Device for solving unsmooth self-flowing drainage under complex condition with lower n-shaped bend and horizontal pipe
By introducing a positive pressure exhaust and negative pressure self-sealing pipeline structure into the wastewater hydrocyclone, the problem of poor gravity drainage under complex conditions of downward bends and horizontal pipes is solved, realizing smooth wastewater discharge and automatic gas-liquid separation, and reducing equipment complexity and cost.
Patent Information
- Application Number
- CN202422900542.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing wastewater hydrocyclones suffer from poor gravity drainage under complex conditions of downward bends and horizontal pipes, leading to frequent overflows in the wastewater collection tank. This fails to meet the discharge requirements for desulfurization wastewater and also causes air resistance and siphoning, creating a vicious cycle.
The device structure includes a first water seal pipe, a second water seal pipe, a first air resistance pipe, a second air resistance pipe, a first exhaust device, and a second exhaust device. Through positive pressure exhaust and negative pressure self-sealing, it achieves automatic gas-liquid separation, solves the air resistance and water seal phenomena, and ensures smooth drainage.
It enables automatic venting under negative and slightly positive pressure conditions, avoids the backflow of gas-liquid mixtures, ensures smooth wastewater discharge, solves the problem of poor gravity drainage, and reduces equipment complexity and cost.
Smart Images
Figure CN223548683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage equipment technology, and in particular to a device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes. Background Technology
[0002] The existing wastewater hydrocyclone collection tank is approximately 400 mm high.
[0003] When existing technology is used, the collected wastewater is from Figure 2 The first water seal pipe shown in the figure flows by gravity to the wastewater collection tank. In actual operation, the wastewater buffer tank overflows severely, and only two wastewater hydrocyclones can be opened, which cannot reach the predetermined four. This seriously affects the output of the wastewater hydrocyclone and cannot meet the discharge requirements of desulfurization wastewater.
[0004] When two or more wastewater cyclones are used, the flow rate is large, and the wastewater fills the first water seal pipe, the second water seal pipe, and the first air resistance pipe. The air in the second air resistance pipe cannot be discharged normally from the first air resistance pipe, the second water seal pipe, and the first water seal pipe. The second water seal pipe and the first air resistance pipe will form a water seal, and the air in the second air resistance pipe cannot be discharged, forming an air resistance. The reverse collision of air and water affects the flow rate of gravity-flowing wastewater and occasionally forms a siphon. The siphon has a suction force of 0.12 MPa. The storage capacity of the wastewater collection tank is far less than the amount of one siphon. After the siphon, the air re-enters the pipe, and the air resistance and water seal phenomena reappear. This cycle repeats, causing the wastewater collection tank to overflow frequently, and the air resistance and water seal phenomena reappear. This cycle repeats, causing the wastewater collection tank to overflow frequently, forming a vicious cycle.
[0005] Therefore, this utility model provides a device to solve the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes. Utility Model Content
[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes, comprising a wastewater collection tank.
[0008] The wastewater collection tank is equipped with a first water seal pipe and a second water seal pipe in sequence on one side, and the first water seal pipe and the second water seal pipe are vertically distributed.
[0009] A first air resistance pipe and a second air resistance pipe are installed sequentially on one side of the second water seal pipe, and the first air resistance pipe and the second air resistance pipe are vertically distributed.
[0010] A fourth conveying pipe and a fifth conveying pipe are sequentially installed on one side of the second air resistance pipe, and the fourth and fifth conveying pipes are vertically distributed.
[0011] A sixth conveying pipe is installed on one side of the fifth conveying pipe, and a wastewater buffer tank is installed on one side of the sixth conveying pipe.
[0012] A fourth conveying pipe is installed at the connection between the first water seal pipe and the second water seal pipe, and a fifth conveying pipe is installed at the connection between the first air resistance pipe and the second air resistance pipe.
[0013] In a preferred embodiment, a first conveying pipe, a second conveying pipe, and a third conveying pipe are sequentially installed between the second air-blocking pipe and the fourth conveying pipe. One end of the first conveying pipe is connected to the second air-blocking pipe, and one end of the third conveying pipe is connected to the fourth conveying pipe. The first and second conveying pipes are vertically distributed, as are the second and third conveying pipes. The wastewater collection tank and the wastewater buffer tank are connected through the first, second, and third conveying pipes.
[0014] The technical advantage of adopting the above-mentioned further solution is that the wastewater collection tank and the wastewater buffer tank are connected through the first conveying pipe, the second conveying pipe and the third conveying pipe.
[0015] In a preferred embodiment, a wastewater collector is installed on the side of the wastewater collection tank away from the first water seal pipe to assist in the collection and treatment of wastewater from different areas. An agitator extending to the outside is installed inside the wastewater buffer tank to assist in the stirring of the wastewater inside the buffer tank. A connecting pipe is installed between the wastewater buffer tank and the sixth conveying pipe to connect and convey the wastewater collection tank and the wastewater buffer tank.
[0016] The technical advantages of adopting the above-mentioned further solution are: the agitator assists in the stirring treatment inside the wastewater buffer tank, the wastewater collector assists in the collection treatment of wastewater from different areas, and the connecting pipe is used to transport and connect the wastewater collection tank and the wastewater buffer tank.
[0017] In a preferred embodiment, the first exhaust device includes a first straight-pipe buffer pipe and a first exhaust self-sealing device, and the second exhaust device includes a second straight-pipe buffer pipe and a second exhaust self-sealing device. The first straight-pipe buffer pipe and the second straight-pipe buffer pipe are used to solve the gas-liquid mixture formed by gas resistance and water seal during exhaust, and to separate it into gas and liquid. The gas rises and the liquid returns. The wastewater collection tank is equipped with a disassembly storage compartment, and different specifications of disassembly storage compartments can be replaced according to the actual use scenario.
[0018] The technical effect of adopting the above-mentioned further solution is that the first straight-pipe buffer pipe and the second straight-pipe buffer pipe are used to solve the gas-liquid mixture formed by gas resistance and water seal during exhaust, and the mixture is separated into gas and liquid. The gas rises and the liquid returns. Different specifications of disassembly and storage chambers can be replaced according to the actual use scenario.
[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0020] By setting up a first water seal pipe, a second water seal pipe, a first air resistance pipe, a second air resistance pipe, a first exhaust device, and a second exhaust device, positive pressure exhaust and negative pressure self-sealing are achieved during use. Unlike traditional exhaust valves, this device has a wide overall pressure range and is more suitable for negative and slightly positive pressures. Furthermore, the device can operate automatically without operation or adjustment, automatically separating gas and liquid during operation. The device is simple to manufacture and has a low cost. Even with complex piping conditions involving bends and horizontal pipes, the exhaust device of this invention, with its reasonable arrangement, completely solves the problem of poor gravity flow in similar process piping layouts. It is particularly advantageous in situations with unstable upstream flow, low potential energy, and no-power gravity flow conditions. Attached Figure Description
[0021] Figure 1 A schematic diagram of an improved structure of a device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes provided by this utility model;
[0022] Figure 2 This is a schematic diagram of the prior art structure of a device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes, which is provided by this utility model.
[0023] Legend:
[0024] 1. First water seal pipe; 2. Second water seal pipe; 3. First air resistance pipe; 4. Second air resistance pipe; 5. First conveying pipe; 6. Second conveying pipe; 7. Third conveying pipe; 8. Fourth conveying pipe; 9. Fifth conveying pipe; 10. Sixth conveying pipe; 11. Connecting pipe; 12. Wastewater buffer tank; 13. Agitator; 14. Wastewater collection tank; 15. Wastewater collector; 16. First exhaust device; 17. Second exhaust device. Detailed Implementation
[0025] 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.
[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a technical solution: a device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes, including a wastewater collection tank 14. A first water seal pipe 1 and a second water seal pipe 2 are sequentially installed on one side of the wastewater collection tank 14, and the first and second water seal pipes 1 and 2 are vertically distributed. A first air resistance pipe 3 and a second air resistance pipe 4 are sequentially installed on one side of the second water seal pipe 2, and the first and second air resistance pipes 3 and 4 are vertically distributed. A fourth conveying pipe 8 and a fifth conveying pipe 9 are sequentially installed on one side of the second air resistance pipe 4, and the fourth and fifth conveying pipes 8 and 9 are vertically distributed. A sixth conveying pipe 10 is installed on one side of the fifth conveying pipe 9, and a wastewater buffer tank 12 is installed on one side of the sixth conveying pipe 10. The first water seal pipe 1 and the second water seal pipe 2 are connected. The first water seal pipe 1 and the fourth conveying pipe 8 are installed at the connection point. The first air resistance pipe 3 and the second air resistance pipe 4 are connected to the first water seal pipe 1 and the fifth conveying pipe 9. By adding the first exhaust device 16 and the second exhaust device 17, positive pressure exhaust and negative pressure self-sealing are achieved during use. Unlike traditional exhaust valves, the overall pressure range is wide, from -0.3MPa to +∞, which is more advantageous for negative pressure and slightly positive pressure. At the same time, the device can be implemented automatically without operation or adjustment. It automatically separates gas and liquid during operation. The device is simple to manufacture and has a low cost. Under the complex conditions of pipelines with downward bends and horizontal pipes, the exhaust device of this invention is used and reasonably arranged to completely solve the problem of poor gravity flow in similar process pipelines. It is more advantageous in situations where the upstream flow is unstable and the potential energy is not high, and in situations without power gravity flow.
[0027] Going further, such as Figure 1 As shown: A first conveying pipe 5, a second conveying pipe 6, and a third conveying pipe 7 are installed sequentially between the second air resistance pipe 4 and the fourth conveying pipe 8. One end of the first conveying pipe 5 is connected to the second air resistance pipe 4, and one end of the third conveying pipe 7 is connected to the fourth conveying pipe 8. The first conveying pipe 5 and the second conveying pipe 6 are vertically distributed, and the second conveying pipe 6 and the third conveying pipe 7 are vertically distributed. The wastewater collection tank 14 and the wastewater buffer tank 12 are connected through the first conveying pipe 5, the second conveying pipe 6, and the third conveying pipe 7.
[0028] Going further, such as Figure 1As shown: In this scheme, a wastewater collector 15 is installed on the side of the wastewater collection tank 14 away from the first water seal pipe 1. The wastewater collector 15 assists in the collection and treatment of wastewater from different areas. An agitator 13 extending to the outside is installed inside the wastewater buffer tank 12. The agitator 13 assists in the stirring treatment inside the wastewater buffer tank 12. A connecting pipe 11 is installed between the wastewater buffer tank 12 and the sixth conveying pipe 10. The connecting pipe 11 is used to connect and convey wastewater collection tank 14 and wastewater buffer tank 12.
[0029] Going further, such as Figure 1 As shown, in this scheme, the first exhaust device 16 includes a first straight pipe buffer pipe and a first exhaust self-sealing device, and the second exhaust device 17 includes a second straight pipe buffer pipe and a second exhaust self-sealing device. The first straight pipe buffer pipe and the second straight pipe buffer pipe are used to solve the gas-liquid mixture formed by gas resistance and water seal during exhaust, and separate it into gas and liquid. The gas rises and the liquid returns. The wastewater collection tank 14 is equipped with a disassembly storage compartment. Different specifications of disassembly storage compartments can be replaced according to the actual use scenario.
[0030] Working principle:
[0031] like Figure 1 and Figure 2 As shown:
[0032] During use, the collected wastewater is... Figure 2 The first water seal pipe 1 shown in the figure flows by gravity to the wastewater collection tank 14. In actual operation, the wastewater buffer tank 12 overflows severely, and only two wastewater hydrocyclones can be opened, which cannot reach the predetermined four. This seriously affects the output of the wastewater hydrocyclone and cannot meet the discharge requirements of desulfurization wastewater.
[0033] When the two wastewater cyclones are turned on, the flow rate is small. The wastewater will enter the wastewater buffer tank 12 from the collection tank through the first water seal pipe 1, the second water seal pipe 2, the first air resistance pipe 3, the second air resistance pipe 4, the first conveying pipe 5, the second conveying pipe 6, the third conveying pipe 7, the fourth conveying pipe 8, the fifth conveying pipe 9, the sixth conveying pipe 10 and the connecting pipe 11. The water volume will not completely fill the pipes. Air will be discharged from the first water seal pipe 1 through the second air resistance pipe 4, the second air resistance pipe 4, the second water seal pipe 2, the first water seal pipe 1.
[0034] When two or more wastewater cyclones are opened, the flow rate is large, and the wastewater fills the first water seal pipe 1, the second water seal pipe 2, and the first air resistance pipe 3. The air in the second air resistance pipe 4 cannot be discharged normally from the first air resistance pipe 3, the second water seal pipe 2, and the first water seal pipe 1. The second water seal pipe 2 and the first air resistance pipe 3 will form a water seal, and the air in the second air resistance pipe 4 cannot be discharged, forming an air resistance. The reverse collision of air and water affects the flow rate of gravity-flowing wastewater and occasionally forms a siphon. The siphon has a suction force of 0.12 MPa. The storage capacity of the wastewater collection tank 14 is far less than the amount of one siphon. After the siphon, the air re-enters the pipe, and the air resistance and water seal phenomena reappear. This cycle repeats, causing the wastewater collection tank 14 to overflow frequently, and the air resistance and water seal phenomena reappear. This cycle repeats, causing the wastewater collection tank 14 to overflow frequently, forming a vicious cycle.
[0035] The following measures will be taken to address the aforementioned situations:
[0036] Increase the overall volume of the wastewater collection tank 14 to be used in conjunction with the wastewater collector 15;
[0037] Adding a first exhaust device 16 and a second exhaust device 17 solves the problems of air lock and water seal;
[0038] The first exhaust device 16 consists of a first straight pipe buffer pipe and a first exhaust self-sealing device, and the second exhaust device 17 consists of a second straight pipe buffer pipe and a second exhaust self-sealing device.
[0039] The first and second straight-pipe buffer pipes are used to resolve the gas-liquid mixture formed by gas resistance and water seal during exhaust, allowing it to separate into gas and liquid on its own, with the gas rising and the liquid returning.
[0040] The first and second exhaust self-sealing devices promptly discharge excess air and seal the system in time when a siphon negative pressure is formed at the bottom.
[0041] Verification of the above: Since the wastewater hydrocyclone is a finished product, its implementation is impossible due to limited on-site layout, and therefore not advisable.
[0042] Through experiments and on-site implementation, the water seal and air resistance phenomena have been completely resolved, the siphon drainage is smooth, and the overflow problem of the wastewater collection tank has been completely solved.
[0043] By incorporating the first exhaust device 16 and the second exhaust device 17, positive pressure exhaust and negative pressure self-sealing are achieved during use. Unlike traditional exhaust valves, the overall pressure range is wide, from -0.3MPa to +∞, making it more advantageous for negative and slightly positive pressure applications. Furthermore, the device can operate automatically without operation or adjustment, automatically separating gas and liquid during operation. The device is simple to manufacture and has a low cost. When the pipeline has complex conditions such as downward bends and horizontal pipes, the exhaust device of this invention, with its reasonable arrangement, completely solves the problem of poor gravity flow in similar process pipelines. It is particularly advantageous in situations with unstable upstream flow, low potential energy, and no-power gravity flow conditions.
[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes, comprising a wastewater collection tank (14), a first venting device (16), and a second venting device (17), characterized in that, The wastewater collection tank (14) is equipped with a first water seal pipe (1) and a second water seal pipe (2) in sequence on one side, and the first water seal pipe (1) and the second water seal pipe (2) are vertically distributed. A first air resistance pipe (3) and a second air resistance pipe (4) are installed sequentially on one side of the second water seal pipe (2), and the first air resistance pipe (3) and the second air resistance pipe (4) are vertically distributed. A fourth conveying pipe (8) and a fifth conveying pipe (9) are sequentially installed on one side of the second air resistance pipe (4), and the fourth conveying pipe (8) and the fifth conveying pipe (9) are vertically distributed; A sixth conveying pipe (10) is installed on one side of the fifth conveying pipe (9), and a wastewater buffer tank (12) is installed on one side of the sixth conveying pipe (10). The first water seal pipe (1) and the second water seal pipe (2) are connected by a fourth conveying pipe (8), and the first air resistance pipe (3) and the second air resistance pipe (4) are connected by a fifth conveying pipe (9).
2. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 1, characterized in that: A first conveying pipe (5), a second conveying pipe (6), and a third conveying pipe (7) are installed sequentially between the second air resistance pipe (4) and the fourth conveying pipe (8). One end of the first conveying pipe (5) is connected to the second air resistance pipe (4), and one end of the third conveying pipe (7) is connected to the fourth conveying pipe (8).
3. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 2, characterized in that: The first conveying pipe (5) and the second conveying pipe (6) are vertically distributed, and the second conveying pipe (6) and the third conveying pipe (7) are vertically distributed.
4. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 1, characterized in that: Wastewater collector (15) is installed on the side of the wastewater collection tank (14) away from the first water seal pipe (1).
5. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 1, characterized in that: The wastewater buffer tank (12) is equipped with an agitator (13) that extends to the outside.
6. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 5, characterized in that: A connecting pipe (11) is installed between the wastewater buffer tank (12) and the sixth conveying pipe (10).
7. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 1, characterized in that: The first exhaust device (16) includes a first straight pipe buffer pipe and a first exhaust self-sealing device.
8. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 1, characterized in that: The second exhaust device (17) includes a second straight pipe buffer pipe and a second exhaust self-sealing device.
9. The device for solving the problem of poor gravity drainage under complex conditions with downward bends and horizontal pipes as described in claim 4, characterized in that: The wastewater collection tank (14) is equipped with a disassembly storage compartment.