CN216483289U

CN216483289U - Flow measuring device

Info

Publication number: CN216483289U
Application number: CN202123070895.0U
Authority: CN
Inventors: 刘敏; 王荣合
Original assignee: Jiangsu Yangtze River Delta Smart Water Platform Research Institute Co ltd
Current assignee: Jiangsu Yangtze River Delta Smart Water Platform Research Institute Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-10
Anticipated expiration: 2031-12-08

Abstract

The utility model provides a flow measuring device, survey buret including measurement subassembly, stock pipe and horizontally. One end of the measuring pipe is suitable for being inserted into a liquid inlet pipeline of the inspection well, and the other end of the measuring pipe is suitable for being placed in the inspection well and allowing liquid to be detected to flow out. The metering assembly is disposed on the measurement tube and adapted to measure a flow rate of the liquid in the measurement tube. The liquid storage pipe is connected to the measuring pipe, and the vertical distance from the liquid outlet of the liquid storage pipe to the lowest point of the inspection well is larger than the vertical distance from the highest point of the measuring pipe to the lowest point of the inspection well. The utility model discloses the deposit liquid pipe that sets up makes when surveying buret full pipe less difficult to make in drainage pipe network water flow, makes and waits to survey liquid and constantly accumulates in surveying buret and deposit liquid pipe, and the liquid outlet that piles up to overflowing deposit liquid pipe until waiting to survey liquid in the drainage pipe network just can continue to flow, and the liquid of waiting to survey in the buret this moment is in full pipe state to can realize the accurate measurement to waiting to survey liquid flow in the drainage pipe network, can realize the accurate measurement to sewage in the drainage pipe network promptly.

Description

Flow measuring device

Technical Field

The utility model relates to a flow measurement's technical field, concretely relates to flow measurement device.

Background

Along with the continuous development of economy, urban population is increasing, and urban environment governance is more and more important, especially urban water environment governance, and concerns about urban operation and human health. The urban water environment is treated mainly by eliminating urban waterlogging and promoting urban drainage.

The urban drainage pipe network operation condition is monitored to eliminate urban inland inundation, and continuous real-time detection is carried out on the water level flow of the drainage pipe network. Municipal drainage pipe network is equipped with a plurality of inspection wells, generally places the flowmeter in the inspection well when monitoring municipal drainage pipe network flow, and the measurement of sewage flow in the drainage pipe network is realized to the inlet tube that sewage got into the flowmeter in the inspection well to flow to municipal drainage pipe network carries out real-time supervision.

The inlet tube of current flowmeter generally is the horizontally straight tube, and when drainage official website interior water flow was less, rivers were difficult to fill up the flowmeter inlet tube, lead to unable accurate measurement to drainage pipe network discharge.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art defect that can't accurate measurement drain pipe network discharge when the interior water flow of drain pipe network is less.

Therefore, the utility model provides a flow measuring device, include:

one end of the horizontal measuring pipe is suitable for being inserted into a liquid inlet pipeline of the inspection well, and the other end of the horizontal measuring pipe is suitable for being placed in the inspection well and allowing liquid to be detected to flow out;

a metering assembly disposed on the measurement tube adapted to measure liquid flow in the measurement tube;

a liquid storage tube connected to the measuring tube;

the vertical distance between the liquid outlet of the liquid storage pipe and the lowest point of the inspection well is greater than the vertical distance between the highest point of the measuring pipe and the lowest point of the inspection well.

Optionally, the liquid storage pipe is a bent pipe.

Optionally, the one end of the liquid outlet of oneself is kept away from to the pipe of bending with the sealed grafting of liquid outlet of surveying buret.

Optionally, the flow rate measurement device further includes:

and one end of the connecting pipe is connected to the measuring pipe, and the other end of the connecting pipe is suitable for being inserted into a liquid inlet pipeline of the inspection well.

Optionally, the pipe diameter of the connecting pipe is larger than the pipe diameter of the measuring pipe.

Optionally, the metering assembly includes:

a time-difference sensor provided on the measurement pipe;

and the display unit is electrically connected with the time difference sensor and is suitable for calculating and displaying the data acquired by the time difference sensor.

Optionally, the flow rate measurement device further includes:

a rectifying tank communicating between the measuring pipe and the connecting pipe;

and an overflow port for liquid to flow out is arranged on the rectification box.

Optionally, the flow rate measurement device further includes:

a filter mechanism adapted to filter liquid flowing into the measurement tube.

Optionally, the filtering mechanism comprises:

a filter screen disposed between the rectification box and the measurement pipe.

Optionally, a handle is arranged on the rectifying box.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a pair of flow measuring device, when the flow of drainage pipe net internal discharge liquid is less, the liquid that awaits measuring in buret is surveyed in the feed liquor pipeline inflow through the inspection shaft, temporarily unable outflow in getting into the stock solution pipe after, the liquid that awaits measuring will be in surveying buret and stock solution pipe and constantly accumulate, it just can continue to flow to the liquid outlet that overflows the stock solution pipe to pile up to the liquid that awaits measuring in the drainage pipe net, and this moment because the vertical distance of the liquid outlet of stock solution pipe apart from the inspection shaft minimum is greater than the vertical distance of surveying buret peak apart from the inspection shaft minimum, make the liquid that awaits measuring in the survey buret be in full pipe state, thereby can realize the accurate measurement to the liquid flow that awaits measuring in the drainage pipe net, can realize the accurate measurement to sewage in the drainage pipe net promptly.

2. The utility model provides a pair of flow measuring device, the pipe diameter of connecting pipe is greater than the pipe diameter of surveying buret, makes the pipe diameter of surveying buret less, changes and reaches full pipe state, and when the flow was less in the drainage pipe network, can play the effect that shortens flow measurement cycle.

3. The utility model provides a flow measuring device, the time difference method sensor has higher measuring accuracy and is easy to install; the display unit can directly display the flow value, and is more convenient for reading the flow value of the liquid to be measured.

4. The utility model provides a pair of flow measuring device, when the liquid flow in the drain pipe network is great, survey the pipe diameter of buret and can restrict the outflow of liquid in the drain pipe network, make the liquid in the drain pipe network in time discharge, finally can cause municipal sewage to be difficult to in time discharge. And the setting of rectifier box makes the liquid in the drain pipe network flow through the overflow mouth of rectifier box, avoids appearing the unable in time exhaust problem of liquid in the drain pipe network.

5. According to the flow measuring device provided by the utility model, the filtering mechanism can prevent garbage in the drainage pipe network from entering the measuring pipe, on one hand, the problem that the flow measurement is inaccurate due to the garbage in the measuring pipe is avoided; on the other hand, set up filtering mechanism and be more convenient for clear up the rubbish in the drain pipe network in the inspection shaft.

6. The utility model provides a pair of flow measuring device, simple structure, portable can use in the less inspection shaft of import size.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a flow rate measurement device in the present invention.

Description of reference numerals: 1. a rectification box; 2. a measurement tube; 3. bending the pipe; 4. a time difference method sensor; 5. a display unit; 6. a connecting pipe; 7. a handle.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

A flow measuring device, as shown in fig. 1, comprises a metering assembly, a liquid storage tube and a horizontal measuring tube 2. One end of the measuring pipe 2 is suitable for being inserted into a liquid inlet pipeline of the inspection well, and the other end of the measuring pipe is suitable for being placed in the inspection well and allowing liquid to be detected to flow out. The metering assembly is arranged on the measuring tube 2 and is adapted to measure the flow of liquid in the measuring tube 2. The liquid storage pipe is connected to the measuring pipe 2, and the vertical distance from the liquid outlet of the liquid storage pipe to the lowest point of the inspection well is larger than the vertical distance from the highest point of the measuring pipe 2 to the lowest point of the inspection well.

When the flow of discharging liquid in the drain pipe network is less, the liquid inlet pipeline through the inspection shaft flows in the liquid to be measured in surveying buret 2, temporarily unable outflow after getting into in the liquid storage tube, the liquid to be measured will be constantly accumulated in surveying buret 2 and liquid storage tube, it just can continue to flow out to the liquid outlet that overflows the liquid storage tube to pile up the liquid to be measured in the drain pipe network, and this moment because the vertical distance of the liquid outlet of liquid storage tube apart from the inspection shaft minimum is greater than the vertical distance of surveying buret 2 peak apart from the inspection shaft minimum, make the liquid to be measured in surveying buret 2 be in full pipe state, thereby can realize the accurate measurement to the liquid flow to be measured in the drain pipe network, can realize the accurate measurement to sewage in the drain pipe network promptly.

In this embodiment, the shape of the liquid storage tube is not limited to a circular tube, and all the tubes that can achieve the liquid discharge function and the full tube of the measuring tube 2 when the flow rate of the liquid to be measured in the drain pipe network is small can be used as the liquid storage tube.

As shown in fig. 1, the liquid storage tube is a bending tube 3, and one end of the bending tube 3, which is far away from the liquid outlet of the bending tube, is in sealed insertion connection with the liquid outlet of the measuring tube 2. The installation of the bent pipe 3 is realized by the sealed splicing of the bent pipe 3 and the measuring pipe 2.

As shown in fig. 1, the flow rate measurement device further includes a connection pipe 6. One end of the connecting pipe 6 is connected with the measuring pipe 2, and the other end is suitable for being inserted into a liquid inlet pipeline of the inspection well. The measuring tube 2 is connected into the intake duct of the manhole by means of a connecting tube 6. The pipe diameter of connecting pipe 6 is greater than the pipe diameter of surveying buret 2, makes the pipe diameter of surveying buret 2 less, changes and reaches full pipe state, and when the flow was less in the drain pipe network, can play the effect that shortens flow measurement cycle.

As shown in fig. 1, the metering assembly includes a time-of-flight sensor 4 and a display unit 5. The time difference method sensor 4 is arranged on the measuring pipe 2, and the display unit 5 is electrically connected with the time difference method sensor 4 and is suitable for calculating and displaying data collected by the time difference method sensor 4. On one hand, the time difference method sensor 4 has higher measurement accuracy and is easy to install; on the other hand, the display unit 5 can directly display the flow value, so that the flow value of the liquid to be measured can be read more conveniently.

As shown in fig. 1, the flow rate measurement device further includes a rectifying box 1 communicating between the measurement pipe 2 and the connection pipe 6. The rectification box 1 is provided with an overflow port for liquid to flow out. When the liquid flow in the drain pipe network is great, the pipe diameter of the measuring pipe 2 can limit the outflow of the liquid in the drain pipe network, so that the liquid in the drain pipe network can not be discharged in time, and finally, the urban sewage can not be discharged in time. And the setting of rectifier box 1 makes the liquid in the drain pipe network flow through rectifier box 1's overflow mouth, avoids appearing the unable timely exhaust problem of liquid in the drain pipe network. As shown in fig. 1, a handle 7 is arranged on the rectifying box 1, so that the measuring device is convenient to measure, mount and carry.

The flow measuring device further comprises a filter means (not shown in the figures) adapted to filter the liquid flowing into the measuring tube 2. The filtering mechanism can prevent garbage in the drainage pipe network from entering the measuring pipe 2, and on one hand, the problem of inaccurate flow measurement caused by the garbage in the measuring pipe 2 is avoided; on the other hand, set up filtering mechanism and be more convenient for clear up the rubbish in the drain pipe network in the inspection shaft. The filter mechanism includes the filter screen, and the filter screen setting is between rectifier box 1 and survey buret 2. In this embodiment, the mesh number of the filter screens can be changed, and a plurality of filter screens can be arranged to improve the filtering effect. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A flow measuring device, characterized by comprising:

one end of the horizontal measuring pipe (2) is suitable for being inserted into a liquid inlet pipeline of the inspection well, and the other end of the horizontal measuring pipe is suitable for being placed in the inspection well and allowing liquid to be detected to flow out;

-a metering assembly, arranged on the measuring tube (2), adapted to measure the liquid flow in the measuring tube (2);

a liquid storage tube connected to the measuring tube (2);

the vertical distance between the liquid outlet of the liquid storage pipe and the lowest point of the inspection well is greater than the vertical distance between the highest point of the measuring pipe (2) and the lowest point of the inspection well.

2. A flow measuring device according to claim 1, characterized in that the reservoir tube is a bent tube (3).

3. A flow measuring device according to claim 2, characterized in that the end of the bending tube (3) remote from the outlet thereof is sealingly connected to the outlet of the measuring tube (2).

4. A flow measuring device according to claim 3, further comprising:

and one end of the connecting pipe (6) is connected to the measuring pipe (2), and the other end of the connecting pipe is suitable for being inserted into a liquid inlet pipeline of the inspection well.

5. A flow measuring device according to claim 4, characterized in that the pipe diameter of the connecting pipe (6) is larger than the pipe diameter of the measuring pipe (2).

6. A flow measuring device according to claim 4 or 5, characterized in that the metering assembly comprises:

a time-difference sensor (4) arranged on the measuring tube (2);

and the display unit (5) is electrically connected with the time difference sensor (4) and is suitable for calculating and displaying the data acquired by the time difference sensor (4).

7. The flow measuring device of claim 6, further comprising:

a rectification box (1) communicating between the measuring pipe (2) and the connecting pipe (6);

an overflow port for liquid to flow out is arranged on the rectification box (1).

8. The flow measuring device of claim 7, further comprising:

-a filter mechanism adapted to filter liquid flowing into the measuring tube (2).

9. A flow measuring device according to claim 8, wherein the filter mechanism comprises:

a filter screen arranged between the rectification box (1) and the measuring pipe (2).

10. A flow measuring device according to claim 7, characterised in that the rectifying box (1) is provided with a handle (7).