CN210165171U - Breather valve for high-level oil tank and high-level oil tank with breather valve - Google Patents
Breather valve for high-level oil tank and high-level oil tank with breather valve Download PDFInfo
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- CN210165171U CN210165171U CN201921140927.XU CN201921140927U CN210165171U CN 210165171 U CN210165171 U CN 210165171U CN 201921140927 U CN201921140927 U CN 201921140927U CN 210165171 U CN210165171 U CN 210165171U
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Abstract
The utility model discloses a breather valve for a high-level oil tank and a high-level oil tank with the breather valve, wherein the breather valve comprises a valve body and a valve cover, the valve body is cylindrical and is provided with an air flow channel along the axial center of the valve body, the valve cover is in a round cake shape, the axial center of the valve cover is provided with a through hole with the same size as the outer diameter of the valve body, and the valve cover is sleeved on the vertically arranged valve body through the through hole; the valve cover is provided with a plurality of mounting holes which penetrate through two sides of the valve cover and are distributed in a circular manner, so that the valve cover is conveniently connected with a high-level oil tank; the bottom end of the valve body is provided with a sealing plate, the upper surface of the sealing plate is fixedly connected with the valve body so as to seal the air flow channel, and the lower surface of the sealing plate is fixed with a floating ball; a vent I is arranged on the side wall at the lower end of the valve body, and the outer surface of the side wall of the valve body is communicated with the air flow channel through the vent I; the upper end of the valve body is provided with a limiting plate to prevent the valve body from falling off from the through hole of the valve cover. The high-level oil tank provided with the breather valve can be free from being provided with an oil return pipeline, and the energy consumption of the oil pump can be effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of the oil tank, in particular to a high-order oil tank that is used for breather valve of high-order oil tank and takes breather valve.
Background
In the metallurgical centrifugal pump type dephosphorization, the high-pressure centrifugal pump is mainly a multistage pump, the rotating speed is high, generally 3000 r/min, the bearings supported at two sides bear heavy load, and forced lubrication is needed for cooling the bearings, so that a forced lubrication system is needed.
As shown in fig. 1, the forced lubrication system includes a main oil tank 1, an oil pump 2, a filter, a cooler, a high-level oil tank 6, a motor 5, and the like, wherein the high-level oil tank mainly functions as: when the oil pump 2 is powered on, lubricating oil in the main oil tank enters the high-level oil tank through the check valve 3 to be stored under the action of the oil pump, when power failure occurs suddenly, the oil pump stops supplying oil, the lubricating oil in the high-level oil tank can automatically flow to the bearing of the high-pressure centrifugal pump 4 from a high level to protect the lubrication of the bearing during the sudden power failure, and the high-level oil tank plays a role in protecting the bearing and the high-pressure centrifugal pump and is called as the high-level oil tank. However, in this lubrication system, because the high-level oil tank is to be kept high-level storage, an oil return pipe 8 is arranged at the top of the high-level oil tank, and a normally open throttle valve 7 is arranged on the oil return pipe to return redundant oil in the high-level oil tank to the main oil tank, the length of the oil return pipe is generally larger than 14 m, and the installation height difference between the high-level oil tank and the high-pressure centrifugal pump is larger than 7 m, so that the installation position of the oil return pipe is higher, the installation difficulty is high, the cost of the whole oil return pipe is high, and meanwhile, the oil return pipe always returns oil when the oil pump is electrified, so that the oil pump is always in a high-load working state.
Disclosure of Invention
The above-mentioned not enough to prior art exists, the utility model aims at providing a simple structure, simple to operate's a breather valve for high-order oil tank, still provide the high-order oil tank of taking this breather valve simultaneously, not only can effectively subtract the work load of oil pump, but also can reduce oil return line's installation.
The technical scheme of the utility model is realized like this:
a breather valve for a high-level oil tank comprises a valve body and a valve cover, wherein the valve body is cylindrical, an air flow channel is arranged along the axial center of the valve body, the valve cover is in a round cake shape, a through hole with the same size as the outer diameter of the valve body is arranged at the axial center of the valve cover, and the valve cover is sleeved on the vertically arranged valve body through the through hole; the valve cover is provided with a plurality of mounting holes which penetrate through two sides of the valve cover and are distributed in a circular manner, so that the valve cover is conveniently connected with a high-level oil tank; the bottom end of the valve body is provided with a sealing plate, the upper surface of the sealing plate is fixedly connected with the valve body so as to seal the air flow channel, and the lower surface of the sealing plate is fixed with a floating ball; a vent I is arranged on the side wall at the lower end of the valve body, and the outer surface of the side wall of the valve body is communicated with the air flow channel through the vent I; the upper end of the valve body is provided with a limiting plate to prevent the valve body from falling off from the through hole of the valve cover.
Further, be equipped with the safety cover above the valve gap, thereby the safety cover separates valve body and valve gap are whole to cover with external environment, is equipped with an air vent II on lieing in the safety cover, air vent II communicates external environment and safety cover inside.
Furthermore, the inner surface of the opening of the protective cover is provided with first threads, second threads which are matched and connected with the first threads are arranged on the circumferential surface of the valve cover, and the protective cover is fixedly connected with the valve cover through the first threads and the second threads.
Furthermore, an annular baffle is arranged on the upper surface of the valve cover, and the baffle is arranged on the upper surface of the valve cover and surrounds the upper end of the valve body and the limiting plate.
Furthermore, a fault monitoring hole is formed in the side wall of the protection cover, which is located above the valve cover and at the lower end of the protection cover, so that the using state of the breather valve can be monitored.
Furthermore, a rubber pad is arranged on the sealing plate along the radial circumference of the valve body; the sealing plate and the valve body are integrally formed.
Furthermore, be equipped with screw hole I on the floater, the lower surface of shrouding is equipped with screw hole II that corresponds with screw hole I, then adopts stud to insert respectively corresponding screw hole I and screw hole II in to install thin nut in order to with floater and shrouding fixed connection on the stud in the shrouding outside and the floater outside respectively.
Further, a sealing ring I is arranged between the valve cover through hole and the valve body.
The utility model provides a take high-order oil tank of breather valve, be equipped with oil inlet and oil-out on the high-order oil tank, the oil inlet sets up in high-order oil tank bottom and is connected with into oil pipe way, its characterized in that, the oil-out sets up in high-order oil tank bottom and unites two into one with the oil inlet, is equipped with the breather valve installing port at high-order oil tank top, locates to install at the breather valve installing port and is preceding the breather valve, the breather valve installing port upwards extends turns over a formation installation department after rolling over, is equipped with a plurality of screw holes III that correspond with the valve gap mounting hole on the installation department, then passes the mounting hole through a plurality of bolts and inserts corresponding screw hole III in order to be fixed with valve gap and installation department to make the floater be located high.
Further, a sealing ring II is arranged between the valve cover and the high-level oil tank oil outlet mounting portion, and the sealing ring II is located on the inner side of the bolt.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a breather valve simple structure, simple to operate, inside does not have maintenance part basically, can unmanned operation, and the accessible is dismantled the safety cover and is observed the valve body and stretch out the high lubricating oil that just can judge in the high-order oil tank whether full of valve gap.
2. Install the utility model discloses the high-order oil tank of breather valve need not to increase back oil pipe way after high-order oil tank is full of to reduce the loss of lubricating oil and reduce the energy consumption of oil pump, reduced back oil pipe's installation simultaneously.
Drawings
Fig. 1-a schematic diagram of the working flow of a forced lubrication system.
Fig. 2-the structure of the breather valve of the present invention.
Fig. 3-a schematic view of a high-level oil tank with a breather valve.
FIG. 4-schematic diagram of the working process of the high-level oil tank with breather valve
Wherein: 1-a main oil tank; 2-an oil pump; 3-a one-way valve; 4-high pressure centrifugal pump; 5, a motor; 6-high oil tank; 7-normally open throttle valve; 8-an oil return pipeline; 9-floating ball; 10-stud bolts; 11-a rubber pad; 12-vent I; 13-sealing ring I; 14-a valve body; 15-a protective cover; 16-thin nuts; 17, sealing plates; 18-a valve cover; 19-fault monitoring hole; 20-a baffle plate; 21-a limiting plate; 22-a vent hole II; 23-a bolt; 24-normally open service valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 2, the breather valve for the high-level oil tank comprises a valve body 14 and a valve cover 18, wherein the valve body is cylindrical, an air flow channel is arranged along the axial center of the valve body, the valve cover is in a round cake shape, a through hole with the same size as the outer diameter of the valve body is arranged in the center of the valve cover, and the valve cover is sleeved on the vertically arranged valve body through the through hole; the valve cover is provided with a plurality of mounting holes which penetrate through two sides of the valve cover and are distributed in a circular manner, so that the valve cover is conveniently connected with a high-level oil tank; a sealing plate 17 is arranged at the bottom end of the valve body, the upper surface of the sealing plate is fixedly connected with the valve body to seal the air flow channel, and a floating ball 9 is fixed on the lower surface of the sealing plate; a vent hole I12 is formed in the side wall of the lower end of the valve body, and the outer surface of the side wall of the valve body is communicated with the air flow channel through the vent hole I; the upper end of the valve body is provided with a limiting plate 21 to prevent the valve body from falling off from the through hole of the valve cover. The limiting plate that adopts in this embodiment is thin nut, is equipped with the screw thread at the surface of valve body upper end, thin nut cover is established and is played spacing effect on the valve body.
Therefore, after the breather valve is installed in the high-level oil tank, the interior of the high-level oil tank can be communicated with the air flow channel through the vent hole I, so that the breather valve is communicated with the outside, when the liquid level in the high-level oil tank slowly rises, the gas in the high-level oil tank is discharged out of the high-level oil tank through the vent hole I, under the action of the oil pump, the liquid level of the high-level oil tank continuously rises, the floating ball and the valve body slowly move upwards, after the sealing plate is contacted with the valve cover, the liquid level in the high-level oil tank reaches the highest liquid level, at the moment, the valve body is supported by the buoyancy of the floating ball, so that the high-level oil tank is always kept at the highest liquid level, and the required floating ball is selected by buoyancy calculation, so; when the liquid level in the high-level oil tank slowly descends, the buoyancy to the floating ball is reduced, the valve body slowly descends, and at the moment, gas enters the high-level oil tank through the vent I.
Be equipped with safety cover 15 above the valve gap, thereby the safety cover separates valve body and valve gap are whole to cover with external environment, is equipped with an air vent II 22 on lieing in the safety cover, air vent II communicates external environment and safety cover inside. The protection cover is arranged to protect the valve body and the valve cover, damage to the valve body and the valve cover due to external force is avoided, the vent hole II is arranged, the external environment and equipment are communicated through the vent hole I, the vent hole II, a cavity formed by the air flow channel on the valve body and the protection cover, and automatic opening and closing of the breather valve are achieved through air pressure difference change of the equipment and the external environment. The shape of the protective cover is not limited as long as the protective cover does not affect the up-and-down movement of the valve body, and the protective cover in the embodiment is composed of a cylinder and an arc-shaped end cover arranged at one end of the cylinder.
The internal surface of safety cover opening part is equipped with first screw thread, is equipped with the second screw thread of being connected with first screw thread cooperation along the circumferential surface of valve gap, and safety cover and valve gap pass through first screw thread and second screw thread fixed connection. Thus, the protective cover and the valve cover are fixed and sealed through threads.
An annular baffle 20 is arranged on the upper surface of the valve cover, and the baffle is arranged on the upper surface of the valve cover and surrounds the upper end of the valve body and the limiting plate. After the baffle is arranged, after the breather valve breaks down, a small amount of liquid in the device can be blocked and collected by the retainer ring after overflowing and leaking.
And a fault monitoring hole 19 is formed in the side wall of the protective cover, which is positioned above the valve cover and at the lower end of the protective cover, so as to monitor the use state of the breather valve. The fault monitoring hole is arranged for monitoring whether the breather valve works normally or not, whether the breather valve works normally or not is judged, if the breather valve breaks down, a small amount of overflow liquid flows out of the signal hole, and then a worker observes that measures are convenient to take to solve.
The seal plate is provided with a rubber pad 11 along the radial circumference of the valve body; the sealing plate and the valve body are integrally formed. The rubber pad is arranged here to play a role in buffering when the sealing plate is in contact with the valve cover.
Be equipped with screw hole I on the floater, the lower surface of shrouding is equipped with screw hole II that corresponds with screw hole I, then adopts stud 10 to insert corresponding screw hole I and screw hole II respectively in to install thin nut 16 with floater and shrouding fixed connection on the stud in the shrouding outside and the floater outside respectively.
And a sealing ring I13 is arranged between the through hole of the valve cover and the valve body. Further preventing the liquid in the device from overflowing from the valve cover and the valve body.
Referring to fig. 3, a take high-order oil tank of breather valve, be equipped with oil inlet and oil-out on high-order oil tank 6, the oil inlet sets up in high-order oil tank bottom and is connected with the oil inlet pipe way, the oil-out sets up in high-order oil tank bottom and unites two into one with the oil inlet, is equipped with the breather valve installing port at high-order oil tank top, locates to install at the breather valve installing port and is preceding the breather valve, the breather valve installing port upwards extends turns over a book back and forms the installation department, is equipped with a plurality of screw holes III that correspond with the valve gap mounting hole on the installation department, then passes the screw hole III that the mounting hole inserted and corresponds through a plurality of bolts 23 in order to fix valve gap and installation department to make the floater be located high-order oil tank.
And a sealing ring II is arranged between the valve cover and the high-level oil tank oil outlet mounting part, and the sealing ring II is positioned on the inner side of the bolt.
An oil inlet pipeline is arranged at the bottom of the high-level oil tank with the breather valve, and a normally open maintenance valve 24 is arranged on the oil inlet pipeline. The working flow schematic diagram of the high-level oil tank with the breather valve is shown in fig. 4, and the high-level oil tank can be divided into four states, namely an initial state, an oil inlet state to an upper level state, an oil inlet state to a highest level state and an oil outlet state.
Under initial state (a), begin the oil feed under the effect of oil pump, the gas in the high-order oil tank gets into the safety cover through the air runner and then discharges from air vent II after flowing out from air vent I, gets into external environment. Along with the oil of oil pump income is more and more, the liquid level of high-order oil tank rises gradually, and the buoyancy of floater increases gradually, under the effect of oil pump and floater buoyancy for floater and the slow rebound of valve body, when the liquid level rises to upper position state (b), air vent I is located inside the through-hole, but because gaseous unable discharge high-order oil tank, still last the oil feed under the effect of oil pump and floater buoyancy, until rubber pad and valve gap contact on the shrouding, the oil feed is to highest position state (c). In the process, 20-30% of pressure of the oil pump acts on the oil pump of the main oil tank to pump into the high-level oil tank, and the rest pressure is used for lubricating the bearing of the high-pressure centrifugal pump.
When the liquid level of high-order oil tank reached highest position state, the oil pump stopped to go into high-order oil tank with the oil pump, and the total pressure of oil pump is used for playing the lubrication action to high-pressure centrifugal pump bearing department, has lubricating oil on the pipeline that high-pressure centrifugal pump played the lubrication action always to make the oil of high-order oil tank can not flow down and reduce, the buoyancy of the lubricating oil of high-order oil tank this moment to the floater equals the gravity of valve body and floater, makes the liquid level of high-order oil tank remain highest position throughout simultaneously. When the condition of power failure suddenly occurs, no lubricating oil is arranged on a pipeline for lubricating the high-pressure centrifugal pump, and the air pressure of the external environment is greater than the air pressure in the high-level oil tank, so that the high-level oil tank enters an oil outlet state (d), the lubricating oil of the high-level oil tank flows to the bearing of the high-pressure centrifugal pump from the oil inlet pipeline, the lubrication of the bearing is protected when the power failure suddenly occurs, the floating ball and the valve body move downwards slowly, and the air pressure of the external environment is greater than the air pressure in the high-level oil tank.
Finally, it should be noted that the above-mentioned embodiments of the present invention are only examples for illustrating the present invention, and are not limitations to the embodiments of the present invention. Variations and modifications in other variations will occur to those skilled in the art upon reading the foregoing description. Not all embodiments are exhaustive. All obvious changes or variations which are introduced by the technical solution of the present invention are still within the scope of the present invention.
Claims (10)
1. A breather valve for a high-level oil tank comprises a valve body and a valve cover, and is characterized in that the valve body is cylindrical, an air flow channel is arranged along the axial center of the valve body, the valve cover is in a shape of a round cake, a through hole with the same size as the outer diameter of the valve body is arranged at the axial center of the valve cover, and the valve cover is sleeved on the vertically arranged valve body through the through hole; the valve cover is provided with a plurality of mounting holes which penetrate through two sides of the valve cover and are distributed in a circular manner, so that the valve cover is conveniently connected with a high-level oil tank; the bottom end of the valve body is provided with a sealing plate, the upper surface of the sealing plate is fixedly connected with the valve body so as to seal the air flow channel, and the lower surface of the sealing plate is fixed with a floating ball; a vent I is arranged on the side wall at the lower end of the valve body, and the outer surface of the side wall of the valve body is communicated with the air flow channel through the vent I; the upper end of the valve body is provided with a limiting plate to prevent the valve body from falling off from the through hole of the valve cover.
2. The breather valve for an elevated fuel tank of claim 1, wherein a protective cover is provided over the valve cover, the protective cover covering the valve body and the valve cover from the outside environment, and a vent hole ii is provided in the protective cover, the vent hole ii communicating the outside environment with the inside of the protective cover.
3. The breather valve for an elevated tank of claim 2, wherein the inner surface of the opening of the protective cover is provided with a first thread, the circumferential surface of the valve cover is provided with a second thread which is engaged with the first thread, and the protective cover and the valve cover are fixedly connected by the first thread and the second thread.
4. A breather valve for a high-level fuel tank according to claim 2, wherein an annular baffle is provided on the upper surface of the valve cover, the baffle being mounted on the upper surface of the valve cover and surrounding the upper end of the valve body and the retainer plate.
5. The breather valve for the high-level oil tank, according to the claim 2 or 4, wherein the side wall of the protection cover above the valve cover and at the lower end of the protection cover is provided with a fault monitoring hole to monitor the use state of the breather valve.
6. The breather valve for a high-level fuel tank as in claim 1, wherein the sealing plate is provided with a rubber pad along a radial circumference of the valve body; the sealing plate and the valve body are integrally formed.
7. The breather valve for an elevated oil tank, according to claim 1, wherein the floating ball is provided with a threaded hole I, the lower surface of the sealing plate is provided with a threaded hole II corresponding to the threaded hole I, and then the threaded holes I and II are respectively inserted by using stud bolts, and thin nuts are respectively mounted on the stud bolts outside the sealing plate and outside the floating ball to fixedly connect the floating ball and the sealing plate.
8. The breather valve for the high-level oil tank as claimed in claim 1, wherein a sealing ring I is arranged between the through hole of the valve cover and the valve body.
9. The utility model provides a take high-order oil tank of breather valve, be equipped with oil inlet and oil-out on the high-order oil tank, the oil inlet sets up in high-order oil tank bottom and is connected with oil inlet pipe, its characterized in that, the oil-out sets up in high-order oil tank bottom and unites two into one with the oil inlet, is equipped with the breather valve installing port at high-order oil tank top, installs in breather valve installing port department that claim 1~8 is arbitrary the breather valve, the breather valve installing port upwards extends turns over a book back and forms the installation department, is equipped with a plurality of screw holes III that correspond with the valve gap mounting hole on the installation department, then passes the mounting hole through a plurality of bolts and inserts and correspond screw hole III in order to fix valve gap and installation department to make the floater be located high-order oil tank.
10. The high-level oil tank with the breather valve as recited in claim 9, wherein a sealing ring II is arranged between the valve cover and the high-level oil tank outlet mounting portion, and the sealing ring II is positioned on the inner side of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140927.XU CN210165171U (en) | 2019-07-19 | 2019-07-19 | Breather valve for high-level oil tank and high-level oil tank with breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140927.XU CN210165171U (en) | 2019-07-19 | 2019-07-19 | Breather valve for high-level oil tank and high-level oil tank with breather valve |
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| Publication Number | Publication Date |
|---|---|
| CN210165171U true CN210165171U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921140927.XU Active CN210165171U (en) | 2019-07-19 | 2019-07-19 | Breather valve for high-level oil tank and high-level oil tank with breather valve |
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| Country | Link |
|---|---|
| CN (1) | CN210165171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348278A (en) * | 2021-12-22 | 2022-04-15 | 石家庄飞机工业有限责任公司 | Oil collecting tank ventilation device after turboprop engine is replaced on Y5B airplane |
-
2019
- 2019-07-19 CN CN201921140927.XU patent/CN210165171U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348278A (en) * | 2021-12-22 | 2022-04-15 | 石家庄飞机工业有限责任公司 | Oil collecting tank ventilation device after turboprop engine is replaced on Y5B airplane |
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