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Lab Mobile Electric Turbine Liquid Nitrogen Pump
Product overview
1, liquid nitrogen pumping speed 0 ~ 5L/min, stepless adjustable,
2. Electro-mechanical turbine structure, one key out of liquid nitrogen, head > 3 meters;
3. Standard 30L liquid nitrogen container (diameter 50mm);
4, with large capacity lithium battery, battery power can be seen, a single charge can be pumped more than 200L of liquid nitrogen;
Main parameter
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1, liquid nitrogen pumping speed 0 ~ 5L/min, stepless adjustable, 2. Electro-mechanical turbine structure, one key out of liquid nitrogen, head > 3 meters; 3. Standard 30L liquid nitrogen container (diameter 50mm); 4, with large capacity lithium battery, battery power can be seen, a single charge can be pumped more than 200L of liquid nitrogen; 5, no power socket, no power cord to liquid nitrogen pump position limit, with silent universal base, can move freely; 6. Compared with pneumatic liquid nitrogen pump, mechanical turbine structure has three core advantages: (1) It will not pollute liquid nitrogen due to air injection; (2) No need to seal, no overpressure danger; (3)Liquid nitrogen is produced faster with one key. |
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Patent Name: A non-pneumatic electric turbine liquid nitrogen pump Patent number: ZL 2017208648736 Point of protection: 1, electric button start and stop, pumping speed is stepless adjustable; 2, non-pneumatic turbine structure, tank without sealing; 3, with battery power supply, no need to connect to a fixed power socket; 4. Safety structure to prevent frosting and freezing of pump head;
5, equipped with a roller base, the whole device can be moved arbitrarily; |
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Technical background
For open liquid nitrogen containers commonly used in existing laboratories, the liquid nitrogen is transferred to the target container in the following ways:
A. Method 1, the way of dumping; The disadvantages of this method are: ① it is laborious, especially for the liquid nitrogen tank with more than 30L volume, a person usually cannot complete the liquid nitrogen dumping; (2) Unsafe, dumping liquid nitrogen flow is not easy to control, easy to cause liquid nitrogen splash, overflow, low temperature liquid nitrogen splash and spill, easy to bring personal safety risks.
B. Method two, pneumatic liquid nitrogen pump; The shortcomings of the liquid nitrogen pump are: (1) the liquid nitrogen is slow, the use of human air pump or electric air pump to the liquid nitrogen container into the air, only when the air pressure reaches a certain degree of liquid nitrogen will be pressed out, delay sense is obvious, low efficiency; ② Liquid nitrogen is polluted. Oxygen, carbon dioxide, water vapor and so on in the air into the liquid nitrogen container will cause pollution to liquid nitrogen. The temperature of liquid nitrogen polluted by air (mainly dissolved oxygen) will increase, resulting in limited application requirements for temperature stability of liquid nitrogen;
The utility model adopts the low-temperature resistant turbine, the centrifugal principle of liquid nitrogen pump, brushless DC motor as a power source, the use of large capacity lithium battery power supply, the pump speed stepless adjustable, overcome the existing liquid nitrogen pump defects, does not pollute liquid nitrogen, fast out of liquid nitrogen, is a convenient liquid nitrogen transfer device.
Comparison of functions of pneumatic and turbine liquid nitrogen pumps
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Air pressure type |
Turbine type |
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The principle of |
Seal the liquid nitrogen container port, inject air into the liquid nitrogen container to increase the internal pressure of the liquid nitrogen container, thereby pressing the liquid nitrogen out of the liquid nitrogen container; |
Through mechanical turbine, it is usually a mechanical centrifugal pump structure, and liquid nitrogen pump out of the container; |
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Main product types |
Method 1: Sucking ear balls, injecting air into liquid nitrogen containers;
Method 2: Put on the feet puzzle, and enter the air into the liquid nitrogen container;
Method 3: Electric air pump, enter the air into the liquid nitrogen container;
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BSD-LN type electric turbine nitrogen pump Turbine structure:
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The core distinction |
Need to inject gases, air pressure type |
No need to inject gas, turbine centrifugal type |
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Nature of contamination |
After injection of the air, the oxygen, carbon dioxide, and water in the air will liquefy and solidify in liquid nitrogen, which will cause liquid nitrogen pollution; Pure liquid nitrogen is colorless and transparent; the liquid nitrogen hair after dissolved oxygen is light blue, the liquid nitrogen after the water vapor has ice residue, and the polluted liquid nitrogen boiling point increases and is unstable; |
Liquid nitrogen will not be polluted by air, keep it pure; |
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Start stop speed |
The nitrogen out of the liquid is slow. After starting to cheer up, it takes a period of time to produce liquid nitrogen; There is a phenomenon after stopping cheering; |
Exit -liquid nitrogen is fast, start immediately with liquid nitrogen; Stop fast, after the switch is turned off, liquid nitrogen stops immediately |
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Control of motor speed |
Poor speed, the overall output liquid nitrogen speed is slow; |
There can be no speed adjustment, high pump speed; |
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Security |
The mouth of the liquid nitrogen container needs to be sealed, and there is pressure inside, and the safety of pressure is required; |
No need to be sealed, there is no pressure inside the liquid nitrogen container, and it is safer; |
IPv6 network supported 