Multi-stage sewage interception type drainage system of hangar
By setting up multi-stage sewage grilles and partition plates in the hangar drainage system, multi-stage interception and filtration of impurities is achieved, which solves the problem of blockage caused by impurities entering the drainage system, and improves the stability and cleaning convenience of the drainage system.
Patent Information
- Application Number
- CN202420972758.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In the existing hangar drainage system, impurities can easily cause blockage after entering the drainage ditch, especially when the drainage pipe is blocked, it is difficult to clean, affecting drainage efficiency.
A multi-stage sewage interception drainage system for the hangar is designed, including drainage ditch, discharge pipe, water seal well, oil separator pool and drainage ditch outside the hangar. Multi-stage sewage interception grilles (first, second, and third) are installed in the drainage ditch to intercept impurities of different sizes, and multi-stage filtration and drainage are realized through structures such as partition plates and floor drains.
Effectively intercept impurities in the wastewater in the hangar in the drainage ditch, facilitate cleaning, reduce impurities entering the subsequent drainage system, avoid blockage problems, and improve the stability and efficiency of the drainage system.
Smart Images
Figure CN222632419U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building drainage, and in particular relates to a multi-stage sewage interception type drainage system for a hangar. Background Art
[0002] In the existing hangar operation and management process, wastewater used to wash the floor in the hangar, oily wastewater generated by aircraft maintenance, and domestic sewage are all discharged into the hangar drainage ditch. Since the above-mentioned drainage contains various impurities, including gravel particles, maintenance accessories, etc., these impurities enter the hangar drainage ditch and further enter the drainage system such as drainage floor drains and drainage pipes. Since the drainage floor drains and drainage pipes are small in size, they are very easy to cause blockage. When the drainage floor drains and drainage pipes are blocked, especially when the discharge pipes are blocked, it is particularly difficult to clean because the drainage pipes cross the entire hangar outer floor to the water seal well and are long. If the impurities are trapped in the hangar drainage ditch, the risk of subsequent drainage system blockage will be greatly reduced, and the impurities will be easier to clean in the hangar drainage ditch. Utility Model Content
[0003] In order to solve the above problems, the utility model proposes a hangar multi-stage sewage interception type drainage system.
[0004] A multi-stage sewage interception drainage system for a hangar, characterized in that it includes a drainage ditch, a discharge pipe, a water seal well, a grease trap and a drainage ditch outside the hangar; the drainage ditch is arranged on both sides of the hangar, and includes a structure, the top surface of the ditch body is a plane, and the bottom surface is a slope body sloping downward toward the outside of the hangar, and a primary sewage interception grid and a secondary sewage interception grid vertically arranged in the same row are arranged in the middle of the ditch body, the upper layer is the primary sewage interception grid, and the lower layer is the secondary sewage interception grid, and the ditch body part before the two grids is the upstream drainage channel; a partition plate sloping upward is arranged from the intersection of the two grids, and the partition plate directly passes through the edge of the ditch body, and the part above the partition plate is the downstream drainage channel The water inlet space, the part below the partition plate is the downstream drainage channel, and a three-level sewage interception grille is vertically arranged at the end of the downstream drainage channel; the ditch body is covered with a cover plate, and a water inlet hole is opened on the cover plate on the downstream water inlet space; the first floor drain and the second floor drain are respectively arranged at the bottom of the downstream drainage channel, the first floor drain is located behind the second-level sewage interception grille, and the second floor drain is located behind the third-level sewage interception grille, and both floor drains are connected to the discharge pipe through a water trap drain pipe, all the discharge pipes are connected to the outside of the hangar and connected to the connecting drain pipe, and a water seal well is arranged at the connection, and the connecting drain pipe is then connected to the grease trap and the drainage ditch outside the hangar in turn.
[0005] Furthermore, the drainage ditch is a rectangular ditch made of concrete, with a net width and a net depth of not less than 0.4m and a bottom slope of less than 0.005.
[0006] Furthermore, the slope of the partition plate is not less than 0.005.
[0007] Furthermore, the first-level sewage interception grid and the second-level sewage interception grid are both steel grids, and the spacing between the grid bars is not more than 1 cm; the third-level sewage interception grid is a steel grid, and the spacing between the grid bars is not more than 0.5 cm.
[0008] Furthermore, the depth of the downstream water inlet space along the drainage direction is not less than 0.2m; the depth of the downstream drainage channel along the drainage direction is not less than 0.2m; the depth of the upstream drainage channel along the drainage direction is not less than 0.4m.
[0009] Furthermore, the specifications of the first floor drain and the second floor drain are not less than DN50.
[0010] Furthermore, the diameter of the discharge pipe is not less than DN150; the diameter of the connecting drain pipe is not less than DN300; the diameter of the drain pipe with a trap is the same as the specifications of the first floor drain and the second floor drain connected thereto.
[0011] The beneficial effects of the utility model are as follows: the drainage system can intercept wastewater in the hangar at multiple levels, and retain impurities in the wastewater in a multi-level sewage interception type drainage ditch for easy cleaning; at the same time, it solves the problem of impurities in the wastewater entering the subsequent drainage system and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a layout diagram of a multi-stage sewage interception drainage system for a hangar.
[0013] Figure 2 Schematic diagram of drainage ditch structure.
[0014] Figure 3 This is the AA cross-section of the drainage ditch.
[0015] Among them: 1-hangar, 2-drainage ditch, 21-cover, 22-ditch body, 23-partition plate, 24-downstream water inlet space, 25-downstream drainage channel, 26-upstream drainage channel, 27-first-level sewage interception grille, 28-second-level sewage interception grille, 29-third-level sewage interception grille, 3-first floor drain, 4-second floor drain, 5-discharge pipe, 6-water seal well, 7-grease trap, 8-drainage ditch outside the warehouse, 9-connecting drainage pipe, 10-drainage pipe with water trap. DETAILED DESCRIPTION
[0016] Embodiment 1: A multi-stage sewage interception drainage system for a hangar, comprising a drainage ditch 2, a discharge pipe 5, a water seal well 6, a grease trap 7 and an external drainage ditch 8. The drainage ditch 2 is arranged on both sides of the hangar 1, and is a rectangular ditch made of concrete, with a net width of 0.4m, a ditch depth of 0.4m at the start, a ditch depth of 0.6m at the end, and a length of 40m. The top surface of the ditch body 22 of the drainage ditch 2 is a plane, and the bottom surface is a slope body that slopes downward toward the outside of the hangar, with a slope of 0.005. A first-level sewage interception grille 27 and a second-level sewage interception grille 28 are vertically arranged in the same row in the middle of the ditch body 22, the upper layer is the first-level sewage interception grille 27, and the lower layer is the second-level sewage interception grille 28. The first-level sewage interception grille 27 and the second-level sewage interception grille 28 are both made of steel grilles, and the spacing between the bars is 1cm. The part of the ditch body 22 before the two grilles is the upstream drainage channel 26, and the upstream drainage channel 26 has a depth of 0.4m at the start of the drainage flow direction and a length of 20m. A partition plate 23 with an upward slope of 0.005 is set at the intersection of the two grilles. The partition plate 23 directly passes through the edge of the ditch body 22; the part above the partition plate 23 is the downstream water inlet space 24, and the part below the partition plate 23 is the downstream drainage channel 25. The depth of the downstream water inlet space 24 along the drainage flow direction is 0.2m at the beginning, 0.3m at the end, and 20m in length; the depth of the downstream drainage channel 25 along the drainage flow direction is 0.2m at the beginning, and 20m in length. A three-level sewage interception grille 29 is vertically set at the end of the downstream drainage channel 25. The three-level sewage interception grille 29 adopts a steel grille with a bar spacing of 0.5cm. The ditch body 22 is covered with a cover plate 21, and a water inlet hole is opened on the cover plate on the downstream water inlet space 24. The bottom of the downstream drainage channel 25 is provided with a first floor drain 3 and a second floor drain 4, respectively. The first floor drain 3 is located behind the secondary sewage interception grid 28, and the second floor drain 4 is located behind the tertiary sewage interception grid 29. The specifications of the two floor drains are both DN100. Both floor drains are connected to the discharge pipe 5 through a water trap drain pipe 10, and the specification of the water trap drain pipe 10 is also DN100. All discharge pipes 5 are connected to the outside of the hangar 1 and connected to the connecting drain pipe 9, and a water seal well 6 is provided at the connection. The specification of the connecting drain pipe 9 is DN300, and the connecting drain pipe 9 is then connected to the grease trap 7 and the drainage ditch 8 outside the hangar in turn.
[0017] The wastewater in the hangar 1 flows into the downstream water inlet space 24 through the water inlet hole on the cover plate 21, and then flows into the upstream drainage channel 26 along the slope and is partially blocked by the first-level interception grid 27, and then flows into the downstream drainage channel 25 after being partially blocked by the second-level interception grid 28. At this time, the impurities with a large volume and sinking to the bottom have been intercepted, and the wastewater without impurities at the bottom is discharged through the first floor drain 3, while the impurities floating on the water surface and with a small volume flow to the end of the downstream drainage channel 25 along the water flow, and the remaining impurities are intercepted by the third-level interception grid 29. Finally, the wastewater without impurities is discharged from the second floor drain 4, and then flows into the drainage ditch 9 outside the warehouse through the oil separator 7. After the wastewater is intercepted at multiple levels, the impurities in the wastewater are intercepted in the drainage ditch, which is easy to clean; at the same time, the problem of impurities in the wastewater entering the subsequent drainage system and causing blockage is solved.
Claims
1. A hangar multi-stage sewage interception drainage system, characterized by: It includes drainage ditches, discharge pipes, water seal wells, oil separators and drainage ditches outside the hangar; the drainage ditches are set on both sides of the hangar, which include a structure, the top surface of the ditch body is a plane, and the bottom surface is a slope body sloping downward toward the outside of the hangar. A first-level sewage interception grid and a second-level sewage interception grid are vertically arranged in the same row in the middle of the ditch body, the upper layer is the first-level sewage interception grid, and the lower layer is the second-level sewage interception grid. The ditch body part before the two grids is the upstream drainage channel; a partition plate sloping upward is set from the intersection of the two grids, and the partition plate goes straight to the edge of the ditch body. The part above the partition plate is the downstream water inlet space, and the part below the partition plate is the downstream water inlet space. The part is the downstream drainage channel, and a three-level sewage interception grid is vertically arranged at the end of the downstream drainage channel; the ditch body is covered with a cover plate, and a water inlet hole is opened on the cover plate on the downstream water inlet space; the first floor drain and the second floor drain are respectively arranged at the bottom of the downstream drainage channel, the first floor drain is located behind the second-level sewage interception grid, and the second floor drain is located behind the third-level sewage interception grid. Both floor drains are connected to the discharge pipe through a water trap drain pipe, all the discharge pipes are connected to the outside of the hangar and connected to the connecting drain pipe, and a water seal well is arranged at the connection, and the connecting drain pipe is then connected to the grease trap and the drainage ditch outside the hangar in turn.
2. A hangar multi-stage sewage interception drainage system as claimed in claim 1, characterized in that The drainage ditch is a rectangular ditch made of concrete, with a net width and net depth of not less than 0.4m and a bottom slope of less than 0.
005.
3. A hangar multi-stage sewage interception drainage system as claimed in claim 1, characterized in that The slope of the partition plate is not less than 0.
005.
4. A hangar multi-stage sewage interception drainage system as claimed in claim 1, characterized in that The first-level sewage interception grid and the second-level sewage interception grid are both steel grids, and the spacing between the grid bars is not more than 1 cm; the third-level sewage interception grid is a steel grid, and the spacing between the grid bars is not more than 0.5 cm.
5. The hangar multi-stage sewage interception drainage system as claimed in claim 1, characterized in that The depth of the downstream water inlet space along the drainage direction is not less than 0.2m; the depth of the downstream drainage channel along the drainage direction is not less than 0.2m; the depth of the upstream drainage channel along the drainage direction is not less than 0.4m.
6. A hangar multi-stage sewage interception drainage system as claimed in claim 1, characterized in that The specifications of the first floor drain and the second floor drain are not less than DN50.
7. The hangar multi-stage sewage interception drainage system as claimed in claim 1, characterized in that The diameter of the discharge pipe is not less than DN150; the diameter of the connecting drain pipe is not less than DN300; the diameter of the trap drain pipe is the same as the specifications of the first floor drain and the second floor drain connected thereto.