CN211231801U

CN211231801U - Water hammer-resistant unloading safety valve

Info

Publication number: CN211231801U
Application number: CN201922292912.1U
Authority: CN
Inventors: 吴文渊
Original assignee: Jiangsu Shangvalve Industry Co ltd
Current assignee: Jiangsu Shangvalve Industry Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-11
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a water hammer unloading safety valve, which comprises a water pipe, a connecting unit, a limiting frame and a buoyancy unit; water pipe: the middle part of the water pipe is fixedly connected with the lower end of a buoyancy unit pipe, the interior of the buoyancy unit pipe is communicated with the interior of the water pipe, the upper end of the buoyancy unit pipe is connected with an air exchange cylinder through a connecting unit, the air exchange cylinder is a hollow cylinder with an opening at the lower part, the center of the upper surface of the air exchange cylinder is provided with a ventilation port, and the pressure in the pipeline can be communicated with the external pressure through the ventilation port; a limiting frame: spacing is the loop configuration, spacing is installed on the upper end medial surface of buoyancy cell pipe, and this water hammer unloads a relief valve, and water hammer unloads a relief valve, its simple structure, the water service pipe both ends possess the ring flange, and easy to assemble possess the jam type scavenge port, not fragile simultaneously can communicate with each other with external pressure, prevent that the water hammer from forming, be provided with the dust cover can effectively prevent in the air foreign matter gets into the pipeline.

Description

Water hammer-resistant unloading safety valve

Technical Field

The utility model relates to a hydraulic equipment technical field specifically is a water hammer unloads a relief valve.

Background

The water hammer is a phenomenon that large pressure fluctuation is caused and vibration is caused due to the rapid change of fluid flow in a closed pipeline system (including a pump). Also known as water hammer. The instantaneous pressure can greatly exceed the normal pressure and often produce destructive effects.

At present, the water hammer-proof position-unloading safety valve on the market is opened and closed mechanically at the ventilation position, and ventilation filtering is not arranged.

The mechanical type opens and shuts and uses for a long time, causes the damage easily, and the foreign matter in the air gets into in the pipeline easily.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a water hammer unloads a relief valve, its simple structure, the water service pipe both ends possess the ring flange, easy to assemble possess the jam type scavenge port, not fragile simultaneously can communicate with each other with external pressure, prevent that the water hammer from forming, be provided with the dust cover can effectively prevent in the foreign matter entering pipeline in the air, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a water hammer-resistant position-unloading safety valve comprises a water pipe, a connecting unit, a limiting frame and a buoyancy unit;

water pipe: the middle part of the water pipe is fixedly connected with the lower end of a buoyancy unit pipe, the interior of the buoyancy unit pipe is communicated with the interior of the water pipe, the upper end of the buoyancy unit pipe is connected with an air exchange cylinder through a connecting unit, the air exchange cylinder is a hollow cylinder with an opening at the lower part, the center of the upper surface of the air exchange cylinder is provided with a ventilation port, and the pressure in the pipeline can be communicated with the external pressure through the ventilation port;

a limiting frame: the limiting frame is of an annular structure and is installed on the inner side face of the upper end of each buoyancy unit pipe, the buoyancy plate of each buoyancy unit is placed on the upper surface of the limiting frame, and the limiting frame can limit the falling position of the buoyancy plate.

Further, the linkage unit contains the hexagonal screw, takes a breath a link, buoyancy unit union coupling frame and swivel nut, take a breath a link fixed mounting is in the lower part lateral surface a week of taking a breath the inflator, buoyancy unit union coupling frame fixed mounting is in the upper portion lateral surface a week of buoyancy unit pipe, the round hole has been seted up to the surface correspondence of taking a breath a link and buoyancy unit union coupling frame, upwards pass the round hole on buoyancy unit union coupling frame surface in the upper end of swivel nut, the lower extreme joint of swivel nut is at the lower surface of buoyancy unit union coupling frame, the lower extreme of hexagonal screw passes the round hole on take a breath a link surface and the inside threaded connection of swivel nut.

Furthermore, the buoyancy unit contains buoyancy board, spliced pole, fixed block, floater, mount, the draught hole has evenly been seted up on the surface of buoyancy board, the fixed center that passes the buoyancy board of upper end of spliced pole just slides in the draught, the lower extreme fixed connection of spliced pole is at the upper surface of floater, the mount is U type frame, the floater is placed in the depressed part of mount, both sides are fixed on the internal surface middle part of buoyancy unit pipe through two fixed blocks about the upper end of mount, the upper end of spliced pole rises and to make the draught closed, and the floater rises and drives spliced pole and buoyancy board and rise, and the position of mount restriction floater.

And the water pipe is further provided with a flange plate which is fixedly arranged at the left end and the right end of the water pipe and is connected with an external pipeline through the flange plate.

Further, still include dust cover and dust cover draw-in groove, the upper surface at the gas cylinder is seted up to the dust cover draw-in groove, the dust cover is downwardly opening's hollow cylinder, the side of dust cover is the fretwork form, the lower extreme of dust cover passes through the joint piece joint in the dust cover draw-in groove, and the dust cover filters the air that gets into in the gas cylinder.

Compared with the prior art, the beneficial effects of the utility model are that: this water hammer unloads a relief valve has following benefit:

1. this water hammer unloads a relief valve and has set up the linkage unit, through fastening hexagonal screw and screw sleeve, makes the upper end of buoyancy unit pipe link together with the lower extreme of trading the inflator, through lax hexagonal screw and screw sleeve, makes buoyancy unit pipe and the separation of a section of thick bamboo of taking a breath.

2. The buoyancy unit is arranged, when water exists in the buoyancy unit pipe, the buoyancy of the water pushes the floating ball to rise, the floating ball rises to drive the connecting column and the buoyancy plate to rise, the upper end of the connecting column rises to enable the ventilation opening to be closed, the water circulates normally, when the pipeline generates a water hammer, the floating ball falls to drive the connecting column and the buoyancy plate to fall, the ventilation opening is opened, and the water hammer goes out of the ventilation opening through the ventilation opening in the buoyancy plate

3. This waterproof hammer unloads a relief valve, its simple structure, the water service pipe both ends possess the ring flange, and easy to assemble possesses the jam type scavenge port, and not fragile simultaneously can communicate with each other with external pressure, prevents that the water hammer from forming, is provided with the dust cover and can effectively prevent in the foreign matter entering pipeline in the air.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic structural view of the buoyancy unit of the present invention.

In the figure: 1 water service pipe, 2 buoyancy unit pipes, 3 air exchange cylinders, 4 dust covers, 5 dust cover clamping grooves, 6 connecting units, 61 hexagonal screws, 62 air exchange cylinder connecting frames, 63 buoyancy unit pipe connecting frames, 64 screw sleeves, 7 limiting frames, 8 air exchange ports, 9 buoyancy units, 91 buoyancy plates, 92 connecting columns, 93 fixing blocks, 94 floating balls, 95 fixing frames, 10 flange plates

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. 1-3, the present invention provides a technical solution: a water hammer-proof position-unloading safety valve comprises a water pipe 1, a connecting unit 6, a limiting frame 7 and a buoyancy unit 9;

water pipe 1: the middle part of the water pipe 1 is fixedly connected with the lower end of a buoyancy unit pipe 2, the inside of the buoyancy unit pipe 2 is communicated with the inside of the water pipe 1, the upper end of the buoyancy unit pipe 2 is connected with a ventilation cylinder 3 through a connecting unit 6, the ventilation cylinder 3 is a hollow cylinder with an opening at the lower part, the upper center of the ventilation cylinder 3 is provided with a ventilation port 8, the pressure in a pipeline can be communicated with the external pressure through the ventilation port 8, the connecting unit 6 comprises a hexagonal screw 61, a ventilation cylinder connecting frame 62, a buoyancy unit pipe connecting frame 63 and a screw sleeve 64, the ventilation cylinder connecting frame 62 is fixedly arranged on the lower outer side surface of the ventilation cylinder 3 for a circle, the buoyancy unit pipe connecting frame 63 is fixedly arranged on the upper outer side surface of the buoyancy unit pipe 2 for a circle, the surfaces of the ventilation cylinder connecting frame 62 and the buoyancy unit pipe connecting frame 63 are correspondingly provided with round holes, the upper end of, the lower end of a screw sleeve 64 is clamped on the lower surface of a buoyancy unit pipe connecting frame 63, the lower end of a hexagonal screw 61 penetrates through a round hole in the surface of a ventilation cylinder connecting frame 62 and is connected with internal threads of the screw sleeve 64, the air purifier further comprises a flange plate 10, the flange plate 10 is fixedly arranged at the left end and the right end of a water service pipe 1 and is connected with an external pipeline through the flange plate 10, the air purifier further comprises a dust cover 4 and a dust cover clamping groove 5, the dust cover clamping groove 5 is formed in the upper surface of the ventilation cylinder 3, the dust cover 4 is a hollow cylinder with a downward opening, the side surface of the dust cover 4 is hollowed out, the lower end of the dust cover 4 is clamped in the dust cover;

and a limiting frame 7: the limiting frame 7 is of an annular structure, the limiting frame 7 is installed on the inner side surface of the upper end of the buoyancy unit tube 2, the buoyancy plate 91 of the buoyancy unit 9 is placed on the upper surface of the limiting frame 7, the limiting frame 7 can limit the falling position of the buoyancy plate 91, the buoyancy unit 9 comprises the buoyancy plate 91, a connecting column 92, a fixing block 93, a floating ball 94 and a fixing frame 95, ventilation holes are uniformly formed in the surface of the buoyancy plate 91, the upper end of the connecting column 92 fixedly penetrates through the center of the buoyancy plate 91 and slides in the ventilation hole 8, the lower end of the connecting column 92 is fixedly connected to the upper surface of the floating ball 94, the fixing frame 95 is a U-shaped frame, the floating ball 94 is placed in the concave part of the fixing frame 95, the left side and the right side of the upper end of the fixing frame 95 are fixed on the middle part of the inner surface of the buoyancy unit tube 2 through the two fixing blocks 93, the position of the float 94 is restricted by the fixing bracket 95.

When in use:

when water is in the buoyancy unit pipe 2, the buoyancy of the water pushes the floating ball 94 to rise, the floating ball 94 rises to drive the connecting column 92 and the buoyancy plate 91 to rise, the upper end of the connecting column 92 rises to enable the ventilation port 8 to be closed, the water circulates normally, when the pipeline generates a water hammer, the floating ball 94 falls to drive the connecting column 92 and the buoyancy plate 91 to fall, the ventilation port 8 is opened, and the water hammer goes out from the ventilation port 8 through the ventilation port in the buoyancy plate 91.

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 water hammer unloads a relief valve which characterized in that: comprises a water pipe (1), a connecting unit (6), a limiting frame (7) and a buoyancy unit (9);

water pipe (1): the middle part of the water service pipe (1) is fixedly connected with the lower end of a buoyancy unit pipe (2), the interior of the buoyancy unit pipe (2) is communicated with the interior of the water service pipe (1), the upper end of the buoyancy unit pipe (2) is connected with an air exchange cylinder (3) through a connecting unit (6), the air exchange cylinder (3) is a hollow cylinder with an opening at the lower part, and the center of the upper surface of the air exchange cylinder (3) is provided with a ventilation port (8);

a limiting frame (7): spacing (7) are the loop configuration, spacing (7) are installed on the upper end medial surface of buoyancy unit pipe (2), buoyancy board (91) of buoyancy unit (9) have been placed to the upper surface of spacing (7).

2. The water hammer resistant dump safety valve of claim 1, wherein: connection unit (6) contain hexagonal screw (61), take a breath a connecting frame (62), buoyancy unit pipe link (63) and swivel nut (64), take a breath a connecting frame (62) fixed mounting is in the lower part lateral surface a week of taking a breath a section of thick bamboo (3), buoyancy unit pipe link (63) fixed mounting is in the upper portion lateral surface a week of buoyancy unit pipe (2), the round hole has been seted up to the surface correspondence of taking a breath a connecting frame (62) and buoyancy unit pipe link (63), the upper end of swivel nut (64) upwards passes the round hole on buoyancy unit pipe link (63) surface, the lower extreme joint of swivel nut (64) is at the lower surface of buoyancy unit pipe link (63), the lower extreme of hexagonal screw (61) passes the round hole on taking a breath a connecting frame (62) surface and is connected with the inside thread of swivel nut (64).

3. The water hammer resistant dump safety valve of claim 1, wherein: the buoyancy unit (9) comprises a buoyancy plate (91), a connecting column (92), fixed blocks (93), a floating ball (94) and a fixing frame (95), ventilation holes are uniformly formed in the surface of the buoyancy plate (91), the upper end of the connecting column (92) fixedly penetrates through the center of the buoyancy plate (91) and slides in a ventilation port (8), the lower end of the connecting column (92) is fixedly connected to the upper surface of the floating ball (94), the fixing frame (95) is a U-shaped frame, the floating ball (94) is placed in a concave position of the fixing frame (95), and the left side and the right side of the upper end of the fixing frame (95) are fixed on the middle part of the inner surface of the buoyancy unit pipe (2) through the two fixed blocks (93).

4. The water hammer resistant dump safety valve of claim 1, wherein: the water pipe is characterized by further comprising a flange plate (10), wherein the flange plate (10) is fixedly arranged at the left end and the right end of the water pipe (1).

5. The water hammer resistant dump safety valve of claim 1, wherein: still include dust cover (4) and dust cover draw-in groove (5), the upper surface at trades inflator (3) is seted up in dust cover draw-in groove (5), dust cover (4) are open-down's hollow cylinder, the side of dust cover (4) is the fretwork form, the lower extreme of dust cover (4) passes through the joint piece joint in dust cover draw-in groove (5).