Steam recovery device for air separation plant

Abstract

The utility model discloses a steam recovery device for an air separation plant, which comprises a condensate water storage box body, two support frames are symmetrically arranged on the upper surface of the condensate water storage box body, the tops of the two support frames are connected with a steam condensation box body, two ends of an inner cavity of the steam condensation box body are respectively provided with a fixed pipeline, and the fixed pipelines are connected with the condensate water storage box body. A plurality of heat exchange pipelines are connected between the two fixed pipelines, and the steam recovery device for the air separation equipment is provided with the plurality of heat exchange pipelines, so that more steam can be dispersed into the draft fan; a semiconductor cooler is arranged to be matched with a plurality of air draft fans, an air draft channel and an air inlet channel, so that flowing of cold air in the water vapor condensation box body is accelerated, and condensed water is conveniently conveyed into the condensed water storage box body through a condensed water receiving channel to be stored through a plurality of condensed water drop pipes; and water vapor can be conveniently and efficiently cooled, and the working efficiency of the air separation equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation equipment, in particular to a steam recovery device used for air separation equipment. Background Art

[0002] In industrial production, air separation equipment is generally used to produce oxygen and nitrogen. When the air separation unit is in operation, soft water is needed to flush the internal impeller and each molecular sieve. After flushing, the soft water is heated by its own heating mechanism to convert the soft water containing impurities into water vapor. In order to save resources, the water vapor can be recycled and reused. The existing steam recovery device for air separation equipment cannot quickly condense the water vapor, affecting production efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a steam recovery device for air separation equipment, which is convenient for efficiently cooling water vapor, improves the working efficiency of the air separation equipment, and can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A steam recovery device for an air separation plant comprises a condensed water storage box, the upper surface of which is symmetrically provided with two support frames, the tops of the two support frames are connected to a water vapor condensation box, both ends of the inner cavity of the water vapor condensation box are respectively provided with a fixed pipe, a plurality of heat exchange pipes are connected between the two fixed pipes, the bottoms of the plurality of heat exchange pipes are connected to condensed water drip pipes embedded in the lower surface of the water vapor condensation box, one of the fixed pipes is connected to a water vapor discharge channel embedded in the side wall of the water vapor condensation box, and the other fixed pipe is connected to a water vapor discharge channel embedded in the side wall of the water vapor condensation box. A water vapor inlet pipe embedded in the side wall of the water vapor condensation box is connected to the fixed pipe, an exhaust channel is provided on both sides of the water vapor condensation box, an exhaust fan is installed in the exhaust channel, a protective net is provided on the outside of the exhaust channel, a low-temperature box connected to its inner cavity is provided on the upper surface of the water vapor condensation box, a semiconductor refrigerator is embedded on the upper surface of the low-temperature box, an air intake channel is provided on each side of the low-temperature box, an adsorption groove is provided at the air intake channel, a dustproof net is installed in the adsorption groove, and a pick-up and drop groove is provided at the edge of the adsorption groove.

[0006] As a preferred technical solution of the utility model, a condensate discharge pipe is provided at the lower part of the side of the condensate storage box, and a control valve is installed on the condensate discharge pipe.

[0007] As a preferred technical solution of the present utility model, the heat exchange pipe is specifically an S-shaped structure.

[0008] As a preferred technical solution of the utility model, the upper surface of the condensed water storage box is provided with a condensed water receiving channel that cooperates with the condensed water dripping pipe.

[0009] As a preferred technical solution of the present invention, an observation window is provided on the side of the condensed water storage box.

[0010] As a preferred technical solution of the utility model, the cooling end of the semiconductor refrigerator is located in the inner cavity of the low-temperature box, and the heat dissipation end of the semiconductor refrigerator is located outside the low-temperature box.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By arranging a plurality of heat exchange pipes, more water vapor can be dispersed into the exhaust fan. By arranging a semiconductor refrigerator in conjunction with a plurality of exhaust fans, exhaust channels and air inlet channels, the flow of cold air in the water vapor condensation box can be accelerated. By arranging a plurality of condensed water droplets, the condensed water can be sent into the condensed water storage box through the condensed water receiving channel for storage, thereby facilitating efficient cooling of the water vapor and improving the working efficiency of the air separation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the partial cross-section structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the utility model in another direction.

[0016] In the figure: condensate storage box 1, condensate receiving channel 2, water vapor condensation box 3, dustproof net 4, water vapor discharge channel 5, semiconductor refrigerator 6, adsorption tank 7, water vapor inlet pipe 8, protection net 9, observation window 10, condensate discharge pipe 11, condensate drip pipe 12, exhaust fan 13, exhaust channel 14, low temperature box 15, heat exchange pipe 16, support frame 17, pick-up and drop groove 18, fixed pipe 19. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 , the utility model provides a technical solution:

[0019] A steam recovery device for an air separation device comprises a condensed water storage box 1, two support frames 17 are symmetrically arranged on the upper surface of the condensed water storage box 1, the tops of the two support frames 17 are connected to a water vapor condensation box 3, a fixed pipe 19 is arranged at each end of the inner cavity of the water vapor condensation box 3, a plurality of heat exchange pipes 16 are connected between the two fixed pipes 19, the bottoms of the plurality of heat exchange pipes 16 are connected to a condensed water drip pipe 12 embedded in the lower surface of the water vapor condensation box 3, one of the fixed pipes 19 is connected to a water vapor discharge channel 5 embedded in the side wall of the water vapor condensation box 3, and the other fixed pipe 19 is connected to a water vapor discharge channel 5 embedded in the side wall of the water vapor condensation box 3. The water vapor on the side wall of the air condensation box 3 enters the pipe 8, and an exhaust channel 14 is provided on both sides of the water vapor condensation box 3, and an exhaust fan 13 is installed in the exhaust channel 14. A protective net 9 is provided on the outside of the exhaust channel 14, and a low-temperature box 15 connected to its inner cavity is provided on the upper surface of the water vapor condensation box 3. A semiconductor refrigerator 6 is embedded on the upper surface of the low-temperature box 15, and an air inlet channel is provided on each side of the low-temperature box 15, and an adsorption groove 7 is provided at the air inlet channel. A dustproof net 4 is installed in the adsorption groove 7, and a pick-up and drop groove 18 is provided at the edge of the adsorption groove 7. The pick-up and drop groove 18 and the adsorption groove 7 are used to facilitate the disassembly and cleaning of the dustproof net 4.

[0020] A condensate discharge pipe 11 is provided at the lower part of the side of the condensate storage box 1 , and a control valve is installed on the condensate discharge pipe 11 , so that the condensate in the condensate storage box 1 can be discharged through the condensate discharge pipe 11 .

[0021] The heat exchange pipe 16 is specifically an S-shaped structure, so that the heat exchange area between the water vapor and the cold air in the water vapor condensation box 3 is larger.

[0022] The upper surface of the condensed water storage box 1 is provided with a condensed water receiving channel 2 which cooperates with the condensed water dripping pipe 12 .

[0023] An observation window 10 is provided on the side of the condensed water storage box 1 , through which the liquid level of the condensed water in the condensed water storage box 1 can be observed.

[0024] The cooling end of the semiconductor refrigerator 6 is located in the inner cavity of the low-temperature box 15 , and the heat dissipation end of the semiconductor refrigerator 6 is located outside the low-temperature box 15 .

[0025] The water vapor enters the pipe 8 to connect to the external water vapor pipe, and the water vapor enters into the multiple heat exchange pipes 16 along the fixed pipe 19 to be condensed simultaneously. The air in the low-temperature box 15 is cooled by the semiconductor refrigerator 6. The exhaust fan 13 installed in the exhaust channel 14 cooperates with the air inlet channel to send the cold air in the low-temperature box 15 into the water vapor condensation box 3, so as to condense the water vapor in the heat exchange pipe 16. After the water vapor is condensed into water, it enters the condensed water storage box 1 for storage. The dustproof net 4 can prevent dust from entering the water vapor condensation box 3 and adhering to the outer surface of the heat exchange pipe 16, thereby maintaining the heat exchange effect of the heat exchange pipe 16.

[0026] The semiconductor refrigerator 6 and the exhaust fan 13 are both common models on the market. The semiconductor refrigerator 6 and the exhaust fan 13 are both electrically connected to an external control switch, and the connection relationship is a common means in the prior art.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam recovery device for an air separation plant, comprising a condensate storage tank (1), characterized in that: Two support frames (17) are symmetrically arranged on the upper surface of the condensed water storage box (1), the tops of the two support frames (17) are connected to a water vapor condensation box (3), and a fixed pipe (19) is arranged at each end of the inner cavity of the water vapor condensation box (3), and a plurality of heat exchange pipes (16) are connected between the two fixed pipes (19), and the bottoms of the plurality of heat exchange pipes (16) are all connected to a condensed water drip pipe (12) embedded in the lower surface of the water vapor condensation box (3), one of the fixed pipes (19) is connected to a water vapor discharge channel (5) embedded in the side wall of the water vapor condensation box (3), and the other fixed pipe (19) is connected to a water vapor discharge channel (5) embedded in the side wall of the water vapor condensation box (3). Water vapor on the side wall of the box body (3) enters the pipe (8), and an exhaust channel (14) is provided on both sides of the water vapor condensation box body (3), an exhaust fan (13) is installed in the exhaust channel (14), and a protective net (9) is provided on the outside of the exhaust channel (14). The upper surface of the water vapor condensation box body (3) is provided with a low-temperature box body (15) connected to its inner cavity, and a semiconductor refrigerator (6) is embedded in the upper surface of the low-temperature box body (15). An air intake channel is provided on each side of the low-temperature box body (15), and an adsorption groove (7) is provided at the air intake channel. A dustproof net (4) is installed in the adsorption groove (7), and a pick-up and drop groove (18) is provided at the edge of the adsorption groove (7).

2. The steam recovery device for air separation equipment according to claim 1, characterized in that: A condensate discharge pipe (11) is provided at the lower part of the side of the condensate storage box (1), and a control valve is installed on the condensate discharge pipe (11).

3. The steam recovery device for air separation equipment according to claim 1, characterized in that: The heat exchange pipe (16) is specifically an S-shaped structure.

4. The steam recovery device for air separation equipment according to claim 1, characterized in that: The upper surface of the condensed water storage box (1) is provided with a condensed water receiving channel (2) that cooperates with the condensed water dripping pipe (12).

5. The steam recovery device for air separation equipment according to claim 1, characterized in that: An observation window (10) is provided on the side of the condensed water storage box (1).

6. The steam recovery device for air separation equipment according to claim 1, characterized in that: The cooling end of the semiconductor refrigerator (6) is located in the inner cavity of the low-temperature box (15), and the heat dissipation end of the semiconductor refrigerator (6) is located outside the low-temperature box (15).

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