Automatic chlorination control system and control method thereof

Abstract

The invention provides an automatic chlorine adding control system and a control method thereof.The system comprises a water inlet and a water outlet and further comprises a sensor module connected with the water inlet and used for monitoring the chlorine content of original water in the water inlet and the flow speed of current water in real time; the controller module is connected with the sensor module and the actuator module, and the controller module is used for receiving the chlorine content and flow velocity data of the sensor module to obtain the chlorine adding amount required by the original water; the executor module is connected with the controller module and the water outlet, and the executor module is used for adding chlorine according to the chlorine adding amount required by the original water. According to the automatic chlorine adding control and system and the control method thereof, the chlorine adding amount can be automatically adjusted according to the real-time water quality data, the water quality safety is ensured, meanwhile, the operation efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, and in particular to an automatic chlorination control system and a control method thereof. Background Art

[0002] In the traditional water treatment chlorination process, the control of chlorine addition usually relies on manual operation. This method is not only inefficient, but also difficult to ensure the accuracy of chlorine addition, thus affecting the stability and safety of water quality.

[0003] The invention patent with application number CN202311762762.0 and name of a method, device and storage medium for optimizing automatic chlorination process in a water plant discloses a method, device and storage medium for optimizing automatic chlorination process in a water plant. The method reads free chlorine content, monochloramine content and free ammonia content from clarified water flow data and filtered water flow data; automatically adjusts the amount of pre-chlorination according to the pre-chlorination flow addition ratio, free chlorine target value and free chlorine content; calculates and automatically adjusts the current amount of post-chlorination according to the post-chlorination flow addition ratio, factory monochloramine target value and monochloramine content; calculates and automatically adjusts the current amount of post-ammonia according to the post-ammonia flow addition ratio, factory free ammonia target value and free ammonia content, until the free chlorine content, monochloramine content and monochloramine content meet the factory requirements. However, the system is relatively complex and has a high implementation cost.

[0004] Therefore, it is necessary to develop an automatic chlorination control system and a control method thereof to effectively solve the above problems. Summary of the invention

[0005] The present invention provides an automatic chlorination control system and a control method thereof, which can automatically adjust the chlorination amount according to real-time water quality data to ensure water quality safety, while improving operation efficiency and reducing labor costs.

[0006] An embodiment of the present invention provides an automatic chlorination control system, the system comprising a water inlet and a water outlet, and further comprising:

[0007] A sensor module connected to the water inlet, the sensor module is used to monitor the chlorine content in the original water in the water inlet and the current water flow rate in real time;

[0008] A controller module connected to the sensor module and the actuator module, the controller module is used to receive the data of chlorine content and flow rate from the sensor module to obtain the required chlorine addition amount in the original water;

[0009] The actuator module is connected to the controller module and the water outlet, and the actuator module is used for adding chlorine according to the required amount of chlorine in the original water.

[0010] Preferably, the sensor module comprises a residual chlorine module, and the residual chlorine module is used to measure the chlorine content of the raw water.

[0011] Preferably, the sensor module comprises a flow meter module, and the flow meter module is used to measure the current flow rate of the water.

[0012] Preferably, the system further comprises an automatic valve connected to the actuator module, wherein the automatic valve automatically adjusts the valve size according to the instruction of the actuator module.

[0013] Preferably, the system further comprises a chlorinator connected to the automatic valve, and the chlorinator adjusts the amount of chlorine added by the size of the valve.

[0014] Preferably, the system further comprises a flow meter connected to the automatic valve, wherein the flow meter is used to measure the flow rate of water after being regulated by the automatic valve.

[0015] Preferably, the system further comprises an alarm module connected to the sensor module, and when the chlorine content in the raw water is lower than a set residual chlorine concentration limit, the alarm module issues an alarm prompt, and the alarm prompt comprises a sound prompt or an audio-visual prompt.

[0016] The embodiment of the present invention further provides a control method applicable to the above automatic chlorination control system, wherein the amount of chlorine required in the original water is calculated by the following formula:

[0017]

[0018] The dosing flow rate is the sodium hypochlorite dosing flow rate, in L / h; the dosing concentration is the concentration of effective chlorine after sodium hypochlorite is added to the water body and mixed without consuming chlorine, in mg / l; the water flow rate is the water volume at the dosing point, in m 3 / h; 10% is the mass fraction of effective chlorine in the sodium hypochlorite stock solution; 1.16 is the density of the sodium hypochlorite stock solution, mg / ml; 1000 is the unit conversion coefficient.

[0019] Preferably, when the measured residual chlorine concentration is lower than the set residual chlorine concentration limit, the addition flow rate is automatically adjusted, which is specifically calculated by the following formula:

[0020]

[0021] Preferably, the newly added concentration is calculated specifically by the following formula:

[0022] New addition concentration = original addition concentration + residual chlorine concentration limit - measured residual chlorine concentration

[0023] Among them, the residual chlorine concentration limit is pre-set in mg / l.

[0024] The technical solution of the embodiment of the present invention has the following beneficial effects:

[0025] An automatic chlorination control system provided by an embodiment of the present invention comprises a water inlet and a water outlet, and further comprises: a sensor module connected to the water inlet, the sensor module being used to monitor the chlorine content in the original water in the water inlet and the current flow rate of the water in real time; a controller module connected to the sensor module and an actuator module, the controller module being used to receive the data of the chlorine content and flow rate of the sensor module to obtain the required chlorination amount in the original water; the actuator module being connected to the controller module and the water outlet, the actuator module being used to add chlorine according to the required chlorination amount in the original water, and realizing automatic adjustment of the chlorination amount in the water treatment process by integrating advanced sensor technology, intelligent control algorithm and precise actuator, so as to ensure the safety and stability of water quality;

[0026] Furthermore, manual operations can be reduced, thereby reducing labor intensity and reducing costs, and the automation level of the water treatment system can also be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present invention, not all embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0028] Figure 1 A schematic diagram of the structure of an automatic chlorination control system provided by one embodiment of the present invention;

[0029] Figure 2 A schematic structural diagram of an automatic chlorination control system provided in another embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0032] Based on the problems existing in the prior art, the present invention provides an automatic chlorination control system and a control method thereof, which can automatically adjust the chlorination amount according to real-time water quality data to ensure water quality safety, while improving operating efficiency and reducing labor costs.

[0033] Figure 1 A schematic diagram of the structure of an automatic chlorination control system provided by an embodiment of the present invention, Figure 2 A schematic diagram of the structure of an automatic chlorination control system provided by another embodiment of the present invention. Figure 1 and Figure 2 The embodiment of the present invention provides an automatic chlorination control system, the system comprising a water inlet and a water outlet, and further comprising:

[0034] A sensor module 11 is connected to the water inlet, and is used to monitor the chlorine content in the original water in the water inlet and the current water flow rate in real time;

[0035] A controller module 12, which is connected to the sensor module 11 and the actuator module 13, and is used to receive the data of chlorine content and flow rate from the sensor module 11 to obtain the required amount of chlorine added to the original water;

[0036] The actuator module 13 is connected to the controller module 12 and the water outlet, and is used for adding chlorine according to the required amount of chlorine in the original water.

[0037] In a specific implementation, the sensor module 11 includes a residual chlorine module 14, and the residual chlorine module 14 is used to measure the chlorine content of the original water.

[0038] In a specific implementation, the sensor module 11 includes a flow meter module 15, and the flow meter module 15 is used to measure the current flow rate of the water.

[0039] In a specific implementation, the system further includes an automatic valve 16 , which is connected to the actuator module 13 , and the automatic valve 16 automatically adjusts the valve size according to the instruction of the execution module 13 .

[0040] In a specific implementation, the system further comprises a chlorinator 17, which is connected to the automatic valve 16, and the chlorinator 17 adjusts the amount of chlorine added by the size of the valve.

[0041] In a specific implementation, the system further includes a flow meter 18 , which is connected to the automatic valve 16 , and the flow meter 18 is used to measure the flow rate of the water after being regulated by the automatic valve 16 .

[0042] In a specific implementation, the system also includes an alarm module 19, which is connected to the sensor module 11. When the chlorine content in the original water is lower than the set residual chlorine concentration limit, the alarm module 19 issues an alarm prompt, and the alarm prompt includes a sound prompt or an audio-visual prompt.

[0043] The embodiment of the present invention further provides a control method applicable to the above automatic chlorination control system, wherein the amount of chlorine required in the original water is calculated by the following formula:

[0044]

[0045] The dosing flow rate is the sodium hypochlorite dosing flow rate, in L / h; the dosing concentration is the concentration of effective chlorine after sodium hypochlorite is added to the water body and mixed without consuming chlorine, in mg / l; the water flow rate is the water volume at the dosing point, in m 3 / h; 10% is the mass fraction of effective chlorine in the sodium hypochlorite stock solution; 1.16 is the density of the sodium hypochlorite stock solution, mg / ml; 1000 is the unit conversion coefficient.

[0046] In the specific implementation, when the measured residual chlorine concentration is lower than the set residual chlorine concentration limit, the addition flow rate is automatically adjusted, which is specifically calculated by the following formula:

[0047]

[0048] In a specific implementation, the newly added concentration is specifically calculated by the following formula:

[0049] New addition concentration = original addition concentration + residual chlorine concentration limit - measured residual chlorine concentration

[0050] Among them, the residual chlorine concentration limit is pre-set in mg / l.

[0051] When the control system is in use, the sensor module 11 monitors the chlorine content and flow rate in the water in real time; the controller module 12 receives the data from the sensor module 11 and calculates the required amount of chlorine; the automatic chlorination control method includes the following steps:

[0052]

[0053] The dosing flow rate is the sodium hypochlorite dosing flow rate, in L / h; the dosing concentration is the concentration of effective chlorine after sodium hypochlorite is added to the water body and mixed without consuming chlorine, in mg / l; the water flow rate is the water volume at the dosing point, in m3 / h; 10% is the mass fraction of effective chlorine in the sodium hypochlorite stock solution; 1.16 is the density of the sodium hypochlorite stock solution, mg / ml; 1000 is the unit conversion coefficient.

[0054] When the measured residual chlorine concentration is lower than the set residual chlorine concentration limit, the addition flow rate is automatically adjusted, which is calculated by the following formula:

[0055]

[0056] The new addition concentration is specifically calculated by the following formula:

[0057] New addition concentration = original addition concentration + residual chlorine concentration limit - measured residual chlorine concentration

[0058] Among them, the residual chlorine concentration limit is pre-set in mg / l.

[0059] The execution module 13 adjusts the size of the automatic valve 16 according to the instruction of the controller module 12 to control the amount of chlorine added by the chlorinator 17, so that the amount of chlorine added can be accurately determined.

[0060] In summary, an automatic chlorination control system provided by an embodiment of the present invention includes a water inlet and a water outlet, and further includes: a sensor module connected to the water inlet, the sensor module is used to monitor the chlorine content in the original water in the water inlet and the current water flow rate in real time; a controller module connected to the sensor module and the actuator module, the controller module is used to receive the data of the chlorine content and flow rate of the sensor module, and obtain the required chlorination amount in the original water; the actuator module is connected to the controller module and the water outlet, the actuator module is used to add chlorine according to the required chlorination amount in the original water, and by integrating advanced sensor technology, intelligent control algorithm and precise actuator, the automatic adjustment of the chlorination amount in the water treatment process is realized to ensure the safety and stability of water quality;

[0061] Furthermore, manual operations can be reduced, thereby reducing labor intensity and reducing costs, and the automation level of the water treatment system can also be improved.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic chlorination control system, characterized in that: The system comprises a water inlet and a water outlet, and further comprises: A sensor module connected to the water inlet, the sensor module is used to monitor the chlorine content in the original water in the water inlet and the current water flow rate in real time; A controller module connected to the sensor module and the actuator module, the controller module is used to receive the data of chlorine content and flow rate from the sensor module to obtain the required chlorine addition amount in the original water; The actuator module is connected to the controller module and the water outlet, and the actuator module is used for adding chlorine according to the required amount of chlorine in the original water.

2. The automatic chlorination control system according to claim 1, characterized in that: The sensor module includes a residual chlorine module, and the residual chlorine module is used to measure the chlorine content of the original water.

3. The automatic chlorination control system according to claim 1, characterized in that: The sensor module includes a flow meter module, and the flow meter module is used to measure the current flow rate of the water.

4. The automatic chlorination control system according to claim 1, characterized in that: The system further comprises an automatic valve connected to the actuator module, wherein the automatic valve automatically adjusts the valve size according to the instruction of the actuator module.

5. The automatic chlorination control system according to claim 4, characterized in that: The system further comprises a chlorinator connected to the automatic valve, and the chlorinator adjusts the amount of chlorine added by the size of the valve.

6. The automatic chlorination control system according to claim 4, characterized in that: The system also includes a flow meter connected to the automatic valve, and the flow meter is used to measure the flow rate of water after being regulated by the automatic valve.

7. The automatic chlorination control system according to claim 1, characterized in that: The system also includes an alarm module, which is connected to the sensor module. When the chlorine content in the original water is lower than the set residual chlorine concentration limit, the alarm module issues an alarm prompt, and the alarm prompt includes a sound prompt or an audio-visual prompt.

8. A control method applicable to the automatic chlorination control system as claimed in claim 1, characterized in that: The amount of chlorine required in the raw water is calculated by the following formula: The dosing flow rate is the sodium hypochlorite dosing flow rate, in L / h; the dosing concentration is the concentration of effective chlorine after sodium hypochlorite is added to the water body and mixed without consuming chlorine, in mg / l; the water flow rate is the water volume at the dosing point, in m 3 / h; 10% is the mass fraction of effective chlorine in the sodium hypochlorite stock solution; 1.16 is the density of the sodium hypochlorite stock solution, mg / ml; 1000 is the unit conversion coefficient.

9. The control method according to claim 8, characterized in that: When the measured residual chlorine concentration is lower than the set residual chlorine concentration limit, the addition flow rate is automatically adjusted, which is calculated by the following formula:

10. The control method according to claim 9, characterized in that: The new addition concentration is specifically calculated by the following formula: New addition concentration = original addition concentration + residual chlorine concentration limit - measured residual chlorine concentration Among them, the residual chlorine concentration limit is pre-set in mg / l.

Images