Valve suitable for working condition that medium is easy to condense

Abstract

The valve comprises a valve body and a stirring assembly, the valve body comprises a valve seat and a valve element arranged in the valve seat, the stirring assembly comprises a stirring shell and a stirring mechanism, and the stirring shell and the valve seat are connected in a sealed mode to form a valve shell. The two ends of the valve shell are used for being connected with channels for conveying media respectively. The stirring mechanism comprises a rotating ring which is arranged in the stirring shell and can rotate relative to the valve seat; the stirring blades are arranged on the inner wall of the rotating ring and are used for stirring materials near the channel and the valve seat; the driving part is arranged outside the stirring shell, and the driving part is in transmission connection with the rotating ring so as to drive the rotating ring to rotate; and the rotating ring drives the stirring blades to rotate in the medium conveying channel to stir the medium in the channel, so that the medium at the valve can be prevented from caking, or the medium at the valve can be prevented from being condensed into a small block which does not influence the opening and closing of the valve, and the normal opening of the valve is ensured.

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 some conditions prone to condensation, once the valve on the pipeline is closed, the medium in the channel at the valve will be in a static state for a long time and will gradually condense into blocks, making the valve unable to open.

[0003] Therefore, there is an urgent need for a valve suitable for working conditions where the medium is prone to condensation, so as to avoid the problem that the valve is easily blocked by condensation of the medium. Utility Model Content

[0004] The utility model aims to provide a valve suitable for working conditions where the medium is easy to condense. A stirring component is added at the valve to stir the medium at the valve through the stirring component, thereby ensuring that the medium in the channel at the valve does not agglomerate or form small pieces that do not affect the valve switch, thereby ensuring that the valve can be opened normally.

[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 easy to condense, comprising a valve body and a stirring assembly, wherein the valve body comprises a valve seat and a valve core arranged in the valve seat, the stirring assembly comprises a stirring shell and a stirring mechanism, the stirring shell is sealedly connected to the valve seat to form a valve shell, and the two ends of the valve shell are respectively used to be connected to a channel for conveying a medium; the stirring mechanism comprises:

[0007] A rotating ring, disposed in the mixing shell and capable of rotating relative to the valve seat;

[0008] A stirring blade, arranged on the inner wall of the rotating ring and used for stirring the material in the passage and near the valve seat;

[0009] A driving member is arranged outside the stirring shell, and the driving member is transmission-connected with the rotating ring to drive the rotating ring to rotate.

[0010] Preferably, the valve also includes a first rotating ring bearing and a second rotating ring bearing, the first rotating ring bearing and the second rotating ring bearing are respectively installed on the upstream side and the downstream side of the rotating ring, the end of the first rotating ring bearing away from the rotating ring abuts against the stirring shell, and the end of the second rotating ring bearing away from the rotating ring abuts against the valve shell.

[0011] Preferably, bosses are respectively provided on the upstream and downstream sides of the rotating ring, an O-shaped groove is provided on the end face of the boss away from one end of the rotating ring, an annular groove is provided on the circumferential outer wall of the boss, an end face sealing ring is installed in the O-shaped groove, an annular face sealing ring is installed inside the annular groove, the annular face sealing ring is abutted against the stirring shell, the end face sealing ring on one of the bosses abuts against the stirring shell, and the end face sealing ring on the other boss abuts against the valve seat.

[0012] Preferably, the stirring blades are arranged in at least one row on the inner wall of the rotating ring, and any stirring blade has an angle α with the axis of the stirring shell, wherein 0°<α<90°.

[0013] Preferably, the stirring mechanism further comprises a stirring beam, one end of which extends in a direction away from the valve core, and the stirring blade is fixedly connected to the rotating ring via the stirring beam.

[0014] Preferably, the stirring beam is a flat rod-shaped structure, and a portion of the stirring beam extends out of the rotating ring to form a shell cleaning portion, a side wall of the shell cleaning portion abuts against the inner wall of the stirring shell, and can slide along the inner wall of the stirring shell driven by the rotating ring, and the stirring blade is arranged on the side wall of the stirring beam close to the axis of the stirring shell.

[0015] Preferably, the stirring mechanism further comprises a scraper, and the scraper is installed on a side of the stirring beam close to the valve core, and the side of the scraper close to the valve core is a contoured structure, and the contoured structure is adapted to the shape of the valve core.

[0016] Preferably, the valve core is a spherical valve core, the scraper is clearance-matched with the valve core, and the scraper is provided with a through hole for the material to pass through.

[0017] Preferably, the rotating ring includes a turbine, the driving member includes a worm, one end of the worm is transmission-connected to the driving motor, and a connecting port 1 is provided on one side of the stirring shell, and the worm can pass through the connecting port 1 to engage with the turbine.

[0018] Preferably, the driving member also includes a worm frame, a worm plug and a worm bearing. The worm frame is tubular and is sleeved on the outside of the worm. The worm is rotatably connected to the worm frame through the worm bearing. The worm plug is sealed and installed at both axial ends of the worm frame, and the worm plug is provided with an opening for the worm to enter the interior of the worm frame. One side of the worm frame is provided with a connecting port 2 for the worm to mesh with the turbine, and the connecting port 1 is sealed and connected to the connecting port 2.

[0019] Compared with the prior art, the utility model has achieved the following technical effects:

[0020] The utility model provides a valve suitable for working conditions where the medium is prone to condensation. A stirring assembly is arranged on one side of the valve core. When the valve is closed, the stirring blades of the stirring assembly rotate in the medium conveying channel to stir the medium close to the valve, thereby avoiding agglomeration of the medium at the valve or causing the medium at the valve to condense into small pieces that do not affect the valve switch, thereby ensuring that the valve can be opened normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 This is a front view of a valve suitable for working conditions where the medium is prone to condensation;

[0023] Figure 2 This is a forward cross-sectional view of a valve suitable for working conditions where the medium is prone to condensation;

[0024] Figure 3 is a side cross-sectional view of the stirring assembly;

[0025] Figure 4 is a front view of the stirring blade;

[0026] Figure 5 is a top view of the stirring blade;

[0027] Figure 6 It is a schematic diagram of the matching relationship between the boss and the mixing shell;

[0028] Figure 7 This is a schematic diagram of the matching relationship between the turbine and worm gear;

[0029] Among them, 1. valve seat; 2. valve core; 3. stirring shell; 4. rotating ring; 5. stirring blade; 6. first rotating ring bearing; 7. second rotating ring bearing; 8. boss; 9. O-shaped groove; 10. annular groove; 11. stirring beam; 12. scraper; 13. through hole; 14. turbine; 15. worm; 16. worm rack; 17. worm plugging; 18. valve actuator; 19. transmission shaft; 20. positioning shaft bracket; 21. positioning shaft. DETAILED DESCRIPTION

[0030] 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.

[0031] The utility model aims to provide a valve suitable for working conditions where the medium is easy to condense, by stirring the medium in the channel at the valve through a stirring component, thereby avoiding the problem that the medium condenses into large pieces, resulting in the valve being unable to open normally.

[0032] 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.

[0033] like Figure 1-2 As shown, the valve provided by the embodiment of the utility model is suitable for working conditions where the medium is easy to condense, including a valve body and a stirring assembly; wherein the valve body includes a valve seat 1 and a valve core 2 arranged in the valve seat 1, and the stirring assembly includes a stirring shell 3 and a stirring mechanism, the stirring shell 3 is sealedly connected with the valve seat 1 to form a valve shell, and the two ends of the valve shell are respectively used to connect with the channel for conveying the medium, thereby realizing the sealed connection between the valve and the medium conveying channel. Furthermore, the stirring mechanism includes: a rotating ring 4, a stirring blade 5 and a driving member, the rotating ring 4 is arranged inside the stirring shell 3 and can rotate relative to the valve seat 1 with the axis of the valve seat 1 as the rotation center, the stirring blade 5 is arranged on the inner wall of the rotating ring 4, the driving member is arranged outside the stirring shell 3, and the driving assembly is connected to the rotating ring 4 in a transmission manner. When in use, first seal and connect the two ends of the shell with the channel of the conveying medium, so that the valve can control the on-off state of the medium conveying pipeline, and the driving member can provide driving force for the stirring mechanism, and then transmit the driving force to the stirring blade 5 through the rotating ring 4. Driven by the driving ring, the stirring blade 5 can rotate in the medium conveying channel to stir the material near the channel and the valve seat 1, so as to avoid the medium at the valve being in a static state, thereby preventing the medium from agglomerating. At the same time, the stirring blade 5 during the rotation process can also re-break up the agglomerated medium, effectively avoiding the problem of the medium condensing into large pieces near the valve, and ensuring that the valve can always be opened normally.

[0034] Those skilled in the art can understand that the relative position of the stirring assembly and the valve in the present application can be adaptively adjusted according to actual needs. On the premise of achieving the above-mentioned effects, the stirring assembly can be set upstream of the valve body, downstream of the valve body, or both upstream and downstream of the valve body, which will not be elaborated here.

[0035] As a preferred embodiment, the valve also includes a first rotating ring bearing 6 and a second rotating ring bearing 7, which are respectively installed on the upstream side and the downstream side of the rotating ring 4. At the same time, the end of the first rotating ring bearing 6 away from the rotating ring is abutted against the stirring shell 3, and the end of the second rotating ring bearing 7 away from the rotating ring 4 is abutted against the valve shell. The first rotating ring bearing 6 and the second rotating ring bearing 7 can limit the movement of the rotating ring 4 along the axial direction of the stirring shell 3, thereby ensuring the stability of the rotating ring 4 during operation.

[0036] Furthermore, bosses 8 are respectively provided on the upstream and downstream sides of the rotating ring 4, and an O-shaped groove 9 is provided on the end face of the boss 8 away from the rotating ring 4. An end face sealing ring is installed in the O-shaped groove 9, and the end face sealing ring on one of the bosses 8 abuts against the stirring shell 3, and the end face sealing ring on the other boss 8 abuts against the valve seat 1, thereby ensuring the sealing of the valve and preventing the medium in the medium conveying channel from leaking from the rotating ring 4.

[0037] More preferably, an annular groove 10 is provided on the circumferential outer wall of the boss 8, and an annular sealing ring is installed inside the annular groove 10. The annular sealing ring abuts against the stirring shell 3, thereby further improving the sealing performance of the valve.

[0038] like Figure 4-5 As shown, the stirring blades 5 are arranged in at least one row on the inner wall of the rotating ring 4, and any stirring blade 5 has an angle α with the axis of the stirring shell 3, wherein 0°<α<90°. The stirring blades 5 arranged in a row have a stronger stirring effect. At the same time, the angle α is between 0°<α<90°, so that the stirring blades 5 have a drainage effect while achieving the stirring effect. The stirring blades 5 will not be easily damaged due to excessive resistance due to the actual stirring area involved in stirring (the actual stirring area is: the projected area of ​​the stirring blade along the moving direction of the stirring blade), nor will the stirring effect be poor due to the actual stirring area involved in stirring being too small.

[0039] Preferably, the stirring mechanism further comprises a stirring beam 11, one end of which extends away from the valve core 2, and the stirring blade 5 is fixedly connected to the rotating ring 4 through the stirring beam 11. The arrangement of the stirring beam 11 enables the stirring blade 5 to be arranged at a position farther from the valve core 2, thereby expanding the influence range of the stirring component. At the same time, the stirring beam 11 can also play a certain stirring role on the medium, further improving the stirring effect of the stirring component.

[0040] like Figure 2 , 4As shown in Figures 5 and 6, the stirring beam 11 is a flat rod-shaped structure, and a part of the stirring beam 11 extends out of the rotating ring 4 to form a shell cleaning part. One side wall of the shell cleaning part abuts against the inner wall of the stirring shell 3, and can slide along the inner wall of the stirring shell 3 driven by the rotating ring 4. The stirring blade 5 is arranged on the side wall of the stirring beam 11 close to the axis of the stirring shell 3. The inner wall of the stirring shell 3 and the inner wall of part of the medium conveying pipeline can be cleaned by the shell cleaning part, thereby improving the anti-medium condensation effect of the stirring assembly.

[0041] Furthermore, the stirring mechanism further includes a scraper 12, which is installed on the side of the stirring beam 11 close to the valve core 2, and the side of the scraper 12 close to the valve core 2 is a profiling structure. The scraper 12 can prevent too much medium from adhering to the valve core 2, and the profiling structure of the scraper 12 is adapted to the shape of the valve core 2, thereby improving the cleaning effect of the scraper 12.

[0042] Preferably, the valve core 2 is a spherical valve core, the scraper 12 is an arc-shaped scraper, and the arc-shaped surface of the scraper 12 faces the valve core 2, the scraper 12 is in clearance with the valve core 2, and a through hole 13 for the material to pass through is provided on the scraper 12. When the scraper 12 scrapes off the medium attached to the valve core 2, the medium can pass through the scraper 12 through the gap between the scraper 12 and the valve core 2 and the through hole 13, ensuring that the scraper 12 will not accumulate on one side of the scraper 12 during the process of pushing the medium, avoiding the problem of accumulation and agglomeration of the medium and the scraper 12 being relatively still.

[0043] Furthermore, the rotating ring 4 includes a turbine 14, and the driving member includes a worm 15, one end of the worm 15 is connected to the driving motor, and a connection port 1 is provided on one side of the stirring shell 3, and the worm 15 can pass through the connection port 1 and mesh with the turbine 14. The turbine and worm have stronger stability, and the stirring blade 5 is driven to rotate in the form of a turbine and worm, which improves the stability of the valve when it is working.

[0044] As a further optimized solution, the driving member also includes a worm frame 16, a worm plug 17 and a worm bearing. The worm frame 16 is tubular and sleeved on the outside of the worm 15. The worm 15 is rotatably connected to the worm frame 16 through the worm bearing. The worm plug 17 is sealed and installed at both ends of the axial direction of the worm frame 16. The worm plug 17 is provided with an opening for the worm 15 to enter the inside of the worm frame 16. One side of the worm frame 16 is provided with a connection port 2 for the worm 15 to mesh with the turbine 14. The connection port 1 is sealed and connected to the connection port 2. The worm frame 16 is sealed and connected to the mixing shell 3, which further improves the sealing performance of the valve.

[0045] Preferably, in order to further improve the sealing performance of the valve, a worm packing is provided on the outside of the worm plug 17, and the worm packing is sleeved on the outer periphery of the worm. A worm packing gland is installed on the outside of the worm packing. The worm packing gland can provide a clamping force for the worm packing so that the worm packing fits tightly on the worm plug 17. At the same time, a sealing groove is opened on the side wall of the worm plug 17, and an O-ring is installed inside the sealing groove.

[0046] like Figure 2 As shown, the valve is also equipped with a valve actuator 18, which is fixed on the valve actuator 18 bracket to provide driving force for the opening and closing of the valve. A transmission shaft 19 is provided at the output end of the valve actuator 18, and the transmission shaft 19 is transmission-connected with one end of the valve core 2. A positioning shaft bracket 20 is provided at the end of the valve away from the transmission shaft 19, and the positioning shaft bracket 20 is sealed and connected with the valve housing. A positioning shaft 21 is provided on the positioning shaft bracket 20, and the positioning shaft 21 is rotationally connected with the valve. When working, the valve actuator 18 provides a rotation force for the valve through the transmission shaft 19. Under the restriction of the transmission shaft 19 and the positioning shaft 21, the valve can rotate with the connecting line of the transmission shaft 19 and the positioning shaft 21 as the rotation center, thereby realizing the closing or opening of the valve.

[0047] Preferably, an upper seal is provided between the valve and the valve actuator 18 to ensure the sealing of the connection between the valve and the transmission shaft 19 .

[0048] 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: The invention comprises a valve body and a stirring assembly, wherein the valve body comprises a valve seat (1) and a valve core (2) arranged in the valve seat (1), and the stirring assembly comprises a stirring shell (3) and a stirring mechanism, wherein the stirring shell (3) is sealedly connected to the valve seat (1) to form a valve shell, and the two ends of the valve shell are respectively used to be connected to a channel for conveying a medium; the stirring mechanism comprises: A rotating ring (4) is arranged in the stirring shell (3) and is capable of rotating relative to the valve seat (1); A stirring blade (5), arranged on the inner wall of the rotating ring (4) and used for stirring the material in the passage and near the valve seat (1); A driving member is arranged outside the stirring shell (3), and the driving member is in transmission connection with the rotating ring (4) to drive the rotating ring (4) to rotate.

2. The valve suitable for working conditions where the medium is prone to condensation according to claim 1 is characterized in that: The valve further comprises a first rotating ring bearing (6) and a second rotating ring bearing (7), wherein the first rotating ring bearing (6) and the second rotating ring bearing (7) are respectively mounted on the upstream side and the downstream side of the rotating ring (4), wherein one end of the first rotating ring bearing (6) away from the rotating ring (4) abuts against the stirring shell (3), and one end of the second rotating ring bearing (7) away from the rotating ring (4) abuts against the valve shell.

3. The valve suitable for working conditions where the medium is prone to condensation according to claim 2 is characterized in that: A boss (8) is provided on the upstream side and the downstream side of the rotating ring (4), respectively; an O-shaped groove (9) is provided on the end surface of the boss (8) away from the rotating ring (4); an annular groove (10) is provided on the circumferential outer wall of the boss (8); an end face sealing ring is installed in the O-shaped groove (9); an annular face sealing ring is installed in the annular groove (10); the annular face sealing ring is abutted against the stirring shell (3); the end face sealing ring on one of the bosses (8) is abutted against the stirring shell (3), and the end face sealing ring on the other boss (8) is abutted against the valve seat (1).

4. The valve suitable for working conditions where the medium is prone to condensation according to claim 1 is characterized in that: The stirring blades (5) are arranged in at least one row on the inner wall of the rotating ring (4), and any stirring blade (5) has an angle α with the axis of the stirring shell (3), wherein 0°<α<90°.

5. The valve suitable for working conditions where the medium is prone to condensation according to claim 4 is characterized in that: The stirring mechanism further comprises a stirring beam (11), one end of which extends in a direction away from the valve core (2), and the stirring blade (5) is fixedly connected to the rotating ring (4) via the stirring beam (11).

6. The valve suitable for working conditions where the medium is prone to condensation according to claim 5 is characterized in that: The stirring beam (11) is in the form of a flat rod-shaped structure, and a portion of the stirring beam (11) extends out of the rotating ring (4) to form a shell cleaning portion, a side wall of the shell cleaning portion abuts against an inner wall of the stirring shell (3), and can slide along the inner wall of the stirring shell (3) driven by the rotating ring (4), and the stirring blade (5) is arranged on a side wall of the stirring beam (11) close to the axis of the stirring shell (3).

7. The valve suitable for working conditions where the medium is prone to condensation according to claim 5 is characterized in that: The stirring mechanism further comprises a scraper (12), wherein the scraper (12) is mounted on a side of the stirring beam (11) close to the valve core (2), and the side of the scraper (12) close to the valve core (2) is a contoured structure, and the contoured structure is adapted to the shape of the valve core (2).

8. The valve suitable for working conditions where the medium is prone to condensation according to claim 7 is characterized in that: The valve core (2) is a spherical valve core (2), the scraper (12) is clearance-matched with the valve core (2), and the scraper (12) is provided with a through hole (13) for materials to pass through.

9. The valve suitable for working conditions where the medium is prone to condensation according to claim 1 is characterized in that: The rotating ring (4) includes a turbine (14), and the driving member includes a worm (15). One end of the worm (15) is drivingly connected to the driving motor. A connecting port 1 is provided on one side of the stirring shell (3), and the worm (15) can pass through the connecting port 1 to mesh with the turbine (14).

10. The valve suitable for working conditions where the medium is prone to condensation according to claim 9, characterized in that: The driving member further comprises a worm frame (16), a worm plug (17) and a worm bearing (18); the worm frame (16) is tubular and sleeved on the outside of the worm (15); the worm (15) is rotatably connected to the worm frame (16) via the worm bearing (18); the worm plug (17) is respectively installed at two axial ends of the worm frame (16) in a sealing manner; and the worm plug (17) is provided with an opening for the worm (15) to enter the interior of the worm frame (16); one side of the worm frame (16) is provided with a second connection port for the worm (15) to mesh with the turbine (14); the first connection port is sealedly connected to the second connection port.

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