CN220082806U

CN220082806U - Nitrogen storage device

Info

Publication number: CN220082806U
Application number: CN202321714963.9U
Authority: CN
Inventors: 马水潮; 李贤�
Original assignee: Inner Mongolia Jinyou Chemical Co ltd
Current assignee: Inner Mongolia Jinyou Chemical Co ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-11-24
Anticipated expiration: 2033-07-03

Abstract

The utility model discloses a nitrogen storage device, which comprises a tank body, wherein the tank body is connected with an air-temperature vaporizer, and the air-temperature vaporizer is arranged in a shell; the shell is internally provided with a heat exchange cavity and an air inlet cavity, the upper part of the shell is provided with a gas guide chamber, a partition plate is arranged between the heat exchange cavity and the air inlet cavity, and the air inlet cavity is communicated with the heat exchange cavity through the gas guide chamber; the bottom of the side wall of the air inlet cavity is provided with an air inlet which is communicated with the air conveying fan, and the bottom of the heat exchange cavity is provided with an air outlet. Air enters the air inlet cavity through the air conveying fan through the air inlet, water vapor in the air is liquefied by the cold partition plate, the water vapor in the air is reduced after being liquefied by the cold partition plate, low-temperature air is discharged from the air outlet, the water vapor in the air is reduced, solidification of the air after being liquefied by the air gasifier can be avoided, low-temperature liquid nitrogen backflow caused by blockage of the radiating fins is avoided, and the danger that the valve, the connecting pipeline and the air storage tank are broken in a low-temperature brittle manner to cause pipeline leakage or tank body burst is avoided.

Description

Nitrogen storage device

Technical Field

The utility model relates to the technical field of nitrogen storage, in particular to a nitrogen storage device.

Background

Nitrogen is widely applied in industrial production, and a nitrogen storage tank is storage equipment for transporting and using nitrogen, has the characteristic of high pressure resistance, and can generally store high-pressure liquid nitrogen.

When the liquid nitrogen in the storage tank is converted into a gaseous state, heat is required to be absorbed, in the prior art, the liquid nitrogen flows through the air-temperature gasifier with the fins, and when the low-temperature liquid nitrogen flows into the air-temperature gasifier, the air around the air-temperature gasifier exchanges heat with the low-temperature liquid nitrogen through the fins, so that the gasification of the liquid nitrogen is realized.

In practical use, the gasifier can be used for a long time, water vapor in the air is condensed on the surfaces of the fins, heat exchange gaps among the fins are blocked, the heat exchange between liquid nitrogen and the air is affected, the low-temperature liquid nitrogen can not be completely gasified, partial low-temperature liquid nitrogen flows back, the low-temperature liquid nitrogen flows back to the valve, the connecting pipeline and the gas storage tank, and the low-temperature brittle failure can occur, so that the pipeline leakage or the tank body burst risk is caused.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a nitrogen storage device, which is used for avoiding the danger that the heat exchange between the liquid nitrogen and the air is affected by condensation of water vapor in the air on the surface of a fin when the stored liquid nitrogen is converted into a gaseous state, so that the nitrogen storage device component is broken at a low temperature to cause leakage of a pipeline or burst of a tank body.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the nitrogen storage device comprises a tank body, wherein the tank body is connected with an air-temperature gasifier, and the air-temperature gasifier is arranged in a shell;

the shell is internally provided with a heat exchange cavity and an air inlet cavity, the upper part of the shell is provided with an air guide chamber, a partition plate is arranged between the heat exchange cavity and the air inlet cavity, and the air inlet cavity is communicated with the heat exchange cavity through the air guide chamber;

the side wall bottom of the air inlet cavity is provided with an air inlet, the air inlet is communicated with the air conveying fan, and the bottom of the heat exchange cavity is provided with an air outlet.

In one embodiment of the utility model, a groove is arranged in the air guide chamber, and a drying agent is placed in the groove.

In one embodiment of the utility model, the baffle is provided with a drainage groove, and the lower part of the baffle is provided with a water collecting groove.

In an embodiment of the utility model, an exhaust fan is connected to the air outlet.

In an embodiment of the utility model, protection plates are arranged on two sides of the tank body.

In an embodiment of the utility model, a supporting rod is arranged between the tank body and the protection plate, and a cushion block is arranged between the tank body and the bottom plate.

In an embodiment of the utility model, the outer wall of the heat exchange cavity is provided with a viewing port.

The utility model has the beneficial effects that: the air-temperature gasifier connected with the tank body is arranged in the heat exchange cavity of the shell, so that the air-temperature gasifier is prevented from being directly contacted with outside air, water and gas contained in the air meet condensation junctions to block the radiating fins of the air-temperature gasifier, and the outside air enters the air inlet cavity through the air inlet through the air conveying fan. Air enters the air inlet cavity through the air inlet through the air conveying fan, water vapor in the air is liquefied by the cold partition plate, the partition plate is cooled by utilizing low temperature in the heat exchange cavity, and the partition plate is not required to be cooled by a cooling device. On the one hand, the water vapor in the air is liquefied and released by cooling, and the heat is conducted into the heat exchange cavity through the partition plate, so that the heat exchange of the air-temperature gasifier is benefited, on the other hand, the water vapor in the air is reduced after the water vapor in the air is liquefied by cooling, the air enters the heat exchange cavity through the air guide chamber to be subjected to further geothermal exchange, the low-temperature air is discharged from the air outlet, the water vapor in the air is reduced, the water vapor in the air can be prevented from solidifying after being liquefied by the air-temperature gasifier, the heat radiating fins are prevented from being blocked, and the danger that the valve, the connecting pipeline and the air storage tank are broken at low temperature to cause pipeline leakage or tank burst is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a nitrogen storage device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing a connection structure between a tank body of a nitrogen storage device and an air-temperature vaporizer according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a nitrogen storage device according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a nitrogen storage device according to an embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a nitrogen storage device according to an embodiment of the present utility model;

in the figure: the air-temperature gasifier comprises a tank body-1, an air-temperature gasifier-2, a shell-3, a protection plate-4 and an observation port-5;

the heat exchange cavity-31, the air inlet cavity-32, the air guide chamber-33 and the partition plate-34;

an air outlet-311;

an exhaust fan-3111;

the air inlet is 321, and the air conveying fan is 322;

groove-331;

drainage tank-341, water collection tank-342;

the bottom plate-41, the supporting rod-42 and the cushion block-43;

fins-100, nitrogen outlet-101.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are also within the scope of the utility model.

It should be noted that in the description of the present utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The nitrogen storage device provided by the embodiment, as shown in fig. 1-5, comprises a tank body 1, wherein the tank body 1 is connected with an air-temperature gasifier 2, and the air-temperature gasifier 2 is arranged in a shell 3; a heat exchange cavity 31 and an air inlet cavity 32 are arranged in the shell 3, an air guide chamber 33 is arranged at the upper part of the shell 3, a partition plate 34 is arranged between the heat exchange cavity 31 and the air inlet cavity 32, and the air inlet cavity 32 is communicated with the heat exchange cavity 31 through the air guide chamber 33; an air inlet 321 is formed in the bottom of the side wall of the air inlet cavity 32, the air inlet 321 is communicated with a blower 322, and an air outlet 311 is formed in the bottom of the heat exchange cavity 31.

By arranging the air-temperature vaporizer 2 connected with the tank 1 in the heat exchange cavity 31 of the housing 3, the air-temperature vaporizer 2 is prevented from being directly contacted with external air, and moisture contained in the air is condensed to block the heat dissipation fins 100 (shown in fig. 3) of the air-temperature vaporizer 2, wherein the air-temperature vaporizer 2 can be referred to related description in the prior art and is not repeated here. Outside air enters the air inlet cavity 32 through the air inlet 321 by the air conveying fan 322, and as the liquid nitrogen stored in the tank body 1 flows into the air-temperature gasifier 2 and absorbs heat and gasifies in the air-temperature gasifier 2, the temperature around the air-temperature gasifier 2 is reduced, namely the temperature in the heat exchange cavity 31 is reduced. Preferably, the partition 34 between the heat exchange cavity 31 and the air inlet cavity 32 is made of a metal plate with good heat conducting performance, so that the partition 34 is easier to lower along with the temperature of the heat exchange cavity 31, external air enters the air inlet cavity 32 through the air inlet 321 by the air conveying fan 322, water vapor in the air is liquefied by the cold partition 34, on one hand, the water vapor in the air is liquefied and releases heat by cold liquefaction, heat is conducted into the heat exchange cavity 31 by the partition 34, the heat exchange of the air gasifier 2 is benefited, on the other hand, the water vapor in the air is reduced after the water vapor in the air is liquefied by cold liquefaction, the air enters the heat exchange cavity 31 through the air guide chamber 33 for further heat exchange, the low-temperature air is discharged from the air outlet, the water vapor in the air is reduced, the water vapor in the air can be prevented from being solidified after being liquefied by the air gasifier 2 by the air conveying fan 322, the heat dissipation gaps among the heat dissipation fins 100 are blocked, the problem that the low-temperature liquid nitrogen is insufficiently gasified to flow back the low-temperature liquid nitrogen is avoided, and the valve, the connecting pipeline and the gas storage tank are prevented from being broken by low-temperature embrittlement or the tank body bursting danger is caused.

The cold separator 34 can pre-cool the air entering the air inlet cavity 32 to reduce the temperature difference between the air and the heat exchange cavity 31, and prevent the solid components in the heat exchange cavity 31 from being deformed and damaged due to uneven expansion caused by uneven heating.

In one embodiment of the present utility model, as shown in fig. 4, a groove 331 is disposed in the air guiding chamber 33, and a desiccant is disposed in the groove 331.

The air in the air inlet cavity 32 enters the heat exchange cavity 31 through the air guide chamber 33, the air guide chamber 33 is provided with the groove 331, and the drying agent is placed in the groove 331, and can be calcium chloride drying agent, so that the drying agent can further absorb moisture contained in the air and is used for keeping the air in the heat exchange cavity 31 dry and avoiding frosting and condensation of the moisture on the air gasifier 2.

In one embodiment of the present utility model, as shown in fig. 3, a drainage groove 341 is disposed on the partition 34, and a water collection groove 342 is disposed below the partition 34.

The baffle 34 is provided with the drainage groove 341, so that on one hand, the contact area of the baffle 34 and air can be increased, the cold liquefying efficiency of water vapor in the air on the baffle 34 is improved, on the other hand, the drainage groove 341 plays a role in guiding the liquefied water vapor to avoid the liquefied water to be remained and condensed into ice on the baffle 34, and the condensing effect of the baffle 34 is reduced.

In one embodiment of the present utility model, as shown in fig. 3, an exhaust fan 3111 is connected to the air outlet 311.

The exhaust fan 3111 is turned on to accelerate the air flow in the heat exchange chamber 31, to raise the heat exchange efficiency between the air and the air-conditioning vaporizer 2, and the exhaust fan 3111 is exhausted to the outside to prevent the outside air from entering the heat exchange chamber 31.

In one embodiment of the present utility model, as shown in fig. 1 and 4, the tank 1 is provided with a protection plate 4 at both sides, and a bottom plate 41 is provided under the protection plate 4.

The protection plates 4 are arranged on the two sides of the tank body 1, so that the tank body 1 can be prevented from being damaged by collision, or after the tank body 1 leaks, liquid nitrogen is prevented from splashing to staff to cause cold burn.

In one embodiment of the present utility model, as shown in fig. 1, a supporting rod 42 is disposed between the tank 1 and the protection plate, and a cushion block 43 is disposed between the tank 1 and the bottom plate 41.

The bracing piece 42 is used for filling the space between jar body 1 and guard plate 4, plays the supporting role to jar body 1, avoids jar body 1 to take place to rock, keeps the stability of jar body 1, and cushion 43 is used for filling the space between jar body 1 and bottom plate 41 from top to bottom, increases the strong point between jar body 1 and bottom plate 41, improves the stability of jar body 1.

In one embodiment of the present utility model, as shown in fig. 5, the outer wall of the heat exchange chamber 31 is provided with a viewing port 5, and the viewing port 5 is covered with a transparent plate.

The observation port 5 is used for observing the condition of the air-temperature gasifier 2 in the heat exchange cavity 31 in real time, and can timely find out the abnormal condition in the heat exchange cavity 31, if the air-temperature gasifier 2 is found to be severely frosted, the drying agent in the groove 331 can be replaced, or the wind speeds of the air conveying fan 322 and the exhaust fan 3111 can be adjusted, so that the air flow is quickened, the heat exchange efficiency of the air and the air-temperature gasifier is improved, more air is led in, more heat is brought in, excessive moisture is prevented from condensing and blocking between the radiating fins of the air-temperature gasifier, the heat dissipation is influenced, the transparent acrylic plate is covered at the observation port 5, and the external air is prevented from entering.

In the actual use process of converting the stored liquid nitrogen into a gaseous state: the tank body 1 is connected with the air gasifier, the tank body 1 is opened, liquid nitrogen flows out of the tank body 1 and flows into the air gasifier 2, the liquid nitrogen absorbs heat in the air gasifier 2 to gasify, the air gasifier 2 is arranged in the heat exchange cavity 31 of the shell, the air gasifier 2 absorbs heat to conduct low temperature to the partition plate 34, the temperature of the partition plate 34 is reduced, the partition plate 34 separates the heat exchange cavity 31 from the air inlet cavity 32 to prevent external air from directly entering the heat exchange cavity 31, meanwhile, the partition plate 34 plays a role of a condensing plate, the external air enters the air inlet cavity 32 through the air inlet 321 by the air conveying fan 322, the air inlet cavity 32 is communicated with the heat exchange cavity 31 through the air guide chamber 33, and when the external air meets the partition plate 34 with lower temperature, the water vapor in the air can flow into the water collecting tank 342 along the drainage groove 341 on the partition plate, so that the influence of the liquid nitrogen 100 of the condensed and frozen air gasifier 2 on the heat exchange of the air when the air enters the heat exchange cavity 31 is avoided, the low temperature cannot completely break the heat dissipation pipeline of the liquid nitrogen, and the low temperature part of the low temperature gasifying part is broken. The air flows through the air guide chamber 33, a groove 331 is arranged in the air guide chamber 33, a drying agent is placed in the groove 331, the air is contacted with the drying agent, the drying agent further absorbs residual moisture in the air, the air enters the heat exchange cavity 31 to exchange heat with the air-temperature gasifier 2, and then the air is discharged out of the heat exchange cavity 31 through the air outlet 311 by the exhaust fan 3111.

The utility model is more suitable for a wet workshop environment or a continuous overcast and rainy weather and a high air humidity.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will appreciate that; the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The nitrogen storage device is characterized by comprising a tank body (1), wherein the tank body (1) is connected with an air-temperature gasifier (2), and the air-temperature gasifier (2) is arranged in a shell (3);

a heat exchange cavity (31) and an air inlet cavity (32) are arranged in the shell (3), an air guide chamber (33) is arranged at the upper part of the shell (3), a partition plate (34) is arranged between the heat exchange cavity (31) and the air inlet cavity (32), the partition plate (34) is obliquely arranged in the shell (3), and the air inlet cavity (32) is communicated with the heat exchange cavity (31) through the air guide chamber (33);

the side wall bottom of air inlet cavity (32) is provided with air inlet (321), air inlet (321) are linked together with defeated fan (322), heat exchange cavity (31) bottom is provided with gas outlet (311).

2. Nitrogen storage device according to claim 1, characterized in that a recess (331) is provided in the gas-guide chamber (33), a desiccant being placed in the recess (331).

3. Nitrogen storage device according to claim 1, characterized in that the baffle plate (34) is provided with a drainage groove (341), and that a water collection groove (342) is provided below the baffle plate (34).

4. Nitrogen storage device according to claim 1, characterized in that an exhaust fan (3111) is connected to the air outlet (311).

5. Nitrogen storage device according to claim 1, characterized in that the tank (1) is provided with protection plates (4) on both sides, a bottom plate (41) being provided below the protection plates (4).

6. Nitrogen storage device according to claim 1, characterized in that a support bar (42) is arranged between the tank (1) and the protection plate (4), and a cushion block (43) is arranged between the tank (1) and the bottom plate (41).

7. Nitrogen storage device according to claim 1, characterized in that the outer wall of the heat exchange chamber (31) is provided with a viewing port (5).