A multifunctional drainage well for water delivery pipeline and its use method

Abstract

The present invention discloses a multifunctional drainage well for a water pipeline, including a water pipeline, a drainage pipeline, a pressurized drainage pipeline, a drainage valve, a fixed energy dissipator, a check valve, a submersible pump, a drainage port, and a drainage well. The drainage valve, the fixed energy dissipator, and the check valve are located in a dry well of the drainage well, the submersible pump is located in a wet well of the drainage well, and the drainage valve is arranged on the drainage pipeline. Also disclosed is a method for using the multifunctional drainage well for a water pipeline. The multifunctional drainage well for a water pipeline of the present invention and the method for using the same can achieve drainage of two water pipelines using a common drainage well, can achieve two drainage modes of gravity drainage and pressurized drainage, can achieve mutual communication between water pipelines, and can also use a water intake to fill the water pipeline with water. The present invention has a simple structure, is safe and reliable, and has a low cost.

Description

Technical Field

[0001] A multifunctional drainage well for a water pipeline and a method of using the same are mainly used in buried water pipeline projects such as water conservancy and municipal administration. Two water pipelines can share a drainage well for drainage, and both gravity drainage and pressurized drainage can be achieved. Water pipelines can be interconnected, and a water intake can be used to fill the water pipeline with water. The multifunctional drainage well and method of using the same are provided. Background Art

[0002] In existing water conservancy, municipal and other buried pipeline projects, drainage wells usually include two well chambers: valve wells and drainage wet wells. The drainage valve is installed on the drainage branch pipe and arranged in the valve well. The distance between the valve well and the drainage wet well is usually within 10 meters. After the drainage valve is opened, the water in the water pipeline flows into the drainage wet well, and the water is discharged by gravity or by using a mobile pump. This type of conventional drainage well has the following disadvantages:

[0003] First, each water pipeline drainage requires two relatively independent well chambers, a valve well and a wet well. When multiple water pipelines are connected in parallel to supply water, the number of well chambers is large, the area occupied is large, the construction period is long, and the project investment is high.

[0004] Second, the water in the water pipeline is first collected in the wet well and then discharged. The drainage rate is low and the high-pressure water energy in the pipeline is not reasonably utilized.

[0005] Third, when the water pressure in the drainage pipe is too high, the water flows quickly into the drainage wet well, and the high-speed water flows out along the well wall and rushes out of the wet well. The direction and flow of the water cannot be effectively controlled, and the high-pressure water flow can easily cause personal injury to maintenance personnel.

[0006] In addition, when using the existing drainage well technology, in order to meet the maintenance requirements of the water pipeline, it is often necessary to set up a separate connecting valve with the same diameter as the main pipeline, which makes the pipeline layout complicated and the cost high. When the water pipeline is in the initial operation, it is usually necessary to set up a separate filling port to fill the water pipeline. The number of filling ports directly affects the efficiency of pipeline filling. Summary of the invention

[0007] The purpose of the present invention is to address the deficiencies in the prior art and provide a multifunctional drainage well for a water pipeline and a method of using the same, which can achieve drainage of two water pipelines using a common drainage well, and can achieve both gravity drainage and pressurized drainage. The water pipelines can be connected by opening and closing valves, and the water intake can be used to fill the water pipelines with water. The present invention has a simple structure, is safe and reliable, and has a low cost.

[0008] The technical solutions of the present invention are as follows:

[0009] A multifunctional drainage well for a water delivery pipeline comprises a first water delivery pipeline (11), a second water delivery pipeline (12), a first drainage pipeline (21), a second drainage pipeline (22), a third drainage pipeline (31), a pressurized drainage pipeline (32), a fourth drainage pipeline (41), a first drainage valve (51), a second drainage valve (52), a third drainage valve (53), a fourth drainage valve (54), a fixed energy dissipator (6), a check valve (7), a submersible pump (8), and a drainage port (9). The drainage well comprises a wet well and a dry well. The first drainage valve (51), the second drainage valve (52) and the third drainage valve (53) are respectively installed on the first drainage pipe (21), the second drainage pipe (22) and the third drainage pipe (31). The check valve (7) is installed on the pressurized drainage pipe (32). The submersible pump (8) is installed at the end of the pressurized drainage pipe (32) and is located in the wet well of the drainage well. The fixed energy dissipator (6) and the fourth drainage valve (54) are installed on the fourth drainage pipe (41). The drainage port (9) is located at the end of the fourth drainage pipe (41). The third drainage pipe (31) is connected to the wet well of the drainage well. The first drainage valve (51), the second drainage valve (52), the fixed energy dissipator (6), the third drainage valve (53), the fourth drainage valve (54) and the check valve (7) are located in the dry well of the drainage well.

[0010] The first water supply pipeline (11) and the second water supply pipeline (12) are connected to the drainage well through the first drainage pipeline (21) and the second drainage pipeline (22), and after merging, they form a drainage passage through the fourth drainage pipeline (41) and the drainage port (9), so that the two water supply pipelines can share a drainage well for drainage.

[0011] When the water pressure elevation in the pipeline is higher than the elevation of the drain outlet and the water in the pipeline can be discharged to the drain outlet by gravity, the first drain valve (51), the second drain valve (52) and the fourth drain valve (54) are opened, and the third drain valve (53) and the submersible pump (8) are closed, and the water delivery pipeline can form a gravity drainage passage through the fixed energy dissipator (6), the fourth drain valve (54), the fourth drain pipeline (41) and the drain outlet (9).

[0012] When the water pressure elevation in the pipeline is lower than the elevation of the drain outlet and the water in the pipeline cannot be discharged to the drain outlet by gravity, the fourth drain valve (54) is closed, and the first drain valve (51), the second drain valve (52), the third drain valve (53), and the submersible pump (8) are opened. The water delivery pipeline can form a pressurized drainage passage through the fixed energy dissipator (6), the third drain valve (53), the third drainage pipeline (31), the check valve (7), the pressurized drainage pipeline (32), the submersible pump (8), the fourth drainage pipeline (41) and the drain outlet (9).

[0013] When one of the first water pipeline (11) and the second water pipeline (12) needs to be repaired, the first drainage valve (51) and the second drainage valve (52) are opened, and the third drainage valve (53) and the fourth drainage valve (54) are closed, so that a water transmission passage is formed between the first water pipeline (11) and the second water pipeline (12).

[0014] The method for using the multifunctional drainage well of the water delivery pipeline includes a drainage method, a pipeline connection method and a water filling method, wherein the drainage method of the multifunctional drainage well of the water delivery pipeline includes the following steps:

[0015] A. When the water pressure elevation in the pipeline is higher than the elevation of the drain outlet and the water in the pipeline can be discharged to the drain outlet by gravity, the first drain valve (51), the second drain valve (52) and the fourth drain valve (54) are opened, and the third drain valve (53) and the submersible pump (8) are closed. The first water delivery pipeline (11) and the second water delivery pipeline (12) can form a gravity drainage passage through the fixed energy dissipator (6), the fourth drain valve (54), the fourth drain pipeline (41) and the drain outlet (9).

[0016] B. When the water pressure elevation in the pipeline is lower than the elevation of the drain outlet and the water in the pipeline cannot be discharged to the drain outlet by gravity, the fourth drain valve (54) is closed, the first drain valve (51), the second drain valve (52), the third drain valve (53), and the submersible pump (8) are opened, and the first water delivery pipeline (11) and the second water delivery pipeline (12) can form a pressurized drainage passage through the fixed energy dissipator (6), the third drain valve (53), the third drainage pipeline (31), the check valve (7), the pressurized drainage pipeline (32), the submersible pump (8), the fourth drainage pipeline (41) and the drain outlet (9).

[0017] The pipeline connection method of the multifunctional drainage well of the water delivery pipeline comprises the following steps:

[0018] When one of the first water pipeline (11) or the second water pipeline (12) needs to be repaired, the first drainage valve (51) and the second drainage valve (52) are opened, and the third drainage valve (53) and the fourth drainage valve (54) are closed, so that a water transmission passage is formed between the first water pipeline (11) and the second water pipeline (12).

[0019] The method for filling a multifunctional drainage well of a water pipeline comprises the following steps: when the first water pipeline (11) or the second water pipeline (12) needs to be filled with water, the first drainage valve (51), the second drainage valve (52), and the fourth drainage valve (54) are opened, the third drainage valve (53) and the submersible pump (8) are closed, and the drainage port (9) can form a water filling passage between the first water pipeline (11) and the second water pipeline (12) through the fourth drainage pipeline (41), the fourth drainage valve (54), the fixed energy dissipator (6), and the first water pipeline (11).

[0020] Compared with the prior art, the present invention has the following advantages and effects:

[0021] First, multiple water pipelines share one drainage well for drainage, effectively reducing the number of drainage wells and saving project investment.

[0022] Second, the pressure elevation in the pipeline can be used for gravity drainage, or the equipped submersible pump can be used for pressurized drainage when the pressure is insufficient, thus realizing multiple drainage methods and saving energy.

[0023] Third, pipeline drainage is safe and reliable. The fixed energy dissipator can dissipate excess water energy and reduce the flow rate of water in the pipeline. It will not cause damage to personnel and surrounding land and facilities due to excessive drainage pressure.

[0024] Fourth, when one of the water pipelines needs to be repaired, the two water pipelines can be connected by opening and closing the drainage valve, replacing the connecting valve, streamlining the layout of the water pipelines, and saving investment.

[0025] Fifth, you can use the water source near the drain outlet and use equipment such as water pumps to fill the water pipes with water to improve the filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Instructions attached Figure 1 It is a structural schematic diagram of the present invention.

[0027] In the figure, numbers 11 and 12 are the first water supply pipeline and the second water supply pipeline, 21, 22, 31 and 41 are the first drainage pipeline, the second drainage pipeline, the third drainage pipeline and the fourth drainage pipeline, 32 is the pressurized drainage pipeline, 51, 52, 53 and 54 are the first drainage valve, the second drainage valve, the third drainage valve and the fourth drainage valve, 6 is a fixed energy dissipator, 7 is a check valve, 8 is a submersible pump and 9 is a drainage outlet. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 , a clear and complete description of the embodiments of the present invention is given.

[0029] As shown in the accompanying drawings, the present invention provides a multifunctional drainage well for a water supply pipeline and a method for using the same, comprising a first water supply pipeline (11), a second water supply pipeline (12), a first drainage pipeline (21), a second drainage pipeline (22), a third drainage pipeline (31), a pressurized drainage pipeline (32), a fourth drainage pipeline (41), a first drainage valve (51), a second drainage valve (52), a third drainage valve (53), a fourth drainage valve (54), a fixed energy dissipator (6), a check valve (7), a submersible pump (8), and a drainage outlet (9).

[0030] The drainage well comprises a wet well and a dry well. A first drainage valve (51), a second drainage valve (52), a third drainage valve (53), a fourth drainage valve (54), a fixed energy dissipator (6), and a check valve (7) are located in the dry well of the drainage well. The third drainage pipe (31) is connected to the wet well of the drainage well. A submersible pump (8) is installed at the end of the pressurized drainage pipe (32) and is located in the wet well of the drainage well. The first drainage valve (51), the second drainage valve (52), the third drainage valve (53), and the fourth drainage valve (54) are respectively arranged on the first drainage pipe (21), the second drainage pipe (22), the third drainage pipe (31), and the fourth drainage pipe (41). The check valve (7) is installed on the pressurized drainage pipe (32). The fixed energy dissipator (6) is installed on the fourth drainage pipe (41). The drainage port (9) is located at the end of the fourth drainage pipe (41).

[0031] The steps of the water delivery pipeline multifunctional drainage well drainage method in this embodiment are as follows:

[0032] A. When the water pressure elevation in the pipeline is higher than the elevation of the drainage outlet and the water in the pipeline can be discharged to the drainage outlet by gravity, the first drainage valve (51), the second drainage valve (52) and the fourth drainage valve (54) are opened, and the third drainage valve (53) and the submersible pump (8) are closed. The first water delivery pipeline (11) and the second water delivery pipeline (12) can form a gravity drainage passage through the fixed energy dissipator (6), the fourth drainage valve (54), the fourth drainage pipeline (41) and the drainage outlet (9), so that the two water delivery pipelines can be drained by gravity to a drainage well, and the surplus water energy can be effectively eliminated, thereby reducing the flow rate of water in the pipeline.

[0033] B. When the water pressure elevation in the pipeline is lower than the elevation of the drainage outlet and the water in the pipeline cannot be discharged to the drainage outlet by gravity, the fourth drainage valve (54) is closed, and the first drainage valve (51), the second drainage valve (52), the third drainage valve (53), and the submersible pump (8) are opened. The first water delivery pipeline (11) and the second water delivery pipeline (12) can form a pressurized drainage passage between the fixed energy dissipator (6), the third drainage valve (53), the third drainage pipeline (31), the check valve (7), the pressurized drainage pipeline (32), the submersible pump (8), the fourth drainage pipeline (41) and the drainage outlet (9), so that pressurized drainage of the two water delivery pipelines to one drainage well can be achieved.

[0034] The steps of the method for connecting a multifunctional drainage well with a water delivery pipeline in this embodiment are as follows:

[0035] When one of the first water pipeline (11) or the second water pipeline (12) needs to be repaired, the first drainage valve (51) and the second drainage valve (52) are opened, and the third drainage valve (53) and the fourth drainage valve (54) are closed, so that a water transmission passage is formed between the first water pipeline (11) and the second water pipeline (12), and different water pipelines can be connected, replacing the connecting valve, simplifying the layout of the water pipelines, and saving investment.

[0036] The steps of the method for filling the multifunctional drainage well of the water delivery pipeline in this embodiment are as follows:

[0037] When the first water pipeline (11) or the second water pipeline (12) needs to be filled with water, the first drainage valve (51), the second drainage valve (52) and the fourth drainage valve (54) are opened, and the third drainage valve (53) and the submersible pump (8) are closed. The drainage port (9) can form a water filling passage through the fourth drainage pipeline (41), the fourth drainage valve (54), the fixed energy dissipator (6) and the first water pipeline (11) and the second water pipeline (12). Water from a water source near the drainage port can be filled into the water pipeline through a water pump and other equipment.

[0038] The device of this embodiment is simple, practical and reliable, and the drainage method is flexible and safe, saving engineering investment.

[0039] Through the above description, those skilled in the art can already implement it.

[0040] It should be noted that the specific embodiments described in this specification may have different names for the devices and components, and the above content described in this specification is only an example of the structure of the present invention. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Technicians in the technical field to which the present invention belongs can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A multifunctional drainage well for a water pipeline, comprising a first water pipeline (11), a second water pipeline (12), a first drainage pipeline (21), a second drainage pipeline (22), a third drainage pipeline (31), a pressurized drainage pipeline (32), a fourth drainage pipeline (41), a first drainage valve (51), a second drainage valve (52), a third drainage valve (53), a fourth drainage valve (54), a fixed energy dissipator (6), a check valve (7), a submersible pump (8), and a drainage port (9), characterized in that: The drainage well comprises a wet well and a dry well. The first drainage valve (51), the second drainage valve (52) and the third drainage valve (53) are respectively installed on the first drainage pipe (21), the second drainage pipe (22) and the third drainage pipe (31). The check valve (7) is installed on the pressurized drainage pipe (32). The submersible pump (8) is installed at the end of the pressurized drainage pipe (32) and is located in the wet well of the drainage well. The fixed energy dissipator (6) and the fourth drainage valve (54) are installed on the fourth drainage pipe (41). The drainage port (9) is located at the end of the fourth drainage pipe (41). The third drainage pipe (31) is connected to the wet well of the drainage well. The other end of the third drainage pipe (31) is connected to the fourth drainage pipe (41). The first drainage valve (51), the second drainage valve (52), the fixed energy dissipator (6), the third drainage valve (53), the fourth drainage valve (54) and the check valve (7) are located in the dry well of the drainage well. The first water supply pipeline (11) and the second water supply pipeline (12) are connected to the dry well of the drainage well through the first drainage pipeline (21) and the second drainage pipeline (22) respectively, and after merging, they form a drainage passage through the fourth drainage pipeline (41) and the drainage port (9), and the first water supply pipeline (11) and the second water supply pipeline (12) use the same drainage well for drainage.

2. The multifunctional drainage well for water pipeline according to claim 1, characterized in that: When the water pressure elevation in the pipeline is higher than the elevation of the drain outlet, the water in the pipeline flows by gravity to the drain outlet. By opening and closing the valve, the water pipeline forms a gravity drainage passage through the fixed energy dissipator (6), the fourth drainage valve (54), the fourth drainage pipeline (41) and the drain outlet (9).

3. The multifunctional drainage well for water pipeline according to claim 1, characterized in that: When the water pressure elevation in the pipeline is lower than the elevation of the drain outlet and the water in the pipeline cannot flow to the drain outlet by gravity, the valve is opened and closed, and the water pipeline passes through the fixed energy dissipator (6), the third drain valve (53), the third drain pipeline (31), the check valve (7), the pressurized drain pipeline (32), the submersible pump (8), the fourth drain pipeline (41) and the drain outlet (9) to form a pressurized drain passage.

4. The multifunctional drainage well for water delivery pipeline according to claim 1, characterized in that: When one of the first water pipeline (11) and the second water pipeline (12) needs to be repaired, a water pipeline is formed between the first water pipeline (11) and the second water pipeline (12) by opening and closing the valve.

5. The method for using the multifunctional drainage well of a water pipeline includes a drainage method, a pipeline connection method and a water filling method, wherein the drainage method of the multifunctional drainage well of a water pipeline adopts the multifunctional drainage well of a water pipeline according to any one of claims 1 to 4, characterized in that: Here are the steps: A. When the water pressure elevation in the pipeline is higher than the elevation of the drain outlet and the water in the pipeline is discharged to the drain outlet by gravity, the first drain valve (51), the second drain valve (52) and the fourth drain valve (54) are opened, and the third drain valve (53) and the submersible pump (8) are closed, so that the first water delivery pipeline (11) and the second water delivery pipeline (12) can form a gravity drainage passage through the fixed energy dissipator (6), the fourth drain valve (54), the fourth drain pipeline (41) and the drain outlet (9); B. When the water pressure elevation in the pipeline is lower than the elevation of the drain outlet and the water in the pipeline cannot be discharged to the drain outlet by gravity, the fourth drain valve (54) is closed, the first drain valve (51), the second drain valve (52), the third drain valve (53), and the submersible pump (8) are opened, and the first water delivery pipeline (11) and the second water delivery pipeline (12) can form a pressurized drainage passage through the fixed energy dissipator (6), the third drain valve (53), the third drainage pipeline (31), the check valve (7), the pressurized drainage pipeline (32), the submersible pump (8), the fourth drainage pipeline (41) and the drain outlet (9).

6. A pipeline interconnection method for a multifunctional drainage well of a water pipeline, using the multifunctional drainage well of a water pipeline as claimed in claim 1 or 4, characterized in that: Here are the steps: When one of the first water pipeline (11) or the second water pipeline (12) needs to be repaired, the first drainage valve (51) and the second drainage valve (52) are opened, and the third drainage valve (53) and the fourth drainage valve (54) are closed, so that a water transmission passage is formed between the first water pipeline (11) and the second water pipeline (12).

7. A method for filling a multifunctional drainage well of a water pipeline, using the multifunctional drainage well of a water pipeline as claimed in claim 1, 2 or 4, characterized in that: The steps are as follows: when the first water pipeline (11) or the second water pipeline (12) needs to be filled with water, the first drainage valve (51), the second drainage valve (52), and the fourth drainage valve (54) are opened, and the third drainage valve (53) and the submersible pump (8) are closed, so that the drainage port (9) can form a water filling passage through the fourth drainage pipeline (41), the fourth drainage valve (54), the fixed energy dissipator (6) and the first water pipeline (11) and the second water pipeline (12).

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