Waste liquid storage tank

By designing a pumping cylinder and a winding system in the waste liquid storage tank, the problems of cumbersome sewage extraction and pump corrosion were solved, achieving complete sewage extraction and extending equipment life.

CN224185008UActive Publication Date: 2026-05-01NANJING TAP WATER GENERAL CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING TAP WATER GENERAL CO
Filing Date
2025-06-16
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In municipal water supply booster stations, the process of extracting wastewater from waste liquid storage tanks is cumbersome and the water pumps are easily corroded, resulting in a shortened equipment lifespan.

Method used

A waste liquid storage tank was designed, comprising a tank body, a pumping cylinder, a water pump, and a drive system. Wastewater is introduced into the pumping cylinder through a lower connecting pipe, and the water pump is suspended using a winding system and a valve core control system to prevent it from being submerged in wastewater.

Benefits of technology

It achieves complete sewage extraction, protects the water pump from corrosion, and extends the equipment's lifespan.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224185008U_ABST
    Figure CN224185008U_ABST
Patent Text Reader

Abstract

The utility model provides a waste liquid storage tank which comprises a tank body, one side of the tank body is provided with a water pumping barrel, the bottom of the tank body is fixedly connected with a lower connecting pipe, the other end of the lower connecting pipe is communicated with the lower portion of the water pumping barrel, the lower connecting pipe is provided with a connecting pipe opening, the upper end of the tank body is fixedly connected with an upper connecting pipe, and the lower end of the upper connecting pipe is communicated with the water pumping barrel. The other end of the upper connecting pipe communicates with the upper portion of a water pumping barrel, a fixing frame is arranged in the upper end of the water pumping barrel, a rotating shaft is rotationally arranged on the inner side of the fixing frame, a take-up wheel is fixedly connected to the middle of the rotating shaft, a water pump is fixedly connected into the water pumping barrel, and the upper end of the water pump is fixedly connected with a sling. And the other end of the sling is wound on the take-up wheel. The water pumping barrel is arranged, sewage in the tank body can be completely pumped out, in addition, a relevant structure is arranged, and the water pump is prevented from being soaked in the sewage for a long time.
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Description

A waste liquid storage tank Technical Field

[0001] This utility model relates to the field of storage tank technology, and in particular to a waste liquid storage tank. Background Technology

[0002] In municipal water supply regional booster stations, in addition to booster pump units used to increase water pressure in the municipal water network, booster stations generally also have a function for supplementing disinfection, such as by adding sodium hypochlorite solution. Wastewater is generated during the operation of the sodium hypochlorite dosing system, including wastewater from the periodic cleaning of sodium hypochlorite solution storage containers and wastewater from the periodic backwashing of water softening equipment. Because the amount of wastewater generated is relatively small and the booster station occupies a relatively small area, a wastewater treatment system is generally not installed. The wastewater generated during operation is usually temporarily stored in tanks and then transferred using water tankers for subsequent maintenance. To improve the aesthetics of the booster station, the tanks are usually buried underground.

[0003] When the tank is full of sewage, a water pump is usually used to remove it. However, the tank's side walls are curved, so a significant amount of sewage remains inside after pumping. Each pumping operation requires inserting the water pump through the manhole into the tank, which is cumbersome. Placing the pump inside the tank itself would also be problematic, as the sewage would corrode the pump and shorten its lifespan. Summary of the Invention

[0004] To address the aforementioned problems, this utility model discloses a waste liquid storage tank, comprising a tank body, a pumping cylinder disposed on one side of the tank body with its lower end located below the tank body, a lower connecting pipe fixedly connected to the bottom of the tank body, the other end of the lower connecting pipe communicating with the lower part of the pumping cylinder, and a connecting port provided on the lower connecting pipe, and an upper connecting pipe fixedly connected to the upper end of the tank body, the other end of the upper connecting pipe communicating with the upper part of the pumping cylinder. The pumping cylinder, disposed on one side, allows wastewater stored in the tank to enter the pumping cylinder through the lower connecting pipe. This wastewater contains hypochlorite ions, which are corrosive. Furthermore, the lower end of the pumping cylinder is positioned below the tank body, ensuring that all wastewater in the tank can flow into the interior of the pumping cylinder.

[0005] A fixed frame is installed inside the upper end of the pumping cylinder. A rotating shaft is rotatably mounted inside the fixed frame. A take-up reel is fixedly connected to the middle of the rotating shaft. A water pump is fixedly connected inside the pumping cylinder. A sling is fixedly connected to the upper end of the water pump, and the other end of the sling is wound around the take-up reel. Rotating the take-up reel and winding up the sling can lift the water pump, thus preventing the water pump from being submerged in the sewage remaining in the pumping cylinder.

[0006] Preferably, a rotating wheel is fixedly connected to the rotating shaft. Holding the rotating wheel facilitates the rotation of the rotating shaft.

[0007] Preferably, a pin is inserted into the fixed frame, and a plurality of pin holes are provided on the rotating wheel, with the pin engaging with the pin holes. When the pin engages with the pin holes, it restricts the rotation of the take-up reel.

[0008] Preferably, the lower part of the pumping cylinder is provided with a channel, and the channel is connected to the lower connecting pipe. A spherical valve core is rotatably installed in the channel. That is, a valve structure is provided at the lower part of the pumping cylinder, and the valve needs to be opened before the tank enters the interior of the pumping cylinder.

[0009] Preferably, a drive motor is fixedly connected to the fixed frame, and a rotating rod is fixedly connected to the output end of the drive motor. The lower end of the rotating rod is fixedly connected to the valve core. When the drive motor is started, the valve core rotates via the rotating rod, thereby opening and closing the valve.

[0010] Preferably, the tank is horizontally positioned and has a base underneath. The base is used to support and fix the tank.

[0011] Preferably, a manhole is provided at the upper part of the tank, and flange blind plates are provided at the upper ends of both the manhole and the water pump. The flange blind plates are used to seal the upper ends of the manhole and the water pump. Note that the upper end of the water pump is not sealed.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. A water pump is installed on one side of the tank. All the sewage in the tank enters the water pump through the lower connecting pipe. When the water pump is turned on, the sewage in the tank can be completely pumped out.

[0014] 2. The pumping cylinder is equipped with a winding wheel, slings, valve core, and drive motor. After the sewage is pumped out, the winding wheel and slings can suspend the pump to prevent it from being submerged in sewage. In addition, the valve core and drive motor prevent sewage from entering the pumping cylinder. Therefore, the pump is installed in the pumping cylinder to avoid being submerged in sewage. Attached Figure Description

[0015] Figure 1 is a three-dimensional schematic diagram of this utility model;

[0016] Figure 2 is a schematic diagram of the internal structure of the upper end of the pumping cylinder of this utility model;

[0017] Figure 3 is a cross-sectional view of the lower part of the pumping cylinder of this utility model.

[0018] List of reference numerals in the attached diagram:

[0019] 1. Tank body; 2. Manhole; 3. Base; 4. Upper connecting pipe; 5. Connecting pipe port; 6. Lower connecting pipe; 7. Pumping cylinder; 8. Fixing frame; 9. Lifting sling; 10. Rotating shaft; 11. Take-up reel; 12. Rotating rod; 13. Drive motor; 14. Pin; 15. Rotating wheel; 16. Pin hole; 17. Valve core; 18. Water pump. Detailed Implementation

[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0021] As shown in Figures 1 to 3, a waste liquid storage tank includes a tank body 1. The tank body 1 is used in a booster station, where wastewater containing hypochlorite ions generated during the operation of the booster station is stored. A pumping cylinder 7 is installed on one side of the tank body 1. Because the wastewater is corrosive, both the tank body 1 and the pumping cylinder 7 are made of fiberglass. The lower end of the pumping cylinder 7 is located below the tank body 1, which facilitates the flow of wastewater from the tank body 1 into the pumping cylinder 7. A lower connecting pipe 6 is fixedly connected to the bottom of the tank body 1, and the other end of the lower connecting pipe 6 is connected to... The lower part of the pumping cylinder 7 is connected, that is, the sewage stored in the tank 1 enters the pumping cylinder 7 through the lower connecting pipe 6. The lower connecting pipe 6 is provided with a connecting pipe port 5. The sewage is sent into the tank 1 through the connecting pipe port 5. The upper end of the tank 1 is fixedly connected to the upper connecting pipe 4. The other end of the upper connecting pipe 4 is connected to the upper part of the pumping cylinder 7. The upper connecting pipe 4 is used for venting. After the sewage is pumped into the tank 1, the gas in the tank 1 enters the pumping cylinder 7 through the upper connecting pipe 4 and then is discharged from the upper end of the pumping cylinder 7.

[0022] A fixing frame 8 is installed inside the upper end of the water pump 7. Note that the upper part of the water pump 7 is stepped, and the fixing frame 8 is placed on the steps. A rotating shaft 10 is rotatably mounted inside the fixing frame 8. A take-up reel 11 is fixedly connected to the middle of the rotating shaft 10. A water pump 18 is fixedly connected inside the water pump 7. A sling 9 is fixedly connected to the upper end of the water pump 18, and the other end of the sling 9 is wound around the take-up reel 11. After pumping is completed, and the bottom of the water pump 18 is immersed in sewage, which is corrosive, the lifespan of the water pump 18 will be greatly shortened if it remains submerged. Therefore, rotating the rotating shaft 10 causes the take-up reel 11 to wind up the sling 9, raising the water pump 18 and preventing it from being submerged in sewage.

[0023] A rotating wheel 15 is fixedly connected to the rotating shaft 10. The rotating wheel 15 is provided to facilitate the rotation of the rotating shaft 10.

[0024] A pin 14 is inserted into the fixed frame 8, and several pin holes 16 are provided on the rotating wheel 15. The pin 14 and the pin holes 16 cooperate with each other. When it is necessary to restrict the rotation of the rotating shaft 10, the pin 14 is inserted into the pin hole 16 to restrict and fix the rotating wheel 15.

[0025] The lower part of the pumping cylinder 7 is provided with a channel, and the channel is connected to the lower connecting pipe 6. A ball valve core 17 is rotatably installed in the channel. That is, a valve is provided at the bottom of the pumping cylinder 7. When sewage in the tank 1 needs to be introduced into the pumping cylinder 7, the valve core 17 is rotated to connect the tank 1 and the pumping cylinder 7.

[0026] A drive motor 13 is fixedly connected to the fixed frame 8. A rotating rod 12 is fixedly connected to the output end of the drive motor 13. The lower end of the rotating rod 12 is fixedly connected to the valve core 17. When the drive motor 13 is started, the rotating rod 12 rotates, thereby driving the valve core 17 to rotate.

[0027] The tank 1 is horizontally positioned and has a base 3 underneath, which is used to support and fix the tank 1.

[0028] A manhole 2 is provided at the top of the tank 1 to facilitate maintenance of the inside of the tank 1 by the staff. Both the manhole 2 and the upper end of the water pump 7 are equipped with flange blind plates to seal them.

[0029] The technical means disclosed in this utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A waste liquid storage tank, characterized in that, The device includes a tank (1), a pumping cylinder (7) is provided on one side of the tank (1), and the lower end of the pumping cylinder (7) is located below the tank (1). A lower connecting pipe (6) is fixedly connected to the bottom of the tank (1), and the other end of the lower connecting pipe (6) is connected to the lower part of the pumping cylinder (7). A connecting pipe port (5) is provided on the lower connecting pipe (6). An upper connecting pipe (4) is fixedly connected to the upper end of the tank (1), and the other end of the upper connecting pipe (4) is connected to the upper part of the pumping cylinder (7). A fixed frame (8) is provided inside the upper end of the pumping cylinder (7), and a rotating shaft (10) is rotatably provided inside the fixed frame (8). A take-up reel (11) is fixedly connected to the middle of the rotating shaft (10). A water pump (18) is fixedly connected inside the pumping cylinder (7), and a sling (9) is fixedly connected to the upper end of the water pump (18). The other end of the sling (9) is wound around the take-up reel (11).

2. The waste liquid storage tank according to claim 1, characterized in that: A rotating wheel (15) is fixedly connected to the rotating shaft (10).

3. A waste liquid storage tank according to claim 2, characterized in that: A pin (14) is inserted through the fixed frame (8), and a number of pin holes (16) are provided on the rotating wheel (15). The pin (14) and the pin holes (16) cooperate with each other.

4. A waste liquid storage tank according to claim 1, characterized in that: The lower part of the pumping cylinder (7) is provided with a channel, and the channel is connected to the lower connecting pipe (6). A spherical valve core (17) is rotatably installed in the channel.

5. A waste liquid storage tank according to claim 4, characterized in that: A drive motor (13) is fixedly connected to the fixed frame (8), and a rotating rod (12) is fixedly connected to the output end of the drive motor (13). The lower end of the rotating rod (12) is fixedly connected to the valve core (17).

6. A waste liquid storage tank according to claim 1, characterized in that: The tank (1) is horizontally positioned and has a base (3) below it.

7. A waste liquid storage tank according to claim 1, characterized in that: The upper part of the tank (1) is provided with a manhole (2), and the upper ends of the manhole (2) and the pump (7) are both provided with flange blind plates.