Ultrasonic water meter

Abstract

An ultrasonic water meter tandem pipeline is used for estimating the flow speed of fluid according to the time difference from ultrasonic wave transmitting to ultrasonic wave receiving. The ultrasonic water meter comprises a pipe body, a transmitting probe, a receiving probe and a reflecting piece, and the pipe body is used for being connected to the two ends of a pipeline in series to form a water inlet and a water outlet respectively. A first through hole and a second through hole which are communicated are formed in the pipe body, and a reducing part is arranged between the first through hole and the second through hole. The transmitting probe is arranged in the first through hole and used for transmitting ultrasonic waves into the pipe body. The receiving probe is arranged in the second through hole, and the transmitting probe and the receiving probe are arranged on the two corresponding sides of the normal of the reflecting part.

Description

Technical Field

[0001] The utility model relates to a water meter, in particular to an ultrasonic water meter. Background Art

[0002] A water meter (also called a water meter or flow meter) is a device used to measure the volume or flow of a fluid flowing through a pipe. Water meters are commonly found at the user end of tap water. They are used to measure the water consumption of residential and commercial buildings supplied by the public water supply system and are used as a basis for calculating water charges. Water meters can also be used at the water source, at various locations throughout the water supply system, or in factory fluid delivery pipelines to determine the flow and flow rate delivered through that part of the system.

[0003] Generally speaking, water meters can be divided into many types according to their measurement methods. Users can choose the appropriate water meter type for measuring flow rate and flow based on different flow measurement methods, types of end users, required flow rates, and measurement accuracy requirements. Among the many types of water meters, ultrasonic water meters mainly use ultrasonic transmitters to send ultrasonic waves through fluids to determine the flow rate of the fluid, and convert the flow rate of the fluid into the volume of the fluid to convert the flow rate of the fluid.

[0004] However, the ultrasonic wave sent by the ultrasonic transmitter must pass through a representative cross section, which depends on the flow profile and requires long inlet and outlet parts. Therefore, if the flow rate of the fluid is low, it is easy for the measured value to deviate, resulting in inaccurate measurement or even no measurement. Therefore, how to design an ultrasonic water meter to increase and stabilize the flow rate of the fluid and improve the range ratio so that the flow rate can be measured even at a low flow rate is a major topic that the inventor wants to study. Summary of the invention

[0005] In order to solve the above problems, the utility model provides an ultrasonic water meter to overcome the problems of the prior art. Therefore, the ultrasonic water meter of the utility model is connected in series with the pipeline to measure the flow rate of the fluid flowing through the pipeline. The ultrasonic water meter includes a pipe body, a transmitting probe, a receiving probe and a reflector. The pipe body is used to form a water inlet and a water outlet at both ends of the serial pipeline, and a first through hole and a second through hole are formed in the pipe body. Among them, a reduction portion is included between the first through hole and the second through hole, and the reduction portion is used to reduce the cross-sectional area of ​​the pipe body to increase the flow rate by reducing the cross-sectional area. The transmitting probe is arranged in the first through hole and is used to transmit ultrasonic waves into the pipe body. The receiving probe is arranged in the second through hole, and the reflector is used to reflect the ultrasonic waves emitted by the transmitting probe to the receiving probe. The transmitting probe and the receiving probe are arranged on the corresponding two sides of the normal line of the reflector, and the ultrasonic water meter estimates the flow rate according to the time difference from ultrasonic emission to reception.

[0006] In one embodiment, a third through hole is formed in the tube body, and the reflective element is disposed in the third through hole.

[0007] In one embodiment, the reflector is disposed at the reduced diameter portion, the transmitting probe is disposed between the water inlet and the reduced diameter portion, and the receiving probe is disposed between the water outlet and the reduced diameter portion.

[0008] In one embodiment, the ultrasonic water meter further includes a flow guide, a fourth through hole is formed in the tube body, and the flow guide is disposed in the fourth through hole and extends into the tube body to increase the flow rate by guiding the fluid.

[0009] In one embodiment, the ultrasonic wave is transmitted from the transmitting probe to the receiving probe through the transmission path, and the fourth through hole is formed between the water inlet and the first through hole to suppress bubbles in the fluid from blocking the transmission path through the guide member.

[0010] In one embodiment, the ultrasonic wave is transmitted from the transmitting probe to the receiving probe through the transmission path, and the fourth perforation is formed between the first perforation and the second perforation; the guide member includes an opening, and the ultrasonic wave is transmitted to the reflecting member through the opening.

[0011] In one embodiment, the reflective element is formed at one end of the flow guide element opposite to the transmitting probe, and is integrally formed with the flow guide element.

[0012] In one embodiment, the reflective element forms a concave parabolic structure to reduce the reflection angle of the reflective element.

[0013] In one embodiment, the reflector includes a body and a reflective portion. The body includes an adjustment device, and the reflective portion is disposed on one side of the body to provide a normal line. The adjustment device is used to adjust the reflective portion to change the position of the normal line.

[0014] In order to solve the above problems, the utility model provides an ultrasonic water meter to overcome the problems of the prior art. Therefore, the ultrasonic water meter of the present invention is connected in series with the pipeline to measure the flow rate of the fluid flowing through the pipeline. The ultrasonic water meter includes a pipe body, a transmitting probe, a receiving probe, a first reflecting member and a second reflecting member. The pipe body is used to form a water inlet and a water outlet at both ends of the serial pipeline, and a first through hole and a second through hole are formed in the pipe body. Among them, a reducing portion is included between the first through hole and the second through hole, and the reducing portion is used to reduce the cross-sectional area of ​​the pipe body to increase the flow rate by reducing the cross-sectional area. The transmitting probe is arranged in the first through hole, and is used to transmit ultrasonic waves into the pipe body. The receiving probe is arranged in the second through hole, and the first reflecting member provides a first normal line to reflect the ultrasonic wave emitted by the transmitting probe. The second reflecting member provides a second normal line and is used to reflect the ultrasonic wave to the receiving probe. The transmitting probe and the second reflecting element are arranged on two corresponding sides of the first normal line, and the receiving probe and the first reflecting element are arranged on two corresponding sides of the second normal line; the ultrasonic water meter estimates the flow rate according to the time difference from ultrasonic emission to reception.

[0015] In one embodiment, two third through holes are formed in the tube body, and the first reflective element and the second reflective element are respectively disposed in the third through holes.

[0016] In one embodiment, the first reflective member and the second reflective member are both disposed at the reduced diameter portion, the transmitting probe is disposed between the water inlet and the reduced diameter portion, and the receiving probe is disposed between the water outlet and the reduced diameter portion.

[0017] In one embodiment, the first reflector and the second reflector are not disposed in the reduced diameter portion, and the transmitting probe and the first reflector are disposed between the water inlet and the reduced diameter portion, and the receiving probe and the second reflector are disposed between the water outlet and the reduced diameter portion.

[0018] In one embodiment, the ultrasonic water meter further includes a flow guide, a fourth through hole is formed in the tube body, and the flow guide is disposed in the fourth through hole and extends into the tube body to increase the flow rate by guiding the fluid.

[0019] In one embodiment, the ultrasonic wave is transmitted from the transmitting probe to the receiving probe through the transmission path, and the fourth through hole is formed between the water inlet and the first through hole to suppress bubbles in the fluid from blocking the transmission path through the guide member.

[0020] In one embodiment, the ultrasonic wave is transmitted from the transmitting probe to the receiving probe through the transmission path, and the fourth perforation is formed between the first perforation and the second perforation; the guide member includes an opening, and the ultrasonic wave is transmitted to the first reflector through the opening.

[0021] In one embodiment, the first reflective member is formed at an end of the guide member opposite to the transmitting probe, or at an end of the guide member identical to the receiving probe, and the first reflective member and the guide member are integrally formed.

[0022] In one embodiment, the first reflector is formed at an end of the guide member that is the same as the receiving probe, the second reflector is formed at an end of the guide member that is opposite to the transmitting probe, and the first reflector, the second reflector and the guide member are integrally formed.

[0023] In one embodiment, the first reflective element or the second reflective element forms a concave parabolic structure to reduce the reflection angle of the first reflective element or the second reflective element.

[0024] In one embodiment, the first reflector or the second reflector comprises a body and a reflective portion, respectively. The body comprises an adjustment device, and the reflective portion is disposed on one side of the body to provide a first normal line or a second normal line. The adjustment device is used to adjust the reflective portion to change the position of the first normal line or the second normal line.

[0025] The main purpose and effect of the utility model is that the ultrasonic water meter of the utility model reduces the cross-sectional area of ​​the tube body through the diameter reduction part, so as to increase and stabilize the flow rate of the fluid through the reduction of the cross-sectional area of ​​the tube body, thereby improving the range ratio. In this way, the flow rate of the fluid can still be measured even in a state of low flow rate.

[0026] In order to further understand the technology, means and effects adopted by the present invention to achieve the intended purpose, please refer to the following detailed description and drawings of the present invention. It is believed that the purpose, characteristics and features of the present invention can be deeply and specifically understood from them. However, the drawings are only provided for reference and explanation and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure configuration of the ultrasonic water meter of the utility model;

[0028] Figure 2A This is a structural appearance diagram of the first embodiment of the ultrasonic water meter of the utility model;

[0029] Figure 2B It is a cross-sectional schematic diagram of the first embodiment of the ultrasonic water meter of the utility model from the water inlet to the water outlet;

[0030] Figure 2C It is a longitudinal cross-sectional diagram of the first embodiment of the ultrasonic water meter of the utility model from the water inlet to the water outlet.

[0031] Figure 3A It is a schematic longitudinal section from the water inlet to the water outlet of the first embodiment of the first deformation structure of the ultrasonic water meter of the utility model.

[0032] Figure 3B It is a schematic longitudinal section from the water inlet to the water outlet of the first embodiment of the second deformation structure of the ultrasonic water meter of the utility model.

[0033] Figure 3C It is a schematic longitudinal section from the water inlet to the water outlet of the first embodiment of the third deformation structure of the ultrasonic water meter of the utility model.

[0034] Figure 4A This is a structural appearance diagram of the second embodiment of the ultrasonic water meter of the utility model.

[0035] Figure 4B It is a cross-sectional schematic diagram from the water inlet to the water outlet of the second embodiment of the ultrasonic water meter of the utility model.

[0036] Figure 4C It is a longitudinal cross-sectional diagram of the second embodiment of the ultrasonic water meter of the utility model from the water inlet to the water outlet.

[0037] Figure 5AIt is a schematic longitudinal section from the water inlet to the water outlet of the second embodiment of the first deformation structure of the ultrasonic water meter of the utility model.

[0038] Figure 5B It is a schematic longitudinal section from the water inlet to the water outlet of the second embodiment of the second deformation structure of the ultrasonic water meter of the utility model.

[0039] Figure 5C It is a schematic longitudinal section from the water inlet to the water outlet of the second embodiment of the third deformation structure of the ultrasonic water meter of the utility model.

[0040] Fig. 6A It is a longitudinal cross-sectional diagram of the third embodiment of the ultrasonic water meter of the utility model from the water inlet to the water outlet.

[0041] Figure 6B It is a longitudinal cross-sectional diagram from the water inlet to the water outlet of the third embodiment of the ultrasonic water meter deformation structure of the utility model.

[0042] Fig. 7A It is a longitudinal cross-sectional diagram of the fourth embodiment of the ultrasonic water meter of the utility model from the water inlet to the water outlet.

[0043] Figure 7B It is a schematic longitudinal section from the water inlet to the water outlet of the fourth embodiment of the first deformation structure of the ultrasonic water meter of the utility model.

[0044] Figure 7C It is a schematic longitudinal section from the water inlet to the water outlet of the fourth embodiment of the second deformation structure of the ultrasonic water meter of the utility model.

[0045] Wherein, the accompanying drawings are marked as follows:

[0046] 100: Ultrasonic water meter 100A: Tube

[0047] 100-1: Water inlet 100-2: Water outlet

[0048] H1: First hole H2: Second hole

[0049] H3: The third perforation H4: The fourth perforation

[0050] 100B: Reduced diameter part 1: Transmitter probe

[0051] 12: Main body 14: Transmitter

[0052] 2: Receiving probe 22: Main body

[0053] 24: Receiving end 3: First reflector

[0054] 32: Body 34: Reflective part

[0055] N1: First normal 4: Second reflector

[0056] 42: Body 44: Reflective part

[0057] N2: Second normal 5: Flow guide

[0058] 52: Main body 54: Guide part

[0059] 542: opening 322, 422: adjustment device

[0060] 6: Reflector N: Normal

[0061] P: Waterproof ring 200: Pipe

[0062] F: Fluid L: Transfer path

[0063] W1, W2: Width A: Angle DETAILED DESCRIPTION

[0064] The technical content and detailed description of the utility model are described as follows with the accompanying drawings:

[0065] See also Figure 1 Schematic diagram of the structure configuration of the new ultrasonic water meter. The ultrasonic water meter 100 is connected in series with the pipe 200, and measures the flow rate of the fluid F flowing through the pipe 200. The two ends of the ultrasonic water meter 100 respectively form a water inlet 100-1 and a water outlet 100-2, and the ultrasonic water meter 100 is connected in series with the pipe 200 through the water inlet 100-1 and the water outlet 100-2. The fluid F flows to the water inlet 100-1 through the pipe 200, and flows to the water outlet 100-2 through the pipe body 100A. The ultrasonic water meter 100 provides an ultrasonic wave in the pipe body 100A to estimate the flow rate according to the time difference between the emission and reception of the ultrasonic wave, and estimates the flow rate according to the flow rate.

[0066] See also Figure 2A This is the structural appearance diagram of the first embodiment of the new ultrasonic water meter. Figure 2B This is a cross-sectional diagram of the first embodiment of the new ultrasonic water meter from the water inlet to the water outlet, Figure 2C This is a longitudinal cross-sectional diagram of the first embodiment of the new ultrasonic water meter from the water inlet to the water outlet, and Figure 1 , and refer to it repeatedly Figures 2A to 2C. The ultrasonic water meter 100 includes a tube body 100A, a transmitting probe 1, a receiving probe 2, a first reflector 3 and a second reflector 4, and a first through hole H1 and a second through hole H2 are formed on the tube body 100A, which pass through from the outer surface of the tube body 100A to the inner surface. A reduced diameter portion 100B is included between the first through hole H1 and the second through hole H2, and the reduced diameter portion 100B is used to reduce the cross-sectional area of ​​the tube body to increase the flow rate by reducing the cross-sectional area. Among them, the reduction in the cross-sectional area of ​​the tube body refers to the cross-sectional area of ​​the reduced diameter portion 100B being smaller than the cross-sectional area of ​​the water inlet 100-1 and the water outlet 100-2, and is not limited to the cross-sectional area shape of the reduced diameter portion 100B (for example, but not limited to circular, elliptical, rectangular, etc.). Preferably, the reduced diameter portion 100B can mainly form the fluid F into a substantially flat plate flow, thereby increasing the flow rate of the fluid F.

[0067] The transmitting probe 1 is disposed at the first through hole H1, and the transmitting probe 1 includes a body 12 and a transmitting end 14. The body 12 can be correspondingly combined with the first through hole H1, and the transmitting end 14 is located inside the tube body 100A through the combination of the body 12 and the first through hole H1, so that the transmitting end 14 can transmit ultrasonic waves toward the tube body 100A. Among them, the appearance of the body 12 can correspond to the first through hole H1, so that it can be just fixed in the first through hole H1, and elastic waterproof parts such as but not limited to waterproof rings P and waterproof rings can be used to prevent the fluid F from leaking out of the first through hole H1. Alternatively, the body 12 can also include threads and be fixed by screwing into the first through hole H1. Therefore, all combinations that can be used for fixing and waterproofing should be included in the scope of this embodiment.

[0068] It is worth mentioning that in one embodiment, the technical term "configuration" appearing in this article may include multiple implementations. For example, but not limited to, implementations such as plug-in, screw-in fixation, adhesive fixation, and locking. For example, if it is matched with a perforated fixing method, configuration methods such as plug-in, screw-in fixation, and locking can generally be used. Therefore, the technical term "configuration" appearing in this article does not limit it to only include one specific implementation method. It can basically be inferred in conjunction with the drawings and the context, as well as the general knowledge of those skilled in the art, and various types of "configuration" methods will not be described one by one here.

[0069] The receiving probe 2 is disposed in the second through-hole H2, and similar to the combination of the transmitting probe 1 and the first through-hole H1, the receiving probe 2 can fix the main body 22 to the tube body 100A by the above-mentioned fixing method. Moreover, the receiving end 24 is located inside the tube body 100A through the combination of the main body 22 and the second through-hole H2. The first reflector 3 can be disposed in the tube body 100A, relative to one end of the transmitting probe 1, so that the transmitting probe 1 and the first reflector 3 are respectively disposed at two opposite ends in the tube body 100A. Among them, the first reflector 3 can be configured in a variety of ways. One way is to attach the first reflector 3 to the inner surface of the tube body 100A by attaching it to provide the function of reflecting ultrasonic waves. Another way is like Figures 2A to 2C As shown, it is similar to the combination of the transmitting probe 1 and the first through-hole H1. That is, the first reflector 3 can fix the main body 32 to the tube 100A by the above-mentioned fixing method. In addition, the reflector 34 is located inside the tube 100A through the combination of the main body 32 and the third through-hole H3. Among them, the reflector 34 and the main body 32 can be made of the same material and are an integrally formed structure, and the material is preferably a material with good reflective ability such as metal (for example but not limited to, such as titanium alloy, stainless steel). Alternatively, the reflector 34 and the main body 32 can also be as Figure 2A A separate structure is shown and is not intended to be limiting.

[0070] On the other hand, the first reflector 3 provides a first normal line N1 and is used to reflect the ultrasonic wave emitted by the transmitting probe 1. The second reflector 4 can be disposed in the tube 100A, relative to one end of the receiving probe 2, so that the receiving probe 2 and the second reflector 4 are respectively disposed at two opposite ends of the tube 100A. Moreover, the second reflector 4 is similar to the first reflector 3, and it can also be attached to the inner surface of the tube 100A by attaching, or like Figures 2A to 2C The method of combining the transmitting probe 1 and the first through hole H1 is similar to that shown. That is, the second reflector 4 can fix the main body 42 to the tube 100A by the above-mentioned fixing method. In addition, the reflector 44 is located inside the tube 100A through the combination of the main body 42 and the fourth through hole H4. On the other hand, the second reflector 4 provides a second normal line N2 and is used to reflect the ultrasonic wave to the receiving probe 2. The reflector 44 and the main body 42 can also be made of the same material and be an integrally formed structure, and the material is preferably a material with good reflective ability such as metal. Alternatively, the reflector 44 and the main body 42 can also be as Figure 2A A separate structure is shown and is not intended to be limiting.

[0071] Therefore, comprehensive Figures 2A to 2CAs described above, the transmitting probe 1 and the receiving probe 2 are arranged on the same side of the longitudinal section of the tube body 100A, and the first reflecting member 3 and the second reflecting member 4 are arranged on the same side of the longitudinal section of the tube body 100A, and the transmitting probe 1 and the first reflecting member 3 are arranged on different sides of the tube body 100A (i.e., respectively arranged on the upper wall and the lower wall of the longitudinal section of the tube body 100A). In addition, the transmitting probe 1 and the second reflecting member 4 are arranged on the corresponding two sides of the first normal line N1, and the receiving probe 2 and the first reflecting member 3 are arranged on the corresponding two sides of the second normal line N2. Therefore, as Figures 2A to 2C The transmission path L of the ultrasonic wave shown is the transmitting probe 1, the first reflecting element 3, and is reflected to the second reflecting element 4 by the reflection principle of the first normal line N1. Then, the ultrasonic wave is reflected to the receiving probe 2 by the reflection principle of the second normal line N2. In this way, the ultrasonic water meter 100 can estimate the flow rate by the time when the transmitting probe 1 transmits the ultrasonic wave to the time when the receiving probe 2 receives the ultrasonic wave (i.e., the time difference between the two). Therefore, Figures 2A to 2C It can be seen from the ultrasonic transmission path L shown that the ultrasonic wave configuration type of the ultrasonic water meter 100 is U-shaped.

[0072] Furthermore, since the ultrasonic water meter 100 of the present invention includes the reduced diameter portion 100B, the fluid F (in Figure 2B The flow rate of the fluid F can be measured even at a low flow rate. Figures 2A to 2C As shown, the first reflector 3 and the second reflector 4 are not disposed in the reduced diameter portion 100B. The transmitting probe 1 and the first reflector 3 are disposed between the water inlet 100-1 and the reduced diameter portion 100B, and the receiving probe 2 and the second reflector 4 are disposed between the water outlet 100-2 and the reduced diameter portion 100B.

[0073] Again, please refer to Figures 2A to 2C , the ultrasonic water meter 100 may selectively include a guide member 5, and the tube body 100A further forms a fourth through hole H4 that passes from the outer surface of the tube body 100A to the inner surface. The fourth through hole H4 is formed between the water inlet 100-1 and the first through hole H1, and the guide member 5 is arranged at the fourth through hole H4. The guide member 5 extends into the tube body 100A to increase the flow rate by guiding the fluid F. Specifically, the guide member 5 includes a main body 52 and a guide portion 54, and the guide member 5 is arranged at the fourth through hole H4. Among them, the main body 52 and the guide portion 54 can be an integrally formed structure, or can be a separate structure and form the guide member 5 by assembly. Similar to the combination of the transmitting probe 1 and the first through hole H1, the guide member 5 can fix the main body 52 to the tube body 100A by the above-mentioned fixing method. In addition, the guide portion 54 is located inside the tube body 100A through the combination of the main body 52 and the fourth through hole H4. The guide portion 54 may be, for example but not limited to, in the shape of a long strip, and the cross section may be a curved surface (eg Figure 2B-2C The guide portion 54 may be preferably disposed in the tube body 100A, extending from the end 52A of the body 52 to the other end 52B relative to the body 52. Figure 2B-2C In the figure, the guide portion 54 is a structure that is perpendicular to the longitudinal section of the tube body 100A.

[0074] Specifically, the guide portion 54 can be used to increase the flow velocity of the fluid F by guiding the flow, thereby improving the range ratio. In addition, when the fourth perforation H4 is formed between the water inlet 100-1 and the first perforation H1, the width W1 of the guide portion 54 is preferably greater than or equal to the width W2 of the widest of the transmitting probe 1, the receiving probe 2, the first reflector 3 and the second reflector 4. However, if the fourth perforation H4 is formed between the first perforation H1 and the second perforation H2, it is not limited thereto. Further, since the fluid F is usually not in a vacuum state in the pipeline 200 when it flows in the pipeline 200, bubbles are generally generated in the fluid F. Therefore, if bubbles flow through the transmission path L of the ultrasonic wave, the accuracy of the ultrasonic wave reflection will be affected. In particular, after the ultrasonic wave is reflected, its energy will gradually weaken (for example, but not limited to, reflected by the second reflector 4 to the receiving probe 2). Therefore, if the ultrasonic wave is affected by bubbles after being reflected, the accuracy of the ultrasonic wave reflection is poor, and even the ultrasonic wave cannot be smoothly reflected to the receiving probe 2, resulting in a situation where no data can be measured. Therefore, the bubbles in the fluid F can be guided to the two sides inside the tube body 100A through the obstruction of the guide portion 54, thereby preventing the bubbles from flowing through the ultrasonic transmission path L.

[0075] See also Figure 3A It is a longitudinal cross-sectional diagram from the water inlet to the water outlet of the first embodiment of the first deformation structure of the new ultrasonic water meter, Figure 3B It is a longitudinal cross-sectional diagram from the water inlet to the water outlet of the first embodiment of the second deformation structure of the new ultrasonic water meter, Figure 3C This is a longitudinal cross-sectional diagram of the first embodiment of the third variant structure of the new ultrasonic water meter from the water inlet to the water outlet, and Figures 2A to 2C , and refer to it repeatedly Figure 3A-3B .in, Figures 3A to 3C The schematic diagram is shown in Figure 1 (some components are not shown). The more specific structure can be found in the Figures 2A to 2C And infer. Figure 3A The configuration positions of the transmitting probe 1, the receiving probe 2, the first reflecting member 3 and the second reflecting member 4 are the same as Figures 2A to 2C .and, Figure 3A and Figures 2A to 2CThe difference is that the guide portion 54 is a structure that is not perpendicular to the longitudinal section of the tube body 100A, and the angle A between the guide portion 54 and the body 52 is less than 90 degrees. In addition, the first reflector 3 is formed at one end of the guide portion 5 relative to the transmitting probe 1, and the guide portion 54 of the guide portion 5 can be formed integrally with the first reflector 3. Under this condition, the tube body 100A may not include the third through hole H3 for configuring the body 32 of the reflector 34, and the first reflector 3 can be naturally configured at a position where the ultrasonic wave can be reflected to the second reflector 4 through the fourth through hole H4 of the guide portion 5. In this way, the number of openings in the tube body 100A can be reduced, reducing the process cost.

[0076] Figure 3B and Figures 2A to 2C The difference is that the first through hole H1 and the second through hole H2 are not vertically formed in the tube body 100A, but are inclined toward the direction of the reduced diameter portion 100B. Figures 2A to 2C , but the transmitting probe 1 and the receiving probe 2 are obliquely inserted into the first through hole H1 and the second through hole H2 respectively. In addition, the first reflector 3 and the second reflector 4 are arranged in the reduced diameter portion 100B (that is, the distance between the first reflector 3 and the second reflector 4 is less than the distance between the first through hole H1 and the second through hole H2), and the flow guide 5 is arranged in the fourth through hole H4 between the first through hole H1 and the second through hole H2. The flow guide 54 is a structure that is not perpendicular to the longitudinal section of the tube body 100A, and the angle A between the flow guide 54 and the body 52 is greater than or equal to 90 degrees. In addition, the first reflector 3 is formed at one end of the flow guide 5 relative to the transmitting probe 1, and the flow guide 54 of the flow guide 5 can be integrally formed with the first reflector 3.

[0077] Under this condition, the tube body 100A may not include the third through hole H3 for configuring the main body 32 of the reflector 34, and the first reflector 3 may be configured at the fourth through hole H4 through the guide member 5 and naturally configured at a position where the ultrasonic wave can be reflected to the second reflector 4. In this way, the number of openings of the tube body 100A can be reduced, and the process cost can be reduced. In addition, since the guide member 5 blocks the transmission path L, the guide portion 54 of the guide member 5 may include an opening 542 so that the ultrasonic wave can pass through the opening 542 and be transmitted to the first reflector 3. Among them, the guide portion 54 can have a single opening 542 in response to the transmission of the ultrasonic wave. In addition, the guide portion 54 can also use a metal mesh with a higher density (for example, but not limited to, wire mesh, etc.), which can also have an opening 542 so that the ultrasonic wave can be transmitted smoothly. It is worth mentioning that in one embodiment, the fourth through hole H4 is not limited to being configured only on the same side as the first through hole H1, and it can also be configured on the same side as the third through hole H3. Therefore, the first reflector 3 can be formed at one end of the guide member 5 opposite to the transmitting probe 1, or can be formed at one end of the guide member 5 that is the same as the receiving probe 2, mainly depending on whether the guide portion 54 is integrally formed with the first reflector 3.

[0078] Figure 3C and Figures 2A to 2C The difference is that the first through hole H1 and the second through hole H2 are opened in an inclined direction opposite to the direction of the reduced diameter portion 100B. Figures 2A to 2C , but the transmitting probe 1 and the receiving probe 2 are obliquely inserted into the first through hole H1 and the second through hole H2 respectively. In addition, the main bodies 32 and 42 of the first reflector 3 and the second reflector 4 further include adjustment devices 322 and 422 respectively. The reflective portion 34 and 44 are disposed on one side of the main body 32 and 42 and connected to the adjustment devices 322 and 422. The adjustment devices 322 and 422 are used to adjust the reflective portion 34 and 44 to change the position of the first normal line of the reflective portion 34 and the position of the second normal line of the reflective portion 44.

[0079] Specifically, tolerances may be generated during the manufacturing process of the ultrasonic water meter 100. Therefore, a normal displacement may occur after reassembly, resulting in the inability to smoothly reflect the ultrasonic wave to the receiving probe 2 during actual operation. Therefore, the first reflector 3 and the second reflector 4 can adjust the reflective parts 34 and 44 to the correct position through the adjustment devices 322 and 422 to avoid the influence of tolerances and the situation where the parameters cannot be measured. It is worth mentioning that in one embodiment, both the first reflector 3 and the second reflector 4 do not necessarily need to include the adjustment devices 322 and 422, which can be selectively installed according to actual needs (that is, they can be installed like Figures 2A to 3B Not installed or one or both installed).

[0080] On the other hand, Figure 3C and Figures 2A to 2C Another difference is that the first reflector 3 and the second reflector 4 form a concave parabolic structure, and the distance between the first reflector 3 and the second reflector 4 is greater than the distance between the first through hole H1 and the second through hole H2. Since the reflective portion 34 of the first reflector 3 and the reflective portion 44 of the second reflector 4 form a concave parabolic structure, the reflection angle of the first reflector 3 and the second reflector 4 can be reduced, so that even if the distance between the first reflector 3 and the second reflector 4 is greater than the distance between the first through hole H1 and the second through hole H2, the ultrasonic wave can still be smoothly reflected to the receiving probe 2.

[0081] In summary Figures 2A to 3C As shown, the configuration positions of the transmitting probe 1 and the receiving probe 2 of the ultrasonic water meter 100 of the utility model are mainly on the opposite sides of the reduced diameter portion 100B and are not configured in the reduced diameter portion 100B. On the contrary, the configuration positions of the first reflector 3 and the second reflector 4 are not limited, and even one of them can be configured in the reduced diameter portion 100B and the other can be configured outside the reduced diameter portion 100B. It is worth mentioning that in one embodiment, Figures 2A to 2C The characteristics of 3A to 3C can be used in conjunction with each other. For example but not limited to, Figure 3B The structure uses a vertically inserted guide 54 (i.e., using Figures 2A to 2C Alternatively, the first reflector 3 includes an adjustment device 322 and a reflector 34 of a concave parabola structure, and the second reflector 4 is configured as Figures 2A to 2C The most basic structure (the second reflector 4 can also be configured as Figure 3C Since there are many alternative implementations, and they can be Figures 2A to 2C It can be inferred from the characteristics of 3A to 3C, so they will not be described here one by one.

[0082] See also Figure 4A This is the structural appearance diagram of the second embodiment of the new ultrasonic water meter. Figure 4B This is a cross-sectional diagram of the second embodiment of the new ultrasonic water meter from the water inlet to the water outlet. Figure 4C This is a longitudinal cross-sectional view of the second embodiment of the new ultrasonic water meter from the water inlet to the water outlet, and is again referred to in conjunction with Figures 1 to 3C , and refer to it repeatedly Figures 2A to 2C , 4A~4C. Figures 4A to 4C and Figures 2A to 2CThe difference is that the transmitting probe 1 and the second reflector 4 are arranged on the same side of the longitudinal section of the tube 100A, and the receiving probe 2 and the first reflector 3 are arranged on the same side of the longitudinal section of the tube 100A, and the transmitting probe 1 and the first reflector 3 are arranged on different sides of the tube 100A (i.e., respectively arranged on the upper wall and the lower wall of the longitudinal section of the tube 100A). Similarly, the transmitting probe 1 and the second reflector 4 are arranged on the corresponding two sides of the first normal line N1, and the receiving probe 2 and the first reflector 3 are arranged on the corresponding two sides of the second normal line N2.

[0083] Therefore, the transmission path L of the ultrasonic wave is similar to Figures 2A to 2C The ultrasonic wave is reflected to the second reflector 4 by the reflection principle of the first normal line N1, and then reflected to the receiving probe 2 by the reflection principle of the second normal line N2. The difference is that the ultrasonic wave configuration type of the ultrasonic water meter 100 is Z-type, and the two third perforations H3 are inclined toward the direction of the reduced diameter portion 100B. Therefore, the path length of the Z-type reflection path is 1D+√2D+1D, where D is the diameter of the tube body 100A. It is worth mentioning that in one embodiment, Figures 4A to 4C Unspecified structural features and characteristics are similar to Figures 2A to 2C , or by Figures 2A to 2C The structure of can be inferred and will not be elaborated here.

[0084] See also Figure 5A It is a longitudinal cross-sectional diagram from the water inlet to the water outlet of the second embodiment of the first deformation structure of the new ultrasonic water meter, Figure 5B It is a longitudinal cross-sectional diagram from the water inlet to the water outlet of the second embodiment of the second deformation structure of the new ultrasonic water meter, Figure 5C This is a longitudinal cross-sectional view of the second embodiment of the third variant structure of the new ultrasonic water meter from the water inlet to the water outlet, and again in conjunction with Figures 1 to 4C And refer to it repeatedly Figures 3A to 3C , 5A~5. Among them, Figures 5A to 5C The schematic diagram is shown in Figure 1 (some components are not shown). The more specific structure can be found in the Figures 4A to 4C And infer. Figures 5A to 5C The structural characteristics and features are similar to Figures 3A to 3C , or by Figures 3A to 3C The structure of the present invention can be inferred from the above, and the only difference is that the transmitting probe 1 and the second reflecting member 4 are arranged on the same side of the longitudinal section of the tube body 100A, and the receiving probe 2 and the first reflecting member 3 are arranged on the same side of the longitudinal section of the tube body 100A, and the transmitting probe 1 and the first reflecting member 3 are arranged on different sides of the tube body 100A (i.e., respectively arranged on the upper wall and the lower wall of the longitudinal section of the tube body 100A). In order to avoid repeating similar contents, they will not be described in detail.

[0085] See also Fig. 6AThis is a longitudinal cross-sectional diagram of the third embodiment of the new ultrasonic water meter from the water inlet to the water outlet, Figure 6B This is a longitudinal cross-sectional view of the third embodiment of the new ultrasonic water meter deformation structure from the water inlet to the water outlet, and again in conjunction with Figures 1 to 5C , and refer to it repeatedly Figures 5A to 5C , 6A~6B. Among them, Figures 6A-6B The schematic diagram is shown in Figure 1 (some components are not shown). The more specific structure can be found in the Figures 4A to 4C And infer. Figures 6A-6B and Figures 5A to 5C Similarly, the transmitting probe 1 and the second reflector 4 are arranged on the same side of the longitudinal section of the tube body 100A, and the receiving probe 2 and the first reflector 3 are arranged on the same side of the longitudinal section of the tube body 100A, and the transmitting probe 1 and the first reflector 3 are arranged on different sides of the tube body 100A (i.e., respectively arranged on the upper wall and lower wall of the longitudinal section of the tube body 100A).

[0086] Figures 6A-6B and Figures 5A to 5C The difference is that the first through hole H1 and the second through hole H2 are not vertically formed in the tube body 100A, but are inclined toward the direction of the reduced diameter portion 100B. Figures 2A to 2C , but the transmitting probe 1 and the receiving probe 2 are obliquely inserted into the first perforation H1 and the second perforation H2 respectively. On the other hand, the two third perforations H3 are respectively opened in the reduced diameter portion 100B of the tube body 100A, at substantially opposite positions (i.e., the path of the ultrasonic wave reflected from the first reflector 3 to the second reflector 4 is substantially perpendicular to the tube body 100A), and the ultrasonic configuration type of the ultrasonic water meter 100 is N-type. Therefore, the path length of the N-type reflection path is 2D+1+√2D, and its path has an additional Z-type √2D-1D. Therefore, the transmission and reception path time can be increased, and the length from upstream to downstream can be shortened to reduce the pressure loss under the same pipe diameter.

[0087] exist Fig. 6A The configuration of the guide member 5 is similar to Figure 2A , I will not go into details here. Figure 6B In the embodiment, the configuration of the guide member 5 is similar to Figure 3B (The guide part 54 includes an opening 542), and the guide part 54 is an integrally formed structure with the first reflector 3 and the second reflector 4. Specifically, the first reflector 3 is formed in the guide part 54 of the guide part 5, which is the same as one end of the receiving probe 2, and the second reflector 4 is formed in the guide part 54 of the guide part 5, which is the same as one end of the transmitting probe 1. In addition, the first reflector 3, the second reflector 4 and the guide part 5 are integrally formed. In this way, the configuration of the first reflector 3, the second reflector 4 and the guide part 5 can be completed through a single perforation.

[0088] See also Fig. 7A This is a schematic longitudinal section from the water inlet to the water outlet of the fourth embodiment of the new ultrasonic water meter. Figure 7B This is a schematic longitudinal section from the water inlet to the water outlet of the fourth embodiment of the first deformation structure of the new ultrasonic water meter, Figure 7C This is a longitudinal cross-sectional view of the fourth embodiment of the second deformation structure of the new ultrasonic water meter from the water inlet to the water outlet, and again in conjunction with Figures 1 to 6B , and refer to it repeatedly Figures 2A to 3C , 7A~7B. Among them, Figures 7A to 7C The schematic diagram is shown in Figure 1 (some components are not shown). The more specific structure can be found in the Figures 2A to 2C And infer. Fig. 7A and Figure 2C are similar, and the difference is that Fig. 7A Only a single set of reflectors 6 is included, and the reflectors 6 are disposed at the reduced diameter portion 100B. The reflectors 6 are used to reflect the ultrasonic waves emitted by the transmitting probe 1 to the receiving probe 2, and the transmitting probe 1 and the receiving probe 2 are disposed on the corresponding two sides of the normal line N of the reflectors 6. It is worth mentioning that, in one embodiment, Fig. 7A Unspecified structural features and characteristics are similar to Figure 2C , or by Figure 2C The structure of can be inferred and will not be elaborated here.

[0089] Figure 7B and Figure 3B are similar, and the difference is that Figure 7B Only a single set of reflectors 6 is included, and the reflectors 6 are disposed at the reduced diameter portion 100B. The reflectors 6 are used to reflect the ultrasonic waves emitted by the transmitting probe 1 to the receiving probe 2, and the transmitting probe 1 and the receiving probe 2 are disposed on the corresponding sides of the normal line N of the reflector 6. In addition, the guide 5 is disposed at the fourth through hole H4 between the first through hole H1 and the second through hole H2, and the guide portion 54 of the guide 5 may include an opening 542 so that the ultrasonic waves can pass through the opening 542 to be transmitted to the reflector 6. It is worth mentioning that in one embodiment, Figure 7B Unspecified structural features and characteristics are similar to Figure 3B , or by Figure 3B The structure of can be inferred and will not be elaborated here.

[0090] Figure 7C and Figure 2B are similar, and the difference is that Figure 7BOnly a single set of reflectors 6 is included, and the reflectors 6 are not arranged in the reduced diameter portion 100B, but are arranged between the reduced diameter portion 100B and the water inlet 100-1 in the same manner as the transmitting probe 1. In addition, the third through hole H3 is opened obliquely toward the reduced diameter portion 100B, so that the reflector 6 can be obliquely inserted into the third through hole H3. The reflector 6 is used to reflect the ultrasonic waves emitted by the transmitting probe 1 to the receiving probe 2, and the transmitting probe 1 and the receiving probe 2 are arranged on the corresponding two sides of the normal line N of the reflector 6. It is worth mentioning that in one embodiment, Figure 7C Unspecified structural features and characteristics are similar to Figure 2C , or by Figure 2C The structure of can be inferred and will not be elaborated here.

[0091] Apart from Figures 7A to 7C In addition to the structure of Figure 3C That is, the reflector 6 may include: Figure 3C The adjusting device is connected to the reflecting portion of the reflecting member 6 so as to change the position of the normal line N of the reflecting portion by adjusting the reflecting portion. In addition, the reflecting portion of the reflecting member 6 may also be Figure 3C A concave parabolic structure is formed to reduce the reflection angle of the reflector 6. Figures 7A to 7C The embodiment of the present invention uses only a single set of reflectors 6, so compared with Figures 2A to 6B The ultrasonic water meter 100 (needs to be reflected twice, and the signal will be attenuated each time) has a simpler structure and more stable signal reception.

[0092] The above description is only a detailed description and drawings of the preferred specific embodiments of the present invention, but the features of the present invention are not limited thereto and are not intended to limit the present invention. All scopes of the present invention shall be subject to the scope of the patent application. All embodiments that conform to the spirit of the scope of the patent application of the present invention and similar variations thereof shall be included in the scope of the present invention. Any person familiar with the art can easily think of changes or modifications within the field of the present invention, which can be covered by the following patent scope of the present invention.

Claims

1. An ultrasonic water meter connected in series with a pipeline to measure a flow rate of a fluid flowing through the pipeline, characterized in that: The ultrasonic water meter includes: A pipe body is serially connected to the two ends of the pipeline to form a water inlet and a water outlet respectively, and a first through hole and a second through hole are formed in the pipe body, wherein a diameter reduction portion is included between the first through hole and the second through hole, and the diameter reduction portion is used to reduce a cross-sectional area of ​​the pipe body to increase the flow rate by reducing the cross-sectional area, and a third through hole is also formed in the pipe body; A transmitting probe, disposed at the first through hole and used for transmitting an ultrasonic wave toward the tube body; a receiving probe, disposed at the second through hole; and a reflector, used for reflecting the ultrasonic wave emitted by the transmitting probe to the receiving probe, and the transmitting probe and the receiving probe are arranged on two corresponding sides of a normal line of the reflector, and the reflector is arranged at the third through hole; The ultrasonic water meter estimates the flow rate according to a time difference between the emission and reception of the ultrasonic wave.

2. The ultrasonic water meter according to claim 1, characterized in that: The third through hole is formed in the reduced diameter portion, the transmitting probe is arranged between the water inlet and the reduced diameter portion, and the receiving probe is arranged between the water outlet and the reduced diameter portion.

3. The ultrasonic water meter according to claim 1, further comprising: A flow guide is formed in the tube body with a fourth through hole, and the flow guide is disposed in the fourth through hole and extends into the tube body to increase the flow rate by guiding the fluid.

4. The ultrasonic water meter according to claim 3, characterized in that: The ultrasonic wave is transmitted from the transmitting probe to the receiving probe through a transmission path, and the fourth through hole is formed between the water inlet and the first through hole, so as to inhibit bubbles in the fluid from blocking the transmission path through the guide member.

5. The ultrasonic water meter according to claim 3, characterized in that: The ultrasonic wave is transmitted from the transmitting probe to the receiving probe through a transmission path, and the fourth perforation is formed between the first perforation and the second perforation; the flow guide comprises an opening, and the ultrasonic wave is transmitted to the reflecting member through the opening.

6. The ultrasonic water meter according to claim 4 or 5, characterized in that: The reflector is formed at one end of the guide member opposite to the transmitting probe and is integrally formed with the guide member.

7. The ultrasonic water meter according to claim 1, characterized in that: The reflector forms a concave parabolic structure to reduce a reflection angle of the reflector.

8. The ultrasonic water meter according to claim 1, characterized in that: The reflector comprises: a body including an adjustment device; and A reflective portion, disposed on one side of the body and providing the normal line; The adjusting device is used to adjust the reflecting part to change the position of the normal line.

9. An ultrasonic water meter connected in series with a pipeline to measure a flow rate of a fluid flowing through the pipeline, characterized in that: The ultrasonic water meter includes: A pipe body is serially connected to the two ends of the pipeline to form a water inlet and a water outlet respectively, and a first through hole and a second through hole are formed in the pipe body to penetrate, wherein a reduced diameter portion is included between the first through hole and the second through hole, and the reduced diameter portion is used to reduce a cross-sectional area of ​​the pipe body, so as to increase the flow rate by reducing the cross-sectional area; A transmitting probe, disposed at the first through hole and used for transmitting an ultrasonic wave toward the tube body; a receiving probe, disposed at the second through hole; and A first reflecting element provides a first normal line and is used to reflect the ultrasonic wave emitted by the transmitting probe; a second reflecting element, providing a second normal line and used for reflecting the ultrasonic wave to the receiving probe; The transmitting probe and the second reflecting element are arranged on two corresponding sides of the first normal line, and the receiving probe and the first reflecting element are arranged on two corresponding sides of the second normal line; the ultrasonic water meter estimates the flow rate according to a time difference from the ultrasonic emission to the reception.

10. The ultrasonic water meter according to claim 9, characterized in that: Two third through holes are formed in the tube body, and the first reflective component and the second reflective component are respectively disposed in the third through holes.

11. The ultrasonic water meter according to claim 9, characterized in that: The first reflecting member and the second reflecting member are both arranged at the reduced diameter portion, the transmitting probe is arranged between the water inlet and the reduced diameter portion, and the receiving probe is arranged between the water outlet and the reduced diameter portion.

12. The ultrasonic water meter according to claim 9, characterized in that: The first reflector and the second reflector are not arranged at the reduced diameter portion, and the transmitting probe and the first reflector are arranged between the water inlet and the reduced diameter portion, and the receiving probe and the second reflector are arranged between the water outlet and the reduced diameter portion.

13. The ultrasonic water meter according to claim 11 or 12, further comprising: A flow guide is formed in the tube body with a fourth through hole, and the flow guide is disposed in the fourth through hole and extends into the tube body to increase the flow rate by guiding the fluid.

14. The ultrasonic water meter according to claim 13, characterized in that: The ultrasonic wave is transmitted from the transmitting probe to the receiving probe through a transmission path, and the fourth through hole is formed between the water inlet and the first through hole, so as to inhibit bubbles in the fluid from blocking the transmission path through the guide member.

15. The ultrasonic water meter according to claim 13, characterized in that: The ultrasonic wave is transmitted from the transmitting probe to the receiving probe through a transmission path, and the fourth perforation is formed between the first perforation and the second perforation; the flow guide includes an opening, and the ultrasonic wave is transmitted to the first reflecting member through the opening.

16. The ultrasonic water meter according to claim 14 or 15, characterized in that: The first reflector is formed at one end of the guide member opposite to the transmitting probe, or at one end of the guide member identical to the receiving probe, and the first reflector is formed integrally with the guide member.

17. The ultrasonic water meter according to claim 16, characterized in that: The first reflector is formed at one end of the guide member which is the same as the receiving probe, the second reflector is formed at one end of the guide member opposite to the transmitting probe, and the first reflector, the second reflector and the guide member are integrally formed.

18. The ultrasonic water meter according to claim 9, characterized in that: The first reflective element or the second reflective element forms a concave parabolic structure to reduce a reflection angle of the first reflective element or the second reflective element.

19. The ultrasonic water meter according to claim 9, characterized in that: The first reflector or the second reflector comprises: a body including an adjustment device; and a reflective portion, disposed on one side of the main body and providing the first normal line or the second normal line; The adjusting device is used to adjust the reflecting portion to change the position of the first normal line or the second normal line.

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