CN220080170U - Anti-freezing device for roof test hydrant - Google Patents

Abstract

The utility model belongs to the field of indoor fire hydrant antifreezing devices, and particularly relates to a roof test fire hydrant antifreezing device, wherein a plurality of groups of fire hydrant vertical pipes are communicated with a fire top ring main pipe, an outlet of the fire top ring main pipe is communicated with an inlet of a test control valve, an outlet of the test control valve is communicated with a test main pipe, the test main pipe extends to the outer side of a roof and then is communicated with the test fire hydrant, an outlet of the test control valve is also communicated with a drain pipe, and a drain valve is communicated with the drain pipe.

Description

Anti-freezing device for roof test hydrant

Technical Field

The utility model belongs to the field of indoor hydrant antifreezing devices, and particularly relates to an antifreezing device for a roof test hydrant.

Background

The building with the indoor fire hydrant is provided with the test fire hydrant at the exit of the roof and the top layer. The test fire hydrant is arranged on the roof of a building and is used for detecting whether the flow and the water pressure of an indoor fire hydrant system meet the use requirements or not and detecting whether the indoor fire hydrant system can be automatically started after water is discharged from a water gun or not. Whether the working state of the fire hydrant is normal or not is directly reflected whether the whole indoor fire hydrant system is normal or not. In order to ensure that the indoor fire hydrant system is in a normal quasi-working state at any time, all parts of the system need to be checked and detected regularly, so that the test fire hydrant can be used normally at any time. However, in the actual engineering in severe cold regions, there are two problems:

1. the test hydrant can be arranged at the outlet of the top layer in winter icing areas such as severe cold, cold and the like. However, in actual engineering, no heating measures are found at the outlet of the top layer, and the test hydrant still has freezing risk under the extremely low-temperature condition.

2. Once the roof test hydrant is frozen, the inspection and detection work of the hydrant system cannot be completed. The working state of the test fire hydrant is a key index for directly reflecting whether the whole indoor fire hydrant system operates normally or not, and if the test fire hydrant is frozen, on one hand, great inconvenience is brought to inspection and detection work, and on the other hand, a plurality of fire inspection workers can give up the detection data, so that a great potential safety hazard is brought to safe operation of the fire hydrant system.

To avoid this, there are theoretically the following solutions: and the anti-freezing heat preservation and the electric heat tracing heat preservation are arranged at the positions of the fire hydrant pipeline and the valve in the roof test. Although the method solves the problem of freezing of the test hydrant in theory, the method is difficult to popularize practically, only the pipeline and the valve are used for freezing prevention and heat preservation in extremely low-temperature weather in severe cold and cold areas, only the freezing time of water filling in the pipeline is delayed, and the freezing problem still occurs in the test hydrant in extremely low-temperature weather for a long time. On the one hand, the electric tracing heat is operated for a long time in the whole winter, so that a large amount of electric energy is consumed, and energy is not saved; on the other hand, the electric tracing has a certain service life, and is not safe and reliable after long-term use. Therefore, the theoretical method does not radically and thoroughly solve the problem of freezing of the roof test hydrant in the water filling state all the time in the severe cold region.

Disclosure of Invention

In order to solve the problem that the roof test fire hydrant in severe cold and cold areas has a common freezing risk under the extremely low temperature condition, the anti-freezing device for the roof test fire hydrant is provided. According to the utility model, the change of the water filling state in the pipeline at the test hydrant is realized through the control valve, after the daily inspection and detection work is finished, the water filling wet state of the test hydrant pipeline is converted into the non-water dry state, the freezing risk is avoided when the water in the pipeline is not filled, and the freezing problem of the roof test hydrant in severe cold and cold areas is thoroughly solved.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a roof test fire hydrant freeze proof device, includes multiunit fire hydrant standpipe, multiunit fire hydrant standpipe all communicates with fire control top ring main pipe, and the export of fire control top ring main pipe is linked together with the import of test control valve, and the export of test control valve is linked together with test person in charge, and the test person in charge is linked together with test fire hydrant after extending to the roof outside, and the export of test control valve still communicates there is the drain pipe, communicates on the drain pipe has the wash valve.

Further, an automatic exhaust valve is communicated with the test main pipe.

Further, a pressure gauge is arranged at the front end of the test hydrant.

Further, fire control valves are arranged on the plurality of groups of fire control vertical pipes.

Furthermore, the outer sides of the water drain pipe and the water drain valve are provided with an antifreezing device.

Compared with the prior art, the utility model has the following beneficial effects: the utility model opens the test control valve to realize normal water filling in the pipeline. After the daily inspection and detection work is finished, the test control valve and the fire control valve are closed, the water drain valve is opened, the test hydrant pipeline is converted into a non-water dry state from a water-filled wet state, and the freezing risk can not occur even if water is not filled in the pipeline, so that the freezing risk of the test hydrant in the roof in severe cold and cold areas is thoroughly solved, the test hydrant is ensured to be always normally used, and the periodic inspection and detection of a hydrant system are met.

Drawings

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the present utility model.

In the figure, 1 is a hydrant standpipe, 2 is a fire control top ring main pipe, 3 is a test control valve, 4 is a test main pipe, 5 is a test hydrant, 6 is a water drain pipe, 7 is a water drain valve, 8 is an automatic exhaust valve, 9 is a pressure gauge, and 10 is a fire control valve.

Description of the embodiments

As shown in figure 1, the anti-freezing device for the roof test fire hydrant comprises a plurality of groups of fire hydrant risers 1 arranged in a building, wherein each group of fire hydrant risers 1 is provided with a fire control valve 10, the fire hydrant risers 1 are used for connecting fire hydrants of all layers, the tops of the fire hydrant risers 1 extend into a public part of the lower layer of the roof, then in the area, the fire hydrant risers of the plurality of groups are communicated through a fire top ring trunk pipe 2, the outlet of the fire top ring trunk pipe 2 is communicated with the inlet of a test control valve 3, the outlet of the test control valve 3 is communicated with a test main pipe 4, the test main pipe 4 extends to the outer side of the roof and then is communicated with a test fire hydrant 5, the outlet of the test control valve 3 is also communicated with a drain pipe 6, and the drain pipe 6 is communicated with a drain valve 7.

The working principle of the utility model is as follows: during daily fire hydrant inspection and detection, the water drain valve 7 is closed firstly, then the test control valve 3 is opened, and the test hydrant pipeline is filled with water normally, so that the daily inspection and detection work of the test hydrant can be completed. After the daily inspection and detection work is finished, the test control valve 3 is closed firstly, then the water drain valve 7 is opened, water in the roof test main pipe 4 can be drained to a water receiving container or a public pipe well drain floor drain, the test main pipe 4 is converted from a water filling wet state to a water non-filling dry state, freezing risks cannot occur when water is not filled in a pipeline, and the problem of freezing of roof test fire hydrant in severe cold and cold areas is thoroughly solved.

In addition, the drain pipe 6 and the drain valve 7 are arranged in the indoor public space of the lower layer of the roof, and if no heating measures are taken in the public space, the pipeline and the valve can be subjected to antifreezing heat preservation by adopting heat preservation materials such as rubber and plastic.

The device realizes the change of the water filling state in the pipeline at the test hydrant through the control valve, and after the daily inspection and detection work is finished, the test hydrant pipeline is converted from a water filling wet state to a non-water dry state, the freezing risk can not occur when the water in the pipeline is not filled, and the freezing problem of the roof test hydrant in severe cold and cold areas is thoroughly solved. Compared with the measure of setting electric tracing heat preservation at the test hydrant, the device does not need to consume electric energy, can realize zero energy consumption, and is safer and more reliable compared with the traditional method.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (5)

1. The utility model provides a roof test fire hydrant prevents frostbite device, includes multiunit fire hydrant standpipe (1), its characterized in that: the fire hydrant standpipe of multiunit (1) all communicates with fire control top ring main pipe (2), and the export of fire control top ring main pipe (2) is linked together with the import of experimental control valve (3), and the export of experimental control valve (3) is linked together with experimental main pipe (4), and experimental main pipe (4) extend to roof outside after with experimental fire hydrant (5) intercommunication, the export of experimental control valve (3) still communicates has drain pipe (6), and the intercommunication has drain valve (7) on drain pipe (6).

2. A roof test fire hydrant anti-freeze apparatus according to claim 1, wherein: an automatic exhaust valve (8) is communicated with the test main pipe (4).

3. A roof test fire hydrant antifreeze apparatus according to claim 2, wherein: the front end of the test fire hydrant (5) is provided with a pressure gauge (9).

4. A roof test fire hydrant anti-freeze apparatus according to claim 1, wherein: fire control valves (10) are arranged on the fire hydrant risers (1) of the plurality of groups.

5. A roof test fire hydrant antifreeze apparatus according to claim 4, wherein: the water drain pipe (6) and the water drain valve (7) are arranged in an indoor public space of the lower layer of the roof.