CN115259528B - Industrial water treatment system following subtraction concept - Google Patents
Industrial water treatment system following subtraction concept Download PDFInfo
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- CN115259528B CN115259528B CN202210866192.9A CN202210866192A CN115259528B CN 115259528 B CN115259528 B CN 115259528B CN 202210866192 A CN202210866192 A CN 202210866192A CN 115259528 B CN115259528 B CN 115259528B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
Abstract
The invention relates to the technical field of water treatment, in particular to an industrial water treatment system following a subtraction concept, which comprises a descaling device and a filtering device which are sequentially connected on an industrial circulating water pipeline in a bypass mode; an electrocoagulation component and a stripping component are arranged in the descaling device; the electrocoagulation component comprises an anode row and a cathode row, and an electrified insoluble substance is directly attached to an electrode to form a fouling layer; the stripping assembly comprises a scraper used for stripping dirt attached to the electrode; the filtering device is used for filtering and removing suspended matters which are insoluble in water. The invention adopts a water treatment mode of a subtraction concept; various medicaments added by adopting the addition concept for water treatment do not exist in the discharged wastewater; on one hand, industrial circulating water does not need to be discharged and replaced regularly, the discharge amount of waste water is small, and the utilization rate of water resources is improved; on the other hand, the discharged wastewater has no secondary medicament pollution, and the wastewater discharge treatment is simple.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to an industrial water treatment system following a subtraction concept.
Background
Industrial circulating water is mainly used for heat dissipation, the circulating water is cooled through a cooling tower in the heat dissipation mode, the cooling principle of the cooling tower is achieved mainly by absorbing latent heat of gasification through water evaporation, and as part of the circulating water in the cooling tower is evaporated, the water quantity is reduced, and therefore water needs to be replenished continuously. The water replenishing of the circulating water generally adopts tap water, and sometimes water treatment equipment is added for treatment and then replenishing. However, various ions such as calcium, magnesium, iron, carbonate ions and the like exist in the circulating water and the water supplement, the ions still remain in the circulating water along with the continuous evaporation of the water, the water quality is deteriorated for a long time, and when the water quality is deteriorated to a certain degree, the ions need to be completely replaced, the water in the circulating system is completely discharged, and the water with better water quality is injected again. This increases the water consumption on the one hand and also forms water pollution in the discharged circulating water on the other hand.
Therefore, when the circulating water is discharged for replacement, the discharged circulating water is generally subjected to water treatment in order to meet the discharge standard. The water treatment mode comprises physical treatment and chemical treatment: the physical method comprises the steps of utilizing various filter materials with different pore sizes, and utilizing an adsorption or blocking mode to remove impurities in water, wherein the more important adsorption mode is adsorption by using activated carbon, the blocking method is to lead water to pass through the filter materials, so that the impurities with larger volume cannot pass through, and then cleaner water is obtained, and the physical method also comprises a precipitation method, namely leading the impurities with smaller specific gravity to float on the water surface, or leading the impurities with larger specific gravity to precipitate below, and then separating and removing the impurities. The current chemical method is a water treatment method based on an additive concept, and is used for pertinently removing one or more pollutants by adding various medicaments into wastewater, for example, a technical process of adding medicaments to degrade the pollutants in the wastewater by utilizing the strong oxidizing property of free radicals and the like; various chemicals are used for converting impurities in water into substances which are less harmful to human bodies, or the impurities are concentrated, and the chemical treatment method with the longest history can be calculated by adding alum into water, collecting the impurities in the water, enlarging the volume, and then matching with a physical method for filtering to remove the impurities.
However, various ions in the industrial circulating water cannot be removed by a physical filtering method adopted by the existing water treatment, and various chemical agents added by a chemical method based on an addition concept cause secondary pollution to the water, so that the discharged industrial circulating water contains various chemical agents.
Disclosure of Invention
In order to solve the technical problem, the invention provides an industrial water treatment system following the subtraction concept, which comprises a descaling device and a filtering device which are sequentially connected on an industrial circulating water pipeline in a bypass mode;
the electric coagulation component and the stripping component are arranged in the descaling device; the electrocoagulation component comprises an anode row and a cathode row, and an electrified insoluble substance is directly attached to an electrode to form a fouling layer; the stripping assembly comprises a scraper used for stripping dirt attached to the electrode;
the filtering device is used for filtering and removing suspended matters which are insoluble in water.
Optionally, a sewage collecting groove is formed in the bottom surface inside the descaling device, and a sewage draining outlet is formed in the lower portion of the sewage collecting groove;
the anode row and the cathode row are arranged above the dirt collecting groove at intervals in pairs, the scraper is positioned between the anode row and the cathode row, the knife edge of the scraper is contacted with the surface of the anode row or the surface of the cathode row, the stripping assembly further comprises a driving motor, and the output shaft of the driving motor drives the scraper to move, so that the scraper strips dirt attached to the electrode; the dirt after stripping is deposited in a dirt collecting groove;
the dirty groove of collection disposes the suction pump, and the suction pump is sent back scale removal device inside with the water suction in the dirty inslot of collection after, makes the dirt after peeling off get into the dirty groove of collection with higher speed through the suction.
Optionally, the filtering device comprises a water inlet pipe, water inlet heads are mounted at two ends of the water inlet pipe, a frame is welded inside the water inlet heads, a filter screen is fixedly connected to the inner side of the frame, an internal thread joint is fixedly connected to one end of each water inlet head, the internal thread joint is connected with the water inlet pipe, a water outlet pipe is welded in the middle of the outer wall of the water inlet pipe, a flange plate is arranged on one side of the water outlet pipe, and a filtering mechanism is mounted on one side of the flange plate; the other end of the water inlet head is provided with a corrugated hose;
the filtering mechanism adopts non-woven fabric filter cotton as filtering material, and the periphery of the filtering mechanism is sealed by a sealing rubber ring with a T-shaped section.
Optionally, a flushing branch pipe is arranged on the bypass pipeline at the outlet of the filter screen, a flushing valve and a flushing pump are sequentially installed on the flushing branch pipe, an inlet of the flushing pump is connected with a flushing water source, and the flushing pump is used for performing back flushing on the descaling device and the filtering device.
Optionally, set up water supply pipe way at bypass pipeline's scale removal device front end, install the moisturizing pump on the water supply pipe way, moisturizing pump and water piping connection.
Optionally, a sedimentation tank, an ozone light energy catalytic reactor and a biological membrane filtering device are further arranged, wherein the sedimentation tank is used for storing sewage discharged by the flushing descaling device and the filtering device;
the sedimentation tank adopts the inlet connection of recovery tube and ozone light energy catalytic reactor, and the export of ozone light energy catalytic reactor and biofilm filter's inlet connection, biofilm filter's the export access moisturizing pump intake the end.
Optionally, the ozone light energy catalytic reactor comprises an ozone generator and a filter tank; wherein, the filter tank comprises a water distributor, a stirrer, three layers of reaction zone clapboards and an ultraviolet coil; the stirrer comprises a motor and a stirring paddle, the motor is arranged on the surface of the top of the filtering tank body, the stirring paddle is arranged in the inner cavity of the filtering tank body, and the stirring paddle is in transmission connection with the motor; the water distributor is installed at filter tank body inner chamber top stirring rake lower extreme, the water distributor bottom is equipped with first reaction zone, first reaction zone bottom is equipped with the second reaction zone, second reaction zone bottom is equipped with the third reaction zone, the third reaction zone bottom is equipped with the fourth reaction zone, ultraviolet coil pipe is all installed at first reaction zone, second reaction zone, third reaction zone, fourth reaction zone inner chamber top, the baffle is installed to ultraviolet coil pipe bottom one side, the recovery pump is installed in filter tank body left side, the three-way pipe is installed to the entrance side of recovery pump, ozone generator is installed to the three-way pipe bottom.
Optionally, the biofilm filtering device comprises a main body, a side plate is installed on one side of the main body, a drain pipe is installed on one side of the main body, which is opposite to the side plate, a water outlet pipe is installed at the position above the drain pipe, a water inlet pipe is installed at the position, close to the upper position of the side plate, on one side of the main body, and valves are installed at the tops of the water inlet pipe, the water outlet pipe and the drain pipe; the top of the side plate is provided with a blower which is connected with a one-way valve; the inside flashboard that adopts of main part separates for two chambeies, and the flashboard both sides all are equipped with the gag lever post, run through on the flashboard and install the backwash pump, backwash pump and air-blower all with controller electric connection.
Optionally, the system further comprises a controller, wherein the controller is connected with a water quality analyzer, and the water quality analyzer is arranged in the industrial circulating water pipeline and is used for detecting the water quality of the circulating water;
the controller controls the power output of the anode row and the cathode row according to the detected water quality data.
Optionally, pressure sensors are arranged at the front end and the rear end of the filtering device on the bypass pipeline, and the pressure sensors, the flushing valve and the flushing pump are all connected with the controller;
and the controller calculates a differential pressure value according to pressure values detected by the pressure sensors at the front end and the rear end of the filtering device, and when the differential pressure value reaches a preset threshold value, the controller starts the flushing valve and the flushing pump to reversely flush the descaling device and the filtering device.
According to the invention, by carrying out water treatment on the industrial circulating water, the operating efficiency of the heat exchange equipment of the industrial circulating water is not influenced by the deterioration of the water quality caused by evaporation of the industrial circulating water, and water resource waste and water pollution caused by the periodic replacement and discharge of the industrial circulating water are avoided; the descaling device and the filtering device for water treatment are connected to the industrial circulating water pipeline in a bypass mode, so that the existing industrial circulating water pipeline is short in reconstruction period and low in cost; the water treatment adopts the combination of an electrochemical mode and physical filtration, does not need to add medicament into circulating water, forms an anode and a cathode by electrifying an anode row and a cathode row, adsorbs various ions in the circulating water to form scale, and reduces the quantity of metal ions in the circulating water by mechanical stripping and discharging, namely, adopts a water treatment mode of a subtraction concept; therefore, even if a small amount of wastewater is discharged along with the scale, various medicaments added by water treatment adopting an addition concept do not exist in the discharged wastewater; on one hand, the industrial circulating water does not need to be completely discharged and replaced at regular intervals, the discharge amount of the waste water is small, and the utilization rate of water resources is improved; on the other hand, the discharged wastewater has no secondary medicament pollution, and the wastewater discharge treatment is simple. The industrial water treatment technology adopted by the invention has good effects of corrosion inhibition, scale inhibition, sterilization and algae removal, does not need to add any chemical agent into the industrial water using the technology, has less forced sewage discharge amount, can save the agent cost and the water charging cost, and has good effects of energy conservation, emission reduction and environmental protection. As a clean treatment process, the industrial water treatment technology has incomparable advantages compared with other water treatment technologies, and is an important method for solving the negative problems brought by the use of chemical agents in the field of industrial water treatment.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an industrial water treatment system following a subtractive approach in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of a descaling device employed in an embodiment of the industrial water treatment system according to the present invention, which follows a subtractive concept;
FIG. 3 is a schematic diagram of a filtration device employed in an embodiment of the industrial water treatment system following the subtractive concept of the present invention;
FIG. 4 is a schematic diagram of the sewage recovery process employed in an embodiment of the industrial water treatment system of the present invention following the subtractive concept;
FIG. 5 is a schematic diagram of an ozone light energy catalytic reactor for wastewater recovery in an embodiment of an industrial water treatment system according to the present invention following a subtraction concept;
FIG. 6 is a schematic diagram of a signal amplification circuit for a pressure sensor configuration of an embodiment of an industrial water treatment system of the present invention following the subtraction concept.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, an embodiment of the present invention provides an industrial water treatment system following the subtraction concept, which includes a descaling device 1 and a filtering device 2 connected to an industrial circulating water pipeline 4 in sequence in a bypass manner;
the descaling device 1 is internally provided with an electrocoagulation component and a stripping component; the electrocoagulation component comprises an anode row and a cathode row, and an electrified insoluble substance is directly attached to an electrode to form a fouling layer; the stripping assembly comprises a scraper used for stripping dirt attached to the electrode;
the filtering device 2 is used for filtering and removing suspended matters which are insoluble in water.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the industrial circulating water is subjected to water treatment, so that the operating efficiency of heat exchange equipment of the industrial circulating water is not influenced by the fact that the water quality of the industrial circulating water is deteriorated due to evaporation, and water resource waste and water pollution caused by periodic replacement and discharge of the industrial circulating water are avoided; the descaling device and the filtering device for water treatment are connected to the industrial circulating water pipeline in a bypass mode, so that the existing industrial circulating water pipeline is short in reconstruction period and low in cost; the water treatment combines an electrochemical mode and physical filtration, medicaments are not required to be added into circulating water, an anode row and a cathode row are electrified to form an anode and a cathode, various ions in the circulating water are adsorbed to form scale, and when the scale reaches a certain thickness, a scraper is used for mechanical stripping and discharging, so that the quantity of metal ions in the circulating water is reduced, namely, a water treatment mode adopting a subtraction concept is adopted; therefore, even if a small amount of wastewater is discharged along with the scale, various agents added by water treatment adopting an additive concept do not exist in the discharged wastewater; on one hand, the scheme ensures that the industrial circulating water does not need to be completely discharged and replaced at regular intervals, the discharge amount of the waste water is small, and the utilization rate of water resources is improved; on the other hand, the discharged wastewater has no secondary medicament pollution, and the wastewater discharge treatment is simple.
In one embodiment, as shown in fig. 2, a dirt collecting groove 11 is arranged on the bottom surface inside the descaling device 1, and a drain outlet 12 is arranged at the lower part of the dirt collecting groove 11;
the anode row 13 and the cathode row 14 are arranged above the dirt collecting groove 11 in a paired and spaced arrangement, the scraper 15 is positioned between the anode row 13 and the cathode row 14, the blade of the scraper 15 is in contact with the surface of the anode row 13 or the surface of the cathode row 14, the stripping assembly further comprises a driving motor 16, and an output shaft 17 of the driving motor 16 drives the scraper 15 to move, so that the scraper 15 strips dirt attached to the electrodes; the dirt after stripping is deposited in the dirt collecting groove 11;
the dirt collection tank 11 is provided with a suction pump 18, and the suction pump 18 sucks the water in the dirt collection tank 11 and sends the water back to the inside of the scale removing device 1, so that the peeled dirt is accelerated to enter the dirt collection tank by suction.
The working principle and the beneficial effects of the technical scheme are as follows: the anode row and the cathode row in the scheme can be in a sheet type or a plate type, through holes can be formed in the sheet or the plate for water circulation, and the anode row and the cathode row can be arranged in multiple pairs at intervals in an alternating mode, so that the electrochemical water treatment efficiency is improved; electrifying the anode row and the cathode row to form an anode and a cathode, adsorbing various ions in the circulating water to form scale, mechanically stripping the scale by adopting a scraper when the scale reaches a certain thickness, starting a suction pump to suck the stripped scale into a dirt collection tank, and cleaning the scale when the scale in the dirt collection tank is deposited to a set condition; the mechanical stripping and suction of the water scale can be performed in a regular mode or a set condition mode, so that the running time of a driving motor and a suction pump is shortened, the energy consumption is reduced, and the efficiency is improved.
In one embodiment, as shown in fig. 3, the filtering device 2 includes a water inlet pipe 21, water inlet heads 22 are installed at two ends of the water inlet pipe 21, a frame 221 is welded inside the water inlet head 22, a filter screen is fixedly connected to the inner side of the frame 221, an internal thread connector 222 is fixedly connected to one end of the water inlet head 22, the internal thread connector 222 is connected to the water inlet pipe 21, a water outlet pipe 23 is welded to the middle of the outer wall of the water inlet pipe 21, a flange 231 is installed on one side of the water outlet pipe 23, and a filtering mechanism 24 is installed on one side of the flange 231; the other end of the water inlet head 22 is provided with a corrugated hose 223;
the filtering mechanism 24 adopts non-woven fabric filter cotton as a filtering material, and the periphery of the filtering mechanism 24 is sealed by a sealing rubber ring with a T-shaped section.
The working principle and the beneficial effects of the technical scheme are as follows: the filtering device is T-shaped, the water inlet pipe of the filtering device is provided with two connectors, two parallel descaling devices can be connected at the front end, and the water treatment capacity can be increased or the descaling device redundancy can be set; the filtering device adopts two-step filtering, and the first step of filtering adopts a filter screen arranged on the water inlet head to carry out preliminary filtering so as to remove impurities with larger sizes; the second step is filtered and is adopted the filtering mechanism who sets up in outlet pipe ring flange department to the non-woven fabrics filter pulp carries out further filtration as filtering material, has improved the filter effect, can effectively ensure the quality of water of circulating water.
In one embodiment, as shown in fig. 1, a flushing branch pipe 5 is arranged on the bypass pipeline 3 at the outlet of the filter screen 2, a flushing valve 6 and a flushing pump 7 are sequentially arranged on the flushing branch pipe 5, the inlet of the flushing pump 7 is connected with a flushing water source, and the flushing pump 7 is used for back flushing the descaling device 1 and the filter device 2.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the flushing branch pipe is arranged, when the water scale in the descaling device is accumulated to a certain degree or the water resistance of the filtering device is increased to a preset threshold value, the valves at the two ends of the bypass pipeline are closed, the communication between the bypass pipeline and the industrial circulating water pipeline is disconnected, the water outlets of the descaling device and the filtering device are opened, the flushing valve and the flushing pump are opened, the descaling device and the filtering device are reversely flushed, and the flushing device is recovered to be used for water treatment of industrial circulating water after flushing is finished; this scheme can be so that scale removal device and filter equipment can be used for water treatment for a long time to avoid appearing bypass pipeline and block up or water treatment facilities efficiency and descend, reduce use cost.
In one embodiment, as shown in fig. 1, a water replenishing pipe 8 is arranged at the front end of the descaling device 1 of the bypass pipeline 3, a water replenishing pump 9 is installed on the water replenishing pipe 8, and the water replenishing pump 9 is connected with a tap water pipe.
The working principle and the beneficial effects of the technical scheme are as follows: the scheme is provided with the water supplementing pipeline for supplementing water loss caused by evaporation of industrial circulating water in the cooling tower and ensuring the circulation and function realization of the industrial circulating water; the water replenishing pipeline is arranged at the front end of the descaling device, and the descaling device and the filtering device are used for treating the replenished water, so that the water quality replenished into the circulating system can be controlled, and the circulating water quality reduction caused by the water replenishing quality is avoided; the scheme adopts the same set of water treatment equipment to treat industrial circulating water and water supplement, and can reduce the cost.
In one embodiment, as shown in fig. 4, a sedimentation tank 10, an ozone light energy catalytic reactor 20 and a biological membrane filtering device 30 are further provided, wherein the sedimentation tank 10 is used for storing sewage discharged from the flushing and descaling device 1 and the filtering device 2;
the sedimentation tank 10 is connected with the inlet of the ozone light energy catalytic reactor 20 by adopting a recovery pipe, the outlet of the ozone light energy catalytic reactor 20 is connected with the inlet of the biomembrane filtering device 30, and the outlet of the biomembrane filtering device 30 is connected with the water inlet end of the water replenishing pump 9.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the sedimentation tank, the ozone light energy catalytic reactor and the biological membrane filtering device are arranged and used for treating wastewater discharged by the flushing descaling device and the filtering device, and then the wastewater is sent to a processing industry circulating water system for recycling through connecting a water supplementing pipeline, so that water discharge can be further reduced, water resources are saved, and wastewater discharge pollution is avoided; after the wastewater is precipitated in the sedimentation tank, the wastewater is treated by the ozone light energy catalytic reactor device and the biomembrane filtering device, the sludge can be dried and transported outside, and the treated water flows back to the treatment process before the ozone light energy catalytic reactor device and the biomembrane filtering device and is recycled.
In one embodiment, as shown in fig. 5, the ozone photo-catalytic reactor 20 includes an ozone generator 201 and a filter tank 202; wherein, the filter tank 202 comprises a water distributor, a stirrer 2023, a three-layer reaction zone clapboard and an ultraviolet coil; the stirrer comprises a motor 2021 and a stirring paddle 2022, the motor 2021 is arranged on the surface of the top of the filtering tank body, the stirring paddle 2022 is arranged in the inner cavity of the filtering tank body, and the stirring paddle 2022 is in transmission connection with the motor 2021; a water distributor 2023 is installed at the lower end of a stirring paddle 2022 at the top of an inner cavity of a filter tank body, a first reaction zone 2024 is arranged at the bottom of the water distributor, a second reaction zone 2025 is arranged at the bottom of the first reaction zone 2024, a third reaction zone 2026 is arranged at the bottom of the second reaction zone 2025, a fourth reaction zone 2027 is arranged at the bottom of the third reaction zone 2026, ultraviolet coils 2028 are installed at the tops of the inner cavities of the first reaction zone, the second reaction zone, the third reaction zone and the fourth reaction zone, a baffle 2029 is installed at one side of the bottom of each ultraviolet coil 2028, a recovery pump 203 is installed at the left side of the filter tank body, a three-way pipe 204 is installed at the inlet side of each recovery pump 203, and an ozone generator 201 is installed at the bottom end of each three-way pipe 204.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme is to the waste water that water treatment produced, discharge into the sedimentation tank and deposit the back, reentrant ozone light energy catalytic reaction ware and the filtration jar of ozone light energy catalytic reaction ware, mutually support through motor and stirring rake, can make recovery water and ozone reaction abundant, the consumption of ozone has been reduced, the ultraviolet coil pipe in the multiunit reaction zone can make the time extension that recovery waste water stayed under the ultraviolet catalysis again, this scheme can improve ozone light energy catalytic reaction ware to the effect efficiency of getting rid of recovery waste water COD.
In one embodiment, the biomembrane filtering device comprises a main body, wherein a side plate is arranged on one side of the main body, a sewage discharge pipe is arranged on one side of the main body, which is opposite to the side plate, a water outlet pipe is arranged at the position above the sewage discharge pipe, a water inlet pipe is arranged at the position, close to the upper part of the side plate, on one side of the main body, and valves are arranged at the tops of the water inlet pipe, the water outlet pipe and the sewage discharge pipe; the top of the side plate is provided with a blower which is connected with a one-way valve; the inside flashboard that adopts of main part separates for two chambeies, and the flashboard both sides all are equipped with the gag lever post, run through on the flashboard and install the backwash pump, backwash pump and air-blower all with controller electric connection.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme is to the biomembrane filter equipment that the waste water that the water treatment produced was used, when carrying out the water treatment of waste water, inserts in the main part jack that two users need the position through two gag lever posts to be fixed in the position department that the inside user of cavity needs, let the user be convenient for adjust the position of adjustment flashboard, thereby reached and let the water in the inside two chambeies of device can carry out the effect adjusted according to the user demand.
In one embodiment, the system further comprises a controller, wherein the controller is connected with a water quality analyzer, and the water quality analyzer is arranged in the industrial circulating water pipeline and is used for detecting the water quality of the circulating water;
the controller controls the power output of the anode row and the cathode row according to the detected water quality data.
The working principle and the beneficial effects of the technical scheme are as follows: this scheme is through setting up the quality of water that water quality analyzer detected industrial circulating water pipeline intermediate circulating water, according to quality of water data control and the power output who adjusts anode row and cathode row for the power output who anode row and cathode row suits with the quality of water in the industrial circulating water pipeline, avoids the power undersize can not ensure water treatment efficiency and quality of water, also avoids the too big extravagant electric energy of power or reduces the water treatment efficiency.
In one embodiment, pressure sensors are arranged at the front end and the rear end of the filtering device on the bypass pipeline 3, and the pressure sensors, the flushing valve 6 and the flushing pump 7 are all connected with a controller;
the controller calculates the pressure difference value according to the pressure sensor detection pressure values at the front end and the rear end of the filtering device, and when the pressure difference value reaches a preset threshold value, the controller opens the flushing valve 6 and the flushing pump 7 to perform reverse flushing on the descaling device 1 and the filtering device 2.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the pressure sensors are arranged at the front end and the rear end of the filtering device to detect pressure values, the pressure difference value is calculated according to the pressure values at the front end and the rear end, so that the filth blockage condition of the filtering device is mastered, and whether the filtering device needs to be washed or not is judged by comparing the pressure difference value with a preset threshold value; the water treatment capacity and efficiency of the descaling device and the filtering device are restored by flushing, so that the water quality of the industrial circulating water is guaranteed; this scheme can be so that scale removal device and filter equipment can be used for water treatment for a long time to avoid appearing bypass pipeline and block up or water treatment facilities efficiency and descend, reduce use cost.
In one embodiment, as shown in fig. 6, the pressure sensor is configured with a signal amplification circuit including an amplifier U1, an amplifier U2, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R7, a resistor R8, a resistor R9, and a resistor R10;
the positive electrode of the capacitor C5 is connected with the pressure sensor, the signal output end of the signal receiving component is connected with the positive electrode of the capacitor C5, the negative electrode of the capacitor C5 is respectively connected with the pin 1 of the amplifier U1 and the positive electrode of the capacitor C6, and the negative electrode of the capacitor C6 is respectively connected with the pin 3 of the amplifier U1 and one end of the resistor R7; a pin 2 of the amplifier U1 is respectively connected with the anode of a capacitor C7 and the cathode of a capacitor C8, the cathode of the capacitor C7 is grounded, and the anode of the capacitor C8 is respectively connected with a pin 4 of the amplifier U1 and one end of a resistor R9;
the other end of the resistor R7 is connected with an input pin 1 of the amplifier U2 and one end of the resistor R8, the other end of the resistor R9 is connected with an input pin 2 of the amplifier U2 and one end of the resistor R10, the other end of the resistor R10 is connected with a control pin of the controller, and the other end of the resistor R8 is connected with an output pin 3 of the amplifier U2 and an input pin of the controller.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the pressure sensor is provided with the signal amplification circuit, signal processing is carried out through the control command, and the pressure detection signals received by the input pins of the controller can be amplified, so that the small difference of the pressure detection signals can be more sensitively identified, and the detection precision and accuracy are improved; the anti-interference capability can be improved by amplifying the pressure detection signal, and the error of the pressure detection signal is reduced; the signal amplification circuit adopted by the scheme has low power consumption, small drift, overcurrent protection and long service life.
In one embodiment, the controller is connected with an outdoor temperature sensor and an outdoor humidity sensor, and the outdoor temperature sensor and the outdoor humidity sensor are used for detecting outdoor temperature and outdoor humidity;
the controller is internally provided with a power regulation model, and the power regulation model calculates the real-time required power of the anode row and the cathode row by adopting the following formula:
in the above formula, Q represents the real-time required power of the anode row and the cathode row; tau represents the power factor of electrochemical water treatment of the descaling device, namely the power required for removing impurity ions in unit quantity of water; f (t, d) represents the water evaporation capacity function of the cooling tower on the industrial circulating water pipeline along with the change of the outdoor temperature t and the outdoor humidity d; n represents the number of ion species required to be electrochemically treated contained in the circulating water in the industrial circulating water pipeline; w is a i The residual concentration of the ith ion needing to be subjected to electrochemical treatment after the industrial circulating water pipeline is subjected to water treatment is represented; v represents the amount of circulating water in the industrial circulating water pipeline; w is a i ′ Indicating the current concentration of the i-th ion of the circulating water in the industrial circulating water pipeline which needs to be treated by the electrochemistry; w is a i “ A maximum limiting concentration of i-th ions indicative of the circulating water in the industrial circulating water line that needs to be electrochemically treated;
the controller calculates the evaporation capacity of the circulating water according to the water evaporation capacity function f (t, d) to control the water replenishing quantity; and controlling the input power of the anode row and the cathode row according to the real-time required power calculated by the power regulation model.
The working principle and the beneficial effects of the technical scheme are as follows: according to the scheme, the outdoor temperature and the outdoor humidity are detected, a water evaporation capacity function of the cooling tower along with the change of the outdoor temperature t and the outdoor humidity d is constructed, the water replenishing amount is controlled by the water evaporation capacity, and the power consumption of the water replenishing pump can be accurately controlled; on the basis of a water evaporation capacity function, the real-time required power obtained by calculation of the power regulation model is used for controlling the input power of the anode row and the cathode row, and the power of the descaling device is accurately controlled, so that the power of the descaling device is always matched with the water quality condition to be treated, on one hand, the water quality of circulating water can be accurately controlled, and on the other hand, the energy consumption of the descaling device can be reduced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An industrial water treatment system following a subtraction concept is characterized by comprising a descaling device and a filtering device which are sequentially connected on an industrial circulating water pipeline in a bypass mode;
the electric coagulation component and the stripping component are arranged in the descaling device; the electrocoagulation component comprises an anode row and a cathode row, and an electrified insoluble substance is directly attached to an electrode to form a scaling layer; the stripping assembly comprises a scraper used for stripping dirt attached to the electrode;
the filtering device is used for filtering and removing suspended matters which are insoluble in water;
the water quality analyzer is arranged on an industrial circulating water pipeline and is used for detecting the water quality of the circulating water;
the controller controls the power output of the anode row and the cathode row according to the detected water quality data;
the controller is connected with an outdoor temperature sensor and an outdoor humidity sensor which are used for detecting outdoor temperature and outdoor humidity;
the controller is internally provided with a power regulation model, and the power regulation model calculates the real-time required power of the anode row and the cathode row by adopting the following formula:
in the above formula, Q represents the real-time required power of the anode row and the cathode row; τ represents the power factor of electrochemical water treatment of the descaling device, i.e. the power required to remove impurity ions in a unit amount of water; f (t, d) represents the water evaporation capacity function of the cooling tower on the industrial circulating water pipeline along with the change of the outdoor temperature t and the outdoor humidity d; n represents the required pass through of the circulating water contained in the industrial circulating water pipelineThe number of electrochemically treated ion species; w is a i The residual concentration of the ith ion needing to be subjected to electrochemical treatment after the industrial circulating water pipeline is subjected to water treatment is represented; v represents the circulating water quantity in the industrial circulating water pipeline; w is a i ′ Indicating the current concentration of the ith ion required to be electrochemically treated in the circulating water in the industrial circulating water pipeline; w is a i “ A maximum limiting concentration of i-th ions indicative of the circulating water in the industrial circulating water line that needs to be electrochemically treated;
the controller calculates the evaporation capacity of the circulating water according to a water evaporation capacity function f (t, d) to control the water replenishing quantity; and controlling the input power of the anode row and the cathode row according to the real-time required power calculated by the power regulation model.
2. The industrial water treatment system following the subtraction concept according to claim 1, wherein a sewage collection tank is arranged on the bottom surface inside the descaling device, and a sewage discharge outlet is arranged at the lower part of the sewage collection tank;
the anode row and the cathode row are arranged above the dirt collecting groove at intervals in pairs, the scraper is positioned between the anode row and the cathode row, the knife edge of the scraper is contacted with the surface of the anode row or the surface of the cathode row, the stripping assembly further comprises a driving motor, and the output shaft of the driving motor drives the scraper to move, so that the scraper strips dirt attached to the electrodes; the dirt after stripping is deposited in a dirt collecting groove;
the dirt collecting groove is provided with a suction pump, the suction pump sucks water in the dirt collecting groove and then sends the water back to the inside of the dirt removing device, and the dirt peeled off by suction enters the dirt collecting groove at an accelerated speed.
3. The industrial water treatment system following the subtraction concept according to claim 1, wherein the filtering device comprises a water inlet pipe, water inlet heads are installed at two ends of the water inlet pipe, a frame is welded inside the water inlet heads, a filtering net is fixedly connected inside the frame, an internal thread joint is fixedly connected at one end of the water inlet heads, the internal thread joint is connected with the water inlet pipe, a water outlet pipe is welded in the middle of the outer wall of the water inlet pipe, a flange is arranged on one side of the water outlet pipe, and a filtering mechanism is installed on one side of the flange; the other end of the water inlet head is provided with a corrugated hose;
the filtering mechanism adopts non-woven fabric filter cotton as filtering material, and the periphery of the filtering mechanism is sealed by a sealing rubber ring with a T-shaped section.
4. The industrial water treatment system following the subtractive concept according to claim 1, wherein a flushing branch is arranged on the bypass pipeline at the outlet of the filter screen, a flushing valve and a flushing pump are sequentially arranged on the flushing branch, the inlet of the flushing pump is connected with a flushing water source, and the flushing pump is used for back flushing the descaling device and the filter device.
5. The industrial water treatment system following the subtraction concept according to claim 1, wherein a water replenishing pipe is provided at a front end of the descaling device of the bypass pipe, and a water replenishing pump is installed on the water replenishing pipe and connected with a tap water pipe.
6. The industrial water treatment system following the subtraction concept according to claim 5, wherein a sedimentation tank, an ozone light energy catalytic reactor and a biological membrane filtering device are further provided, the sedimentation tank is used for storing sewage discharged by the flushing descaling device and the filtering device;
the sedimentation tank adopts the inlet connection of recovery tube and ozone light energy catalytic reactor, and the export of ozone light energy catalytic reactor and biofilm filter's inlet connection, biofilm filter's the export access moisturizing pump intake the end.
7. The industrial water treatment system following a subtractive concept according to claim 6 wherein the ozone-photo-catalytic reactor comprises an ozone generator and a filter tank; wherein, the filter tank comprises a water distributor, a stirrer, a three-layer reaction zone clapboard and an ultraviolet coil; the stirrer comprises a motor and a stirring paddle, the motor is arranged on the surface of the top of the filtering tank body, the stirring paddle is arranged in the inner cavity of the filtering tank body, and the stirring paddle is in transmission connection with the motor; the water distributor is installed at filter tank body inner chamber top stirring rake lower extreme, the water distributor bottom is equipped with first reaction zone, first reaction zone bottom is equipped with the second reaction zone, second reaction zone bottom is equipped with the third reaction zone, the third reaction zone bottom is equipped with the fourth reaction zone, ultraviolet coil pipe is all installed at first reaction zone, second reaction zone, third reaction zone, fourth reaction zone inner chamber top, the baffle is installed to ultraviolet coil pipe bottom one side, the recovery pump is installed in filter tank body left side, the three-way pipe is installed to the entrance side of recovery pump, ozone generator is installed to the three-way pipe bottom.
8. The industrial water treatment system following the subtraction concept according to claim 6, wherein the biomembrane filtering device comprises a main body, a side plate is installed on one side of the main body, a sewage discharge pipe is installed on one side of the main body opposite to the side plate, a water outlet pipe is installed above the sewage discharge pipe, a water inlet pipe is installed on one side of the main body close to the upper position of the side plate, and valves are installed at the tops of the water inlet pipe, the water outlet pipe and the sewage discharge pipe; the top of the side plate is provided with an air blower which is connected with a one-way valve; the inside flashboard that adopts of main part separates for two chambeies, and the flashboard both sides all are equipped with the gag lever post, run through on the flashboard and install the backwash pump, backwash pump and air-blower all with controller electric connection.
9. The industrial water treatment system following the subtraction concept according to claim 4, wherein pressure sensors are provided at both front and rear ends of the filtering device on the bypass pipeline, and the pressure sensors, the flushing valve and the flushing pump are connected with the controller;
the controller calculates a differential pressure value according to pressure values detected by pressure sensors at the front end and the rear end of the filtering device, and when the differential pressure value reaches a preset threshold value, the controller opens the flushing valve and the flushing pump to perform back flushing on the descaling device and the filtering device.
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| CA2425693A1 (en) * | 2000-10-12 | 2003-04-11 | Moltec Co., Ltd. | Method of circulating water in circulatory water tank system and liquid compositions for sterilizing and disinfecting circulatory water tank system |
| CN205313289U (en) * | 2016-01-19 | 2016-06-15 | 沧州信昌化工股份有限公司 | Cooling circulating water treatment system |
| CN210885689U (en) * | 2019-06-04 | 2020-06-30 | 湖北三峡职业技术学院 | Water pollution treatment circulation purifier |
| CN213060304U (en) * | 2020-06-17 | 2021-04-27 | 内蒙古弘牧晟科技股份有限公司 | Automatic electrochemistry water treatment facilities of scale removal |
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