A water quality monitoring and pretreatment system and method for industrial cooling circulating water

Abstract

The invention relates to the technical field of circulating water supply, and in particular to a water quality monitoring and pretreatment system and method for industrial cooling circulating water; the invention can solve the following problems existing in the process of monitoring industrial circulating water in the prior art: the inability to filter particulate impurities in the industrial circulating water, which is easy to cause blockage, not only affecting the water quality, but also easily affecting the flow rate and normal use of the industrial circulating water; the inability to adjust the pH value of the industrial circulating water, resulting in the pH value of the industrial circulating water being too high or too low, which is easy to scale or corrode the pipeline; the invention removes particulate impurities in the industrial circulating water by interception filtration, and can perform enhanced filtration according to the turbidity of the industrial circulating water, so as to remove particulate impurities in the industrial circulating water; the invention can monitor the pH value of the industrial circulating water in real time and adjust its pH value according to the monitoring result, so as to prevent the pH value of the industrial circulating water from being too high or too low, which is easy to cause scaling or corrosion.

Description

Technical Field

[0001] The present invention relates to the technical field of circulating water supply, and in particular to a water quality monitoring and pretreatment system and method for industrial cooling circulating water. Background Art

[0002] Industrial cooling circulating water refers to the exchange of medium heat through heat exchangers or direct contact heat exchange, and is recycled after being cooled by cooling towers to save water resources. If industrial cooling circulating water is used for a long time without being treated, it is easy to produce scale and easily cause corrosion to industrial equipment. Therefore, in order to avoid the adverse effects of circulating water on industrial equipment, it is necessary to monitor the water quality of the circulating water, and if necessary, it needs to be pre-treated accordingly to extend the service life of industrial equipment and its stable operation.

[0003] In the prior art, a large number of industrial circulating water quality monitoring and corresponding devices are also disclosed. Among them, a Chinese patent with publication number CN215374045U discloses a simulated circulating water supply and return device for an industrial cooling circulating water system, including a circulating water tank, a cooling tower, a circulating water supply unit, a water quality monitoring and surveillance unit, a circulating water return unit and a sampling and analysis unit. The outer side of the circulating water tank is connected to a first isolation valve, and the outer side of the first isolation valve is connected to the circulating water supply unit.

[0004] When the above-mentioned prior art is in use, the industrial circulating water enters the online monitoring area of ​​the circulating water supply unit, and after the simulated online scaling and simulated online corrosion detection area monitoring, it is diverted to different types of simulated monitoring heat exchanger units, and automatic simulated monitoring of different types of heat exchangers is performed respectively, so as to intuitively reflect the operating conditions of the circulating water in the heat exchanger. The final return water then enters the simulated circulating return water unit for online monitoring of scaling and corrosion again, and then is uniformly recovered to the system's cooling tower for recycling, which has strong applicability.

[0005] However, in the process of using the above-mentioned existing technologies to monitor industrial circulating water, there are still the following shortcomings:

[0006] 1. Since the pipes and heat exchangers in the cooling system may produce rust, corrosion products and other particulate impurities due to corrosion, and the above-mentioned existing technology cannot perform corresponding filtering treatment on the industrial circulating water, it is easy to cause the filter to be blocked, which not only affects the water quality, but also easily affects the flow rate and normal use of the industrial circulating water.

[0007] 2. In addition, the industrial circulating water used in different industrial production may have different pH values. If the pH value of industrial circulating water is too high or too low, it is easy to produce scale or corrosion. Therefore, it is necessary to monitor the pH value of industrial circulating water accordingly and adjust it in time. However, the above-mentioned prior art only involves simulated online scaling and corrosion detection, and cannot adjust the pH value of industrial circulating water, so it cannot be adjusted according to the water quality, which affects the use effect.

[0008] 3. In addition, industrial circulating water may contain microorganisms such as bacteria and algae, which lead to the formation of biofilm, which not only affects the heat exchange efficiency, but also promotes corrosion. The above-mentioned existing technologies are unable to carry out corresponding monitoring of industrial circulating water and necessary disinfection and sterilization treatment, thereby aggravating the growth of microorganisms in industrial circulating water and further affecting the monitoring effect of water quality.

[0009] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing industrial circulating water monitoring methods. Summary of the invention

[0010] In order to solve the above problems, the present invention provides a water quality monitoring and pretreatment system for industrial cooling circulating water, including a cooling tower, a chiller and a heat exchanger connected by pipelines, two pipelines are installed between the cooling tower and the chiller and between the chiller and the heat exchanger, and a connecting cylinder is provided on the pipeline for outputting cooling water from the cooling tower to the cooling water group.

[0011] Two support frames are symmetrically installed on the outer wall of the connecting cylinder, and the bottom of the support frames is in contact with the ground. A removal unit for filtering out particulate matter in industrial circulating water and a regulating unit for adjusting the pH value of industrial circulating water are arranged inside the connecting cylinder. The removal unit includes a filter plate arranged on the connecting cylinder, and the regulating unit includes a retaining net installed in the connecting cylinder, and a plurality of groups of annularly distributed water holes are evenly arranged on the retaining net.

[0012] As a preferred technical solution of the present invention, the impurity removal unit also includes a notch opened at the upper end of the connecting cylinder, the notch is located on the side of the connecting cylinder close to the cooling tower, the filter plate is movably arranged in the notch, the filter plate has a accommodating cavity inside, the accommodating cavity is detachably provided with a filter pad for filtering out fine particles, a driving component for controlling the rotation of the filter plate to enhance the filtering effect is installed between the filter plate and the connecting cylinder, and the impurity removal unit also includes a cleaning component for removing particles on the surface of the filter plate.

[0013] As a preferred technical solution of the present invention, the upper end of the notch is connected to the outside world, and the notch passes through the inner diameter of the connecting tube. Two brackets are symmetrically arranged along the notch on the upper end of the connecting tube. A support shaft is provided between the two brackets for common rotation. The filter plate is sleeved on the support shaft. The outer peripheral wall of the filter plate rotates against the inner bottom wall of the notch, and both ends of the filter plate slide against the inner wall of the notch.

[0014] As a preferred technical solution of the present invention, the driving assembly includes a fixing frame installed at the upper end of the supporting frame, a controller and a turbidity meter are arranged on the top of the fixing frame, the turbidity meter is electrically connected to the controller, and the monitoring end of the turbidity meter extends downward to the inside of the connecting tube;

[0015] A driving motor is arranged on the connecting cylinder through a motor seat, an output shaft of the driving motor is connected to the supporting shaft, and the driving motor is electrically connected to the controller.

[0016] As a preferred technical solution of the present invention, the cleaning assembly includes two driving bevel gears sleeved on the outer wall of the support shaft, the two driving bevel gears are symmetrically distributed along the thickness direction of the filter plate, and the driving bevel gears are located on the side of the bracket away from the filter plate;

[0017] The upper end of the bracket has a horizontal folded edge, on which a linkage shaft is rotatably arranged, and the bottom of the linkage shaft is sleeved with an auxiliary bevel gear meshing with the driving bevel gear. The linkage shaft is arranged vertically upward, and a plurality of annularly distributed brushes are evenly installed on the outer wall of the linkage shaft, and the brushes are against the outer wall of the filter plate.

[0018] As a preferred technical solution of the present invention, the cleaning component also includes a support plate installed between the two support frames and located below the connecting tube, a material receiving barrel located below the filter plate is provided at the upper end of the support plate, two execution groups are symmetrically provided along the notch on the outer wall of the connecting tube, each execution group includes two positioning tubes symmetrically arranged along the length direction of the material receiving barrel, the positioning tubes are in sliding contact with the filter plate, and a plurality of through holes are provided on one side of the positioning tubes close to the filter plate, and a mutually connected air pipe is commonly provided at the lower ends of the two positioning tubes of the same execution group;

[0019] An air pump is installed on the bottom wall of the receiving barrel. The air inlet end of the air pump is connected with the air pipe through a connecting pipe, and the exhaust end of the air pump extends to the outside after passing through the supporting plate downward.

[0020] As a preferred technical solution of the present invention, the adjustment unit also includes a pH meter installed on the upper end of the fixed frame, the pH meter is electrically connected to the controller, the monitoring end of the pH meter extends downward to the inside of the connecting cylinder, and an actuator for adjusting the pH value of industrial circulating water is arranged inside the baffle.

[0021] As a preferred technical solution of the present invention, the execution component includes a cavity opened inside the retaining net, a support column is fixedly arranged inside the cavity, a rotating wheel is rotatably sleeved on the outer wall of the support column, and a plurality of matching groups staggered with water holes are evenly arranged on the outer wall of the rotating wheel, each matching group includes two adjustment boxes symmetrically distributed along the water holes, the adjustment boxes are in sliding contact with the inner wall of the cavity, and overflow ports corresponding to the positions of the water holes are opened on the adjustment boxes, and the two adjustment boxes of each matching group respectively contain acid and alkali for adjusting the pH value;

[0022] A connecting through pipe is installed between two adjacent regulating boxes containing acid solution and between two adjacent regulating boxes containing alkali solution. A feed pipe extending to the outside is arranged on the two regulating boxes of one matching group, and a one-way valve is arranged at the end of the feed pipe.

[0023] As a preferred technical solution of the present invention, the actuator also includes a gear ring mounted on the outer walls of multiple adjustment boxes, a forward and reverse motor is arranged on the upper end of the connecting cylinder through a motor cover, the output shaft sleeve of the forward and reverse motor is provided with a gear meshing with the gear ring, and the forward and reverse motor is electrically connected to the controller.

[0024] In addition, the present invention also provides a water quality monitoring and pretreatment method for industrial cooling circulating water, comprising the following steps:

[0025] S1: Cooling circulating water circulation: The cooled industrial circulating water is discharged into the chiller through the pipeline through the cooling tower, and then the industrial circulating water in the chiller is discharged into the heat exchanger through the pipeline for heat exchange cooling. Then the heat exchanger discharges the cooled industrial circulating water into the chiller and cooling tower through the pipeline in turn to realize the recycling of industrial circulating water;

[0026] S2: Cooling circulating water monitoring and filtration: Monitor the turbidity of industrial circulating water through the impurity removal unit and filter out the residual particulate impurities in the industrial circulating water;

[0027] S3: Cooling circulating water monitoring and regulation: Monitor the pH value in industrial circulating water through the regulation unit, and adjust the pH value of industrial circulating water according to the monitoring results;

[0028] S4: Reuse of cooling circulating water: The industrial circulating water after pretreatment passes through the impurity removal unit and the regulating unit and is discharged into the chiller and then enters the heat exchanger and cooling tower in turn for recycling.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] 1. The present invention can intercept and filter the industrial circulating water passing through the connecting cylinder by using the filter plate in combination with the filter pad, thereby filtering out particulate impurities in the industrial circulating water, and can monitor the turbidity of the industrial circulating water in real time, and control the rotation of the filter plate to enhance the filtration of the industrial circulating water with higher turbidity, so that the unused positions of the filter plate can be screwed into the notch in turn to increase their usable area, thereby increasing the contact area between the filter plate and the connecting cylinder, thereby being able to cooperate with the filter pad to enhance the filtering effect on the industrial circulating water, and further filtering out particulate impurities in the industrial circulating water, thereby avoiding blockage and corrosion of the pipeline and damage to industrial equipment.

[0031] 2. The present invention drives the filter plate to rotate and filter the industrial circulating water through the support shaft, and drives the brush to clean the surface of the filter plate through the linkage shaft to remove particulate impurities attached to the mesh of the filter plate surface, thereby ensuring that the filtering effect of the filter plate and the flow rate of the industrial circulating water passing through the filter plate are not affected.

[0032] 3. The present invention uses an air pump to extract the air in the positioning tube, and the positioning tube can absorb the particulate impurities on the filter plate through the through hole, thereby further enhancing the cleaning effect of the filter plate in combination with the method of removing the particulate impurities with a brush.

[0033] Fourth, the present invention drives the gears to rotate forward and reversely through the forward and reverse motors, and the gears cooperate with the gear rings to drive multiple regulating boxes to rotate synchronously, so that the overflow port on the regulating box containing acid or alkali solution coincides with the water hole, so that the industrial circulating water can be mixed with the acid or alkali solution when passing through the baffle, and then the pH value of the industrial circulating water can be adjusted to ensure that the pH value of the industrial circulating water is within the standard range, thereby preventing the pH value of the industrial circulating water from being too high or too low to easily cause scaling or corrosion, and improving the use effect of the industrial circulating water.

[0034] 5. The present invention can disinfect bacteria and microorganisms in industrial circulating water by spraying chemical agents into the filter plate, and then cooperate with the filter plate to achieve filtering and disinfecting of industrial circulating water, which is beneficial to improving treatment efficiency and treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0036] Figure 1 It is a structural schematic diagram of the present invention.

[0037] Figure 2 It is a schematic diagram of the structure among the connecting cylinder, the impurity removal unit and the regulating unit of the present invention.

[0038] Figure 3 It is a schematic diagram of the structure among the filter plate, filter pad, bracket and support shaft of the present invention.

[0039] Figure 4 It is a schematic diagram of the structure between the driving component and the cleaning component of the present invention.

[0040] Figure 5 It is a first structural schematic diagram of the cleaning component of the present invention.

[0041] Figure 6 The present invention Figure 5 A partial enlarged view of point A.

[0042] Figure 7 It is a second structural schematic diagram of the cleaning component of the present invention.

[0043] Figure 8 It is a structural schematic diagram of the regulating unit of the present invention.

[0044] Fig. 9 It is a structural schematic diagram of the execution component of the present invention.

[0045] Fig.10 It is a schematic diagram of the internal structure of the execution component of the present invention.

[0046] Fig.11 It is a schematic diagram of the structure between the filter plate and the disinfection unit of the present invention.

[0047] Fig.12 The present invention Fig.11 A partial enlarged view of point B.

[0048] In the figure, 1, cooling tower; 2, chiller; 3, heat exchanger; 4, pipeline; 5, connecting tube; 6, support frame; 7, impurity removal unit; 71, filter plate; 72, filter pad; 73, drive assembly; 731, fixing frame; 732, controller; 733, turbidity meter; 734, drive motor; 74, cleaning assembly; 741, drive bevel gear; 742, linkage shaft; 743, auxiliary bevel gear; 744, brush; 745, support plate; 746, receiving barrel; 747, positioning pipe; 748, air pipe; 749, air Pump; 75. Bracket; 76. Support shaft; 8. Adjustment unit; 81. Screen; 82. Water hole; 83. pH meter; 84. Actuator; 841. Support column; 842. Rotor; 843. Adjustment box; 844. Overflow; 845. Through pipe; 846. Feed pipe; 847. One-way valve; 848. Gear ring; 849. Forward and reverse motor; 840. Gear; 9. Disinfection unit; 91. Positioning plate; 92. Water pump; 93. Chemical tank; 94. Liquid storage pipe; 95. Liquid spray pipe; 96. Ring. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-Figure 12 Embodiments of the present invention are described in detail.

[0050] The embodiment of the present application discloses a water quality monitoring and pretreatment system for industrial cooling circulating water. It should be noted that the water quality monitoring and pretreatment system for industrial cooling circulating water of the present application is mainly used in the process of water quality monitoring and pretreatment of industrial circulating water. In terms of technical effect, it can intercept and filter industrial circulating water, thereby filtering out particulate impurities in industrial circulating water, and can monitor the turbidity of industrial circulating water in real time, and control the rotation of the filter plate 71 to strengthen the filtration of industrial circulating water with high turbidity, especially in the process of filtration, the surface of the filter plate 71 is cleaned. Processing is carried out to remove particulate impurities attached to the mesh on the surface of the filter plate 71, thereby ensuring that the filtering effect of the filter plate 71 and the flow rate of industrial circulating water passing through the filter plate 71 are not affected. Furthermore, the water quality monitoring and pretreatment system for industrial cooling circulating water of the present application can also monitor the pH value of the industrial circulating water in real time, and add acid or alkali solution according to the water quality conditions, so as to adjust the pH value of the industrial circulating water to ensure that the pH value of the industrial circulating water is within the standard range, thereby avoiding the pH value being too high or too low, which is easy to cause scaling or corrosion, and improving the use effect of the industrial circulating water. Embodiment 1

[0051] Reference Figure 1 and Figure 2 As shown, a water quality monitoring and pretreatment system for industrial cooling circulating water includes a cooling tower 1, a chiller 2 and a heat exchanger 3 connected by a pipeline 4, two pipelines 4 are installed between the cooling tower 1 and the chiller 2 and between the chiller 2 and the heat exchanger 3, and a connecting tube 5 is provided on the pipeline 4 for outputting cooling water from the cooling tower 1 to the cooling water group.

[0052] Furthermore, in this embodiment, two support frames 6 are symmetrically installed on the outer wall of the connecting tube 5, and the bottom of the support frame 6 is in contact with the ground. The connecting tube 5 is provided with a de-impurity unit 7 for filtering out particulate matter in the industrial circulating water and a regulating unit 8 for adjusting the pH value of the industrial circulating water. The de-impurity unit 7 includes a filter plate 71 arranged on the connecting tube 5.

[0053] During the specific implementation process, the cooling tower 1 discharges the cooled industrial circulating water into the chiller 2 through the pipeline 4, and then the industrial circulating water in the chiller 2 is discharged into the heat exchanger 3 through the pipeline 4 for heat exchange cooling, and then the heat exchanger 3 discharges the cooled industrial circulating water into the chiller 2 and the cooling tower 1 in sequence through the pipeline 4, thereby realizing the recycling of industrial circulating water.

[0054] When the cooling tower 1 discharges the industrial circulating water to the cooling unit through the pipeline 4, it will pass through the connecting cylinder 5. At this time, the impurities remaining in the industrial circulating water can be filtered out by the impurity removal unit 7 to avoid clogging of the pipeline 4 and affecting the normal use of the industrial equipment; then the pH value in the industrial circulating water can be monitored by the adjustment unit 8, and the pH value of the industrial circulating water can be adaptively adjusted according to the monitoring results, so as to fully monitor the industrial circulating water and pre-treat it accordingly according to the water quality conditions to ensure that the water quality will not have an adverse effect on the industrial equipment.

[0055] Reference Figure 2 and Figure 3 As shown, in order to prevent the residual particles in the industrial circulating water from clogging the pipeline 4 and affecting the normal water use of the industrial equipment, the particulate impurities in the industrial circulating water can be removed in this embodiment. Based on this, a corresponding impurity removal unit 7 is provided in this embodiment. Specifically, the impurity removal unit 7 also includes a notch opened at the upper end of the connecting cylinder 5, and the notch is located on the side of the connecting cylinder 5 close to the cooling tower 1. The filter plate 71 is movably arranged in the notch. The filter plate 71 has a accommodating cavity inside. The accommodating cavity is provided with a filter pad 72 for filtering out fine particles in a detachable manner. A driving component 73 for controlling the rotation of the filter plate 71 to enhance the filtering effect is installed between the filter plate 71 and the connecting cylinder 5. The impurity removal unit 7 also includes a cleaning component 74 for removing particles on the surface of the filter plate 71.

[0056] In the specific implementation process, the filter plate 71 can be used to intercept and filter the industrial circulating water passing through the connecting tube 5, so that the filter plate 71 can filter out particulate impurities with larger diameters in the industrial circulating water, and the filter pad 72 can filter out fine particulate impurities with smaller diameters passing through the filter plate 71, thereby being able to perform a comprehensive filtration treatment on the industrial circulating water, preventing residual impurities from easily causing blockage of the pipeline 4, and avoiding rapid corrosion of the inner wall of the pipeline 4 and damage to industrial equipment.

[0057] Continue to refer to Figure 3As shown, in order to prevent the filter plate 71 from being quickly blocked due to excessive particulate impurities during use, thereby affecting the normal filtering effect of industrial circulating water, in this embodiment, the upper end of the notch is connected to the outside world, and the notch runs through the inner diameter of the connecting tube 5. Two brackets 75 are symmetrically arranged along the notch at the upper end of the connecting tube 5. A support shaft 76 is rotatably penetrated between the two brackets 75. The filter plate 71 is fixedly sleeved on the support shaft 76. The outer peripheral wall of the filter plate 71 rotates against the inner bottom wall of the notch, and both ends of the filter plate 71 slide against the inner wall of the notch. The inner walls of the notch on both sides of the notch relative to the filter plate 71 are provided with elastic sealing strips. The gap between the notch and the filter plate 71 can be compensated by the elastic sealing strip to prevent the industrial circulating water passing through the connecting tube 5 from flowing out through the gap. During use, the rotation of the filter plate 71 is controlled by the driving assembly 73 so that different positions of the filter plate 71 can be rotated into the notch in turn and the industrial circulating water passing through the connecting tube 5 is filtered, thereby increasing the contact area between the filter plate 71 and the connecting tube 5 and improving the filtering effect of the industrial circulating water.

[0058] Reference Figure 4 and Figure 6 As shown, in order to further improve the filtering effect on industrial circulating water, it is necessary to control the filter plate 71 to rotate automatically. Based on this, a driving assembly 73 is provided in this embodiment. Specifically, the driving assembly 73 includes a fixing frame 731 installed on the upper end of the supporting frame 6, and a controller 732 and a turbidity meter 733 are arranged on the top of the fixing frame 731. The turbidity meter 733 is electrically connected to the controller 732, and the monitoring end of the turbidity meter 733 extends downward to the inside of the connecting tube 5; a driving motor 734 is arranged on the connecting tube 5 through a motor seat, and the output shaft of the driving motor 734 is connected to the supporting shaft 76, and the driving motor 734 is electrically connected to the controller 732.

[0059] It should be noted that the controller 732 used in this embodiment is a prior art, which is mainly used to control the start and stop of the turbidity meter 733 and the drive motor 734, and will not be repeated here; the turbidity meter 733 is also a prior art, which is a special instrument for measuring the turbidity of water bodies based on the principle of turbid liquid scattering or transmitting light, and is generally used for continuous and automatic measurement of water turbidity.

[0060] In the specific implementation process, the turbidity of the industrial circulating water is monitored in real time by the turbidity meter 733. When the turbidity meter 733 detects that the turbidity of the industrial circulating water after being filtered by the filter plate 71 is high, it means that there are many particulate impurities in the industrial circulating water and it is easy to cause adverse effects. At this time, the controller 732 receives the signal of the turbidity meter 733 and controls the drive motor 734 to start. The drive motor 734 drives the support shaft 76 and the filter plate 71 on its outer wall to rotate, so that the filter plate 71 always uses its clean surface to enhance the filtration of the industrial circulating water during the rotation process, and the unused position of the filter plate 71 can be screwed into the notch in turn to increase its use area, thereby increasing the contact area between the filter plate 71 and the connecting tube 5, so as to cooperate with the filter pad 72 to enhance the filtering effect on the industrial circulating water, and then can filter out the particulate impurities in the industrial circulating water, avoid clogging and corrosion of the pipeline 4 and damage to industrial equipment.

[0061] Reference Figure 4 , Figure 5 and Figure 6 As shown, when the filter plate 71 filters the industrial circulating water, the particulate impurities in the industrial circulating water will be blocked on the side of the filter plate 71 close to the cooling tower 1, but the fine particulate impurities will enter the inside of the filter pad 72, and a small amount of particulate impurities will remain in the mesh holes on the surface of the filter plate 71. Therefore, the particulate impurities can easily reduce the flow rate of the industrial circulating water passing through the filter plate 71. In order to avoid the occurrence of this problem, a cleaning component 74 for removing particulate impurities attached to the outer wall of the filter plate 71 is provided in this embodiment. Specifically, the cleaning component 74 includes two drive bevel gears 741 fixedly mounted on the outer wall of the support shaft 76, and the two drive bevel gears 741 are symmetrically distributed along the thickness direction of the filter plate 71, and the drive bevel gears 741 are located on the side of the bracket 75 away from the filter plate 71.

[0062] Furthermore, in this embodiment, a horizontal fold is provided at the upper end of the bracket 75, and a linkage shaft 742 is rotatably provided on the horizontal fold. An auxiliary bevel gear 743 meshing with the driving bevel gear 741 is fixedly sleeved at the bottom of the linkage shaft 742. The linkage shaft 742 is arranged vertically upward, and a plurality of annularly distributed brushes 744 are evenly installed on the outer wall of the linkage shaft 742, and the brushes 744 are against the outer wall of the filter plate 71.

[0063] During the specific implementation process, the driving motor 734 controls the support shaft 76 to rotate and drives the driving bevel gear 741 to rotate synchronously. The driving bevel gear 741 cooperates with the auxiliary bevel gear 743 to drive the linkage shaft 742 to rotate. In this way, the support shaft 76 can drive the filter plate 71 to rotate and filter the industrial circulating water. At the same time, the linkage shaft 742 drives the brush 744 to clean the surface of the filter plate 71, so as to remove particulate impurities attached to the mesh of the surface of the filter plate 71, thereby ensuring that the filtering effect of the filter plate 71 and the flow rate of industrial circulating water passing through the filter plate 71 are not affected.

[0064] Reference Figure 4 and Figure 7 As shown, in order to prevent the particulate impurities on the surface of the filter plate 71 from falling to the ground at will after being removed, the particulate impurities removed from the filter plate 71 can be collected in this embodiment. Based on this, in this embodiment, the cleaning component 74 also includes a support plate 745 installed between the two support frames 6 and located below the connecting tube 5. The upper end of the support plate 745 is provided with a material receiving bucket 746 located below the filter plate 71. Two execution groups are symmetrically arranged along the notch on the outer wall of the connecting tube 5. Each execution group includes two positioning tubes 747 symmetrically arranged along the length direction of the material receiving bucket 746. The positioning tubes 747 are in sliding contact with the filter plate 71, and a plurality of through holes are opened on the side of the positioning tube 747 close to the filter plate 71. The lower ends of the two positioning tubes 747 of the same execution group are commonly provided with an air pipe 748 that is interconnected.

[0065] Furthermore, in this embodiment, an air pump 749 is installed on the inner bottom wall of the receiving barrel 746, and the air inlet end of the air pump 749 is connected to the air pipe 748 through a connecting pipe, and the exhaust end of the air pump 749 extends downward through the supporting plate 745 to the outside.

[0066] During the specific implementation process, the particulate impurities removed by the brush 744 fall downward into the receiving bucket 746. At the same time, the air pump 749 is started, and the air pump 749 draws out the air in the positioning tube 747 through the connecting pipe and the air pipe 748, so that the positioning tube 747 is in a negative pressure state; when the filter plate 71 rotates, the positioning tube 747 can absorb the particulate impurities on the filter plate 71 through the through hole, thereby cooperating with the brush 744 to remove the particulate impurities to further enhance the cleaning effect of the filter plate 71.

[0067] Reference Figure 8As shown, in order to prevent the industrial circulating water from causing corrosion or scaling to the pipeline 4, it is necessary to monitor the pH value of the industrial circulating water and adjust and control it accordingly according to the standard, so as to prevent the pH value of the industrial circulating water from being too high and alkaline and easy to scale or being too low and acidic and easy to corrode the pipeline 4. Based on this, a corresponding adjustment unit 8 is provided in this embodiment. Specifically, the adjustment unit 8 includes a baffle 81 installed in the connecting tube 5, and a plurality of groups of annularly distributed water holes 82 are evenly arranged on the baffle 81. The adjustment unit 8 also includes a pH detector 83 installed at the upper end of the fixed frame 731. The pH detector 83 is electrically connected to the controller 732. The monitoring end of the pH detector 83 extends downward to the inside of the connecting tube 5. An actuator 84 for adjusting the pH value of the industrial circulating water is arranged inside the baffle 81.

[0068] It should be noted that the pH detector 83 used in this embodiment is a prior art, which is used to measure the pH value of industrial circulating water, and can perform real-time monitoring and transmit the monitoring results to the controller 732 in real time.

[0069] In the specific implementation process, the industrial circulating water passing through the baffle 81 is monitored in real time by the pH detector 83 to ensure that its pH value is within the specified range. If the pH value is too low or too high, acid or alkali solution can be added to the industrial circulating water through the execution component 84, so as to avoid scaling or corrosion of the pipeline 4 caused by the industrial circulating water with unqualified pH value, enhance the cooling circulation effect on the industrial equipment, and extend the service life of the pipeline 4 and the industrial equipment.

[0070] Reference Fig. 9 and Fig.10 As shown, in order to facilitate the corresponding adjustment of the pH value of industrial circulating water according to the monitoring result, an execution component 84 is also provided in this embodiment. Specifically, the execution component 84 includes a cavity opened inside the retaining net 81, and a support column 841 is fixedly arranged inside the cavity. A rotating wheel 842 is rotatably sleeved on the outer wall of the support column 841, and a plurality of matching groups staggered with the water holes 82 are evenly arranged on the outer wall of the rotating wheel 842. Each matching group includes two adjustment boxes 843 symmetrically distributed along the water holes 82, and an overflow port 844 corresponding to the position of the water hole 82 is opened on the adjustment box 843. The two adjustment boxes 843 of each matching group respectively contain acid and alkali solution for adjusting the pH value.

[0071] Furthermore, in this embodiment, a communicating through pipe 845 is installed between two adjacent regulating boxes 843 containing acid solution and between two adjacent regulating boxes 843 containing alkali solution. A feed pipe 846 extending to the outside is provided on the two regulating boxes 843 of one matching group, and a one-way valve 847 is provided at the end of the feed pipe 846. The acid solution and the alkali solution in multiple regulating boxes 843 can be used together through the through pipe 845, and the acid solution and the alkali solution can be added to the multiple regulating boxes 843 through the feed pipe 846. During this period, the one-way valve 847 can only allow external liquid to enter the regulating box 843, and cannot allow the liquid in the regulating box 843 to flow out after passing through the one-way valve 847.

[0072] It should be noted that the regulating box 843 slides against the inner wall of the cavity. Therefore, in the initial state, the overflow port 844 and the water hole 82 of the regulating box 843 are in an alternate arrangement, and the overflow port 844 is always in a closed state under the action of the cavity to prevent the acid or alkali solution inside from flowing out and affecting the pH value of the industrial circulating water and causing waste.

[0073] Continue to refer to Fig.10 As shown, further, in this embodiment, the actuator 84 also includes a gear ring 848 mounted on the outer wall of a plurality of adjustment boxes 843, a forward and reverse motor 849 is provided at the upper end of the connecting cylinder 5 through a motor cover, and an output shaft sleeve of the forward and reverse motor 849 is provided with a gear 840 meshing with the gear ring 848, and the forward and reverse motor 849 is electrically connected to the controller 732.

[0074] During the specific implementation process, the pH value of the industrial circulating water is monitored in real time by the pH detector 83. When the pH detector 83 detects that the pH value of the industrial circulating water after passing through the baffle 81 does not meet the standard, it transmits a signal to the controller 732, and the controller 732 controls the forward and reverse motors 849 to start; if the pH value of the industrial circulating water is too high and alkaline, the forward and reverse motors 849 drive the gear 840 to rotate forward, and the gear 840 cooperates with the ring gear 848 to drive multiple regulating boxes 843 to rotate clockwise synchronously, so that the overflow port 844 on the regulating box 843 containing the acid coincides with the water hole 82, so that the industrial circulating water can be mixed with the acid when passing through the baffle 81, thereby reducing the pH value of the industrial circulating water.

[0075] If the pH value of the industrial circulating water is too low and is acidic, the forward and reverse motor 849 drives the gear 840 to reverse and cooperates with the ring gear 848 to drive multiple adjustment boxes 843 to rotate counterclockwise synchronously, so that the overflow port 844 on the adjustment box 843 containing the alkali solution coincides with the water hole 82, so that the industrial circulating water can be mixed with the alkali solution and the pH value of the industrial circulating water can be increased when passing through the baffle 81, so that the pH value of the industrial circulating water can be adjusted in real time according to the actual pH value of the industrial circulating water, thereby realizing the pretreatment of the industrial circulating water; the adjusted industrial circulating water can also be monitored by the pH detector 83 to ensure that the pH value of the industrial circulating water is within the standard range, thereby preventing the pH value of the industrial circulating water from being too high or too low, which is easy to cause scaling or corrosion, and improving the use effect of the industrial circulating water. Embodiment 2

[0076] Reference Fig.11 and Fig.12 As shown, on the basis of Example 1, since bacteria and microorganisms may still exist in the industrial circulating water, they are not only easy to attach to the inner wall of the pipeline 4 to cause blockage, but also corrode the pipeline 4 and industrial equipment. Therefore, it is necessary to carry out corresponding disinfection treatment on the bacteria and microorganisms in the industrial circulating water. Based on this, a corresponding disinfection unit 9 is provided in this embodiment. Specifically, the disinfection unit 9 includes a positioning plate 91 installed on the upper end of the fixed frame 731, and a water pump 92 and a reagent pool 93 are arranged on the upper end of the positioning plate 91. The water inlet end of the water pump 92 extends into the reagent pool 93, and the water outlet end of the water pump 92 is installed with a liquid storage pipe 94 after passing through the positioning plate 91 downward, and a plurality of spray pipes 95 are arranged at equal distances at the lower end of the liquid storage pipe 94 along the length direction.

[0077] Furthermore, in the present embodiment, an annular groove communicating with the accommodating cavity is formed on the outer wall of the filter plate 71, a sleeve ring 96 is rotatably arranged in the annular groove, and the liquid spraying pipe 95 extends downward into the accommodating cavity after passing through the sleeve ring 96. The sleeve ring 96 can be fixed accordingly by the liquid spraying pipe 95 so that the sleeve ring 96 cannot rotate.

[0078] In the specific implementation process, first, chemical agents for disinfecting bacteria and microorganisms in industrial circulating water are added to the agent pool 93, and then the water pump 92 is started. The water pump 92 draws the chemical agents from the agent pool 93 and discharges them into the liquid storage pipe 94, and then sprays them into the filter plate 71 through multiple spray pipes 95, so that when the industrial circulating water passes through the filter plate 71 and the filter pad 72, it can be mixed with the chemical agents, so that the bacteria and microorganisms in the industrial circulating water can be disinfected by the chemical agents, and then the industrial circulating water can be filtered and disinfected in cooperation with the filter plate 71, which is beneficial to improving the treatment efficiency.

[0079] In addition, the present invention also provides a water quality monitoring and pretreatment method for industrial cooling circulating water, comprising the following steps:

[0080] S1: Cooling circulating water circulation: The cooled industrial circulating water is discharged into the chiller 2 through the pipeline 4 through the cooling tower 1, and then the industrial circulating water in the chiller 2 is discharged into the heat exchanger 3 through the pipeline 4 for heat exchange cooling, and then the heat exchanger 3 discharges the cooled industrial circulating water into the chiller 2 and the cooling tower 1 through the pipeline 4 in sequence to realize the recycling of industrial circulating water.

[0081] S2: Cooling circulating water monitoring and filtration: When the cooling tower 1 discharges the industrial circulating water through the pipeline 4 to the cooling unit and passes through the connecting tube 5, the filter plate 71 can intercept and filter the industrial circulating water passing through the connecting tube 5, so that the filter plate 71 can filter out the particulate impurities with larger diameters in the industrial circulating water, and the filter pad 72 can filter out the small particulate impurities with smaller diameters passing through the filter plate 71, so that the industrial circulating water can be fully filtered and treated to prevent residual impurities from easily causing blockage of the pipeline 4 and damage to industrial equipment.

[0082] During this period, the turbidity of the industrial circulating water is monitored in real time by the turbidity meter 733. When the turbidity meter 733 detects that the turbidity of the industrial circulating water after being filtered by the filter plate 71 is high, the controller 732 receives the signal from the turbidity meter 733 and controls the drive motor 734 to start. The drive motor 734 drives the support shaft 76 and the filter plate 71 on its outer wall to rotate, so that the filter plate 71 always uses its clean surface to strengthen the filtration of the industrial circulating water during the rotation process, so as to increase the contact area between the filter plate 71 and the connecting tube 5, thereby cooperating with the filter pad 72 to enhance the filtering effect on the industrial circulating water.

[0083] When the support shaft 76 rotates, it drives the driving bevel gear 741 to rotate synchronously. The driving bevel gear 741 cooperates with the auxiliary bevel gear 743 to drive the linkage shaft 742 to rotate, so that while the support shaft 76 drives the filter plate 71 to rotate and filter the industrial circulating water, the linkage shaft 742 drives the brush 744 to clean the surface of the filter plate 71, so as to remove the particulate impurities attached to the mesh of the surface of the filter plate 71; the particulate impurities fall downward into the receiving bucket 746, and at the same time, the air pump 749 is started, and the air pump 749 draws out the air in the positioning tube 747, so that the positioning tube 747 is in a negative pressure state. When the filter plate 71 rotates, the positioning tube 747 absorbs the particulate impurities on the filter plate 71 through the through hole, thereby cooperating with the brush 744 to remove the particulate impurities to further enhance the cleaning effect of the filter plate 71.

[0084] S3: Monitoring and adjustment of cooling circulating water: The industrial circulating water passing through the retaining net 81 is monitored in real time by the pH detector 83 to ensure that its pH value is within the specified range. If the pH value is too low or too high, a signal is transmitted to the controller 732, and the controller 732 controls the forward and reverse motor 849 to start; the forward and reverse motor 849 drives the gear 840 to rotate forward and reverse, and the gear 840 cooperates with the ring gear 848 to drive multiple adjustment boxes 843 to rotate synchronously, so that the overflow port 844 on the adjustment box 843 containing acid or alkali liquid coincides with the water hole 82, so that the industrial circulating water can be mixed with the acid or alkali liquid when passing through the retaining net 81, and then the pH value of the industrial circulating water can be adjusted to ensure that the pH value of the industrial circulating water is within the standard range, thereby preventing the pH value of the industrial circulating water from being too high or too low, which is easy to cause scaling or corrosion, and improving the use effect of the industrial circulating water.

[0085] During this process, the present invention can also disinfect bacteria and microorganisms in industrial circulating water. The specific working steps are: first add chemical agents for disinfecting bacteria and microorganisms in industrial circulating water into the agent pool 93, and then start the water pump 92. The water pump 92 discharges the chemical agents into the liquid storage pipe 94, and then sprays them into the filter plate 71 through multiple spray pipes 95, so that when the industrial circulating water passes through the filter plate 71 and the filter pad 72, it can be mixed with the chemical agents, so that the bacteria and microorganisms in the industrial circulating water can be disinfected by the chemical agents, and then the industrial circulating water can be filtered and disinfected in cooperation with the filter plate 71, which is beneficial to improving the treatment efficiency.

[0086] S4: Reuse of cooling circulating water: The industrial circulating water after filtration, pH adjustment and disinfection treatment is discharged into the chiller 2 through the connecting tube 5 and the pipeline 4 and then enters the heat exchanger 3 and the cooling tower 1 in turn for recycling.

[0087] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0088] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water quality monitoring and pretreatment system for industrial cooling circulating water, comprising a cooling tower (1), a chiller (2) and a heat exchanger (3) connected by a pipeline (4), two pipelines (4) being installed between the cooling tower (1) and the chiller (2) and between the chiller (2) and the heat exchanger (3), a connecting tube (5) being provided on the pipeline (4) for outputting cooling water from the cooling tower (1) to the cooling water group, characterized in that: Two support frames (6) are symmetrically mounted on the outer wall of the connecting cylinder (5), the bottom of the support frames (6) is in contact with the ground, and a cleaning unit (7) for filtering out particulate matter in industrial circulating water and a regulating unit (8) for adjusting the pH value of industrial circulating water are arranged inside the connecting cylinder (5), the cleaning unit (7) comprises a filter plate (71) arranged on the connecting cylinder (5), and the regulating unit (8) comprises a retaining net (81) mounted inside the connecting cylinder (5), and a plurality of groups of annularly distributed water holes (82) are evenly arranged on the retaining net (81); The impurity removal unit (7) further comprises a notch formed at the upper end of the connecting cylinder (5), the notch being located on a side of the connecting cylinder (5) close to the cooling tower (1), a filter plate (71) being movably arranged in the notch, the filter plate (71) having an interior containing cavity, a filter pad (72) for filtering out fine particles being detachably arranged in the interior of the cavity, a drive assembly (73) for controlling the rotation of the filter plate (71) to enhance the filtering effect being installed between the filter plate (71) and the connecting cylinder (5), and the impurity removal unit (7) further comprising a cleaning assembly (74) for removing particles on the surface of the filter plate (71); The driving assembly (73) comprises a fixing frame (731) mounted on the upper end of the supporting frame (6); a controller (732) and a turbidity meter (733) are arranged on the top of the fixing frame (731); the turbidity meter (733) and the controller (732) are electrically connected, and a monitoring end of the turbidity meter (733) extends downward to the inside of the connecting tube (5); A driving motor (734) is arranged on the connecting cylinder (5) via a motor seat, an output shaft of the driving motor (734) is connected to the supporting shaft (76), and the driving motor (734) is electrically connected to the controller (732); The regulating unit (8) further comprises a pH detector (83) mounted on the upper end of the fixing frame (731); the pH detector (83) is electrically connected to the controller (732); a monitoring end of the pH detector (83) extends downward to the inside of the connecting tube (5); and an actuator (84) for regulating the pH value of the industrial circulating water is arranged inside the retaining net (81); The actuator component (84) comprises a cavity opened inside the retaining net (81), a support column (841) is fixedly arranged inside the cavity, a rotating wheel (842) is rotatably sleeved on the outer wall of the support column (841), a plurality of matching groups staggered with the water holes (82) are evenly arranged on the outer wall of the rotating wheel (842), each matching group comprises two regulating boxes (843) symmetrically distributed along the water holes (82), the regulating boxes (843) are in sliding contact with the inner wall of the cavity, and overflow ports (844) corresponding to the positions of the water holes (82) are opened on the regulating boxes (843), and the two regulating boxes (843) of each matching group respectively contain acid and alkali for adjusting pH value; A connecting through pipe (845) is installed between two adjacent regulating boxes (843) containing acid solution and between two adjacent regulating boxes (843) containing alkali solution, and a feed pipe (846) extending to the outside is provided on the two regulating boxes (843) of one matching group, and a one-way valve (847) is provided at the end of the feed pipe (846); The actuator assembly (84) further comprises a gear ring (848) sleeved on the outer walls of the plurality of adjustment boxes (843); a forward and reverse motor (849) is provided at the upper end of the connecting cylinder (5) through a motor cover; an output shaft sleeve of the forward and reverse motor (849) is provided with a gear (840) meshing with the gear ring (848); and the forward and reverse motor (849) is electrically connected to the controller (732).

2. A water quality monitoring and pretreatment system for industrial cooling circulating water according to claim 1, characterized in that: The upper end of the notch is connected to the outside, and the notch passes through the inner diameter of the connecting tube (5). Two brackets (75) are symmetrically arranged along the notch at the upper end of the connecting tube (5). A support shaft (76) is rotatably passed between the two brackets (75). The filter plate (71) is sleeved on the support shaft (76). The outer peripheral wall of the filter plate (71) is rotatably pressed against the inner bottom wall of the notch, and both ends of the filter plate (71) are in sliding contact with the inner wall of the notch.

3. A water quality monitoring and pretreatment system for industrial cooling circulating water according to claim 2, characterized in that: The cleaning assembly (74) comprises two driving bevel gears (741) sleeved on the outer wall of the support shaft (76), the two driving bevel gears (741) being symmetrically distributed along the thickness direction of the filter plate (71), and the driving bevel gears (741) being located on a side of the bracket (75) away from the filter plate (71); The upper end of the bracket (75) has a horizontal folded edge, on which a linkage shaft (742) is rotatably arranged, and the bottom of the linkage shaft (742) is sleeved with an auxiliary bevel gear (743) meshing with the driving bevel gear (741), the linkage shaft (742) is arranged vertically upward, and a plurality of annularly distributed brushes (744) are evenly mounted on the outer wall of the linkage shaft (742), and the brushes (744) are against the outer wall of the filter plate (71).

4. A water quality monitoring and pretreatment system for industrial cooling circulating water according to claim 3, characterized in that: The cleaning assembly (74) further comprises a support plate (745) installed between the two support frames (6) and located below the connecting tube (5); a material receiving barrel (746) located below the filter plate (71) is arranged at the upper end of the support plate (745); two execution groups are symmetrically arranged along the notch on the outer wall of the connecting tube (5); each execution group comprises two positioning tubes (747) symmetrically arranged along the length direction of the material receiving barrel (746); the positioning tubes (747) are in sliding contact with the filter plate (71); a plurality of through holes are provided on one side of the positioning tubes (747) close to the filter plate (71); and a mutually communicating air pipe (748) is commonly provided at the lower ends of the two positioning tubes (747) of the same execution group; An air pump (749) is installed on the inner bottom wall of the receiving barrel (746). The air inlet end of the air pump (749) is connected to the air pipe (748) through a connecting pipe, and the exhaust end of the air pump (749) extends downward through the supporting plate (745) to the outside.

5. A method for monitoring and pre-treating industrial cooling circulating water, comprising a system for monitoring and pre-treating industrial cooling circulating water according to any one of claims 1 to 4, characterized in that: The pretreatment method includes the following steps: S1: Cooling circulating water circulation: The cooled industrial circulating water is discharged into the chiller (2) through the cooling tower (1) via the pipeline (4), and then the industrial circulating water in the chiller (2) is discharged into the heat exchanger (3) via the pipeline (4) for heat exchange cooling. Then, the heat exchanger (3) discharges the cooled industrial circulating water into the chiller (2) and the cooling tower (1) via the pipeline (4) in sequence, thereby realizing the recycling of the industrial circulating water. S2: Cooling circulating water monitoring and filtration: Monitor the turbidity of industrial circulating water through the impurity removal unit (7) and filter out the residual particulate impurities in the industrial circulating water; S3: Cooling circulating water monitoring and regulation: The pH value of the industrial circulating water is monitored by the regulation unit (8), and the pH value of the industrial circulating water is regulated according to the monitoring result; S4: Reuse of cooling circulating water: The industrial circulating water after pretreatment passes through the impurity removal unit (7) and the regulating unit (8) and is discharged into the chiller (2) and then enters the heat exchanger (3) and the cooling tower (1) in sequence for recycling.

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