WO2024099354A1 - 具有反冲洗功能的叠片复合式横向前置过滤器 - Google Patents

具有反冲洗功能的叠片复合式横向前置过滤器 Download PDF

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Publication number
WO2024099354A1
WO2024099354A1 PCT/CN2023/130443 CN2023130443W WO2024099354A1 WO 2024099354 A1 WO2024099354 A1 WO 2024099354A1 CN 2023130443 W CN2023130443 W CN 2023130443W WO 2024099354 A1 WO2024099354 A1 WO 2024099354A1
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WO
WIPO (PCT)
Prior art keywords
backwashing
subunit
filter
water
laminated
Prior art date
Application number
PCT/CN2023/130443
Other languages
English (en)
French (fr)
Inventor
杨德峰
吴少海
刘小林
朱航海
Original Assignee
海宁市倍世环保科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202211411275.5A external-priority patent/CN115671837A/zh
Priority claimed from CN202223003821.XU external-priority patent/CN218794261U/zh
Application filed by 海宁市倍世环保科技有限公司 filed Critical 海宁市倍世环保科技有限公司
Publication of WO2024099354A1 publication Critical patent/WO2024099354A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/46—Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions

Definitions

  • the invention relates to a laminated composite transverse pre-filter with a backwashing function, belonging to the technical field of water purification equipment.
  • the filter element of the pre-filter on the market is mainly a filter mesh structure.
  • the cleaning methods of the filter element include forward flushing, back flushing, siphon cleaning or brushing.
  • the laminated filter is composed of a set of discs with grooves on both sides.
  • the intersections formed by the edges of the grooves can intercept solids in the water. Because it has the functions of surface interception and deep coagulation at the same time, the filtering effect is greatly improved.
  • the filter element laminated discs need to be cleaned, they can be easily rinsed and then assembled for reuse.
  • the pre-filters in the prior art are mostly in a "T" shape, with the filter bottle installed vertically on the machine head, and the filter element installed in the filter bottle in a vertical arrangement.
  • this structure has a good filtering effect, due to the certain length of the filter bottle and the filter element, it often takes up a large installation space in the height direction during installation, which is restricted by the installation space and has great limitations in application.
  • the present invention aims to provide a transversely arranged pre-filter which has an optimized structure, can be backwashed in situ, and combines a laminated filter structure with a filter screen filter structure.
  • One of the purposes of the present invention is to solve the deficiencies of the prior art pre-filter and provide a laminated composite transverse pre-filter with backwashing function.
  • the pre-filter structure is optimized, can be backwashed in situ, has a good flushing effect, can match the transverse installation space, and combines the laminated filter structure and the filter screen filter structure.
  • the effective combination of the two can play a synergistic filtering role.
  • a laminated composite transverse pre-filter with backwashing function comprises a filter bottle, one end of which is provided with a water inlet assembly, and the other end of which is provided with a water outlet and sewage discharge assembly, characterized in that: the water outlet and sewage discharge assembly is provided with a base, a water outlet port and a sewage discharge port adapted to the end of the filter bottle, a base cavity is provided in the base, a laminated composite filter unit is provided in the filter bottle, the laminated composite filter unit comprises a filtering and backwashing subunit and a laminated subunit, the filtering and backwashing subunit is inserted in the laminated subunit, and the filtering and backwashing subunit comprises an independent filtering functional section and a backwashing functional section; A raw water chamber is provided between the sheet unit and the filter bottle, a primary purified water chamber is provided between the laminated sheet unit and the filtering functional section, a secondary purified water chamber is provided inside the filtering functional section, the raw water chamber and the primary purified water chamber are
  • the water inlet assembly includes a water inlet connector and a water inlet end cover
  • the water inlet connector is at least axially fixedly connected to the filter bottle
  • the water inlet end cover is coaxially arranged at the inner end of the water inlet connector
  • the water inlet end cover is provided with a plurality of end cover water passages
  • the end cover water passages are connected with the inner cavity of the water inlet connector
  • the backwash flow channel control cover is fixedly arranged at the inner end of the water inlet end cover or is integrally formed with the water inlet end cover
  • the filtration and backwashing subunit moves axially relative to the laminated subunit in the direction of the inlet water flow
  • the end cover water passage can be disconnected from the water inlet channel and open the backwash water channel
  • the filtration and backwashing subunit moves axially relative to the laminated subunit in the direction of the inlet water flow
  • the end cover water passage can be connected with the water inlet channel and close the backwash water channel.
  • the adjustment component is arranged between the backwash subunit and the base, and the adjustment component includes an elastic reset member, which is sleeved on the filtering and backwashing subunit, and the two ends of the elastic reset member are respectively abutted against the inner wall of the base and the end of the filtering and backwashing subunit, and there is a pressure difference ⁇ P on both sides of the end of the filtering and backwashing subunit, ⁇ P ⁇ 0, when the action force corresponding to ⁇ P is greater than the reaction force of the elastic reset member, the elastic reset member is compressed, and the filtering and backwashing subunit moves axially in the direction of the inlet water flow; when the action force corresponding to ⁇ P is less than the reaction force of the elastic reset member, the elastic reset member is reset, and the filtering and backwashing subunit moves axially against the direction of the inlet water flow;
  • the adjustment component is arranged between the backwash subunit and the laminate subunit, and the adjustment component includes an elastic reset member, which is sleeved on the filtration and backwash subunit.
  • the filtration and backwash subunit is provided with a limiting portion, and the two ends of the elastic reset member are respectively abutted against the limiting portion and the inner wall of the laminate subunit.
  • the filtering and backwashing subunit comprises a filter frame
  • the filter frame comprises a backwashing frame section, a filtering frame section and a water outlet port connecting section
  • the backwashing frame section is fixedly provided with a backwashing filter
  • the filtering frame section is fixedly provided with a
  • a filter screen is provided
  • the laminated subunit comprises a laminated frame and a plurality of laminated sheets fixed outside the laminated frame.
  • a first end cover and a second end cover are respectively provided at two ends of the laminated frame, and a water inlet channel is provided at the first end cover.
  • the filtering and backwashing subunit is inserted in the laminated subunit.
  • a backwashing opening cover is provided on one side of the filter screen frame located at the second end cover, and the second end cover is provided with a raw water water passage channel, and the backwashing opening cover is provided with a backwashing drainage channel.
  • the base cavity is connected with the raw water cavity through the raw water passage channel and the backwashing drainage channel.
  • a sealing part is provided at the backwashing frame section near the outer side of the first end cover, and the elastic reset part is sleeved on the water outlet port connecting section, and the two ends of the elastic reset part are respectively abutted against the inner wall of the base and the backwashing opening end cover, and there is a pressure difference ⁇ P on both sides of the backwashing opening end cover, and the filtering and backwashing subunit moves axially relative to the laminated subunit in the direction of the inlet water flow, and the water inlet channel is closed by the sealing part; the filtering and backwashing subunit moves axially relative to the laminated subunit in the direction of the inlet water flow, and the sealing part opens the water inlet channel.
  • the laminate subunit further comprises a laminate adjusting member, and the laminate skeleton is provided with an adaptable adjusting portion, and the fixing of the laminate and the adjustment of the filter aperture are achieved through the cooperation between the adjusting portion and the laminate adjusting member.
  • a lamination frame limiting portion is further provided in the pre-filter, and a matching positioning portion is provided in the lamination frame, and the position of the lamination frame in the filter bottle is fixed by abutting cooperation between the positioning portion and the lamination frame limiting portion, and a sealing element or interference fit is provided between the first end cover and the filter bottle; and both ends of the filtering functional section are slidingly and sealingly connected to the inner wall of the lamination sub-unit.
  • the elastic return member is an annular compression spring.
  • the water inlet assembly is also provided with a pressure buffer device for preventing water hammer.
  • the pressure buffer device includes a cylinder, an elastic element arranged in the cylinder and a sealing cover.
  • An elastic element abutment portion is provided in the cylinder, and two ends of the elastic element abut against the elastic element abutment portion and the inner side of the sealing cover respectively.
  • the sealing cover is slidably sealed with the inner wall of the cylinder; the outer surface of the sealing cover is connected to the purified water chamber, and when the pressure in the pre-filter increases, the elastic element can be compressed, and after the pressure increase is relieved, the elastic element can be reset.
  • the sewage discharge port is provided with a sewage discharge valve
  • the sewage discharge valve is a manual sewage discharge valve, an electric sewage discharge valve, or a manual-automatic sewage discharge valve.
  • the pre-filter structure is optimized, can be backwashed in situ, has a good flushing effect, can match the lateral installation space, and combines the stacked filter structure and the filter screen filter structure.
  • the effective combination of the two can play a synergistic filtering role.
  • Fig. 1 is a schematic structural diagram of the present invention
  • FIG2 is a schematic diagram of the filtration and backwashing unit in FIG1 ;
  • Fig. 3 is an exploded view of Fig. 2;
  • Fig. 4 is a cross-sectional view of Fig. 1 (filtering state);
  • FIG. 5 is a cross-sectional view of FIG. 1 (backwashing and sewage discharge state).
  • a laminated composite transverse pre-filter with a backwashing function includes a filter bottle 1, one end of the filter bottle 1 is provided with a water inlet component 2, and the other end is provided with a water outlet and sewage discharge component 3, the water outlet and sewage discharge component 3 is provided with a base 31, a water outlet port 32 and a sewage discharge port 33 adapted to the end of the filter bottle 1, a base cavity is provided in the base 31, and a laminated composite filter unit is provided in the filter bottle 1, the laminated composite filter unit includes a filter and backwashing subunit 4 and a laminated subunit 5, the filter and backwashing subunit 4 is inserted in the laminated subunit 5, and the filter and backwashing subunit 4 includes a filter functional section and a backwashing functional section; a raw water cavity is provided between the laminated subunit 5 and the filter bottle 1, a primary purified water cavity is provided between the laminated subunit 5 and the filter functional section, a secondary purified water cavity is provided inside the filter functional section,
  • the filter holes of the sheet unit 5 are connected, the primary purified water chamber and the secondary purified water chamber are connected through the filter holes of the filter function section, the secondary purified water chamber is connected to the water outlet port 32, and the raw water chamber is connected to the base chamber and the sewage discharge port 33; a water inlet channel is provided between the raw water chamber and the water inlet component 2, and a backwash flow channel control cover 6 is provided in the water inlet component 2, a backwashing function section is provided with a backwashing water channel and is located in the backwashing flow channel control cover 6, an adjustment component is provided between the filtration and backwashing subunit 4 and the base 31, and through the cooperation of the adjustment component, the filtration and backwashing subunit 4 can move axially relative to the laminated subunit 5, the filtration and backwashing subunit 4 moves axially along the direction of the inlet water flow, and can close the water inlet channel and open the backwashing water channel; the filtration and backwashing subunit 4 moves axially against the direction of the inlet water
  • the water inlet assembly 2 includes a water inlet connector 21 and a water inlet end cap 22.
  • the water inlet connector 21 is fixedly connected to the filter bottle 1 at least axially (specifically, it can be fixed in both axial and circumferential directions, or it can be only fixed in the axial direction, and the axial direction can be rotated, such as 360 degrees, according to the needs of conventional selection), and the water inlet end cap 22 is coaxially arranged at the inner end of the water inlet connector 21.
  • the water inlet end cap 22 is provided with a plurality of end cap water passages 22a, and the end cap water passages 22a is connected to the inner cavity of the water inlet connector 21, the backwash flow channel control cover 6 is fixed to the inner end of the water inlet end cover 22 or is integrally formed with the water inlet end cover (the present embodiment preferably adopts integral molding for easy processing), the filtering and backwashing subunit 4 moves axially along the inlet water flow direction relative to the laminated subunit 5, the end cover water passage 22a can be disconnected from the water inlet channel and open the backwash water channel, the filtering and backwashing subunit 4 moves axially against the inlet water flow direction relative to the laminated subunit 5, the end cover water passage 22a can be connected to the water inlet channel and close the backwash water channel.
  • the adjustment component includes an elastic reset member 7, which is sleeved on the filtration and backwashing subunit 4.
  • the two ends of the elastic reset member 7 are respectively abutted against the inner wall of the base 31 and the end of the filtration and backwashing subunit 4.
  • the filtration and backwashing subunit 4 includes a filter skeleton 41, and the filter skeleton 41 includes a backwashing skeleton section, a filtration skeleton section and a water outlet port connecting section.
  • the backwashing skeleton section is fixedly provided with a backwashing filter 42, and the filtration skeleton section is fixedly provided with a filter 43.
  • the laminated subunit 5 includes a laminated skeleton 51 and a plurality of laminates 52 fixed outside the laminated skeleton 51.
  • the two ends of the laminated skeleton 51 are respectively provided with a first end cover 51a and a second end cover 51b, and a water inlet channel 51a1 is provided on the first end cover 51a.
  • the filtration and backwashing subunit 4 is inserted into the laminated subunit 5.
  • the filter skeleton 41 is provided with a backwashing opening cover 44 on one side of the second end cover 51b, and the second end cover 51b is provided with a raw water water passage 51b1.
  • the backwashing opening cover 44 is provided with a backwashing drainage channel 44a.
  • the base cavity passes through the raw water water passage 51b1.
  • the backwash drainage channel 44a is connected to the raw water chamber, and the backwash skeleton section is provided with a sealing portion 45 at a position close to the outer side of the first end cover 51a.
  • the elastic reset member 7 is sleeved on the water outlet port connection section, and the two ends of the elastic reset member 7 are respectively abutted against the inner wall of the base and the backwash opening end cover 44. There is a pressure difference ⁇ P on both sides of the backwash opening end cover 44, and ⁇ P ⁇ 0.
  • the filtering and backwashing subunit 4 moves axially relative to the laminated subunit 5 in the direction of the inlet water flow, and the sealing portion 45 can close the water inlet channel, that is, the water inlet channel 51a1 is closed by the sealing portion 45, thereby blocking the connection between the water inlet channel 51a1 and the end cover water passage 22a; the filtering and backwashing subunit 4 moves axially relative to the laminated subunit 5 in the direction of the inlet water flow, and the sealing portion 45 can open the water inlet channel, that is, after the sealing portion 45 and the water inlet channel 51a1 are opened, the water inlet channel 51a1 is connected to the end cover water passage 22a.
  • the laminate subunit 5 also includes a laminate adjustment member 9.
  • the laminate skeleton 51 is provided with an adaptive adjustment portion.
  • the laminate is fixed and the filter aperture is adjusted by the cooperation between the adjustment portion and the laminate adjustment member 9.
  • an elastic buffer member 10 may also be provided between the laminate adjustment member 9 and the second end cover 51b.
  • a laminated frame limiting portion is provided in the filter bottle 1, the second end cover 51b of the laminated frame 51 abuts against the laminated frame limiting portion, and a sealing element is provided between the first end cover 51a and the filter bottle 1; the two ends of the filtering functional section are slidingly sealed to the inner wall of the laminated sub-unit 5.
  • the elastic reset member 7 is an annular compression spring.
  • the water inlet assembly 2 is also provided with a pressure buffer device 8 for preventing water hammer.
  • the pressure buffer device 8 includes a cylinder, an elastic element arranged in the cylinder, and a sealing cover.
  • An elastic element abutment portion is provided in the cylinder, and the two ends of the elastic element abut against the elastic element abutment portion and the inner side of the sealing cover respectively.
  • the sealing cover is slidably sealed with the inner wall of the cylinder; the outer surface of the sealing cover is connected to the purified water chamber, and when the pressure in the pre-filter increases, the elastic element can be compressed, and the elastic element can be reset after the pressure increase is relieved.
  • the sewage port 33 is provided with a sewage valve, and the sewage valve is a manual sewage valve, an electric sewage valve, or a manual-automatic sewage valve.
  • the sewage discharge port 33 is closed, the base cavity is closed, and the pressure difference ⁇ P on both sides of the end of the filtering and backwashing subunit 4 is 0.
  • the elastic reset member is in the initial state, and the positions of the filtering and backwashing subunit 4 and the laminated subunit 5 are in the initial state.
  • the backwashing channel (backwashing filter) of the filtering and backwashing subunit 4 is located in the backwashing flow channel control cover 6. As shown in FIG.
  • raw water enters from the water inlet assembly 2, passes through the end cover water channel 22a of the water inlet end cover 22, flows through the water inlet channel 51a1, enters the raw water cavity, and after being filtered by the laminated subunit 5, enters the primary purified water cavity, and then after being filtered by the filtering functional section, enters the secondary purified water cavity, and then is discharged through the water outlet port 32;
  • the water outlet port 32 is closed, the sewage discharge port 33 is opened, and the base cavity is correspondingly opened.
  • the elastic reset member 7 is in a compressed state, and the filtering and backwashing sub-element 4 moves along the inlet water flow direction relative to the laminated sub-element 5.
  • the backwashing channel (backwashing filter screen) of the filtering and backwashing sub-element 4 extends out from the backwashing flow channel control cover 6 and opens.
  • the sealing part 45 closes the water inlet channel, and the raw water enters from the water inlet component 2, passes through the end cover water passage 22a of the water inlet end cover 22, flows through the backwashing filter screen, enters the secondary purification water cavity, and after backwashing the filtering functional section, enters the primary purification water cavity, and then backwashes the laminated subunit 5, flows to the raw water cavity, and then passes through the raw water water passage 51b1 and the backwashing drainage channel 44a into the base cavity, and finally is discharged through the sewage discharge port 33 to realize the backwashing of the filtering functional section and the laminated subunit 5.
  • the pre-filter structure is optimized, can be backwashed in situ, has a good flushing effect, can match the lateral installation space, and combines the stacked filter structure and the filter screen filter structure.
  • the effective combination of the two can play a synergistic filtering role.
  • the adjustment component is arranged between the filtering and backwashing subunit and the lamination subunit.
  • the elastic reset member is sleeved on the filter frame 41.
  • the filter frame 41 is provided with a limit portion at the end of the filtering functional section.
  • the two ends of the elastic reset member 7 are respectively abutted against the limit portion and the inner wall of the second end cover 51b.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

一种具有反冲洗功能的叠片复合式横向前置过滤器，包括滤瓶（1），滤瓶（1）设有进水组件（2）以及出水及排污组件（3），滤瓶（1）内设有叠片复合式过滤单元，包括过滤及反冲洗子单元（4）和叠片子单元（5），过滤及反冲洗子单元（4）插设于叠片子单元内（5），过滤及反冲洗子单元（4）包括独立的过滤功能段和反冲洗功能段；叠片子单元（5）与滤瓶（1）间设有原水腔，叠片子单元（5）与过滤功能段间设有一级净化水腔，过滤功能段内部设有二级净化水腔，原水腔和一级净化水腔通过叠片子单元（5）的过滤孔连通，一级净化水腔与二级净化水腔通过过滤功能段的过滤孔连通，二级净化水腔与出水端口（32）连通。该前置过滤器结构得到优化，能够原位反冲洗，冲洗效果好，且能够匹配横向的安装空间。

Description

具有反冲洗功能的叠片复合式横向前置过滤器 技术领域
本发明涉及一种具有反冲洗功能的叠片复合式横向前置过滤器，属于净水设备技术领域。
背景技术
市政自来水存在管道锈蚀、泥沙等二次污染造成家庭用水水质变差，通常在入户管道上安装前置过滤器以改善用水水质。目前市场上的前置过滤器的滤芯主要以滤网式结构为主，滤芯的清洗方法有正冲洗、反冲洗、虹吸清洗或刷洗等。
叠片过滤器是由一组两面带沟槽的盘片组成，水流流经叠片，沟槽棱边形成的交叉点可以把水中固体物截留，由于同时具有了表面拦截和深度凝聚的作用，大大提高了过滤效果。滤芯叠片需清洗时，可以很方便的冲洗干净，然后再装配重复利用。
无论是单一的滤网式结构，还是叠片式结构，都存在过滤效率低，或者失效的风险，如何将二者有效的结合，发挥协同过滤作用，是需要解决的技术问题。
另外，现有技术的前置过滤器多呈“T”字形，滤瓶以竖直状安装于机头，滤芯同样以竖直状排布的方式安装于滤瓶内。这种结构虽然具有良好的过滤效果，但是由于滤瓶和滤芯具有一定的长度，在安装时，往往需要在高度方向上占用较大的安装空间，受到安装空间的制约，应用时的局限性较大。
本发明旨在提供一种结构优化、能够原位反冲洗，且结合了叠片式过滤结构和滤网式过滤结构的横向布置的前置过滤器。
发明内容
本发明的目的之一在于解决现有技术的前置过滤器的不足，提供一种具有反冲洗功能的叠片复合式横向前置过滤器。该前置过滤器结构得到优化，能够原位反冲洗，冲洗效果好，且能够匹配横向的安装空间，且结合了叠片式过滤结构和滤网式过滤结构，二者有效的结合，能发挥协同过滤作用。
本发明解决其技术问题所采用的技术方案是：
具有反冲洗功能的叠片复合式横向前置过滤器，包括滤瓶，所述滤瓶一端设有进水组件，另一端设有出水及排污组件，其特征在于：出水及排污组件设有与滤瓶端部适配的基座、出水端口和排污端口，基座内设有基座腔，滤瓶内设有叠片复合式过滤单元，所述叠片复合式过滤单元包括过滤及反冲洗子单元和叠片子单元，过滤及反冲洗子单元插设于叠片子单元内，过滤及反冲洗子单元包括独立的过滤功能段和反冲洗功能段；叠 片子单元与滤瓶间设有原水腔，叠片子单元与过滤功能段间设有一级净化水腔，过滤功能段内部设有二级净化水腔，原水腔和一级净化水腔通过叠片子单元的过滤孔连通，一级净化水腔与二级净化水腔通过过滤功能段的过滤孔连通，二级净化水腔与出水端口连通，原水腔与基座腔、排污端口连通；所述原水腔与进水组件间设有进水通道，且进水组件内设有反冲洗流道控制罩，反冲洗功能段设有反冲洗水通道且位于反冲洗流道控制罩内，过滤及反冲洗子单元与基座间或叠片子单元间设有调节组件，通过调节组件的配合，过滤及反冲洗子单元能相对于叠片子单元轴向移动，过滤及反冲洗子单元顺进水水流方向轴向移动，能封闭进水通道和打开反冲洗水通道；过滤及反冲洗子单元逆进水水流方向轴向移动，能打开进水通道和关闭反冲洗水通道。
优选的，所述进水组件包括进水连接件和进水端盖，进水连接件与滤瓶至少轴向固定连接，进水端盖同轴设于进水连接件的内端，所述进水端盖设有若干端盖过水通道，端盖过水通道与进水连接件的内腔连通，反冲洗流道控制罩固定设于进水端盖的内端或与进水端盖一体成型，过滤及反冲洗子单元相对于叠片子单元顺进水水流方向轴向移动，端盖过水通道能与进水通道断开并打开反冲洗水通道，过滤及反冲洗子单元相对于叠片子单元逆进水水流方向轴向移动，端盖过水通道能与进水通道连通并关闭反冲洗水通道。
优选的，所述调节组件设于反冲洗子单元与基座间，所述调节组件包括弹性复位件，弹性复位件套设于过滤及反冲洗子单元，弹性复位件的两端分别与基座内壁和过滤及反冲洗子单元的端部抵接，过滤及反冲洗子单元的端部两侧存在压力差△P，△P≥0，△P对应的作用力大于弹性复位件的反作用力时，弹性复位件压缩，过滤及反冲洗子单元顺进水水流方向轴向移动；△P对应的作用力小于弹性复位件的反作用力时，弹性复位件复位，过滤及反冲洗子单元逆进水水流方向轴向移动；
或者，所述调节组件设于反冲洗子单元与叠片子单元间，所述调节组件包括弹性复位件，弹性复位件套设于过滤及反冲洗子单元，过滤及反冲洗子单元设有限位部，弹性复位件的两端分别与限位部和叠片子单元的内壁抵接，过滤及反冲洗子单元的端部两侧存在压力差△P，△P≥0，△P对应的作用力大于弹性复位件的反作用力时，弹性复位件压缩，过滤及反冲洗子单元顺进水水流方向轴向移动；△P对应的作用力小于弹性复位件的反作用力时，弹性复位件复位，过滤及反冲洗子单元逆进水水流方向轴向移动。
优选的，所述过滤及反冲洗子单元包括滤网骨架，所述滤网骨架包括反冲洗骨架段、过滤骨架段和出水端口连接段，反冲洗骨架段固定设有反冲洗滤网，过滤骨架段固定设 有过滤网，叠片子单元包括叠片骨架和固定于叠片骨架外的若干叠片，叠片骨架两端分别设有第一端盖和第二端盖，进水通道设于第一端盖，过滤及反冲洗子单元插设于叠片子单元内部，滤网骨架位于第二端盖的一侧设有反冲洗开启盖，第二端盖设有原水过水通道，反冲洗开启盖设有反冲洗排水通道，基座腔通过原水过水通道、反冲洗排水通道与原水腔连通，反冲洗骨架段在靠近第一端盖外侧的部位设有密封部，所述弹性复位件套设于出水端口连接段，弹性复位件的两端分别与基座内壁和反冲洗开启端盖抵接，反冲洗开启端盖的两侧存在压力差△P，过滤及反冲洗子单元相对于叠片子单元顺进水水流方向轴向移动，通过密封部封闭进水通道；过滤及反冲洗子单元相对于叠片子单元逆进水水流方向轴向移动，密封部打开进水通道。
优选的，所述叠片子单元还包括叠片调节件，叠片骨架设有适配的调节部，通过调节部与叠片调节件的配合，实现叠片的固定及过滤孔径的调节。
优选的，所述前置过滤器内还设有叠片骨架限位部，叠片骨架设有适配的定位部，通过定位部与叠片骨架限位部抵接配合，叠片骨架在滤瓶内的位置固定，第一端盖与滤瓶间设有密封元件或过盈配合；所述过滤功能段两端与叠片子单元内壁之间滑动密封连接。
优选的，所述弹性复位件为环形压缩弹簧。
优选的，所述进水组件还设有防止水锤的压力缓冲装置。
优选的，所述压力缓冲装置包括筒体、设于筒体内的弹性元件以及密封盖，筒体内设有弹性元件抵接部，弹性元件的两端分别与弹性元件抵接部和密封盖内侧抵接，密封盖与筒体内壁滑动密封；密封盖的外表面与净化水腔连通，在前置过滤器内压力升高时，弹性元件能够被压缩，压力升高解除后，弹性元件能够复位。
优选的，所述排污端口设有排污阀，所述排污阀为手动排污阀或电动排污阀或者手自一体排污阀。
本发明的有益效果是：该前置过滤器结构得到优化，能够原位反冲洗，冲洗效果好，且能够匹配横向的安装空间，且结合了叠片式过滤结构和滤网式过滤结构，二者有效的结合，能发挥协同过滤作用。
附图说明
图1是本发明的结构示意图；
图2是图1中过滤及反冲洗单元的示意图；
图3是图2的分解图；
图4是图1的剖视图(过滤状态)；
图5是图1的剖视图(反冲洗排污状态)。
图中：1、滤瓶，2、进水组件，21、进水连接件，22、进水端盖，22a、端盖过水通道，3、出水及排污组件，31、基座，32、出水端口，33、排污端口，4、过滤及反冲洗子单元，41、滤网骨架，42、反冲洗滤网，43、过滤网，44、反冲洗开启端盖，44a、反冲洗排水通道，45、密封部，5、叠片子单元，51、叠片骨架，52、叠片，51a、第一端盖，51b、第二端盖，51b1、原水排水通道，6、反冲洗流道控制罩，7、弹性复位件，8、压力缓冲装置，9、叠片调节件，10、弹性缓冲件。
具体实施方式
下面通过具体实施例，并结合附图，对本发明的技术方案作进一步的具体说明。
实施例：
如图1-5所示，具有反冲洗功能的叠片复合式横向前置过滤器，包括滤瓶1，所述滤瓶1一端设有进水组件2，另一端设有出水及排污组件3，出水及排污组件3设有与滤瓶1端部适配的基座31、出水端口32和排污端口33，基座31内设有基座腔，滤瓶1内设有叠片复合式过滤单元，所述叠片复合式过滤单元包括过滤及反冲洗子单元4和叠片子单元5，过滤及反冲洗子单元4插设于叠片子单元5内，过滤及反冲洗子单元4包括过滤功能段和反冲洗功能段；叠片子单元5与滤瓶1间设有原水腔，叠片子单元5与过滤功能段间设有一级净化水腔，过滤功能段内部设有二级净化水腔，原水腔和一级净化水腔通过叠片子单元5的过滤孔连通，一级净化水腔与二级净化水腔通过过滤功能段的过滤孔连通，二级净化水腔与出水端口32连通，原水腔与基座腔、排污端口33连通；所述原水腔与进水组件2间设有进水通道，且进水组件2内设有反冲洗流道控制罩6，反冲洗功能段设有反冲洗水通道且位于反冲洗流道控制罩6内，过滤及反冲洗子单元4与基座31间设有调节组件，通过调节组件的配合，过滤及反冲洗子单元4能相对于叠片子单元5轴向移动，过滤及反冲洗子单元4顺进水水流方向轴向移动，能封闭进水通道和打开反冲洗水通道；过滤及反冲洗子单元4逆进水水流方向轴向移动，能打开进水通道和关闭反冲洗水通道。
具体到本实施例中，所述进水组件2包括进水连接件21和进水端盖22，进水连接件21与滤瓶1至少轴向固定连接(具体可以是轴向、周向均固定，或者可以是仅仅轴向固定，轴向可以旋转，如360度旋转，根据需要做常规选择)，进水端盖22同轴设于进水连接件21的内端，所述进水端盖22设有若干端盖过水通道22a，端盖过水通道 22a与进水连接件21的内腔连通，反冲洗流道控制罩6固定设于进水端盖22的内端或与进水端盖一体成型(本实施例优选采用一体成型，加工方便)，过滤及反冲洗子单元4相对于叠片子单元5顺进水水流方向轴向移动，端盖过水通道22a能与进水通道断开并打开反冲洗水通道，过滤及反冲洗子单元4相对于叠片子单元5逆进水水流方向轴向移动，端盖过水通道22a能与进水通道连通并关闭反冲洗水通道。
本实施例中，所述调节组件包括弹性复位件7，弹性复位件7套设于过滤及反冲洗子单元4，弹性复位件7的两端分别与基座31的内壁和过滤及反冲洗子单元4的端部抵接，过滤及反冲洗子单元4的端部两侧存在压力差△P，△P≥0，△P对应的作用力大于弹性复位件7的反作用力时，弹性复位件7压缩，过滤及反冲洗子单元4顺进水水流方向轴向移动；△P对应的作用力小于弹性复位件7的反作用力时，弹性复位件7复位，过滤及反冲洗子单元4逆进水水流方向轴向移动。
下面进一步具体阐述过滤及反冲洗子单元的结构，本实例中，所述过滤及反冲洗子单元4包括滤网骨架41，所述滤网骨架41包括反冲洗骨架段、过滤骨架段和出水端口连接段，反冲洗骨架段固定设有反冲洗滤网42，过滤骨架段固定设有过滤网43，叠片子单元5包括叠片骨架51和固定于叠片骨架51外的若干叠片52，叠片骨架51两端分别设有第一端盖51a和第二端盖51b，进水通道51a1设于第一端盖51a，过滤及反冲洗子单元4插设于叠片子单元5内部，滤网骨架41位于第二端盖51b的一侧设有反冲洗开启盖44，第二端盖51b设有原水过水通道51b1，反冲洗开启盖44设有反冲洗排水通道44a，基座腔通过原水过水通道51b1、反冲洗排水通道44a与原水腔连通，反冲洗骨架段在靠近第一端盖51a外侧的部位设有密封部45，所述弹性复位件7套设于出水端口连接段，弹性复位件7的两端分别与基座内壁和反冲洗开启端盖44抵接，反冲洗开启端盖44的两侧存在压力差△P，△P≥0，过滤及反冲洗子单元4相对于叠片子单元5顺进水水流方向轴向移动，密封部45能够关闭进水通道，也即通过密封部45封闭进水通道51a1，进而阻断进水通道51a1和端盖过水通道22a间的连通；过滤及反冲洗子单元4相对于叠片子单元5逆进水水流方向轴向移动，密封部45能够打开进水通道，也即密封部45与进水通道51a1打开后，进水通道51a1和端盖过水通道22a连通。
本实施例中，针对叠片子单元5的结构具体阐述如下，所述叠片子单元5还包括叠片调节件9，叠片骨架51设有适配的调节部，通过调节部与叠片调节件9的配合，实现叠片的固定及过滤孔径的调节。优选方案下，叠片调节件9与第二端盖51b之间还可以设有弹性缓冲件10。
本实施例中，所述滤瓶1内设有叠片骨架限位部，叠片骨架51的第二端盖51b与叠片骨架限位部抵接，第一端盖51a与滤瓶1间设有密封元件；所述过滤功能段两端与叠片子单元5内壁之间滑动密封连接。
本实施例中，所述弹性复位件7为环形压缩弹簧。
进一步的说，为了延长前置过滤器的使用寿命，所述进水组件2还设有防止水锤的压力缓冲装置8，所述压力缓冲装置8包括筒体、设于筒体内的弹性元件以及密封盖，筒体内设有弹性元件抵接部，弹性元件的两端分别与弹性元件抵接部和密封盖内侧抵接，密封盖与筒体内壁滑动密封；密封盖的外表面与净化水腔连通，在前置过滤器内压力升高时，弹性元件能够被压缩，压力升高解除后，弹性元件能够复位。
本实施例中，所述排污端口33设有排污阀，所述排污阀为手动排污阀或电动排污阀或者手自一体排污阀。
本发明的工作原理如下：
过滤状态下，排污端口33关闭，基座腔封闭，过滤及反冲洗子单元4端部两侧的压力差△P＝0，此时弹性复位件呈初始状态，过滤及反冲洗子单元4和叠片子单元5的位置处于初始状态，过滤及反冲洗子单元4的反冲洗通道(反冲洗滤网)位于反冲洗流道控制罩6内，如图4所示，原水从进水组件2进入，经由进水端盖22的端盖过水通道22a，流经进水通道51a1，进入原水腔，经过叠片子单元5过滤后，进入一级净化水腔，然后经过滤功能段过滤后，进入二级净化水腔，然后经由出水端口32排出；
反冲洗排污状态下，出水端口32关闭，排污端口33打开，基座腔对应打开，过滤及反冲洗子单元4端部两侧的压力差由△P＝0增至较大，直到对应的作用力大于弹性复位件的反作用力，此时弹性复位件7呈压缩状态，过滤及反冲洗子元件4相对于叠片子元件5顺进水水流方向移动，过滤及反冲洗子元件4的反冲洗通道(反冲洗滤网)从反冲洗流道控制罩6内伸出打开，如图5所示，密封部45封闭进水通道，原水从进水组件2进入，经由进水端盖22的端盖过水通道22a，流经反冲洗滤网，进入二级净化水腔，反向冲洗过滤功能段后，进入一级净化水腔，然后再反向冲洗叠片子单元5后，流至原水腔，然后经过原水过水通道51b1、反冲洗排水通道44a进入基座腔内，最后通过排污端口33排出，实现对过滤功能段和叠片子单元5的反冲洗。
本发明的有益效果是：该前置过滤器结构得到优化，能够原位反冲洗，冲洗效果好，且能够匹配横向的安装空间，且结合了叠片式过滤结构和滤网式过滤结构，二者有效的结合，能发挥协同过滤作用。
以上所述的实施例只是本发明的一种较佳的方案，并非对本发明作任何形式上的限制，在不超出权利要求所记载的技术方案的前提下还有其它的变体及改型。如调节组件设于过滤及反冲洗子单元与叠片子单元间之间，具体的说弹性复位件套设于滤网骨架41，滤网骨架41位于过滤功能段的端部设有限位部，弹性复位件7的两端分别与限位部和第二端盖51b的内壁抵接，此种设置方式在201610948125.6号可反冲洗的前置过滤器组件发明专利中已有类似阐述。

Claims (10)

  1. 具有反冲洗功能的叠片复合式横向前置过滤器，包括滤瓶，所述滤瓶一端设有进水组件，另一端设有出水及排污组件，其特征在于：出水及排污组件设有与滤瓶端部适配的基座、出水端口和排污端口，基座内设有基座腔，滤瓶内设有叠片复合式过滤单元，所述叠片复合式过滤单元包括过滤及反冲洗子单元和叠片子单元，过滤及反冲洗子单元插设于叠片子单元内，过滤及反冲洗子单元包括过滤功能段和反冲洗功能段；叠片子单元与滤瓶间设有原水腔，叠片子单元与过滤功能段间设有一级净化水腔，过滤功能段内部设有二级净化水腔，原水腔和一级净化水腔通过叠片子单元的过滤孔连通，一级净化水腔与二级净化水腔通过过滤功能段的过滤孔连通，二级净化水腔与出水端口连通，原水腔与基座腔、排污端口连通；所述原水腔与进水组件间设有进水通道，且进水组件内设有反冲洗流道控制罩，反冲洗功能段设有反冲洗水通道且位于反冲洗流道控制罩内，过滤及反冲洗子单元与基座间或叠片子单元间设有调节组件，通过调节组件的配合，过滤及反冲洗子单元能相对于叠片子单元轴向移动，过滤及反冲洗子单元顺进水水流方向轴向移动，能封闭进水通道和打开反冲洗水通道；过滤及反冲洗子单元逆进水水流方向轴向移动，能打开进水通道和关闭反冲洗水通道。
  2. 根据权利要求1所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于：所述进水组件包括进水连接件和进水端盖，进水连接件与滤瓶至少轴向固定连接，进水端盖同轴设于进水连接件的内端，所述进水端盖设有若干端盖过水通道，端盖过水通道与进水连接件的内腔连通，反冲洗流道控制罩固定设于进水端盖的内端或与进水端盖一体成型，过滤及反冲洗子单元相对于叠片子单元顺进水水流方向轴向移动，端盖过水通道能与进水通道断开并打开反冲洗水通道，过滤及反冲洗子单元相对于叠片子单元逆进水水流方向轴向移动，端盖过水通道能与进水通道连通并关闭反冲洗水通道。
  3. 根据权利要求1或2所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于，所述调节组件设于反冲洗子单元与基座间，所述调节组件包括弹性复位件，弹性复位件套设于过滤及反冲洗子单元，弹性复位件的两端分别与基座内壁和过滤及反冲洗子单元的端部抵接，过滤及反冲洗子单元的端部两侧存在压力差△P，△P≥0，△P对应的作用力大于弹性复位件的反作用力时，弹性复位件压缩，过滤及反冲洗子单元顺进水水流方向轴向移动；△P对应的作用力小于弹性复位件的反作用力时，弹性复位件复位，过滤及反冲洗子单元逆进水水流方向轴向移动；
    或者，所述调节组件设于反冲洗子单元与叠片子单元间，所述调节组件包括弹性复位件，弹性复位件套设于过滤及反冲洗子单元，过滤及反冲洗子单元设有限位部，弹性 复位件的两端分别与限位部和叠片子单元的内壁抵接，过滤及反冲洗子单元的端部两侧存在压力差△P，△P≥0，△P对应的作用力大于弹性复位件的反作用力时，弹性复位件压缩，过滤及反冲洗子单元顺进水水流方向轴向移动；△P对应的作用力小于弹性复位件的反作用力时，弹性复位件复位，过滤及反冲洗子单元逆进水水流方向轴向移动。
  4. 根据权利要求3所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于，所述过滤及反冲洗子单元包括滤网骨架，所述滤网骨架包括反冲洗骨架段、过滤骨架段和出水端口连接段，反冲洗骨架段固定设有反冲洗滤网，过滤骨架段固定设有过滤网，叠片子单元包括叠片骨架和固定于叠片骨架外的若干叠片，叠片骨架两端分别设有第一端盖和第二端盖，进水通道设于第一端盖，滤网骨架位于第二端盖的一侧设有反冲洗开启盖，第二端盖设有原水过水通道，反冲洗开启盖设有反冲洗排水通道，基座腔通过原水过水通道、反冲洗排水通道与原水腔连通，反冲洗骨架段在靠近第一端盖外侧的部位设有密封部，所述弹性复位件套设于出水端口连接段，弹性复位件的两端分别与基座内壁和反冲洗开启端盖抵接，反冲洗开启端盖的两侧存在压力差△P，过滤及反冲洗子单元相对于叠片子单元顺进水水流方向轴向移动，通过密封部封闭进水通道；过滤及反冲洗子单元相对于叠片子单元逆进水水流方向轴向移动，密封部打开进水通道。
  5. 根据权利要求1或2所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于：所述叠片子单元还包括叠片调节件，叠片骨架设有适配的调节部，通过调节部与叠片调节件的配合，实现叠片的固定及过滤孔径的调节。
  6. 根据权利要求1或2所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于：所述前置过滤器内还设有叠片骨架限位部，叠片骨架设有适配的定位部，通过定位部与叠片骨架限位部抵接配合，叠片骨架在滤瓶内的位置固定，第一端盖与滤瓶间设有密封元件或过盈配合；所述过滤功能段两端与叠片子单元内壁之间滑动密封连接。
  7. 根据权利要求3所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于：所述弹性复位件为环形压缩弹簧。
  8. 根据权利要求1或2所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于，所述进水组件还设有防止水锤的压力缓冲装置。
  9. 根据权利要求8所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于，所述压力缓冲装置包括筒体、设于筒体内的弹性元件以及密封盖，筒体内设有弹性元件抵接部，弹性元件的两端分别与弹性元件抵接部和密封盖内侧抵接，密封盖与筒体 内壁滑动密封；密封盖的外表面与净化水腔连通，在前置过滤器内压力升高时，弹性元件能够被压缩，压力升高解除后，弹性元件能够复位。
  10. 根据权利要求1或2所述的具有反冲洗功能的叠片复合式横向前置过滤器，其特征在于：所述排污端口设有排污阀，所述排污阀为手动排污阀或电动排污阀或者手自一体排污阀。
PCT/CN2023/130443 2022-11-11 2023-11-08 具有反冲洗功能的叠片复合式横向前置过滤器 WO2024099354A1 (zh)

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