CN110204019B - Full-automatic accurate dosing system of circulating water - Google Patents
Full-automatic accurate dosing system of circulating water Download PDFInfo
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- CN110204019B CN110204019B CN201910372242.6A CN201910372242A CN110204019B CN 110204019 B CN110204019 B CN 110204019B CN 201910372242 A CN201910372242 A CN 201910372242A CN 110204019 B CN110204019 B CN 110204019B
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
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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
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/04—Oxidation reduction potential [ORP]
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2209/05—Conductivity or salinity
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
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Abstract
The invention discloses a full-automatic accurate dosing system for circulating water, and aims to overcome the defect that dosing amount in circulating water treatment is not accurate enough and the effect of circulating water treatment is influenced. The device comprises a circulating water conveying mechanism, a water quality online detection device, a precise dosing cabinet and a controller, wherein the circulating water conveying mechanism comprises a circulating water tank, a circulating water pipe and a circulating water pump, a sewage discharge branch pipe is communicated on the circulating water pipe, a sewage discharge electric valve is installed on the sewage discharge branch pipe, one end of the circulating water pipe is connected with an outlet of the circulating water pump, the other end of the circulating water pipe is communicated with the upper part of the circulating water tank, a water inlet of the circulating water pump is connected with a water taking pipe, the water taking pipe is communicated with the lower part of the circulating water tank, a sampling; a sulfuric acid filling device, a non-oxidizing bactericide filling device, an oxidizing bactericide filling device and a corrosion scale inhibitor filling device are arranged in the precise dosing cabinet.
Description
Technical Field
The invention relates to an industrial circulating water treatment technology, in particular to a full-automatic accurate dosing system for circulating water.
Background
With the development of industry and the demand of life, the consumption of water is greatly increased, so that the water resource saving becomes urgent. Water is widely used as a cooling medium due to its abundant sources, low cost, large heat capacity, and the like. The adoption of the circulating cooling water is an important way for saving water resources, and the circulating cooling water with high concentration times can also reduce the environmental pollution. When an industrial circulating water system is operated, scaling or corrosion tendency is generated due to the comprehensive influence of factors such as the hardness, the pH value, the concentration multiple and the mass propagation of microorganisms of circulating water, and the scaling or corrosion tendency and the safety and the operation efficiency of a circulating cooling system are both adversely affected. Traditional circulating water system exists degree of automation low, control technique and management are more extensive, the energy consumption is huge, characteristics such as polluted environment, adopt artifical sample analysis circulating water quality of water usually, refer to circulating water process standard, add a certain amount of medicament to the circulating water, whole process precision is poor, personnel intensity of labour is high, artificial factor interference is heavier, the medicament adds the input and is few, cause circulating water quality of water not up to standard, influence equipment safety and operating efficiency, the medicament adds the input greatly, cause cost-push, the medicament is extravagant, quality of water is polluted by the medicament, need a large amount of blowdown control quality of water, operation concentration multiple is low, polluted environment.
Disclosure of Invention
The invention overcomes the defects that the circulating water treatment dosing operation is inconvenient, the dosing amount is not accurate enough, and the circulating water treatment effect is influenced, and provides a full-automatic accurate dosing system for circulating water, which can accurately control the dosing amount, realize automatic dosing, is convenient to dose, ensures the treatment effect of the circulating water, is beneficial to reducing the cost and improving the working efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: a full-automatic accurate dosing system for circulating water comprises a circulating water conveying mechanism, a water quality online detection device, an accurate dosing cabinet and a controller, wherein the circulating water conveying mechanism comprises a circulating water tank, a circulating water pipe and a circulating water pump, the circulating water pipe is communicated with a sewage branch pipe, a sewage electric valve is installed on the sewage branch pipe, one end of the circulating water pipe is connected with an outlet of the circulating water pump, the other end of the circulating water pipe is communicated with the upper part of the circulating water tank, a water inlet of the circulating water pump is connected with a water taking pipe, the water taking pipe is communicated with the lower part of the circulating water tank, the circulating water pipe is; a sulfuric acid filling device, a non-oxidizing bactericide filling device, an oxidizing bactericide filling device and a corrosion scale inhibitor filling device are arranged in the precise bactericide filling cabinet, the sulfuric acid filling device, the non-oxidizing bactericide filling device, the oxidizing bactericide filling device and the corrosion scale inhibitor filling device respectively comprise a medicament storage tank, a metering pump, an inlet electric valve and an outlet electric valve, the metering pump is communicated between the circulating water pipe and the medicament storage tank, the inlet electric valve is arranged on the inlet side of the metering pump, and the outlet electric valve is arranged on the outlet side of the metering pump; and the controller controls the opening and closing of the metering pump, the inlet electric valve and the outlet electric valve according to the read detection data of the water quality online detection device.
Circulating water in the circulating water tank is conveyed into the circulating water pipe under the action of the circulating water pump and finally returns to the circulating water tank, the water quality online detection device performs sampling detection on the water quality of the circulating water flowing from the circulating water pipe into the sampling branch pipe, and the controller controls the metering pump, the inlet electric valve and the outlet electric valve to be opened and closed according to detection data of the water quality online detection device. When the water quality on-line detection device detects that the PH value of the circulating water is greater than a set value of 8.8, the controller compares the detected PH value with the set PH value, and then calculates the amount of sulfuric acid to be added by combining the total water amount in the circulating water tank, starts a metering pump, an inlet electric valve and an outlet electric valve of the sulfuric acid filling device, calculates the flow, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow reaches the amount of the sulfuric acid to be filled, so that the filling of the sulfuric acid is completed. Similarly, when the online water quality detection device detects that the concentration of the circulating water corrosion scale inhibitor is lower than a set value of 30mg/L, the controller compares the detected concentration with the set concentration, and then calculates the amount of the corrosion scale inhibitor to be added by combining the total water amount in the circulating water tank, starts a metering pump, an inlet electric valve and an outlet electric valve of the corrosion scale inhibitor filling device, calculates the flow, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow reaches the amount of the corrosion scale inhibitor to be filled, so that the filling of the corrosion scale inhibitor is completed.
When the time interval between the filling of the oxidizing bactericide is more than 15 days from the last filling, the controller calculates the amount of the oxidizing bactericide to be filled when the circulating water reaches the set concentration of the oxidizing bactericide according to the total water amount in the circulating water tank, opens the metering pump, the inlet electric valve and the outlet electric valve of the oxidizing bactericide filling device, calculates the flow, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow reaches the amount of the oxidizing bactericide to be filled, thereby completing the filling of the oxidizing bactericide. Similarly, when the time interval between the non-oxidizing bactericide filling and the last filling exceeds 90 days, the controller calculates the amount of the non-oxidizing bactericide to be filled when the circulating water reaches the set concentration of the non-oxidizing bactericide according to the total water amount in the circulating water tank, starts the metering pump, the inlet electric valve and the outlet electric valve of the non-oxidizing bactericide filling device, calculates the flow rate, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow rate reaches the amount of the non-oxidizing bactericide to be filled, so that the filling of the non-oxidizing bactericide is completed.
When the water quality online detection device detects that the conductivity of the circulating water is greater than a set value 5000, the controller compares the detected concentration with the standard of the conductivity of the circulating water, and calculates the amount of the circulating water to be discharged by combining the total water amount in the circulating water tank, and calculates whether the discharged water is lower than the minimum limit, if so, water is supplemented, and the water is supplemented until the water level of the circulating water tank is on line and stopped; if not, opening the blowdown electrically operated valve according to the calculated blowdown amount to blowdown, supplementing water after the blowdown is finished, and stopping the water supplementing on-line to the liquid level of the circulating water tank.
The filled medicament returns to the circulating water tank along with the circulating water, and the medicament and the circulating water in the circulating water tank are uniformly and fully contacted to carry out water quality treatment on the circulating water. After dosing is finished, the water quality online detection device carries out water quality detection on the circulating water again, the controller judges whether the water quality reaches the standard according to the read data, dosing is continuously carried out when the water quality does not reach the standard until the water quality reaches the standard, and dynamic dosing is realized. The full-automatic accurate dosing system for the circulating water can accurately control the dosing amount, realize automatic dosing, is convenient to operate, ensures the treatment effect of the circulating water, is favorable for reducing the cost and improves the working efficiency.
Preferably, the water quality online detection device comprises a pH value online detector, an ORP online detector, a conductivity online detector and a medicament concentration online detector.
The oxidizing bactericide filling device is used for filling the oxidizing bactericide, and the oxidizing bactericide is filled into the circulating water to kill the generation and propagation of microorganisms in the circulating water. The non-oxidizing bactericide filling device is used for filling the non-oxidizing bactericide, and the non-oxidizing bactericide is filled into the circulating water to inhibit the generation and the propagation of microorganisms in the circulating water. The corrosion scale inhibitor filling device is used for filling the corrosion scale inhibitor, and the corrosion scale inhibitor is filled into circulating water to prevent the circulating water from scaling. The sulfuric acid filling device is used for filling dilute sulfuric acid, and the dilute sulfuric acid is filled into circulating water to adjust the pH value of the circulating water and relieve the corrosion of the circulating water to equipment. And the pH on-line detector is used for detecting the pH value of the circulating water and providing a basis for the addition amount of the sulfuric acid. And the ORP online detector is used for detecting the oxidability and the reducibility of circulating water and monitoring the adding effect of an oxidizing bactericide. And the conductivity online detector is used for detecting the conductivity of the circulating water and providing a basis for system pollution discharge. And the medicament concentration online detector is used for detecting the concentration of each medicament of the circulating water and providing a basis for the addition amount of the corrosion scale inhibitor.
Preferably, a stirrer for stirring the liquid in the chemical tank is attached to the chemical tank of the sulfuric acid filling apparatus. The stirrer is convenient for stirring and diluting the dilute sulfuric acid, so that the dilute sulfuric acid is more uniform.
Preferably, the chemical storage tank of the sulfuric acid filling device is communicated with the concentrated sulfuric acid storage tank through a delivery pipe, a sulfuric acid filling electric valve is installed on the delivery pipe, and a liquid level meter and a water replenishing electric valve are installed on the chemical storage tank of the sulfuric acid filling device. When the liquid level of a medicament storage tank of the sulfuric acid filling device is lower than the lower limit, a sulfuric acid filling electric valve is opened, the medicament storage tank is replenished with liquid, when the liquid level in the medicament storage tank reaches the concentrated sulfuric acid liquid level on line, the sulfuric acid filling electric valve is closed, a water replenishing electric valve on the medicament storage tank is opened, a stirrer is started, water is replenished to the liquid level on line of the medicament storage tank, and the water replenishing electric valve and the stirrer are closed.
Preferably, each metering pump is connected with a standby metering pump in parallel, and a standby inlet electric valve and a standby outlet electric valve are respectively arranged on the inlet side and the outlet side of the standby metering pump. The arrangement of the standby metering pump is convenient for the maintenance of the metering pump, and the maintenance without shutdown can be realized.
Preferably, a rotatable water inlet rotating pipe is arranged in the circulating water tank, the water inlet rotating pipe is communicated with a water taking pipe, a driving motor for driving the water inlet rotating pipe to rotate is arranged at the upper end of the circulating water tank, a plurality of transverse pipes are uniformly communicated with the water inlet rotating pipe and are close to the upper end of the water inlet rotating pipe, a plurality of water taking vertical pipes are communicated with the transverse pipes, slide rods capable of sliding radially are connected to the transverse pipes, arc-shaped retaining strips are connected to the end portions of the slide rods, abutting springs are connected between the slide rods and the transverse pipes, the arc-shaped retaining strips abut against the inner wall of the circulating water tank, the water taking vertical pipes are connected to the slide rods, the water taking vertical pipes are communicated with the transverse pipes, the opening positions of the lower ends of the water taking vertical pipes are close to the bottom of the circulating water tank, floating bodies are movably sleeved on the water taking vertical pipes, the floating; a plurality of stirring blades are arranged on the outer wall of the water taking vertical pipe.
When circulating water pump work extraction circulating water pond in the circulating water pond, driving motor drives into water the rotating tube and rotates, makes the water intaking standpipe rotate different positions in the circulating water pond, realizes the water intaking to different positions in the circulating water pond. Under the effect of butt spring, arc blend stop butt all the time on circulating water pond inner wall, makes the water intaking standpipe can reach rectangle pond bight position, greatly increased the water intaking scope. The body floats on the surface of water in the circulating water pond, along with the height of water level, the body drives the counter weight ball and reciprocates in the aquatic, makes the water intaking mouth of flexible pipe lower extreme follow together fluctuate, realizes the water intaking that suspends, when the rotating tube that intakes rotates, receives the effect of centrifugal force, and the outside swing of counter weight ball has enlarged the water intaking scope, and the water intaking is more even, is favorable to improving the precision that circulating water sampling detector detected the circulating water to be favorable to adding the medicine more accurately. The water taking vertical pipe stirs the circulating water by the stirring blade in the rotating process of the water taking vertical pipe in the circulating water tank, which is beneficial to improving the uniform and sufficient mixing of the filled medicament and the circulating water, thereby improving the circulating water treatment effect.
As the preferred, violently be equipped with a plurality of slide on the pipe, be equipped with T shape spout on the slide, but slide bar slidable mounting is in T shape spout, and violently the pipe below is arranged in to the slide bar, violently is close to the rotation pipe end that intakes on the pipe and is equipped with the spring holder, and the tip towards the spring holder on the slide bar is equipped with the spring mounting groove, and the butt spring mounting is between spring holder and spring mounting groove. The slide bar slides on the slide seat in the radial direction, and is stable and reliable. The abutting spring is stably and reliably installed.
Preferably, the upper end of the circulating water tank is connected with a mounting frame, a rotating sleeve is arranged on the mounting frame, the upper end of the water inlet rotating pipe is movably sleeved with the rotating sleeve, the upper end of the water inlet rotating pipe is connected with a driven gear, a driving motor is arranged on the mounting frame, an output shaft of the driving motor is connected with a driving gear, and the driving gear is in meshing transmission with the driven gear. The water inlet rotating pipe operates stably and reliably.
Preferably, the upper end of the water taking vertical pipe is connected with the horizontal pipe and is communicated with a U-shaped connecting pipe, one end of the connecting pipe is connected with the water taking vertical pipe, and the other end of the connecting pipe is connected with the horizontal pipe; the upper end of a water taking vertical pipe connected to the slide rod is communicated with a flexible communicating pipe, and the flexible communicating pipe is communicated with a horizontal pipe. The water intaking standpipe installation is steady reliable.
Compared with the prior art, the invention has the beneficial effects that: the full-automatic accurate dosing system of circulating water can accurately control the dosing amount, realizes automatic dosing, is convenient to dose, ensures the treatment effect of the circulating water, is favorable for reducing the cost and improves the working efficiency.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view showing the internal structure of a circulation tank according to embodiment 2 of the present invention;
FIG. 3 is a plan view of a circulation tank according to embodiment 2 of the present invention;
in the figure: 1. a water quality online detection device, 2, a precise dosing cabinet, 3, a controller, 4, a circulating water tank, 5, a circulating water pipe, 6, a circulating water pump, 7, a sewage branch pipe, 8, a sewage electric valve, 9, a water taking pipe, 10, a sampling branch pipe, 11, a sulfuric acid filling device, 12, a non-oxidizing bactericide filling device, 13, an oxidizing bactericide filling device, 14, a corrosion scale inhibitor filling device, 15, a medicament storage tank, 16, a metering pump, 17, an inlet electric valve, 18, an outlet electric valve, 19, a PH value online detector, 20, an ORP online detector, 21, an electric conductivity online detector, 22, and a medicament concentration online detector, 23, a stirrer, 24, a concentrated sulfuric acid storage tank, 25, a sulfuric acid filling electric valve, 26, a standby metering pump, 27, a standby inlet electric valve, 28, a standby outlet electric valve, 29, a circulating water, 30, a circulating water pipe, circulating water flowmeter, 31, water inlet rotating pipe, 32, driving motor, 33, horizontal pipe, 34, water intaking standpipe, 35, slide bar, 36, arc blend stop, 37, butt spring, 38, float, 39, counter weight ball, 40, stirring blade, 41, slide, 42, T-shaped spout, 43, spring holder, 44, spring mounting groove, 45, mounting bracket, 46, swivel cover, 47, driven gear, 48, driving gear, 49, support, 50, mounting hole, 51, bearing, 52, sealing washer, 53, connecting pipe, 54, flexible communicating pipe, 55, flexible pipe.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1: a full-automatic accurate dosing system of circulating water (refer to figure 1), including the transport mechanism of circulating water, water quality on-line detection device 1, accurate dosing cabinet 2, control device 3, the transport mechanism of circulating water includes circulating water pool 4, circulating water pipe 5, circulating water pump 6, connect the blow-off branch pipe 7 on the circulating water pipe, install the blow-off motorised valve 8 on the blow-off branch pipe, one end of circulating water pipe connects the circulating water pump outlet, another end communicates the upper portion position of circulating water pool, the circulating water pump water inlet connects the intake pipe 9, the intake pipe communicates the lower portion position of circulating water pool, connect the sampling branch pipe 10 on the circulating water pipe, the water quality on-line detection device is installed on sampling; a sulfuric acid filling device 11, a non-oxidizing bactericide filling device 12, an oxidizing bactericide filling device 13 and a corrosion scale inhibitor filling device 14 are installed in the precise dosing cabinet, the sulfuric acid filling device, the non-oxidizing bactericide filling device, the oxidizing bactericide filling device and the corrosion scale inhibitor filling device respectively comprise a medicament storage tank 15, a metering pump 16, an inlet electric valve 17 and an outlet electric valve 18, the metering pump is communicated between a circulating water pipe and the medicament storage tank, the inlet electric valve is installed on the inlet side of the metering pump, and the outlet electric valve is installed on the outlet side of the metering pump; and the controller controls the opening and closing of the metering pump, the inlet electric valve and the outlet electric valve according to the read detection data of the water quality online detection device. The controller is a PLC controller, and all the electric valves and the liquid level meters are electrically connected with the controller.
The water quality online detection device comprises a PH value online detector 19, an ORP online detector 20, a conductivity online detector 21 and a medicament concentration online detector 22. A stirrer 23 for stirring the liquid in the chemical storage tank is installed in the chemical storage tank of the sulfuric acid filling device. The medicament storage tank of the sulfuric acid filling device is communicated with a concentrated sulfuric acid storage tank 24 through a conveying pipe, a sulfuric acid filling electric valve 25 is installed on the conveying pipe, and a liquid level meter and a water supplementing electric valve are installed on the medicament storage tank of the sulfuric acid filling device. Each metering pump is connected with a standby metering pump 26 in parallel, and a standby inlet electric valve 27 and a standby outlet electric valve 28 are respectively arranged on the inlet side and the outlet side of the standby metering pump. And a circulating water electric valve 29 and a circulating water flowmeter 30 are arranged on the circulating water pipe, and a radar liquid level meter and a water replenishing electric valve are arranged on the circulating water pool. And the circulating water flow meter is used for detecting the flow of circulating water and providing a calculation basis for the medicament filling amount and the metering pump flow. The radar level gauge is used for detecting the liquid level of the circulating water pool and providing a basis for the addition amount of the medicament. The water replenishing electric valve replenishes water for the circulating water system. The medicament storage tank of the oxidizing bactericide filling device is filled with the oxidizing bactericide; the non-oxidizing bactericide is filled in a medicament storage tank of the non-oxidizing bactericide filling device; a corrosion and scale inhibitor is filled in a medicament storage tank of the corrosion and scale inhibitor filling device; the agent storage tank of the sulfuric acid filling device is filled with dilute sulfuric acid, and the concentrated sulfuric acid storage tank is filled with concentrated sulfuric acid.
Circulating water in the circulating water tank is conveyed into the circulating water pipe under the action of the circulating water pump and finally returns to the circulating water tank, the water quality online detection device performs sampling detection on the water quality of the circulating water flowing from the circulating water pipe into the sampling branch pipe, and the controller controls the metering pump, the inlet electric valve and the outlet electric valve to be opened and closed according to detection data of the water quality online detection device. When the water quality on-line detection device detects that the PH value of the circulating water is greater than a set value of 8.8, the controller compares the detected PH value with the set PH value, and then calculates the amount of sulfuric acid to be added by combining the total water amount in the circulating water tank, starts a metering pump, an inlet electric valve and an outlet electric valve of the sulfuric acid filling device, calculates the flow, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow reaches the amount of the sulfuric acid to be filled, so that the filling of the sulfuric acid is completed. And calculating the time required by one water circulation of the circulating water pool according to the circulating water flow meter, wherein the starting time of the metering pump is consistent with the time, so that the medicament is conveniently and fully mixed with the circulating water. Similarly, when the online water quality detection device detects that the concentration of the circulating water corrosion scale inhibitor is lower than a set value of 30mg/L, the controller compares the detected concentration with the set concentration, and then calculates the amount of the corrosion scale inhibitor to be added by combining the total water amount in the circulating water tank, starts a metering pump, an inlet electric valve and an outlet electric valve of the corrosion scale inhibitor filling device, calculates the flow, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow reaches the amount of the corrosion scale inhibitor to be filled, so that the filling of the corrosion scale inhibitor is completed. And calculating the time required by one water circulation of the circulating water pool according to the circulating water flow meter, wherein the starting time of the metering pump is consistent with the time, so that the medicament is conveniently and fully mixed with the circulating water.
When the time interval between the filling of the oxidizing bactericide is more than 15 days from the last filling, the controller calculates the amount of the oxidizing bactericide to be filled when the circulating water reaches the set concentration of the oxidizing bactericide according to the total water amount in the circulating water tank, opens the metering pump, the inlet electric valve and the outlet electric valve of the oxidizing bactericide filling device, calculates the flow, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow reaches the amount of the oxidizing bactericide to be filled, thereby completing the filling of the oxidizing bactericide. And calculating the time required by one water circulation of the circulating water pool according to the circulating water flow meter, wherein the starting time of the metering pump is consistent with the time, so that the medicament is conveniently and fully mixed with the circulating water. Similarly, when the time interval between the non-oxidizing bactericide filling and the last filling exceeds 90 days, the controller calculates the amount of the non-oxidizing bactericide to be filled when the circulating water reaches the set concentration of the non-oxidizing bactericide according to the total water amount in the circulating water tank, starts the metering pump, the inlet electric valve and the outlet electric valve of the non-oxidizing bactericide filling device, calculates the flow rate, and closes the metering pump, the inlet electric valve and the outlet electric valve when the flow rate reaches the amount of the non-oxidizing bactericide to be filled, so that the filling of the non-oxidizing bactericide is completed. And calculating the time required by one water circulation of the circulating water pool according to the circulating water flow meter, wherein the starting time of the metering pump is consistent with the time, so that the medicament is conveniently and fully mixed with the circulating water.
When the water quality online detection device detects that the conductivity of the circulating water is greater than a set value 5000, the controller compares the detected concentration with the standard of the conductivity of the circulating water, and calculates the amount of the circulating water to be discharged by combining the total water amount in the circulating water tank, and calculates whether the discharged water is lower than the minimum limit, if so, water is supplemented, and the water is supplemented until the water level of the circulating water tank is on line and stopped; if not, opening the blowdown electrically operated valve according to the calculated blowdown amount to blowdown, supplementing water after the blowdown is finished, and stopping the water supplementing on-line to the liquid level of the circulating water tank.
The filled medicament returns to the circulating water tank along with the circulating water, and the medicament and the circulating water in the circulating water tank are uniformly and fully contacted to carry out water quality treatment on the circulating water. After dosing is finished, the water quality online detection device carries out water quality detection on the circulating water again, the controller judges whether the water quality reaches the standard according to the read data, dosing is continuously carried out when the water quality does not reach the standard until the water quality reaches the standard, and dynamic dosing is realized. The full-automatic accurate dosing system for the circulating water can accurately control the dosing amount, realize automatic dosing, is convenient to operate, ensures the treatment effect of the circulating water, is favorable for reducing the cost and improves the working efficiency.
Example 2: a full-automatic accurate dosing system for circulating water (see attached figure 2 and attached figure 3) is similar to that of embodiment 1, and mainly comprises a rotatable water inlet rotating pipe 31 arranged in a circulating water pond in the embodiment, the water inlet rotating pipe is communicated with a water taking pipe, a driving motor 32 for driving the water inlet rotating pipe to rotate is arranged at the upper end of the circulating water pond, a plurality of transverse pipes 33 are uniformly distributed and communicated on the water inlet rotating pipe near the upper end, a plurality of water taking vertical pipes 34 are communicated on the transverse pipes, sliding rods 35 capable of sliding radially are connected on the transverse pipes, arc-shaped barrier strips 36 are connected at the end parts of the sliding rods, abutting springs 37 are connected between the sliding rods and the transverse pipes, the arc-shaped barrier strips abut against the inner wall of the circulating water pond, the plurality of water taking vertical pipes are connected on the sliding rods, the water taking vertical pipes are communicated with the transverse pipes, the opening position of, the floating body is fixedly connected with a flexible pipe 55, the upper end of the flexible pipe is communicated with the water taking vertical pipe, the lower end of the flexible pipe is opened and is connected with a counterweight ball 39, and the counterweight ball floats up and down along with the floating body to move up and down; a plurality of stirring blades 40 are arranged on the outer wall of the water taking vertical pipe.
Be equipped with a plurality of slide 41 on violently managing, be equipped with T shape spout 42 on the slide, but slide bar slidable mounting is in T shape spout, and violently the pipe below is arranged in to the slide bar, violently is equipped with spring holder 43 near the rotation pipe end of intaking on the pipe, and the tip towards the spring holder on the slide bar is equipped with spring mounting groove 44, and the butt spring mounting is between spring holder and spring mounting groove. The upper end of the circulating water tank is connected with a mounting rack 45, a rotating sleeve 46 is arranged on the mounting rack, the upper end of a water inlet rotating pipe is movably sleeved with the rotating sleeve, a driven gear 47 is connected with the upper end of the water inlet rotating pipe, a driving motor is arranged on the mounting rack, an output shaft of the driving motor is connected with a driving gear 48, and the driving gear is in meshing transmission with the driven gear. The bottom surface of the circulating water tank is provided with a support 49, the support is provided with a mounting hole 50, the water taking pipe is communicated with the mounting hole, the lower end of the water inlet rotating pipe is rotatably arranged in the mounting hole, and a bearing 51 and a plurality of sealing rings 52 are arranged between the outer wall of the water inlet rotating pipe and the inner wall of the mounting hole.
The upper end of the water taking vertical pipe connected with the transverse pipe is communicated with a U-shaped connecting pipe 53, one end of the connecting pipe is connected with the water taking vertical pipe, and the other end of the connecting pipe is connected with the transverse pipe; the upper end of the water taking vertical pipe connected to the slide rod is communicated with a flexible communicating pipe 54 which is communicated with the horizontal pipe. The other structure is the same as embodiment 1.
When circulating water pump work extraction circulating water pond in the circulating water pond, driving motor drives into water the rotating tube and rotates, makes the water intaking standpipe rotate different positions in the circulating water pond, realizes the water intaking to different positions in the circulating water pond. Under the effect of butt spring, arc blend stop butt all the time on circulating water pond inner wall, makes the water intaking standpipe can reach rectangle pond bight position, greatly increased the water intaking scope. The body floats on the surface of water in the circulating water pond, along with the height of water level, the body drives the counter weight ball and reciprocates in the aquatic, makes the water intaking mouth of flexible pipe lower extreme follow together fluctuate, realizes the water intaking that suspends, when the rotating tube that intakes rotates, receives the effect of centrifugal force, and the outside swing of counter weight ball has enlarged the water intaking scope, and the water intaking is more even, is favorable to improving the precision that circulating water sampling detector detected the circulating water to be favorable to adding the medicine more accurately. The water taking vertical pipe stirs the circulating water by the stirring blade in the rotating process of the water taking vertical pipe in the circulating water tank, which is beneficial to improving the uniform and sufficient mixing of the filled medicament and the circulating water, thereby improving the circulating water treatment effect.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the invention as set forth in the appended claims.
Claims (8)
1. A full-automatic accurate dosing system for circulating water is characterized by comprising a circulating water conveying mechanism, a water quality online detection device, an accurate dosing cabinet and a controller, wherein the circulating water conveying mechanism comprises a circulating water tank, a circulating water pipe and a circulating water pump, the circulating water pipe is communicated with a sewage discharge branch pipe, a sewage discharge electric valve is installed on the sewage discharge branch pipe, one end of the circulating water pipe is connected with an outlet of the circulating water pump, the other end of the circulating water pipe is communicated with the upper part of the circulating water tank, a water inlet of the circulating water pump is connected with a water taking pipe, the water taking pipe is communicated with the lower part of the circulating water tank, the; a sulfuric acid filling device, a non-oxidizing bactericide filling device, an oxidizing bactericide filling device and a corrosion scale inhibitor filling device are arranged in the precise bactericide filling cabinet, the sulfuric acid filling device, the non-oxidizing bactericide filling device, the oxidizing bactericide filling device and the corrosion scale inhibitor filling device respectively comprise a medicament storage tank, a metering pump, an inlet electric valve and an outlet electric valve, the metering pump is communicated between the circulating water pipe and the medicament storage tank, the inlet electric valve is arranged on the inlet side of the metering pump, and the outlet electric valve is arranged on the outlet side of the metering pump; the controller controls the opening and closing of the metering pump, the inlet electric valve and the outlet electric valve according to the read detection data of the water quality online detection device; the water intake rotary pipe is rotatably arranged in the circulating water pool, the water intake rotary pipe is communicated with the water intake pipe, a driving motor for driving the water intake rotary pipe to rotate is arranged at the upper end of the circulating water pool, a plurality of transverse pipes are uniformly communicated at positions close to the upper end of the water intake rotary pipe, a plurality of water intake vertical pipes are communicated with the transverse pipes, sliding rods capable of sliding radially are connected with the transverse pipes, arc-shaped barrier strips are connected with the end parts of the sliding rods, abutting springs are connected between the sliding rods and the transverse pipes, the arc-shaped barrier strips are abutted against the inner wall of the circulating water pool, the water intake vertical pipes are connected with the sliding rods, the water intake vertical pipes are communicated with the transverse pipes, the opening positions of the lower ends of the water intake vertical pipes are close to the bottom of the circulating water pool, floating bodies are movably sleeved on the water intake vertical pipes, the floating bodies float on the; a plurality of stirring blades are arranged on the outer wall of the water taking vertical pipe.
2. The full-automatic accurate dosing system of circulating water of claim 1, wherein the water quality on-line detection device comprises a pH value on-line detector, an ORP on-line detector, a conductivity on-line detector and a medicament concentration on-line detector.
3. The full-automatic precise dosing system for the circulating water as claimed in claim 1, wherein a stirrer for stirring liquid in the chemical storage tank is installed in the chemical storage tank of the sulfuric acid filling device.
4. The full-automatic precise dosing system for the circulating water as claimed in claim 1, wherein a chemical storage tank of the sulfuric acid filling device is communicated with a concentrated sulfuric acid storage tank through a delivery pipe, a sulfuric acid filling electric valve is installed on the delivery pipe, and a liquid level meter and a water replenishing electric valve are installed on the chemical storage tank of the sulfuric acid filling device.
5. The full-automatic precise dosing system for circulating water as claimed in claim 1, wherein each metering pump is connected in parallel with a spare metering pump, and a spare inlet electric valve and a spare outlet electric valve are respectively installed on an inlet side and an outlet side of the spare metering pump.
6. The full-automatic precise circulating water dosing system according to claim 1, wherein the transverse pipe is provided with a plurality of sliding seats, the sliding seats are provided with T-shaped sliding grooves, the sliding rods are slidably mounted in the T-shaped sliding grooves, the sliding rods are arranged below the transverse pipe, the transverse pipe is provided with a spring seat close to the end of the water inlet rotating pipe, the sliding rods are provided with spring mounting grooves at the ends facing the spring seats, and the abutting springs are mounted between the spring seats and the spring mounting grooves.
7. The full-automatic precise circulating water dosing system according to claim 1, wherein the upper end of the circulating water tank is connected with a mounting frame, a rotating sleeve is arranged on the mounting frame, the upper end of the water inlet rotating pipe is movably sleeved with the rotating sleeve, the upper end of the water inlet rotating pipe is connected with a driven gear, a driving motor is arranged on the mounting frame, an output shaft of the driving motor is connected with a driving gear, and the driving gear is in meshing transmission with the driven gear.
8. The full-automatic precise dosing system for the circulating water as claimed in claim 1, wherein a U-shaped connecting pipe is communicated with the upper end of a water taking vertical pipe connected with a transverse pipe, one end of the connecting pipe is connected with the water taking vertical pipe, and the other end of the connecting pipe is connected with the transverse pipe; the upper end of a water taking vertical pipe connected to the slide rod is communicated with a flexible communicating pipe, and the flexible communicating pipe is communicated with a horizontal pipe.
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| CN110713265A (en) * | 2019-11-18 | 2020-01-21 | 中国大唐集团科学技术研究院有限公司西北电力试验研究院 | Automatic dosing water-saving treatment system and method for absorption heat pump waste heat water |
| CN111623896B (en) * | 2020-05-24 | 2021-11-16 | 西安交通大学 | Supercritical water on-line flow testing device |
| CN114538659B (en) * | 2022-02-28 | 2023-04-07 | 深圳市中电加美电力技术有限公司 | Circulating water quality control treatment method and system |
| CN118533264B (en) * | 2024-07-26 | 2024-09-20 | 四川精智仪表科技有限公司 | Water works cistern liquid level monitor and water supply monitoring system |
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