Internal pressure type ultrafiltration membrane water purifier with backwashing function

Abstract

The utility model discloses an internal 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, the bottom of the water flow control composition mechanism is provided with an internal pressure type ultrafiltration membrane water purifier component, and the internal pressure type ultrafiltration membrane water purifier component is provided with an internal pressure type ultrafiltration membrane water purifier. The output end of the internal pressure type ultrafiltration membrane water purifier assembly is provided with a purified water outlet composition mechanism, the output end of the purified water outlet composition mechanism is fixedly connected with a purified faucet, the bottom of the water flow control composition mechanism is provided with a filter assembly, and one side of the filter assembly is provided with a sewage outlet composition mechanism. According to the utility model, through the simple water flow control composition mechanism, the internal pressure type ultrafiltration membrane water purifier assembly, the purified water outlet composition mechanism, the filter assembly and the sewage outlet composition mechanism, the ultrafiltration membrane water purifier can completely reach the national standard of direct drinking water by combining the blowdown technology at any time and the backwashing blowdown technology; 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 internal pressure 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 sewage valve at the bottom of the pre-filter to discharge sewage regularly. The water purifier also has a sewage outlet 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 the 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. As we all know, a good water purifier can be used for more than ten to twenty years or even longer if the filter element is replaced regularly. The final cost of the water purifier is determined by the purchase price of the water purifier, the price of replacing the filter element, and the replacement cycle of the filter element. If you need to buy a set of filter elements for replacement every 2 to 3 years, the accumulated filter element 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, there will be a large amount of dirt, bacteria and other impurities in the filter element of the ultrafiltration membrane water purifier, and it is very likely that bacteria in the water 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 internal 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 internal 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 internal pressure ultrafiltration membrane water purifier with backwashing function, including a water flow control component mechanism, an internal pressure ultrafiltration membrane water purifier assembly is arranged at the bottom of the water flow control component mechanism, a purified water outlet component mechanism is installed at the output end of the internal pressure ultrafiltration membrane water purifier assembly, the purified water outlet component mechanism is a first purified water outlet component mechanism or a second purified water outlet component mechanism, and a purified water faucet is fixedly connected to the output end of the purified water outlet component mechanism;

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

[0008] The utility model is further configured as follows: the water flow control component mechanism includes a three-way ball valve, a three-way valve tap water inlet is provided on the top of the three-way ball valve, a three-way ball valve backwash water outlet is provided on one side of the three-way ball valve, a backwash water pipe is fixedly connected to one side of the three-way ball valve backwash water outlet, and a three-way valve tap water outlet is provided on the other side of the three-way ball valve; the internal pressure ultrafiltration membrane water purifier component includes a water purifier cylindrical shell arranged at the bottom of the backwash water pipe, an ultrafiltration membrane water purifier filter element is provided inside the water purifier cylindrical shell, an ultrafiltration membrane water purifier filter element inner cavity is provided inside the water purifier cylindrical shell, an ultrafiltration membrane water purifier filter element outer cavity is provided outside the ultrafiltration membrane water purifier filter element inner cavity, a water purifier flange end cover is provided on one side of the water purifier cylindrical shell, a water purifier sewage outlet is provided on one side of the water purifier cylindrical shell, and a one-way valve is provided on one side of the water purifier sewage outlet; the first purified water outlet component mechanism includes a first three-way fixedly connected to the output end of the backwash water pipe, the A purified water outlet and a backwash water inlet for a water purifier are provided at the bottom of the first tee, a purified water pipe is fixedly connected to one side of the first tee, the purified water outlet and the backwash water inlet for the water purifier are fixedly connected to the cylindrical shell of the water purifier at the bottom, the filter assembly comprises a pre-filter arranged at the bottom of the tap water outlet of the three-way valve, a pre-filter tap water inlet is provided at the top of one side of the pre-filter, a pre-filter water outlet is provided at the bottom of one side of the pre-filter, a pre-filter stainless steel filter element is provided inside the pre-filter, a pre-filter stainless steel filter element outer cavity is provided outside the pre-filter stainless steel filter element, a flexible joint is provided at the bottom of the pre-filter water outlet, a pre-filter sewage outlet is provided on the other side of the pre-filter, the sewage outlet component mechanism comprises a sewage pipe fixedly connected to the inside of the one-way valve, a second tee is fixedly connected to the outer wall of the sewage pipe, a throttle valve is provided at the input end of one side of the second tee, and a sewage pipe is fixedly connected to the top of the second tee.

[0009] Through the above technical solution, when in use, the throttle valve under the pre-filter is opened to the minimum flow position, the device enters the backwash process and continues to discharge sewage for 2 minutes, then the three-way ball valve is opened to the water purification position, the purified water faucet is opened, the sewage discharge faucet is closed, the water purification process continues for 2 minutes, the throttle valve under the pre-filter is opened to the middle flow position, and the backwash mode is entered again for 2 minutes. Repeat the operation 2 to 3 times between the water purification and backwash modes, which can effectively and thoroughly remove the residual impurities in the ultrafiltration membrane water purifier filter element and the pre-filter. By rotating the three-way ball valve handle to change By changing the water inlet and outlet directions of the water purifier, reverse pressure is formed on the inner cavity of the ultrafiltration membrane water purifier filter element in the outer cavity of the ultrafiltration membrane water purifier filter element. Under the action of water pressure, water molecules enter into the inner cavity of the ultrafiltration membrane water purifier filter element through countless 0.01μm micropores on the filter element membrane wall. The dirt and impurities remaining in the inner cavity of the ultrafiltration membrane water purifier filter element are cleared by reverse water flow, and the dirt and impurities are discharged from the water purifier body through the sewage faucet. The inner cavity of the ultrafiltration membrane water purifier filter element keeps running in a clean environment for a long time, thereby extending the service life of the ultrafiltration membrane water purifier filter element, improving the water quality of purified water and reducing costs.

[0010] The utility model is further configured as follows: the input end of the second water purification component mechanism is fixedly connected to the cylindrical shell of the water purifier.

[0011] Through the above technical scheme, this embodiment is almost identical to the backwash device of the first embodiment, the difference is that there was originally only one water purifier purified water outlet and backwash water inlet in the middle of the cylindrical shell of the water purifier, and the new scheme is that the top of the cylindrical shell of the water purifier is disassembled to be directly connected to the backwash water pipe and directly connected to the purified water faucet through the purified water outlet assembly, the two water inlets and outlets are in the same direction or opposite directions, and are located at 1 / 3 of the length of the shell, which is convenient for installation and maintenance, and the rest of the structure is exactly the same as the first embodiment.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model designs a simple water flow control component mechanism, an internal pressure ultrafiltration membrane water purifier component, a purified water outlet component mechanism, a filter component and a sewage outlet component mechanism. By using the ultrafiltration membrane water purifier to discharge sewage at any time and superimpose backwashing sewage discharge technology, the dirt and impurities in the filter element of the water purifier can be removed more thoroughly, 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;

[0014] 2. The utility model designs a purified water outlet component mechanism, and 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 when 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, and does not need to replace the filter element 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;

[0015] 3. The utility model integrates the pre-filter into the backwash water purification device. The pre-filter is equivalent to the primary filter of the water purification device. It can remove the impurities such as large particles of mud, rust, suspended matter, colloid, etc. in the filter net of the pre-filter at any time, protect the filter element of the ultrafiltration membrane water purifier from being blocked by dirt and impurities, and make the water purification process of the water purifier smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the utility model;

[0017] Figure 2 This is a three-dimensional front view of the first embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the second embodiment of the utility model;

[0019] Figure 4 This is a three-dimensional front view of the second embodiment of the utility model.

[0020] In the figure: 1. Water flow control component; 101. Three-way ball valve; 102. Three-way valve tap water inlet; 103. Three-way ball valve backwash water outlet; 104. Backwash water pipe; 105. Three-way valve tap water outlet; 2. Internal pressure ultrafiltration membrane water purifier component; 201. Water purifier cylindrical shell; 202. Ultrafiltration membrane water purifier filter element; 203. Ultrafiltration membrane water purifier filter element inner cavity; 204. Ultrafiltration membrane water purifier filter element outer cavity; 205. Water purifier flange end cover; 206. Water purifier sewage outlet; 207. One-way valve; 3. Purified water component; 301. First three Pass; 302, water purifier purified water outlet and backwash water inlet; 303, purified water pipe; 4, purified water faucet; 5, filter assembly; 501, pre-filter; 502, pre-filter tap water inlet; 503, pre-filter water outlet; 504, pre-filter stainless steel filter element; 505, pre-filter stainless steel filter element outer cavity; 506, flexible joint; 507, pre-filter sewage outlet; 6, sewage outlet structure; 601, sewage pipe; 602, second three-way; 603, throttle valve; 604, sewage pipe; 7, sewage faucet; 8, basin. DETAILED DESCRIPTION

[0021] 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.

[0022] Embodiment 1:

[0023] See also Figure 1-Figure 2An internal pressure ultrafiltration membrane water purifier with backwashing function comprises a water flow control component 1, the water flow control component 1 comprises a three-way ball valve 101, a three-way valve tap water inlet 102 is arranged on the top of the three-way ball valve 101, a three-way ball valve backwashing water outlet 103 is arranged on one side of the three-way ball valve 101, a backwashing water pipe 104 is fixedly connected to one side of the three-way ball valve backwashing water outlet 103, and a three-way valve tap water outlet 105 is arranged on the other side of the three-way ball valve 101. An internal pressure type ultrafiltration membrane water purifier component 2 is provided at the bottom of the water flow control component mechanism 1, and the internal pressure type ultrafiltration membrane water purifier component 2 includes a water purifier cylindrical shell 201 arranged at the bottom of the backwash water pipe 104, an ultrafiltration membrane water purifier filter element 202 is provided inside the water purifier cylindrical shell 201, an ultrafiltration membrane water purifier filter element inner cavity 203 is provided inside the water purifier cylindrical shell 201, and an ultrafiltration membrane water purifier filter element outer cavity 204 is provided outside the ultrafiltration membrane water purifier filter element inner cavity 203, a water purifier flange end cover 205 is provided on one side of the water purifier cylindrical shell 201, and a water purifier sewage outlet 206 is provided on one side of the water purifier cylindrical shell 201. A one-way valve 207 is provided on one side of the sewage outlet 206 of the water purifier. A purified water outlet component 3 is installed at the output end of the internal pressure ultrafiltration membrane water purifier component 2. The purified water outlet component 3 is a first purified water outlet component 3a or a second purified water outlet component 3b. The first purified water outlet component 3a includes a first tee 301 fixedly connected to the output end of the backwash water pipe 104. The bottom of the first tee 301 is provided with a purified water outlet and a backwash water inlet 302 of the water purifier. A purified water pipe 303 is fixedly connected to one side of the first tee 301. The bottom of the purified water outlet and the backwash water inlet 302 of the water purifier are connected to the cylindrical The outer shell 201 is fixedly connected, the output end of the purified water outlet component 3 is fixedly connected to the purified water faucet 4, and a filter assembly 5 is installed at the bottom of the water flow control component 1. The filter assembly 5 includes a pre-filter 501 arranged at the bottom of the three-way valve tap water outlet 105, a pre-filter tap water inlet 502 is arranged at the top of one side of the pre-filter 501, a pre-filter water outlet 503 is arranged at the bottom of one side of the pre-filter 501, a pre-filter stainless steel filter element 504 is arranged inside the pre-filter 501, and a pre-filter stainless steel filter element outer cavity 505 is arranged outside the pre-filter stainless steel filter element 504, and the pre-filter A flexible joint 506 is provided at the bottom of the filter outlet 503, and a pre-filter sewage outlet 507 is provided on the other side of the pre-filter 501. A sewage outlet component 6 is installed on one side of the filter assembly 5, and a sewage faucet 7 is fixedly connected to the output end of the sewage outlet component 6. A water basin 8 is installed between the purified water faucet 4 and the sewage faucet 7. The sewage outlet component 6 includes a sewage pipe 601 fixedly connected to the inside of the one-way valve 207, and a second tee 602 is fixedly connected to the outer wall of the sewage pipe 601. A throttle valve 603 is provided at the input end of one side of the second tee 602, and a sewage pipe 604 is fixedly connected to the top of the second tee 602.

[0024] When in use, the throttle valve 603 below the pre-filter 501 is opened to the minimum flow position, the device enters the backwash process and continues to discharge sewage for 2 minutes, then the three-way ball valve 101 is opened to the water purification position, the purified water tap 4 is opened, and the sewage discharge tap 7 is closed. The water purification process continues for 2 minutes, and the throttle valve 603 below the pre-filter 501 is opened to the middle flow position, and enters the backwash mode again for 2 minutes. Repeat the operation 2 to 3 times to switch between the water purification and backwash modes, which can effectively and thoroughly remove the residual impurities in the ultrafiltration membrane water purifier filter element 202 and the pre-filter 501. By rotating the handle of the three-way ball valve 101 to change the water purification mode, the backwash mode can be effectively and thoroughly removed. With respect to the water inlet and outlet directions of the water purifier, the outer cavity 204 of the ultrafiltration membrane water purifier filter element forms a reverse pressure on the inner cavity 203 of the ultrafiltration membrane water purifier filter element, and water molecules enter into the inner cavity 203 of the ultrafiltration membrane water purifier filter element through countless 0.01 μm micropores on the filter element membrane wall under the action of water pressure. The dirt and impurities remaining in the inner cavity 203 of the ultrafiltration membrane water purifier filter element are removed by reverse water flow, and the dirt and impurities are discharged from the water purifier body through the sewage faucet 7. The inner cavity 203 of the ultrafiltration membrane water purifier filter element maintains operation in a clean environment for a long time, thereby extending the service life of the ultrafiltration membrane water purifier filter element 202, improving the quality of purified water, and reducing costs.

[0025] Embodiment 2:

[0026] like Figure 3-Figure 4 As shown, the input end of the second purified water outlet component mechanism 3b is fixedly connected to the cylindrical shell 201 of the water purifier.

[0027] This embodiment is almost identical to the backwashing device of the first embodiment, except that there is only one purified water outlet and backwashing water inlet 302 in the middle of the cylindrical shell 201 of the water purifier. The new solution is to disassemble the top of the cylindrical shell of the water purifier to directly connect the backwashing water pipe 104 and directly connect it to the purified water faucet 4 through the purified water outlet assembly 3. The two water inlets and outlets are in the same direction or opposite directions and are located at 1 / 3 of the length of the shell for easy installation and maintenance. The rest of the structure is exactly the same as the first embodiment.

[0028] 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 internal pressure ultrafiltration membrane water purifier with backwashing function, comprising a water flow control component (1), characterized in that: An internal pressure ultrafiltration membrane water purifier assembly (2) is provided at the bottom of the water flow control assembly (1); a purified water outlet assembly (3) is installed at the output end of the internal pressure ultrafiltration membrane water purifier assembly (2); the purified water outlet assembly (3) is a first purified water outlet assembly (3a) or a second purified water outlet assembly (3b); and a purified water faucet (4) is fixedly connected to the output end of the purified water outlet assembly; A filter assembly (5) is installed at the bottom of the water flow control component mechanism (1), a sewage outlet component mechanism (6) is installed on one side of the filter assembly (5), a sewage faucet (7) is fixedly connected to the output end of the sewage outlet component mechanism (6), and a water basin (8) is installed between the purified water faucet (4) and the sewage faucet (7).

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

3. The internal pressure ultrafiltration membrane water purifier with backwashing function according to claim 2, characterized in that: The internal pressure ultrafiltration membrane water purifier assembly (2) comprises a water purifier cylindrical shell (201) arranged at the bottom of the backwash water pipe (104), an ultrafiltration membrane water purifier filter element (202) is arranged inside the water purifier cylindrical shell (201), an ultrafiltration membrane water purifier filter element inner cavity (203) is arranged inside the water purifier cylindrical shell (201), an ultrafiltration membrane water purifier filter element outer cavity (204) is arranged outside the ultrafiltration membrane water purifier filter element inner cavity (203), a water purifier flange end cover (205) is arranged on one side of the water purifier cylindrical shell (201), a water purifier sewage outlet (206) is arranged on one side of the water purifier cylindrical shell (201), and a one-way valve (207) is arranged on one side of the water purifier sewage outlet (206).

4. The internal pressure ultrafiltration membrane water purifier with backwashing function according to claim 3, characterized in that: The first purified water outlet component (3a) comprises a first tee (301) fixedly connected to the output end of the backwash water pipe (104); a water purifier purified water outlet and a backwash water inlet (302) are provided at the bottom of the first tee (301); a purified water pipe (303) is fixedly connected to one side of the first tee (301); and the bottoms of the water purifier purified water outlet and the backwash water inlet (302) are fixedly connected to the cylindrical shell (201) of the water purifier.

5. The internal pressure ultrafiltration membrane water purifier with backwashing function according to claim 3, characterized in that: The input end of the second purified water outlet component mechanism (3b) is fixedly connected to the cylindrical shell (201) of the water purifier.

6. The internal pressure ultrafiltration membrane water purifier with backwashing function according to claim 2, characterized in that: The filter assembly (5) comprises a pre-filter (501) arranged at the bottom of the three-way valve tap water outlet (105); a pre-filter tap water inlet (502) is provided at the top of one side of the pre-filter (501); a pre-filter water outlet (503) is provided at the bottom of one side of the pre-filter (501); a pre-filter stainless steel filter element (504) is provided inside the pre-filter (501); a pre-filter stainless steel filter element outer cavity (505) is provided outside the pre-filter stainless steel filter element (504); a flexible joint (506) is provided at the bottom of the pre-filter water outlet (503); and a pre-filter sewage outlet (507) is provided at the other side of the pre-filter (501).

7. The internal pressure ultrafiltration membrane water purifier with backwashing function according to claim 3, characterized in that: The sewage outlet component (6) comprises a sewage pipe (601) fixedly connected to the inside of the one-way valve (207); a second tee (602) is fixedly connected to the outer wall of the sewage pipe (601); a throttle valve (603) is provided at one input end of the second tee (602); and a sewage pipe (604) is fixedly connected to the top of the second tee (602).

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