CN218761507U

CN218761507U - Damping oil leakage prevention gate valve during petroleum conveying

Info

Publication number: CN218761507U
Application number: CN202222628274.8U
Authority: CN
Inventors: 石业超
Original assignee: Haimen Beilestone Machinery Co ltd
Current assignee: Haimen Beilestone Machinery Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2023-03-28
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a gate valve of shock attenuation leak protection oil during oil transportation, seal assembly installs on the main part module, a leakproofness for increasing between flashboard and the pipeline, including installing the first sealing washer on the pipeline inner wall, fix the fixed plate of cup joint on the valve rod, install the second sealing washer in the fixed plate bottom, install the seal assembly on the pipeline inner wall and install at flashboard bottom extrusion subassembly, it has the opening to open on the interior roof of pipeline, a flexible activity is used for the flashboard, open-ended width equals with the width of flashboard, it has first recess to open on the interior diapire of pipeline, a tip for carrying out the gomphosis with the flashboard, it is even to keep the atress of flashboard, the width of first recess equals with the width of flashboard, the fixed plate is fixed on the valve rod, a gate valve rod is removed and is removed for following, be used for installing the second sealing washer simultaneously, the gate valve of shock attenuation leak protection oil during this oil transportation, the advantage of oil leak protection is placed to the leakproofness by force.

Description

Damping oil leakage prevention gate valve during petroleum conveying

Technical Field

The utility model relates to a gate valve technical field specifically is a gate valve of shock attenuation leak protection oil during oil transportation.

Background

Oil transportation, one of the components of fossil energy transportation. The method comprises two parts of crude oil transportation and product oil transportation. If the crude oil is imported, the crude oil is transported to a wharf of an import country from an export country by a large oil tanker and then transported to an oil refinery by an oil pipeline; if it is produced in China, it is delivered to each refinery through oil pipeline. The product oil is first delivered to various oil depots from oil refineries and transported mainly by pipelines, when oil is transported by pipelines, a gate valve is needed, the pipeline gate valve is a shutter plate, the movement direction of the shutter plate is vertical to the fluid direction, the gate valve can only be fully opened and fully closed and can not be adjusted and throttled, the shutter plate is provided with a rigid shutter plate and an elastic shutter plate, and the gate valve is divided into a rigid gate valve and an elastic gate valve according to the difference of the shutter plates.

However, the existing gate valve used for petroleum transportation has the following disadvantages: the sealing performance has a defect, and due to the fact that the pressure of a pipeline in oil conveying is large, after the gate plate is sealed, oil easily seeps out from the connecting position between the gate plate and the valve body under the action of the pressure, oil leakage is caused, and an improved space exists.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.

Therefore, the utility model discloses the technical scheme who adopts does: a gate valve for damping and preventing oil leakage during oil transportation comprises: main part module and sealing module, the main part module includes the pipeline, the symmetry is fixed at the flange at pipeline both ends, is installed at the pipe inner chamber and stretches out the valve rod of pipeline, rotates the hand wheel of installing on the pipeline top and installs the flashboard in the valve rod bottom.

The sealing module comprises a first sealing ring arranged on the inner wall of the pipeline, a fixed plate fixedly sleeved on the valve rod, a second sealing ring arranged at the bottom end of the fixed plate, a sealing assembly arranged on the inner wall of the pipeline and an extrusion assembly arranged at the bottom end of the flashboard.

The present invention may be further configured in a preferred embodiment as: it has the opening to open on the interior roof of pipeline, the open-ended width equals with the width of flashboard, it has first recess to open on the interior diapire of pipeline, the width of first recess equals with the width of flashboard.

The present invention may be further configured in a preferred embodiment as: the cross section of the first sealing ring is in a right-angled triangle shape and is fixed at the top of the inner wall of the opening, the cross section of the second sealing ring is in a trapezoid shape, and the right-angle surface of the second sealing ring is flush with the right-angle surface of the first sealing ring.

The present invention may be further configured in a preferred embodiment as: and a second groove is formed at the end part of the flashboard.

The present invention may be further configured in a preferred embodiment as: the sealing assembly comprises a base arranged on the inner wall of the first groove and third sealing rings which are symmetrically arranged and integrally fixed on the top end of the base, the edges on the opposite surfaces of the third sealing rings are arranged in a chamfering mode, and semicircular grooves are formed in the top ends, located between the third sealing rings, of the base.

The present invention may be further configured in a preferred embodiment as: the extrusion subassembly is including fixing the extruded article on second recess inner wall and installing the fourth sealing washer on the extruded article keeps away from the flashboard tip, the fourth sealing washer is the semicircle type and gomphosis each other with the semicircle recess.

The present invention may be further configured in a preferred embodiment as: the extruded piece divide into two parts from top to bottom, and upper portion is close to flashboard and transversal isosceles trapezoid of personally submitting, and flashboard and transversal rectangle of personally submitting are kept away from to the lower part.

The present invention may be further configured in a preferred embodiment as: the thickness of the upper portion of the pressing member is slightly smaller than the depth of the second groove.

By adopting the technical scheme, the utility model discloses the beneficial effect who gains does:

1. the utility model discloses in, set up the first sealing washer of transversal three horn shapes of personally submitting through the opening inner wall roof at the pipeline, and install the fixed plate on the valve rod, install the second sealing washer in the bottom of fixed plate, when the flashboard is closed, first sealing washer forms sealedly between flashboard and pipeline, the second sealing washer forms sealedly between fixed plate and first sealing washer, double-deck sealed, the effectual sealing performance who increases between flashboard and the pipeline, second sealing washer cross section sets up and is right trapezoid shape simultaneously, make the second sealing washer seal when the flashboard seals, outstanding part can extrude the tip of first sealing washer, thereby make first sealing washer produce under the effect of extrusion and warp and hug closely on the flashboard, the effectual sealing performance who guarantees first sealing washer under great pressure condition, the practicality has been increased.

2. The utility model discloses in, through offering first recess on the inner wall at the pipeline, and at the interior wall mounting seal assembly of first recess, set up the second recess on the tip of flashboard, and at the interior wall mounting extrusion subassembly of second recess, when the flashboard seals, flashboard tip gomphosis is in the second recess, the third sealing washer in the extrusion subassembly will seal the subassembly simultaneously extrudees to the both sides inner wall of second recess, make the inner wall of third sealing washer and second recess hug closely, and then the effectual leakproofness of having guaranteed between flashboard and the pipeline, thereby the holistic leakproofness of gate valve has been promoted, the effectual problem of gate valve production oil leak in oil transport of having avoided.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the present invention at a in fig. 1;

fig. 3 is a schematic view of the present invention at B in fig. 2;

fig. 4 is a schematic structural view of the sealing assembly of the present invention.

Reference numerals:

100. a body module; 110. a pipeline; 111. an opening; 112. a first groove; 120. a flange; 130. a valve stem; 140. a hand wheel; 150. a shutter plate; 151. a second groove;

200. a sealing module; 210. a first seal ring; 220. a fixing plate; 230. a second seal ring; 240. a closure assembly; 241. a base; 242. a third seal ring; 250. an extrusion assembly; 251. an extrusion; 252. and a fourth seal ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in combination with the following embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

Some embodiments of the present invention are described below with reference to the accompanying drawings, and referring to fig. 1 to 4, a gate valve for damping and preventing oil leakage during oil transportation includes: main part module 100 and sealing module 200, main part module 100 includes pipeline 110, the flange 120 at pipeline 110 both ends is fixed to the symmetry, install at the pipeline 110 inner chamber and stretch out the valve rod 130 of pipeline 110, rotate the hand wheel 140 of installing on pipeline 110 top and install the flashboard 150 in the valve rod 130 bottom, pipeline 110 is used for being connected with the body of carrying oil, make things convenient for oil to carry through pipeline 110, flange 120 is used for connecting, valve rod 130 is used for driving flashboard 150 and removes, hand wheel 140 is used for driving valve rod 130 and rotates, flashboard 150 is used for sealing pipeline 110.

The sealing module 200 is mounted on the main body module 100 and used for increasing the sealing performance between the gate plate 150 and the pipeline 110, and comprises a first sealing ring 210 mounted on the inner wall of the pipeline 110, a fixing plate 220 fixedly sleeved on the valve rod 130, a second sealing ring 230 mounted at the bottom end of the fixing plate 220, a sealing component 240 mounted on the inner wall of the pipeline 110 and a pressing component 250 mounted at the bottom end of the gate plate 150, wherein an opening 111 is formed in the inner top wall of the pipeline 110 and used for telescopic movement of the gate plate 150, the width of the opening 111 is equal to that of the gate plate 150, a first groove 112 is formed in the inner bottom wall of the pipeline 110 and used for embedding with the end of the gate plate 150 and keeping the gate plate 150 uniformly stressed, the width of the first groove 112 is equal to that of the gate plate 150, the fixing plate 220 is fixed on the valve rod 130 and used for moving along with the movement of the valve rod 130 and simultaneously used for mounting the second sealing ring 230 and driving the second sealing ring 230 to move, the cross section of the first sealing ring 210 is in a right-angled triangle shape and fixed on the top of the inner wall of the opening 111 and used for sealing the connection between the pipeline 110 and the valve body, the cross section of the second sealing ring 230, and the right-angled surface of the second sealing ring 230 is flush with the first sealing ring 230, thereby ensuring that the first sealing ring 210 and the first sealing ring 210 can effectively extrude the first sealing ring 150 under the pressure of the sealing ring 150, and the sealing ring 210 can extrude the pressure of the sealing ring 210, and the sealing ring can extrude the first sealing ring 150, and the sealing ring 210, and the sealing ring can extrude the sealing ring 150, and the sealing ring can effectively make the sealing ring 150, and the sealing ring 210.

The sealing assembly 240 comprises a base 241 arranged on the inner wall of the first groove 112 and a third sealing ring 242 which is symmetrically arranged and integrally fixed at the top end of the base 241, the base 241 is used for installing the third sealing ring 242 and simultaneously keeping the stability of the third sealing ring 242, a semicircular groove is formed in the top end of the base 241 between the third sealing ring 242, the edge on the opposite surface of the base 241 is in a chamfer angle arrangement relative to the third sealing ring 242, the extrusion assembly 250 is convenient to extrude, the end part of the flashboard 150 is provided with a second groove 151, the extrusion assembly 250 comprises an extrusion part 251 fixed on the inner wall of the second groove 151 and a fourth sealing ring 252 installed on the end part, far away from the flashboard 150, the extrusion part 251 is divided into an upper part and a lower part, the upper part is close to the flashboard 150 and has an isosceles trapezoid cross section, the upper part is used for extruding the third sealing ring 242 on the two sides, the third sealing ring 242 is attached to the inner wall of the second groove 151, the sealing performance is improved, the lower part is far away from the flashboard 150 and has a rectangular cross section for installing the fourth sealing ring 252, the extrusion part has a guiding function, the thickness of the extrusion part is slightly smaller than the depth of the second groove 151 when the third sealing ring 242 enters the inner wall of the second groove 151, the semicircular groove 151, the sealing assembly is prevented from being prematurely extruded groove and the semi-extruded groove, and the semi-sealing assembly 240, and the semi-sealing assembly is prevented from entering into a semi-sealing groove 151, and the semi-sealing assembly is not too early extrusion groove 151.

The utility model discloses a theory of operation and use flow: when the gate valve is used, when the gate valve needs to be closed, the hand wheel 140 is rotated, the gate plate 150 is driven to descend through the valve rod 130, when the end part of the gate plate 150 is embedded in the first groove 112, at the moment, the fixing plate 220 drives the second sealing ring 230 to be tightly attached to the top end of the first sealing ring 210, meanwhile, the protruding part of the second sealing ring 230 extrudes the end part of the first sealing ring 210, the first sealing ring 210 deforms under the action of extrusion force and is tightly attached to the gate plate 150, the sealing performance of the top part of the gate plate 150 is maintained, in addition, the third sealing rings 242 on two sides are extruded to the inner walls on two sides of the second groove 151 through the extrusion piece 251, the third sealing rings 242 are tightly attached to the inner wall of the second groove 151, meanwhile, the fourth sealing rings 252 on the extrusion piece 251 are embedded in the semicircular grooves on the base 241, multiple sealing is achieved, and the sealing performance between the gate plate 150 and the inner wall of the pipeline 110 is guaranteed.

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 claims and their equivalents.

Claims

1. A gate valve for damping and preventing oil leakage during oil transportation comprises: the sealing device comprises a main body module (100) and a sealing module (200), and is characterized in that the main body module (100) comprises a pipeline (110), flanges (120) symmetrically fixed at two ends of the pipeline (110), a valve rod (130) installed in an inner cavity of the pipeline (110) and extending out of the pipeline (110), a hand wheel (140) rotatably installed at the top end of the pipeline (110), and a gate plate (150) installed at the bottom end of the valve rod (130);

the sealing module (200) comprises a first sealing ring (210) arranged on the inner wall of the pipeline (110), a fixing plate (220) fixedly sleeved on the valve rod (130), a second sealing ring (230) arranged at the bottom end of the fixing plate (220), a closing assembly (240) arranged on the inner wall of the pipeline (110) and an extrusion assembly (250) arranged at the bottom end of the flashboard (150).

2. The gate valve for damping shock and preventing oil leakage during oil transportation according to claim 1, wherein an opening (111) is formed on an inner top wall of the pipeline (110), the width of the opening (111) is equal to the width of the gate plate (150), a first groove (112) is formed on an inner bottom wall of the pipeline (110), and the width of the first groove (112) is equal to the width of the gate plate (150).

3. The gate valve of claim 1, wherein the first sealing ring (210) has a right-angled triangle shape in cross section and is fixed on the top of the inner wall of the opening (111), the second sealing ring (230) has a trapezoid shape in cross section, and the right-angled surface of the second sealing ring (230) is flush with the right-angled surface of the first sealing ring (210).

4. The gate valve of claim 1, wherein the end of the gate plate (150) is provided with a second groove (151).

5. The gate valve of claim 1, wherein the closing member (240) comprises a base (241) mounted on the inner wall of the first groove (112) and third sealing rings (242) symmetrically arranged and integrally fixed on the top end of the base (241), the edges of the opposite surfaces of the third sealing rings (242) are chamfered, and a semicircular groove is formed at the top end of the base (241) between the third sealing rings (242).

6. The gate valve of claim 1, wherein the extrusion assembly (250) comprises an extrusion member (251) fixed on the inner wall of the second groove (151) and a fourth sealing ring (252) mounted on the end of the extrusion member (251) far away from the gate plate (150), and the fourth sealing ring (252) is semicircular and is mutually embedded with the semicircular groove.

7. The gate valve of claim 6, wherein the extrusion member (251) is divided into an upper portion and a lower portion, the upper portion is close to the gate plate (150) and has an isosceles trapezoid cross section, and the lower portion is far from the gate plate (150) and has a rectangular cross section.

8. The gate valve for damping the leakage of oil during the oil transportation according to claim 6, wherein the thickness of the upper portion of the pressing member (251) is slightly less than the depth of the second groove (151).