Anti-fouling industrial boiler water quality on-line monitoring device

Abstract

The utility model relates to the technical field of boiler water quality monitoring, and disclose an industrial boiler water quality on -line monitoring device of anti -incrustation, including mounting bracket, the mounting bracket other side fixedly connected with the cover frame, install detection liquid storage jar in the cover frame, the bottom of detection liquid storage jar is connected with the liquid outlet pipe, the lateral wall of industrial boiler body is connected with the water outlet pipe, the end side of water outlet pipe is connected with the connecting pipe, the connecting pipe end side is connected with transparent detection test tube, install sampling detection subassembly in connecting pipe and detection liquid storage jar, install cleaning subassembly in transparent detection test tube. The utility model discloses through the automatic sampling, the detection process, realizes the normalization tracking of boiler water quality, and this kind of periodic monitoring mode can timely feedback the change trend of boiler water quality, once discovers that the water quality index appears unusual, can promote the relevant personnel to take the water quality regulation measure in advance, reduces the possibility of scale formation from the source.

Description

Technical Field

[0001] This utility model relates to the field of boiler water quality monitoring technology, specifically to an online monitoring device for industrial boiler water quality to prevent scaling. Background Technology

[0002] Industrial boilers are a general term for boilers used in industry. They can be divided into steam-type and gas-fired type. They are important thermal power equipment in industrial production processes. However, when industrial boilers are used for a long time, the water quality inside the boiler is prone to deterioration, and scale may even form inside the boiler, which will reduce the boiler's thermal utilization efficiency and cause energy loss.

[0003] If the water quality in an industrial boiler is poor, high levels of minerals such as calcium and magnesium will gradually precipitate out during long-term operation, forming hard scale on the boiler's inner wall. This scale buildup not only reduces the boiler's heat transfer efficiency and increases energy consumption, but can also lead to uneven heating, causing localized overheating and even damage, severely impacting the boiler's safety performance and lifespan. Therefore, to prevent scale formation from adversely affecting boiler performance, regular monitoring of the boiler's water quality is necessary.

[0004] Currently, traditional monitoring devices mostly rely on manual operation. From the transportation of water samples and test solutions to the discharge of waste liquid after testing and the cleaning of testing components, most operations require manual intervention. This not only increases the cost of manual operation but also reduces operational efficiency, making it difficult to meet the needs of continuous operation in industrial scenarios. Furthermore, it is difficult to achieve the synchronous and proportional transportation of boiler water samples and test solutions, requiring separate manual operation of water sample and test solution transportation. This not only easily leads to an imbalance in the mixing ratio of the two but also makes the chemical reaction conditions unstable, affecting the accuracy of the test results.

[0005] Therefore, we propose an online monitoring device for industrial boiler water quality to prevent scaling, in order to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide an online monitoring device for industrial boiler water quality to prevent scaling, thereby solving the problems mentioned in the background art where existing monitoring devices are difficult to automatically perform sampling, testing, and cleaning steps, and are difficult to control the proportions, resulting in inaccurate test results.

[0007] This utility model provides the following technical solution: an online monitoring device for water quality of industrial boilers to prevent scaling, including a mounting frame, an industrial boiler body fixed to one end of the mounting frame, a sleeve fixedly connected to the other end of the mounting frame, a detection liquid storage tank installed inside the sleeve, a liquid outlet pipe connected to the bottom of the detection liquid storage tank, a water outlet pipe connected to the side wall of the industrial boiler body, a connecting pipe connected to one end of the water outlet pipe, and a transparent test tube connected to one end of the connecting pipe, the transparent test tube being in the same vertical direction as the detection liquid storage tank; The connecting tube and the test liquid storage tank are equipped with a sampling and testing component. The transparent test tube is equipped with a cleaning component. The cleaning component includes a delivery tube connected to the side wall of the transparent test tube. A monitoring probe is installed on the delivery tube. A collection tank is placed below the transparent test tube.

[0008] Preferably, the bottom of the transparent test tube is connected to a drain pipe, and a valve is installed inside the drain pipe.

[0009] Preferably, the sampling and detection assembly includes a fixing plate fixedly connected to the side wall of the detection liquid storage tank, a motor is fixedly fixed on the fixing plate, a rotating rod is fixedly connected to the output end of the motor, a sealing plate is fixedly fixed to the end of the rotating rod, a sealing ring is fixed inside the connecting pipe, and the sealing plate and the sealing ring are rotatably connected.

[0010] Preferably, a bevel gear one is fixedly sleeved on the outer ring of the rotating rod, an L-shaped plate is fixed on the side wall of the sleeve, a rotating shaft is rotatably connected to the L-shaped plate, a bevel gear two is fixedly connected to one end of the rotating shaft, and the bevel gear one and the bevel gear two mesh with each other.

[0011] Preferably, a second sealing ring is fixed inside the liquid outlet pipe, and a second sealing plate is rotatably connected inside the second sealing ring, and the second sealing plate is fixedly connected to the rotating shaft.

[0012] Preferably, a flexible hose is connected to one end of the delivery pipe, and a one-way valve is installed at the connection between the delivery pipe and the flexible hose.

[0013] Preferably, a suction cylinder is connected to the delivery pipe, a sliding rod is slidably connected inside the suction cylinder, a piston is fixed at the bottom of the sliding rod, the piston slides in contact with the suction cylinder, the top of the sliding rod is notched, a fixing rod is fixed on the sliding rod, a second motor is fixed to the side wall of the detection liquid storage tank, a drive shaft is fixedly connected to the output end of the second motor, a turntable is fixed on the drive shaft, a connecting rod is hinged to the turntable, and the connecting rod is rotatably connected to the fixing rod.

[0014] Preferably, the bottom of the transparent test tube is connected to a drain hopper, and a valve is installed inside the drain hopper.

[0015] This utility model has the following beneficial effects: 1. This device enables the synchronous delivery of boiler water samples and test solutions, ensuring that the two are fully mixed in proportion within the transparent test tube, providing stable and consistent conditions for the chemical reaction. By utilizing the visual phenomenon of scum generated by the reaction of sodium stearate with calcium and magnesium ions, combined with real-time scanning and data transmission from the monitoring probe, the calcium and magnesium ion content in the boiler water can be accurately determined, thereby accurately assessing the water quality and providing a reliable basis for preventing boiler scaling.

[0016] 2. The device starts by transporting water samples and test solutions with motor one, then automatically opens the drain valve to discharge waste liquid after testing, and then starts motor two to automatically draw and transport cleaning solution. The entire testing and cleaning process does not require much manual intervention, which greatly reduces the cost of manual operation and improves the efficiency of operation. It is suitable for the continuous operation requirements of industrial scenarios.

[0017] 3. This device achieves routine monitoring of boiler water quality through automated sampling and testing processes. This periodic monitoring mode can promptly reflect changes in boiler water quality trends. Once abnormal water quality indicators are detected, relevant personnel can take water quality adjustment measures in advance, reducing the possibility of scale formation at the source, mitigating the adverse effects of scale on boiler heat transfer efficiency and equipment lifespan, and further strengthening the protection of industrial boilers.

[0018] 4. Through the cleaning components, this device can stably deliver the cleaning solution into the transparent test tube, thoroughly rinsing the tube and effectively removing residual boiler water and test solution. This avoids interference from residual liquids with subsequent tests, ensuring the independence and accuracy of each test result and improving the reliability of monitoring data. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention and the structure of the industrial boiler body. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention and the structure of the industrial boiler body. Figure 2 .

[0021] Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0022] Figure 4 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0023] Figure 5 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0024] In the diagram: 1. Mounting frame; 2. Industrial boiler body; 3. Sleeve; 4. Test liquid storage tank; 41. Discharge pipe; 5. Water outlet pipe; 6. Connecting pipe; 7. Transparent test tube; 71. Drainage hopper; 72. Valve; 8. Sampling and testing assembly; 81. Fixing plate; 82. Motor 1; 83. Rotating rod; 84. Sealing plate 1; 85. Sealing ring 1; 86. Bevel gear 1; 87. L-shaped plate; 88. Rotating shaft; 89. Bevel gear 2; 810. Sealing plate 2; 811. Sealing ring 2; 9. Cleaning assembly; 91. Delivery pipe; 901. Hose; 92. One-way valve; 93. Suction cylinder; 94. Sliding rod; 95. Piston; 96. Fixing rod; 97. Motor 2; 98. Drive shaft; 99. Turntable; 910. Connecting rod; 10. Monitoring probe; 11. Collection tank. Detailed Implementation

[0025] 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. Example 1:

[0026] This embodiment aims to address the problems in traditional industrial boiler water quality monitoring, such as asynchronous delivery of water samples and testing solutions leading to unstable reaction conditions, poor accuracy of test results, reliance on manual operation, low efficiency, and susceptibility to interference from residual waste liquid, thus failing to provide reliable data support for scale prevention. Please refer to [link to relevant documentation]. Figure 1 - Figure 5 An online monitoring device for preventing scaling in industrial boiler water quality includes a mounting frame 1. An industrial boiler body 2 is fixed to one end of the mounting frame 1, and a sleeve 3 is fixedly connected to the other end of the mounting frame 1. A detection liquid storage tank 4 is installed inside the sleeve 3. The tank is made of transparent polycarbonate material to facilitate observation of the remaining amount of detection liquid inside. The capacity of the detection liquid storage tank 4 is determined according to the detection frequency and the amount of detection liquid required for each detection. Generally, it can meet the detection needs for several days.

[0027] The bottom of the test liquid storage tank 4 is connected to the liquid outlet pipe 41, the side wall of the industrial boiler body 2 is connected to the water outlet pipe 5, the end of the water outlet pipe 5 is connected to the connecting pipe 6, and the end of the connecting pipe 6 is connected to the transparent test tube 7. The test tube is made of high borosilicate glass, which has good chemical stability and high temperature resistance, and is not easily corroded by the test liquid and boiler water. The scale of the test tube is clear, making it easy to observe the liquid level and reaction during the test.

[0028] The transparent test tube 7 is perpendicular to the test solution storage tank 4. A drain pipe is connected to the bottom of the transparent test tube 7, and a valve 72 is installed inside the drain pipe. A sampling and detection assembly 8 is installed in the connecting pipe 6 and the test solution storage tank 4. A cleaning assembly 9 is installed inside the transparent test tube 7. The cleaning assembly 9 includes a delivery pipe 91 connected to the side wall of the transparent test tube 7, and a monitoring probe 10 is installed on the delivery pipe 91. A collection tank 11 is placed below the transparent test tube 7 to collect the waste liquid after cleaning the transparent test tube 7. The top of the collection tank 11 has an opening corresponding to the position of the drain hopper 71 to ensure that the waste liquid can flow in smoothly.

[0029] The sampling and testing assembly 8 includes a fixing plate 81 fixedly connected to the side wall of the test liquid storage tank 4. A motor 82 is fixedly fixed on the fixing plate 81. A rotating rod 83 is fixedly connected to the output end of the motor 82. A sealing plate 84 is fixedly fixed to the end of the rotating rod 83. A sealing ring 85 is fixed inside the connecting pipe 6 to achieve a good sealing effect and prevent liquid leakage. The sealing plate 84 is rotatably connected to the sealing ring 85. The outer ring of the rotating rod 83 is fixedly sleeved with the bevel gear 86. The side wall of the sleeve 3 is fixed with the L-shaped plate 87. The rotating shaft 88 is rotatably connected to the L-shaped plate 87. One end of the rotating shaft 88 is fixedly connected with the bevel gear 89. The bevel gear 86 and the bevel gear 89 mesh with each other. The sealing ring 811 is fixed inside the liquid outlet pipe 41. The sealing plate 810 is rotatably connected inside the sealing ring 811. The sealing plate 810 is fixedly connected to the rotating shaft 88. The bottom of the transparent test tube 7 is connected to the drain hopper 71, which is a funnel-shaped structure. The drain hopper 71 is equipped with a valve 72.

[0030] In this embodiment: When it is necessary to test the water quality in the industrial boiler, motor 82 is started. Motor 82 drives the rotating rod 83 to rotate, and the rotating rod 83 simultaneously drives the sealing plate 84 to rotate. Since the sealing plate 84 is rotatably connected to the sealing ring 85, when the sealing plate 84 rotates to the point of disengaging from the sealing of the connecting pipe 6, the water in the industrial boiler body 2 flows into the transparent test tube 7 through the outlet pipe 5 and the connecting pipe 6. At the same time, the bevel gear 86 on the rotating rod 83 drives the bevel gear 89 to rotate, and the bevel gear 89 drives the rotating shaft 88 to rotate. The rotating shaft 88 then drives the sealing plate 810 to rotate, so that the sealing plate 810 releases the seal on the outlet pipe 41. The test liquid in the test liquid storage tank 4 drips into the transparent test tube 7 through the outlet pipe 41 and mixes thoroughly with the boiler water.

[0031] At this point, a chemical reaction occurs in the liquid inside the transparent test tube 7. If the calcium and magnesium ion content in the industrial boiler water is high, the sodium stearate in the test liquid will react with it, producing scum on the surface of the mixture. This indicates that the boiler water quality is poor, and continued use will easily lead to scale formation inside the boiler. If no scum is produced on the surface of the mixture, it indicates that the calcium and magnesium ion content in the boiler water is low and the water quality is good. The surface state of the mixture is scanned and monitored in real time by the monitoring probe 10, and the image data is transmitted to the control system to complete the water quality sampling and testing. After the test is completed, the valve 72 in the drain hopper 71 automatically opens, and the tested liquid is discharged into the collection tank 11 through the drain hopper 71 and the drain pipe.

[0032] Through the above settings, the synchronous delivery of water samples and test solutions is achieved, ensuring the consistency of reaction conditions and improving the accuracy of test results. The scum phenomenon generated by the chemical reaction directly reflects the water quality status. Combined with the real-time scanning and data transmission of the monitoring probe 10, the testing process is more efficient and the results are easier to interpret. Furthermore, the liquid is automatically discharged after the test, reducing manual operation, improving the automation level of the device, and avoiding interference from waste liquid residues to subsequent tests, further ensuring the accuracy of the test and providing reliable water quality data support for scale prevention in industrial boilers. Example 2:

[0033] This embodiment aims to address the problems in traditional industrial boiler water quality monitoring, such as reliance on manual cleaning of detection components, unstable cleaning fluid delivery leading to residual liquid on the inner wall of the test tube affecting the accuracy of subsequent tests, low cleaning efficiency, and inability to guarantee the cleanliness of the detection components. This embodiment is an improvement upon Embodiment 1. For details, please refer to... Figure 1 - Figure 5 An online water quality monitoring device for preventing scaling in industrial boilers includes a mounting frame 1. An industrial boiler body 2 is fixed to one end of the mounting frame 1. A water outlet pipe 5 is connected to the side wall of the industrial boiler body 2. A connecting pipe 6 is connected to one end of the water outlet pipe 5. A transparent test tube 7 is connected to one end of the connecting pipe 6. A cleaning assembly 9 is installed inside the transparent test tube 7. The cleaning assembly 9 includes a delivery pipe 91 connected to the side wall of the transparent test tube 7. A flexible hose 901 is connected to one end of the delivery pipe 91. The flexible hose 901 is made of acid and alkali resistant silicone hose, possessing good flexibility and anti-aging properties, and can be bent freely to adapt to different installation spaces. Its inner diameter matches the outer diameter of the delivery pipe 91 to ensure no leakage at the connection and facilitate the delivery of cleaning fluid. This is prior art and will not be described in detail. A one-way valve 92 is installed at the connection between the delivery pipe 91 and the hose 901 to prevent the liquid in the delivery pipe 91 from flowing back into the hose 901 and to ensure that the liquid can only flow in the direction from the hose 901 to the delivery pipe 91, so as to avoid the liquid backflow affecting the detection or cleaning process.

[0034] A suction cylinder 93 is connected to the delivery pipe 91. A slide rod 94 is slidably connected inside the suction cylinder 93. A piston 95 is fixed at the bottom of the slide rod 94. The piston 95 slides in close contact with the suction cylinder 93. The piston 95 has good elasticity and sealing performance. The outer ring of the piston 95 is tightly fitted with the inner wall of the suction cylinder 93, which can effectively prevent liquid from leaking from the gap between the piston 95 and the suction cylinder 93. The top of the slide rod 94 is notched. A fixing rod 96 is fixed on the slide rod 94. A second motor 97 is fixed on the side wall of the test liquid storage tank 4. A drive shaft 98 is fixedly connected to the output end of the second motor 97. A turntable 99 is fixed on the drive shaft 98. A connecting rod 910 is hinged on the turntable 99. The connecting rod 910 is rotatably connected to the fixing rod 96.

[0035] In this embodiment: when it is necessary to deliver cleaning fluid into the transparent test tube 7 through the delivery pipe 91, the hose 901 is first connected to the cleaning fluid storage tank (this is prior art and will not be elaborated on here). Then, the second motor 97 is started, and the second motor 97 drives the transmission shaft 98 to rotate. The transmission shaft 98 further drives the turntable 99 to rotate. Since one end of the connecting rod 910 is hinged to the turntable 99 and the other end is rotatably connected to the fixed rod 96, at this time, the rotation of the turntable 99 will drive the fixed rod 96 to move up and down through the connecting rod 910. The fixed rod 96 then synchronously drives the slide rod 94 to slide back and forth in the suction cylinder 93.

[0036] When the slide bar 94 moves upward, the piston 95 moves upward accordingly, creating a negative pressure inside the suction cylinder 93. At this time, the one-way valve 92 automatically opens, and the cleaning fluid in the hose 901 is drawn into the suction cylinder 93 under atmospheric pressure. When the slide bar 94 moves downward, the piston 95 moves downward synchronously, and the cleaning fluid in the suction cylinder 93 is squeezed. The one-way valve 92 closes accordingly, and the cleaning fluid is forced into the delivery pipe 91 and delivered to the transparent test tube 7 through the delivery pipe 91. Through the continuous operation of the motor 97, continuous suction and stable delivery of the cleaning fluid can be achieved, allowing the cleaning fluid to fully contact the inner wall of the transparent test tube 7 and thoroughly rinse the inside of the test tube.

[0037] This process not only enhances the anti-scaling effect and ensures the cleanliness of the transparent test tube 7, providing a guarantee for the smooth progress of subsequent testing work, but also effectively avoids interference from the original boiler water residue on the accuracy of subsequent data monitoring, further ensuring the reliability of the monitoring results.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An online monitoring device for industrial boiler water quality to prevent scaling, comprising a mounting frame (1), characterized in that: An industrial boiler body (2) is fixed to one end of the mounting bracket (1), and a sleeve (3) is fixedly connected to the other side of the mounting bracket (1). A test liquid storage tank (4) is installed inside the sleeve (3). A liquid outlet pipe (41) is connected to the bottom of the test liquid storage tank (4). A water outlet pipe (5) is connected to the side wall of the industrial boiler body (2). A connecting pipe (6) is connected to the end of the water outlet pipe (5). A transparent test tube (7) is connected to the end of the connecting pipe (6). The transparent test tube (7) is in the same vertical direction as the test liquid storage tank (4). The sampling and detection assembly (8) is installed in the connecting tube (6) and the detection liquid storage tank (4). The cleaning assembly (9) is installed in the transparent test tube (7). The cleaning assembly (9) includes a delivery tube (91) connected to the side wall of the transparent test tube (7). A monitoring probe (10) is installed on the delivery tube (91). A collection tank (11) is placed below the transparent test tube (7).

2. The online monitoring device for preventing scaling in industrial boiler water according to claim 1, characterized in that: The bottom of the transparent test tube (7) is connected to a drain pipe, and a valve (72) is installed inside the drain pipe.

3. The online monitoring device for preventing scaling in industrial boiler water according to claim 1, characterized in that: The sampling and detection assembly (8) includes a fixing plate (81) fixedly connected to the side wall of the detection liquid storage tank (4), a motor (82) fixedly fixed on the fixing plate (81), a rotating rod (83) fixedly connected to the output end of the motor (82), a sealing plate (84) fixedly fixed to the end of the rotating rod (83), a sealing ring (85) fixed inside the connecting pipe (6), and the sealing plate (84) and the sealing ring (85) rotatably connected.

4. The online monitoring device for preventing scaling in industrial boiler water quality according to claim 3, characterized in that: The outer ring of the rotating rod (83) is fixedly sleeved with a bevel gear (86), and the side wall of the sleeve (3) is fixed with an L-shaped plate (87). A rotating shaft (88) is rotatably connected to the L-shaped plate (87), and a bevel gear (89) is fixedly connected to one end of the rotating shaft (88). The bevel gear (86) and the bevel gear (89) mesh with each other.

5. The online monitoring device for preventing scaling in industrial boiler water according to claim 4, characterized in that: A sealing ring 2 (811) is fixed inside the liquid outlet pipe (41), and a sealing plate 2 (810) is rotatably connected inside the sealing ring 2 (811). The sealing plate 2 (810) is fixedly connected to the rotating shaft (88).

6. The online monitoring device for preventing scaling in industrial boiler water according to claim 1, characterized in that: The end of the delivery pipe (91) is connected to a hose (901), and a one-way valve (92) is installed at the connection between the delivery pipe (91) and the hose (901).

7. The online monitoring device for preventing scaling in industrial boiler water quality according to claim 6, characterized in that: The delivery pipe (91) is connected to a suction cylinder (93). A sliding rod (94) is slidably connected inside the suction cylinder (93). A piston (95) is fixed at the bottom of the sliding rod (94). The piston (95) slides in contact with the suction cylinder (93). The top of the sliding rod (94) is notched. A fixing rod (96) is fixed on the sliding rod (94). A second motor (97) is fixed on the side wall of the detection liquid storage tank (4). A transmission shaft (98) is fixedly connected to the output end of the second motor (97). A turntable (99) is fixed on the transmission shaft (98). A connecting rod (910) is hinged on the turntable (99). The connecting rod (910) is rotatably connected to the fixing rod (96).

8. The online monitoring device for preventing scaling in industrial boiler water according to claim 1, characterized in that: The bottom of the transparent test tube (7) is connected to a drain hopper (71), and a valve (72) is installed inside the drain hopper (71).

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