Closed water test device

Abstract

The utility model discloses a closed water test device, and relates to the field of closed water tests, and the closed water test device comprises a lifting assembly, a first water storage box, a first communicating pipe, a weighing assembly, a second water storage box, a second communicating pipe and a water pumping power part. The water level between the first water storage box and the test pipeline is kept consistent, when the water level of the test pipeline drops, the water level in the first water storage box also drops, and the water pumping power piece can pump water in the second water storage box into the first water storage box to supplement water. When the water level in the first water storage box is higher than the height of the second communicating pipe, redundant water flows back into the second water storage box through the second communicating pipe, and finally, the weight change of the water in the second water storage box is weighed through the weighing assembly, so that a test result can be obtained. The full-process automatic measurement and automatic water replenishing can be carried out on the closed water test, and the accuracy and reproducibility of detection are improved.

Description

Technical Field

[0001] This application relates to the field of water tightness tests, and particularly to a water tightness test device. Background Art

[0002] In the water tightness test of the pipeline functional test of the water supply and drainage pipeline project, the actual measured water seepage volume is required. However, the specification only stipulates the equipment and instrument specifications for the water pressure test as follows: when using a spring pressure gauge, the accuracy shall not be less than 1.5 levels, the maximum range shall be preferably 1.3 - 1.5 times the test pressure, and the nominal diameter of the meter case shall not be less than 150 mm. That is, only the water injection test is stipulated, and there is no regulation on the measurement of the water seepage volume in the water tightness test at all, thus causing the inspectors to be at a loss.

[0003] In the existing solutions: In the first solution, most testing units use a simple measuring cylinder to measure the water tightness test. That is, first make a mark of the test water level on the well wall of the test well, observe the water level manually, and replenish water in real time if there is a decrease. Calculate the replenished water volume within the test time as the actual measured water seepage volume; in the second solution, a steel tape water level gauge or other sensors are used to control the test water level, and if there is a decrease, artificial water replenishment is carried out in real time or water is replenished through a flow meter and a water pump.

[0004] Defects of the first solution: 1. The specification does not stipulate specific detection equipment and accuracy requirements for the measurement of water seepage volume, so technicians are at a loss in actual detection; 2. The equipment and methods adopted in reality cause the results of the actual measured water seepage volume to be inaccurate or incomparable. Even in the same unit, the parallel errors of the results measured by the same technician using the same equipment will be very large; 3. Manual water replenishment is used throughout the test process, which is time-consuming and laborious and inaccurate; Defects of the second solution: Although the second solution overcomes the disadvantage of manual water replenishment, the water replenishment accuracy is poor and the water replenished when the water level exceeds the sensor cannot be easily taken out. Utility Model Content

[0005] The embodiment of this application provides a water tightness test device, which can automatically measure and automatically replenish water throughout the water tightness test process, improving the accuracy and reproducibility of detection.

[0006] A water tightness test device provided by this application includes a lifting assembly, a first water storage box, a first connecting pipe, a weighing assembly, a second water storage box, a second connecting pipe, and a pumping power component; the lifting assembly is arranged on one side of the test pipeline, and the lifting direction of the lifting assembly is consistent with the axial direction of the test pipeline; the first water storage box is arranged on the lifting assembly, and the bottom of the first water storage box is communicated with the test pipeline through the first connecting pipe; the weighing assembly is arranged on the lifting assembly; the second water storage box is arranged on the weighing assembly, and the first water storage box and the second water storage box are communicated through the second connecting pipe; the inlet end of the pumping power component is communicated with the second water storage box, and the outlet end of the pumping power component is communicated with the first water storage box.

[0007] The water tightness test device of the present application has at least the following beneficial effects:

[0008] The water tightness test device of the present application includes a lifting assembly, a first water storage box, a first connecting pipe, a weighing assembly, a second water storage box, a second connecting pipe, and a pumping power member; the lifting assembly can adjust the height of the entire device to facilitate the adaptation to different test situations. Since the first water storage box and the test pipeline of the present application are connected through the first connecting pipe, the water levels between the first water storage box and the test pipeline are kept consistent. When the water level in the test pipeline drops, the water level in the first water storage box also drops accordingly. The pumping power member can pump the water in the second water storage box into the first water storage box for water replenishment. When the water level in the first water storage box is higher than the height of the second connecting pipe, the excess water flows back to the second water storage box through the second connecting pipe. Finally, the weight change of the water in the second water storage box is measured by the weighing assembly, and thus the test result can be obtained. The device of the present application does not require manual water replenishment and can automatically measure and replenish water throughout the water tightness test process, improving the accuracy and reproducibility of the detection. Description of the Drawings

[0009] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0010] Figure 1 is a schematic structural diagram of the water tightness test device of the present application;

[0011] Figure 2 is Figure 1 a partial structural diagram of

[0012] The descriptions of the reference numerals are as follows:

[0013] 1. Lifting assembly; 101. Base; 102. Telescopic member; 103. Lifting platform;

[0014] 2. First water storage box;

[0015] 3. First connecting pipe;

[0016] The weighing assembly;

[0017] 5. Second water storage box;

[0018] 6. Second connecting pipe;

[0019] 7. Pumping power member;

[0020] 8. First water level control sensor;

[0021] 9. Second water level control sensor;

[0022] 10. Third water storage box;

[0023] 11. Third connecting pipe;

[0024] 12. Solenoid valve;

[0025] 13. Fourth water storage box;

[0026] 14. Fourth connecting pipe;

[0027] 15. Flow regulating valve;

[0028] 16. Third water level control sensor;

[0029] 17. Test pipeline. Detailed implementation manners

[0030] The features and exemplary embodiments of various aspects of the present application will be described in detail below. To make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application.

[0031] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "including..." do not exclude the existence of additional identical elements in the process, method, article or device including the elements.

[0032] This embodiment discloses a water tightness test device, which includes a lifting assembly 1, a first water storage box 2, a first connecting pipe 3, a weighing assembly 4, a second water storage box 5, a second connecting pipe 6 and a pumping power member 7, as Figure 1 and Figure 2 shown, specifically as follows:

[0033] The lifting assembly 1 is used to drive other components to lift in the axial direction (i.e., the height direction) of the test pipeline 17. The lifting assembly 1 includes a base 101, a telescopic member 102, and a lifting platform 103. The base 101 is arranged on the horizontal side of the test pipeline 17. The telescopic member 102 is arranged on the base 101, and the telescopic direction of the telescopic member 102 is configured as the axial direction (i.e., the height direction) of the test pipeline 17. The lifting platform 103 is horizontally arranged at the telescopic end of the telescopic member 102, and the lifting platform 103 is used to carry other components of the water-blocking device. Among them, the telescopic member 102 is configured as an electric push rod, a jack, or a telescopic cylinder. In this embodiment, the telescopic member 102 is preferably a jack. Among them, the lifting assembly 1 can adjust the test water head to a position that meets the design requirements.

[0034] The first water storage box 2 is arranged on the lifting platform 103, and the bottom of the first water storage box 2 is communicated with the inside of the test pipeline 17 through a first communication pipe 3, so that the liquid level heights of the first water storage box 2 and the test pipeline 17 can be kept consistent.

[0035] The weighing assembly 4 is arranged on the lifting platform 103. The weighing assembly 4 is used to weigh the weight change of the water in the second water storage box 5 and the third water storage box 10 (the third water storage box 10 will be described in detail below), so as to measure the water seepage volume of the test pipeline 17. That is to say, the water extracted from the second water storage box 5 and the third water storage box 10 is supplemented into the first water storage box 2, and the supplemented water is the water seepage volume. The weighing assembly 4 is configured as an electronic balance. The electronic balance is arranged on the lifting platform 103, and both the second water storage box 5 and the third water storage box 10 are arranged on the electronic balance.

[0036] Both ends of the second communication pipe 6 are respectively communicated with the first water storage box 2 and the second water storage box 5. The second communication pipe 6 can act as a return pipe. When the water pumping power component 7 supplements water into the first water storage box 2, the water level height in the first water storage box 2 gradually rises until it exceeds the height of the second communication pipe 6. At this time, the excess water can flow back into the second water storage box 5 through the second communication pipe 6. The second communication pipe 6 is configured as a straight pipeline. The second communication pipe 6 is horizontally arranged, and its two ends are respectively communicated with the middle positions of the first water storage box 2 and the second water storage box 5.

[0037] The inlet end of the water pumping power component 7 extends downward to the bottom position of the second water storage box 5, and the outlet end of the water pumping power component 7 is communicated with the first water storage box 2. The water pumping power component 7 can extract the water in the second water storage box 5 into the first water storage box 2, so as to realize the water replenishment of the first water storage box 2. In this embodiment, the water pumping power component 7 is configured as a micro electromagnetic pump.

[0038] In some embodiments, the water-closure test device further includes a first water level control sensor 8 and a second water level control sensor 9 that are distributed in the second water storage box 5 in the height direction. The first water level control sensor 8 is located above the second water level control sensor 9. The heights of both the first water level control sensor 8 and the second water level control sensor 9 are lower than the height of the second communication pipe 6. Among them, both the first water level control sensor 8 and the second water level control sensor 9 are communicatively connected to the pumping power component 7.

[0039] When the water level in the second water storage box 5 is higher than the second water level control sensor 9, the second water level control sensor 9 gives a signal for the pumping power component 7 to work, so that the pumping power component 7 replenishes the water in the second water storage box 5 into the first water storage box 2. When the water level in the second water storage box 5 is lower than the second water level control sensor 9, the second water level control sensor 9 gives a signal for the pumping power component 7 to stop working. Because the water level in the second water storage box 5 is too low at this time, the pumping power component 7 stops working at this time, which can avoid the problem of dry pumping.

[0040] In some embodiments, the water-closure test device further includes a third water storage box 10, a third communication pipe 11, and a solenoid valve 12. The third water storage box 10 is arranged on the second water storage box 5 or the weighing assembly 4. Preferably, the third water storage box 10 is arranged on the upper left side of the second water storage box 5. One end of the third communication pipe 11 communicates with the bottom of the second water storage box 5, and the other end of the third communication pipe 11 communicates with the bottom of the second water storage box 5. The solenoid valve 12 is arranged on the third communication pipe 11 and is used to control the opening and closing of the third communication pipe 11. The solenoid valve 12 is communicatively connected to the first water level control sensor 8 and the second water level control sensor 9 respectively. When the water level in the second water storage box 5 is lower than the second water level control sensor 9, the second water level control sensor 9 gives a signal for the solenoid valve 12 to open, and the water in the third water storage box 10 flows into the second water storage box 5 through the third communication pipe 11. When the water level in the second water storage box 5 exceeds the second water level control sensor 9, the pumping power component 7 starts to work. Since the third communication pipe 11 continuously supplies water to the second water storage box 5, and at the same time when the water level in the first water storage box 2 exceeds the second communication pipe 6, the excess water in the first water storage box 2 flows back into the second water storage box 5, so that the water level in the second water storage box 5 continuously rises until the water level in the second water storage box 5 reaches the height of the first water level control sensor 8, and the first water level control sensor 8 gives a signal for the solenoid valve 12 to close.

[0041] In some embodiments, the water-sealing test device further includes a fourth water storage box 13, a fourth connecting pipe 14, and a flow regulating valve 15; the fourth water storage box 13 is arranged on the upper right side of the second water storage box 5, such that at least a part of the fourth water storage box 13 is higher than the first water storage box 2. In this way, the water in the second water storage box 5 can flow naturally into the first water storage box 2. The upper end of the fourth connecting pipe 14 communicates with the bottom of the fourth water storage box 13, and the lower end of the fourth connecting pipe 14 communicates with the first water storage box 2; the flow regulating valve 15 is arranged on the fourth connecting pipe 14, and the flow of the water in the fourth connecting pipe 14 can be adjusted through the flow regulating valve 15. Among them, the outlet end of the pumping power member 7 communicates with the fourth water storage box 13, and the pumping power member 7 communicates with the first water storage box 2 through the fourth water storage box 13 and the fourth connecting pipe 14.

[0042] In this embodiment, the fourth water storage box 13, the fourth connecting pipe 14, and the flow regulating valve 15 are provided to facilitate the adjustment of the flow rate of the water replenished into the first water storage box 2, and to avoid the water flow rate of the replenished water being too large, resulting in the water in the first water storage box 2 not having time to flow back into the second water storage box 5, thus causing the water level in the first water storage box 2 to be higher than the initial water level H1. It should be noted that the flow regulating valve 15 can be controlled manually or a third water level control sensor 16 is arranged on the inner peripheral wall of the first water storage box 2. The third water level control sensor 16 is located above the second connecting pipe 6 and is close to the position where the second connecting pipe 6 is connected to the first water storage box 2. The third water level control sensor 16 is communicatively connected to the flow regulating valve 15. When the water level in the first water storage box 2 reaches the height of the third water level control sensor 16, the third water level control sensor 16 gives a signal to close the flow regulating valve 15, and at this time, the water supply to the first water storage box 2 stops, waiting for the water in the first water storage box 2 to flow back into the second water storage box 5 through the second connecting pipe 6. When the water level in the first water storage box 2 is lower than the height of the third water level control sensor 16, the third water level control sensor 16 gives a signal to open the flow regulating valve 15 again.

[0043] A working method of the water-sealing test device in this embodiment is as follows:

[0044] 1. Adjust the lifting platform 103 to a predetermined height, and then connect the first connecting pipe 3 to the test pipeline 17. Initially, the water levels in the first water storage box 2, the first connecting pipe 3, and the test pipeline 17 are at the same height (as shown by H1 in Figure 1 )

[0045] 2. Add a certain amount of water into the second water storage box 5. The initial water level height in the second water storage box 5 is between the first water level control sensor 8 and the second water level control sensor 9 (as shown by Figure 1As shown by H2, since the initial water level height of the second water storage box 5 is higher than that of the second water level control sensor 9, the water pumping power component 7 sends water to the first water storage box 2 through the fourth water storage box 13 and the fourth communication pipe 14. The first water storage box 2 sends the excess water back into the second water storage box 5 through the second communication pipe 6. On the other hand, a certain amount of standby water is added to the third water storage box 10;

[0046] III. When the water level in the test pipeline 17 drops (i.e., the water seepage in the test pipeline 17 causes the water level to drop, and the amount of seepage is generally small), the water level in the first water storage box 2 also drops accordingly. However, due to the continuous water replenishment by the water pumping power component 7, the water levels in the first water storage box 2 and the test pipeline 17 will quickly return to the initial position;

[0047] IV. When the water level in the second water storage box 5 is lower than the second water level control sensor 9, the solenoid valve 12 on the third communication pipe 11 is opened to replenish water to the second water storage box 5 until the water level height in the second water storage box 5 reaches the first water level control sensor 8, and then the solenoid valve 12 is closed;

[0048] V. When the test time is reached, the amount of water seepage in the test pipeline 17 is obtained by measuring the water volume changes in the second water storage box 5 and the third water storage box 10.

[0049] As described above, this is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A water tightness test device, characterized in that, It includes a lifting component (1), a first water storage box (2), a first connecting pipe (3), a weighing component (4), a second water storage box (5), a second connecting pipe (6), and a pumping power component (7); The lifting component (1) is arranged on one side of the test pipeline (17), and the lifting direction of the lifting component (1) is consistent with the axial direction of the test pipeline (17); The first water storage box (2) is arranged on the lifting component (1), and the bottom of the first water storage box (2) is communicated with the test pipeline (17) through the first connecting pipe (3); The weighing component (4) is arranged on the lifting component (1); The second water storage box (5) is arranged on the weighing component (4), and the first water storage box (2) and the second water storage box (5) are communicated through the second connecting pipe (6); The inlet end of the pumping power component (7) is communicated with the second water storage box (5), and the outlet end of the pumping power component (7) is communicated with the first water storage box (2).

2. The water tightness test device according to claim 1, characterized in that, The lifting component (1) includes a base (101), a telescopic component (102), and a lifting platform (103); the base (101) is arranged on one side of the test pipeline (17); the telescopic component (102) is arranged on the base (101); the lifting platform (103) is arranged on the telescopic end of the telescopic component (102); the first water storage box (2) and the weighing component (4) are both arranged on the lifting platform (103).

3. The water tightness test device according to claim 2, characterized in that, The telescopic component (102) is configured as an electric push rod, a jack, or a telescopic cylinder.

4. The water tightness test device according to any one of claims 1 to 3, characterized in that, It further includes a first water level control sensor (8) and a second water level control sensor (9) distributed in the second water storage box (5) along the height direction. The heights of the first water level control sensor (8) and the second water level control sensor (9) are both lower than that of the second connecting pipe (6); the first water level control sensor (8) and the second water level control sensor (9) are both connected to the pumping power component (7).

5. The water tightness test device according to claim 4, characterized in that, It further includes a third water storage box (10), a third connecting pipe (11), and a solenoid valve (12). The third water storage box (10) is arranged on the second water storage box (5) or the weighing component (4). The third water storage box (10) is communicated with the bottom of the second water storage box (5) through the third connecting pipe (11). The solenoid valve (12) is arranged on the third connecting pipe (11), and the solenoid valve (12) is respectively connected to the first water level control sensor (8) and the second water level control sensor (9).

6. The water tightness test device according to claim 1, characterized in that It further includes a fourth water storage box (13), a fourth connecting pipe (14), and a flow regulating valve (15); the fourth water storage box (13) is arranged on the second water storage box (5), and at least part of the fourth water storage box (13) is higher than the first water storage box (2); one end of the fourth connecting pipe (14) is communicated with the bottom of the fourth water storage box (13), and the other end is communicated with the first water storage box (2); the flow regulating valve (15) is arranged on the fourth connecting pipe (14); the outlet end of the pumping power component (7) is communicated with the first water storage box (2) through the fourth water storage box (13) and the fourth connecting pipe (14).

7. The water tightness test device according to claim 6, characterized in that, It further includes a third water level control sensor (16) disposed in the first water storage box (2), and the third water level control sensor (16) is located above the second communication pipe (6).

8. The water tightness test device according to claim 1, characterized in that, The pumping power member (7) is configured as a micro electromagnetic pump.

9. The water-tight test device according to claim 1, wherein, The weighing assembly (4) includes an electronic balance.

10. The water-tight test device according to claim 1, characterized in that, The second communication pipe (6) is configured as a straight pipe, and the second communication pipe (6) is horizontally communicated with the middle positions of the first water storage box (2) and the second water storage box (5) respectively.

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