CN217951942U

CN217951942U - Liquid nitrogen heat insulation tank

Info

Publication number: CN217951942U
Application number: CN202221879013.7U
Authority: CN
Inventors: 黄国喜; 吴光贵
Original assignee: Suzhou Deepcold Refrigeration Technology Co ltd
Current assignee: Suzhou Deepcold Refrigeration Technology Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-02
Anticipated expiration: 2032-07-21

Abstract

The utility model relates to a storage jar technical field, and a liquid nitrogen heat insulation tank is disclosed, which comprises a tank body, the internal inner bag that is equipped with of jar, and high vacuum between inner bag and the jar body, be provided with the feed liquor pipe and the drain pipe of vertical setting in the inner bag, the top of drain pipe extends to the outside of the jar body, the outside cover of feed liquor pipe and drain pipe is equipped with the spiral pipe, the both ends of spiral pipe are connected with refrigeration intake pipe and refrigeration outlet duct respectively, and refrigeration intake pipe and refrigeration outlet duct all extend to the outside of the jar body, the below of refrigeration intake pipe is provided with the nitrogen gas intake pipe, and the nitrogen gas intake pipe extends to the inside of inner bag, liquid level detector is installed to the vertical axis department of inner bag, the jar body is passed to liquid level detector's upper end, and install the relief valve, the admission valve, pressure gauge and temperature measurement table. The novel tank body has the function of a refrigeration evaporator, and nitrogen is changed into liquid nitrogen through heat exchange in the heat insulation pipe, so that the liquid nitrogen is prepared.

Description

Liquid nitrogen heat insulation tank

Technical Field

The utility model relates to a storage jar technical field especially relates to an adiabatic jar of liquid nitrogen.

Background

The preparation and storage of liquid nitrogen are always a difficult problem in the biopharmaceutical and experimental analytical instrument analysis industries, and the two cannot be considered simultaneously. Especially, the liquid nitrogen is used in a small amount, and the performance is particularly obvious.

The nitrogen (or other similar inert gases) is subjected to cryogenic treatment through the refrigerating pipe in the heat-insulating tank body, so that corresponding gas is liquefied and stored in the tank body, and meanwhile, the high-vacuum heat-insulating interlayer is adopted, and the liquid-phase components are ensured to be not easy to gasify and be stored.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a liquid nitrogen heat-insulating tank.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a liquid nitrogen heat insulation tank, which comprises a tank body, the internal inner bag that is equipped with of jar, and the internal high vacuum of inner bag and jar, be provided with the feed liquor pipe and the drain pipe of vertical setting in the inner bag, the top of drain pipe extends to the outside of the jar body, the outside cover of feed liquor pipe and drain pipe is equipped with the spiral pipe, the both ends of spiral pipe are connected with refrigeration intake pipe and refrigeration outlet duct respectively, and refrigerate intake pipe and refrigeration outlet duct and all extend to the outside of the jar body, the below of refrigeration intake pipe is provided with the nitrogen gas intake pipe, and the inside that the nitrogen gas intake pipe extends to the inner bag, the liquid level detection appearance is installed to the vertical axis department of inner bag, the jar body is passed to the upper end of liquid level detection appearance to install relief valve, admission valve, pressure-measuring meter and temperature-measuring meter, three supporting leg is installed to the bottom of the jar body.

Preferably, the nitrogen gas inlet pipe is communicated with the refrigeration gas inlet pipe, and the liquid inlet pipe is communicated with the bottom end of the refrigeration gas outlet pipe.

The utility model has the advantages that:

this adiabatic jar of liquid nitrogen sets up equipment refrigeration intake pipe on the jar body, spiral pipe and refrigeration outlet duct, and with nitrogen gas intake pipe and refrigeration intake pipe intercommunication, feed liquor pipe and refrigeration outlet duct intercommunication make adiabatic jar area refrigeration function, realize during liquefaction and the storage of nitrogen gas advance adiabatic jar, and through the setting of relief valve, admission valve, temperature gauge and pressure gauge, can be to the monitoring of the interior liquid nitrogen storage condition of jar, the in time discovery of the abnormal conditions of being convenient for, and the safety in utilization is high.

Drawings

FIG. 1 is a schematic structural view of a liquid nitrogen heat-insulating tank according to the present invention;

fig. 2 is a top view of a liquid nitrogen heat-insulating tank according to the present invention;

fig. 3 is a schematic diagram of the internal structure of a liquid nitrogen heat-insulating tank according to the present invention.

Reference numbers in the figures: 1. a tank body; 2. an inner container; 3. a liquid inlet pipe; 4. a liquid outlet pipe; 5. a spiral tube; 6. a refrigeration air inlet pipe; 7. a refrigerating air outlet pipe; 8. a liquid outlet pipe; 9. a safety valve; 10. an intake valve; 11. a pressure gauge; 12. a temperature measuring meter; 13. a nitrogen inlet pipe; 14. and (7) supporting legs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-3, a liquid nitrogen heat insulation tank, including a tank body 1, be equipped with inner bag 2 in the jar body 1, and the high vacuum between inner bag 2 and the jar body 1, be provided with vertical feed liquor pipe 3 and drain pipe 4 of setting in the inner bag 2, the top of drain pipe 4 extends to the outside of the jar body 1, the outside cover of feed liquor pipe 3 and drain pipe 4 is equipped with spiral pipe 5, the both ends of spiral pipe 5 are connected with refrigeration intake pipe 6 and refrigeration outlet duct 7 respectively, and refrigeration intake pipe 6 and refrigeration outlet duct 7 all extend to the outside of the jar body 1, the below of refrigeration intake pipe 6 is provided with nitrogen gas intake pipe 13, and nitrogen gas intake pipe 13 extends to the inside of inner bag 2, liquid level detector 8 is installed to the vertical axis department of inner bag 2, the upper end of liquid level detector 8 passes jar body 1, and install relief valve 9, admission valve 10, pressure gauge 11 and temperature gauge 12, nitrogen gas intake pipe 13 is linked together with refrigeration intake pipe 6, feed liquor pipe 3 is linked together with the bottom of refrigeration outlet duct 7, three supporting legs 14 are installed to the bottom of the jar body 1.

The during operation, nitrogen gas joins with the air conditioning in the refrigeration intake pipe 6 through nitrogen gas intake pipe 13, the setting of spiral pipe 5, it has abundant time mixing contact to be convenient for nitrogen gas and air conditioning, and turn into liquid, 3 downward flows in inner bag 2 of liquid nitrogen accessible feed liquor pipe, air conditioning is gone upward the discharge through refrigeration outlet duct 7, back in the liquid nitrogen inflow inner bag 2, two valves and two detection tables on the liquid level detection appearance 8, can be used to the monitoring to the interior liquid nitrogen storage condition of jar, the timely discovery of the abnormal conditions of being convenient for.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a liquid nitrogen heat-insulating tank, includes a jar body (1), its characterized in that, be equipped with inner bag (2) in jar body (1), and the high vacuum between inner bag (2) and the jar body (1), be provided with feed liquor pipe (3) and drain pipe (4) of vertical setting in inner bag (2), the top of drain pipe (4) extends to the outside of the jar body (1), the outside cover of feed liquor pipe (3) and drain pipe (4) is equipped with spiral pipe (5), the both ends of spiral pipe (5) are connected with refrigeration intake pipe (6) and refrigeration outlet duct (7) respectively, and refrigerate intake pipe (6) and refrigeration outlet duct (7) and all extend to the outside of the jar body (1), the below of refrigeration intake pipe (6) is provided with nitrogen gas intake pipe (13), and nitrogen gas intake pipe (13) extend to the inside of inner bag (2), the vertical axis department of inner bag (2) installs liquid level detection appearance (8), the upper end of liquid level detection appearance (8) passes jar body (1) to install relief valve (9), admission valve (10), barometer (11) and temperature measurement table (12) the bottom of the jar body (14).

2. The liquid nitrogen heat insulation tank as claimed in claim 1, wherein the nitrogen gas inlet pipe (13) is communicated with the refrigeration gas inlet pipe (6), and the liquid inlet pipe (3) is communicated with the bottom end of the refrigeration gas outlet pipe (7).