CN207307781U - A kind of high accuracy chemicals dosing plant - Google Patents
A kind of high accuracy chemicals dosing plant Download PDFInfo
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- CN207307781U CN207307781U CN201721198620.6U CN201721198620U CN207307781U CN 207307781 U CN207307781 U CN 207307781U CN 201721198620 U CN201721198620 U CN 201721198620U CN 207307781 U CN207307781 U CN 207307781U
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- metering pump
- pipe
- main comb
- chemicals dosing
- dosing plant
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Abstract
The utility model discloses a kind of high-precision chemicals dosing plant, including adding unit and switch board, wherein adding unit includes NaOH solution tank NaOH, metering pump and flowmeter, temperature sensor is provided with NaOH solution tank NaOH, the bottom of NaOH solution tank NaOH is connected with wherein one end of the first main comb, the other end of first main comb respectively with blow-off pipe, wherein one end of cleaning pipe and the second main comb connects, the other end of blow-off pipe is connected with pollution discharge pond, the other end of cleaning pipe is connected with exterior clear water pipeline, the other end of second main comb is connected with metering pump input terminal, the output terminal of metering pump is connected with drug discharging tube, flowmeter is arranged on drug discharging tube, in blow-off pipe, cleaning pipe, first main comb, shut-off valve is both provided with second main comb and drug discharging tube;The utility model can ensure the accuracy of dosage, greatly reduce reagent cost, and ensure the high quality indicators of final products.
Description
Technical field
A kind of chemicals dosing plant, more particularly to a kind of high-precision chemicals dosing plant are the utility model is related to, belongs to water technology
Field.
Background technology
Chemicals dosing plant is a kind of Automatic Dosing product, is mainly used for boiler feedwater, recirculated water plus hydrazine, the phosphoric acid of power plant
The processing such as salt, it can also be used to which the industry such as oil, chemical industry, environmental protection, water system, unit-combination type chemicals dosing plant, mainly there is solution
The composition integrative installation technology such as case, metering pump, filter, safety valve, check-valves, pressure gauge, surge tank, liquid level gauge, switch board exists
On one base, combined type chemical-adding device need to be only placed in dosing room by user, and water inlet, medicine outlet are connected and connect electricity
Source, which can start, puts into operation, and the package unit of this batch production, can greatly reduce design and the workload of site operation, to whole
Quality, safety and the scene of machine system, which are put into operation, provides reliable guarantee;Chemicals dosing plant be using metering pump as main adding equipment,
By molten medicine-chest, blender, liquid level gauge, safety valve, check-valves, pressure gauge, filter, buffer, pipeline, valve, base, help
Ladder, automatic monitor system, electric control system etc. are needed to be assembled on a common platform by technological process, form a mould
Block, i.e., so-called skid-mounted type combined unit(Referred to as " prying body "), on demand by quantitative medicament be put into agitating solution case into
Row stirring and dissolving, is pumped to the course of work of toss area by metering again after dissolving, the big I of dosage is freely any
Adjust, to meet the place of different dosages;Chemicals dosing plant can be divided into using electromechanical integrated structure form from installing
It is fixed and portable(Cart type), the chemicals dosing plant of every kind of form be provided with stirring system, medicine system and automatically control be
System, several fixed skids are combined into an entirety, plus frequency-changing control system, it can be achieved that control, remote auto control on the spot
System, manually and automatically mutually conversion dosing, help sharp chemicals dosing plant to have compact-sized, small, low noise, stable working, peace
Fill the advantages that simple, easy for operation;Chemicals dosing plant accurately configures all kinds of solids and liquid by different technological designs
The solution of chemicals, then accurately added with metering pump, to reach various design requirements, as scale removal, deoxygenation, coagulation, acid adding plus
Alkali etc.;Dosing process is manually operable, also can be each by PC machine, magnetic double level gauge, PH meters, journey controller, frequency converter etc.
Kind electric appliance, instrument, make chemicals dosing plant be automatically controlled as electromechanical integrated product, realization;The dosage of chemicals dosing plant and dosing
Pressure, can choose suitable metering pump according to the needs of industrial flow, flow from 1L/h to 8000L/h, pressure from 0.1MPa to
Suitable product may be selected in the range of 25MPa, the measuring accuracy of metering pump may be up to ± 1%, and can realize a variety of Jie
Matter conveys at the same time, individually adjusts;The volume of liquor box can be by minimum 0.1m in chemicals dosing plant3To 20m3, can be selected according to dosage
It is fixed, according to the difference of pumped (conveying) medium, there is multiple material available, such as carbon steel(Carbon steel line with rubber), stainless steel, non-metallic material
(PE、PVC、PP、PTFE)Deng.
Existing tradition chemicals dosing plant is the levels of precision of the dosage of overall dosing using metering pump as main adding equipment
The quality and parameter of metering pump are depended entirely on, dosage such as excess or deficiency have an impact system operation, to final products
Quality also brings influence, and can cause the cost increase of waste and the environmental protection prevention of medicament.
The content of the invention
To solve the deficiencies in the prior art, the utility model provides a kind of high-precision chemicals dosing plant, can be passed according to temperature
Sensor and high-precision mass flowmenter monitoring data control diaphragm metering pump regulating agent dosage with high precision or logical manually
Cross PLC module and frequency converter and accurately control driving diaphragm metering pump to ensure the accuracy of dosage, greatly reduce medicament into
This, and ensure the high quality indicators of final products.
Technical solution is used by the utility model:
A kind of high accuracy chemicals dosing plant, including unit and switch board are added, the unit that adds includes NaOH solution tank NaOH, metering pump
And flowmeter, temperature sensor, the bottom of the NaOH solution tank NaOH and wherein one end of the first main comb are provided with the NaOH solution tank NaOH
Connection, the wherein one end of the other end of the first main comb respectively with blow-off pipe, cleaning pipe and the second main comb connect, the row
The other end of dirty pipe is connected with pollution discharge pond, and the other end of the cleaning pipe is connected with exterior clear water pipeline, the second main comb
The other end connected with metering pump input terminal, the output terminal of the metering pump is connected with drug discharging tube, and the flowmeter is arranged on out
On pencil, the blow-off pipe, cleaning pipe, the first main comb, be both provided with shut-off valve on the second main comb and drug discharging tube, described
Switch board is internally provided with PLC module and frequency converter, and the temperature sensor and flowmeter are electrically connected with PLC module and by signals
PLC module is conveyed to, the PLC module is measured according to the signal that temperature sensor and flowmeter convey by Frequency Converter Control
Pump.
As the further preferred of the utility model, overflow port, the overflow port are provided with the top of the NaOH solution tank NaOH
Connected by overflow pipe with pollution discharge pond, prevent liquid preparation excessive addition in NaOH solution tank NaOH.
As the further preferred of the utility model, the metering pump is diaphragm metering pump, and the diaphragm metering pump
On be provided with manual adjustment knob, easy to control diaphragm metering pump regulating agent dosage with high precision manually.
As the further preferred of the utility model, check-valves, and the check-valves are additionally provided with the drug discharging tube
Between metering pump and flowmeter, prevent that liquid preparation flows back in drug discharging tube.
As the further preferred of the utility model, it is described add unit be provided with it is multiple, it is the multiple to add unit
A switch board is shared, easy to be used during practical application the multiple combinations that add unit, and reserved spare or emergent throwing
Add unit.
As the further preferred of the utility model, to ensure equipment operating environment health, the bottom for adding unit
Portion is provided with liquid-bearing pan, in order to collect ejected wash water and devil liquor recovery.
The beneficial effects of the utility model are:Realizing can monitor according to temperature sensor and high-precision mass flowmenter
Data control diaphragm metering pump accurately to control drive with regulating agent dosage with high precision or by PLC module and frequency converter manually
Dynamic diaphragm metering pump greatly reduces reagent cost, and ensure that the high quality of final products refers to ensure the accuracy of dosage
Mark.
Brief description of the drawings:
Fig. 1 is the theory structure schematic diagram of the utility model embodiment;
Main Reference Numerals implication is as follows in figure:
1- NaOH solution tank NaOHs, 2- temperature sensors, 3- metering pumps, 4- flowmeters, 5- switch boards, 6- check-valves, 7- overflow pipes, 8-
Blow-off pipe, 9- cleaning pipes, 10- drug discharging tubes, the first main combs of 11-, the second main combs of 12-, 13- shut-off valves, 14- pollution discharge ponds.
Embodiment:
Specific introduction is done to the utility model with reference to the accompanying drawings and examples.
As shown in Figure 1:The present embodiment is a kind of high-precision chemicals dosing plant, including adds unit and switch board 5, wherein adding
Unit includes NaOH solution tank NaOH 1, metering pump 3 and flowmeter 4, is provided with temperature sensor 2 on NaOH solution tank NaOH 1, the bottom of NaOH solution tank NaOH 1 with
Wherein one end connection of first main comb 11, the other end of the first main comb 11 respectively with blow-off pipe 8, cleaning pipe 9 and second
Wherein one end connection of main comb 12, the other end of blow-off pipe 8 are connected with pollution discharge pond 14, and the other end of cleaning pipe 9 and outside are clear
Water lines connect, and the other end of the second main comb 12 is connected with 3 input terminal of metering pump, output terminal and the drug discharging tube 10 of metering pump 3
Connection, flowmeter 4 is arranged on drug discharging tube 10, blow-off pipe 8, cleaning pipe 9, the first main comb 11, the second main comb 12 and
Shut-off valve 13 is both provided with drug discharging tube 10, switch board 5 is internally provided with PLC module and frequency converter, temperature sensor 2 and flow
Meter 4 is electrically connected with PLC module and transmits signal to PLC module, and PLC module is conveyed according to temperature sensor 2 and flowmeter 4
Signal passes through Frequency Converter Control metering pump 3.
The present embodiment is provided with overflow port at the top of NaOH solution tank NaOH 1, and overflow port is connected by overflow pipe 7 with pollution discharge pond 14,
Prevent liquid preparation excessive addition in NaOH solution tank NaOH 1.
Metering pump 3 in the present embodiment is diaphragm metering pump, and manual adjustment knob is provided with diaphragm metering pump, is easy to
Control diaphragm metering pump regulating agent dosage with high precision manually.
The present embodiment is additionally provided with check-valves 6 on drug discharging tube 10, and check-valves 6 be located at metering pump 3 and flowmeter 4 it
Between, prevent that liquid preparation flows back in drug discharging tube 10.
The unit that adds in the present embodiment is provided with three, and three add one switch board 5 of units shared, one of to throw
Add unit be used for it is spare, certainly, in practical application, can also set it is multiple add unit, realize to adding a variety of of unit
United application and reserved spare or emergent.
The present embodiment is guarantee equipment operating environment health, and liquid-bearing pan is additionally provided with each bottom for adding unit, with
Easy to collect ejected wash water and devil liquor recovery.
The course of work of the present embodiment is as follows:
The liquid preparation that need to be added is loaded into NaOH solution tank NaOH 1 first, the shut-off valve 13 in blow-off pipe 8 and cleaning pipe 9 is closed, beats
The first main comb 11, the shut-off valve 13 on the second main comb 12 and drug discharging tube 10 are opened, it is sufficient in the liquid preparation for ensureing to add
On the premise of, open metering pump 3, you can add;After metering pump 3 works well, the medicine in drug discharging tube 10 is monitored by flowmeter 4
Agent dosage, temperature sensor 2 monitor the liquid preparation temperature for needing to add in NaOH solution tank NaOH 1, according to temperature sensor 2 and high accuracy
4 monitoring data of mass flowmenter control diaphragm metering pump 3 with regulating agent dosage with high precision or by PLC module manually and
Frequency converter accurately controls driving diaphragm metering pump 3 to ensure the accuracy of added amount of chemical;The temperature sensing set in NaOH solution tank NaOH 1
Device 2 can be realized to link with metering pump 3, i.e., according to 3 operation of liquid preparation temperature control metering pump for needing to add in NaOH solution tank NaOH 1, example
Such as temperature within the specific limits(10-25℃)Then control metering pump 3 works, and then controls metering pump 3 to stop beyond the temperature range
Work;Overflow pipe 7, blow-off pipe 8 and cleaning pipe 9 are set, and shut-off valve 13 is set on all pipelines, easy to daily to NaOH solution tank NaOH
1 operation and maintenance, details are not described herein.
The utility model realize can according to temperature sensor and high-precision mass flowmenter monitoring data manually control every
Film metering pump accurately controlled with regulating agent dosage with high precision or by PLC module and frequency converter driving diaphragm metering pump with
Ensure the accuracy of dosage, greatly reduce reagent cost, and ensure the high quality indicators of final products.
The above is only the preferred embodiment of the utility model patent, it is noted that for the general of the art
For logical technical staff, on the premise of the utility model patent principle is not departed from, some improvements and modifications can also be made, this
A little improvements and modifications also should be regarded as the protection domain of the utility model patent.
Claims (6)
- A kind of 1. high accuracy chemicals dosing plant, it is characterised in that:Including adding unit and switch board, the unit that adds includes solution Tank, metering pump and flowmeter, temperature sensor, the bottom of the NaOH solution tank NaOH and the first main comb are provided with the NaOH solution tank NaOH Wherein one end connects, and the other end of the first main comb connects with wherein one end of blow-off pipe, cleaning pipe and the second main comb respectively Logical, the other end of the blow-off pipe is connected with pollution discharge pond, and the other end of the cleaning pipe is connected with outside clear water pipeline, and described the The other end of two main combs is connected with metering pump input terminal, and the output terminal of the metering pump is connected with drug discharging tube, the flowmeter It is arranged on drug discharging tube, the blow-off pipe, cleaning pipe, the first main comb, be both provided with the second main comb and drug discharging tube and cut Only valve, the switch board are internally provided with PLC module and frequency converter, and the temperature sensor and flowmeter are electrically connected with PLC module Lead to and transmit signal to PLC module, the PLC module passes through frequency converter according to the signal that temperature sensor and flowmeter convey Control metering pump.
- 2. a kind of high-precision chemicals dosing plant according to claim 1, it is characterised in that the top of the NaOH solution tank NaOH is set There is overflow port, the overflow port is connected by overflow pipe with pollution discharge pond.
- 3. a kind of high-precision chemicals dosing plant according to claim 1, it is characterised in that the metering pump is metering diaphragm Pump, and it is provided with manual adjustment knob on the diaphragm metering pump.
- 4. a kind of high-precision chemicals dosing plant according to claim 1, it is characterised in that be additionally provided with the drug discharging tube Check-valves, and the check-valves is between metering pump and flowmeter.
- A kind of 5. high-precision chemicals dosing plant according to claim 1, it is characterised in that it is described add unit be provided with it is more It is a, it is the multiple to add one switch board of units shared.
- A kind of 6. high-precision chemicals dosing plant according to claim 1 or 5, it is characterised in that the bottom for adding unit Portion is provided with liquid-bearing pan.
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CN201721198620.6U CN207307781U (en) | 2017-09-19 | 2017-09-19 | A kind of high accuracy chemicals dosing plant |
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CN201721198620.6U CN207307781U (en) | 2017-09-19 | 2017-09-19 | A kind of high accuracy chemicals dosing plant |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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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2017
- 2017-09-19 CN CN201721198620.6U patent/CN207307781U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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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