Evaporator facilitating descaling

Abstract

The utility model belongs to evaporimeter technical field, specifically speaking is a kind of evaporimeter convenient to descale, including cylinder body, descaling assembly includes ultrasonic transducer, the heating chamber, evaporator chamber, separation chamber inner wall is equipped with multiple ultrasonic transducers, the heating chamber side wall is equipped with air inlet pipe, the heating chamber inner wall is equipped with main pipe, the main pipe is equipped with multiple branch pipes, the evaporator chamber side wall is equipped with feed pipe, by adding the water of descaling agent to the inner wall of cylinder body, main pipe inner and outer wall, branch pipe inner and outer wall, silk screen demister are soaked, descaling agent carries out chemical dissolution, complexation, stripping, dispersion to the dirt adhered to it, destroys dirt structure, simultaneously, ultrasonic transducer generates high frequency ultrasonic wave and spreads in water, destroys scale layer structure, cooperates water and descaling agent, ultrasonic wave can accelerate chemical agent penetration scale layer, this structure avoids to disassemble evaporimeter inside, is beneficial to improve the convenience of descaling.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically an evaporator that is easy to descale. Background Technology

[0002] An evaporator is a heat exchange device used to convert liquids into gases or steam. In industrial production, evaporators are required in processes such as solvent recovery, salt extraction, wastewater treatment, and food and chemical production.

[0003] A Chinese patent with authorization announcement number CN 219390144 U discloses an evaporator for easy descaling, including an upper support plate with an inlet pipe on its surface. The inlet end of the inlet pipe is threadedly connected to a descaling connector. A microchannel plate is welded to the surface of the inlet pipe below the upper support plate. A lower support plate is located below the microchannel plate, and an outlet pipe is located on the upper surface of the lower support plate. The outlet pipe is welded to the other side of the microchannel plate. This invention addresses the problem that traditional cleaning methods, typically chemical cleaning and acid washing, are effective against various deposits and are more time-efficient than mechanical methods. However, chemical cleaning is corrosive to the system and other metal components, easily causing corrosion of equipment pipelines, and can lead to environmental pollution during discharge.

[0004] After prolonged use, existing evaporators typically require disassembly and descaling of their internal structure. However, the disassembly process is cumbersome, making descaling inconvenient. Therefore, this paper proposes an evaporator that facilitates descaling to address this issue. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes an evaporator that is easy to descale.

[0006] The technical solution adopted by this utility model to solve its technical problem is an evaporator that facilitates descaling, including a cylinder body. A support frame is installed on the bottom side of the cylinder body. A PLC controller is installed on the outer wall of the cylinder body. The cylinder body contains a heating chamber, an evaporation chamber, and a separation chamber. Descaling components are installed on the inner walls of the heating chamber, evaporation chamber, and separation chamber. The descaling components include ultrasonic transducers. Multiple ultrasonic transducers are installed on the inner walls of the heating chamber, evaporation chamber, and separation chamber. The multiple ultrasonic transducers are connected to the PLC controller through internal circuits. A wire mesh demister is installed on the inner wall of the separation chamber. An air inlet pipe is installed on the side wall of the heating chamber. A first solenoid valve is installed on the air inlet pipe. A main pipe is installed on the inner wall of the heating chamber. Multiple branch pipes are installed on the main pipe. A feed pipe is installed on the side wall of the evaporation chamber. One end of the feed pipe is connected to one of the branch pipes. The system is connected to the following components: a second solenoid valve is installed on the feed pipe; a drain pipe is installed on the main pipe; a third solenoid valve is installed on the drain pipe; an exhaust pipe is installed at the top of the cylinder; a discharge pipe is installed on the bottom of the cylinder; and a fourth solenoid valve is installed on the discharge pipe. The PLC controller is connected to the first, second, third, and fourth solenoid valves via internal circuitry. Water containing descaling agent is used to soak the inner wall of the cylinder, the inner and outer walls of the main pipe, the inner and outer walls of the branch pipes, and the wire mesh demister. The descaling agent chemically dissolves, complexes, peels off, and disperses the scale adhering to these surfaces, disrupting the scale structure. Simultaneously, the ultrasonic transducer generates high-frequency ultrasonic waves that propagate in the water, further disrupting the scale structure. Combined with water and descaling agent, the ultrasonic waves accelerate the penetration of chemical agents into the scale layer. This structure avoids disassembling the evaporator's interior, improving the ease of descaling.

[0007] Preferably, an electromagnetic anti-scaling device is connected to the other end of the feed pipe, and a connecting pipe is connected to the other end of the electromagnetic anti-scaling device. The electromagnetic anti-scaling device is connected to a PLC controller through an internal circuit. The feed pipe, discharge pipe, inner wall of the cylinder, main pipe, branch pipes, and wire mesh demister are coated with an anti-scaling coating. The anti-scaling coating on the feed pipe, discharge pipe, inner wall of the cylinder, main pipe, branch pipes, and wire mesh demister can reduce scale adhesion. By installing an electromagnetic anti-scaling device on the feed pipe, the crystallization behavior of calcium and magnesium ions in the water is changed, preventing hard scale from depositing on the inner wall of the evaporator and the inner wall of the pipes, thereby reducing scale formation, reducing cleaning frequency, extending the evaporator cleaning cycle, and reducing downtime. This structure, through electromagnetic anti-scaling, can reduce scale formation and improve the scale resistance of the evaporator.

[0008] The advantages of this utility model are:

[0009] 1. This utility model involves soaking the inner wall of the cylinder, the inner and outer walls of the main pipe, the inner and outer walls of the branch pipes, and the wire mesh demister in water with added descaling agent. The descaling agent chemically dissolves, complexes, peels off, and disperses the dirt attached to these surfaces, thus destroying the dirt structure. At the same time, the ultrasonic transducer generates high-frequency ultrasonic waves that propagate in the water, further damaging the scale layer structure. Combined with water and descaling agent, the ultrasonic waves can accelerate the penetration of chemical agents into the scale layer. This structure avoids disassembling the inside of the evaporator, which improves the convenience of descaling.

[0010] 2. This utility model reduces scale adhesion by coating the feed pipe, discharge pipe, inner wall of the cylinder, main pipe, branch pipes, and wire mesh demister with an anti-scaling coating; by installing an electromagnetic anti-scaling device on the feed pipe, it prevents hard scale from depositing on the inner wall of the evaporator and pipes by changing the crystallization behavior of calcium and magnesium ions in the water, thereby reducing scale formation, reducing cleaning frequency, extending the evaporator cleaning cycle, and reducing downtime. This structure, through electromagnetic anti-scaling, can reduce scale formation and improve the scale resistance of the evaporator. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 A schematic diagram of the three-dimensional structure of an ultrasonic transducer;

[0014] Figure 3 This is a schematic diagram of the three-dimensional structure of the pipe;

[0015] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the cylinder block;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the electromagnetic anti-scaling device.

[0017] In the diagram: 1. Cylinder; 2. PLC controller; 3. Heating chamber; 4. Evaporation chamber; 5. Separation chamber; 501. Wire mesh demister; 6. Ultrasonic transducer; 601. Air inlet pipe; 602. Main pipe; 603. Branch pipe; 604. Feed pipe; 605. Drain pipe; 606. Electromagnetic anti-scaling device; 607. Connecting pipe; 101. Exhaust pipe; 102. Discharge pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-4As shown, an evaporator for easy descaling includes a cylinder body 1, a support frame mounted on the bottom side of the cylinder body 1, and a PLC controller 2 mounted on the outer wall of the cylinder body 1. Inside the cylinder body 1 are a heating chamber 3, an evaporation chamber 4, and a separation chamber 5. A descaling assembly is mounted on the inner walls of the heating chamber 3, evaporation chamber 4, and separation chamber 5. The descaling assembly includes ultrasonic transducers 6. Multiple ultrasonic transducers 6 are mounted on the inner walls of the heating chamber 3, evaporation chamber 4, and separation chamber 5, and are connected to the PLC controller 2 via internal circuitry. A wire mesh demister 501 is mounted on the inner wall of the separation chamber 5. An air inlet pipe 601 is mounted on the side wall of the heating chamber 3. A first solenoid valve is installed on 601. A main pipe 602 is installed on the inner wall of the heating chamber 3, and multiple branch pipes 603 are installed on the main pipe 602. A feed pipe 604 is installed on the side wall of the evaporation chamber 4, and one end of the feed pipe 604 is connected to one of the branch pipes 603. A second solenoid valve is installed on the feed pipe 604. A drain pipe 605 is installed on the main pipe 602, and a third solenoid valve is installed on the drain pipe 605. An exhaust pipe 101 is installed at the top of the cylinder 1, and a discharge pipe 102 is installed on the bottom side of the cylinder 1. A fourth solenoid valve is installed on the discharge pipe 102. The PLC controller 2 is connected to the first solenoid valve, the second solenoid valve, and the third solenoid valve via its internal circuit. The third and fourth solenoid valves are connected. During operation, existing evaporators, after long-term use, typically require disassembly and descaling of their internal structure. Due to the cumbersome disassembly process, descaling is inconvenient. When the evaporator is in use, a non-viscous solution is introduced into the feed pipe 604. The solution enters the branch pipe 603 from the feed pipe 604, then the main pipe 602, and subsequently all the branch pipes 603. In large industrial systems, boiler-generated steam is often used as the heat source for the evaporator, forming a tiered energy utilization system. The boiler-supplied steam enters the cylinder 1 from the inlet pipe 601. The steam is then... The surface of the heat exchanger 603 transfers heat to the solution, causing it to vaporize. Then, the wire mesh demister 501 in the separation chamber 5 separates the vapor from the concentrate. The wire mesh demister 501 is model HC-2XX. The wire mesh demister 501 is a gas-liquid separation device. The gas passes through the wire pad of the wire mesh demister 501, which can remove the entrained mist. The steam is discharged from the exhaust pipe 101. In large industrial systems, the primary steam generated by the boiler drives the evaporator. The secondary steam of the evaporator can be used as the heat source for the second effect. By connecting them in series, energy consumption is significantly reduced. The concentrate flows to the bottom of the cylinder 1 and is finally discharged from the discharge pipe 102, thus realizing solution concentration.

[0020] After prolonged use, the evaporator requires descaling. This is done by adding descaling agents such as citric acid or EDTA to the water. The water with added descaling agents enters the branch pipe 603 through the inlet pipe 604, then the main pipe 602, gradually filling the main pipe 602 and all the branch pipes 603, overflowing into the tank 1, and finally filling the tank 1 completely. The water with added descaling agents soaks the inner walls of the tank 1, the inner and outer walls of the main pipe 602, the inner and outer walls of the branch pipes 603, and the wire mesh demister 501. The descaling agents chemically dissolve, complex, peel off, and disperse the scale adhering to these surfaces, breaking down the scale structure. Simultaneously, the PLC controller 2 controls the operation of multiple ultrasonic transducers 6. The ultrasonic transducers 6 are model PZT-8, and they generate high-frequency ultrasonic waves... The ultrasonic waves propagate in the water, forming alternating high-pressure and low-pressure waves. During the low-pressure phase, tiny bubbles are generated in the liquid, and during the high-pressure phase, these bubbles rapidly collapse, instantly releasing violent shock waves and micro-jet streams. The shock waves directly peel off the scale layer attached to the surface, while the micro-jet streams scour tiny crevices, disrupting the scale layer structure. Combined with the cleaning fluid (water and descaling agent), the ultrasonic waves accelerate the penetration of chemical agents into the scale layer, and the cavitation effect enhances the cleaning fluid's decontamination ability. Subsequently, the PLC controller 2 controls the third solenoid valve on the drain pipe 605 and the fourth solenoid valve on the discharge pipe 102 to open, allowing the cleaning fluid to carry the peeled-off dirt out of the drain pipe 605 and discharge pipe 102. This achieves convenient and efficient decontamination of the evaporator's interior. This structure avoids disassembling the evaporator's interior, thus improving the ease of descaling.

[0021] Please see Figure 5 As shown, the other end of the feed pipe 604 is connected to an electromagnetic anti-scaling device 606, and the other end of the electromagnetic anti-scaling device 606 is connected to a connecting pipe 607. The electromagnetic anti-scaling device 606 is connected to the PLC controller 2 through an internal circuit. The feed pipe 604, discharge pipe 102, inner wall of cylinder 1, main pipe 602, branch pipe 603, and wire mesh demister 501 are coated with an anti-scaling coating. During operation, after prolonged use, scale easily adheres to the internal structure of existing evaporators. Due to the difficulty in preventing scale buildup in advance, the anti-scaling performance of the device is poor. The electromagnetic anti-scaling device is connected to the feed pipe 604, discharge pipe 102, inner wall of cylinder 1, and main pipe 607. The pipes 602, 603, and 501 are coated with an anti-scaling coating to reduce scale adhesion. An electromagnetic anti-scaling device 606 (model EMF-100) is installed on the feed pipe 604. This device utilizes a physical water treatment method that alters the crystallization behavior of calcium and magnesium ions in the water, preventing the deposition of hard scale on the inner walls of the evaporator and pipes. This reduces scale formation, cleaning frequency, and extends the evaporator cleaning cycle, thus minimizing downtime. This electromagnetic anti-scaling structure reduces scale formation and improves the evaporator's anti-scaling properties.

[0022] Working principle: After long-term use, existing evaporators usually require disassembly and descaling of their internal structure. The disassembly process is cumbersome, making descaling inconvenient. In contrast, when the evaporator is in use, a solution is introduced into the feed pipe 604. The solution then enters the branch pipes 603, then the main pipe 602, and finally all the branch pipes 603. In large industrial systems, boiler steam is often used as the heat source for the evaporator, creating a tiered energy utilization. Boiler steam enters the cylinder 1 through the inlet pipe 601. The steam heats the surface of the branch pipes 603, transferring heat to the solution and causing it to vaporize. Finally, the solution passes through the wire mesh demister in the separation chamber 5. 501 separates steam from the concentrate. The wire mesh demister 501, model HC-2XX, is a gas-liquid separation device. Gas passes through the wire mesh pads of the demister 501, removing entrained mist. Steam is discharged from the exhaust pipe 101. In large industrial systems, the primary steam generated by the boiler drives the evaporator, and the secondary steam from the evaporator can serve as the heat source for the second effect. This series connection significantly reduces energy consumption. The concentrate flows to the bottom of the cylinder 1 and is finally discharged from the discharge pipe 102, achieving solution concentration. After long-term use, the evaporator needs descaling. This is done by adding descaling agents such as citric acid or EDTA to the water. The water with the added descaling agent enters through the feed pipe 604. The water, containing descaling agent, enters branch pipe 603, then main pipe 602, gradually filling both main pipe 602 and all branch pipes 603, overflowing into cylinder 1. Finally, cylinder 1 is filled completely. The water, now containing descaling agent, soaks the inner walls of cylinder 1, the inner and outer walls of main pipe 602, the inner and outer walls of branch pipes 603, and the wire mesh demister 501. The descaling agent chemically dissolves, complexes, peels off, and disperses the attached dirt, disrupting its structure. Simultaneously, the PLC controller 2 controls the operation of multiple ultrasonic transducers 6 (model PZT-8). These transducers generate high-frequency ultrasonic waves that propagate in the water, forming alternating high-pressure and low-pressure waves. During the low-pressure phase, high-pressure waves are generated in the liquid. Microbubbles rapidly collapse under high pressure, instantly releasing intense shock waves and microjets. The shock waves directly peel off the scale layer attached to the surface, while the microjets scour tiny gaps, destroying the scale layer structure. Combined with the cleaning fluid (water and descaling agent), the ultrasound accelerates the penetration of chemical agents into the scale layer, and the cavitation effect enhances the cleaning fluid's decontamination ability. Then, the PLC controller 2 controls the third solenoid valve on the drain pipe 605 and the fourth solenoid valve on the discharge pipe 102 to open, and the cleaning fluid carrying the peeled-off dirt is discharged from the drain pipe 605 and the discharge pipe 102, realizing convenient and efficient decontamination of the evaporator's interior. This structure avoids disassembling the evaporator's interior, which helps improve the convenience of descaling.After prolonged use, existing evaporators are prone to scale buildup on their internal structure. Because it's difficult to prevent scale buildup in advance, the device's scale prevention performance is poor. Applying an anti-scale coating to the feed pipe 604, discharge pipe 102, inner wall of the cylinder 1, main pipe 602, branch pipe 603, and wire mesh demister 501 can reduce scale buildup. Installing an electromagnetic scale inhibitor 606 (model EMF-100) on the feed pipe 604 utilizes a physical water treatment method. By altering the crystallization behavior of calcium and magnesium ions in the water, it prevents hard scale from depositing on the inner walls of the evaporator and pipes, thereby reducing scale formation, cleaning frequency, extending the evaporator cleaning cycle, and reducing downtime. This electromagnetic scale inhibitor structure effectively reduces scale formation and improves the evaporator's scale prevention performance.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An evaporator that facilitates descaling, characterized in that: The system includes a cylinder body (1), a support frame mounted on the bottom side of the cylinder body (1), a PLC controller (2) mounted on the outer wall of the cylinder body (1), a heating chamber (3), an evaporation chamber (4), and a separation chamber (5) arranged inside the cylinder body (1), and descaling components mounted on the inner walls of the heating chamber (3), evaporation chamber (4), and separation chamber (5). The descaling assembly includes an ultrasonic transducer (6). Multiple ultrasonic transducers (6) are installed on the inner walls of the heating chamber (3), evaporation chamber (4), and separation chamber (5). The multiple ultrasonic transducers (6) are connected to the PLC controller (2) through an internal circuit. A wire mesh demister (501) is installed on the inner wall of the separation chamber (5). An air inlet pipe (601) is installed on the side wall of the heating chamber (3). A first solenoid valve is installed on the air inlet pipe (601). A main pipe (602) is installed on the inner wall of the heating chamber (3). Multiple branch pipes (603) are installed on the main pipe (602). A feed pipe (604) is installed on the side wall of the evaporation chamber (4).

2. The evaporator for easy descaling according to claim 1, characterized in that: One end of the feed pipe (604) is connected to one of the branch pipes (603), and a second solenoid valve is installed on the feed pipe (604).

3. An evaporator for easy descaling according to claim 1, characterized in that: A drain pipe (605) is installed on the main pipe (602), and a third solenoid valve is installed on the drain pipe (605).

4. An evaporator for easy descaling according to claim 1, characterized in that: An exhaust pipe (101) is installed at the top of the cylinder (1), and a discharge pipe (102) is installed on the bottom side of the cylinder (1). A fourth solenoid valve is installed on the discharge pipe (102).

5. An evaporator for easy descaling according to claim 1, characterized in that: The PLC controller (2) is connected to the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve respectively through its internal circuit.

6. An evaporator for easy descaling according to claim 1, characterized in that: The other end of the feed pipe (604) is connected to an electromagnetic anti-scaling device (606), and the other end of the electromagnetic anti-scaling device (606) is connected to a connecting pipe (607). The electromagnetic anti-scaling device (606) is connected to the PLC controller (2) through an internal circuit. The feed pipe (604), discharge pipe (102), inner wall of cylinder (1), main pipe (602), branch pipe (603), and wire mesh demister (501) are coated with an anti-scaling coating.

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