CN115101834B - Storage battery maintenance device and maintenance process method - Google Patents
Storage battery maintenance device and maintenance process method Download PDFInfo
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- CN115101834B CN115101834B CN202210651852.1A CN202210651852A CN115101834B CN 115101834 B CN115101834 B CN 115101834B CN 202210651852 A CN202210651852 A CN 202210651852A CN 115101834 B CN115101834 B CN 115101834B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- General Chemical & Material Sciences (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The application is applicable to the technical field of storage batteries and provides a storage battery maintenance device and a maintenance process method. The storage battery maintenance device comprises a sampling detection part, a water supplementing part, a control part and a bearing part, wherein the sampling detection part is communicated with a storage battery to be maintained, and the sampling detection part is used for extracting electrolyte in the storage battery to be maintained and measuring specific gravity data of the electrolyte; the water supplementing part is communicated with the storage battery to be maintained and is used for supplementing water for the storage battery to be maintained; the control part is respectively and electrically connected with the sampling detection part and the water supplementing part, and can control the sampling detection part to carry out sampling measurement and control the water supplementing part to supplement water according to specific gravity data of the electrolyte; the sampling detection part, the water supplementing part and the control part are arranged on the bearing part. The design of this application has realized the automation of sample measurement work and moisturizing work, has not only reduced staff's work load, has also eliminated staff's experience deviation to a certain extent simultaneously to guarantee every section battery homoenergetic good operation.
Description
Technical Field
The application belongs to the technical field of storage batteries, and particularly relates to a storage battery maintenance device and a maintenance process method.
Background
The storage battery is used as a direct current power supply, plays a vital role in safe and stable operation of the nuclear power station, and in order to ensure that the storage battery can be always in a good operation state, the storage battery needs to be maintained for voltage, current, specific gravity, fluid replacement and the like at intervals, and as the power supply requirements of various industries are improved, a large amount of storage batteries are required to be used, and the maintenance workload of the storage batteries is rapidly increased and is particularly complicated.
According to the maintenance requirement of the storage battery, the storage battery needs to be inspected in the month and the quarter, and the core working contents comprise: 1. manually measuring and recording the voltage of each storage battery by using a universal meter; 2. and manually measuring the specific gravity and the temperature of each section of storage battery electrolyte by using a hydrometer, and manually adjusting the specific gravity (namely replenishing the electrolyte) of the storage battery if the specific gravity exceeds the limit.
In specific operation, each time the specific gravity meter measures a storage battery, the liquid needs to be pumped and discharged by pressing a button for several times, after the measured data come out, the staff still needs to closely check the data and record the data on the table, a large amount of repeated actions consume a large amount of manpower, after the specific gravity of the measured storage battery is higher (i.e. unqualified), the staff still needs to add demineralized water to the storage battery according to personal experience, the conventionally used demineralized water adding tool is a funnel and a measuring cup, in order to ensure the accuracy of the adding amount, the staff still needs to stop constantly to check the adding amount in the adding process, and the operation consumes a large amount of time and energy, and meanwhile, the accuracy of the adding amount is difficult to ensure because of the experience of each staff.
Disclosure of Invention
The embodiment of the application aims to provide a storage battery maintenance device and a maintenance process method, and aims to solve the technical problems of complicated liquid supplementing work and great workload of a storage battery in the prior art.
In order to achieve the above object, according to one aspect of the present application, there is provided a battery maintenance device, including a sampling detection portion, a water replenishing portion, a control portion, and a carrying portion, the sampling detection portion being communicated with a battery to be maintained, the sampling detection portion being for extracting an electrolyte in the battery to be maintained and measuring specific gravity data of the electrolyte; the water supplementing part is communicated with the storage battery to be maintained and is used for supplementing water for the storage battery to be maintained; the control part is respectively and electrically connected with the sampling detection part and the water supplementing part, and can control the sampling detection part to carry out sampling measurement and control the water supplementing part to supplement water according to specific gravity data of the electrolyte; the sampling detection part, the water supplementing part and the control part are arranged on the bearing part.
Optionally, a liquid level observation part for observing the liquid level of the electrolyte is arranged on the storage battery to be maintained; the storage battery maintenance device to be maintained further comprises a liquid pumping part, wherein the liquid pumping part is arranged on the bearing part; the liquid pumping part is communicated with the storage battery to be maintained and is used for pumping electrolyte in the storage battery to be maintained so as to restore the liquid level of the electrolyte to a specified liquid level; the liquid pumping part is electrically connected with the control part, and the control part is used for controlling the liquid pumping part to pump electrolyte.
Optionally, the control part comprises a control part and a display touch part, and the control part is respectively and electrically connected with the sampling detection part, the water supplementing part and the liquid pumping part; the display touch piece is electrically connected with the control piece.
Optionally, the sampling detection portion includes a measuring member and a pipetting assembly, a first end of the measuring member is in communication with the battery to be maintained, and a second end of the measuring member is in communication with the pipetting assembly to enable electrolyte to pass through the measuring member.
Optionally, the pipetting component is set with sampling time and discharging time, and the duration of the sampling time is smaller than that of the discharging time; the sampling time and the discharging time can be set by displaying the touch piece.
Alternatively, the liquid extracting portion is provided with a liquid extracting set amount, which can be set by the display touch member.
Optionally, the battery maintenance device further comprises a voltage measurement part and a current measurement part, wherein the voltage measurement part is used for measuring the floating charge voltage of the battery pack and the voltage of the battery to be maintained, the voltage measurement part is electrically connected with the control part, and the control part is used for recording the floating charge voltage and the voltage; the current measuring piece is used for measuring the floating charge current of the storage battery pack, the current measuring piece is electrically connected with the control part, and the control part is used for recording the floating charge current.
Optionally, the bearing part comprises a bearing part body, driving wheels arranged in pairs and universal wheels arranged in pairs, and the driving wheels arranged in pairs and the universal wheels arranged in pairs are arranged at the lower end of the bearing part body; the axes of the two driving wheels are collinear, a connecting shaft is arranged between the two driving wheels, and the connecting shaft is rotatably arranged on the bearing part body; the storage battery maintenance device also comprises a walking driving part and a walking control part, wherein the walking driving part is arranged on the connecting shaft, and the output end of the walking driving part is in driving connection with the connecting shaft so as to drive two driving wheels connected with the connecting shaft to rotate; the walking control part is electrically connected with the walking driving part and is used for controlling and adjusting the output rotating speed of the walking driving part.
According to another aspect of the present application, there is provided a battery maintenance process method, using the above battery maintenance device, the battery maintenance process method including:
observing the liquid level of electrolyte in a single-section storage battery to be maintained, and carrying out liquid pumping treatment through a liquid pumping part if the liquid level of the electrolyte is higher than a designated liquid level;
and extracting electrolyte in the storage battery to be maintained through the sampling detection part, measuring the specific gravity of the electrolyte, and if the specific gravity of the electrolyte is higher than a reference value, carrying out water supplementing treatment through the water supplementing part.
Optionally, the display touch piece is provided with a liquid drawing icon, and the liquid drawing part is provided with an automatic liquid drawing state and a manual liquid drawing state; under the condition that the liquid drawing icon is clicked once, the liquid drawing part is in an automatic liquid drawing state, and the liquid drawing part automatically and quantitatively draws liquid; under the condition that the liquid drawing icon is continuously pressed, the liquid drawing part is in a manual liquid drawing state, and the liquid drawing part is used for manually and continuously drawing liquid.
The battery maintenance device that this application provided's beneficial effect lies in: compared with the prior art, when the storage battery to be maintained is maintained, firstly, under the control of the control part, the sampling detection part extracts electrolyte in the storage battery to be maintained, the specific gravity of the electrolyte is measured, the measured specific gravity data is transmitted to the control part, at the moment, the standard electrolyte capacity of the storage battery to be maintained by default is the actual electrolyte capacity of the storage battery to be maintained, and the control part calculates the actual water supplementing quantity of the storage battery to be maintained according to the specific gravity data and the electrolyte capacity data and then controls the water supplementing part to supplement water for the storage battery to be maintained. The design of the utility model realizes the automation of the sampling and measuring work and the water supplementing work, not only greatly reduces the workload of the staff, but also eliminates the experience deviation of the staff to a certain extent, thereby ensuring that each section of storage battery to be maintained can operate well. In addition, the carrying part is convenient for driving the sampling detection part, the water supplementing part and the control part to move among the multiple sections of storage batteries to be maintained, so that the convenience of operation is improved, and the workload of workers is further reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a battery maintenance device according to an embodiment of the present disclosure;
fig. 2 is a signal transmission flow chart of each component in the battery maintenance device provided in the embodiment of the present application;
fig. 3 is a flowchart of a method for maintaining a battery according to an embodiment of the present application.
Reference numerals related to the above figures are as follows:
100. a sampling detection unit; 110. a measuring member; 120. a pipetting assembly; 121. a sampling pump; 122. a sampling electromagnetic valve; 123. a discharge pump; 124. a discharging electromagnetic valve; 200. a water supplementing part; 210. a water supplementing pump; 220. a water supplementing valve; 230. a water replenishing flowmeter; 300. a liquid pumping part; 310. a liquid pump; 320. a liquid pumping electromagnetic valve; 330. an aspiration flow meter; 400. a control unit; 410. a control member; 420. displaying the touch piece; 500. a carrying part; 510. a bearing part body; 520. a driving wheel; 530. a universal wheel; 600. a storage battery to be maintained; 610. and a liquid level observation part.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it may be directly on another element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. Embodiments and features of embodiments in this application may be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As described in the background art, at present, each section of storage battery to be maintained needs to press several times of buttons to extract and discharge liquid by a densimeter, after the measured data comes out, a worker needs to closely check the data and record the data on a table, a large amount of repeated actions consume a large amount of manpower, when the specific gravity of the storage battery to be maintained is measured to be higher (i.e. unqualified), the worker needs to add demineralized water to the storage battery to be maintained according to personal experience, conventionally used demineralized water adding tools are a funnel and a measuring cup, and in order to ensure the accuracy of the adding amount, the worker needs to stop constantly to check the adding amount in the adding process, and a great amount of time and energy are consumed by the fact that the experience of each worker is different, so that the accuracy of the adding amount is difficult to ensure.
Referring to fig. 1 and 2, in order to solve the above-mentioned problems, according to an aspect of the present application, an embodiment of the present application provides a battery maintenance device including a sampling detection part 100, a water supplementing part 200, a control part 400, and a bearing part 500, the sampling detection part 100 being in communication with a battery 600 to be maintained, the sampling detection part 100 being for extracting an electrolyte in the battery 600 to be maintained and measuring specific gravity data of the electrolyte; the water supplementing part 200 is communicated with the storage battery 600 to be maintained and is used for supplementing water for the storage battery 600 to be maintained; the control unit 400 is electrically connected to the sampling detection unit 100 and the water replenishment unit 200, respectively, and the control unit 400 can control the sampling detection unit 100 to perform sampling measurement and can control the water replenishment unit 200 to replenish water according to specific gravity data of the electrolyte; the sampling detection unit 100, the water replenishment unit 200, and the control unit 400 are provided in the carrier unit 500.
In this embodiment, a communication port is provided at the upper end of the storage battery 600 to be maintained, so that the sampling detection portion 100 and the water replenishing portion 200 are communicated with the storage battery 600 to be maintained. In a specific application, when the to-be-maintained storage battery 600 is maintained, firstly under the control of the control part 400, the sampling detection part 100 extracts the electrolyte in the to-be-maintained storage battery 600, measures the specific gravity of the electrolyte, and transmits the measured specific gravity data to the control part 400, at this time, the control part 400 defaults that the standard electrolyte capacity of the to-be-maintained storage battery 600 is the actual electrolyte capacity of the to-be-maintained storage battery 600, and the control part 400 measures the actual water supplementing amount of the to-be-maintained storage battery 600 according to the specific gravity data and the electrolyte capacity data, and then controls the water supplementing part 200 to supplement water to the to-be-maintained storage battery 600. The design of the application realizes the automation of sampling and measuring work and water supplementing work, greatly reduces the workload of workers, and eliminates the experience deviation of the workers to a certain extent, thereby ensuring that each section of storage battery 600 to be maintained can operate well. In addition, the carrying part 500 is convenient for driving the sampling detection part 100, the water supplementing part 200 and the control part 400 to move among the multiple sections of storage batteries 600 to be maintained, so that the convenience of operation is improved, and the workload of staff is further reduced. In the embodiments of the present application, the water that supplements the battery 600 to be maintained is demineralized water.
Referring to fig. 1 and 2, in the present embodiment, a battery 600 to be maintained has a liquid level observation portion 610 for observing the liquid level of an electrolyte. The battery maintenance device further comprises a liquid pumping part 300, wherein the liquid pumping part 300 is arranged on the bearing part 500; the liquid pumping part 300 is communicated with the storage battery 600 to be maintained and is used for pumping electrolyte in the storage battery 600 to be maintained so as to restore the liquid level of the electrolyte to a specified liquid level; the liquid pumping part 300 is electrically connected to the control part 400, and the control part 400 is used for controlling the liquid pumping part 300 to pump electrolyte.
The battery 600 to be maintained in this embodiment of the application includes battery body and battery case, and the battery body sets up inside the battery case, and the battery case adopts the printing opacity material to make, and evenly is provided with a plurality of liquid level marks along its direction of height, and wherein all extension setting in the highest position, the lowest position and intermediate position among a plurality of liquid level marks, these liquid level marks and the battery case that can printing opacity form liquid level observation portion 610 jointly. In actual operation, the level of the electrolyte in the battery 600 to be maintained is wandered between the intermediate position and the highest position.
In a specific application, before the storage battery 600 to be maintained is replenished with water, the liquid level of the electrolyte in the storage battery 600 to be maintained is observed through the liquid level observation portion 610, and in actual operation, a designated liquid level can be set between a middle position and a position above the middle position in a plurality of liquid level marks, and in this application, the middle position is set to be the designated liquid level. If the liquid level of the electrolyte is higher than the designated liquid level, the control part 400 controls the liquid pumping part 300 to pump the electrolyte in the storage battery 600 to be maintained, so that the electrolyte in the storage battery 600 to be maintained is restored to the normal position; if the liquid level of the electrolyte is equal to the designated liquid level, the sampling measurement operation and the water supplementing operation can be directly performed. The design enables the electrolyte capacity in the storage battery 600 to be maintained in a set range before sampling measurement and water replenishment, thereby facilitating the accurate calculation of water replenishment amount in the later period, eliminating calculation errors to the greatest extent and ensuring that each storage battery 600 to be maintained can realize stable operation.
The battery maintenance device in this embodiment further includes a power supply unit electrically connected to the sampling detection unit 100, the water replenishment unit 200, the liquid extraction unit 300, and the control unit 400, and the power supply unit is disposed on the carrying unit 500; in the embodiment of the application, the power supply part adopts a lithium battery. The design described above eliminates the need for an external power source for operation of the battery maintenance device, thereby facilitating movement of the battery maintenance device between multiple battery cells 600 to be maintained.
Referring to fig. 2, the control part 400 in the present embodiment includes a control member 410 and a display touch member 420, wherein the control member 410 is electrically connected to the sampling detection part 100, the water replenishment part 200 and the liquid extraction part 300, respectively; touch member 420 is shown electrically connected to control member 410.
In this embodiment of the present application, the control element 410 adopts a PLC, the display touch element 420 adopts an induction liquid crystal display screen, hereinafter referred to as a display screen, the display screen is displayed as a main screen after being started, four interfaces are displayed in the main screen, and the user can enter the corresponding screen by clicking the interface which needs to be entered. The four interfaces comprise a parameter setting interface, a floating charge voltage and current testing interface, a single-section storage battery testing and water adding monitoring interface and a storage battery data recording report interface. The design described above facilitates the user to issue various control commands to the control member 410 via the display touch member 420, thereby controlling the sampling detection portion 100, the water replenishment portion 200 and the liquid extraction portion 300 to perform corresponding operations, and facilitates the user to know the working contents of the sampling detection portion 100, the water replenishment portion 200 and the liquid extraction portion 300.
Referring to fig. 1 and 2, the sampling detection portion 100 in the present embodiment includes a measurement member 110 and a pipetting assembly 120, a first end of the measurement member 110 is communicated with a battery 600 to be maintained, and a second end of the measurement member 110 is communicated with the pipetting assembly 120, so that electrolyte can pass through the measurement member 110, specifically, the pipetting assembly 120 can suck the electrolyte into the measurement member 110 for measurement, and can drain the electrolyte in the measurement member 110 into the battery 600 to be maintained.
In the embodiment of the application, the measuring member 110 adopts an electronic gravimeter, the measuring member 110 is electrically connected with the control member 410, and the first end of the measuring member 110 extends to the inside of the storage battery 600 to be maintained so as to be capable of extracting the electrolyte in the storage battery 600 to be maintained; the pipetting assembly 120 comprises a sampling pump 121 and a sampling electromagnetic valve 122, wherein the sampling electromagnetic valve 122 is arranged between the sampling pump 121 and the measuring member 110, a first end of the sampling electromagnetic valve 122 is communicated with a second end of the measuring member 110, a second end of the sampling electromagnetic valve 122 is communicated with the sampling pump 121, and the sampling pump 121 and the sampling electromagnetic valve 122 are electrically connected with a control member 410. A sampling icon, a specific temperature confirmation icon, a stock layout icon, a specific gravity value of the battery and a temperature value of the battery are displayed on a single-section storage battery test water adding monitoring interface of the display touch piece 420; in addition, the parameter setting interface of the display touch member 420 displays the total amount of electrolyte of a single section, that is, the total weight of electrolyte of the battery 600 to be maintained, and enables adjustment setting, the parameter value being set according to the model of the battery 600 to be maintained. During sampling measurement, the liquid level of the electrolyte in the storage battery 600 to be maintained is maintained at a specified liquid level through liquid pumping operation, and the set weight of the electrolyte in the storage battery 600 to be maintained is the weight of the liquid level of the electrolyte under the specified liquid level, namely the actual weight, and the parameter is a specific value.
In a specific application, when sampling and measuring, firstly clicking a sampling icon, under the control of a control member 410, a sampling pump 121 is started, and electrolyte in a storage battery 600 to be maintained is pumped into a measuring member 110, the measuring member 110 measures the electrolyte, and obtains a specific gravity value of the electrolyte at 20 ℃ and an actual temperature of the storage battery 600 to be maintained, wherein the specific gravity value and the temperature value can be obtained by controllingMember 410 is shown on a single battery test water addition monitoring interface displaying touch member 420 and is 1.23g/cm from the reference value 3 If the specific gravity of the electrolyte is higher than the reference value, the specific temperature confirmation icon is clicked, the control member 410 automatically calculates the actual water replenishing amount, and controls the water replenishing portion 200 to replenish water, and the actual water replenishing amount is displayed on the single-section battery test water replenishing monitoring interface of the display touch member 420 through the control member 410. If the specific gravity of the electrolyte is less than or equal to the reference value, the measurement error is usually repeated again, if the repeated measurement result is still less than or equal to the reference value, water supplementing is not needed, and if the repeated measurement result is greater than the reference value, water supplementing is continued. After the sampling is completed, the sample discharging icon is clicked, the sampling pump 121 is started again under the control of the control member 410, and the electrolyte in the measuring member 110 is discharged into the battery 600 to be maintained, so that the sampling detection portion 100 can perform specific gravity measurement and temperature measurement on the next section of the battery 600 to be maintained. In addition, when the specific gravity and the temperature of the storage battery 600 to be maintained are wrong or the storage battery 600 is wanted to be measured again, the sample icon can be clicked to perform the sample discharging operation, and after the sample discharging is completed, the measuring piece 110 can re-measure the specific gravity and the temperature of the electrolyte in the storage battery 600 to be maintained and display the electrolyte on the single-section storage battery test water adding monitoring interface.
In other examples, the pipetting assembly 120 further includes a discharge pump 123 and a discharge solenoid valve 124, the first end of the discharge solenoid valve 124 is in communication with the second end of the measurement member 110, the second end of the discharge solenoid valve 124 is in communication with the discharge pump 123, and both the discharge pump 123 and the discharge solenoid valve 124 are electrically connected to the control member 410. After the sampling is completed, the sample discharging icon is clicked, and the sample discharging pump 123 is started under the control of the control member 410 to discharge the electrolyte in the measuring member 110 into the storage battery 600 to be maintained.
As a preferred mode in the embodiment of the present application, the pipetting component 120 is set with a sampling time and a discharging time, and the duration of the sampling time is smaller than that of the discharging time; the sampling time and the discharging time can be set by the display touch 420.
In the embodiment of the present application, the sampling time defaults to 6 seconds, the discharging time defaults to 8 seconds, and the sampling time and the discharging time can be set through the parameter setting interface of the display touch piece 420, and the duration of the sampling time is only required to be smaller than the duration of the discharging time. The above design facilitates thorough evacuation of the electrolyte in the measuring member 110 so that the specific gravity of the electrolyte in each section of the battery 600 to be maintained can be accurately measured.
The liquid extracting portion 300 in this embodiment is provided with a liquid extracting set amount, which can be set by the display touch member 420.
In this embodiment of the present application, the liquid extraction portion 300 includes a liquid extraction pump 310, a liquid extraction electromagnetic valve 320, a liquid extraction flowmeter 330 and a wastewater tank, the wastewater tank is disposed inside the bearing portion 500, a first end of the liquid extraction flowmeter 330 is communicated with the storage battery 600 to be maintained and extends to the inside of the storage battery 600 to be maintained, so as to be capable of extracting electrolyte in the storage battery 600 to be maintained, a second end of the liquid extraction flowmeter 330 is communicated with a first end of the liquid extraction electromagnetic valve 320, a second end of the liquid extraction electromagnetic valve 320 is communicated with a first end of the liquid extraction pump 310, and a second end of the liquid extraction pump 310 is communicated with the wastewater tank. The pump 310, the pump solenoid valve 320, and the pump flow meter 330 are all electrically connected to the control member 410. The set amount of the extraction liquid is set and adjusted by a parameter setting interface of the display touch member 420.
In a specific application, during the liquid extraction process, under the control of the control element 410, the liquid extraction pump 310 is started, and the redundant electrolyte in the storage battery 600 to be maintained is extracted into the wastewater tank, the liquid extraction amount of the electrolyte is detected by the liquid extraction flowmeter 330 and displayed on the single storage battery test water adding monitoring interface of the display touch element 420, when the liquid extraction amount is equal to the set liquid extraction amount, the liquid extraction pump 310 stops working, and meanwhile, the liquid extraction electromagnetic valve 320 is closed, so that the liquid extraction process is realized. The set amount of the extraction liquid is convenient for maintaining the liquid level of the electrolyte in most of the storage batteries 600 to be maintained at the designated liquid level, thereby further reducing the workload of staff.
As an alternative in this embodiment, a waste water level sensor is provided inside the waste water tank, and the waste water level sensor is electrically connected to the control member 410. When the liquid level of the wastewater is higher than that of the wastewater high-level sensor, the display touch piece 420 can give out a prompt sound, so that the wastewater in the wastewater tank is prevented from overflowing outwards.
As a preferred mode in the embodiment of the application, the liquid drawing icon is displayed on the display touch piece 420, and the liquid drawing part 300 has an automatic liquid drawing state and a manual liquid drawing state; when the liquid drawing icon is clicked once, the liquid drawing part 300 is in an automatic liquid drawing state, the liquid drawing part 300 performs automatic quantitative liquid drawing, and when the liquid drawing icon is continuously pressed, the liquid drawing part 300 is in a manual liquid drawing state, and the liquid drawing part 300 performs manual continuous liquid drawing.
In the embodiment of the application, the liquid drawing icon is displayed on the single-section storage battery test water adding monitoring interface of the display touch piece 420. In a specific application, if the liquid level of the electrolyte in the storage battery 600 to be maintained is not recovered to the specified liquid level after the automatic liquid pumping, manual liquid pumping may be used until the liquid level of the electrolyte in the storage battery 600 to be maintained is recovered to the specified liquid level. This design as described above improves the accuracy of the pumping operation, facilitating the restoration of nearly all of the electrolyte level within battery 600 to be maintained to a specified level.
As an optional manner in the embodiment of the application, the single-section battery test water adding monitoring interface of the display touch piece 420 also displays a liquid drawing reset icon, after liquid drawing is completed, the liquid drawing reset icon is clicked, and the actual liquid drawing amount displayed on the single-section battery test water adding monitoring interface of the display touch piece 420 is cleared to be ready for next liquid drawing.
Referring to fig. 1 and 2, the water replenishing portion 200 in this embodiment includes a water replenishing pump 210, a water replenishing electromagnetic valve 220, a water replenishing flow meter 230 and a water replenishing tank, the water replenishing tank is disposed inside the bearing portion 500, a first end of the water replenishing flow meter 230 is communicated with the storage battery 600 to be maintained, a second end of the water replenishing flow meter 230 is communicated with the first end of the water replenishing electromagnetic valve 220, a second end of the water replenishing electromagnetic valve 220 is communicated with the first end of the water replenishing pump 210, a second end of the water replenishing pump 210 is communicated with the water replenishing tank, and a second end of the water replenishing pump 210 extends to the bottom of the water replenishing tank. The water replenishment pump 210, the water replenishment valve 220, and the water replenishment flow meter 230 are electrically connected to the control member 410.
In a specific application, after the sampling measurement is finished, the control element 410 calculates the actual water replenishment amount, the actual water replenishment amount is displayed on the single-section storage battery test water addition monitoring interface of the display touch element 420, the water replenishment pump 210 pumps the desalted water in the water replenishment tank, the desalted water is conveyed into the storage battery 600 to be maintained through the water replenishment electromagnetic valve 220 and the water replenishment flow meter 230, and the actual water replenishment amount is detected by the water replenishment flow meter 230. When the actual water replenishment amount is equal to the calculated water replenishment amount, the water replenishment pump 210 and the water replenishment solenoid valve 220 stop working at the same time, and the water replenishment work ends.
As an alternative way in this embodiment, the water-replenishing tank is internally provided with a water-replenishing high-level sensor and a water-replenishing low-level sensor, and the water-replenishing high-level sensor is located above the water-replenishing low-level sensor, and both the water-replenishing high-level sensor and the water-replenishing low-level sensor are electrically connected with the control element 410. When the level of demineralized water in the water replenishment tank is lower than the level sensor, the water replenishment pump 210 cannot operate under the control of the control member 410, thereby avoiding the water replenishment pump 210 from idling. When the demineralized water is added into the water supplementing tank, after the liquid level of the demineralized water in the water supplementing tank is higher than that of the water supplementing low-level sensor, the display touch piece 420 can give out a prompt sound, so that the demineralized water in the water supplementing tank is prevented from overflowing outwards.
Referring to fig. 2, the battery maintenance device in this embodiment further includes a voltage measuring member for measuring a float voltage of the battery pack and a voltage of the single-section battery 600 to be maintained, and a current measuring member electrically connected to the control part 400, and the control part 400 is for recording the float voltage and the voltage. The current measuring element is used for measuring the floating charge current of the storage battery pack, the current measuring element is electrically connected with the control part 400, and the control part 400 is used for recording the floating charge current.
In the embodiment of the application, the voltage measuring part adopts a voltage measuring meter pen, and the current measuring part adopts a clamp ammeter. The voltage measuring part and the current measuring part are electrically connected with the display touch part 420, and a floating charge voltage and current testing interface of the display touch part 420 is displayed with a floating charge voltage value, a floating charge current value, a floating charge voltage storage icon and a floating charge current storage icon. In a specific application, the voltage measuring piece is used for measuring the floating charge voltage of the storage battery, the value can be displayed on a floating charge voltage current test interface of the display touch piece 420 in real time, a floating charge voltage storage icon is clicked, and the floating charge voltage of the storage battery is stored in a storage battery data record report; in addition, the voltage of the battery 600 to be maintained may be measured using a voltage measuring device, which may be displayed in real time on a battery test water-up monitoring interface of the display touch member 420. And the current measuring part is used for measuring the floating charge current of the storage battery, the value can be displayed on a floating charge voltage and current testing interface of the display touch part 420 in real time, a floating charge current storage icon is clicked, and the floating charge current of the storage battery is stored in a storage battery data record report. The above design can test the storage battery pack to preliminarily judge whether the storage battery pack has a problem, if the values of the floating charge voltage and the floating charge current are abnormal, whether the charger has a problem needs to be considered, and meanwhile, the voltages of all the single-section storage batteries 600 to be maintained are tested, so that the fault cause is found, and if the values of the floating charge voltage and the floating charge current are kept normal, the voltage of the single-section storage batteries 600 to be maintained is continuously tested. In addition, if the voltage value of the single-section to-be-maintained storage battery 600 detected by the voltage measuring part is abnormal, the single-section to-be-maintained storage battery 600 needs to be considered for charging, and in severe cases, the single-section to-be-maintained storage battery 600 needs to be replaced to ensure the stable operation of all the to-be-maintained storage batteries 600.
In addition, the parameter setting interface in this embodiment also displays:
the number of cables is mainly determined by considering the difference of the poles of the storage battery 600 to be maintained, when the positive outgoing line of the storage battery has only one cable, the parameter is set to be 01, when the positive outgoing line of the storage battery has two cables, the parameter is set to be 02, and the like, the initial value of the parameter is 01, and the maximum value is 10;
correction values of individual parameters and maximum values of sensors, wherein the parameters are mainly used for eliminating errors existing in practice and ensuring normal development of maintenance work. The parameters are verified before leaving the factory, and generally, the user does not need to change, if the parameters need to be modified, the user must input a corresponding password to modify the parameters.
The water adding monitoring interface for single-section storage battery test also shows that:
the battery serial number, the parameter mainly sets the serial number of the current storage battery 600 to be maintained, and the serial number of the currently measured storage battery 600 to be maintained is selected by adding and subtracting through the buttons on the side and the lower button;
after all the works of the storage battery 600 to be maintained with the current serial number are finished, clicking the single-section storage, and automatically storing the voltage, specific gravity, temperature and actual water supplementing amount of the storage battery 600 to be maintained in the corresponding serial number of the storage battery test record report.
The storage battery test record report interface is mainly used for checking the data of the completed storage battery pack float charge voltage, float charge current and a single storage battery 600 to be maintained, and the serial numbers of the storage batteries 600 to be maintained on the report are in one-to-one correspondence with the serial numbers of the batteries of the single storage battery test water adding monitoring interface. The report can be previewed, printed and saved on the interface. The display touch member 420 is provided with a print interface connected to a printer.
Referring to fig. 1, the carrying part 500 in the present embodiment includes a carrying part body 510, driving wheels 520 arranged in pairs, and universal wheels 530 arranged in pairs, the driving wheels 520 arranged in pairs and the universal wheels 530 arranged in pairs being disposed at the lower end of the carrying part body 510; the axes of the two driving wheels 520 are collinear, a connecting shaft is arranged between the two driving wheels 520, and the connecting shaft is rotatably arranged on the bearing part body 510. The storage battery maintenance device also comprises a walking driving part and a walking control part, wherein the walking driving part is arranged on the connecting shaft, and the output end of the walking driving part is in driving connection with the connecting shaft so as to drive two driving wheels 520 connected with the connecting shaft to rotate; the walking control part is electrically connected with the walking driving part and is used for controlling and adjusting the output rotating speed of the walking driving part.
In this embodiment of the application, the inside hollow setting of carrier body 510, and a side is provided with the baffle that can dismantle the connection, make-up tank and waste water tank all set up inside carrier body 510, measuring part 110, sampling pump 121, sampling solenoid valve 122, drainage pump 123, drainage solenoid valve 124, make-up pump 210, make-up water solenoid valve 220, make-up water flow meter 230, drawing liquid pump 310, drawing liquid solenoid valve 320, drawing liquid flow meter 330 and show touch piece 420 all fixed mounting on the upper surface of carrier body 510, show touch piece 420 slope fixed mounting on the upper surface of carrier body 510. The driving wheel 520 is disposed at the front end of the carrier body 510, the universal wheel 530 is disposed at the rear end of the carrier body 510, and the disposed universal wheel 530 is convenient for driving the carrier body 510 to turn. The two driving wheels 520 are fixedly connected with the two ends of the connecting shaft respectively, the walking driving part adopts a walking driving motor, and an output shaft of the walking driving motor is in driving connection with the connecting shaft so as to drive the two driving wheels 520 to rotate and further drive the bearing part body 510 to move, and the design greatly reduces the workload of pushing the bearing part 500 to move. The walking control part comprises a walking converter and a walking rotating handle, the walking converter is electrically connected with the walking driving part, the walking rotating handle is fixedly connected to the side face of the bearing part body 510 and can rotate, the walking rotating handle is electrically connected with the walking converter, the output rotating speed of the walking driving motor is controlled by rotating the walking rotating handle, and the moving speed of the bearing part 500 is further controlled. In addition, one side of the walking rotating handle is also provided with a common handle, and the common handle and the walking rotating handle are arranged oppositely, so that the convenience of operation is further improved.
Referring to fig. 1 to 3, according to another aspect of the present application, an embodiment of the present application provides a battery maintenance process method, with the battery maintenance device described above, the battery maintenance process method includes:
s101, measuring floating charge voltage and floating charge flow of the storage battery pack, if detected data are normal, directly performing operations of liquid pumping, voltage detection, measurement and water supplementing of the storage battery 600 to be maintained in a single-section mode, if the detected data are abnormal, considering whether a charger has a problem or not, and then performing operations of liquid pumping, voltage detection, measurement and water supplementing of the storage battery 600 to be maintained in the single-section mode.
The floating charge voltage of the storage battery pack is measured by using the voltage measuring part, the value can be displayed on a floating charge voltage current testing interface of the display touch part 420 in real time, a floating charge voltage storage icon is clicked, and the floating charge voltage of the storage battery pack is stored in a storage battery pack data record report; and the current measuring part is used for measuring the floating charge current of the storage battery, the value can be displayed on a floating charge voltage and current testing interface of the display touch part 420 in real time, a floating charge current storage icon is clicked, and the floating charge current of the storage battery is stored in a storage battery data record report.
S102, observing the liquid level of the electrolyte in the single-section to-be-maintained storage battery 600, and if the liquid level of the electrolyte is higher than the designated liquid level, performing liquid pumping treatment through the liquid pumping part 300.
If the liquid level of the electrolyte is higher than the designated liquid level, under the control of the control member 410, the liquid pump 310 is started, and the redundant electrolyte in the storage battery 600 to be maintained is pumped into the wastewater tank, the liquid pumping amount of the electrolyte is detected by the liquid pumping flowmeter 330 and displayed on the single-section storage battery test water adding monitoring interface of the display touch member 420, when the liquid pumping amount is equal to the liquid pumping amount, the liquid pump 310 stops working, and meanwhile, the liquid pumping electromagnetic valve 320 is closed, so that the electrolyte in the storage battery 600 to be maintained is recovered to the normal position. If the liquid level of the electrolyte is equal to the designated liquid level, the sampling measurement operation and the water supplementing operation can be directly performed.
And S103, measuring the voltage of the single-section maintenance storage battery 600, if the voltage value is normal, performing measurement and water supplementing operation, and if the voltage value is abnormal, charging the single-section maintenance storage battery 600, and then performing measurement and water supplementing operation.
The voltage of the single-cell battery 600 to be maintained is measured by a voltage measuring member, and the value can be displayed on a single-cell battery test water-adding monitoring interface of the display touch member 420 in real time.
S104, the electrolyte in the battery 600 to be maintained is extracted by the sampling detection unit 100, and the specific gravity of the electrolyte is measured, and if the specific gravity of the electrolyte is higher than the reference value, the water replenishing unit 200 performs the water replenishing treatment.
During sampling and measurement, firstly, a sampling icon is clicked, under the control of a control member 410, a sampling pump 121 is started, electrolyte in a storage battery 600 to be maintained is pumped into a measuring member 110, the measuring member 110 measures the electrolyte, and a specific gravity value of the electrolyte at 20 ℃ and an actual temperature of the storage battery 600 to be maintained are obtained, and the electrolyte is pumped into the measuring member 110The specific gravity value and the temperature value are displayed on a single-battery test water-adding monitoring interface of the display touch member 420 through the control member 410 and are 1.23g/cm with the reference value 3 If the specific gravity of the electrolyte is higher than the reference value, the specific temperature confirmation icon is clicked, the control member 410 automatically calculates the actual water replenishing amount, and controls the water replenishing portion 200 to replenish water, and the actual water replenishing amount is displayed on the single-section battery test water replenishing monitoring interface of the display touch member 420 through the control member 410. If the specific gravity of the electrolyte is less than or equal to the reference value, the measurement error is usually repeated again, if the repeated measurement result is still less than or equal to the reference value, water supplementing is not needed, and if the repeated measurement result is greater than the reference value, water supplementing is continued.
When replenishing water, the water replenishing pump 210 pumps desalted water in the water replenishing tank, and the desalted water is conveyed into the storage battery 600 to be maintained through the water replenishing solenoid valve 220 and the water replenishing flow meter 230, and the actual water replenishing amount is detected by the water replenishing flow meter 230. When the actual water replenishment amount is equal to the calculated water replenishment amount, the water replenishment pump 210 and the water replenishment solenoid valve 220 stop working at the same time, and the water replenishment work ends.
As a preferred mode in the embodiment of the application, the liquid drawing icon is displayed on the display touch piece 420, and the liquid drawing part 300 has an automatic liquid drawing state and a manual liquid drawing state; when the liquid drawing icon is clicked once, the liquid drawing part 300 is in an automatic liquid drawing state, the liquid drawing part 300 performs automatic quantitative liquid drawing, and when the liquid drawing icon is continuously pressed, the liquid drawing part 300 is in a manual liquid drawing state, and the liquid drawing part 300 performs manual continuous liquid drawing.
In the embodiment of the application, the liquid drawing icon is displayed on the single-section storage battery test water adding monitoring interface of the display touch piece 420. In a specific application, if the liquid level of the electrolyte in the storage battery 600 to be maintained is not recovered to the specified liquid level after the automatic liquid pumping, manual liquid pumping may be used until the liquid level of the electrolyte in the storage battery 600 to be maintained is recovered to the specified liquid level. This design as described above improves the accuracy of the pumping operation, facilitating the restoration of nearly all of the electrolyte level within battery 600 to be maintained to a specified level.
In other examples, a six-degree-of-freedom or seven-degree-of-freedom robot may also be used for the above operations.
In summary, implementing the storage battery maintenance device and the maintenance process method provided by the embodiment has at least the following beneficial technical effects: when the to-be-maintained storage battery 600 is maintained, firstly, under the control of the control part 400, the sampling detection part 100 extracts electrolyte in the to-be-maintained storage battery 600, the specific gravity of the electrolyte is measured, the measured specific gravity data is transmitted to the control part 400, at this time, the control part 400 defaults that the standard electrolyte capacity of the to-be-maintained storage battery 600 is the actual electrolyte capacity of the to-be-maintained storage battery 600, the control part 400 measures the actual water supplementing amount of the to-be-maintained storage battery 600 according to the specific gravity data and the electrolyte capacity data, and then the water supplementing part 200 is controlled to supplement water for the to-be-maintained storage battery 600. The design of the application realizes the automation of sampling and measuring work and water supplementing work, greatly reduces the workload of workers, and eliminates the experience deviation of the workers to a certain extent, thereby ensuring that each section of storage battery 600 to be maintained can operate well. In addition, the carrying part 500 is convenient for driving the sampling detection part 100, the water supplementing part 200 and the control part 400 to move among the multiple sections of storage batteries 600 to be maintained, so that the convenience of operation is improved, and the workload of staff is further reduced.
The foregoing description of the preferred embodiment of the present invention is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. A battery maintenance apparatus, characterized by comprising:
a sampling detection unit (100), wherein the sampling detection unit (100) is communicated with a storage battery (600) to be maintained, and the sampling detection unit (100) is used for extracting electrolyte in the storage battery (600) to be maintained and measuring specific gravity data of the electrolyte; the upper end of the storage battery (600) to be maintained is provided with a communication port for the sampling detection part (100) to be communicated with the storage battery (600) to be maintained;
the sampling detection part (100) comprises a measuring piece (110) and a pipetting component (120), wherein a first end of the measuring piece (110) is communicated with the storage battery (600) to be maintained, and a second end of the measuring piece (110) is communicated with the pipetting component (120) so that the electrolyte can pass through the measuring piece (110); the pipetting assembly (120) comprises a sampling pump (121) and a sampling electromagnetic valve (122), the sampling electromagnetic valve (122) is arranged between the sampling pump (121) and the measuring piece (110), a first end of the sampling electromagnetic valve (122) is communicated with a second end of the measuring piece (110), and a second end of the sampling electromagnetic valve (122) is communicated with the sampling pump (121);
The pipetting assembly (120) further comprises a sample discharge pump (123) and a sample discharge electromagnetic valve (124), wherein a first end of the sample discharge electromagnetic valve (124) is communicated with a second end of the measuring piece (110), and a second end of the sample discharge electromagnetic valve (124) is communicated with the sample discharge pump (123);
a water replenishing part (200), wherein the water replenishing part (200) is communicated with the storage battery (600) to be maintained and is used for replenishing water for the storage battery (600) to be maintained;
a control unit (400), wherein the control unit (400) is electrically connected to the sampling detection unit (100) and the water replenishment unit (200), and the control unit (400) is capable of controlling the sampling detection unit (100) to perform sampling measurement and controlling the water replenishment unit (200) to replenish water according to specific gravity data of the electrolyte;
a carrying part (500), wherein the sampling detection part (100), the water supplementing part (200) and the control part (400) are arranged on the carrying part (500);
the storage battery (600) to be maintained is provided with a liquid level observation part (610) for observing the liquid level of the electrolyte, the storage battery (600) to be maintained comprises a storage battery body and a storage battery shell, the storage battery body is arranged inside the storage battery shell, the storage battery shell is made of a light-transmitting material, a plurality of liquid level marks are uniformly arranged along the height direction, and the liquid level marks and the storage battery shell jointly form the liquid level observation part (610); the storage battery maintenance device further comprises a liquid pumping part (300), wherein the liquid pumping part (300) is arranged on the bearing part (500); the liquid pumping part (300) is communicated with the storage battery (600) to be maintained and is used for pumping the electrolyte in the storage battery (600) to be maintained so as to restore the liquid level of the electrolyte to a specified liquid level; the liquid pumping part (300) is electrically connected with the control part (400), and the control part (400) is used for controlling the liquid pumping part (300) to pump the electrolyte;
The control part (400) comprises a control part (410) and a display touch part (420), and the control part (410) is respectively and electrically connected with the sampling detection part (100), the water supplementing part (200) and the liquid pumping part (300); the display touch piece (420) is electrically connected with the control piece (410);
the liquid extraction part (300) is provided with an extraction liquid setting amount, and the extraction liquid setting amount can be set by the display touch piece (420).
2. The battery maintenance device according to claim 1, wherein the pipetting assembly (120) is set with a sampling time and a drain time, the duration of the sampling time being smaller than the duration of the drain time; the sampling time and the proofing time can be set by the display touch (420).
3. The battery maintenance device according to claim 1, further comprising a voltage measuring member for measuring a float voltage of a battery pack and a voltage of the battery (600) to be maintained, the voltage measuring member being electrically connected to the control section (400), the control section (400) being configured to record the float voltage and the voltage;
the current measuring piece is used for measuring the floating charge flow of the storage battery pack, the current measuring piece is electrically connected with the control part (400), and the control part (400) is used for recording the floating charge flow.
4. A battery maintenance device according to any one of claims 1 to 3, wherein the carrier (500) includes a carrier body (510), a pair of drive wheels (520) and a pair of universal wheels (530), the pair of drive wheels (520) and the pair of universal wheels (530) being provided at a lower end of the carrier body (510); the axes of the two driving wheels (520) are collinear, a connecting shaft is arranged between the two driving wheels (520), and the connecting shaft is rotatably arranged on the bearing part body (510);
the storage battery maintenance device further comprises a walking driving part and a walking control part, wherein the walking driving part is arranged on the connecting shaft, and the output end of the walking driving part is in driving connection with the connecting shaft so as to drive the two driving wheels (520) connected with the connecting shaft to rotate; the walking control part is electrically connected with the walking driving part and is used for controlling and adjusting the output rotating speed of the walking driving part.
5. A battery maintenance process employing the battery maintenance apparatus according to any one of claims 1 to 2, characterized in that the battery maintenance process comprises:
Observing the liquid level of the electrolyte in a single section of the storage battery (600) to be maintained, and if the liquid level of the electrolyte is higher than the appointed liquid level, performing liquid pumping treatment through the liquid pumping part (300);
and extracting electrolyte in the storage battery (600) to be maintained through the sampling detection part (100), measuring the specific gravity of the electrolyte, and performing water supplementing treatment through the water supplementing part (200) if the specific gravity of the electrolyte is higher than a reference value.
6. The method according to claim 5, wherein the display touch member (420) is displayed with a liquid drawing icon, and the liquid drawing part (300) has an automatic liquid drawing state and a manual liquid drawing state;
when the liquid drawing icon is clicked once, the liquid drawing part (300) is in the automatic liquid drawing state, and the liquid drawing part (300) automatically and quantitatively draws liquid; under the condition that the liquid drawing icon is continuously pressed, the liquid drawing part (300) is in the manual liquid drawing state, and the liquid drawing part (300) is used for manually continuously drawing liquid.
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| CN111509311A (en) * | 2020-04-07 | 2020-08-07 | 福建福清核电有限公司 | Device is maintained to lead acid battery liquid level for nuclear power plant |
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| JP2015102388A (en) * | 2013-11-22 | 2015-06-04 | 古河電池株式会社 | Specific gravity measuring device |
| CN204749994U (en) * | 2015-05-14 | 2015-11-11 | 湖北华恩机车科技有限公司 | Electric tricycle control system |
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