CN204973180U - Automatic sample flocculation and precipitation experimental apparatus - Google Patents

Abstract

The utility model discloses an automatic sampling flocculation sedimentation experiment device. The technical scheme of the utility model is mainly composed of a water inlet system, a sedimentation system and a control system. The water inlet system includes a water tank, a water pump, a flow meter and a mixer installed above the water tank that are sequentially connected through pipelines; The system includes at least one sedimentation column with a diameter not less than φ120×2000mm. The lower end of the sedimentation column is provided with a water inlet valve and connected to the outlet of the flowmeter through a pipeline. A set of sampling ports are set on the body of the sedimentation column. Sampling valve; the control system includes an electrical control box, a leakage protector, a motor governor, a timer/controller, and an operation switch, which provides power for the target system and controls the power device of the target system through operation.

Description

An automatic sampling flocculation sedimentation experimental device

technical field

The invention relates to a comprehensive automatic flocculation-sedimentation experimental device widely applicable to experimental teaching in middle and higher vocational schools and undergraduate colleges.

Background technique

At present, the sedimentation devices used in water treatment teaching, such as free sedimentation and flocculation sedimentation, are mostly manual sampling. In the experiment, not only many students are required to cooperate to complete the experiment, but the sampling time point cannot be accurately guaranteed, resulting in large experiment error.

Contents of the invention

In order to overcome the above-mentioned technical defects, the present invention provides an automatic sampling flocculation and sedimentation experimental device.

The technical solution of the utility model is mainly composed of a water inlet system, a sedimentation system and a control system. The water inlet system includes a water tank, a water pump, a flow meter and a mixer installed above the water tank sequentially connected by pipelines; The system includes at least one sedimentation column with a diameter of not less than φ120×2000mm. The lower end of the sedimentation column is provided with a water inlet valve, and is connected to the water outlet of the flowmeter through a pipeline. A set of sampling ports are set on the body of the sedimentation column. Sampling valve; the control system includes an electrical control box, an electric leakage protector, a motor governor, a timer/controller, and an operation switch, which provides power for the target system and controls the power device of the target system through operation.

The automatic sampling flocculation sedimentation experimental device is characterized in that: an overflow hole is arranged at the upper end of the sedimentation column, and a pipe is arranged on the overflow hole to connect with the water tank.

The automatic sampling flocculation and sedimentation experimental device is characterized in that: the pipeline is made of stainless steel composite pipe and hard pipe.

The automatic sampling flocculation sedimentation experimental device is characterized in that four sampling ports are provided on the sedimentation column, and are connected to a uniform sampling area by pipelines.

The described automatic sampling flocculation and sedimentation experimental device is characterized in that: the timing/controller can perform "manual/automatic" switching control. When manual sampling is adopted, the timing/controller is used for timing; when automatic sampling mode is adopted, timing / The controller has three modes to choose from, which are simultaneous equal interval mode, simultaneous unequal interval mode and delay unequal interval mode.

The automatic sampling flocculation sedimentation experimental device is characterized in that: the sedimentation column is composed of a first sedimentation column and a second sedimentation column connected in parallel through pipelines.

Compared with the prior art, the present invention adopting the above-mentioned technical solution has the advantages of realizing full automation of experiments, accurate sampling, reducing experimental errors caused by human operation during sampling, and making experimental data more accurate. At the same time, the water tank is made of corrosion-resistant material; the two sedimentation columns are made of transparent material, which is convenient for observing experimental phenomena. In addition, the main transparent sedimentation column and water tank are fixed on the steel frame with casters, which has a compact structure and is easy to move. The pipes used are mainly stainless steel composite pipe hard pipe and PU tracheal hose. The stainless steel composite pipe is mainly made of PVC plastic outsourcing stainless steel inside, which can not only achieve corrosion resistance but also ensure firmness and durability. PU tracheal hose is equipped with quick connectors Easy to use and connect. With this set of equipment, students do not need to spend too much time on sampling, and can concentrate on observing the precipitation phenomenon in the sedimentation column, and understand the precipitation law and precipitation characteristics. It can also exercise students' understanding of the experimental operation process of flocculation and sedimentation, and deepen their understanding of basic concepts. To sum up, the equipment can be better applied to the current experimental teaching of environmental engineering and other related majors.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is a system flow chart of the present invention;

Fig. 2 is timing/controller structure of the present invention;

Fig. 3 is a panel view of the control system of the present invention.

detailed description

As shown in Figure 1, the automatic sampling flocculation and sedimentation experimental device of the present invention includes three parts: a water inlet system, a sedimentation system and a control system. Described comprises the water tank 1 that connects successively through pipeline, water pump 4, flowmeter 6 and the mixer 2 that is installed on the top of the water tank. A water inlet valve 3 is arranged on the pipeline between the water tank 1 and the water pump 4 , and a flowmeter regulating valve 5 is arranged on the pipeline between the water pump 4 and the flowmeter 6 . The sedimentation system includes a first sedimentation column 8 and a second sedimentation column 9, the diameter of which is not less than φ120×2000mm, ideally φ120×2000mm, the lower ends of the first sedimentation column 8 and the second sedimentation column 9 are respectively set A water inlet valve 16, a second water inlet valve 21, on the first water inlet valve 16, the second water inlet valve 21, pipes are arranged to connect with the water outlet of the flow meter 6. Four sampling ports are respectively set on the first settling column 8 and the second settling column 9, and the first sampling valve 12, the second sampling valve 13, and the third sampling valve 14 are respectively set on the sampling ports of the first settling column 8. , the fourth sampling valve 15, the fifth sampling valve 17, the sixth sampling valve 18, the seventh sampling valve 19, and the eighth sampling valve 20 are respectively arranged on the second sedimentation column 9. And use PU trachea hose to connect to a unified fixed sampling area, which is convenient for placing the sampling container, and the PU trachea hose is equipped with a quick connector for easy connection. The control system is mainly composed of an electrical control box, a leakage protector, a motor speed controller, a timing/controller, an operation switch and a working status indicator light, etc., which provide power for the target system and control the power components of the target system through operation .

In order to further optimize the above solution, an overflow hole 11 is arranged at the upper end of the settling column, and a pipe is arranged on the overflow hole 11 to connect with the water tank 1 . When the water in the sedimentation column is full, it will flow back to the water tank 1 through the overflow hole 11. The pipeline is made of stainless steel composite pipe and hard pipe. The stainless steel composite pipe is mainly made of PVC plastic outsourcing stainless steel inside, which can not only achieve anti-corrosion but also ensure firmness and durability.

As shown in Figure 3 control system panel diagram, it is mainly composed of electrical control box, leakage protector, motor speed governor, timing/controller, operation switch and working status indicator light. As shown in Figure 2 timing/controller, you can press the function key and , key to select the working mode. The timing/controller can be used for "manual/automatic" switching control. When using manual sampling, the timing/controller can be used for timing; when using automatic sampling mode, the timing/controller has three modes to choose from, which are simultaneous and equal interval modes , Simultaneous unequal interval mode and delay unequal interval mode, and there is an alarm sound reminder at the end of sampling.

Finally, it should be pointed out that the above description is illustrative rather than restrictive to the present invention, and those of ordinary skill in the art understand that many modifications, Changes or equivalent structures will fall within the scope defined by the claims of the present invention.

Claims (6)

1. An automatic sampling flocculation and sedimentation experimental device is characterized in that: it is mainly composed of a water inlet system, a sedimentation system and a control system, and the water inlet system includes water tanks (1) and water pumps (4) connected in sequence by pipelines ), a flow meter (6) and a mixer (2) installed above the water tank; the sedimentation system includes at least one sedimentation column with a diameter not less than φ120×2000mm, and the lower end of the sedimentation column is provided with a water inlet valve, and through the pipeline It is connected to the water outlet of the flowmeter (6), and a set of sampling ports are set on the body of the sedimentation column, and a sampling valve is set on the sampling port; the control system includes an electrical control box, a leakage protector, a motor governor, a timing/control Devices and operating switches provide power for the target system and control the power devices of the target system through operation. 2. The automatic sampling flocculation and sedimentation experimental device according to claim 1, characterized in that: the upper end of the sedimentation column is provided with an overflow hole (11), and the overflow hole (11) is provided with a pipe and a water tank (1) connect. 3. The automatic sampling flocculation and sedimentation experimental device according to claim 1, characterized in that: the pipeline is made of stainless steel composite pipe and hard pipe. 4. The automatic sampling flocculation-sedimentation experimental device according to claim 1, characterized in that: four sampling ports are provided on the settling column, and are connected to a unified sampling area by pipelines. 5. automatic sampling flocculation sedimentation experimental device according to claim 1, is characterized in that: described timing/controller can carry out " manual/automatic " switching control, when adopting manual sampling, timing/controller is used for timing; Adopt In the automatic sampling mode, the timer/controller has three modes, which are simultaneous equal interval mode, simultaneous unequal interval mode and delay unequal interval mode. 6. The automatic sampling flocculation and sedimentation experimental device according to any one of claims 1 to 5, characterized in that: the settling column is composed of a first settling column (8) and a second settling column (9) connected in parallel through pipelines composition.