CN107542597A - It is a kind of to realize diesel oil and the generating set of liquefied natural gas double fuel conversion - Google Patents
It is a kind of to realize diesel oil and the generating set of liquefied natural gas double fuel conversion Download PDFInfo
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- CN107542597A CN107542597A CN201710873011.4A CN201710873011A CN107542597A CN 107542597 A CN107542597 A CN 107542597A CN 201710873011 A CN201710873011 A CN 201710873011A CN 107542597 A CN107542597 A CN 107542597A
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- combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
Diesel oil and the generating set of liquefied natural gas double fuel conversion can be realized the present invention relates to a kind of, including liquified natural gas tank, the gas outlet of liquified natural gas tank and one end of cryogenic hose connect, the other end connection heating under reduced pressure device of cryogenic hose, heating under reduced pressure device connects the entrance point of compound regulating valve by the first flexible pipe, the port of export of compound regulating valve connects blender by the second flexible pipe, internal combustion engine intake filter is also connected with the mixer, the gas outlet of internal combustion engine connects silencer by internal-combustion engine vent-pipe, generator is connected with the internal combustion engine and drives the electrical power generators.The present invention is simple in construction, improvement cost is low, can be widely used for the transformation of storage diesel generating set, and it has under various loads, and small, the comprehensive diesel oil substitution rate of substitution ratio of NG change is high, adapts to the advantages of environment temperature is high；Compact overall structure of the present invention can be integrated in the container type silent case of a standard size, had the advantages of exhaust smoke is low, be widely used in oil field, field engineering and extremely hot area.
Description
Technical field
The present invention relates to oil-electric engine group field, more particularly to one kind can realize diesel oil and liquefied natural gas double fuel
The generating set of conversion.
Background technology
Worsening instantly in petroleum resources worsening shortages, environment, energy-saving and emission-reduction are very urgent.The soot row of diesel engine
Put very seriously, it is very big to urban environment and human health risk.If not using cost-effective measure to solve, diesel engine
Using will be limited by increasingly strict Abgasgesetz.
The content of the invention
The applicant is directed to above-mentioned existing issue, has carried out Improvement, there is provided one kind can realize that diesel oil is natural with liquefaction
The generating set of gas double fuel conversion, the advantages of it has, and pumping loss is small, the thermal efficiency is high low with soot emissions.
The technical solution adopted in the present invention is as follows：
A kind of generating set that can be realized diesel oil and be changed with liquefied natural gas double fuel, including liquified natural gas tank, it is described
The gas outlet of liquified natural gas tank and one end of cryogenic hose connect, the other end connection heating under reduced pressure device of the cryogenic hose,
The heating under reduced pressure device connects the entrance point of compound regulating valve by the first flexible pipe, and the port of export of the compound regulating valve passes through the
Two flexible pipes connect blender, internal combustion engine intake filter are also connected with the blender, the blender passes through plenum
Device is connected with one end of air-admission pressure-booster escape pipe, the air inlet of the other end connection internal combustion engine of the air-admission pressure-booster escape pipe
Mouthful, the gas outlet of the internal combustion engine connects silencer by internal-combustion engine vent-pipe, and generator is connected and driven with the internal combustion engine
The electrical power generators；Internal combustion engine cylinder jacket water radiator passes through internal combustion engine cylinder jacket water radiator inlet pipe and internal combustion engine cylinder jacket water-cooled
Device outlet pipe and the internal combustion engine and company, the internal combustion engine cylinder jacket water radiator inlet pipe are subtracted by heating under reduced pressure device water inlet pipe with described
Press heater heat cycles entrance point connection, the internal combustion engine cylinder jacket water radiator outlet pipe by heating under reduced pressure device outlet pipe with
The heat cycles port of export connection of heating under reduced pressure device；Also include the injection pump being connected with internal combustion engine, set in the injection pump
Electromagnetic valve for braking and injection pump control rack, disconnect each other between electromagnetic valve for braking and the injection pump control rack, described
The spacing magnetic valve of control rack for realizing diesel engine double fuel state is also set up on injection pump control rack.
Its further technical scheme is：
Measurement consumption natural gas is also sequentially provided on the other end that the cryogenic hose is connected with heating under reduced pressure device
The flowmeter and electric butterfly valve of flow；
In the intersection of the heating under reduced pressure device water inlet pipe and internal combustion engine cylinder jacket water radiator inlet pipe, electric T-shaped valve is set；
In also passing through compound regulating valve pressure-sensitive barrier film low pressure side chamber connection flexible pipe and blender in the compound regulating valve
Outlet connection, also pass through compound regulating valve pressure-sensitive barrier film high pressure side chamber connection flexible pipe and plenum in the corrosion regulating valve
Device escape pipe connects；
In double fuel state, the spacing magnetic valve adhesive of control rack, make the first screw thread of the electromagnetic valve for braking
Connection head be threadedly coupled spacing between head and increase to the electromagnetic valve for braking and be in the second of injection pump control rack breaks
Open position；
Annular groove is processed on the inwall of the blender, it is along the circumferential direction uniform being opened up corresponding to the annular groove on trunnion
Hole.
Beneficial effects of the present invention are as follows：
(1) present invention is simple in construction, improvement cost is low, can be widely used for the transformation of storage diesel generating set, and it has
Small, the comprehensive diesel oil substitution rate of substitution ratio of NG change is high under various loads, adapts to the advantages of environment temperature is high；It is of the invention overall
It is compact-sized to be integrated in the container type silent case of a standard size, there is the advantages of exhaust smoke is low, mobility is good,
It is widely used in oil field, field engineering and extremely hot area.
(2) present invention modifies to the injection pump of internal combustion engine, between former electromagnetic valve for braking and injection pump control rack
The spacing magnetic valve of embedded control rack, it is achieved thereby that the switching of pure diesel oil state and double fuel state, has good grasp
The property made is particularly to the incomplete area of natural gas supply.
(3) natural gas supply system of the present invention is controlled natural using the outer mechanical mixture of cylinder by the gas pressure in air inlet pipe
Gas air demand, ensure that internal combustion engine has preferable power performance and economic performance, be basically unchanged internal combustion engine performance, operate
With easy to maintenance, good reliability.
(4) internal combustion engine cylinder jacket water radiator is set to carry out heats liquefied natural gas in the present invention, it can make internal combustion engine cylinder jacket
The resistance to environment temperature of water radiator at least improves more than 5 DEG C.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of blender in the present invention.
Fig. 3 is the structural representation of injection pump in the present invention.
Wherein：1st, liquified natural gas tank；2nd, cryogenic hose；3rd, flowmeter；4th, electric butterfly valve；5th, heating under reduced pressure device；6th, subtract
Press tube, heater inlet；7th, electric T-shaped valve；8th, heating under reduced pressure device outlet pipe；9th, the first flexible pipe；10th, compound regulating valve；11st,
Two flexible pipes；12nd, compound regulating valve pressure-sensitive barrier film low pressure side chamber connection flexible pipe；13rd, compound regulating valve pressure-sensitive barrier film high pressure side chamber connects
Connect flexible pipe；14th, internal combustion engine intake filter；15th, blender；151st, trunnion；152nd, hole；16th, air-admission pressure-booster；17th, air inlet increases
Depressor escape pipe；18th, injection pump；19th, electromagnetic valve for braking；191st, the first threaded connection head；20th, injection pump control rack；
201st, the second threaded connection head；21st, the spacing magnetic valve of control rack；22nd, internal combustion engine cylinder jacket water radiator；23rd, internal combustion engine；
24th, internal-combustion engine vent-pipe；25th, silencer；26th, generator.
Embodiment
Illustrate the embodiment of the present invention below.
As shown in figure 1, a kind of generating set that can realize diesel oil and the conversion of liquefied natural gas double fuel includes liquefaction naturally
Gas tank 1, the gas outlet of liquified natural gas tank 1 are connected with one end of cryogenic hose 2, and the other end connection decompression of cryogenic hose 2 adds
Hot device 5, measurement consumption gas discharge is also sequentially provided on the other end that cryogenic hose 2 is connected with heating under reduced pressure device 5
Flowmeter 3 and electric butterfly valve 4.As shown in figure 1, heating under reduced pressure device 5 connects the import of compound regulating valve 10 by the first flexible pipe 9
End, the port of export of compound regulating valve 10 connect blender 15 by the second flexible pipe 11, and being also connected with internal combustion engine on blender 15 enters
Air filter 14, blender 15 are connected by air-admission pressure-booster 16 with one end of air-admission pressure-booster escape pipe 17, air-admission pressure-booster
The air inlet of the other end connection internal combustion engine 23 of escape pipe 17, the gas outlet of internal combustion engine 23 are disappeared by the connection of internal-combustion engine vent-pipe 24
Sound device 25, generator 26 are connected with internal combustion engine 23 and drive generator 26 to generate electricity；Internal combustion engine cylinder jacket water radiator 22 passes through internal combustion
Machine cylinder sleeve water radiator inlet pipe and internal combustion engine cylinder jacket water radiator outlet pipe and internal combustion engine 22 simultaneously connect, and internal combustion engine cylinder jacket water radiator enters
Pipe is connected by heating under reduced pressure device water inlet pipe 6 with the heat cycles entrance point of heating under reduced pressure device 5, and internal combustion engine cylinder jacket water radiator goes out
Pipe is connected by heating under reduced pressure device outlet pipe 8 with the heat cycles port of export of heating under reduced pressure device 5, in heating under reduced pressure device water inlet pipe 6
Electric T-shaped valve 7 is set with the intersection of internal combustion engine cylinder jacket water radiator inlet pipe.As shown in shown in Fig. 1 Fig. 3, in addition to and internal combustion
The injection pump 18 that machine 23 connects, in setting electromagnetic valve for braking 19 and injection pump control rack 20, electromagnetic valve for braking in injection pump 18
Disconnect, also set up on injection pump control rack 20 for realizing the double combustions of diesel engine each other between 19 and injection pump control rack 20
The spacing magnetic valve 21 of control rack of material state, the spacing rod of magnetic valve 21 of control rack connect with the rod screw thread of electromagnetic valve for braking 19
Connect.In also passing through compound regulating valve pressure-sensitive barrier film low pressure side chamber connection flexible pipe 12 and blender 15 in above-mentioned compound regulating valve 10
Outlet connection, also pass through compound regulating valve pressure-sensitive barrier film high pressure side chamber connection flexible pipe 13 and plenum in corrosion regulating valve 10
Device escape pipe 17 connects.Annular groove is processed on the inwall of above-mentioned blender 15, is opened up circumferentially on trunnion corresponding to annular groove 151
The uniform hole 152 in direction, when internal combustion engine 23 operates, make a number of natural gas using the vacuum formed at trunnion 151
Into annular groove, the mixing chamber that the hole 152 being distributed on trunnion 151 enters blender 15 is then flowed through, it enters after being mixed with air
Air-admission pressure-booster 16, the size and quantity in the above-mentioned hole 152 opened up according to needed for internal combustion engine peak power during amount of natural gas most
Good flow velocity and choose.
The specific work process of the present invention is as follows：
As shown in Figure 1, Figure 3, the outlet hand-operated valve of liquified natural gas tank 1 is opened, electric butterfly valve 4, electronic three are closed in power-off
Port valve 7, heating under reduced pressure device water inlet pipe 6, the spacing magnetic valve 21 of control rack, when the spacing magnetic valve 21 of above-mentioned control rack disconnects
When, the position of injection pump control rack 20 does not change, and makes injection pump control rack 20 unrestricted, so that internal combustion engine 23 is in pure
Diesel fuel state.When the inflow temperature of internal combustion engine cylinder jacket water radiator 22 reaches 60 DEG C, it is powered and opens electric butterfly valve 4, electricity
Dynamic triple valve 7, heating under reduced pressure device water inlet pipe 6 and the spacing magnetic valve 21 of control rack, the spacing adhesive of magnetic valve 21 of control rack, make
First threaded connection head 191 of electromagnetic valve for braking 19 is threadedly coupled between head 201 with the second of injection pump control rack 20
Spacing be enlarged to electromagnetic valve for braking 19 disconnect (parking) position with its be reduced to 50% in peak torque operating mode control rack position
The position of fuel delivery is corresponding, and at this moment internal combustion engine is in diesel oil and liquefied natural gas double fuel state.As shown in figure 1, when generating
When unit load increases, electric butterfly valve 4 gradually opens it is big, the high pressure side chamber of the pressure-sensitive barrier film of compound regulating valve 10 and low pressure side chamber
Differential pressure gradually increases, and compound regulating valve 10 is gradually opened greatly, and injection pump fuel delivery is in electromagnetic valve for braking 19, fuel feeding in this condition
It is gradually increased in the presence of the spacing magnetic valve 21 of rack to standard-sized sheet, when generating set load reduces, electric butterfly valve 4 gradually closes
Small, the high pressure side chamber of the pressure-sensitive barrier film of compound regulating valve 10 and the differential pressure of low pressure side chamber are gradually reduced, and compound regulating valve 10 is gradual
Turn down, injection pump fuel delivery gradually closes in the presence of electromagnetic valve for braking 19, the spacing magnetic valve 21 of control rack in this condition
It is small internal combustion engine 23 is in idling state.
As shown in figure 1, in stopped status, electric butterfly valve 4, electric T-shaped valve 7, heating under reduced pressure device water inlet pipe are closed in power-off
6 and the spacing magnetic valve 21 of control rack, now injection pump control rack 20 is unrestricted, internal combustion engine 23 is in straight diesel fuel
State, internal combustion engine 23 are shut down, the outlet hand-operated valve of manual-lock liquified natural gas tank 1.
In the present invention, the effect of heating under reduced pressure device 5 is that liquefied natural gas is carried out into high pressure relief, and its natural gas maximum is defeated
Go out pressure 1.5MPa, minimum output pressure is 1.2MPa, and the needs of different operating modes are met with this, are provided with heating under reduced pressure device 5
Safety valve and heat cycles import and heat cycles outlet, because liquefied natural gas wants swelling heat absorption in gasification is depressurized,
To avoid supply air line and other parts freeze damage, using the cylinder sleeve recirculated water of internal combustion engine cylinder jacket water radiator 22 to the day that liquefies
The gasification heating of right gas, when the aperture work(of the reduction of natural gas output pressure, then increasing electric butterfly valve 4 of heating under reduced pressure device 5
Rate ratio, when the natural gas output pressure of heating under reduced pressure device 5 raises, then the aperture power ratio of reduction electric butterfly valve 4, works as heating under reduced pressure
When the natural gas output pressure of device 5 is more than 1.5MPa, safety valve open decompression, power-off close electric butterfly valve 4, electric T-shaped valve 7,
The spacing magnetic valve 21 of the control rack of heating under reduced pressure device water inlet pipe 6, and make injection pump control rack unrestricted, at this moment at internal combustion engine
In straight diesel fuel state.
Above description is explanation of the invention, is not the restriction to invention, limited range of the present invention is referring to right
It is required that in the case of the basic structure without prejudice to the present invention, the present invention can make any type of modification.
Claims (6)
1. a kind of can realize diesel oil and the generating set of liquefied natural gas double fuel conversion, it is characterised in that：It is natural including liquefying
Gas tank (1), the gas outlet of the liquified natural gas tank (1) are connected with one end of cryogenic hose (2), the cryogenic hose (2)
Other end connection heating under reduced pressure device (5), the heating under reduced pressure device (5) connect compound regulating valve (10) by the first flexible pipe (9)
Entrance point, the port of export of the compound regulating valve (10) connects blender (15) by the second flexible pipe (11), in the blender
(15) internal combustion engine intake filter (14) is also connected with, the blender (15) passes through air-admission pressure-booster (16) and air-admission pressure-booster
One end connection of escape pipe (17), the air inlet of the other end connection internal combustion engine (23) of the air-admission pressure-booster escape pipe (17),
The gas outlet of the internal combustion engine (23) connects silencer (25), generator (26) and the internal combustion by internal-combustion engine vent-pipe (24)
Machine (23) connects and drives the generator (26) to generate electricity；Internal combustion engine cylinder jacket water radiator (22) passes through internal combustion engine cylinder jacket water-cooled
Device inlet pipe and internal combustion engine cylinder jacket water radiator outlet pipe and the internal combustion engine (22) simultaneously connect, the internal combustion engine cylinder jacket water radiator inlet pipe
It is connected by heating under reduced pressure device water inlet pipe (6) with the heat cycles entrance point of the heating under reduced pressure device (5), the internal combustion engine cylinder jacket
Water radiator outlet pipe is connected by heating under reduced pressure device outlet pipe (8) with the heat cycles port of export of heating under reduced pressure device (5)；Also include
The injection pump (18) being connected with internal combustion engine (23), in setting electromagnetic valve for braking (19) and oil spout oil pump feed in the injection pump (18)
Rack (20), disconnected each other between the electromagnetic valve for braking (19) and injection pump control rack (20), in the oil spout oil pump feed
The spacing magnetic valve of control rack (21) for realizing diesel engine double fuel state is also set up on rack (20).
2. a kind of generating set that can be realized diesel oil and be changed with liquefied natural gas double fuel as claimed in claim 1, its feature
It is：It is natural that measurement consumption is also sequentially provided on the other end that the cryogenic hose (2) is connected with heating under reduced pressure device (5)
The flowmeter (3) and electric butterfly valve (4) of throughput.
3. a kind of generating set that can be realized diesel oil and be changed with liquefied natural gas double fuel as claimed in claim 1, its feature
It is：In the intersection of the heating under reduced pressure device water inlet pipe (6) and internal combustion engine cylinder jacket water radiator inlet pipe, electric T-shaped valve is set
(7)。
4. a kind of generating set that can be realized diesel oil and be changed with liquefied natural gas double fuel as claimed in claim 1, its feature
It is：In on the compound regulating valve (10) also by compound regulating valve pressure-sensitive barrier film low pressure side chamber connection flexible pipe (12) with mixing
The outlet connection of device (15), also connected on the corrosion regulating valve (10) by compound regulating valve pressure-sensitive barrier film high pressure side chamber soft
Pipe (13) is connected with air-admission pressure-booster escape pipe (17).
5. a kind of generating set that can be realized diesel oil and be changed with liquefied natural gas double fuel as claimed in claim 1, its feature
It is：In double fuel state, the spacing magnetic valve of control rack (21) adhesive, make the first of the electromagnetic valve for braking (19)
Threaded connection head (191) with the second of injection pump control rack (20) be threadedly coupled head (201) between spacing increase to institute
State electromagnetic valve for braking (19) and be in open position.
6. a kind of generating set that can be realized diesel oil and be changed with liquefied natural gas double fuel as claimed in claim 1, its feature
It is：Annular groove is processed on the inwall of the blender (15), is opening up circumferentially side corresponding to the annular groove on trunnion (151)
To uniform hole (152).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873011.4A CN107542597B (en) | 2017-09-25 | 2017-09-25 | Generating set capable of realizing dual-fuel conversion of diesel oil and liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873011.4A CN107542597B (en) | 2017-09-25 | 2017-09-25 | Generating set capable of realizing dual-fuel conversion of diesel oil and liquefied natural gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107542597A true CN107542597A (en) | 2018-01-05 |
| CN107542597B CN107542597B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710873011.4A Active CN107542597B (en) | 2017-09-25 | 2017-09-25 | Generating set capable of realizing dual-fuel conversion of diesel oil and liquefied natural gas |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527516A (en) * | 1984-02-06 | 1985-07-09 | Pro-Staff Overload Enterprises Limited | Dual fuel engine |
| CN201162589Y (en) * | 2008-03-06 | 2008-12-10 | 杨华昌 | Gas universal miniature type gaseous propellant engine gas mixer capable of automatic gas regulation |
| CN202431377U (en) * | 2011-12-20 | 2012-09-12 | 遂宁市华旭科技有限公司 | Diesel oil/natural gas double-fuel supply system |
| CN103437870A (en) * | 2013-07-24 | 2013-12-11 | 中国科学院工程热物理研究所 | System and method for comprehensively utilizing residual heat of compressed natural gas engine (CNGE) |
| CN205559086U (en) * | 2016-03-08 | 2016-09-07 | 潍柴动力股份有限公司 | Dual -fuel engine system |
-
2017
- 2017-09-25 CN CN201710873011.4A patent/CN107542597B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527516A (en) * | 1984-02-06 | 1985-07-09 | Pro-Staff Overload Enterprises Limited | Dual fuel engine |
| CN201162589Y (en) * | 2008-03-06 | 2008-12-10 | 杨华昌 | Gas universal miniature type gaseous propellant engine gas mixer capable of automatic gas regulation |
| CN202431377U (en) * | 2011-12-20 | 2012-09-12 | 遂宁市华旭科技有限公司 | Diesel oil/natural gas double-fuel supply system |
| CN103437870A (en) * | 2013-07-24 | 2013-12-11 | 中国科学院工程热物理研究所 | System and method for comprehensively utilizing residual heat of compressed natural gas engine (CNGE) |
| CN205559086U (en) * | 2016-03-08 | 2016-09-07 | 潍柴动力股份有限公司 | Dual -fuel engine system |
Non-Patent Citations (1)
| Title |
|---|
| 张红光,盛宏至,潘奎润,张锐: "车用柴油/天然气双燃料发动机的开发" * |
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| CN107542597B (en) | 2023-05-12 |
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