CN202250677U - Closed oil piston natural gas substation compressor - Google Patents
Closed oil piston natural gas substation compressor Download PDFInfo
- Publication number
- CN202250677U CN202250677U CN201120321086XU CN201120321086U CN202250677U CN 202250677 U CN202250677 U CN 202250677U CN 201120321086X U CN201120321086X U CN 201120321086XU CN 201120321086 U CN201120321086 U CN 201120321086U CN 202250677 U CN202250677 U CN 202250677U
- Authority
- CN
- China
- Prior art keywords
- pressure
- gas
- valve
- pressure oil
- compression cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a closed oil piston natural gas substation compressor which comprises a high-pressure oil pump, a pressure control valve, a pressure oil tank, a liquid reversing valve, a flow sensor, a bridge type valve group, a gas compression tank group, a pressure sensor, a pressure relay, a high-pressure gas storage bottle, an automatic control system and the like, wherein an inlet valve is arranged beside an inlet of an inlet pipeline; and an outlet valve is arranged beside an outlet of an outlet pipeline. The closed oil piston natural gas substation compressor is characterized in that the pressure sensor is arranged behind the inlet valve; the pressure oil tank and the bridge type valve group are respectively connected onto the inlet pipeline behind the pressure sensor through a three-way pipe; the outlet pipeline is arranged on the diagonal line of the inlet pipeline of the bridge type valve group; the high-pressure gas storage bottle is arranged on the outlet pipeline through a three-way pipe; and the pressure relay is arranged between an outlet three-way pipe and the bridge type valve group. The closed oil piston natural gas substation compressor has the advantages of being energy-saving, environment-friendly, friction-free, leakage-free, noise-free, slow in temperature rise, high in work efficiency and the like.
Description
Technical field:
The invention belongs to rock gas compression technical field, the closed oily piston rock gas substation compressor that particularly a kind of gas station uses.
Background technique:
Rock gas as the energy it to use and transport all be under high-density state, to carry out, make rock gas reach high-density state just needs to consume a large amount of kinetic energy, the rock gas of high-density state has included huge pressure ability.
Rock gas substation aerator the substation natural gas compressor or the supercharging device of multiple different operating principle and structure occurred along with continuous advancement in technology and development.They roughly are divided into three types: bent axle piston type natural gas compressor, hydraulic piston type natural gas compressor, hydraulic compressed natural gas aerator.Its analysis on technical is following:
1) crank-connecting rod piston compressor
Its structure more complicated manufacturing is had relatively high expectations, but it is the traditional product of technological comparative maturity, uses wider.Its working principle is by cylinder, air valve and the reciprocating swept volume that piston constituted, and makes it constantly change (compression) back and forth and carry out.Back and forth promote piston 1 direct pressurized gas (referring to Fig. 1) by the motoring connecting rod; In the design in order to satisfy the specified compression discharge capacity and the requirement of electric motor starting moment of torsion and continuous operation; The design volume of cylinder 2 is all little, adopts implements spatial scalable compression in order to save kinetic energy.But the compression exhaust amount of piston mechanism once reciprocating motion differs greatly with the ratio of the air displacement of needs output.Therefore, crank rod movement mechanism must keep higher speed to compress continuously.Keep compressed natural gas to export continuously and also be equipped with pressure-stored tank specially.Can not only stores compression gas, reduce because the pressure pulsation of the discontinuous generation of compressor air-discharging, realize air feed and with the balance of gas.
But this type of compressor at work; If bleed pressure was carried out supercharging with regard to very high rock gas originally; The pressure that rock gas is very big can act on the piston of compression cylinder through suction valve, has formed huge pressure difference between the two and the another side of compressor piston is a normal pressure (barometric pressure).The crank of compressor (axle) linkage mechanism must receive very big moment of torsion, and motor also must be equipped with the high-power operation that just can carry out supercharging.And the motion of piston crank mechanism is the to-and-fro motion of strong inertia fast, also will produce a large amount of heats.Heat dissipation rate does not catch up with generation speed, can't leave at short notice, and the temperature of machine rises very fast, and wherein some transformation of energy is for noise, and the motion of adding piston is leaked, and the mechanical efficiency of whole compressor is not high.Adding the helper motor wind-cooling heat dissipating, is very big so need the total output of motor.In addition, the expansive force that is compressed gas acts directly on piston and the connecting rod, so compressor can not directly start; Compressor is as will restart the time; Must the pressurized gas behind the compressor be bled off, motor could drive " sky " load compressor start, so power consumption is very big.
2) hydraulic piston type natural gas compressor
Its basic functional principle is to utilize hydraulic system to promote piston and carry out compression work.In total travel, can both apply maximum functional thrust, not have the noise of inertia impact and initiation being compressed gas.Make full use of hydraulic system and obtain the characteristics of high pressure easily, with the direct driven plunger pressurized gas of high pressure oil.
On its structure two synergistic compression cylinders have been come the two ends on the same axis, the two ends of piston rod are displacers 1, and the centre is oil cylinder and piston 3 (referring to Fig. 2).Like this, the pressure that rock gas is huge can act on the two ends of piston, and stressed direction is just in time opposite, and huge pressure can be by positive and negative counteracting.Rock gas need the power of supercharging be exactly before the natural gas boosting after the supercharging power of this section pressure difference value, so energy consumption reduces greatly.
Mechanical efficiency because of hydraulic system 2 is higher than connecting rod again, so power of motor reduces significantly.
But there is the shortcoming of gas and hydraulic fluid leak in the motion sealing configuration place of piston in the to-and-fro motion process.In addition, the expansive force that is compressed gas passes through piston action on hydraulic system, hydraulic system is not had influence basically, so compressor can start directly at any time.For the air demand of keeping compressed natural gas and the balance of compressing output quantity, still to dispose pressure-stored tank.
3) hydraulic compressed natural gas aerator
Its basic functional principle is to utilize hydraulic oil to be working medium; It directly injects high pressure oil in jar bottle with high pressure oil pump, does not have cylinder and piston, and working stroke is big; Can both apply maximum compression thrust to being compressed gas in the total travel in the gas holder bottle, the conversion efficiency of kinetic energy is higher.
Technical characteristics: technological process is simple, saves cylinder and piston in the structure, has overcome leakage, and compression process is very steady, utilizes the overbottom pressure of gas in the gas cylinder to carry out oil return.Saved special-purpose pressure-stored tank; Structure is more simple.
But, to sell in the activity at the defeated of rock gas, natural gas transportation tank car and compressor or compression set are two-part separate equipment separately.The hydraulic compressed natural gas aerator does not have compression cylinder working portion (compressed tanks) in the substation, have only oil hydraulic pump, fuel tank, and instrument air, control device grades, can not complete system of Cheng Qiwei, it can not work alone.
The natural gas transportation tank car be one by a plurality of high-pressure natural gas gas holder bottles 2 with partly pull bearing chassis 1 (like Fig. 3) and special-purpose vehicle that towing motorcar is formed.Its main function is a transport natural gas.
But the compress mode of hydraulic compressed natural gas aerator but will be utilized the important process part (make compressed tanks use) of the high-pressure natural gas gas holder bottle 2 of natural gas transportation tank car as compression set.Therefore, just must carry out corresponding transformation to common natural gas transportation tank car: one increases atmospheric control and the pneumatic valve that automaticallyes switch between each gas cylinder; Two increase the control pipeline of two high pressure oil input pipelines and joint and switch valve etc. on the basis of having only a rock gas output high pressure pipe line originally; The compress mode of three hydraulic compressed natural gas aerators has specific requirement to the operating attitude of high-pressure natural gas storage tank bottle, when oiling is pressurizeed must be oil 3 in the therapeutic method to keep the adverse qi flowing downward last, so high-pressure natural gas gas holder bottle 2 must be vertically or the attitude that tilts.Realize this purpose, partly the pulling of natural gas transportation tank car must be added the startup support of lying on the back of a cover hydraulic lift on the bearing chassis.
See that from technological process process is very simple.But in fact one everybody can both be general the natural gas transportation tank car become extraordinary special-purpose tank car, and oil pump, fuel tank instrument, source of the gas and the control section etc. that are in the substation separately, become incomplete system.In case having left this extraordinary special-purpose tank car air entraining substation just can not work.
To handle how and utilize the source of the gas rock gas pressure can problem on; Because structure is decided; The air cylinder that hydraulic system is pressed into extraordinary natural gas transportation tank car with hydraulic oil to natural gas boosting after; Hydraulic oil in the bottle relies on the pressure of source of the gas rock gas can its pressure be pushed back in the normal pressure fuel tank, and the pressure of unnecessary rock gas can be put by sky basically.And in this process, also take the part rock gas out of and be released in the atmosphere, caused certain safety and environmental problem.Connect noted earlierly, on the fuel tank of normal pressure float type level gauge is housed, it is exactly to be used for the controlling component of controlled hydraulic system to the oil-feed quantity of natural gas boosting.But it can only be operated under the condition of normal pressure.Therefore the high pressure oil pump 4 of hydraulic system can only suck the hydraulic oil of normal pressure, is forced into high pressure and accomplishes supercharging work.The pressure of source of the gas rock gas can only have been done the utilization of part.
The three by contrast, aforesaid crank-connecting rod piston compressor and hydraulic piston type natural gas compressor are the source of the gas transport vehicle by common natural gas transportation tank car, the investment of building a station economizes, but energy consumption is higher.The hydraulic compressed natural gas aerator then needs extraordinary special-purpose natural gas transportation tank car, and it is higher that energy consumption reduces the investment of building a station.
Summary of the invention:
The purpose of this invention is to provide a kind of can with common natural gas transportation tank car mating operation, do not use the closed oily piston rock gas substation compressor of mechanical piston and cylinder again.It utilizes the liquid level of hydraulic oil in the gas compression jar go up and down to replace mechanical piston, utilizes the pressure of high density rock gas air inlet can in the gas compression jar, alternately carry out the supercharging that endless form that air inlet, compression, high pressure gas switch again accomplishes rock gas with the driving kinetic energy of hydraulic system and compresses.
The objective of the invention is to realize like this: design a kind of closed oily piston rock gas substation compressor; At the other inlet valve that is equipped with of the inlet of inlet ductwork; At the other outlet valve that is equipped with of the outlet of export pipeline; Its key is: be provided with pressure transducer at the back at inlet valve, connect pressure oil tank and bridge-type valve group respectively through three-way pipe on the inlet ductwork at this pressure transducer rear, on the diagonal of the inlet ductwork of this bridge-type valve group, export pipeline is set; On this export pipeline, high-pressure gas cylinder is installed, between this outlet three-way pipe and bridge-type valve group, is provided with pressure relay through three-way pipe; Right jar of gas compression cylinder, gas compression cylinder left side jar are housed respectively on another diagonal of said bridge-type valve group; The bottom of these two gas compression cylinder jars is communicated with the bottom of pressure oil tank through electro-hydraulic reversing valve, flow transducer and high pressure oil pump successively, forms the closed circulation loop; Right jar of said gas compression cylinder, a gas compression cylinder left side jar formation gas compression cylinder jar group.Between the jet of said high pressure oil pump and pressure oil tank bottom, also be provided with an arm, on this arm, pressure controlled valve be housed; The specific pressure fuel tank position, position of right jar of said gas compression cylinder, a gas compression cylinder left side jar is high, and under the hydrostatic pressure condition, the high liquid level (HLL) of the minimum level of right jar of gas compression cylinder and gas compression cylinder left side jar and pressure oil tank is on same horizontal plane; The pressure signal that oil mass signal that said flow transducer records and pressure transducer record imports automatic control system simultaneously into, sends to electro-hydraulic reversing valve after treatment, and this electro-hydraulic reversing valve receives the switching of jar about command control gas compression cylinder.The oil inlet quantity of each compression stroke is accomplished through electro-hydraulic reversing valve by the flow transducer control unit with switching frequency alternately.The pressure signal that said pressure relay records is passed to automatic control system, is started by automatic control system instruction high pressure oil pump, pumps high pressure oil.
The present invention utilizes the pressure ability of source of the gas rock gas air inlet, saves power.The structure of its compressor by the requirement of Pascal's law with high pressure oil pump, fuel tank and the gas compression cylinder of hydraulic pressure installation about jar, bridge-type valve group etc. advance and go out to be connected together to form the circulation loop of sealing.The pressure of rock gas air inlet can act directly in the circulation loop.Everywhere equalization of pressure is in the pressure of rock gas air inlet under hydrostatic pressure condition.When being reduced to the high-voltage value that sets to the natural pressure that gets into if desired; Only need the energy between the pressure reduction of high pressure oil pump pressurization supplemental natural gas compression front and back; And no longer need high pressure oil pump that hydraulic oil is raised to the required high pressure of exhaust from normal pressure; Therefore can reduce the energy consumption of motor greatly, noise and temperature rise all are reduced thereupon.
The present invention raises the mounting point of gas compression cylinder jar group; The at that makes gas compression cylinder jar group is in the position with respect to pressure oil tank top; Compressor is before work; Earlier to about the gas compression cylinder jar and pressure oil tank adding hydraulic oil; Will guarantee that the liquid level of horizontal liquid level in gas compression cylinder jar is the minimum working position of gas compression cylinder jar after adding hydraulic oil, the liquid level in pressure oil tank is the extreme higher position of pressure oil tank, and the high liquid level (HLL) of the minimum level of right jar of gas compression cylinder and gas compression cylinder left side jar and pressure oil tank is on same horizontal plane.Other hydraulic parts for example, high pressure oil pump, flow transducer, electro-hydraulic reversing valve, pressure controlled valve etc. all soak to wash one's hair and are operated under the horizontal hydraulic pressure pasta.When the pressure of rock gas air inlet when pipeline gets into, under hydrostatic pressure condition, equalization of pressure everywhere is in the pressure of rock gas air inlet.
At this moment the both sides at the advancing of high pressure oil pump, oil drain out place, pressure equates.If when being reduced to the force value that high pressure gas sets to natural pressure; Only need the energy between the pressure reduction before and after the compression of high pressure oil pump pressurization supplemental natural gas, and no longer need high pressure oil pump with hydraulic oil from normal pressure (barometric pressure) voltage rise to the required high pressure of exhaust.Therefore can reduce the energy consumption of motor greatly, illustrate:, need behind 20 MPa, to export through compressor boost if the bleed pressure of rock gas is 18 MPa.Pressure difference value between before and after them has only 2 MPa.Must overcome the immense pressure that acts on 18 MPa on its piston by conventional in the past way compressor and could pressure be increased to 20 MPa; Because the pressure of the piston the other end is the condition that is in a barometric pressure 0.1MPa, so the kinetic energy that need pay is very big.But adopt the present invention only need carry out the power output of supercharging 2 MPa, saving power greatly.
In the compression process of reality; Because the gas pressure of source of the gas is not invariable; The present invention is provided with air inlet pressure sensor in the inlet of source of the gas especially; The pressure signal that it will record at random feeds back to the compression automatic control system, and the compression automatic control system is adjusted the oil inlet quantity (stroke of oily piston) of compression and the frequency that two row gas compression jar work are switched immediately, with normal output and the rational working power of guaranteeing compressor.
Said bridge-type valve group is made up of four one-way valves, and wherein two one-way valve opening ends near inlet ductwork are oppositely arranged, and is oppositely arranged near two one-way valve non-return ends of export pipeline.Adopt this structure to make high pressure gas and utilize the pressure of source of the gas rock gas to accomplish through a bridge-type valve group to gas compression cylinder canister incoming gas (being equivalent to the air-breathing of piston compressor).When the pressure of the high density rock gas of source of the gas can satisfy direct filling condition, bridge-type valve group can let it directly through getting into aerating weighing machine.Equally, the rock gas after supercharging of the present invention also can let its storage press the back to get into the aerating weighing machine.Otherwise the pressure of source of the gas rock gas descends or bridge-type valve group on the low side is just moved the air inlet that it transfers compressor to.
Said electro-hydraulic reversing valve is selected three-position four-way valve for use, and wherein the bottom of right jar of gas compression cylinder is communicated with the pressure oil tank bottom through the passage that a pipeline passes electro-hydraulic reversing valve, and jar flows back in the pressure oil tank through the gas compression cylinder right side to make hydraulic oil after the supercharging.
The present invention is provided with air inlet pressure sensor in the inlet of source of the gas; The pressure signal that it will record at random feeds back to the compression automatic control system, and the compression automatic control system is adjusted the oil inlet quantity (stroke of oily piston) of compression and the frequency that two row gas compression jar work are switched immediately.
The present invention is provided with oil-supplementing system in the bottom of said pressure oil tank, after the oil in the fuel tank reduces, can in time replenish.
The present invention is equipped with pneumatic filter on the inlet ductwork of pressure transducer and pressure oil tank, make the oil that gets in the circulation loop clean.On the inlet ductwork between pneumatic filter and the bridge-type valve group, be provided with pressure gauge, be convenient to observe at any time the gas pressure that gets into gas compression cylinder jar.
The present invention is provided with safety check between said flow transducer and high pressure oil pump, the non-return end of this safety check is in order to prevent that pressurization gas from driving in the wrong direction towards flow transducer.
The most significant advantage of the present invention is: do not need supporting extraordinary natural gas transportation tank car, with aforesaid crank-connecting rod piston compressor, the same supporting common natural gas transportation tank car of hydraulic piston type natural gas compressor.
The present invention utilizes the pressure ability of the rock gas of supporting transportation tank car fully, saves power; Circuit supercharging working method in enclosed is isolated with surrounding environment, and not free rock gas overflows, and on basic structure, has just guaranteed safety and environmental protection.
The present invention utilizes the liquid level of hydraulic oil in gas compression cylinder jar group go up and down to replace mechanical piston, utilizes the pressure of source of the gas rock gas air inlet can in the gas compression jar, alternately carry out the supercharging that endless form that air inlet, compression, high pressure gas switch again accomplishes rock gas with the driving kinetic energy of hydraulic system and compresses.Because of there not being mechanical piston not have Sealing not have relative mechanical motion, therefore also not having mechanical friction, the leakage rate of gas is zero, and the mechanical efficiency of compressor improves greatly.
In addition; The cylinder diameter of section of compressed tanks is much larger than the diameter of conventional compressor; Therefore the gait of march of oily piston is sedate and even, and the heat that produces in the gas compression processes has the sufficient time to discharge, and can not produce gathering in the short time; The temperature rise of compressor casing is slow, can use the radiation system of various ways.
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Description of drawings:
Fig. 1 is the structural representation of crank-connecting rod piston compressor in the existing technology.
Fig. 2 is a hydraulic piston type natural gas compressor structural representation in the existing technology.
Fig. 3 is the structural representation of hydraulic compressed natural gas aerator in the existing technology.
Structural representation when Fig. 4 is the present invention's static state.
Fig. 5 is the structural representation of the present invention when dynamic.
Embodiment:
Please see Fig. 4, Fig. 5; This embodiment has described a kind of closed oily piston rock gas substation compressor, is made up of high pressure oil pump 1, pressure controlled valve 2, pressure oil tank 3, liquid selector valve 4, flow transducer 5, bridge-type valve group 6, right jar 7 in gas compression cylinder, gas compression cylinder left side jar 8, pressure transducer 9, pressure relay 10, high-pressure gas cylinder 11, automatic control system 12, oil-supplementing system worker 13, inlet valve 14, outlet valve 15, safety check 16 and pressure gauge.Wherein at the other inlet valve 14 that is equipped with of the inlet of inlet ductwork, at the other outlet valve 15 that is equipped with of the outlet of export pipeline.Be provided with pressure transducer 9 in said inlet valve 14 back; Connect pressure oil tank 3 and bridge-type valve group 6 respectively through three-way pipe on the inlet ductwork at these pressure transducer 9 rears; Said bridge-type valve group 6 is made up of four one-way valves; Wherein two one-way valve opening ends near inlet ductwork are oppositely arranged, and are oppositely arranged near two one-way valve non-return ends of export pipeline.On the diagonal of the inlet ductwork of this bridge-type valve group 6, export pipeline is set, on this export pipeline, high-pressure gas cylinder 11 is installed, between this outlet three-way pipe and bridge-type valve group 6, be provided with pressure relay 10 through three-way pipe; Gas compression cylinder right side jar 7, gas compression cylinder left side jar 8 are housed respectively on another diagonal of said bridge-type valve group 6; The bottom of these two gas compression cylinder jars is communicated with the bottom of pressure oil tank 3 through electro-hydraulic reversing valve 4, flow transducer 5 and high pressure oil pump 1 successively; Wherein the bottom of the right jar 7 of gas compression cylinder is communicated with pressure oil tank 3 bottoms through the passage that a pipeline passes electro-hydraulic reversing valve 4, forms the closed circulation loop; Electro-hydraulic reversing valve 4 is selected three-position four-way valve for use.Between the jet of said high pressure oil pump 1 and pressure oil tank 3 bottoms, also be provided with an arm, pressure controlled valve 2 is housed on this arm; Between said flow transducer 5 and high pressure oil pump 1, be provided with safety check, the non-return end of this safety check is towards flow transducer 5.Right jar 7 in said gas compression cylinder, jar specific pressure fuel tank 3 positions, 8 position, a gas compression cylinder left side are high, and under the hydrostatic pressure condition, the high liquid level (HLL) of the minimum level on right jar 7 in gas compression cylinder and a gas compression cylinder left side jars 8 and pressure oil tank 3 is on same horizontal plane; Be provided with oil-supplementing system 13 in the bottom of said pressure oil tank 3, in time give pressure oil tank supplementary pressure oil.The pressure signal that oil mass signal that said flow transducer 5 records and pressure transducer 9 record imports automatic control system 12 simultaneously into, sends to electro-hydraulic reversing valve 4 after treatment, and this electro-hydraulic reversing valve 4 receives the switching of jar about the control gaseous compression cylinder of instruction back.Said pressure relay 10 is passed to automatic control system 12 with the pressure signal that records, and is started by automatic control system 12 instruction high pressure oil pumps 1, pumps high pressure oil.
In order to make the gas that gets into circulation loop clean, on the inlet ductwork of pressure transducer 9 and pressure oil tank 3, pneumatic filter is housed, in order to detect the air pressure that gets into bridge-type valve group 6, on the inlet ductwork between pneumatic filter and the bridge-type valve group 6, be provided with pressure gauge.Press in order to detect implication, between high-pressure gas cylinder 11 and outlet valve 15, be provided with pressure gauge, be convenient to the detection at any time outlet pressure.
Compressor of the present invention is work like this: source of the gas--the natural gas transportation tank car is connected compressor inlet with high pressure hose, and this moment, compressor was that static state is not started shooting, and was in atmospheric pressure state in the machine.When opening the valve rock gas through pneumatic filter, get into three-way pipeline one end and get into pressure oil tank 3 downwards, the other end gets into bridge-type valve group 6, backs down whole one-way valves of bridge-type valve group 6, and one the tunnel gets into high-pressure gas cylinders 11 back storages through pressure relay 10 presses and waits to send out.Pressure relay 10 is also higher because of the pressure of rock gas, meets the setting of 20 MPa force value, does not start compressor.At the two-way gas in addition of 6 li of bridge-type valve groups, also enter into right jar 7 in gas compression cylinder, jar 8 the insides, a gas compression cylinder left side simultaneously, state as shown in Figure 4, i.e. pressure balance.
When high-pressure gas cylinder 11 because of outwards gas transmission; The setting value that decline (annotate: the gas storage pressure that comprises the natural gas transportation tank car descends) is lower than pressure relay 10 appears in gas pressure; The pressurization system of compressor hydraulic pressure starts, and automatic control system 12 instruction high pressure oil pumps 1 are seen high pressure oil through flow transducer 5 off and passed through electro-hydraulic reversing valve 4 again, get into arbitrary gas compression cylinder jar; In jar along with the increase of the volume of hydraulic oil; Gas is compressed increased pressure, and the gas that at this moment obtains high pressure moves to high-pressure gas cylinder 11, and the gas of high pressure has barred up the one-way valve that leads to low pressure through bridge-type valve group 6 time; The gas of high pressure can only enter in the high-pressure gas cylinder 11, and is as shown in Figure 5.
Here; The volume flowrate of the high pressure oil that high pressure oil pump 1 is sent to gas compression cylinder jar 7 and 8; The stroke that is equivalent to piston in the piston compressor; The stroke of this " oily piston " is adjustable, and it is a high pressure oil mass of adjusting entering according to the situation of variation in pressure gradually, and promptly the length of " oily piston " stroke adapts to the variation of pressure.Compression stroke was short when pressure was higher; Compression stroke just extended when pressure was low.Flow transducer 5 adds that with the oil mass signal that records the pressure signal that the pressure transducer 9 of compressor inlet records imports control system 12 simultaneously into; Send about the control gaseous compression cylinder a jar instruction of switching after treatment, let gas pressures in the high-pressure gas cylinder 11 of compressor remain the state of output value.High pressure oil pump 1 self delivery pressure value is by pressure regulator valve 2 adjustment.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. closed oily piston rock gas substation compressor; At the other inlet valve (14) that is equipped with of the inlet of inlet ductwork; At the other outlet valve (15) that is equipped with of the outlet of export pipeline; It is characterized in that: be provided with pressure transducer (9) in said inlet valve (14) back, connect pressure oil tank (3) and bridge-type valve group (6) respectively through three-way pipe on the inlet ductwork at this pressure transducer (9) rear, on the diagonal of the inlet ductwork of this bridge-type valve group (6), export pipeline is set; On this export pipeline, high-pressure gas cylinder (11) is installed, between this outlet three-way pipe and bridge-type valve group (6), is provided with pressure relay (10) through three-way pipe; Gas compression cylinder right jar (7), a gas compression cylinder left side jar (8) are housed respectively on another diagonal of said bridge-type valve group (6); The bottom of these two gas compression cylinder jars is communicated with the bottom of pressure oil tank (3) through electro-hydraulic reversing valve (4), flow transducer (5) and high pressure oil pump (1) successively; Wherein the bottom of gas compression cylinder right jar (7) is communicated with pressure oil tank (3) bottom through the passage that a pipeline passes electro-hydraulic reversing valve (4), forms the closed circulation loop; Between the jet of said high pressure oil pump (1) and pressure oil tank (3) bottom, also be provided with an arm, pressure controlled valve (2) is housed on this arm; Said gas compression cylinder right jar (7), a gas compression cylinder left side jar (8) position specific pressure fuel tank (3) position height; Under the hydrostatic pressure condition, the high liquid level (HLL) of the minimum level of gas compression cylinder right jar (7) and gas compression cylinder left side jar (8) and pressure oil tank (3) is on same horizontal plane; The pressure signal that oil mass signal that said flow transducer (5) records and pressure transducer (9) record imports automatic control system (12) simultaneously into; Send to electro-hydraulic reversing valve (4) after treatment, this electro-hydraulic reversing valve (4) receives the switching of jar about command control gas compression cylinder; The pressure signal that said pressure relay (10) records is passed to automatic control system (12), is started by automatic control system (12) instruction high pressure oil pump (1), pumps high pressure oil.
2. closed oily piston rock gas according to claim 1 substation compressor; It is characterized in that: said bridge-type valve group (6) is made up of four one-way valves; Wherein two one-way valve opening ends near inlet ductwork are oppositely arranged, and are oppositely arranged near two one-way valve non-return ends of export pipeline.
3. closed oily piston rock gas according to claim 1 substation compressor, it is characterized in that: said electro-hydraulic reversing valve (4) is selected three-position four-way valve for use.
4. closed oily piston rock gas according to claim 1 substation compressor is characterized in that: be provided with oil-supplementing system (13) in the bottom of said pressure oil tank (3).
5. closed oily piston rock gas according to claim 1 substation compressor; It is characterized in that: on the inlet ductwork of pressure transducer (9) and pressure oil tank (3) pneumatic filter is housed, the inlet ductwork between this pneumatic filter and the bridge-type valve group (6) is provided with pressure gauge.
6. closed oily piston rock gas according to claim 1 substation compressor, it is characterized in that: between said flow transducer (5) and high pressure oil pump (1), be provided with safety check, the non-return end of this safety check is towards flow transducer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120321086XU CN202250677U (en) | 2011-08-30 | 2011-08-30 | Closed oil piston natural gas substation compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120321086XU CN202250677U (en) | 2011-08-30 | 2011-08-30 | Closed oil piston natural gas substation compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250677U true CN202250677U (en) | 2012-05-30 |
Family
ID=46111929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120321086XU Expired - Lifetime CN202250677U (en) | 2011-08-30 | 2011-08-30 | Closed oil piston natural gas substation compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322413A (en) * | 2011-08-30 | 2012-01-18 | 重庆耐德燃气设备有限公司 | Hydraulic oil piston type natural gas sub-station compressor |
| CN103807603A (en) * | 2014-02-21 | 2014-05-21 | 青岛东燃燃气设备有限公司 | Natural gas substation compressor pipeline connecting structure and new natural gas compressing technology |
-
2011
- 2011-08-30 CN CN201120321086XU patent/CN202250677U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322413A (en) * | 2011-08-30 | 2012-01-18 | 重庆耐德燃气设备有限公司 | Hydraulic oil piston type natural gas sub-station compressor |
| CN102322413B (en) * | 2011-08-30 | 2013-06-19 | 重庆耐德能源装备集成有限公司 | Hydraulic oil piston type natural gas sub-station compressor |
| CN103807603A (en) * | 2014-02-21 | 2014-05-21 | 青岛东燃燃气设备有限公司 | Natural gas substation compressor pipeline connecting structure and new natural gas compressing technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204493095U (en) | Hydraulic bidirectional effect pumping installations | |
| CN114144584B (en) | Electric liquid driven piston type hydrogen compressor and compression method | |
| CN102322413B (en) | Hydraulic oil piston type natural gas sub-station compressor | |
| CN201593488U (en) | Hydraulic piston type gas compressor for natural gas secondary filling stations | |
| CN203769811U (en) | Self-help supercharging system with hydraulic supercharger and upright columns for hydraulic support | |
| CN202900809U (en) | Quick high-pressure inflating system capable of recycling energy | |
| CN204458573U (en) | A kind of hydraulic system of electromagnetic priority valve durability test | |
| CN202250677U (en) | Closed oil piston natural gas substation compressor | |
| CN201250767Y (en) | Air-driven hydraulic pump | |
| CN113669333A (en) | Hydraulic upright post pressurization and acceleration loop and pressurization and acceleration method | |
| CN1112517A (en) | Controller for hand-operated hydraulic press | |
| CN205277959U (en) | Atmospheric pressure hydraulic pressure circulation driving system | |
| CN201573651U (en) | Gas-liquid supercharger-type roll-over control mechanism for railway self-dumping car | |
| CN201391429Y (en) | Liquid-vapor transmission gas compressor | |
| CN202441833U (en) | Double-effect double-stage gas-liquid supercharging transmission apparatus | |
| CN101875356A (en) | Gas-liquid pressure-boosting overturning control mechanism of railway automatic dumping car | |
| CN201461165U (en) | Pressure increasing and regulating lubricator of large-sized diesel engine fuel system | |
| CN209458210U (en) | The hydraulic commutation denoising device of natural gas compression equipment | |
| CN211008941U (en) | Clean energy air pressure water lifting power generation device | |
| CN202597010U (en) | Pneumatic liquid charge pump for coal mine | |
| CN207229487U (en) | A kind of multi link formula pneumatic vertical booster body | |
| CN202326059U (en) | Double-acting pressurizing gas-liquid composite pump | |
| CN101968066A (en) | Energy storage rapid discharger | |
| CN110778476A (en) | Liquid step-by-step pressurizing device | |
| CN110885068A (en) | Portable high-pressure nitrogen making machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130619 |
|
| RGAV | Abandon patent right to avoid regrant |