CN114849107A

CN114849107A - Pneumatic immersion device and immersion method thereof

Info

Publication number: CN114849107A
Application number: CN202210623374.3A
Authority: CN
Inventors: 沈驰; 郭则新; 谢欢; 高怡晨
Original assignee: Shanghai Motor Vehicle Inspection Certification and Tech Innovation Center Co Ltd
Current assignee: Shanghai Motor Vehicle Inspection Certification and Tech Innovation Center Co Ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-08-05

Abstract

The invention relates to a pneumatic immersion device and an immersion method thereof. The pneumatic immersion device comprises a water storage tank; the pneumatic lifting devices are vertically arranged at the bottom of the water storage tank; the bracket is horizontally fixed on the plurality of pneumatic lifting devices; the fire-fighting water pipe is arranged above the water storage tank and is positioned on one side of the water storage tank; and starting the pneumatic lifting device to drive the bracket to move in the vertical direction and enable the bracket to sink to the bottom of the water storage tank. The pneumatic immersion device and the immersion method thereof provided by the invention can timely perform fire extinguishing treatment on the battery pack which is on fire and smokes, and improve the test safety.

Description

Pneumatic immersion device and immersion method thereof

Technical Field

The invention relates to the technical field of testing of new energy vehicles, in particular to a pneumatic immersion device and an immersion method thereof.

Background

When the battery pack of the new energy vehicle is tested, if emergencies such as fire and smoke occur, if the emergency situations are not timely or improper, phenomena such as explosion can occur, and secondary disasters can occur. Due to the characteristics of the lithium ion battery, oxygen can be generated for combustion supporting after the fire breaks out, and if the fire extinguisher is used by fire extinguishers in a short distance, the obvious effect is not achieved, and the safety of the personnel can be damaged.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a pneumatic immersion device and an immersion method thereof, which can be used for extinguishing fire of a battery pack which is on fire and smokes, and improving the test safety.

Specifically, the invention proposes a pneumatic immersion device comprising:

a water storage tank;

the pneumatic lifting devices are vertically arranged at the bottom of the water storage tank;

the bracket is horizontally fixed on the plurality of pneumatic lifting devices;

a fire hose arranged above the water storage tank and positioned at one side of the water storage tank;

and starting the pneumatic lifting device, and driving the bracket to move in the vertical direction and enable the bracket to sink to the bottom of the water storage tank.

According to one embodiment of the invention, the pneumatic immersion device comprises 4 pneumatic lifting devices, which are respectively arranged at four corners of the water storage tank.

According to one embodiment of the invention, the pneumatic lifting device comprises a piston and a lifting sleeve, the lifting sleeve is sleeved on the piston, and a compressed air pipeline is connected to the bottom of the piston.

According to one embodiment of the invention, a support is provided at the bottom periphery of the lifting sleeve, said support being adapted to carry the carriage.

According to one embodiment of the invention, a relief valve is provided on the piston and/or the lifting sleeve.

According to one embodiment of the invention, the diameter of the piston is 70-100 mm.

According to one embodiment of the invention, the weight borne by the bracket is 1000-2000 kg.

According to one embodiment of the invention, the compressed air pipeline, the air release valve and the water outlet valve of the fire fighting water pipe are remotely connected to a control device, and the control device is used for controlling the operation of the compressed air pipeline, the air release valve and the water outlet valve.

The invention also provides an immersion method, which is suitable for the pneumatic immersion device and comprises the following steps:

opening a compressed air pipeline to enable compressed air to enter the piston, jacking the lifting sleeve by the compressed air, and driving the bracket to ascend to a set position by the lifting sleeve;

if an emergency occurs, the compressed air pipeline is cut off, and an air valve is opened, so that the bracket is sunk to the bottom of the water storage tank;

and opening a water outlet valve of the fire-fighting water pipe, and putting fire-fighting water into the water storage tank.

According to the pneumatic immersion device and the immersion method thereof, the pneumatic lifting device is adopted, so that fire extinguishing treatment can be performed on the battery pack which is on fire and smokes, and the test safety is improved.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 shows a schematic structural diagram one of a pneumatic immersion device according to an embodiment of the present invention.

Fig. 2 shows a schematic structural diagram two of a pneumatic immersion device according to an embodiment of the present invention.

Fig. 3 shows a partial cross-sectional view of a pneumatic immersion device according to another embodiment of the present invention.

Fig. 4 shows a top view of a pneumatic immersion device according to another embodiment of the present invention.

Wherein the figures include the following reference numerals:

pneumatic immersion apparatus 100

Water storage tank 101

Pneumatic lifting device 102

Bracket 103

Fire hose 104

Battery pack 105

Piston 106

Lifting sleeve 107

Compressed air line 108

Guide tube 109

Support 110

Detailed Description

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

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. 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, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Fig. 1 shows a schematic structural diagram one of a pneumatic immersion device according to an embodiment of the present invention. Fig. 2 shows a schematic structural diagram two of a pneumatic immersion device according to an embodiment of the present invention. As shown, the present invention provides a pneumatic immersion apparatus 100. The pneumatic submergence device 100 mainly comprises a water storage tank 101, a plurality of pneumatic lifting devices 102, a bracket 103 and a fire hose 104.

Wherein the reservoir 101 is open at the top.

A plurality of pneumatic lifting devices 102 are vertically disposed at the bottom of the reservoir 101.

The carriage 103 is horizontally fixed to the plurality of pneumatic lifting devices 102.

A fire hose 104 is arranged above the water reservoir 101 and on one side of the water reservoir 101, the fire hose 104 being connected to a water source. If desired, water may be injected directly into the reservoir 101 by opening the water valve of the fire hose 104.

During a test of the battery pack 105 of the new energy vehicle, the battery pack 105 is fixed to the bracket 103. The pneumatic lifting device 102 is activated to move the carriage 103 in a vertical direction and to lower the carriage 103 to the bottom of the reservoir 101. It will be readily appreciated that in the test state, the plurality of pneumatic lifters 102 simultaneously raise the tray 103 to maintain the battery pack 105 at a set height, as shown in fig. 1. In this state, the battery pack 105 may be tested. In case of an emergency such as fire or smoke in the battery pack 105, the pneumatic lifting device 102 is controlled to fall, and the bracket 103 and the battery pack 105 are lowered to the bottom of the water storage tank 101 as shown in fig. 2. The water valve of the fire hose 104 is opened to directly inject water into the water storage tank 101, and the battery pack 105 is put out fire.

Because the test equipment is placed in a laboratory, under the emergency conditions of fire and the like, the power supply of the laboratory is cut off, only an emergency lighting power supply is left, and the power supply power is not enough to drive a mechanical or hydraulic type lifting device. Therefore, the scheme specially selects pneumatic control, the work can be unlimited in an emergency, and the pneumatic lifting device 102 can bear the weight load of the battery pack 105 in a normal test.

Fig. 3 shows a partial cross-sectional view of a pneumatic immersion device according to another embodiment of the present invention. Fig. 4 shows a top view of a pneumatic immersion device according to another embodiment of the present invention. As shown, the pneumatic submerging device 100 preferably includes 4 pneumatic lifting devices 102, which are respectively disposed at four corners of the water storage tank 101, so as to stably support the bracket 103 and maintain lifting stability.

Preferably, pneumatic lift 102 includes a piston 106 and a lift sleeve 107. The lifting sleeve 107 is sleeved on the piston 106, and a compressed air pipeline 108 is connected to the bottom of the piston 106. As shown in fig. 3, the bottom of the piston 106 extends beyond the bottom of the reservoir 101 and the compressed air line 108 opens directly into the bottom of the piston 106. Compressed air is injected into the piston 106 and, under air pressure, lifts the lift sleeve 107 to a desired position. A guide tube 109 is arranged in the lifting sleeve 107 and is matched with the top of the piston 106, and the guide tube 109 is used for ensuring that the lifting sleeve 107 ascends and descends in the vertical direction and avoiding deflection so as to ensure that the bracket 103 stably moves in the vertical direction.

Preferably, a support 110 is provided at the bottom periphery of the lifting sleeve 107. The bracket 110 is used to carry the carriage 103. The bracket 103 is rectangular, and four corners of the bracket 103 are fixed to the brackets 110 of the lifting sleeves 107 provided on the pneumatic lifting devices 102 at the four corners of the water reservoir 101.

Preferably, a vent valve (not shown) is provided on the piston 106 and/or the lift sleeve 107. Once the air valve is opened, the lifting sleeve 107 naturally descends under the gravity of the battery pack 105 and the bracket 103, and the bracket 103 and the battery pack 105 are driven to sink to the bottom of the water storage tank 101.

Preferably, the diameter of the piston 106 is 70-100 mm.

Preferably, the bracket 103 can support the weight of the battery pack 105 of

Where d is the piston 106 diameter. The diameter of the piston 106 is adjusted to make the weight borne by the bracket 103 be 1000-2000 kg, so that the weight requirement of each type of battery pack 105 can be met.

Preferably, the compressed air line 108, the air relief valve, and the outlet valve of the fire hose 104 are remotely connected to a control device (not shown). The control device is used for controlling the operation of the compressed air pipeline 108, the air release valve and the water outlet valve so as to ensure that all parts of the pneumatic immersion device 100 work cooperatively and improve the safety test effect.

The invention also provides an immersion method which is suitable for the pneumatic immersion device 100. The immersion method comprises the following steps:

compressed air line 108 is opened to allow compressed gas to enter piston 106. The 4 pneumatic lifting devices 102 act synchronously, compressed gas jacks up the lifting sleeve 107, and the lifting sleeve 107 drives the bracket 103 to rise to a set position. The pneumatic line 108 remains normally open, keeping the height position of the battery pack 105 constant during testing of the battery pack 105.

In the event of an emergency, such as a fire or smoke in the battery pack 105, the control device shuts off the compressed air line 108 and opens the air valve. The pneumatic lift 102 is gradually depressurized and the carriage 103 and battery pack 105 sink to the bottom of the reservoir 101 under the weight of the carriage 103 and battery pack 105. By way of example and not limitation, a certain amount of water may be pre-injected into the bottom of the reservoir to facilitate timely fire suppression.

The water outlet valve of the fire hose 104 is opened, water is injected into the water storage tank 101 along the black arrow direction in fig. 2, the battery pack 105 in an accident is extinguished, and the safety of other facilities, equipment and personnel in the laboratory is ensured.

According to the pneumatic immersion device and the immersion method thereof, the pneumatic lifting device is adopted, so that the battery pack which is on fire and smokes can be put out a fire, the test safety is improved, and the personal and property safety is ensured.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. A pneumatic immersion apparatus comprising:

a water storage tank;

2. The pneumatic immersion device as claimed in claim 1, wherein the pneumatic immersion device comprises 4 pneumatic lifting devices, each provided at a corner of the reservoir.

3. The pneumatic immersion apparatus as claimed in claim 1, wherein the pneumatic lifting means comprises a piston and a lifting sleeve, the lifting sleeve is sleeved on the piston, and a compressed air pipeline is connected to the bottom of the piston.

4. A pneumatic immersion apparatus according to claim 3, wherein a support is provided at the bottom periphery of the lifting sleeve, the support being adapted to carry the carriage.

5. A pneumatic immersion device as claimed in claim 3, wherein a bleed valve is provided on the piston and/or the lifting sleeve.

6. A pneumatic immersion device as claimed in claim 3, wherein the piston has a diameter of 70 to 100 mm.

7. A pneumatic immersion unit as claimed in claim 3, wherein the carriage bears a weight of 1000 to 2000 kg.

8. The pneumatic submerging device of claim 5, wherein the compressed air line, the air relief valve, and the water outlet valve of the fire hose are remotely connected to a control device for operating the compressed air line, the air relief valve, and the water outlet valve.

9. An immersion method applicable to the pneumatic immersion apparatus of claim 8, wherein the immersion method comprises the steps of: