A descaling device for a heat exchanger

Abstract

The utility model relates to heat exchanger descaling technical field discloses a kind of descaling device for heat exchanger, including first descaler, second descaler, the top between first descaler, second descaler is fixedly connected with three-way liquid inlet pipe, the bottom between first descaler, second descaler is fixedly connected with three-way liquid outlet pipe, the surface between first descaler, second descaler and three-way liquid inlet pipe is provided with detection control flow component.The utility model in the present application, by assembling electromagnetic descaling component, connecting seat is installed, sealing cover realizes detachable fixation and sealing by connecting bolt, inside electromagnetic field generator generates electromagnetic field descaling, filter frame filters impurity, cooperate with nanometer rare earth inner bushing scale resistance, in use, each component cooperates descaling, filter, prevents leakage, realizes the purpose of enhancing descaling effect, reducing scale adhesion, convenient maintenance, guaranteeing descaling device stable and efficient operation, indirectly helping heat exchanger reliable work.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger descaling technology, and in particular to a descaling device for heat exchangers. Background Technology

[0002] In many industrial sectors such as petroleum, chemical, power, and metallurgy, heat exchangers are key equipment for achieving heat transfer and energy recovery. Their operating efficiency directly affects the energy consumption level, product quality, and operating costs of the entire production system.

[0003] During long-term operation of a heat exchanger, impurities such as calcium and magnesium ions, suspended solids, and microorganisms in the heat exchange medium can easily form scale and dirt deposits on the inner wall of the heat exchange tubes. These scale deposits not only significantly increase the thermal resistance of the heat exchange tubes and drastically reduce the heat transfer efficiency of the heat exchanger, leading to increased energy waste, but also reduce the flow cross-sectional area of ​​the heat exchange tubes, increase the flow resistance of the medium, and cause problems such as increased system pressure and increased energy consumption. Therefore, it is necessary to use a heat exchanger descaling device for cleaning.

[0004] While existing heat exchanger descaling devices can achieve basic descaling functions, they suffer from several drawbacks. Firstly, they lack a highly efficient and coordinated descaling structure, often relying on a single descaling method. This prevents the integrated operation of descaling, filtration, and leak prevention, resulting in poor descaling performance, difficulty in effectively addressing scale buildup, and inconvenient maintenance. Furthermore, they cannot guarantee long-term stable and efficient operation, thus affecting the reliable operation of the heat exchanger. Secondly, existing descaling devices lack a comprehensive detection and flow control structure, making it difficult to accurately control the flow rate of the heat exchange medium and monitor the scaling condition inside the heat exchanger in real time. When abnormal scaling or flow occurs, they fail to issue timely warning signals, easily leading to heat exchanger shutdown due to excessive scaling or uncontrolled flow. This not only further impacts the heat exchanger's efficiency and lifespan but also causes numerous inconveniences in the production process, failing to meet the industrial demand for stable and efficient heat exchanger operation. Therefore, this paper proposes a descaling device for heat exchangers to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a descaling device for heat exchangers, aiming to solve the problems of poor descaling effect, lack of efficient synergistic descaling and flow control structure, easy interruption of heat exchanger operation, and difficulty in early warning of abnormalities in the existing heat exchanger descaling devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a descaling device for a heat exchanger, comprising a first descaling device and a second descaling device, wherein a three-way liquid inlet pipe is fixedly connected between the tops of the first descaling device and the second descaling device, and a three-way liquid outlet pipe is fixedly connected between the bottoms of the first descaling device and the second descaling device, wherein a detection and flow control component is provided between the surfaces of the first descaling device, the second descaling device and the three-way liquid inlet pipe, wherein a fixing base is fixedly connected to one end of the first descaling device and the second descaling device, and a connecting base is fixedly connected to the other end of the first descaling device and the second descaling device, and an electromagnetic descaling component is provided between the first descaling device, the second descaling device and the connecting base;

[0007] The assembled electromagnetic descaling assembly includes a sealing cover, which is fixedly connected to the connecting seat by connecting bolts. An electromagnetic field generator and a filter frame are fixedly connected to the inner side of the sealing cover from top to bottom.

[0008] As a further description of the above technical solution:

[0009] The sealing cap and the connecting seat are both provided with a plurality of threaded holes arranged in a ring on their surfaces. The inner wall of the threaded hole is adapted to the outer wall size of the connecting bolt, and the connecting bolt is provided in a one-to-one correspondence with the threaded hole.

[0010] As a further description of the above technical solution:

[0011] The filter frame has a U-shaped filter mesh frame structure with a groove at the top.

[0012] As a further description of the above technical solution:

[0013] The detection and flow control assembly includes a control box and an electrically controlled valve. One side of the lower surface of the control box is fixedly connected to the upper surface of the first descaling device, and the other side of the lower surface of the control box is fixedly connected to the upper surface of the second descaling device. The electrically controlled valve is sleeved and fixedly connected to the outside of the liquid outlet end of the three-way liquid inlet pipe.

[0014] As a further description of the above technical solution:

[0015] A controller panel is fixedly connected to the surface of the control box, and an audible and visual alarm is fixedly connected to the top of the control box.

[0016] As a further description of the above technical solution:

[0017] An ultrasonic thickness sensor is fixedly connected to the bottom of the control box. There are two ultrasonic thickness sensors. The detection end of one ultrasonic thickness sensor extends through the interior of the first descaling unit, and the detection end of the other ultrasonic thickness sensor extends through the interior of the second descaling unit.

[0018] As a further description of the above technical solution:

[0019] Both the first and second descaling devices have nano-rare earth inner linings fixedly connected to their inner walls.

[0020] As a further description of the above technical solution:

[0021] The two outlet ends of the three-way inlet pipe are respectively connected to the interior of the first descaling device and the second descaling device, and the two inlet ends of the three-way outlet pipe are respectively connected to the interior of the first descaling device and the second descaling device.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by assembling an electromagnetic descaling component, a connecting seat is provided for its installation, and a sealing cover is detachably fixed and sealed by connecting bolts. The inner electromagnetic field generator generates an electromagnetic field to descaling, and the filter frame filters impurities. Combined with a nano-rare earth inner liner for scale prevention and corrosion resistance, during use, the various components work together to descaling, filter impurities, and prevent leakage, thereby enhancing the descaling effect, reducing scale adhesion, and facilitating maintenance. This ensures the stable and efficient operation of the descaling device and indirectly contributes to the reliable operation of the heat exchanger.

[0024] 2. In this utility model, through the detection and control components, the control box is securely installed, the electric control valve controls the liquid volume, the ultrasonic thickness sensor monitors scaling, the audible and visual alarm warns of abnormalities, the controller panel assists in operation, and the three-way liquid inlet pipe separates the liquid, the three-way liquid outlet pipe collects the liquid, the fixed base fixes the descaling device, the first and second descaling devices work alternately, and all components work together to control flow, monitor and supply the installation, so as to achieve the purpose of ensuring the continuous operation of the heat exchanger, accurate liquid control, and timely early warning, ensuring the stability of the device and improving the reliability of descaling. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a descaling device for a heat exchanger proposed in this utility model.

[0026] Figure 2 This is a schematic cross-sectional view of the first descaling unit of a descaling device for a heat exchanger proposed in this utility model.

[0027] Figure 3 This is a schematic diagram showing the disassembled structure of the electromagnetic descaling component assembled at the first and second descaling units of a descaling device for a heat exchanger proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the detection and flow control component of a descaling device for heat exchangers proposed in this utility model.

[0029] Legend:

[0030] 1. First descaling unit; 2. Second descaling unit; 3. Three-way inlet pipe; 4. Detection and flow control assembly; 41. Control box; 42. Controller panel; 43. Audible and visual alarm; 44. Ultrasonic thickness sensor; 45. Electrically controlled valve; 5. Connecting seat; 6. Assemble electromagnetic descaling assembly; 61. Sealing cover; 62. Connecting bolt; 63. Electromagnetic field generator; 64. Filter frame; 7. Nano-rare earth inner liner; 8. Three-way drain pipe; 9. Fixing seat. Detailed Implementation

[0031] 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 protection scope of the present utility model.

[0032] Reference Figure 2 - Figure 4This utility model provides an embodiment of a descaling device for a heat exchanger, comprising a first descaling device 1 and a second descaling device 2. The two descaling devices can work alternately to ensure continuous operation of the heat exchanger. A three-way inlet pipe 3 is fixedly connected between the tops of the first descaling device 1 and the second descaling device 2 for distributing the liquid to be treated into the two descaling devices. A three-way drain pipe 8 is fixedly connected between the bottoms of the first descaling device 1 and the second descaling device 2 for collecting and discharging the liquid treated by the two descaling devices. The two outlet ends of the three-way inlet pipe 3 are respectively connected to... The inlet pipe 8 is connected to the interior of the first descaling device 1 and the second descaling device 2, enabling the liquid to be transported from the inlet pipe into the interior of the descaling device. The two inlet ends of the three-way drain pipe 8 are respectively connected to the interior of the first descaling device 1 and the second descaling device 2, enabling the liquid inside the descaling device to be discharged to the drain pipe. A fixing base 9 is fixedly connected to one end of each of the first descaling device 1 and the second descaling device 2 for fixing the descaling device in a designated position. A detection and flow control component 4 is provided between the surfaces of the first descaling device 1, the second descaling device 2, and the three-way inlet pipe 3 for monitoring the descaling process. In addition to controlling the liquid flow direction, the flow control component 4 includes a control box 41 and an electric control valve 45. The control box 41 is the core control component, and the electric control valve 45 is used to control the opening and closing of the liquid passage. The lower surface of the control box 41 is fixedly connected to the upper surface of the first descaling device 1 and the second descaling device 2 to achieve a stable installation of the control box 41. The electric control valve 45 is sleeved and fixedly connected to the outside of the liquid outlet end of the three-way liquid inlet pipe 3, which can accurately control the amount of liquid entering each descaling device. A controller panel 42 is fixedly connected to the surface of the control box 41 for operators to set parameters. For operation and control, an audible and visual alarm 43 is fixedly connected to the top of the control box 41, which will issue a warning when the descaling device malfunctions. An ultrasonic thickness sensor 44 is fixedly connected to the bottom of the control box 41 to detect the thickness of the scale on the inner wall of the descaling device. There are two ultrasonic thickness sensors 44. The detection end of one ultrasonic thickness sensor 44 extends through to the inside of the first descaling device 1, and the detection end of the other ultrasonic thickness sensor 44 extends through to the inside of the second descaling device 2, respectively monitoring the scaling condition of the two descaling devices.

[0033] Reference Figure 1 - Figure 3The inner walls of both the first descaling device 1 and the second descaling device 2 are fixedly connected with nano-rare earth inner linings 7. The nano-rare earth material has anti-scaling and corrosion-resistant properties, reducing scale buildup. The other ends of both the first descaling device 1 and the second descaling device 2 are fixedly connected with connecting seats 5, providing an installation base for assembling the electromagnetic descaling assembly 6. The electromagnetic descaling assembly 6 is installed between the first descaling device 1, the second descaling device 2, and the connecting seats 5, performing descaling through electromagnetic action to enhance the descaling effect. The electromagnetic descaling assembly 6 includes a sealing cap 61, which seals the ends of the descaling devices to prevent liquid leakage. A connecting bolt 62 is threaded between the sealing cap 61 and the connecting seat 5, allowing for detachable connection between the sealing cap 61 and the connecting seat 5. The sealing cover 61 and the connecting seat 5 are both provided with multiple threaded holes arranged in a ring on their surfaces, providing installation positions for the connecting bolts 62. The inner wall of the threaded hole is adapted to the outer wall size of the connecting bolt 62 to ensure the tightness and stability of the threaded connection. The connecting bolts 62 are set one-to-one with the threaded holes to ensure that each threaded hole has a corresponding bolt for fixing. An electromagnetic field generator 63 and a filter frame 64 are fixedly connected to the inner side of the sealing cover 61 in sequence. The electromagnetic field generator 63 generates an electromagnetic field to remove scale, and the filter frame 64 can filter impurities in the liquid. The filter frame 64 has a U-shaped filter mesh frame structure with a groove at the top. This structure facilitates the passage of liquid and effectively intercepts impurities, while also facilitating later cleaning and maintenance.

[0034] Working principle: When the descaling device for the heat exchanger is working, the liquid to be treated first enters the system through the three-way inlet pipe 3. The three-way inlet pipe 3 will distribute the liquid to the first descaling device 1 and the second descaling device 2, and the two descaling devices can work alternately to ensure that the heat exchanger runs continuously without interruption. During the liquid transportation process, the electric control valve 45, which is sleeved and fixed on the outside of the liquid outlet end of the three-way inlet pipe 3, can accurately control the amount of liquid entering each descaling device, realizing flexible opening and closing of the liquid passage and flow regulation.

[0035] When liquid enters the first descaling unit 1 or the second descaling unit 2, the nano-rare earth inner liner 7, fixedly connected to the inner wall of the descaling unit, comes into play. Its anti-scaling and corrosion-resistant properties reduce the adhesion of dirt in the liquid to the inner wall of the descaling unit. At the same time, the electromagnetic descaling assembly 6, assembled between the descaling unit and the connecting seat 5, starts to work. The electromagnetic field generator 63, fixed inside the sealing cover 61, generates an electromagnetic field, which treats the dirt in the liquid through electromagnetic action, enhancing the descaling effect. The filter frame 64 has a U-shaped filter mesh structure with a groove at the top, which filters impurities in the liquid. This structure facilitates the passage of liquid, effectively intercepts impurities, and is convenient for later cleaning and maintenance. The sealing cover 61 is threadedly connected to the connecting seat 5 by the connecting bolt 62. The inner wall of the threaded hole matches the outer wall of the connecting bolt 62 one-to-one, achieving a detachable fixed connection while ensuring the seal at the end of the descaling unit. To prevent liquid leakage, the treated liquid is collected and discharged through the three-way drain pipe 8. The two inlet ends of the three-way drain pipe 8 are respectively connected to the interior of the first descaling device 1 and the second descaling device 2. Throughout the process, the detection and control component 4 continues to play a role: the control box 41, which is fixed on the upper surface of the first descaling device 1 and the second descaling device 2, serves as the core control component. The two ultrasonic thickness sensors 44 at the bottom of the control box 41 extend into the interior of the two descaling devices and detect the scale thickness on the inner wall of the descaling devices in real time. The operator can set parameters and control the operation through the controller panel 42. When the corresponding descaling device malfunctions, the audible and visual alarm 43 on the top of the control box 41 will issue a warning in time. The other descaling device ensures the stable operation of the device. In addition, the fixing seat 9 at one end of the first descaling device 1 and the second descaling device 2 can fix the descaling device in a designated position to ensure the stability of the device during operation.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A descaling device for a heat exchanger, comprising a first descaling unit (1) and a second descaling unit (2), characterized in that: A three-way inlet pipe (3) is fixedly connected between the top of the first descaling device (1) and the second descaling device (2), and a three-way drain pipe (8) is fixedly connected between the bottom of the first descaling device (1) and the second descaling device (2). A detection and flow control assembly (4) is provided between the surfaces of the first descaling device (1), the second descaling device (2) and the three-way inlet pipe (3). A fixing seat (9) is fixedly connected to one end of the first descaling device (1) and the second descaling device (2). A connecting seat (5) is fixedly connected to the other end of the first descaling device (1) and the second descaling device (2). An electromagnetic descaling assembly (6) is provided between the first descaling device (1), the second descaling device (2) and the connecting seat (5). The assembled electromagnetic descaling assembly (6) includes a sealing cover (61), which is fixedly connected to the connecting seat (5) by connecting bolts (62). An electromagnetic field generator (63) and a filter frame (64) are fixedly connected to the inner side of the sealing cover (61) from top to bottom.

2. The descaling device for a heat exchanger according to claim 1, characterized in that: The sealing cap (61) and the connecting seat (5) are both provided with a plurality of threaded holes arranged in a ring on their surfaces. The inner wall of the threaded hole is adapted to the outer wall size of the connecting bolt (62), and the connecting bolt (62) is provided in a one-to-one correspondence with the threaded hole.

3. A descaling device for a heat exchanger according to claim 1, characterized in that: The filter frame (64) has a U-shaped filter mesh frame structure with a top groove.

4. A descaling device for a heat exchanger according to claim 1, characterized in that: The detection and flow control assembly (4) includes a control box (41) and an electric control valve (45). One side of the lower surface of the control box (41) is fixedly connected to the upper surface of the first descaling device (1), and the other side of the lower surface of the control box (41) is fixedly connected to the upper surface of the second descaling device (2). The electric control valve (45) is sleeved and fixedly connected to the outside of the liquid outlet of the three-way liquid inlet pipe (3).

5. A descaling device for a heat exchanger according to claim 4, characterized in that: A controller panel (42) is fixedly connected to the surface of the control box (41), and an audible and visual alarm (43) is fixedly connected to the top of the control box (41).

6. A descaling device for a heat exchanger according to claim 5, characterized in that: An ultrasonic thickness sensor (44) is fixedly connected to the bottom of the control box (41). There are two ultrasonic thickness sensors (44). The detection end of one ultrasonic thickness sensor (44) extends through to the inside of the first descaling device (1), and the detection end of the other ultrasonic thickness sensor (44) extends through to the inside of the second descaling device (2).

7. A descaling device for a heat exchanger according to claim 1, characterized in that: The inner walls of the first descaling device (1) and the second descaling device (2) are both fixedly connected with nano-rare earth inner linings (7).

8. A descaling device for a heat exchanger according to claim 1, characterized in that: The two outlet ends of the three-way inlet pipe (3) are respectively connected to the interior of the first descaling device (1) and the second descaling device (2), and the two inlet ends of the three-way outlet pipe (8) are respectively connected to the interior of the first descaling device (1) and the second descaling device (2).

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