CN102099088A - Gasoline vapor recovery device - Google Patents

Gasoline vapor recovery device Download PDF

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Publication number
CN102099088A
CN102099088A CN2008801304543A CN200880130454A CN102099088A CN 102099088 A CN102099088 A CN 102099088A CN 2008801304543 A CN2008801304543 A CN 2008801304543A CN 200880130454 A CN200880130454 A CN 200880130454A CN 102099088 A CN102099088 A CN 102099088A
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CN
China
Prior art keywords
gasoline vapour
gasoline
adsorption
pump
vapour
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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.)
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CN2008801304543A
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Chinese (zh)
Inventor
吉田亮
谷村泰宏
杉本猛
福原启三
田中�明
关谷胜彦
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Mitsubishi Electric Corp
Tatsuno Corp
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Mitsubishi Electric Corp
Tatsuno Corp
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Application filed by Mitsubishi Electric Corp, Tatsuno Corp filed Critical Mitsubishi Electric Corp
Priority to CN201510813391.3A priority Critical patent/CN105536280A/en
Publication of CN102099088A publication Critical patent/CN102099088A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/002Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D5/00Condensation of vapours; Recovering volatile solvents by condensation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D5/00Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0027Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
    • B01D5/003Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium within column(s)
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03Fuel tanks
    • B60K15/035Fuel tanks characterised by venting means
    • B60K15/03504Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06Details or accessories
    • B67D7/76Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2257/00Components to be removed
    • B01D2257/70Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702Hydrocarbons

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Treating Waste Gases (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

The invention provides a gasoline vapor recovery device which restrains the vertical movement of heat generated by each device in a frame. The gasoline vapor recovery device (100) is characterized in that a condensing tower (2) and an adsorption/desorption tower (4) are arranged above a gasoline vapor pump (1) and a desorption pump (5) in a frame (120).

Description

The gasoline vapour retracting device
Technical field
The present invention relates to reclaim the gasoline vapour retracting device of the gasoline (hereinafter referred to as gasoline vapour) of gasification.
Background technology
The fuel tank internal of motor vehicle is stored gasoline liquid in the bottom, have gasoline vapour to exist with saturation state on top.When in the gas station when fuel tank is supplied with gasoline, the gasoline vapour that is present in the fuel tank is evicted from from oil-feed port, discharges in atmosphere.Like this,, then become the reason of photochemical fog in atmosphere, develop into problem human body or environment generation adverse effect if gasoline vapour is kept intact and discharged.Therefore, exploitation has now proposed various technical schemes (for example with reference to patent documentation 1~3) to the gasoline vapour retracting device that gasoline vapour reclaims, cools off, utilizes.
Gasoline vapour by the recovery of gasoline vapour retracting device, by the gasoline vapour condenser pipe cooling of the inside conducting of the condensing tower (gasoline vapour condensing container) that will fill anti-icing fluid (for example refrigerating medium (propane diols etc.) or gasoline, the such petroleum series material of kerosene), and be discharged.When being discharged, produce dewfall around the pipe arrangement of conducting being used to discharge with this state.To this, for example considered that the row of making is to the method for the temperature rising of atmospheric air by gasoline vapour and row by the high temperature of pump pressurization are carried out heat exchange to the air (air that contains the gasoline vapour that is not recovered some amounts of be left) of the low temperature of atmosphere.
Patent documentation 1: No. 3843271 communique of Japan Patent (the 7th~9 page, Fig. 1)
Patent documentation 2: TOHKEMY 2005-177563 communique (the 5th~10 page, Fig. 1)
Patent documentation 3: TOHKEMY 2006-198604 communique (the 4th~7 page, Fig. 2)
Summary of the invention
The problem that invention will solve
But, in order to prevent in above-mentioned method, to produce dewfall, must establish heat exchanger in addition, not only increased product cost, also increased the restriction that pipe arrangement is handled.In addition, because arranging the gasoline vapour that contains some amounts in the air of atmosphere, so the air discharge that is mixed with combustible component flow into for example the electric component zone of gasoline vapour retracting device (hereinafter referred to as non-explosion-proof area), this is unfavorable.In addition, at row's also residual composition that the gasoline foul smell of trace is arranged in the air of atmosphere,, bring sense of discomfort also can for the user in the gas station because these compositions disperse.
And then, if at the gasoline vapour retracting device adsorption-desorption tower is set, uses the adsorbent (for example silica gel or zeolite, active carbon etc.) that is filled into this adsorption-desorption tower to reclaim the words of the gasoline vapour retracting device of gasoline vapour, then will be the time by adsorbent gasolene ingredient desorb, be taken into air from the outside of gasoline vapour retracting device, when in the air of this desorb purposes, sneaking into the gasolene ingredient of discharging, the gasolene ingredient that can adhere to unnecessary amount on adsorbent makes the performance of adsorbent reduce.
The present invention makes in order to solve above-mentioned problem, and its first order provides the gasoline vapour retracting device that the above-below direction of the heat that inhibition produces from each equipment that is accommodated in the framework moves.Beyond first purpose, its second purpose provides and prevents the gasoline vapour retracting device to the pipe arrangement dewfall of atmosphere air row.In addition, beyond first purpose and second purpose, its 3rd purpose provides and suppresses the gasoline vapour retracting device that gasoline foul smell composition disperses.And then beyond first purpose, second purpose and the 3rd purpose, its 4th purpose provides air the gasoline vapour retracting device that be used for desorb inhaled air can not mix of row to atmosphere.
Solve the means of problem
Gasoline vapour retracting device of the present invention is characterized in that, described gasoline vapour retracting device has: gasoline vapour pump, this gasoline vapour pump attract from the gasoline vapour of fuel tank discharge; Condensing tower, this condensing tower is filled refrigerating medium in inside, the gasoline vapour that cooling is attracted by described gasoline vapour pump; The gasoline vapour that adsorption-desorption tower, this adsorption-desorption tower utilize adsorbents adsorb to be attracted by described gasoline vapour pump is with the gasoline vapour desorb that is adsorbed in the described adsorbent; Separate and smoke pump, this is separated and smokes pump and supply with to separate to described adsorption-desorption tower and smoke air; And framework, this framework is taken in described gasoline vapour pump, described condensing tower, described adsorption-desorption tower and described separating and is smoked pump in inside; In described framework, described condensing tower and described adsorption-desorption tower are configured in than described gasoline vapour pump and described separating and smoke the position of pump by the top.
The effect of invention
According to gasoline vapour retracting device of the present invention, can suppress the moving of above-below direction of the heat that produces from each equipment that is accommodated in the framework, can realize the raising of gasoline vapour organic efficiency.
Description of drawings
Fig. 1 is the signal pie graph that the loop of the gasoline vapour retracting device integral body of expression embodiment constitutes.
Fig. 2 is the schematic diagram of an example of the configuration of expression gasoline vapour retracting device.
Fig. 3 is another routine schematic diagram of the configuration of expression gasoline vapour retracting device.
Fig. 4 is the schematic diagram of another example of the configuration of expression gasoline vapour retracting device.
Description of reference numerals
1: gasoline vapour pump, 2: condensing tower, 3: gas-liquid separator, 4a: adsorption-desorption tower, 4b: adsorption-desorption tower, 5: separate and smoke pump, 6: refrigerator, 7: refrigerating medium, 8: coolant pump, 9a: adsorbent, 9b: adsorbent, 10: outlet, 11: air entry, 12: refrigerant temperature detector, 13a: adsorbent cooler, 13b: adsorbent cooler, 22: the first magnetic valves, 24: gasoline condenser, 26a: second magnetic valve, 26b: second magnetic valve, 27a: the 3rd magnetic valve, 27b: the 3rd magnetic valve, 28: the first pressure-reducing valves, 29: gasoline absorption is used pipe arrangement, 30: open and close valve, 31: the second pressure-reducing valves, 32a: the 4th magnetic valve, 32b: the 4th magnetic valve, 33a: the 5th magnetic valve, 33b: the 5th magnetic valve, 35: gasoline is separated and is smoked pipe arrangement, 36: arrange to the atmosphere pipe arrangement 41: compressor, 42: condenser, 43: throttling arrangement, 44: refrigerant evaporator, 45: refrigerant piping, 46: blower fan, 54: refrigerating medium pipe arrangement, 55: liquid level meter, 100: the gasoline vapour retracting device, 101: gasoline meter, 102: fuel oil supply nozzle, 110: air gap, 111: top panel, 112: the refrigerator panel, 113: air gap panel, 114: side frame, 115: side frame, 116: condensing tower and adsorption-desorption tower panel, 117: separate and smoke the pump panel, 118: gasoline vapour pump panel, 119: base plate, 120: framework, 121: the basis is set, 122: type mine pit in the island, 125: non-explosion-proof area, A: gasoline vapour condensation loop, A 1: gasoline vapour absorption loop, A 2: gasoline vapour desorb loop, B: refrigerant loop, C: refrigerating medium loop.
The specific embodiment
Below, based on accompanying drawing embodiments of the present invention are described.
Fig. 1 is the signal pie graph that the loop of gasoline vapour retracting device 100 integral body of expression embodiment of the present invention constitutes.Based on Fig. 1 the loop formation of gasoline vapour retracting device 100 is described.This gasoline vapour retracting device 100 is with the condensing tower cooling and reclaim the gasoline vapour that is attracted, and be provided with absorption or two adsorption-desorption towers of desorb gasoline vapour, suitably switch the effect of these two adsorption-desorption towers, gasoline vapour is reclaimed (absorption) and utilizes (desorb) again.In addition, comprise Fig. 1 interior, in following accompanying drawing, the magnitude relationship of each component parts magnitude relationship with reality sometimes is different.
Gasoline vapour retracting device 100 is arranged on gas station etc. together with the gasoline meter 101 that is used for to supply gasoline such as motor vehicles.In addition, gasoline vapour retracting device 100 reclaims the gasoline vapour of oil-feed port row to atmosphere from motor vehicle etc., utilizes again.This gasoline vapour retracting device 100 is divided into substantially by gasoline vapour condensation loop A, refrigerant loop B and refrigerating medium loop C and constitutes.In addition, this gasoline vapour condensation loop A is by gasoline vapour absorption loop A 1With gasoline vapour desorb loop A 2Constitute.
[gasoline vapour absorption loop A 1]
Gasoline vapour absorption loop A by adsorption-desorption tower 4a adsorbed gasoline steam the time 1By utilizing gasoline absorption with pipe arrangement 29 and arrange and connect fuel oil supply nozzle 102, first magnetic valve 22, gasoline vapour pump 1, gasoline condenser 24, gas-liquid separator 3, the second magnetic valve 26a, adsorption-desorption tower 4a, the 3rd magnetic valve 27a, first pressure-reducing valve 28, outlet 10 to atmosphere successively with pipe arrangement 36 and constitute.
Gasoline vapour absorption loop A by adsorption-desorption tower 4b adsorbed gasoline steam the time 1Constitute by utilizing gasoline absorption to connect fuel oil supply nozzle 102, first magnetic valve 22, gasoline vapour pump 1, gasoline condenser 24, gas-liquid separator 3, the second magnetic valve 26b, adsorption-desorption tower 4b, the 3rd magnetic valve 27b, first pressure-reducing valve 28, outlet 10 successively with pipe arrangement 29.That is, switching by controlling the second magnetic valve 26a and the second magnetic valve 26b and the switching of the 3rd magnetic valve 27a and the 3rd magnetic valve 27b are with an adsorbed gasoline steam among adsorption-desorption tower 4a or the adsorption-desorption tower 4b.
Therefore, gasoline vapour retracting device 100 is by above-mentioned each magnetic valve of control, an adsorption-desorption tower as the adsorbed gasoline steam among adsorption-desorption tower 4a or the adsorption-desorption tower 4b is played a role, another desorber as the desorb gasoline vapour is played a role.In addition, the switching of adsorption-desorption tower 4a and adsorption-desorption tower 4b can be carried out in the time interval in accordance with regulations, perhaps carries out according near the gasoline vapour concentration the outlet of the tower that plays a role as adsorption tower.
Gasoline meter 101 metering supplies to the gasoline of motor vehicle etc.Fuel oil supply nozzle 102 is being inserted in the oil-feed port of motor vehicle etc. when gasoline meter 101 is supplied with gasoline.This fuel oil supply nozzle 102 also has the effect of the inlet when attracting from the gasoline vapour of oil-feed port row to atmosphere.At this, be that example is represented with the situation that a fuel oil supply nozzle 102 is set, but the number that is provided with of fuel oil supply nozzle 102 is not particularly limited.First magnetic valve 22 has the effect that prevents from the gasoline vapour adverse current of fuel oil supply nozzle 102 attractions.This first magnetic valve 22 can be according to fuel oil supply nozzle 102 number setting is set.
Gasoline vapour pump 1 is from fuel oil supply nozzle 102 attractions, repressuring gasoline steam.Gasoline condenser 24 is located in the condensing tower 2 of gasoline vapour condensing container etc., and cooling and condensation liquefaction are at the gasoline vapour of inner conducting.At this, constituting spiral helicine situation with gasoline condenser 24 is that example is represented, but is not limited thereto.Gas-liquid separator 3 separates liquified petroleum and gasoline vapour by catching the gasoline of condensation liquefaction.In addition, as shown in Figure 1, also can in the pipe arrangement that makes the liquified petroleum conducting that separates by gas-liquid separator 3, open and close valve 30 be set.
The second magnetic valve 26a and the second magnetic valve 26b open and close by control, and conducting or not conducting contain the air at condensing tower 2 unrenewable gasoline vapours.Adsorption-desorption tower 4a and adsorption-desorption tower 4b have as the effect of the adsorption tower of adsorbed gasoline steam with as the effect of the desorber of desorb gasoline vapour.In the inside of adsorption-desorption tower 4a adsorbent cooler 13a described later and adsorbent 9a are set.In the inside of adsorption-desorption tower 4b adsorbent cooler 13b described later and adsorbent 9b are set too.
Adsorbent cooler 13a has by the effect that is filled in the refrigerating medium 7 cooling adsorption-desorption tower 4a inside in the condensing tower 2.Adsorbent cooler 13b also has by the effect that is filled in the refrigerating medium 7 cooling adsorption-desorption tower 4b inside in the condensing tower 2 equally with adsorbent cooler 13a.That is,, can carry out the absorption of gasoline vapour with a spot of adsorbent 9a and adsorbent 9b by adsorbent cooler 13a and adsorbent cooler 13b being set at adsorption-desorption tower 4a and adsorption-desorption tower 4b.
Adsorbent 9a and adsorbent 9b adsorbed gasoline steam from the air that contains gasoline vapour for example by being adsorbed on the gasoline vapour that contains in the air, forms the air that contains the following gasoline vapour of average 1vol%.As this adsorbent 9a and adsorbent 9b, for example can use silica gel or zeolite, active carbon etc.That is, at adsorbent 9a or the adsorbent 9b adsorbed gasoline steam of adsorption-desorption tower 4a or adsorption-desorption tower 4b, by the adsorbent 9a or the adsorbent 9b desorb gasoline vapour of another adsorption-desorption tower.Then, alternately switch absorption and desorb, become and to turn round continuously.
The 3rd magnetic valve 27a and the 3rd magnetic valve 27b open and close by control, by the air behind among adsorption-desorption tower 4a or the adsorption-desorption tower 4b and then conducting or the not conducting adsorbed gasoline steam.Air behind first pressure-reducing valve, 28 decompression process adsorption-desorption tower 4a or the adsorption-desorption tower 4b.Outlet 10 is being discharged in the atmosphere with the air that pipe arrangement 36 arrives to atmosphere in 28 decompressions of first pressure-reducing valve and by means of row.Gasoline absorption is pipe arrangements that conducting contains the air of gasoline vapour with pipe arrangement 29.In addition, each magnetic valve is controlled by the controlling organization (omitting diagram) of microcomputer etc.The pipe arrangement of the air of row after atmosphere is gasoline vapour absorption among conducting adsorption-desorption tower 4a or the adsorption-desorption tower 4b with pipe arrangement 36.
[gasoline vapour desorb loop A 2]
Gasoline vapour desorb loop A by adsorption-desorption tower 4b desorb gasoline vapour the time 2 Smoke pipe arrangement 35 and connect air entry 11, second pressure-reducing valve 31, the 4th magnetic valve 32b, adsorption-desorption tower 4b, the 5th magnetic valve 33b successively and conciliate and smoke pump 5 and constitute by separating with gasoline.On the other hand, the gasoline vapour desorb loop A by adsorption-desorption tower 4b adsorbed gasoline steam the time 2 Smoke pipe arrangement 35 and connect air entry 11, second pressure-reducing valve 31, the 4th magnetic valve 32a, adsorption-desorption tower 4a, the 5th magnetic valve 33a successively and conciliate and smoke pump 5 and constitute by separating with gasoline.
By basis and gasoline vapour absorption loop A 1In the control of each magnetic valve the switching of the 4th magnetic valve 32a and the 4th magnetic valve 32b and the switching of the 5th magnetic valve 33a and the 5th magnetic valve 33b are controlled, by an adsorption-desorption tower desorb gasoline vapour among adsorption-desorption tower 4a and the adsorption-desorption tower 4b.That is, by to gasoline vapour desorb loop A 2Each magnetic valve and gasoline vapour absorption loop A 1Each magnetic valve control in the lump, can suitably switch the effect of adsorption-desorption tower 4a and the effect of adsorption-desorption tower 4b.
Air entry 11 is taken into the air that is used for the desorb gasoline vapour from extraneous air.31 pairs of air that are taken into from air entry 11 of second pressure-reducing valve reduce pressure.The 4th magnetic valve 32a and the 4th magnetic valve 32b have by control and open and close conducting or the not conducting effect by the air of second pressure-reducing valve, 31 decompressions.Constitute gasoline vapour desorb loop A 2Adsorption-desorption tower 4b, the desorber as the desorb gasoline vapour plays a role as mentioned above.In addition, adsorption-desorption tower 4a and adsorption-desorption tower 4b are same, are constituting gasoline vapour desorb loop A 2The time, play a role as the desorber of desorb gasoline vapour.
The 5th magnetic valve 33a and the 5th magnetic valve 33b have by control to open and close conducting or can not conducting contain the effect of the air of gasoline vapour.Separate and smoke pump 5 and have in order to smoke that air supplies to adsorption-desorption tower 4b or adsorption-desorption tower 4a and the effect that attracts air by means of air entry 11 from extraneous air separating.Gasoline is separated and smoked pipe arrangement 35 is conducting air or the pipe arrangement that contains the air of gasoline vapour.This gasoline is separated and is smoked pipe arrangement 35 and adsorb loop A at gasoline vapour 1First magnetic valve 22 and the gasoline between the gasoline vapour pump 1 absorption connect with pipe arrangement 29.
[refrigerant loop B]
Refrigerant loop B carries on refrigerator 6, constitutes as connecting the heat pump cycle of compressor 41, condenser 42, throttling arrangement 43 and refrigerant evaporator 44 successively with refrigerant piping 45.That is, refrigerant loop B circulates this cold-producing medium by conducting cold-producing medium in refrigerant piping 45 in each constitution equipment, and cooling is filled in the refrigerating medium 7 in the condensing tower 2.In addition, near condenser 42, be provided for blower fan 46 to condenser 42 air fed fans etc.
Compressor 41 inlet flows compress this cold-producing medium and make it become the state of high temperature, high pressure through the cold-producing medium of refrigerant piping 45.The condensation heat of condenser 42 refrigerant emissions, this cold-producing medium of condensation liquefaction.Throttling arrangement 43 is made of pressure-reducing valve or electronic type exapnsion valve, temp. type exapnsion valve, capillary etc., and this cold-producing medium that reduces pressure makes its exapnsion.Refrigerant evaporator 44 obtains heat (that is, cooling refrigerating medium 7) from refrigerating medium 7, makes this cold-producing medium evaporation gasification.In addition, refrigerant loop B the cold-producing medium that can use be not particularly limited, which type of cold-producing medium all can use.
[refrigerating medium loop C]
Refrigerating medium loop C constitutes by connected condensing tower 2, coolant pump 8, adsorbent cooler 13a and adsorbent cooler 13b successively by refrigerating medium pipe arrangement 54.Condensing tower 2 constitutes tubular in order to realize the minimizing of area is set, and has the effect as the refrigerating medium case of storing refrigerating medium 7.Refrigerating medium 7 for example is the anti-icing fluid that is made of such petroleum series material of propane diols or gasoline, kerosene etc.This refrigerating medium 7 keeps the temperature range (for example scope about 1~3 ℃) of regulation by control refrigerant loop B.That is, in condensing tower 2,, stir refrigerating medium 7, carry out the adjusting of temperature by cooling refrigerating medium 7.
Coolant pump 8 attracts, pressurization is stored in the refrigerating medium 7 in the condensing tower 2.That is, refrigerating medium 7 is circulated in refrigerating medium loop C by coolant pump 8.Adsorbent cooler 13a and adsorbent cooler 13b are by refrigerating medium 7 cooling adsorption-desorption tower 4a that supply with from condensing tower 2 and the inside of adsorption-desorption tower 4b.By reducing the internal temperature of adsorption-desorption tower 4a and adsorption-desorption tower 4b, can increase the adsorption capacity of gasoline vapour.Refrigerating medium 7 interflow from adsorbent cooler 13a and adsorbent cooler 13b flow out respectively flow into condensing tower 2 once more.
In addition, be provided for detecting the liquid level meter 55 of inner refrigerating medium 7 liquid levels in the side of condensing tower 2.And then, be provided for detecting the refrigerant temperature detector 12 of the thermistor of inner refrigerating medium 7 temperature or thermometer etc. at condensing tower 2.The temperature information that is detected by this refrigerant temperature detector 12 is transported to the illustrated controlling organization of omission, and control refrigerant loop B is so that remain on the temperature of refrigerating medium 7 in the prescribed limit.This controlling organization is controlled the switching of each magnetic valve, the driving frequency of each pump, the driving frequency of compressor 41, the rotating speed of blower fan 46 etc.
Fig. 2 is the schematic diagram of an example of the configuration of expression gasoline vapour retracting device 100.Based on Fig. 2 one example of the configuration of gasoline vapour retracting device 100 is described.As shown in Figure 2, gasoline vapour retracting device 100 constitutes frameworks 120 by two side frames (side frame 114 and side frame 115), the top panel 111 that becomes end face, the base plate 119 that becomes the bottom surface.In the inside of this framework 120, multi-disc panel (refrigerator panel 112, air gap panel 113, condensing tower and adsorption-desorption tower panel 116, separate smoke pump panel 117 and gasoline vapour pump panel 118) is set in the horizontal direction, form the space of taking in above-mentioned each equipment.
Promptly, refrigerator panel 112, air gap panel 113, condensing tower and adsorption-desorption tower panel 116, separate and smoke pump panel 117 and gasoline vapour pump panel 118 and be arranged on horizontal direction, form the space of taking in above-mentioned each equipment in the modes in the interval partition frame 120 in accordance with regulations.These panel utilization welding engage with side frame.By like this, the above-below direction that can suppress the heat in each space moves.Therefore, can suppress the heat radiation of adsorption-desorption tower 4a and adsorption-desorption tower 4b, suppress temperature inside and rise.For this reason, the adsorption capacity of gasoline vapour can also be increased, the raising of gasoline vapour organic efficiency can be realized.
The superiors at framework 120 are provided with refrigerator panel 112, form space (non-explosion-proof area 125) between top panel 111 and refrigerator panel 112, at refrigerator panel 112 mounting refrigerators 6.Air gap panel 113 is set below refrigerator panel 112, forms the space between refrigerator panel 112 and air gap panel 113, this space performance is as the effect of air gap 110.This air gap 110 is (to have taked the parts of special technical cue in order to the ignition source that do not become combustible from the viewpoint of secure context as being used to separate explosion-proof parts, mainly refer to electric apparatus for explosive atmospheres at this) and non-explosion-proof parts (do not take parts in order to the such special technical cue of the ignition source that does not become combustible, at this control substrate etc. that refers to refrigerator 6 or carry controlling organization) the space be provided with, law is also stipulated and must be provided with in addition.
Condensing tower and adsorption-desorption tower panel 116 are set below air gap panel 113, between air gap panel 113 and condensing tower and adsorption-desorption tower panel 116, form the space, at condensing tower and adsorption-desorption tower panel 116 mounting condensing towers 2, adsorption-desorption tower 4a and adsorption-desorption tower 4b.Condensing tower 2, adsorption-desorption tower 4a and adsorption-desorption tower 4b cooling are also reclaimed gasoline vapour, because the space of these equipment of mounting is cooled, so in the following description this space is called cooled region.
Below condensing tower and adsorption-desorption tower panel 116, be provided with to separate and smoke pump panel 117, conciliate to smoke between the pump panel 117 at condensing tower and adsorption-desorption tower panel 116 and form the space, smoke pump panel 117 mountings and separate and smoke pump 5 separating.Separate smoke pump panel 117 below gasoline vapour pump panel 118 is set, form the space separating to smoke between pump panel 117 and the gasoline vapour pump panel 118, at gasoline vapour pump panel 118 mounting gasoline vapour pumps 1.Separate and smoke pump 5 and gasoline vapour pump 1 and generate heat by driving, the space that will take in these equipment in the following description is called heating region.
In addition, gasoline vapour retracting device 100 and gasoline meter 101 are arranged on and are formed at being provided with on the basis 121 in the gas station.In addition, basic 121 inside are being set, are forming power supply, row type mine pit 122 in the island of atmosphere usefulness pipe arrangement 36 and outlet 10 is set.In addition, size, shape, thickness and material that basis 121 is set are not particularly limited, according to the size or the shape of gasoline vapour retracting device 100 and gasoline meter 101, the size that platform number or gas station are set or purpose (for example or for riding motor vehicle special use, or also can use etc. for large car) determine to get final product.
At this, the elemental motion of gasoline vapour retracting device 100 is described based on Fig. 1 and Fig. 2.
At first, make refrigerant loop B action, reduce the temperature of refrigerant evaporator 44.Concrete is by drive compression machine 41, to make the cold-producing medium circulation, thereby the temperature that is located at the refrigerant evaporator 44 in the condensing tower 2 is reduced.At this moment, be filled in the temperature that condensing tower 2 interior refrigerating mediums 7 drop to regulation.In addition, if refrigerating medium 7 reaches the temperature of regulation, then stop the driving of compressor 41.
Surpass the scope of regulation if the temperature of refrigerating medium 7 rises, then begin the driving of compressor 41 again.That is, diagram abridged controlling organization is controlled the compressor 41 of refrigerant loop B based on the temperature information from refrigerant temperature detector 12, makes the temperature of refrigerating medium 7 remain on the scope of regulation.Like this, be controlled in the scope of regulation, reach the preparation that gasoline vapour reclaims running by the temperature of the refrigerating medium 7 in the condensing tower 2.In addition, with from gasoline meter 101 when motor vehicle etc. is supplied with liquified petroleum, the beginning gasoline vapour reclaims running.
From fuel oil supply nozzle 102 when the fuel tank of motor vehicle etc. is supplied with liquified petroleum, the gasoline vapour of evicting from from oil-feed port is attracted in the gasoline vapour condensation loop A, begin gasoline vapour since then and reclaim and turn round.That is,, gasoline vapour is attracted in the gasoline vapour condensation loop A, thereby the beginning gasoline vapour reclaims running by means of fuel oil supply nozzle 102 by the running of the gasoline vapour pump 1 that constitutes gasoline vapour condensation loop A.
The gasoline vapour that is attracted flows in framework 120 from bottom to top by being positioned at the island type mine pit 122 that basic 121 inside are set, and imports in the condensing tower 2 (arrow shown in Figure 2 (a)).Import in the gasoline condenser 24 of gasoline vapour condensing tower 2 in the condensing tower 2 in the slowly cooling from above mobile downwards.The part of the gasoline vapour that is cooled liquefies and flows out from condensing tower 2.The gasoline of liquefaction is caught and is reclaimed by gas-liquid separator 3, from containing the air separation of gasoline vapour.The liquified petroleum of being caught by gas-liquid separator 3 is back to gasoline meter 101, is reused.
In addition, there is not the gasoline vapour of liquefaction to flow into adsorption-desorption tower 4a or adsorption-desorption tower 4b.That is, because only can not be with all liquefaction and recovery of gasoline vapour, so gasoline vapour is adsorbed by adsorption-desorption tower 4a and adsorption-desorption tower 4b and desorb and recovery by condensing tower 2.Under situation by adsorption-desorption tower 4a adsorbed gasoline steam, control the second magnetic valve 26a and open, to control the second magnetic valve 26b and close, the air that contains gasoline vapour of effluent gases liquid/gas separator 3 flow into adsorption-desorption tower 4a.
In adsorption-desorption tower 4a, by the adsorbent 9a adsorbed gasoline steam that is located at adsorption-desorption tower 4a inside.Therefore since from the air that contains gasoline vapour the adsorbed gasoline steam, so, further reduced the concentration of gasoline vapour.For example, by adsorbent 9a adsorbed gasoline steam, the amount of gasoline vapour is dropped to below the 1vol%.In addition, this air is arranged to atmosphere (arrow shown in Figure 2 (b)) from outlet 10 via being controlled to the 3rd magnetic valve 27a and first pressure-reducing valve of opening 28.
In addition, in adsorption-desorption tower 4b, be adsorbed the desorb of the gasoline vapour of agent 9b absorption.Concrete is, separates by driving and smokes pump 5, and the air that is taken into from air entry 11 flow into adsorption-desorption tower 4b (arrow shown in Figure 2 (c)) in 31 decompressions of second pressure-reducing valve via the 4th magnetic valve 32b.At this moment, the pressure in the adsorption-desorption tower 4b becomes negative pressure.That is, by the gasoline vapour of adsorbent 9b absorption, under the suction function of the air that flow into adsorption-desorption tower 4b, from adsorbent 9b desorb.In addition, the amount of the gasoline vapour that is contained in the air increases (being that gasoline vapour concentration uprises), flows out from adsorption-desorption tower 4b, utilizes again.
The gasoline vapour that flows out from adsorption-desorption tower 4b is separated to smoke pump 5 and attracts, and flowing into gasoline absorption once more (is that gasoline vapour adsorbs loop A with pipe arrangement 29 1).Then, the gasoline vapour interflow with flowing into from fuel oil supply nozzle 102 flow into condensing tower 2.Like this, in gasoline vapour retracting device 100, realized the raising of the rate of recovery of gasoline vapour.In addition, be in order to improve condensation performance and absorption property with being held in low temperature in adsorption-desorption tower 4a and the adsorption-desorption tower 4b, keeping the temperature of refrigerating medium 7 is the moisture freezes that exist with gasoline vapour in order to prevent.
Near the outlet of adsorption-desorption tower 4a and the adsorption-desorption tower 4b time interval, adsorption-desorption tower 4a or adsorption-desorption tower 4b according to the rules gasoline vapour concentration is switched effect.This be because, for can adsorbed gasoline by adsorbent 9a and adsorbent 9b institute the amount of steam, have the boundary of regulation, and, must conciliate the switching of inspiration row the absorption of gasoline vapour in order to carry out continuous running.In above-mentioned example, be thought of as the situation that plays a role, makes the adsorption-desorption tower 4b as the desorber effect to play a role as desorber as the adsorption-desorption tower 4a of adsorption tower effect that makes as adsorption tower.
At this, the configuration of each equipment in the framework 120 is elaborated.
As mentioned above, in framework 120, refrigerator 6 is configured in the superiors, and next coming in order form air gap 110, cooled region, heating region.In addition, be used for air row be arranged on type mine pit 122 in the island to the outlet 10 of atmosphere, promptly than the position of heating region by the below.And then gasoline is separated and to be smoked pipe arrangement 35 and to be configured in cooled region in order being connected with adsorption-desorption tower 4a and adsorption-desorption tower 4b.That is, air entry 11 be arranged on adsorption-desorption tower 4a and adsorption-desorption tower 4b near, advance to separate to smoke air from the side frame side draught.
At condensing tower and adsorption-desorption tower panel 116, separate and smoke pump panel 117, gasoline vapour pump panel 118 and base plate 119, the slotting logical gasoline absorption of formation is separated with pipe arrangement 29, gasoline and is smoked pipe arrangement 35 and arrange through hole from pipe arrangement 36 to atmosphere that use, by means of these through holes each pipe arrangement is set.In the gasoline vapour retracting device 100 that becomes such configuration formation, the row of chilled air smokes the space that is provided with that space and gasoline vapour pump 1 are set of pump 5 as separating of heating region with pipe arrangement 36 processes to atmosphere by the gasoline vapour recovery can to make conducting.
Therefore, do not use special mechanism just can to row to atmosphere with pipe arrangement 36 in the air of conducting heat, the row of preventing is to atmosphere usefulness pipe arrangement 36 dewfall effectively.Thus, needn't be wrapped in unnecessary heat-insulating material row and use on the pipe arrangement 36, can help to reduce cost to atmosphere.In addition, by evacuating air is discharged downwards, the gasoline vapour of some amounts that can prevent from evacuating air to be contained disperses.This is effectively to have utilized the heavier-than-air characteristic of gasoline vapour.And then, also can prevent dispersing of gasoline foul smell, can reduce with respect to the sense of discomfort of in the gas station, carrying out the user of fuel feeding operation.
Owing to be located at the outlet 10 used to atmosphere than row position by the top separating the air entry 11 that smokes air, so, smoke the gasoline vapour that can not sneak into some amounts that air contained of discharge in the air separating.The performance that therefore, can keep adsorbent 9a and adsorbent 9b chronically.In addition, because cooled region is arranged on than the position of heating region by the top, so, compare by the situation of the position of below with cooled region being provided with than heating region, row is not implemented with pipe arrangement 36 self to atmosphere special adiabatic, just effectively the row of preventing to atmosphere pipe arrangement 36 dewfall.
By by a plurality of panels (refrigerator panel 112, air gap panel 113, condensing tower and adsorption-desorption tower panel 116, separate smoke pump panel 117 and gasoline vapour pump panel 118) partition frame 120 inside, can suppress the moving of above-below direction of heat, more effectively the row of preventing is to the dewfall of atmosphere with pipe arrangement 36.In addition, can prevent that unnecessary work that can freezing-inhibiting machine 6 can realize the reduction of operating cost from outside (for example heating region etc.) heating to cooled region.
Fig. 3 is another routine schematic diagram of the configuration of expression gasoline vapour retracting device 100.Based on Fig. 3 another example of the configuration of gasoline vapour retracting device 100 is described.In Fig. 2 illustration air entry 11 is located near adsorption-desorption tower 4a and the adsorption-desorption tower 4b situation, and illustrative in Fig. 3 be that air entry 11 is located at situation with the position of outlet 10 equal heights.As long as this air entry 11 be located at outlet 10 that the position is set is identical or than the position that the high height in position is set of outlet 10.Be taken into from air entry 11 and be used for desorb and smoke air (arrow (c shown in Figure 3 by the separating of gasoline vapour of adsorbent 9a or adsorbent 9b absorption 1)).It is desirable to, separate to smoke at this and do not contain the gasoline vapour composition in air.
Thereby, in Fig. 2, air entry 11 be arranged at than outlet 10 the position is set by the position of top, smoke the gasoline vapour composition that does not contain some amounts contained from the air that outlet 10 is discharged in the air separating.At this, because the configuration of gasoline vapour retracting device 100, also imagination must be arranged on position with outlet 10 equal heights to air entry 11.Therefore, in Fig. 3, air entry 11 towards with outlet 10 towards different.Even like this, smoke separating of being taken into from air entry 11 and also do not comprise the air (arrow (b shown in Figure 3 that discharges from outlet 10 air 1)) the gasoline vapour composition of contained some amounts.
As shown in Figure 2, be arranged on the form in the type mine pit 122 in the island for outlet 10, if air entry 11 is located at the above height of ground plane of gasoline vapour retracting device, then the air of discharging from outlet 10 just can not be taken into from air entry 11.But, as shown in Figure 3, be arranged on the form of the position of equal height for air entry 11 and outlet 10, when air entry 11 towards with outlet 10 be oriented equidirectional the time, the air of discharging from outlet 10 can be taken into from air entry 11.For fear of such problem, in Fig. 3, air entry 11 towards with the different directions that is oriented of outlet 10.
Fig. 4 is the schematic diagram of another example of the configuration of expression gasoline vapour retracting device 100.Based on Fig. 4 the another example of the configuration of gasoline vapour retracting device 100 is described.In Fig. 2 and Fig. 3, illustrated for not from air entry 11 be taken into the air of discharging from outlet 10 and air entry 11 be arranged on outlet 10 that the position is set is identical or than the position that the high height in position is set of outlet 10, and in Fig. 4, the air of discharging from outlet 10 is described from the improvement that air entry 11 is taken into to being used for.
In Fig. 2 illustration make outlet 10 in vertical direction situation down, in Fig. 3 illustration make the directed in the horizontal direction situation of outlet 10, but as long as in this scope, promptly down scope (is arrow (b)~arrow (b shown in Figure 4 from horizontal direction to vertical direction 1) scope) outlet 10 directionally be set get final product.Because the gasoline vapour composition is heavier than air, so, discharge air in this scope if be arranged in, then the gasoline vapour foul smell just can not rise to its above height.Therefore, can prevent that the gasoline vapour of some amounts contained in evacuating air from dispersing, can reduce with respect to the sense of discomfort of in the gas station, carrying out the user of fuel feeding operation.
In addition, in Fig. 2 and Fig. 3 illustration the directed in the horizontal direction situation of air entry 11, but also can be as shown in Figure 4 with from horizontal direction to vertical direction up scope (promptly at arrow shown in Figure 4 (c)~arrow (c 2) scope) directed mode is provided with air entry 11.By suitable adjustment air entry 11 towards with outlet 10 towards, can be so that the air of discharging from outlet 10 further be taken into from air entry 11.The smoking pipe arrangement 35 and adjust of air entry 11 towards separating by bending machining gasoline, outlet 10 towards adjusting with pipe arrangement to atmosphere by bending machining row.Therefore, can increase the processing selecting number of times of each pipe arrangement, can determine the configuration of each pipe arrangement, can help space savingization, design optimization according to the size of gasoline vapour retracting device 100, shape etc.

Claims (10)

1. a gasoline vapour retracting device is characterized in that, described gasoline vapour retracting device has:
Gasoline vapour pump, this gasoline vapour pump attract from the gasoline vapour of fuel tank discharge,
Condensing tower, this condensing tower is filled refrigerating medium in inside, the gasoline vapour that cooling is attracted by described gasoline vapour pump,
Adsorption-desorption tower, this adsorption-desorption tower utilize adsorbents adsorb by the gasoline vapour that described gasoline vapour pump attracts, and will be adsorbed in the gasoline vapour desorb of described adsorbent,
Separate and smoke pump, this separate smoke pump to described adsorption-desorption tower supply with separate smoke air and
Framework, this framework are taken in described gasoline vapour pump, described condensing tower, described adsorption-desorption tower and described separating and are smoked pump in inside;
In described framework, described condensing tower and described adsorption-desorption tower are configured in than described gasoline vapour pump and described separating and smoke the position of pump by the top.
2. gasoline vapour retracting device as claimed in claim 1 is characterized in that, described gasoline vapour retracting device possesses refrigerator, and this used for refrigerator is in cooling off the refrigerating medium that is filled in described condensing tower inside,
In described framework, described refrigerator is configured in topmost.
3. gasoline vapour retracting device as claimed in claim 2 is characterized in that, described refrigerator, described gasoline vapour pump, described condensing tower, described adsorption-desorption tower and described separating smoke pump and be configured in the space of being separated by the panel of being located at horizontal direction.
4. as each described gasoline vapour retracting device in the claim 1 to 3, it is characterized in that, described gasoline vapour retracting device is provided with row to the atmosphere pipe arrangement, this row's air conducting to atmosphere will adsorb described gasoline vapour with pipe arrangement in described adsorption-desorption tower after
Described row passes through described gasoline vapour pump and the described accommodation space that smokes pump of separating to atmosphere with pipe arrangement.
5. gasoline vapour retracting device as claimed in claim 4 is characterized in that, is located at described row and is arranged on than described gasoline vapour pump and described position of separating the accommodation space that smokes pump by the below with the outlet of the end of pipe arrangement to atmosphere.
6. gasoline vapour retracting device as claimed in claim 5 is characterized in that, described outlet is at down the scope interior orientation from horizontal direction to vertical direction.
7. as claim 5 or 6 described gasoline vapour retracting devices, it is characterized in that, described gasoline vapour retracting device is provided with conducting and separates the gasoline that smokes air and separate and smoke pipe arrangement, and this is separated and smokes air and be used for the described adsorbent described gasoline vapour desorb by described adsorption-desorption tower
Be located at described gasoline separate the air entry of the end that smokes pipe arrangement be arranged on described outlet that the position is set is identical or than described outlet the high height in position is set.
8. gasoline vapour retracting device as claimed in claim 7 is characterized in that, is arranged at described air entry under the situation of the position higher than described outlet,
Described air entry is directed in the horizontal direction, and described outlet is directed down in vertical direction.
9. gasoline vapour retracting device as claimed in claim 7 is characterized in that, is arranged under the situation of identical height at described air entry and described outlet,
Described air entry and described outlet are in different direction orientations.
10. as each described gasoline vapour retracting device in the claim 7 to 9, it is characterized in that described air entry is at up the scope interior orientation from horizontal direction to vertical direction.
CN2008801304543A 2008-10-27 2008-10-27 Gasoline vapor recovery device Pending CN102099088A (en)

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Application publication date: 20110615