CN105401651A - Double-tube type integrated pump station - Google Patents

Abstract

The invention relates to a double-tube type integrated pump station. The pump station comprises a pump station barrel and a maintenance platform, a submersible sewage pump, a water inlet pipeline and a water outlet pipeline which are arranged in the pump station barrel, the maintenance platform is arranged on the upper middle part in the pump station barrel, the submersible sewage pump is arranged below the maintenance platform, and the water inlet pipeline and the water outlet pipeline are arranged on the pump station barrel; an inner tube is arranged in the pump station barrel, four hydraulic lifting devices are arranged in the bottom of the pump station barrel and connected to the bottom of the inner tube, the inner tube is located below the submersible sewage pump, and an opening of the inner tube faces the submersible sewage pump; sliding chutes are installed on the inner side wall of the pump station barrel, a pulley is additionally installed in each sliding chute, the inner tube is connected with the side wall of pump station barrel in a sliding mode through the pulleys, and the inner tube can move up and down under the action of the hydraulic lifting devices and the pulleys arranged in the sliding chutes. By means of the double-tube type integrated pump station, a water pump can be protected to work normally, self-cleaning of the integrated pump station can be achieved, the market prospect is broad, and the huge economic benefit can be brought.

Description

A double-barrel integrated pumping station

technical field

The invention relates to a double-tube integrated pumping station, which belongs to the fields of water supply and drainage engineering and water conservancy engineering.

Background technique

With the continuous expansion of the city scale, the discharge of urban sewage is also increasing. The integrated pump station plays an increasingly important role in the process of urban sewage collection and centralized treatment. The integrated pumping station is mainly composed of glass fiber reinforced plastic forming cylinder, submersible sewage pump, maintenance platform, escalator, water inlet pipe, water outlet pipe, automatic coupling device, automatic control system, etc. It is mainly used to collect and discharge sewage and wastewater in residential quarters, restaurants, schools, factories, military barracks and other public places, and is mainly installed in buried or semi-buried.

At present, the cylinder body of the integrated pump station on the market adopts a single cylinder structure, and the bottom of the cylinder body is fixed, resulting in a certain suspended height of the water pump bell mouth. The value of the suspension height has a significant impact on the flow state near the bell mouth, and a suitable suspension height will make the water flow into the bell mouth smoothly and evenly. When the suspended height is small, the flow state of the water entering the bell mouth is very poor, resulting in a large hydraulic loss, and it is easy to generate vortex and cause cavitation of the water pump. When the suspended height is large, the water flow velocity at the bottom plate is small, and the water flow cannot be fully absorbed. Sewage contains a lot of sludge and other impurities, which makes it easy to accumulate sludge and garbage at the bottom of the pumping station, which not only affects the performance of the pumping station but also produces odors. It is very inconvenient to clean up and waste a lot of manpower and material resources. Maintenance and Cleanup costs are high. Authorized invention patent 201120088061X adopts a well-type pumping station that can generate pre-swirling water flow. The technical principle is that the sewage at the bottom of the sewage pool flows into the pre-swirling basin along the inner ditch of the pre-swirling basin, and forms a flow in the pre-swirling basin in the direction of rotation of the pump. The same water flow can effectively reduce the shutdown water level of the pump, and is beneficial to cleaning the sewage and sludge at the bottom of the sewage pool. However, due to the increased pre-rotation of the pump suction port, the rotation volume of the pump will increase, which will cause vibration and cavitation of the pump unit. Published invention patent 201420411033.0 installs rotating cleaning paddles, plasma air deodorizers and exhaust pipelines at the bottom of the pump station, and stirs at the bottom through the rotating cleaning paddles to prevent sludge accumulation and eliminate odors to achieve self-cleaning effects. However, the rotating motor will generate a lot of vibration when it is working, and it cannot achieve a timely and effective self-cleaning function.

Contents of the invention

The present invention aims at the problem that the bottom of the cylinder body of the integrated pumping station currently on the market is fixed, so that the integrated pumping station has insufficient suction and diversion of water, and cannot adapt to the working conditions of the integrated pumping station with large water level fluctuations and poor self-cleaning ability. To solve these problems, a double-barrel integrated pumping station is provided to solve these problems by improving the bottom structure of the integrated pumping station.

The purpose of the present invention is achieved through the following technical solutions, a double-tube integrated pumping station, including a pumping station cylinder and a maintenance platform, a submersible sewage pump, a water inlet pipe, and a water outlet pipe arranged in the pumping station cylinder. The maintenance platform is set in the middle and upper part of the pumping station body, the submersible sewage pump is set under the maintenance platform, and the water inlet and outlet pipes are set on the pumping station body; the feature is: the pumping station body is provided with an inner cylinder , There are 4 hydraulic lifting devices at the bottom of the cylinder of the pumping station, the hydraulic lifting device is connected to the bottom of the inner cylinder, the inner cylinder is located below the submersible sewage pump and the opening faces the submersible sewage pump; There is a chute, and a pulley is installed in the chute, and the inner cylinder and the side wall of the pump station are slidably connected by the pulley, and the inner cylinder can move up and down under the action of the hydraulic lifting device and the pulley installed in the chute; the pump A liquid level float sensor is installed in the cylinder of the pump station, and the inner cylinder is raised and lowered by controlling the hydraulic lifting device according to the water level signal in the cylinder of the pump station transmitted by the liquid level float sensor.

The top of the cylinder body of the pump station is provided with a pump station entrance, and an escalator is provided between the maintenance platform and the pump station entrance.

A pulverized grill is arranged at the outlet of the water inlet pipe.

The submersible sewage pump is suspended in the cylinder body of the pump station through a guide rod, and a guide rod lifting device is provided on the maintenance platform, and the guide rod is a toothed guide rod, which is engaged in the guide rod lifting device.

The outlet pipe is connected to the submersible sewage pump through a flange, a flexible soft rubber joint, and a 90° elbow; a fixed tie rod is provided on the maintenance platform, and the outlet pipe is fixed on the maintenance platform through the fixed tie rod.

The cylinder body of the pump station is provided with ventilation holes.

The cylinder of the pump station is made of fiber-wound fiberglass.

The inner cylinder is connected with the top end of the hydraulic lifting device through bolts.

The present invention has a reasonable and simple structure and is easy to manufacture. Through the present invention, a double-barrel bottom structure is adopted, and an inner barrel is arranged in the barrel of the pump station, and the inner barrel is installed at the lower part of the barrel of the pump station. The hydraulic lifting device that automatically controls the lifting, that is, the inner cylinder is supported on 4 hydraulic lifting devices.

The cylinder of the pumping station is made of fiber-wound fiberglass. The cylinder of the pumping station is equipped with maintenance platforms, submersible sewage pumps, escalators, liquid level float sensors, automatic control systems, water inlet and outlet pipes, etc. The maintenance platform is set in the middle and upper part of the cylinder body of the pump station, and the escalator is set between the maintenance platform and the upper opening of the cylinder body of the pump station. A crushed grille is installed at the water inlet of the water inlet pipe. The debris enters the pump barrel through the crushed grille. The submersible sewage pump is suspended in the cylinder of the pump station through the guide rod, and the outlet pipe is connected to the submersible sewage pump through a flange and a 90° elbow. The pull rod on the inspection platform is fixed, and is fixed again with bolts when the outlet pipe passes through the inspection platform. There are ventilation holes on the top of the cylinder of the pumping station to make the air in the cylinder of the pumping station unimpeded. The cylinder body of the pump station adopts a double-layer bottom structure, and the inner cylinder structure is changed to a cylinder-type bottom structure that can move up and down. Four hydraulic lifting devices that can automatically control the lifting are installed under the bottom structure of the inner cylinder. A pulley is installed between the inner cylinder and the cylinder body of the pump station to ensure the smooth up and down movement of the inner cylinder.

The invention adopts a double-tube bottom structure, and four hydraulic lifting devices that can automatically control the lifting are installed at the bottom of the inner tube. According to the water level in the cylinder body of the pump station, the inner cylinder is properly lifted to obtain a suitable suspension height of the bell mouth of the submersible sewage pump. When the suspension height is certain, the middle and upper layer of water in the cylinder can be fully absorbed, so that the submersible sewage pump can run smoothly and the water level in the cylinder can be improved. When it is lowered, the impurities in the low water flow of the lowered suspended high cylinder are fully absorbed, which not only protects the normal operation of the water pump but also realizes the self-cleaning of the integrated pump station.

According to the water level signal in the cylinder of the pump station from the float water level sensor, the inner cylinder of the integrated pump station is properly raised and lowered. When the water level in the cylinder of the pumping station is high, adjust the distance between the bottom of the inner cylinder and the bell mouth of the submersible sewage pump to DL (DL is the diameter of the bell mouth), so as to avoid the submersible sewage pump running unstable due to cavitation caused by excessive flow velocity; When the water level in the cylinder of the pumping station is low, the inner cylinder is raised, and the distance between the bottom of the inner cylinder and the bell mouth of the submersible sewage pump is (0.5-0.6) DL (DL is the diameter of the bell mouth), which increases the water flow rate at the bottom of the inner cylinder. The impurities in the water flow are fully absorbed. The invention not only protects the submersible sewage pump but also realizes the self-cleaning of the integrated pumping station. The service life of the submersible sewage pump and the pump station is prolonged, a lot of manpower and material resources are saved, and the cost of maintenance and cleaning is low.

The invention has simple structure and convenient installation, which can not only protect the normal operation of the water pump but also realize the self-cleaning of the integrated pumping station. The service life of the water pump and the pump station is extended, a lot of manpower and material resources are saved, and the maintenance and cleaning costs are low. The market has broad prospects and will bring huge economic benefits.

Description of drawings

Figure 1 is a plan layout of the double-barrel integrated pumping station.

In the figure: 1 pumping station cylinder, 2 submersible sewage pump, 3 inner cylinder, 4 hydraulic lifting device, 5 water inlet pipe, 6 guide rod, 7 guide rod lifting device, 8 pumping station entrance, 9 escalator, 10 air vent, 11 outlet pipe, 12 flange, 13 pull rod, 14 pulley, 15 maintenance platform, 16 flexible soft rubber joint, 1790° elbow, 18 crushed grille, 19 liquid level float sensor.

detailed description

The present invention will be further described below in conjunction with the drawings and descriptions of the drawings.

Double-barrel integrated pump station, the pump station cylinder 1 is made of fiber-wound fiberglass, and the pump station cylinder 1 is equipped with an inspection platform 15, a submersible sewage pump 2, an escalator 9, a liquid level float sensor 19, and a water inlet 5. Outlet pipeline 11. The maintenance platform 15 is set in the middle and upper part of the pumping station cylinder 1, and the escalator 9 is set between the maintenance platform 15 and the upper opening of the pumping station cylinder 1, as shown in Figure 1, the pumping station entrance 8 is set on the pumping station cylinder 1 , the escalator 9 is set between the maintenance platform 15 and the pump station inlet 8, and a pulverized grille 18 is installed at the outlet of the water inlet pipe 5, and the sundries contained in the water flow entering the water inlet pipe 5 enter through the pulverized grille 18 Inside the cylinder body 1 of the pump station. The submersible sewage pump 2 is suspended in the cylinder body 1 of the pumping station through the guide rod 6. The guide rod lifting device 7 is provided on the maintenance platform 15. The guide rod 6 is a toothed guide rod and is engaged in the guide rod lifting device 7. The outlet pipe 11 is connected to the submersible sewage pump 2 through the flange 12, the flexible soft rubber joint 16, and the 90° elbow 17. The pull bar 13 that is installed on the overhaul platform 15 is fixed, and fixes again with bolt when outlet pipeline 11 passes overhaul platform 15, and the screw thread sleeve that passes over overhaul platform 15 places welds thread at outlet pipeline 11. A ventilation hole 10 is provided on the top of the cylinder body 1 of the pumping station so as to make the air in the cylinder body 1 of the pumping station unimpeded. The liquid level float sensor 19 is arranged on the inner wall of the cylinder body 1 of the pumping station. The cylinder body of the pump station adopts a double-layer bottom structure, that is, the cylinder body 1 of the pump station is provided with an inner cylinder 3, the inner cylinder 3 is installed on the lower part of the cylinder body 1 of the pump station, and the inner wall of the cylinder body 1 of the pump station is installed with The chute, a pulley 14 is installed in the chute, the inner cylinder and the side wall of the pump station cylinder 1 are slidably connected by the pulley 14, the inner bottom of the pump station cylinder 1 is provided with 4 hydraulic lifting devices 4, and the inner cylinder 3 is supported and connected to the On the 4 hydraulic lifting devices 4, the inner tube 3 is connected with the top of the hydraulic lifting device 4 by bolts, and the inner tube 3 can move up and down under the action of the hydraulic lifting device 4 and the pulley 14 arranged in the chute.

The inner cylinder 3 is a cylindrical bottom structure that can move up and down, and four hydraulic lifting devices 4 that can automatically control the lifting are installed under the inner cylinder 3 . A pulley 14 is installed between the inner cylinder 3 and the cylinder body 1 of the pumping station to ensure that the inner cylinder 3 moves up and down smoothly.

According to the water level signal in the cylinder body 1 of the pump station transmitted by the float water level sensor 19, the inner cylinder 3 of the integrated pump station is properly raised and lowered. When the water level in the cylinder body 1 of the pumping station is high, adjust the distance between the bottom of the inner cylinder 3 and the bell mouth of the submersible sewage pump 2 to DL (DL is the diameter of the bell mouth), so as to avoid the operation of the submersible sewage pump caused by cavitation caused by excessive flow velocity Unsteady; when the water level in cylinder 1 of the pumping station is low, raise inner cylinder 3, and the distance from the bottom of inner cylinder 3 to the bell mouth of submersible sewage pump 2 is (0.5-0.6) DL (DL is the diameter of the bell mouth) , increasing the water flow velocity at the bottom of the inner tube, so that the impurities in the water flow are fully absorbed. The invention not only protects the submersible sewage pump 2 but also realizes the self-cleaning of the integrated pumping station. The service life of the submersible sewage pump 2 and the pumping station is prolonged, a lot of manpower and material resources are saved, and maintenance and cleaning costs are low.

Claims (8)

1. A double-barrel integrated pumping station, including the pumping station cylinder (1) and the maintenance platform (15) set in the pumping station cylinder (1), submersible sewage pump (2), water inlet pipe (5 ), the water outlet pipeline (11), the maintenance platform (15) is set in the middle and upper part of the pump station cylinder (1), the submersible sewage pump (2) is set under the maintenance platform (15), the water inlet pipeline (5) . The water outlet pipe (11) is arranged on the cylinder body (1) of the pump station; the characteristic is that: the cylinder body (1) of the pump station is provided with an inner cylinder (3), and the bottom of the cylinder body (1) of the pump station is provided with 4 A hydraulic lifting device (4), the hydraulic lifting device (4) is connected to the bottom of the inner cylinder (3), the inner cylinder (3) is located below the submersible sewage pump (2) and the opening faces the submersible sewage pump (2); A chute is installed on the inner wall of the pumping station cylinder (1), and a pulley (14) is installed in the chute, and the inner cylinder (3) is slidably connected with the side wall of the pumping station cylinder (1) through the pulley (14). The inner cylinder (3) can move up and down under the action of the hydraulic lifting device (4) and the pulley (14) installed in the chute; the pump station cylinder (1) is equipped with a liquid level float sensor (19) According to the water level signal in the cylinder body (1) of the pump station transmitted by the liquid level float sensor (19), the inner cylinder (3) is raised and lowered by controlling the hydraulic lifting device (4). 2. A double-tube integrated pumping station according to claim 1, characterized in that: the top of the pumping station cylinder (1) is provided with a pumping station inlet (8), and the maintenance platform (15) is connected to the pumping station An escalator (9) is provided between the entrances (8). 3. The dual-barrel integrated pumping station according to claim 1, characterized in that: a pulverized grille (18) is provided at the outlet of the water inlet pipe (5). 4. A double-barrel integrated pumping station according to claim 1, characterized in that: the submersible sewage pump (2) is suspended in the cylinder (1) of the pumping station through a guide rod (6), and the maintenance platform (15) is provided with guide rod elevating device (7), and guide rod (6) is a toothed guide rod, and bites in the guide rod elevating device (7). 5. A double-barrel integrated pumping station according to claim 1, characterized in that: the outlet pipe (11) passes through the flange (12), flexible soft rubber joint (16), 90° bend The pipe (17) is connected with the submersible sewage pump (2); the maintenance platform (15) is provided with a fixed tie rod (13), and the outlet pipe (11) is fixed on the maintenance platform (15) through the fixed tie rod (13). 6. A double-barrel integrated pumping station according to claim 1, characterized in that: the cylinder body (1) of the pumping station is provided with ventilation holes (10). 7. A double-tube integrated pump station according to claim 1, characterized in that: the pump station cylinder (1) is made of fiber-wound fiberglass. 8. The dual-tube integrated pumping station according to claim 1, characterized in that: the inner tube (3) is connected to the top of the hydraulic lifting device (2) by bolts.