CN215806420U - Space flow labyrinth valve cage structure - Google Patents
Space flow labyrinth valve cage structure Download PDFInfo
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- CN215806420U CN215806420U CN202121289912.7U CN202121289912U CN215806420U CN 215806420 U CN215806420 U CN 215806420U CN 202121289912 U CN202121289912 U CN 202121289912U CN 215806420 U CN215806420 U CN 215806420U
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Abstract
The utility model discloses a space flow labyrinth valve cage structure, which comprises a lower pressing plate, an upper pressing plate and a space flow labyrinth component, wherein the space flow labyrinth component comprises a first group of space flow labyrinth parts and a second group of space flow labyrinth parts, the first group of space flow labyrinth parts comprises two first space flow labyrinth discs and two second space flow labyrinth discs, the first space flow labyrinth discs are provided with a plurality of first through holes, the second space flow labyrinth discs are provided with a plurality of second through holes, the second group of space flow labyrinth parts comprises two third space flow labyrinth discs and two fourth space flow labyrinth discs, the third space flow labyrinth discs are provided with a plurality of third through holes, the fourth space flow labyrinth discs are provided with a plurality of fourth through holes and a plurality of first through holes, a plurality of flow channels are formed in the plurality of second through holes, the plurality of third through holes and the plurality of fourth through holes. The purpose of reducing pressure in stages is achieved, so that the pressure of a flowing medium is effectively reduced, and the stability of the flow capacity of the valve is guaranteed.
Description
Technical Field
The utility model relates to a space flow labyrinth valve cage structure.
Background
The KJ-100 space flow labyrinth valve cage structure is developed and designed aiming at the working conditions that the medium pressure is high, the flow speed is high, the medium is easy to block due to dirt or the Joule-Thomson effect (hereinafter referred to as J-T effect) is easy to occur, and can be applied to the application working conditions of natural gas purification, propane refrigeration, LNG production and the like.
Many regulating valves in the prior art cannot ensure stable operation of the valve, no vibration and blockage phenomena and cannot ensure the service life of the valve under the working conditions of high pressure difference, high flow rate, easy blockage of dirty media or easy occurrence of Joule-Thomson effect. In the actual production and application process, the following problems are caused:
1. when a non-spatial flow labyrinth valve cage structure is adopted, once the J-T effect occurs, the temperature is greatly reduced to cause the thermal stress effect of the valve internals.
2. When a non-space flow labyrinth valve cage structure is adopted, impurities or particles are easy to accumulate in a small flow passage or a small flow passage of the valve cage, and the phenomenon that the valve has insufficient flow capacity or even no flow exists after a long time.
3. When a non-space flow labyrinth valve cage structure is adopted, the valve core valve cage is easy to be damaged in case of the two conditions under high differential pressure and high flow velocity.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art, and provides a space flow labyrinth valve cage structure.
The utility model is realized by the following technical scheme:
a space flow labyrinth valve cage structure comprises a lower pressing sheet, an upper pressing sheet and a space flow labyrinth component, wherein the space flow labyrinth component comprises a first group of space flow labyrinth parts and a second group of space flow labyrinth parts, the lower pressing sheet, the first group of space flow labyrinth parts, the second group of space flow labyrinth parts and the upper pressing sheet are sequentially stacked from bottom to top, the first group of space flow labyrinth parts comprises two first space flow labyrinth discs and two second space flow labyrinth discs, the two first space flow labyrinth discs and the two second space flow labyrinth discs are stacked in a staggered mode, the first space flow labyrinth discs are provided with a plurality of first through holes, the second space flow labyrinth discs are provided with a plurality of second through holes, the second group of space flow labyrinth parts comprises two third space flow labyrinth discs and two fourth space flow labyrinth discs, two third space flow maze disc and two crisscross the setting of piling up between the fourth space flow maze disc, third space flow maze disc has a plurality of third through-hole, fourth space flow maze disc has a plurality of fourth through-hole, a plurality of first through-hole, a plurality of second through-hole, a plurality of third through-hole and a plurality of be formed with a plurality of runner between the fourth through-hole.
Furthermore, a plurality of first through-hole be cyclic annular interval distribution in on the first space flows the maze disk, a plurality of the second through-hole be cyclic annular interval distribution in on the second space flows the maze disk, a plurality of the third through-hole be cyclic annular interval distribution in on the third space flows the maze disk, a plurality of the fourth through-hole be cyclic annular interval distribution in on the fourth space flows the maze disk.
Furthermore, the first through holes and the second through holes are arranged in a staggered mode.
Furthermore, the third through holes and the fourth through holes are arranged in a staggered mode.
Further, the first spatial flow labyrinth plate and the adjacent second spatial flow labyrinth plate are welded to each other.
Further, the third spatial flow labyrinth plate and the adjacent fourth spatial flow labyrinth plate are welded to each other.
Further, the space flow labyrinth assembly is welded to the lower pressure plate and the upper pressure plate.
The utility model has the beneficial effects that:
according to the space flow labyrinth valve cage structure, the purpose of step pressure reduction is achieved through the plurality of flow channels of the space flow labyrinth component, so that the pressure of a flowing medium is effectively reduced, the scouring in the valve is reduced, the service life of the valve is prolonged, and the stability of the flow capacity of the valve is ensured.
Drawings
Fig. 1 is a schematic perspective view of a spatial flow labyrinth cage structure according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a spatial flow labyrinth cage structure according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of the internal structure of a spatial flow labyrinth cage structure according to an embodiment of the utility model.
Description of reference numerals:
lower pressing sheet 1
Space flow maze assembly 3
First space flow labyrinth disk 31
First via 311
Second space flow labyrinth disk 32
Second through hole 321
Third space flow labyrinth disk 33
Third via hole 331
Fourth space flow labyrinth plate 34
Fourth via 341
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the utility model may be practiced.
As shown in fig. 1, 2 and 3, the present embodiment discloses a space flow labyrinth valve cage structure, which includes a lower pressure plate 1, an upper pressure plate 2 and a space flow labyrinth assembly 3, wherein the space flow labyrinth assembly 3 includes a first group of space flow labyrinth parts and a second group of space flow labyrinth parts, the lower pressure plate 1, the first group of space flow labyrinth parts, the second group of space flow labyrinth parts and the upper pressure plate 2 are sequentially stacked from bottom to top, the first group of space flow labyrinth parts includes two first space flow labyrinth plates 31 and two second space flow labyrinth plates 32, the two first space flow labyrinth plates 31 and the two second space flow labyrinth plates 32 are alternately stacked, the first space flow labyrinth plates 31 have a plurality of first through holes 311, the second space flow labyrinth plates 32 have a plurality of second through holes 321, the second group of space flow labyrinth parts includes two third space flow labyrinth plates 33 and two fourth space flow labyrinth plates 34, the two third space flow labyrinth plates 33 and the two fourth space flow labyrinth plates 34 are alternately stacked, the third space flow labyrinth plates 33 are provided with a plurality of third through holes 331, the fourth space flow labyrinth plates 34 are provided with a plurality of fourth through holes 341, and a plurality of flow channels are formed among the plurality of first through holes 311, the plurality of second through holes 321, the plurality of third through holes 331 and the plurality of fourth through holes 341.
Through being formed with a plurality of runner between a plurality of first through-hole 311, a plurality of second through-hole 321, a plurality of third through-hole 331 and a plurality of fourth through-hole 341, the purpose of hierarchical decompression is realized to a plurality of runner of space flow maze subassembly 3, every turn will all effectively reduce the pressure of flowing medium, thus, even the runner of a direction blocks up, also can guarantee that other all directions have the fluid incessantly to flow through and wash away and block up the runner, finally take away the jam, so not only reduced the washing away in the valve, the life of valve has been improved, the stability of valve circulation ability has been guaranteed. Meanwhile, compared with the prior art, the space flow labyrinth valve cage structure can eliminate the cavitation phenomenon caused by that the pressure is suddenly reduced to be lower than the saturated vapor pressure after throttling, achieves stable pressure reduction of medium resistance, has a brand-new pressure reduction and throttling principle, is suitable for the working condition that the medium is dirty or the J-T effect occurs, and can also provide a comprehensive system control solution for a plurality of different application fields.
The first through holes 311 are annularly and alternately distributed on the first space flow labyrinth plate 31, the second through holes 321 are annularly and alternately distributed on the second space flow labyrinth plate 32, the third through holes 331 are annularly and alternately distributed on the third space flow labyrinth plate 33, and the fourth through holes 341 are annularly and alternately distributed on the fourth space flow labyrinth plate 34.
The first through holes 311 and the second through holes 321 are arranged alternately. The third through holes 331 and the fourth through holes 341 are staggered.
The lower pressing plate 1, the space flow labyrinth component 3 and the upper pressing plate 2 are stacked from bottom to top and provided with a medium inlet in the middle area, medium inlet pressure enters from an inner side inlet of the space flow labyrinth valve cage structure and is reduced in pressure through multi-stage axial and radial turning, and finally, the outlet is medium outlet pressure reduced in a multi-step-by-step mode. In the use process, the pressure is reduced from the pressure at the medium inlet to the pressure at the medium outlet, the pressure must be reduced step by step, the cavitation phenomenon is easy to occur, and the pressure is gradually reduced when the medium turns each time. When the static pressure is smaller than the saturated vapor pressure of the medium, cavitation can occur, the Bernoulli equation is that the sum of potential energy, static pressure energy and kinetic energy of a certain point of the medium is constant, so that under the condition that the potential energy is the same, cavitation in fluid motion can be found by observing the flow velocity sudden change condition in the flow velocity vector diagram.
The space flow labyrinth valve cage structure of this embodiment, according to the harsh operating mode requirement, the structure of a plurality of runner of difference and through-hole that different operating mode unique designs correspond, along with the removal of case, a plurality of runner orbit in the space flow labyrinth subassembly 3 is flowed through to the medium, makes the fluid circuitous through to step-by-step steps the step-down, the control flow, from the energy of the medium flow in-process of principle control, thereby solved the washing away of medium high pressure, high velocity of flow to valve internals in essence.
Through the multilayer space flow labyrinth plate, a plurality of flow passages are reasonably bent, so that fluid can flow axially and radially in the valve cage. Therefore, even if the flow channel in one direction is blocked, the flow channel in other directions can be ensured to continuously flow through and flush the blocked flow channel, and finally the blocking object is taken away, so that the flushing of the valve internal part is reduced, the service life of the valve is prolonged, and the stability of the flow capacity of the valve is ensured.
In the embodiment, the space flow labyrinth assembly 3 disperses the fluid into a plurality of axial and radial branches to reduce the quality and energy level as much as possible, each fluid channel is composed of axial and radial turns and forms a space flow labyrinth flow channel, even if the flow channel in one direction is blocked, the fluid in other directions can be ensured to continuously flow through and flush the blocked flow channel, and finally, the blockage is taken away, so that the flushing of the valve internals is reduced, the service life of the valve is prolonged, and the stability of the flow capacity of the valve is ensured. In the process, the purpose of staged depressurization is achieved by a specific number of axial and radial turns, each of which reduces the pressure of the flowing medium, thereby achieving a truly staged depressurization.
According to the working condition requirements of a user system such as pressure difference, flow and regulation characteristics, a plurality of space flow labyrinth disks with different pressure reduction stages, different throttling hole quantities and other parameters are manufactured into a space flow labyrinth component 3, so that the flow speed is guaranteed to be controlled all the time, and the flow can be precisely controlled, so that the optimal performance can be obtained. Wherein, different flow channel numbers can be selected according to different working conditions.
The first spatial flow labyrinth disk 31 and the adjacent second spatial flow labyrinth disk 32 are welded to each other. The third spatial flow labyrinth disk 33 and the adjacent fourth spatial flow labyrinth disk 34 are welded to each other. Effectively strengthened the self structural connection intensity of space flow maze subassembly 3, stability is higher.
The space flow labyrinth assembly 3 is welded to the lower and upper press plates 1 and 2. Effectively strengthened the structural connection intensity of space flow maze subassembly 3 and preforming 1 and last preforming 2 down, improved the stability of space flow maze valve cage structure greatly.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (7)
1. A space flow labyrinth valve cage structure is characterized by comprising a lower pressing plate, an upper pressing plate and a space flow labyrinth component, wherein the space flow labyrinth component comprises a first group of space flow labyrinth parts and a second group of space flow labyrinth parts, the lower pressing plate, the first group of space flow labyrinth parts, the second group of space flow labyrinth parts and the upper pressing plate are sequentially stacked from bottom to top, the first group of space flow labyrinth parts comprises two first space flow labyrinth discs and two second space flow labyrinth discs, the two first space flow labyrinth discs and the two second space flow labyrinth discs are staggered and stacked, the first space flow labyrinth discs are provided with a plurality of first through holes, the second space flow labyrinth discs are provided with a plurality of second through holes, the second group of disc space flow labyrinth parts comprises two third space flow labyrinth discs and two fourth space flow labs, two third space flow maze disc and two crisscross the setting of piling up between the fourth space flow maze disc, third space flow maze disc has a plurality of third through-hole, fourth space flow maze disc has a plurality of fourth through-hole, a plurality of first through-hole, a plurality of second through-hole, a plurality of third through-hole and a plurality of be formed with a plurality of runner between the fourth through-hole.
2. The spatial flow labyrinth cage structure as recited in claim 1, wherein a plurality of said first through holes are annularly and intermittently distributed on said first spatial flow labyrinth disk, a plurality of said second through holes are annularly and intermittently distributed on said second spatial flow labyrinth disk, a plurality of said third through holes are annularly and intermittently distributed on said third spatial flow labyrinth disk, and a plurality of said fourth through holes are annularly and intermittently distributed on said fourth spatial flow labyrinth disk.
3. The spatial flow labyrinth cage structure as recited in claim 2, wherein a plurality of said first through-holes are interleaved with a plurality of said second through-holes.
4. The spatial flow labyrinth cage structure as recited in claim 2, wherein a plurality of said third through-holes are interleaved with a plurality of said fourth through-holes.
5. The spatial flow labyrinth cage structure as recited in claim 1, wherein the first spatial flow labyrinth disc is welded to the adjacent second spatial flow labyrinth disc.
6. The spatial flow labyrinth cage structure as recited in claim 1, wherein the third spatial flow labyrinth disc is welded to the adjacent fourth spatial flow labyrinth disc.
7. The spatial flow labyrinth cage structure as recited in claim 1, wherein the spatial flow labyrinth assembly is welded to the lower pressure plate and the upper pressure plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289912.7U CN215806420U (en) | 2021-06-09 | 2021-06-09 | Space flow labyrinth valve cage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121289912.7U CN215806420U (en) | 2021-06-09 | 2021-06-09 | Space flow labyrinth valve cage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215806420U true CN215806420U (en) | 2022-02-11 |
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ID=80175822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121289912.7U Active CN215806420U (en) | 2021-06-09 | 2021-06-09 | Space flow labyrinth valve cage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215806420U (en) |
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2021
- 2021-06-09 CN CN202121289912.7U patent/CN215806420U/en active Active
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