JP2019090501A - Gas supply device - Google Patents

Abstract

To provide a gas supply device which enables a user to select whether or not a barrier is attached to a housing which houses a compressor and can ease restrictions on a shape and an attachment portion of the barrier.SOLUTION: A gas supply device (2) is installed at a side of a facility for supplying a hydrogen gas and includes: a compressor (22) which compresses the hydrogen gas; a housing (40) which houses the compressor (22); a support medium (50) which can be attached to an outer surface of the housing (40); and a barrier (60) fixed to the support medium (50).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a gas supply device.

  Conventionally, a hydrogen station, which is a facility for supplying hydrogen gas to a fuel cell vehicle, is known. In general, a hydrogen station includes a dispenser for supplying hydrogen gas to a tank of a fuel cell vehicle, and a gas supply device for supplying hydrogen gas to the dispenser.

  For example, Patent Document 1 discloses a hydrogen gas supply unit (gas supply device) including a compressor that compresses hydrogen gas, a housing that houses the compressor, and a barrier. The housing has a rectangular parallelepiped frame body formed of four columns and beams bridged between the upper ends of adjacent columns, and a plurality of steel plate panels for soundproofing. Each steel plate panel is attached to the upper surface, the front, the right side and the left side of the frame. The barrier has a shape that covers the back of the frame, and is fixed to columns and beams that define the opening on the back of the frame. That is, the barrier also functions as a panel attached to the back of the frame. The thickness of the barrier is often set larger than the thickness of the steel plate panel.

Unexamined-Japanese-Patent No. 2017-155765

  In the gas supply device as described in Patent Document 1, there is a need to select the mode in which the barrier is provided in the housing and the mode in which the barrier is not provided. For example, depending on the location where the gas supply device is installed in the site where the hydrogen station is provided, the barrier may not be necessary.

  Then, in order to meet the above-mentioned needs, it is considered that the housing is configured to include a peripheral wall that surrounds the entire periphery of the compressor, and when a barrier is required, a barrier is added to the outside of the peripheral wall.

  However, in that case, in consideration of the connection strength to the peripheral wall of the barrier, the barrier needs to be fixed to the columns and beams that constitute the housing, so the shape of the barrier and the selection range of the mounting site depend on the arrangement of the columns It is restricted.

  An object of the present invention is to provide a gas supply device which can select whether or not a barrier is attached to a housing for accommodating a compressor, and can relieve restrictions on the shape and attachment site of the barrier.

  As means for solving the above problems, the present invention is a gas supply device installed in a site of a facility that supplies hydrogen gas, and a compressor that compresses hydrogen gas and the compressor are accommodated. A gas supply device is provided, comprising: a housing; a support attachable to an outer surface of the housing; and a barrier fixed to the support.

  In the present gas supply apparatus, since the support and the barrier are provided in addition to the housing, an aspect in which the barrier is attached to the outer surface of the housing via the support and an aspect without the support and the barrier are provided. It is possible to select. Furthermore, it is possible to select the shape and attachment site of the barrier by adjusting the site of the outer surface of the housing to which the support is attached.

  Further, the support includes a plurality of pillars horizontally spaced from one another, and a plurality of beams vertically spaced from one another, and the barriers are respectively provided It is preferable to have a plurality of barrier members having a shape that closes the area surrounded by the columns and the beams and fixed to at least one of the columns and the beams.

  In this way, the handling of the barrier is easier than when the barrier is made of a single piece.

  Furthermore, each barrier member is preferably detachably fixed to at least one of each column and each beam.

  In this way, it is possible to switch between the mode having the barrier and the mode not having the barrier. In addition, by providing an access portion which allows an operator to access the inside of the housing at a portion overlapping with the barrier member in the thickness direction of the outside surface of the outside surface of the housing, the barrier member is removed An operator can access the inside of the housing through the access unit.

  Preferably, the gas supply device further includes a bolt capable of detachably fixing each barrier member to at least one of each column and each beam.

  Also, each column is fixed to the column, each barrier member is detachably fixed to both each column and each beam, and each beam is indirectly connected via each barrier member. Preferably, each beam is fixed to each column, and each beam has a locking portion for locking a hanging tool capable of suspending the beam.

  In this aspect, the suspension tool (the hook of the crane, etc.) is locked to the locking portion of the beam, and the beam and the barrier member fixed to the beam are collectively suspended by removing the barrier member from each column. It becomes possible to suspend by. Therefore, removal of each barrier member becomes easy.

  As described above, according to the present invention, it is possible to select whether or not to attach the barrier to the housing that accommodates the compressor, and to provide a gas supply device capable of alleviating restrictions on the shape and attachment site of the barrier. Can.

It is a figure showing roughly the composition of the hydrogen station of one embodiment of the present invention. It is a perspective view which shows the outline of the gas supply apparatus of one Embodiment of this invention. It is a perspective view which shows the state which the barrier was removed from the gas supply apparatus shown by FIG. It is sectional drawing which shows the circumference | surroundings of a support | pillar. It is an enlarged view which shows the circumference | surroundings of a beam. It is a perspective view which shows the modification of the gas supply apparatus shown by FIG. FIG. 7 is a perspective view of the gas supply device shown in FIG. 6 with the barrier removed;

  A gas supply device 2 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 shows a hydrogen station 1 including a gas supply device 2. The hydrogen station 1 is a facility for filling a tank of a tank mounting device such as the fuel cell vehicle 5 with hydrogen gas. Hereinafter, the hydrogen station 1 will be described based on FIG. 1, and thereafter, the gas supply device 2 constituting a part of the hydrogen station 1 will be described in detail.

  As shown in FIG. 1, the hydrogen station 1 mainly includes a gas supply device 2, a pressure accumulator unit 3, and a dispenser 4.

  The gas supply device 2 supplies the hydrogen gas compressed to a predetermined high pressure state to the dispenser 4. The gas supply device 2 includes a receiving unit 21 for receiving hydrogen gas from a storage tank (not shown), a compressor 22 for compressing the received hydrogen gas into a predetermined high pressure state, a gas inflow line 27, and a gas outflow line. And 28. The dispenser 4 and the receiving unit 21 may not necessarily be provided in the gas supply device 2.

  The compressor 22 is, for example, a reciprocating compressor (reciprocal compressor), and a plurality of stages of compression chambers are provided therein. As shown in FIG. 1, the downstream end of the receiving line 26 is connected to the inlet of the compressor 22, and the hydrogen gas before compression is supplied from the receiving unit 21 to the compressor 22 through the receiving line 26. In each compression chamber, the hydrogen gas sucked into the cylinder through the suction port is pressurized by the reciprocating motion of the piston, and the pressurized hydrogen gas is discharged through the discharge port.

The compressor 22 has, for example, three or more stages of compression chambers provided therein, and the suction pressure is 1 MPa or less, the discharge pressure is 80 MPa or more, and the processing amount is approximately 300 Nm ³ / h or more (the suction pressure is 1 MPa ) Is a large-sized compressor designed to Thus, the hydrogen gas can be continuously and repeatedly supplied to the plurality of pressure accumulators 23 within a predetermined time (for example, one hour).

  The pressure accumulator unit 3 includes a plurality of (three in this embodiment) pressure accumulators 23. Each pressure accumulator 23 is a container for storing high pressure hydrogen gas discharged from the compressor 22. Each pressure accumulator 23 has a capsule shape as shown in FIG. 1 and has the same design pressure (for example, 82 MPa).

  The gas inflow line 27 connects the compressor 22 and the pressure accumulator 23 to each other, and allows high pressure hydrogen gas to flow from the compressor 22 toward the pressure accumulator 23. Specifically, the upstream end of the gas inflow line 27 is connected to the outlet of the compressor 22, and the downstream side of the gas inflow line 27 is branched according to the number of pressure accumulators 23 (in the present embodiment) Branch to 3 lines). And each branch part is connected to the entrance and exit of pressure accumulator 23, respectively.

  As shown in FIG. 1, on each branch downstream of the gas inflow line 27, an on-off valve 27 A that switches the flow and blocking of hydrogen gas is provided. By opening the on-off valve 27A, high-pressure hydrogen gas discharged from the compressor 22 flows into the accumulators 23 through the gas inflow line 27.

  The gas outflow line 28 is a flow path for leading the high pressure hydrogen gas stored in the pressure accumulator 23 to the dispenser 4. Specifically, the upstream side of the gas outflow line 28 is branched according to the number of the pressure accumulators 23, and each branched portion is connected to the downstream side of the on-off valve 27A in the gas inflow line 27. . Each branch portion of the gas outflow line 28 is provided with an on-off valve 28A for switching the flow and blocking of hydrogen gas. Therefore, the high-pressure hydrogen gas stored in the pressure accumulator 23 is guided to the dispenser 4 through the gas outflow line 28 by opening the on-off valve 28A while the on-off valve 27A is closed.

  The gas supply device 2 includes a refrigerator 24 used to cool the compressed hydrogen gas. The refrigerator 24 includes a refrigerant flow passage 24B through which the refrigerant circulates, an evaporation unit 24A provided in the refrigerant flow passage 24B, a compression unit, a condensation unit, and an expansion unit.

  As shown in FIG. 1, the evaporation section 24A is connected to the brine flow channel 37, and performs heat exchange between the refrigerant flowing in the refrigerant flow channel 24B and the brine. This evaporates the refrigerant and cools the brine. Then, the cooled brine flows into the precooler 35 provided in the dispenser 4 and exchanges heat with the hydrogen gas flowing into the precooler 35 from the pressure accumulator 23. Thereby, the compressed hydrogen gas is cooled by the brine. Thus, the refrigerator 24 is indirectly used to cool hydrogen gas by cooling the brine which is the secondary refrigerant.

  The compression unit of the refrigerator 24 compresses the gaseous refrigerant that has flowed out of the evaporation unit 24A. The condensing unit condenses the refrigerant by heat-exchanging the refrigerant flowing out of the compression unit with the air. The expansion unit expands the liquid refrigerant flowing out of the condensation unit. The refrigerant flowing out of the expansion unit flows into the evaporation unit 24A.

  The gas supply device 2 further includes a control unit 29 that controls the operation. The control unit 29 is configured of, for example, an integrated control panel that controls driving of the compressor 22, opening and closing operations of the on-off valves 27A and 28A, driving of the refrigerator 24, driving of the dispenser 4, and the like.

  The integrated control panel and each device (the compressor 22, the refrigerator 24, the dispenser 4 and the like) are connected not by individual wiring but by a field bus or a field network. The integrated control panel may be capable of wireless communication with a portable type control panel such as a tablet. In this case, various data may be displayed on a portable type control panel, and the portable type control panel may be able to perform an operation instruction to each device. That is, by using the portable control panel, the operating condition of each device can be monitored at any place in the hydrogen station 1, and the device can be operated.

  The dispenser 4 is for supplying the fuel cell vehicle 5 with high pressure hydrogen gas supplied from the pressure accumulator 23 through the gas outflow line 28. The dispenser 4 has a precooler 35 for cooling hydrogen gas, and a nozzle 4A for supplying the fuel cell vehicle 5 with the hydrogen gas cooled by the precooler 35. The nozzle 4A is shaped so as to be insertable into a refill port (not shown) of the tank of the fuel cell vehicle 5.

  The precooler 35 comprises, for example, a microchannel heat exchanger, and performs heat exchange between hydrogen gas and brine as described above. Then, the hydrogen gas cooled by the brine is supplied to the tank of the fuel cell vehicle 5 by the nozzle 4A. Further, the brine which has absorbed heat from the hydrogen gas by the heat exchange is sent to the evaporation section 24A by the brine pump 36, and is cooled again by the refrigerant flowing through the refrigerant flow path 24B.

  Thus, the hydrogen gas is efficiently cooled by directly storing the cold heat generated by the refrigerator 24 in a secondary refrigerant such as brine without directly exchanging heat between the refrigerant of the refrigerator 24 and the hydrogen gas. It becomes possible. The secondary refrigerant is not limited to brine, and for example, liquefied carbon dioxide gas can be used instead of brine.

  Next, the configuration of the gas supply device 2 will be described in detail with reference to FIGS. The gas supply device 2 includes the compressor 22 and the refrigerator 24, a housing 40, a support 50, and a barrier 60. In addition, illustration of the compressor 22 and the refrigerator 24 is abbreviate | omitted in FIG.

  The housing 40 accommodates the compressor 22 and the refrigerator 24. The housing 40 has a base plate 41, a peripheral wall 42, a ceiling wall 43, a plurality of columns 44 (see FIG. 4), and a partition wall 45 (see FIG. 2).

  The base plate 41 supports the compressor 22 and the refrigerator 24. The base plate 41 is formed in a rectangular shape.

  The peripheral wall 42 has a shape surrounding the compressor 22 and the refrigerator 24. Specifically, the peripheral wall 42 is formed in a square cylindrical shape that stands up from the edge of the base plate 41. In the present embodiment, the peripheral wall 42 is made of a steel plate panel. A soundproof member is provided on the inner side surface of the peripheral wall 42.

  The ceiling wall 43 is formed in a rectangular shape, and is connected on the peripheral wall 42.

  Each pillar 44 is provided on the inner side surface of the peripheral wall 42, as shown in FIG. In the present embodiment, the column 44 is formed of a bent steel plate, and a part of the outer side surface of the column 44 is exposed to the outside of the peripheral wall 42. That is, in the present embodiment, a part of the outer side surface of the pillar 44 and the outer side surface of the peripheral wall 42 constitute the outer side surface of the housing 40. The circumferential wall 42 may be shaped so as to expose the entire outer surface of the pillar 44 to the outside. In this case, the entire outer surface of the circumferential wall 42 and the outer surface of the pillar 44 constitute the outer surface of the housing 40. The column 44 is fixed to the peripheral wall 42 by a bolt 70.

  The partition wall 45 is, as shown in FIG. 2, a space enclosed by the base plate 41, the circumferential wall 42 and the ceiling wall 43, a compressor accommodating portion for accommodating the compressor 22 and a refrigerator accommodating portion for accommodating the refrigerator 24. Divide into The partition wall 45 is formed in a flat plate shape. The thickness of the partition wall 45 is set larger than the thickness of the peripheral wall 42. In addition, illustration of the partition wall 45 is abbreviate | omitted in FIG.

  The support 50 is fixed to the outer surface of the housing 40. As shown in FIG. 3, the support 50 is detachably fixed to a portion of the outer surface of the housing 40 having a relatively large area. In the present embodiment, the support 50 is fixed to a portion of the outer side surface of the housing 40 that constitutes the compressor storage chamber. The support 50 has a plurality of support columns 51 and a plurality of beams 52. The columns 51 and the beams 52 are arranged in a grid.

  The columns 51 are arranged at equal intervals in the horizontal direction. As shown in FIG. 4, each column 51 is fixed to the outer surface of the column 44 by a bolt 70. Note that the entire outer surface of the column 44 may be covered by the peripheral wall 42, and the column 51 may be fixed to the outer surface of a portion of the peripheral wall 42 overlapping the column 44 in the thickness direction of the peripheral wall 42. An access portion (not shown) is provided at a portion of the circumferential wall 42 located between the columns 51 adjacent to each other, allowing an operator access to the inside of the compressor accommodating portion. In addition, the door etc. which can be opened and closed are mentioned as an access part.

  The beams 52 are arranged at intervals in the vertical direction. As shown in FIG. 5, each beam 52 has a locking portion 52 a that locks a hanging tool (such as a hook of a crane). In the present embodiment, the locking portion 52 a is a hole provided on the upper surface of the beam 52. In addition, each beam 52 is indirectly fixed to the support column 51 not directly. This point will be described later.

  The barrier 60 is detachably fixed to the support 50 by a bolt 70. In the present embodiment, the barrier 60 has a plurality of (nine in the present embodiment) barrier members 61.

  Each barrier member 61 has a shape that closes an area surrounded by each support 51 and each beam 52. Each barrier member 61 is made of a steel plate having a thickness of 6 mm or more. Each barrier member 61 may be formed by welding and reinforcing a 30 × 30 mm or more equilateral angle steel to a steel plate having a thickness of 3.2 mm or more at a distance of 40 cm. As shown in FIG. 5, each barrier member 61 is fixed by bolts 70 to both the columns 51 and the beams 52. For this reason, each beam 52 is indirectly fixed to the support 51 via the barrier member 61. In other words, each beam 52 has a function of connecting the barrier members 61 adjacent to each other in the vertical direction.

  In the present embodiment, the barrier 60 is provided only on a portion of the back surface which is a part of the outer side surface of the housing 40 and constitutes the compressor storage chamber, and constitutes the refrigerator storage chamber of the back surface. At the portion, a plurality of (three in the present embodiment) steel plate panels each attached to a thickness smaller than the barrier 60 are attached.

  As described above, in the gas supply device 2 of the present embodiment, the housing 40 has the outer surface surrounding the entire circumference of the compressor 22, and the gas supply device 2 includes the support 50 and the support 50. Since the barrier 60 is provided, it is possible to select an embodiment in which the barrier 60 is attached to the outer surface via the support 50 and an embodiment in which the support 50 and the barrier 60 are not provided. Furthermore, it is possible to select the shape of the barrier 60 and the attachment portion by adjusting the portion of the outer side surface to which the support 50 is attached.

  In addition, since the barrier 60 has a plurality of barrier members 61, handling of the barrier 60 is easier than in the case where the barrier 60 is formed of a single member.

  Further, each barrier member 61 is detachably fixed to each support 51 and each beam 52, and an access portion is provided at a portion of the peripheral wall 42 located between the support 51 adjacent to each other. By removing the barrier member 61 disposed at a position overlapping the access portion in the thickness direction of the barrier member 61, an operator can enter the housing 40 through the access portion.

  Furthermore, since each beam 52 has the locking portion 52a, removal of each barrier member 61 is facilitated. Specifically, the suspension tool is locked to the locking portion 52a, and the bolts 70 for fixing the barrier member 61 and the columns 51 are removed to thereby fix the beams 52 and the barrier 52 fixed by the bolts 70. It becomes possible to put the members 61 together and to suspend them by a suspending tool. Therefore, removal of each barrier member 61 becomes easy.

  As mentioned above, although embodiment of this invention was described, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is indicated not by the description of the embodiments described above but by the claims, and further includes all modifications within the meaning and scope equivalent to the claims.

  For example, the refrigerator 24 may not be accommodated in the housing 40. In this case, the partition wall 45 is omitted. In addition, when the housing 40 accommodates only the compressor 22, the barrier 60 may be shaped to cover the entire back surface of the outer side surface of the housing 40, or a part of the back surface (required site It may be a shape which only covers).

  Further, as shown in FIGS. 6 and 7, the support 50 includes a first extension 56 fixed to each of the columns 51 with a bolt 70 or the like so as to extend upward from the upper end of each of the columns 51; The second extension 57 connected to the upper end of the first extension 56 in such a manner as to be inclined toward the compressor storage chamber with respect to the extension 56, and the barrier 60 includes each first extension You may further have the 1st additional member 66 fixed to 56 by bolt 70 grade | etc., And the 2nd additional member 67 fixed to each 2nd extension part 57 by bolt 70 grade | etc.,.

  The ceiling wall 43 may be configured to have the same thickness as each barrier member 61.

DESCRIPTION OF SYMBOLS 1 Hydrogen station 2 Gas supply apparatus 3 Accumulator unit 4 Dispenser 22 Compressor 24 Refrigerator 40 Casing 42 Circumferential wall 44 Pillar 50 Support body 51 Pillar 52 Beam 52a Locking part 56 1st extension part 57 2nd extension part 60 Barrier 61 Barrier member 66 first additional member 67 second additional member 70 bolt

Claims (5)

A gas supply device installed in a site of a facility that supplies hydrogen gas,
A compressor for compressing hydrogen gas,
A housing for housing the compressor;
A support attachable to the outer surface of the housing;
And a barrier fixed to the support. In the gas supply device according to claim 1,
The support is
A plurality of posts spaced horizontally from one another;
And a plurality of beams spaced from one another in the vertical direction,
The said barrier is a gas supply apparatus which each has a shape which obstruct | occludes the area | region enclosed by each support | pillar and each beam, and has several barrier members fixed to at least one of each support | pillar and each beam. In the gas supply device according to claim 2,
A gas supply device, wherein each barrier member is detachably fixed to at least one of each column and each beam. In the gas supply device according to claim 3,
A gas supply device, further comprising a bolt capable of detachably fixing each barrier member to at least one of each column and each beam. In the gas supply device according to claim 3 or 4,
Each post is fixed relative to the post,
Each barrier member is detachably fixed to both each pillar and each beam,
Each beam is indirectly fixed to each support via each barrier member,
Each beam has a locking portion for locking a hanger capable of suspending the beam.

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