CN116378185A - Airport slope rainwater recycling method - Google Patents

Abstract

The invention discloses a method for reuse of rainwater on an airport slope, which comprises the following steps: (1) Working condition at the initial stage of rainfall: rainwater is collected by the airport drainage ditch and then converged to the initial rainwater purification mechanism, and then enters the storage mechanism of the water storage mechanism through a drainpipe; (2) Mid-term rainfall conditions: Rainwater that exceeds the flow capacity of the initial rainwater purification mechanism enters the energy dissipation and impurity interception area of the water storage mechanism through the slope drop ditch set on the airport slope, and then enters the water storage (3) Post-rainfall working conditions: Rainwater that exceeds the storage capacity of the water storage area overflows to the overflow outlet area of the water storage agency, and then enters the off-site drainage ditch. The present invention provides a reference operation method for rainwater treatment and disposal in different working conditions of the airport in the early, middle, late and non-rainfall periods, so that the rainwater in the rainfall process can be basically purified, and the rainwater is collected and stored as a reuse water source, saving water resources .

Description

A method for reuse of rainwater on airport slope

technical field

The invention relates to the technical field of airport rainwater recycling and utilization, in particular to a method for reuse of airport slope rainwater.

Background technique

The airport covers a large area. During the operation, there are gravel, garbage, dust and other impurities in the airport runway, taxiway and other areas. When it rains, the rainwater washes away the runway, taxiway and other areas and carries these impurities, which are collected by the airport drainage ditch. If it is directly discharged to the off-site drainage ditch, it is easy to cause pollution and blockage to the off-site drainage ditch. In addition, with the increase of rainfall time, the amount of rainwater gradually increases, and it is necessary to rationally deal with the rainwater in the early, middle and late stages of rainfall.

Contents of the invention

The main purpose of the present invention is to provide a method for recycling rainwater on airport slopes.

In order to achieve the above object, the present invention provides a method for reuse of rainwater on an airport slope, in which an initial rainwater purification mechanism and a water storage mechanism are set in the airport slope area between the airport drainage ditch and the off-site drainage ditch, including the following steps:

(1) Initial working condition of rainfall:

The rainwater is collected by the airport drainage ditch and then flows to the initial rainwater purification mechanism. In the rainwater purification mechanism, it passes through the still water area, the large particle filter material layer, the small particle filter material layer and the load-bearing plate with permeable holes, and then enters the water storage area. The rainwater in the water area enters the water storage area of the water storage mechanism through the drainage pipe;

(2) Mid-term rainfall conditions:

The rainwater that exceeds the flow capacity of the initial rainwater purification mechanism enters the energy dissipation and impurity interception area of the water storage mechanism through the slope drop ditch set on the airport slope, and then enters the water storage area of the water storage mechanism;

(3) Working conditions in the late stage of rainfall:

The rainwater that exceeds the storage capacity of the water storage area of the water storage mechanism overflows the overflow partition wall to the overflow water outlet area of the water storage mechanism, and then enters the off-site drainage ditch.

Further, setting up the rainwater reuse mechanism also includes the following steps:

Irrigation without rainfall:

The water distribution pump is started, and the rainwater in the water storage area passes through the water distribution pump, water distribution main pipe, water distribution branch pipe, water spray standpipe to the sprinkler head in sequence, and is sprayed to the slope green belt through the sprinkler head.

Further, the rainwater reuse mechanism includes a water distribution pump, a water distribution main pipe, a water distribution branch pipe, a water spray standpipe and a sprinkler head, the water inlet of the water distribution pump is connected to the water storage mechanism, and the water outlet is connected to the water distribution main pipe. One end of the water distribution main pipe communicates with the water distribution branch pipe, one end of the water spray riser communicates with the water distribution branch pipe, and the other end communicates with the sprinkler head.

Further, the initial rainwater purification mechanism includes a rainwater pool, and the rainwater pool is provided with a central gabled slope and two clean water tanks respectively located on both sides of the central gabled slope, and the two slopes of the central gabled slope are respectively Extending to the two clean water tanks, the water clean tanks are provided with a still water area, a large particle filter material layer, a small particle filter material layer, a load-bearing plate and a water storage area in sequence from top to bottom, and the load-bearing plate There are permeable holes.

Further, the large particle filter material layer adopts graded gravel with a particle diameter of 5-10 cm, and the small particle filter material layer adopts graded crushed stone with a particle diameter of 2-5 cm.

Further, the water storage mechanism includes a water storage tank, and the energy dissipation and impurity interception area, water storage area, water suction pit and overflow water outlet area are arranged in the water storage pool, and the energy dissipation and impurity interception area is located in the storage tank. The upper part of the water area communicates with the water storage area through the vertical water inlet hole and the horizontal water inlet hole arranged on the wall of the energy dissipation and impurity interception area. The water storage area is connected, and the overflow water outlet area is located on the side of the water storage area close to the off-site drainage ditch, and an overflow partition wall is set between the water storage area and the water storage area.

Further, the energy dissipation and impurity interception area is filled with graded gravel with a particle size of 20-30 cm.

Further, the overflow outlet area communicates with the off-site drainage ditch, and an anti-drilling water net is arranged between them.

Further, the initial rainwater purification mechanism communicates with the water storage mechanism through a drainage pipe and a side slope drop ditch, and a drop step is set in the side slope drop ditch.

Further, the initial rainwater purification mechanism is arranged inside the slope retaining wall at the beginning of the airport slope, and the water storage mechanism is arranged in a gentle area at the bottom of the airport slope.

The beneficial effects of the present invention are reflected in:

The present invention provides a reference operation method for rainwater treatment and disposal in different working conditions of the airport in the early, middle, late and non-rainfall periods. The initial rainwater purification mechanism is purified, and then enters the water storage mechanism for storage. The rainwater that exceeds the flow capacity of the initial rainwater purification mechanism is purified through the energy dissipation and impurity interception area, and the rainwater that exceeds the storage capacity of the water storage mechanism is discharged outside. Drainage ditch, the design of the present invention can rationally handle the rainwater in the early, middle and late stages of rainfall as the rainfall time and rainfall gradually increase, so that the rainwater in the rainfall process can basically be purified, and the rainwater is collected and stored as a reuse water source. Save water.

Description of drawings

Fig. 1 is the structural representation of the used mechanism of airport slope rainwater reuse method of an embodiment of the present invention;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is a schematic structural view of an initial rainwater purification mechanism in an embodiment of the present invention;

Fig. 4 is a cross-sectional view of an initial rainwater purification mechanism in an embodiment of the present invention;

Fig. 5 is a structural schematic diagram of a water storage mechanism in an embodiment of the present invention;

Fig. 6 is a sectional view of a water storage mechanism in an embodiment of the present invention;

Fig. 7 is a structural schematic diagram of a rainwater reuse mechanism in an embodiment of the present invention;

Fig. 8 is a structural schematic diagram of a bearing plate in an embodiment of the present invention.

Description of reference signs: 1-airport drainage ditch; 2-initial rainwater purification mechanism; 20-rainwater pool; 21-central herringbone slope; 22-still water area; 23-large particle filter layer; 24-small particle filter layer ;25-bearing plate; 26-permeable hole; 27-water storage area; 3-slope retaining wall; 4-slope green belt; 5-slope bottom gentle area; Sloping ditch; 71-falling steps; 8-drainage pipe; 9-water storage mechanism; 90-reservoir; 91-energy dissipation and impurity interception area; 92-vertical water inlet; 93-horizontal water inlet; 94-Water storage area; 95-Suction pit; 96-Overflow partition wall; 97-Overflow water area; 98-Anti-drilling water network; 10-Rainwater reuse mechanism; 101-Water distribution pump; 102-Water distribution supervisor; 103 -Water distribution branch pipe; 104-spray standpipe; 105-sprinkler nozzle; 106-check valve; 107-signal control valve.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. In the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

See Figures 1 through 8.

The airport slope rainwater reuse method of the present invention, the initial rainwater purification mechanism 2 and the water storage mechanism 9 are set in the airport slope area between the airport drainage ditch 1 and the off-site drainage ditch 6, comprising the following steps:

(1) Initial working condition of rainfall:

After the rainwater is collected by the airport drainage ditch 1, it is confluent to the initial rainwater purification mechanism 2. In the rainwater purification mechanism 2, it passes through the still water area 22, the large particle filter material layer 23, the small particle filter material layer 24 and the bearing plate 25 with permeable holes 26. After entering the water storage area 27, the rainwater in the water storage area 27 enters the water storage area 94 of the water storage mechanism 9 through the drainpipe 8 afterwards;

(2) Mid-term rainfall conditions:

The rainwater that exceeds the flow capacity of the initial rainwater purification mechanism 2 enters the energy dissipation and impurity interception area 91 of the water storage mechanism 9 through the slope drop ditch 7 arranged on the airport slope, and then enters the water storage area 94 of the water storage mechanism 9 ;

(3) Working conditions in the late stage of rainfall:

The rainwater that exceeds the storage capacity of the water storage area 94 of the water storage mechanism 9 overflows the overflow partition wall 96 to the overflow water outlet area 97 of the water storage mechanism 9 , and then enters the off-site drainage ditch 6 .

When it rains, the rainwater flushes the airport into the airport drainage ditch 1, and then enters the initial rainwater purification mechanism 2 from the airport drainage ditch 1. The rainwater is purified in the initial rainwater purification mechanism 2, and then enters the water storage mechanism 9 for storage, exceeding the initial rainwater purification mechanism 2. The rainwater with flow capacity is then purified through the energy dissipation and impurity interception area 91, and the rainwater exceeding the storage capacity of the water storage mechanism 9 is discharged into the off-site drainage ditch 6. The design of the present invention can gradually increase with the rainfall time. , rationally treat the rainwater in the early, middle and late stages of rainfall, so that the rainwater in the rainfall process can be basically purified, and provide a reference operation method for the treatment and disposal of rainwater in different working conditions of the airport in the early, middle, late and non-rainfall periods.

By setting the initial rainwater purification mechanism and water storage mechanism, the present invention can effectively intercept the airport rainwater, purify the rainwater at the same time, and collect and store the rainwater as a reuse water source, which not only reduces the peak flow of the airport rainwater, reduces the risk of flood disasters at the airport, but also solves the problem of It solves the problem of watering water for plants in the airport slope greening area, saves water resources, and has good environmental and economic benefits.

In one embodiment, the present invention sets the rainwater reuse mechanism 10, which also includes the following steps:

Irrigation without rainfall:

The water distribution pump 101 starts, and the rainwater in the water storage area 94 passes through the water distribution pump 101, the water distribution main pipe 102, the water distribution branch pipe 103, the water spray standpipe 104 to the sprinkler head 105 in sequence, and is sprayed to the slope green belt 4 through the sprinkler head 105.

Designed in this way, the rainwater reuse mechanism 10 can water the plants in the green area of the airport slope, and the rainwater in the water storage mechanism 9 is pumped out through the water distribution pump 101, and the rainwater passes through the water distribution main pipe 102, the water distribution branch pipe 103, and the water spray standpipe in turn. 104 enters sprinkler head 105 and sprays.

In specific implementation, the rainwater reuse mechanism 10 includes a water distribution pump 101, a water distribution main pipe 102, a water distribution branch pipe 103, a water spray standpipe 104 and a sprinkler nozzle 105, and the water inlet of the water distribution pump 101 is connected to the water storage mechanism 9 communication, the water outlet communicates with one end of the water distribution main pipe 102, the other end of the water distribution main pipe 102 communicates with the water distribution branch pipe 103, one end of the water spray riser 104 communicates with the water distribution branch pipe 103, and the other end communicates with the water distribution branch pipe 103. The sprinklers 105 are connected.

In a specific implementation, the water distribution branch pipe 103 , the water spray riser 104 and the sprinkler nozzle 105 of the water reuse mechanism 10 are arranged in the green belt 4 on the airport slope.

In one embodiment, the water distribution main pipe 102 is provided with a check valve 106 and a signal control valve 107 , and the water distribution branch pipe 103 is provided with a check valve 108 for maintenance. Designed in this way, the check valve 106 is used to prevent rainwater from flowing backwards, and the water distribution pump 101 can be automatically opened after the signal control valve is opened.

In one embodiment, the initial rainwater purification mechanism 2 includes a rainwater pool 20, and the rainwater pool 20 communicates with the airport drainage ditch 1. The rainwater pool 20 is provided with a central herringbone slope 21 and two 21, the clean water tanks on both sides, the two slopes of the central herringbone slope 21 extend to the two said clean water tanks respectively, and the still water area 22, the large particle filter Material layer 23, small-particle filter material layer 24, load-bearing plate 25 and water storage area 27, said load-bearing plate 25 is provided with permeable holes 26, and said large-particle filter material layer 23 adopts graded crushed particles with a particle size of 5-10 cm. stone, with a thickness of 20cm, and the small particle filter material layer 24 adopts graded crushed stone with a particle size of 2-5cm, with a thickness of 20cm. With this design, the rainwater discharged from the airport drainage ditch 1 enters the rainwater pool 20, and enters the two clean water tanks respectively under the guidance of the broken surface of the central herringbone slope 21. The rainwater forms the pressure required for filtration in the still water area 22, and then penetrates downward. After being filtered by the large particle filter material layer 23 and the small particle filter material layer 24 to remove impurities, it enters the water storage area 27 through the permeable hole 26 .

In one embodiment, the water storage mechanism 9 includes a water storage tank 90, which is provided with an energy dissipation and impurity interception area 91, a water storage area 94, a water suction pit 95, and an overflow water area 97. The energy dissipation and impurity interception area 91 is located above the water storage area 94 and communicates with the water storage area 94 through the vertical water inlet hole 92 and the horizontal water inlet hole 93 arranged on the wall of the energy dissipation and impurity interception area 91 , the energy dissipation and impurity interception area 91 is filled with graded gravel with a particle size of 20-30 cm, the water absorption pit 95 is located below the water storage area 94 and the top is connected to the water storage area 94, so The overflow water outlet area 97 is located on the side of the water storage area 94 close to the off-site drainage ditch 6 and an overflow partition wall 96 is arranged between the water storage area 94 and the water storage area 94 . In this design, the rainwater purified by the initial rainwater purification mechanism 2 enters the water storage area 94 for storage, and the unpurified rainwater enters the energy dissipation and impurity interception area 91. The graded gravel in this area can buffer the rainwater on the one hand. On the other hand, the filter layer is formed to filter and purify impurities, and then the rainwater enters the water storage area 94 through the vertical water inlet hole 92 and the horizontal water inlet hole 93 for storage. When the water volume in the water storage area 94 When exceeding, the rainwater then crosses the overflow partition wall 96 and enters the overflow water area 97, and then is discharged outwards.

In one embodiment, the water storage area 27 of the initial rainwater purification mechanism 2 communicates with the water storage area 94 of the water storage mechanism 9 through the drain pipe 8, and the rainwater pool 20 of the initial rainwater purification mechanism 2 is set in the The slope drop ditch 7 on the airport slope communicates with the energy dissipation and impurity interception area 91 of the water storage mechanism 9 , and a drop step 71 is set in the slope drop ditch 7 . Falling water step 71 plays the effect of buffering rainwater.

In one embodiment, the overflow water area 97 communicates with the off-site drainage ditch 6 and an anti-drilling water net 98 is provided between them. This design, on the one hand, can block rodents and other animals, and on the other hand, it can also play a role in buffering water flow.

In one embodiment, the initial rainwater purification mechanism 2 is arranged inside the slope retaining wall 3 at the beginning of the airport slope, and the water storage mechanism 9 is arranged in the gentle area 5 at the bottom of the airport slope.

In the specific implementation, the rainwater pool 20 is arranged between the airport drainage ditch 1 and the slope drop ditch 7, the net length along the drainage direction is 1-2m, and the net width in the vertical drainage direction is the width of the airport drainage ditch 1 plus 50cm; the central herringbone The width of the slope 21 is consistent with that of the airport drainage ditch 1, and the top is connected with the bottom of the airport drainage ditch 1. The slope faces the still water area 22 and the slope is not less than 10%. Not less than 30cm; the load-bearing plate 25 adopts a sand-based thin plate with a thickness of 10cm, and the diameter of the permeable holes 26 is 1cm, and the number of the permeable holes 26 is calculated and determined according to the initial treatment rainwater; the height of the water storage area 27 is 40cm.

In specific implementation, the water storage tank 90 is set at the end of the slope drop ditch 7, and the energy dissipation and impurity interception area 91 is a fixed gravel layer filled with clean graded gravel with a particle size of 20-30 cm and a thickness of not less than 50 cm.

The diameter of the vertical water inlet hole 92 and the horizontal water inlet hole 93 is 10cm, and the number is determined according to the amount of rainwater for flood control at the airport; the effective volume of the water storage area 94 is determined according to the amount of rainwater reuse; the water absorption pit 95 is arranged in the pool of the water storage mechanism 9 The lowest position, the length and width are 1.0m, and the depth is 1.0m; the height of the overflow partition wall 96 is 0.5m, and the top is level with the lower edge of the vertical water inlet 92; the width of the overflow water area 97 is 0.5m; anti-drilling water The net 98 adopts a reinforced mesh structure, and the width is consistent with the width of the drainage ditch 6 outside the site.

The water distribution pump 101 is set in the water suction pit 95 in the water storage mechanism 9, the flow rate is determined according to the calculation of the sprinkling flow rate, and the head is determined according to the height difference between the nozzle arrangement position and the lowest water level of the water storage mechanism 9 plus the total head loss of the water distribution pipeline and the outflow head of the nozzle, etc. The diameter of the water distribution main pipe 102 is DN50; the pipe diameter of the water distribution branch pipe 103 and the water spray standpipe 104 is DN25;

The drainpipe 8 has a pipe diameter of DN200 and is buried in the green belt 4 on the slope.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. An airport slope rainwater reuse method is characterized in that an initial rainwater purification mechanism (2) and a water storage mechanism are set in the airport slope area between the airport drainage ditch (1) and the off-site drainage ditch (6) (9), including the following steps: (1) Initial working condition of rainfall: After the rainwater is collected by the airport drainage ditch (1), it flows to the initial rainwater purification mechanism (2), and in the rainwater purification mechanism (2), it passes through the still water area (22), the large particle filter material layer (23), and the small particle filter material layer (24) and the load-bearing plate (25) with permeable holes (26) enter the water storage area (27), and then the rainwater in the water storage area (27) enters the storage area of the water storage mechanism (9) through the drain pipe (8) Water District (94); (2) Mid-term rainfall conditions: The rainwater that exceeds the flow capacity of the initial rainwater purification mechanism (2) enters the energy dissipation and impurity interception area (91) of the water storage mechanism (9) through the slope drop ditch (7) set on the airport slope, and then enters the storage The water storage area (94) of the water mechanism (9); (3) Working conditions in the late stage of rainfall: The rainwater that exceeds the storage capacity of the water storage area (94) of the water storage mechanism (9) exceeds the overflow partition wall (96) and overflows to the overflow water area (97) of the water storage mechanism (9), and then enters the off-site drainage ditch (6). 2. airport slope rainwater reuse method as claimed in claim 1, is characterized in that, setting rainwater reuse mechanism (10), also comprises the following steps: Irrigation without rainfall: The water distribution pump (101) starts, and the rainwater in the water storage area (94) passes through the water distribution pump (101), the water distribution main pipe (102), the water distribution branch pipe (103), the water spray standpipe (104) to the sprinkler head (105) in sequence, Spray to the slope green belt (4) through the sprinkler head (105). 3. The airport slope rainwater reuse method according to claim 2, wherein the rainwater reuse mechanism (10) comprises a water distribution pump (101), a water distribution main pipe (102), a water distribution branch pipe (103), a spray The water standpipe (104) and the sprinkler head (105), the water inlet of the water distribution pump (101) is connected with the water storage mechanism (9), and the water outlet is connected with one end of the water distribution main pipe (102). The other end of the water distribution main pipe (102) communicates with the water distribution branch pipe (103), one end of the water spray riser (104) communicates with the water distribution branch pipe (103), and the other end communicates with the sprinkler head (105 ) connected. 4. the airport slope rainwater reuse method as claimed in claim 1 or 2 or 3, is characterized in that, described primary rainwater purification mechanism (2) comprises rainwater pool (20), and described rainwater pool (20) is equipped with There is a central gable slope (21) and two clean water tanks respectively located on both sides of the central gable slope (21), and the two slopes of the central gable slope (21) extend to the two clean water tanks respectively. , the water purification tank is sequentially provided with a still water area (22), a large particle filter material layer (23), a small particle filter material layer (24), a load bearing plate (25) and a water storage area (27) from top to bottom. , the bearing plate (25) is provided with permeable holes (26). 5. airport slope rainwater reuse method as claimed in claim 4, is characterized in that, described large particle filter material layer (23) adopts the graded crushed stone of particle diameter 5-10cm, and described small particle filter material layer (24) Use graded gravel with a particle size of 2-5 cm. 6. the airport slope rainwater reuse method as claimed in claim 1 or 2 or 3, is characterized in that, described water storage mechanism (9) comprises water storage tank (90), is provided with in described water storage tank (90) Energy dissipation and impurity interception area (91), water storage area (94), water suction pit (95) and overflow water outlet area (97), the energy dissipation and impurity interception area (91) is located in the water storage area (94 ) and communicate with the water storage area (94) through the vertical water inlet hole (92) and the horizontal water inlet hole (93) arranged on the wall of the energy dissipation and impurity interception area (91), the water absorption pit (95) is located below the water storage area (94) and the top is connected to the water storage area (94), and the overflow water area (97) is located near the off-site drainage of the water storage area (94) An overflow partition wall (96) is arranged between one side of the ditch (6) and the water storage area (94). 7. The method for reuse of rainwater on an airport slope according to claim 6, characterized in that the energy dissipation and impurity interception area (91) is filled with graded crushed stones with a particle size of 20-30 cm. 8. The airport slope rainwater reuse method according to claim 6, characterized in that, the overflow water area (97) is connected with the off-site drainage ditch (6) and an anti-drilling water is provided between the two net (98). 9. the airport slope rainwater reuse method as claimed in claim 1 or 2 or 3, is characterized in that, described initial stage rainwater purification mechanism (2) passes drainpipe (8) and slope drop ditch (7) and The water storage mechanism (9) is connected, and a water drop step (71) is arranged in the slope water drop ditch (7). 10. The airport slope rainwater reuse method according to claim 1, 2 or 3, characterized in that, the initial rainwater purification mechanism (2) is arranged inside the slope retaining wall (3) at the beginning of the airport slope , the water storage mechanism (9) is arranged in the gentle area (5) at the bottom of the airport slope.

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