CN201053931Y - Water collection apparatus for water quality automatic monitoring station - Google Patents

Abstract

The utility model provides a special water collection equipment for the automatic monitoring station of water quality, which comprises a pump casing with a water inlet and a water outlet that can be fixed on the river bed or the river bank, and a water collection pipe connected with the water inlet of the pump casing through a universal turning joint. , the water pump installed in the pump casing, the tail end of the water collection pipe is floating on the water surface and there is a filter at a depth of 0.5 meters below the water surface, and one end of the water delivery pipe passes through the water outlet of the pump casing to communicate with the water pump outlet. The utility model is convenient to use, reliable in long-term operation and small in maintenance workload.

Description

Dedicated water collection equipment for automatic water quality monitoring stations

Technical field:

The utility model is related to the water harvesting equipment, in particular to the special water harvesting equipment for the water quality automatic monitoring station.

Background technique:

In order to monitor the pollution of rivers and rivers, many water quality automatic monitoring stations have been built across the country. The automatic water quality monitoring station needs to automatically collect water near the depth of 0.5 meters below the surface of the river throughout the year. Therefore, the builders of the water quality monitoring station have thought of many water harvesting methods and designed many water harvesting equipment. In summary, there are several methods such as pontoon method, pontoon method, and trestle method. The common point of the above methods is that the water pump (such as submersible pump, self-priming pump, etc.) is installed on a pontoon or buoy following the change of water level to achieve collection The purpose of the water near the depth of 0.5 meters below the water surface. Due to the complex conditions of the river water, large changes in water level, and the influence of factors such as sediment and floating objects in the water, many water harvesting equipment are not used well, or the maintenance workload is heavy.

Utility model content:

The purpose of the utility model is to provide a special water collection equipment for the water quality automatic monitoring station which is convenient to use, reliable in long-term operation, and small in maintenance workload.

The purpose of this utility model is achieved like this:

The utility model is a special water collection equipment for automatic water quality monitoring station, which includes a pump casing with a water inlet and a water outlet that can be fixed on the river bed or river bank, a water collection pipe connected to the water inlet of the pump casing through a universal turning joint, and one end connected to the pump casing. The water delivery pipe connected to the water outlet of the shell, the water pump installed in the pump casing, and the end of the water collection pipe float on the water surface by its own buoyancy or other upward force. The end of the water collection pipe is located at a depth of 0.5 meters below the water surface. The turning joint can be flexibly rotated in the horizontal direction and the vertical direction, which ensures that the tail end of the water collection pipe can freely float on the water surface.

The above-mentioned water harvesting equipment has a one-way sand discharge device installed on the pump casing. The sand discharge device is closed when the water pump pumps water, and the sand discharge device is opened during recoil to ensure that the sediment is discharged from the pump casing and the water collection pipe.

The above-mentioned sand remover includes a cylinder vertically installed in the pump casing, a piston located in the cylinder, a spring placed on the upper end of the piston, the upper end of the connecting column passes through the piston and is tightly pressed against the spring to pass through the lower end of the cylinder. For the sand discharge door equipped in the sand mouth, the upper and lower parts of the cylinder are respectively connected with the atmosphere and compressed air source through the atmospheric air pipe and the compressed air pipe. It moves downward under the action, and the sand discharge door connected with the piston is closed. After the sand discharge door is closed, the water in the pump casing can only enter and exit through the filter on the water collection pipe. After the sand discharge door is closed, the pumping operation can also be carried out. The water pipe recoils, if it is necessary to discharge sand, the compressed air enters the cylinder through the compressed air pipe, the piston moves from bottom to top under the action of the compressed air, and the sand discharge door connected to the piston opens, and the water and sand in the pump casing can pass through after the sand discharge door is opened. The sand discharge door enters and exits. After the sand discharge door is opened, the water and sand in the pump casing are discharged from the sand discharge door when the water collector is recoiled with compressed air.

In the above-mentioned water collection equipment, one end is installed on the pump casing and the protection tube which covers the water delivery pipe and the cable wire can resist the impact of the flood.

The above-mentioned water collection equipment has an air channel that is connected to the pump casing at one end and backwashes the water pump inlet and the water collection pipe through the compressed air. The compressed air can backwash the water pump inlet and the inside of the water collection pipe through the air pipe to ensure The long-term reliable operation of the equipment, and the use of air pipes are suitable for the situation where the bottom valve and check valve are installed inside the pump.

In the above-mentioned water collection equipment, one end is installed on the pump casing to cover the water delivery pipe, the cable wire and the air passage.

The above-mentioned water collection equipment has a frequency converter connected with the water pump to drive the water pump to work.

In the above-mentioned water collection equipment, an indicator light is installed at the end of the water collection pipe to meet the needs of river course management.

When the utility model is used, the pump casing is fixed or hung on the river bed or the river bank by the wire rope. In addition to having sufficient strength to resist the impact of floods, the universal swivel joint is also required to allow the water collection pipe to rotate flexibly in the horizontal and vertical directions under the condition of ensuring sealing. It is required that the sealing and flexibility of the universal swivel joint hardly change after long-term immersion and impact in river water. The water collection pipe lifts the tail end of the water collection pipe by buoyancy or other upward forces. As long as the upward force is greater than half of the water collection pipe's own weight, the water collection pipe tail end will float to the water surface. The tail end is also raised when the river water level is high, and the tail end is also low when the river water level is low, and the water collection pipe passes through the water layer at a depth of 0.5 meters below the water surface. When the water pump is running, the water near the depth of 0.5 meters below the water surface enters the water collection pipe from the filter, and then enters the pump casing. The water in the pump housing is pumped out by the pump, and goes through the water delivery pipe to the automatic water quality monitoring station for instrument analysis. There is silt in the river water. After running for a period of time, the water inlet and water collection pipe of the pump may be blocked by silt. Compressed air with a pressure of 0.3 to 0.8MPa can be used to backwash through the water delivery pipe and the pump. In order to have a better effect of recoil, a sand discharger can be installed on the pump casing. The sand discharger is installed in such a way that it is automatically closed when the pump pumps water and automatically opened when it is backwashed. Some water pumps are equipped with bottom valves or check valves. In this case, the recoil cannot be carried out through the water delivery pipe. Therefore, an air pipe is installed between the air source and the pump casing, and the compressed air directly enters the pump casing through this air pipe for flushing. Water pump inlet and water collection pipe. In order to protect the water pump, the water pump is driven by a frequency converter. For the needs of river management, an indicator light should be installed at the end of the water collection pipe.

The utility model is convenient to use, reliable in long-term operation and small in maintenance workload.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a top view of FIG. 1 .

Figure 3 is a schematic diagram of the structure of the sand discharger.

Figure 4 is a schematic diagram of the closing of the sand remover.

Fig. 5 is a schematic diagram of another structure of the utility model.

FIG. 6 is a top view of FIG. 5 .

Detailed ways:

Referring to Fig. 1 and Fig. 2, the special water harvesting equipment for the automatic water quality monitoring station of the utility model includes a steel pump casing 2 containing a water inlet 3 and a water outlet 4 fixed on the river bank 14 through a steel wire rope 1, and a universal turning joint 5. The water collection pipe 6 communicated with the pump casing water inlet, the water pump (submersible pump) 7 driven by the frequency converter installed in the pump casing, and one end of the water delivery pipe 8 passes through the pump casing water outlet and communicates with the water pump outlet. The tail end of the water collection pipe is located at a depth of 0.5 meters below the water surface. There is a filter 9, which is installed on the pump casing relative to the one-way sand discharge device 10 at the sand discharge port 16. One end is installed on the pump casing and the water delivery pipe and the cable wire The protective tube 12 of 11 claddings, the pilot lamp 13 is equipped with at the tail end of the water collection pipe. Number 15 in Fig. 1 is the bottom of the river. The direction indicated by the arrow in Figure 1 and Figure 2 is the direction of water flow.

Referring to Fig. 3 and Fig. 4, the sand remover includes a cylinder 17 vertically installed in the pump casing, a piston 18 located in the cylinder, a spring 19 placed on the upper end of the piston, and the upper end of the connecting column 20 passes through the piston and is tightly pressed against the spring. Pass through the lower end of the cylinder and the sand discharge door 21 fitted with the sand discharge outlet is equipped, and the upper and lower parts of the cylinder communicate with the atmosphere and the compressed air source through the atmospheric air pipe 22 and the compressed air pipe 23 respectively. Upper and lower ends of the cylinder are equipped with an upper seal 24 and a lower seal 25 respectively. Regularly opening the sand discharge door and backflushing the water collection equipment with compressed air can not only ensure the normal operation of the water collection equipment, but also discharge the sand in the pump casing in time, effectively solving the sand blocking problem of the water collection equipment. Ensure long-term reliable operation of water harvesting equipment.

Also as shown in Figure 5 and Figure 6, an air channel 26 with one end connected to the pump casing and reverse flushing of the water pump inlet and the water collection pipe can be provided, and one end of the protection tube 12 is installed on the pump casing to seal the water delivery pipe. and cable and air channel wrapping.

Claims (8)

1. The special water collection equipment for the automatic water quality monitoring station, which is characterized in that it includes a pump casing that can be fixed on the riverbed or river bank and contains a water inlet and a water outlet, and a water collection pipe that is connected to the water inlet of the pump casing through a universal turning joint. For the water pump in the pump casing, the end of the water collection pipe is floating on the water surface and there is a filter at a depth of 0.5 meters below the water surface. One end of the water delivery pipe passes through the water outlet of the pump casing and communicates with the water outlet of the water pump. 2. The special water harvesting equipment for automatic water quality monitoring station as claimed in claim 1, characterized in that there is a sand discharge port on the pump casing, and the one-way sand discharge device is located in the pump casing. 3. The special water harvesting equipment for automatic water quality monitoring station as claimed in claim 2, characterized in that the sand discharger includes a cylinder vertically installed in the pump casing, a piston located in the cylinder, a spring placed on the upper end of the piston, connected to The upper end of the column passes through the piston and presses against the spring tightly, and the lower end of the cylinder is equipped with a sand discharge door matched with the sand discharge port. 4. The special water harvesting equipment for automatic water quality monitoring station as claimed in claim 1, 2 or 3, characterized in that there is a protection tube with one end mounted on the pump casing and covering the water delivery pipe and the cable. 5. As claimed in claim 1 or 2 or 3, the special water collection equipment for the automatic water quality monitoring station is characterized in that there is an air channel that is connected to the pump casing and uses compressed air to backwash the water pump inlet and the water collection pipe . 6. The special water harvesting equipment for the automatic water quality monitoring station as claimed in claim 5, characterized in that there is a protection tube with one end mounted on the pump casing to cover the water delivery pipe, the cable and the air channel. 7. The special water harvesting equipment for automatic water quality monitoring station as claimed in claim 1, 2 or 3, characterized in that there is a frequency converter connected with the water pump to drive the water pump to work. 8. The special water collection equipment for automatic water quality monitoring station as claimed in claim 1, 2 or 3, characterized in that an indicator light is installed at the end of the water collection pipe.

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