WO2016152515A1 - 除湿装置 - Google Patents
除湿装置 Download PDFInfo
- Publication number
- WO2016152515A1 WO2016152515A1 PCT/JP2016/057292 JP2016057292W WO2016152515A1 WO 2016152515 A1 WO2016152515 A1 WO 2016152515A1 JP 2016057292 W JP2016057292 W JP 2016057292W WO 2016152515 A1 WO2016152515 A1 WO 2016152515A1
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- WIPO (PCT)
- Prior art keywords
- dehumidifying
- hollow fiber
- fiber membrane
- adsorption
- air
- Prior art date
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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
- B01D53/26—Drying gases or vapours
-
- 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
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
-
- 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
- B01D53/22—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 diffusion
- B01D53/229—Integrated processes (Diffusion and at least one other process, e.g. adsorption, absorption)
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/268—Drying gases or vapours by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/08—Hollow fibre membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
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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
Definitions
- the present invention relates to a dehumidifying device for dehumidifying compressed air used in a vehicle (for example, a railway vehicle).
- Patent Document 1 discloses a compression device for generating compressed air used for generating a braking force in a railway vehicle.
- this compression device the air compressed by the air compression unit is cooled by the aftercooler and dehumidified by the dehumidifier. This air is then stored in a compressed air tank.
- a dehumidifying device for dehumidifying the compressed air described above for example, an adsorption type or hollow fiber membrane type dehumidifying device using an adsorbent capable of adsorbing moisture in the air is known.
- the adsorption-type dehumidifying device can easily cope with a device having high dehumidifying performance requirements (also compatible with ISO8573 class 2). However, in this dehumidifier, it is necessary to regenerate the desiccant. On the other hand, the hollow fiber membrane type can be used continuously because it is not necessary to regenerate the desiccant. However, to increase the dehumidifying performance, it is necessary to increase the size. Moreover, the dehumidification of compressed air can be performed continuously using two adsorption type dehumidifiers.
- two adsorption-type dehumidifiers are connected in parallel, and when one of the dehumidifiers is dehumidified, a part of the dry air is flowed to the other (referred to as purge). That is, the other adsorbent is dried so that it can be used again as an adsorbent. Then, at the time of dehumidification on the other side, one side is purged to dry the adsorbent so that it can be used again as an adsorbent. Therefore, a switching valve for switching between the two adsorption-type dehumidifiers and an electromagnetic valve and a control circuit for driving the switching valve are required. Therefore, there is a problem that the system is complicated and expensive.
- An object of the present invention is to enable a dehumidifier to be miniaturized while having high dehumidifying performance.
- a dehumidifying device is a dehumidifying device for dehumidifying air used in a vehicle, and includes a hollow fiber membrane through which air from an upstream side passes, and the hollow fiber membrane A hollow fiber membrane type dehumidifying part that dehumidifies air and discharges it downstream, and an air exhausted from the hollow fiber membrane type dehumidifying part is supplied, and has an adsorbent that adsorbs moisture contained in the air, An adsorptive dehumidifying unit that dehumidifies the air with the adsorbent.
- FIG. 1 It is a perspective view which shows the structure of the dehumidification apparatus which concerns on embodiment of this invention. It is a top view of the dehumidification apparatus shown in FIG. It is a right view of the dehumidification apparatus shown in FIG. 1, Comprising: It is a figure which shows an internal structure about a one part component.
- the dehumidifying device 1 can be applied as a dehumidifying device for dehumidifying compressed air used in a railway vehicle.
- the dehumidifying device 1 is not limited to the dehumidifying device used in the railway vehicle, and may be used in a vehicle other than the railway vehicle.
- FIG. 1 is a perspective view showing a configuration of a dehumidifying apparatus 1 according to an embodiment of the present invention.
- FIG. 2 is a plan view of the dehumidifying device 1.
- FIG. 3 is a right side view of the dehumidifying device 1 and shows the internal structure of some of the components.
- the direction indicated by the arrow described as “front” is referred to as the front side or the front side
- the direction indicated by the arrow described as “rear” is referred to as the rear side or the rear side
- the direction indicated by the arrow described as “right” is referred to as the right side
- the direction indicated by the arrow described as “left” is referred to as the left side
- the direction indicated by the arrow described as “up” is defined as the upper side or the upper side.
- the direction indicated by the arrow labeled “down” is referred to as the lower side or the lower side.
- the dehumidifying device 1 is mounted on a railway vehicle (not shown) and is used to dehumidify compressed air used for generating a braking force in the railway vehicle.
- Air compressed air
- the compressed air dehumidified by the dehumidifying device 1 is stored in a compressed air tank (not shown) disposed on the downstream side of the dehumidifying device 1.
- the compressed air stored in the compressed air tank in this way is used as necessary.
- the dehumidifier 1 includes a drain separator 2 (drain separator), a hollow fiber membrane dehumidifier 10, and an adsorption dehumidifier 6, which are connected to each other. .
- the drain separator 2 is for removing the drain (oil moisture etc.) contained in the compressed air produced
- the drain separator 2 includes a housing 3 (drain separation portion housing) and a drain separation main body portion 4 provided in the housing 3.
- the compressed air flowing into the drain separator 2 flows from the upper side to the lower side along the spiral flow path 5 formed in a spiral shape, and then the drain separation main body 4 is moved from the lower side to the upper side. Flowing. At this time, the drain contained in the compressed air is removed from the compressed air by adhering to the drain separating body 4 when passing through the drain separating body 4.
- the drain separation main body 4 is constituted by an aluminum crusher formed of aluminum fibers or the like formed in a lump shape so as to be entangled with each other. Thereby, in the drain separator 2, the water
- the compressed air from which the drain has been separated by the drain separator 2 is directed from the drain separation main body portion 4 to the hollow fiber membrane dehumidifying portion 10 through one of the two drain separator side outlets 2a and 2b (see FIG. 2). Leaked.
- the hollow fiber membrane type dehumidifying part 10 is formed by combining a plurality of dehumidifying main body parts 11 with each other.
- the compressed air from which the drain has been removed by the drain separator 2 described above is dehumidified by passing through the hollow fiber membrane dehumidifier 10.
- the hollow fiber membrane type dehumidification part 10 has the two dehumidification main-body parts 11 and the base part 20, as shown in FIGS.
- Each dehumidification main-body part 11 is a hollow fiber membrane type dehumidification part which has the mutually same shape.
- the dehumidifying body 11 includes a housing 12 (hollow fiber membrane dehumidifying part housing) and a plurality of hollow fiber membranes 15 provided in the housing 12. .
- the housing 12 is a portion formed in a cylindrical shape, and has two straight portions 13a and 13b and a curved portion 14, which are integrally formed.
- the hollow fiber membrane 15 is disposed across one straight portion 13a, the curved portion 14, and the other straight portion 13b.
- the two straight portions 13a and 13b are cylindrical portions that extend in a straight line, and are provided so as to be parallel to each other with a space therebetween.
- the bending portion 14 is a cylindrical portion formed in a U-shape, and one end portion is provided integrally with one end portion of the linear portion 13a and the other end portion is provided integrally with one end portion of the linear portion 13b. It has been.
- One end side of the housing 12 is provided as a dehumidifying section inlet 12a into which compressed air from the upstream side flows, and the other end side of the housing 12 is downstream of the compressed air dehumidified by the hollow fiber membrane dehumidifying section 10. It is provided as a flowing dehumidifying part outlet 12b.
- the shape of the housing 12 U-shaped, one end side of the hollow fiber membrane 15 is connected to the dehumidifying portion upstream passage 24 as will be described later without using a separate pipe as compared with the linear shape.
- the other end side can be provided in the dehumidifying section downstream passage 25. Furthermore, by making it U shape, compared with the case where it is bent, the flow of air is not inhibited.
- the hollow fiber membrane 15 is constituted by an elongated hollow cylindrical membrane portion having openings at both ends and having a flow path for compressed air formed therein.
- moisture contained in the compressed air passing through the inside permeates to the outside of the membrane portion, thereby generating dehumidified compressed air.
- each hollow fiber membrane 15 is accommodated inside the housing 12 so as to be parallel to each other.
- each hollow fiber membrane 15 is provided so as to extend along the direction in which the housing 12 extends in a state where the opening on one end side opens outward from the dehumidifying portion inlet 12a, and the opening on the other end side. Opens to the outside from the dehumidifying section outlet 12b.
- the base portion 20 is constituted by a block portion 21 formed in a rectangular parallelepiped shape that is long in the left-right direction.
- the block portion 21 is formed with four through holes 22 and 23 penetrating the block portion 21 in the front-rear direction.
- Each of the through holes 22 and 23 is formed to extend linearly in the front-rear direction with an interval in the left-right direction.
- two through-holes 22 formed in the central portion in the left-right direction are provided as input-side air passages 22, respectively.
- the remaining two through holes 23 are provided as output side air passages 23, respectively.
- each input-side air passage 22 is provided as an inlet 22a into which compressed air from the drain separator 2 side flows.
- the rear end 23b of each output-side air passage 23 is provided as an outlet 23b through which compressed air flows out to the adsorption-type dehumidifying unit 6 side.
- Each block portion 21 is formed with holes 24 and 25 that extend downward from the front and rear center portions of the two input side air passages 22 and the two output side air passages 23 and communicate with the outside. .
- holes 24 and 25 that extend downward from the front and rear center portions of the two input side air passages 22 and the two output side air passages 23 and communicate with the outside.
- two holes 24 that communicate each input-side air passage 22 and the outside are provided as a dehumidifying portion upstream-side passage 24.
- the remaining two hole portions 25 are provided as the dehumidifying portion downstream passage 25.
- the hollow fiber membrane type dehumidifying part 10 is configured by combining the two dehumidifying body parts 11 and one base part 20 configured as described above as follows. Specifically, in the hollow fiber membrane type dehumidifying part 10, two dehumidifying body parts 11 are fixed to one base part 20. More specifically, the dehumidifying body portion 11 is connected to the base portion 20 with bolts or the like so that the end portions 12a and 12b communicate with either the dehumidifying portion upstream passage 24 or the dehumidifying portion downstream passage 25. Fixed.
- the end communicating with the dehumidifying portion upstream passage (hole) 24 functions as the dehumidifying portion inlet 12a
- the dehumidifying portion downstream passage functions as the dehumidifying portion outlet 12b.
- the adsorption type dehumidifying part 6 is for further dehumidifying the compressed air dehumidified by the hollow fiber membrane type dehumidifying part 10.
- the adsorption type dehumidifying unit 6 is provided on the downstream side of the hollow fiber membrane type dehumidifying unit 10 and dehumidifies the compressed air from the hollow fiber membrane type dehumidifying unit 10 with an adsorbent capable of adsorbing moisture.
- the adsorption-type dehumidifying part 6 has a casing 7 (adsorption-type dehumidifying part housing) and an adsorption-type dehumidifying main body part 8 provided in the casing 7. Inside the casing 7, adsorption type dehumidifying part side flow paths 6a and 6b for guiding the compressed air dehumidified by the hollow fiber membrane type dehumidifying part 10 to the adsorption type dehumidifying main body part 8 are provided (FIG. 2). reference).
- the adsorption-type dehumidification main body 8 includes an adsorbent 8a (for example, silica gel) and an adsorbent accommodating portion 8b that accommodates the adsorbent 8a.
- the compressed air flowing in from the hollow fiber membrane type dehumidifying part 10 side flows in the adsorption type dehumidifying main body part 8 through the adsorption type dehumidifying part side channels 6a and 6b.
- moisture contained in the compressed air is dehumidified by being adsorbed by the adsorbent 8 a and then flows further downstream through the check valve 9.
- the check valve 9 allows the compressed air dehumidified by the adsorption-type dehumidifying unit 6 to flow downstream from the adsorption-type dehumidifying unit 6, and allows compressed air from the downstream side to adsorb. It is for restricting the flow into 6.
- the moisture adsorbed by the adsorbent 8a of the adsorption-type dehumidifying unit 6 is released from the adsorbent 8a when dry air is fed into the adsorbent 8a (that is, by purging).
- the adsorbent 8a is regenerated by appropriately performing this purge.
- the drain separator 2, the hollow fiber membrane dehumidifying part 10 and the adsorption dehumidifying part 6 configured as described above are fixed to each other as follows.
- the housing 3 of the drain separator 2, the base part 20 of the hollow fiber membrane dehumidifying part 10, and the casing 7 of the adsorption dehumidifying part 6 are arranged in close contact with each other in the front-rear direction. That is, the flat rear side surface of the housing 3 (the rear side surface of the wall portion 2c) and the flat front side surface of the base portion 20 face each other, and the rear side surface of the housing 3 and the front side surface of the base portion 20 face each other. In contact.
- the housing 3 and the base portion 20 are coupled to each other by a fastening screw (fastener) 18 inserted from the front side surface of the wall portion 2c into the insertion hole of the wall portion 2c.
- a fastening screw (fastener) 18 inserted from the front side surface of the wall portion 2c into the insertion hole of the wall portion 2c.
- the flat rear side surface of the base portion 20 and the flat front side surface of the casing 7 face each other
- the rear side surface of the base portion 20 and the front side surface of the casing 7 face each other.
- the base portion 20 and the casing 7 are coupled to each other by a fastening screw 18 (fastener) inserted into the insertion hole of the wall portion 6c from the rear side surface of the wall portion 6c.
- the base portion 20 is sandwiched between the housing 3 and the casing 7.
- the housing 3, the base part 20, and the casing 7 are mutually connected by the some fastening screw 18 (refer FIG. 1).
- the length in the left-right direction of the base portion 20, the length in the left-right direction of the wall portion 2 c of the housing 3, and the length in the length direction of the wall portion 6 c of the casing 7 are the same length.
- the drain separator 2, the hollow fiber membrane type dehumidifying unit 10, and the adsorption type dehumidifying unit 6 are combined with each other and modularized.
- a flow path for compressed air is formed inside the dehumidifier 1.
- the inlets 22a and 22a of the input side air passages 22 communicate with either of the drain separator side outlets 2a and 2b, and the outlets of the output side air passages 23.
- 23b, 23b communicates with either of the adsorption-type dehumidifying section side channels 6a, 6b.
- the rear end 22 b of the input-side air passage 22 is blocked by a wall 6 c formed on the casing 7 of the adsorption-type dehumidifying unit 6.
- the input side air passage 22 can be formed by the through-hole 22 which penetrates the base part 20 (block part 21) in the front-back direction.
- the process of the base part 20 does not become complicated.
- the front end 23 a of the output side air passage 23 is sealed by a wall 2 c formed on the housing 3 of the drain separator 2.
- the output side air passage 23 can be formed by the through-hole 23 which penetrates the base part 20 (block part 21) in the front-back direction. For this reason, the process of the base part 20 does not become complicated.
- the compressed air generated by the air compressor flows into the drain separator 2, passes through the spiral flow path 5, and then passes through the drain separation main body 4. Thereby, the drain contained in compressed air is removed.
- the compressed air from which the drain has been removed in this way flows into the hollow fiber membrane dehumidifying section 10 through one of the drain separator side outlets 2a and 2b.
- Compressed air from the drain separator-side outlet 2a is supplied to the right input side air passage 22 of the two input side air passages 22 formed in the base portion 20, the right dehumidification main body 11, and the right output side. It flows through the air passage 23 in order.
- the compressed air is dehumidified by the hollow fiber membrane 15 when passing through the inside of the dehumidifying main body 11. Thereafter, the compressed air flows into the adsorption-type dehumidifying unit 6 through the adsorption-type dehumidifying unit side flow path 6a.
- the compressed air from the drain separator side outlet 2b is input to the left input side air passage 22 of the two input side air passages 22 formed in the base portion 20, the left dehumidification main body 11, and the left side. It flows through the output side air passage 23 in order.
- the compressed air is dehumidified by the hollow fiber membrane 15 when passing through the inside of the dehumidifying main body 11. Thereafter, the compressed air flows into the adsorption-type dehumidifying unit 6 through the adsorption-type dehumidifying unit side flow path 6b.
- the compressed air is dehumidified by the adsorbent 8a when flowing inside the adsorption-type dehumidifying main body 8, and then flows further downstream through the check valve 9 and is stored in the compressed air tank.
- the moisture contained in the compressed air dehumidified by the hollow fiber membrane dehumidifying unit 10 is adsorbed by the adsorbent 8 a of the adsorption dehumidifying unit 6. That is, according to this configuration, since the compressed air can be dehumidified by both the hollow fiber membrane dehumidifying unit 10 and the adsorption dehumidifying unit 6, the compressed air can be sufficiently dehumidified.
- the compressed air previously dehumidified by the hollow fiber membrane dehumidifying unit 10 is dehumidified by the adsorption dehumidifying unit 6, the amount of water that needs to be dehumidified by the adsorption dehumidifying unit 6 can be reduced. For this reason, since the amount of the adsorbent 8a in the adsorption-type dehumidifying unit 6 can be small, the adsorption-type dehumidifying unit 6 can be configured compactly. Therefore, the dehumidifier 1 can be reduced in size.
- adsorbent 8a necessary for dehumidifying for a predetermined continuous time if an amount of the adsorbent 8a necessary for dehumidifying for a predetermined continuous time is used, two adsorption-type dehumidifying units 6 are provided, and further, a switching valve for switching these and a driving valve for driving the same. There is no need to provide a solenoid valve or control circuit. Therefore, since the system which comprises a dehumidifier is simplified, the whole dehumidifier 1 can be reduced in size.
- the compressed air to be dehumidified by the adsorption dehumidifying unit 6 has already been dehumidified by the hollow fiber membrane dehumidifying unit 10 disposed on the upstream side of the adsorption dehumidifying unit 6. For this reason, the dehumidification load by the adsorption-type dehumidification part 6 can be reduced. Thereby, even if the adsorption type dehumidifying part 6 is reduced in size, the number of times of purging is reduced. For this reason, the usage-amount of dry air required for the reproduction
- the dehumidifying device 1 can be downsized while having high dehumidifying performance.
- the hollow fiber membrane type dehumidification part 10 since the hollow fiber membrane type dehumidification part 10 has the curved part 14, it can avoid that the hollow fiber membrane type dehumidification part 10 becomes long in one direction, and also a hollow fiber membrane type The length of the hollow fiber membrane 15 included in the dehumidifying part 10 can be increased. That is, according to this structure, the hollow fiber membrane type dehumidification part 10 can be reduced in size while ensuring the dehumidification performance of the hollow fiber membrane type dehumidification part 10.
- the hollow fiber membrane type dehumidifying portion 10 is further reduced in size compared to the case where the curved portion is slightly curved.
- the compressed air is sent to the hollow fiber membrane dehumidifying unit 10 and the adsorption dehumidifying unit 6 after the drain is separated by the drain separator 2.
- the dehumidification load of the hollow fiber membrane type dehumidification part 10 and the adsorption type dehumidification part 6 can be reduced.
- the drain separator 2, the hollow fiber membrane dehumidifying unit 10, and the adsorption dehumidifying unit 6 are modularized. For this reason, the drain separator 2, the hollow fiber membrane type dehumidification part 10, and the adsorption type dehumidification part 6 can be easily integrated with respect to each other, or easily attached to each other.
- the drain separator 2 the hollow fiber membrane dehumidifying unit 10, and the adsorption dehumidifying unit 6 are fixed to each other and modularized.
- the present invention is not limited to this and is not modularized. Also good. Specifically, as an example, by connecting a drain separator, a hollow fiber membrane type dehumidifying unit, and an adsorption type dehumidifying unit, which are arranged apart from each other, by a pipe (not shown), the flow of compressed air A path may be formed.
- the housing 3 of the drain separation unit 2, the housing 12 of the hollow fiber membrane dehumidifying unit 10, and the casing 7 of the adsorption dehumidifying unit 6 are coupled to each other, but the present invention is not limited to this.
- the housing 3 of the drain separation part 2, the housing 12 of the hollow fiber membrane type dehumidifying part 10, and the casing 7 of the adsorption type dehumidifying part 6 may be integrally formed.
- the drain separator 2 is provided on the upstream side of the hollow fiber membrane dehumidifying unit 10, but the configuration is not limited thereto, and the drain separator 2 may be omitted.
- the output-side air passage 23 has a configuration in which the front end portion 23a is closed, or another member (not shown) that closes the end portion 23a is provided.
- the shape of the curved portion 14 of the dehumidifying body portion 11 of the hollow fiber membrane dehumidifying portion 10 is formed in a U shape, but the shape is not limited to this, and other shapes may be used. Specifically, the bending portion 14 may have a slightly curved shape. Further, the dehumidifying main body 11 may have a shape that does not have the curved portion 14, and may be formed in a straight line as an example.
- the hollow fiber membrane type dehumidifying part 10 having a plurality of (specifically, two) dehumidifying main body parts 11 has been described as an example.
- the dehumidifying part may have one dehumidifying body part 11.
- the adsorption type dehumidifying unit only needs to dehumidify moisture that could not be dehumidified by the hollow fiber membrane type dehumidifying unit. That is, air that has been dried to some extent is supplied to the adsorption-type dehumidifying unit. For this reason, the amount of the adsorbent is small, and as a result, the adsorption-type dehumidifying unit can be downsized. Therefore, the entire dehumidifying device can be reduced in size.
- the compressed air to be dehumidified by the adsorption type dehumidifying unit is dehumidified by the hollow fiber membrane type dehumidifying unit arranged on the upstream side of the adsorption type dehumidifying unit. For this reason, the dehumidification load of the adsorption type dehumidifying part can be reduced. As a result, the number of purges is reduced even if the adsorption type dehumidifying unit is downsized, so that the amount of air used for regeneration of the adsorbent can be reduced.
- the dehumidifying device can be downsized while having high dehumidifying performance.
- the hollow fiber membrane type dehumidifying part has a curved part.
- the hollow fiber membrane type dehumidifying part can be reduced in size while ensuring the dehumidifying performance of the hollow fiber membrane type dehumidifying part.
- the curved portion is formed in a U shape.
- the hollow fiber membrane type dehumidifying part can be further downsized as compared with the case where the bending part is slightly curved.
- the dehumidifying device further includes a drain separator for separating the drain of the compressed air discharged from the air compressor disposed on the upstream side.
- the hollow fiber membrane type dehumidifying section is supplied with compressed air from which the drain has been separated by the drain separating section.
- the compressed air is sent to the hollow fiber membrane dehumidifying unit and the adsorption dehumidifying unit.
- the dehumidification load of the hollow fiber membrane type dehumidifying part and the adsorption type dehumidifying part can be reduced.
- the drain separation part has a drain separation body part and a drain separation part housing which covers the drain separation body part from the outside.
- the hollow fiber membrane type dehumidifying part has a hollow fiber membrane type dehumidifying part housing that covers the hollow fiber membrane from the outside.
- the adsorption type dehumidifying part includes an adsorbent containing part in which the adsorbent is accommodated, and an adsorption dehumidifying part housing that covers the adsorbent accommodating part from the outside.
- the drain separation unit housing, the hollow fiber membrane type dehumidification unit housing, and the adsorption type dehumidification unit housing include compressed air flowing through the drain separation unit, the hollow fiber membrane type dehumidification unit, and the adsorption type dehumidification unit. They are integrally formed with each other or coupled to each other so as to form a flow path.
- the drain separation unit, the hollow fiber membrane type dehumidifying unit, and the adsorption type dehumidifying unit can be modularized, and can be easily integrated with each other or easily attached to each other.
- the dehumidifying device can be configured in a compact manner while having high dehumidifying performance.
- the present invention is useful as a dehumidifying device for dehumidifying air (for example, compressed air) used in a vehicle (for example, a railway vehicle).
- dehumidifying air for example, compressed air
- a vehicle for example, a railway vehicle.
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
Description
図1は、本発明の実施形態に係る除湿装置1の構成を示す斜視図である。また、図2は、除湿装置1の平面図である。また、図3は、除湿装置1の右側面図であって、その一部の構成要素については内部構造を示す図である。なお、各図において、説明の便宜上、「前」と記載された矢印が指示する方向を前側又は前方と称し、「後」と記載された矢印が指示する方向を後側又は後方と称し、「右」と記載された矢印が指示する方向を右側と称し、「左」と記載された矢印が指示する方向を左側と称し、「上」と記載された矢印が指示する方向を上側又は上方と称し、「下」と記載された矢印が指示する方向を下側又は下方と称する。
ドレン分離器2は、空気圧縮機で生成された圧縮空気に含まれるドレン(油水分等)を除去するためのものである。ドレン分離器2は、図3に示すように、ハウジング3(ドレン分離部ハウジング)と、ハウジング3内に設けられたドレン分離本体部4とを有している。ドレン分離器2では、該ドレン分離器2に流入する圧縮空気が、螺旋状に形成された螺旋流路5に沿って上方から下方へ流れた後、ドレン分離本体部4を下方から上方へ向かって流れる。この際、圧縮空気中に含まれるドレンは、ドレン分離本体部4を通過する際に該ドレン分離本体部4に付着することにより、圧縮空気から除去される。ドレン分離本体部4は、例えば一例として、互いに絡まりあうように塊状に形成されたアルミ繊維等で形成されたアルミクラッシャーによって構成されている。これにより、ドレン分離器2では、圧縮空気に含まれる水分が、おおまかに除去される。ドレン分離器2によってドレンが分離された圧縮空気は、2つのドレン分離器側流出口2a,2b(図2参照)のいずれかを通じて、ドレン分離本体部4から中空糸膜式除湿部10に向けて流出する。
中空糸膜式除湿部10は、複数の除湿本体部11が互いに組み合わせられることにより形成されている。上述したドレン分離器2によってドレンが除去された圧縮空気は、中空糸膜式除湿部10を通過することにより除湿される。
吸着式除湿部6は、中空糸膜式除湿部10によって除湿された圧縮空気を更に除湿するためのものである。吸着式除湿部6は、中空糸膜式除湿部10の下流側に設けられ、水分を吸着可能な吸着剤によって中空糸膜式除湿部10からの圧縮空気を除湿する。
除湿装置1では、空気圧縮機によって生成された圧縮空気が、以下のようにして除湿される。
以上のように、本実施形態に係る除湿装置1では、中空糸膜式除湿部10によって除湿された圧縮空気に含まれる水分が、吸着式除湿部6の吸着剤8aによって吸着される。すなわち、この構成によると、中空糸膜式除湿部10及び吸着式除湿部6の双方によって圧縮空気の除湿を行うことができるため、圧縮空気を十分に除湿することができる。特に中空糸膜式除湿部10で先に除湿された圧縮空気を吸着式除湿部6で除湿するため、吸着式除湿部6で除湿しなければならない水分量が少なくて済む。このため、吸着式除湿部6の吸着剤8aの量が少なくて済むので、吸着式除湿部6をコンパクトに構成することができる。よって除湿装置1を小型化することができる。また、所定の連続時間だけ除湿するのに必要な量の吸着剤8aを用いるようにすれば、吸着式除湿部6を2つ設けて、更にこれを切り替えるための切替弁やそれを駆動するための電磁弁や制御回路を設ける必要もなくなる。したがって、除湿装置を構成するシステムが簡素化するので、除湿装置1全体を小型化することができる。
Claims (5)
- 車両で用いられる空気を除湿するための除湿装置であって、
上流側からの空気が内部を通過する中空糸膜を有し、該中空糸膜によって前記空気を除湿して、下流側に排出する中空糸膜式除湿部と、
前記中空糸膜式除湿部から排出された空気が供給され、該空気に含まれる水分を吸着する吸着剤を有し、該吸着剤によって該空気を除湿する吸着式除湿部と、
を備えている、除湿装置。 - 請求項1に記載の除湿装置において、
前記中空糸膜式除湿部は、湾曲部を有している、除湿装置。 - 請求項2に記載の除湿装置において、
前記湾曲部は、U字状に形成されている、除湿装置。 - 請求項1から請求項3のいずれか1項に記載の除湿装置において、
前記上流側に配置された空気圧縮機から吐出された圧縮空気のドレンを分離するドレン分離部を更に備え、
前記中空糸膜式除湿部には、前記ドレン分離部によって前記ドレンが分離された圧縮空気が供給される、除湿装置。 - 請求項4に記載の除湿装置において、
前記ドレン分離部は、ドレン分離本体部と、該ドレン分離本体部を外側から覆うドレン分離部ハウジングとを有し、
前記中空糸膜式除湿部は、前記中空糸膜を外側から覆う中空糸膜式除湿部ハウジングを有し、
前記吸着式除湿部は、前記吸着剤が内部に収容される吸着剤収容部と、該吸着剤収容部を外側から覆う吸着式除湿部ハウジングと、を有し、
前記ドレン分離部ハウジング、前記中空糸膜式除湿部ハウジング及び前記吸着式除湿部ハウジングは、前記ドレン分離部、前記中空糸膜式除湿部及び前記吸着式除湿部を流れる圧縮空気の流路を形成するように、互いに一体に設けられ又は互いに結合されている、除湿装置。
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SG11201707503XA SG11201707503XA (en) | 2015-03-20 | 2016-03-09 | Dehumidification device |
CN201680017240.XA CN107405566A (zh) | 2015-03-20 | 2016-03-09 | 除湿装置 |
JP2017508189A JPWO2016152515A1 (ja) | 2015-03-20 | 2016-03-09 | 除湿装置 |
EP16768418.2A EP3272410A4 (en) | 2015-03-20 | 2016-03-09 | Dehumidification device |
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JPH078739A (ja) * | 1993-06-19 | 1995-01-13 | Orion Mach Co Ltd | 中空糸膜を使用した除湿装置 |
JPH08155244A (ja) * | 1994-12-05 | 1996-06-18 | Orion Mach Co Ltd | 膜式気体ドライヤ |
JP2001239125A (ja) * | 2000-03-01 | 2001-09-04 | Nabco Ltd | 中空糸膜式除湿装置 |
JP2002136831A (ja) * | 2000-10-31 | 2002-05-14 | Ishikawajima Harima Heavy Ind Co Ltd | 除湿装置 |
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US4783201A (en) * | 1987-12-28 | 1988-11-08 | Rice Arthur W | Gas dehydration membrane apparatus |
US5240472A (en) * | 1992-05-29 | 1993-08-31 | Air Products And Chemicls, Inc. | Moisture removal from a wet gas |
JP2009142800A (ja) * | 2007-12-18 | 2009-07-02 | Smc Corp | 増圧器配管における除湿システム及び除湿方法 |
CN104190167B (zh) * | 2014-08-22 | 2016-05-04 | 华南理工大学 | 一种疏水膜组件与碳纳米层双过滤净化空气的方法及装置 |
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- 2016-03-09 WO PCT/JP2016/057292 patent/WO2016152515A1/ja active Application Filing
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- 2016-03-09 JP JP2017508189A patent/JPWO2016152515A1/ja not_active Ceased
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JPH02147212U (ja) * | 1989-05-19 | 1990-12-13 | ||
JPH078739A (ja) * | 1993-06-19 | 1995-01-13 | Orion Mach Co Ltd | 中空糸膜を使用した除湿装置 |
JPH08155244A (ja) * | 1994-12-05 | 1996-06-18 | Orion Mach Co Ltd | 膜式気体ドライヤ |
JP2001239125A (ja) * | 2000-03-01 | 2001-09-04 | Nabco Ltd | 中空糸膜式除湿装置 |
JP2002136831A (ja) * | 2000-10-31 | 2002-05-14 | Ishikawajima Harima Heavy Ind Co Ltd | 除湿装置 |
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JPWO2016152515A1 (ja) | 2017-12-28 |
EP3272410A4 (en) | 2018-12-19 |
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