CN210150834U - Water treatment regeneration filtration control system - Google Patents

Water treatment regeneration filtration control system Download PDF

Info

Publication number
CN210150834U
CN210150834U CN201920726222.XU CN201920726222U CN210150834U CN 210150834 U CN210150834 U CN 210150834U CN 201920726222 U CN201920726222 U CN 201920726222U CN 210150834 U CN210150834 U CN 210150834U
Authority
CN
China
Prior art keywords
fixed
electromagnetic valve
filtering
water treatment
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920726222.XU
Other languages
Chinese (zh)
Inventor
王科峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANGZHOU XIANGTAI ELECTRICAL APPLIANCES CO Ltd
Original Assignee
HANGZHOU XIANGTAI ELECTRICAL APPLIANCES CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HANGZHOU XIANGTAI ELECTRICAL APPLIANCES CO Ltd filed Critical HANGZHOU XIANGTAI ELECTRICAL APPLIANCES CO Ltd
Priority to CN201920726222.XU priority Critical patent/CN210150834U/en
Application granted granted Critical
Publication of CN210150834U publication Critical patent/CN210150834U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Water Treatment By Sorption (AREA)

Abstract

The utility model provides a water treatment regeneration filtration control system, which comprises a wastewater inlet, a sedimentation mechanism, a filtration mechanism, a water storage tank, a water outlet, a control mechanism, an industrial monitoring display, an electric control cabinet, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve, wherein the sedimentation mechanism, the industrial monitoring display and the control mechanism are arranged, a filter screen filters impurities such as leaves and plastic bags in wastewater, the impurities such as leaves and plastic bags are prevented from entering a water treatment device, the normal operation of the water treatment device is ensured, a suspender is lifted periodically, the impurities in an impurity filtering groove are poured out, a data collector collects data information of a liquid level sensor, a turbidity sensor and a detection device, corresponding electric signals are sent to a controller, the water treatment device is controlled to operate, the automation degree of equipment is improved, and the data information collected by the data collector is transmitted to the industrial monitoring display, and the display is carried out in real time, so that the operating personnel can know the running condition of the water treatment device in time.

Description

Water treatment regeneration filtration control system
Technical Field
The utility model belongs to the technical field of water treatment facilities, especially, relate to a water treatment regeneration filtration control system.
Background
In the open water treatment device, a tower pond filter screen is an indispensable procedure, most of the current water treatment devices adopt single-layer or multi-layer frame type filter screens, fixed net cage type filter screens and various mechanical gratings, and in the production and operation, a pretreatment device is lacked, so that leaves or sheet-shaped objects cannot be effectively prevented from entering the water treatment device, and the normal operation of the water treatment device is influenced.
The invention discloses a filtering device for a water treatment pool, which is disclosed as CN 201516300U and comprises a water conveying tank, wherein barrier gate plates are embedded in the water conveying tank, plate grooves are correspondingly arranged on the walls of two sides of the water conveying tank, more than one barrier gate plate is inserted into the plate grooves, a hanging bracket is vertically arranged on the plate grooves of the two sides, a hoisting machine is arranged on a beam upper seat of the hanging bracket, a sling of the hoisting machine is connected in a hanging ring of the barrier gate plate, and a shifting guide rod of the barrier gate plate is arranged on the inner side of the hanging bracket. But the existing water treatment regeneration filtering device lacks a pretreatment mechanism, can not effectively prevent leaves or sheets from entering the water treatment device, and influences the normal operation of the water treatment device, lacks a control mechanism, has low automation degree, adopts a single filtering mode to carry out filtering operation, and has lower filtering efficiency.
Therefore, it is necessary to develop a water treatment regeneration filtration control system.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a water treatment regeneration filtration control system to solve current water treatment regeneration filter equipment and lack preprocessing mechanism, can not prevent leaf or slice thing to get into water treatment facilities effectively, influence water treatment facilities's normal operating, lack control mechanism, degree of automation is low, adopts single filtration mode to filter the operation, the lower problem of filtration efficiency. A water treatment regeneration filtration control system comprises a wastewater inlet, a sedimentation mechanism, a filtration mechanism, a water storage tank, a water outlet, a control mechanism, an industrial monitoring display, an electric control cabinet, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve, wherein the wastewater inlet is fixed above the left side of the sedimentation mechanism through a bolt; the first electromagnetic valve is fixed on the wastewater inlet through a bolt; the electric control cabinet is fixed at the right end of the front side of the sedimentation mechanism through a bolt; the filtering mechanism is arranged on the right side of the settling mechanism, the upper end of the filtering mechanism is connected with the settling mechanism through a pipeline, and the lower end of the filtering mechanism is connected with the filtering mechanism through a pipeline; the second electromagnetic valve is fixed on a pipeline between the upper end of the filtering mechanism and the settling mechanism through a bolt; the water storage tank is arranged on the right side of the filtering mechanism and is connected with the filtering mechanism through a pipeline; the fourth electromagnetic valve is fixed on a pipeline between the water storage tank and the filtering mechanism through a bolt; the water outlet is welded below the right side of the water storage tank; the control mechanism is fixed on the front side of the water storage tank through a bolt; the industrial monitoring display is fixed above the control mechanism through a bolt; and the third electromagnetic valve is fixed on a pipeline between the lower end of the filtering mechanism and the settling mechanism through a bolt.
The industrial monitoring display is respectively connected with the electric control cabinet and the A/D converter through wires, and is of a G1516 type; the electric control cabinet is connected with commercial power through a wire; the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are respectively connected with the electric control cabinet and the controller through leads, and the model is 2W-160-15.
The sedimentation mechanism comprises a sedimentation tank, a turbidity sensor, a liquid level transmitter, a impurity filtering groove, a suspender and a filter screen, wherein the liquid level transmitter is fixed at the middle position on the right side of the sedimentation tank through a bolt and is respectively connected with an electric control cabinet and a data acquisition unit through wires, and an MIK-P260 type is selected; the turbidity sensor is fixed below the left side in the sedimentation tank through bolts, is respectively connected with the electric control cabinet and the data acquisition unit through wires, and is of an MIK-P260 type; the impurity filtering groove is arranged in the middle of the interior of the sedimentation tank; the two hanger rods are welded above the impurity filtering groove and are lapped above the sedimentation tank; the filter screen is fixed below the inner side of the impurity filtering groove through bolts.
The filtering mechanism comprises a filtering box, a sand layer, a filtering net, an activated carbon layer and a detection device, wherein the sand layer is fixed above the inside of the filtering box through bolts; the filter screen is fixed inside the filter box through bolts and is positioned below the sandstone layer; the activated carbon layer is fixed inside the filter box through bolts and is positioned below the filter screen; the detection device is fixed below the front side of the filter box through bolts and communicated with the inside of the filter box.
The control mechanism comprises a control box, a controller, an A/D converter, a GPRS communicator, a data collector and a storage, wherein the controller is fixed on the left side in the control box through a bolt; the GPRS communicator is fixed on the right side inside the control box through a bolt; the A/D converter is fixed above the inside of the control box through a bolt; the data acquisition unit is fixed below the inside of the control box through a bolt; the storage is fixed below the inside of the control box through bolts and is positioned on the right side of the data acquisition unit.
The controller is respectively connected with the A/D converter and the electric control cabinet through leads; the A/D converter is respectively connected with the GPRS communicator and the electric control cabinet through wires, and an ADC0809CCD type is selected; the GPRS communicator is integrated with an HC-05 slave host; the data acquisition unit is connected with the storage through a data line, and a DAQM-4206 type is selected; the storage is NM-CARD256G type.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a setting of subsiding the mechanism, waste water gets into from waste water entry and subsides the mechanism, and the filter screen filters impurity such as leaf, plastic bag in the waste water, avoids impurity such as leaf, plastic bag to get into water treatment facilities, guarantees water treatment facilities normal operating, regularly mentions the jib, will strain the impurity of miscellaneous inslot and pour out, guarantees filter screen normal operating.
2. The utility model discloses a control mechanism's setting, data collection station gather liquid level changer, and turbidity sensor and detection device's data information according to data information, sends corresponding signal of telecommunication to the controller, controls the operation of water treatment facilities, improve equipment's degree of automation.
3. The utility model discloses a filter mechanism's setting, waste water get into filter mechanism, the small granule in gravel layer and the filter screen filtering waste water, peculiar smell and pigment in the activated carbon layer absorption waste water adopt three kinds of filtration methods to carry out waste water treatment, improve water treatment efficiency.
4. The utility model discloses a setting of industrial monitoring display, data information that data collection station gathered in time conveys the industrial monitoring display on, shows in real time, and the operating condition of water treatment facilities is in time known to the operating personnel of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the settling mechanism of the present invention.
Fig. 3 is a schematic structural diagram of the filtering mechanism of the present invention.
Fig. 4 is a schematic structural diagram of the control mechanism of the present invention.
In the figure:
1-a wastewater inlet, 2-a settling mechanism, 21-a settling tank, 22-a turbidity sensor, 23-a liquid level transmitter, 24-a impurity filtering tank, 25-a suspender, 26-a filter screen, 3-a filtering mechanism, 31-a filter box, 32-a sandstone layer, 33-a filter screen, 34-an activated carbon layer, 35-a detection device, 4-a water storage tank, 5-a water outlet, 6-a control mechanism, 61-a control box, 62-a controller, 63-a/D converter, 64-a GPRS communicator, 65-a data collector, 66-a storage, 7-an industrial monitoring display, 8-an electric control cabinet, 9-a first electromagnetic valve, 10-a second electromagnetic valve, 11-a third electromagnetic valve and 12-a fourth electromagnetic valve.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in figures 1 to 4
The utility model provides a water treatment regeneration filtration control system, which comprises a wastewater inlet 1, a sedimentation mechanism 2, a filtration mechanism 3, a water storage tank 4, a water outlet 5, a control mechanism 6, an industrial monitoring display 7, an electric control cabinet 8, a first electromagnetic valve 9, a second electromagnetic valve 10, a third electromagnetic valve 11 and a fourth electromagnetic valve 12, wherein the wastewater inlet 1 is fixed above the left side of the sedimentation mechanism 2 through bolts; the first electromagnetic valve 9 is fixed on the wastewater inlet 1 through a bolt; the electric control cabinet 8 is fixed at the right end of the front side of the sedimentation mechanism 2 through a bolt; the filtering mechanism 3 is arranged on the right side of the settling mechanism 2, the upper end of the filtering mechanism is connected with the settling mechanism 2 through a pipeline, and the lower end of the filtering mechanism is connected with the filtering mechanism 3 through a pipeline; the second electromagnetic valve 10 is fixed on a pipeline between the upper end of the filtering mechanism 3 and the settling mechanism 2 through a bolt; the water storage tank 4 is arranged on the right side of the filtering mechanism 3 and is connected with the filtering mechanism 3 through a pipeline; the fourth electromagnetic valve 12 is fixed on a pipeline between the water storage tank 4 and the filtering mechanism 3 through a bolt; the water outlet 5 is welded below the right side of the water storage tank 4; the control mechanism 6 is fixed on the front side of the water storage tank 4 through bolts; the industrial monitoring display 7 is fixed above the control mechanism 6 through a bolt; the third electromagnetic valve 11 is fixed on a pipeline between the lower end of the filtering mechanism 3 and the settling mechanism 2 through a bolt.
The industrial monitoring display 7 is respectively connected with the electric control cabinet 8 and the A/D converter 63 through leads, and is of a G1516 type; the electric control cabinet 8 is connected with commercial power through a wire; the first electromagnetic valve 9, the second electromagnetic valve 10, the third electromagnetic valve 11 and the fourth electromagnetic valve 12 are respectively connected with the electric control cabinet 8 and the controller 62 through leads, and the model is 2W-160-15.
The sedimentation mechanism 2 comprises a sedimentation tank 21, a turbidity sensor 22, a liquid level transmitter 23, an impurity filtering groove 24, a suspender 25 and a filter screen 26, wherein the liquid level transmitter 23 is fixed at the middle position of the right side of the sedimentation tank 21 through bolts, and is respectively connected with an electric control cabinet 8 and a data acquisition unit 65 through wires, and an MIK-P260 type is selected; the turbidity sensor 22 is fixed below the left side in the sedimentation tank 21 through bolts, and is respectively connected with the electric control cabinet 8 and the data acquisition unit 65 through wires, and the MIK-P260 type is selected; the impurity filtering groove 24 is arranged at the middle position inside the sedimentation tank 21; the two hanger rods 25 are welded above the impurity filtering groove 24 and are lapped above the sedimentation tank 21; the filter screen 26 is fixed below the inner side of the impurity filtering groove 24 through bolts.
The filtering mechanism 3 comprises a filtering box 31, a sand layer 32, a filtering net 33, an activated carbon layer 34 and a detecting device 35, wherein the sand layer 32 is fixed above the inside of the filtering box 31 through bolts; the filter screen 33 is fixed inside the filter box 31 through bolts and is positioned below the sandstone layer 32; the activated carbon layer 34 is fixed inside the filter box 31 through bolts and is positioned below the filter screen 33; the detection device 35 is fixed below the front side of the filter box 31 through bolts and is communicated with the inside of the filter box 31.
The control mechanism 6 comprises a control box 61, a controller 62, an A/D converter 63, a GPRS communicator 64, a data collector 65 and a storage 66, wherein the controller 62 is fixed on the left side in the control box 61 through bolts; the GPRS communicator 64 is fixed on the right side inside the control box 61 through bolts; the A/D converter 63 is fixed above the inside of the control box 61 through bolts; the data acquisition unit 65 is fixed below the inside of the control box 61 through a bolt; the storage 66 is fixed below the inside of the control box 61 and is located on the right side of the data collector 65 by bolts.
The controller 62 is respectively connected with the A/D converter 63 and the electric control cabinet 8 through leads; the A/D converter 63 is respectively connected with the GPRS communicator 64 and the electric control cabinet 8 through leads, and an ADC0809CCD type is selected; the GPRS communicator 64 selects HC-05 integral slave host; the data acquisition unit 65 is connected with the storage 66 through a data line, and is of a DAQM-4206 type; the storage 66 is of the NM-CARD256G type.
Principle of operation
In the utility model, the electric control cabinet 8 is connected with the mains supply to supply power, wastewater enters the sedimentation mechanism 2 from the wastewater inlet 1, the filter screen 26 filters impurities such as leaves and plastic bags in the wastewater, the impurities such as leaves and plastic bags are prevented from entering the water treatment device, the normal operation of the water treatment device is ensured, the suspender 25 is lifted regularly to pour out the impurities in the impurity filtering groove 24, the normal operation of the filter screen 26 is ensured, when the wastewater enters the filtering mechanism 3, the sand layer 32 and the filter screen 33 filter out tiny particles in the wastewater, the activated carbon layer 34 adsorbs peculiar smell and pigments in the wastewater, three filtering modes are adopted to carry out wastewater treatment, the water treatment efficiency is improved, the data collector 65 collects the data information of the liquid level transmitter 23, the turbidity sensor 22 and the detection device 35, corresponding electric signals are sent to the controller 62 according to the data information, the operation of the water treatment device is controlled, the automation degree of the, the data information collected by the data collector 65 is transmitted to the industrial monitoring display 7 in time and displayed in real time, so that the operating personnel can know the operating condition of the water treatment device in time.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.

Claims (6)

1. A water treatment regeneration filtration control system which characterized in that: the device comprises a wastewater inlet (1), a sedimentation mechanism (2), a filtering mechanism (3), a water storage tank (4), a water outlet (5), a control mechanism (6), an industrial monitoring display (7), an electric control cabinet (8), a first electromagnetic valve (9), a second electromagnetic valve (10), a third electromagnetic valve (11) and a fourth electromagnetic valve (12), wherein the wastewater inlet (1) is fixed above the left side of the sedimentation mechanism (2) through bolts; the first electromagnetic valve (9) is fixed on the wastewater inlet (1) through a bolt; the electric control cabinet (8) is fixed at the right end of the front side of the sedimentation mechanism (2) through a bolt; the filtering mechanism (3) is arranged on the right side of the settling mechanism (2), the upper end of the filtering mechanism is connected with the settling mechanism (2) through a pipeline, and the lower end of the filtering mechanism is connected with the filtering mechanism (3) through a pipeline; the second electromagnetic valve (10) is fixed on a pipeline between the upper end of the filtering mechanism (3) and the settling mechanism (2) through a bolt; the water storage tank (4) is arranged on the right side of the filtering mechanism (3) and is connected with the filtering mechanism (3) through a pipeline; the fourth electromagnetic valve (12) is fixed on a pipeline between the water storage tank (4) and the filtering mechanism (3) through a bolt; the water outlet (5) is welded below the right side of the water storage tank (4); the control mechanism (6) is fixed on the front side of the water storage tank (4) through a bolt; the industrial monitoring display (7) is fixed above the control mechanism (6) through a bolt; and the third electromagnetic valve (11) is fixed on a pipeline between the lower end of the filtering mechanism (3) and the settling mechanism (2) through a bolt.
2. The water treatment regeneration filtration control system of claim 1, wherein: the industrial monitoring display (7) is respectively connected with the electric control cabinet (8) and the A/D converter (63) through wires, and is of a G1516 type; the electric control cabinet (8) is connected with commercial power through a wire; the first electromagnetic valve (9), the second electromagnetic valve (10), the third electromagnetic valve (11) and the fourth electromagnetic valve (12) are respectively connected with the electric control cabinet (8) and the controller (62) through leads, and the model is 2W-160-15.
3. The water treatment regeneration filtration control system of claim 1, wherein: the sedimentation mechanism (2) comprises a sedimentation tank (21), a turbidity sensor (22), a liquid level transmitter (23), a impurity filtering groove (24), a suspender (25) and a filter screen (26), wherein the liquid level transmitter (23) is fixed in the middle of the right side of the sedimentation tank (21) through a bolt, is respectively connected with an electric control cabinet (8) and a data collector (65) through wires and is of an MIK-P260 type; the turbidity sensor (22) is fixed below the left side in the sedimentation tank (21) through bolts, is respectively connected with the electric control cabinet (8) and the data acquisition unit (65) through wires, and is of an MIK-P260 type; the impurity filtering groove (24) is arranged in the middle of the interior of the sedimentation tank (21); the two hanger rods (25) are welded above the impurity filtering groove (24) and are lapped above the sedimentation tank (21); the filter screen (26) is fixed below the inner side of the impurity filtering groove (24) through bolts.
4. The water treatment regeneration filtration control system of claim 1, wherein: the filtering mechanism (3) comprises a filtering box (31), a sandstone layer (32), a filtering net (33), an activated carbon layer (34) and a detecting device (35), wherein the sandstone layer (32) is fixed above the inside of the filtering box (31) through bolts; the filter screen (33) is fixed inside the filter box (31) through bolts and is positioned below the sandstone layer (32); the activated carbon layer (34) is fixed inside the filter box (31) through bolts and is positioned below the filter screen (33); the detection device (35) is fixed below the front side of the filter box (31) through bolts and communicated with the inside of the filter box (31).
5. The water treatment regeneration filtration control system of claim 1, wherein: the control mechanism (6) comprises a control box (61), a controller (62), an A/D converter (63), a GPRS communicator (64), a data collector (65) and a storage (66), wherein the controller (62) is fixed on the left side inside the control box (61) through a bolt; the GPRS communicator (64) is fixed on the right side inside the control box (61) through a bolt; the A/D converter (63) is fixed above the inside of the control box (61) through bolts; the data acquisition unit (65) is fixed below the inside of the control box (61) through a bolt; the storage device (66) is fixed below the inside of the control box (61) through bolts and is positioned on the right side of the data acquisition device (65).
6. The water treatment regeneration filtration control system of claim 5, wherein: the controller (62) is respectively connected with the A/D converter (63) and the electric control cabinet (8) through leads; the A/D converter (63) is respectively connected with the GPRS communicator (64) and the electric control cabinet (8) through leads, and an ADC0809CCD type is selected; the GPRS communicator (64) is integrated with the HC-05 slave host; the data collector (65) is connected with the storage (66) through a data line, and is of a DAQM-4206 type; the storage (66) is of NM-CARD256G type.
CN201920726222.XU 2019-05-21 2019-05-21 Water treatment regeneration filtration control system Active CN210150834U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920726222.XU CN210150834U (en) 2019-05-21 2019-05-21 Water treatment regeneration filtration control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920726222.XU CN210150834U (en) 2019-05-21 2019-05-21 Water treatment regeneration filtration control system

Publications (1)

Publication Number Publication Date
CN210150834U true CN210150834U (en) 2020-03-17

Family

ID=69759696

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920726222.XU Active CN210150834U (en) 2019-05-21 2019-05-21 Water treatment regeneration filtration control system

Country Status (1)

Country Link
CN (1) CN210150834U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110002626A (en) * 2019-05-21 2019-07-12 杭州翔泰电器有限公司 A kind of water process regeneration filtering control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110002626A (en) * 2019-05-21 2019-07-12 杭州翔泰电器有限公司 A kind of water process regeneration filtering control system
CN110002626B (en) * 2019-05-21 2024-05-10 杭州翔泰电器有限公司 Water treatment regeneration filtration control system

Similar Documents

Publication Publication Date Title
CN108867594A (en) A kind of Multifunctional river channel early warning dam
CN210150834U (en) Water treatment regeneration filtration control system
CN110002626B (en) Water treatment regeneration filtration control system
CN106277444A (en) A kind of country sewage recycling processing system with remotely monitoring
CN109381911A (en) Equipment is collected by filtration in a kind of liftable Intelligent rotary formula algae
CN209259814U (en) Sewage-treatment plant is used in a kind of printing and dyeing of textile fabric
CN204251378U (en) A kind of pulsed-bed absorbent charcoal adsorber
CN106884435A (en) Foundation pit dewatering and recharging intelligent control system with touch display panel
CN203060934U (en) Filter cloth turntable filtering equipment
CN205442881U (en) Improve sewage purification processing device of structure
CN105417832B (en) A kind of integrated intelligence oilfield produced water processing unit and method
CN102921208B (en) Efficient continuous type reverse-particle-size filter device and technology
CN103480187A (en) Power-free rapid backwashing filter
CN103394222A (en) Drum microfiltration machine for papermaking sewage treatment, and filtering method thereof
CN108579166A (en) The self-cleaning filter system and control method of new ship are cleaned based on filtering river
CN209428248U (en) A kind of sewage treatment on-Line Monitor Device
CN209885366U (en) Liftable intelligent rotary algae filtering and collecting equipment
CN111362469B (en) Mining water purification treatment system
CN107737483A (en) A kind of industrial water centralized collection processing system
CN204275631U (en) A kind of rain sewage full-automatic filter
CN204097232U (en) A kind of filtration unit of water purifier
CN208218549U (en) A kind of medical clinic sewage treatment purification system
CN203715415U (en) Advanced treatment system of mine water
CN208583061U (en) Self-cleaning filter system based on filtering river cleaning new ship
CN209110709U (en) A kind of automatically cleaning central water outlet system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant