CN215984173U - Heat exchanger plate for hydrogenation station - Google Patents
Heat exchanger plate for hydrogenation station Download PDFInfo
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- CN215984173U CN215984173U CN202122646386.1U CN202122646386U CN215984173U CN 215984173 U CN215984173 U CN 215984173U CN 202122646386 U CN202122646386 U CN 202122646386U CN 215984173 U CN215984173 U CN 215984173U
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Abstract
The utility model provides a heat exchanger plate for a hydrogenation station, which comprises two chirality symmetrical plates, wherein the edge of each plate is provided with a chilled water inlet and a hydrogen outlet, and the center of each plate is provided with a chilled water outlet and a hydrogen inlet; the front surface of the plate is provided with hydrogen micro-channels which are spirally distributed; the outer end of the hydrogen microchannel is connected with a hydrogen outlet, and the inner end of the hydrogen microchannel is connected with a hydrogen inlet; the back surface of the plate is provided with a chilled water channel which is spirally distributed; the outer end of the chilled water channel is connected with the chilled water inlet, and the inner end of the chilled water channel is connected with the chilled water outlet; chilled water outlet, including a plurality of oval fretwork holes of equidimension not, oval fretwork hole major axis presents spoke form and distributes around the hydrogen entry, and the center of major axis is on same spiral line, and every oval fretwork hole all has the intersection with the innermost circle of chilled water passageway. The utility model disperses the chilled water inlet and outlet with larger flow into a plurality of small holes, improves the compactness and improves the capability of bearing high pressure difference at the center of the plate.
Description
Technical Field
The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger plate for a hydrogenation station.
Background
The heat exchanger is a key device which plays a role in energy conversion in an energy power system. Hydrogen is a clean energy with high energy density and no pollution, China regards the energy as one of strategic development directions of new energy in the future, and has come out of a lot of policies to encourage the construction of infrastructures such as a hydrogen station and the like, and thus has strong demand on a heat exchanger special for the hydrogen station.
At present, the process flow mainly adopted by domestic hydrogenation stations is based on a high-pressure gaseous hydrogen storage and transportation mode, and mainly uses the hydrogen supply of long-tube trailers outside the stations. The long tube trailer transports 20MPa compressed hydrogen into the fixed station from a hydrogen production unit, the hydrogen is unloaded to the high-pressure hydrogen storage tank in the station through the compressor in the hydrogenation station, and when a vehicle hydrogenates, the hydrogen output in the long tube trailer or the hydrogen storage tank is filled into a vehicle-mounted hydrogen storage bottle of a fuel cell automobile through a hydrogenation machine. At present, the pressure grades of vehicle-mounted hydrogen storage bottles which are widely applied internationally mainly comprise 35MPa and 70MPa, the highest fixed hydrogen storage pressure in a hydrogen station of a 35MPa hydrogen fuel battery vehicle is generally 45MPa, and the highest fixed hydrogen storage pressure in the hydrogen station of the 70MPa hydrogen fuel battery vehicle is generally 90 MPa. In the process of unloading 20MPa compressed hydrogen from a long-tube trailer to a 45MPa or 90MPa high-pressure hydrogen storage tank through a compressor, the compressed hydrogen must be rapidly cooled through a special heat exchanger by using low-temperature chilled water so as to improve the compression efficiency, increase the hydrogen storage density and ensure the hydrogen storage safety.
The chilled water for cooling and compressing hydrogen is generally required to reach the low temperature of-7 ℃ to-45 ℃, a high proportion of glycol must be added, the viscosity is high, the flow is about 3 times that of the hydrogen, and the flow resistance is high, so that an asymmetric flow channel is adopted to enlarge the flow area of a cold side when a heat exchanger is designed to reduce the energy consumption for transporting the chilled water.
A printed circuit board heat exchanger (PCHE) is a micro-channel heat exchanger manufactured by applying a solid-phase additive manufacturing technology and adopting diffusion welding processing, has good welding strength and pressure-bearing capacity, and is a preferred form of a heat exchanger special for a hydrogen station at home and abroad at present. Utility model patent CN201720825380.1 provides a printed circuit board heat exchanger with spiral microchannel, thereby compact structure, heat transfer are effectual, the bearing capacity is strong, thereby possess the potentiality that further optimization developed into the special heat exchanger of hydrogen station. The plate shape of the spiral microchannel printed circuit board type heat exchanger is generally close to a square, one cold and hot fluid inlet and outlet is arranged at the center, one cold and hot fluid inlet and outlet is arranged at two corners of four corners, and redundant space and materials are not fully utilized due to the two corners. The cold and hot fluid flow channel can be changed into a wide-narrow asymmetric form, the sizes of the cold and hot fluid inlet and outlet are correspondingly increased or reduced, the inlet and outlet on one side with large flow occupies larger space, so that more redundant space is generated at the center and four corners, the integral compactness of the plate is influenced, particularly, the pressure difference of cold and hot fluid in the heat exchanger for the hydrogenation station is large, and the influence of the obvious difference of the sizes of the cold and hot fluid inlet and outlet on the compactness is more prominent in consideration of the strength limitation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the utility model provides a heat exchanger plate for a hydrogenation station, aiming at solving the problem that the occupied area of a cold fluid inlet and outlet in an asymmetric microchannel of the heat exchanger for the hydrogenation station is too large, so that too much redundant space is generated at the center and four corners of the heat exchanger plate.
The utility model specifically adopts the following technical scheme for realizing the purpose:
a heat exchanger plate for a hydrogenation station comprises two plates, namely a first plate and a second plate, wherein the front surface of the first plate and the front surface of the second plate are in chiral symmetry, the back surface of the first plate and the back surface of the second plate are in chiral symmetry, and when the first plate and the second plate are combined into a heat exchanger, the front surface is aligned to the back surface, and the back surface is aligned to the back surface;
the edge of the plate is provided with a chilled water inlet and a hydrogen outlet; the center of the plate is provided with a chilled water outlet and a hydrogen inlet;
the front surface of the plate is provided with a hydrogen microchannel, the cross section of the hydrogen microchannel is a semicircular groove carved on the front surface, and the hydrogen microchannel is spirally distributed; the outer end of the hydrogen microchannel is connected with a hydrogen outlet, and the inner end of the hydrogen microchannel is connected with a hydrogen inlet; hydrogen spacing areas are reserved between adjacent spiral lines of the hydrogen micro-channels;
the back surface of the plate is provided with a chilled water channel, the cross section of the chilled water channel is a semi-elliptical groove carved on the back surface, and the chilled water channel is spirally distributed; the outer end of the chilled water channel is connected with the chilled water inlet, and the inner end of the chilled water channel is connected with the chilled water outlet; a chilled water interval area is reserved between adjacent spiral lines of the chilled water channel;
the chilled water outlet comprises a plurality of oval hollow holes with different sizes, the oval hollow holes are sequentially arranged from small to large according to long axes, the long axes are distributed around the hydrogen inlet in a spoke shape, the centers of all the long axes are on the same spiral line, and each oval hollow hole is intersected with the innermost circle of the chilled water channel.
The width of the chilled water channel is 2n +1 times of that of the hydrogen microchannel.
The back of the hydrogen microchannel corresponds to a chilled water interval area; the back of the hydrogen spacing area corresponds to a chilled water channel.
The plate is provided with four through holes which are respectively positioned at four corners of the plate, wherein three of the through holes are chilled water inlets, and the other through hole is a hydrogen outlet; the outer ring of the chilled water channel is provided with three branches, and the outer end points of the three branches are respectively connected with the three chilled water inlets.
The beneficial effects are that:
the refrigerating water inlet and outlet with larger flow are distributed into a plurality of small holes, and the redundant space of the plate is utilized, so that the compactness is improved, and particularly, the high pressure difference bearing capacity of the refrigerating water outlet channel at the center of the plate is improved.
Drawings
FIG. 1 is a schematic view of the front face of the panel of the present invention;
fig. 2 is a schematic view of the reverse side of the panel of the present invention.
Detailed Description
The technical scheme of the utility model is explained by combining the attached drawings.
As shown in fig. 1 and 2, a heat exchanger plate for a hydrogen station comprises two plates, which are divided into a first plate and a second plate, wherein the front surface of the first plate and the front surface of the second plate are in chiral symmetry, the back surface of the first plate and the back surface of the second plate are in chiral symmetry, and when the first plate and the second plate are combined into a heat exchanger, the front surfaces are aligned to the back surfaces, and the back surfaces are aligned to the back surfaces;
preferentially, the four through holes are formed in the plate and are respectively positioned at four corners of the plate, wherein three of the through holes are chilled water inlets 1, and the other through hole is a hydrogen outlet 9; the center of the plate is provided with a chilled water outlet 7 and a hydrogen inlet 8;
the front surface 21 of the plate is provided with a hydrogen microchannel 3, the cross section of the hydrogen microchannel 3 is a semicircular groove carved on the front surface 21, and the hydrogen microchannel 3 is spirally distributed; the outer end of the hydrogen microchannel 3 is connected with a hydrogen outlet 9, and the inner end is connected with a hydrogen inlet 8; hydrogen spacing areas 4 are reserved between adjacent spiral lines of the hydrogen micro-channels 3;
the back surface 22 of the plate is provided with a chilled water channel 5, the cross section of the chilled water channel 5 is a semi-elliptical groove carved on the back surface 22, and the chilled water channel 5 is spirally distributed; the outer ring of the chilled water channel 5 is provided with three outer end points which are respectively connected with the three chilled water inlets 1, and the inner end points are connected with a chilled water outlet 7; a chilled water interval area 6 is reserved between adjacent spiral lines of the chilled water channel 5;
the width of the chilled water channel 5 is 2n +1 times of that of the hydrogen microchannel 3;
the back of the hydrogen microchannel 3 corresponds to a chilled water interval area 6
The back of the hydrogen spacing region 4 corresponds to a chilled water channel 5;
chilled water outlet 7 comprises a plurality of oval hollow holes with different sizes, the oval hollow holes are sequentially arranged from small to large according to long axes, the long axes are distributed around hydrogen inlet 8 in a spoke shape, the centers of all the long axes are on the same spiral line, and each oval hollow hole is intersected with the innermost circle of chilled water channel 5.
Claims (4)
1. A heat exchanger plate for a hydrogenation station is characterized by comprising two plates which are divided into a first plate and a second plate, wherein the front surface of the first plate and the front surface of the second plate are in chiral symmetry, the back surface of the first plate and the back surface of the second plate are in chiral symmetry, and when the first plate and the second plate are combined into a heat exchanger, the front surface is aligned to the front surface, and the back surface is aligned to the back surface;
the edge of the plate is provided with a chilled water inlet (1) and a hydrogen outlet (9); the center of the plate is provided with a chilled water outlet (7) and a hydrogen inlet (8);
the front surface (21) of the plate is provided with a hydrogen microchannel (3), the cross section of the hydrogen microchannel (3) is a semicircular groove carved on the front surface (21), and the hydrogen microchannel (3) is spirally distributed; the outer end of the hydrogen microchannel (3) is connected with a hydrogen outlet (9), and the inner end is connected with a hydrogen inlet (8); hydrogen spacing areas (4) are reserved between adjacent spiral lines of the hydrogen micro-channels (3);
the back surface (22) of the plate is provided with a chilled water channel (5), the cross section of the chilled water channel (5) is a semi-elliptical groove carved on the back surface (22), and the chilled water channel (5) is spirally distributed; the outer end of the chilled water channel (5) is connected with the chilled water inlet (1), and the inner end is connected with the chilled water outlet (7); a chilled water interval area (6) is reserved between adjacent spiral lines of the chilled water channel (5);
chilled water export (7), including a plurality of equidimension oval fretwork holes, oval fretwork hole is arranged according to the major axis from little to big in proper order to the major axis presents spoke form and distributes around hydrogen entry (8), the center of all major axes is on same spiral line, every oval fretwork hole all has the intersection with the inner circle of chilled water passageway (5).
2. A heat exchanger plate for a hydrogen station according to claim 1, characterized in that the width of the chilled water channel (5) is 2n +1 times the width of the hydrogen microchannel (3).
3. The heat exchanger plate for a hydrogen refueling station according to claim 1, wherein the back surface of the hydrogen microchannel (3) corresponds to a chilled water compartment area (6); the back surface of the hydrogen spacing region (4) corresponds to a chilled water channel (5).
4. The heat exchanger plate for the hydrogenation station according to claim 1, wherein the plate is provided with four through holes respectively positioned at four corners of the plate, three of the four through holes are a chilled water inlet (1), and the other through hole is a hydrogen outlet (9); the outer ring of the chilled water channel (5) is provided with three branches, and the outer end points of the three branches are respectively connected with the three chilled water inlets (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122646386.1U CN215984173U (en) | 2021-11-01 | 2021-11-01 | Heat exchanger plate for hydrogenation station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122646386.1U CN215984173U (en) | 2021-11-01 | 2021-11-01 | Heat exchanger plate for hydrogenation station |
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| Publication Number | Publication Date |
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| CN215984173U true CN215984173U (en) | 2022-03-08 |
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| CN202122646386.1U Active CN215984173U (en) | 2021-11-01 | 2021-11-01 | Heat exchanger plate for hydrogenation station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983837A (en) * | 2021-11-02 | 2022-01-28 | 北京海德利森科技有限公司 | Special heat exchanger for hydrogenation station |
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- 2021-11-01 CN CN202122646386.1U patent/CN215984173U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983837A (en) * | 2021-11-02 | 2022-01-28 | 北京海德利森科技有限公司 | Special heat exchanger for hydrogenation station |
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