Spraying device of compressed air foam fire extinguishing system

Abstract

The utility model relates to the technical field of fire extinguishing, and discloses a spraying device of a compressed air foam fire extinguishing system, which comprises a foam storage tank and a top plate fixed on a ceiling, the surface of the foam storage tank is communicated with a spraying pipeline, and the other end of the spraying pipeline is communicated with a connecting hose. The surface of the connecting hose is rotationally communicated with an acting pipe, the surface of the acting pipe is communicated with a foam spraying head, and the mobile mechanism is arranged in an inner cavity of the top plate; when the fire extinguishing system is started, the moving mechanism can work under the control of the fire extinguishing system, then the acting pipe and the foam spraying head can transversely move under the action of the moving mechanism, the working area of the acting pipe and the working area of the foam spraying head are adjusted, and the foam spraying head can be adjusted under the action of the adjusting mechanism. And the angles of the acting pipe and the foam spraying head can be changed, so that spraying is more accurate, and the fire extinguishing practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire extinguishing technology field, concretely is a kind of compressed air foam fire extinguishing system's sprinkling device. BACKGROUND

[0002] Compressed air foam fire extinguishing is a kind of system using compressed air foam to extinguish fire.The system is discharged by traditional fire pump, adds certain proportion of concentrated foam liquid, then uses the air discharged by compressed air pump to carry out strong stirring in fire water pipe or hose, forms high-energy fire extinguishing foam.This kind of foam is produced by water, foam liquid and air (or nitrogen) fully mixed under certain pressure, can more effectively cover fire source and isolate oxygen, so as to realize the purpose of rapid fire extinguishing.

[0003] At present, fixed pipe compressed air foam fire extinguishing system is used in part scene, pipe is arranged in scene wallboard or top, when fire occurs, air foam is sprayed in scene by driving system, to achieve the purpose of extinguishing fire, but pipe and spray head are mostly fixedly arranged, when fire extinguishing system starts, foam can only be sprayed in specified range, if fire source is not in foam spraying range or is not sprayed comprehensively, then it will affect fire extinguishing effect, UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of compressed air foam fire extinguishing system's sprinkling device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of compressed air foam fire extinguishing system's sprinkling device, including foam storage tank and top plate fixed to ceiling, the surface of the foam storage tank is communicated with spray pipeline, another end of the spray pipeline is communicated with connecting hose, the surface of the connecting hose is rotatably communicated with action pipe, the surface of the action pipe is communicated with foam spray head, further including:

[0006] Mobile mechanism is arranged in the inner cavity of the top plate, the surface of the action pipe is provided with adjusting mechanism.

[0007] Preferably, the mobile mechanism includes first motor fixed to the inner cavity of the top plate, the output shaft of the first motor is fixed with threaded rod, the surface of the threaded rod is engaged with engaging block, the both sides of the surface of the engaging block are fixed with connecting rod, and the action pipe is rotated on the surface of the connecting rod.

[0008] Preferably, the other end of the threaded rod is rotatably provided with bearing seat, and the other end of the bearing seat is fixed to the inner cavity of the top plate.

[0009] Preferably, the surface of the top plate is provided with groove, and the connecting rod is slid on the surface of the groove.

[0010] Preferably, the adjusting mechanism comprises a second motor fixed to the surface of the connecting rod, an output shaft of the second motor is fixed with a driving gear, the surface of the driving gear is engaged with a driven half-tooth, and the driven half-tooth is arranged on the surface of the action pipe.

[0011] Preferably, the surface of the action pipe is fixed with a limiting block on both sides, and the limiting blocks on both sides are attached to the driven half-tooth.

[0012] Compared with the prior art, the utility model has the beneficial effects as follows:

[0013] The utility model discloses a fire extinguishing system, which comprises a foam storage tank, a spraying pipeline, a connecting hose, an action pipe, a foam spraying head, a top plate, a moving mechanism, a first motor, a threaded rod, an engaging block, a connecting rod, a bearing seat, a groove body, an adjusting mechanism, a second motor, a driving gear and a driven half-tooth. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of a three-dimensional structure in the utility model;

[0015] Figure 2 It is a schematic diagram of a three-dimensional structure of another side view in the utility model;

[0016] Figure 3 It is a schematic diagram of a partial three-dimensional structure in the utility model;

[0017] Figure 4 It is a schematic diagram of a partial three-dimensional structure in the utility model.

[0018] In the drawing: 1, foam storage tank; 2, spraying pipeline; 3, connecting hose; 4, action pipe; 5, foam spraying head; 6, top plate; 7, moving mechanism; 71, first motor; 72, threaded rod; 73, engaging block; 74, connecting rod; 8, bearing seat; 9, groove body; 10, adjusting mechanism; 101, second motor; 102, driving gear; 103, driven half-tooth; 11, limiting block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-4The utility model provides a kind of spraying device of compressed air foam fire extinguishing system, including foam storage tank 1 and top plate 6 fixed to ceiling, the surface of foam storage tank 1 is communicated with spraying pipeline 2, the other end of spraying pipeline 2 is communicated with connecting hose 3, the surface of connecting hose 3 is rotatably communicated with action pipe 4, the surface of action pipe 4 is communicated with foam spraying head 5, several connecting hose 3, action pipe 4 and foam spraying head 5 are communicated with each other, further including:

[0021] Moving mechanism 7 is arranged in the inner cavity of top plate 6, and the surface of action pipe 4 is provided with adjusting mechanism 10.

[0022] Connecting hose 3 is stainless steel braided hose, the inner diameter is Φ50mm, the length is telescopic range 1.5-4m, and the pressure strength is greater than or equal to 2.5MPa.

[0023] The utility model discloses when starting fire extinguishing system, under the control of fire extinguishing system, moving mechanism 7 works, and then under the action of moving mechanism 7, action pipe 4 and foam spraying head 5 can be moved horizontally, so as to adjust the working area of action pipe 4 and foam spraying head 5, and under the action of adjusting mechanism 10, the angle of action pipe 4 and foam spraying head 5 can be changed, so as to make spraying more accurate and improve the practicability of fire extinguishing.

[0024] Moving mechanism 7 includes first motor 71 fixed in the inner cavity of top plate 6, the output shaft of first motor 71 is fixed with threaded rod 72, the surface of threaded rod 72 is engaged with engaging block 73, the both sides of the surface of engaging block 73 are fixed with connecting rod 74, and action pipe 4 rotates on the surface of connecting rod 74.In the embodiment, under the action of first motor 71, threaded rod 72 can be rotated by the arrangement of first motor 71, threaded rod 72, engaging block 73 and connecting rod 74, so that connecting rod 74 drives action pipe 4 to move under the engagement of engaging block 73 and threaded rod 72.

[0025] Top plate 6 is integrated with infrared thermal imaging sensor, and is signal-connected with controller, and triggers when detecting that temperature is greater than 150 DEG C.

[0026] The other end of threaded rod 72 is rotatably provided with bearing seat 8, and the other end of bearing seat 8 is fixed in the inner cavity of top plate 6.In the embodiment, the rotation of threaded rod 72 is limited by the arrangement of bearing seat 8, and the stability of threaded rod 72 during rotation is improved.

[0027] The surface of top plate 6 is provided with groove 9, and connecting rod 74 slides on the surface of groove 9.In the embodiment, the movement of connecting rod 74 is limited by the arrangement of groove 9, and the stability of connecting rod 74 during work is improved.

[0028] The adjusting mechanism 10 comprises a second motor 101 fixed to the surface of the connecting rod 74, the output shaft of the second motor 101 is fixed with a driving gear 102, the surface of the driving gear 102 is engaged with a driven half gear 103, the driven half gear 103 is arranged on the surface of the action pipe 4, in this embodiment, through the arrangement of the second motor 101, the driving gear 102 and the driven half gear 103, when the second motor 101 works, the driving gear 102 can rotate, and then under the engagement of the driven half gear 103 and the driving gear 102, the action pipe 4 rotates, so as to adjust the angle of the foam spraying head 5.

[0029] The surfaces of the action pipe 4 are fixed with limiting blocks 11 on both sides, and the two limiting blocks 11 are arranged on the driven half gear 103, in this embodiment, through the arrangement of the limiting block 11, the engagement of the driven half gear 103 and the driving gear 102 is limited, and the range of movement of the driven half gear 103 and the driving gear 102 is defined.

[0030] The first motor 71 and the second motor 101 meet the ATEX II 2G Ex db IIC T4 explosion-proof certification, and the temperature resistance level is F level (155℃).

[0031] Working principle: when a fire occurs, under the action of the smoke alarm, the infrared thermal imaging sensor and the fire extinguishing system controller, the foam storage tank 1, the moving mechanism 7 and the adjusting mechanism 10 work, under the action of the foam storage tank 1, the air foam passes through the spraying pipe 2, the connecting hose 3 and the action pipe 4 into the foam spraying head 5, and then under the action of the foam spraying head 5, the foam is sprayed out, so as to achieve the purpose of extinguishing the fire.

[0032] In addition, under the action of the first motor 71, the threaded rod 72 and the engagement block 73 can be engaged, and then under the action of the connecting rod 74, the action pipe 4 and the foam spraying head 5 can move horizontally, so that the foam spraying head 5 is close to the fire source, and the accuracy of the work of the foam spraying head 5 is improved.

[0033] Under the action of the second motor 101, the driving gear 102 and the driven half gear 103 are engaged, and then the angle of the action pipe 4 and the foam spraying head 5 is adjusted, so that the foam spraying head 5 is aligned with the fire source, and the accuracy of the foam spraying head 5 is further improved.

[0034] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0035] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A sprinkling device of a compressed air foam extinguishing system, comprising a foam storage tank (1) and a ceiling plate (6) fixed to the ceiling, characterized in that: The surface of the foam storage tank (1) is communicated with a spraying pipeline (2), one end of the spraying pipeline (2) is communicated with a connecting hose (3), the surface of the connecting hose (3) is rotatably communicated with an action pipe (4), the surface of the action pipe (4) is communicated with a foam spraying head (5), and the top plate (6) is arranged on the top of the foam storage tank (1). A moving mechanism (7) is arranged in the inner cavity of the top plate (6), and the surface of the action pipe (4) is provided with an adjusting mechanism (10).

2. A sprinkler device for a compressed air foam extinguishing system according to claim 1, characterized in that: The moving mechanism (7) comprises a first motor (71) fixed in the inner cavity of the top plate (6), a threaded rod (72) fixed to the output shaft of the first motor (71), an engaging block (73) engaged with the surface of the threaded rod (72), a connecting rod (74) fixed on both sides of the surface of the engaging block (73), and the action pipe (4) is rotatable on the surface of the connecting rod (74).

3. A sprinkler device for a compressed air foam extinguishing system according to claim 2, characterized in that: The other end of the threaded rod (72) is rotatably provided with a bearing seat (8), and the other end of the bearing seat (8) is fixed to the inner cavity of the top plate (6).

4. A sprinkler device for a compressed air foam extinguishing system according to claim 2, characterized in that: The surface of the top plate (6) is provided with a groove (9), and the connecting rod (74) slides on the surface of the groove (9).

5. A sprinkler device for a compressed air foam extinguishing system according to claim 2, characterized in that: The adjusting mechanism (10) comprises a second motor (101) fixed to the surface of the connecting rod (74), a driving gear (102) fixed to the output shaft of the second motor (101), a driven half tooth (103) engaged with the surface of the driving gear (102), and the driven half tooth (103) is arranged on the surface of the action pipe (4).

6. A sprinkler device for a compressed air foam extinguishing system according to claim 5, characterized in that: The surface of the action pipe (4) is fixed with a limiting block (11) on both sides, and the limiting blocks (11) on both sides are arranged on the driven half tooth (103).

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