An exhaust observation device for a water guide oil pan

Abstract

The application provides an exhaust observation device for a water guide oil pan, and relates to the technical field of hydropower station unit accessories; the device comprises a fixing block, a transparent support part, a ventilation oil discharge pipe, a first check valve and a second check valve; the transparent support part is conical and connected with the top of the fixing block; in the ventilation oil discharge pipe, the bottom of the vertical pipe is communicated with the top of the transparent support part, one end of the arc-shaped backflow pipe is communicated with the top of the vertical pipe, the other end is communicated with one side of the bottom of the vertical pipe, and the exhaust pipe is communicated with one side of the top of the arc-shaped backflow pipe; the first check valve is arranged in the arc-shaped backflow pipe, and the second check valve is arranged in the top of the exhaust pipe; the transparent support part is conical, the situation that the observation hole cannot be observed due to oil hanging is avoided, the ventilation oil discharge pipe is added, the pressure in the oil pan can be stabilized, the condensed lubricating oil in the oil-gas mixture can be collected back, and the stable use of the bearing assembly part of the unit during operation is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of hydropower station unit accessories, specifically to an exhaust observation device for a water guide oil pan. Background Technology

[0002] The water guide oil basin of the hydropower station unit mainly stores water guide lubricating oil. The lubricating oil completely encapsulates the water guide bearing and fills the space between the bearing and the water guide bearing, thus providing lubrication and preventing wear on the bearing or bearing shell. Therefore, an observation hole is provided on the water guide oil basin to check the appearance of the lubricating oil inside. Currently, the observation hole is sealed by a transparent resin plate combined with a circular steel sheet, forming a transparent round cover. The transparent resin plate is tightly connected to the top cover of the water guide oil basin, which is now in a completely sealed state.

[0003] When the hydropower station unit is running, the oil pan and the main shaft rotate synchronously. The high-speed rotation of the oil pan drives the internal lubricating oil, causing the lubricating oil to tumble and splash, blurring the resin transparent plate and making it impossible to see the internal situation. In addition, because the unit rotates, the bearing temperature rises, and the oil temperature rises synchronously. After expansion, the internal pressure is greater than the external pressure. In order to solve the above problems, the observation hole was modified. Utility Model Content

[0004] The purpose of this utility model is to provide an exhaust observation device for a water-guided oil basin, which solves the technical problems of existing technology where the observation hole is sealed with a transparent plate combined with a circular steel sheet, forming a transparent round cover shape, oil stains easily blur the resin transparent plate, affecting observation, and pressure cannot be released.

[0005] Based on the above objectives, this application provides an exhaust observation device for a water-guided oil pan, comprising a fixing block, a transparent support, an exhaust pipe, a first check valve, and a second check valve.

[0006] The fixing block is ring-shaped and is used to fix it to the observation hole of the water-oil guide basin;

[0007] The transparent support is conical, and its bottom is connected to the top of the fixing block;

[0008] The ventilation and oil drain pipe includes a vertical pipe, an arc-shaped return pipe, and an exhaust pipe;

[0009] The bottom of the vertical tube is connected to the top of the transparent support, one end of the arc-shaped return tube is connected to the top of the vertical tube, and the other end is connected to the bottom side of the vertical tube. The exhaust pipe is connected to the top side of the arc-shaped return tube.

[0010] The first check valve is located at the other end of the arc-shaped return pipe, which is connected to the bottom side of the vertical pipe, so that the oil in the arc-shaped return pipe can flow back to the vertical pipe in one direction through the first check valve.

[0011] The second check valve is located at the top of the exhaust pipe, allowing the gas in the exhaust pipe to be discharged to the outside in one direction through the second check valve.

[0012] Furthermore, the transparent support includes multiple support purlins and a transparent plate;

[0013] Multiple support purlins are evenly distributed along the circumference of the fixing block, and the multiple support purlins are connected between the fixing block and the bottom of the vertical pipe;

[0014] The transparent plates are installed between each supporting purlin and between the supporting purlin and the fixing block.

[0015] Furthermore, the angle α between the supporting purlin and the top surface of the fixing block is 120°-140°.

[0016] Furthermore, the transparent plate is made of resin.

[0017] Furthermore, the fixing block is provided with mounting holes for inserting bolts.

[0018] Furthermore, the vertical pipe, the arc-shaped return pipe, and the exhaust pipe are an integrated structure.

[0019] Furthermore, a counterweight is connected to the side of the vertical tube, and the counterweight is located on the opposite side of the arc-shaped return tube.

[0020] Furthermore, an insect screen is installed inside the exhaust pipe, and the insect screen is located above the second check valve.

[0021] By adopting the above technical solution, the exhaust observation device for water-guided oil pan provided in this application has the following technical advantages compared with the prior art:

[0022] The fixing block is ring-shaped and fixed at the observation hole of the water-guided oil basin; the transparent support part is conical, and its bottom is connected to the top of the fixing block; in the venting and draining pipe, the bottom of the vertical pipe is connected to the top of the transparent support part, one end of the arc-shaped return pipe is connected to the top of the vertical pipe, and the other end is connected to the bottom side of the vertical pipe; the exhaust pipe is connected to the top side of the arc-shaped return pipe; the first check valve is set at the other end of the arc-shaped return pipe connected to the bottom side of the vertical pipe, so that the oil in the arc-shaped return pipe can pass through the first check valve in one direction. The valve returns the gas to the vertical pipe; the second check valve is located at the top of the exhaust pipe, allowing the gas in the exhaust pipe to be discharged to the outside in one direction through the second check valve; the transparent support part of this design is conical, no longer using a flat plate, thus avoiding the problem of oil sludge causing the observation hole to become blurred. Through the exhaust pipe combined with the second check valve, the gas is discharged from the top exhaust valve, which plays a role in pressure relief. Through the arc-shaped return pipe combined with the first check valve, the oil and water condense and flow back to the oil basin from the arc-shaped return pipe and the first check valve, achieving the effect of recovering the evaporated lubricating oil. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the assembly structure of the exhaust observation device for the water-guided oil pan and the water-guided oil pan provided in the embodiments of this application;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a top view of the exhaust observation device for the water-guided oil pan provided in the embodiments of this application;

[0027] Figure 4 This is a schematic diagram of the working state of the exhaust observation device for the water-guided oil pan provided in the embodiments of this application.

[0028] 1-Fixing block; 2-Transparent support part; 21-Support purlin; 22-Transparent plate; 3-Ventilation and oil drain pipe; 31-Vertical pipe; 32-Arc-shaped return pipe; 33-Exhaust pipe; 4-First check valve; 5-Second check valve; 6-Counterweight block; 7-Insect net; 8-Water guide oil basin; 9-Observation hole. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The existing technology mainly involves making an opening at the top of the oil pan device, using a metal sealing steel ring to fix an epoxy resin transparent plate to the top of the oil pan, and observing the oil quality inside the oil pan through the transparent plate.

[0033] When the power plant unit is running, the shaft drives the oil pan to rotate. The high-speed rotation of the oil pan causes the lubricating oil inside to churn. The rolling and splashing oil droplets will stick to the observation hole, rendering the observation hole useless for observation. In addition, when the unit is running, the high-speed rotating bearing will rub against the bearing shell. The lubricating oil carries away the heat from the bearing shell. Although there is a cooling device, the temperature inside the oil pan will still rise. After the temperature rises, the oil-gas mixture will cause the pressure inside the oil pan to increase, which may cause unforeseen shutdown factors.

[0034] Based on this, such as Figures 1-4 As shown, this application provides an exhaust observation device for a water-guided oil pan, including a fixing block 1, a transparent support 2, a venting and oil draining pipe 3, a first check valve 4, and a second check valve 5.

[0035] Among them, the fixing block 1 is ring-shaped and is used to fix it at the observation hole 9 of the water-oil guiding basin 8; the transparent support part 2 is conical, and its bottom is connected to the top of the fixing block 1, so that the staff can directly observe the oil quality in the water-oil guiding basin through the transparent support part 2.

[0036] The vent pipe 3 includes a vertical pipe 31, an arc-shaped return pipe 32, and an exhaust pipe 33;

[0037] Among them, the bottom of the vertical pipe 31 is connected to the top of the transparent support part 2, one end of the arc-shaped return pipe 32 is connected to the top of the vertical pipe 31, and the other end is connected to the bottom side of the vertical pipe 31, and the exhaust pipe 33 is connected to the top side of the arc-shaped return pipe 32.

[0038] The first check valve 4 is located at the other end of the arc-shaped return pipe 32, which is connected to the bottom side of the vertical pipe 31, so that the oil in the arc-shaped return pipe 32 can flow back to the vertical pipe 31 in one direction through the first check valve 4.

[0039] The second check valve 5 is located at the top of the exhaust pipe 33, allowing the gas in the exhaust pipe 33 to be discharged to the outside in one direction through the second check valve 5. The oil is cooled in the exhaust pipe 33 and then flows back to the vertical pipe 31 through the arc-shaped return pipe 32, and then flows back to the oil pan through the vertical pipe 31.

[0040] In practical applications, refer to Figure 2 and Figure 3 The transparent support part 2 is conical, no longer using a flat plate, so that the observation hole will not be blurred due to oil sludge. Through the exhaust pipe 33 and the second check valve 5, the evaporated oil-gas mixture enters the exhaust pipe 33 through the vertical pipe 31 and the upper part of the arc-shaped return pipe 32, and then is discharged through the second check valve 5. After the oil and water condense, they flow back to the oil basin from the arc-shaped return pipe 32 and the first check valve 4, which realizes the effect of recovering the evaporated lubricating oil, and at the same time effectively alleviates the problem of gas expansion in the oil tank caused by the lubricating oil heating up.

[0041] In this embodiment, the transparent support part 2 includes a plurality of support purlins 21 and a transparent plate 22;

[0042] Multiple support purlins 21 are evenly distributed along the circumference of the fixing block 1, and the multiple support purlins 21 are connected between the bottom of the fixing block 1 and the vertical tube 31; transparent plates 22 are provided between each support purlin 21 and between the support purlin 21 and the fixing block 1.

[0043] Preferably, the angle α between the supporting purlin 21 and the top surface of the fixing block 1 is 120°-140°.

[0044] Preferably, the transparent plate 22 is made of resin.

[0045] In this embodiment, the fixing block 1 is provided with mounting holes for bolts to pass through, so as to realize the assembly of the fixing block 1 with the observation hole at the top of the water guide oil basin.

[0046] Preferably, the vertical pipe 31, the arc-shaped return pipe 32, and the exhaust pipe 33 are an integral structure.

[0047] In this embodiment, a counterweight 6 is connected to the side of the vertical tube 31. The counterweight 6 is located on the opposite side of the arc-shaped return tube 32. The counterweight 6 is used to balance the weight on both sides of the vertical tube 31 and balance the center of gravity of the structure.

[0048] In this embodiment, an insect-proof net 7 is installed inside the exhaust pipe 33. The insect-proof net 7 is located above the second check valve 5. The insect-proof net 7 can prevent mosquitoes and other insects from entering the oil pan.

[0049] The exhaust observation device for the water-guided oil pan provided in this embodiment has at least the following advantages:

[0050] 1. The planar observation structure has been eliminated. By adopting a cone-shaped transparent support, the situation where oil gets stuck in the observation hole and makes it impossible to observe is avoided.

[0051] 2. A venting and oil drain pipe has been added, which not only ensures stable pressure in the oil pan, but also allows for the return and collection of condensed lubricating oil in the oil-gas mixture, thereby ensuring the stable use of the bearing assembly parts during unit operation.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A venting and observation device for a water-cooled oil pan, characterized in that, Includes a fixed block, a transparent support, a venting and draining pipe, a first check valve, and a second check valve; The fixing block is ring-shaped and is used to fix it to the observation hole of the water-oil guide basin; The transparent support is conical, and its bottom is connected to the top of the fixing block; The ventilation and oil drain pipe includes a vertical pipe, an arc-shaped return pipe, and an exhaust pipe; The bottom of the vertical tube is connected to the top of the transparent support, one end of the arc-shaped return tube is connected to the top of the vertical tube, and the other end is connected to the bottom side of the vertical tube. The exhaust pipe is connected to the top side of the arc-shaped return tube. The first check valve is located at the other end of the arc-shaped return pipe, which is connected to the bottom side of the vertical pipe, so that the oil in the arc-shaped return pipe can flow back to the vertical pipe in one direction through the first check valve. The second check valve is located at the top of the exhaust pipe, allowing the gas in the exhaust pipe to be discharged to the outside in one direction through the second check valve.

2. The exhaust observation device for a water-guided oil pan according to claim 1, characterized in that, The transparent support includes multiple support purlins and a transparent plate; Multiple support purlins are evenly distributed along the circumference of the fixing block, and the multiple support purlins are connected between the fixing block and the bottom of the vertical pipe; The transparent plates are installed between each supporting purlin and between the supporting purlin and the fixing block.

3. The exhaust observation device for a water-guided oil pan according to claim 2, characterized in that, The angle α between the top surface of the supporting purlin and the fixing block is 120°-140°.

4. The exhaust observation device for a water-guided oil pan according to claim 2, characterized in that, The transparent panel is made of resin.

5. The exhaust observation device for a water-guided oil pan according to claim 1, characterized in that, The fixing block is provided with mounting holes for bolts to pass through.

6. The exhaust observation device for a water-guided oil pan according to claim 1, characterized in that, The vertical pipe, the arc-shaped return pipe, and the exhaust pipe are an integrated structure.

7. The exhaust observation device for a water-guided oil pan according to claim 1, characterized in that, A counterweight is connected to the side of the vertical tube, and the counterweight is located on the opposite side of the arc-shaped return tube.

8. The venting observation device for a water-guided oil pan according to claim 1, characterized in that, An insect screen is installed inside the exhaust pipe, and the insect screen is located above the second check valve.

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