Generator for pulsation differential pressure flowmeter

Abstract

The utility model relates to a generating body for a pulsation differential pressure flowmeter, which belongs to the technical field of flowmeter sounding bodies and comprises a generating body, one end of the generating body is provided with a lower block, and the other end of the generating body is provided with an upper block. The generating body comprises a generating body front wall and a generating body rear wall parallel to the generating body front wall, a left arc-shaped wall and a right arc-shaped wall which are arranged in a bilateral symmetry mode are arranged between the generating body front wall and the generating body rear wall, a left generating groove is formed in the left arc-shaped wall, a right generating groove is formed in the right arc-shaped wall, and the generating body front wall and the generating body rear wall are arranged in a staggered mode. A first hole and a second hole are formed in the lower block, the left generating groove is communicated with the first hole through a first communicating hole, and the right generating groove is communicated with the second hole through a second communicating hole. By arranging the left generating groove and the right generating groove, the generating body can generate vortexes, and by arranging the first communicating hole and the second communicating hole, pressure can be conveniently transmitted.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter generating body technical field especially relates to a kind of generating body for pulsating differential pressure flowmeter. BACKGROUND

[0002] Doppler flow detection device is a kind of generating body for pulsating differential pressure flowmeter, which is an instrument for measuring fluid velocity and flow by Doppler effect. It is a kind of non-contact measurement technology for pulsating differential pressure flowmeter, with wide measurement range, high precision, fast response speed and other advantages, widely used in industry, agriculture, medical treatment and other fields.

[0003] The Doppler flow detection device of the prior art is usually fixedly installed above the flow area or underground water area to be detected. By adjusting the installation position during installation, the detection surface of the flow detection device and the water surface of the water area to be detected form a certain angle, and the angle range is between 45° and 50°, which is the best. However, due to the change of water surface height of the flow area or the limitation of installation position of the Doppler flow detection device (there are many factors that make it inconvenient to install in outdoor environment and underground well wall), the detection surface of the Doppler flow detection device and the water surface of the water area cannot be kept at the best detection angle, or the water surface of the center area of the flow area to be detected cannot be detected when the detection angle is the best. Therefore, it is necessary to design a Doppler flow detection device for pulsating differential pressure flowmeter, which can always keep the best observation angle and accurately measure the flow rate of the water area to be detected. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of generating body for pulsating differential pressure flowmeter, which is simple and convenient to operate, low in cost, and can keep the detection surface of the detection device and the water surface to be detected at the best detection angle.

[0005] In order to achieve the above-mentioned utility model purposes, the utility model provides a kind of generating body for pulsating differential pressure flowmeter, which includes a generating body, one end of the generating body is provided with a lower block, the other end of the generating body is provided with an upper block, the generating body includes a generating body front wall and a generating body rear wall parallel to the generating body front wall, left and right symmetrical left arc-shaped wall and right arc-shaped wall are provided between the generating body front wall and the generating body rear wall, left generating groove is provided on the left arc-shaped wall, right generating groove is provided on the right arc-shaped wall, first hole and second hole are provided on the lower block, the left generating groove is communicated with the first hole through first communication hole, and the right generating groove is communicated with the second hole through second communication hole.

[0006] Further, the left generating groove and the right generating groove are symmetrically arranged about the generating body front wall.

[0007] Further, the lower block is provided with a positioning groove, and the first hole and the second hole are symmetrically arranged relative to the positioning groove.

[0008] Further, the surface roughness of the surface of the lower block and the upper block is 6.3.

[0009] Further, the lower block and the upper block are both cylindrical structures, and the diameter of the cylindrical lower block is equal to the diameter of the cylindrical upper block.

[0010] Further, the coaxiality of the upper block and the lower block is 0.1.

[0011] Further, the width of the front wall of the generating body is less than the width of the rear wall of the generating body.

[0012] Further, the left arc-shaped wall connects the front wall and the rear wall of the generating body on the left side of the generating body, and the right arc-shaped wall connects the front wall and the rear wall of the generating body on the right side of the generating body.

[0013] Further, the top of the upper block is provided with a chamfer.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] By setting the upper block and the lower block in the shape of a cylinder and equal in diameter, the design and manufacture are facilitated.

[0016] By setting the coaxiality of the upper block and the lower block to 0.1, the generating body can be installed in the flowmeter.

[0017] By setting the left generating groove and the right generating groove, the generating body can generate vortex, and by setting the first communication hole and the second communication hole, the pressure can be transmitted. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of a three-dimensional structure of an embodiment of the utility model;

[0019] Figure 2 is another schematic diagram of a three-dimensional structure of an embodiment of the utility model;

[0020] Figure 3 is a schematic diagram of a front view structure of an embodiment of the utility model;

[0021] Figure 4 is a schematic diagram of a sectional view structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. The embodiments of this utility model are described below with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, a generator for a pulse differential pressure flow meter includes a generator body (1), one end of which is provided with a lower block (2), and the other end of which is provided with an upper block (3). The generator body (1) includes a generator front wall (15) and a generator rear wall (16) parallel to the generator front wall (15). A left arc-shaped wall (11) and a right arc-shaped wall (12) symmetrically arranged are provided between the generator front wall (15) and the generator rear wall (16). A left generating groove (13) is provided on the left arc-shaped wall (11), and a right generating groove (14) is provided on the right arc-shaped wall (12). A first hole (21) and a second hole (22) are provided on the lower block (2). The left generating groove (13) is connected to the first hole (21) through a first connecting hole (17), and the right generating groove (14) is connected to the second hole (22) through a second connecting hole.

[0024] Furthermore, the left generating groove (13) and the right generating groove (14) are symmetrically arranged about the front wall (15) of the generator;

[0025] Furthermore, the lower block (2) is also provided with a positioning groove (23), and the first hole (21) and the second hole (22) are symmetrically arranged about the positioning groove (23);

[0026] Furthermore, the surface roughness of the lower block (2) and the upper block (3) is 6.3;

[0027] Furthermore, both the lower block (2) and the upper block (3) are cylindrical structures, and the diameters of the cylindrical lower block (2) and the cylindrical upper block (3) are equal.

[0028] Furthermore, the coaxiality between the upper block (3) and the lower block (2) is 0.1;

[0029] Furthermore, the width of the front wall (15) of the generator is smaller than the width of the rear wall (16) of the generator;

[0030] Further, the left arc-shaped wall (11) connects the generator front wall (15) and the generator rear wall (16) on the left side of the generator body (1), and the right arc-shaped wall (12) connects the generator front wall (15) and the generator rear wall (16) on the right side of the generator body (1);

[0031] Further, the top of the upper block (3) is provided with a chamfer;

[0032] By setting the upper block (3) and the lower block (2) in the shape of a cylinder and equal in diameter, the design and manufacture are facilitated.

[0033] By setting the coaxiality of the upper block (3) and the lower block (2) to 0.1, the generator body can be installed in the flowmeter.

[0034] By setting the left generator groove (13) and the right generator groove (14), the generator body can generate vortex, and by setting the first communication hole (17) and the second communication hole, the pressure can be transmitted.

[0035] The technical scheme of the utility model is described above in combination with specific embodiments, but it should be noted that the above description is only for explaining the scheme of the utility model, and cannot be interpreted as a specific limitation on the protection scope of the utility model in any way. Based on the explanation here, other specific embodiments or equivalent replacements of the utility model that can be thought of by those skilled in the art without creative labor will fall within the protection scope of the utility model.

Claims

1. A generator for a pulsating differential pressure flow meter, characterized by, The application relates to a generating body, which comprises a generating body body (1), one end of the generating body body (1) is provided with a lower block (2), the other end of the generating body body (1) is provided with an upper block (3), the generating body body (1) comprises a generating body front wall (15) and a generating body rear wall (16) parallel to the generating body front wall (15), left and right symmetrical left arc walls (11) and right arc walls (12) are arranged between the generating body front wall (15) and the generating body rear wall (16), a left generating groove (13) is arranged on the left arc wall (11), a right generating groove (14) is arranged on the right arc wall (12), a first hole (21) and a second hole (22) are arranged on the lower block (2), the left generating groove (13) and the first hole (21) are communicated through a first communication hole (17), the right generating groove (14) and the second hole (22) are communicated through a second communication hole.

2. A generator for use in a pulsating differential pressure flow meter according to claim 1, wherein, The left generating groove (13) and the right generating groove (14) are symmetrically arranged relative to the generating body front wall (15).

3. A generator for use in a pulsating differential pressure flow meter according to claim 1, wherein, The first hole (21) and the second hole (22) are symmetrically arranged relative to a positioning groove (23) on the lower block (2).

4. A generator for use in a pulsating differential pressure flow meter according to claim 1, wherein, The surface roughness of the surfaces of the lower block (2) and the upper block (3) is 6.

3.

5. A generator for use in a pulsating differential pressure flow meter according to claim 1, wherein, The lower block (2) and the upper block (3) are both cylindrical structures, and the diameter of the cylindrical lower block (2) is equal to that of the cylindrical upper block (3).

6. A generator for use in a pulsating differential pressure flow meter according to claim 5, wherein, The coaxiality of the upper block (3) and the lower block (2) is 0.

1.

7. A generator for use in a pulsating differential pressure flow meter according to claim 1, wherein, The width of the generating body front wall (15) is smaller than that of the generating body rear wall (16).

8. A generator for use in a pulsating differential pressure flow meter according to claim 7, wherein, The left arc wall (11) connects the generating body front wall (15) and the generating body rear wall (16) on the left side of the generating body body (1), and the right arc wall (12) connects the generating body front wall (15) and the generating body rear wall (16) on the right side of the generating body body (1).

9. A generator for use in a pulsating differential pressure flow meter according to claim 7, wherein, The top of the upper block (3) is provided with a chamfer.

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