CN213176839U

CN213176839U - High-pressure self-sealing filler stop valve

Info

Publication number: CN213176839U
Application number: CN202022007586.8U
Authority: CN
Inventors: 卢翔; 陈雪萍; 钱正峰
Original assignee: Jiangsu Jinyu Anti Corrosion Technology Co ltd
Current assignee: Jiangsu Jinyu Anti Corrosion Technology Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-05-11
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a high pressure self sealss filler stop valve, which comprises a valve body, the inside of valve body is provided with hinders the lobe, the upper end surface of valve body is provided with the connection knob, the upper end surface of connecting the knob is provided with high resistance valve, the lower extreme surface of connecting the knob is provided with the valve rod, the surface of valve rod is provided with the case. The high-pressure self-sealing packing stop valve is convenient to install and disassemble by arranging the sealing flange device, can not only enhance the stress strength of the joint of the stop valve and a pipeline and prevent damage caused by overlarge stress, but also improve the sealing property of the joint of the stop valve and the pipeline and prevent leakage; still through being provided with high resistance valve, can be after the knob of stop valve is used for a long time, rust, dirt etc. can lead to the fact the jam back to the junction, still can easily wrench movement knob, have improved life, bring better use prospect.

Description

High-pressure self-sealing filler stop valve

Technical Field

The utility model relates to a stop valve technical field specifically is a high pressure self sealss filler stop valve.

Background

The packing seal is a dynamic seal device which generates pressing force between the packing and the rotating part and the fixed part through pretension or self-tightening action of medium pressure. Also known as stuffing box sealing. The structure form is more, mainly comprises filler, stuffing box and filler mounting. The commonly used filler materials comprise asbestos fabrics, carbon fibers, rubber, flexible graphite, engineering plastics and the like, are prefabricated into rings or strips (some fillers with good lubricity need to be soaked in advance), and adopt a multi-ring or spiral multi-layer structure. The stuffing box is used for placing stuffing. The packing fixing part comprises a gland, a bolt, a spring and the like, so that the packing is pre-tightened, the medium is prevented from leaking outwards during working, and the spring can play a compensation role. The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore, the full-open position of the stop valve is determined by the stroke of the valve clack

After a knob of the existing self-sealing filler stop valve is used for a long time, rust, dirt and the like can block a connecting part and are difficult to twist, so that the use is influenced; the existing self-sealing packing stop valve has poor sealing performance between a valve cover and a valve body as well as between the valve cover and the valve rod, and is easy to leak particularly under the high-pressure working condition; and the junction of the existing self-sealing filler stop valve and the feeding pipe and the discharging pipe is not firm enough, and the leakage is easy to generate after the self-sealing filler stop valve is used for a long time.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a high pressure self sealss filler stop valve, simple structure, the leakproofness is strong, and the knob is easily rotatory, has solved the problem among the background art.

(II) technical scheme

Possess simple structure for realizing the aforesaid, the leakproofness is strong, and the knob is easily rotatory mesh, the utility model provides a following technical scheme: the utility model provides a high pressure self sealss stop valve that packs, includes the valve body, the inside of valve body is provided with hinders the bulkhead, the upper end surface of valve body is provided with the connection knob, the upper end surface of connecting the knob is provided with high resistance valve, the lower extreme surface of connecting the knob is provided with the valve rod, the surface of valve rod is provided with the case, the lower extreme surface of valve rod is provided with the valve clack, the internal surface that hinders the bulkhead is provided with the barrier layer, be provided with logical material pipe between the barrier layer, the one side that leads to the material pipe is provided with the inlet pipe, the opposite side that leads to the material pipe is provided with.

Preferably, the high resistance valve includes the handle, the surface of handle is provided with the anti-skidding rubber guard circle, the lower extreme surface of handle is provided with the connecting rod, the lower extreme surface of connecting rod is provided with coupling nut the outer fixed surface of anti-skidding rubber guard circle and handle is connected, the lower extreme surface of handle and the upper end outer fixed surface of connecting rod are connected, the lower extreme and the coupling nut of connecting rod can dismantle and be connected.

Preferably, the antiskid rubber guard ring is fixedly connected with the outer surface of the handle, the outer surface of the lower end of the handle is fixedly connected with the outer surface of the upper end of the connecting rod, and the lower end of the connecting rod is detachably connected with the connecting nut.

Preferably, the sealing flange device comprises a connecting pipe, a connecting disc is arranged on one side of the connecting pipe, a flange plate is arranged on one side of the connecting disc, a fastening ring is arranged on the outer surface of the upper end of the flange plate, a mounting hole is formed in the outer surface of the fastening ring, and a sealing ring is arranged on the inner surface of the fastening ring.

Preferably, the connecting pipe is detachably connected with the connecting disc, the connecting disc is in threaded connection with the inner surface of the lower end of the flange plate, and the flange plate is detachably connected with the connecting disc through the mounting hole.

Preferably, the connecting knob is movably connected with a valve rod, the valve rod is in threaded connection with the valve core, and the valve rod is fixedly connected with the valve clack.

Preferably, the barrier layer is located the internal surface that hinders the lobe of a leaf, just barrier layer and separation cabin fixed connection, lead to the material pipe and be located between the barrier layer, just the inlet pipe is with the one side fixed connection who leads to the material pipe, the discharging pipe is with the opposite side fixed connection who leads to the material pipe.

(III) advantageous effects

Compared with the prior art, the utility model provides a high pressure self sealss filler stop valve possesses following beneficial effect:

1. this high pressure self sealss filler stop valve through being provided with sealed flange device, and the installation and the dismantlement of being convenient for not only can strengthen the atress intensity of stop valve and pipe connection department, prevent that the atress from too big causing the damage, can also improve the leakproofness of stop valve and pipe connection department, prevent to leak.

2. This high pressure self sealss filler stop valve through being provided with high resistance valve, can be after the knob of stop valve is used for a long time, and rust, dirt etc. can lead to the fact the jam back to the junction, still can easily wrench movement knob, have improved life.

Drawings

FIG. 1 is a schematic structural view of the whole high-pressure self-sealing packing stop valve of the present invention;

fig. 2 is the utility model relates to a high pressure self sealss are packed inside planar structure schematic diagram of stop valve.

Fig. 3 is the utility model relates to a high pressure self sealss packs stop valve's sealed flange device's schematic structure diagram.

Fig. 4 is the utility model relates to a high resistance valve's of high pressure self sealss filler stop valve structural schematic diagram.

In the figure: 1. a valve body; 2. a connecting knob; 3. a high resistance valve; 301. a grip; 302. an antiskid rubber protection ring; 303. a connecting rod; 304. a connecting nut; 4. sealing the flange device; 401. a connecting pipe; 402. a connecting disc; 403. a flange plate; 404. mounting holes; 405. a fastening ring; 406. a seal ring; 5. a cofferdam; 6. a valve stem; 7. a valve core; 8. a valve flap; 9. a barrier layer; 10. a material passing pipe; 11. a feed pipe; 12. and (4) discharging the pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a high-pressure self-sealing packing stop valve includes a valve body 1, a bulkhead 5 is disposed inside the valve body 1, a connection knob 2 is disposed on an upper end outer surface of the valve body 1, a high-resistance valve 3 is disposed on an upper end outer surface of the connection knob 2, a valve rod 6 is disposed on a lower end outer surface of the connection knob 2, a valve core 7 is disposed on an outer surface of the valve rod 6, a valve flap 8 is disposed on a lower end outer surface of the valve rod 6, a barrier layer 9 is disposed on an inner surface of the bulkhead 5, a material passing pipe 10 is disposed between the barrier layers 9, a material inlet pipe 11 is disposed on one side of the material passing pipe 10, a material outlet pipe.

Further, high resistance valve 3 includes handle 301, the surface of handle 301 is provided with anti-skidding rubber guard circle 302, the lower extreme surface of handle 301 is provided with connecting rod 303, the lower extreme surface of connecting rod 303 is provided with coupling nut 304 anti-skidding rubber guard circle 302 and handle 301's outer fixed surface and is connected, the lower extreme surface of handle 301 and the upper end outer fixed surface of connecting rod 303 are connected, the lower extreme and the coupling nut 304 of connecting rod 303 can be dismantled and be connected, easily rotate, and life has been improved.

Further, the antiskid rubber protection ring 302 is fixedly connected with the outer surface of the grip 301, the outer surface of the lower end of the grip 301 is fixedly connected with the outer surface of the upper end of the connecting rod 303, and the lower end of the connecting rod 303 is detachably connected with the connecting nut 304.

Further, sealing flange device 4 includes connecting pipe 401, one side of connecting pipe 401 is provided with connection pad 402, one side of connection pad 402 is provided with ring flange 403, the outer surface clamping ring 405 of the upper end of ring flange 403, the surface of clamping ring 405 is provided with mounting hole 404, the internal surface of clamping ring 405 is provided with sealing washer 406, be convenient for install and dismantle, not only can strengthen the stress intensity of stop valve and pipe connection department, prevent that the atress from too big causing the damage, can also improve the leakproofness of stop valve and pipe connection department, prevent to leak.

Further, the connection pipe 401 is detachably connected to the connection plate 402, the connection plate 402 is threadedly connected to the lower inner surface of the flange 403, and the flange 403 is detachably connected to the connection plate 402 through the mounting hole 404.

Further, connect knob 2 and valve rod 6 swing joint,

valve rod

6 and 7 threaded connection of case, valve rod 6 and valve clack 8 fixed connection.

Further, the barrier layer 9 is located the internal surface of separation cabin 5, and barrier layer 9 and separation cabin 5 fixed connection, lead to the material pipe 10 and be located between the barrier layer 9, and inlet pipe 11 and the one side fixed connection who leads to material pipe 10, discharging pipe 12 and the opposite side fixed connection who leads to material pipe 10.

Principle of operation

The utility model discloses a by valve body 1, connect knob 2, high resistance valve 3, handle 301, antiskid rubber protection circle 302, connecting rod 303, coupling nut 304, sealed flange device 4, connecting pipe 401, connection pad 402, ring flange 403, mounting hole 404, clamping ring 405, sealing washer 406, bulkhead 5, valve rod 6, case 7, valve flap 8, barrier layer 9, lead to the material pipe 10, inlet pipe 11, discharging pipe 12 parts and so on, at first, screw down in the mounting hole 404, detach ring flange 403 and connection pad 402, again connect pipeline and connecting pipe 401, after the connection is accomplished, rethread ring 403 and connection pad 402 are connected and fastened through the screw in the mounting hole 404, sealing washer 406 can improve the leakproofness of junction, prevent leaking, after the stop valve and pipeline connection are accomplished, can rotate valve rod 6 through rotatory handle 301, when valve flap 8 of the lower extreme surface of valve rod 6 rotates to the bottommost, the material passing pipe 10 can be blocked, and the stopping work is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high pressure self sealss packing stop valve, includes valve body (1), its characterized in that: the inside of valve body (1) is provided with hinders bulkhead (5), the upper end surface of valve body (1) is provided with connects knob (2), the upper end surface of connecting knob (2) is provided with high resistance valve (3), the lower extreme surface of connecting knob (2) is provided with valve rod (6), the surface of valve rod (6) is provided with case (7), the lower extreme surface of valve rod (6) is provided with valve clack (8), the internal surface that hinders bulkhead (5) is provided with barrier layer (9), be provided with between barrier layer (9) and lead to material pipe (10), one side of leading to material pipe (10) is provided with inlet pipe (11), the opposite side that leads to material pipe (10) is provided with discharging pipe (12), the both sides surface of valve body (1) is provided with sealing flange device (4).

2. The high pressure self-sealing packing stop valve of claim 1, wherein: high resistance valve (3) are including grip (301), the surface of grip (301) is provided with anti-skidding rubber guard ring (302), the lower extreme surface of grip (301) is provided with connecting rod (303), the lower extreme surface of connecting rod (303) is provided with coupling nut (304) anti-skidding rubber guard ring (302) is connected with the external fixed surface of grip (301), the lower extreme surface of grip (301) is connected with the upper end external fixed surface of connecting rod (303), the lower extreme and coupling nut (304) of connecting rod (303) can be dismantled and be connected.

3. The high pressure self-sealing packing stop valve of claim 2, wherein: the anti-skidding rubber protective ring (302) is fixedly connected with the outer surface of the grip (301), the outer surface of the lower end of the grip (301) is fixedly connected with the outer surface of the upper end of the connecting rod (303), and the lower end of the connecting rod (303) is detachably connected with the connecting nut (304).

4. The high pressure self-sealing packing stop valve of claim 2, wherein: the sealing flange device (4) comprises a connecting pipe (401), a connecting disc (402) is arranged on one side of the connecting pipe (401), a flange plate (403) is arranged on one side of the connecting disc (402), an upper end outer surface fastening ring (405) of the flange plate (403), a mounting hole (404) is formed in the outer surface of the fastening ring (405), and a sealing ring (406) is arranged on the inner surface of the fastening ring (405).

5. The high pressure self-sealing packing stop valve of claim 3, wherein: the connecting pipe (401) is detachably connected with the connecting disc (402), the connecting disc (402) is in threaded connection with the inner surface of the lower end of the flange plate (403), and the flange plate (403) is detachably connected with the connecting disc (402) through the mounting hole (404).

6. The high pressure self-sealing packing stop valve of claim 1, wherein: the connecting knob (2) is movably connected with the valve rod (6), the valve rod (6) is in threaded connection with the valve core (7), and the valve rod (6) is fixedly connected with the valve clack (8).

7. The high pressure self-sealing packing stop valve of claim 1, wherein: barrier layer (9) are located the internal surface that hinders lobe of a leaf (5), just barrier layer (9) and separation cabin (5) fixed connection, lead to material pipe (10) and be located between barrier layer (9), just inlet pipe (11) and the one side fixed connection who leads to material pipe (10), discharging pipe (12) and the opposite side fixed connection who leads to material pipe (10).