External pressure type ultrafiltration membrane water purifier with backwashing function

Abstract

The utility model discloses an external pressure type ultrafiltration membrane water purifier with a backwashing function, which belongs to the technical field of water purification, and comprises a water flow control composition mechanism, one side of the water flow control composition mechanism is fixedly connected with a purified water outlet pipe, and the other side of the water flow control composition mechanism is fixedly connected with a water inlet pipe. A purification faucet is fixedly connected to the output end of the purification water outlet pipe, a water purifier assembly is installed on the other side of the water flow control composition mechanism, and a filter assembly is installed between the water flow control composition mechanism and the sewage outlet pipe. According to the utility model, the water flow control composition mechanism, the water purifier assembly and the filter assembly which are simple in design are adopted, and dirt and impurities in a filter element of the water purifier can be more thoroughly removed by combining the technologies of pollution discharge at any time and backwashing pollution discharge of the ultrafiltration membrane water purifier, so that the water purifier reaches the standard of national direct drinking water, and mineral substances beneficial to a human body in water are retained.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to an external pressure type ultrafiltration membrane water purifier with a backwashing function. Background Art

[0002] There are many kinds of household and commercial water purifiers that are popular in the market, and the prices and performance of water purifiers are also uneven. If you need a water purifier with a large flow rate, you can only choose a water purifier with an ultrafiltration membrane filter element. It uses a 304 stainless steel cylindrical shell, a built-in hollow fiber ultrafiltration membrane filter element, and consists of a water inlet, a water outlet, and a sewage outlet. It has a simple structure, is sturdy and durable, and has been very popular among users in recent years. The conventional installation sequence of this water purifier is to first install a pre-filter behind the main valve of the household water pipe, and then install an ultrafiltration membrane water purifier behind the pre-filter. The purified water of the water purifier is directly connected to the faucet and other water-using equipment. There is a drain valve at the bottom of the pre-filter to discharge sewage regularly, and the water purifier also has a drain port to discharge sewage regularly. Usually, one month is the regular sewage discharge cycle. This water purification and sewage discharge method can basically meet the normal operation of the water purifier, but because this sewage discharge method cannot completely remove dirt and impurities in the water purifier filter element, it affects the service life of the water purifier filter element. The replacement cycle of the filter element is usually 2 to 3 years. There is usually another way to remove dirt and impurities from the water purifier filter element, which is to disassemble the external pressure ultrafiltration membrane water purifier filter element and manually clean the ultrafiltration membrane water purifier filter element. This method requires professionals to complete. Although it is very troublesome, the service life of the external pressure ultrafiltration membrane water purifier filter element cleaned in this way can extend the service life of 4 to 5 years. As we all know, a good water purifier can be used for more than ten to twenty years or even longer if the filter cartridge is replaced regularly. The final cost of the water purifier is determined by the purchase price of the water purifier, the price of the replacement filter cartridge and the replacement cycle. If you need to buy a set of filter cartridges for replacement every 2 to 3 years, the accumulated filter cartridge replacement fee over the years is a considerable expense, which greatly increases people's living burden.

[0003] Most of the current pre-filters and water purifiers need to be drained regularly, and the water supply pipes in some economically underdeveloped and old areas often experience temporary water outages due to water supply pipe failures and other reasons. After the failure is repaired, water will be refilled, which may cause a large amount of rust and mud in the pipes to rush into the pre-filter and water purifier. When people are unaware of the occurrence of the water outage, they cannot clean up the impurities in the pre-filter and ultrafiltration membrane water purifier in time, and wait until the specified time of the regular drainage cycle to manually drain the sewage. At this time, a large amount of impurities and dirt have accumulated in the filter screen of the pre-filter and the filter element of the water purifier, which will seriously affect the quality of people's drinking water. In addition, for a period of time before the ultrafiltration membrane water purifier is drained regularly, a large amount of dirt, bacteria and other impurities will exist in the filter element of the external pressure ultrafiltration membrane water purifier, and it is very likely that bacteria in the effluent will gather and multiply, causing secondary pollution of the water quality, which will seriously affect the quality of purified water.

[0004] Therefore, there is an urgent need to provide an external pressure ultrafiltration membrane water purifier with backwashing function to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the disadvantages of the prior art and provide an external pressure ultrafiltration membrane water purifier with a backwashing function.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an external pressure ultrafiltration membrane water purifier with backwashing function, including a water flow control component mechanism, one side of the water flow control component mechanism is fixedly connected to a purified water outlet pipe, and the output end of the purified water outlet pipe is fixedly connected to a purified water faucet;

[0007] A water purifier assembly is installed on the other side of the water flow control component mechanism, a sewage outlet pipe is fixedly connected to one side of the water purifier assembly, a sewage faucet is fixedly connected to the output end of the sewage outlet pipe, a water basin is installed between the purified water faucet and the sewage faucet, and a filter assembly is installed between the water flow control component mechanism and the sewage outlet pipe.

[0008] The utility model is further configured as follows: the water flow control component mechanism is a first water flow control component mechanism, the first water flow control component mechanism includes a three-way ball valve, the top of the three-way ball valve is provided with a three-way ball valve tap water inlet, one side of the three-way ball valve is provided with a three-way ball valve tap water outlet, the other side of the three-way ball valve is provided with a three-way ball valve backwash water outlet, the output end of the three-way ball valve backwash water outlet is fixedly connected to a backwash water pipe, the bottom of the backwash water pipe is fixedly connected to a first three-way, one side of the first three-way is provided with a water purifier purified water outlet and The backwash water inlet, the bottom of the first tee is fixedly connected to the purified water outlet pipe, the water purifier assembly includes an external pressure hollow fiber ultrafiltration membrane water purifier fixedly connected to the purified water outlet of the water purifier and the output end of the backwash water inlet, the external pressure hollow fiber ultrafiltration membrane water purifier is provided with an external pressure ultrafiltration membrane water purifier filter element inside, the inner wall of the external pressure ultrafiltration membrane water purifier filter element is provided with an ultrafiltration membrane water purifier filter element inner cavity, the outer wall of the external pressure ultrafiltration membrane water purifier filter element is provided with an ultrafiltration membrane water purifier filter element outer cavity, the bottom of the external pressure hollow fiber ultrafiltration membrane water purifier Two water purifier bases are provided, the outer wall of the external pressure hollow fiber ultrafiltration membrane water purifier is provided with a bolt locking clamp, the other side of the external pressure hollow fiber ultrafiltration membrane water purifier is provided with a water purifier sewage outlet, the water purifier sewage outlet is provided with a one-way valve, one side of the one-way valve is fixedly connected to the sewage outlet pipe, the filter assembly includes a pre-filter fixedly connected to the bottom of the tap water outlet of the three-way ball valve, the top of one side of the pre-filter is provided with a pre-filter tap water inlet, the bottom of one side of the pre-filter is provided with a pre-filter outlet, the pre-filter A live joint is provided at the bottom of the filter outlet, a water purifier water inlet is provided at the bottom of the live joint, the water purifier water inlet is fixedly connected to the external pressure hollow fiber ultrafiltration membrane water purifier, a pre-filter stainless steel filter element is provided inside the pre-filter, a pre-filter stainless steel filter element outer cavity is provided on the outer wall of the pre-filter stainless steel filter element, a pre-filter sewage outlet is provided on the other side of the pre-filter, a throttle valve is provided on one side of the pre-filter sewage outlet, a fourth tee is provided on one side of the throttle valve, and the fourth tee is fixedly connected to the sewage outlet pipe inside.

[0009] Through the above technical scheme, when in use, the pre-filter is connected to the external pressure hollow fiber ultrafiltration membrane water purifier with a flexible joint, and then assembled with the three-way ball valve, throttle valve, one-way valve, fourth three-way, elbow, stainless steel hose and water purification faucet, sewage discharge faucet and other components in sequence to make a water purification device with backwashing function. By rotating the three-way valve handle to change the water inlet and outlet directions of the water purifier, the inner cavity of the filter element of the external pressure ultrafiltration membrane water purifier forms a reverse pressure on the outer cavity. Under the action of water pressure, water molecules enter the outer cavity through countless 0.01μm micropores on the membrane wall of the filter element. The dirt and impurities remaining in the outer cavity of the filter element are removed by reverse water flow, and the dirt and impurities are discharged from the water purifier body through the sewage discharge faucet. The filter element of the external pressure ultrafiltration membrane water purifier keeps running in a clean environment for a long time, which greatly prolongs the service life of the filter element of the external pressure ultrafiltration membrane water purifier, and achieves the purpose of improving the water quality of purified water and reducing costs.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The utility model designs a simple water flow control component mechanism, a water purifier component and a filter component, and uses an ultrafiltration membrane water purifier to discharge sewage at any time and superimpose backwashing sewage discharge technology, which can more thoroughly remove dirt and impurities in the water purifier filter element, greatly improving the water purification quality of the water purifier. The filtration accuracy of the ultrafiltration membrane filter element is 0.01μm, which fully meets the national direct drinking water standard and retains minerals in the water that are beneficial to the human body;

[0012] 2. In the process of using water in daily life and preparing three meals a day, the impurities inside the filter element of the utility model can be discharged at any time through the sewage faucet. The so-called sewage does not have many impurities and can be used to wash dirty dishes, vegetables with soil, wash rags, mop the floor, water flowers, flush toilets, etc. Backwashing does not require a fixed cleaning cycle. When the amount of dirt and impurities adhering to the filter element of the water purifier increases by a certain amount according to the degree of reduction in the amount of purified water, and the amount of purified water in the water purifier is significantly reduced, backwashing and sewage discharge can be performed to keep the filter element of the water purifier running in a clean state, which can greatly extend the service life of the filter element. The filter element does not need to be replaced every two to three years. If the device of the present invention is used and maintained properly, the service life of the filter element of the ultrafiltration membrane water purifier can reach more than 10 years or even longer, reducing the cost of regular replacement of the filter element when people use the water purifier all year round.

[0013] 3. When cleaning the water purifier filter element of the utility model, the water purifier device does not require professionals to disassemble the water purifier filter element for cleaning. The impurities in the filter element can be reversely flushed by rotating the three-way valve handle. After the filter element is cleaned, the three-way valve handle can be rotated to its original position to resume the normal water purification process. The backwashing is completed by relying on the water pressure of the tap water itself, and no additional power such as a water pump or a power supply is required. It becomes very convenient and easy for users to clean the water purifier filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the first embodiment of the utility model;

[0015] Figure 2 This is a front view of the first embodiment of the present utility model.

[0016] In the figure: 1. Water flow control component; 101. Three-way ball valve; 102. Three-way ball valve tap water inlet; 103. Three-way ball valve tap water outlet; 104. Three-way ball valve backwash water outlet; 105. Backwash water pipe; 106. First three-way; 107. Water purifier purified water outlet and backwash water inlet; 2. Purified water outlet pipe; 3. Purified water faucet; 4. Water purifier assembly; 401. External pressure type hollow fiber ultrafiltration membrane water purifier; 402. External pressure type ultrafiltration membrane water purifier filter element; 403. Ultrafiltration membrane water purifier filter element cavity; 404. Ultrafiltration membrane water purifier filter element Outer cavity; 405, water purifier base; 406, bolt locking clamp; 407, water purifier sewage outlet; 408, one-way valve; 5, sewage outlet pipe; 6, sewage faucet; 7, basin; 8, filter assembly; 801, pre-filter; 802, pre-filter tap water inlet; 803, pre-filter water outlet; 804, flexible joint; 805, water purifier water inlet; 806, pre-filter stainless steel filter element; 807, pre-filter stainless steel filter element outer cavity; 808, pre-filter sewage outlet; 809, throttle valve; 810, fourth tee. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] Embodiment 1:

[0019] See also Figure 1-Figure 2, an external pressure ultrafiltration membrane water purifier with backwashing function, comprising a water flow control component mechanism, one side of the water flow control component mechanism is fixedly connected with a purified water outlet pipe 2, the output end of the purified water outlet pipe 2 is fixedly connected with a purified water tap 3, the water flow control component mechanism is a first water flow control component mechanism 1, the first water flow control component mechanism 1 comprises a three-way ball valve 101, the top of the three-way ball valve 101 is provided with a three-way ball valve tap water inlet 102, one side of the three-way ball valve 101 is provided with a three-way ball valve tap water outlet 103, the other side of the three-way ball valve 101 is provided with a three-way ball valve backwashing water outlet 104, the output end of the three-way ball valve backwashing water outlet 104 is fixedly connected with a backwashing water pipe 105, the bottom of the backwashing water pipe 105 is fixedly connected with a first three-way 106, the first three-way 10 6 One side is provided with a water purifier purified water outlet and a backwash water inlet 107, the bottom of the first three-way 106 is fixedly connected to the purified water outlet pipe 2, and the other side of the water flow control component mechanism is installed with a water purifier assembly 4, the water purifier assembly 4 includes an external pressure type hollow fiber ultrafiltration membrane water purifier 401 fixedly connected to the output end of the water purifier purified water outlet and the backwash water inlet 107, the external pressure type hollow fiber ultrafiltration membrane water purifier 401 is provided with an external pressure type ultrafiltration membrane water purifier filter element 402, the inner wall of the external pressure type ultrafiltration membrane water purifier filter element 402 is provided with an ultrafiltration membrane water purifier filter element inner cavity 403, the outer wall of the external pressure type ultrafiltration membrane water purifier filter element 402 is provided with an ultrafiltration membrane water purifier filter element outer cavity 404, and the bottom of the external pressure type hollow fiber ultrafiltration membrane water purifier 401 is provided with two water purifier bases 405 The outer wall of the external pressure hollow fiber ultrafiltration membrane water purifier 401 is provided with a bolt locking clamp 406, and the other side of the external pressure hollow fiber ultrafiltration membrane water purifier 401 is provided with a water purifier sewage outlet 407, and the water purifier sewage outlet 407 is provided with a one-way valve 408, and one side of the one-way valve 408 is fixedly connected to the sewage outlet pipe 5, and one side of the water purifier component 4 is fixedly connected to the sewage outlet pipe 5, and the output end of the sewage outlet pipe 5 is fixedly connected to the sewage faucet 6, and a basin 7 is installed between the purified water faucet 3 and the sewage faucet 6, and a filter component 8 is installed between the water flow control component and the sewage outlet pipe 5. The filter component 8 includes a pre-filter 801 fixedly connected to the bottom of the three-way ball valve tap water outlet 103, and a pre-filter tap water is provided on the top of one side of the pre-filter 801. An inlet 802, a pre-filter outlet 803 is provided at the bottom of one side of the pre-filter 801, a flexible joint 804 is provided at the bottom of the pre-filter outlet 803, a water purifier inlet 805 is provided at the bottom of the flexible joint 804, the water purifier inlet 805 is fixedly connected to the external pressure hollow fiber ultrafiltration membrane water purifier 401, a pre-filter stainless steel filter element 806 is provided inside the pre-filter 801, and a pre-filter stainless steel filter element outer cavity 807 is provided on the outer wall of the pre-filter stainless steel filter element 806, a pre-filter sewage outlet 808 is provided on the other side of the pre-filter 801, a throttle valve 809 is provided on one side of the pre-filter sewage outlet 808, a fourth three-way 810 is provided on one side of the throttle valve 809, and the fourth three-way 810 is fixedly connected to the sewage outlet pipe 5;

[0020] When in use, the pre-filter 801 is connected to the external pressure hollow fiber ultrafiltration membrane water purifier 401 by a flexible joint 804, and then assembled with the three-way ball valve 101, the throttle valve 809, the one-way valve 408, the fourth three-way 810, the elbow 111, the stainless steel hose and the water faucet 3, the sewage faucet 6 and other components in sequence to make a water purification device with a backwashing function. By rotating the three-way valve handle to change the water inlet and outlet directions of the water purifier, the filter element of the external pressure ultrafiltration membrane water purifier is Cavity 403 forms reverse pressure on the external cavity. Under the action of water pressure, water molecules enter the external cavity through countless 0.01μm micropores on the filter element membrane wall. The dirt and impurities remaining in the external cavity of the filter element are removed by reverse water flow, and the dirt and impurities are discharged out of the water purifier body through the sewage faucet 6. The filter element 402 of the external pressure ultrafiltration membrane water purifier maintains operation in a clean environment for a long time, which greatly extends the service life of the filter element 402 of the external pressure ultrafiltration membrane water purifier, thereby achieving the purpose of improving the quality of purified water and reducing costs.

[0021] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An external pressure ultrafiltration membrane water purifier with backwashing function, comprising a water flow control component mechanism, characterized in that: A purified water outlet pipe (2) is fixedly connected to one side of the water flow control component mechanism, and a purified water faucet (3) is fixedly connected to the output end of the purified water outlet pipe (2); A water purifier assembly (4) is installed on the other side of the water flow control component mechanism, a sewage outlet pipe (5) is fixedly connected to one side of the water purifier assembly (4), a sewage faucet (6) is fixedly connected to the output end of the sewage outlet pipe (5), a water basin (7) is installed between the purified water faucet (3) and the sewage faucet (6), and a filter assembly (8) is installed between the water flow control component mechanism and the sewage outlet pipe (5).

2. The external pressure ultrafiltration membrane water purifier with backwashing function according to claim 1, characterized in that: The water flow control component mechanism is a first water flow control component mechanism (1), which comprises a three-way ball valve (101), a three-way ball valve tap water inlet (102) being provided at the top of the three-way ball valve (101), a three-way ball valve tap water outlet (103) being provided at one side of the three-way ball valve (101), a three-way ball valve backwash water outlet (104) being provided at the other side of the three-way ball valve (101), a backwash water pipe (105) being fixedly connected to the output end of the three-way ball valve backwash water outlet (104), a first three-way valve (106) being fixedly connected to the bottom of the backwash water pipe (105), a water purifier purified water outlet and a backwash water inlet (107) being provided at one side of the first three-way valve (106), and a purified water outlet (107) for a water purifier being fixedly connected to the bottom of the first three-way valve (106) being fixedly connected to the purified water outlet pipe (2).

3. The external pressure ultrafiltration membrane water purifier with backwashing function according to claim 2, characterized in that: The water purifier assembly (4) comprises an external pressure type hollow fiber ultrafiltration membrane water purifier (401) fixedly connected to the output end of the purified water outlet and the backwash water inlet (107) of the water purifier, the external pressure type hollow fiber ultrafiltration membrane water purifier (401) is provided with an external pressure type ultrafiltration membrane water purifier filter element (402) inside, the inner wall of the external pressure type ultrafiltration membrane water purifier filter element (402) is provided with an ultrafiltration membrane water purifier filter element inner cavity (403), the external pressure type ultrafiltration membrane water purifier filter element (402) is provided with a backwash water inlet (107), and the external pressure type ultrafiltration membrane water purifier filter element (402) is provided with a backwash water inlet (107). ) is provided with an ultrafiltration membrane water purifier filter element outer cavity (404) on its outer wall, two water purifier bases (405) are provided at the bottom of the external pressure type hollow fiber ultrafiltration membrane water purifier (401), a bolt locking clamp (406) is provided on the outer wall of the external pressure type hollow fiber ultrafiltration membrane water purifier (401), and a water purifier sewage outlet (407) is provided on the other side of the external pressure type hollow fiber ultrafiltration membrane water purifier (401), and a one-way valve (408) is provided at the water purifier sewage outlet (407).

4. The external pressure ultrafiltration membrane water purifier with backwashing function according to claim 3, characterized in that: One side of the one-way valve (408) is fixedly connected to the sewage outlet pipe (5).

5. The external pressure ultrafiltration membrane water purifier with backwashing function according to claim 3, characterized in that: The filter assembly (8) comprises a pre-filter (801) fixedly connected to the bottom of the tap water outlet (103) of the three-way ball valve, a pre-filter tap water inlet (802) is provided at the top of one side of the pre-filter (801), a pre-filter water outlet (803) is provided at the bottom of one side of the pre-filter (801), a flexible joint (804) is provided at the bottom of the pre-filter water outlet (803), a water purifier water inlet (805) is provided at the bottom of the flexible joint (804), and the water purifier water inlet (805) is connected to the external pressure hollow fiber ultrafiltration membrane water purifier ( 401), a pre-filter stainless steel filter element (806) is provided inside the pre-filter (801), a pre-filter stainless steel filter element outer cavity (807) is provided on the outer wall of the pre-filter stainless steel filter element (806), a pre-filter sewage outlet (808) is provided on the other side of the pre-filter (801), a throttle valve (809) is provided on one side of the pre-filter sewage outlet (808), a fourth tee (810) is provided on one side of the throttle valve (809), and the fourth tee (810) is fixedly connected to the sewage outlet pipe (5) inside.

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