Integrated water purification equipment

Abstract

The utility model discloses integrated water purification equipment and relates to the technical field of water treatment. The integrated water purification equipment at least comprises a first-stage filter, a second-stage filter and a third-stage filter which are sequentially communicated in series, a water inlet of the second-stage filter is communicated with a water outlet of the first-stage filter, a water inlet of the third-stage filter is communicated with a water outlet of the second-stage filter, the first-stage filter is a multi-medium filter, and the second-stage filter is a multi-medium filter. A filter material layer comprises an anthracite layer, a quartz sand layer and a gravel layer which are sequentially arranged from top to bottom, the second-stage filter and the third-stage filter are activated carbon filters, a filter material layer of the second-stage filter is a high-adsorbability coconut shell activated carbon layer, and a filter material layer of the third-stage filter is a high-density sintered carbon rod layer. The integrated water purification equipment at least comprises a three-stage series filter structure, impurities of different sizes and types are removed stage by stage through multi-stage filtration, the defect that a filter material of a single-stage filter is prone to overload and blockage is overcome, and the service life is prolonged.

Description

Technical Field

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

[0002] In water treatment scenarios such as deep purification of industrial wastewater (e.g., chemical and electroplating wastewater), pretreatment of municipal water supply, and terminal treatment of household drinking water, mechanical filters are water treatment devices that, under the action of gravity, pressure, or centrifugal force, allow the liquid in the suspension to pass through the channels of a porous medium, while the solid particles in the water are trapped on the medium, thereby achieving solid-liquid separation. Some existing single-stage or double-stage mechanical filters have the following defects when in use: (1) They have a single function and can only remove specific impurities, making them suitable for a limited range of water qualities; (2) The filter media is prone to overload and clogging, resulting in a short lifespan. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an integrated water purification device, which includes at least a three-stage series filtration architecture. Through multi-stage filtration, impurities of different sizes and types are removed step by step, eliminating the disadvantage of single-stage filter media being prone to overload and clogging, and extending service life.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An integrated water purification device includes at least a primary filter, a secondary filter, and a tertiary filter connected in series. The inlet of the secondary filter is connected to the outlet of the primary filter, and the inlet of the tertiary filter is connected to the outlet of the secondary filter. The primary filter is a multi-media filter, and its filter media layer includes an anthracite layer, a quartz sand layer, and a gravel layer arranged from top to bottom. The secondary and tertiary filters are activated carbon filters. The filter media layer of the secondary filter is a highly adsorption coconut shell activated carbon layer, and the filter media layer of the tertiary filter is a high-density sintered carbon rod layer.

[0006] Furthermore, the primary, secondary, and tertiary filters all include a tank and a water pipe assembly. The filter media layer is located inside the tank. The water pipe assembly includes a first pipe, a second pipe, an inlet pipe, and an outlet pipe. The tank has an inlet port at the top and an outlet port at the bottom. The upper end of the first pipe is connected to the inlet port, and the lower end is connected to the inlet pipe. One end of the second pipe is connected to the outlet port, and the other end is connected to the outlet pipe. An inlet valve is installed on the inlet pipe, and an outlet valve is installed on the outlet pipe. The inlet is located on the inlet pipe, and the outlet is located on the outlet pipe.

[0007] Furthermore, a connecting pipe is provided between the inlet of the secondary filter and the outlet of the primary filter, and between the inlet of the tertiary filter and the outlet of the secondary filter. The two ends of the connecting pipe are respectively plugged into the inlet and the outlet.

[0008] Furthermore, the water pipe assembly also includes a backwash pipe that is connected to the second pipe and is equipped with a backwash inlet valve.

[0009] Furthermore, the top of the tank is equipped with an exhaust port, which is connected to an exhaust pipe extending downwards, and an exhaust valve is installed on the exhaust pipe.

[0010] Furthermore, the tank is equipped with a sight glass.

[0011] Compared with the prior art, this utility model achieves at least the following beneficial effects:

[0012] This integrated water purification system includes at least a three-stage cascade filtration architecture. Through multi-stage filtration, it removes impurities of different sizes and types step by step, eliminating the drawbacks of single-stage or dual-stage mechanical filters where the filter media is prone to overload, and improving the pollutant removal rate. The three-stage cascade filtration architecture can efficiently intercept suspended solids (SS), colloidal particles, organic matter (COD / BOD), residual chlorine, heavy metals (such as lead and mercury), and odors, making it particularly suitable for the purification needs of high turbidity or complex polluted water sources. The secondary and tertiary filters target the synergistic adsorption of heavy metals and organic matter, eliminating the defect of traditional activated carbon filter media being prone to saturation, extending the filter media life, and adapting to the needs of the circular economy. The whole unit has a small footprint and is suitable for installation in confined spaces. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0014] Figure 2 This is a schematic diagram of the tank and water pipe assembly according to an embodiment of this application;

[0015] Figure 3 This is a side view of the tank and water pipe assembly according to an embodiment of this application.

[0016] The diagram is labeled as follows: 1. Primary filter; 2. Secondary filter; 3. Tertiary filter; 4. Inlet; 5. Outlet; 6. Vent pipe; 61. Vent valve; 7. Connecting pipe; 100. Tank; 101. Inlet interface; 102. Outlet interface; 103. Vent; 104. Sight glass; 200. Water pipe assembly; 201. First pipe; 202. Second pipe; 203. Inlet pipe; 2031. Inlet valve; 204. Outlet pipe; 2041. Outlet valve; 205. Backwash pipe; 2051. Backwash inlet valve. Detailed Implementation

[0017] The present invention will now be described in detail with reference to exemplary embodiments shown in the accompanying drawings. However, it should be understood that the present application may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of this application more complete and to fully convey the concept of the present application to those skilled in the art.

[0018] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0019] like Figures 1-3As shown in the embodiment of this application, an integrated water purification device includes at least a primary filter 1, a secondary filter 2, and a tertiary filter 3 connected in series. The inlet 4 of the secondary filter 2 is connected to the outlet 5 of the primary filter 1, and the inlet 4 of the tertiary filter 3 is connected to the outlet 5 of the secondary filter 2. The primary filter 1 is a multi-media filter, and its filter media layer includes, from top to bottom, a layer of anthracite, a layer of quartz sand, and a layer of gravel. The secondary filter 2 and the tertiary filter 3 are activated carbon filters. The filter media layer of the secondary filter 2 is a layer of highly adsorbent coconut shell activated carbon, and the filter media layer of the tertiary filter 3 is a layer of high-density sintered carbon rods. The primary filter 1, secondary filter 2, and tertiary filter 3 are not limited to the above-mentioned mechanical filter types and can be flexibly selected according to actual filtration requirements.

[0020] Optionally, the filter media layer of the primary filter 1 is composed of filter media with different densities, particle sizes, and materials. The anthracite layer has a particle size of 0.8–2 mm and is used to remove larger suspended solids and particles. The quartz sand layer has a particle size of 0.5–1.2 mm and is used to remove medium-sized particles. The gravel layer has a particle size of 2–8 mm and is used to support the upper filter media and evenly distribute the water flow. Through the physical interception and deep adsorption of the multi-media filter media layer, it can remove suspended solids and silt >50 μm from the raw water and reduce turbidity to ≤1 NTU. The highly adsorbent coconut shell activated carbon layer of the secondary filter 2 has an iodine value ≥1000 mg / g. Through microporous adsorption and chemical reduction reaction, it removes dissolved organic matter (such as benzene compounds and pesticide residues) and residual chlorine (removal rate ≥95%). The high-density sintered carbon rod layer of the tertiary filter 3 has a pore size ≤5 μm, which further intercepts micron-sized particles and adsorbs heavy metal ions (such as lead and cadmium, removal rate ≥90%), while adjusting the pH value of the water to the neutral range.

[0021] This integrated water purification system employs at least a three-stage cascade filtration architecture, eliminating the drawbacks of single-stage or dual-stage mechanical filters where the filter media is prone to overload. The pollutant removal rate is 40% higher than that of single-stage equipment. It targets the synergistic adsorption of heavy metals and organic matter, avoiding the saturation problem of traditional activated carbon filter media. The filter media lifespan is extended by 30% (multi-media filter media lifespan ≥ 12 months, activated carbon filter media lifespan ≥ 6 months), meeting the needs of a circular economy. It can efficiently intercept suspended solids (SS), colloidal particles, organic matter (COD / BOD), residual chlorine, heavy metals (such as lead and mercury), and odors, making it particularly suitable for purifying high-turbidity or complexly polluted water sources. The unit has a small footprint, making it suitable for installation in confined spaces.

[0022] In some embodiments, the primary filter 1, the secondary filter 2, and the tertiary filter 3 each include a tank 100 and a water pipe assembly 200. The filter media layer is disposed inside the tank 100. The water pipe assembly 200 includes a first pipe 201, a second pipe 202, an inlet pipe 203, and an outlet pipe 204. The tank 100 has an inlet port 101 at the top and an outlet port 102 at the bottom. The upper end of the first pipe 201 is connected to the inlet port 101, and the lower end is connected to the inlet pipe 203. One end of the second pipe 202 is connected to the outlet port 102, and the other end is connected to the outlet pipe 204. An inlet valve 2031 is installed on the inlet pipe 203, and an outlet valve 2041 is installed on the outlet pipe 204. An inlet 4 is disposed on the inlet pipe 203, and an outlet 5 is disposed on the outlet pipe 204. When the integrated water purification equipment enters the filtration working state, the inlet valve 2031 and the outlet valve 2041 are opened, and the other valves are closed. Water enters from the inlet 4, enters the tank from the top through the inlet pipe 203 and the first pipe 201, is filtered through the filter media layer, and then exits from the bottom of the tank through the second pipe 202 and the outlet pipe 204 and exits from the outlet 5.

[0023] In addition, a connecting pipe 7 is provided between the inlet 4 of the secondary filter 2 and the outlet 5 of the primary filter 1, and between the inlet 4 of the tertiary filter 3 and the outlet 5 of the secondary filter 2. The two ends of the connecting pipe 7 are respectively connected to the inlet 4 and the outlet 5, realizing quick connection between each level of filter. Each level of filter can independently perform filtration, backwashing, and forward washing. When the filters of each level are connected through the connecting pipe 7, multi-stage series filtration can be realized to achieve high-precision water treatment. Furthermore, the tank 100 of each level of filter is provided with an inlet interface 101 at the top and an outlet interface 102 at the bottom. The first pipe 201 and the second pipe 202 are respectively quick-connected to the inlet interface 101 and the outlet interface 102, supporting independent replacement of a single tank 100. For example, the tank 100 of the primary filter 1, i.e., the multi-media filter, can be disassembled separately for cleaning.

[0024] The water pipe assembly 200 also includes a backwash pipe 205, which is connected to the second pipe 202. A backwash inlet valve 2051 is installed on the backwash pipe 205. The backwash cleaning program is triggered by a timer or when the pressure difference between the filter inlet and outlet reaches a specified value. When each stage of the filter enters the backwash working state, the backwash inlet valve 2051 and the inlet valve 2031 are opened, and the other valves are closed. Water enters from the backwash pipe 205, enters the tank from the bottom through the second pipe 202, passes through the filter media layer, and the water flow backwashes the impurities accumulated on the filter media layer. The wastewater is then discharged from the top of the tank through the first pipe 201 and the inlet pipe 203 and from the inlet 4, reducing the frequency of manual maintenance.

[0025] The top of the tank 100 is also provided with an exhaust port 103, which is connected to an exhaust pipe 6 extending downwards. An exhaust valve 61 is installed on the exhaust pipe 6. By opening the exhaust valve 61, the air accumulated inside the filter is discharged through the exhaust pipe 6, avoiding the formation of air blockage and ensuring the normal operation and efficient filtration of the filter.

[0026] The tank 100 is equipped with a sight glass 104, which allows staff to observe the internal condition of the tank 100 in a timely manner so that problems can be detected and maintained or replaced.

[0027] It should be understood that all the above embodiments are exemplary and not restrictive. Any modifications, equivalent changes and alterations made by those skilled in the art to the specific embodiments described above under the concept of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An integrated water purification apparatus, characterized by: The filter comprises at least a primary filter, a secondary filter and a tertiary filter connected in series, the water inlet of the secondary filter is communicated with the water outlet of the primary filter, and the water inlet of the tertiary filter is communicated with the water outlet of the secondary filter.

2. The integrated water purification apparatus according to claim 1, characterized by: The primary filter, the secondary filter and the tertiary filter each comprise a tank body and a water pipe assembly, the filter material layer is arranged in the tank body, the water pipe assembly comprises a first pipe, a second pipe, a water inlet pipe and a water outlet pipe, the tank body is provided with a water inlet interface at the top and a water outlet interface at the bottom, the upper end of the first pipe is communicated with the water inlet interface, and the lower end of the first pipe is communicated with the water inlet pipe, one end of the second pipe is communicated with the water outlet interface, and the other end of the second pipe is communicated with the water outlet pipe, a water inlet valve is arranged on the water inlet pipe, a water outlet valve is arranged on the water outlet pipe, the water inlet is arranged on the water inlet pipe, and the water outlet is arranged on the water outlet pipe.

3. The integrated water purification apparatus of claim 2, wherein: A connecting pipe is arranged between the water inlet of the secondary filter and the water outlet of the primary filter and between the water inlet of the tertiary filter and the water outlet of the secondary filter, and the two ends of the connecting pipe are respectively inserted and communicated with the water inlets and the water outlets.

4. The integrated water purification apparatus of claim 2, wherein: The water pipe assembly further comprises a backwashing pipe communicated with the second pipe, and a backwashing water inlet valve is arranged on the backwashing pipe.

5. The integrated water purification apparatus of claim 2, wherein: The tank body is further provided with an exhaust port connected with a downwardly extending exhaust pipe, and an exhaust valve is arranged on the exhaust pipe.

6. The integrated water purification apparatus of claim 2, wherein: The tank body is provided with a sight glass.

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