CN216896354U

CN216896354U - Double-sealing air bag water hammer eliminator

Info

Publication number: CN216896354U
Application number: CN202220656322.1U
Authority: CN
Inventors: 李映君; 池张平
Original assignee: Zhejiang Izmir Valve Co ltd
Current assignee: Zhejiang Izmir Valve Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-07-05
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses a double-seal air bag water hammer eliminator which comprises a pipe body, a pressure gauge, an inflation valve and a piston, wherein one end of the pipe body is provided with a sealing cover, the other end of the pipe body is provided with an opening, the piston penetrates through the opening to enter an inner cavity of the pipe body, the pressure gauge and the inflation valve are arranged on the sealing cover, the piston is installed in the inner cavity of the pipe body in a sliding mode, one end, far away from the sealing cover, of the pipe body is provided with a slow flow piece, the end face, far away from one side of the pipe body, of the slow flow piece is inwards concave to form a slow flow part, the center of the slow flow part forms a first slow flow groove, the center and the side of the slow flow part are respectively provided with a main flow hole and an auxiliary flow hole, the use stability is ensured, the pressure in the water hammer eliminator is prevented from being too high, the inner wall of the water hammer eliminator is prevented from being broken, and the service life is prolonged.

Description

Double-sealing air bag water hammer eliminator

Technical Field

The utility model belongs to the technical field of water hammer eliminators, and particularly relates to a double-seal air bag water hammer eliminator.

Background

The water hammer eliminator can effectively eliminate the water hammer and irregular water shock wave shock caused by surge which may be generated by various fluids in a transmission system under the condition of not stopping the flow of the fluids, thereby achieving the purpose of eliminating destructive shock waves and protecting.

Among the prior art, there is the water hammer annihilator that adopts gasbag or elastic rubber tube structure, and this kind of annihilator is the simple impact of eliminating rivers and bringing through the shrink or the inflation of gasbag and elastic rubber tube, though also solved the water hammer phenomenon, nevertheless under great rivers impact, thereby gasbag and elastic rubber tube are very easily cracked and become invalid while the pressure in the water hammer annihilator is too big, lead to the water hammer annihilator inner wall to break easily, and life is shorter.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a double-sealed air bag water hammer eliminator.

In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a double containment gasbag water hammer annihilator, includes body, manometer, inflation valve and piston, body one end is provided with sealed lid, and the other end of body is provided with the opening, the piston passes the opening and gets into the body inner chamber, manometer and inflation valve set up on sealed covering, piston slidable mounting is in the body inner chamber, the one end that sealed lid was kept away from to the body is provided with the slow flow piece, the slow flow piece is kept away from a side end face indent of body and is formed the first slow flow groove of slow flow portion and the center of slow flow portion formation, main flow hole and discharge orifice have been seted up respectively to slow flow portion center and side.

As a preferable technical solution of the present invention, the flow slowing member is a rotating body and a diameter of the flow slowing member is equal to a diameter of the pipe body.

In a preferred embodiment of the present invention, a second buffer groove is formed between the buffer inner wall and the buffer portion, and the first buffer groove and the second buffer groove are communicated with each other through the main flow hole and the sub flow hole.

As a preferable aspect of the present invention, the cross section of the flow slowing portion is U-shaped.

In a preferred embodiment of the present invention, the plurality of secondary orifices are uniformly distributed along a circumferential direction of the flow slowing portion, and each of the secondary orifices is inclined from bottom to top.

As a preferable technical scheme of the present invention, a hanging ring is provided on an end face of the sealing cover.

As a preferable technical scheme of the utility model, the end face of the sealing cover is provided with an exhaust valve communicated with the inner cavity of the pipe body.

As a preferred technical scheme of the utility model, the piston comprises a pressing plate and sealing gaskets arranged on two end faces of the pressing plate, an adjusting rod is arranged between the pressing plate and the sealing gaskets, external threads are arranged on the periphery of the adjusting rod, through holes are correspondingly formed in the centers of the pressing plate and the sealing gaskets, and internal threads are arranged in the through holes.

In conclusion, the utility model has the beneficial effects that: buffering through setting up the class piece to the fluid, the fluid at first gets into first slow-flow groove in, through main flowing hole and side flowing hole reposition of redundant personnel entering tube body at last, guarantees stability in use, prevents that the pressure in the water hammer annihilator is too big, leads to water hammer annihilator inner wall to break increase of service life.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic structural view of a buffer member in the present embodiment;

fig. 3 is a schematic structural view of the piston in this embodiment.

Reference numerals: 1. a pipe body; 2. a pressure gauge; 3. an inflation valve; 4. a piston; 5. a sealing cover; 6. an opening; 7. a flow slowing member; 8. a flow slowing section; 9. a first buffer flow groove; 10. a primary flowbore; 11. a bypass orifice; 12. a second flow slowing groove; 13. a hoisting ring; 14. an exhaust valve; 15. pressing a plate; 16. a gasket; 17. and adjusting the rod.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easily understood, the utility model is further described below with reference to the specific embodiments and the attached drawings, but the following embodiments are only the preferred embodiments of the utility model, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, a double-sealed airbag water hammer eliminator comprises a pipe body 1, a pressure gauge 2, an inflation valve 3 and a piston 4, wherein a sealing cover 5 is arranged at one end of the pipe body 1, an opening 6 is arranged at the other end of the pipe body 1, the piston 4 penetrates through the opening 6 to enter an inner cavity of the pipe body 1, the pressure gauge 2 and the inflation valve 3 are arranged on the sealing cover 5, the piston 4 is slidably mounted in the inner cavity of the pipe body 1, a flow slowing member 7 is arranged at one end of the pipe body 1 away from the sealing cover 5, a flow slowing portion 8 is formed in the end surface of one side of the flow slowing member 7 away from the pipe body 1 in a concave manner, a first flow slowing groove 9 is formed in the center of the flow slowing portion 8, a main flow hole 10 and an auxiliary flow hole 11 are respectively formed in the center and the side of the flow slowing member 8, the flow slowing member 7 is a rotary body in the embodiment, the diameter of the flow slowing member 7 is equal to the diameter of the pipe body 1, and the flow slowing member 7 can be more attached to the pipe body 1 when being mounted, the installation is convenient.

Buffering through setting up the piece 7 that slows down, the fluid at first gets into first slow chute 9 in, acts on the piston in getting into body 1 through main orifice 10 and the reposition of redundant personnel of auxiliary orifice 11 at last, reduces fluid impact, guarantees stability in use, prevents that the pressure in the water hammer annihilator is too big, leads to water hammer annihilator inner wall to break increase of service life.

Form second slow-flow groove 12 between slow flow piece 7 inner wall and the slow flow portion 8, first slow-flow groove 9 and second slow-flow groove 12 are through above-mentioned main orifice 10 and the intercommunication of side circulation hole 11, and fluid gets into in second slow-flow groove 12 after first slow-flow groove 9 reposition of redundant personnel, reduces the fluid impact, gets into body 1 at last and acts on piston 4, because piston 4 upper portion is the pressurized gas again, the pressurized gas will form counterwork with piston 4, and piston 4 will be balanced up-and-down motion in the air, has just so eliminated the shock that inhomogeneous shock wave produced.

The cross section of the slow flow part 8 is U-shaped, the inner bottom wall of the first slow flow groove 9 is a smooth curved surface which is correspondingly arranged to be concave, and when fluid enters the first slow flow groove 9, the fluid can be divided to the side edge, so that the fluid transition is smoother.

The auxiliary flow holes 11 are uniformly distributed along the circumferential direction of the slow flow portion 8, and each auxiliary flow hole 11 is obliquely arranged from bottom to top to uniformly divide fluid and reduce the impact force of the fluid.

The end face of the sealing cover 5 is provided with a hanging ring 13, so that subsequent transportation is facilitated.

The end face of the sealing cover 5 is provided with an exhaust valve 14 communicated with the inner cavity of the tube body 1.

Piston 4 includes clamp plate 15 and sets up in the sealed pad 16 of clamp plate 15 both ends face, be provided with between clamp plate 15 and the sealed pad 16 and adjust pole 17, the periphery of adjusting pole 17 is provided with the external screw thread, clamp plate 15 and sealed pad 16 center correspondence have been seted up through-hole and the through-hole in be provided with the internal thread, improve piston 4's sealed sealing performance.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, that the preferred embodiments of the present invention are described in the above embodiments and the description, and not intended to limit the present invention, and that various changes and modifications may be made within the scope of the utility model as claimed, which is defined by the appended claims and their equivalents, without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a double containment gasbag water hammer annihilator, includes body, manometer, inflation valve and piston, body one end is provided with sealed lid, and the other end of body is provided with the opening, the piston passes the opening and gets into the body inner chamber, manometer and inflation valve set up on sealed covering, piston slidable mounting is in the body inner chamber, its characterized in that: the one end that sealed lid was kept away from to the body is provided with the unhurried current piece, the unhurried current piece is kept away from a side end face of body and is inwards sunken to form unhurried current portion and unhurried current portion center and form first unhurried current groove, main flow hole and vice discharge orifice have been seted up respectively to unhurried current portion center and side.

2. The dual sealed bladder water hammer arrestor of claim 1, wherein: the slow flow piece is a rotary body, and the diameter of the slow flow piece is equal to that of the pipe body.

3. The dual sealed bladder water hammer arrestor of claim 1, wherein: and a second buffer groove is formed between the inner wall of the buffer piece and the buffer part, and the first buffer groove and the second buffer groove are communicated through the main flow hole and the auxiliary flow hole.

4. The dual sealed bladder water hammer arrestor of claim 2, wherein: the cross section of the flow slowing part is U-shaped.

5. The dual sealed bladder water hammer arrestor of claim 1, wherein: the auxiliary flow holes are uniformly distributed along the circumferential direction of the slow flow part and are obliquely arranged from bottom to top.

6. The dual sealed bladder water hammer arrestor of claim 1, wherein: the end face of the sealing cover is provided with a hanging ring.

7. The dual sealed bladder water hammer arrestor of claim 1, wherein: the end face of the sealing cover is provided with an exhaust valve communicated with the inner cavity of the tube body.

8. The dual sealed bladder water hammer arrestor of claim 1, wherein: the piston comprises a pressing plate and sealing gaskets arranged on two end faces of the pressing plate, an adjusting rod is arranged between the pressing plate and the sealing gaskets, external threads are arranged on the periphery of the adjusting rod, and the centers of the pressing plate and the sealing gaskets are correspondingly provided with through holes and internal threads are arranged in the through holes.