of the first filter plate 18 and the second filter plate 19; and insert rods 28 symmetrically arranged on the outer side of the rod body 17.

[0040] Slots 27 are made on the inner side of filter plate 18 and filter plate 19. When installing the two sets of filter plates 18 later, the slots 27 can be connected with the rod insertion rod 28, which can limit the position of the two sets of filter plates and increase the structural stability of the two sets of filter plates.

[0041] Furthermore, the insertion rod 28 is a lead screw.

[0042] The insertion rod 28 is set as a lead screw and threaded to the rod body 17. This way, if the insertion rod 28 is damaged or deformed in the future, it can be removed and replaced by screwing, so as not to affect the installation of the filter plate.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ventilation device, characterized in that Includes a ventilation assembly (1): The ventilation assembly (1) includes a sealing cover (11), a deflecting ventilation ring (12) provided at the bottom, and bolted to the deflecting ventilation ring (12); Ventilation pipe (13) is fitted inside the deflector ventilation ring (12); An energy-dissipating base (14) is disposed at the bottom of the vent pipe (13); Nut 1 (15) is provided on the outside of the energy dissipation base (14) and is threaded to the energy dissipation base (14); An oil tank cover (16) is disposed on the outside of the energy dissipation base (14); A rod (17) is disposed on the top of the sealing cover (11), with one end passing through the vent pipe (13); Baffles (171) are symmetrically arranged on the outside of the rod (17); Filter plate 1 (18) is disposed on the outside of the rod body (17); Filter plate 2 (19) is disposed on the outside of the rod (17).

2. A vent according to claim 1, wherein An auxiliary component (2) is provided on the ventilation pipe (13), the auxiliary component (2) including: Nut 2 (21) is symmetrically sleeved on the outside of the rod (17) and threadedly connected to the rod (17).

3. A vent according to claim 2, wherein The auxiliary component (2) also includes; Nut 3 (22) is sleeved on the outside of the rod (17) and threadedly connected to the rod (17).

4. A vent according to claim 3, wherein The auxiliary component (2) also includes; The docking groove (23) is symmetrically opened on the filter plate (18); The docking block (24) is symmetrically arranged on the filter plate (19).

5. A vent according to claim 4, wherein The auxiliary component (2) also includes; A spring (25) is disposed on the docking block (24).

6. A vent according to claim 5, wherein The auxiliary component (2) also includes; A groove (26) is formed on the mating block (24).

7. A vent according to claim 6, wherein The auxiliary component (2) also includes; Slots (27) are respectively opened on the inner side of filter plate one (18) and filter plate two (19); Insert rods (28) are symmetrically arranged on the outside of the rod body (17).

8. A venting device according to claim 7, wherein The insertion rod (28) is a lead screw.

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