Steam purification tower
By designing a steam purification tower with a double-layer demisting mesh module in the MVR evaporation crystallization system, the problem of wastewater entrainment of droplets and suspended solids was solved, achieving efficient steam purification and latent heat recovery, and improving the system's thermal efficiency and equipment stability.
Patent Information
- Application Number
- CN202423253233.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-28
AI Technical Summary
In existing MVR evaporation crystallization systems, wastewater carries droplets and suspended solids during the evaporation process, causing compressor vibration and corrosion, affecting equipment stability and thermal efficiency, and failing to effectively utilize the latent heat of waste steam.
Design a simple steam purification tower that uses a double-layer demister module. The demister plate's deflected protrusions come into contact with the airflow, intercepting impurities and causing them to fall into the liquid level zone. Combined with a buffer layer and a discharge pump, the impurities are diverted and purified.
Effective filtration and purification of steam improves thermal efficiency, ensures stable equipment operation, and recovers the latent heat of waste steam, thereby enhancing the overall thermal efficiency of the system.
Smart Images
Figure CN223732343U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of purification equipment, and particularly relates to a steam purification tower. BACKGROUND
[0002] The MVR evaporation crystallization system is a technology using the energy of secondary steam generated by itself as a heating source, thereby reducing the demand for external energy. When the MVR evaporation crystallization system is working, the secondary steam is compressed by a steam compressor, the pressure and temperature are increased, and the heat content is increased. The secondary steam is sent to a heater of an MVR evaporator as heating steam, i.e. live steam. The material liquid after being heated is sent to a separator to maintain the evaporation state of the material liquid. The secondary steam after being compressed by the compressor is used to heat the material liquid which is then sent to the separator to flash evaporate. After the heat exchange between the secondary steam and the material liquid, the secondary steam is condensed to form water. The originally discarded steam is fully utilized, the latent heat is recovered, and the thermal efficiency is improved. The working process is that the low-temperature steam is compressed by the compressor, the temperature and pressure are increased, and the heat content is increased. Then the steam is condensed in the heater to fully utilize the latent heat of the steam. Since the wastewater treated by various industries has complex components, small molecules and suspended solids cannot be effectively separated and filtered in the evaporation process, and are easily entrained in the steam. Since the compressor is in high-speed operation, the steam compressor is easily vibrated, which causes unstable operation of the equipment. If a two-layer filter screen is designed at the top of the separator, the flash evaporation separation height and the evaporation effect will be affected, which is not conducive to the stable operation of the equipment. In addition, liquid droplets and liquid splashes are easily entrained in the secondary steam in the evaporation process, which affects the impeller of the high-speed compressor and even corrodes the impeller of the compressor. If a steam purification tower with a simple structure, which can realize filtration and separation of steam and impurities, fully utilize the discarded steam to recover the latent heat, and improve the overall thermal efficiency of the purification system, the above problems can be solved. CONTENT OF THE UTILITY MODEL
[0003] The utility model solves the technical problem of overcoming the prior art, and provides a steam purification tower which has a simple structure, can realize filtration and separation of steam and impurities, can fully utilize discarded steam to recover latent heat, and can improve the overall thermal efficiency of a purification system.
[0004] The utility model adopts the technical scheme that the utility model discloses a steam purification tower which comprises an equipment fixing frame and a steam purification tower.
[0005] Further, the demisting net module comprises a plurality of demisting plates and a plurality of connecting plates, and the plurality of demisting plates are connected through the plurality of connecting plates.
[0006] Further, the demisting plate is provided with a first deflection protrusion and a second deflection protrusion in the middle, the first deflection protrusion and the second deflection protrusion are opposite in protrusion direction, and the first deflection protrusion and the second deflection protrusion are matched with the first deflection protrusion and the second deflection protrusion of the adjacent demisting plate respectively.
[0007] Further, the end of the plurality of demisting plates is connected with the inner wall of the purification tower body through a plurality of L-shaped clamping bases and a plurality of fixing bolts.
[0008] Further, the purification tower body is connected with the output end of the external evaporator through the steam inlet pipeline, and the steam of the output end of the external evaporator is matched with the demisting net module at the upper end through the steam inlet pipeline.
[0009] Further, the upper end of the purification tower body is connected with the input end of the external steam compressor through the steam outlet pipeline.
[0010] Further, the lower end of the equipment fixing frame is provided with a discharge pump, and the lower end of the purification tower body is connected with the discharge pump through the liquid outlet pipeline.
[0011] Further, a buffer layer is arranged between the purification tower body and the tower saddle.
[0012] The beneficial effects of the utility model are that when the steam inlet pipeline inputs steam, the heavier liquid will flow into the liquid level area at the lower end of the purification tower body, the demisting plate deflected at multiple positions can be fully contacted with the rising airflow, and can hang the impurities or waste water entrained in the steam on the wall and fall on the adjacent demisting plate to realize multi-stage blocking and finally fall into the liquid level area at the lower end of the purification tower body, and the structure is simple, the double demisting net modules can be set according to the system operation condition, the applicability is strong, and the secondary steam can be effectively purified and utilized. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structural schematic view of the utility model;
[0014] Figure 2 is Figure 1 is an enlarged view of A in the middle;
[0015] Figure 3 is a top view of the demisting net module;
[0016] Figure 4 is a perspective view of the demisting plate. DETAILED DESCRIPTION
[0017] As Figures 1 to 4 shown in the embodiment, the utility model includes equipment fixed frame 1 and steam purification tower 2, steam purification tower 2 includes purification tower main body 3 and demisting net module 4, the outside of the middle part of purification tower main body 3, upper end and lower end are provided with steam inlet pipeline 5 and steam outlet pipeline 6 and liquid outlet pipeline 7, demisting net module 4 is set up in the inside upper end of purification tower main body 3, the lower end of purification tower main body 3 is connected with equipment fixed frame 1 through tower saddle 8. It can be seen that the demisting net module 4 is arranged between the steam inlet pipeline 5 and the steam outlet pipeline 6, the height of the purification tower main body 3 is about 3-3.8 meters, the diameter is 0.8-1.8 meters, the demisting net module 4 is designed in double layers inside the purification tower main body 3, the distance from the top of the tower is about 60-80CM, which is designed in two layers, the purification tower main body 3 has 6-8MM rock wool insulation, the steam inlet pipeline 5 is arranged below 1 / 3 of the purification tower main body 3, and there is a space height of about 2 meters between the double-layer demisting net module 4, the superposition of the demisting net module 4 can be carried out according to the cost of waste water, which can more effectively carry out filtering operation, and the structure is simple and the purification effect is better.
[0018] As Figures 1 to 4 shown in the embodiment, the demisting net module 4 includes a plurality of demisting plates 9 and a plurality of connecting plates 10, and the plurality of demisting plates 9 are connected by the plurality of connecting plates 10. It can be seen that the steam rises between the plurality of demisting plates 9, which can effectively contact the demisting plates 9 and effectively filter the steam.
[0019] As Figure 4 shown in the embodiment, the demisting plate 9 is provided with a first deflection protrusion 91 and a second deflection protrusion 92 in the middle, the first deflection protrusion 91 and the second deflection protrusion 92 are opposite in protrusion direction, and the first deflection protrusion 91 and the second deflection protrusion 92 are matched with the first deflection protrusion 91 and the second deflection protrusion 92 of the adjacent demisting plate 9 respectively. It can be seen that the demisting plate 9 with multiple deflection can fully contact with the rising airflow, and can hang the impurities or waste water carried in the steam on the wall, and directly flow down or fall into the adjacent demisting plate 9 with the increase of weight to realize multi-stage blocking and finally fall into the liquid level area at the lower end of the purification tower main body 3 to realize efficient filtering and purification.
[0020] As Figure 2 and Figure 3 shown in the embodiment, the end of the plurality of demisting plates 9 is connected with the inner wall of the purification tower main body 3 through the plurality of L-shaped clamping seats 11 and the plurality of fixing bolts 12. It can be seen that the plurality of L-shaped clamping seats 11 and the plurality of fixing bolts 12 can fix the demisting net module 4 as a whole in the inside of the purification tower main body 3.
[0021] As Figure 1 shown in the embodiment, the purification tower body 3 is connected with the external evaporator output end through the steam inlet pipe 5, and the steam of the external evaporator output end is matched with the demisting net module 4 at the upper end through the steam inlet pipe 5. As can be seen, the steam inlet pipe 5 is arranged on the purification tower body 3, which can effectively separate the steam flowing from the external evaporator into gas and liquid, and preliminarily filter the waste water and impurities into the liquid level area at the lower end of the purification tower body 3, and the steam to be purified flows into the steam outlet pipe 6 upward.
[0022] As Figure 1 shown in the embodiment, the upper end of the purification tower body 3 is connected with the external steam compressor input end through the steam outlet pipe 6. As can be seen, the steam outlet pipe 6 is used for recycling the purified steam and flowing into the external steam compressor.
[0023] As Figure 1 shown in the embodiment, the lower end of the equipment fixing frame 1 is provided with a discharge pump 13, and the lower end of the purification tower body 3 is connected with the discharge pump 13 through the liquid outlet pipe 7. As can be seen, the discharge pump 13 synchronously discharges the impurities and the condensed water.
[0024] As Figure 1 shown in the embodiment, a buffer layer 14 is arranged between the purification tower body 3 and the tower saddle 8. As can be seen, the buffer layer 14 provides a buffering and stabilizing effect for the purification tower body 3.
[0025] The working principle of the utility model is: in the running process of the MVR evaporation crystallization system, the secondary steam generated in the evaporation process of the evaporator is discharged through the filter screen of the separator at the top output end, and flows into the inside of the purification tower body 3 through the steam inlet pipe 5, and the secondary steam stays in the tower for 2-3 seconds for preliminary purification when entering the purification tower body 3, and the secondary steam flows into the top of the purification tower body 3 through the double-layer demisting net module 4, and the demisting net module 4 intercepts the liquid droplets possibly entrained in the secondary steam, so that secondary purification is realized. The purified secondary steam flows into the external steam compressor input end through the steam outlet pipe 6, provides a heating heat source for the MVR evaporation crystallization system, makes the whole system recycle and work, realizes full utilization of the waste steam, recovers the latent heat, and improves the thermal efficiency.
[0026] Although the embodiments of the utility model are described in actual schemes, but does not constitute the limitation to the meaning of the utility model, for the person skilled in the art, according to the modification of the embodiments and the combination with other schemes in the specification, it is obvious.
Claims
1. A steam purification column comprising a device holder (1) and a steam purification column (2), characterized in that: The steam purification tower (2) comprises a purification tower body (3) and a demisting net module (4), the outer side, upper end and lower end of the middle part of the purification tower body (3) are respectively provided with a steam inlet pipeline (5) and a steam outlet pipeline (6) and a liquid outlet pipeline (7), the demisting net module (4) is arranged at the upper end inside the purification tower body (3), and the lower end of the purification tower body (3) is connected with the equipment fixing frame (1) through a tower saddle (8).
2. A steam purification column according to claim 1, characterized in that: The demisting net module (4) comprises a plurality of demisting plates (9) and a plurality of connecting plates (10), and the plurality of demisting plates (9) are connected through the plurality of connecting plates (10).
3. A steam purification column according to claim 2, characterized in that: The demisting plate (9) is provided with a first deflection protrusion (91) and a second deflection protrusion (92) in the middle part, the first deflection protrusion (91) and the second deflection protrusion (92) are opposite in protrusion direction, and the first deflection protrusion (91) and the second deflection protrusion (92) are respectively matched with the first deflection protrusion (91) and the second deflection protrusion (92) of the adjacent demisting plate (9).
4. A steam purification column according to claim 2, characterized in that: The end of the demisting plate (9) is connected with the inner wall of the purification tower body (3) through a plurality of L-shaped clamping bases (11) and a plurality of fixing bolts (12).
5. A steam purification column according to claim 2, characterized in that: The purification tower body (3) is connected with the output end of an external evaporator through the steam inlet pipeline (5), and the steam of the output end of the external evaporator is matched with the demisting net module (4) at the upper end through the steam inlet pipeline (5).
6. A steam purification column according to claim 2, characterized in that: The upper end of the purification tower body (3) is connected with the input end of an external steam compressor through the steam outlet pipeline (6).
7. A steam purification column according to claim 1, characterized in that: The lower end of the equipment fixing frame (1) is provided with a discharge pump (13), and the lower end of the purification tower body (3) is connected with the discharge pump (13) through the liquid outlet pipeline (7).
8. A steam purification column according to claim 1, characterized in that: A buffer layer (14) is arranged between the purification tower body (3) and the tower saddle (8).