Sewage pump station

Abstract

The utility model discloses a sewage pump station which comprises a shell, at least one sewage pump and a pump set hoisting device, an access hole is formed in the top of the shell, a water inlet and a water outlet are formed in the side face of the shell, a sewage storage cavity is formed in the shell, and the water inlet is communicated with the sewage storage cavity; the sewage pump is installed in the shell and located below the shell, a water pumping opening and a water discharging opening are formed in the sewage pump, the water discharging opening is communicated with the water outlet of the shell, and the water pumping opening of the sewage pump is communicated with the sewage storage cavity; the pump set hoisting device comprises a balancing weight and a hoisting device, the driving source is arranged in the shell and is positioned above the shell; the wheel set is in transmission connection with the driving source, a lifting inhaul cable is wound on the wheel set, one end of the lifting inhaul cable is suitable for being connected with the sewage pump, and the other end of the lifting inhaul cable is suitable for being connected with the balancing weight; the sewage pump can be conveniently replaced, and the replacement efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a sewage pumping station, belonging to the technical field of sewage treatment. Background Art

[0002] At present, in the field of sewage treatment, the discharge process of sewage mainly relies on gravity flow. However, in some cases, such as flat ground, low-lying areas or occasions where a certain height difference needs to be overcome, relying solely on gravity flow is not sufficient to meet the sewage discharge requirements. Therefore, in modern urban life and industrial production, it is often necessary to set up sewage pumping stations to lift and convey sewage to ensure normal urban operation and industrial production. Inside the sewage pumping station, the pump unit is usually installed at the bottom of the pumping station. However, once problems such as faults occur in the pump unit and need to be repaired, the pump unit needs to be lifted to the ground. Such an operation is not only cumbersome but also wastes a lot of manpower and material resources.

[0003] After retrieving the prior art, it is found that the Chinese patent with the publication number CN208395972U discloses an integrated sewage pumping station that is convenient for replacing the pump unit. During the use process, it is found that the lifting efficiency from the rotating wheel to the lifting rope in this patent is relatively low and the installation is not very convenient. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a sewage pumping station that can conveniently replace the sewage pump and improve the replacement efficiency.

[0005] To solve the above technical problem, the technical solution of the utility model is: a sewage pumping station, comprising:

[0006] A housing, the top of the housing is provided with a maintenance opening, the side of the housing is provided with a water inlet and a water outlet, a sewage storage cavity is arranged inside the housing, and the water inlet is communicated with the sewage storage cavity;

[0007] At least one sewage pump, the sewage pump is installed inside the housing and below the housing, the sewage pump is provided with a water pumping port and a water drainage port, the water drainage port is communicated with the water outlet of the housing, and the water pumping port of the sewage pump is communicated with the sewage storage cavity;

[0008] A pump unit hoisting device, the pump unit hoisting device includes:

[0009] A counterweight;

[0010] A driving source, the driving source is installed inside the housing and above the housing;

[0011] A wheel set, which is in transmission connection with the driving source. An elevating cable is wound around the wheel set. One end of the elevating cable is adapted to be connected to the sewage pump, and the other end is adapted to be connected to the counterweight block;

[0012] The driving source is adapted to drive the wheel set to rotate, so as to drive the sewage pump and the counterweight block on the elevating cable to move relatively or move away from each other through the elevating cable.

[0013] Furthermore, in order to guide and stabilize the lifting movement of the sewage pump, the pump unit hoisting device further includes a lifting guiding mechanism, and the lifting guiding mechanism includes:

[0014] A pump unit guiding member, which is installed on the sewage pump, and at least one guiding hole is provided on the pump unit guiding member;

[0015] At least one guiding rod, which is vertically installed in the housing;

[0016] The guiding hole of the pump unit guiding member is adapted to be slidably fitted on the guiding rod.

[0017] Furthermore, in order to facilitate the maintenance personnel to enter and exit through the inspection opening for maintenance, the sewage pumping station further includes a ladder, which is vertically installed in the housing. One end of the ladder extends to the inspection opening of the housing, and the other end extends to the bottom of the housing.

[0018] Furthermore, in order to facilitate the hoisting of the sewage pump, a lifting lug is further provided at the top of the sewage pump, and the lifting lug is adapted to be detachably connected to one end of the elevating cable.

[0019] Furthermore, in order to filter larger sundries entering, the sewage pumping station further includes an inlet grille, which is detachably installed at the water inlet of the housing.

[0020] Furthermore, in order to control the discharge of sewage, the sewage pumping station further includes an outlet valve, which is arranged on the pipeline between the drainage port of the sewage pump and the water outlet of the housing. The outlet valve is adapted to be actuated to cut off or restore the communication state between the drainage port of the sewage pump and the water outlet of the housing.

[0021] Furthermore, in order to be able to control the entry of sewage, the sewage pumping station further includes an inlet gate, which is arranged at the water inlet of the housing.

[0022] Furthermore, a flow sensor is further provided at the water outlet of the housing, and the flow sensor is adapted to detect the flow rate of the water outlet of the housing and send out a flow signal;

[0023] It further includes a controller, and the controller is electrically connected to the flow sensor;

[0024] A frequency converter is also provided inside the housing, and the frequency converter is respectively connected to the controller and the sewage pump;

[0025] The controller is adapted to receive the flow signal from the flow sensor and control the operating speed of the sewage pump through the frequency converter.

[0026] Furthermore, a maintenance door is hinged on the maintenance opening of the housing, and the maintenance door is adapted to rotate around its hinge side to open or close the maintenance opening.

[0027] Furthermore, the sewage pumping station further includes a plurality of side anchoring members, the side anchoring members are installed on the side of the housing, and the side anchoring members are provided with fixing holes adapted for fixing.

[0028] Adopting the above technical solutions, the present utility model has the following beneficial effects:

[0029] In the present utility model, when the sewage pump needs to be replaced, first, disconnect the pipeline connection between the sewage pump already installed in the housing and the water outlet. Subsequently, connect the sewage pump with the lifting cable on the wheel set of the pump unit hoisting device. At the other end of the lifting cable, place counterweights on the lifting cable through the position of the maintenance opening. Driven by the driving source, drive the counterweights to gradually descend, and the sewage pump to be replaced gradually rises. When the sewage pump rises to the maintenance opening, the old sewage pump can be conveniently taken out from the maintenance opening, and then the new sewage pump is hung on the lifting cable through the maintenance opening. Then, driven by the driving source, the new sewage pump reaches the bottom of the housing, and at this position, complete the pipeline connection between the new sewage pump and the water outlet inside the housing. After that, remove the counterweights from the maintenance opening at the other end of the lifting cable, and the entire sewage pump replacement process is completed. Using counterweights can reduce the volume of the driving source, increase the available area, and improve the safety of the sewage pump lifting process, avoiding the possibility of the sewage pump falling.

[0030] In addition, setting a maintenance door at the maintenance opening enables convenient opening or closing of the maintenance opening; while the anchoring assembly mainly ensures the stability of installation and fixation, and can effectively prevent displacement due to soft ground or uneven external forces.

[0031] In summary, the present utility model provides convenient operation for maintaining and replacing the sewage pump, enhances stability and safety, and effectively improves the overall performance and service life of the sewage pumping station. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional structural schematic diagram of the sewage pumping station of the present utility model;

[0033] Figure 2 is a three-dimensional sectional structural schematic of the sewage pumping station of the present utility model Figure 1 ;

[0034] Figure 3 Schematic diagram of the three-dimensional sectional structure of the sewage pumping station of the present utility model Figure 2 。 Specific embodiments

[0035] In order to make the content of the present utility model easier to be clearly understood, the present utility model will be further described in detail below according to specific embodiments in conjunction with the accompanying drawings.

[0036] As Figures 1-3 shown, a sewage pumping station includes:

[0037] A housing 1, with a maintenance opening provided at the top of the housing 1, a water inlet 12 and a water outlet 13 provided on the side of the housing 1, and a sewage storage chamber provided inside the housing 1, and the water inlet is communicated with the sewage storage chamber;

[0038] Two sewage pumps 2, the sewage pumps 2 are installed inside the housing 1, below the housing 1, the sewage pumps 2 are provided with a pumping port and a drainage port, the drainage port is communicated with the water outlet 13 of the housing 1, and the pumping port of the sewage pump 2 is communicated with the sewage storage chamber;

[0039] A pump unit hoisting device, and the pump unit hoisting device can be the following structure:

[0040] A counterweight;

[0041] A driving source 31, the driving source 31 is installed inside the housing 1, above the housing 1;

[0042] A wheel set 32, the wheel set 32 is in transmission connection with the driving source 31, a lifting cable is wound around the wheel set 32, one end of the lifting cable is adapted to be connected to the sewage pump 2, and the other end is adapted to be connected to the counterweight;

[0043] The driving source 31 is adapted to drive the wheel set 32 to rotate, so as to drive the sewage pump 2 and the counterweight on the lifting cable to move relatively or move away from each other through the lifting cable.

[0044] In this embodiment, as Figures 1-3As shown, when the sewage pump 2 needs to be replaced, first, disconnect the pipeline connection between the sewage pump 2 installed in the housing 1 and the water outlet. Subsequently, connect the sewage pump 2 with the lifting cable on the wheel set 32 of the pump unit hoisting device. At the other end of the lifting cable, place counterweights on the lifting cable through the inspection port position. Driven by the drive source 31, the counterweights are gradually lowered, and the sewage pump 2 to be replaced gradually rises. When the sewage pump 2 rises to the inspection port, the old sewage pump 2 can be conveniently taken out from the inspection port, and then the new sewage pump 2 is hung on the lifting cable through the inspection port. Then, driven by the drive source 31, the new sewage pump 2 reaches the bottom of the housing, and at this position, the pipeline connection between the new sewage pump 2 and the water outlet in the housing 1 is completed. After that, remove the counterweights from the inspection port at the other end of the lifting cable, and the entire replacement process of the sewage pump 2 is completed.

[0045] Specifically, as Figures 1-3 shown, the pump unit hoisting device further includes a lifting guiding mechanism, and the lifting guiding mechanism can be the following structure:

[0046] A pump unit guide 41 is installed on the sewage pump 2, and two guiding holes are provided on the pump unit guide 41;

[0047] Two guiding rods 42 are vertically installed in the housing 1;

[0048] The guiding holes of the pump unit guide 41 are adapted to be slidably fitted on the guiding rods 42.

[0049] In this embodiment, as Figures 1-3 shown, the lifting guiding mechanism plays a guiding role during the hoisting and lifting of the sewage pump 2, ensuring the stable lifting of the sewage pump 2 and preventing shaking and collision. The specific usage process is as follows: First, vertically install the guiding rods 42 at the preset positions in the housing 1. The guiding rods 42 can be made of metal material, and the surface is smooth to reduce the frictional resistance. During the rising process of the sewage pump 2, the guiding holes on the pump unit guide 41 slide along the guiding rods 42, keeping the sewage pump 2 in a normal posture and avoiding shaking or tilting. A pair of guiding rods 42 are provided. Of course, in some embodiments, multiple guiding rods can be set to cooperate with multiple guiding holes to increase the guiding stability. The arrangement of the guiding rods 42 of the lifting guiding mechanism can also prevent the sewage pump 2 from shifting during long-term operation.

[0050] Specifically, as Figures 1-2 shown, the sewage pumping station further includes a ladder 5. The ladder 5 is vertically installed in the housing 1, one end of the ladder 5 extends to the inspection port of the housing 1, and the other end extends to the bottom of the housing 1.

[0051] In this embodiment, as Figures 1-2As shown, anti-slip patterns are designed on the treads of the ladder 5. When maintenance is required in the sewage pumping station, the staff opens the inspection door and can enter the interior of the housing 1 by descending the ladder from the inspection opening. The lower end of the ladder 5 extends to the bottom, enabling the staff to approach the sewage pump 2 for operation. In addition, auxiliary lighting can be provided near the ladder 5, and a safety railing can be installed at the inspection opening.

[0052] Specifically, as Figures 2-3 shown, lifting lugs 21 are also provided at the top of the sewage pump 2, and the lifting lugs 21 are adapted to be detachably connected to one end of the lifting cable.

[0053] In this embodiment, as Figures 1-3 shown, the lifting lugs 21 can be made of thickened metal ring parts and are welded or otherwise fixedly connected to the top of the sewage pump 2. A hook is provided at one end of the lifting cable. When it is necessary to disassemble and maintain the sewage pump 2, first, the hook at one end of the lifting cable is buckled to the lifting lug 21.

[0054] Specifically, as Figures 1-3 shown, the sewage pumping station further includes an inlet grille 6, and the inlet grille 6 is detachably installed at the position of the water inlet 12 of the housing 1.

[0055] In this embodiment, as Figures 1-2 shown, the inlet grille 6 is composed of a group of metal bars, and the bar spacing is set according to actual needs, ranging from a few centimeters to more than a dozen centimeters, so as to filter out larger debris in the sewage such as plastic bags, branches, etc. The inlet grille 6 is designed to be detachable, facilitating regular maintenance and cleaning. When the debris in the sewage clogs the inlet grille 6, the staff can close the inlet gate on the housing 1, temporarily cut off the water inlet, then remove the inlet grille 6 for cleaning, and restore normal water inlet after reinstallation.

[0056] Specifically, as Figures 1-3 shown, the sewage pumping station further includes an outlet valve 14, and the outlet valve 14 is arranged on the pipeline between the drainage port of the sewage pump 2 and the water outlet 13 of the housing 1. The outlet valve 14 is adapted to be actuated to cut off or restore the communication state between the drainage port of the sewage pump 2 and the water outlet 13 of the housing 1.

[0057] In this embodiment, as Figure 3 shown, the outlet valve 14 can be manual, and a manual turntable is provided on the outlet valve 14. The outlet valve 14 can also be closed when the sewage pumping station stops operating to prevent backflow.

[0058] Specifically, as Figure 1 and Figure 3 shown, the sewage pumping station further includes an inlet gate, and the inlet gate is arranged at the position of the water inlet 12 of the housing 1.

[0059] In this embodiment, as Figures 1-3 shown, the sewage pumping station further includes an inlet gate, which is arranged at the position of the water inlet 12 of the housing 1. The inlet gate can be of manual or electric type. When it is necessary to repair the inlet grille 6, pipeline or internal facilities of the housing 1 at the position of the water inlet 12, the inlet gate can be closed first to cut off the entry of external sewage, so as to provide safe conditions for the repair work. After the repair is completed, the inlet gate is opened to restore the normal water inlet state.

[0060] Specifically, as Figures 1-3 shown, a flow sensor is also provided at the water outlet 13 of the housing 1. The flow sensor is adapted to detect the flow rate of the water outlet 13 of the housing 1 and send out a flow signal;

[0061] It further includes a controller, which is electrically connected to the flow sensor;

[0062] A frequency converter is also provided in the housing 1. The frequency converter is respectively connected to the controller and the sewage pump 2;

[0063] The controller is adapted to receive the flow signal of the flow sensor and control the operating speed of the sewage pump 2 through the frequency converter.

[0064] In this embodiment, as Figures 1-3 shown, a liquid level sensor is also provided in the housing 1. The liquid level sensor is also electrically connected to the controller. The start and stop of the sewage pump 2 are controlled according to the signal of the liquid level sensor. If the controller detects through the flow sensor that the flow rate of the water outlet 13 of the housing 1 exceeds the set value, the operating speed of the sewage pump 2 will be reduced to reduce the pumping speed.

[0065] Specifically, as Figures 1-2 shown, the sewage pumping station further includes a vent pipe 7. One end of the vent pipe 7 is connected to the sewage storage cavity from the side of the housing 1, and the other end extends outside the housing 1.

[0066] In this embodiment, as Figure 2 shown, during normal operation, due to the change of the water level in the sewage storage cavity, it may cause the imbalance of the air pressure inside and outside the sewage storage cavity. Excessive or too small pressure will affect the normal operation. The vent pipe 7 can effectively prevent abnormal pressure. When a low air pressure is formed in the sewage storage cavity, the outside air can flow into the sewage storage cavity through the vent pipe 7 to supplement the internal air; when the internal pressure rises, the gas in the sewage storage cavity can be discharged through the vent pipe 7. A mask cover is provided at the opening of the vent pipe 7 outside to prevent rainwater from pouring in, and the gas enters from the side of the vent pipe 7.

[0067] Specifically, as Figure 1 shown, a repair door is also hinged on the repair opening of the housing 1. The repair door is adapted to rotate around its hinged side to open or close the repair opening.

[0068] In this embodiment, the inspection door includes a first panel and a second door panel, and the first panel and the second door panel are respectively hinged on opposite sides of the inspection opening.

[0069] Specifically, as Figure 1 shown, the sewage pumping station further includes a plurality of side anchoring members, and the side anchoring members are installed on the side of the housing 1. The side anchoring members are provided with fixing holes suitable for fixing.

[0070] In this embodiment, as Figure 1 shown, the side anchoring members are installed on the side of the housing 1. Ring-shaped stirrups or anchor bolts can be used to firmly anchor the side wall of the housing 1 in the surrounding soil or rock. The anchoring assembly can not only prevent the sewage pumping station from displacing under external forces such as gravity and changes in the groundwater level, but also provide sufficient stable support in the event of an earthquake or other situations.

[0071] The above specific embodiments have further elaborated on the technical problems solved, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sewage pumping station, characterized in that: include: A shell (1), wherein the top of the shell (1) is provided with an inspection port, the side of the shell (1) is provided with a water inlet (12) and a water outlet (13), a sewage storage chamber is provided in the shell (1), and the water inlet (12) is connected to the sewage storage chamber; at least one sewage pump (2), the sewage pump (2) being installed in the housing (1) and located below the housing (1), the sewage pump (2) being provided with a water suction port and a water discharge port, the water discharge port being connected to a water outlet (13) of the housing (1), and the water suction port of the sewage pump (2) being connected to the sewage storage chamber; A pump assembly hoisting device, the pump assembly hoisting device comprising: Counterweights; A driving source (31), the driving source (31) being installed in the housing (1) and located above the housing (1); A wheel set (32), the wheel set (32) being drivingly connected to the driving source (31), a lifting cable being wound around the wheel set (32), one end of the lifting cable being suitable for being connected to the sewage pump (2), and the other end of the lifting cable being suitable for being connected to the counterweight block; The driving source (31) is suitable for driving the wheel set (32) to rotate, so as to drive the sewage pump (2) and the counterweight block on the lifting cable to move relative to or away from each other through the lifting cable.

2. The sewage pumping station according to claim 1, characterized in that: The pump assembly hoisting device further comprises a lifting guide mechanism, wherein the lifting guide mechanism comprises: A pump group guide (41), wherein the pump group guide (41) is mounted on the sewage pump (2), and the pump group guide (41) is provided with at least one guide hole; at least one guide rod (42), the guide rod (42) being vertically mounted in the housing (1); The guide hole of the pump group guide member (41) is suitable for slidingly fitting on the guide rod (42).

3. The sewage pumping station according to claim 1, characterized in that: It also comprises a ladder (5), which is vertically installed in the shell (1), with one end of the ladder (5) extending to the inspection opening of the shell (1) and the other end extending to the bottom of the shell (1).

4. The sewage pumping station according to claim 1, characterized in that: The top of the sewage pump (2) is also provided with a lifting lug (21), and the lifting lug (21) is suitable for being detachably connected to one end of the lifting cable.

5. The sewage pumping station according to claim 1, characterized in that: It also comprises a water inlet grille (6), which is detachably mounted at the position of the water inlet (12) of the housing (1).

6. The sewage pumping station according to claim 1, characterized in that: The invention also comprises a water outlet valve (14), wherein the water outlet valve (14) is arranged on a pipeline between the drain outlet of the sewage pump (2) and the water outlet (13) of the housing (1), and the water outlet valve (14) is suitable for being actuated to cut off or restore the communication state between the drain outlet of the sewage pump (2) and the water outlet (13) of the housing (1).

7. The sewage pumping station according to claim 1, characterized in that: It also comprises a water inlet gate, which is arranged at the position of the water inlet (12) of the housing (1).

8. The sewage pumping station according to claim 1, characterized in that: The water outlet (13) of the housing (1) is also provided with a flow sensor, and the flow sensor is suitable for detecting the flow rate of the water outlet (13) of the housing (1) and issuing a flow rate signal; Also includes a controller, the controller is electrically connected to the flow sensor; A frequency converter is also provided in the housing (1), and the frequency converter is connected to the controller and the sewage pump (2) respectively; The controller is suitable for receiving the flow signal of the flow sensor and controlling the operating speed of the sewage pump (2) through the frequency converter.

9. The sewage pumping station according to claim 1, characterized in that: An inspection door is also hinged on the inspection opening of the shell (1), and the inspection door is suitable for rotating around its hinged edge to open or close the inspection opening.

10. The sewage pumping station according to claim 1, characterized in that: It also comprises a plurality of side anchoring members, wherein the side anchoring members are mounted on the side faces of the shell (1), and the side anchoring members are provided with fixing holes suitable for fixing.

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