CN204874060U - Water purifier with quality of water regulatory function - Google Patents

Abstract

The utility model provides a water purifier with the function of water quality adjustment, which includes a water pump, a water purification unit and a water quality adjustment unit; wherein: the main pipeline of raw water is connected with the water purification unit through the water pump; the water purification unit It is a composite membrane treatment structure; the water quality adjustment unit is connected with the water purification unit. By setting the secondary membrane in the water purifier, under the premise that there is a large difference in the raw water quality, the water quality of the water purifier is provided to ensure that the water produced by the water purifier reaches the level of healthy drinking water.

Description

A water purifier with water quality regulating function

technical field

The utility model relates to the field of water treatment, in particular to a water purifier with the function of regulating water quality.

Background technique

The water quality of tap water has the characteristics of diversity. Taking my country as an example, the tap water in the north where groundwater is the main source has the characteristics of hard water quality, calcium and magnesium ions and scale content, while the tap water in the south where the surface water is the main source. It is relatively soft, but contains relatively more impurities, microorganisms, etc., and in addition to the above-mentioned large-scale differences in the water quality between the north and the south, even the water quality in the same region or the same city often has large differences.

The primary key to drinking water is safety, but on the basis of safe drinking water, healthy drinking water must be further considered.

The current water purifiers mainly include reverse osmosis RO pure water machine series (mainly) with high filtration accuracy, nanofiltration machine series (secondary) that retain some minerals in water, and ultrafiltration UF, activated carbon and other series water purifiers. The filtration accuracy of the water device is relatively fixed. For example, the filtration accuracy of the reverse osmosis RO pure water machine is about 95%. It is mainly suitable for areas with high TDS of tap water, such as Wuhouqi, Inner Mongolia. When the area is low, the water produced is too pure, and drinking too clean pure water for a long time will cause potential harm to the body. The filtration accuracy of the nanofiltration machine series is slightly lower (about 70-80%). Compared with the reverse osmosis RO pure water machine, its application range is relatively wider. The TDS of the produced water is also a little too low, which, like the RO machine, cannot adapt well to the difference in water quality.

How to make the water purifier better adapt to the differences or even the large differences between the water quality in various places, no matter for the consumers, or the producers and sellers, it is a technical problem that needs to be solved urgently.

Utility model content

In view of this, the utility model provides a water purifier with the function of regulating water quality, aiming to make the water purifier applicable to a wider range of tap water quality.

The technical scheme that the utility model adopts is specifically:

A water purifier with water quality adjustment function, including a water pump, a water purification unit and a water quality adjustment unit; wherein: the main pipeline of raw water is connected to the water purification unit through the water pump; the water purification unit is a composite membrane A treatment structure; the water quality adjustment unit is connected to the water purification unit.

In the above-mentioned water purifier with water quality adjustment function, the composite membrane treatment structure includes a parallel main membrane unit and an auxiliary membrane unit, and the water inlet ends of the main membrane unit and the auxiliary membrane unit are jointly connected to the water pump. Water outlet, the water production end of the main membrane unit and the auxiliary membrane unit are connected to the TDS probe and then connected to the water purification faucet, and the waste water ends of the main membrane unit and the auxiliary membrane unit pass through the first waste water pen respectively It is connected to the waste water outlet together with the second waste water pen, and the water quality adjustment unit is connected with the secondary membrane unit.

In the above-mentioned water purifier with water quality adjustment function, the water quality adjustment unit includes a water quality adjustment gear, a solenoid valve and a TDS probe, the water quality adjustment gear is connected to the secondary membrane unit through the electromagnetic valve, and the electromagnetic The valve is placed at the water inlet front of the auxiliary membrane unit, and the TDS probe is connected to the water production end of the main membrane unit and the auxiliary membrane unit.

In the above-mentioned water purifier with water quality regulating function, it also includes an anti-backflow one-way valve group, and the one-way valve group includes a first one-way valve and a second one-way valve, and the first one-way valve is located at Between the first waste water pen and the waste water outlet, the second one-way valve is set between the secondary membrane unit and the clean water faucet.

In the above-mentioned water purifier with the function of regulating water quality, the main membrane unit is one or multiple reverse osmosis filter elements or nanofiltration filter elements connected in parallel.

In the above-mentioned water purifier with the function of regulating water quality, the secondary membrane unit is an ultra-microfiltration membrane or a nanofiltration membrane filter element.

The beneficial effects that the utility model produces are:

The water purifier of the present utility model proposes the concept of primary and secondary membranes, that is, the water quality of the water produced by the water purifier is adjusted by setting secondary membranes in the water purifier. When the TDS value of tap water is low, the water purifier can be used The secondary membrane is used to adjust the TDS of the water produced by the main membrane to ensure that there are appropriate minerals in the water produced by the water purifier. The water purifier has a wider scope of application for tap water quality, especially for areas with low tap water TDS values like southern regions. Realized that the water purifier can reach the standard of healthy drinking water under different water quality conditions.

Description of drawings

The present invention is more fully and better understood when considered in conjunction with the accompanying drawings. The drawings described here are used to provide a further understanding of the utility model, and the embodiments and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model.

Fig. 1 is a structural schematic diagram of a water purifier with water quality regulating function of the present invention.

In the figure: 1, main pipeline 2, water pump 3, solenoid valve 4, main membrane unit 5, secondary membrane unit 6, first waste water pen 7, second waste water pen 8, first one-way valve 9, second one-way valve 10. Water purification faucet 11. Water quality adjustment gear 12. TDS probe.

Detailed ways

The technical solution of the present utility model will be described in further detail below in conjunction with the accompanying drawings and embodiments.

A kind of water purifier with water quality regulating function as shown in Figure 1 mainly comprises water pump 2, electromagnetic valve 3, water purifying part, waste water pen (6,7), water quality regulating gear 11 and TDS probe 12; Wherein:

The water purification unit includes a parallel main membrane unit 4 and an auxiliary membrane unit 5, and the main pipeline 1 connected to tap water (raw water) is connected to the water purification unit through a water pump 2, that is, the water inlet ends of the main and auxiliary membrane units (4, 5) Commonly connected to the water outlet of the water pump 1, the solenoid valve 3 is placed at the water inlet front end of the secondary membrane unit 5, the water quality adjustment gear 11 is connected to the solenoid valve 3, and the water production ends of the main and secondary membrane units (4, 5) are connected to clean water The faucet 10, the concentrated water ends of the main and secondary membrane units (4, 5) are provided with waste water pens (6, 7) respectively, and the water end of the produced water is provided with a TDS probe for detecting the TDS value of the produced water.

Due to the small amount of water in the secondary membrane unit 5, in order to prevent the reverse flow of the secondary membrane unit 5 at the water production end and concentrated water end, a one-way valve is respectively provided between the waste water pen 7 and the waste water outlet, and between the water production end and the clean water faucet 10 (8, 9).

According to the difference of tap water quality, the standard of healthy drinking water is achieved by adjusting the gear position of the water quality adjustment gear 11 . For example: the TDS value of tap water in Guangdong and Shenzhen is about 100ppm. Taking the main membrane unit 4 as a nanofiltration membrane (filtration accuracy is about 70%) as an example, the TDS of the produced water is 30ppm, and the TDS value is slightly lower. At this time, the TDS probe will The electromagnetic valve 3 is activated by sending a signal, and the level of TDS of the produced water can be adjusted by adjusting the water quality adjustment gear 11, so that the water purifier can calmly cope with changes in water quality in various places.

According to the actual raw water quality, the number, type and size of membrane filter elements can be adjusted. As a preference, the main membrane unit 4 is composed of one or more parallel reverse osmosis or nanofiltration filter elements, and the auxiliary membrane unit 5 can be Miniature ultra-microfiltration membranes or nanofiltration membranes with no desalination or low desalination rate membrane filter elements (the desalination rate of the filter element is less than 90% under the standard test, and membrane filter elements with a desalination rate of 0%, 10% or 30% are preferred) .

The water purifier of the utility model avoids that the TDS of the produced water is too low when the water quality TDS of the raw water (tap water) is not high, and ensures that within the water quality range of a relatively large TDS, the effluent treated by the water purifier can reach the level of healthy drinking water level.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, and the accompanying drawings here are used to provide further understanding of the present utility model. Apparently, the above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art can easily think of it without actually departing from the present utility model. New changes or replacements are also included in the protection scope of the present utility model.

Claims (4)

1. there is a water purifier for water quality regulation function, it is characterized in that, comprise water pump, water purification portion and water quality regulation unit; Wherein:

The main pipeline of tap water is connected with described water purification portion by described water pump;

Described water purification portion is combined film process structure;

Described water quality regulation unit is connected with described water purification portion; Particularly:

Described combined film process structure comprises main film unit in parallel and secondary film unit, the feed-water end of described main film unit and described secondary film unit is connected to the water outlet of water pump jointly, the product water end (W.E.) of described main film unit and described secondary film unit is connected to clear water faucet jointly, the waste water end of described main film unit and described secondary film unit is connected to wastewater outlet jointly respectively by the first waste water pen and the second waste water pen, and described water quality regulation unit is connected with described secondary film unit;

Described water quality regulation unit comprises water quality regulation shelves, magnetic valve and TDS probe, described water quality regulation shelves are connected with described secondary film unit by described magnetic valve, described magnetic valve is placed in the water inlet front end of described secondary film unit, and described TDS probe is connected to the product water end (W.E.) of described main film unit and described secondary film unit.

2. the water purifier with water quality regulation function according to claim 1, it is characterized in that, also comprise the check valve group of Visible Counterflow, described check valve group comprises the first check valve and the second check valve, described first check valve is located between the first waste water pen and wastewater outlet, and described second check valve is located between described secondary film unit and clear water faucet.

3. the water purifier with water quality regulation function according to claim 1, is characterized in that, described main film unit is branched reverse osmosis filter core or the nanofiltration filter core of one or parallel connection.

4. the water purifier with water quality regulation function according to claim 1, is characterized in that, described secondary film unit is supermicro filtration membrane or nanofiltration membrane filter core.