CN115893539A - Liquid medicine adding system capable of improving medicine effect and provided with emergency liquid supplementing device - Google Patents

Abstract

The invention belongs to the technical field of water treatment, and particularly relates to a liquid medicine adding system which can improve the medicine effect and is provided with an emergency liquid supplementing device. The system comprises an online diluting device, a mother liquor box, an emergency mother liquor pipe and a controller, wherein a mother liquor box liquid outlet pipe is arranged at an outlet of the mother liquor box, and the mother liquor pipe is respectively communicated with a mother liquor inlet pipe and the emergency mother liquor pipe. Be provided with mother liquor feed liquor flow valve and mother liquor feed liquor flowmeter on the mother liquor feed liquor pipe, emergent mother liquor pipe is provided with emergent mother liquor flow valve and second normally open solenoid valve, mother liquor feed liquor flowmeter with the input electric connection of controller, mother liquor feed liquor flow valve with emergent mother liquor flow valve with the output electric connection of controller. The method is used for the rapid adding of the flocculant in water treatment after dilution and the emergency liquid medicine adding process after the medicine is cut off.

Description

Liquid medicine adding system capable of improving medicine effect and provided with emergency liquid supplementing device

Technical Field

The invention belongs to the technical field of water treatment, and particularly relates to a liquid medicine adding system which can improve the medicine effect and is provided with an emergency liquid supplementing device.

Background

Water treatment refers to a process of purifying wastewater or domestic water by physical or chemical means. Wherein, the addition of liquid medicine (such as flocculating agent and the like) is an important part in chemical treatment.

The liquid medicine adding in the water treatment process is already automatic. The process comprises the steps that ton bags filled with the medicament are unpacked in a unpacking machine and then conveyed into a storage bin, after the ton bags are measured by an accurate measuring device, the ton bags and water are mixed and dissolved into high-concentration mother liquor, and the high-concentration mother liquor enters a mother liquor tank to be stored or is conveyed to an inlet of a water treatment pool to be diluted on line and then is added. In the process, equipment such as an electromagnetic valve, a flowmeter and the like involved in the processes of hoisting and unpacking ton bags, conveying medicaments in a storage bin, accurately metering and conveying mother liquor and dilution water need to be operated by electric power.

In the water treatment process, because the distance between the dosing points and the dosing distance is far away, the diameter of the conveying pipeline is large, the liquid medicine is usually conveyed to the dosing points after the liquid medicine is diluted, sometimes, the dosing amount is small, the liquid medicine needs to reach 30 minutes, and even flows to the dosing points for as much as one hour, so that the drug effect of the medicine is reduced due to hydrolysis.

In addition, the liquid medicine must be added continuously. When unexpected conditions such as equipment failure or power failure occur, the automatic feeding interruption of the liquid medicine can cause the whole water treatment process to stop, and the production efficiency is influenced. Aiming at the emergency treatment of liquid medicine adding interruption, in the prior art, a plastic barrel is usually placed on a water treatment tank, a certain amount of liquid medicine is stored in the barrel, and when the liquid medicine adding is interrupted accidentally, the liquid medicine in the barrel can be added into the water treatment tank manually.

The current emergency treatment method has two problems: firstly, the concentration or the addition amount of the liquid medicine generally needs to be temporarily adjusted according to the properties such as turbidity of raw water, and when the liquid medicine stored in the barrel is added in an emergency manner, the accurate concentration and the addition amount of the liquid medicine cannot be ensured, so that the water treatment effect is reduced; secondly, the liquid medicine is stored in the barrel for a long time, and the hydrolysis and other reactions are easy to occur, so that the effective chemical components in the liquid medicine are lost, the accuracy of the medicine adding amount is further influenced, and the water treatment effect is reduced.

Disclosure of Invention

Aiming at the defects that a dosing point is far away from a dosing interval and the emergency treatment method is used when the automatic dosing of liquid medicine is interrupted in the prior art, the invention provides a method for arranging a mother liquid box at a position close to the dosing point, diluting the liquid medicine nearby, using the mother liquid box as a liquid medicine source of an emergency liquid supplementing device, and providing emergency supplement liquid medicine when the liquid medicine is interrupted.

The utility model provides a can improve drug effect and have liquid medicine dosing system of emergent fluid infusion device, is including being used for setting up near the mother liquor case, online diluting device and the controller of the point of dosing in water treatment pond, the mother liquor case pass through mother liquor feed pipe and be connected with online diluting device front end, online diluting device front end still is provided with the dilution water inlet tube, online diluting device rear end is provided with the dilution liquid dosing pipe that is arranged in adding the medicine to the water treatment pond, online diluting device passes through electric connection with the controller.

Preferably, still including emergent mother liquor pipe, the mother liquor case is connected with emergent mother liquor pipe through mother liquor pipe, is connected with emergent mother liquor flow valve and second normally open solenoid valve on the emergent mother liquor pipe, connects emergent cartridge administration pipe behind the second normally open solenoid valve.

Preferably, the emergency water replenishing system further comprises an emergency water replenishing tank, an emergency water pipe and an emergency dilution device, wherein a water replenishing tank liquid outlet pipe is arranged at the outlet of the emergency water replenishing tank and is respectively communicated with the dilution water inlet pipe and the emergency water pipe;

a dilution water flow control device is arranged on the dilution water inlet pipe, an emergency water pipe is provided with an emergency water flow valve and a third normally open electromagnetic valve, the dilution water flow control device is electrically connected with the controller, and the emergency water flow valve is electrically connected with the output end of the controller;

the rear end of emergent mother liquor pipe with the rear end of emergent water pipe with emergent diluting device connects, emergent diluting device rear end is provided with and is used for throwing the pencil to the emergent of adding medicine in the water treatment pond.

Preferably, an outlet of the emergency water replenishing tank is arranged at the bottom of the emergency water replenishing tank, an air inlet pipeline is arranged at the top of the emergency water replenishing tank, and a fourth normally-open electromagnetic valve is arranged on the air inlet pipeline;

and/or at least one shut-off valve is arranged on the dilution water inlet pipe;

and/or, a water inlet standby bypass is arranged on the dilution water inlet pipe in parallel, and at least one shutoff valve is arranged on the water inlet standby bypass;

and/or the dilution water flow control device comprises a dilution water flow valve and a dilution water flow meter, the dilution water flow meter is electrically connected with the input end of the controller, the dilution water flow valve is electrically connected with the output end of the controller, and preferably, the pipe diameters of the dilution water inlet pipe and the emergency water pipe are the same; or, the dilution water flow control device is a metering pump, and the metering pump is electrically connected with the output end of the controller.

Preferably, the mother liquor flow control device comprises a mother liquor inlet flow valve and a mother liquor inlet flow meter, the mother liquor inlet flow meter is electrically connected with the input end of the controller, and the mother liquor inlet flow valve is electrically connected with the output end of the controller; preferably, the mother liquor inlet pipe and the emergency mother liquor pipe are the same in pipe diameter.

Or, the mother liquor flow control device is a metering pump, and the metering pump is electrically connected with the output end of the controller.

Preferably, the rear end of the emergency mother liquor pipe is connected with an emergency dosing pipe for dosing into the water treatment pool;

or, the online diluting device comprises a first mixer, the rear end of the first mixer is communicated with the diluent feeding pipe, and the rear end of the emergency mother liquor pipe is communicated with the first mixer.

Preferably, the outlet of the mother liquor tank is arranged at the bottom of the mother liquor tank, the top of the mother liquor tank is provided with an air inlet pipeline, and the air inlet pipeline is provided with a first normally open electromagnetic valve.

Preferably, at least one shut-off valve is arranged on the mother liquor inlet pipe;

and/or a mother liquid standby bypass is arranged on the mother liquid inlet pipe in parallel, and at least one shutoff valve is arranged on the mother liquid standby bypass.

Preferably, still include mother liquor feeding device, mother liquor feeding device's exit is provided with mother liquor and carries the main pipe, the entrance of mother liquor case is provided with fluid infusion case feed liquor pipe, mother liquor carries main pipe and fluid infusion case feed liquor pipe intercommunication.

Preferably, the mother liquor supply device is a mother liquor tank;

or the mother liquor supply device is a mother liquor quantitative dispensing system which comprises a mixing and dissolving device, the inlet of the mixing and dissolving device is connected with a medicament metering device and a liquid preparation water inlet pipe, and the outlet of the mixing and dissolving device is connected with a mother liquor conveying main pipe;

preferably, be provided with on the liquid preparation water inlet tube and join in marriage liquid water flow valve and join in marriage liquid water flowmeter, join in marriage liquid water flowmeter with the input electric connection of controller, join in marriage liquid water flow valve with the output electric connection of controller.

Preferably, the rear end of the mother liquor conveying main pipe is connected with at least two liquor supplementing box liquor inlet pipes, the rear end of each liquor supplementing box liquor inlet pipe is sequentially provided with a mother liquor box, a mother liquor pipe, an online diluting device and a diluent feeding pipe, and the rear end of each mother liquor pipe is connected with an emergency mother liquor pipe.

The invention also provides a liquid medicine adding method capable of realizing emergency liquid supplement by using the system, which comprises the following steps:

(1) Preparing a mother solution;

(2) Inputting the mother liquor into a mother liquor box;

(3) Inputting mother liquor from a mother liquor tank into an online diluting device and an emergency dosing device, and adjusting the opening of a flow valve to maintain the same flow of the mother liquor allowed to pass through the online diluting device and the emergency dosing device in real time, wherein the emergency dosing device is cut off or communicated through a normally open electromagnetic valve;

(4) Under the condition of non-emergency dosing, the normally open electromagnetic valve is powered on and closed, and the addition of the liquid medicine is completed after the mother liquid is diluted by the online diluting device;

and under the condition of emergency medicine adding, the normally open electromagnetic valve is opened in a power-off mode, and the liquid medicine adding is completed through the emergency medicine adding device.

Preferably, the outlet of the mother liquor tank is arranged at the bottom of the mother liquor tank, the top of the mother liquor tank is provided with an air inlet pipeline, and the air inlet pipeline is provided with a normally open electromagnetic valve.

Preferably, in the step (4), the added liquid medicine is mother liquor or diluted mother liquor under the condition of emergency medicine adding.

Preferably, in the step (4), the addition process of the dilution water comprises the following steps:

(a) Inputting the dilution water into an emergency water replenishing tank;

(b) Inputting the dilution water into an online dilution device and an emergency dosing device from an emergency water supplementing tank, and maintaining the same flow of the dilution water allowed to pass through the online dilution device and the emergency dosing device in real time through the adjustment of the opening degree of a flow valve, wherein the emergency dosing device is cut off or communicated through a normally open electromagnetic valve;

(c) Under the condition of non-emergency dosing, the normally open electromagnetic valve is powered on and closed, and the addition of the liquid medicine is completed after the mother liquid is diluted by the online diluting device;

and under the condition of emergency dosing, the normally open electromagnetic valve is opened in a power-off mode, and the dosing of the liquid medicine is completed after the mother liquid is diluted by the emergency dosing device.

The invention also provides a control system for the liquid medicine adding method, which comprises a controller, wherein the input end of the controller is connected with a mother liquid inlet flow meter, and the output end of the controller is connected with a mother liquid inlet flow valve and an emergency mother liquid flow valve;

the mother liquor inlet flowmeter is used for detecting the flow of the mother liquor in the process of diluting the mother liquor;

the mother liquor inlet flow valve is used for adjusting the flow of the mother liquor in the mother liquor dilution process;

the emergency mother liquor flow valve is used for adjusting the flow of mother liquor in the emergency addition process of the liquid medicine;

the controller synchronously adjusts the openness of the mother liquor inlet flow valve and the emergency mother liquor flow valve according to the input signal of the mother liquor inlet flow meter.

Preferably, the input end of the controller is connected with a dilution water flow meter, and the output end of the controller is connected with a dilution water flow valve and an emergency water flow valve;

the dilution water flow meter is used for detecting the flow of dilution water in the mother liquor dilution process;

the flow valve of the dilution water is used for adjusting the flow of the dilution water in the process of diluting the mother liquor;

the emergency water flow valve is used for adjusting the flow of the dilution water in the emergency addition process of the liquid medicine;

and the controller synchronously adjusts the opening degrees of the dilution water flow valve and the emergency water flow valve according to the input signal of the dilution water flow meter.

Preferably, the input end of the controller is connected with a liquid preparation water flow meter, and the output end of the controller is connected with a liquid preparation water flow valve and a medicament metering device;

the liquid preparation water flow meter is used for detecting the flow of liquid preparation water in the mother liquid preparation process;

the liquid preparation water flow valve is used for adjusting the flow of liquid preparation water in the mother liquid preparation process;

the medicament metering device is used for adjusting the addition amount of the medicament in the mother liquor preparation process;

and the controller adjusts the opening of the liquid-dispensing water flow valve according to the input signal of the liquid-dispensing water flow meter.

Preferably, the input end of the controller is connected with a process parameter input device, and the process parameter input device is used for inputting at least one of raw water turbidity, mother liquor concentration, mother liquor flow or dilution water flow.

Preferably, the process parameter input device is at least one of a touch screen, an input button, a mouse or a raw water turbidity detection device.

Preferably, the output end of the controller is further connected with a power module;

the power module is used for cutting off or connecting the power supply of at least one normally open electromagnetic valve;

the normally open solenoid valve is used for cutting off or opening a pipeline for adding liquid medicine in an emergency.

The invention provides a liquid medicine adding system which can improve the medicine effect and is provided with an emergency liquid supplementing device, and the liquid medicine adding system has the following beneficial effects:

1. shortens the distance from the diluted liquid medicine to the adding point, effectively prevents the decrease of the medicine effect caused by hydrolysis caused by over-long time delivery to the adding point when the medicine adding amount is low,

2. in the liquid medicine adding system, the mother liquid box and the emergency mother liquid pipe are used for carrying out emergency medicine adding, under the normal working condition, the emergency mother liquid pipe is cut off through the normally open electromagnetic valve, and meanwhile, an emergency mother liquid flow valve on the emergency mother liquid pipe is controlled through the controller, so that the opening degree of the emergency mother liquid flow valve is the same as that of a mother liquid flow valve on a pipeline for normally adding medicine. Under the circumstances such as unexpected outage appears or normal medicine pipeline needs maintenance, normally open solenoid valve opens, and size when the outage was maintained to emergent mother liquor flow valve's aperture, and at this moment, emergent mother liquor pipe can be with the flow when the outage to rear end technology with throw mother liquor. The process can ensure that the adding speed of the medicament (namely the adding flow of the mother liquor) is consistent with the power-off time in the process of adding the liquid medicament in an emergency, so that the water treatment effect in the process of adding the liquid medicament in the emergency is consistent with the power-off time, and the problem that the emergency adding is uncontrollable in the prior art is solved.

2. According to the knowledge in the prior art, the change such as hydrolysis is more easily caused when the time of the diluent is too long compared with the time of the mother liquor with high concentration. In the technical scheme of the invention, the liquid medicine for emergency feeding is stored in the mother liquid tank in the form of mother liquid, and is diluted before being added into a water treatment tank during normal feeding. When the emergency medicine adding is carried out, according to different optimal schemes of the emergency medicine adding device, the mother liquor can be directly added into the water treatment tank or diluted and then added into the water treatment tank. The emergency medicine adding mode solves the problem that the liquid medicine for emergency is easy to hydrolyze and deteriorate after being stored for a long time.

3. In the preferred scheme, mother liquor case and emergent moisturizing case need not electric power and can automatic work under the circumstances of outage, and the mother liquor or the dilution water of storing are discharged through the action of gravity.

4. In the preferred scheme, a mother liquor standby bypass and a water inlet standby bypass are arranged, and the mother liquor standby bypass and the water inlet standby bypass can be used as a standby dosing pipeline or a pipeline for an emptying system when equipment is overhauled.

5. In the preferred scheme, the mother liquor supply device can be set as a simple mother liquor tank, and also can be set as a mother liquor quantitative dispensing system for automatically dispensing the mother liquor, so that the automation degree of the system is improved.

6. In the preferred scheme, the rear end of the mother liquor conveying main pipe can be connected with a plurality of branches, and each branch can add medicines to different water treatment pools so as to adapt to water plants with different water treatment scales.

The liquid medicine adding method capable of supplementing liquid emergently provided by the invention has the following beneficial effects:

1. according to the liquid medicine adding method, emergency medicine adding is carried out through the mother liquid box for standby medicine adding and the emergency mother liquid pipe, under the normal working condition, the emergency mother liquid pipe is cut off through the normally open electromagnetic valve, and meanwhile, the emergency mother liquid flow valve on the emergency mother liquid pipe is controlled through the controller, so that the opening degree of the emergency mother liquid flow valve is the same as that of the mother liquid flow valve on a pipeline for normal medicine adding. Under the circumstances such as unexpected outage appears or normal medicine pipeline needs maintenance, normally open solenoid valve opens, and size when the outage is maintained to emergent mother liquor flow valve's aperture, and at this moment, emergent mother liquor pipe can be with the flow when the outage to rear end technology throw mother liquor. The process can ensure that the adding speed of the medicament (namely the adding flow of the mother liquor) is consistent with the power-off time in the process of adding the liquid medicament in an emergency, so that the water treatment effect in the process of adding the liquid medicament in the emergency is consistent with the power-off time, and the problem that the emergency adding is uncontrollable in the prior art is solved.

2. It is known from the knowledge of the prior art that the dilution liquid is more susceptible to changes such as hydrolysis than the high concentration mother liquor. In the technical scheme of the invention, the liquid medicine for quick feeding is stored in a mother liquid tank in a mother liquid form, and is diluted before being added into a water treatment tank during normal feeding. When the emergency medicine adding is carried out, according to different optimal schemes of the emergency medicine adding device, the mother liquor can be directly added into the water treatment tank or diluted and then added into the water treatment tank. The emergency medicine adding mode solves the problem that the liquid medicine for emergency is easy to hydrolyze and deteriorate after being stored for a long time.

3. In the preferred scheme, mother liquor case and emergent moisturizing case need not electric power and can automatic work under the circumstances of outage, and the mother liquor or the dilution water of storing are discharged through the action of gravity.

The control system for the liquid medicine adding method provided by the invention has the following beneficial effects:

1. the control system can control the flow of the mother liquor according to the process requirements, so as to control the adding speed of the medicament, thereby ensuring the effect of water treatment. Meanwhile, the adding speed of the medicament can be ensured to be consistent with the power-off time under the working condition of emergency adding, so that the effect of water treatment in the emergency adding process is ensured to be consistent with that under the normal working condition.

2. In a preferable scheme, the control system can realize the control of the flow of the dilution water according to the process requirements, so as to control the concentration of the added liquid medicine, thereby ensuring the effect of water treatment. Meanwhile, the flow of the dilution water is consistent with the power-off time under the working condition of emergency feeding, so that the effect of water treatment in the emergency feeding process is consistent with that under the normal working condition.

3. In a preferred scheme, the control system can automatically prepare the mother liquor with the concentration required by the process.

4. In a preferable scheme, the process parameters such as mother liquor concentration, diluent adding speed and the like required in the method can be manually input; or the turbidity of raw water can be detected, and then the technological parameters such as the mother liquor concentration, the diluent adding speed and the like required by the process can be automatically converted according to the requirements of the water treatment process in the prior art.

5. The basic working mode of the method is that when the power is off, all the electric equipment (such as a shutoff valve, a flow valve and a flowmeter) is automatically closed, and a normally open electromagnetic valve is automatically opened when the power is off, so that the emergency medicine adding is realized. In the preferred scheme, another working mode is added, and the power module capable of controlling the power supply of the normally open electromagnetic valve is arranged, so that the normally open electromagnetic valve is manually controlled to be opened under the non-power-off emergency condition (such as equipment failure).

Obviously, many modifications, substitutions, and variations are possible in light of the above teachings of the invention, without departing from the basic technical spirit of the invention, as defined by the following claims.

The present invention will be described in further detail with reference to the following examples. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention.

Drawings

FIG. 1 is a schematic diagram of the system configuration of embodiment 1 of the present invention;

FIG. 2 is a partial structural view of a system according to embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of the system configuration of embodiment 2 of the present invention;

FIG. 4 is a partial configuration diagram of a system according to embodiment 2 of the present invention;

FIG. 5 is a partial configuration diagram of a system according to embodiment 3 of the present invention;

FIG. 6 is a schematic diagram showing the system configuration in embodiment 4 of the present invention;

FIG. 7 is a schematic view of the constitution of a mother liquor feeding apparatus in the system according to embodiment 4 of the present invention;

FIG. 8 is a schematic view of the structure of a mother liquor feeding apparatus in the system according to embodiment 5 of the present invention;

fig. 9 is a schematic connection diagram of a control system according to embodiment 6 of the present invention.

Wherein:

1-liquid feeding pipe of liquid supplementing tank;

2-mother liquor box, 201-first normally open solenoid valve;

3-a mother liquor pipe;

4-a liquid outlet pipe of the water replenishing tank;

5-online dilution device, 501-mother liquor inlet pipe, 5011-first shutoff valve, 5012-mother liquor inlet flow valve, 5013-mother liquor inlet flow meter, 5014-second shutoff valve, 502-mother liquor standby bypass, 5021-third shutoff valve, 503-dilution water inlet pipe, 5031-fourth shutoff valve, 5032-dilution water flow valve, 5033-dilution water flow meter, 5034-fifth shutoff valve, 504-inlet water standby bypass, 5041-sixth shutoff valve, 505-first mixer;

6-diluent feeding tube;

7-an emergency mother liquor pipe, 701-an emergency mother liquor flow valve, 702-a second normally open electromagnetic valve;

8-emergency water pipe, 801-emergency water flow valve, 802-third normally open solenoid valve;

9-emergency dilution device, 901-second mixer;

10-emergency medicine feeding pipe;

11-an emergency water replenishing tank, 1101-a fourth normally open electromagnetic valve;

12-a liquid inlet pipe of a water replenishing tank;

13-mother liquor conveying main pipe;

14-mother liquor supply device, 1401-mother liquor tank, 1402-package opening device, 1403-storage bin, 1404-air injection device, 1405-liquid distribution water inlet pipe, 14051-seventh shutoff valve, 14052-check valve, 14053-liquid distribution water flow valve, 14054-liquid distribution water flow meter, 14055-eighth shutoff valve, 1406-medicament metering device and 1407-mixed dissolving device.

Detailed Description

In the present invention, "tube" and "bypass" each refer to a pipe for passing the solution water, the mother liquor, the dilution water or the dilution liquid. The term "front end" refers to the direction in which the solution water, mother liquor, dilution water or dilution liquid flows into the piping or equipment, the term "rear end" refers to the direction in which the solution water, mother liquor, dilution water or dilution liquid flows out of the piping or equipment, and the term "sequentially arranged" refers to the fact that the piping or equipment is connected in series along the flow direction of the solution water, mother liquor, dilution water or dilution liquid. The "shut-off valve" refers to a valve which can be opened or closed when being electrified and can be closed when being not electrified, and can be a solenoid valve. The opening degree of the flow valve can be adjusted by the controller under the condition of electrifying, and the opening degree of the flow valve at the moment of deenergizing is kept under the condition of deenergizing. The normally open electromagnetic valve can be closed under the condition of power-on, and can be maintained in a normally open state under the condition of power-off.

In the embodiment of the present invention, algorithms of steps of data acquisition, transmission, storage, processing, and the like, which are not specifically described, and hardware structures, circuit connections, and the like, which are not specifically described, may be implemented by the contents disclosed in the prior art.

Example 1

The liquid medicine adding system of the embodiment is shown in fig. 1 and 2, and comprises a liquid supplementing box liquid inlet pipe 1, a mother liquid box 2, a mother liquid pipe 3, a water supplementing box liquid outlet pipe 4 and a diluent adding pipe 6 which are sequentially arranged. The system also includes a controller that can select a PLC chip, a PC, or a server.

The inlet of the mother liquor tank 2 is arranged at the bottom of the mother liquor tank 2, and the liquor inlet pipe 1 of the liquor replenishing tank is communicated with the inlet of the mother liquor tank 2. The outlet of the mother liquor tank 2 is arranged at the bottom of the mother liquor tank 2, and the mother liquor pipe 3 is communicated with the outlet of the mother liquor tank 2. An air inlet pipeline is arranged at the top of the mother liquor tank 2, and a first normally open electromagnetic valve 201 is arranged on the air inlet pipeline. When the system is powered off, the first normally open solenoid valve 201 is opened to supplement air into the mother liquor tank 2 to maintain the air pressure, so that the mother liquor in the mother liquor tank 2 can be conveyed to the rear-end process under the action of gravity.

The in-line dilution device 5 comprises a first mixer 505, preferably the first mixer 505 is a tubular mixer. The front end of the first mixer 505 is provided with a mother liquor inlet pipe 501 and a dilution water inlet pipe 503, and the rear end is communicated with a dilution liquor dosing pipe 6. The front end of the mother liquid inlet pipe 501 is communicated with a mother liquid pipe 3. The mother liquor inlet pipe 501 is sequentially provided with a first shutoff valve 5011, a mother liquor inlet flow valve 5012, a mother liquor inlet flow meter 5013 and a second shutoff valve 5014. A fourth shutoff valve 5031, a dilution water flow valve 5032, a dilution water flow meter 5033 and a fifth shutoff valve 5034 are sequentially arranged on the dilution water inlet pipe 503.

The 3 rear ends in mother liquor pipe still are connected with emergent mother liquor pipe 7, the rear end of emergent mother liquor pipe 7 is connected with the emergent cartridge case 10 of throwing that is arranged in adding the medicine to the water treatment pond. Emergent mother liquor pipe 7 is provided with emergent mother liquor flow valve 701 and second normally open solenoid valve 702, mother liquor inlet flow meter 5013 with the input electric connection of controller, mother liquor inlet flow valve 5012 with emergent mother liquor flow valve 701 with the output electric connection of controller. For the messenger mother liquor feed flow valve 5012 with the flow of emergent mother liquor flow valve 701 has the same corresponding relation with the flow of mother liquor, in this embodiment, mother liquor feed pipe 501 and emergent mother liquor pipe 7 adopt the pipeline of the same pipe diameter to set up.

As a preferable scheme, a mother liquor standby bypass 502 is connected in parallel to the mother liquor inlet pipe 501, and a third shutoff valve 5021 is arranged on the mother liquor standby bypass 502. Dilution water inlet pipe 503 is connected with a water inlet standby bypass 504 in parallel, and a sixth shutoff valve 5041 is arranged on the water inlet standby bypass 504.

By adopting the system, the liquid medicine adding method of the embodiment comprises the following steps:

(1) Preparing a mother solution;

(2) Inputting the mother liquor into a mother liquor box 2;

(3) Inputting mother liquor from a mother liquor box 2 into an online diluting device 5 and an emergency medicine adding device (namely an emergency mother liquor pipe 7), and adjusting the opening degree of a flow valve to maintain the flow of the mother liquor allowed to pass through a mother liquor inlet pipe 501 and the emergency mother liquor pipe 7 to be the same in real time, wherein the emergency medicine adding device is cut off or communicated through a normally open electromagnetic valve; in practical conditions, at least one of the mother liquor inlet pipe 501 and the emergency mother liquor pipe 7 is usually cut off by other valves. Thus, the "permitted mother liquor flow rate" refers to the flow rate of the mother liquor in the mother liquor inlet pipe 501 or the emergency mother liquor pipe 7, provided that no other valve cuts off the piping.

(4) Under the condition of non-emergency dosing, the first normally open electromagnetic valve 201 and the second normally open electromagnetic valve 702 are powered off, and the mother liquor is diluted by the online diluting device 5 to complete the dosing of the liquid medicine;

under the condition of emergency medicine adding, after power failure, the first normally open electromagnetic valve 201 and the second normally open electromagnetic valve 702 are opened, the closing valves are closed, the opening degree of each flow valve at the power failure moment is maintained, and liquid medicine adding is completed through the emergency mother liquid pipe 7 and the emergency medicine feeding pipe 10. The system of the embodiment has a simple structure, and under the emergency dosing condition, mother liquor with the same flow rate as the power-off time is directly added into the water treatment tank, so that the accuracy of the emergency dosing speed is ensured.

Example 2

The structure of the liquid medicine dosing system of this embodiment is shown in fig. 3 and 4, and the basic structure is the same as that of embodiment 1, except that: this embodiment is also provided with an emergency makeup tank 11. The entry setting of emergent moisturizing case 11 is at the top of emergent moisturizing case 11, the export setting of emergent moisturizing case 11 is in emergent moisturizing case 11 bottoms, the exit linkage of emergent moisturizing case 11 has moisturizing case drain pipe 4, moisturizing case drain pipe 4 rear end with dilution water inlet tube 503 intercommunication, moisturizing case drain pipe 4 rear end still is connected with emergent water pipe 8. An air inlet pipeline is arranged at the top of the emergency water replenishing tank 11, and a fourth normally-open electromagnetic valve 1101 is arranged on the air inlet pipeline.

The rear end of the emergency mother liquor pipe 7 and the rear end of the emergency water pipe 8 are connected with the emergency dilution device 9, the emergency dilution device 9 comprises a second mixer 901, and the second mixer 901 is a mixer which does not use electric energy, such as a pipe mixer. An emergency dosing pipe 10 for adding medicine into the water treatment tank is arranged at the rear end of the second mixer 901.

The dilution water flow meter 5033 is electrically connected to the input end of the controller, and the dilution water flow valve 5032 and the emergency water flow valve 801 are electrically connected to the output end of the controller. In order to make the opening degrees of the dilution water flow valve 5032 and the emergency water flow valve 801 have the same correspondence with the flow rate of the dilution water, in the present embodiment, the dilution water inlet pipe 503 and the emergency water pipe 8 are provided by using pipes having the same pipe diameter.

By adopting the system, the liquid medicine adding method of the embodiment comprises the following steps:

(1) And (5) preparing a mother solution.

(2) Inputting the mother liquor into a mother liquor box 2; the dilution water is fed into the emergency replenishing tank 11.

(3) The mother liquor is input into the online diluting device 5 and the emergency medicine adding device (namely the emergency mother liquor pipe 7) from the mother liquor box 2, and the flow of the mother liquor allowed to pass through the mother liquor inlet pipe 501 and the emergency mother liquor pipe 7 is maintained to be the same in real time through the adjustment of the opening degree of the flow valve.

The dilution water is input into the online dilution device 5 and the emergency dosing device (i.e. the emergency water pipe 8) from the emergency water supplement tank 11, and the flow of the dilution water allowed to pass through the dilution water inlet pipe 503 and the emergency water pipe 8 is maintained to be the same in real time through the adjustment of the opening of the flow valve.

The emergency medicine feeding device is cut off or communicated through a second cut-off valve 702 and a third normally open electromagnetic valve 802.

(4) Under the condition of non-emergency dosing, the first normally open electromagnetic valve 201, the second normally open electromagnetic valve 702, the third normally open electromagnetic valve 802 and the fourth normally open electromagnetic valve 1101 are electrified and closed, and the dosing of the liquid medicine is completed after the mother liquid is diluted by the online diluting device 5;

under the condition of emergency medicine adding, after power failure, the first normally open electromagnetic valve 201, the second normally open electromagnetic valve 702, the third normally open electromagnetic valve 802 and the fourth normally open electromagnetic valve 1101 are opened, each shut-off valve is closed, each flow valve maintains the opening degree at the power failure moment, and liquid medicine adding is completed after mother liquor is diluted through the emergency dilution device 9. The embodiment adds the diluent that the flow is the same, the concentration is the same with outage moment in the water treatment pond under the emergent circumstances of adding medicine, has guaranteed the accuracy of emergent medicine speed and concentration, guarantees that the water treatment effect with normal medicine under the emergent operating mode that adds medicine is almost unanimous.

Example 3

The structure of the liquid medicine adding system of this embodiment is shown in fig. 5, and the structure is basically the same as that of embodiment 2, and the differences are as follows: in this embodiment, the emergency dilution device 9 is not provided, and the online dilution device 5 realizes the function of the emergency dilution device 9; the emergency dosing pipe 10 is not arranged in the embodiment, and the diluent dosing pipe 6 achieves the function of the emergency dosing pipe 10. Specifically, the rear end of the mother liquor pipe 3 is connected with a mother liquor inlet pipe 501 and an emergency mother liquor pipe 7 at the same time, and the rear ends of the mother liquor inlet pipe 501 and the emergency mother liquor pipe 7 are both communicated with a first mixer 505 in the online dilution device 5, that is, the mother liquor inlet pipe 501 and the emergency mother liquor pipe 7 are in parallel relation; the rear end of moisturizing case drain pipe 4 is connected with dilution water inlet tube 503 and emergent water pipe 8 simultaneously, and the rear end of dilution water inlet tube 503 and emergent water pipe 8 all communicates with first blender 505 in online diluting device 5, and dilution water inlet tube 503 and emergent water pipe 8 are the parallel relation promptly.

By adopting the system, the liquid medicine adding method of the embodiment comprises the following steps:

(1) And (5) preparing a mother solution.

(2) Inputting the mother liquor into a mother liquor box 2; the dilution water is fed into the emergency replenishing tank 11.

(3) The mother liquor is input into the online diluting device 5 and the emergency medicine adding device (namely the emergency mother liquor pipe 7) from the mother liquor box 2, and the flow of the mother liquor allowed to pass through the mother liquor inlet pipe 501 and the emergency mother liquor pipe 7 is maintained to be the same in real time through the adjustment of the opening degree of the flow valve.

The dilution water is input into the online dilution device 5 and the emergency dosing device (namely the emergency water pipe 8) from the emergency water replenishing tank 11, and the flow of the dilution water allowed to pass through the dilution water inlet pipe 503 and the emergency water pipe 8 is maintained to be the same in real time through the adjustment of the opening degree of the flow valve.

The emergency medicine adding device is cut off or communicated through a second cut-off valve 702 and a third normally open electromagnetic valve 802.

(4) Under the condition of non-emergency dosing, the first normally open electromagnetic valve 201, the second normally open electromagnetic valve 702, the third normally open electromagnetic valve 802 and the fourth normally open electromagnetic valve 1101 are powered off, and the dosing of the liquid medicine is completed after the mother liquid is diluted by the online diluting device 5;

under the condition of emergency medicine adding, after power failure, the first normally open electromagnetic valve 201, the second normally open electromagnetic valve 702, the third normally open electromagnetic valve 802 and the fourth normally open electromagnetic valve 1101 are opened, each shut-off valve is closed, each flow valve maintains the opening degree at the power failure moment, and liquid medicine adding is completed after mother liquid is diluted through the online diluting device 5. The embodiment adds the diluent that the flow is the same, the concentration is the same with outage moment in the water treatment pond under the emergent circumstances of adding medicine, has guaranteed the accuracy of emergent medicine speed and concentration, guarantees to add the water treatment effect of medicine almost unanimous with normally under the emergent operating mode of medicine.

Example 4

The structure of the chemical liquid adding system of this embodiment is shown in fig. 6 and 7, and the basic structure is the same as that of embodiment 1, except that: the present embodiment further includes a mother liquor supply device 14, and the mother liquor supply device 14 is a mother liquor tank 1401. The outlet of the mother liquor supply device 14 is provided with a mother liquor conveying main pipe 13, the rear end of the mother liquor conveying main pipe 13 is connected with two liquor supplementing box liquor inlet pipes 1, the rear end of each liquor supplementing box liquor inlet pipe 1 is sequentially provided with a mother liquor box 2, a mother liquor pipe 3, an online diluting device 5 and a diluent dosing pipe 6, and the rear end of each mother liquor pipe 3 is sequentially provided with an emergency mother liquor pipe 7 and an emergency dosing pipe 10. Two diluent dosing pipes 6 in this embodiment are used for carrying out non-emergency medicine feeding to two water treatment ponds respectively, and two emergency medicine feeding pipes 10 are used for right respectively two water treatment ponds carry out emergency medicine feeding.

The method of adding the chemical solution in this example is the same as that in example 1. Through this embodiment, can independently throw the liquid medicine (being the diluent) of throwing different flow and concentration to two water treatment ponds respectively, under the emergent circumstances of adding the medicine, can independently throw the mother liquor of different flow to two water treatment ponds, under the circumstances that the technological requirement in two water treatment ponds is different, guarantee the effect of water treatment.

Example 5

The structure of the chemical liquid adding system of this embodiment is shown in fig. 8, and the basic structure is the same as that of embodiment 4, except that: the mother liquor supply device 14 is a mother liquor quantitative dispensing system, the mother liquor quantitative dispensing system comprises a bale opener 1402, a storage bin 1403 is arranged at an outlet of the bale opener 1402, a stirring device and an air injection device 1404 are arranged in the storage bin 1403, and the stirring device and the air injection device 1404 are used for preventing medicaments from hardening in the storage bin 1403. A discharge device is disposed below the storage bin 1403, a drug metering device 1406 is disposed below the discharge device, and a mixing and dissolving device 1407 is disposed at an outlet of the drug metering device 1406. The inlet of the mixing and dissolving device 1407 is connected to a drug metering device 1406, and a dispensing water inlet pipe 1405 is further provided at the inlet of the mixing and dissolving device 1407. The outlet of the mixing and dissolving device 1407 is connected to the main mother liquid feed pipe 13.

The liquid preparation water inlet pipe 1405 is sequentially provided with a seventh shut-off valve 14051, a check valve 14052, a liquid preparation water flow valve 14053, a liquid preparation water flow meter 14054 and an eighth shut-off valve 14055, wherein the liquid preparation water flow meter 14054 is electrically connected with the input end of the controller, and the liquid preparation water flow valve 14053 is electrically connected with the output end of the controller.

The controllable mother liquor of concentration can be configured automatically to this embodiment through the quantitative dispensing system of mother liquor.

Example 7

The basic structure of the chemical liquid adding system of the embodiment is the same as that of the embodiment 2, and the differences are as follows: the embodiment further comprises a mother liquid supply device 14, a mother liquid conveying main pipe 13 is arranged at an outlet of the mother liquid supply device 14, and the rear end of the mother liquid conveying main pipe 13 is communicated with the liquid inlet pipe 1 of the liquid supplementing tank. The mother liquor supply device 14 is the same as the mother liquor dosing system in example 5.

The embodiment also provides a control system of the liquid medicine adding system, and the structure of the control system is shown in fig. 9. The structure is as follows:

the input of controller is connected with mother liquor inlet flow meter 5013, the output of controller is connected with mother liquor inlet flow valve 5012 and emergent mother liquor flow valve 701. The mother liquor inlet flow meter 5013 is used for detecting the flow of the mother liquor in the dilution process of the mother liquor; the mother liquor inlet flow valve 5012 is used for adjusting the flow of the mother liquor in the mother liquor dilution process; the emergency mother liquid flow valve 701 is used for adjusting the flow of mother liquid in the liquid medicine emergency adding process; the controller synchronously adjusts the opening degrees of the mother liquor inlet flow valve 5012 and the emergency mother liquor flow valve 701 according to the input signal of the mother liquor inlet flow meter 5013, so that the flow rate of the added mother liquor is consistent with the power-off time under the condition of emergency dosing.

As a preferable scheme, an input end of the controller is connected with a dilution water flow meter 5033, and an output end of the controller is connected with a dilution water flow valve 5032 and an emergency water flow valve 801; the dilution water flow meter 5033 is used for detecting the flow of dilution water in the mother liquor dilution process; the dilution water flow valve 5032 is used for adjusting the flow of dilution water in the mother liquor dilution process; the emergency water flow valve 801 is used for adjusting the flow of dilution water in the emergency addition process of the liquid medicine; the controller synchronously adjusts the opening degrees of the dilution water flow valve 5032 and the emergency water flow valve 801 according to the input signal of the dilution water flow meter 5033, so that the flow of the added dilution water is kept consistent with the power-off moment under the condition of emergency dosing, and the concentration of the added liquid medicine (namely the dilution liquid) is kept consistent with the power-off moment.

Preferably, a liquid distribution water flow meter 14054 is connected to an input end of the controller, and a liquid distribution water flow valve 14053 and a drug metering device 1406 are connected to an output end of the controller. The liquid preparation water flow meter 14054 is used for detecting the flow of liquid preparation water in the mother liquid preparation process; the liquid preparation water flow valve 14053 is used for adjusting the flow of liquid preparation water in the mother liquid preparation process; the medicament metering device 1406 is used for adjusting the addition amount of medicaments in the mother liquor preparation process; the controller adjusts the opening degree of the liquid dispensing water flow valve 14053 in accordance with an input signal of the liquid dispensing water flow meter 14054. The preferred solution enables the automatic preparation of a mother liquor of controlled concentration.

As a preferable scheme, an input end of the controller is connected with a process parameter input device, and the process parameter input device is used for inputting at least one of raw water turbidity, mother liquor concentration, mother liquor flow or dilution water flow. When the input process parameter is raw water turbidity, the process parameter input equipment is a raw water turbidity detection device, and the controller can automatically convert the process parameters such as mother liquor concentration, diluent adding speed and the like required by the process according to the requirements of the water treatment process in the prior art according to the result of detecting the raw water turbidity. And when the input process parameter is the concentration of the mother liquor, the flow of the mother liquor or the flow of the dilution water, the process parameter input equipment is at least one of a touch screen, an input key or a mouse.

As a preferable scheme, the output end of the controller is further connected with a power module; the power module is used for cutting off or connecting the power of the first normally open solenoid valve 201, the second normally open solenoid valve 702, the third normally open solenoid valve 802 and the fourth normally open solenoid valve 1101. Through this preferred scheme, can realize under the condition (for example equipment trouble) of non-unexpected outage, the artificial power of cutting off each normally open solenoid valve makes it open to emergent medicine that adds.

The embodiment can show that the liquid medicine adding system, the liquid medicine adding method and the control system thereof can realize the liquid medicine emergency adding function in the water treatment process. In addition, the emergency dosing process can ensure that the dosing speed of the liquid medicine and/or the concentration of the liquid medicine are maintained at the level of the power-off time, so that the water treatment effect during emergency dosing is the same as that under the condition of non-emergency dosing. In addition, in the invention, the liquid medicine for emergency dosing is stored in high-concentration mother liquor, so that the problems of hydrolysis and deterioration caused by long-time storage of the liquid medicine for emergency dosing are solved.

Claims (10)

1. The utility model provides a can improve drug effect and have liquid medicine dosing system of emergent fluid infusion device, its characterized in that, including mother liquor case (2), online diluting device (5) and the controller that are used for setting up near the point of offeing medicine of water treatment pond, mother liquor case (2) be connected with online diluting device (5) front end through mother liquor feed liquor pipe (501), online diluting device (5) front end still is provided with dilution water inlet tube (503), online diluting device (5) rear end is provided with and is used for adding medicine diluent dosing pipe (6) in to the water treatment pond, online diluting device (5) pass through electric connection with the controller.

2. The fluid dosing system as defined in claim 1, wherein: still include emergent mother liquor pipe (7), mother liquor case (2) are connected with emergent mother liquor pipe (7) through mother liquor pipe (3), are connected with emergent mother liquor flow valve (701) and second on emergent mother liquor pipe (7) and normally open solenoid valve (702), connect emergent cartridge case (10) behind second normally open solenoid valve (702).

3. The fluid dosing system as defined in claim 2 wherein: the emergency water replenishing system is characterized by further comprising an emergency water replenishing tank (11), an emergency water pipe (8) and an emergency diluting device (9), wherein a water replenishing tank liquid outlet pipe (4) is arranged at an outlet of the emergency water replenishing tank (11), and the water replenishing tank liquid outlet pipe (4) is respectively communicated with the dilution water inlet pipe (503) and the emergency water pipe (8);

a dilution water flow control device is arranged on the dilution water inlet pipe (503), an emergency water flow valve (801) and a third normally open electromagnetic valve (802) are arranged on the emergency water pipe (8), the dilution water flow control device is electrically connected with the controller, and the emergency water flow valve (801) is electrically connected with the output end of the controller;

the rear end of emergent mother liquor pipe (7) with the rear end of emergent water pipe (8) with emergent diluting device (9) are connected, emergent diluting device (9) rear end is provided with and is arranged in the emergent pencil (10) of throwing medicine that adds the medicine to the water treatment pond.

4. The liquid medicine dosing system according to claim 2, wherein: an outlet of the emergency water replenishing tank (11) is arranged at the bottom of the emergency water replenishing tank (11), an air inlet pipeline is arranged at the top of the emergency water replenishing tank (11), and a fourth normally open electromagnetic valve (1101) is arranged on the air inlet pipeline;

and/or at least one shut-off valve is arranged on the dilution water inlet pipe (503);

and/or a water inlet standby bypass (504) is arranged on the dilution water inlet pipe (503) in parallel, and at least one shut-off valve is arranged on the water inlet standby bypass (504);

and/or the dilution water flow control device comprises a dilution water flow valve (5032) and a dilution water flow meter (5033), the dilution water flow meter (5033) is electrically connected with the input end of the controller, the dilution water flow valve (5032) is electrically connected with the output end of the controller, and preferably, the pipe diameters of the dilution water inlet pipe (503) and the emergency water pipe (8) are the same; or, the dilution water flow control device is a metering pump, and the metering pump is electrically connected with the output end of the controller.

5. The liquid medicine dosing system according to claim 2, wherein: the mother liquor flow control device comprises a mother liquor liquid inlet flow valve (5012) and a mother liquor liquid inlet flow meter (5013), the mother liquor liquid inlet flow meter (5013) is electrically connected with the input end of the controller, and the mother liquor liquid inlet flow valve (5012) is electrically connected with the output end of the controller; preferably, the mother liquor inlet pipe (501) and the emergency mother liquor pipe (7) have the same pipe diameter.

Or, the mother liquor flow control device is a metering pump, and the metering pump is electrically connected with the output end of the controller.

6. The liquid medicine dosing system according to claim 2, wherein: the rear end of the emergency mother liquid pipe (7) is connected with an emergency chemical dosing pipe (10) for dosing chemicals into the water treatment pool;

or the online dilution device (5) comprises a first mixer (505), the rear end of the first mixer (505) is communicated with a diluent feeding pipe (6), and the rear end of the emergency mother liquor pipe (7) is communicated with the first mixer (505).

7. The liquid medicine dosing system according to claim 2, wherein: the outlet of the mother liquor tank (2) is arranged at the bottom of the mother liquor tank (2), an air inlet pipeline is arranged at the top of the mother liquor tank (2), and a first normally-open electromagnetic valve (201) is arranged on the air inlet pipeline.

8. The liquid medicine dosing system according to claim 2, wherein: at least one shut-off valve is arranged on the mother liquid inlet pipe (501);

and/or a mother liquid standby bypass (502) is arranged on the mother liquid inlet pipe (501) in parallel, and at least one shut-off valve is arranged on the mother liquid standby bypass (502).

9. The liquid medicine dosing system according to claim 2, wherein: still include mother liquor feeding device (14), the exit of mother liquor feeding device (14) is provided with mother liquor and carries main pipe (13), the entrance of mother liquor case (2) is provided with fluid infusion case feed liquor pipe (1), mother liquor is carried main pipe (13) and is fed through with fluid infusion case feed liquor pipe (1).

10. The fluid administration system according to claim 9, wherein: the rear end of the mother liquid conveying main pipe (13) is connected with at least two liquid supplementing box liquid inlet pipes (1), each liquid supplementing box liquid inlet pipe (1) is sequentially provided with a mother liquid box (2), a mother liquid pipe (3), an online diluting device (5) and a diluent dosing pipe (6), and each liquid supplementing pipe (3) is connected with an emergency mother liquid pipe (7).

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