CN114232553A - Temperature-adjusting and ice and snow melting spraying system based on permeable pavement - Google Patents
Temperature-adjusting and ice and snow melting spraying system based on permeable pavement Download PDFInfo
- Publication number
- CN114232553A CN114232553A CN202111588862.7A CN202111588862A CN114232553A CN 114232553 A CN114232553 A CN 114232553A CN 202111588862 A CN202111588862 A CN 202111588862A CN 114232553 A CN114232553 A CN 114232553A
- Authority
- CN
- China
- Prior art keywords
- valve
- pipeline
- water
- air
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000002844 melting Methods 0.000 title claims abstract description 51
- 230000008018 melting Effects 0.000 title claims abstract description 32
- 238000005507 spraying Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 154
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- 230000001105 regulatory effect Effects 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 6
- 239000005413 snowmelt Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 206010015856 Extrasystoles Diseases 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 239000012466 permeate Substances 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 13
- 238000001816 cooling Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/002—Roadside storage of gritting or solid thawing materials, e.g. grit or salt bins
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
- E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H10/00—Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials
- E01H10/005—Permanently-installed devices for applying gritting or thawing materials, e.g. for spreading grit, for spraying de-icing liquids
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the technical field of municipal engineering and discloses a temperature-regulating and ice and snow melting spraying system based on a permeable pavement, which comprises a speed bump pressurizing device, a temperature sensing valve I, a waterproof thin layer, a nozzle, a pressure storage device, a temperature sensing valve II and a snow melting agent box, the invention relates to a triple float valve, a water storage tank, a filter bag, a water collecting diversion pipeline and a waterproof bonding layer, wherein the triple float valve is arranged in the water storage tank, a nozzle and the water collecting diversion pipeline are connected to the water tank through pipelines, a speed bump pressurizing device pressurizes a pressure accumulating device by vehicle pressure extrusion air of a speed bump and then releases the pressure to the water storage tank to extrude water into the pipeline to be sprayed to a road surface, a snow melting agent is sprayed in summer and winter, the snow melting agent is not sprayed at normal temperature, rainwater permeates the road surface and enters the water collecting diversion pipeline along the waterproof bonding layer to be filtered to the water storage tank.
Description
Technical Field
The invention relates to the technical field of municipal engineering, in particular to a temperature-regulating and ice and snow melting spraying system based on a permeable pavement.
Background
At present along with the construction in sponge city, the town road adopts the bituminous paving that permeates water to prevent urban waterlogging more to carry out prefiltration to the rainwater through set up under the lane road surface and purify collection device or change the road surface under the structure and collect the discharge again, but these methods do not all utilize the water of collecting, and have changed lane surface course structure, can influence the road surface performance, need dig the road surface during later maintenance, and it is very big to influence vehicle traffic.
Bituminous paving need the watering cooling when summer, the watering cooling is generally that the manual driving watering lorry sprays along the road at present, can not in time cool down the whole road section, and the bituminous paving that permeates water is sprayed the back, water can permeate the road surface, make the faster cooling ageing short that leads to of road surface moisture evaporation, it sprays to need to drive the watering lorry many times, also there is the road can set up the motor under the road surface and draw water and spray, but this kind of method is with high costs can not use on a large scale, the spout setting damages easily on the road surface, maintenance replacement equipment need destroy the road surface and interrupt the traffic.
In winter, the road is accumulated with snow and frozen to reduce the friction force of the road surface, at the moment, the road needs to be cleaned to prevent the snow and ice from slipping, most of the existing methods are manual or mechanical snow and ice removal, but the method is low in efficiency and time-consuming and labor-consuming, the other common method is to spray a snow melting agent, but the method can not simultaneously spray the snow melting agent to the whole road section, and the snow melting agent can melt the road surface and permeate the road surface with the snow melting agent, so that the concentration of the snow melting agent on the road surface is reduced, the effect is poor, a small amount of roads are provided with motors to spray the snow melting agent under the road surface, but the method is high in cost and inconvenient to maintain.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a temperature-regulating and ice and snow melting spraying system based on a permeable pavement, which solves the problems.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a temperature-adjusting and ice-snow-melting spraying system based on a permeable pavement comprises a speed bump pressurizing device, a first temperature-sensing valve, a waterproof thin layer, a nozzle, a pressure storage device, a second temperature-sensing valve, a snow-melting agent box, a triple ball float valve, a water storage tank, a filter bag, a water-collecting diversion pipeline and a waterproof bonding layer, wherein the lower end part of the speed bump pressurizing device, the first temperature-sensing valve and the waterproof bonding layer are embedded in the lower layer of the permeable pavement, the water storage tank is arranged below a sidewalk, the first temperature-sensing valve is arranged on two sides of a lane and is close to the pavement, the second temperature-sensing valve is arranged below the sidewalk and is close to the pavement, the speed bump pressurizing device is connected with the pressure storage device through a pipeline A1, the first temperature-sensing valve is arranged in the middle of a pipeline A1, the pressure storage device is connected with the water storage tank through a pipeline II A2, and the nozzle is connected with the water storage tank through a pipeline III A3 and extends to the inner bottom;
the snow-melting agent box is arranged on the outer side of the sidewalk, the bottom end of the snow-melting agent box is connected with the triple type floating ball valve through a pipeline four A4, the temperature sensing valve two is arranged on a pipeline four A4, and the triple type floating ball valve is arranged in the water storage tank;
the water collecting and distributing pipeline comprises two branch pipelines which are communicated with the same main pipeline, the upper end of the opening of the main pipeline is positioned below the permeable inner side, the water outlets of the branch pipelines are communicated with the middle part of the side wall of the water storage tank, and a filter bag is added at a connecting port;
the waterproof thin layers are laid on the two sides of the lane along the road direction, the depth of the waterproof thin layers extends from the lower end of a sidewalk curb to the upper end of the opening of the main pipeline of the water collecting and distributing pipeline, and the lower end of the opening of the main pipeline is attached to the upper surfaces of the two sides of the arched waterproof bonding layer.
The system converts the pressure of the vehicle to the deceleration strip into air pressure to serve as a power source, collects, stores and filters rainwater by combining the characteristics of a permeable pavement and serves as a spraying material, the self-created triple float valve is used for achieving the functions of self-liquid supplement and self-drainage, and the electronic temperature sensing valve is used for achieving self-temperature-sensing spraying of the whole system.
Preferably, the deceleration strip pressurizing device comprises a middle deceleration strip, the middle deceleration strip is connected with an air box through a plurality of supports, the upper surface of the air box is provided with a plurality of one-way air inlet valves, a plurality of springs are arranged inside the air box and connected with the upper surface and the lower surface of the air box, when a vehicle passes through the deceleration strip, air in the air box is extruded into a pipeline, then the springs rebound to return the deceleration strip to the original position, and meanwhile, the air is replenished into the air box from the one-way air inlet valves, so that the deceleration strip is pressurized repeatedly.
Preferably, the air box comprises a box body and a movable plug plate, the movable plug plate is sleeved in the box body, the elastic movement of the movable plug plate in the box body is realized by a plurality of fixed springs, two side walls of the box body are communicated with a water inlet port A1 of a left pipeline and a right pipeline, the movable plug plate is fixed at the bottom ends of a plurality of pillars, and a plurality of one-way air inlet valves are arranged at the top of the movable plug plate;
preferably, the middle deceleration strip is exposed above the permeable pavement, the top of the middle deceleration strip is an arc surface, the front end and the rear end of the arc surface extend to the lower ends of the front side wall and the rear side wall, and when a vehicle rolls, the top of the middle deceleration strip is lowered to the horizontal position of the pavement.
Preferably, the pressure accumulating device comprises a spherical shell and a rubber air bag sleeved in the spherical shell, the inner surface of the spherical shell is connected with the outer surface of the rubber air bag through a plurality of springs with high elastic coefficients, one end of a first pipeline A1 and one end of a second pipeline A2 penetrate through the spherical shell and are connected to the rubber air bag respectively, a first electric control pressure regulating valve is arranged at the joint of the end of the first pipeline A1 and the rubber air bag, a one-way air valve is arranged at the joint of the spherical shell and the end of the second pipeline A2, and a second electric control pressure regulating valve is arranged at the joint of the upper end of the second pipeline A2 and the rubber air bag;
preferably, a maximum value and a minimum value (the maximum value is 0.6MPa to 1.0MPa, and the minimum value is 0.1MPa to 0.3MPa) are set for both the first electric control pressure regulating valve and the second electric control pressure regulating valve, when the air pressure in the rubber air bag is at the minimum value, the first electric control pressure regulating valve is opened, the second electric control pressure regulating valve is closed, the air is extruded into the rubber air bag from the pipeline, the rubber air bag is gradually expanded and the spring is compressed, the air pressure in the rubber air bag is increased to the maximum value, the first electric control pressure regulating valve is closed, the second electric control pressure regulating valve is opened, the spring rebounds and the rubber air bag retracts to extrude the air into the pipeline until the air pressure in the rubber air bag returns to the minimum value, the second electric control pressure regulating valve is closed, the first electric control pressure regulating valve is opened, and spraying is carried out circularly.
Preferably, the nozzle is arranged close to a curb of a sidewalk, the nozzle is horizontally oriented to the roadway surface, the water outlet end of the pipeline three A3 penetrates through the curb to be connected with the nozzle, and when spraying is needed, water flows from the pipeline three A3 to the nozzle to be sprayed to the roadway surface.
Preferably, the triple type ball float valve comprises two water inlet valves, two one-way valves, two valve plugs I, a valve plug II, two rotating rods I, a rotating rod II, a connecting rod, a water discharge valve and a floating ball, wherein piston ends of the two valve plugs I are arranged in the two water inlet valves, piston ends of the valve plugs II are arranged in the water discharge valve, the two water inlet valves and the water discharge valve are connected into a whole through the connecting rod, the rotating rods I and the rotating rods II, the water inlet valves and the one-way valves on one side are connected to a pipeline IV 4, the water inlet valves and the one-way valves on the other side are connected to a municipal water supply pipeline network through water inlet pipes, and the water discharge valve is connected to a sewer through a water discharge pipe penetrating through the water storage tank.
Preferably, the connecting rods are composed of a transverse rod, a vertical rod and an inclined rod, the vertical rod is arranged at the bottom of the upper end of the inclined rod, the middle of the transverse rod is fixed at the end part of the upper end of the inclined plate, two ends of the transverse rod are movably connected with the two connecting rods respectively, the bottom end of the vertical rod is movably connected with the bottom end of the movable rod, the lower end of the inclined rod forms a bevel, one section below the bevel is parallel to the vertical surface, and the end part of the bevel is fixed on the floating ball.
Preferably, a rectangular rubber plate is hinged at the position of a valve port in the check valve, one side of the lower end of the rectangular rubber plate is abutted against the edge of the check valve and cannot rotate, the other side of the rectangular rubber plate can rotate freely, when the liquid level descends, a floating ball drives a connecting rod to lift one end of a first connecting rotating rod, the second rotating rod is blocked at the moment, a second valve plug connected with the second rotating rod cannot move, a drain valve serves as one of supporting points when the connecting rod rotates, the first rotating rod rotates under the driving of the connecting rod to pull the first valve plug outwards gradually to open a valve, water flow can pass through the check valve and then pass through a water inlet valve to achieve the liquid supplementing effect, if the liquid supplementing is carried out, a pressure accumulator releases air pressure, taking the water inlet valve as an example, air flow can enter the water inlet valve to blow the rectangular rubber plate to the non-rotating side through the check valve, so that the air pressure cannot leak, when the liquid level rises, the floating ball drives the connecting rod to press one end of the first connecting rotating rod, but because the first rotating rod is blocked at the moment, the first valve plug connected with the first valve plug cannot move, the water inlet valve serves as a pivot for rotation of the connecting rod, the second rotating rod rotates under rotation of the connecting rod to pull the second valve plug upwards to gradually open the valve, water flow can enter the water discharge pipe through the water discharge valve to achieve the effect of water discharge, and as the pressure accumulating device sprays water when releasing air pressure, the liquid level can drop and cannot reach the liquid level height when water discharge is needed, air pressure cannot leak from the water discharge valve, and the effects of liquid self-supplementing and self-water discharge are controlled through the above process.
(III) advantageous effects
Compared with the prior art, the invention provides a temperature-regulating and ice-snow-melting spraying system based on a permeable pavement, which has the following beneficial effects:
1. the temperature sensing valve is arranged on the road surface to control whether water is sprayed or not to cool the road surface, when the road surface is at high temperature, the temperature sensing valve of the lane road surface is opened, the pressure storage device connected with the temperature sensing valve is pressurized and then releases pressure to spray water, the temperature sensing valve can be selectively opened when the temperature of different road sections is different, and the nozzle is laid along the road, so that compared with the existing method, the flexibility is strong, the temperature sensing valve can spray water to the whole road section at the same time, and can be opened and closed at any time, the temperature can be cooled in time, the problem that the spraying cooling effect is poor due to the water permeability of a permeable asphalt road surface, the cost and the time are increased due to repeated spraying is solved, the labor is not needed, and the temperature sensing valve can be widely used at low cost.
2. The invention controls whether to spray the snow-melting agent or not by arranging the temperature sensing valves at the road surface, when the temperature is low in winter, the two temperature sensing valves are opened, the pressure storage device is pressurized, the snow-melting agent and water enter the water storage tank through the triple ball float valve and are mixed and then are pressurized and sprayed on the road surface, compared with manual or mechanical ice and snow removal and the arrangement of a motor for spraying the snow-melting agent, the invention can be widely used at low cost, and the snow-melting agent can be sprayed on the whole road section at the same time only by manually supplementing the snow-melting agent, thereby solving the problem that the snow-melting effect is poor due to the penetration of the snow-melting agent caused by the water permeability of the pervious asphalt and the time and cost are increased due to repeated spraying, and effectively saving the working time and the manpower resources.
3. The invention can realize the benefits of self-water-replenishing and self-water-draining simultaneously through the self-created triple-type floating ball valve, and the liquid level of the water storage tank can be sensed to descend automatically through the triple-type floating ball valve due to the extremely high spraying amount at high temperature in summer, the water inlet valve is opened to supply water, water can be supplied to the system in time, and the mechanical self-water-replenishing is realized without manual or other energy supply.
4. According to the invention, the water permeability of the permeable asphalt is utilized, and the waterproof thin layer, the water collecting and distributing pipeline and the waterproof bonding layer are combined to effectively prevent rainwater from permeating into the pavement base layer, collect and filter rainwater, store the rainwater into the water storage tank to be sprayed, collect and utilize the water sprayed to the pavement again except for evaporation, realize cyclic utilization, reduce water resource waste, and trigger the triple float valve to open the drain valve to discharge the primarily filtered water into the sewer pipeline when the water collected by the water tank is excessive, so that the effect of self-collecting and self-draining is realized.
5. The deceleration strip is arranged on the roadway surface, and other devices are arranged under the pavement of the sidewalk, so that the performance of the pavement cannot be influenced due to the change of the pavement structure.
6. The size of the air box in the deceleration strip pressurizing device can be changed to adapt to different traffic road sections, the volume is reduced if the traffic is large, the volume is increased if the traffic is large, the maximum value of the electric control pressure regulating valve in the pressure accumulating device is changed to adapt to the road sections with different road widths, the road width is increased if the traffic is large, otherwise, the traffic is reduced, and therefore the system can adapt to the road sections with different traffic volumes and road widths and is high in flexibility.
7. The nozzle is arranged on the side face of the sidewalk curb stone, so that the nozzle cannot lose effect due to passing of vehicles or blockage of road surface broken stones or other garbage, the damage rate of the nozzle is greatly reduced, and the service life is prolonged.
8. The invention utilizes the pressure of the vehicle passing through the deceleration strip as a power source, does not need manual work or electrification, is more energy-saving and environment-friendly compared with the prior art, has large daily traffic volume of urban roads, ensures sufficient power and completely conforms to the concept of environment-friendly cities.
9. The invention has a plurality of functions simultaneously, the cost required by each function is lower, and the economic cost and the time cost saved after combination are multiplied.
Drawings
FIG. 1 is a schematic view of the overall structure of a multifunctional self-spraying system based on a permeable pavement according to the present invention;
FIG. 2 is a schematic view of the internal configuration of the tank and connections to various devices and piping;
FIG. 3 is a schematic diagram of the external structure of a deceleration strip pressurizing device and the internal structure of an air box of the deceleration strip pressurizing device;
FIG. 4 is a schematic view of the internal construction of the pressure accumulating apparatus;
FIG. 5 is a schematic view of a water collecting and distributing pipe configuration;
FIG. 6 is a schematic view of the external structure of a triple ball cock;
FIG. 7 is a schematic view showing the internal structure of a triple type float valve;
fig. 8 is an enlarged schematic view of A, B, C in fig. 7.
In the figure: 1 deceleration strip pressurizing device, 101 deceleration strip, 102 support, 103 one-way air inlet valve, 104 air box, 1041 box, 1042 movable plug plate, 105 spring I, 2 temperature-sensing valve I, 3 waterproof thin layer, 4 nozzle, 5 pressure accumulator, 501 spherical shell, 502 rubber air bag, 503 spring II, 504 electric control pressure regulating valve II, 505 electric control pressure regulating valve I, 506 one-way air valve, 6 temperature-sensing valve II, 7 snow melt agent box, 8 triple float valve, 81 water inlet valve, 82 one-way valve, 821 rectangular rubber plate, 83 valve plug I, 84 valve plug II, 85 rotating rod I, 86 rotating rod II, 87 connecting rod, 88 drain valve, 89 float ball, 9 water storage tank, 10 filter bag, 11 water collecting and distributing pipeline, 111 main pipeline, 112 branch pipeline, 12 waterproof bonding layer, A1 pipeline I, A2 pipeline II, A3 pipeline III, A4 pipeline IV, 18 water inlet pipe, 19 drain pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 8, the present invention provides a technical solution: a temperature-adjusting and ice-snow-melting spraying system based on a permeable pavement comprises a speed bump pressurizing device 1, a temperature-sensing valve I2, a waterproof thin layer 3, a nozzle 4, a pressure accumulator 5, a temperature-sensing valve II 6, a snow-melting agent box 7, a triple ball float valve 8, a water storage tank 9, a filter bag 10, a water-collecting flow-dividing pipeline 11 and a waterproof bonding layer 12, wherein the lower end part of the speed bump pressurizing device 1, the temperature-sensing valve I2 and the waterproof bonding layer 12 are embedded in the lower layer of the permeable pavement, the nozzle 4 is arranged at a position close to a sidewalk curb, the nozzle 4 horizontally faces the roadway pavement, the water outlet end of a pipeline III A3 penetrates through the curb to be connected with the nozzle 4, when spraying is needed, water flows to the nozzle 4 from a pipeline III A3 to be sprayed to the pavement, the water storage tank 9 is arranged below the sidewalk, the temperature-sensing valve I2 is arranged on two sides of the roadway and close to the sidewalk, the temperature-sensing valve II 6 is arranged below the sidewalk and close to the roadway, the deceleration strip pressurizing device 1 is connected with the pressure accumulating device 5 through a first pipeline A1, the temperature sensing valve I2 is arranged in the middle of a first pipeline A1, the pressure accumulating device 5 is connected with the water storage tank 9 through a second pipeline A2, and the nozzle 4 is connected with the water storage tank 9 through a third pipeline A3 and extends to the inner bottom;
the snow-melting agent box 7 is arranged on the outer side of the sidewalk, the bottom end of the snow-melting agent box is connected with the triple type ball float valve 8 through a pipeline four A4, the temperature sensing valve two 6 is arranged on a pipeline four A4, and the triple type ball float valve 8 is arranged inside the water storage tank 9;
moisture collection flow distribution pipeline 11 is including two branch pipelines 112, two branch pipelines 112 switch-ons have same trunk line 111, trunk line 111 opening upper end is located below permeating water the inside, branch pipeline 112 delivery port switch-on is at the middle part of storage water tank 9 lateral wall, and add filter package 10 at the connector, waterproof thin layer 3 is laid in lane both sides along the road direction, the degree of depth extends to moisture collection flow distribution pipeline 11's trunk line 111 opening upper end from pavement curb lower extreme, trunk line 111 opening lower extreme and bow-shaped waterproof bonding layer 12 both sides upper surface laminating.
The speed bump pressurizing device 1 comprises a middle speed bump 101, the middle speed bump 101 is connected with an air box 104 through a plurality of struts 102, the upper surface of the air box 104 is provided with a plurality of one-way air inlet valves 103, the air box 104 comprises a box 1041 and a movable plug 1042, the movable plug 1042 is sleeved inside the box 1041, the movable plug 1042 elastically moves inside the box 1041 through a plurality of fixed springs, two side walls of the box 1041 are communicated with water inlet ports of a left pipeline A1 and a right pipeline A1, the movable plug 1042 is fixed at the bottom ends of the plurality of struts 102, the plurality of one-way air inlet valves 103 are arranged at the top of the movable plug 1042, a plurality of springs 105 are arranged inside the movable plug 105 and connected with the upper surface and the lower surface of the air box, when a vehicle passes through the speed bump 101, the air in the air box 104 is extruded into the pipeline A1, then the springs 105 rebound to enable the speed bump 101 to return to the original position, and meanwhile, the air is replenished into the air box 104 from the one-way air inlet valves 103, with this circulation pressurization many times, well deceleration strip 101 exposes above the permeable pavement, and the top is the arc surface, and the arc surface front and back end extends to front and back lateral wall lower extreme, and when the vehicle rolled, well deceleration strip 101 top dropped to road surface looks horizontal position.
The pressure accumulator 5 comprises a spherical shell 501 and a rubber air bag 502 sleeved in the spherical shell 501, the inner surface of the spherical shell 501 and the outer surface of the rubber air bag 502 are connected through a plurality of springs 503 with high elastic coefficient, one end of a pipeline A1 and one end of a pipeline B2 respectively penetrate through the spherical shell 501 and are connected to the rubber air bag 502, a first electric control pressure regulating valve 505 and a one-way air valve 506 are arranged at the joint of the end part of a pipeline A1 and the rubber air bag 502, a second electric control pressure regulating valve 504 is arranged at the joint of the upper end port of a pipeline B2 and the rubber air bag 502, a maximum value and a minimum value (the maximum value is 0.6 MPa-1.0 MPa, and the minimum value is 0.1 MPa-0.3 MPa) are arranged for the first electric control pressure regulating valve 505 and the second electric control pressure regulating valve 504, when the pressure in the rubber air bag is at the minimum value, the first electric control pressure regulating valve 505 is opened, the second electric control pressure regulating valve 504 is closed, the air is extruded into the rubber air bag 502 from the pipeline A1, because the one-way air valve 506 can only enter or not exit, the rubber air bag 502 is gradually expanded, the second spring 503 is compressed, the air pressure in the rubber air bag 502 rises to the maximum value, the first electrically controlled pressure regulating valve 505 is closed, the second electrically controlled pressure regulating valve 504 is opened, the second spring 503 rebounds and the rubber air bag 502 retracts to enable the air to be squeezed into the second pipeline A2 until the air pressure in the rubber air bag 502 returns to the minimum value, the second electrically controlled pressure regulating valve 504 is closed, and the first electrically controlled pressure regulating valve 505 is opened, so that cyclic spraying is realized.
The triple type float valve 8 comprises two water inlet valves 81, two one-way valves 82, two valve plugs 83, two valve plugs 84, two rotating rods 85, two rotating rods 86, a connecting rod 87, a water discharge valve 88 and a floating ball 89, wherein the piston ends of the two valve plugs 83 are arranged inside the two water inlet valves 81, the piston ends of the valve plugs 84 are arranged inside the water discharge valve 88, the two water inlet valves 81 and the water discharge valve 88 are connected into a whole through the connecting rod 87, the rotating rods 85 and the rotating rods 86, the water inlet valve 81 and the one-way valve 82 on one side are connected to a pipeline A4, the water inlet valve 81 and the one-way valve 82 on the other side are connected to a municipal water supply pipeline network through a water inlet pipe 18, the water discharge valve 88 is connected to a sewer through a water discharge pipe 19 penetrating through a water storage tank 9, the connecting rod 87 comprises a cross rod, a vertical rod and an inclined rod, the vertical rod is arranged at the bottom of the upper end of the inclined rod, the middle part of the cross rod is fixed at the upper end of the inclined rod, and two ends of the cross rod are respectively movably connected with the two connecting rod, the bottom end of the vertical rod is movably connected with the bottom end of the movable rod, the lower end of the inclined rod forms a break angle, a section below the break angle is parallel to a vertical surface, the end part of the break angle is fixed on a floating ball 89, a rectangular rubber plate 821 is hinged at the position of an internal valve port of the one-way valve 82, one side of the lower end of the break angle is propped against the edge of the one-way valve 82 and cannot rotate, the other side of the lower end of the break angle can rotate freely, when the liquid level descends, the floating ball 89 drives a connecting rod 87, one end of the connecting rod 85 is lifted, at the moment, a second rotating rod 86 is clamped, a second valve plug 84 connected with the second rotating rod cannot move, a drain valve 88 serves as one fulcrum when the connecting rod 87 rotates, the first rotating rod 85 rotates under the driving of the connecting rod 87 to pull the first valve plug 83 outwards gradually to open the valve, water flow can pass through the one-way valve 82 to achieve the liquid supplementing effect through the water inlet valve 81, if the air pressure of the pressure accumulator 5 is released during liquid supplementing, taking the water inlet valve 81 as an example, air flow can enter the water inlet valve 81 to blow the one-way valve 82 to blow the rectangular rubber plate 821 to the one-way valve 82 to the non-rotatable side, when the liquid level rises, the floating ball 89 drives the connecting rod 87 to press down one end of the first connecting rotating rod 85, but the first rotating rod 85 is blocked at the moment, the first valve plug 83 connected with the first rotating rod cannot move, the water inlet valve 81 serves as a pivot of the rotating of the connecting rod 87, the second rotating rod 86 rotates under the rotation of the connecting rod to pull the second valve plug 84 upwards to gradually open the valve, water can enter the drain pipe 19 through the drain valve 88 to achieve the effect of draining, the liquid level can drop because the pressure accumulator 5 sprays water when releasing the air pressure, and the liquid level height when draining is not achieved, so that the air pressure cannot leak from the drain valve 88, and the effects of self-supplementing liquid and self-draining are controlled through the above processes.
The system converts the pressure of the vehicle to the deceleration strip 101 into air pressure to serve as a power source, collects, stores and filters rainwater by combining the characteristics of a permeable pavement and serves as a spraying material, the self-created triple float valve 8 is used for achieving the functions of self-liquid supplement and self-drainage, and the electronic temperature sensing valve is used for achieving self-temperature sensing spraying of the whole system.
The working process of the temperature-regulating and ice-snow-melting spraying system based on the permeable pavement comprises the following steps:
during the normal atmospheric temperature, temperature sensing valve 2 is closed, deceleration strip pressure device 1 then can't pressurize for pressure accumulator 5, consequently can not spray the road surface, when the road surface has the rainwater, then can permeate road surface to waterproof bonding layer 12, because waterproof bonding layer 12 is middle bellied shape, so during rainwater can following current to the branch flow channel 11 that catchments of both sides, rethread filter package 10 is filtered and is stored to storage water tank 9, then can trigger the drain valve 88 of trigeminy formula ball cock assembly 8 and open the drainage when storing excessively, arrange the sewer through drain pipe 19.
When the temperature is high, the municipal water supply pipeline starts to supply water, the first temperature sensing valve 2 is opened, the second temperature sensing valve 6 is closed, when a vehicle passes through, the pressure storage device 5 is pressurized by the speed bump pressurizing device 1, when the pressure is increased to the maximum value of the second electric control pressure regulating valve 504 and the first electric control pressure regulating valve 505, the pressure is started to be applied to the water storage tank 9, water is sprayed to the road surface, if the stored water quantity is insufficient, the water inlet valve 81 of the triple float valve 8 is triggered to be opened, water is supplemented to the water storage tank 9 through the water inlet pipe 18, but because the second temperature sensing valve 6 is closed, the snow melting agent remained in the snow melting agent tank 7 cannot flow into the water storage tank 9.
At low temperature, the municipal water supply pipeline stops supplying water, snow melting agent can be supplemented into the snow melting agent tank 7 manually according to weather selectivity, the first temperature sensing valve 2 and the second temperature sensing valve 6 are opened, when a vehicle passes through, the pressure storage device 5 is pressurized by the speed bump pressurizing device 1, when the pressure is increased to the maximum value of the second electric control pressure regulating valve 504 and the first electric control pressure regulating valve 505, the water storage tank 9 is pressurized to spray the snow melting agent to the road surface, if the snow melting agent in the water storage tank 9 is insufficient, the water inlet valve 81 of the triple valve ball valve 8 is triggered to be opened, the snow melting agent in the snow melting agent tank 7 is supplemented into the water storage tank 9 through the pipeline four A4, and the municipal water supply pipeline stops supplying water, so that water spraying when the snow melting agent is not required to be sprayed at low temperature can not occur.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a temperature regulation and ice and snow melt sprinkling system based on permeable pavement, including deceleration strip pressure device (1), temperature sensing valve (2), waterproof thin layer (3), spout (4), pressure accumulator (5), temperature sensing valve two (6), snow melt agent case (7), trigeminy formula ball-cock assembly (8), storage water tank (9), filter package (10), catchment shunt tubes way (11), waterproof tie coat (12), deceleration strip pressure device (1) lower extreme portion, temperature sensing valve (2), in waterproof tie coat (12) bury underground and permeable pavement lower floor, its characterized in that: the water storage tank (9) is arranged below a sidewalk, the first temperature sensing valves (2) are arranged on two sides of a lane and are close to the road surface, the second temperature sensing valves (6) are arranged below the sidewalk and are close to the road surface, the speed bump pressurizing device (1) is connected with the pressure accumulator (5) through the first pipeline (A1), the first temperature sensing valves (2) are arranged in the middle of the first pipeline (A1), the pressure accumulator (5) is connected with the water storage tank (9) through the second pipeline (A2), and the nozzle (4) is connected with the water storage tank (9) through the third pipeline (A3) and extends to the inner bottom;
the snow-melting agent box (7) is installed on the outer side of the sidewalk, the bottom end of the snow-melting agent box is connected with the triple type floating ball valve (8) through a pipeline four (A4), the temperature sensing valve two (6) is arranged on the pipeline four (A4), and the triple type floating ball valve (8) is arranged inside the water storage tank (9);
the water collecting and distributing pipeline (11) comprises two branch pipelines (112), the two branch pipelines (112) are communicated with the same main pipeline (111), the upper end of the opening of the main pipeline (111) is positioned below the permeable inner side, the water outlets of the branch pipelines (112) are communicated with the middle part of the side wall of the water storage tank (9), and a filtering bag (10) is added to a connecting port;
the waterproof thin layers (3) are paved on two sides of the lane along the road direction, the depth of the waterproof thin layers extends from the lower end of a sidewalk curb to the upper end of an opening of a main pipeline (111) of the water collecting and distributing pipeline (11), and the lower end of the opening of the main pipeline (111) is attached to the upper surfaces of two sides of the arched waterproof bonding layer (12).
2. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as claimed in claim 1, wherein: the deceleration strip pressurizing device (1) comprises a middle deceleration strip (101), the middle deceleration strip (101) is connected with an air box (104) through a plurality of supporting columns (102), a plurality of one-way air inlet valves (103) are arranged on the upper surface of the air box (104), a plurality of springs (105) are arranged inside the air box and connected with the upper surface and the lower surface of the air box, when a vehicle passes through, the deceleration strip (101) extrudes air in the air box (104) into a pipeline (A1), then the springs (105) rebound to enable the deceleration strip (101) to return to the original position, and meanwhile, the air is replenished into the air box (104) again from the one-way air inlet valves (103) so as to be pressurized repeatedly.
3. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as recited in claim 2, characterized in that: the air box (104) comprises a box body (1041) and a movable plug plate (1042), the movable plug plate (1042) is sleeved inside the box body (1041), elastic movement of the movable plug plate (1042) inside the box body (1041) is achieved through a plurality of fixed springs (105), two side walls of the box body (1041) are communicated with water inlet ports of a left pipeline (A1) and a right pipeline (A1), the movable plug plate (1042) is fixed at the bottom ends of a plurality of supporting columns (102), and a plurality of one-way air inlet valves (103) are arranged at the top of the movable plug plate (1042);
4. the temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as recited in claim 2, characterized in that: well deceleration strip (101) expose above the permeable pavement, and the top is the arc surface, and the arc surface front and back end extends to front and back lateral wall lower extreme, when the vehicle rolled, well deceleration strip (101) top dropped to road surface looks horizontal position.
5. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as claimed in claim 1, wherein: the pressure accumulating device (5) comprises a spherical shell (501) and a rubber air bag (502) sleeved in the spherical shell, the inner surface of the spherical shell (501) is connected with the outer surface of the rubber air bag (502) through a plurality of springs II (503) with high elastic coefficients, one end of a pipeline I (A1) and one end of a pipeline II (A2) respectively penetrate through the spherical shell (501) and are connected to the rubber air bag (502), an electric control pressure regulating valve I (505) is arranged at the joint of the end part of the pipeline I (A1) and the rubber air bag (502), a one-way air valve (506) is arranged at the joint of the spherical shell, and an electric control pressure regulating valve II (504) is arranged at the joint of the upper end port of the pipeline II (A2) and the rubber air bag (502).
6. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as recited in claim 5, characterized in that: a maximum value and a minimum value are set for the first electric control pressure regulating valve (505) and the second electric control pressure regulating valve (504), when the air pressure in the rubber air bag (502) is at the minimum value, the first electric control pressure regulating valve (505) is opened, the second electric control pressure regulating valve (504) is closed, the air is extruded into the rubber air bag (502) from the first pipeline (A1), and the air valve (506) can only enter and can not exit, the rubber air bag (502) is gradually expanded and the spring II (503) is compressed, the air pressure in the rubber air bag (502) rises to the maximum value, the electrically controlled pressure regulating valve I (505) is closed, the electrically controlled pressure regulating valve II (504) is opened, the spring II (503) rebounds and the rubber air bag (502) retracts to enable air to be squeezed into the pipe II (A2) until the air pressure in the rubber air bag (502) returns to the minimum value, the electrically controlled pressure regulating valve II (504) is closed, and the electrically controlled pressure regulating valve I (505) is opened, so that water or snow melt agent is sprayed in a circulating mode.
7. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as claimed in claim 1, wherein: the nozzle (4) is arranged at a position close to a sidewalk curb, the nozzle (4) faces the roadway surface horizontally, the water outlet end of the pipeline III (A3) penetrates through the curb to be connected with the nozzle (4), and when spraying is needed, water flows to the nozzle (4) from the pipeline III (A3) and is sprayed to the roadway surface.
8. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as claimed in claim 1, wherein: the triple type float valve (8) comprises two water inlet valves (81), two one-way valves (82), two valve plugs I (83), a valve plug II (84), two rotating rods I (85), a rotating rod II (86), a connecting rod (87), a drain valve (88) and a float ball (89), wherein the piston ends of the two valve plugs I (83) are arranged inside the two water inlet valves (81), the piston ends of the valve plug II (84) are arranged inside the drain valve (88), two water inlet valves (81) and two water outlet valves (88) are connected into a whole through a connecting rod (87), a first rotating rod (85) and a second rotating rod (86), the water inlet valve (81) and a one-way valve (82) on one side are connected to a pipeline IV (A4), the water inlet valve (81) and the one-way valve (82) on the other side are connected with a municipal water supply pipeline network through a water inlet pipe (18), and the water outlet valves (88) are connected to a sewer through a water outlet pipe (19) penetrating through a water storage tank (9).
9. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as recited in claim 8, characterized in that: the connecting rod (87) comprises a cross rod, a vertical rod and an inclined rod, the vertical rod is arranged at the bottom of the upper end of the inclined rod, the middle of the cross rod is fixed at the upper end of the inclined rod, two ends of the cross rod are respectively movably connected with the first rotating rods (85), the bottom end of the vertical rod is movably connected with the second rotating rods (86), the lower end of the inclined rod forms a bevel, one section below the bevel is parallel to the vertical surface, and the end of the bevel is fixed on the floating ball (89).
10. The temperature-regulating and ice-snow melting sprinkling system based on the permeable pavement as recited in claim 8, characterized in that: a rectangular rubber plate (821) is hinged at the position of a valve port in the one-way valve (82), one side of the lower end of the rectangular rubber plate (821) is propped against the edge of the one-way valve (82) and can not rotate, the other side of the rectangular rubber plate can rotate freely, when the liquid level descends, a floating ball (89) drives a connecting rod (87), one end of a first connecting rotating rod (85) is lifted, a second rotating rod (86) is clamped, a second valve plug (84) connected with the second rotating rod cannot move, a drain valve (88) serves as one of supporting points when the connecting rod (87) rotates, the first rotating rod (85) rotates under the driving of the connecting rod (87) to gradually pull the first valve plug (83) outwards to open the valve, water flow can achieve the liquid supplementing effect through the one-way valve (82) and a water inlet valve (81), if the liquid is supplemented, air pressure is released by an accumulator (5), taking the air inlet valve (81) as an example, the air flow inlet valve can enter the water inlet valve (81) to blow the one-way valve (82) to blow the rectangular rubber plate (821) to one side which cannot rotate, when the liquid level rises, the floating ball (89) drives the connecting rod (87) to press down one end of the connecting rotating rod I (85), but at the moment, the rotating rod I (85) is blocked, the valve plug I (83) connected with the rotating rod I cannot move, the water inlet valve (81) serves as a rotating fulcrum of the connecting rod (87), meanwhile, the rotating rod II (86) rotates under the rotation of the connecting rod (87) to pull the valve plug II (84) upwards to gradually open the valve, water flow can enter the drain pipe (19) through the drain valve (88) to achieve the effect of draining, water is sprayed when the pressure storage device (5) releases the air pressure, the liquid level can drop, the liquid level height when drainage is needed cannot be achieved, the air pressure cannot leak from the drain valve (88), and the effects of self-liquid supplement and self-drainage are controlled through the above processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588862.7A CN114232553A (en) | 2021-12-23 | 2021-12-23 | Temperature-adjusting and ice and snow melting spraying system based on permeable pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111588862.7A CN114232553A (en) | 2021-12-23 | 2021-12-23 | Temperature-adjusting and ice and snow melting spraying system based on permeable pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114232553A true CN114232553A (en) | 2022-03-25 |
Family
ID=80762031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111588862.7A Withdrawn CN114232553A (en) | 2021-12-23 | 2021-12-23 | Temperature-adjusting and ice and snow melting spraying system based on permeable pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114232553A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941305A (en) * | 2022-06-14 | 2022-08-26 | 枣庄九一电子科技有限公司 | Anti-freezing device for highway pavement |
| CN115748534A (en) * | 2022-11-16 | 2023-03-07 | 江苏第二师范学院 | Landscape design garden road intelligence notice board |
-
2021
- 2021-12-23 CN CN202111588862.7A patent/CN114232553A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941305A (en) * | 2022-06-14 | 2022-08-26 | 枣庄九一电子科技有限公司 | Anti-freezing device for highway pavement |
| CN115748534A (en) * | 2022-11-16 | 2023-03-07 | 江苏第二师范学院 | Landscape design garden road intelligence notice board |
| CN115748534B (en) * | 2022-11-16 | 2023-07-04 | 江苏第二师范学院 | Landscape design garden road intelligent notice board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106522052B (en) | It is a kind of that there is the urban road structure for collecting rainwater and solar power generation function | |
| CN114232553A (en) | Temperature-adjusting and ice and snow melting spraying system based on permeable pavement | |
| CN209779370U (en) | Urban road rainwater is collected and is utilized and discharge system | |
| CN109267772B (en) | Ecological landscape corridor for intelligent three-dimensional rainwater recycling and workflow thereof | |
| CN105442442A (en) | Self-flowing rainwater collection and irrigation system for green belt under viaduct | |
| CN210395596U (en) | Ecological town road in sponge city | |
| CN106638917B (en) | Split type rainwater recycling, storing and adjusting system and construction method thereof | |
| CN111058343A (en) | Sponge city ecological pavement system permeates water | |
| CN215671381U (en) | Ecological parking stall based on sponge city theory | |
| CN205502183U (en) | Rain water collecting treatment system | |
| CN109183532B (en) | Depend on ecological utilization system of regulation of northern city rainwater of road | |
| CN110145014A (en) | A kind of ecological pavement shunting water guide function with municipal administration | |
| CN211897679U (en) | Novel sponge urban road system | |
| CN211547991U (en) | Rainwater drainage and utilization system capable of preventing urban road waterlogging | |
| CN211185087U (en) | Roof greening planting device with rainwater collection function | |
| CN202787383U (en) | Filling station rainwater comprehensive utilization system | |
| CN108755338B (en) | Can realize urban road that rainwater elasticity was collected and was discharged | |
| CN208266621U (en) | Sponge urban ecology pavement | |
| CN216428130U (en) | Road surface cleaning and moisturizing system capable of utilizing rainfall and sprinkling for cyclic utilization | |
| CN112458826B (en) | Sponge city is with permeable pavement rainfall flood regulation structure | |
| CN210827760U (en) | Ecological pavement with municipal administration reposition of redundant personnel water guide function | |
| CN205382409U (en) | Gravity flow rainwater of greenbelt is collected and irrigation system under overpass | |
| CN212405386U (en) | Device for collecting rainwater in sponge city and treating rainwater by utilizing energy waves | |
| CN107675773A (en) | Sewerage system | |
| CN110670443A (en) | Permeable pavement wetting system, rainwater collection and drainage method and pavement wetting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220325 |