Mass flowmeter

Abstract

The utility model relates to the field of fluid mass flow measurement, and discloses a mass flow meter which comprises a connecting pipe and a measuring body, flanges are arranged at the two ends of the connecting pipe, the mass flow meter further comprises an arc-shaped plate and an arc-shaped groove located in the connecting pipe, the arc-shaped plate is in threaded connection with the arc-shaped groove, the lower end of the measuring body is fixedly connected with a threaded column, and the threaded column is fixedly connected with the connecting pipe. The lower end of the threaded column is provided with a sensing assembly electrically connected with the measuring main body, the sensing assembly is matched with an inner cavity of the connecting pipe, the lower end of the arc-shaped plate is provided with a blocking cylinder, the arc-shaped plate and the blocking cylinder are internally provided with threaded grooves matched with the threaded column, and a through hole matched with the blocking cylinder is formed in the position, at the lower end of the arc-shaped groove, in the connecting pipe. Compared with the prior art, the device has the advantages that the device can be independently disassembled and assembled, and the cost of later replacement and maintenance can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid mass flow measurement, in particular to a mass flow meter. Background Art

[0002] A mass flow meter is an instrument used to measure the mass flow rate of a fluid. The measuring body of the mass flow meter is composed of a sensor and a transmitter. The sensor can measure the heat taken away or absorbed by the fluid when it flows through, that is, it can measure the temperature difference. The transmitter can convert these temperature differences into electrical signals, and then calculate the mass flow rate of the fluid. The current mass flow meter is composed of a mass flow meter measuring body and a connecting pipe with a double-head interface. During use, the interfaces at both ends of the connecting pipe are respectively connected to the fluid pipeline so that the fluid can flow through the connecting pipe. The interfaces at both ends of the connecting pipe are connected to the fluid pipelines at both ends by flanges. The measuring body fixed on the connecting pipe by welding can detect the fluid flowing through the connecting pipe.

[0003] During daily use, the measuring body has a high failure rate, while the connecting pipe is relatively durable. This assembly and installation method means that when one of the measuring body or the connecting pipe fails and requires maintenance, the entire connecting pipe and the measuring body must be removed from between the fluid pipelines at both ends, and they cannot be disassembled and replaced separately. Moreover, when replacing, the entire measuring body including the connecting pipe must be replaced at the same time, which increases the cost of subsequent replacement and maintenance. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The technical problem to be solved by the utility model is that the current method of using flanges to fix the connecting pipe between the two end fluid pipelines and fixing the measuring body on the connecting pipe cannot be disassembled and assembled separately, and will lead to increased replacement and maintenance costs in the later stage.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a mass flow meter, including a connecting tube and a measuring body, flanges are provided at both ends of the connecting tube, and also include an arc plate and an arc groove located in the connecting tube, the arc plate is threadedly connected to the arc groove, a threaded column is fixed to the lower end of the measuring body, a sensor component electrically connected to the measuring body is provided at the lower end of the threaded column, the sensor component cooperates with the inner cavity of the connecting tube, a plugging tube is provided at the lower end of the arc plate, threaded grooves cooperating with the threaded column are provided in the arc plate and the connecting tube, and a through hole cooperating with the plugging tube is provided at the lower end of the arc groove.

[0008] As an improvement, a second mounting hole arranged opposite to each other is provided in the arc plate, and a first mounting hole arranged opposite to each other and cooperating with the second mounting hole is provided at the lower end of the arc groove in the connecting pipe.

[0009] As an improvement, the lower end of the measuring body is fixedly connected to a connecting block fixedly connected to the threaded column, the bottom surface of the connecting block is a plane, the upper end of the arc plate is fixedly connected to a flat plate cooperating with the connecting block, the upper end surface of the flat plate is a plane, and a threaded groove cooperating with the threaded column is provided in the connecting block.

[0010] As an improvement, a sealing rubber ring is adhered to the inner wall of the connecting pipe and the inner wall of the arc-shaped groove around the circumference of the through hole.

[0011] As an improvement, a washer cooperating with the bolt is adhered to the inner wall of the arc-shaped groove around the circumference of the mounting hole 1.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the advantages of the utility model are: the connecting pipe is fixedly connected between the fluid pipelines at both ends by means of a flange, the arc plate is fixedly installed in the arc groove, and finally the measuring body is fixedly installed in the threaded groove. The sensor component is now located in the connecting pipe, and the mass flow rate of the fluid flowing through the connecting pipe can be measured. When only the connecting pipe or the measuring body needs to be maintained and replaced, they can be disassembled and assembled separately for maintenance and replacement, thereby reducing the cost of later replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional mass flow meter Figure 1 .

[0015] Figure 2 It is an enlarged view of point A of a mass flow meter of the utility model.

[0016] Figure 3 The utility model is a three-dimensional mass flow meter Figure 2 .

[0017] Figure 4 It is an enlarged view of point B of a mass flow meter of the utility model.

[0018] Figure 5 The utility model is a three-dimensional mass flow meter Figure 3 .

[0019] Figure 6 It is an assembly schematic diagram of a mass flow meter of the utility model.

[0020] As shown in the figure: 1. Connecting pipe; 2. Flange; 3. Arc-shaped groove; 4. Through hole; 5. Mounting hole 1; 6. Arc-shaped plate; 7. Plug; 8. Threaded groove; 9. Mounting hole 2; 10. Flat plate; 11. Sensor assembly; 12. Threaded column; 13. Connecting block; 14. Measuring body. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a mass flow meter includes a connecting pipe 1 and a measuring body 14, wherein flanges 2 are provided at both ends of the connecting pipe 1, and further includes an arc plate 6 and an arc groove 3 located in the connecting pipe 1, wherein the arc plate 6 is threadedly connected to the arc groove 3, wherein mounting holes 2 9 arranged opposite to each other are provided in the arc plate 6, wherein mounting holes 1 5 arranged opposite to each other and cooperating with the mounting holes 2 9 are provided at the lower end of the arc groove 3 in the connecting pipe 1, wherein washers cooperating with bolts are adhered to the inner wall of the arc groove 3 around the periphery of the mounting holes 1 5, so as to improve the tightness when tightening the bolts, and wherein the measuring body A threaded column 12 is fixedly connected to the lower end of the body 14, and a sensor component 11 electrically connected to the measuring body 14 is provided at the lower end of the threaded column 12. The sensor component 11 cooperates with the inner cavity of the connecting tube 1, and a plugging tube 7 is provided at the lower end of the arc plate 6. A threaded groove 8 cooperating with the threaded column 12 is provided in the arc plate 6 and the plugging tube 7. A through hole 4 cooperating with the plugging tube 7 is provided at the lower end of the arc groove 3 in the connecting tube 1. Sealing rubber rings are adhered to the inner wall of the connecting tube 1 and the inner wall of the arc groove 3 around the through hole 4, which can improve the sealing performance when the plugging tube 7 is inserted into the through hole 4.

[0024] Through the above structure, the arc plate 6 is fixedly installed in the arc groove 3, and then the measuring body 14 is fixed on the arc plate 6 by means of the threaded column 12, so that the sensor component 11 can be fixed in the connecting tube 1 to achieve the measurement of mass flow rate. The measuring body 14 or the connecting tube 1 can be retained during disassembly and assembly, and the measuring body 14 and the connecting tube 1 can be replaced separately, thereby reducing the cost of subsequent maintenance and replacement.

[0025] Embodiment 2

[0026] like Figure 1 and Figure 2 As shown, the lower end of the measuring body 14 is fixedly connected to a connecting block 13 fixedly connected to the threaded column 12, the bottom surface of the connecting block 13 is a plane, the upper end of the arc plate 6 is fixedly connected to a flat plate 10 that cooperates with the connecting block 13, the upper end surface of the flat plate 10 is a plane, and a threaded groove 8 that cooperates with the threaded column 12 is provided in the connecting block 13.

[0027] Through the above structure, with the cooperation of the plane plate 10 and the connecting block 13 , the measuring body 14 can be installed on a plane instead of on the curved surface of the curved plate 6 , which facilitates the installation of the measuring body 14 .

[0028] When the utility model is implemented, during installation, the connecting pipe is placed between the two end fluid pipes, and then the flange is used to fix the connecting pipe between the two end fluid pipes, and then the arc plate is placed in the arc groove, and the mounting hole 1 and the mounting hole 2 are threadedly connected together by bolts, at this time the plugging tube is located in the through hole, and then the threaded column is aligned with the threaded groove on the plane plate and rotated, and the sensor component will extend into the connecting pipe through the plane plate, the arc plate and the threaded groove in the plugging tube, until the threaded column is completely threadedly connected in the threaded groove, and the connecting block fits on the upper end of the plane plate, and the installation is completed;

[0029] During use, the sensor and transmitter in the sensing assembly inserted into the connecting pipe can cooperate to measure the mass flow rate of the fluid flowing through the connecting pipe. The measuring body, threaded column and sensing assembly are a single entity, the arc plate and the plugging cylinder are a single entity, and the connecting pipe is a single component. When the measuring body, sensing assembly or connecting pipe needs to be replaced and maintained, they can be removed and replaced separately without replacing the measuring body, sensing assembly and connecting pipe at the same time, which can reduce the cost of later replacement and maintenance.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0032] The above describes the utility model and its implementation methods, which are not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A mass flow meter, comprising a connecting pipe (1) and a measuring body (14), wherein both ends of the connecting pipe (1) are provided with flanges (2), characterized in that: It also includes an arc-shaped plate (6) and an arc-shaped groove (3) located in the connecting tube (1), the arc-shaped plate (6) being threadedly connected to the arc-shaped groove (3), the lower end of the measuring body (14) being fixedly connected with a threaded column (12), the lower end of the threaded column (12) being provided with a sensor component (11) electrically connected to the measuring body (14), the sensor component (11) being matched with the inner cavity of the connecting tube (1), the lower end of the arc-shaped plate (6) being provided with a plugging tube (7), the arc-shaped plate (6) and the plugging tube (7) being provided with a threaded groove (8) matching with the threaded column (12), and the connecting tube (1) being provided with a through hole (4) matching with the plugging tube (7) at the lower end of the arc-shaped groove (3).

2. A mass flow meter according to claim 1, characterized in that: The arc-shaped plate (6) is provided with a second mounting hole (9) arranged opposite to each other, and the connecting pipe (1) is provided with a first mounting hole (5) arranged opposite to each other and matched with the second mounting hole (9) at the lower end of the arc-shaped groove (3).

3. A mass flow meter according to claim 1, characterized in that: The lower end of the measuring body (14) is fixedly connected to a connecting block (13) fixedly connected to the threaded column (12); the bottom surface of the connecting block (13) is a plane; the upper end of the arc plate (6) is fixedly connected to a plane plate (10) matched with the connecting block (13); the upper end surface of the plane plate (10) is a plane; and a thread groove (8) matched with the threaded column (12) is provided in the connecting block (13).

4. A mass flow meter according to claim 1, characterized in that: Sealing rubber rings are adhered to the inner wall of the connecting pipe (1) and the inner wall of the arc-shaped groove (3) around the through hole (4).

5. A mass flow meter according to claim 2, characterized in that: A washer matching with the bolt is adhered to the inner wall of the arc-shaped groove (3) around the circumference of the mounting hole (5).

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