CN220957342U - Water hammer eliminator capable of changing inner cavity volume - Google Patents
Water hammer eliminator capable of changing inner cavity volume Download PDFInfo
- Publication number
- CN220957342U CN220957342U CN202322613729.3U CN202322613729U CN220957342U CN 220957342 U CN220957342 U CN 220957342U CN 202322613729 U CN202322613729 U CN 202322613729U CN 220957342 U CN220957342 U CN 220957342U
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- wall
- shell
- sealing
- pipe
- water hammer
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 238000005192 partition Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Pipe Accessories (AREA)
Abstract
The water hammer eliminator capable of changing the inner cavity volume comprises a water inlet connector, wherein a sealing plate extends outwards from the outer edge of the upper end surface of the water inlet connector; the upper surface of the sealing plate is provided with an annular spacing part which is coaxial with the water inlet joint; an inner pipe matched with the spacer part is arranged in the spacer part, and the lower end surface of the inner pipe is attached to the upper surface of the sealing plate; the inner tube is internally provided with an inner cavity; the outer cover of the spacing part is provided with a shell, and the lower surface of the shell is attached to the upper surface of the sealing plate; the upper end of the inner pipe penetrates out of the spacing part upwards, and the inner wall of the upper side of the outer shell shields and seals the pipe orifice of the upper end of the inner pipe; the inner wall of the shell, the outer wall of the inner tube and the upper surface of the spacing part are enclosed to form an auxiliary cavity. The water hammer eliminator capable of changing the inner cavity volume can effectively increase the inner cavity volume without increasing the length, and can directly change the inner cavity volume in the use process, so that the water hammer eliminator can cope with the situation that the water flow impact force suddenly increases.
Description
Technical Field
The utility model relates to a water hammer eliminator, in particular to a water hammer eliminator capable of changing the inner cavity volume.
Background
In a pressure pipeline, the flow rate of water suddenly changes due to some external reason to cause water hammer, the hydraulic phenomenon is called water hammer or water hammer, and the water hammer eliminator can effectively eliminate irregular water hammer wave vibration generated by external water hammer and surge possibly generated by various fluids in a transmission system under the condition that the fluid flow is not required to be stopped, so that destructive shock waves are eliminated, and the protection effect is achieved.
The inner cavity of the traditional water hammer eliminator is actually the inner space of the shell of the water hammer eliminator, the shell of the water hammer eliminator is cylindrical, the barrel opening of the shell is directly connected to the water inlet joint of the water hammer eliminator in a screwed manner, the size of the barrel opening is determined by the size of the inner diameter of the shell, the volume of the inner cavity cannot be increased under the condition that the water inlet joint is not replaced, if the inner diameter of the shell is increased, the barrel opening of the shell cannot be connected to the water inlet joint in a screwed manner, the volume of the inner cavity can be increased only by increasing the length of the shell, and the volume of the water hammer eliminator can be increased along with the increase of the length of the shell, so that the volume of the water hammer eliminator is continuously large, the occupied space is large, and the water delivery system is difficult to be installed in a limited range because of the water delivery system is difficult to use.
In the actual elimination of the water hammer, different water flow impact forces can be encountered, when the water flow impact force is overlarge, even if the inner cavity with smaller volume is extruded by the piston, strong air pressure cannot be formed to oppose the water flow impact force, the effect of eliminating the water hammer cannot be achieved, under the condition, the shell of the water hammer eliminator cannot be directly replaced at all, and the pipeline of the water delivery system can only bear the impact force from water flow, so that damage is caused.
Disclosure of Invention
The utility model aims to solve the prior art problem and provide the water hammer eliminator capable of changing the volume of the inner cavity, which can effectively increase the volume of the inner cavity without increasing the length, and can directly change the volume of the inner cavity in the use process, thereby being capable of successfully coping with the situation that the impact force of water flow suddenly increases.
The technical scheme adopted for solving the technical problems is as follows:
The utility model discloses a water hammer eliminator capable of changing the inner cavity volume, which comprises a water inlet connector, wherein a sealing plate extends outwards from the outer edge of the upper end surface of the water inlet connector; the upper surface of the sealing plate is provided with an annular spacing part which is coaxial with the water inlet joint; an inner pipe matched with the spacer part is arranged in the spacer part, and the lower end surface of the inner pipe is attached to the upper surface of the sealing plate; the inner tube is internally provided with an inner cavity; the outer cover of the spacing part is provided with a shell, and the lower surface of the shell is attached to the upper surface of the sealing plate; the upper end of the inner pipe penetrates out of the spacing part upwards, and the inner wall of the upper side of the outer shell shields and seals the pipe orifice of the upper end of the inner pipe; the inner wall of the shell, the outer wall of the inner tube and the upper surface of the spacing part are enclosed to form an auxiliary cavity; a piston matched with the inner cavity is arranged in the lower part of the inner cavity; the center of the lower surface of the piston is provided with a sealing head, and the sealing head blocks and seals the port at the upper end of the water inlet joint.
A limit pipe is screwed in the pipe orifice at the upper end of the inner pipe; the inner diameter of the limiting pipe is smaller than the diameter of the piston; the outer wall of the upper end of the limiting pipe is provided with a limiting part positioned above the upper end face of the inner pipe; and the center of the upper surface of the piston is provided with an air gathering hole.
The limit part is sleeved with a sealing sleeve which is made of rubber; the upper surface of the sealing sleeve is attached to the inner wall of the upper side of the shell, and the lower surface of the sealing sleeve is attached to the upper end face of the inner tube.
The outer wall of the limiting part is provided with a plurality of screw holes which are uniformly distributed in the circumference; the periphery of the sealing sleeve is provided with a plurality of through holes communicated with the screw holes; a screw rod passes through the through hole and is screwed in the screw hole; the outer end of the screw rod is provided with a rotary handle positioned outside the sealing sleeve.
The outer wall of the piston is provided with a plurality of annular grooves which are uniformly distributed in the axial direction; and a sealing ring matched with the annular groove is arranged in the annular groove.
The inner wall of the water inlet joint and the upper surface of the sealing plate pass through an arc-shaped sealing surface; the sealing head is hemispherical, and the diameter of the sealing head is larger than the inner diameter of the water inlet joint; the surface of the sealing head is attached to the sealing surface.
The lower end of the inner tube is in threaded connection with the spacing part; the lower end of the shell is in threaded connection with the outside of the spacing part.
The beneficial effects of the utility model are as follows:
Compared with the prior art, the water hammer eliminator with the structure capable of changing the inner cavity volume can form the inner cavity through the inner space of the inner pipe, the auxiliary cavity is formed through the space between the inner wall of the shell and the outer wall of the inner pipe, and in normal use, the piston only extrudes the air in the inner cavity, if the air pressure in the inner cavity still cannot effectively eliminate the impact force of water flow, the shell can be rotated to enable the shell to move upwards, so that the auxiliary cavity is communicated with the inner cavity, the actual volume of the inner cavity is effectively increased, and therefore the length of the inner pipe is not required to be changed, the actual volume of the inner cavity can be increased, the situation that the water hammer eliminator occupies too large space due to the fact that the actual volume is increased through the increase of the length is effectively avoided, the installation of the water hammer eliminator is facilitated, and in addition of the inner cavity volume, any part is not required to be removed, the inner cavity volume can be directly changed in the use process of the water hammer eliminator, and the influence of the water flow impact force on a pipeline of a water conveying system is eliminated in the first time, and the pipeline protecting effect is achieved.
Drawings
FIG. 1 is a cross-sectional view of a water hammer eliminator of the present utility model having a variable internal cavity volume;
Fig. 2 is an enlarged view of a portion a of fig. 1;
fig. 3 is a perspective view of the variable lumen volume of the present utility model.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description:
Referring to fig. 1 to 3, the present utility model provides a water hammer eliminator capable of changing the volume of an inner cavity, comprising a water inlet connector 1, wherein a sealing plate 2 extends outwards from the outer edge of the upper end surface of the water inlet connector 1; the upper surface of the sealing plate 2 is provided with an annular spacing part 3, and the spacing part 3 is coaxial with the water inlet joint 1; an inner pipe 4 matched with the spacer part 3 is arranged in the spacer part, and the lower end surface of the inner pipe 4 is attached to the upper surface of the sealing plate 2; the inner tube 4 is internally provided with an inner cavity 5; the outer cover of the spacing part 3 is provided with a shell 6, and the lower surface of the shell 6 is attached to the upper surface of the sealing plate 2; the upper end of the inner tube 4 upwards penetrates out of the spacing part 3, and the inner wall of the upper side of the outer shell 6 shields and seals the tube orifice at the upper end of the inner tube 4; the inner wall of the shell 6, the outer wall of the inner tube 4 and the upper surface of the spacing part 3 are enclosed to form an auxiliary cavity 7; a piston 8 matched with the inner cavity 5 is arranged in the lower part of the inner cavity; the center of the lower surface of the piston 8 is provided with a sealing head 9, and the sealing head 9 blocks and seals the port at the upper end of the water inlet joint 1.
A limiting pipe 10 is screwed in the pipe orifice at the upper end of the inner pipe 4; the inner diameter of the limiting pipe 10 is smaller than the diameter of the piston 8; the outer wall of the upper end of the limiting pipe 10 is provided with a limiting part 11 positioned above the upper end face of the inner pipe 4; the center of the upper surface of the piston 8 is provided with an air gathering hole 12.
The limit part 11 is sleeved with a sealing sleeve 13, and the sealing sleeve 13 is made of rubber; the upper surface of the sealing sleeve 13 is attached to the inner wall of the upper side of the shell 6, and the lower surface of the sealing sleeve 13 is attached to the upper end face of the inner tube 4.
The outer wall of the limit part 11 is provided with a plurality of screw holes 14 which are uniformly distributed in circumference; the periphery of the sealing sleeve 13 is provided with a plurality of through holes 15 communicated with the screw holes 14; a screw 16 passes through the through hole 15 and is screwed in the screw hole 14; the outer end of the screw 16 is provided with a rotary handle 17 positioned outside the sealing sleeve 13.
The outer wall of the piston 8 is provided with a plurality of annular grooves 18 which are uniformly distributed in the axial direction; a sealing ring 19 matched with the annular groove 18 is arranged in the annular groove.
The inner wall of the water inlet joint 1 and the upper surface of the sealing plate 2 are provided with an arc-shaped sealing surface 20; the sealing head 9 is hemispherical, and the diameter of the sealing head 9 is larger than the inner diameter of the water inlet joint 1; the surface of the sealing head 9 is attached to the sealing surface 20.
The lower end of the inner tube 4 is in threaded connection with the inside of the spacing part 3; the lower end of the shell 6 is in threaded connection with the outside of the spacing part 3.
The application method of the utility model is as follows:
The water inlet joint 1 can be directly connected to a pipeline of a water delivery system in a screwed manner to complete the installation of the water hammer eliminator, when the water hammer phenomenon occurs, water flow can generate strong impact force, at the moment, the water flow can directly enter the water inlet joint 1 and impact on the surface of the sealing head 9 upwards, so that the piston 8 is pushed upwards through the sealing head 9, the actual space of the inner cavity 5 inside the inner pipe 4 is continuously compressed along with the upward movement of the piston, meanwhile, the gas inside the inner cavity 5 is continuously extruded, and the pipe orifice at the upper end of the inner pipe 4 is shielded and sealed by the inner wall at the upper side of the outer shell 6, so that after the gas inside the inner cavity 5 is continuously extruded, the air pressure inside the inner cavity 5 can continuously rise to form a high pressure, and the high pressure can be effectively counteracted by the impact force of the piston 8 and the water flow, so that the impact force of the water flow is buffered and eliminated.
If the piston 8 moves upwards along the track of the inner cavity 5 to extrude the gas in the inner cavity 5 to the limit, the impact force of the water flow can not be completely eliminated, the shell 6 can be rotated, because the lower end of the shell 6 is screwed out of the partition part 3, even if the shell 6 moves upwards along the track of the external thread of the outer wall of the partition part 3, the tightness between the lower end of the shell 6 and the partition part 3 can still be ensured, along with the upward movement of the shell 6, the actual space of the auxiliary cavity 7 formed by the surrounding of the inner wall of the shell 6, the outer wall of the inner tube 4 and the upper surface of the partition part 3 becomes larger, the inner wall of the upper side of the shell 6 does not shade and seal the pipe orifice at the upper end of the inner tube 4, the inner cavity 5 can be communicated with the auxiliary cavity 7 through the gap between the inner wall of the upper side of the shell 6 and the upper end surface of the inner tube 4, at the existence of the auxiliary cavity 7 increases the actual volume of the inner cavity 5, along with the increase of the actual volume of the inner cavity 5, the piston 8 can further move upwards, the gas is extruded further, and the impact force of the water flow is further buffered and eliminated.
In summary, the inner space of the inner tube 4 forms the inner cavity 5, the auxiliary cavity 7 is formed by the space between the inner wall of the outer tube 6 and the outer wall of the inner tube 4, the piston 8 only extrudes the air in the inner cavity 5 during normal use, if the air pressure in the inner cavity 5 still cannot effectively eliminate the impact force of water flow, the outer tube 6 can be rotated to enable the outer tube 6 to move upwards, so that the auxiliary cavity 7 is communicated with the inner cavity 5, the actual volume of the inner tube 5 is effectively increased, the actual volume of the inner tube 5 can be increased without changing the length of the inner tube 4, the situation that the space occupied by the water hammer eliminator is too large due to the fact that the actual volume is increased by increasing the length is effectively avoided, the installation of the water hammer eliminator is facilitated, and when the volume of the inner tube 5 is increased, any part is not required to be removed, the volume of the inner cavity 5 can be directly changed during the use of the water hammer eliminator, so that the influence of the water flow impact force on a pipeline of a water delivery system is eliminated at the first time, and the pipeline protection effect is achieved.
The pipe orifice at the upper end of the inner pipe 4 is internally and in threaded connection with a limiting pipe 10, the inner diameter of the limiting pipe 10 is smaller than the diameter of the piston 8, the outer wall at the upper end of the limiting pipe 10 is provided with a limiting part 11 positioned above the upper end face of the inner pipe 4, the center of the upper surface of the piston 8 is provided with an air gathering hole 12, along with the penetration of the auxiliary cavity 7 and the inner cavity 5, the piston 8 can move upwards further along the track of the inner cavity 5, in order to ensure that the piston 8 can reset under the action of compressed air, the upper surface of the piston 8 is required to be prevented from being higher than the upper end face of the inner pipe 4, the upward movement stroke of the piston 8 can be effectively limited by the existence of the limiting pipe 10, after the piston 8 moves upwards to a certain position, the air pressed in the auxiliary cavity 7 can enter the air gathering hole 12 sequentially through the pipe orifice at the upper end of the limiting pipe 10, and finally the piston 8 is pushed upwards to realize downward movement reset of the piston 8.
The limit part 11 overcoat has a seal cover 13, and seal cover 13 is rubber material, and seal cover 13 upper surface is laminated mutually with shell 6 upside inner wall, and seal cover 13 lower surface is laminated mutually with inner tube 4 up end, and seal cover 13's existence not only can effectively improve the leakproofness when shell 6 upside inner wall shields the mouth of pipe of inner tube 4 upper end sealed, and can play the abrasionproof and decrease the effect, avoids limit part 11 lower surface and inner tube 4 up end direct contact to lead to the circumstances of wearing and tearing.
The outer wall of the limiting part 11 is provided with a plurality of screw holes 14 which are uniformly distributed circumferentially, the outer peripheral surface of the sealing sleeve 13 is provided with a plurality of through holes 15 which are communicated with the screw holes 14, a screw rod 16 penetrates through the through holes 15 and is in screwed connection with the screw holes 14, the outer end of the screw rod 16 is provided with a rotary handle 17 which is positioned outside the sealing sleeve 13, the existence of the rotary handle 17 enables the limiting part 11 to have a force application point, so that the limiting part 11 is conveniently forced, the limiting pipe 10 is conveniently rotated, and the disassembly and the assembly of the limiting pipe 10 are facilitated.
The outer wall of the piston 8 is provided with a plurality of annular grooves 18 which are uniformly distributed in the axial direction, sealing rings 19 which are matched with the annular grooves 18 are arranged in the annular grooves 18, the existence of the sealing rings 19 can effectively improve the tightness between the outer wall of the piston 8 and the cavity wall of the inner cavity 5, the condition of air leakage is avoided, and the effect that the buffer elimination effect is influenced due to the air leakage is avoided.
The sealing surface 20 is arranged between the inner wall of the water inlet joint 1 and the upper surface of the sealing plate 2 in an arc shape, the sealing head 9 is hemispherical, the diameter of the sealing head 9 is larger than the inner diameter of the water inlet joint 1, the surface of the sealing head 9 is attached to the sealing surface 20, and the surface of the sealing head 9 is spherical due to the arc shape of the sealing surface 20, so that even if the sealing head 9 is in frequent contact with the sealing surface 20, the two cannot be worn.
The lower end spiro union of inner tube 4 is in interval portion 3, and outer shell 6 lower extreme spiro union is outside interval portion 3, and this kind of fixed mode not only can guarantee the steadiness, and the dismouting of being convenient for can guarantee the leakproofness of fixed position more.
Claims (7)
1. The utility model provides a can change water hammer eliminator of inner chamber volume, includes water inlet joint, its characterized in that: the outer edge of the upper end surface of the water inlet connector extends outwards to form a sealing plate; the upper surface of the sealing plate is provided with an annular spacing part which is coaxial with the water inlet joint; an inner pipe matched with the spacer part is arranged in the spacer part, and the lower end surface of the inner pipe is attached to the upper surface of the sealing plate; the inner tube is internally provided with an inner cavity; the outer cover of the spacing part is provided with a shell, and the lower surface of the shell is attached to the upper surface of the sealing plate; the upper end of the inner pipe penetrates out of the spacing part upwards, and the inner wall of the upper side of the outer shell shields and seals the pipe orifice of the upper end of the inner pipe; the inner wall of the shell, the outer wall of the inner tube and the upper surface of the spacing part are enclosed to form an auxiliary cavity; a piston matched with the inner cavity is arranged in the lower part of the inner cavity; the center of the lower surface of the piston is provided with a sealing head, and the sealing head blocks and seals the port at the upper end of the water inlet joint.
2. A water hammer remover with variable internal cavity volume as claimed in claim 1, wherein: a limit pipe is screwed in the pipe orifice at the upper end of the inner pipe; the inner diameter of the limiting pipe is smaller than the diameter of the piston; the outer wall of the upper end of the limiting pipe is provided with a limiting part positioned above the upper end face of the inner pipe; and the center of the upper surface of the piston is provided with an air gathering hole.
3. A water hammer remover with variable internal cavity volume as claimed in claim 2, wherein: the limit part is sleeved with a sealing sleeve which is made of rubber; the upper surface of the sealing sleeve is attached to the inner wall of the upper side of the shell, and the lower surface of the sealing sleeve is attached to the upper end face of the inner tube.
4. A water hammer remover with variable internal cavity volume as claimed in claim 3, wherein: the outer wall of the limiting part is provided with a plurality of screw holes which are uniformly distributed in the circumference; the periphery of the sealing sleeve is provided with a plurality of through holes communicated with the screw holes; a screw rod passes through the through hole and is screwed in the screw hole; the outer end of the screw rod is provided with a rotary handle positioned outside the sealing sleeve.
5. A water hammer remover with variable internal cavity volume as claimed in claim 1, wherein: the outer wall of the piston is provided with a plurality of annular grooves which are uniformly distributed in the axial direction; and a sealing ring matched with the annular groove is arranged in the annular groove.
6. A water hammer remover with variable internal cavity volume as claimed in claim 1, wherein: the inner wall of the water inlet joint and the upper surface of the sealing plate pass through an arc-shaped sealing surface; the sealing head is hemispherical, and the diameter of the sealing head is larger than the inner diameter of the water inlet joint;
the surface of the sealing head is attached to the sealing surface.
7. A water hammer remover with variable internal cavity volume as claimed in claim 1, wherein: the lower end of the inner tube is in threaded connection with the spacing part; the lower end of the shell is in threaded connection with the outside of the spacing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322613729.3U CN220957342U (en) | 2023-09-25 | 2023-09-25 | Water hammer eliminator capable of changing inner cavity volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322613729.3U CN220957342U (en) | 2023-09-25 | 2023-09-25 | Water hammer eliminator capable of changing inner cavity volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220957342U true CN220957342U (en) | 2024-05-14 |
Family
ID=90977860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322613729.3U Active CN220957342U (en) | 2023-09-25 | 2023-09-25 | Water hammer eliminator capable of changing inner cavity volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220957342U (en) |
-
2023
- 2023-09-25 CN CN202322613729.3U patent/CN220957342U/en active Active
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