WO2010049981A1 - ガソリンベーパ回収装置 - Google Patents
ガソリンベーパ回収装置 Download PDFInfo
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- WO2010049981A1 WO2010049981A1 PCT/JP2008/069403 JP2008069403W WO2010049981A1 WO 2010049981 A1 WO2010049981 A1 WO 2010049981A1 JP 2008069403 W JP2008069403 W JP 2008069403W WO 2010049981 A1 WO2010049981 A1 WO 2010049981A1
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- gasoline vapor
- desorption
- adsorption
- gasoline
- tower
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/002—Separation 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
- B01D5/003—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium within column(s)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/02—Separation 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
- B01D53/04—Separation 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/76—Arrangements of devices for purifying liquids to be transferred, e.g. of filters, of air or water separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
Definitions
- the present invention relates to a gasoline vapor recovery device for recovering vaporized gasoline (hereinafter referred to as gasoline vapor).
- gasoline liquid is stored in the lower part, and gasoline vapor exists in a saturated state in the upper part.
- gasoline vapor exists in a saturated state in the upper part.
- the gasoline vapor present in the gasoline tank was expelled from the refueling port and released into the atmosphere.
- photochemical smog which will lead to a problem of adversely affecting the human body and the environment.
- a gasoline vapor recovery device that recovers gasoline vapor and cools and reuses it has been developed, and various techniques have been proposed so far (see, for example, Patent Documents 1 to 3).
- the gasoline vapor recovered by the gasoline vapor recovery device is a gasoline vapor that conducts through the inside of a condensing tower (gasoline vapor condensing container) filled with antifreeze (for example, petroleum substances such as brine (propylene glycol, etc.), gasoline, kerosene). It is cooled in the condenser and discharged. If it is discharged in this state, condensation will occur around the pipe that is conducted for discharge. For example, by exchanging heat between high-temperature gasoline vapor pressurized by a pump and low-temperature air released into the atmosphere (air containing a small amount of gasoline vapor remaining without being recovered). A method of increasing the temperature of air released to the atmosphere is conceivable.
- Japanese Patent No. 3843271 pages 7-9, Fig. 1
- Japanese Patent Laying-Open No. 2005-177563 pages 5 to 10, FIG. 1
- JP 2006-198604 A pages 4-7, FIG. 2
- a heat exchanger in order to prevent the occurrence of condensation by the above method, a heat exchanger must be provided separately, which not only increases the product cost, but also increases the restriction on the piping.
- the air released into the atmosphere contains a small amount of gasoline vapor
- the blowout of air mixed with combustible components flows into, for example, the electrical product area (hereinafter referred to as the non-explosion-proof area) of the gasoline vapor recovery device. It is not preferable to do so.
- a small amount of gasoline odor component remains in the air released to the atmosphere, and this disperses the air, which may cause discomfort to the users in the gas station.
- gasoline vapor recovery device is equipped with an adsorption / desorption tower and the gasoline vapor recovery device recovers gasoline vapor using an adsorbent (for example, silica gel, zeolite, activated carbon, etc.) filled in the adsorption / desorption tower,
- adsorbent for example, silica gel, zeolite, activated carbon, etc.
- a second object is to provide a gasoline vapor recovery device that prevents dew condensation in a pipe that releases air to the atmosphere.
- a fourth object of the present invention is to provide a gasoline vapor recovery device in which air released into the atmosphere and air sucked for detachment are not mixed. It is aimed.
- a gasoline vapor recovery device includes a gasoline vapor pump that sucks gasoline vapor discharged from a gasoline tank, a condenser tower that is filled with brine and cools the gasoline vapor sucked by the gasoline vapor pump, An adsorption / desorption tower that adsorbs gasoline vapor sucked by the gasoline vapor pump with an adsorbent, desorbs the gasoline vapor adsorbed on the adsorbent, a desorption pump that supplies desorption air to the adsorption / desorption tower, and A gasoline vapor, the condensation tower, the adsorption / desorption tower, and a frame frame that accommodates the desorption pump therein, and the condensation tower and the adsorption / desorption tower in the frame frame, the gasoline vapor pump and the It arrange
- the movement of heat generated from each device accommodated in the frame can be suppressed in the vertical direction, and the gasoline vapor recovery efficiency can be improved.
- FIG. 1 is a schematic configuration diagram showing a circuit configuration of an entire gasoline vapor recovery apparatus 100 according to an embodiment of the present invention.
- the circuit configuration of the gasoline vapor recovery device 100 will be described with reference to FIG.
- the gasoline vapor recovery device 100 cools and collects the sucked gasoline vapor in a condensing tower, and provides two adsorption / desorption towers for adsorbing or desorbing the gasoline vapor, and appropriately switching the functions of the two adsorption / desorption towers.
- Gasoline vapor is recovered (adsorption) and reused (desorption).
- the relationship of the size of each component may be different from the actual one.
- the gasoline vapor recovery device 100 is installed in a gasoline station or the like together with a gasoline meter 101 for supplying gasoline to an automobile or the like. And the gasoline vapor collection apparatus 100 collects and reuses the gasoline vapor released into the atmosphere from a fuel filler port of an automobile or the like.
- the gasoline vapor recovery device 100 is roughly composed of a gasoline vapor condensing circuit A, a refrigerant circuit B, and a brine circuit C.
- the gasoline vapor condensing circuit A is composed of a gasoline vapor adsorption circuit A 1 and a gasoline vapor desorption circuit A 2 .
- the gasoline vapor adsorption circuit A 1 for adsorbing gasoline vapor in the adsorption / desorption tower 4 a includes an oil supply nozzle 102, a first electromagnetic valve 22, a gasoline vapor pump 1, a gasoline condenser 24, and a gas-liquid separator 3.
- the second electromagnetic valve 26a, the adsorption / desorption tower 4a, the third electromagnetic valve 27a, the first pressure reducing valve 28, and the discharge port 10 are sequentially connected by a gasoline adsorption pipe 29 and an air discharge pipe 36. Has been.
- the gasoline vapor adsorption circuit A 1 for adsorbing gasoline vapor in the adsorption / desorption tower 4 b includes an oil supply nozzle 102, a first electromagnetic valve 22, a gasoline vapor pump 1, a gasoline condenser 24, and a gas-liquid separator 3.
- the second electromagnetic valve 26b, the adsorption / desorption tower 4b, the third electromagnetic valve 27b, the first pressure reducing valve 28, and the discharge port 10 are sequentially connected by a gasoline adsorption pipe 29.
- the gasoline vapor recovery apparatus 100 controls each of the above-described solenoid valves so that one of the adsorption / desorption tower 4a or the adsorption / desorption tower 4b functions as an adsorption / desorption tower that adsorbs gasoline vapor, and the other is the gasoline vapor. It is designed to function as a desorption tower for desorption.
- the adsorption / desorption tower 4a and the adsorption / desorption tower 4b may be switched at a predetermined time interval or according to the gasoline vapor concentration in the vicinity of the outlet of the adsorption tower.
- the gasoline measuring machine 101 is for measuring gasoline to be supplied to an automobile or the like.
- the oil supply nozzle 102 is inserted into an oil supply port of an automobile or the like when supplying gasoline from the gasoline measuring machine 101.
- the fueling nozzle 102 also has a function as an inlet when sucking gasoline vapor discharged from the fueling port into the atmosphere.
- the case where one oil supply nozzle 102 is provided is shown as an example, but the number of oil supply nozzles 102 is not particularly limited.
- the first electromagnetic valve 22 has a function of preventing the backflow of gasoline vapor sucked from the fuel supply nozzle 102.
- the first electromagnetic valve 22 may be provided according to the number of oil supply nozzles 102 installed.
- the gasoline vapor pump 1 sucks and pressurizes the gasoline vapor from the fuel supply nozzle 102.
- the gasoline condenser 24 is provided in the condensing tower 2 such as a gasoline vapor condensing container, and cools and condenses the gasoline vapor passing through the inside.
- the gas-liquid separator 3 separates liquefied gasoline and gasoline vapor by capturing the condensed and liquefied gasoline.
- FIG. 1 it is good to provide the on-off valve 30 in the piping which connects the liquefied gasoline isolate
- the second solenoid valve 26a and the second solenoid valve 26b are controlled to open and close, and may or may not conduct air containing gasoline vapor that could not be recovered by the condensation tower 2.
- the adsorption / desorption tower 4a and the adsorption / desorption tower 4b have a function as an adsorption tower for adsorbing gasoline vapor and a function as a desorption tower for desorbing gasoline vapor.
- An adsorbent cooler 13a and an adsorbent 9a which will be described later, are provided inside the adsorption / desorption tower 4a.
- an adsorbent cooler 13b and an adsorbent 9b which will be described later, are provided inside the adsorption / desorption tower 4b.
- the adsorbent cooler 13a has a function of cooling the inside of the adsorption / desorption tower 4a by the brine 7 filled in the condensation tower 2.
- the adsorbent cooler 13b also has a function of cooling the inside of the adsorption / desorption tower 4b by the brine 7 filled in the condensation tower 2. That is, by providing the adsorbent cooler 13a and the adsorbent cooler 13b in the adsorption / desorption tower 4a and the adsorption / desorption tower 4b, it becomes possible to adsorb gasoline vapor with a small amount of the adsorbent 9a and the adsorbent 9b. Yes.
- the adsorbent 9a and the adsorbent 9b adsorb gasoline vapor from the air containing gasoline vapor.
- the adsorbent 9a and the adsorbent 9b adsorb gasoline vapor contained in the air to obtain air containing an average of 1 vol% or less of gasoline vapor.
- the adsorbent 9a and adsorbent 9b for example, silica gel, zeolite, activated carbon or the like may be used.
- the gasoline vapor is adsorbed on the adsorbent 9a or adsorbent 9b of the adsorption / desorption tower 4a or the adsorption / desorption tower 4b, and the gasoline vapor is desorbed by the other adsorbent 9a or adsorbent 9b. Then, adsorption and desorption are alternately switched to enable continuous operation.
- the third solenoid valve 27a and the third solenoid valve 27b are controlled to open and close, so that the air after the gasoline vapor is further adsorbed on one of the adsorption / desorption tower 4a or the adsorption / desorption tower 4b may or may not be conducted.
- the 1st pressure-reduction valve 28 decompresses the air after passing through the adsorption / desorption tower 4a or the adsorption / desorption tower 4b.
- the discharge port 10 discharges air that has been decompressed by the first pressure reducing valve 28 and reached via the air exhaust pipe 36 into the atmosphere.
- the gasoline adsorption pipe 29 is a pipe that conducts air containing gasoline vapor.
- the air exhaust pipe 36 is a pipe that conducts air after adsorption of gasoline vapor in the adsorption / desorption tower 4a or the adsorption / desorption tower 4b.
- the gasoline vapor desorption circuit A 2 when desorbing gasoline vapor in the adsorption / desorption tower 4b includes an intake port 11, a second pressure reducing valve 31, a fourth electromagnetic valve 32b, an adsorption / desorption tower 4b, and a fifth electromagnetic valve 33b. And the desorption pump 5 are connected in sequence by a gasoline desorption pipe 35.
- the gasoline vapor desorption circuit A 2 in the case of adsorbing gasoline vapor in the adsorption / desorption tower 4b has an intake port 11, a second pressure reducing valve 31, a fourth electromagnetic valve 32a, an adsorption / desorption tower 4a, and a fifth electromagnetic wave.
- the valve 33a and the desorption pump 5 are sequentially connected by a gasoline desorption pipe 35.
- the intake port 11 takes in air used for desorption of gasoline vapor from outside air.
- the second pressure reducing valve 31 depressurizes the air taken in from the intake port 11.
- the fourth solenoid valve 32a and the fourth solenoid valve 32b have a function of conducting or not conducting the air decompressed by the second decompression valve 31 by controlling opening and closing.
- Desorption tower 4b constituting the gasoline vapor desorption circuit A 2 functions as a desorption tower to desorb the gasoline vapor as described above.
- desorption tower 4a and desorption tower 4b when configuring the gasoline vapor desorption circuit A 2 will serve as a desorber to desorb the gasoline vapor.
- the fifth solenoid valve 33a and the fifth solenoid valve 33b have a function of conducting or not conducting air containing gasoline vapor by opening and closing being controlled.
- the desorption pump 5 has a function of sucking air from outside air through the intake port 11 in order to supply desorption air to the adsorption / desorption tower 4b or the adsorption / desorption tower 4a.
- the gasoline demounting pipe 35 is a pipe that conducts air and air including gasoline vapor.
- the gasoline demounting pipe 35 is connected to a gasoline adsorption pipe 29 between the first electromagnetic valve 22 of the gasoline vapor adsorption circuit A 1 and the gasoline vapor pump 1.
- the refrigerant circuit B is mounted on the refrigerator 6 and is configured as a heat pump cycle in which a compressor 41, a condenser 42, a throttling device 43, and a refrigerant evaporator 44 are sequentially connected by a refrigerant pipe 45. That is, the refrigerant circuit B conducts the refrigerant in the refrigerant pipe 45, and the refrigerant circulates through each component device, thereby cooling the brine 7 filled in the condensation tower 2. .
- a blower 46 such as a fan for supplying air to the condenser 42 is provided in the vicinity of the condenser 42.
- the compressor 41 sucks the refrigerant flowing through the refrigerant pipe 45 and compresses the refrigerant to bring it into a high temperature / high pressure state.
- the condenser 42 releases the heat of condensation of the refrigerant and condenses the refrigerant.
- the expansion device 43 includes a pressure reducing valve, an electronic expansion valve, a temperature expansion valve, a capillary tube, and the like, and expands the refrigerant by reducing the pressure.
- the refrigerant evaporator 44 takes heat from the brine 7 (that is, cools the brine 7), and evaporates the refrigerant.
- coolant which can be used for the refrigerant circuit B is not specifically limited, Any refrigerant
- the brine circuit C is configured by sequentially connecting the condenser tower 2, the brine pump 8, the adsorbent cooler 13 a and the adsorbent cooler 13 b through a brine pipe 54.
- the condensation tower 2 is configured in a cylindrical shape in order to reduce the installation area, and has a function as a brine tank that stores the brine 7.
- the brine 7 is an antifreeze liquid composed of petroleum substances such as propylene glycol, gasoline, and kerosene.
- the brine 7 is maintained in a predetermined temperature range (for example, a range of about 1 to 3 ° C.) by controlling the refrigerant circuit B. That is, in the condensation tower 2, the brine 7 is agitated by cooling the brine 7, and the temperature is adjusted.
- the brine pump 8 sucks and pressurizes the brine 7 stored in the condensation tower 2. That is, the brine 7 is circulated through the brine circuit C by the brine pump 8.
- the adsorbent cooler 13a and the adsorbent cooler 13b cool the inside of the adsorption / desorption tower 4a and the adsorption / desorption tower 4b by the brine 7 supplied from the condensation tower 2. By reducing the internal temperature of the adsorption / desorption tower 4a and the adsorption / desorption tower 4b, the adsorption capacity of gasoline vapor can be increased.
- the brine 7 that has flowed out of each of the adsorbent cooler 13a and the adsorbent cooler 13b merges and flows into the condensing tower 2 again.
- a liquid level gauge 55 for detecting the liquid level of the internal brine 7 is provided on the side surface of the condensation tower 2.
- the condenser tower 2 is provided with a brine temperature detector 12 such as a thermistor or a thermometer for detecting the temperature of the internal brine 7.
- the temperature information detected by the brine temperature detector 12 is sent to control means (not shown), and the refrigerant circuit B is controlled so as to maintain the temperature of the brine 7 within a predetermined range.
- This control means controls the opening / closing of each solenoid valve, the driving frequency of each pump, the driving frequency of the compressor 41, the rotational speed of the blower 46, and the like.
- FIG. 2 is a schematic diagram showing an example of the layout of the gasoline vapor recovery device 100.
- the gasoline vapor recovery apparatus 100 includes a frame frame 120 with two side frames (a side frame 114 and a side frame 115), a ceiling panel 111 serving as an upper surface, and a base plate 119 serving as a bottom surface. It is composed.
- a plurality of panels (refrigerator panel 112, air gap panel 113, condensing tower and adsorption / desorption tower panel 116, desorption pump panel 117, and gasoline vapor pump panel 118) are horizontally arranged. The space which accommodates each apparatus mentioned above is formed.
- the refrigerator panel 112 the air gap panel 113, the condensing tower and adsorption / desorption tower panel 116, the desorption pump panel 117, and the gasoline vapor pump panel 118 are horizontally oriented so as to partition the frame frame 120 at a predetermined interval.
- the space which accommodates each apparatus mentioned above is formed.
- These panels shall be side-frame joined by welding.
- a refrigerator panel 112 is installed at the uppermost stage of the frame frame 120, a space (non-explosion-proof area 125) is formed between the ceiling panel 111 and the refrigerator panel 112, and the refrigerator 6 is placed on the refrigerator panel 112. Is done.
- An air gap panel 113 is installed under the refrigerator panel 112, and a space is formed between the refrigerator panel 112 and the air gap panel 113, and this space serves as the air gap 110.
- This air gap 110 is an explosion-proof part (a part for which special technical measures have been taken so as not to become an ignition source of combustible materials, and mainly refers to an explosion-proof electrical equipment) and non-explosion-proof from the viewpoint of safety.
- Space that separates parts parts that do not take special technical measures to prevent ignition of flammable materials, here refers to the control board on which the refrigerator 6 and the control means are mounted) It is established that it must be established by law.
- a condensation tower and adsorption / desorption tower panel 116 is installed under the air gap panel 113, and a space is formed between the air gap panel 113 and the condensation tower / adsorption / desorption tower panel 116.
- the condensing tower 2, the adsorption / desorption tower 4a, and the adsorption / desorption tower 4b are mounted.
- the condensing tower 2, the adsorption / desorption tower 4a, and the adsorption / desorption tower 4b are used for cooling and collecting gasoline vapor, and the space in which these are placed is cooled.
- a desorption pump panel 117 is installed under the condensation tower and adsorption / desorption tower panel 116, and a space is formed between the condensation tower / adsorption / desorption tower panel 116 and the desorption pump panel 117.
- a detachable pump 5 is placed.
- a gasoline vapor pump panel 118 is installed under the desorption pump panel 117, a space is formed between the desorption pump panel 117 and the gasoline vapor pump panel 118, and the gasoline vapor pump 1 is mounted on the gasoline vapor pump panel 118. Placed.
- the detachable pump 5 and the gasoline vapor pump 1 generate heat when driven, and a space in which these are placed is referred to as a heat generation area in the following description.
- the gasoline vapor collection apparatus 100 and the gasoline meter 101 are installed on the installation base 121 formed in the gas station.
- an in-island pit 122 in which the power source, the air exhaust pipe 36 and the exhaust port 10 are provided is formed inside the installation foundation 121.
- the size, shape, thickness and material of the installation foundation 121 are not particularly limited. The size and shape of the gasoline vapor recovery device 100 and the gasoline weighing machine 101, the number of installed units, or the size and purpose of the gas station (for example, Whether it is dedicated to passenger cars or large cars can be used, etc.).
- the refrigerant circuit B is operated to lower the temperature of the refrigerant evaporator 44. Specifically, the temperature of the refrigerant evaporator 44 provided in the condensing tower 2 is lowered by driving the compressor 41 and circulating the refrigerant. At this time, the brine 7 filled in the condensation tower 2 is lowered to a predetermined temperature. When the brine 7 reaches a predetermined temperature, the drive of the compressor 41 is stopped.
- the control means controls the compressor 41 of the refrigerant circuit B based on the temperature information from the brine temperature detector 12, the temperature of the brine 7 is maintained within a predetermined range. is there. Thus, the temperature of the brine 7 in the condensing tower 2 is controlled within a predetermined range, so that the preparation for the gasoline vapor recovery operation is completed. Then, at the same time as liquefied gasoline is supplied from the gasoline meter 101 to the automobile or the like, the gasoline vapor recovery operation is started.
- Gasoline vapor recovery operation starts by sucking the gasoline vapor expelled from the fuel filler port into the gasoline vapor condensing circuit A when the liquefied gasoline is supplied from the fuel supply nozzle 102 to the gasoline tank of an automobile or the like. That is, when the gasoline vapor pump 1 that constitutes the gasoline vapor condensing circuit A is operated, the gasoline vapor is sucked into the gasoline vapor condensing circuit A through the fuel filler nozzle 102, and the gasoline vapor collecting operation is started.
- the sucked gasoline vapor passes through the pit 122 in the island inside the installation base 121, flows from the bottom to the top of the frame frame 120, and is guided into the condensation tower 2 (arrow (a) shown in FIG. 2). .
- the gasoline vapor introduced into the condensation tower 2 flows from the upper side to the lower side while being gradually cooled in the gasoline condenser 24 in the condensation tower 2.
- a portion of the cooled gasoline vapor is liquefied and flows out of the condensation tower 2.
- the liquefied gasoline is captured and collected by the gas-liquid separator 3 and separated from the air containing gasoline vapor.
- the liquefied gasoline captured by the gas-liquid separator 3 is returned to the gasoline meter 101 and reused.
- the gasoline vapor that has not been liquefied flows into the adsorption / desorption tower 4a or the adsorption / desorption tower 4b.
- the gasoline vapor is adsorbed and desorbed by the adsorption / desorption tower 4a and the adsorption / desorption tower 4b and collected.
- the second electromagnetic valve 26a is controlled to open, the second electromagnetic valve 26b is controlled to close, and the air containing the gasoline vapor flowing out of the gas-liquid separator 3 is absorbed into the adsorption / desorption tower 4a. Flow into.
- gasoline vapor is adsorbed by the adsorbent 9a provided inside the adsorption / desorption tower 4a. Therefore, since gasoline vapor is adsorbed from the air containing gasoline vapor, the gasoline vapor concentration is further reduced.
- the adsorbent 9a adsorbs gasoline vapor, thereby reducing the gasoline vapor content to 1 vol% or less. Then, this air is released to the atmosphere from the discharge port 10 through the third electromagnetic valve 27a and the first pressure reducing valve 28 that are controlled to be opened (arrow (b) shown in FIG. 2).
- the gasoline vapor adsorbed by the adsorbent 9b is desorbed.
- the air taken in from the intake port 11 is depressurized by the second pressure reducing valve 31, and flows into the adsorption / desorption tower 4b via the fourth electromagnetic valve 32b (FIG. 2 (c)).
- the pressure in the adsorption / desorption tower 4b is negative. That is, the gasoline vapor adsorbed by the adsorbent 9b is desorbed from the adsorbent 9b by the action of the negative pressure of the air flowing into the adsorption / desorption tower 4b.
- the content of gasoline vapor contained in the air is increased (that is, the gasoline vapor concentration is increased), and it is discharged from the adsorption / desorption tower 4b and reused.
- the gasoline vapor that has flowed out of the adsorption / desorption tower 4b is sucked into the desorption pump 5 and flows into the gasoline adsorption pipe 29 (that is, the gasoline vapor adsorption circuit A 1 ) again. Then, it merges with the gasoline vapor that flows in from the fuel filler nozzle 102 and flows into the condensing tower 2. In this way, the gasoline vapor recovery apparatus 100 is designed to improve the recovery rate of gasoline vapor.
- the reason why the adsorption / desorption tower 4a and the adsorption / desorption tower 4b are maintained at a low temperature is to improve the condensing performance and the adsorption performance. This is to prevent freezing of water.
- the functions of the adsorption / desorption tower 4a and the adsorption / desorption tower 4b are switched according to a predetermined time interval and the gasoline vapor concentration near the outlet of the adsorption / desorption tower 4a or the adsorption / desorption tower 4b. This is because there is a predetermined limit on the amount of gasoline vapor that can be adsorbed by the adsorbent 9a and adsorbent 9b, and it is necessary to switch between adsorption and desorption of gasoline vapor in order to perform continuous operation.
- the adsorption / desorption tower 4a functioning as an adsorption tower functions as a desorption tower and the adsorption / desorption tower 4b functioning as a desorption tower functions as an adsorption tower.
- the refrigerator 6 is arranged at the uppermost stage, and the air gap 110, the cooling area, and the heat generation area are formed in the following order.
- the discharge port 10 for discharging air to the atmosphere is provided at a position below the pit 122 in the island, that is, the heat generation area.
- the gasoline desorption pipe 35 is disposed in the cooling area so as to be connected to the adsorption / desorption tower 4a and the adsorption / desorption tower 4b. That is, the intake port 11 is provided in the vicinity of the adsorption / desorption tower 4a and the adsorption / desorption tower 4b, and desorption air is sucked from the side frame side.
- the condensing tower and adsorption / desorption tower panel 116, the desorption pump panel 117, the gasoline vapor pump panel 118, and the base plate 119 Through the condensing tower and adsorption / desorption tower panel 116, the desorption pump panel 117, the gasoline vapor pump panel 118, and the base plate 119, the gasoline adsorption pipe 29, the gasoline desorption pipe 35, and the air exhaust pipe 36 are inserted. A hole is formed, and each pipe is installed through the through hole.
- the air exhaust pipe 36 through which the air cooled by the gasoline vapor recovery is conducted is connected to the installation space of the desorption pump 5 that is a heat generation area and the gasoline.
- the installation space of the vapor pump 1 can be routed.
- the intake port 11 for the detachable air is provided above the discharge port 10 for discharging to the atmosphere, gasoline vapor contained in a small amount in the air discharged to the detachable air is not mixed. Therefore, the performance of the adsorbent 9a and the adsorbent 9b can be maintained for a long time.
- the cooling area is provided above the heat generation area, the air discharge pipe 36 itself is not subjected to special heat insulation as compared with the case where the cooling area is provided below the heat generation area. Condensation of the piping 36 can be effectively prevented.
- the frame frame 120 By dividing the frame frame 120 by a plurality of panels (refrigerator panel 112, air gap panel 113, condensing tower and adsorption / desorption tower panel 116, desorption pump panel 117, and gasoline vapor pump panel 118), The movement of heat in the vertical direction can be suppressed, and the condensation of the air exhaust pipe 36 can be more effectively prevented. Moreover, the heating to the cooling area from the outside (for example, heat-generating area etc.) can be prevented, the excessive operation of the refrigerator 6 can be suppressed, and the operating cost can be reduced.
- the cooling area from the outside for example, heat-generating area etc.
- FIG. 3 is a schematic diagram showing another example of the layout of the gasoline vapor recovery device 100. Based on FIG. 3, another example of the layout of the gasoline vapor recovery device 100 will be described. 2 shows an example in which the intake port 11 is provided in the vicinity of the adsorption / desorption tower 4a and the adsorption / desorption tower 4b. In FIG. 3, the intake port 11 is provided at the same height as the discharge port 10. The case is shown as an example. The intake port 11 may be provided at a position that is equal to or higher than the installation position of the discharge port 10. Desorption air for desorbing the gasoline vapor adsorbed by the adsorbent 9a or adsorbent 9b is taken in from the intake port 11 (arrow (c 1 ) shown in FIG. 3). It is desirable that this desorption air does not contain a gasoline vapor component.
- the intake port 11 is installed above the installation position of the discharge port 10, and a slight amount of gasoline vapor component contained in the air discharged from the discharge port 10 is not included in the desorption air. I am doing so.
- the intake port 11 must be installed at the same height as the discharge port 10. Therefore, in FIG. 3, the direction of the intake port 11 and the direction of the discharge port 10 are not set to be the same direction. Even in this case, a slight amount of gasoline vapor component contained in the air discharged from the discharge port 10 (arrow (b 1 ) shown in FIG. 3) is included in the desorption air taken in from the intake port 11. There is no.
- the discharge port 10 is provided if the intake port 11 is provided at a height higher than the ground contact surface of the gasoline vapor recovery device.
- the air discharged from the intake port 11 is not taken in from the intake port 11.
- FIG. 3 in the case where the intake port 11 and the discharge port 10 are installed at the same height position, if the direction of the intake port 11 and the direction of the discharge port 10 are the same direction, the discharge port The air discharged from 10 is taken in from the intake port 11.
- the direction of the intake port 11 and the direction of the discharge port 10 are not set to be the same direction.
- FIG. 4 is a schematic diagram showing still another example of the layout of the gasoline vapor recovery apparatus 100.
- a further example of the layout of the gasoline vapor recovery device 100 will be described with reference to FIG.
- the intake port 11 is provided at a position equal to or higher than the installation position of the discharge port 10.
- FIG. 4 a device for preventing the air discharged from the discharge port 10 from being further taken in from the intake port 11 will be described.
- FIG. 2 shows the case where the discharge port 10 is directed downward in the vertical direction
- FIG. 3 shows the case where the discharge port 10 is directed in the horizontal direction.
- this range that is, the range from the horizontal direction to the downward direction in the vertical direction is shown.
- the discharge port 10 may be provided so as to point in the direction of the arrow (b) to the arrow (b 1 ) shown in FIG. Since the gasoline vapor component is heavier than air, if the air is exhausted within this range, the gasoline vapor odor will not rise above that level. Therefore, it is possible to prevent a slight amount of gasoline vapor contained in the exhaust air from being scattered, and to reduce discomfort for the user who is refueling in the gas station.
- FIG. 2 and FIG. 3 show an example in which the intake port 11 is oriented in the horizontal direction.
- the range from the horizontal direction to the vertical direction that is, the arrow (c) shown in FIG.
- the intake port 11 may be provided so as to point in the direction of the arrow (c 2 ).
- the direction of the intake port 11 can be adjusted by bending the gasoline demounting pipe 35, and the direction of the discharge port 10 can be adjusted by bending the atmospheric discharge pipe. Therefore, based on the size, shape, etc. of the gasoline vapor recovery device 100, the number of times each pipe can be selected can be increased, the layout of each pipe can be determined, and it is possible to contribute to space saving and design. .
Abstract
Description
図1は、本発明の実施の形態に係るガソリンベーパ回収装置100全体の回路構成を示す概略構成図である。図1に基づいて、ガソリンベーパ回収装置100の回路構成について説明する。このガソリンベーパ回収装置100は、吸引したガソリンベーパを凝縮塔で冷却して回収するとともに、ガソリンベーパを吸着又は脱着する2つの吸脱着塔を設け、この2つの吸脱着塔の機能を適宜切り替えてガソリンベーパを回収(吸着)及び再利用(脱着)するものである。なお、図1を含め、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。
吸脱着塔4aでガソリンベーパを吸着する場合のガソリンベーパ吸着回路A1 は、給油ノズル102と、第1電磁弁22と、ガソリンベーパポンプ1と、ガソリン凝縮器24と、気液分離器3と、第2電磁弁26aと、吸脱着塔4aと、第3電磁弁27aと、第1減圧弁28と、排出口10とがガソリン吸着用配管29及び大気排出用配管36で順次接続されて構成されている。
吸脱着塔4bでガソリンベーパを脱着する場合のガソリンベーパ脱着回路A2 は、吸気口11と、第2減圧弁31と、第4電磁弁32bと、吸脱着塔4bと、第5電磁弁33bと、脱着用ポンプ5とがガソリン脱着用配管35で順次接続されて構成されている。一方、吸脱着塔4bでガソリンベーパを吸着する場合のガソリンベーパ脱着回路A2 は、吸気口11と、第2減圧弁31と、第4電磁弁32aと、吸脱着塔4aと、第5電磁弁33aと、脱着用ポンプ5とがガソリン脱着用配管35で順次接続されて構成されている。
冷媒回路Bは、冷凍機6に搭載され、圧縮機41と、凝縮器42と、絞り装置43と、冷媒蒸発器44とが冷媒配管45で順次接続されたヒートポンプサイクルとして構成されている。つまり、冷媒回路Bは、冷媒配管45内に冷媒を導通し、この冷媒が各構成機器を循環することで、凝縮塔2内に充填されているブライン7を冷却するようになっているのである。また、凝縮器42の近傍には、凝縮器42に空気を供給するためのファン等の送風機46が設けられている。
ブライン回路Cは、凝縮塔2と、ブラインポンプ8と、吸着剤冷却器13a及び吸着剤冷却器13bとがブライン配管54で順次接続されて構成されている。凝縮塔2は、設置面積の低減を図るために筒状に構成されており、ブライン7を貯留するブラインタンクとしての機能を有している。ブライン7は、たとえばプロピレングリコールやガソリン、灯油といった石油系物質等で構成される不凍液である。このブライン7は、冷媒回路Bが制御されることによって、所定の温度範囲(たとえば、1~3℃程度の範囲)を維持するようになっている。つまり、凝縮塔2内では、ブライン7が冷却されることでブライン7が攪拌されるようになっており、温度の調節がされているのである。
まず、冷媒回路Bを動作させて、冷媒蒸発器44の温度を低下させる。具体的には、圧縮機41を駆動させ、冷媒を循環させることによって、凝縮塔2内に設けられている冷媒蒸発器44の温度を低下させる。このとき、凝縮塔2内に充填されているブライン7が所定の温度まで低下することになる。そして、ブライン7が所定の温度に達したら、圧縮機41の駆動を停止する。
上述したように、フレーム枠120内では、冷凍機6が最上段に配置され、以下順番にエアギャップ110、冷却エリア、発熱エリアが形成されている。また、空気を大気に排出するための排出口10は、アイランド内ピット122、つまり発熱エリアよりも下方となる位置に設置されている。さらに、ガソリン脱着用配管35は、吸脱着塔4a及び吸脱着塔4bに接続させるために、冷却エリアに配置されている。つまり、吸気口11を吸脱着塔4a及び吸脱着塔4bの近傍に設け、サイドフレーム側から脱着用空気を吸気するようにしているのである。
Claims (10)
- ガソリンタンクから排出されたガソリンベーパを吸引するガソリンベーパポンプと、
内部にブラインが充填され、前記ガソリンベーパポンプにより吸引されたガソリンベーパを冷却する凝縮塔と、
前記ガソリンベーパポンプにより吸引されたガソリンベーパを吸着剤により吸着し、前記吸着剤に吸着したガソリンベーパを脱着する吸脱着塔と、
前記吸脱着塔に脱着用空気を供給する脱着用ポンプと、
前記ガソリンベーパ、前記凝縮塔、前記吸脱着塔及び前記脱着用ポンプを内部に収容するフレーム枠と、を有し、
前記フレーム枠内において、前記凝縮塔及び前記吸脱着塔を前記ガソリンベーパポンプ及び前記脱着用ポンプよりも上方位置に配置する
ことを特徴とするガソリンベーパ回収装置。 - 前記凝縮塔内部に充填されるブラインを冷却するための冷凍機を備え、
前記フレーム枠内において、前記冷凍機を最上部に配置する
ことを特徴とする請求項1に記載のガソリンベーパ回収装置。 - 前記冷凍機、前記ガソリンベーパ、前記凝縮塔、前記吸脱着塔及び前記脱着用ポンプが水平方向に設けられるパネルで仕切られた空間に配置される
ことを特徴とする請求項2に記載のガソリンベーパ回収装置。 - 前記吸脱着塔での前記ガソリンベーパ吸着後の空気を導通する大気排出用配管を設け、
前記大気排出用配管を、前記ガソリンベーパポンプ及び前記脱着用ポンプの収容空間を経由させる
ことを特徴とする請求項1~3のいずれか一項に記載のガソリンベーパ回収装置。 - 前記大気排出用配管の端部に設けられている排出口を、前記ガソリンベーパポンプ及び前記脱着用ポンプの収容空間よりも下方に設置している
ことを特徴とする請求項4に記載のガソリンベーパ回収装置。 - 前記排出口を水平方向から鉛直方向下向きの範囲内に向けている
ことを特徴とする請求項5に記載のガソリンベーパ回収装置。 - 前記吸脱着塔の前記吸着剤に吸着された前記ガソリンベーパを脱着するための脱着用空気を導通するガソリン脱着用配管を設け、
前記ガソリン脱着用配管の端部に設けられている吸気口を前記排出口の設置位置と同等以上の高さに設置している
ことを特徴とする請求項5又は6に記載のガソリンベーパ回収装置。 - 前記吸気口を前記排出口よりも高い位置に設置するものにおいて、
前記吸気口を水平方向に向け、前記排出口を鉛直方向下向きに向けている
ことを特徴とする請求項7に記載のガソリンベーパ回収装置。 - 前記吸気口と前記排出口とを同等の高さに設置するものにおいて、
前記吸気口と前記排出口とを異なる方向に向けている
ことを特徴とする請求項7に記載のガソリンベーパ回収装置。 - 前記吸気口を水平方向から鉛直方向上向きの範囲内に向けている
ことを特徴とする請求項7~9のいずれか一項に記載のガソリンベーパ回収装置。
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CN2008801304543A CN102099088A (zh) | 2008-10-27 | 2008-10-27 | 汽油蒸气回收装置 |
PCT/JP2008/069403 WO2010049981A1 (ja) | 2008-10-27 | 2008-10-27 | ガソリンベーパ回収装置 |
JP2010535525A JP5586472B2 (ja) | 2008-10-27 | 2008-10-27 | ガソリンベーパ回収装置 |
TW097145675A TW201016300A (en) | 2008-10-27 | 2008-11-26 | Gasoline vapor recovery apparatus |
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CN102719197A (zh) * | 2012-04-17 | 2012-10-10 | 中国轻工业长沙工程有限公司 | 松节油回收系统 |
KR101439172B1 (ko) | 2012-07-19 | 2014-09-11 | 가부시끼가이샤 다쓰노 | 급유 장치 |
JP2015124982A (ja) * | 2013-12-27 | 2015-07-06 | 株式会社前川製作所 | ヒートポンプ式乾燥装置及びその運転方法 |
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KR101262607B1 (ko) * | 2011-12-09 | 2013-05-08 | 기아자동차주식회사 | 하이브리드 차량의 증발가스 배출 구조 |
ES2814352T3 (es) * | 2012-11-29 | 2021-03-26 | Mitsubishi Electric Corp | Dispositivo de acondicionamiento de aire |
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JPH1111596A (ja) * | 1997-06-20 | 1999-01-19 | Tokico Ltd | 給油装置 |
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