CN206985878U - A kind of environmentally friendly water conservancy filter - Google Patents
A kind of environmentally friendly water conservancy filter Download PDFInfo
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- CN206985878U CN206985878U CN201720807384.7U CN201720807384U CN206985878U CN 206985878 U CN206985878 U CN 206985878U CN 201720807384 U CN201720807384 U CN 201720807384U CN 206985878 U CN206985878 U CN 206985878U
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Abstract
The utility model discloses a kind of environmentally friendly water conservancy filter.Filter is the important step that effluent cycle utilizes.The utility model includes by-pass filtration module, secondary filtration module, three-stage filtration module, turbid baffle-box and the 3rd water pump.By-pass filtration module includes the first on-off valve, the first air pump, the first check valve, by-pass filtration case, the first motor, the second on-off valve, the first ash can, the first water pump, the first back flushing tank, the 3rd on-off valve and the first filter screen.Secondary filtration module includes secondary filtration case, the second motor, belt wheel, hairbrush, the second back flushing tank, the second water pump, the second air pump, the second check valve, the 4th on-off valve, the second ash can, the second filter screen and the 5th on-off valve.Three-stage filtration module includes cyclone separator, three-stage filtration case, the 6th on-off valve, sump oil case, the first purifying ball, the second purifying ball and oil-filtering film.The utility model can reach good filter effect by being chopped into multiple filtration.
Description
Technical field
The utility model belongs to liquid filtration art, and in particular to a kind of environmentally friendly water conservancy filter.
Background technology
Water is a kind of irreplaceable valuable source, is the indispensable factor of human kind sustainable development.But due to the mankind
Pollution of the surge and mankind's activity of population to water resource, makes tellurian water resource increasingly in short supply.
China's effluent sewage discharge capacity is increased to 63,100,000,000 tons in 2002 by 31,500,000,000 tons in 1980.Most urban groundwaters
Polluted to a certain extent, and have the trend aggravated year by year.The water pollution being on the rise not only reduces the use work(of water body
Can, it has been further exacerbated by the contradiction of shortage of water resources, but also serious threat is to the safe drinking water and health of city dweller.2000
Year 62000000000 tons of total amount of sewage discharge, about 80% is directly discharged into river,lake and reservior, more than 90% ground water without any processing
Body, 97% Urban Underground water-bearing layer are contaminated.Because some areas amount of groundwater mining exceedes increment, the whole nation has occurred
Groundwater Overdraft Area 164,180,000 square kilometres of the gross area, and triggered a series of ecologies such as surface subsidence, seawater invasion to ask
Topic.
As the intensification to natural cognition and the progress of science and technology, the mankind gradually recognize that water is the money that can be regenerated
Source, sewage pass through proper treatment, can reused, and realize benign cycle of the water in nature.And filter is sewage
The important step recycled, therefore it is particularly significant to design a kind of sewage filter device of good filtration effect.
The content of the invention
The purpose of this utility model is to provide a kind of sewage filter device with multi-filtering ability.
The utility model includes by-pass filtration module, secondary filtration module, three-stage filtration module, turbid baffle-box and the 3rd
Water pump.
Described by-pass filtration module includes the first on-off valve, the first air pump, the first check valve, by-pass filtration case, first
Motor, the second on-off valve, the first ash can, the first water pump, the first back flushing tank, the 3rd on-off valve and the first filter screen.Described
First filter screen is fixed in by-pass filtration case, and the inner chamber of by-pass filtration case is divided into the first soil chamber and the first filter chamber.
The entrance of first on-off valve and sewage flow passage, outlet connect with the sewage inlet of by-pass filtration case.The dirt of by-pass filtration case
Water inlet directly connects with the first soil chamber.The entrance of first check valve connects with the gas outlet of the first air pump, outlet and one-level
The pumping entrance connection of Rose Box.The pumping entrance of by-pass filtration case is located at the top of by-pass filtration case.It is solid in first soil chamber
Surely there is the first motor.The output shaft of first motor is fixed with the first impeller.The entrance of second on-off valve is useless with by-pass filtration case
Expect outlet.The waste outlet of by-pass filtration case directly connects with the first soil chamber.The outlet of second on-off valve is useless with first
Hopper connects.The water inlet of first water pump connects with the first back flushing tank, and delivery port connects with the recoil entrance of by-pass filtration case.
The recoil entrance of by-pass filtration case is located at the edge of the first filter screen.3rd entrance of on-off valve and filtering out for by-pass filtration case
Mouth connection.The filtering outlet of by-pass filtration case directly connects with the first filter chamber.
Described secondary filtration module includes secondary filtration case, the second motor, belt wheel, hairbrush, the second back flushing tank, second
Water pump, the second air pump, the second check valve, the 4th on-off valve, the second ash can, the second filter screen and the 5th on-off valve.Described
Two filter screens are fixed in secondary filtration case, and the inner chamber of secondary filtration case is divided into the second soil chamber and the second filter chamber.Two
Two belt wheels are supported with level Rose Box.Two belt wheels are by being driven band connection.One of belt wheel is driven by V belt translation motor.
Hairbrush is fixed with transmission belt.Hairbrush is arranged in the second soil chamber；And the bristle of hairbrush contacts with the second filter screen.Secondary filtration
The outlet of the sewage inlet of case and the 3rd on-off valve.The sewage inlet of secondary filtration case directly connects with the second soil chamber.
The entrance of second check valve connects with the gas outlet of the second air pump, and outlet connects with the pumping entrance of secondary filtration case.Two level mistake
The pumping entrance of filter box is located at the top of secondary filtration case.The second motor is fixed with second soil chamber.The output of second motor
Axle is fixed with the second impeller.The entrance of 4th on-off valve connects with the waste outlet of secondary filtration case.The waste material of secondary filtration case
Outlet directly connects with the second soil chamber.The outlet of 4th on-off valve connects with the second ash can.The water inlet of second water pump with
Second back flushing tank connects, and delivery port connects with the recoil entrance of secondary filtration case.The recoil entrance of secondary filtration case is positioned at the
The edge of two filter screens.The entrance of 5th on-off valve connects with the filtering outlet of secondary filtration case.Secondary filtration case filters out
Mouth directly connects with the second filter chamber.
Described three-stage filtration module includes cyclone separator, three-stage filtration case, the 6th on-off valve, sump oil case, first net
Change ball, the second purifying ball and oil-filtering film.Described oil-filtering film is fixed in three-stage filtration case, and the inner chamber of three-stage filtration case is divided
It is divided into containing oil pocket and removes oil pocket.The inner chamber of cyclone separator is made up of cylindrical cavity and round platform chamber.One end of cylindrical cavity and round platform chamber
Bigger diameter end be connected.Oblique hole and the outlet of the 5th on-off valve on cylindrical cavity.The other end of cylindrical cavity is as overfall
Connected with the entrance of three-stage filtration case.The entrance of three-stage filtration case connects with containing oil pocket.The miner diameter end of round platform chamber is as underflow opening
Connected with the entrance of turbid baffle-box.The outlet of turbid baffle-box connects with the entrance of the 3rd water pump.The outlet of 3rd water pump with
The loop head connection of by-pass filtration case.The loop head of by-pass filtration case connects with the first soil chamber.6th on-off valve enters
The greasy dirt outlet of mouth and three-stage filtration case.The greasy dirt outlet of three-stage filtration case connects with containing oil pocket.6th on-off valve goes out
Mouth connects with sump oil case.The filtering outlet that three-stage filtration case is located at intracavitary of deoiling connects with the entrance of the first purifying ball.First is net
The outlet for changing ball connects with the entrance of the second purifying ball.The outlet of second purifying ball and water purification flow passage.
The pore diameter of first filter screen is 2mm.
The pore diameter of second filter screen is 0.3mm.
The both ends of the hairbrush are located at two edges of the second filter screen respectively.
It is less than 2mm sandstone in the first described purifying ball filled with diameter.
Activated carbon is filled with the second described purifying ball.
The first described filter screen is vertically arranged.
The second described filter screen is vertically arranged.
Described oil-filtering film is horizontally disposed with.
The utility model has an advantageous effect in that：
1st, the utility model progressively improves the water quality of sewage by being chopped into multiple filtration, can reach good filtering effect
Fruit.
2nd, the utility model by way of cyclonic separation, is carried out further by sewage after two layers of solid filters
Separation of solid and liquid.
3rd, the utility model has back flushing capability, can timing flushing filtering net, ensure the effect that persistently uses.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic diagram of by-pass filtration module in the utility model；
Fig. 3 is the schematic diagram of secondary filtration module in the utility model；
Fig. 4 is the schematic diagram of three-stage filtration module in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1,2 and 3, a kind of environmentally friendly water conservancy filter, including by-pass filtration module, secondary filtration module, three
Level filtering module, the water pump 23 of turbid baffle-box 22 and the 3rd.
By-pass filtration module includes the first on-off valve 2, the first air pump 3, the first check valve 4, the electricity of by-pass filtration case 5, first
Machine 6, the second on-off valve 7, the first ash can 8, the first water pump 9, the first back flushing tank 10, the 3rd on-off valve 11 and the first filter screen
30.The pore diameter of first filter screen 30 is 2mm.First filter screen 30 is fixed in by-pass filtration case 5, and by by-pass filtration case 5
Inner chamber is divided into the first soil chamber and the first filter chamber.First filter screen 30 is vertically arranged.The entrance of first on-off valve 2 and sewage stream
Road 1 connects, and outlet connects with the sewage inlet of by-pass filtration case 5.The sewage inlet of by-pass filtration case 5 and the first soil chamber are direct
Connection.The entrance of first check valve 4 connects with the gas outlet of the first air pump 3, and outlet and the pumping entrance of by-pass filtration case 5 connect
It is logical.The pumping entrance of by-pass filtration case 5 is located at the top of by-pass filtration case 5.The first motor 6 is fixed with first soil chamber.The
The output shaft of one motor 6 is fixed with the first impeller.The entrance of second on-off valve 7 connects with the waste outlet of by-pass filtration case 5.One
The waste outlet of level Rose Box 5 directly connects with the first soil chamber.Connected with the first ash can 8.The water inlet of first water pump 9 with
First back flushing tank 10 connects, and the outlet of the second on-off valve of delivery port 7 connects with the recoil entrance of by-pass filtration case 5.One-level mistake
The recoil entrance of filter box 5 is located at the edge of the first filter screen 30.3rd entrance of on-off valve 11 and filtering out for by-pass filtration case 5
Mouth connection.The filtering outlet of by-pass filtration case 5 directly connects with the first filter chamber.
Secondary filtration module include secondary filtration case 12, the second motor 13, belt wheel 14, hairbrush 15, the second back flushing tank 16,
Second water pump 17, the second air pump 18, the second check valve, the 4th on-off valve 19, the second ash can 20, the second filter screen 31 and the 5th are logical
Disconnected valve 33.The pore diameter of second filter screen 31 is 0.3mm.Second filter screen 31 is fixed in secondary filtration case 12, and by two level mistake
The inner chamber of filter box 12 is divided into the second soil chamber and the second filter chamber.Second filter screen is vertically arranged.Supported in secondary filtration case 12
There are two belt wheels 14.Two belt wheels 14 are by being driven band connection.One of belt wheel 14 is driven by V belt translation motor.On transmission belt
It is fixed with hairbrush 15.Hairbrush 15 is arranged in the second soil chamber；And the bristle of hairbrush 15 contacts with the second filter screen 31.Hairbrush 15
Both ends are located at two edges of the second filter screen 31 respectively.The outlet of the sewage inlet of secondary filtration case 12 and the 3rd on-off valve 11
Connection.The sewage inlet of secondary filtration case 12 directly connects with the second soil chamber.The entrance of second check valve and the second air pump 18
Gas outlet connection, outlet connected with the pumping entrance of secondary filtration case 12.The pumping entrance of secondary filtration case 12 is located at two level
The top of Rose Box 12.The second motor 13 is fixed with second soil chamber.The output shaft of second motor 13 is fixed with the second impeller.
The entrance of 4th on-off valve 19 connects with the waste outlet of secondary filtration case 12.The waste outlet of secondary filtration case 12 and the second dirt
Water cavity directly connects.The outlet of 4th on-off valve 19 connects with the second ash can 20.The water inlet of second water pump 17 and second anti-
Waste preventer 16 connects, and delivery port connects with the recoil entrance of secondary filtration case 12.The recoil entrance of secondary filtration case 12 is positioned at the
The edge of two filter screens 31.The entrance of 5th on-off valve 33 connects with the filtering outlet of secondary filtration case 12.Secondary filtration case 12
Filtering outlet directly connected with the second filter chamber.
Three-stage filtration module includes cyclone separator 21, three-stage filtration case 24, the 6th on-off valve 25, sump oil case 26, first
Purifying ball 27, the second purifying ball 28 and oil-filtering film 32.Oil-filtering film 32 is fixed in three-stage filtration case 24, and by three-stage filtration case 24
Inner chamber be divided into containing oil pocket and removing oil pocket.Oil-filtering film is horizontally disposed with.The inner chamber of cyclone separator 21 is by cylindrical cavity and round platform chamber
Composition.One end of cylindrical cavity is connected with the bigger diameter end of round platform chamber.Oblique hole and the outlet of the 5th on-off valve 33 on cylindrical cavity connect
It is logical.The other end of cylindrical cavity connects as overfall with the entrance of three-stage filtration case 24.The entrance and oil-containing of three-stage filtration case 24
Chamber connects.The miner diameter end of round platform chamber connects as underflow opening with the entrance of turbid baffle-box 22.The outlet of turbid baffle-box 22 with
The entrance connection of 3rd water pump 23.The outlet of 3rd water pump 23 connects with the loop head of by-pass filtration case 5.By-pass filtration case 5
Loop head connected with the first soil chamber.The entrance of 6th on-off valve 25 and the greasy dirt outlet of three-stage filtration case 24.Three
The greasy dirt outlet of level Rose Box 24 connects with containing oil pocket.The outlet of 6th on-off valve 25 connects with sump oil case 26.Three-stage filtration case
24 filtering outlets for being located at intracavitary of deoiling connect with the entrance of the first purifying ball 27.The outlet of first purifying ball 27 and the second purification
The entrance connection of ball 28.The outlet of second purifying ball 28 connects with water purification runner 29.It is small filled with diameter in first purifying ball 27
In 2mm sandstone；Activated carbon is filled with second purifying ball 28.
Operation principle of the present utility model is as follows：
Sewage to be filtered enters by-pass filtration case 5 through sewage runner 1.Diameter is more than 2mm solid by the first filter screen 30
It is blocked in the first soil chamber, completes by-pass filtration.The sewage for completing by-pass filtration enters secondary filtration through the 3rd on-off valve 11
Case 12.Solid barrier of the diameter more than 0.3mm in the second soil chamber, is completed secondary filtration by the second filter screen 31.Complete two level
The sewage of filtering enters cyclone separator 21.Sewage without solid impurity enters three-stage filtration case 24 from overfall.It is miscellaneous containing solid
The sewage of matter enters turbid baffle-box 22, and reenters by-pass filtration case 5 by the supercharging of the 3rd water pump 23.If initially it is passed through
Sewage to be filtered contains greasy dirt, then the 6th on-off valve 25 is opened, and greasy dirt is blocked in oil-containing intracavitary by oil-filtering film 32, completes three-level mistake
Filter.The sewage of three-stage filtration is completed by entering water purification runner after the adsorption cleaning of the first purifying ball 27 and the second purifying ball 28
29.Filtering is completed.
After filtering continues one hour, the first on-off valve 2 is closed.Wait 5 minutes, be considered as by-pass filtration case 5 and secondary filtration
Sewage is flow to end in case 12, and the 3rd on-off valve 11 and the 5th on-off valve 33 are closed afterwards.First air pump 3 and the second air pump 18 start,
First motor 6 and the second motor 13 rotate, and the first water pump 9 and the second water pump 17 start, and V belt translation motor rotates.V belt translation motor
Rotational band electric brush 15 brushes the solid matter adhered on the second filter screen.Recoil in first back flushing tank 10 injects one-level with water
Rose Box 5, rinse the first filter screen.The rotation of first motor 6 can stir current, avoid solid matter from depositing.Second back-flushing
Recoil in case 16 injects secondary filtration case 12 with water, rinses the second filter screen.The rotation of second motor 13 can stir current, keep away
Exempt from solid matter deposition.Second on-off valve 7 and the 4th on-off valve 19 are opened.Because by-pass filtration case 5, secondary filtration case 12 are distinguished
By the supercharging of the first air pump 3, the second air pump 18.Therefore recoil drives solid matter to move quickly through the with water in by-pass filtration case 5
Two on-off valves 7 enter the first ash can 8.Therefore recoil drives solid matter to move quickly through the 4th break-make with water in secondary filtration case 12
Valve 19 enters the second ash can 20.Recoil is completed.First on-off valve 2, the 3rd on-off valve 11 and the 5th on-off valve 33 are opened, and second
The on-off valve 19 of on-off valve 7 and the 4th is closed, and the first air pump 3 and the second air pump 18 are closed, and the first motor 6 and the second motor 13 stop
Turn, the first water pump 9 and the second water pump 17 are closed, and the stalling of V belt translation motor, continue to start to filter.
Claims (9)
1. a kind of environmentally friendly water conservancy filter, including by-pass filtration module, secondary filtration module, three-stage filtration module, turbid are delayed
Rush case and the 3rd water pump；It is characterized in that：Described by-pass filtration module includes the first on-off valve, the first air pump, first unidirectional
Valve, by-pass filtration case, the first motor, the second on-off valve, the first ash can, the first water pump, the first back flushing tank, the 3rd on-off valve
With the first filter screen；The first described filter screen is fixed in by-pass filtration case, and the inner chamber of by-pass filtration case is divided into the first dirt
Water cavity and the first filter chamber；The entrance of first on-off valve and sewage flow passage, outlet and the sewage inlet of by-pass filtration case connect
It is logical；The sewage inlet of by-pass filtration case directly connects with the first soil chamber；The outlet of the entrance of first check valve and the first air pump
Mouth connection, outlet connect with the pumping entrance of by-pass filtration case；The pumping entrance of by-pass filtration case is located at the top of by-pass filtration case
Portion；The first motor is fixed with first soil chamber；The output shaft of first motor is fixed with the first impeller；The entrance of second on-off valve
Connected with the waste outlet of by-pass filtration case；The waste outlet of by-pass filtration case directly connects with the first soil chamber；Second break-make
The outlet of valve connects with the first ash can；The water inlet of first water pump connects with the first back flushing tank, delivery port and by-pass filtration
The recoil entrance connection of case；The recoil entrance of by-pass filtration case is located at the edge of the first filter screen；The entrance of 3rd on-off valve with
The filtering outlet connection of by-pass filtration case；The filtering outlet of by-pass filtration case directly connects with the first filter chamber；
Described secondary filtration module includes secondary filtration case, the second motor, belt wheel, hairbrush, the second back flushing tank, the second water
Pump, the second air pump, the second check valve, the 4th on-off valve, the second ash can, the second filter screen and the 5th on-off valve；Described second
Filter screen is fixed in secondary filtration case, and the inner chamber of secondary filtration case is divided into the second soil chamber and the second filter chamber；Two level
Two belt wheels are supported with Rose Box；Two belt wheels are by being driven band connection；One of belt wheel is driven by V belt translation motor；Pass
Dynamic take is fixed with hairbrush；Hairbrush is arranged in the second soil chamber；And the bristle of hairbrush contacts with the second filter screen；Secondary filtration case
Sewage inlet and the 3rd on-off valve outlet；The sewage inlet of secondary filtration case directly connects with the second soil chamber；The
The entrance of two check valves connects with the gas outlet of the second air pump, and outlet connects with the pumping entrance of secondary filtration case；Secondary filtration
The pumping entrance of case is located at the top of secondary filtration case；The second motor is fixed with second soil chamber；The output shaft of second motor
Fixed with the second impeller；The entrance of 4th on-off valve connects with the waste outlet of secondary filtration case；The waste material of secondary filtration case goes out
Mouth directly connects with the second soil chamber；The outlet of 4th on-off valve connects with the second ash can；The water inlet of second water pump and
Two back flushing tanks connect, and delivery port connects with the recoil entrance of secondary filtration case；The recoil entrance of secondary filtration case is located at second
The edge of filter screen；The entrance of 5th on-off valve connects with the filtering outlet of secondary filtration case；The filtering outlet of secondary filtration case
Directly connected with the second filter chamber；
Described three-stage filtration module include cyclone separator, three-stage filtration case, the 6th on-off valve, sump oil case, the first purifying ball,
Second purifying ball and oil-filtering film；Described oil-filtering film is fixed in three-stage filtration case, and the inner chamber of three-stage filtration case is divided into
Containing oil pocket and remove oil pocket；The inner chamber of cyclone separator is made up of cylindrical cavity and round platform chamber；One end of cylindrical cavity is big with round platform chamber
Footpath end is connected；Oblique hole and the outlet of the 5th on-off valve on cylindrical cavity；The other end of cylindrical cavity is as overfall and three
The entrance connection of level Rose Box；The entrance of three-stage filtration case connects with containing oil pocket；The miner diameter end of round platform chamber as underflow opening with it is turbid
The entrance connection of liquid baffle-box；The outlet of turbid baffle-box connects with the entrance of the 3rd water pump；The outlet of 3rd water pump and one-level
The loop head connection of Rose Box；The loop head of by-pass filtration case connects with the first soil chamber；The entrance of 6th on-off valve with
The greasy dirt outlet of three-stage filtration case；The greasy dirt outlet of three-stage filtration case connects with containing oil pocket；The outlet of 6th on-off valve with
Sump oil case connects；The filtering outlet that three-stage filtration case is located at intracavitary of deoiling connects with the entrance of the first purifying ball；First purifying ball
Outlet connected with the entrance of the second purifying ball；The outlet of second purifying ball and water purification flow passage.
A kind of 2. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：The hole of first filter screen is straight
Footpath is 2mm.
A kind of 3. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：The hole of second filter screen is straight
Footpath is 0.3mm.
A kind of 4. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：The both ends difference position of the hairbrush
In two edges of the second filter screen.
A kind of 5. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：Filled out in the first described purifying ball
It is less than 2mm sandstone filled with diameter.
A kind of 6. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：Filled out in the second described purifying ball
Filled with activated carbon.
A kind of 7. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：The first described filter screen is set vertically
Put.
A kind of 8. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：The second described filter screen is set vertically
Put.
A kind of 9. environmentally friendly water conservancy filter according to claim 1, it is characterised in that：Described oil-filtering film level is set
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807384.7U CN206985878U (en) | 2017-07-05 | 2017-07-05 | A kind of environmentally friendly water conservancy filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720807384.7U CN206985878U (en) | 2017-07-05 | 2017-07-05 | A kind of environmentally friendly water conservancy filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206985878U true CN206985878U (en) | 2018-02-09 |
Family
ID=61400923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720807384.7U Expired - Fee Related CN206985878U (en) | 2017-07-05 | 2017-07-05 | A kind of environmentally friendly water conservancy filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206985878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675471A (en) * | 2018-05-21 | 2018-10-19 | 台州鼎拓工业设计有限公司 | A kind of hydraulic engineering filter device |
-
2017
- 2017-07-05 CN CN201720807384.7U patent/CN206985878U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108675471A (en) * | 2018-05-21 | 2018-10-19 | 台州鼎拓工业设计有限公司 | A kind of hydraulic engineering filter device |
| CN108675471B (en) * | 2018-05-21 | 2020-07-31 | 温州冲亚电子科技有限公司 | Hydraulic engineering filter equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20180705 |