Multi-stage composite double-water quality drinking water purifying equipment

Abstract

The application discloses a multi-stage composite double-water-quality drinking water purifying equipment, and relates to the technical field of water treatment equipment.The multi-stage composite double-water-quality drinking water purifying equipment comprises a main body shell, a double-water-quality purifying mechanism is arranged in the main body shell, core components such as a water storage tank support, a double-path shunt valve and two sets of independent purification links are arranged in the double-water-quality purifying mechanism, a top cover plate and a sealing rubber ring are arranged to ensure sealing protection, raw water is shunted by the double-path shunt valve after being pretreated, normal ultrafiltration membrane components are used to produce washing and cleaning water, high-level ultrafiltration membrane and reverse osmosis membrane components are used to produce drinking water, and reverse osmosis wastewater is recycled to the washing and cleaning link.The multi-stage composite double-water-quality drinking water purifying equipment realizes double-water-quality differentiated adaptation, improves water resource and energy utilization, guarantees stable water supply of large flow, optimizes user experience, and is suitable for multiple scenes such as families and offices.

Description

Technical Field

[0001] This invention relates to the field of water treatment equipment technology, and in particular to a multi-stage composite dual-water-quality drinking water purification device. Background Technology

[0002] With the improvement of people's living standards and the enhancement of health awareness, the requirements for drinking water quality are increasing day by day. Water purification equipment has become an essential facility in homes and various public places. At present, most water purifiers on the market use a single reverse osmosis water purification technology to produce high-quality drinking water through high-precision filtration. Its core design goal is to ensure the safety and purity of drinking water. However, in actual use, existing water purifiers have gradually exposed many insurmountable defects and cannot meet the diverse water needs of users.

[0003] Existing water purifiers can only produce one type of high-purity purified water. However, in users' daily water usage scenarios, the demand for water for washing and personal hygiene is far greater than the demand for drinking water. Furthermore, the purity requirements for water used for washing and personal hygiene are much lower than those for drinking water. Using high-purity purified water for both drinking and washing is an excessive consumption of resources and constitutes unnecessary waste. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a multi-stage composite dual-water quality drinking water purification device that can solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage composite dual-water-quality drinking water purification device, comprising a main body shell, wherein anti-slip rubber feet are fixedly connected to the four corners of the bottom of the main body shell, a display screen is fixedly connected to the upper front of the main body shell, a drinking water faucet is provided on the left side below the display screen, and a washing water faucet is provided on the right side below the display screen. The drinking water faucet and the washing water faucet are fixedly connected to the main body shell, and a dual-water-quality purification mechanism is provided on the main body shell, the dual-water-quality purification mechanism including a water storage tank bracket, which is fixedly connected to the bottom of the main body shell.

[0006] Preferably, a top cover plate is fixedly connected to the top of the main body shell, a sealing ring is provided at the bottom of the top cover plate, and cover plate fixing holes are provided at the four corners of the top cover plate. The top cover plate is fixed to the main body shell with bolts through the cover plate fixing holes, and ventilation openings are fixedly connected to both sides of the main body shell.

[0007] Preferably, a hot drinking water storage tank is fixedly connected to one side of the water tank support, and a hot washing water storage tank is fixedly connected to the other side of the water tank support. A high-level ultrafiltration membrane assembly is provided above the hot washing water storage tank, and the high-level ultrafiltration membrane assembly is fixedly connected to one side of the middle part of the main body shell.

[0008] Preferably, the high-level ultrafiltration membrane module is provided with a pretreatment unit support on the top, the pretreatment unit support is fixedly connected to the upper part of the main body shell, a PP cotton filter element is fixedly connected to the pretreatment unit support, an activated carbon filter element is provided on one side of the PP cotton filter element, and the activated carbon filter element is fixedly connected to the pretreatment unit support.

[0009] Preferably, a wastewater recovery pump is provided on one side of the hot drinking water storage tank. The wastewater recovery pump is fixedly connected to the bottom of the main body casing. A one-way valve is fixedly connected to the wastewater recovery pump. A high-pressure pump is provided above the wastewater recovery pump and is fixedly connected to the rear side of the main body casing.

[0010] Preferably, a conventional ultrafiltration membrane module is provided above the wastewater recovery pump, and a purification unit bracket is fixedly connected to the conventional ultrafiltration membrane module. The purification unit bracket is fixedly connected to the upper side of the main body shell. A reverse osmosis membrane module is provided below the conventional ultrafiltration membrane module and is fixedly connected to the middle side of the main body shell.

[0011] Preferably, a post-activated carbon filter element is fixedly connected to the rear side of the middle part of the main body shell. A dual-way diversion valve is provided on one side of the post-activated carbon filter element. A fixing lug is fixedly connected to the dual-way diversion valve. An adjustment handle is provided on the dual-way diversion valve. The dual-way diversion valve is fixedly connected to the rear side of the main body shell through the fixing lug.

[0012] Preferably, the post-activated carbon filter element and the high-level ultrafiltration membrane assembly are both fixedly connected to the outer shell of the main unit via a purification unit bracket.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This multi-stage composite dual-water quality drinking water purification equipment produces two types of purified water suitable for washing and drinking through differentiated purification chain design, and achieves precise supply, so that the water quality supply is highly matched with the water use scenario, which not only ensures the safety and purity of drinking water, but also avoids excessive consumption of resources, effectively adapting to diversified water use needs.

[0015] 2. This multi-stage composite dual-water quality drinking water purification equipment reduces water waste through a wastewater recycling and reuse mechanism. At the same time, it adopts an independent heating system for targeted heating, reducing ineffective energy consumption. It improves resource utilization efficiency from both water and electricity saving perspectives, effectively reducing long-term operating costs for users and conforming to the trend of energy conservation and environmental protection.

[0016] 3. This multi-stage composite dual-water quality drinking water purification equipment is designed with dedicated water supply links for different water use scenarios, ensuring the high flow rate of water needed for washing and rinsing. At the same time, by storing water in advance to avoid flow fluctuations, it effectively improves the stability of water supply and significantly optimizes the user experience. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a schematic diagram of a multi-stage composite dual-water-quality drinking water purification device according to the present invention;

[0019] Figure 2 This is a bottom view schematic diagram of a multi-stage composite dual-water quality drinking water purification device according to the present invention;

[0020] Figure 3 This is a schematic diagram of the internal cross-section of a multi-stage composite dual-water quality drinking water purification device according to the present invention.

[0021] Figure 4 This is a schematic diagram on the right of the internal cross-section of a multi-stage composite dual-water quality drinking water purification device of the present invention;

[0022] Figure 5 For the present invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 6 For the present invention Figure 3 Enlarged diagram of point B in the middle.

[0024] Reference numerals: 1. Main unit casing; 2. Anti-slip rubber feet; 3. Ventilation vent; 4. Drinking water faucet; 5. Washing water faucet; 6. Display screen; 7. Top cover; 8. Sealing ring; 9. Cover fixing hole; 10. Water storage tank bracket; 11. Hot washing water storage tank; 12. Hot drinking water storage tank; 13. One-way valve; 14. Wastewater recovery pump; 15. High-pressure pump; 16. Reverse osmosis membrane module; 17. Ordinary ultrafiltration membrane module; 18. Post-activated carbon filter element; 19. Pretreatment unit bracket; 20. Activated carbon filter element; 21. PP cotton filter element; 22. High-grade ultrafiltration membrane module; 23. Purification unit bracket; 24. Dual-way diversion valve; 25. Adjustment handle; 26. Fixing lug. Detailed Implementation

[0025] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0027] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0029] Please see Figure 1-6 The present invention provides a technical solution: a multi-stage composite dual-water quality drinking water purification device, including a main body shell 1, with anti-slip rubber feet 2 fixedly connected to the four corners of the bottom of the main body shell 1, a display screen 6 fixedly connected to the upper front of the main body shell 1, a drinking water faucet 4 arranged on the lower left side of the display screen 6, and a washing water faucet 5 arranged on the lower right side of the display screen 6. The drinking water faucet 4 and the washing water faucet 5 are fixedly connected to the main body shell 1. A dual-water quality purification mechanism is provided on the main body shell 1, and the dual-water quality purification mechanism includes a water tank bracket 10, which is fixedly connected to the bottom of the main body shell 1.

[0030] A top cover plate 7 is fixedly connected to the top of the main body shell 1. A sealing ring 8 is provided at the bottom of the top cover plate 7. There are cover plate fixing holes 9 at the four corners of the top cover plate 7. The top cover plate 7 is fixed to the main body shell 1 with bolts through the cover plate fixing holes 9. Ventilation openings 3 are fixedly connected to both sides of the main body shell 1.

[0031] A hot drinking water storage tank 12 is fixedly connected to one side of the water storage tank bracket 10, and a hot washing water storage tank 11 is fixedly connected to the other side of the water storage tank bracket 10. A high-level ultrafiltration membrane assembly 22 is installed above the hot washing water storage tank 11, and the high-level ultrafiltration membrane assembly 22 is fixedly connected to one side of the middle part of the main body shell 1.

[0032] The high-level ultrafiltration membrane module 22 is provided with a pretreatment unit support 19 on the top. The pretreatment unit support 19 is fixedly connected to the upper part of the main body shell 1. A PP cotton filter element 21 is fixedly connected to the pretreatment unit support 19. An activated carbon filter element 20 is provided on one side of the PP cotton filter element 21. The activated carbon filter element 20 is fixedly connected to the pretreatment unit support 19.

[0033] PP cotton filter cartridge 21 performs preliminary filtration of external raw water, effectively intercepting large particulate impurities such as mud, rust, and insect eggs in the raw water, preventing the subsequent precision filter components from being clogged, and ensuring the normal operation and service life of the subsequent purification components. Activated carbon filter cartridge 20 performs adsorption treatment on the raw water filtered by PP cotton, removing residual chlorine, odors and some organic matter in the raw water, improving the taste and basic safety of the water, and preparing for subsequent differentiated purification.

[0034] A wastewater recovery pump 14 is installed on one side of the hot drinking water storage tank 12. The wastewater recovery pump 14 is fixedly connected to the bottom of the main body shell 1. A one-way valve 13 is fixedly connected to the wastewater recovery pump 14. A high-pressure pump 15 is installed above the wastewater recovery pump 14. The high-pressure pump 15 is fixedly connected to the rear side of the main body shell 1.

[0035] A conventional ultrafiltration membrane module 17 is installed above the wastewater recovery pump 14. A purification unit bracket 23 is fixedly connected to the conventional ultrafiltration membrane module 17. The purification unit bracket 23 is fixedly connected to the upper side of the main body shell 1. A reverse osmosis membrane module 16 is installed below the conventional ultrafiltration membrane module 17. The reverse osmosis membrane module 16 is fixedly connected to the middle side of the main body shell 1.

[0036] The high-pressure pump model 15 is a DC-24V DC booster pump, which provides stable high-pressure power for filtration, ensuring that the reverse osmosis membrane can perform its filtration function efficiently and guaranteeing the purity and output efficiency of high-grade drinking water.

[0037] The ordinary ultrafiltration membrane module 17 filters impurities such as colloids, bacteria, and macromolecular organic matter in water through an ultrafiltration membrane with a pore size of 0.01μm, producing ordinary purified water for washing and ensuring a stable supply of purified water for washing and washing. The high-grade ultrafiltration membrane module 22 provides high-quality raw water for subsequent deep purification by reverse osmosis membrane, ensuring the purification effect of high-grade drinking water, while ensuring smooth water supply.

[0038] A post-activated carbon filter element 18 is fixedly connected to the rear side of the middle part of the main body shell 1. A dual-way diversion valve 24 is provided on one side of the post-activated carbon filter element 18. A fixing lug 26 is fixedly connected to the dual-way diversion valve 24. An adjustment handle 25 is provided on the dual-way diversion valve 24. The dual-way diversion valve 24 is fixedly connected to the rear side of the main body shell 1 through the fixing lug 26.

[0039] The post-activated carbon filter element 18 and the high-level ultrafiltration membrane module 22 are both fixedly connected to the main body shell 1 through the purification unit bracket 23.

[0040] Working principle: External raw water is introduced into the pretreatment unit inside the main body shell 1 through a pipeline. At this stage, the core relies on the PP cotton filter element 21 and activated carbon filter element 20 fixed on the pretreatment unit bracket 19 to complete the initial purification. First, the raw water enters the PP cotton filter element 21, whose internal 5μm pore size filter material can efficiently intercept large particulate impurities such as mud, rust, and insect eggs in the raw water, avoiding clogging of the subsequent precision filtration components. The raw water after initial filtration then flows into the activated carbon filter element 20 on one side. Through the adsorption effect of coconut shell activated carbon, residual chlorine, odor and some organic matter in the raw water are removed, improving the taste and basic safety of the water. The pretreated raw water is transported to the dual diversion valve 24 through a pipeline to prepare for subsequent differentiated purification. During this stage, the ventilation ports 3 on both sides of the main body shell 1 are opened simultaneously to provide a ventilation and heat dissipation environment for the internal components and ensure the stable operation of the pretreatment unit.

[0041] The pretreated raw water is divided into two streams by the dual-flow valve 24 and enters different purification links to achieve differentiated output of ordinary washing water and high-level drinking water. The core relies on the adjustment handle 25 to flexibly control the on / off state and flow ratio of the two streams. The dual-flow valve 24 is stably fixed to the rear side of the main body shell 1 by the fixing ear 26 to ensure the stability of the diversion process.

[0042] One of the raw water channels from the dual-channel diversion valve 24 is directly delivered to the ordinary ultrafiltration membrane module 17. The ordinary ultrafiltration membrane module 17 is fixed to the upper side of the main body shell 1 by the purification unit bracket 23. The ultrafiltration membrane with a pore size of 0.01μm inside can further filter impurities such as colloids, bacteria, and large molecular organic matter in the water to produce ordinary purified water that meets the hygiene requirements for washing water. The purified ordinary washing water is directly delivered to the hot washing water storage tank 11 through the pipeline, waiting to be heated for use.

[0043] The other source of raw water, split off by the dual-channel diversion valve 24, is first delivered to the high-level ultrafiltration membrane module 22. The high-level ultrafiltration membrane module 22 is fixed to one side of the middle part of the main body shell 1 and is further fixed by the purification unit bracket 23. The raw water undergoes secondary fine filtration to further improve the water purity. The raw water after being filtered by the high-level ultrafiltration membrane is delivered to the high-pressure pump 15 through the pipeline. The high-pressure pump 15 is fixed to the rear side of the main body shell 1 to provide high-pressure power for subsequent reverse osmosis filtration.

[0044] Under the action of the high-pressure pump 15, the raw water is pressurized and transported to the reverse osmosis membrane module 16. The reverse osmosis membrane can efficiently remove heavy metal ions, antibiotics, pesticide residues and other tiny harmful substances in the water, producing primary drinking water with extremely high purity. The primary drinking water then flows into the post-activated carbon filter 18. Through the re-adsorption of the post-activated carbon, the taste of the water is further optimized, and finally high-grade drinking water is produced. It is then transported through pipelines to the hot drinking water storage tank 12, waiting to be heated for use.

[0045] In the high-level drinking water purification chain, the reverse osmosis membrane module 16 will generate a certain amount of wastewater when it is working. In order to avoid water waste, the wastewater generated by the reverse osmosis membrane module 16 is transported to the wastewater recovery pump 14 through the pipeline. The wastewater recovery pump 14 is fixed inside the bottom of the main body shell 1 and is located on one side of the hot drinking water storage tank 12. It controls the flow of wastewater through the one-way valve 13 to prevent wastewater backflow.

[0046] Driven by the wastewater recovery pump 14, the recovered wastewater is transported to the hot water storage tank 11 for washing and cleaning, where it is mixed with the ordinary purified water produced by the ordinary water purification chain and used together as the water source for washing and cleaning, thereby achieving efficient use of water resources and greatly improving the water resource utilization rate.

[0047] Both the hot drinking water storage tank 12 and the hot washing water storage tank 11 are fixed to the bottom of the main body shell 1 by the storage tank bracket 10. They store high-grade drinking water and mixed washing water respectively. Then, they are heated by two independent heating systems to meet the temperature requirements of different water use scenarios.

[0048] Hot drinking water heating: The heating component inside the hot drinking water storage tank 12 is activated to heat the high-grade drinking water in the tank to 85-95℃. After heating is completed, it is kept at a constant temperature and is ready for the user to use.

[0049] Hot water heating for washing: The heating component inside the hot water storage tank 11 is activated to heat the mixed purified water in the tank to 40-50℃, and maintains a constant temperature to meet the user's temperature requirements for washing.

[0050] During this stage, display screen 6 displays real-time information such as water temperature and water level in the two water storage tanks, making it convenient for users to monitor the equipment's operating status in real time.

[0051] When a user has a water demand, precise water dispensing can be achieved by operating the control switch of the corresponding faucet. When the user triggers the control switch of the drinking water faucet 4, high-grade drinking water that has been heated to the set temperature in the hot drinking water storage tank 12 is delivered to the drinking water faucet 4 through the pipeline, achieving precise supply of drinking water. When the user triggers the control switch of the washing water faucet 5, mixed purified water that has been heated to the set temperature in the hot washing water storage tank 11 is delivered to the washing water faucet 5 through the pipeline, achieving precise supply of washing water.

[0052] The sealing ring 8 at the bottom of the top cover 7 can effectively seal the connection between the main body housing 1 and the top cover 7, preventing internal components from getting damp or dust from entering. The top cover 7 is fixed to the top of the main body housing 1 with bolts through the cover fixing holes 9 at the four corners, ensuring the airtightness of the equipment.

[0053] The anti-slip rubber feet 2 at the four corners of the bottom of the main body shell 1 ensure that the equipment is placed stably and avoids shaking during operation, while also playing a role in anti-slip and shock absorption.

[0054] Structural Description:

[0055] Main body shell 1: As the core load-bearing structure of the equipment, it has reserved space for the installation of various components inside, and sets the installation positions for components such as display screen and faucet on the outside. It has ventilation structures on both sides, reserved cover plate installation position on the top, and set support feet installation structure at the four corners of the bottom. It can realize the orderly assembly of all internal components, provide a stable installation foundation for each component, ensure ventilation and heat dissipation during the operation of internal components, and protect internal components to avoid the impact of the external environment on the components.

[0056] Anti-slip rubber feet 2: Fixedly connected to the four corners of the bottom of the main body shell 1, which can enhance the stability of the equipment when it is placed, prevent the equipment from shaking during operation, and at the same time play an anti-slip role, prevent the equipment from shifting, and also buffer the vibration generated during the operation of the equipment, reduce the impact of vibration on the internal components of the equipment, and improve the stability of the equipment operation.

[0057] Ventilation port 3: Fixedly connected to both sides of the main body shell 1, it can realize the air circulation between the inside of the equipment and the outside, dissipate the heat generated by the internal components during operation in a timely manner, avoid the internal temperature from being too high and affecting the working performance of the components, ensure that each component operates stably in a suitable temperature environment, and extend the service life of the components.

[0058] Drinking water purifier faucet 4: Located on the lower left side of the display screen 6, it is fixedly connected to the outer shell 1 of the main unit. It can achieve accurate output of high-level drinking water purification. The position layout conforms to the user's daily usage habits, making it convenient for the user to take drinking water. At the same time, it is set separately from the washing water purifier faucet 5 to avoid user misoperation and ensure water safety.

[0059] Washing water purifier faucet 5: Located on the lower right side of the display screen 6, it is fixedly connected to the outer shell 1 of the main unit. It can realize the precise output of washing water. It is symmetrically arranged with the drinking water purifier faucet 4, which makes it convenient for users to choose to use according to their needs. It can also ensure the convenience of water use during washing and improve the user experience.

[0060] Display screen 6: It is fixedly connected to the top front of the main body shell 1, in a prominent position, so that users can intuitively view the equipment's operating status information, such as water temperature and water level. At the same time, it is convenient for users to operate the equipment to set parameters, thus improving the ease of use of the equipment.

[0061] Top cover 7: It is fixedly connected to the top of the main body shell 1, with a sealing ring installation position at the bottom and cover fixing holes at the four corners. It can protect the internal components of the main body shell 1, preventing dust, moisture and other substances from entering the equipment. At the same time, it is convenient to open the cover later to replace and maintain the internal filter element and other components.

[0062] Sealing ring 8: Set at the bottom of the top cover 7, it can enhance the sealing of the connection between the top cover 7 and the main body shell 1, effectively prevent dust and moisture from entering the equipment, avoid internal components from getting damp or dusty, and ensure the cleanliness and dryness of the internal environment of the equipment.

[0063] Cover plate fixing holes 9: Set at the four corners of the top cover plate 7, providing installation positions for bolt fixing, which can stably fix the top cover plate 7 to the main body shell 1, ensuring that the cover plate is firmly installed, preventing the cover plate from loosening during equipment operation, and further improving the sealing performance and overall stability of the equipment;

[0064] Water tank bracket 10: It is fixedly connected to the bottom of the main body shell 1, and has water tank installation positions on both sides. It can realize the stable installation of hot drinking water storage tank 12 and hot washing water storage tank 11, provide a solid support foundation for the water tank, prevent the water tank from shaking or shifting, ensure the stability of the connection between the water tank and the pipeline, and prevent water leakage.

[0065] Hot water storage tank 11 for washing: It is fixedly connected to the other side of the water storage tank bracket 10 and connected to the pipeline of the ordinary ultrafiltration membrane module 17 and the wastewater recovery pump 14 above. It can store the mixture of ordinary purified water and recycled wastewater, providing sufficient water source for washing and facilitating subsequent heating of the water by the heating component, thus ensuring the stability of hot water supply during washing.

[0066] Hot drinking water storage tank 12: It is fixedly connected to one side of the water tank bracket 10 and connected to the pipeline of the post-activated carbon filter element 18. It can store high-grade drinking water, provide a stable water source for hot drinking water, and facilitate the heating component to heat it in a targeted manner, ensuring the stability and convenience for users when taking out hot drinking water.

[0067] One-way valve 13: Fixedly connected to wastewater recovery pump 14, it can control the flow direction of wastewater, prevent backflow of recovered wastewater, ensure that wastewater can be smoothly transported to hot wash water storage tank 11 for reuse, and ensure the stable operation of wastewater recovery and reuse mechanism.

[0068] Wastewater recycling pump 14: It is fixedly connected to the bottom of the main body shell 1, located on one side of the hot drinking water storage tank 12. One end is connected to the wastewater pipeline of the reverse osmosis membrane module 16, and the other end is connected to the pipeline of the hot washing water storage tank 11. It can provide power to transport the wastewater generated by the reverse osmosis membrane module 16 to the hot washing water storage tank 11 for reuse, realize the recycling of water resources, and reduce water waste.

[0069] High-pressure pump 15: It is fixedly connected to the rear side of the main body shell 1. One end is connected to the pipeline of the high-level ultrafiltration membrane module 22, and the other end is connected to the pipeline of the reverse osmosis membrane module 16. It can provide high-pressure power for the filtration operation of the reverse osmosis membrane module 16, ensuring that the reverse osmosis membrane can efficiently intercept tiny harmful substances in the water and guarantee the purity of high-level drinking water.

[0070] Reverse osmosis membrane module 16: It is fixedly connected to one side of the middle part of the main body shell 1. One end is connected to the pipeline of the high pressure pump 15, and the other end is connected to the pipeline of the post-activated carbon filter element 18. At the same time, it is equipped with a wastewater output pipeline connected to the wastewater recovery pump 14. It can deeply purify the raw water filtered by the high-level ultrafiltration membrane, efficiently remove heavy metal ions, antibiotics and other harmful substances in the water, and produce high-purity primary drinking water. At the same time, it is convenient to transport the wastewater generated by filtration to the wastewater recovery pump 14 for recycling.

[0071] Ordinary ultrafiltration membrane module 17: It is fixedly connected to the upper side of the main body shell 1 through the purification unit bracket 23. One end is connected to the pipeline of the dual diversion valve 24, and the other end is connected to the pipeline of the hot wash water storage tank 11. It can perform targeted purification on the raw water after diversion, remove impurities such as colloids and bacteria in the water, and produce ordinary purified water that meets the washing requirements, while ensuring a stable supply of wash water.

[0072] Post-activated carbon filter element 18: It is fixedly connected to the rear side of the middle part of the main body shell 1. One end is connected to the pipeline of the reverse osmosis membrane module 16, and the other end is connected to the pipeline of the hot drinking water storage tank 12. It is also fixed by the purification unit bracket 23. It can further adsorb the primary drinking water produced by the reverse osmosis membrane module 16, optimize the taste of the water, and improve the quality of drinking water. At the same time, the stable installation structure can ensure smooth water flow and ensure stable water supply.

[0073] Pretreatment unit bracket 19: It is fixedly connected to the upper part of the main body shell 1, located on the top of the high-level ultrafiltration membrane module 22, and is equipped with installation positions for PP cotton filter element and activated carbon filter element. It can realize the stable installation of PP cotton filter element 21 and activated carbon filter element 20, provide a solid support foundation for raw water pretreatment, and ensure the stable operation of pretreatment.

[0074] Activated carbon filter element 20: It is fixedly connected to the pretreatment unit bracket 19 and located on one side of the PP cotton filter element 21. One end is connected to the pipeline of the PP cotton filter element 21, and the other end is connected to the pipeline of the dual-way diversion valve 24. It can adsorb and treat the raw water after PP cotton filtration, remove residual chlorine, odor and some organic matter in the raw water, improve the taste and basic safety of the water, and prepare for subsequent differentiated purification.

[0075] PP cotton filter element 21: It is fixedly connected to the pretreatment unit bracket 19. One end is connected to the external raw water pipeline, and the other end is connected to the pipeline of activated carbon filter element 20. It can perform preliminary filtration of external raw water, intercept large particulate impurities such as mud, rust, and insect eggs in the raw water, avoid clogging of subsequent precision filtration components, and ensure the normal operation and service life of subsequent purification components.

[0076] High-level ultrafiltration membrane module 22: It is fixedly connected to one side of the middle part of the main body shell 1, located above the hot wash water storage tank 11. One end is connected to the pipeline of the dual-way diversion valve 24, and the other end is connected to the pipeline of the high-pressure pump 15. It is also fixed by the purification unit bracket 23. It can perform secondary fine filtration on the raw water after diversion, further improve the water purity, provide high-quality raw water for subsequent deep purification by reverse osmosis membrane, ensure the purification effect of high-level drinking water, and the stable installation structure can also ensure smooth water supply.

[0077] Purification unit bracket 23: It is fixedly connected to the upper side of the main body shell 1, and is fixedly connected to the ordinary ultrafiltration membrane module 17, the post-activated carbon filter element 18, and the high-level ultrafiltration membrane module 22 respectively. It can provide stable installation support for multiple purification modules, ensure that each purification module is installed firmly and in a precise position, ensure the sealing and smoothness of the pipeline connection between each module, and improve the stability of the overall purification system.

[0078] Dual-way diversion valve 24: It is fixedly connected to the rear side of the main body shell 1 through the fixed lug 26. One end is connected to the pipeline of activated carbon filter element 20, and the other end splits into two pipelines that are connected to ordinary ultrafiltration membrane module 17 and high-level ultrafiltration membrane module 22 respectively. An adjustment handle is provided on it, which can smoothly divert the pretreated raw water to two different purification links to realize the orderly purification of two water quality differences. At the same time, it is easy to control the on and off of the two water flows and the flow ratio through the adjustment handle to ensure the flexible operation of the purification system.

[0079] Adjustment handle 25: Located on the dual-way diversion valve 24, it allows staff or users to flexibly adjust the on / off state and flow ratio of the two water flows of the dual-way diversion valve 24 according to actual water demand, so that the purification system can be adapted to different water use scenarios and improve the practicality of the equipment.

[0080] Fixed ear post 26: Fixedly connected to the dual-way diversion valve 24, and fixed the dual-way diversion valve 24 to the rear side of the main body housing 1 by bolts. It can provide a stable installation and fixing structure for the dual-way diversion valve 24, ensuring that the dual-way diversion valve 24 will not shift or shake under the action of water flow pressure, ensuring the stable operation of the diversion process, and avoiding problems such as water leakage or unstable diversion due to loose diversion valve.

[0081] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A multi-stage composite dual-water quality drinking water purification device, comprising a main body casing (1), characterized in that: The four corners of the bottom of the main body shell (1) are fixedly connected with anti-slip rubber feet (2). The display screen (6) is fixedly connected to the top of the front of the main body shell (1). A drinking water faucet (4) is set on the left side below the display screen (6). A washing water faucet (5) is set on the right side below the display screen (6). The drinking water faucet (4) and the washing water faucet (5) are fixedly connected to the main body shell (1). A dual water purification mechanism is set on the main body shell (1). The dual water purification mechanism includes a water tank bracket (10). The water tank bracket (10) is fixedly connected to the bottom of the main body shell (1). A hot drinking water storage tank (12) is fixedly connected to one side of the water storage tank bracket (10), and a hot washing water storage tank (11) is fixedly connected to the other side of the water storage tank bracket (10). A high-level ultrafiltration membrane assembly (22) is installed above the hot washing water storage tank (11), and the high-level ultrafiltration membrane assembly (22) is fixedly connected to one side of the inner middle of the main body shell (1). The high-level ultrafiltration membrane module (22) is provided with a pretreatment unit support (19) on the top. The pretreatment unit support (19) is fixedly connected to the upper part of the main body shell (1). A PP cotton filter element (21) is fixedly connected to the pretreatment unit support (19). An activated carbon filter element (20) is provided on one side of the PP cotton filter element (21). The activated carbon filter element (20) is fixedly connected to the pretreatment unit support (19). A wastewater recovery pump (14) is installed on one side of the hot drinking water storage tank (12). A common ultrafiltration membrane module (17) is installed above the wastewater recovery pump (14). A purification unit bracket (23) is fixedly connected to the common ultrafiltration membrane module (17). The purification unit bracket (23) is fixedly connected to the upper side of the main body shell (1). A reverse osmosis membrane module (16) is installed below the common ultrafiltration membrane module (17). The reverse osmosis membrane module (16) is fixedly connected to the middle side of the main body shell (1). A post-activated carbon filter element (18) is fixedly connected to the rear side of the middle part of the main body shell (1).

2. The multi-stage composite dual-water quality drinking water purification equipment according to claim 1, characterized in that: The top of the main body shell (1) is fixedly connected to a top cover plate (7), a sealing ring (8) is provided at the bottom of the top cover plate (7), and cover plate fixing holes (9) are provided at the four corners of the top cover plate (7). The top cover plate (7) is fixed to the main body shell (1) with bolts through the cover plate fixing holes (9). Ventilation openings (3) are fixedly connected to both sides of the main body shell (1).

3. The multi-stage composite dual-water quality drinking water purification equipment according to claim 1, characterized in that: The wastewater recovery pump (14) is fixedly connected to the bottom of the main body shell (1). A one-way valve (13) is fixedly connected to the wastewater recovery pump (14). A high-pressure pump (15) is set above the wastewater recovery pump (14). The high-pressure pump (15) is fixedly connected to the rear side of the main body shell (1).

4. The multi-stage composite dual-water-quality drinking water purification equipment according to claim 1, characterized in that: A dual-flow valve (24) is provided on one side of the post-activated carbon filter element (18). A fixed lug (26) is fixedly connected to the dual-flow valve (24). An adjustment handle (25) is provided on the dual-flow valve (24). The dual-flow valve (24) is fixedly connected to the rear side of the main body shell (1) through the fixed lug (26).

5. The multi-stage composite dual-water quality drinking water purification equipment according to claim 1, characterized in that: The post-activated carbon filter element (18) and the high-level ultrafiltration membrane module (22) are both fixedly connected to the main body shell (1) through the purification unit bracket (23).

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