CN217539668U

CN217539668U - Automatic sand discharging structure of valve core of gate valve

Info

Publication number: CN217539668U
Application number: CN202221763581.0U
Authority: CN
Inventors: 刘广瑞; 李鹏泽; 徐平; 邹爽; 王景; 盖黎晶
Original assignee: Shandong Jiekong Electric Technology Co ltd
Current assignee: Shandong Jiekong Electric Technology Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-10-04
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to a slide valve technical field, in particular to slide valve's automatic sediment outflow structure of case, cooperation valve plate, case use, and the semi-circular top of valve plate side crest line department is equipped with the transition C type angle that changes along with the type, and the bottom of case corresponds valve plate C type angle side simultaneously and is equipped with identical slope, thereby this domatic C type transition angle with the valve plate top realizes sealing mutually. The utility model has the advantages that: the problem of sand accumulation at the bottom of the traditional valve core can be solved, and the service life of the valve core is prolonged. When the valve plate is closed, fluid impacts the valve plate, and the fluid scouring the C-shaped angle at the top of the valve plate generates part of the fluid scouring towards the groove at the bottom of the valve core under the influence of the angle, so that accumulated sand deposited in the groove at the bottom of the valve core is scoured out before the valve plate and the valve core are in contact sealing.

Description

Automatic sand discharging structure of valve core of gate valve

Technical Field

The utility model relates to a slide valve technical field, in particular to automatic sediment outflow structure of case of slide valve.

Background

The gate valve is an on-off switch valve, the movement direction of the gate is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot play a role in adjustment and throttling.

The case of traditional slide valve all is that split type case pastes respectively in the valve plate both sides, and the case is easy ageing, seepage, and the ore pulp directly erodees the case when flowing through simultaneously, and case wearing and tearing speed is fast, leaks easily. Part integral type case receives the restriction of sealed principle, and the bottom all is equipped with sealed recess, and whole thickness is too thin, and bottom recess is long-pending sand easily when crossing thick liquid, leads to the case to be crowded fracture by long-pending sand at the valve plate in-process that opens and shuts, has the potential safety hazard.

Therefore, the applicant designs an automatic sand discharging structure of a valve core of a gate valve to solve the problems.

Disclosure of Invention

The utility model provides an compensate not enough among the prior art, provide an automatic sand discharging structure of case of slide valve.

The utility model provides an automatic sand discharging structure of case of slide valve, cooperation valve plate, case use, and semicircular top side edge of valve plate department is equipped with the transition C type angle that changes along with the type, and the bottom of case corresponds valve plate C type angle side simultaneously and is equipped with identical slope, thereby this domatic C type transition angle with the valve plate top extrudees the deformation mutually and realizes sealedly.

The impact of fluid on the C-shaped angle of the valve plate is utilized, the direction of the part of fluid is changed through the angle of the C-shaped angle, and the part of fluid scoured towards the groove at the bottom of the valve core is generated, so that the accumulated sand deposited in the groove at the bottom of the valve core is impacted. The existence of large particles between the valve plate and the valve core is avoided, the valve core is prevented from being broken by large particles in the closing process, and the service life of the valve core is prolonged.

Further, for better realization the utility model discloses, the case is the fashioned integral type structure of casting, and the valve plate is arranged in wherein.

Further, for better realization the utility model discloses, the case bottom is equipped with the recess of sealed usefulness, and recess one side has the slope.

Further, for better realization the utility model discloses, semi-circular top side crest line department of valve plate is equipped with the transition C type angle that changes along with the type.

Further, for better realization the utility model discloses, the angle of valve plate C type angle changes partial fluidic direction, produces the fluid that part erodeed to case bottom recess, and then the long-pending sand of clean deposit at case bottom recess.

The utility model has the advantages that:

the utility model discloses an automatic sediment structure of arranging of case of slide valve can solve the difficult problem of long-pending sand in traditional case bottom, improves the life of case. When the valve plate is closed, the fluid impacts the valve plate, part of the fluid scouring the groove at the bottom of the valve core is generated by scouring the fluid at the C-shaped angle at the top of the valve plate under the influence of the angle, and accumulated sand deposited in the groove at the bottom of the valve core is scoured out before the valve plate and the valve core are in contact sealing.

The influence of large particles in fluid between the valve plate and the valve core is solved, meanwhile, the C-shaped transition angle also increases the extrusion contact area of the valve core and the valve plate, the pressure born by the valve core is reduced, the durable aging of the valve core is improved, the application range of the gate valve with the structure is enlarged, and the gate valve is not limited to the application of clean fluid.

Drawings

Fig. 1 is a side view of the valve core automatic sand discharging structure of the gate valve of the present invention;

fig. 2 is a side sectional view of the valve cartridge of the present invention after closing;

fig. 3 is a schematic side sectional fluid diagram of the valve element closing process of the present invention.

In the figure, the position of the upper end of the main shaft,

1. valve core, 2, valve plate, 101, the slope in the valve core recess, 201, valve plate top C type transition angle.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Fig. 1-3 show a specific embodiment of the present invention, which is an automatic sand discharging structure for a valve core of a gate valve, and the main implementation components shown in fig. 1 include a valve core 1 and a valve plate 2, and a C-shaped transition angle 201 at the top of the valve plate, which changes with the type, is arranged at a ridge line at one side edge of the semicircular top of the valve plate 2; the position of the inner bottom of the valve core 1 corresponding to the C-shaped transition angle 201 at the top of the valve plate is provided with a matched inner slope surface 101 of the valve core groove, and the inner slope surface 101 of the valve core groove and the C-shaped transition angle 201 at the top of the valve plate are extruded and deformed mutually to realize sealing.

The specific implementation method of the embodiment is as follows: during closing of the gate valve, the valve plate moves perpendicular to the fluid, which impacts the valve plate. The fluid scouring the C-shaped angle at the top of the valve plate generates part of the fluid scouring towards the groove at the bottom of the valve core under the influence of the angle, and then accumulated sand deposited in the groove at the bottom of the valve core is scoured out before the valve plate and the valve core are in contact sealing, so that large particles in the fluid are prevented from damaging the valve core under the extrusion of the valve plate.

After the valve plate is closed in place, the slope surface in the valve core groove is extruded with the C-shaped transition angle at the top of the valve plate, and the sealing effect is realized. Meanwhile, the extrusion contact area of the valve core and the valve plate is increased, the pressure born by the valve core is reduced, the service life of the valve core is prolonged, and potential safety hazards are avoided.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides an automatic sand discharging structure of case of slide valve, includes case (1) and valve plate (2), its characterized in that:

a C-shaped transition angle (201) which changes along with the shape is arranged at the edge line of one side edge of the semicircular top of the valve plate (2); the position of the inner bottom of the valve core (1) corresponding to the C-shaped transition angle (201) at the top of the valve plate is provided with a matched inner slope surface (101) of the valve core groove, and the inner slope surface (101) of the valve core groove and the C-shaped transition angle (201) at the top of the valve plate are extruded and deformed to realize sealing.

2. The automatic sand discharging structure of the valve core of the gate valve according to claim 1, characterized in that:

the valve core (1) is of an integrated structure formed by casting, and the valve plate (2) can be movably arranged in the valve core up and down.

3. The automatic sand discharging structure of the valve core of the gate valve according to claim 1, characterized in that:

the bottom of the inner part of the valve core (1) is provided with a groove for sealing, and one side of the groove is provided with a valve core groove inner slope surface (101).

4. The automatic sand discharging structure of the spool of the gate valve according to claim 1, characterized in that:

the angle of the C-shaped transition angle (201) at the top of the valve plate changes the direction of part of fluid to generate part of fluid which is washed towards the groove at the bottom of the valve core (1), and then accumulated sand deposited in the groove at the bottom of the valve core (1) is cleaned.