Sewage pool drainage device

Abstract

The utility model discloses a sewage pool drainage device which comprises a sewage sedimentation pool, a drainage pool is arranged on one side of the sewage sedimentation pool, drainage pipes are arranged on the drainage pool and the sewage pool, one end of each drainage pipe is located in the sewage sedimentation pool, and the other end of each drainage pipe is located in the drainage pool. The height of the end, located in the sewage sedimentation tank, of the drainage pipe is not lower than that of the end, located in the drainage tank, of the drainage pipe, and the drainage pipe is connected with the sewage sedimentation tank and the drainage tank in an up-down sliding mode; according to the utility model, the drainage tank and the drainage pipe are arranged, so that water of the clear water layer after precipitation can be drained into the drainage tank, and then clear water in the drainage tank is discharged through the water pump and the drainage pipeline, so that solid impurities such as silt and the like can be prevented from being sucked into the suction inlet of the water pump; the drainage pipeline is prevented from being blocked, and the service life of drainage equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment, specifically a sewage tank drainage device. Background Technology

[0002] Underground wastewater tanks are commonly used facilities for collecting wastewater and initial rainwater from oil refining and chemical plants. They are equipped with wastewater transfer pumps for timely wastewater transport. The suction inlet of the underground wastewater pump is usually designed at the bottom of the tank to facilitate the emptying of the tank to its maximum capacity. Over time, the bottom of underground wastewater tanks accumulates gravel, silt, and chemical reagent particles, which can clog the pump inlet pipe and pump chamber, damage the pump, and affect wastewater transport. Utility Model Content

[0003] The purpose of this utility model is to provide a sewage tank drainage device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sewage tank drainage device includes a sewage sedimentation tank, a drainage tank is provided on one side of the sewage sedimentation tank, and a diversion pipe is provided on the drainage tank and the sewage sedimentation tank. One end of the diversion pipe is located in the sewage sedimentation tank, and the other end of the diversion pipe is located in the drainage tank. The height of the diversion pipe at the end in the sewage sedimentation tank is not lower than the height of the end of the diversion pipe in the drainage tank. The diversion pipe is slidably connected to the sewage sedimentation tank and the drainage tank.

[0006] The drainage pool is equipped with drainage pipes.

[0007] As a further embodiment of this utility model: the drainage pipe includes a drainage pool section and a sewage sedimentation pool section, and the upper end of the drainage pool section is connected to the sewage pool section.

[0008] As a further embodiment of this utility model, the length of the drainage pool section of the diversion pipe is not less than 2.5 times the length of the sewage pool section.

[0009] As a further embodiment of this utility model: the sewage sedimentation tank section of the diversion pipe is equipped with a float, and the inlet of the sewage sedimentation tank section is located at the lower part of the float.

[0010] As a further embodiment of this utility model: a supporting guide rod is provided in the drainage pool, and at least one sliding sleeve is slidably connected to the supporting guide rod. The drainage pool section of the drainage pipe is slidably connected to the supporting guide rod through the sliding sleeve.

[0011] As a further embodiment of this utility model: the drainage pipe includes a drainage pipe and a water pump connected to the drainage pipe, and the inlet of the drainage pipe is located at the bottom of the drainage pool.

[0012] As a further embodiment of this utility model: the outlet of the water pump is connected to an outlet pipe, and a valve and a liquid level regulating valve are provided between the outlet pipe and the water pump.

[0013] As a further embodiment of this utility model: a first level gauge is provided in the drainage pool, and a second level gauge is provided in the sewage pool.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting up a drainage pool and a diversion pipe, the water in the sedimented clear water layer can be diverted into the drainage pool, and then the clear water in the drainage pool can be discharged through a water pump and drainage pipe. This can prevent the water pump from sucking in solid impurities such as mud and sand, prevent the drainage pipe from being blocked, and improve the service life of the drainage equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the drainage device structure in this embodiment;

[0016] In the diagram: 1-sewage sedimentation tank, 2-drainage tank, 3-inlet pipe, 4-drainage pipe, 5-float, 6-support guide rod, 7-sliding sleeve, 8-water pump, 9-level regulating valve, 10-first level gauge, 11-second level gauge, 12-drainage pipe, 13-valve, 14-clear water layer, 15-sludge layer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 In this embodiment of the present invention, a sewage tank drainage device includes a sewage sedimentation tank 1, a drainage tank 2 is provided on one side of the sewage tank 1, and a diversion pipe 4 is provided on the drainage tank 2 and the sewage tank 1. One end of the diversion pipe 4 is located in the sewage tank 1, and the other end of the diversion pipe 4 is located in the drainage tank 2. The height of the diversion pipe 4 at the end of the sewage sedimentation tank is not lower than the height of the end of the diversion pipe 4 in the drainage tank 2. The diversion pipe 4 is slidably connected to the sewage sedimentation tank 1 and the drainage tank 2.

[0019] In this embodiment, the diversion pipe 4 includes a drainage pool section and a sewage sedimentation tank section. The upper end of the drainage pool section is connected to the sewage pool section. The length of the drainage pool section of the diversion pipe 4 is not less than 2.5 times the length of the sewage sedimentation tank section. The sewage pool section of the diversion pipe 4 is equipped with a float 5. The inlet of the sewage pool section is located at the lower part of the float 5. The diversion pipe 4 can be driven to float up and down by the float 5. A support guide rod 6 is provided in the drainage pool 2. At least one sliding sleeve 7 is slidably connected to the support guide rod 6. The drainage pool section of the diversion pipe 4 is slidably connected to the support guide rod 6 through the sliding sleeve 7. The float 5 can float on the clear water layer 14 in the sewage pool 1 to ensure that the inlet of the diversion pipe 4 in the sewage pool 1 is always in the clear water layer 14, which can prevent the sludge in the sludge pool 15 from being sucked into the drainage pool 2.

[0020] The drainage tank 2 is equipped with drainage pipes, including a drainage pipe 12 and a water pump 8 connected to the drainage pipe 12. The inlet of the drainage pipe 12 is located at the bottom of the drainage tank 2, and the outlet of the water pump 8 is connected to an outlet pipe. A valve 13 and a level regulating valve 9 are installed between the outlet pipe and the water pump 8. A first level gauge 10 is installed in the drainage tank 2, and a second level gauge 11 is installed in the sewage tank 1. The level regulating valve 9 can control the level of the drainage tank to prevent the level from falling below the pump inlet suction pipe and to prevent the pump from running dry. At the same time, it can also prevent the sewage tank from continuously filling with water, resulting in a high level and the sedimentation tank failing to perform its function of settling solid particles, thus controlling the level of the drainage tank to be lower than the level of the sedimentation tank.

[0021] In use, wastewater enters wastewater tank 1 through the inlet pipe 3 and settles there. The liquid levels in wastewater tank 1 and drainage tank 2 are monitored by a second level gauge 11 in the sedimentation tank 1 and a first level gauge 10 in the drainage tank 2. The liquid level in drainage tank 2 is adjusted to match the liquid level in sedimentation tank 1 to prevent unsettled wastewater from entering through the drainage pipe 4. After sedimentation, the wastewater in sedimentation tank 1 separates into a bottom sludge tank 15 and an upper clear water layer 14. The liquid levels in both tanks are higher than the partition wall and are level. At this point, the water pump is started. 8. Open valve 13 to drain water from drainage tank 2. At this time, the water level in drainage tank 2 is lower than the water level in sewage tank 1. Negative pressure appears in the outlet pipe of the diversion pipe. At the same time, under the action of atmospheric pressure, the water in the clear water layer 14 in sewage sedimentation tank 1 will enter the drainage tank 2 through the diversion pipe 4, thereby draining the upper layer of clear water in sewage tank 1. Since this application is still equipped with float 5, it ensures that the inlet of the diversion pipe 4 is always in the clear water layer, avoiding the discharge of the bottom sludge. At the same time, when the clear water layer 14 drops to a certain height, the height of the clear water layer is detected by the second level gauge 11, and then the drainage stops.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sewage drainage device, comprising a sewage sedimentation tank (1), characterized in that, A drainage pool (2) is provided on one side of the sewage sedimentation tank (1). A drainage pipe (4) is provided on the drainage pool (2) and the sewage sedimentation tank (1). One end of the drainage pipe (4) is located in the sewage sedimentation tank (1), and the other end of the drainage pipe (4) is located in the drainage pool (2). The height of the drainage pipe (4) at the end of the sewage sedimentation tank is not lower than the height of the end of the drainage pipe (4) at the end of the drainage pool (2). The drainage pipe (4) is slidably connected to the sewage sedimentation tank (1) and the drainage pool (2). The drainage pool (2) is equipped with drainage pipes.

2. The sewage tank drainage device according to claim 1, characterized in that, The drainage pipe (4) includes a drainage pool section and a sewage sedimentation tank section, and the upper end of the drainage pool section is connected to the sewage sedimentation tank section.

3. A sewage tank drainage device according to claim 2, characterized in that, The length of the drainage tank section of the diversion pipe (4) is not less than 2.5 times the length of the sewage sedimentation tank section.

4. A sewage tank drainage device according to claim 2 or 3, characterized in that, The sewage sedimentation tank section of the diversion pipe (4) is equipped with a float (5), and the inlet of the sewage sedimentation tank section is located at the lower part of the float (5).

5. A sewage tank drainage device according to claim 1, characterized in that, The drainage pool (2) is provided with a support guide rod (6), and at least one sliding sleeve (7) is slidably connected to the support guide rod (6). The drainage pool section of the drainage pipe (4) is slidably connected to the support guide rod (6) through the sliding sleeve (7).

6. A sewage tank drainage device according to claim 1, characterized in that, The drainage pipe includes a drain pipe (12) and a water pump (8) connected to the drain pipe (12), with the inlet of the drain pipe (12) located at the bottom of the drainage pool (2).

7. A sewage tank drainage device according to claim 6, characterized in that, The outlet of the water pump (8) is connected to a water outlet pipe, and a valve (13) and a liquid level regulating valve (9) are provided between the water outlet pipe and the water pump (8).

8. A sewage tank drainage device according to claim 1, characterized in that, The drainage tank (2) is equipped with a first level gauge (10), and the sewage sedimentation tank (1) is equipped with a second level gauge (11).

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