CN212080856U - Hydrogen gas storage buffering filter tank - Google Patents
Hydrogen gas storage buffering filter tank Download PDFInfo
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- CN212080856U CN212080856U CN202020605477.3U CN202020605477U CN212080856U CN 212080856 U CN212080856 U CN 212080856U CN 202020605477 U CN202020605477 U CN 202020605477U CN 212080856 U CN212080856 U CN 212080856U
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Abstract
The utility model relates to a hydrogen gas storage buffering filter tank, including the buffer tank, the buffer tank is the pipe form, and the buffer tank both ends are provided with air inlet and gas outlet respectively, still include heat transfer shell and cartridge filter, the sealed registrate of heat transfer shell is outside the buffer tank, forms the heat transfer intermediate layer between heat transfer shell circumference inner wall and the buffer tank circumference outer wall, be provided with the water conservancy diversion spring in the heat transfer intermediate layer, the water conservancy diversion spring registrate is at the buffer tank outer wall, and water conservancy diversion spring both ends correspond the setting with the exit at heat transfer shell both ends respectively, the cartridge filter is located the buffer tank, and the air inlet intercommunication of cartridge filter one end seal, the other end and buffer tank, the cartridge filter includes interior section of thick bamboo and outer section of thick bamboo of straining, interior. An object of the utility model is to solve or alleviate at least the problem that generates heat and can't block solid particle and get into the service equipment in the present hydrogen buffer tank use, provide a hydrogen gas storage buffering filter tank.
Description
Technical Field
The utility model relates to a new forms of energy equipment technical field, concretely relates to hydrogen gas storage buffering filter tank.
Background
The traditional energy quantity is fixed and has certain pollution, and the application of the clean new energy at present is more and more extensive, and wherein use the most extensively hydrogen, not only the energy that produces is higher during hydrogen burning, and the product after the burning only has water, can not cause the pollution.
In actual use, hydrogen is input to the user equipment after being compressed by the hydrogen compressor, and in order to prevent the impact on the user equipment caused by the large hydrogen pressure, a hydrogen buffer tank is often arranged between the hydrogen compressor and the user equipment. Present hydrogen buffer tank only has buffer function, and hydrogen can make the lateral wall of hydrogen buffer tank generate heat when the transfer in the hydrogen buffer tank, causes the potential safety hazard, and hydrogen can produce some solid particles at the in-process of production and compression simultaneously, and these particles not only can cause the pollution and can also damage the use equipment when hydrogen gets into the use equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, solve or alleviate at least the problem that generates heat and can't block solid particle entering service equipment in the present hydrogen buffer tank use, provide a hydrogen gas storage buffering filter tank.
In order to realize the above purpose, the utility model discloses a technical scheme is:
a hydrogen gas storage buffering filter tank comprises a buffer tank, wherein the buffer tank is in a circular tube shape, an air inlet and an air outlet are formed in two ends of the buffer tank respectively, the hydrogen gas storage buffering filter tank also comprises a heat exchange shell and a filter cartridge, the heat exchange shell is hermetically sleeved outside the buffer tank, a heat exchange interlayer is formed between the circumferential inner wall of the heat exchange shell and the circumferential outer wall of the buffer tank, two ends of the heat exchange shell are respectively provided with an inlet and an outlet, the two inlets and the outlets are respectively communicated to a cooling water pipe network and a recovery water pipe network, a diversion spring is arranged in the heat exchange interlayer, the diversion spring is sleeved on the outer wall of the buffer tank, two ends of the diversion spring are respectively arranged corresponding to the inlets and the outlets in two ends of the heat exchange shell, the ratio of the material diameter value of the diversion spring to the interval value of the heat exchange interlayer is;
the filter cartridge is located in the buffer tank, one end of the filter cartridge is closed, the other end of the filter cartridge is communicated with the air inlet of the buffer tank, the filter cartridge comprises an inner filter cartridge and an outer filter cartridge, and a filter element layer is arranged between the inner filter cartridge and the outer filter cartridge.
In order to further realize the utility model discloses, can prefer following technical scheme for use:
preferably, the heat exchange shell includes end cover, outer protective layer and interior protective layer, two end cover sealing thread fit is at the both ends of buffer tank circumference outer wall, outer protective layer and interior protective layer all are the pipe form, and the outer protective layer fits in the interior protective layer outside, outer protective layer and interior protective layer both ends respectively with two end cover sealing fixed connection, form the heat preservation intermediate layer between outer protective layer and the interior protective layer, the heat preservation intermediate layer intussuseption is filled with insulation material, is provided with exit on the lateral wall of end cover, exit communicates to the heat exchange intermediate layer between buffer tank circumference outer wall and the interior protective layer inner wall.
Preferably, be provided with the elastic connection section between the air inlet of cartridge filter and buffer tank, the elastic connection section includes connecting piece, fixed spring and flexible pipe, the fixed spring both ends are fixed respectively and are provided with a connecting piece, two the connecting piece respectively with the sealed intercommunication of air inlet of cartridge filter and buffer tank, flexible pipe is located fixed spring's the outside and both ends respectively with two connecting piece sealing connection.
Preferably, be provided with the buffer tube that admits air between elastic connection section and the cartridge filter, the buffer tube both ends of admitting air communicate with elastic connection section and cartridge filter respectively, and the axial array interval is provided with a plurality of buffer board in the buffer tube that admits air, one side of buffer board is provided with the breach, and the position of the breach of two adjacent buffer boards sets up in a staggered way.
Preferably, the buffer plate is obliquely arranged, and one end of the buffer plate, which is provided with the notch, is inclined towards one end of the air inlet buffer tube, which is close to the filter cylinder.
Preferably, the buffer plate and the central axis of the air inlet buffer tube form an included angle, the included angle is alpha, and the alpha is 40-60 degrees.
Preferably, the cartridge filter is provided with elastic guide mechanism, elastic guide mechanism includes flexible roller components, flexible roller components sets up the one end of keeping away from the air inlet of buffer tank at the cartridge filter, and flexible roller components includes uide bushing, slide bar and gyro wheel, the quantity of slide bar is two and is located the uide bushing both ends respectively, is provided with expanding spring between two slide bars, and slide bar one end is stretched into in the uide bushing and is provided with the gyro wheel in uide bushing axial sliding connection, other end rotation.
Preferably, the telescopic roller assemblies are two groups which are vertically arranged in a staggered mode.
Preferably, the elastic guide mechanism further comprises a conical spring, the small-diameter end of the conical spring is fixedly sleeved on the circumferential outer wall of the filter cylinder, and the large-diameter end of the conical spring is tangent to the circumferential inner wall of the buffer tank.
Preferably, the buffer tank comprises a tank body and sealing covers, the tank body is in a circular tube shape made of aluminum alloy, the two sealing covers are respectively located at two ends of the tank body and are in threaded sealing connection with the tank body, a sealing ring is arranged between an inner end face of each sealing cover and an end face of the tank body, a side leakage hole corresponding to the sealing ring is arranged on each sealing cover, one end of each side leakage hole is communicated to an outer end face of each sealing cover, and the other end of each side leakage hole is communicated to an inner end face of each sealing cover.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses an be provided with the heat transfer shell, the heat transfer shell is sealed to be registrated outside the buffer tank, forms heat transfer intermediate layer intussuseption between heat transfer shell circumference inner wall and the buffer tank circumference outer wall and leads to there is the circulating coolant liquid, and the coolant liquid takes away the heat of buffer tank, makes the temperature of buffer tank can not be too high, guarantees the security of using; meanwhile, a flow guide spring is arranged in the heat exchange interlayer, and the cooling liquid can flow on the outer wall of the buffer tank along the flow guide spring in a spiral mode, so that the outer wall of the buffer tank is ensured to be cooled uniformly, the temperature difference of the buffer tank cannot occur, and the safety is further guaranteed.
The utility model discloses in still be provided with the cartridge filter, the hydrogen that lets in the buffer tank lets in the cartridge filter earlier, and in hydrogen passed the cartridge filter and got into the buffer tank, the solid particle was intercepted can not get into the service equipment in the cartridge filter, prevents to damage the service equipment.
The utility model discloses a be provided with the elastic connection section between the air inlet of cartridge filter and buffer tank, be provided with the buffer tube that admits air between elastic connection section and the cartridge filter, when hydrogen compressor inputs the buffer tank with hydrogen, advance into the buffer tube that admits air, be provided with the buffer board in the buffer tube that admits air, hydrogen strikes the buffer board that the slope set up, avoid hydrogen direct impact cartridge filter and buffer tank, play the effect of preliminary buffering, elastic connection section makes the air inlet elastic sealing connection of buffer tube and buffer tank of admitting air simultaneously, slowed down the impact force of hydrogen to the buffer tube that admits air, further promoted the utility model discloses a shock-absorbing capacity.
Drawings
FIG. 1 is a schematic structural view of a hydrogen gas storage buffer filtration tank of the present invention;
FIG. 2 is a sectional view of the hydrogen storage buffering filter tank of the present invention;
FIG. 3 is a sectional view of a buffer tank of the hydrogen storage buffer filtration tank of the present invention;
FIG. 4 is a sectional view of the heat exchange shell of the hydrogen storage buffering filter tank of the present invention;
FIG. 5 is a schematic structural view of an end cap of the hydrogen storage buffering filtration tank of the present invention;
FIG. 6 is a schematic structural view of a filter cartridge, an air inlet buffer tube and an elastic connection section of the hydrogen gas storage buffering filter tank of the present invention;
FIG. 7 is a schematic structural view of an elastic connection section of the hydrogen storage buffering filtration tank of the present invention;
FIG. 8 is a sectional view of the elastic connection section of the hydrogen storage buffering filtration tank of the present invention;
FIG. 9 is a sectional view of the inlet buffer tube of the hydrogen storage buffer filtration tank of the present invention;
FIG. 10 is a schematic structural view of a filter cartridge of the hydrogen gas storage buffering filter tank of the present invention;
FIG. 11 is a sectional view showing the structure of a filter cartridge of a hydrogen storage buffering filter tank according to the present invention;
wherein, 1-a buffer tank; 2-a heat exchange shell; 3-a filter cartridge; 4-a flow guide spring; 5-an elastic connecting section; 6-an air intake buffer tube; 7-a buffer plate; 8-telescopic roller components; 9-a conical spring; 101-tank body; 102-a cover; 103-sealing ring; 201-end cap; 202-an outer protective layer; 203-inner protective layer; 204-heat insulating material; 301-an inner filter cartridge; 302-an outer filter cartridge; 303-a filter element layer; 501-connecting piece; 502-a fixed spring; 503-a flexible conduit; 801-a guide sleeve; 802-a slide bar; 803-roller.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-4, a hydrogen gas storage buffer filtering tank comprises a buffer tank 1, the buffer tank 1 is in a circular tube shape, both ends of the buffer tank 1 are respectively provided with an air inlet and an air outlet, the buffer tank 1 comprises a tank body 101 and a sealing cover 102, the tank body 101 is in a circular tube shape made of aluminum alloy, the two sealing covers 102 are respectively positioned at both ends of the tank body 101 and are in threaded sealing connection with the tank body 101, a sealing ring 103 is arranged between the inner end surface of the sealing cover 102 and the end surface of the tank body 101, the sealing cover 102 is provided with a side leakage hole arranged corresponding to the sealing ring 103, one end of the side leakage hole is communicated with the outer end surface of the sealing cover 102, the other end is communicated with the inner end surface of the sealing cover 102, the hydrogen gas storage buffer filtering tank also comprises a heat exchange shell 2 and a filter cartridge 3, the heat exchange shell 2 is hermetically sleeved outside the buffer tank 1, a heat, a diversion spring 4 is arranged in the heat exchange interlayer, the diversion spring 4 is sleeved on the outer wall of the buffer tank 1, two ends of the diversion spring 4 are respectively arranged corresponding to the inlet and the outlet of two ends of the heat exchange shell 2, the ratio of the material diameter value of the diversion spring 4 to the distance value of the heat exchange interlayer is 0.8-1, and the ratio of the pitch value of the diversion spring 4 to the material diameter value of the diversion spring 4 is 0.95-1.05;
the filter cylinder 3 is positioned in the buffer tank 1, one end of the filter cylinder 3 is closed, the other end of the filter cylinder 3 is communicated with the air inlet of the buffer tank 1, the filter cylinder 3 comprises an inner filter cylinder 301 and an outer filter cylinder 302, and a filter element layer 303 is arranged between the inner filter cylinder 301 and the outer filter cylinder 302.
An elastic connecting section 5 is arranged between the filter cartridge 3 and the air inlet of the buffer tank 1, the elastic connecting section 5 comprises a connecting piece 501, a fixed spring 502 and a flexible conduit 503, two ends of the fixed spring 502 are respectively and fixedly provided with one connecting piece 501, the two connecting pieces 501 are respectively communicated with the air inlets of the filter cartridge 3 and the buffer tank 1 in a sealing way, the flexible conduit 503 is positioned at the outer side of the fixed spring 502, and two ends of the flexible conduit are respectively connected with the two connecting pieces 501 in a sealing way; a positioning ring groove is arranged at the joint of the connecting piece 501 and the fixed spring 502, and the end part of the fixed spring 502 is fixed in the positioning ring groove.
Be provided with between elastic connection section 5 and the cartridge filter 3 and admit air buffer tube 6, admit air buffer tube 6 both ends respectively with elastic connection section 5 and cartridge filter 3 intercommunication, the axial array interval is provided with a plurality of buffer board 7 in the buffer tube 6 that admits air, one side of buffer board 7 is provided with the breach, the crisscross setting in position of the breach of two adjacent buffer boards 7.
The baffle 7 is inclined, and the end of the baffle 7 with the notch is inclined towards the end of the air inlet buffer tube 6 close to the filter cartridge 3.
The buffer plate 7 and the central axis of the air inlet buffer tube 6 form an included angle alpha which is 40-60 degrees.
The filter cartridge 3 is provided with an elastic guide mechanism, the elastic guide mechanism comprises a telescopic roller 803 assembly 8, the telescopic roller 803 assembly 8 is arranged at one end of the filter cartridge 3, which is far away from the air inlet of the buffer tank 1, the telescopic roller 803 assembly 8 comprises a guide sleeve 801, two slide bars 802 and rollers 803, the number of the slide bars 802 is two, the two slide bars 802 are respectively positioned at two ends of the guide sleeve 801, a telescopic spring is arranged between the two slide bars 802, one end of each slide bar 802 extends into the guide sleeve 801 and is axially and slidably connected with the guide sleeve 801, and the other end of each slide bar 802; the telescopic roller 803 assemblies 8 are two groups which are vertically arranged in a staggered mode.
The elastic guide mechanism further comprises a conical spring 9, the small-diameter end of the conical spring 9 is fixedly sleeved on the circumferential outer wall of the filter cylinder 3, and the large-diameter end of the conical spring 9 is tangent to the circumferential inner wall of the buffer tank 1.
The utility model is provided with the heat exchange shell 2, the heat exchange shell 2 is hermetically sleeved outside the buffer tank 1, a circulating cooling liquid is communicated in a heat exchange interlayer formed between the inner circumferential wall of the heat exchange shell 2 and the outer circumferential wall of the buffer tank 1, and the cooling liquid takes away the heat of the buffer tank 1, so that the temperature of the buffer tank 1 is not too high, and the use safety is ensured; meanwhile, a diversion spring 4 is arranged in the heat exchange interlayer, the cooling liquid can flow spirally on the outer wall of the buffer tank 1 along the diversion spring 4, the outer wall of the buffer tank 1 is ensured to be cooled uniformly, the temperature difference can not occur in the buffer tank 1, and the safety is further guaranteed.
The utility model discloses in still be provided with cartridge filter 3, the hydrogen that lets in buffer tank 1 lets in cartridge filter 3 earlier, and in hydrogen passed cartridge filter 3 and got into buffer tank 1, the solid particle was intercepted can not get into the user equipment in cartridge filter 3, prevents to damage the user equipment.
The utility model discloses a be provided with elastic connection section 5 between cartridge filter 3 and buffer tank 1's the air inlet, be provided with air inlet buffer tube 6 between elastic connection section 5 and the cartridge filter 3, when the hydrogen compressor inputs hydrogen into buffer tank 1, advance into air inlet buffer tube 6, be provided with buffer board 7 in the air inlet buffer tube 6, hydrogen strikes buffer board 7 that the slope set up, avoid hydrogen direct impact cartridge filter 3 and buffer tank 1, play the effect of preliminary buffering, elastic connection section 5 makes air inlet buffer tube 6 and buffer tank 1's air inlet elastic sealing connection simultaneously, the impact force of hydrogen to air inlet buffer tube 6 has been slowed down, the utility model discloses a buffer performance has further been promoted.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the principles of the present invention.
Claims (10)
1. A hydrogen gas storage buffering filter tank comprises a buffer tank (1), wherein the buffer tank (1) is in a circular tube shape, an air inlet and an air outlet are respectively arranged at two ends of the buffer tank (1), the hydrogen gas storage buffering filter tank is characterized by further comprising a heat exchange shell (2) and a filter cylinder (3), the heat exchange shell (2) is hermetically sleeved outside the buffer tank (1), a heat exchange interlayer is formed between the circumferential inner wall of the heat exchange shell (2) and the circumferential outer wall of the buffer tank (1), inlet and outlet are respectively arranged at two ends of the heat exchange shell (2), the inlet and outlet are respectively communicated with a cooling water pipe network and a recovery water pipe network, a diversion spring (4) is arranged in the heat exchange interlayer, the diversion spring (4) is sleeved on the outer wall of the buffer tank (1), two ends of the diversion spring (4) are respectively arranged corresponding to the inlet and outlet at two ends of the heat exchange shell (2), and the ratio of the diameter value of the material of, the ratio of the pitch value of the diversion spring (4) to the diameter value of the material of the diversion spring (4) is 0.95-1.05;
the filter cartridge (3) is positioned in the buffer tank (1), one end of the filter cartridge (3) is closed, the other end of the filter cartridge is communicated with an air inlet of the buffer tank (1), the filter cartridge (3) comprises an inner filter cartridge (301) and an outer filter cartridge (302), and a filter element layer (303) is arranged between the inner filter cartridge (301) and the outer filter cartridge (302).
2. The hydrogen storage buffering filter tank of claim 1, wherein the heat exchange shell (2) comprises end caps (201), an outer protection layer (202) and an inner protection layer (203), the two end caps (201) are sleeved on two ends of the circumferential outer wall of the buffer tank (1) in a sealing and threaded manner, the outer protection layer (202) and the inner protection layer (203) are both in a circular tube shape, the outer protection layer (202) is sleeved outside the inner protection layer (203), two ends of the outer protection layer (202) and the inner protection layer (203) are respectively fixedly connected with the two end covers (201) in a sealing way, a heat insulation interlayer is formed between the outer protection layer (202) and the inner protection layer (203), the heat-insulating interlayer is filled with a heat-insulating material (204), the side wall of the end cover (201) is provided with an inlet and an outlet, the inlet and the outlet are communicated to a heat exchange interlayer between the circumferential outer wall of the buffer tank (1) and the inner wall of the inner protective layer (203).
3. The hydrogen storage buffering filter tank of claim 1, wherein an elastic connection section (5) is arranged between the filter cartridge (3) and the air inlet of the buffer tank (1), the elastic connection section (5) comprises a connecting piece (501), a fixed spring (502) and a flexible conduit (503), two ends of the fixed spring (502) are respectively and fixedly provided with one connecting piece (501), the two connecting pieces (501) are respectively and hermetically communicated with the air inlets of the filter cartridge (3) and the buffer tank (1), and the flexible conduit (503) is located outside the fixed spring (502) and two ends of the flexible conduit are respectively and hermetically connected with the two connecting pieces (501).
4. The hydrogen gas storage and buffer filter tank as claimed in claim 3, wherein an air inlet buffer tube (6) is arranged between the elastic connecting section (5) and the filter cartridge (3), both ends of the air inlet buffer tube (6) are respectively communicated with the elastic connecting section (5) and the filter cartridge (3), a plurality of buffer plates (7) are arranged in the air inlet buffer tube (6) at intervals in an axial array manner, one side of each buffer plate (7) is provided with a notch, and the notches of two adjacent buffer plates (7) are arranged in a staggered manner.
5. The hydrogen gas storage buffering filter tank of claim 4, wherein the buffer plate (7) is inclined, and the end of the buffer plate (7) provided with the notch is inclined towards the end of the air inlet buffer tube (6) close to the filter cartridge (3).
6. The hydrogen gas storage and buffer filter tank as claimed in claim 5, wherein the angle formed by the buffer plate (7) and the central axis of the air inlet buffer tube (6) is α, and the α is 40-60 °.
7. The hydrogen gas storage and buffer filter tank according to any one of claims 3 to 6, wherein the filter cartridge (3) is provided with an elastic guide mechanism, the elastic guide mechanism comprises a telescopic roller (803) assembly (8), the telescopic roller (803) assembly (8) is arranged at one end of the filter cartridge (3) far away from the air inlet of the buffer tank (1), the telescopic roller (803) assembly (8) comprises a guide sleeve (801), two slide bars (802) and rollers (803), the two slide bars (802) are respectively arranged at two ends of the guide sleeve (801), a telescopic spring is arranged between the two slide bars (802), one end of each slide bar (802) extends into the guide sleeve (801) and is axially and slidably connected with the guide sleeve (801), and the rollers (803) are rotatably arranged at the other end.
8. The hydrogen gas storage buffering filtration tank of claim 7, wherein the telescopic roller (803) assemblies (8) are two groups which are vertically arranged in a staggered manner.
9. The hydrogen gas storage buffer filter tank according to claim 7, wherein the elastic guide mechanism further comprises a conical spring (9), the small-diameter end of the conical spring (9) is fixedly sleeved on the circumferential outer wall of the filter cartridge (3), and the large-diameter end of the conical spring (9) is tangent to the circumferential inner wall of the buffer tank (1).
10. The hydrogen gas storage buffering filter tank of claim 1, wherein the buffer tank (1) comprises a tank body (101) and two sealing caps (102), the tank body (101) is in a shape of a circular tube made of an aluminum alloy material, the two sealing caps (102) are respectively located at two ends of the tank body (101) and are in threaded sealing connection with the tank body (101), a sealing ring (103) is arranged between an inner end surface of the sealing cap (102) and an end surface of the tank body (101), a side leakage hole corresponding to the sealing ring (103) is arranged on the sealing cap (102), one end of the side leakage hole is communicated to an outer end surface of the sealing cap (102), and the other end of the side leakage hole is communicated to an inner end surface of the sealing cap (102).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020605477.3U CN212080856U (en) | 2020-04-21 | 2020-04-21 | Hydrogen gas storage buffering filter tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020605477.3U CN212080856U (en) | 2020-04-21 | 2020-04-21 | Hydrogen gas storage buffering filter tank |
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| CN212080856U true CN212080856U (en) | 2020-12-04 |
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| CN202020605477.3U Active CN212080856U (en) | 2020-04-21 | 2020-04-21 | Hydrogen gas storage buffering filter tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442182A (en) * | 2020-04-21 | 2020-07-24 | 新乡市玖鼎机械有限公司 | Hydrogen gas storage buffering filter tank |
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2020
- 2020-04-21 CN CN202020605477.3U patent/CN212080856U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442182A (en) * | 2020-04-21 | 2020-07-24 | 新乡市玖鼎机械有限公司 | Hydrogen gas storage buffering filter tank |
| CN111442182B (en) * | 2020-04-21 | 2024-05-24 | 新乡市玖鼎机械有限公司 | Hydrogen gas storage buffering filter tank |
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