Pressure pipeline temporary transfer system for multiple working conditions

Abstract

The utility model relates to a pressure pipeline temporary transfer system for multiple working conditions, which comprises a starting point expansion pressure well arranged at the starting point position of a pressure pipeline needing to be transformed and an end point expansion pressure well arranged at the end point position of the pressure pipeline needing to be transformed. The starting point expansion pressure well is communicated with the end point expansion pressure well through a temporary discharge header pipe; the starting point extension pressure well is provided with a temporary drainage pipeline and a temporary pump pipeline, the temporary drainage pipeline and the temporary pump pipeline are independent, and the starting point extension pressure well is communicated with the temporary drainage header pipe through the temporary drainage pipeline and the temporary pump pipeline. The utility model has the advantages that: the pressure water can be effectively prevented from flowing out to pollute the environment; during maintenance, the pressure cover plate can be conveniently disassembled only by opening the upper-layer well cover, and a maintenance space is arranged below the cover plate according to a normal inspection well, so that personnel can conveniently clean and maintain; the overall structure is simple and safe, the flexibility is high, the temporary transfer condition of the pressure pipe when the flow pressure change is large or the surplus water head cannot be accurately calculated can be dealt with, and the regional safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage engineering in the municipal industry, in particular to a temporary transfer system for pressure pipelines in multiple working conditions. Background Art

[0002] In recent years, there have been more and more pressure pipeline reconstruction projects. In order to avoid the impact of water outages on the lives of surrounding residents during construction, it is necessary to temporarily transfer the original pressure pipeline. When it is impossible to accurately calculate whether the upstream pressure can overcome the increased head loss after the temporary pipeline is laid, a transfer method that can cope with various working conditions is needed. However, there is no corresponding conventional practice for reference in the current national standard atlas.

[0003] Therefore, it is urgent to design a transfer system with a simple structure that can be applied to different pressure conditions. Summary of the invention

[0004] The purpose of the utility model is to provide a temporary transfer system for pressure pipelines under multiple working conditions based on the deficiencies of the above-mentioned prior art. By setting a temporary discharge pipeline and a temporary pump pipeline between a starting point expansion pressure well and an end point expansion pressure well, a pressure pipeline transfer method suitable for different pressure conditions can be provided.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A temporary transfer system for pressure pipelines under multiple working conditions is used for modifying pressure pipelines. When the pressure pipeline is modified, it includes an existing pressure pipeline and a part of the pressure pipeline to be modified. The part of the pressure pipeline to be modified is located in a part of the existing pressure pipeline. It is characterized in that: the temporary transfer system includes a starting point expansion pressure well arranged at the starting point of the part of the pressure pipeline to be modified and an end point expansion pressure well arranged at the end point of the part of the pressure pipeline to be modified. The starting point expansion pressure well and the end point expansion pressure well are connected through a temporary discharge main pipe; the starting point expansion pressure well has a temporary discharge pipeline and a temporary pump pipeline, the temporary discharge pipeline and the temporary pump pipeline are independent, and the starting point expansion pressure well is connected to the temporary discharge main pipe through the temporary discharge pipeline and the temporary pump pipeline respectively.

[0007] The temporary drainage pipeline is composed of a temporary drainage pipe and its affiliated valve well, wherein one end of the temporary pipe is connected to the starting point expansion pressure well, and the other end is connected to the temporary drainage main pipe, and the affiliated valve well is connected to the temporary drainage pipe.

[0008] The temporary pump pipeline includes a temporary pump water inlet pipe, a temporary pump frame pump water collection well, a temporary regulating water pump and a temporary pump water outlet pipe, wherein one end of the temporary pump water inlet pipe is connected to the starting point expansion pressure well, and the other end is connected to the temporary pump frame pump water collection well. The temporary regulating water pump is installed in the temporary pump frame pump water collection well. One end of the temporary pump water outlet pipe is connected to the temporary pump frame pump water collection well, and the other end is connected to the temporary discharge main pipe.

[0009] The temporary pump water inlet pipe is connected to a matching valve well, and the temporary pump water outlet pipe is connected to a matching valve well.

[0010] A reinforced concrete water retaining plate is arranged inside the temporary pump frame pump sump for separating the temporary pump water inlet pipe from the temporary regulating water pump.

[0011] The temporary pump rack pump water collection well is provided with a pressure cover plate.

[0012] The starting point expansion pressure well is arranged at the position of the starting point existing pressure inspection well, and the two are connected; the terminal point expansion pressure well is arranged at the position of the terminal point existing pressure inspection well, and the two are connected.

[0013] A plug is provided between the starting point and the end point of the pressure pipeline to be modified and the existing pressure pipeline.

[0014] The starting point expansion pressure well and the end point expansion pressure well are respectively provided with pressure cover plates.

[0015] The advantages of the utility model are: it fills the technical gap of temporary transfer during the transformation of pressure water supply pipelines, and can effectively avoid the outflow of pressurized water and pollution of the environment; during maintenance, only the upper manhole cover needs to be opened to conveniently remove the pressure cover plate, and a maintenance space is set under the cover plate according to the normal inspection well, which is convenient for personnel to clean and repair; the overall structure is simple and safe, and has strong flexibility. It can cope with the temporary transfer of pressure pipes when the flow pressure changes greatly or the surplus water head cannot be accurately calculated, thereby ensuring regional safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a plan view of the utility model;

[0017] Figure 2 It is the process layout diagram of the utility model;

[0018] Figure 3 This is the cross section of the water collection well of the pump frame in the utility model Figure 1 ;

[0019] Figure 4 This is the cross section of the water collection well of the pump frame in the utility model Figure 2 ;

[0020] Figure 5This is a cross-sectional view of the pressure well expanded at the starting point of the pressure pipeline in the utility model;

[0021] Figure 6 This is a cross-sectional view of the expanded pressure well at the end of the pressure pipeline in the utility model. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0023] like Figure 1-6 As shown in the figure, marks 1-21 and A, B respectively represent: the expanded pressure well 1 at the starting point of the pressure pipeline, the temporary drainage pipe 2, the temporary drainage pipe auxiliary valve well and supporting valves 3, the temporary pump inlet pipe 4, the temporary pump inlet pipe supporting valve well 5, the temporary pump frame pump collection well 6, the temporary water pump 7, the temporary pump outlet pipe 8, the temporary pump outlet pipe auxiliary valve well and supporting valves 9, the temporary drainage main pipe 10, the existing pressure inspection well 11 at the starting point, the expanded pressure well 12 at the end point of the pressure pipeline, the existing pressure inspection well 13 at the end point, the pressure cover plate 14, the waterproof casing 15, the pressure cover plate 16, the reinforced concrete water retaining baffle 17, the anchor bolts 18, the water pump bracket 19, the plugging 20, the existing water supply pipe 21; the existing pressure pipeline A, and the part of the pressure pipeline B that needs to be modified.

[0024] Example: Figures 1 to 6 As shown, in this embodiment, a temporary transfer system for pressure pipelines under multiple working conditions is provided, which is applied to the renovation and construction of an existing water supply pipe 21. The existing water supply pipe 21 as a whole is an existing pressure pipeline A, and the pressure pipeline B, which needs to be renovated, needs to be renovated. Through the temporary transfer system, it is ensured that the existing pressure pipeline A always has the water supply function during the renovation and construction process.

[0025] Combination Figures 1 to 6 As shown, the temporary transfer system in this embodiment is mainly composed of an expanded pressure well 1 at the starting point of the pressure pipeline, a temporary drainage pipe 2, an auxiliary valve well and supporting valves 3 for the temporary drainage pipe, a temporary pump water inlet pipe 4, a supporting valve well 5 for the temporary pump water inlet pipe, a temporary pump frame pump water collection well 6, a temporary water regulating pump 7, a temporary pump outlet pipe 8, an auxiliary valve well and supporting valves 9 for the temporary pump outlet pipe, a temporary drainage main pipe 10, and an expanded pressure well 12 at the end point of the pressure pipeline.

[0026] Specifically, a pressure pipeline starting point expansion pressure well 1 is constructed at the location of the starting point existing pressure inspection well 11, and the two are connected. In this embodiment, the starting point existing pressure inspection well 11 is an existing pressure inspection well adjacent to the nearest part of the pressure pipeline B to be modified. Its original function is to provide a technician to inspect the existing pressure pipeline A, and its current function is to provide an entrance from the ground to the pressure pipeline starting point expansion pressure well 1 below, so as to facilitate various construction operations in the modification construction.

[0027] At the starting point of the pressure pipeline, the pressure well 1 is expanded and connected to the two side walls of the temporary drainage pipe 2 and the temporary pump water inlet pipe 4 respectively. The temporary drainage pipe 2 is connected to its temporary drainage pipe affiliated valve well and supporting valve 3 and then connected to the temporary drainage main pipe 10. The temporary pump water inlet pipe 4 is connected to the temporary pump water inlet pipe supporting valve well 5 and the temporary pump frame pump collection well 6, and then connected to the temporary drainage main pipe 10 through the temporary pump outlet pipe 8 and its temporary pump outlet pipe affiliated valve well and supporting valve 9.

[0028] Combination Figure 2 and Figure 4 As shown, a temporary water pump 7 is provided in the temporary pump frame pump sump 6, and the temporary water pump 7 is used to pressurize the water entering the temporary pump frame pump sump 6 from the temporary pump water inlet pipe 6 and transport the water to the temporary discharge main pipe 10 through the temporary pump outlet pipe 8.

[0029] In this embodiment, the temporary water pump 7 is firmly mounted in the temporary pump frame pump sump 6 through a water pump bracket 19. A reinforced concrete water retaining plate 17 is arranged in the temporary pump frame pump sump 6 to separate the temporary pump water inlet pipe 4 from the temporary water pump 7 to prevent the temporary water pump 7 from being damaged by pressurized water inflow. A pressure cover plate 16 is arranged on the top of the temporary pump frame pump sump 6, and the pressure cover plate 16 is fixed by anchor bolts 18 to prevent water from overflowing onto the road surface when the water volume is large. A waterproof sleeve 15 is arranged at the temporary pump frame pump sump 6 at the penetration position corresponding to the temporary pump outlet pipe 8 to prevent water from overflowing at this position.

[0030] like Figure 1 As shown, the other end of the temporary discharge main pipe 10 is connected to the pressure pipeline terminal expansion pressure well 12 located at the terminal existing pressure inspection well 13. The terminal existing pressure inspection well 13 is an existing pressure inspection well located closest to the part of the pressure pipeline B that needs to be modified.

[0031] When this embodiment is used, it has the following usage principles:

[0032] After the construction is completed, the existing downstream pressure pipeline is blocked by plugging 20, the temporary pump water inlet pipe supporting valve well 5 and the temporary pump water outlet pipe auxiliary valve well and supporting valve 9 are closed, and the temporary drainage pipe auxiliary valve well and supporting valve 3 are opened to test whether the current water pressure can meet the demand. If there is insufficient pressure downstream, the temporary drainage pipe auxiliary valve well and supporting valve 3 are closed, and the temporary pump water inlet pipe supporting valve 5 and the temporary pump water outlet pipe auxiliary valve well and supporting valve 9 are opened, and temporary pressurized water supply is carried out through the temporary water pump 7.

[0033] In the specific implementation of this embodiment: Figure 5 As shown, the expanded pressure well 1 at the starting point of the pressure pipeline and the existing pressure inspection well 11 at the starting point are cast in one piece with reinforced concrete, and the well walls are tightly attached. Before operation, the well walls of the two well chambers are opened to connect the two wells. Figure 6As shown, the pressure well 12 at the end of the pressure pipeline and the pressure inspection well 13 at the end are constructed using the same process. Pressure cover plates 14 are respectively arranged at the top of the pressure well 1 at the start of the pressure pipeline and the pressure well 13 at the end of the pressure pipeline.

[0034] All pipelines and well chambers need to be flexibly designed according to the existing pipeline specifications.

[0035] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A temporary transfer system for pressure pipelines under multiple working conditions, used for modifying pressure pipelines, wherein the pressure pipelines during modification include existing pressure pipelines and a portion of pressure pipelines to be modified, wherein the portion of pressure pipelines to be modified is located in a part of the existing pressure pipelines, and is characterized in that: The temporary transfer system includes a starting point expansion pressure well arranged at the starting point of the pressure pipeline to be modified and a terminal expansion pressure well arranged at the terminal point of the pressure pipeline to be modified, and the starting point expansion pressure well and the terminal expansion pressure well are connected through a temporary discharge main pipe; the starting point expansion pressure well has a temporary discharge pipeline and a temporary pump pipeline, and the temporary discharge pipeline and the temporary pump pipeline are independent, and the starting point expansion pressure well is connected to the temporary discharge main pipe through the temporary discharge pipeline and the temporary pump pipeline respectively.

2. A temporary transfer system for pressure pipelines under multiple working conditions according to claim 1, characterized in that: The temporary drainage pipeline is composed of a temporary drainage pipe and its affiliated valve well, wherein one end of the temporary drainage pipe is connected to the starting point expansion pressure well, and the other end is connected to the temporary drainage main pipe, and the affiliated valve well is connected to the temporary drainage pipe.

3. The pressure pipeline temporary transfer system for multiple working conditions according to claim 1 is characterized by: The temporary pump pipeline includes a temporary pump water inlet pipe, a temporary pump frame pump water collection well, a temporary regulating water pump and a temporary pump water outlet pipe, wherein one end of the temporary pump water inlet pipe is connected to the starting point expansion pressure well, and the other end is connected to the temporary pump frame pump water collection well. The temporary regulating water pump is installed in the temporary pump frame pump water collection well. One end of the temporary pump water outlet pipe is connected to the temporary pump frame pump water collection well, and the other end is connected to the temporary discharge main pipe.

4. The temporary transfer system for pressure pipelines under multiple working conditions according to claim 3 is characterized in that: The temporary pump water inlet pipe is connected to a matching valve well, and the temporary pump water outlet pipe is connected to a matching valve well.

5. The pressure pipeline temporary transfer system for multiple working conditions according to claim 3 is characterized by: A reinforced concrete water retaining plate is arranged inside the temporary pump frame pump sump for separating the temporary pump water inlet pipe from the temporary water pump.

6. The temporary transfer system for pressure pipelines under multiple working conditions according to claim 3 is characterized in that: The temporary pump rack pump water collection well is provided with a pressure cover plate.

7. The pressure pipeline temporary transfer system for multiple working conditions according to claim 1 is characterized by: The starting point expansion pressure well is arranged at the location of the starting point existing pressure inspection well, and the two are connected; the terminal point expansion pressure well is arranged at the location of the terminal existing pressure inspection well, and the two are connected.

8. The pressure pipeline temporary transfer system for multiple working conditions according to claim 1 is characterized by: A plug is provided between the starting point and the end point of the pressure pipeline to be modified and the existing pressure pipeline.

9. The pressure pipeline temporary transfer system for multiple working conditions according to claim 1 is characterized by: The starting point expansion pressure well and the end point expansion pressure well are respectively provided with pressure cover plates.

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