CN202438026U

CN202438026U - Telescopic powder feeding pipe device for composite jet

Info

Publication number: CN202438026U
Application number: CN201220057036XU
Authority: CN
Inventors: 倪军; 李光荣; 李林凯
Original assignee: MINGGUANG HAOMIAO FIRE-FIGHTING TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: MINGGUANG HAOMIAO SECURITY TECHNOLOGY CO., LTD.
Priority date: 2012-02-21
Filing date: 2012-02-21
Publication date: 2012-09-19
Anticipated expiration: 2022-02-21

Abstract

The utility model discloses a telescopic powder feeding pipe device for composite jet. The powder feeding pipe device comprises a fixed arm and a telescopic arm, the telescopic arm arranged in the fixed arm can extend or retract along axially, is driven by a telescopic hydro-cylinder arranged on the back of the fixed arm, a powder feeding pipe which comprises a fixed pipe and a movable pipe is arranged on the device, the movable pipe is capable of extending and retracting in a sliding manner in the fixed pipe, the fixed pipe is fixedly connected with the fixed arm, and the movable pipe is fixedly connected with the telescopic arm. By the aid of the telescopic powder feeding pipe device for composite jet, mixture of powder and gas can be smoothly fed to a required height to extinguish a fire with water or a mixture of water and foam in a jetting manner, so that not only a traditional fire extinguishing manner is changed, but also fire extinguishing efficiency is greatly improved, fire extinguishing time is shortened, fire extinguishing cost is lowered, and the fire extinguishing efficiency is proved to be several times to more than ten times over that in other fire extinguishing manner according to experiment comparisons .

Description

Compound jet is with telescopic conveying tube cell device

Technical field:

The utility model relates to a kind of compound jet with telescopic conveying tube cell device.

Background technology:

To fire attacks such as skyscraper, large oil tanks, have only traditional elevating fire truck to put out a fire at present, promptly can only injection water or foam solution.

The fire-fighting efficiency of experiment proof powder-gas mixture is greater than foam solution, and the fire-fighting efficiency of foam solution is greater than water.Though the fire-fighting efficiency of powder-gas mixture is high, the time is short, pollution-free, cost is low; To carry out ejecting extinguishing be technological difficulties but will from fixture, successfully be delivered to desired height to powder-gas mixture, how to guarantee that promptly powder-gas mixture arrives the problem that desired height carries out ejecting extinguishing smoothly through transport.Because ultra-fine dry powder mean particle dia little (particle diameter is not more than 15 μ m), himself has certain tack again, and carrier pipe adopts the existing extensible conveying pipe device of lifting on the high arm to accomplish.

The existing extensible conveying pipe device of lifting on the high arm all adopts lower support and upper support to add the sealing mode, the screw-type connecting mode; At first; It is no problem when transporting water or foam solution to adopt lower support and upper support to add the sealing mode; Because when water and foam solution flow in pipe fast; Get between motion pipe and the stationary pipes through the lower support space, play certain lubrication, can not have the problem that increases its resistance because of pipeline transporting water or foam solution when flexible; And this structure is to realize to the conveying of powder-gas mixture; Because powder has certain tack; When in pipe, flowing fast; Powder gets between motion pipe and the stationary pipes through the space of lower support, will adhere to certain dust granules at move pipe outer arm and stationary pipes inner arm like this, thereby increases the resistance of motion pipe and stationary pipes; Will occur to be synchronized with the movement between extensible conveying pipe and the carrier (telescopic arm support) after a certain amount of when the dust that an adheres to material reaches, will cause carrier (telescopic arm support) cisco unity malfunction at last even be damaged.Secondly, the screw-type connecting mode is for the maintenance in its later stage and change dust blowing and sealing exists very big defective, because thread connection not only will adopt specific purpose tool when dismounting, but also needs certain space.

Summary of the invention:

For overcoming the defective of prior art; The purpose of the utility model is to provide a kind of compound jet with telescopic conveying tube cell device; Make powder-gas mixture compound jet with telescopic conveying tube cell device in high-speed cruising; And utilize compound jet powder-gas mixture to be delivered to desired height and put out a fire, successfully solved this technical barrier with telescopic conveying tube cell device.

The utility model technical solution problem adopts following technical scheme:

Compound jet is with telescopic conveying tube cell device; Comprise fixed arm, being located at can be along the telescopic arm of its axial stretching in the said fixed arm; Said telescopic arm is driven by said fixing post-brachial telescopic oil cylinder, and the conveying tube cell is set, said conveying tube cell comprise stationary pipes and can be in said stationary pipes the motion pipe of sliding extension; Said stationary pipes and said fixed arm connect firmly, and said motion pipe and said telescopic arm connect firmly;

The upper end of said stationary pipes is provided with flange, and the support of being located between stationary pipes inwall and the motion pipe outer wall of going up connects firmly on said flange; Following support connects firmly on the outer wall of said motion pipe.Be provided with dust blowing part and the seal that connects firmly with said motion pipe between the rear end outer wall of the inwall of said stationary pipes and said motion pipe.

Compared with present technology, the beneficial effect of the utility model is embodied in:

1, can powder-gas mixture successfully be delivered to desired height and water or water with the foam mixing liquid ejecting extinguishing; Not only changed traditional fire-fighting mode; And improved fire-fighting efficiency greatly, and shortened attack time, reduced the fire extinguishing cost; Through the experiment contrast, its fire-fighting efficiency is several times to tens times of other fire-fighting mode.

2, effectively the fire extinguishing height can based on needs from more than 20 meters rise to more than 100 meter all can, the safety of the skyscraper that adequately protects, large oil tank.

3, the utility model has directly solved in the prior art deficiency of sealing means and maintainability between the motion pipe and stationary pipes; At first; Compound jet through lower seal, when dust is flowed fast, can not get into the space between motion pipe and the stationary pipes with telescopic conveying tube cell device in pipe; Thereby avoided the adhere to chance of dust, reduced the resistance of relative motion with motion pipe outer arm.Secondly; Telescopic conveying tube cell is through the flange connecting mode; Maintenance, replacing dust blowing part and seal only need adopt the Bolt dismantling of general spanner with connecting flange, and connecting flange is taken away and can keeped in repair and change dust blowing part and sealing, do not receive the restriction in instrument and space.

Description of drawings:

Fig. 1 is the structural representation of the utility model telescopic arm support; Fig. 2 is the structural representation of the utility model compound jet with telescopic conveying tube cell.

Label among the figure: 1 motion pipe, 2 flanges support on 3, and 4 stationary pipes support for 5 times, 6 seals, 7 mozzles, 8 telescopic arms, 9 fixed arms, 10 carry tube cells, 11 telescopic oil cylinders, 12 dust blowing parts, 13 sewage draining exits.

Below pass through the specific embodiment, and in conjunction with the accompanying drawings the utility model is described further.

The specific embodiment:

Embodiment: combine Fig. 1, the telescopic arm support of present embodiment comprises fixed arm 9, being located at can be along the flexible telescopic arm 8 of fixed arm axis direction in the fixed arm; This telescopic arm 8 is driven by the telescopic oil cylinder 11 at fixed arm 9 rear portions; Fig. 1, shown in 2, be provided with carry tube cell 10, said conveying tube cell comprise stationary pipes 4 and can be in stationary pipes the motion pipe 1 of sliding extension; Said stationary pipes 4 connects firmly with fixed arm 9, and motion pipe 1 connects firmly with telescopic arm 8.

The upper end of stationary pipes 4 is provided with flange 2, and the support of being located between stationary pipes 4 inwalls and motion pipe 1 outer wall 3 of going up connects firmly on flange; Supporting 5 down connects firmly on the outer wall of motion pipe 1.Be provided with between the rear end outer wall of the inwall of said stationary pipes 4 and motion pipe 1 and dust blowing part 12 and seal 6 that the pipe 1 that moves connects firmly.

In specifically being provided with, the front end outer wall of said stationary pipes is provided with sewage draining exit 13, realizes the eliminating of medium between motion pipe 1 and the stationary pipes 4.Shown in Figure 2, the porch, rear end of stationary pipes 4 is provided with medium mozzle 7, and its effect is firing-fighting medium to be imported in the motion pipe 1 eject, and its another effect is after fire extinguishing finishes, and the air that cleans medium is played the refluence effect.

Claims

1. compound jet is with telescopic conveying tube cell device; Comprise fixed arm (9), being located at can be along the telescopic arm (8) of its axial stretching in the said fixed arm, said telescopic arm (8) is driven by the telescopic oil cylinder (11) at said fixed arm (9) rear portion, it is characterized in that; Be provided with and carry tube cell (10); Said conveying tube cell comprise stationary pipes (4) and can be in said stationary pipes the motion pipe (1) of sliding extension, said stationary pipes (4) connects firmly with said fixed arm (9), said motion pipe and said telescopic arm (8) connect firmly;

The upper end of said stationary pipes (4) is provided with flange (2), and the support of being located between stationary pipes (4) inwall and motion pipe (1) outer wall (3) of going up connects firmly on said flange; Following support (5) connects firmly on the outer wall of said motion pipe (1).

2. compound jet according to claim 1 is characterized in that with telescopic conveying tube cell device, is provided with the dust blowing part (12) and the seal (6) that connect firmly with said motion pipe between the rear end outer wall of the inwall of said stationary pipes (4) and said motion pipe (1).