CN200946558Y - Novel hydraulic drive natural gas reciprocating compressor - Google Patents
Novel hydraulic drive natural gas reciprocating compressor Download PDFInfo
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- CN200946558Y CN200946558Y CN 200620088069 CN200620088069U CN200946558Y CN 200946558 Y CN200946558 Y CN 200946558Y CN 200620088069 CN200620088069 CN 200620088069 CN 200620088069 U CN200620088069 U CN 200620088069U CN 200946558 Y CN200946558 Y CN 200946558Y
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Abstract
A novel hydraulic drive natural gas reciprocating compressor, including at least four coaxial clapboards (15, 16, 17, 18), at least three cylinder tubes (12, 13, 14) which are divided by the coaxial clapboards, and at least three pistons (19, 20, 21) which are all arranged on a same connecting rod 22. The two spaces divided by the piston at the bottom of the cylinder tube 13 are all oil rooms; among the two spaces divided by the piston of the cylinder tube 12 and 14, one is a low pressure gas chamber and the other one is a hyperbaric gas chamber; all the coaxial clapboards and the cylinder tubes are in series fixed and arranged each other so as to form a whole. The compact compressor can realize a multipolar condensation of natural gas; owing to hydraulic oil and natural gas share a same cylinder body, so the shortcoming brought about by the existing technologies that hydraulic oil mixes into natural gas by a peg wall can be eliminated, and thus be benefit to improve the purity and quality of the compressed natural gases.
Description
Technical field the utility model relates to a kind of hydraulic driving compressor, particularly a kind of hydraulic driving rock gas reciprocating compressor.
Background technique is present, and the reciprocating type multilevel hierarchy of the many employings of more advanced rock gas hydraulic pressure Driven Compressor promptly often is used in the natural gas vehicle refueling station to a plurality of compressors.A kind of typical structure is as described in the Chinese patent ZL86100929A, is made up of 4 coaxial dividing plates, 3 cylinder barrels that separated by coaxial dividing plate (1,2,3) and 3 pistons (4,5,6) of being contained on the same connecting rod, referring to accompanying drawing 1.The flow direction of hydraulic oil is shown in the dotted line of band arrow among Fig. 1, and the flow direction of rock gas is shown in the solid line of band arrow among Fig. 1.The working principle of this compressor is: the space 8,10 that alternately flows into piston 4,6 inboards from the hydraulic oil of power container, promoting piston 4,5,6 moves reciprocatingly, after first order compression (low pressure compression) is done in the space 9 that the rock gas of uncompressed enters cylinder barrel 2, the outer space 7,11 that enters cylinder barrel 1,3 is again done second level compression (high pressure compressed), enters in the equipment of compressed gas supplying after the cooling then.The advantage of this compressor is to finish the multistage compression process integration in a compressor, and piston makes a round trip and can carry out multistage compression, compressor in light weight, efficient height.
But also there is shortcoming in this compressor.
Because cylinder barrel 1 and 3 is held a concurrent post the dual function of cylinder and oil cylinder, piston 4 is divided into space 7 and 8 to cylinder barrel 1, and piston 6 is divided into space 10 and 11 to cylinder barrel 3, and space 7 and 11 is an air chamber, and space 8 and 10 is the grease chamber.The both sides of piston are respectively oil, two kinds of different media of gas, and along with the to-and-fro motion of piston 4,6, this those long transformations that disappear can take place for grease chamber and air chamber.After hydraulic oil enters cylinder barrel 1,3, on the inwall of meeting attached to cylinder, form so-called " wall cling phenomenon ", after hydraulic oil was compressed the temperature rising, this phenomenon can be more obvious especially.When hydraulic oil flow goes out cylinder barrel 1,3, air chamber 7,11 can be changed in grease chamber 8,10, can not thoroughly be discharged along with piston motion attached to the hydraulic oil of cylinder 1,3 inwalls, and they can be sneaked in the rock gas of air chamber 7,11, the purity of rock gas is descended, influence the quality of rock gas.Because NBS has strict requirement to the cleanliness of natural gas used for automobile, the compressor of prior art often occurs because of sneaking into the too much situation that can't be up to standard of oil, thereby has limited their application area.
The difficult point that addresses this problem is: area of contact is bigger between piston and the cylinder inner wall, is subjected to the restriction of seal degree, when piston motion, can't will remove fully attached to the oil on the cylinder inner wall.
The summary of the invention the purpose of this utility model provides a kind of novel hydraulic and drives the rock gas reciprocating compressor, in this compressor under the prerequisite that keeps the prior art advantage, the degree that hydraulic oil is sneaked in the rock gas greatly reduces, thereby improves the purity and the quality of compressed natural gas.
The purpose of this utility model is achieved through the following technical solutions: a kind of novel hydraulic drives the rock gas reciprocating compressor, comprise at least 4 coaxial dividing plates (15,16,17,18), at least 3 cylinder barrels (12 that separated by coaxial dividing plate, 13,14) and be contained at least 3 pistons (19 on the same connecting rod 22,20,21), piston 19 is divided into two spaces 25 to the inside of cylinder barrel 12,26, piston 20 is divided into two spaces 27 to the inside of cylinder barrel 13,28, piston 21 is divided into two spaces 29 to the inside of cylinder barrel 14,30, it is characterized in that: cylinder barrel 13 is connected with the power plant of compressor by the hydraulic oil in-and-out pipe at two ends, have a plurality of rock gas in-and-out pipe on the coaxial dividing plate at cylinder barrel 12 and 14 two ends, these rock gas in-and-out pipe are connected to each other by one-way valve, or with the rock gas total inlet pipe 39 of compressor, total steam outlet pipe 40 is connected.
In technique scheme, the two seals parts are equipped with in the coaxial dividing plate 16,17 at cylinder barrel 13 two ends and the junction of connecting rod 22, have the oil gas sewage draining exit that is connected with atmosphere between the two seals parts.This sealed member can be common v-seal spare.
Have 4 rock gas in-and-out pipe on the said coaxial dividing plate 15,18 in the technique scheme, wherein two is the rock gas admission line, they are connected with the rock gas total inlet pipe 39 of compressor by one-way valve 35,38 respectively, two other is the rock gas outlet pipe, and they are connected with one-way valve 32,33 by one- way valve 31,34 respectively; Have 4 rock gas in-and-out pipe on the coaxial dividing plate 16,17, wherein two is the rock gas admission line, they are connected with one- way valve 31,34 by one-way valve 32,33 respectively, two other is the rock gas outlet pipe, and they are connected by the total steam outlet pipe 40 of the one-way valve 36,37 and the rock gas of compressor respectively.
Adopt the basic ideas of technique scheme to be: in a plurality of cylinder barrels that separated by coaxial dividing plate, wherein 1 is specifically designed to oil cylinder, two other is specifically designed to cylinder, changed same cylinder barrel in the prior art and held a concurrent post the situation of cylinder, two kinds of functions of oil cylinder, oil cylinder is structurally separated with cylinder.Because the both sides of 3 pistons are same medium in the utility model, perhaps all be oil, perhaps all be gas, just eliminated hydraulic oil and afterwards sneaked into possibility in the rock gas inadequately because of the piston seal degree by " wall built-up ".Junction at piston rod and coaxial dividing plate has increased seal approach, and these measures comprise the oil gas sewage draining exit that the atmosphere between two seals part and the Sealing is connected.The possibility that seal approach makes oil gas sneak into rock gas further reduces.
As can be seen, in technique scheme, cylinder barrel 13 is an oil cylinder, and cylinder barrel 12,14 is a cylinder, has realized both separation structurally.
The outside of said cylinder barrel 12,14 is respectively equipped with cooling cover 23,24 in the technique scheme.Cooling cover is connected with cooling water, and effect is to carry out necessary cooling to compressing the rock gas and the cylinder barrel that heat up the back.
Said coaxial dividing plate (15,16,17,18) is fixedly mounted into an integral body with bolt by coaxial serial fashion by screw rod with cylinder barrel (12,13,14) in the technique scheme.
The minimum quantity of said coaxial dividing plate, cylinder barrel and piston designs according to rock gas is carried out two stage compression in the technique scheme, if take the circumstances into consideration to increase the quantity of above-mentioned device, can be used in the multistage compression of gas fully by same principle, the present invention to the compression progression without limits.
Positive effect of the present utility model is: one, owing to changed the situation that same cylinder barrel in the prior art is held a concurrent post cylinder, two kinds of functions of oil cylinder, eliminated hydraulic oil and sneaked into possibility in the rock gas, helped improving the purity and the quality of compressed natural gas by " wall built-up "; Two, can in same compressor, finish the multistage compression of rock gas; Three, the compressor volume is little, and compact structure is easy to use.
Description of drawings Fig. 1 is an existing hydraulic driving rock gas reciprocating compressor principle schematic (sectional drawing).
Fig. 2 is that novel hydraulic drives rock gas reciprocating compressor structure and working principle schematic representation (sectional drawing).
Fig. 3 is the form structure schematic representation that novel hydraulic drives the rock gas reciprocating compressor.
Fig. 4 is the partial structurtes enlarged diagram (sectional drawing) of Fig. 2.
The utility model is described in further detail below in conjunction with drawings and Examples for embodiment.
Embodiment is that the novel hydraulic of a two stage compression drives the rock gas reciprocating compressor, its structure as shown in Figures 2 and 3, it comprises 4 coaxial dividing plates (15,16,17,18), 3 cylinder barrels that separated by coaxial dividing plate (12,13,14) and is contained in 3 pistons (19,20,21) on the same connecting rod 22, piston 19 is divided into two spaces 25,26 to the inside of cylinder barrel 12, piston 20 is divided into two spaces 27,28 to the inside of cylinder barrel 13, and piston 21 is divided into two spaces 29,30 to the inside of cylinder barrel 14.
Junction at connecting rod 22 and coaxial dividing plate 16,17 has increased seal approach, and these measures comprise the oil gas sewage draining exit that the atmosphere between two seals part and the Sealing is connected, and its structure as shown in Figure 4.Fig. 4 is by the enlarged diagram of circle qualifying part among Fig. 3, be actually the sectional drawing of coaxial dividing plate 17, there is the circular hole of allowing that connecting rod 22 passes through in the center portion of this dividing plate, circular-hole internal-wall is equipped with twice v-seal spare 43,44, have the oil gas sewage draining exit 45,46 that is connected with atmosphere between the Sealing 43,44, the oil gas that adheres on the connecting rod 22 mouthful discharge from then on.The structure of coaxial dividing plate 16 is identical with coaxial dividing plate 17, this no longer auspicious stating.
This shows, two spaces 27,28 of cylinder barrel 13 inside are the grease chamber, 4 spaces 25,26,29,30 of cylinder barrel 12,14 inside are air chamber, wherein space 25,30 is first order compression air chamber (or claiming low-pressure chamber), and space 26,29 is second level compression air chamber (or claiming plenum chamber).The flow direction of hydraulic oil is shown in the dotted line of the band arrow among Fig. 2, when hydraulic oil flows into space 27, promoting piston 20 moves right, when hydraulic oil flows into space 28, promote piston 20 to left movement, owing to be contained on the same connecting rod 22, the motion of piston 20 will drive piston 19,21 and move to equidirectional.
The concrete working procedure of compressor is summarized as follows:
The flow direction of rock gas is shown in the solid line of band arrow among Fig. 2, when piston 19,20,21 moves right, rock gas enters from the rock gas total inlet pipe 39 of compressor, enter low-pressure chamber 25 through one-way valve 35, the rock gas that is arranged in low-pressure chamber 30 simultaneously is compressed, enter plenum chamber 29 through one- way valve 34,33, the rock gas that is arranged in plenum chamber 26 is compressed for the second time, enters the total steam outlet pipe 40 of rock gas of compressor through one-way valve 36.When piston 19,20,21 during to left movement, rock gas enters from the rock gas total inlet pipe 39 of compressor, enter low-pressure chamber 30 through one-way valve 38, the rock gas that is arranged in low-pressure chamber 25 simultaneously is compressed, enter plenum chamber 26 through one-way valve 31,32, the rock gas that is arranged in plenum chamber 29 is compressed for the second time, enters the total steam outlet pipe 40 of rock gas of compressor through one-way valve 37.As seen, piston whenever makes a round trip, and can finish once the two stage compression to rock gas.
The outside of cylinder barrel 12,14 is respectively equipped with cooling cover 23,24.Cooling water be can in cooling cover 23,24, feed during compressor operating, rock gas after being compressed and cylinder barrel 12,14 coolings are.Cylinder barrel 13 utilizes the hydraulic oil cooling, and the cooling of hydraulic oil itself can be carried out outside system.Coaxial dividing plate (15,16,17,18) and cylinder barrel (12,13,14) are connected screw rod 41 and hex head bolt 42 clamps, and fixedly mounts into an integral body by coaxial serial fashion.
In actual applications, position transducer also is equipped with in the inner place near coaxial dividing plate of cylinder barrel, after the signal of sensor can receive processing by computer, by the commutation of motor action control oil channel, so that limit the range of movement of piston.These technology are identical with prior art, no longer describe in detail here.
Claims (5)
1, a kind of novel hydraulic drives the rock gas reciprocating compressor, comprise at least 4 coaxial dividing plates (15,16,17,18), at least 3 cylinder barrels (12 that separated by coaxial dividing plate, 13,14) and be contained at least 3 pistons (19 on the same connecting rod (22), 20,21), piston (19) is divided into two spaces (25) to the inside of cylinder barrel (12), (26), piston (20) is divided into two spaces (27 to the inside of cylinder barrel (13), 28), piston (21) is divided into two spaces (29 to the inside of cylinder barrel (14), 30), it is characterized in that: cylinder barrel (13) is connected with the power plant of compressor by the hydraulic oil in-and-out pipe at two ends, have a plurality of rock gas in-and-out pipe on the coaxial dividing plate at cylinder barrel (12) and (14) two ends, these rock gas in-and-out pipe are connected to each other by one-way valve, or with the rock gas total inlet pipe (39) of compressor, total steam outlet pipe (40) is connected.
2, novel hydraulic according to claim 1 drives the rock gas reciprocating compressor, the coaxial dividing plate (16,17) that it is characterized in that cylinder barrel (13) two ends is equipped with the two seals part with the junction of connecting rod (22), has the oil gas sewage draining exit that is connected with atmosphere between the two seals part.
3, novel hydraulic according to claim 1 drives the rock gas reciprocating compressor, it is characterized in that having 4 rock gas in-and-out pipe on the said coaxial dividing plate (15,18), wherein two is the rock gas admission line, they are connected with the rock gas total inlet pipe (39) of compressor by one-way valve (35,38) respectively, two other is the rock gas outlet pipe, and they are connected with one-way valve (32,33) by one-way valve (31,34) respectively; Coaxial dividing plate has 4 rock gas in-and-out pipe on (16,17), wherein two is the rock gas admission line, they are connected with one-way valve (31,34) by one-way valve (32,33) respectively, two other is the rock gas outlet pipe, and they are connected with the total steam outlet pipe of the rock gas of compressor by one-way valve (36,37) respectively.
4, novel hydraulic according to claim 1 drives the rock gas reciprocating compressor, it is characterized in that the outside of said cylinder barrel (12,14) is respectively equipped with cooling cover (23,24).
5, novel hydraulic according to claim 1 drives the rock gas reciprocating compressor, it is characterized in that said coaxial dividing plate (15,16,17,18) is fixedly mounted into an integral body with bolt by coaxial serial fashion by screw rod with cylinder barrel (12,13,14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088069 CN200946558Y (en) | 2006-08-17 | 2006-08-17 | Novel hydraulic drive natural gas reciprocating compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088069 CN200946558Y (en) | 2006-08-17 | 2006-08-17 | Novel hydraulic drive natural gas reciprocating compressor |
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| CN200946558Y true CN200946558Y (en) | 2007-09-12 |
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| CN 200620088069 Expired - Fee Related CN200946558Y (en) | 2006-08-17 | 2006-08-17 | Novel hydraulic drive natural gas reciprocating compressor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678506A (en) * | 2012-04-26 | 2012-09-19 | 西安昆仑液压传动机械厂 | Coaxial compressor cylinder two-stage compression device |
| CN103016306A (en) * | 2012-12-04 | 2013-04-03 | 中国航空工业集团公司北京航空精密机械研究所 | Ventilation booster pump |
| CN103470473A (en) * | 2013-09-26 | 2013-12-25 | 天津市海雅实业有限公司 | Hydraulic gas vacuum pump |
| CN103742352A (en) * | 2014-01-16 | 2014-04-23 | 毛永波 | Screw type piston energy cycle power system capable of converting air pressure into hydraulic pressure |
| CN102089518B (en) * | 2007-12-14 | 2014-12-10 | 大卫·麦克康内尔 | Wind to electric energy conversion with hydraulic storage |
| CN104214071A (en) * | 2014-09-09 | 2014-12-17 | 武汉齐达康环保科技有限公司 | Reciprocating plunger type gas compressor and method |
| CN104595155A (en) * | 2014-12-30 | 2015-05-06 | 成都烃源科技有限责任公司 | Long-stroke hydraulically-controlled natural gas compressor |
| CN107387389A (en) * | 2017-08-23 | 2017-11-24 | 四川达灿石油设备有限公司 | A kind of fluid end of fracturing pump |
| CN109653985A (en) * | 2018-12-13 | 2019-04-19 | 武汉齐达康环保科技股份有限公司 | A kind of hydrogen gas compressor host and compression method |
| CN110821781A (en) * | 2019-12-26 | 2020-02-21 | 宁波文泽机电技术开发有限公司 | Hydraulic air compressor |
| CN111005854A (en) * | 2019-12-26 | 2020-04-14 | 宁波文泽机电技术开发有限公司 | Air compressor |
| CN113775504A (en) * | 2021-11-09 | 2021-12-10 | 东营众志石油工程技术有限公司 | Intelligence associated gas supercharging device |
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2006
- 2006-08-17 CN CN 200620088069 patent/CN200946558Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102089518B (en) * | 2007-12-14 | 2014-12-10 | 大卫·麦克康内尔 | Wind to electric energy conversion with hydraulic storage |
| CN102678506A (en) * | 2012-04-26 | 2012-09-19 | 西安昆仑液压传动机械厂 | Coaxial compressor cylinder two-stage compression device |
| CN103016306A (en) * | 2012-12-04 | 2013-04-03 | 中国航空工业集团公司北京航空精密机械研究所 | Ventilation booster pump |
| CN103470473A (en) * | 2013-09-26 | 2013-12-25 | 天津市海雅实业有限公司 | Hydraulic gas vacuum pump |
| CN103742352B (en) * | 2014-01-16 | 2016-01-13 | 毛永波 | Bolt type piston air pressure turns hydraulic energy source Circulated power system |
| CN103742352A (en) * | 2014-01-16 | 2014-04-23 | 毛永波 | Screw type piston energy cycle power system capable of converting air pressure into hydraulic pressure |
| CN104214071B (en) * | 2014-09-09 | 2017-02-15 | 武汉齐达康环保科技股份有限公司 | Reciprocating plunger type gas compressor and method |
| CN104214071A (en) * | 2014-09-09 | 2014-12-17 | 武汉齐达康环保科技有限公司 | Reciprocating plunger type gas compressor and method |
| CN104595155A (en) * | 2014-12-30 | 2015-05-06 | 成都烃源科技有限责任公司 | Long-stroke hydraulically-controlled natural gas compressor |
| CN104595155B (en) * | 2014-12-30 | 2016-06-15 | 成都烃源科技有限责任公司 | A kind of long stroke hydraulic control natural gas compressor |
| CN107387389A (en) * | 2017-08-23 | 2017-11-24 | 四川达灿石油设备有限公司 | A kind of fluid end of fracturing pump |
| CN109653985A (en) * | 2018-12-13 | 2019-04-19 | 武汉齐达康环保科技股份有限公司 | A kind of hydrogen gas compressor host and compression method |
| CN110821781A (en) * | 2019-12-26 | 2020-02-21 | 宁波文泽机电技术开发有限公司 | Hydraulic air compressor |
| CN111005854A (en) * | 2019-12-26 | 2020-04-14 | 宁波文泽机电技术开发有限公司 | Air compressor |
| CN113775504A (en) * | 2021-11-09 | 2021-12-10 | 东营众志石油工程技术有限公司 | Intelligence associated gas supercharging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W104999 Conclusion of examination: The patent rights of claim No. 200620088069.5 of utility model 1 and 3-5 shall be invalid, and the patent shall be maintained on the basis of claim 2. Decision date of declaring invalidation: 20140718 Decision number of declaring invalidation: 23307 Denomination of utility model: Novel hydraulic drive natural gas reciprocating compressor Granted publication date: 20070912 Patentee: Qingdao Lvke Auto Gas Devlopment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20150817 |
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| EXPY | Termination of patent right or utility model |