Demisting device of liquid nitrogen gasifier

Abstract

The utility model discloses a liquid nitrogen vaporizer demisting device which comprises a liquid nitrogen vaporizer, a fence structure and a high-pressure spraying device, the liquid nitrogen vaporizer is arranged in the fence structure, a preset distance is kept between the liquid nitrogen vaporizer and the inner side wall and the top wall of the fence structure, an air inlet is formed in the bottom of the fence structure, and the high-pressure spraying device is arranged in the fence structure. An air outlet of the high-pressure spraying device is opposite to an air inlet of the enclosure structure, so that hot air or steam output by the high-pressure spraying device can enter the enclosure structure, and an air outlet communicated with the atmosphere is formed in the top of the enclosure structure. According to the liquid nitrogen vaporizer, fog can be effectively eliminated, the purpose of not influencing traffic and personal safety in the surrounding environment is achieved, the heat exchange efficiency can be greatly improved by increasing the flow speed of air around the liquid nitrogen vaporizer, and the purpose of saving energy can be achieved by effectively prolonging the equipment switching time.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid nitrogen gasifier equipment technical field especially relates to a liquid nitrogen gasifier demisting device. BACKGROUND

[0002] Liquid nitrogen gasifier is a kind of new high-efficiency environmental protection energy-saving device using air to carry out heat exchange work, mainly used for low temperature (-104 ℃~-196 ℃) fluid, such as: liquid oxygen (LO2), liquid nitrogen (LN2), liquid argon (LA r ), liquefied natural gas (LNG), liquid ethylene (LC2H4) etc. low-temperature medium gasification, i.e. low-temperature liquid is changed into normal temperature gas, to meet the application of steel, solar energy, electronics, shipbuilding, natural gas industry, chemical industry etc. each field. Generally, the liquid nitrogen gasifier of larger specification (≥2000Nm 3 / h) exists fogging phenomenon in actual application process, and white fog does not have chemical pollution to environment, but a large amount of white fog diffusion to production area can affect the vision of operator, and the white fog of large gasification station can diffuse the whole area, which brings security risk to normal operation of factory and road traffic.

[0003] Therefore, the technical personnel in the art is committed to developing a liquid nitrogen gasifier demisting device to overcome the problems existing in the prior art. CONTENT OF UTILITY MODEL

[0004] In view of the above defects of prior art, the technical problem to be solved by the utility model is how to eliminate the white fog generated when liquid nitrogen gasifier is used.

[0005] To realize the above-mentioned purpose, the utility model provides a liquid nitrogen gasifier demisting device, which comprises a liquid nitrogen gasifier, a fence structure and a high-pressure spraying device, the liquid nitrogen gasifier is arranged in the fence structure, the liquid nitrogen gasifier and the inner side wall and top wall of the fence structure keep a predetermined distance, the bottom of the fence structure is provided with an air inlet, the air outlet of the high-pressure spraying device is arranged opposite to the air inlet of the fence structure, so that the hot air or steam output by the high-pressure spraying device can enter the fence structure, and the top of the fence structure is provided with an air outlet communicated with atmosphere.

[0006] Further, the fence structure adopts a tapered structure with wide lower part and narrow upper part.

[0007] Further, the high-pressure spraying device comprises a vortex fan and a steam inlet, the steam inlet pipeline is connected to the air outlet of the vortex fan, and the air outlet of the vortex fan serves as the air outlet of the high-pressure spraying device.

[0008] Further, the air outlet of the vortex fan is provided with a nozzle.

[0009] Further, the air inlet of the enclosure structure is an open pipe flange.

[0010] Further, the air outlet of the vortex fan is kept a predetermined distance from the air inlet of the enclosure structure.

[0011] Further, the nozzle is made of stainless steel.

[0012] Further, the number of the nozzles is greater than 24.

[0013] Further, the static wind range of the vortex fan is 40m.

[0014] Further, the liquid nitrogen vaporizer comprises a supercooling section, a heating section, a liquid inlet and a gas outlet, the liquid inlet is connected to the gas outlet in sequence through the supercooling section and the heating section, and the air inlet of the enclosure structure is arranged close to the liquid inlet and away from the gas outlet.

[0015] The beneficial effects of the utility model are: white mist can be eliminated, heat exchange efficiency can be improved, and the purpose of energy saving can be achieved.

[0016] The concept, specific structure and technical effects of the utility model will be further described below with reference to the drawings, so as to fully understand the purpose, features and effects of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a preferred embodiment of the utility model.

[0018] Among them, 1-liquid nitrogen vaporizer, 2-enclosure structure, 3-high pressure spraying device, 5-enclosure structure air inlet, 6-high pressure spraying device air outlet, 7-enclosure structure air outlet, 8-vortex fan, 9-steam inlet, 10-nozzle, 11-supercooling section 1, 12-heating section, 13-liquid inlet, 14-gas outlet. DETAILED DESCRIPTION

[0019] The preferred embodiments of the utility model are introduced below with reference to the drawings, so that the technical content is clearer and easier to understand. The utility model can be embodied by many different forms of embodiments, and the protection scope of the utility model is not limited to the embodiments mentioned in the text.

[0020] In the drawings, components with the same structure are indicated by the same reference numerals, and components with similar structures or functions are indicated by similar reference numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the size and thickness of each component are not limited in the utility model. In order to make the drawing clearer, the thickness of some components is appropriately exaggerated in the drawing.

[0021] AsFigure 1 The embodiment shown provides a demisting device for a liquid nitrogen vaporizer, which comprises a liquid nitrogen vaporizer 1, an enclosure structure 2, and a high-pressure spraying device 3. The liquid nitrogen vaporizer 1 is arranged in the enclosure structure 2, and the liquid nitrogen vaporizer 1 is kept at a predetermined distance from the inner side wall and the top wall of the enclosure structure 2. The bottom of the enclosure structure 2 is provided with an enclosure structure air inlet 5, and the high-pressure spraying device air outlet 6 is arranged opposite to the enclosure structure air inlet 5, so that the hot air or steam output by the high-pressure spraying device 3 can enter the enclosure structure 2. The top of the enclosure structure 2 is provided with an enclosure structure air outlet 7 that is in communication with the atmosphere.

[0022] In some embodiments, the enclosure structure 2 can adopt a tapered structure that is wide at the bottom and narrow at the top.

[0023] The high-pressure spraying device 3 comprises an impeller fan 8 and a steam inlet 9. The steam inlet 9 is connected to the air outlet of the impeller fan 8 by a pipeline, and the air outlet of the impeller fan 8 serves as the high-pressure spraying device air outlet 6.

[0024] The air outlet of the impeller fan 8 is provided with a nozzle 10. The enclosure structure air inlet 5 is an open pipeline flange. The air outlet of the impeller fan 8 is kept at a predetermined distance from the enclosure structure air inlet 5.

[0025] In some embodiments, the nozzle 10 is made of stainless steel.

[0026] The liquid nitrogen vaporizer 1 comprises a supercooling section 11, a heating section 12, a liquid inlet 13, and a gas outlet 14. The liquid inlet 13 is connected to the gas outlet 14 in sequence through the supercooling section 11 and the heating section 12. The enclosure structure air inlet 5 is arranged close to the liquid inlet 13 and away from the gas outlet 14.

[0027] In this embodiment, the parameters of the high-pressure spraying device 3 are as follows: the static wind range is 40 m, the coverage area is less than or equal to 4800 m 2 , the total power of the motor is less than or equal to 13 kW, the pitch angle is -5° to 35°, the rotation angle is 0° to 340°, the number of air outlet nozzles is greater than 24, and the environmental temperature is -5° to 50°.

[0028] This embodiment uses the enclosure structure 2 to concentrate the mist in the enclosure structure 2, thereby preventing the mist from spreading to the surroundings. Figure 1Hollow arrow 7 indicates the direction of the airflow. High-pressure spray device 3 adjusts the appropriate amount of wind according to the amount of mist produced and discharges the mist upward, and a stainless steel nozzle 10 is provided at the air outlet 6 of the high-pressure spray device and is connected to hot air or steam, which is fully mixed with the internal cold air again during delivery. When a large amount of narrow space has a warm air flow rising, the cold air above the liquid nitrogen vaporizer 1 descends, the air flows of different temperatures and humidities collide, form mist and vortex, and are discharged upward, thereby effectively eliminating the mist, achieving the purpose of not affecting the surrounding environment, traffic and personal safety, and greatly improving the heat exchange efficiency by increasing the air flow rate around the liquid nitrogen vaporizer 1, which can effectively prolong the equipment switching time and achieve the purpose of energy saving.

[0029] The preferred embodiments of the present application are described in detail above. It should be understood that those skilled in the art can make many modifications and changes to the present application without creative labor based on the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the existing technology according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A demister for a liquid nitrogen vaporizer, comprising: The device comprises a liquid nitrogen gasifier, an enclosure structure, and a high-pressure spray device, the liquid nitrogen gasifier is arranged in the enclosure structure, the liquid nitrogen gasifier is kept a predetermined distance from the inner side wall and the top wall of the enclosure structure, the bottom of the enclosure structure is provided with an air inlet, the air outlet of the high-pressure spray device is arranged opposite to the air inlet of the enclosure structure, so that the hot air or steam output by the high-pressure spray device can enter the enclosure structure, and the top of the enclosure structure is provided with an air outlet which is communicated with the atmosphere.

2. The demister device for a liquid nitrogen vaporizer as claimed in claim 1, wherein The enclosure structure adopts a tapered structure which is wide at the bottom and narrow at the top.

3. The demister device for a liquid nitrogen vaporizer as claimed in claim 1, wherein The high-pressure spray device comprises a vortex fan and a steam inlet, the steam inlet is connected to the air outlet of the vortex fan by a pipeline, and the air outlet of the vortex fan serves as the air outlet of the high-pressure spray device.

4. The demister for a liquid nitrogen vaporizer as claimed in claim 3, wherein The air outlet of the vortex fan is provided with a nozzle.

5. The demister device for a liquid nitrogen vaporizer as claimed in claim 4, wherein The air inlet of the enclosure structure is an open flange.

6. The demister device for a liquid nitrogen vaporizer as claimed in claim 3, wherein The air outlet of the vortex fan is kept a predetermined distance from the air inlet of the enclosure structure.

7. The demister device for a liquid nitrogen vaporizer as claimed in claim 4, wherein The nozzle is made of stainless steel.

8. The demister device for a liquid nitrogen vaporizer as claimed in claim 4, wherein The number of nozzles is greater than 24.

9. The demister device for a liquid nitrogen vaporizer as claimed in claim 3, wherein The static wind range of the vortex fan is 40 m.

10. The demister device for a liquid nitrogen vaporizer as claimed in claim 1, wherein The liquid nitrogen gasifier comprises a supercooling section, a heating section, a liquid inlet, and a gas outlet, the liquid inlet is connected to the gas outlet in sequence through the supercooling section and the heating section, and the air inlet of the enclosure structure is arranged close to the liquid inlet and away from the gas outlet.

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