Drainage system for peatbog unwatering

FIELD: forestry, particularly for fighting fires in high-capacity and medium-capacity peat beds.

SUBSTANCE: drainage system includes a number of water drainage channels with control-and-shutoff valves, manifold with drain lines connected thereto and intercepting channel located above drained peat bed and communicated with water inlet. Intercepting channel is provided with control-and-shutoff means to accumulate surface water flow and to create water reserve. Intercepting channel is connected with manifold head part by means of pipeline having valve gate. Manifold is provided with movable partition. Intercepting channel has antifiltering shield.

EFFECT: possibility of fire localization without operation stoppage and without underflooding surrounding territories and, as result, reduced economic losses.

2 dwg

 

The present invention relates to the field of forestry and may find application in the fight against forest fires mainly in low-and medium-peat.

A known design of irrigation system designed for the containment of the fire, including sprinkler plumes located on ontakedamage strip and provided with water supply pipelines (U.S. Pat. Of the Russian Federation No. 2087167, MCI And 62 With 2/00, BI No. 23,1997,).

The disadvantage of this system is the low efficiency when fighting fires on peatlands. As a moistening of the peatland area irrigation sprinkler train is slow, and after a few hours the plume is surface water runoff from irrigated land, while the burning of the peat bog is at a depth of several meters.

The closest analogue of the proposed device is a drainage system for draining of peatlands, including a system of drainage channels, equipped with an adjusting-locking devices, and drains associated with the collector, as well as Nagorno canal that runs above the slope drained peatland and for the collection and discharge to a water body surface water runoff from areas above the drained peatland (Handbook “Drainage”, Moscow, Association), 2001, str).

Under taccom this drainage system is when fire for its localization and extinguishing produce the complete flooding of drained peatland by overlapping adjustment-locking devices and raising the groundwater level to the surface of the drained peatland. The extraction of peat is terminated, and the flooding of surrounding lands.

To eliminate the mentioned disadvantages allows the proposed drainage system for the drainage of peatlands, including a network of drainage channels with regulating-valves, manifold connected to the drains and Nagorno canal that runs above the slope, drained peatland, communicated with the receiving water, characterized in that upper channel equipped with additional adjustment-locking device and through a pipe with valve communicated with the main part of the collector, the latter being provided with a movable bridge. In addition Nagorno channel is equipped with an impervious screen.

The essence of the invention lies in the fact that the equipment of Nagorno-channel additional adjustment-locking device and connect it through the pipeline with the valve to the head of the reservoir, provided with a movable jumper allows local flooding in the combustion zone of peat, without flooding the rest of drained peatland and the environmental area. When this supply of Nagorno-channel anti-filtration screen increases the reliability of fire protection at the expense of the warranty save water.

The invention is illustrated by drawings, where figure 1 shows a General view of the drainage system for draining the peatland, figure 2 is a section along a-A.

The area of drained peatland 1 padded manifold 2 which is connected to the closed drains 3. Higher collector 2 the slope is made Nagorno channel 4 reported through line 5 and valve 6 with the main part of the collector 2, the end part of which is provided with an adjusting-locking device 7 and indicated by the channel of the second order 8 with water intake 9. The collector 2 is movable retainer 10, and in Nagorno-channel 4 can be made of an impervious screen 12 and set the adjusting shut-off device 11. Nagorno channel 4 through the channel 13 communicates with the receiving water 9.

The operation of the drainage system on peatlands is performed in the following sequence: spring in Nagorno-channel 4 cover additional adjustment-locking device 11, accumulate runoff and create a supply of water. Membrane screen 12 reduces the potential loss of water by filtration and allows you to save the accumulated water to the fire risk. To reduced the I water losses from Nagorno-channel for evaporation on the surface, you can apply a special surface-active substances, reducing evaporation. When the fire on drained peatland 1 set mobile jumper 10 in the manifold 2 below the fire on the ramp and open the shutoff device 6. The water supplied from the pipe 4 pipe 5 and the collector 2, fills drains 3 above mobile jumper 10. This drains 3 work as the subsoil humidifiers. When entering drains water is the saturation of the peat due to capillary rise into the upper layer and the gravitational draining of water to impermeable soil layer. Upon reaching the front of the fire plump strips of burning peat at full capacity wet plot stops and comes localization and attenuation of the fire. After the cease-fire shut-off device 6 is closed, the jumper 10 is moved to the upper part of the collector 2, above the first drain 3, adjusting shut-off device 7 on the collector 2 open, dumping the remaining water through a pipeline of the second order 8 in the receiving water 9. When you fire at site 1 the process of localization and extinguishing repeat.

With the shortage of water in mountainous channel 4 replenish its reserves due to runoff of rainfall, and by pumping water from the water intake 9 using a mobile pumping station on channel 13.

Thus, the proposed drain the system for drainage of peatland allows to localize foci of fire in peatlands without interrupting its operation and without flooding the surrounding areas and the associated economic losses.

Drainage system for draining the peatland, including a network of drainage channels with regulating-valves, manifold connected to the drains and Nagorno canal that runs above the slope, drained peatland, communicated with the receiving water, characterized in that upper channel is equipped with an adjusting-locking device for accumulation of surface runoff and create water through a pipeline with a valve communicated with the main part of the collector, the latter being provided with a movable bridge, and Nagorno channel is equipped with an impervious screen.



 

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