CN110206590A - A kind of free plunger expanding machine and hydraulic power generating unit - Google Patents
A kind of free plunger expanding machine and hydraulic power generating unit Download PDFInfo
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- CN110206590A CN110206590A CN201910431883.4A CN201910431883A CN110206590A CN 110206590 A CN110206590 A CN 110206590A CN 201910431883 A CN201910431883 A CN 201910431883A CN 110206590 A CN110206590 A CN 110206590A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B23/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01B23/08—Adaptations for driving, or combinations with, pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B25/00—Regulating, controlling, or safety means
- F01B25/02—Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity
- F01B25/08—Final actuators
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- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a kind of free plunger expanding machine and hydraulic power generating units, more particularly to expanding machine field, including multiple energy regeneratings and converting unit group and a generating set, multiple energy regeneratings and converting unit group output end are connect with generating set input terminal；The energy regenerating and converting unit group include hydraulic oil container, check valve, free plunger expansion cylinder one, free plunger expansion cylinder two, piston type hydraulic pumps, electromagnetism hydraulic control one-way valve group, safe valve group and accumulator, and the piston type hydraulic pumps both ends pass through flexible clutch respectively and connect with free plunger expansion cylinder one and free plunger expansion cylinder two；The hydraulic oil container, check valve, piston type hydraulic pumps, electromagnetism hydraulic control one-way valve group, safe valve group, accumulator, hydraulic motor have been interconnected to constitute hydraulic circuit by oil pipe.The implementation and popularization for the waste heat overbottom pressure energy recovery that there is the present invention preferable transformation efficiency, stability and economy to be conducive to.
Description
Technical field
The present invention relates to expanding machine technical fields, it is more particularly related to a kind of free plunger expanding machine and liquid
Pressure type generating set.
Background technique
According to " Energy Conservation Law of the People's Republic of China " first: in order to reinforce industrial energy saving management, perfecting industry section
Energy management system, constantly improve efficiency of energy utilization push green low-carbon cycle development, promote Ecological Civilization Construction；And it faces
Energy problem increasingly serious at present, international community are higher and higher for the attention degree of waste heat overbottom pressure energy recycling and reusing.
Expanding machine technology as the important ring in heating power energy recovery conversion links, transformation efficiency, stability and
Economic influence energy recovery recycle popularization and implementation.
The patent of patent application publication CN 104533604B discloses a kind of engine exhaust heat based on Piston Expander
Recovery system, the system include engine and a set of waste-heat recovery device based on Piston Expander.This system can recycle hair
Motivation exhaust and the waste heat in cooling water, are translated into mechanical energy via Organic Rankine Cycle.With existing residual neat recovering system
It compares, the method have the characteristics that Piston Expander and piston engine are integrated, the energy of residual neat recovering system recycling
The consumption that can be directly used for engine energy in exhaust process and compression process, due to without additional generator and other energy
Reforming unit, the transmitting loss of system self-energy is small, and has many advantages, such as that compact-sized, increase additional assemblies are few, has relatively broad
Application prospect.
But still there is more disadvantage in practice in above-mentioned technical proposal, the energy recycled such as residual neat recovering system
Amount is only used for the consumption of engine energy in exhaust process and compression process, and use scope is smaller.
The patent of patent application publication CN 103334795A discloses a kind of freedom using high pressure gas output electric energy
Stroke piston expanding machine power generator, which includes free travel Piston Expander, linear electric generator, electronic control unit ECU, whole
Flow device and electrical energy storage device；This device pushes two pistons in free piston expander by input high pressure gas, makes straight
Mover in line generator is reciprocating and cutting magnetic line directly exports electric energy.
But still there is more disadvantage in practice in above-mentioned technical proposal, such as directly pushed by high pressure gas
Piston motion makes linear electric generator export electric energy, can do work when only piston pushes, and when reply can not do work, and electric energy is defeated
Low efficiency out, and unstable instantaneous pressure and flow can be generated in the Piston Expander course of work.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiment of the present invention provides a kind of free plunger expanding machine and hydraulic
Formula generating set, by the way that two free plunger expansion cylinders are connected with a piston type hydraulic pumps using flexible clutch, and
Cooperate valve one, valve two, valve three and the valve four of electromagnetism hydraulic control one-way valve group to use, a combination thereof unlatching/closing is controlled, in line handspike
When doing primary reciprocating motion, expansion work twice is completed, realizes power generation twice, generating efficiency is high, and returns in hydraulic system
Lu Zhong, the setting of accumulator and safe valve group have the ability of buffering and absorption pressure pulsation, can balance free plunger expansion
The output ripple of machine stablizes hydraulic drive output in hydraulic circuit.
To achieve the above object, the invention provides the following technical scheme: a kind of free plunger expanding machine and hydraulic power generating
Unit, including multiple energy regeneratings and converting unit group and a generating set, multiple energy regeneratings and the output of converting unit group
End is connect with generating set input terminal；
The energy regenerating and converting unit group include hydraulic oil container, check valve, free plunger expansion cylinder one, free plunger
Expansion cylinder two, piston type hydraulic pumps, electromagnetism hydraulic control one-way valve group, safe valve group and accumulator, the piston type hydraulic pumps both ends
It is connect respectively by flexible clutch with free plunger expansion cylinder one and free plunger expansion cylinder two；
The hydraulic oil container, check valve, piston type hydraulic pumps, electromagnetism hydraulic control one-way valve group, safe valve group, accumulator, liquid
Pressure motor has been interconnected to constitute hydraulic circuit by oil pipe；
The electromagnetism hydraulic control one-way valve group includes valve one, valve two, valve three and valve four, and the free plunger expansion cylinder one connects
End passes through tee tube connection valve three and valve by tee tube connection valve one and valve two, free two connecting pin of plunger expansion cylinder
Four, the valve one, valve two, valve three connect high-pressure gas pipelines by pipeline respectively with valve four；
The generating set includes hydraulic motor and generator, and the hydraulic oil driving of the piston type hydraulic pumps output is hydraulic
Motor rotation, the hydraulic motor-driving generator power generation of rotation.
In a preferred embodiment, the piston type hydraulic pumps input terminal and output end pass through tee tube and oil
Pipe connection, and a pipeline on each tee tube is connect with oil pipe, is connected separately with check valve on other two pipeline.
In a preferred embodiment, the piston type hydraulic pumps are set as free plunger type expansion cylinder or piston type
Expansion cylinder.
In a preferred embodiment, it is all provided with inside the free plunger expansion cylinder one and free plunger expansion cylinder two
There is line handspike, two line handspikes are connect with flexible clutch respectively.
In a preferred embodiment, the oil pipe parallel connection that the oil pipe of the accumulator connection is connect with hydraulic motor connects
It connects, and safe valve group is set on the oil pipe of accumulator connection.
In a preferred embodiment, cooling storehouse and vacuum tank, the vacuum tank are equipped with inside the hydraulic oil container
It being set to cooling storehouse side and is connected with cooling storehouse, the corresponding hydraulic oil container outer wall of the cooling storehouse is equipped with hydraulic oil inlet,
The corresponding hydraulic oil container outer wall of the vacuum tank is equipped with hydraulic oil outlet.
In a preferred embodiment, it is equipped with cooling sandwith layer inside the corresponding hydraulic oil container of the cooling storehouse, it is described
Cooling sandwith layer is connected in the air-cooled radiator outside hydraulic oil container by pipeline.
In a preferred embodiment, high-pressure gas pipelines one end that the valve one is connected with two input terminal of valve is height
Gas feed is pressed, high-pressure gas pipelines one end that the valve three is connected with four output end of valve is high pressure gas outlet.
In a preferred embodiment, the energy regenerating and converting unit group connect external control with generating set
Device.
Technical effect and advantage of the invention:
It is 1, of the invention by being connected two free plunger expansion cylinders with a piston type hydraulic pumps using flexible clutch,
And cooperates valve one, valve two, valve three and the valve four of electromagnetism hydraulic control one-way valve group to use, a combination thereof unlatching/closing is controlled, in straight line
When push rod does primary reciprocating motion, expansion work twice is completed, realizes power generation twice, generating efficiency is high, and in hydraulic pressure system
It unites in circuit, the setting of accumulator and safe valve group has the ability of buffering and absorption pressure pulsation, can balance free plunger
The output ripple of expanding machine stablizes hydraulic system output；
2, the multiple energy regeneratings of peripheral control unit intelligent control and converting unit group carry out waste heat overbottom pressure source energy regenerating, so
Output power generation is carried out on a generating set afterwards, reduces the usage quantity of generator；Under special operation condition, such as inflammable
Explosive place, energy regenerating and converting unit group can transmit energy at a distance, and the generating set for guiding to harbor carries out
Power generation can be realized the waste heat waste heat recycling under special operation condition, the waste heat waste heat recycling range widened；The present invention can be used in
The expansion power generator of the overbottom pressure expansion power generations and organic rankine cycle system such as well opening natural gas power energy；
3, free plunger expansion cylinder is a kind of expanding machine of positive displacement, big with expansion ratio, and volumetric efficiency is high, structure letter
The advantages of list, small in size, low noise is stable, and contamination resistance is good, high conversion efficiency；Plunger type expansion cylinder is suitable for gas
The high-pressure fluid of liquid two-phase；
4, free plunger expansion cylinder handling ease, whole device need precision machined components few, and assembly is simple, later period dimension
Shield is convenient；
5, piston type hydraulic pumps are connect with free plunger expansion cylinder one and free plunger expansion cylinder two using flexible clutch,
Have the advantages that flexible connection and Flexible Transmission, reduces manufacture and the installation error of flexible clutch and line handspike, prevent from holding
The influence of variation and steady change after load；Furthermore hydraulicdriven component size is small, and power density is big, is easy to skid and sets
Meter, and can be reduced the occupied area of equipment；
6, the response of electromagnetism hydraulic control one-way valve group is fast, under the collective effect of sensor and peripheral control unit, easily realizes certainly
By the adjustment of the expansion ratio of plunger expanding machine, the pressure and flow for adapting to waste heat overbottom pressure source change, and improve recovery efficiency；This
Outside, expansion cylinder cooperation electromagnetism hydraulic control one-way valve group uses, and controls electromagnetism hydraulic control one-way valve group opening and closing time, can any flexibility change
Coefficient is compared in variable expansion；
7, a kind of free plunger expanding machine of the present invention and hydraulic power generating unit have preferable transformation efficiency, stability and
Economy, the implementation and popularization of the waste heat overbottom pressure energy recovery be conducive to.
Detailed description of the invention
Fig. 1 is energy regenerating of the invention and converting unit group and generator unit structure schematic diagram.
Fig. 2 is overall structure diagram of the invention.
Fig. 3 is hydraulic oil tank structure schematic diagram of the invention.
Appended drawing reference are as follows: 1 energy regenerating and converting unit group, 2 generating sets, 3 hydraulic oil containers, 4 check valves, 5 free columns
Fill in expansion cylinder one, 6 free plunger expansion cylinders two, 7 piston type hydraulic pumps, 8 electromagnetism hydraulic control one-way valve groups, 81 valves one, 82 valves two, 83
Valve three, 84 valves four, 9 safe valve groups, 10 accumulators, 11 high-pressure gas pipelines, 12 hydraulic motors, 13 generators, 14 flexible couplings
Device, 15 cooling storehouses, 16 vacuum tanks, 17 air-cooled radiators, 18 cooling sandwith layers.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of free plunger expanding machine and hydraulic power generating unit according to shown in Fig. 1-2, including multiple energy regeneratings and
Converting unit group 1 and a generating set 2, multiple energy regeneratings and 1 output end of converting unit group with 2 input terminal of generating set
Connection；
The energy regenerating and converting unit group 1 and generating set 2 connect peripheral control unit；
Embodiment specifically: under sensor and peripheral control unit collective effect the multiple energy regeneratings of intelligent control and turn
It changes unit group 1 and carries out waste heat overbottom pressure source energy regenerating, then carry out output power generation on a generating set 2, reduce power generation
The usage quantity of machine 13；
It can be transmitted at a distance under special operation condition, such as in inflammable and explosive place, energy regenerating and converting unit group 1
Energy, the generating set 2 for guiding to harbor generate electricity, and can be realized the waste heat waste heat recycling under special operation condition, widen
Waste heat waste heat recycle range.
As shown in Figure 1, the energy regenerating and converting unit group 1 include hydraulic oil container 3, check valve 4, the expansion of free plunger
Cylinder 1, free plunger expansion cylinder 26, piston type hydraulic pumps 7, electromagnetism hydraulic control one-way valve group 8, safe valve group 9 and accumulator 10,
7 both ends of piston type hydraulic pumps pass through flexible clutch 14 and free plunger expansion cylinder 1 and free plunger expansion cylinder respectively
26 connections；
Line handspike is equipped with inside the free plunger expansion cylinder 1 and free plunger expansion cylinder 26, two described straight
Line push rod is connect with flexible clutch 14 respectively；
Embodiment specifically: piston type hydraulic pumps 7 are adopted with free plunger expansion cylinder 1 and free plunger expansion cylinder 26
It is connected with flexible clutch 14, has the advantages that flexible connection and Flexible Transmission, reduce flexible clutch 14 and line handspike
Manufacture and installation error, the influence of variation and steady change after preventing carrying；Furthermore hydraulicdriven component size is small, function
Rate density is big, is easy to skidization design, and can be reduced the occupied area of equipment；
Free plunger expansion cylinder 1 and free 26 handling ease of plunger expansion cylinder, whole device need precision machined zero
Part is few, and assembly is simple, convenient later maintenance.
As shown in Figure 1, the piston type hydraulic pumps 7 are set as free plunger type expansion cylinder or piston type expansion cylinder；It is described
7 input terminal of piston type hydraulic pumps and output end pass through tee tube and connect with oil pipe, and on each tee tube a pipeline with
Oil pipe connects, and is connected separately with check valve 4 on other two pipeline, only a liquid stream is allowed to flow in one direction in pipeline, instead
Do not pass through to reflux, for piston type hydraulic pumps 7 with oil.
Embodiment specifically: this piston type hydraulic pumps 7 is a kind of energy conversion device that mechanical energy is switched to hydraulic energy.
As shown in Figure 1, the hydraulic oil container 3, check valve 4, piston type hydraulic pumps 7, electromagnetism hydraulic control one-way valve group 8, safety
Valve group 9, accumulator 10, hydraulic motor 12 have been interconnected to constitute hydraulic circuit by oil pipe；
The electromagnetism hydraulic control one-way valve group 8 includes valve 1, valve 2 82, valve 3 83 and valve 4 84, and the free plunger is swollen
By tee tube connection valve 1 and valve 2 82, free 26 connecting pin of plunger expansion cylinder passes through threeway for swollen one 5 connecting pin of cylinder
Pipe connection valve 3 83 and valve 4 84, the valve 1, valve 2 82, valve 3 83 connect high pressure gas by pipeline respectively with valve 4 84
Pipeline 11；
11 one end of high-pressure gas pipelines that the valve 1 is connected with 2 82 input terminal of valve is high pressure gas import, the valve
3 83 11 one end of high-pressure gas pipelines connected with 4 84 output end of valve are high pressure gas outlet；
The generating set 2 includes hydraulic motor 12 and generator 13, and the hydraulic oil that the hydraulic oil container 3 conveys drives liquid
Pressure motor 12 rotates, 12 driven generator 13 of the hydraulic motor power generation of rotation；
Embodiment specifically: in whole device energy regenerating power generation process, do primary complete function, will do it two steps
Stroke:
Wherein free plunger expansion cylinder and 7 forms of motion of piston type hydraulic pumps are reciprocating linear motion；
Hydraulic oil container 3 passes through oil pipe supply hydraulic fluid in whole process；
First stroke, the valve 2 82 and valve 3 83 for controlling electromagnetism hydraulic control one-way valve group 8 are opened, and electromagnetism hydraulic control one-way valve is controlled
The valve 1 and valve 4 84 of group 8 are closed, and high pressure gas gets enter into free column through the high pressure gas import of high-pressure gas pipelines 11
Expansion cylinder 1 is filled in, expansion work pushes piston type hydraulic pumps 7 to extrude hydraulic oil to the right, and pressure oil drives hydraulic motor 12 to rotate,
Driven generator 13 generates electricity the hydraulic motor 12 of rotation again；When free plunger expansion cylinder expansion work, the left room of piston type hydraulic pumps 7
From 3 oil suction of hydraulic oil container, and in free plunger expansion cylinder, gas is discharged and answers through the high pressure gas outlet of high-pressure gas pipelines 11
Position, for the it is two stroke prepare, so far complete the first stroke；
Second stroke, the valve 1 and valve 4 84 for controlling electromagnetism hydraulic control one-way valve group 8 are opened, and electromagnetism hydraulic control one-way valve is controlled
The valve 2 82 and valve 3 83 of group 8 are closed, and high pressure gas gets enter into free plunger expansion cylinder 26, and expansion workmanship pushes piston type
Hydraulic pump 7 extrudes hydraulic oil to the left, and pressure oil drives hydraulic motor 12 to rotate, the hydraulic motor 12 of rotation driven generator 13 again
Power generation；When free 26 expansion work of plunger expansion cylinder, 7 right ventricle of piston type hydraulic pumps is from 3 oil suction of hydraulic oil container, and free plunger
Gas is discharged and resets in expansion cylinder 1, prepares for subsequent work reciprocation cycle, so far completes the second stroke；
To complete expansion work twice when line handspike does primary reciprocating motion, power generation twice, power generation effect are realized
Rate is high.
And during power generation operation, the response of electromagnetism hydraulic control one-way valve group 8 is fast, in being total to for sensor and peripheral control unit
Under same-action, the adjustment of the expansion ratio of free plunger expanding machine is easily realized, the pressure and flow for adapting to waste heat overbottom pressure source change,
Improve recovery efficiency；In addition, expansion cylinder cooperation electromagnetism hydraulic control one-way valve group 8 uses, when control electromagnetism hydraulic control one-way valve group 8 opens and closes
Between, it can any flexible change expansion ratio coefficient.
As shown in Figure 1, the oil pipe that the oil pipe that the accumulator 10 connects is connect with hydraulic motor 12 is connected in parallel, and safety
Valve group 9 is set on the oil pipe of the connection of accumulator 10.
Embodiment specifically: the accumulator 10 in hydraulic circuit has the ability of buffering and absorption pressure pulsation,
The output ripple that free plunger expanding machine can be balanced stablizes hydraulic drive output in hydraulic circuit.
As shown in figure 3, being equipped with cooling storehouse 15 and vacuum tank 16 inside the hydraulic oil container 3, the vacuum tank 16 is set to
15 side of cooling storehouse and it is connected with cooling storehouse 15, corresponding 3 outer wall of hydraulic oil container of the cooling storehouse 15 is equipped with hydraulic oil inlet,
Corresponding 3 outer wall of hydraulic oil container of the vacuum tank 16 is equipped with hydraulic oil outlet；
Cooling sandwith layer 18 is equipped with inside the corresponding hydraulic oil container 3 of the cooling storehouse 15, the cooling sandwith layer 18 passes through pipeline
The electricity of generator output can be used in the air-cooled radiator 17 being connected in outside hydraulic oil container 3, air-cooled radiator；
Embodiment specifically: hydraulic oil container 3 plays output hydraulic pressure oil in entire hydraulic circuit and recycles hydraulic
The effect of oil, while the effects of also play heat dissipation, the air in oil and water separation, impurity, in hydraulic oil output through vacuum tank 16
The hydraulic oil of output, output is stablized, and the hydraulic oil of recycling, which enters in cooling storehouse 15, to be carried out cooling heat, subsequently into vacuum tank 16
Pressure stabilizing recycles again, and hydraulic oil is more stable in use, makes entire hydraulic system the operation is stable.
Working principle of the present invention:
Referring to Figure of description 1-3, when whole system works, the high pressure gas of recycling is input to through high-pressure gas pipelines 11
It in energy regenerating and converting unit group 1, is opened by control valve 2 82 and valve 3 83, control valve 1 and valve 4 84 are closed, high
Body of calming the anger gets enter into free plunger expansion cylinder 1, and expansion work pushes piston type hydraulic pumps 7 to extrude hydraulic oil, pressure to the right
Oil drives hydraulic motor 12 to rotate, and driven generator 13 generates electricity the hydraulic motor 12 of rotation again；Free plunger expansion cylinder expansion is done
When function, from 3 oil suction of hydraulic oil container, and in free plunger expansion cylinder, gas is discharged and resets the left room of piston type hydraulic pumps 7, then controls
Valve 1 and valve 4 84 processed are opened, and control valve 2 82 and valve 3 83 are closed, and high pressure gas gets enter into free plunger expansion cylinder two
6, similarly, expansion workmanship generates electricity；When free 26 expansion work of plunger expansion cylinder, 7 right ventricle of piston type hydraulic pumps is from hydraulic
3 oil suction of fuel tank, and gas is discharged and resets in free plunger expansion cylinder 1, prepares for subsequent work reciprocation cycle, thus
When line handspike does primary reciprocating motion, expansion work twice is completed, realizes power generation twice, generating efficiency is high.
The several points that should finally illustrate are: firstly, in the description of the present application, it should be noted that unless otherwise prescribed and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, can be mechanical connection or electrical connection, be also possible to two
Connection inside element, can be directly connected, and "upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when
The absolute position for being described object changes, then relative positional relationship may change；
Secondly: the present invention discloses in embodiment attached drawing, relates only to the structure being related to the embodiment of the present disclosure, other knots
Structure, which can refer to, to be commonly designed, and under not conflict situations, the same embodiment of the present invention and different embodiments be can be combined with each other；
Last: the foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, all in the present invention
Spirit and principle within, any modification, equivalent replacement, improvement and so on, should be included in protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of free plunger expanding machine and hydraulic power generating unit, it is characterised in that: single including multiple energy regeneratings and conversion
Tuple (1) and a generating set (2), multiple energy regeneratings and converting unit group (1) output end are inputted with generating set (2)
End connection；
The energy regenerating and converting unit group (1) include hydraulic oil container (3), check valve (4), free plunger expansion cylinder one (5),
Free plunger expansion cylinder two (6), piston type hydraulic pumps (7), electromagnetism hydraulic control one-way valve group (8), safe valve group (9) and accumulator
(10), piston type hydraulic pumps (7) both ends pass through flexible clutch (14) and free plunger expansion cylinder one (5) and freedom respectively
Plunger expansion cylinder two (6) connection；
The hydraulic oil container (3), check valve (4), piston type hydraulic pumps (7), electromagnetism hydraulic control one-way valve group (8), safe valve group
(9), accumulator (10), hydraulic motor (12) have been interconnected to constitute hydraulic circuit by oil pipe；
The electromagnetism hydraulic control one-way valve group (8) includes valve one (81), valve two (82), valve three (83) and valve four (84), the freedom
Plunger expansion cylinder one (5) connecting pin passes through tee tube connection valve one (81) and valve two (82), the free plunger expansion cylinder two (6)
Connecting pin passes through tee tube connection valve three (83) and valve four (84), the valve one (81), valve two (82), valve three (83) and valve four
(84) high-pressure gas pipelines (11) are connected by pipeline respectively；
The generating set (2) includes hydraulic motor (12) and generator (13), and the piston type hydraulic pumps (7) export hydraulic
Oil driving hydraulic motor (12) rotation, hydraulic motor (12) driven generator (13) power generation of rotation.
2. a kind of free plunger expanding machine according to claim 1 and hydraulic power generating unit, it is characterised in that: the work
Plunger type hydraulic pump (7) input terminal and output end pass through tee tube and connect with oil pipe, and on each tee tube a pipeline and
Oil pipe connects, and is connected separately with check valve (4) on other two pipeline.
3. a kind of free plunger expanding machine according to claim 1 and hydraulic power generating unit, it is characterised in that: the work
Plunger type hydraulic pump (7) is set as free plunger type expansion cylinder or piston type expansion cylinder.
4. a kind of free plunger expanding machine according to claim 1 and hydraulic power generating unit, it is characterised in that: it is described from
By being equipped with line handspike, two line handspike difference inside plunger expansion cylinder one (5) and free plunger expansion cylinder two (6)
It is connect with flexible clutch (14).
5. a kind of free plunger expanding machine according to claim 1 and hydraulic power generating unit, it is characterised in that: the storage
The oil pipe that the oil pipe that energy device (10) connects is connect with hydraulic motor (12) is connected in parallel, and safe valve group (9) is set to accumulator
(10) on the oil pipe connected.
6. a kind of free plunger expanding machine according to claim 1 and hydraulic power generating unit, it is characterised in that: the liquid
Be equipped with cooling storehouse (15) and vacuum tank (16) inside pressure oil case (3), the vacuum tank (16) be set to cooling storehouse (15) side and
It is connected with cooling storehouse (15), corresponding hydraulic oil container (3) outer wall of the cooling storehouse (15) is equipped with hydraulic oil inlet, the pressure stabilizing
Corresponding hydraulic oil container (3) outer wall of tank (16) is equipped with hydraulic oil outlet.
7. a kind of free plunger expanding machine according to claim 6 and hydraulic power generating unit, it is characterised in that: described cold
But cooling sandwith layer (18) are equipped with inside storehouse (15) corresponding hydraulic oil container (3), the cooling sandwith layer (18) is set by pipeline connection
It is placed in the external air-cooled radiator (17) of hydraulic oil container (3).
8. a kind of free plunger expanding machine according to claim 1 and hydraulic power generating unit, it is characterised in that: the valve
High-pressure gas pipelines (11) one end that one (81) are connected with valve two (82) input terminal be high pressure gas import, the valve three (83) and
High-pressure gas pipelines (11) one end of valve four (84) output end connection is high pressure gas outlet.
9. a kind of free plunger expanding machine according to claim 1 and hydraulic power generating unit, it is characterised in that: the energy
Amount recycling and converting unit group (1) and generating set (2) connect peripheral control unit.
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| CN201910431883.4A CN110206590A (en) | 2019-05-23 | 2019-05-23 | A kind of free plunger expanding machine and hydraulic power generating unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431883.4A CN110206590A (en) | 2019-05-23 | 2019-05-23 | A kind of free plunger expanding machine and hydraulic power generating unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153867A (en) * | 2021-01-12 | 2021-07-23 | 重庆科技学院 | Free piston expansion type hydraulic power output system with counterweight mechanism |
| CN113530605A (en) * | 2021-08-13 | 2021-10-22 | 四川道唯乐科技有限责任公司 | System and method for utilizing pressure energy of natural gas wellhead |
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| CN113530605A (en) * | 2021-08-13 | 2021-10-22 | 四川道唯乐科技有限责任公司 | System and method for utilizing pressure energy of natural gas wellhead |
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