Phase-change atomization evaporation concentration high-salinity water device
By using a phase change atomizing evaporator to heat air with industrial wastewater to atomize high-salt water, the scaling problem of the atomization system caused by high-temperature flue gas is solved, achieving efficient room-temperature evaporation and energy-saving effects.
Patent Information
- Application Number
- CN202511504143.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2025-12-16
AI Technical Summary
The existing high-temperature flue gas directly contacts the atomization system, causing scaling in the atomization system, which affects the wastewater evaporation efficiency and does not fully utilize the heat of the high-temperature flue gas.
A phase change atomizing evaporation device is adopted, which uses industrial waste hot water to heat the air through heat exchange pipelines. The atomizing device atomizes the high-salt water into room temperature evaporation. The high-salt water droplets are collected by the mist-collecting grid to avoid direct contact with the high-temperature flue gas. Combined with the spray device, scaling is prevented.
It achieves efficient evaporation of high-salt water at room temperature, avoids scaling in the atomization system, improves evaporation efficiency, and saves energy.
Smart Images
Figure CN121134883A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of atomization devices, and particularly relates to a phase-change atomization evaporation and concentration of high-salt water device. BACKGROUND
[0002] In the industrial production process, a large amount of concentrated high-salt wastewater containing organic matter and total dissolved solids with a mass fraction of not less than 3.5% and total salt (calculated as sodium chloride) with a mass fraction of not less than 1% is generated. For such high-salt wastewater, the common evaporation treatment method at present is to use the high-temperature flue gas of the factory as a heat source for boiling point evaporation. The wastewater is converted into fine droplets through atomization technology, and then the water droplets are mixed with the high-temperature flue gas, so as to realize the evaporation of the wastewater and the solidification of the salt.
[0003] However, in the evaporation process, the high-temperature flue gas which is difficult to fully utilize directly contacts the atomization system. Since the high-temperature flue gas contains various impurities and has a high temperature, when it contacts the atomization system, it is easy to cause the scaling phenomenon on the surface of the atomization system, which affects the normal work of the atomization system, reduces the atomization effect, and further affects the evaporation efficiency of the wastewater.
[0004] Therefore, a new phase-change atomization evaporation and concentration of high-salt water device is needed to solve the problem of scaling of the atomization system in the evaporation process of high-salt water. SUMMARY
[0005] The purpose of the application is to provide a new phase-change atomization evaporation and concentration of high-salt water device which can solve the problem of easy scaling of the atomization system.
[0006] To achieve the above-mentioned purpose, the following technical solutions are adopted in the embodiments of the present application: The present application provides a phase-change atomization evaporation and concentration of high-salt water device, which comprises a mounting box, an air inlet and an air outlet are arranged at two ends of the mounting box respectively, a heat supply assembly, an atomization device and a mist catching grid are arranged in the mounting box; the heat supply assembly comprises a heat exchange pipeline arranged at the air outlet and a fan, the heat exchange pipeline is used for conveying industrial waste hot water, and the fan is used for driving air to pass through the heat exchange pipeline and push it backward, so that the air exchanges heat with the heat exchange pipeline; the atomization device comprises a flow guide cover, a motor connected with the flow guide cover and a support one supporting the motor, a atomization cover is arranged outside the flow guide cover, the flow guide cover is used for breaking the high-salt water into large water droplets, and finally the high-salt water droplets are formed through the atomization cover; the mist catching grid is arranged at the air outlet, a spraying device is arranged on the mist catching grid, the high-salt water droplets contact the air in the middle of the mounting box to evaporate at room temperature and form a saturated solution, the mist catching grid is used for catching the passing high-salt water droplets, the saturated wet air flows out from the air outlet, the spraying device renews the high-salt water droplets, and the high-salt water droplets flow to a storage bin through a storage pipeline.
[0007] Further, the heat exchange pipeline includes an inlet pipe and an outlet pipe for input and output of industrial waste hot water, and gaps are provided between the heat exchange pipelines.
[0008] Further, the heat exchange pipeline includes a main pipe of an outer ring and a plurality of branch pipes of an inner ring, and the plurality of branch pipes are provided with a second support, both sides and an outer end surface of the second support are provided with flow guide plates, and a plurality of regularly arranged mesh holes are provided on end surfaces of the flow guide plates.
[0009] Further, the number of fans is two, and the fans are fixedly arranged on the second support and located on the upper and lower end surfaces of the rear part of the second support.
[0010] Further, the flow guide cover is connected with the motor through a fixing column, and the fixing column is a cylinder.
[0011] Further, the top of the fixing column is provided with a boss, the surface of the boss is rough, the upper end surface of the boss is conical, and the top of the boss is provided with a threaded hole for fixed connection with the fixing column.
[0012] Further, the flow guide cover is a cylindrical shell, a plurality of flow guide openings are provided on the side surface of the shell for guiding large water droplets to smoothly enter the atomization cover, and an opening is provided on the top of the atomization device for accommodating a sealing assembly and an inlet pipe.
[0013] Further, according to the phase change atomization evaporation and concentration device for high-salinity water according to claim 1, an annular step is provided on the top opening of the flow guide cover, an annular protruding part is provided on the side surface of the inlet pipe, a corrugated sleeve is provided between the inlet pipe and the opening, a plug is provided outside the corrugated sleeve, and a snap ring is provided on the end part of the corrugated sleeve.
[0014] Further, the number of atomization covers is three and the atomization covers are stacked, the atomization cover is an annular sleeve, and annular circular plates are used to separate the atomization covers.
[0015] Further, the mist catching grid is composed of a plurality of arc-shaped pieces arranged in series, the bending directions of both ends of the arc-shaped pieces are opposite, and a wave-shaped narrow channel is formed between the arc-shaped pieces.
[0016] Technical effects are as follows: By providing a waste liquid pipeline connected with a water supply pump and communicating with the flow guide cover, the high-salinity water is driven to flow through the waste liquid pipeline, the motor drives the fixing column to drive the flow guide cover to rotate to break the high-salinity water, and the high-salinity water is atomized into water droplets through the flow guide opening and the atomization cover, and the heating pipeline is designed to use industrial hot waste water as a heat source, the fan is provided to make the heat exchange pipeline exchange heat with air, and then the hot air exchanges heat with the high-salinity water droplets to evaporate at normal temperature, which is different from direct contact with high-temperature flue gas, the atomization device only contacts with high-salinity water and normal-temperature air, thereby avoiding the attachment of impurities in the high-temperature flue gas and the scaling caused by high temperature, finally, the mist catching grid is designed to be equipped with a spraying device to wash the surface of the arc-shaped pieces for collection, thereby preventing the residual mist droplets from scaling to affect the atomization efficiency and the fluctuation of the overall temperature of the installation box, so that the effect of preventing scaling of the atomization system is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 Structure diagram of the phase change atomization evaporation concentration high-salt water device.
[0018] Figure 2 Structure diagram of the atomization device of the phase change atomization evaporation concentration high-salt water device.
[0019] Figure 3 Structure diagram of the motor and the flow guide cover of the phase change atomization evaporation concentration high-salt water device.
[0020] Figure 4 Structure diagram of the flow guide cover of the phase change atomization evaporation concentration high-salt water device.
[0021] Figure 5 Structure diagram of the motor and the cover plate of the phase change atomization evaporation concentration high-salt water device. DRAWINGS
[0022] 1, box, 2, fan, 3, atomization device, 4, mist catching grid, 5, heat exchange pipeline, 6, spraying device; 101, storage bin, 102, storage pipeline; 301, waste liquid pipeline, 302, tower barrel, 303, atomization cover, 304, fan, 305, flow guide cover, 306, fixed column, 307, cover plate, 308, flow guide cover; 3051, support plate, 3052, crushing plate, 3053, boss, 3071, cover sheet, 3081, strip-shaped hole, 3082, flow guide piece; 501, water inlet pipe, 502, water outlet pipe. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme of the present application clear, complete and the advantages more clear and obvious, the following will be further described in detail by combining the embodiments of the present application with the drawings. It should be understood that the specific embodiments described here are part of the embodiments of the present application, not all the embodiments, and are used to explain the embodiments of the present application, and do not limit the embodiments of the present application. All other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0024] In the description of the application, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0026] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by referring to examples. In the following description, many specific details are presented to provide a thorough understanding of the embodiments. However, it is obvious that these embodiments can not be limited to these specific details in practice for those skilled in the art. In some examples, well-known methods and structures are not described in detail to avoid unnecessarily complicating these embodiments. In addition, all embodiments can be used in combination with each other. Embodiments
[0027] As Figure 1 , Figure 2 and Figure 3As shown in this embodiment, for high-salinity wastewater containing organic matter and total dissolved solids of not less than 3.5% by mass and total salt content (calculated as sodium chloride) of not less than 1% by mass, the core of existing treatment methods for high-salinity wastewater is based on boiling point evaporation. Water separation is achieved by changing the temperature and pressure to bring the water in the high-salinity wastewater to its boiling point. This is done by heating the high-salinity wastewater to its boiling point in a container or by lowering the boiling point through air extraction, followed by condensation and recovery. Existing methods are mostly of three types: one is to use multiple evaporators in series simultaneously, where hot steam is introduced and passed through several evaporators, with the hot steam from one evaporator entering the next, evaporating in stages. However, this type of evaporator is only suitable for treating large quantities of stable solutions. Another method is to use a high-efficiency steam compressor to compress the secondary steam generated by the steam, converting electrical energy into heat energy to increase the enthalpy of the secondary steam. The increased heat energy is then used to... Secondary steam is input into the evaporation chamber for heating to recycle its existing heat energy. Evaporation and concentration are achieved through the evaporator's self-circulation. Like the first evaporation method, this method suffers from increased corrosion of the high-temperature unit and unstable operation. The third method utilizes high-temperature flue gas from the power plant as a heat source, using atomization technology to convert wastewater into fine droplets. These droplets are then mixed with the high-temperature flue gas to achieve wastewater evaporation and salt solidification. Like the first two methods, this method suffers from direct contact with high-temperature flue gas, leading to scaling in the atomization system, high energy consumption, and inefficient use of waste heat, resulting in blockages and high maintenance requirements. Therefore, a new evaporator is needed that is energy-efficient, highly efficient, and has a short construction period. This new evaporator should replace the three methods mentioned above, using hot air for rapid, ambient-temperature evaporation, and should be less prone to scaling. Furthermore, a problem with a single evaporator unit should not affect the overall operation of the system. Devices capable of achieving this include: The present invention discloses a phase change evaporation concentrated brine device, comprising: a housing 1, with an air inlet and an air outlet at both ends of the housing 1; a heating assembly, an atomizing device 3, and a mist-collecting grid 4 disposed inside the housing 1; the heating assembly includes a heat exchange pipe 5 disposed at the air outlet and a fan 2, the heat exchange pipe 5 being used to transport industrial wastewater hot water, and the fan 2 being used to drive air through the heat exchange pipe 5 and push it backward, so that the air exchanges heat with the heat exchange pipe 5; the atomizing device 3 includes a fixed column and a motor connected to the fixed column. The guide hood and the bracket supporting the motor are arranged in a fixed column. The guide hood 305 is installed on the outer sleeve of the guide hood 305, and the atomizing hood 303 is installed on the outer sleeve of the guide hood 305. After the high salt water passes through the guide hood 305, it forms large water droplets. Finally, it passes through the atomizing hood 303 to form high salt water droplets. The mist-catching grid 4 is set at the air outlet. The mist-catching grid 4 is equipped with a spray device 6. After the high salt water droplets come into contact with the air in the middle of the box 1, they evaporate at room temperature to form a saturated solution, and then flow to the receiving chamber 101 through the receiving pipe 102.
[0028] This device abandons the "boiling point evaporation" approach and instead utilizes the principle of natural air evaporation. By setting up a non-sealed environment in the container 1, an atomizing device 3 allows high-salt water particles to come into contact with low-saturation air, a fan 2 adjusts the air state and flow, a heat exchange pipeline 5 increases the air's water vapor carrying capacity to absorb more moisture, and finally a mist-catching grid 4 blocks high-salt water droplets from separating the saturated humid air. The high-salt water droplets are then captured by a spray device 6 above the mist-catching grid 4 and flow through a containment pipeline 102 to a containment chamber 101. The saturated humid air is discharged from the air outlet of the container 1, facilitating subsequent drying.
[0029] Specifically, the heat exchange pipeline 5 includes an inlet pipe 501 and an outlet pipe 502, used for the input and output of industrial waste hot water. It inputs industrial waste hot water at approximately 70 degrees Celsius and outputs industrial waste hot water at approximately 50 degrees Celsius from the outlet to complete the heating process. The heat exchange pipelines 5 have gaps between them and are curved to increase the contact area and contact time between the air and the pipelines, thereby improving heat exchange efficiency and ensuring the evaporation effect of high-salinity water droplets. More preferably, the heat exchange pipeline 5 includes an outer main pipe and several inner branch pipes that are curved, with a support bracket (2) fitted over the branch pipes. The sides and outer end faces are equipped with guide plates, which are made of thin metal plates. The guide plates have several regularly arranged mesh holes on their end faces. They are fixed to several branch pipes by bracket two, and a certain gap is maintained between the branch pipes. This allows the air to be dispersed by the guide plates and converge around the branch pipes to form turbulence under the drive of the fan 2. This effectively enhances the heat exchange process between the air and the branch pipes with flow. The gap between the heat exchange pipes 5 is 5 to 10 centimeters. This gap can ensure that the air can pass through smoothly and that the air can fully contact the heat exchange pipes 5 for heat exchange, avoiding the gap being too large or too small, which would affect the heat exchange and air circulation.
[0030] Specifically, there are two fans, which are fixedly mounted on the second bracket and located on the upper and lower rear end faces of the second bracket. The shroud and the motor are connected by a fixed column, which is a cylinder. Example
[0031] In this embodiment, the above-mentioned device has the advantages of energy saving, high efficiency, and short construction period. The device, which is supplemented by hot air for rapid room temperature evaporation heat, is not prone to scaling and the failure of a single evaporation system device does not affect the operation of the overall equipment, may also include: a container 1 of 9x3.2x3.2 meters, at least two fans 2, which are fixedly installed on the support 2, located at the upper and lower rear ends of the support 2, so that the air volume is 8,000 to 10,000 square meters per hour. The control method is PLC centralized control of the operation of fans 2, water pump and atomizing device 3. In this way, it can treat high-concentration brine containing sodium chloride and sodium sulfate in coal chemical industry, concentrate and crystallize mixed high-concentration brine containing sodium carbonate, sodium bicarbonate and a small amount of sodium chloride in alkaline brine, concentrate and crystallize lithium carbonate containing high-concentration sodium sulfate solution and rapidly concentrate brine pond water, high-concentration brine containing a small amount of sodium chloride, sodium sulfate and calcium sulfate in desulfurization wastewater, high COD wastewater containing inorganic salts such as sodium sulfate in chemical wastewater, and reduce concentration and sodium chloride crystallization extraction of landfill leachate.
[0032] Working principle: By connecting the waste liquid pipeline 301 to the water supply pump and the diversion hood 305, the high-salt water flows through the waste liquid pipeline 301. The motor drives the fixed column to rotate the diversion hood 305 to break up the high-salt water, which is then atomized into micron-sized high-salt water droplets through the diversion port and the atomizing hood 303. At the same time, the motor drives the fan 304 to rotate, forming an air duct in the tower 302, directly carrying the high-salt water droplets to the middle of the box 1. Inside the box 1, the high-salt water is evaporated at room temperature with the hot air driven by the fan 2, forming saturated high-salt water and highly saturated humid air. The highly saturated humid air is sent out through the air outlet, while the saturated high-salt water is captured by the fogging grid 4 and enters the receiving chamber 101 set outside the box 1 through the receiving pipeline 102 via the spray device 6. Thus, it evaporates at room temperature by utilizing the latent heat of the air and industrial waste heat. The tower 302 of the atomizing device 3 and the fan 2 set at the upper and lower ends of the box 1 control the airflow direction, thereby achieving the effect of preventing scaling in the atomization system. Example
[0033] In this embodiment, the high-salt water atomizing device 3 applied to room-temperature evaporation includes a container body 1 with openings on both sides. From left to right, the container is equipped with heat exchange pipes 5, a fan 2, an atomizing device 3, and a mist-collecting grid. The fan 2 drives room-temperature air to flow from left to right. The heat exchanger increases the air's water vapor carrying capacity to absorb more moisture. The atomizing device 3 sprays atomized high-salt water, allowing the high-salt water to contact the low-saturation air to form highly saturated humid air and high-salt water droplets. The mist-collecting grid collects the high-salt water droplets for subsequent drying. However, because room-temperature evaporation is used for high-salt water treatment, the water evaporation rate is lower than the salt particle aggregation rate. Furthermore, the temperature fluctuations within the guide hood 305 are not uniform, leading to premature crystallization and the formation of tiny crystals. Therefore, it is necessary to guide the flow of high-salt water within the atomizing device 3 and prevent concentration accumulation in the annular region within the pipe, reducing the probability of crystallization caused by excessively high local concentrations of high-salt water. Figures 3 to 5 As shown, the atomizing device 3 capable of achieving the above functions includes the following components: The system includes a base and a support bracket. A drive motor is installed between the support bracket and the base to rotate a fixed column 306, which in turn rotates the flow guide hood 305 and the atomizing hood 303. A guide hood 308 is also installed between the flow guide hood 305 and the water inlet pipe. The outer wall of the guide hood 308 has a strip-shaped hole 3081, and a guide plate 3082 is installed at the edge of the strip-shaped hole 3081. The guide plate 3082 is inclined and arranged around the outer wall of the guide hood 308. When the drive motor rotates the flow guide hood 305, air is introduced into the flow guide hood 305 through the atomizing hood 303 and the strip-shaped hole 3081. This airflow, in conjunction with the guide plate 3082, creates an airflow that causes the high saline solution inside the flow guide hood 305 to undergo centrifugal motion. The fixed column 306 connects the drive motor and the flow guide hood 305 and guides some of the high saline solution to flow inward, allowing the airflow to contact the high saline solution and shear the other part of the high saline solution, thereby preventing excessively high local concentrations and increasing the gas-liquid contact area.
[0034] Specifically, the fixed column 306 is a cylinder, and the top of the fixed column 306 may be provided with a boss. The surface of the boss is rough and the upper end face is conical. The top of the boss is provided with a threaded hole for fixed connection with the fixed column 306. Ribs are provided on the fixed column 306. The ribs are spirally arranged on the surface of the fixed column 306. The ribs are in the same direction of rotation as the guide plate 3082. The ribs are used to enhance the airflow. When the high brine is driven by the water pump to impact the top surface of the boss, it flows along the conical surface and is rotated, cut and broken by the ribs below, forming a double swirling flow field of spiral flow inside the guide shroud 308 and annular swirling flow outside the fixed column 306. This is used to further improve the guiding effect of the guide column and the liquid shearing efficiency, thereby further avoiding crystallization caused by excessive local concentration. Specifically, a crushing plate 3052 and a support plate are provided inside the drainage hood 305. The crushing plate 3052 has an opening in the middle and several guide holes at its end edges. The support plate 3051 is located below the crushing plate 3052 and is sleeved on the fixing column 306. The high-salt water above the support plate 3051 flows along the inside of the drainage hood 305. Part of it moves through the through holes in the outer wall to the atomizing hood 303, and the other part flows to the crushing plate 3052, so that the crushing plate 3052 and the rotating airflow cooperate to form a collision shearing effect. The high-salinity fluid particles are crushed in one step. The portion flowing through the central opening is guided to form a local vortex. The guide hole is used to evenly distribute the airflow and salt particles, improving the stability of the vortex. The high-salinity fluid that passes through the fixed column 306 moves to the support plate 3051 and forms a collision shearing effect with the impact and rotating airflow. The portion flowing through the outside of the support plate 3051 is guided to form a local vortex. This is used to prevent the airflow and high-salinity fluid particles from directly impacting the end of the guide hood 305 through the crushing plate 3052 and the support plate 3051, thereby reducing turbulence loss and further improving turbulence stability. Specifically, in the atomizing device 3, the internal space of the guide hood 308 is used as the first breaking part, the space above the breaking plate 3052 in the guide hood 305 is used as the second breaking part, and the space below the breaking plate 3052 is used as the third breaking part. The number of atomizing hoods 303 on the outside is three and they are stacked. The atomizing hoods 303 are annular sleeves, and the atomizing hoods 303 are separated by annular circular plates to divide them into three layers, each layer corresponding to a breaking part. The high-salinity water is dispersed by a double swirling flow field composed of spiral ribs and guide vanes 3082. The high-salinity water particles are further refined by the three-stage crushing and refining process of the flow guide hood 305, flow guide hood 308, crushing plate 3052, support plate 3051 and fixed column 306, and the contact time between the air and the high-salinity water particles is extended. The vortex flow field is formed by the crushing plate 3052 and the flow guide holes set in the crushing plate 3052, as well as the structural position of the support plate 3051, thereby increasing the water loss rate, avoiding excessively high local concentrations and reducing the probability of crystallization.
[0035] Specifically, the support includes a cover plate 307 with several air inlets. A cover plate 3071 is provided at the edge of the air inlets. The cover plate 3071 is arc-shaped and located on the upper surface of the cover plate 307, with its opening facing the air inlet. A drive motor is located on the cover plate 307 and below it. A fan 304 is connected below the drive motor. The fan 304 is used to guide the flow of gas and high-salt water mist as they pass through the atomizing cover 303. The cover plate 3071 is used to guide the gas to flow at an angle and meander, and to prevent water droplets from flowing into the fan 2, thereby increasing the flow rate and ensuring the contact effect.
[0036] Specifically, the flow hood 305 is a cylindrical shell with several flow ports on the side of the shell to guide large water droplets smoothly into the atomizing hood 303. The top of the atomizing device 3 has an opening to accommodate the sealing component and the water inlet pipe 501.
[0037] Specifically, the flow hood 305 is a cylindrical shell with several flow ports on the side of the shell to guide large water droplets smoothly into the atomizing hood 303. The top of the atomizing device 3 has an opening to accommodate the sealing assembly and the water inlet pipe 501. The sealing assembly includes a corrugated sleeve between the water inlet pipe 501 and the opening, with a plug on the outside of the corrugated sleeve and a retaining ring at the end of the corrugated sleeve.
[0038] Specifically, the top opening of the drainage hood 305 is provided with an annular protrusion 3053, and the annular protrusion 3053 has inclined surfaces on the upper and lower sides to improve the swirling stability and scouring resistance of high saline solution flowing from the guide hood 308 to the drainage hood 305, thereby extending its service life.
[0039] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.
Claims
1. A phase change atomization evaporation and concentration device for high-salt water, characterized in that, include: The box has an air inlet and an air outlet at both ends, a heating component, an atomizing device and a mist-collecting grid inside the box, and a receiving pipe at the bottom of the box, which is connected to the receiving chamber. The heating assembly includes a heat exchange pipeline and a fan located at the air outlet. The heat exchange pipeline is used to transport industrial waste hot water, and the fan is used to drive air through the heat exchange pipeline and push it backward, so that the air exchanges heat with the heat exchange pipeline. The atomizing device includes a flow guide hood, a motor connected to the flow guide hood, and a bracket supporting the motor. The flow guide hood is covered with an atomizing hood. The flow guide hood is connected to a waste liquid pipeline, and the waste liquid pipeline is connected to a water pump. The water pump is used to transport high-salt water. The flow guide hood is used to break the high-salt water into large water droplets, which are then formed into high-salt water droplets by passing through the atomizing hood. The mist-catching grid is installed at the air outlet, and a spraying device is installed on the mist-catching grid. After the high-salt water droplets come into contact with the air in the middle of the box, they evaporate at room temperature to form a saturated solution. The mist-catching grid is used to capture the passing high-salt water droplets, so that the spraying device can wash the high-salt water droplets and allow the high-salt water droplets to flow through the receiving pipe to the receiving chamber.
2. The phase change atomization evaporation and concentration device for high-salt water according to claim 1, characterized in that, The heat exchange pipeline includes an inlet pipe and an outlet pipe for the input and output of industrial waste hot water. There are gaps between the heat exchange pipelines, and the heat exchange pipelines are arranged in a curved manner.
3. The phase change atomization evaporation and concentration device for high-salt water according to claim 1, characterized in that, The heat exchange pipeline includes an outer main pipe and several inner branch pipes. The branch pipes are fitted with a second support. The second support has guide plates on both sides and the outer end face. The guide plates have several regularly arranged mesh holes on their end faces.
4. The phase change atomization evaporation and concentration device for high-salt water according to claim 3, characterized in that, The number of fans is two, which are fixedly installed on the second bracket and located on the upper and lower rear end faces of the second bracket.
5. The phase change atomization evaporation and concentration device for high-salt water according to claim 1, characterized in that, The drainage cover is connected to the motor via a fixing column, which is a cylinder.
6. The phase change atomization evaporation and concentration device for high-salt water according to claim 5, characterized in that, The top of the fixing column is provided with a boss, the upper surface of the boss is conical, and the top of the boss is provided with a threaded hole for fixed connection with the fixing column.
7. The phase change atomization evaporation and concentration device for high-salt water according to claim 2, characterized in that, The flow guide is a cylindrical shell with several flow guide ports on the side of the shell to guide large water droplets smoothly into the atomizing hood. The top of the atomizing device has an opening to accommodate the sealing component and the water inlet pipe.
8. The phase change atomization evaporation and concentration device for high-salt water according to claim 7, characterized in that, The top opening of the drainage hood is provided with an annular step, the side of the water inlet pipe is provided with an annular protrusion, a corrugated sleeve is provided between the water inlet pipe and the opening, a seal is provided outside the corrugated sleeve, and a retaining ring is provided at the end of the corrugated sleeve.
9. The phase change atomization evaporation and concentration device for high-salt water according to claim 1, characterized in that, The number of atomizing covers is three, which are stacked together. The atomizing covers are annular, and the atomizing covers are separated by annular circular plates.
10. The phase change atomization evaporation and concentration device for high-salt water according to claim 1, characterized in that, The fog-catching grid is composed of several arc-shaped pieces arranged in opposite directions at both ends, forming a narrow, wave-shaped channel between the arc-shaped pieces.