CN210889109U - Flow-adjustable throttling orifice - Google Patents
Flow-adjustable throttling orifice Download PDFInfo
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- CN210889109U CN210889109U CN201921665752.4U CN201921665752U CN210889109U CN 210889109 U CN210889109 U CN 210889109U CN 201921665752 U CN201921665752 U CN 201921665752U CN 210889109 U CN210889109 U CN 210889109U
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- valve body
- adjusting shaft
- hole
- orifice plate
- lubricating oil
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Abstract
The utility model provides a flow adjustable orifice plate, connects in diesel engine booster's lubricating oil pipeline which characterized in that: the orifice plate comprises a valve body, an adjusting shaft and a sealing ring, wherein a through hole penetrating through the valve body is formed in the center of the valve body and used for circulating lubricating oil of the supercharger, a cavity communicated with the through hole and the upper end of the valve body is formed in the valve body, the adjusting shaft is connected into the cavity through threads, the lower end of the adjusting shaft extends into the through hole, the sealing ring is sleeved on the periphery of the adjusting shaft and clamped between the adjusting shaft and the inner wall of the cavity, and the adjusting shaft is rotated to adjust the position of the lower end of the adjusting shaft extending into the through hole so as to change the sectional area of the lubricating oil passing through the orifice plate. The utility model has the advantages of flow adjustable function has realized the stable control to flow in the diesel engine booster lubricating oil pipeline, has simple structure, stable performance, control reliable, optimize the lubricating oil supply and the operating mode accommodation is wide.
Description
Technical Field
The utility model relates to a booster lubricating oil system of marine diesel engine, concretely relates to orifice plate with adjustable flow belongs to marine diesel engine technical field.
Background
In the marine diesel engine, the supercharger can fully mix fresh air with fuel oil at a certain pressure in the combustion process of the main engine, so that the combustion can be more complete. The tail gas discharged by the marine main engine pushes one end of the supercharger to rotate, and the other end of the supercharger provides fresh air with certain pressure for the main engine through the rotation of the shaft. Because the supercharger is driven to rotate by utilizing the tail gas of the marine main engine, and the tail gas has certain temperature, the damage of the main bearing of the supercharger can be caused due to overhigh temperature of the supercharger, and in order to avoid the possible fault of the supercharger, the main bearing of the supercharger must be fully lubricated and cooled by an oil system during working. The lubricating oil from the supercharger has certain temperature and contains scrap iron and dirty oil. In order to control the oil inlet pressure within a certain range and avoid the waste of lubricating oil, a fixed-value throttling orifice plate is usually installed in a lubricating oil pipeline of the supercharger. However, the fixed-value orifice plate cannot adjust the amount of lubricating oil, so that the fixed-value orifice plate cannot adapt to different working conditions of loads, rotating speeds and temperatures of the supercharger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provides a flow adjustable orifice plate, can control booster fuel oil system according to factors such as the load of booster, rotational speed, temperature variation, adjusts booster lubricating oil system in certain pressure and flow within range, both can make the booster normally work, can realize the optimization of lubricating oil supply again.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a flow adjustable orifice plate, connects in diesel engine booster's lubricating oil pipeline which characterized in that: the orifice plate comprises a valve body, an adjusting shaft and a sealing ring, wherein a through hole penetrating through the valve body is formed in the center of the valve body and used for circulating lubricating oil of the supercharger, a cavity communicated with the through hole and the upper end of the valve body is formed in the valve body, the adjusting shaft is connected into the cavity through threads, the lower end of the adjusting shaft extends into the through hole, the sealing ring is sleeved on the periphery of the adjusting shaft and clamped between the adjusting shaft and the inner wall of the cavity, and the adjusting shaft is rotated to adjust the position of the lower end of the adjusting shaft extending into the through hole so as to change the sectional area of the lubricating oil passing through the orifice plate.
As a further improvement, a plurality of bolt holes used for being connected with the lubricating oil pipeline are arranged on the side face of the valve body, and the number, the size and the hole center distance of the bolt holes are determined according to the flange structure of the lubricating oil pipeline.
As a further improvement, the cavity of the valve body comprises an internal thread hole and a cylindrical hole which are communicated up and down and are coaxial, the internal thread hole is communicated with the outside of the valve body, and the cylindrical hole is communicated with the through hole.
As a further improvement, the adjusting shaft comprises a hexagonal head, a threaded rod and a cylinder which are sequentially connected from top to bottom, the threaded rod is matched and connected with an internal threaded hole of the valve body, the cylinder is matched with a cylindrical hole of the valve body, an annular sealing ring groove is formed in the cylinder, and the sealing ring is embedded in the sealing ring groove.
As a further improvement, the internal thread hole of the valve body and the thread of the threaded rod of the adjusting shaft are made of tubular threads or metric threads.
As a further improvement, the orifice plate also comprises two locking nuts which are screwed on a threaded rod of the adjusting shaft outside the valve body.
As a further improvement, the aperture of the through hole of the valve body is equal to or smaller than the inner diameter of the lubricating oil pipeline.
As a further improvement, the cross-sectional area of the lubricating oil passing through the throttling orifice plate is changed from 0 to the full aperture.
As a further improvement, the pressure resistance of the orifice plate is within 10 bar.
Compare with current definite value orifice plate, the utility model discloses a beneficial technological effect as follows:
1. the through area of the through hole (throttle hole) is adjusted through the change of the position of the adjusting shaft on the valve body, so that the throttle hole plate realizes the function of adjusting the flow, and the effects of enabling the supercharger to normally work and optimizing the supply of lubricating oil are achieved.
2. Through the double-nut locking effect of the locking nut on the position of the adjusting shaft, the flow of the throttling orifice plate can be stabilized at a certain value, fluctuation is reduced, and the performance of the throttling orifice plate is stabilized.
3. The pressure sealing capacity of the throttle orifice plate within 10bar can be achieved by matching the adjusting shaft and the sealing ring, so that the pressure sealing device is suitable for working conditions of different loads, rotating speeds, temperatures and the like of the supercharger.
In a word, the utility model has the function of flow adjustable, realized the stable control to flow in the diesel engine booster lubricating oil pipeline, have simple structure, stable performance, control reliable, optimize the wide advantage of lubricating oil supply and operating mode accommodation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a schematic view of a valve body.
Fig. 4 is a schematic view of the adjustment shaft.
In the figure, the position of the upper end of the main shaft,
the valve comprises a through hole 1, an adjusting shaft 2, a locking nut 3, a sealing ring 4, a valve body 5, a hexagonal head 21, a threaded rod 22, a cylinder 23, a sealing ring groove 24, a bolt hole 51, an internal threaded hole 52 and a cylindrical hole 53.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples, but should not be construed to limit the scope of the invention. All equivalent changes and modifications made according to the content of the present invention shall be the technical scope of the present invention.
The utility model is used for among the booster lubricating oil system of marine diesel engine, through the height of rotatory regulating spindle relocation, realize the adjustment of orifice aperture area size to play the effect of regulation flow.
Referring to fig. 1 and fig. 2, the orifice plate with adjustable flow rate is connected to a lubricating oil pipeline of a diesel supercharger, and includes a valve body 5, an adjusting shaft 2, two locking nuts 3, and a sealing ring 4.
Referring to fig. 3, a through hole 1 is formed in the center of the valve body 5 and traverses the valve body 5, and the through hole 1 is an orifice for passing the lubricant of the supercharger and has a diameter equal to or smaller than the inner diameter of the lubricant pipe. A plurality of bolt holes 51 are formed in the side face of the valve body 5 around the through hole 1, the bolt holes 51 are matched with a flange of the lubricating oil pipeline of the supercharger and used for connecting the lubricating oil pipeline, and the number, the size and the hole center distance of the bolt holes 51 are determined according to different specifications of the flange of the lubricating oil pipeline; the orifice plate is connected to a flange in the oil system via the bolt hole 51, so that the entire orifice plate is fixed in the entire system.
A cavity is arranged in the valve body 5 and is communicated with the through hole 1 and the upper end of the valve body 5; the cavity comprises an internal thread hole 52 and a cylindrical hole 53, the internal thread hole 52 and the cylindrical hole 53 are communicated up and down and are coaxial, the internal thread hole 52 is positioned at the upper half part and is communicated with the outside of the upper end of the valve body 5, the cylindrical hole 53 is positioned at the lower half part and is communicated with the through hole 1, and the cylindrical hole 53 is precisely machined.
The adjusting shaft 2 is connected in the cavity of the valve body 5 through threads, and the lower end part of the adjusting shaft 2 extends into the through hole 1. Referring to fig. 4, the adjusting shaft 2 includes a hexagonal head 21, a threaded rod 22 and a cylinder 23 connected in sequence from top to bottom; the threaded rod 22 is matched and connected with an internal threaded hole 52 of the valve body 5, the cylinder 23 is subjected to finish machining and matched with a cylindrical hole 53 of the valve body 5, and an annular sealing ring groove 24 is formed in the cylinder 23; the hexagonal head 21 is used for rotating the adjusting shaft 2 through a tool, and the adjusting shaft 2 is lifted and lowered by means of threads, so that the adjusting shaft 2 can be adjusted up and down in the cavity.
Referring to fig. 2, the seal ring 4 is embedded in the seal ring groove 24 of the adjusting shaft 2 and is sandwiched between the adjusting shaft 2 and the inner wall of the cylindrical hole 53. The cylinder 23 of the adjusting shaft 2, the cylindrical hole 53 of the valve body 5 and the sealing ring 4 are in close contact, so that a sealing effect is achieved, lubricating oil liquid passing through the orifice plate cannot leak from the valve body 5, and the sealing effect can achieve the system pressure sealing capacity within 10bar, in other words, the pressure resistance capacity of the orifice plate is within 10 bar.
The internal thread hole 52 of the valve body 5 and the thread of the threaded rod 22 of the adjusting shaft 2 are made of pipe threads (G), and may be metric threads (M).
Referring to fig. 1, the two locking nuts 3 are screwed on the threaded rod 22 of the adjusting shaft 2 outside the valve body 5, and after the adjusting shaft 2 is adjusted, the two locking nuts 3 lock the adjusting shaft 2 stably in a double-nut locking manner.
The working principle of the utility model is as follows:
the hexagonal head 21 is pulled to rotate the adjusting shaft 2, the adjusting shaft 2 ascends or descends under the action of the threads, and the position of the lower end part of the adjusting shaft 2 extending into the through hole 1 of the valve body 5 is changed, so that the throttling area of the through hole 1, namely the sectional area through which lubricating oil can pass, is changed, the purpose of adjusting the flow of the throttling orifice plate is achieved, and the function of adjusting the flow of the throttling orifice plate is achieved. When the adjusting shaft 2 is adjusted to a certain target position, the adjusting shaft 2 is locked at the position through the locking nut 3, so that the throttling area is stable and unchanged, and the continuous and stable throttling performance of the throttling orifice plate is ensured. The limit position of the adjusting shaft 2 can realize that the adjusting area of the throttling hole is from 0 to the maximum of the full section, namely, the adjusting shaft can be adjusted between the range of the state of completely cutting off the whole pipeline system and the state of completely communicating the whole inner diameter of the whole pipeline (the whole pipeline can be considered to have no influence), and the specific size of the throttling area to be realized is determined according to the actual working condition of the supercharger.
Claims (9)
1. The utility model provides a flow adjustable orifice plate, connects in diesel engine booster's lubricating oil pipeline which characterized in that: the orifice plate comprises a valve body, an adjusting shaft and a sealing ring, wherein a through hole penetrating through the valve body is formed in the center of the valve body and used for circulating lubricating oil of the supercharger, a cavity communicated with the through hole and the upper end of the valve body is formed in the valve body, the adjusting shaft is connected into the cavity through threads, the lower end of the adjusting shaft extends into the through hole, the sealing ring is sleeved on the periphery of the adjusting shaft and clamped between the adjusting shaft and the inner wall of the cavity, and the adjusting shaft is rotated to adjust the position of the lower end of the adjusting shaft extending into the through hole so as to change the sectional area of the lubricating oil passing through the orifice plate.
2. The flow adjustable orifice plate of claim 1, wherein: the side face of the valve body is provided with a plurality of bolt holes used for being connected with the lubricating oil pipeline, and the number, the size and the hole center distance of the bolt holes are determined according to the flange structure of the lubricating oil pipeline.
3. The flow adjustable orifice plate of claim 1, wherein: the cavity of the valve body comprises an internal thread hole and a cylindrical hole which are communicated with each other from top to bottom and are coaxial, the internal thread hole is communicated with the outside of the valve body, and the cylindrical hole is communicated with the through hole.
4. The flow adjustable orifice plate of claim 3, wherein: the adjusting shaft comprises a hexagonal head, a threaded rod and a cylinder which are sequentially connected from top to bottom, the threaded rod is matched and connected with the inner threaded hole of the valve body, the cylinder is matched with the cylindrical hole of the valve body, an annular sealing ring groove is formed in the cylinder, and the sealing ring is embedded in the sealing ring groove.
5. The flow adjustable orifice plate of claim 4, wherein: the internal thread hole of the valve body and the thread of the threaded rod of the adjusting shaft are made of pipe threads or metric threads.
6. The flow adjustable orifice plate of claim 1, wherein: the orifice plate also comprises two locking nuts which are screwed on the threaded rod of the adjusting shaft outside the valve body.
7. The flow adjustable orifice plate of claim 1, wherein: the aperture of the through hole of the valve body is equal to or smaller than the inner diameter of the lubricating oil pipeline.
8. The flow adjustable orifice plate of claim 1, wherein: the cross-sectional area of the lubricating oil passing through the throttling orifice plate is changed from 0 to full aperture.
9. The flow adjustable orifice plate of claim 1, wherein: the pressure resistance of the orifice plate is within 10 bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921665752.4U CN210889109U (en) | 2019-10-08 | 2019-10-08 | Flow-adjustable throttling orifice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921665752.4U CN210889109U (en) | 2019-10-08 | 2019-10-08 | Flow-adjustable throttling orifice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210889109U true CN210889109U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921665752.4U Active CN210889109U (en) | 2019-10-08 | 2019-10-08 | Flow-adjustable throttling orifice |
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| CN (1) | CN210889109U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061338A (en) * | 2020-08-07 | 2020-12-11 | 中船澄西船舶修造有限公司 | Oil-mixing bulkhead |
-
2019
- 2019-10-08 CN CN201921665752.4U patent/CN210889109U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061338A (en) * | 2020-08-07 | 2020-12-11 | 中船澄西船舶修造有限公司 | Oil-mixing bulkhead |
| CN112061338B (en) * | 2020-08-07 | 2021-12-07 | 中船澄西船舶修造有限公司 | Oil-mixing bulkhead |
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