CN213900686U - Exhaust device for generator lubricating oil circulation pipeline system - Google Patents
Exhaust device for generator lubricating oil circulation pipeline system Download PDFInfo
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- CN213900686U CN213900686U CN202023046574.2U CN202023046574U CN213900686U CN 213900686 U CN213900686 U CN 213900686U CN 202023046574 U CN202023046574 U CN 202023046574U CN 213900686 U CN213900686 U CN 213900686U
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Abstract
The utility model belongs to the technical field of hydroelectric power generation equipment, in particular to an exhaust device for a generator lubricating oil circulation pipeline system, which comprises an exhaust valve arranged in an exhaust hole of a closed oil cavity through a mounting plate; the valve body of the exhaust valve is divided into an upper half part exposed out of the external space and a lower half part sealed in the sealed oil cavity by the mounting plate by taking the mounting plate as a limit, the valve body of the exhaust valve is hollow, and the hollow cavities of the upper half part and the lower half part of the valve body are communicated and form an exhaust channel of the sealed oil cavity and the external space; the caliber of the cavity in the upper half part of the valve body is smaller than that of the cavity in the lower half part of the valve body, a hollow ball which can float along with buoyancy is arranged in the cavity in the lower half part of the valve body, the size of the hollow ball is larger than that of the cavity in the upper half part of the valve body, and the hollow ball completely blocks the joint of the cavity in the upper half part and the cavity in the lower half part after floating to close the exhaust passage.
Description
Technical Field
The utility model relates to a power generation facility bearing field, concretely relates to generator lubricating oil exhaust apparatus for circulation pipe-line system.
Background
The flow of a lubricating oil circulating system of a bearing of the hydraulic generator is large, a closed oil cavity is formed in the local part of the circulating system, when the system is started, air in the closed oil cavity needs to be discharged quickly, and a quick exhaust valve needs to be used.
The exhaust valve is applied to exhaust of pipelines such as an independent heating system, a central heating system, a heating boiler, a central air conditioner, a floor heating system, a solar heating system and the like. When gas overflows from the system, the gas ascends along the pipeline and finally gathers at the highest point of the system, the exhaust valve is generally installed at the highest point of the system, when the gas enters the valve cavity of the exhaust valve and gathers at the upper part of the exhaust valve, the pressure rises along with the increase of the gas in the valve, when the gas pressure is higher than the system pressure, the gas can enable the water surface in the cavity to fall, the buoy falls along with the water level, and the exhaust port is opened; after the gas is exhausted, the water level rises, the buoy also rises along with the water level, and the exhaust port is closed. In the same way, when negative pressure is generated in the system, the water level in the valve cavity is lowered, the exhaust port is opened, and the outside atmospheric pressure is higher than the system pressure, so that the atmosphere can enter the system through the exhaust port, and the negative pressure is prevented from being damaged. If the valve cap on the exhaust valve body is screwed down and the exhaust valve stops exhausting, the valve cap is usually in an open state. The exhaust valve can also be matched with the isolating valve for use, so that the exhaust valve is convenient to overhaul.
In the lubricating oil circulating system of the bearing of the water turbine generator, because the lubricating oil is stirred and impacted in the oil groove when the unit operates, a large amount of bubbles are generated, the bubbles burst to form oil mist, and the temperature of the local part of the tile surface oil film is higher, and the lubricating oil is vaporized, the exhaust valve product applied to the lubricating oil circulating system of the bearing of the water turbine generator needs to solve the problems of large flow, high exhaust speed requirement and capability of preventing the oil from being discharged along with the pressure relief gas.
In the prior art, a chinese utility model patent document with publication number CN203215240U and publication time of 2013, 9, 25 discloses a lubricating oil mist discharge device for a sliding bearing oil groove of a generator set, which comprises an oil groove cover, wherein the oil groove cover is provided with an air inlet and an air outlet, the air inlet is provided with an air filter, and external air is filtered by the air filter and then enters the oil groove; the oil splash and oil baffle cover is arranged on the exhaust port, and the oil mist discharge device is arranged on the oil splash and oil baffle cover; the splash-proof oil baffle cover is provided with a surrounding part arranged in the circumferential direction, a first connecting part is arranged on the outer edge of the top of the surrounding part, a bottom plate is arranged at the bottom of the surrounding part, a labyrinth passage is arranged in the surrounding part, a labyrinth passage inlet serving as an air inlet of the splash-proof oil baffle cover is arranged on the side wall of the surrounding part, and a labyrinth passage outlet serving as an air outlet of the splash-proof oil baffle cover is arranged at the top of the surrounding part. The utility model can achieve the purpose of purifying oil mist and protect the oil mist discharge device; the first groove plate and the second groove plate are mutually embedded and arranged to play a role in accelerating the backflow of the liquefied lubricating oil to the oil groove.
However, the exhaust valve product in the prior art has small drift diameter and insufficient exhaust volume, can not discharge air in time, and can not meet the requirement of a spray cooling lubrication bearing external circulation system operating at a low oil level.
Disclosure of Invention
An object of the utility model is to prior art not enough, thereby provide a generator lubricating oil circulation exhaust apparatus for pipe-line system that simple structure, reliability are high, utilize buoyancy to control the exhaust passage switching along with the oil liquid state fluctuation in the exhaust process and avoid fluid to let out.
The method is realized by the following technical scheme:
the utility model provides a generator lubricating oil circulation exhaust apparatus for pipe-line system which characterized in that: comprises an exhaust valve arranged in an exhaust hole of a closed oil cavity through a mounting plate; the valve body of the exhaust valve is divided into an upper half part exposed out of an external space and a lower half part sealed in the cavity of the sealed oil cavity by the mounting plate, the valve body of the exhaust valve is hollow, the hollow cavities of the upper half part and the lower half part of the valve body are communicated and form an exhaust passage of the sealed oil cavity and the external space, namely, the exhaust valve can be mounted on the sealed oil cavity in place through the mounting plate, only one exhaust passage of the valve body of the exhaust valve is left, so that oil leakage from gaps is avoided, and the exhaust structure can be detached and replaced; the aperture of the cavity in the upper half part of the valve body is smaller than that of the cavity in the lower half part of the valve body, the hollow ball which can float along with buoyancy is arranged in the cavity in the lower half part of the valve body, the size of the hollow ball is larger than that of the cavity in the upper half part of the valve body, the hollow ball completely blocks the joint of the cavity in the upper half part and the cavity in the lower half part after floating to close the exhaust passage, when the exhaust is needed, the gas is discharged through the exhaust passage in the exhaust valve body, but when the gas is almost discharged, the oil in the oil cavity overflows, the hollow ball floats on the oil liquid level all the time, when the hollow ball floats to the cavity opening in the upper half part of the exhaust valve body, the whole exhaust passage is just blocked, so that the closed oil cavity is completely closed, the oil cannot overflow, and the opening and closing control of the exhaust passage is realized by the change of the height of the oil liquid, not only can ensure the normal discharge of gas, but also can avoid the leakage of oil liquid.
Preferably, the mounting panel is the fixed ring flange who sets up in the discharge valve body outside, and ring flange and discharge valve body between the outside be connected the zero clearance, correspond, the connecting plate corresponds for the size, and is used for fixed connection ring flange's mounting disc, through detachable mounting zero clearance sealing connection between ring flange and the mounting disc, be connected through flange structure between discharge valve and the airtight oil pocket promptly, it is stable convenient and have fine mechanical gas tightness to constitute the space cavity of a buffering between the airtight cavity body wall around ring flange, mounting disc and the exhaust hole, when having fluid to spill over along with exhaust gas because of pressure or flow influence in the exhaust process, then can flow into the space cavity of buffering in order to reach the effect of pressure release buffering when the clean shot plugged up exhaust passage.
Furthermore, the annular flange plate is detachably and fixedly connected with the mounting disc through a plurality of screw rods with stop gaskets.
Preferably, a plurality of sealing rings are further arranged between the annular flange plate and the mounting plate, the sealing rings are used as added items of sealing connection, effective sealing of the sealed cavity can be formed mainly by connection between the exhaust valve and the sealed oil cavity, and meanwhile, the sealing rings can be replaced simultaneously in the process of replacing the valve body of the exhaust valve to ensure subsequent sealing effect.
And to discharge valve body, an optional scheme does, discharge valve's valve body is less than the bottle valve body of lower half diameter for first diameter, is similar to the shape of beer bottle promptly, the mounting panel is for encircleing the crown plate that sets up in the middle of bottle valve body, and the first of bottle valve body exposes in outer space, as the blast pipe, and the lower half of bottle valve body certainly airtight oil pocket exhaust hole inserts to airtight oil pocket in, just the changeover portion between the cavity of first of valve body and the cavity of lower half corresponds for radian size the indent anchor ring of clean shot surface radian promptly when the clean shot reaches the changeover portion along with the buoyancy that fluid rises, just blocks and block the exhaust passage, cuts off the only passageway that fluid oozes to outer space and plays airtight effect.
Or the valve body of the exhaust valve is a bottle-shaped valve body of which the diameter of the upper half part is smaller than that of the lower half part, the mounting plate is an annular plate arranged in the middle of the bottle-shaped valve body in a surrounding mode, the upper half part of the bottle-shaped valve body is exposed out of the external space, the lower half part of the bottle-shaped valve body is inserted into the sealed oil cavity from the sealed oil cavity exhaust hole, the transition section between the hollow cavity of the upper half part of the valve body and the hollow cavity of the lower half part of the valve body is a conical surface which is narrow at the upper part and wide at the lower part, the angle of the conical surface is 60-175 degrees, and the conical surface can also be used for just clamping the hollow ball and blocking an exhaust passage.
Preferably, the lower half part of the valve body of the exhaust valve is a cylindrical bottle body with a plurality of air holes formed in the side wall and the bottom, the size of each air hole is smaller than the diameter of each hollow ball, namely, gas can directly penetrate through the air holes to be discharged outwards, and oil liquid can be buffered by the bottle body when the pressure is rapidly released and the air is exhausted.
Furthermore, the hollow ball is a stainless steel positive spherical hollow ball with the wall thickness of 0.2 mm-2.3 mm, the hollow ball can achieve a better sealing effect through micro deformation, and the stainless steel has good corrosion resistance and restoration performance.
Compared with the prior art, the technical scheme of the invention has the advantages of larger air displacement, simple structure, difficult blockage, good sealing without non-metallic sealing materials and long service life.
Drawings
The foregoing and following detailed description of the invention will be apparent when read in conjunction with the following drawings, in which:
FIG. 1 is a schematic view of the main structure of the present invention;
in the figure:
1. mounting a plate; 2. sealing the oil cavity; 3. an exhaust valve; 4. hollow spheres; 5. mounting a disc; 6. a screw; 7. a stopper spacer; 8. and (5) sealing rings.
Detailed Description
The technical solution for achieving the objectives of the present invention will be further described by using several specific examples, and it should be noted that the technical solution claimed in the present invention includes, but is not limited to, the following examples.
Example 1
As a basic embodiment of the present invention, as shown in fig. 1, the present embodiment discloses an exhaust device for a generator lubricating oil circulation pipeline system, which comprises an exhaust valve 3 installed in an exhaust hole of a closed oil cavity 2 through a mounting plate 1; the valve body of the exhaust valve 3 is divided into an upper half part exposed out of the external space and a lower half part sealed in the cavity of the sealed oil cavity 2 by the mounting plate 1 by taking the mounting plate 1 as a limit, the valve body of the exhaust valve 3 is hollow, the hollow cavities of the upper half part and the lower half part of the valve body are communicated and form an exhaust passage of the sealed oil cavity 2 and the external space, namely, the exhaust valve 3 can be mounted on the sealed oil cavity 2 in place through the mounting plate 1, only one exhaust passage of the valve body of the exhaust valve 3 is left, so that oil leakage from gaps is avoided, and the exhaust structure can be replaced and disassembled; the aperture of the cavity in the upper half part of the valve body is smaller than that of the cavity in the lower half part of the valve body, the hollow ball 4 capable of floating along with buoyancy is arranged in the cavity in the lower half part of the valve body, the size of the hollow ball 4 is larger than that of the cavity in the upper half part of the valve body, the hollow ball 4 floats to completely block the joint of the cavity in the upper half part and the cavity in the lower half part to close the exhaust passage, when the exhaust is needed, the gas is exhausted through the exhaust passage in the valve body of the exhaust valve 3, but when the gas is exhausted almost, the oil in the oil cavity overflows to simultaneously float the hollow ball 4, the hollow ball 4 always floats on the oil liquid level, when the hollow ball 4 floats to the cavity opening in the upper half part of the valve body of the exhaust valve 3, the whole exhaust passage is just blocked to completely seal the oil cavity 2, the oil cannot overflow, and the opening and closing control of the exhaust passage is realized by the change of the self height of the oil, not only can ensure the normal discharge of gas, but also can avoid the leakage of oil liquid.
Example 2
As a preferred technical solution of this embodiment, on the basis of the above technical solution of this embodiment, preferably, the mounting plate 1 is a ring flange fixedly disposed on the outer side of the valve body of the exhaust valve 3, and the connection between the ring flange and the outer side of the valve body of the exhaust valve 3 is gapless, correspondingly, the connecting plate is a mounting plate 5 corresponding in size and used for fixedly connecting the ring flange, the ring flange is gapless and hermetically connected with the mounting plate 5 through a detachable fixing member, that is, the exhaust valve 3 is connected with the sealed oil chamber 2 through a flange structure, which is stable and convenient and has good mechanical airtightness, and a buffer space cavity is formed among the flange, the mounting plate 5 and the wall of the sealed cavity around the exhaust hole, when oil overflows outwards along with the exhaust gas due to the influence of pressure or flow during the exhaust process, the hollow ball 4 can flow into the buffer space cavity when blocking the exhaust passage to achieve the effect of pressure relief and buffer.
Furthermore, the annular flange plate is detachably and fixedly connected with the mounting plate 5 through a plurality of screw rods 6 with stop gaskets 7.
Preferably, a plurality of sealing rings 8 are further arranged between the annular flange plate and the mounting plate 5, the sealing rings 8 are used as added items of sealing connection, effective sealing of the sealed cavity can be formed mainly by connection between the exhaust valve 3 and the sealed oil cavity 2, and meanwhile, the sealing rings 8 can be replaced simultaneously in the process of replacing the valve body of the exhaust valve 3 to ensure subsequent sealing effect.
And to 3 valve bodies of discharge valve, an optional scheme does, discharge valve 3's valve body is the bottle type valve body that first diameter is less than the lower half diameter, is similar to the shape of beer bottle promptly, mounting panel 1 is for encircleing the crown plate that sets up in the middle of the bottle type valve body, and the first of bottle type valve body exposes in outer space, as the blast pipe, and the lower half of bottle type valve body certainly sealed oil pocket 2 exhaust holes insert to sealed oil pocket 2 in, just the changeover portion between the cavity of first cavity of valve body and the cavity of lower half corresponds for radian size the indent anchor ring of 4 surface radians of clean shot, the buoyancy that just rises along with fluid at clean shot 4 promptly reaches the changeover portion, just blocks and blocks the exhaust passage, cuts off the only passageway that fluid oozed to outer space and plays inclosed effect.
Or the valve body of the exhaust valve 3 is a bottle-shaped valve body with the diameter of the upper half part smaller than that of the lower half part, the mounting plate 1 is a ring plate arranged in the middle of the bottle-shaped valve body in a surrounding mode, the upper half part of the bottle-shaped valve body is exposed out of the external space, the lower half part of the bottle-shaped valve body is inserted into the sealed oil cavity 2 from the exhaust hole of the sealed oil cavity 2, the transition section between the hollow cavity of the upper half part of the valve body and the hollow cavity of the lower half part of the valve body is a conical surface with a narrow upper part and a wide lower part, the angle of the conical surface ranges from 60 degrees to 175 degrees, and the conical surface can also be used for just clamping the hollow ball 4 and blocking the exhaust passage.
Preferably, the lower half part of the valve body of the exhaust valve 3 is a cylindrical bottle body with a plurality of air holes formed in the side wall and the bottom, and the size of the air holes is smaller than the diameter of the hollow ball 4, namely, gas can directly penetrate through the air holes to be discharged outwards, and oil liquid can be buffered by the bottle body when the pressure is rapidly released and the air is exhausted.
Furthermore, the hollow ball 4 is a stainless steel positive spherical hollow ball 4 with the wall thickness of 0.2 mm-2.3 mm, the hollow ball 4 can achieve a better sealing effect through micro deformation, and the stainless steel has good corrosion resistance and restoration performance.
Compared with the prior art, the technical scheme of the invention has the advantages of larger air displacement, simple structure, difficult blockage, good sealing without non-metallic sealing materials and long service life.
Claims (8)
1. The utility model provides a generator lubricating oil circulation exhaust apparatus for pipe-line system which characterized in that: comprises an exhaust valve (3) which is arranged in an exhaust hole of a closed oil cavity (2) through a mounting plate (1); the valve body of the exhaust valve (3) is divided into an upper half part exposed out of the external space and a lower half part sealed in the cavity of the sealed oil cavity (2) by the mounting plate (1) by taking the mounting plate (1) as a limit, the valve body of the exhaust valve (3) is hollow, and the hollow cavities of the upper half part and the lower half part of the valve body are communicated and form an exhaust passage of the sealed oil cavity (2) and the external space; the caliber of the cavity in the upper half part of the valve body is smaller than that of the cavity in the lower half part of the valve body, the hollow ball (4) capable of floating along with buoyancy is arranged in the cavity in the lower half part of the valve body, the size of the hollow ball (4) is larger than that of the cavity in the upper half part of the valve body, and the hollow ball (4) completely blocks the joint of the cavity in the upper half part and the cavity in the lower half part after floating to close the exhaust passage.
2. The exhaust apparatus for a generator lubricant oil circulation line system as set forth in claim 1, wherein: mounting panel (1) is for the fixed ring flange who sets up in discharge valve (3) valve body outside, and ring flange and discharge valve (3) valve body outside between be connected the zero clearance, correspond, airtight oil pocket (2) outside, exhaust hole are fixed around be provided with the size and correspond and be used for fixed connection ring flange's mounting disc (5), through detachable mounting zero clearance sealing connection between ring flange and mounting disc (5).
3. The exhaust apparatus for a generator lubricant oil circulation line system as set forth in claim 2, wherein: the annular flange plate is detachably and fixedly connected with the mounting plate (5) through a plurality of screw rods (6) with stop gaskets (7).
4. An exhaust apparatus for a generator lubricating oil circulation line system according to claim 2 or 3, characterized in that: and a plurality of sealing rings (8) are arranged between the annular flange plate and the mounting plate (5).
5. The exhaust apparatus for a generator lubricant oil circulation line system as set forth in claim 1, wherein: the valve body of discharge valve (3) is the bottle type valve body that first diameter is less than the lower half diameter, mounting panel (1) is for encircleing the ring plate that sets up in the middle of the bottle type valve body, and first of bottle type valve body exposes in the outer space, the lower half of bottle type valve body certainly airtight oil pocket (2) exhaust hole inserts to airtight oil pocket (2) in, just the transition section between the cavity of first cavity of valve body and the cavity of lower half corresponds for the radian size the indent anchor ring of clean shot (4) surface radian.
6. The exhaust apparatus for a generator lubricant oil circulation line system as set forth in claim 1, wherein: the valve body of the exhaust valve (3) is a bottle-shaped valve body with the diameter of the upper half part smaller than that of the lower half part, the mounting plate (1) is a ring plate arranged in the middle of the bottle-shaped valve body in a surrounding mode, the upper half part of the bottle-shaped valve body is exposed out of the outer space, the lower half part of the bottle-shaped valve body is inserted into the sealed oil cavity (2) from the exhaust hole of the sealed oil cavity (2), the transition section between the hollow cavity of the upper half part of the valve body and the hollow cavity of the lower half part of the valve body is a conical surface with a narrow upper part and a wide lower part, and the angle of the conical surface ranges from 60 degrees to 175 degrees.
7. The exhaust apparatus for a generator lubricating oil circulation line system as claimed in claim 1, 5 or 6, wherein: the lower half part of the valve body of the exhaust valve (3) is a cylindrical bottle body with a plurality of air holes formed in the side wall and the bottom, and the size of each air hole is smaller than the diameter of the hollow ball (4).
8. The exhaust apparatus for a generator lubricant oil circulation line system as set forth in claim 1, wherein: the hollow ball (4) is a stainless steel positive spherical hollow ball (4) body with the wall thickness of 0.2-2.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023046574.2U CN213900686U (en) | 2020-12-17 | 2020-12-17 | Exhaust device for generator lubricating oil circulation pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023046574.2U CN213900686U (en) | 2020-12-17 | 2020-12-17 | Exhaust device for generator lubricating oil circulation pipeline system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213900686U true CN213900686U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023046574.2U Active CN213900686U (en) | 2020-12-17 | 2020-12-17 | Exhaust device for generator lubricating oil circulation pipeline system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213900686U (en) |
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2020
- 2020-12-17 CN CN202023046574.2U patent/CN213900686U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220302 Address after: 188 Huanghe West Road, Jingyang District, Deyang City, Sichuan Province Patentee after: DONGFANG ELECTRIC MACHINERY Co.,Ltd. Patentee after: China Three Gorges Construction Engineering (Group) Co., Ltd Address before: 188 Huanghe West Road, Jingyang District, Deyang City, Sichuan Province Patentee before: DONGFANG ELECTRIC MACHINERY Co.,Ltd. |
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| TR01 | Transfer of patent right |