CN108396814B - Device for realizing atrium cooling of daylighting glass roof by roof rainwater - Google Patents
Device for realizing atrium cooling of daylighting glass roof by roof rainwater Download PDFInfo
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- CN108396814B CN108396814B CN201810413672.3A CN201810413672A CN108396814B CN 108396814 B CN108396814 B CN 108396814B CN 201810413672 A CN201810413672 A CN 201810413672A CN 108396814 B CN108396814 B CN 108396814B
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- 239000011521 glass Substances 0.000 title claims abstract description 80
- 238000001816 cooling Methods 0.000 title claims abstract description 38
- 210000002837 heart atrium Anatomy 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 231
- 238000005507 spraying Methods 0.000 claims abstract description 36
- 239000010865 sewage Substances 0.000 claims abstract description 14
- 239000008213 purified water Substances 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 26
- 238000011144 upstream manufacturing Methods 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 10
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 239000011259 mixed solution Substances 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/02—Methods or installations for obtaining or collecting drinking water or tap water from rain-water
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/08—Down pipes; Special clamping means therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention relates to the technical field of rainwater recycling device structures, in particular to a device for realizing the atrium cooling of a daylighting glass roof by utilizing roof rainwater. The rain water collecting device comprises a rain water bucket which is positioned at the lower end of an inclined roof and used for collecting rain water falling onto the roof and the daylighting glass, wherein an outlet end of the rain water bucket is connected with a intercepting well; the inlet end of the intercepting well is communicated with the outlet end of the rainwater hopper through a rainwater pipe, and the outlet end of the intercepting well is provided with a drainage device for draining initial rainwater or circulating water to a municipal drainage pipeline; the flow discarding device comprises a purified water outlet end and a sewage outlet end communicated with the municipal drainage pipeline; the water purifying outlet end of the flow discarding device is provided with a spraying device for spraying water to the daylighting glass roof to cool the daylighting glass roof. The invention has simple structure, convenient installation and operation, utilizes roof rainwater to cool the daylighting glass, saves water resources, reduces cooling cost and has extremely high popularization value.
Description
Technical Field
The invention relates to the technical field of water spraying cooling structures, in particular to a device for realizing the cooling of the atrium of a daylighting glass roof by utilizing roof rainwater.
Background
In order to create a spacious and bright indoor space environment, a plurality of building atrium roofs adopt a daylighting glass roof structure, and the daylighting glass roof is difficult to bear in heat in the atrium under the daylighting glass roof in every high-temperature season, according to partial engineering actual measurement: the temperature of the atrium is generally in the range of 40-50 ℃, which seriously affects the quality of the internal environment of the building. At present, sun-shading and cooling of the atrium under the roof of domestic daylighting glass mostly adopts modes of sticking a solar film or a coating on the glass, arranging sun-shading cloth outside, spraying and cooling and the like, and although the facilities have better heat-insulating and cooling effects in high-temperature seasons, the solar film or the coating can keep outdoor warm sunlight outdoors in cold seasons, thereby negatively affecting energy conservation of buildings; the external sun-shading cloth needs to be provided with an automatic sun-shading special device, if the external sun-shading cloth is arranged on an inclined or shaped special roof, the technical requirement is high, the building attractiveness can be directly influenced, the spacious and bright building effect of an atrium under the lighting glass roof can be damaged, and the maintenance of facilities is a problem which cannot be ignored; the spraying cooling also needs a special water supply device, has higher requirements on water pressure, water quality and a pipeline system, and the sprayed water cannot be recovered, so that a set of cooling devices which do not destroy the building effect, and have the advantages of cooling, energy saving, water saving, beautifying the atrium environment and being convenient to use and manage are necessary to design.
Disclosure of Invention
The invention aims to solve the defects of complex structure, attractive appearance influence, water resource waste and winter sunlight shielding existing in the conventional daylighting glass roof atrium cooling mode in the background art, and provides a device for realizing daylighting glass roof atrium cooling by using roof rainwater.
The technical scheme of the invention is as follows: the utility model provides an utilize roofing rainwater to realize daylighting glass roof atrium cooling's device, is used for collecting the rainwater fill that falls to roofing and daylighting glass roof, its characterized in that including being located the slope roofing lower extreme: the outlet end of the rainwater hopper is connected with a intercepting well; the inlet end of the intercepting well is communicated with the outlet end of the rainwater hopper through a rainwater pipe, and the outlet end of the intercepting well is provided with a drainage device for draining initial rainwater or circulating water to a municipal drainage pipeline; the flow discarding device comprises a purified water outlet end and a sewage outlet end communicated with the municipal drainage pipeline; the water purifying outlet end of the flow discarding device is provided with a spraying device for spraying water to the daylighting glass roof to cool the daylighting glass roof.
An overflow weir is further arranged in the intercepting well; the overflow weir divides the intercepting well into an upstream well body and a downstream well body; the inlet end of the upstream well body is communicated with the rainwater hopper through a rainwater pipe, and the outlet end of the upstream well body is communicated with the drainage device through a first intercepting pipe; the downstream well body is communicated with the upstream well body through the overflow weir crest, and the outlet end of the downstream well body is communicated with the municipal rainwater pipeline.
The flow discarding device further comprises a flow discarding pool; the inlet end of the abandoning pond is communicated with the upstream well body through a first intercepting pipe, a sewage pump which discharges to the municipal drainage pipeline is arranged in the abandoning pond, and the outlet end of the abandoning pond is communicated with the spraying device through a second intercepting pipe.
Further said spraying means comprises a reservoir; the inlet end of the water storage tank is communicated with the flow discarding tank through a second intercepting pipe, and the outlet end of the water storage tank is provided with a circulating water pump; the inlet end of the circulating water pump is communicated with the water storage tank, and the outlet end of the circulating water pump is communicated with a spray pipe for spraying water to the daylighting glass roof through a circulating water supply pipe.
The circulating water supply pipe is further provided with a suction device for sucking indoor cold air and mixing the cold air with rainwater or circulating water in the circulating water supply pipe; the suction device comprises a water ejector; the water injector is a venturi tube and comprises a circulating water inlet end communicated with a circulating water supply pipe, a gas inlet end communicated with indoor cold air and a gas-water mixed liquid outlet end communicated with the circulating water supply pipe; the gas-water mixed liquid outlet end is positioned at the downstream of the circulating water inlet end along the flowing direction of the circulating water supply pipe; the gas inlet end is positioned between the circulating water inlet end and the gas-water mixed liquid outlet end.
And an adjusting control valve is arranged in parallel between the circulating water supply pipe between the gas-water mixed liquid outlet end and the circulating water inlet end.
The water spraying pipe is a porous pipe or a nozzle which uniformly sprays the gas-water mixture formed after the water sprayer to the top surface of the daylighting glass roof.
A filter is arranged between the inlet end of the circulating water pump and the water storage tank.
The device further comprises a controller for controlling the operation of the circulating water pump; the controller is electrically connected with the first liquid level meter in the upstream well body, the temperature sensor on the top and bottom surfaces of the daylighting glass and the circulating water pump.
The further abandoned flow tank is internally provided with an on-line SS instrument for detecting the concentration of the pollutants in the rainwater in the tank and a second liquid level meter for observing the liquid level in the tank.
The invention has the advantages that:
the invention adopts the gas-water mixed solution to spray on the top surface of the daylighting glass to form a water film with the thickness not less than 5mm, and as the water film contains a large number of flowing micro-bubbles, the multi-curved surface formed by the micro-bubbles can reflect most sunlight, and simultaneously, the water body in the water film absorbs most sunlight and the heat of the daylighting glass top, thereby comprehensively and effectively blocking the radiant heat generated by direct sunlight to the atrium and reducing the conduction heat of the daylighting glass top, thereby effectively reducing the environmental temperature of the atrium, and reducing the temperature of the atrium from 40-50 ℃ to below 33 ℃ under the condition of no air conditioner; in addition, as a solar film or a coating is not required to be adhered on the top of the daylighting glass, the sunlight warms the atrium in a low-temperature season, so that energy conservation is realized.
The water is saved, the roof rainwater is directly collected to replace the traditional water source for recycling, and the heat insulation and cooling effects of the lighting glass roof are realized; compared with water spraying, the invention adopts the water ejector to suck the low-cost air into the water to form the air-water mixed solution to be sprayed on the top surface of the daylighting glass, can generate a water film with the same thickness but better heat insulation and cooling effects, and correspondingly reduces the water spraying amount.
Saving materials, namely directly sucking indoor cold air by using a water ejector, mixing the indoor cold air with the circulating water body, and directly cooling the circulating water body; meanwhile, along with the flow of the air-water mixed solution on the top surface of the daylighting glass, the air bubbles in the water overflow from the water to the atmosphere after absorbing the sunlight radiant heat and the heat on the top surface of the daylighting glass, so that the heat in the water is directly taken away, the constant temperature of the circulating water body is ensured, and a heat exchange device or a cooling device is not required to be additionally arranged, so that equipment and materials are saved.
The maintenance management is convenient, namely the automatic start and stop control of the system can be realized by utilizing a lighting glass top temperature sensor to sense the temperature of the atrium; meanwhile, the rainfall process is perceived according to the change of the liquid level of the rainfall level meter in the intercepting well, the automatic start-stop control of the system can be realized, and the maintenance and management are convenient.
The system has simple structure, no need of additionally arranging special cooling equipment, low requirements on equipment, materials and installation, and low investment.
Drawings
Fig. 1: the structure of the invention is schematically shown;
wherein: 1-roofing; 2-daylighting glass roof; 3-a rain bucket; 4, a discarding pool; 5-a first interception tube; 6-municipal rainwater pipeline; 7-a sewage pump; 8-a second cutoff tube; 9-a intercepting well; 10-overflow weir; 11-a downstream well; 12-an upstream well; 13-a rainwater pipe; 14-a water storage pool; 15-a circulating water pump; 16-a circulation water supply pipe; 17-a water spraying pipe; 18-a water injector; 19-regulating the control valve; 20-a filter; 21-a controller; 22-a first level gauge; 23-a temperature sensor; 24-on-line SS meter; 25-a second level gauge; 26-municipal drainage pipeline; 27-an air suction pipe; 28-check valve.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1, a device for realizing cooling of an atrium under a daylighting glass roof by using roof rainwater, where the cooling device of the embodiment is used for setting a daylighting glass roof 2 on a roof 1, the atrium is below the daylighting glass roof 2, and in a high-temperature season, the device is used for collecting rainwater falling onto the roof 1 and the daylighting glass roof 2, spraying the rainwater onto the top surface of the daylighting glass roof 2, and performing heat insulation and cooling on the atrium below the daylighting glass roof 2.
As shown in fig. 1, the device of the present embodiment includes a rain bucket 3 at the lower end of an inclined roof 1 for collecting rain water falling onto the roof 1 and a roof glass 2. During rainfall, rainwater falling onto the roof 1 and the daylighting glass roof 2 flows through the rainwater hopper 3, the rainwater pipe 13 and the upstream well body 12 in the intercepting well 9 in sequence under the action of gravity, then flows through the first intercepting pipe 5, the discarding pool 4 and the second intercepting pipe 8 in sequence under the action of gravity under the blocking of the overflow weir 10 in the intercepting well 9, and finally enters the water storage pool 14 for storage. In a high-temperature season, when sunlight penetrates through the daylighting glass roof 2 to directly penetrate the atrium, a circulating water pump 15 for absorbing water from a water storage tank 14 is started to supply water in a pressurized mode, then collected rainwater, namely circulating water, is uniformly sprayed onto the daylighting glass roof 2 through a circulating water pipe 16 and a water spraying pipe 17 to insulate against heat and cool, and then sprayed water flows from the daylighting glass roof 2 to flow through a roof 1, a rainwater hopper 3, a rainwater pipe 13, an upstream well body 12 in a intercepting well 9, a first intercepting pipe 5, a discarding pool 4 and a second intercepting pipe 8 in sequence under the action of gravity, finally returns to the water storage tank 14, so that the rainwater can be recycled, and the purposes of insulating against heat and cooling and saving water are achieved.
As shown in fig. 1, in the intercepting well 9, an overflow weir 10 is disposed in the intercepting well 9, the overflow weir 10 divides the intercepting well 9 into an upstream well body 12 and a downstream well body 11, the inlet end of the upstream well body 12 is communicated with the rainwater hopper 3 through a rainwater pipe 13, and the height of the overflow weir 10 is 300-500 mm higher than the top of the outlet end of the rainwater pipe 13. One outlet end of the upstream well body 12 is communicated with the flow discarding pool 4 through a first intercepting pipe 5, two outlet ends of the upstream well body are connected with a downstream well body 11 through an overflow weir 10, and the outlet end of the downstream well body 11 is directly communicated with the municipal rainwater pipeline 6, and the intercepting well 9 has the following functions: that is, rainwater discharged from the rainwater hopper 3 and the rainwater pipe 13 into the intercepting well 9 firstly enters the upstream well body 12, under the blocking of the overflow weir 10, the rainwater sequentially passes through the first intercepting pipe 5, the discarding pond 4 and the second intercepting pipe 8 and finally flows into the water outlet pond 14 to be stored, when the water storage pond 14 is full of rainwater, the water level in the upstream well body 12 in the intercepting well 9 can be raised, and when the water level exceeds the weir top height of the overflow weir 10, the rainwater can overflow the weir top of the overflow weir 10 to flow into the downstream well body 11 in the intercepting well 9, and flows out of the municipal rainwater pipeline 6.
In practice, the rainwater falling onto the roof 1 and the daylighting glass roof 2 includes severely polluted initial rainwater and later rainwater with higher cleanliness, and in addition, the circulating water sprayed on the daylighting glass roof 2 at ordinary times also generates severely polluted circulating water at the initial stage of each use, and in order to avoid the pollution of the daylighting glass roof by the initial rainwater or the circulating water, or the blockage of a pipeline or the damage of subsequent devices, the embodiment is provided with a drainage pool. As shown in fig. 1, a sewage pump 7 for discharging sewage to the municipal drainage pipe 26 is provided in the drainage tank 4, and the initial rainwater or circulating water which has entered the drainage tank 4 is discharged to the municipal drainage pipe 26 by the sewage pump 7.
In this embodiment, an on-line SS meter 24 for detecting the concentration of the circulating water contaminants in the waste water tank and a second level meter 25 for observing the liquid level in the tank are provided in the waste water tank 4. The pollution degree of the water body in the pool is monitored in real time, the water body emission in the pool is controlled, and the water body is prevented from polluting the daylighting glass roof or blocking the pipeline or damaging subsequent devices. When the on-line SS meter 24 displays that the SS concentration is more than the water scene index of the reclaimed water quality control index of the landscape environment water, namely the SS concentration is more than 10 (mg/l), the sewage pump 7 is started for sewage discharge, and the roof initial rainwater or circulating water with more pollutants collected therein is discharged out of the system so as to keep the clean of the circulating water system.
As shown in fig. 1, the spraying device of the present embodiment includes a water storage tank 14, an inlet end of the water storage tank 14 is communicated with the waste water tank 4 through a second intercepting pipe 8, an outlet end of the water storage tank 14 is provided with a circulating water pump 15, and a filter 20 is arranged between the inlet end of the circulating water pump 15 and the water storage tank 14.
The inlet end of the circulating water pump 15 is communicated with the water storage tank 14, and the outlet end of the circulating water pump 15 is communicated with a spray pipe 17 spraying water to the daylighting glass roof 2 through a circulating water supply pipe 16. The circulating water pump 15 pumps the water in the water storage tank 14 into the water spraying pipe 17, and the water spraying pipe 17 sprays the top surface of the daylighting glass roof 2 to insulate heat and cool the lower atrium. The water spraying pipe 17 is a porous pipe or nozzle which uniformly sprays the air-water mixture formed by the water injector 18 on the top surface of the daylighting glass roof 2.
The spraying pipe 17 in this embodiment sprays air-water mixed liquid, as shown in fig. 1, a suction device for sucking indoor cold air and mixing the cold air with rainwater in the circulating water pipe 16 is arranged on the circulating water pipe 16, the suction device comprises a water sprayer 18, the water sprayer 18 is a venturi pipe, a throat pipe of the water sprayer 18 is connected with an air suction pipe 27 for sucking indoor cold air, a check valve 28 for blocking water flow from spraying to the air is further arranged on the air suction pipe 27, a water flow inlet end of the water sprayer 18 is connected with an outlet end of the circulating water pump 15 through the circulating water pipe 16, and an outlet end of the water sprayer 18 is connected with the daylighting glass roof spraying pipe 17 through the circulating water pipe 16, and the fluid is air-water mixed liquid after water and air are mixed. The water inflow and outflow ends of the water jet 18 are provided with an adjusting control valve 19 in parallel for adjusting the air inflow of the water jet 18, and the air-water ratio is not lower than 1:2.
After entering the water injector 18, the cold air is mixed with rainwater in the circulating water supply pipe 16 to form a gas-water mixed solution, and after being sprayed by the water spray pipe 17, a water film with heat insulation and cooling effects is formed on the surface of the daylighting glass roof 2, wherein the thickness of the water film is not less than 5mm, and as a large number of flowing micro bubbles are contained in the water film, a plurality of curved surfaces formed by the micro bubbles can reflect most sunlight, and meanwhile, most sunlight and heat of the daylighting glass roof 2 are absorbed by water in the water film, radiant heat generated by direct sunlight atrium is comprehensively and effectively prevented, and heat conduction of the daylighting glass roof 2 is reduced, so that the atrium temperature is effectively reduced, and the water spray amount is effectively reduced due to the application of the gas-water mixed solution. And along with the flow of the gas-water mixed solution on the surface of the daylighting glass roof 2, the water bubbles which absorb the solar radiation heat and the heat conducted by the daylighting glass roof 2 overflow from the water to enter the atmosphere, the heat in the water is directly taken away, the cooling of the circulating water body can be effectively realized without putting other cooling equipment into operation, and the constant temperature of the circulating water body is ensured.
In order to realize automatic control of the whole device, the embodiment is provided with a controller 21 for controlling the operation of the circulating water pump 15, and the controller 21 is electrically connected with a first liquid level meter 22 which displays the rainfall process in the upstream well body 11 in the intercepting well 9, a temperature sensor 23 on the bottom surface of the daylighting glass roof 2 and the circulating water pump 15.
The control principle is as follows:
1. rainwater collection control: when rainfall starts, rainwater falling from the daylighting glass roof 2 and the roof 1 flows through the rainwater hopper 3 and the rainwater pipe 13 in sequence under the action of gravity to enter the upstream well body 12, and due to the blocking of the overflow weir 10 in the intercepting well 9, the rainwater flows through the flow discarding pool 4 through the first intercepting pipe 5 (the initial rainwater polluted is collected and intercepted at the moment), and then flows into the water storage pool 14 under the action of gravity to be stored for water spraying and cooling on the top surface of the daylighting glass roof 2 for recycling; when the rainwater fills the water storage tank 14, the excessive rainwater overflows the overflow weir 10 in the intercepting well 9 and is discharged into the municipal rainwater pipeline 6.
2. Initial rainwater or circulating water reject flow control: when the on-line SS meter 24 in the waste flow pool 4 displays that the SS concentration of the water body is larger than the SS concentration >10 (mg/l) in the water scene index of the reclaimed water quality control index of the landscape environment water, the sewage pump 7 is started for sewage discharge, and when the liquid level of the second liquid level meter 25 reaches the lowest liquid level, the sewage pump 7 is closed.
3. And (3) water spraying and cooling control:
a. when the temperature of the temperature sensor 23 at the bottom surface of the daylighting glass roof 2 is higher than the set starting temperature, and meanwhile, when the liquid level of the first liquid level meter 22 in the intercepting well 9 is lower than or equal to the height of the weir top of the overflow weir 10, the weather is in a high-temperature state and no rainfall exists, so that the circulating water pump 15 for absorbing water in the water storage tank 14 is automatically started to supply water in a pressurized mode, then indoor cold air (the air-conditioning area or the underground cooling space can be formed by sucking the indoor cold air through the water injector 18 arranged on the circulating water supply pipe 16) to form a gas-water mixed solution, at the moment, the temperature of the water body is further reduced due to the introduction of the cold air, then, the gas-water mixed solution is uniformly sprayed onto the top surface of the daylighting glass roof 2 through the water spraying pipe 17, a water film with the thickness of not less than 5mm is formed on the top surface of the daylighting glass roof 2, and a plurality of curved surfaces formed by the micro-bubbles can reflect most sunlight, and meanwhile, the water body in the water film absorbs most sunlight and the heat of the direct sunlight and the daylighting glass roof 2 can be completely and effectively blocked, so that the heat generated by the daylighting roof is completely and the heat-conducting heat of the daylighting glass roof 2 is completely and effectively reduced, and the daylighting environment is effectively reduced.
Then, water flows through the building roof 1, the rainwater hopper 3, the rainwater pipe 13 and the upstream well body 12 from the top surface of the daylighting glass roof 2 in sequence, is blocked by the overflow weir 10, and sequentially passes through the first intercepting pipe 5, the discarding pool 4, the second intercepting pipe 8 and the water storage pool 14, and is supplied with water from pressurization through the circulating water pump 15, so that the recycling is realized.
b. When the temperature of the temperature sensor 23 is higher than the set starting temperature and the liquid level of the first liquid level meter 22 used for displaying the rainfall process in the intercepting well 9 is higher than the top height of the overflow weir 10, the weather is in a high-temperature state at the moment, but rainfall is in progress (the water storage tank 14 is full of rainfall to form overflow), the circulating water pump 15 is automatically turned off by the controller 21, and the system stops spraying water.
c. When the temperature of the temperature sensor 23 is lower than the set starting temperature, the circulating water pump 15 is automatically turned off, and the system stops spraying water.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an utilize roofing rainwater to realize daylighting glass roof atrium cooling's device, is used for collecting rainwater fill (3) that falls to roofing (1) and daylighting glass roof (2) including being located slope roofing (1) lower extreme, its characterized in that: the outlet end of the rainwater hopper (3) is connected with a intercepting well (9); the inlet end of the intercepting well (9) is communicated with the outlet end of the rainwater hopper (3) through a rainwater pipe (13), and the outlet end of the intercepting well (9) is provided with a drainage device for draining initial rainwater or circulating water to a municipal drainage pipeline (26); the flow discarding device comprises a purified water outlet end and a sewage outlet end communicated with the municipal drainage pipeline (26); the water purifying outlet end of the flow discarding device is provided with a spraying device for spraying water to the daylighting glass roof (2) to cool the daylighting glass roof;
the flow discarding device comprises a flow discarding pool (4);
the spraying device comprises a water storage tank (14); the inlet end of the water storage tank (14) is communicated with the flow discarding tank (4) through a second intercepting pipe (8), and the outlet end of the water storage tank (14) is provided with a circulating water pump (15); the inlet end of the circulating water pump (15) is communicated with the water storage tank (14), and the outlet end of the circulating water pump (15) is communicated with a water spraying pipe (17) for spraying water to the daylighting glass roof (2) through a circulating water supply pipe (16);
the circulating water supply pipe (16) is provided with a suction device for sucking indoor cold air and mixing the cold air with rainwater or circulating water in the circulating water supply pipe (16); the suction device comprises a water ejector (18); the water injector (18) is a venturi tube and comprises a circulating water inlet end communicated with a circulating water supply pipe (16), a gas inlet end communicated with indoor cold air and a gas-water mixed liquid outlet end communicated with the circulating water supply pipe (16); the gas-water mixed liquid outlet end is positioned at the downstream of the circulating water inlet end along the flowing direction of the circulating water supply pipe (16); the gas inlet end is positioned between the circulating water inlet end and the gas-water mixed liquid outlet end.
2. A device for realizing atrium cooling of a daylighting glass roof by using roof rainwater as claimed in claim 1, wherein: an overflow weir (10) is arranged in the intercepting well (9); the overflow weir (10) divides the intercepting well (9) into an upstream well body (12) and a downstream well body (11); the inlet end of the upstream well body (12) is communicated with the rainwater hopper (3) through a rainwater pipe (13), and the outlet end of the upstream well body is communicated with the drainage device through a first intercepting pipe (5); the downstream well body (11) is communicated with the upstream well body (12) through the weir top of the overflow weir (10), and the outlet end of the downstream well body (11) is communicated with the municipal rainwater pipeline (6).
3. A device for realizing atrium cooling of a daylighting glass roof by using roof rainwater as claimed in claim 2, wherein: the inlet end of the abandoning pool (4) is communicated with the upstream well body (12) through a first intercepting pipe (5), a sewage pump (7) for discharging to a municipal drainage pipeline (26) is arranged in the abandoning pool (4), and the outlet end of the abandoning pool (4) is communicated with a spraying device through a second intercepting pipe (8).
4. A device for realizing atrium cooling of a daylighting glass roof by using roof rainwater as claimed in claim 1, wherein: an adjusting control valve (19) is arranged in parallel between the circulating water supply pipe (16) between the gas-water mixed liquid outlet end and the circulating water inlet end.
5. A device for realizing atrium cooling of a daylighting glass roof by using roof rainwater as claimed in claim 1, wherein: the water spraying pipe (17) is a porous pipe or a nozzle which uniformly sprays the gas-water mixture formed by the water sprayer (18) on the top surface of the daylighting glass roof (2).
6. A device for realizing atrium cooling of a daylighting glass roof by using roof rainwater as claimed in claim 1, wherein: a filter (20) is arranged between the inlet end of the circulating water pump (15) and the water storage tank (14).
7. A device for realizing atrium cooling of a daylighting glass roof by using roof rainwater as claimed in claim 1, wherein: the device also comprises a controller (21) for controlling the operation of the circulating water pump (15); the controller (21) is electrically connected with a first liquid level meter (22) in the upstream well body (12), a temperature sensor (23) on the bottom surface of the daylighting glass roof (2) and the circulating water pump (15).
8. A device for realizing atrium cooling of a daylighting glass roof by using roof rainwater as claimed in claim 1, wherein: an online SS instrument (24) for detecting the concentration of pollutants in the rainwater in the pool and a second liquid level meter (25) for observing the liquid level in the pool are arranged in the abandoned flow pool (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810413672.3A CN108396814B (en) | 2018-05-03 | 2018-05-03 | Device for realizing atrium cooling of daylighting glass roof by roof rainwater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810413672.3A CN108396814B (en) | 2018-05-03 | 2018-05-03 | Device for realizing atrium cooling of daylighting glass roof by roof rainwater |
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| Publication Number | Publication Date |
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| CN108396814A CN108396814A (en) | 2018-08-14 |
| CN108396814B true CN108396814B (en) | 2023-10-31 |
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| CN201810413672.3A Active CN108396814B (en) | 2018-05-03 | 2018-05-03 | Device for realizing atrium cooling of daylighting glass roof by roof rainwater |
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| CN109339186A (en) * | 2018-08-28 | 2019-02-15 | 武汉圣禹排水系统有限公司 | Road rain water pneumatically shunts processing system and its control method |
| CN114482687B (en) * | 2021-12-31 | 2024-05-10 | 上海艾斯贝斯建筑规划设计有限公司 | Green home ecological complex of community |
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| CN2918601Y (en) * | 2006-06-16 | 2007-07-04 | 华南理工大学 | Solar energy activated trickle roofing cooling system |
| JP2008248471A (en) * | 2007-03-08 | 2008-10-16 | Sonobe Setsubi Kogyo:Kk | Rainwater utilizing system |
| CN205636882U (en) * | 2016-06-13 | 2016-10-12 | 马鞍山聚力科技有限公司 | Rainwater roofing heat sink |
| CN106069362A (en) * | 2016-06-29 | 2016-11-09 | 兴化市创农温室设备有限公司 | A kind of view glasshouse booth |
| CN207006420U (en) * | 2017-05-10 | 2018-02-13 | 东南大学 | Energy Efficiency of Rural Residential Building system based on rainwater-collecting with comprehensive utilization |
| CN208266976U (en) * | 2018-05-03 | 2018-12-21 | 东风设计研究院有限公司 | A kind of device for realizing the cooling of daylighting glass roof Zhongting using rain water on roof |
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| CN2918601Y (en) * | 2006-06-16 | 2007-07-04 | 华南理工大学 | Solar energy activated trickle roofing cooling system |
| JP2008248471A (en) * | 2007-03-08 | 2008-10-16 | Sonobe Setsubi Kogyo:Kk | Rainwater utilizing system |
| CN205636882U (en) * | 2016-06-13 | 2016-10-12 | 马鞍山聚力科技有限公司 | Rainwater roofing heat sink |
| CN106069362A (en) * | 2016-06-29 | 2016-11-09 | 兴化市创农温室设备有限公司 | A kind of view glasshouse booth |
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| CN108396814A (en) | 2018-08-14 |
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