CN212479547U - Plunger assembly with cooling function for plunger pump - Google Patents
Plunger assembly with cooling function for plunger pump Download PDFInfo
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- CN212479547U CN212479547U CN202021048787.6U CN202021048787U CN212479547U CN 212479547 U CN212479547 U CN 212479547U CN 202021048787 U CN202021048787 U CN 202021048787U CN 212479547 U CN212479547 U CN 212479547U
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Abstract
The utility model discloses a plunger component for plunger pump with cooling function, which comprises a plunger and a stuffing box sleeved on the plunger, wherein a stuffing sealing component is arranged between the stuffing box and the plunger, the outer end of the stuffing seal is pressed by a stuffing press cover, a first cooling box body and a second cooling box body are sleeved outside the stuffing box along the axial direction, a first cooling ring cavity is formed between the first cooling box body and the stuffing box, a second cooling ring cavity is formed between the second cooling box body and the stuffing box, the utility model can respectively cool different positions of the plunger by respectively injecting different cooling media into the two cooling ring cavities, the injected cooling media can flow out of the ring cavity only after flowing through the whole ring cavity after entering the corresponding ring cavity, the flow path of the cooling media is longest, the cooling effect is best, thereby effectively preventing the high temperature of a hydraulic end from being transmitted to a power end through the plunger, thereby having good protection effect on the power end.
Description
Technical Field
The utility model relates to a plunger pump technical field, concretely relates to plunger subassembly for plunger pump with cooling function.
Background
The plunger pump is an important device of a hydraulic system, and realizes oil absorption and oil pressing by changing the volume of a sealed working cavity through the reciprocating motion of a plunger in a cylinder body. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions with high pressure, large flow and flow needing regulation, such as hydraulic machines, engineering machinery and ships.
In the exploitation project of shale gas, the plunger pump is widely applied to oil transportation, and for some high-temperature oil, as the hydraulic end and the power end of the traditional plunger pump are directly connected, the high temperature of the traditional plunger pump is easily transmitted to the power end from the hydraulic end, and the adverse effect is caused on the power end.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a plunger subassembly for plunger pump with cooling function.
The technical scheme is as follows: the utility model provides a plunger subassembly for plunger pump with cooling function, includes plunger and the stuffing box of suit on the plunger, the stuffing box with be equipped with packing seal assembly between the plunger, this packing seal assembly's outer end is compressed tightly by gland, its key lies in: the outside of stuffing box is equipped with first cooling box and second cooling box along its axial cover, first cooling box with form first cooling ring chamber between the stuffing box, the second cooling box with form second cooling ring chamber between the stuffing box, first cooling ring chamber is connected with first cooling medium admission pipe and first cooling medium discharge pipe, second cooling ring chamber is connected with second cooling medium admission pipe and second cooling medium discharge pipe.
By adopting the technical scheme, the plunger assembly is positioned between the hydraulic end and the power end of the plunger pump during use, wherein the temperature of the hydraulic end is higher, and the cooling media are respectively filled into the first cooling ring cavity and the second cooling ring cavity, so that different positions of the plunger can be respectively cooled, and the high temperature of the hydraulic end is prevented from being transmitted to the power end through the plunger, and therefore, the power end is well protected.
Preferably, the method comprises the following steps:
the first cooling box body is supported outside the stuffing box through a first supporting block, and the first cooling ring cavity is divided into cavities which are disconnected from the head to the tail by the first supporting block;
a first cooling medium inlet hole and a first cooling medium outlet hole are formed in the first supporting block, the first cooling medium inlet pipe is connected with the first cooling medium inlet hole and communicated with the head end of the first cooling ring cavity through the first cooling medium inlet hole, and the first cooling medium outlet pipe is connected with the first cooling medium outlet hole and communicated with the tail end of the first cooling ring cavity through the first cooling medium outlet hole;
the second cooling box body is supported on the outer side of the stuffing box through a second supporting block, and the second cooling ring cavity is divided into cavities which are disconnected end to end by the second supporting block;
and a second cooling medium inlet hole and a second cooling medium outlet hole are formed in the second supporting block, the second cooling medium inlet pipe is connected with the second cooling medium inlet hole and communicated with the head end of the second cooling ring cavity through the second cooling medium inlet pipe, and the second cooling medium outlet pipe is connected with the second cooling medium outlet hole and communicated with the tail end of the second cooling ring cavity through the second cooling medium outlet pipe.
By adopting the technical scheme, the inlets and the outlets of the two cooling media are respectively positioned at the head end and the tail end of the corresponding ring cavity, the cooling media enter the corresponding ring cavity and then flow out of the ring cavity after flowing through the whole ring cavity, the flow path of the cooling media is longest, and the cooling effect is best.
And steam is introduced into the first cooling ring cavity and is close to the hydraulic end of the plunger pump, cooling water is introduced into the second cooling ring cavity and is close to the power end of the plunger pump, and the second cooling ring cavity surrounds the sealing assembly. By adopting the technical scheme, the introduced steam is steam with lower temperature than the high-temperature oil material conveyed by the plunger pump when in use, and the steam with higher temperature can still have the function of cooling the high-temperature plunger on one hand and has a certain preheating function when the plunger is just started on the other hand, so that the plunger is prevented from being stuck; and the cooling water can play effectual cooling effect to seal assembly, has prolonged its life, also can block heat transfer to the power end simultaneously.
And the second supporting block is also provided with a flushing liquid inlet hole and a flushing liquid outlet hole, and the flushing liquid inlet hole and the flushing liquid outlet hole are both communicated with the space where the packing sealing assembly is located. By adopting the structure, impurities generated by friction between the plunger and the packing sealing assembly are taken out through circulation of flushing fluid, and the service life of the plunger can be effectively prolonged.
An annular clean gap is formed between the stuffing box of the section where the first cooling ring cavity is located and the plunger, and a clean oil injection hole is formed in the stuffing box and communicated with the clean gap. Adopt this structure, can pour into clean grease into in the cleaning oil injection hole, this clean grease can be provided by outside synchronous oiling pump, can form a inclosed grease district between plunger and stuffing box after pouring into clean grease into, can effectively prevent in the hydraulic end cylinder body high temperature oil limit gravel and other magazines entering material seal assembly from causing wearing and tearing.
And a lubricating oil injection hole is also formed in the second supporting block and is communicated with the space where the packing sealing assembly is located. By adopting the structure, lubricating oil can be injected through the lubricating oil injection hole at regular intervals, the purpose of sealing and lubricating the packing seal is achieved, and the service life of the packing seal is prolonged.
Compared with the prior art, the beneficial effects of the utility model are that: different cooling media are respectively filled in the two cooling ring cavities, so that different positions of the plunger can be cooled respectively, the filled cooling media enter the corresponding ring cavities and then flow through the whole ring cavities to flow out of the ring cavities, the flow path of the cooling media is longest, the cooling effect is best, and therefore the high temperature of the hydraulic end can be effectively prevented from being transmitted to the power end through the plunger, and the power end is well protected.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic plan view of the present invention;
FIG. 3 is a cross-sectional view A-A' of FIG. 2;
FIG. 4 is a cross-sectional view B-B' of FIG. 2;
FIG. 5 is a cross-sectional view C-C' of FIG. 2;
FIG. 6 is a cross-sectional view D-D' of FIG. 2;
FIG. 7 is a cross-sectional view E-E' of FIG. 2;
FIG. 8 is a cross-sectional view F-F' of FIG. 2;
FIG. 9 is a sectional view taken along line G-G' of FIG. 2;
fig. 10 is a sectional view H-H' of fig. 2.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
As shown in fig. 1 to 7, a plunger assembly for a plunger pump with a cooling function comprises a plunger 1 and a stuffing box 2 sleeved on the plunger 1, wherein a stuffing seal assembly 3 is arranged between the stuffing box 2 and the plunger 1, the outer end of the stuffing seal assembly 3 is pressed by a stuffing gland 4, and when the plunger assembly is used, the stuffing box 2 is fixedly installed on a hydraulic end cylinder body 23 of the plunger pump, and high-temperature oil is transported through the reciprocating motion of the plunger 1.
The outside of stuffing box 2 is equipped with first cooling box 5 and second cooling box 6 along its axial cover, wherein first cooling box 5 is close to the hydraulic end of plunger pump, and second cooling box 6 is close to the power end of plunger pump, the middle part of stuffing box 2 is protruding outwards and is formed and cut off, thereby will first cooling box 5 and second cooling box 6 are kept apart, the inner wall that cuts off the position has the step of stairstepping, form the confined space between gland 4 and the step of stairstepping, install in this confined space packing seal assembly 3, packing seal assembly 3 is close to the power end of plunger pump.
A first cooling ring cavity 7 is formed between the first cooling box body 5 and the stuffing box 2, the first cooling ring cavity 7 is connected with a first cooling medium inlet pipe 9 and a first cooling medium outlet pipe 10, and steam is introduced into the first cooling ring cavity 7; a second cooling ring cavity 8 is formed between the second cooling box body 6 and the stuffing box 2, the sealing assembly 3 is surrounded by the second cooling ring cavity 8, the second cooling ring cavity 8 is connected with a second cooling medium inlet pipe 16 and a second cooling medium outlet pipe 20, and cooling water is introduced into the second cooling ring cavity 8.
In this embodiment, the first cooling box body 5 is fixedly supported on the outer side of the stuffing box 2 through a first supporting block 14, and the first supporting block 14 divides the first cooling ring cavity 7 into cavities which are disconnected end to end;
a first cooling medium inlet hole 11 and a first cooling medium outlet hole 13 are formed in the first support block 14, the first cooling medium inlet pipe 9 is connected with the first cooling medium inlet hole 11 and communicated with the head end of the first cooling ring cavity 7 through the first cooling medium inlet hole, and the first cooling medium outlet pipe 10 is connected with the first cooling medium outlet hole 13 and communicated with the tail end of the first cooling ring cavity 7 through the first cooling medium outlet hole;
the second cooling box body 6 is fixedly supported on the outer side of the stuffing box 2 through a second supporting block 15, and the second cooling ring cavity 8 is divided into cavities which are disconnected end to end by the second supporting block 15;
a second cooling medium inlet hole 12 and a second cooling medium outlet hole 21 are formed in the second support block 15, the second cooling medium inlet pipe 16 is connected with the second cooling medium inlet hole 12 and communicated with the head end of the second cooling ring cavity 8 through the second cooling medium inlet hole, and the second cooling medium outlet pipe 20 is connected with the second cooling medium outlet hole 21 and communicated with the tail end of the second cooling ring cavity 8 through the second cooling medium outlet hole.
As shown in fig. 8 to 10, the second support block 15 is further provided with a washing liquid inlet hole 18 and a washing liquid outlet hole 19 which are communicated with the outside, and both the washing liquid inlet hole 18 and the washing liquid outlet hole 19 are communicated with the space where the packing seal assembly 3 is located.
An annular clean gap 24 is formed between the plunger 1 and the stuffing box 2 at the section of the first cooling ring cavity 7, a cleaning oil injection hole 22 is formed in the protruding partition of the stuffing box 2, and the cleaning oil injection hole 22 is communicated with the clean gap 24.
As shown in fig. 7, the second support block 15 is further provided with a lubricant injection hole 17 communicating with the outside, and the lubricant injection hole 17 is communicated with the space where the packing seal assembly 3 is located.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (6)
1. The utility model provides a plunger subassembly for plunger pump with cooling function, includes plunger (1) and suit stuffing box (2) on plunger (1), stuffing box (2) with be equipped with packing seal assembly (3) between plunger (1), the outer end of this packing seal assembly (3) is compressed tightly its characterized in that by gland (4): the outside of gland packing (2) is equipped with first cooling box (5) and second cooling box (6) along its axial cover, first cooling box (5) with form first cooling ring chamber (7) between gland packing (2), second cooling box (6) with form second cooling ring chamber (8) between gland packing (2), first cooling ring chamber (7) are connected with first cooling medium admission pipe (9) and first cooling medium discharge pipe (10), second cooling ring chamber (8) are connected with second cooling medium admission pipe (16) and second cooling medium discharge pipe (20).
2. The plunger assembly for a plunger pump having a cooling function according to claim 1, wherein: the first cooling box body (5) is supported outside the stuffing box (2) through a first supporting block (14), and the first cooling ring cavity (7) is divided into cavities which are disconnected end to end by the first supporting block (14);
a first cooling medium inlet hole (11) and a first cooling medium outlet hole (13) are formed in the first supporting block (14), the first cooling medium inlet pipe (9) is connected with the first cooling medium inlet hole (11) and communicated with the head end of the first cooling ring cavity (7) through the first cooling medium inlet hole, and the first cooling medium outlet pipe (10) is connected with the first cooling medium outlet hole (13) and communicated with the tail end of the first cooling ring cavity (7) through the first cooling medium outlet hole;
the second cooling box body (6) is supported on the outer side of the stuffing box (2) through a second supporting block (15), and the second cooling ring cavity (8) is divided into cavities which are disconnected end to end by the second supporting block (15);
and a second cooling medium inlet hole (12) and a second cooling medium outlet hole (21) are formed in the second supporting block (15), the second cooling medium inlet pipe (16) is connected with the second cooling medium inlet hole (12) and communicated with the head end of the second cooling ring cavity (8) through the second cooling medium inlet pipe, and the second cooling medium outlet pipe (20) is connected with the second cooling medium outlet hole (21) and communicated with the tail end of the second cooling ring cavity (8) through the second cooling medium outlet pipe.
3. The plunger assembly for a plunger pump having a cooling function according to claim 1 or 2, wherein: steam is introduced into the first cooling ring cavity (7) and is close to the hydraulic end of the plunger pump, cooling water is introduced into the second cooling ring cavity (8) and is close to the power end of the plunger pump, and the second cooling ring cavity (8) surrounds the packing sealing assembly (3).
4. The plunger assembly for a plunger pump having a cooling function according to claim 2, wherein: and a flushing liquid inlet hole (18) and a flushing liquid outlet hole (19) are further formed in the second supporting block (15), and the flushing liquid inlet hole (18) and the flushing liquid outlet hole (19) are both communicated with the space where the packing sealing assembly (3) is located.
5. The plunger assembly for a plunger pump having a cooling function according to claim 3, wherein: an annular clean gap (24) is formed between the plunger (1) and the stuffing box (2) at the section where the first cooling ring cavity (7) is located, a cleaning oil injection hole (22) is formed in the stuffing box (2), and the cleaning oil injection hole (22) is communicated with the clean gap (24).
6. The plunger assembly for a plunger pump having a cooling function according to claim 2 or 4, wherein: and a lubricating oil injection hole (17) is further formed in the second supporting block (15), and the lubricating oil injection hole (17) is communicated with the space where the packing seal assembly (3) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021048787.6U CN212479547U (en) | 2020-06-09 | 2020-06-09 | Plunger assembly with cooling function for plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021048787.6U CN212479547U (en) | 2020-06-09 | 2020-06-09 | Plunger assembly with cooling function for plunger pump |
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| Publication Number | Publication Date |
|---|---|
| CN212479547U true CN212479547U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021048787.6U Active CN212479547U (en) | 2020-06-09 | 2020-06-09 | Plunger assembly with cooling function for plunger pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577593A (en) * | 2020-06-09 | 2020-08-25 | 阿奥艾斯能源科技成都有限公司 | Plunger assembly structure with cooling function for plunger pump |
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2020
- 2020-06-09 CN CN202021048787.6U patent/CN212479547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577593A (en) * | 2020-06-09 | 2020-08-25 | 阿奥艾斯能源科技成都有限公司 | Plunger assembly structure with cooling function for plunger pump |
| CN111577593B (en) * | 2020-06-09 | 2024-06-21 | 阿奥艾斯能源科技成都有限公司 | Plunger assembly structure with cooling function for plunger pump |
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