CN104338481A - Device for diluting concentrated solution and method - Google Patents
Device for diluting concentrated solution and method Download PDFInfo
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- CN104338481A CN104338481A CN201310332775.4A CN201310332775A CN104338481A CN 104338481 A CN104338481 A CN 104338481A CN 201310332775 A CN201310332775 A CN 201310332775A CN 104338481 A CN104338481 A CN 104338481A
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Abstract
The invention relates to a device for diluting a concentrated solution and a method. The device mainly comprises a first storage tank, a rotor pump, a frequency converter, a diluting pipeline, a flowmeter, a flow regulating valve, a homogenizing mixing pump and a controller. The frequency converter is electrically connected to the rotor pump and outputs a first frequency signal to the rotor pump according to a first flow signal so as to control the rotation speed of the rotor pump, thus controlling the flow of the concentrated solution. The flowmeter is arranged on the diluting pipeline and outputs a flow detection signal. The flow regulating valve is arranged on the diluting pipeline and regulates the opening degree of the valve according to the flow detection signal and a second flow signal so as to control the solvent flow of the diluting pipeline. The homogenizing mixing pump is provided with a first input port, a second input port and an output port. The first input port is connected to the rotor pump through a pipeline. The second input port is connected to the diluting pipeline. The controller is connected to the frequency converter and the flow regulating valve and outputs the first flow signal and the second flow signal, wherein the second flow signal is determined according to the first flow signal.
Description
Technical field
The present invention relates to a kind of daily chemical products production field, especially relate to a kind of concentrated solution air mix facilities and method.
Background technology
For to the consideration in cost of transportation and raw-material stability etc. in daily use chemicals industry, manufacturer directly can buy the material solution of high concentration from outside, and then the material solution of high concentration is diluted to the low concentration raw material that can directly use on producing in our factory.With AES(sodium sulfate of polyethenoxy ether of fatty alcohol, having another name called ethoxylated alkyl sulfate) raw material is example, the AES solution of 25% is a kind of surfactant, and it is a kind of bulk raw material in shampoo industry.Daily use chemicals manufacturing enterprise need be that 25% concentration is re-used as raw material for production and application by buying the 70% concentration AES dilution come under normal circumstances.
AES is water-soluble; hydrolysis can be produced more than 50 degrees Celsius; can produce below 5 degrees Celsius and solidify; when not reconciling Ji agent containing viscosity; if AES will be diluted to the aqueous solution containing 25% active component; often can cause the doubtful glue that a kind of viscosity is high, the raw material being difficult to form uniformity coefficient higher is used to workshop by automation Cemented filling.If avoid the generation of this doubtful glue to need the AES of high concentration to be added to the water and carry out stirring and heating to a certain degree.
The AES solution preparation process of current routine is: the AES of 70% concentration material supplier provided deposits in raw material storage tank; Dilute in agitator tank at AES and put into a certain amount of water; By pipeline or Manual material feeding mode the AES of 70% concentration added in agitator tank and carry out adding thermal agitation; The AES diluted is stored in the AES storage tank of 25% concentration.
But there is following defect in the AES preparation method of above-mentioned routine:
1, take up room comparatively large, equipment needed thereby is more.Need the storage tank of the AES of 70% concentration or Raw material pail parking space under general technology, AES dilutes agitator tank and input and output material pump, the storage tank of AES of 25% concentration and discharging pump.
2, required time is long.The AES of 70% concentration heats agitation and dilution to 25% generally needs 30 ~ 60min.
3, inequality is stirred.Easy generation high viscosity is doubted glue and is difficult to stir.
4, proportioning is diluted inaccurate.Measuring equipment is not had to cause diluting rear concentration inaccurate and affect product quality.
Summary of the invention
The object of this invention is to provide a kind of concentrated solution air mix facilities and method, to overcome the one or more problems existed in prior art.
The present invention be solve the problems of the technologies described above the technical scheme adopted be propose a kind of concentrated solution air mix facilities, comprising:
First storage tank, in order to store solution to be diluted;
Impeller pump, connects this first storage tank by pipeline;
Frequency converter, is electrically connected this impeller pump, exports a frequency signal to this impeller pump according to a first flow signal, to control the rotating speed of this impeller pump, thus controls the flow of this solution;
Dilution pipeline, in order to the solvent of input for diluting;
Flowmeter, is located on this dilution pipeline, exports a flow detecting signal;
Flow control valve, is located on this dilution pipeline, according to the aperture of this flow detecting signal and one second flow Signal Regulation valve, to control the solvent flux of this dilution pipeline;
Homogeneous mixing pump, has the first input port, the second input port and delivery outlet, and this first input port connects this impeller pump by pipeline, and this second input port connects this dilution pipeline, and this delivery outlet exports the solution through dilution;
Contactor, is electrically connected this homogeneous mixing pump, controls the running of this homogeneous mixing pump according to a switching signal; And
Controller, connect this frequency converter, this flow adjusts valve and this contactor, this controller exports this first flow signal, this second flow signal and this switching signal, and wherein this second flow signal determines according to this first flow signal.
In one embodiment of this invention, this flow control valve utilizes this flow detecting signal and this second flow signal with the aperture of PID mode control valve.
In one embodiment of this invention, this solution is sodium sulfate of polyethenoxy ether of fatty alcohol, and this solvent is pure water.
In one embodiment of this invention, concentrated solution air mix facilities also comprises the second storage tank, is connected the delivery outlet of this homogeneous mixing pump by pipeline.
The present invention proposes a kind of concentrated solution dilution process, utilize a concentrated solution air mix facilities to carry out solution dilution, this concentrated solution air mix facilities comprises the first storage tank, dilution pipeline, impeller pump, frequency converter, flowmeter, homogeneous mixing pump, the second storage tank, flow control valve, contactor and controller, this first storage tank is in order to store solution to be diluted, and this dilution pipeline is in order to the solvent of input for diluting, this impeller pump connects this first storage tank by pipeline, this frequency converter is electrically connected this impeller pump, this flowmeter is located on this dilution pipeline, this homogeneous mixing pump has the first input port, second input port and delivery outlet, this first input port connects this impeller pump by pipeline, this second input port connects this dilution pipeline, second storage tank connects the delivery outlet of this homogeneous mixing pump by pipeline, flow control valve is located on this dilution pipeline, contactor is electrically connected this homogeneous mixing pump, controller connects this frequency converter, this flow adjustment valve and this contactor, wherein the method comprises the following steps:
Export a first flow signal to this frequency converter from this controller, make this frequency converter produce a frequency signal;
To determine according to this first flow signal at this controller and export one second flow signal to this flow control valve;
This flowmeter is utilized to detect the solvent flux of this dilution pipeline and export a flow detecting signal to this flow control valve;
The aperture of valve according to this flow detecting signal and this second flow Signal Regulation valve is adjusted, to control the solvent flux of this dilution pipeline at this flow;
A switching signal is exported to this contactor from this controller;
Use this contactor to open this homogeneous mixing pump, make this solution and this solvent enter this homogeneous mixing pump from this first input port and this second input port respectively and mix; And
The complete solution of mixing is exported from the delivery outlet of this homogeneous mixing pump.
In one embodiment of this invention, this flow control valve is with the aperture of PID mode control valve.
In one embodiment of this invention, this solution is sodium sulfate of polyethenoxy ether of fatty alcohol, and this solvent is pure water.
Concentrated solution air mix facilities of the present invention and method, realize dilution by the mode of Cemented filling mode and mixing, significantly reduce floor space than agitated kettle hybrid mode in the past.In addition, the mode using impeller pump, flowmeter and frequency converter to combine, accurately can control the flow proportional of solution and solvent, thus obtains concentration target solution accurately.Moreover homogeneous mixing pump continuously carries out the married operation of high speed dispersion, the target solution mixed can be obtained continuously.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 illustrates the concentrated solution air mix facilities structure chart of one embodiment of the invention.
Fig. 2 illustrates the concentrated solution dilution process flow chart of one embodiment of the invention.
Detailed description of the invention
Fig. 1 illustrates the concentrated solution air mix facilities structure chart of one embodiment of the invention.With reference to shown in Fig. 1, this concentrated solution air mix facilities 10 can comprise the first storage tank 11, impeller pump 12, frequency converter 13, dilution pipeline 14, flowmeter 15, flow control valve 16, homogeneous mixing pump 17, contactor 19 and controller 20.First storage tank 11 in order to store solution to be diluted, such as, in daily use chemicals industry conventional AES.This solution normally concentration is higher, such as, reach the concentrated solution of 75%.The capacity of the first storage tank 11 can reach 1.5T.
Impeller pump 12 connects the first storage tank 11 by pipeline.Frequency converter 13 is electrically connected impeller pump 12.Frequency converter 13 can export a frequency signal to impeller pump 12 according to a first flow signal, to control the rotating speed of impeller pump 12, thus controls the flow of solution.First flow signal is generally analog signals.
Dilution pipeline 14 is in order to the solvent of input for diluting.The solvent source of dilution pipeline 14 is can a storage tank, also can be outside pipeline input.When solution to be diluted is AES, the solvent for diluting can be pure water.Flowmeter 15 can be located on dilution pipeline 14, to detect the flow of the solvent on dilution pipeline 14, and exports a flow detecting signal.Flow control valve 16 is located on dilution pipeline 14, according to the aperture of flow detecting signal and one second flow Signal Regulation valve, to control the solvent flux of this dilution pipeline.
Homogeneous mixing pump 17 has the first input port 171, input port 171, second and delivery outlet 173.First input port 171 connects impeller pump 12 by pipeline.Second input port 172 connects dilution pipeline 14.Second storage tank 18 connects the delivery outlet 173 of homogeneous mixing pump 17 by pipeline.
In addition, contactor 19 is electrically connected homogeneous mixing pump 17, to control the running of homogeneous mixing pump 17 according to a switching signal.
In the present embodiment, first flow signal, the second flow signal and switching signal can be provided by controller 20.Controller 20 connects frequency converter 13, flow control valve 16 and contactor 19.Controller 20 can receive the setting of the flow to the solution flowing through impeller pump 12, and is converted to above-mentioned first flow signal, and exports to frequency converter 13.Controller 20 determines the second flow signal according to first flow signal, and exports to flow control valve 16.Such as, after determining first flow signal, according to the mixed proportion of solution and solvent, the second flow signal can be set, make the ratio of two flows be required mixed proportion.
In addition, controller 20 connects contactor 19, in order to export above-mentioned switching signal to contactor 19.
Before carrying out mixed diluting, can by solution to be diluted, the such as AES of 70% concentration is stored in the first storage tank 11.In addition, also according to the height of liquid level of the first storage tank 11, manually solution can be added in storage tank.Secondly, adopt Pipeline transport mode, by impeller pump 12, solution is delivered to from the first storage tank 11 first input port 171 of homogeneous mixing pump 17.Meanwhile, by solvent, such as pure water delivers to the second input port 172 of homogeneous mixing pump by dilution pipeline 14.Solution and solvent are carried out high speed dispersion by homogeneous mixing pump 17, fully mix, then the direct dilute solution that will prepare in proportion, and the AES dilute solution of such as 25% is exported by pipeline.The dilute solution that pipeline exports can send into one second storage tank, also directly can carry out production and application.
Highly concentrated solution will be diluted to the solution of low concentration, the key of control controls both flow proportional respectively well.
Embodiments of the invention utilize impeller pump to control to be directly proportional to rotating speed this characteristic to fluid flow, by selecting the pattern of " impeller pump+frequency converter " to realize stable flow-control in liquid inventory controls, and this flow according to the change of frequency converter output frequency, can form linear change.
For this reason, first according to processing compound requirement, man-machine interface 21 arranges the flow (unit is: liter/second) needed for highly concentrated solution, and by communication interface by this Parameter transfer to controller 20.Controller 20, by this flow set, converts the acceptable 4-20mA analog signals of frequency converter 13 to and exports to frequency converter 13.Frequency converter 13, according to the analog signals received, exports corresponding frequency signal to impeller pump 12, thus realizes controlling the rotating speed of impeller pump 12.
Above, the relation between impeller pump rotating speed and setting flow is as follows:
In above formula (1): V is the rotating speed (unit: rpm) of impeller pump;
Q
xfor the flow (unit: liter/second) that touch-screen sets;
Q
maxfor the metered flow (unit: liter/second) of impeller pump;
V
maxfor the specified maximum speed (unit: rpm) of impeller pump;
Above, the relation between frequency converter running frequency and setting flow is as follows:
In above formula: F is frequency converter running frequency (unit: HZ)
Q
xfor the flow (unit: liter/second) that touch-screen sets
Q
maxfor the metered flow (unit: liter/second) of impeller pump
50 is the specified maximum running frequency (unit: HZ) of impeller pump
In addition, as previously mentioned, after determining liquid inventory, can by mixed proportion determination solvent flux.Then proportional control is carried out by flow control valve 16 pairs of solvent flux.Flow control valve 16, will with the second flow signal for foundation when adjust flux, and the flow detecting signal combined from flowmeter 15 carries out the adjustment of valve opening.This adjustment process can introduce PID (PID) computing, to realize regulating more accurately.
Touch-screen can be used in the present embodiment as above-mentioned man-machine interface, be connected by MPI communication between touch-screen with controller 20.
Fig. 2 illustrates the concentrated solution dilution process flow chart of one embodiment of the invention.With reference to shown in Fig. 2, conclude, the concentrated solution dilution process flow process of the present embodiment is as follows:
Step 201, exports a first flow signal to frequency converter 13 from controller 20, makes frequency converter 13 produce a frequency signal;
Step 202, to determine according to first flow signal at controller 20 and exports one second flow signal to flow control valve 16;
Step 203, utilizes flowmeter 15 detect the solvent flux of dilution pipeline 14 and export a flow detecting signal to flow control valve 16;
Step 204, adjusts the aperture of valve 16 according to this flow detecting signal and the second flow Signal Regulation valve at flow, to control the solvent flux diluting pipeline 14;
Step 205, exports a switching signal to contactor 19 from controller 20;
Step 206, uses contactor 19 to open homogeneous mixing pump 17, makes solution and solvent enter homogeneous mixing pump from the first input port and the second input port respectively and mix;
Step 207, exports the complete solution of mixing from the delivery outlet of homogeneous mixing pump 17.
Therefore, the concentrated solution dilution process of the embodiment of the present invention and device, realize dilution by the mode of Pipeline transport mode and mixing, significantly reduce floor space than agitated kettle hybrid mode in the past.And dilution is without the need to long wait, namely joins and namely use.In addition, the mode using impeller pump, frequency converter, flow control valve to combine, accurately can control the flow proportional of solution and solvent, thus obtains concentration target solution accurately.Moreover homogeneous mixing pump continuously carries out the married operation of high speed dispersion, can obtain the target solution mixed continuously, make stirring abundant, homogenizing effect is good.
Although the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, change or the replacement of various equivalence also can be made when not departing from spirit of the present invention, therefore, as long as all will drop in the scope of claims of the application the change of above-described embodiment, modification in spirit of the present invention.
Claims (7)
1. a concentrated solution air mix facilities, comprising:
First storage tank, in order to store solution to be diluted;
Impeller pump, connects this first storage tank by pipeline;
Frequency converter, is electrically connected this impeller pump, exports a frequency signal to this impeller pump according to a first flow signal, to control the rotating speed of this impeller pump, thus controls the flow of this solution;
Dilution pipeline, in order to the solvent of input for diluting;
Flowmeter, is located on this dilution pipeline, exports a flow detecting signal;
Flow control valve, is located on this dilution pipeline, according to the aperture of this flow detecting signal and one second flow Signal Regulation valve, to control the solvent flux of this dilution pipeline;
Homogeneous mixing pump, has the first input port, the second input port and delivery outlet, and this first input port connects this impeller pump by pipeline, and this second input port connects this dilution pipeline, and this delivery outlet exports the solution through dilution;
Contactor, is electrically connected this homogeneous mixing pump, controls the running of this homogeneous mixing pump according to a switching signal; And
Controller, connect this frequency converter, this flow adjusts valve and this contactor, this controller exports this first flow signal, this second flow signal and this switching signal, and wherein this second flow signal determines according to this first flow signal.
2. concentrated solution air mix facilities as claimed in claim 1, is characterized in that, this flow control valve utilizes this flow detecting signal and this second flow signal with the aperture of PID mode control valve.
3. concentrated solution air mix facilities as claimed in claim 1, it is characterized in that, this solution is sodium sulfate of polyethenoxy ether of fatty alcohol, and this solvent is pure water.
4. concentrated solution air mix facilities as claimed in claim 1, be is characterized in that, also comprise the second storage tank, connected the delivery outlet of this homogeneous mixing pump by pipeline.
5. a concentrated solution dilution process, utilize a concentrated solution air mix facilities to carry out solution dilution, this concentrated solution air mix facilities comprises the first storage tank, dilution pipeline, impeller pump, frequency converter, flowmeter, homogeneous mixing pump, flow control valve, contactor and controller; This first storage tank is in order to store solution to be diluted, and this dilution pipeline is in order to the solvent of input for diluting; This impeller pump connects this first storage tank by pipeline, this frequency converter is electrically connected this impeller pump, this flowmeter is located on this dilution pipeline, this homogeneous mixing pump has the first input port, the second input port and delivery outlet, this first input port connects this impeller pump by pipeline, this second input port connects this dilution pipeline, flow control valve is located on this dilution pipeline, contactor is electrically connected this homogeneous mixing pump, controller connects this frequency converter, this flow adjusts valve and this contactor, and wherein the method comprises the following steps:
Export a first flow signal to this frequency converter from this controller, make this frequency converter produce a frequency signal;
To determine according to this first flow signal at this controller and export one second flow signal to this flow control valve;
This flowmeter is utilized to detect the solvent flux of this dilution pipeline and export a flow detecting signal to this flow control valve;
The aperture of valve according to this flow detecting signal and this second flow Signal Regulation valve is adjusted, to control the solvent flux of this dilution pipeline at this flow;
A switching signal is exported to this contactor from this controller;
Use this contactor to open this homogeneous mixing pump, make this solution and this solvent enter this homogeneous mixing pump from this first input port and this second input port respectively and mix; And
The complete solution of mixing is exported from the delivery outlet of this homogeneous mixing pump.
6. concentrated solution dilution process as claimed in claim 5, it is characterized in that, this flow control valve is with the aperture of PID mode control valve.
7. concentrated solution dilution process as claimed in claim 5, it is characterized in that, this solution is sodium sulfate of polyethenoxy ether of fatty alcohol, and this solvent is pure water.
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| CN201310332775.4A CN104338481B (en) | 2013-08-01 | 2013-08-01 | Concentrated solution air mix facilities and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096412A (en) * | 2017-06-27 | 2017-08-29 | 广州新浪爱拓化工机械有限公司 | AES dilutes integrated system |
| CN109126590A (en) * | 2018-08-21 | 2019-01-04 | 中国舰船研究设计中心 | A kind of dense medical fluid on-line dilution device based on injector |
| CN111076091A (en) * | 2020-01-06 | 2020-04-28 | 广州环投环境服务有限公司 | High-lift constant-current feeding device |
| CN113272245A (en) * | 2018-09-03 | 2021-08-17 | 宽泰克斯专利有限公司 | Beverage dispenser head for mixing concentrates, diluents and additives |
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| JP2001212442A (en) * | 2000-02-04 | 2001-08-07 | Nitto Seiko Co Ltd | Batch controller |
| CN201750990U (en) * | 2010-07-15 | 2011-02-23 | 福建康之味食品工业有限公司 | Syrup-water mixing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096412A (en) * | 2017-06-27 | 2017-08-29 | 广州新浪爱拓化工机械有限公司 | AES dilutes integrated system |
| CN109126590A (en) * | 2018-08-21 | 2019-01-04 | 中国舰船研究设计中心 | A kind of dense medical fluid on-line dilution device based on injector |
| CN113272245A (en) * | 2018-09-03 | 2021-08-17 | 宽泰克斯专利有限公司 | Beverage dispenser head for mixing concentrates, diluents and additives |
| US11542142B2 (en) | 2018-09-03 | 2023-01-03 | Quantex Arc Limited | Beverage dispenser head for mixing concentrate, diluent and additive |
| US11858797B2 (en) | 2018-09-03 | 2024-01-02 | Quantex Arc Limited | Beverage dispenser head for mixing concentrate, diluent and additive |
| CN111076091A (en) * | 2020-01-06 | 2020-04-28 | 广州环投环境服务有限公司 | High-lift constant-current feeding device |
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