CN111779199A - Rainwater collection and utilization system for building surface temperature control and control method thereof - Google Patents

Rainwater collection and utilization system for building surface temperature control and control method thereof Download PDF

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Publication number
CN111779199A
CN111779199A CN202010705464.8A CN202010705464A CN111779199A CN 111779199 A CN111779199 A CN 111779199A CN 202010705464 A CN202010705464 A CN 202010705464A CN 111779199 A CN111779199 A CN 111779199A
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CN
China
Prior art keywords
rainwater
water
evaporation
control processor
pump
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Withdrawn
Application number
CN202010705464.8A
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Chinese (zh)
Inventor
范丽
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Taicang Biaomi Sponge City Technology Co ltd
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Taicang Biaomi Sponge City Technology Co ltd
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Application filed by Taicang Biaomi Sponge City Technology Co ltd filed Critical Taicang Biaomi Sponge City Technology Co ltd
Priority to CN202010705464.8A priority Critical patent/CN111779199A/en
Publication of CN111779199A publication Critical patent/CN111779199A/en
Withdrawn legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
    • E04D13/04Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/08Down pipes; Special clamping means therefor
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/02Methods or installations for obtaining or collecting drinking water or tap water from rain-water
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/22Adaptations of pumping plants for lifting sewage
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78Heat insulating elements
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00Control of temperature
    • G05D23/19Control of temperature characterised by the use of electric means
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/108Rainwater harvesting

Abstract

A rainwater collecting and utilizing system for building surface temperature control and a control method thereof comprise the following steps: a rainwater pipe, a rainwater collecting box and a cooling layer; the rainwater pipe is arranged on the surface of the building; the rainwater collecting box stores rainwater collected by the rainwater pipe; the cooling layer comprises a heat preservation layer and a capillary tube; the rainwater collecting box is provided with a circulating water outlet pipe and a circulating water inlet pipe; the circulating water outlet pipe outputs the collected water in the rainwater collecting tank to the capillary; the circulating water inlet pipe receives the circulating collected water output by the capillary; the cooling layer also comprises an evaporation tube, and one end of the evaporation tube is connected and communicated with the capillary tube; the evaporation pipe is provided with an evaporation valve, and the evaporation valve is connected with the control processor; and a temperature sensor is arranged in the heat preservation layer and used for monitoring the temperature of the heat preservation layer, and the temperature sensor outputs a real-time temperature value to the control processor.

Description

Rainwater collection and utilization system for building surface temperature control and control method thereof
Technical Field
The invention relates to the field of rainwater collection and utilization, in particular to a rainwater collection and utilization system for building surface temperature control and a control method thereof.
Background
China is seriously short of water resources, the average occupied amount of people is less than one third of the average world level, the average occupied amount of people is less than one eighth of the average world people in northern areas, and an effective rainwater collection system is the requirement of sustainable development of national economic construction. Most of the existing rainwater collection methods adopt a ground surface collection and diversion ditch mode, so that the collected rainwater has more impurities and poor water quality and can be used after long-time sedimentation and other treatments.
The existing rainwater collecting and utilizing devices adopt a simple method of collecting, purifying and recycling, but cannot well utilize rainwater in a building area.
The rainwater is a good recyclable water resource, the collected rainwater can be used for temperature control of the building, and the temperature of the surface of the building is controlled through the pipeline on the surface of the building by utilizing the characteristic of large specific heat capacity of water.
Disclosure of Invention
The purpose of the invention is as follows:
the invention provides a rainwater collecting and utilizing system for controlling temperature of building surfaces and a control method thereof, aiming at the technical problems mentioned in the background technology.
The technical scheme is as follows:
a rainwater collection and utilization system for temperature control of a building surface, comprising: a rainwater pipe, a rainwater collecting box and a cooling layer;
the rainwater pipe is arranged on the surface of the building, is used for collecting rainwater on the surface of the building, and is connected with the rainwater collecting box;
the rainwater collecting box is arranged underground and stores rainwater collected by the rainwater pipe;
the cooling layer is arranged on the surface of a building and comprises a heat preservation layer and capillary tubes;
the capillary tubes are uniformly distributed in the heat insulation layer, and the capillary tubes cover the interior of the cooling layer; the rainwater collecting box is provided with a circulating water outlet pipe and a circulating water inlet pipe, the circulating water outlet pipe is connected and communicated with the water inlet end of the capillary pipe, and the circulating water inlet pipe is connected and communicated with the water outlet end of the capillary pipe; the circulating water outlet pipe outputs the collected water in the rainwater collecting tank to the capillary; the circulating water inlet pipe receives the circulating collected water output by the capillary;
the cooling layer also comprises an evaporation tube, and one end of the evaporation tube is connected and communicated with the capillary tube; the other end of the evaporation tube is buried in the heat-insulating layer;
the evaporation pipe is provided with an evaporation valve, the evaporation valve is connected with a control processor, the control processor outputs an opening signal or a closing signal to the evaporation valve, and the evaporation valve is opened and closed according to the opening signal or the closing signal;
the temperature sensor is arranged in the heat insulation layer and used for monitoring the temperature of the heat insulation layer, and the temperature sensor outputs a real-time temperature value to the control processor;
and if the real-time temperature value reaches a preset high-temperature threshold value, starting the evaporation valve.
As a preferred mode of the present invention, an outlet pump is disposed on the circulating outlet pipe, the outlet pump is connected to a control processor, the control processor outputs an on signal or an off signal to the outlet pump, and the outlet pump is turned on and off according to the on signal or the off signal;
the water outlet pump is used for assisting the circulating water outlet pipe to output collected water.
As a preferred mode of the present invention, a water inlet pump is disposed on the circulating water inlet pipe, the water inlet pump is connected to a control processor, the control processor outputs an opening signal or a closing signal to the water inlet pump, and the water inlet pump is opened and closed according to the opening signal or the closing signal;
the water inlet pump is used for assisting collected water in circulating to enter the circulating water inlet pipe.
As a preferable mode of the present invention, a filtering device is disposed in the rainwater collection box, and the filtering device is used for filtering the collected water in the rainwater collection box;
the filtering device is connected with the control processor.
As a preferred mode of the present invention, a circulation pump is disposed in the middle section of the capillary tube, and the circulation pump is used for promoting circulation of the collected water in the capillary tube; the circulating pump is connected with the control processor, the control processor outputs an opening signal or a closing signal to the circulating pump, and the circulating pump is opened and closed according to the opening signal or the closing signal.
As a preferred mode of the present invention, a flow meter is further disposed in the middle section of the capillary tube, and the flow meter is configured to monitor a flow rate of the collected water in the capillary tube; the flow meter is connected with the control processor and outputs a real-time flow value to the control processor;
and if the real-time flow value is lower than the preset flow value threshold, the control processor outputs a starting signal to the circulating pump.
As a preferable mode of the present invention, a water seepage head is disposed at the front end of the evaporation tube, and a plurality of water seepage holes are disposed on the water seepage head, and the water seepage holes are used for releasing the collected water in the evaporation tube to the heat insulation layer.
A control method of a rainwater collection and utilization system for building surface temperature control comprises the following steps:
the temperature sensor monitors the temperature of the heat insulation layer and outputs a real-time temperature value to the control processor;
if the real-time temperature value reaches a preset high-temperature threshold value, controlling the processor to output an opening signal to the evaporation valve;
the evaporation valve receives an opening signal, and then the evaporation valve is opened;
releasing the collected water in the capillary tube to the evaporation tube;
the collected water in the evaporation pipe is released to the heat-insulating layer, and the collected water in the heat-insulating layer is evaporated to the environment to take away the heat on the surface of the building.
The method comprises the following steps:
if the control processor outputs an opening signal to the rising evaporation valve, the control processor also outputs an acceleration signal to the water output pump;
the water outlet pump increases the power, and the water outlet pump increases the speed of outputting collected water into the capillary tube.
The method comprises the following steps:
the flow meter monitors the flow rate of the collected water in the capillary tube, and outputs a real-time flow value to the control processor;
if the real-time flow value is lower than a preset flow value threshold value, controlling a processor to output a starting signal to the circulating pump;
the circulation pump is turned on to promote circulation of the collected water in the capillary tube.
The invention realizes the following beneficial effects:
the rainwater received by the surface of the building is collected by the corresponding rainwater collecting device and stored in the rainwater collecting box. And circulating the collected water in the rainwater collecting tank on the surface of the building through capillaries distributed on the surface of the building. The heat exchange is carried out between the surface of the building and the underground, and the effects of being warm in winter and cool in summer are achieved.
When the temperature of the surface of the building is too high, the evaporation tube releases the collected water in the capillary tube, so that the collected water is evaporated, and the heat on the surface of the building can be taken away by the evaporation of the water, thereby helping the temperature control inside the building.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a system block diagram of a rainwater collection and utilization system for temperature control of a building surface according to the present invention;
FIG. 2 is a schematic diagram of a cooling layer of the rainwater collection and utilization system for controlling temperature of the surface of a building according to the present invention;
FIG. 3 is a system block diagram of a second rainwater collection and utilization system for controlling temperature of building surfaces according to the present invention;
FIG. 4 is a schematic view of a second rainwater collection box of the rainwater collection and utilization system for controlling temperature of the surface of a building, provided by the invention;
FIG. 5 is a system block diagram of a third rainwater collection and utilization system for controlling temperature of a building surface according to the present invention;
FIG. 6 is a schematic diagram of a cooling layer of a third rainwater collection and utilization system for controlling temperature of a building surface according to the present invention;
fig. 7 is a schematic diagram of a water seepage head of a rainwater collection and utilization system for controlling temperature of a building surface according to the invention.
1. The system comprises a rainwater collecting box, 11 circulating water outlet pipes, 111 water outlet pumps, 12 circulating water inlet pipes, 121 water inlet pumps, 2 cooling layers, 21 heat insulation layers, 211 temperature sensors, 22 capillary tubes, 221 circulating pumps, 222 flow meters, 23 evaporation pipes, 231 water seepage heads, 232 water seepage holes, 24 evaporation valves and 3 control processors.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments; in the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure; one skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc.; in other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present disclosure.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale; the same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted; the structures shown in the drawings are illustrative only and do not necessarily include all of the elements; for example, some components may be split and some components may be combined to show one device.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The method disclosed by the embodiment corresponds to the system disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the system part for description.
Example one
Reference is made to fig. 1 as an example.
A rainwater collection and utilization system for temperature control of a building surface, comprising: rainwater pipe, rainwater collecting box 1, cooling layer 2.
The rainwater pipe is arranged on the surface of a building, and is used for collecting rainwater on the surface of the building, and the rainwater pipe is connected with the rainwater collecting box 1.
The rainwater pipe can be arranged at each position of the floor, and the rainwater pipe collects rainwater at each position. The rainwater pipe collects the collected rainwater to the rainwater collection tank 1.
The rainwater collecting box 1 is arranged underground, and the rainwater collecting box 1 stores rainwater collected by the rainwater pipe. The underground rainwater collection box 1 is convenient for controlling the temperature of collected water in the rainwater collection box 1, is also convenient for collecting water and exchanging heat with soil, and is beneficial to energy conservation.
The cooling layer 2 is arranged on the surface of a building, and the cooling layer 2 comprises a heat insulation layer 21 and a capillary tube 22.
The heat preservation layer 21 is used for preserving heat of the building, and the heat preservation layer 21 is used for reducing heat exchange between the building and the outside.
The capillary tube 22 is arranged at the contact position of the heat-insulating layer 21 and the building surface.
The capillary tubes 22 are uniformly distributed in the heat insulation layer 21, and the capillary tubes 22 cover the interior of the cooling layer 2. The capillaries 22 uniformly cover the building coverable surface.
The capillary 22 may be partially buried in the soil for heat exchange between the collected water in the capillary 22 and the soil.
The burying depth of the capillary tube 22 and the rainwater collection tank 1 may be set according to circumstances.
The rainwater collecting box 1 is provided with a circulating water outlet pipe 11 and a circulating water inlet pipe 12, the circulating water outlet pipe 11 is connected with and communicated with the water inlet end of the capillary tube 22, and the circulating water inlet pipe 12 is connected with and communicated with the water outlet end of the capillary tube 22. The circulating water outlet pipe 11 outputs the collected water in the rainwater collection tank 1 to the capillary 22. The circulating water inlet pipe 12 receives the collected water which is output by the capillary tube 22 and circulates back.
The circulating water outlet pipe 11 outputs the collected water in the rainwater collection tank 1 to the capillary 22, and the collected water circulated by the capillary 22 is output to the rainwater collection tank 1 through the circulating water inlet pipe 12.
There may be several groups of capillaries 22, and different groups of capillaries 22 may cover different areas. Different capillary tubes 22 can be connected with different circulating water outlet pipes 11 and circulating water inlet pipes 12.
The cooling layer 2 further comprises an evaporation tube 23, and one end of the evaporation tube 23 is connected and communicated with the capillary tube 22. The other end of the evaporation tube 23 is buried in the insulating layer 21.
One end of the evaporation tube 23 is connected with the capillary tube 22, and the other end of the evaporation tube 23 is directly buried in the heat-insulating layer 21. The evaporation tube 23 releases the collected water in the capillary tube 22 toward the insulating layer 21.
The evaporation pipe 23 is provided with an evaporation valve 24, the evaporation valve 24 is connected with the control processor 3, the control processor 3 outputs an opening signal or a closing signal to the evaporation valve 24, and the evaporation valve 24 is opened and closed according to the opening signal or the closing signal.
The evaporation valve 24 is used to control the release of the collected water by the evaporation tube 23.
Be provided with temperature sensor 211 in the heat preservation 21, temperature sensor 211 is used for monitoring the temperature of heat preservation 21, temperature sensor 211 to control processor 3 output real-time temperature value.
The temperature sensor 211 monitors the temperature of the surface of the building, so that the temperature of the surface of the building can be conveniently and timely acquired.
If the real-time temperature value reaches the preset high-temperature threshold value, the evaporation valve 24 is opened.
The preset high temperature threshold may be set to 35-40 degrees celsius, and in this application, if the real-time temperature reaches the preset high temperature threshold, the processor 3 is controlled to open the evaporation valve 24.
Wherein the collected water in the capillary tube 22 circulates daily in an effort to keep the temperature of the building surface relatively constant.
The temperature sensor 211 monitors the temperature of the insulating layer 21, and the temperature sensor 211 outputs a real-time temperature value to the control processor 3.
If the real-time temperature value reaches the preset high-temperature threshold value, the control processor 3 outputs an opening signal to the evaporation valve 24.
When the evaporation valve 24 receives the opening signal, the evaporation valve 24 is opened.
The collected water in the capillary tube 22 releases the collected water into the evaporation tube 23.
The collected water in the evaporation pipe 23 is released to the insulation layer 21, and the collected water in the insulation layer 21 evaporates to the environment to take away heat from the building surface.
Example two
Reference is made to fig. 2-3 for example.
The present embodiment is substantially the same as the above-mentioned embodiments, except that as a preferable mode of the present embodiment, a water outlet pump 111 is disposed on the water circulation outlet pipe 11, the water outlet pump 111 is connected to the control processor 3, the control processor 3 outputs an on signal or an off signal to the water outlet pump 111, and the water outlet pump 111 is turned on and off according to the on signal or the off signal.
The water outlet pump 111 is used for assisting the circulating water outlet pipe 11 to output collected water.
The water outlet pump 111 is convenient for the circulating water outlet pipe 11 to output collected water to the capillary tube 22, and if the evaporation valve 24 is opened and the evaporation pipe 23 releases the collected water to the heat insulation layer 21, the control processor 3 also outputs an acceleration signal to the water outlet pump 111 to increase the water outlet amount of the water outlet pump 111.
As a preferable mode of this embodiment, a water inlet pump 121 is disposed on the circulation water inlet pipe 12, the water inlet pump 121 is connected to the control processor 3, the control processor 3 outputs an opening signal or a closing signal to the water inlet pump 121, and the water inlet pump 121 is opened and closed according to the opening signal or the closing signal.
The water inlet pump 121 is used for assisting the collected water in circulation to enter the circulation water inlet pipe 12.
The water inlet pump 121 is used for outputting the collected water in the capillary tube 22 to the rainwater collection tank 1, so as to facilitate circulation of the collected water. Meanwhile, the water inlet pump 121 can also improve the circulation efficiency of collected water and accelerate heat exchange.
If the control processor 3 outputs an opening signal to the evaporation valve 24, the control processor 3 also outputs an acceleration signal to the water outlet pump 111.
The output of the water pump 111 is increased, and the speed of outputting the collected water to the capillary tube 22 is increased by the water pump 111.
EXAMPLE III
The present embodiment is substantially the same as the above-described embodiment except that, as a preferable mode of the present embodiment, a filtering device for filtering the collected water in the rainwater collection tank 1 is provided in the rainwater collection tank 1.
The filter device is connected with the control processor 3.
The filtering device may include steps of filtering, sterilizing, etc. which treat the collected water in the rainwater collection tank 1 to prevent impurities, organisms and viruses in the rainwater from being propagated in the rainwater collection tank 1.
Example four
Reference is made to fig. 5-6 for example.
The present embodiment is substantially the same as the above-mentioned embodiment, except that, as a preferable mode of the present embodiment, a circulation pump 221 is disposed in the middle section of the capillary tube 22, and the circulation pump 221 is used for promoting circulation of the collected water in the capillary tube 22. The circulation pump 221 is connected to the control processor 3, the control processor 3 outputs an on signal or an off signal to the circulation pump 221, and the circulation pump 221 is turned on and off according to the on signal or the off signal.
As a preferable mode of this embodiment, a flow meter 222 is further disposed in the middle section of the capillary tube 22, and the flow meter 222 is configured to monitor the flow rate of the collected water in the capillary tube 22. The flow meter 222 is connected to the control processor 3, and the flow meter 222 outputs a real-time flow rate value to the control processor 3.
If the real-time flow value is lower than the preset flow value threshold, the control processor 3 outputs a start signal to the circulation pump 221.
The flow meter 222 monitors the flow rate of the collected water in the capillary tube 22, and the flow meter 222 outputs a real-time flow value to the control processor 3.
If the real-time flow value is lower than the preset flow value threshold, the control processor 3 outputs an opening signal to the circulating pump 221.
The circulation pump 221 is turned on to promote circulation of the collected water in the capillary tube 22.
The preset flow value threshold can be set according to the heat dissipation requirement, and if the current flow value cannot meet the heat dissipation requirement, the circulating pump 221 is started to accelerate the circulation of the collected water in the capillary tube 22.
The circulation pump 221 can adjust different powers, and adjust the power of the circulation pump 221 according to the heat dissipation requirement, thereby adjusting the circulation speed of the collected water.
EXAMPLE five
Reference is made to fig. 7 as an example.
The present embodiment is substantially the same as the above-mentioned embodiments, except that, as a preferable mode of the present embodiment, a water seepage head 231 is arranged at the front end of the evaporation tube 23, a plurality of water seepage holes 232 are arranged on the water seepage head 231, and the water seepage holes 232 are used for releasing the collected water in the evaporation tube 23 to the heat insulation layer 21.
The water seepage head 231 is used for diffusing the collected water released in the evaporation pipe 23, and the collected water is released to the heat insulation layer 21 through the water seepage holes 232, so that the uniform release of the collected water is promoted.
EXAMPLE six
This embodiment is a method embodiment of the above embodiment, and the contents thereof are basically the same, and are not described herein again.
A control method of a rainwater collection and utilization system for building surface temperature control comprises the following steps:
the temperature sensor 211 monitors the temperature of the insulating layer 21, and the temperature sensor 211 outputs a real-time temperature value to the control processor 3.
If the real-time temperature value reaches the preset high-temperature threshold value, the control processor 3 outputs an opening signal to the evaporation valve 24.
When the evaporation valve 24 receives the opening signal, the evaporation valve 24 is opened.
The collected water in the capillary tube 22 releases the collected water into the evaporation tube 23.
The collected water in the evaporation pipe 23 is released to the insulation layer 21, and the collected water in the insulation layer 21 evaporates to the environment to take away heat from the building surface.
As a preferable mode of the present embodiment, the method includes the steps of:
if the control processor 3 outputs an opening signal to the evaporation valve 24, the control processor 3 also outputs an acceleration signal to the water outlet pump 111.
The output of the water pump 111 is increased, and the speed of outputting the collected water to the capillary tube 22 is increased by the water pump 111.
As a preferable mode of the present embodiment, the method includes the steps of:
the flow meter 222 monitors the flow rate of the collected water in the capillary tube 22, and the flow meter 222 outputs a real-time flow value to the control processor 3.
If the real-time flow value is lower than the preset flow value threshold, the control processor 3 outputs an opening signal to the circulating pump 221.
The circulation pump 221 is turned on to promote circulation of the collected water in the capillary tube 22.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. A rainwater collection and utilization system for building surface temperature control, comprising: a rainwater pipe, a rainwater collecting box (1) and a cooling layer (2);
the rainwater pipe is arranged on the surface of a building, is used for collecting rainwater on the surface of the building, and is connected with the rainwater collecting box (1);
the rainwater collecting box (1) is arranged underground, and the rainwater collecting box (1) stores rainwater collected by the rainwater pipe;
the cooling layer (2) is arranged on the surface of a building, and the cooling layer (2) comprises a heat insulation layer (21) and a capillary tube (22);
the capillary tubes (22) are uniformly distributed in the heat insulation layer (21), and the capillary tubes (22) cover the interior of the cooling layer (2); the rainwater collecting box (1) is provided with a circulating water outlet pipe (11) and a circulating water inlet pipe (12), the circulating water outlet pipe (11) is connected with and communicated with the water inlet end of the capillary tube (22), and the circulating water inlet pipe (12) is connected with and communicated with the water outlet end of the capillary tube (22); the circulating water outlet pipe (11) outputs the collected water in the rainwater collection box (1) to the capillary tube (22); the circulating water inlet pipe (12) receives the circulating collected water output by the capillary (22);
the cooling layer (2) further comprises an evaporation tube (23), and one end of the evaporation tube (23) is connected and communicated with the capillary tube (22); the other end of the evaporation tube (23) is embedded in the heat-insulating layer (21);
an evaporation valve (24) is arranged on the evaporation pipe (23), the evaporation valve (24) is connected with a control processor (3), the control processor (3) outputs an opening signal or a closing signal to the evaporation valve (24), and the evaporation valve (24) is opened and closed according to the opening signal or the closing signal;
a temperature sensor (211) is arranged in the heat insulation layer (21), the temperature sensor (211) is used for monitoring the temperature of the heat insulation layer (21), and the temperature sensor (211) outputs a real-time temperature value to the control processor (3);
and if the real-time temperature value reaches a preset high-temperature threshold value, the evaporation valve (24) is started.
2. The rainwater collecting and utilizing system for building surface temperature control according to claim 1, wherein a water outlet pump (111) is arranged on the circulating water outlet pipe (11), the water outlet pump (111) is connected with a control processor (3), the control processor (3) outputs an opening signal or a closing signal to the water outlet pump (111), and the water outlet pump (111) is opened and closed according to the opening signal or the closing signal;
the water outlet pump (111) is used for assisting the circulating water outlet pipe (11) to output collected water.
3. The rainwater collecting and utilizing system for building surface temperature control according to claim 2, wherein a water inlet pump (121) is arranged on the circulating water inlet pipe (12), the water inlet pump (121) is connected with the control processor (3), the control processor (3) outputs an opening signal or a closing signal to the water inlet pump (121), and the water inlet pump (121) is opened and closed according to the opening signal or the closing signal;
the water inlet pump (121) is used for assisting collected water which is circulated back to enter the circulating water inlet pipe (12).
4. The rainwater collecting and utilizing system for building surface temperature control according to claim 1, wherein a filtering device is arranged in the rainwater collecting tank (1), and the filtering device is used for filtering the collected water in the rainwater collecting tank (1);
the filtering device is connected with the control processor (3).
5. The rainwater collecting and utilizing system for building surface temperature control as claimed in claim 1, wherein a circulating pump (221) is arranged in the middle section of the capillary tube (22), and the circulating pump (221) is used for promoting circulation of the collected water in the capillary tube (22); the circulating pump (221) is connected with the control processor (3), the control processor (3) outputs an opening signal or a closing signal to the circulating pump (221), and the circulating pump (221) is opened and closed according to the opening signal or the closing signal.
6. The rainwater collecting and utilizing system for building surface temperature control as claimed in claim 5, wherein a flow meter (222) is further arranged in the middle section of the capillary tube (22), and the flow meter (222) is used for monitoring the flow rate of the collected water in the capillary tube (22); the flow meter (222) is connected with the control processor (3), and the flow meter (222) outputs a real-time flow value to the control processor (3);
and if the real-time flow value is lower than the preset flow value threshold value, the control processor (3) outputs a starting signal to the circulating pump (221).
7. The rainwater collecting and utilizing system for building surface temperature control as claimed in claim 1, wherein a water seepage head (231) is arranged at the front end of the evaporation pipe (23), a plurality of water seepage holes (232) are formed in the water seepage head (231), and the water seepage holes (232) are used for releasing the collected water in the evaporation pipe (23) to the heat insulation layer (21).
8. The method for controlling the rainwater collection and utilization system for controlling the temperature of the building surface according to any one of the claims 1 to 7, characterized by comprising the following steps:
the temperature sensor (211) monitors the temperature of the heat-insulating layer (21), and the temperature sensor (211) outputs a real-time temperature value to the control processor (3);
if the real-time temperature value reaches a preset high-temperature threshold value, the control processor (3) outputs an opening signal to the evaporation valve (24);
when the evaporation valve (24) receives the opening signal, the evaporation valve (24) is opened;
releasing the collected water in the capillary tube (22) to the evaporation tube (23);
the collected water in the evaporation pipe (23) is released to the heat-insulating layer (21), and the collected water in the heat-insulating layer (21) is evaporated to the environment to take away the heat on the surface of the building.
9. The method for controlling the rainwater collection and utilization system for controlling the temperature of the building surface according to claim 8, comprising the following steps:
if the control processor (3) outputs an opening signal to the evaporation rising valve (24), the control processor (3) also outputs an acceleration signal to the water outlet pump (111);
the output of the water outlet pump (111) is increased, and the speed of outputting collected water into the capillary tube (22) is increased by the water outlet pump (111).
10. The method for controlling the rainwater collection and utilization system for controlling the temperature of the building surface according to claim 8, comprising the following steps:
a flow meter (222) monitors the flow rate of the collected water in the capillary tube (22), the flow meter (222) outputting a real-time flow value to the control processor (3);
if the real-time flow value is lower than a preset flow value threshold value, controlling the processor (3) to output a starting signal to the circulating pump (221);
the circulation pump (221) is turned on to promote circulation of the collected water in the capillary tube (22).
CN202010705464.8A 2020-07-21 2020-07-21 Rainwater collection and utilization system for building surface temperature control and control method thereof Withdrawn CN111779199A (en)

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Application publication date: 20201016