CN213895457U - Pre-filter for tap water treatment - Google Patents

Pre-filter for tap water treatment Download PDF

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Publication number
CN213895457U
CN213895457U CN202022871746.3U CN202022871746U CN213895457U CN 213895457 U CN213895457 U CN 213895457U CN 202022871746 U CN202022871746 U CN 202022871746U CN 213895457 U CN213895457 U CN 213895457U
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shell
filter element
water
filtering
membrane filter
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CN202022871746.3U
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李占川
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Abstract

The utility model discloses a pre-filter for tap water treatment, which comprises a shell, an end cover connected with the shell and a filter membrane filter element arranged in the shell; the end cover is provided with a water inlet and a water outlet, the water inlet is communicated with a cavity formed by the inner wall of the shell and the outer filtering surface of the filtering membrane filter element, and the water outlet is communicated with the inner cavity of the filtering membrane filter element; wherein, a filter screen is fixedly arranged at the water outlet end of the filtering membrane filter element, and a slow-release scale inhibitor is placed in an inner cavity of the filtering membrane filter element; the filtering precision of the filtering membrane filter element is 0.01-0.22 micron. The utility model discloses when purifying and filtering the running water, only prevent appearing and deposiing of carbonate to can detach the mineral substance and the microelement in the running water, the running water after purifying and filtering is basicity, detects the standard that accords with the drinking water completely through the disease accuse center. The utility model is suitable for an among the running water processing system for provide more healthy, pure drinking water for the user.

Description

Pre-filter for tap water treatment
Technical Field
The utility model belongs to the technical field of the running water is handled, a leading filter is related to, specifically speaking is a leading filter for running water is handled.
Background
The tap water is water which is purified and disinfected by a tap water treatment plant and is produced by the tap water treatment plant and meets the corresponding standard for life and production of people. After the tap water is purified, the purified tap water needs to be conveyed to users by using a water conveying pipeline, but the secondary pollution to the tap water is inevitable due to the long pipeline and the secondary pressurization to the tap water. With the improvement of the living standard of people, the quality requirement of people on drinking water is higher and higher, so a front filter is often installed in each family to filter the drinking water entering the family. However, the prefilter with the existing structure often has the following defects when in use:
firstly, the existing prefilter generally adopts a filter structure of a composite filter screen or a PP cotton filter element, the filtering precision can reach 40 microns at most, the prefilter can effectively filter macromolecular harmful substances such as silt, rust, colloid and the like in water, but cannot effectively filter microorganisms such as bacteria, viruses and the like bred in tap water, and further cannot achieve the effect of purifying water quality.
The pre-filter adopting the PP cotton filter element has the advantages that due to the winding structure of the PP cotton filter element, the filter precision is realized by the bridge principle, the blockage phenomenon is easy to occur during use, and the filter element needs to be frequently replaced. A large amount of PP cotton filter elements are used and replaced, so that the use cost of a user is increased, and simultaneously, the waste of resources and the pollution to the environment are caused.
Thirdly, the filter element in the prior prefilter is generally thin, the space formed by the inner filter surface is small, and the whole prefilter is not provided with a secondary sealing structure, so that a proper amount of scale inhibitor cannot be put into the prefilter with the structure, calcium and magnesium ions in tap water cannot be effectively removed, and the generation of scale during the heating of the tap water cannot be prevented.
SUMMERY OF THE UTILITY MODEL
For solving the above not enough that exists among the prior art, the utility model aims at providing a leading filter for running water is handled to reach and to purify quality of water, prevent the incrustation scale, and then provide the purpose more healthy, clean drinking water for the user.
In order to achieve the above object, the utility model adopts the following technical scheme: a pre-filter for tap water treatment comprises a shell, an end cover connected to the shell and a filtering membrane filter element arranged in the shell; the end cover is provided with a water inlet and a water outlet, the water inlet is communicated with a cavity formed by the inner wall of the shell and the outer filtering surface of the filtering membrane filter element, and the water outlet is communicated with the inner cavity of the filtering membrane filter element;
wherein, a filter screen is fixedly arranged at the water outlet end of the filtering membrane filter element, and a slow-release scale inhibitor is placed in an inner cavity of the filtering membrane filter element; the filtering precision of the filtering membrane filter element is 0.01-0.22 micron.
As the utility model discloses a injecture, the shell bottom has set firmly the blow off pipe, be provided with the blowdown ball valve on the blow off pipe.
As a further limitation of the present invention, the end cap and the housing are connected by a screw thread; an O-shaped sealing ring is arranged in the groove of the end cover, and the O-shaped sealing ring and the end cover form a sealing pair.
As another limitation of the utility model, two ends of the filtering membrane filter element are provided with sealing gaskets; wherein, the top end sealing gasket is contacted with the end cover, and the bottom end sealing gasket is contacted with the floor supporting rib of the shell.
As a further limitation of the utility model, the shell is a structure made of transparent material.
As a third limitation of the present invention, the filter membrane cartridge is made of an organic folded membrane.
As a further limitation of the utility model, the slow release scale inhibitor is FOF solid scale inhibitor.
Since the technical scheme is adopted, compared with the prior art, the utility model, the beneficial effect who gains is:
(1) the filtering precision of the middle filtering membrane filter element of the utility model is 0.01-0.22 micron, which can effectively filter the microorganisms such as virus (18-450 nm), bacteria (0.2-5 micron) and the like in the tap water, can thoroughly realize the filtering and purification of the tap water, and further provide healthier and cleaner drinking water for users; and the utility model discloses having placed the slowly-releasing antisludging agent in filtering membrane filter core inside cavity, when purifying the running water, can having released the running water according to certain proportion with the slowly-releasing antisludging agent, can prevent aquatic calcium magnesium ion to change into calcium carbonate and magnesium carbonate during the running water heating, can effectively prevent the formation of incrustation scale. The slow-release scale inhibitor in the filter element of the filter membrane can be released to 90% of effective solubility within 10 minutes after meeting water, and the scale inhibition effect can reach more than 99% when the concentration of the slow-release scale inhibitor in water reaches 0.5-1.0 ppm, so that the scale can be effectively prevented from being generated below 200 ℃.
(2) The utility model discloses the bottom of well shell is provided with blow off pipe and blowdown ball valve, utilizes running water processing system's backpressure, and the running water can flow back and carry out the backwash to the filtration membrane filter core, and then can easily detach the dirt of adhering to the outer filtering surface of filtration membrane filter core, can effectively guarantee the higher filtration flux of filtration membrane filter core, has prolonged the life of filtration membrane filter core greatly.
(3) The utility model provides a through threaded connection between end cover and the shell, simple structure, dismantlement convenience, after the slowly-releasing antisludging agent dosage reduces in filtering membrane filter core, the user of being convenient for supplyes the interpolation to it.
(4) The utility model discloses in the O type sealing washer that sets up with sealed the pad, the cost of manufacture is low, and can guarantee to install good sealed effect, and then can realize filtering the abundant thorough purification of running water.
(5) The utility model provides a shell constitutes for transparent material, and the user of being convenient for observation device is inside to filter the situation of membrane filter core, makes the user in time carry out the backwash or change to filter the membrane filter core, and then guarantees the good filter effect of device.
To sum up, the utility model discloses convenient to use, cost of manufacture are low, can thoroughly purify the running water, prevent the production of incrustation scale. The utility model discloses when purifying and filtering the running water, only prevent appearing and deposiing of carbonate to can detach the mineral substance and the microelement in the running water, the running water after purifying and filtering is basicity, detects the standard that accords with the drinking water completely through the disease accuse center.
The utility model is suitable for an among the running water processing system for provide more healthy, pure drinking water for the user.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a longitudinal sectional view of the overall structure of an embodiment of the present invention;
fig. 2 is a schematic view of a usage status of the embodiment of the present invention;
in the figure: 1. a housing; 2. an end cap; 3. a filtration membrane cartridge; 4. a blow-off pipe; 5. a blowdown ball valve; 6. an O-shaped sealing ring; 7. a gasket; 8. filtering with a screen; 9. a slow release scale inhibitor; 10. a water inlet; 11. and (7) a water outlet.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the preferred embodiments described herein are for purposes of illustration and understanding only and are not intended to limit the invention.
Example a Pre-Filter for tap Water treatment
As shown in fig. 1, the present embodiment includes a housing 1, an end cap 2 attached to the housing 1, and a filter membrane cartridge 3 provided inside the housing 1. The filtering precision of the filtering membrane filter element 3 is 0.01-0.22 micron, and tap water can be effectively and thoroughly purified and filtered; the slow release scale inhibitor 9 is also placed in the inner cavity of the filtering membrane filter element 3, and the slow release scale inhibition technology is adopted, so that the generation of scale can be prevented below 200 ℃.
The shell 1 is as the frame construction of leading filter, wholly adopts transparent material, and the condition of the inside filtration membrane filter core 3 of shell 1 is surveyd to the user of being convenient for to can be in time to filtration membrane filter core 3 backwash or change. The end cover 2 is used as a sealing structure of the shell 1 and is provided with a water outlet 11 and a water inlet 10, specifically, as shown in fig. 1, the water inlet 10 of the end cover 2 is communicated with a cavity formed by the inner wall of the shell 1 and the outer filtering surface of the filtering membrane filter element 3, and the water outlet 11 of the end cover 2 is communicated with the inner cavity of the filtering membrane filter element 3. Wherein, can dismantle the connection through the screw thread between end cover 2 and the shell 1, and be provided with O type sealing washer 6 in the ditch inslot of end cover 2, O type sealing washer 6 and end cover 2 form sealed vice, can guarantee good sealed effect. The O-shaped sealing ring 6 is used as a common general part on the market, so that the manufacturing cost is low, and the purchase and the replacement are simple and convenient.
The bottom of shell 1 still sets firmly blow off pipe 4, is provided with blowdown ball valve 5 on the blow off pipe 4, and after the current filter used the obvious reduction of a period water flux, the user can close water inlet 10 on the end cover 2 to open the blowdown ball valve 5 on the blow off pipe 4, utilize running water processing system's backpressure, make the running water backward flow wash filtration membrane filter core 3.
The filter membrane and filter element 3 is used as a core structure of the pre-filter and is integrally made of an organic folding membrane with the filtering precision of 0.01-0.22 micron. The filtering membrane filter element 3 adopted by the embodiment not only can filter macromolecular harmful substances such as silt, rust and the like in tap water, but also can filter microorganisms such as viruses, bacteria and the like bred in the tap water. As shown in fig. 1, a filter screen 8 is fixedly arranged at the water outlet end of the filtering membrane filter element 3, so that the filtering membrane filter element 3 can form a secondary sealing structure, a slow-release scale inhibitor 9 can be placed in the inner cavity of the filtering membrane filter element 3 for a long time, and by utilizing the slow-release scale inhibition technology, calcium and magnesium ions in tap water can be prevented from forming carbonate while the tap water is purified and filtered, and scale can be prevented from being generated. In this embodiment, the filter screen 8 is a stainless steel filter screen 8, and the slow-release scale inhibitor 9 is a FOF solid scale inhibitor.
The two ends of the filtering membrane filter element 3 are respectively provided with a sealing gasket 7, when the filtering membrane filter element 3 is arranged inside the shell 1, the sealing gasket 7 at the top end can be in close contact with the end cover 2, and the sealing gasket 7 at the bottom end can be in close contact with the floor supporting rib of the shell 1, so that the tap water can be fully filtered when the front filter works.
The use process of this embodiment is as follows:
firstly, a water inlet 10 and a water outlet 11 of a front filter end cover 2 are sequentially connected to a household of a tap water treatment system; tap water enters a cavity formed by the inner wall of the shell 1 and the outer filtering surface of the filtering membrane filter element 3 through the water inlet 10 of the end cover 2, and is filtered by the filtering membrane filter element 3, so that harmful substances such as silt, rust, bacteria, viruses and the like in the tap water can be filtered; meanwhile, the slow-release scale inhibitor 9 placed in the cavity of the filter element 3 of the filter membrane can be gradually dissolved in tap water to prevent calcium and magnesium ions in the tap water from forming calcium carbonate and magnesium carbonate and prevent scale from being generated; then, the purified and filtered tap water enters water using equipment such as a water heater and a washing machine of a user through the water outlet 11 of the end cover 2 and is used as domestic water for the user.
When discovering that filtration membrane filter core 3 blocks up, when needing to carry out the backwash, at first close water inlet 10 on the end cover 2, then open blowdown ball valve 5 on the blow off pipe 4 in 1 bottom of shell, through running water processing system's backpressure this moment, the running water can flow back and carry out the backwash to filtration membrane filter core 3, and the dirt that adheres to on the outer filtering surface of filtration membrane filter core 3 can drop, along with the running water from blowdown ball valve 5 discharge.
When the filtering membrane filter element 3 needs to be replaced (generally, one year), the filtering membrane filter element 3 in the shell 1 can be replaced after the end cover 2 is detached from the shell 1. When the slow-release scale inhibitor 9 in the filtering membrane filter element 3 needs to be supplemented, the end cover 2 is detached from the shell 1, the filter screen 8 at the water outlet end of the filtering membrane filter element 3 is taken down, and the slow-release scale inhibitor 9 can be supplemented into the inner cavity of the filtering membrane filter element 3.
The pre-filter has the filtering precision which is 400-600 times that of the existing pre-filter in the market, has higher water flux, can filter 2-3 parts of tap water per hour, and can provide sufficient healthy domestic water for users.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or some technical features can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A pre-filter for treatment of tap water, characterized by: comprises a shell, an end cover connected with the shell and a filtering membrane filter element arranged in the shell; the end cover is provided with a water inlet and a water outlet, the water inlet is communicated with a cavity formed by the inner wall of the shell and the outer filtering surface of the filtering membrane filter element, and the water outlet is communicated with the inner cavity of the filtering membrane filter element;
wherein, a filter screen is fixedly arranged at the water outlet end of the filtering membrane filter element, and a slow-release scale inhibitor is placed in an inner cavity of the filtering membrane filter element; the filtering precision of the filtering membrane filter element is 0.01-0.22 micron.
2. A pre-filter for treatment of tap water according to claim 1, wherein: the bottom of the shell is fixedly provided with a drain pipe, and a drain ball valve is arranged on the drain pipe.
3. A pre-filter for tap water treatment according to claim 2, wherein: the end cover is connected with the shell through threads; an O-shaped sealing ring is arranged in the groove of the end cover, and the O-shaped sealing ring and the end cover form a sealing pair.
4. A pre-filter for treatment of mains water according to any of claims 1-3, characterized in that: sealing gaskets are arranged at two ends of the filtering membrane filter element; wherein, the top end sealing gasket is contacted with the end cover, and the bottom end sealing gasket is contacted with the floor supporting rib of the shell.
5. A pre-filter for tap water treatment according to claim 4, wherein: the shell is made of transparent materials.
6. A pre-filter for treatment of tap water according to any of claims 1-3, 5, characterized in that: the filter membrane element is made of organic folding membrane.
7. A pre-filter for tap water treatment according to claim 6, wherein: the slow release scale inhibitor is FOF solid scale inhibitor.
CN202022871746.3U 2020-12-04 2020-12-04 Pre-filter for tap water treatment Active CN213895457U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022871746.3U CN213895457U (en) 2020-12-04 2020-12-04 Pre-filter for tap water treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022871746.3U CN213895457U (en) 2020-12-04 2020-12-04 Pre-filter for tap water treatment

Publications (1)

Publication Number Publication Date
CN213895457U true CN213895457U (en) 2021-08-06

Family

ID=77100124

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022871746.3U Active CN213895457U (en) 2020-12-04 2020-12-04 Pre-filter for tap water treatment

Country Status (1)

Country Link
CN (1) CN213895457U (en)

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