CN215410381U

CN215410381U - High-temperature high-pressure check valve

Info

Publication number: CN215410381U
Application number: CN202121870314.9U
Authority: CN
Inventors: 朱正杰; 徐嘉驰; 黄建林; 柯伟芳
Original assignee: Sungo Valves Group Co ltd
Current assignee: Sungo Valves Group Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-04
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a high-temperature and high-pressure check valve, which comprises a check valve main body, wherein a top cover is fixedly arranged above the check valve main body, a rotating block is arranged below the check valve main body, a threaded rod is fixedly arranged on the top end surface of the rotating block, an ejector rod is fixedly arranged on the top end of the threaded rod, flanges are fixedly arranged on two sides of the check valve main body, a feeding pipe is arranged on one side inside the check valve main body, a discharging pipe is arranged on the other side inside the check valve main body, a through hole is arranged in the middle of the inside of the check valve main body, and a sealing gasket is arranged above the through hole. The check valve is provided with the first magnet and the second magnet, so that the through hole can be better sealed by the sealing gasket and the pressing plate, the non-return performance of the check valve is improved, the minimum opening height of the pressing plate is convenient to limit according to needs by arranging the rotating block, the threaded rod and the ejector rod, and the flow can be controlled more uniformly.

Description

High-temperature high-pressure check valve

Technical Field

The utility model relates to the technical field of check valves, in particular to a high-temperature high-pressure check valve.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The check valve and the stop valve are combined for use, and the safety isolation effect can be achieved.

However, the existing high-temperature and high-pressure check valve has poor sealing performance, and the check valve cannot be always kept in an open state for testing according to requirements; thus, the existing requirements are not met, and a high-temperature and high-pressure check valve is proposed for the purpose.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-temperature and high-pressure check valve, which aims to solve the problems that the existing high-temperature and high-pressure check valve in the background art is poor in sealing performance, and the check valve cannot be always kept in an open state for testing according to requirements.

In order to achieve the purpose, the utility model provides the following technical scheme: the high-temperature high-pressure check valve comprises a check valve main body, a top cover is fixedly arranged above the check valve main body, a rotating block is arranged below the check valve main body, a threaded rod is fixedly arranged on the top end surface of the rotating block, the top end of the threaded rod is fixedly provided with an ejector rod, both sides of the check valve main body are fixedly provided with flanges, a feed pipe is arranged on one side in the check valve main body, a discharge pipe is arranged on the other side in the check valve main body, a through hole is arranged at the middle position in the check valve main body, a sealing gasket is arranged above the through hole, the top end surface of the sealing gasket is fixedly provided with a pressing plate, the upper end surface of the pressing plate is fixedly provided with a lifting rod, the inside card of lifter has magnet two, the position that check valve main part inner wall is located the lifter surface is provided with movable storehouse, the top fixed mounting in movable storehouse has magnet one.

Preferably, the sealing ring is sleeved at the position where the outer surface of the threaded rod contacts with the check valve main body, the rotating block, the threaded rod and the ejector rod are fixedly connected through welding, and the diameter of the ejector rod is larger than that of the threaded rod.

Preferably, the position that the terminal surface is close to the outside border under the clamp plate is provided with ring groove, the through-hole top is provided with the sealing ring with ring groove corresponding rigidity, the surface of sealing ring and ring groove's inner wall laminating.

Preferably, the outer surface of the lifting rod is attached to the inner wall of the movable bin, and the lifting rod and the pressing plate are of an integrally formed structure.

Preferably, the size of the sealing gasket is the same as that of the through hole, and the outer surface of the sealing gasket is clamped in the inner wall of the through hole.

Preferably, the feeding pipe is communicated with the discharging pipe through a through hole, and the magnetic poles of the opposite ends of the first magnet and the second magnet are opposite.

Compared with the prior art, the utility model has the beneficial effects that: this high temperature high pressure check valve through being provided with magnetite one and magnetite two, makes sealed pad and clamp plate can be better seal the through-hole to improve check performance of check valve, through being provided with commentaries on classics piece, threaded rod and ejector pin, be convenient for restrict the minimum height that the clamp plate was opened as required, thereby can the controlled flow more even.

Drawings

FIG. 1 is a schematic view of the overall appearance structure of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

FIG. 3 is a schematic view of the overall internal structure of the present invention;

fig. 4 is an enlarged schematic view of fig. 2A.

In the figure: 1. a top cover; 2. a flange; 3. a check valve body; 4. rotating the block; 5. a feed pipe; 6. a threaded rod; 7. a seal ring; 8. a top rod; 9. a first magnet; 10. a movable bin; 11. a lifting rod; 12. a second magnet; 13. a discharge pipe; 14. an annular neck; 15. a seal ring; 16. a gasket; 17. a through hole; 18. and (7) pressing a plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: high temperature high pressure check valve, including check valve main part 3, the top fixed mounting of check valve main part 3 has top cap 1, the below of check valve main part 3 is provided with commentaries on classics piece 4, the top face fixed mounting of commentaries on classics piece 4 has threaded rod 6, the top fixed mounting of threaded rod 6 has ejector pin 8, the equal fixed mounting in both sides of check valve main part 3 has flange 2, one side of the inside of check valve main part 3 is provided with inlet pipe 5, the inside opposite side of check valve main part 3 is provided with discharging pipe 13, the intermediate position of the inside of check valve main part 3 is provided with through-hole 17, the top of through-hole 17 is provided with sealed 16, the top face fixed mounting of sealed 16 has clamp plate 18, the up end fixed mounting of clamp plate 18 has lifter 11, the inside card of lifter 11 has two 12 magnetites, the position that the inner wall of check valve main part 3 is located the lifter 11 surface is provided with movable bin 10, the top fixed mounting of movable bin 10 has one 9.

In the utility model: sealing washer 7 has been cup jointed with the position of check valve main part 3 contact to the surface of threaded rod 6, changes piece 4, threaded rod 6 and ejector pin 8 and passes through welded fastening and be connected, and the diameter of ejector pin 8 is greater than the diameter of threaded rod 6, avoids threaded rod 6 and ejector pin 8 to drop from the inside of check valve main part 3.

In the utility model: the position that the terminal surface is close to the outside border under the clamp plate 18 is provided with ring groove 14, and the through-hole 17 top has sealing ring 15 with the corresponding fixed mounting in position of ring groove 14, and the surface of sealing ring 15 and the inner wall laminating of ring groove 14 improve the leakproofness of through-hole 17 and clamp plate 18.

In the utility model: the outer surface of the lifting rod 11 is attached to the inner wall of the movable bin 10, the lifting rod 11 and the pressing plate 18 are of an integrally formed structure, and the lifting rod 11 slides up and down in the movable bin 10 to drive the pressing plate 18 to move up and down.

In the utility model: the size of the gasket 16 is the same as that of the through hole 17, and the outer surface of the gasket 16 is caught in the inner wall of the through hole 17 so that the through hole 17 can be sealed by the gasket 16.

In the utility model: the feeding pipe 5 is communicated with the discharging pipe 13 through the through hole 17, and the magnetic poles of the opposite ends of the first magnet 9 and the second magnet 12 are opposite, so that the first magnet 9 pushes the second magnet 12 downwards, and the poor sealing performance caused by insufficient gravity of the lifting rod 11 and the pressing plate 18 is avoided.

The working principle is as follows: during the use, install check valve main part 3 through flange 2, the material gets into the inside of check valve main part 3 from inlet pipe 5, upwards promote clamp plate 18, the outside discharge of rethread discharging pipe 13, when not using, magnet one 9 and two 12 repulsions of magnet, thereby make two 12 downstream magnets, two 12 magnets pass through lifter 11 with clamp plate 18 pushing down, make sealed 16 and the laminating of the inner wall of through-hole 17, sealing ring 15 card is in ring groove 14's inner wall, thereby make through-hole 17 keep sealed, open clamp plate 18 when needs, avoid causing clamp plate 18 to reciprocate because the not enough of inlet pipe 5 internal pressure and influence the velocity of flow, can be through rotating rotary block 4, the height of adjustment ejector pin 8, thereby the minimum flow of opening clamp plate 18 limits.

In summary, the following steps: through being provided with two 12 of magnetite 9 and magnetite, make sealed 16 and the clamp plate 18 of filling up can be better seal through-hole 17 to improve the non return performance of check valve, through being provided with commentaries on classics piece 4, threaded rod 6 and ejector pin 8, be convenient for restrict the minimum height of opening of clamp plate 18 as required, thereby can control flow more even.

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.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. High temperature high pressure check valve, including check valve main part (3), its characterized in that: the top of the check valve body (3) is fixedly provided with a top cover (1), the lower part of the check valve body (3) is provided with a rotating block (4), the top end face of the rotating block (4) is fixedly provided with a threaded rod (6), the top end of the threaded rod (6) is fixedly provided with an ejector rod (8), the two sides of the check valve body (3) are fixedly provided with flanges (2), one side of the interior of the check valve body (3) is provided with an inlet pipe (5), the other side of the interior of the check valve body (3) is provided with a discharge pipe (13), the middle position of the interior of the check valve body (3) is provided with a through hole (17), a sealing gasket (16) is arranged above the through hole (17), the top end face of the sealing gasket (16) is fixedly provided with a pressing plate (18), and the upper end face of the pressing plate (18) is fixedly provided with a lifting rod (11), the inside card of lifter (11) has second magnet (12), the position that check valve main part (3) inner wall is located lifter (11) surface is provided with movable storehouse (10), the top fixed mounting in movable storehouse (10) has first magnet (9).

2. The high temperature, high pressure check valve of claim 1, wherein: the sealing ring (7) is sleeved at the position, where the outer surface of the threaded rod (6) is in contact with the check valve main body (3), the rotating block (4), the threaded rod (6) and the ejector rod (8) are fixedly connected through welding, and the diameter of the ejector rod (8) is larger than that of the threaded rod (6).

3. The high temperature, high pressure check valve of claim 1, wherein: the position that the terminal surface is close to the outside border under clamp plate (18) is provided with ring groove (14), through-hole (17) top and the corresponding fixed position of ring groove (14) install sealing ring (15), the surface of sealing ring (15) and the inner wall laminating of ring groove (14).

4. The high temperature, high pressure check valve of claim 1, wherein: the outer surface of the lifting rod (11) is attached to the inner wall of the movable bin (10), and the lifting rod (11) and the pressing plate (18) are of an integrally formed structure.

5. The high temperature, high pressure check valve of claim 1, wherein: the size of the sealing gasket (16) is the same as that of the through hole (17), and the outer surface of the sealing gasket (16) is clamped in the inner wall of the through hole (17).

6. The high temperature, high pressure check valve of claim 1, wherein: the feeding pipe (5) is communicated with the discharging pipe (13) through a through hole (17), and the magnetic poles of one ends, opposite to the magnetic poles of the first magnet (9) and the second magnet (12), are opposite.