CN112097107A - Mixed gasifier - Google Patents

Mixed gasifier Download PDF

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Publication number
CN112097107A
CN112097107A CN201910527598.2A CN201910527598A CN112097107A CN 112097107 A CN112097107 A CN 112097107A CN 201910527598 A CN201910527598 A CN 201910527598A CN 112097107 A CN112097107 A CN 112097107A
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CN
China
Prior art keywords
medium
air
gas
pipe
temperature
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Pending
Application number
CN201910527598.2A
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Chinese (zh)
Inventor
俞军
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Wuxi Phaeton Cryotech Co ltd
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Wuxi Phaeton Cryotech Co ltd
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Priority to CN201910527598.2A priority Critical patent/CN112097107A/en
Publication of CN112097107A publication Critical patent/CN112097107A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0397—Localisation of heat exchange characterised by fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to the field of gasifiers, in particular to a novel hybrid gasifier, which comprises a finned tube, an atomizing device and an air temperature tube; the atomization device is used for converting a liquid-phase medium into a mist-like medium; part of the atomized medium is sprayed on the heat radiating part of the air temperature pipe and is converted into a gas phase medium. The liquid phase medium is converted into the vaporous medium in the atomizing device, the function of converting the vaporous medium into the gas phase medium in the atomizing device is enabled to form an adjustable state by adjusting the flow or flow velocity of the flowing medium flowing into the air temperature pipe, and the rest vaporous medium is converted into the gas phase medium in the finned pipe, so that the contact area between the liquid phase medium and the finned pipe is increased, and the gasification efficiency of the gasifier can be ensured in working environments with large temperature difference or different processes; therefore, the technical problem that in the prior art, due to the fact that the pipe diameter of the finned pipe is small, the contact area of the liquid-phase medium and the finned pipe is small, and the heat exchange efficiency of the liquid-phase medium through the finned pipe is low is solved.

Description

Mixed gasifier
Technical Field
The invention relates to the field of gasifiers, in particular to a novel mixed gasifier.
Background
The gasifier is equipment for converting a liquid phase medium into a gas phase medium, wherein the air temperature type gasifier has a simple structure, and the core of the air temperature type gasifier is constructed by finned tubes connected in series. When liquid phase medium is pipetted from the inlet to the outlet of the finned tube, the liquid phase medium absorbs heat in the air through the tube wall and the fins of the finned tube, so that the temperature of the liquid phase medium is increased and then reaches the boiling point, and therefore the liquid phase medium is converted into a gas phase medium in the finned tube.
In the prior art, the pipe diameter of the finned tube is small, so that the contact area of the liquid phase medium and the finned tube is small, and the heat exchange efficiency of the liquid phase medium through the finned tube is low.
Disclosure of Invention
In order to solve the technical problem that in the prior art, the contact area of a liquid phase medium and a finned tube is small due to the small diameter of the finned tube, so that the heat exchange efficiency of the liquid phase medium passing through the finned tube 1 is low, the invention provides a novel mixed gasifier.
According to one aspect of the invention, a novel hybrid gasifier is provided, which comprises a finned tube, an atomization device and an air temperature tube, wherein the atomization device is arranged on the finned tube; the atomization device is used for converting a liquid-phase medium into a mist-shaped medium; the heat dissipation part of the air temperature pipe is arranged inside the atomization device, and pipe orifices at two ends of the air temperature pipe are respectively arranged outside the atomization device; and a part of the atomized medium is sprayed on the heat dissipation part of the air temperature pipe and is converted into a gas-phase medium.
Further, the atomization device comprises a two-fluid nozzle, an atomization cylinder and a gas-phase pressurization pipe, wherein the two-fluid nozzle is arranged in the atomization cylinder; the gas phase pressurization pipe and the finned tube are mutually isolated and are respectively communicated with the two-fluid nozzle, and the two ends of the atomization cylinder are respectively connected with the finned tube in a sealing manner in the flowing direction of the atomized medium sprayed by the two-fluid nozzle.
Further, the heat dissipation part of the air temperature pipe is in a spiral pipe shape, and the mist medium flows along the axial line direction of the spiral pipe-shaped air temperature pipe.
Furthermore, the heat dissipation part of the air temperature pipe is in a straight pipe shape, and the heat dissipation part of the air temperature pipe is provided with heat dissipation fins.
Furthermore, in the extending direction of the air temperature pipe, a plurality of radiating fins are arranged on the air temperature pipe in a dotted line shape; in the cross-sectional direction of the air temperature pipe 3, the fins are inclined with respect to the cross-sectional direction.
Further, the pipe orifice at the inlet end of the air temperature pipe is connected with a normal temperature air source through a pipeline.
Further, the normal temperature air source comprises a gas booster pump and normal temperature gas, and the normal temperature gas boosted by the gas booster pump is transmitted to the air temperature pipe through the pipeline.
Further, the normal temperature gas includes an inert gas or a dry exhaust gas.
Further, the pipe orifices at two ends of the air temperature pipe are respectively connected with a heat exchange device through the pipelines; and the gas which flows out of the air-temperature pipe and is lower than the air temperature is transmitted to the heat exchange device through the pipeline, and the gas heated by the heat exchange device is transmitted to the air-temperature pipe through the pipeline.
Further, a gas circulating pump is arranged between the pipeline and the heat exchange device; and the gas in the air temperature pipe circularly flows between the air temperature pipe and the heat exchange device through the gas circulating pump.
According to the novel hybrid gasifier provided by the invention, the liquid-phase medium is converted into the vaporous medium in the atomizing device, the function of converting the vaporous medium into the gas-phase medium in the atomizing device is enabled to form an adjustable state by adjusting the flow or flow velocity of the flowing medium flowing into the hollow thermotube, and the rest vaporous medium is converted into the gas-phase medium in the finned tube, so that the vaporous medium and the gas-phase medium are combined with each other for use, the contact area formed by the liquid-phase medium and the finned tube is increased, and the gasification efficiency of the gasifier can be ensured in working environments with large temperature difference or different processes; therefore, the technical problem that in the prior art, due to the fact that the pipe diameter of the finned pipe is small, the contact area of the liquid-phase medium and the finned pipe is small, and the heat exchange efficiency of the liquid-phase medium through the finned pipe is low is solved.
Drawings
FIG. 1 is a schematic structural diagram of a hybrid gasifier according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an atomizing device and an air temperature pipe provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an atomizing device and an air temperature pipe provided in an embodiment of the present invention;
FIG. 4 is a schematic structural view of a dual fluid nozzle provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hybrid gasifier according to an embodiment of the present invention.
Detailed Description
The invention provides a novel mixed gasifier, aiming at solving the technical problem that in the prior art, the contact area of a liquid-phase medium and a finned tube is small due to the small diameter of the finned tube, so that the heat exchange efficiency of the liquid-phase medium passing through the finned tube is low.
Referring to fig. 1, the novel hybrid gasifier comprises a finned tube 1, an atomization device 2 and an air temperature tube 3, wherein the atomization device 2 is arranged on the finned tube 1; the atomization device 2 is used for converting a liquid-phase medium into a mist-like medium; the heat dissipation part of the air temperature pipe 3 is arranged inside the atomizing device 2, and pipe orifices at two ends of the air temperature pipe 3 are respectively arranged outside the atomizing device 2; a part of the mist medium is sprayed to the heat radiating portion of the air heating pipe 3 and converted into a gas phase medium.
Wherein, the liquid phase medium flows into the atomization device 2 through the finned tube 1, and the atomization device 2 converts the liquid phase medium into a mist medium; a part of the atomized medium forms a heat exchange structure after the atomization device 2 contacts with the heat dissipation part of the air temperature pipe 3, so that the part of the atomized medium is converted into a gas-phase medium by absorbing heat from the air temperature pipe 3; the rest of the atomized medium enters the subsequent finned tube 1 from the atomization device 2, the rest of the atomized medium gradually contacts with the inner wall of the multi-section finned tube 1 to form a heat exchange structure, and the rest of the atomized medium is converted into a gas-phase medium by absorbing heat from the finned tube 1.
It should be understood that the air temperature pipe 3 should have a flowing medium therein, and the flowing medium should be a flowing medium at normal temperature according to the actual process requirements of the gasifier. The flowing medium may be dry gas or liquid substance which can be used for heat exchange and cannot be frozen into solid.
It should be understood that the liquid medium is in a low-temperature liquid state, and the mist medium is also in a low-temperature liquid state, and the difference between the two is: the liquid medium is a continuous whole formed by gathering a plurality of liquid particles, and the mist medium is liquid particles which are mutually dispersed.
It should be understood that, in addition to the atomizing device 2 for converting the liquid-phase medium into the mist-like medium, the first gasification functional zone of the hybrid novel gasifier (hereinafter referred to as gasifier) provided by the present invention is formed by the heat dissipation part of the air temperature tube 3 disposed in the atomizing device 2; similarly, the finned tube 1 (in particular the finned tube 1 connected to the outlet of the atomizing device 2) forms a second functional gasification zone of the gasifier; the difference between the two gasification functional zones is: in the first gasification functional zone with the atomizing device 2, the liquid-phase medium is first turned into mist and then heat-exchanged with the flowing medium from the air-warm tube 3 through the air-warm tube 3 inside the atomizing device 2, while in the second gasification functional zone with the finned tube 1, the mist-like medium flowing into the finned tube 1 is heat-exchanged with the outside air through the finned tube 1. Thus, the two gasification functional zones should be distinguished by the way they absorb heat. For example: in a region with a comparatively hot temperature, the temperature difference between the daytime air temperature and the nighttime air temperature is small, the flowing speed or the flow rate of the flowing medium in the air temperature pipe 3 is adjusted to reduce the speed or the flow rate of the flowing medium, so that the heat absorbed by the atomized medium through the air temperature pipe 3 can be reduced, and meanwhile, most of the atomized medium absorbs the external air heat through the finned pipe 1 (particularly the finned pipe 1 connected with the outlet of the atomizing device 2) and is converted into a gas-phase medium. For another example: in winter, the temperature in certain areas is below zero during the daytime and lower during the night, most of the vaporous medium is converted into a gas-phase medium through the finned tube 1, the conversion efficiency is quite unsatisfactory, and the common knowledge of the technicians in the field is required to be known; therefore, the flowing speed or the flowing quantity of the flowing medium in the air temperature pipe 3 is adjusted, so that the speed or the flowing quantity of the flowing medium is increased, the heat absorbed by the foggy medium through the air temperature pipe 3 can be increased, the foggy medium can be more converted into the gas-phase medium in the atomizing device 2, the foggy medium flowing into the finned tube 1 from the atomizing device 2 correspondingly tends to be reduced, and the efficiency of converting the foggy medium in the finned tube 1 into the gas-phase medium is increased.
Therefore, according to the novel hybrid gasifier provided by the invention, the liquid-phase medium is converted into the vaporous medium in the atomizing device, the function of converting the vaporous medium into the gas-phase medium in the atomizing device is enabled to form an adjustable state by adjusting the flow rate or flow velocity of the flowing medium flowing into the hollow warm tube, and the rest vaporous medium is converted into the gas-phase medium in the finned tube, and the vaporous medium and the gas-phase medium are combined with each other for use, so that the contact area between the liquid-phase medium and the finned tube is increased, and the gasification efficiency of the gasifier can be ensured in working environments with large temperature difference or different processes; therefore, the technical problem that in the prior art, due to the fact that the pipe diameter of the finned pipe is small, the contact area of the liquid-phase medium and the finned pipe is small, and the heat exchange efficiency of the liquid-phase medium through the finned pipe is low is solved.
Further, referring to fig. 2 or fig. 3, the atomizing device 2 includes a two-fluid nozzle 201, an atomizing barrel 202, and a gas pressure increasing conduit 203, the two-fluid nozzle 201 being disposed inside the atomizing barrel 202; the gas phase pressure increasing pipe 203 and the finned tube 1 are isolated from each other and are respectively communicated with the two-fluid nozzle 201, and two ends of the atomizing cylinder 202 are respectively connected with the finned tube 1 in a sealing manner in the flowing direction of the atomized medium sprayed by the two-fluid nozzle 201.
The two-fluid nozzle 201 is adopted as a main means for converting a liquid-phase medium into a mist-like medium; the liquid-phase medium flows into the two-fluid nozzle 201 from the finned tube 1, the gas-phase medium flows into the two-fluid nozzle 201 from the gas-phase pressure increasing pipe 203, and the liquid-phase medium and the gas-phase medium respectively flow in the two-fluid nozzle 201 in an isolated mode, but are merged in a cavity before being sprayed out of the two-fluid nozzle 201; when the gas pressure of the gas-phase medium satisfies the preset pressure of the two-fluid nozzle 201, the gas-phase medium pressurizes the liquid-phase medium, and the mixture of the gas-phase medium and the liquid-phase medium is converted into a mixture of the mist-like medium and the gas-phase medium after being sprayed from the two-fluid nozzle 201. The mixture of the atomized medium and the gaseous medium sprayed by the two-fluid nozzle 201, wherein the atomized medium can flow in the atomizing cylinder 202 together with the gaseous medium under the air pressure action of the gaseous medium due to small particles and light weight; a part of the atomized medium is sprayed on the air temperature pipe 3, and the part of the atomized medium is converted into a gas-phase medium by absorbing heat of the air temperature pipe 3 (the heat is from heat of a flowing medium in the air temperature pipe 3), so that the atomized medium in the atomization cylinder 202 tends to decrease, and the gas-phase medium in the atomization cylinder 202 tends to increase; when the liquid-phase medium is continuously converted into the mist-like medium and a part of the mist-like medium is continuously converted into the gas-phase medium in the atomizing cylinder 202, the gas-phase medium in the atomizing cylinder has sufficient air pressure, so that the mist-like medium in the atomizing cylinder 202 flows out of the atomizing cylinder 202 along with the gas-phase medium; in the subsequent finned tube 1 communicated with the atomizing cylinder 202, the mixture of the atomized medium and the gaseous medium flowing out of the atomizing cylinder 202 is gradually sprayed on the inner wall of the finned tube 1, and forms a heat exchange structure with the outside air through the finned tube 1, so that the atomized medium is converted into the gaseous medium after absorbing the heat of the air outside the finned tube 1 through the finned tube 1.
Referring to fig. 4, the two-fluid nozzle 201 includes a liquid phase flow chamber, a gas phase flow chamber and a nozzle hole, the gas phase pressure increasing pipe 203 is communicated with the gas phase flow chamber, the inlet of the finned tube is communicated with the liquid phase flow chamber, and the liquid phase flow chamber and the gas phase flow chamber are communicated with the outlet of the finned tube through the nozzle hole; when the gas pressure of the gas-phase medium is greater than the hydraulic pressure of the liquid-phase medium, the two-fluid nozzle 201 converts the mixture of the gas-phase medium and the liquid-phase medium into a mixture of the gas-phase medium and the mist-like medium.
Further, referring to fig. 3, the heat radiating portion of the air-temperature tube 3 has a spiral tube shape, and the mist-like medium flows along the axial line direction of the spiral tube-like air-temperature tube 3.
Wherein the heat radiating part of the air temperature pipe 3 is a finned tube 1 arranged in the atomizing device 2; the heat dissipation part arranged on the air temperature pipe 3 is set to be spiral, so that the heat dissipation area of the air temperature pipe 3 in the atomizing device 2 can be enlarged, more mist-shaped media can be converted into gas-phase media after being sprayed on the spiral heat dissipation part, and the conversion efficiency of the mist-shaped media converted into the gas-phase media in the atomizing device 2 is improved. The spiral structure of the heat radiating portion forms a through region in the axial direction, so that the mist medium can flow along the through region, and the mist medium and the spiral heat radiating portion form a heat exchange structure in sequence in the atomizing device 2. The both ends mouth of pipe of setting empty temperature pipe 3 outside atomizing device 2 can set up devices such as flange part or valve on it, and wherein, the flange part is convenient for with other pipe connection that have the flange to flowing medium enters into the inside of empty bowl pipe through the pipeline that has the flange, can also be convenient for have the pipeline of flange simultaneously and empty equipment and the dismantlement between the temperature pipe 3.
Preferably, referring to fig. 2, the heat radiating portion of the air-temperature tube 3 is a straight tube, and the heat radiating portion of the air-temperature tube 3 is provided with heat radiating fins 301.
The air-warming tube 3 is provided with the heat radiation fins 301, which can increase the heat radiation area of the air-warming tube 3 in the atomizing device 2. When the mist medium is sprayed on the radiating fins 301 and the air-temperature tubes 3, the heat exchange area formed by the mist medium passing through the radiating fins 301 and the air-temperature tubes 3 is larger than the heat exchange area formed by the mist medium passing through the air-temperature tubes 3, so that the mist medium can be better converted into the gas-phase medium in the atomizing device 2, and the conversion efficiency of the mist medium into the gas-phase medium in the atomizing device 2 is improved.
It should be understood that, the number of the air-temperature tubes 3 in the atomizing device 2 may be set to be plural, which can further enlarge the heat dissipation area of the air-temperature tubes 3 in the atomizing device 2, so that more mist-like medium can be converted into the gas-phase medium after being sprayed on the plural air-temperature tubes 3, and the conversion efficiency of the mist-like medium into the gas-phase medium in the atomizing device 2 is improved.
It should be understood that the plurality of air-temperature tubes 3 in the atomizing device 2 can be simply formed by arranging a plurality of straight tubular air-temperature tubes 3, and each straight tubular air-temperature tube 3 penetrates through the atomizing device 2, and the tube openings at the two ends of each straight tubular air-temperature tube 3 are arranged outside the atomizing device 2, and all the tube openings at the same side of the plurality of straight tubular air-temperature tubes 3 need to be communicated with the external pipeline 401 for conveying the flowing medium in a parallel connection manner. And, the plurality of air temperature tubes 3 in the atomizing device 2 may be configured to have a plurality of complex structures with serial or parallel flow cavities, as long as two pipe orifices (here, inlets and outlets of all serial or parallel flow cavities) of the plurality of air temperature tubes 3 are extended and disposed outside the atomizing device 2, so that the plurality of air temperature tubes 3 are communicated with the external pipeline 401 for conveying the flowing medium.
Further, on the basis of the above-described configuration having the fins 301, referring to fig. 2, in the extending direction of the air-temperature tube 3, a plurality of fins 301 are provided in a dotted line shape on the air-temperature tube 3; in the cross-sectional direction of the air temperature tube 3, the fins 301 are inclined with respect to the cross-sectional direction.
When the novel hybrid atomizer provided by the present invention is actually used, if the atomized medium is excessively sprayed on the fins 301, the atomized medium may be gathered due to the excessive atomized medium and may be converted into a liquid phase medium again. In order to avoid the phenomenon of converting into the liquid-phase medium again, the original radiating fins 301 are broken, so that the multiple sections of radiating fins 301 are in a dotted line shape, and the total amount of the mist-shaped medium sprayed on the radiating fins 301 can be reduced; and the cooling fins 301 are arranged into an inclined device, so that a flowing through cavity is formed between two adjacent cooling fins 301, and a part of the mist-like medium can pass through the flowing through cavity, thereby further reducing the total amount of the mist-like medium sprayed on the fins.
Further, on the basis of all the above solutions, referring to fig. 5, the nozzle at the inlet end of the air-temperature pipe 3 is connected with a normal-temperature air source 402 through a pipeline 401.
It is known that when the vaporizer is operated for a long time, the finned tube 1 of the vaporizer main body is cooled to a low temperature, so that the vaporization efficiency of the vaporizer is lowered due to the freezing phenomenon.
In the scheme, the flowing medium in the air-temperature tube 3 is provided by an external normal-temperature air source 402, and the flowing medium from the normal-temperature air source 402 is transmitted into the air-temperature tube 3 through a pipeline 401, and the mist medium and the flowing medium form a heat exchange structure through the air-temperature tube 3; as the flowing medium continuously flows into the air temperature pipe 3 through the pipeline 401', the temperature of the flowing medium is kept balanced, and the mist medium approximately exchanges heat with the normal temperature air; in the vaporizer in the prior art, the finned tubes are in direct contact with the ambient air, and if the air circulation is not smooth, the temperature of the air around the finned tubes is lower than that of the 'normal-temperature air', so that the vaporization efficiency of the vaporizer in the prior art is further influenced.
Further, referring to fig. 5, the normal temperature gas source 402 includes a gas booster pump and a normal temperature gas, and the normal temperature gas boosted by the gas booster pump is transmitted to the air temperature pipe 3 through a pipeline 401.
If the pipeline 401 is connected with the air-temperature pipe 3 in an open circuit manner, normal temperature gas flows into the air-temperature pipe 3 from the gas booster pump through the pipeline 401 under the boosting action of the gas booster pump, and is exhausted from the air-temperature pipe 3 to the outside of the atomization device 2, and in the scheme, the normal temperature gas is nontoxic and harmless and does not contain water vapor; and if the pipeline 401 is connected to the air temperature pipe 3 in a closed circuit, the normal temperature gas flows into the air temperature pipe 3 through the pipeline 401 from the gas booster pump under the boosting action of the gas booster pump, flows out of the air temperature pipe 3 through the pipeline 401, and the gas flowing out of the air temperature pipe 3 is collected by the gas collecting device and is delivered to the gas booster pump again through the gas collecting device to form a closed circuit.
Preferred ambient gases include inert gases or dry exhaust gases; for example: nitrogen, or off-gases generated by other devices during operation near the gasifier operating area, which should not contain water vapor.
Further, pipe orifices at two ends of the air-temperature pipe 3 are respectively connected with a heat exchange device (not shown in the figure) through a pipeline 401;
the gas flowing out of the air-temperature pipe 3 and lower than the air temperature is transmitted to the heat exchange device through the pipeline 401, and the gas heated by the heat exchange device is transmitted to the air-temperature pipe 3 through the pipeline 401.
After the normal-temperature gas in the air-temperature tube 3 passes through the air-temperature tube 3 and forms a heat exchange structure with the mist medium, the temperature of the normal-temperature gas is reduced, and a low-temperature gas is formed. The low-temperature gas can be used as one of cold sources and can be transmitted into a heat exchange device far away from the gasifier for heat exchange; the low-temperature gas absorbs heat through the heat exchange device and then forms normal-temperature gas again; the normal temperature gas flows into the air-temperature tube 3 again through the pipeline 401 by the heat exchange device, so that the normal temperature gas and the mist medium form a heat exchange structure again through the air-temperature tube 3.
Preferably, a gas circulating pump (not shown in the figure) is arranged between the pipeline 401 and the heat exchange device; the gas in the air-temperature pipe 3 circularly flows between the air-temperature pipe 3 and the heat exchange device through the gas circulating pump.
The gas circulating pump is mainly used for pressurizing gas in a flow cavity formed by the air temperature pipe 3, the pipeline 401 and the heat exchange device, so that an inlet and an outlet of the gas circulating pump are respectively communicated with the flow cavity. The gas pressurized by the gas circulation pump can be circulated between the air-warming tube 3 and the heat exchanger through the pipe 401.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The novel hybrid gasifier is characterized by comprising a finned tube, an atomizing device and an air temperature tube, wherein the atomizing device is arranged on the finned tube;
the atomization device is used for converting a liquid-phase medium into a mist-shaped medium;
the heat dissipation part of the air temperature pipe is arranged inside the atomization device, and pipe orifices at two ends of the air temperature pipe are respectively arranged outside the atomization device;
and a part of the atomized medium is sprayed on the heat dissipation part of the air temperature pipe and is converted into a gas-phase medium.
2. A gasifier in accordance with claim 1 wherein said atomizing means comprises a two-fluid nozzle, an atomizing cartridge, and a gas phase plenum, said two-fluid nozzle disposed within said atomizing cartridge; the gas phase pressurization pipe and the finned tube are mutually isolated and are respectively communicated with the two-fluid nozzle, and the two ends of the atomization cylinder are respectively connected with the finned tube in a sealing manner in the flowing direction of the atomized medium sprayed by the two-fluid nozzle.
3. A gasifier according to claim 2, wherein the heat dissipation part of the air-temperature tube has a spiral tube shape, and the atomized medium flows along an axial line direction of the spiral tube-shaped air-temperature tube.
4. A vaporizer according to claim 2, wherein the heat radiating portion of the air-temperature tube is in the form of a straight tube, and wherein heat radiating fins are provided on the heat radiating portion of the air-temperature tube.
5. A gasifier in accordance with claim 4, wherein a plurality of said fins are provided on said air-warming tube in an imaginary line in an extending direction of said air-warming tube;
in the cross-sectional direction of the air temperature pipe 3, the fins are inclined with respect to the cross-sectional direction.
6. A gasifier according to any one of claims 1 to 5, wherein the orifice at the inlet end of the air-temperature pipe is connected to a source of ambient air via a pipeline.
7. The gasifier according to claim 6, wherein the normal temperature gas source comprises a gas booster pump and a normal temperature gas, and the normal temperature gas boosted by the gas booster pump is transmitted to the air temperature pipe through the pipeline.
8. A gasifier in accordance with claim 7 wherein said ambient gas comprises an inert gas or a dry off-gas.
9. A gasifier according to any one of claims 1 to 5, wherein the pipe orifices at two ends of the air-temperature pipe are respectively connected with a heat exchange device through the pipelines;
and the gas which flows out of the air-temperature pipe and is lower than the air temperature is transmitted to the heat exchange device through the pipeline, and the gas heated by the heat exchange device is transmitted to the air-temperature pipe through the pipeline.
10. A gasifier in accordance with claim 9 wherein a gas circulation pump is disposed between said conduit and said heat exchange means; and the gas in the air temperature pipe circularly flows between the air temperature pipe and the heat exchange device through the gas circulating pump.
CN201910527598.2A 2019-06-18 2019-06-18 Mixed gasifier Pending CN112097107A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023156934A1 (en) * 2022-02-17 2023-08-24 Bennamann Services Ltd Systems and methods for vaporization of a liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023156934A1 (en) * 2022-02-17 2023-08-24 Bennamann Services Ltd Systems and methods for vaporization of a liquid

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