CN203213273U - Rainwater abandoning and treating device - Google Patents

Abstract

The utility model provides a rainwater abandoning and treating device, comprising a primary settling chamber, a secondary settling chamber and a discharge structure, wherein the primary settling chamber is connected with a rainwater inlet pipe, the secondary settling chamber is communicated with the primary settling chamber through a connecting pipe which is positioned in the middle of the primary settling chamber, and the discharge structure is communicated with the secondary settling chamber. The device provided by the utility model can be used for carrying out twice settling treatment on rainwater, and the rainwater flows to the secondary settling chamber from the middle of the primary settling chamber through the connecting pipe, so that floating pollutants on the water surface and precipitated pollutants at the water bottom are effectively filtered.

Description

A rainwater waste flow and treatment device

technical field

The utility model relates to the field of rainwater utilization and provides a rainwater abandonment and treatment device.

Background technique

my country is short of water resources, and its per capita share is only 1/4 of the world's average share. In recent years, as the contradiction between supply and demand of water resources has become increasingly prominent, people have gradually realized the value of rainwater resources, and have taken many effective measures to comprehensively utilize rainwater according to local conditions. Because the quality of rainwater collected by roofs is better than that of rainwater collected by ground, roof rainwater is an important way of rainwater utilization. In order to control pollutants such as leaves, bird droppings and suspended solids in the rainwater collected on the roof, special devices need to be designed to separate the heavily polluted initial runoff, so as to reduce the pollution load and reduce the pressure on the subsequent rainwater treatment devices. Therefore, discarding the initial rainwater collection and intercepting pollutants in the subsequent rainwater to effectively reduce the suspended solids load in the rainwater collection is the key to effectively utilizing the rainwater collection and ensuring the water quality of the rainwater collection.

The existing rainwater collection initial discharge device can only discard part of the rainwater with poor water quality during the initial rainfall, and has no effect on the precipitation and interception of pollutants in the subsequent rainwater. Therefore, the quality of rainwater cannot be purified to a maximum extent. The application of these rainwater The range is very small and not fully utilized (generally due to the impurities in rainwater, it is only suitable for watering flowers or cleaning non-valuable items, etc.).

Utility model content

The technical problem to be solved by the utility model is to provide a rainwater disposal and treatment device, which can carry out two sedimentation treatments on the rainwater, and effectively filter out the floating pollutants on the water surface and the sedimentary pollutants on the bottom of the water.

In order to solve the above technical problems, an embodiment of the present invention provides a rainwater abandonment and treatment device, which is characterized in that it includes:

The primary settling chamber connected to the rainwater inlet pipe;

A secondary settling chamber communicated with the primary settling chamber through a connecting pipe, the connecting pipe being located in the middle of the primary settling chamber;

A drainage structure communicating with the secondary settling chamber.

Wherein, the rainwater inlet pipe is specifically communicated with the primary settling chamber through the float chamber; the float chamber is provided with a float ball whose diameter is larger than that of the rainwater inlet pipe, and the rainwater inlet pipe When the inflowing rainwater is greater than a threshold, the floating ball closes the rainwater inlet pipe.

Wherein, the floating ball chamber is trapezoidal, its short side communicates with the rainwater inlet pipe, and its long side communicates with the primary settling chamber.

Wherein, the floating ball is made of wood and/or plastic.

Wherein, the drainage structure includes:

A drain pipe communicating with the secondary settling chamber.

an overflow pipe connecting the water inlet to the water outlet of the drain pipe, the position of the water inlet of the overflow pipe is higher than that of the water inlet of the drain pipe;

Wherein, the water inlet of the overflow pipe is also connected with the rainwater inlet pipe.

Wherein, the bottoms of the primary settling chamber and the secondary settling chamber are provided with mud discharge holes and vent valves.

Wherein, the diameter of the connecting pipe is smaller than that of the rainwater inlet pipe.

Wherein, the top of the rainwater inlet pipe is provided with a rain-collecting groove; wherein, the area of the rain-collecting groove is larger than that of the rainwater inlet pipe.

Wherein, a cover is provided above the secondary settling chamber, and the cover seals and closes the secondary settling chamber when closed.

Wherein, the cover is provided with an observation window.

Said scheme of the utility model has following beneficial effect:

With the device of the utility model, the rainwater first enters the primary sedimentation chamber through the rainwater inlet to complete the first sedimentation. When the water level reaches the position of the connecting pipe, it enters the secondary sedimentation chamber through the connecting pipe for the second sedimentation, and finally passes through the drainage The structure drains purified rainwater. Since the connecting pipe is located in the middle of the primary settling chamber, part of the pollutants deposited in the rainwater will be deposited at the bottom of the primary settling chamber, while the pollutants floating on the water surface will float through the connecting pipe, so it can play an effective purification role.

Description of drawings

Fig. 1 is the structural representation of rainwater abandonment flow and treatment device in the utility model embodiment:

In the figure; 1—rain collection tank; 2—rainwater inlet pipe; 3—mud discharge hole; 4—floating ball chamber; 5—primary sinking chamber; 6—cover; 7—observation window; —second sinking chamber; 10—connecting pipe; 11—floating ball; 12—overflow pipe; 13—drainage pipe.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following description will be made in conjunction with the accompanying drawings.

As shown in Figure 1, a rainwater abandonment and treatment device includes:

The primary settling chamber 5 connected with the rainwater inlet pipe 2;

The secondary settling chamber 9 communicated with the primary settling chamber 5 through a connecting pipe 10, and the connecting pipe 10 is located in the middle part of the primary settling chamber 5;

A drainage structure communicating with the secondary settling chamber 5.

With the device of the present utility model, the rainwater first enters the primary sedimentation chamber 5 through the rainwater inlet 2 to complete the first precipitation, and when the water level reaches the position of the connecting pipe 10, it will enter the secondary sedimentation chamber 9 through the connecting pipe 10 for the second precipitation. Sedimentation, and finally the purified rainwater is discharged through the drainage structure. Since the connecting pipe 10 is located in the middle of the primary settling chamber 5, a part of the pollutants deposited in the rainwater will be deposited at the bottom of the primary settling chamber 5, and the pollutants floating on the water surface will not float through the connecting pipe 10, so it can effectively Purifying effect.

In the above-mentioned embodiments of the present utility model, the rainwater inlet pipe 2 communicates with the primary sinking chamber 5 through the float chamber 4; the float chamber 4 is provided with a float 11 whose diameter is larger than that of the rainwater inlet. The diameter of the water pipe 2, when the rainwater flowing into the rainwater inlet pipe 2 in a unit time is greater than a threshold (that is, the flow rate of the rainwater inlet pipe 2 is greater than the flow rate of the drain pipe 13), the floating ball 11 closes the rainwater inlet pipe 2 It is connected with the initial sinking chamber.

In the above embodiments of the present utility model, the floating ball chamber 4 is trapezoidal, its short side communicates with the rainwater inlet pipe 2 , and its long side communicates with the primary settling chamber 5 . The trapezoidal structure of the floating ball chamber 4 can well guide the floating ball 11 and is more conducive to sealing the rainwater inlet pipe 2 .

Preferably, in the above-mentioned embodiments of the present invention, the floating ball 11 is made of wood and/or plastic, so as to reduce the weight, so that it is easier to float on the water surface, and the effect of sealing the rainwater inlet pipe 2 is better .

In the above-mentioned embodiments of the present utility model, the drainage structure includes:

A drain pipe 20 communicating with the secondary settling chamber 16;

An overflow pipe 22 where the water inlet is connected to the water outlet of the drain pipe 20, and the position of the water inlet of the overflow pipe 22 is higher than that of the water inlet of the drain pipe 20;

Wherein, the water inlet of the overflow pipe 22 is also connected with the rainwater inlet pipe 2 .

During primary stormwater treatment:

Rainwater enters the primary settling chamber 5 through the rainwater inlet pipe 2, large particles of heavy pollutants such as sediment are deposited at the bottom of the primary settling chamber 5, large particles of light pollutants such as leaves float on the liquid surface, and the water level gradually rises. If the water level reaches before the height of the drainpipe 10, the rainfall ends. At this time, the water stored in the primary settling chamber 5 is all the initial abandoned rainfall, and the degree of purification is low, so it is suitable for irrigation.

If the rainfall continues to increase, when the water level rises to the height of the drainpipe 10, the rainwater enters the secondary settling chamber 9 through the drainpipe 10, and the small particles of heavy pollutants are deposited at the bottom of the secondary settling chamber 9, and the small particles of light pollutants float on the bottom of the secondary settling chamber 9. On the surface of the water, the water level gradually rises. If rainwater does not flow out from drainpipe 13, rainfall just ends, and at this moment, in the primary settling chamber 5 and the secondary settling chamber 9, the water storage is the total initial rainfall abandonment.

In the mid-term stormwater treatment process:

If the rainfall continues, the rainwater is discharged from the drain pipe 13 . If the rainwater flowing into the rainwater inlet pipe 2 is less than a certain threshold within a unit time, the rainwater treatment is consistent with the above initial rainwater treatment process. At this time, the rainwater discharged from the drain pipe 13 has the highest degree of purification and can be used for car washing or pre-treatment of drinking water.

During heavy or stormy rain:

If within a unit time, the rainwater that rainwater inlet pipe 2 flows into is greater than a certain threshold, the water level in the initial settling chamber 5 gradually rises to the position of the float chamber 4, and the float 11 gradually rises under the effect of rainwater buoyancy, and finally the rainwater The outlet of the water inlet pipe 2 is closed, and the rainwater flowing into the rainwater inlet pipe 2 flows out through the overflow pipe 12 thereafter.

During heavy rain or heavy rain turning to moderate rain or light rain:

If the rainfall intensity gradually decreases, when the rainwater that rainwater inlet pipe 2 flows in is lower than a certain threshold again, the float 11 in the float chamber 4 will gradually decline with the water level lowering, and the drainage will gradually stop in the overflow pipe 12, and the rainwater thereafter will The treatment is consistent with the above initial rainwater treatment process.

Specifically, in the above-mentioned embodiments of the present utility model, the bottoms of the primary settling chamber 5 and the secondary settling chamber 9 are provided with mud discharge holes 3 and vent valves 8;

In the process after the end of the precipitation:

Open the vent valve 8, the bottom rainwater in the primary settling chamber 5 and the secondary settling chamber 9 is released, and the released rainwater can be used to water garden economic crops.

After the rainwater in the primary settling chamber 5 and the secondary settling chamber 9 is emptied, the mud discharge hole 3 is opened to discharge the deposited pollutants in the primary settling chamber 5 and the secondary settling chamber 9 .

Because the diameter of the connecting pipe 10 is too large, the pollutants floating on the water surface will flow into the secondary sedimentation chamber 9, which will affect the quality of rainwater purification. Preferably, in the above-mentioned embodiments of the present utility model, the diameter of the connecting pipe 10 is smaller than the Describe the diameter of the rainwater inlet pipe 2.

In addition, in the above embodiments of the present utility model, the top of the rainwater inlet pipe 2 is provided with a rain collecting groove 1 ; wherein, the area of the rain collecting groove 1 is larger than that of the rainwater inlet pipe 2 . By setting the rain gutter 1, the device of this embodiment can better collect rainwater.

Specifically, in the above embodiments of the present utility model, a cover 6 is provided above the secondary settling chamber, and the cover 6 seals and closes the secondary settling chamber when closed.

In addition, the cover can also be provided with an observation window 7, so that the internal conditions (such as water level) in the secondary settling chamber 9 can be observed.

In summary, the utility model has the following advantages:

The utility model has a certain storage volume, can effectively remove initial rainwater, and can also continuously filter and precipitate subsequent rainwater. The whole device has simple structure and high popularization degree.

The foregoing is a preferred embodiment of the present utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the present utility model. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (10)

1. A rainwater abandonment and treatment device, characterized in that it comprises: The primary settling chamber connected to the rainwater inlet pipe; A secondary settling chamber communicated with the primary settling chamber through a connecting pipe, the connecting pipe being located in the middle of the primary settling chamber; A drainage structure communicating with the secondary settling chamber. 2. The rainwater abandonment and treatment device according to claim 1, characterized in that: The rainwater inlet pipe is specifically communicated with the primary settling chamber through a ball float chamber; a float ball is provided in the ball float chamber, and its diameter is larger than that of the rainwater inlet pipe, so that the rainwater inlet pipe flows into the water in a unit time. When the rainwater is greater than a threshold, the floating ball closes the rainwater inlet pipe. 3. The rainwater abandonment and treatment device according to claim 2, characterized in that: The floating ball chamber is trapezoidal, its short side communicates with the rainwater inlet pipe, and its long side communicates with the primary settling chamber. 4. The rainwater abandonment and treatment device according to claim 2, characterized in that: The float is made of wood and/or plastic, which has a density less than that of water. 5. The rainwater abandonment and treatment device according to claim 2, wherein the drainage structure comprises: A drain pipe communicating with the secondary settling chamber; an overflow pipe connecting the water inlet to the water outlet of the drain pipe, the position of the water inlet of the overflow pipe is higher than that of the water inlet of the drain pipe; Wherein, the water inlet of the overflow pipe is also connected with the rainwater inlet pipe. 6. The rainwater abandonment and treatment device according to claim 5, characterized in that: Bottoms of the primary settling chamber and the secondary settling chamber are provided with mud discharge holes and vent valves. 7. The rainwater abandonment and treatment device according to claim 1, characterized in that: The diameter of the connecting pipe is smaller than that of the rainwater inlet pipe. 8. The rainwater abandonment and treatment device according to claim 1, characterized in that: The top of the rainwater inlet pipe is provided with a rain-collecting groove; wherein, the area of the rain-collecting groove is larger than that of the rainwater inlet pipe. 9. The rainwater abandonment and treatment device according to claim 1, characterized in that: A cover is provided above the secondary settling chamber, and the cover seals the secondary settling chamber when closed. 10. The rainwater abandonment and treatment device according to claim 9, characterized in that: The cover is provided with an observation window.