Flowmeter device with positioning function

Abstract

The utility model relates to flowmeter equipment with a positioning function. The flowmeter equipment comprises a throttling device, a positioning clamping part and a valve group, the throttling device is provided with two pressure guide pipes; the valve group and the throttling device are respectively arranged at the two ends of the two pressure guide pipes; the two pressure guide pipes are provided with stop valves; the positioning clamping part comprises a clamp and an adjusting rod; the clamp is arranged on the outer sides of the two pressure guiding pipes in a sleeving mode and located between the stop valve and the throttling device. A receding groove is formed in the inner side of the clamp and matched with the pressure guiding pipes, one pressure guiding pipe is suitable for being embedded into the receding groove, the adjusting rod and the receding groove are arranged on the two opposite sides of the clamp respectively, the adjusting rod penetrates through the clamp and is movably connected with the clamp, and the adjusting rod can move in the direction towards or away from the side where the receding groove is located. The adjusting rod is suitable for abutting against the other pressure guiding pipe. And by adjusting the adjusting rod, the clamp locks the two pressure guiding pipes, so that the distance between the two pressure guiding pipes is prevented from being increased, and the measurement precision is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flow meters, and in particular to a flow meter device with a positioning function. Background Art

[0002] The flowmeter is a common measuring instrument used to measure the flow of gas, steam or liquid in a pipeline. It is widely used in various fields such as petroleum, chemical industry, water treatment, food and beverage. With the increasing requirements for the accuracy and range of flow measurement, various types of flowmeters suitable for various purposes have been derived. Among them, the differential pressure flowmeter uses the pressure difference generated when the fluid flows through the throttling device to achieve the purpose of flow measurement. In the prior art, in order to improve the convenience of connecting the two pressure-inducing pipes of the flowmeter with the three-valve group at the same time, the two pressure-inducing pipes are generally set to a parallel structure. A two-way flow measurement differential pressure balanced adjustment flowmeter disclosed in the publication number CN208998853U can be referred to. When the two pressure-inducing pipes of the flowmeter are in the long-term working process, the liquid flowing through the pressure-inducing pipes will continuously impact the pressure-inducing pipes, which is easy to cause the pressure-inducing pipes to deform and expand outward, causing the distance between the two pressure-inducing pipes to gradually increase. This phenomenon will affect the firmness of the connection between the pressure-inducing pipe and the three-valve group. Summary of the invention

[0003] In view of this, the present application proposes a flow meter device with a positioning function.

[0004] According to one aspect of the present application, a flow meter device with a positioning function is provided, characterized in that it comprises: a throttling device, a positioning clamping portion and a valve group;

[0005] The throttling device is provided with two pressure-inducing pipes; the valve group and the throttling device are respectively arranged at both ends of the two pressure-inducing pipes; both pressure-inducing pipes are provided with stop valves;

[0006] The positioning clamping part includes: a clamp and an adjusting rod; the clamp is sleeved on the outside of the two pressure-inducing pipes, and the clamp is located between the stop valve and the throttling device;

[0007] A clearance groove is provided on the inner side of the clamp, and the clearance groove matches the pressure-leading tube. One of the pressure-leading tubes is suitable for being embedded in the clearance groove. The adjusting rod and the clearance groove are respectively arranged on the opposite sides of the clamp. The adjusting rod passes through the clamp and is movably connected to the clamp. The adjusting rod can move in a direction toward or away from the side where the clearance groove is located. The adjusting rod is suitable for abutting against the other pressure-leading tube.

[0008] In a possible implementation, the adjusting rod is a screw rod;

[0009] The clamp is provided with a screw hole, the adjusting rod matches the screw hole, and the adjusting rod passes through the screw hole and penetrates the clamp.

[0010] In a possible implementation, the main body of the clamp is a C-shaped structure.

[0011] In a possible implementation, the adjustment rod is provided with a hand-held portion;

[0012] The hand-held part is arranged at one end of the adjusting rod away from the pressure-inducing tube.

[0013] In a possible implementation, the main body of the handheld part is a hexagonal columnar structure.

[0014] In a possible implementation, the adjustment rod is provided with an anti-wear layer;

[0015] The anti-wear layer is arranged at one end of the regulating rod contacting the pressure-guiding pipe.

[0016] In a possible implementation, the throttling device includes: two mounting members and a throttling plate;

[0017] The throttle plate is arranged between the two mounting members;

[0018] The two pressure-inducing pipes are respectively arranged on the side walls of the two mounting parts, and the two pressure-inducing pipes penetrate the side walls of the mounting parts.

[0019] In a possible implementation, a fixing groove is provided on one side of the two mounting members contacting the throttle plate;

[0020] The fixing groove matches the throttle plate.

[0021] In a possible implementation, the valve group is a three-valve group.

[0022] Beneficial effects: The clamp sleeve of the positioning clamping part is arranged on the outside of the two pressure-leading tubes, and is suitable for limiting the position of the two pressure-leading tubes. The adjusting rod of the positioning clamping part can adjust the opening size of the clamp, so that it can adapt to two pressure-leading tubes of different sizes and different distances. By adjusting the adjusting rod, the clamp can lock and clamp the two pressure-leading tubes, which can effectively avoid deformation of the pressure-leading tubes due to long-term work, avoid the distance between the two pressure-leading tubes from becoming larger, and improve the measurement accuracy.

[0023] Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1 A main structural diagram showing a flow meter device with a positioning function according to an embodiment of the present application;

[0026] Figure 2 A front view of a flow meter device with a positioning function according to an embodiment of the present application is shown;

[0027] Figure 3 A side view showing a flow meter device with a positioning function according to an embodiment of the present application;

[0028] Figure 4 An exploded view of the structure of the throttling device according to an embodiment of the present application is shown;

[0029] Figure 5 Show Figure 4 Side view of

[0030] Figure 6 A main structural diagram of a throttling device according to an embodiment of the present application is shown;

[0031] Figure 7 Show Figure 6 Side view of. DETAILED DESCRIPTION

[0032] Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0033] Among them, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model or simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0036] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present application can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present application.

[0037] Figure 1 A main structural diagram showing a flow meter device with a positioning function according to an embodiment of the present application; Figure 2 A front view of a flow meter device with a positioning function according to an embodiment of the present application is shown; Figure 3 A side view showing a flow meter device with a positioning function according to an embodiment of the present application; Figure 4 An exploded view of the structure of the throttling device 100 according to an embodiment of the present application is shown; Figure 5 Show Figure 4 Side view of Figure 6 A main structural diagram of a throttling device 100 according to an embodiment of the present application is shown; Figure 7 Show Figure 6 Side view of the Figure 1 As shown, the flow meter device with positioning function comprises: a throttling device 100, a positioning clamping part 500 and a valve group 400; the throttling device 100 is provided with two pressure-inducing pipes 200; the valve group 400 and the throttling device 100 are respectively arranged at both ends of the two pressure-inducing pipes 200; the two pressure-inducing pipes 200 are both provided with stop valves 300; the positioning clamping part 500 comprises: a clamp 510 and an adjusting rod 520; the clamp 510 is sleeved on the outside of the two pressure-inducing pipes 200, and the clamp 510 is located at between the stop valve 300 and the throttling device 100; a clearance groove is provided on the inner side of the clamp 510, and the clearance groove matches the pressure-leading pipe 200, one of the pressure-leading pipes 200 is suitable for being embedded in the clearance groove, and the adjusting rod 520 and the clearance groove are respectively arranged on the opposite sides of the clamp 510, the adjusting rod passes through the clamp 510 and is movably connected to the clamp 510, the adjusting rod 520 can move in a direction toward or away from the side where the clearance groove is located, and the adjusting rod 520 is suitable for abutting against the other pressure-leading pipe 200.

[0038] Here, it should be noted that the throttling device 100 is provided with a throttling plate 110, and a plurality of through holes 111 are provided on the surface of the throttling plate 110. After the fluid passes through the throttling plate 110 and is throttled by it, a pressure difference is generated, and a high-pressure area is formed on the upstream side of the throttling plate 110, and a low-pressure area is formed on the downstream side of the throttling plate 110; the two pressure-inducing pipes 200 are respectively connected to the high-pressure area and the low-pressure area of ​​the throttling device 100, and the fluid in the high-pressure area and the fluid in the low-pressure area flow into the two pressure-inducing pipes 200 respectively. Due to the principle that there is a certain relationship between the pressure difference generated when the fluid flows through the throttling plate 110 and the flow rate, the pressure difference of the two pressure-inducing pipes 200 is measured by a differential pressure transmitter, and then the liquid flow rate flowing through the throttling device 100 can be calculated according to the Bernoulli equation. The stop valves 300 on the two pressure-inducing pipes 200 are suitable for controlling the on and off of the pressure-inducing pipes 200 at any time. The clamp 510 of the positioning clamping part 500 is sleeved on the outside of the two pressure-inducing pipes 200, and is suitable for limiting the position of the two pressure-inducing pipes 200. The adjusting rod 520 of the positioning clamping part 500 can adjust the size of the clamping space, so that it can adapt to two pressure-inducing pipes 200 of different sizes and different distances. By adjusting the adjusting rod 520, the clamp 510 locks the two pressure-inducing pipes 200, which can effectively avoid the deformation of the pressure-inducing pipes 200 due to long-term work, and avoid the distance between the two pressure-inducing pipes 200 from becoming larger, thereby improving the measurement accuracy. At the same time, if it is necessary to disassemble and reassemble the whole, under the limiting effect of the positioning clamping part 500, the two pressure-inducing pipes 200 can be kept parallel to each other, which is convenient for the accurate positioning and installation of the throttling device 100, the stop valve 300, and the valve group 400. The overall structure of the present application is simple, the measurement accuracy is high, the operation is simple, and it is not easy to cause safety accidents, which greatly reduces the unsafe factors.

[0039] In a possible implementation, the main body of the clamp 510 is a C-shaped structure. Figure 1 As shown, the clamp 510 is a block structure with a "C" shape, and the clamp 510 is sleeved on the two pressure-inducing tubes 200 through one side of the opening. Furthermore, a semi-cylindrical clearance groove is provided on an inner wall of the clamp 510 that contacts the pressure-inducing tube 200, and the clearance groove matches the outer contour of the pressure-inducing tube 200. When the clamp 510 clamps the two pressure-inducing tubes 200, one of the pressure-inducing tubes 200 can be embedded in the clearance groove, and the other pressure-inducing tube 200 is tightened by the adjustment rod 520; so that the clamp 510 clamps the pressure-inducing tube 200 more closely, avoids the wear of the pressure-inducing tube 200 during the clamping process, and also improves the stability of the clamping, and prevents the clamp 510 from being separated from the pressure-inducing tube 200.

[0040] In a possible implementation, the adjusting rod 520 is a screw rod; the clamp 510 is provided with a screw hole, the screw hole and the clearance groove are respectively arranged on opposite sides of the clamp 510, the adjusting rod 520 matches the screw hole, and the adjusting rod 520 passes through the clamp 510 through the screw hole. Here, it should be noted that by rotating the adjusting rod 520, the degree of one end of the adjusting rod 520 protruding into the inside of the clamp 510 is adjusted, so as to adjust the distance between the adjusting rod 520 and the side of the clamp 510 provided with the clearance groove. Further, by rotating the adjusting rod 520 clockwise, the adjusting rod 520 can be brought close to the side of the clearance groove of the clamp 510, so that the adjusting rod 520 and the clamp 510 clamp the two pressure-inducing tubes 200, and by rotating the adjusting rod 520 counterclockwise, the adjusting rod 520 can be moved away from the side of the clearance groove of the clamp 510, so that the adjusting rod 520 and the clamp 510 loosen the two pressure-inducing tubes 200.

[0041] In a possible implementation, the adjusting rod 520 is provided with a hand-held portion 530; the hand-held portion 530 is disposed at one end of the adjusting rod 520 away from the pressure-inducing pipe 200. Here, it should be noted that the hand-held portion 530 is suitable for a worker to hold the adjusting rod 520 to facilitate the rotation of the adjusting rod 520. Figure 1 As shown, the main body of the hand-held portion 530 is a hexagonal columnar structure.

[0042] In a possible implementation, the adjusting rod 520 is provided with an anti-wear layer; the anti-wear layer is provided at the end of the adjusting rod 520 that contacts the pressure-inducing pipe 200. It should be noted that in order to prevent the adjusting rod 520 from causing impact and wear on the pressure-inducing pipe 200 when contacting the pressure-inducing pipe 200, the anti-wear layer is provided at the end of the adjusting rod 520 that contacts the pressure-inducing pipe 200. The anti-wear layer is further made of rubber.

[0043] In a possible implementation, the throttling device 100 includes: two mounting members 120 and a throttling plate 110; the throttling plate 110 is arranged in the middle of the two mounting members 120; two pressure-inducing pipes 200 are respectively arranged on the side walls of the two mounting members 120, and the two pressure-inducing pipes 200 penetrate the side walls of the mounting members 120. Figure 4 and Figure 6As shown, the main bodies of the two mounting members 120 are both annular structures, the two mounting members 120 are arranged oppositely, the throttle plate 110 is arranged between the two mounting members 120 and clamped by the two mounting members 120, the fluid flows in the order of mounting member 120-throttle plate 110-mounting member 120, and throttles and reduces pressure through the throttle plate 110, and the fluid in the mounting members 120 on both sides of the throttle plate 110 is provided with a pressure difference. The two pressure-inducing pipes 200 respectively penetrate the side walls of the two mounting members 120, so as to ensure that the fluid can smoothly flow from the inside of the mounting member 120 into the two pressure-inducing pipes 200. The two pressure-inducing pipes 200 and the two mounting members 120 are fixed as a whole by welding, so as to improve the connection stability between the pressure-inducing pipes 200 and the mounting member 120, and to prevent the pressure-inducing pipes 200 from being separated due to excessive impact force of the fluid on the pressure-inducing pipes 200 due to excessive flow velocity.

[0044] In a possible implementation, the main body of the throttle plate 110 is a disc structure, the throttle plate 110 is coaxially arranged with the two mounting members 120, and the throttle plate 110 is provided with more than two through holes 111, and the through holes 111 are suitable for the passage of fluid. Further, the throttle plate 110 is provided with seven through holes 111. One of the through holes 111 is arranged at the center of the throttle plate 110, and the other six through holes 111 are arranged around the throttle plate 110.

[0045] In a possible implementation, the two mounting members 120 are provided with a fixing groove 121 on one side contacting the throttle plate 110; the fixing groove 121 matches the throttle plate 110. Figure 4 As shown, the main body of the fixing groove 121 is a circular groove structure. When the throttle plate 110 is installed between the two mounting members 120, the throttle plate 110 can be smoothly embedded in the fixing grooves 121 of the two mounting members 120 on both sides. It should be noted that the setting of the fixing groove 121 can improve the installation convenience and fixing stability of the throttle plate 110, and prevent the fluid with a large impact force from passing through the throttle plate 110 and affecting the fixed position of the throttle plate 110. After the assembly is completed, the two mounting members 120 are fixedly connected by welding to further improve the connection stability of the overall structure.

[0046] In a possible implementation, two stop valves 300 are provided, and the two stop valves 300 are respectively arranged on two pressure-inducing pipes 200, and the stop valve 300 is located between the positioning clamping part 500 and the valve group 400. Here, it should be noted that the setting of the stop valve 300 is suitable for cutting off or connecting the fluid in the pressure-inducing pipe 200 at any time, which is convenient for on-site maintenance and repair of the equipment. Furthermore, the stop valve 300 adopts a high-temperature and high-pressure butt-welding stop valve; the inlet pipe and the outlet pipe of the stop valve 300 are connected to the pressure-inducing pipe 200 by welding.

[0047] In a possible implementation, the valve group 400 is a three-valve group, and the two pressure-inducing pipes 200 are respectively connected to the two connecting ports of the three valve groups, and the valve group 400 is suitable for connecting to the differential pressure transmitter. Here, it should be noted that the valve group 400 is suitable for cutting off or connecting the fluid, balancing the pressure of the positive and negative pressure chambers of the differential pressure transmitter, and avoiding unidirectional pressure on the diaphragm box of the differential pressure transmitter. In the normal production process, it is used to check the zero point position of the differential pressure transmitter, so as to judge the operation status of the instrument.

[0048] It should be further explained that the four bolt holes on the flange surface of the valve group 400 are aligned with the base of the differential pressure transmitter, a gasket is placed between the two, and the valve group 400 is connected to the differential pressure transmitter by tightening the bolts. When the fluid flows through the throttling device 100 in the pipeline, a pressure difference will be generated at the pressure points before and after the throttling plate 110. The pressure difference is led to the differential pressure transmitter through two pressure-leading pipes 200. The function of the differential pressure transmitter is to receive and process the differential pressure signal and convert it into a standard signal output, so as to calculate and display the flow.

[0049] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A flow meter device with positioning function, characterized in that: include: Throttling device, positioning clamping part and valve group; The throttling device is provided with two pressure-guiding pipes; The valve group and the throttling device are respectively arranged at the two ends of the two pressure-inducing pipes; Both of the two pressure-guiding pipes are provided with stop valves; The positioning clamping part includes: a clamp and an adjusting rod; the clamp is sleeved on the outside of the two pressure-inducing pipes, and the clamp is located between the stop valve and the throttling device; A clearance groove is provided on the inner side of the clamp, and the clearance groove matches the pressure-leading tube. One of the pressure-leading tubes is suitable for being embedded in the clearance groove. The adjusting rod and the clearance groove are respectively arranged on opposite sides of the clamp. The adjusting rod passes through the clamp and is movably connected to the clamp. The adjusting rod can move in a direction toward or away from the side where the clearance groove is located, and the adjusting rod is suitable for abutting against the other pressure-leading tube.

2. The flow meter device with positioning function according to claim 1, characterized in that: The adjusting rod is a screw rod; The clamp is provided with a screw hole, the adjusting rod matches the screw hole, and the adjusting rod passes through the screw hole and penetrates the clamp.

3. The flow meter device with positioning function according to claim 2, characterized in that: The main body of the clamp is in a C-shaped structure.

4. The flow meter device with positioning function according to claim 3, characterized in that: The adjusting rod is provided with a hand-held portion; The hand-held portion is arranged at an end of the adjusting rod away from the pressure-inducing tube.

5. The flow meter device with positioning function according to claim 4, characterized in that: The main body of the handheld part is a hexagonal columnar structure.

6. The flow meter device with positioning function according to claim 3, characterized in that: The adjusting rod is provided with an anti-wear layer; The anti-wear layer is arranged at one end of the adjusting rod contacting the pressure-inducing pipe.

7. The flow meter device with positioning function according to claim 1, characterized in that: The throttling device comprises: two mounting parts and a throttling plate; The throttle plate is arranged between the two mounting members; The two pressure-inducing pipes are respectively arranged on the side walls of the two mounting members, and the two pressure-inducing pipes penetrate the side walls of the mounting members.

8. The flow meter device with positioning function according to claim 7, characterized in that: A fixing groove is provided on one side of the two mounting parts contacting the throttle plate; The fixing groove matches the throttle plate.

9. The flow meter device with positioning function according to claim 1, characterized in that: The valve group is a three-valve group.

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