CN221940138U - Powder hydrogen production device - Google Patents
Powder hydrogen production device Download PDFInfo
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- CN221940138U CN221940138U CN202420641589.2U CN202420641589U CN221940138U CN 221940138 U CN221940138 U CN 221940138U CN 202420641589 U CN202420641589 U CN 202420641589U CN 221940138 U CN221940138 U CN 221940138U
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- Prior art keywords
- reactor
- powder
- film strip
- film
- hydrogen
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 76
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 76
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000000843 powder Substances 0.000 title claims abstract description 59
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 7
- 230000007062 hydrolysis Effects 0.000 claims abstract description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 19
- 239000002002 slurry Substances 0.000 abstract description 16
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000005868 electrolysis reaction Methods 0.000 description 6
- 239000000956 alloy Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052987 metal hydride Inorganic materials 0.000 description 3
- 150000004681 metal hydrides Chemical class 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910052990 silicon hydride Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- CSDQQAQKBAQLLE-UHFFFAOYSA-N 4-(4-chlorophenyl)-4,5,6,7-tetrahydrothieno[3,2-c]pyridine Chemical compound C1=CC(Cl)=CC=C1C1C(C=CS2)=C2CCN1 CSDQQAQKBAQLLE-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000003011 anion exchange membrane Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- RSHAOIXHUHAZPM-UHFFFAOYSA-N magnesium hydride Chemical compound [MgH2] RSHAOIXHUHAZPM-UHFFFAOYSA-N 0.000 description 1
- 229910012375 magnesium hydride Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model discloses a powder hydrogen production device, which relates to the technical field of hydrogen production devices and comprises the following components: a layer of powder for producing hydrogen by hydrolysis is loaded on one or two sides of the film strip, and the film strip is wound on the winding core; the reactor is internally provided with a water storage cavity; the film tape driving mechanism comprises a driving motor, a winding drum and a bracket, wherein the film tape driving mechanism is arranged in the reactor, a winding core of the film tape is sleeved on the bracket, the winding drum is sleeved on an output shaft of the driving motor, and the outer end of the film tape is wound on the winding drum. The utility model loads hydrogen production powder on the film strip, controls the film strip to pass through water at a certain speed, rapidly generates hydrogen after the powder contacts with the water, and controls the reacted film strip to be wound on a winding drum by a driving motor to complete recovery work; by controlling the rotation speed of the driving motor, the amount of powder input into the reactor in unit time can be accurately controlled; the film strip driving mechanism recovers the film strip after the reaction, and a large amount of slurry is prevented from accumulating in the reactor.
Description
Technical Field
The utility model relates to the technical field of hydrogen production devices, in particular to a powder hydrogen production device.
Background
At present, the main flow hydrogen production process modes include coal gasification hydrogen production, methanol hydrogen production, water electrolysis hydrogen production and natural gas hydrogen production. The water electrolysis hydrogen production is mainly divided into alkaline water electrolysis, proton exchange membrane water electrolysis, high-temperature solid oxide water electrolysis and solid polymer anion exchange membrane water electrolysis, and besides the hydrogen production modes, a novel hydrogen production mode, namely powder hydrogen production, is developed in recent years, and the powder can be made of nano silicon powder, magnesium powder, aluminum powder and other materials.
For example, the Chinese patent of patent number 202211215363.8 discloses a silicon/metal hydride composite material for preparing hydrogen by rapid hydrolysis and a preparation method thereof, wherein the composite material takes silicon and metal hydride as raw materials, and the metal hydride is one of calcium hydride, magnesium hydride and sodium hydride; the composite material does not consume electric energy and heat energy when discharging hydrogen, and has higher reaction rate, conversion rate and hydrogen discharge capacity; the raw material sources are wide, and the cost is low; the reaction with water does not need an external strong alkali environment, so that the safety is high; the by-product is environment-friendly, and no toxic and harmful gas is generated.
Also, the Chinese patent No. 202010370344.7 discloses a compound which can instantaneously generate high concentration hydrogen when dissolved in water and a preparation method thereof, hydrogen is introduced into a closed container filled with nano silicon powder, and is solidified for 1-2h under the conditions of low temperature and high pressure of less than 20 ℃ and pressure of more than 5Mpa, thus obtaining the compound which can instantaneously generate high concentration hydrogen when dissolved in water.
The utility model patent number 201721480755.1 of China discloses a powder-adding hydrogen production device, which comprises an electronic control unit, a reaction cavity, an alloy powder storage box and a water tank, wherein the water tank is communicated with the reaction cavity, and a powder pump capable of pumping alloy powder in the alloy powder storage box into the reaction cavity is arranged between the reaction cavity and the alloy powder storage box. The method is suitable for the hydrogen production mode of the reaction of the alloy material and water, has high safety performance, and can filter the hydrogen generated by the reaction to improve the purity of the hydrogen. The above patents disclose materials and devices for powder hydrogen production, respectively.
However, existing powder hydrogen plants suffer from several problems, including: 1. the reaction speed is low, and the input powder amount is not easy to control; 2. the powder is changed into slurry after reaction, and the slurry is difficult to treat and easy to block in a hydrogen preparation device; 3. powders are easily considered as "hazardous chemicals" and are inconvenient to transport.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a powder hydrogen production device.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
Attaching a layer of powder for hydrogen production by hydrolysis to one or two sides of a film strip, wherein the film strip is wound on a winding core;
the reactor is internally provided with a water storage cavity, and a hydrogen outlet is arranged on the reactor;
The film tape driving mechanism comprises a driving motor, a winding drum and a support, wherein the film tape driving mechanism is arranged in the reactor, a winding core of the film tape is sleeved on the support, the winding drum is sleeved on an output shaft of the driving motor, the outer end of the film tape is wound on the winding drum, and a part of the film tape is immersed in water in the reactor.
By adopting the technical scheme, the hydrogen production powder is attached to the film strip, the winding core of the film strip is hung on the bracket, part of the film strip is immersed into water, the powder on the film strip is contacted with the water to produce hydrogen rapidly, the powder reacts with the water to become slurry, and the slurry is still attached to the film strip;
The output shaft of the driving motor drives the winding drum to rotate, the film strip after reaction is wound on the winding drum, meanwhile, unreacted film strip is immersed into water, the conveying speed of the film strip can be controlled by controlling the rotating speed of the output shaft of the driving motor, the powder amount immersed into water in unit time can be accurately regulated by controlling the speed of the film strip, the quick reaction after the contact of the powder and water can be ensured, slurry is prevented from being accumulated in the reactor, and the reactor is blocked.
Preferably, the reactor comprises a box body and an upper cover which are detachably connected, a groove is formed along the periphery of the upper end of the box body, and a sealing ring is embedded in the groove.
By adopting the technical scheme, the sealing performance between the box body and the upper cover can be improved by the sealing ring, because the film strip needs to be replaced after being used, the upper cover has the function of being convenient for personnel to adjust the path of the film strip after passing through the reactor, and is convenient for regularly cleaning the inside of the reactor.
Preferably, the box body and the upper cover are fastened and connected through a plurality of bolts.
Through adopting above-mentioned technical scheme, the upper cover is placed behind the box, and a plurality of bolts guarantee the firm connection of box and upper cover, improve the sealing performance between sealed box and the upper cover.
Preferably, the upper cover is provided with a water injection port and a hydrogen outlet, and the box body is provided with a wire outlet.
Through adopting above-mentioned technical scheme, the water injection mouth is used for importing raw materials water to the reactor in, and the hydrogen export is used for exporting the inside hydrogen that generates of reactor, and driving motor's power cord passes through this wire outlet hole and connects external power source, uses the sealant seal between power cord and the box.
Preferably, a guide roller is disposed in the reactor, and the film strip is wound around the guide roller.
Through adopting above-mentioned technical scheme, film area and film area actuating mechanism's height is greater than the guide roll, and the film area is walked around from the guide roll bottom after stretching into the reactor, makes the film area pass through from the reactor inboard through the guide roll, can increase the stroke of film area in the reactor, improves the powder on the film area and reaches the effect of abundant reaction in the reaction time of reactor, even the reactor water level is lower, the film area also can contact the water in the reactor.
Preferably, the driving motor is fixed on a supporting plate, the supporting plate is arranged along the horizontal direction, and one end of the supporting plate is fixedly connected with the outer wall of the reactor.
Through adopting above-mentioned technical scheme, the backup pad plays the effect of supporting driving motor and reel.
Preferably, the support is L-shaped, and one end of the support is fixedly connected with the outer wall of the reactor.
By adopting the technical scheme, the bracket plays a role in supporting the film strip.
Preferably, one end of the bracket, which is far away from the reactor, is in threaded connection with a limit nut.
Through adopting above-mentioned technical scheme, after the film area was hung at the support, screw up stop nut on the support, restrict the film area and break away from the support through stop nut, play limiting displacement.
Preferably, a drain outlet is formed in the lower side wall of the reactor, and a sealing plug is detachably connected in the drain outlet.
By adopting the technical scheme, the powder on the film strip reacts with water to generate slurry, and the trace slurry possibly falls off from the film strip and falls to the bottom of the reactor, so that the inside of the reactor needs to be cleaned after a period of use.
Compared with the related art, the powder hydrogen production device provided by the utility model has the following beneficial effects:
1. The utility model attaches the hydrogen production powder to the film strip, the film strip driving mechanism controls the film strip to pass through the reactor at a certain speed, the hydrogen production powder on the film strip can quickly generate hydrogen after contacting with water in the reactor, the hydrogen production powder reacts to form slurry, and the film strip driving mechanism controls the film strip after the reaction to be wound on the winding drum to complete the recovery work.
2. The powder is attached to the film strip, the powder is fully contacted with water in the reactor, the reaction speed of hydrogen production can be improved, and the amount of the powder input into the reactor in unit time can be accurately controlled by controlling the rotating speed of the driving motor.
3. The film belt driving mechanism recovers the film belt after reaction, and meanwhile, the film belt can recover the slurry on the film belt, so that a large amount of slurry can be prevented from being accumulated in the reactor, and the problem of slurry expansion is solved.
Drawings
FIG. 1 is a perspective view of a powder hydrogen plant of the present utility model;
FIG. 2 is a second perspective view of the powder hydrogen plant of the present utility model;
FIG. 3 is a perspective view of a housing of the present utility model;
Fig. 4 is a second perspective view of the case of the present utility model.
Reference numerals: 10. a film strip; 20. a reactor; 201. a case; 202. an upper cover; 203. a seal ring; 204. a bolt; 205. a water filling port; 206. a hydrogen outlet; 207. sealing the plugs; 208. a wire outlet hole; 30. a film tape drive mechanism; 301. a driving motor; 302. a reel; 303. a bracket; 304. a guide roller; 305. a support plate; 306. and (5) limiting the nut.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
In the description of the present utility model, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
As shown in fig. 1 to 4, the present embodiment provides a powder hydrogen production apparatus comprising: the film strip 10, the reactor 20 and the film strip driving mechanism 30, wherein the film strip 10 is wound on a winding core, one or two surfaces of the film strip 10 are adhered with a layer of powder for hydrolysis hydrogen production, the powder can be sodium borohydride, nano magnesium powder or nano aluminum powder, and the like, and the specific materials of the powder are not limited; the powder may be glued to the surface of the film strip 10 or sprayed onto the surface of the film strip 10.
Further, the reactor 20 is in a box structure, and the internal cavity of the reactor 20 is a water storage cavity and stores water for hydrogen production. A hydrogen outlet 206 is provided in the reactor 20, and hydrogen generated in the reactor 20 is externally output through the hydrogen outlet 206.
The film strip driving mechanism 30 is used for continuously immersing the film strip 10 in water in the reactor 20, and after the powder on the film strip 10 reacts with the water to produce hydrogen, the film strip driving mechanism 30 recovers the reacted film strip. Specifically, the film strip driving mechanism 30 includes a driving motor 301, a reel 302, and a bracket 303, and the bracket 303 and the driving motor 301 are symmetrically disposed on the left and right sides of the inner wall of the reactor 20, respectively. The winding core of the film strip 10 is sleeved on the bracket 303, the bracket 303 is used for hanging the film strip 10, and when the film strip 10 is used up, the film strip 10 is taken off from the bracket 303, so that a new film strip 10 can be replaced.
The reel 302 is sleeved on the output shaft of the driving motor 301, the outer end of the film strip 10 is wound on the reel, the driving motor 301 is used for driving the reel 302 to rotate, and the reel 302 is used for winding the reacted film strip 10. When the output shaft of the driving motor 301 rotates, the film strip 10 after the reaction is wound up by the winding drum 302.
In the application, the hydrogen production powder is attached to the film strip 10, the film strip driving mechanism 30 controls the film strip 10 to pass through the inside of the reactor 20 at a certain speed, the hydrogen production powder on the film strip 10 can quickly generate hydrogen after contacting with water in the reactor 20, and the hydrogen is output from the hydrogen outlet 206; the hydrogen production powder reacts to form slurry, and the film strip driving mechanism 30 controls the film strip 10 after the reaction to be wound on the winding drum 302, so that the recovery work of the film strip 10 and the slurry is completed.
In this embodiment, the reactor 20 includes a case 201 and an upper cover 202, the case 201 and the upper cover 202 are detachably connected, a groove is formed along a circumference of an upper end of the case 201, a sealing ring 203 is embedded in the groove, and when the case 201 and the upper cover 202 are connected, the sealing ring 203 seals between the case 201 and the upper cover 202. The provision of the cover 202 serves to facilitate personnel in adjusting the path of the film strip after it has passed through the reactor 20 and to facilitate periodic cleaning of the interior of the reactor 20. The case 201 and the upper cover 202 are fastened and connected by a plurality of bolts 204. The upper cover 202 is provided with water injection port 205 and hydrogen outlet 206, and water injection port 205 is used for inputting raw materials water to the reactor 20 in, and hydrogen outlet 206 is used for exporting the inside hydrogen that generates of reactor 20, is provided with wire hole 208 on the box 201, and the power cord of driving motor 301 passes through this wire hole 208 to be connected external power source, uses the sealant to seal between power cord and the box 201.
In this embodiment, the lower side in the reactor 20 is provided with two guide rollers 304, two guide rollers 304 are respectively located right under the reel 302 and the film strip 10, and the outer end of the film strip 10 is wound around the reel 302 after being wound around the bottom of the two guide rollers 304. The guiding roller 304 plays a role in guiding the film strip 10, so that the travel of the film strip 10 in the reactor 20 can be increased, the reaction time of powder on the film strip 10 in the reactor 20 can be prolonged, the effect of full reaction can be achieved, the water level in the reactor 20 is lower, and the film strip 10 can also contact water in the reactor 20.
In the present embodiment, a support plate 305 is further included, the support plate 305 is fixed to the outer wall of the reactor 20 in a horizontal direction, the driving motor 301 is fixed to the support plate 305, and the support plate 305 plays a role of supporting the reactor 20.
In this embodiment, the bracket 303 is in an L shape, one end of the bracket 303 is fixedly connected to the outer wall of the reactor 20, and the bracket 303 is used for hanging the film strip 10. The end of the bracket 303 far away from the reactor 20 is in threaded connection with a limit nut 306, when the film strip 10 is hung on the bracket 303, the limit nut 306 is screwed on the bracket 303, and the film strip 10 is limited to be separated from the bracket 303 through the limit nut 306, so that the limit effect is achieved.
In the embodiment, a drain outlet is formed on the lower side wall of the reactor 20, and a sealing plug 207 is detachably connected in the drain outlet; the powder on the film strip 10 reacts with water to form slurry, wherein a trace amount of slurry may fall off the film strip 10 and fall to the bottom of the reactor 20, the inside of the reactor 20 needs to be cleaned after a period of use, and sewage can be discharged from the sewage outlet to the outside of the reactor 20.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. A powder hydrogen plant, comprising:
A film strip (10) with a layer of powder for hydrolysis hydrogen production attached to one or both sides, the film strip (10) being wound on a winding core;
The reactor (20) is internally provided with a water storage cavity, and a hydrogen outlet (206) is arranged on the reactor (20);
Film tape drive mechanism (30), it includes driving motor (301), reel (302) and support (303), film tape drive mechanism (30) set up in reactor (20), the core cover of film tape (10) is established on support (303), reel (302) cover is established on the output shaft of driving motor (301), the outer end of film tape (10) is convoluteed on reel (302).
2. The powder hydrogen plant of claim 1, wherein: the reactor (20) comprises a box body (201) and an upper cover (202) which are detachably connected, a groove is formed along the circumference of the upper end of the box body (201), and a sealing ring (203) is embedded in the groove.
3. The powder hydrogen plant of claim 2, wherein: the box body (201) and the upper cover (202) are fixedly connected through a plurality of bolts (204).
4. A powder hydrogen plant as claimed in claim 3, wherein: the upper cover (202) is provided with a water filling port (205) and a hydrogen outlet (206), and the box body (201) is provided with a wire outlet hole (208).
5. The powder hydrogen plant of claim 1, wherein: a guide roller (304) is arranged in the reactor (20), and the film strip (10) is wound on the guide roller (304).
6. The powder hydrogen plant of claim 1, wherein: the driving motor (301) is fixed on a supporting plate (305), the supporting plate (305) is arranged along the horizontal direction, and one end of the supporting plate (305) is fixedly connected with the outer wall of the reactor (20).
7. The powder hydrogen plant of claim 1, wherein: the support (303) is L-shaped, and one end of the support (303) is fixedly connected with the outer wall of the reactor (20).
8. The powder hydrogen plant of claim 1, wherein: and one end of the bracket (303) far away from the reactor (20) is in threaded connection with a limit nut (306).
9. The powder hydrogen plant of claim 1, wherein: a drain outlet is formed in the lower side wall of the reactor (20), and a sealing plug (207) is detachably connected in the drain outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420641589.2U CN221940138U (en) | 2024-03-31 | 2024-03-31 | Powder hydrogen production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420641589.2U CN221940138U (en) | 2024-03-31 | 2024-03-31 | Powder hydrogen production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221940138U true CN221940138U (en) | 2024-11-01 |
Family
ID=93239594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420641589.2U Active CN221940138U (en) | 2024-03-31 | 2024-03-31 | Powder hydrogen production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221940138U (en) |
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- 2024-03-31 CN CN202420641589.2U patent/CN221940138U/en active Active
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