Forced circulation spraying evaporator

Abstract

The utility model relates to the technical field of spraying evaporation, in particular to a forced circulation spraying evaporator which comprises an evaporation cylinder, an air inlet bin and an air outlet bin are arranged at the upper end in the evaporation cylinder, a transfer bin is arranged at the lower end in the evaporation cylinder, and a plurality of heat exchange pipes are fixedly arranged in the air inlet bin, the transfer bin and the air outlet bin. A plurality of heat exchange fins are fixedly arranged on the surface of the heat exchange pipe, a plurality of spraying net plates are fixedly arranged in the evaporation barrel, liquid is driven by the water pump to forcibly circulate in the evaporation barrel, and the problem that circulation is not smooth when a traditional natural circulation evaporator treats a high-concentration and high-viscosity solution can be effectively solved. Forced circulation ensures uniform distribution and rapid flow of liquid on the surface of the heat exchange tube, so that the evaporation efficiency is remarkably improved, and the evaporation time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of spray evaporation technology, specifically a forced circulation spray evaporator. Background Technology

[0002] Evaporators are common heat exchange devices in industrial production, widely used in chemical, pharmaceutical, food processing, and seawater desalination industries. Their main function is to evaporate liquids through heating, thereby achieving the separation, concentration, or drying of substances. With the development of industrial technology, the performance requirements for evaporators are becoming increasingly stringent, especially in terms of evaporation efficiency, heat exchange effect, operational stability, and energy conservation and environmental protection.

[0003] Traditional evaporators typically employ natural circulation for evaporation, driven by the density difference of the liquid itself. However, this method has several limitations. First, natural circulation evaporators are prone to poor circulation when handling high-concentration, high-viscosity solutions, leading to low evaporation efficiency. Second, the heat exchange tubes in traditional evaporators usually have smooth surfaces, limiting heat exchange efficiency, especially when handling high heat loads, making it difficult to meet the demands of high-efficiency heat exchange. Furthermore, traditional evaporators often lack effective design in the spraying and condensation processes, easily resulting in heat waste and unstable equipment operation.

[0004] Regarding spray systems, traditional evaporators typically have simple spray devices with poor spraying effects, often resulting in uneven liquid distribution, which in turn affects evaporation efficiency and heat exchange. Furthermore, the inlet and outlet systems of traditional evaporators are not optimally designed, leading to longer flow paths for the heat transfer medium and significant heat loss, thus reducing the overall energy efficiency of the equipment.

[0005] Therefore, a forced circulation spray evaporator is needed to improve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a forced circulation spray evaporator to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A forced circulation spray evaporator includes an evaporator cylinder, an air inlet chamber and an air outlet chamber at the upper end of the evaporator cylinder, a transfer chamber at the lower end of the evaporator cylinder, a plurality of heat exchange tubes fixedly installed inside the air inlet chamber, the transfer chamber and the air outlet chamber, a plurality of heat exchange fins fixedly installed on the surface of the heat exchange tubes, and a plurality of spray mesh plates fixedly installed inside the evaporator cylinder.

[0009] As a preferred embodiment of this utility model, a water tank is provided at the lower end of the evaporation cylinder, and the water tank and the evaporation cylinder are connected by a through hole.

[0010] As a preferred embodiment of this utility model, a filter plate is fixedly installed inside the water tank, and a water inlet is fixedly installed on the surface of the filter plate corresponding to the lower end of the filter plate.

[0011] As a preferred embodiment of this utility model, an air inlet pipe is provided on one side of the water tank corresponding to the upper end of the filter plate, and a steam pipe is fixedly provided on the upper end of the evaporation cylinder.

[0012] As a preferred embodiment of this utility model, the water tank is equipped with a water pump, which is connected to the spray screen plate through a hollow pipe.

[0013] As a preferred embodiment of this utility model, the surface of the spray mesh plate is provided with a plurality of mesh holes, and the lower end of the spray mesh plate is fixedly provided with a plurality of spray holes.

[0014] As a preferred embodiment of this utility model, the upper ends of the air inlet chamber and the air outlet chamber are respectively fixed with a heat medium discharge pipe and a heat medium inlet pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Forced circulation design: By using a water pump to force the liquid to circulate within the evaporation cylinder, this effectively overcomes the problem of poor circulation in traditional natural circulation evaporators when processing high-concentration, high-viscosity solutions. Forced circulation ensures uniform distribution and rapid flow of the liquid on the heat exchange tube surface, significantly improving evaporation efficiency and shortening evaporation time.

[0017] Optimized heat exchange structure: Several heat exchange fins are fixed on the surface of the heat exchange tubes, which greatly increases the heat exchange area and improves the heat exchange efficiency. The fin structure can enhance the convective heat transfer effect between the liquid and the heat medium, allowing heat to be transferred to the liquid more quickly and promoting the evaporation of the liquid. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0022] In the diagram: 1. Heat exchange tube; 2. Air inlet chamber; 3. Spray screen plate; 4. Heat exchange fins; 5. Air inlet pipe; 6. Transfer chamber; 7. Filter plate; 8. Water pump; 9. Water tank; 10. Evaporator; 11. Air outlet chamber; 12. Heat medium discharge pipe; 13. Steam pipe; 14. Hollow pipe; 15. Water inlet; 16. Through hole; 17. Heat medium inlet pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figure 1-4 This utility model provides a technical solution:

[0028] A forced circulation spray evaporator includes an evaporator cylinder 10. The upper part of the evaporator cylinder 10 has an inlet chamber 2 and an outlet chamber 11, while the lower part has a transfer chamber 6. Several heat exchange tubes 1 are fixedly installed inside the inlet chamber 2, transfer chamber 6, and outlet chamber 11. Several heat exchange fins 4 are fixedly installed on the surface of the heat exchange tubes 1. Several spray mesh plates 3 are fixedly installed inside the evaporator cylinder 10. The design of the heat exchange tubes 1 and heat exchange fins 4 effectively improves heat exchange efficiency, while the spray mesh plates 3 uniformly spray the liquid, ensuring the uniformity and efficiency of the evaporation process.

[0029] As an example of this utility model, a water tank 9 is provided at the lower end of the evaporator cylinder 10, and the water tank 9 is connected to the evaporator cylinder 10 through a through hole 16. The design of the water tank 9 provides a stable water source for the evaporator, and the through hole 16 ensures smooth water flow and improves evaporation efficiency.

[0030] As an example of this utility model, a filter plate 7 is fixedly installed inside the water tank 9, and a water inlet 15 is fixedly installed on the surface of the filter plate 7 corresponding to its lower end. The filter plate 7 can effectively filter impurities in the water, ensuring that the water entering the evaporation cylinder 10 is pure, and the design of the water inlet 15 facilitates the replenishment of water into the water tank 9.

[0031] As an example of this utility model, an air inlet pipe 5 is provided on one side of the water tank 9 corresponding to the upper end of the filter plate 7, and a steam pipe 13 is fixedly provided on the upper end of the evaporation cylinder 10. The design of the air inlet pipe 5 and the steam pipe 13 enables the evaporator to effectively introduce and discharge gas, ensuring the smooth progress of the evaporation process.

[0032] As an example of this utility model, a water pump 8 is installed inside the water tank 9, and the water pump 8 is connected to the spray screen plate 3 through a hollow pipe 14. The water pump 8 provides power to the spray screen plate 3, ensuring that the liquid can be sprayed evenly on the heat exchange tube 1, thereby improving the evaporation efficiency.

[0033] As an example of this utility model, the surface of the spray mesh plate 3 is provided with a plurality of mesh holes, and the lower end of the spray mesh plate 3 is fixedly provided with a plurality of spray holes. The design of the mesh holes and spray holes enables the liquid to be sprayed evenly onto the heat exchange tube 1, ensuring the uniformity and efficiency of the evaporation process.

[0034] As an example of this utility model, the upper ends of the air inlet chamber 2 and the air outlet chamber 11 are respectively fixed with a heat medium discharge pipe 12 and a heat medium inlet pipe 17. The design of the heat medium discharge pipe 12 and the heat medium inlet pipe 17 enables the heat medium to be effectively recycled, improving the thermal energy utilization efficiency and reducing energy consumption.

[0035] Working principle: When using,

[0036] 1. Water circulation and spraying

[0037] The function of water tank 9: Water tank 9 is equipped with a filter plate 7, which can filter out impurities in the water to ensure that the water recycled into the evaporator 10 is clean. The water inlet 15 at the lower end of the filter plate 7 is used to replenish water into water tank 9.

[0038] Function of water pump 8: Water pump 8 is installed inside water tank 9, and water pump 8 is connected to spray screen plate 3 through hollow pipe 14. Water pump 8 draws water from water tank 9 and delivers it to spray screen plate 3 through hollow pipe 14.

[0039] The spraying function of the spray mesh plate 3: The surface of the spray mesh plate 3 is provided with several mesh holes and spray holes. The water pumped by the water pump 8 is evenly sprayed into the interior of the evaporation cylinder 10 through the mesh holes and spray holes of the spray mesh plate 3, forming water mist or water film, increasing the contact area between water and hot air, and improving evaporation efficiency.

[0040] 2. Heat exchange process

[0041] The heat medium circulates through the heat medium inlet pipe 17 into the outlet chamber 11, then flows through the heat exchange tube 1, and finally exits through the heat medium outlet pipe 12. The heat medium inside the heat exchange tube 1 exchanges heat with the water mist or water film on the outer surface of the heat exchange tube 1, transferring heat to the water and causing it to evaporate.

[0042] The function of heat exchange fins 4: Several heat exchange fins 4 are fixedly provided on the surface of the heat exchange tube 1. The heat exchange fins 4 can increase the surface area of ​​the heat exchange tube 1 and further improve the heat exchange efficiency. The design of the heat exchange fins 4 allows heat to be transferred more evenly to the water mist or water film, accelerating the water evaporation process.

[0043] 3. Evaporation and Steam Removal

[0044] Evaporation process: The water mist or water film sprayed by the spray mesh plate 3 absorbs heat under the action of the heat exchange tube 1 and heat exchange fins 4, and gradually evaporates into steam. The evaporated steam rises inside the evaporation cylinder 10 and is finally discharged through the steam pipe 13.

[0045] The function of the transfer chamber 6: Located at the lower end of the evaporation cylinder 10, the transfer chamber 6 serves to buffer and collect incompletely evaporated water. The incompletely evaporated water returns to the water tank 9 and is then recirculated and sprayed by the water pump 8, ensuring full utilization of water and high evaporation efficiency.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forced circulation spray evaporator, comprising an evaporation cylinder (10), characterized in that: The upper part of the evaporator (10) is provided with an air inlet chamber (2) and an air outlet chamber (11). The lower part of the evaporator (10) is provided with a transfer chamber (6). Several heat exchange tubes (1) are fixedly provided inside the air inlet chamber (2), the transfer chamber (6) and the air outlet chamber (11). Several heat exchange fins (4) are fixedly provided on the surface of the heat exchange tubes (1). Several spray mesh plates (3) are fixedly provided inside the evaporator (10).

2. The forced circulation spray evaporator according to claim 1, characterized in that: The lower end of the evaporator (10) is provided with a water tank (9), and the water tank (9) is connected to the evaporator (10) through a through hole (16).

3. A forced circulation spray evaporator according to claim 2, characterized in that: The water tank (9) is fixedly equipped with a filter plate (7), and a water inlet (15) is fixedly provided on the surface of the filter plate (7) corresponding to the lower end of the filter plate (7).

4. A forced circulation spray evaporator according to claim 3, characterized in that: The water tank (9) is provided with an air inlet pipe (5) on one side corresponding to the upper end of the filter plate (7), and the steam pipe (13) is fixedly provided on the upper end of the evaporator (10).

5. A forced circulation spray evaporator according to claim 4, characterized in that: The water tank (9) is equipped with a water pump (8), which is connected to the spray screen (3) through a hollow pipe (14).

6. A forced circulation spray evaporator according to claim 5, characterized in that: The spray mesh plate (3) has several mesh holes on its surface and several spray holes are fixedly provided at the lower end of the spray mesh plate (3).

7. A forced circulation spray evaporator according to claim 6, characterized in that: The upper ends of the air inlet chamber (2) and the air outlet chamber (11) are respectively fixed with a heat medium discharge pipe (12) and a heat medium inlet pipe (17).

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