CN214577669U - Spiral vortex resistance energy dissipation structure and valve plate with same - Google Patents
Spiral vortex resistance energy dissipation structure and valve plate with same Download PDFInfo
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- CN214577669U CN214577669U CN202120402585.5U CN202120402585U CN214577669U CN 214577669 U CN214577669 U CN 214577669U CN 202120402585 U CN202120402585 U CN 202120402585U CN 214577669 U CN214577669 U CN 214577669U
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Abstract
The utility model belongs to the technical field of fluid buffer equipment, especially, relate to a spiral vortex hinders energy dissipation structure and has valve plate of this structure. The utility model discloses, too complicated to energy dissipation structure among the prior art, lead to the higher problem of processing cost, provide a spiral vortex resistance energy dissipation structure and have valve plate of this structure, including main entrance and vortex resistance branch passage, the both ends that vortex resistance branch passage was equipped with inlet channel and liquid outlet channel respectively, circulation direction in the main entrance is vector a, circulation direction in the liquid outlet channel is vector b, vector an is greater than 90 degrees with vector b's contained angle. The utility model discloses liquid medium is because the contained angle of flow direction surpasss 90 degrees at the intersection of liquid outlet channel and main entrance, so can hinder the normal flow of liquid in the main entrance, forms the vortex, makes the energy reduce, plays the effect of energy dissipation.
Description
Technical Field
The utility model belongs to the technical field of fluid buffer structure, especially, relate to a spiral vortex hinders energy dissipation structure and has valve plate of the hydraulic pressure plunger pump/motor of this structure.
Background
In fluid machines that operate on fluid media, such as hydraulic pumps, motors, valves, there are high-pressure and low-pressure zones, which exhibit a slight compressibility due to the presence of certain gases dissolved in the fluid medium or the presence of very small bubbles. When the high-pressure area and the low-pressure area are communicated, the fluid medium in the low-pressure area is compressed under the action of high pressure, and the fluid medium flows from the high-pressure area to the low-pressure area. Despite the extremely small flow rate of the fluid medium, a jet with an extremely high velocity is formed in an extreme time, for example, 1 millisecond, and after pressure equalization, the jet ends. Jet flow is the main cause of cavitation and noise.
When the fluid meets an obstacle, vortex flow is generated around the obstacle, and when the fluid flows, internal friction is overcome, and when turbulent flow is overcome, fluid particles collide with each other and exchange momentum, so that energy loss is generated, and certain pressure drop is represented. The resistance in the fluid channel can dissipate a portion of the kinetic energy of the fluid. Converting a portion of the fluid kinetic energy into thermal energy helps to reduce vibrations and noise in the fluid machine due to the fluid kinetic energy. There are also prior art solutions that utilize this principle to reduce cavitation and noise.
For example, the chinese utility model discloses an energy dissipation structure capable of controlling the fluid medium to jet from a high pressure region to a low pressure region [ application No.: 202020281217.5], the utility model discloses a set up on the main structure body, just the main structure body include static high-pressure area and the low-pressure area that can move towards the high-pressure area, this structure is including setting up the runner in the high-pressure area, just the runner in have and be used for retarding the medium and/or make the medium make fluid energy obtain the energy dissipation structure that dissipates when the runner flows, when the low-pressure area moves and communicates with the high-pressure area, because the jet current is produced in the twinkling of an eye to the pressure differential, the energy dissipation structure in the runner plays the effect of dissipating fluid energy.
The utility model discloses a although the patent has balanced pressure differential, reduces pressure pulsation, reduces the effect of working noise, but its structure is too complicated, leads to the processing cost higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide a spiral vortex hinders energy dissipation structure that can alleviate jet impact and simple structure.
Another object of the present invention is to solve the above problems, and to provide a port plate with a spiral vortex-resistance energy dissipation structure that can alleviate the impact of the jet flow and has a simple structure.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a spiral vortex resistance energy dissipation structure, includes the main entrance of one end intercommunication high-pressure area other end intercommunication low-pressure area, still includes at least one vortex resistance branch passageway of connecting in main entrance one side, the both ends of vortex resistance branch passageway are equipped with inlet channel and liquid outlet channel respectively, inlet channel and liquid outlet channel all are linked together with the main entrance, and in inlet channel and the liquid outlet channel on same vortex resistance branch passageway, inlet channel is more close to the high-pressure area than liquid outlet channel, the circulation direction in the main entrance is vector a, the circulation direction in the liquid outlet channel is vector b, vector an is greater than 90 degrees with vector b's contained angle.
In the above spiral vortex energy dissipation structure, the included angle between the vector a and the vector b is 135-165 degrees.
In the above spiral vortex resistance energy dissipation structure, the flow direction in the liquid inlet channel is a vector c, and an included angle between the vector a and the vector c is smaller than 90 degrees.
In the spiral vortex resistance energy dissipation structure, the included angle between the vector a and the vector c is 30-60 degrees.
In the above spiral vortex resistance energy dissipation structure, the vortex resistance branch channels are provided with a plurality of branch channels, and each branch channel is connected to the same side of the main channel.
In the above spiral vortex resistance energy dissipation structure, the inner surface of the vortex resistance branch channel may be a smooth curved surface, or an inner surface formed by splicing multiple surface pieces.
The spiral vortex resistance energy dissipation structure is arranged on the valve plate.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses liquid medium is because the contained angle of flow direction surpasss 90 degrees at the intersection of liquid outlet channel and main entrance, so can hinder the normal flow of liquid in the main entrance, forms the vortex, makes the energy reduce, plays the effect of energy dissipation.
2. The utility model discloses an integral channel sets up comparatively simply, is convenient for use this passageway to the valve plate in, the processing cost is low, and realistic meaning is strong.
3. The cross section of the liquid channel of the utility model is not as thin as that of the damping channel, the wider channel can still exert better retardation effect on the fluid, and the channel is easier to process.
Drawings
FIG. 1 is a schematic view of the structure of the present invention applied to the surface of a cylinder;
FIG. 2 is a schematic view of the fluid flow of the present invention;
fig. 3 is a schematic structural view of the port plate of the present invention;
FIG. 4 is a schematic illustration of the spiral vortex resistance before it occurs;
FIG. 5 is a schematic view of the cylinder bore after movement such that spiral vortex resistance occurs;
in the figure: the vortex-resistance type vortex-resistance liquid distributor comprises a main channel 1, a vortex-resistance branch channel 2, a liquid inlet channel 3, a liquid outlet channel 4, a cylinder 100, a valve plate 200, a first area 300, a second area 400 and a third area 500.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
The embodiment provides a spiral vortex resistance energy dissipation structure, combines fig. 1 and fig. 2 to show, including main entrance 1 of one end intercommunication high-pressure area other end intercommunication low-pressure area, still include at least one vortex resistance branch channel 2 of connecting in main entrance 1 one side, vortex resistance branch channel 2's both ends are equipped with inlet channel 3 and liquid outlet channel 4 respectively, inlet channel 3 and liquid outlet channel 4 all are linked together with main entrance 1, in inlet channel 3 and the liquid outlet channel 4 on same vortex resistance branch channel 2, inlet channel 3 is more close to the high-pressure area than liquid outlet channel 4, the flow direction in the main entrance 1 is vector a, flow direction in the liquid outlet channel 4 is vector b, vector a is greater than 90 degrees with vector b's contained angle.
The utility model discloses, during the use, the high pressure liquid medium that is located high nip enters main entrance 1 from main entrance 1's one end in, and at the in-process that flows in main entrance 1, partial liquid medium passes through inlet channel 3 and flows into vortex resistance branch passage 2 to finally converge main entrance 1 again through outlet channel 4. Referring to fig. 4 and 5, the first area 300 is a high pressure area, the second area 400 is a low pressure area, and the third area 500 in fig. 4 is also a low pressure area, and as the cylinder bore moves, for example, to the state shown in fig. 5, the first area 300 and the third area 500 communicate with each other through the cylinder 100 having the spiral vortex energy dissipation structure on the surface, and the high pressure liquid medium enters the third area 500 through the spiral vortex energy dissipation structure, so that the third area 500 slowly rises to a high pressure. Because the included angle between the vector a and the vector b is larger than 90 degrees, the included angle of the flowing direction of the liquid medium at the intersection of the liquid outlet channel 4 and the main channel 1 exceeds 90 degrees, so that the normal flowing of the liquid in the main channel 1 can be blocked, a vortex is formed, the energy is reduced, and the energy dissipation effect is achieved. In addition, after the structure is adopted, the sectional area of the liquid channel is not required to be as thin as that of the damping channel, the wider channel can still exert better retardation effect on the fluid, and the channel is easier to process.
Preferably, the included angle between the vector a and the vector b is 135-165 degrees. Within this range of angles, there is a better cushioning effect for energy dissipation.
As shown in fig. 1, the flowing direction in the liquid inlet channel 3 is a vector c, and the included angle between the vector a and the vector c is smaller than 90 degrees. So that the liquid medium in the main passage 1 can flow into the vortex-resistance branch passage 2 through the liquid inlet passage 3.
Preferably, the included angle between the vector a and the vector c is 30-60 degrees. In this angular range, the liquid medium in the main channel 1 can better enter the liquid inlet channel 3.
As shown in fig. 1, there are several vortex-resistance branch channels 2, and each vortex-resistance branch channel 2 is connected to the same side of the main channel 1, for example, there may be two vortex-resistance branch channels 2. The plurality of vortex resistance branch passages 2 form a series connection relation, and the liquid medium sequentially passes through each vortex resistance branch passage 2 to form multi-stage vortex buffering.
Preferably, the inner surface of the vortex-resistance branch passage 2 is circular arc-shaped. The circular arc-shaped inner surface facilitates the flow of the liquid medium. The inner surface can also be composed of a plurality of planes or curved surfaces which are connected in sequence.
Example 2
The present embodiment provides a port plate, and the port plate 200 is provided with the spiral vortex resistance energy dissipation structure described in embodiment 1. With reference to fig. 1-3, when the port plate is used, the high-pressure area and the low-pressure area are communicated with each other through the spiral vortex energy dissipation structure, when fluid is sprayed from the high-pressure area to the low-pressure area, the spiral vortex energy dissipation structure obstructs the spraying of the fluid flow, so that part of energy of the spray flow is dissipated, the speed of the spray flow is greatly reduced, the impact of the spray flow is relieved, and the noise generated during the operation of the plunger pump is reduced.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms main channel 1, vortex-resistance branch channel 2, inlet channel 3, outlet channel 4, area one 300, area two 400, area three 500, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (7)
1. A spiral vortex resistance energy dissipation structure comprises a main channel (1) with one end communicated with a high-pressure area and the other end communicated with a low-pressure area, and is characterized in that: still include at least one vortex resistance branch passageway (2) of connecting in main entrance (1) one side, the both ends of vortex resistance branch passageway (2) are equipped with inlet channel (3) and liquid outlet channel (4) respectively, inlet channel (3) and liquid outlet channel (4) all are linked together with main entrance (1), in inlet channel (3) and liquid outlet channel (4) on same vortex resistance branch passageway (2), inlet channel (3) are more close to the high pressure district than liquid outlet channel (4), the circulation direction in main entrance (1) is vector a, the circulation direction in liquid outlet channel (4) is vector b, vector a is greater than 90 degrees with vector b's contained angle.
2. The spiral vortex resistance energy dissipating structure of claim 1, wherein: the included angle between the vector a and the vector b is 135-165 degrees.
3. The spiral vortex resistance energy dissipating structure of claim 1, wherein: the flow direction in the liquid inlet channel (3) is a vector c, and the included angle between the vector a and the vector c is smaller than 90 degrees.
4. The spiral vortex resistance energy dissipating structure of claim 3, wherein: the included angle between the vector a and the vector c is 30-60 degrees.
5. The spiral vortex resistance energy dissipating structure of claim 1, wherein: the vortex resistance branch channels (2) are provided with a plurality of vortex resistance branch channels, and each vortex resistance branch channel (2) is connected to the same side of the main channel (1).
6. The spiral vortex resistance energy dissipating structure of claim 1, wherein: the inner surface of the vortex resistance branch channel (2) is a cambered surface or the inner surface of the vortex resistance branch channel (2) is composed of a plurality of planes or curved surfaces which are connected in sequence.
7. A port plate, characterized by: the thrust plate (200) is provided with a spiral vortex resistance energy dissipation structure according to any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120402585.5U CN214577669U (en) | 2021-02-23 | 2021-02-23 | Spiral vortex resistance energy dissipation structure and valve plate with same |
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| CN202120402585.5U CN214577669U (en) | 2021-02-23 | 2021-02-23 | Spiral vortex resistance energy dissipation structure and valve plate with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901475A (en) * | 2021-02-23 | 2021-06-04 | 浙江赛克思液压有限公司 | Spiral vortex resistance energy dissipation structure and valve plate with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901475A (en) * | 2021-02-23 | 2021-06-04 | 浙江赛克思液压有限公司 | Spiral vortex resistance energy dissipation structure and valve plate with same |
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