CN217561955U - Recirculated cooling water acidification controlling means - Google Patents
Recirculated cooling water acidification controlling means Download PDFInfo
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- CN217561955U CN217561955U CN202221482125.9U CN202221482125U CN217561955U CN 217561955 U CN217561955 U CN 217561955U CN 202221482125 U CN202221482125 U CN 202221482125U CN 217561955 U CN217561955 U CN 217561955U
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- alkalinity
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Abstract
The utility model discloses a circulating cooling water acidification control device, which comprises a sampling pump, a filter discharge valve, a detection electric valve, an alkalinity on-line monitor, a controller, an acidification control valve and an acid storage tank; a water outlet of the cooling tower circulating water tank is sequentially connected with a filter and an alkalinity on-line monitor through a sampling pump; a water outlet of the alkalinity on-line monitor is connected to a cooling tower circulating water pool; a liquid outlet of the acid storage tank is connected to a circulating water tank of the cooling tower through a pipeline, and an acid adding control valve is arranged on the liquid outlet of the acid storage tank; the alkalinity on-line monitoring instrument is electrically connected with the input end of the controller, and the sampling pump, the filter and the acidification control valve are respectively and electrically connected with the output end of the controller. The utility model discloses the method can realize the on-line measuring of recirculated cooling water basicity under the condition that need not artificial intervention to control recirculated cooling water's the volume of adding the acidity according to the on-line measuring result of basicity.
Description
Technical Field
The utility model relates to an industry recirculated cooling water operation control technical field especially relates to a recirculated cooling water acidification controlling means.
Background
In industrial production, the cooling of the equipment, materials or media is predominantly carried out by means of industrial circulating cooling water. In the operation of an industrial circulating water system, circulating cooling water is continuously concentrated along with the temperature rise, heat dissipation and evaporation and is easy to scale. Once the industrial circulating cooling water is scaled, the operation of the equipment is influenced if the industrial circulating cooling water is light, and the equipment is scrapped or stopped for maintenance if the industrial circulating cooling water is heavy. In order to prevent scaling in industrial circulating water systems, circulating cooling water is often neutralized by adding acid. At present, the pH value of circulating cooling water or the alkalinity manually detected is generally adopted as a control index for controlling the acid adding amount of the circulating cooling water in actual operation. Because the pH of the circulating cooling water is only a comprehensive index of plasma hydrolysis of carbonate and bicarbonate in the circulating cooling water, the reaction to alkalinity is insensitive, because no element capable of industrial control is arranged, the detection can only be carried out manually, the manual alkalinity detection is slow, the workload is large, the untimely control, the inexistence or the lag of operation control of acid addition are often caused, the scaling of the circulating cooling water is easily caused, or the corrosion of system materials is caused by adding excessive acidic substances.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of above-mentioned prior art, the utility model provides a recirculated cooling water acidification controlling means, this utility model discloses an arrange the element of the industrial control of being convenient for on recirculated cooling water acidification system, controller and component connection operation control replace artifical detection feedback, have better, timely, accurately control recirculated cooling water acidification and handle the effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a circulating cooling water acidification control device comprises a sampling pump, a filter discharge valve, a detection electric valve, an alkalinity on-line monitor, a controller, an acidification control valve and an acid storage tank;
a water outlet of the cooling tower circulating water tank is sequentially connected with a filter and an alkalinity on-line monitor through a sampling pump; a water outlet of the alkalinity on-line monitor is connected to a cooling tower circulating water pool;
a liquid outlet of the acid storage tank is connected to a circulating water tank of the cooling tower through a pipeline, and an acid adding control valve is arranged on the liquid outlet of the acid storage tank;
the alkalinity on-line monitor is electrically connected with the input end of the controller, and the sampling pump, the filter and the acidification control valve are respectively electrically connected with the output end of the controller.
As an alternative scheme, the filter is further provided with a flushing pipeline, one end of the flushing pipeline is connected with a discharge port of the filter, and the other end of the flushing pipeline is connected with a water outlet of the alkalinity on-line monitor.
Alternatively, a filter discharge valve is arranged on the discharge port of the filter, and the filter discharge valve is electrically connected with the output end of the controller.
As an alternative, a detection electric valve is arranged on a liquid outlet in front of the filter and the alkalinity on-line monitor; the detection electric valve is electrically connected with the output end of the controller.
Alternatively, the controller is a PLC.
Alternatively, corrosion-resistant pipelines are adopted for all pipelines of the circulating cooling water acidification control device.
Alternatively, the height of the liquid outlet of the acid storage tank is higher than that of the circulating water tank of the cooling tower.
Optionally, the liquid outlet of the acid storage tank is also provided with an acid adding pump.
Optionally, the controller is further connected with a display and an alarm.
Compared with the prior art, the utility model discloses possess following advantage:
the utility model provides a recirculated cooling water adds sour controlling means, through arrange the element of the industrial control of being convenient for on recirculated cooling water adds sour system, controller and component connection operation control replace artifical detection feedback, have better, timely, accurately control recirculated cooling water and add the effect of acid treatment. Particularly, the acid adding amount of the circulating cooling water is controlled according to the on-line detection result of the alkalinity of the circulating cooling water, manual intervention is not needed, and the stability, the safety and the control level of the acid adding treatment of the circulating cooling water are greatly improved.
Drawings
FIG. 1 is a control device for adding acid to circulating cooling water;
fig. 2 is a flow chart of a control method of the circulating cooling water acidification control device.
Wherein, 1, a sampling pump; 2. a filter; 3. a filter drain valve; 4. detecting the electric valve; 5. an alkalinity on-line monitor; 6. a controller; 7. and (4) adding an acid control valve.
Detailed Description
The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses a recirculated cooling water acidification control device, including sampling pump 1, filter 2, filter discharge valve 3, detection motorised valve 4, basicity on-line monitor 5, controller 6, acidification control valve 7 and sour storage tank 8;
a water outlet of a cooling tower circulating water tank 10 is sequentially connected with a filter 2 and an alkalinity on-line monitor 5 through a sampling pump 1; the water outlet of the alkalinity on-line monitor 5 is connected to a cooling tower circulating water tank 10; a liquid outlet of the acid storage tank 8 is connected to a cooling tower circulating water tank 10 through a pipeline, and an acid adding control valve 7 is arranged on the liquid outlet of the acid storage tank 8; the alkalinity on-line monitoring instrument 5 is electrically connected with the input end of the controller 6, and the sampling pump 1, the filter 2 and the acidification control valve 7 are respectively and electrically connected with the output end of the controller 6.
The utility model provides a recirculated cooling water adds sour controlling means mainly is at hardware arrangement mode, increases control and the industrial control's of being convenient for component, if basicity on-line monitoring appearance 5, add sour control valve 7, the operation control is connected with the component to the controller, replaces artifical detection feedback, and timely automatic adjustment adds sour, has the effect of better, timely, accurately controlling recirculated cooling water and adding sour processing. The event the utility model discloses not specifically inject how the controller carries out accurate control and control algorithm's execution, adopt industrial control's embedded controller during practical application, purchase concrete control content can, do not regard as the protection content of this application.
In addition, the filter 2 is installed at the outlet of the sampling pump 1. The alkalinity on-line monitor 5 can automatically monitor the alkalinity of the circulating cooling water on line. The controller 6 can control the sampling pump 1, the alkalinity on-line monitor 5 and all valves in the device.
The controller 6 can adjust the acid adding control valve 7 according to the detection result of the alkalinity on-line monitor 5 to control the acid adding amount.
As an alternative embodiment, the filter 2 is further provided with a flushing pipeline, one end of the flushing pipeline is connected with the discharge port of the filter 2, and the other end of the flushing pipeline is connected with the water outlet of the alkalinity on-line monitor 5. The flushing pipeline can be used for testing management again, and the testing precision is improved. The discharge port of the filter 2 is provided with a filter discharge valve 3, and the filter discharge valve 3 is electrically connected with the output end of the controller 6. A detection electric valve 4 is arranged on a liquid outlet in front of the filter 2 and the alkalinity on-line monitor 5; the detection electric valve 4 is electrically connected with the output end of the controller 6.
The controller 6 is a PLC. The industrial simple control mostly adopts PLC, and the PLC controller only carries out control according to comparison with a set value. The method can be realized only by the basic functions of the PLC controller without adopting complex algorithms.
And the pipelines of the circulating cooling water acidification control device are all corrosion-resistant pipelines. Such as ceramic composite steel pipes, bonded steel pipes, cast stone composite steel pipes and cast steel pipes. Improve the corrosion resistance and prolong the service life.
As an alternative embodiment, the height of the liquid outlet of the acid storage tank 8 is higher than that of the cooling tower circulating water pool 10. Automatic acid addition can be achieved by gravity. Of course, the acid used in industrial production is relatively large, and the liquid outlet of the acid storage tank 8 is also provided with an acid adding pump. The acid adding pump is used for realizing accurate acid adding and efficient acid pumping.
To prevent other malfunctions, a display and an alarm are also connected to the controller 6. The fault can be displayed in real time and is warned by an alarm.
Based on above-mentioned measuring device, its concrete working process does:
opening the sampling pump 1 and the filter discharge valve 3, closing the electric valve 4 of the detection unit, and washing the filter 2 with circulating cooling water; after the filter 2 is fully washed, closing the filter discharge valve 3, simultaneously opening the detection electric valve 4, and washing the pipeline of the alkalinity online monitor 5; after the pipeline of the alkalinity on-line monitor 5 is washed clean, the alkalinity on-line monitor 5 is opened to detect the alkalinity of the circulating cooling water sample, and the controller 6 adjusts the pH control valve 7 according to the detection result of the alkalinity on-line monitor 5 to control the pH value; and finally, closing the sampling pump 1, the filter discharge valve 3 and the detection electric valve 4 and waiting for the next detection result.
Based on the control method of the circulating cooling water acidification control device, the acidification control valve is adjusted according to the detection result of the alkalinity on-line monitor to control the acidification amount of the circulating cooling water.
Referring to fig. 2, the control method based on the circulating cooling water acidification control device includes the following steps:
this device uses and is surveyed the acidification and handle recirculated cooling water sample, fully washes pretreatment filter and basicity on-line measuring pipeline, detects behind the basicity of being surveyed recirculated cooling water sample through basicity on-line monitoring appearance, transmits the testing result to the controller and judges to control the acidification control valve according to the judged result and control recirculated cooling water's acidification volume.
The method of the utility model can realize the on-line measurement of the alkalinity of the acid-adding treatment circulating cooling water without manual intervention; and the acid adding amount of the circulating cooling water is controlled by adjusting an acid adding control valve according to the detection result of the alkalinity on-line monitor.
The following description will further describe the embodiments of the present invention with reference to fig. 1 and 2.
Examples
As shown in FIG. 1, the inlet pipe and the discharge port of the sampling pump were connected to the acid treatment circulating cooling water.
As shown in fig. 2, when the controller 6 sends out a measurement command, the sampling pump 1 and the filter discharge valve 3 are opened, the detection unit electric valve 4 is closed, and the filter 2 is flushed with circulating water; after the filter 2 is fully washed, closing the filter discharge valve 3, and simultaneously opening the detection unit motor 4 to wash the pipeline of the alkalinity on-line monitor; after a pipeline of the alkalinity on-line monitor is flushed, detecting the alkalinity of the circulating cooling water sample through the alkalinity on-line monitor 5, transmitting a detection result to the controller 6 for judgment, and controlling the acidity control valve 7 according to a judgment result to control the acidity of the circulating cooling water; and finally, closing the sampling pump 1, the filter discharge valve 3 and the detection electric valve 4 and waiting for the next detection result.
For more detailed description, the specific steps of the present invention are:
after the controller 6 issues a measurement command, the sampling pump 1 and the filter discharge valve 3 are opened, the detection unit electric valve 4 is closed, and the filter 2 is flushed with circulating water for 90s, so that the filter 2 is completely flushed and filled with the measured water sample.
The filter drain valve 3 is closed and at the same time the detection unit motor 4 is opened, flushing the line 60s of the monitoring and control unit.
The controller 6 sends a measurement instruction to the alkalinity on-line monitor 5 to detect the alkalinity of the circulating cooling water sample.
The detection result is transmitted to the controller 6 for judgment, and the acid adding amount of the circulating cooling water is controlled by controlling the acid adding control valve 7 according to the judgment result.
The sampling pump 1, the filter discharge valve 3 and the detection unit electric valve 4 are closed, and the next detection result is waited.
To sum up, the device of the utility model discloses device simple structure can realize adding the circulating water basicity on-line measuring of sour processing under the condition that need not artificial intervention to the acid value of recirculated cooling water is controlled according to the result of on-line measuring recirculated cooling water basicity.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A circulating cooling water acidification control device is characterized by comprising a sampling pump (1), a filter (2), a filter discharge valve (3), a detection electric valve (4), an alkalinity on-line monitor (5), a controller (6), an acidification control valve (7) and an acid storage tank (8);
a water outlet of a cooling tower circulating water tank (10) is sequentially connected with a filter (2) and an alkalinity on-line monitor (5) through the sampling pump (1); the water outlet of the alkalinity on-line monitor (5) is connected to a cooling tower circulating water pool (10);
a liquid outlet of the acid storage tank (8) is connected to a cooling tower circulating water tank (10) through a pipeline, and an acid adding control valve (7) is arranged on the liquid outlet of the acid storage tank (8);
alkalinity on-line monitoring appearance (5) are connected with the input electricity of controller (6), sample pump (1), filter (2) and acidification control valve (7) are equallyd divide and are connected with the output electricity of controller (6) respectively.
2. The recirculated cooling water acidification control device according to claim 1, wherein the filter (2) is further provided with a flushing pipeline, one end of the flushing pipeline is connected with a discharge port of the filter (2), and the other end of the flushing pipeline is connected with a water outlet of the alkalinity on-line monitor (5).
3. The recirculated cooling water acidification control device according to claim 2, wherein the discharge port of the filter (2) is provided with a filter discharge valve (3), and the filter discharge valve (3) is electrically connected with the output end of the controller (6).
4. The circulating cooling water acidification control device as claimed in claim 1, wherein a detection electric valve (4) is arranged on a liquid outlet in front of the filter (2) and the alkalinity online monitor (5); the detection electric valve (4) is electrically connected with the output end of the controller (6).
5. The recirculated cooling water acidification control device according to claim 1, wherein the controller (6) is a PLC.
6. The circulating cooling water acidification control device according to claim 1, wherein the pipelines of the circulating cooling water acidification control device are corrosion-resistant pipelines.
7. The circulating cooling water acidification control device as claimed in claim 1, wherein the height of the liquid outlet of the acid storage tank (8) is higher than that of the circulating water tank (10) of the cooling tower.
8. The recirculated cooling water acidification control device according to claim 1, wherein the liquid outlet of the acid storage tank (8) is further provided with an acidification pump.
9. The recirculated cooling water acidification control device of claim 1, wherein the controller (6) is further connected with a display and an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221482125.9U CN217561955U (en) | 2022-06-14 | 2022-06-14 | Recirculated cooling water acidification controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221482125.9U CN217561955U (en) | 2022-06-14 | 2022-06-14 | Recirculated cooling water acidification controlling means |
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| Publication Number | Publication Date |
|---|---|
| CN217561955U true CN217561955U (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221482125.9U Active CN217561955U (en) | 2022-06-14 | 2022-06-14 | Recirculated cooling water acidification controlling means |
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| Country | Link |
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| CN (1) | CN217561955U (en) |
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2022
- 2022-06-14 CN CN202221482125.9U patent/CN217561955U/en active Active
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