Siphon type laboratory water tank sand pumping device

Abstract

A siphoning type laboratory water tank sand pumping device comprises a laboratory water tank, a sand collecting box, a siphon and a circulating water device. The laboratory water tank is filled with water and sand / mud precipitated in the water; a porous supporting plate is arranged in the sand collecting box, the sand collecting box is divided into two containing parts by the porous supporting plate, and a stainless steel filter screen is fixed to the side portion of the porous supporting plate; an inlet of the siphon is arranged below the liquid level of water, and an outlet of the siphon extends into one accommodating part of the sand collecting box; a water inlet pipe of the circulating water device extends into the other accommodating part of the sand collecting box, and an outlet of a water outlet pipe is arranged below the liquid level of water and extends into sand / mud; the water inlet pipe is further communicated with the siphon through a connecting pipe, a water inlet valve is arranged on the water inlet pipe, and a connecting valve is arranged on the connecting pipe. And a water stop valve is arranged on the siphon.

Description

Technical Field

[0001] The present utility model relates to the technical field of laboratory sink sand pumping, and particularly relates to a siphon type laboratory sink sand pumping device. Background Art

[0002] With the continuous development of social economy, environmental problems are becoming more and more serious. Prominent water environment problems not only affect the development of social economy, but also affect people's life and health. In recent years, disciplines such as hydraulics and environmental science have been continuously cross - integrated, and problems such as the water - sediment interface problem and the riverbed bottom - sediment environment have received more and more attention. In the development process of hydraulics, flume experiments play a crucial role. Flume experiments often require dyeing, adding drugs, etc. to sand / mud. After the experiment, it is necessary to pump out the sand / mud in the flume and then clean it and add drugs. Therefore, how to efficiently and labor - savingly remove the sand / mud in the flume will directly relate to the experimental efficiency.

[0003] At present, the main method for pumping and discharging sediment in laboratory flumes is to manually dig out the sand / mud in the flume after the water in the flume is drained. Although this method is easy to operate, it requires a large amount of labor cost. For three - dimensional large flumes, the investment in labor cost will be huge. For two - dimensional flumes, the narrow operation space is the main factor restricting this method. In addition, a sand pump is another option, but it is difficult to miniaturize the sand pump for laboratory use, and it is difficult to adapt to various different sands / muds during use.

[0004] In summary, there is an urgent need for a technology to solve such problems in the existing technology. Content of the Utility Model

[0005] In order to solve the above problems, the present utility model provides a siphon type laboratory sink sand pumping device, which can efficiently and labor - savingly remove the sand / mud in the flume.

[0006] The technical solution of the present utility model is as follows:

[0007] A siphon type laboratory sink sand pumping device includes a laboratory sink, a sand collecting box, a siphon pipe and a circulating water device;

[0008] The laboratory sink is filled with water and sand / mud precipitated in the water;

[0009] The sand collecting box is provided with a porous support plate. The sand collecting box is separated into two accommodating parts by the porous support plate, and a stainless - steel filter screen is fixed on the side of the porous support plate;

[0010] The inlet of the siphon pipe is placed below the liquid level of the water, and the outlet extends into one of the accommodating parts of the sand collecting box;

[0011] The inlet pipe of the circulating water device extends into another accommodating part of the sand collecting box, and the outlet of the outlet pipe is placed below the liquid level of the water and extends into the sand / mud;

[0012] The inlet pipe is also communicated with a siphon through a connecting pipe. An inlet valve is arranged on the inlet pipe, and a connecting valve is arranged on the connecting pipe;

[0013] A water stop valve is arranged on the siphon.

[0014] Further, the circulating water device is a centrifugal pump. The centrifugal pump is fixed on the sand collecting box, and a power regulator is equipped on the centrifugal pump.

[0015] Further, positioning clips are fixedly arranged on the inner wall of the laboratory sink, and the positioning clips are crimped with the part of the outlet pipe extending into the laboratory sink.

[0016] Further, a nozzle for stirring the sand / mud is arranged at the outlet of the outlet pipe.

[0017] Preferably, the nozzle is a rotary nozzle or a high-pressure nozzle.

[0018] Further, the porous support plate is fixedly connected to the sand collecting box.

[0019] Further, the porous support plate is movably connected to the sand collecting box. A receiving groove is formed on the inner wall of the sand collecting box, and the porous support plate is inserted into the receiving groove.

[0020] Further, a horn-shaped sand / mud suction head is arranged at the inlet of the siphon.

[0021] Further, the siphon has an inverted U-shaped structure, including a section of flexible pipe and two sections of rigid pipes fixedly connected to both ends of the flexible pipe.

[0022] Further, a lifting leg composed of a telescopic rod and a support plate is fixedly connected to the bottom of the laboratory sink.

[0023] The utility model adopting the above technical scheme can achieve the following beneficial effects:

[0024] 1) Utilize the centrifugal water pump to drive the water body in the pipeline system to flow to form a siphon, and use the siphon effect to pump out the sand / mud in the water tank, which finally gathers in the sand collecting box and discharges the water body. Only the centrifugal water pump needs to be driven by electricity during the process, and the energy consumption is extremely low;

[0025] 2) The sand / mud suction head can be replaced with different sizes according to the requirements of the sand / mud particle size, and finally the pumping and discharging of sand and mud with different particle sizes can be completed, with strong adaptability;

[0026] 3) The nozzle can be replaced with a rotary nozzle or a high-pressure nozzle. The conventional nozzle can stir the flowing sand / mud, while the rotary nozzle and the high-pressure nozzle can stir the dense sand / mud.

[0027] 4) The extraction of sand / mud mainly relies on the siphon principle, which is easy to operate, saves labor costs and energy. Description of the Drawings

[0028] Figure 1 It is a structural schematic diagram of the present utility model.

[0029] In the figure, 1 - laboratory sink, 2 - sand collection box, 3 - siphon, 4 - circulating water device, 5 - connecting pipe, 6 - positioning clamp, 7 - nozzle, 11 - water, 12 - sand / mud, 21 - porous support plate, 22 - stainless steel filter screen, 31 - hose, 32 - hard pipe, 33 - water stop valve, 34 - sand / mud suction head, 41 - water inlet pipe, 42 - water outlet pipe, 43 - water inlet valve, 51 - connecting valve. Detailed Embodiment

[0030] As Figure 1 shown, a siphon-type laboratory sink sand extraction device includes a laboratory sink 1, a sand collection box 2, a siphon 3 and a circulating water device 4; water 11 and sand / mud 12 precipitated in the water 11 are installed in the laboratory sink 1, and lifting legs composed of telescopic rods and support plates are fixedly connected to the bottom, and the height of the laboratory sink 1 from the ground can be adjusted through the lifting legs; the sand collection box 2 can be placed on the ground, and there should be a certain height difference between it and the laboratory sink 1. A porous support plate 21 is arranged in the sand collection box 2. The connection mode between the porous support plate 21 and the sand collection box 2 can be a fixed connection or a detachable connection. When the detachable connection mode is adopted, a receiving groove can be opened on the inner wall of the sand collection box 2, and the porous support plate 21 is inserted into the receiving groove, and a stainless steel filter screen 22 is fixed on the side of the porous support plate 21. The sand collection box 2 is divided into two receiving parts by the porous support plate 21. One of the receiving parts is used to install the solid-liquid mixture of water 11 and sand / mud 12 extracted by the siphon 3 through siphon action, and the other receiving part is used to install the clear water filtered by the stainless steel filter screen 22 to supply the circulating water device 4 to extract and use for stirring the sand / mud 12 precipitated in the laboratory sink 1, so as to facilitate the extraction operation of the siphon 3.

[0031] Specifically, the siphon 3 has an inverted U-shaped structure, including a section of flexible hose 31 and two sections of rigid pipes 32 fixedly connected to both ends of the flexible hose. The setting of the flexible hose 31 facilitates the adjustment of the angle. The inlet of the siphon 3 is placed below the liquid level of the water 11, and the outlet extends into the sand collection box 2 and is located inside the accommodating part for the solid-liquid mixture of the water 11 and the sand / mud 12. A horn-shaped sand / mud suction head 34 is provided at the inlet of the siphon 3. The sand / mud suction head 34 is preferably connected to the inlet of the siphon 3 in a detachable manner, which can be specifically achieved through threaded connection or quick connectors. Through the sand / mud suction head 34, a larger suction range can be created to accelerate the entire extraction operation.

[0032] The circulating water device 4 can be a centrifugal pump. The centrifugal pump is fixed on the sand collection box 2. A support plate can be fixed on the upper part of the sand collection box 2, and the centrifugal pump is fixed on the support plate. The centrifugal pump can also be equipped with a power regulator to enable the centrifugal pump to operate under a lower energy consumption state. One end of the water inlet pipe 41 extends into the accommodating part in the sand collection box 2 for containing the filtered clear water, and the other end is connected to the water inlet of the centrifugal pump. One end of the water outlet pipe 42 is connected to the water outlet of the centrifugal pump, and the outlet of the other end is placed below the liquid level of the water 11 and extends into the sand / mud 12. A positioning clip 6 can be fixedly arranged on the inner wall of the laboratory water tank 1, and the part of the water outlet pipe 42 extending into the laboratory water tank 1 is clamped and fixed by the positioning clip 6. A spray head 7 for agitating the sand / mud 12 is provided at the outlet of the water outlet pipe 42 extending into the sand / mud 12. The spray head 7 can be a rotary spray head or a high-pressure spray head.

[0033] Among them, the water inlet pipe 41 is also communicated with the siphon 3 through a connecting pipe 5. On the one hand, the connecting pipe 5 plays a role in supporting and positioning the siphon 3. On the other hand, the water that initially generates the siphon effect is also transported into the siphon 3 through the connecting pipe 5. A water inlet valve 43 is provided on the water inlet pipe 41, and a connecting valve 51 is provided on the connecting pipe 5. The water inlet valve 43 is arranged at a position below the connection between the water inlet pipe 41 and the connecting pipe 5.

[0034] A water stop valve 33 is provided on the siphon 3, and the water stop valve 24 is preferably arranged at a position below the connection between the connecting pipe 5 and the siphon 3.

[0035] The working principle of the present invention is briefly described as follows:

[0036] First, close the water stop valve 33 and the water inlet valve 43, open the connecting valve 51, and start the centrifugal pump. The siphon 3 and the circulating water device 4 form a loop, and the siphon effect is formed. Then close the connecting valve 51, open the water stop valve 33 and the water inlet valve 43, and the siphon-type sand extraction device for the laboratory water tank starts to work. The sand / mud 12 is filtered out and left in the sand collection box 2 until the power of the centrifugal pump is turned off after the operation is completed.

[0037] The above are only the preferred specific embodiments of the present utility model and do not limit the present utility model. Any equivalent replacement and modification made by any person skilled in the art without departing from the guidance of the present utility model shall be regarded as falling within the protection scope of the present utility model.

Claims

1. A siphon-type laboratory water tank sand extraction device, characterized in that: It comprises a laboratory water tank (1), a sand collecting box (2), a siphon (3) and a circulating water device (4); The laboratory water tank (1) is filled with water (11) and sand / mud (12) settled in the water (11); A porous support plate (21) is arranged in the sand collecting box (2), the sand collecting box (2) is divided into two containing parts by the porous support plate (21), and a stainless steel filter screen (22) is fixed to the side of the porous support plate (21); The inlet of the siphon tube (3) is placed below the liquid level of the water (11), and the outlet extends into a receiving portion of the sand collecting box (2); The water inlet pipe (41) of the circulating water device (4) extends into another accommodating portion of the sand collecting box (2), and the outlet of the water outlet pipe (42) is placed below the liquid level of the water (11) and penetrates into the sand / mud (12); The water inlet pipe (41) is also connected to the siphon pipe (3) via a connecting pipe (5); a water inlet valve (43) is provided on the water inlet pipe (41); and a connecting valve (51) is provided on the connecting pipe (5); The siphon tube (3) is provided with a water stop valve (33).

2. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: The circulating water device (4) is a centrifugal pump, which is fixed on the sand collecting box (2) and is equipped with a power regulator.

3. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: A positioning clamp (6) is fixedly arranged on the inner wall of the laboratory water tank (1), and the positioning clamp (6) is crimped to the portion of the water outlet pipe (42) extending into the laboratory water tank (1).

4. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: A nozzle (7) for stirring the sand / mud (12) is provided at the outlet of the water outlet pipe (42).

5. A siphon-type laboratory water tank sand extraction device according to claim 4, characterized in that: The nozzle (7) is a rotary nozzle or a high-pressure nozzle.

6. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: The porous support plate (21) and the sand collecting box (2) are fixedly connected.

7. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: The porous support plate (21) is movably connected to the sand collecting box (2); a receiving groove is provided on the inner wall of the sand collecting box (2), and the porous support plate (21) is inserted into the receiving groove.

8. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: A trumpet-shaped sand / mud suction head (34) is provided at the inlet of the siphon tube (3).

9. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: The siphon (3) is an inverted U-shaped structure, comprising a section of soft tube (31) and two sections of hard tube (32) fixedly connected to both ends of the soft tube.

10. A siphon-type laboratory water tank sand extraction device according to claim 1, characterized in that: The bottom of the laboratory water tank (1) is fixedly connected with a lifting leg consisting of a telescopic rod and a supporting plate.

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