Water purification equipment capable of automatically flushing forwards and backwards
Water purification equipment with automatic forward and reverse flushing, utilizing the automatic flushing function controlled by pressure gauges and solenoid valves, solves the problems of short filter life and high cost of traditional water purifiers, achieving efficient and low-cost water purification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional water purifier filter cartridges lose their filtration capacity after a period of use, resulting in poor water quality. They need to be replaced frequently, which is costly, and they cannot effectively remove harmful substances such as heavy metals, threatening human health.
Design an automatic forward and reverse flushing water purification device. The device uses a pressure gauge to detect the degree of dirt accumulation inside the water purifier and utilizes a solenoid valve and water pump to achieve automatic reverse and forward flushing, reducing the frequency of filter replacement. It also incorporates an ultraviolet sterilizer for water purification.
It extends the lifespan of the water purifier, reduces filter replacement costs, improves water purification efficiency, reduces the residue of harmful substances, and ensures the safety of drinking water.
Smart Images
Figure CN224091621U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of water purification equipment, specifically to an automatic forward and reverse rinsing water purification device. Background Technology
[0002] 80% of human diseases are related to water. The main disinfection method for tap water is chlorination. Although it can remove a large number of bacteria, it also contains harmful substances, especially heavy metals, chlorine molecules and nitrites. The transportation process and water tower storage can cause a certain degree of secondary pollution. Even boiling water cannot remove heavy metals and other harmful substances. Excessive intake of these substances can cause great harm to the human body and threaten human health.
[0003] Traditional water purifiers are relatively simple in design and construction, typically consisting of one or more filter cartridges. After a period of use, the filtration capacity of these cartridges decreases, and the filtered water quality fails to meet standards. The usual solution is to replace the cartridges. Furthermore, after a period of use, especially in the later stages, the water quality deteriorates, and replacing the cartridges is costly. Utility Model Content
[0004] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide an automatic forward and reverse rinsing water purification device. This application provides the following technical solution:
[0005] The system includes a water storage tank, a water purifier, and a water pump. The water inlet of the water purifier is connected to the water pump via an inlet pipe, the water outlet is connected to the water storage tank via a water supply pipe, and the drain outlet is connected to the outside via a drain pipe. A first pressure gauge is installed on the inlet pipe to detect the water pressure inside the inlet pipe. A one-way valve that only allows water to enter the water purifier is also installed on the inlet pipe. A first solenoid valve is installed on the drain pipe. The first pressure gauge is electrically connected to the first solenoid valve and the water pump.
[0006] The water supply pipe is equipped with a one-way air nozzle, which includes an air inlet and a one-way air valve connected between the air inlet and the water supply pipe. The one-way air valve only allows external air to pass through the air inlet into the water supply pipe.
[0007] A pipeline-type ultraviolet sterilizer is also connected to the water supply pipe.
[0008] A drain pipe is also connected to the inlet pipe between the one-way liquid valve and the water purifier. A second solenoid valve is installed on the drain pipe and the other end is connected to the outside. The second solenoid valve is electrically connected to the first pressure gauge.
[0009] The water inlet pipe is also equipped with a second pressure gauge for detecting the water pressure inside the water inlet pipe. The second pressure gauge is electrically connected to the first solenoid valve and the water pump. The water storage tank is equipped with a third pressure gauge for detecting the pressure inside the water storage tank. The third pressure gauge is electrically connected to the first pressure gauge.
[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0011] By installing a pressure gauge on the inlet pipe, the water pressure detected by the gauge increases when there is a lot of dirt inside the water purifier. The degree of dirt inside the water purifier is detected by detecting the water pressure. The pressure gauge can be preset with a pressure value. When the pressure value is reached, the first or second solenoid valve is opened by electronic control. When the water pressure in the storage tank is sufficient, the water is output from the storage tank and flows into the water purifier through the water pipe from the outlet of the water purifier to backwash the water purifier. Alternatively, the water can be output by a water pump and flows into the water purifier through the inlet pipe from the inlet of the water purifier to forward flush the water purifier. This achieves automatic flushing of dirt inside the water purifier, eliminating the need for frequent filter replacements and extending its service life.
[0012] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of an embodiment of an automatic forward and reverse rinsing water purification device.
[0015] Figure 2 This is a schematic diagram of an automatic forward and reverse rinsing water purification device, Example 2.
[0016] Reference numerals in the attached diagram: 1. Water storage tank; 11. Third pressure gauge; 2. Water purifier; 3. Water pump; 4. Inlet pipe; 41. One-way liquid valve; 5. Water delivery pipe; 51. Air nozzle; 52. Pipeline ultraviolet sterilizer; 6. Sewage pipe; 61. First solenoid valve; 7. First pressure gauge; 8. Drain pipe; 81. Second solenoid valve; 9. Second pressure gauge. Detailed Implementation
[0017] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0018] 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 part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0019] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0020] Example 1
[0021] Please refer to Figure 1 As shown, this embodiment provides an automatic forward and reverse rinsing water purification device;
[0022] The system includes a water storage tank 1, a water purifier 2, and a water pump 3. The inlet of the water purifier 2 is connected to the inlet pipe 4, which is connected to the water pump 3. The outlet is connected to the water supply pipe 5, which is connected to the water storage tank 1. The drain outlet is connected to the drain pipe 6, which is connected to the outside. The inlet pipe 4 is equipped with a first pressure gauge 7 for detecting the water pressure inside the inlet pipe 4. The inlet pipe 4 is also equipped with a one-way valve 41 that only allows water to enter the water purifier 2. The drain pipe 6 is equipped with a first solenoid valve 61. The first pressure gauge 7 is electrically connected to the first solenoid valve 61 and the water pump 3.
[0023] Among them, water purifier 2 adopts the existing technology of ultrafiltration water purifier. Specifically, it has a water chamber to be filtered and a water purification chamber inside, which are separated by a filter element. That is, the water to be filtered is filtered into purified water by the filter element and then enters the water purification chamber. The water inlet and the sewage outlet are connected to the water chamber to be filtered, and the water outlet is connected to the water purification chamber.
[0024] A one-way air nozzle 51 is provided on the water supply pipe 5. The one-way air nozzle 51 includes an air inlet and a one-way air valve connected between the air inlet and the water supply pipe 5. The one-way air valve only allows external air to pass through the air inlet into the water supply pipe 5.
[0025] A pipeline-type ultraviolet sterilizer 52 is also connected to the water supply pipe 5.
[0026] In practice, the water purification process is as follows: the water pump 3 draws water through the inlet pipe 4 and delivers it to the water purifier 2. After being filtered by the water purifier 2, the water is delivered through the water supply pipe 5 to the storage tank 1 for storage. At the same time, the pipeline ultraviolet sterilizer 52 disinfects the water.
[0027] Automatic flushing: As the water purifier 2 operates, more and more dirt accumulates on the filter element inside the water purifier 2. At this time, the pressure value measured by the first pressure gauge 7 reaches the preset threshold. The first pressure gauge 7 shuts off the water pump 3 and opens the first solenoid valve 61 through electronic control. At this time, due to the liquid pressure in the water storage tank 1, the purified water in the water storage tank 1 is poured into the outlet of the water purifier 2 through the water supply pipe 5. However, the inlet pipe 4 is equipped with a one-way liquid valve 41, so the liquid cannot flow to the inlet pipe 4. Instead, it passes through the filter element of the water purifier 2 to flush the filter element and is discharged from the drain pipe 6 for backwashing. A few seconds later, the water pump 3 restarts, draws water through the inlet pipe 4 and delivers it to the water purifier 2 to flush the water chamber to be filtered inside the water purifier 2. The water is then discharged from the drain pipe 6 for forward flushing. A few seconds later, the first solenoid valve 61 closes, and the normal purified water supply is restored.
[0028] It is worth noting that an electrical control box is also provided to achieve electronic control. The electrical control box contains multiple relays and timers. In the first embodiment, the first pressure gauge 7 is electrically connected to a relay 1 for starting the first solenoid valve 61 and a relay 2 for shutting off the water pump 3. Relay 1 is electrically connected to timer 1, and relay 2 is electrically connected to timer 2. When the first pressure gauge 7 outputs an electrical signal to open the first solenoid valve 61 and shut off the water pump 3, timer 1 and timer 2 start working. After a few seconds, timer 2 resets relay 2 and restarts the water pump 3. After a few more seconds, timer 1 resets relay 1 and shuts off the first solenoid valve 61.
[0029] like Figure 2 As shown, a further improvement is made based on Embodiment 1, namely in a possible Embodiment 2:
[0030] A drain pipe 8 is also connected to the inlet pipe 4 between the one-way liquid valve 41 and the water purifier 2. A second solenoid valve 81 is installed on the drain pipe 8 and the other end is connected to the outside. The second solenoid valve 81 is electrically connected to the first pressure gauge 7.
[0031] A second pressure gauge 9 is also installed on the water inlet pipe 4 to detect the water pressure inside the water inlet pipe 4. The second pressure gauge 9 is electrically connected to the first solenoid valve 61 and the water pump 3. A third pressure gauge 11 is installed on the water storage tank 1 to detect the pressure inside the water storage tank 1. The third pressure gauge 11 is electrically connected to the first pressure gauge 7.
[0032] In practice, the water purification method remains unchanged, and the automatic flushing is divided into two scenarios:
[0033] When the water tank 1 is full: As the water purifier 2 operates, the dirt on the filter element inside the water purifier 2 increases. At this time, the pressure value measured by the first pressure gauge 7 reaches the preset threshold. The first pressure gauge 7 shuts off the water pump 3 and opens the second solenoid valve 81 via electronic control. At this time, due to the liquid pressure in the water tank 1, the purified water in the water tank 1 flows into the outlet of the water purifier 2 through the water supply pipe 5. However, the first solenoid valve 61 on the drain pipe 6 is not open, so the water cannot flow to the drain pipe 6. Instead, it passes through the filter element of the water purifier 2 to rinse the filter element and then is discharged from the drain pipe 8 for backwashing. A few seconds later, the water pump 3 restarts, the first solenoid valve 61 opens, and the second solenoid valve 82 closes. The water pump 3 draws water through the water inlet pipe 4 and delivers it to the water purifier 2 to rinse the water chamber to be filtered inside the water purifier 2. The water is then discharged from the drain pipe 6 for forward rinsing. A few seconds later, the first solenoid valve 61 closes, restoring normal purified water supply.
[0034] When the water level in storage tank 1 is low: the pressure measured by the third pressure gauge 11 is too low, below the pressure threshold, and the electrical connection between the first pressure gauge 7 and other devices is disconnected, causing the first pressure gauge 7 to malfunction. As the water purifier 2 operates, more and more dirt accumulates on the filter element inside the water purifier 2. At this time, the pressure measured by the second pressure gauge 8 exceeds the pressure threshold of the first pressure gauge 7 and continues to rise. During this period, water is also continuously injected into storage tank 1, and the pressure generated by the injected water gradually increases. If it exceeds the pressure threshold of the third pressure gauge 11, the first pressure gauge is reconnected. 7. Electrical connection with other equipment, i.e., operation according to the condition that the water in the water tank 1 is sufficient; if the pressure does not exceed the pressure threshold of the third pressure gauge 11 until the pressure value reaches the pressure threshold of the second pressure gauge 8, at this time, the second pressure gauge 8 opens the first solenoid valve 61 through electrical control, without shutting off the water pump 1, the water pump 1 draws water through the water inlet pipe 4 and delivers it to the water purifier 2 to flush the water chamber to be filtered in the water purifier 2, and then the water is discharged from the drain pipe 6 for positive flushing; after a few seconds, the first solenoid valve 61 closes, and normal purified water supply is restored.
[0035] It is worth noting that in Embodiment 2, the first pressure gauge 7 is electrically connected to a relay 3 for activating the second solenoid valve 81 and a relay 2 for shutting off the water pump 3. Relays 3 and 2 are electrically connected to a timer 2. The timer 2 is also electrically connected to a relay 1 for activating the first solenoid valve 61. Relay 1 is also electrically connected to a timer 3. When the first pressure gauge 7 outputs an electrical signal to open the second solenoid valve 81 and shut off the water pump 3, the timer 2 starts working. After a few seconds, the timer 2 resets relays 2 and 3, changes the state of relay 1, restarts the water pump 3, shuts off the second solenoid valve 81, and opens the first solenoid valve 61. At this time, the timer 3 starts working, resets relay 1 after a few seconds, and shuts off the first solenoid valve 61.
[0036] The third pressure gauge 11 is electrically connected to a circuit switch located between the first pressure gauge 7 and relays three and two. When the pressure of the third pressure gauge 11 is lower than the threshold, the circuit is disconnected; when it is higher than the threshold, the circuit is connected.
[0037] The second pressure gauge 7 is electrically connected to a relay 1 for activating the first solenoid valve 61. When the second pressure gauge 7 reaches the threshold, it outputs an electrical signal to change the state of relay 1, opening the first solenoid valve 61. At this time, timer 3 starts working, and after a few seconds, it resets relay 1 and closes the first solenoid valve 61.
[0038] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. An automatic forward and reverse rinsing water purification device, comprising a water storage tank (1), a water purifier (2), and a water pump (3), characterized in that: The inlet of the water purifier (2) is connected to the inlet pipe (4) and the water pump (3), the outlet is connected to the water supply pipe (5) and the water storage tank (1), and the drain outlet is connected to the drain pipe (6) and the outside. The inlet pipe (4) is equipped with a first pressure gauge (7) for detecting the water pressure in the inlet pipe (4). The inlet pipe (4) is also equipped with a one-way liquid valve (41) that only allows water to enter the water purifier (2). The drain pipe (6) is equipped with a first solenoid valve (61). The first pressure gauge (7) is electrically connected to the first solenoid valve (61) and the water pump (3).
2. The automatic forward and reverse rinsing water purification device as described in claim 1, characterized in that: The water supply pipe (5) is provided with a one-way air nozzle (51), which includes an air inlet and a one-way air valve connected between the air inlet and the water supply pipe (5). The one-way air valve only allows external air to pass through the air inlet into the water supply pipe (5).
3. The automatic forward and reverse rinsing water purification device as described in claim 1, characterized in that: A pipeline-type ultraviolet sterilizer (52) is also connected to the water supply pipe (5).
4. The automatic forward and reverse rinsing water purification device as described in claim 1, characterized in that: A drain pipe (8) is also connected to the inlet pipe (4) between the one-way liquid valve (41) and the water purifier (2). A second solenoid valve (81) is installed on the drain pipe (8) and the other end is connected to the outside. The second solenoid valve (81) is electrically connected to the first pressure gauge (7).
5. The automatic forward and reverse rinsing water purification device as described in claim 4, characterized in that: The water inlet pipe (4) is also equipped with a second pressure gauge (9) for detecting the water pressure inside the water inlet pipe (4). The second pressure gauge (9) is electrically connected to the first solenoid valve (61) and the water pump (3). The water storage tank (1) is equipped with a third pressure gauge (11) for detecting the pressure inside the water storage tank (1). The third pressure gauge (11) is electrically connected to the first pressure gauge (7).