CN214405139U

CN214405139U - Pipeline water-hammer-proof air valve

Info

Publication number: CN214405139U
Application number: CN202120607208.5U
Authority: CN
Inventors: 董小花; 薛飞; 陶先帅; 富友
Original assignee: Sanlianpump Industry Co ltd
Current assignee: Sanlianpump Industry Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-10-15
Anticipated expiration: 2031-03-25

Abstract

The utility model belongs to the technical field of the air valve, concretely relates to pipeline water hammer prevention air valve, including a pipeline water hammer prevention air valve, include: the valve comprises a valve cover, a first valve body and a second valve body, wherein an air vent is arranged at the joint of the valve cover and the first valve body, the first valve body is communicated with the second valve body, a first supporting plate is arranged in the first valve body, a first floating ball is arranged at the upper end of the first supporting plate, a second supporting plate is arranged in the second valve body, a second floating ball is arranged at the upper end of the second supporting plate, liquid through holes are formed in the second floating ball in a staggered mode, a first filtering device is arranged in the air vent, and the first filtering device comprises a threaded rod, a pressing plate, a first filtering screen, a movable ring plate, a supporting spring and a supporting ring plate; the utility model discloses an automatic start-stop of two floaters controls the air admission displacement, has realized admitting air in a large number and has limited the amount of exhaust, has prevented that the production of the shut-off water hammer.

Description

Pipeline water-hammer-proof air valve

Technical Field

The utility model belongs to the technical field of the air valve, concretely relates to pipeline water hammer prevention air valve.

Background

At the initial stage of pipeline water supply, the pipeline is empty, a large amount of air is stored, the pipeline needs an air valve to exhaust the air in the pipeline when being filled with water, at the winding up section of the pipeline, the local water filling speed can be accelerated, the exhaust speed can be correspondingly improved, the pipeline can be strongly impacted due to the overhigh water filling speed, the overhigh water filling speed can easily generate gas-liquid two-phase flow when the air valve exhausts, the gas-liquid two-phase flow most easily causes the air valve to be suddenly closed under the condition that the air is not exhausted, the air valve is generated to close a valve water hammer, the pipeline and equipment are damaged, and pipe explosion accidents can be caused in serious cases. After the pipeline stops supplying water for a period of time, the broken water columns are generated at the fluctuating section of the pipeline, when the water supply is recovered, air existing between the separated water columns is exhausted, if the air is exhausted too fast, the closing speed of the cut-off water columns is fast, and a cut-off water column closing water hammer is easy to generate.

An ideal air valve, its inspiration action should be fast, the exhaust velocity should be appropriate, while guaranteeing the air input in the existing air valve, its displacement will be too big and cause the shut-off to close the water hammer; if the air displacement needs to be ensured, the air inflow is limited, the requirement of the air inflow at the local high point of the pipeline cannot be met, and meanwhile, a large amount of impurities enter the valve body during air inflow, so that the valve port of the micro-exhaust valve is blocked.

SUMMERY OF THE UTILITY MODEL

To the problem among the prior art, the utility model aims to provide a pipeline water hammer prevention air valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a pipe water hammer prevention air valve comprising: the valve comprises a valve cover, a first valve body and a second valve body, wherein an air vent is arranged at the joint of the valve cover and the first valve body, the first valve body is communicated with the second valve body, a first supporting plate is arranged in the first valve body, a first floating ball is arranged at the upper end of the first supporting plate, a second supporting plate is arranged in the second valve body, a second floating ball is arranged at the upper end of the second supporting plate, liquid through holes are formed in the second floating ball in a staggered mode, and a first filtering device is arranged in the air vent;

first filter equipment includes threaded rod, clamp plate, first filter screen, removal crown plate, supporting spring and supporting ring board, the valve gap is located vent department and has seted up the annular, it removes the crown plate and removes crown plate removal in the annular, supporting spring upper end and removal crown plate fixed connection, its lower extreme and supporting ring board fixed connection, first filter screen lower extreme and the contact of removal crown plate upper end, its upper end with the contact of clamp plate lower extreme.

Preferably, the upper end of the threaded rod penetrates through the valve cover and is fixedly connected with the rotating plate, and the threaded rod is in threaded connection with the valve cover.

Preferably, second valve body lower extreme be provided with Z shape pipeline, Z shape pipeline is equipped with first import, second import, be provided with second filter equipment in the Z shape pipeline, second filter equipment sets up including setting up the second filter screen in first import department the third filter screen of second import department, Z shape pipeline lateral wall is provided with the motor, motor output shaft fixedly connected with pivot, first scraper blade of fixedly connected with, second scraper blade in the pivot, first scraper blade and second filter screen contact, second scraper blade and third filter screen contact.

Preferably, the edge of the first scraper and the second scraper is provided with a brush.

Preferably, one end of the rotating shaft, which is far away from the motor, is fixedly provided with three groups of crushing knives.

Compared with the prior art, the utility model discloses following technological effect has:

the utility model provides a pair of pipeline water hammer prevention air valve, automatic start-stop through two floaters controls the air intake and discharge volume, during the exhaust, along with the rising of rivers, first floater rises earlier, plug up first valve body and second valve body connector, rivers enter into in the first valve body through leading to the liquid mouth, the control water flow velocity, reduce the air displacement, first valve body is out of work when admitting air, the air input is unchangeable, a large amount of admitting air and limiting amount exhaust have been realized, the production of the broken stream closing water hammer has been prevented, when admitting air, impurity in the air is avoided in the setting of first filter screen enters into the valve body, make the trace air valve port block up, and when dismantling first filter screen, directly demolish valve gap and first valve body, under supporting spring's effect, directly just can demolish first filter screen, demolish the convenience.

Other features and advantages of the present invention will be described in detail in the following detailed description.

Drawings

Fig. 1 is a schematic structural view illustrating a pipe water-hammer preventing air valve according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a first filter device provided according to an embodiment of the present invention;

fig. 3 shows an enlarged schematic view of a provided in accordance with an embodiment of the present invention;

fig. 4 is a schematic structural view of a second valve body according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second filtering device according to an embodiment of the present invention;

FIG. 6 illustrates a side view schematic of a crush blade provided in accordance with an embodiment of the present invention;

the reference numbers in the figures illustrate: 1. a valve cover; 2. a vent; 3. a first valve body; 4. a first floating ball; 5. a first pallet; 6. a second valve body; 7. a second floating ball; 8. a second pallet; 9. a liquid through hole; 10. rotating the plate; 11. a threaded rod; 12. pressing a plate; 13. a first filter screen; 14. a ring groove; 15. moving the ring plate; 16. a support spring; 17. a support ring plate; 18. a Z-shaped duct; 19. a first inlet; 20. a second inlet; 21. a motor; 22. a second filter screen; 23. a third filter screen; 24. a first squeegee; 25. a second squeegee; 26. a crushing knife; 27. a rotating shaft.

Detailed Description

In order to make the technical means, creation characteristics, achievement purpose and efficacy of the utility model easy to understand and understand, the utility model is further clarified by combining the specific drawings.

It should be noted that, in the present invention, when an element is referred to as being "fixed" to another element, it may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-6, the present invention provides a pipeline water impact preventing air valve, comprising: the valve comprises a valve cover 1, a first valve body 3 and a second valve body 6, wherein an air vent 2 is arranged at the joint of the valve cover 1 and the first valve body 3, the first valve body 3 is communicated with the second valve body 6, a first supporting plate 5 is arranged in the first valve body 3, a first floating ball 4 is arranged at the upper end of the first supporting plate 5, a second supporting plate 8 is arranged in the second valve body 6, a second floating ball 7 is arranged at the upper end of the second supporting plate 8, liquid through holes 9 are formed in the second floating ball 7 in a staggered manner, and a first filtering device is arranged in the air vent 2;

first filter equipment includes threaded rod 11, clamp plate 12, first filter screen 13, removes crown plate 15, supporting spring 16 and supporting ring board 17, valve gap 1 is located 2 departments of blow vent and has seted up annular 14, remove crown plate 15 and remove in annular 14, 16 upper ends of supporting spring and the 15 fixed connection of removal crown plate, its lower extreme and supporting ring board 17 fixed connection, first filter screen 13 lower extreme and the 15 upper end contact of removal crown plate, its upper end with the contact of clamp plate 12 lower extreme.

Specifically, during the exhaust, along with the rising of rivers, first floater 7 rises earlier, plug up first valve body 3 and the 6 connector of second valve body, rivers pass through to lead to in liquid mouth 9 enters into first valve body 3 from second valve body 6, the control rivers velocity of flow, reduce the discharge, first valve body 3 is out of work when admitting air, the air input is unchangeable, the effect of a large amount of admit air and limiting amount exhaust has been realized, the production of the broken flow closing water hammer has been prevented, during the admission, impurity in the air is avoided getting into the valve body in the setting of first filter screen 13, make the trace air valve port block up, and when dismantling first filter screen 13, directly dismantle valve gap 1 and first valve body 3, under supporting spring 16's effect, directly just can dismantle first filter screen, it is convenient to dismantle.

According to the utility model discloses, for the convenience fix

first filter screen

13, 11 upper ends of threaded rod run through 1 fixedly connected with of valve gap and change board 10, threaded

rod

11 and 1 threaded connection of valve gap.

According to the utility model discloses, 6 lower extremes of second valve body be provided with Z shape pipeline 18, Z shape pipeline 18 is equipped with first import 19, second import 20, be provided with second filter equipment in the Z shape pipeline 18, second filter equipment sets up including setting up the second filter screen 22 in first import 19 department the third filter screen 23 of second import 20 department, Z shape pipeline 18 lateral wall is provided with motor 21, motor 21 output shaft fixedly connected with pivot 27, first scraper blade 24 of fixedly connected with, second scraper blade 25 in the pivot 27, first scraper blade 24 and the contact of second filter screen 22, second scraper blade 25 and the contact of third filter screen 23.

Further, according to the utility model discloses the filter mesh efficiency of second filter screen 22 is filter mesh 23's filter screen.

It is specific, through setting up second filter screen 22 and third filter screen 23, impurity layering to in the pipeline filters, avoid impurity jam in the valve body, it is out of work to lead to the air valve, and avoid second filter screen 22 directly to receive the impact, drive first scraper blade 24 through motor 21, second scraper blade 25 strikes on second filter screen 22 and the third filter screen 23, avoid second filter screen 22 and third filter screen 23 to block up, when rivers flow back in the pipeline, bring impurity into the pipeline again, dispel the impurity in the valve body.

According to the utility model discloses, strike off the effect to second filter screen 22 and third filter screen 23 for the increase, first scraper blade 24 and second scraper blade 25 edge be provided with the brush.

According to the utility model discloses, the fixed crushing sword 26 that is provided with of one end that motor 21 was kept away from to pivot 27, crushing sword 26 is provided with three groups, and great pasture and water impurity can block up the valve body in the pipeline, sets up crushing sword 26 and smashes pasture and water, impurity, avoids great impurity to block up the valve body, and crushing sword 26 sets up the multiunit, and crushing effect is better.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A pipe water hammer prevention air valve comprising: the valve cover (1), the first valve body (3) and the second valve body (6), an air vent (2) is arranged at the joint of the valve cover (1) and the first valve body (3), the first valve body (3) is communicated with the second valve body (6), a first supporting plate (5) is arranged in the first valve body (3), a first floating ball (4) is arranged at the upper end of the first supporting plate (5), a second supporting plate (8) is arranged in the second valve body (6), a second floating ball (7) is arranged at the upper end of the second supporting plate (8), liquid through holes (9) are formed in the second floating ball (7) in a staggered mode, and a first filtering device is arranged in the air vent (2);

first filter equipment includes threaded rod (11), clamp plate (12), first filter screen (13), removes crown plate (15), supporting spring (16) and supporting ring board (17), valve gap (1) is located blow vent (2) department and has seted up annular (14), remove crown plate (15) and remove in annular (14), supporting spring (16) upper end and removal crown plate (15) fixed connection, its lower extreme and supporting ring board (17) fixed connection, first filter screen (13) lower extreme and removal crown plate (15) upper end contact, its upper end with clamp plate (12) lower extreme contact.

2. The pipeline water hammer prevention air valve according to claim 1, wherein a rotating plate (10) is fixedly connected to the upper end of the threaded rod (11) through the valve cover (1), and the threaded rod (11) is in threaded connection with the valve cover (1).

3. A pipe scumming-preventing air valve according to claim 1, wherein the second valve body (6) is provided at its lower end with a Z-shaped pipe (18), the Z-shaped pipeline (18) is provided with a first inlet (19) and a second inlet (20), a second filtering device is arranged in the Z-shaped pipeline (18), the second filtering device comprises a second filter screen (22) arranged at the first inlet (19) and a third filter screen (23) arranged at the second inlet (20), a motor (21) is arranged on the side wall of the Z-shaped pipeline (18), the output shaft of the motor (21) is fixedly connected with a rotating shaft (27), the rotating shaft (27) is fixedly connected with a first scraper (24) and a second scraper (25), the first scraper (24) is in contact with a second sieve (22), and the second scraper (25) is in contact with a third sieve (23).

4. The air valve for preventing pipe water hammer according to claim 3, wherein the first scraper (24) and the second scraper (25) are provided with brushes at their edges.

5. The pipe water hammer prevention air valve according to claim 3, wherein the end of the rotating shaft (27) far away from the motor (21) is fixedly provided with three groups of crushing blades (26), and the three groups of crushing blades (26) are arranged.