CN204371641U - The seal arrangement of cylinder-and-piston type reciprocating pump - Google Patents
The seal arrangement of cylinder-and-piston type reciprocating pump Download PDFInfo
- Publication number
- CN204371641U CN204371641U CN201420739462.0U CN201420739462U CN204371641U CN 204371641 U CN204371641 U CN 204371641U CN 201420739462 U CN201420739462 U CN 201420739462U CN 204371641 U CN204371641 U CN 204371641U
- Authority
- CN
- China
- Prior art keywords
- hole section
- seal arrangement
- packing
- hole
- plunger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims abstract description 73
- 210000004907 gland Anatomy 0.000 claims description 31
- 238000000034 method Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model provides a kind of seal arrangement of cylinder-and-piston type reciprocating pump, comprise: packing box (10), there is the first through hole, the second hole section that first through hole comprises the first hole section and is communicated with the first hole section, the aperture of the first hole section is greater than the aperture of the second hole section, the plunger (20) of cylinder-and-piston type reciprocating pump is located in the first through hole, and and form receiving cavity between the first hole section; Hold down gag, is arranged on the end of the first hole section, and has the second through hole wearing plunger (20); Seal arrangement also comprises: packing (30), is arranged in receiving cavity, and the first end of packing (30) is compressed by hold down gag, and the second end position of packing (30) is fixedly fastened on the fixed support portion in receiving cavity.Easily damage is caused to plunger after the technical solution of the utility model can solve the spring breakage in seal arrangement of the prior art effectively, greatly shorten the problem in the working life of plunger.
Description
Technical field
The utility model relates to high pressure reciprocating pump technical field, in particular to a kind of seal arrangement of cylinder-and-piston type reciprocating pump.
Background technique
In oil field operation, high-pressure plunger type reciprocating pump is widely used as the water injection pump in oil field.In the prior art, cylinder-and-piston type reciprocating pump often needs to arrange packing seal arrangement to the plunger in pump.Above-mentioned packing_seal device comprises gland for packing box, gland liner, packing, packing box, packing box flange etc.Wherein, in order to play certain buffer function for gland liner when tight gland for packing box, packing box inside is generally all provided with spring.
Due to the plunger stroke distance in cylinder-and-piston type reciprocating pump, thus cause the area of contact of the packing in packing_seal device and plunger large.When pump is when moving reciprocatingly, spring bears larger lateral impact forces, and spring easily reaches fatigue limit and ruptures.Because spring is arranged on the inside of packing box, staff is difficult to judge whether it ruptures, and then can not clear up the disintegrating slag of spring breakage generation in time, causes disintegrating slag to rub mutually with plunger, causes plunger to damage and scraps.This situation can make the life-span of plunger greatly shorten, and causes great waste, and cost of material straight line rises.
Model utility content
Main purpose of the present utility model is the seal arrangement providing a kind of cylinder-and-piston type reciprocating pump, easily causes damage to plunger, greatly shorten the problem in the working life of plunger after solving the spring breakage in seal arrangement of the prior art.
To achieve these goals, the utility model provides a kind of seal arrangement of cylinder-and-piston type reciprocating pump, comprise: packing box, there is the first through hole, the second hole section that first through hole comprises the first hole section and is communicated with the first hole section, the aperture of the first hole section is greater than the aperture of the second hole section, and the plunger of cylinder-and-piston type reciprocating pump is located in the first through hole, and and form receiving cavity between the first hole section; Hold down gag, is arranged on the end of the first hole section, and has the second through hole wearing plunger; Seal arrangement also comprises: packing, is arranged in receiving cavity, and the first end of packing is compressed by hold down gag, and the second end position of packing is fixedly fastened on the fixed support portion in receiving cavity.
Further, hold down gag comprises gland, and gland is removably disposed in the end of the first hole section, and gland comprises lid and sidewall, and the second through hole is arranged on lid.
Further, sidewall is provided with internal thread, the outer surface of packing box is provided with the outside thread suitable with internal thread.
Further, hold down gag also comprises gland liner, and the two ends of gland liner coordinate with lid and packing respectively, and the partial outer face of gland liner and the hole wall of the first hole section fit.
Further, gland liner is provided with collar flange towards one end of lid, and two end faces of collar flange match with the end face of lid and packing box respectively.
Further, be provided with the guide ring be set on plunger in receiving cavity, the ladder surface that one end of guide ring and the first hole section and the second hole section are formed fits, and the other end of guide ring forms the fixed support portion of the second end supporting packing.
Further, seal arrangement also comprises joint, and joint is arranged on the end of the second hole section.
Further, joint is adpting flange.
Further, the cross section of packing is rectangle.
Application the technical solution of the utility model, be provided with packing in the receiving cavity formed between the first hole section and plunger of packing box, the first end of packing is compressed by hold down gag, and the second end position of packing is fixedly fastened on the fixed support portion in receiving cavity.Under the pressuring action of hold down gag, above-mentioned packing is in full state in receiving cavity.Because the packing being in full state has certain elasticity, when tight hold down gag, above-mentioned packing can play certain buffer function to hold down gag.Therefore, packing can substitute the spring arranged in packing box completely and use, thus the disintegrating slag that can effectively avoid spring breakage to produce causes the phenomenon of damage to occur to plunger, extends the working life of plunger.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment according to seal arrangement of the present utility model.
Wherein, above-mentioned accompanying drawing comprises the following drawings mark:
10, packing box; 20, plunger;
30, packing; 41, gland;
42, gland liner; 421, collar flange;
50, guide ring; 60, joint.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
It is noted that following detailed description is all exemplary, be intended to provide further instruction to the application.Unless otherwise, all technology used herein and scientific terminology have the identical meanings usually understood with the application person of an ordinary skill in the technical field.
It should be noted that used term is only to describe embodiment here, and be not intended to the illustrative embodiments of restricted root according to the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative is also intended to comprise plural form, in addition, it is to be further understood that, " comprise " when using term in this manual and/or " comprising " time, it indicates existing characteristics, step, operation, device, assembly and/or their combination.
It should be noted that, term " first ", " second " etc. in the specification of the application and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as the embodiment example of the application described herein if with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
For convenience of description, here can usage space relative terms, as " ... on ", " in ... top ", " at ... upper surface ", " above " etc., be used for the spatial relation described as a device shown in the figure or feature and other devices or feature.Should be understood that, space relative terms is intended to comprise the different azimuth in use or operation except the described in the drawings orientation of device.Such as, " in other devices or structure below " or " under other devices or structure " will be positioned as after if the device in accompanying drawing is squeezed, being then described as the device of " above other devices or structure " or " on other devices or structure ".Thus, exemplary term " in ... top " can comprise " in ... top " and " in ... below " two kinds of orientation.This device also can other different modes position rotating 90 degree or be in other orientation, and relatively describe space used here and make respective explanations.
As shown in Figure 1, the seal arrangement of the cylinder-and-piston type reciprocating pump of the present embodiment comprises packing box 10 and hold down gag.Packing box 10 has the first through hole, the second hole section that first through hole comprises the first hole section and is communicated with the first hole section, the aperture of the first hole section is greater than the aperture of the second hole section, and the plunger 20 of cylinder-and-piston type reciprocating pump is located in the first through hole, and and forms receiving cavity between the first hole section.Hold down gag is arranged on the end of the first hole section, and has the second through hole wearing plunger 20.Above-mentioned seal arrangement also comprises packing 30.Packing 30 is arranged in receiving cavity, and the first end of packing 30 is compressed by hold down gag, and the second end position of packing 30 is fixedly fastened on the fixed support portion in receiving cavity.
The seal arrangement of application the present embodiment, packing 30 is provided with in the receiving cavity formed between the first hole section and plunger 20 of packing box 10, the first end of packing 30 is compressed by hold down gag, and the second end position of packing 30 is fixedly fastened on the fixed support portion in receiving cavity.Under the pressuring action of hold down gag, above-mentioned packing 30 is in full state in receiving cavity.Because the packing 30 being in full state has certain elasticity, when tight hold down gag, above-mentioned packing 30 can play certain buffer function to hold down gag.Therefore, packing 30 can substitute the spring arranged in packing box completely and use, thus the disintegrating slag that can effectively avoid spring breakage to produce causes the phenomenon of damage to occur to plunger, extends the working life of plunger.
As shown in Figure 1, in the seal arrangement of the present embodiment, hold down gag comprises gland 41, and gland 41 is removably disposed in the end of the first hole section, and gland 41 comprises lid and sidewall, and the second through hole is arranged on lid.Gland 41 is set in the end of the first hole section as the part of hold down gag, while can playing the effect compressing packing 30, can also prevent dust from entering in packing box 10.In addition, the dismountable setting of gland 41 can make replacing packing 30 more convenient.
As shown in Figure 1, in the seal arrangement of the present embodiment, sidewall is provided with internal thread, the outer surface of packing box 10 is provided with the outside thread suitable with internal thread.The structure be threaded is simple, connects reliable, convenient disassembly.
As shown in Figure 1, in the seal arrangement of the present embodiment, hold down gag also comprises gland liner 42, and the two ends of gland liner 42 coordinate with lid and packing 30 respectively, and the partial outer face of gland liner 42 and the hole wall of the first hole section fit.When tight hold down gag, said structure can make packing 30 consolidation more.Meanwhile, gland liner 42 wraps plunger 20, also can reduce the wearing and tearing of plunger 20, extends the life-span of plunger 20.
As shown in Figure 1, in the seal arrangement of the present embodiment, gland liner 42 is provided with collar flange 421 towards one end of lid, and two end faces of collar flange 421 match with the end face of lid and packing box 10 respectively.Collar flange 421 is between the lid of gland 41 and packing box 10, can play the effect of sealing after compression.
As shown in Figure 1, in the seal arrangement of the present embodiment, be provided with the guide ring 50 be set on plunger 20 in receiving cavity, the ladder surface that one end of guide ring 50 and the first hole section and the second hole section are formed fits, and the other end of guide ring 50 forms the fixed support portion of the second end supporting packing 30.Guide ring 50 can prevent plunger 20 from colliding with the box body of packing box 10 and rubbing in movement process.
It should be noted that, being used for the fixed support portion of the second end supporting packing 30 can be the end face of above-mentioned guide ring 50, also can be the first hole section of packing box 10 and the ladder surface of the second hole section formation.
As shown in Figure 1, in the seal arrangement of the present embodiment, seal arrangement also comprises joint 60, and joint 60 is arranged on the end of the second hole section.Joint 60 is used for connecting the cylinder body of seal arrangement and cylinder-and-piston type reciprocating pump.
As shown in Figure 1, in the seal arrangement of the present embodiment, joint 60 is adpting flange.Adpting flange connects reliable, and structure is simple, is easy to realize.
As shown in Figure 1, in the seal arrangement of the present embodiment, the cross section of packing 30 is rectangle.In existing sealing material, the cross section of packing 30 is generally rectangle, good seal performance.It should be noted that, the concrete size in the cross section of packing 30 can be selected according to the size of the receiving cavity formed between the first hole section of packing box 10 and plunger 20.
As can be seen from the above description, the disintegrating slag that the utility model the above embodiments can avoid spring breakage to produce effectively causes the phenomenon of damage to occur to plunger, extends the working life of plunger.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a seal arrangement for cylinder-and-piston type reciprocating pump, comprising:
Packing box (10), there is the first through hole, the second hole section that described first through hole comprises the first hole section and is communicated with described first hole section, the aperture of described first hole section is greater than the aperture of described second hole section, the plunger (20) of cylinder-and-piston type reciprocating pump is located in described first through hole, and and form receiving cavity between described first hole section;
Hold down gag, is arranged on the end of described first hole section, and has the second through hole wearing described plunger (20);
It is characterized in that, described seal arrangement also comprises:
Packing (30), is arranged in described receiving cavity, and the first end of described packing (30) is compressed by described hold down gag, and the second end position of described packing (30) is fixedly fastened on the fixed support portion in described receiving cavity.
2. seal arrangement according to claim 1, it is characterized in that, described hold down gag comprises gland (41), described gland (41) is removably disposed in the end of described first hole section, described gland (41) comprises lid and sidewall, and described second through hole is arranged on described lid.
3. seal arrangement according to claim 2, is characterized in that, described sidewall is provided with internal thread, and the outer surface of described packing box (10) is provided with the outside thread suitable with described internal thread.
4. seal arrangement according to claim 3, it is characterized in that, described hold down gag also comprises gland liner (42), the two ends of described gland liner (42) coordinate with described lid and described packing (30) respectively, and the partial outer face of described gland liner (42) and the hole wall of described first hole section fit.
5. seal arrangement according to claim 4, it is characterized in that, described gland liner (42) is provided with collar flange (421) towards one end of described lid, and two end faces of described collar flange (421) match with the end face of described lid and described packing box (10) respectively.
6. seal arrangement according to claim 1, it is characterized in that, the guide ring (50) be set on described plunger (20) is provided with in described receiving cavity, the ladder surface that one end of described guide ring (50) and described first hole section and described second hole section are formed fits, and the other end of described guide ring (50) forms the described fixed support portion of the second end supporting described packing (30).
7. seal arrangement according to claim 1, is characterized in that, described seal arrangement also comprises joint (60), and described joint (60) is arranged on the end of described second hole section.
8. seal arrangement according to claim 7, is characterized in that, described joint (60) is adpting flange.
9. seal arrangement according to claim 1, is characterized in that, the cross section of described packing (30) is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739462.0U CN204371641U (en) | 2014-11-28 | 2014-11-28 | The seal arrangement of cylinder-and-piston type reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420739462.0U CN204371641U (en) | 2014-11-28 | 2014-11-28 | The seal arrangement of cylinder-and-piston type reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371641U true CN204371641U (en) | 2015-06-03 |
Family
ID=53327866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420739462.0U Expired - Fee Related CN204371641U (en) | 2014-11-28 | 2014-11-28 | The seal arrangement of cylinder-and-piston type reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804458A (en) * | 2016-02-05 | 2020-10-23 | 固瑞克明尼苏达有限公司 | Fluid pump leak transfer |
-
2014
- 2014-11-28 CN CN201420739462.0U patent/CN204371641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804458A (en) * | 2016-02-05 | 2020-10-23 | 固瑞克明尼苏达有限公司 | Fluid pump leak transfer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 |