Partition metering sealing performance testing device and testing method

Abstract

The invention discloses a partition metering sealing performance testing device which comprises a box body, rollers are installed at the bottom of the box body, the box body comprises a bottom plate, a top plate and side plates connecting the bottom plate and the top plate, the bottom plate, the top plate and the side plates define an installation space, a partition plate is arranged in the installation space, and the partition plate divides the installation space into a first cavity and a second cavity. A processing assembly is installed in the first cavity, a testing assembly is installed in the second cavity and comprises a testing pipeline, a water inlet pipeline and a water outlet pipeline are installed at the two ends of the testing pipeline respectively, the water inlet pipeline and the water outlet pipeline penetrate through the corresponding side plates to extend out of the installation space, and a measuring opening is formed in the side wall of the testing pipeline. A sensor is installed in the measuring opening and electrically connected with the processing assembly. A sensor is arranged in the testing pipeline, and whether the area is closed or not can be judged by measuring and calculating the deviation ratio of the actual flow and the theoretical flow.

Description

Technical Field

[0001] The present invention relates to the technical field of testing equipment, and more specifically, to a partition metering closedness testing device and a testing method. Background Art

[0002] The zone metering is composed of single or multiple water inlet and outlet points, and the flowmeter (water meter) is installed at each water inlet and outlet to form an independent water supply metering area. If one of the water inlet and outlet points is not equipped with a flowmeter (water meter), the entire area is not closed from the metering perspective, which will have a great impact on the accurate statistics of indicators such as the water supply volume, minimum water volume at night, and leakage rate of the area, as well as quantitative and qualitative analysis. However, due to management and other reasons, especially the early construction of water supply pipelines, there are generally problems such as missing pipeline data and poor topological relationship accuracy, which makes it difficult to accurately identify the zone boundaries. The built zone topology has a large deviation from the actual pipe network topology. Therefore, a device for testing the closure of the area is needed to determine the boundaries of the area. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a partition metering sealing test device.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A partition metering closure test device comprises a box body, a roller is installed at the bottom of the box body, the box body comprises a bottom plate, a top plate and a side plate connecting the bottom plate and the top plate, the bottom plate, the top plate and the side plates enclose an installation space, a partition is arranged in the installation space, the partition divides the installation space into a first chamber and a second chamber, a processing component is installed in the first chamber, a test component is installed in the second chamber, the test component comprises a test pipe, an inlet pipe and an outlet pipe are respectively installed at both ends of the test pipe, the inlet pipe and the outlet pipe extend to the outside of the installation space through the corresponding side plates, a measuring port is opened on the side wall of the test pipe, a sensor is installed in the measuring port, and the sensor is electrically connected to the processing component.

[0006] Furthermore, the outer wall of the test pipe is provided with a mounting portion surrounding the measuring port, the center of the mounting portion is provided with a mounting port connected to the measuring port and passing through the mounting portion, the sensor is inserted into the test pipe through the mounting port and the measuring port, the mounting portion is provided with a mounting groove, the mounting groove is provided with a limit block that can move and abut against the sensor to limit the movement of the sensor, and the mounting portion is provided with a limit cover, and the limit cover can abut against the limit block to limit the movement of the limit block.

[0007] Furthermore, the mounting groove is placed at an end of the mounting portion away from the test pipe, and the diameter of the mounting groove at the end away from the test pipe is larger than the diameter at the end close to the test pipe so that the mounting groove constitutes an inverted truncated cone-shaped groove, and the limit block includes a side surface facing the side wall of the mounting groove and a second surface facing the side wall of the sensor, and the first surface is a first inclined surface that cooperates with the side wall of the mounting groove, and the first inclined surface moves along the side wall of the mounting groove so that the limit block moves along the axial direction of the sensor while moving toward the center of the mounting groove and abutting against the sensor.

[0008] Furthermore, the second surface is provided with a limiting groove, an elastic block is installed in the limiting groove, the elastic block abuts against the sensor, and a side of the elastic block facing the sensor is arc-shaped.

[0009] Furthermore, the limit cover includes a plate body and a side ring extending from the edge of the plate body along the axial direction of the sensor, the plate body is provided with a clearance hole for the sensor to pass through, a spring is connected to one side of the plate body connected to the side ring, and the other end of the spring is connected to the limit ring, and the spring is sleeved on the sensor when the sensor passes through the clearance hole and the limit ring, and the side ring is sleeved on the mounting part and threadedly cooperated with the mounting part to make the limit ring abut against the limit block.

[0010] Furthermore, a plurality of baffles equidistantly distributed in an annular manner are arranged in the installation groove, and the baffles divide the side surface of the installation groove into a plurality of accommodating grooves, and the limiting blocks are placed in the accommodating grooves.

[0011] Furthermore, an elastic sheet is provided in the accommodating groove and is placed at the bottom of the limit block, a first connecting groove is provided at the bottom of the accommodating groove, a second connecting groove is provided at the bottom of the limit block, and both ends of the elastic sheet are respectively embedded in the first connecting groove and the second connecting groove. When the limit block moves, the elastic sheet is squeezed to make the elastic sheet fit the sensor.

[0012] The present invention also provides a method for partition metering closure testing, comprising the following steps:

[0013] S1: Select a public fire hydrant at a time when the flow rate is relatively stable in the independently metered zone;

[0014] S2: Connect the public fire hydrant to the water inlet pipe of the test device;

[0015] S3: Open the fire hydrant to allow water to flow through the test pipe. The flow rate measured in the test pipe is Q1 and transmitted to the processing component;

[0016] S4: The current partition flow is preset as Q2 in the processing component, and the flow deviation rate K=(Q2-Q1) / Q2 is calculated;

[0017] S5: The processing component presets the allowable deviation rate of the current partition as W. When |K|>W, it is determined that the current partition is not closed. When |K|<W, it is determined that the current partition is closed.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. A sensor is installed in the test pipeline. By measuring the deviation rate between the actual flow rate and the theoretical flow rate, it can be determined whether the area is closed.

[0020] 2. The test pipeline is provided with a mounting seat for installing the sensor. A limit block is arranged in the mounting seat. The sensor is fixed by the friction between the limit block and the sensor, which facilitates the disassembly and assembly of the sensor. At the same time, the stability of the sensor fixation can be ensured when the device is moved, thereby ensuring the accuracy of data measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the test device;

[0022] Figure 2 It is a schematic diagram of the internal structure of the test device;

[0023] Figure 3 is a cross-sectional view of the test device;

[0024] Figure 4 It is a structural schematic diagram of the installation part;

[0025] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0026] Figure 6 is a schematic diagram of the structure of the installation slot;

[0027] Figure 7 It is a structural schematic diagram of the limit block;

[0028] Figure numerals: box body 100, bottom plate 101, top plate 102, side plate 103, partition 104, first chamber 105, second chamber 106, test pipe 110, sensor 111, measuring port 112, water inlet pipe 120, water outlet pipe 130, roller 140, mounting portion 200, mounting port 201, mounting groove 210, baffle 220, accommodating groove 230, first connecting groove 231, limiting cover 300, plate body 310, side ring 320, spring 330, limiting plate 340, limiting block 400, elastic block 401, second connecting groove 410, elastic sheet 500. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1 to 7 The present embodiment discloses a partition metering closure test device, including a box 100, and a roller 140 is installed at the bottom of the box 100 to facilitate the movement of the box 100. The box 100 includes a bottom plate 101, a top plate 102, and a side plate 103 connecting the bottom plate 101 and the top plate 102. The bottom plate 101, the top plate 102, and the side plate 103 enclose an installation space, and a partition 104 is arranged in the installation space. The partition 104 divides the installation space into a first chamber 105 and a second chamber 106. The first chamber 105 is installed with a processing component, and the second chamber 106 is installed with a test component.

[0031] The test assembly includes a test pipe 110, with an inlet pipe 120 and an outlet pipe 130 installed at both ends of the test, respectively. The inlet pipe 120 and the outlet pipe 130 extend through the corresponding side panels 103 to the outside of the installation space. The side wall of the test pipe 110 is provided with a measuring port 112, and a sensor 111 for measuring the flow in the test pipe 110 is installed in the measuring port 112. The sensor 111 is electrically connected to the processing assembly. During the test, a public fire hydrant or drain outlet is selected at a time when the flow in the independently measured partition is relatively stable, and the fire hydrant or drain outlet is connected to the inlet pipe 120 to allow water to flow through the test pipe 110, so that the sensor 111 can measure the water flow in the test pipe 110. Open the fire hydrant or drain outlet to allow water to flow through the test pipe 110. The test pipe 110 measures the flow rate as Q1 and transmits it to the processing component. The current partition flow rate is preset in the processing component as Q2, and the flow deviation rate K=(Q2-Q1) / Q2 is calculated. The current partition allowable deviation rate is preset in the processing component as W. When |K|>W, it is determined that the partition is not closed, and when |K|<W, it is determined that the current partition is closed.

[0032] The outer wall of the test pipe 110 is provided with a mounting portion 200 surrounding the measuring port 112, and the center of the mounting portion 200 is provided with a mounting port 201 that is connected to the measuring port 112 and penetrates the mounting portion 200, and the sensor 111 is inserted into the test pipe 110 through the mounting port 201 and the measuring port 112, and the mounting portion 200 is provided with a mounting groove 210, and a limit block 400 that can move and abut against the sensor 111 to limit the movement of the sensor 111 is provided in the mounting groove 210, and the mounting portion 200 is provided with a limit cover 300, and the limit cover 300 can abut against the limit block 400 to limit the movement of the limit block 400. The limit cover 300 can keep the limit block 400 in contact with the sensor 111, thereby fixing the position of the sensor 111 and preventing the vibration of the device as a whole during the movement from affecting the fixation of the sensor 111. At the same time, the movement of the limit block 400 can adapt to sensors 111 of different diameters, which further facilitates the installation of the sensor 111.

[0033] The mounting groove 210 is placed at the end of the mounting portion 200 away from the test pipe 110. The diameter of the end of the mounting groove 210 away from the test pipe 110 is larger than the diameter of the end close to the test pipe 110 so that the mounting groove 210 constitutes an inverted truncated cone-shaped groove. The limit block 400 includes a side facing the side wall of the mounting groove 210 and a second side facing the side wall of the sensor 111. The first side is a first inclined surface that cooperates with the side wall of the mounting groove 210. The first inclined surface moves along the side wall of the mounting groove 210 so that the limit block 400 moves along the axial direction of the sensor 111 while moving toward the center of the mounting groove 210 and abutting against the sensor 111. The second side is provided with a limit groove, and an elastic block 401 is installed in the limit groove. The elastic block 401 abuts against the sensor 111, and the side of the elastic block 401 facing the sensor 111 is arc-shaped. When the driving block squeezes the sensor 111, the elastic block 401 will be deformed. The deformation of the elastic block 401 can increase the contact area with the sensor 111, and also pressurize the sensor 111, so as to fix the sensor 111. At the same time, for sensors 111 of different diameters, the elastic block 401 can also create some redundant space through its own deformation, which further facilitates the installation of the sensor 111.

[0034] The limit cover 300 includes a plate body 310 and a side ring 320 extending from the edge of the plate body 310 along the axial direction of the sensor 111. The plate body 310 is provided with a clearance hole for the sensor 111 to pass through. A spring 330 is connected to one side of the plate body 310 connected to the side ring 320. The other end of the spring 330 is connected to the limit ring. When the sensor 111 passes through the clearance hole and the limit ring, the spring 330 is sleeved on the sensor 111. The side ring 320 is sleeved on the mounting portion 200 and is threadedly matched with the mounting portion 200 so that the limit ring abuts against the limit block 400. A plurality of baffles 220 distributed in an annular manner and at equal intervals are provided in the mounting groove 210. The baffles 220 divide the side of the mounting groove 210 into a plurality of receiving grooves 230. The limit block 400 is placed in the receiving groove 230. An elastic sheet 500 is provided in the receiving groove 230 and is placed at the bottom of the limiting block 400. A first connecting groove 231 is provided at the bottom of the receiving groove 230, and a second connecting groove 410 is provided at the bottom of the limiting block 400. Both ends of the elastic sheet 500 are respectively embedded in the first connecting groove 231 and the second connecting groove 410. When the limiting block 400 moves, the elastic sheet 500 is squeezed to make the elastic sheet 500 fit the sensor 111. The elastic sheet 500 is made of rubber. When the elastic sheet 500 is squeezed, it will be folded to seal the installation port 201 to prevent water in the pipeline from overflowing from the installation port 201.

[0035] This embodiment also provides a method for zone metering closure testing, including the following steps:

[0036] S1: Select a public fire hydrant at a time when the flow rate is relatively stable in the independently metered zone;

[0037] S2: Connect the public fire hydrant to the water inlet pipe 120 of the test device;

[0038] S3: Open the fire hydrant to allow water to flow through the test pipe 110, and the test pipe 110 measures a flow rate of Q1 and transmits it to the processing component;

[0039] S4: The current partition flow is preset as Q2 in the processing component, and the flow deviation rate K=(Q2-Q1) / Q2 is calculated;

[0040] S5: The processing component presets the allowable deviation rate of the current partition as W. When |K|>W, it is determined that the partition is not closed. When |K|<W, it is determined that the current partition is closed.

[0041] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A partition metering closure test device, characterized in that: The invention comprises a box body (100), a roller (140) being installed at the bottom of the box body (100), the box body (100) comprising a bottom plate (101), a top plate (102) and a side plate (103) connecting the bottom plate (101) and the top plate (102), the bottom plate (101), the top plate (102) and the side plate (103) forming an installation space, a partition plate (104) being arranged in the installation space, the partition plate (104) dividing the installation space into a first chamber (105) and a second chamber (106), the first chamber (105) being installed with a treatment A processing component is installed in the second chamber (106), the test component comprising a test pipe (110), an inlet pipe (120) and an outlet pipe (130) are respectively installed at both ends of the test pipe (110), the inlet pipe (120) and the outlet pipe (130) pass through the corresponding side plate (103) and extend outside the installation space, a measuring port (112) is opened on the side wall of the test pipe (110), a sensor (111) is installed in the measuring port (112), and the sensor (111) is electrically connected to the processing component.

2. A partition metering closure test device according to claim 1, characterized in that: The outer wall of the test pipe (110) is provided with a mounting portion (200) surrounding the measuring port (112); the center of the mounting portion (200) is provided with a mounting port (201) communicating with the measuring port (112) and penetrating the mounting portion (200); the sensor (111) is inserted into the test pipe (110) through the mounting port (201) and the measuring port (112); the mounting portion (200) is provided with a mounting groove (210); a limit block (400) is provided in the mounting groove (210) and is capable of moving and abutting against the sensor (111) to limit the movement of the sensor (111); a limit cover (300) is installed on the mounting portion (200); the limit cover (300) is capable of abutting against the limit block (400) to limit the movement of the limit block (400).

3. A partition metering closure test device according to claim 2, characterized in that: The mounting groove (210) is disposed at an end of the mounting portion (200) away from the test pipe (110); the diameter of the end of the mounting groove (210) away from the test pipe (110) is larger than the diameter of the end close to the test pipe (110) so that the mounting groove (210) forms an inverted truncated cone-shaped groove; the limit block (400) comprises a surface facing the side wall of the mounting groove (210) and a second surface facing the side wall of the sensor (111); the first surface is a first inclined surface matched with the side wall of the mounting groove (210); the first inclined surface moves along the side wall of the mounting groove (210) so that the limit block (400) moves along the axial direction of the sensor (111) and moves toward the center of the mounting groove (210) and abuts against the sensor (111).

4. A partition metering closure test device according to claim 3, characterized in that: The second surface is provided with a limiting groove, an elastic block (401) is installed in the limiting groove, the elastic block (401) is in contact with the sensor (111), and a side of the elastic block (401) facing the sensor (111) is arc-shaped.

5. A partition metering closure test device according to claim 2, characterized in that: The limiting cover (300) comprises a plate body (310) and a side ring (320) extending from the edge of the plate body (310) along the axial direction of the sensor (111); the plate body (310) is provided with a clearance hole for the sensor (111) to pass through; a spring (330) is connected to one side of the plate body (310) connected to the side ring (320); the other end of the spring (330) is connected to the limiting ring; when the sensor (111) passes through the clearance hole and the limiting ring, the spring (330) is sleeved on the sensor (111); the side ring (320) is sleeved on the mounting portion (200) and threadedly matched with the mounting portion (200) so that the limiting ring abuts against the limiting block (400).

6. A partition metering closure test device according to claim 2, characterized in that: A plurality of baffles (220) equidistantly distributed in an annular manner are arranged in the installation groove (210); the baffles (220) divide the side surface of the installation groove (210) into a plurality of accommodating grooves (230); and the limiting blocks (400) are arranged in the accommodating grooves (230).

7. A partition metering closure test device according to claim 6, characterized in that: An elastic sheet (500) is arranged in the receiving groove (230) and is placed at the bottom of the limiting block (400); a first connecting groove (231) is arranged at the bottom of the receiving groove (230); a second connecting groove (410) is arranged at the bottom of the limiting block (400); two ends of the elastic sheet (500) are respectively embedded in the first connecting groove (231) and the second connecting groove (410); when the limiting block (400) moves, the elastic sheet (500) is squeezed so that the elastic sheet (500) and the sensor (111) are fitted.

8. A method for performing a partition metering closure test using the test device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Select a public fire hydrant at a time when the flow rate is relatively stable in the independently metered zone; S2: Connecting a public fire hydrant to a water inlet pipe (120) of the test device; S3: Open the fire hydrant to allow water to flow through the test pipe (110), and the test pipe (110) measures a flow rate Q1 and transmits it to the processing component; S4: The current partition flow is preset as Q2 in the processing component, and the flow deviation rate K=(Q2-Q1) / Q2 is calculated; S5: The processing component presets the allowable deviation rate of the current partition as W. When |K|>W, it is determined that the current partition is not closed. When |K|<W, it is determined that the current partition is closed.

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