CN202113692U - Filter back wash control trigger device and automatic back wash filter system - Google Patents
Filter back wash control trigger device and automatic back wash filter system Download PDFInfo
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- CN202113692U CN202113692U CN2011202400087U CN201120240008U CN202113692U CN 202113692 U CN202113692 U CN 202113692U CN 2011202400087 U CN2011202400087 U CN 2011202400087U CN 201120240008 U CN201120240008 U CN 201120240008U CN 202113692 U CN202113692 U CN 202113692U
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- filtration
- backwash
- tank body
- gangbar
- filter
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Abstract
The utility model discloses a filter back wash control trigger device and an automatic back wash filter system, which comprise a compression cylinder (18). An extensible spring (7) and a piston (6) are sequentially arranged inside the compression cylinder from top to bottom. The upper end of the extensible spring (7) is a fixed end fixed on top of the compression cylinder, and the lower end of the extensible spring is a free end connected with the piston (6). A linkage rod (8) is arranged at the axis position of the extensible spring (7), and the bottom of the linkage rod (8) is connected with the piston (6). The top of the linkage rod (8) extends out of the compression cylinder (18) to form a top end (9) of the linkage rod. A limit conversion controller (10) is arranged above the top end (9) of the linkage rod. Linear proportion relations of pressure of the filter front end are changed into space displacement of the top end of the linkage rod, thereby obtaining stable feasible conversion of the pressure at the filter front end and control signals. Accordingly, after a relay control circuit is configured with the filter back wash control trigger device, automatic back wash can be obtained.
Description
Technical field
The utility model belongs to water filtration water treatment field in supply water filtration or the production, is specifically related to filter backwash control flip flop equipment and automatic backwash filtration system.
Background technology
At present, supply water and the backwash of sewage disposal press filtration be designed with dual mode: the backwash admission port is generally designed for pet-valve build filter in (1), drives the vara head through the distortion of filter screen forced belt moving vane film, thereby opens the backwash of backwash effected.This kind automatic backwash control valvular deformity property is little, and the valve body that only is suitable for DN20 ~ DN70 uses.(2),, generally adopt hydraulic pressure sensor to obtain to control the backwash of accomplishing sand filter by the PLC work station behind water level (or hydraulic pressure) signal at present like the V-type filter tank for large-scale filtration facility.The PLC automatic control station of this mode; The automatic control equipment cost is higher; Filtering for middle-size and small-size filter-press type will the unit's of increasing considerably cost of water treatment; Hydraulic pressure sensor is limited to by its principle, and signal is subject to factor affecting such as transmission range, electromagnetic interference, sensor are aging, and plant maintenance requires the Gao Gengxin cycle short.
The utility model content
The utility model technical problem to be solved provides filters backwash control flip flop equipment; The pressure that this device will filter front end is converted into the space displacement on gangbar top linearly proportionally, thereby realizes filtering the feasible conversion of stablizing of front end pressure and control signal.Therefore, the utility model can be realized automatic backwash after filtering backwash control flip flop equipment outfit control relay circuit.
The utility model device another technical problem to be solved provides the automatic backwash filtration system, and this automatic backwash filtration system is equipped with filters backwash control flip flop equipment, can realize automatic backwash.
The technical scheme that the above-mentioned technical problem of the utility model device solves is adopted is: filter backwash control flip flop equipment, comprise that inside is provided with the pressure cylinder that receives of flexible springs; The upper end of said flexible springs is fixed on and receives the pressure cylinder top, and the lower end connects piston and constitutes free end; The axial location of said flexible springs is provided with gangbar, and the bottom of said gangbar is connected with said piston, and the top of gangbar is stretched out and received pressure cylinder to constitute the gangbar top outward, above the gangbar top, is provided with spacing switching controller.
The said pressure cylinder that receives is a cylindrical shape.
In the technique scheme; The free-ended piston of flexible springs is communicated with the pressure detection site, and when the pressure of sensing when piston surpassed preset pressure, piston was along with the free end of flexible springs is subjected to displacement; At this moment, the gangbar that is connected with piston also is subjected to displacement thereupon.When displacement acquires a certain degree, the gangbar top will touch spacing switching controller.
Another technical scheme that the above-mentioned technical problem of the utility model device solves is adopted is: have the automatic backwash filtration system of above-mentioned filtration backwash control flip flop equipment, comprise filtration tank body that is provided with filter element and the water tank that is provided with export and import; Said filtration tank body comprises the filtration front end of filter element below and the filtration rear end of filter element top; The filtration front end of said filtration tank body is provided with water inlet and sewage draining exit, filters the rear end and is provided with delivery port and backwash mouth; Said water inlet connects intake pump through water intaking valve, and said sewage draining exit connects blowoff valve; Said delivery port is through the import of outlet valve connection water tank, and the outlet of said water tank is connected with the backwash mouth through backwashing pump, backwash valve successively; Said filter element constitutes the feed liquor face that filters in the tank body with the intersection that filters front end, and the pressure cylinder that receives of said filtration backwash control flip flop equipment is communicated with the feed liquor face.
When said flexible springs was in former long status, the piston that said flexible springs connects was in identical horizontal level with the feed liquor face.
Said filtration backwash control flip flop equipment places and filters in the tank body.
Said filtration backwash control flip flop equipment places filtering tank external; And the said pressure cylinder that receives passes through by extended short tube of sidewall that filters the feed liquor face below in the tank body and filtration tank body internal communication.
In the technique scheme, after spacing switching controller is touched on the gangbar top, promptly can start correspondent control circuits, realize automatic backwash.This device provides a control current signal or a switching signal through the spacing switching controller of appropriate touching under setting pressure to the control system, starts the backwash process of filtration system.
The utility model for the backwash step of general filter-pressing process is: after spacing switching controller is touched on the gangbar top, start correspondent control circuits, accomplish following process: a. successively and close intake pump b. and open blowoff valve; C. close outlet valve; D. open recoil valve; E. start recoil pump.More than after 5 steps accomplish; Make above equipment state certain time section through the time relay; Duration finishes, and backwash stops, and the order that press filteration system is accordinged to e, d, c, b according to custom-designed control circuit returns original state; And restart intake pump, begin a new filter cycle.Described " control circuit " is prior art, and those skilled in the art can design according to the procedural order of the described valve opening and closing of the utility model at an easy rate.
In sum, the utility model device compared with prior art has following advantage:
(1) the utility model filters backwash control flip flop equipment and receives the flexible springs that load is taken over a job and filled in the pressure cylinder; The free end piston of this flexible springs is installed on the feed liquor face that filters tank body (or draw short tube by the filtering tank body sidewall pressure of feed liquor face is delivered to the piston free end); Gangbar is connected with the flexible springs free end; The resistance that frictional force and the gangbar of piston and the inner tube wall that receives pressure cylinder produces the flexible springs free end is not because change with the fluid pressure size, so can ignore to the influence of the linear positive correlation of gangbar displacement and fluid pressure.Through calculating, selection to the flexible springs coefficient of elasticity, confirm suitable flexible springs, guarantee to filter the forefront pressure excursion in the elastic limit of flexible springs.Being connected in the free-ended gangbar of flexible springs can have the spacing switching controller of any obstruction ground touching, guarantees to filter the stable corresponding relation that spacing switching controller is touched on forefront pressure and gangbar top.Therefore; The pressure that the utility model will filter front end is converted into the space displacement on gangbar top linearly proportionally; The space displacement on gangbar top can stably be touched spacing switching controller, thereby realizes filtering the feasible conversion of stablizing of front end pressure and control signal.
(2) the utility model automatic backwash filtration system is applicable to the situation that dependence is exerted pressure and realize to be filtered medium; The situation of the filtration that promptly is suitable for is: medium pressurized, mobile through filter element, filter element block the process of suspended particulate realization medium filtering in the medium; The utility model is applicable in the filter process because of the filter screen of filter element is stopped up by suspended particulate and causes filter screen (or other need filter liquide) the face pressure that meets water to increase, and is elevated to and to a certain degree need starts the process that machinery is accomplished decompression operation (such as backwash) when filtering front end pressure; The utility model provides a control current signal or a switching signal to the control system, the decompression backwash process of startup filtration system through the spacing switching controller of the appropriate touching of interlock masthead end under setting pressure.
(3) adopt equipment purchasing and the installation cost of the control of the utility model and corresponding electric appliance thereof be approximately prior art PLC control cost automatically 1/5 ~ 1/8, and control structure is simple and easy; Control accuracy is high; The factor that can influence automatic control is few, good stability, and fault rate is low; The automatic control component replacement cycle is long, and especially first water supply and the automatic control of draining press filtration recoil that is fit to medium-scale is handled.
(4) the utility model device can increase substantially the service efficiency of equipment, will obtain bigger society and economic benefit simultaneously.
Description of drawings
Fig. 1 filters the structural representation of a kind of embodiment of backwash control flip flop equipment for the utility model.
Fig. 2 is the structural representation of a kind of embodiment of the utility model automatic backwash filtration system.
Fig. 3 is the structural representation of the another kind of embodiment of the utility model automatic backwash filtration system.
The corresponding title of each parts among the figure: 1-filters tank body, 2-water inlet, 3-backwash mouth, 4-sewage draining exit, 5-delivery port; The 6-piston, 7-flexible springs, 8-gangbar, 9-gangbar top, the spacing switching controller of 10-; The 11-intake pump, 12-water intaking valve, 13-blowoff valve, 14-water tank; The 15-backwashing pump, the 16-backwash valve, the 17-outlet valve, 18-receives pressure cylinder.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model device is done further to specify, but the embodiment of the utility model device is not limited thereto.
As shown in Figure 1, filter backwash control flip flop equipment, comprise that cylindrical shape receives pressure cylinder 18; Receive from top to bottom to be provided with successively in the pressure cylinder piston 6 of flexible springs 7 and connection thereof.The upper end of flexible springs 7 is fixed on and receives the pressure cylinder top, is stiff end; The lower end is connected with piston 6, constitutes free end.Axial location in flexible springs 7 is provided with gangbar 8.The bottom of said gangbar 8 is connected with piston 6, and gangbar 8 is passed from said flexible springs 7 axial location, and the top is stretched out and received outside the pressure cylinder 18.Gangbar top 9 is formed on the top of gangbar 8, above gangbar top 9, is provided with spacing switching controller 10.
During use, the bottom that receives pressure cylinder 18 is communicated with the pressure detection site.When making flexible springs 7 be in former long status, the piston 6 that flexible springs 7 connects is in identical horizontal level with the pressure detection site.When the pressure of sensing when piston 6 surpassed preset pressure, piston 6 was along with the free end of flexible springs 7 is subjected to displacement, and at this moment, the gangbar 8 that is connected with piston also is subjected to displacement thereupon.When displacement acquires a certain degree, gangbar top 9 will touch spacing switching controller.Spacing switching controller is equipped with certain control circuit, promptly can realize a series of subsequent control processes.
As shown in Figures 2 and 3, have the automatic backwash filtration system of filtering backwash control flip flop equipment, comprise filtration tank body 1 that is provided with filter element and the water tank 14 that is provided with export and import.Said filtration tank body 1 comprises the filtration front end of filter element below and the filtration rear end of filter element top; The filtration front end of said filtration tank body 1 is provided with water inlet 2 and sewage draining exit 4, filters the rear end and is provided with delivery port 5 and backwash mouth 3; Said water inlet 2 is connected with intake pump 11 through water intaking valve 12, and said sewage draining exit 4 connects blowoff valve 13; Said delivery port 5 is through the import of outlet valve 17 connection water tanks, and the outlet of said water tank is connected with backwash mouth 3 through backwashing pump 15, backwash valve 16 successively.
Operation principle is: the pending sewage water intaking valve 12 of automatic backwash filtration system from now on gets into filtration tank body 1 with intake pump 11, and after filtering through the filter element that filters tank body 1, clear water rises and stores from delivery port inflow water tank 14.Impure more sewage is then discharged with blowoff valve 13 by the sewage draining exit that filters front end 4 and is filtered tank body 1.When the needs backwash, be stored in clear water in the water tank 14 under the effect of backwashing pump 15, through backwash valve 16 and backwash mouth 3, there is the rear end of filtration oppositely to get into the filtration tank body, reach the purpose of backwash.
In the present embodiment, said filter element constitutes the feed liquor face that filters in the tank body 1 with the intersection that filters front end, in filtering tank body 1, also is provided with to filter backwash control flip flop equipment.Promptly in filtering tank body 1, be provided with cylindrical shape and receive pressure cylinder 18, be communicated with the feed liquor face by pressure cylinder 18.Receive from top to bottom to be provided with successively in the pressure cylinder flexible springs 7 and piston 6.The upper end of flexible springs 7 is fixed on and receives the pressure cylinder top, is stiff end; The lower end is connected with piston 6, constitutes free end.Axial location in flexible springs 7 is provided with gangbar 8.The bottom of said gangbar 8 is connected with piston 6, and gangbar 8 is passed from said flexible springs 7 axial location, and the top is stretched out and received outside the pressure cylinder 18.Gangbar top 9 is formed on the top of gangbar 8, above gangbar top 9, is provided with spacing switching controller 10.
When specifically being provided with, when said flexible springs 7 was in former long status, the piston 6 that said flexible springs 7 is connected was in identical horizontal level with the feed liquor face.Therefore, the piston 6 of flexible springs 7 connections can be responded to the pressure of the intersection feed liquor face of filter element and filtration front end.When the pressure of sensing when piston 6 surpassed preset pressure, flexible springs 7 was in confined state, and piston 6 is along with the free end of flexible springs 7 is subjected to displacement, and at this moment, the gangbar 8 that is connected with piston also is subjected to displacement thereupon.When displacement acquires a certain degree, gangbar top 9 will touch spacing switching controller.Spacing switching controller is equipped with certain control circuit, promptly can realize the backwash process of a series of subsequent control.
The present embodiment backwash process is: behind the spacing switching controller 10 of gangbar top 9 touchings, start custom-designed control circuit, accomplish following process: a. successively and close intake pump 11; B. open blowoff valve 13; C. close outlet valve 17; D. open recoil valve 16; E. start recoil pump 15.More than after 5 steps accomplish, make above equipment state certain time section through the time relay, the duration finishes, backwash process stops.The order that the automatic backwash filtration system accordings to e, d, c, b according to custom-designed control circuit returns original state, and restarts intake pump 11, begins a new filter cycle.Described " control circuit " is prior art, and the procedural order of those skilled in the art's valve opening and closing having thus described the invention can design at an easy rate.
Present embodiment and embodiment 2 are basic identical, and its difference only is: said filtration backwash control flip flop equipment places and filters outside the tank body 1; And the sidewall that filters the feed liquor face below in the tank body 1 extends short tube, said receive pressure cylinder 18 through said short tube by with filtration tank body internal communication.Therefore, receive the piston 6 that flexible springs 7 connects in the pressure cylinder can pass through the pressure that short tube is responded to filter element and filtered the intersection feed liquor face of front end.
As stated, just can realize the utility model device preferably.
Claims (6)
1. filter backwash control flip flop equipment, it is characterized in that, what comprise that inside is provided with flexible springs (7) receives pressure cylinder (18); The upper end of said flexible springs (7) is fixed on and receives the pressure cylinder top, and the lower end connects piston (6) and constitutes free end; The axial location of said flexible springs (7) is provided with gangbar (8); And the bottom of said gangbar (8) is connected with said piston (6); The top of gangbar (6) is stretched out and is received the outer formation of pressure cylinder (18) gangbar top (9), is provided with spacing switching controller (10) in the top of gangbar top (9).
2. a kind of filtration backwash control flip flop equipment according to claim 1 is characterized in that the said pressure cylinder (18) that receives is cylindrical shape.
3. have the automatic backwash filtration system of claim 1 or 2 described filtration backwash control flip flop equipments, it is characterized in that, comprise filtration tank body (1) that is provided with filter element and the water tank (14) that is provided with export and import; Said filtration tank body (1) comprises the filtration front end of filter element below and the filtration rear end of filter element top; The filtration front end of said filtration tank body (1) is provided with water inlet (2) and sewage draining exit (4), filters the rear end and is provided with delivery port (5) and backwash mouth (3); Said water inlet (2) connects intake pump (11) through water intaking valve (12), and said sewage draining exit (4) connects blowoff valve (13); Said delivery port (5) is through the import of outlet valve (17) connection water tank, and the outlet of said water tank is connected with backwash mouth (3) through backwashing pump (15), backwash valve (16) successively; Said filter element constitutes the feed liquor face that filters in the tank body (1) with the intersection that filters front end, and the pressure cylinder (18) that receives of said filtration backwash control flip flop equipment is communicated with the feed liquor face.
4. automatic backwash filtration system according to claim 3 is characterized in that, when said flexible springs (7) was in former long status, the piston (6) that said flexible springs (7) connects was in identical horizontal level with the feed liquor face.
5. automatic backwash filtration system according to claim 4 is characterized in that, said filtration backwash control flip flop equipment places and filters in the tank body (1).
6. automatic backwash filtration system according to claim 4 is characterized in that, said filtration backwash control flip flop equipment places and filters outside the tank body (1); And the said pressure cylinder (18) that receives passes through by extended short tube of sidewall that filters the feed liquor face below in the tank body (1) and filtration tank body internal communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202400087U CN202113692U (en) | 2011-07-08 | 2011-07-08 | Filter back wash control trigger device and automatic back wash filter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202400087U CN202113692U (en) | 2011-07-08 | 2011-07-08 | Filter back wash control trigger device and automatic back wash filter system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202113692U true CN202113692U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202400087U Expired - Fee Related CN202113692U (en) | 2011-07-08 | 2011-07-08 | Filter back wash control trigger device and automatic back wash filter system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202113692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237583A (en) * | 2019-05-30 | 2019-09-17 | 浦江县鑫隆自动化设备有限公司 | A kind of filter with automatic back-flushing device |
| CN113582359A (en) * | 2021-08-05 | 2021-11-02 | 中奥生态环境股份有限公司 | Be applied to sewage treatment plant that water environment was administered |
-
2011
- 2011-07-08 CN CN2011202400087U patent/CN202113692U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110237583A (en) * | 2019-05-30 | 2019-09-17 | 浦江县鑫隆自动化设备有限公司 | A kind of filter with automatic back-flushing device |
| CN113582359A (en) * | 2021-08-05 | 2021-11-02 | 中奥生态环境股份有限公司 | Be applied to sewage treatment plant that water environment was administered |
| CN113582359B (en) * | 2021-08-05 | 2022-03-29 | 中奥生态环境股份有限公司 | Be applied to sewage treatment plant that water environment was administered |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |