CN112909358A - Virtual group control equipment for control of formation system in lead-acid storage battery - Google Patents

Virtual group control equipment for control of formation system in lead-acid storage battery Download PDF

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Publication number
CN112909358A
CN112909358A CN202110077527.4A CN202110077527A CN112909358A CN 112909358 A CN112909358 A CN 112909358A CN 202110077527 A CN202110077527 A CN 202110077527A CN 112909358 A CN112909358 A CN 112909358A
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CN
China
Prior art keywords
flowmeter
box
lead
fixedly connected
central shaft
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Pending
Application number
CN202110077527.4A
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Chinese (zh)
Inventor
沈攀
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Wuhan Bixin Technology Co ltd
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Wuhan Bixin Technology Co ltd
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Priority to CN202110077527.4A priority Critical patent/CN112909358A/en
Publication of CN112909358A publication Critical patent/CN112909358A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285Testing apparatus
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/06Lead-acid accumulators
    • H01M10/12Construction or manufacture
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • H01M10/446Initial charging measures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a lead-acid storage battery container formation system control virtualization group control device which comprises a main device box, wherein a detection communication box, a flowmeter box and a reducer box are respectively arranged in the main device box, and a flowmeter is arranged in the flowmeter box; the central shaft is arranged in the center of the flowmeter, a blade base is fixedly connected to the outer side of the part, located in the flowmeter, of the central shaft, blades are fixedly connected to the outer side of the blade base, a medicament inlet is formed in the left end of the flowmeter, a medicament outlet is formed in the right end of the flowmeter, the medicament inlet is connected with a connecting pipe opening, and the connecting pipe opening penetrates through the side wall of the main equipment box and extends out of the main equipment box; the central shaft penetrates through the shells on the two sides of the flowmeter, and the left end of the central shaft is connected with a rotor of the speed measuring motor through a gear set; the scheme is simple in structure, can carry out group control on the formation system in the lead-acid storage battery, reduces the yield of defective products and has popularization value.

Description

Virtual group control equipment for control of formation system in lead-acid storage battery
Technical Field
The invention relates to the field of formation systems in storage batteries, in particular to a control virtualization group control device for a formation system in a lead-acid storage battery.
Background
A lead-acid battery is a storage battery with electrodes mainly made of lead and its oxides and electrolyte solution of sulfuric acid solution. In the discharge state of the lead-acid battery, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; in a charged state, the main components of the positive electrode and the negative electrode are lead sulfate. Lead acid batteries have been developed in technology and are becoming widely used chemical power sources. Valve-controlled batteries, gel batteries and the like have become important basic industries in national economic development, and are core components of large-scale reserve power supplies such as backup power supplies, power system peak regulation energy storage power supplies, internal combustion engine energy storage power supplies and the like, and the development of the lead storage battery industry has important influence on the industries matched with the lead storage battery industry. The formation of the battery is a process of changing the lead oxide of the positive plate into lead dioxide and the lead oxide of the negative plate into spongy metallic lead. The plate formation method of the storage battery comprises the following steps: the method is characterized in that a polar plate is formed in a forming groove; battery container formation; the method is characterized in that formation is carried out in a battery.
At present, the lead-acid storage battery container formation system has the following defects: 1. when the internal formation process of the lead-acid storage battery is implemented, the use amount of a sulfuric acid solution is inconvenient to accurately master; 2. the real-time conditions of a plurality of container formation devices are inconvenient to implement and monitor; 3. when the pressure of the equipment is unstable, the sulfuric acid solution flows into the internal formation equipment unstably, so that the electrode formation is not uniform; 4. when the sulfuric acid solution flows in too fast, the feedback of the flow meter is inaccurate, and a defective product is generated.
Disclosure of Invention
The invention aims to provide a lead-acid storage battery container formation system control virtualization group control device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a lead-acid storage battery container formation system control virtualization group control device comprises a main device box, wherein a detection communication box, a flowmeter box and a reducer box are respectively arranged in the main device box, and a flowmeter is arranged in the flowmeter box;
the central shaft is arranged in the center of the flowmeter, a blade base is fixedly connected to the outer side of the part, located in the flowmeter, of the central shaft, blades are fixedly connected to the outer side of the blade base, a medicament inlet is formed in the left end of the flowmeter, a medicament outlet is formed in the right end of the flowmeter, the medicament inlet is connected with a connecting pipe opening, and the connecting pipe opening penetrates through the side wall of the main equipment box and extends out of the main equipment box;
the central shaft penetrates through the shells on the two sides of the flowmeter, and the left end of the central shaft is connected with a rotor of the speed measuring motor through a gear set;
the medicament outlet is connected with a butt joint at the upper end of the anti-impact device through a pipeline, the bottom of the anti-impact device is provided with a chassis, the upper side of the chassis is provided with anti-impact fins, the center of the chassis is provided with a shunting cone, and the outer side edge of the shunting cone is fixedly connected with shunting blades;
the utility model discloses a friction device, including reduction gear case, center pin, reset spring, friction head, friction ring, the inner wall of reduction gear corresponds friction head and is provided with the friction ring, the right side end of center pin runs through to the center of reduction gear, and the center pin is located the part outside fixedly connected with friction device of reduction gear, and friction device includes inside slider, and the outside end and the movable rod fixed connection of slider, the outside of movable rod have cup jointed reset spring, and the tip of movable rod has cup jointed the friction head.
Preferably, the bottom is provided with power module in the detection communication box, detects the communication box middle part and sets up the tacho motor, and the upper portion of detecting the communication box sets up communication module, power module and communication module electric connection, tacho motor's electrical output end and communication module electric connection.
Preferably, the connecting pipe orifice comprises a connecting flange, the connecting flange is fixedly connected with the conical pipe, the outer side edge of the conical pipe is fixedly connected with an anti-slip ring, and the end part of the conical pipe is fixedly connected with the pipe orifice.
Preferably, impingement unit's casing and impingement fin's upper end welded fastening, impingement fin's bottom and chassis welded fastening, impingement fin is the centripetal form and arranges, and impingement fin's side is fixed with the subfin, the reposition of redundant personnel centrum is conical, and the reposition of redundant personnel centrum is located the below to the interface, splitter blade is helical blade.
Preferably, the end of the movable rod and the inner side wall of the friction head are correspondingly provided with a groove, and a locking snap ring is embedded in the groove.
Compared with the prior art, the invention has the beneficial effects that: 1. the addition amount of the sulfuric acid solution can be accurately mastered by adding the flow meter, and data detected by the flow meter is transmitted to a master control computer through the communication module, so that an operator can conveniently master real-time data; 2. the scheme can control data of a plurality of devices simultaneously; 3. by adding the anti-scouring device, the sulfuric acid solution can be slowly shunted, a certain fixed position of the container formation equipment is prevented from being scoured, and the phenomenon of nonuniform container formation of the electrode can also be prevented; 4. this scheme is through adding the reduction gear, can slow down when sulphuric acid solution inflow speed is too fast to prevent the precision decline problem of flowmeter. To sum up, this scheme simple structure can become the system and carry out group control in the lead acid battery internalization to reduce the production rate of defective products, have spreading value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the structure of the present invention;
FIG. 3 is a cross-sectional view of the flow meter;
FIG. 4 is a cross-sectional view of the impingement prevention device;
FIG. 5 is a top view of the interior of the impingement unit;
FIG. 6 is a schematic view of the connecting nozzle structure;
FIG. 7 is a schematic view of the internal structure of the reducer;
fig. 8 is a schematic view of the internal structure of the friction device.
In the figure: 1 main equipment box, 2 detect the communication case, 3 flowmeter case, 4 reduction gear case, 5 speed motor, 6 communication module, 7 flowmeters, 8 center pins, 9 blade bases, 10 blades, 11 medicament entry, 12 connecting pipe mouths, 13 medicament export, 14 anti-shock mounting, 15 to the interface, 16 chassis, 17 anti-shock fin, 18 reposition of redundant personnel centrum, 19 reposition of redundant personnel blade, 20 reduction gear, 21 friction device, 22 sliders, 23 movable rod, 24 reset spring, 25 friction head, 26 locking snap ring, 27 friction ring, 28 flange, 29 taper pipe, 30 anti-slip ring, 31 the mouth of pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a lead-acid storage battery container formation system control virtualization group control device comprises a main device box 1, wherein a detection communication box 2, a flowmeter box 3 and a reducer box 4 are respectively arranged in the main device box 1, and a flowmeter 7 is arranged in the flowmeter box 3;
a central shaft 8 is arranged in the center of the flowmeter 7, a blade base 9 is fixedly connected to the outer side of the part, located in the flowmeter 7, of the central shaft 8, blades 10 are fixedly connected to the outer side of the blade base 9, a medicament inlet 11 is arranged at the left side end of the flowmeter 7, a medicament outlet 13 is arranged at the right side end of the flowmeter 7, the medicament inlet 11 is connected with a connecting pipe orifice 12, and the connecting pipe orifice 12 penetrates through the side wall of the main equipment box 1 and extends out of the main equipment box 1;
the central shaft 8 penetrates through the shells on the two sides of the flowmeter 7, and the left end of the central shaft 8 is connected with the rotor of the speed measuring motor 5 through a gear set; the central shaft 8 penetrates through the shell on both sides of the flowmeter 7 and is subjected to leakage-proof treatment by adopting an anti-corrosion lantern ring.
The medicament outlet 13 is connected with a butt joint 15 at the upper end of the anti-impact device 14 through a pipeline, a chassis 16 is arranged at the bottom of the anti-impact device 14, anti-impact fins 17 are arranged on the upper side of the chassis 16, a shunting cone 18 is arranged at the center of the chassis 16, and shunting blades 19 are fixedly connected to the outer side edge of the shunting cone 18.
The reducer box 4 is internally provided with a reducer 20, the right side end of the central shaft 8 penetrates through the center of the reducer 20, the outer side of the part of the central shaft 8 located in the reducer 20 is fixedly connected with a friction device 21, the friction device 21 comprises an internal slide block 22, the outer side end of the slide block 22 is fixedly connected with a movable rod 23, the outer side of the movable rod 23 is sleeved with a return spring 24, the end part of the movable rod 23 is sleeved with a friction head 25, and the inner wall of the reducer 20 is provided with a friction ring 27 corresponding to the friction head. The friction head 25 and the friction ring 27 are made of high temperature resistant materials, so that the friction temperature is prevented from being too high, and the contact surface of the friction head and the friction ring can be provided with reticular textures to further improve the friction force.
Detect the bottom in the communication box 2 and be provided with power module, detect the communication box 2 middle part and set up tacho motor 5, detect the upper portion of communication box 2 and set up communication module, power module and communication module electric connection, tacho motor 5's electrical output end and communication module electric connection. The power module is used for supplying power to the communication module, and the power module and the communication module can be realized by adopting the prior art.
The connecting pipe orifice 12 comprises a connecting flange 28, the connecting flange 28 is fixedly connected with a conical pipe 29, the outer side edge of the conical pipe 29 is fixedly connected with an anti-slip ring 30, and the end part of the conical pipe 29 is fixedly connected with a pipe orifice 31. By means of the multi-layer design, pipelines with different sizes can be adapted, and locking is facilitated.
The shell of the anti-impact device 14 is welded and fixed with the upper end of the anti-impact fin 17, the bottom of the anti-impact fin 17 is welded and fixed with the chassis 16, the anti-impact fin 17 is arranged in a centripetal manner, the side edge of the anti-impact fin 17 is fixed with a sub-fin, the shunting cone 18 is conical, the shunting cone 18 is located below the butt joint port 15, and the shunting blade 19 is a spiral blade. The spiral splitter blade 19 enables the sulfuric acid solution to flow down more smoothly, and promotes the uniform dispersion of the sulfuric acid solution.
The end of the movable rod 23 and the inner side wall of the friction head 25 are correspondingly provided with grooves, and locking snap rings 26 are embedded in the grooves. The friction head 25 belongs to a loss part, abrasion can be generated after long-term use, the friction head 25 can be conveniently pulled out and replaced by designing the locking snap ring 26, and the use and maintenance cost of equipment is reduced.
The working principle is as follows: when the device is used, the connecting pipe orifice 12 is connected with a sulfuric acid solution input device at the front end, and the anti-impact device 14 is placed in the internal formation device. The sulfuric acid solution flows into the flowmeter 7 through the agent inlet 11, drives the blade 10 to rotate, and drives the blade 10 to drive the central shaft 8 to rotate through the blade base 9. Because the both ends of center pin 8 run through the setting, consequently the rotation of center pin 8 can drive tacho motor 5 and rotate to tacho motor 5 can detect real-time sulphuric acid solution's flow, and transmit the control computer through communication module 6, realize managing lead acid battery internalization system. The other end of center pin 8 drives friction device 21 and rotates, because the effect of the centrifugal force that the rotation produced, friction device 21 can be along with the improvement of rotational speed and the extension, when the rotational speed was too fast, friction device 21's front end, friction head 25 can rub with the inner wall of friction ring 27 promptly to play the deceleration effect, prevent that the sulphuric acid solution velocity of flow is too fast. When the sulfuric acid solution flows into the anti-scouring device 14, the shunting cone 18 and the shunting blades 19 can uniformly disperse the sulfuric acid solution, the sulfuric acid solution can be further prevented from being scoured towards one position through the anti-scouring fins 17, and the reaction of formation in the storage battery electrode is uniformly carried out.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a lead acid battery internalization becomes system control virtualization group accuse equipment, includes main equipment case (1), its characterized in that: a detection communication box (2), a flowmeter box (3) and a reducer box (4) are respectively arranged in the main equipment box (1), and a flowmeter (7) is arranged in the flowmeter box (3);
a central shaft (8) is arranged at the center of the flowmeter (7), a blade base (9) is fixedly connected to the outer side of the part, located in the flowmeter (7), of the central shaft (8), blades (10) are fixedly connected to the outer side of the blade base (9), a medicament inlet (11) is formed in the left side end of the flowmeter (7), a medicament outlet (13) is formed in the right side end of the flowmeter (7), the medicament inlet (11) is communicated with a connecting pipe orifice (12), and the connecting pipe orifice (12) penetrates through the side wall of the main equipment box (1) and extends out of the main equipment box (1);
the central shaft (8) penetrates through the shells on the two sides of the flowmeter (7), and the left end of the central shaft (8) is connected with a rotor of the speed measuring motor (5) through a gear set;
the medicine outlet (13) is connected with a butt joint port (15) at the upper end of the anti-impact device (14) through a pipeline, the bottom of the anti-impact device (14) is provided with a chassis (16), the upper side of the chassis (16) is provided with anti-impact fins (17), the center of the chassis (16) is provided with a shunting cone body (18), and the outer side edge of the shunting cone body (18) is fixedly connected with a shunting blade (19);
be provided with reduction gear (20) in reduction gear case (4), the right side end of center pin (8) runs through to the center of reduction gear (20), and center pin (8) are located partial outside fixedly connected with friction device (21) of reduction gear (20), and friction device (21) are including inside slider (22), the outside end and the movable rod (23) fixed connection of slider (22), and reset spring (24) have been cup jointed in the outside of movable rod (23), and friction head (25) have been cup jointed to the tip of movable rod (23), and the inner wall of reduction gear (20) corresponds friction head and is provided with friction ring (27).
2. The lead-acid storage battery container formation system control virtualization group control device of claim 1, wherein: the bottom is provided with power module in detecting communication case (2), detects communication case (2) middle part and sets up tacho motor (5), and the upper portion that detects communication case (2) sets up communication module, power module and communication module electric connection, the electric output and the communication module electric connection of tacho motor (5).
3. The lead-acid storage battery container formation system control virtualization group control device of claim 1, wherein: the connecting pipe orifice (12) comprises a connecting flange (28), the connecting flange (28) is fixedly connected with a conical pipe (29), the outer side edge of the conical pipe (29) is fixedly connected with an anti-slip ring (30), and the end part of the conical pipe (29) is fixedly connected with the pipe orifice (31).
4. The lead-acid storage battery container formation system control virtualization group control device of claim 1, wherein: the utility model discloses a fender device, including fender device (14), the casing of scour protection device (14) and the upper end welded fastening of scour protection fin (17), the bottom and chassis (16) welded fastening of scour protection fin (17), scour protection fin (17) are centripetal form and arrange, and the side of scour protection fin (17) is fixed with the subfin, reposition of redundant personnel centrum (18) are conical, and reposition of redundant personnel centrum (18) are located the below to interface (15), reposition of redundant personnel blade (19) are helical blade.
5. The lead-acid storage battery container formation system control virtualization group control device of claim 1, wherein: the end part of the movable rod (23) and the inner side wall of the friction head (25) are correspondingly provided with grooves, and locking snap rings (26) are embedded in the grooves.
CN202110077527.4A 2021-01-20 2021-01-20 Virtual group control equipment for control of formation system in lead-acid storage battery Pending CN112909358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110077527.4A CN112909358A (en) 2021-01-20 2021-01-20 Virtual group control equipment for control of formation system in lead-acid storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110077527.4A CN112909358A (en) 2021-01-20 2021-01-20 Virtual group control equipment for control of formation system in lead-acid storage battery

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CN112909358A true CN112909358A (en) 2021-06-04

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203396275U (en) * 2013-04-10 2014-01-15 山东科技大学 Heat exchanger impingement plate with rotating blades
CN104466081A (en) * 2014-10-17 2015-03-25 超威电源有限公司 Intelligent acid adding device in paste mixing for preparing lead-acid storage battery and method for controlling acid adding time
CN107837504A (en) * 2017-12-11 2018-03-27 李传广 A kind of golf clubs of replaceable head
CN109954293A (en) * 2018-12-03 2019-07-02 湖南全望信息科技有限公司 A kind of industrial design solid material dissolution extraction element
CN110199849A (en) * 2019-07-09 2019-09-06 顾健健 A kind of water-saving drip irrigation system and its drip irrigation method
CN110314777A (en) * 2019-05-23 2019-10-11 合肥工业大学 A kind of controllable constant-current and self-stabilization protecting against shock rotary water-out device
CN210103925U (en) * 2019-05-27 2020-02-21 山东万佳食品有限公司 Fermentation device in monosodium glutamate production
CN210106847U (en) * 2019-05-21 2020-02-21 中外建安装有限公司 Elbow pipe connecting device
CN211248593U (en) * 2019-09-30 2020-08-14 宁波天工凌屹工具有限公司 File cutter
CN111706519A (en) * 2020-06-16 2020-09-25 王顺朝 Vane pump convenient to adjust flow
CN211729678U (en) * 2019-09-30 2020-10-23 泉州奔众电器有限公司 A dry powder mortar agitating unit for building site

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203396275U (en) * 2013-04-10 2014-01-15 山东科技大学 Heat exchanger impingement plate with rotating blades
CN104466081A (en) * 2014-10-17 2015-03-25 超威电源有限公司 Intelligent acid adding device in paste mixing for preparing lead-acid storage battery and method for controlling acid adding time
CN107837504A (en) * 2017-12-11 2018-03-27 李传广 A kind of golf clubs of replaceable head
CN109954293A (en) * 2018-12-03 2019-07-02 湖南全望信息科技有限公司 A kind of industrial design solid material dissolution extraction element
CN210106847U (en) * 2019-05-21 2020-02-21 中外建安装有限公司 Elbow pipe connecting device
CN110314777A (en) * 2019-05-23 2019-10-11 合肥工业大学 A kind of controllable constant-current and self-stabilization protecting against shock rotary water-out device
CN210103925U (en) * 2019-05-27 2020-02-21 山东万佳食品有限公司 Fermentation device in monosodium glutamate production
CN110199849A (en) * 2019-07-09 2019-09-06 顾健健 A kind of water-saving drip irrigation system and its drip irrigation method
CN211248593U (en) * 2019-09-30 2020-08-14 宁波天工凌屹工具有限公司 File cutter
CN211729678U (en) * 2019-09-30 2020-10-23 泉州奔众电器有限公司 A dry powder mortar agitating unit for building site
CN111706519A (en) * 2020-06-16 2020-09-25 王顺朝 Vane pump convenient to adjust flow

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Application publication date: 20210604