CN210600198U

CN210600198U - Self-cleaning crystal type regulating valve

Info

Publication number: CN210600198U
Application number: CN201921791714.3U
Authority: CN
Inventors: 张敦美
Original assignee: Shandong Yuhong Valve Co ltd
Current assignee: Shandong Yuhong Valve Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-05-22
Anticipated expiration: 2029-10-23

Abstract

The utility model belongs to the technical field of valves, and relates to a self-cleaning crystallization type regulating valve, which comprises a valve body, a valve seat and a sleeve, wherein the valve seat and the sleeve are arranged in the valve body; the periphery of the bottom end of the valve core is in a step-shaped closing-up mode, the closing-up position is in an inclined mode, the shape of the valve seat is matched with that of the bottom end of the valve core, and a step-shaped sealing gasket is arranged between the bottom end of the valve core and the valve seat. The utility model can effectively prevent the appearance of the periphery crystallization of the valve core, ensure the smooth lifting or descending of the valve core and keep the valve working normally all the time; the valve core and the valve seat can keep good matching, and material leakage is avoided.

Description

Self-cleaning crystal type regulating valve

Technical Field

The utility model relates to a self-cleaning crystallization type governing valve belongs to valve technical field.

Background

The valve is a control part in a fluid conveying system, is various in types and wide in application field, is often used for controlling the conveying of materials which are easy to crystallize, volatilize or thicken, and when the existing valve is applied to the transportation process of the materials which are easy to crystallize, volatilize or thicken, the surface of a valve core can be crystallized, so that the lifting or descending of the valve core is influenced, and the valve cannot be opened or closed; when the valve core is lowered and closed, certain impact can be caused on the valve seat matched with the valve core, and the valve core and the valve seat are matched to form a gap when being used for a long time, so that material leakage and the like are caused, waste is possible to be caused, and safety is also possible to be caused when toxic substances are transported.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the self-cleaning crystal type regulating valve can effectively prevent the crystallization of the periphery of the valve core, ensure that the valve core can be smoothly lifted or lowered, and ensure that the valve can always keep normal work; the valve core and the valve seat can keep good matching, and material leakage is avoided.

The utility model discloses a self-cleaning crystallization type governing valve, including the valve body, install disk seat and sleeve in the valve body, be equipped with the case in the sleeve, the case slides from top to bottom in the sleeve, the sleeve lower part is equipped with the opening along circumference, case upper portion is connected with the valve rod, install the valve gap above the valve body, valve rod upper portion wears out the valve gap, the sleeve inner circle above the opening is equipped with the pointed arch, the pointed arch contacts with the case periphery; the periphery of the bottom end of the valve core is in a step-shaped closing-up mode, the closing-up position is in an inclined mode, the shape of the valve seat is matched with that of the bottom end of the valve core, and a step-shaped sealing gasket is arranged between the bottom end of the valve core and the valve seat.

Under the normal condition, the tip form is protruding to contact but does not have the effect of power with the case periphery, but when the case periphery was with the one deck crystallization, case outer lane grow, the effect of scraper blade is then played to the case to the tip form arch this moment, when the valve was opened or was closed, the in-process that the case promoted or descends, the tip form arch was clear away the adnexed crystallization of case periphery, guarantees that the valve still keeps better state in order to satisfy the demand of normal work after accomplishing this time and closing. The periphery of the bottom end of the valve core is in a step-shaped closing-up mode, and a step-shaped sealing gasket is arranged between the bottom end of the valve core and the valve seat, so that the valve can be prevented from leaking, and normal work can be completed.

Preferably, the number of the pointed protrusions is 1-3.

Preferably, the inner ring of the sleeve above the circulation hole is provided with 2 annular grooves, the 2 annular grooves are distributed up and down, the annular grooves are internally provided with O-shaped sealing rings, the O-shaped sealing rings are tightly matched with the periphery of the valve core, and the sleeve and the valve core are sealed in a double way, so that no leakage is ensured.

Preferably, an elastic ring is fixed on the periphery of the valve rod on the lower bottom surface of the valve cover, so that the valve core is prevented from being damaged due to collision with the valve cover in the lifting process of the valve rod, and the service life of the valve core is prevented from being influenced; the valve rod can move up and down freely in the inner ring of the elastic ring.

Preferably, a compression spring is sleeved on the periphery of the valve rod between the lower bottom surface of the valve cover and the upper end surface of the valve core, a hose is sleeved on the periphery of the compression spring, and when the valve is in a closed state, the compression spring has a certain pressing effect on the valve core, so that the valve core is further ensured to be tightly matched with the valve seat, and the leakage of materials is avoided; and when using under the environment of volatile material, the material can be attached to the valve rod surface, influences the promotion or the decline of valve rod, and the setting up of hose prevents that the material from attaching to in the valve rod periphery, plays better guard action to the valve rod.

Preferably, the sleeve and the valve core are made of graphite or carbon fiber, and the graphite or carbon fiber is wear-resistant and long in service life.

Preferably, a sealing gasket is additionally arranged between the periphery of the upper part of the sleeve and the valve body, so that high sealing performance of the valve is guaranteed.

Compared with the prior art, the utility model beneficial effect who has is:

the utility model has reasonable structure design, the sharp bulge can clean the crystal attached to the periphery of the valve core in time, and the valve core can be ensured to be lifted or descended smoothly, so that the valve can always work normally; the arrangement of the O-shaped sealing ring, the step-shaped sealing gasket and the sealing gasket ensures high sealing performance of the valve; the valve rod periphery sets up the hose, and the protection prevents that the material from attaching to in the valve rod periphery, plays better guard action to the valve rod.

Drawings

FIG. 1 is a schematic structural view of a self-cleaning crystal-type regulating valve;

fig. 2 and a partially enlarged view of a in fig. 1.

In the figure: 1. a valve body; 2. a valve seat; 3. a stepped seal gasket; 4. a flow-through hole; 5. an O-shaped sealing ring; 6. a sleeve; 7. a valve cover; 8. an elastic ring; 9. a compression spring; 10. a hose; 11. a valve core; 12. a sealing gasket; 13. a pointed protrusion; 14. a valve stem.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 and 2, the self-cleaning crystal-type regulating valve of the present invention comprises a valve body 1, a valve seat 2 and a sleeve 6 which are installed in the valve body 1, wherein a valve core 11 is arranged in the sleeve 6, the valve core 11 slides up and down in the sleeve 6, a circulation hole 4 is circumferentially arranged on the lower portion of the sleeve 6, the upper portion of the valve core 11 is connected with a valve rod 14, a valve cover 7 is installed above the valve body 1, the upper portion of the valve rod 14 penetrates out of the valve cover 7, a pointed protrusion 13 is arranged on the inner ring of the sleeve 6 above the circulation hole 4, and the pointed protrusion 13 is; the periphery of the bottom end of the valve core 11 is in a step-shaped closing-up mode, the closing-up position is in an inclined mode, the shape of the valve seat 2 is matched with that of the bottom end of the valve core 11, and a step-shaped sealing gasket 3 is arranged between the bottom end of the valve core 11 and the valve seat 2.

In this embodiment:

the number of the pointed protrusions 13 is 1-3; the 6 inner circles of sleeve above circulation hole 4 are equipped with 2 annular grooves, and 2 annular grooves distribute from top to bottom, are equipped with O type sealing washer 5 in the annular groove, and O type sealing washer 5 closely cooperates with 11 peripheries of case, and double seal guarantees not to leak between sleeve 6 and the case 11.

An elastic ring 8 is fixed on the periphery of the valve rod 14 on the lower bottom surface of the valve cover 7, so that the valve core 11 is prevented from colliding with the valve cover 7 to cause damage in the lifting process of the valve rod 14, and the service life of the valve core 11 is prevented from being influenced; the valve rod 14 can move up and down freely in the inner ring of the elastic ring 8; a compression spring 9 is sleeved on the periphery of a valve rod 14 between the lower bottom surface of the valve cover 7 and the upper end surface of the valve core 11, a hose 10 is sleeved on the periphery of the compression spring 9, when the valve is in a closed state, the compression spring 9 has a certain pressing effect on the valve core 11, the tight fit between the valve core 11 and the valve seat 2 is further ensured, and the leakage of materials is avoided; when the valve rod 14 is used in the environment of volatile materials, the materials are attached to the surface of the valve rod 14, the lifting or descending of the valve rod 14 is affected, the materials are prevented from being attached to the periphery of the valve rod 14 through the arrangement of the hose 10, and the valve rod 14 is well protected.

The sleeve 6 and the valve core 11 are made of graphite or carbon fiber, and the graphite or carbon fiber is wear-resistant and long in service life; a sealing gasket 12 is additionally arranged between the periphery of the upper part of the sleeve 6 and the valve body 1, so that high sealing performance of the valve is guaranteed.

Under the normal condition, the effect of sharp arch 13 and the outer periphery of case 11 contact but do not have the power, but when case 11 periphery was with the one deck crystallization, 11 outer lane of case grow, sharp arch 13 then played the effect of scraper blade to case 11 this moment, when the valve was opened or was closed, case 11 promoted or the in-process that descends, sharp arch 13 cleared away the adnexed crystallization in case 11 periphery, guarantees that the valve still keeps better state in order to satisfy the demand of normal work after accomplishing this time to close. The periphery of the bottom end of the valve core 11 is in a step-shaped closing-up mode, and a step-shaped sealing gasket 3 is arranged between the bottom end of the valve core 11 and the valve seat 2, so that the valve can be prevented from leaking, and normal work can be completed.

Claims

1. The utility model provides a self-cleaning crystallization formula governing valve, includes valve body (1), install disk seat (2) and sleeve (6) in valve body (1), be equipped with case (11) in sleeve (6), case (11) slide from top to bottom in sleeve (6), sleeve (6) lower part is equipped with opening (4) along circumference, case (11) upper portion is connected with valve rod (14), valve gap (7) are installed to valve body (1) top, valve gap (7), its characterized in that are worn out on valve rod (14) upper portion: a sharp bulge (13) is arranged on the inner ring of the sleeve (6) above the circulation hole (4), and the sharp bulge (13) is contacted with the periphery of the valve core (11); the periphery of the bottom end of the valve core (11) is in a step-shaped closing-up mode, the closing-up position is in an inclined mode, the shape of the valve seat (2) is matched with that of the bottom end of the valve core (11), and a step-shaped sealing gasket (3) is arranged between the bottom end of the valve core (11) and the valve seat (2).

2. The self-cleaning crystalline conditioning valve of claim 1, wherein: the number of the pointed bulges (13) is 1-3.

3. The self-cleaning crystalline conditioning valve of claim 1, wherein: the inner ring of the sleeve (6) above the circulation hole (4) is provided with 2 annular grooves, the 2 annular grooves are distributed up and down, the annular grooves are internally provided with O-shaped sealing rings (5), and the O-shaped sealing rings (5) are tightly matched with the periphery of the valve core (11).

4. The self-cleaning crystalline conditioning valve of claim 1, wherein: an elastic ring (8) is fixed on the periphery of the valve rod (14) on the lower bottom surface of the valve cover (7).

5. The self-cleaning crystalline conditioning valve of claim 4, wherein: a compression spring (9) is sleeved on the periphery of the valve rod (14) between the lower bottom surface of the valve cover (7) and the upper end surface of the valve core (11), and a hose (10) is sleeved on the periphery of the compression spring (9).

6. A self-cleaning crystalline conditioning valve as defined in claim 1 or 4, wherein: the sleeve (6) and the valve core (11) are made of graphite or carbon fiber.

7. The self-cleaning crystalline conditioning valve of claim 1, wherein: a sealing gasket (12) is additionally arranged between the periphery of the upper part of the sleeve (6) and the valve body (1).