Water supply tank water quality monitoring and alarming system

Abstract

The utility model discloses a water supply tank water quality monitoring alarm system which comprises a monitoring system connected with a water supply tank, the monitoring system comprises a control module, and a water quality acquisition module and an alarm module which are both electrically connected with the control module; the electromagnetic valve A on the water inlet pipe of the water supply tank and the electromagnetic valve B on the water outlet pipe of the water supply tank are both electrically connected with the control module. The device is a water quality monitoring and alarming system suitable for the secondary water supply of the residence community, has the advantages of stable performance, convenience in installation, low power consumption, quick response and the like, and can effectively carry out water quality monitoring and early warning on the secondary water supply of the residence community.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality monitoring, in particular to a water quality monitoring and alarming system for a water supply water tank. Background Art

[0002] Due to the complex layout of the water supply pipe network, which is buried underground for a long time and is often affected by changes in residual chlorine, increased water age, rusting of pipes or pipe fittings, etc., there is a risk of secondary pollution of the water quality in the pipe network. Especially for residential communities at the end of the pipe network, their water demand is relatively small or irregular, which may cause too long hydraulic residence time in the pipe network, resulting in phenomena such as reduced residual chlorine concentration at the end, increased bacterial content, and enrichment of metal ions at the end. This will bring relatively high water quality risks to some ends of the pipe network, thus seriously endangering people's physical health.

[0003] Existing secondary water supply water quality monitoring equipment mainly consists of monitoring instruments, with relatively single functions, unable to conduct risk assessment on the water quality at the end of the pipe network (water supply water tank), and unable to give early warnings or take active emergency control measures when there are water quality risks. Content of the Utility Model

[0004] In view of the above deficiencies of the prior art, the utility model provides a water quality monitoring and alarming system for a water supply water tank, which solves the problem that the existing water quality monitoring equipment has relatively single functions and cannot give early warnings.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] Provide a water quality monitoring and alarming system for a water supply water tank, which includes a monitoring system connected to the water supply water tank. The monitoring system includes a control module, a water quality acquisition module and an alarm module both electrically connected to the control module; the water quality acquisition module is arranged at the inlet pipe or outlet pipe of the water supply water tank, and the solenoid valve A on the inlet pipe of the water supply water tank and the solenoid valve B on the outlet pipe are both electrically connected to the control module.

[0007] The beneficial effect of the utility model is that: the water quality acquisition module can collect the water quality indexes at the water inlet of the water supply water tank and transmit the data to the control module. When the control module determines that the water quality indexes are higher than the preset indexes, it can control the alarm module to immediately issue an alarm, and at the same time control the solenoid valve A and the solenoid valve B to close, cutting off the problematic water source to prevent unqualified water from flowing into the homes of residents or the faucets at the end of the pipeline, ensuring the drinking water safety of the community residents. The device has a simple composition structure, stable performance, is easy to install, has a low cost, and is suitable for installation and use in most communities.

[0008] Further, the monitoring system further includes a housing, and a partition is fixed inside the housing to divide the interior of the housing into an upper space and a lower space; a water storage container communicating with the water inlet pipe is arranged in the lower space, and the monitoring probe in the water quality acquisition module is arranged in the water storage container; the control module and the alarm module are located in the upper space, and the monitoring probe is electrically connected to the control module.

[0009] The beneficial effects of the above technical solution are as follows: The water storage container can be isolated from the electrical components through the partition, and the space inside the housing is reasonably divided to prevent the electrical components from getting damp due to water evaporation or splashing, thereby improving the operation stability and safety of the equipment.

[0010] Further, several water storage containers are arranged in the lower space, and different monitoring probes are respectively placed in different water storage containers. Setting a variety of monitoring instruments can monitor different parameter indicators in the water body, provide more monitoring data and information, and comprehensively judge the water quality after integrating a variety of monitoring data.

[0011] Further, a first pipe and a second pipe are arranged in the lower space. The first pipe is respectively communicated with the inlet ends of several water storage containers through several fourth pipes, and a valve body is arranged on the fourth pipe; the outlet ends of the water storage containers are communicated with the second pipe through several third pipes; both the first pipe and the second pipe are communicated with the water inlet pipe.

[0012] The beneficial effects of the above technical solution are as follows: Through the above method, different water storage containers can form a separate space, and different water storage containers do not interfere with each other, which is convenient for the monitoring probe to work stably in different independent environments.

[0013] Further, the alarm module includes an alarm and signal lamps L1 - L3, and the input interface of the microprocessor in the control module is connected to the water quality acquisition module;

[0014] The output interfaces PD1 and PD2 of the microprocessor are respectively connected to signal lamps L1 and L2 and then connected to the positive pole of the power supply; the output interface PD3 is respectively connected to one end of the coil of the relay and one end of the contact switch of the relay. The other end of the coil is connected to the positive pole of the power supply through a fuse R1, and the other end of the contact switch is connected to the positive pole of the power supply through signal lamp L3;

[0015] The alarm is connected in parallel with signal lamp L3, and the circuits formed by solenoid valves A and B in parallel are respectively connected to the alarm and the positive pole of the power supply; the microprocessor is grounded.

[0016] The beneficial effects of the above technical solution are as follows: The water quality collection module transmits signals to the microprocessor through the input interface. The microprocessor can convert the collected data into electrical signals for output and control the output voltages of the output interfaces PD1 - PD3, thereby controlling the connection or disconnection of the circuits where the signal lamps L1 - L3, the alarm, the solenoid valve A, and the solenoid valve B are located to control their opening and closing, so as to represent different risk states.

[0017] Further, the water quality collection module includes a residual chlorine monitoring probe, a turbidity monitoring probe, and a flowmeter. The residual chlorine monitoring probe, the turbidity monitoring probe, and the flowmeter are respectively input into the microprocessor through the input interfaces PA1 - PA3.

[0018] Further, a filter plate is arranged between the inlet end and the outlet end of the water storage container to be able to perform additional filtration treatment on the drinking water and further ensure the water quality is clean.

[0019] Further, the top end of the water storage container is hermetically connected with a cover plate, and the monitoring probe passes through the cover plate and is fixedly connected with the cover plate. The cover plate can prevent water from overflowing and further effectively prevent the electrical components from being affected by moisture caused by water evaporation or splashing.

[0020] Further, the control module further includes a human - machine interaction module, a data storage module, and a GPRS module. The GPRS module is connected to the antenna; the human - machine interaction module is arranged on the outer surface of the housing, and the antenna extends out of the housing.

[0021] The GPRS module can transmit the water quality information to the central control room or the remote monitoring center in real time. When the water quality alarm device triggers a warning, the GPRS module will simultaneously send corresponding warning information to the monitoring center to alert the operation and management personnel to formulate relevant measures.

[0022] Further, the lights of the signal lamps L1 - L3 are respectively in the green wavelength band, the yellow wavelength band, and the red wavelength band, and different - colored indicator lights can be displayed according to different risk levels. Description of the Drawings

[0023] Figure 1 It is a schematic diagram inside the housing of the water quality monitoring and alarm system for the water supply water tank;

[0024] Figure 2 It is a system block diagram of the monitoring system;

[0025] Figure 3 It is a circuit schematic diagram of the monitoring system;

[0026] Figure 4 It is a schematic diagram of the appearance of the housing;

[0027] Figure 5 It is a schematic diagram of the connection relationship between the monitoring system and the water supply water tank.

[0028] Among them, 1. Monitoring system; 11. Housing; 121. Alarm; 122. Relay; 123. Residual chlorine monitoring probe; 124. Turbidity monitoring probe; 125. Flowmeter; 13. Microprocessor; 141. First pipeline; 142. Second pipeline; 143. Third pipeline; 144. Fourth pipeline; 15. Water storage container; 151. Filter plate; 152. Cover plate; 153. Monitoring probe; 16. Partition; 18. Antenna; 2. Water supply water tank; 21. Water inlet pipe; 22. Water outlet pipe; 24. Solenoid valve A; 25. Solenoid valve B; 3. Human-computer interaction module. Detailed implementation manners

[0029] The following describes the detailed implementation manners of the present utility model to facilitate those skilled in the art of this technical field to understand the present utility model. However, it should be clear that the present utility model is not limited to the scope of the detailed implementation manners. For those of ordinary skill in the art of this technical field, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all utility models created using the concept of the present utility model are within the scope of protection.

[0030] As Figure 5 shown, the water quality monitoring and alarm system of this solution includes a monitoring system 1 connected to the water supply water tank 2. Refer to Figure 2 , the monitoring system 1 includes a control module, and a water quality acquisition module and an alarm module both electrically connected to the control module. Among them, the water quality acquisition module is arranged at the water inlet pipe 21 or the water outlet pipe 22 of the water supply water tank 2, and the solenoid valve A 24 on the water inlet pipe 21 of the water supply water tank 2 and the solenoid valve B 25 on the water outlet pipe 22 are both electrically connected to the control module.

[0031] The water quality acquisition module can collect the water quality indexes at the water inlet of the water supply water tank and transmit the data to the control module. When the control module determines that the water quality indexes are higher than the preset indexes, it can control the alarm module to immediately issue an alarm, and at the same time control the solenoid valve A 24 and the solenoid valve B 25 to close, cutting off the problem water source to prevent unqualified water from flowing into the homes of residents or the faucets at the end of the pipeline, ensuring the drinking water safety of the community residents. The device has a simple composition structure, stable performance, is easy to install, has a low cost, and is suitable for installation and use in most communities.

[0032] Refer to Figure 1 and Figure 4 , the monitoring system 1 further includes a housing 11, and a partition 16 that divides the interior of the housing 11 into an upper space and a lower space is fixed inside the housing 11; a water storage container 15 communicated with the water inlet pipe 21 is arranged in the lower space, and the monitoring probe 153 in the water quality acquisition module is arranged in the water storage container 15; the control module and the alarm module are located in the upper space, and the monitoring probe 153 is electrically connected to the control module.

[0033] The lower layer space houses the water storage container 15 to be detected, and the upper layer space is used to place other electrical components. The two parts are isolated by a partition 16, and the space inside the housing 11 is reasonably divided, which can effectively prevent the electrical components from getting damp due to water evaporation or splashing, improve the operation stability and safety of the equipment, and avoid problems such as short circuits and corrosion caused by the electrical components being exposed to a humid environment for a long time.

[0034] The water quality acquisition module can include a variety of monitoring probes 153. There are several water storage containers 15 provided in the lower layer space, and different monitoring probes 153 are respectively placed in different water storage containers 15. Setting a variety of monitoring probes 153 to monitor different parameter indicators in the water body can provide more monitoring data and information. After synthesizing a variety of monitoring data and then comprehensively judging the water quality, it can ensure the monitoring accuracy and improve the reliability of the monitoring. And the various monitoring probes 153 are separately placed in different water storage containers 15, which can avoid the mutual interference between different monitoring probes 153 and avoid affecting the accuracy of the detection results.

[0035] Reference Figure 1 , a first pipe 141 and a second pipe 142 are provided in the lower layer space. The first pipe 141 is respectively communicated with the inlet ends of several water storage containers 15 through several fourth pipes 144, and a valve body or a pump is provided on each fourth pipe 144 to separately control the water flow rate of each water storage container 15.

[0036] The housing 11 cuts the water inlet pipe 21 into two pipe bodies, and the perspectives in Figure 1 and Figure 5 can be called the left end water inlet pipe 21 and the right end water inlet pipe 21. The outlet end of the water storage container 15 is communicated with the second pipe 142 through several third pipes 143; the first pipe 141 is communicated with the left end water inlet pipe 21, and the second pipe 142 is communicated with the right end water inlet pipe 21. That is, the flow path of the water body is: water supply source, left end water inlet pipe 21, first pipe 41, fourth pipe 144, water storage container 15, third pipe 143, second pipe 142, right end water inlet pipe 21, water supply water tank 2, water outlet pipe 22. Through the above method, different water storage containers 15 can form a separate space, and different water storage containers 15 do not interfere with each other, which is convenient for the monitoring probes 153 to work stably in different independent environments.

[0037] In one embodiment, a filter plate 151 is provided between the inlet end and the outlet end of the water storage container 15. Drinking water enters the first pipe 141 from the water inlet pipe 21 of the community household, and then flows into several water storage containers 15 respectively. In the water storage container 15, the drinking water can be filtered through the filter plate 151, and then flows into the second pipe 142 through the outlet end and then flows to the water supply water tank 2, so as to be able to perform additional filtration treatment on the drinking water and further ensure the water quality is clean.

[0038] A cover plate 152 is hermetically connected to the top end of the water storage container 15, and the monitoring probe 153 passes through the cover plate 152 and is fixedly connected to the cover plate 152. The cover plate 152 can prevent water from overflowing, further effectively prevent the electrical components from being affected by moisture due to water evaporation or splashing, and ensure the stable operation of the electrical components in the upper space. In addition, it can also play a role in fixing the monitoring probe 153.

[0039] The alarm module includes an alarm 121 and signal lights L1 - L3. The input interface of the microprocessor 13 in the control module is connected to the water quality acquisition module, and the water quality acquisition module transmits signals to the microprocessor 13 through the input interface.

[0040] Reference Figure 3 , the output interfaces PD1 and PD2 of the microprocessor 13 are respectively connected to the signal lights L1 and L2 and then connected to the positive pole of the power supply; the output interface PD3 is respectively connected to one end of the coil of the relay 122 and one end of the contact switch of the relay 122. The other end of the coil is connected to the positive pole of the power supply through the fuse R1, and the other end of the contact switch is connected to the positive pole of the power supply through the signal light L3;

[0041] The alarm 121 is connected in parallel with the signal light L3. The circuits formed by the solenoid valves A24 and B25 in parallel are respectively connected to the alarm 121 and the positive pole of the power supply; the microprocessor 13 is grounded.

[0042] The microprocessor 13 can convert the collected data into electrical signals for output and control the output voltages of the output interfaces PD1 - PD3, and then control the on - off of the circuits where the signal lights L1 - L3, the alarm 121, the solenoid valve A24, and the solenoid valve B25 are located to control their opening and closing, so as to represent different risk states.

[0043] The main function of the input and output interfaces is to convert the signals of the residual chlorine monitoring probe 123 and turbidity monitoring probe 124 on the water inlet pipe and the signal of the flow meter 125 on the water outlet pipe into signals that can be recognized by the microprocessor.

[0044] Specifically, the principle of the present utility model is as follows:

[0045] The input port (IN) mainly receives signals such as residual chlorine, turbidity, and flow rate. After analog - to - digital conversion, they are transmitted to the microprocessor for analysis and calculation; the signal processing results of the microprocessor respectively control the alarm, solenoid valve A, and solenoid valve B through the output port (OUT). The function of the output port is to convert the digital signal into an analog signal that can be recognized by the alarm and solenoid valves, and output voltages from the interfaces PD1 - PD3.

[0046] The microprocessor 13 also has a built-in water quality risk assessment calculation program. When the water quality assessment is of low risk, the port PD1 outputs a 0V voltage. The current at the positive pole of the power supply 17 passes through the signal lamp L1 and forms a closed circuit with PD1, and the signal lamp L1 lights up.

[0047] When the water quality assessment is of medium risk, the STM32 microprocessor 13 records the event log and sends a warning message. The output port PD2 outputs a 0V voltage. The current at the positive pole of the power supply 17 passes through the signal lamp L2 and forms a closed circuit with PD2, and the signal lamp L2 lights up. This is the warning method.

[0048] When the water quality assessment is of high risk, the microprocessor 13 records the event log and sends an alarm message. The interface PD3 outputs a 0V voltage. The current at the positive pole of the power supply 17 passes through the fuse R1 to the coil of the relay 122 respectively and forms a closed circuit with the interface PD3. The contact switch of the relay 122 closes, so that the current passes through the signal lamp L3, the alarm 121, the solenoid valve A24 and the solenoid valve B25 respectively, and also forms a closed circuit with the interface PD3. The signal lamp L3 lights up, the alarm 121 emits an alarm sound, and the solenoid valves A24 and B25 are closed simultaneously to cut off the problematic water source.

[0049] Preferably, the lights of the signal lamps L1 - L3 are in the green band, yellow band and red band respectively, and different color indicator lights can be displayed according to different risk levels. That is, when the green light is on, it means the water quality is normal, there is no risk or the overall risk is low; when the yellow light is on, it means that some water quality indicators have certain risks and effective measures need to be taken for management and maintenance; when the red light is on, it means that some water quality indicators have exceeded the standard and immediate control is required.

[0050] In an embodiment of this solution, the water quality acquisition module may include a residual chlorine monitoring probe 123, a turbidity monitoring probe 124 and a flow meter 125. The residual chlorine monitoring probe 123, the turbidity monitoring probe 124 and the flow meter 125

[0051] are respectively input into the microprocessor 13 through the input interfaces PA1 - PA3. Preferably, the monitoring probes 153 in the water storage container 15 are the monitoring probes 153 of the residual chlorine monitoring probe 123 and the turbidity monitoring probe 124 respectively; the flow meter 125 is arranged on the water outlet pipe 22.

[0052] The water quality situation will vary due to factors such as the internal situation of the water supply tank 2 and the liquid level change. Therefore, the residual chlorine index and turbidity index in the water outlet pipe 22 of the water supply tank cannot accurately reflect the water quality. Therefore, the residual chlorine monitoring probe 123 and the turbidity monitoring probe 124 should be installed at the water inlet pipe 21. The water consumption situation of users will vary with time periods. Therefore, the flow meter 125 can effectively reflect the hydraulic retention time of the water supply tank 2 only when it is installed on the water outlet pipe 22.

[0053] The microprocessor 13 can be STM32F103RCT6. When the residual chlorine index, turbidity index, and hydraulic retention time (the ratio of the effective volume of the water storage container 15 to the flow monitoring data) are higher than the preset indicators, for example, when the residual chlorine index is higher than 2 mg / L, the turbidity index is greater than 1 NTU, and the hydraulic retention time is greater than 8 h, it is preferentially evaluated as a high risk.

[0054] The standard sampling frequency of the residual chlorine monitoring probe 123, turbidity monitoring probe 124, and flowmeter 125 can be once every 5 minutes. The collected residual chlorine, turbidity, and flow signals are transmitted to the input port IN and converted into digital signals that can be recognized by the STM32 microprocessor 13 after preprocessing. The flowmeter 125 can be an LDG-SUP electromagnetic flowmeter.

[0055] The control module also includes a human-machine interaction module 3, a data storage module, and a GPRS module. The GPRS module is connected to the antenna 18. The GPRS module is a wireless transmission module, and the antenna 18 extends out of the housing 11 and receives and transmits wireless signals to the GPRS module.

[0056] The human-machine interaction module 3 is arranged on the outer surface of the housing 11. The human-machine interaction module 3 is mainly used to set the effective volume of the water supply tank 2, set the transmission mode of input and output signals, set the initial parameters for the operation and calculation of the microprocessor 13, etc., and can display the water quality information such as residual chlorine, turbidity, and hydraulic retention time in real time through the LED screen.

[0057] The data storage module is used to back up and store the calculation program, set parameters, and operation data of the microprocessor 13. Such as: residual chlorine, turbidity, flow monitoring data, water quality risk assessment data of the water supply tank, etc. This type of data is stored or backed up in a general format, and the maximum storage duration is 15 days, which can be called by technical personnel or operation and maintenance personnel as needed.

[0058] GPRS is a wireless transmission technology based on IP. It can communicate or transmit data remotely with the monitoring room in the residential community. The GPRS module in this device is a spare expansion function module. If there is a central control room or remote monitoring center in the residential community, or there is a business requirement for remote control, wireless communication can be established with the GPRS module of this device to remotely monitor the operating status or water quality change trend of the water inlet pipe 21 and outlet pipe 22 of the water supply tank.

[0059] For example, the GPRS module can transmit the water quality information to the central control room or remote monitoring center in real time. When the water quality alarm device triggers a warning, the GPRS module will also send the corresponding warning information to the monitoring center to alert the operation and management personnel to formulate relevant measures.

[0060] In summary, the present solution can output different instructions according to different risk level thresholds. When the water quality is at medium risk, the signal lamp L2 lights up for early warning to attract the attention of operation and management personnel; when the water quality is at high risk, the signal lamp L3 lights up, an alarm sound is emitted, and the water source is cut off in a timely manner to prevent high-risk water from entering users' homes.

Claims

1. A water supply tank water quality monitoring and alarm system, characterized in that: The invention comprises a monitoring system (1) connected to a water supply tank (2), wherein the monitoring system (1) comprises a control module and a water quality collection module and an alarm module both electrically connected to the control module; the water quality collection module is arranged at a water inlet pipe (21) or a water outlet pipe (22) of the water supply tank (2), and a solenoid valve A (24) on the water inlet pipe (21) of the water supply tank (2) and a solenoid valve B (25) on the water outlet pipe (22) are both electrically connected to the control module.

2. The water quality monitoring and alarm system for a water supply tank according to claim 1 is characterized in that: The monitoring system (1) further comprises a shell (11), wherein a partition (16) is fixed inside the shell (11) and divides the interior of the shell (11) into an upper space and a lower space; a water storage container (15) connected to a water inlet pipe (21) is arranged in the lower space, and a monitoring probe (153) in a water quality collection module is arranged in the water storage container (15); a control module and an alarm module are located in the upper space, and the monitoring probe (153) is electrically connected to the control module.

3. The water quality monitoring and alarm system for a water supply tank according to claim 2 is characterized in that: A plurality of water storage containers (15) are arranged in the lower space, and different monitoring probes (153) are respectively placed in different water storage containers (15).

4. The water quality monitoring and alarm system for a water supply tank according to claim 3 is characterized in that: A first pipe (141) and a second pipe (142) are arranged in the lower space; the first pipe (141) is respectively connected to the inlet ends of the plurality of water storage containers (15) through a plurality of fourth pipes (144); a valve body is arranged on the fourth pipe (144); the outlet end of the water storage container (15) is connected to the second pipe (142) through a plurality of third pipes (143); and the first pipe (141) and the second pipe (142) are both connected to the water inlet pipe (21).

5. The water quality monitoring and alarm system for a water supply tank according to claim 2 is characterized in that: The alarm module comprises an alarm (121) and signal lights L1-L3, and the input interface of the microprocessor (13) in the control module is connected to the water quality collection module; The output interfaces PD1 and PD2 of the microprocessor (13) are respectively connected to the signal lamps L1 and L2 and then connected to the positive electrode of the power supply; the output interface PD3 is respectively connected to one end of the coil of the relay (122) and one end of the contact switch of the relay (122), the other end of the coil is connected to the positive electrode of the power supply through the fuse R1, and the other end of the contact switch is connected to the positive electrode of the power supply through the signal lamp L3; The alarm (121) is connected in parallel with the signal lamp L3, and the solenoid valve A (24) and the solenoid valve B (25) are connected in parallel. The circuit formed later is connected to the alarm (121) and the positive electrode of the power supply respectively; the microprocessor (13) is grounded.

6. The water quality monitoring and alarm system for a water supply tank according to claim 5 is characterized in that: The water quality collection module comprises a residual chlorine monitoring probe (123), a turbidity monitoring probe (124) and a flow meter (125), and the residual chlorine monitoring probe (123), the turbidity monitoring probe (124) and the flow meter (125) are respectively input into the microprocessor (13) through input interfaces PA1-PA3.

7. The water quality monitoring and alarm system for a water supply tank according to claim 2 is characterized in that: The storage A filter plate (151) is provided between the inlet end and the outlet end of the water container (15).

8. The water quality monitoring and alarm system for a water supply tank according to claim 2 is characterized in that: The storage The top end of the water container (15) is sealed with a cover plate (152), and the monitoring probe (153) passes through the cover plate (152) and is fixedly connected to the cover plate (152).

9. The water quality monitoring and alarm system for a water supply tank according to claim 2 is characterized in that: The control The control module also includes a human-computer interaction module (3), a data storage module and a GPRS module. The block is connected to the antenna (18); the human-machine interaction module (3) is arranged on the outer surface of the housing (11), and the antenna (18) extends out of the housing (11).

10. The water quality monitoring and alarm system for a water supply tank according to claim 5, characterized in that: Said The lights of the signal lights L1-L3 are green, yellow and red respectively.

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