CN113187164B

CN113187164B - Water conservation integration equipment is synthesized to public building cooling tower

Info

Publication number: CN113187164B
Application number: CN202110466121.5A
Authority: CN
Inventors: 王世豪; 王睿; 王耀堂; 李伟; 张楚; 王则慧; 李宏宇; 张燕平; 张子琛
Original assignee: China Architecture Design and Research Group Co Ltd
Current assignee: China Architecture Design and Research Group Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-06-21
Anticipated expiration: 2041-04-28
Also published as: CN113187164A

Abstract

The utility model relates to a comprehensive water-saving integrated device for a cooling tower of a public building, which comprises a flow abandoning area, a water collecting area and a device area which are integrated in a container, wherein the flow abandoning area is connected with a rainwater discharging pipe and a sewage discharging pipe, the rainwater discharging pipe is used for rainwater to flow in, and the sewage discharging pipe is used for sewage discharging in the early stage of rainfall; the water inlet of the water collecting area is communicated with the flow discarding area, the water collecting area can store rainwater flowing from the flow discarding area, and the water collecting area is connected with a water using point through an all-purpose water pipeline; the equipment area is positioned at one side of the flow abandoning area or the water collecting area. The integrated equipment provided by the invention integrates basic equipment such as rainwater collection and treatment in a container by using the concepts of modularization and integration, can be directly prefabricated and molded in a factory and installed in place at one time, is convenient to transport and construct, and realizes rainwater recycling.

Description

Water conservation integration equipment is synthesized to public building cooling tower

Technical Field

This patent belongs to rainwater recycle technical field, particularly relates to a water conservation integration equipment is synthesized to public building cooling tower.

Background

Water is the origin of life, an indispensable material basis for human survival and social development. However, with the increase of population and the continuous development of industry, on one hand, people have increasingly large demand for water, and on the other hand, the water resource is more and more damaged by human life and production activities, so that the situation of water resource shortage is increased continuously. China is a country with serious shortage of water resources, and the per-capitalized water resource is only 1/4 of the per-capitalized water resource. In order to deal with the situation, China encourages the reuse and the reuse of water from the eighties of the last century, through research and practice of nearly 30 years, China has already made a long-standing development on the reuse of water, and has accumulated abundant experience for the reuse of urban drainage in both technology and technology.

Rainwater has gained acceptance from countries throughout the world as a precious water resource. Compared with domestic sewage and industrial wastewater, the rainwater has the advantages of small pollution degree and simple treatment and recycling. Therefore, the collection, treatment and recycling of the waste water are increasingly paid more attention by governments at different levels in recent years. The collected and utilized rainwater can replace tap water in a certain range, so that the shortage of urban water resources is relieved, and the load of an urban sewage pipe network can be reduced to a certain extent. The roof rainwater pollution degree is light, the treatment cost is low, and the roof rainwater pollution degree is a main object for collection and utilization. The use of rainwater in a broad sense includes: direct utilization, indirect utilization and peak flow reduction. The indirect utilization is that various rainwater infiltration facilities are adopted to recharge rainwater underground so as to supplement underground water resources. The direct utilization is that the rainwater is collected, stored and purified and then used as supplementary water for domestic miscellaneous water, cooling circulation, fire fighting and the like. Reduce rainwater peak flow, reducible peak value rainwater is to the impact of municipal pipe network.

At present, the rainwater collecting pool adopted in engineering mainly takes a plastic module and a concrete module as main parts, the structure of equipment is complex, the size is large, the transportation is not facilitated, the on-site construction difficulty is large, the construction period is long, the rainwater collecting pool is oriented to a concentrated large and medium-sized community, the collecting range is wide, the rainwater collecting pool is only used for adjusting the peak flow of rainwater, and the rainwater collecting pool is less used for recycling. Therefore, in order to deal with the increasingly serious problems of insufficient water resources, frequent waterlogging, urban ecological safety and the like, the comprehensive water-saving integrated equipment serving the cooling tower of the public building is urgently needed to be provided.

Disclosure of Invention

In view of the above analysis, the invention aims to provide a comprehensive water-saving integrated device for a cooling tower of a public building, which is used for solving the problems that the existing rainwater collecting device mainly comprises a plastic module and a concrete module, the structure of the device is complex, the size is large, the transportation is not facilitated, the field construction difficulty is high, and the construction period is long.

The purpose of the invention is realized as follows:

in one aspect, a water-saving integrated device for a cooling tower of a public building is provided, which comprises:

the rainwater drainage pipe is used for allowing rainwater to flow in, and the sewage drainage pipe is used for draining sewage in the early stage of rainfall;

the water collecting area is communicated with the flow discarding area at a water inlet and is used for storing rainwater flowing from the flow discarding area, and the water collecting area is connected with a water using point through a miscellaneous water pipeline;

the equipment area is positioned at one side of the flow abandoning area or the water collecting area;

wherein, abandon the district of flowing, catchment district and equipment district integration and locate in the container and separate by the baffle.

Furthermore, a flow discarding lifting pump is arranged in the flow discarding area and discharges the sewage in the early stage of rainfall through a sewage discharge pipe.

Furthermore, the flow abandoning area, the water collecting area and the equipment area are arranged along the flow direction of the water flow, and the flow abandoning area and the equipment area are positioned on the same side of the water collecting area.

Furthermore, the flow abandoning area is provided with an overflow port, and the overflow port of the flow abandoning area is communicated with the water inlet of the water collecting area; rainwater flowing out from the overflow port of the drainage area naturally flows into the water collection area for storage after being filtered by the grating.

Furthermore, the equipment area is provided with a control box, and the control box is used for controlling the operation of the integrated equipment.

Furthermore, a first electronic liquid level meter and a service water lift pump are arranged in the water collecting area; the first electronic liquid level meter is used for monitoring the water level in the water collecting area; the service water lift pump is connected with a service water pipeline, and the service water pipeline passes through the equipment area to be connected with a water consumption point; a second electronic liquid level meter is arranged in the waste flow area and used for monitoring the water level in the waste flow area; the first electronic liquid level meter, the second electronic liquid level meter and the service water lift pump are all electrically connected with a control box of the equipment area.

Furthermore, an overflow pipe is arranged in the drainage area, and when the amount of rainwater flowing into the water collection area exceeds the volume of the water collection area, the excessive rainwater overflows into the small-market rainwater well through the overflow pipe.

Furthermore, the service water lift pump adopts a well pump and is arranged at the bottom of the water collecting area.

Furthermore, a backwashing pipeline is arranged in the water collecting area, the backwashing pipeline comprises a perforation flushing pipe and a backwashing water discharging pipe, and the perforation flushing pipe and the backwashing water discharging pipe are connected into the service water pipeline; the second electromagnetic valve is arranged on the perforation flushing pipe, and at least a part of water spray holes of the perforation flushing pipe face to the bottom wall of the water collecting area; the backwashing water draining pipe is provided with a fourth electromagnetic valve and is used for draining sewage after being flushed, and the backwashing water draining pipe penetrates through the equipment area and is connected with a municipal water draining pipeline; the utility water pipeline is provided with a third electromagnetic valve.

Furthermore, the water collecting area is connected with a small municipal water supply pipe, and the water quantity in the water collecting area is supplemented by municipal water supply.

Further, a small municipal water supply pipe penetrates through the equipment area, and a first electromagnetic valve and a flowmeter are arranged on the small municipal water supply pipe.

Furthermore, the miscellaneous water pipeline is also provided with a mechanical filter and a dosing device, the mechanical filter is used for filtering the effluent of the miscellaneous water lift pump, and the dosing device is used for adding a medicament into the effluent of the miscellaneous water lift pump.

Furthermore, the dosing equipment comprises a dosing pump and a dosing tank, and the dosing pump is used for adding the medicament in the dosing tank into the water outlet of the general-purpose water lift pump.

Furthermore, the miscellaneous water pipeline is also provided with an air pressure tank and a pressure sensor, the air pressure tank is used for maintaining a certain pressure of the pipe network, and the pressure sensor is used for monitoring the pressure in the pipe network.

Furthermore, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a flowmeter, a mechanical filter, a dosing pump, a dosing tank, an air pressure tank, a control box and a pressure sensor are all arranged in the equipment area; the top of the equipment area is provided with a manhole.

On the other hand, a roof rainwater recycling method is also provided, and the comprehensive water-saving integrated equipment of the public building cooling tower in any technical scheme is utilized; the roof rainwater recycling method comprises the following steps:

introducing roof rainwater into a flow abandoning area and discharging rainwater at the early stage of rainfall;

and the rainwater in the flow abandoning area enters the water collecting area, is treated by the water collecting area and is supplied to a water consumption point for use.

Further, the method comprises a flow abandoning area control process, and the start and stop of the flow abandoning lift pump are controlled according to the water level of the flow abandoning area.

Further, the method includes a municipal water replenishment control process;

the municipal water replenishing control process comprises the following steps: when the water level of the water collecting area reaches the lowest water level, starting a first electromagnetic valve, and supplementing water to the water collecting area by using municipal water supply; when the water level of the water collecting area reaches the municipal water replenishing and water stopping water level, the first electromagnetic valve is closed, and municipal water supply is stopped.

Further, the method comprises a process of controlling the reuse water pump;

the control process of the reuse pump for the miscellaneous water comprises the following steps: when the pressure of the pipe network is too low, the lift pump for the service water is directly started; when the pressure of the pipe network is normal, the lift pump for the general water is stopped; wherein, the lift pump for the miscellaneous water has two pumps, one pump is used and the other pump is standby, and one pump is started each time and started in turn;

when the water level of the water collecting area is the lowest water level, stopping starting the service water lift pump; when the water level reaches the municipal water replenishing and stopping water level, the service water lift pump is started again.

Further, the method comprises a backwash control process;

the backwashing control period is as follows: closing the electromagnetic valve of the miscellaneous water pipeline, opening the second electromagnetic valve, starting the miscellaneous water lift pump, directly filling the pump group effluent into the perforated flushing pipe, and flushing the bottom of the water collecting area; after the flushing is carried out for a set time, the second electromagnetic valve is closed, the fourth electromagnetic valve is started, and the water discharged from the service water lift pump is directly discharged to the backwashing water discharge pipe and discharged to the small-scale municipal inspection well.

Further, the method comprises a water quality control process, wherein a dosing pump is started according to the feedback of the cooling tower water quality control module to dose the pipe network.

Further, the method includes a rainy season control mode and an arid season control mode.

Furthermore, the method comprises a device parallel connection control process, and when multiple groups of devices are connected to the same pipe network, the start and stop of the service water lift pumps in the devices are sequentially controlled according to the pressure on the service water supply pipe network.

Compared with the prior art, the invention can realize at least one of the following beneficial effects:

1. the comprehensive water-saving integrated equipment for the cooling tower of the public building can realize the direct utilization of rainwater, utilizes the concepts of modularization and integration, arranges basic equipment such as rainwater collection, treatment and the like in a container, can be directly prefabricated and molded in a factory and can be installed in place at one time, is convenient to transport and flexibly deployed, can be normally used only by directly hoisting the equipment in place and connecting the equipment in place with related pipelines such as a rainwater pipeline, a rainwater recovery pipeline and the like in a construction site, can effectively reduce the time of site construction of the rainwater utilization equipment, shortens the installation period and improves the reliability of the equipment.

2. The invention discloses a comprehensive water-saving integrated device for a cooling tower of a public building, which comprises a device area, a drainage area and a water collecting area, wherein after roof rainwater is connected into the drainage area, initial rainwater can be discharged, clean roof rainwater flows into the water collecting area and is stored and recycled, the device has the functions of roof rainwater recycling and utilization, and the like, is comprehensive rainwater utilization equipment capable of retaining, collecting and recycling rainwater, further recycles the rainwater, can effectively utilize the roof rainwater to a cooling circulating water system, and can also be used in places where rainwater such as domestic miscellaneous water, fire fighting, outdoor greening, landscape water and the like is utilized.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present specification, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic plan view of a water-saving integrated equipment for a cooling tower of a public building according to a preferred embodiment of the present invention;

FIG. 2 is a schematic plan view of a flow discarding area and a collecting area of the integrated water-saving device for a cooling tower of a public building of the present invention;

FIG. 3 is a schematic plan view of the equipment area and the collecting area of the integrated water-saving equipment for the cooling tower of the public building of the present invention;

FIG. 4 is a schematic view of the rainwater treatment and reuse flow of the integrated water-saving device for the cooling tower of the public building.

Reference numerals:

100. discarding the flow area; 200. a collection region; 300. an equipment area;

1. draining rainwater into a pipe; 2. miscellaneous water pipes; 3. a small municipal water supply pipe; 4. an overflow pipe; 5. a waste lift pump; 6. a lift pump for the service water; 7. a perforation flush tube; 8-1, a first electromagnetic valve; 8-2, a second electromagnetic valve; 8-3, a third electromagnetic valve; 8-4, a fourth electromagnetic valve; 9. a mechanical filter; 10. a dosing box; 11. a dosing pump; 12. a pressure sensor; 13. a flow meter; 14. backwashing the drain pipe; 15. an air pressure tank; 16. a first electronic level gauge; 17. a second electronic level gauge; 18. a control box; 19. a grid; 20. a flow-discarding lifting drain pipe; 21. an electromagnetic three-way valve; 22. a manhole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.

For the purpose of facilitating understanding of the embodiments of the present application, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, which are not intended to limit the embodiments of the present application.

In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

The invention discloses a comprehensive water-saving integrated device for a cooling tower of a public building, which comprises the following components in parts by weight as shown in figures 1-3:

the rainwater drainage system comprises a waste flow area 100, wherein the waste flow area 100 is connected with a rainwater drainage pipe 1 and a sewage drainage pipe, the rainwater drainage pipe 1 is used for rainwater to flow in, and the sewage drainage pipe is used for sewage drainage in the early stage of rainfall;

the water collecting area 200 is characterized in that a water inlet of the water collecting area 200 is communicated with the flow discarding area 100, the water collecting area 200 can store rainwater flowing from the flow discarding area 100, and a service water lift pump 6 is arranged in the water collecting area 200 and is connected with a water using point through a service water pipeline 2;

the equipment area 300 is provided with a control box 18, and the control box 18 is used for controlling the operation of the integrated equipment;

wherein, the curtailment area 100, the water collecting area 200 and the equipment area 300 are integrated in the container.

Specifically, the integrated water-saving device for the cooling tower of the public building of the embodiment comprises a container, wherein the container comprises a flow abandoning area 100, a collecting area 200 and a device area 300, the flow abandoning area 100, a water collecting area 200 and the device area 300 are integrally arranged in the container, three areas are divided by partition plates, and the internal spaces of the flow abandoning area 100, the collecting area 200 and the device area 300 are independent respectively.

In this embodiment, the flow discarding area 100, the water collecting area 200, and the equipment area 300 are integrated in the container, and can be directly prefabricated and molded in a factory and installed in place at one time, so that transportation, flexible deployment, and field installation are facilitated.

In order to fully utilize the internal space of the container, the flow abandoning area 100, the water collecting area 200 and the equipment area 300 are divided into three parts by partition plates, and the three parts are divided by the partition plates, so that the space utilization rate in the container is improved, and the integration degree of equipment is improved.

In an alternative embodiment of this embodiment, the area of the water collection area 200 is the largest among the three parts, that is, the volume of the raintank tank is larger than that of either the drainage tank or the equipment tank, and the rainwater collection and treatment capacity is improved by increasing the storage volume of the rainwater.

In order to further improve the integration degree of the equipment, the flow abandoning area 100, the water collecting area 200 and the equipment area 300 are arranged along the flow direction of the water, and the flow abandoning area 100 and the equipment area 300 are positioned on the same side of the water collecting area 200. Because the volume of water-collecting area 200 is the biggest, abandon the volume of class district 100 and equipment district 300 and be little, can arrange abandon class district 100 and equipment district 300 in one side of water-collecting area 200, and the superpose setting, can further improve the volume in the container, when promoting equipment integration, improved the space utilization of container.

Considering the early stage of rainfall, the pollutant content in the rainwater is high, abandon and flow elevator pump 5 in the district 100 of flowing, abandon and flow elevator pump 5 and pass through the sewage discharge pipe with the sewage discharge of the early stage of rainfall, especially ground 2-3 mm's rainwater, avoid the high dirty rainwater of rainfall initial stage high dirt directly to get into water catch area 200, not only can guarantee retrieval and utilization quality of water, but also can reduce the silt deposit in the rainwater.

In this embodiment, the flow discarding area 100 has a certain volume, and as the rainwater continuously enters the flow discarding area 100, the rainwater exceeding the volume of the flow discarding area 100 naturally flows into the water collecting area 200 through the primary grille 19 for storage. Specifically, the waste flow area 100 is provided with an overflow port, and the overflow port of the waste flow area 100 is communicated with the water inlet of the water collecting area 100; the rainwater flowing out from the overflow port of the flow abandoning area 100 naturally flows into the water collecting area 100 for storage after being filtered by the grating 19.

In order to accurately control the starting time of the waste flow lifting pump 5, a second electronic liquid level meter 17 is arranged in the waste flow area 100, and the second electronic liquid level meter 17 is used for monitoring the water level in the waste flow area 100 and is electrically connected with the control box 18.

As shown in fig. 4, the roof rainwater is collected by the roof and flows into the roof rainwater hopper and the rainwater pipeline, and the rainwater pipeline is connected to the drainage area 100 of the container. After the rainwater level in the waste flow area 100 reaches the pump starting level, a signal is sent by the second electronic liquid level meter 17, the waste flow lifting pump 5 is started, and the waste flow area is emptied. Within 24 hours (dry season) or 48 hours (rainy season), no matter whether the rainwater in the abandoning flow area 100 reaches the pump starting water level, the abandoning lift pump is not started. Rainwater exceeding the volume of the drainage area naturally flows into the water collection area 200 through the primary grating 19 for storage. After 24 hours (dry season) or 48 hours (rainy season), if the water level reaches the pump starting water level, the flow abandoning lifting pump 5 is started again, and the flow abandoning area is emptied. And the process is circulated.

In heavy rain, the rainwater continuously flows into the flow abandoning area 100 and naturally flows into the water collecting area 200, however, the water storage space of the water collecting area 200 is certain, and if the rainwater in the water collecting area 200 is full, the normal operation of the equipment can be influenced by continuously supplying the rainwater. Therefore, an overflow pipe 4 is arranged in the curtailment area 100, and when the amount of rainwater flowing into the water collection area 200 exceeds the volume of the water collection area 200, the rainwater exceeding the volume of the rainwater tank overflows into the small municipal rainwater well through the overflow pipe 4, so as to ensure the normal operation of the equipment.

In this example, the water collecting area 200 is connected to a small municipal water supply pipe 3, the municipal water supply pipe 3 is used to supplement the water amount in the water collecting area 200, the small municipal water supply pipe 3 passes through the equipment area 300, a first solenoid valve 8-1 and a flowmeter 13 are arranged on the small municipal water supply pipe 3 in the equipment area 300, the start and stop of the municipal water supply pipe are controlled by controlling the first solenoid valve 8-1, and the water supplement volume of the municipal water supply pipe is recorded by the flowmeter 13. A first electronic liquid level meter 16 and a service water lift pump 6 are arranged in the water collecting area 200; the first electronic level gauge 16 is used to monitor the water level within the water collection area 200; the service water lift pump 6 is used as power equipment for rainwater recycling, and rainwater is supplied to a water using point through the service water pipeline 2; the first electronic liquid level meter 16 and the service water lift pump 6 are both electrically connected with the control box 18. When the equipment is operated, the first electronic liquid level meter 16 monitors the water level in the water collecting area 200 in real time, and when the water level is the lowest, the control box 18 stops the service water lifting pump 6 and starts the first electromagnetic valve 8-1 to supplement municipal tap water for the water collecting area; when the high water level of the tap water is reached, the first electromagnetic valve 8-1 is closed, the tap water is stopped being supplemented, and the normal rainwater storage volume of the rainwater tank is conveniently emptied.

Because the rainwater contains impurity particles such as silt, the equipment runs for a long time, and the impurity particles are continuously deposited and then are agglomerated into hard blocks, so that the effective volume of the water collecting area is reduced. Therefore, in an alternative embodiment of this embodiment, a back-flushing pipe is disposed in the water collecting region 200, and a solenoid valve is disposed on a water pipe connected to the service water lift pump 6, so as to switch to a tank flushing mode. Specifically, a backwashing pipeline is arranged in the water collecting area 200, the backwashing pipeline comprises a perforation flushing pipe 7 and a backwashing water discharge pipe 14, and both the perforation flushing pipe 7 and the backwashing water discharge pipe 14 are connected to the service water pipeline 2; the second electromagnetic valve 8-2 is arranged on the perforation flushing pipe 7, the perforation flushing pipe 7 is used for flushing the bottom wall of the water collecting area 200, a plurality of water spraying holes are arranged on the perforation flushing pipe 7, and at least a part of the water spraying holes of the perforation flushing pipe 7 face the bottom wall of the water collecting area 200; a fourth electromagnetic valve 8-4 is arranged on the back flushing drain pipe 14, and the back flushing drain pipe 14 is used for discharging the flushed sewage; and a third electromagnetic valve 8-3 is arranged on the service water pipeline 2.

Under the normal operation condition of the equipment, the second electromagnetic valve 8-2 and the fourth electromagnetic valve 8-4 are closed, the third electromagnetic valve 8-3 is opened, the effluent of the service water lift pump 6 directly acts on the service water pipeline 2, and the service water lift pump 6 supplies the rainwater in the water collection area 200 to a water using point. When the equipment runs for a period of time and the impurity deposition at the bottom of the water collecting tank 200 needs to be cleaned, the back washing is carried out by adjusting the on-off state of each electromagnetic valve. In a backwashing mode: and closing the third electromagnetic valve 8-3, preferentially opening the second electromagnetic valve 8-2, starting the service water lift pump 6, and directly filling the outlet water of the pump group into the perforation flushing pipe 7 to flush the bottom of the water collecting area. After 2 minutes, the second electromagnetic valve 8-2 is closed, the fourth electromagnetic valve 8-4 is started, and the effluent of the service water lift pump 6 is directly discharged to the backwashing water discharge pipe 14 and discharged to a small municipal inspection well. The back flush mode is to avoid the long-time back that deposits of rainwater in the catchment area, and the impurity in aquatic deposits the back and becomes the hard piece, reduces the effective volume in catchment area.

In this embodiment, service lift pump 6 is as the power equipment of rainwater retrieval and utilization, and service lift pump 6 adopts the well pump, sets up in the bottom of catchment area 200, adopts the installation mode under water, reduces the occupation to the box volume, effectively practices thrift the effective space in the container.

In order to fully utilize the volume of the container, the service water pipeline 2 passes through the equipment area 300 to be connected with a water consumption point; the backwashing water discharge pipe 14 penetrates through the equipment area 300 to be connected with municipal water discharge pipes, so that the opening of the container is reduced, the structural compactness of the equipment is improved, and the wall of the container can play a role in protecting miscellaneous water pipes and backwashing water discharge pipes.

In order to improve the quality of the recycled water, a mechanical filter 9 and a dosing device are further arranged on the service water pipeline 2, the mechanical filter 9 is used for filtering the effluent of the service water lift pump 6 and is used for simply filtering the effluent of the service water lift pump 6, so that too many impurities are prevented from entering a water using pipe network and equivalent 20-mesh filtering is realized; the dosing equipment is used for adding a medicament into the effluent of the general-purpose water lift pump 6 and adjusting the quality of the effluent.

Further, the dosing equipment comprises a dosing pump 11 and a dosing tank 10, wherein the dosing pump 11 is used for adding the medicament in the dosing tank 10 into the effluent of the service water lift pump 6, and can increase a retardant according to a subsequent process so as to delay the scaling rate of a pipe network.

In an optional implementation manner of this embodiment, the utility water pipe 2 is further provided with an air pressure tank 15 and a pressure sensor 12, the air pressure tank 15 is used for maintaining a certain pressure of the pipe network, and the pressure sensor 12 is used for monitoring the pressure in the pipe network.

In this embodiment, in order to further implement a modular design of the equipment, the first electromagnetic valve 8-1, the second electromagnetic valve 8-2, the third electromagnetic valve 8-3, the fourth electromagnetic valve 8-4, the flow meter 13, the mechanical filter 9, the dosing pump 11, the dosing tank 10, the air pressure tank 15, the control box 18, and the pressure sensor 12 are all installed in the equipment area 300, and a manhole 22 is arranged at the top of the equipment area 300, so that an inspector can conveniently go down into the equipment directly from the upper portion to perform maintenance work.

It should be noted that the control box 18 of the present embodiment is used as a main control box of the water-saving integrated device, and is used for controlling the opening and closing of each pump set and the solenoid valve in the water-saving integrated device, and receiving and recording signals of the electronic liquid level meter, the flow meter 13, the pressure sensor, and the like, and the control box 18 may control corresponding components to perform corresponding actions according to the received signals, or may perform corresponding control according to a preset program.

An optional implementation of this embodiment, the water conservation integration equipment of this embodiment can adopt parallel operation mode, and this integration equipment all can be installed to the different buildings in the building district, and a plurality of integration equipment pass through pipeline parallel connection, with the equipment in different positions, parallelly connected to same pipe network, according to the water pressure change of pipe network, automatic operation, the rainwater of each roofing of utilization district that can be better practices thrift rainwater resource. That is to say, roof rainwater at different positions is provided with a set of equipment, such as numbering equipment a, equipment b and the like, and the service water pipelines 2 of the equipment a, the equipment b … … and the like can be connected to the same water supply network and are controlled and connected by a set of controller. When the water pressure of the pipe network is reduced, the equipment a can be started preferentially, and after the water pressure of the pipe network meets the pressure, the equipment b is started in sequence, and so on.

Furthermore, the service water pipelines 2 of the equipment a, the equipment b and the like are connected to the same water supply network and are uniformly controlled and connected by a set of controller. The pipe network water pressure is decreased, the starting equipment a is preferentially started, the pipe network water pressure continues to decrease, and when the requirement is still not met, the starting equipment b is judged, and the rest is done, so that the normal water pressure of the pipe network water is maintained.

The embodiment also provides a roof rainwater recycling method using the integrated water-saving device of the public building cooling tower, and the roof rainwater recycling method comprises the following steps:

introducing roof rainwater into a waste flow area (100) and discharging rainwater at the early stage of rainfall;

rainwater in the flow abandoning area (100) enters the water collecting area (200), and is treated by the water collecting area (200) and then is supplied to a water using point.

The roof rainwater recycling method based on the public building cooling tower integrated water-saving integrated equipment comprises one or more of control of a flow abandoning area, dry control in rainy season, municipal water replenishing control, control of a general service water lifting pump, control of backwashing, water quality control and equipment parallel control, and specifically comprises the following control processes:

1. the flow abandoning area control process is as follows:

the control module of the abandoned flow area can control the start and stop of the abandoned flow lift pump 5 according to the water level of the abandoned flow area. The water level in the waste flow area is the lowest water level, the middle water level and the high water level. And controlling the start and stop of the flow abandoning lift pump 5 according to the water level in the flow abandoning area. Roof rainwater flows into the abandon flow area first, and the position of water level is monitored to the second electronic liquid level gauge 17 in the abandon flow area. Within 15 days, the stream is discardedAnd (4) starting the flow abandoning lift pump 5 after the water level does not reach the middle water level and reaches the middle water level for the first time, and stopping the pump after 2 minutes. When the water level is raised to a high level thereafter, the reject lift pump 5 is directly started. A flow-abandoning lift pump 5 with a flow rate of 15m³And h, completely discharging the flow-discarding rainwater in the flow-discarding area within 4min, and stopping the pump set after 4 minutes of starting the pump set. The reject lift pump 5 is no longer activated within 24 hours (dry season) or within 48 hours (rainy season).

2. The control process in rainy season and dry season is as follows:

according to the location of the equipment, the switching mode of rainy season and dry season can be set. Taking Beijing as an example, the rainy season can be set to be 5-9 months, and the rainfall is abundant. In other seasons, the rainfall is less. And other places are set according to local rainfall. In southern cities, all the cities can be set to be rainy seasons.

3. The municipal water replenishing control process comprises the following steps:

and (3) controlling the municipal water supply pipe, namely opening a first electromagnetic valve 8-1 of the small municipal water supply pipe to fill water in the water collection area when the water level in the water collection area is low for a long time. A first electronic liquid level meter 16 is arranged in the water collecting area and used for monitoring the water level of the water collecting area. The water collecting area is provided with a lowest water level, a municipal water replenishing and stopping water level and a highest water level (overflow water level) from bottom to top. And (3) starting a first electromagnetic valve 8-1 on the municipal water replenishing pipe when the water level of the water collecting area reaches the lowest water level in the absence of rain and weather for a long time, and replenishing the water quantity in the water collecting area by using municipal water supply. When the municipal water supply and water cut-off water level is reached, the first electromagnetic valve 8-1 is closed, and the municipal water supply is stopped.

4. The control process of the general water lift pump is as follows:

the pump set can be controlled to start and stop according to the pressure of the water using pipe network. The utility water recycling pipeline 2 is provided with a pressure sensor 12, and when the pressure of the pipe network is monitored to be too low, the utility water lift pump 6 is directly started. When the pressure of the pipe network is normal, the general water lift pump 6 is stopped. The lift pump 6 for the miscellaneous water has two sets, one set is used and the other set is standby, and one set is started each time and started in turn. When the first electronic liquid level meter 16 of the water collecting area detects that the water level is the lowest water level, the service water lift pump 6 is stopped to be started. When the water level reaches the municipal water replenishing and water stopping water level, the service water lift pump 6 is started again.

5. The back washing control process is as follows:

and (4) controlling a back washing pipeline, starting a back washing module when the back washing pipeline is cut off, washing the bottom of the water collecting area and discharging washing wastewater. Under the normal operation condition, the second electromagnetic valve 8-2 and the fourth electromagnetic valve 8-4 are closed, the third electromagnetic valve 8-3 is opened, the effluent of the service water lift pump 6 directly acts on the service water pipeline 2, and the service water lift pump 6 supplies the rainwater in the water collection area 200 to a water using point. The backwash mode may be activated automatically or manually, such as by setting a 1 month interval, and activating a single backwash mode. One backwash cycle is as follows: closing an electromagnetic valve 8-3 of the miscellaneous water pipeline, preferentially opening a second electromagnetic valve 8-2, starting a miscellaneous water lift pump 6, directly filling the pump group water outlet into a perforation flushing pipe 7, flushing the bottom of the water collection area by rainwater under the action of the perforation flushing pipe 7 to stir the sludge at the bottom of the water collection area, closing the second electromagnetic valve 8-2 after 2 minutes, starting a fourth electromagnetic valve 8-4, directly discharging the water outlet of the miscellaneous water lift pump 6 to a back flush drain pipe 14, and discharging the water outlet into a small-municipal administration inspection well. This process was 2 minutes.

The backwashing can be programmed for 1-3 cycles at a time. Through setting up the back flush mode, can effectively avoid the long-time back that deposits of rainwater in the catchment area, the impurity deposit back of aquatic is become the hard piece, reduces the effective volume of catchment area.

6. The water quality control process is as follows:

according to the feedback of the cooling tower water quality control module, the dosing pump can be started to dose the pipe network. When a plurality of devices are used simultaneously, the device can automatically operate in sequence by a single device or a plurality of devices.

The water quality control module and the cooling tower are internally provided with water quality control sensors, when the water quality is poor, signals can be output, the dosing pump 11 is started, and the dosing pump 11 can directly pressurize the medicament in the dosing box 10 into a pipe network to control the water quality.

7. The equipment parallel control process comprises the following steps:

when a plurality of groups of equipment are connected into the same pipe network, the start and stop of the service water lift pump in each equipment can be sequentially controlled according to the pressure on the service water supply pipe network. When the pressure is low, a service water lift pump on one device is started in sequence. And when the pressure continues to drop, starting a service water lift pump of the second equipment. And analogizing in turn, and starting the single service water lift pump on all the parallel devices. When the pressure reaches the design requirement, the single service water lift pump is closed in sequence.

During installation, the integrated water-saving equipment of the cooling tower of the public building can be directly installed outdoors on the ground or buried underground. When the container is installed on the ground, the container can be directly hung on the outdoor ground after arriving at the site, and is convenient to use normally after being connected with a roof rainwater main pipe, a municipal water supply pipe network and a general water pipeline. When buried underground installation, need dig the foundation ditch earlier subaerial, after the foundation ditch is dug out, equipment hoist and mount get into the foundation ditch after, connect roofing downspout 1, miscellaneous water pipe 2, small municipal administration delivery pipe 3, the overflow pipe 4 of discharging into small municipal administration rainwater inspection shaft, the overflow promotion drain pipe 20 of discharging into small municipal administration rainwater inspection shaft. After the pipeline is connected, the foundation pit is backfilled, and the top surface of the foundation pit can be provided with a grassland or a road to be used as a normal ground, so that the influence of the container on the building is effectively reduced, and the container is attractive and elegant; during backfilling, the position of a manhole is ensured, an inspection well is reserved on the ground, and during the period of convenient maintenance, personnel enter the equipment to carry out maintenance work.

Examples of the applications

The area of the roof is about 200m²The invention relates to a comprehensive water-saving integrated device of a cooling tower of a public building, which is installed underground outdoors. And the roof rainwater is connected into the abandoned flow area and is connected with a small municipal water supply pipe, an miscellaneous water supply pipe, an overflow rainwater and abandoned rainwater pump pipeline to be discharged into a small municipal rainwater inspection well. Under normal conditions, rainwater is discharged into the abandoned flow area, the water level of the abandoned flow area is gradually increased, and after the water level reaches the middle water level, the abandoned flow lifting pump is started to discharge initial ground rainwater in the abandoned flow area. Starting for a certain time, stopping the flow discarding lifting pump 5 after the initial rainwater reaches the effective volume of the flow discarding box, and stopping starting within 24 h. The rainwater quantity continuously flows into the flow abandoning area, and the excessive rainwater flows into the water collecting area to be stored.

The equipment is connected to an outdoor cooling tower water supply. When the water pressure control device is used, the control box judges the water pressure in the pipe network through the pressure sensor of the water pipe network for miscellaneous use, and when the water pressure is too low, one of the lift pumps 6 for miscellaneous use is started to supplement the water pressure in the pipe network. The service water lift pump 6 is used for one time and is standby for one time, and the service water lift pump are operated alternately. The miscellaneous water pipeline is provided with a dosing tank, a dosing pump and a mechanical filter, and can carry out dosing, filtering and other operations on the supplied water. Illustratively, a retardant can be added into water to delay the scaling rate of a pipe network, and rainwater in the pipe network passes through a mechanical filter to filter impurities in the water.

Under the weather of long-time no rain, the equipment rainwater can not in time supply, and after reaching the low water level this moment, the controller judges the water level, opens the solenoid valve of small municipal administration water supply pipe, and the water catch area can be through the moisturizing of small municipal administration water supply pipe network, reaches the running water moisturizing after the highest water level, and the solenoid valve is closed, has guaranteed when rainy season comes, and the water catch area can be through the long-time moisturizing of rainwater.

Compared with the prior art, the water conservation integration equipment is synthesized to public building cooling tower that this embodiment provided, the application modularization, the notion of integrating, collect the rainwater, basic unit integration such as processing sets up in a standard container, the degree of integrating is high, the equipment can be in mill direct prefabrication shaping, once install in place, convenient transportation, nimble deployment, at the job site, only need directly hoist the equipment and put in place, put in place with relevant pipe connections such as rainwater pipeline, rainwater recovery pipeline, alright normal use, can effectively reduce the time of rainwater utilization equipment at the site operation, shorten installation cycle, improve equipment's reliability simultaneously. After the roof rainwater inserts abandon the flow district, can discharge initial stage rainwater, later clean roof rainwater flows in the catchment district and stores, the retrieval and utilization has functions such as roof rainwater recovery, utilization concurrently, be one kind can be detained the rainwater, collect, the comprehensive rainwater utilization equipment of retrieval and utilization, further with the rainwater resourceization, can directly effectively utilize the roof rainwater, retrieval and utilization to the cooling cycle water system, also can be used to the rainwater utilization's such as domestic miscellaneous water, fire control and outdoor afforestation, landscape water, and can also effectively reduce city rainwater flood peak, reduce the impact to municipal rainwater pipe network.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are described in further detail, it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. The utility model provides a water conservation integration equipment is synthesized to public building cooling tower which characterized in that includes:

the rainwater drainage system comprises a waste flow area (100), wherein the waste flow area (100) is connected with a rainwater drainage pipe (1) and a sewage drainage pipe, the rainwater drainage pipe (1) is used for rainwater to flow in, and the sewage drainage pipe is used for sewage drainage in the early stage of rainfall;

the water collecting area (200), the water inlet of the water collecting area (200) is communicated with the flow abandoning area (100), the water collecting area (200) is used for storing rainwater flowing from the flow abandoning area (100), and the water collecting area (200) is connected with a water using point through a service water pipeline (2);

a device area (300) located at one side of the curtailment area (100) or the water collection area (200);

the flow abandoning area (100), the water collecting area (200) and the equipment area (300) are integrated in the container and are separated by a partition plate; the flow abandoning area (100), the water collecting area (200) and the equipment area (300) are arranged along the flow direction of water flow, and the flow abandoning area (100) and the equipment area (300) are positioned at the same side of the water collecting area;

a waste flow lifting pump (5) is arranged in the waste flow area (100), and the waste flow lifting pump (5) discharges sewage in the early stage of rainfall through a sewage discharge pipe;

a backwashing pipeline is arranged in the water collecting area (200), the backwashing pipeline comprises a perforation flushing pipe (7) and a backwashing drainage pipe (14), and the perforation flushing pipe (7) and the backwashing drainage pipe (14) are connected to the miscellaneous water pipeline (2);

a second electromagnetic valve (8-2) is arranged on the perforation flushing pipe (7), and at least a part of water spray holes of the perforation flushing pipe (7) face to the bottom wall of the water collecting area (200);

a fourth electromagnetic valve (8-4) is arranged on the back flushing drain pipe (14), and the back flushing drain pipe (14) penetrates through the equipment area (300) and is connected with a municipal drainage pipeline;

a third electromagnetic valve (8-3) is arranged on the miscellaneous water pipeline (2);

the integrated water-saving equipment for the cooling towers of the public buildings is connected in parallel through pipelines, and the integrated water-saving equipment for the cooling towers of the public buildings at different positions is connected in parallel into the same pipeline network.

2. The integrated water-saving equipment of the cooling tower of the public building as claimed in claim 1, wherein a first electronic liquid level meter (16) and a service water lift pump (6) are arranged in the water collecting area (200), and a second electronic liquid level meter (17) is arranged in the flow abandoning area (100); the service water lift pump (6) is connected with the service water pipeline (2), and the service water pipeline (2) penetrates through the equipment area (300) to be connected with a water consumption point;

the first electronic liquid level meter (16), the second electronic liquid level meter (17) and the service water lift pump (6) are electrically connected with a control box (18) in the equipment area (300).

3. The integrated water-saving equipment for the cooling tower of the public building as claimed in claim 2, wherein the water collecting area (200) is connected with a small municipal water supply pipe (3), the small municipal water supply pipe (3) passes through the equipment area (300), and a first electromagnetic valve (8-1) and a flow meter (13) are arranged on the small municipal water supply pipe (3).

4. The integrated water-saving equipment of the cooling tower of the public building according to claim 3, wherein the first electromagnetic valve (8-1), the second electromagnetic valve (8-2), the third electromagnetic valve (8-3), the fourth electromagnetic valve (8-4), the flow meter (13) and the control box (18) are all arranged in the equipment area (300);

the top of the equipment area (300) is provided with a manhole (22).

5. A roof rainwater recycling method is characterized in that the comprehensive water-saving integrated equipment of the public building cooling tower of any one of claims 1 to 4 is utilized;

the roof rainwater recycling method comprises the following steps:

rainwater in the flow abandoning area (100) enters the water collecting area (200), and is treated by the water collecting area (200) and then is supplied to a water using point;

the method comprises a backwashing control process;

the backwashing control period is as follows: closing an electromagnetic valve (8-3) of the miscellaneous water pipeline, opening a second electromagnetic valve (8-2), starting an miscellaneous water lift pump (6), directly filling the outlet water of the pump set into a perforation flushing pipe (7), and flushing the bottom of the water collecting area (200); after the flushing is carried out for a set time, the second electromagnetic valve (8-2) is closed, the fourth electromagnetic valve (8-4) is started, and the water outlet of the service water lift pump (6) is directly discharged to a backwashing water discharge pipe (14) and discharged to a small municipal inspection well;

the method comprises a device parallel connection control process, and when multiple groups of devices are connected to the same pipe network, the start and stop of the service water lift pumps in the devices are sequentially controlled according to the pressure on the service water supply pipe network.

6. The method for recycling roof rainwater according to claim 5, wherein the method comprises a municipal water replenishing control process;

the municipal water replenishing control process comprises the following steps: when the water level of the water collecting area (200) reaches the lowest water level, starting a first electromagnetic valve (8-1) and supplementing water to the water collecting area (200) by using municipal water supply; when the water level of the water collecting area (200) reaches the municipal water replenishing and stopping level, the first electromagnetic valve (8-1) is closed, and the municipal water supply is stopped.

7. The method for recycling roof rainwater according to claim 6, wherein the method comprises a process for controlling a service water recycling pump;

the control process of the reuse pump for the miscellaneous water comprises the following steps: when the pressure of the pipe network is too low, the lift pump (6) for the service water is directly started; when the pressure of the pipe network is normal, the lift pump (6) for the general water is stopped; wherein, the lift pump (6) for the miscellaneous water has two pumps, one pump is used and the other pump is standby, and one pump is started each time and started in turn;

when the water level of the water collecting area (200) is the lowest water level, stopping starting the service water lift pump (6); when the water level reaches the municipal water replenishing and stopping water level, the general-purpose water lift pump (6) is started again.