Waterway structure and water purifier

Abstract

The utility model provides a waterway structure and a water purifier. According to the waterway structure, one end of a first waterway connecting unit is connected with a water inlet waterway, the other end of the first waterway connecting unit is connected with a water inlet end of a filtering unit, one end of a second waterway connecting unit is connected with a water outlet end of the filtering unit, and the other end of the second waterway connecting unit is connected with a water production unit; the first water path connecting unit comprises a first water quality detection piece and a first water outlet and is used for detecting the water quality of inlet water; the filtering unit is used for removing impurities in the inflow water flow; the second water path connecting unit comprises a second water quality detection piece and a second water outlet and is used for detecting the filtered water quality; and the water production unit is used for producing the filtered water into drinking water. Through the first water path connecting unit and the second water path connecting unit among the water inlet, the filtering unit and the water producing unit, inlet water with harmful substances is discharged in time, the harmful substances are prevented from damaging the filtering unit and the water producing unit, and the filtering capacity of the water purifier is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of water purification equipment, and in particular to a water channel structure and a water purifier. Background Art

[0002] As people's quality of life improves, ordinary water purification products can no longer meet the needs of users. Users need safe and healthy drinking water.

[0003] For water purifiers that use municipal tap water as the water source, since many old communities have water towers for secondary water supply, the water towers need to be cleaned regularly, and harmful substances are easily left after cleaning; or, when the filter element is replaced or the water purifier is installed for the first time, the protective liquid in the filter element and the lubricant of the sealing ring are precipitated, causing the water source with harmful substances to enter the water purifier.

[0004] Existing water purifiers are difficult to identify and treat harmful substances in the incoming water source, which causes the harmful substances to damage the water purifier's filtration system, causing the water purifier to lose its ability to filter water quality, endangering the user's drinking water safety. Summary of the invention

[0005] The technical problem to be solved by the present disclosure is to overcome the defect that the water purifier in the prior art is difficult to identify and treat harmful substances in the incoming water source, and to provide a water channel structure and a water purifier.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] In a first aspect, a water channel structure is provided, comprising: a first water channel connection unit, a filtering unit, a second water channel connection unit and a water production unit;

[0008] One end of the first water channel connection unit is connected to the water inlet water channel, and the other end is connected to the water inlet end of the filter unit; one end of the second water channel connection unit is connected to the water outlet end of the filter unit, and the other end is connected to the water production unit;

[0009] The first water channel connection unit includes a first water quality detection member and a first drain port, and the first water channel connection unit is used to detect the quality of incoming water;

[0010] The filtering unit is used to remove impurities in the influent water flow;

[0011] The second water channel connection unit includes a second water quality detection member and a second drain port, and the second water channel connection unit is used to detect the quality of filtered water;

[0012] The water production unit is used to produce drinking water from filtered water.

[0013] Preferably, the first water quality detection component includes a pH probe.

[0014] Preferably, the second water quality detection component includes a COD (Chemical Oxygen Demand) probe.

[0015] Preferably, the filtration unit comprises at least two filter elements among a first composite filter element, a reverse osmosis membrane filter element and a second composite filter element;

[0016] The first composite filter element is used to remove large particles of impurities in water;

[0017] The second composite filter element is used to remove odor in water.

[0018] Preferably, the filtration unit comprises a reverse osmosis membrane filter element, and the reverse osmosis membrane filter element is connected to a third drain outlet.

[0019] Preferably, the water production unit comprises a water storage tank and a heating water tank, and the water storage tank is connected to the heating water tank;

[0020] The water storage tank is used to supply water to the heating water tank;

[0021] The heating water tank is used to prepare hot drinking water.

[0022] Preferably, the heating water tank includes a sterilizer.

[0023] Preferably, the connection portion between the second water channel connection unit and the water production unit includes a first one-way valve.

[0024] Preferably, a fourth drain outlet is provided on the hot water tank.

[0025] In a second aspect, a water purifier is provided, comprising the water channel structure described in the first aspect.

[0026] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0027] The positive progressive effect of the present invention is that by detecting the quality of the incoming water and the water quality after filtration through the first water path connecting unit and the second water path connecting unit between the water inlet, the filtering unit and the water production unit, the incoming water containing harmful substances is discharged in time to avoid the harmful substances from damaging the filtering unit and the water production unit, thereby ensuring the filtering capacity of the water purifier and improving the drinking water quality of the water purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the water channel structure of Example 1 of the present disclosure;

[0029] Figure 2 This is a schematic structural diagram of the water production unit in the water channel structure of Example 1 of the present disclosure.

[0030] Description of Reference Numerals

[0031] First water channel connection unit 100

[0032] First water quality test piece 110

[0033] First drainage control valve 111

[0034] First water supply control valve 112

[0035] Filter unit 200

[0036] The first composite filter element 210

[0037] Reverse osmosis membrane filter 220

[0038] The third drainage control valve 221

[0039] Second check valve 222

[0040] The second composite filter element 230

[0041] Water pump 240

[0042] Second water channel connection unit 300

[0043] Second water quality test piece 310

[0044] Second drainage control valve 311

[0045] Second water supply control valve 320

[0046] First check valve 321

[0047] Water production unit 400

[0048] Water tank 410

[0049] Normal temperature water outlet valve 411

[0050] First level float 412

[0051] Second level float 413

[0052] Exhaust hole 414

[0053] Light assembly 415

[0054] Exhaust pipe 416

[0055] Heating water tank 420

[0056] Temperature Sensor 421

[0057] Sterilizer 422

[0058] Heater 423

[0059] Fourth drainage control valve 424

[0060] Hot water outlet valve 425

[0061] Exhaust port 426

[0062] Liquid level probe 427 DETAILED DESCRIPTION

[0063] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0064] In the description of the present disclosure, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the feature. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0065] Example 1

[0066] This embodiment provides a water channel structure, such as Figure 1 As shown, it includes: a first water channel connection unit 100, a filtering unit 200, a second water channel connection unit 300 and a water production unit 400;

[0067] One end of the first water channel connection unit 100 is connected to the water inlet water channel, and the other end is connected to the water inlet end of the filter unit 200; one end of the second water channel connection unit 300 is connected to the water outlet end of the filter unit 200, and the other end is connected to the water production unit 400;

[0068] The first water channel connection unit 100 includes a first water quality detection member 110 and a first drain port, and the first water channel connection unit 100 is used to detect the quality of incoming water;

[0069] The filter unit 200 is used to remove impurities in the incoming water flow;

[0070] The second water channel connection unit 300 includes a second water quality detection member 310 and a second drain port, and the second water channel connection unit 300 is used to detect the quality of filtered water;

[0071] The water production unit 400 is used to produce drinking water from filtered water.

[0072] In this solution, the first water path connection unit 100 is used to detect the quality of the incoming water before entering the filter unit 200. During the detection, the first drainage control valve 111 is opened and the first water supply control valve 112 is closed to form an inlet water quality detection water path, and the first water quality detection element 110 is used to detect the inlet water quality, mainly to detect whether there are substances in the inlet water that are harmful to the filter unit 200. When the inlet water quality meets the water quality requirements, the first drainage control valve 111 is closed and the first water supply control valve 112 is opened to guide the water flow to the filter unit 200.

[0073] The second water path connection unit 300 is used to detect the water quality of the filtered water. During the detection, the filtered water quality detection water path is formed by opening the second drainage control valve 311 and closing the second water supply control valve 320, and the filtered water quality is detected by the second water quality detection element 310, mainly to detect whether there are organic pollutants in the filtered water. When the filtered water quality meets the water quality requirements, the second drainage control valve 311 is closed, the second water supply control valve 320 is opened, and the water flow is directed to the water production unit 400.

[0074] By repeatedly testing the incoming water quality by the first water channel connection unit 100 and the second water channel connection unit 300, the incoming water containing harmful substances is discharged in time to prevent the harmful substances from damaging the filter unit 200 and the water production unit 400, thereby ensuring the safety of the water source for water production.

[0075] As an implementable manner, the first water quality detection component 110 includes a pH probe.

[0076] In this solution, the pH probe is used to detect the pH of the incoming water source. It is used in scenarios where the incoming water source is river water, groundwater or municipal tap water to prevent the incoming water with too high a pH value from damaging the filter unit 200 and affecting the operating efficiency and service life of the filter element in the filter unit 200.

[0077] In a feasible embodiment, the pH probe detects whether the pH value of the incoming water quality meets the preset pH value. The optional preset pH value is 6-8, with a tolerance of ±0.5. If the pH value of the incoming water detected by the pH probe does not meet the preset pH value, the first drainage control valve 111 is opened and the first water supply control valve 112 is closed to enter the drainage mode until the incoming water quality meets the preset pH value or the water intake is stopped.

[0078] As an implementable manner, the second water quality detection component 310 includes a COD probe.

[0079] In this solution, the organic pollutants in the filtered water are detected by a COD probe. COD is an important indicator for measuring the content of reducing substances in the water sample. If the COD value does not meet the water quality requirements, the second drainage control valve 311 is opened and the second water supply control valve 320 is closed, and the water quality detection water channel after filtration will be drained and flushed.

[0080] As an achievable manner, the filtration unit 200 includes at least two filter elements among a first composite filter element 210, a reverse osmosis membrane filter element 220 and a second composite filter element 230;

[0081] The first composite filter element 210 is used to remove large particles of impurities in water;

[0082] The second composite filter element is used to remove odor in water.

[0083] In this solution, the corresponding number of filter elements is reasonably configured based on water demand. The first composite filter element 210 can be a CPP (Cast Polypropylene, polypropylene film) composite filter element. The CPP composite filter element can be a composite of a polypropylene melt-blown filter element and activated carbon, or a composite of a carbon rod and a folded polypropylene melt-blown filter element; the reverse osmosis membrane filter element 220 can be a RO (Reverse Osmosis, reverse osmosis) membrane filter element, or a membrane element filter element such as a NF (Nanofiltration, nanofiltration) membrane; the second composite filter element 230 can be a composite filter element of a carbon rod and ultrafiltration; a water pump 240 is arranged in front of the reverse osmosis membrane filter element 220 to meet the water pressure demand of the reverse osmosis membrane filter element 220.

[0084] As an implementable manner, the filtration unit 200 includes a reverse osmosis membrane filter element 220 , and the reverse osmosis membrane filter element 220 is connected to a third drain port.

[0085] In this solution, the reverse osmosis membrane filter element 220 discharges wastewater through the third drain valve and the second one-way valve 222. The third drain valve is the wastewater drain valve of the reverse osmosis membrane filter element 220, which is used to discharge the wastewater generated by the reverse osmosis membrane. When the third drain valve is normally closed, the wastewater can be discharged outward according to the nominal wastewater flow rate. When the third drain valve is opened, it is in a fully open state, which is the flushing mode of the reverse osmosis membrane filter element 220. The second one-way valve 222 is used to prevent the water pressure at the third drain port from being too high, causing the wastewater to flow back into the reverse osmosis membrane filter element 220 and damage the reverse osmosis membrane.

[0086] As an achievable manner, the water production unit 400 includes a water storage tank 410 and a heating water tank 420, and the water storage tank 410 is connected to the heating water tank 420;

[0087] The water storage tank 410 is used to supply water to the heating water tank 420;

[0088] The heating water tank 420 is used to prepare hot drinking water.

[0089] In this solution, for the incoming water that meets the water quality requirements after multiple tests by the first water path connection unit 100 and the second water path connection unit 300, the incoming water required for water production is stored in the water storage tank 410, and a normal temperature water outlet pipeline is set through the water storage tank 410, and the normal temperature water outlet valve 411 on the warm water outlet pipeline is controlled to guide the normal temperature drinking water in the water storage tank 410 to the normal temperature water outlet. The water storage tank 410 is also connected to the heating water tank 420 to supply water to the heating water tank 420, and receives the hot air discharged from the heating water tank 420 through the exhaust pipe 416. The heating water tank 420 is provided with a hot water outlet pipeline, and the hot water outlet valve 425 on the hot water outlet pipeline is controlled to guide the hot drinking water in the heating water tank 420 to the hot water outlet.

[0090] In one possible embodiment, Figure 2 As shown, the water tank 410 is a normal pressure water tank, including: a first liquid level float 412, a second liquid level float 413, an exhaust hole 414 and a lamp assembly 415. The first liquid level float 412 is used to monitor whether the liquid level of the water tank 410 exceeds the overflow level, and the second liquid level float 413 has three levels, which is used to monitor the real-time liquid level of the water tank 410. When the second liquid level float detects that the liquid level of the water tank 410 is at a low level, the water tank 410 starts to take in water; when the second liquid level float detects that the liquid level of the water tank 410 is at a high level, the water tank 410 stops taking in water; when the second liquid level float fails, when the first liquid level float 412 detects that the water tank 410 is at an overflow level, the water tank 410 stops taking in water and notifies the overflow fault alarm. The lamp assembly 415 may be an LED lamp assembly, which is used to sterilize the water tank 410 to ensure the safety of drinking water in the water tank 410. The exhaust hole 414 is used to discharge the hot air introduced from the exhaust pipe 416 into the heating water tank 420 to maintain the pressure safety of the heating water tank 420.

[0091] As an implementable manner, the heating water tank 420 includes a sterilizer 422 .

[0092] In this solution, the drinking water in the heating water tank 420 is sterilized by a sterilizer 422, which may be a mercury lamp.

[0093] In an achievable embodiment, the heating water tank 420 uses a stainless steel heating liner and also includes: a temperature sensor 421, a liquid level probe 427, an exhaust port 426 and a heater 423. The liquid level probe 427 is used to monitor the liquid level in the heating water tank 420; the exhaust port 426 is connected to the exhaust pipe 416, and is used to discharge the hot air in the heater 423 into the water storage tank 410 to maintain the pressure safety of the heating water tank 420; the temperature sensor 421 can be an NTC (Negative Temperature Coefficient) temperature sensor 421, which is used to monitor the water temperature in the heating water tank 420 to control the heater 423 to maintain the temperature of the drinking water.

[0094] As an implementable manner, the connection portion between the second water channel connection unit 300 and the water production unit 400 includes a first one-way valve 321 .

[0095] In this solution, the second drainage control valve 311 of the second water circuit connection unit 300 is opened, and the second water supply control valve 320 in the water supply branch is closed to detect and discharge the filtered water quality; when the filtered water quality meets the water quality requirements, the second drainage control valve 311 of the second water circuit connection unit 300 is closed, and the second water supply control valve 320 is opened to connect the filter unit 200 and the water production unit 400 to produce water. A first check valve 321 is set at the connection part between the second water circuit connection unit 300 and the water production unit 400 to prevent the water pressure in the water storage tank 410 from being too high, causing the water flow to flow back into the reverse osmosis membrane filter element 220, thereby damaging the reverse osmosis membrane.

[0096] As a feasible manner, a fourth drain outlet is provided on the hot water tank.

[0097] In this solution, the hot water tank controls the fourth drain control valve 424 to flush the hot water tank or discharge the waste water in the hot water tank to ensure the water quality safety of the hot drinking water flowing out of the hot water tank.

[0098] The working mode of the waterway structure in this embodiment is explained in detail below through specific implementation methods:

[0099] The working modes of the water channel structure provided in this embodiment include drainage mode, flushing mode, water production flushing mode, water production mode, full water flushing mode, heating mode, overflow mode, water outlet mode and emptying mode. Specifically:

[0100] In the drainage mode, after water is turned on and power is supplied, the water quality of the water inlet is monitored in real time based on the pH probe serving as the first water quality detection component 110. If the inlet water quality meets the preset pH value, the first water supply control valve 112 is opened. Otherwise, the first drainage control valve 111 is opened and the first water supply control valve 112 is closed to enter the drainage mode, so as to drain the acidic water or alkaline water in the water inlet pipe until the inlet water quality meets the preset pH value.

[0101] Flushing mode: when the incoming water quality meets the preset pH value, the filter unit 200 enters the flushing mode. This mode requires manual operation to enter. After entering the flushing mode, the first water supply control valve 112 is opened, the first drainage control valve 111 is closed, the water pump 240 is turned on, the third drainage control valve 221 is turned on, and the second drainage control valve 311 and the second water supply control valve 320 are closed. The duration can be set according to actual conditions.

[0102] After the filter unit 200 is flushed, the water flushing mode is entered, that is, the first water supply control valve 112 is opened, the first drainage control valve 111 is closed, the water pump 240 is opened, the third drainage control valve 221 is closed, the second drainage control valve 311 is opened, and the second water supply control valve 320 is closed. At this time, the COD probe as the second water quality detection element 310 detects the COD value of the filtered influent water in real time. When the COD value of the filtered influent water is less than or equal to 2 mg / L, the water flushing mode is stopped, otherwise the water flushing is continued.

[0103] Water production mode, when the water production and flushing mode is completed, the water production mode is entered. At this time, the PH probe is always monitoring the PH value in real time. Only when it is lower than the preset PH value will the water production mode be entered. Even if it has entered the water production mode, as long as the inlet water quality does not meet the preset PH value, the drainage mode will be entered at any time. When entering the water production mode, the first water supply control valve 112 is opened, the first drainage control valve 111 is closed, the water pump 240 is opened, the third drainage control valve 221 is closed, the second drainage control valve 311 is closed, and the second water supply control valve 320 is opened. At this time, the second liquid level float 413 in the water storage tank 410 monitors the liquid level in real time. When the liquid level reaches the middle liquid level of the second liquid level float 413, the liquid level probe 427 in the heating water tank 420 also monitors the liquid level and starts the heater 423, and continues to produce water until the second liquid level float 413 detects that the water storage tank 410 is at a high liquid level, and the water production stops.

[0104] In the full water flushing mode, when the second liquid level float 413 detects that the water storage tank 410 is at a high liquid level, the filter unit 200 is flushed once, that is, the first water supply control valve 112 is opened, the first drainage control valve 111 is closed, the water pump 240 is turned on, the third drainage control valve 221 is turned on, and the second drainage control valve 311 and the second water supply control valve 320 are closed. The full water flushing mode is stopped after the preset flushing time is completed.

[0105] In the heating mode, when the second liquid level float 413 in the water tank 410 detects that the water tank 410 is at the middle liquid level, and the liquid level probe 427 in the heating water tank 420 detects the liquid level, the heater 423 is turned on, and the heating is stopped when the NTC temperature sensor 421 detects that the water temperature reaches the preset temperature; when the temperature is lower than 92°C, and the second liquid level float 4131 detects that the water tank 410 is at the middle liquid level, and the liquid level probe 427 in the heating water tank 420 detects the liquid level, the electric heater 423 is turned on. This cycle continues.

[0106] In overflow mode, when the first liquid level float 412 in the water tank detects the liquid level of the water storage tank 410, it indicates that water continues to flow into the water tank and the second liquid level float 413 works abnormally, and a fault reminder notification is sent at this time.

[0107] In the water outlet mode, when the hot water outlet valve 425 is opened, hot drinking water flows out. The hot water outlet valve 425 is preset to be opened for 60 seconds. If no signal is given to close the hot water outlet valve 425 after 60 seconds, the hot water outlet valve 425 is forced to close. If it is opened again, it needs to be opened again. The cold water outlet mode is the same as the hot water outlet mode.

[0108] In the emptying mode, when it is detected that the opening time of the hot water outlet valve 425 or the cold water outlet valve has not been opened for a preset time, and at the same time, it is detected that the liquid level of the water storage tank 410 is greater than the low liquid level, the fourth drainage control valve 424 is opened and the first drainage control valve 111 is opened. The emptying duration system can be preset. After the emptying is completed, the system enters the water production mode. At the same time, before entering the water production mode, the system must monitor the data sent back by the pH probe in real time. Only when it meets the system preset value can it enter the water production mode, otherwise it enters the drainage mode.

[0109] The water channel structure provided in this embodiment detects the quality of incoming water and the quality of water after filtration through the first water channel connecting unit 100 and the second water channel connecting unit 300 between the water inlet, the filter unit 200 and the water production unit 400, and discharges the incoming water containing harmful substances in time to avoid the harmful substances from damaging the filter unit 200 and the water production unit 400, thereby ensuring the filtering capacity of the water purifier and improving the drinking water quality of the water purifier.

[0110] Example 2

[0111] This embodiment provides a water purifier, which includes the water channel structure described in Example 1.

[0112] The water purifier provided in this embodiment detects the quality of incoming water and the quality of water after filtration through the first water path connecting unit 100 and the second water path connecting unit 300 between the water inlet, the filter unit 200 and the water production unit 400, and discharges the incoming water containing harmful substances in time to avoid the harmful substances from damaging the filter unit 200 and the water production unit 400, thereby ensuring the filtration capacity of the water purifier and improving the quality of drinking water in the water purifier.

[0113] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A waterway structure, characterized in that: include: A first water channel connection unit, a filtering unit, a second water channel connection unit and a water production unit; One end of the first water channel connection unit is connected to the water inlet water channel, and the other end is connected to the water inlet end of the filter unit; one end of the second water channel connection unit is connected to the water outlet end of the filter unit, and the other end is connected to the water production unit; The first water channel connection unit includes a first water quality detection member and a first drain port, and the first water channel connection unit is used to detect the quality of incoming water; The filtering unit is used to remove impurities in the influent water flow; The second water channel connection unit includes a second water quality detection member and a second drain port, and the second water channel connection unit is used to detect the quality of filtered water; The water production unit is used to produce drinking water from filtered water.

2. The waterway structure according to claim 1, characterized in that: The first water quality detection component includes a pH probe.

3. The waterway structure according to claim 1, characterized in that: The second water quality detection component includes a COD probe.

4. The waterway structure according to claim 1, characterized in that: The filtration unit comprises at least two filter elements of a first composite filter element, a reverse osmosis membrane filter element, and a second composite filter element; The first composite filter element is used to remove large particles of impurities in water; The second composite filter element is used to remove odor in water.

5. The waterway structure according to claim 1, characterized in that: The filter unit comprises a reverse osmosis membrane filter element, and the reverse osmosis membrane filter element is connected to a third drain port.

6. The waterway structure according to claim 1, characterized in that: The water production unit comprises a water storage tank and a heating water tank, and the water storage tank is connected to the heating water tank; The water storage tank is used to supply water to the heating water tank; The heating water tank is used to prepare hot drinking water.

7. The waterway structure according to claim 6, characterized in that: The heating water tank includes a sterilizer.

8. The waterway structure according to claim 1, characterized in that: The connection portion between the second water channel connection unit and the water production unit includes a first one-way valve.

9. The waterway structure according to claim 6, characterized in that: The heating water tank is provided with a fourth drain outlet.

10. A water purifier, characterized in that: The water purifier comprises the water channel structure according to any one of claims 1 to 9.

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