CN220845656U - Waterway system capable of adjusting TDS value of discharged water and water purifier - Google Patents

Abstract

The utility model discloses a waterway system and a water purifier capable of adjusting the TDS value of the outlet water, wherein the waterway system comprises a primary filtration main waterway, a plurality of RO filtration branch waterways, a plurality of primary filtration branch waterways, a primary filtration confluent waterway, an RO filtration confluent waterway and an outlet waterway, the RO filtration branch waterway connects the primary filtration main waterway and the RO filtration confluent waterway, the RO filtration confluent waterway is also connected to the outlet waterway, the primary filtration branch waterway connects the front of the RO filter element water inlet end corresponding to the RO filtration branch waterway and the primary filtration confluent waterway, the primary filtration confluent waterway is also connected to the outlet waterway, the primary filtration main waterway is provided with a primary filtration filter element and an inlet TDS detection element, the RO filtration branch waterway is provided with an RO filter element, the outlet waterway is provided with a mixed water TDS detection element, and the primary filtration confluent waterway is provided with a flow regulating valve. The outlet water of the utility model is compatible with purified water containing minerals and having a good taste, and the outlet TDS is adjustable through the cooperation of the TDS detection element and the flow regulating valve.

Description

A water system and water purifier capable of adjusting the TDS value of outlet water

Technical Field

The utility model belongs to the technical field of water purification, and in particular relates to a water system and a water purifier capable of adjusting the TDS value of outlet water.

Background technique

With the continuous development of commercial water purification, people's demand for beverages is increasing. At present, in the field of commercial terminal water purification, the core technologies are membrane filtration, ultrafiltration membrane and RO membrane filtration, which are more popular filtration methods on the market.

Compared with RO membrane, ultrafiltration membrane has lower filtration accuracy. While intercepting harmful substances such as mud, colloids, algae, organic matter, bacteria, etc. in the water, it can retain minerals in the water, which is beneficial to human health. However, its disadvantage is that it cannot reduce the hardness of water, the water tastes poor, and it is easy to scale when boiling water.

The RO membrane has a filtration accuracy of up to 0.0001 microns, which can filter out almost all impurities except water. It removes scale while maintaining the good taste of drinking water. However, the high filtration accuracy also filters out minerals and trace elements that are beneficial to the human body. Long-term drinking by the elderly and children may cause the loss of trace elements in the human body.

At present, many milk tea shops and coffee shops have found that the taste of the finished products made by brewing coffee and mixing milk tea with pure RO water is not as good as the coffee or milk tea made with water containing certain soluble mineral elements. Therefore, it is urgent to study how the water can be compatible with mineral water and have a good taste.

Utility Model Content

In view of the above-mentioned defects, the utility model provides a water system and a water purifier with adjustable outlet TDS value, which can output purified water containing minerals and having a good taste, and can realize electronic adjustment of outlet TDS through a servo solenoid valve.

A water purifier with ultrafiltration backwashing and electronically adjustable outlet TDS value, comprising a primary filtration main waterway, at least two RO filtration branch waterways, at least two primary filtration branch waterways, a primary filtration confluent waterway, an RO filtration confluent waterway and an outlet waterway, wherein the water inlet ends of at least two of the RO filtration branch waterways are connected to the water outlet ends of the primary filtration main waterway and the water outlet ends of at least two of the RO filtration branch waterways are connected to the water inlet end of the RO filtration confluent waterway, the water outlet end of the RO filtration confluent waterway is connected to the water outlet waterway, and at least two The water inlet end of each of the primary filtration branch waterways is connected in front of the water inlet end of the RO filter element of the corresponding RO filtration branch waterway, and the water outlet ends of at least two of the RO primary filtration branch waterways are connected to the water inlet end of the primary filtration confluent waterway, and the water outlet end of the primary filtration confluent waterway is connected to the outlet waterway, wherein the primary filtration main waterway is sequentially provided with a primary filtration filter element and an inlet TDS detection component, the RO filtration branch waterway is provided with an RO filter element, the outlet waterway is provided with a mixed water TDS detection component, and the primary filtration confluent waterway is provided with a flow regulating valve.

Preferably, the water system further comprises a backwash water circuit, wherein the backwash water circuit connects a water outlet end of the primary filter element and a water inlet end of the primary filter element.

Preferably, the primary filter element is an ultrafiltration filter element, the flow regulating valve is a servo solenoid valve, and the RO filtration confluent waterway is provided with the flow regulating valve.

Preferably, the backwash water circuit is provided with a third water inlet solenoid valve, the primary filtration main water circuit is provided with a first solenoid valve in front of the primary filtration filter element, and the third water inlet solenoid valve is connected in front of the first solenoid valve.

Preferably, the water system further comprises a backwash discharge water channel, the water inlet end of which is connected in front of the primary filter element for discharging the backwash water output by the backwash water channel.

Preferably, the water system also includes a wastewater waterway, the wastewater outlet end of the RO filter element is connected to the wastewater waterway through a wastewater solenoid valve, the outlet end of the backwash discharge waterway is connected to the wastewater waterway, and the backwash discharge waterway is provided with a second water inlet solenoid valve.

Preferably, any two or all of the primary filtration confluent waterway, the RO filtration confluent waterway, and the outlet waterway are provided with flowmeters. The flowmeter is used to detect the flow rate to determine whether the servo solenoid valve is operating accurately.

Preferably, the primary filtration confluent waterway, the RO filtration confluent waterway, and the outlet waterway are all provided with a pressure-stabilizing valve.

Preferably, the water outlet waterway is provided with a pressure tank, which can store water, increase the pressure to increase the flow rate, and meet the large flow rate requirements of commercial machines.

A water purifier is based on the above-mentioned water system capable of adjusting the TDS value of the water outlet. The water purifier also includes an outer shell, and an RO filter element, a TDS detection element, and a flow regulating valve are located in the outer shell.

The beneficial effects of the utility model are:

(1) The utility model monitors the inlet TDS and mixed water TDS through the inlet TDS detection component and the mixed water TDS detection component, analyzes the inlet TDS, mixed water TDS and target TDS, and when the mixed water TDS is not within the error range set by the target TDS, adjusts the flow control valve to make the mixed water TDS meet the requirements.

(2) The utility model can mix ultrafiltered water and pure water, and adjust the ratio of ultrafiltered water to pure water through a flow control valve to obtain mixed water that is compatible with minerals and good taste, so as to meet the demand for health and taste of drinking water.

(3) The utility model can effectively reduce the risk of clogging of the primary filter element by backwashing the water channel, reduce the impurities attached to the surface of the primary filter element, and thus increase the service life of the primary filter element.

(4) The utility model is provided with a plurality of RO filtration branch waterways and primary filtration branch waterways, which can achieve large flow filtration and adjust the mixing ratio of water, and can meet the needs of large flow in conjunction with the pressure barrel of the water outlet waterway.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

FIG1 is an overall waterway diagram of an embodiment of the utility model;

FIG. 2 is a backwash water circuit diagram of an embodiment of the utility model.

Reference numerals:

1-Ultrafiltration filter element, 2-Motor, 3-RO filter element, 4-Pressure barrel, 5.1-First water inlet solenoid valve, 5.2-Second water inlet solenoid valve, 5.3-Third water inlet solenoid valve, 5.4-Fourth water inlet solenoid valve, 6-Pressure reducing valve, 7-Pressure stabilizing valve, 8-Servo solenoid valve, 9-Water inlet TDS probe, 10-Mixing water TDS probe, 11-Ultrafiltration water flow meter, 12-Blending water flow meter.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The utility model discloses a water system and a water purifier capable of adjusting the TDS value of effluent water, which can mix ultrafiltration water containing mineral water after being filtered by an ultrafiltration filter element 1 and pure water after being filtered by an RO filter element, and adjust the mixing ratio by a servo solenoid valve to achieve adjustable effluent TDS.

As shown in FIG1 , a water system capable of adjusting the outlet TDS value includes a primary filtration main water channel, two RO filtration branch water channels, two primary filtration branch water channels, a primary filtration confluent water channel, a RO filtration confluent water channel and an outlet water channel, wherein the water inlet ends of the two RO filtration branch water channels are connected to the water outlet end of the primary filtration main water channel and the water outlet ends of the two RO filtration branch water channels are connected to the water inlet end of the RO filtration confluent water channel, the water outlet end of the RO filtration confluent water channel is connected to the outlet water channel, the water inlet ends of the two primary filtration branch water channels are connected in front of the water inlet end of the RO filter element of the corresponding RO filtration branch water channels and the water outlet ends of the two RO primary filtration branch water channels are connected to the water inlet end of the primary filtration confluent water channel, and the water outlet end of the primary filtration confluent water channel is connected to the outlet water channel, wherein the primary filtration main water channel is provided with a primary filtration filter element and an inlet TDS detection component in sequence, the RO filtration branch water channel is provided with an RO filter element, the outlet water channel is provided with a mixed water TDS detection component, and the RO filtration confluent water channel and the primary filtration confluent water channel are both provided with flow regulating valves. As an alternative implementation, the RO filtration confluence waterway may not be provided with a flow regulating valve. When the regional water quality is close to the target water outlet demand value, the primary filtration confluence waterway may be provided with a flow regulating valve and the RO filtration confluence waterway may be provided with a flow regulating valve; when the regional water quality is deviated, the primary filtration confluence waterway may be provided with a flow regulating valve and the RO filtration confluence waterway may not be provided with a flow regulating valve.

It should be noted that the number of RO filtration branch waterways can be set to three or more, which can be set specifically according to needs; the number of primary filtration branch waterways can be set to three or more, which can be set specifically according to needs; after passing through the primary filtration main waterway, part of the water can pass through the RO filtration branch waterways separately, and part of the water can pass through the primary filtration branch waterways separately, and then merge into the RO filtration merged waterway after passing through the RO filtration branch waterways, and then merge into the primary filtration merged waterway after passing through the primary filtration branch waterways, and the RO filtration merged waterway and the primary filtration merged waterway then merge into the outlet waterway.

As shown in Figure 1, the primary filtration main waterway in this embodiment includes a first water inlet solenoid valve 5.1, an ultrafiltration filter element 1 and a fourth water inlet solenoid valve 5.4 connected in sequence. When the first water inlet solenoid valve 5.1 is turned on, the raw water flows into the ultrafiltration filter element 1 through the first solenoid valve 5.1 for filtration, and the ultrafiltration water obtained after filtration enters the RO filtration branch waterway through the fourth water inlet solenoid valve 5.4. A water inlet TDS probe 9 is provided in front of the water inlet end of the fourth solenoid valve 5.4. Part of the ultrafiltration water output from the primary filtration main waterway flows through the RO filtration branch waterway, and is filtered again through the RO filter element to form pure water; the other part flows through the re-primary filtration branch waterway and is directly led out to mix with the pure water filtered by the RO filter element.

The RO filtration branch waterway in this embodiment includes a motor 2 and a RO filter element 3. The ultrafiltration water output from the primary filtration main waterway is the inlet water of the RO filtration branch waterway. The ultrafiltration water is pressurized by the motor 2 and transported to the RO filter element 3 for filtration. After filtration, the RO filter element 3 outputs pure water and wastewater. The pure water output from multiple RO filtration branch waterways enters the RO filtration confluence waterway for confluence, and the wastewater output from multiple RO filtration branch waterways enters the wastewater waterway. In this embodiment, two RO filtration branch waterways are set, namely the first RO filtration branch waterway and the second RO filtration branch waterway. The first RO filtration waterway includes a first motor and a first RO filter element, and the second RO filtration waterway includes a second motor and a second RO filter element, and the ultrafiltration water is divided into two branches for filtration respectively. The setting of the RO filtration branch waterway enables the ultrafiltration water output from the filtration main waterway to be re-filtered in multiple parallel ways, thereby further obtaining pure water while increasing the speed of water treatment and the flow rate of water treatment.

The RO filtration converging waterway in this embodiment includes a pressure-stabilizing valve 7 and a servo solenoid valve 8. The pure water output from multiple RO filtration branch waterways converges in the RO filtration converging waterway, and after merging, passes through the pressure-stabilizing valve 7 and the servo solenoid valve 8 to enter the water outlet waterway.

The wastewater waterway in this embodiment includes a wastewater solenoid valve, and wastewater output from multiple RO filter branch waterways converges in the wastewater waterway and then is discharged.

The water inlet end of the primary filtration branch waterway in this embodiment is arranged in the RO filtration branch waterway. Specifically, the water inlet end of the primary filtration branch waterway is arranged between the water inlet of the RO filter element 3 and the motor 2, and the ultrafiltration water is divided into several branches and led out. The ultrafiltration water output by multiple primary filtration branch waterways enters the primary filtration converging waterway for confluence. In this embodiment, two primary filtration branch waterways are arranged. The water inlet end of the first primary filtration branch waterway is arranged between the first motor and the water inlet end of the first RO filter element; the water inlet end of the second primary filtration branch waterway is arranged between the second motor and the water inlet end of the second RO filter element, and the ultrafiltration water is divided into two branches and led out. The setting of the primary filtration branch waterway enables the ultrafiltration water output from the primary filtration main waterway to be directly led out without being filtered by the RO filter element 3, and to be mixed with the pure water filtered by the RO filter element through the RO filtration branch waterway.

The primary filtration converging waterway in this embodiment includes a pressure regulating valve 7 and a servo solenoid valve 8. The ultrafiltration water outputted from the multiple primary filtration branch waterways converges in the primary filtration converging waterway and enters the water outlet waterway after merging through the pressure regulating valve 7 and the servo solenoid valve 8. An ultrafiltration water flowmeter 11 is provided on the primary filtration converging waterway.

The servo solenoid valve 8 in this embodiment is used to adjust the flow rate; the pressure-stabilizing valve 7 is used to maintain a stable pressure, keep the mixed water ratio consistent, and ensure that the outlet water TDS is stable.

The outlet waterway in this embodiment includes a blending water flowmeter 12, a pressure regulating valve 7, a pressure barrel 4 and a mixed water TDS probe 10. The pure water output from the RO filtration confluent waterway and the ultrafiltration water output from the primary filtration confluent waterway are mixed in the outlet waterway to form blending water, which is input into the pressure barrel 4 through the pressure regulating valve 7 and output from the pressure barrel 4 when needed. A blending water flowmeter 12 is provided downstream of the waterway after the pure water and ultrafiltration water are mixed, which is used to measure the flow rate of the blending water outlet. The pressure barrel 4 is used to store and mix and regulate ultrafiltration water and pure water, and can increase the pressure to increase the flow rate to meet the large flow requirements of commercial machines. A mixed water TDS probe 10 is provided at the outlet end of the pressure barrel 4 to measure the TDS value of the water output from the pressure barrel 4.

The utility model can meet the demand of large water consumption by at least two RO filter elements 3. In this embodiment, two RO filter elements 3 are selected. In this embodiment, multiple TDS probes are provided, wherein an inlet TDS probe 9 is provided at the water inlet end of the RO filter element 3, and a mixed water TDS probe 10 is provided at the water outlet end of the pressure barrel 4. In this embodiment, multiple flow meters are provided, wherein an ultrafiltration water flow meter 11 is provided on the primary filtration branch waterway, and a blending water flow meter 12 is provided on the RO filtration confluence waterway.

The inlet TDS probe 9 and the mixed water TDS probe 10 are both electrically connected to the PCB circuit control board, which sends an electrical signal to realize the on and off of the servo solenoid valve 8. The specific control can be realized in combination with the existing technology. The adjustment process is: monitor the inlet TDS and the mixed water TDS, analyze the inlet TDS, the mixed water TDS and the target TDS. When the mixed water TDS is not within the error range set by the target TDS, adjust the servo solenoid valve 8, and use the flow meter to detect whether the servo solenoid valve 8 operates accurately, so that the TDS of the mixed water meets the requirements. The utility model uses the inlet TDS probe 9 and the mixed water TDS probe 10 to detect the TDS values of the inlet water and the mixed water in real time, and cooperates with the ultrafiltration water flowmeter 11, the blending water flowmeter 12 and the servo solenoid valve 8 in the ultrafiltration water circuit and the mixed water circuit to realize that the TDS value of the water outlet of the water purifier is adjustable and stable.

As shown in FIG2 , the utility model adds a backwash water circuit for the ultrafiltration filter element to prevent the filter element from being blocked by colloids and other front-end impurities. The backwash water circuit includes a pressure reducing valve 6 and a third water inlet solenoid valve 5.3. According to the direction of water flow, the raw water passes through the pressure reducing valve 6 and the third water inlet solenoid valve 5.3. When the pressure reducing valve 6 and the third water inlet solenoid valve 5.3 are opened, the raw water is directly transported to the outlet end of the ultrafiltration filter element 1 to reversely flush the ultrafiltration filter element 1, and the waste water after flushing enters the backwash discharge water circuit.

The backwash discharge water circuit in this embodiment includes a drain solenoid valve 5.2. The water inlet end of the backwash discharge water circuit is connected to the water inlet end of the ultrafiltration filter element 1, and the water outlet end of the backwash discharge water circuit is connected to the waste water outlet of the whole machine. After the flushing waste water enters the backwash discharge water circuit, when the drain solenoid valve 5.2 is opened, it is discharged from the whole machine along the backwash discharge water circuit.

Working mode of the utility model:

1. Working method of blending water:

After purchasing the machine and installing it, the user sets the required target water outlet TDS value, turns on the municipal tap water, and the water purifier works normally. At this time, the first water inlet solenoid valve 5.1 is opened, the second water inlet solenoid valve 5.2 is closed, the third water inlet solenoid valve 5.3 is closed, and the fourth water inlet solenoid valve 5.4 is opened, that is, tap water normally flows into the primary filtration main water channel, enters the water inlet end of the ultrafiltration filter element 1, is filtered by the ultrafiltration filter element 1 to obtain ultrafiltration water, and then discharges from the water outlet of the filter bottle of the ultrafiltration filter element 1.

A part of the ultrafiltration water enters the RO filtration branch waterway to supply water to the RO filter element 3, and is filtered by the RO filter element 3 to obtain pure water; another part of the ultrafiltration water enters the primary filtration branch waterway and is directly output to be mixed with the pure water obtained by filtration of the RO filter element. The mixed blended water is output from the water outlet waterway.

The water purifier detects the hardness of the raw water through the inlet TDS probe 9 and sends the data to the control circuit board. The control board compares the raw water with the target TDS value set by the user, sends a signal to the servo solenoid valve 8 to adjust the mixing ratio of pure water and ultrafiltration water, and then uses the blending water flow meter 12 and the ultrafiltration water flow meter 11 to detect whether the ratio is correct. When the mixed water TDS probe 10 detects that the actual outlet TDS value and the user's target value are within the fluctuation range, the servo solenoid valve 8 of the water purifier stops working.

2. Backwash working mode:

After the ultrafiltration filter element 1 has been used for a period of time, the corresponding colloids and free impurities will be deposited on the surface of the ultrafiltration filter element 1, and some free impurities and colloids will also be attached to the bottom of the filter bottle. At this time, the machine will start the backwash mode and open the backwash discharge water channel to reversely flush the filter element. At this time, the first water inlet solenoid valve 5.1 is closed, the second water inlet solenoid valve 5.2 is opened, the third water inlet solenoid valve 5.3 is opened, and the fourth water inlet solenoid valve 5.4 is closed. The raw water passes through the raw water inlet and sequentially passes through the pressure reducing valve 6 and the third water inlet solenoid valve 5.3 to reversely flush the ultrafiltration filter element. The flushed wastewater passes through the second water inlet solenoid valve 5.2 and is discharged from the entire machine.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a waterway system of adjustable play water TDS value, its characterized in that includes primary filtration main water route, two at least RO filtration branch water routes, two at least primary filtration branch water routes, the primary filtration meet the water route, RO filtration meet water route and play water route, two at least the water inlet end of RO filtration branch water route connect in the water outlet end of primary filtration main water route and two at least the water outlet end of RO filtration branch water route connect in the water inlet end of RO filtration meet the water route, the water outlet end of RO filtration meet the water route connect in go out the water route, two at least the water inlet end of primary filtration branch water route connect in correspond before the filter core water inlet end of RO filtration branch water route and two at least the water outlet end of RO filtration branch water route connect in the water inlet end of primary filtration meet the water route, the water outlet end of primary filtration meet the water route connect in go out the water route, wherein primary filtration main water route is equipped with primary filtration filter core and advance water TDS detection piece in proper order, RO filtration branch water route is equipped with the water route, it is equipped with the water mixing flow control valve to go out water detection.

2. The waterway system of adjustable effluent TDS value of claim 1, further comprising a backwash waterway connecting a water outlet end of the primary filter element to a water inlet end of the primary filter element.

3. The waterway system with adjustable effluent TDS value according to claim 1 or 2, wherein the primary filter element is an ultrafiltration filter element, the flow regulating valve is a servo solenoid valve, and the RO filtration converging waterway is provided with the flow regulating valve.

4. The waterway system of adjustable effluent TDS value according to claim 2, wherein a first solenoid valve is disposed in the primary filter cartridge in front of the primary filter cartridge, and a third water intake solenoid valve is disposed in the back flush waterway and connected in front of the first solenoid valve.

5. The waterway system of adjustable effluent TDS value of claim 2, further comprising a backwash discharge waterway having a water inlet end connected to the pre-filter cartridge for discharging backwash water output from the backwash waterway.

6. The waterway system of adjustable effluent TDS value of claim 5, further comprising a wastewater waterway, wherein the wastewater outlet end of the RO filter element is connected to the wastewater waterway by a wastewater solenoid valve, the outlet end of the backwash discharge waterway is connected to the wastewater waterway, and the backwash discharge waterway is provided with a second water inlet solenoid valve.

7. The waterway system of adjustable effluent TDS value according to claim 1, wherein any two waterways or all of the three waterways are provided with flow meters.

8. The waterway system of adjustable effluent TDS value according to claim 1, wherein the primary filtration converging waterway, the RO filtration converging waterway, and the effluent waterway are all provided with pressure stabilizing valves.

9. The waterway system of claim 1, wherein the waterway is provided with a pressure tank.

10. A water purifier characterized in that it further comprises an outer housing, wherein the RO filter element, the TDS detector and the flow regulating valve are located in the outer housing, based on the waterway system of any one of claims 1 to 9, wherein the TDS value of the effluent is adjustable.