Elbow flowmeter

Abstract

The utility model discloses an elbow flowmeter, and relates to the technical field of flowmeters. The pressure monitoring device comprises an elbow pipeline and a liquid pipeline, first flanges are fixedly installed at the two ends of the elbow pipeline respectively, a pressure monitoring mechanism used for detecting the pressure of liquid in the elbow pipeline is arranged on the surface of the elbow pipeline, and a second flange is fixedly installed at the end of the liquid pipeline. The connecting bolt is inserted into the first flange, the second flange and the clamping assembly, so that the liquid pipeline and the elbow pipeline are connected and fixed, and the axial tensile strength after the liquid pipeline and the elbow pipeline are connected is improved through the clamping assembly; the impact resistance of liquid in the elbow pipeline and the liquid pipeline during flowing can be improved, the phenomenon of leakage of the connecting part of the second flange and the first flange is prevented, and the liquid flow in the elbow pipeline is monitored through the pressure monitoring mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of flow meters, and particularly relates to an elbow flow meter. Background Art

[0002] An elbow flow meter generally refers to an instrument used to measure the flow rate of a fluid, which is installed at the elbow of a pipeline. This flow meter uses the pressure difference generated when the fluid passes through the elbow to determine the flow rate. The basic principle is to calculate the flow rate based on the pressure difference generated when the fluid passes through the elbow, and use the relationship between Bernoulli's equation and the continuity equation to determine the flow rate by measuring the difference between the static pressure and the total pressure in the fluid.

[0003] When the existing elbow flow meter is connected to a pipeline, when the liquid flows from the pipeline into the interior of the elbow flow meter, due to the certain curvature of the elbow flow meter, the liquid in the pipeline will exert an axial impact force on the inner wall of the elbow flow meter, and the impact force is likely to cause the connecting bolts to loosen, and thus there is a risk of detachment at the connection between the elbow flow meter and the pipeline during use.

[0004] Therefore, an elbow flow meter is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an elbow flow meter to solve the problems raised in the above background art.

[0006] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0007] An elbow flow meter includes an elbow pipeline and a liquid pipeline. First flanges are fixedly installed at both ends of the elbow pipeline. A pressure monitoring mechanism for detecting the liquid pressure in the elbow pipeline is arranged on the surface of the elbow pipeline. A second flange is fixedly installed at the end of the liquid pipeline. A sealing component for sealing the first flange and the second flange is arranged at the end of the first flange. A clamping component is arranged on the surface of the first flange. Connecting bolts are inserted into the first flange, the second flange and the clamping component.

[0008] Further, the pressure monitoring mechanism includes convex pipes. Two groups of corresponding convex pipes are arranged on the surface of the elbow pipeline. A housing is threadedly inserted into the surface of the convex pipe, and a pressure sensor for detecting pressure is inserted into the housing.

[0009] Further, the sealing component includes a sealing groove. A sealing groove is formed on the end face of the first flange. A sealing ring is sleeved in the sealing groove. A metal sealing plate is attached to the surfaces of the first flange and the second flange, and the metal sealing plate is sleeved on the surface of the sealing groove.

[0010] Further, the clamping component includes a U-shaped seat, the surface of the first flange is provided with a U-shaped seat, an L-shaped clamping plate is rotatably installed inside the U-shaped seat, and a U-shaped groove is formed on the surface of the L-shaped clamping plate.

[0011] Further, both the end portions of the sealing groove and the sealing ring are arranged in a V-shaped structure, and the sealing ring is made of rubber material.

[0012] Further, the U-shaped groove on the surface of the L-shaped clamping plate corresponds to the holes on the surfaces of the first flange and the second flange.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By aligning the second flange with the first flange, the sealing component on the surface of the first flange is pressed. Rotate the movable part of the clamping component so that the movable part of the clamping component is clamped with the surface of the second flange. Insert the connecting bolts into the first flange, the second flange, and the inside of the clamping component, thereby connecting and fixing the liquid pipeline and the elbow pipeline. Through the clamping component, the axial tensile strength after the connection of the liquid pipeline and the elbow pipeline is improved, so that the impact resistance during the liquid flow inside the elbow pipeline and the liquid pipeline can be enhanced, and the phenomenon of leakage at the connection part of the second flange and the first flange can be prevented. Through the pressure monitoring mechanism, the liquid flow rate inside the elbow pipeline can be monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a side view of the present utility model;

[0017] Figure 3 is a front cross-sectional view of the present utility model;

[0018] Figure 4 is the present utility model Figure 3 enlarged view of part A;

[0019] Figure 5 is a structural schematic diagram of the L-shaped clamping plate of the present utility model;

[0020] Reference numerals: 1, elbow pipeline; 2, first flange; 3, pressure monitoring mechanism; 301, convex pipe; 302, housing; 303, pressure sensor; 4, liquid pipeline; 5, second flange; 6, sealing component; 601, sealing groove; 602, sealing ring; 603, metal sealing plate; 7, clamping component; 701, U-shaped seat; 702, L-shaped clamping plate; 703, U-shaped groove; 8, connecting bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Components of the embodiments of the present utility model described and illustrated herein generally may be arranged and designed in a variety of different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0023] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model.

[0025] Such as Figures 1 to 5As shown in the figure, an elbow flowmeter includes an elbow pipe 1 and a liquid pipe 4. First flanges 2 are fixedly installed at both ends of the elbow pipe 1. A pressure monitoring mechanism 3 for detecting the liquid pressure inside the elbow pipe 1 is provided on the surface of the elbow pipe 1. A second flange 5 is fixedly installed at the end of the liquid pipe 4. A sealing component 6 for sealing the first flange 2 and the second flange 5 is provided at the end of the first flange 2. A clamping component 7 is provided on the surface of the first flange 2. A connecting bolt 8 is inserted into the first flange 2, the second flange 5, and the clamping component 7. More specifically, by aligning the second flange 5 with the first flange 2, the sealing component 6 on the surface of the first flange 2 is pressed. The movable part of the clamping component 7 is rotated so that the movable part of the clamping component 7 is clamped to the surface of the second flange 5. By inserting the connecting bolt 8 into the first flange 2, the second flange 5, and the clamping component 7, the connection between the liquid pipe 4 and the elbow pipe 1 is fixed. Through the clamping component 7, the axial tensile strength after the connection of the liquid pipe 4 and the elbow pipe 1 is improved, so that the impact resistance during the liquid flow inside the elbow pipe 1 and the liquid pipe 4 can be improved, and the leakage phenomenon at the connection part of the second flange 5 and the first flange 2 can be prevented. Through the pressure monitoring mechanism 3, the liquid flow rate inside the elbow pipe 1 can be monitored.

[0026] The pressure monitoring mechanism 3 includes a convex pipe 301. Two corresponding convex pipes 301 are provided on the surface of the elbow pipe 1. A housing 302 is threadedly inserted on the surface of the convex pipe 301, and a pressure sensor 303 for detecting pressure is inserted into the housing 302. More specifically, by connecting the housing 302 and the convex pipe 301, and inserting the pressure sensor 303 into the housing 302, the pressure sensor 303 is fixed. Through the pressure sensor 303, the liquid pressure is detected. The flow rate is calculated by the pressure difference generated. Using the relationship between the Bernoulli equation and the continuity equation, the flow rate is determined by measuring the difference between the static pressure and the total pressure in the fluid.

[0027] The sealing component 6 includes a sealing groove 601. A sealing groove 601 is opened on the end face of the first flange 2. A sealing ring 602 is sleeved inside the sealing groove 601. A metal sealing plate 603 is attached to the surfaces of the first flange 2 and the second flange 5, and the metal sealing plate 603 is sleeved on the surface of the sealing groove 601. More specifically, by the sealing groove 601, the sealing ring 602 is fixed. By the metal sealing plate 603 being located on the surface of the sealing ring 602, the oxidation of the sealing ring 602 is prevented. By the sealing ring 602 being located between the second flange 5 and the first flange 2, the gap between the second flange 5 and the first flange 2 is sealed.

[0028] The clamping component 7 includes a U-shaped seat 701. The U-shaped seat 701 is provided on the surface of the first flange 2. An L-shaped clamping plate 702 is rotatably installed inside the U-shaped seat 701. A U-shaped groove 703 is formed on the surface of the L-shaped clamping plate 702. More specifically, when the second flange 5 and the first flange 2 are connected, by flipping the L-shaped clamping plate 702, the L-shaped clamping plate 702 is clamped with the second flange 5. The connecting bolt 8 is inserted into the first flange 2, the second flange 5 and the U-shaped groove 703, so as to connect the second flange 5 and the first flange 2. The L-shaped clamping plate 702 and the U-shaped seat 701 axially clamp the first flange 2 and the second flange 5.

[0029] Both ends of the sealing groove 601 and the sealing ring 602 are arranged in a V-shaped structure, and the sealing ring 602 is made of rubber material. More specifically, the V-shaped sealing groove 601 is used to fixedly install the sealing ring 602.

[0030] The U-shaped groove 703 on the surface of the L-shaped clamping plate 702 corresponds to the holes on the surfaces of the first flange 2 and the second flange 5. More specifically, the correspondence between the U-shaped groove 703 and the holes on the surfaces of the first flange 2 and the second flange 5 facilitates the fixation of the first flange 2, the second flange 5 and the U-shaped groove 703.

[0031] In summary: By aligning the second flange 5 and the first flange 2, the sealing component 6 on the surface of the first flange 2 is pressed. Rotate the movable part of the clamping component 7 so that the movable part of the clamping component 7 is clamped with the surface of the second flange 5. The connecting bolt 8 is inserted into the first flange 2, the second flange 5 and the inside of the clamping component 7, so as to connect and fix the liquid pipeline 4 and the elbow pipeline 1. The clamping component 7 improves the axial tensile strength after the connection of the liquid pipeline 4 and the elbow pipeline 1, improves the impact resistance when the liquid flows inside the elbow pipeline 1 and the liquid pipeline 4, and prevents leakage at the connection part of the second flange 5 and the first flange 2. The pressure monitoring mechanism 3 monitors the liquid flow inside the elbow pipeline 1.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An elbow flow meter, characterized in that: The invention comprises an elbow pipe (1) and a liquid pipe (4), wherein first flanges (2) are fixedly mounted at both ends of the elbow pipe (1), a pressure monitoring mechanism (3) for detecting the liquid pressure in the elbow pipe (1) is arranged on the surface of the elbow pipe (1), a second flange (5) is fixedly mounted at the end of the liquid pipe (4), a sealing assembly (6) for sealing the first flange (2) and the second flange (5) is arranged at the end of the first flange (2), a clamping assembly (7) is arranged on the surface of the first flange (2), and connecting bolts (8) are inserted into the interior of the first flange (2), the second flange (5) and the clamping assembly (7).

2. An elbow flowmeter according to claim 1, characterized in that: The pressure monitoring mechanism (3) comprises a convex tube (301), and two groups of corresponding convex tubes (301) are arranged on the surface of the elbow pipe (1). A shell (302) is threadedly inserted into the surface of the convex tube (301), and a pressure sensor (303) for detecting pressure is inserted into the interior of the shell (302).

3. The elbow flow meter according to claim 1, characterized in that: The sealing assembly (6) comprises a sealing groove (601), the end surface of the first flange (2) is provided with a sealing groove (601), a sealing ring (602) is sleeved inside the sealing groove (601), the surfaces of the first flange (2) and the second flange (5) are bonded with a metal sealing plate (603), and the metal sealing plate (603) is sleeved on the surface of the sealing groove (601).

4. The elbow flow meter according to claim 1, characterized in that: The clamping assembly (7) comprises a U-shaped seat (701), the surface of the first flange (2) is provided with the U-shaped seat (701), an L-shaped clamping plate (702) is rotatably mounted inside the U-shaped seat (701), and a U-shaped groove (703) is provided on the surface of the L-shaped clamping plate (702).

5. The elbow flow meter according to claim 3, characterized in that: The ends of the sealing groove (601) and the sealing ring (602) are both arranged in a V-shaped structure, and the sealing ring (602) is made of rubber material.

6. The elbow flow meter according to claim 4, characterized in that: The U-shaped groove (703) on the surface of the L-shaped clamping plate (702) is arranged corresponding to the holes on the surfaces of the first flange (2) and the second flange (5).

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