EP4043709A2 - Elektrischer generator auf der basis von flüssigerdgas - Google Patents

Elektrischer generator auf der basis von flüssigerdgas Download PDF

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Publication number
EP4043709A2
EP4043709A2 EP20872769.3A EP20872769A EP4043709A2 EP 4043709 A2 EP4043709 A2 EP 4043709A2 EP 20872769 A EP20872769 A EP 20872769A EP 4043709 A2 EP4043709 A2 EP 4043709A2
Authority
EP
European Patent Office
Prior art keywords
electric generator
gas
lpg
compartment
generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20872769.3A
Other languages
English (en)
French (fr)
Other versions
EP4043709A4 (de
Inventor
Manuel Isaac AGUILERA SANCHEZ
Rafael Jose RODRIGUEZ ACOSTA MARQUEZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Himoinsa SL
Original Assignee
Himoinsa SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Himoinsa SL filed Critical Himoinsa SL
Publication of EP4043709A2 publication Critical patent/EP4043709A2/de
Publication of EP4043709A4 publication Critical patent/EP4043709A4/de
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0613—Switch-over from one fuel to another
    • F02D19/0615—Switch-over from one fuel to another being initiated by automatic means, e.g. based on engine or vehicle operating conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/025—Failure diagnosis or prevention; Safety measures; Testing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
    • F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0293—Safety devices; Fail-safe measures

Definitions

  • the present invention relates to the development of an electric generator that integrates in a single frame one or more liquefied petroleum gas (LPG) fuel tanks and a generator set, thus obtaining an electric generator powered by LPG with a great compactness that allows the frequent relocation of said generator since a reduction in the logistics necessary for its transfer and installation is achieved.
  • LPG liquefied petroleum gas
  • High polluting emissions The combustion of diesel entails a high emission of polluting compounds and particles over the combustion of natural gas and its derivatives.
  • High noise level The acoustic emissions associated with the operation of diesel electric generators limit their application and location.
  • the gas tanks where the fuel is stored for its operation are independent elements from the generator sets themselves, so the complete transport involves the use of two vehicles and two trailers, or a large transport vehicle which implies the establishment of complex and expensive logistics.
  • the installation of the electric generators in each location requires both the installation of the generator set, the installation of the gas tank and the gas pipes necessary to carry the fuel to the engine of the generator set.
  • the present invention satisfies this demand.
  • the electric generator according to the present invention arises from the high inefficiency associated with the relocation of the generator sets powered by LPG, used in the rental applications sector. Due to the characteristics of the sector, in which generator sets are rented to provide energy for different events and applications, in different locations that require the transfer of the elements that allow electricity generation, which mainly include the generator set and the fuel tank(s).
  • the present invention relates to an electric generator comprising a frame defining a first compartment and a second compartment.
  • the generator comprises a generator set established in the first compartment.
  • the electric generator comprises at least one tank of liquefied petroleum gas, LPG, established in the second compartment and a liquid-phase feed gas train that connects said tank to the generator set for the supply of LPG.
  • the present invention consists of new electrical generation equipment supplied entirely with liquefied petroleum gases LPG in which the LPG tank itself is integrated with the generator set in the same single structure or frame.
  • the exclusive use of a gaseous fuel source requires that the tank be pressurized and, therefore, the generator can include auxiliary systems to condition said fuel.
  • the present invention focuses on applications of generator sets that use LPG as fuel for electricity generation for the rental sector, which is strongly driven by aspects such as noise pollution, engine efficiency, gas emissions and eventual increase in energy demand.
  • the present invention relates to an electric generator that allows reducing the logistics necessary for uses and applications involving frequent relocation.
  • the electric generator according to the present invention intends to respond to the needs of the rental sector by developing compact generator equipment that integrates the LPG fuel tanks in the same equipment, maintaining the conditions of safety, autonomy and compactness and increasing ease of transfer while reducing the logistics required for relocation.
  • the generator sets according to the present invention comprise four different powers, one of 25, 40, 70 and 110 kVA, which allow their application to be validated within the ranges of the range intended for the rental sector.
  • the generator comprises three LPG tanks with a useful capacity of 450 liters.
  • the LPG tanks are sized to ensure autonomy of at least 26 hours in the preferred embodiment of 70 kVA, operating at a normal regime of 75% of the nominal load of the generator set of the electric generator.
  • the electric generator includes a single filling point for the three tanks.
  • the electric generator includes a system for external feeding both in liquid phase and in vapor phase.
  • the electric generator may comprise a second gas train that connects a gas source external to the electric generator to the generator set for the supply of LPG.
  • the electric generator accepts motorization and generators for both 50 Hz and 60 Hz.
  • the electric generator comprises a frame that defines two compartments which can be divided by a rock wool partition or the like in a first embodiment and by a sub-frame in a second embodiment.
  • the electric generator comprises at least two gas sensors, one in each compartment of the frame to increase safety.
  • the generator can be programmed to stop its operation immediately after detecting a presence of gas above the established limit.
  • the electric generator includes safety valves and conduits that evacuate the gas to the outside of the generator set in the event that excess pressure is detected inside the fuel tanks.
  • the electric generator (100) shown in Figure 1 powered by LPG comprises a single frame (110) which is shown in its entirety in Figure 2A .
  • the electric generator (100) also comprises a generator set (120) and a set of pressurized LPG tanks or reservoirs (130), in particular, three LPG tanks, which are shown in Figure 2B .
  • the electric generator (100) of Figure 1 has a power of 25 kVA. In other preferred embodiments, the electric generator (100) can have powers of 40, 70 and 110 kVA.
  • the three LPG tanks or reservoirs (130) have a useful capacity of 450 liters, which may require 15 minutes to be fully refueled.
  • the frame (110) it comprises inside a first part or compartment (110a) and a second part or compartment (110b) as can be seen in Figure 2A .
  • the frame (110) of the electric generator (100) includes a separation partition or barrier (150) and a casing (112) as well as ventilation means (114).
  • the first compartment (110a) is adapted to house the generator set (120).
  • the second compartment (110b) is adapted to house the LPG tanks or reservoirs (130).
  • the frame (110) of Figure 2A is a single indivisible frame that forms two compartments (110a, 11b): one for the generator set (120), that is, for motorization and electricity generation, and another for LPG tanks or reservoirs (130).
  • the frame (110) includes bulkhead fittings for fuel lines, sensors and electronics.
  • the bulkhead fittings and flexible pipes prevent vibrations caused by the operation of the generator set.
  • the electric generator (100) can comprise two gas detectors per compartment (110a, 110b) to speed up the detection of potential leaks.
  • the frame (110) includes openings at the bottom of the frame (110) to vent potentially explosive accumulations inside the bodywork.
  • the electric generator (100) comprises a liquid-phase feed gas train (140) which is shown in Figure 4 and which connects the three LPG tanks or reservoirs (130) of the electric generator (100) to the generator set (120) for the supply of LPG to the generator set (120).
  • the liquid-phase feed gas train (140) for feeding the generator set (120) with LPG gas stored in the LPG tanks may include a manual valve, a particulate filter, a primary pressure regulator, a solenoid valve, a vaporizer, a low pressure switch and pressure gauges for the inlet and outlet of the gas train (140).
  • the three LPG tanks or reservoirs (130) established in the second compartment (110b) are independently isolated from the generator set (112) and from the necessary pipes and elements by means of a separation partition or barrier (150) that may comprise rock wool.
  • FIG. 2B and 3 Also seen is a second gas-phase feed gas train 160 shown in Figures 2B and 3 which is established in frame compartment 110a.
  • the second gas-phase feed gas train (160) connects an external gas source to the generator set (120) for the supply of LPG or NG (Natural Gas) to the generator set (120).
  • LPG or NG Natural Gas
  • the gas-phase feed gas train (160) for the external supply of the generator set (120) with LPG or NG gas may include a manual valve, a particulate filter, a primary pressure regulator, a double solenoid valve, a low and high pressure switch and pressure gauges for the inlet and outlet of the gas train (140).
  • control panel To manage these three possibilities of fuel supply to the generator, there is an optional selector on the control panel with three positions depending on the option chosen: supply from internal LPG tanks in liquid phase, external supply of LPG in gaseous phase or external supply in gaseous phase of NG.
  • FIG 2B shows the installation of the LPG tanks or reservoirs (130) in the lower part of the generator set (120), in the part farthest from the main heat sources.
  • Two critical points in heat generation are identified: Peaks of maximum power requirements continued over time, and after stopping the generator set engine, at which time the cooling system stops working and heat continues to be emitted from the hot spots of the system.
  • the separation partition or barrier (150) of the frame (110) shown in Figure 2A comprises rock wool between the first compartment (110a) and second compartment (110b) of the frame (110).
  • the LPG tanks or reservoirs (130) have been isolated in the second compartment (110b) of the frame (110) and are independent of the generator set (120) established in the first compartment (110a) of the frame (110).
  • the first and second compartments (110a, 110b) comprise direct outlets to the outside for possible gas leaks.
  • the first and second compartments (110a, 110b) comprise gas sensors.
  • the compartment (110b) comprises passive ventilation for the LPG tanks or reservoirs (130) directly with the outside and ducts for the overpressure valves that expel the gas directly to the outside of the frame (110b).
  • the frame (110) comprises a subframe between the two compartments (110a, 110b) where the generator set (120) and the LPG tanks or reservoirs (130) are located, replacing the partition with rock wool.
  • This subframe allows greater insulation than the separation partition or barrier (150) with rock wool in the event of an increase in the power of the electric generator (100) from 25 kVA to 110 kVA in a second preferred embodiment.
  • the frame (110) comprises means of access (116) to the generator set (120) and to the LPG tanks or reservoirs (130) shown in Figures 1 and 2A for disassembling parts of the generator set (116) for maintenance, and for access to the fuel tanks without the need to disassemble the entire generator set.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP20872769.3A 2019-10-02 2020-09-29 Elektrischer generator auf der basis von flüssigerdgas Pending EP4043709A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201930852A ES2817298A1 (es) 2019-10-02 2019-10-02 Generador eléctrico basado en gas licuado del petróleo
PCT/ES2020/070586 WO2021064267A2 (es) 2019-10-02 2020-09-29 Generador eléctrico basado en gas licuado del petróleo

Publications (2)

Publication Number Publication Date
EP4043709A2 true EP4043709A2 (de) 2022-08-17
EP4043709A4 EP4043709A4 (de) 2023-05-24

Family

ID=75265368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20872769.3A Pending EP4043709A4 (de) 2019-10-02 2020-09-29 Elektrischer generator auf der basis von flüssigerdgas

Country Status (3)

Country Link
EP (1) EP4043709A4 (de)
ES (1) ES2817298A1 (de)
WO (1) WO2021064267A2 (de)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0223258A (ja) * 1988-07-11 1990-01-25 Yamaha Motor Co Ltd ガスエンジン
JPH05133240A (ja) * 1991-11-12 1993-05-28 Mitsubishi Heavy Ind Ltd ガスエンジン発電機
JP4486519B2 (ja) * 2005-01-31 2010-06-23 三菱重工業株式会社 ガスエンジン作業機
US9765918B2 (en) * 2007-02-06 2017-09-19 Bernardo J. Herzer Portable gas powered internal combustion engine arrangement
CN101131119A (zh) * 2007-09-03 2008-02-27 云南蓝海新能源投资有限公司 模块化5000kw多燃料发电机组
CN104047710B (zh) * 2014-05-30 2016-07-06 浙江耀锋动力科技有限公司 多燃料发电机组
US10697398B2 (en) * 2015-06-12 2020-06-30 Champion Power Equipment, Inc. Batteryless dual fuel engine with liquid fuel cut-off
CN205243648U (zh) * 2015-11-23 2016-05-18 华鼎电源(天津)有限公司 一种气罐内置式lpg箱式静音发电机组
PT3249201T (pt) * 2016-05-24 2020-07-09 CleanTech Swiss AG Dispositivo para uma operação de um motor
US20180080392A1 (en) * 2016-09-21 2018-03-22 Briggs & Stratton Corporation Portable generator having multiple fuel sources

Also Published As

Publication number Publication date
EP4043709A4 (de) 2023-05-24
WO2021064267A2 (es) 2021-04-08
ES2817298A1 (es) 2021-04-06
WO2021064267A3 (es) 2021-07-22

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