CN206494779U - A kind of automatic liquid feeder - Google Patents

A kind of automatic liquid feeder Download PDF

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Publication number
CN206494779U
CN206494779U CN201720074918.XU CN201720074918U CN206494779U CN 206494779 U CN206494779 U CN 206494779U CN 201720074918 U CN201720074918 U CN 201720074918U CN 206494779 U CN206494779 U CN 206494779U
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China
Prior art keywords
liquid
automatic
control system
measuring pump
plc control
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CN201720074918.XU
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Chinese (zh)
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吴强
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DONGGUAN POLAMTER ELECTRICAL AND MECHANICAL EQUIPMENT Co Ltd
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DONGGUAN POLAMTER ELECTRICAL AND MECHANICAL EQUIPMENT Co Ltd
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Abstract

The utility model discloses a kind of automatic liquid feeder, including liquor box, measuring pump, conductivity measuring instrument and PLC control system;Liquor box includes water storage box and corrosion inhibiting and descaling agent case;First fluid input port of measuring pump is arranged in water storage box, and second liquid input is arranged in corrosion inhibiting and descaling agent case, and its fluid output port is connected with default liquid-feeding tube;The probe of conductivity measuring instrument is arranged in default liquid-feeding tube;First signal input part of PLC control system and the signal output part of conductivity measuring instrument are connected, and the signal input part of its first signal output part and measuring pump is connected.The automatic liquid feeder is simple in construction, easy for installation, can substitute this process of manually offeing medicine, and does not interfere with during automatic feeding medicine the normal work of the system;Intelligent level is high, greatlys save human cost;And automatic monitoring in real time can be realized, it is to avoid dosing, which adds water, to be delayed, and the generation of phenomenon such as causes Incrustation of pipe, is corroded.

Description

A kind of automatic liquid feeder
Technical field
The utility model is related to technical field of automation equipment, more particularly to a kind of automatic liquid feeder.
Background technology
It is using water wisely resource, all kinds of heat exchangers are with water as much as possible using the use of circulation in modern industry production Mode, variable dc cooling system is recirculating cooling water system.In such a system, cooling water is not to discharge immediately after, But circulation is reused.Water cools down by cooling tower to carry out again, and part water is passing through cooling tower in cyclic process When be constantly evaporated, thus various mineral matters and ion concentration are also constantly concentrated increase in water, when the concentration of these mineral matters To a certain extent during the above, it will largely separate out and crystallize and be deposited on formation incrustation scale in condenser copper tube, have a strong impact on heat exchange Efficiency, increases power consumption, reduces duration of service.
So in order to maintain various mineral matters and ion concentration stable on certain certain value, it is necessary to supplement a certain amount of to system Fresh water, and discharge a certain amount of condensed water, be generally called sewer.The control of this supplement water and sewer, is manually controlled Be not in time, it is discontinuous and inaccurate.Usual water sampling analysis test, finds index exceeding standard, just notifies moisturizing and blowdown.Cause And causing moisturizing and blowing time delayed, blowdown flow rate is inaccurate, causes to waste.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of automatic liquid feeder, should be certainly Dynamic liquid-adding device is simple in construction, easy for installation, can substitute this process of manually offeing medicine, and will not during automatic feeding medicine Influence the normal work of the system;Intelligent level is high, greatlys save human cost;And can realize automatic monitoring in real time, Avoid dosing from adding water to delay, the generation of phenomenon such as cause Incrustation of pipe, be corroded.
The purpose of this utility model is realized using following technical scheme:
A kind of automatic liquid feeder, including liquor box, measuring pump, conductivity measuring instrument and PLC control system;The solution Case includes water storage box and corrosion inhibiting and descaling agent case;First fluid input port of the measuring pump is arranged in the water storage box, and second Fluid input port is arranged in the corrosion inhibiting and descaling agent case, and its fluid output port is connected with default liquid-feeding tube;The electrical conductivity is surveyed The probe for determining instrument is arranged in the default liquid-feeding tube, the electrical conductivity for determining the default liquid feeding liquid in pipe;The PLC First signal input part of control system is connected with the signal output part of the conductivity measuring instrument, its first signal output part with The signal input part connection of the measuring pump.
It is preferred that, in addition to first liquid level gauge;The probe of the first liquid level gauge is arranged in the water storage box, and described The signal output part of one liquid level gauge is connected with the secondary signal input of the PLC control system.
It is preferred that, in addition to second liquid level gauge;The probe of the second liquid level gauge is arranged in the corrosion inhibiting and descaling agent case, The signal output part of the second liquid level gauge is connected with the 3rd signal input part of the PLC control system.
It is preferred that, speed governing knob is provided with the measuring pump.
It is preferred that, the PLC control system is provided with control display panel;Power supply is provided with the control display panel Indicator lamp, liquid feeding relay indicating light, liquid feeding stop indicator lamp, electrical conductivity display screen, liquid level display screen and time setting unit.
It is preferred that, the PLC control system also includes work switching push button, liquid feeding start button and liquid feeding stop button, The work switching push button can be manual, automatic and stop switching between these three states.
It is preferred that, in addition to frame, the liquor box is arranged in the frame;The measuring pump is arranged on the solution The top surface of case.
Compared with prior art, the beneficial effects of the utility model are:
(1) automatic liquid feeder provided by the utility model, water will be handled by being mainly used in air-conditioning duct and other correlations In the automatic monitoring and regulation and control of matter.For example, measuring pump connects with air-conditioning duct, using cooling circulating water relative hardness with The corresponding relation of conductivity value, the changing value of circulation water conductivity is measured by conductivity measuring instrument, then the electrical conductivity measured is anti- Feed PLC control system, the work of measuring pump is controlled by PLC control system, so that the hardness of recirculated water is controlled automatically at In the range of setting.When the actual measured value of electrical conductivity exceedes setting value, water will be automatically replenished, it is to avoid add water manually Trouble, saves time and human cost.In addition, the device can be realized pair plus corrosion inhibiter is added automatically controls, work as recirculated water Electrical conductivity when being less than setting value, device can effectively evenly control measuring pump toward corrosion inhibiting and descaling agent is conveyed in pipeline, make to follow Drug concentration stability contorting in ring water within the specific limits, to ensure the good result of water process, so as to slow down equipment, pipeline Corrosion, reach extension main frame service life purpose.
Brief description of the drawings
The schematic diagram for the automatic liquid feeder that Fig. 1 is provided by the utility model embodiment;
In figure:10th, water storage box;11st, corrosion inhibiting and descaling agent case;20th, conductivity measuring instrument;30th, measuring pump;40th, the first liquid level Meter;50th, second liquid level gauge;60th, liquid-feeding tube is preset;70th, display panel is controlled;80th, frame.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further:
As shown in figure 1, a kind of automatic liquid feeder, including liquor box, measuring pump 30, conductivity measuring instrument 20 and PLC controls System processed;The liquor box includes water storage box 10 and corrosion inhibiting and descaling agent case 11;First fluid input port of measuring pump 30 is arranged on In water storage box 10, second liquid input is arranged in corrosion inhibiting and descaling agent case 11, and its fluid output port connects with default liquid-feeding tube 60 It is logical;The probe of conductivity measuring instrument 20 is arranged in default liquid-feeding tube 60;First signal input part of the PLC control system with The signal output part connection of conductivity measuring instrument 20, its first signal output part is connected with the signal input part of measuring pump 30.
In order to preferably monitor the capacity of liquid in liquor box, it is ensured that the job security of whole system, the automatic liquid-feeding Device also includes first liquid level gauge 40;The probe of first liquid level gauge 40 is arranged in water storage box 10, the signal of first liquid level gauge 40 Output end is connected with the secondary signal input of the PLC control system;In addition, also including second liquid level gauge 50;Second liquid level The probe of meter 50 is arranged in corrosion inhibiting and descaling agent case 11, the signal output part of second liquid level gauge 50 and the PLC control system 3rd signal input part is connected.By liquid level gauge, the level condition in liquor box is monitored at any time and PLC controls system is fed back in time System, to remind user to supplement related reagent in time.
As preferred scheme, speed governing knob is provided with measuring pump 30, metering can be adjusted by the speed governing knob The transfusion speed of pump 30.
In addition, the work in order to preferably monitor the automatic liquid feeder, the PLC control system is provided with control display Panel 70;Power supply indicator, liquid feeding relay indicating light, liquid feeding, which are provided with, on control display panel 70 stops indicator lamp, electrical conductivity Display screen, liquid level display screen and time setting unit.By indicator lamp, user is known that the work shape of the automatic liquid feeder State;Passage time setting apparatus, the time that user can first set, system just daily dosing at regular time and quantity;Pass through electrical conductivity Display screen, user can know clearly the water quality condition of pipeline interior circulation water, facilitate user to observe water quality situation at any time;It is logical Liquid level display screen is crossed, user can know the level condition of liquor box in time, related reagent is supplemented in time, it is to avoid because lacking Decoction and damage plus measuring pump 30.
On the other hand, the PLC control system also stops pressing including work switching push button, liquid feeding start button and liquid feeding Button, the work switching push button can be manual, automatic and stop switching between these three states.
Meanwhile, the automatic medicine adding apparatus is rational in infrastructure, compact in design, and it also includes frame 80, and the liquor box is arranged on In frame 80;Measuring pump 30 is arranged on the top surface of the liquor box.
When with the automatic liquid feeder, specific operating instruction is as follows:
1st, 220V/AC power supplys are connected, air switch is closed;
2nd, power supply indicator is lighted, and to check in medicament barrel whether there is medicament before operation;
3rd, (test-run a machine) is manually operated:" third gear switch " is beaten to manual position, " liquid feeding start button " is pressed and now measures Pump startup, (medicament on probation of certain capacity should be housed before test-run a machine in chemical tank), during test-run a machine, it should which the exhaust of dosing is revolved Rotary valve is opened, until see having after liquid discharge, then rotary valve is closed, until see have liquid brought out from outlet pipe come after Test-run a machine is calculated to complete;
5th, (operation) automatic running:" third gear switch " is beaten to automated location, system enters Automatic Dosing program.
The automatic medicine adding apparatus that the utility model embodiment is provided, by monitoring the electrical conductivity of recirculated water in real time, and is changed It is counted as cycles of concentration (calculating the amount for requiring supplementation with water);Liquid level gauge is installed, PLC control system is according to liquid level gauge in liquor box Data, automatically control the running of measuring pump, so as to control to supplement the water of water, PLC control system is according to the program of setting, knot The actual running situation of circulation is closed to instruct to add water, the process of adding medicine, complete whole control process.
Wherein, the cycles of concentration of recirculated cooling water refers to that the salt content of the recirculated water supplements the ratio between water salt content with it.Carry High concentration multiple, can reduce the consumption of supplement water, using water wisely;Blowdown flow rate can be also reduced, the pollution to environment is reduced and gives up The treating capacity of water, reduces cost for wastewater treatment.But, cycles of concentration is too high, can make what the hardness, basicity and turbidity of recirculated water rose It is too high, the fouling tendency increase of water;Corrosive ion (CL in water-And SO4 2-) corrosive substance (H2S、SO2、NH3) content increase Plus, the corrosivity enhancing of water.Therefore, the cycles of concentration of cooling water is not higher better.When bringing up to more than 8 times, water saving Effect is not just obvious, and general cycles of concentration control is at 4-7 times when using water treatment agent, and water-saving amount accounts for internal circulating load per hour 0.40%, cycles of concentration is accurately controlled, a set of full-automatic device need to be set to implement.In addition, by controlling cycles of concentration, Ca can be prevented2+、Mg2+Ion forms incrustation scale in condenser copper tube, keeps the normal cooling effect of condenser, reaches economize on electricity Purpose.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of the utility model claim Within the scope of.

Claims (7)

1. a kind of automatic liquid feeder, it is characterised in that control system including liquor box, measuring pump, conductivity measuring instrument and PLC System;
The liquor box includes water storage box and corrosion inhibiting and descaling agent case;
First fluid input port of the measuring pump is arranged in the water storage box, and second liquid input is arranged on the inhibition In antisludging agent case, its fluid output port is connected with default liquid-feeding tube;
The probe of the conductivity measuring instrument is arranged in the default liquid-feeding tube;
First signal input part of the PLC control system is connected with the signal output part of the conductivity measuring instrument, and it first Signal output part is connected with the signal input part of the measuring pump.
2. automatic liquid feeder according to claim 1, it is characterised in that also including first liquid level gauge;First liquid The probe of position meter is arranged in the water storage box, and the of the signal output part of the first liquid level gauge and the PLC control system Binary signal input is connected.
3. automatic liquid feeder according to claim 1, it is characterised in that also including second liquid level gauge;Second liquid The probe of position meter is arranged in the corrosion inhibiting and descaling agent case, and the signal output part of the second liquid level gauge controls system with the PLC The 3rd signal input part connection of system.
4. automatic liquid feeder according to claim 1, it is characterised in that speed governing knob is provided with the measuring pump.
5. automatic liquid feeder according to claim 1, it is characterised in that it is aobvious that the PLC control system is provided with control Show panel;Power supply indicator, liquid feeding relay indicating light, liquid feeding are provided with the control display panel and stops indicator lamp, conductance Rate display screen, liquid level display screen and time setting unit.
6. automatic liquid feeder according to claim 5, it is characterised in that the PLC control system is also cut including work Change button, liquid feeding start button and liquid feeding stop button, the work switching push button can it is manual, automatic and stop this three Switched between individual state.
7. automatic liquid feeder according to claim 1, it is characterised in that also including frame, the liquor box is arranged on In the frame;The measuring pump is arranged on the top surface of the liquor box.
CN201720074918.XU 2017-01-19 2017-01-19 A kind of automatic liquid feeder Active CN206494779U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720074918.XU CN206494779U (en) 2017-01-19 2017-01-19 A kind of automatic liquid feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720074918.XU CN206494779U (en) 2017-01-19 2017-01-19 A kind of automatic liquid feeder

Publications (1)

Publication Number Publication Date
CN206494779U true CN206494779U (en) 2017-09-15

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Application Number Title Priority Date Filing Date
CN201720074918.XU Active CN206494779U (en) 2017-01-19 2017-01-19 A kind of automatic liquid feeder

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112206972A (en) * 2020-10-16 2021-01-12 深圳赛意法微电子有限公司 Immersion device for automatic liquid addition, plastic product production equipment and waste treatment equipment
CN113310881A (en) * 2021-05-11 2021-08-27 中国第一汽车股份有限公司 Automatic sodium chloride corrosive liquid supplementing equipment and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112206972A (en) * 2020-10-16 2021-01-12 深圳赛意法微电子有限公司 Immersion device for automatic liquid addition, plastic product production equipment and waste treatment equipment
CN113310881A (en) * 2021-05-11 2021-08-27 中国第一汽车股份有限公司 Automatic sodium chloride corrosive liquid supplementing equipment and method

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