A water quality monitoring and regulating device and control method for an industrial circulating cooling water system

Abstract

The present invention discloses a water quality monitoring and regulating device for an industrial circulating cooling water system, comprising a circulating water pool, wherein the circulating water pool is provided with at least one sampling mechanism, and the circulating water pool is provided with an infusion tube for supplying a reagent from a dosing device into the circulating water pool and for outputting a water sample in the circulating water pool into the sampling mechanism. The present invention, by providing an infusion tube connected to the sampling mechanism and the dosing device, serves multiple purposes, not only improving the mixing efficiency of the reagent and the circulating water, but also enabling sampling personnel to quickly collect water samples at the required points and depths, thereby increasing the convenience of manual sampling. By pre-setting multiple sampling mechanisms before sampling, during sampling, after the sampling mechanism is placed in place, there is no need to continue operating, and the sampling and waste liquid collection work can be completed automatically, allowing sampling personnel to sample multiple points simultaneously, thereby improving sampling efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of copper smelting, and in particular to a water quality monitoring and regulating device and a control method for an industrial circulating cooling water system. Background Art

[0002] Indirectly cooled heat exchangers utilizing industrial circulating water are widely used in copper smelters' production processes. As the number of heat exchangers increases, the conductivity of the circulating water can easily exceed 2000μs / mm, making the water quality of industrial circulating water systems a major factor limiting heat transfer efficiency. Poor water quality frequently leads to production disruptions, making the control of industrial circulating water quality a hot topic of research.

[0003] In the current industrial circulating water quality monitoring and regulation system, conductivity meters and pH meters are used to monitor the circulating water quality. When the water quality exceeds the set value, the automatic control system is used to control the discharge of part of the sewage and replenish new water. Then, manual sampling and testing are performed regularly to adjust the water quality control parameters. Although this water quality monitoring and regulation system can adjust the water quality in a timely manner so that the water quality meets the operating requirements of the heat exchanger, during the manual sampling process, the sampling pass rate of the water sample is easily affected by the technical level of the sampling personnel. Therefore, multi-point sampling is often required to improve the detection accuracy. However, since the sampling steps are cumbersome and sampling can only be done one by one, the sampling is time-consuming and inefficient. Summary of the Invention

[0004] The purpose of the present invention is to address the above-mentioned deficiencies and provide a water quality monitoring and regulation device and control method for an industrial circulating cooling water system, so as to achieve the purpose of reducing operating costs and improving operating efficiency.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: a water quality monitoring and regulating device for an industrial circulating cooling water system, comprising a circulating water pool, the circulating water pool being provided with at least one sampling mechanism, the circulating water pool being provided with an infusion pipe for supplying a reagent from a dosing device into the circulating water pool and for outputting a water sample in the circulating water pool to the sampling mechanism; the infusion pipe comprising a main pipe located at the top of the circulating water pool and connected to a drug outlet of the dosing device, the main pipe being provided with at least one branch pipe communicating with the main pipe, the branch pipe being provided with at least one T-shaped pipe plugged into the circulating water pool, the top of the T-shaped pipe being provided with two downwardly bent butt ends, the two butt ends being respectively connected to the branch pipe and the sampling mechanism;

[0006] The circulating water pool is provided with a first blocking mechanism capable of changing the connection state between the butt end and the branch pipe, and a second blocking mechanism capable of changing the connection state between the butt end and the sampling mechanism is provided between the sampling mechanism and the T-shaped tube.

[0007] Furthermore, a water supply pump is provided at the outlet of the circulating water pool, and a pH meter with a remote signal transmission is provided at the outlet of the water supply pump to monitor abnormal changes in the pH value of the circulating water in the circulating water pool; a conductivity meter is provided on the circulating water pool, and a sewage pneumatic valve and a flow meter are provided at the outlet branch of the water supply pump to perform sewage replacement on the circulating water to reduce the conductivity;

[0008] The circulating water pool is provided with a liquid level meter and a water supply pneumatic valve.

[0009] Furthermore, a multi-media suspension filter is provided in the circulating water pool to remove suspended impurities in the circulating water.

[0010] Furthermore, the sampling mechanism includes a sampling tank, which is provided with a partition plate that can move back and forth in the inner cavity of the sampling tank and remain sealed during movement, and the partition plate divides the inner cavity of the sampling tank into a waste liquid collection chamber and a sample collection chamber, and the sampling tank is respectively provided with a first manual valve connected to the waste liquid collection chamber and the sample collection chamber, and the first manual valve is detachably provided with a sealing cover at one end away from the sampling tank, and the top of the sampling tank is respectively provided with a liquid inlet hole connected to the waste liquid collection chamber and the sample collection chamber, and the sampling tank is provided with a sealing cover for A plurality of limit blocks for limiting the movement of the partition plate between the two liquid inlet holes, a cover body for covering the two liquid inlet holes is provided on the top of the sampling tank, sliders for blocking the two liquid inlet holes are slidably provided in the cover body, a slide groove for reciprocating movement of the slider is provided in the cover body, the slider can maintain a dynamic seal when moving in the slide groove, a connecting rod for driving the two sliders to move synchronously is provided between the two sliders, the connecting rod and the partition plate are provided with magnets that attract each other by magnetic force, and a second manual valve connected to the slide groove is provided on the top of the cover body;

[0011] When the volume of the waste liquid collection chamber is at its minimum, the second manual valve can only communicate with the waste liquid collection chamber through the liquid inlet hole; when the sample collection chamber is at its minimum, the second manual valve can only communicate with the sample collection chamber through the liquid inlet hole.

[0012] Furthermore, at least one tension spring is provided in the waste liquid collection chamber for delaying the movement of the partition plate toward the sample collection chamber.

[0013] Furthermore, the first blocking mechanism includes at least one pushing component disposed on the top of the circulating water pool, the pushing component being provided with a push plate, the pushing component being used to drive the push plate to move along the branch pipe axis, the push plate being provided with an arc-shaped column for blocking the connection between the branch pipe and the T-shaped tube and being inserted into the branch pipe along the branch pipe axis, the arc-shaped column maintaining a dynamic seal with the branch pipe during movement, and a through hole being provided on the arc-shaped column for communicating between the branch pipe and the T-shaped tube;

[0014] The cross-sectional area of ​​the arc-shaped column is smaller than the cross-sectional area of ​​the inner cavity of the branch tube.

[0015] Furthermore, the second blocking mechanism includes a blocking component for blocking the T-shaped tube and a blocking release component for releasing the blocking state of the blocking component, the blocking component is arranged in the docking end connected to the sampling mechanism, and the blocking release component is arranged at the end of the second manual valve away from the cover body;

[0016] The blocking assembly includes a fixing seat and a blocking ring provided in the butt end. The blocking ring is located at the bottom of the fixing seat. The fixing seat is provided with a liquid guide hole for liquid circulation. A spring is provided at the bottom of the fixing seat. A blocking ball is provided at the bottom of the spring and is located at the top of the blocking ring. The diameter of the blocking ball is larger than the inner diameter of the blocking ring. When the blocking ball contacts the blocking ring, the spring is in a compressed state.

[0017] The blocking release component includes a hollow stud arranged at the end of the second manual valve away from the cover body, a screw sleeve threadedly connected to the hollow stud is sleeved on the hollow stud, at least one liquid guide groove is provided on the top of the screw sleeve, and an inlet and outlet hole adapted to the screw sleeve is provided on the docking end.

[0018] A method for controlling a water quality monitoring and regulating device for an industrial circulating cooling water system, comprising any one of the water quality monitoring and regulating devices for an industrial circulating cooling water system, the method being as follows:

[0019] By interlocking the conductivity meter with the sewage pneumatic valve, when the conductivity meter detects that the conductivity of the circulating water in the circulating water pool exceeds 2000μs / mm, the sewage pneumatic valve is controlled to open, and part of the circulating water in the circulating water pool is discharged into the general production wastewater system, and is classified as recycled water after qualified treatment;

[0020] Water is added to the circulating water pool through the water supply pneumatic valve, where the water supply sources include new production water and factory recycled water, until the liquid level in the circulating water pool reaches the set value;

[0021] Bactericides and scale inhibitors are added to the circulating water pool in a regular and quantitative manner through the dosing equipment. When the chemicals are input into the circulating water pool, the pushing component is controlled to move the push plate before the injection, so that the perforation moves to a state of communication with the T-shaped pipe. Then the dosing equipment is controlled to operate so that the chemicals enter the circulating water pool along the infusion pipe. After the water is replenished, the bactericides and scale inhibitors need to be added to the circulating water pool according to the amount of replenished water.

[0022] The first manual valve is connected to the vacuum pump to extract the gas inside the sampling tank, so that the partition plate moves to the minimum state of the waste liquid collection chamber under the action of negative pressure, and then the prepared sampling mechanism is moved to the T-shaped tube corresponding to the sampling point, so that the sealing release component is aligned with the sealing component, and then the screw sleeve is rotated to move the screw sleeve upward to push the sealing ball to release the sealing state. Then, by opening the second manual valve, the liquid in the circulating water pool enters the waste liquid collection chamber first under the action of negative pressure. After that, due to the decrease in the negative pressure in the waste liquid collection chamber, the partition plate gradually moves toward the sample collection chamber, and the slider is driven to move by the magnetic force of the magnet, so that the liquid sucked by the negative pressure only enters the sample collection chamber after a period of time, thereby completing the sample collection. By testing the collected samples, the TDS, conductivity, pH, turbidity, suspended matter, and chloride ion indicators are analyzed and tested, and the water quality control parameters are adjusted in time according to the test results.

[0023] The beneficial effects of the present invention are embodied in:

[0024] The present invention provides an infusion tube connected to the sampling mechanism and the dosing equipment, and distributes multiple T-shaped tubes at the sampling points of the circulating water pool in advance according to sampling requirements. One tube can be used for multiple purposes, which not only improves the mixing efficiency of the medicine and the circulating water, but also enables the sampling personnel to quickly collect water samples at the required points and depths, thereby increasing the convenience of manual sampling. By preparing multiple sampling mechanisms in advance before sampling, when sampling, it is only necessary to put the sampling mechanism in place without continuing to operate. The sampling and waste liquid collection work can be completed automatically, allowing the sampling personnel to sample at multiple points at the same time, thereby improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional view of the present invention;

[0026] Figure 2 It is a partial cross-sectional view of the first blocking mechanism and the infusion tube of the present invention;

[0027] Figure 3 A partial cross-sectional view of the sampling mechanism and the second blocking mechanism of the present invention;

[0028] Figure 4 It is a partial view of the second blocking mechanism of the present invention.

[0029] In the picture:

[0030] 1. Circulating water pool; 2. Sampling mechanism; 201. Sampling tank; 202. Partition plate; 203. First manual valve; 204. Sealing cover; 205. Liquid inlet; 206. Limit block; 207. Cover; 208. Slider; 209. Slide; 210. Connecting rod; 211. Magnet; 212. Second manual valve; 3. Infusion tube; 31. Main tube; 32. Branch tube; 33. T-tube; 4. First sealing mechanism; 41. Pushing component; 42. Push plate; 43. Arc column; 44. Perforation; 5. Second sealing mechanism; 51. Sealing assembly; 511. Fixing seat; 512. Sealing ring; 513. Spring; 514. Sealing ball; 52. Sealing release assembly; 521. Hollow stud; 522. Screw sleeve; 6. Tension spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-4 The present invention discloses a water quality monitoring and regulating device for an industrial circulating cooling water system, comprising a circulating water pool 1, on which at least one sampling mechanism 2 is provided, and a liquid infusion pipe 3 for supplying a medicine from a dosing device into the circulating water pool 1 and for outputting a water sample in the circulating water pool 1 to the sampling mechanism 2; the liquid infusion pipe 3 comprises a main pipe 31 located at the top of the circulating water pool 1 and connected to a medicine outlet of the dosing device, the main pipe 31 being provided with at least one branch pipe 32 communicating with the main pipe 31, the branch pipe 32 being provided with at least one T-shaped pipe 33 plugged into the circulating water pool 1, the top of the T-shaped pipe 33 being provided with two downwardly bent butt joint ends, the two butt joint ends being respectively connected to the branch pipe 32 and the sampling mechanism 2;

[0033] The circulating water pool 1 is provided with a first blocking mechanism 4 capable of changing the connection state between the butt end and the branch pipe 32 , and a second blocking mechanism 5 capable of changing the connection state between the butt end and the sampling mechanism 2 is provided between the sampling mechanism 2 and the T-shaped pipe 33 .

[0034] The present invention provides an infusion tube 3 connected to the sampling mechanism 2 and the dosing device, and distributes multiple T-shaped tubes 33 at the sampling points of the circulating water pool 1 in advance according to the sampling requirements. When the dosing device is in operation, the medicine delivered by the dosing device is delivered into the circulating water pool 1 through the multiple T-shaped tubes 33. When manual sampling is required, the sampling mechanism 2 is connected to the T-shaped tube 33, and then the first blocking mechanism 4 is controlled to block the connection between the docking end and the branch pipe 32. The sampling mechanism 2 can use the T-shaped tube 33 to extract water from the circulating water pool 1 at that point for sampling. One tube has multiple uses, which not only improves the mixing efficiency of the medicine and the circulating water, but also enables the sampling personnel to quickly collect water samples at the required points and depths, thereby increasing the convenience of manual sampling.

[0035] Preferably, the dosing equipment is a circulating water dosing device in the prior art, and the dosing equipment adds bactericides and scale inhibitors to the circulating water pool 1 at regular intervals and in fixed quantities. The oxidizing bactericide is added at 25-30 mg / L per week, and the non-oxidizing bactericide is added at 100-150 mg / L per month. The initial dosage of the scale inhibitor is the pool volume * agent concentration, and subsequent additions are made based on the residual agent concentration in the pool not exceeding the specified agent concentration, and can also be adjusted according to the amount of water replenishment.

[0036] In a specific implementation, after sampling, the sampling personnel can mark the sampling point on the sampling mechanism 2 with a marking pen, or install an NFC reading device connected to the control system on the T-shaped tube 33 and stick an NFC tag on the sampling mechanism 2. When the sampling mechanism 2 samples, the NFC reading device automatically reads the NFC tag, so that the sampling mechanism 2 is bound to the water sample, making it convenient for subsequent testing personnel to lock the water sample collection position.

[0037] In one embodiment, a water supply pump is provided at the outlet of the circulating water pool 1, and a pH meter with a remote signal transmission is provided at the outlet of the water supply pump to monitor abnormal changes in the pH value of the circulating water in the circulating water pool 1 and issue an alarm when an abnormality occurs, thereby effectively preventing the circulating water quality from being polluted by leakage of the heat exchange equipment. A conductivity meter is provided on the circulating water pool 1, and a sewage pneumatic valve and a flow meter are provided at the outlet branch of the water supply pump to perform sewage replacement on the circulating water to reduce the conductivity.

[0038] The circulating water pool 1 is provided with a liquid level gauge and a water supply pneumatic valve.

[0039] This design realizes automatic control of liquid level and water quality by interlocking the water supply pneumatic valve with the liquid level meter and the conductivity meter with the sewage pneumatic valve, thereby ensuring the liquid level of the circulating water pool 1 and the normal operation of the circulating water pump and heat exchange equipment.

[0040] In the specific implementation, priority is given to recycled water replenishment to save water resources. The replenishment pipelines are equipped with flow meters to record the replenishment flow, which is convenient for resource statistics. The control parameters of the conductivity meter and the pH meter are set according to the water sample test results obtained by the sampling agency 2. By regularly updating the control parameters, the stable operation of the circulating water pool 1 is further guaranteed.

[0041] In one embodiment, a multi-media suspension filter is provided in the circulating water pool 1 to remove suspended impurities in the circulating water.

[0042] In one embodiment, the sampling mechanism 2 includes a sampling tank 201, which is provided with a partition plate 202 that can move back and forth in the inner cavity of the sampling tank 201 and remain sealed during movement. The partition plate 202 divides the inner cavity of the sampling tank 201 into a waste liquid collection chamber and a sample collection chamber. The sampling tank 201 is respectively provided with a first manual valve 203 that is connected to the waste liquid collection chamber and the sample collection chamber. The first manual valve 203 is detachably provided with a sealing cover 204 at one end away from the sampling tank 201. The top of the sampling tank 201 is respectively provided with a liquid inlet 205 that is connected to the waste liquid collection chamber and the sample collection chamber. The sampling tank 201 is provided with a device for limiting the separation plate 202 between the two inlets. The sampling tank 201 includes a plurality of limit blocks 206 for moving between the liquid holes 205. A cover 207 for covering the two liquid inlet holes 205 is provided on the top of the sampling tank 201. Sliders 208 for blocking the two liquid inlet holes 205 are slidably provided in the cover 207. A chute 209 for reciprocating movement of the slides 208 is provided in the cover 207. The slides 208 can maintain a dynamic seal when moving in the chute 209. A connecting rod 210 for driving the two slides 208 to move synchronously is provided between the two slides 208. Magnets 211 that attract each other through magnetic force are provided on the connecting rod 210 and the partition plate 202. A second manual valve 212 communicating with the chute 209 is provided on the top of the cover 207.

[0043] When the volume of the waste liquid collection chamber is at its minimum, the second manual valve 212 can only communicate with the waste liquid collection chamber through the liquid inlet hole 205 . When the volume of the sample collection chamber is at its minimum, the second manual valve 212 can only communicate with the sample collection chamber through the liquid inlet hole 205 .

[0044] With this design, before using the sampling mechanism 2, the first manual valve 203 is connected to the vacuum pump and opened to extract the gas inside the waste liquid collection chamber and the sample collection chamber, so that the waste liquid collection chamber and the sample collection chamber are in a negative pressure state, and then connected to the T-shaped tube 33, the water sample is extracted by using its own negative pressure, and the initial water sample is first extracted into the waste liquid collection chamber due to the limiting effect of the slider 208. Then, due to the reduction of the negative pressure in the waste liquid collection chamber, the partition plate 202 moves toward the side of the sample collection chamber, and at the same time, the magnet 211 drives the connecting rod 210 and the slider 208 to move together, so that the water sample after a period of time is extracted into the sample collection chamber, thereby improving the sample collection qualification rate. The sampling personnel prepare multiple sampling mechanisms 2 in advance before sampling. When sampling, they only need to put the sampling mechanism 2 in place and do not need to continue operating. The sampling and waste liquid collection work can be completed automatically, so that the sampling personnel can sample at multiple points at the same time, thereby improving the sampling efficiency.

[0045] In specific implementation, the sampling mechanism 2 needs to be cleaned and dried after each use to ensure that the next sampling will not be contaminated by the previously collected water sample.

[0046] In one embodiment, at least one tension spring 6 is provided in the waste liquid collection chamber for delaying the partition plate 202 from moving toward the sample collection chamber.

[0047] In one embodiment, the first blocking mechanism 4 includes at least one pushing component 41 disposed on the top of the circulating water tank 1. The pushing component 41 is provided with a push plate 42. The pushing component 41 is used to drive the push plate 42 to move along the axis of the branch pipe 32. The push plate 42 is provided with an arc column 43 for blocking the connection between the branch pipe 32 and the T-shaped pipe 33 and inserted into the branch pipe 32 along the axis of the branch pipe 32. The arc column 43 maintains a dynamic seal with the branch pipe 32 during movement. The arc column 43 is provided with a through hole 44 for connecting the branch pipe 32 and the T-shaped pipe 33.

[0048] The cross-sectional area of ​​the arc-shaped column 43 is smaller than the cross-sectional area of ​​the inner cavity of the branch tube 32 .

[0049] This design can block the communication between the branch tube 32 and the T-shaped tube 33 when the sampling mechanism 2 is sampling, ensuring that the sampling mechanism 2 will not be interfered by the remaining T-shaped tubes 33 during sampling.

[0050] Preferably, the pushing component 41 can adopt a hydraulic telescopic component, a pneumatic telescopic component, and an electric telescopic component in the prior art.

[0051] In one embodiment, the second blocking mechanism 5 includes a blocking assembly 51 for blocking the T-shaped tube 33 and a blocking release assembly 52 for releasing the blocking state of the blocking assembly 51. The blocking assembly 51 is disposed in the docking end connected to the sampling mechanism 2, and the blocking release assembly 52 is disposed at the end of the second manual valve 212 away from the cover 207.

[0052] The sealing assembly 51 includes a fixing seat 511 and a sealing ring 512 disposed in the butt joint. The sealing ring 512 is located at the bottom of the fixing seat 511. The fixing seat 511 is provided with a liquid guide hole for liquid circulation. A spring 513 is provided at the bottom of the fixing seat 511. A sealing ball 514 is provided at the bottom of the spring 513 and is located at the top of the sealing ring 512. The diameter of the sealing ball 514 is larger than the inner diameter of the sealing ring 512. When the sealing ball 514 contacts the sealing ring 512, the spring 513 is in a compressed state.

[0053] The blocking release component 52 includes a hollow stud 521 arranged at the end of the second manual valve 212 away from the cover body 207, and a screw sleeve 522 threadedly connected to the hollow stud 521 is sleeved on the hollow stud 521. At least one liquid guide groove is provided on the top of the screw sleeve 522, and an inlet and outlet hole adapted to the screw sleeve 522 is provided on the docking end.

[0054] This design ensures that the docking end connected to the sampling mechanism 2 is in a normally closed state, ensuring that the medicine can be stably delivered into the circulating water pool 1. When sampling is required, the blocking state of the required docking end can be quickly released.

[0055] A method for controlling a water quality monitoring and regulating device for an industrial circulating cooling water system, comprising any one of the water quality monitoring and regulating devices for an industrial circulating cooling water system, the method being as follows:

[0056] By interlocking the conductivity meter with the sewage pneumatic valve, when the conductivity meter detects that the conductivity of the circulating water in the circulating water pool 1 exceeds 2000μs / mm, the sewage pneumatic valve is controlled to open, and part of the circulating water in the circulating water pool 1 is discharged into the general production wastewater system, and is classified as recycled water after being treated as qualified;

[0057] Water is added to the circulating water pool 1 through the water supply pneumatic valve, where the water supply source includes new production water and factory recycled water, until the liquid level in the circulating water pool 1 reaches the set value;

[0058] The dosing device is used to add bactericides and scale inhibitors to the circulating water pool 1 in a regular and quantitative manner. When the drugs are fed into the circulating water pool 1, the pushing component 41 is controlled to move the push plate 42 before feeding, so that the perforation 44 moves to a state of communication with the T-shaped pipe 33. Then, the dosing device is controlled to operate so that the drugs enter the circulating water pool 1 along the infusion pipe 3. After the water is replenished, the bactericides and scale inhibitors need to be added to the circulating water pool 1 according to the amount of water replenished.

[0059] The first manual valve 203 is connected to the vacuum pump to extract the gas inside the sampling tank 201, so that the partition plate 202 moves to the minimum state of the waste liquid collection chamber under the action of negative pressure. Then, the prepared sampling mechanism 2 is moved to the T-shaped tube 33 corresponding to the sampling point, and the blocking release component 52 is aligned with the blocking component 51. Then, the screw sleeve 522 is rotated to move the screw sleeve 522 upward to push the blocking ball 514 to release the blocking state. Then, by opening the second manual valve 212, the liquid in the circulating water pool 1 first enters the waste liquid collection chamber under the action of negative pressure. Then, as the negative pressure in the waste liquid collection chamber decreases, the partition plate 202 gradually moves toward the sample collection chamber. The magnetic force of the magnet 211 drives the slider 208 to move, so that the liquid sucked by the negative pressure enters the sample collection chamber only after a period of time, thereby completing the sample collection. The collected samples are tested and analyzed for TDS, conductivity, pH, turbidity, suspended solids, and chloride ion indicators, and the water quality control parameters are adjusted in time according to the test results.

[0060] In specific implementation, other metal ions can be tested during the analysis of water samples according to actual production conditions.

[0061] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0062] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0063] In addition, "plurality" means two or more.

[0064] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A water quality monitoring and regulating device for an industrial circulating cooling water system, comprising a circulating water pool (1), characterized in that: The circulating water pool (1) is provided with at least one sampling mechanism (2), and the circulating water pool (1) is provided with an infusion pipe (3) for feeding a medicine from a dosing device into the circulating water pool (1) and for outputting a water sample in the circulating water pool (1) into the sampling mechanism (2); the infusion pipe (3) comprises a main pipe (31) located at the top of the circulating water pool (1) and connected to the medicine outlet of the dosing device, the main pipe (31) is provided with at least one branch pipe (32) communicating with the main pipe (31), the branch pipe (32) is provided with at least one T-shaped pipe (33) plugged into the circulating water pool (1), the top of the T-shaped pipe (33) is provided with two downwardly bent butt ends, and the two butt ends are respectively connected to the branch pipe (32) and the sampling mechanism (2); The circulating water pool (1) is provided with a first blocking mechanism (4) capable of changing the communication state between the butt end and the branch pipe (32), and a second blocking mechanism (5) capable of changing the communication state between the butt end and the sampling mechanism (2) is provided between the sampling mechanism (2) and the T-shaped pipe (33); The sampling mechanism (2) comprises a sampling tank (201), the sampling tank (201) is provided with a partition plate (202) capable of reciprocating in the inner cavity of the sampling tank (201) and maintaining a seal during movement, the partition plate (202) divides the inner cavity of the sampling tank (201) into a waste liquid collection chamber and a sample collection chamber, the sampling tank (201) is provided with a first manual valve (203) communicating with the waste liquid collection chamber and the sample collection chamber, respectively, the first manual valve (203) is detachably provided with a sealing cover (204) at one end away from the sampling tank (201), the top of the sampling tank (201) is provided with a liquid inlet (205) communicating with the waste liquid collection chamber and the sample collection chamber, respectively, and the sampling tank (201) is provided with a device for limiting the movement of the partition plate (202) between the two liquid inlet holes (205). The sampling tank (201) comprises a plurality of movable limit blocks (206), a cover body (207) for covering the two liquid inlet holes (205) is provided on the top of the sampling tank (201), sliders (208) for blocking the two liquid inlet holes (205) are respectively slidably provided in the cover body (207), a chute (209) for the sliders (208) to reciprocate is provided in the cover body (207), the sliders (208) can maintain dynamic sealing when moving in the chute (209), a connecting rod (210) for driving the two sliders (208) to move synchronously is provided between the two sliders (208), magnets (211) that attract each other through magnetic force are provided on the connecting rod (210) and the partition plate (202), and a second manual valve (212) in communication with the chute (209) is provided on the top of the cover body (207); When the volume of the waste liquid collection chamber is at its minimum, the second manual valve (212) can only communicate with the waste liquid collection chamber through the liquid inlet hole (205); when the volume of the sample collection chamber is at its minimum, the second manual valve (212) can only communicate with the sample collection chamber through the liquid inlet hole (205).

2. The water quality monitoring and regulating device for an industrial circulating cooling water system according to claim 1, characterized in that: The outlet end of the circulating water pool (1) is provided with a water supply pump, and the outlet of the water supply pump is provided with a pH meter with a remote signal transmission, which is used to monitor abnormal changes in the pH value of the circulating water in the circulating water pool (1); the circulating water pool (1) is provided with a conductivity meter, and the outlet branch of the water supply pump is provided with a sewage pneumatic valve and a flow meter, which are used to perform sewage replacement on the circulating water to reduce the conductivity; The circulating water pool (1) is provided with a liquid level gauge and a water supply pneumatic valve.

3. The water quality monitoring and regulating device for an industrial circulating cooling water system according to claim 1, characterized in that: A multi-media suspension filter is provided in the circulating water pool (1) for removing suspended impurities in the circulating water.

4. The water quality monitoring and regulating device for an industrial circulating cooling water system according to claim 1, characterized in that: At least one tension spring (6) is provided in the waste liquid collection chamber for delaying the movement of the partition plate (202) toward the sample collection chamber.

5. The water quality monitoring and regulating device for an industrial circulating cooling water system according to claim 1, characterized in that: The first blocking mechanism (4) comprises at least one pushing component (41) arranged on the top of the circulating water pool (1), the pushing component (41) being provided with a push plate (42), the pushing component (41) being used to drive the push plate (42) to move along the axis direction of the branch pipe (32), the push plate (42) being provided with an arc column (43) for blocking the connection between the branch pipe (32) and the T-shaped pipe (33) and being inserted into the branch pipe (32) along the axis direction of the branch pipe (32), the arc column (43) maintaining a dynamic seal with the branch pipe (32) during movement, and a through hole (44) for communicating the branch pipe (32) with the T-shaped pipe (33) being provided on the arc column (43); The cross-sectional area of ​​the arc-shaped column (43) is smaller than the cross-sectional area of ​​the inner cavity of the branch pipe (32).

6. The water quality monitoring and regulating device for an industrial circulating cooling water system according to claim 1, characterized in that: The second blocking mechanism (5) comprises a blocking component (51) for blocking the T-shaped tube (33) and a blocking release component (52) for releasing the blocking state of the blocking component (51), wherein the blocking component (51) is arranged in the docking end connected to the sampling mechanism (2), and the blocking release component (52) is arranged at an end of the second manual valve (212) away from the cover body (207); The blocking assembly (51) comprises a fixing seat (511) and a blocking ring (512) arranged in the butt end, the blocking ring (512) being located at the bottom of the fixing seat (511), the fixing seat (511) being provided with a liquid guide hole for liquid circulation, the fixing seat (511) being provided with a spring (513) at the bottom, the spring (513) being provided with a blocking ball (514) located at the top of the blocking ring (512), the blocking ball (514) having a diameter greater than the inner diameter of the blocking ring (512), and the spring (513) being in a compressed state when the blocking ball (514) contacts the blocking ring (512); The blocking release assembly (52) comprises a hollow stud (521) arranged at one end of the second manual valve (212) away from the cover body (207); a screw sleeve (522) threadedly connected to the hollow stud (521) is sleeved on the hollow stud (521); at least one liquid guide groove is provided on the top of the screw sleeve (522); and an inlet and outlet hole adapted to the screw sleeve (522) is provided on the butt end.

7. A control method for a water quality monitoring and regulating device of an industrial circulating cooling water system, characterized by: The device comprises a water quality monitoring and regulating device for an industrial circulating cooling water system according to any one of claims 1 to 6, wherein the method is as follows: By interlocking the conductivity meter with the sewage pneumatic valve, when the conductivity meter detects that the conductivity of the circulating water in the circulating water pool (1) exceeds 2000μs / mm, the sewage pneumatic valve is controlled to open, and part of the circulating water in the circulating water pool (1) is discharged into the general production wastewater system, and is classified as recycled water after being treated as qualified; Water is added to the circulating water pool (1) through the water supply pneumatic valve, wherein the water supply source includes new production water and factory recycled water, until the liquid level in the circulating water pool (1) reaches the set value; A bactericide and a scale inhibitor are added to the circulating water pool (1) in a timely and quantitative manner through a dosing device. When the drugs are fed into the circulating water pool (1), the pushing component (41) is controlled to drive the push plate (42) to move before feeding the drugs, so that the perforation (44) moves to a state of communication with the T-shaped pipe (33). Then, the dosing device is controlled to operate so that the drugs enter the circulating water pool (1) along the infusion pipe (3). After water is replenished, the bactericide and the scale inhibitor need to be added to the circulating water pool (1) according to the amount of water replenished; The gas inside the sampling tank (201) is extracted by connecting the first manual valve (203) through a vacuum pump, so that the partition plate (202) moves to the position where the waste liquid collection chamber is at its minimum state under the action of negative pressure, and then the prepared sampling mechanism (2) is moved to the T-shaped tube (33) corresponding to the sampling point, so that the blocking release component (52) is aligned with the blocking component (51), and then the screw sleeve (522) is rotated to move the screw sleeve (522) upward to push the blocking ball (514) to release the blocking state, and then the second manual valve (212) is opened to release the blocking ball (514). The liquid in the circulating water pool (1) first enters the waste liquid collection chamber under the action of negative pressure. Then, as the negative pressure in the waste liquid collection chamber decreases, the partition plate (202) gradually moves toward the sample collection chamber. The magnetic force of the magnet (211) drives the slider (208) to move, so that the liquid sucked by the negative pressure enters only the sample collection chamber after a period of time, thereby completing the sample collection. The collected samples are tested and analyzed for TDS, conductivity, pH, turbidity, suspended solids, and chloride ion indicators, and the water quality control parameters are adjusted in a timely manner according to the test results.

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