Automatic continuous pH detection and regulation system
By designing an automatic continuous pH detection and adjustment system, using adjustment tanks, acid-base tanks and detection tanks, combined with adjustment pumps, adjustment valves and pH meters, real-time automatic continuous detection is achieved, which solves the problem of measurement accuracy errors and inability to continuously detect in the existing technology. And the problem of online pH meters easily accumulating impurities extends the service life of the equipment and maintains measurement accuracy.
Patent Information
- Application Number
- CN202420400062.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-03-01
AI Technical Summary
The prior art has problems such as measurement accuracy errors when detecting the pH value of liquids in pipelines, inability to detect continuously, highly dependent on manpower, and inaccurate measurements when the liquid is turbulent, and online pH meters are prone to accumulate impurities that affect detection accuracy.
An automatic continuous pH detection and adjustment system is designed, including a regulating tank, an acid-base tank, a collection tank and a detection tank. Real-time automatic continuous detection is achieved through a regulating pump, a regulating valve and a pH meter, and a pH meter cleaning component is set up in the system to Clean the pH meter regularly.
It reduces the error before and after the measurement data under the same conditions, extends the service life of the pH meter, and maintains measurement accuracy when the liquid is turbulent.
Smart Images
Figure CN222379712U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sugar alcohol preparation, and particularly relates to an automatic continuous pH detection and adjustment system. Background Art
[0002] When testing the pH value of liquid in a pipeline, the method usually involves reserving a corresponding sampling port in advance on the pipeline, manually going to the sampling point at a fixed time, and testing after collecting the liquid; or drilling a hole in the pipeline and directly adding a pH meter for testing. The former has the disadvantages of errors in the measurement accuracy before and after, inability to detect continuously, and high reliance on manpower. Although the latter can continuously measure the pH value of the liquid, when the liquid in the pipeline is relatively turbulent, the measurement reading cannot be accurately displayed and it is easy to be damaged.
[0003] On the other hand, sometimes after a pH meter has been used online for a long time, impurities in the measured solution are easily accumulated on its surface, thus affecting the accuracy of the pH meter's detection. How to regularly clean the online pH meter is also a problem that needs to be solved. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide an automatic continuous pH detection and adjustment system, which can perform real-time automatic continuous detection, can perform measurements under the same conditions, reduce the errors before and after the measurement data, and extend the service life.
[0005] The utility model is implemented in this way, providing an automatic continuous pH detection and adjustment system, including an adjustment tank, an acid-base tank and a collection tank, the adjustment tank stores a raw material liquid whose pH value is to be adjusted, the acid-base tank stores an acid or alkali liquid capable of adjusting the pH value of the raw material liquid in the adjustment tank to a set value, the adjustment tank and the acid-base tank are connected through an adjustment pipeline, a regulating pump and a regulating valve are respectively arranged on the adjustment pipeline, a feed pipeline connected to the collection tank is arranged on the adjustment tank, and a feed pump and a first pneumatic valve are sequentially arranged on the feed pipeline. The system also includes a first detection tank and a detection main pipeline, a first detection pipeline, a first return pipeline, and a first discharge pipeline connected to the first return pipeline are respectively arranged on the first detection tank, and the detection main pipeline is respectively connected to the feed pipeline and the first detection pipeline. The position of the first detection pipeline on the first detection tank is lower than the position of the first return pipeline on the first detection tank, the connection point between the detection main pipeline and the feed pipeline is located at the rear end of the first pneumatic valve, the connection point between the first return pipeline and the feed pipeline is located at the front end of the feed pump, and the position of the first discharge pipeline on the first detection tank is lower than the position of the first detection pipeline on the first detection tank. A second pneumatic valve is arranged on the first detection pipeline, a first return valve is arranged on the first return pipeline, and a first discharge valve is arranged on the first discharge pipeline. A first pH meter for measuring the pH value of the raw material liquid stored therein is arranged on the first detection tank, and the first pH meter is interlocked with the control signals of the feed pump, the regulating pump, and the regulating valve, respectively. The pH value detected by the first pH meter is correlated with the power of the feed pump, the power of the regulating pump, and the opening of the regulating valve. A first liquid level meter for measuring the liquid level of the raw material liquid stored therein is arranged on the first detection tank, and the liquid level height control signal detected by the first liquid level meter is correlated with the opening of the first return valve.
[0006] Furthermore, the system also includes a pH meter cleaning component, a second detection tank and a sewage discharge component. The pH meter cleaning component includes a cleaning water pool and a first cleaning nozzle. The first cleaning nozzle is arranged in the first detection tank and is used to clean the first pH meter and the inner wall of the first detection tank. A first cleaning pipe connected to the first cleaning nozzle is arranged on the cleaning water pool, and a first cleaning valve is arranged on the first cleaning pipe. The second detection tank is respectively provided with a second detection pipeline connected to the detection main pipeline, a second return pipeline, and a second discharge pipeline connected to the second return pipeline. A third pneumatic valve is arranged on the second detection pipeline, a second return valve is arranged on the second return pipeline, and a second discharge valve is arranged on the second discharge pipeline. A second pH meter for measuring the pH value of the raw material liquid stored therein is arranged on the second detection tank. The second pH meter is interlocked with the control signals of the feed pump, the regulating pump, and the regulating valve, respectively. The pH value detected by the second pH meter is respectively related to the power of the feed pump, the power of the regulating pump, and the opening of the regulating valve. The second detection tank is provided with a second level gauge for measuring the level of the raw material liquid stored therein, and the level height control signal detected by the second level gauge is correlated with the opening size of the second return valve. The sewage discharge component includes a first sewage discharge pipe, which is arranged at the bottom of the first detection tank, and a first sewage discharge valve is arranged on the first sewage discharge pipe.
[0007] Furthermore, the pH meter cleaning assembly also includes a second cleaning nozzle, which is arranged in the second detection tank and is used to clean the second pH meter and the inner wall of the second detection tank. A second cleaning pipe connected to the second cleaning nozzle is also arranged on the cleaning water pool, and a second cleaning valve is arranged on the second cleaning pipe. The sewage discharge assembly also includes a second sewage discharge pipe, which is arranged at the bottom of the second detection tank, and a second sewage discharge valve is arranged on the second sewage discharge pipe.
[0008] Furthermore, a fourth pneumatic valve is also arranged on the material delivery pipeline, and the fourth pneumatic valve is located at the front end of the material delivery pump.
[0009] Compared with the prior art, the automatic continuous pH detection and adjustment system of the utility model includes an adjustment tank, an acid-base tank, a collection tank and a first detection tank. The adjustment tank stores a raw material liquid whose pH value is to be adjusted, and the acid-base tank stores an acid or alkali liquid that can adjust the pH value of the raw material liquid in the adjustment tank to a set value. The adjustment tank is connected to the acid-base tank through an adjustment pipeline, and a regulating pump and a regulating valve are respectively arranged on the adjustment pipeline. A feed pipeline connected to the collection tank is arranged on the adjustment tank, and a feed pump and a first pneumatic valve are sequentially arranged on the feed pipeline. A first detection pipeline, a first return pipeline, and a first discharge pipeline connected to the first return pipeline are respectively arranged on the first detection tank, and a detection main pipeline is arranged between the feed pipeline and the first detection pipeline to communicate with each other. A first pH meter for measuring the pH value of the raw material liquid stored therein is provided on the first detection tank. The first pH meter is interlocked with the control signals of the feed pump, the regulating pump, and the regulating valve, respectively. The pH value detected by the first pH meter is correlated with the power of the feed pump, the power of the regulating pump, and the opening of the regulating valve. A first liquid level meter for measuring the liquid level of the raw material liquid stored therein is provided on the first detection tank. The liquid level height control signal detected by the first liquid level meter is correlated with the opening of the first return valve. The utility model is provided with a first detection tank, a total detection pipeline, a first detection pipeline, and a first return pipeline, and a first pH meter is installed on the first detection tank, so that the first pH meter can work in a relatively stable situation, obtain accurate detection data, reduce the error before and after the measurement data, and extend the service life of the first pH meter. The raw material liquid in the first detection tank is then refluxed into the feed pipeline through the first return pipeline to form a cycle, so that the first pH meter can continuously monitor the pH value of the raw material liquid in the feed pipeline in real time. Then, the pH value of the raw material liquid is adjusted according to the detection result of the first pH meter to stabilize the pH value of the raw material liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the structural principle of a preferred embodiment of the automatic continuous pH detection and adjustment system of the utility model. DETAILED DESCRIPTION
[0011] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0012] Please refer to Figure 1 As shown, a preferred embodiment of the automatic continuous pH detection and adjustment system of the utility model includes a regulating tank 1, an acid and alkali tank 2, a collecting tank 3, a first detection tank 4, a second detection tank 5, a pH meter cleaning component 6 and a sewage discharge component 7.
[0013] The regulating tank 1 stores the raw material liquid whose pH value is to be adjusted, and the acid-base tank 2 stores the acid or alkali liquid that can adjust the pH value of the raw material liquid in the regulating tank 1 to the set value. The regulating tank 1 and the acid-base tank 2 are connected through the regulating pipeline 9. The regulating pipeline 9 is respectively provided with a regulating pump 91 and a regulating valve 92. The regulating tank 1 is provided with a feed pipeline 8 connected with the collecting tank 3, and the feed pipeline 8 is sequentially provided with a feed pump 81 and a first pneumatic valve 82.
[0014] The first detection tank 4 is provided with a first detection pipeline 40, a first return pipeline 45, and a first discharge pipeline 46 connected to the first return pipeline 45, respectively. A detection main pipeline 10 is provided between the feeding pipeline 8 and the first detection pipeline 40 to communicate with each other. The first detection pipeline 40 is located at a position lower than the first return pipeline 45 on the first detection tank 4, and the first discharge pipeline 46 is located at a position lower than the first detection pipeline 40 on the first detection tank 4. The connection point between the detection main pipeline 10 and the feeding pipeline 8 is located at the rear end of the first pneumatic valve 82, and the connection point between the first return pipeline 45 and the feeding pipeline 8 is located at the front end of the feeding pump 81.
[0015] A second pneumatic valve 41 is provided on the first detection pipeline 40, a first return valve 47 is provided on the first return pipeline 45, and a first discharge valve 43 is provided on the first discharge pipeline 46. The first return pipeline 45 and the first discharge pipeline 46 are connected at the rear end of the first return valve 47. A first pH meter 42 for measuring the pH value of the raw material liquid stored therein is provided on the first detection tank 4. The first pH meter 42 is interlocked with the control signals of the feed pump 81, the regulating pump 91, and the regulating valve 92, respectively. The pH value detected by the first pH meter 42 is correlated with the power of the feed pump 81, the power of the regulating pump 91, and the opening of the regulating valve 92, respectively. A first liquid level meter 44 for measuring the liquid level of the raw material liquid stored therein is provided on the first detection tank 4. The liquid level height control signal detected by the first liquid level meter 44 is correlated with the opening of the first return valve 47.
[0016] The second detection tank 5 is provided with a second detection pipeline 50 connected to the detection main pipeline 10, a second return pipeline 55, and a second discharge pipeline 56 connected to the second return pipeline 55. The second detection pipeline 50 is located at a position lower than the second return pipeline 55 on the second detection tank 5, and the second discharge pipeline 56 is located at a position lower than the second detection pipeline 50 on the second detection tank 5. A third pneumatic valve 51 is provided on the second detection pipeline 50, a second return valve 57 is provided on the second return pipeline 55, and a second discharge valve 53 is provided on the second discharge pipeline 56. The second return pipeline 55 is connected to the second discharge pipeline 56 at the rear end of the second return valve 57. The second detection tank 5 is provided with a second pH meter 52 for measuring the pH value of the raw material liquid stored therein. The second pH meter 52 is interlocked with the control signals of the feed pump 81, the regulating pump 91, and the regulating valve 92, respectively. The pH value detected by the second pH meter 52 is correlated with the power of the feed pump 81, the power of the regulating pump 91, and the opening of the regulating valve 92. The second detection tank 5 is provided with a second liquid level meter 54 for measuring the liquid level of the raw material liquid stored therein, and the liquid level height control signal detected by the second liquid level meter 54 is correlated with the opening of the second return valve 57.
[0017] The pH meter cleaning assembly 6 includes a cleaning pool 61, a first cleaning nozzle 62, and a second cleaning nozzle 63. The first cleaning nozzle 62 is disposed in the first detection tank 4 and is used to clean the first pH meter 42 and the inner wall of the first detection tank 4. The second cleaning nozzle 63 is disposed in the second detection tank 5 and is used to clean the second pH meter 52 and the inner wall of the second detection tank 5.
[0018] The cleaning pool 61 is provided with a first cleaning pipe 64 connected to the first cleaning nozzle 62, and a first cleaning valve 66 is provided on the first cleaning pipe 64. The cleaning pool 61 is also provided with a second cleaning pipe 65 connected to the second cleaning nozzle 63, and a second cleaning valve 67 is provided on the second cleaning pipe 65.
[0019] The sewage discharge assembly 7 includes a first sewage discharge pipe 73 and a second sewage discharge pipe 74. The first sewage discharge pipe 73 is arranged at the bottom of the detection tank 4, and a first sewage discharge valve 71 is arranged on the first sewage discharge pipe 73. The second sewage discharge pipe 74 is arranged at the bottom of the second detection tank 5, and a second sewage discharge valve 72 is arranged on the second sewage discharge pipe 74.
[0020] A fourth pneumatic valve 83 is also provided on the material delivery pipeline 8 , and the fourth pneumatic valve 83 is located at the front end of the material delivery pump 81 .
[0021] The utility model also discloses an automatic continuous pH detection and adjustment method, which uses the automatic continuous pH detection and adjustment system as described above, and the method comprises the following steps:
[0022] Step 1: Turn on the regulating pump 91 to transport the acid or alkali solution in the acid-alkali tank 2 to the regulating tank 1 through the regulating pipeline 9 to adjust the pH value of the raw material solution in the regulating tank 1.
[0023] Step 2: Turn on the feed pump 81, open the fourth pneumatic valve 83, the first pneumatic valve 82, the second pneumatic valve 41 and the first return valve 47, and transfer the raw material liquid in the regulating tank 1 to the collecting tank 3 through the feed pipeline 8, wherein a part of the raw material liquid is transferred to the first detection tank 4 through the detection main pipeline 10 and the first detection pipeline 40. After entering the first detection tank 4, the raw material liquid flows back to the feed pipeline 8 from the first return pipeline 45, and the first pH meter 42 on the first detection tank 4 monitors the pH value of the raw material liquid in the first detection tank 4 in real time, so as to adjust the pH value of the raw material liquid in the first detection tank 4 to be within the set limit value.
[0024] If the detected pH value is less than the set lower limit, the first pH meter 42 sends adjustment signals to the feed pump 81, the regulating pump 91 and the regulating valve 92 respectively, adjusts the power of the regulating pump 91, adjusts the opening of the regulating valve 92, and adjusts the power of the feed pump 81 at the same time, until the pH value of the raw material liquid is detected to gradually increase to the lower limit. If the detected pH value is greater than the set upper limit, the first pH meter 42 sends adjustment signals to the feed pump 81, the regulating pump 91 and the regulating valve 92 respectively, adjusts the power of the regulating pump 91, adjusts the opening of the regulating valve 92, and adjusts the power of the feed pump 81 at the same time, until the pH value of the raw material liquid is detected to gradually decrease to the upper limit.
[0025] The opening of the second pneumatic valve 41 on the first detection pipeline 40 is adjusted to adjust the pressure and flow rate of the raw material liquid entering the first detection tank 4, so that the first pH meter 42 has a stable detection environment. The raw material liquid detected by the first pH meter 42 is almost synchronized with the raw material liquid in the feed pipeline 8.
[0026] The method further comprises the steps of cleaning the first detection tank 4 and the second detection tank 5 respectively:
[0027] Step 3: The system runs continuously for a set period of time, and the first pH meter 42 in the first detection tank 4 is cleaned: the second pneumatic valve 41 is closed, the first discharge valve 43 and the third pneumatic valve 51 are opened, and the raw material liquid in the first detection tank 4 is returned to the feeding pipeline 8 through the first discharge pipeline 46 and the first return valve 47, and at the same time, part of the raw material liquid in the feeding pipeline 8 is transported to the second detection tank 5 through the detection main pipeline 10 and the second detection pipeline 50. The first liquid level meter 44 in the first detection tank 4 monitors the liquid level of the raw material liquid in the first detection tank 4 in real time. When the liquid level of the raw material liquid in the first detection tank 4 drops to the set value, the first liquid level meter 44 transmits a signal to the first return valve 47, and the first return valve 47 is closed. The first sewage valve 71 and the first cleaning valve 66 are opened, and the cleaning water in the cleaning pool 61 passes through the first cleaning pipeline 64 and the first cleaning nozzle 62 to clean the first pH meter 42 and the inner wall of the first detection tank 4, and the cleaning wastewater is discharged from the first detection tank 4 through the first sewage pipeline 73. As the raw material liquid is transported to the second detection tank 5 through the second detection pipeline 50, the second liquid level meter 54 in the second detection tank 5 monitors the liquid level of the raw material liquid in the second detection tank 5 in real time. When the liquid level of the raw material liquid in the second detection tank 5 rises to the set value, the second liquid level meter 54 transmits a signal to the second return valve 57, the second return valve 57 is opened, and the raw material liquid flows back to the feeding pipeline 8 through the second return pipeline 55, and the second pH meter 52 starts to monitor the pH value of the raw material liquid in the detection tank 5 in real time.
[0028] Step 4: After the first pH meter 42 is cleaned, the first cleaning valve 66 and the first drain valve 71 are closed, and the first detection tank 4 is cleaned and put into use.
[0029] Step 5: The system runs to the next set time period, and the second pH meter 52 in the second detection tank 5 is cleaned: the third pneumatic valve 51 is closed, the second discharge valve 53 and the second pneumatic valve 41 are opened, and the raw material liquid in the second detection tank 5 is returned to the feeding pipeline 8 through the second discharge pipeline 56 and the second return valve 57. At the same time, part of the raw material liquid in the feeding pipeline 8 is transported to the first detection tank 4 through the detection main pipeline 10 and the first detection pipeline 40. The second liquid level meter 54 in the second detection tank 5 monitors the liquid level of the raw material liquid in the second detection tank 5 in real time. When the liquid level of the raw material liquid in the second detection tank 5 drops to the set value, the second liquid level meter 54 transmits a signal to the second return valve 57, and the second return valve 57 is closed. The second cleaning valve 67 and the second sewage valve 72 are opened, and the cleaning water in the cleaning pool passes through the second cleaning pipeline 65 and the second cleaning nozzle 63 to clean the second pH meter 52 and the inner wall of the second detection tank 5, and the cleaning sewage is discharged from the second detection tank 5 through the second sewage pipeline 74. After the second pH meter 52 is cleaned, the second cleaning valve 67 and the second drain valve 72 are closed, and the second detection tank 5 is cleaned and put into use.
[0030] The automatic continuous pH detection and adjustment system of the utility model is further described below through specific examples. Example
[0031] The raw liquid whose pH value is to be adjusted in this embodiment is sewage, and the pH value of the sewage after adjustment needs to be stabilized between 11 and 12. The pH value of the sewage stored in the adjustment tank 1 does not reach 11, and alkali solution needs to be added through the acid-base tank 2. Alkali solution is stored in the acid-base tank 2. The collection tank 3 is an anaerobic tower. After being processed by the automatic continuous pH detection and adjustment system of the utility model, the pH value of the sewage in the anaerobic tower is stabilized at 11 to 12.
[0032] The steps of adjusting the pH value of sewage by using the automatic continuous pH detection and adjustment method of the utility model include:
[0033] Step 11, start the regulating pump 91, and transport the alkali solution in the acid-alkali tank 2 to the regulating tank 1 through the regulating pipeline 9 to adjust the pH value of the raw material solution in the regulating tank 1.
[0034] Step 12, start the feed pump 81, open the fourth pneumatic valve 83, the first pneumatic valve 82, the second pneumatic valve 41 and the first return valve 47, and transfer the raw material liquid in the regulating tank 1 to the collecting tank 3 through the feed pipeline 8, wherein a part of the raw material liquid is transferred to the first detection tank 4 through the detection main pipeline 10 and the first detection pipeline 40. The raw material liquid after entering the first detection tank 4 flows back to the feed pipeline 8 from the first return pipeline 45, and the first pH meter 42 on the first detection tank 4 monitors the pH value of the raw material liquid in the first detection tank 4 in real time. If the detected pH value is less than the set lower limit 11, the first pH meter 42 sends a regulating signal to the feed pump 81, the regulating pump 91 and the regulating valve 92 respectively, increases the power of the regulating pump 91 to 80%, increases the opening of the regulating valve 92 to 70%, and reduces the power of the feed pump 81 to 30%, until the pH value of the raw material liquid is detected to gradually increase to the lower limit 11. If the detected pH value is greater than the set upper limit of 12, the first pH meter 42 sends adjustment signals to the feed pump 81, the regulating pump 91 and the regulating valve 92 respectively, reducing the power of the regulating pump 91 to 65%, reducing the opening of the regulating valve 92 to 50%, and adjusting the power of the feed pump 81 at the same time until the pH value of the raw material liquid is detected to gradually decrease to the upper limit of 12.
[0035] Step 13, the system runs continuously for a set time period of 24 hours, and the first pH meter 42 is cleaned: the second pneumatic valve 41 is closed, the first discharge valve 43 and the third pneumatic valve 51 are opened, and the raw material liquid in the first detection tank 4 is returned to the feeding pipeline 8 through the first discharge pipeline 46 and the first return valve 47, and at the same time, part of the raw material liquid in the feeding pipeline 8 is transported to the second detection tank 5 through the detection main pipeline 10 and the second detection pipeline 50. The first liquid level meter 44 in the first detection tank 4 monitors the liquid level of the raw material liquid in the first detection tank 4 in real time. When the liquid level of the raw material liquid in the first detection tank 4 drops to the set value, the first liquid level meter 44 transmits a signal to the first return valve 47, and the first return valve 47 is closed. The first sewage valve 71 and the first cleaning valve 62 are opened, and the cleaning water in the cleaning pool 61 passes through the first cleaning pipeline 64 and the first cleaning nozzle 62 to clean the first pH meter 42 and the inner wall of the first detection tank 4. The cleaning time is 30s, and the cleaning wastewater is discharged from the first detection tank 4 through the first sewage pipe 71. As the raw material liquid is transported to the second detection tank 5 through the second detection pipe 50, the second liquid level meter 54 in the second detection tank 5 monitors the liquid level of the raw material liquid in the second detection tank 5 in real time. When the liquid level of the raw material liquid in the second detection tank 5 rises to the set value, the second liquid level meter 54 transmits a signal to the second return valve 57, the second return valve 57 opens, and the raw material liquid flows back to the feed pipe 8 through the second return pipe 55, and the second pH meter 52 starts to monitor the pH value of the raw material liquid in the detection tank 5 in real time.
[0036] Step 14: After the first pH meter 42 is cleaned, the first cleaning valve 62 is closed, and after the cleaning wastewater is discharged, the first sewage valve 71 is closed, and the first detection tank 4 is cleaned and put into use.
[0037] Step 15, cleaning the second pH meter 52 in the second detection tank 5: close the third pneumatic valve 51, open the second discharge valve 53 and the second pneumatic valve 41, return the raw material liquid in the second detection tank 5 to the feeding pipeline 8 through the second discharge pipeline 56 and the second return valve 57, and at the same time, part of the raw material liquid in the feeding pipeline 8 is transported to the first detection tank 4 through the detection main pipeline 10 and the first detection pipeline 40. The second liquid level meter 54 in the second detection tank 5 monitors the liquid level of the raw material liquid in the second detection tank 5 in real time. When the liquid level of the raw material liquid in the second detection tank 5 drops to the set value, the second liquid level meter 54 transmits a signal to the second return valve 57, and the second return valve 57 is closed. Open the second cleaning valve 67 and the second sewage valve 72, and the cleaning water in the cleaning pool passes through the second cleaning pipeline 65 and the second cleaning nozzle 63 to clean the second pH meter 52 and the inner wall of the second detection tank 5. After 20 seconds of cleaning, the second cleaning valve 67 is closed. The cleaning wastewater is discharged from the second detection tank 5 through the second sewage pipe 74. After the second pH meter 52 is cleaned, the second cleaning valve 67 and the second sewage valve 72 are closed, and the second detection tank 5 is cleaned and ready for use.
[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An automatic continuous pH detection and adjustment system, comprising an adjustment tank, an acid-base tank and a collection tank, wherein the adjustment tank stores a raw material liquid whose pH value is to be adjusted, and the acid-base tank stores an acid or alkali liquid capable of adjusting the pH value of the raw material liquid in the adjustment tank to a set value, the adjustment tank and the acid-base tank are connected through an adjustment pipeline, and an adjustment pump and an adjustment valve are respectively arranged on the adjustment pipeline, and a feed pipeline connected to the collection tank is arranged on the adjustment tank, and a feed pump and a first pneumatic valve are arranged on the feed pipeline in sequence, characterized in that: The system further comprises a first detection tank and a detection main pipeline, wherein a first detection pipeline, a first return pipeline, and a first discharge pipeline connected to the first return pipeline are respectively arranged on the first detection tank, the detection main pipeline is respectively connected to the feed pipeline and the first detection pipeline, the first detection pipeline is located at a position on the first detection tank lower than the position of the first return pipeline on the first detection tank, the connection point between the detection main pipeline and the feed pipeline is located at the rear end of the first pneumatic valve, the connection point between the first return pipeline and the feed pipeline is located at the front end of the feed pump, the first discharge pipeline is located at a position on the first detection tank lower than the position of the first detection pipeline on the first detection tank, and in the first detection tank, the first return pipeline is located at a position on the first detection tank. A second pneumatic valve is arranged on the pipeline, a first return valve is arranged on the first return pipeline, and a first discharge valve is arranged on the first discharge pipeline; a first pH meter for measuring the pH value of the raw material liquid stored therein is arranged on the first detection tank, the first pH meter is interlocked with the control signals of the feed pump, the regulating pump and the regulating valve respectively, and the pH value detected by the first pH meter is respectively related to the power of the feed pump, the power of the regulating pump and the opening of the regulating valve; a first liquid level meter for measuring the liquid level of the raw material liquid stored therein is arranged on the first detection tank, and the liquid level height control signal detected by the first liquid level meter is related to the opening of the first return valve.
2. The automatic continuous pH detection and adjustment system according to claim 1, characterized in that: The system also includes a pH meter cleaning component, a second detection tank and a sewage discharge component. The pH meter cleaning component includes a cleaning water pool and a first cleaning nozzle. The first cleaning nozzle is arranged in the first detection tank. A first cleaning pipe connected to the first cleaning nozzle is arranged on the cleaning water pool, and a first cleaning valve is arranged on the first cleaning pipe; the second detection tank is respectively provided with a second detection pipeline connected to the detection main pipeline, a second return pipeline, and a second discharge pipeline connected to the second return pipeline, a third pneumatic valve is arranged on the second detection pipeline, a second return valve is arranged on the second return pipeline, and a second discharge valve is arranged on the second discharge pipeline; in the second detection tank, A second pH meter for measuring the pH value of the raw material liquid stored therein is arranged on the tank, and the second pH meter is interlocked with the control signals of the feed pump, the regulating pump and the regulating valve respectively, and the pH value detected by the second pH meter is respectively correlated with the power of the feed pump, the power of the regulating pump and the opening of the regulating valve; a second liquid level gauge for measuring the liquid level of the raw material liquid stored therein is arranged on the second detection tank, and the liquid level height control signal detected by the second liquid level gauge is correlated with the opening of the second return valve; the sewage discharge component includes a first sewage discharge pipe, the first sewage discharge pipe is arranged at the bottom of the first detection tank, and a first sewage discharge valve is arranged on the first sewage discharge pipe.
3. The automatic continuous pH detection and adjustment system according to claim 2, characterized in that: The pH meter cleaning assembly also includes a second cleaning nozzle, which is arranged in the second detection tank and is used to clean the second pH meter and the inner wall of the second detection tank. A second cleaning pipe connected to the second cleaning nozzle is also arranged on the cleaning water pool, and a second cleaning valve is arranged on the second cleaning pipe; the sewage discharge assembly also includes a second sewage discharge pipe, which is arranged at the bottom of the second detection tank, and a second sewage discharge valve is arranged on the second sewage discharge pipe.
4. The automatic continuous pH detection and adjustment system according to claim 1, characterized in that: A fourth pneumatic valve is also arranged on the material delivery pipeline, and the fourth pneumatic valve is located at the front end of the material delivery pump.