阅读说明：本技术 防爆灭火装置 (Explosion-proof fire extinguishing device ) 是由 张建华 杨何涛 张小谋 刘家奎 何侦元 于 2020-06-18 设计创作，主要内容包括：本发明的实施例提供了一种防爆灭火装置,涉及锂电池生产、存储技术领域。防爆灭火装置应用于锂电池,防爆灭火装置包括外罩、安全门、升降平台和冷却液槽,外罩上设置有上料口,安全门可升降地安装在上料口,升降平台设置在外罩内,用于承载锂电池,冷却液槽设置在外罩内、且位于升降平台的下方,升降平台可带动锂电池浸入冷却液槽。这样,在锂电池的生产或存储的过程中,如果锂电池发热或者起火,将锂电池通过上料口放到升降平台,安全门关闭,能够及时避免锂电池发热或者起火造成人身及财产损失。安全门关闭之后,锂电池如果达到起火条件或已经起火,则控制升降平台带动锂电池浸入冷却液槽,抑制锂电池起火,并对起火的锂电池能够灭火。(The embodiment of the invention provides an explosion-proof fire extinguishing device, and relates to the technical field of lithium battery production and storage. Explosion-proof extinguishing device is applied to the lithium cell, and explosion-proof extinguishing device includes dustcoat, emergency exit, lift platform and cooling cistern, is provided with the material loading mouth on the dustcoat, and the emergency exit is installed at the material loading mouth with the liftable ground, and lift platform sets up in the dustcoat for bear the lithium cell, the cooling cistern setting in the dustcoat, and be located lift platform's below, lift platform can drive the lithium cell and dip in the cooling cistern. Like this, at the production of lithium cell or the in-process of storage, if the lithium cell generates heat or catches fire, put lift platform with the lithium cell through the material loading mouth, the safety door is closed, can in time avoid the lithium cell to generate heat or catch fire and cause personal and loss of property. After the safety door was closed, if the lithium cell reached the condition of catching fire or has caught fire, then control lift platform drives the lithium cell and immerses the cooling tank, restraines the lithium cell and catches fire to the lithium cell that catches fire can put out a fire.)

1. The utility model provides an explosion-proof extinguishing device, is applied to the lithium cell, its characterized in that, explosion-proof extinguishing device includes:

the device comprises an outer cover (110), wherein a feeding port (111) is arranged on the outer cover (110);

a safety door (120) which is installed in the feed opening (111) in a liftable manner;

the lifting platform (130) is arranged in the outer cover (110) and is used for bearing the lithium battery;

and the cooling liquid tank (140) is arranged in the outer cover (110) and is positioned below the lifting platform (130), and the lifting platform (130) can drive the lithium battery to be immersed into the cooling liquid tank (140).

2. The explosion proof fire extinguishing apparatus according to claim 1, further comprising:

a smoke detector (150) mounted within the housing (110) for detecting a smoke condition of the lithium battery.

3. The explosion proof and fire extinguishing apparatus of claim 2, further comprising:

and the temperature measuring system (160) is arranged in the outer cover (110) and is used for detecting the temperature of the lithium battery.

4. Explosion proof fire extinguishing apparatus according to claim 3, wherein the temperature measuring system (160) is a DTS distributed optical fiber temperature measuring system.

5. The explosion proof fire extinguishing apparatus according to claim 3, further comprising:

the controller is electrically connected with the safety door (120), the lifting platform (130), the smoke detector (150) and the temperature measuring system (160), and the controller is used for controlling the working states of the safety door (120) and the lifting platform (130) according to the smoke generation state of the lithium battery and the temperature of the lithium battery.

6. The explosion-proof and fire-extinguishing apparatus according to claim 5, wherein the controller is configured to control the safety door (120) to be closed after the lithium battery is fed into the feeding port (111) and placed on the lifting platform (130).

7. The explosion-proof and fire-extinguishing apparatus according to claim 6, wherein when the smoke state of the lithium battery and the temperature of the lithium battery reach a fire condition, the controller is configured to control the lifting platform (130) to drive the lithium battery to be immersed in the cooling liquid tank (140) for a first preset time.

8. The explosion-proof and fire-extinguishing apparatus according to claim 7, wherein the controller is configured to control the lifting platform (130) to lift the lithium battery out of the cooling liquid tank (140) for a second preset time period.

9. The explosion-proof and fire-extinguishing apparatus according to claim 8, wherein the controller is configured to control the lifting platform (130) to drive the lithium battery to be immersed in the cooling liquid tank (140) for a first preset time period when the temperature of the lithium battery and the smoking state of the lithium battery reach a fire condition after the lithium battery is lifted out of the cooling liquid tank (140).

10. The explosion-proof and fire-extinguishing apparatus according to claim 8, wherein the controller is configured to control the emergency gate (120) to open when the smoke state of the lithium battery and the temperature of the lithium battery do not reach the fire condition after the lithium battery is lifted out of the cooling liquid tank (140).

Technical Field

The invention relates to the technical field of lithium battery production and storage, in particular to an explosion-proof fire extinguishing device.

Background

With the popularization and application of the NCM ternary material lithium battery, the cost of the NCM ternary material lithium battery is low, and the capacity of the NCM ternary material lithium battery is large, so that the NCM ternary material lithium battery occupies a large proportion in the market. Through research: in the electrolyte of the ternary material lithium battery, the initial reaction temperature is 220 ℃, the exothermic reaction temperature is 300 ℃, the internal temperature of the ternary lithium battery can reach more than 300 ℃ during testing, particularly extrusion, needling and overcharge testing, so that the lithium battery can generate heat, fire and even explode due to overcharge, extrusion, puncture and the like of the battery in the production and storage processes of the lithium battery, further the personal and property safety is threatened, and great potential safety hazards exist.

For the danger that can cause to the lithium cell, multiple extinguishing device to the lithium cell has appeared on the market, but current explosion-proof extinguishing device has following defect at least:

1. the traditional lithium battery fire extinguishing device has no cooling effect, and only can isolate the lithium battery on fire, so the fire can not be controlled when the lithium battery is completely combusted and then treated.

2. The traditional lithium battery fire extinguishing device cannot automatically judge the ignition state of the battery, and only has certain danger to operators through manual judgment.

Consequently, design an explosion-proof extinguishing device to lithium cell, can restrain the lithium cell and catch fire to the lithium cell that catches fire can put out a fire, this is the technical problem who urgently needs the solution at present.

Disclosure of Invention

The invention aims to provide an explosion-proof fire extinguishing device which can inhibit the fire of a lithium battery and extinguish the fire of the lithium battery.

Embodiments of the invention may be implemented as follows:

in a first aspect, an embodiment of the present invention provides an explosion-proof fire extinguishing apparatus, which is applied to a lithium battery, and includes:

the device comprises an outer cover, a material loading port and a material unloading port, wherein the outer cover is provided with the material loading port;

the safety door is arranged on the feeding port in a lifting manner;

the lifting platform is arranged in the outer cover and used for bearing the lithium battery;

and the cooling liquid tank is arranged in the outer cover and is positioned below the lifting platform, and the lifting platform can drive the lithium battery to be immersed into the cooling liquid tank.

Like this, at the production of lithium cell or the in-process of storage, if the lithium cell arouses the fire control to report to the police the back because of generating heat or catching a fire, puts lift platform with the lithium cell through the material loading mouth, and the safety door is closed, can in time avoid the lithium cell to generate heat or catch a fire and cause personal and property loss. After the safety door is closed, if the lithium battery reaches a fire condition or has been on fire, the lifting platform is controlled to drive the lithium battery to be immersed into the cooling liquid tank, so that the fire of the lithium battery is inhibited, and the fire of the lithium battery can be extinguished.

In an alternative embodiment, the explosion-proof fire extinguishing apparatus further comprises:

and the smoke detector is arranged in the outer cover and used for detecting the smoke generation state of the lithium battery.

Therefore, the smoke detector detects the smoke state of the lithium battery, and whether the lithium battery reaches the fire condition can be accurately judged.

In an alternative embodiment, the explosion-proof fire extinguishing apparatus further comprises:

and the temperature measuring system is arranged in the outer cover and used for detecting the temperature of the lithium battery.

In an optional embodiment, the temperature measurement system is a DTS distributed optical fiber temperature measurement system.

Therefore, the temperature of the lithium battery is detected through the temperature measuring system, and whether the lithium battery reaches the fire condition or not can be accurately judged.

In an alternative embodiment, the explosion-proof fire extinguishing apparatus further comprises:

the controller, the controller with the emergency exit, lift platform, smoke detector and the temperature measurement system all is connected electrically, the controller is used for according to the cigarette emergence state of lithium cell with the temperature of lithium cell, control the emergency exit with lift platform's operating condition.

Therefore, the controller can accurately judge whether the lithium battery reaches the fire condition, and when the lithium battery reaches the fire condition, the lithium battery is immersed into the cooling liquid tank in time, and the safety door is kept closed.

In an optional embodiment, the controller is configured to control the safety door to close after the lithium battery is fed into the feeding port and placed on the lifting platform.

In an optional embodiment, when the smoking state of the lithium battery and the temperature of the lithium battery reach a fire condition, the controller is configured to control the lifting platform to drive the lithium battery to be immersed in the cooling liquid tank and to keep a first preset time.

Like this, the smoking state of lithium cell with after the temperature of lithium cell reached the condition of starting a fire, will the lithium cell immerses cooling cistern, and keep for a first preset duration, can in time reduce the temperature of lithium cell suppresses the lithium cell is on fire.

In an optional embodiment, the controller is configured to control the lifting platform to drive the lithium battery to ascend out of the cooling liquid tank and keep for a second preset time.

Like this, the lithium cell rises out the cooling cistern and keep the second for predetermineeing for a long time, can make the state of lithium cell tends to stably, avoids having the afterburning condition, and the grass rate will the lithium cell takes out explosion-proof extinguishing device.

In an optional embodiment, after the lithium battery rises out of the cooling liquid tank, the smoking state of the lithium battery and the temperature of the lithium battery reach a fire condition, the controller is configured to control the lifting platform to drive the lithium battery to be immersed in the cooling liquid tank and keep for a first preset time.

Thus, after the lithium battery is immersed in the cooling liquid tank for one time, if the smoking state of the lithium battery and the temperature of the lithium battery still reach the ignition condition, the lithium battery is immersed in the cooling liquid tank for the second time, and the process is circulated until the smoking state of the lithium battery and the temperature of the lithium battery do not reach the ignition condition.

In an optional embodiment, after the lithium battery rises out of the cooling liquid tank, the smoke state of the lithium battery and the temperature of the lithium battery do not reach the fire condition, the controller is used for controlling the safety door to be opened.

Like this, work as after the lithium cell does not reach the condition of starting a fire, open the emergency exit again, take out the lithium cell, can avoid the lithium cell to reburn, and the security is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an explosion-proof fire extinguishing apparatus provided by an embodiment of the invention from a first view angle;

FIG. 2 is a schematic structural diagram of an explosion-proof fire-extinguishing apparatus provided by an embodiment of the invention from a second viewing angle;

FIG. 3 is a schematic structural diagram of an explosion-proof fire extinguishing apparatus provided by an embodiment of the invention from a third viewing angle;

fig. 4 is a flow chart of the operation of the explosion-proof fire extinguishing apparatus provided by the embodiment of the invention.

Icon: 100-explosion-proof fire extinguishing device; 110-a housing; 111-feeding port; 120-a safety door; 130-a lifting platform; 140-a cooling liquid bath; 150-a smoke detector; 160-temperature measurement system.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1 to 3, the embodiment provides an explosion-proof fire-extinguishing device 100, which is applied to put a lithium battery into the explosion-proof fire-extinguishing device 100 to suppress the fire of the lithium battery and extinguish the fire of the fired lithium battery after a fire alarm is given out due to the heating or fire of the lithium battery in the production or storage process of the lithium battery.

The explosion-proof fire extinguishing apparatus 100 comprises a housing 110, a safety door 120, a lifting platform 130, a cooling liquid tank 140, a smoke detector 150, a temperature measuring system 160 and a controller.

The housing 110 is provided with a feeding port 111, and the feeding port 111 is an inlet for the lithium battery to enter the explosion-proof fire extinguishing apparatus 100. The safety door 120 is installed to be movable up and down to the loading port 111, and the safety door 120 may be driven by a motor, and preferably, the safety door 120 is raised from below the loading port 111 to close the loading port 111, and the safety door 120 is lowered from above the loading port 111 to open the loading port 111. The safety door 120 is electrically connected to a controller, and the controller may control the elevation of the safety door 120, thereby controlling the opening or closing of the safety door 120.

The lifting platform 130 is arranged in the outer cover 110, the lifting platform 130 is used for bearing the lithium battery, the lifting platform 130 can drive the lithium battery to lift, and the lifting platform 130 can be driven by the combination of a motor and a screw rod.

The cooling liquid tank 140 is disposed in the housing 110 and below the lifting platform 130, and a cooling liquid, which may be water, is disposed in the cooling liquid tank 140. The lifting platform 130 can drive the lithium battery to be immersed in the cooling liquid tank 140. The lifting platform 130 is electrically connected to the controller, and the controller can control the lifting of the lifting platform 130, so as to control the lifting platform 130 to drive the lithium battery to be immersed in or lifted out of the cooling liquid tank 140. Thus, the controller controls the lifting platform 130 to drive the lithium battery to be immersed into the cooling liquid tank 140, so as to inhibit the lithium battery from being on fire and extinguish the fire of the lithium battery.

A smoke detector 150 is installed in the housing 110, the smoke detector 150 is used for detecting the smoke generating state of the lithium battery, the smoke detector 150 is electrically connected with the controller, and the smoke detector 150 sends the detected smoke generating state of the lithium battery to the controller.

The temperature measuring system 160 is installed in the housing 110, the temperature measuring system 160 is used for detecting the temperature of the lithium battery, the temperature measuring system 160 is electrically connected with the controller, and the temperature measuring system 160 sends the detected temperature of the lithium battery to the controller. The temperature measurement system 160 may be a DTS distributed optical fiber temperature measurement system.

Therefore, the smoke detector 150 detects the smoke state of the lithium battery, the temperature measuring system 160 detects the temperature of the lithium battery, whether the lithium battery reaches the fire condition can be accurately judged, and when the lithium battery reaches the fire condition, the lithium battery is immersed into the cooling liquid tank 140 in time, and the safety door 120 is kept closed.

Referring to fig. 4, after the lithium battery generates heat or generates a fire to cause a fire alarm, the manipulator places the lithium battery in the explosion-proof fire extinguishing apparatus 100, and then the explosion-proof fire extinguishing apparatus 100 of the explosion-proof fire extinguishing apparatus 100 provided in this embodiment performs the following working procedures:

s1: the safety door is controlled to be closed.

S2: and judging whether the lithium battery reaches the ignition condition or not.

When the lithium battery reaches the ignition condition, S3 is executed: and controlling the lifting platform to drive the lithium battery to enter the cooling liquid tank and keeping the first preset time. Wherein, the first preset time period may be 5 min. Therefore, after the smoke state of the lithium battery and the temperature of the lithium battery reach the fire condition, the lithium battery is immersed into the cooling liquid tank 140 and kept for a first preset time, so that the temperature of the lithium battery can be timely reduced, and the fire of the lithium battery is inhibited.

After performing S3, then perform S4: and controlling the lifting platform to drive the lithium battery to lift out of the cooling liquid tank and keep a second preset time. Wherein, the second preset time period may be 3 min. Therefore, the lithium battery rises out of the cooling liquid tank 140 and is kept for a second preset time, so that the state of the lithium battery tends to be stable, the re-ignition condition is avoided, and the lithium battery is taken out of the explosion-proof fire-extinguishing device 100 at a high grass rate.

After performing S4, then perform S5: and judging whether the lithium battery reaches the ignition condition or not.

When the lithium battery reaches the ignition condition, the process returns to S3. In this way, after the lithium battery is immersed in the cooling liquid bath 140 once, if the smoking state of the lithium battery and the temperature of the lithium battery still reach the ignition condition, the lithium battery is immersed in the cooling liquid bath 140 for a second time, and the process is repeated until the smoking state of the lithium battery and the temperature of the lithium battery do not reach the ignition condition.

When the lithium battery does not reach the ignition condition, executing S6: and controlling the safety door to be opened. Like this, work as after the lithium cell does not reach the condition of starting a fire, open emergency exit 120 again, take out the lithium cell, can avoid the lithium cell to reburn, and the security is high.

In the judgment of S2, when the lithium battery does not reach the ignition condition, S7 is executed: and standing the lithium battery on the lifting platform for a third preset time. Wherein, the third preset time period may be 4 min.

After performing S7, then perform S8: and judging whether the lithium battery reaches the ignition condition or not.

When the lithium battery reaches the ignition condition, the process returns to S3.

When the lithium battery does not reach the firing condition, S6 is performed.

The explosion-proof fire extinguishing apparatus 100 provided by the embodiment has the following beneficial effects:

1. the device is provided with a cooling liquid tank 140, and the lithium battery which reaches the fire condition or has already fired is immersed into the cooling liquid tank 140, so that the fire of the lithium battery can be inhibited, and the fire of the lithium battery can be extinguished;

2. before the lithium battery is immersed in the cooling liquid tank 140, the judgment on whether the lithium battery reaches the fire condition is set, the lithium battery reaching the fire condition is immersed in the cooling liquid tank 140, and the lithium battery without the fire condition is not immersed in the cooling liquid tank 140, so that the lithium battery is prevented from being additionally damaged by the cooling liquid;

3. be provided with smoke detector 150 and detect the smoking state of lithium cell still is provided with temperature measurement system 160 and detects the temperature of lithium cell through the detection to the smoking state and the temperature of lithium cell, can comparatively accurately judge whether the lithium cell reaches the condition of catching fire, has avoided artifical judgement lithium cell to reach the condition of catching fire, avoids the danger to operating personnel.

In this embodiment, the smoke detector 150 and the temperature measuring system 160 are provided at the same time to detect whether the lithium battery is in a fire condition, in other embodiments, only the smoke detector 150 may be provided, or only the temperature measuring system 160 may be provided, and it may also be determined whether the lithium battery is in a fire condition.

In addition, the driving form of the safety door 120 and the driving form of the lifting platform 130 may be selected from various forms, such as a motor, a screw, a combination of gears, or a cylinder drive, which are well-known technologies, and are not limited in detail in this embodiment.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.