A smart water meter used in nuclear power plants

Abstract

This application relates to a smart water meter used in nuclear power plants, and pertains to the technical field of water meters. The water meter includes a meter body and a pipe protection mechanism. The meter body includes a detection and display element and a measuring pipe, with the detection and display element located outside the measuring pipe. The pipe protection mechanism includes an inner retainer, which is inserted into the measuring pipe along its own axial direction and slidably connected to the inner wall of the measuring pipe along its own axial direction. The pipe protection mechanism in this application, by inserting the inner retainer into the measuring pipe, and the inner retainer being made of a corrosion-resistant material, allows fluid to flow through, separating the measuring pipe from the fluid and reducing the corrosive effect of the fluid on the measuring pipe. Because the inner retainer is installed inside the measuring pipe through a sliding insertion method, it is easy to replace, thereby extending the service life of the water meter.

Description

Technical Field

[0001] This application relates to the technical field of water meters, and in particular to a smart water meter used in nuclear power plants. Background Technology

[0002] A smart water meter is a new type of water meter that uses modern microelectronics, modern sensing technology, and smart IC card technology to measure water consumption, transmit water usage data, and settle transactions. Compared to ordinary water meters, which generally only have the functions of flow rate collection and mechanical pointer display of water consumption, smart water meters represent a significant advancement.

[0003] In addition to recording and electronically displaying water consumption, smart water meters can also control water consumption according to agreements, automatically calculate water fees based on tiered pricing, and store water consumption data.

[0004] A water meter generally includes a detection component and a display component. The detection component is connected to the pipe and is used to detect the flow rate or volume of water in the pipe, while the display component is used to display the detection results of the detection component.

[0005] Water meters can be divided into mechanical and sensor types. Mechanical water meters consist of a sensor based on the principle of mechanical motion and a sensing element that can convert mechanical motion into an electrical signal input to the meter, such as a turbine (impeller) type electronic water meter. Sensor water meters use a measuring sensor based on the principle of electronic or electromagnetic induction, and the meter and indicating device are both electronic components, such as ultrasonic water meters, jet water meters, Coriolis water meters, and electromagnetic water meters.

[0006] Regarding the aforementioned technologies, existing water meters are directly connected to the inside of the pipe to detect the flow rate and volume of the fluid within the pipe. However, in some special environments, such as nuclear power plants or chemical plants, the liquid flowing through the water meter is corrosive. After prolonged use, the water meter's structure may corrode and break down, thus reducing its lifespan. Summary of the Invention

[0007] This application provides a smart water meter for use in nuclear power plants, the purpose of which is to improve the corrosion resistance of the water meter, so that the water meter can have a longer service life in corrosive environments such as nuclear power plants.

[0008] The smart water meter provided in this application for use in nuclear power plants adopts the following technical solution:

[0009] A smart water meter for use in nuclear power plants includes a meter body and a pipe protection mechanism. The meter body includes a detection display element and a measuring pipe, with the detection display element located outside the measuring pipe.

[0010] The pipeline protection mechanism includes an inner retainer, which is inserted into the measuring pipeline along its own axial direction and slidably connected to the inner wall of the measuring pipeline along its own axial direction.

[0011] By adopting the above technical solution, firstly, the measuring pipe on the meter body is used to connect to the water pipe to be tested. The flow rate or flow volume of the fluid inside the water pipe is detected by electromagnetic induction. The display device on the measuring pipe can display the test results for easy reading.

[0012] Secondly, the pipeline protection mechanism is set up by inserting an inner retainer into the measuring pipeline. The inner retainer is made of corrosion-resistant material, so it can accommodate the flow of fluid and separate the measuring pipeline from the fluid, thereby reducing the corrosive effect of the fluid on the measuring pipeline.

[0013] Because the inner liner is installed inside the measuring pipe through a sliding plug-in connection, the inner liner is easy to replace, which can extend the service life of the water meter.

[0014] Optionally, both ends of the inner liner are provided with connecting flanges. The connecting flanges include a first flange and a connecting pipe. One end of the connecting pipe is coaxially connected to the first flange, and the other end is sleeved on the outside of the inner liner. The inner wall of the connecting pipe is threadedly connected to the outer wall of the inner liner. The connecting pipe is inserted into the measuring pipe and is slidably connected to the inner wall of the measuring pipe.

[0015] By adopting the above technical solution, the two connecting flanges are matched and the inner liner is fixed by the threaded connection between the connecting pipe and the inner liner. The detection pipe is sleeved on the outside of the connecting pipe, so the two connecting flanges can realize the connection between the inner liner and the measuring pipe.

[0016] Optionally, a first feedback component is provided between the outer wall of the inner liner and the inner wall of the measuring pipe. The first feedback component includes a trigger, and a feedback groove is provided on the outer wall of the inner liner. The trigger is installed on the inner wall of the feedback groove.

[0017] By adopting the above technical solution, the first feedback component is set up by opening a feedback groove on the inner wall of the measuring pipe and installing a trigger in the feedback groove. The trigger can detect the fluid, so that after the fluid corrodes the inner storage and causes the inner storage to break, the trigger can detect the fluid and then provide feedback that the inner storage has been damaged, so as to facilitate timely replacement of the inner storage.

[0018] Optionally, the trigger includes a first electrode and a second electrode, the feedback groove is arranged along the axial direction of the measuring pipe, and the first electrode and the second electrode are spaced apart along the length direction of the feedback groove.

[0019] By adopting the above technical solution, the trigger element uses the cooperation of the first electrode plate and the second electrode plate. If the internal storage is damaged, after the fluid enters the corresponding feedback tank, the first electrode plate and the second electrode plate are connected to each other, which can detect the fluid.

[0020] Optionally, a protective shell is fitted on the outside of the meter body. The protective shell includes a closed box and two side sealing plates. A clearance hole is provided through the side sealing plates, and the clearance hole is inserted and matched with the measuring pipe.

[0021] The enclosed box has sliding connection holes through both sides of the measuring pipe along the axial direction, and the meter body is inserted into the sliding connection holes along the axial direction of the measuring pipe.

[0022] The two side sealing plates are located on both sides of the sealed box along the axial direction of the measuring pipe, and the side sealing plates close the corresponding sliding connection holes.

[0023] By adopting the above technical solution, a protective shell is set on the outside of the watch body. The protective shell is installed on the outside of the watch body through two side sealing plates and a closed box, which can form a closed box and thus protect the watch body.

[0024] When water meters need to be installed in water or in corrosive environments, the protective casing can increase the protection of the water meter and thus improve its corrosion resistance.

[0025] Optionally, an inner mounting shell is fitted onto the outer side of the watch body, the sealed box is fitted onto the inner mounting shell, and the side sealing plate is connected to the inner mounting shell.

[0026] By adopting the above technical solution, an inner shell is installed inside the sealed box. The inner shell is installed on the outside of the watch body, which can provide a second layer of protection for the watch body and facilitate the removal and replacement of the protective shell with a new one.

[0027] Optionally, a second feedback component is provided between the inner wall of the enclosed box and the mounting inner shell. The second feedback component includes a detection element. A connecting groove is provided on the outer wall of the mounting inner shell. The length direction of the connecting groove is arranged along the axial direction of the measuring pipe. The detection element is installed on the inner wall of the connecting groove.

[0028] By adopting the above technical solution, the second feedback component is set up so that the detection element is installed through the connecting groove on the inner shell. The detection element can detect the damage to the protective shell. After the protective shell is damaged, fluid enters between the protective shell and the inner shell. The detection element can detect the fluid and thus provide a prompt, which facilitates timely replacement of the protective shell.

[0029] Optionally, the detection element includes a third electrode plate and a fourth electrode plate, which are spaced apart from each other along the length of the connecting groove.

[0030] By adopting the above technical solution, the detection element uses the cooperation of the third electrode plate and the fourth electrode plate. Before the fluid enters the corresponding connecting groove, the fluid will connect the third electrode plate and the fourth electrode plate, thereby facilitating the detection of the presence of fluid.

[0031] Optionally, a reinforcing component is provided between the inner wall of the enclosed box and the mounting inner shell. The reinforcing component includes a locking groove, which is formed on the inner wall of the enclosed box. An auxiliary groove is formed on one side wall of the measuring pipe along the axial direction of the locking groove.

[0032] The mounting inner shell is provided with a locking component, which includes a locking plate. The locking plate is inserted into the locking groove along the depth direction of the locking groove, and the locking plate is slidably connected to the inner wall of the locking groove along the depth direction of the locking groove. The locking plate is connected with a protruding component that can drive the locking plate to move toward or away from the inner wall of the enclosed box.

[0033] The locking member is connected to a driving member capable of driving the locking member to move along the axial direction of the measuring pipe. The locking plate is inserted into the auxiliary groove along the axial direction of the measuring pipe, and the locking plate is slidably connected to the inner wall of the auxiliary groove along the axial direction of the measuring pipe.

[0034] By adopting the above technical solution, a reinforcement component is set between the inner wall of the closed box and the inner shell of the installation. The reinforcement component includes a locking component. The locking component can move along the depth direction of the locking groove through the action of the protruding component. Under the action of the driving component, the locking plate can slide and insert into the corresponding auxiliary groove along the axial direction of the measuring pipe.

[0035] Therefore, after the enclosed box is installed on the outside of the inner shell, the locking plate can be inserted into the corresponding auxiliary slot through the cooperation of the protruding part and the driving part, which can increase the stability of the enclosed box on the inner shell.

[0036] Optionally, a first viewing hole is provided on the side of the enclosed box facing the detection display, and a transparent plate is installed on the inner wall of the first viewing hole, the transparent plate closing the first viewing hole.

[0037] By adopting the above technical solution, the opening of the first viewing hole and the setting of the transparent plate make it easy to observe the data on the detection display through the closed box, thus making it easy to read the water meter value.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. The internal storage device can protect the inner wall of the measuring pipe, reduce the corrosion of the inner wall of the measuring pipe by the fluid inside the measuring pipe, and improve the service life of the water meter.

[0040] 2. The protective casing can protect the outside of the meter body, reduce the corrosion of the meter body by the installation environment, and improve the service life of the water meter.

[0041] 3. The first feedback component can detect the status of the inner liner, making it easy to detect damage to the inner liner in a timely manner, thus facilitating timely replacement of the inner liner and improving the service life of the measuring pipeline. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall structure of the water meter in this application.

[0043] Figure 2 This is a cross-sectional structural diagram of the water meter in this application.

[0044] Figure 3 This is an exploded structural diagram of the protective mechanism for the body and pipes in this application.

[0045] Figure 4 This is a schematic diagram of the exploded structure of the protective shell in this application.

[0046] Figure 5 yes Figure 4 A magnified schematic diagram of part A in the middle.

[0047] Figure 6 This is a cross-sectional structural diagram showing the location of the second feedback component of the water meter in this application.

[0048] Figure 7 This is a cross-sectional structural diagram showing the location of the fixing components of the water meter in this application.

[0049] Figure 8 yes Figure 7 A magnified schematic diagram of part B in the middle section.

[0050] In the diagram, 1 is the instrument body; 11 is the detection display component; and 12 is the measuring pipe.

[0051] 2. Pipeline protection mechanism; 21. Inner storage tube; 22. Connecting flange; 221. First flange; 222. Connecting pipe; 23. First feedback assembly; 231. Feedback tank; 232. Trigger; 2321. First electrode plate; 2322. Second electrode plate; 24. Pipe flange; 241. Extension pipe; 242. Second flange;

[0052] 3. Protective shell; 31. Side sealing plate; 311. Clearance hole; 312. First connection hole; 313. Mounting bolt; 32. Enclosed box; 321. Base plate; 322. Cover plate; 3221. First viewing hole; 3222. Transparent plate; 323. Side plate; 3231. Insertion groove; 324. Sliding connection hole; 33. Snap-fit ​​assembly; 331. Snap-fit ​​post; 332. Snap-fit ​​groove;

[0053] 4. Install inner shell; 41. Mounting box; 411. Mounting hole; 412. Second connecting hole; 413. Second viewing hole; 414. Viewing plate; 42. Second feedback component; 421. Connecting groove; 422. Detection component; 423. Third electrode plate; 424. Fourth electrode plate; 43. Reinforcing component; 431. Hidden groove; 432. Locking groove; 433. Auxiliary groove; 434. Locking component; 4341. Locking plate; 4342. Extending component; 435. Driving component; 4351. Push rod. Detailed Implementation

[0054] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.

[0055] A smart water meter used in nuclear power plants, referring to Figure 1 and Figure 2 The meter includes a body 1, which comprises a detection and display element 11 and a measuring pipe 12. The detection and display element 11 is located on the upper side of the pipe. The meter body 1 is an electromagnetic water meter. Fluid can flow through the measuring pipe 12, and the flow velocity and flow rate of the fluid can be detected through the cooperation of the electromagnetic coil inside the measuring pipe 12. The detection and display element 11 can display the detection results. Therefore, the meter body 1 can realize the detection and display of fluid flow rate.

[0056] Reference Figure 1 and Figure 2 It also includes a pipeline protection mechanism 2, which includes an inner retainer 21. The inner retainer 21 is coaxially inserted with the measuring pipeline 12 and slides along its own axial direction to the inner wall of the measuring pipeline 12. Therefore, the inner retainer 21 allows fluid to flow through it, thus isolating the fluid from the inner wall of the measuring pipeline 12 and reducing the corrosion of the inner wall of the measuring pipeline 12 by the fluid.

[0057] Reference Figure 2 and Figure 3The inner liner 21 has connecting flanges 22 at both ends. Each connecting flange 22 includes a first flange 221 and a connecting pipe 222. One end of the connecting pipe 222 is coaxially and fixedly connected to the first flange 221. The end of the connecting pipe 222 away from the first flange 221 is sleeved on the outside of the inner liner 21, and the inner wall of the connecting pipe 222 is threadedly connected to the outer wall of the inner liner 21. The connecting pipe 222 is inserted into the measuring pipe 12, and the outer wall of the connecting pipe 222 is slidably connected to the inner wall of the measuring pipe 12. Both ends of the measuring pipe 12 abut against the corresponding first flange 221. Therefore, the two connecting flanges 22 facilitate the installation of the inner liner 21 and the measuring pipe 12, and also facilitate the disassembly and replacement of the inner liner 21.

[0058] Reference Figure 2 and Figure 3 A first feedback component 23 is provided between the inner storage tube 21 and the measuring pipe 12. The first feedback component 23 includes a plurality of feedback slots 231, which are evenly spaced along the circumference of the inner storage tube 21. The feedback slots 231 are formed on the outer side wall of the inner storage tube 21, and their length direction is along the axial direction of the inner storage tube 21. The first feedback component 23 includes a plurality of trigger elements 232, which are arranged one-to-one with the feedback slots 231. The trigger elements 232 are inserted into the corresponding feedback slots 231. The trigger elements 232 include a first electrode plate 2321 and a second electrode plate 2322, which are inserted into the corresponding feedback slots 231 and are spaced apart along the axial direction of the corresponding feedback slots 231.

[0059] Therefore, when the inner liner 21 is excessively corroded, the inner wall of the inner liner 21 becomes thinner until the side wall of the inner liner 21 is damaged. The fluid flowing through the inner liner 21 will enter the corresponding feedback tank 231 through the damaged position. The fluid can connect the first electrode plate 2321 and the second electrode plate 2322 in the corresponding feedback tank 231. At this time, after the trigger 232 is turned on, the state of the inner liner 21 can be determined, which is convenient for timely replacement of the new inner liner 21.

[0060] Reference Figure 2 and Figure 4 The outer side of the meter body 1 is also fitted with a protective shell 3, which includes two side sealing plates 31. The side sealing plates 31 are arranged along the axial direction of the measuring pipe 12 in the thickness direction, and the two side sealing plates 31 are spaced apart from each other in the thickness direction. The two side sealing plates 31 are located between the two first flanges 221 in the thickness direction. A clearance hole 311 is opened on one side of the side sealing plate 31 in the thickness direction. The clearance hole 311 passes through the corresponding side sealing plate 31 in the thickness direction. The measuring pipe 12 is inserted into the clearance hole 311 and slides along its own axial direction with the inner wall of the clearance hole 311.

[0061] The side sealing plate 31 has a plurality of first connecting holes 312, which are evenly spaced around the corresponding relief holes 311 along the circumference of the relief holes 311. Each of the first connecting holes 312 corresponds one-to-one with a through hole on the first flange 221, and a mounting bolt 313 is coaxially inserted into the through hole on the first flange 221 and the corresponding first connecting hole 312. Therefore, the side sealing plate 31 can be fixed by the mounting bolt 313.

[0062] Reference Figure 1 and Figure 4 The protective shell 3 also includes a closed box 32. The closed box 32 is set along the length of the measuring pipe 12. The closed box 32 has sliding connection holes 324 through both sides along its own length direction. The sliding connection holes 324 are inserted and matched with the meter body 1, so that the closed box 32 can be sleeved on the outside of the meter body 1.

[0063] The two sides of the sealed box 32 along its length respectively abut against the corresponding side sealing plates 31, and the side sealing plates 31 close the corresponding sliding connection holes 324. Therefore, the sealed box 32 and the two side sealing plates 31 can form a box that protects the watch body 1, thus achieving protection for the watch body 1.

[0064] Reference Figure 4 and Figure 5 The enclosed box 32 includes a bottom plate 321, a cover plate 322, and two side plates 323. The bottom plate 321 is a semi-annular plate. The cover plate 322 is vertically opposite to the bottom plate 321 and is located on the upper side of the bottom plate 321. The length of the cover plate 322 is along the axial direction of the measuring pipe 12. The two side plates 323 are located on both sides of the cover plate 322 along its width direction. The two sides of the side plates 323 are vertically connected to the cover plate 322 and the bottom plate 321, respectively. A insertion groove 3231 is provided on the side of the side plate 323 facing the bottom plate 321. The insertion groove 3231 extends through the side plate 323 along the length of the cover plate 322. One side of the bottom plate 321 is inserted into the corresponding insertion groove 3231 along the length of the cover plate 322, and the bottom plate 321 is slidably connected to the inner wall of the insertion groove 3231 along the length of the cover plate 322. Therefore, this design facilitates the disassembly and installation of the enclosed box 32.

[0065] A snap-fit ​​assembly 33 is provided between the side plate 323 and the base plate 321. The snap-fit ​​assembly 33 includes a snap-fit ​​post 331, which is located on the inner wall of the insertion groove 3231. The length direction of the snap-fit ​​post 331 is along the length direction of the cover plate 322. A snap-fit ​​groove 332 is formed on the side of the base plate 321 facing the corresponding side plate 323. The snap-fit ​​groove 332 is formed on the horizontal side wall of the base plate 321 and extends through the base plate 321 along the length direction of the cover plate 322. The snap-fit ​​post 331 is inserted into the corresponding snap-fit ​​groove 332 along its own length direction and is slidably connected to the inner wall of the corresponding snap-fit ​​groove 332 along its own length direction. The snap-fit ​​assembly 33 can increase the connection stability and sealing between the side plate 323 and the base plate 321.

[0066] Reference Figure 2 and Figure 4 A first viewing hole 3221 is provided on the cover plate 322, which penetrates the cover plate 322. A transparent plate 3222 is installed on the inner wall of the first viewing hole 3221, which closes the first viewing hole 3221. Therefore, the value of the detection display 11 can be viewed through the first viewing hole 3221, making it convenient to read the detection result of the meter body 1.

[0067] Reference Figure 2 and Figure 6 An inner mounting shell 4 is provided between the protective shell 3 and the meter body 1. The inner mounting shell 4 includes a mounting box 41. The mounting box 41 is arranged along the axial direction of the measuring pipe 12 in the length direction. Mounting holes 411 are provided through the two side walls of the mounting box 41 in the length direction. The mounting holes 411 are inserted into the measuring pipe 12 and the measuring pipe 12 is slidably connected to the inner wall of the mounting hole 411 along its own axial direction.

[0068] The protective shell 3 is fitted onto the outside of the mounting box 41, with the clearance hole 311 communicating with the corresponding mounting hole 411. The mounting box 41 has several second connecting holes 412 on both sides along its length. These second connecting holes 412 are evenly spaced around the corresponding mounting hole 411, and each second connecting hole 412 corresponds to a first connecting hole 312, and the second connecting hole 412 is coaxially connected to the corresponding first connecting hole 312. The mounting bolt 313 is coaxially inserted into the corresponding first connecting hole 312, second connecting hole 412, and through hole on the first flange 221. Therefore, this arrangement enables the installation of the side sealing plate 31, the mounting box 41, and the instrument body 1.

[0069] Reference Figure 2 and Figure 6A second viewing hole 413 is provided on the upper side wall of the mounting box 41, penetrating the corresponding side wall of the mounting box 41. A viewing plate 414 is installed on the inner wall of the second viewing hole 413, and the viewing plate 414 closes the second viewing hole 413. The first viewing hole 3221 and the second viewing hole 413 are interconnected in the vertical direction. Therefore, it is convenient to view the data of the table 1 through the transparent plate 3222 and the viewing plate 414.

[0070] Reference Figure 2 and Figure 6 The enclosed box 32 is sleeved on the outside of the mounting box 41 along the axial direction of the measuring pipe 12. The inner wall of the enclosed box 32 fits against the corresponding outer wall of the mounting box 41, and the inner wall of the enclosed box 32 is slidably connected to the outer wall of the mounting box 41 along the axial direction of the measuring pipe 12. Therefore, it is convenient to disassemble the mounting box 41 and the enclosed box 32.

[0071] Reference Figure 6 A second feedback component 42 is provided between the outer wall of the mounting box 41 and the inner wall of the enclosed box 32. The second feedback component 42 includes several connecting grooves 421, which are formed on the outer wall of the mounting box 41. The length direction of the connecting grooves 421 is along the axial direction of the measuring pipe 12, and the several connecting grooves 421 are arranged at intervals along their width direction. The second feedback component 42 also includes several detection elements 422, which are arranged one-to-one with the connecting grooves 421 and are installed in the corresponding connecting grooves 421. The detection element 422 includes a third electrode plate 423 and a fourth electrode plate 424, which are arranged opposite to each other along the length direction of the corresponding connecting groove 421. Therefore, when the protective shell 3 is corroded and damaged, fluid will flow into the corresponding connecting groove 421. At this time, the third electrode plate 423 and the fourth electrode plate 424 are interconnected, which can detect whether the protective shell 3 is corroded in real time.

[0072] Reference Figure 7 and Figure 8 Several reinforcing components 43 are also provided between the outer wall of the mounting box 41 and the inner wall of the enclosed box 32. The several reinforcing components 43 are arranged at intervals along the width direction of the connecting groove 421.

[0073] The reinforcement component 43 includes a concealed groove 431 and a locking groove 432. The concealed groove 431 is formed on the outer wall of the mounting box 41, and its length direction is along the axial direction of the measuring pipe 12. The locking groove 432 is formed on the inner wall of the enclosed box 32, and its length direction is along the axial direction of the measuring pipe 12. Auxiliary grooves 433 are formed on opposite side walls of the locking groove 432 along the axial direction of the measuring pipe 12, and the auxiliary grooves 433 are formed along the length direction of the measuring pipe 12. The concealed groove 431 and the corresponding locking groove 432 are horizontally aligned and interconnected.

[0074] Reference Figure 7 and Figure 8 Two locking members 434 are arranged opposite each other along the length of the hidden groove 431. Each locking member 434 includes a locking plate 4341, which is inserted into and engages with both the hidden groove 431 and the locking groove 432 along its thickness. The inner walls of both the hidden groove 431 and the locking groove 432 are slidably connected to the locking plate 4341 along its thickness. The locking plate 4341 is also inserted into and engages with the corresponding auxiliary groove 433 along its length, and is slidably connected to the inner wall of the corresponding auxiliary groove 433 along its length.

[0075] Reference Figure 7 and Figure 8 An extension 4342 is provided on one side of the inner wall of the hidden groove 431 along the thickness direction of the locking plate 4341. The extension 4342 is made of electromagnet, and the locking plate 4341 is made of magnetic material. Therefore, by driving the drive member 435, the locking plate 4341 can slide in the hidden groove 431 and the locking groove 432 along its own thickness direction.

[0076] Reference Figure 7 and Figure 8 A driving member 435 is provided between the two locking members 434. The driving member 435 includes two push rods 4351. The length direction of the push rods 4351 is hidden in the length direction of the groove 431. The driving end of the push rods 4351 is connected to the locking plate 4341 and the driving end of the push rods 4351 is slidably connected to the push rods 4351 along the thickness direction of the locking plate 4341. The push rods 4351 are installed in the hidden groove 431.

[0077] Therefore, through the cooperation of the driving component 435 and the locking component 434, when it is necessary to install the mounting box 41 and the enclosed box 32, the protruding component 4342 drives the locking plate 4341 to pop out of the hidden groove 431 and insert into the locking groove 432. Under the action of the driving component 435, the locking plate 4341 is inserted into the corresponding auxiliary groove 433. At this time, the installation between the mounting box 41 and the enclosed box 32 is realized. Similarly, when it is necessary to disassemble the enclosed box 32, the locking plate 4341 is pulled out from the corresponding auxiliary groove 433, and then the protruding component 4342 retracts the locking plate 4341 into the hidden groove 431, thus disconnecting the connection between the mounting box 41 and the enclosed box 32.

[0078] Reference Figure 1 and Figure 3The first flange 221, located away from the connecting pipe 222, is connected to a connecting flange 24. The connecting flange 24 includes an extension pipe 241 and a second flange 242. Both ends of the extension pipe 241 are connected to the first flange 221 and the second flange 242 respectively, and the extension pipe 241 is interconnected with the connecting pipe 222. Therefore, the second flange 242 allows the water meter to be installed on the pipe, and the extension pipe 241 extends the distance between the first flange 221 and the second flange 242, ensuring the installation of the water meter and water pipe.

[0079] The implementation principle of this application embodiment is as follows: First, the water meter installation process is as follows: Insert the inner liner 21 into the measuring pipe 12, and connect the inner liner 21 to the measuring pipe 12 through two connecting flanges 22. Then, install a side sealing plate 31 and the mounting inner shell 4 onto the meter body 1, and fix the side sealing plate 31 and the mounting inner shell 4 with mounting bolts 313. After that, slide the sealed box 32 onto the mounting inner shell 4, and fix the sealed box 32 to the mounting inner shell 4 with several reinforcing components 43. Finally, install the remaining side sealing plate 31 onto the meter body 1, and fix the side sealing plate 31 to the corresponding first flange 221 and the mounting inner shell 4 with mounting bolts 313.

[0080] Secondly, the water meter's usage process is as follows: The water meter is connected to the corresponding pipe via the connecting flange 24. During daily use, the water meter's measurement data can be read through the first viewing hole 3221 and the second viewing hole 413. When the fluid flowing through the inner liner 21 corrodes it until it breaks, the first feedback component 23 can detect the damage and facilitate timely replacement. Similarly, when corrosive fluid is present in the environment outside the protective casing 3, and the fluid corrodes and breaks the protective casing 3, the second feedback component 42 can detect the damage and facilitate timely replacement.

[0081] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A smart water meter for use in nuclear power plants, comprising a meter body (1) and a pipeline protection mechanism (2), characterized in that, The meter body (1) includes a detection display (11) and a measuring pipe (12), wherein the detection display (11) is located outside the measuring pipe (12); The pipeline protection mechanism (2) includes an inner tube (21), which is inserted into the measuring pipeline (12) along its own axis, and the inner tube (21) is slidably connected to the inner wall of the measuring pipeline (12) along its own axis; A first feedback component (23) is provided between the outer wall of the inner sump (21) and the inner wall of the measuring pipe (12). The first feedback component (23) includes a trigger (232). A feedback groove (231) is provided on the outer wall of the inner sump (21), and the trigger (232) is installed on the inner wall of the feedback groove (231).

2. The smart water meter for use in nuclear power plants according to claim 1, characterized in that, Both ends of the inner liner (21) are provided with connecting flanges (22). The connecting flanges (22) include a first flange (221) and a connecting pipe (222). One end of the connecting pipe (222) is coaxially connected to the first flange (221), and the other end is sleeved on the outside of the inner liner (21). The inner wall of the connecting pipe (222) is connected to the outer wall of the inner liner (21) by a thread. The connecting pipe (222) is inserted into the measuring pipe (12) and the connecting pipe (222) is slidably connected to the inner wall of the measuring pipe (12).

3. A smart water meter for use in nuclear power plants according to claim 1, characterized in that, The trigger (232) includes a first electrode plate (2321) and a second electrode plate (2322). The feedback groove (231) is arranged along the axial direction of the measuring pipe (12) in the length direction. The first electrode plate (2321) and the second electrode plate (2322) are spaced apart along the length direction of the feedback groove (231).

4. A smart water meter for use in nuclear power plants according to claim 1, characterized in that, The outer side of the meter body (1) is fitted with a protective shell (3), the protective shell (3) includes a closed box (32) and two side sealing plates (31), the side sealing plates (31) are provided with a clearance hole (311), the clearance hole (311) is inserted into the measuring pipe (12); The enclosed box (32) has sliding connection holes (324) through both sides of the measuring pipe (12) along the axial direction. The meter body (1) is inserted into the sliding connection hole (324) along the axial direction of the measuring pipe (12). The two side sealing plates (31) are located on both sides of the enclosed box (32) along the axial direction of the measuring pipe (12), and the side sealing plates (31) close the corresponding sliding connection holes (324).

5. A smart water meter for use in nuclear power plants according to claim 4, characterized in that, The outer side of the watch body (1) is fitted with an inner shell (4), the sealed box (32) is fitted on the inner shell (4), and the side sealing plate (31) is connected to the inner shell (4).

6. A smart water meter for use in nuclear power plants according to claim 5, characterized in that, A second feedback component (42) is provided between the inner wall of the closed box (32) and the mounting inner shell (4). The second feedback component (42) includes a detection element (422). A connecting groove (421) is provided on the outer wall of the mounting inner shell (4). The length direction of the connecting groove (421) is arranged along the axial direction of the measuring pipe (12). The detection element (422) is installed on the inner wall of the connecting groove (421).

7. A smart water meter for use in nuclear power plants according to claim 6, characterized in that, The detection element (422) includes a third electrode plate (423) and a fourth electrode plate (424), which are spaced apart from each other along the length of the connecting groove (421).

8. A smart water meter for use in a nuclear power plant according to claim 5, characterized in that, A reinforcing component (43) is provided between the inner wall of the enclosed box (32) and the mounting inner shell (4). The reinforcing component (43) includes a locking groove (432). The locking groove (432) is opened on the inner wall of the enclosed box (32). An auxiliary groove (433) is opened on one side wall of the locking groove (432) along the axial direction of the measuring pipe (12). The mounting inner shell (4) is provided with a locking member (434), the locking member (434) includes a locking plate (4341), the locking plate (4341) is inserted into the locking groove (432) along the depth direction of the locking groove (432), the locking plate (4341) is slidably connected to the inner wall of the locking groove (432) along the depth direction of the locking groove (432), and the locking plate (4341) is connected with a protruding member (4342) that can drive the locking plate (4341) to move toward or away from the inner wall of the closed box (32). The locking member (434) is connected to a driving member (435) capable of driving the locking member (434) to move along the axial direction of the measuring pipe (12). The locking plate (4341) is inserted into the auxiliary groove (433) along the axial direction of the measuring pipe (12). The locking plate (4341) is slidably connected to the inner wall of the auxiliary groove (433) along the axial direction of the measuring pipe (12).

9. A smart water meter for use in nuclear power plants according to claim 4, characterized in that, The enclosed box (32) has a first viewing hole (3221) on the side facing the detection display (11), and a transparent plate (3222) is installed on the inner wall of the first viewing hole (3221), and the transparent plate (3222) closes the first viewing hole (3221).

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