CN114791086A - Integrated nitrogen frame device - Google Patents
Integrated nitrogen frame device Download PDFInfo
- Publication number
- CN114791086A CN114791086A CN202210568901.5A CN202210568901A CN114791086A CN 114791086 A CN114791086 A CN 114791086A CN 202210568901 A CN202210568901 A CN 202210568901A CN 114791086 A CN114791086 A CN 114791086A
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- CN
- China
- Prior art keywords
- nitrogen
- integrated
- gas
- pressure chamber
- integrated nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 211
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 102
- 239000007789 gas Substances 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 7
- 238000002955 isolation Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
- F17C13/084—Mounting arrangements for vessels for small-sized storage vessels, e.g. compressed gas cylinders or bottles, disposable gas vessels, vessels adapted for automotive use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0153—Details of mounting arrangements
- F17C2205/018—Supporting feet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/014—Nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0128—Propulsion of the fluid with pumps or compressors
- F17C2227/0135—Pumps
- F17C2227/0142—Pumps with specified pump type, e.g. piston or impulsive type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention relates to the technical field of nitrogen equipment, and discloses an integrated nitrogen frame device which comprises an integrated nitrogen frame framework, wherein the integrated nitrogen frame framework is provided with three layers, and a supporting plate for placing a nitrogen bottle is fixed at the bottommost layer of the integrated nitrogen frame framework; the bottle mouth of each nitrogen bottle is connected with a gas collecting pipe through a vent pipe, the gas collecting pipe is connected with one end of a gas inlet pipe, the other end of the gas inlet pipe is connected with a pressure chamber through a gas inlet valve, and the pressure chamber is connected with a gas outlet pipe through a gas outlet valve; the pressure chamber is provided with a pressurizing and air-extracting mechanism, the pressure chamber and the pressurizing and air-extracting mechanism are arranged on a baffle, and the baffle is fixed on the uppermost layer of the integrated nitrogen frame framework through a first screw. It has not only solved the problem that the nitrogen cylinder was laid, also because of can release nitrogen gas and pressure boost air exhaust mechanism in a plurality of nitrogen cylinders simultaneously and improved the upper limit that provides the pressure value greatly, can also take out the nitrogen gas in the nitrogen cylinder as far as through pressure boost air exhaust mechanism, very big improvement its utilization ratio.
Description
The technical field is as follows:
the invention relates to the technical field of nitrogen equipment, in particular to an integrated nitrogen frame device.
Background art:
with the further research on nitrogen, the nitrogen has more and more extensive applications, and can be seen in the body shadow of nitrogen in the industries of metallurgy, metal processing, chemical engineering, new materials, food, medicine, electronics and the like. The equipment for storing nitrogen is generally a nitrogen cylinder. However, the nitrogen gas is used by various enterprises at present, a single nitrogen gas bottle is directly placed on the ground, and a pipeline and a valve are connected to the opening of the nitrogen gas bottle. When the nitrogen is used, the valve is opened, and the nitrogen in the nitrogen bottle flows out along the pipeline; after the completion, the valve is closed. This also presents certain problems: firstly, the problem of storing nitrogen bottles is solved, and a single nitrogen bottle is directly placed on the ground, is easy to collide and collide, and is extremely unsafe, so that potential safety hazards are easily caused; secondly, the problem of pressure value is solved, the pressure value provided by a single nitrogen cylinder when releasing nitrogen is limited, the requirement of equipment with large pressure value cannot be well met, and the additional increase of a pressurizing device is complicated; and moreover, the utilization rate problem is solved, and when a single nitrogen bottle is used, the nitrogen in the bottle cannot be used up well.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides an integrated nitrogen frame device, which not only solves the problem of placing nitrogen bottles, but also greatly improves the upper limit of the provided pressure value because nitrogen in a plurality of nitrogen bottles and a pressurizing and air-extracting mechanism can be released simultaneously, and can also extract the nitrogen in the nitrogen bottles as much as possible through the pressurizing and air-extracting mechanism, thereby greatly improving the utilization rate of the nitrogen bottles.
The scheme for solving the technical problems is as follows:
an integrated nitrogen frame device comprises an integrated nitrogen frame framework, wherein the integrated nitrogen frame framework is provided with three layers, and a supporting plate for placing a nitrogen cylinder is fixed at the bottommost layer of the integrated nitrogen frame framework; the bottle mouth of each nitrogen bottle is connected with a gas collecting pipe through a vent pipe, the gas collecting pipe is connected with one end of a gas inlet pipe, the other end of the gas inlet pipe is connected with a pressure chamber through a gas inlet valve, and the pressure chamber is connected with a gas outlet pipe through a gas outlet valve;
the pressure chamber is provided with a pressurizing and air-extracting mechanism, the pressure chamber and the pressurizing and air-extracting mechanism are arranged on a baffle, and the baffle is fixed on the uppermost layer of the integrated nitrogen frame framework through a first screw.
The middle layer of the integrated nitrogen frame framework is fixed with a plurality of parallel isolation plates through second screws, and each isolation plate isolates two corresponding adjacent rows of nitrogen cylinders.
Two rows of limiting grooves are formed in the isolating plate, and the outline of each limiting groove is matched with the outer wall of the nitrogen cylinder at the corresponding height.
The distance between two adjacent limiting grooves on the same row of limiting grooves is equal to the maximum outer diameter of the nitrogen cylinder, so that the nitrogen cylinder can be prevented from shaking in the frame.
And the gas collecting pipe is fixedly connected with a pressure gauge communicated with the inner cavity of the gas collecting pipe and used for measuring the pressure value in the gas collecting pipe.
And two ends of the gas collecting pipe are respectively fixed with a connecting support, and the connecting supports are fixed on the integrated nitrogen frame framework through third screws.
The air inlet valve and the air outlet valve are one-way valves, the air outlet valve only allows nitrogen to be led out from the pressure chamber, and the air inlet valve only allows nitrogen to enter the pressure chamber from the air inlet pipe.
A cylinder hole with an opening at one side is formed in the pressure chamber, and an air inlet hole and an air outlet hole which are communicated with the cylinder hole are formed at one end of the cylinder hole, which is far away from the opening side; the air inlet valve is connected with the air inlet hole, and the air outlet valve is connected with the air outlet hole;
the pressurizing and air-extracting mechanism comprises a piston inserted in a cylinder hole, the piston is fixed on a piston rod of the hydraulic cylinder, and the hydraulic cylinder is connected with the oil pump through two oil inlet and outlet pipes; the oil pump, the hydraulic cylinder and the pressure chamber are fixed on the baffle.
And a sealing ring is sleeved on the outer wall of the piston and pressed against the inner wall of the cylinder hole.
And a manual valve is arranged on the air outlet pipe.
The invention has the prominent effects that:
compared with the prior art, the nitrogen cylinder installation device not only solves the problem of nitrogen cylinder installation, but also greatly improves the upper limit of the pressure value because of the simultaneous release of nitrogen in a plurality of nitrogen cylinders and the pressurization air exhaust mechanism, can also exhaust the nitrogen in the nitrogen cylinder as far as possible through the pressurization air exhaust mechanism, and greatly improves the utilization rate.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a front view of the present invention;
FIG. 4 is a top view of the present invention;
fig. 5 is a partially enlarged view of fig. 4 about B.
The specific implementation mode is as follows:
in the embodiment, as shown in fig. 1 to 5, an integrated nitrogen frame device comprises an integrated nitrogen frame framework 1, wherein the integrated nitrogen frame framework 1 is provided with three layers, and a supporting plate 2 for placing a nitrogen cylinder 9 is fixed on the bottommost layer of the integrated nitrogen frame framework 1; the mouth of each nitrogen bottle 9 is connected with a gas collecting pipe 32 through a vent pipe 31, the gas collecting pipe 32 is connected with one end of a gas inlet pipe 33, the other end of the gas inlet pipe 33 is connected with a pressure chamber 4 through a gas inlet valve 34, and the pressure chamber 4 is connected with a gas outlet pipe 36 through a gas outlet valve 35;
the pressure chamber 4 is provided with a pressurizing and air-extracting mechanism 5, the pressure chamber 4 and the pressurizing and air-extracting mechanism 5 are arranged on a baffle plate 37, and the baffle plate 37 is fixed on the uppermost layer of the integrated nitrogen frame framework 1 through a first screw 38.
Furthermore, the middle layer of the integrated nitrogen frame skeleton 1 is fixed with a plurality of parallel partition plates 6 through second screws 62, and each partition plate 6 separates two corresponding adjacent rows of nitrogen cylinders 9.
Furthermore, two rows of limiting grooves 61 are formed on the partition plate 6, and the outline of each limiting groove 61 is matched with the outer wall of the nitrogen gas cylinder 9 at the corresponding height.
Further, the distance between two adjacent limiting grooves 61 in the same row of limiting grooves 61 is equal to the maximum outer diameter of the nitrogen gas cylinder 9.
Furthermore, a pressure gauge 38 is fixedly connected to the gas collecting pipe 32 and communicates with the inner cavity thereof.
Furthermore, a connecting bracket 39 is fixed at each end of the gas collecting pipe 32, and the connecting bracket 39 is fixed on the integrated nitrogen frame framework 1 through a third screw 30.
Further, the inlet valve 34 and the outlet valve 35 are check valves.
Furthermore, the pressure chamber 4 is formed with a cylinder hole 41 with one side opened, and one end of the cylinder hole 41 far away from the opening side is formed with an air inlet hole 42 and an air outlet hole 43 communicated therewith; the air inlet valve 34 is connected with the air inlet hole 42, and the air outlet valve 35 is connected with the air outlet hole 43;
the pressurizing air-extracting mechanism 5 comprises a piston 51 inserted in the cylinder hole 41, the piston 51 is fixed on a piston rod 521 of a hydraulic cylinder 52, and the hydraulic cylinder 52 is connected with an oil pump 54 through two oil inlet and outlet pipes 53; the oil pump 54, the hydraulic cylinder 52 and the pressure chamber 4 are fixed to the baffle plate 37.
Further, a seal ring 55 is fitted around an outer wall of the piston 51, and the seal ring 55 is pressed against an inner wall of the cylinder hole 41.
Furthermore, the outlet pipe 36 is provided with a manual valve 7.
The working principle is as follows: firstly, placing a plurality of nitrogen cylinders 9 on a supporting plate 2, then placing an isolation plate 6 between two adjacent rows of nitrogen cylinders 9 and fastening the isolation plate, wherein the isolation plate 6 can prevent the nitrogen cylinders from shaking, then connecting a vent pipe 31 with the mouth parts of the nitrogen cylinders 9, and connecting a gas collecting pipe with an integrated nitrogen framework through a connecting bracket 39 and a third screw;
when the device is used, the switch on the nitrogen cylinder 9 is opened, the gas in the nitrogen cylinder 9 enters the gas collecting pipe 32 through the vent pipe 31, the nitrogen in the gas collecting pipe 32 enters the cylinder hole 41 of the pressure chamber 4 through the gas inlet pipe 33 and the gas inlet valve 34, and then flows out through the gas outlet valve 35 and the gas outlet pipe 36;
if the pressure of the nitrogen output needs to be increased, the piston rod of the hydraulic cylinder 52 can be driven by the oil pump to extend, the piston rod of the hydraulic cylinder 52 drives the piston 51 to move, the piston 51 further compresses the nitrogen in the cylinder hole 41, and the compressed gas is discharged through the gas outlet valve 35 and the gas outlet pipe 36, so that the pressure of the nitrogen output is increased;
when the piston rod of the oil pump driving hydraulic cylinder 52 contracts, the piston 51 resets, the air pressure in the cylinder hole 41 becomes small, and the nitrogen in the nitrogen cylinder can be conveniently pumped out, so that the utilization rate of the nitrogen is improved.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (10)
1. The utility model provides an integrated nitrogen frame device, includes integrated nitrogen frame skeleton (1), its characterized in that: the integrated nitrogen frame framework (1) is provided with three layers, and a supporting plate (2) for placing a nitrogen bottle (9) is fixed at the bottommost layer of the integrated nitrogen frame framework (1); the bottle mouth of each nitrogen bottle (9) is connected with a gas collecting pipe (32) through a vent pipe (31), the gas collecting pipe (32) is connected with one end of a gas inlet pipe (33), the other end of the gas inlet pipe (33) is connected with a pressure chamber (4) through a gas inlet valve (34), and the pressure chamber (4) is connected with a gas outlet pipe (36) through a gas outlet valve (35);
the pressure chamber (4) is provided with a pressurizing and air-extracting mechanism (5), the pressure chamber (4) and the pressurizing and air-extracting mechanism (5) are arranged on a baffle plate (37), and the baffle plate (37) is fixed on the uppermost layer of the integrated nitrogen frame framework (1) through a first screw (38).
2. An integrated nitrogen rack apparatus as claimed in claim 1, wherein: the middle layer of the integrated nitrogen frame framework (1) is fixed with a plurality of parallel isolating plates (6) through second screws (62), and each isolating plate (6) isolates two corresponding adjacent rows of nitrogen cylinders (9).
3. An integrated nitrogen frame apparatus as claimed in claim 2, wherein: the baffle (6) goes up the shaping and has two rows of spacing recess (61), and the profile of every spacing recess (61) cooperatees with the outer wall of the corresponding height of nitrogen cylinder (9).
4. An integrated nitrogen rack apparatus as claimed in claim 3, wherein: the distance between two adjacent limiting grooves (61) on the same row of limiting grooves (61) is equal to the maximum outer diameter of the nitrogen cylinder (9).
5. An integrated nitrogen frame apparatus as claimed in claim 1, wherein: the gas collecting pipe (32) is fixedly connected with a pressure gauge (38) communicated with the inner cavity of the gas collecting pipe.
6. An integrated nitrogen frame apparatus as claimed in claim 1, wherein: and two ends of the gas collecting pipe (32) are respectively fixed with a connecting support (39), and the connecting supports (39) are fixed on the integrated nitrogen frame framework (1) through third screws (30).
7. An integrated nitrogen rack apparatus as claimed in claim 1, wherein: the air inlet valve (34) and the air outlet valve (35) are one-way valves.
8. An integrated nitrogen frame apparatus as claimed in claim 1, wherein: a cylinder hole (41) with an opening at one side is formed in the pressure chamber (4), and an air inlet hole (42) and an air outlet hole (43) which are communicated with the cylinder hole (41) are formed at one end, far away from the opening side, of the cylinder hole (41); the air inlet valve (34) is connected with the air inlet hole (42), and the air outlet valve (35) is connected with the air outlet hole (43);
the pressurization air extraction mechanism (5) comprises a piston (51) inserted in the cylinder hole (41), the piston (51) is fixed on a piston rod (521) of a hydraulic cylinder (52), and the hydraulic cylinder (52) is connected with an oil pump (54) through two oil inlet and outlet pipes (53); the oil pump (54), the hydraulic cylinder (52) and the pressure chamber (4) are fixed on the baffle plate (37).
9. An integrated nitrogen frame apparatus as claimed in claim 8, wherein: a sealing ring (55) is sleeved on the outer wall of the piston (51), and the sealing ring (55) is pressed against the inner wall of the cylinder hole (41).
10. An integrated nitrogen rack apparatus as claimed in claim 1, wherein: and a manual valve (7) is arranged on the air outlet pipe (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210568901.5A CN114791086A (en) | 2022-05-24 | 2022-05-24 | Integrated nitrogen frame device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210568901.5A CN114791086A (en) | 2022-05-24 | 2022-05-24 | Integrated nitrogen frame device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114791086A true CN114791086A (en) | 2022-07-26 |
Family
ID=82463419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210568901.5A Pending CN114791086A (en) | 2022-05-24 | 2022-05-24 | Integrated nitrogen frame device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114791086A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2566700A (en) * | 1998-12-24 | 2000-07-31 | Cook Incorporated | Volumetric gas mixing device |
| CN110748790A (en) * | 2019-10-28 | 2020-02-04 | 中国北方车辆研究所 | Portable high-pressure nitrogen gas charging device |
| CN112283579A (en) * | 2020-10-28 | 2021-01-29 | 安徽华塑股份有限公司 | Low-nitrogen air inlet control device for cement rotary kiln production |
| CN214369297U (en) * | 2020-12-14 | 2021-10-08 | 东营双赢特种设备检测有限公司 | Nitrogen cylinder group that security performance is high |
| CN215335748U (en) * | 2021-06-30 | 2021-12-28 | 珠海大林湾工业气体有限公司 | Multi-bottle container air supply device |
| CN114484274A (en) * | 2021-12-02 | 2022-05-13 | 洛阳双瑞特种装备有限公司 | Sea-land dual-purpose large-capacity hydrogen storage container |
-
2022
- 2022-05-24 CN CN202210568901.5A patent/CN114791086A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2566700A (en) * | 1998-12-24 | 2000-07-31 | Cook Incorporated | Volumetric gas mixing device |
| CN110748790A (en) * | 2019-10-28 | 2020-02-04 | 中国北方车辆研究所 | Portable high-pressure nitrogen gas charging device |
| CN112283579A (en) * | 2020-10-28 | 2021-01-29 | 安徽华塑股份有限公司 | Low-nitrogen air inlet control device for cement rotary kiln production |
| CN214369297U (en) * | 2020-12-14 | 2021-10-08 | 东营双赢特种设备检测有限公司 | Nitrogen cylinder group that security performance is high |
| CN215335748U (en) * | 2021-06-30 | 2021-12-28 | 珠海大林湾工业气体有限公司 | Multi-bottle container air supply device |
| CN114484274A (en) * | 2021-12-02 | 2022-05-13 | 洛阳双瑞特种装备有限公司 | Sea-land dual-purpose large-capacity hydrogen storage container |
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