CN1765466A - Water treatment equipment - Google Patents
Water treatment equipment Download PDFInfo
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- CN1765466A CN1765466A CN 200510044411 CN200510044411A CN1765466A CN 1765466 A CN1765466 A CN 1765466A CN 200510044411 CN200510044411 CN 200510044411 CN 200510044411 A CN200510044411 A CN 200510044411A CN 1765466 A CN1765466 A CN 1765466A
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Abstract
The invention provides a water treatment device, comprising column filter unit groups and a control device for controlling the water flow distribution. Wherein, each column filter unit group comprises two column filter units; said control device comprise the front control valve and a back control valve, while the control valve comprises a valve casing and a valve core; the valve core is arranged inside the valve casing; the valve casing of each control valve has two opposite water inlet-outlet holes connected to the upper and lower channels of column filter; the casing of upper valve has a main water inlet while the lower valve has a main water outlet; the lower bottom cover of upper valve has a soil exhaust hole while the lower bottom cover of lower valve has a reverse washing hole; a water chamber connected to the main water inlet is mounted inside the upper valve casing of upper valve core; and the a water chamber connected to the main water outlet is mounted inside the upper valve casing of lower valve core. The inventive water treatment device can be operated in the conditions of feeding water, reverse washing and positive washing, while it can feed water when in reverse or positive washing to improve the water feeding efficiency. And since the invention has the added positive washing process, the water feeding quality is improved.
Description
Technical field
The present invention relates to a kind of water treatment facilities.
Background technology
Existing pillar water treatment facilities as mechanical type filter, oxygen-eliminating device etc., have duties such as the water of producing and backwash in the course of the work, and the conversion between the state is finished by control valve.The patent No. is 00215874.4 utility model patent, at the water treatment facilities described in the specification of its announcement, though also have duties such as the water of producing and backwash in a work period, producing water and backwash can not carry out simultaneously, just can not produce water under the duty of backwash, in that just produce under the duty of water can not backwash, product water efficient is reduced greatly, and just do not washing technology, even therefore through after the backwash, the quality of producing water neither be very high, and water-quality ratio is relatively poor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of water treatment facilities, and this water treatment facilities not only have and produce water, backwash, just duty such as wash, and is just washing or during backwash, still can produce water, improve product water efficient, just washed technology owing to having increased simultaneously, improved the product water quality.
The invention provides a kind of water treatment facilities, it has comprised pillar filter unit group, and the control device of control current distribution, each pillar filter unit group comprises two pillar filters, described control device comprises preceding control valve (deserving to be called valve down) and back control valve (calling down valve in the following text), control valve comprises valve casing and spool, and spool is arranged on valve casing inside; Having on the valve casing of described each control valve can that connect, relative two paddle hole with the last lower pipeline of pillar filter, has main inlet opening on the valve casing of last valve, has main apopore on the following valve valve casing; Have mudhole on the lower bottom cover of last valve valve casing, have the backwash hole on the lower bottom cover of following valve valve casing; In the valve casing on last valve core top the hydroecium that is communicated with main inlet opening is arranged, the hydroecium that is communicated with primary flow pipe is arranged in the valve casing on the top of following valve core; Spool adopts following structure:
1) going up the valve core profile is cylindrical or inverted truncated cone-shaped, has 6 chamfered grooves on spool, and wherein 5 is trapezoidal chamfered groove, and 1 is trough with straight angle; The upper shed of each trapezoidal chamfered groove communicates with hydroecium, the side opening that is positioned on the spool sidewall selectively communicates with corresponding paddle hole on the valve casing, the under shed of 1 trough with straight angle communicates with mudhole on the valve casing lower bottom cover, and the side opening that is positioned on the spool sidewall selectively communicates with corresponding paddle hole on the valve casing.
2) the valve core profile is cylindrical or inverted truncated cone-shaped down, has 6 chamfered grooves on spool, and wherein adjacent 4 is trapezoidal chamfered groove, and 2 is trough with straight angle in addition; The upper shed of each trapezoidal chamfered groove communicates with hydroecium, the side opening that is positioned on the sidewall selectively communicates with corresponding paddle hole on the valve casing, the under shed of each trough with straight angle communicates with backwash hole on the valve casing lower bottom cover, and the side opening that is positioned on the sidewall selectively communicates with corresponding paddle hole on the valve casing.
Above-mentioned 6 chamfered grooves of valve core of going up are along circumferentially being evenly distributed on the spool.
6 chamfered grooves of above-mentioned valve core down are along circumferentially being evenly distributed on the spool.
The cross section of above-mentioned trapezoidal chamfered groove is approximately trapezoidal.
The longitudinal section of above-mentioned trough with straight angle is a square.
The above-mentioned mudhole of going up valve is communicated with blow-off pipe, and the backwash hole of following valve is communicated with the backwash pipe.
On above-mentioned backwash pipe, be furnished with 1 threeway, be furnished with 1 threeway on the blow-off pipe, be communicated with by tube connector between two threeways, be furnished with magnetic valve on the tube connector.
Water treatment facilities of the present invention, owing to adopt above-mentioned control valve, when carrying out water treatment, equipment can have continuous product water, backwash and technology such as just wash, solve former water treatment facilities and can not produce water continuously, produced the inefficient problem of water, just washed technology owing to having increased simultaneously, impurity in the pillar filter is significantly reduced, improved the product water quality.
Description of drawings
Accompanying drawing 2 is the structural representation of A-A section among Fig. 1;
Accompanying drawing 3 is a valve arrangement schematic diagram down of the present invention;
Accompanying drawing 4 is the structural representation of B-B section among Fig. 3;
Flow direction schematic diagram when accompanying drawing 5 is positioned at station 1 for control valve spool of the present invention;
Flow direction schematic diagram when accompanying drawing 6 is positioned at station 2 for control valve spool of the present invention;
Flow direction schematic diagram when accompanying drawing 7 is positioned at station 3 for control valve spool of the present invention;
Flow direction schematic diagram when accompanying drawing 8 is positioned at station 4 for control valve spool of the present invention;
Flow direction schematic diagram when accompanying drawing 9 is positioned at station 5 for control valve spool of the present invention;
Flow direction schematic diagram when accompanying drawing 10 is positioned at station 6 for control valve spool of the present invention;
Accompanying drawing 11 is the structural representation of control valve of the present invention;
The specific embodiment
Water treatment facilities of the present invention, comprise the pillar filter 2 and 2 that carries out water treatment ', and be used to control the control device that current distribute; Control device comprise valve 1 and following valve 1 '; Last valve 1 is made up of valve casing 11 and spool 12, shown in accompanying drawing 1,2, the bottom of last valve valve casing 11 have respectively with pillar filter 2 and 2 ' upper pipeline be communicated with, relative two paddle holes 111 and 112, as shown in Figure 5, inverted truncated cone-shaped spool 12 is arranged on the inner bottom part of valve casing 11, in the valve casing 11 on spool 12 tops, hydroecium 3 is arranged, on valve casing 11, have the main inlet opening 113 that is communicated with hydroecium 3, have mudhole 114 on valve casing 11 lower bottom covers, mudhole 114 is communicated with blow-off pipe 1141; Spool 12 upper edges circumferentially have 6 chamfered groove A, B, C, D, E, F uniformly, wherein 5 chamfered groove A, B, C, D, E are trapezoidal chamfered groove, the upper shed of each trapezoidal chamfered groove is communicated with hydroecium 3, the side opening that is positioned on the spool sidewall selectively is communicated with hole 111 or 112 on the valve casing 11, another chamfered groove F is a trough with straight angle, the under shed of trough with straight angle F is communicated with mudhole 114 on valve casing 11 lower bottom covers, and the side opening that is positioned on the spool sidewall selectively is communicated with hole 111 or 112 on the valve casing 11; The upper shed that trapezoidal chamfered groove communicates with hydroecium is approximately trapezoidal, so be referred to as trapezoidal chamfered groove, it is rectangular that trough with straight angle is positioned at the tank of spool, so be referred to as trough with straight angle, place, axle center at spool 12 upper surfaces has keyway 121, and corresponding keyway 121 places have through hole 115 on the upper top cover of valve casing 11, are provided with power transmission shaft in the through hole 115, the end of power transmission shaft is provided with key, and power transmission shaft makes spool 12 connect with motor by keyway and cooperating of key.
Following valve 1 ' by valve casing 11 ' and spool 12 ' form, shown in accompanying drawing 3,4, following valve valve casing 11 ' the bottom have respectively with pillar filter 2 and 2 ' lower pipeline two paddle holes 111 that be communicated with, relative ' and 112 ', as shown in Figure 5, inverted truncated cone-shaped spool 12 ' be arranged on valve casing 11 ' inner bottom part, the valve casing 11 on spool 12 ' top ' in have hydroecium 3 ', valve casing 11 ' on have with the main apopore 113 of hydroecium 3 ' be communicated with ', have on valve casing 11 ' lower bottom cover backwash hole 114 ', backwash hole 114 ' with backwash pipe 1141 ' be communicated with; Spool 12 ' upper edge circumferentially has 6 chamfered groove a, b, c, d, e, f uniformly, wherein adjacent 4 chamfered groove a, b, c, d are trapezoidal chamfered groove, the upper shed of each trapezoidal chamfered groove and hydroecium 3 ' be communicated with, be positioned on the spool sidewall side opening selectively with valve casing 11 ' on paddle hole 111 ' or 112 ' be communicated with, another chamfered groove e, f are trough with straight angle, backwash hole 114 on the under shed of trough with straight angle e, f and the valve casing 11 ' lower bottom cover ' be communicated with, be positioned on the spool sidewall side opening selectively with valve casing 11 ' on paddle hole 111 ' or 112 ' be communicated with; The upper shed that trapezoidal chamfered groove communicates with hydroecium is approximately trapezoidal, so be referred to as trapezoidal chamfered groove, it is rectangular that trough with straight angle is positioned at the tank of spool, so be referred to as trough with straight angle, have at place, the axle center of spool 12 ' upper surface keyway 121 ', valve casing 11 ' upper top cover on corresponding keyway 121 ' locate to have through hole 115 ', through hole 115 ' in be provided with power transmission shaft, the end of power transmission shaft is provided with key, and power transmission shaft is by making keyway and cooperating of key spool 12 ' connect with motor.
Backwash pipe 1141 ' on be furnished with magnetic valve 4 ', magnetic valve 4 ' and backwash hole 114 ' between backwash pipe 1141 ' on be provided with 1 threeway; Be provided with 1 threeway on blow-off pipe 1141, connect by tube connector 5 between two threeways, tube connector 5 is provided with magnetic valve 4.
In conjunction with the accompanying drawings each stations of water treatment facilities of the present invention is described further again below:
Produce water-product water conservancy project position: as shown in Figure 5, when each perforate of last valve core and following valve core is in as shown in Figure 5 position, pending water enters in the hydroecium 3 of valve from main inlet opening 113, this moment hydroecium 3 with the trapezoidal chamfered groove A of last valve core, B, C, D, the upper shed of E is communicated with, but because of chamfered groove B, C, the side opening of E is blocked by the valve casing inwall, so a current part flows into spool from the upper shed of chamfered groove A, side opening by chamfered groove A enters in the pillar filter 2 through paddle hole 111 then, after current are handled in the pillar filter, through following valve 1 ' paddle hole 111 ' and following valve core 12 ' go up chamfered groove a enter hydroecium 3 ' in, process main apopore 113 ' discharge then; Another part current in the hydroecium 3 flow in the spool 12 from the upper shed of chamfered groove D hole, then the side opening by chamfered groove D through paddle hole 112 enter pillar filter 2 ' in, after current are handled in the pillar filter, through following valve 1 ' paddle hole 112 ' and following valve core 12 ' on chamfered groove d enter hydroecium 3 ' in, then through main apopore 113 ' discharge.This moment magnetic valve 4 and 4 ' all be in closed condition.Last valve core and following valve core when this station, pillar filter 2 and 2 ' all be in product water state.
Backwash-product water conservancy project position: as shown in Figure 6, last valve core and following valve core all are rotated counterclockwise 60 ° from above-mentioned product water-product water conservancy project bit position by motor drives, valve core 12 and following valve core 12 on this moment ' each perforate be in as shown in Figure 6 position, pending water enters in the hydroecium 3 of valve from main inlet opening 113, this moment hydroecium 3 with the chamfered groove A of last valve core, B, C, D, the upper shed in E hole is communicated with, but because of chamfered groove A, B, E, the side opening of D is blocked by the valve casing inwall, have only the side opening of chamfered groove C to be connected with paddle hole 112, so current can only flow into spool from the upper shed of chamfered groove C, from the side opening of chamfered groove C flow out after paddle hole 112 flow into pillar filters 2 ' in, current pillar filter 2 ' in handle, this is side opening and the paddle hole 112 of the chamfered groove c on the valve core ' be communicated with at present, the paddle hole 112 so after treatment current are flowed through ' and chamfered groove c enter hydroecium 3 ' in, again by main apopore 113 ' with the water discharge, the function of water is produced in realization; Meanwhile, magnetic valve 4 ' open, magnetic valve 4 cuts out, backwash water from backwash pipe 1141 ' inflow backwash hole 114 ' in, this is under shed and the backwash hole 114 of the chamfered groove f on the valve core ' be communicated with at present, the side opening in f hole and paddle hole 111 ' be connected, so current are in chamfered groove f flows into pillar filter 2, araeosystyle filter 2 carries out backwash, and after the backwash, current flow in the paddle hole 111 from pillar filter 2, the side opening of valve core chamfered groove F is communicated with hole 1111 on this moment, the under shed of chamfered groove F is connected with mudhole 114, so current are flowed through mudhole 114 after blow-off pipe 1141 is discharged from chamfered groove F, reaches the purpose of backwash.Last valve core and following valve core when this station, pillar filter 2 places and backwash state, pillar filter 2 ' be in product water state.
Just wash-produce the water conservancy project position: as shown in Figure 7, last valve core and following valve core all are rotated counterclockwise 60 ° from above-mentioned backwash-product water conservancy project bit position by motor drives, on this moment on the valve core upper shed of chamfered groove E and chamfered groove B be communicated with hydroecium 3, the side opening of chamfered groove E is communicated with paddle hole 111, the side opening of chamfered groove B is communicated with paddle hole 112, the side opening sealing of all the other chamfered grooves; The side opening of chamfered groove b and paddle hole 112 on the following valve core ' be communicated with, the upper shed of chamfered groove b and hydroecium 3 ' be communicated with, the side opening of chamfered groove e and paddle hole 111 ' be communicated with, the under shed of chamfered groove e and backwash hole 114 ' be communicated with all the other chamfered grooves sealings; After current enter hydroecium 3 from main water inlet tube 113, part water is flowed through by the chamfered groove E on the last valve core and is entered in the pillar filter 2 behind the paddle hole 111, araeosystyle filter 2 is just being washed, arrival paddle hole 111 after current after just washing flow out from pillar filter 2 ', then by the under shed of chamfered groove e flow through backwash hole 114 ' after enter in the tube connector 5, this moment magnetic valve 4 ' close, magnetic valve 4 is open-minded, so current flow into blow-off pipe 1141 by tube connector 5 and discharge, and finish the function that araeosystyle filter 2 is just being washed; The chamfered groove B of another part water in the hydroecium 3 by last valve core flow through enter behind the paddle hole 112 pillar filter 2 ' in, handle the back current from pillar filter 2 ' outflow, flow through paddle hole 112 ' and the chamfered groove b of following valve core enter down valve hydroecium 3 ' in, by main apopore 113 ' discharge, realize producing the function of water then.When last valve core and following valve core were in this station, pillar filter 2 was in the state of just washing, pillar filter 2 ' be in product water state.
Produce water-product water conservancy project position: as shown in Figure 8, last valve core and following valve core are just washed-are produced the water conservancy project bit position and all be rotated counterclockwise 60 ° by motor drives from above-mentioned, on this moment on the valve core upper shed of chamfered groove A and chamfered groove D be communicated with hydroecium 3, the side opening of chamfered groove A is communicated with paddle hole 112, the side opening of chamfered groove D is communicated with paddle hole 111, the side opening sealing of all the other chamfered grooves; The upper shed of following valve core chamfered groove a and chamfered groove d and hydroecium 3 ' be communicated with, the side opening of chamfered groove a and paddle hole 112 ' be communicated with, the side opening of chamfered groove d and paddle hole 111 ' be communicated with the side opening sealing of all the other chamfered grooves; Current enter in the hydroecium 3 from main water inlet tube 113, part water along the chamfered groove A on the last valve core flow through paddle hole 112 on the valve casing enter pillar filter 2 ' in, flow to down after handling paddle hole 112 on the valve valve casing ', the hydroecium 3 of valve under chamfered groove a under the warp on the valve core flows into ' in, then by main apopore 113 ' discharge, realize pillar filter 2 ' produce the function of water: another part water of going up in the valve hydroecium 3 enters in the pillar filter 2 after the chamfered groove D on the last valve core flows through paddle hole 111 on the valve casing, after current are handled in pillar filter 2, flow to down paddle hole 111 on the valve valve casing ', the hydroecium 3 of valve under the chamfered groove d of valve core flows under the process again ' in, by primary flow pipe 113 ' discharge, realize the function that pillar filter 2 produces water then.When last valve core and following valve core are in this station, pillar filter 2 and 2 ' all be in product water state.
Produce water-backwash station: as shown in Figure 9, last valve core and following valve core all are rotated counterclockwise 60 ° from accompanying drawing 8 described product water-product water conservancy project bit positions by motor drives, on this moment on the valve core side opening of chamfered groove C be communicated with paddle hole 111, the side opening of chamfered groove F is communicated with paddle hole 112, the side opening sealing of all the other chamfered grooves, the upper shed of chamfered groove C communicates with hydroecium 3, and the under shed of chamfered groove F communicates with mudhole 114; The side opening of chamfered groove f and paddle hole 112 on the following valve core ' be communicated with, the side opening of chamfered groove c and paddle hole 111 ' communicate, the sealing of the side opening of all the other chamfered grooves, the under shed of chamfered groove f and backwash hole 114 ' communicate, the upper shed of chamfered groove c and following valve hydroecium 3 ' be communicated with; Current enter in the hydroecium 3 from main inlet opening 11, can only enter in the pillar filter 2 by the chamfered groove C paddle hole 111 of flowing through, after treatment from pillar filter 2 flow to down paddle hole 111 on the valve valve casing ', then through the chamfered groove c on the following valve core flow into hydroecium 3 ' in, by primary flow pipe 113 ' discharge, realize the function that pillar filter 2 produces water again; Meanwhile, magnetic valve 4 ' open, magnetic valve 4 is in closed condition, backwash water from backwash pipe 1141 ' enter backwash hole 114 ', then the paddle hole 112 of the chamfered groove f by following valve core on valve casing ' enter pillar filter 2 ' in, araeosystyle filter 2 ' carry out backwash, after the backwash, current are from pillar filter 2 ' outflow, paddle hole 112 on flowing through on the valve valve casing and the chamfered groove F on the spool, flow to blow-off pipe 1141 through the mudhole 114 on the valve casing lower bottom cover again and discharge, realize araeosystyle filter 2 ' the carry out function of backwash.Last valve core and following valve core are when this station, and pillar filter 2 is in the product water state, pillar filter 2 ' be in backwash state.
Produce water-just washing station: as shown in Figure 10, last valve core and following valve core all are rotated counterclockwise 60 ° from the position of above-mentioned product water-backwash station by motor drives, arrive this station, on this moment on the valve core side opening of chamfered groove B and chamfered groove E be communicated with the side opening sealing of all the other chamfered grooves with paddle hole 111 and 112 on the valve casing respectively; On the following valve core side opening of chamfered groove b and chamfered groove e respectively with the paddle hole 111 of following valve valve casing ' and 112 ' be communicated with, the side opening sealing of all the other chamfered grooves, backwash hole 114 on the upper shed of chamfered groove b and the hydroecium 3 ' communicate, the under shed of chamfered groove e and valve casing lower bottom cover ' communicate; After current enter in the hydroecium 3 from main inlet opening 113, part water chamfered groove B from the spool paddle hole 111 of flowing through enters in the pillar filter 2, handling the back flows out from pillar filter 2, flow through down paddle hole 111 on the valve valve casing ' and spool on chamfered groove b enter hydroecium 3 ' in, by main apopore 113 ' discharge, realize the product water function of pillar filter 2 then; Another part water in the hydroecium 3 from the paddle hole 112 of chamfered groove E on valve casing of last valve core enter pillar filter 2 ' in, araeosystyle filter 2 ' just wash, after just washing, current are from pillar filter 2 ' outflow, through the paddle hole 112 on the following valve valve casing ' and spool on chamfered groove e flow to backwash hole 114 ', magnetic valve 4 unlatchings this moment, magnetic valve 4 ' close, current enter tube connector 5 then, enter blow-off pipe 1141 back along tube connector 5 and discharge, realize araeosystyle filter 2 ' just wash function.Last valve core and following valve core are when this station, and pillar filter 2 is in the product water state, pillar filter 2 ' the be in state of just washing.
Above-mentioned 6 stations just in time make valve core and following valve core rotate a week, finished a work period, when last valve core and following valve core when above-mentioned product water-just washing station is rotated counterclockwise 60 ° again, will arrive the product water shown in the accompanying drawing 5-product water conservancy project position, begin a work period again.
Claims (7)
1, a kind of water treatment facilities, it has comprised pillar filter unit group, and the control device of control current trend, each pillar filter unit group comprises two pillar filters, described control device comprises preceding control valve (deserving to be called valve down) and back control valve (calling down valve in the following text), control valve comprises valve casing and spool, and spool is arranged on valve casing inside; Having on the valve casing of described each control valve can that connect, relative two paddle hole with the last lower pipeline of pillar filter, has main inlet opening on the valve casing of last valve, has main apopore on the following valve valve casing; Have mudhole on the lower bottom cover of last valve valve casing, have the backwash hole on the lower bottom cover of following valve valve casing; The hydroecium that is communicated with main water inlet tube is arranged at the top of last valve core, and the hydroecium that is communicated with primary flow pipe is arranged at the top of following valve core; It is characterized in that:
1) going up the valve core profile is inverted truncated cone-shaped, on the sidewall of spool, have 6 chamfered grooves, wherein the upper shed of 5 trapezoidal chamfered grooves communicates with hydroecium, and side opening optionally communicates with paddle hole on the valve casing, and the under shed of 1 trough with straight angle communicates with mudhole on the valve casing lower bottom cover.
2) the valve core profile is inverted truncated cone-shaped down, on the sidewall of spool, have 6 chamfered grooves, the upper shed of wherein adjacent 4 trapezoidal chamfered grooves communicates with hydroecium, and side opening optionally communicates with paddle hole on the valve casing, and the backwash hole on 2 trough with straight angle valve casing lower bottom covers communicates in addition.
2, water treatment facilities according to claim 1 is characterized in that: described 6 chamfered grooves going up valve core are evenly distributed on the spool.
3, water treatment facilities according to claim 1 is characterized in that: described 6 chamfered grooves of valve core down are evenly distributed on the spool.
4, water treatment facilities according to claim 1 is characterized in that: the cross section of described trapezoidal chamfered groove is approximately trapezoidal.
5, water treatment facilities according to claim 1 is characterized in that: the longitudinal section of described trough with straight angle is a square.
6, water treatment facilities according to claim 1 is characterized in that: the described mudhole of going up valve is communicated with blow-off pipe, and the backwash hole of following valve is communicated with the backwash pipe.
7, water treatment facilities according to claim 6 is characterized in that: be furnished with 1 threeway on above-mentioned backwash pipe, be furnished with 1 threeway on the blow-off pipe, be communicated with by tube connector between two threeways, be furnished with magnetic valve on the tube connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100444111A CN100402125C (en) | 2005-08-19 | 2005-08-19 | Water treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100444111A CN100402125C (en) | 2005-08-19 | 2005-08-19 | Water treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1765466A true CN1765466A (en) | 2006-05-03 |
| CN100402125C CN100402125C (en) | 2008-07-16 |
Family
ID=36741706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100444111A Expired - Fee Related CN100402125C (en) | 2005-08-19 | 2005-08-19 | Water treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100402125C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498069A (en) * | 2009-03-09 | 2012-06-13 | 商标专利企业有限公司唯一股东 | Method and device for dissolving solid substances in water |
| CN102631802A (en) * | 2012-04-27 | 2012-08-15 | 陈校波 | Reversing valve sand filter and valve core thereof |
| CN104353276A (en) * | 2014-11-05 | 2015-02-18 | 河海大学 | Ultrasonic-based centrifugal type bidirectional automatic-backwashing water-sediment separating device |
| CN104436836A (en) * | 2014-11-05 | 2015-03-25 | 河海大学 | Centrifugal type bidirectional backwashing automatic Yellow River irrigation device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1027917C (en) * | 1991-09-24 | 1995-03-15 | 川上惠子 | Variable valve device for water filter |
| CN1089185A (en) * | 1992-03-24 | 1994-07-13 | 邓佑 | Automatic, efficient, continuous filter |
| US5383491A (en) * | 1994-01-19 | 1995-01-24 | Heilman; David D. | Dual tandem flow diverter valve system |
| CN2305400Y (en) * | 1996-12-27 | 1999-01-27 | 陈恺瑞 | Reverse osmosis pure water machine with back flushing type front precision safety filter system |
| CN2445793Y (en) * | 2000-08-10 | 2001-09-05 | 范义河 | Control valve of filtering water treatment equipment |
| CN2823244Y (en) * | 2005-08-19 | 2006-10-04 | 范义河 | Water treatment device |
-
2005
- 2005-08-19 CN CNB2005100444111A patent/CN100402125C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498069A (en) * | 2009-03-09 | 2012-06-13 | 商标专利企业有限公司唯一股东 | Method and device for dissolving solid substances in water |
| CN102631802A (en) * | 2012-04-27 | 2012-08-15 | 陈校波 | Reversing valve sand filter and valve core thereof |
| CN104353276A (en) * | 2014-11-05 | 2015-02-18 | 河海大学 | Ultrasonic-based centrifugal type bidirectional automatic-backwashing water-sediment separating device |
| CN104436836A (en) * | 2014-11-05 | 2015-03-25 | 河海大学 | Centrifugal type bidirectional backwashing automatic Yellow River irrigation device |
| CN104436836B (en) * | 2014-11-05 | 2016-03-23 | 河海大学 | Yellow irrigation rig is drawn in a kind of automation of centrifugal two-way backwash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100402125C (en) | 2008-07-16 |
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