CN110156114A - A rainwater treatment device with roof rain energy driving portable hollow fiber membranes - Google Patents

Abstract

The invention discloses the rainwater treatment devices that a kind of roofing rain can drive portable hollow-fibre membrane, ditch including being set to the rainwater of eaves bottom end, set on the header tank of house wall face, for carrying out the doughnut membrane treatment appts and water purification storage bin of hyperfiltration treatment to the rainwater flowed out from header tank；Header tank, water receiver, doughnut membrane treatment appts and water purification storage bin are set gradually from top to bottom；Water purification storage bin is house water supply by elevator pump.The present invention provides the water pressure needed after water process using the gravitional force of rainwater itself for doughnut membrane treatment appts, and the tap or cleaning toilet apparatus on each different height are delivered water by elevator pump, a certain amount of supply is provided after people purify rainwater for household water, reduce the usage amount of tap water, the water process pressure for thereby reducing people's lives cost and waterworks has the advantages that structure is simple, water treatment efficiency is good and reduces living cost.

Description

A rainwater treatment device with roof rain energy driving portable hollow fiber membranes

technical field

The invention relates to a water treatment device, in particular to a rainwater treatment device with roof rain energy driving portable hollow fiber membranes.

Background technique

Compared with domestic drinking water, domestic miscellaneous water includes toilet flushing, washing, watering, landscape water and fire fighting water. Studies have shown that household water consumption accounts for 80%-90% of the total household water consumption, that is, only 10%-20% of urban water supply is used for domestic drinking water at this stage. As a natural weather phenomenon, rain can provide people with a lot of rainwater, but now the rainwater that falls on the house usually flows directly into the ground and into the ground or is discharged into the river or the sea through pipes, making it impossible for people to use the rainwater For daily use, such as washing vegetables, dishes and bathing, it is impossible to reduce people's dependence on and use of tap water, thereby increasing people's living costs and water treatment pressure on water plants.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above problems, and to provide a rainwater treatment device for a portable hollow fiber membrane driven by roof rainwater, which has a simple structure, does not require electric power to drive, and reduces living costs. The structure can purify rainwater, and use the purified rainwater for daily use, such as washing vegetables, washing dishes and bathing, thereby reducing people's dependence on and use of tap water, thereby reducing people's living costs and Water treatment pressure in a waterworks.

Purpose of the present invention can adopt following technical scheme to reach:

A rainwater treatment device capable of driving portable hollow fiber membranes by roof rain energy, comprising a water ditch arranged at the bottom end of the eaves and used to collect rainwater flowing down from the roof, and a water ditch arranged on the outer wall of the house and connected with the water ditch. Water tank, hollow fiber membrane treatment device installed on the outer wall of the house and used for ultrafiltration treatment of rainwater flowing from the water collection tank, and purified water storage for storing the treated rainwater flowing out from the hollow fiber membrane treatment device The water collecting tank, the hollow fiber membrane treatment device and the clean water storage tank are arranged in sequence from top to bottom; the water outlet of the clean water storage tank supplies water to the house through a lift pump.

Further, the water inlet of the hollow fiber membrane treatment device is communicated with the water outlet of the water collecting tank.

Further, there are multiple hollow fiber membrane treatment devices, and the water inlets of the multiple hollow fiber membrane treatment devices are connected in parallel with the water outlet of the water collecting tank through pipes, and the water outlets of the multiple hollow fiber membrane treatment devices are connected in parallel. It is communicated with the water inlet of the clean water storage tank through a pipeline.

Further, the water purification storage tank is arranged on the outer wall of the house, and the water purification storage tank and the hollow fiber membrane treatment device are located on the same outer wall.

Further, the water collecting tank is provided with a first drain valve for discharging excess water in the water collecting tank.

Further, the water collecting tank is communicated with the water inlet of the hollow fiber membrane treatment device through a pipeline, and the pipeline is connected in series with a first control valve for controlling the flow rate, opening and closing of the pipeline.

Further, the water outlet of the hollow fiber membrane treatment device is communicated with the water inlet of the clean water storage tank through a pipeline, and the pipeline is connected in series with a second control valve for controlling the flow, opening and closing of the pipeline.

Further, the bottom end of the hollow fiber membrane treatment device is provided with a second drain valve.

Implement the present invention, have the following beneficial effects:

1. The rainwater of the present invention uses its own gravitational potential energy to flow into the water collecting tank to be collected and flow into the hollow fiber membrane treatment device. The hollow fiber membrane treatment device performs ultrafiltration on the inflowing rainwater, thereby filtering the rainwater into clean water and storing it in the clean water storage tank. The water in the clean water storage tank is pressurized by the lift pump to supply water to each floor in the house. The lift pump is transported to the faucet or toilet cleaning utensils in the user's home through pipes to provide various household needs, such as washing vegetables, washing dishes, bathing and flushing toilets. The structure utilizes the gravitational potential energy of rainwater itself to provide the water pressure required for water treatment for the hollow fiber membrane treatment device, and the water is transported to the faucets or toilet cleaning appliances at different heights through the lifting pump, so that people can purify the rainwater. It provides a certain amount of domestic water supply, reduces the use of tap water, and further reduces people's living costs and the water treatment pressure of water plants. It has the advantages of simple structure, good water treatment effect and lower living costs.

2. The present invention installs the purified water storage tank on the same outer wall as the hollow fiber membrane treatment device, so that the connection between the hollow fiber membrane treatment device and the purified water storage tank can be simply connected by a vertical straight pipe, without using a vertical pipe. Connecting straight pipes, elbows and horizontal straight pipes greatly simplifies the installation structure and reduces the number of pipes used, which not only facilitates installation and connection, but also reduces the cost of use.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of Embodiment 1 of the rainwater treatment device for the portable hollow fiber membrane driven by roof rain energy of the present invention;

FIG. 2 is a schematic structural diagram of Embodiment 2 of the rainwater treatment device for the portable hollow fiber membrane driven by roof rain energy according to the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Referring to FIG. 1 , the present embodiment relates to a rainwater treatment device with a portable hollow fiber membrane driven by roof rain energy, including a water ditch 1 arranged at the bottom end of the eaves 10 and used to collect rainwater flowing from the roof, arranged on the outer wall of the house and connected to the The water collection tank 2 connected with the water ditch 1 is arranged on the outer wall of the house and is used to perform ultrafiltration treatment on the rainwater flowing out of the water collection tank 2. The hollow fiber membrane treatment device 3, and the hollow fiber membrane treatment device for storing The purified water storage tank 4 of the treated rainwater flowing out of the device 3; the water collection tank 2, the hollow fiber membrane treatment device 3 and the purified water storage tank 4 are arranged in order from top to bottom; the outlet of the purified water storage tank 4 The water outlet supplies water to the house through the lift pump 5 .

The rainwater of the present invention flows into the water collecting tank 2 using its own gravitational potential energy, is collected, and flows into the hollow fiber membrane treatment device 3 . The hollow fiber membrane treatment device 3 performs ultrafiltration on the inflowing rainwater, thereby filtering the rainwater into clean water and storing it in the clean water storage tank 4 . The water in the clean water storage tank 4 is pressurized by the lift pump 5 to supply water to each floor in the house. The lift pump 5 is transported to the faucet or toilet cleaning appliance in the user's home through a pipeline, so as to provide various household needs, such as washing vegetables, washing dishes, bathing and flushing toilets. The structure utilizes the gravitational potential energy of rainwater itself to provide the hollow fiber membrane treatment device 3 with the water pressure required for water treatment, and the water is transported to the faucets or toilet cleaning appliances at different heights through the lift pump 5, so that people can carry out treatment on the rainwater. After purification, it can provide a certain amount of domestic water supply, reduce the use of tap water, and then reduce people's living costs and the water treatment pressure of water plants. It has the advantages of simple structure, good water treatment effect and reduced living costs.

The water inlet of the hollow fiber membrane treatment device 3 communicates with the water outlet of the water collecting tank 2 . Since the water collection tank 2 is arranged above the hollow fiber membrane treatment device 3, the rainwater flowing out of the water collection tank 2 has gravitational potential energy relative to the hollow fiber membrane treatment device 3, so that the rainwater flowing into the water inlet of the hollow fiber membrane treatment device 3 reaches the The required water pressure, so that the rainwater can be transported into the hollow fiber membrane treatment device 3 for purification without the need for electric power drive, which saves energy input and use costs, and is environmentally friendly.

There are multiple hollow fiber membrane treatment devices 3, and the water inlets of the multiple hollow fiber membrane treatment devices 3 are connected in parallel with the water outlet of the water collecting tank 2 through pipes, and the water outlets of the multiple hollow fiber membrane treatment devices 3 are connected in parallel. Afterwards, it is communicated with the water inlet of the purified water storage tank 4 through a pipeline. The installed quantity of the hollow fiber membrane treatment devices 3 is determined according to the user's domestic miscellaneous water consumption. As the demand for water increases, the number of hollow fiber membrane treatment devices 3 that need to be installed increases accordingly.

The water collecting tank 2 is provided with a first drain valve 6 for discharging excess water in the water collecting tank 2 . After the rainwater in the water collection tank 2 is fully stored, the excess water in the water collection tank 2 can be drained through the first drain valve 6, so as to protect the rainwater in the water ditch 1 from being drained through the water collection tank 2 in time.

The water collecting tank 2 is communicated with the water inlet of the hollow fiber membrane treatment device 3 through a pipeline, and the pipeline is connected in series with a first control valve 7 for controlling the flow rate, opening and closing of the pipeline. When it is necessary to control the communication or closure of the water collection tank 2 and the hollow fiber membrane treatment device 3, and to control the flow rate of the rainwater output from the water collection tank 2, it can be realized by manually or electrically controlling the opening amplitude of the valve core of the first control valve 7.

The water outlet of the hollow fiber membrane treatment device 3 communicates with the water inlet of the clean water storage tank 4 through a pipeline, and the pipeline is connected in series with a second control valve 8 for controlling the flow, opening and closing of the pipeline. When it is necessary to control the communication or closing of the hollow fiber membrane treatment device 3 and the purified water storage tank 4, and to control the flow rate of rainwater output from the hollow fiber membrane treatment device 3, the valve core of the second control valve 8 can be opened manually or electrically. range to achieve.

The bottom end of the hollow fiber membrane treatment device 3 is provided with a second drain valve 9 . When the hollow fiber membrane treatment device 3 needs to be repaired or sludge discharged, the second drain valve 9 at the lower end of the hollow fiber membrane treatment device 3 can be manually opened for drainage and sludge discharge.

Taking a family of 4 members as an example, if the water consumption of one person is calculated as 220L/day, the shared water is 880L/day. The water collecting tank 2 is arranged along the wall with a length=5m, a width=1m, and a pool depth of 0.2m, which can accommodate a total of ^1m3 of water, which is enough to meet the miscellaneous water needs of a family of 4.

The hollow fiber membrane treatment device 3 of the present invention is taken as an example with a diameter of 10 cm, the flux of the hollow fiber membrane membrane is taken as an example of 25-50 L/(m ² ·h · 0.01MPa), and the membrane area is 25 m ² . The water head is 2m, and 4 hollow fiber membrane treatment devices 3 are installed, which can process 1000L of water for 2 hours. When the installation user does not have enough space, such as case 2, the clean water storage tank 4 can be arranged along the wall to take length=5m, width=1m , the pool depth is 0.2m, and it can accommodate ^1m3 of water in total, which is enough to meet the miscellaneous water needs of a family of 4.

The effect of the present invention for treating rainwater is listed in the following table according to the results of the existing experiments.

Ammonia nitrogen (mg/L) UV254 PH Turbidity (NTU) raw water 0.9～1.1 0.04～0.12 7.00～8.00 9.0～11.0 out of water 0～0.6 0～0.04 7.00～8.00 0.25～0.40

Example 2

This embodiment is based on Embodiment 1, as an improvement to the installation method of the water purification storage tank 4, as shown in FIG. The storage tank 4 is located on the same outer wall as the hollow fiber membrane treatment device 3 . The purified water storage tank 4 is installed on the same outer wall as the hollow fiber membrane treatment device 3, so that the hollow fiber membrane treatment device 3 and the purified water storage tank 4 can be simply connected by a vertical straight pipe, without using a vertical pipe. Connecting straight pipes, elbows and horizontal straight pipes greatly simplifies the installation structure and reduces the number of pipes used, which not only facilitates installation and connection, but also reduces the cost of use.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims (8)

1. A rainwater treatment device for a portable hollow fiber membrane driven by roof rain energy, characterized in that: it comprises a gutter that is arranged at the bottom end of the eaves and is used to collect the rainwater flowing down from the roof, and is arranged on the outer wall of the house and is connected to the A water collection tank connected with water channels, a hollow fiber membrane treatment device installed on the outer wall of the house and used for ultrafiltration treatment of rainwater flowing from the water collection tank, and a hollow fiber membrane treatment device for storing the treated water flowing out from the hollow fiber membrane treatment device. The clean water storage tank for rainwater; the water collecting tank, the hollow fiber membrane treatment device and the clean water storage tank are arranged in sequence from top to bottom; the water outlet of the clean water storage tank supplies water to the house through a lift pump. 2 . The rainwater treatment device of claim 1 , wherein the water inlet of the hollow fiber membrane treatment device is connected with the water outlet of the water collecting tank. 3 . 3. The rainwater treatment device of claim 1 or 2, wherein the roof rain energy drives portable hollow fiber membranes, wherein the hollow fiber membrane treatment devices are set in multiples, and the plurality of hollow fiber membrane treatment devices The water inlets are connected in parallel with the water outlet of the water collecting tank through pipes, and the water outlets of the multiple hollow fiber membrane treatment devices are connected in parallel with the water inlet of the clean water storage tank through pipes. 4. The rainwater treatment device of claim 1, wherein the water purification storage tank is arranged on the outer wall of the house, and the purified water storage tank is connected to the hollow fiber membrane. The fiber membrane treatment device is located on the same outer wall. 5 . The rainwater treatment device of claim 1 , wherein the water collecting tank is provided with a first drain valve for discharging excess water in the water collecting tank. 6 . 6 . The rainwater treatment device of claim 1 , wherein the water collecting tank is communicated with the water inlet of the hollow fiber membrane treatment device through pipes, and the pipes are connected in series. 7 . There is a first control valve for controlling the flow size, opening and closing of the pipeline. 7. The rainwater treatment device of claim 1, wherein the water outlet of the hollow fiber membrane treatment device is communicated with the water inlet of the clean water storage tank through a pipeline, And the pipeline is connected in series with a second control valve for controlling the flow rate, opening and closing of the pipeline. 8 . The rainwater treatment device of claim 1 , wherein the rainwater treatment device for portable hollow fiber membranes is driven by roof rain energy, wherein a second drain valve is provided at the bottom end of the hollow fiber membrane treatment device.