Evaporation device for sewage purification
By using spiral tube preheating and steam recycling, combined with the design of flow-blocking rings and speed-reducing screws, the problem of heat loss in wastewater evaporation treatment is solved, achieving energy saving and improved treatment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-04-03
AI Technical Summary
In existing wastewater evaporation treatment processes, heat energy is lost in the form of steam, resulting in serious energy waste and increased treatment costs.
The wastewater in the preheating tank is heated by a spiral tube, and steam is recycled to preheat the wastewater. The flow-blocking ring and the speed-reducing screw design reduce the flow velocity of the wastewater, thereby improving thermal efficiency and treatment effect.
This technology enables the recycling of steam, saves energy, improves equipment thermal efficiency, reduces operating costs, and enhances wastewater treatment quality.
Smart Images

Figure CN224077094U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wastewater treatment technology, and in particular relates to an evaporation device for wastewater purification. Background Technology
[0002] With the rapid development of industry and the fast pace of urbanization, the generation and discharge of wastewater are showing a continuous upward trend. The direct discharge of this untreated wastewater into the environment poses a serious threat to ecosystems and human health. Therefore, developing efficient, energy-saving, and environmentally friendly wastewater treatment technologies has become a crucial issue that urgently needs to be addressed.
[0003] In existing wastewater treatment technologies, evaporation is a common method for concentrating wastewater. This method involves heating the wastewater to evaporate the water, thereby concentrating the wastewater. However, common wastewater evaporation processes often fail to achieve efficient heat utilization. During evaporation, a large amount of heat energy is lost into the air as steam, leading to significant energy waste and increased treatment costs. Utility Model Content
[0004] The purpose of this invention is to provide an evaporation device for wastewater purification in order to solve the problem that heat energy is lost in the form of steam during the common wastewater evaporation process, resulting in serious energy waste.
[0005] This utility model achieves the above-mentioned objectives through the following technical solution: it includes an outer frame, a preheating water tank is installed on the top of the outer frame, an evaporator is provided through the inner side of the preheating water tank, the evaporator is connected to the preheating water tank by screws, an evaporation mechanism is provided inside the evaporator, a steam reflux mechanism is provided on one side of the preheating water tank, a water inlet is fixedly provided on the other side of the preheating water tank, a water pump is provided on the top of the evaporator and connected by screws, and a water outlet is fixedly provided at the bottom of the evaporator.
[0006] Furthermore, the evaporation mechanism includes a distribution tank, a plurality of evaporation tubes at the bottom of the distribution tank, and a collection tank at the bottom of the evaporation tubes. The distribution tank and the collection tank are both connected to the evaporation tank by screws. The evaporation tubes are connected to the distribution tank and the collection tank through the tank and fastened by threads. The collection tank is connected to the water outlet. The distribution tank is connected to the output end of the water pump through a pipe.
[0007] Furthermore, several flow-blocking rings are fixedly arranged at equal intervals on the inner wall of the evaporator tube, and a speed-reducing screw is provided on the inner side of the evaporator tube. The speed-reducing screw is connected to the evaporator tube through a connector.
[0008] Furthermore, the steam reflux mechanism includes a square pipe, the bottom of which is connected to the evaporator via a pipe, and a fan is provided on the upper side of the square pipe and connected through it.
[0009] Furthermore, a spiral tube is provided inside the preheating water tank and connected by a bracket. One end of the spiral tube passes through the preheating water tank and is connected to the square pipe through a pipeline. The other end of the spiral tube is connected to the evaporator through a pipeline.
[0010] Furthermore, the water pump input is connected to the preheated water tank via a pipeline.
[0011] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:
[0012] 1. In this utility model, a spiral tube containing steam is used to preheat the wastewater in the preheating tank. This design can quickly raise the temperature of the wastewater, providing favorable conditions for subsequent evaporation treatment. The steam in the evaporation tube enters the square pipe through the pipeline and is blown by the fan to the spiral tube to preheat the wastewater in the preheating tank. This steam recycling method not only saves energy but also improves the overall thermal efficiency of the equipment and reduces operating costs.
[0013] 2. In this utility model, through the design of the flow-blocking ring and the speed-reducing screw, the device can significantly reduce the sliding speed of sewage on the inner wall of the evaporation tube, while also playing the role of guiding the flow and reducing the flow rate, thus extending the treatment time of sewage in the evaporation tube and helping to improve the evaporation effect and the treatment quality of sewage. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a partial structural cross-sectional view of the present invention;
[0016] Figure 3 This is a cross-sectional view of the evaporation mechanism of this utility model;
[0017] Figure 4 This is a schematic diagram of part A of the present utility model.
[0018] In the diagram: 1-Outer frame, 2-Preheating water tank, 3-Evaporator, 4-Evaporation mechanism, 5-Steam reflux mechanism, 6-Inlet, 7-Water pump, 8-Outlet, 9-Spiral tube;
[0019] 41-Diverter tank, 42-Evaporator tube, 43-Collection tank, 44-Baffle ring, 45-Speed-reducing screw, 51-Square pipe, 52-Fan. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Combination Figures 1 to 4 An evaporation device for wastewater purification is shown, comprising an outer frame 1, a preheating water tank 2 mounted on the top of the outer frame 1, an evaporation tank 3 extending through the inner side of the preheating water tank 2, the evaporation tank 3 being connected to the preheating water tank 2 by screws, an evaporation mechanism 4 inside the evaporation tank 3, a steam reflux mechanism 5 on one side of the preheating water tank 2, a water inlet 6 fixedly mounted on the other side of the preheating water tank 2, a water pump 7 mounted on the top of the evaporation tank 3 and connected by screws, and a water outlet 8 fixedly mounted at the bottom of the evaporation tank 3.
[0022] The evaporation mechanism 4 includes a distribution tank 41, with several evaporation tubes 42 at the bottom of the distribution tank 41 and a collection tank 43 at the bottom of the evaporation tubes 42. The distribution tank 41 and the collection tank 43 are connected to the evaporation chamber 3 by screws. The evaporation tubes 42 are connected to the distribution tank 41 and the collection tank 43 by threads. The collection tank 43 is connected to the outlet 8. The distribution tank 41 is connected to the output end of the water pump 7 by a pipe. The distribution tank 41 diverts the sewage delivered by the water pump 7 to the evaporation tubes 42. After evaporation, the sewage is collected in the collection tank 43 and discharged from the evaporation chamber 3 through the outlet 8. The amount of sewage sent into the evaporation tubes 42 is regulated by the distribution tank 41 through a throttle valve.
[0023] Several flow-blocking rings 44 are fixedly arranged at equal intervals on the inner wall of the evaporation tube 42. A speed-reducing screw 45 is provided on the inner side of the evaporation tube 42. The speed-reducing screw 45 is connected to the evaporation tube 42 through a connector. The flow-blocking rings 44 can reduce the sliding speed of sewage on the tube wall. The speed-reducing screw 45 can guide the sewage in the evaporation tube 42 and reduce the flow rate, thereby extending the treatment time of sewage in the evaporation tube 42 and improving the treatment effect.
[0024] The steam reflux mechanism 5 includes a square pipe 51. The bottom of the square pipe 51 is connected to the evaporator 3 through a pipe. A fan 52 is provided on the upper side of the square pipe 51 and is connected through it. The steam in the evaporator 42 enters the square pipe 51 through the pipe. The fan 52 blows the steam in the square pipe 51 to the spiral tube 9 to create a negative pressure in the pipe and continuously extracts steam from a distance.
[0025] The preheating water tank 2 is equipped with a spiral tube 9 inside and connected by a bracket. One end of the spiral tube 9 passes through the preheating water tank 2 and is connected to the square pipe 51 through a pipeline. The other end of the spiral tube 9 is connected to the evaporator 3 through a pipeline. After the steam enters the spiral tube 9, it preheats the sewage in the preheating water tank 2, which helps to reduce energy consumption and heating time.
[0026] The input end of the water pump 7 is connected to the preheating water tank 2 through a pipeline. The preheated wastewater is sent by the water pump 7 into the evaporation tank 3 for evaporation treatment.
[0027] Working principle: In use, wastewater is sent into the preheating tank 2 through the inlet 6. The spiral tube 9 containing steam preheats the wastewater in the preheating tank 2. The preheated wastewater is sent into the evaporation tank 3 by the water pump 7. The diversion tank 41 diverts the wastewater from the water pump 7 into the evaporation tube 42 for evaporation. The flow-blocking ring 44 reduces the sliding speed of wastewater on the tube wall. The speed-reducing screw 45 guides and reduces the flow rate of wastewater in the evaporation tube 42, extending the treatment time of wastewater in the evaporation tube 42 and improving the treatment effect. After evaporation, the wastewater is collected in the liquid collection tank 43 and discharged from the evaporation tank 3 through the outlet 8. The steam in the evaporation tube 42 enters the square pipe 51 through the pipeline. The fan 52 blows the steam in the square pipe 51 to the spiral tube 9 to preheat the wastewater in the preheating tank 2.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An evaporation device for purification of sewage water, comprising an outer frame (1), characterized in that: The upper frame (1) is provided with a preheating water tank (2), the inside of the preheating water tank (2) is provided with an evaporation tank (3), the evaporation tank (3) is connected with the preheating water tank (2) by screws, the inside of the evaporation tank (3) is provided with an evaporation mechanism (4), one side of the preheating water tank (2) is provided with a steam backflow mechanism (5), the other side of the preheating water tank (2) is fixedly provided with a water inlet (6), the top of the evaporation tank (3) is provided with a water pump (7) and is connected by screws, and the bottom of the evaporation tank (3) is fixedly provided with a water outlet (8).
2. An evaporation apparatus for purification of sewage water according to claim 1, characterized in that: The evaporation mechanism (4) comprises a shunt water tank (41), the bottom of the shunt water tank (41) is provided with a plurality of evaporation pipes (42), the bottom of the evaporation pipe (42) is provided with a liquid collecting tank (43), the shunt water tank (41) and the liquid collecting tank (43) are connected with the evaporation tank (3) by screws, the evaporation pipe (42) is connected with the shunt water tank (41) and the liquid collecting tank (43) and is fastened by threads, the liquid collecting tank (43) is connected with the water outlet (8), and the shunt water tank (41) is connected with the output end of the water pump (7) by a pipeline.
3. An evaporation apparatus for purification of sewage water according to claim 2, characterized in that: A plurality of flow resistance rings (44) are fixedly arranged on the inner wall of the evaporation pipe (42) at equal intervals, the inside of the evaporation pipe (42) is provided with a speed reduction screw (45), and the speed reduction screw (45) is connected with the evaporation pipe (42) through a connecting piece.
4. An evaporation apparatus for purification of sewage water according to claim 3, characterized in that: The steam backflow mechanism (5) comprises a square pipeline (51), the bottom of the square pipeline (51) is connected with the evaporation tank (3) through a pipeline, and the upper side of the square pipeline (51) is provided with a fan (52) and is connected.
5. An evaporation apparatus for purification of sewage water according to claim 4, characterized in that: The inside of the preheating water tank (2) is provided with a spiral pipe (9) and is connected through a support, one end of the spiral pipe (9) penetrates the preheating water tank (2) and is connected with the square pipeline (51) through a pipeline, and the other end of the spiral pipe (9) is connected with the evaporation tank (3) through a pipeline.
6. An evaporation apparatus for purification of sewage water according to claim 5, characterized in that: The input end of the water pump (7) is connected with the preheating water tank (2) through a pipeline.