CN107014644B - An urban pavement runoff collection system - Google Patents

Abstract

The invention discloses an urban pavement runoff collection system, which includes a runoff collection device, a rainfall collection device and a water quality parameter measuring device; the runoff collection device includes a collection dish installed under a well cover, and a water pump and a first sampling bottle are connected to the collection dish The rain collecting device includes a rain collecting dish, the rain collecting dish is provided with a bracket, the bottom center of the rain collecting dish is provided with a drain port, and a second sampling bottle is installed at the drain port; the water quality parameter measuring device includes a microcomputer, a microcomputer The first detection probe installed on the collecting dish and the second detection probe installed on the bottom of the rain collecting dish are connected to the top. By installing a collection dish under the well cover and a rainwater collection device on the road surface, the water pump can be used to take samples at any time, and the water quality can be monitored at any time through the detection probe, which avoids the process of opening the drainage well when testing the water quality of the runoff on the road surface, saving manpower and reducing costs. Affect municipal road traffic.

Description

An urban pavement runoff collection system

technical field

The invention relates to the technical field of environmental engineering, in particular to an urban pavement runoff collection system.

Background technique

In recent years, with the rapid development of the economy, the municipal transportation facilities are becoming more and more perfect, and the urban roads extend in all directions. While bringing convenience to people's daily life, it will also bring a series of negative impacts to the environment. Among them, more researches are The impact of traffic noise and motor vehicle exhaust, and road runoff as a potential source of water pollution have gradually attracted the attention of researchers. Due to the wear and tear of motor vehicle tires on urban roads, a large amount of pollutants that are extremely harmful to the environment, such as heavy metals, hydrocarbons, rubber, and fuel oil, will be released, and will migrate with surface runoff during rainfall or municipal leaching. Most of the pollutants in the water will eventually flow into the surface runoff under the action of natural settlement or rainwater erosion. Therefore, the investigation of the occurrence status of pollutants by collecting urban road surface runoff is very important for the objective evaluation of surface water environmental pollution. Theoretical significance, especially for the road sections along the way of vehicles transporting dangerous chemicals, the collection and investigation of road surface runoff is also an important basis for environmental risk assessment.

However, there is currently no collection device specially designed for urban pavement runoff. Most of the existing collection methods are manual sampling at municipal drainage wells. By opening the drainage well, using a simple container to hang the rope into it, and collecting the runoff that flows into the drainage well . In actual operation, there are the following problems:

(1) It takes manpower to open the drainage well, which seriously affects the traffic of municipal roads, and there is a great potential safety hazard.

(2) The road surface runoff is collected in the drainage well, and the collected samples are significantly affected by the channel environment in the drainage well, especially after contacting the residual sludge at the bottom of the well, the type and concentration of pollutants in the collected samples will change , objective authenticity is affected.

(3) It takes a long time to put in and take back the simple container, and the continuity of the sample collection process is poor.

(4) The variable water quality parameters of runoff cannot be measured during the collection process, such as temperature, pH and dissolved oxygen. These parameters usually have large errors due to changes in environmental factors when they are returned to the laboratory for measurement.

(5) Lack of collection of runoff source items, and no separate collection of rainfall or municipal wash water, which is not conducive to the final analysis of the final source of pollutants.

Contents of the invention

In view of the above problems, the object of the present invention is to provide an urban road surface runoff collection system with a simple structure, which is easy to use, has a high degree of automation, and saves labor.

In order to solve the existing problems in the background technology, the technical solution of the present invention is:

An urban pavement runoff collection system, comprising a runoff collection device, a rainfall collection device and a water quality parameter measuring device;

The runoff collection device includes a collection dish installed under the well cover, and a water pump and a first sampling bottle are connected to the collection dish;

The rain collecting device includes a rain collecting dish, the rain collecting dish is provided with a bracket, the bottom center of the rain collecting dish is provided with a drain port, and a second sampling bottle is installed at the drain port;

The water quality parameter measuring device includes a microcomputer, and the microcomputer is connected with a first detecting probe installed on the collecting dish and a second detecting probe installed at the bottom of the rain collecting dish.

Further preferably, the present invention provides an urban pavement runoff collection system, wherein:

The collection dish is fixed below the well cover through a trapezoidal fixing platform; a pipeline groove is opened on the central axis of the bottom of the trapezoidal fixing platform, and a fixed blind hole is opened in the center of the bottom, and the blind hole contains threads;

The collection dish is an inflatable collection dish, which is in the shape of a hemispherical shell after being filled with air. The center of the collection dish is a cylindrical structure, the cylindrical structure is covered with a protective sleeve, and the top of the cylindrical structure is provided with a valve core with a cover. The outer side of the covered valve core is provided with an external thread matched with the thread of the fixed blind hole;

A liquid suction port and a first detection probe are provided on the outside of the bottom of the protective sleeve, and a catheter is connected to the liquid suction port;

One end of the water pump is connected to the catheter through a plastic conduit, and the other end is connected to the first sampling bottle through a first adapter.

Further preferably, the present invention provides an urban pavement runoff collection system, wherein the first detection probe includes a first pH probe, a first temperature probe, and a first dissolved oxygen probe.

Further preferably, in the urban pavement runoff collection system provided by the present invention, the first transfer port contains internal threads, and the internal threads cooperate with the external threads on the top of the first sampling bottle.

Further preferably, the present invention provides an urban pavement runoff collection system, wherein the first sampling bottle is provided with a first scale, and the top of the first sampling bottle is provided with a first matching bottle cap.

Further preferably, the present invention provides an urban pavement runoff collection system, wherein the cover valve core is equipped with an air pump and an air needle for inflation and deflation.

Further preferably, in the urban pavement runoff collection system provided by the present invention, wherein the trapezoidal fixed platform is made of hard rubber, and the inflatable collection dish is made of polyethylene terephthalate PET plastic material become.

Further preferably, the present invention provides an urban pavement runoff collection system, wherein the rain collection dish is in the shape of a hemispherical shell, and the rain collection dish is connected to the second sampling bottle through a second transfer port, and the outside of the second transfer port is provided with The valve is switched on and off, the top of the second transfer port is connected to the liquid discharge port through threads, and the bottom of the second transfer port is connected to the second sampling bottle through threads.

Further preferably, in the urban pavement runoff collection system provided by the present invention, a second scale is provided outside the second sampling bottle, and a second matching bottle cap is provided on the top of the second sampling bottle.

Further preferably, the present invention provides an urban pavement runoff collection system, wherein the second detection probe is located on the bottom inner wall of the rain collection dish, and the second detection probe includes a second pH probe, a second temperature probe and a first Two dissolved oxygen probes.

Compared with the prior art, the beneficial effect of the present invention is: by setting the collection dish and the rainwater collection device on the road under the well cover, and the water pump can be used to extract and sample at any time, and the water quality can be monitored at any time through the detection probe, avoiding the rain on the road surface. The process of opening the drainage well during runoff water quality testing saves manpower and does not affect the traffic of municipal roads. It is safe and reliable. The collected samples are not affected by the channel environment in the drainage well. It has strong objective authenticity, strong continuity of the collection process, and a high degree of automation. The collection process can simultaneously measure and record the variable water quality parameters pH, temperature and dissolved oxygen. At the same time, the rainfall of the runoff source item is collected, which is convenient for later analysis of the final source of pollutants.

Description of drawings

Fig. 1 is the structural representation of urban pavement runoff collection system of the present invention;

Fig. 2 is a dismantled view of the runoff collection device in the urban pavement runoff collection system of the present invention;

Fig. 3 is a schematic structural view of the pump in the runoff collection device of the present invention;

Fig. 4 is a disassembled view of the rainfall collection device in the urban road surface runoff collection system of the present invention.

in:

1—Trapezoidal fixed platform; 1-1—Pipeline trough; 1-2—Fixed blind hole;

2—protective sleeve; 2-1—the first pH probe; 2-2—the first temperature probe;

2-3—the first dissolved oxygen probe; 2-4—suction port; 2-5—catheter;

3—collection dish; 3-1—valve core with cover; 4—water pump;

5—the first transfer interface; 6—the first sampling bottle; 6-1—the first scale scale;

6-2—the first matching bottle cap; 7—rainfall collection dish; 7-1—liquid outlet;

7-2—the second pH probe; 7-3—the second temperature probe; 7-4—the second dissolved oxygen probe;

8—Second adapter; 8-1—Switch valve; 9—Second sampling bottle;

9-1—the second scale scale; 9-2—the second matching bottle cap; 10—bracket;

11—microcomputer; 12—inflator; 12-1—air needle.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the present invention provides a kind of urban pavement runoff collection system, comprises runoff collection device, rainfall collection device and water quality parameter measuring device;

The runoff collection device includes a collection dish 3 installed under the well cover, and the collection dish 3 is connected with a water pump 4 and a first sampling bottle 6;

The rainfall collecting device comprises a rain collecting dish 7, a support 10 is arranged on the rain collecting dish 7, a drain port 7-1 is provided at the center of the bottom of the rain collecting dish 7, and a second sampling bottle 9 is installed out of the drain port 7-1;

The water quality parameter measuring device includes a microcomputer 11, and the microcomputer 11 is connected with a first detecting probe installed on the collecting pan 3 and a second detecting probe installed at the bottom of the rain collecting pan 7 .

Specifically, as shown in Figure 2, the collection vessel 3 is fixed below the well cover through the trapezoidal fixing platform 1; the bottom central axis of the trapezoidal fixing platform 1 is provided with a pipeline groove 1-1, and the bottom center is provided with a fixed blind hole 1-2, fixed blind hole 1-2 contains threads;

The collection dish 3 is an inflatable collection dish. The collection dish 3 is in the shape of a hemispherical shell after being filled with gas. The center of the collection dish 3 is a cylindrical structure, and the protective sleeve 2 is set on the cylindrical structure. Valve core 3-1, the outer side of the covered valve core 3-1 is provided with an external thread that matches the thread of the fixed blind hole 1-2; to achieve the purpose of rotating, tightening and fixing, as shown in Figure 3, the cover The valve core 3-1 is equipped with an air pump 12 and an air needle 12-1 for performing inflation and deflation operations.

A liquid suction port 2-4 and a first detection probe are provided on the outside of the bottom of the protective sleeve 2, and a catheter 2-5 is connected to the liquid suction port 2-4;

One end of the water pump 4 is connected to the catheter 2-5 through a plastic conduit, and the other end is connected to the first sampling bottle 6 through the first transfer port 5 . The first transfer port 5 contains threads, and the threads are used in conjunction with the threads on the outside of the top of the first sampling bottle 6 to achieve the purpose of rotating, tightening and fixing. The first sampling bottle 6 is provided with a first scale scale 6-1, the top of the first sampling bottle 6 is provided with a first matching bottle cap 6-2.

Preferably, the first detection probe includes a first pH probe 2-1, a first temperature probe 2-2, and a first dissolved oxygen probe 2-3, which can simultaneously measure and record pH, temperature and dissolved oxygen parameters of variable water quality parameters. oxygen.

As shown in Figure 4, the rain collecting dish 7 is in the shape of a hemispherical shell, the outside of the bottom of the rain collecting dish 7 is provided with the bracket 10, which is used for the fixed placement of the whole device, and the rain collecting dish 7 passes through the second adapter 8 is connected with the second sampling bottle 9, and a switch valve 8-1 is provided on the outside of the second transfer port 8, which can control the switch of the second transfer port 8, and the top of the second transfer port 8 is threaded and connected to the liquid outlet 7 -1, and the bottom of the second transfer port 8 is connected to the second sampling bottle 9 through threads. The outside of the second sampling bottle 9 is provided with a second scale 9-1 for easy viewing of the volume, and the top of the second sampling bottle 9 is provided with a second matching bottle cap 9-2. The second detection probe is located on the bottom inner wall of the rainfall collection vessel 7, and the second detection probe includes a second pH probe 7-2, a second temperature probe 7-3 and a second dissolved oxygen probe 7-4.

The first pH probe 2-1, the first temperature probe 2-2, the first dissolved oxygen probe 2-3, the second pH probe 7-2, the second temperature probe 7-3 and the second dissolved oxygen probe 7- 4 is connected with the microcomputer 11 through a data line.

It should be noted that, in this embodiment, the trapezoidal fixing table 1 is made of hard rubber; The collection dish 7, the second transfer port 8, the switch valve 8-1, the support 10 and the air needle 12-1 are made of stainless steel; the inflatable collection dish 3, the first sampling bottle 6, the first supporting bottle cap 6-2, The second sampling bottle 9 and the second matching bottle cap 9-2 are all polyethylene terephthalate (PET) plastic materials; The second scale scale 9-1 is made of acrylonitrile-butadiene-styrene (ABS) plastic.

Working principle of the present invention is:

Set up the device at the drainage well position at the target road section before the rain. First, insert the inflatable collection dish into the gap of the drainage well cover, and use the special pump 12 and the air needle 12-1 to perform the inflation operation for the cover valve core 3-1. , after being fully inflated, the inflatable collection dish is fully expanded to maintain the hemispherical shell configuration; then the protective sleeve 2 is placed on the central cylinder of the inflatable collection dish, ensuring that the end connected to the liquid suction port 2-4 faces downward; after that, Tighten and fix the covered valve core 3-1 and the fixed blind hole 1-2 through threads, arrange the plastic conduit connected to the catheter 2-5, and the first pH probe 2-1, the first temperature probe 2- 2 The data line connected to the first dissolved oxygen probe 2-3 is arranged so that one end thereof is placed in the pipeline groove 1-1, and the trapezoidal fixing table 1 is horizontally placed on the drainage manhole cover along the direction of the hypotenuse, so as not to affect the normal passage of vehicles;

Then the other end of the plastic conduit is connected with the entrance of the small water pump 4, the first sampling bottle 6 is connected with the small water pump 4 through the first adapter 5, the other end of the data line is connected with the microcomputer 11, and the small Water pump 4, the first sampling bottle 6 and microcomputer 11 are placed in the safety position on the crosswalk;

Finally, the second sampling bottle 9 is connected to the liquid discharge port 7-1 through the second adapter 8, the switch valve 8-1 is closed, and the second pH probe 7-2 and the second temperature probe 7-3 are connected through the data line With the second dissolved oxygen probe 7-4 and the microcomputer 11, the whole rainfall collection device is placed in a safe position on the pedestrian crossing through the support 10, and the debugging of the whole device is completed after checking the connection of each probe through the computer adjustment.

When it rains, the road surface runoff flows into the gap of the drainage manhole cover, enters the inflatable collection dish for temporary storage, turns on the switch of the small water pump 4 to make it work for suction, and the temporarily stored runoff enters the catheter through the suction port 2-4 2-5 and finally enter the first sampling bottle 6 along with the plastic conduit, pay attention to observe the first scale scale 6-1, turn off the switch of the small water pump 4 after the liquid level reaches the specified sampling volume, and unload the first sampling bottle 6, After the first supporting bottle cap 6-2 is tightly closed, the runoff sample collection is completed. If continuous collection is required, just replace the new first sampling bottle 6 and repeat the above steps; via the first pH probe 2-1, the first temperature The runoff water quality data temporarily stored in the inflatable collection dish measured by the probe 2-2 and the first dissolved oxygen probe 2-3 is transmitted to the microcomputer 11 for recording through the data line; rainwater is collected during the runoff collection process, and the rainwater Temporarily stored in the rainfall collection vessel 7, submerged in the second pH probe 7-2, the second temperature probe 7-3 and the second dissolved oxygen probe 7-4, the measured rainwater quality data is transmitted to the microcomputer 11 through the data line Record, open the switch valve 8-1 to adjust to a suitable flow rate, the temporarily stored rainwater enters the second sampling bottle 9, pay attention to observe the second scale scale 9-1, close the switch valve 8-1 after the liquid level reaches the specified sampling volume, and discharge The second sampling bottle 9 is lowered, and the collection of the rainwater sample is completed after the second supporting bottle cap 9-2 is tightly closed. If the collection is to be carried out continuously, just replace the second sampling bottle 9 with a new one and repeat the above steps; , according to the above steps to disassemble the relevant instruments, wherein, the inflatable collection dish can be deflated by inserting the air needle 12-1, and then taken out from the gap of the drainage manhole cover.

For those skilled in the art, it is obvious that the above-mentioned specific embodiments are only preferred solutions of the present invention, so those skilled in the art may make improvements and changes to some parts of the present invention, which still reflect the present invention The principle of the present invention is still the object of the present invention, and all belong to the protection scope of the present invention.

Claims (8)

1. The urban road surface runoff collection system is characterized by comprising a runoff collection device, a rainfall collection device and a water quality parameter measurement device;

the runoff collection device comprises a collection vessel (3) arranged below the well lid, and the collection vessel (3) is connected with a water pump (4) and a first sampling bottle (6);

the rainfall collecting device comprises a rainfall collecting dish (7), a bracket (10) is arranged on the rainfall collecting dish (7), a liquid outlet (7-1) is arranged in the center of the bottom of the rainfall collecting dish (7), and a second sampling bottle (9) is arranged at the outlet of the liquid outlet (7-1);

the water quality parameter measuring device comprises a microcomputer (11), wherein the microcomputer (11) is connected with a first detecting probe arranged on the collecting vessel (3) and a second detecting probe arranged at the bottom of the rainfall collecting vessel (7);

the collecting dish (3) is fixed below the well lid through the trapezoid fixing table (1); a pipeline groove (1-1) is formed in the central axis of the bottom of the trapezoid fixing table (1), a fixing blind hole (1-2) is formed in the center of the bottom, and threads are contained in the fixing blind hole (1-2);

the collecting vessel (3) is an inflatable collecting vessel, the collecting vessel (3) is in a hemispherical shell shape after being filled with air, the center of the collecting vessel (3) is of a cylindrical structure, a protective sleeve (2) is sleeved on the cylindrical structure, a valve core (3-1) with a cover is arranged at the top of the cylindrical structure, and external threads matched with the threads of the fixed blind hole (1-2) are arranged on the outer side of the valve core (3-1) with the cover;

the outer side of the bottom of the protective sleeve (2) is provided with a liquid suction port (2-4) and a first detection probe, and the liquid suction port (2-4) is connected with a liquid guide tube (2-5);

one end of the water suction pump (4) is connected with the liquid guide pipe (2-5) through a plastic pipe, and the other end of the water suction pump is connected with the first sampling bottle (6) through a first transfer port (5);

the rainfall collection dish (7) is of a hemispherical shell shape, the rainfall collection dish (7) is connected with a second sampling bottle (9) through a second rotating interface (8), a switch valve (8-1) is arranged on the outer side of the second rotating interface (8), the top of the second rotating interface (8) is connected with a liquid outlet (7-1) through threads, and the bottom of the second rotating interface (8) is connected with the second sampling bottle (9) through threads.

2. Urban road surface runoff collection system according to claim 1, characterized in that the first detection probe comprises a first pH probe (2-1), a first temperature probe (2-2), and a first dissolved oxygen probe (2-3).

3. Urban road surface runoff collection system according to claim 1, characterized in that said first adapter (5) comprises a thread, said thread being used in cooperation with a thread on the outside of the top of the first sampling bottle (6).

4. Urban road surface runoff collection system according to claim 1, characterized in that the first sampling bottle (6) is provided with a first scale (6-1), the top of the first sampling bottle (6) being provided with a first mating bottle cap (6-2).

5. Urban road surface runoff collection system according to claim 1, characterized in that said cover valve core (3-1) is equipped with an inflator (12) and an air needle (12-1) for performing the inflation and deflation operations.

6. Urban road surface runoff collection system according to claim 1, characterized in that said trapezoidal fixed table (1) is made of hard rubber material and said inflatable collection dish is made of polyethylene terephthalate (PET) plastic material.

7. Urban road surface runoff collection system according to claim 1, characterized in that the second sampling bottle (9) is provided with a second graduated scale (9-1) outside, the top of the second sampling bottle (9) being provided with a second mating bottle cap (9-2).

8. Urban road surface runoff collection system according to claim 1, characterized in that the second detection probe is located at the bottom inner wall of the rainfall collection dish (7), comprising a second pH probe (7-2), a second temperature probe (7-3) and a second dissolved oxygen probe (7-4).

Images