CN104179664A - Compression cylinder of hydraulic piston type natural gas compressor - Google Patents
Compression cylinder of hydraulic piston type natural gas compressor Download PDFInfo
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- CN104179664A CN104179664A CN201410422388.4A CN201410422388A CN104179664A CN 104179664 A CN104179664 A CN 104179664A CN 201410422388 A CN201410422388 A CN 201410422388A CN 104179664 A CN104179664 A CN 104179664A
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Abstract
The invention discloses a compression cylinder of a hydraulic piston type natural gas compressor. The compression cylinder comprises a lower cylinder bottom (1), a lower cylinder barrel (2), an oil port connecting seat (3), an upper cylinder barrel (4), an upper cylinder cover (5), a piston rod (6), a first piston (8) and a second piston (7). A guide barrel (9) is fixedly arranged on the top of the upper cylinder cover, the top of the guide barrel is sealed, an inner cavity of the guide barrel is communicated with a first pressure cavity (A), a connecting rod (10) is fixedly arranged on the top of the piston rod and extends into the guide barrel, magnetic steel (11) is fixedly arranged on the top of the connecting rod, and a moving part (12) is arranged on the outer wall of the guide barrel and can move up and down along with the magnetic steel under the effect of magnetic force of the magnetic steel when the piston rod drives the magnetic steel via the connecting rod to move up and down. The compression cylinder has the advantages that operators can acquire movement tracks of the piston rod by means of observing the moving part, accordingly, whether the pistons do work in place or not, whether leakage faults occur inside the compression cylinder or not and the like can be accurately judged, and the compression cylinder is simple in structure and smart in design.
Description
Technical field
The present invention relates to natural gas equipment technical field, be specifically related to a kind of for the compression cylinder structure on hydraulic piston type natural gas compressor.
Background technique
As shown in Figure 1 and Figure 2, a kind of compression cylinder of hydraulic piston type natural gas compressor, is mainly comprised of lower cylinder bottom 1, lower cylinder barrel 2, hydraulic fluid port connecting base 3, upper cylinder barrel 4, upper cylinder cover 5, piston rod 6, first piston 7, the second piston 8 etc.Lower cylinder bottom 1, lower cylinder barrel 2, hydraulic fluid port connecting base 3, upper cylinder barrel 4, upper cylinder cover 5, this is connected from down to up successively, thereby forms a cylinder body with upper and lower cavity, and hydraulic fluid port connecting base 3 is just in time between upper and lower cavity.On hydraulic fluid port connecting base 3, be fitted with piston rod 6, the first piston 7 mating with upper cylinder barrel 4 is equipped with in the upper end of piston rod 6, upper cavity is divided into the first atmospheric pressure cavity A and the first oil pressure chamber B, near hydraulic fluid port connecting base 3 be the first oil pressure chamber B, away from hydraulic fluid port connecting base 3 is the first atmospheric pressure cavity A.The second piston 8 mating with lower cylinder barrel 2 is equipped with in the lower end of piston rod 6, and lower chamber is divided into the second oil pressure chamber C and the second atmospheric pressure cavity D, near hydraulic fluid port connecting base 3 be the second oil pressure chamber C, away from hydraulic fluid port connecting base 3 is the second atmospheric pressure cavity D.On hydraulic fluid port connecting base 3, be provided with filler opening and oil outlet, filler opening communicates with first, second oil pressure chamber B, C, and oil outlet also communicates with first, second oil pressure chamber B, C.On upper cylinder cover 5, be provided with the suction port and the air outlet that communicate with the first atmospheric pressure cavity A, on lower cylinder bottom 1, be provided with suction port and the air outlet communicating with the second atmospheric pressure cavity D.
Working procedure and principle are as follows: supposition is first injected high pressure oil by the filler opening on hydraulic fluid port connecting base 3 to the first oil pressure chamber B, pressure increase along with the first oil pressure chamber B, promoting first piston 8 moves upward, thereby the gas of compression the first atmospheric pressure cavity A, the second atmospheric pressure cavity D is air-breathing simultaneously, and the pressurized gas of the first atmospheric pressure cavity A after compression are discharged through the air outlet of upper cylinder cover 5; Afterwards, and inject high pressure oil in the second oil pressure chamber C, high pressure oil in the first oil pressure chamber B is discharged through oil outlet, promoting the second piston 7 moves downward, thereby the gas of compression the second atmospheric pressure cavity D, the first atmospheric pressure cavity A is air-breathing simultaneously, and the pressurized gas of the second atmospheric pressure cavity D after compression are discharged through the air outlet of lower cylinder bottom 1.This compression cylinder is with two atmospheric pressure cavities, in pressurized gas, air-breathing by other atmospheric pressure cavity, moves in circles, and has greatly improved working efficiency.
But owing to being pressurized gas in compression cylinder, piston seal is in cylinder body, operator cannot observe the movement locus of piston, for the piston rod acting that whether puts in place, or in compression cylinder, whether occurs that leakage failure etc. is all unknown.
Summary of the invention
The present invention aims to provide a kind of compression cylinder of hydraulic piston type natural gas compressor, and operator can observe the movement locus of piston intuitively, judges exactly the piston acting that whether puts in place, and in compression cylinder, whether occurs leakage failure.
For this reason, the technical solution adopted in the present invention is: a kind of compression cylinder of hydraulic piston type natural gas compressor, comprise lower cylinder bottom, lower cylinder barrel, hydraulic fluid port connecting base, upper cylinder barrel and upper cylinder cover, five are connected and form with upper successively from down to up, the cylinder body of lower chamber, on described hydraulic fluid port connecting base, be fitted with piston rod, the first piston mating with upper cylinder barrel is equipped with in the upper end of piston rod, upper cavity is divided into the first atmospheric pressure cavity and the first oil pressure chamber, the second piston mating with lower cylinder barrel is equipped with in the lower end of piston rod, lower chamber is divided into the second oil pressure chamber and the second atmospheric pressure cavity, on described hydraulic fluid port connecting base, be provided with and first, filler opening and oil outlet that the second oil pressure chamber communicates, on upper cylinder cover, be provided with the suction port and the air outlet that communicate with the first atmospheric pressure cavity, on described lower cylinder bottom, be provided with suction port and the air outlet communicating with the second atmospheric pressure cavity, key is:
The top of described upper cylinder cover is installed with guide cylinder, the top seal of this guide cylinder, and the inner chamber of guide cylinder communicates with the first atmospheric pressure cavity, the top of described piston rod is installed with connecting rod, connecting rod stretches in guide cylinder, and is installed with magnet steel at the top of connecting rod, on described guide cylinder outer wall, is provided with movement parts, when piston rod drives magnet steel to move up and down by connecting rod, described movement parts moves up and down with magnet steel under the magnetic force of magnet steel.
As such scheme preferably, on described guide cylinder outer wall, be provided with initial to bit-identify be terminated to bit-identify.Set up two to bit-identify, for piston rod movement, whether put in place more directly perceived.
For convenience of installing and manufacturing, described movement parts is ring part, is enclosed within outside guide cylinder.
Further, described first, second piston is locked on piston rod by backing plate, locking nut and the cotter pin being set with successively respectively, the lower end of described connecting rod is fastened on piston rod part by attaching nut, described guide cylinder inserts the middle part of upper cylinder cover, and is together by a threaded connection with upper cylinder cover; To manufacture and assembling for convenient equally.
Working procedure and principle: it is consistent that the working principle of compression cylinder main body and process are introduced with background technique, on this basis, connecting rod and magnet steel and the movement parts of having set up the guide cylinder that is fixed together with upper cylinder cover, being fixed together with piston rod, piston cylinder drives connecting rod and magnet steel to move up and down together, and movement parts moves up and down with magnet steel under the magnetic force of magnet steel, operator, by observing movement parts, just can be known the movement locus of piston.
Beneficial effect of the present invention: operator obtains the movement locus of piston by observing movement parts, thus judge exactly the piston acting that whether puts in place, and in compression cylinder, whether there is leakage failure etc., simple in structure, design ingenious.
Accompanying drawing explanation
Fig. 1 is the structural representation before improving.
Fig. 2 is the outline drawing of Fig. 1.
Fig. 3 is the structural representation after improving.
Fig. 4 is the E portion enlarged view of Fig. 3.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 3, Figure 4, a kind of compression cylinder of hydraulic piston type natural gas compressor, is mainly comprised of lower cylinder bottom 1, lower cylinder barrel 2, hydraulic fluid port connecting base 3, upper cylinder barrel 4, upper cylinder cover 5, piston rod 6, first piston 8, the second piston 7 etc.Lower cylinder bottom 1, lower cylinder barrel 2, hydraulic fluid port connecting base 3, upper cylinder barrel 4, upper cylinder cover 5, this is connected from down to up successively, thereby forms a cylinder body with upper and lower cavity, and hydraulic fluid port connecting base 3 is just in time between upper and lower cavity.On hydraulic fluid port connecting base 3, be fitted with piston rod 6, the first piston 8 mating with upper cylinder barrel 4 is equipped with in the upper end of piston rod 6, and upper cavity is divided into the first atmospheric pressure cavity A and the first oil pressure chamber B.The second piston 7 mating with lower cylinder barrel 2 is equipped with in the lower end of piston rod 6, and lower chamber is divided into the second oil pressure chamber C and the second atmospheric pressure cavity D.On hydraulic fluid port connecting base 3, be provided with filler opening and oil outlet, filler opening communicates with first, second oil pressure chamber B, C, and oil outlet also communicates with first, second oil pressure chamber B, C.On upper cylinder cover 5, be provided with the suction port and the air outlet that communicate with the first atmospheric pressure cavity A, on lower cylinder bottom 1, be provided with suction port and the air outlet communicating with the second atmospheric pressure cavity D.In compression cylinder, be also provided with seal ring, back-up ring etc.The above, consistent with the compression cylinder structure of introducing in background technique, do not repeat them here.
Difference is: the top of upper cylinder cover 5 is installed with guide cylinder 9, the top seal of this guide cylinder 9, and the inner chamber of guide cylinder 9 communicates with the first atmospheric pressure cavity A, thereby make the inner chamber of guide cylinder 9, is also heavy pressure gas chamber.The top of piston rod 6 is installed with connecting rod 10, connecting rod 10 stretches in guide cylinder 9, and be installed with magnet steel 11 at the top of connecting rod 10, on guide cylinder 9 outer walls, be provided with movement parts 12, when piston rod 6 drives magnet steel 11 to move up and down by connecting rod 10, movement parts 12 moves up and down with magnet steel 11 under the magnetic force of magnet steel 11.While specifically arranging, due to the stroke of magnet steel 11 and the stroke of first, second piston consistent, therefore, the length of guide cylinder 9 must not be less than the stroke of first, second piston 8,7.Guide cylinder 9 adopts non-magnet material to make, and movement parts 12 adopts permeability magnetic material to make, to guarantee that movement parts 12 moves up and down with magnet steel 11 under the magnetic force of magnet steel 11.
Preferably, on guide cylinder 9 outer walls, be provided with initial to bit-identify be terminated to bit-identify, initially put in place and be identified to the distance that is terminated to bit-identify, be the stroke of first, second piston 8,7.Movement parts 12 is preferably ring part, is enclosed within outside guide cylinder 9, can be also pin or other arbitrary shape.
In addition, first, second piston 8,7 is locked on piston rod 6 by backing plate 13, locking nut 14 and the cotter pin 16 being set with successively respectively, the lower end of connecting rod 10 is welded with attaching nut 15, attaching nut 15 passes through screw-threaded coupling with connecting rod 10, thereby makes connecting rod 10 be fastened on piston rod 6 tops by attaching nut 15; Guide cylinder 9 inserts the middle part of upper cylinder cover 5, and is together by a threaded connection with upper cylinder cover 5.
Claims (4)
1. the compression cylinder of a hydraulic piston type natural gas compressor, comprise lower cylinder bottom (1), lower cylinder barrel (2), hydraulic fluid port connecting base (3), upper cylinder barrel (4) and upper cylinder cover (5), five are connected and form with upper successively from down to up, the cylinder body of lower chamber, on described hydraulic fluid port connecting base (3), be fitted with piston rod (6), the first piston (8) mating with upper cylinder barrel (4) is equipped with in the upper end of piston rod (6), upper cavity is divided into the first atmospheric pressure cavity (A) and the first oil pressure chamber (B), the second piston (7) mating with lower cylinder barrel (2) is equipped with in the lower end of piston rod (6), lower chamber is divided into the second oil pressure chamber (C) and the second atmospheric pressure cavity (D), on described hydraulic fluid port connecting base (3), be provided with and first, the second oil pressure chamber (B, C) filler opening communicating and oil outlet, on upper cylinder cover (5), be provided with suction port and the air outlet communicating with the first atmospheric pressure cavity (A), on described lower cylinder bottom (1), be provided with suction port and the air outlet communicating with the second atmospheric pressure cavity (D), it is characterized in that:
The top of described upper cylinder cover (5) is installed with guide cylinder (9), the top seal of this guide cylinder (9), and the inner chamber of guide cylinder (9) communicates with the first atmospheric pressure cavity (A), the top of described piston rod (6) is installed with connecting rod (10), connecting rod (10) stretches in guide cylinder (9), and be installed with magnet steel (11) at the top of connecting rod (10), on described guide cylinder (9) outer wall, be provided with movement parts (12), when piston rod (6) drives magnet steel (11) to move up and down by connecting rod (10), described movement parts (12) moves up and down with magnet steel (11) under the magnetic force of magnet steel (11).
2. according to the compression cylinder of hydraulic piston type natural gas compressor claimed in claim 1, it is characterized in that: on described guide cylinder (9) outer wall, be provided with initial to bit-identify be terminated to bit-identify.
3. according to the compression cylinder of hydraulic piston type natural gas compressor claimed in claim 1, it is characterized in that: described movement parts (12) is ring part, is enclosed within outside guide cylinder (9).
4. according to the compression cylinder of hydraulic piston type natural gas compressor claimed in claim 1, it is characterized in that: described first, second piston (8,7) is locked on piston rod (6) by backing plate (13), locking nut (14) and the cotter pin (16) being set with successively respectively, the lower end of described connecting rod (10) is fastened on piston rod (6) top by attaching nut (15), described guide cylinder (9) inserts the middle part of upper cylinder cover (5), and is together by a threaded connection with upper cylinder cover (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422388.4A CN104179664A (en) | 2014-08-25 | 2014-08-25 | Compression cylinder of hydraulic piston type natural gas compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422388.4A CN104179664A (en) | 2014-08-25 | 2014-08-25 | Compression cylinder of hydraulic piston type natural gas compressor |
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| CN104179664A true CN104179664A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410422388.4A Pending CN104179664A (en) | 2014-08-25 | 2014-08-25 | Compression cylinder of hydraulic piston type natural gas compressor |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515516A (en) * | 1981-09-30 | 1985-05-07 | Champion, Perrine & Associates | Method and apparatus for compressing gases |
| US5024250A (en) * | 1989-01-10 | 1991-06-18 | Nakamura Koki Co., Ltd. | Piston type accumulator for hydraulic system |
| CN1290592A (en) * | 1999-10-04 | 2001-04-11 | 速睦喜股份有限公司 | Composite pneumatic chuck with position detection mechanism |
| CN101230849A (en) * | 2008-02-14 | 2008-07-30 | 大连劳雷流体设备有限公司 | Double-piston hydropower pressure regulating pump |
| US20080197306A1 (en) * | 2007-02-16 | 2008-08-21 | Robert Arnold Judge | Ram bop position sensor |
| CN201461595U (en) * | 2009-05-14 | 2010-05-12 | 中国海洋石油总公司 | High temperature drilling hydraulic cylinder with displacement transducer |
| CN201969864U (en) * | 2011-02-22 | 2011-09-14 | 宁波铝台精机有限公司 | Press-shoot energy accumulator |
| CN103464590A (en) * | 2013-09-05 | 2013-12-25 | 无锡双友石化机械有限公司 | Mold positioning and detecting system of pipe-end expanding machine |
| CN204253325U (en) * | 2014-08-25 | 2015-04-08 | 重庆耐德燃气设备有限公司 | The compression cylinder of hydraulic piston type natural gas compressor |
-
2014
- 2014-08-25 CN CN201410422388.4A patent/CN104179664A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515516A (en) * | 1981-09-30 | 1985-05-07 | Champion, Perrine & Associates | Method and apparatus for compressing gases |
| US5024250A (en) * | 1989-01-10 | 1991-06-18 | Nakamura Koki Co., Ltd. | Piston type accumulator for hydraulic system |
| CN1290592A (en) * | 1999-10-04 | 2001-04-11 | 速睦喜股份有限公司 | Composite pneumatic chuck with position detection mechanism |
| US20080197306A1 (en) * | 2007-02-16 | 2008-08-21 | Robert Arnold Judge | Ram bop position sensor |
| CN101230849A (en) * | 2008-02-14 | 2008-07-30 | 大连劳雷流体设备有限公司 | Double-piston hydropower pressure regulating pump |
| CN201461595U (en) * | 2009-05-14 | 2010-05-12 | 中国海洋石油总公司 | High temperature drilling hydraulic cylinder with displacement transducer |
| CN201969864U (en) * | 2011-02-22 | 2011-09-14 | 宁波铝台精机有限公司 | Press-shoot energy accumulator |
| CN103464590A (en) * | 2013-09-05 | 2013-12-25 | 无锡双友石化机械有限公司 | Mold positioning and detecting system of pipe-end expanding machine |
| CN204253325U (en) * | 2014-08-25 | 2015-04-08 | 重庆耐德燃气设备有限公司 | The compression cylinder of hydraulic piston type natural gas compressor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |