Online descaling equipment for heat exchanger

Abstract

The heat exchanger online descaling equipment comprises a circumferential guide rail, a radial guide rail, a descaling device body, ultrasonic probes and a control module, a circumferential sliding groove is formed in the front face of the circumferential guide rail, the descaling device body is arranged in front of the circumferential guide rail, and the left ultrasonic probe and the right ultrasonic probe are fixedly connected to the descaling device body; the rear end of the descaling device body is fixedly connected with a fixing frame, a second servo motor is fixedly installed in the fixing frame, the power output end of the second servo motor is fixedly connected with a second rotating shaft, the second rotating shaft is fixedly connected with a rotating wheel, the right end of the circumferential guide rail is fixedly connected with a first sliding block, and a radial guide rail is arranged on the right side of the circumferential guide rail. According to the ultrasonic descaling system and the intelligent control center, through cooperative work of the double-guide-rail system and radial and circumferential speed regulation patrol, it is guaranteed that an ultrasonic probe can cover all key areas of the heat exchanger, and real-time adjustment of the descaling effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic descaling equipment, in particular to an online descaling equipment for a heat exchanger. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used.

[0003] The disposal of heat exchangers has always been a difficult problem for enterprises. The lack of online real-time disposal methods has caused the supervision of heat exchangers to be out of control or semi-out of control. The resulting leakage, emergency shutdown, and switching have caused losses to varying degrees. It is of great significance to develop an effective heat exchanger disposal system to solve or alleviate the problem of long-term operation of heat exchangers. Summary of the invention

[0004] The technical problems to be solved by the present invention are:

[0005] To solve the above technical problems, the present invention provides the following technical solutions: an online descaling device for a heat exchanger, comprising a circumferential guide rail, a radial guide rail, a descaling device body, an ultrasonic probe and a control module, wherein a circumferential slide groove is provided on the front of the circumferential guide rail, a descaling device body is arranged in front of the circumferential guide rail, two groups of left and right ultrasonic probes are fixedly connected to the descaling device body, wherein high-frequency sound waves are emitted by the ultrasonic probes to generate a vibration effect (cavitation effect) of tiny bubbles, so that scale and sediment inside the heat exchanger can be effectively removed, a fixed frame is fixedly connected to the rear end of the descaling device body, a second servo motor is fixedly installed inside the fixed frame, a second rotating shaft is fixedly connected to the power output end of the second servo motor, wherein the second rotating shaft is rotatably connected to the fixed frame, a rotating wheel is fixedly connected to the second rotating shaft, and the rotating wheel is clamped in the circumferential slide groove.

[0006] As a preferred solution of the online descaling device for heat exchanger described in the present invention, the upper and lower ends of the fixed frame are fixedly connected to limit plates, wherein the upper and lower groups of limit plates are located on the upper and lower sides of the circumferential guide rail, which can limit the fixed frame on the circumferential guide rail.

[0007] As a preferred solution of the online descaling device for heat exchangers described in the present invention, a ball groove is provided in the circumferential slide groove, and a second ball is movably connected to the rear end of the rotating wheel, wherein the second ball slides in the ball groove.

[0008] As a preferred solution of the online descaling equipment for heat exchangers described in the present invention, wherein: a plurality of groups of limit frames are installed with bolts on the inner side of the circumferential guide rail, wherein the limit frames are evenly distributed on the inner side of the circumferential guide rail, the limit frames are rotatably connected to limit wheels, and the outer layers of the limit wheels are fixedly connected to a rubber layer.

[0009] As a preferred solution of the online descaling equipment for heat exchangers described in the present invention, one end of the circumferential guide rail is fixedly connected to a stop position 1, the other end of the circumferential guide rail is fixedly connected to a stop position 2, the lower ends of the stop position 1 and the stop position 2 are fixedly connected to support plates, and the lower ends of the support plates are movably connected to several groups of ball bearings 1.

[0010] As a preferred solution of the online descaling device for a heat exchanger described in the present invention, the first slider is fixedly connected to the right end of the circumferential guide rail, a radial guide rail is arranged on the right side of the circumferential guide rail, a radial slide groove is opened on the left side of the radial guide rail, and the first slider is clamped in the radial slide groove.

[0011] As a preferred solution of the online descaling device for a heat exchanger described in the present invention, a first servo motor is fixedly installed at the front end of the radial guide rail, a first threaded rod is fixedly connected to the power output end of the first servo motor, the first threaded rod is rotatably connected to the radial guide rail, and the first slider is threadedly connected to the first threaded rod.

[0012] As a preferred solution of the online descaling equipment for heat exchangers described in the present invention, a control module is fixedly installed on the right side of the radial guide rail, wherein the control module is equipped with a data correction system (intelligent control center), which can realize automatic power on and off, speed regulation, and power regulation of the ultrasonic descaling system under the big data analysis modeling analysis of the data source.

[0013] Beneficial effects of the present invention:

[0014] 1. Through the radial guide rail, the ultrasonic probe can be moved back and forth along the radial direction of the heat exchanger tube, covering all positions of the entire tube. It is suitable for heat exchangers that need to clean different radial areas inside the tube, and can ensure that all radial areas inside the heat exchanger tube can be cleaned. At the same time, through the circumferential guide rail, the ultrasonic probe can be moved along the circumferential track of the tube. Such an ultrasonic descaling system works together through the dual guide rail system, radial and circumferential speed control patrol, ensuring that the ultrasonic probe can cover all key areas of the heat exchanger and ensure real-time adjustment of the descaling effect.

[0015] 2. When the rotating wheel moves, the second ball on the rear side of the rotating wheel will roll along the ball groove, and the second ball can reduce the friction on the rear side of the rotating wheel, thereby making the rotating wheel move more smoothly. When the circumferential guide rail moves back and forth around the heat exchanger, the support plate at the lower end of the circumferential guide rail can support the circumferential guide rail, thereby reducing the pressure of the first slider, and the first ball at the lower end of the support plate can roll on the ground, which can reduce the friction between the support plate and the ground, making it move more smoothly. At the same time, the limit frame and the limit wheel will limit the heat exchanger, and the limit wheel will move along the outer surface of the heat exchanger. The rubber layer on the surface of the limit wheel can reduce damage to the outer surface of the heat exchanger.

[0016] 3. The control module uses big data analysis technology, combined with the inlet and outlet flow data of the heat exchanger tube and shell, to perform real-time analysis and modeling. According to the on-site conditions, it can also be equipped with an X-ray imaging analysis system to detect the solid content and scale, and realize intelligent control of ultrasonic cleaning. The system can judge the degree of scaling of the heat exchanger according to the flow change, and compare it with the standard heat exchanger model to realize automatic power on and off, power adjustment and speed regulation. By adjusting the ultrasonic power in real time, it ensures the best descaling effect. Among them, online X-ray solid content detection is a detection method that uses X-ray technology to monitor the solid content in the heat exchanger in real time. Through precise X-ray detection and data processing technology, it can provide more accurate solid content measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the circumferential guide rail and the radial guide rail in the embodiment of the present disclosure.

[0018] Figure 2 Schematic diagram of the structure of the control module and the first servo motor in the embodiment of the present disclosure.

[0019] Figure 3 The limiting frame and limiting wheel in the embodiment of the present disclosure.

[0020] Figure 4 Schematic diagram of the structure of the cut-off position 1 and the cut-off position 2 in the embodiment of the present disclosure.

[0021] Figure 5 The rotating wheel and the second servo motor in the embodiment of the present disclosure.

[0022] Figure 6 The ultrasonic probe and the fixing frame in the embodiment of the present disclosure.

[0023] Figure numerals: 1. Circumferential guide rail; 2. Radial guide rail; 3. Radial slide groove; 4. First servo motor; 5. First threaded rod; 6. Control module; 7. First slider; 8. Circumferential slide groove; 9. Stop position one; 10. Stop position two; 11. Ball one; 12. Support plate; 13. Limit frame; 14. Limit wheel; 15. Rubber layer; 16. Descaling device body; 17. Ultrasonic probe; 18. Limit plate; 19. Second servo motor; 20. Rotating wheel; 21. Ball two; 22. Fixed frame. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1 to 6This embodiment provides an online descaling device for a heat exchanger, comprising a circumferential guide rail 1, a radial guide rail 2, a descaling device body 16, an ultrasonic probe 17 and a control module 6, wherein a circumferential slide groove 8 is provided on the front of the circumferential guide rail 1, a descaling device body 16 is provided in front of the circumferential guide rail 1, and two groups of left and right ultrasonic probes 17 are fixedly connected to the descaling device body 16, wherein the ultrasonic probe 17 emits high-frequency sound waves to generate a vibration effect (cavitation effect) of tiny bubbles, so that the scale and sediment inside the heat exchanger can be effectively removed, and the descaling device The rear end of the main body 16 is fixedly connected to a fixed frame 22, a second servo motor 19 is fixedly installed inside the fixed frame 22, a second rotating shaft is fixedly connected to the power output end of the second servo motor 19, wherein the second rotating shaft is rotatably connected to the fixed frame 22, a rotating wheel 20 is fixedly connected to the second rotating shaft, wherein the rotating wheel 20 is clamped in the circumferential slide groove 8, and the upper and lower ends of the fixed frame 22 are fixedly connected to the limit plates 18, wherein the upper and lower sets of limit plates 18 are located on the upper and lower sides of the circumferential guide rail 1, and the fixed frame 22 can be limited on the circumferential guide rail 1, and the circumferential slide A ball groove is provided in the groove 8, and a second ball 21 is movably connected to the rear end of the rotating wheel 20, wherein the second ball 21 slides in the ball groove. When in use, the circumferential guide rail 1 is located around the heat exchanger, and the second rotating shaft can be driven to rotate by starting the second servo motor 19, and the second rotating shaft drives the rotating wheel 20 to rotate, and the rotating wheel 20 can move along the circumferential slide groove 8 with the descaling device, wherein the ultrasonic probe 17 can detect the thickness and distribution of scale and sediment through the propagation of ultrasonic waves in the heat exchanger pipe, and the ultrasonic probe 1 7 can utilize the high-frequency vibration of ultrasound to remove scale and sediment on the inner wall of the pipe, so that the ultrasonic probe 17 can not only clean the inside of the heat exchanger, but also monitor the inside of the heat exchanger. At the same time, the ultrasonic probe 17 on the descaling device moving along the circumferential guide rail 1 can monitor and clean the surroundings of the heat exchanger. In addition, when the rotating wheel 20 moves, the ball 21 on the rear side of the rotating wheel 20 will roll along the ball groove, and the ball 21 can reduce the friction on the rear side of the rotating wheel 20, thereby making the rotating wheel 20 move more smoothly.

[0027] Example 2

[0028] Reference Figures 1 to 4This embodiment is based on the previous embodiment, and is different from the previous embodiment in that a plurality of limit frames 13 are bolted on the inner side of the circumferential guide rail 1, wherein the limit frames 13 are evenly distributed on the inner side of the circumferential guide rail 1, and the limit frames 13 are rotatably connected to the limit wheels 14, and the outer layers of the limit wheels 14 are fixedly connected to the rubber layers 15, and a stop position 1 9 is fixedly connected to one end of the circumferential guide rail 1, and a stop position 2 10 is fixedly connected to the other end of the circumferential guide rail 1, and the lower ends of the stop position 1 9 and the stop position 2 10 are fixedly connected to the support plates 12, and the lower ends of the support plates 12 are movably connected to a plurality of ball bearings 11, and the right end of the circumferential guide rail 1 is fixedly connected to the first slider 7, and a radial guide rail 2 is arranged on the right side of the circumferential guide rail 1, and a radial guide rail 2 is arranged on the left side. The first slider 7 is clamped in the radial slider 3, the first servo motor 4 is fixedly installed at the front end of the radial guide rail 2, and the first servo motor 4 is fixedly connected to the first threaded rod 5 at the power output end, wherein the first threaded rod 5 is rotatably connected to the radial guide rail 2, and the first slider 7 is threadedly connected to the first threaded rod 5, and a control module 6 is fixedly installed on the right side of the radial guide rail 2, wherein the control module 6 has a data correction system (intelligent control center), which can realize the automatic switching, speed regulation, and power regulation of the ultrasonic descaling system under the data source data big data analysis modeling analysis. When in use, the data source ~ the existing heat exchanger tube side, shell side inlet and outlet flow of the enterprise, and the solid content data of X-ray contrast analysis is installed (according to the on-site conditions, the acoustic wave detection can be selected). The scale forming degree of the heat exchanger is determined according to the flow change, and the heat exchanger model (standard value) is compared to realize automatic on / off. The real-time adjustment and shutdown operation of the ultrasonic power are determined according to the solid content. Among them, the online X-ray solid content detection is a detection method that uses X-ray technology to monitor the solid content in the heat exchanger in real time. The principle is that the X-ray absorption capacity of solid matter and liquid or gas is different. By measuring the intensity of X-ray after penetrating the material, the content of solid matter can be inferred. In addition, starting the first servo motor 4 can drive the first threaded rod 5 to rotate, the first threaded rod 5 drives the first slider 7 to move forward and backward, the first slider 7 drives the circumferential guide rail 1 to move forward and backward, and the circumferential guide rail 1 drives the descaling device to move forward and backward, thereby making the descaling device The device can monitor and clean different positions before and after the heat exchanger, such as the ultrasonic descaling system, the orbital rotating dual-probe intelligent frequency conversion descaling, radial and circumferential speed regulation patrol, to ensure the real-time adjustment of the descaling effect. In addition, when the circular guide rail 1 moves back and forth around the heat exchanger, the support plate 12 at the lower end of the circular guide rail 1 can support the circular guide rail 1, thereby reducing the pressure of the first slider 7, and the ball 11 at the lower end of the support plate 12 can roll on the ground, which can reduce the friction between the support plate 12 and the ground, making it move more smoothly. At the same time, the limit frame 13 and the limit wheel 14 will limit the heat exchanger, and the limit wheel 14 will move along the outer surface of the heat exchanger. The rubber layer 15 on the surface of the limit wheel 14 can reduce damage to the outer surface of the heat exchanger.

Claims

1. A heat exchanger online descaling device, characterized in that: The invention comprises a circumferential guide rail (1), a radial guide rail (2), a descaling device body (16), an ultrasonic probe (17) and a control module (6); the circumferential guide rail (1) is provided with a circumferential slide groove (8) on the front side; the descaling device body (16) is arranged in front of the circumferential guide rail (1); two groups of left and right ultrasonic probes (17) are fixedly connected to the descaling device body (16); a fixed frame (22) is fixedly connected to the rear end of the descaling device body (16); a first ultrasonic probe (17) is fixedly installed inside the fixed frame (22); Two servo motors (19), the power output end of the second servo motor (19) is fixedly connected to a second rotating shaft, wherein the second rotating shaft is rotatably connected to a fixed frame (22), the second rotating shaft is fixedly connected to a rotating wheel (20), wherein the rotating wheel (20) is clamped in a circumferential slide groove (8), the right end of the circumferential guide rail (1) is fixedly connected to a first sliding block (7), a radial guide rail (2) is arranged on the right side of the circumferential guide rail (1), and a control module (6) is fixedly installed on the right side of the radial guide rail (2).

2. The heat exchanger online descaling device according to claim 1, characterized in that: The upper and lower ends of the fixed frame (22) are fixedly connected to the limit plates (18), wherein the upper and lower groups of limit plates (18) are located on the upper and lower sides of the circumferential guide rail (1).

3. The heat exchanger online descaling device according to claim 1, characterized in that: A ball groove is provided in the circumferential slide groove (8), and a second ball (21) is movably connected to the rear end of the rotating wheel (20), wherein the second ball (21) slides in the ball groove.

4. The heat exchanger online descaling device according to claim 1, characterized in that: A plurality of groups of limit frames (13) are bolted on the inner side of the circumferential guide rail (1), wherein the limit frames (13) are evenly distributed on the inner side of the circumferential guide rail (1).

5. The heat exchanger online descaling device according to claim 4, characterized in that: The limiting frames (13) are all rotatably connected to the limiting wheels (14), and the outer layers of the limiting wheels (14) are all fixedly connected to the rubber layers (15).

6. The heat exchanger online descaling device according to claim 1, characterized in that: One end of the circumferential guide rail (1) is fixedly connected to a first stop position (9), and the other end of the circumferential guide rail (1) is fixedly connected to a second stop position (10).

7. The heat exchanger online descaling device according to claim 6, characterized in that: The lower ends of the stop position 1 (9) and the stop position 2 (10) are fixedly connected to a support plate (12), and the lower ends of the support plate (12) are movably connected to a plurality of groups of balls 1 (11).

8. The heat exchanger online descaling device according to claim 1, characterized in that: A radial slide groove (3) is provided on the left side of the radial guide rail (2), wherein the first sliding block (7) is clamped in the radial slide groove (3).

9. The heat exchanger online descaling device according to claim 1, characterized in that: A first servo motor (4) is fixedly mounted on the front end of the radial guide rail (2), and a first threaded rod (5) is fixedly connected to the power output end of the first servo motor (4).

10. The heat exchanger online descaling device according to claim 9, characterized in that: The first threaded rod (5) is rotatably connected to the radial guide rail (2), and the first sliding block (7) is threadably connected to the first threaded rod (5).

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