Boiler water quality on-line monitoring system

Abstract

The utility model relates to the technical field of boiler water quality on-line monitoring, and discloses a boiler water quality on-line monitoring system which comprises a boiler, a water quality monitoring tank is arranged on the right side of the boiler, a first water suction pump is arranged between the water quality monitoring tank and the boiler, and a left conveying pipe is arranged between the first water suction pump and the boiler in a communicating mode. A communicating pipe is arranged between the first water suction pump and the water quality monitoring tank in a communicating mode, a second water suction pump is arranged on the right side of the boiler, a right conveying pipe is arranged between the second water suction pump and the water quality monitoring tank in a communicating mode, an external water pipe is arranged on the other side of the second water suction pump, and an infrared liquid level sensor is arranged above the left side of the water quality monitoring tank. And meanwhile, a lower motor drives a stirring frame to stir water in the water quality monitoring tank, so that the detection effect of the water quality in the water quality monitoring tank is better, and the water quality can be known more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of on-line monitoring of boiler water quality, in particular to an on-line monitoring system for boiler water quality. Background Technique

[0002] A boiler is an energy conversion device. The energy input into the boiler includes the chemical energy in fuel, electric energy, and the boiler outputs steam with a certain heat energy, high-temperature water or organic heat carrier. The original meaning of "pot" refers to a water container heated on fire, and "furnace" refers to a place where fuel is burned. A boiler includes two main parts: a pot and a furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or further converted into electric energy through a generator. A boiler that provides hot water is called a hot water boiler, which is mainly used for life and has a small amount of application in industrial production. A boiler that generates steam is called a steam boiler, often simply referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises.

[0003] When a boiler is in use, water quality management is required to ensure the safe and economical operation of the boiler. However, not all enterprises using boilers have the ability of water quality management. When the customer's water quality management is relatively poor, the safe and economical operation of the boiler cannot be guaranteed.

[0004] In view of this, this technical solution proposes an on-line monitoring system for boiler water quality to facilitate better solving the above-mentioned problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide an on-line monitoring system for boiler water quality in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the utility model is as follows: an on-line monitoring system for boiler water quality, including a boiler, a water quality monitoring tank is placed on the right side of the boiler, and a first water pump is arranged between the water quality monitoring tank and the boiler. A left conveying pipe is communicated between the first water pump and the boiler, a communicating pipe is communicated between the first water pump and the water quality monitoring tank, a second water pump is arranged on the right side of the boiler, and a right conveying pipe is communicated between the second water pump and the water quality monitoring tank. An external water pipe is arranged on the other side of the second water pump;

[0007] An infrared liquid level sensor is arranged above the left side of the water quality monitoring tank, a lower motor is fixed at the bottom of the water quality monitoring tank, and the output end main shaft of the lower motor is rotatably installed inside the water quality monitoring tank. A stirring frame is inserted into the water quality monitoring tank, and the stirring frame is connected to the output end main shaft of the lower motor;

[0008] A tank cover is installed on the top of the water quality monitoring tank, and a lead screw is rotatably installed inside the tank cover. A top motor is fixed on the top of the tank cover, and the output end of the top motor is connected to the lead screw. A moving hole plate is threadedly connected to the lead screw and is inserted into the water quality monitoring tank. Guide rods are fixed on both sides of the bottom of the tank cover and are movably inserted into the moving hole plate. A water quality sensor is arranged on the left side inside the moving hole plate. A wiring seat is fixed on the left side inside the tank cover, and a waterproof connecting wire is connected between the wiring seat and the water quality sensor.

[0009] In a preferred embodiment, the stirring frame is of a U-shaped structure.

[0010] In a preferred embodiment, the water quality monitoring tank and the tank cover are installed around by bolts, and a sealing ring for sealing the tank cover is provided on the top of the water quality monitoring tank.

[0011] In a preferred embodiment, a threaded hole and a limiting hole are formed inside the moving hole plate. The threaded hole is adapted to the lead screw, and the limiting hole is adapted to the guide rod.

[0012] In a preferred embodiment, the moving hole plate is located inside the stirring frame, and a plurality of through holes are formed inside the moving hole plate.

[0013] In a preferred embodiment, the lead screw and the guide rod have the same length, and the lengths of the lead screw and the guide rod are less than the length of the vertical section of the stirring frame.

[0014] In a preferred embodiment, the wiring seat is electrically connected to an external power supply, and the first water pump, the second water pump, the lower motor, the upper motor, and the water quality sensor are connected to an external cloud server through wires to form a circuit.

[0015] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows: it is convenient to better perform on-line monitoring of the water quality at different positions inside the water quality monitoring tank. At the same time, the lower motor drives the stirring frame to stir the water inside the water quality monitoring tank, so that the water quality detection effect inside the water quality monitoring tank is better, and the water quality can be understood more accurately.

[0016] 1. In the present utility model, through the cooperation of the second water pump's right delivery pipe and the external water pipe, water can be transported into the water quality monitoring tank. When the infrared liquid level sensor detects the water level, the second water pump can stop supplying water at this time.

[0017] 2. In the present utility model, start the lower motor, the upper motor and the water quality sensor. At this time, the lower motor drives the stirring frame to stir the water inside the water quality monitoring tank. At the same time, the upper motor drives the screw rod to rotate, so that the moving hole plate drives the water quality sensor to adjust the up and down position, and the water quality at different positions inside the water quality monitoring tank can be detected. When the water quality inside the water quality monitoring tank is qualified, the water quality sensor will send a signal to the external cloud server, and the external cloud server controls the start of the first water pump. Then, through the cooperation of the connecting pipe and the left conveying pipe, the water can be conveyed to the inside of the boiler for use. If the water quality inside the water quality monitoring tank is unqualified, the water quality sensor can send a signal to the external cloud server, and the water inside the water quality monitoring tank can be further processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a schematic structural diagram of the water quality monitoring tank of the present utility model;

[0020] Figure 3 For the present utility model Figure 1 is an enlarged schematic diagram of the structure of area A.

[0021] Reference numerals in the figures: 1 - boiler; 2 - water quality monitoring tank; 3 - first water pump; 4 - left conveying pipe; 5 - connecting pipe; 6 - second water pump; 7 - right conveying pipe; 8 - external water pipe; 9 - infrared liquid level sensor; 10 - lower motor; 11 - stirring frame; 12 - tank cover; 13 - screw rod; 14 - upper motor; 15 - moving hole plate; 16 - guide rod; 17 - water quality sensor; 18 - terminal block; 19 - waterproof connecting wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0023] The following will be combined with Figures 1 - 3 to give a detailed description of an on-line boiler water quality monitoring system according to an embodiment of the present utility model.

[0024] Refer to Figures 1 - 2As shown in the figure, an on-line boiler water quality monitoring system includes a boiler 1. A water quality monitoring tank 2 is placed on the right side of the boiler 1. A first water pump 3 is arranged between the water quality monitoring tank 2 and the boiler 1. A left delivery pipe 4 is connected between the first water pump 3 and the boiler 1 in a communicating way. A communicating pipe 5 is connected between the first water pump 3 and the water quality monitoring tank 2 in a communicating way. A second water pump 6 is arranged on the right side of the boiler 1. A right delivery pipe 7 is connected between the second water pump 6 and the water quality monitoring tank 2 in a communicating way. An external water pipe 8 is arranged on the other side of the second water pump 6.

[0025] Through the cooperation of the second water pump 6, the right delivery pipe 7 and the external water pipe 8, water can be delivered into the interior of the water quality monitoring tank 2. When the infrared liquid level sensor 9 detects the water level, the second water pump 6 can stop supplying water at this time.

[0026] Reference Figures 1 - 2 As shown in the figure, an infrared liquid level sensor 9 is arranged above the left side of the water quality monitoring tank 2. A lower motor 10 is fixed at the bottom of the water quality monitoring tank 2. The output end main shaft of the lower motor 10 is rotatably installed inside the water quality monitoring tank 2. A stirring frame 11 is inserted inside the water quality monitoring tank 2. The stirring frame 11 is connected with the output end main shaft of the lower motor 10. The stirring frame 11 is of a U-shaped structure.

[0027] The lower motor 10 can drive the stirring frame 11 to rotate. At this time, the stirring frame 11 can stir and mix the water inside the water quality monitoring tank 2, which is convenient for more accurately detecting the water quality inside the water quality monitoring tank 2.

[0028] Reference Figures 1 - 3 As shown in the figure, a tank cover 12 is installed on the top of the water quality monitoring tank 2. The water quality monitoring tank 2 and the periphery of the tank cover 12 are installed by bolts. And there is a sealing ring for sealing the tank cover 12 on the top of the water quality monitoring tank 2. A lead screw 13 is rotatably installed inside the tank cover 12. An upper motor 14 is fixed on the top of the tank cover 12. The output end of the upper motor 14 is connected with the lead screw 13. A moving hole plate 15 is threadedly connected to the lead screw 13. The moving hole plate 15 is inserted into the water quality monitoring tank 2. The moving hole plate 15 is located inside the stirring frame 11. And a number of through holes are opened inside the moving hole plate 15. Two guide rods 16 are fixed on both sides of the bottom of the tank cover 12. The guide rods 16 are movably inserted into the moving hole plate 15. Threaded holes and limiting holes are opened inside the moving hole plate 15. The threaded holes are adapted to the lead screw 13. The limiting holes are adapted to the guide rods 16. The lead screw 13 and the guide rods 16 are of the same length. And the length of the lead screw 13 and the guide rods 16 is less than the length of the vertical section of the stirring frame 11. A water quality sensor 17 is arranged on the left side inside the moving hole plate 15. The first water pump 3, the second water pump 6, the lower motor 10, the upper motor 14 and the water quality sensor 17 are connected to an external cloud server through wires to form a circuit. A wiring seat 18 is fixed on the left side inside the tank cover 12. The wiring seat 18 is electrically connected to an external power supply. A waterproof connecting wire 19 is connected between the wiring seat 18 and the water quality sensor 17.

[0029] Start the lower motor 10, the upper motor 14 and the water quality sensor 17. At this time, the lower motor 10 drives the stirring frame 11 to stir the water inside the water quality monitoring tank 2. At the same time, the upper motor 14 drives the screw rod 13 to rotate, so that the moving hole plate 15 drives the water quality sensor 17 to adjust its vertical position, and then the water quality at different positions inside the water quality monitoring tank 2 can be detected. When the water quality inside the water quality monitoring tank 2 is qualified, the water quality sensor 17 will send a signal to the external cloud server, and the external cloud server controls the start of the first water pump 3. Then, through the cooperation of the connecting pipe 5 and the left conveying pipe 4, the water can be conveyed into the boiler 1 for use. If the water quality inside the water quality monitoring tank 2 is unqualified, the water quality sensor 17 can send a signal to the external cloud server, and then the water inside the water quality monitoring tank 2 can be further processed.

[0030] Advantages of this application: It is convenient to better conduct on-line monitoring of the water quality at different positions inside the water quality monitoring tank 2. At the same time, the lower motor 10 drives the stirring frame 11 to stir the water inside the water quality monitoring tank 2, making the water quality detection effect inside the water quality monitoring tank 2 better and understanding the water quality more accurately.

[0031] Working principle: Through the cooperation of the second water pump 6, the right conveying pipe 7 and the external water pipe 8, the water can be conveyed into the water quality monitoring tank 2. When the infrared liquid level sensor 9 detects the water level, the second water pump 6 can stop supplying water at this time.

[0032] When detecting the water quality inside the water quality monitoring tank 2, start the lower motor 10, the upper motor 14 and the water quality sensor 17. At this time, the lower motor 10 drives the stirring frame 11 to stir the water inside the water quality monitoring tank 2. At the same time, the upper motor 14 drives the screw rod 13 to rotate, so that the moving hole plate 15 drives the water quality sensor 17 to adjust its vertical position, and then the water quality at different positions inside the water quality monitoring tank 2 can be detected. When the water quality inside the water quality monitoring tank 2 is qualified, the water quality sensor 17 will send a signal to the external cloud server, and the external cloud server controls the start of the first water pump 3. Then, through the cooperation of the connecting pipe 5 and the left conveying pipe 4, the water can be conveyed into the boiler 1 for use. If the water quality inside the water quality monitoring tank 2 is unqualified, the water quality sensor 17 can send a signal to the external cloud server, and then the water inside the water quality monitoring tank 2 can be further processed.

[0033] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. An on-line boiler water quality monitoring system, comprising a boiler (1), characterized in that: A water quality monitoring tank (2) is placed on the right side of the boiler (1), and a first water pump (3) is arranged between the water quality monitoring tank (2) and the boiler (1). A left delivery pipe (4) is connected and arranged between the first water pump (3) and the boiler (1). A connecting pipe (5) is connected and arranged between the first water pump (3) and the water quality monitoring tank (2). A second water pump (6) is arranged on the right side of the boiler (1), and a right delivery pipe (7) is connected and arranged between the second water pump (6) and the water quality monitoring tank (2). An external water pipe (8) is arranged on the other side of the second water pump (6). An infrared liquid level sensor (9) is arranged above the left side of the water quality monitoring tank (2). A lower motor (10) is fixed at the bottom of the water quality monitoring tank (2), and the output end main shaft of the lower motor (10) is rotatably installed inside the water quality monitoring tank (2). A stirring frame (11) is inserted inside the water quality monitoring tank (2), and the stirring frame (11) is connected to the output end main shaft of the lower motor (10). A tank cover (12) is installed on the top of the water quality monitoring tank (2), and a lead screw (13) is rotatably installed inside the tank cover (12). An upper motor (14) is fixed on the top of the tank cover (12), and the output end of the upper motor (14) is connected to the lead screw (13). A moving hole plate (15) is threadedly connected to the lead screw (13), and the moving hole plate (15) is inserted into the water quality monitoring tank (2). Guide rods (16) are fixed on both sides of the bottom of the tank cover (12), and the guide rods (16) are movably inserted into the moving hole plate (15). A water quality sensor (17) is arranged on the left side inside the moving hole plate (15). A wiring seat (18) is fixed on the left side inside the tank cover (12), and a waterproof connecting wire (19) is connected between the wiring seat (18) and the water quality sensor (17).

2. The on-line boiler water quality monitoring system according to claim 1, characterized in that: The stirring frame (11) is of a U-shaped structure.

3. An on-line boiler water quality monitoring system as claimed in claim 1, characterized in that: The water quality monitoring tank (2) and the tank cover (12) are installed around by bolts, and a sealing ring for sealing the tank cover (12) is provided on the top of the water quality monitoring tank (2).

4. An on-line boiler water quality monitoring system according to claim 1, characterized in that: Threaded holes and limit holes are formed inside the moving hole plate (15). The threaded holes are adapted to the lead screw (13), and the limit holes are adapted to the guide rods (16).

5. The on-line boiler water quality monitoring system according to claim 4, wherein: The moving hole plate (15) is located inside the stirring frame (11), and a number of through holes are formed inside the moving hole plate (15).

6. The on-line boiler water quality monitoring system according to claim 4, wherein: The lead screw (13) and the guide rods (16) are of the same length, and the lengths of the lead screw (13) and the guide rods (16) are less than the length of the vertical cross-section of the stirring frame (11).

7. The on-line boiler water quality monitoring system according to claim 1, characterized in that: The wiring seat (18) is electrically connected to an external power supply. The first water pump (3), the second water pump (6), the lower motor (10), the upper motor (14) and the water quality sensor (17) are connected to an external cloud server through wires to form a circuit.

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