Water purifying apparatus

Abstract

This utility model belongs to the technical field of water treatment equipment and discloses a water purification device, including: a first filter component whose inlet end is connected to the raw water supply end; the first filter component is connected to a wastewater drainage pipe; the wastewater drainage pipe is equipped with a wastewater valve; a first water supply line and a second water supply line are connected in parallel between the purified water outlet end of the first filter component and a water switch; a pressure tank is located in the first water supply line; a switch valve is provided at the inlet and outlet of the pressure tank; the switch valve is used to control the connection and disconnection between the pressure tank and the first water supply line; the water purification device has a flushing state and a water supply state; in the flushing state, when the pipeline between the first filter component and the raw water supply end is connected, and at least one of the water switch and the wastewater valve is in the open state, the switch valve is in the closed state. This utility model's water purification device can prevent flushing water from entering the pressure tank during the flushing process, causing pollution or damage, improving user water safety, and ensuring normal water supply from the water purification device.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to water purification equipment. Background Technology

[0002] A water purifier is a device that removes impurities and contaminants from water using physical, chemical, or biological methods to provide clean and safe drinking water. The pressure tank inside the purifier can pre-store purified water, increasing the water flow rate and saving users waiting time. The pressure tank adapts to changes in the water level by adjusting the volume of the pressure bladder. When the water flowing into the pressure tank is of poor purity, contaminants in the water can contaminate the inside of the pressure tank and even cause corrosion damage to the pressure bladder. During the flushing process, water flows through the pipes and exits from the wastewater valve or the pure water faucet, carrying the protective agent on the filter surface. During this process, water may enter the pressure tank, causing impurities such as the protective agent to contaminate the inside of the pressure tank, affecting the user's water safety and hygiene; the protective agent can also cause corrosion damage to the pressure bladder, affecting the normal water supply of the purifier. Prior art, such as the earlier patent application number 202420141635.2, discloses a water purifier. This purifier has a pressure tank installed between the first filter and the ambient temperature outlet. During the water purification and rinsing process, the water produced by the first filter enters the pressure tank, and after water storage is complete, it flows to the ambient temperature outlet. Furthermore, during the electric rinsing process, rinsing water is discharged through the wastewater outlet, but there is still a risk that rinsing water may enter the pressure tank. The rinsing water in both rinsing modes can contaminate and damage the pressure tank. Utility Model Content

[0003] The purpose of this utility model is to provide a water purification device that can prevent the flushing water carrying impurities such as protective agents from entering the pressure tank during the flushing process, causing internal pollution and corrosion damage to the air bladder, thus ensuring the user's safe and hygienic water supply and avoiding affecting the normal water supply of the water purification device.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A water purification device is provided, including a first filter component, a wastewater drainage pipe, and a water switch. The water purification device also includes a pressure tank. The inlet end of the first filter component is connected to the raw water supply end. The first filter component is connected to the wastewater drainage pipe, which is equipped with a wastewater valve. A first water supply line and a second water supply line are connected in parallel between the purified water outlet end of the first filter component and the water switch. The pressure tank is located in the first water supply line. A switch valve is provided at the inlet and outlet of the pressure tank. The switch valve is used to control the connection and disconnection between the pressure tank and the first water supply line. The water purification device has a flushing state and a water supply state. In the flushing state, when the pipe between the first filter component and the raw water supply end is connected, and at least one of the water switch and the wastewater valve is in the open state, the switch valve is in the closed state.

[0006] In one embodiment, the first water supply circuit includes a first connecting pipe and a second connecting pipe. One end of the first connecting pipe is connected to the pressure water tank, and the other end of the first connecting pipe is used to connect to the water switch. A first bypass port is provided on the first connecting pipe. One end of the second connecting pipe is connected to the first bypass port, and the other end is used to connect to the purified water outlet of the first filter component. The switch valve is disposed on the first connecting pipe and is located between the first bypass port and the inlet / outlet.

[0007] In one embodiment, the water purification device further includes a main pipe, one end of which is connected to the purified water outlet of the first filter component, and the other end of which is used to connect to the water switch. A second bypass port is provided on the main pipe, and the end of the second connecting pipe away from the first connecting pipe is connected to the second bypass port. Along the direction of purified water flow, the main pipe downstream of the second bypass port forms the second water supply path.

[0008] In one embodiment, the water purification device further includes a one-way high-pressure switch disposed on the main pipe, and the one-way high-pressure switch is located upstream of the second bypass port along the water flow direction.

[0009] In one embodiment, a pipe joint is provided on the first connecting pipe, and the switch valve is detachably connected to the pipe joint to close or open the first connecting pipe.

[0010] In one embodiment, the water purification device further includes a post-filter assembly disposed between the water switch and the pressure water tank, the post-filter assembly being used to filter the water supplied to the pressure water tank.

[0011] In one embodiment, along the direction of water flow, the outlet of the first water supply path is connected to the inlet of the post-filter assembly.

[0012] In one embodiment, the post-filtration assembly includes a plurality of post-outlet pipes and a plurality of post-filter cartridges, the post-filter cartridges being disposed on the post-outlet pipes, and the plurality of post-outlet pipes being arranged in parallel.

[0013] In one embodiment, the post-filter is an activated carbon filter.

[0014] In one embodiment, the first filtration assembly includes a composite filter element and an RO membrane reverse osmosis filter element arranged sequentially along the direction of raw water flow.

[0015] The beneficial effects of this utility model are:

[0016] The water purification device provided by this utility model includes a pressure tank, a first filter assembly connected to a wastewater drain pipe, and a wastewater valve installed in the wastewater drain pipe. A first water supply circuit and a second water supply circuit are connected in parallel between the purified water outlet of the first filter assembly and the water switch. The pressure tank is located in the first water supply circuit, and a switch valve is installed at the inlet and outlet of the pressure tank. The switch valve is used to control the connection and disconnection between the pressure tank and the first water supply circuit. The pressure tank can store the purified water formed by the first filter assembly in advance. The water purification device has a flushing state and a water supply state. In the flushing state, when the pipeline between the first filter assembly and the raw water supply end is connected, and at least one of the water switch and the wastewater valve is in the open state, the switch valve is in the closed state. The flushing states of the water purification equipment include wastewater valve flushing and water production flushing. When the water purification equipment is first powered on, the pressure tank is empty. During the wastewater valve flushing procedure, the pipeline between the first filter element and the raw water supply is open, and the wastewater valve is open. Raw water flows through the first filter element, flushing its surface and carrying away impurities such as the protective agent from the filter element, and is discharged from the wastewater drain pipe. Because the switch valve is closed, flushing water does not enter the pressure tank, preventing contamination and damage to the pressure tank caused by the flushing water generated during the wastewater valve flushing procedure. During the water production flushing procedure, the pipeline between the first filter element and the raw water supply is open, the first filter element is in water production mode, and the water switch is open. The prepared purified water flushes the second water supply circuit and is discharged from the water outlet. Because the switch valve is closed, flushing water does not enter the pressure tank, again preventing contamination and damage to the pressure tank caused by the flushing water generated during the water production flushing procedure. In both of the above-mentioned rinsing states, the closed state of the switch valve effectively isolates the pressure tank and the first water supply circuit, unaffected by the water level in the pressure tank. This prevents impurities such as protective agents in the rinsing water from entering the pressure tank and causing contamination, thus avoiding problems that could affect the user's water safety and hygiene. It also reduces the risk of corrosion damage to the airbag, ensuring the normal water supply of the water purification equipment. After the rinsing procedure is completed, the water purification equipment enters the water supply state, setting the switch valve to the open state. At this time, the water switch and wastewater valve are closed, and the purified water formed by the first filter component can enter the pressure tank through the first water supply circuit for outlet. When the user turns on the water switch, the pressure tank prioritizes supplying purified water to the user through the first water supply circuit. When the water level in the pressure tank is low and insufficient to provide a large flow rate, the first filter component enters the water production state, and the purified water outlet of the first filter component simultaneously supplies purified water to the user through the second water supply circuit to ensure the pure water flow at the user's end and save the user's waiting time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating the working principle of the water purification equipment provided in this embodiment of the utility model;

[0018] Figure 2 This is a structural disassembly diagram of the switch valve and pressure tank provided in this embodiment of the utility model.

[0019] In the picture:

[0020] 1. First filter assembly; 11. Composite filter element; 12. RO membrane reverse osmosis filter element; 13. Inlet valve; 14. Booster pump; 2. Wastewater drainage pipeline; 21. Wastewater valve; 3. Water switch; 4. Pressure tank; 5. Switch valve; 61. First connecting pipe; 62. Second connecting pipe; 63. Pipe connector; 64. Connecting screw; 7. Main pipe; 8. One-way high-pressure switch; 9. Post-filter assembly; 91. Post-outlet pipe; 92. Post-filter element;

[0021] 100. Raw water supply end. Detailed Implementation

[0022] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0023] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0024] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0025] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0026] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0027] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0028] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0029] like Figure 1 As shown, this utility model first provides a water purification device, which includes a first filter component 1, a wastewater drainage pipe 2, and a water switch 3. The inlet end of the first filter component 1 is connected to the raw water supply end 100, which is used to provide raw water. The first filter component 1 can purify the raw water to form purified water.

[0030] The water purification equipment also includes a pressure tank 4, and the first filter assembly 1 is connected to a wastewater drain pipe 2. The wastewater drain pipe 2 is equipped with a wastewater valve 21. A first water supply circuit and a second water supply circuit are connected in parallel between the purified water outlet of the first filter assembly 1 and the water switch 3. The pressure tank 4 is located in the first water supply circuit, and a switch valve 5 is installed at the inlet and outlet of the pressure tank 4. The switch valve 5 is used to control the connection and disconnection between the pressure tank 4 and the first water supply circuit. The pressure tank 4 can store the purified water formed by the first filter assembly 1 in advance. The water purification equipment has a flushing state and a water supply state. In the flushing state, when the pipeline between the first filter assembly 1 and the raw water supply end 100 is connected, and at least one of the water switch 3 and the wastewater valve 21 is in the open state, the switch valve 5 is in the closed state. The flushing states of the water purification equipment include wastewater valve flushing and water production flushing. When the water purification equipment is powered on for the first time, the pressure tank 4 is in an empty state. When the water purification equipment executes the wastewater valve flushing program, the pipeline between the first filter component 1 and the raw water supply end 100 is connected, the wastewater valve 21 is in the open state, the raw water flows through the first filter component 1, flushes the surface of the first filter component 1 to carry away impurities such as the protective agent on the surface of the filter element, and is discharged from the wastewater drain pipe 2. Since the switch valve 5 is in the closed state, the flushing water will not enter the pressure tank 4, avoiding the flushing water generated by the wastewater valve flushing program from contaminating and damaging the pressure tank 4. When the water purification equipment performs the water production and flushing procedure, the pipeline between the first filter component 1 and the raw water supply terminal 100 is connected, the first filter component 1 is in the water production state, and the water switch 3 is in the open state. The prepared purified water flushes the second water supply circuit and is discharged from the water supply terminal. Since the switch valve 5 is in the closed state, the flushing water will not enter the pressure water tank 4, thus avoiding contamination and damage to the pressure water tank 4 caused by the flushing water generated during the water production and flushing procedure. In both of the above flushing states, the closed state of the switch valve 5 can effectively isolate the pressure water tank 4 from the first water supply circuit, and is not affected by the water storage state inside the pressure water tank 4. This prevents impurities such as protective agents in the flushing water from entering the pressure water tank 4 and causing contamination inside the tank, thereby avoiding problems that affect the user's water safety and hygiene; it also reduces the risk of corrosion damage to the air bladder and ensures the normal water supply of the water purification equipment. After the rinsing procedure is completed, the water purification equipment enters the water supply state and sets the switch valve 5 to the open state. At this time, the water switch 3 and the wastewater valve 21 are closed, and the purified water formed by the first filter component 1 can enter the pressure tank 4 through the first water supply circuit for outlet. When the user turns on the water switch 3, the pressure tank 4 provides purified water to the user through the first water supply circuit. When the water level in the pressure tank 4 is low and insufficient to provide a large flow, the first filter component 1 is in the water production state. The purified water outlet of the first filter component 1 simultaneously provides purified water to the user through the second water supply circuit to ensure the pure water flow at the user and save the user's waiting time.

[0031] The first water supply circuit includes a first connecting pipe 61 and a second connecting pipe 62. One end of the first connecting pipe 61 is connected to the pressure tank 4, and the other end is used to connect to the water switch 3. A first bypass port is provided on the first connecting pipe 61. One end of the second connecting pipe 62 is connected to the first bypass port, and the other end is used to connect to the purified water outlet of the first filter assembly 1. The switch valve 5 is located on the first connecting pipe 61, between the first bypass port and the inlet / outlet. When the first filter assembly 1 is producing water and the pressure tank 4 is storing water, the switch valve 5 is in the open state. The purified water produced by the first filter assembly 1 enters the first connecting pipe 61 through the second connecting pipe 62 and the first bypass port, and then enters the pressure tank 4. After the pressure tank 4 has finished storing water, the switch valve 5 is closed to ensure the reliability and safety of water storage. When the pressure tank 4 supplies water, the switch valve 5 is in the open state, and the water stored in the pressure tank 4 flows through the first connecting pipe 61 to the water outlet of the water switch 3. With the first connecting pipe 61 and the second connecting pipe 62, the water storage and water supply of the pressure water tank 4 are independent and will not affect each other.

[0032] In one embodiment, the water purification device further includes a main pipe 7, one end of which is connected to the purified water outlet of the first filter assembly 1, and the other end of which is connected to the water switch 3. A second bypass port is provided on the main pipe 7, and the end of the second connecting pipe 62 away from the first connecting pipe 61 is connected to the second bypass port. Downstream of the second bypass port, the main pipe 7 forms a second water supply path along the direction of purified water flow. When the first filter assembly 1 is in water-producing mode and the pressure tank 4 is storing water, the purified water supplied by the purified water outlet of the first filter assembly 1 enters the second connecting pipe 62 via the main pipe 7 and the second bypass port. When both the pressure tank 4 and the first filter assembly 1 need to supply water to the water-using end simultaneously, the purified water supplied by the first filter assembly 1 in water-producing mode and its purified water outlet flows through the main pipe 7 to the water-using end at the water switch 3.

[0033] The water purification equipment also includes a one-way high-pressure switch 8 installed on the main pipe 7, located upstream of the second bypass port along the flow direction. The one-way high-pressure switch 8 controls the opening and closing of the main pipe 7, thereby controlling the switching of the water production state of the first filter assembly 1. When the pressure tank 4 is storing water, the one-way high-pressure switch 8 is open, allowing the purified water from the first filter assembly 1 to flow to the pressure tank 4 via the first water supply path. After the pressure tank 4 has finished storing water, the one-way high-pressure switch 8 closes, and the first filter assembly 1 stops producing water. When the pressure tank 4 is supplying water, if the one-way high-pressure switch 8 detects a pressure value lower than a preset pressure, the one-way high-pressure switch 8 opens, and the first filter assembly 1 switches to the water production state. The one-way high-pressure switch 8 improves the stability of the water flow at the water outlet.

[0034] A pipe joint 63 is provided on the first connecting pipe 61, and the switch valve 5 is detachably connected to the pipe joint 63 to close or open the first connecting pipe 61, such as... Figure 2 As shown, the switching valve 5 is mounted on the first connecting pipe 61 by four connecting screws 64.

[0035] The water purification equipment also includes a post-filter assembly 9, which is located between the water switch 3 and the pressure water tank 4. The post-filter assembly 9 is used to filter the water supplied to the pressure water tank 4 to further improve the cleanliness of the water supplied to the pressure water tank 4.

[0036] Along the direction of water flow, the outlet of the first water supply path is connected to the inlet of the post-filter assembly 9. The outlet of the first water supply path is connected to the inlet of the post-filter assembly 9 through the main pipe 7. When the first filter assembly 1 and the pressure tank 4 simultaneously supply purified water to the water user, the post-filter assembly 9 can further purify the purified water supplied by the first filter assembly 1 and the pressure tank 4.

[0037] The post-filtration assembly 9 includes a plurality of corresponding post-outlet pipes 91 and a plurality of post-filter elements 92. The post-filter elements 92 are disposed on the post-outlet pipes 91, and the plurality of post-outlet pipes 91 are arranged in parallel. For example, as... Figure 1 As shown, in one embodiment, the post-filtration assembly 9 includes three post-outlet pipes 91 and three post-filter cartridges 92. The multiple post-filter cartridges 92 arranged in parallel improve filtration efficiency and ensure a large flow rate of water.

[0038] The first filtration assembly 1 includes a composite filter element 11 and an RO membrane reverse osmosis filter element 12 arranged sequentially along the raw water flow direction. An inlet valve 13 and a booster pump 14 are provided between the composite filter element 11 and the RO membrane reverse osmosis filter element 12. The composite filter element 11 includes a PP filter element and a CTO filter element.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A water purification device, comprising a first filter assembly (1), a wastewater drainage pipe (2), and a water supply switch (3), characterized in that, The water purification equipment also includes a pressure water tank (4), the inlet end of the first filter component (1) is connected to the raw water supply end (100), the first filter component (1) is connected to the wastewater drainage pipe (2), the wastewater drainage pipe (2) is provided with a wastewater valve (21), a first water supply line and a second water supply line are provided in parallel between the purified water outlet end of the first filter component (1) and the water switch (3), the pressure water tank (4) is located in the first water supply line, and a switch valve (5) is provided at the inlet and outlet of the pressure water tank (4), the switch valve (5) is used to control the connection and disconnection of the pressure water tank (4) and the first water supply line, wherein the water purification equipment has a flushing state and a water supply state. In the flushing state, when the pipeline between the first filter component (1) and the raw water supply end (100) is connected, and at least one of the water switch (3) and the wastewater valve (21) is in the open state, the switch valve (5) is in the closed state.

2. The water purification equipment according to claim 1, characterized in that, The first water supply circuit includes a first connecting pipe (61) and a second connecting pipe (62). One end of the first connecting pipe (61) is connected to the pressure water tank (4), and the other end of the first connecting pipe (61) is used to connect to the water switch (3). A first bypass port is provided on the first connecting pipe (61). One end of the second connecting pipe (62) is connected to the first bypass port, and the other end is used to connect to the purified water outlet of the first filter assembly (1). The switch valve (5) is set on the first connecting pipe (61) and is located between the first bypass port and the inlet / outlet.

3. The water purification equipment according to claim 2, characterized in that, The water purification equipment also includes a main pipe (7), one end of which is connected to the purified water outlet of the first filter assembly (1), and the other end of which is used to connect to the water switch (3). A second bypass port is provided on the main pipe (7), and the end of the second connecting pipe (62) away from the first connecting pipe (61) is connected to the second bypass port. Along the direction of purified water flow, the main pipe (7) downstream of the second bypass port forms the second water supply path.

4. The water purification equipment according to claim 3, characterized in that, The water purification equipment also includes a one-way high-pressure switch (8) installed on the main pipe (7), and the one-way high-pressure switch (8) is located upstream of the second bypass port along the water flow direction.

5. The water purification equipment according to claim 2, characterized in that, The first connecting pipe (61) is provided with a pipe joint (63), and the switch valve (5) is detachably connected to the pipe joint (63) to close or open the first connecting pipe (61).

6. The water purification equipment according to claim 1, characterized in that, The water purification equipment also includes a post-filter assembly (9), which is located between the water switch (3) and the pressure water tank (4). The post-filter assembly (9) is used to filter the water supplied to the pressure water tank (4).

7. The water purification equipment according to claim 6, characterized in that, Along the direction of water flow, the outlet of the first water supply path is connected to the inlet of the post-filter assembly (9).

8. The water purification equipment according to claim 6, characterized in that, The post-filtration assembly (9) includes a plurality of post-outlet pipes (91) and a plurality of post-filter elements (92) that correspond one-to-one. The post-filter elements (92) are disposed on the post-outlet pipes (91), and the plurality of post-outlet pipes (91) are arranged in parallel.

9. The water purification equipment according to claim 8, characterized in that, The post-filter (92) is an activated carbon filter.

10. The water purification device according to any one of claims 1-9, characterized in that, The first filtration assembly (1) includes a composite filter element (11) and an RO membrane reverse osmosis filter element (12) arranged sequentially along the raw water flow direction.

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