CN222228718U - A methanol pump plunger pair with multi-scheme adaptability - Google Patents
A methanol pump plunger pair with multi-scheme adaptability Download PDFInfo
- Publication number
- CN222228718U CN222228718U CN202421100672.5U CN202421100672U CN222228718U CN 222228718 U CN222228718 U CN 222228718U CN 202421100672 U CN202421100672 U CN 202421100672U CN 222228718 U CN222228718 U CN 222228718U
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- Prior art keywords
- methanol
- plunger
- groove
- sealing groove
- runner
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 261
- 230000008878 coupling Effects 0.000 claims abstract description 17
- 238000010168 coupling process Methods 0.000 claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 63
- 239000010687 lubricating oil Substances 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims 3
- 230000001050 lubricating effect Effects 0.000 abstract description 17
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 9
- 239000000446 fuel Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a methanol pump plunger coupling with multi-scheme adaptability, which comprises a plunger sleeve and a plunger body, wherein a through hole is formed in the plunger sleeve, the plunger body is connected in the through hole in a sliding manner, and a methanol pressurizing cavity is formed at the top of the through hole; the plunger sleeve is internally provided with a methanol runner and a medium runner, the methanol runner is communicated with the first annular groove and is used for discharging liquid in the first annular groove, and the medium runner is communicated with the second annular groove and is used for introducing a lubricating medium into the second annular groove to lubricate the plunger body; the utility model solves the problem that the traditional methanol pump plunger coupling is easy to leak and pollute methanol when different lubricating media are used.
Description
Technical Field
The utility model relates to the technical field of engine parts, in particular to a methanol pump plunger coupling with multi-scheme adaptability.
Background
Under the strong promotion of the 'two carbon' policy, the traditional fossil fuel can not meet the carbon emission requirement, and low-carbon zero-carbon fuels such as methanol, ammonia, hydrogen and the like become the current research hot spot.
Methanol fuel is a mainstream alternative fuel at present by virtue of low price, easy reconstruction of old vessels and the like. However, the technical maturity of the prior methanol fuel injection system is not high, so that the reliability of the product is poor. Moreover, methanol can emulsify the lubricating oil, risking contamination of the entire lubricating oil system, and thus leading to failure of the entire engine. The consequences of loss of power at sea are extremely fatal to the vessel.
In summary, the utility model provides a methanol pump plunger coupling with multi-scheme adaptability, which can meet the technical schemes of various lubricating mediums, and is provided with a multi-stage sealing groove, so that methanol leakage can be avoided.
Disclosure of utility model
The utility model aims to provide a methanol pump plunger coupling piece with multi-scheme adaptability, so as to solve the problem that the traditional methanol pump plunger coupling piece is easy to leak and mutually pollute methanol when using different lubricating mediums.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The methanol pump plunger coupling piece with the multi-scheme adaptability comprises a plunger sleeve and a plunger body, wherein a through hole is formed in the plunger sleeve, the plunger body is connected in the through hole in a sliding manner, and a methanol pressurizing cavity is formed in the top of the through hole;
A first annular groove, a first sealing groove, a second annular groove and a second sealing groove are sequentially formed in the through hole from top to bottom;
The plunger sleeve is internally provided with a methanol runner and a medium runner, the methanol runner is communicated with the first annular groove and is used for discharging liquid in the first annular groove, and the medium runner is communicated with the second annular groove and is used for introducing a lubricating medium into the second annular groove to lubricate the plunger body.
Further, a third sealing groove, a third annular groove and a fourth sealing groove are sequentially formed in the outer peripheral surface of the plunger sleeve from bottom to top, and the third annular groove is located between the third sealing groove and the fourth sealing groove.
Further, one end of the medium flow passage is communicated with the second annular groove, and the other end of the medium flow passage is communicated with a first branch flow passage and a second branch flow passage.
Further, the first branch runner is used for being communicated with the top of the plunger sleeve, and the second branch runner is used for being communicated with the third annular groove.
Further, when the medium runner is used for introducing methanol into the second annular groove to lubricate the plunger body, sealing elements are arranged in the second sealing groove, the third sealing groove and the fourth sealing groove.
Further, when the medium runner is used for introducing lubricating oil into the second annular groove to lubricate the plunger body, sealing elements are arranged in the first sealing groove, the third sealing groove and the fourth sealing groove.
Further, one end of the methanol runner is communicated with the first annular groove, and the other end of the methanol runner is communicated with the top of the plunger sleeve.
Further, the lubricating medium is methanol or lubricating oil.
The utility model has the beneficial effects that:
The methanol flow channel and the medium flow channel are arranged in the plunger sleeve, redundant methanol can flow back and be discharged from the first annular groove along the methanol flow channel, the medium flow channel can be used for introducing various lubricating mediums through the second annular groove to lubricate the plunger body, the first sealing groove and the second sealing groove can be used for sealing the lubricating mediums to prevent the lubricating mediums from polluting methanol fuel or a cam box at the lower end of the plunger, and the reliability and the safety of a system are improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a methanol pump plunger coupling with multiple scheme adaptation in one direction;
FIG. 2 is a schematic cross-sectional view of another direction of a methanol pump plunger coupling with multi-scheme adaptation.
The marks and technical characteristics in the figures:
1. plunger sleeve, 101, through hole, 102, methanol pressurizing cavity;
2. The plunger comprises a plunger body, a first annular groove, a first sealing groove, a second annular groove, a second sealing groove, a first sealing groove, a second sealing groove, a methanol runner, a third sealing groove, a third annular groove, a fourth sealing groove and a third sealing groove, wherein the first sealing groove, the second sealing groove, the third sealing groove, the fourth sealing groove and the fourth sealing groove are respectively formed in the plunger body;
11. a medium flow passage, 111, a first branch flow passage, 112 and a second branch flow passage.
Detailed Description
Embodiments of the present utility model will be described below with reference to the drawings and preferred embodiments, and those skilled in the art will appreciate further advantages and effects of the present utility model from the disclosure herein. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that, when the plunger body 2 slides in the plunger sleeve 1 during normal operation, the operation principle of the plunger body 2 and the plunger sleeve 1 mainly involves sealing and fluid (the fluid of the present utility model is methanol) transmission, and they are generally used in pumps, compressors or other hydraulic systems, and are responsible for transporting the fluid (methanol) from one place to another. When the system starts to work, the plunger body 2 reciprocates in the plunger sleeve 1 under the action of a driving mechanism (such as a cam shaft), and the motion process can be divided into two main stages, namely an inhalation stage and a discharge stage. During the suction phase, the plunger body 2 moves downwards, and this area (corresponding to the volume increase of the methanol pressurizing chamber 102 and the through hole 101 in the following embodiments) forms a certain vacuum or negative pressure, at which time a valve (not shown) communicating with the inlet is opened, allowing the fluid (methanol) to enter, and a valve (not shown) communicating with the outlet is closed, preventing the fluid (methanol) from flowing back. In the discharge stage, the plunger body 2 moves upward, and the fluid (methanol) is compressed and pushed out of the methanol pressurizing chamber 102. At this time, the valve communicating with the outlet is opened to allow the fluid (methanol) to flow out, and the valve communicating with the inlet is closed to prevent the fluid (methanol) from further entering. In this way, the fluid (methanol) is effectively compressed from one location and transported to another.
The embodiment provides a methanol pump plunger matching part with multi-scheme adaptability, which comprises a plunger sleeve 1 and a plunger body 2, wherein a through hole 101 is formed in the plunger sleeve 1, the plunger body 2 is slidably connected in the through hole 101, and a methanol pressurizing cavity 102 is formed in the top of the through hole 101. The through hole 101 is internally provided with a first annular groove 3, a first sealing groove 4, a second annular groove 5 and a second sealing groove 6 from top to bottom in sequence.
In this embodiment, as shown in fig. 1, a methanol runner 7 and a medium runner 11 are disposed in the plunger sleeve 1, one end of the methanol runner 7 (i.e. the bottom end of the methanol runner 7) is communicated with the first ring groove 3, so as to drain the liquid in the first ring groove 3, and the other end of the methanol runner 7 (i.e. the top end of the methanol runner 7) is communicated with the top of the plunger sleeve 1. When the methanol pump works normally, methanol flows into the methanol pressurizing cavity 102 at the upper end of the plunger by the oil inlet valve, the methanol in the cavity is pressurized by the reciprocating motion of the plunger, and when the pressure reaches the opening pressure of the oil outlet valve, the methanol flows out of the oil outlet valve, so that enough high-pressure methanol is provided for the methanol engine, and the excessive methanol which is not discharged after the stroke is finished can flow back to a methanol fuel tank (not shown) along the methanol flow channel 7 by the first annular groove 3 to realize recirculation.
In this embodiment, as shown in fig. 1, the medium flow channel 11 is in communication with the second ring groove 5, and is used for introducing a lubricating medium into the second ring groove 5 to lubricate the plunger body 2. When the plunger is in operation, the lubricating medium adhered to the plunger can lubricate the plunger, and the plunger is prevented from being scratched and damaged due to dry friction with the plunger sleeve 1.
In this embodiment, as shown in fig. 2, the outer peripheral surface of the plunger sleeve 1 is provided with a third seal groove 8, a third ring groove 9, and a fourth seal groove 10 in order from bottom to top, and the third ring groove 9 is located between the third seal groove 8 and the fourth seal groove 10.
In this embodiment, as shown in fig. 2, one end of the medium flow channel 11 (i.e. the bottom end of the medium flow channel 11) is communicated with the second ring groove 5, the other end of the medium flow channel 11 (i.e. the top end of the medium flow channel 11) is communicated with a first branch flow channel 111 and a second branch flow channel 112, the first branch flow channel 111 is used for being communicated with the top of the plunger sleeve 1, and the second branch flow channel 112 is used for being communicated with the third ring groove 9.
In this embodiment, the lubricating medium is methanol or lubricating oil, and of course, in some possible embodiments, the lubricating medium may be diesel or other substances capable of lubricating. When the medium flow passage 11 is used for introducing methanol into the second ring groove 5 to lubricate the plunger body 2, sealing elements are installed in the second sealing groove 6, the third sealing groove 8 and the fourth sealing groove 10. Methanol can self-lubricate the plunger coupling, but methanol can emulsify the lubricating oil, risking contamination of the entire lubricating oil system, and thus causing failure of the entire engine. It is required to install sealing elements in the third sealing groove 8, the fourth sealing groove 10 and the second sealing groove 6 in order to prevent methanol from contaminating the lower end cam box of the plunger. When the medium flow passage 11 is used for introducing lubricating oil into the second ring groove 5 to lubricate the plunger body 2, sealing elements are installed in the first sealing groove 4, the third sealing groove 8 and the fourth sealing groove 10. The third seal groove 8 and the fourth seal groove 10 are installed with seal rings to prevent methanol and lubricating oil from being mixed with each other. The first seal groove 4 is provided with a seal ring to prevent methanol and lubricating oil from polluting each other along the gap of the matching parts. In this embodiment, the sealing element is preferably a sealing ring (e.g. an O-ring or U-ring) to ensure an effective seal.
As can be seen from the detailed description of the above embodiment, the plunger sleeve 1 of the present utility model is provided with the methanol flow channel 7 and the medium flow channel 11, the excessive methanol can flow back and be discharged from the first annular groove 3 along the methanol flow channel 7, the medium flow channel 11 can introduce a plurality of lubricating mediums through the second annular groove 5 to lubricate the plunger body 2, and the first sealing groove 4 and the second sealing groove 6 can seal the lubricating mediums to prevent the lubricating mediums from polluting the methanol fuel or the cam box at the lower end of the plunger, thereby improving the reliability and safety of the system.
The above embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model.
Claims (8)
1. The utility model provides a methanol pump plunger matching parts that possesses multisscheme adaptability, includes plunger sleeve (1) and plunger body (2), through-hole (101) have been seted up in plunger sleeve (1), plunger body (2) sliding connection is in through-hole (101), methanol pressurization chamber (102) have been seted up at the top of through-hole (101), its characterized in that:
A first annular groove (3), a first sealing groove (4), a second annular groove (5) and a second sealing groove (6) are sequentially formed in the through hole (101) from top to bottom;
Be equipped with methyl alcohol runner (7) and medium runner (11) in plunger sleeve (1), methyl alcohol runner (7) with first annular (3) are linked together, are used for with liquid in first annular (3) is discharged, medium runner (11) with second annular (5) are linked together, are used for introducing the lubrication medium in second annular (5) is right plunger body (2) are lubricated.
2. The methanol pump plunger coupling with multi-scheme adaptability according to claim 1, wherein a third sealing groove (8), a third annular groove (9) and a fourth sealing groove (10) are sequentially formed in the outer peripheral surface of the plunger sleeve (1) from bottom to top, and the third annular groove (9) is located between the third sealing groove (8) and the fourth sealing groove (10).
3. The methanol pump plunger coupling with multi-scheme adaptability according to claim 2, wherein one end of the medium flow passage (11) is communicated with the second annular groove (5), and the other end of the medium flow passage (11) is communicated with a first branch flow passage (111) and a second branch flow passage (112).
4. A methanol pump plunger coupling with multiple scheme adaptability according to claim 3, characterized in that the first branch flow passage (111) is used for being communicated with the top of the plunger sleeve (1), and the second branch flow passage (112) is used for being communicated with the third ring groove (9).
5. The methanol pump plunger coupling with multi-scheme adaptability according to claim 2, wherein the medium runner (11) is used for introducing methanol into the second annular groove (5) to lubricate the plunger body (2), and sealing elements are arranged in the second sealing groove (6), the third sealing groove (8) and the fourth sealing groove (10).
6. The methanol pump plunger coupling with multi-scheme adaptability according to claim 2, wherein the medium runner (11) is used for introducing lubricating oil into the second annular groove (5) to lubricate the plunger body (2), and sealing elements are arranged in the first sealing groove (4), the third sealing groove (8) and the fourth sealing groove (10).
7. The methanol pump plunger coupling with multi-scheme adaptability according to claim 1, wherein one end of the methanol runner (7) is communicated with the first annular groove (3), and the other end of the methanol runner (7) is communicated with the top of the plunger sleeve (1).
8. The methanol pump plunger coupling with multi-scheme adaptation of claim 1, wherein the lubrication medium is methanol or lubrication oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421100672.5U CN222228718U (en) | 2024-05-20 | 2024-05-20 | A methanol pump plunger pair with multi-scheme adaptability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421100672.5U CN222228718U (en) | 2024-05-20 | 2024-05-20 | A methanol pump plunger pair with multi-scheme adaptability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222228718U true CN222228718U (en) | 2024-12-24 |
Family
ID=93913753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421100672.5U Active CN222228718U (en) | 2024-05-20 | 2024-05-20 | A methanol pump plunger pair with multi-scheme adaptability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222228718U (en) |
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2024
- 2024-05-20 CN CN202421100672.5U patent/CN222228718U/en active Active
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