Valve suitable for working condition that medium is easy to condense
By adding a stirring mechanism that can be extended into the casing to the valve to stir the medium, the problem of condensation into blocks and blockages under the condition that the medium is prone to condense, ensuring the normal operation of the valve.
Patent Information
- Application Number
- CN202323627334.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-27
AI Technical Summary
In pipeline transportation, when the medium is prone to condense, the medium is stationary in the pipeline for a long time and causes condensation into blocks, hindering the opening of the valve and may cause blockage, which is difficult to effectively solve the problem of the existing technology.
A valve suitable for the working conditions of easy condensation of the medium is designed, and a stirring mechanism that can extend into the inside of the shell is added. The agitation mechanism is driven to stir the material in the valve core assembly and channel to prevent condensation into blocks.
It effectively prevents the medium from condensing into large blocks near the valve, ensures the normal operation of the valve under easy condensation conditions, and prevents blockage and difficulty in opening.
Smart Images
Figure CN222297013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of control valves, in particular to a valve suitable for working conditions where a medium is prone to condensation. Background Art
[0002] Pipeline transportation has the advantages of low energy consumption, small land occupation, safety, and less pollution, and is widely used in the field of material transportation. However, when faced with easy-to-condense conditions where the pipeline needs to be closed for a long time, the medium is in a static state in the pipeline for a long time, which will cause the medium to gradually condense into blocks. The agglomerated medium will not only hinder the valve from being opened again, but also easily cause blockage at the valve.
[0003] Therefore, there is an urgent need for a valve suitable for working conditions where the medium is prone to condensation, so as to ensure the normal operation of the valve under such conditions. Utility Model Content
[0004] The purpose of the utility model is to provide a valve suitable for working conditions where the medium is prone to condensation, so as to solve the problems existing in the above-mentioned prior art. A stirring mechanism capable of extending into the interior of the shell is added to the valve. The stirring mechanism can prevent the medium near the valve from forming large lumps and clogging the valve, thereby ensuring the normal operation of the valve.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model provides a valve suitable for working conditions where a medium is prone to condensation, comprising a valve body, wherein both ends of the valve body are respectively used to communicate with a channel for conveying a medium, the valve body comprises a shell, a valve core assembly and a stirring assembly, the valve core assembly is arranged inside the shell, the stirring assembly comprises a stirring mechanism and a driving mechanism for driving the stirring mechanism to operate, the stirring mechanism extends into the shell, and is used to stir the valve core assembly and materials near the channel.
[0007] Preferably, the driving mechanism includes at least one group of rotating rings, and any group of rotating rings includes two rotating rings. The two rotating rings are arranged inside the shell and can rotate relative to the shell, and a bevel gear is arranged between the two rotating rings. The outer periphery of the rotating ring is provided with teeth meshing with the bevel gear. The bevel gear is transmission-connected to the power output mechanism so that the two rotating rings rotate towards each other, and the stirring mechanism is arranged on the inner wall of the rotating ring.
[0008] Preferably, the valve further comprises a rotating ring bearing, and the rotating ring bearing is installed on the upstream side and the downstream side of any one of the rotating rings, and the rotating ring bearing can provide axial supporting force for the rotating ring.
[0009] Preferably, in any group of rotating rings, one of the rotating rings is provided with an annular protrusion on the side close to the bevel gear, and the other rotating ring is provided with an annular groove on the side close to the bevel gear, the annular protrusion matches the annular groove, and a sealing ring groove for placing a sealing ring is provided on the annular protrusion and / or the annular groove.
[0010] Preferably, the driving mechanism includes a group of rotating rings, and an upstream boss and a downstream boss are respectively provided on the side of the two rotating rings away from each other, and O-shaped grooves are provided on the end faces of the upstream boss and the downstream boss, and annular grooves are opened on the circumferential outer walls of the upstream boss and the downstream boss, and end face sealing rings are installed in the O-shaped grooves, and an annular surface sealing ring is installed inside the annular groove, and the annular surface sealing ring and the end face sealing ring are both in contact with the shell.
[0011] Preferably, the two rotating rings are divided into an upstream rotating ring and a downstream rotating ring, and the stirring mechanism includes an upstream stirring blade and a downstream stirring blade, the upstream stirring blade is installed on the inner wall of the upstream rotating ring, and the downstream stirring blade is installed on the inner wall of the downstream rotating ring.
[0012] Preferably, the upstream stirring blade includes a connecting beam 1 and a stirring beam 1, one end of the connecting beam 1 is fixedly connected to the inner wall of the upstream rotating ring, and the other end extends radially toward the axis of the shell, one end of the stirring beam 1 is fixedly connected to the connecting beam 1, and the other end extends downstream along the axis of the shell, and the downstream stirring blade includes a connecting beam 2 and a stirring beam 2, one end of the connecting beam 2 is fixedly connected to the inner wall of the downstream rotating ring, and the other end extends radially toward the axis of the shell, one end of the stirring beam 2 is fixedly connected to the connecting beam 2, and the other end extends upstream along the axis of the shell, and the stirring beam 1 and the stirring beam 2 are staggered.
[0013] Preferably, a side of the second connecting beam close to the valve core assembly is a contoured structure, and the contoured structure is adapted to the shape of the valve core in the valve core assembly.
[0014] Preferably, the valve core is a spherical valve core, and the contoured structure is clearance-matched with the valve core.
[0015] Preferably, the rotating ring includes a ring body, a driving gear ring and a key body; the driving gear ring is sleeved on the outer side of the ring body, and key grooves are provided on the inner wall of the driving gear ring and the outer wall of the ring body correspondingly, and the key body is embedded in the key groove to connect the driving gear ring and the ring body, the teeth on the driving gear ring constitute the teeth, the driving gear ring is meshed with the bevel gear, and the stirring mechanism is fixedly arranged on the inner wall of the ring body.
[0016] Compared with the prior art, the utility model has achieved the following technical effects:
[0017] In the valve provided by the utility model, which is suitable for working conditions where the medium is prone to condensation, a stirring assembly is added on the basis of the original valve, and the stirring mechanism of the stirring assembly can extend into the interior of the valve housing. After the valve is closed, the stirring mechanism can stir the medium in the valve core assembly and the pipeline around the valve core assembly to prevent the medium from condensing into lumps, or to prevent the medium from condensing into large lumps near the valve that can affect the normal opening of the valve, thereby ensuring the normal operation of the valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a front cross-sectional view of the utility model;
[0020] Figure 2 It is a partial schematic diagram of the front cross-sectional view of the utility model;
[0021] Figure 3 It is a cross-sectional view of the valve actuator of the utility model;
[0022] Among them, 1. Shell; 2. Bevel gear; 3. Rotating ring bearing; 4. Annular protrusion; 5. Annular groove; 6. Sealing ring groove; 7. Upstream boss; 8. Downstream boss; 9. O-type groove; 10. Annular groove; 11. Upstream rotating ring; 12. Downstream rotating ring; 13. Connecting beam 1; 14. Stirring beam 1; 15. Connecting beam 2; 16. Stirring beam 2; 17. Valve core; 18. Drive motor; 19. Drive shaft; 20. Agitator housing; 21. Drive bearing 1; 22. Drive bearing 2; 23. Agitator packing; 24. Valve seat connection; 25. Front cover; 26. Valve actuator; 27. Valve core drive shaft; 28. Positioning bracket; 29. Drive shaft bracket; 30. Bracket packing. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model aims to provide a valve suitable for working conditions where the medium is prone to condensation, so as to solve the problem in the prior art that the valve cannot operate normally under the working conditions where the medium is prone to condensation.
[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0026] like Figure 1-3 As shown, the valve suitable for the medium easy to condense working condition provided by the embodiment of the utility model comprises a valve body, the two ends of the valve body are respectively used to communicate with the channel of the conveying medium, the valve body comprises a shell 1, a valve core assembly and a stirring assembly, the valve core assembly is arranged inside the shell 1, the stirring assembly comprises a stirring mechanism and a driving mechanism for driving the stirring mechanism to operate, the stirring mechanism extends into the shell 1, and is used to stir the valve core assembly and the material near the channel. When working, the two ends of the shell 1 are sealed and connected with the channel of the conveying medium, and then the on-off state of the pipeline can be controlled by adjusting the state of the valve core assembly, the stirring mechanism extends into the shell 1, when the valve is in a closed state, the driving mechanism drives the stirring mechanism to operate, stir the valve core assembly and the medium in the channel near the valve core assembly, avoid the medium near the valve core assembly in a completely static state, so as to prevent the medium near the valve from condensing into agglomerates, and at the same time, the stirring mechanism in operation can also break up the agglomerated medium again, effectively avoiding the medium near the valve from condensing into large pieces that can affect the normal opening of the valve, and ensuring the normal operation of the valve under the easy condensation working condition.
[0027] Furthermore, the driving mechanism includes at least one group of rotating rings, and any group of rotating rings includes two rotating rings. The two rotating rings are both arranged inside the housing 1 and can rotate relative to the housing 1, and a bevel gear 2 is arranged between the two rotating rings. The outer periphery of the rotating ring is provided with teeth meshing with the bevel gear 2. The bevel gear 2 is connected to the power output mechanism in a transmission manner so that the two rotating rings rotate in opposite directions, and the stirring mechanism is arranged on the inner wall of the rotating ring. The rotating rings are respectively arranged on the left and right sides of the bevel gear 2. Under the action of the bevel gear 2, the two rotating rings can produce relative rotation in opposite directions, that is, the stirring mechanisms installed on the two rotating rings rotate in opposite directions, so that the stirring assembly can produce two different stirring trends in the channel of the conveying medium, which greatly enhances the stirring effect of the stirring assembly.
[0028] As a preferred embodiment, the valve further comprises a rotating ring bearing 3, and the upstream and downstream sides of any rotating ring are both equipped with a rotating ring bearing 3, and the rotating ring bearing 3 can provide axial support force for the rotating ring. The rotating ring bearing 3 can limit the movement of the rotating ring along the axis direction of the housing 1, thereby ensuring the stability of the rotating ring during operation.
[0029] Please continue to refer to Figure 1 In any set of rotating rings, one rotating ring is provided with an annular protrusion 4 on the side close to the bevel gear 2, and the other rotating ring is provided with an annular groove 5 on the side close to the bevel gear 2. The annular protrusion 4 matches the annular groove 5, and a sealing ring groove 6 for placing a sealing ring is provided on the annular protrusion 4 and / or the annular groove 5. A sealing ring is provided in the sealing ring groove 6 to ensure the sealing between the two rotating rings.
[0030] As a preferred embodiment, the annular groove 5 is sleeved on the outside of the annular protrusion 4, and the annular groove 5 is provided with multi-stage baffles on the axial side of the housing 1 and the annular protrusion 4 away from the axial side of the housing 1. The multi-stage baffles are distributed on the annular groove 5 and the annular protrusion 4 along the axial direction of the housing 1. The baffles on the annular groove 5 match the baffles on the annular protrusion 4 to form a labyrinth seal, thereby achieving a seal between the two rotating rings. Different from the previous embodiment, the present embodiment adopts a labyrinth seal instead of a sealing ring seal to seal the overlap between the annular groove 5 and the annular protrusion 4.
[0031] Preferably, the driving mechanism includes only one set of rotating rings, and an upstream boss 7 and a downstream boss 8 are respectively provided on the side of the two rotating rings away from each other, and an O-shaped groove 9 is provided on the end faces of the upstream boss 7 and the downstream boss 8. An annular groove 10 is opened on the circumferential outer wall of the upstream boss 7 and the downstream boss 8, and an end face sealing ring is installed in the O-shaped groove 9, and an annular face sealing ring is installed inside the annular groove 10. The annular face sealing ring and the end face sealing ring are both in contact with the housing 1, thereby ensuring the sealing of the valve and preventing the medium in the medium conveying channel from leaking from the rotating ring.
[0032] Furthermore, the rotating ring is divided into an upstream rotating ring 11 and a downstream rotating ring 12 , and the stirring mechanism includes an upstream stirring blade and a downstream stirring blade. The upstream stirring blade is installed on the inner wall of the upstream rotating ring 11 , and the downstream stirring blade is installed on the inner wall of the downstream rotating ring 12 .
[0033] More specifically, the upstream stirring blade includes a connecting beam 13 and a stirring beam 14, one end of the connecting beam 13 is fixedly connected to the inner wall of the upstream rotating ring 11, and the other end extends radially toward the axis of the shell 1, one end of the stirring beam 14 is fixedly connected to the connecting beam 13, and the other end extends downstream along the axis of the shell 1, and the downstream stirring blade includes a connecting beam 2 15 and a stirring beam 2 16, one end of the connecting beam 2 15 is fixedly connected to the inner wall of the downstream rotating ring 12, and the other end extends radially toward the axis of the shell 1, one end of the stirring beam 2 16 is fixedly connected to the connecting beam 2 15, and the other end extends upstream along the axis of the shell 1, and the stirring beam 14 and the stirring beam 2 16 are staggered. There are multiple stirring beams 14 along the extending direction of the connecting beam 13, and the spacing between any two adjacent stirring beams 14 allows one stirring beam 2 16 to pass through, and there are also multiple stirring beams 2 16 along the extending direction of the connecting beam 2 15, and the spacing between any two adjacent stirring beams 2 16 allows one stirring beam 14 to pass through. The medium in the channel can be stirred radially of the shell 1 through connecting beam 13 and connecting beam 2 15, and the medium in the channel can be stirred axially of the shell 1 through the stirring beam. At the same time, the staggered stirring beam 14 and stirring beam 2 16 can shear the medium between stirring beam 14 and stirring beam 2 16 during rotation, further enhancing the stirring effect of the stirring assembly.
[0034] As a preferred embodiment, the side of the connecting beam 2 15 close to the valve core assembly is a profiling structure, and the profiling structure is adapted to the shape of the valve core 17 in the valve core assembly. The profiling structure on the connecting beam can prevent a large amount of medium from adhering to the surface of the valve core 17, thereby avoiding the problem that the medium condenses on the surface of the valve core 17, making it difficult to open the valve core 17.
[0035] Preferably, the valve core 17 is a spherical valve core, the profiling structure is in clearance with the valve core 17, and a through hole for the material to pass through is provided on the second connecting beam 15. When the second connecting beam 15 scrapes off the medium attached to the valve core 17, the medium can pass through the second connecting beam 15 through the gap between the second connecting beam 15 and the valve core 17 and the through hole, ensuring that the medium will not accumulate on one side of the second connecting beam 15 during the process of the second connecting beam 15 pushing the medium, thereby avoiding the problem of the medium and the second connecting beam 15 being relatively stationary and accumulating and agglomerating.
[0036] Furthermore, the rotating ring includes a ring body, a driving gear ring and a key body; the driving gear ring is sleeved on the outer side of the ring body, and key grooves are provided on the inner wall of the driving gear ring and the outer wall of the ring body respectively, and the key body is embedded in the key groove to connect the driving gear ring and the ring body, and the teeth on the driving gear ring constitute teeth, and the driving gear ring is meshed with the bevel gear 2, and the stirring mechanism is fixedly arranged on the inner wall of the ring body.
[0037] like Figure 2As shown, the power output mechanism is a drive motor 18, the output end of the drive motor 18 is connected to the bevel gear 2 through a transmission shaft 19, the drive motor 18 is installed on the outside of the housing 1 through an agitator bracket, an agitator housing 20 is provided on the outside of the agitator bracket, the agitator housing 20 is sealed and connected to the housing 1, an agitator transmission bearing 1 21 and an agitator transmission bearing 2 22 are provided on the agitator bracket, the transmission shaft 19 is connected to the agitator transmission bearing 1 21 and the agitator transmission bearing 2 22, and is used to ensure the stability of the transmission shaft 19 during rotation. An agitator packing 23 is provided on the side of the agitator transmission bearing 1 21 and the agitator transmission bearing 2 22 away from the housing 1, and the agitator packing 23 is sleeved on the periphery of the transmission shaft 19 to ensure the seal between the agitator bracket and the agitator housing 20, and an agitator packing gland for providing pressure for the agitator packing 23 is provided on the upper part of the agitator seasoning.
[0038] Furthermore, the agitator transmission bearing 1 21 is a thrust ball bearing for bearing the axial pressure of the transmission shaft 19 , and the agitator transmission bearing 2 22 is a deep groove ball bearing for bearing the radial pressure of the transmission shaft 19 .
[0039] More preferably, a valve seat connection 24 is provided at one end of the shell 1 , and a front cover 25 is provided at the other end of the shell 1 . The valve is connected to an external pipeline through the valve seat connection 24 and the front cover 25 , and forms a valve cavity structure with the shell 1 .
[0040] Please refer to Figure 3 The valve also includes a valve actuator 26, which is connected to the valve core 17 through a valve core transmission shaft 27. The valve core transmission shaft 27 is installed on the outside of the shell 1 through a positioning bracket 28. The positioning bracket 28 is fixedly connected to the shell 1. A transmission shaft bracket 29 for stabilizing the valve core transmission shaft 27 is arranged between the valve core transmission shaft 27 and the positioning bracket 28. A bracket packing 30 is arranged at one end of the positioning bracket 28 away from the shell 1. The bracket packing 30 is used to fill the gap between the valve core transmission shaft 27 and the positioning bracket 28. A bracket packing gland is matched with the outside of the bracket packing 30.
[0041] It can be understood that the stirring component in the present application can also be a stirring blade directly driven by a motor, and the stirring blade extends into the interior of the shell 1 through a through hole opened on the shell 1 to stir the valve core 17 and the medium in the channel near the valve core 17. The connection method between the stirring component and the shell 1 is the same as the connection method between the valve actuator 26 and the valve, which will not be repeated here.
[0042] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A valve suitable for working conditions where the medium is prone to condensation, characterized in that: It comprises a valve body, the two ends of which are respectively used to communicate with a channel for conveying a medium, the valve body comprises a shell (1), a valve core assembly and a stirring assembly, the valve core assembly is arranged inside the shell (1), the stirring assembly comprises a stirring mechanism and a driving mechanism for driving the stirring mechanism to operate, the stirring mechanism extends into the shell (1) and is used to stir the valve core assembly and materials near the channel.
2. The valve suitable for working conditions where the medium is prone to condensation according to claim 1 is characterized in that: The driving mechanism comprises at least one group of rotating rings, any one group of rotating rings comprises two rotating rings, the two rotating rings are arranged inside the shell (1) and are both capable of rotating relative to the shell (1), a bevel gear (2) is arranged between the two rotating rings, teeth meshing with the bevel gear (2) are arranged on the outer periphery of the rotating ring, the bevel gear (2) is connected to the power output mechanism in a transmission manner so that the two rotating rings rotate towards each other, and the stirring mechanism is arranged on the inner wall of the rotating ring.
3. The valve suitable for working conditions where the medium is prone to condensation according to claim 2 is characterized in that: The valve further comprises a rotating ring bearing (3), and the rotating ring bearing (3) is installed on the upstream side and the downstream side of any one of the rotating rings, and the rotating ring bearing (3) can provide axial supporting force for the rotating ring.
4. The valve suitable for working conditions where the medium is prone to condensation according to claim 3 is characterized in that: In any group of rotating rings, one of the rotating rings is provided with an annular protrusion (4) on the side close to the bevel gear (2), and the other rotating ring is provided with an annular groove (5) on the side close to the bevel gear (2); the annular protrusion (4) matches the annular groove (5), and a sealing ring groove (6) for accommodating a sealing ring is provided on the annular protrusion (4) and / or the annular groove (5).
5. The valve suitable for working conditions where the medium is prone to condensation according to claim 4 is characterized in that: The driving mechanism comprises a group of rotating rings, wherein an upstream boss (7) and a downstream boss (8) are respectively arranged on the sides of the two rotating rings which are away from each other, an O-shaped groove (9) is arranged on the end faces of the upstream boss (7) and the downstream boss (8), an annular groove (10) is opened on the circumferential outer wall of the upstream boss (7) and the downstream boss (8), an end face sealing ring is installed in the O-shaped groove (9), an annular face sealing ring is installed inside the annular groove (10), and the annular face sealing ring and the end face sealing ring are both in contact with the housing (1).
6. The valve suitable for working conditions where the medium is prone to condensation according to claim 5 is characterized in that: The two rotating rings are divided into an upstream rotating ring (11) and a downstream rotating ring (12), and the stirring mechanism comprises an upstream stirring blade and a downstream stirring blade, wherein the upstream stirring blade is mounted on the inner wall of the upstream rotating ring (11), and the downstream stirring blade is mounted on the inner wall of the downstream rotating ring (12).
7. The valve suitable for working conditions where the medium is prone to condensation according to claim 6 is characterized in that: The upstream stirring blade comprises a connecting beam 1 (13) and a stirring beam 1 (14); one end of the connecting beam 1 (13) is fixedly connected to the inner wall of the upstream rotating ring (11), and the other end extends radially toward the axis of the shell (1); one end of the stirring beam 1 (14) is fixedly connected to the connecting beam 1 (13), and the other end extends downstream along the axis of the shell (1); the downstream stirring blade comprises a connecting beam 2 (15) and a stirring beam 2 (16); one end of the connecting beam 2 (15) is fixedly connected to the inner wall of the downstream rotating ring (12), and the other end extends radially toward the axis of the shell (1); one end of the stirring beam 2 (16) is fixedly connected to the connecting beam 2 (15), and the other end extends upstream along the axis of the shell (1); the stirring beam 1 (14) and the stirring beam 2 (16) are arranged in a staggered manner.
8. The valve suitable for working conditions where the medium is prone to condensation according to claim 7 is characterized in that: The side of the second connecting beam (15) close to the valve core assembly is a contoured structure, and the contoured structure is adapted to the shape of the valve core (17) in the valve core assembly.
9. The valve suitable for working conditions where the medium is prone to condensation according to claim 8, characterized in that: The valve core (17) is a spherical valve core, and the contoured structure is clearance-matched with the valve core (17).
10. The valve suitable for working conditions where the medium is prone to condensation according to claim 2, characterized in that: The rotating ring comprises a ring body, a driving gear ring and a key body; the driving gear ring is sleeved on the outer side of the ring body, and a key groove is provided on the inner wall of the driving gear ring and the outer wall of the ring body correspondingly; the key body is embedded in the key groove to connect the driving gear ring and the ring body; the teeth on the driving gear ring constitute the teeth; the driving gear ring is meshed with the bevel gear (2); and the stirring mechanism is fixedly arranged on the inner wall of the ring body.