CN209838670U - Damping device for hydraulic end of plunger high-pressure reciprocating pump - Google Patents
Damping device for hydraulic end of plunger high-pressure reciprocating pump Download PDFInfo
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- CN209838670U CN209838670U CN201920353838.7U CN201920353838U CN209838670U CN 209838670 U CN209838670 U CN 209838670U CN 201920353838 U CN201920353838 U CN 201920353838U CN 209838670 U CN209838670 U CN 209838670U
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Abstract
The utility model relates to a high-pressure reciprocating pump field discloses a plunger high-pressure reciprocating pump fluid end damping device, and its technical essential is: the utility model provides a plunger high pressure reciprocating pump fluid end damping device, includes inside base that is equipped with the cavity and the gland of being connected with the base, and during the base passed through threaded connection to hydraulic line, the gland was equipped with the decompression chamber with the cavity intercommunication, and the water inlet of being connected with the cavity is seted up to the link that the gland was kept away from to the base, is equipped with the gasbag in the decompression chamber, is equipped with elastic diaphragm between cavity and the decompression chamber. High pressure water gets into the cavity from the water inlet at every turn, and high pressure water vibrations all can make elastic diaphragm swell, and the elastic diaphragm that swells can extrude the gasbag and take place deformation, and elastic diaphragm and gasbag play the cushioning effect, reduce output pipeline's vibrations degree to the life of extension reciprocating pump hydraulic end.
Description
Technical Field
The utility model belongs to the technical field of the high pressure reciprocating pump technique and specifically relates to a plunger high pressure reciprocating pump fluid end damping device is related to.
Background
At present, the high-pressure reciprocating pump is widely applied to various industries, for example, the high-pressure reciprocating pump is used as a process pump in the petroleum, chemical and fertilizer industries, the water injection pump is used in oil fields and salt mines, the pressure testing pump and the booster pump are used in a steel pipe pressure container, the high-pressure cleaning descaling pump is used in the building, shipbuilding, chemical and other industries, water is supplied to a boiler, a hydraulic machine is used as a transmission source, and when a hydraulic end of the three-plunger high-pressure reciprocating pump works, sine curve fluctuation occurs in high-pressure water along with the reciprocating motion of three plungers, so that great vibration is caused in an output pipeline, the use is influenced, and the connection part of a pipe body is also broken under the long-.
To solve the above problems, the chinese patent with publication number CN205190181U discloses a three-plunger high-pressure reciprocating pump hydraulic end damping device, which has the technical essential that: the water inlet is arranged at the bottom end of the base, threads are arranged on the outer side of the bottom end of the base, the spring and the movable plate are both arranged in the upper cover, one end of the spring is connected with the inner wall of the top of the upper cover, the other end of the spring is connected with the upper end of the movable plate, and the lower end of the movable plate is in contact with the top of the base body; high pressure water gets into the cavity from the water inlet, and high pressure water vibrations can drive the fly leaf motion, with energy conversion to the spring internal energy, along with the absorption and the release of spring internal energy, thereby reduce output pipeline's the degree of vibrations of high pressure water in the pipeline.
Above-mentioned scheme has solved the problem that pipeline vibrations influence reciprocating pump life, but this scheme still has certain drawback, mainly relies on the flexible absorbing effect that realizes of spring among the above-mentioned scheme, nevertheless uses the spring very easily to lose the shock-absorbing capacity because of the cushioning effect of spring weakens for a long time to influence the life of reciprocating pump fluid end.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a plunger high pressure reciprocating pump fluid end damping device, this damping device simple structure, shock attenuation are effectual, be equipped with removable buffer's opening, guarantee damping device's shock attenuation effect to the life of extension reciprocating pump fluid end.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a plunger high pressure reciprocating pump fluid end pressure relief device, including inside vertical base that runs through be equipped with the cavity and with base threaded connection's gland, the base passes through threaded connection to hydraulic line in, be equipped with the decompression chamber with the cavity intercommunication in the gland, the water inlet of being connected with the cavity is seted up to the link that the gland was kept away from to the base, is equipped with the gasbag in the decompression chamber, is equipped with elastic diaphragm between cavity and the decompression chamber.
Through adopting above-mentioned technical scheme, the user is when using this plunger high pressure reciprocating pump hydraulic pressure end damping device, only need with base threaded connection to hydraulic pipeline in, it is internal to make the water under high pressure flow pass through the water inlet inflow, the vibrations of water under high pressure all can make elastic diaphragm to being equipped with the decompression intracavity and bulging at every turn, the elastic diaphragm that swells can extrude the gasbag and make the gasbag take place deformation, after the water under high pressure stops vibrations, the gasbag can resume original state under the flow of its inside gas, and the elastic diaphragm that swells can resume the original state under the extrusion of self elasticity and gasbag, through the buffering of elastic diaphragm and gasbag, can reduce the vibration degree of output pipeline, thereby the life of extension reciprocating pump hydraulic pressure end.
The utility model discloses further set up to: the top end of the base is provided with an annular groove, the gland is in axial threaded connection with the annular groove, and the elastic diaphragm with the diameter equal to that of the annular groove is extruded and fixed to the bottom of the annular groove.
Through adopting above-mentioned technical scheme, elastic diaphragm equals with the annular groove diameter, and after the annular groove threaded connection of gland and base, elastic diaphragm can divide into two parts decompression chamber and cavity with the cavity in the gland inside and the base, makes the water in the cavity can not permeate the decompression intracavity, guarantees the buffering effect that plays that elastic diaphragm can be normal, reduces output pipeline's vibrations degree, prolongs the life of reciprocating pump fluid end.
The utility model discloses further set up to: the side wall of the gland is provided with a transparent visual window.
By adopting the technical scheme, a user can directly observe the service condition of the air bag in the decompression chamber through the visual window, so that whether the air bag needs to be replaced or not is judged, and the use of the user is facilitated.
The utility model discloses further set up to: the top end of the gland is provided with an opening for replacing the air bag and an end cover matched with the opening.
Through adopting above-mentioned technical scheme, after the gasbag in the decompression intracavity is damaged, open the end cover on gland top, the gasbag of renewal through the opening on gland top, the straining end cover for this plunger high pressure reciprocating pump hydraulic end damping device can use for a long time, prolongs the life of reciprocating pump hydraulic end.
The utility model discloses further set up to: the circumference array sets up a plurality of arch on the end cover lateral wall, and the gland wall is equipped with a plurality of shrinkage pools that correspond with the arch, and the arch is chucking mutually with the shrinkage pool on the gland outer wall.
By adopting the technical scheme, the bulges on the end cover of the damping device at the hydraulic end of the plunger high-pressure reciprocating pump are tightly clamped with the concave holes on the gland, so that the situation that the diaphragm swells to enable the air bag to deform and extrude the end cover due to the vibration of high-pressure water is ensured, and the end cover falls off to influence normal use.
The utility model discloses further set up to: a layer of rubber soft cushion is arranged at the contact part of the end cover and the air bag.
Through adopting above-mentioned technical scheme, when the gasbag takes place deformation extrusion end cover, the rubber cushion in the end cover can play buffering, guard action, prevents to cause the damage and influence plunger high pressure reciprocating pump hydraulic end damping device's shock attenuation effect because of gasbag direct contact end cover, prolongs the life of reciprocating pump hydraulic end.
The utility model discloses further set up to: the top end of the gland is provided with an opening for replacing the air bag and a soft plug in threaded connection with the opening.
Through adopting above-mentioned technical scheme, after the gasbag in the decompression intracavity is damaged, unscrew the soft stopper of the opening part on gland top to the gasbag of renewing through this opening, the opening is blocked again in the counter rotation, makes this plunger high pressure reciprocating pump fluid end damping device can use for a long time, prolongs the life of reciprocating pump fluid end.
The utility model discloses further set up to: the top end of the soft plug is provided with a holding handle.
By adopting the technical scheme, when a user needs to replace a new air bag, the handle at the top end of the soft plug is rotated, so that the soft plug can be conveniently and labor-saving opened, and the user can conveniently use the soft plug.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the utility model discloses a pair of plunger high pressure reciprocating pump fluid end pressure relief device, convenient to use not only, the shock attenuation is effectual, is equipped with removable decompression intracavity portion buffer's opening moreover, guarantees this plunger high pressure reciprocating pump fluid end pressure relief device's shock attenuation effect to the life of extension reciprocating pump fluid end.
Drawings
Fig. 1 is a schematic overall sectional structure diagram of a first embodiment of the present invention.
Fig. 2 is a schematic overall sectional structure diagram of a second embodiment of the present invention.
In the figure, 1, a base; 2. an elastic diaphragm; 3. a gland; 4. an air bag; 5. an annular groove; 6. a water inlet; 7. a thread; 8. an opening; 9. an end cap; 10. a rubber cushion; 11. a cavity; 12. a protrusion; 13. concave holes; 14. a soft plug; 15. holding the handle; 16. a reduced pressure chamber.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Example one
Referring to fig. 1, for the utility model discloses a plunger high pressure reciprocating pump fluid end pressure relief device, including inside base 1 that is equipped with cavity 11 and the gland 3 of being connected with base 1, base 1 is connected to in the hydraulic pressure pipeline through screw thread 7, gland 3 is equipped with the decompression chamber 16 with cavity 11 intercommunication, base 1 keeps away from the link of gland 3 and offers the water inlet 6 of being connected with cavity 11, is equipped with gasbag 4 in the decompression chamber 11, is equipped with elastic diaphragm 2 between cavity 11 and the decompression chamber 16, and annular groove 5 has been seted up on base 1's top, gland 3 and 5 axial threaded connection of annular groove to extrude the bottom of fixing annular groove 5 with the elastic diaphragm 2 that diameter size and annular groove 5 equal.
As shown in fig. 1, the side wall of the gland 3 is provided with an elongated transparent viewing window (not shown); the top of gland 3 is equipped with an opening 8 that can supply to change gasbag 4 and an end cover 9 that matches with opening 8, circumference array sets up a plurality of arch 12 on the end cover 9 lateral wall, 3 outer walls of gland are equipped with a plurality of shrinkage pool 13 that correspond with arch 12, shrinkage pool 13 chucking mutually on protruding 12 and the 3 outer walls of gland, and be equipped with one deck rubber cushion 10 with gasbag 4's contact site in end cover 3, the state of gasbag 4 is observed through the rectangular form perspective window (not shown in the figure) of 3 outer walls of end cover, after discovering that gasbag 4 damages can not play the cushioning effect again, open the outside end cover 9 of end cover 3, gasbag 4 from opening 8 renewal.
The implementation principle of the embodiment is as follows: when using plunger high pressure reciprocating pump hydraulic pressure end pressure relief device, be connected to the base 1 in the hydraulic pipeline through the screw thread 7 of base 1 bottom, high pressure water in the hydraulic pipeline passes through water inlet 6 and gets into in the cavity 12, high pressure water vibrations at every turn can drive elastic diaphragm 2 and swell to decompression chamber 16, the gasbag 4 in decompression chamber 16 can be extruded to the elastic diaphragm 2 that swells, play the cushioning effect, after vibrations stop, gasbag 4 can resume original state under its inside gas flow, elastic diaphragm 2 also can resume the original state under the extrusion of self elasticity and gasbag 4, wait for next vibrations to come, continue to repeat above buffer process.
Example two
Referring to fig. 2, the second embodiment of the present invention discloses a plunger high-pressure reciprocating pump hydraulic end pressure reducing device, the structure of which is basically the same as that of the first embodiment, and the difference lies in: the top end of the gland 3 is provided with an opening 8 for replacing the air bag and a soft plug 14 which is in threaded connection with the opening 8.
The implementation principle of the embodiment is as follows: the state of the airbag 4 is observed through a long strip-shaped perspective window (not shown in the figure) on the outer wall of the end cover 3, after the airbag 4 is found to be damaged and can not play a role of buffering any more, a holding handle 15 at the top end of a cork 14 is rotated, the cork 14 is unscrewed, and the airbag 4 is replaced by a new airbag 4 from an opening 8.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a plunger high pressure reciprocating pump fluid end damping device, includes inside base (1) that is equipped with cavity (11) and gland (3) of being connected with base (1), base (1) is connected to in the hydraulic pressure pipeline through screw thread (7), gland (3) be equipped with decompression chamber (16) of cavity (11) intercommunication, base (1) is kept away from it the link of gland (3) seted up with water inlet (6) that cavity (11) are connected, its characterized in that be equipped with gasbag (4) in decompression chamber (16), cavity (11) with be equipped with elastic diaphragm between decompression chamber (16).
2. The plunger high pressure reciprocating pump fluid end damping device of claim 1, wherein: annular groove (5) have been seted up on base (1) top, gland (3) and annular groove (5) axial threaded connection to elastic diaphragm (2) that the diameter size equals with annular groove (5) extrusion is fixed to annular groove (5) bottom.
3. The plunger high pressure reciprocating pump fluid end damping device of claim 2, wherein: and a transparent visual window is arranged on the side wall of the gland (3).
4. The plunger high pressure reciprocating pump fluid end damping device of claim 3, wherein: the top end of the gland (3) is provided with an opening (8) for replacing the air bag (4) and an end cover (9) matched with the opening (8).
5. The plunger high pressure reciprocating pump fluid end damping device of claim 4, wherein: the circumference array has a plurality of arch (12) on end cover (9) lateral wall, gland (3) outer wall is equipped with shrinkage pool (13) that correspond with arch (12), and arch (12) and shrinkage pool (13) on gland (3) outer wall are chucking mutually.
6. The plunger high pressure reciprocating pump fluid end damping device of claim 5, wherein: a layer of rubber cushion (10) is arranged at the contact part of the end cover (9) and the air bag (4).
7. The plunger high pressure reciprocating pump fluid end damping device of claim 3, wherein: the top end of the gland (3) is provided with an opening (8) for replacing the air bag (4) and a soft plug (14) in threaded connection with the opening (8).
8. The plunger high pressure reciprocating pump fluid end damping device of claim 7, wherein: the top end of the soft plug (14) is provided with a holding handle (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920353838.7U CN209838670U (en) | 2019-03-20 | 2019-03-20 | Damping device for hydraulic end of plunger high-pressure reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920353838.7U CN209838670U (en) | 2019-03-20 | 2019-03-20 | Damping device for hydraulic end of plunger high-pressure reciprocating pump |
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| Publication Number | Publication Date |
|---|---|
| CN209838670U true CN209838670U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920353838.7U Active CN209838670U (en) | 2019-03-20 | 2019-03-20 | Damping device for hydraulic end of plunger high-pressure reciprocating pump |
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| CN (1) | CN209838670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263708A (en) * | 2022-07-13 | 2022-11-01 | 德帕姆(杭州)泵业科技有限公司 | Metering pump for high-performance micro-conveying |
-
2019
- 2019-03-20 CN CN201920353838.7U patent/CN209838670U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263708A (en) * | 2022-07-13 | 2022-11-01 | 德帕姆(杭州)泵业科技有限公司 | Metering pump for high-performance micro-conveying |
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