Multi-runner rotary valve element

Abstract

The utility model discloses a valve element of a multi-runner rotary valve, and relates to the technical field of rotary valves. Comprising a movable valve element and a fixed valve element which are in taper fit, the movable valve element is wrapped with the fixed valve element, annular runner grooves are evenly formed in the outer wall of the movable valve element, movable valve element side face runner holes are evenly distributed in the outer wall of the movable valve element, and top runner holes are evenly distributed in the top of the movable valve element. Fixed valve element side face runner holes which are equal to the movable valve element side face runner holes in height and correspond to the movable valve element side face runner holes are evenly distributed in the outer wall of the fixed valve element. According to the valve element of the multi-runner rotary valve, traditional plane distribution of the runner grooves and the runner holes is changed into longitudinal distribution, a high-purity material feeding groove is placed in the uppermost runner groove, and materials with high impurity content are placed in the bottommost runner groove, so that the pollution risk caused by material leakage can be reduced, the transverse size of the valve element is reduced, and the service life of the valve element is prolonged. The movable valve element with the taper is matched with the fixed valve element, relative abrasion generated in the long-term rotating process can be automatically compensated, and the sealing performance is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary valve technical field, concretely is a kind of multi-channel rotary valve valve core. BACKGROUND

[0002] The multi-channel rotary valve valve core in the current market includes multi-slot rotary valve for I SEP system, valve core adopts plane seal, upper valve core is fixed valve core, lower valve core is movable valve core, a sealing gasket is embedded in movable valve core middle, reactor and lower valve core do synchronous rotation, realize the distribution of material.The valve core structure determines that reactor must be synchronously rotated with rotary valve in production, leading to the volume of rotating disc structure is huge, and maintenance is complex.

[0003] Another is RDA rotary valve, also adopts plane seal, and the valve core of I SEP system is different, because a plurality of annular flow channel grooves are processed in the upper valve core, so that the rotary valve can be rotated alone, the reactor does not need to rotate with the valve core, the huge rotating disc structure is removed, and the size of the reactor is no longer limited by the volume of the rotating disc and can be larger.But the structure is due to the plurality of concentric circular flow channel grooves on the valve core, leading to the valve core diameter is larger, and the plurality of flow channel grooves lead to the risk of mutual material mixing increases. SUMMARY

[0004] The utility model provides a kind of multi-channel rotary valve valve core to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of multi-channel rotary valve valve core, including movable valve core, fixed valve core being rotationally connected, the fixed valve core is wrapped in the outside of movable valve core, the outer wall of movable valve core is evenly provided with annular flow channel groove from top to bottom, the outer wall of movable valve core is evenly distributed with movable valve core side flow channel hole above annular flow channel groove, the top of movable valve core is evenly distributed with top flow channel hole being communicated with movable valve core side flow channel hole, annular flow channel groove, the outer wall of fixed valve core is evenly distributed with fixed valve core side flow channel hole being set at the same height with movable valve core side flow channel hole and corresponding.

[0006] Further, the outer wall of the movable valve core is distributed with movable valve core side flow channel hole in two layers along its circumferential direction, and the top of the movable valve core is evenly distributed with three circles of top flow channel holes.

[0007] Further, the inside of the movable valve core is provided with L-shaped flow channel groove communicated with the top flow channel hole.

[0008] Further, the top flow channel hole located in the outermost circle is communicated with the movable valve core side flow channel hole located above through the L-shaped flow channel groove.

[0009] Further, the top flow channel hole located in the middle circle is communicated with the movable valve core side flow channel hole located below through the L-shaped flow channel groove.

[0010] Further, the top flow channel hole in the innermost circle is communicated with the annular flow channel groove through an L-shaped flow channel groove.

[0011] Further, the outer wall of the fixed valve core is distributed with fixed valve core flow channel interfaces from top to bottom.

[0012] Further, the fixed valve core flow channel interfaces are below the fixed valve core side flow channel holes, and the fixed valve core flow channel interfaces are correspondingly arranged with the annular flow channel groove.

[0013] Further, the movable valve core is provided with a taper, and the fixed valve core is arranged with the movable valve core.

[0014] Further, the movable valve core is provided with an intermediate circular through hole.

[0015] Compared with the prior art, the utility model provides a multi-flow channel rotary valve core, which has the following

[0016] Beneficial effects:

[0017] 1、 this multi-flow channel rotary valve core, flow channel groove and flow channel hole are changed from the traditional plane distribution to the longitudinal distribution, the high-purity material feeding groove is placed in the uppermost flow channel groove, the impurity content is higher material is placed in the bottom flow channel groove, can reduce the pollution risk caused by material leakage, and reduce the transverse volume of the valve core.

[0018] 2、 this multi-flow channel rotary valve core, adopt the cooperation of movable valve core and fixed valve core with taper, can automatically compensate the relative wear caused in the long-term rotation process, and the sealing performance is better. DRAWINGS

[0019] Figure 1 It is the overhead structure schematic view of the utility model;

[0020] Figure 2 It is the plane structure schematic view of the utility model;

[0021] Figure 3 It is the cross section structure schematic view of the movable valve core of the utility model;

[0022] Figure 4 It is the plane structure schematic view of the movable valve core of the utility model;

[0023] Figure 5 It is the structure schematic view of the utility model removal joint below.

[0024] In the figure: 1, moving valve core; 2, fixed valve core; 3, top flow channel hole; 4, moving valve core side flow channel hole; 5, annular flow channel groove; 6, L-shaped flow channel groove; 7, fixed valve core side flow channel hole; 8, fixed valve core flow channel interface; 9, middle circular through hole; 10, process pipeline joint; 11, side pipeline joint; 12, flow channel interface joint. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-5 The utility model discloses a kind of multi-flow channel rotary valve valve core, including moving valve core 1, fixed valve core 2 of relative rotation connection, the fixed valve core 2 is wrapped in the outside of moving valve core 1, the outer wall of moving valve core 1 is evenly provided with annular flow channel groove 5 from top to bottom, the outer wall of moving valve core 1 is evenly distributed with moving valve core side flow channel hole 4 above annular flow channel groove 5, the top of moving valve core 1 is evenly distributed with top flow channel hole 3, which is communicated with moving valve core side flow channel hole 4, annular flow channel groove 5 cooperation, the outer wall of fixed valve core 2 is evenly distributed with fixed valve core side flow channel hole 7, which is set with moving valve core side flow channel hole 4 and corresponds, change flow channel groove and flow channel from traditional plane distribution to longitudinal distribution, place high-purity material feeding groove in the uppermost flow channel groove, place material with higher impurity content in the bottommost flow channel groove, can reduce pollution risk caused by material leakage, and reduce the transverse volume of valve core, adopt the cooperation of moving valve core 1 with taper and fixed valve core 2, can automatically compensate relative wear generated in long-term rotation process, better sealing.

[0027] The moving valve core 1 has a taper, and the moving valve core 1 as a whole is in the shape of a circular truncated cone. An installation groove for rotatingly assembling the moving valve core 1 is formed in the inside of the fixed valve core 2. The taper of the moving valve core 1 and the fixed valve core 2 can automatically compensate relative wear generated in long-term rotation process, and the sealing is relatively better.

[0028] The moving valve core 1 and the fixed valve core 2 are in a stationary rotation.

[0029] Specifically, the outer wall of the moving valve core 1 is circumferentially distributed with two layers of moving valve core side flow channel holes 4, and the top of the moving valve core 1 is evenly distributed with three circles of top flow channel holes 3.

[0030] The inside of the moving valve core 1 is formed with an L-shaped flow channel groove 6 communicated with the top flow channel holes 3.

[0031] The top flow channel hole 3 in the outermost circle is connected to the dynamic valve core side flow channel hole 4 above through the L-shaped flow channel groove 6.

[0032] The top flow channel hole 3 in the middle circle is connected to the dynamic valve core side flow channel hole 4 below through the L-shaped flow channel groove 6.

[0033] The top flow channel hole 3 in the innermost circle is connected to the annular flow channel groove 5 through the L-shaped flow channel groove 6.

[0034] In the embodiment, the number of the top flow channel hole 3 in the outermost circle corresponds to the number of the dynamic valve core side flow channel hole 4 above the outer wall of the dynamic valve core 1, the number of the top flow channel hole 3 in the middle circle corresponds to the number of the dynamic valve core side flow channel hole 4 below the outer wall of the dynamic valve core 1, and the number of the top flow channel hole 3 in the innermost circle corresponds to the number of the annular flow channel groove 5.

[0035] Specifically, the outer wall of the static valve core 2 is provided with the static valve core flow channel interface 8 from top to bottom.

[0036] The static valve core flow channel interface 8 is below the static valve core side flow channel hole 7, and the static valve core flow channel interface 8 is correspondingly arranged with the annular flow channel groove 5.

[0037] In the embodiment, the top flow channel hole 3 of the dynamic valve core 1 is a process flow channel hole, and a process pipeline joint 10 is arranged thereon, which is connected in different ways according to the specific process pipeline.

[0038] A flow channel interface joint 12 is arranged at the static valve core flow channel interface 8, and a side pipeline joint 11 is arranged on the static valve core side flow channel hole 7.

[0039] The static valve core side flow channel hole 7 is connected to the corresponding reactor inlet and outlet through the pipeline connection of the side pipeline joint 11.

[0040] The flow channel interface joint 12 is connected to the storage tank through a pump, which is used for feeding and discharging.

[0041] Since the reactor is connected to the static valve core 2 and the process pipeline is arranged on the dynamic valve core 1, the reactor does not need to rotate with the valve core, and the large rotating mechanism is abandoned, and the annular flow channel groove 5 is vertically arranged, thereby reducing the transverse volume of the valve core.

[0042] Specifically, the dynamic valve core 1 is provided with a middle circular through hole 9.

[0043] In the embodiment, the middle circular through hole 9 of the dynamic valve core 1 is used for connecting a driving shaft and applying pressure.

[0044] In use, in the initial position, the movable valve core side flow channel hole 4 and the fixed valve core side flow channel hole 7 are one-to-one corresponding, when the valve core is driven, the movable valve core 1 rotates in a stationary manner, the movable valve core side flow channel hole 4 and each fixed valve core side flow channel hole 7 of the fixed valve core 2 are connected once, and the corresponding position of the movable valve core side flow channel hole 4 is sequentially extended when the movable valve core 1 rotates once, so that the distribution of the solution is realized.

[0045] In summary, the multi-flow channel rotary valve core changes the traditional planar distribution of the flow channel groove and the flow channel hole to longitudinal distribution, places the high-purity material feeding groove in the uppermost flow channel groove, and places the material with high impurity content in the bottommost flow channel groove, so that the pollution risk caused by material leakage can be reduced, the transverse volume of the valve core is reduced, the movable valve core 1 with a taper is matched with the fixed valve core 2, the relative wear generated in the long-term rotation process can be automatically compensated, and the sealing performance is better.

[0046] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-flow rotary valve spool comprising a moving spool (1), a stationary spool (2) connected in rotation, characterized in that: The fixed valve core (2) is wrapped outside the moving valve core (1), the outer wall of the moving valve core (1) is uniformly provided with annular flow channel grooves (5) from top to bottom, the outer wall of the moving valve core (1) is uniformly distributed with moving valve core side flow channel holes (4) above the annular flow channel grooves (5), the top of the moving valve core (1) is uniformly distributed with top flow channel holes (3) matched with the moving valve core side flow channel holes (4) and the annular flow channel grooves (5), and the outer wall of the fixed valve core (2) is uniformly distributed with fixed valve core side flow channel holes (7) arranged at the same height as the moving valve core side flow channel holes (4) and corresponding to the moving valve core side flow channel holes (4).

2. A multi-channel rotary valve spool according to claim 1, characterized in that: The outer wall of the moving valve core (1) is circumferentially distributed with two layers of moving valve core side flow channel holes (4) from top to bottom, and the top of the moving valve core (1) is uniformly distributed with three circles of top flow channel holes (3).

3. A multi-channel rotary valve spool according to claim 2, wherein: The inner part of the moving valve core (1) is provided with L-shaped flow channel grooves (6) communicated with the top flow channel holes (3).

4. A multi-channel rotary valve spool according to claim 3, wherein: The top flow channel holes (3) located in the outermost circle are communicated with the moving valve core side flow channel holes (4) located above through the L-shaped flow channel grooves (6).

5. A multi-channel rotary valve spool according to claim 3, wherein: The top flow channel holes (3) located in the middle circle are communicated with the moving valve core side flow channel holes (4) located below through the L-shaped flow channel grooves (6).

6. A multi-channel rotary valve spool according to claim 3, wherein: The top flow channel holes (3) located in the innermost circle are communicated with the annular flow channel grooves (5) through the L-shaped flow channel grooves (6).

7. A multi-channel rotary valve spool as defined in claim 1, wherein: The outer wall of the fixed valve core (2) is distributed with fixed valve core flow channel interfaces (8) from top to bottom.

8. A multi-channel rotary valve spool according to claim 7, wherein: The fixed valve core flow channel interfaces (8) are located below the fixed valve core side flow channel holes (7), and the fixed valve core flow channel interfaces (8) are correspondingly matched with the annular flow channel grooves (5).

9. A multi-channel rotary valve spool as defined in claim 1, wherein: The moving valve core (1) has a taper, and the fixed valve core (2) is matched with the moving valve core (1).

10. A multi-channel rotary valve spool according to claim 1, wherein: The moving valve core (1) is provided with an intermediate circular through hole (9).

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