CN201843746U - Differential pressure power booster - Google Patents
Differential pressure power booster Download PDFInfo
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- CN201843746U CN201843746U CN201020577756XU CN201020577756U CN201843746U CN 201843746 U CN201843746 U CN 201843746U CN 201020577756X U CN201020577756X U CN 201020577756XU CN 201020577756 U CN201020577756 U CN 201020577756U CN 201843746 U CN201843746 U CN 201843746U
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- 239000007789 gas Substances 0.000 abstract 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 6
- 230000006835 compression Effects 0.000 abstract 4
- 238000007906 compression Methods 0.000 abstract 4
- 239000003345 natural gas Substances 0.000 abstract 3
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Abstract
A differential pressure power supercharger is applied to the technical field of natural gas exploitation, and the pressure of a high-pressure gas well is used for increasing the pressure of the low-pressure gas well. The driving cylinder and the compression cylinder are oppositely connected together, a piston rod is arranged between the driving cylinder and the compression cylinder, a left cavity of the driving cylinder is communicated with the high-pressure left air inlet and outlet pipe, and a right cavity of the driving cylinder is communicated with the high-pressure right air inlet and outlet pipe. The high-pressure left air inlet and outlet pipe and the high-pressure right air inlet and outlet pipe are respectively connected with a two-position four-way reversing valve; the two-position four-way reversing valve is connected with a high-pressure gas inlet pipe. The left cavity and the right cavity of the compression cylinder are respectively provided with a low-pressure gas inlet and a low-pressure gas compressed outlet, a check valve is fixed on a low-pressure gas inlet pipeline and is connected with a low-pressure gas inlet pipe through the check valve; the compression cylinder discharge pipe is connected through a one-way valve. The effect is as follows: the natural gas of the low-pressure gas well can be exploited by using the natural gas of the high-pressure gas well as a driving force under the condition of no external power source, a large amount of production cost can be saved, and meanwhile, the formation pressure is effectively protected.
Description
Technical field
The utility model relates to the natural gas extraction technical field, and particularly a kind of pressure that utilizes high-pressure gas well promotes the natural gas boosting equipment of low-pressure gas well pressure, is a kind of natural gas boosting machine of exploiting low-pressure gas well.
Background technique
Along with large-scale developing and utilizing of natural gas resource, a lot of natural gas fields enter the middle and later periods exploitation, the formation gas storage volume reduces, formation gas pressure descends thereupon, the decline gradually of gas well pressure, because of exploitation gas well pressure does not reach yet cumulative year after year thereupon of the gas well of closing down, when the pressure of a lot of gas wells also can not adapt to line transportation pressure and requires, will carry out supercharging to stratum gas outlet pressure and promote and satisfy line transportation.Chinese patent publication number: CN201106440 discloses a kind of " single well pressure boost gas production device ".Feature is: what compressor adopted is helical-lobe compressor, gas engine is connected with helical-lobe compressor by clutch speed reducer, the helical-lobe compressor suction port has pipeline to connect gas production wellhead, the helical-lobe compressor relief opening has pipeline to connect the inlet of cooler, the outlet of cooler has pipeline to connect the inlet of oil and water seperator, and the air outlet of oil and water seperator connects gas line network; The discharge channel of oil and water seperator has pipeline connecting screw rod compressor inlet, is fixed with belt pulley on the gas engine line shaft, and drivign belt is connected to the belt pulley of cooler transmission shaft.Effect is: can finish automatically pressure boost gas production continuously.These two inventions all are the traditional compressors that adopt, and adopt traditional compressor, not only to consume a large amount of energy, and the equipment operation noise is big, the equipment maintenance cost height. Chinese patent publication number: CN2809263 provides a kind of " hydraulic piston type natural gas compressor ", connected oil hydraulic cylinder is set between two cylinders, cylinder and oil hydraulic cylinder adopt same piston rod, cylinder-piston assembly is positioned at the piston rod two ends, hydraulic cylinder piston is positioned at the middle part, be respectively arranged with the oil hydraulic cylinder guide sleeve at oil hydraulic cylinder and two cylinder joints, oil hydraulic cylinder guide sleeve place is provided with hydraulic oil and imports and exports, and cylinder and oil hydraulic cylinder are combined into hydraulic cylinder.Use hydraulic transmission and permanent power control techniques in piston compressor, Hydraulic Power Transmission System has replaced bent axle, the linkage mechanism system of traditional mechanical formula piston compressor.The self oiling loop structure has saved two cover lubrication systems and can guarantee lubricated reliable again.
Summary of the invention
The purpose of this utility model is: a kind of differential pressure power booster is provided, utilizes the pressure difference of rock gas high-pressure gas well and low-pressure gas well to drive exploitation low pressure natural gas well as power, realize high pressure, low-pressure gas well joint group synchronous production.Solve owing to low yield low-pressure gas well strata pressure deficiency the problem that low yield low pressure gas field is difficult to exploit.
The technical solution adopted in the utility model is: the differential pressure power booster, mainly by the compression cylinder discharge tube, one-way valve, small piston, piston rod, big piston, drive cylinder, the right air inlet-outlet pipe of high pressure, two-position four way change valve, high pressure left side air inlet-outlet pipe, compression cylinder and drive cylinder gas outlet pipe are formed, it is characterized in that: drive cylinder is relative with compression cylinder to link together, the center line of drive cylinder and the center line of compression cylinder are same straight line, a piston rod is arranged between drive cylinder and the compression cylinder, two ends at piston rod are fixed with big piston and small piston respectively, big piston is in drive cylinder, and small piston is in compression cylinder.Big piston is divided into left chamber and right chamber with the drive cylinder inner chamber in drive cylinder.Drive cylinder left side chamber UNICOM high pressure left side air inlet-outlet pipe, the right air inlet-outlet pipe of the right chamber of drive cylinder UNICOM high pressure.High pressure left side air inlet-outlet pipe is connected two-position four way change valve respectively with the right air inlet-outlet pipe of high pressure; Two-position four way change valve connects the pressurized gas inlet pipe.Small piston is divided into left chamber and right chamber with the compression cylinder inner chamber in compression cylinder.The left chamber of compression cylinder and the right chamber of compression cylinder have the outlet after low-pressure gas import and the low-pressure gas compression respectively, are fixed with one-way valve respectively on two low-pressure gas inlet line, and connect the low-pressure gas inlet pipe by one-way valve; Be fixed with one-way valve respectively on two low-pressure gas outlet lines, and connect the compression cylinder discharge tube by one-way valve, the compression cylinder discharge tube is connected with knock out drum, and the outlet of knock out drum can connect total output gas tube.
The diameter of described big piston is between 200～600mm, and the diameter of small piston is between 100～500mm.
The working principle of summary the utility model differential pressure power booster.Consult Fig. 1.High-pressure natural gas enters the right-hand member of drive cylinder 8 by pressurized gas inlet pipe 11 and two-position four way change valve 10 and the right air inlet-outlet pipe 9 of high pressure, big piston 7 is to left movement, big piston 7 promotes small pistons 5 to left movement and compress gas in compression cylinder 14 left ends by piston rod 6, and the gas in compression cylinder 14 left ends enters compression cylinder discharge tube 3 through one-way valve 4; Two-position four way change valve 10 picked up signal commutation when big piston 7 arrives drive cylinder 8 left ends, at this moment pressurized gas enter the left end of drive cylinder 8 by pressurized gas inlet pipe 11 and two-position four way change valve 10 and high pressure left side air inlet-outlet pipe 12, big piston 7 moves right, big piston 7 drives small pistons 5 by piston rod 6 and moves right and compress gas in compression cylinder 14 right-hand members, and the gas in compression cylinder 14 right-hand members enters compression cylinder discharge tube 3 through one-way valve 4; Two-position four way change valve picked up signal then high pressure air inlet-outlet pipe 9 air inlets that commutate when same big piston 7 moves to drive cylinder 8 right-hand members, air inlet-outlet pipe 12 exhausts of a high pressure left side.In the 5 reciprocating whiles of small piston, low pressure natural gas by low-pressure gas inlet pipe 13 respectively from compression cylinder 14 two ends in one-way valve 4 enters compression cylinder 14.Can make drive cylinder 8 and compression cylinder 14 realize continuous to-and-fro motion by two-position four way change valve 10 controls like this.And be through the high-pressure natural gas after the step-down from the gas that drive cylinder 8 is discharged, the high-pressure natural gas after the step-down enters drive cylinder gas outlet pipe 15 by two-position four way change valve 10, enters compression cylinder discharge tube 3 again; The rock gas through after the supercharging that compression cylinder 14 is discharged enters compression cylinder discharge tube 3 equally, and the rock gas of these two kinds of different pressures enters knock out drum 2 together, finally enters the defeated pipe network of rock gas outward by total output gas tube 1 together.
Input, output one-way valve 4 are all arranged in each air chamber end cap of compression cylinder 14 two ends, and rock gas drives cylinder 8 and is connected with two-position four way change valve 10.When the input high-pressure natural gas, differential pressure power booster drive cylinder 8 and compression cylinder 14 are interacted, make reciprocating motion of the pistons, utilize differential pressure to drive exploitation low pressure well rock gas.The inlet and outlet time of high-pressure natural gas is by two-position four way change valve 10 controls, making full use of the pressure that this working principle makes high-pressure gas well obtains discharging, the gas pressure of low-pressure gas well improves, make the gas pressure of low pressure well reach the outer pressure of failing rock gas, improve the recovery rate of rock gas with this.
Described drive cylinder mainly is made up of drive cylinder cylinder sleeve, drive cylinder left side lid, the right lid of drive cylinder and bolt cylinder.The right lid of drive cylinder left side lid and drive cylinder is arranged respectively at the two ends of drive cylinder cylinder sleeve, and the right lid of drive cylinder left side lid and drive cylinder is fixed on the two ends of drive cylinder cylinder sleeve by bolt cylinder; Cover on a drive cylinder left side and to be fixed with the air inlet-outlet pipe joint, cover on the drive cylinder right side and be provided with the drive cylinder port; Center hole is stamped on the drive cylinder right side, and piston rod passes center hole, and there is big piston the end of piston rod, and the piston pressure cap is fixed on the piston rod end big piston is fixed on the piston rod left end; Between right lid of drive cylinder and piston rod rod seal circle and seal ring gland are arranged, rod seal encloses seal action.
Described compression cylinder mainly is made up of compression cylinder cylinder sleeve, compression cylinder left side lid, the right lid of compression cylinder and bolt cylinder.The right lid of compression cylinder left side lid and compression cylinder is arranged respectively at the two ends of compression cylinder cylinder sleeve, and the right lid of compression cylinder left side lid and compression cylinder is fixed on the two ends of compression cylinder cylinder sleeve by bolt cylinder; Cover on the compression cylinder right side and to be fixed with low pressure gas air inlet-outlet pipe joint, covered the compression cylinder port on a compression cylinder left side; Center hole is stamped on a compression cylinder left side, and piston rod passes center hole, and there is small piston the end of piston rod, and the piston pressure cap is fixed on the piston rod end small piston is fixed on the piston rod right-hand member; Between compression cylinder left side lid and piston rod rod seal circle and seal ring gland are arranged, rod seal encloses seal action.
In the middle of drive cylinder and compression cylinder a pump valve body is arranged, compression cylinder and drive cylinder are fixed on the pump valve body with bolt cylinder respectively; Piston rod passes from the center hole of right lid of drive cylinder and compression cylinder left side lid, between pump valve body and the right lid of drive cylinder locating stud is arranged, and between pump valve body and a compression cylinder left side lid locating stud is arranged; The pump valve body has center hole, and the center line of pump valve body center hole and piston rod center line are on same straight line; In the pump valve body center hole and at upper cover of piston rod annular sliding sleeve is arranged, be with a pilot valve core on sliding sleeve, annular sliding sleeve pressure cap screw thread is fixed on the end of sliding sleeve and pilot valve core is fixed on the sliding sleeve; Piston rod middle part outer wall has annular boss, and sliding sleeve pressure cap inwall has annular groove, and the annular boss of piston rod is in the annular groove of sliding sleeve pressure cap.The compression cylinder port be communicated with the right air inlet-outlet pipe of the high pressure on drive cylinder port and the pump valve body UNICOM that communicates with the low-pressure gas inlet pipe by the pump valve body; When piston rod when the sliding sleeve inwall horizontally slips, the annular boss of piston rod can promote sliding sleeve and sliding sleeve pressure cap and drive pilot valve core to horizontally slip.
Pilot valve gland fixed hole perpendicular to piston rod is arranged on the pump valve body, and the pilot valve gland is that annular fixed cover is arranged at the cylinder bodily form and top; On the annular fixed cover fixed hole is arranged.By the valve gap bolt be fixed on the pilot valve gland on the pump valve body and the lower end of pilot valve gland in the fixed hole of pump valve body; The pilot valve gland has a center hole, and pilot valve gland central hole connects the scavenging air valve outlet pipe; In pilot valve gland center hole both sides a gas port is arranged respectively.The upper end of gas port respectively with annular fixed cover on transverse holes UNICOM; In two transverse holes, be fixed with right suction tude of scavenging air valve and scavenging air valve left side suction tude respectively.Lower end at the pilot valve gland is fixed with circular valve plate by sunk screw; Valve plate has center hole, valve plate center hole and UNICOM relative with pilot valve gland center hole, and valve plate center hole both sides have a hole respectively, relative with pilot valve gland the gas port respectively and UNICOM in the hole of valve plate center hole both sides.When sliding sleeve drive pilot valve core horizontally slips, when the pilot valve spool slides near drive cylinder one side (i.e. left side), the right suction tude of valve plate center hole and scavenging air valve UNICOM; When the pilot valve spool slides near compression cylinder one side (being the right side), valve plate center hole and scavenging air valve left side suction tude UNICOM, the control two-position four way change valve commutates, and plays the effect of pilot valve.The right suction tude of scavenging air valve is connected with the right inlet hole of the scavenging air valve of two-position four way change valve.Scavenging air valve left side suction tude is connected with the scavenging air valve left side inlet hole of two-position four way change valve.The scavenging air valve outlet pipe is communicated with the drive cylinder gas outlet pipe.
A left port is arranged on the pilot valve gland, the left port of pilot valve gland and the relative and UNICOM of the right drive cylinder port that covers of drive cylinder, the left port of pilot valve gland connects by pipeline and is connected with the scavenging air valve exhaust port of two-position four way change valve; A right port is arranged on the pilot valve gland, and the right port of pilot valve gland connects with the right inlet hole of the scavenging air valve of two-position four way change valve by the right suction tude of scavenging air valve and is connected.
In order to make the compression cylinder cooling, in the compression cylinder outer cover cooling cylinder barrel is housed, cover on the compression cylinder right side and to be fixed with two water-cooling tubes, closed cavity of formation between cooling inner wall of cylinder and compression cylinder left side lid and right lid of compression cylinder and the compression cylinder cylinder barrel outer wall, closed cavity and water-cooling tube UNICOM; Between cooling cylinder barrel and compression cylinder left side lid and cooling cylinder barrel and the right lid of compression cylinder cooling cylinder seal ring is arranged respectively, cooling cylinder seal ring is used to cool off the sealing at cylinder barrel two ends; Water-cooling tube can be connected with cooling water tank and is used for the cooled compressed cylinder.
On the outer wall of big piston, be with the big piston ring, on the outer wall of small piston, be with the small piston ring.
In order to improve sealing, between drive cylinder cylinder sleeve and the drive cylinder left side lid and between drive cylinder cylinder sleeve and the right lid of drive cylinder compression cylinder end cap seal ring is being arranged; Between compression cylinder cylinder sleeve and the compression cylinder left side lid and between drive cylinder cylinder sleeve and the right lid of compression cylinder compression cylinder end cap seal ring is being arranged.
Rod seal circle, big piston ring, small piston ring and pilot valve core adopt self lubricating materials such as teflon or polyether-ether-ketone (PEEK) resin, drive cylinder inboard wall of cylinder liner surface, compression cylinder inboard wall of cylinder liner surface and the chromium plating of piston rod outer surface are in case moisture in the rock gas and salinity corrode cylinder barrel.
The beneficial effects of the utility model: the utility model differential pressure power booster; can be under the situation of no external power source (electric energy, fuel oil, combustion gas etc.); utilize the rock gas of the rock gas of high-pressure gas well for driving force exploitation low-pressure gas well; can save a large amount of cost of production, also effectively protect strata pressure simultaneously.
1, the utility model utilizes high-pressure gas well to drive the production of low-pressure gas well, is the continuous to-and-fro motion of drive power source piston with pressurized gas, gives the low-pressure gas supercharging.Promptly utilize pressure reduction between gas field high-pressure gas well and the low-pressure gas well as driving force, drive exploitation because individual well pressure descends and to utilize the low-pressure gas well of strata pressure ordinary production.After low pressure natural gas by the supercharging of this equipment reaches delivery pressure, together enter the gas gathering and transportation pipe network, realized with equal pressure defeatedly outward, effectively improved the recovery rate of low pressure natural gas well with the rock gas of high-pressure gas well.The whole production flow process does not need external power, has realized zero cost operation production.
2, the utility model adopts totally-enclosed ring type pipeline, no gas leakage and loss.Can utilize the moving belt movable valve plug of valve piece to adjust intake and exhaust and commutation automatically, make the gas of drive cylinder and the gas after the supercharging be pooled to together airtight outer the failing of manifold flow process.
3, adopt the selflubricating parts, needn't change metal parts in 100,000 hours; Adopt from cooling off the circulatory system, cool off the circulatory system certainly and utilize the temperature difference automatic cycle, need not power equipment.
4, the utility model differential pressure power booster is easy to use, only needs three control valves of opening and closing just can realize the startup of equipment, and is even also can not damage pressure-increasing machine because of gas well variation in pressure hang-up, reliable and can realize unmanned, remote monitoring.
5, Zheng Ti good airproof performance, integral outer does not have motive sealing, is internal leakage even reveal yet, and does not exist component wear to cause the rock gas phenomenon that leaks, and is safe and reliable, and the simple volume of device structure is little, low cost of manufacture.
6, the utility model can make the rock gas adherence pressure of low pressure well by supercharging equipment, makes the pressure of low pressure well rise to 6～8MPa from 0.5MPa, reaches exploitation and outer defeated requirement.
7, the utility model is compared with traditional rock gas compression equipment, has compact structure, volume is little, easy to use, the characteristics that operating cost is low.Can accomplish exploitation continuously and operation continuously.Simultaneously, this equipment is provided with modulating valve, can accurately regulate pressure, reaches transient equiliblium, the protection strata pressure.
8, complete machine operation noise is little, no waste gas and waste oil discharging, non-environmental-pollution.
Description of drawings
Fig. 1 is the utility model differential pressure power booster structural principle schematic representation.
Fig. 2 is a differential pressure power booster plan structure schematic representation.
Fig. 3 is the generalized section of drive cylinder and compression cylinder.
Fig. 4 is embodiment 2 a structural representation.
Among the figure, 1. total output gas tube, 2. knock out drum, 3. compression cylinder discharge tube, 4. one-way valve, 5. small piston, 6. piston rod, 7. big piston, 8. drive cylinder, 9. the right air inlet-outlet pipe of high pressure, 10. two-position four way change valve, 11. pressurized gas inlet pipes, 12. high pressure left side air inlet-outlet pipe, 13. low-pressure gas inlet pipes, 14. compression cylinders, 15. the drive cylinder gas outlet pipe, 16. scavenging air valves left side suction tude, 17. scavenging air valve outlet pipes, 18. the right suction tude of scavenging air valve, 19. the scavenging air valve adpting flange, 20. bolt cylinders, 21. drive cylinders left side lid, 22. air inlet-outlet pipe joint, 23. the piston pressure cap, 24. spring pads, 25. drive cylinder cylinder sleeves, 26. the right lid of drive cylinder, 27. the pump valve body, 28. sliding sleeves, 29. valve plates, 30. valve gap bolt, 31. pilot valve core, 32. sunk screws, 33. compression cylinders left side lid, 34. cooling cylinder barrel, 35. the compression cylinder cylinder sleeve, 36. water-cooling tubes, the right lid of 37. compression cylinders, 38. cooling cylinder seal ring, 39. the small piston ring, 40. rod seal circles, 41. sliding sleeve pressure caps, 42. seal ring gland, 43. the pilot valve gland, 44. locating studs, 45. big piston rings, 46. the right lid of scavenging air valve, 47. scavenging air valve left side lid, the right inlet hole of 48. scavenging air valves, 49. scavenging air valves left side inlet hole, 50. the asymptotic switch of magnetic, 51. two-position four-way solenoid valve, 52. drive cylinder ports, 53. compression cylinder ports.
Embodiment
Embodiment 1: with a differential pressure power booster is example, and the utility model is described in further detail.
Consult Fig. 1.The differential pressure power booster mainly is made up of compression cylinder discharge tube 3, one-way valve 4, small piston 5, piston rod 6, big piston 7, drive cylinder 8, the right air inlet-outlet pipe 9 of high pressure, two-position four way change valve 10, high pressure left side air inlet-outlet pipe 12, compression cylinder 14 and drive cylinder gas outlet pipe 15.
Drive cylinder 8 and compression cylinder 14 relative linking together, the center line of the center line of drive cylinder 8 and compression cylinder 14 is a same straight line, a piston rod 6 is arranged between drive cylinder 8 and the compression cylinder 14, be fixed with big piston 7 and small piston 5 respectively at the two ends of piston rod 6, big piston 7 is in drive cylinder 8, and small piston 5 is in compression cylinder 14.Big piston 7 is divided into left chamber and right chamber with drive cylinder 8 inner chambers in drive cylinder 8.The left air inlet-outlet pipe 12 of drive cylinder 8 left chamber UNICOM's high pressure, the right air inlet-outlet pipe 9 of drive cylinder 8 right chamber UNICOM's high pressure.High pressure left side air inlet-outlet pipe 12 is connected two-position four way change valve 10 respectively with the right air inlet-outlet pipe 9 of high pressure; Two-position four way change valve 10 connects pressurized gas inlet pipe 11.Small piston 5 is divided into left chamber and right chamber with compression cylinder 14 inner chambers in compression cylinder 14.The left chamber of compression cylinder 14 and the right chamber of compression cylinder 14 have the outlet after low-pressure gas import and the low-pressure gas compression respectively, are fixed with one-way valve 4 respectively on two low-pressure gas inlet line, and connect low-pressure gas inlet pipe 13 by one-way valve 4; Be fixed with one-way valve 4 respectively on two low-pressure gas outlet lines, and connect compression cylinder discharge tube 3 by one-way valve 4, compression cylinder discharge tube 3 is connected with knock out drum 2, and the outlet of knock out drum 2 connects total output gas tube 1.The diameter of described big piston 7 is at 280mm, and the diameter of small piston 5 is at 200mm.The reciprocating stroke of piston rod 6 is 400mm.
Consult Fig. 3.Described drive cylinder 8 mainly is made up of drive cylinder cylinder sleeve 25, drive cylinder left side lid 21, the right lid 26 of drive cylinder and bolt cylinder 20.The right lid 26 of drive cylinder left side lid 21 and drive cylinder is arranged respectively at the two ends of drive cylinder cylinder sleeve 25, and the right lid 26 of drive cylinder left side lid 21 and drive cylinder is fixed on the two ends of drive cylinder cylinder sleeve 25 by bolt cylinder 20 and spring pad 24; On drive cylinder left side lid 21, be fixed with air inlet-outlet pipe joint 22, on the right lid 26 of drive cylinder, a drive cylinder port 64 arranged; The right lid 26 of drive cylinder has center hole, and piston rod 6 passes center hole, and there is a big piston 7 end of piston rod 6, and piston pressure cap 23 is fixed on piston rod 6 ends big piston 7 is fixed on piston rod 6 left ends; Between right lid 26 of drive cylinder and piston rod 6, rod seal circle 40 and seal ring gland 42 are arranged.
Described compression cylinder 14 mainly is made up of compression cylinder cylinder sleeve 35, compression cylinder left side lid 33, the right lid 37 of compression cylinder and bolt cylinder 20.The right lid 37 of compression cylinder left side lid 33 and compression cylinder is arranged respectively at the two ends of compression cylinder cylinder sleeve 35, and the right lid 37 of compression cylinder left side lid 33 and compression cylinder is fixed on the two ends of compression cylinder cylinder sleeve 35 by bolt cylinder 20 and spring pad 24; On the right lid 37 of compression cylinder, be fixed with low pressure gas air inlet-outlet pipe joint, on compression cylinder left side lid 33, a port arranged; Compression cylinder left side lid 33 has center hole, and piston rod 6 passes center hole, and there is a small piston 5 end of piston rod 6, and piston pressure cap 23 is fixed on piston rod 6 ends small piston 5 is fixed on piston rod 6 right-hand members; Between compression cylinder left side lid 33 and piston rod 6, rod seal circle 40 and seal ring gland 42 are arranged.
In the middle of drive cylinder 8 and compression cylinder 14 a pump valve body 27 is arranged, compression cylinder 14 and drive cylinder 8 are fixed on the pump valve body 27 with bolt cylinder 20 and spring pad 24 respectively; Piston rod 6 passes from the center hole of right lid 26 of drive cylinder and compression cylinder left side lid 33, between pump valve body 27 and the right lid 26 of drive cylinder locating stud 44 is arranged, and between pump valve body 27 and compression cylinder left side lid 33 locating stud 44 is arranged; Pump valve body 27 has center hole, and the center line of pump valve body 27 center holes and piston rod 6 center lines are on same straight line; Pump valve body 27 center holes are interior and be with annular sliding sleeve 28 on piston rod 6, are with a pilot valve core 31 on sliding sleeve 28, and annular sliding sleeve pressure cap 41 screw threads are fixed on the end of sliding sleeve 28 and pilot valve core 31 is fixed on the sliding sleeve 28; Piston rod 6 middle part outer walls have annular boss, and sliding sleeve pressure cap 41 inwalls have annular groove, and the annular boss of piston rod 6 is in the annular groove of sliding sleeve pressure cap 41.When piston rod 6 when sliding sleeve 28 horizontally slips, the annular boss of piston rod 6 can promote sliding sleeve 28 and sliding sleeve pressure cap 41 and drive pilot valve core 31 to horizontally slip.
Pilot valve gland 43 fixed holes perpendicular to piston rod 6 are arranged on pump valve body 27, and pilot valve gland 43 has annular fixed cover for the cylinder bodily form and top; On the annular fixed cover fixed hole is arranged.By valve gap bolt 30 be fixed on pilot valve gland 43 on the pump valve body 27 and the lower end of pilot valve gland 43 in the fixed hole of pump valve body 27; Pilot valve gland 43 has a center hole, and pilot valve gland 43 center holes communicate with scavenging air valve outlet pipe 15 by pipeline 17; In pilot valve gland 43 center hole both sides a gas port is arranged respectively.The upper end of gas port respectively with annular fixed cover on transverse holes UNICOM; In two transverse holes, be fixed with right suction tude 18 of scavenging air valve and scavenging air valve left side suction tude 16 respectively.Lower end at pilot valve gland 43 is fixed with circular valve plate 29 by sunk screw 32; Valve plate 29 has center hole, valve plate 29 center holes and UNICOM relative with pilot valve gland 43 center holes, and valve plate 29 center hole both sides have a hole respectively, relative with pilot valve gland 43 the gas ports respectively and UNICOM in the hole of valve plate 29 center hole both sides.When sliding sleeve 28 drive pilot valve cores 31 horizontally slip, when pilot valve spool 31 slides near drive cylinder one side (i.e. left side), the right suction tude of valve plate 29 center holes and scavenging air valve 18 UNICOMs; When pilot valve spool 31 slides near compression cylinder one side (being the right side), valve plate 29 center holes and scavenging air valve left side suction tude 16 UNICOMs, control two-position four way change valve 10 commutates, and plays the effect of pilot valve.
Consult Fig. 2.Scavenging air valve 10 is provided with right lid 46 of scavenging air valve and scavenging air valve left side lid 47, the right lid 46 of scavenging air valve is provided with the right inlet hole 48 of scavenging air valve, scavenging air valve left side lid 47 is provided with scavenging air valve left side inlet hole 49, the right suction tude 18 of scavenging air valve is connected with the right inlet hole 48 of the scavenging air valve of two-position four way change valve 10, scavenging air valve left side suction tude 16 is connected with the scavenging air valve left side inlet hole 49 of two-position four way change valve 10, and scavenging air valve outlet pipe 17 is communicated with drive cylinder gas outlet pipe 15.Two-position four way change valve 10 is sides that are fixed on pump valve body 27 outer walls by scavenging air valve adpting flange 19.
Consult Fig. 3.A left port is arranged on pilot valve gland 43, the left port of pilot valve gland 43 is by the right inlet hole of pipeline 18 and scavenging air valve 48 relative and UNICOMs, and the left port of pilot valve gland 43 connects with the scavenging air valve left side lid 47 of two-position four way change valve 10 by pipeline and is connected; A right port is arranged on pilot valve gland 43, and the right port of pilot valve gland 43 connects with the scavenging air valve left side lid 47 of two-position four way change valve 10 by pipeline 16 and is connected.
In compression cylinder 14 outer cover a cooling cylinder barrel 34 is housed, on the right lid 37 of compression cylinder, be fixed with two water-cooling tubes 36, form a closed cavity, closed cavity and water-cooling tube 36 UNICOMs between cooling cylinder barrel 34 and compression cylinder left side lid 33 and right lid 37 of compression cylinder and the compression cylinder 14; Between cooling cylinder barrel 34 and compression cylinder left side lid 33 and cooling cylinder barrel 34 and the right lid 37 of compression cylinder, cooling cylinder seal ring 38 is arranged; Water-cooling tube 36 is connected employing convection circulation water cooling compression cylinder 14 with overhead cooling water tank.
On the outer wall of big piston 7, be with a big piston ring 45, on the outer wall of small piston 5, be with a small piston ring 39.
Between drive cylinder cylinder sleeve 25 and the drive cylinder left side lid 21 and between drive cylinder cylinder sleeve 25 and the right lid 26 of drive cylinder compression cylinder end cap seal ring is being arranged; Between compression cylinder cylinder sleeve 35 and the compression cylinder left side lid 33 and between drive cylinder cylinder sleeve 25 and the right lid 37 of compression cylinder compression cylinder end cap seal ring is being arranged.
Embodiment 2: consult Fig. 4.Embodiment 2 is substantially the same manner as Example 1, difference is: described two-position four way change valve 10 is used a two-position four-way solenoid valve 51 instead, be fixed with a progressive switch 50 of magnetic respectively on the outer of drive cylinder left side lid 21 and on the outer of the right lid 26 of drive cylinder, the progressive switch 50 of magnetic connects two-position four-way solenoid valve 51 respectively, and the electrical signal control two-position four-way solenoid valve 51 that is fed back by the progressive switch 50 of magnetic commutates.
Claims (9)
1. differential pressure power booster, mainly by compression cylinder discharge tube (3), one-way valve (4), small piston (5), piston rod (6), big piston (7), drive cylinder (8), the right air inlet-outlet pipe (9) of high pressure, two-position four way change valve (10), high pressure left side air inlet-outlet pipe (12), compression cylinder (14) and drive cylinder gas outlet pipe (15) are formed, it is characterized in that: drive cylinder (8) and relative the linking together of compression cylinder (14), the center line of the center line of drive cylinder (8) and compression cylinder (14) is a same straight line, between drive cylinder (8) and the compression cylinder (14) piston rod (6) is arranged, be fixed with big piston (7) and small piston (5) respectively at the two ends of piston rod (6), big piston (7) is in drive cylinder (8), and small piston (5) is in compression cylinder (14); Big piston (7) is divided into left chamber and right chamber with drive cylinder (8) inner chamber in drive cylinder (8), the left chamber of drive cylinder (8) UNICOM high pressure left side air inlet-outlet pipe (12), the right air inlet-outlet pipe (9) of the right chamber of drive cylinder (8) UNICOM high pressure; High pressure left side air inlet-outlet pipe (12) is connected two-position four way change valve (10) respectively with the right air inlet-outlet pipe of high pressure (9); Two-position four way change valve (10) connects pressurized gas inlet pipes (11); Small piston (5) is divided into left chamber and right chamber with compression cylinder (14) inner chamber in compression cylinder (14); The right chamber of the left chamber of compression cylinder (14) and compression cylinder (14) has the outlet after low-pressure gas import and the low-pressure gas compression respectively, on two low-pressure gas inlet line, be fixed with one-way valve (4) respectively, and connect low-pressure gas inlet pipe (13) by one-way valve (4); Be fixed with one-way valve (4) respectively on two low-pressure gas outlet lines, and connect compression cylinder discharge tube (3) by one-way valve (4), compression cylinder discharge tube 3 is connected with knock out drum (2).
2. differential pressure power booster according to claim 1 is characterized in that: the diameter of described big piston (7) is between 200～600mm, and the diameter of small piston (5) is between 100～500mm.
3. differential pressure power booster according to claim 1 is characterized in that: described drive cylinder (8) mainly is made up of drive cylinder cylinder sleeve (25), drive cylinder left side lid (21), the right lid of drive cylinder (26) and bolt cylinder (20); The right lid of drive cylinder left side lid (21) and drive cylinder (26) is arranged respectively at the two ends of drive cylinder cylinder sleeve (25), and the right lid of drive cylinder left side lid (21) and drive cylinder (26) is fixed on the two ends of drive cylinder cylinder sleeve (25) by bolt cylinder (20); On drive cylinder left side lid (21), be fixed with air inlet-outlet pipe joint (22), on the right lid of drive cylinder (26), be provided with drive cylinder port (52); The right lid of drive cylinder (26) has center hole, and piston rod (6) passes center hole, and there is big piston (7) end of piston rod (6), and piston pressure cap (23) is fixed on piston rod (6) end big piston (7) is fixed on piston rod (6) left end; Between right lid of drive cylinder (26) and piston rod (6), rod seal circle (40) and seal ring gland (42) are arranged.
4. differential pressure power booster according to claim 1 is characterized in that: described compression cylinder (14) mainly is made up of compression cylinder cylinder sleeve (35), compression cylinder left side lid (33), the right lid of compression cylinder (37) and bolt cylinder (20); The right lid of compression cylinder left side lid (33) and compression cylinder (37) is arranged respectively at the two ends of compression cylinder cylinder sleeve (35), and the right lid of compression cylinder left side lid (33) and compression cylinder (37) is fixed on the two ends of compression cylinder cylinder sleeve (35) by bolt cylinder (20); On the right lid of compression cylinder (37), be fixed with low pressure gas air inlet-outlet pipe joint, on compression cylinder left side lid (33), compression cylinder port (53) arranged; Compression cylinder left side lid (33) has center hole, and piston rod (6) passes center hole, and there is small piston (5) end of piston rod (6), and piston pressure cap (23) is fixed on piston rod (6) end small piston (5) is fixed on piston rod (6) right-hand member; Between compression cylinder left side lid (33) and piston rod (6), rod seal circle (40) and seal ring gland (42) are arranged.
5. differential pressure power booster according to claim 1 is characterized in that: have a pump valve body (27), compression cylinder (14) and drive cylinder (8) to use bolt cylinder (20) to be fixed on the pump valve body (27) respectively in the middle of drive cylinder (8) and compression cylinder (14); Piston rod (6) passes from the center hole of right lid of drive cylinder (26) and compression cylinder left side lid (33), between pump valve body (27) and the right lid of drive cylinder (26) locating stud (44) is arranged, and between pump valve body (27) and compression cylinder left side lid (33) locating stud (44) is arranged; Pump valve body (27) has center hole, and the center line of pump valve body (27) center hole and piston rod (6) center line are on same straight line; In pump valve body (27) center hole and on piston rod (6), be with annular sliding sleeve (28), be with a pilot valve core (31) on sliding sleeve (28), annular sliding sleeve pressure cap (41) screw thread is fixed on the end of sliding sleeve (28) and pilot valve core (31) is fixed on the sliding sleeve (28); Piston rod (6) middle part outer wall has annular boss, and sliding sleeve pressure cap (41) inwall has annular groove, and the annular boss of piston rod (6) is in the annular groove of sliding sleeve pressure cap (41); Drive cylinder port (52) communicates with the right air inlet-outlet pipe 9 of the high pressure on the pump valve body (27).
6. according to claim 1,2,3,4 or 5 described differential pressure power boosters, it is characterized in that: pilot valve gland (a 43) fixed hole perpendicular to piston rod (6) is arranged on pump valve body (27), and pilot valve gland (43) has annular fixed cover for the cylinder bodily form and top; Annular has fixed hole on the fixed cover, by valve gap bolt (30) pilot valve gland (43) is fixed on that pump valve body (27) is gone up and the lower end of pilot valve gland (43) in the fixed hole of pump valve body (27); Pilot valve gland (43) has a center hole, and pilot valve gland (43) center hole connects scavenging air valve outlet pipe (17); In pilot valve gland (43) center hole both sides a gas port is arranged respectively, the upper end of gas port respectively with annular fixed cover on transverse holes UNICOM; In two transverse holes, be fixed with right suction tude (18) of scavenging air valve and scavenging air valve left side suction tude (16) respectively; Lower end at pilot valve gland (43) is fixed with circular valve plate (29) by sunk screw (32); Valve plate (29) has center hole, valve plate (29) center hole and UNICOM relative with pilot valve gland (43) center hole, valve plate (29) center hole both sides have a hole respectively, relative with pilot valve gland (43) the gas port respectively and UNICOM in the hole of valve plate (29) center hole both sides; The right suction tude of scavenging air valve (18) is connected with the right inlet hole of scavenging air valve (48) of two-position four way change valve (10), scavenging air valve left side suction tude (16) is connected with the scavenging air valve left side inlet hole (49) of two-position four way change valve (10), and scavenging air valve outlet pipe (17) is communicated with drive cylinder gas outlet pipe (15);
A left port is arranged on pilot valve gland (43), the left port of pilot valve gland (43) and the right relative and UNICOM of drive cylinder port (52) of covering (26) of drive cylinder, the intermediate exhaust hole of pilot valve gland (43) connects by pipeline (17) and is connected with the scavenging air valve outlet pipe (15) of two-position four way change valve (10); A right port is arranged on pilot valve gland (43), and the right port of pilot valve gland (43) connects with the right inlet hole of scavenging air valve (48) of two-position four way change valve (10) by the right suction tude of scavenging air valve (18) and is connected.
7. differential pressure power booster according to claim 6, it is characterized in that: cooling cylinder barrel (34) is housed in compression cylinder (14) outer cover, on the right lid of compression cylinder (37), be fixed with two water-cooling tubes (36), form a closed cavity, closed cavity and water-cooling tube (36) UNICOM between cooling cylinder barrel (34) inwall and compression cylinder left side lid (33) and right lid of compression cylinder (37) and compression cylinder (14) outer wall; Between cooling cylinder barrel (34) and compression cylinder left side lid (33) and cooling cylinder barrel (34) and the right lid of compression cylinder (37), cooling cylinder seal ring (38) is arranged respectively.
8. differential pressure power booster according to claim 6 is characterized in that: be with big piston ring (45) on the outer wall of big piston (7), be with small piston ring (39) on the outer wall of small piston (5).
9. differential pressure power booster according to claim 6 is characterized in that: between drive cylinder cylinder sleeve (25) and the drive cylinder left side lid (21) and between drive cylinder cylinder sleeve (25) and the right lid of drive cylinder (26) compression cylinder end cap seal ring is being arranged; Between compression cylinder cylinder sleeve (35) and the compression cylinder left side lid (33) and between drive cylinder cylinder sleeve (25) and the right lid of compression cylinder (37) compression cylinder end cap seal ring is being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020577756XU CN201843746U (en) | 2010-10-22 | 2010-10-22 | Differential pressure power booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020577756XU CN201843746U (en) | 2010-10-22 | 2010-10-22 | Differential pressure power booster |
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| Publication Number | Publication Date |
|---|---|
| CN201843746U true CN201843746U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020577756XU Expired - Lifetime CN201843746U (en) | 2010-10-22 | 2010-10-22 | Differential pressure power booster |
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| CN (1) | CN201843746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032145A (en) * | 2010-10-22 | 2011-04-27 | 中国石油天然气股份有限公司 | Differential pressure power booster |
| US12072127B2 (en) | 2021-06-17 | 2024-08-27 | Carrier Corporation | Refrigeration system and oil recovery method for the same |
-
2010
- 2010-10-22 CN CN201020577756XU patent/CN201843746U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032145A (en) * | 2010-10-22 | 2011-04-27 | 中国石油天然气股份有限公司 | Differential pressure power booster |
| CN102032145B (en) * | 2010-10-22 | 2012-10-17 | 中国石油天然气股份有限公司 | Differential pressure power booster |
| US12072127B2 (en) | 2021-06-17 | 2024-08-27 | Carrier Corporation | Refrigeration system and oil recovery method for the same |
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