CN219320270U - Boiler water quality monitoring device based on Internet of Things - Google Patents

Abstract

The utility model discloses a boiler water quality monitoring device based on the Internet of things, which belongs to the technical field of boiler water quality on-line monitoring and comprises an integrated cabinet, a cooling device, a cleaning system, a server and a PLC (programmable logic controller); the integrated cabinet is internally provided with a total hardness analyzer, a total alkalinity analyzer, a trace oxygen analyzer, a chloride ion detector, a conductivity detector and a PH value detector; a second water inlet valve is arranged on the water inlet pipe of each detection box; each detection box is provided with a water outlet pipe, and the water outlet pipes are collected and then discharged from a water outlet of the integrated cabinet; according to the cleaning system, the water inlet pipe in the whole device and the detection box of the detection instrument are subjected to periodic scale removal, so that the cleaning of the pipeline and the detection box is ensured, and the accuracy of a water quality monitoring result is ensured; the temperature reducing device is used for firstly reducing the temperature of the water to be detected, so that the damage of boiling water in the boiler to the detecting instrument is avoided, and the service life is prolonged.

Description

Boiler water quality monitoring device based on Internet of Things

technical field

The utility model belongs to the technical field of boiler water quality online monitoring, in particular to a boiler water quality monitoring device based on the Internet of Things.

Background technique

In recent years, under the background of insufficient global resource supply and advocacy of low-carbon energy conservation, minimizing the operating costs of various steam boilers is an important measure to improve the economic and environmental benefits of enterprises. On-line monitoring of boiler feed water or boiler water is an important step in reducing energy costs in any installation of steam boilers.

Boiler water quality monitoring is mainly to conduct online monitoring of indicators such as conductivity, pH value, dissolved oxygen, hardness, turbidity, and total alkalinity. If any relevant indicators exceed the limit, it will actively alarm and remind. There is an integrated boiler water quality online monitoring system in the prior art, such as the Flumsys 30MT boiler water quality online monitoring system launched by JENSPRIMA, and users can select measurement parameters according to site requirements. The whole system integrates various detectors into a box and then relies on Internet technology to realize real-time monitoring, online display and query.

However, there are deficiencies in the existing boiler water quality monitoring system: 1. Boiler water quality monitoring is different from other occasions. The water entering the monitoring system is boiling water at 100°C and above, and it directly enters the detector without cooling. Over time, various parts will be detected instrument causing damage. 2. The water inlet pipe connecting the monitoring system and the boiler will accumulate scale inside after long-term use. If it is not cleaned, it will not only block the water flow but also affect the test results after a long time. 3. The water entering the monitoring system needs to be temporarily stored in the detection box. If the detection box is not cleaned regularly after multiple tests, the test results will also be affected.

Utility model content

Technical solution: In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is as follows:

A boiler water quality monitoring device based on the Internet of Things, including an integrated cabinet, a cooling device, a cleaning system, a server, and a PLC controller; the integrated cabinet is equipped with a total hardness analyzer, a total alkalinity analyzer, a trace oxygen analyzer, and a chlorine ion analyzer. Detector, conductivity detector and PH value detector; the conductivity detector and PH value detector share a detection box as the conductivity/PH value detection box; the integrated cabinet is equipped with a water inlet pipe connected to the boiler outlet , the water inlet pipe is provided with a first water inlet valve and a pressure reducing valve, the water inlet pipe branch after the pressure reducing valve and the detection box of the total hardness analyzer, the total alkalinity analyzer, the trace oxygen analyzer, and the chloride ion detector And the conductivity/PH value detection box is connected, and the water inlet pipe of each detection box is equipped with a second water inlet valve; each detection box is equipped with an outlet pipe, and the outlet pipes are collected and discharged from the outlet of the integrated cabinet; the integrated cabinet The external water outlet pipe is provided with a first valve;

The cooling device is arranged outside the integrated cabinet, including a cooling box, a cooling pipe and a temperature detector; the cooling box is arranged at the water inlet pipe of the integrated cabinet, the water inlet pipe passes through the box body, and the cooling pipe is a spiral tube coiled in the cooling box. On the water pipe, the inlet and outlet pipes of the cooling pipe are connected with the external cold water pipe; the temperature detector is arranged on the water inlet pipe at the cooling pipe; the first water pump is arranged on the cooling pipe.

Further, a water storage pipe is provided at the cooling pipe, and the diameter of the water storage pipe is larger than that of the water inlet pipe; the volume of the water storage pipe is larger than the sum of the volumes of the five detection boxes in the integrated cabinet. The function of the water storage pipe is to reduce the temperature of the water required for one-time detection to meet the needs of subsequent detection. The temperature detector is arranged on the water storage pipe.

Further, the water inlet pipe in the cooling box is provided with a third water inlet valve and a first flowmeter, the first flowmeter can detect the amount of water entering the water inlet pipe, and is used to control the amount of water entering the water storage pipe at one time.

Further, the cleaning system includes a cleaning box, which is provided with a medicine box and a clean water pipe, and the clean water pipe is connected to an external water supply system, and a second water pump is provided on the clean water pipe; the descaling agent is stored in the medicine box; There is a liquid outlet pipe on the medicine box, and a second flow meter and a second valve are arranged on the liquid outlet pipe; the liquid outlet pipe is connected with the clean water pipe to form a cleaning main pipe, and a third valve is arranged on the cleaning main pipe; the cleaning main pipe and the water inlet pipe 1. The water outlet of the boiler is connected by a tee, and the fourth water inlet valve is arranged near the water outlet of the boiler.

Further, the first valve, the second valve, the third valve, the first water inlet valve, the second water inlet valve, the third water inlet valve and the fourth water inlet valve are all electromagnetic valves.

Further, the temperature detector, first flowmeter, second flowmeter, first water pump, second water pump, first valve, second valve, third valve, first water inlet valve, second water inlet valve , the third water inlet valve, and the fourth water inlet valve are all connected to the PLC controller, and the PLC controller is provided with a wireless transmitter to transmit the collected signal to the server and be controlled by the server.

Further, the total hardness analyzer, total alkalinity analyzer, trace oxygen analyzer, chloride ion detector, conductivity detector and pH value detector transmit data to the server through the wireless communication module and are controlled by the server.

Further, the server is connected with a display screen, a keyboard, an alarm and a printer.

Beneficial effect: compared with the prior art, the utility model has the following advantages:

The water quality monitoring device of the utility model is equipped with a cleaning system, which regularly descales the water inlet pipe and the detection box of the detection instrument in the whole device, so as to ensure the cleanliness of the pipeline and the detection box, and ensure the accuracy of the water quality monitoring results.

The utility model first lowers the temperature of the water quality to be tested, avoids the damage of the detection instrument by the boiling water in the boiler, and prolongs the service life.

The utility model utilizes the Internet of Things technology, and the PLC controller and the monitoring device are installed outdoors to control various electrical devices of the monitoring device, such as water pumps, temperature detectors, valves and flowmeters. The line connection makes the work more stable, and then uses The wireless transmission technology transmits the signal to the indoor server, and various water quality analyzers in the integrated cabinet use the wireless transmission technology to transmit the water quality analysis results to the server. The server can display the detection results, and can use the keyboard to input programs and values for remote control, and can also realize data storage and printing.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1-water inlet pipe; 2-water outlet pipe; 3-water storage pipe; 4-integrated cabinet; 401-total hardness analyzer; 402-total alkalinity analyzer; 403-trace oxygen analyzer; 404-chloride ion detection instrument; 405-conductivity detector; 406-PH value detector; 407-conductivity/PH value detection box; 5-cooling device; 501-cooling box; 502-cooling tube; 6-cleaning system; 601-cleaning box ;602-medicine box; 7-pressure reducing valve; 8-PLC controller; 9-temperature detector; 10-clean water pipe; 11-liquid outlet pipe; 12-clean main pipe; The second water inlet valve; a3-the third water inlet valve; a4-the fourth water inlet valve; b1-the first valve; b2-the second valve; b3-the third valve; c1 the first flow meter; c2-the second Flow meter; d1-first water pump; d2-second water pump.

Detailed ways

Below in conjunction with specific embodiment, further clarifies the utility model, and embodiment is carried out under the premise of technical solution of the utility model, it should be understood that these examples are only for illustrating the utility model and are not intended to limit the scope of the utility model.

As shown in Figure 1, the boiler water quality monitoring device based on the Internet of Things of the present application includes an integrated cabinet 4, a cooling device 5, a cleaning system 6 and a server and a PLC controller 8; the integrated cabinet 4 is provided with a total hardness analyzer 401, Total alkalinity analyzer 402, trace oxygen analyzer 403, chloride ion detector 404, conductivity detector 405 and pH value detector 406; Conductivity detector 405 and pH value detector 406 share a detection box as conductivity/ PH value detection box 407, and other instruments are equipped with their own detection boxes, a total of 5 detection boxes; the integrated cabinet 4 is equipped with a water inlet pipe 1 connected to the boiler water outlet, and the water inlet pipe 1 is provided with a first water inlet valve a1 and decompression valve 7, the water inlet pipe 1 shunt laying after decompression valve 7 is respectively connected with the detection box of total hardness analyzer 401, total alkalinity analyzer 402, trace oxygen analyzer 403, chloride ion detector 404 and The conductivity/PH value detection box 407 is connected, and the water inlet pipe 1 of each detection box is provided with a second water inlet valve a2; The outlet is discharged; the outlet pipe 2 outside the integrated cabinet 4 is provided with a first valve b1.

The cooling device 5 is arranged outside the integrated cabinet 4, including a cooling box 501, a cooling pipe 502 and a temperature detector 9; the cooling box 501 is arranged at the water inlet pipe 1 of the integrated cabinet 4, and the water inlet pipe 1 passes through the box body, and the cooling pipe 502 is a spiral The pipe is coiled on the water inlet pipe 1 in the cooling box 501, and the inlet and outlet pipes of the cooling pipe 502 are connected with the external cold water pipe; the temperature detector 9 is arranged on the water inlet pipe 1 at the cooling pipe 502 for monitoring the water temperature. The cooling pipe 502 is provided with a first water pump d1.

The diameter of the water inlet pipe 1 at the cooling pipe 502 is larger than other positions of the water inlet pipe 1, forming a water storage pipe 3, and the volume of the water storage pipe 3 is greater than the sum of the volumes of the five detection boxes in the integrated cabinet 4. The function of the water storage pipe 3 is to perform one-time cooling treatment on the amount of water required for one-time detection, so as to meet the needs of subsequent detection. The temperature detector 9 is arranged on the water storage pipe 3 .

The water inlet pipe 1 in the cooling box 501 is provided with a third water inlet valve a3 and a first flowmeter c1. The first flowmeter c1 can detect the amount of water entering the water inlet pipe 1 and is used to control the amount of water entering the water storage pipe 3 at one time.

The cleaning system 6 includes a cleaning box 601. The cleaning box 601 is provided with a medicine box 602 and a clean water pipe 10. The clean water pipe 10 is connected to an external water supply system. The clean water pipe 10 is provided with a second water pump d2; what is stored in the medicine box 602 is Highly concentrated body fluid agent for descaling. The medicine box 602 is provided with a liquid outlet pipe 11, the liquid outlet pipe 11 is provided with a second flow meter c2 and a second valve b2; The third valve b3; the cleaning main pipe 12 is connected with the water inlet pipe 1 and the boiler water outlet through a tee, and a fourth water inlet valve a4 is provided near the boiler water outlet of the tee.

The first valve b1, the second valve b2, the third valve b3, the first water inlet valve a1, the second water inlet valve a2, the third water inlet valve a3, and the fourth water inlet valve a4 are all electromagnetic valves.

Temperature detector 9, first flow meter c1, second flow meter c2, first water pump d1, second water pump d2, first valve b1, second valve b2, third valve b3 in cooling device 5 and cleaning system 6 , the first water inlet valve a1 , the second water inlet valve a2 , the third water inlet valve a3 , and the fourth water inlet valve a4 are all connected to the PLC controller 8 and controlled by the PLC controller 8 . The PLC controller 8 is set on the integrated cabinet 4 or on the cleaning box 601 and is protected by a casing, and is connected with various devices through lines. Therefore, the PLC controller 8 is installed outdoors, and a wireless transmitter is installed on the PLC controller 8 to transmit the collected signals to the server and be controlled by the server.

Total hardness analyzer 401, total alkalinity analyzer 402, trace oxygen analyzer 403, chloride ion detector 404, conductivity detector 405 and pH value detector 406 are equipped with wireless communication modules to directly transmit data information to In the server, controlled by the server. The server is an existing Internet of Things server, which can be a server of a purchased Internet of Things service provider, such as an Alibaba Cloud server or a Huawei Cloud server, and the server is connected with a display screen, a keyboard, an alarm and a printer.

The working principle of the cooling device of the utility model: the boiling water of the boiler first enters the cooling box 501, the first flow meter c1 is used to monitor the water intake, the first water pump d1 is turned on, the cooling pipe 502 works to cool the boiling water in the water storage pipe 3, The temperature detector 9 monitors the water temperature, and when the water temperature reaches a preset value, it controls to open the first water inlet valve a1 of the integrated cabinet 4 to start the detection work.

The working principle of the cleaning system of the present utility model: by storing high-concentration descaling agents in the agent box 602, when cleaning is required, the fourth water inlet valve a4 at the water outlet of the boiler and the first valve b1 outside the integrated cabinet 4 are closed , so that the pipelines in the water quality detection device form a closed space. Open all the water inlet valves on the water inlet pipe 1, then open the second valve b2 on the medicine box 602, the third valve b3 on the cleaning main pipe 12 and the second water pump d2, the medicine and clean water enter the water inlet pipe 1, and the first flowmeter At this time, c1 can be used to monitor the amount of clean water entering the entire water inlet pipe 1, to ensure that the water inlet pipe 1 and the detection box in the detector are filled with water, and the second flowmeter c2 monitors the amount of medicine, and the amount of medicine injected and the amount of clean water reach the preset value Then close the second water pump d2, the third valve b3 of the cleaning main pipe 12 and the second valve b2 of the medicine box 602. Clean water and medicament are mixed to fill the water inlet pipe 1 and all detection boxes for chemical reaction to remove scale. After a certain period of time, open the first valve b1 of the water outlet pipe 2 of the integrated cabinet 4, the third valve b3 and the second water pump d2 of the cleaning main pipe 12, and rinse with clean water again, and close the third valve b3 and the cleaning main pipe 12 after the flushing is completed. The second water pump d2. The cleaning system is finished.

Since the entire monitoring device of the utility model needs to be cooled after entering the water, the entire monitoring is not real-time monitoring but interval monitoring; the cleaning system can be determined according to actual conditions to realize periodic circulation.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the scope of protection of the present utility model.

Claims (9)

1. A boiler water quality monitoring device based on the Internet of Things, characterized in that: comprising an integrated cabinet (4), a cooling device, a cleaning system (6), a server and a PLC controller (8); in the integrated cabinet (4) Equipped with total hardness analyzer (401), total alkalinity analyzer (402), trace oxygen analyzer (403), chloride ion detector (404), conductivity detector (405) and pH value detector (406) The conductivity detector (405) and the PH value detector (406) share a detection box as the conductivity/PH value detection box; the outside of the integrated cabinet (4) is provided with a water inlet pipe (1) connected to the boiler water outlet , the water inlet pipe (1) is provided with a first water inlet valve (a1) and a pressure reducing valve (7). The detection box of the total alkalinity analyzer (402), the trace oxygen analyzer (403), the chloride ion detector (404) and the conductivity/PH value detection box are connected, and the water inlet pipe (1) of each detection box is equipped with There is a second water inlet valve (a2); each detection box is provided with an outlet pipe, and the outlet pipes are collected and discharged from the outlet of the integrated cabinet (4); the outlet pipe outside the integrated cabinet (4) is provided with a first valve ( b1). 2. The boiler water quality monitoring device based on the Internet of Things according to claim 1, characterized in that: the cooling device is arranged outside the integrated cabinet (4), including a cooling box (501), a cooling tube (502) and a temperature detection instrument (9); the cooling box (501) is located at the water inlet pipe (1) of the integrated cabinet (4), the water inlet pipe (1) passes through the box body, and the cooling pipe (502) is a spiral tube coiled in the cooling box (501) On the water inlet pipe (1), the inlet and outlet pipes of the cooling pipe (502) are connected with the external cold water pipe; the temperature detector (9) is arranged on the water inlet pipe (1) at the cooling pipe (502); the cooling pipe (502 ) is provided with a first water pump (d1). 3. The boiler water quality monitoring device based on the Internet of Things according to claim 2, characterized in that: the cooling pipe (502) is provided with a water storage pipe (3), and the diameter of the water storage pipe (3) is greater than the diameter of the water inlet pipe (1) ; The temperature detector (9) is arranged on the water storage pipe (3). 4. The boiler water quality monitoring device based on the Internet of Things according to claim 3, characterized in that: the water inlet pipe (1) in the cooling box (501) is provided with a third water inlet valve (a3) and a first The flow meter (c1), the first flow meter (c1) can detect the amount of water entering the water inlet pipe (1), and is used to control the amount of water entering the water storage pipe (3) at one time. 5. The boiler water quality monitoring device based on the Internet of Things according to claim 4, characterized in that: the cleaning system (6) includes a cleaning box (601), and the cleaning box (601) is provided with a medicine box (602) and The clean water pipe (10), the clean water pipe (10) is connected with the external water supply system, and the second water pump (d2) is arranged on the clean water pipe (10); the descaling agent is stored in the medicine box (602); the medicine box (602 ) is provided with a liquid outlet pipe (11), and a second flow meter (c2) and a second valve (b2) are arranged on the liquid outlet pipe (11); the liquid outlet pipe (11) is connected with the clean water pipe (10) to form The cleaning main pipe (12), the third valve (b3) is arranged on the cleaning main pipe (12); the cleaning main pipe (12) is connected with the water inlet pipe (1) and the boiler water outlet through a tee, and the tee is provided near the boiler water outlet. Fourth water inlet valve (a4). 6. The boiler water quality monitoring device based on the Internet of Things according to claim 5, characterized in that: the first valve (b1), the second valve (b2), the third valve (b3), the first water inlet valve (a1), the second water inlet valve (a2), the third water inlet valve (a3), and the fourth water inlet valve (a4) are all electromagnetic valves. 7. The boiler water quality monitoring device based on the Internet of Things according to claim 6, characterized in that: the temperature detector (9), the first flow meter (c1), the second flow meter (c2), the first water pump (d1), the second water pump (d2), the first valve (b1), the second valve (b2), the third valve (b3), the first water inlet valve (a1), the second water inlet valve (a2), The third water inlet valve (a3) and the fourth water inlet valve (a4) are all connected to the PLC controller (8), and a wireless transmitter is set on the PLC controller (8), and the collected signal is transmitted to the server, and received Server control. 8. The boiler water quality monitoring device based on the Internet of Things according to claim 1, characterized in that: said total hardness analyzer (401), total alkalinity analyzer (402), trace oxygen analyzer (403), chlorine The ion detector (404), conductivity detector (405) and pH value detector (406) transmit data to the server through the wireless communication module, and are controlled by the server. 9. The boiler water quality monitoring device based on the Internet of Things according to claim 1, wherein the server is connected with a display screen, a keyboard, an alarm and a printer.

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