Multi-purpose valve well not going out of ground and construction method

Abstract

The invention discloses a multipurpose valve well not going out of the ground and a construction method, relates to the technical field of valve wells, and aims to solve the problems that an existing drainage pipe network accessory structure is single in function, gate valve connection construction is complex, and plate gate hoist installation is limited. The well chamber is divided into an upper area and a lower area which are respectively a control area and a communication area; an inspection manhole and a cover plate are arranged on the small platform; the communicating area is communicated with a water inlet pipeline and a water outlet pipeline, a plate gate is arranged at the communicating position of the communicating area and the water outlet pipeline, and a hoist for controlling the plate gate to operate is installed in the control area. Through cooperation of multiple groups of water inlet pipelines, water outlet pipelines and plate gates, the water flow direction and the water quantity can be flexibly regulated and controlled, the requirements of water inlet quantity distribution, rainwater drainage adjustment and the like of different sewage treatment plants are met, and the overall dredging capacity of a drainage system is improved.

Description

Technical Field

[0001] This invention relates to the field of valve well technology, specifically to a multi-purpose valve well that does not need to be brought to the surface and its construction method. Background Technology

[0002] In the operation of urban drainage systems, drainage pipes often exhibit complex layouts due to differences in regional functions and construction timing. Furthermore, drainage from the same area needs to be transported to different sewage treatment plants or stormwater outfalls, placing high demands on water flow allocation. To achieve effective allocation, control facilities must be installed at important pipe connections; however, existing technologies face the following key challenges:

[0003] The auxiliary structures are single-function: The common auxiliary structures of the drainage pipeline (such as gate valve wells, inspection wells and sedimentation wells) are simple in construction and can only realize a single function (such as gate valve wells only control the on and off, and inspection wells only facilitate maintenance). They cannot simultaneously control the flow rate and direction of water and inspect the pipeline within a single structure. Multiple facilities are required to cooperate, which increases the complexity of the pipeline network layout and construction costs.

[0004] Gate valve connection construction is complex: Drainage pipes are mostly made of concrete pipes. If gate valves are used for flow control, they need to be connected to the gate valves through steel pipes. This results in the need to partially replace the pipe material in new or renovation projects, expanding the construction scope, increasing the construction difficulty, and significantly increasing investment costs.

[0005] Installation of gate hoists is limited: Although gate hoists are suitable for the installation of inlet and outlet pipes of different materials, their hoists need to be installed separately above the pipes. However, urban underground facilities (such as pipelines and cables) are dense, and most drainage pipes are laid under roads, requiring ancillary structures to remain "below ground level." This results in a lack of reasonable installation space for gate hoists, making it impossible to meet actual application needs.

[0006] In summary, existing technologies struggle to balance drainage control needs, ease of construction, and limitations of underground space. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the existing defects and provide a multi-purpose valve well and construction method that does not need to be brought to the surface, which can effectively solve the problems in the background art.

[0008] To achieve the above objectives, the present invention discloses a multi-purpose valve well that does not need to be exposed to the surface. The technical solution adopted is that it includes a well chamber, and a small platform is provided in the well chamber to divide the well chamber into upper and lower areas, which are a control area and a communication area, respectively.

[0009] The small platform is provided with a maintenance manhole that connects the control area and the communication area, and the small platform is also provided with a cover plate to block the maintenance manhole.

[0010] The connecting area is connected to the inlet pipe and the outlet pipe, and a gate is provided at the connection with the outlet pipe. The control area is equipped with a gate opener to control the operation of the gate.

[0011] By coordinating multiple sets of inlet and outlet pipes with gate valves, the water flow direction and volume can be flexibly adjusted to meet the needs of different sewage treatment plants for inlet water distribution and rainwater discharge regulation, thereby improving the overall drainage capacity of the drainage system.

[0012] As a preferred technical solution of the present invention, both the inlet pipe and the outlet pipe are provided with multiple sets, and the elevation of the inlet pipe is not lower than the elevation of the outlet pipe. A plate valve is installed at the connection between the outlet pipe and the well chamber to adapt to pipes of different materials without replacing the steel pipe. The connection is then reinforced with secondary casting to make the plate valve fit more closely to the inner wall of the well chamber, thereby improving the sealing stability and preventing leakage.

[0013] As a preferred embodiment of the present invention, a guide channel is provided at the bottom of the well chamber, and the guide channel is used to guide the water flow of the water inlet pipe.

[0014] As a preferred technical solution of the present invention, the top of the well chamber is also provided with an operating manhole that communicates with the control area. By setting a small platform in the well chamber, the well chamber is divided into a control area and a communication area, which solves the installation problem of the hoist in the dense underground environment. At the same time, the operating manhole and maintenance manhole take into account the convenience of operation and maintenance.

[0015] As a preferred embodiment of the present invention, a secondary casting zone is provided between the inner wall of the well chamber and the gate. Through the secondary casting zone, the gate and the inner wall of the well chamber fit together more closely, and the sealing stability between the water outlet pipe and the well chamber is increased.

[0016] As a preferred embodiment of the present invention, the hoist and the maintenance manhole are misaligned.

[0017] A construction method for a multi-purpose valve well that does not need to be exposed to the surface includes the following steps:

[0018] S1, excavate the foundation pit at the preset location, construct the concrete foundation at the bottom of the foundation pit, and complete the foundation preparation of the well chamber;

[0019] S2, pour or build the well chamber on the foundation at the bottom of the pit, so that the well chamber forms a pre-set cavity structure;

[0020] S3, install inlet and outlet pipes below the well chamber, so that both inlet and outlet pipes are connected to the well chamber; at the same time, install a gate at the connection between the outlet pipe and the well chamber, and fix the gate initially; by using the gate and the hoist in combination, the flow rate of sewage can be controlled.

[0021] S4. Construct a small platform inside the well chamber to divide the cavity of the well chamber into two independent areas, namely the control area located above and the connecting area located below. Reserve a maintenance manhole on the small platform. After the concrete of the small platform is cured, install a cover plate that is compatible with the maintenance manhole to realize the opening and closing of the maintenance manhole.

[0022] S5, Install a hoist in the control area of ​​the well chamber, and connect the hoist to the gate in the connecting area through a transmission component to ensure that the hoist can control the opening and closing of the gate;

[0023] S6. The manhole containing the gate and the outlet pipe is poured to form a secondary pouring area. After it solidifies, a water flow test is conducted to test the sealing performance of the valve well and the operation function of the gate and hoist, thus completing the construction.

[0024] As a preferred technical solution of the present invention, after the construction is completed, the top of the well chamber is sealed and an operating manhole is reserved so that the operator can operate the hoist through the operating manhole. The hoist is controlled manually or electrically. The manual method includes the operator entering the control area through the operating manhole and manually operating the hoist, or extending an operating rod through the operating manhole to operate the hoist. The electric method includes remote control, or entering the control area and controlling the operation of the hoist through the control panel on the hoist.

[0025] As a preferred technical solution of the present invention, in S3, a guide channel is constructed simultaneously on the inner wall at the bottom of the well chamber; the direction of the guide channel is adapted to the water flow outlet direction of the inlet pipe, and is used to guide the water discharged from the inlet pipe to flow towards the outlet pipe.

[0026] As a preferred technical solution of the present invention, in S3, multiple sets of inlet pipes and outlet pipes are provided, and during installation, the installation elevation of the inlet pipe is not lower than that of the outlet pipe by means of bracket positioning or elevation measurement.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention achieves control of sewage flow by using a combination of a gate and a hoist; it guides the flow of sewage by setting a guide channel at the bottom of the well chamber; it solves the installation problem of the hoist in dense underground environments by setting a small platform in the well chamber to divide the well chamber into a control area and a communication area, while also providing operation and maintenance manholes for convenient operation and maintenance; a plate valve is installed at the connection between the outlet pipe and the well chamber, which is compatible with pipes of different materials, eliminating the need to replace steel pipes, and the connection is reinforced by secondary casting to make the gate fit better with the inner wall of the well chamber, thereby improving sealing stability and preventing leakage.

[0028] By coordinating multiple sets of inlet and outlet pipes with gate valves, the water flow direction and volume can be flexibly adjusted to meet the needs of different sewage treatment plants for inlet water distribution and rainwater discharge regulation, thereby improving the overall drainage capacity of the drainage system. Attached Figure Description

[0029] Figure 1 This is a lower plan view of the first embodiment of the present invention;

[0030] Figure 2 This is a layer plan view of the first embodiment of the present invention;

[0031] Figure 3 This is a top-level plan view of the first embodiment of the present invention;

[0032] Figure 4 This is a cross-sectional view AA of the first embodiment of the present invention;

[0033] Figure 5 This is a cross-sectional view of the first embodiment of the present invention (BB).

[0034] Figure 6 This is a lower plan view of the second embodiment of the present invention.

[0035] In the diagram: 1. Inlet pipe; 2. Outlet pipe; 3. Well chamber; 4. Gate; 5. Secondary pouring area; 6. Small platform; 7. Hoist; 8. Cover plate; 9. Operator manhole; 10. Maintenance manhole; 11. Diversion channel; 31. Control area; 32. Connecting area. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1

[0038] like Figures 1 to 5 As shown, this invention discloses a multi-purpose valve well that does not need to be brought to the surface. The technical solution adopted includes a well chamber 3 and a small platform 6.

[0039] Well chamber 3 is a closed cavity structure with a small platform 6 inside, which divides well chamber 3 into upper and lower independent areas, namely the upper control area 31 and the lower connecting area 32.

[0040] The small platform 6 is equipped with a maintenance manhole 10 to connect the control area 31 and the connecting area 32. The maintenance manhole 10 is equipped with an openable and closable cover 8 to achieve area closure under normal conditions.

[0041] At the same time, it prevents sewage from overflowing and affecting the gate hoist 7; a maintenance manhole 10 is set on the small platform 6 to facilitate personnel entry and exit during the maintenance of the gate 4 and the removal of the gate 4.

[0042] The connecting area 32 is connected to the inlet pipe 1 and the outlet pipe 2 respectively. In this embodiment, the inlet pipe 1 is provided in one set and the outlet pipe 2 is provided in two sets. A gate 4 is provided at the connection between the outlet pipe 2 and the connecting area 32. The control area 31 is equipped with a gate hoist 7. The gate hoist 7 is connected to the gate 4 through a transmission component. It can control the opening and closing of the gate 4, thereby regulating the water flow. Controlling the raising and lowering of the gate 4 through the gate hoist 7 is the prior art and will not be described in detail here.

[0043] Multiple sets of inlet pipe 1 and outlet pipe 2 are provided, and the elevation of inlet pipe 1 is not lower than that of outlet pipe 2 to ensure the natural guidance of water flow.

[0044] The bottom of the well chamber 3 is provided with a guide channel 11, the direction of which is adapted to the water flow outlet direction of the inlet pipe 1, guiding the water flow to the outlet pipe 2.

[0045] The top of the well chamber 3 is provided with an operator manhole 9 that communicates with the control area 31, so that the staff can enter the control area 31 to operate the hoist 7, or the staff can operate the hoist 7 by connecting the operating rod on the ground.

[0046] A secondary pouring area 5 is provided between the inner wall of the well chamber 3 and the gate 4. Through the secondary pouring area 5, the gate 3 and the inner wall of the well chamber 4 fit together more closely, and at the same time improve the sealing stability of the water outlet pipe 2 and the well chamber 3.

[0047] The hoist 7 and the maintenance manhole 10 are offset to prevent the hoist 7 from obstructing maintenance personnel from entering the connecting area 32 through the maintenance manhole 10.

[0048] A construction method for a multi-purpose valve well that does not need to be exposed to the surface includes the following steps:

[0049] S1: Foundation preparation: Excavate the foundation pit at the preset location, and construct a concrete foundation at the bottom of the foundation pit to provide stable support for the well chamber 3;

[0050] S2: Well chamber construction: Pour or build well chamber 3 on the concrete foundation to form a pre-designed closed cavity structure, ensuring that the strength of well chamber 3 meets the requirements of the underground environment;

[0051] S3: Pipe and gate 4 installation: Install inlet pipe 1 and outlet pipe 2 below well chamber 3 to connect them to the connecting area 32; at the same time, install gate 4 at the connection between outlet pipe 2 and connecting area 32 and fix it initially; simultaneously construct diversion channel 11 at the bottom of well chamber 3, and ensure that the elevation of inlet pipe 1 is not lower than that of outlet pipe 2 by bracket positioning or elevation measurement.

[0052] S4: Installation of small platform 6 and cover plate 8: Construct small platform 6 inside well chamber 3. After the concrete curing of small platform 6 is completed, install cover plate 8 that is compatible with maintenance manhole 10 to achieve normal closure of control area 31 and connecting area 32.

[0053] S5: Installation of hoist 7: Install hoist 7 in control area 31 and connect it to gate 4 through transmission components. Debug to ensure that hoist 7 can smoothly control gate 4.

[0054] S6: Sealing and Functional Testing: Secondary pouring is carried out on the manhole 3 where the gate 4 is located to form the secondary pouring area 5; after the secondary pouring area 5 has solidified, a water flow test is carried out to test the sealing performance of the manhole and the operation function of the gate 4 and the hoist 7; finally, the top of the manhole 3 is sealed, the operator manhole 9 is retained, and the construction is completed.

[0055] Example 2

[0056] The difference between this embodiment and Embodiment 1 is that:

[0057] like Figure 6 As shown, the water inlet pipe 1 in this embodiment is provided with two sets.

[0058] The circuits and mechanical connections involved in this invention are conventional methods used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0059] Components not described in detail in this article are existing technologies.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-purpose valve well that does not leave the ground, characterized in that: Includes a well chamber (3), and a small platform (6) is provided inside the well chamber (3) to divide the well chamber (3) into upper and lower areas, namely a control area (31) and a connecting area (32). The small platform (6) is provided with a maintenance manhole (10) that connects the control area (31) and the communication area (32). The small platform (6) is also provided with a cover plate (8) that blocks the maintenance manhole (10). The connecting area (32) is connected to the inlet pipe (1) and the outlet pipe (2), and a gate (4) is provided at the connection with the outlet pipe (2). The control area (31) is equipped with a gate opener (7) to control the operation of the gate (4).

2. The multi-purpose valve well that does not need to be brought to the surface according to claim 1, characterized in that: Both the inlet pipe (1) and the outlet pipe (2) are provided with multiple sets, and the elevation of the inlet pipe (1) is not lower than the elevation of the outlet pipe (2).

3. A multi-purpose valve well that does not need to be brought to the surface, as described in claim 1 or 2, characterized in that: The bottom of the well chamber (3) is provided with a guide channel (11), which is used to guide the water flow of the water inlet pipe (1).

4. The multi-purpose valve well that does not need to be exposed to the surface according to claim 1, characterized in that: The top of the well chamber (3) is also provided with an operator manhole (9) that communicates with the control area (31).

5. A multi-purpose valve well that does not need to be brought to the surface, as described in claim 1, is characterized in that: A secondary pouring area (5) is provided between the inner wall of the well chamber (3) and the gate (4). Through the secondary pouring area (5), the gate (4) and the inner wall of the well chamber (3) fit together more closely, and at the same time, the sealing stability between the water outlet pipe (2) and the well chamber (3) is increased.

6. A multi-purpose valve well that does not need to be brought to the surface, as described in claim 1, is characterized in that: The gate hoist (7) and the maintenance manhole (10) are misaligned.

7. A construction method for a multi-purpose valve well that does not need to be exposed to the surface, characterized in that, Includes the following steps: S1, excavate the foundation pit at the preset location, construct the concrete foundation at the bottom of the foundation pit, and complete the foundation preparation of the well chamber (3); S2, pour or build a well chamber (3) on the foundation at the bottom of the pit, so that the well chamber (3) forms a pre-set cavity structure; S3, install an inlet pipe (1) and an outlet pipe (2) below the well chamber (3) so that both the inlet pipe (1) and the outlet pipe (2) are connected to the well chamber (3); at the same time, install a gate (4) at the connection between the outlet pipe (2) and the well chamber (3) and preliminarily fix the gate (4); S4, construct a small platform (6) inside the well chamber (3) so that the small platform (6) divides the cavity of the well chamber (3) into two independent areas, namely the control area (31) located above and the connecting area (32) located below; reserve a maintenance manhole (10) on the small platform (6), and after the concrete curing of the small platform (6) is completed, install a cover plate (8) that is compatible with the maintenance manhole (10) to realize the opening and closing of the maintenance manhole (10); S5, install a hoist (7) in the control area (31) of the well chamber (3), and connect the hoist (7) to the gate (4) in the connecting area (32) through a transmission component to ensure that the hoist (7) can control the opening and closing of the gate (4); S6, pour concrete at the well chamber (3) where the gate (4) and the outlet pipe (2) are located to form a secondary pouring area (5). After it solidifies, conduct a water flow test to test the sealing performance of the valve well and the operation function of the gate (4) and the hoist (7) to complete the construction.

8. The construction method of a multi-purpose valve well that does not need to be exposed to the surface according to claim 7, characterized in that: After the construction is completed, the top of the well chamber (3) is sealed and an operator manhole (9) is reserved so that the operator can operate the hoist (7) through the operator manhole (9). The hoist (7) is controlled manually or electrically. The manual method includes the operator entering the control area through the operator manhole (9) and manually operating the hoist (7), or extending the operating rod from the operator manhole (9) to operate the hoist (7). The electric method includes remote control, or entering the control area and controlling the hoist (7) through the control panel on the hoist (7).

9. The construction method of a multi-purpose valve well that does not need to be exposed to the surface according to claim 7, characterized in that: In S3, a guide channel (11) is constructed simultaneously on the inner wall of the bottom of the well chamber (3); the direction of the guide channel (11) is adapted to the water flow outlet direction of the inlet pipe (1) and is used to guide the water flow discharged from the inlet pipe (1) to flow towards the outlet pipe (2).

10. The construction method of a multi-purpose valve well that does not need to be exposed to the surface according to claim 7, characterized in that: In S3, multiple sets of inlet pipe (1) and outlet pipe (2) are provided. During installation, the installation elevation of inlet pipe (1) is not lower than that of outlet pipe (2) by positioning with brackets or measuring elevation.

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