CN211693655U

CN211693655U - High-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve

Info

Publication number: CN211693655U
Application number: CN201922198010.1U
Authority: CN
Inventors: 刘雪芬; 王志敏; 叶棋书
Original assignee: Lishui Spark Valve Co ltd
Current assignee: Lishui Spark Valve Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-10-16
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a two-way check valve that ends of high temperature high pressure Y type self sealss, including valve body and disk seat, the inside of valve body is equipped with the valve clack, the top fixed connection valve rod of valve clack, the outside of valve rod is equipped with the case, the case is the symmetric distribution form, the top of case is equipped with the self sealss gasket, the cushion is installed at the top of self sealss gasket. This high temperature high pressure Y type self sealss two-way stop check valve, adopt pressure self-tightening formula seal structure through the inside at the valve body, the better problem of traditional check valve inside sealing performance not strong of having solved, holistic sealing performance is just better when inner chamber pressure in the valve body is high more, and the inside valve clack of valve body adopts whole journey direction, the guide surface build-up welding antifriction alloy simultaneously, wear resistance when having promoted the use greatly, whole high temperature high pressure Y type self sealss two-way stop check valve simple structure, can also one valve dual-purpose, the equipment cost is reduced, high functionality, comparatively practical.

Description

High-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve

Technical Field

The utility model relates to a check valve technical field specifically is a high temperature high pressure Y type self sealss two-way check valve.

Background

The valve is a pipeline accessory for opening and closing a pipeline, controlling flow direction, regulating and controlling parameters of a conveyed medium, and can be divided into a shut-off valve, a check valve, a regulating valve and the like according to functions of the valve, wherein the check valve is a valve with a circular opening and closing piece and acts by self weight and medium pressure to block backflow of the medium, belongs to the automatic valve class, and is also called a check valve, a one-way valve, a backflow valve or an isolation valve, and the movement modes of the valve clack are divided into a lifting type and a rotary opening type.

The two-way stop check valve on the current market is most of its inside inner chamber sealing performance not strong when using, and because the inside valve clack of valve body need open and shut closure repeatedly many times, causes the condition of violent wearing and tearing very easily, and the wearability is relatively poor, and the whole valve can appear the condition that life descends rapidly along with the increase of live time, and the functionality is relatively poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a high temperature high pressure Y type self sealss is two-way by check valve has solved two-way by check valve on the current market most of its inside inner chamber sealing performance when using not strong, and because the inside valve clack of valve body need be repeated many times open and shut closed, causes the condition of violent wearing and tearing very easily, and the wearability is relatively poor, and the whole valve can appear along with the increase of live time and the condition that life descends rapidly, the relatively poor problem of functionality.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a two-way check valve that ends of high temperature high pressure Y type self sealss, includes valve body and disk seat, the inside of valve body is equipped with the valve clack, the top fixed connection valve rod of valve clack, the outside of valve rod is equipped with the case, the case is the symmetric distribution form, the top of case is equipped with the self sealss gasket, the cushion is installed at the top of self sealss gasket, the inside of valve body is equipped with packs and presses the cover, the outside of valve body is equipped with support undercarriage dish.

Preferably, six open rings are arranged at the tops of the cushion blocks, and baffles are arranged at the tops of the six open rings.

Preferably, the top of baffle is installed the post cushion, the outside of post cushion is equipped with the screw thread seat, the internally mounted of screw thread seat has hexagon socket head cap screw.

Preferably, the outside of packing the pressure sleeve is equipped with the clamp plate that packs, stud is installed at the top of clamp plate that packs, hexagon nut is installed at stud's top, hexagon nut's inboard is equipped with the gasket.

Preferably, the outside of valve body is equipped with the spliced pole, the flange under the support is installed at the top of spliced pole.

Preferably, the inner side of the lower support flange is provided with a support pipe, the top of the support pipe is provided with an upper support flange, the outer portion of the valve body is provided with an anti-rotation clamping plate, the inner side of the anti-rotation clamping plate is provided with a spring pad, and the top of the valve body is provided with a bevel gear.

(III) advantageous effects

The utility model provides a two-way check valve that ends of high temperature high pressure Y type self sealss. The method has the following beneficial effects:

(1) the high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve has the advantages that the problem that the sealing performance of the interior of the traditional check valve is not high is well solved by adopting the pressure self-tightening sealing structure in the valve body, the overall sealing performance is better when the pressure of an inner cavity in the valve body is higher, the valve clack in the valve body adopts whole-course guiding, meanwhile, the wear-resistant alloy is welded on the guide surface, the wear-resistant performance in use is greatly improved, the whole high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve is simple in structure, can be used for two purposes, the equipment cost is reduced, and the high-temperature high-pressure Y;

(2) this high temperature high pressure Y type self sealss two-way stop check valve, base and valve clack through with the valve body all adopt department taili cobalt base carbide build-up welding to form, holistic motion is sealed the hardness height, it is wear-resisting to have possessed, high temperature resistant, corrosion-resistant, advantages such as anti scotch nature, life-span is longer when using, simultaneously with valve rod through quenching and tempering and surface nitriding treatment, there are good corrosion resistance and anti scotch nature, at last because the integral forging of valve, its intensity is higher than the casting valve far away, the various defects of casting in the past have been changed, the effectual life who guarantees the valve, the functionality is stronger.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the drawing, a valve body-1, a valve clack-2, a valve rod-3, a valve core-4, a self-sealing gasket-5, a cushion block-6, a six-open ring-7, a baffle-8, a column cushion block-9, a threaded seat-10, an inner hexagon bolt-11, a packing pressing sleeve-12, a packing pressing plate-13, a stud-14, a hexagon nut-15, a gasket-16, a connecting column-17, a support lower connecting disc-18, a support pipe-19, a support upper connecting disc-20, an anti-rotation clamping plate-21, a spring cushion-22 and a bevel gear-23.

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, an embodiment of the present invention provides a technical solution: the utility model provides a two-way check valve that ends of high temperature high pressure Y type self sealss, includes valve body 1 and disk seat, the inside of valve body 1 is equipped with valve clack 2, the top fixed connection valve rod 3 of valve clack 2, the outside of valve rod 3 is equipped with case 4, case 4 is the symmetric distribution form, the top of case 4 is equipped with self sealss gasket 5, cushion 6 is installed at the top of self sealss gasket 5, the inside of valve body 1 is equipped with packs and presses cover 12, the outside of valve body 1 is equipped with support undercarriage dish.

The top of cushion 6 is equipped with six ring-opening 7, the top of six ring-opening 7 is equipped with baffle 8, and baffle 8 through being equipped with, the effect that can be better play and block is comparatively practical.

Post cushion 9 is installed at the top of baffle 8, the outside of post cushion 9 is equipped with screw thread seat 10, hexagonal bolt 11 in the internally mounted of screw thread seat 10 through being equipped with post cushion 9 in the bottom of screw thread seat 10, can avoid the violent problem of wearing and tearing that exist when using, and the protectiveness is stronger.

The outside of packing and pressing the cover 12 is equipped with the pressure plate 13 that packs, stud is installed at the top of pressure plate 13, hexagon nut 15 is installed at stud's top, hexagon nut 15's inboard is equipped with gasket 16, and through the pressure plate 13 that packs that is equipped with, can be more compact with packing, and the functional stronger comparatively practical.

The outside of valve body 1 is equipped with spliced pole 17, flange 18 under the support is installed at spliced pole 17's top, and through this spliced pole 17 that is equipped with, intensity when better promotion uses, the practicality is stronger.

The inboard of flange 18 is equipped with support pipe 19 under the support, flange 20 on the support is equipped with at the top of support pipe 19, the externally mounted of valve body 1 has the splint 21 of preventing changeing, the inboard of preventing changeing splint 21 is equipped with spring pad 22, bevel gear 23 is installed at the top of valve body 1, through increasing in the outside of valve body 1 and preventing changeing splint 21, can avoid the valve not by the open by mistake or the mistake is closed when rotatory, and the convenience more operates, and the protectiveness is stronger.

The working principle is as follows: when the high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve is applied, the whole valve body 1 is a fully forged steel Y-shaped stop check valve, the use pressure of the whole valve body is up to 42MPa, the temperature of the whole valve body can be up to 600 ℃, the whole valve body can be used as a stop valve and a check valve in the application process, and the purpose of one-valve dual-purpose is achieved well, so that the equipment cost is greatly reduced, when a pipeline needs to be cut off fluid in use, the valve needs to be in a fully closed state, so that the valve rod 3 and the valve clack 2 are combined into a whole, the fluid is cut off by utilizing the spherical seal of the valve clack 2 and the valve body 1 to play a stop role, then when the pipeline needs to be communicated with a medium, the valve rod 3 of the valve is opened to a fully open position, the valve clack 2 is opened under the action of fluid pressure, the fluid flows from an inlet side to an, the valve is in an open state, the inlet pressure is higher than the outlet pressure, when the inlet side pressure is lower than the outlet side, the fluid on the outlet side reaches the top of the valve clack 2 through the pressure guide hole, the force acting on the top of the valve clack 2 is added with the gravity of the valve clack 2 and the pretightening force of the spring, the force acting on the valve seat is higher than the force acting on the bottom of the valve clack 2 by the fluid on the inlet side, thus the backflow of the fluid can be well prevented, because the pressure self-tightening sealing structure is adopted in the valve body 1, the integral sealing performance is better when the pressure of an inner cavity in the valve body 1 is higher, the valve clack 2 in the valve body 1 adopts whole-course guide, and meanwhile, the wear-resisting alloy is subjected to surface welding by the guide surface, the wear-resisting performance in use is greatly improved, the functionality is stronger, and finally, the base of, make it possess advantages such as wear-resisting, high temperature resistant, corrosion-resistant, anti scotch nature, life-span is longer when using, is simultaneously with valve rod 3 through quenching and tempering and surface nitriding treatment, has good corrosion resistance and anti scotch nature, and because the whole forging of valve, its intensity is higher than the casting valve far away, has changed various defects of casting in the past, the effectual life who guarantees the valve, and the functional is stronger, comparatively practical.

The utility model relates to a valve body 1, a valve clack 2, a valve rod 3, a valve core 4, a self-sealing gasket 5, a cushion block 6, a six-open ring 7, a baffle plate 8, a pillar cushion block 9, a screw seat 10, an inner hexagon bolt 11, a packing pressing sleeve 12, a packing pressing plate 13, a stud 14, a hexagon nut 15, a gasket 16, a connecting column 17, a support lower flange 18, a support pipe 19, a support upper flange 20, an anti-rotation clamping plate 21, a spring cushion 22 and a bevel gear 23, wherein the components are all universal standard components or components known by technicians in the field, the structure and the principle of the components are all known by technicians through technical manuals or conventional experimental methods, the problem solved by the utility model is that the sealing performance of the inner cavity of most of the two-way stop check valves on the market is not strong when in use, and because the valve clack 2 in the valve body 1 needs to be repeatedly opened and closed violently, the, the wear resistance is poor, the whole valve can have the problems of rapid service life decline along with the increase of service time, poor functionality and the like, the utility model better solves the problem of poor internal sealing performance of the traditional check valve by mutually combining the components, the integral sealing performance is better when the pressure of an inner cavity in the valve body 1 is higher, the valve clack 2 in the valve body 1 adopts whole-course guiding, meanwhile, the wear-resistant alloy is welded on the guide surface, the wear-resistant performance in use is greatly improved, the whole high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve has simple structure, can be used for two purposes, reduces the equipment cost, has strong functionality, is formed by welding the base of the valve body 1 and the valve clack 2 by stellite-based hard alloy, and has high integral movement sealing hardness, the valve rod 3 is subjected to quenching and tempering and surface nitriding treatment, so that the valve has good corrosion resistance and scratch resistance, and finally, the strength of the valve is far higher than that of a cast valve due to integral forging of the valve, various defects of the conventional casting are overcome, the service life of the valve is effectively guaranteed, and the valve is high in functionality.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a two-way check valve of ending of high temperature high pressure Y type self sealss which characterized in that: including valve body (1) and disk seat, the inside of valve body (1) is equipped with valve clack (2), top fixed connection valve rod (3) of valve clack (2), the outside of valve rod (3) is equipped with case (4), case (4) are the symmetric distribution form, the top of case (4) is equipped with self sealss gasket (5), cushion (6) are installed at the top of self sealss gasket (5), the inside of valve body (1) is equipped with packs and presses cover (12), the outside of valve body (1) is equipped with support undercarriage dish.

2. The high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve as claimed in claim 1, wherein: six open rings (7) are arranged at the top of the cushion block (6), and a baffle (8) is arranged at the top of each six open ring (7).

3. The high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve as claimed in claim 2, wherein: the top of baffle (8) is installed post cushion (9), the outside of post cushion (9) is equipped with screw thread seat (10), the internally mounted of screw thread seat (10) has hexagon socket head cap screw (11).

4. The high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve as claimed in claim 1, wherein: the outer portion of the packing pressing sleeve (12) is provided with a packing pressing plate (13), the top of the packing pressing plate (13) is provided with a stud, the top of the stud is provided with a hexagon nut (15), and the inner side of the hexagon nut (15) is provided with a gasket (16).

5. The high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve as claimed in claim 1, wherein: the outer portion of the valve body (1) is provided with a connecting column (17), and a support lower connecting disc (18) is installed at the top of the connecting column (17).

6. The high-temperature high-pressure Y-shaped self-sealing bidirectional stop check valve as claimed in claim 5, wherein: the inboard of flange (18) is equipped with flange pipe (19) under the support, the top of flange pipe (19) is equipped with flange (20) on the support, the externally mounted of valve body (1) has the splint (21) of preventing changeing, the inboard of preventing changeing splint (21) is equipped with spring pad (22), bevel gear (23) are installed at the top of valve body (1).