Atmosphere mixing condenser

Abstract

The utility model discloses an atmosphere mixing condenser which comprises a tank body and a central pipe, the central pipe is inserted into the tank body from the top of the tank body along the central axis of the tank body, the bottom of the central pipe is closed, and a plurality of steam outlets are formed in the lower portion of the central pipe in the circumferential direction of the central pipe. And the steam outlet is communicated with the inner part of the central pipe and the inner space of the tank body. The atmosphere mixing condenser provided by the utility model can solve the technical problem that potential safety hazards are brought to a plant due to the fact that the noise of a lower cone part is very large and the vibration of equipment and a sewer line is large in the operation process of the existing atmosphere mixing condenser.

Description

Technical Field

[0001] The utility model relates to the technical field of condensers, in particular to an atmospheric mixing condenser. Background Art

[0002] The formation of the final vacuum degree of the multi-effect evaporation process is usually achieved by combining an atmospheric mixing condenser and a non-condensable gas extraction device. The final secondary steam enters the lower part of the atmospheric mixing condenser, and the cooling water enters the upper part. The cooling water and the secondary steam exchange heat in countercurrent, so that the secondary steam is condensed and the volume is suddenly reduced by about 1380 times to form a vacuum.

[0003] At present, the atmospheric mixing condenser of domestic vacuum salt making equipment generally adopts a structure in which the secondary steam pipe is inserted from the center of the tank body into the middle and lower part of the atmospheric mixing condenser, and the cooling water enters the tank body from the upper part and evenly pours down around the inside. It has the advantages of simple structure and fast vacuum formation, such as the Chinese utility model patent "A secondary steam condensation system" with patent number ZL201420702277.4. However, in the existing atmospheric mixing condenser, the last-effect secondary steam is dispersed in the lower part of the atmospheric mixing condenser to contact and exchange heat with the surrounding cooling water to form condensed water and discharge. Due to the short contact time between steam and water, some uncondensed secondary steam enters the lower cone of the atmospheric mixing condenser, and with the gradual reduction of the volume of the lower cone, the phenomenon of steam-water impact occurs, resulting in a loud noise in the lower cone of the atmospheric mixing condenser, vibration of the equipment and sewer pipes, and a safety hazard to the factory. Utility Model Content

[0004] The utility model provides an atmospheric mixing condenser with an improved structure, which can solve the technical problem that the lower cone part of the existing atmospheric mixing condenser makes a loud noise during operation, the equipment and the sewer pipe vibrate greatly, thus causing safety hazards to the factory.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] An atmospheric mixing condenser comprises a tank body and a central tube, wherein the central tube is inserted from the top of the tank body into the interior of the tank body along the central axis of the tank body, the bottom of the central tube is closed, and a plurality of steam outlets are formed at the lower part of the central tube along the circumference of the central tube, and the steam outlets connect the space inside the central tube and the space inside the tank body.

[0007] In an embodiment, the tank body includes an upper cone, a lower cone and a cylinder, the upper cone and the lower cone are respectively arranged at the upper and lower ends of the cylinder, the top of the upper cone is open, the center tube is arranged in the opening, a steam inlet is formed at the top of the center tube, a cooling water outlet is formed at the bottom of the lower cone, and a cooling water inlet is formed on one side of the upper part of the cylinder.

[0008] In an embodiment, a rubber shock absorber is further included, and the rubber shock absorber is installed at the cooling water outlet.

[0009] In an embodiment, the sum of the areas of the plurality of steam outlets is three times the cross-sectional area of ​​the central tube.

[0010] In an embodiment, the plurality of steam outlets are opened on the tube wall of the central tube in two layers, upper and lower layers, and the steam outlets in each layer are evenly arranged.

[0011] In an embodiment, a plurality of baffles and water spraying plates are further included, and the plurality of baffles and water spraying plates are surrounded on the outside of the wall of the central tube.

[0012] In an embodiment, each layer of the water spraying plate is formed with a plurality of water spraying holes.

[0013] In an embodiment, the plurality of water spray holes are distributed along the circumference of the water spray plate in the form of concentric circles.

[0014] In an embodiment, a plurality of support plates are further included, and the plurality of support plates surround the outside of the wall of the central tube and are used to fix the central tube.

[0015] Compared with the prior art, the beneficial effects of the utility model mainly include:

[0016] The utility model provides an atmospheric mixing condenser, which is an improvement on the existing atmospheric mixing condenser structure. Specifically, the bottom of the central tube is sealed, and then a plurality of steam outlets for connecting the interior of the central tube and the interior space of the tank body are opened along the circumference of the central tube at the lower part of the central tube. In this way, the steam in the central tube is changed from being emitted from the bottom of the central tube to being discharged from the steam outlet at the lower part of the central tube, and the steam flow direction is changed from vertical axial flow to radial flow, which can fully contact the cooling water flowing downward, so that heat exchange is sufficient, the generation of uncondensed steam is avoided, and the steam-water impact is reduced, thereby achieving the effect of reducing noise and alleviating vibration, and avoiding safety hazards in factory buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an existing atmospheric mixing condenser;

[0018] Figure 2 It is a structural schematic diagram of the atmospheric mixing condenser described in the utility model.

[0019] 1. tank body, 11. upper cone, 12. lower cone, 121. cooling water outlet, 13. cylinder, 131. cooling water inlet;

[0020] 2. center tube, 21. steam outlet, 22. steam inlet;

[0021] 3. Water spray board;

[0022] 4. Baffle;

[0023] 5. Support plate. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] like Figure 1 As shown, the bottom of the central tube 2 of the existing atmospheric mixing condenser is open, so the steam is dispersed from the bottom of the central tube 2 and contacts with the surrounding cooling water for heat exchange to form condensed water, which is discharged into the lower cone 12 and then discharged from the atmospheric mixing condenser. However, due to the short contact time between steam and water, some uncondensed steam enters the lower cone 12. At the same time, as the volume of the lower cone 12 gradually decreases, steam-water impact occurs, causing the lower cone 12 to make a loud noise, and the equipment and sewer pipes to vibrate, endangering the safety of the plant.

[0026] In view of the above technical problems, the utility model improves the existing atmospheric mixing condenser and proposes a new atmospheric mixing condenser. Figure 2 A schematic diagram of the structure of the atmospheric mixing condenser described in the utility model is given, such as Figure 2 As shown, the atmospheric mixing condenser provided by the utility model includes a tank body 1 and a central tube 2, the tank body 1 provides a condensation place for steam condensation, the central tube 2 is inserted from the top of the tank body 1 to the interior of the tank body 1 along the central axis direction of the tank body 1, the bottom of the central tube 2 is closed, and the lower part of the central tube 2 is formed with a plurality of steam outlets 21 along the circumference of the central tube, and the steam outlet 21 connects the interior of the central tube 2 with the space inside the tank body 1.

[0027] The utility model provides an atmospheric mixing condenser, which closes the bottom of a central tube 2 and opens a plurality of steam outlets 21 at the lower part of the central tube 2 along the circumference of the central tube for connecting the central tube 2 with the inner space of a tank body 1. In this way, the steam in the central tube 2 is discharged from the steam outlets 21 at the lower part of the central tube 2 instead of being discharged from the bottom of the central tube 2. The steam flow direction is changed from the original vertical axial flow to radial flow, so that the steam can fully contact the cooling water flowing downward, so that the heat exchange is sufficient, the generation of uncondensed steam is avoided, and the steam-water shock is reduced, so as to achieve the effect of reducing the noise and alleviating the vibration, and can avoid the safety hazards in the factory building.

[0028] The sum of the areas of the plurality of steam outlets 21 is three times the cross-sectional area of ​​the central tube 2 , so that no resistance is generated to the steam flow.

[0029] The plurality of steam outlets 21 are opened on the tube wall of the central tube 2 in two layers, upper and lower layers, and the steam outlets 21 in each layer are evenly arranged.

[0030] The number of the steam outlets 21 on each layer is 6, and the 6 steam outlets 21 are evenly arranged.

[0031] The atmospheric mixing condenser further comprises a plurality of water spraying plates 3 , which are arranged at equal intervals along the length direction of the central tube 2 and surround the outside of the tube wall of the central tube 2 .

[0032] The water spraying plate 3 of each layer is formed with a plurality of water spraying holes.

[0033] The plurality of water sprinkling holes are distributed along the circumference of the water sprinkling plate in the form of concentric circles.

[0034] The tank body 1 includes an upper cone 11, a lower cone 12 and a cylinder 13. The upper cone 11 and the lower cone 12 are mirror-imaged at the upper and lower ends of the cylinder 13. The top of the upper cone 11 is open, and the center tube 2 is arranged in the opening. A steam inlet 22 is formed at the top of the center tube 2, a cooling water outlet 121 is formed at the bottom of the lower cone 12, and a cooling water inlet 131 is formed on one side of the upper part of the cylinder 13.

[0035] The atmospheric mixing condenser further comprises a rubber shock absorber, which is installed at the cooling water outlet 121. The provision of the shock absorber further reduces the vibration of the equipment.

[0036] The working principle of the atmospheric mixing condenser provided by the utility model is:

[0037] Steam enters the central tube 2 from the steam inlet 22, flows downward to the steam outlet 21 at the lower part of the central tube 2, and is discharged from the inside of the central tube 2 to the inside of the tank body 1 through multiple steam outlets 21. At the same time, cooling water enters the inside of the tank body 1 from the cooling water inlet 131, and is dispersed to the surroundings through the water spray plate 3 and the baffle plate 4, fully contacting and exchanging heat with the steam. The steam is condensed to form cooling water and is discharged from the cooling water outlet 121. The setting of the support plate 5 increases the strength of the tank body 1.

[0038] In summary, the atmospheric mixing condenser provided by the utility model can change the steam flow direction from forward flow to lateral flow, and the steam and cooling water contact from parallel flow to countercurrent contact, which is beneficial to the direct and sufficient heat exchange between steam and cooling water; at the same time, the steam-water contact time is prolonged, and the steam condensation degree is better (originally, about 80% of the secondary steam was condensed into water, and about 20% of the secondary steam flowed down with the cooling water, the pressure increased, and the steam-water impact was severe; after the flow was redirected, about 95% or more of the secondary steam can be condensed, and the steam-water impact is reduced), the amount of uncondensed steam is reduced, and thus the steam-water impact degree is reduced, achieving the effect of reducing the noise and alleviating the vibration.

[0039] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An atmospheric mixing condenser, characterized in that: include: Tank; A central tube is inserted from the top of the tank body into the interior of the tank body along the central axis of the tank body, the bottom of the central tube is closed, and a plurality of steam outlets are formed at the lower part of the central tube along the circumference of the central tube, and the steam outlets connect the space inside the central tube with the space inside the tank body.

2. The atmospheric mixing condenser according to claim 1, characterized in that: The tank body includes an upper cone, a lower cone and a cylinder, wherein the upper cone and the lower cone are respectively arranged at the upper and lower ends of the cylinder, the top of the upper cone is open, the center tube is arranged in the opening, a steam inlet is formed at the top of the center tube, a cooling water outlet is formed at the bottom of the lower cone, and a cooling water inlet is formed on one side of the upper part of the cylinder.

3. The atmospheric mixing condenser according to claim 2, characterized in that: It also includes a rubber shock absorber, which is installed at the cooling water outlet.

4. The atmospheric mixing condenser according to claim 1, characterized in that: The sum of the areas of the plurality of steam outlets is three times the cross-sectional area of ​​the central tube.

5. The atmospheric mixing condenser according to claim 4, characterized in that: The plurality of steam outlets are opened on the tube wall of the central tube in two layers, upper and lower layers, and the steam outlets in each layer are evenly arranged.

6. The atmospheric mixing condenser according to claim 1, characterized in that: It also includes multiple layers of baffles and water spraying plates, which surround the outside of the wall of the central tube.

7. The atmospheric mixing condenser according to claim 6, characterized in that: Each layer of the water spraying plate is formed with a plurality of water spraying holes.

8. The atmospheric mixing condenser according to claim 7, characterized in that: The plurality of water sprinkling holes are distributed along the circumference of the water sprinkling plate in the form of concentric circles.

9. The atmospheric mixing condenser according to claim 8, characterized in that: It also includes a plurality of support plates, which surround the outside of the wall of the central pipe and are used to fix the central pipe.

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