A low pressure loss ultrasonic measuring device of the through type

Abstract

The application relates to a permeable low-pressure-loss ultrasonic measuring device, which comprises a shell with a flow passage, the ultrasonic measuring device comprising a first reflection part, a second reflection part and an intermediate reflection part located between the first reflection part and the second reflection part; the permeable low-pressure-loss ultrasonic measuring device comprises a first blocking part and a second blocking part, both of which are connected with the shell, the first blocking part is located between the intermediate reflection part and the flow passage, the second blocking part is located on the side of the intermediate reflection part away from the first blocking part, a limiting space for limiting the intermediate reflection part is formed between the first blocking part and the second blocking part, the intermediate reflection part is located in the limiting space, the shell has a through hole, and the through hole is connected with the limiting space and the flow passage. The application has the effect of reducing the damage of the intermediate reflection part caused by fluid impact.

Description

Technical Field

[0001] This application relates to the field of flow meters, and more particularly to a transparent, low-pressure-loss ultrasonic measuring device. Background Technology

[0002] Ultrasonic flow measurement offers numerous advantages over traditional mechanical and electromagnetic flow meters. Compared to these, it boasts higher measurement accuracy, greater adaptability to pipe diameters, non-contact fluid operation, ease of use, and convenient digital management. In recent years, advancements in electronic technology have significantly reduced the cost and increased the processing speed of electronic components, leading to lower manufacturing costs and higher accuracy for ultrasonic flow meters. This has also resulted in the widespread adoption of transparent, low-pressure-loss ultrasonic flow measurement devices.

[0003] The related technology of a transparent low-pressure-loss ultrasonic measuring device includes a housing, a first transducer, and a second transducer. The housing is provided with a first reflector, a second reflector, and an intermediate reflector. Along the axial direction of the housing, the intermediate reflector is located between the first reflector and the second reflector. The first reflector, the second reflector, and the intermediate reflector can reflect the ultrasonic waves emitted by the first transducer three times to reach the second transducer, thereby realizing the acquisition of flow signals. The housing has a mounting groove that is recessed from the outer surface of the housing into the interior of the housing. The intermediate reflector is located in the mounting groove and can contact the fluid inside the housing.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: since there is no obstruction on the side of the intermediate reflector away from the fluid, if the fluid pressure is too high, the intermediate reflector is easily damaged. Utility Model Content

[0005] To improve the structural strength of the intermediate reflector, this application provides a transparent, low-pressure-loss ultrasonic measuring device.

[0006] The transparent, low-pressure-loss ultrasonic measuring device provided in this application adopts the following technical solution: A transparent, low-pressure-loss ultrasonic measuring device includes a housing with a flow channel. The device includes a first reflector, a second reflector, and an intermediate reflector located between the first and second reflectors. The device also includes a first blocking part and a second blocking part, both connected to the housing. The first blocking part is located between the intermediate reflector and the flow channel, and the second blocking part is located on the side of the intermediate reflector away from the first blocking part. A limiting space is formed between the first and second blocking parts to limit the intermediate reflector, which is located within the limiting space. The housing has a through hole connecting the limiting space and the flow channel.

[0007] By adopting the above technical solution, the first blocking part is located between the intermediate reflective part and the flow channel, and the second blocking part is located on the side of the intermediate reflective part away from the first blocking part. A limiting space for limiting the intermediate reflective part is formed between the first blocking part and the second blocking part. The intermediate reflective part is located in the limiting space. The intermediate reflective part is blocked by the first blocking part and the second blocking part. When the fluid impacts the intermediate reflective part, the second blocking part can support the intermediate reflective part and reduce the occurrence of damage to the intermediate reflective part when it is impacted by the fluid.

[0008] Preferably, the housing includes a first connecting portion and a second connecting portion, the first blocking portion includes a first sub-blocking portion and a second sub-blocking portion, the first connecting portion has the first sub-blocking portion, the second connecting portion has the second sub-blocking portion, the first connecting portion has a portion of the second blocking portion, the second connecting portion has another portion of the second blocking portion, and the first connecting portion and the second connecting portion are detachably connected.

[0009] By setting the first connecting part and the second connecting part, the intermediate reflector can be detachably embedded in the first connecting part and the second connecting part, which makes it easy to replace the intermediate reflector. When the intermediate reflector needs to be replaced, only the first connecting part and the second connecting part need to be disassembled, and then the intermediate reflector can be replaced.

[0010] Preferably, the housing includes a guide post connected to the first connecting portion, the second connecting portion having a guide groove, and the guide post being at least partially located in the guide groove.

[0011] The guide post facilitates the disassembly and installation of the first and second connecting parts. During installation, simply insert the guide post into the guide groove to install the first and second connecting parts, making installation convenient.

[0012] Preferably, the intermediate reflective portion has a reflective plane, and the distribution direction of the first connecting portion and the second connecting portion is defined as a first direction. The first direction is parallel to the reflective plane and parallel to the extension direction of the guide post.

[0013] It is easier to detach the intermediate reflector from the first connecting part and the second connecting part. Simply move the first connecting part away from the second connecting part in the first direction to detach the intermediate reflector from the first connecting part and the second connecting part.

[0014] Preferably, the housing includes an outer shell, which is an integral piece. The flow channel includes a first flow channel and a second flow channel. The outer shell has the first flow channel. The first connecting portion and the second connecting portion are both located within the first flow channel. The first connecting portion and the second connecting portion form the second flow channel. The first flow channel and the second flow channel are in communication.

[0015] By using an integrated outer shell, both the first connecting part and the second connecting part are placed inside the first flow channel. The wall corresponding to the first flow channel limits the first connecting part and the second connecting part, reducing the possibility of the first connecting part and the second connecting part separating. The structure is simple and the limiting is reliable.

[0016] Preferably, the housing has a through hole, the intermediate reflector is exposed through the through hole, the transparent low-pressure-loss ultrasonic measuring device includes an abutment post, the abutment post is at least partially located in the through hole, the transparent low-pressure-loss ultrasonic measuring device includes an electrical control housing, the electrical control housing is detachably connected to the outer shell, the abutment post is connected to the electrical control housing, and the abutment post is used to contact the intermediate reflector.

[0017] Due to manufacturing errors, there may be a gap between the intermediate reflector and the second blocking part. During use, fluid may move the intermediate reflector closer to the second blocking part, which may prevent the first reflector, the second reflector, and the intermediate reflector from delivering the ultrasonic waves emitted by the first transducer to the second transducer after three reflections.

[0018] By using an abutment post to contact the intermediate reflector, the possibility of the intermediate reflector moving within the confined space due to fluid can be reduced.

[0019] Preferably, the abutment post is threadedly connected to the electrical control housing.

[0020] The abutment post is threadedly connected to the electrical control housing. By rotating the abutment post, it is possible to ensure that the abutment post contacts the intermediate reflector.

[0021] Preferably, the abutment post has a temperature measuring cavity, and the transparent low-pressure-loss ultrasonic measuring device includes a temperature sensing unit, which is at least partially located within the temperature measuring cavity.

[0022] By placing the temperature sensing element inside the temperature measuring cavity, the contact post enables the intermediate reflective element to make contact. This also enables the temperature sensor to perform its temperature sensing function. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the transparent low-pressure-loss ultrasonic measuring device of this application.

[0024] Figure 2 yes Figure 1 A schematic diagram of the explosion structure.

[0025] Figure 3 yes Figure 1 A cross-sectional view.

[0026] Figure 4 yes Figure 2 A magnified view of a portion of circle A in the middle.

[0027] Figure 5 yes Figure 2 A three-dimensional sectional view of the first connecting part and the second connecting part.

[0028] Figure 6 yes Figure 5 A magnified view of a portion of the area circled in the middle, C.

[0029] Figure 7 yes Figure 5 A three-dimensional sectional view of the first connecting part and the second connecting part from another angle. Figure 8 yes Figure 3 A magnified view of a portion of circle B in the middle.

[0030] Reference numerals: 1. Housing; 11. First connecting part; 111. Guide post; 12. Second connecting part; 121. Guide groove; 13. Outer shell; 14. First mounting hole; 15. Second mounting hole; 16. First transducer; 17. Second transducer; 2. Flow channel; 21. First flow channel; 22. Second flow channel; 31. First reflector; 32. Second reflector; 33. Intermediate reflector; 331. Reflecting plane; 41. First blocking part; 411. First sub-blocking part; 412. Second sub-blocking part; 42. Second blocking part; 43. Limiting space; 5. Through hole; 6. Through hole; 61. Abutment post; 62. Electrical control housing; 63. Temperature measuring cavity; 64. Temperature sensing part; X, First direction. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0032] This application discloses a transparent, low-pressure-loss ultrasonic measuring device. (Refer to...) Figure 1 as well as Figure 2 The transparent low-pressure-loss ultrasonic measuring device includes a housing 1, the housing 1 having a flow channel 2, the flow channel 2 including a first flow channel 21 and a second flow channel 22, the housing 1 including a first connecting part 11, a second connecting part 12 and an outer shell 13.

[0033] Reference Figure 2 as well as Figure 3 The outer casing 13 has a first flow channel 21, and the first connecting part 11 and the second connecting part 12 are both located in the first flow channel 21. The first connecting part 11 and the second connecting part 12 are detachably connected. The first connecting part 11 and the second connecting part 12 form a second flow channel 22, and the first flow channel 21 and the second flow channel 22 are in communication.

[0034] Reference Figure 2 as well as Figure 4 The housing 1 includes a guide post 111, and the second connecting part 12 has a guide groove 121. The guide post 111 and the first connecting part 11 are integrally injection molded, and the guide post 111 is at least partially located in the guide groove 121.

[0035] Reference Figure 2 as well as Figure 4 Multiple guide posts 111 are provided, and guide grooves 121 are provided one-to-one with guide posts 111. The first connecting part 11 and the second connecting part 12 can contact the wall corresponding to the first flow channel 21.

[0036] Reference Figure 1 as well as Figure 3 The transparent, low-pressure-loss ultrasonic measuring device includes an electrical control housing 62, which is detachably connected to the outer casing 13. Specifically, the electrical control housing 62 is detachably connected to the outer casing 13 by screws. Furthermore, the electrical control housing 62 is at least partially located on the periphery of the outer casing 13.

[0037] Reference Figure 2 as well as Figure 3The transparent low-pressure-loss ultrasonic measuring device has a first mounting hole 14 and a second mounting hole 15. Both the first mounting hole 14 and the second mounting hole 15 penetrate the housing 13, the first connecting portion 11, and the second connecting portion 12 along the axial direction of the housing 13. The first mounting hole 14 communicates with the second flow channel 22, and the second mounting hole 15 also communicates with the second flow channel 22. The first mounting hole 14 and the second mounting hole 15 are distributed along the axial direction of the housing 13. The transparent low-pressure-loss ultrasonic measuring device includes a first transducer 16 and a second transducer 17. The first transducer 16 is at least partially located in the first mounting hole 14, and the first transducer 16 is sealed to the wall corresponding to the first mounting hole 14, specifically through a sealing ring. The second transducer 17 is at least partially located in the second mounting hole 15, and the second transducer 17 is sealed to the wall corresponding to the second mounting hole 15, specifically through a sealing ring. The first transducer 16 and the second transducer 17 are exposed in the second flow channel 22.

[0038] Reference Figure 1 as well as Figure 3 Both the first transducer 16 and the second transducer 17 are electrically connected to the electronic control board inside the electronic control housing 62; the center distance between the first transducer 16 and the second transducer 17 is 58 mm.

[0039] Reference Figure 1 as well as Figure 3 The transparent low-pressure-loss ultrasonic measuring device includes a first reflector 31, a second reflector 32, and an intermediate reflector 33. Along the axial direction of the outer casing 13, the intermediate reflector 33 is located between the first reflector 31 and the second reflector 32. Along the radial direction of the outer casing 13, the first reflector 31 is located on one side of the first transducer 16, and the second reflector 32 is located on one side of the second transducer 17. Along the radial direction of the outer casing 13, the first reflector 31 and the second reflector 32 are both located on the same side of the intermediate reflector 33. Along the radial direction of the outer casing 13, the first reflector 31 and the intermediate reflector 33 are located on both sides of the axial direction of the outer casing 13. The first reflector 31, the second reflector 32, and the intermediate reflector 33 can reflect the ultrasonic waves emitted by the first transducer 16 three times to reach the second transducer 17, thereby realizing the acquisition of flow signals.

[0040] Reference Figure 3 The reflection angle of the ultrasonic wave from the first reflector 31 to the intermediate reflector 33 is 34.5 degrees, the reflection angle of the ultrasonic wave from the intermediate reflector 33 to the second reflector 32 is 69 degrees, and the reflection angle of the ultrasonic wave from the second reflector 32 to the second transducer 17 is 34.5 degrees.

[0041] Reference Figure 5 , Figure 6 as well as Figure 7The transparent low-pressure-loss ultrasonic measuring device includes a first blocking part 41 and a second blocking part 42. The first blocking part 41 includes a first sub-blocking part 411 and a second sub-blocking part 412. The first connecting part 11 has the first sub-blocking part 411, and the second connecting part 12 has the second sub-blocking part 412. Along the radial direction of the housing 13, the first sub-blocking part 411 and the second sub-blocking part 412 are both located on the side of the intermediate reflecting part 33 near the second flow channel 22. The first connecting part 11 has a part of the second blocking part 42, and the second connecting part 12 has another part of the second blocking part 42. Along the radial direction of the housing 13, the second blocking part 42 is located on the side of the intermediate reflecting part 33 away from the first blocking part 41.

[0042] Specifically, refer to Figure 6 as well as Figure 7 There are two first sub-blocking parts 411 and two second sub-blocking parts 412. The two first sub-blocking parts 411 are distributed along the axial direction of the outer shell 13, and the two second sub-blocking parts 412 are distributed along the axial direction of the outer shell 13.

[0043] Reference Figure 6 as well as Figure 7 A limiting space 43 for limiting the intermediate reflective part 33 is formed between the first sub-blocking part 411, the second sub-blocking part 412 and the second blocking part 42, and the intermediate reflective part 33 is located in the limiting space 43.

[0044] Specifically, refer to Figure 6 as well as Figure 7 The first connecting portion 11 and the second connecting portion 12 have through holes 5. Two first sub-blocking portions 411 and two second sub-blocking portions 412 surround and form the through hole 5. The through hole 5 is located on the side of the intermediate reflective portion 33 facing the second flow channel 22. The two first sub-blocking portions 411 and two second sub-blocking portions 412 are located around the through hole 5. The through hole 5 connects the limiting space 43 and the second flow channel 22. The intermediate reflective layer has a reflective plane 331, which is partially exposed to the through hole 5.

[0045] Furthermore, refer to Figure 2 The distribution direction of the first connecting part 11 and the second connecting part 12 is defined as the first direction X. The first direction X is parallel to the reflective plane 331 and parallel to the extension direction of the guide post 111.

[0046] Reference Figure 4 as well as Figure 8The outer casing 13 has a through hole 6, which penetrates the outer casing 13, the first connecting part 11, and the second connecting part 12. The first connecting part 11 and the second connecting part 12 form a partial wall of the through hole 6. The transparent low-pressure-loss ultrasonic measuring device includes an abutment post 61, which is threadedly connected to the electrical control housing 62. A temperature measuring cavity 63 is formed at the end of the abutment post 61 away from the axis of the outer casing 13. The transparent low-pressure-loss ultrasonic measuring device includes a temperature sensing part 64, which is at least partially located in the temperature measuring cavity 63 and is used to detect temperature. Specifically, the temperature sensing part 64 includes an NTC. The end of the abutment post 61 near the axis of the outer casing 13 is pressed against the intermediate reflector 33.

[0047] The implementation principle of the transparent low-pressure-loss ultrasonic measuring device in this application embodiment is as follows: During installation, the intermediate reflector 33 is placed into the limiting space 43, and the first blocking part 41 and the second blocking part 42 limit the intermediate reflector 33. Then, the guide post 111 on the first connecting part 11 is inserted into the guide groove 121 on the second connecting part 12 along the first direction X to achieve the pre-positioning of the first connecting part 11 and the second connecting part 12. Then, the first connecting part 11 and the second connecting part 12 are inserted into the first flow channel 21 of the outer shell 13 to limit the first connecting part 11 and the second connecting part 12.

[0048] When further reinforcement of the intermediate reflector 33 is required, the abutment post 61 is rotated to make the abutment post 61 abut against the intermediate reflector 33. The W-shaped reflective structure adopted means that the reflective area is not in the center position, so the collection is more comprehensive, which can also improve the measurement accuracy, reduce pipeline pressure loss, and expand the range ratio.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A transparent, low-pressure-loss ultrasonic measuring device, characterized in that: The device includes a housing (1) having a flow channel (2), and a transparent low-pressure-loss ultrasonic measuring device including a first reflector (31), a second reflector (32), and an intermediate reflector (33), the intermediate reflector (33) being located between the first reflector (31) and the second reflector (32); the transparent low-pressure-loss ultrasonic measuring device includes a first blocking part (41) and a second blocking part (42), both the first blocking part (41) and the second blocking part (42) being connected to the housing (1), the first blocking part... (41) The second blocking part (42) is located between the intermediate reflective part (33) and the flow channel (2). The second blocking part (42) is located on the side of the intermediate reflective part (33) away from the first blocking part (41). A limiting space (43) for limiting the intermediate reflective part (33) is formed between the first blocking part (41) and the second blocking part (42). The intermediate reflective part (33) is located in the limiting space (43). The housing (1) has a through hole (5). The through hole (5) connects the limiting space (43) and the flow channel (2).

2. The transparent low-pressure-loss ultrasonic measuring device according to claim 1, characterized in that: The housing (1) includes a first connecting part (11) and a second connecting part (12). The first blocking part (41) includes a first sub-blocking part (411) and a second sub-blocking part (412). The first connecting part (11) has the first sub-blocking part (411), and the second connecting part (12) has the second sub-blocking part (412). The first connecting part (11) has a portion of the second blocking part (42), and the second connecting part (12) has another portion of the second blocking part (42). The first connecting part (11) and the second connecting part (12) are detachably connected.

3. The transparent low-pressure-loss ultrasonic measuring device according to claim 2, characterized in that: The housing (1) includes a guide post (111) connected to the first connecting part (11), and the second connecting part (12) has a guide groove (121), with the guide post (111) at least partially located in the guide groove (121).

4. The transparent low-pressure-loss ultrasonic measuring device according to claim 3, characterized in that: The intermediate reflective part (33) has a reflective plane (331), and the distribution direction of the first connecting part (11) and the second connecting part (12) is defined as the first direction (X). The first direction (X) is parallel to the reflective plane (331) and parallel to the extension direction of the guide post (111).

5. The transparent low-pressure-loss ultrasonic measuring device according to any one of claims 2-4, characterized in that: The housing (1) includes an outer shell (13), which is an integral piece. The flow channel (2) includes a first flow channel (21) and a second flow channel (22). The outer shell (13) has the first flow channel (21). The first connecting part (11) and the second connecting part (12) are both located in the first flow channel (21). The first connecting part (11) and the second connecting part (12) form the second flow channel (22). The first flow channel (21) and the second flow channel (22) are in communication.

6. The transparent low-pressure-loss ultrasonic measuring device according to claim 5, characterized in that: The housing (1) has a through hole (6), the intermediate reflector (33) is exposed through the through hole (6), the transparent low-pressure-loss ultrasonic measuring device includes an abutment post (61), the abutment post (61) is at least partially located in the through hole (6), the transparent low-pressure-loss ultrasonic measuring device includes an electrical control housing (62), the electrical control housing (62) is detachably connected to the outer shell (13), the abutment post (61) is connected to the electrical control housing (62), and the abutment post (61) is used to contact the intermediate reflector (33).

7. The transparent low-pressure-loss ultrasonic measuring device according to claim 6, characterized in that: The abutment post (61) is threadedly connected to the electrical control housing (62).

8. The transparent low-pressure-loss ultrasonic measuring device according to any one of claims 6-7, characterized in that: The abutment post (61) has a temperature measuring cavity (63), and the transparent low-pressure-loss ultrasonic measuring device includes a temperature sensing part (64), which is at least partially located inside the temperature measuring cavity (63).

9. The transparent low-pressure-loss ultrasonic measuring device according to claim 1, characterized in that: The transparent low-pressure-loss ultrasonic measuring device includes a first transducer (16) and a second transducer (17). The first reflector (31), the second reflector (32) and the intermediate reflector (33) can reflect the ultrasonic waves emitted by the first transducer (16) three times to reach the second transducer (17).

10. The transparent low-pressure-loss ultrasonic measuring device according to claim 9, characterized in that: The center distance between the first transducer (16) and the second transducer (17) is 58 mm. The reflection angle of the ultrasonic wave from the first reflector (31) to the intermediate reflector (33) is 34.5 degrees. The reflection angle of the ultrasonic wave from the intermediate reflector (33) to the second reflector (32) is 69 degrees. The reflection angle of the ultrasonic wave from the second reflector (32) to the second transducer (17) is 34.5 degrees.

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