CN112121518A - Endogenous backwashing modular filtering device capable of automatically regenerating and backwashing regeneration method - Google Patents
Endogenous backwashing modular filtering device capable of automatically regenerating and backwashing regeneration method Download PDFInfo
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- CN112121518A CN112121518A CN202011125904.9A CN202011125904A CN112121518A CN 112121518 A CN112121518 A CN 112121518A CN 202011125904 A CN202011125904 A CN 202011125904A CN 112121518 A CN112121518 A CN 112121518A
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- 238000011069 regeneration method Methods 0.000 title claims abstract description 115
- 238000011001 backwashing Methods 0.000 title claims abstract description 103
- 238000001914 filtration Methods 0.000 title claims abstract description 64
- 230000001172 regenerating effect Effects 0.000 title description 6
- 230000008929 regeneration Effects 0.000 claims abstract description 107
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 55
- 238000000746 purification Methods 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000003814 drug Substances 0.000 claims description 8
- 239000002699 waste material Substances 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 238000000338 in vitro Methods 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an automatic-regeneration endogenous backwashing modular filter device and a backwashing regeneration method. When the differential pressure of two sections of the filtering units is overhigh or set time, the filter automatically and sequentially carries out backwashing purification and regeneration on each group of modular filtering units, and meanwhile, the filtering units normally produce water, so that the continuous operation and the output of equipment are ensured; the filter element type filter can be automatically cleaned and purified by configuring regenerated liquid aiming at different pollutants of the filter unit, the conditions that the filter element type filter cannot be automatically cleaned when the filtering speed is reduced or the differential pressure is too high, the filter element needs to be cleaned in vitro or frequently replaced, and the service life of the filter element is short are avoided, the operation and maintenance cost of the equipment is reduced, the continuous operation of the equipment is ensured, and the filter element type filter can be widely applied to various water treatment systems.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of water treatment, and relates to an automatic-regeneration internal source backwashing modular filtering device and a backwashing regeneration method.
[ background of the invention ]
The filter element type filter can remove impurities such as particles in water, and is widely applied to various water treatment systems such as a boiler water supply system and a condensate fine treatment system. The filter element type filter commonly used at present is a pressure type filter, namely a certain number of large-flow high-precision filter elements are installed in a pressure container tank, but the condition of pollution and blockage is common, all the filter elements need to be replaced or cleaned in vitro when the filter elements fail, and automatic online backwashing or regeneration cannot be realized. The endogenous backwashing modular filter is improved aiming at the problem that a pressure type filter is easy to be polluted and blocked, the filter element is in modular combination, the endogenous online backwashing can be carried out on the filter element, the pollution and blocking frequency of the filter element is reduced, the service life of the filter element is prolonged, pollutants such as organic matters and the like can not be purified through washing, the filter element still needs to be regenerated or replaced in vitro when the filter element is invalid, the automatic online regeneration can not be realized, and the continuous operation of the filter and subsequent equipment can not be ensured. In order to solve the above problems, it is necessary to develop an automatic regeneration endogenous backwashing modular filter device.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides an automatic-regeneration internal source backwashing modular filtering device and a backwashing regeneration method, the filter overcomes the defects that the traditional filter element type filter cannot be automatically regenerated on line, the filter element needs to be frequently replaced and the filter cannot continuously run, and is suitable for various water treatment systems.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
an automatically regenerable endogenous backwash modular filter device comprising:
the system comprises an endogenous backwashing modular filter, a regeneration device and a control system, wherein the endogenous backwashing modular filter comprises a plurality of filter units, and each filter unit is connected with the regeneration device through a regeneration medicine adding pipeline; the water inlet end of each filtering unit is connected with a water inlet main pipe, and the water outlet end of each filtering unit is converged on a water production main pipe;
and the control system controls the internal source backwashing modular filter to carry out backwashing purification or regeneration according to the pressure condition at the two ends of each filtering unit or a built-in timing program.
The invention further improves the following steps:
each filtering unit comprises an automatic water inlet valve, a filter element and an automatic water producing valve which are sequentially arranged from a water inlet end to a water outlet end.
And the pipeline between the water inlet valve of each filtering unit and the filter element is connected with an automatic backwashing drainage valve.
The filter element of each filter unit is communicated with a regeneration medicine feeding pipeline through an automatic regeneration liquid inlet valve.
And two ends of each filtering unit are respectively provided with a pressure measuring device, and the pressure measuring devices are connected with a control system.
The top of each filtering unit is provided with an automatic filter element exhaust valve, and the bottom of each filtering unit is provided with an automatic filter element exhaust valve.
The filter unit is provided with N group, N is according to the filter unit quantity that intake water volume and filtration rate calculation need be equipped with, and N gets positive integer, then:
in the formula, QInflow waterRepresents the amount of inlet water, m3/h；QSheetRepresenting the amount of water treated by a single group of filter units, m3/h。
The regeneration device comprises a regeneration liquid tank body, wherein a medicine feeding port and a water inlet are formed in the top of the regeneration liquid tank body, an overflow port is formed in the side face of the top of the regeneration liquid tank body, and a liquid outlet and a sewage draining outlet are formed in the bottom of the regeneration liquid tank body.
The volume of the regeneration liquid tank body is the same as that of the filter element.
An automatically regenerable endogenous backwash regeneration method, comprising the steps of:
when the control system monitors that the pressure difference between two ends of a certain filter element is more than or equal to 0.3MPa, the control system enters a backwashing mode of a single group of filter units: closing the automatic water inlet valve of the group of filter units, opening the corresponding automatic backwashing water discharge valve, enabling produced water to enter the filter element of the group of filter units for backwashing purification, and finishing backwashing purification of the single group of filter units according to preset backwashing purification time;
when the control system monitors that the preset timing backwashing condition is met, the backwashing mode is entered, and single-group backwashing is automatically carried out on the N +1 groups of filter units in sequence: closing the automatic water inlet valve of the first group of filtering units, opening the corresponding automatic backwashing water discharge valve, enabling the produced water to automatically enter the filter element of the group of filtering units for backwashing purification, and finishing backwashing purification of the group of filtering units according to preset backwashing purification time; after backwashing of the first group of filter elements is finished, opening automatic water inlet valves of the first group of filter elements, closing automatic water inlet valves of the second group of filter elements, backwashing and purifying the filter elements of the second group of filter elements, and the like until the (N + 1) th group of filter elements finish backwashing and purifying;
when the control system monitors that the pressure difference between two ends of a certain filter element is more than or equal to 0.3MPa after backwashing purification, the regeneration mode of a single group of filter units is entered; closing an automatic water inlet valve, an automatic water production valve and an automatic backwashing water discharge valve of the group of filter units, opening an automatic filter element exhaust valve and an automatic filter element exhaust valve, starting a regeneration device, opening a corresponding automatic regeneration liquid inlet valve, and closing an automatic filter element exhaust valve; when the regeneration liquid in the regeneration device is completely emptied and the filter element is filled with the regeneration liquid, closing the corresponding automatic regeneration liquid inlet valve; according to the preset soaking time, after the regeneration liquid is fully soaked in the filter element for reaction, opening the corresponding automatic emptying valve of the filter element, completely emptying the regenerated waste liquid after reaction, starting a backwashing mode of a single group of filter units, and backwashing and purifying the group of filter elements;
when the control system monitors that the backwashing purified water meets the preset periodic regeneration condition, the equipment enters a regeneration mode and automatically performs single-group regeneration on the N groups of filtering units in sequence; closing an automatic water inlet valve, an automatic water production valve and an automatic backwashing water discharge valve of the first group of filtering units, opening an automatic filter element exhaust valve and an automatic filter element exhaust valve, starting a regeneration device, opening a corresponding automatic regeneration liquid inlet valve, and closing an automatic filter element exhaust valve; when the regeneration liquid in the regeneration device is completely emptied and the filter element is filled with the regeneration liquid, closing the corresponding automatic regeneration liquid inlet valve; according to the preset soaking time, after the regeneration liquid is fully soaked in the filter element for reaction, opening the corresponding automatic emptying valve of the filter element, completely emptying the regenerated waste liquid after reaction, starting a backwashing mode of the single group of filter units, and backwashing and purifying the first group of filter elements; after the regeneration of the first group of filter elements is finished, opening an automatic water inlet valve of the first group of filter elements, closing an automatic water inlet valve, an automatic water production valve and an automatic backwashing water discharge valve of the second group of filter elements, opening an automatic filter element exhaust valve and an automatic filter element exhaust valve, starting a regeneration device, opening a corresponding automatic regeneration liquid inlet valve, closing an automatic filter element exhaust valve, performing regeneration treatment on the filter elements of the second group of filter elements, and repeating the steps until the Nth group of filter elements finish regeneration.
Compared with the prior art, the invention has the following beneficial effects:
the invention adopts a modular N-group filter unit combination mode, N is the number of filter elements required to be equipped according to the water inflow amount and the filter speed, single-group backwashing or regeneration is carried out on N groups of filter units in sequence during backwashing or regeneration of the equipment, and meanwhile, the other filter units normally produce water, thereby ensuring the output during running of the equipment and backwashing regeneration.
The invention can synchronously realize automatic backwashing and automatic regeneration of the filtering unit when the filter produces water, ensures the continuous operation of the equipment, periodically and automatically realizes backwashing purification and regeneration of the modular filtering unit, avoids the problem that the filtering core of the filter needs to be replaced or cleaned in vitro when the filtering core of the filter fails, reduces the operation and maintenance cost of the equipment, and solves the defect that the filter cannot be continuously put into production and use when the filtering speed of the filter is reduced or the differential pressure is too high.
The regeneration device can be used for preparing regeneration liquid aiming at different pollutant types of the filtering unit and effectively regenerating and purifying the invalid filter element, for example, iron pollution and carbonate crystallization pollution can be cleaned by acidic regeneration liquid, and pollution caused by organic matters and organisms can be cleaned by alkaline regeneration liquid.
The invention can be used as a security filter for a boiler feedwater system, can also be used as a pre-filter for a condensate fine treatment system, can also be used for removing biological larvae and the like in a seawater sampling system, is suitable for various water treatment systems, and has wide application prospect.
[ description of the drawings ]
In order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Wherein, 1-endogenous backwashing modular filter; 2-a regeneration device; 3-a control system; 4-automatic regeneration of the liquid inlet valve; 5-automatic exhaust valve of filter element; 6-automatic emptying valve of filter element.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
referring to the figure, an automatically regenerable endogenous backwash modular filter device comprises an endogenous backwash modular filter 1, a regeneration device 2 and a control system 3; regenerating unit 2 and endogenous backwash modular filter 1 are connected through regeneration medicine pipeline, all set up automatic regeneration feed liquor valve 4 on every filter unit's of group regeneration feed liquor branch pipe, and every filter unit top of group all sets up filter core automatic exhaust valve 5, and the bottom sets up filter core automatic emptying valve 6. The filtering unit of the endogenous backwashing modular filter 1 comprises a shell, a filter element and a matched valve pipeline, and N groups of modular filtering units (N is the quantity of the filtering units required to be equipped according to the inflow and the filtering speed) are arranged. Regenerating unit 2 can be according to the different pollutant kinds configuration regeneration liquid of filter unit, sets up and throws medicine mouth, water inlet, liquid outlet, overflow mouth and drain, and its volume equals with 1 filter unit shell volume of group just, and the liquid outlet links to each other with endogenous backwash modular filter 1 regeneration feed liquor branch pipe through regeneration medicine pipeline. The control system 3 can collect the running time and the pressure difference between two ends of the modularized filtering unit to realize the automatic backwashing purification and regeneration of the filtering unit.
The principle of the invention is as follows:
the invention is provided with N groups of modularized filtering units (N is the quantity of the filtering units required to be equipped according to the inflow water quantity and the filtering speed). The incoming water automatically enters the filter through the water inlet main pipe, and filtered water is collected to the water producing main pipe through the water outlet branch pipes respectively after passing through the modular filtering unit. When the equipment normally operates, the N groups of modular filtering units normally filter the automatically produced water;
when the control system monitors that the differential pressure of the equipment is too large (not less than 0.3MPa and can be adjusted according to the actual running condition) or according to a timing backwashing program set by the control system, the equipment enters a backwashing mode, and single-group backwashing is sequentially and automatically carried out on the N +1 groups of filtering units: the automatic water inlet valve of the group of filter units is closed, the corresponding automatic backwashing water discharge valve is opened, and the filter produced water can automatically enter the group of filter units for backwashing purification under the action of the pressure difference, so that the automatic online internal backwashing purification of the filter elements is realized.
When the control system still monitors that the differential pressure of the equipment is too large (more than or equal to 0.3MPa and can be adjusted according to the actual running condition) after backwashing purification or according to a regular regeneration program set by the control system, the equipment enters a regeneration mode, and single-group regeneration is sequentially and automatically carried out on the N +1 groups of filtering units: closing an automatic water inlet valve, an automatic water production valve and an automatic backwashing water discharge valve of the group of filter units, opening an automatic filter element exhaust valve and an automatic filter element exhaust valve, starting a regeneration device, opening a corresponding automatic regeneration liquid inlet valve, and closing an automatic filter element exhaust valve; when the regeneration liquid in the regeneration device is completely emptied and the whole filter element is filled with the regeneration liquid, closing the corresponding automatic regeneration liquid inlet valve; and according to the time set by the control system, after the filter elements are fully soaked and reacted by the regenerated liquid, opening the corresponding automatic emptying valve of the filter element, completely emptying the regenerated waste liquid after reaction, and starting a backwashing program to carry out backwashing purification on the group of filter elements.
Through the steps, the equipment can periodically and automatically realize backwashing purification and regeneration of the filter unit under the continuous operation state.
The working process of the invention is as follows:
when the equipment is put into operation, the control system 3 automatically opens the internal source backwashing modular filter 1, opens the automatic water inlet valve and the automatic water production valve of each group of filter units, and closes the automatic backwashing drainage valves of all the filter units. The water enters from the water inlet main pipe, is uniformly distributed by the water distribution branch pipes and then enters the filtering unit for filtering, and the water outlet is collected by the water outlet branch pipe and then is discharged from the water outlet main pipe. During the operation of the equipment, when the differential pressure at the two ends of the filtering units is overhigh, the automatic water inlet valves of the first group of filtering units which are put into operation are closed, the automatic backwashing water discharge valves of the first group of filtering units are opened, the first group of filtering units are automatically backwashed and purified, the second group of filtering units are backwashed after the backwashing of the first group of filtering units is completed, the backwashing is sequentially carried out until the backwashing of the Nth group of filtering units is completed, and the normal differential pressure of the filter is recovered. The backwashing time of each group of filtering units can be set according to the actual situation. When the pressure difference of the equipment is still monitored to be larger than or equal to 0.3MPa after backwashing purification or according to a regular regeneration program set by a control system, namely an automatic water inlet valve, an automatic water production valve and an automatic backwashing drain valve of the first group of filter units which are put into operation are closed, an automatic filter element exhaust valve and an automatic filter element exhaust valve are opened, and the regeneration unit 2 is started; the volume of the regenerated liquid in the regeneration device is just equal to the volume of the shell of a single filter element, an automatic regeneration liquid inlet valve of a first group of filter units is opened, an automatic filter element emptying valve is closed, all the regenerated liquid is filled into the shell of the first group of filter units, the first group of filter units are subjected to automatic soaking regeneration, after full reaction, the automatic filter element emptying valve of the first group of filter units is opened to empty the regenerated waste liquid, and then the first group of filter elements are backwashed; and after the regeneration of the first group of filtering units is finished, the second group of filtering units are regenerated, and the regeneration is sequentially carried out until the regeneration of the Nth group of filtering units is finished. The filter capable of automatically backwashing and regenerating ensures the normal output of the equipment, does not need to be externally connected with a backwashing water source, does not need to integrally quit operation during backwashing and regeneration, and realizes the continuous operation of the system.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automatically regenerable endogenous backwash modular filter device, comprising:
the system comprises an endogenous backwashing modular filter (1), wherein the endogenous backwashing modular filter (1) comprises a plurality of filter units, and each filter unit is connected with a regeneration device (2) through a regeneration medicine adding pipeline; the water inlet end of each filtering unit is connected with a water inlet main pipe, and the water outlet end of each filtering unit is converged on a water production main pipe;
and the control system (3) controls the endogenous backwashing modular filter (1) to carry out backwashing purification or regeneration according to the pressure conditions at the two ends of each filtering unit or a built-in timing program.
2. The automatically regenerable endogenous backwash modular filter device of claim 1, wherein each filter unit comprises an automatic water inlet valve, a filter element, and an automatic water production valve arranged in sequence from a water inlet end to a water outlet end.
3. The automatically regenerable endogenous backwash modular filter device of claim 2, wherein an automatic backwash drain valve is connected to the conduit between the inlet valve and the filter element of each filter unit.
4. An automatically regenerable endogenous backwash modular filter device according to claim 2, wherein the filter element of each filter unit is in communication with a regeneration and dosing line through an automatically regenerable liquid inlet valve (4).
5. An automatically regenerable endogenous backwash modular filter device according to claim 2, wherein pressure measuring devices are respectively arranged at both ends of each filter unit, and the pressure measuring devices are connected with a control system (3).
6. An automatically regenerable endogenous backwash modular filter device according to claim 2, wherein the top of each filter unit is provided with a cartridge automatic exhaust valve (5) respectively, and the bottom of each filter unit is provided with a cartridge automatic exhaust valve (6) respectively.
7. An automatically regenerable endogenous backwashing modular filter device according to any one of claims 1 to 5, wherein the filter units are provided with N groups, wherein N is the number of filter units to be equipped according to the inflow and the filtration rate, and N is a positive integer, then:
in the formula, QInflow waterRepresents the amount of inlet water, m3/h；QSheetRepresenting the amount of water treated by a single group of filter units, m3/h。
8. The automatic renewable endogenous backwashing modular filter device of claim 2 or 4, wherein the regeneration device (2) comprises a regeneration liquid tank, the top of which is provided with a drug feeding port and a water inlet, the top side is provided with an overflow port, and the bottom is provided with a liquid outlet and a sewage outlet.
9. An automatically regenerable endogenous backwash modular filter device as claimed in claim 8, wherein the regeneration liquid tank has the same volume as the filter element.
10. An automatically regenerable endogenous backwash regeneration method using the filter device of any one of claims 2-9, comprising the steps of:
when the control system (3) monitors that the pressure difference between two ends of a certain filter element is more than or equal to 0.3MPa, the backwashing mode of a single group of filter units is entered: closing the automatic water inlet valve of the group of filter units, opening the corresponding automatic backwashing water discharge valve, enabling produced water to enter the filter element of the group of filter units for backwashing purification, and finishing backwashing purification of the single group of filter units according to preset backwashing purification time;
when the control system (3) monitors that the preset timing backwashing condition is met, the backwashing mode is started, and single-group backwashing is automatically performed on the N +1 groups of filtering units in sequence: closing the automatic water inlet valve of the first group of filtering units, opening the corresponding automatic backwashing water discharge valve, enabling the produced water to automatically enter the filter element of the group of filtering units for backwashing purification, and finishing backwashing purification of the group of filtering units according to preset backwashing purification time; after backwashing of the first group of filter elements is finished, opening automatic water inlet valves of the first group of filter elements, closing automatic water inlet valves of the second group of filter elements, backwashing and purifying the filter elements of the second group of filter elements, and the like until the (N + 1) th group of filter elements finish backwashing and purifying;
when the control system (3) monitors that the pressure difference between two ends of a certain filter element is more than or equal to 0.3MPa after backwashing purification, the regeneration mode of a single-group filter unit is entered; closing an automatic water inlet valve, an automatic water production valve and an automatic backwashing water discharge valve of the group of filter units, opening an automatic filter element exhaust valve and an automatic filter element exhaust valve, starting a regeneration device, opening a corresponding automatic regeneration liquid inlet valve, and closing an automatic filter element exhaust valve; when the regeneration liquid in the regeneration device is completely emptied and the filter element is filled with the regeneration liquid, closing the corresponding automatic regeneration liquid inlet valve; according to the preset soaking time, after the regeneration liquid is fully soaked in the filter element for reaction, opening the corresponding automatic emptying valve of the filter element, completely emptying the regenerated waste liquid after reaction, starting a backwashing mode of a single group of filter units, and backwashing and purifying the group of filter elements;
when the control system (3) monitors that the preset periodic regeneration condition is met after backwashing purification, the equipment enters a regeneration mode, and single-group regeneration is sequentially and automatically carried out on N groups of filtering units; closing an automatic water inlet valve, an automatic water production valve and an automatic backwashing water discharge valve of the first group of filtering units, opening an automatic filter element exhaust valve and an automatic filter element exhaust valve, starting a regeneration device, opening a corresponding automatic regeneration liquid inlet valve, and closing an automatic filter element exhaust valve; when the regeneration liquid in the regeneration device is completely emptied and the filter element is filled with the regeneration liquid, closing the corresponding automatic regeneration liquid inlet valve; according to the preset soaking time, after the regeneration liquid is fully soaked in the filter element for reaction, opening the corresponding automatic emptying valve of the filter element, completely emptying the regenerated waste liquid after reaction, starting a backwashing mode of the single group of filter units, and backwashing and purifying the first group of filter elements; after the regeneration of the first group of filter elements is finished, opening an automatic water inlet valve of the first group of filter elements, closing an automatic water inlet valve, an automatic water production valve and an automatic backwashing water discharge valve of the second group of filter elements, opening an automatic filter element exhaust valve and an automatic filter element exhaust valve, starting a regeneration device, opening a corresponding automatic regeneration liquid inlet valve, closing an automatic filter element exhaust valve, performing regeneration treatment on the filter elements of the second group of filter elements, and repeating the steps until the Nth group of filter elements finish regeneration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011125904.9A CN112121518A (en) | 2020-10-20 | 2020-10-20 | Endogenous backwashing modular filtering device capable of automatically regenerating and backwashing regeneration method |
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| CN202011125904.9A CN112121518A (en) | 2020-10-20 | 2020-10-20 | Endogenous backwashing modular filtering device capable of automatically regenerating and backwashing regeneration method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116272928A (en) * | 2023-03-27 | 2023-06-23 | 包头钢铁（集团）有限责任公司 | Method for regenerating active carbon filter |
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2020
- 2020-10-20 CN CN202011125904.9A patent/CN112121518A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116272928A (en) * | 2023-03-27 | 2023-06-23 | 包头钢铁（集团）有限责任公司 | Method for regenerating active carbon filter |
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