CN103239910B - Detachable anti-blockage filter head - Google Patents
Detachable anti-blockage filter head Download PDFInfo
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- CN103239910B CN103239910B CN201310179824.5A CN201310179824A CN103239910B CN 103239910 B CN103239910 B CN 103239910B CN 201310179824 A CN201310179824 A CN 201310179824A CN 103239910 B CN103239910 B CN 103239910B
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Abstract
The invention provides a detachable anti-blockage filter head belonging to the technical field of water treatment and solving the problems that an existing filter head is cleaned troublesomely, the levelness is adjusted troublesomely and the like. The detachable anti-blockage filter head comprises an upper filter cap, a filter base, a filter rod and a lower filter cap, wherein the upper filter cap is fixedly connected with the top end of the filter base, the lower filter cap is fixed at the bottom end of the filter rod, and the filter rod is fixedly connected with the filter base through a clamping structure. The detachable anti-blockage filter head has the advantages of simplicity in adjustment, high adjustment precision and the like.
Description
Technical field
The invention belongs to water-treatment technology field, relate to a kind of anti-blocking filter head, particularly a kind of removable anti-blocking filter head.
Background technology
In water technology, filtering ponds are most important purification structures.Filter a critical process as waterworks, sewage treatment plant, whole system treatment effect is played to the final effect of checking on, its operating condition directly affects the quality of water factory's product water.And the regeneration of filter ability is again the key of filter tank stable and high effective operation.For improving the recovery effects of filter tank filtering layer retaining power, along with the progress of technology adopts in newly-built, the reconstruction filter tank of water factory in recent years: first gas washing, then gas, water combines and washes, finally gas, the water backwashing mode of washing, obtained comparatively satisfied effect.
And the gas in filter tank, water backwashing the most key be to control backwash air inlet between each filter, inflow uniformity.Some filters on existing market, filter block and filter bar are fixed together, and are non-removable, after filter is installed in template, once the phenomenon of stopping up appears in filter cap, the filtrate of template top need to be pushed aside, above template, filter is cleaned, clean trouble, troublesome maintenance.
For example Chinese patent literature data of other filters on existing market discloses a kind of adjustable long-handled filter head [application number: 200920179151.2; Granted publication number: CN201586412U], it comprise have central through hole built-in fitting, be arranged on this built-in fitting top upper filter cap, be arranged on the circular tube shaped filter bar of this built-in fitting bottom and be arranged on the lower filter cap of this circular tube shaped filter bar lower end, circular tube shaped filter bar upper end is provided with one section of external screw thread, the central through hole wall bottom of built-in fitting is provided with the internal thread matching with the external screw thread of circular tube shaped filter bar, and adjustable long-handled filter head also comprises the securing member for fastening circular tube shaped filter bar and built-in fitting.
After the filter of this kind of structure is integrated poured, filter the height of bar by threaded adjusting, make to filter the air admission hole of bar sidepiece and distribution bar hole substantially respectively in sustained height; But the quantity of integrated poured rear filter is generally more, when adjusting, especially pull down on filter pole pair after filter cap cleans, while again filtering the levelness of bar sidepiece air admission hole and distribution bar hole by threaded adjusting, every filter bar all needs to regulate, and regulates trouble, regulates difficulty larger, be difficult to ensure that the air admission hole of every filter bar sidepiece and distribution bar hole are all substantially respectively in sustained height, thereby have influence on the effect of filter tank filtering layer backwash.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, a kind of removable anti-blocking filter head simple, degree of regulation is high that regulates is provided.
Object of the present invention can realize by following technical proposal: a kind of removable anti-blocking filter head, comprise filter cap, filter block, filter bar and lower filter cap, described upper filter cap is connected in filter block top, described lower filter cap is fixed on the bottom of filter bar, it is characterized in that, described filter bar is connected by interface arrangment mutually with filter block.
This filter is linked to be one by integrated poured form, filter bar and filter block are connected by interface arrangment, filter bar and filter block are all produced in batches, so the clamping position of each filter bar and filter block is consistent, after this just ensures that filter bar and filter block clamping are connected, the lower filter cap of air admission hole, distribution bar hole and the filter bar bottom of filter bar sidepiece, substantially respectively in sustained height, regulates simply, and degree of regulation is high.
In the removable anti-blocking filter head of above-mentioned one, described interface arrangment comprises on filter bar upper outside face, having in the card column of equidistant protrusion and filter block lower inside surface to have L-shaped draw-in groove one, described card column and draw-in groove one match, and described card column is connected in draw-in groove one by friction tight form.Filter bar is embedded in draw-in groove one card column by the form of inserting, rotating to an angle, card column is tightly fixed in draw-in groove one, good stability when filter bar and filter block are connected, ensure that card column is embedded on the same position of draw-in groove one at every turn, after filtering bar and pulling down at every turn, again fill upper filtering rod, each air admission hole of filter bar sidepiece and distribution bar hole are all the time substantially respectively in sustained height.
In the removable anti-blocking filter head of above-mentioned one, described draw-in groove one comprises the sliding tray one axial along filter block and along filter block buckling groove one radially, the port of described sliding tray one is enlarging shape, the end of described buckling groove one has cylindrical hole clipping one, and the slightly larger in diameter of described hole clipping one is in the diameter of card column.The port of sliding tray one is enlarging shape, facilitates card column to be inserted in draw-in groove one, and buckling groove one is consistent or smaller with the width of sliding tray one and the diameter of card column, and the slightly larger in diameter of hole clipping one facilitates card column to be connected in draw-in groove one.
In the removable anti-blocking filter head of above-mentioned one, on the lateral surface of described filter masthead portion, there is the inclined-plane tilting towards the longitudinal center line of filter bar, on described inclined-plane, there is 1-3 road snap ring, on the medial surface of described filter block, there is the abutment face one matching with inclined-plane.Card column embeds draw-in groove for the moment, snap ring is resisted against on abutment face one, between filter bar and filter block, form sealing, and due to extruding, snap ring can produce certain reaction force, now card column is positioned at hole clipping one, because the slightly larger in diameter of hole clipping one is in the diameter of card column, hole clipping one plays certain cushioning effect, makes again card column be close in hole clipping one, be difficult for coming off from draw-in groove one, the firm degree that filter bar connects is high.
As another kind of situation, in the removable anti-blocking filter head of above-mentioned one, described interface arrangment comprises in card column, filter pole socket and the filter pole socket lower inside surface on filter bar upper outside face with equidistant protrusion having L-shaped draw-in groove two, described filter pole socket is connected in filter block by screw thread, described card column and draw-in groove two match, and described card column is connected in draw-in groove two by friction tight form.The existence of filter pole socket, can regulate the position of filtering bar by screw thread rotation, regulates the precision of filter bar levelness higher, and after having adjusted, filter pole socket just no longer moves, and the air admission hole of guarantee filter bar sidepiece and distribution bar hole are substantially respectively in sustained height.
In the removable anti-blocking filter head of above-mentioned one, described interface arrangment also comprises locking nut, and described locking nut is located in filter block, and is connected mutually by screw thread and the top of filter pole socket.The existence of locking nut, prevents from filtering bar and occurs to become flexible in the time of operation, and the firm degree of filter bar is high, good stability.
In the removable anti-blocking filter head of above-mentioned one, described draw-in groove two comprises the sliding tray two axial along filter pole socket and edge filter pole socket buckling groove two radially, the port of described sliding tray two is enlarging shape, the end of described buckling groove two has cylindrical hole clipping two, and the slightly larger in diameter of described hole clipping two is in the diameter of card column.The port of sliding tray two is enlarging shape, facilitates card column to be inserted in draw-in groove two, and buckling groove two is consistent or smaller with the width of sliding tray two and the diameter of card column, and the slightly larger in diameter of hole clipping two facilitates card column to be connected in draw-in groove two.
In the removable anti-blocking filter head of above-mentioned one, on the lateral surface of described filter masthead portion, there is the inclined-plane tilting towards the longitudinal center line of filter bar, on described inclined-plane, there is 1-3 road snap ring, on the medial surface of described filter pole socket, there is the abutment face two matching with inclined-plane.When card column embeds draw-in groove two, snap ring is resisted against on abutment face two, between filter bar and filter pole socket, form sealing, and due to extruding, snap ring can produce certain reaction force, now card column is embedded in hole clipping two, because the slightly larger in diameter of hole clipping two is in the diameter of card column, hole clipping two plays certain cushioning effect, makes again card column be close in hole clipping two, card column is difficult for coming off from two kinds of draw-in grooves, and firmly degree is high.
In the removable anti-blocking filter head of above-mentioned one, on the lateral surface of described filter bar, there is annular gear edge.Annular gear is along the edge that is resisted against filter block or filter pole socket, and the firm degree of installation that makes to filter bar is high, and plays certain sealing function.
In the removable anti-blocking filter head of above-mentioned one, on the lateral surface of described filter block, there are convex clip pin and several annular seal rings.The quantity of convex clip pin is two, for inserting template, plays clamping template fixation, ensures that filter block is in same level, and annular seal ring plays certain sealing function, makes the firm degree of filter when integrated poured high simultaneously.
Compared with prior art, the removable anti-blocking filter head of one provided by the invention has the following advantages:
1, the filter bar of this removable anti-blocking filter head can be pulled down, under the prerequisite of filtrate above unclear removing template, can be easily below template on filter cap, filter block etc. clean, easy to clean.
2, this removable anti-blocking filter head is by the mode of card column and the clamping of draw-in groove phase, making to filter bar is connected mutually with filter pole socket or filter block, all be connected to same position at every turn, be without again regulating after clamping, the air admission hole of filter bar sidepiece and distribution bar hole are naturally substantially respectively in sustained height, and levelness is high, regulate simple, degree of regulation is high, and filter back washing is effective.
3, the top of this removable anti-blocking filter head filter bar has snap ring, and there is the inclined-plane and the abutment face that match between the top of filter bar and filter block or filter pole socket, snap ring is squeezed and produces sealing, and produce certain reaction force, make in card column clamping and hole clipping, card column is difficult for skidding off, and the firm degree that filter bar connects is high, and levelness degree of regulation is high.
Brief description of the drawings
Fig. 1 is the overall structure cutaway view of this removable anti-blocking filter head embodiment mono-.
Fig. 2 is the overall structure cutaway view of this removable anti-blocking filter head embodiment bis-.。
Fig. 3 is the enlarged drawing in this removable anti-blocking filter head Figure 1A region.
Fig. 4 is that this removable anti-blocking filter head is filtered the front view of masthead portion.
Fig. 5 is the structural representation of this removable anti-blocking filter head filter block.
In figure, 1, upper filter cap; 2, filter block; 2a, draw-in groove one; 2a1, sliding tray one; 2a2, buckling groove one; 2a3, hole clipping one; 2b, abutment face one; 3, filter bar; 3a, card column; 3b, inclined-plane; 3c, snap ring; 4, lower filter cap; 5, filter pole socket; 5a, draw-in groove two; 5a1, sliding tray two; 5a2, buckling groove two; 5a3, hole clipping two; 5b, abutment face two; 6, locking nut; 7, annular gear edge; 8, convex clip pin; 9, annular seal ring; 10, air admission hole; 11, distribution bar hole.
Detailed description of the invention
Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
Embodiment mono-
As shown in Figure 1, this removable anti-blocking filter head comprises filter cap 1, filter block 2, filter bar 3, lower filter cap 4 and interface arrangment.
Upper filter cap 1 is connected in the top of filter block 2, and as shown in Figure 5, filter block 2 is cylindric, the top end of filter block 2 has pawl, this kind of structure, and upper filter cap 1 is installed firmly, on the lateral surface of filter block 2, there are two annular seal rings 9, also there is a pair of convex clip pin 8, for inserting template, in the middle of the top of convex clip pin 8, there is groove, make convex clip pin 8 there is certain amount of elastic deformation, the lower outside of convex clip pin 8 is skewed, facilitates the clamping of filter block and template, and the firm degree of clamping is high.
Filter bar 3 is long straight-tube shape, and sidepiece axially has three air admission holes 10 and two distribution bar holes 11 along it, and air admission hole 10 and distribution bar hole 11 are located along the same line.As shown in Figure 4, in filter bar 3 top outside, have the inclined-plane 3b tilting towards the longitudinal center line of filter bar 3, have twice snap ring 3c on inclined-plane 3b, in actual production, the quantity of snap ring 3c is set according to actual needs.The bottom of filter bar has external screw thread, and be threaded connection and be fixed with lower filter cap 4, upper filter cap 1 and the equal filtration of lower filter cap 4, and the connecting end surface place of upper filter cap 1 and lower filter cap 4 all has locking annular tooth, avoid filter tank in the time of operation, upper filter cap 1 and lower filter cap 4 get loose, and the firm degree that upper filter cap 1 and lower filter cap 4 are installed is high.
Interface arrangment comprises card column 3a, filter pole socket 5, locking nut 6 and draw-in groove two 5a.On filter bar 3 upper outside faces, there is the card column 3a of equidistant protrusion, in the present embodiment, the quantity of card column 3a is two, is symmetrical set, in actual production, the quantity of card column 3a is set as required, and card column 3a is positioned at the below of snap ring 3c and is positioned at annular and keeps off the top along 7.Filter pole socket 5 is cylindric, and outside has external screw thread, is connected in the inside of filter block 2 by screw thread, and top and the locking nut 6 of filter pole socket 5 are connected, and locking nut 6 makes to filter pole socket 5 and installs firmly, can not rock.In the lower inside surface of filter pole socket 5, there are L-shaped draw-in groove two 5a, draw-in groove two 5a comprise sliding tray two 5a1s axial along filter pole socket 5 and edge filter pole socket 5 buckling groove two 5a2 radially, and hole clipping two 5a3, hole clipping two 5a3 are positioned at the end of buckling groove two 5a2, the width between two side up and down of sliding tray two 5a1, buckling groove two 5a2 equals the diameter of card column 3a, the slightly larger in diameter of hole clipping two 5a3 is in the diameter of card column 3a, and the port of sliding tray two 5a1 is enlarging shape, is conducive to the clamping of card column 3a.On the medial surface of filter pole socket 5, also have contact-making surface two, contact-making surface two matches with inclined-plane 3b.
When installation, by screw thread rotation, filter pole socket 5 and locking nut 6 are connected mutually, filter pole socket 5 is connected in filter block 2, upper filter cap 1 is connected with the upper end of filter block 2, lower filter cap 4 is connected with the bottom screw thread of filter bar 3, the card column 3a of logical filtering rod 3 aims at the enlarging place insertion of sliding tray two 5a1 again, rotate again, now snap ring 3c is resisted against on abutment face two 5b, owing to being subject to the extruding of abutment face two 5b and inclined-plane 3b, gap between snap ring 3c sealing filter bar 3 and filter pole socket 5, snap ring 3c is owing to being subject to reaction force, making to filter bar 3 moves down slightly, card column 3a embeds in hole clipping two 5a3, making to filter bar 3 is connected with the clamping of filter pole socket, card column 3a difficult drop-off, the firm degree that filter bar 3 is connected is high.
Because filter bar 3 and filter pole socket 5 grades are all produced in batches, be that card column 3a and draw-in groove two 5a place filter bars 3 are basically identical with the position on filter pole socket 5, each clamping, without adjusting, ensures that three air admission holes 10 and two distribution bar holes 11 are substantially respectively in same level.If levelness has deviation, can filter pole socket 5 by rotation and regulate.
The filter of this kind of structure, regulates simply, can ensure all the time that air admission hole 10 and distribution bar hole 11 are substantially respectively in same level, and degree of regulation is high, and filter back washing is effective,
Embodiment bis-
As shown in Figure 2, it is basic identical that the present embodiment is colluded structure and the principle of embodiment mono-, different places with the present embodiment in, do not exist and screw nut and filter pole socket 5, on the medial surface of filter block 2 bottoms, there is L-shaped draw-in groove one 2a, draw-in groove one 2a comprises sliding tray one 2a1 axial along filter block 2 and along filter block 2 buckling groove one 2a2 radially, and hole clipping one 2a3, the structure of draw-in groove one 2a is consistent with the structure of draw-in groove two 5a, on the medial surface of filter block 2, there is abutment face one 2b matching with filter bar 3 inclined-plane 3b, the card column 3a of filter bar 3 snaps fit onto in draw-in groove one 2a of filter block 2, making to filter bar 3 is connected mutually with filter block 2, simple in structure.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used herein upper filter cap 1, filter block 2, draw-in groove one 2a, sliding tray one 2a1, buckling groove one 2a2, hole clipping one 2a3, abutment face one 2b, filter bar 3, card column 3a, inclined-plane 3b, snap ring 3c, lower filter cap 4, filter pole socket 5, draw-in groove two 5a, sliding tray two 5a1, buckling groove two 5a2, hole clipping two 5a3, abutment face two 5b, locking nut 6, annular gear along 7, the term such as convex clip pin 8, annular seal ring 9, air admission hole 10, distribution bar hole 11, do not get rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (11)
1. a removable anti-blocking filter head, comprise filter cap (1), filter block (2), filter bar (3) and lower filter cap (4), described upper filter cap (1) is connected in filter block (2) top, described lower filter cap (4) is fixed on the bottom of filter bar (3), it is characterized in that, described filter bar (3) is connected by interface arrangment mutually with filter block (2), described interface arrangment comprises the card column (3a) on filter bar (3) upper outside face with equidistant protrusion, in filter pole socket (5) and filter pole socket (5) lower inside surface, there is L-shaped draw-in groove two (5a), described filter pole socket (5) is connected in filter block (2) by screw thread, described card column (3a) and draw-in groove two (5a) match, described card column (3a) is connected in draw-in groove two (5a) by friction tight form.
2. the removable anti-blocking filter head of one according to claim 1, it is characterized in that, described interface arrangment also comprises locking nut (6), described locking nut (6) is located in filter block (2), and is connected mutually by screw thread and the top of filter pole socket (5).
3. the removable anti-blocking filter head of one according to claim 1, it is characterized in that, described draw-in groove two (5a) comprises the sliding tray two (5a1) axial along filter pole socket (5) and edge filter pole socket (5) buckling groove two (5a2) radially, the port of described sliding tray two (5a1) is enlarging shape, the end of described buckling groove two (5a2) has cylindrical hole clipping two (5a3), and the slightly larger in diameter of described hole clipping two (5a3) is in the diameter of card column (3a).
4. according to the removable anti-blocking filter head of one described in claim 1 or 2 or 3, it is characterized in that, on the lateral surface at described filter bar (3) top, there is the inclined-plane (3b) tilting towards the longitudinal center line of filter bar (3), on described inclined-plane (3b), there is 1-3 road snap ring (3c), on the medial surface of described filter pole socket (5), there is the abutment face two (5b) matching with inclined-plane (3b).
5. according to the removable anti-blocking filter head of one described in claim 1 or 2 or 3, it is characterized in that on the lateral surface of described filter bar (3), thering is annular gear along (7).
6. according to the removable anti-blocking filter head of one described in claim 1 or 2 or 3, it is characterized in that on the lateral surface of described filter block (2), thering is convex clip pin (8) and several annular seal rings (9).
7. a removable anti-blocking filter head, comprise filter cap (1), filter block (2), filter bar (3) and lower filter cap (4), described upper filter cap (1) is connected in filter block (2) top, described lower filter cap (4) is fixed on the bottom of filter bar (3), it is characterized in that, described filter bar (3) is connected by interface arrangment mutually with filter block (2), described interface arrangment comprises on filter bar (3) upper outside face, having in the card column (3a) of equidistant protrusion and filter block (2) lower inside surface to have L-shaped draw-in groove one (2a), described card column (3a) and draw-in groove one (2a) match, described card column (3a) is connected in draw-in groove one (2a) by friction tight form.
8. the removable anti-blocking filter head of one according to claim 7, it is characterized in that, described draw-in groove one (2a) comprises the sliding tray one (2a1) axial along filter block (2) and along filter block (2) buckling groove one (2a2) radially, the port of described sliding tray one (2a1) is enlarging shape, the end of described buckling groove one (2a2) has cylindrical hole clipping one (2a3), and the slightly larger in diameter of described hole clipping one (2a3) is in the diameter of card column (3a).
9. the removable anti-blocking filter head of one according to claim 7, it is characterized in that, on the lateral surface at described filter bar (3) top, there is the inclined-plane (3b) tilting towards the longitudinal center line of filter bar (3), on described inclined-plane (3b), there is 1-3 road snap ring (3c), on the medial surface of described filter block (2), there is the abutment face one (2b) matching with inclined-plane (3b).
10. according to the removable anti-blocking filter head of one described in claim 7 or 8 or 9, it is characterized in that on the lateral surface of described filter bar (3), thering is annular gear along (7).
11. according to the removable anti-blocking filter head of one described in claim 7 or 8 or 9, it is characterized in that, has convex clip pin (8) and several annular seal rings (9) on the lateral surface of described filter block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179824.5A CN103239910B (en) | 2013-05-14 | 2013-05-14 | Detachable anti-blockage filter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179824.5A CN103239910B (en) | 2013-05-14 | 2013-05-14 | Detachable anti-blockage filter head |
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| Publication Number | Publication Date |
|---|---|
| CN103239910A CN103239910A (en) | 2013-08-14 |
| CN103239910B true CN103239910B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310179824.5A Active CN103239910B (en) | 2013-05-14 | 2013-05-14 | Detachable anti-blockage filter head |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201810054D0 (en) * | 2018-06-19 | 2018-08-08 | Madison Filter 981 Ltd | Modular filter element |
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|---|---|---|---|---|
| CN2799540Y (en) * | 2005-03-15 | 2006-07-26 | 江西省东润环保科技发展有限公司 | Bidirectional filter of upward flow aeration biological filtering tank |
| CN201254490Y (en) * | 2008-07-11 | 2009-06-10 | 广州市金龙峰环保设备工程有限公司 | Upward assembling anti-blocking filter head |
| CN102423565A (en) * | 2011-08-29 | 2012-04-25 | 黄欢 | Adjustable filter head of cast-in-place filter plate |
| CN203235303U (en) * | 2013-05-14 | 2013-10-16 | 台州中昌水处理设备有限公司 | Detachable anti-blocking filter head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7556622B2 (en) * | 2005-05-18 | 2009-07-07 | Suros Surgical Systems, Inc. | Selectively openable tissue filter |
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2013
- 2013-05-14 CN CN201310179824.5A patent/CN103239910B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2799540Y (en) * | 2005-03-15 | 2006-07-26 | 江西省东润环保科技发展有限公司 | Bidirectional filter of upward flow aeration biological filtering tank |
| CN201254490Y (en) * | 2008-07-11 | 2009-06-10 | 广州市金龙峰环保设备工程有限公司 | Upward assembling anti-blocking filter head |
| CN102423565A (en) * | 2011-08-29 | 2012-04-25 | 黄欢 | Adjustable filter head of cast-in-place filter plate |
| CN203235303U (en) * | 2013-05-14 | 2013-10-16 | 台州中昌水处理设备有限公司 | Detachable anti-blocking filter head |
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| CN103239910A (en) | 2013-08-14 |
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Address after: 317600 city street, Yucheng street, Yuhuan, Zhejiang Province, No. 121 Patentee after: Taizhou Zhongchang water treatment equipment Limited by Share Ltd Address before: 317600 Chengguan Road No. 121, Zhuhai port town, Yuhuan County, Taizhou, Zhejiang Patentee before: Taizhou Zhongchang Water Treatment Equipment Co., Ltd. |
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Effective date of registration: 20190202 Address after: 310000 No. 502 Xingzhong Road, Linping Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Zhongchang Water Treatment Technology Co., Ltd. Address before: 317600 No. 121 Yucheng Street Middle Road, Yuhuan City, Zhejiang Province Patentee before: Taizhou Zhongchang water treatment equipment Limited by Share Ltd |