CN204310889U - A kind of reverse osmosis water purification machine with Water quality detector - Google Patents

Abstract

The utility model provides a reverse osmosis pure water machine with a water quality detector, which belongs to the technical field of water production. It solves the problem that the existing reverse osmosis pure water machine cannot detect the water quality, which leads to waste of equipment and water resources. The PP cotton filter, water inlet solenoid valve, booster pump, granular activated carbon filter and reverse osmosis membrane filter of this reverse osmosis pure water machine with water quality detector are connected in sequence. There is a water quality detector 1 between them, the waste water end of the reverse osmosis membrane filter is connected with the waste water solenoid valve through the diverter valve, the water inlet end of the check valve 1 is connected with the water outlet end of the diverter valve, and the water outlet end of the check valve 1 is connected with the particles The pipeline between the activated carbon filter and the water quality detector 1 is connected, the pure water end of the reverse osmosis membrane filter is connected with the water quality detector 2, and a rear activated carbon filter and a water outlet faucet are sequentially arranged on the water outlet. The reverse osmosis pure water machine has the advantages of high precision in detecting water quality and will not cause waste of equipment and water resources.

Description

A reverse osmosis pure water machine with a water quality detector

technical field

The utility model belongs to the technical field of water production and relates to a reverse osmosis pure water machine, in particular to a reverse osmosis pure water machine with a water quality detector.

Background technique

The reverse osmosis pure water machine is a device that integrates microfiltration, adsorption, ultrafiltration, reverse osmosis, ultraviolet sterilization, ultra-purification and other technologies to directly convert tap water into ultra-pure water, which can be directly drunk after conversion.

The reverse osmosis pure water machine is a relatively mature pure water manufacturing technology. The existing reverse osmosis pure water machine, for example, the Chinese patent literature discloses the reverse osmosis pure water machine [application number: 201120070355.X; authorized announcement number: CN201952301U ], which in turn includes the connected PP cotton filter, granular activated carbon filter, compressed activated carbon filter, booster pump, reverse osmosis filter, the wastewater outlet of the reverse osmosis filter is connected to the wastewater ratio adjustment device, and the pure water outlet is connected to the Between the rear activated carbon filter and the water storage pressure barrel, the water inlet end of the booster pump is connected with a cold water faucet.

The reverse osmosis pure water machine has a wide range of applications and can be used all over the country. The above-mentioned reverse osmosis pure water machine is simple and reasonable in design and saves electricity. However, the reverse osmosis pure water machine with this structure lacks a water quality detector to detect the water quality. , due to the different water quality in different parts of the country, the water quality of the same reverse osmosis pure water machine used in different places will have obvious differences. The water quality obtained is poor, and in areas with few soluble substances in the water and good water quality, because the same equipment configuration is used, the same amount of low-concentration raw water is removed, which has a great impact on equipment and water resources. waste.

Contents of the invention

The purpose of this utility model is to provide a reverse osmosis pure water machine with a water quality detector for the above-mentioned problems in the prior art. The water quality detector is used to detect the water quality of the fluid in the reverse osmosis pure water machine, so that the The pure water machine produces qualified pure water without wasting equipment.

The purpose of this utility model can be achieved through the following technical solutions: a reverse osmosis pure water machine with a water quality detector, including a PP cotton filter, a water inlet solenoid valve, a booster pump, a granular activated carbon filter and a reverse osmosis membrane filter The device is characterized in that the PP cotton filter, the water inlet solenoid valve, the booster pump, the granular activated carbon filter and the reverse osmosis membrane filter are connected in sequence, and the granular activated carbon filter and the reverse osmosis membrane filter are arranged There is a water quality detector one, and the waste water end of the reverse osmosis membrane filter is connected with a waste water solenoid valve through a diverter valve, and a check valve one is arranged between the granular activated carbon filter and the diverter valve, and the check valve one The water inlet end is connected with the water outlet end of the diverter valve, the water outlet end of the check valve one is connected with the pipeline between the granular activated carbon filter and the water quality detector one, and the pure water end of the reverse osmosis membrane filter is connected with Check valve 2 and water quality detector 2. The downstream of the water quality detector 2 is divided into a water storage path and a water outlet path. The end of the water storage path is connected to a water storage pressure tank, and a post activated carbon filter is arranged in turn on the water outlet path. appliances and faucets.

When the reverse osmosis pure water machine is running, the water quality detector 2 detects that the effluent of the pure water end contains less dissolved substances, that is, when the TDS value of the effluent water quality is low, adjust the ratio of the diverter valve to make the reverse osmosis membrane filter waste water More of the water at the end flows back into the pipeline between the granular activated carbon filter and the water quality detector 1 through the check valve 1, and if the backflow part is increased, the detection value of the water quality detector 1 increases, and at the same time, the detection value of the water quality detector 2 also increases. When the value detected by the water quality detector 2 is close to the set critical value, within the critical value, the water quality of the pure water outlet is guaranteed to be qualified, the diverter valve is fixed, and the reverse osmosis pure water machine works according to this state, which will not cause equipment, water Waste of resources; when the water quality detector 2 detects that the effluent at the pure water end contains more dissolved substances, that is, when the TDS value of the effluent water quality is too high, adjust the ratio of the diverter valve to make the water at the wastewater end of the reverse osmosis membrane filter less Through the check valve 1, it flows back into the pipeline between the granular activated carbon filter and the water quality detector 1, and if the backflow part is reduced, the detection value of the water quality detector 1 decreases, and at the same time, the detection value of the water quality detector 2 also decreases. When the water quality detector 2 When the detected value is close to the critical value, the diverter valve is fixed, and the reverse osmosis pure water machine works according to this state to ensure that the water quality of the pure water outlet is qualified.

In the aforementioned reverse osmosis pure water machine with a water quality detector, a high pressure switch is arranged between the water quality detector 2 and the water storage pressure tank, and the high pressure switch is located in the water storage path. The high pressure switch controls the storage and discharge of fluid in the water storage pressure tank.

In the above-mentioned reverse osmosis pure water machine with a water quality detector, the first water quality detector, the second water quality detector, the high pressure switch, the diverter valve, the water inlet solenoid valve and the waste water solenoid valve are all connected to the controller through wires. connect. The controller is an ordinary PLC controller, using electric control, quick response and high sensitivity, and the values detected by water quality detector 1 and water quality detector 2 can be timely and accurately reflected in the controller, so that the controller can be timely and Precisely adjust the diverter valve to ensure that the water quality of the pure water outlet is qualified, and use the controller to electronically control the opening and on-off of the high-pressure switch, water inlet solenoid valve and waste water solenoid valve, with high control accuracy.

In the aforementioned reverse osmosis pure water machine with a water quality detector, a water outlet valve is arranged between the post activated carbon filter and the water outlet tap. The water outlet valve is set in the water outlet channel to provide double protection. According to actual needs, the water outlet valve can be opened or closed to avoid waste.

In the above-mentioned reverse osmosis pure water machine with a water quality detector, a flow meter is arranged between the water quality detector 2 and the post activated carbon filter, and the flow meter is located on the water outlet. The flowmeter calculates the flow velocity of the fluid on the water outlet of the pure water end. When the flow velocity detected by the flowmeter drops to a critical value, it means that one or more of the PP cotton filter, granular activated carbon filter and reverse osmosis membrane filter are stuck. If excessive rust, sediment, colloid and other pollutants are removed, one, two or three of the filter elements need to be replaced to ensure the water production efficiency of the reverse osmosis pure water machine.

Compared with the prior art, the reverse osmosis pure water machine with water quality detector provided by the utility model has the following advantages:

1. The reverse osmosis pure water machine is equipped with a water quality detector between the granular activated carbon filter and the reverse osmosis membrane filter. A water quality detector is installed downstream of the pure water end of the reverse osmosis membrane filter. Water quality detector 1 and water quality detection The second device detects the water quality of the fluid flowing through it. When the water quality detector 2 detects that the effluent from the pure water end contains less dissolved substances, it automatically adjusts the diverter valve to increase the return part of the waste water end; when the water quality detector 2 detects that the pure water The effluent water at the outlet end contains more dissolved substances, and the diverter valve is automatically adjusted to reduce the backflow part at the waste water end, so that the water quality of the fluid flowing out of the outlet faucet is always qualified and will not cause waste of equipment and water resources.

2. The water quality detector pair of this reverse osmosis pure water machine detects the water quality of the fluid that will flow into the reverse osmosis membrane filter, and compares it with the data detected by the water quality detector 2, and it can be seen intuitively that the water quality detector First, whether the water quality detector is damaged or not, it is convenient to replace in time, and the detection accuracy is high.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the reverse osmosis pure water machine with a water quality detector.

In the figure, 1. PP cotton filter; 2. Inlet solenoid valve; 3. Booster pump; 4. Granular activated carbon filter; 5. Reverse osmosis membrane filter; 51. Waste water end; 52. Pure water end; 6 1. Water quality detector 1; 7. Diverter valve; 8. Waste water solenoid valve; 9. Check valve 1; 10. Check valve 2; 11. Water quality detector 2; Water storage pressure tank; 15. Rear activated carbon filter; 16. Water outlet tap; 17. High pressure switch; 18. Water outlet valve; 19. Flow meter.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Figure 1, the reverse osmosis pure water machine with water quality detector includes PP cotton filter 1, water inlet solenoid valve 2, booster pump 3, granular activated carbon filter 4, reverse osmosis membrane filter 5, water quality detection Device one 6, diverter valve 7, wastewater solenoid valve 8, check valve one 9, check valve two 10, water quality detector two 11, water storage pressure tank 14, rear activated carbon filter 15, water outlet faucet 16, high pressure switch 17 and water outlet valve 18.

PP cotton filter 1, water inlet solenoid valve 2, booster pump 3, granular activated carbon filter 4 and reverse osmosis membrane filter 5 are connected in sequence, and a water quality test is installed between the granular activated carbon filter 4 and reverse osmosis membrane filter 5 Device one 6, the waste water end 51 of reverse osmosis membrane filter 5 is connected with waste water solenoid valve 8 by shunt valve 7, is provided with check valve-9 between granular activated carbon filter 4 and shunt valve 7, and check valve-9 The water inlet is connected to the water outlet of the diverter valve 7, and the water outlet of the check valve-9 is connected to the pipeline between the granular activated carbon filter 4 and the water quality detector-6. In the present embodiment, the pipeline is made of PE pipe. In actual production, the pipeline may also be a metal tube made of copper. The pure water end 52 of the reverse osmosis membrane filter 5 is connected with a check valve 2 10 and a water quality detector 11 in sequence, and the downstream of the water quality detector 2 11 is divided into a water storage path 12 and an outlet water path 13, and a high pressure switch is arranged in the water storage path 12 17. The end of the water storage path 12 is connected to a water storage pressure tank 14, and the high pressure switch 17 controls the storage and discharge of fluid in the water storage pressure tank 14. A flow meter 19 , a rear activated carbon filter 15 , a water outlet valve 18 and a water outlet faucet 16 are sequentially arranged on the outlet channel 13 .

Water quality detector one 6, water quality detector two 11, high pressure switch 17, shunt valve 7, flowmeter 19, water inlet solenoid valve 2 and waste water solenoid valve 8 are all connected electrically with controller by electric wire, the control in the present embodiment The controller is a PLC controller, which can be purchased in the hardware market. Use the PLC controller to read the data in the water quality detector 1 6, the water quality detector 2 11 and the flow meter 19, and control the two diverter valves 7 and 7 according to the read data. The flow area of the road is controlled to control the backflow part of the waste water end 51, and at the same time control the opening and on-off of the water inlet solenoid valve 2 and the waste water solenoid valve 8. When the soluble substances in the raw water are very few, the waste water electromagnetic valve 8 can be closed, so that the waste water produced by the waste water end 51 of the reverse osmosis pure water machine can flow back to the granular activated carbon filter 4 and the reverse osmosis membrane filter 5 through the check valve 9. between.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although this paper uses PP cotton filter 1, water inlet solenoid valve 2, booster pump 3, granular activated carbon filter 4, reverse osmosis membrane filter 5, waste water end 51, pure water end 52, water quality detector 1 6. Diverter valve 7, waste water solenoid valve 8, check valve one 9, check valve two 10, water quality detector two 11, water storage path 12, water outlet path 13, water storage pressure tank 14, post activated carbon filter 15, Water outlet faucet 16, high pressure switch 17, water outlet valve 18, flow meter 19 and other terms, but the possibility of using other terms is not excluded. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is against the spirit of the utility model.

Claims (5)

1. A reverse osmosis pure water machine with a water quality detector, including a PP cotton filter (1), a water inlet solenoid valve (2), a booster pump (3), a granular activated carbon filter (4) and a reverse osmosis membrane Filter (5), is characterized in that, described PP cotton filter (1), water inlet solenoid valve (2), booster pump (3), granular activated carbon filter (4) and reverse osmosis membrane filter (5 ) are connected successively, a water quality detector one (6) is provided between the granular activated carbon filter (4) and the reverse osmosis membrane filter (5), and the waste water end (51) of the reverse osmosis membrane filter (5) Be connected with waste water electromagnetic valve (8) by shunt valve (7), be provided with check valve one (9) between shown granular activated carbon filter (4) and shunt valve (7), described check valve one (9) ) is connected to the water outlet of the diverter valve (7), and the water outlet of the check valve one (9) is connected to the pipeline between the granular activated carbon filter (4) and the water quality detector one (6), The pure water end (52) of the reverse osmosis membrane filter (5) is sequentially connected with a check valve two (10) and a water quality detector two (11), and the downstream of the water quality detector two (11) is divided into a water storage path (12) and water outlet (13), the end of described water storage (12) is connected with water storage pressure tank (14), and described water outlet (13) is provided with post activated carbon filter (15) and Out of the tap (16). 2. a kind of reverse osmosis pure water machine with water quality detector according to claim 1, is characterized in that, is provided with high pressure switch ( 17), the high-voltage switch (17) is located in the water storage circuit (12). 3. a kind of reverse osmosis pure water machine with water quality detector according to claim 2, is characterized in that, described water quality detector one (6), water quality detector two (11), high pressure switch (17), The diverter valve (7), the water inlet solenoid valve (2) and the waste water solenoid valve (8) are all electrically connected with the controller through electric wires. 4. A kind of reverse osmosis pure water machine with water quality detector according to claim 1 or 2 or 3, is characterized in that, is provided with between described post activated carbon filter (15) and water outlet tap (16) Water outlet valve (18). 5. A kind of reverse osmosis pure water machine with water quality detector according to claim 1 or 2 or 3, is characterized in that, between described water quality detector two (11) and post activated carbon filter (15) A flow meter (19) is provided, and the flow meter (19) is located on the water outlet (13).