Simulated sunlight circulation evaporation device

Abstract

The invention discloses a simulated sunlight circulation evaporation device. Comprising a sunlight evaporation device, a water distribution pipe is arranged on the evaporation device, a raw water pool is arranged below the evaporation device, and the evaporation device is communicated with the raw water pool through a pipeline; a water pump is arranged in the raw water tank, and a water outlet of the water pump is communicated with the water distribution pipe. According to the invention, the simulated sunlight lamp tube is used as an energy source, so that the natural environment restriction is avoided, all-weather, stable and continuous evaporation operation can be realized, and the treatment efficiency and reliability are greatly improved. Evaporation, condensation, air blowing and water circulation are organically integrated, closed circulation is formed, internal circulation of materials and coupling optimization of energy are achieved, the system is compact, the automation degree is high, and the operation cost is low.

Description

A simulated solar radiation cycle evaporation device Technical Field

[0001] This invention belongs to the field of water treatment and is used for the evaporation of concentrated brine, specifically relating to a simulated solar circulation evaporation device. Background Technology

[0002] With rapid industrialization, the discharge of high-salinity wastewater (concentrated brine) is increasing dramatically. Originating from various industries such as chemical, power, pharmaceutical, and seawater desalination, this wastewater is complex in composition and difficult to treat, posing a serious threat to the ecological environment if not properly disposed of. Currently, treatment technologies for concentrated brine are mainly divided into two categories: thermal methods and membrane methods. Thermal methods, such as multi-effect evaporation (MED) and mechanical vapor recompression (MVR), offer stable treatment results, but suffer from high equipment investment, extremely high energy consumption, and susceptibility to scaling and corrosion, leading to high operating costs. Membrane methods, such as reverse osmosis (RO), have stringent requirements for feed water quality and face challenges such as severe membrane fouling and difficulties in treating concentrated wastewater, resulting in significant limitations in their application.

[0003] In recent years, solar interfacial evaporation technology has shown great potential as an emerging green treatment method. It utilizes photothermal materials to convert solar energy into heat energy at the liquid interface, achieving localized heating and efficient evaporation, theoretically possessing advantages such as low energy consumption and environmental friendliness. However, in the process of moving from the laboratory to practical application, this technology has exposed a series of key technical bottlenecks. First, its core driving force—solar energy—is intermittent and unstable, significantly affected by diurnal, weather, and seasonal changes, resulting in an uncontrollable and continuous evaporation process, severely restricting treatment efficiency and stability. Second, most existing devices lack effective water vapor management mechanisms; the water vapor generated during evaporation accumulates within the device, causing localized humidity saturation and significantly inhibiting the evaporation rate. Furthermore, traditional devices often focus on reducing evaporation volume while neglecting the recovery of latent heat of evaporation and water reuse, failing to condense water vapor into reusable freshwater, resulting in resource waste. In addition, the fixation of evaporation materials, the uniformity of water distribution, and the long-term operational stability of the system are also problems that urgently need to be solved in practical engineering applications. Therefore, developing an integrated evaporation device that can overcome the limitations of natural light and achieve efficient water-heat circulation and resource recovery is of great significance for promoting energy conservation, continuous operation, and resource utilization in the treatment of high-salt wastewater. Summary of the Invention

[0004] To overcome the above-mentioned defects, the purpose of this invention is to provide a simulated solar cycle evaporation device. This device can simulate stable sunlight and achieve efficient continuous evaporation of concentrated brine, forced discharge of water vapor and freshwater recovery by integrating water circulation, blowing and condensation systems. It effectively solves the problems of unstable natural solar evaporation, high energy consumption of traditional thermal methods and low resource recovery rate.

[0005] To achieve the above objectives, the present invention provides a simulated solar circulation evaporation device, comprising a solar evaporation device, a water distribution pipe provided on the evaporation device, a raw water tank provided below the evaporation device, and the evaporation device being connected to the raw water tank via a pipe; a water pump is provided in the raw water tank, and the outlet of the water pump is connected to the water distribution pipe.

[0006] Furthermore, the solar evaporation device includes a cylindrical reactor with a simulated light source at the center of the reactor; evaporation material is disposed on the side wall of the reactor corresponding to the simulated light source; and a water distribution device is disposed on the reactor corresponding to the evaporation material.

[0007] Furthermore, an evaporation material limiting cage is also provided inside the reactor corresponding to the evaporation material.

[0008] Furthermore, a light-absorbing layer is provided on the side of the evaporation material facing the simulated light source in the reactor; or the surface of the evaporation material is integrally composited with a light-absorbing layer.

[0009] Furthermore, the water distribution device includes a water distribution plate disposed on the reactor, and a plurality of water distribution holes are provided on the water distribution plate corresponding to the evaporation material.

[0010] Furthermore, the water distribution plate is ring-shaped, and the simulated light source is suspended inside the reactor through the middle of the water distribution plate; a vent is formed in the middle of the water distribution plate.

[0011] Furthermore, a water distribution baffle is formed by the upward protrusion of the vent on the water distribution plate.

[0012] Furthermore, the reactor is provided with an annular bottom plate; the center of the bottom plate is a vent, and the vent of the bottom plate is provided with an upward protrusion to form a water storage baffle.

[0013] Furthermore, a fan is installed at the ventilation opening of the base plate.

[0014] Furthermore, it also includes a heat exchange condenser, which includes an air inlet, an air outlet, a water inlet, and a water outlet. The air inlet of the heat exchange condenser is connected to the ventilation opening of the water distribution plate; the water inlet of the heat exchange condenser is connected to the water outlet of the water pump; and the water outlet of the heat exchange condenser is connected to the water distribution pipe.

[0015] The beneficial effects of this invention are: efficient, stable and continuous evaporation: by using simulated sunlight tubes as energy, it is free from the constraints of the natural environment and can achieve all-weather, stable and continuous evaporation operation, which greatly improves processing efficiency and reliability.

[0016] Resource recycling and energy conservation: Water vapor is converted into reusable fresh water through a condensation system, realizing water resource recycling; at the same time, the latent heat of water vapor is used to preheat the influent to be treated, which significantly reduces the net energy consumption of the system and reflects the principle of energy cascade utilization.

[0017] Enhanced mass transfer and prevention of saturation: Forced airflow through the bottom fan not only effectively removes water vapor, preventing its accumulation in the reactor and thus inhibiting evaporation, but also enhances the disturbance at the gas-liquid interface, further promoting the evaporation process.

[0018] System integration and recycling: Evaporation, condensation, blowing and water circulation are organically integrated to form a closed loop, realizing the internal circulation of materials and the coupling optimization of energy. The system is compact, highly automated and has low operating costs.

[0019] Easy maintenance and high adaptability: The design of the evaporation material limiting cage makes the installation and replacement of soft evaporation materials extremely convenient, reducing maintenance difficulty and cost. This device is suitable for the deep treatment and volume reduction of various high-salinity wastewaters and has broad application prospects. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the structure of a simulated solar cycle evaporation device according to the present invention.

[0021] Figure 2 is a three-dimensional schematic diagram of the device.

[0022] Wherein: 11—reactor; 21—water distribution plate; 22—water distribution hole; 31—bottom plate; 32—bottom plate baffle; 33—fan; 34—drain pipe; 41—evaporation material limiting cage; 42—evaporation material area; 51—lamp tube; 61—raw water tank; 62—inlet water pipe; 63—water pump; 64—heat exchanger inlet pipe; 65—heat exchanger condenser; 66—heat exchanger exhaust and condensate outlet pipe. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] As shown in Figures 1 and 2, reactor 11 is a cylinder with a central evaporation zone as its core area. It has a water distribution plate at the top and a drainage bottom plate at the bottom, and is equipped with a water circulation, blower, and steam condensation system.

[0028] The reactor is equipped with a water distribution plate 21 at the top, with several water distribution holes 22 near the edge, and a lamp tube (xenon lamp tube can be used) 51 inserted in the center without leaving any gaps.

[0029] The reactor has a bottom plate 31. A fan 33 is installed at the center to blow out water vapor. An opening in the bottom plate near the fan serves as an air inlet. To prevent water from flowing into the air inlet at the fan, the bottom plate is raised to form a water storage baffle 32. Excess water flows into the raw water tank 61 through a drain pipe 34.

[0030] In the evaporation zone, solar evaporation material is placed close to the inner wall of the reactor. Since most evaporation materials are relatively soft and not rigid, they cannot support themselves against the inner wall, and since frequent replacement is often necessary, fixing them to the inner wall is not advisable. Therefore, an evaporation material limiting cage 41 is designed to confine the evaporation material between the cage and the inner wall, forming the evaporation material zone 42. The evaporation material should ideally be a hydrophilic porous material. To facilitate effective light absorption, a light-absorbing material layer, such as black mesh or a black transparent or semi-transparent plastic sheet, can be placed on the side facing the lamp tube. Alternatively, an integrated material (such as graphite felt) can be used.

[0031] The reactor is equipped with a water circulation, blower, and steam condensation system. Water that has not yet evaporated flows back to the raw water tank, then through the inlet pipe 62, water pump 63, and heat exchange condenser 65, connecting to the water distribution hole 22, where it is sprayed again onto the evaporation material for heating. A fan blows out water vapor, which is discharged through the heat exchanger inlet pipe 64, heat exchange condenser 65, exhaust pipe, and condensate outlet pipe 66. The incoming water and water vapor exchange heat in the condenser tubes; on the one hand, the incoming water is heated, which is more conducive to evaporation; on the other hand, the water vapor is condensed and discharged, yielding purified water.

[0032] An air inlet is located around the fan, and an exhaust port is opened on the water distribution plate. Apart from this, the rest of the reactor is kept as airtight as possible to facilitate the collection of water vapor.

[0033] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described above. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Many other changes and modifications made without departing from the concept and scope of the present invention should be considered within the scope of protection of the present invention.

[0034] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for simulating solar radiation circulation evaporation, characterized in that, The device includes a solar evaporation unit, a water distribution pipe on the evaporation unit, and a raw water tank below the evaporation unit. The evaporation unit is connected to the raw water tank via a pipe. A water pump is installed in the raw water tank, and the outlet of the water pump is connected to the water distribution pipe.

2. The simulated solar cycle evaporation device as described in claim 1, characterized in that, The solar evaporation device includes a cylindrical reactor with a simulated light source at the center of the reactor; evaporation material is arranged on the side wall of the reactor corresponding to the simulated light source; and a water distribution device is arranged on the reactor corresponding to the evaporation material.

3. The simulated solar cycle evaporation device as described in claim 2, characterized in that, An evaporation material limiting cage is also provided in the reactor corresponding to the evaporation material.

4. The simulated solar cycle evaporation device as described in claim 2, characterized in that, The evaporation material in the reactor has a light-absorbing layer on the side facing the simulated light source; or the surface of the evaporation material is integrally coated with a light-absorbing layer.

5. The simulated solar cycle evaporation device as described in claim 4, characterized in that, The water distribution device includes a water distribution plate installed on the reactor, and a plurality of water distribution holes are provided on the water distribution plate corresponding to the evaporation material.

6. The simulated solar cycle evaporation device as described in claim 5, characterized in that, The water distribution plate is ring-shaped, and the simulated light source is suspended inside the reactor through the middle of the water distribution plate; a vent is formed in the middle of the water distribution plate.

7. The simulated solar cycle evaporation device as described in claim 6, characterized in that, The ventilation openings on the water distribution plate are convex upwards to form a water distribution baffle.

8. The simulated solar cycle evaporation device as described in claim 5, characterized in that, The reactor is provided with an annular bottom plate; the center of the bottom plate is a vent, and the vent is surrounded by an upward-protruding water storage baffle.

9. The simulated solar cycle evaporation device as described in claim 8, characterized in that, A fan is installed at the ventilation opening of the base plate.

10. The simulated solar cycle evaporation device as described in claim 9, characterized in that, It also includes a heat exchange condenser, which includes an air inlet, an air outlet, a water inlet, and a water outlet. The air inlet of the heat exchange condenser is connected to the ventilation opening of the water distribution plate; the water inlet of the heat exchange condenser is connected to the water outlet of the water pump; and the water outlet of the heat exchange condenser is connected to the water distribution pipe.

Images