Pipeline type vortex shedding flowmeter

Abstract

The utility model belongs to the technical field of vortex shedding flow meters, and particularly relates to a pipeline type vortex shedding flow meter which comprises a flow meter body, first flange plates are fixedly connected to the two sides of the flow meter body, sealing gaskets are fixedly connected to the sides, away from the flow meter body, of the first flange plates, and fixing rods are movably connected to the outer sides of the flow meter body and the sealing gaskets. Conveying pipes are movably connected to the two sides of the outer side of the fixing rod correspondingly, and an alignment mechanism is fixedly connected to the interior of the first flange plate. By arranging the alignment mechanism and the sealing gasket, the installation efficiency is improved, the sealing ring is located in the ring groove, so that the connecting pipe and the pipe body are located on the same axis, the hemisphere enters the alignment groove through rotation, the first fixing hole, the second fixing hole and the third fixing hole are located on the same axis, and a rod body is conveniently inserted; therefore, the installation efficiency and the installation precision are further improved.

Description

A type of in-line vortex flow meter Technical Field

[0001] This utility model belongs to the field of vortex flow meter technology, specifically a pipeline vortex flow meter. Background Technology

[0002] Vortex flow meters are volumetric flow meters that measure the volumetric flow rate, standard volumetric flow rate, or mass flow rate of gases, steam, or liquids based on the Karman vortex street principle. They are mainly used for measuring the flow rate of fluids in industrial pipelines. They are characterized by low pressure loss, a large measuring range, and high accuracy. When measuring volumetric flow rate under operating conditions, they are almost unaffected by parameters such as fluid density, pressure, temperature, and viscosity. They have no moving mechanical parts, so they are highly reliable and require little maintenance.

[0003] Existing in-line vortex flow meters require connection to the delivery pipe during use. Vortex flow meters are usually connected to the delivery pipe using a flange connection. However, flange connections require alignment of the fixing holes, which makes the installation process more complicated and results in poor alignment accuracy, reducing installation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a pipeline vortex flow meter with high installation efficiency to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pipeline vortex flow meter is provided, comprising a flow meter body, with first flanges fixedly connected to both sides of the flow meter body. A sealing gasket is fixedly connected to the side of the first flange away from the flow meter body. A fixing rod is movably connected to the outer side of the flow meter body and the sealing gasket. Delivery pipes are movably connected to both sides of the outer side of the fixing rod. An alignment mechanism is fixedly connected inside the first flange. The alignment mechanism includes a fixing cylinder fixedly connected inside the first flange. A limiting block is movably connected inside the fixing cylinder. A spring is fixedly connected between the fixing cylinder and the limiting block. A connecting block is fixedly connected to the side of the limiting block away from the spring. A hemisphere is fixedly connected to the side of the connecting block away from the limiting block.

[0006] Optionally, the flow meter body includes a connecting pipe, a meter is fixedly connected to the top of the connecting pipe, and a vortex generator is fixedly connected inside the connecting pipe.

[0007] Optionally, the fixing rod includes a rod body movably connected inside the first flange, the gasket, and the delivery pipe, with a nut threaded onto the outer side of the rod body and a limit pin movably connected inside the rod body.

[0008] Optionally, the first flange includes a first disc body fixedly connected to both sides of the connecting pipe, and the interior of the first disc body is provided with a first fixing hole and a first through hole.

[0009] Optionally, the sealing gasket includes a gasket body fixedly connected to the side of the first disc body away from the connecting tube, the gasket body having a second fixing hole and a second through hole inside, and a sealing ring fixedly connected to the side of the gasket body away from the connecting tube.

[0010] Optionally, the delivery pipe includes a second disc body movably connected to both sides of the outer side of the rod body. The second disc body has a third fixing hole inside. The side of the second disc body near the pad body has an alignment groove and a ring groove. The side of the second disc body away from the pad body is fixedly connected to a pipe body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention improves installation efficiency by incorporating an alignment mechanism and a sealing gasket. During installation, the sealing ring is located in the groove, ensuring that the first and second discs are on the same axis, which in turn ensures that the connecting pipe and the pipe body are on the same axis. This also facilitates the sealing between the first and second discs. By rotating the first flange, the hemisphere can be aligned with the alignment groove. Under the elastic force of the spring, the limiting block drives the hemisphere into the alignment groove through the connecting block, aligning the first, second, and third fixing holes on the same axis. This facilitates the insertion of the rod, further improving installation efficiency and accuracy. Furthermore, once the hemisphere enters the alignment groove, it ensures the stability of the flowmeter body, the first flange, and the sealing gasket, eliminating the need for manual support during installation and making installation more convenient. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 is a structural schematic diagram of the flow meter body and the first flange of this utility model;

[0016] Figure 3 is a schematic diagram of the structure of the fixing rod of this utility model;

[0017] Figure 4 is a cross-sectional structural diagram of the alignment mechanism of this utility model;

[0018] Figure 5 is a schematic diagram of the structure of the sealing gasket of this utility model;

[0019] Figure 6 is a cross-sectional structural diagram of the conveying pipe of this utility model.

[0020] In the diagram: 1. Flowmeter body; 101. Connecting pipe; 102. Meter; 103. Vortex generator; 2. Fixing rod; 201. Rod body; 202. Nut; 203. Limiting pin; 3. Alignment mechanism; 301. Fixing cylinder; 302. Spring; 303. Limiting block; 304. Connecting block; 305. Hemisphere; 4. First flange; 401. First disc body; 402. First fixing hole; 403. First through hole; 5. Sealing gasket; 501. Gasket body; 502. Second fixing hole; 503. Second through hole; 504. Sealing ring; 6. Delivery pipe; 601. Pipe body; 602. Alignment groove; 603. Third fixing hole; 604. Ring groove; 605. Second disc body. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Referring to Figures 1 to 6, the present invention will now be described. The pipeline vortex flowmeter includes a flowmeter body 1. First flanges 4 are fixedly connected to both sides of the flowmeter body 1. A sealing gasket 5 is fixedly connected to the side of the first flange 4 away from the flowmeter body 1. A fixing rod 2 is movably connected to the outer sides of the flowmeter body 1 and the sealing gasket 5. Delivery pipes 6 are movably connected to both sides of the outer sides of the fixing rod 2. An alignment mechanism 3 is fixedly connected inside the first flange 4. The alignment mechanism 3 includes a fixing cylinder 301 fixedly connected inside the first flange 4. A limiting block 303 is movably connected inside the fixing cylinder 301. A spring 3 is fixedly connected between the fixing cylinder 301 and the limiting block 303. 02. Spring 302 is in a compressed state. A connecting block 304 is fixedly connected to the side of the limiting block 303 away from spring 302. The limiting block 303 and the connecting block 304 can move inside the fixed cylinder 301. A hemisphere 305 is fixedly connected to the side of the connecting block 304 away from the limiting block 303. The hemisphere 305 has a hemispherical structure. During installation, the first flange 4 is placed at the edge between the second discs 605, so that the sealing gasket 5 contacts the second disc 605. By moving the first flange 4 towards the center position between the second discs 605, the hemisphere 305 can contact the second disc 605. Excessive compression allows the hemisphere 305 to retract into the sealing gasket 5, thereby positioning the first flange 4 and the sealing gasket 5 between the two second discs 605. Movement also positions the sealing ring 504 within the ring groove 604, ensuring that the first disc 401 and the second disc 605 are on the same axis. This, in turn, positions the connecting pipe 101 and the pipe body 601 on the same axis, guaranteeing a tight seal between the first disc 401 and the second disc 605. Rotation of the first flange 4 aligns the hemisphere 305 with the alignment groove 602, and the spring force of the spring 302 causes the limiting block 303 to pass through the connecting block. 304 drives the hemisphere 305 into the alignment groove 602, so that the first fixing hole 402, the second fixing hole 502 and the third fixing hole 603 are on the same axis, which facilitates the insertion of the rod 201, thereby further improving the installation efficiency and installation accuracy. At the same time, when the hemisphere 305 enters the alignment groove 602, it can ensure the stability of the flow meter body 1, the first flange 4 and the sealing gasket 5, eliminating the need to manually support the flow meter body 1, the first flange 4 and the sealing gasket 5 during installation, making installation more convenient. After inserting the rod 201, the nut 202 can be tightened for fixation, and then the limit pin 203 can be inserted to prevent the nut 202 from loosening.

[0026] In another embodiment of the present invention, the flow meter body 1 includes a connecting pipe 101, a meter 102 is fixedly connected to the top of the connecting pipe 101, the meter 102 is used to measure the fluid, and a vortex generator 103 is fixedly connected inside the connecting pipe 101, the vortex generator 103 is used to generate vortices.

[0027] In another embodiment of this utility model, the fixing rod 2 includes a rod body 201 movably connected inside the first flange 4, the sealing gasket 5, and the conveying pipe 6. The outer sides of the rod body 201 are provided with threads adapted to the nuts 202. The outer side of the rod body 201 is threaded with the nuts 202. The inside of the rod body 201 is movably connected with a limiting pin 203. The inside of the rod body 201 is provided with a slot for the limiting pin 203 to be inserted. The distance between the two slots on the left and the two slots on the right is adapted to the sum of the thicknesses of the first disc 401, the second disc 605, the gasket 501, and the two nuts 202, ensuring that the two slots are just exposed after the two nuts 202 are tightened, so that the limiting pin 203 can be inserted into the slot to prevent the nuts 202 from loosening.

[0028] In another embodiment of the present invention, the first flange 4 includes a first disc body 401 fixedly connected to both sides of the connecting pipe 101. The first disc body 401 is provided with a first fixing hole 402 and a first through hole 403 inside. The first fixing hole 402 is used for the rod body 201 to pass through, and the first through hole 403 is used for fixing the fixing cylinder 301.

[0029] In another embodiment of this utility model, the sealing gasket 5 includes a gasket body 501 fixedly connected to the side of the first disc body 401 away from the connecting tube 101. The gasket body 501 has a second fixing hole 502 and a second through hole 503 inside. The second fixing hole 502 is used for the passage of the rod body 201, and the second through hole 503 is used for the passage of the hemisphere 305. A sealing ring 504 is fixedly connected to the side of the gasket body 501 away from the connecting tube 101. The sealing ring 504 is used to press into the ring groove 604 to further ensure the sealing effect, and after pressing in, it can ensure that the connecting tube 101 and the tube body 601 are located on the same axis.

[0030] In another embodiment of this utility model, the conveying pipe 6 includes a second disc 605 movably connected to both sides of the outer side of the rod 201. The second disc 605 has a third fixing hole 603 inside, which is used for the rod 201 to pass through. The second disc 605 has an alignment groove 602 and a ring groove 604 on the side near the pad 501. The alignment groove 602 is used for the entry of the hemisphere 305, and the ring groove 604 is used for the entry of the sealing ring 504. The pipe body 601 is fixedly connected to the side of the second disc 605 away from the pad 501. The pipe body 601 is used for fluid conveying.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipeline vortex flow meter, comprising a flow meter body (1), characterized in that: The flow meter body (1) is fixedly connected to both sides of a first flange (4). A sealing gasket (5) is fixedly connected to the side of the first flange (4) away from the flow meter body (1). A fixing rod (2) is movably connected to the outside of the flow meter body (1) and the sealing gasket (5). A delivery pipe (6) is movably connected to both sides of the outside of the fixing rod (2). An alignment mechanism (3) is fixedly connected inside the first flange (4). The alignment mechanism (3) includes a fixing cylinder (301) fixedly connected inside the first flange (4). A limiting block (303) is movably connected inside the fixing cylinder (301). A spring (302) is fixedly connected between the fixing cylinder (301) and the limiting block (303). A connecting block (304) is fixedly connected to the side of the limiting block (303) away from the spring (302). A hemisphere (305) is fixedly connected to the side of the connecting block (304) away from the limiting block (303).

2. The pipeline vortex flow meter as described in claim 1, characterized in that: The flow meter body (1) includes a connecting pipe (101), a meter (102) is fixedly connected to the top of the connecting pipe (101), and a vortex generator (103) is fixedly connected inside the connecting pipe (101).

3. The pipeline vortex flow meter as described in claim 1, characterized in that: The fixed rod (2) includes a rod body (201) movably connected inside the first flange (4), the sealing gasket (5) and the delivery pipe (6), with a nut (202) threaded on the outside of the rod body (201) and a limit pin (203) movably connected inside the rod body (201).

4. The pipeline vortex flow meter as described in claim 1, characterized in that: The first flange (4) includes a first disc body (401) fixedly connected to both sides of the connecting pipe (101), and the first disc body (401) is provided with a first fixing hole (402) and a first through hole (403) inside.

5. The in-line vortex flow meter as described in claim 1, characterized in that: The sealing gasket (5) includes a gasket body (501) fixedly connected to the side of the first disc body (401) away from the connecting tube (101). The gasket body (501) has a second fixing hole (502) and a second through hole (503) inside. A sealing ring (504) is fixedly connected to the side of the gasket body (501) away from the connecting tube (101).

6. The pipeline vortex flow meter as described in claim 1, characterized in that: The conveying pipe (6) includes a second disc (605) movably connected to both sides of the outer side of the rod (201). The second disc (605) has a third fixing hole (603) inside. The second disc (605) has an alignment groove (602) and a ring groove (604) on the side of the second disc (605) close to the pad (501). The pipe (601) is fixedly connected to the side of the second disc (605) away from the pad (501).

Images