CN113137305B - Case sled formula LNG generating set based on disconnect-type water tank cooling system - Google Patents
Case sled formula LNG generating set based on disconnect-type water tank cooling system Download PDFInfo
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- CN113137305B CN113137305B CN202110522429.7A CN202110522429A CN113137305B CN 113137305 B CN113137305 B CN 113137305B CN 202110522429 A CN202110522429 A CN 202110522429A CN 113137305 B CN113137305 B CN 113137305B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000001816 cooling Methods 0.000 title claims description 9
- 230000017525 heat dissipation Effects 0.000 claims abstract description 69
- 238000005192 partition Methods 0.000 claims abstract description 29
- 238000002309 gasification Methods 0.000 claims abstract description 26
- 238000003860 storage Methods 0.000 claims abstract description 14
- 239000000110 cooling liquid Substances 0.000 claims description 22
- 230000005855 radiation Effects 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 16
- 239000003063 flame retardant Substances 0.000 claims description 14
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 2
- 238000013016 damping Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 2
- 239000003949 liquefied natural gas Substances 0.000 description 32
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 239000002826 coolant Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
-
- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/11—Thermal or acoustic insulation
-
- 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
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
-
- 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
- F02M21/0221—Fuel storage reservoirs, e.g. cryogenic tanks
-
- 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
- F02M21/06—Apparatus for de-liquefying, e.g. by heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P2005/025—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers using two or more air pumps
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a box-prying type LNG generator set based on a separated water tank heat dissipation system, which comprises a generator set box body, wherein the generator set box body comprises a gasification zone, a power zone and a heat dissipation zone, the gasification zone and the power zone are separated by a partition board, an LNG storage tank is arranged in an inner cavity of the gasification zone, the outer end of the LNG storage tank is connected with a gasifier through a first connecting pipe, a motor and an engine are arranged in the inner cavity of the power zone, a partition board is arranged between the power zone and the heat dissipation zone, a radiator and a water tank are arranged on the side wall of the inner cavity of the heat dissipation zone, and a large exhaust fan is arranged at the top of the heat dissipation zone. The separation of the heat dissipation area and the power area can improve the heat dissipation efficiency in the generator set box body, namely, under the premise of guaranteeing the use safety of the generator set, the gasification area is added into the generator set box body, the integrity of the generator set box body is guaranteed, and great convenience is provided for the transportation of the LNG generator set.
Description
Technical Field
The invention relates to the technical field of generators, in particular to a box prying type LNG generator set based on a separated water tank heat dissipation system.
Background
The LNG generator set is small and medium-sized power generation equipment, has the advantages of energy conservation, emission reduction, flexibility, less investment, convenient starting and the like, is widely applied to various departments such as building, communication, mining, road construction, forest areas, farmland irrigation, field construction, national defense engineering and the like, can be used as an emergency standby power supply, and provides a stable alternating current power supply rapidly once power is cut off. Because of environmental protection needs, reduction generating set noise, rain-proof dustproof to and remove convenient factor consideration, the generating set that lease market used is mostly container formula generating set.
The container formula LNG generating set inner space is narrow and small, and ventilation radiating effect is poor, easily appears the too high phenomenon of temperature, influences generating set normal operating, and the too high temperature transfer can influence the safety in utilization of gasifier and LNG storage tank even to the gasification area, still can damage the engine when serious.
Disclosure of Invention
The invention aims to provide a tank prying type LNG generator set based on a separated type water tank heat radiation system, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a case sled formula LNG generating set based on disconnect-type water tank cooling system, includes the generating set box, the generating set box includes gasification district, power district and heat dissipation district, separate through the partition panel between gasification district and the power district, the partition panel includes metal extension board, connecting plate, heat insulating board, fire-retardant layer and additional fixation board, the LNG storage tank is installed to gasification district inner chamber, the LNG storage tank outer end is connected with the gasifier through first connecting pipe;
a motor and an engine are arranged in the inner cavity of the power area, and an inlet and an outlet of cooling liquid on the engine are respectively connected with a second cooling liquid conveying pipe and a first cooling liquid conveying pipe; the tail end of the gasifier is connected with the engine through a second connecting pipe;
A partition plate is arranged between the power area and the heat dissipation area, a second installation opening and a pipeline hole are formed in the partition plate, and a small exhaust fan is installed in the second installation opening;
The front and rear sides of the heat dissipation area are respectively provided with a first air inlet and a second air inlet, the right end of the heat dissipation area is provided with an exhaust grid, the side wall of the inner cavity of the heat dissipation area is provided with a radiator and a water tank, the top end of the heat dissipation area is provided with a first mounting opening, and the first mounting opening is provided with a large exhaust fan;
the fixed bolster is installed to big exhaust fan inner chamber, and fixed mounting has the silence fan on the fixed bolster, be equipped with the snubber block between fixed bolster and the big exhaust fan inner chamber bottom, the ventilation hole has all been seted up to the upper and lower both ends face of big exhaust fan.
Preferably, the top of the gasification zone is provided with a grid, the side part of the gasification zone is provided with a first double door, and the first double door is provided with a first heat dissipation grid.
Preferably, the metal support plate, the heat insulation plate, the flame-retardant layer and the external reinforcing plate are sequentially laminated and fixedly connected, the connecting plates are welded at the upper end and the lower end of the metal support plate, the width of each connecting plate is larger than or equal to the sum of the thicknesses of the metal support plate, the heat insulation plate, the flame-retardant layer and the external reinforcing plate, and the connecting plates are fixedly connected with the upper end and the lower end of the inner cavity of the generator set box body.
Preferably, the number of the gasifiers is not less than two, the gasifiers are annularly surrounded outside the LNG storage tank, and the adjacent gasifiers are communicated through a first connecting pipe; the first connecting pipe and the second connecting pipe are respectively provided with a control valve, and the second connecting pipe is provided with a pressure regulating metering device.
Preferably, the large exhaust fan is positioned in the middle of the top end of the heat dissipation area, the upper end of the large exhaust fan is connected with a fan top cover plate through hinge cover, the outer diameter of the upper end surface of the fan top cover plate is equal to the inner diameter of the first mounting opening, namely the fan top cover plate is embedded in the top end surface of the heat dissipation area; the side part of the bottom end of the large exhaust fan is provided with a connecting lug, and the connecting lug is fixedly connected with the top of the inner cavity of the heat dissipation area through a connecting bolt.
Preferably, the front side and the rear side of the generator set box body are both provided with second heat dissipation grids, the top end of a heat dissipation area of the generator set box body is provided with an exhaust fan, and the outer side of the heat dissipation area of the generator set box body is provided with a second double door.
Preferably, the upper end and the lower end of the partition plate are fixedly provided with mounting plates, the mounting plates are provided with mounting holes, and the mounting plates can be fixedly connected with the upper side wall and the lower side wall of the inner cavity of the generator set box body through the mounting holes. .
Preferably, the number of the second mounting openings is not less than two, the second mounting openings are symmetrically distributed in the upper space of the partition plate, and each second mounting opening is provided with a small exhaust fan.
Preferably, the small exhaust fan is a mute small fan, the small exhaust fan is cylindrical, the middle part of the outer side wall is provided with a thread section, the thread section is fixedly connected with the second mounting opening through threads, one side of the thread section is provided with a check ring, two end faces of the small exhaust fan are both covered with cover plates, and the cover plates are net-shaped breathable plates.
Preferably, the second cooling liquid conveying pipe and the first cooling liquid conveying pipe are respectively communicated with the water tank and the radiator, and the water tank is communicated with the radiator through a third cooling liquid conveying pipe.
Compared with the prior art, the invention has the beneficial effects that: this kind of case sled formula LNG generating set based on disconnect-type water tank cooling system:
(1) The separation of the heat dissipation area and the power area can improve the heat dissipation efficiency in the generator set box body, and on the premise of high-efficiency heat dissipation, namely on the premise of guaranteeing the use safety of the generator set, the gasification area is added into the generator set box body, so that the integrity of the generator set box body is guaranteed, and great convenience is provided for the transportation of the LNG generator set;
(2) The arranged partition plate can play roles in blocking heat and resisting flame, so that the use safety of the box-prying type LNG generator set can be improved;
(3) Compared with the original traditional mode of integrally connecting the engine and the engine exhaust fan, the noise of the whole generator set is obviously reduced by arranging the independent large exhaust fan and the independent small exhaust fan, and the noise is reduced by more than 10dB through tests, so that the engine is very beneficial to the application of leasing markets;
(4) The large exhaust fan is fixed at the top of the heat dissipation area through the connecting lugs, cleaning and maintenance of the large exhaust fan can be completed without entering the box body and only by opening a fan top cover plate, the large exhaust fan at the top is firmly installed, displacement of an engine and a fan possibly caused by frequent movement of a generator set during leasing can be avoided, and faults caused by the fan are reduced;
(5) Through separating the power district and the radiator and setting for the flow direction of air current is: the heat radiation grille of the first box door enters the power area, the upper part of the power area is discharged into the heat radiation area through the small exhaust fan, the heat radiation area is discharged from the exhaust grille and the large exhaust fan, and meanwhile, the external cold air entering from the first air inlet and the second air inlet drives the hot air in the heat radiation area to be discharged from the large exhaust fan, so that the circulation of air flow inside and outside the box body of the engine unit is improved, the convection principle of cold and hot air is compounded, the heat radiation efficiency and the heat radiation effect of the engine unit are greatly improved, and the phenomenon of overhigh water temperature is avoided;
(6) By arranging the large exhaust fan at the top, on one hand, the noise of the operation of the large exhaust fan at the top is far smaller than that of the fan carried by the generator set, and on the other hand, compared with a motor fan which can finish cleaning and maintenance only by entering the inner part of the box body, the maintenance and cleaning of the large exhaust fan are more convenient and faster;
(7) The partition plate and the small exhaust fan which is convenient to detach on the partition plate are arranged, so that the small exhaust fan can be conveniently cleaned and maintained on one hand, and the air flow communication between the power area and the heat dissipation area can be ensured on the other hand, and the heat dissipation effect is improved;
(8) The radiator can be cleaned by entering the radiating area through opening the second double-door of the radiating area, the operation is simple, the influence on the engine is avoided, the cleaning dead angle is small, and convenience is provided for daily maintenance of the radiator;
(9) Through setting up big exhaust fan in the top, need not reentrant box inside to the maintenance of fan bearing lubricating oil, and then reduced the rate of production of fault point, very big reduction manpower and material cost.
Drawings
Fig. 1 is a schematic diagram of a tank pry type LNG generator set based on a separate tank heat dissipating system;
Fig. 2 is a cross-sectional view of a tank skid type LNG generator set based on a separate tank heat removal system;
FIG. 3 is a schematic view of a gasifier;
FIG. 4 is an exploded view of a partition panel;
fig. 5 is a right side view of a tank pry type LNG generator set based on a separate tank heat removal system;
FIG. 6 is a cross-sectional view of a heat dissipation area;
FIG. 7 is a cross-sectional view of a large exhaust fan;
FIG. 8 is a schematic view of a structure of a separator;
FIG. 9 is a side view of a small exhaust fan;
Fig. 10 is a graph of noise detection during operation of A, B two tank skid LNG power plants in the same environment.
In the figure: the air conditioning system comprises a 1-generating set box body, a 11-second heat radiation grille, a 12-first heat radiation grille, a 2-gasification zone, a 3-power zone, a 31-first box door, a 4-heat radiation zone, a 41-radiator, a 42-water tank, a 43-exhaust fan, a 44-first mounting opening, a 45-second double-door, a 46-exhaust grille, a 47-first air inlet, a 48-second air inlet, a 5-partition plate, a 51-metal support plate, a 52-connecting plate, a 53-heat insulation plate, a 54-flame retardant layer, a 55-external fixing plate, a 6-LNG storage tank, a 61-first connecting pipe, a 7-gasifier, a 71-second connecting pipe, an 8-motor, a 81-engine, a 811-first cooling liquid conveying pipe, a 812-second cooling liquid conveying pipe, a 422-third cooling liquid conveying pipe, a 9-large fan, a 91-fixing bracket, a 92-damper block, a 93-mute fan, a 94-fan top cover plate, a 95-connecting lug, a 96-connecting bolt, a 97-vent, a 10-partition plate, a 101-611-mounting hole, a 62-second pipe mounting hole, a 64-small fan, a 643-small exhaust fan, a screw section, a 643-small fan, and a screw-shaped mounting plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-9, a box prying type LNG generator set based on a separated water tank heat dissipation system comprises a generator set box 1, wherein the generator set box 1 comprises a gasification zone 2, a power zone 3 and a heat dissipation zone 4, a grid is arranged at the top of the gasification zone 2, a first double door is arranged at the side part of the gasification zone 2, and a first heat dissipation grid 12 is arranged on the first double door; the first heat radiation grille 12 is used for guaranteeing air circulation at the side part of the gasification zone 2 and reducing heat retention;
The gasification zone 2 and the power zone 3 are separated by a partition plate 5, and the partition plate 5 comprises a metal support plate 51, a connecting plate 52, a heat insulating plate 53, a flame retardant layer 54 and an external reinforcing plate 55; the connecting plate 52 is a metal connecting strip and is used for bearing the top and the bottom of the inner cavity of the generator set box body 1, and can be fixed with the generator set box body 1 through screws; the heat insulating plate 53 is preferably a vacuum heat insulating plate, and is used for insulating heat of the power zone 3 and reducing heat transfer of the power zone 3 to the gasification zone 2; the flame retardant layer 54 is preferably an industrial flame retardant plate, so that the use safety of the gasification zone 2 in the generator set box 1 is ensured;
The metal support plate 51, the heat insulation plate 53, the flame-retardant layer 54 and the external reinforcing plate 55 are sequentially and fixedly connected in a laminated manner, the upper end and the lower end of the metal support plate 51 are welded with the connecting plates 52, the width of the connecting plates 52 is larger than or equal to the sum of the thicknesses of the metal support plate 51, the heat insulation plate 53, the flame-retardant layer 54 and the external reinforcing plate 55, the connecting plates 52 are fixedly connected with the upper end and the lower end of the inner cavity of the generator set box body 1, the shapes and the sizes of the metal support plate 51, the heat insulation plate 53, the flame-retardant layer 54 and the external reinforcing plate 55 are the same, the metal support plate 51, the heat insulation plate 53, the flame-retardant layer 54 and the external reinforcing plate 55 can form the whole partition plate 5 after being combined, and the upper end and the lower end of the external reinforcing plate 55 can be fixed on the connecting plates 52 in a screw or welding manner;
The LNG storage tank 6 is arranged in the inner cavity of the gasification zone 2, the outer end of the LNG storage tank 6 is connected with the gasifiers 7 through the first connecting pipe 61, the number of the gasifiers 7 is not less than two, the gasifiers 7 are annularly arranged outside the LNG storage tank 6 in a surrounding mode, two adjacent gasifiers 7 are communicated through the first connecting pipe 61, the first connecting pipe 61 and the second connecting pipe 71 are respectively provided with a control valve, and the second connecting pipe 71 is provided with a pressure regulating metering device;
A motor 8 and an engine 81 are arranged in the inner cavity of the power area 3, and a second cooling liquid conveying pipe 812 and a first cooling liquid conveying pipe 811 are respectively connected with an inlet and an outlet of cooling liquid on the engine 81; the engine 81 radiates heat by the coolant flowing continuously in the coolant pipe; the end of the gasifier 7 is connected with the engine 81 through a second connecting pipe 71, a partition board 10 is arranged between the power area 3 and the heat dissipation area 4, a second mounting opening 62 and a pipeline hole 63 are formed in the partition board 10, and a small exhaust fan 64 is arranged in the second mounting opening 62. The upper end and the lower end of the partition plate 10 are fixedly provided with mounting plates 101, the mounting plates 101 are provided with mounting holes 611, and the mounting plates 101 can be fixedly connected with the upper side wall and the lower side wall of the inner cavity of the generator set box body 1 through the mounting holes 611. The mounting plate 101 and the generator set housing 1 can be fixed by inserting screws into the mounting holes 611, and the partition plate 10 can be fixed between the power section 3 and the heat dissipation section 4.
The number of the second mounting openings 62 is two, and the second mounting openings 62 are symmetrically distributed in the upper space of the partition board 10, and each second mounting opening 62 is provided with a small exhaust fan 64. The small exhaust fan 64 is a mute small fan, the small exhaust fan 64 is cylindrical, the middle part of the outer side wall is provided with a thread section 642, the thread section 642 is fixedly connected with the second mounting opening 62 through threads, one side of the thread section 642 is provided with a retainer ring 643, the small exhaust fan 64 is screwed into the second mounting opening 62 for mounting, the disassembly maintenance can be completed only by screwing during the disassembly, the two end faces of the small exhaust fan 64 are covered with cover plates 641, and the cover plates 641 are net-shaped breathable plates. The heat generated by the power area 3 influences the air temperature, hot air flows upwards and cold air sinks in the power area, a small exhaust fan 64 on the partition board 10 can drive hot air in the upper space of the power area 3 to flow into the heat dissipation area 4, the hot air is exhausted from the exhaust grille 46 along the heat dissipation area 4, meanwhile, cold air flow externally connected with the heat dissipation area enters the power area 3 through the heat dissipation grille on the first box door 31, so that cold and hot air flow exchange of the inner cavity of the power area 3 can be completed, and the circulation efficiency and the heat dissipation efficiency of air flow can be guaranteed;
The second coolant delivery pipe 812 and the first coolant delivery pipe 811 are respectively communicated with the water tank 42 and the radiator 41, and the water tank 42 and the radiator 41 are communicated with each other through the third coolant delivery pipe 422.
The front side of the power area 3 is provided with a first box door 31, and the first box door 31 is provided with a heat radiation grille. The heat dissipation area 4 outside of generating set box 1 is equipped with second bilateral door 45, install radiator 41 and water tank 42 on the heat dissipation area 4 lateral wall, the front and back side of generating set box 1 all is equipped with second heat dissipation grid 11, and the heat dissipation area 4 top of generating set box 1 is equipped with exhaust fan 43, be equipped with the cooling tube on the engine 81, cooling tube water inlet and delivery port are connected with radiator 41 and water tank 42 respectively, radiator 41 passes through the water pipe and communicates with water tank 42, and the position that heat dissipation area 4 is close to radiator 41 and water tank all is equipped with second heat dissipation grid 11, be used for the guarantee heat dissipation ventilation nature, radiator 41 tip is equipped with the water pump, drive rivers through the water pump and flow, through radiator 41 in proper order, the cooling tube on water tank 42 and the engine 81, can drive the air circulation of heat dissipation area 4 and power district 3 through exhaust fan 43 and little fan, and then can increase the radiating efficiency of radiator 41, and then can promote the radiating effect of power district 3, guarantee the heat dissipation of generating set box 1 inner chamber.
The front and rear surfaces of the heat dissipation area 4 are respectively provided with a first air inlet 47 and a second air inlet 48, the right end of the heat dissipation area 4 is provided with an exhaust grid 46, the side wall of the inner cavity of the heat dissipation area 4 is provided with a radiator 41 and a water tank 42, the top end of the heat dissipation area 4 is provided with a first mounting opening 44, and the first mounting opening 44 is provided with a large exhaust fan 9; the fixed bolster 91 is installed to big exhaust fan 9 inner chamber, and fixed mounting has silence fan 93 on the fixed bolster 91, is equipped with snubber block 92 between fixed bolster 91 and the big exhaust fan 9 inner chamber bottom, and snubber block 92 is elastic rubber piece, can reduce the vibrations that produce when silence fan 93 motor operation, and then can reduce the noise that produces when big exhaust fan 9 operates, ventilation hole 97 has all been seted up to the upper and lower both ends face of big exhaust fan 9. The upper end of the large exhaust fan 9 is connected with a fan top cover plate 94 through a hinge cover, the outer diameter of the upper end surface of the fan top cover plate 94 is equal to the inner diameter of the first mounting opening 44, namely, the fan top cover plate 94 is embedded in the top end surface of the heat dissipation area 4; the dust removal maintenance can be carried out on the large exhaust fan 9 by opening the fan top cover plate 94, and the operation is simple and convenient.
The side part of the bottom end of the large exhaust fan 9 is provided with a connecting support lug 95, and the connecting support lug 95 is fixedly connected with the top of the inner cavity of the heat dissipation area 4 through a connecting bolt 96.
The airflow direction driven by the large exhaust fan 9 is from inside to outside, and the airflow direction driven by the small exhaust fan 64 is from the power area 3 to the heat dissipation area 4.
The outer end of the heat dissipation area 4 is provided with a second double-door 45, and the outer side of the second double-door 45 is provided with an exhaust grating 46, and the exhaust grating 46 and the first heat dissipation grating 12 are arranged in bilateral symmetry.
Working principle: after the liquefied natural gas stored in the LNG storage tank 6 flows to the gasifier 7 through the first connecting pipe 61 for gasification, the liquefied natural gas flows into the engine 81 through the second connecting pipe 71 to provide a power source for the engine 81, the engine 81 takes away heat through cooling liquid on the surface, the cooling liquid after absorbing the heat flows into the radiator 41 through the water pipe, the radiator 41 is quickly cooled through the exhaust fan 43 and the radiating holes of the independent radiating area 4, the external cooling air is sucked through the radiating holes to take away the heat of the cooling liquid in the radiator 41, and the cooling liquid is discharged from the top through the exhaust fan 43, so that the radiating efficiency of the generator set can be greatly improved.
Experiment one:
In order to detect the heat radiation efficiency of the box-type LNG generator set based on the separated water tank heat radiation system, the original box-type LNG generator set is set as A group, the box-type LNG generator set based on the separated water tank heat radiation system is set as B group, and under the condition of 60% load, temperature sensors are placed at m1 point (water tank position), m2 point (diesel engine position) and m3 point (motor position) and n1, n2 and n3 points of the surfaces of the A, B groups of engines in the A, B groups of generator boxes to detect the temperature under the same environment, and the statistics of detection data are shown in the following table:
table 1A, B temperature detection statistics table of two kinds of generating sets under the same environment
According to the statistical data in Table 1, it can be obtained that after 2 hours of operation, the temperatures of m1 point, m2 and m3 in the group A engine are 76 ℃, 68 ℃, 66.5 ℃ respectively, and the temperatures of m1 point, m2 and m3 in the group B engine are 56 ℃, 57 ℃, 54 ℃, i.e. the temperature in the group B engine is far lower than the temperature in the group A engine; the temperatures of the n1, n2 and n3 points of the engine of the group A are 87 ℃ and 86.5 ℃ respectively, and the temperatures of the n1, n2 and n3 points of the engine of the group B are 72 ℃ and 73 ℃ respectively, namely the temperatures of the engine surfaces of the group B are far lower than those of the engine surfaces of the group A, so that the heat dissipation efficiency of the box-type LNG generator set based on the separated water tank heat dissipation system is far higher than that of the original box-type generator set.
Experiment II:
in order to detect noise generated when the box-type LNG generator set based on the separated water tank heat dissipation system operates, an original box-type generator set is set as a group A, the box-type LNG generator set based on the separated water tank heat dissipation system is set as a group B, volume data acquisition is carried out on X1 points and X2 points in a box when A, B groups of generators operate and Y1 points and Y2 points outside the box when A, B groups of generators operate under the same environment under the condition of 60% load, and the average value statistics of acquired data are shown in the following table:
table 2A, B noise detection statistics table for two box type diesel generator sets in same environment during operation
From the statistical data in table 2 and fig. 10, it can be obtained that after 30min of operation, the average values of the volume samples at the point X1 and the point X2 in the group a engines are 103db and 104db, respectively, and the average values of the volume samples at the point X1 and the point X2 in the group B engines are 95db and 96db, respectively, i.e. after 30min of operation, the noise generated in the group B engines is far lower than the noise generated in the group a engines; the average value of the volume sampling of the Y1 and Y2 points of the engine surface of the A group is 87db and the average value of the volume sampling of the Y2 points of the engine surface of the B group is 73db and 72db respectively, namely the noise generated by the engine surface of the B group is far lower than the noise generated by the engine surface of the A group, so that the noise generation decibel of the box-type LNG generator set based on the separated water tank heat radiation system is far lower than the noise generation decibel of the original box-type generator set.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Box sled formula LNG generating set based on disconnect-type water tank cooling system, including generating set box (1), its characterized in that: the power generation unit box body (1) comprises a gasification zone (2), a power zone (3) and a heat dissipation zone (4), wherein the gasification zone (2) and the power zone (3) are separated by a partition plate (5), the partition plate (5) comprises a metal support plate (51), a connecting plate (52), a heat insulation plate (53), a flame retardant layer (54) and an external fixing plate (55), an LNG storage tank (6) is arranged in an inner cavity of the gasification zone (2), and the outer end of the LNG storage tank (6) is connected with a gasifier (7) through a first connecting pipe (61);
The metal support plate (51), the heat insulation plate (53), the flame-retardant layer (54) and the external fixing plate (55) are sequentially stacked and fixedly connected, connecting plates (52) are welded at the upper end and the lower end of the metal support plate (51), the width of each connecting plate (52) is larger than or equal to the sum of the thicknesses of the metal support plate (51), the heat insulation plate (53), the flame-retardant layer (54) and the external fixing plate (55), and the connecting plates (52) are fixedly connected with the upper end and the lower end of an inner cavity of the generator set box body (1);
A motor (8) and an engine (81) are arranged in the inner cavity of the power area (3), and a second cooling liquid conveying pipe (812) and a first cooling liquid conveying pipe (811) are respectively connected with an inlet and an outlet of cooling liquid on the engine (81); the tail end of the gasifier (7) is connected with an engine (81) through a second connecting pipe (71);
A partition board (10) is arranged between the power area (3) and the heat dissipation area (4), a second mounting opening (62) and a pipeline hole (63) are formed in the partition board (10), and a small exhaust fan (64) is arranged in the second mounting opening (62); the small exhaust fan (64) is a mute small fan, the small exhaust fan (64) is cylindrical, a threaded section (642) is formed in the middle of the outer side wall, the threaded section (642) is fixedly connected with the second mounting opening (62) through threads, a retaining ring (643) is arranged on one side of the threaded section (642), cover plates (641) are covered on two end faces of the small exhaust fan (64), and the cover plates (641) are net-shaped breathable plates; mounting plates (101) are fixedly mounted at the upper end and the lower end of the partition plate (10), mounting holes (611) are formed in the mounting plates (101), and the mounting plates (101) can be fixedly connected with the upper side wall and the lower side wall of the inner cavity of the generator set box body (1) through the mounting holes (611);
The front and rear of the heat dissipation area (4) are respectively provided with a first air inlet (47) and a second air inlet (48), the right end of the heat dissipation area (4) is provided with an exhaust grid (46), the side wall of the inner cavity of the heat dissipation area (4) is provided with a radiator (41) and a water tank (42), the top end of the heat dissipation area (4) is provided with a first mounting opening (44), and the first mounting opening (44) is provided with a large exhaust fan (9);
the inner cavity of the large exhaust fan (9) is provided with a fixed bracket (91), the fixed bracket (91) is fixedly provided with a mute fan (93), a damping block (92) is arranged between the fixed bracket (91) and the bottom end of the inner cavity of the large exhaust fan (9), and the upper end face and the lower end face of the large exhaust fan (9) are provided with ventilation holes (97);
The number of the gasifiers (7) is not less than two, the gasifiers are annularly arranged outside the LNG storage tank (6) in a surrounding mode, and the adjacent gasifiers (7) are communicated through first connecting pipes (61); control valves are arranged on the first connecting pipe (61) and the second connecting pipe (71), and a pressure regulating metering device is arranged on the second connecting pipe (71);
The large exhaust fan (9) is positioned in the middle of the top end of the heat dissipation area (4), the upper end of the large exhaust fan (9) is connected with a fan top cover plate (94) through hinge cover, the outer diameter of the upper end surface of the fan top cover plate (94) is equal to the inner diameter of the first mounting opening (44), namely, the fan top cover plate (94) is embedded in the top end surface of the heat dissipation area (4); the side part of the bottom end of the large exhaust fan (9) is provided with a connecting support lug (95), and the connecting support lug (95) is fixedly connected with the top of the inner cavity of the heat dissipation area (4) through a connecting bolt (96).
2. The split tank heat removal system based tank skid LNG genset of claim 1 wherein: the top of the gasification zone (2) is provided with a grid, the side part of the gasification zone (2) is provided with a first double door, and a first heat radiation grid (12) is arranged on the first double door.
3. The split tank heat removal system based tank skid LNG genset of claim 1 wherein: the front side and the rear side of the generator set box body (1) are respectively provided with a second heat radiation grille (11), the top end of a heat radiation area (4) of the generator set box body (1) is provided with an exhaust fan (43), and the outer side of the heat radiation area (4) of the generator set box body (1) is provided with a second double-door (45).
4. The split tank heat removal system based tank skid LNG genset of claim 1 wherein: the number of the second mounting openings (62) is not less than two, the second mounting openings are symmetrically distributed in the upper space of the partition plate (10), and each second mounting opening (62) is provided with a small exhaust fan (64).
5. The split tank heat removal system based tank skid LNG genset of claim 1 wherein: the second cooling liquid conveying pipe (812) and the first cooling liquid conveying pipe (811) are respectively communicated with the water tank (42) and the radiator (41), and the water tank (42) is communicated with the radiator (41) through the third cooling liquid conveying pipe (422).
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201730663U (en) * | 2010-04-06 | 2011-02-02 | 无锡开普动力有限公司 | Cooling structure of generator set |
| CN204716420U (en) * | 2015-05-15 | 2015-10-21 | 南京优电电力设备有限公司 | Case sled formula natural gas generator group device |
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2021
- 2021-05-13 CN CN202110522429.7A patent/CN113137305B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201730663U (en) * | 2010-04-06 | 2011-02-02 | 无锡开普动力有限公司 | Cooling structure of generator set |
| CN204716420U (en) * | 2015-05-15 | 2015-10-21 | 南京优电电力设备有限公司 | Case sled formula natural gas generator group device |
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