Water quality remote monitoring device for large heat supply system

Abstract

The invention discloses a large-scale heat supply system water quality remote monitoring device, and belongs to the technical field of water quality monitoring, the large-scale heat supply system water quality remote monitoring device comprises a shell, two ends of the shell are provided with a water inlet and a water outlet, the radial position of the shell is provided with a mounting seat, and the outer side of the mounting seat is fixedly connected with a detection disc; a plurality of detection cavities which are annularly arranged at equal intervals are formed in the detection disc; a rotatable sampling pipe is rotationally connected to the mounting seat, one end of the sampling pipe extends into the shell, the other end of the sampling pipe is communicated with a distribution pipe, and an outlet of the distribution pipe can be communicated with the detection cavity; the device further comprises a detection end of the laser detection piece, and the detection end of the laser detection piece can be aligned with the detection cavity. According to the invention, water sample collection, distribution and detection work can be automatically completed, manual intervention is not needed, the labor cost is greatly reduced, and the detection efficiency is improved. And automatic sampling detection is performed once at regular intervals, so that the dynamic change of the water quality of the heat supply system can be mastered in real time.

Description

Technical Field

[0001] The invention belongs to the technical field of water detection, and in particular relates to a remote monitoring device for water quality in a large-scale heating system. Background Art

[0002] As the scale of urban centralized heating continues to expand, large-scale heating systems are increasingly being used. The quality of water in the heating system is directly related to the service life, heating efficiency, and heating safety of the heating equipment. If the water quality is poor, impurities and minerals in the water will form dirt and corrode the heating pipes and equipment, which will not only reduce the heat exchange efficiency and increase energy consumption, but in severe cases may also cause pipe ruptures, causing heating accidents and affecting the normal lives of residents. Most of the existing water quality monitoring of heating systems relies on manual collection of water samples at regular intervals and sending them to laboratories for testing and analysis. This method not only consumes a lot of manpower, material resources and time, but also has a low detection frequency and is unable to reflect the dynamic changes in the water quality of the heating system in real time. Moreover, when the water quality is abnormal, it is difficult to detect and take effective measures in time, resulting in damage to the heating equipment and a significant increase in maintenance costs. Some automated monitoring equipment has problems such as a single detection function, a cumbersome detection process, and difficulty in achieving remote monitoring. It cannot meet the needs of large-scale heating systems for comprehensive, real-time, and accurate monitoring of water quality. Therefore, it is of great practical significance to develop a device that can realize automatic, efficient, and remote monitoring of the water quality of large-scale heating systems. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a remote monitoring device for water quality of a large-scale heating system, which has the advantages of being able to realize automatic, efficient and remote monitoring, and solves the problems of the prior art.

[0004] The present invention is achieved as follows: a remote monitoring device for water quality of a large heating system includes a shell, wherein two ends of the shell are provided with a water inlet and a water outlet, a mounting seat is provided at a radial position of the shell, a detection disk is fixedly connected to the outer side of the mounting seat, and a plurality of annular equidistantly arranged detection cavities are provided on the detection disk; a rotatable sampling tube is rotatably connected to the mounting seat, one end of the sampling tube extends to the interior of the shell, and the other end of the sampling tube is connected to a distribution tube, and the outlet of the distribution tube can be connected to the detection cavity; and also includes a detection end of a laser detection component, and the detection end of the laser detection component can be aligned with the detection cavity.

[0005] As a preferred embodiment of the present invention, a distribution hole is provided on the lower surface of the distribution tube away from the sampling tube, and the distribution hole can be connected to the detection cavity; The end of the distribution pipe is fixedly connected with a gear ring; the mounting seat is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear, and the gear is meshed with the gear ring.

[0006] As a preferred embodiment of the present invention, a solenoid valve is provided on the sampling tube or the distribution tube. When the solenoid valve is opened, water in the shell flows out through the sampling tube and the distribution tube. When the solenoid valve is closed, sampling is stopped.

[0007] As a preferred embodiment of the present invention, the lower surface of the distribution tube is in contact with the upper surface of the detection disk. When the distribution hole and the detection cavity are aligned and connected, the water in the shell flows into the detection cavity through the sampling tube and the distribution tube. When the sampling tube and the distribution tube continue to rotate, the distribution hole is in contact with the upper surface of the detection disk and is blocked, and sampling is stopped at this time.

[0008] As a preferred embodiment of the present invention, a first partition, a second partition and a third partition which are integrally connected are provided inside the shell, the first partition is located at the upper right of the water inlet, the second partition is located at the lower left of the water outlet, the third partition is aligned with the mounting seat, and the third partition is provided with a circular channel.

[0009] As a preferred embodiment of the present invention, a fixed ring is provided on the circular channel, and a sampling hole is provided on the fixed ring; a rotating ring is attached to one side of the fixed ring, and the rotating ring is provided with a sampling head, one end of the sampling head can be connected to the sampling hole, and the other end of the sampling head is connected to the sampling tube.

[0010] As a preferred embodiment of the present invention, a vertically arranged slot is provided on the side of the circular channel; a block is fixedly connected to the surface of the fixing ring, and the block is engaged in the slot.

[0011] As a preferred embodiment of the present invention, the third partition plate is provided with a mounting groove, the mounting groove is connected to the circular channel and is coaxially arranged; the outer surface of the sampling tube is provided with an external thread, and the upper side of the external thread is provided with a yield groove; the sampling tube is rotatably connected to a lifting plate via the external thread, and the lifting plate can be pressed into the mounting groove; the upper side of the lifting plate is fixedly connected to a guide rod, the guide rod is slidably connected to the mounting seat, and also includes a spring, the upper end of the spring is affixed to the mounting seat, and the lower end is affixed to the lifting plate.

[0012] As a preferred embodiment of the present invention, the laser detection element is configured as a laser particle size analyzer.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The device can automatically complete water sample collection, distribution and detection without manual intervention, which greatly reduces labor costs and improves detection efficiency. And it automatically takes samples for detection at regular intervals, which can grasp the dynamic changes of water quality in the heating system in real time. Compared with traditional detection methods, laser detection parts are used to detect water samples. It can more accurately analyze the composition and impurity content of water samples, providing reliable data support for water quality monitoring of heating systems. The signal transmission module can transmit the detection data to the remote monitoring terminal in real time. The staff can understand the water quality of the heating system without going to the site, which is convenient for timely detection of water quality abnormalities and taking treatment measures, effectively avoiding damage to heating equipment and heating accidents caused by water quality problems.

[0014] 2. Through the detection chambers arranged in annular equidistant positions, in combination with the rotatable sampling tube and distribution tube, the sequential collection and detection of multiple water samples are realized, which improves the comprehensiveness and continuity of the detection. At the same time, the overall structure of the device is compact and easy to install. It can be directly connected to the heating pipeline and is suitable for various large-scale heating systems.

[0015] 3. During the sampling operation, the sampling tube rotates in one direction, and the fixed plate is located in the give way slot. When the sampling tube rotates in the opposite direction, it can drive the lifting plate to be pressed tightly in the installation slot, thereby closing the pipe. When the water quality seriously exceeds the standard, the heating pipe can be closed in this way. It should be noted that when the water tank supplies water by gravity, it can be directly closed in this way. In the case of water pump supplying water, the water pump needs to be turned off at the same time. For example, the motor signal is connected to the water pump, and when the motor rotates in the opposite direction, it triggers the water pump to be turned off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a large-scale heating system water quality remote monitoring device provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the top view of the structure of a large-scale heating system water quality remote monitoring device provided by an embodiment of the present invention; Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the cross-sectional structure of the AA part; Figure 4 The embodiment of the present invention provides Figure 3 A schematic diagram of the enlarged structure of part B; Figure 5 The embodiment of the present invention provides Figure 3 A schematic diagram of the enlarged structure of the middle C part; Figure 6 The embodiment of the present invention provides Figure 3 A schematic diagram of the enlarged structure of the D part; Figure 7It is a side structural schematic diagram of a large-scale heating system water quality remote monitoring device provided by an embodiment of the present invention; Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the cross-sectional structure of the EE part; Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the enlarged structure of part F.

[0017] In the figure: 1. shell; 2. mounting base; 3. detection plate; 4. detection chamber; 5. sampling tube; 6. distribution tube; 7. detection end of laser detection element; 8. distribution hole; 9. gear ring; 10. motor; 11. gear; 12. first partition; 13. second partition; 14. third partition; 15. circular channel; 16. fixed ring; 17. sampling hole; 18. rotating ring; 19. sampling head; 20. slot; 21. block; 22. mounting slot; 23. clearance slot; 24. lifting plate; 25. guide rod; 26. spring. DETAILED DESCRIPTION

[0018] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0019] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 9 As shown, an embodiment of the present invention provides a remote monitoring device for water quality of a large heating system, comprising a shell 1, wherein water inlets and water outlets are provided at both ends of the shell 1, a mounting seat 2 is provided at a radial position of the shell 1, a detection disk 3 is fixedly connected to the outer side of the mounting seat 2, and a plurality of detection cavities 4 arranged equidistantly in annular shapes are provided on the detection disk 3; a rotatable sampling tube 5 is rotatably connected to the mounting seat 2, one end of the sampling tube 5 extends to the interior of the shell 1, and the other end of the sampling tube 5 is connected to a distribution tube 6, and the outlet of the distribution tube 6 can be connected to the detection cavity 4; and also includes a detection end 7 of a laser detection component, and the detection end 7 of the laser detection component can be aligned with the detection cavity 4.

[0021] When the large-scale heating system water quality remote monitoring device is in operation, the water inlet and outlet of the device shell 1 are first connected to the adjacent heating pipes through flanges, so that the water in the heating system can flow through the inside of the device shell 1. The sampling tube 5 and the distribution tube 6 rotate synchronously, and one end of the sampling tube 5 samples the flowing heating circulating water in the shell 1. After the sampling tube 5 obtains the water sample, the water sample is transmitted to the distribution tube 6, and the distribution tube 6 injects the water sample into the No. 1 detection cavity 4 on the detection disk 3. Subsequently, the sampling tube 5 and the distribution tube 6 rotate synchronously, rotate to the position of the No. 2 detection cavity 4, and continue to inject water into the No. 2 detection cavity 4. In the process of the distribution tube 6 and the sampling tube 5 rotating to the No. 2 detection cavity 4, the detection end 7 of the laser detection component is just aligned with the No. 1 detection cavity 4 into which the water sample has been injected, and the laser detection component emits a laser to detect the water sample in the No. 1 detection cavity 4, and analyzes the water quality parameters such as the composition and impurity content of the water sample. At the same time, the signal transmission module in the detection device transmits the detection data obtained by the laser detection component to the remote monitoring terminal in real time. If the test data exceeds the preset water quality standard range, the alarm module will immediately send out an alarm signal to remind staff to take corresponding measures in time.

[0022] Exemplarily, the scheme for driving the distribution tube 6 and the sampling tube 5 to rotate automatically is: A distribution hole 8 is provided on the lower surface of the distribution tube 6 away from the sampling tube 5, and the distribution hole 8 can be connected to the detection chamber 4; a gear ring 9 is fixedly connected to the end of the distribution tube 6; a motor 10 is fixedly connected to the mounting seat 2, and a gear 11 is fixedly connected to the output end of the motor 10, and the gear 11 is meshed with the gear ring 9.

[0023] Further, the schemes for controlling the opening and closing of sampling include the following: First, a solenoid valve is provided on the sampling tube 5 or the distribution tube 6. When the solenoid valve is opened, the water in the housing 1 will automatically flow out through the sampling tube 5 and the distribution tube 6 due to the pressure. When the solenoid valve is closed, sampling stops.

[0024] Second, the lower surface of the distribution tube 6 is in contact with the upper surface of the detection disk 3. When the distribution hole 8 is aligned with and connected to the detection cavity 4, the water in the housing 1 has pressure and will automatically flow into the detection cavity 4 through the sampling tube 5 and the distribution tube 6. When the sampling tube 5 and the distribution tube 6 continue to rotate, the distribution hole 8 is in contact with the upper surface of the detection disk 3 and is blocked, and sampling will not occur at this time.

[0025] Third, through the following settings: The housing 1 is provided with a first baffle 12, a second baffle 13 and a third baffle 14 which are integrally connected. The first baffle 12 is located at the upper right of the water inlet, the second baffle 13 is located at the lower left of the water outlet, the third baffle 14 is aligned with the mounting seat 2, and the third baffle 14 is provided with a circular channel 15. A fixing ring 16 is provided on the circular channel 15, and a sampling hole 17 is provided on the fixing ring 16; a rotating ring 18 is attached to one side of the fixing ring 16, and a sampling head 19 is provided on the rotating ring 18, one end of the sampling head 19 can be connected to the sampling hole 17, and the other end of the sampling head 19 is connected to the sampling tube 5, for example, connected to the sampling tube 5 through a hose.

[0026] The setup works as follows: Device installation and water flow guidance: The large-scale heating system water quality remote monitoring device is connected to the heating pipe through the water inlet and water outlet at both ends of the shell 1 in a flange connection. The water flow in the heating system enters the device shell 1 from the water inlet. Since the first partition 12 is located at the upper right of the water inlet, the water flow changes its direction under the blocking and guidance of the first partition 12 and flows downward inside the device. In the process of flowing through the inside of the device, the water flow to be sampled for water quality monitoring is completed, providing a continuous and stable water source for subsequent sampling operations. When the water flow reaches the bottom of the device, it is blocked by the second partition 13. The second partition 13 is located at the lower left of the water outlet, guiding the water flow to flow upward (through the circular channel 15), and finally flows out of the water outlet and returns to the heating pipe system. Sampling preparation and initial state: Inside the device housing 1, the third partition plate 14 is provided with a circular channel 15, and the fixed ring 16 is installed on the circular channel 15. The fixed ring 16 is provided with a sampling hole 17. The rotating ring 18 is attached to one side of the fixed ring 16, and one end of the sampling head 19 on the rotating ring 18 can be connected to the sampling hole 17, and the other end is connected to the sampling tube 5. When the device starts to run, the initial position needs to ensure that the sampling tube 5 drives the sampling head 19 on the rotating ring 18 to align with the sampling hole 17 of the fixed ring 16, and it is ready for sampling.

[0027] Sampling process: Under the water pressure of the heating system, the water in the housing 1 enters the sampling head 19 through the sampling hole 17 on the fixed ring 16, and further flows into the sampling tube 5. Subsequently, the sampling tube 5 starts to rotate, driving the rotating ring 18 and the sampling head 19 to rotate synchronously. During the rotation process, the lower end of the sampling head 19 always fits the upper surface of the fixed ring 16, thereby preventing the water from entering the sampling head 19. When the sampling head 19 rotates with the rotating ring 18 to align with the sampling hole 17 on the fixed ring 16 again, due to the continuous water pressure of the heating system, the water will enter the sampling tube 5 through the sampling hole 17 and the sampling head 19, completing a new sampling operation. At the same time, the distribution pipe 6 connected to the other end of the sampling tube 5 injects the water sample obtained from the sampling tube 5 into the detection cavity 4 on the detection disk 3 in sequence. The distribution pipe 6 and the sampling tube 5 continue to rotate, injecting the water sample into the next detection cavity 4 in sequence, and the laser detection component detects the water sample in each detection cavity 4 in sequence, and sends the detection data through the signal transmission module. Through the above steps, the remote monitoring device for water quality of large-scale heating systems can automatically and periodically collect water samples during the operation of the heating system, meeting the requirements for real-time and continuous monitoring of the water quality of the heating system.

[0028] Furthermore, a vertically arranged slot 20 is formed on the side of the circular channel 15 ; a block 21 is fixedly connected to the surface of the fixing ring 16 , and the block 21 is engaged in the slot 20 .

[0029] In the actual use and maintenance scenarios of the remote monitoring device for water quality in large heating systems, the convenient disassembly and assembly functions can effectively improve the equipment maintenance efficiency and reduce the operation and maintenance costs. In terms of structural design, this device achieves this goal through the cooperation of the circular channel 15 slot 20 and the fixing ring 16 block 21, as well as the bolt connection method of the mounting base 2, as follows: 1. Principle of convenient disassembly of device Connection between the circular channel 15 and the fixing ring 16: The vertically arranged slot 20 on the side of the circular channel 15 is precisely engaged with the block 21 on the surface of the fixing ring 16. This design ensures the stability of the fixing ring 16 during the operation of the device and prevents it from shaking at will, which affects the water sample collection. When it is necessary to disassemble, only external force is applied to the fixing ring 16 along the vertical direction of the slot 20 to make the block 21 separate from the slot 20, so as to realize the rapid disassembly of the fixing ring 16. Connection of the mounting base 2: The mounting base 2 is connected by bolts, and the bolts firmly fix the mounting base 2 on the device body. When disassembling, use the matching tools to unscrew the bolts, and the mounting base 2 can be separated from the device body. Since the fixed ring 16 and the rotating ring 18 are installed on the mounting base 2, the disassembly of the mounting base 2 allows the fixed ring 16 and the rotating ring 18 to be disassembled together, which greatly facilitates the maintenance and replacement of these components. 2. Specific disassembly implementation steps Step 1: Disconnect external connections: Before disassembling the device, first ensure that the heating system has stopped running and disconnect the water inlet and outlet of the device from the heating pipe, such as removing the bolts of the flange connection to separate the device from the heating pipe. Step 2: Disassemble the mounting base 2: Use the corresponding bolt removal tool, such as a wrench, to unscrew the connecting bolts on the mounting base 2. When tightening the bolts, pay attention to loosening them in diagonal order to avoid deformation of the mounting base 2 due to uneven force. After all the bolts are unscrewed, remove the mounting base 2 from the device body, and the fixing ring 16 and the rotating ring 18 are removed together with the mounting base 2. Step 3: Separate the fixed ring 16: Apply vertical force to the fixed ring 16 to move the block 21 upward along the slot 20 until the block 21 is completely separated from the slot 20, and separate the fixed ring 16 from the circular channel 15. The fixed ring 16, the rotating ring 18 and related components can be inspected, repaired or replaced. 3. Principle and implementation of convenient assembly of the device The assembly process is the reverse operation of the disassembly process. During assembly, first align the block 21 of the fixed ring 16 with the slot 20 of the circular channel 15, and slowly move downward along the slot 20 vertically so that the block 21 is inserted into the slot 20 to complete the installation of the fixed ring 16. Next, align the mounting seat 2 together with the fixed ring 16 and the rotating ring 18 with the installation position of the device body, use bolts to fix the mounting seat 2 on the device body, and tighten the bolts in diagonal order to ensure that the mounting seat 2 is firmly installed. Finally, connect the water inlet and outlet of the device to the heating pipe through flanges to complete the assembly of the entire device and restore it to a normal operating state. Through the above design, this large-scale heating system water quality remote monitoring device not only ensures the stable operation of the monitoring function, but also improves the convenience of equipment maintenance.

[0030] Furthermore, the third partition plate 14 is provided with a mounting groove 22, and the mounting groove 22 is connected to the circular channel 15 and is coaxially arranged; the outer surface of the sampling tube 5 is provided with an external thread, and the upper side of the external thread is provided with a yield groove 23; the sampling tube 5 is rotatably connected to a lifting plate 24 through the external thread, and the lifting plate 24 can be pressed into the mounting groove 22; the upper side of the lifting plate 24 is fixedly connected to a guide rod 25, and the guide rod 25 is slidably connected to the mounting seat 2, and also includes a spring 26, the upper end of the spring 26 is attached to the mounting seat 2, and the lower end is attached to the lifting plate 24.

[0031] The specific usage process is as follows: 1. Conventional rotation sampling of sampling tube 5: When the device performs water quality sampling operation normally, the sampling tube 5 rotates in a specific direction. At this time, the fixed plate in the installation groove 22 will enter the clearance groove 23 on the upper side of the external thread of the sampling tube 5. Since the fixed plate is located in the clearance groove 23, it will not hinder the rotation of the sampling tube 5, and the sampling tube 5 can rotate smoothly, driving the rotating ring 18 and the sampling head 19 to operate synchronously to complete the water sample collection work. In this process, the lifting plate 24 will not be subjected to the axial force from the sampling tube 5, and its position remains relatively stable. The water in the heating pipe continues to flow normally, ensuring that the device continuously monitors the water quality of the heating system. 2. Pipeline Closure Mechanism When Water Quality Exceeds Standards Water tank gravity water supply situation: When the laser detection component detects that the water quality seriously exceeds the standard, the control unit will issue a command to make the sampling tube 5 rotate in the opposite direction. As the sampling tube 5 rotates in the opposite direction, the external thread interacts with the lifting plate 24. Since the guide rod 25 guides and restricts the lifting plate 24, the lifting plate 24 cannot rotate with the sampling tube 5, but moves downward along the axial direction of the sampling tube 5. In this process, the lifting plate 24 is gradually pressed against the installation groove 22 until the flow of water in the heating pipe is completely blocked, thereby realizing the closure of the heating pipe and preventing the excessive water quality from continuing to circulate in the heating system. Water pump water supply situation: Similarly, when it is detected that the water quality seriously exceeds the standard, the sampling tube 5 rotates in the opposite direction, driving the lifting plate 24 to move upward and press the mounting groove 22. At the same time, the motor 10 receives the reverse rotation command issued by the control unit. Since the motor 10 is connected to the water pump signal, the reverse rotation of the motor 10 will trigger the operation of shutting down the water pump. On the one hand, the lifting plate 24 blocks the flow of water in the pipeline; on the other hand, the water pump stops supplying water. This two-pronged approach effectively prevents the spread of excessive water quality in the heating system and reduces the risk of damage to the heating equipment and the entire system due to water quality problems. The entire working process relies on the device's ingenious mechanical structure design and the coordinated cooperation between its components, achieving precise control of the heating pipeline based on water quality monitoring results, ensuring the safe and stable operation of the heating system.

[0032] Exemplarily, the laser detection element is configured as a laser particle size analyzer for detecting particles such as rust.

[0033] Working principle of the present invention: When in use, first, the water inlet and outlet of the device housing 1 are connected to the adjacent heating pipes through flanges, so that the water in the heating system can flow through the inside of the device housing 1. The sampling tube 5 and the distribution tube 6 rotate synchronously, and one end of the sampling tube 5 samples the flowing heating circulating water in the housing 1. After the sampling tube 5 obtains the water sample, the water sample is transmitted to the distribution tube 6, and the distribution tube 6 injects the water sample into the No. 1 detection cavity 4 on the detection disk 3. Subsequently, the sampling tube 5 and the distribution tube 6 rotate synchronously, rotate to the position of the No. 2 detection cavity 4, and continue to inject water into the No. 2 detection cavity 4. In the process of the distribution tube 6 and the sampling tube 5 rotating to the No. 2 detection cavity 4, the detection end 7 of the laser detection component is just aligned with the No. 1 detection cavity 4 into which the water sample has been injected, and the laser detection component emits a laser to detect the water sample in the No. 1 detection cavity 4, and analyzes the water quality parameters such as the composition and impurity content of the water sample. At the same time, the signal transmission module in the detection device transmits the detection data obtained by the laser detection component to the remote monitoring terminal in real time. If the test data exceeds the preset water quality standard range, the alarm module will immediately send out an alarm signal to remind staff to take corresponding measures in time.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remote monitoring device for water quality in a large heating system, characterized in that: It comprises a shell (1), wherein two ends of the shell (1) are provided with a water inlet and a water outlet, a mounting seat (2) is provided at a radial position of the shell (1), a detection disk (3) is fixedly connected to the outer side of the mounting seat (2), and a plurality of detection cavities (4) are provided on the detection disk (3) at equal intervals in an annular manner; A rotatable sampling tube (5) is rotatably connected to the mounting seat (2), one end of the sampling tube (5) extends into the interior of the housing (1), the other end of the sampling tube (5) is connected to a distribution tube (6), and the outlet of the distribution tube (6) can be connected to the detection chamber (4); It also comprises a detection end (7) of a laser detection component, wherein the detection end (7) of the laser detection component can be aligned with the detection cavity (4).

2. A large-scale heating system water quality remote monitoring device as claimed in claim 1, characterized in that: A distribution hole (8) is provided on the lower surface of the distribution tube (6) at a side away from the sampling tube (5), and the distribution hole (8) can be communicated with the detection chamber (4); The end of the distribution pipe (6) is fixedly connected to a toothed ring (9); the mounting seat (2) is fixedly connected to a motor (10); the output end of the motor (10) is fixedly connected to a gear (11); the gear (11) is meshed with the toothed ring (9).

3. A large-scale heating system water quality remote monitoring device as claimed in claim 1, characterized in that: The sampling tube (5) or the distribution tube (6) is provided with a solenoid valve. When the solenoid valve is opened, water in the housing (1) flows out through the sampling tube (5) and the distribution tube (6). When the solenoid valve is closed, sampling stops.

4. A large-scale heating system water quality remote monitoring device as claimed in claim 1, characterized in that: The lower surface of the distribution tube (6) is in contact with the upper surface of the detection disk (3). When the distribution hole (8) and the detection chamber (4) are aligned and connected, water in the housing (1) flows into the detection chamber (4) through the sampling tube (5) and the distribution tube (6). When the sampling tube (5) and the distribution tube (6) continue to rotate, the distribution hole (8) is in contact with the upper surface of the detection disk (3) and is blocked, and sampling is stopped at this time.

5. A large-scale heating system water quality remote monitoring device as claimed in claim 1, characterized in that: The shell (1) is provided with a first baffle (12), a second baffle (13) and a third baffle (14) which are integrally connected, the first baffle (12) being located at the upper right of the water inlet, the second baffle (13) being located at the lower left of the water outlet, the third baffle (14) being aligned with the mounting seat (2), and the third baffle (14) being provided with a circular channel (15).

6. A large-scale heating system water quality remote monitoring device as claimed in claim 5, characterized in that: The circular channel (15) is provided with a fixing ring (16), and the fixing ring (16) is provided with a sampling hole (17); A rotating ring (18) is attached to one side of the fixed ring (16), and the rotating ring (18) is provided with a sampling head (19). One end of the sampling head (19) can be connected to the sampling hole (17), and the other end of the sampling head (19) is connected to the sampling tube (5).

7. A large-scale heating system water quality remote monitoring device as claimed in claim 6, characterized in that: A vertically arranged slot (20) is provided on the side of the circular channel (15); a clamping block (21) is fixedly connected to the surface of the fixing ring (16), and the clamping block (21) is clamped in the slot (20).

8. A large-scale heating system water quality remote monitoring device as claimed in claim 7, characterized in that: The third partition plate (14) is provided with a mounting groove (22), and the mounting groove (22) and the circular channel (15) are connected and coaxially arranged; The outer surface of the sampling tube (5) is provided with an external thread, and the upper side of the external thread is provided with a clearance groove (23); The sampling tube (5) is rotatably connected to a lifting plate (24) via an external thread, and the lifting plate (24) can be pressed tightly into the mounting groove (22); A guide rod (25) is fixedly connected to the upper side of the lifting plate (24), and the guide rod (25) is slidably connected to the mounting seat (2). The guide rod (25) also includes a spring (26), and the upper end of the spring (26) is in contact with the mounting seat (2), and the lower end is in contact with the lifting plate (24).

9. A large-scale heating system water quality remote monitoring device as claimed in claim 1, characterized in that: The laser detection component is configured as a laser particle size analyzer.

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