Remaining and anti-freezing structure of fire-fighting spraying pipeline

Abstract

The utility model relates to the technical field of fire-fighting spraying, in particular to a residual-discharging anti-freezing structure of a fire-fighting spraying pipeline. Comprising a plurality of sections of fire-fighting ring pipes surrounding the oil tank, one end of each fire-fighting ring pipe is connected with a fire-fighting vertical pipe, a plurality of fire-extinguishing nozzles are arranged at the top of each fire-fighting ring pipe at intervals, and a screwed joint is arranged at the bottom of one end, away from the fire-fighting vertical pipe, of each fire-fighting ring pipe and connected with a residue discharging nozzle. According to the utility model, water leakage is avoided during spraying of the spraying system, so that the pressure of the pipeline is reduced, the designed pressure of the pipeline conforms to the actual pressure, the spraying strength is ensured, the spraying fire extinguishing effect is prevented from being influenced, and the problems that water is easily accumulated in the pipeline after water is filled for use and the pipeline is frozen to crack in cold regions are solved; and the fire-fighting water can be fully utilized and can be completely sprayed on a protected object.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire -fighting spray technical field, specifically is a fire -fighting spray pipeline residual prevention freezing structure. BACKGROUND

[0002] Fire -fighting spray is applied to the fire prevention and cooling of storage tank and spherical tank, and in the form of spray curtain, the protected surface of tank wall is sprayed with water to cool down. Since the installation of the spray ring pipe cannot guarantee 100% levelness, the water in the spray ring pipe cannot be completely discharged by only the drain hole at the bottom of the fire riser, and after the fire -fighting spray ring pipe is filled with water, water is easy to accumulate in the pipe, which can cause pipe freeze cracking, corrosion and other problems in cold regions. In the past, a drain hole with a diameter of about 5mm is drilled at the bottom of each ring pipe, and the remaining water is discharged through the drain hole. Although this method can empty the residual water, the water will directly flow to the ground, wasting water resources, and when the spray system sprays, the open drain hole of the pipe cannot calculate the pressure loss, which can also cause the system pressure loss to be uncontrollable, so the water pressure cannot reach the rated working pressure of the nozzle, which seriously affects the effect of fire extinguishing. SUMMARY

[0003] The utility model aims at solving the above -mentioned problem, to provide a kind of residual prevention freezing structure of fire -fighting spray pipeline that guarantees water pressure reaches rated working pressure.

[0004] The utility model solves the problems by adopting the technical scheme of:

[0005] A kind of residual prevention freezing structure of fire -fighting spray pipeline, including the fire -fighting ring pipe of being set around oil tank several sections, the one end of fire -fighting ring pipe is connected with fire riser, and the top of fire -fighting ring pipe is intervally provided with several fire -extinguishing nozzles, and the bottom of the one end of fire -fighting ring pipe away from fire riser is provided with threaded joint, and threaded joint is connected with residual nozzle.

[0006] The utility model adopting the above technical scheme compared with prior art, its outstanding features are:

[0007] Ensure that uncontrolled water leakage does not occur when the spray system sprays, thereby reducing the pressure of the pipe, the water leakage nozzle can also be used as a fire -extinguishing nozzle, which can reduce the number of corresponding fire -extinguishing nozzles during design, not only can the pipe design pressure and actual pressure be consistent, to ensure the spray intensity, avoid affecting the effect of fire extinguishing, but also save water resources, and avoid water accumulation in the pipe after filling with water, which can cause pipe freeze cracking in cold regions.

[0008] As preferred, the further technical scheme of the utility model is:

[0009] Further, the water outlet of the residual nozzle faces the protected surface of the oil tank.

[0010] Further, the residual discharge nozzle adopts a ZSTWB nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a front view structural schematic diagram of an embodiment of the present application.

[0012] Figure 2 It is a plane structural schematic diagram of an embodiment of the present application after the oil tank is opened.

[0013] Figure 3 It is a structural schematic diagram of a traditional fire-fighting ring pipe with a drain valve.

[0014] Figure 4 It is a positional relationship structural schematic diagram of an embodiment of the present application of the residual discharge nozzle and the fire extinguishing nozzle.

[0015] In the figure, the marks are: fire-fighting ring pipe 1, fire-fighting vertical pipe 2, oil tank 3, fire extinguishing nozzle 4, residual discharge nozzle 5. DETAILED DESCRIPTION

[0016] The present application will be further described in connection with the embodiments, and the purpose is only to better understand the content of the present application, therefore, the examples do not limit the protection scope of the present application.

[0017] A fire-fighting spraying pipe residual discharge anti-freezing structure, comprising a plurality of segments of fire-fighting ring pipes 1 arranged around an oil tank 3, one end of the fire-fighting ring pipe 1 being connected with a fire-fighting vertical pipe 2, a plurality of fire extinguishing nozzles 4 being arranged at the top of the fire-fighting ring pipe 1 at intervals, the fire extinguishing nozzles 4 being inclined upward so that the sprayed water flows face the protected surface of the oil tank 3, a threaded joint being arranged at the bottom of the end of the fire-fighting ring pipe 1 far from the fire-fighting vertical pipe 2, and a residual discharge nozzle 5 being connected to the threaded joint.

[0018] Further, the water spraying opening of the residual discharge nozzle 5 faces the protected surface of the oil tank 3, and the threaded joint and the residual discharge nozzle 5 are arranged obliquely so that the sprayed water flows also face the protected surface of the oil tank 3, and are sprayed to the same height position as the fire extinguishing nozzles 4, which can make full use of the fire-fighting water and spray all the water to the protected object, thereby saving water resources and being more beautiful.

[0019] Further, the residual discharge nozzle 5 adopts a ZSTWB nozzle.

[0020] The present application can ensure that no water is discharged when the spraying system sprays, thereby reducing the pressure of the pipe, can make the pipe design pressure consistent with the actual pressure, ensure the spraying intensity, avoid affecting the effect of fire-fighting spraying, avoid the pipe content being easy to accumulate water after being filled with water, cause pipe cracking in cold areas and other problems, and make full use of the fire-fighting water and spray all the water to the protected object.

[0021] The above merely describes the preferred and feasible embodiments of the present application, and is not intended to limit the scope of the present application, and any equivalent changes made according to the content of the present application and the drawings are included in the scope of the present application.

Claims

1. A fire-fighting spray pipeline residual anti-freezing structure, comprising a plurality of fire-fighting ring pipes arranged around an oil tank, one end of each fire-fighting ring pipe being connected with a fire-fighting vertical pipe, and a plurality of fire-fighting nozzles being arranged at intervals on the top of each fire-fighting ring pipe, characterized in that: The bottom of the fire-fighting ring pipe away from the one end of the fire-fighting vertical pipe is provided with a threaded joint, and the threaded joint is connected with a residual discharge nozzle.

2. The fire-fighting sprinkler pipe row anti-freezing structure according to claim 1, characterized in that: The water outlet of the residual discharge nozzle faces the protected surface of the oil tank.

3. The fire-fighting sprinkler pipe row anti-freezing structure according to claim 1, characterized in that: The residual discharge nozzle adopts a ZSTWB nozzle.

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