Vortex shedding flowmeter

Abstract

The utility model relates to the field of flow detection equipment, in particular to a vortex shedding flowmeter which comprises a pipe body and a vortex generating body, a flow channel is transversely arranged in the pipe body, a first step is arranged on the upper side of the pipe body, a first connecting hole and a first inserting hole matched with the vortex generating body are formed in the first step, and the first inserting hole is vertically arranged. The lower end of the first insertion hole communicates with the flow channel. A connecting part is arranged at the upper end of the vortex generating body, and a second connecting hole is formed in the connecting part; the vortex generating body is inserted into the first inserting hole and extends downwards into the flow channel, the connecting part abuts against the upper side of the first step, and the first connecting hole and the second connecting hole are fixedly connected through a screw. According to the vortex shedding flowmeter, the first step is arranged on the upper side of the pipe body, the vortex generating body is inserted into the first inserting hole and fixedly connected with the first step through the screw, a through hole does not need to be formed in the lower side of the pipe body, water flow is prevented from overflowing from the through hole in the lower side, and the sealing performance of the vortex shedding flowmeter is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flow detection equipment field especially a vortex flowmeter. BACKGROUND

[0002] Most of the vortex generators in the existing vortex flowmeter are welded inside the shell. If the vortex generator needs to be maintained or replaced, the entire vortex flowmeter needs to be disassembled, which is extremely inconvenient.

[0003] The patent with publication number CN209945462U discloses a temperature and pressure integrated vortex flowmeter convenient to disassemble and assemble, which comprises a connecting pipe, both ends of the connecting pipe are fixedly connected with outer sleeve pipes, the surface of the outer sleeve pipes is fixedly installed with a cable tie, the top of the connecting pipe is inserted with a support rod, the bottom end of the support rod extends into the connecting pipe and is integrally connected with a vortex generator, the bottom end of the vortex generator is fixedly connected with a screw rod penetrating through the connecting pipe, and the surface of the screw rod is threadedly connected with a locking nut.

[0004] The above technology solves the disassembly and assembly problem of the vortex generator. However, the above technology sets through holes on the upper and lower sides of the connecting pipe, the vortex generator first passes through the two through holes from top to bottom, and then is fixed from the lower side through the nut. This installation method makes the sealing performance of the connecting pipe poor, and water flow is easy to overflow from the through hole on the lower side of the connecting pipe. The sealing performance of the vortex flowmeter has certain improvement space. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the purpose of the utility model is to provide a vortex flowmeter which is convenient to disassemble and assemble and has good sealing performance.

[0006] The utility model adopts the technical scheme that a vortex flowmeter, which comprises a pipe body and a vortex generator, a flow channel is arranged in the pipe body, the flow channel is arranged horizontally, a first step is arranged on the upper side of the pipe body, a first connecting hole and a first plug-in hole matched with the vortex generator are arranged on the first step, the first plug-in hole is arranged vertically, and the lower end of the first plug-in hole is communicated with the flow channel; a connecting part is arranged on the upper end of the vortex generator, and a second connecting hole is arranged on the connecting part; the vortex generator is plugged into the first plug-in hole and extends downward into the flow channel, the connecting part abuts against the upper side of the first step, and the first connecting hole and the second connecting hole are fixedly connected through a screw.

[0007] As a further improvement of the above technical scheme, a first annular groove is arranged on the first step, a sealing ring is installed in the first annular groove, the first annular groove surrounds the upper end opening of the first plug-in hole, and the sealing ring is press-connected to the lower side of the connecting part.

[0008] As a further improvement of the above technical scheme, the first connecting hole is a blind hole.

[0009] As a further improvement of the above technical solution, the flow channel is a square through hole penetrating through the left and right ends of the pipe body.

[0010] As a further improvement of the above technical solution, the upper side of the pipe body is further provided with a second step, a second plug-in hole for mounting a detection probe is arranged on the second step, the second plug-in hole is vertically arranged, and the lower end of the second plug-in hole is communicated with the flow channel; a third connecting hole is arranged on the second step, a fourth connecting hole is arranged on the detection probe, and the third connecting hole and the fourth connecting hole are fixedly connected through screws.

[0011] As a further improvement of the above technical solution, a second annular groove is arranged on the second step, a sealing ring is mounted in the second annular groove, and the second annular groove surrounds the upper end opening of the second plug-in hole.

[0012] As a further improvement of the above technical solution, the upper end surface of the second step is higher than the upper end surface of the first step, and the upper end surface of the connecting portion is flush with the upper end surface of the second step.

[0013] As a further improvement of the above technical solution, the third connecting hole is a blind hole.

[0014] The utility model discloses the beneficial effect is: the utility model discloses a first step is arranged on the upper side of the pipe body, the first connecting hole and the first plug-in hole are arranged on the first step, the connecting portion is arranged on the upper end of the vortex generator, the second connecting hole is arranged on the connecting portion, the vortex generator is inserted in the first plug-in hole and is fixedly connected with the first step through screws, and the utility model discloses a through hole is not arranged on the lower side of the pipe body, the water flow is prevented from overflowing from the lower through hole, and the sealing property of the vortex street flowmeter is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained and described below in combination with the description of the drawings and the specific embodiment.

[0016] Fig. 1 It is the structural exploded view of the utility model;

[0017] Fig. 2 It is one of the structural section view of the utility model;

[0018] Fig. 3 It is the second structural section view of the utility model;

[0019] In the figure: 1-tube body, 11-first step, 111-first plug-in hole, 112-first annular groove, 113-first connecting hole, 12-second step, 121-second plug-in hole, 122-second annular groove, 123-third connecting hole, 2-vortex generator, 21-connection part, 211-second connecting hole, 13-flow channel. DETAILED DESCRIPTION

[0020] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0021] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as the limitation of the utility model.

[0022] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first, the second is described, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0023] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0024] Reference Figs. 1 to 3The utility model provides a kind of vortex flowmeter, including pipe body 1 and vortex generator 2, the vortex generator 2 is detachably connected with the pipe body 1, flow channel 13 is provided in the pipe body 1, the flow channel 13 is transversely arranged, the water flow passes through the flow channel 13 from right to left;The upper side of the pipe body 1 is provided with first step 11, the first step 11 has a certain thickness, the first step 11 is provided with first connecting hole 113 and the first plug-in hole 111 matched with the vortex generator 2, the first plug-in hole 111 is vertically arranged, the first plug-in hole 111 is perpendicular to the flow channel 13, the first plug-in hole 111 is vertically through the first step 11, the lower end of the first plug-in hole 111 is communicated with the flow channel 13;The upper end of the vortex generator 2 is provided with connecting part 21, and the second connecting hole 211 is arranged on the connecting part 21;The vortex generator 2 is plugged in the first plug-in hole 111 and extends into the flow channel 13 downwards, the lower end of the vortex generator 2 is located in the flow channel 13, the connecting part 21 is abutted on the upper side of the first step 11, the lower side of the connecting part 21 is attached to the upper side of the first step 11, the first connecting hole 113 and the second connecting hole 211 are fixedly connected by screw, by the above design, without being arranged on the lower side of pipeline, avoid water overflow from the lower side of pipeline, improve the sealing property of flowmeter, and simultaneously, after vortex generator 2 is inserted into pipeline from top to bottom, it is directly screwed and fixed on the vortex generator 2, without being fixed from below, improve the convenience of installation.

[0025] In the preferred embodiment, the upper side of the first step 11 is provided with a first annular groove 112, a sealing ring is installed in the first annular groove 112, the first annular groove 112 surrounds the upper end opening of the first plug-in hole 111, and the sealing ring is crimped on the lower side of the connecting part 21 to prevent water overflow upwards, further improving the sealing property of the flowmeter.

[0026] In the preferred embodiment, the first connecting hole 113 is a blind hole, and the lower end of the first connecting hole 113 is located in the first step 11 to prevent water overflow from the first connecting hole 113, further improving the sealing property of the flowmeter.

[0027] In the preferred embodiment, the flow channel 13 is a square through-hole penetrating through the left and right ends of the pipe body 1, that is, the flow passage (front direction longitudinal section) of the flow channel 13 is square-shaped, improving vortex stability to ensure measurement accuracy.

[0028] In the preferred embodiment, the upper side of the pipe body 1 is further provided with a second step 12, the second step 12 is provided with a second insertion hole 121 for installing a detection probe, the second insertion hole 121 is vertically arranged, the second insertion hole 121 is perpendicular to the flow channel 13, the lower end of the second insertion hole 121 communicates with the flow channel 13; the second step 12 is provided with a third connecting hole 123, the detection probe is provided with a fourth connecting hole, the third connecting hole 123 and the fourth connecting hole are fixedly connected through screws, and the detection probe is fixedly connected to the second step 12 through screws.

[0029] In the preferred embodiment, the second step 12 is provided with a second annular groove 122, a sealing ring is installed in the second annular groove 122, and the second annular groove 122 surrounds the upper end opening of the second insertion hole 121 to prevent water from overflowing upward, thereby further improving the sealing performance of the flowmeter.

[0030] In the preferred embodiment, the upper end surface of the second step 12 is higher than the upper end surface of the first step 11, and the upper end surface of the connecting portion 21 is flush with the upper end surface of the second step 12.

[0031] In the preferred embodiment, the third connecting hole 123 is a blind hole, and the lower end of the third connecting hole 123 is located in the second step 12.

[0032] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation, direct or indirect application in other related technical fields under the utility model concept of the utility model, and the contents of the utility model specification and drawings are included in the patent protection range of the utility model.

Claims

1. A vortex flowmeter, comprising a pipe body (1) and a vortex generator (2), a flow channel (13) being arranged in the pipe body (1), the flow channel (13) being arranged transversely, characterized in that: a first step (11) is arranged on the upper side of the pipe body (1), the first step (11) being provided with a first connecting hole (113) and a first insertion hole (111) matched with the vortex generator (2), the first insertion hole (111) being arranged vertically, the lower end of the first insertion hole (111) being communicated with the flow channel (13); the vortex generator (2) is provided with a connecting part (21) at the upper end, the connecting part (21) being provided with a second connecting hole (211); the vortex generator (2) is inserted into the first insertion hole (111) and extends downward into the flow channel (13), the connecting part (21) abuts against the upper side of the first step (11), and the first connecting hole (113) and the second connecting hole (211) are fixedly connected by a screw.

2. The vortex flowmeter according to claim 1, characterized in that: a first annular groove (112) is arranged on the first step (11), a sealing ring is arranged in the first annular groove (112), the first annular groove (112) surrounds the upper end opening of the first insertion hole (111), and the sealing ring is press-fitted on the lower side of the connecting part (21).

3. The vortex flowmeter according to claim 1, characterized in that: the first connecting hole (113) is a blind hole.

4. The vortex flowmeter according to claim 1, characterized in that: the flow channel (13) is a square through hole penetrating through the left and right ends of the pipe body (1).

5. The vortex flowmeter according to claim 1, characterized in that: a second step (12) is further arranged on the upper side of the pipe body (1), the second step (12) is provided with a second insertion hole (121) for mounting a detection probe, the second insertion hole (121) is arranged vertically, and the lower end of the second insertion hole (121) is communicated with the flow channel (13); a third connecting hole (123) is arranged on the second step (12), a fourth connecting hole is arranged on the detection probe, and the third connecting hole (123) and the fourth connecting hole are fixedly connected by a screw.

6. The vortex flowmeter according to claim 5, characterized in that: a second annular groove (122) is arranged on the second step (12), a sealing ring is arranged in the second annular groove (122), and the second annular groove (122) surrounds the upper end opening of the second insertion hole (121).

7. The vortex flowmeter according to claim 5, characterized in that: the upper end surface of the second step (12) is higher than the upper end surface of the first step (11), and the upper end surface of the connecting part (21) is flush with the upper end surface of the second step (12).

8. The vortex flowmeter according to claim 5, characterized in that: the third connecting hole (123) is a blind hole. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Images