CN217653353U - Labyrinth type noise reduction pressure reducing valve - Google Patents
Labyrinth type noise reduction pressure reducing valve Download PDFInfo
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- CN217653353U CN217653353U CN202221433822.5U CN202221433822U CN217653353U CN 217653353 U CN217653353 U CN 217653353U CN 202221433822 U CN202221433822 U CN 202221433822U CN 217653353 U CN217653353 U CN 217653353U
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Abstract
The utility model relates to the technical field of pressure reducing valves, in particular to a labyrinth noise-reducing pressure-reducing valve which comprises a valve body, wherein a volute cavity is arranged in the valve body, one end of the volute cavity is a medium inlet, and the other end of the volute cavity is a medium outlet; the valve cover is fixedly arranged at the upper part of the valve body and is suitable for sealing the valve cover; the valve seat is arranged in the volute cavity; the valve sleeve component is arranged at the upper end of the valve seat, two ends of the valve sleeve component are respectively connected with the valve seat and the valve cover, the valve sleeve component comprises a labyrinth sleeve, and the labyrinth sleeve and the worm-shaped cavity are eccentrically arranged; and the actuating mechanism penetrates through the valve cover and is arranged in the worm-shaped cavity, and the actuating mechanism is suitable for being matched with the valve sleeve component to close the worm-shaped cavity. The center of the labyrinth sleeve deviates from the center of the valve body, and the speed of the fluid can be controlled by the eccentricity, so that the movement speeds of the fluid at the medium outlet tend to be consistent, the formation of vortex is avoided, the inner wall of the outlet of the valve body is prevented from being washed and eroded, and the service lives of the valve and a pipeline connected with the valve are prolonged.
Description
Technical Field
The utility model relates to a relief pressure valve technical field, concretely relates to labyrinth pressure reducing valve of making an uproar falls.
Background
The control valve is one of important parts for regulating and controlling parameters of fluid medium such as pressure, flow, temperature and the like in the industrial production process, and is widely applied to industrial systems such as power stations, petrochemical industry, metallurgy and the like. For example, in high pressure difference occasions of enterprises such as cogeneration and central heating, steam parameters provided by a power plant need to be reduced to appropriate pressure and temperature required by users so as to meet the requirements of the users, fully save and reasonably use heat energy.
Although the traditional labyrinth regulating valve can play a certain role in reducing pressure and reducing noise, the movement speed of a fluid medium at the outlet of the regulating valve is inconsistent due to the defects in the structure, so that a vortex is easily formed to wash and erode the inner wall of the outlet of the valve body and the inner wall of a subsequent pipeline connected with the outlet of the valve body, and further the service lives of the control valve and the pipeline are influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model is very easily formed the vortex at traditional labyrinth governing valve, erodes valve body export inner wall and the follow-up pipeline inner wall defect that links to each other with the valve body export to a relief pressure valve of making an uproar falls in labyrinth is provided.
In order to solve the problem, the utility model provides a relief pressure valve of making an uproar falls in labyrinth, include:
the valve comprises a valve body, wherein a volute cavity is arranged in the valve body, one end of the volute cavity is a medium inlet, and the other end of the volute cavity is a medium outlet;
the valve cover is fixedly arranged at the upper part of the valve body and is suitable for sealing the valve body;
a valve seat disposed within the volute cavity;
the valve sleeve assembly is arranged at the upper end of the valve seat, two ends of the valve sleeve assembly are respectively connected with the valve seat and the valve cover, the valve sleeve assembly comprises a labyrinth sleeve, and the labyrinth sleeve and the worm-shaped cavity are eccentrically arranged;
and the actuating mechanism penetrates through the valve cover and is arranged in the worm-shaped cavity, and the actuating mechanism is suitable for being matched with the valve sleeve component to seal the worm-shaped cavity.
Furthermore, the valve sleeve component further comprises a pressing sleeve, and two ends of the pressing sleeve are respectively connected with the valve cover and the labyrinth sleeve.
Furthermore, the labyrinth sleeve comprises a plurality of labyrinth discs, a top pressing sheet and a bottom supporting sheet which are stacked, the top pressing sheet is arranged at the upper end of the labyrinth disc on the uppermost layer, the bottom supporting sheet is arranged at the lower end of the labyrinth disc on the lowermost layer, the labyrinth discs are connected in a welding mode, the labyrinth discs are connected with the pressing sleeve through the top pressing sheet, and the labyrinth discs are connected with the valve seat through the bottom supporting sheet.
Furthermore, a plurality of labyrinth flow channels are arranged on the surface of the labyrinth disc, and the labyrinth flow channels are used for communicating the inside of the labyrinth sleeve with the outside of the labyrinth sleeve.
Furthermore, one end of the labyrinth flow channel communicated with the inside of the labyrinth sleeve is an inner side end, one end of the labyrinth flow channel communicated with the outside of the labyrinth sleeve is an outer side end, and the flow sectional area of the outer side end is larger than that of the inner side end.
Furthermore, one end of the labyrinth flow channel communicated with the inside of the labyrinth sleeve is an inner side end, one end of the labyrinth flow channel communicated with the outside of the labyrinth sleeve is an outer side end, and the flow sectional area of the outer side end is smaller than that of the inner side end.
Furthermore, the actuating mechanism comprises a valve rod and a valve core, the valve core is arranged at one end of the valve rod, provided with the valve core, penetrates through the valve cover and is arranged in the worm-shaped cavity, and the valve core is suitable for vertically moving up and down along with the valve rod and is matched with a labyrinth disc to close the worm-shaped cavity.
Furthermore, the valve core is abutted against the pressing sleeve, and a sealing ring is arranged between the valve core and the pressing sleeve.
Further, the valve core is provided with a through pressure balance hole, and the pressure balance hole is suitable for balancing the pressure of the upper part and the lower part of the valve core.
Further, a guide sleeve suitable for guiding the valve rod is further arranged in the valve cover.
The utility model has the advantages of it is following:
1. the utility model provides a relief pressure valve of making an uproar falls in labyrinth, include: the valve comprises a valve body, a valve cover, a valve seat, a valve sleeve assembly and an actuating mechanism. A worm-shaped cavity is arranged in the valve body, one end of the worm-shaped cavity is a medium inlet, and the other end of the worm-shaped cavity is a medium outlet; the valve cover is fixedly arranged on the upper part of the valve body and is suitable for sealing the valve body; the valve seat is arranged in the volute cavity; the valve sleeve assembly is arranged at the upper end of the valve seat, two ends of the valve sleeve assembly are respectively connected with the valve seat and the valve cover, the valve sleeve assembly comprises a labyrinth sleeve, and the labyrinth sleeve and the worm-shaped cavity are eccentrically arranged; the actuating mechanism penetrates through the valve cover and is arranged in the worm-shaped cavity, and the actuating mechanism is suitable for being matched with the valve sleeve component to seal the worm-shaped cavity.
The labyrinth type noise reduction pressure reducing valve with the structure has the advantages that the center of the labyrinth sleeve deviates from the center of the valve body, and the fluid speeds in different directions flowing out of or into the labyrinth sleeve can be controlled through the eccentricity, so that the movement speeds of fluid at a medium outlet tend to be consistent, vortex is avoided being formed, the inner wall of the outlet of the valve body is prevented from being washed and eroded, and further, the service life of the valve and the service life of a connecting pipeline of the valve are prolonged.
2. The labyrinth type noise reduction pressure reducing valve with the structure comprises a plurality of labyrinth discs which are arranged in a stacking mode and fixed together, a plurality of bent labyrinth flow channels are arranged on the surfaces of the labyrinth discs, the labyrinth flow channels communicate the inside and the outside of the labyrinth sleeve, so that the fluid motion damping is greatly increased, the flow speed is reduced, the purposes of multistage pressure reduction and effective flow speed control are achieved, further, the noise is greatly reduced, serious adverse effects such as scouring and cavitation of valve internals are reduced, and the service life of the valve is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a labyrinth noise-reducing pressure-reducing valve in embodiment 1 of the present invention;
fig. 2 is a schematic view of an internal structure of a labyrinth noise-reducing pressure-reducing valve in embodiment 1 of the present invention;
FIG. 3 is a schematic view of a labyrinth disk in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a labyrinth disc in embodiment 2 of the present invention;
description of reference numerals:
1. a valve body; 2. a valve cover; 3. a valve seat; 4. a valve housing assembly; 41. a labyrinth sleeve; 411. a labyrinth disc; 4111. a labyrinth flow passage; 412. top tabletting; 413. a bottom support sheet; 42. pressing the sleeve; 5. a valve stem; 6. a valve core; 61. a pressure balance hole; 7. a seal ring; 8. a guide sleeve.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Furthermore, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1 to 3, the present embodiment discloses a labyrinth type noise-reducing and pressure-reducing valve, which includes a valve body 1, a valve cover 2, a valve seat 3, a valve sleeve assembly 4 and an actuator. A worm-shaped cavity is arranged in the valve body 1, one end of the worm-shaped cavity is a medium inlet, the other end of the worm-shaped cavity is a medium outlet, in the figure 1, the left end of the worm-shaped cavity is the medium inlet, and the right end of the worm-shaped cavity is the medium outlet. The valve cover 2 is fixedly arranged on the upper portion of the valve body 1 through bolts, the valve cover 2 is used for sealing the valve body 1, and a valve cover gasket is arranged between the valve cover 2 and the valve body 1. The valve seat 3 is arranged in the volute cavity, a valve seat gasket is arranged between the valve seat 3 and the valve body 1, and the valve seat 3 is used for bearing the valve sleeve component 4. The valve sleeve assembly 4 is arranged at the upper end of the valve seat 3, two ends of the valve sleeve assembly 4 are respectively connected with the valve seat 3 and the valve cover 2, the valve sleeve assembly 4 comprises a labyrinth sleeve 41, and the labyrinth sleeve 41 and the worm cavity are eccentrically arranged. The actuating mechanism penetrates through the valve cover 2 and is arranged in the worm-shaped cavity, and the actuating mechanism can be matched with the valve sleeve component 4 to seal the worm-shaped cavity.
Specifically, as shown in FIG. 2, the center O of the labyrinth sleeve 41 2 Deviated from the center O of the valve body 1 1 Center O of labyrinth sleeve 41 2 Away from the center O of the valve body 1 in the direction away from the medium outlet 1 The speed relationship of each passage of the valve body 1 is V1>V2>V3, therefore, when each path of fluid reaches the medium outlet, the movement speed of each path of fluid is basically consistent, thereby avoiding generating vortex, avoiding scouring and eroding the inner wall of the medium outlet, and prolonging the service life of the valve and the pipeline connected with the valve.
It should be noted that it is a conventional technical means in the art to control the fluid speed in each direction flowing out from the inside of the labyrinth sleeve 41 by designing the eccentricity, for example, in the case of a constant flow rate, the narrower the passage of the valve body 1 formed between the labyrinth sleeve 41 and the valve body 1, the higher the flow speed; conversely, the wider the passage of the valve body 1, the lower the flow rate.
Preferably, in this embodiment, the fluid medium is a gas.
Further, as shown in fig. 1, the valve housing assembly 4 further includes a pressing sleeve 42, and both ends of the pressing sleeve 42 are respectively connected with the valve cover 2 and the labyrinth sleeve 41.
Specifically, the labyrinth sleeve 41 includes a plurality of labyrinth disks 411, a top pressing plate 412 and a bottom supporting plate 413 which are stacked. The top plate 412 is disposed at the upper end of the uppermost labyrinth disc 411, the bottom holder 413 is disposed at the lower end of the lowermost labyrinth disc 411, and the top plate 412 and the bottom holder 413 may be fixed to fix the labyrinth discs 411. The labyrinth disc 411 is of a circular structure, the labyrinth discs 411 are welded and connected, preferably, the labyrinth discs 411 are fixed by vacuum diffusion welding, so that the labyrinth sleeve 41 has high quality stability and can bear high temperature and high pressure. The labyrinth disc 411 is connected to the pressing sleeve 42 via a top pressing piece 412, and the labyrinth disc 411 is connected to the valve seat 3 via a bottom supporting piece 413.
Preferably, in the present embodiment, the labyrinth sleeve 41 includes fifteen labyrinth plates 411. In alternative embodiments, the labyrinth sleeve 41 may include other numbers of labyrinth discs 411, such as fourteen or sixteen.
Further, the surface of the labyrinth disk 411 is provided with a plurality of labyrinth flow passages 4111, and the labyrinth flow passages 4111 communicate the inside of the labyrinth sleeve 41 with the outside of the labyrinth sleeve 41. In fig. 3, one end of the labyrinth flow path 4111 communicating with the inside of the labyrinth sleeve 41 is an inner end, one end of the labyrinth flow path 4111 communicating with the outside of the labyrinth sleeve 41 is an outer end, and a flow cross-sectional area of the outer end is larger than that of the inner end. The labyrinth flow passage 4111 includes multiple stages of grooves which are sequentially communicated, and the flow cross-sectional area of the grooves is gradually increased from inside to outside. Since the high pressure difference gas is a compressible fluid and its volume rapidly expands after pressure reduction in the labyrinth flow passage 4111, the flow cross-sectional area of the flow passage at the outlet is required to be larger than that at the inlet, and the high pressure difference gas flows out of the labyrinth sleeve 41 through the inside of the labyrinth sleeve 41 as shown by an arrow in fig. 3, thereby ensuring the pressure reduction effect of the gas medium. It should be noted that, by designing the number of the labyrinth discs 411, and the labyrinth path specification and the number of the groove flow paths of the labyrinth flow path 4111 on each labyrinth disc 411, it is conceivable for those skilled in the art to control the flow capacity of the labyrinth sleeve 41, and it is not described here much.
Preferably, in this embodiment, sixteen labyrinth flow passages 4111 are disposed on the surface of the labyrinth disc 411. In other embodiments, the surface of the labyrinth disc 411 may be provided with fifteen or seventeen labyrinth flow passages 4111.
Specifically, as shown in fig. 1, the actuator includes a valve stem 5 and a valve core 6. The valve core 6 is arranged at one end of the valve rod 5, which is provided with the valve core 6, penetrates through the valve cover 2 and is arranged in the volute cavity, and the other end of the valve rod 5 is arranged outside the valve cover 2 and is connected with a power output device, preferably, the power output device is a motor. The valve rod 5 can be controlled by a motor to move vertically up and down, and the valve core 6 can move along with the valve rod 5 and is matched with the labyrinth disc 411 to close the volute cavity.
Further, a guide sleeve 8 for guiding the valve rod 5 is arranged in the valve cover 2. The guide sleeve 8 can ensure the valve rod 5 to move stably.
Furthermore, the valve core 6 is abutted against the pressing sleeve 42, the sealing ring 7 is arranged between the valve core 6 and the pressing sleeve 42, and when the worm-shaped cavity is in a closed state, fluid on the upper cavity of the valve core 6 is prevented from leaking into the medium outlet, so that the worm-shaped cavity is ensured to be reliably closed.
Further, the valve core 6 is provided with a through pressure balance hole 61, and the pressure balance hole 61 can balance the pressure of the upper part and the lower part of the valve core 6, so that the opening and closing force is small, and the operation is stable.
Example 2
Compared with the labyrinth noise reduction pressure reducing valve of the first embodiment, the labyrinth noise reduction pressure reducing valve of the first embodiment has the same structure, and the difference is that:
in this embodiment, the fluid medium is a liquid, and the medium flow direction is opposite to that of the first embodiment, in fig. 1, the right side of the volute cavity is a medium inlet, and the left side of the volute cavity is a medium outlet.
Further, as shown in fig. 4, one end of the labyrinth flow passage 4111, which is communicated with the inside of the labyrinth sleeve 41, is an inner end, one end of the labyrinth flow passage 4111, which is communicated with the outside of the labyrinth sleeve 41, is an outer end, a cross-sectional flow area of the outer end is smaller than that of the inner end, the labyrinth flow passage 4111 includes multiple stages of sequentially communicated grooves, from inside to outside, the cross-sectional flow area of the grooves is gradually reduced, and liquid flows into the inside of the labyrinth sleeve 41 from the outside of the labyrinth sleeve 41 through the labyrinth flow passage 4111.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A labyrinth noise and pressure reducing valve, comprising:
the valve comprises a valve body (1), wherein a worm-shaped cavity is arranged in the valve body (1), one end of the worm-shaped cavity is a medium inlet, and the other end of the worm-shaped cavity is a medium outlet;
the valve cover (2) is fixedly arranged at the upper part of the valve body (1), and the valve cover (2) is suitable for sealing the valve body (1);
a valve seat (3) arranged in the volute cavity;
the valve sleeve assembly (4) is arranged at the upper end of the valve seat (3), two ends of the valve sleeve assembly (4) are respectively connected with the valve seat (3) and the valve cover (2), the valve sleeve assembly (4) comprises a labyrinth sleeve (41), and the labyrinth sleeve (41) and the worm-shaped cavity are eccentrically arranged;
and the actuating mechanism penetrates through the valve cover (2) and is arranged in the worm-shaped cavity, and the actuating mechanism is suitable for being matched with the valve sleeve component (4) to close the worm-shaped cavity.
2. The labyrinth noise and pressure reduction valve as set forth in claim 1, wherein:
the valve sleeve component (4) further comprises a pressing sleeve (42), and two ends of the pressing sleeve (42) are connected with the valve cover (2) and the labyrinth sleeve (41) respectively.
3. The labyrinth noise and pressure reducing valve as set forth in claim 2, wherein:
labyrinth sleeve (41) include a plurality of maze dish (411), top preforming (412) and the bottom support piece (413) of range upon range of setting, top preforming (412) set up the upper end at the superiors maze dish (411), bottom support piece (413) set up the lower extreme at lower floor's maze dish (411), and is a plurality of maze dish (411) welded connection, maze dish (411) pass through top preforming (412) with press cover (42) to be connected, maze dish (411) pass through bottom support piece (413) with valve seat (3) are connected.
4. The labyrinth noise and pressure reducing valve as set forth in claim 3, wherein:
the surface of the labyrinth disc (411) is provided with a plurality of labyrinth flow channels (4111), and the labyrinth flow channels (4111) communicate the inside of the labyrinth sleeve (41) with the outside of the labyrinth sleeve (41).
5. The labyrinth noise and pressure reducing valve as set forth in claim 4, wherein:
labyrinth runner (4111) communicates the inside one end of labyrinth sleeve (41) is the medial extremity, labyrinth runner (4111) communicates the outside one end of labyrinth sleeve (41) is the outside end, and outside end flow cross-sectional area is greater than the medial extremity flow cross-sectional area.
6. The labyrinth noise and pressure reduction valve as set forth in claim 4, wherein:
labyrinth runner (4111) communicates the inside one end of labyrinth sleeve (41) is the medial extremity, labyrinth runner (4111) communicates the outside one end of labyrinth sleeve (41) is the outside end, and outside end flow cross-sectional area is less than the medial extremity flow cross-sectional area.
7. The labyrinth noise and pressure reducing valve according to any one of claims 1 to 6, wherein:
the actuating mechanism comprises a valve rod (5) and a valve core (6), the valve core (6) is arranged at one end of the valve rod (5), one end, provided with the valve core (6), of the valve rod (5) penetrates through the valve cover (2) to be arranged in the volute cavity, and the valve core (6) is suitable for vertically moving up and down along with the valve rod (5) and is matched with the labyrinth disc (411) to close the volute cavity.
8. The labyrinth noise and pressure reduction valve as set forth in claim 7, wherein:
the valve core (6) is abutted against the pressing sleeve (42), and a sealing ring (7) is arranged between the valve core (6) and the pressing sleeve (42).
9. The labyrinth noise and pressure reducing valve as set forth in claim 8, wherein:
the valve core (6) is provided with a through pressure balance hole (61), and the pressure balance hole (61) is suitable for balancing the pressure of the upper part and the lower part of the valve core (6).
10. The labyrinth noise and pressure reducing valve according to claim 8 or 9, wherein:
and a guide sleeve (8) suitable for guiding the valve rod (5) is also arranged in the valve cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221433822.5U CN217653353U (en) | 2022-06-08 | 2022-06-08 | Labyrinth type noise reduction pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221433822.5U CN217653353U (en) | 2022-06-08 | 2022-06-08 | Labyrinth type noise reduction pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217653353U true CN217653353U (en) | 2022-10-25 |
Family
ID=83684437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221433822.5U Active CN217653353U (en) | 2022-06-08 | 2022-06-08 | Labyrinth type noise reduction pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217653353U (en) |
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2022
- 2022-06-08 CN CN202221433822.5U patent/CN217653353U/en active Active
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