CN110749707A - Gas detection method for single battery module - Google Patents
Gas detection method for single battery module Download PDFInfo
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- CN110749707A CN110749707A CN201911113357.XA CN201911113357A CN110749707A CN 110749707 A CN110749707 A CN 110749707A CN 201911113357 A CN201911113357 A CN 201911113357A CN 110749707 A CN110749707 A CN 110749707A
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
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- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
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Abstract
The invention discloses a gas detection method for a single battery module, which comprises a battery module and a detection device, wherein the detection device comprises a gas detection device and a gas detection device; the battery module comprises the energy storage battery module, and the energy storage battery module is the energy storage battery PACK of inside integrated lithium cell, and detection device comprises gaseous detection device, by pass line and trunk line. The invention has the beneficial effects that: the gas detection method for the single battery module is reasonable in design, and carries out real-time monitoring on gas flow inside the single battery module during working. When the lithium battery is abnormal, whether flammable and explosive gas and toxic gas are generated can be detected. Through the inside gas flow of control entering detection device for whole gas detection device's response speed is extremely fast, can realize the early warning function with signal transmission to well accuse management system extremely fast, not only can effectual guarantee patrol and examine personnel's personal safety, can also avoid the emergence of incident, reduces because of the huge economic loss that the incident caused.
Description
Technical Field
The invention relates to a gas detection method, in particular to a gas detection method for a single battery module, and belongs to the technical field of monitoring of energy storage battery modules.
Background
Because a gas detection scheme provided for a single battery module does not exist at present, when the lithium iron phosphate battery integrated in the battery module is damaged and leaks, flammable and explosive gases such as methane, acetylene and the like are generated; when toxic gases such as hydrogen fluoride and carbon monoxide are leaked, the corresponding management system in the energy storage container cannot detect in real time. Not only can bring hidden danger for patrolling and examining personnel's personal safety like this, can also arouse great incident such as burning or explosion even, cause environmental pollution and a large amount of economic loss, based on this, this application provides a gas detection method for single battery module.
Disclosure of Invention
An object of the present invention is to provide a gas detection method for a single battery module in order to solve the above-mentioned problems.
The invention realizes the purpose through the following technical scheme: a gas detection method for a single battery module comprises the battery module and a detection device; the battery module is composed of an energy storage battery module, the energy storage battery module is an energy storage battery PACK with a lithium battery integrated inside, the detection device is composed of a gas detection device, a bypass pipeline and a main pipeline, the gas detection device is installed at the front end of the energy storage battery module, one end of the bypass pipeline is connected with an air outlet of the energy storage battery module, and the gas detection device is communicated with the bypass pipeline through the main pipeline;
the gas detection device is internally and integrally provided with a gas sensor, a flowmeter is arranged inside a bent part of the bypass pipeline, and a ball valve is arranged inside the other end of the bypass pipeline.
The detection method comprises the following steps:
1) integrating a gas sensor in a gas detection device in the detection device part to detect toxic gas;
2) the bypass pipeline in the detection device is opposite to the air outlet of the battery module, so that the airflow in the battery module enters the gas detection device through the pipeline;
3) then, a flowmeter is added in the bypass gas pipe to ensure that the flow of the gas sensor introduced into the main pipeline is 400ml/min, so that the gas flow entering the main pipeline is most beneficial to the implementation of the detection function of the gas detection device;
4) then a ball valve is arranged in a main outlet pipeline of the bypass gas pipeline to control the gas flow of the gas pipeline;
5) when the energy storage battery module starts to work, airflow in the battery module enters the main pipeline through the air outlet and further enters the gas detection device;
6) through the sampling and the detection to getting into gaseous, gaseous detection device can be timely accurate demonstration combustible gas and toxic gas's real-time concentration, through RS485 signal with data transmission to battery management system, realize the function that detects and the early warning.
As a still further scheme of the invention: the gas sensors installed in the gas detection device include two types, and the sensors adopt a semiconductor principle for combustible gas; and aiming at toxic gases, the sensor adopts an electrochemical principle.
As a still further scheme of the invention: and the gas detection device is fixedly connected with the shell of the energy storage battery module in a bolt connection mode.
The invention has the beneficial effects that: the gas detection method for the single battery module is reasonable in design, and carries out real-time monitoring on gas flow inside the single battery module during working. When the lithium battery is in abnormal conditions such as breakage and leakage, whether flammable and explosive gases and toxic gases are generated or not can be detected. Through the control of the gas flow entering the detection device, the response speed of the whole gas detection device is extremely high, signals can be transmitted to a central control management system extremely quickly, the early warning function is realized, the detection method can effectively guarantee the personal safety of inspection personnel, the safety accidents can be avoided to a great extent, and the huge economic loss caused by the safety accidents is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic front view of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic top view of the present invention.
In the figure: 1. energy storage battery module, 2, gaseous detection device, 3, by pass line and 4, trunk line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, a gas detection method for a single battery module includes a battery module and a detection device; the battery module comprises an energy storage battery module 1, the energy storage battery module 1 is an energy storage battery PACK with a lithium battery integrated inside, the detection device comprises a gas detection device 2, a bypass pipeline 3 and a main pipeline 4, the gas detection device 2 is installed at the front end of the energy storage battery module 1, one end of the bypass pipeline 3 is connected with an air outlet of the energy storage battery module 1, and the gas detection device 2 is communicated with the bypass pipeline 3 through the main pipeline 4;
the gas detection device 2 is internally and integrally provided with a gas sensor, a flowmeter is arranged inside the bent part of the bypass pipeline 3, and a ball valve is arranged inside the other end of the bypass pipeline 3.
The detection method comprises the following steps:
firstly, the method comprises the following steps: a gas sensor is integrated in the gas detection device 2 in the detection device portion to detect the toxic gas;
secondly, the method comprises the following steps: the bypass pipeline in the detection device is opposite to the air outlet of the battery module, so that the airflow in the battery module enters the gas detection device through the pipeline;
thirdly, the method comprises the following steps: then, a flowmeter is added in the bypass gas pipe to ensure that the flow of the gas sensor introduced into the main pipeline is 400ml/min, so that the gas flow entering the main pipeline is most beneficial to the implementation of the detection function of the gas detection device;
fourthly: then a ball valve is arranged in a main outlet pipeline of the bypass gas pipeline to control the gas flow of the gas pipeline;
fifth, the method comprises the following steps: when the energy storage battery module starts to work, airflow in the battery module enters the main pipeline through the air outlet and further enters the gas detection device;
sixth: through the sampling and the detection to getting into gaseous, gaseous detection device can be timely accurate demonstration combustible gas and toxic gas's real-time concentration, through RS485 signal with data transmission to battery management system, realize the function that detects and the early warning.
Further, in the embodiment of the present invention, the gas sensors installed in the gas detection apparatus 2 include two types, a sensor using a semiconductor principle for a combustible gas; aiming at toxic gases, the sensor adopting the electrochemical principle can realize the detection function of the detection device on flammable and explosive gases such as methane, acetylene and the like and toxic gases such as hydrogen fluoride, carbon monoxide and the like.
Furthermore, in the embodiment of the invention, the gas detection device 2 is fixedly connected with the shell of the energy storage battery module 1 in a bolt connection mode, and the energy storage battery module integrates a large number of lithium iron phosphate batteries, and the number of probes of the gas sensor is large, so that the gas sensor is prevented from being directly placed in the battery module.
The working principle is as follows: when the gas detection method for the single battery module is used, the bypass pipeline in the detection device is enabled to face the position of the air outlet of the battery module, then a flowmeter is added in the bypass air pipe to ensure that the flow of the gas sensor introduced into the main pipeline is 400ml/min, so that the gas flow entering the main pipeline is most beneficial to the gas detection device to implement the detection function, then a ball valve is installed in the main outlet pipeline of the bypass gas pipeline to ensure the gas flow of the bypass gas pipeline, when the energy storage battery module starts to work, the gas flow in the battery module enters the main pipeline through the air outlet and further enters the gas detection device, through the sampling and detection of the entering gas, the gas detection device can accurately display the real-time concentration of inflammable gas and toxic gas in time, and data are transmitted to a battery management system through RS485 signals, the functions of detection and early warning are realized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. A gas detection method for a single battery module comprises the battery module and a detection device; the method is characterized in that: the battery module comprises an energy storage battery module (1), the energy storage battery module (1) is an energy storage battery PACK of an internal integrated lithium battery, the detection device comprises a gas detection device (2), a bypass pipeline (3) and a main pipeline (4), the gas detection device (2) is installed at the front end of the energy storage battery module (1), one end of the bypass pipeline (3) is connected with an air outlet of the energy storage battery module (1), and the gas detection device (2) is communicated with the bypass pipeline (3) through the main pipeline (4);
the gas detection device (2) is internally and integrally provided with a gas sensor, a flowmeter is arranged inside a bent part of the bypass pipeline (3), and a ball valve is arranged inside the other end of the bypass pipeline (3).
The detection method comprises the following steps:
1) integrating a gas sensor in a gas detection device (2) in the detection device part to detect the toxic gas;
2) the bypass pipeline in the detection device is opposite to the air outlet of the battery module, so that the airflow in the battery module enters the gas detection device through the pipeline;
3) a flowmeter is added in the bypass gas pipe to ensure that the flow of the gas sensor introduced into the main pipeline is 400ml/min, so that the flow of the gas entering the main pipeline is most beneficial to the implementation of the detection function of the gas detection device;
4) a ball valve is arranged in a main outlet pipeline of the bypass gas pipeline to control the gas flow of the gas pipeline;
5) when the energy storage battery module starts to work, airflow in the battery module enters the main pipeline through the air outlet and further enters the gas detection device;
6) through the sampling and the detection to getting into gaseous, gaseous detection device can be timely accurate demonstration combustible gas and toxic gas's real-time concentration, through RS485 signal with data transmission to battery management system, realize the function that detects and the early warning.
2. The gas detection method for the single battery module according to claim 1, wherein: the gas sensors installed in the gas detection device (2) comprise two types, and the sensors adopt a semiconductor principle for combustible gas; and aiming at toxic gases, the sensor adopts an electrochemical principle.
3. The gas detection method for the single battery module according to claim 1, wherein: and the gas detection device (2) is fixedly connected with the shell of the energy storage battery module (1) in a bolt connection mode.
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| CN201911113357.XA CN110749707A (en) | 2019-11-14 | 2019-11-14 | Gas detection method for single battery module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116840423A (en) * | 2023-08-29 | 2023-10-03 | 宁德时代新能源科技股份有限公司 | Energy storage device and gas concentration detection method thereof |
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Address after: Room 8050, 8 / F, 1033 Changning Road, Changning District, Shanghai 200050 Applicant after: Aopu (Shanghai) new energy Co., Ltd Address before: 201103 22 / F, building B, Dongyin center, No. 500, ruby Road, Changning District, Shanghai Applicant before: SHANGHAI YUYUAN POWER TECHNOLOGY Co.,Ltd. |
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Application publication date: 20200204 |