High-efficiency fire-retardant atomizing nozzle for fire retardance of lithium battery

Abstract

The utility model provides an efficient fire-retardant atomizing spray head for lithium battery fire retardance, which comprises a water storage cavity, a spray head body and a channel arranged on the spray head body, a sealing structure is sleeved outside the water storage cavity and the spray head body, a micro motor is mounted on the upper surface of the water storage cavity, and the micro motor is connected with the spray head body. The output end of the micro motor is fixedly connected with a rotating rod, the bottom end of the rotating rod extends into the water storage cavity, and the outer surface of the rotating rod is fixedly connected with two transverse plates. Through the cooperation of the motor, the rotating rod, the transverse plate and the dispersing knife, when the motor works to drive the dispersing knife to rotate at a high speed, aggregate possibly formed by a film-forming agent in water can be broken, molecules of the film-forming agent can be more uniformly dispersed in the water, larger water mass can be cut into fine water drops, the mixing uniformity of the water and the film-forming agent is greatly improved, and the dispersion effect of the water and the film-forming agent is improved. And the blocking phenomenon caused by the problems of over-high local concentration, particle aggregation and the like of water with a film-forming agent in the channel is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a spray head field especially relates to a lithium battery fire -resistant high -efficient fire -resistant atomizing spray head. BACKGROUND

[0002] In recent years with the large -scale application of lithium battery in new energy automobile, energy storage system etc. field, lithium battery fire accident is frequent, lithium battery has the characteristics of high energy density, once the fire, the fire spreads rapidly, can release a large amount of heat, and is accompanied by the production of toxic and harmful gas, and the difficulty of extinguishing is extremely great.

[0003] When lithium battery fire is prevented, film forming agent needs to be added in water, and the atomizing spray head sprays the water added with film forming agent on the surface of the battery to form an insulating layer, thereby playing a fire -resistant effect, however, when the atomizing spray head sprays the water added with film forming agent, the film forming agent changes the surface tension, viscosity and other physical properties of the water solution, causing the internal flow channel of the conventional spray head to be prone to blockage, thereby affecting the fire -resistant effect of the lithium battery, therefore, we provide a lithium battery fire -resistant high -efficient fire -resistant atomizing spray head. SUMMARY

[0004] The utility model provides a lithium battery fire -resistant high -efficient fire -resistant atomizing spray head to solve the technical problem existing in the above -mentioned background art.

[0005] The purpose and effect of the utility model of a kind of lithium battery fire -resistant high -efficient fire -resistant atomizing spray head are achieved by the following specific technical means: a kind of lithium battery fire -resistant high -efficient fire -resistant atomizing spray head, including water storage cavity, spray head body is set on the passageway of spray head body, the outside of water storage cavity and the outside of spray head body are collectively equipped with sealing structure, the upper surface of water storage cavity is equipped with micro motor, the output end of micro motor is fixedly connected with rotating rod, the bottom end of rotating rod extends to the inside of water storage cavity, the outer surface of rotating rod is fixedly connected with two horizontal plates, the upper surface of each horizontal plate and the bottom surface of horizontal plate are fixedly connected with a group of equidistantly arranged dispersion knives, the spray head body is provided with anti -blocking structure.

[0006] Preferably, the anti -blocking structure includes a filter membrane arranged in the interior of the spray head body, and the diameter of the filter membrane is 80 to 120 microns.

[0007] Preferably, the anti -blocking structure further includes a spiral flow guide vane arranged in the interior of the passageway, and the outer diameter of the spiral flow guide vane is adapted to the diameter of the passageway.

[0008] Preferably, the sealing structure includes a threaded sleeve ring threadedly connected to the outer surface of the water storage cavity, and the inner wall of the bottom end of the threaded sleeve ring is threadedly connected to the outer surface of the spray head body.

[0009] Preferably, the upper surface of the threaded sleeve and the bottom surface of the threaded sleeve are provided with annular sealing pads, and the inner sides of the two annular sealing pads are in contact with the outer surface of the water storage cavity and the outer surface of the nozzle body respectively.

[0010] Preferably, the inner wall of the water storage cavity is fixedly connected with a blocking plate, and the middle part of the blocking plate is provided with a through port.

[0011] Preferably, the inner wall of the water storage cavity is fixedly connected with an annular sealing frame, and the outer surface of the bottom end of the annular sealing frame is in contact with the inner wall of the nozzle body.

[0012] Preferably, the outer part of the water storage cavity is provided with a water inlet, and the inner part of the water inlet is provided with a filter screen.

[0013] Beneficial effects:

[0014] 1. When the motor works to drive the dispersing knife to rotate at high speed, the film-forming agent in the water can be broken into small water droplets, greatly improving the mixing uniformity of the water and the film-forming agent, and effectively avoiding the blocking phenomenon caused by local high concentration and particle agglomeration of the water containing the film-forming agent in the channel.

[0015] 2. By cooperating the filter membrane with the spiral flow guide piece, the filter membrane can remove fine impurities in the water, and the spiral flow guide piece can make the spiral flow wash the channel, effectively prevent the blocking situation, and further ensure the fire resistance effect of the lithium battery. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole three-dimensional structure schematic diagram of the utility model.

[0017] Figure 2 It is a whole three-dimensional structure schematic diagram of the utility model.

[0018] Figure 3 It is a whole three-dimensional structure schematic diagram of the utility model.

[0019] Figure 4 It is a whole three-dimensional structure schematic diagram of the utility model.

[0020] Figures 1-4 In the middle, the correspondence between the component name and the drawing number is:

[0021] 1. Water storage chamber; 2. Nozzle body; 3. Channel; 4. Sealing structure; 401. Threaded collar; 402. Annular sealing gasket; 5. Water inlet; 6. Micro motor; 7. Filter screen; 8. Rotating rod; 9. Dispersing knife; 10. Horizontal plate; 11. Baffle plate; 12. Annular sealing frame; 13. Spiral guide vane; 14. Filter membrane. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] As attached Figure 1 Appendix Figure 2 With appendix Figure 4 As shown: A high-efficiency flame-retardant atomizing nozzle for lithium battery flame retardancy includes a water storage chamber 1, a nozzle body 2, and a channel 3 disposed on the nozzle body 2. The water storage chamber 1 is provided with a water inlet 5 on the outside and a filter screen 7 is provided inside the water inlet 5. By injecting water into the water storage chamber 1 from the water inlet 5, the filter screen 7 will first filter out large impurities in the water, thereby effectively preventing impurities from clogging the channel 3.

[0024] As attached Figure 1 With appendix Figure 3 As shown: A sealing structure 4 is fitted around the exterior of the water storage chamber 1 and the exterior of the nozzle body 2. The sealing structure 4 includes a threaded collar 401 threaded to the outer surface of the water storage chamber 1. The inner wall of the bottom end of the threaded collar 401 is threaded to the outer surface of the nozzle body 2. The threaded collar 401 can be used to connect the water storage chamber 1 and the nozzle body 2. Both the upper and bottom surfaces of the threaded collar 401 are provided with annular sealing gaskets 402. The inner surfaces of the two annular sealing gaskets 402 are in contact with the outer surfaces of the water storage chamber 1 and the nozzle body 2, respectively. The annular sealing gaskets 402 can seal the gap between the threaded collar 401 and the water storage chamber 1 and the nozzle body 2 to prevent pressure leakage.

[0025] As attached Figure 1 With appendix Figure 2As shown: the upper surface of the water storage cavity 1 is provided with a micro motor 6, the output end of the micro motor 6 is fixedly connected with a rotating rod 8, the bottom end of the rotating rod 8 extends to the inside of the water storage cavity 1, the outer surface of the rotating rod 8 is fixedly connected with two horizontal plates 10, the upper surface of each horizontal plate 10 and the bottom surface of the horizontal plate 10 are both fixedly connected with a group of dispersed knives 9 arranged at equal distances, the working of the micro motor 6 can drive the rotating rod 8 to rotate, at the same time, the horizontal plate 10 drives the dispersed knife 9 to rotate, the dispersed knife 9 can generate strong shearing force, easily break these aggregates, let the film forming agent molecules break free from the bondage, uniformly dispersed in water, at the same time, the originally larger water group in the water body is cut into countless small water beads under the continuous cutting of the dispersed knife 9, these small water beads have larger specific surface area, greatly increase the contact area of the film forming agent and water, greatly improve the mixing uniformity of the two. The fluid with uniform mixing has better flowability, effectively avoids the blocking phenomenon of water with film forming agent in the channel 3 due to local concentration too high, particle aggregation and other problems.

[0026] As shown in the accompanying drawings Figure 2 As shown: the inner wall of the water storage cavity 1 is fixedly connected with a baffle 11, the middle part of the baffle 11 is provided with a through hole, the baffle 11 can prolong the residence time of water in the water storage cavity 1, so that the dispersed knife 9 can cut and disperse the water for enough time, the inner wall of the water storage cavity 1 is fixedly connected with an annular sealing frame 12, the outer surface of the bottom end of the annular sealing frame 12 is in contact with the inner wall of the nozzle body 2, the annular sealing frame 12 can reseal the gap between the water storage cavity 1 and the nozzle body 2, effectively prevent the leakage.

[0027] As shown in the accompanying drawings Figure 4 As shown: the nozzle body 2 is provided with an anti-blocking structure, the anti-blocking structure includes a filter membrane 14 arranged in the nozzle body 2, the diameter of the filter membrane 14 is 80 to 120 microns, the filter membrane 14 can filter the water with film forming agent again, can remove the residual fine impurities in the water, the film forming agent particles which are not dispersed and the flocculation generated by stirring, further improve the purity of the water body, the anti-blocking structure further includes a spiral flow guide piece 13 arranged in the channel 3, and the outer diameter of the spiral flow guide piece 13 is matched with the diameter of the channel 3, the spiral flow guide piece 13 can guide the water flow to form a spiral advancing state, not only makes the water flow more evenly distributed in the channel 3, avoids the abnormal situation of local flow rate, but also can continuously flush the inner wall of the channel 3, timely removes the impurities which may be attached to the wall of the channel 3, effectively prevents the channel 3 from being blocked, ensures that the water with film forming agent can be smoothly sprayed out of the channel 3, rapidly forms a uniform and dense fireproof isolation film on the surface of the lithium battery, fully plays the fireproof role of the film forming agent, greatly improves the fireproof effect on the lithium battery fire.

[0028] Working principle: when the water with film-forming agent into the water storage cavity 1 through the water inlet 5, the filter screen 7 located at the entrance of the water storage cavity 1, will be the first filtration of water, effectively intercept the volume of larger impurities in water, then control the micro motor 6 work, the rotating rod 8 will drive the horizontal plate 10 synchronous rotation, while the horizontal plate 10 drive dispersion knife 9 around the axis of rotating rod 8 do circular motion, dispersion knife 9 in the process of high speed rotation, will be strong stirring and cutting with film-forming agent water, can break the film-forming agent in water may form the agglomerate, let the film-forming agent molecules more evenly dispersed in water, also can cut the larger water group into small water beads, greatly improve the mixing uniformity of water and film-forming agent, stirring after the water will flow down to the filter membrane 14 located at the bottom of the water storage cavity 1, filter membrane 14 will be again filtered with film-forming agent water, can remove the residual impurities in water, film-forming agent micro particles and not dispersed, and the floc generated by stirring, further improve the purity of water, with the purification of water into the channel 3, the spiral flow guide vane 13 installed in the inner wall of the channel 3 will be spiral flow guide, make water spiral motion form scouring force, prevent the film-forming agent in the inner wall of the channel 3 deposition, realize the self-cleaning of the channel 3, can effectively prevent the occurrence of blockage, further guarantee the fire resistance effect of lithium battery.

Claims

1. A high-efficiency fire-retardant atomizing nozzle for lithium battery fire resistance, comprising a water storage cavity (1), a nozzle body (2), and a channel (3) provided on the nozzle body (2), characterized in that: The outer part of the water storage cavity (1) and the outer part of the nozzle body (2) are jointly sleeved with a sealing structure (4), the upper surface of the water storage cavity (1) is provided with a micro motor (6), the output end of the micro motor (6) is fixedly connected with a rotating rod (8), the bottom end of the rotating rod (8) extends to the inside of the water storage cavity (1), the outer surface of the rotating rod (8) is fixedly connected with two transverse plates (10), the upper surface and the bottom surface of each transverse plate (10) are fixedly connected with a group of dispersed knives (9) arranged at equal distances, and the nozzle body (2) is provided with an anti-blocking structure.

2. The high efficiency flame arrestant atomizing nozzle for lithium battery flame arrestant according to claim 1, characterized in that: The anti-blocking structure comprises a filter membrane (14) arranged in the nozzle body (2), and the diameter of the filter membrane (14) is 80-120 microns.

3. The high efficiency flame arrestant atomizing nozzle for lithium battery flame arrestant according to claim 1, characterized in that: The anti-blocking structure further comprises a spiral flow guide vane (13) arranged in the channel (3), and the outer diameter of the spiral flow guide vane (13) is matched with the diameter of the channel (3).

4. The high efficiency flame arrestant atomizing nozzle for lithium battery flame arrestant according to claim 1, characterized in that: The sealing structure (4) comprises a threaded sleeve ring (401) threadedly connected to the outer surface of the water storage cavity (1), and the inner wall of the bottom end of the threaded sleeve ring (401) is threadedly connected with the outer surface of the nozzle body (2).

5. The high efficiency flame arrestant atomizing nozzle for lithium battery flame arrestant according to claim 4, characterized in that: The upper surface and the bottom surface of the threaded sleeve ring (401) are provided with annular sealing pads (402), and the inner sides of the two annular sealing pads (402) are respectively in contact with the outer surface of the water storage cavity (1) and the outer surface of the nozzle body (2).

6. The high efficiency flame arrestant atomizing nozzle for lithium battery flame arrestant according to claim 1, characterized in that: The inner wall of the water storage cavity (1) is fixedly connected with a blocking plate (11), and the middle part of the blocking plate (11) is provided with an opening.

7. The high efficiency flame arrestant atomizing nozzle for lithium battery flame arrestant according to claim 1, characterized in that: The inner wall of the water storage cavity (1) is fixedly connected with an annular sealing frame (12), and the outer surface of the bottom end of the annular sealing frame (12) is in contact with the inner wall of the nozzle body (2).

8. The high efficiency flame arrestant atomizing nozzle for lithium battery flame arrestant according to claim 1, characterized in that: The outer part of the water storage cavity (1) is provided with a water inlet (5), and the inside of the water inlet (5) is provided with a filter screen (7).

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