CN205025856U - Single -stage natural gas compression cylinder - Google Patents
Single -stage natural gas compression cylinder Download PDFInfo
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- CN205025856U CN205025856U CN201520786413.7U CN201520786413U CN205025856U CN 205025856 U CN205025856 U CN 205025856U CN 201520786413 U CN201520786413 U CN 201520786413U CN 205025856 U CN205025856 U CN 205025856U
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Abstract
The utility model discloses a single -stage natural gas compression cylinder, include: go up cylinder, lower cylinder and lie in the uide bushing between cylinder, the lower cylinder, go up the cylinder, the cylinder is respectively and pass through flange joint between the uide bushing down, the other end of going up the cylinder has last cylinder cap through flange joint, the other end of cylinder has lower cylinder cap through flange joint down, the compression cylinder still includes piston rod, upper piston and lower piston, air cavity, last oil pocket, lower air cavity and lower oil pocket in the formation, still install proximity switch and lower proximity switch on the uide bushing, it all has the proximity switch safety cover with lower proximity switch outside to go up proximity switch, through bolt fixed connection between proximity switch safety cover and the uide bushing. In this way, the utility model has the advantages of simple and reasonable structure, have that the driving chain is short, the motion less, few, the maintenance simple to operate of vulnerable part, the noise is little, the reliability is high, efficient advantage.
Description
Technical field
The utility model relates to natural gas compression equipment technical field, particularly relates to a kind of single-stage natural gas compressing cylinder.
Background technique
Compressed natural gas (CompressedNaturalGas is called for short CNG) finger pressure is reduced to pressure and is more than or equal to 10MPa and the gaseous natural gas being not more than 25MPa, is rock gas pressurization and stores in a reservoir with gaseous state.Compressed natural gas is a kind of desirable automobile-used alternative energy source, and its application technology reaches its maturity through many decades development.The features such as it is low that it has cost, high efficiency, pollution-free, and use safety is convenient, demonstrate powerful development potentiality just day by day.
The compression of rock gas needs to use compressor, uses traditional mechanical compressor in a large number at present, complex structure, transmission chain length, and movement parts is many, and easily damaged parts is many, and maintenance and installation is more difficult, and vibration is comparatively large, and noise is high, and reliability is low, and efficiency is low.
Model utility content
The technical problem that the utility model mainly solves is to provide a kind of single-stage natural gas compressing cylinder, simple and reasonable, have that Transmitted chains is short, movement parts is few, few easy workout part, easy maintenance and installation, noise is little, reliability is high, efficiency is high advantage.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: provide a kind of single-stage natural gas compressing cylinder, comprise: upper cylinder barrel, lower cylinder barrel and the guide sleeve between upper cylinder barrel, lower cylinder barrel, described upper cylinder barrel, lower cylinder barrel pass through Flange joint respectively and between guide sleeve, the other end of described upper cylinder barrel has upper cylinder cover by Flange joint, and the other end of described lower cylinder barrel has lower cylinder cap by Flange joint;
Described compression cylinder also comprises piston rod, described piston rod runs through guide sleeve, and the two ends of piston rod lay respectively in cylinder barrel and in lower cylinder barrel, the upper end of described piston rod is equipped with upper piston, form upper gas chamber between described upper piston and upper cylinder cover, form upper oil cavitie between described upper piston and guide sleeve, the lower end of described piston rod is equipped with lower piston, form lower air chamber between described lower piston and lower cylinder cap, between described lower piston and guide sleeve, form lower oil cavitie;
Described upper cylinder cover offers the enterprising gas port and upper air outlet that are connected with upper gas chamber, described lower cylinder cap offers the lower suction port be connected with lower air chamber and lower air outlet;
Described guide sleeve have the upper filler opening and upper oil outlet that are connected with upper oil cavitie; described guide sleeve also have the lower filler opening and lower oil outlet that are connected with lower oil cavitie; described guide sleeve is also provided with proximity switch and lower proximity switch; described upper proximity switch and lower proximity switch outside all have proximity switch safety cover, are bolted to connection between described proximity switch safety cover and guide sleeve.
In the utility model preferred embodiment, described piston rod two ends all have a step, are provided with cushion collar between described upper piston and step, and described cushion collar outside has setting sleeve, be provided with cushion collar between described lower piston and step, described cushion collar outside has setting sleeve.
In the utility model preferred embodiment, there is between described upper cylinder cover and upper cylinder barrel back-up ring and O-ring seals, between described lower cylinder cap and lower cylinder barrel, there is back-up ring and O-ring seals.
In the utility model preferred embodiment, be provided with bar seal ring between described guide sleeve and piston rod, the both sides of described bar seal ring are respectively provided with a guide ring.
In the utility model preferred embodiment, between described upper piston and upper cylinder barrel, porose seal ring and guide ring are set, between described lower piston and lower cylinder barrel, porose seal ring and guide ring are set.
In the utility model preferred embodiment, sealing configuration is provided with between described upper piston and piston rod, described upper sealing configuration comprises the first sealing group near upper gas chamber and the second sealing group near upper oil cavitie, described first sealing group and the second sealing group include O-ring seals and back-up ring, back-up ring in described first sealing group is positioned at O-ring seals in the one side of upper oil cavitie, and the back-up ring in described second sealing group is positioned at O-ring seals away from the one side of upper oil cavitie.
In the utility model preferred embodiment, be provided with lower seal structure between described lower piston and piston rod, described lower seal structure and upper sealing configuration are symmetrical arranged.
The utility model has following beneficial effect:
1, the utility model utilizes the to-and-fro motion of high pressure oil driven plunger, and to natural gas compressing acting, replace traditional mechanical compressor, Transmitted chains is short, and movement parts is few, and transmission efficiency is high; Due to fluid Flexible Transmission, so the mechanical vibration that operate steadily are less, noise is low;
2, vertical installation, compact structure, floor space is little;
3, few easy workout part, keep in repair easy, reliability is high, low cost of manufacture;
4, Oil-gas Separation, after compression, oil gas quality is higher; Share cylinder body, be beneficial to rock gas heat radiation.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of the utility model single-stage natural gas compressing cylinder one preferred embodiment;
Fig. 2 is that the A-A of Fig. 1 is to sectional view;
Fig. 3 is the partial enlarged drawing of B in Fig. 2;
Fig. 4 is the partial enlarged drawing of C in Fig. 2;
Fig. 5 is the plan view of Fig. 1;
Fig. 6 is the worm's eye view of Fig. 1.
In accompanying drawing, the mark of each parts is as follows: 1, upper cylinder barrel, and 2, lower cylinder barrel, 3, guide sleeve, 4, upper cylinder cover; 5, lower cylinder cap, 6, piston rod, 7, upper piston, 8, upper gas chamber; 9, upper oil cavitie, 10, lower piston, 11, lower air chamber, 12, lower oil cavitie; 13, upper proximity switch, 14, lower proximity switch, 15, proximity switch safety cover; 16, cushion collar, 17, setting sleeve, 18, bar seal ring; 19, hole seal ring, the 20, first sealing group, the 21, second sealing group.
Embodiment
Be clearly and completely described to the technological scheme in the utility model embodiment below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 to Fig. 6, the utility model is embodiment comprise:
A kind of single-stage natural gas compressing cylinder, comprise: upper cylinder barrel 1, lower cylinder barrel 2 and the guide sleeve 3 between upper cylinder barrel 1, lower cylinder barrel 2, described upper cylinder barrel 1, lower cylinder barrel 2 pass through Flange joint respectively and between guide sleeve 3, the other end of described upper cylinder barrel 1 has upper cylinder cover 4 by Flange joint, the other end of described lower cylinder barrel 2 has lower cylinder cap 5 by Flange joint, between described upper cylinder cover 4 and upper cylinder barrel 1, there is back-up ring and O-ring seals, there is good sealability, between described lower cylinder cap 5 and lower cylinder barrel 2, there is back-up ring and O-ring seals, there is good sealability.
Described compression cylinder also comprises piston rod 6; described piston rod 6 runs through guide sleeve; and the two ends of piston rod 6 lay respectively in cylinder barrel 1 and in lower cylinder barrel 2; bar seal ring 18 is provided with between described guide sleeve 3 and piston rod 6; good seal performance; the both sides of described bar seal ring 18 are respectively provided with a guide ring, play a very good protection to piston rod.
The upper end of described piston rod 6 is equipped with upper piston 7, porose seal ring 19 and guide ring are set between described upper piston and upper cylinder barrel, promote the sealability between upper piston and upper cylinder barrel, decrease wearing and tearing, upper gas chamber 8 is formed between described upper piston 7 and upper cylinder cover, upper oil cavitie 9 is formed between described upper piston 7 and guide sleeve, the lower end of described piston rod 6 is equipped with lower piston 10, between described lower piston and lower cylinder barrel, porose seal ring and guide ring are set, improve the sealability between lower piston and lower cylinder barrel, decrease wearing and tearing, lower air chamber 11 is formed between described lower piston 10 and lower cylinder cap, lower oil cavitie 12 is formed between described lower piston 10 and guide sleeve.
Preferably, sealing configuration is provided with between described upper piston 7 and piston rod 6, described upper sealing configuration comprises the first sealing group 20 near upper gas chamber and the second sealing group 21 near upper oil cavitie, described first sealing group and the second sealing group include O-ring seals and back-up ring, back-up ring in described first sealing group 20 is positioned at O-ring seals in the one side of upper oil cavitie, back-up ring in described second sealing group 21 is positioned at O-ring seals away from the one side of upper oil cavitie, upper piston is made all and between piston rod to have splendid sealability in reciprocatory movement by said structure, be provided with lower seal structure between described lower piston and piston rod, described lower seal structure and upper sealing configuration are symmetrical arranged, and make lower piston all and between piston rod have splendid sealability in reciprocatory movement.
Preferably, described piston rod 6 two ends all have a step, cushion collar 16 is provided with between described upper piston 7 and step, play buffer function, described cushion collar 16 outside has setting sleeve 17, be provided with cushion collar between described lower piston 10 and step, play buffer function, described cushion collar outside has setting sleeve.
Described upper cylinder cover 4 offers the enterprising gas port be connected with upper gas chamber and upper air outlet, described lower cylinder cap 5 offers the lower suction port be connected with lower air chamber and lower air outlet.
Described guide sleeve 3 have the upper filler opening be connected with upper oil cavitie 9 and upper oil outlet; described guide sleeve 3 also have the lower filler opening be connected with lower oil cavitie 12 and lower oil outlet; described guide sleeve 3 is also provided with proximity switch 13 and lower proximity switch 14; described upper proximity switch 13 and lower proximity switch 14 outside all have proximity switch safety cover 15; be bolted to connection between described proximity switch safety cover 15 and guide sleeve 3, be used for protection two proximity switches not by outside damage.
The utility model has following beneficial effect:
1, the utility model utilizes the to-and-fro motion of high pressure oil driven plunger, and to natural gas compressing acting, replace traditional mechanical compressor, Transmitted chains is short, and movement parts is few, and transmission efficiency is high; Due to fluid Flexible Transmission, so the mechanical vibration that operate steadily are less, noise is low;
2, vertical installation, compact structure, floor space is little;
3, few easy workout part, keep in repair easy, reliability is high, low cost of manufacture;
4, Oil-gas Separation, after compression, oil gas quality is higher; Share cylinder body, be beneficial to rock gas heat radiation.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a single-stage natural gas compressing cylinder, it is characterized in that, comprise: upper cylinder barrel, lower cylinder barrel and the guide sleeve between upper cylinder barrel, lower cylinder barrel, described upper cylinder barrel, lower cylinder barrel pass through Flange joint respectively and between guide sleeve, the other end of described upper cylinder barrel has upper cylinder cover by Flange joint, and the other end of described lower cylinder barrel has lower cylinder cap by Flange joint;
Described compression cylinder also comprises piston rod, described piston rod runs through guide sleeve, and the two ends of piston rod lay respectively in cylinder barrel and in lower cylinder barrel, the upper end of described piston rod is equipped with upper piston, form upper gas chamber between described upper piston and upper cylinder cover, form upper oil cavitie between described upper piston and guide sleeve, the lower end of described piston rod is equipped with lower piston, form lower air chamber between described lower piston and lower cylinder cap, between described lower piston and guide sleeve, form lower oil cavitie;
Described upper cylinder cover offers the enterprising gas port and upper air outlet that are connected with upper gas chamber, described lower cylinder cap offers the lower suction port be connected with lower air chamber and lower air outlet;
Described guide sleeve have the upper filler opening and upper oil outlet that are connected with upper oil cavitie; described guide sleeve also have the lower filler opening and lower oil outlet that are connected with lower oil cavitie; described guide sleeve is also provided with proximity switch and lower proximity switch; described upper proximity switch and lower proximity switch outside all have proximity switch safety cover, are bolted to connection between described proximity switch safety cover and guide sleeve.
2. single-stage natural gas compressing cylinder according to claim 1, it is characterized in that, described piston rod two ends all have a step, cushion collar is provided with between described upper piston and step, described cushion collar outside has setting sleeve, be provided with cushion collar between described lower piston and step, described cushion collar outside has setting sleeve.
3. single-stage natural gas compressing cylinder according to claim 1, is characterized in that having back-up ring and O-ring seals between described upper cylinder cover and upper cylinder barrel, has back-up ring and O-ring seals between described lower cylinder cap and lower cylinder barrel.
4. single-stage natural gas compressing cylinder according to claim 1, is characterized in that, be provided with bar seal ring between described guide sleeve and piston rod, and the both sides of described bar seal ring are respectively provided with a guide ring.
5. single-stage natural gas compressing cylinder according to claim 1, is characterized in that, arrange porose seal ring and guide ring between described upper piston and upper cylinder barrel, arranges porose seal ring and guide ring between described lower piston and lower cylinder barrel.
6. single-stage natural gas compressing cylinder according to claim 1, it is characterized in that, sealing configuration is provided with between described upper piston and piston rod, described upper sealing configuration comprises the first sealing group near upper gas chamber and the second sealing group near upper oil cavitie, described first sealing group and the second sealing group include O-ring seals and back-up ring, back-up ring in described first sealing group is positioned at O-ring seals in the one side of upper oil cavitie, and the back-up ring in described second sealing group is positioned at O-ring seals away from the one side of upper oil cavitie.
7. single-stage natural gas compressing cylinder according to claim 6, is characterized in that, be provided with lower seal structure between described lower piston and piston rod, and described lower seal structure and upper sealing configuration are symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786413.7U CN205025856U (en) | 2015-10-12 | 2015-10-12 | Single -stage natural gas compression cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520786413.7U CN205025856U (en) | 2015-10-12 | 2015-10-12 | Single -stage natural gas compression cylinder |
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| Publication Number | Publication Date |
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| CN205025856U true CN205025856U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520786413.7U Active CN205025856U (en) | 2015-10-12 | 2015-10-12 | Single -stage natural gas compression cylinder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971851A (en) * | 2016-07-04 | 2016-09-28 | 无锡欧洛普科技有限公司 | Natural gas compression cylinder |
| CN110714954A (en) * | 2019-10-25 | 2020-01-21 | 湖南中大创远数控装备有限公司 | Oil cylinder |
-
2015
- 2015-10-12 CN CN201520786413.7U patent/CN205025856U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971851A (en) * | 2016-07-04 | 2016-09-28 | 无锡欧洛普科技有限公司 | Natural gas compression cylinder |
| CN110714954A (en) * | 2019-10-25 | 2020-01-21 | 湖南中大创远数控装备有限公司 | Oil cylinder |
| CN110714954B (en) * | 2019-10-25 | 2022-03-08 | 湖南中大创远数控装备有限公司 | Oil cylinder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213167, No. 99, long hidden Road, Wujin hi tech Development Zone, Jiangsu, Changzhou Patentee after: JIANGSU HENGLI HYDRAULIC CO., LTD. Address before: 213167, No. 99, long hidden Road, Wujin hi tech Development Zone, Jiangsu, Changzhou Patentee before: Jiangsu Hengli High Pressure Oil Cylinder Co., Ltd. |