CN110185598A - Booster pump built in a kind of automobile-used cryogenic natural gas bottle - Google Patents
Booster pump built in a kind of automobile-used cryogenic natural gas bottle Download PDFInfo
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- CN110185598A CN110185598A CN201910548182.9A CN201910548182A CN110185598A CN 110185598 A CN110185598 A CN 110185598A CN 201910548182 A CN201910548182 A CN 201910548182A CN 110185598 A CN110185598 A CN 110185598A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000003345 natural gas Substances 0.000 title claims abstract description 39
- 238000007906 compression Methods 0.000 claims abstract description 51
- 230000006835 compression Effects 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 26
- 239000003921 oil Substances 0.000 claims description 26
- 239000002826 coolant Substances 0.000 claims description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 3
- 238000002309 gasification Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003949 liquefied natural gas Substances 0.000 description 27
- 238000007789 sealing Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 240000000298 Elaeagnus multiflora Species 0.000 description 1
- 241000227287 Elliottia pyroliflora Species 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses booster pumps built in a kind of automobile-used cryogenic natural gas bottle, are related to natural gas bottle technical field, including hydraulic cylinder, cooling sap cavity, counter balance pocket, compression cylinder, piston rod, filter.The external gasifier of conventional vehicle-mounted LNG gas cylinder and booster can be replaced.The present invention is used as the power drive pressurization pump work by onboard hydraulic system, and booster pump is arranged gasification installation, the LNG in automobile-used low temperature cylinder is discharged and is gasified is forced into 34.5Mpa, and maintenance high pressure high density form of natural gas is reliable and stable.
Description
Technical field
The present invention relates to automotive natural gas bottle technical fields, more particularly, to pressurization built in a kind of automobile-used cryogenic natural gas bottle
Pump.
Background technique
High pressure high density natural gas is that high-powered engine can compare favourably as fuel with diesel engine performance, is obtained
More powerful power and the clean energy resource for realizing energy-saving and emission-reduction.As the issuing and implementation of six standard of state and national energy conservation and emission reduction are fought
It slightly requires, efficient high pressure high density natural gas will welcome more extensive market prospects.It is widely used in heavy truck, city
The fields such as city's public transport, peculiar to vessel, power generation, engineering machinery.It must have a set of reliable and stable high-pressure natural gas feed system thus,
The mounted temperature gas cylinder supervened is stored using liquefied natural gas as fuel, high in order to form 34.5Mpa (5000psig)
High density natural gas is pressed, but generallys use the outer supercharging technology of bottle at present, there are certain technological deficiencies.Increase although also having in bottle
Pressure technology is still very immature to be only in theoretical research stage, and apart from practical application, there is also many technology barriers, especially
It is the pressure of supercharging technology in current bottle well below 34.5Mpa actually required.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention, provides booster pump built in a kind of automobile-used cryogenic natural gas bottle, Neng Gouqu
The external gasifier of the generation vehicle-mounted LNG gas cylinder of routine and booster.In view of conventional LNG gas cylinder gasification boosting, there are insufficient pressure and shakinesses
Fixed defect, this product configure dynamical system by onboard hydraulic system as the power drive pressurization pump work, are pressurized the pump housing
Gasification installation is set, the LNG in automobile-used low temperature cylinder be discharged and is gasified is forced into 34.5Mpa, maintenance high pressure high density is natural
Gas form stable is reliable.
To achieve the goals above, the present invention adopts the following technical scheme: a kind of built-in pressurization of automobile-used cryogenic natural gas bottle
Pump, which is characterized in that successively include:
Hydraulic cylinder, the hydraulic cylinder are provided with the first hydraulic oil inlet and outlet and the second hydraulic oil inlet and outlet, can be with
Automobile hydraulic system is connected to, and is provided with oil cylinder piston in the hydraulic cylinder；
Cooling sap cavity, the cooling sap cavity are connected to cooling system of vehicle, coil pipe are arranged inside；
Counter balance pocket is provided with intercommunicating pore and is connected to outside；
Compression cylinder, is provided with compression the cylinder piston, and the compression cylinder is additionally provided with feed liquor check valve and out liquid check valve, institute
That states goes out between liquid check valve and the coil pipe by pipeline connection；
Piston rod is fixedly installed described through the hydraulic cylinder, cooling sap cavity, counter balance pocket and compression cylinder, one end
Oil cylinder piston, the other end is provided with the compression the cylinder piston；
Feed liquor check valve is provided between filter, with the compression cylinder.
Preferably, metal bellows is provided between the filter and the compression cylinder.
Preferably, natural gas seal assembly, Neng Goumi are provided between the hydraulic cylinder and the cooling sap cavity
The envelope hydraulic cylinder and the cooling sap cavity, and the two can be made to be fixedly connected.
Preferably, it is provided with low temperature seal component between the counter balance pocket and the compression cylinder, can seal described
Counter balance pocket and the compression cylinder, and both can make to be fixedly connected.
It preferably, further include distributor, the distributor can be gathered, distribution circuit is moved towards, and integrate natural gas gas
With the input and output of coolant system, realize natural gas bottle in bottle Outer Tube, pipe fitting linkage function；And integrated correlate meter
The connectivity port of valve, detecting element.
Performance advantage:
Compression cylinder pressurising medium of the present invention be LNG NG, pressure P=34.5Mpa, compress the frequency=50 beat/min.It is hydraulic
Oil cylinder medium is hydraulic oil, pressure 15Mpa.40 DEG C of gasifier gasification temperature.Conventional vehicle-mounted LNG gas cylinder gasifier and booster,
Belong to gasification and boost its course of work by ambient temperature, the influence of environment, supply gas pressure 1.0Mpa, the system failure is more, difficult
It, can not be by natural gas compressing to high pressure form to ensure the stabilization of supply gas pressure.The present invention accesses power device and passes through vehicle-mounted liquid
Pressure station is used as power, and the booster pump inner piston is driven to move back and forth, and output pressure reaches 34.5Mpa, passes through intelligent automation control
System maintains pressure to stablize, and eliminates the influence of environment, temperature to gas pressure.Water-bath gasifier is different from traditional LNG gas cylinder gas
Change device setting is sleeved on the pressurization pump housing and can be integrated with the pump housing, and light structure simplifies less occupied space, reduces entirety
Outer dimension reinforces pump housing intensity simultaneously, and engine-cooling system access coolant liquid circulation pipe carries out LNG by the device
Heat exchange, recycles the heat of engine, improves the gasification efficiency and efficiency of combustion of LNG, while heating to LNG gasification
Reduce engine temperature.Gasifier of the present invention and booster, which are built into, to be different from traditional external setting and makes air supply system in bottle
More reliability and safety remove traditional pressure piping and gasifier, simplify external structure, air supply system can be made more tight
It gathers, reduces entire space.It is different from traditional LNG gas cylinder gasification pressurization system, the present invention can provide more by external control system
For stable output pressure, the degree of automation is compared and is greatly improved.The booster pump can be realized the essence of consumption of the system to fuel
Quasi- control further lifting system can be precisely controlled performance by the distribution, metering, timing function of default, and then reduce
Fuel consumption.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is natural gas seal component architecture schematic diagram；
Fig. 3 is dispensing arrangement schematic diagram；
Fig. 4 is distributor schematic perspective view；
Fig. 5 is low temperature seal component and compression cylinder partial structure diagram；
Wherein, 1- hydraulic cylinder；11- oil cylinder piston；The first hydraulic oil of 12- inlet and outlet；The second hydraulic oil of 13- inlet and outlet；
2- piston rod；3- cools down sap cavity；4- compression cylinder；41- compresses the cylinder piston；411- high pressure piston expansion loop；42- goes out liquid check valve；
421- check valve steel ball；43- filter；44- metal bellows；45- feed liquor check valve；451- one-way valve spring；5- pipeline；
51- coil pipe；6- counter balance pocket；7- distributor；71- cooling liquid inlet；711- coolant liquid is into accent；72- cooling liquid outlet；721- is cold
But liquid goes out accent；73- natural gas gas outlet；74- natural gas goes out accent；75- oil and gas leakage detection mouth；The detection of 76- temperature, pressure
Mouthful；77- exhaust outlet；78- relief valve port；79- air outlet valve；8- natural gas seal assembly；81- oil and gas leakage detector；82- sealing
Axle sleeve gland；83- sealing ring；84- oil and gas leakage sense channel；The natural seal of 85-；9- low temperature seal component；911- high
Press accumulation of energy sealing ring.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As Figure 1-Figure 5, booster pump built in a kind of automobile-used cryogenic natural gas bottle, consists of the following components:
Hydraulic cylinder 1 is provided with the first hydraulic oil inlet and outlet 12 and the second hydraulic oil inlet and outlet 13 on hydraulic cylinder 1, can
It is connected to automobile hydraulic system, oil cylinder piston 11 is provided in hydraulic cylinder；
Cooling sap cavity 3, cooling sap cavity 3 are connected to cooling system of vehicle, coil pipe 51 are arranged inside；
Counter balance pocket 6 is provided with intercommunicating pore and is connected to outside；It is consistent with the gas pressure in the bottle to be able to maintain pressure in counter balance pocket 6.
Compression cylinder 4 is provided with compression the cylinder piston 41, and compression cylinder 4 is additionally provided with feed liquor check valve 45 and out liquid check valve 42,
It is connected between liquid check valve 42 and coil pipe 51 by pipeline 5 out；
Piston rod 2, through hydraulic cylinder 1, cooling sap cavity 3, counter balance pocket 6 and compression cylinder 4, one end is fixedly installed oil cylinder
Piston 11, the other end are provided with compression the cylinder piston 41；
Feed liquor check valve 45 is provided between filter 43, with compression cylinder 4.
Metal bellows 44 is provided between filter 43 and compression cylinder 4.
It is provided with natural gas seal assembly 8 between hydraulic cylinder 1 and cooling sap cavity 3, it being capable of sealed hydraulic oil cylinder and cooling
Sap cavity, and the two can be made to be fixedly connected.
Low temperature seal component 9 is provided between counter balance pocket 6 and compression cylinder 4, can sealing and balancing chamber and compression cylinder, and can make
The two is fixedly connected.
It further include distributor 7, distributor 7 can be gathered, distribution circuit is moved towards, and integrate natural gas gas and coolant system
Input and output, realize natural gas bottle in bottle Outer Tube, pipe fitting linkage function；And integrated correlate meter valve, detection member
The connectivity port of part.As shown in Figure 3 and Figure 4, be provided on distributor cooling liquid inlet 71, exhaust outlet 77, relief valve port 78 with
And four coolant liquids have channel connection into accent 711 between each other.There are also temperature, pressure detection mouths 76, oil and gas leakage detection mouth
75, cooling liquid outlet 72 and two natural gas gas outlets 73, cooling liquid outlet 72 and coolant liquid go out accent 721 and are connected by channel
Logical, natural gas gas outlet 73 goes out accent 74 with natural gas and is connected to by channel.Oil and gas leakage sense channel is provided in distributor 7
84 are connected to oil and gas leakage detection mouths 75, mountable oil and gas leakage detector 81 in mouth.
As shown in figure 5, liquid check valve 42 uses austenitic stainless steel out, it is mounted therein with check valve steel ball 421, using height
Precision hard alloy hardened steel ball forms linear sealing with conical seal (contact) face.Its surface grinding processing, it is ensured that No leakage under high pressure.
Feed liquor check valve 45 uses austenitic stainless steel, is mounted therein with one-way valve spring 451, using low temperature resistant material, guarantees high pressure
Long-term work under low-temperature condition acts 50 times/min of the frequency.High pressure piston expansion loop 411 is using the ultra low temperature hard for adding nickel alloy
Matter alloy expansion loop has higher toughness elasticity and intensity through heat treatment process such as precipitation-hardenings at low ambient temperatures.High pressure
Accumulation of energy sealing ring 911 is equipped with a corrosion resistant metal energy storage spring, is made of low temperature nickel alloy resistant material, Neng Gouti
For permanent elastic force, external is that tetrafluoride material is filled, and can realize effective sealing under high pressure by the way that spring force and system are hydraulic.
43 filtering accuracy 50um of filter, effectively prevent impurity to enter air supply system.Strainer is fixed using the double-deck skeleton, firm reliability
Height is effectively prevent because LNG stream is dynamic and bottle body vibration generates and loosens deformation.Metal bellows has shock-absorbing function, because of booster pump
Filter can be made to reach horizontality in oblique cutting bottle inlet, it is ensured that filter is in minimum liquid level.
Hydraulic cylinder is 45# steel, thermally treated, surface treatment and finish processing, oil cylinder volume=307ml, pressure=
15Mpa connects onboard hydraulic system, is passed through the generation variation of hydraulic cylinder internal volume and cylinder inner piston is pushed to move back and forth, real
Existing power-conversion.
Oil cylinder piston is 45# steel, and system hydraulic power can be converted to reciprocating motion by handling through finish, as this product
Power-conversion element.
Oil cylinder piston sealing element uses polytetrafluoro+copper powder, including guidance tape and sealing ring piston reciprocating to be oriented to, seal, is resistance to
Abrasion, anti-extrusion.
Oil cylinder reversal valve is 45# steel, is handled through finish, piston Endpoint buffer, pressure release.Has certain commutation capacity.Subtract
Few system causes to impact to the pump housing.
Piston rod material is special stainless steel material through subzero treatment, and cure process, finish, which is handled, can transmit power,
Dynamical element and executive component are connected, guarantees concentricity, has high intensity, it is wear-resisting, it is low temperature resistant.
Natural gas seal assembly use low temperature resistant composite material, by sealing axle sleeve gland 82, natural seal 85 and
Sealing ring 83 forms, and is combined in insertion copper bush groove using high-pressure anti-wear lip packing, and medium is hydraulic oil and gas, moves
State seal assembly prevents hydraulic fluid leak, maintains pressure constant, the key component that safeguards system works normally.
Distributor material is 06Cr19Ni10, and inside setting process pipeline and nozzle, end face open up bolt hole and seal groove,
It can gather, distribution circuit trend, the input and output of gas and coolant system are realized and connect in bottle with bottle Outer Tube, pipe fitting
Function.It completes pump parts to be connected and fixed, the pump housing is connected and fixed the critical component of sealing with bottle body.And correlate meter valve,
The connectivity port of detecting element.
Water-bath gasifier uses coil arrangement material for 06Cr19Ni10, integrates soldering.Built-in heat-exchanger rig and engine
Coolant connection.Engine-cooling system access coolant liquid circulation pipe is subjected to heat exchange, recycling benefit to LNG by the device
With the heat of engine, the gasification efficiency and efficiency of combustion of LNG are improved, reduces engine temperature while heating to LNG gasification,
Ensure the work of engine normal table.
Booster pump main body uses 06Cr19Ni10, integrates soldering.It is fixedly connected with compression cylinder and hydraulic cylinder and associated components, even
It connects gasifier and is integral realization support reinforcing effect.
Compression cylinder material is 06Cr19Ni10 subzero treatment, realizes that LNG is discharged in gas compression pressurization, inspiration, cooperates in cylinder
Reciprocating motion of the pistons generates pressure.
Compression cylinder piston material is tin bronze, and opening up five road sealing grooves can be realized the executive component of gas compression, pass through
Power transmitting generates to move back and forth and the power of oil cylinder piston is applied in cylinder on LNG, makes its compression discharge.
Compression cylinder piston seal is using special composite material composition.Back and forth guiding and sealing are realized in operation in compression cylinder
Low temperature resistant, the anti-wear component of effect.Prevent LNG leakage from maintaining the auxiliary accessories of pressure output.
Low temperature seal component is using improvement TPFE and stainless steel, including the general plug envelope of low temperature, copper retaining ring, circlip, setting
In first of sealing of LNG bottom of bottle at pump bottom, has resistance to low temperature, prevent LNG from leaking.
Feed liquor check valve use stainless steel sub-assembly, be embedded into compression cylinder bottom equipped with compressed spring, it can be achieved that unidirectionally into
Liquid function prevents in compression cylinder liquid in compression process back to influencing boost performance in bottle.
Liquid check valve uses stainless steel sub-assembly out, and setting can be realized in compression cylinder gas outlet position unidirectionally goes out liquid function,
It prevents compressed highly pressurised liquid from returning in compression cylinder, maintains fluid pressure constant, improve boost performance.
Filter material is 06Cr19Ni10, including U-shaped metal bellows, high-precision strainer, and the bottommost of pump is arranged in
Bottom of bottle is directly touched using being flexible coupling, plays and buffers shockproof and feed liquor filtration, prevent impurity in bottle from entering air supply system.
Pipeline 5 uses 316 material steel high pressure seamless pipes and connector, connects in bottle compression cylinder outlet tube mouth to pump housing outlet
The highly pressurised liquid of mouth conveying compression cylinder discharge is discharged after gasification.
Working principle:
The present invention has gasification and pressurization dual function, i.e., is pressurized pump piston as power drive by onboard hydraulic system
It moves back and forth and compresses LNG, recycles engine coolant thermal energy exchange progress LNG gasification.High-pressure oil pipe is arranged in oil cylinder
The solenoid directional control valve for connecting onboard hydraulic system, the signal real-time control hydraulic system collected by intelligence control system open
Dynamic, stopping, commutation, overflow.Connect hydraulic system immediately when pressure detecting element detects system pressure deficiency, solenoid valve obtains
Electricity commutation hydraulic oil enters oil cylinder rise by connecting line and pushes directly on oil cylinder piston movement, contacts end when piston reaches stroke
Point piston reversal valve is opened, and instantaneous loss of pressure in cylinder, the pressure detecting element being arranged on pipeline detects that pressure change is cut immediately
Solenoid valve commutation is changed, oil cylinder piston backhaul oil inlet pushes piston to return.The reciprocating motion of piston is completed with this and realizes that power turns
Change, oil cylinder piston transfers power to compression the cylinder piston by piston rod and realizes that power transmits, compression the cylinder piston as executive component,
LNG in cylinder is sucked while moving back and forth, is discharged, the check valve that feed liquor and outlet end mouth is arranged in plays auxiliary work
One-way flow is carried out with guarantee LNG, guarantees that air supply system pressure is stablized, the pressure loss is avoided to cause booster pump frequent operation.When
LNG liquid is discharged by compression cylinder enters coil pipe water-bath gasification by outlet tube road, and the intracavitary coolant liquid of coolant liquid is by taking away
The heat that engine is generated by acting makes gasifier heat up and exchange with the heat-exchanger rig of internal LNG pipeline progress heat and reaches
Gasify the function of heating up.LNG after heat exchange gasification is changed into natural gas transportation to vehicle-mounted air accumulator, due to the row of booster pump
Amount be greater than gas consumption thus compression cylinder discharge natural gas constantly enter vehicle-mounted air accumulator, under the compression of booster pump, surge tank
Interior gas pressure density raises simultaneously, and after reaching setup pressure value, pressure detecting element transmits signal control booster pump immediately
It stops working, and maintains system pressure constant, so far form high pressure high density natural gas.
Claims (5)
1. booster pump built in a kind of automobile-used cryogenic natural gas bottle, which is characterized in that successively include:
Hydraulic cylinder, the hydraulic cylinder are provided with the first hydraulic oil inlet and outlet and the second hydraulic oil inlet and outlet, can be with vehicle
Hydraulic system is connected to, and is provided with oil cylinder piston in the hydraulic cylinder；
Cooling sap cavity, the cooling sap cavity are connected to cooling system of vehicle, coil pipe are arranged inside；
Counter balance pocket is provided with intercommunicating pore and is connected to outside；
Compression cylinder is provided with compression the cylinder piston, and the compression cylinder is additionally provided with feed liquor check valve and out liquid check valve, described
Out by pipeline connection between liquid check valve and the coil pipe；
Piston rod is fixedly installed the oil through the hydraulic cylinder, cooling sap cavity, counter balance pocket and compression cylinder, one end
The cylinder piston, the other end are provided with the compression the cylinder piston；
Feed liquor check valve is provided between filter, with the compression cylinder.
2. booster pump built in automobile-used cryogenic natural gas bottle according to claim 1, which is characterized in that the filter with
Metal bellows is provided between the compression cylinder.
3. booster pump built in automobile-used cryogenic natural gas bottle according to claim 1, which is characterized in that the hydraulic cylinder
It is provided with natural gas seal assembly between the cooling sap cavity, the hydraulic cylinder and the coolant liquid can be sealed
Chamber, and the two can be made to be fixedly connected.
4. booster pump built in automobile-used cryogenic natural gas bottle according to claim 1, which is characterized in that the counter balance pocket with
It is provided with low temperature seal component between the compression cylinder, the counter balance pocket and the compression cylinder can be sealed, and can make
The two is fixedly connected.
5. booster pump built in automobile-used cryogenic natural gas bottle according to claim 1, which is characterized in that it further include distributor,
The distributor can be gathered, distribution circuit is moved towards, and integrate the input and output of natural gas gas and coolant system, realize day
In right gas cylinder with bottle Outer Tube, pipe fitting linkage function；And the connectivity port of integrated correlate meter valve, detecting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548182.9A CN110185598A (en) | 2019-06-24 | 2019-06-24 | Booster pump built in a kind of automobile-used cryogenic natural gas bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910548182.9A CN110185598A (en) | 2019-06-24 | 2019-06-24 | Booster pump built in a kind of automobile-used cryogenic natural gas bottle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185598A true CN110185598A (en) | 2019-08-30 |
Family
ID=67723091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910548182.9A Pending CN110185598A (en) | 2019-06-24 | 2019-06-24 | Booster pump built in a kind of automobile-used cryogenic natural gas bottle |
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| CN (1) | CN110185598A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022907A (en) * | 2019-12-17 | 2020-04-17 | 常州市旭如安金属材料科技有限公司 | LNG vehicle-mounted gas cylinder supercharging device |
| CN111794941A (en) * | 2020-07-21 | 2020-10-20 | 湖州三井低温设备有限公司 | Hydraulic drive low-temperature reciprocating pump capable of reducing influence of low temperature on sealing position of piston rod |
| CN113738610A (en) * | 2021-09-24 | 2021-12-03 | 北京海德利森科技有限公司 | Piston type hydrogen compressor |
| CN114542427A (en) * | 2022-04-26 | 2022-05-27 | 杭州新亚低温科技有限公司 | Zero suction pressure head cryogenic liquid pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2541062A1 (en) * | 2011-06-29 | 2013-01-02 | Westport Power Inc. | Cryogenic pump |
| CN204738920U (en) * | 2015-07-02 | 2015-11-04 | 杭州富士达特种材料有限公司 | Reciprocating piston pump of liquefied natural gas gas cylinder for car |
| CN106121962A (en) * | 2016-06-29 | 2016-11-16 | 中材高新成都能源技术有限公司 | LNG cryopump |
| CN210050005U (en) * | 2019-06-24 | 2020-02-11 | 山东奥扬新能源科技股份有限公司 | Built-in booster pump of low-temperature natural gas bottle for vehicle |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2541062A1 (en) * | 2011-06-29 | 2013-01-02 | Westport Power Inc. | Cryogenic pump |
| CN204738920U (en) * | 2015-07-02 | 2015-11-04 | 杭州富士达特种材料有限公司 | Reciprocating piston pump of liquefied natural gas gas cylinder for car |
| CN106121962A (en) * | 2016-06-29 | 2016-11-16 | 中材高新成都能源技术有限公司 | LNG cryopump |
| CN210050005U (en) * | 2019-06-24 | 2020-02-11 | 山东奥扬新能源科技股份有限公司 | Built-in booster pump of low-temperature natural gas bottle for vehicle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022907A (en) * | 2019-12-17 | 2020-04-17 | 常州市旭如安金属材料科技有限公司 | LNG vehicle-mounted gas cylinder supercharging device |
| CN111794941A (en) * | 2020-07-21 | 2020-10-20 | 湖州三井低温设备有限公司 | Hydraulic drive low-temperature reciprocating pump capable of reducing influence of low temperature on sealing position of piston rod |
| CN113738610A (en) * | 2021-09-24 | 2021-12-03 | 北京海德利森科技有限公司 | Piston type hydrogen compressor |
| CN114542427A (en) * | 2022-04-26 | 2022-05-27 | 杭州新亚低温科技有限公司 | Zero suction pressure head cryogenic liquid pump |
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