Water mist nozzle

Abstract

The utility model provides a water mist nozzle, which belongs to the technical field of fire-fighting equipment and comprises a nozzle body, an absorbing layer is arranged in the nozzle body, and the absorbing layer is porous ceramic with a plurality of pores; the connecting pipeline is fixedly connected to the end part of the spray head body, and a filter screen is arranged in the connecting pipeline. According to the utility model, corrosive substances in water are firstly filtered through the filter screen arranged in the spray head pipeline, so that the corrosive substances entering the spray head body are reduced, and the corrosive substances are further reduced after the water entering the spray head body passes through the absorbing layer; and the absorbing layer can absorb corrosive substances attached to the inner wall of the spray head body, corrosion of the spray head body is avoided, and the service life of the spray head is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting devices, and particularly relates to a water mist nozzle. Background Art

[0002] A high-pressure water mist nozzle is a device that uses high-pressure technology to convert water into fine water droplets. These tiny water droplets can quickly spread and cover a vast area. This type of nozzle is commonly used in fire extinguishing, dust suppression, temperature reduction, humidification, and other applications, with a wide range of application fields. The water mist nozzle atomizes water into extremely fine water droplets under high pressure through a specially designed nozzle, which can quickly evaporate and absorb a large amount of heat. At the same time, due to the relatively small surface tension of the water droplets, the chance of contact with the fire source is increased.

[0003] In order to improve the corrosion resistance of existing high-pressure water mist nozzles, some nozzles use corrosion-resistant coatings. However, due to the limited adhesion and durability of the coatings, the coatings may peel off after long-term use, losing their protective effect. There are also some nozzles that only use a single filter screen to filter particles or impurities in the water, and the filtering effect is poor, allowing particles to enter the interior of the nozzle along with the water flow, accelerating the corrosion process of the nozzle. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the present utility model is to overcome the defects of poor corrosion resistance and short service life of high-pressure fine water mist nozzles in the prior art, so as to provide a water mist nozzle.

[0005] To solve the above technical problem, the present utility model provides a water mist nozzle, comprising:

[0006] A nozzle body, an absorption layer is arranged inside the nozzle body, and the absorption layer is a porous ceramic having a plurality of capillary pores;

[0007] A connecting pipe, fixedly connected to the end of the nozzle body, and a filter screen is arranged inside the connecting pipe.

[0008] Optionally, the absorption layer is closely attached to the circumferential surface inside the nozzle body.

[0009] Optionally, the filter screen includes a first filter screen and a second filter screen, and both the first filter screen and the second filter screen have a plurality of filter through holes.

[0010] Optionally, a fixing rod is connected to the bottom of the first filter screen, the second filter screen is arranged parallel to the lower part of the first filter screen, and the second filter screen is connected to the bottom of the first filter screen through the fixing rod.

[0011] Optionally, there are a plurality of the fixing rods evenly distributed circumferentially around the first filter screen.

[0012] Optionally, the inner wall of the top of the connecting pipe has a positioning groove, and the outer wall of the first filter screen has a positioning block for embedding in the positioning groove.

[0013] Optionally, the bottom surface of the positioning groove has a blind hole for connecting a fastener, and the positioning block has a fixing through hole in the vertical direction for passing through the fastener.

[0014] Optionally, there are several positioning blocks evenly distributed circumferentially around the first filter screen.

[0015] Optionally, the outer wall of the connecting pipe has a thread.

[0016] Optionally, a sealing washer is sleeved on the bottom of the outer wall of the connecting pipe.

[0017] The technical solution of the present utility model has the following advantages:

[0018] 1. The water mist nozzle provided by the present utility model connects the nozzle with the water pipe through a connecting pipe. The filter screen arranged in the nozzle pipe first filters the corrosive substances in the water, reducing the entry of corrosive substances into the interior of the nozzle body. After the water entering the interior of the nozzle body passes through the absorption layer, the corrosive substances are further reduced, and the absorption layer can absorb the corrosive substances attached to the inner wall of the nozzle body, avoiding corrosion of the nozzle body and increasing the service life of the nozzle.

[0019] 2. The water mist nozzle provided by the present utility model has the absorption layer closely attached to the circumferential surface inside the nozzle body. The contact with the inner wall of the nozzle body can ensure that the absorption layer is placed on the water flow path to filter the water flow and avoid corrosion caused by the contact between corrosive substances and the inner wall of the nozzle body.

[0020] 3. The water mist nozzle provided by the present utility model includes a first filter screen and a second filter screen. Both the first filter screen and the second filter screen have a number of filter through holes. Through the arrangement of multiple filter screens, the filtering effect is enhanced.

[0021] 4. The water mist nozzle provided by the present utility model has the first filter screen and the second filter screen arranged in parallel, and the two filter screens are connected by fixing rods, which can ensure that the water flow passes through continuous multiple filtrations.

[0022] 5. The water mist nozzle provided by the present utility model has several fixing rods evenly distributed circumferentially around the first filter screen. Through the connection of several fixing rods, the stable connection between the first filter screen and the second filter screen is realized, and the stability of the connection of the filter screen is improved.

[0023] 6. The water mist nozzle provided by the present utility model has several positioning grooves on the inner wall of the top of the connecting pipe. The outer wall of the first filter screen has positioning blocks for embedding into the positioning grooves. Through the cooperation of the positioning grooves and the positioning blocks, the filter screen is limited, improving the installation efficiency and facilitating the cleaning and replacement of the filter screen.

[0024] 7. The water mist nozzle provided by the present utility model has blind holes for connecting fasteners on the bottom surface of the positioning groove, and the positioning block has fixing through holes in the vertical direction for passing through the fasteners. The filter screen is fixed through the cooperation of the blind hole and the fastener of the positioning block, ensuring that the filter screen can always maintain its position under the impact of high-pressure water flow.

[0025] 8. The water mist nozzle provided by the present utility model has several positioning blocks evenly distributed circumferentially around the first filter screen. Through the cooperation of multiple positioning blocks and the positioning grooves, the installation stability of the filter screen is improved.

[0026] 9. The water mist nozzle provided by the present utility model has threads on the outer wall of the connecting pipe to complete the effective connection between the nozzle and the water pipe.

[0027] 10. The water mist nozzle provided by the present utility model has a sealing gasket sleeved on the bottom of the outer wall of the connecting pipe. Through the sealing gasket, the sealing performance of the connection is ensured, avoiding water source leakage. Description of the Drawings

[0028] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a perspective view of a specific embodiment of the water mist nozzle provided in the embodiment of the present utility model;

[0030] Figure 2 It is a perspective view of a specific embodiment of the water mist nozzle provided in the embodiment of the present utility model;

[0031] Figure 3 It is a front view cross-sectional view of a specific embodiment of the water mist nozzle provided in the embodiment of the present utility model;

[0032] Figure 4 It is a perspective cross-sectional view of a specific embodiment of the water mist nozzle provided in the embodiment of the present utility model;

[0033] Figure 5 It is Figure 3 a perspective view of the filter screen in

[0034] Description of Reference Numerals:

[0035] 1. Sprinkler body; 2. Absorbing layer; 3. Connecting pipe; 4. Filter screen; 5. First filter screen; 6. Second filter screen; 7. Fixed rod; 8. Positioning groove; 9. Blind hole; 10. Positioning block; 11. Fastener; 12. Thread; 13. Sealing washer. Detailed Embodiment

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0039] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0040] As Figure 1As shown in the figure, a specific implementation of the water mist nozzle provided in this embodiment includes: a nozzle body 1 and a connecting pipe 3. An absorption layer 2 is provided inside the nozzle body 1, and the absorption layer 2 is a porous ceramic with a number of capillary pores. The connecting pipe 3 is fixedly connected to the end of the nozzle body 1, and a filter screen 4 is provided inside the connecting pipe 3. Specifically, the nozzle body 1 has a conical inner cavity, and a porous ceramic is attached to the inner wall of the conical inner cavity to form the absorption layer 2, and a plurality of outlets are evenly arranged on the outer side wall of the conical inner cavity.

[0041] As Figure 1 shown in the figure, for the water mist nozzle provided in this embodiment, first, the corrosive substances in the water are filtered by the filter screen 4 provided in the connecting pipe 3, reducing the entry of corrosive substances into the inside of the nozzle body 1. Secondly, after the water entering the inside of the nozzle body 1 passes through the absorption layer 2, the corrosive substances are further reduced, and a number of capillary pores on the absorption layer 2 can absorb the corrosive substances attached to the inner wall of the nozzle body 1, avoiding corrosion of the nozzle body 1 and increasing the service life of the nozzle.

[0042] As Figure 3 shown in the figure, in the water mist nozzle provided in this embodiment, the absorption layer 2 is closely attached to the circumferential surface inside the nozzle body 1. Such a setting can ensure that the absorption layer 2 is placed on the water flow path, can absorb corrosive substances, and avoid contact with the inner wall of the nozzle body 1 to cause corrosion. Of course, the above description is not restrictive. In some alternative embodiments, the absorption layer 2 can also be placed on the circumferential and axial inner walls of the nozzle body 1.

[0043] As Figure 3 、 Figure 4 shown in the figure, in the water mist nozzle provided in this embodiment, the filter screen 4 includes a first filter screen 5 and a second filter screen 6, and both the first filter screen 5 and the second filter screen 6 have a number of filter through holes. By setting multiple layers of filter screens, the filtering effect is enhanced. Of course, the above description is not restrictive. In some alternative embodiments, the filter screen can also have more filter screens arranged at intervals up and down.

[0044] As Figure 5 shown in the figure, in the water mist nozzle provided in this embodiment, a fixing rod 7 is connected to the bottom of the first filter screen 5, the second filter screen 6 is arranged parallel to the lower part of the first filter screen 5, and the second filter screen 6 is connected to the bottom of the first filter screen 5 through the fixing rod 7. Such a setting can ensure continuous filtration of the water flow. Of course, the above description is not restrictive. In some alternative embodiments, the filter screen 4 can also adopt other structures, such as a multi-layer filtering structure with inner and outer sleeves.

[0045] As Figure 4As shown, in the water mist nozzle provided in this embodiment, there are several fixing rods 7 evenly distributed circumferentially around the first filter screen 5. In this way, the stable connection between the first filter screen 5 and the second filter screen 6 is achieved, and the stability and service life of the filter screen 4 are improved. Of course, the above description is not restrictive. In some alternative embodiments, the fixing rod 7 can also be omitted.

[0046] As Figure 2 shown, in the water mist nozzle provided in this embodiment, the inner wall of the top of the connecting pipe 3 has a positioning groove 8, and the outer wall of the first filter screen 5 has a positioning block 10 for embedding in the positioning groove 8. The cooperation of the positioning groove 8 and the positioning block 10 improves the installation efficiency and facilitates the cleaning and replacement of the filter screen 4. Of course, the above description is not restrictive. In some alternative embodiments, other methods can be selected for positioning the filter screen 4, such as a positioning pin.

[0047] As Figure 3 shown, in the water mist nozzle provided in this embodiment, the bottom surface of the positioning groove 8 has a blind hole 9 for connecting a fastener 11, and the positioning block 10 has a fixing through hole for passing through the fastener 11 in the vertical direction. In this way, the filter structure is fixed through the cooperation of the blind hole 9 and the fastener 11 of the positioning block 10. Of course, the above description is not restrictive. In some alternative embodiments, the blind hole 9 can be omitted.

[0048] As Figure 4 shown, in the water mist nozzle provided in this embodiment, there are several positioning blocks 10 evenly distributed circumferentially around the first filter screen 5. In this way, the installation stability of the filter structure can be improved through the cooperation of multiple positioning blocks 10 and the corresponding positioning grooves 8. Of course, the above description is not restrictive. In some alternative embodiments, the number of the positioning blocks 10 can also be only one.

[0049] As Figure 3 shown, in the water mist nozzle provided in this embodiment, the outer wall of the connecting pipe 3 has a thread 12. In this way, it is connected to the water pipe through the thread 12. Of course, the above description is not restrictive. In some alternative embodiments, the thread can also be placed on the inner wall of the connecting pipe.

[0050] As Figure 1 shown, in the water mist nozzle provided in this embodiment, a sealing gasket 13 is sleeved on the bottom of the outer wall of the connecting pipe 3. In this way, the sealing of the connection is ensured through the sealing gasket 13, and water leakage is avoided. Of course, the above description is not restrictive. In some alternative embodiments, other sealing methods can be selected, such as sealing with a sealing tape.

[0051] Working principle:

[0052] Connect the nozzle with the water pipe through the connecting pipe 3. The two layers of filter screens arranged in the connecting pipe 3 first filter the corrosive substances in the water, reducing the entry of corrosive substances into the interior of the nozzle body 1. The filter screen 4 is fixedly connected to the inner wall of the nozzle by threaded connection with the positioning block 10, which is convenient for later cleaning and replacement. After the water entering the interior of the nozzle body 1 passes through the absorption layer 2, the corrosive substances are further reduced, and the absorption layer 2 can absorb the corrosive substances attached to the inner wall of the nozzle body 1, avoiding corrosion of the nozzle body 1, improving the corrosion resistance of the nozzle, and increasing the service life of the nozzle.

[0053] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A water mist nozzle, characterized in that, Comprising: A nozzle body (1), an absorption layer (2) is arranged inside the nozzle body (1), and the absorption layer (2) is a porous ceramic having a plurality of capillary pores; A connecting pipe (3), fixedly connected to the end of the nozzle body (1), and a filter screen (4) is arranged inside the connecting pipe (3).

2. The water mist nozzle according to claim 1, wherein, The absorption layer (2) is closely attached to the circumferential surface inside the nozzle body (1).

3. The water mist nozzle according to claim 1, characterized in that, The filter screen (4) includes a first filter screen (5) and a second filter screen (6), and both the first filter screen (5) and the second filter screen (6) have a plurality of filter through holes.

4. The water mist nozzle according to claim 3, characterized in that, A fixing rod (7) is connected to the bottom of the first filter screen (5), the second filter screen (6) is arranged parallel to the lower side of the first filter screen (5), and the second filter screen (6) is connected to the bottom of the first filter screen (5) through the fixing rod (7).

5. The water mist nozzle according to claim 4, wherein, There are a plurality of the fixing rods (7) evenly distributed circumferentially around the first filter screen (5).

6. The water mist nozzle according to claim 4, characterized in that, The inner wall of the top of the connecting pipe (3) has a positioning groove (8), and a positioning block (10) for embedding into the positioning groove (8) is provided on the outer wall of the first filter screen (5).

7. The water mist nozzle according to claim 6, wherein The bottom surface of the positioning groove (8) has a blind hole (9) for connecting a fastener (11), and the positioning block (10) has a fixing through hole for passing through the fastener (11) in the vertical direction.

8. The water mist nozzle according to claim 6, characterized in that There are a plurality of the positioning blocks (10) evenly distributed circumferentially around the first filter screen (5).

9. The water mist nozzle according to any one of claims 1-8, characterized in that, The outer wall of the connecting pipe (3) has a thread (12).

10. The water mist nozzle according to claim 9, characterized in that, A sealing washer (13) is sleeved on the bottom of the outer wall of the connecting pipe (3).

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