CN211551147U - Liquid nitrogen filling machine capable of rapidly blowing and deicing online - Google Patents
Liquid nitrogen filling machine capable of rapidly blowing and deicing online Download PDFInfo
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- CN211551147U CN211551147U CN202020100893.8U CN202020100893U CN211551147U CN 211551147 U CN211551147 U CN 211551147U CN 202020100893 U CN202020100893 U CN 202020100893U CN 211551147 U CN211551147 U CN 211551147U
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Abstract
The utility model discloses a liquid nitrogen filling machine capable of quickly blowing and deicing on line, which comprises a nitrogen control loop component, a nitrogen injection device connected with the nitrogen control loop component, a nitrogen distributor and a nitrogen injection machine control system, wherein the nitrogen control loop component is provided with a nitrogen injection high-speed cylinder air supply pipe, a nitrogen injection head quick blowing pipe and a nitrogen injection head nitrogen protection pipe which are respectively communicated with a first air inlet hole, a second air inlet hole and a third air inlet hole, the nitrogen injection head quick blowing pipe is connected with the nitrogen protection pipe, high-pressure nitrogen is adopted to blow ice in a nitrogen delivery pipeline, the nitrogen injection high-speed cylinder air supply pipe provides nitrogen for controlling the rhythm of nitrogen filling, the nitrogen protection pipe of the nitrogen injection head provides nitrogen required for protecting a liquid nitrogen nozzle, the function is comprehensive, particularly, the high, the novel deicing device makes full use of the existing materials without other means such as electric heating and the like, reduces the cost, improves the efficiency and achieves the effect of quick deicing.
Description
Technical Field
The utility model belongs to the technical field of food soft-packing auxiliary device technique and specifically relates to a liquid nitrogen filling machine of deicing can swiftly sweep on line.
Background
In food and beverage industries, the vacuum degree requirement of the packaged materials is generally realized by connecting a vacuum chamber of a can sealing machine with a vacuum pump or by adopting two modes of steam injection. However, both methods have the disadvantage that the production speed by vacuum pumping is relatively low, which is disadvantageous for mass production, and the vacuum degree by steam injection is limited because hot filling is required. Advocate at present and reduce the cost vigorously, energy-conservation, under the convenient theory of opening is required again, the tinplate can is gradually replaced by easy open can aluminium can, plastic tank, because the material problem, the jar of these two kinds of materials not only does not allow the evacuation, still need pressurize in the inside, just can make the can body indeformable, so people utility model discloses a method that the liquid nitrogen pours into is utility model promptly the liquid nitrogen injection machine, adopt the liquid nitrogen injection machine to pour into the jar gasification back with the liquid nitrogen into, both can form the vacuum in the jar, also can increase jar interior pressure, make the jar body keep the rounded outward appearance in the time of prolonging shelf life.
Because the temperature of liquid nitrogen is very low, so lie in the easy icing of part around the liquid nitrogen, lead to liquid nitrogen delivery pipe or shower nozzle to be blockked up by the ice easily, people generally adopt the mode deicing of shutting down the machine and heating, and the process is loaded down with trivial details, influences the production rhythm.
Those skilled in the art are therefore working to develop a liquid nitrogen filling machine that can rapidly de-ice.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the technical problem to be solved in the utility model is to provide a liquid nitrogen filling machine that can remove ice fast.
In order to achieve the above object, the utility model provides a liquid nitrogen filling machine capable of rapidly purging and deicing on line, which comprises a nitrogen control loop component, and a nitrogen injection device, a nitrogen distributor and a nitrogen injection machine control system connected with the nitrogen control loop component, wherein the nitrogen injection device comprises a liquid nitrogen tank and a liquid nitrogen spray head connected with the liquid nitrogen tank, the liquid nitrogen spray head is installed at the bottom of an air supply pipe, a valve hole communicated with the liquid nitrogen spray head is arranged below the air supply pipe, an air cylinder and a pneumatic solenoid valve are installed at the top of the air supply pipe, a piston rod of the air cylinder is axially inserted into and can block the valve hole, a first air inlet hole is arranged through the side wall of the air supply pipe, the pneumatic solenoid valve is provided with a second air inlet hole, an air outlet hole of the pneumatic solenoid valve is connected with an air inlet of the air cylinder, and a protective seat is installed, the protection seat is provided with a third air inlet hole which penetrates through the protection seat.
The nitrogen control loop assembly comprises a nitrogen inlet pipe, one end of the nitrogen inlet pipe is connected with an inlet of a first three-way pipe, the other end of the nitrogen inlet pipe is connected with the nitrogen distributor, the first three-way pipe is provided with a first outlet and a second outlet, the first outlet is connected with a nitrogen purging electromagnetic valve, the nitrogen purging electromagnetic valve is provided with a third outlet and a fourth outlet, the third outlet is connected with the nitrogen injector control system, the fourth outlet is connected with a second three-way pipe, the second three-way pipe is provided with a fifth outlet and a sixth outlet, the fifth outlet is connected with a bottom pressure pipe of the filling machine, and the bottom pressure pipe of the filling machine is connected with the bottom of the liquid nitrogen tank; the sixth outlet is connected with a one-way valve, the outlet of the one-way valve is connected with a nitrogen injection head rapid purging pipe, and the nitrogen injection head rapid purging pipe is connected with the first air inlet hole.
The second outlet is connected with a third three-way pipe, the third three-way pipe is provided with a seventh outlet and an eighth outlet, the seventh outlet is connected with a nitrogen adjusting needle valve, the nitrogen adjusting needle valve is connected with a nitrogen injection head nitrogen protection pipe, and the nitrogen injection head nitrogen protection pipe is connected with the third air inlet.
The eighth outlet is connected with a nitrogen pressure regulating valve, the outlet of the nitrogen pressure regulating valve is connected with a nitrogen injection high-speed cylinder air supply pipe, and the nitrogen injection high-speed cylinder air supply pipe is connected with the second air inlet.
The nitrogen injection machine control system is connected with one end of a pressure pipe at the top of the nitrogen injection machine, and the other end of the pressure pipe at the top of the nitrogen injection machine is connected with the top of the liquid nitrogen tank.
The nitrogen distributor is connected with the liquid nitrogen tank through a whole machine purging nitrogen pipeline.
And a filter is arranged between the first outlet and the nitrogen purging electromagnetic valve for connection.
And a first pressure gauge connection is also arranged between the second outlet and the third three-way pipe.
And a second pressure gauge is also arranged between the nitrogen pressure regulating valve and the nitrogen injection high-speed cylinder gas supply pipe.
The third outlet is connected with the nitrogen injection machine control system through a transfer pipe.
The nitrogen distributor is also connected with a pressure regulating valve communicated with the outside.
The nitrogen control loop assembly further comprises a fixing plate, and the top pressure guiding pipe of the filling machine is bent into a shape like a Chinese character 'men' and fixedly installed on the fixing plate.
The nitrogen gas injection device is provided with a liquid inlet pipe communicated with the liquid nitrogen tank, the whole nitrogen purging pipeline is provided with a first manual ball valve communicated with the outside, and the whole nitrogen purging pipeline is further provided with a second manual ball valve connected with the liquid inlet pipe.
The liquid nitrogen tank is connected with the liquid nitrogen spray head through a liquid outlet filling pipe, an outlet of the liquid outlet filling pipe is arranged on the air supply pipe, and a manual valve is further arranged on the liquid outlet filling pipe.
The utility model has the advantages that: the utility model discloses a liquid nitrogen filling machine, including nitrogen gas control circuit subassembly and the nitrogen gas injection device who is connected with nitrogen gas control circuit subassembly, nitrogen gas distributor and notes nitrogen gas control system, nitrogen gas control circuit subassembly be provided with respectively with first inlet port, the notes nitrogen high speed cylinder air supply pipe of second inlet port and third inlet port intercommunication, annotate the nitrogen head and swiftly sweep the pipe and annotate nitrogen head nitrogen protection pipe and connect, adopt high-pressure nitrogen gas to sweep the ice that is located defeated nitrogen pipe, it provides the rhythm that nitrogen gas is used for controlling nitrogen gas and fills to annotate nitrogen gas high speed cylinder air supply pipe, annotate nitrogen head nitrogen protection pipe and provide for the required nitrogen gas of protection liquid nitrogen shower nozzle, the function is comprehensive, especially utilize high-pressure nitrogen gas deicing, it make full use of current material and means such as other electric heating, and therefore, the cost is reduced, the efficiency.
Drawings
Fig. 1 is a partial structural schematic diagram of the present invention;
FIG. 2 is a schematic view of the structure of the present invention;
FIG. 3 is a schematic of the structure of the nitrogen control loop assembly;
fig. 4 is a top view of the structure of the present invention;
FIG. 5 is a cross-sectional view of the three-dimensional structure of FIG. 4 taken at A-A;
fig. 6 is an enlarged view of the structure at B in fig. 5.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 6, a liquid nitrogen filling machine capable of rapidly purging and deicing online comprises a nitrogen control loop assembly 4, a nitrogen injection device 1 connected with the nitrogen control loop assembly 4, a nitrogen distributor 2 and a nitrogen injection machine control system 3, wherein the nitrogen injection device 1 comprises a liquid nitrogen tank 5 and a liquid nitrogen spray head 6 connected with the liquid nitrogen tank 5, the liquid nitrogen spray head 6 is installed at the bottom of a gas supply pipe 36, a valve hole 37 communicated with the liquid nitrogen spray head 6 is arranged below the gas supply pipe 36, a cylinder 38 and a pneumatic solenoid valve 39 are installed at the top of the gas supply pipe 36, a piston rod 49 of the cylinder 38 is axially inserted into and can block the valve hole 37, a first gas inlet hole 40 is arranged on the side wall of the gas supply pipe 36 in a penetrating manner, the pneumatic solenoid valve 39 is provided with a second gas inlet hole 41, a gas outlet hole of the pneumatic solenoid valve 39 is connected with a gas inlet of the cylinder 38, a, the protective seat 42 is provided with a third air intake hole 43 therethrough.
The nitrogen control loop assembly comprises a nitrogen inlet pipe 7, one end of the nitrogen inlet pipe 7 is connected with an inlet of a first three-way pipe 8, the other end of the nitrogen inlet pipe 7 is connected with the nitrogen distributor 2, the first three-way pipe 8 is provided with a first outlet 9 and a second outlet 10, the first outlet 10 is connected with a nitrogen purging electromagnetic valve 11, the nitrogen purging electromagnetic valve 11 is provided with a third outlet 12 and a fourth outlet 13, the third outlet 12 is connected with the nitrogen filling machine control system 3, the fourth outlet 13 is connected with a second three-way pipe 14, the second three-way pipe 14 is provided with a fifth outlet 15 and a sixth outlet 16, the fifth outlet 15 is connected with a filling machine bottom pressure guiding pipe 17, and the filling machine bottom pressure guiding pipe 17 is connected with the bottom of the liquid nitrogen tank 5; the sixth outlet 16 is connected with a one-way valve 18, the outlet of the one-way valve 18 is connected with a nitrogen injection head quick purging pipe 19, and the nitrogen injection head quick purging pipe 19 is connected with the first air inlet hole 40.
The second outlet 10 is connected with a third three-way pipe 20, the third three-way pipe 20 is provided with a seventh outlet 21 and an eighth outlet 22, the seventh outlet 21 is connected with a nitrogen adjusting needle valve 23, the nitrogen adjusting needle valve 23 is connected with a nitrogen injection head nitrogen protection pipe 24, and the nitrogen injection head nitrogen protection pipe 24 is connected with a third air inlet 43.
The eighth outlet 22 is connected with a nitrogen pressure regulating valve 25, the outlet of the nitrogen pressure regulating valve 25 is connected with a nitrogen injection high-speed cylinder air supply pipe 26, and the nitrogen injection high-speed cylinder air supply pipe 26 is connected with a second air inlet 41.
The control system 3 of the nitrogen injection machine is connected with one end of a top pressure pipe 28 of the nitrogen injection machine, and the other end of the top pressure pipe 28 of the nitrogen injection machine is connected with the top of the liquid nitrogen tank 5;
the nitrogen distributor 2 is connected with the liquid nitrogen tank 5 through a whole machine purging nitrogen pipeline 32.
A filter 29 is arranged between the first outlet 9 and the nitrogen purging electromagnetic valve 11 for connecting, and the filter filters nitrogen and plays a certain role in protecting the system.
A first pressure gauge 30 is arranged between the second outlet 10 and the third three-way pipe 20 for connection, a second pressure gauge 31 is arranged between the nitrogen pressure regulating valve 25 and the nitrogen injection high-speed cylinder gas supply pipe 26, and the first pressure gauge 30 and the second pressure gauge 31 monitor the pressure of the whole system.
The third outlet 12 is connected to the nitrogen injector control system 3 via a transfer pipe 33.
The nitrogen distributor 2 is also connected with a pressure regulating valve 34 communicated with the outside, and the pressure regulating valve 34 regulates the pressure of the whole system.
The nitrogen control loop assembly 4 further comprises a fixing plate 35, and the pressure guiding pipe 28 at the top of the filling machine is bent into a shape like a Chinese character 'men' and fixedly installed on the fixing plate 35.
The nitrogen gas injection device 1 is provided with a liquid inlet pipe 44 communicated with the liquid nitrogen tank 5, the whole nitrogen purging pipeline 32 is provided with a first manual ball valve 45 communicated with the outside, the whole nitrogen purging pipeline 32 is further provided with a second manual ball valve 46 connected with the liquid inlet pipe 44, and the first manual ball valve 45 discharges redundant nitrogen gas outwards under special conditions.
The liquid nitrogen tank 5 and the liquid nitrogen spray head 6 are connected through a liquid outlet filling pipe 47, the outlet of the liquid outlet filling pipe 47 is arranged on the air feed pipe 36, and a manual valve 48 is further arranged on the liquid outlet filling pipe 47 and plays a role in manually controlling the flow of liquid nitrogen.
The utility model discloses a theory of operation does:
when the machine is started, the nitrogen purging electromagnetic valve 11 is opened according to a program, the second manual ball valve 46 is opened, so that high-pressure nitrogen generated from the liquid nitrogen tank 5 is blown into the air supply pipe 36 along the whole machine purging nitrogen pipeline 32, the nitrogen distributor 2, the nitrogen inlet pipe 7, the first three-way pipe 8, the first outlet 9, the filter 29, the nitrogen purging electromagnetic valve 11, the fourth outlet 13, the second three-way pipe 14, the sixth outlet 16, the one-way valve 18, the nitrogen injection head quick purging pipe 19 and the first air inlet 40 in sequence, ice in the air supply pipe 36 and ice on the liquid nitrogen nozzle 6 are purged, after the ice is removed, the nitrogen purging electromagnetic valve 11 is closed, and the process is ended.
Then entering a state of continuously filling liquid nitrogen, continuously opening the nitrogen pressure regulating valve 25 and the nitrogen regulating needle valve 23 according to a program, intermittently opening the pneumatic electromagnetic valve 39, providing continuous nitrogen protection for the liquid nitrogen spray head 6 under the control of the nitrogen regulating needle valve 23, controlling the filling of the liquid nitrogen by the nitrogen pressure regulating valve 25 and the pneumatic electromagnetic valve 39, and circulating the nitrogen in two ways at the moment:
one way is to open the nitrogen adjusting needle valve 23 and open the second manual ball valve 46, so that the high-pressure nitrogen generated from the liquid nitrogen tank 5 sweeps the nitrogen pipeline 32, the nitrogen distributor 2, the nitrogen inlet pipe 7, the first three-way pipe 8, the second outlet 10, the third three-way pipe 20, the seventh outlet 21, the nitrogen adjusting needle valve 23, the nitrogen injection head nitrogen protection pipe 24 and the third air inlet hole 43 in sequence along the whole machine, and finally the space around the liquid nitrogen spray head 6 is filled with the nitrogen, so that the protection is provided for the liquid nitrogen injection process.
The other path is to open the nitrogen adjusting needle valve 23, open the second manual ball valve 46, so that the high-pressure nitrogen generated from the liquid nitrogen tank 5 sequentially sweeps the nitrogen pipeline 32, the nitrogen distributor 2, the nitrogen inlet pipe 7, the first three-way pipe 8, the second outlet 10, the third three-way pipe 20, the eighth outlet 22, the nitrogen pressure adjusting valve 25, the nitrogen injection high-speed cylinder air supply pipe 26 and the second air inlet 41 along the whole machine, finally enters the pneumatic solenoid valve 39, then according to the actual filling requirement, for example, after the liquid nitrogen in one bottle is filled, the nitrogen is input into the cylinder 38, the piston rod 49 is pushed to move downwards to block the valve hole 37, so that the liquid nitrogen in the liquid nitrogen tank 5 and the liquid outlet filling pipe 47 stops flowing, then when the next empty bottle is filled, the pneumatic solenoid valve 39 is closed, because the piston rod 49 is sleeved with a compression spring, the piston rod 49 moves upwards to separate from the valve hole 37 under the elastic force of, thereby realizing liquid nitrogen filling (the compression spring is a common technology in the mechanical field, and is not described herein again).
The utility model discloses in, annotate nitrogen machine control system 3, first manometer 30 and the pressure of second manometer 31 control and control entire system, the manometer on annotating nitrogen machine control system 3 is connected to filling machine bottom pressure drawing pipe 17 and filling machine top pressure drawing pipe 28, monitors the pressure in liquid nitrogen container 5.
In addition, an electric heating sleeve 50 is further installed on the periphery of the liquid nitrogen spray head 6, and an electric heating block 51 is arranged on one side of the electric heating sleeve 50 and used for heating the liquid nitrogen spray head 6, so that liquid nitrogen is changed into gas, and filling is convenient.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (9)
1. The utility model provides a can swiftly sweep liquid nitrogen filling machine of deicing on line which characterized by: including nitrogen gas control circuit subassembly (4) and with nitrogen gas injection device (1), nitrogen gas distributor (2) and notes nitrogen machine control system (3) that nitrogen gas control circuit subassembly (4) are connected, nitrogen gas injection device (1) include liquid nitrogen container (5) with liquid nitrogen shower nozzle (6) that liquid nitrogen container (5) are connected, the bottom at a blast pipe (36) is installed in liquid nitrogen shower nozzle (6), the below of blast pipe (36) be provided with valve opening (37) of liquid nitrogen shower nozzle (6) intercommunication, cylinder (38) and pneumatic solenoid valve (39) are installed at the top of blast pipe (36), piston rod (49) axial insertion and the shutoff of cylinder (38) valve opening (37), the lateral wall of blast pipe (36) runs through and is provided with first inlet port (40), pneumatic solenoid valve (39) are provided with second inlet port (41), an air outlet of the pneumatic electromagnetic valve (39) is connected with an air inlet of the air cylinder (38), a protective seat (42) is installed at the bottom of the air feed pipe (36) around the liquid nitrogen spray head (6), and the protective seat (42) is provided with a third air inlet (43) which penetrates through the protective seat;
the nitrogen control loop component comprises a nitrogen inlet pipe (7), one end of the nitrogen inlet pipe (7) is connected with an inlet of a first three-way pipe (8), the other end of the nitrogen inlet pipe is connected with the nitrogen distributor (2), the first three-way pipe (8) is provided with a first outlet (9) and a second outlet (10), the first outlet (9) is connected with a nitrogen purging electromagnetic valve (11), the nitrogen purging electromagnetic valve (11) is provided with a third outlet (12) and a fourth outlet (13), the third outlet (12) is connected with the nitrogen injection machine control system (3), the fourth outlet (13) is connected with a second three-way pipe (14), the second three-way pipe (14) is provided with a fifth outlet (15) and a sixth outlet (16), the fifth outlet (15) is connected with a bottom pressure pipe (17) of the filling machine, and the bottom pressure pipe (17) of the filling machine is connected with the bottom of the liquid nitrogen tank (5); the sixth outlet (16) is connected with a one-way valve (18), the outlet of the one-way valve (18) is connected with a nitrogen injection head quick purging pipe (19), and the nitrogen injection head quick purging pipe (19) is connected with the first air inlet (40);
the second outlet (10) is connected with a third three-way pipe (20), the third three-way pipe (20) is provided with a seventh outlet (21) and an eighth outlet (22), the seventh outlet (21) is connected with a nitrogen adjusting needle valve (23), the nitrogen adjusting needle valve (23) is connected with a nitrogen injection head nitrogen protection pipe (24), and the nitrogen injection head nitrogen protection pipe (24) is connected with the third air inlet (43);
the eighth outlet (22) is connected with a nitrogen pressure regulating valve (25), the outlet of the nitrogen pressure regulating valve (25) is connected with a nitrogen injection high-speed cylinder air supply pipe (26), and the nitrogen injection high-speed cylinder air supply pipe (26) is connected with the second air inlet (41);
the nitrogen injection machine control system (3) is connected with one end of a top pressure pipe (28) of the nitrogen injection machine, and the other end of the top pressure pipe (28) of the nitrogen injection machine is connected with the top of the liquid nitrogen tank (5);
the nitrogen distributor (2) is connected with the liquid nitrogen tank (5) through a whole machine purging nitrogen pipeline (32).
2. A liquid nitrogen filling machine as claimed in claim 1, wherein: and a filter (29) is arranged between the first outlet (9) and the nitrogen purging electromagnetic valve (11) for connection.
3. A liquid nitrogen filling machine as claimed in claim 1, wherein: and a first pressure gauge (30) is arranged between the second outlet (10) and the third three-way pipe (20) for connection.
4. A liquid nitrogen filling machine as claimed in claim 1, wherein: and a second pressure gauge (31) is also arranged between the nitrogen pressure regulating valve (25) and the nitrogen injection high-speed cylinder air supply pipe (26)).
5. A liquid nitrogen filling machine as claimed in claim 1, wherein: the third outlet (12) is connected with the nitrogen injection machine control system (3) through a transfer pipe (33).
6. A liquid nitrogen filling machine as claimed in claim 1, wherein: the nitrogen distributor (2) is also connected with a pressure regulating valve (34) communicated with the outside.
7. A liquid nitrogen filling machine as claimed in claim 1, wherein: the nitrogen control loop assembly (4) further comprises a fixing plate (35), and the top pressure guiding pipe (28) of the filling machine is bent into a shape like a Chinese character 'men' and fixedly installed on the fixing plate (35).
8. A liquid nitrogen filling machine as claimed in claim 1, wherein: the nitrogen injection device (1) is provided with a liquid inlet pipe (44) communicated with the liquid nitrogen tank (5), the whole machine purging nitrogen pipeline (32) is provided with a first manual ball valve (45) communicated with the outside, and the whole machine purging nitrogen pipeline (32) is further provided with a second manual ball valve (46) connected with the liquid inlet pipe (44).
9. A liquid nitrogen filling machine as claimed in claim 1, wherein: the liquid nitrogen tank (5) is connected with the liquid nitrogen spray head (6) through a liquid outlet filling pipe (47), an outlet of the liquid outlet filling pipe (47) is arranged on the air feed pipe (36), and a manual valve (48) is further arranged on the liquid outlet filling pipe (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020100893.8U CN211551147U (en) | 2020-01-16 | 2020-01-16 | Liquid nitrogen filling machine capable of rapidly blowing and deicing online |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020100893.8U CN211551147U (en) | 2020-01-16 | 2020-01-16 | Liquid nitrogen filling machine capable of rapidly blowing and deicing online |
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| Publication Number | Publication Date |
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| CN211551147U true CN211551147U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020100893.8U Active CN211551147U (en) | 2020-01-16 | 2020-01-16 | Liquid nitrogen filling machine capable of rapidly blowing and deicing online |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140768A (en) * | 2020-01-16 | 2020-05-12 | 重庆贝纳吉液氮生物容器有限公司 | Liquid nitrogen filling machine capable of rapidly blowing and deicing online |
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2020
- 2020-01-16 CN CN202020100893.8U patent/CN211551147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140768A (en) * | 2020-01-16 | 2020-05-12 | 重庆贝纳吉液氮生物容器有限公司 | Liquid nitrogen filling machine capable of rapidly blowing and deicing online |
| CN111140768B (en) * | 2020-01-16 | 2024-05-24 | 重庆贝纳吉液氮生物容器有限公司 | Liquid nitrogen filling machine capable of carrying out online and rapid purging deicing |
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