CN210638866U - Simulation water net of water distribution pipe net leakage test equipment - Google Patents

Abstract

The utility model discloses a simulation water network of water distribution pipe network leakage test equipment, which comprises a main inlet joint, a main outlet joint and a main water pipe between the main inlet joint and the main outlet joint, and the simulation water network also comprises a square-shaped local area pipe network, a square-shaped local area pipe network and a tree-shaped branched local area pipe network which are communicated with the main water pipe; and each branch water pipe of the three local area pipe networks is provided with a branch flow regulating valve and a pressure sensor. The simulated water network of the water distribution network leakage test equipment can simulate the leakage conditions of different pipe sections and accurately obtain the water pressure change values of the leaked pipe sections and the surrounding pipe sections.

Description

Simulation water net of water distribution pipe net leakage test equipment

Technical Field

The utility model relates to a city distribution pipe network monitoring simulation technical field specifically says a simulation water net of distribution pipe network leakage test equipment.

Background

The water distribution network is an important component of the urban water supply system, and is a pipeline system for conveying tap water from a water plant to thousands of households. Due to the huge volume of the water distribution network, the phenomena of water leakage and rupture of partial water pipes are difficult to avoid, and if the water pipes are not treated in time, a large amount of water resources and energy resources are wasted every year. At present, a water pressure sensor is assembled on each section of water pipe, but because the connection relation of a pipe network is complex, branches are multiple, and one section of water pipe leaks water, pressure changes of sensors of a plurality of sections of water pipes around can be caused, so that the specific pipe section which is damaged and leaked is difficult to determine. And because the water pipe is buried deeply, can confirm whether damaged only after excavating, and because can't confirm the concrete pipe section revealed, can only excavate the pipe section that the pressure change appears in the periphery totally, the work load is too big, obviously does not possess the feasibility of actual operation.

At present, the industry hopes to obtain a scheme for relatively accurately presuming a specific damaged pipe section through the pressure change of each sensor, and reducing the screening range and the troubleshooting workload as much as possible. To obtain the scheme, the method needs to carry out preposition work, namely, a set of water distribution pipe network leakage test equipment is designed, and a simulation pipe network is arranged to carry out certain-degree abstract simulation on a real water distribution pipe network so as to obtain the leakage rate of each pipeline and the pressure change value of the related pipeline and provide a theoretical model and data support for actual investigation work.

The application relates to a simulation water network of a water distribution network leakage test device.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a can simulate out the leakage situation of different pipeline sections and accurately learn the water distribution network leakage test equipment's of the water pressure variation value of revealing pipeline section and pipeline section on every side simulation water net.

The technical solution of the utility model is to provide a simulated water network of water distribution pipe network leakage test equipment, which comprises a main inlet joint, a main outlet joint and a main water pipe between the main inlet joint and the main outlet joint, and the simulated water network also comprises a square-shaped local pipe network, a square-shaped local pipe network and a tree-shaped branched local pipe network which are communicated with the main water pipe;

the square-shaped local pipe network consists of a return pipe and a communicating pipe for connecting the return pipe with a main water pipe, wherein the communicating pipe is provided with a branch flow regulating valve and a pressure sensor, and the return pipe is also provided with a branch flow regulating valve and a pressure sensor;

the field-shaped local pipe network comprises three warp-wise water pipes perpendicular to a main water pipe and two weft-wise water pipes parallel to the main water pipe, the middle weft-wise water pipe communicates the midpoints of the three warp-wise water pipes, the outer ends of the three warp-wise water pipes are communicated by the weft-wise water pipe at the outer side, the inner ends of the three warp-wise water pipes are communicated with one main water pipe, and a pipe section of the main water pipe between the front warp-wise water pipe and the rear warp-wise water pipe forms an inner weft-wise; the field-shaped local area network comprises nine nodes which are communicated in a longitude and latitude mode, and a branch pipe section between every two adjacent nodes is provided with a pressure sensor and a branch flow regulating valve;

the tree-shaped branched local pipe network comprises one-level branch water pipes communicated with a main water pipe, each one-level branch water pipe is provided with a pressure sensor and a branch flow regulating valve, the outlet of each one-level branch water pipe is connected with at least two second-level branch water pipes, each second-level branch water pipe is provided with a pressure sensor, and the tail end of each second-level branch water pipe is provided with a branch flow regulating valve.

Compared with the prior art, the simulated water network of the water distribution network leakage test equipment with the structure has the following advantages.

The simulated water network abstracts and summarizes three most classical local area network networks from a complex and messy city actual water distribution network so as to simulate three most common pipe distribution modes, namely a Chinese character 'hui' simulated water supply pipe supplies water to a single household; if the tree branches, the main pipe in the simulated cell respectively supplies water to each unit building pipeline, and each unit building pipeline respectively supplies water to each house independently; the Chinese character 'tian' simulates the water supply condition when all main waterways in the city are arranged in the Chinese character 'tian'. The simulation of the pipe network is about 1 point in the city, and the condition of leakage when the user does not use water is specifically analyzed below.

The branch flow regulating valve on the communicating pipe of the square-letter local area pipe network has two functions, controls the on-off of the local area pipe network and simulates the water leakage condition of the communicating pipe through the opening of the regulating valve body, the branch flow regulating valve of the return pipe simulates the leakage condition of the return pipe in different degrees, and the two pressure sensors of the communicating pipe and the return pipe can monitor and collect the corresponding pressure change values when different leakage quantities occur at the two positions or one of the two positions.

The field local area pipe network is totally a circle of eight branch pipe sections at the edge and four branch pipe sections distributed in a cross shape in the middle, and the twelve branch pipe sections are respectively provided with a corresponding pressure sensor and a branch flow regulating valve, so that water leakage of different degrees can be simulated at any branch pipe section, and the pressure value change conditions of the water leakage pipe section and the peripheral pipe section can be comprehensively and accurately collected.

Similarly, each branch pipe section of each level of the tree-shaped branched local pipe network is provided with a corresponding pressure sensor and a corresponding branch flow regulating valve, so that the condition that any branch pipe section of any level leaks to different degrees can be simulated, of course, the condition of simultaneous leakage can also be simulated, and the pressure value change conditions of the water leaking pipe section and the peripheral pipe section can also be comprehensively and accurately collected.

In summary, the idea of simulating the pipe network is to split the complex and difficult-to-quantify actual problem into three known quantifiable simple models for research, that is, the real complex concrete pipe network is split into the three basic classic local area networks, in other words, the classic local area networks with the measurable pressure values and leakage amounts are superposed to simulate most of the real water distribution networks. Through data acquisition and analysis of the three classic local area network networks, namely, independent analysis is carried out on each classic local area network, or a plurality of classic local area network networks are subjected to comprehensive analysis after being overlapped, and each specific number is acquired, a theoretical model and data support can be provided for actual investigation work. More generally, the simulation water network can adjust the specific leakage amount of each pipe section, and the pressure change values of the pipe section and the peripheral pipe section are obtained according to different leakage amounts, recorded and stored to form a plurality of groups of data of different pressure values corresponding to different pipelines and different leakage amounts.

The application method of the data is that when the pressure sensors at certain positions in the actual water distribution pipe network change, the specific pipe section which leaks when the same pressure value changes of the pressure sensors at the same positions in the simulated pipe network can be found by comparing the simulated data, and the pipe section which leaks on the actual water distribution pipe network is probably the pipe section at the same position. Therefore, approximate pipe sections with leakage can be found out through comparison and analysis according to data collected by the simulation pipe network, so that the screening range is narrowed as much as possible, and the workload of investigation is reduced.

Preferably, the two main water pipes are connected in parallel, and a main flow regulating valve is respectively arranged at the inlet and the outlet of each main water pipe; the upper main water pipe is communicated with the square-shaped local pipe network and the field-shaped local pipe network; the lower main water pipe is communicated with the tree-shaped branched local pipe network; thus, different local area networks are distributed on water networks of different layers, the main water pipe is opened alone, data of the tree-shaped branched local area network are collected independently, the branch flow regulating valve of one primary branch water pipe is closed completely, and if the primary branch water pipe on the left is cut off, leakage and pressure change values of the primary branch water pipe on the right and three secondary branch water pipes communicated with the primary branch water pipe on the right can be collected and researched more accurately; the data condition of the square-shaped local pipe network and the field-shaped local pipe network can be acquired simultaneously when the upper main water pipe is opened singly, the branch flow regulating valves of the communicating pipes of the square-shaped local pipe network are closed, the data of the square-shaped local pipe network can be acquired independently, the three branch flow regulating valves closest to the upper main water pipe on the three radial water pipes of the field-shaped local pipe network are closed, and the data of the square-shaped local pipe network can be acquired independently; and closing the three branch flow regulating valves on the three warp-direction water pipes far away from the upper main water pipe, so that the field shape can be changed into a Chinese character 'ri', and a new local area pipe network is obtained. In conclusion, the diversification of research samples is realized, the data condition of the local area network can be acquired independently, comprehensively or in multiple modes, and more accurate data support is provided for the simulation of actual working conditions.

Preferably, the simulation water network further comprises a middle main water pipe connected with the upper main water pipe and the lower main water pipe in parallel; the middle main water pipe can be additionally connected with three classical local area networks to simulate the change condition of leakage and pressure value of each pipe section when the three local area networks are mutually overlapped, and the middle main water pipe can be provided with a simulated local area network with the same shape according to the distribution shape of an actual pipe network in a certain area of a city; in other words, the arrangement of the middle trunk water pipe provides a connecting node and a mounting position for an additional water network with an indefinite form, and the reality degree and the practicability of the simulation are improved.

Drawings

Fig. 1 is a schematic structural diagram of a water distribution pipe network leakage test device provided with the simulation water network of the utility model.

Fig. 2 is the structure schematic diagram of the simulated water network of the water distribution network leakage test device of the utility model.

Fig. 3 is a schematic structural diagram of an upper water net of a simulation water net of the water distribution pipe net leakage test device of the utility model.

Fig. 4 is a schematic structural diagram of a lower water network of a simulation water network of the water distribution network leakage test device of the present invention.

Shown in the figure 1, total inlet joint, 2, total outlet joint, 3, word local pipe network returns, 3.1, the pipe returns, 3.2, communicating pipe, 4, field word local pipe network, 4.1, warp direction water pipe, 4.2, latitudinal direction water pipe, 5, arborescent branching local pipe network, 5.1, one-level branch water pipe, 5.2, second grade branch water pipe, 6, branch flow control valve, 7, pressure sensor, 8, trunk flow control valve, 9, go up trunk water pipe, 10, lower trunk water pipe, 11, middle trunk water pipe, 12, the delivery pipe, 13, the water tank, 14, the pump, 15, the drain pipe.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the simulated water network of the water distribution network leakage test equipment of the present invention comprises a main inlet joint 1 and a main outlet joint 2; wherein the main inlet connection 1 is connected to the water tank 13 via a water supply line 12, the water supply line 12 is provided with a pump 14, and the main outlet connection 2 is connected to the water tank 13 via a water discharge line 15.

In this embodiment, three high, medium and low main water pipes connected in parallel are arranged between the main inlet joint 1 and the main outlet joint 2 of the simulated water network, a main flow regulating valve 8 is arranged near the inlet of each main water pipe, and a main flow regulating valve 8 is also arranged near the outlet of each main water pipe.

The simulated water network also comprises a square-shaped local area network 3, a square-shaped local area network 4 and a tree-shaped branched local area network 5.

The square-shaped local area network 3 consists of a square-shaped pipe 3.1 and a communicating pipe 3.2, a branch flow regulating valve 6 and a pressure sensor 7 are arranged on the communicating pipe 3.2, and the square-shaped pipe 3.1 is also provided with the branch flow regulating valve 6 and the pressure sensor 7; the outer end of the communicating pipe 3.2 is communicated with the clip pipe 3.1, while the inner end of the communicating pipe 3.2 is communicated with the upper main water pipe 9.

The field-shaped local area network 4 comprises three warp-wise water pipes 4.1 perpendicular to an upper main water pipe 9 and two weft-wise water pipes 4.2 parallel to the upper main water pipe 9, the middle weft-wise water pipe 4.2 is used for communicating the midpoints of the three warp-wise water pipes 4.1, the outer ends of the three warp-wise water pipes 4.1 are communicated by the weft-wise water pipe 4.2 at the outer side, the inner ends of the three warp-wise water pipes 4.1 are communicated with the upper main water pipe 9, and a section of the upper main water pipe 9 between the first warp-wise water pipe 4.1 and the last warp-wise water pipe 4.1 forms one weft-wise water pipe 4.2 at the inner; the field-shaped local area network comprises nine nodes which are communicated in a longitudinal and latitudinal mode, and a branch pipe section between every two adjacent nodes is provided with a pressure sensor 7 and a branch flow regulating valve 6.

Of course, the upper main water pipe 9 is also provided with a pressure sensor 7 on the pipe section behind the field-shaped local pipe network 4.

The tree-shaped branched local pipe network 5 comprises two primary branch water pipes 5.1 communicated with a lower main water pipe 10, each primary branch water pipe 5.1 is provided with a pressure sensor 7 and a branch flow regulating valve 6, the outlet of each primary branch water pipe 5.1 is connected with at least two secondary branch water pipes 5.2, in the embodiment, one primary branch water pipe 5.1 on the left is communicated with the two secondary branch water pipes 5.2, and one primary branch water pipe 5.1 on the right is communicated with the three secondary branch water pipes 5.2; each secondary branch water pipe 5.2 is provided with a pressure sensor 7, and the tail end of each secondary branch water pipe 5.2 is provided with a branch flow regulating valve 6.

Of course, the section of the lower main water pipe 10 behind the tree-shaped branched local pipe network 5 is also provided with a pressure sensor 7.

The middle main water pipe 11 of the three main water pipes can be freely matched with segmented water pipes, connectors and the like, and is arranged according to the distribution and the trend of pipelines in a specific area of the urban water distribution network, so that a specific water network of a real community is simulated; or the three classic local area network networks are mutually superposed to simulate a network with a more complicated trend. In other words, the middle main water pipe 11 can be spliced into various different pipe networks according to the requirements of experimenters, and the spliced pipe networks are in indefinite forms, have randomness and variability, enrich the models, improve the simulation truth and are more visual.

Of course, it is known from the general knowledge that the water distribution network leak testing device is provided with a main controller which is in signal connection with all the valve bodies and the pressure sensor 7.

The utility model discloses an all be equipped with the mouth of a river that leaks that can open on the branch flow control valve 6, the switching at the mouth of a river that leaks also is controlled by main control unit. When the water leakage port is completely closed, the branch flow regulating valve 6 only plays a role of regulating the flow conventionally, and after the water leakage port is opened, the leakage conditions of different water quantities can be simulated.

Claims (3)

1. The utility model provides a water distribution pipe net leaks simulation water net of loss test equipment which characterized in that: the simulation water network comprises a main inlet joint (1), a main outlet joint (2) and a main water pipe between the main inlet joint and the main outlet joint, and further comprises a Chinese character 'hui' local area pipe network (3), a Chinese character 'tian' local area pipe network (4) and a tree-shaped branched local area pipe network (5) which are communicated with the main water pipe;

the Chinese character 'hui' local area pipe network (3) is composed of a return pipe (3.1) and a communicating pipe (3.2) for connecting the return pipe (3.1) and a main water pipe, a branch flow regulating valve (6) and a pressure sensor (7) are arranged on the communicating pipe (3.2), and a branch flow regulating valve (6) and a pressure sensor (7) are also arranged on the return pipe (3.1);

the field-shaped local area pipe network (4) comprises three warp-wise water pipes (4.1) perpendicular to a main water pipe and two weft-wise water pipes (4.2) parallel to the main water pipe, the middle weft-wise water pipe (4.2) is used for communicating the middle points of the three warp-wise water pipes (4.1), the outer ends of the three warp-wise water pipes (4.1) are communicated by the weft-wise water pipe (4.2) at the outer side, the inner ends of the three warp-wise water pipes (4.1) are communicated with the main water pipe, and a pipe section of the main water pipe between the front warp-wise water pipe and the rear warp-wise water pipe (4.1) forms the weft-wise water pipe (4.2) at; the field-shaped local area network comprises nine nodes which are communicated in a longitude and latitude mode, and a branch pipe section between every two adjacent nodes is provided with a pressure sensor (7) and a branch flow regulating valve (6);

arborescent branching local area network (5) include one-level branch water pipe (5.1) with the main water pipe intercommunication, every one-level branch water pipe (5.1) is equipped with a pressure sensor (7) and a branch flow control valve (6), the exit linkage of every one-level branch water pipe (5.1) has two piece at least second grade branch water pipes (5.2), be equipped with a pressure sensor (7) on every second grade branch water pipe (5.2), every second grade branch water pipe (5.2) end is equipped with a branch flow control valve (6).

2. The simulated water network of water distribution network leakage test equipment as claimed in claim 1, wherein: the two main water pipes are connected in parallel, and a main flow regulating valve (8) is respectively arranged at the inlet and the outlet of each main water pipe; the upper main water pipe (9) is communicated with the square-shaped local area pipe network (3) and the square-shaped local area pipe network (4); the lower trunk water pipe (10) is communicated with the tree-shaped branched local area pipe network (5).

3. The simulated water network of water distribution network leakage test equipment as claimed in claim 2, wherein: it also comprises a middle main water pipe (11) which is connected with the upper main water pipe (9) and the lower main water pipe (10) in parallel.

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