Adjustable anti-wave oil level gauge suitable for bearing oil groove of water-turbine generator set

Abstract

An adjustable anti-wave oil level gauge suitable for a bearing oil groove of a water-turbine generator set comprises an upper pipe body and a lower pipe body, a turning plate box is arranged on the side wall of the upper pipe body, and a magnetic turning plate is arranged in the turning plate box; a floater is arranged in the lower pipe body, the upper end of the floater is connected with a magnetic sliding block through a connecting rod, and the magnetic sliding block is matched with a magnetic turning plate; a connecting pipe communicated with the upper pipe body is arranged at the upper end of the upper pipe body, an air guide hole is formed in the side wall of the connecting pipe, and the upper end of the connecting pipe is open and is in threaded connection with the adjusting rod. The technical problem to be solved by the utility model is to provide an adjustable anti-wave oil level gauge suitable for a bearing oil groove of a water-turbine generator set, so as to prevent false alarm caused by oil agitation of a turning plate oil level gauge.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level meter technical field, especially a adjustable waveproof oil level meter suitable for water turbine generator unit bearing oil groove. BACKGROUND

[0002] When the liquid level measured by the flap oil level meter fluctuates, a certain amount of air and liquid will flow into or out of the oil level meter through the air guide hole at the top and the liquid guide hole at the bottom respectively. If the inflow or outflow process is particularly fast, it will cause the oil level meter reading to change particularly sharply. For example, when the water turbine generator unit is running, the rotating parts in the bearing oil groove will agitate the oil, causing the oil level meter reading to fluctuate, which may trigger false alarms. The size of the instantaneous flow rate can be used to describe the speed of the inflow or outflow process. According to the flow rate Q=SV, the instantaneous flow rate V can be considered constant. If the cross-sectional area S is larger, the instantaneous flow rate Q will be larger, the instantaneous change of the oil level reading will be larger, and the reading fluctuation will be more severe. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a adjustable waveproof oil level meter suitable for water turbine generator unit bearing oil groove, which prevents false alarms caused by oil agitation of the flap oil level meter.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a adjustable waveproof oil level meter suitable for water turbine generator unit bearing oil groove, comprising an upper pipe body and a lower pipe body, a flap box is arranged on the side wall of the upper pipe body, and a magnetic flap is arranged in the flap box; a float is arranged in the lower pipe body, the upper end of the float is connected with a magnetic sliding block through a connecting rod, and the magnetic sliding block is matched with the magnetic flap; a connecting pipe is arranged on the upper end of the upper pipe body and communicates with the upper pipe body, an air guide hole is arranged on the side wall of the connecting pipe, and the upper end of the connecting pipe is open and is screwed with an adjusting rod.

[0005] Preferably, the adjusting rod is fixedly connected with a hand wheel.

[0006] Preferably, the lower end of the lower pipe body is provided with a liquid guide hole.

[0007] Preferably, the upper pipe body and the lower pipe body are connected by flanges.

[0008] Preferably, the lower pipe body is located in the oil groove, and the upper pipe body is located outside the oil groove.

[0009] Preferably, the surface of the adjusting rod is provided with external threads, and the inner side surface of the air guide hole is provided with internal threads engaged with the external threads.

[0010] Preferably, the surface of the flap box is provided with scale lines.

[0011] The utility model provides a adjustable waveproof oil level meter suitable for water turbine generator unit bearing oil tank has the following beneficial effects:

[0012] 1. effectively prevent false alarm: for the problem that the bearing oil tank in the water turbine generator set operation rotating part agitates oil liquid causes the flap oil level meter reading fluctuation and possibly causes false alarm, through the threaded connection design of adjusting rod and air guide hole, can adjust the opening degree of air guide hole according to actual conditions, thereby control the instantaneous flow of oil and air in and out of the oil level meter, effectively prevent false alarm caused by oil agitation.

[0013] 2. adjusting function flexible and various: operating adjusting rod can realize different degrees of anti-wave effect. If strong anti-wave is needed, the opening degree of air guide hole can be appropriately reduced, the instantaneous flow is reduced, and the liquid level fluctuation is reduced. If slight anti-wave is needed, the opening degree of air guide hole can be increased, and different working condition requirements are flexibly met.

[0014] 3. the structure is reasonable: the upper pipe body and the lower pipe body adopt flange connection, convenient installation and maintenance, and the layout that the lower pipe body is located in the oil tank and the upper pipe body is located outside the oil tank, which is convenient for the work of the float and other components in the oil tank, and makes the upper pipe body with scale line and adjusting device convenient for operation and observation. The cooperation structure of the liquid guide hole at the lower end of the lower pipe body and the magnetic flap in the flap box of the side wall of the upper pipe body and the float and the magnetic sliding block of the lower pipe body ensures that the oil level meter can accurately measure the oil level. The turning of the magnetic flap can directly show the change of the oil level, and the liquid guide hole is helpful to the normal flow and balance of the oil in the oil level meter. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described below in combination with the drawings and examples:

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is Figure 1 The enlarged view of A in the middle;

[0018] Figure 3 It is the sectional view of the utility model. PREFERRED EMBODIMENT

[0019] As Figures 1-3 shown, a adjustable waveproof oil level meter suitable for water turbine generator unit bearing oil tank, including upper pipe body 1 and lower pipe body 2, is provided with flap box 3 on the side wall of upper pipe body 1, and magnetic flap is arranged in the flap box;Float 4 is arranged in lower pipe body 2, the upper end of float 4 is connected with magnetic sliding block 6 through connecting rod 5, and magnetic sliding block 6 is matched with magnetic flap;Connecting pipe 7 in communication with upper pipe body 1 is arranged at the upper end of upper pipe body 1, air guide hole 8 is arranged on the side wall of connecting pipe 7, the upper end of connecting pipe 7 is open, and is connected with adjusting rod 9 in screw thread.

[0020] Preferably, the adjusting rod 9 is fixedly connected with the hand wheel 10.

[0021] Preferably, the lower end of the lower pipe body 2 is provided with a liquid guiding hole 11.

[0022] Preferably, the upper pipe body 1 and the lower pipe body 2 are connected by flanges.

[0023] Preferably, the lower pipe body 2 is located in the oil tank, and the upper pipe body 1 is located outside the oil tank.

[0024] Preferably, the surface of the adjusting rod 9 is provided with external threads, and the inner side of the air guiding hole 8 is provided with internal threads engaged with the external threads.

[0025] Preferably, the surface of the turning plate box 3 is provided with scale lines.

[0026] The device is divided into upper and lower parts by a flange plate; after installation, the lower part is in the oil tank; the lower part has a liquid guiding hole 11; the lower part has a float 4 inside, which floats on the surface of the oil and is connected with a magnetic sliding block 6 through a connecting rod 5, and the magnetic sliding block 6 moves in the upper part of the oil level meter; after installation, the upper part is outside the oil tank; the upper part is marked with scale lines, and the scale lines correspond to the magnetic turning plates; when the magnetic sliding block 6 is located at a certain scale position, the corresponding magnetic turning plate will be turned over under the action of the magnetic sliding block; the upper part has an air guiding hole 8 that can communicate the space inside and outside the oil level meter, and has an adjusting rod 9 for adjusting the opening degree of the air guiding hole.

[0027] During use, the opening degree of the air guiding hole 8 can be controlled by operating the adjusting rod 9 according to actual needs, so as to adjust the effect of the wave prevention function. If a stronger wave prevention function is needed, the opening degree of the air guiding hole 8 can be appropriately reduced by operating the adjusting rod 9, that is, the cross-sectional area S is reduced; at this time, the liquid instantaneous flow rate V can be considered as unchanged, and according to the instantaneous flow rate Q=SV, the instantaneous flow rate Q is also reduced, the liquid surface fluctuation is reduced, and a strong wave prevention effect is achieved. Similarly, if a lighter wave prevention function is needed, the opening degree of the air guiding hole 3 can be appropriately increased by operating the adjusting rod 9, so as to weaken the effect of the wave prevention function.

[0028] The above embodiment is only a preferred technical solution of the present application, and should not be regarded as a limitation of the present application; the protection scope of the present application should be the technical solution recited in the claims, including equivalent replacement solutions of the technical features recited in the claims. That is, equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. An adjustable oil level gauge for a bearing sump of a hydroelectric generating unit, characterized by: The utility model relates to a kind of oil level gauges, including upper tube body (1) and lower tube body (2), is equipped with flap box (3) on the side wall of upper tube body (1), magnetic flap is equipped in flap box;Float (4) is equipped in lower tube body (2), the upper end of float (4) is connected with magnetic slider (6) by connecting rod (5), magnetic slider (6) is matched with magnetic flap;Upper end of upper tube body (1) is equipped with the connecting pipe (7) being communicated with upper tube body (1), gas guide hole (8) is equipped on the side wall of connecting pipe (7), the upper end of connecting pipe (7) is open, and is connected with adjusting rod (9) screw.

2. The adjustable oil level gauge for the bearing oil tank of a hydroelectric generator set according to claim 1, characterized in that: The adjusting rod (9) is fixedly connected with a hand wheel (10).

3. The adjustable oil level gauge for the bearing oil tank of a hydroelectric generator set according to claim 1, characterized in that: The lower end of the lower tube body (2) is provided with a liquid guide hole (11).

4. The adjustable oil level gauge for the bearing oil slot of the hydroelectric generator set according to claim 1, characterized in that: The upper tube body (1) and the lower tube body (2) are connected by flanges.

5. The adjustable oil level gauge for the bearing oil groove of a hydroelectric generator set according to claim 4, characterized in that: The lower tube body (2) is located in an oil tank, and the upper tube body (1) is located outside the oil tank.

6. The adjustable oil level gauge for the bearing oil slot of the hydroelectric generator set according to claim 1, characterized in that: The adjusting rod (9) is provided with external threads on the surface, and the inner side of the gas guide hole (8) is provided with internal threads engaged with the external threads.

7. The adjustable oil level gauge for the bearing oil slot of the hydroelectric generator set according to claim 1, characterized in that: The flap box (3) is provided with scale lines on the surface.

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