CN103787460A - Reverse osmosis water purifier - Google Patents
Reverse osmosis water purifier Download PDFInfo
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- CN103787460A CN103787460A CN201210434507.9A CN201210434507A CN103787460A CN 103787460 A CN103787460 A CN 103787460A CN 201210434507 A CN201210434507 A CN 201210434507A CN 103787460 A CN103787460 A CN 103787460A
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- detecting unit
- pump
- topping
- reverse osmosis
- water purifier
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Abstract
The invention discloses a reverse osmosis water purifier comprising a booster pump and a main control circuit, and further comprising a detection unit and a control line, wherein an input end of the detection unit is connected on the main control circuit, and an output end of the detection unit is connected on the control line, wherein the detection unit is used for detecting working parameters of the booster pump; the control line is used for, starting and stopping the booster pump according the output end signals of the detection unit. The reverse osmosis water purifier disclosed by the invention replaces pressure control by pump current dynamic control, thus improving control precision and guaranteeing normal operation of a machine.
Description
Technical field
The present invention relates to a kind of reverse osmosis water purifier.
Background technology
Present service water treating product is more and more universal, has greatly improved people's quality of the life.
In the type product; as shown in Figure 1, machine generally comprises with lower member: water supply connector 1, low hydraulic pressure protection switch 2, topping-up pump 3, fore filter 4, throttling set 5, reverse osmosis membrane 6, reverse checkvalve 7, high water switch 8, pressure water storage tank 9 and depotition cock 10.The control circuit of this series products as shown in Figure 3, comprises a power switch 11, a low hydraulic pressure protection switch 2, a high water switch 8, an output relay 14, the contact 18 of an output relay, a topping-up pump winding 17.
Machine is generally in fully automatic working state.Machine is directly connected on tap water pipe line, because water pressure has direct relation before the permeable amount of reverse osmosis membrane 6 and film, therefore, general municipal tap water, need to be by the topping-up pump 3 of a special configuration, more than source water pressure is increased to 0.42MPa, the pure water after being purified by machine, is stored in pressure water storage tank 9, when pressure water storage tank 9 reaches after the requirement of setting pressure, under the control of high water switch 8, topping-up pump 3 quits work, and complete machine is in holding state.
Especially, due to the degree of fouling of tap water not etc., user's water consumption is not etc., the preposition filter core of machine is along with the accumulation of machine work, and the degree of fouling of filter core is more and more heavier, and the pressure drop forming in water circuit system is also progressively strengthening, the variation of pressure reduction and the variation of tap water pressure form stack, the responding value of the low water switch of mechanical type can not adapt to the pressure change of source water, though low water switch can be connected, and in fact the water supply of pump may not enough even have the possibility of cutout.Therefore traditional low water switch does not reach the effect of protection pump-film system sometimes, cannot meet user's use needs yet.
Summary of the invention
The technical problem to be solved in the present invention is that the responding value in order to overcome the low water switch of existing machinery formula can not adapt to pressure change, and a kind of reverse osmosis water purifier is provided, and described reverse osmosis water purifier has adopted brand-new control mode.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of reverse osmosis water purifier, comprise a topping-up pump and a governor circuit, its feature is, described reverse osmosis water purifier also comprises a detecting unit and a control circuit, the input terminus of described detecting unit is connected on described governor circuit, the output terminal of described detecting unit is connected on described control circuit, wherein
Described detecting unit is for detection of the working parameter of described topping-up pump;
Described control circuit, for according to the output end signal of described detecting unit, is controlled described topping-up pump and is opened and close.
Preferably, described detecting unit is for detection of the working current size of described topping-up pump.
Preferably, described detecting unit comprises a resistance, and described resistance is connected on described governor circuit, and the poor output end signal as described detecting unit of described resistance both end voltage outputs to described control circuit.So just, the working current of described topping-up pump can be converted to voltage difference by described resistance, output to described control circuit.
Preferably, described control circuit comprises the output terminal of contact, a comparer, a topping-up pump winding and the described detecting unit of contact, an output relay, an output relay of a power switch, a high water switch, a relay, a relay; Contact and the described output relay of described high water switch, described relay are connected into the first branch road; The output terminal of described detecting unit, described comparer and described relay are connected into the second branch road; The contact of described output relay becomes the 3rd branch road with described topping-up pump windings in series; Described the first branch road, the second branch road and the 3rd branch circuit parallel connection, and connect with described power switch.
Positive progressive effect of the present invention is: by utilization of the present invention; when the situation due to former water supply; can in the working current of topping-up pump, embody; when former water pressure is during lower than a certain threshold values; the corresponding threshold values that obtains topping-up pump electric current; when the electric current that topping-up pump detected is during lower than this threshold values; can assert that former water pressure is inadequate; and and then regard as lack of water; pump is shut down, and increases this circuit control function, and pressure changeable control is the dynamic control of pump electric current; improve control accuracy, guaranteed machine normal operation.
Accompanying drawing explanation
Fig. 1 is the reverse osmosis water purifier water-flow chart schematic diagram of prior art.
Fig. 2 is the reverse osmosis water purifier water-flow chart schematic diagram of preferred embodiment of the present invention.
Fig. 3 is the electric control circuit figure of prior art.
Fig. 4 is the electric control circuit figure of preferred embodiment of the present invention.
Embodiment
Enumerate preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
As shown in Figure 2, the present embodiment comprises with lower member: water supply connector 1, topping-up pump 3, fore filter 4, throttling set 5, reverse osmosis membrane 6, reverse checkvalve 7, high water switch 8, pressure water storage tank 9 and depotition cock 10.Owing to adopting new electronic control method, compare the scheme shown in Fig. 1, deduct low hydraulic pressure protection switch 2.
The present embodiment also comprises a detecting unit and a control circuit, and the input terminus of described detecting unit is connected on described governor circuit, and as shown in Figure 4, the output terminal 19 of described detecting unit is connected on described control circuit.
Described detecting unit is for detection of the working parameter of topping-up pump 3, and in the present embodiment, described detecting unit is for detection of the working current size of described topping-up pump.Implementation is, the resistance of connecting on governor circuit, resistance both sides can produce voltage difference, so just the working current of described topping-up pump can be converted to voltage difference by described resistance, output to described control circuit as the output end signal of described detecting unit.
In the present embodiment, control circuit comprises the output terminal 19 of contact 18, a comparer 15, a topping-up pump winding 17 and the described detecting unit of contact 13, an output relay 14, an output relay of a power switch 11, a high water switch 8, a relay 16, a relay; Contact 13 and the output relay 18 of high water switch 8, relay are connected into the first branch road; Output terminal 19, comparer 15 and the relay 16 of detecting unit are connected into the second branch road; The contact 18 of output relay and topping-up pump winding 17 are connected into the 3rd branch road; Described the first branch road, the second branch road and the 3rd branch circuit parallel connection, and connect with power switch 11.
In the present embodiment, consider that when the former water pressure of topping-up pump 3 changes, the electric current of pump can correspondingly change, particularly when having water and when anhydrous, electric current has obvious abrupt change.Therefore on governor circuit, connect a resistance, in the time that electric current has considerable change, can distinguish by the poor variation of the both end voltage of this resistance, thus the whether judgement of lack of water or pressure of supply water deficiency of the source water of making, and and then the power supply of control circuit to topping-up pump or cut off power supply.Concrete, comparer 15 one end described voltage difference of sampling, the other end is pre-set threshold value, in the time that the working current of topping-up pump 3 is less than rated value, certainly will cause reducing of described voltage difference, in the time that voltage difference is less than pre-set threshold value, relay 16 is by dead electricity, finally, topping-up pump winding 17 dead electricity, topping-up pump 3 quits work.When described voltage difference becomes large, be greater than after pre-set threshold value, topping-up pump 3 can restart work.
Pre-set threshold value can regulate, and can make the pattern regulating by operating panel, and user just can oneself regulate pre-set threshold value like this.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection scope of the present invention.
Claims (4)
1. a reverse osmosis water purifier, comprise a topping-up pump and a governor circuit, it is characterized in that, described reverse osmosis water purifier also comprises a detecting unit and a control circuit, the input terminus of described detecting unit is connected on described governor circuit, the output terminal of described detecting unit is connected on described control circuit, wherein
Described detecting unit is for detection of the working parameter of described topping-up pump;
Described control circuit, for according to the output end signal of described detecting unit, is controlled described topping-up pump and is opened and close.
2. reverse osmosis water purifier as claimed in claim 1, is characterized in that, described detecting unit is for detection of the working current size of described topping-up pump.
3. reverse osmosis water purifier as claimed in claim 1, it is characterized in that, described detecting unit comprises a resistance, and described resistance is connected on described governor circuit, and the poor output end signal as described detecting unit of described resistance both end voltage outputs to described control circuit.
4. the reverse osmosis water purifier as described in claim 1-3 any one, it is characterized in that, described control circuit comprises the output terminal of a power switch, a high water switch, a relay, an output relay, a comparer, a topping-up pump winding and described detecting unit; Contact and the described output relay of described high water switch, described relay are connected into the first branch road; The output terminal of described detecting unit, described comparer and described relay are connected into the second branch road; The contact of described output relay becomes the 3rd branch road with described topping-up pump windings in series; Described the first branch road, the second branch road and the 3rd branch circuit parallel connection, and connect with described power switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434507.9A CN103787460A (en) | 2012-11-02 | 2012-11-02 | Reverse osmosis water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434507.9A CN103787460A (en) | 2012-11-02 | 2012-11-02 | Reverse osmosis water purifier |
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| Publication Number | Publication Date |
|---|---|
| CN103787460A true CN103787460A (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210434507.9A Pending CN103787460A (en) | 2012-11-02 | 2012-11-02 | Reverse osmosis water purifier |
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| CN (1) | CN103787460A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094912A (en) * | 2016-07-29 | 2016-11-09 | 芜湖美的厨卫电器制造有限公司 | Pressurizer, purifying drinking appliance and flux control method for purifying drinking appliance |
| CN106289440A (en) * | 2016-09-12 | 2017-01-04 | 莱克电气绿能科技(苏州)有限公司 | A kind of system being applied to water tank lacks water detection |
| CN108426667A (en) * | 2018-01-10 | 2018-08-21 | 九阳股份有限公司 | A kind of pressure detection method of anti-penetration water purifier |
| CN110342612A (en) * | 2019-08-22 | 2019-10-18 | 广东叮咚净水科技有限公司 | The water shortage detection device of water purifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163791A (en) * | 1996-04-26 | 1997-11-05 | 三星电子株式会社 | Pump control device for water purifier |
| CN1170622A (en) * | 1996-05-28 | 1998-01-21 | 三星电子株式会社 | Pressure pump control apparatus of water purifier |
| JP2005296945A (en) * | 2004-03-19 | 2005-10-27 | Miura Co Ltd | Water quality improving system |
| CN202279759U (en) * | 2011-10-28 | 2012-06-20 | 美的集团有限公司 | Reverse osmosis water purifier |
-
2012
- 2012-11-02 CN CN201210434507.9A patent/CN103787460A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1163791A (en) * | 1996-04-26 | 1997-11-05 | 三星电子株式会社 | Pump control device for water purifier |
| CN1170622A (en) * | 1996-05-28 | 1998-01-21 | 三星电子株式会社 | Pressure pump control apparatus of water purifier |
| JP2005296945A (en) * | 2004-03-19 | 2005-10-27 | Miura Co Ltd | Water quality improving system |
| CN202279759U (en) * | 2011-10-28 | 2012-06-20 | 美的集团有限公司 | Reverse osmosis water purifier |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094912A (en) * | 2016-07-29 | 2016-11-09 | 芜湖美的厨卫电器制造有限公司 | Pressurizer, purifying drinking appliance and flux control method for purifying drinking appliance |
| CN106094912B (en) * | 2016-07-29 | 2023-10-24 | 芜湖美的厨卫电器制造有限公司 | Supercharging device for water purifying and drinking machine, water purifying and drinking machine and flux adjusting method |
| CN106289440A (en) * | 2016-09-12 | 2017-01-04 | 莱克电气绿能科技(苏州)有限公司 | A kind of system being applied to water tank lacks water detection |
| CN108426667A (en) * | 2018-01-10 | 2018-08-21 | 九阳股份有限公司 | A kind of pressure detection method of anti-penetration water purifier |
| CN110342612A (en) * | 2019-08-22 | 2019-10-18 | 广东叮咚净水科技有限公司 | The water shortage detection device of water purifier |
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Application publication date: 20140514 |