CN110890576B - Liquid flow battery pipeline system and its detection and cleaning method for easy detection of sealing - Google Patents
Liquid flow battery pipeline system and its detection and cleaning method for easy detection of sealing Download PDFInfo
- Publication number
- CN110890576B CN110890576B CN201911256515.7A CN201911256515A CN110890576B CN 110890576 B CN110890576 B CN 110890576B CN 201911256515 A CN201911256515 A CN 201911256515A CN 110890576 B CN110890576 B CN 110890576B
- Authority
- CN
- China
- Prior art keywords
- valve
- electrode liquid
- storage tank
- liquid storage
- negative electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
- H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
-
- 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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
提供一种液流电池管路系统，包括：电池堆进出口阀(16)、正极储液罐(2)、负极储液罐(3)、正极进液主管(20)、正极出液主管(21)、负极进液主管(22)、负极出液主管(23)、正极储液罐出口阀(6)、正极储液罐进口阀(8)、负极储液罐出口阀(7)、负极储液罐进口阀(9)，并且包括：第一连通阀(10)、第二连通阀(11)、第三连通阀(13)、第四连通阀(14)、高位阀(15)和低位阀(12)。本发明实现了液流电池管路系统中输送系统和电池(堆)的快速密封性检测和安装后的管路快速清洁，降低人工成本。
A flow battery pipeline system is provided, comprising: a battery stack inlet and outlet valve (16), a positive electrode liquid storage tank (2), a negative electrode liquid storage tank (3), a positive electrode liquid inlet main pipe (20), a positive electrode liquid outlet main pipe (21), a negative electrode liquid inlet main pipe (22), a negative electrode liquid outlet main pipe (23), a positive electrode liquid storage tank outlet valve (6), a positive electrode liquid storage tank inlet valve (8), a negative electrode liquid storage tank outlet valve (7), a negative electrode liquid storage tank inlet valve (9) , and includes: a first communication valve (10), a second communication valve (11), a third communication valve (13), a fourth communication valve (14), a high valve (15) and a low valve (12). The invention realizes the fast sealing detection of the conveying system and the battery (stack) in the liquid flow battery pipeline system and the fast cleaning of the pipeline after installation, thereby reducing the labor cost.
Description
技术领域technical field
本发明涉及液流电池领域，更具体涉及液流电池的管路系统。The present invention relates to the field of liquid flow batteries, and more specifically relates to a piping system of a liquid flow battery.
背景技术Background technique
液流电池系统拥有能量转换效率高、容量可调节、使用寿命长、高安全性和环境友好等优点成为规模化储能的优先，发展迅速，成为储能行业的热点，，主要用于太阳能、风能等可再生能源的发电系统配套储能设备、电网的调峰填谷装置和不间断电源和应急电源系统。The flow battery system has the advantages of high energy conversion efficiency, adjustable capacity, long service life, high safety, and environmental friendliness. It has become a priority for large-scale energy storage, and it has developed rapidly and has become a hot spot in the energy storage industry.
液流电池系统的管路和电池堆(电池)在安装好之后，在系统正式运行前都需要检测其密封性。这是由于在运输、安装过程中，部件可能产生形变本身的气密性会产生变化。另外，在运输、施工过程中在可能会产生电解液的泄漏，使用密封材料也可能将杂质引进管路里面，因此在检测之前，理想的话需要对管路进行清洁处理。After the pipelines and battery stacks (batteries) of the flow battery system are installed, their airtightness needs to be tested before the system is officially put into operation. This is because the airtightness of the components may be deformed during transportation and installation. In addition, electrolyte leakage may occur during transportation and construction, and the use of sealing materials may also introduce impurities into the pipeline. Therefore, ideally, the pipeline needs to be cleaned before testing.
CN1536702A涉及燃料电池中的液体和气体的管路系统，该管路系统与输送的介质接触的材料由聚脂成型组成，该管路系统与液体和气体接触。CN201780119U披露一种变水头流量装置管路系统，该管路系统由多个变径管及直管组成，当需要改变管道测量通径时，可将直管段通过法兰式连接安装在所需的短变径管上，利用简单拆装，实现较大范围的流量标定；CN102569852A披露一种全钒液流电池用管路系统，该管路系统通过设置取液装置、止回阀、泄压机构、清洗排液机构和保温装置，实现了在线取液、防倒流、泄压、清洗排液和保温功能。现有技术都没有实现电池和管路系统的一次性密封性检测和一次性清洁管内灰尘或异物的功能。CN1536702A relates to a pipeline system for liquid and gas in a fuel cell, the material of which is in contact with the conveyed medium is made of polyester moulding, which is in contact with liquid and gas. CN201780119U discloses a piping system for variable water head flow devices. The piping system is composed of a plurality of variable diameter pipes and straight pipes. When the measuring diameter of the pipeline needs to be changed, the straight pipe section can be installed on the required short variable diameter pipe through a flange connection, and a large range of flow calibration can be realized by simple disassembly and assembly; CN102569852A discloses a piping system for an all-vanadium redox flow battery. Mechanism and heat preservation device realize the functions of online liquid extraction, backflow prevention, pressure relief, cleaning and drainage, and heat preservation. None of the prior art realizes the one-time sealing detection of the battery and pipeline system and the one-time cleaning function of dust or foreign matter in the tube.
目前液流电池和管路输送系统存在不足：1、需将每段管路拆下来进行密封性检测，再回装各段管路，不能够保证完全密封；2，管路密封性检测完成后，和电池结合在一起进行密封性检测时会带入杂质或灰尘；3，管路系统的清洁需每段管拆解下来清洁，耗时耗力。At present, there are deficiencies in the flow battery and pipeline delivery system: 1. It is necessary to dismantle each section of pipeline for airtightness testing, and then reinstall each section of pipeline, which cannot guarantee complete sealing; 2. After the pipeline airtightness test is completed, impurities or dust will be brought in when the pipeline is combined with the battery for airtightness testing; 3. To clean the pipeline system, each section of the pipeline needs to be dismantled and cleaned, which is time-consuming and labor-intensive.
发明内容Contents of the invention
本发明的目的之一是解决现有的液流电池系统密封性检测不便的问题。One of the objectives of the present invention is to solve the problem of inconvenient detection of the sealing performance of the existing liquid flow battery system.
本发明的另一目的是解决先有的液流电池系统清洁操作不便，清洁不彻底的问题。Another object of the present invention is to solve the problems of inconvenient cleaning operation and incomplete cleaning of the prior liquid flow battery system.
根据本发明，提出一种液流电池管路系统，包括：多个电池堆、为每个电池堆设置的电池堆进出口阀、正极储液罐、负极储液罐、正极进液主管、正极出液主管、负极进液主管和负极出液主管，所述系统还包括正极储液罐进口阀、正极储液罐出口阀、负极储液罐进口阀、负极储液罐进口阀，所述系统还包括：第一连通阀，连接在正极进口主管与正极出口主管间；第二连通阀，连接在负极进口主管与负极出口主管之间；第三连通阀，连接在正极进口主管与负极进口主管之间；第四连通阀，连接在正极出口主管与负极出口主管之间；高位阀，设置在所述液流电池管路系统的最高点，实现与系统外的通断；低位阀(，设置在所述液流电池管路系统的最低点，实现与系统外的通断。According to the present invention, a liquid flow battery pipeline system is proposed, including: a plurality of battery stacks, a battery stack inlet and outlet valve for each battery stack, a positive electrode liquid storage tank, a negative electrode liquid storage tank, a positive electrode liquid inlet main pipe, a positive electrode liquid outlet main pipe, a negative electrode liquid inlet main pipe, and a negative electrode liquid outlet main pipe. The second connection valve is connected between the negative electrode inlet supervisor and the negative electrode outlet supervisor; the third communication valve is connected between the positive electrode inlet supervisor and the negative electrode inlet supervisor; the fourth communication valve is connected between the positive electrode outlet supervisor and the negative electrode outlet supervisor; the high valve is set at the highest point of the flow battery piping system to realize on-off with the outside of the system; the low-position valve (set at the lowest point of the flow battery pipeline system to realize on-off with the outside of the system.
在优选的方案中，所述高位阀上连接一个软管，该软管可以在需要的时候连接至一个水源或者一个气源。In a preferred solution, a hose is connected to the high position valve, and the hose can be connected to a water source or an air source when needed.
在优选的方案中，所述低位阀连接一个压力源，用于向管路系统中增压。In a preferred solution, the low position valve is connected to a pressure source for pressurizing the pipeline system.
在优选的方案中，所述第一至第四连通阀都是两个，分别靠近正极和负极进出口主管设置，这样可以在检测或者清洁完系统之后，将两个连通阀之间的管道拆除。In a preferred solution, there are two first to fourth communication valves, which are respectively set close to the main pipes of the inlet and outlet of the positive and negative electrodes, so that the pipeline between the two communication valves can be removed after the system is inspected or cleaned.
进一步地，所述低位阀和压力源各设两个，分别设置在所述正极储液罐和负极储液罐附近。在正、负极的低位管路处各设一个，可以实现压力的快速升降，降低管路阻力，更有利于管路的清洁。Further, two low-position valves and two pressure sources are respectively provided near the positive electrode liquid storage tank and the negative electrode liquid storage tank. Install one at the low-level pipeline of the positive and negative poles, which can realize the rapid rise and fall of pressure, reduce the resistance of the pipeline, and be more conducive to the cleaning of the pipeline.
本发明的第二方面，提供一种检测液流电池管路系统中输送系统密封性的方法，所述管路系统包括：为每个电池堆设置的电池堆进出口阀、正极储液罐、负极储液罐、正极进液主管、正极出液主管、负极进液主管和负极出液主管、正极储液罐出口阀、正极储液罐进口阀负极储液罐进口阀、负极储液罐进口阀，还包括前述的第一、第二、第三、第四连通阀、压力源以及高位阀和低位阀，所述方法包括：关闭所有的电池堆进出口阀、正极储液罐出口阀、负极储液罐出口阀、正极储液罐进口阀、负极储液罐进口阀；打开第一连通阀、第二连通阀、第三连通阀、第四连通阀；打开高位阀和低位阀，从低位阀注水，从高位阀排气，管路满水后关闭高位阀；打开压力源，待压力上升至预定值后关闭，保持预定时间，检查压力是否下降或是否漏水。The second aspect of the present invention provides a method for detecting the tightness of the delivery system in the flow battery pipeline system. The pipeline system includes: a battery stack inlet and outlet valve, a positive electrode liquid storage tank, a negative electrode liquid storage tank, a positive electrode liquid inlet main pipe, a positive electrode liquid outlet main pipe, a negative electrode liquid inlet main pipe and a negative electrode liquid outlet main pipe, a positive electrode liquid storage tank outlet valve, a positive electrode liquid storage tank inlet valve, a negative electrode liquid storage tank inlet valve, and a negative electrode liquid storage tank inlet valve. The method includes: closing all the battery stack inlet and outlet valves, the positive electrode liquid storage tank outlet valve, the negative electrode liquid storage tank outlet valve, the positive electrode liquid storage tank inlet valve, and the negative electrode liquid storage tank inlet valve; opening the first communication valve, the second communication valve, the third communication valve, and the fourth communication valve; opening the high position valve and the low position valve, injecting water from the low position valve, exhausting from the high position valve, and closing the high position valve after the pipeline is full of water; drop or if it leaks.
本发明的第三方面，提供一种检测液流电池管路系统中输送系统密封性的方法，所述管路系统包括：为每个电池堆设置的电池堆进出口阀、正极储液罐、负极储液罐、正极进液主管、正极出液主管、负极进液主管和负极出液主管、正极储液罐进口阀、正极储液罐出口阀、负极储液罐进口阀、负极储液罐出口阀，还包括前述的第一、第二、第三、第四连通阀、压力源以及高位阀和低位阀，所述方法包括：关闭所有的电池堆进出口阀、正极储液罐出口阀、负极储液罐出口阀、正极储液罐进口阀、负极储液罐进口阀；打开第一连通阀、第二连通阀、第三连通阀、第四连通阀；打开低位阀和压力源，待压力上升至预定值后关闭，保持预定时间，检查压力是否下降。The third aspect of the present invention provides a method for detecting the tightness of the delivery system in the flow battery pipeline system. The pipeline system includes: a battery stack inlet and outlet valve, a positive electrode liquid storage tank, a negative electrode liquid storage tank, a positive electrode liquid inlet main pipe, a positive electrode liquid outlet main pipe, a negative electrode liquid inlet main pipe and a negative electrode liquid outlet main pipe, a positive electrode liquid storage tank inlet valve, a positive electrode liquid storage tank outlet valve, a negative electrode liquid storage tank inlet valve, and a negative electrode liquid storage tank outlet valve. A pressure source, a high-position valve, and a low-position valve. The method includes: closing all the battery stack inlet and outlet valves, the positive electrode liquid storage tank outlet valve, the negative electrode liquid storage tank outlet valve, the positive electrode liquid storage tank inlet valve, and the negative electrode liquid storage tank inlet valve; opening the first communication valve, the second communication valve, the third communication valve, and the fourth communication valve; opening the low position valve and the pressure source.
本发明的第四方面，提供一种清洁液流电池管路系统中输送系统的方法，所述管路系统包括：为每个电池堆设置的电池堆进出口阀、正极储液罐、负极储液罐、正极进液主管、正极出液主管、负极进液主管和负极出液主管、正极储液罐进口阀、正极储液罐出口阀、负极储液罐进口阀、负极储液罐出口阀，还包括前述的第一、第二、第三、第四连通阀以及高位阀和低位阀，所述方法包括：关闭所有的电池堆进出口阀、正极储液罐出口阀、负极储液罐出口阀、正极储液罐进口阀、负极储液罐进口阀；打开第一连通阀、第二连通阀、第三连通阀、第四连通阀；将高位阀通过一个软管连接水源，打开水源阀门，同时间断性打开和关闭低位阀，对管路内灰尘等进行清洁；清洁完毕后打开低位阀，再将软管连接一个气源，对整个输送系统进行吹扫，吹除管壁附着的水珠。A fourth aspect of the present invention provides a method for cleaning the delivery system in the pipeline system of a flow battery. The pipeline system includes: a battery stack inlet and outlet valve, a positive electrode liquid storage tank, a negative electrode liquid storage tank, a positive electrode liquid inlet main pipe, a positive electrode liquid outlet main pipe, a negative electrode liquid inlet main pipe and a negative electrode liquid outlet main pipe, a positive electrode liquid storage tank inlet valve, a positive electrode liquid storage tank outlet valve, a negative electrode liquid storage tank inlet valve, and a negative electrode liquid storage tank outlet valve. The method includes: closing all the battery stack inlet and outlet valves, the positive electrode liquid storage tank outlet valve, the negative electrode liquid storage tank outlet valve, the positive electrode liquid storage tank inlet valve, and the negative electrode liquid storage tank inlet valve; opening the first communication valve, the second communication valve, the third communication valve, and the fourth communication valve; connecting the high position valve to the water source through a hose, opening the water source valve, and at the same time intermittently opening and closing the low position valve to clean the dust in the pipeline; Perform purging to blow off the water droplets attached to the pipe wall.
本发明的第五方面，提供一种检测液流电池管路系统中电池堆密封性的方法，所述管路系统包括：为每个电池堆设置的电池堆进出口阀、正极储液罐、负极储液罐、正极进液主管、正极出液主管、负极进液主管和负极出液主管、正极储液罐进口阀、正极储液罐出口阀、负极储液罐进口阀、负极储液罐进口阀，还包括前述第一、第二、第三、第四连通阀、压力源、高位阀和低位阀，所述方法包括：关闭第一连通阀、第二连通阀、第三连通阀、第四连通阀；打开正极储液罐出口阀、正极储液罐进口阀、负极储液罐出口阀、负极储液罐进口阀；打开低位阀和压力源；待正负极压力上升至一个预定值后，关闭低位阀(12)；保持压预定时间，检查压力是否下降；如有压力下降，通过多个电池堆进出口阀的开和关动作，确定其中哪个电池堆的内部结构有渗漏。A fifth aspect of the present invention provides a method for detecting the tightness of a battery stack in a liquid flow battery pipeline system. The pipeline system includes: a battery stack inlet and outlet valve, a positive electrode liquid storage tank, a negative electrode liquid storage tank, a positive electrode liquid inlet main pipe, a positive electrode liquid outlet main pipe, a negative electrode liquid inlet main pipe and a negative electrode liquid outlet main pipe, and a positive electrode liquid storage tank inlet valve. The method includes: closing the first communication valve, the second communication valve, the third communication valve, and the fourth communication valve; opening the outlet valve of the positive liquid storage tank, the inlet valve of the positive electrode liquid storage tank, the outlet valve of the negative electrode liquid storage tank, and the inlet valve of the negative electrode liquid storage tank; opening the low position valve and the pressure source; closing the low position valve (12) after the pressure of the positive and negative electrodes rises to a predetermined value; There is leakage in the internal structure of the battery stack.
通过本发明，实现了液流电池管路系统中输送系统和电池(堆)的快速密封性检测和安装后的管路快速清洁，降低人工成本，有效地保障电池及管路的密封性能、清洁了管路内壁的灰尘及杂质，对系统的稳定运行至关重要。Through the present invention, the fast sealing detection of the delivery system and the battery (stack) in the liquid flow battery pipeline system and the rapid cleaning of the pipeline after installation are realized, the labor cost is reduced, the sealing performance of the battery and the pipeline is effectively guaranteed, and the dust and impurities on the inner wall of the pipeline are cleaned, which is crucial to the stable operation of the system.
附图说明Description of drawings
图1是本发明一个具体实施例的液流电池管路系统的示意图。Fig. 1 is a schematic diagram of a flow battery pipeline system according to a specific embodiment of the present invention.
具体实施方式Detailed ways
下面结合具体实施方式对本发明作进一步的说明，其中，附图仅用于示例性说明，表示的仅是示意图，而非实物图，不能理解为对本专利的限制；为了更好地说明本发明的实施例，附图某些部件会有省略、放大或缩小，并不代表实际产品的尺寸；对本领域技术人员来说，附图中某些公知结构及其说明可能省略是可以理解的。The present invention will be further described below in conjunction with specific embodiments, wherein, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical drawings, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the accompanying drawings may be omitted.
如图1所示，本实施例的液流电池管路系统包括多个电池堆1和输送系统，该输送系统负责向电池堆的正负极输送正、负电解液，该输送系统包括正极储液罐2、负极储液罐3、正极电解液泵4、负极电解液泵5、正极储液罐出口阀6、负极储液罐出口阀7、正极储液罐进口阀8、负极储液罐进口阀9、连接在正极出口主管21与正极进口主管20之间的第一连通阀10、连接在负极出口主管23与负极进口主管22之间的第二连通阀11、连接在正极进口主管20与负极进口主管22之间的第三连通阀13、连接在正极出口主管21与电池堆负极出口主管23之间的第四连通阀14、低位阀12、高位阀15、多个电池堆进出口阀16、压力源17、软管18、压力表19。As shown in Figure 1 , the liquid flow battery pipeline system of this embodiment includes a plurality of battery stacks 1 and a delivery system. The delivery system is responsible for delivering positive and negative electrolytes to the positive and negative electrodes of the battery stack. The first communication valve 10 between the pole inlet main pipe 20, the second communication valve 11 connected between the negative pole outlet main pipe 23 and the negative pole inlet main pipe 22, the third communication valve 13 connected between the positive pole inlet main pipe 20 and the negative pole inlet main pipe 22, the fourth communication valve 14 connected between the positive pole outlet main pipe 21 and the negative pole outlet main pipe 23 of the battery stack, the low valve 12, the high valve 15, multiple battery stack inlet and outlet valves 16, pressure source 17, hose 18, and pressure gauge 19.
本实施例中，高位阀15、低位阀12分别位于输送系统的最高点和最低点，高位阀可以连接一个软管18，该软管18在需要时候可以连接水源或者气源，在清洁输送系统或者以水压测试其密封性时，通过高位阀从水源快速进水，在排出水之后，将软管连接气源，吹扫管路中的残水。In this embodiment, the high-position valve 15 and the low-position valve 12 are respectively located at the highest point and the lowest point of the conveying system. The high-position valve can be connected to a hose 18. The hose 18 can be connected to a water source or an air source when necessary. When cleaning the conveying system or testing its tightness with water pressure, quickly enter water from the water source through the high-position valve. After the water is discharged, connect the hose to the air source to purge the residual water in the pipeline.
本发明使用的阀可以是球阀、蝶阀、电动阀、气动阀、电磁阀、闸阀、球塞阀、旋塞阀等具有开关功能的阀门，阀门接口型式可采用由令式、法兰式等具有连接功能的型式。The valves used in the present invention can be ball valves, butterfly valves, electric valves, pneumatic valves, solenoid valves, gate valves, ball plug valves, cock valves and other valves with switching functions.
在以水压测试系统的密封性的情况下，优选采用去离子水，或满足系统密封性检测，且能清洁管路的液体。也可以用气压来检测，典型的是用压缩空气，也可用采用氮气或惰性气体为介质。测试电池堆的密封性只能使用气压，在这种情况下，通常使用压缩空气，但是氮气或惰性气体也是可以的。In the case of using water pressure to test the tightness of the system, it is preferable to use deionized water, or a liquid that meets the system tightness test and can clean the pipeline. Air pressure can also be used to detect, typically compressed air, nitrogen or inert gas can also be used as the medium. The tightness of the stack can only be tested using air pressure, in which case compressed air is usually used, but nitrogen or inert gases are also possible.
本发明的系统进行管路密封性检测和清洁的工作原理如下：The working principle of the system of the present invention for pipeline tightness detection and cleaning is as follows:
在以水压法检测管路系统密封性检测时，关闭多个全钒液流电池堆1的电池堆进出口阀16；关闭正、负极储液罐2、3的正极储液罐出口阀6、负极储液罐出口阀7、正极储液罐进口阀8、负极储液罐进口阀9；打开输送系统的第一连通阀10、第二连通阀11、第三连通阀13和第四连通阀14；打开管路高位阀15；连接软管18；打开低位阀12；从低位阀缓慢注水，管路中存在的气体由高位阀15排出，待气体排尽，管路满水，关闭高位阀15；打开压力源17，待压力上升至管路设计压力的例如1.5倍后，关闭压力阀12，保持压力半小时未降且未发现管路有水漏出来即合格；打开压力阀12开始缓慢卸压完毕后关闭。如果需要进一步清洁输送系统，则将水源连接至软管18，打开水源阀门，同时压力阀12间断性打开和关闭来对管路内灰尘等进行清洁；清洁完毕后打开压力阀12，软管18连接气源对整个输送系统进行吹扫，将管壁附着的水珠吹除。When detecting the tightness of the pipeline system by the hydraulic method, close the stack inlet and outlet valves 16 of multiple all-vanadium redox flow battery stacks 1; close the positive liquid storage tank outlet valve 6, the negative liquid storage tank outlet valve 7, the positive electrode liquid storage tank inlet valve 8, and the negative electrode liquid storage tank inlet valve 9 of the positive and negative electrode liquid storage tanks 2 and 3; open the first communication valve 10, the second communication valve 11, the third communication valve 13 and the fourth communication valve 14 of the delivery system; open the pipeline high valve 15; Low-position valve 12; slowly inject water from the low-position valve, and the gas present in the pipeline is discharged by the high-position valve 15. When the gas is exhausted and the pipeline is full of water, close the high-position valve 15; open the pressure source 17, and when the pressure rises to 1.5 times the design pressure of the pipeline, close the pressure valve 12, keep the pressure for half an hour without dropping and no water leaks out of the pipeline, then it is qualified; open the pressure valve 12 and start to slowly relieve the pressure. If it is necessary to further clean the conveying system, connect the water source to the hose 18, open the water source valve, and simultaneously open and close the pressure valve 12 intermittently to clean the dust in the pipeline; after cleaning, open the pressure valve 12, connect the hose 18 to the air source to purge the entire conveying system, and blow off the water droplets attached to the pipe wall.
在以气压法检测管路系统密封性检测时，关闭多个全钒液流电池堆1的电池堆进出口阀16；关闭正、负极储液罐2、3的正极储液罐出口阀6、负极储液罐出口阀7、正极储液罐进口阀8、负极储液罐进口阀9；打开输送系统的第一连通阀10、第二连通阀11、第三连通阀13、第四连通阀14和高位阀15；打开压力阀12和压力源17，待压力上升至管路设计压力的例如1.15倍后，关闭低位阀12，保持压力表19压力半小时未降即合格；打开低位阀12开始缓慢卸压完毕后关闭。清洁输送系统时，自来水源接软管18，打开自来水阀门向系统内注水，同时间断性打开和关闭同时低位阀12来对管路内灰尘等进行清洁；清洁完毕后打开低位阀12，软管18连接压缩空气对整个输送系统管路进行吹扫，将管壁附着的水珠吹除。When detecting the tightness of the pipeline system by the pneumatic method, close the battery stack inlet and outlet valves 16 of a plurality of vanadium redox flow battery stacks 1; close the positive and negative liquid storage tanks 2 and 3 positive liquid storage tank outlet valve 6, negative liquid storage tank outlet valve 7, positive electrode liquid storage tank inlet valve 8, and negative electrode liquid storage tank inlet valve 9; open the first communication valve 10, the second communication valve 11, the third communication valve 13, the fourth communication valve 14 and the high position valve 15 of the delivery system; open the pressure valve 12 and the pressure source 17 After the pressure rises to, for example, 1.15 times the design pressure of the pipeline, close the low valve 12 and keep the pressure on the pressure gauge 19 for half an hour without dropping to be qualified; open the low valve 12 and start to slowly relieve the pressure and then close it. When cleaning the conveying system, the tap water source is connected to the hose 18, and the tap water valve is opened to inject water into the system. At the same time, the low-position valve 12 is intermittently opened and closed to clean the dust in the pipeline.
当对电池堆的密封性进行快速检测时，关闭所有连通阀10、11、13、14；打开多个全钒液流电池堆1的电池堆进出口阀16；同时打开低位阀12；同时打开压力源17；待正负极压力表19上升至电堆设计压力的例如1.15倍后，关闭正负极低位阀12；保持压力半小时未降即合格；若正负极两侧压力表，有一侧压力有下降或上升，则不合格，通过多个电池堆进出口阀16的开和关动作，来确定其中哪个电池堆的内部结构有渗漏。When the tightness of the battery stack is quickly detected, close all communication valves 10, 11, 13, 14; open the battery stack inlet and outlet valves 16 of multiple all-vanadium redox flow battery stacks 1; open the low valve 12 at the same time; Through the opening and closing actions of the inlet and outlet valves 16 of multiple battery stacks, it is determined which of the battery stacks has leakage in its internal structure.
当所有管路系统和电池堆密封性检测和清洁完成后，全钒液流电池系统运行前恢复所有运行时需开启或关闭的阀门；因正负极电解液不能混在一起，需隔离，因此在系统运行前，将第一连通阀10、第二连通阀11、第三连通阀13、第四连通阀14全部关闭中的所有阀门关闭，并且优选上述四种位置的连通阀各布置两个，这样在电池系统进行储能工作前，将所有双阀之间的管道拆除。After all pipeline systems and battery stacks are tested and cleaned, restore all valves that need to be opened or closed before operation of the all-vanadium redox flow battery system. Because the positive and negative electrolytes cannot be mixed together, they need to be isolated. Therefore, before the system starts running, all valves in the first communication valve 10, the second communication valve 11, the third communication valve 13, and the fourth communication valve 14 are all closed.
另一种实施方式中，上述四种位置的连通阀都用单阀，在系统投入使用时保留这些阀及相应管道，这样，在系统运行一阶段需要进行密封性检测或者清洁时，可以按照前述方法操作。为了避免阀的阀芯内漏造成正负极电解液接触，将阀门的一端或两端放入盲封垫片进行管路的隔断，系统运行一阶段后有需求时，可以先拆除盲封垫片，恢复原有管路，进行相关检测和清洁。In another embodiment, single valves are used for the communication valves in the above four positions, and these valves and corresponding pipelines are reserved when the system is put into use. In this way, when the system needs to be tested or cleaned during the first stage of system operation, it can be operated according to the aforementioned method. In order to avoid contact between the positive and negative electrolytes caused by the internal leakage of the valve core, one or both ends of the valve are put into a blind seal gasket to isolate the pipeline. If necessary after a stage of system operation, the blind seal gasket can be removed first, the original pipeline is restored, and relevant inspection and cleaning are carried out.
本发明中，正电池堆负极的进出口主管相连通、电池堆正极与电池堆负极的进口主管相连通、电池堆正极与电池堆负极的出口主管相连通，来达到液流电池储能系统所有管路相连通的目的，通过阀门的开关动作来对管路系统进行一次性密封性检测和清洁，并对电池进行一次性密封检测。易操作、提高效率、钒电池内部流道不堵塞、低成本等特点。In the present invention, the inlet and outlet main pipes of the positive and negative poles of the battery stack are connected, the positive pole of the battery stack is connected with the main entrance of the negative pole of the battery stack, and the positive pole of the battery stack is connected with the main outlet of the negative pole of the battery stack, so as to achieve the purpose of connecting all pipelines of the flow battery energy storage system, and perform one-time sealing detection and cleaning of the pipeline system through the switching action of the valve, and one-time sealing detection of the battery. It is characterized by easy operation, high efficiency, no clogging of the internal flow channel of the vanadium battery, and low cost.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256515.7A CN110890576B (en) | 2019-12-10 | 2019-12-10 | Liquid flow battery pipeline system and its detection and cleaning method for easy detection of sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911256515.7A CN110890576B (en) | 2019-12-10 | 2019-12-10 | Liquid flow battery pipeline system and its detection and cleaning method for easy detection of sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110890576A CN110890576A (en) | 2020-03-17 |
| CN110890576B true CN110890576B (en) | 2023-07-21 |
Family
ID=69751241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911256515.7A Active CN110890576B (en) | 2019-12-10 | 2019-12-10 | Liquid flow battery pipeline system and its detection and cleaning method for easy detection of sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110890576B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184336A (en) * | 2021-12-24 | 2022-03-15 | 和瑞电投储能科技有限公司 | Device and method for testing air tightness of iron-chromium flow battery stack |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025599A (en) * | 2000-07-12 | 2002-01-25 | Sumitomo Electric Ind Ltd | Liquid leak detection system for redox flow batteries |
| CN103943876A (en) * | 2014-03-27 | 2014-07-23 | 上海电气集团股份有限公司 | Pipeline structure matched with flow redox battery |
| CN106910919A (en) * | 2017-05-05 | 2017-06-30 | 湖南省德沃普储能有限公司 | All-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system and method |
| CN108023107A (en) * | 2017-12-01 | 2018-05-11 | 大连融科储能装备有限公司 | A kind of flow battery system and its method for operation of automatic restorability |
| CN211829060U (en) * | 2019-12-10 | 2020-10-30 | 湖南钒谷新能源技术有限公司 | Flow battery pipeline system convenient to detect leakproofness |
-
2019
- 2019-12-10 CN CN201911256515.7A patent/CN110890576B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025599A (en) * | 2000-07-12 | 2002-01-25 | Sumitomo Electric Ind Ltd | Liquid leak detection system for redox flow batteries |
| CN103943876A (en) * | 2014-03-27 | 2014-07-23 | 上海电气集团股份有限公司 | Pipeline structure matched with flow redox battery |
| CN106910919A (en) * | 2017-05-05 | 2017-06-30 | 湖南省德沃普储能有限公司 | All-vanadium flow battery energy-storage system pile electrolyte leakproof automatic checkout system and method |
| CN108023107A (en) * | 2017-12-01 | 2018-05-11 | 大连融科储能装备有限公司 | A kind of flow battery system and its method for operation of automatic restorability |
| CN211829060U (en) * | 2019-12-10 | 2020-10-30 | 湖南钒谷新能源技术有限公司 | Flow battery pipeline system convenient to detect leakproofness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110890576A (en) | 2020-03-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100565157C (en) | Disc valve detection device | |
| WO2024124860A1 (en) | Experimental device for measuring leakage rate of connecting member and sealing member of hydrogen-blended pipeline, and method | |
| CN209166762U (en) | A kind of air-tightness detection device | |
| CN108405501A (en) | Blowing pipeline device and process gas convey cleaning systems | |
| CN105699021A (en) | Vehicle fuel evaporation system air tightness detection method | |
| CN110890576B (en) | Liquid flow battery pipeline system and its detection and cleaning method for easy detection of sealing | |
| CN211829060U (en) | Flow battery pipeline system convenient to detect leakproofness | |
| CN106499889B (en) | A kind of safety valve pressure pilot system based on trepanning flange | |
| CN220982590U (en) | Battery sealing negative pressure detection device | |
| CN219369052U (en) | Ball valve air pressure detection device | |
| CN207123358U (en) | A kind of leakage detection device of air of heat transmission equipment | |
| CN111350654A (en) | Pneumatic diaphragm pump fault detection device | |
| CN209857482U (en) | A waterway system and semiconductor production equipment | |
| CN209910908U (en) | Valve test device | |
| CN211951873U (en) | Pressurized pipeline leakage plugging device | |
| CN205940270U (en) | Plate heat exchanger convenient to wash | |
| CN210269081U (en) | Air tightness detection device | |
| CN222979574U (en) | A pressure pipeline corrosion detection device | |
| CN212158978U (en) | A valve sealing surface leak detection device | |
| CN202216812U (en) | Radiator assembly air tightness detecting device | |
| CN107490458A (en) | A kind of air valve leak detection assembly and air valve leak hunting method | |
| CN209294803U (en) | One kind is improved to send hydrogen gas lines outside | |
| CN207609993U (en) | Oil-gas pipeline safety detects the medium supply apparatus of simulation system | |
| CN208076099U (en) | A kind of precision liquid medicine filter exhaust film detecting device | |
| CN221745433U (en) | A valve pressure testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Liquid flow battery pipeline system conducive to detecting sealing performance and its detection and cleaning methods Granted publication date: 20230721 Pledgee: Agricultural Bank of China Xiangyang Branch Pledgor: Hunan Vanadium Valley New Energy Technology Co., Ltd.|Zhongneng Energy Storage Technology Hubei Co., Ltd. Registration number: Y2025980026036 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |