Electromagnetic wave solid flowmeter with easy installation

Abstract

The utility model discloses a kind of electromagnetic wave solid flowmeter convenient to install, it is related to flowmeter technical field, the utility model includes flowmeter main part and microwave probe, flowmeter main part side is equipped with first tooth slot, flowmeter main part other side is equipped with sliding slot, and flowmeter main part outer part is respectively sleeved with fixed frame and movable frame, and movable frame inside is equipped with second tooth slot, and fixed frame inside is penetrated with sliding key. The utility model is equipped with the setting of fixed frame, movable frame, first tooth slot and second tooth slot, the thickness of fixed frame bottom is thinner, and aperture is slightly larger than microwave probe diameter, even if fixed frame is welded on medium pipeline, staff can also observe microwave probe insertion depth, to adjust the insertion depth of microwave probe;Movable frame is detachably connected with fixed frame by bolt, and it is convenient to assemble and subsequent disassembly to maintain flowmeter main part;Effectively solve the problem that probe insertion depth is difficult to observe, adjust time-consuming and labor-consuming in prior art.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, specifically to an electromagnetic wave solid flow meter that is easy to install. Background Technology

[0002] Electromagnetic solid flow meters are devices that use microwave probes to detect the flow rate of solid materials in pipelines. They mainly consist of the flow meter body, microwave probe, junction box, and other components. The measurement principle is based on the Doppler effect; the sensor generates a microwave field inside the pipeline, and the microwaves are reflected by the flowing particles. By calculating the changes in frequency and amplitude, the solid flow rate can be accurately measured. Non-flowing particles such as dust deposits are not included in the calculation.

[0003] Existing electromagnetic solid flow meters have significant installation drawbacks: during installation, the base must first be welded and fixed to the outer wall of the medium conveying pipeline, then the flow meter probe is inserted after drilling, and finally locked and limited by threads, flanges, etc. However, the base is usually quite long, and the gap between its inner diameter and the probe is small, making it difficult for operators to visually observe the probe insertion depth. Both excessively deep and shallow probe insertion will affect the measurement results. Existing solutions, whether correcting the insertion depth based on measurement data after powering on and conveying the medium, or customizing the base or probe length according to the usage scenario, are time-consuming and labor-intensive, which is not conducive to improving installation efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an easy-to-install electromagnetic wave solid flow meter to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-install electromagnetic wave solid flow meter, comprising a flow meter body and a microwave probe, wherein a first toothed groove is formed on one side of the flow meter body, and a sliding groove is formed on the other side of the flow meter body; a fixed frame and a movable frame are respectively sleeved on the outside of the flow meter body, and a second toothed groove is formed on the inner side of the movable frame; a sliding key passes through the inner side of the fixed frame; bolts pass through both sides of the fixed frame and the movable frame; a sealing gasket is connected between the fixed frame and the movable frame; and a sealing ring is sleeved on the outside of the microwave probe.

[0006] By adopting the above technical solution, the insertion depth of the microwave probe can be conveniently adjusted through the fixing bracket. The meshing of the first and second tooth grooves reduces axial displacement, and the cooperation of the sliding groove and sliding key assists in guidance and reduces rotational wear. At the same time, the sealing gasket and sealing ring fill the gap to enhance the sealing performance, thereby improving the overall ease of installation and stability of the flow meter.

[0007] Furthermore, the longitudinal section of the fixing frame is L-shaped, and the top of the fixing frame is semi-circular.

[0008] By adopting the above technical solution, the top of the fixed frame can be connected to the semi-circular movable frame, and the bottom can be stably connected to the medium conveying pipeline, forming a structure that takes into account both installation and adjustment space, providing a basis for the subsequent assembly of the movable frame and the depth adjustment of the microwave probe.

[0009] Furthermore, the bottom of the mounting bracket is annular, and the inner diameter of the bottom of the mounting bracket is larger than the diameter of the microwave probe.

[0010] By adopting the above technical solution, the bottom annular structure is easy to weld and fix to the medium delivery pipeline, while the larger inner diameter and thinner thickness make it easy for staff to visually observe the insertion depth of the microwave probe, thereby quickly adjusting it to the appropriate position.

[0011] Furthermore, the movable frame is semi-circular, and the movable frame is detachably connected to the fixed frame by bolts.

[0012] By adopting the above technical solution, the semi-circular movable frame can fit with the semi-circular structure on the top of the fixed frame to form a circular ring. The bolt connection method not only ensures the stability of the connection, but also facilitates assembly and subsequent disassembly and maintenance, reducing the difficulty of operation.

[0013] Furthermore, the sealing gasket has an "L"-shaped longitudinal section, and both the sealing gasket and the sealing ring are made of fluororubber or silicone rubber.

[0014] By adopting the above technical solution, the L-shaped sealing gasket can be adapted to the structure of the fixed frame and the movable frame, and better fill the gap between them; the fluororubber or silicone rubber material has good aging resistance and sealing performance, which can reduce the entry of external air and moisture and the leakage of internal media.

[0015] Furthermore, multiple first and second tooth grooves are provided, and the multiple first tooth grooves and multiple second tooth grooves are densely distributed, with the multiple first tooth grooves engaging with the multiple second tooth grooves respectively.

[0016] By adopting the above technical solution, the densely distributed teeth can reduce the change in microwave probe depth caused by the axial movement of the flow meter body. Although it is not stepless adjustment, it can reduce the displacement error of the insertion depth during the meshing process and enhance the limiting effect.

[0017] Furthermore, the slide groove and the slide key are slidably connected, and the flow meter body is slidably connected to the fixed frame. The slide key is assembled by an interference fit.

[0018] By adopting the above technical solution, the sliding fit between the slide groove and the slide key plays a guiding role when adjusting the insertion depth of the microwave probe, reducing the obstruction of the slide key to the adjustment process; after installation, it can reduce unnecessary wear caused by the rotation of the flow meter body and improve the service life of the equipment.

[0019] Furthermore, a junction box is connected to the top of the flow meter body, and a microwave probe is installed at the bottom of the flow meter body.

[0020] By adopting the above technical solution, the junction box can realize the connection between the external line and the flow meter body, which facilitates the transmission and processing of current and signals; the microwave probe is installed at the bottom, which makes it easy to directly insert into the medium conveying pipeline to realize the detection of solid material flow.

[0021] Furthermore, the inner diameter of the sealing ring is smaller than the outer diameter of the microwave probe, and the outer diameter of the sealing ring is larger than the inner diameter of the fixed frame and the movable frame.

[0022] By adopting the above technical solutions, the possibility of the sealing ring sliding freely outside the microwave probe or falling off during assembly can be reduced. At the same time, the risk of it falling into the medium delivery pipeline through the inner ring of the fixed frame can be reduced, and the fit with the fixed frame and movable frame can be improved to enhance the sealing performance.

[0023] Furthermore, multiple ribs are fixed to one side of both the fixed frame and the movable frame, and these multiple ribs are welded and fixed.

[0024] By adopting the above technical solutions, the ribs can enhance the structural strength of the fixed frame and the movable frame, reduce deformation caused by stress during use, improve the overall stability of the equipment, and ensure more reliable cooperation between the components.

[0025] In summary, the present invention has the following main advantages:

[0026] 1. This utility model, through the arrangement of a fixed frame, a movable frame, a first toothed groove, and a second toothed groove, features a fixed frame with a thinner bottom and a hole diameter slightly larger than the microwave probe diameter. Even when the fixed frame is welded to the medium pipeline, operators can observe the microwave probe insertion depth and adjust it accordingly. The movable frame is detachably connected to the fixed frame via bolts, facilitating assembly and subsequent disassembly for flowmeter maintenance. When the movable frame is connected to the fixed frame via bolts, the interlocking of the first and second toothed grooves acts as a limit, reducing probe depth changes caused by axial movement of the flowmeter body. Although the first and second toothed grooves cannot achieve stepless adjustment, their dense distribution reduces displacement errors in insertion depth due to tooth interlocking. This effectively solves the problems of difficult probe insertion depth observation and time-consuming and labor-intensive adjustment in existing technologies.

[0027] 2. This utility model, through the setting of the sliding groove and the sliding key, the sliding groove and the sliding key slide together, which can play a certain guiding role when adjusting the insertion depth of the microwave probe, and avoid the sliding key from obstructing the microwave probe insertion and adjustment process; after installation, the two together can play a limiting role to avoid unnecessary wear caused by the rotation of the flow meter body; thus improving the stability and service life of the equipment.

[0028] 3. This utility model uses a sealing gasket and a sealing ring. The sealing gasket fills the gap between the fixed frame and the movable frame, and the sealing ring fills the gap between the microwave probe and the fixed frame and the movable frame. Both are made of fluororubber or silicone rubber, which can reduce the occurrence of external air and moisture entering the equipment and reduce the possibility of internal media leakage; thus improving the sealing performance and safety of the equipment. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the exploded structure of the movable frame of this utility model;

[0031] Figure 3 This is a schematic diagram of the exploded structure of the fixing frame of this utility model;

[0032] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0033] Figure 5 This is a schematic diagram of the fixing frame structure of this utility model.

[0034] In the diagram: 1. Flow meter body; 2. Junction box; 3. Microwave probe; 4. Fixed bracket; 5. Movable bracket; 6. Bolt; 7. Sealing gasket; 8. Sealing ring; 9. First tooth groove; 10. Second tooth groove; 11. Slide groove; 12. Slide key. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] Example 1:

[0038] An easy-to-install electromagnetic wave solid flow meter, such as Figures 1-5As shown, the device includes a flow meter body 1 and a microwave probe 3. A first toothed groove 9 is formed on one side of the flow meter body 1, and a sliding groove 11 is formed on the other side. A fixed frame 4 and a movable frame 5 are respectively fitted onto the outside of the flow meter body 1. The fixed frame 4 has an "L"-shaped longitudinal section, a semi-circular top, and a circular bottom. The inner diameter of the bottom of the fixed frame 4 is larger than the diameter of the microwave probe 3. A second toothed groove 10 is formed on the inner side of the movable frame 5. Multiple first toothed grooves 9 and multiple second toothed grooves 10 are provided, and they are densely distributed. The multiple first toothed grooves 9 engage with the multiple second toothed grooves 10. A sliding key 12 passes through the inner side of the fixed frame 4, and the sliding groove 11 is slidably connected to the sliding key 12. The flow meter body 1 is slidably connected to the fixed frame 4. The sliding key 12 is assembled using an interference fit. The second toothed groove 10 on the inner side of the movable frame 5 engages with the side of the flow meter body 1. The first tooth grooves 9 interlock with each other. The densely distributed tooth grooves can reduce the probe depth change caused by the axial movement of the flow meter body 1 when interlocking, thus reducing displacement error. The sliding groove 11 and sliding key 12 can play a limiting role to avoid unnecessary wear caused by the rotation of the flow meter body 1. Bolts 6 pass through both sides of the fixed frame 4 and the movable frame 5. The movable frame 5 is semi-circular and is connected to the fixed frame 4 by bolts 6. The operator limits the movable frame 5 to the fixed frame 4 by bolts 6. A sealing gasket 7 is connected between the fixed frame 4 and the movable frame 5. The longitudinal section of the sealing gasket 7 is "L" shaped. A sealing ring 8 is sleeved on the outside of the microwave probe 3. Both the sealing gasket 7 and the sealing ring 8 are made of fluororubber or silicone rubber. The sealing gasket 7 and the sealing ring 8 are used to fill the gap between the fixed frame 4, the movable frame 5 and the microwave probe 3 to reduce the entry of external air and moisture into the equipment and the leakage of internal media.

[0039] See Figures 1-4 In the above embodiment, a junction box 2 is connected to the top of the flow meter body 1, and a microwave probe 3 is installed at the bottom of the flow meter body 1. After the flow meter body 1 is installed, the operator can connect external lines through the junction box 2 on the top of the flow meter body 1 to realize the transmission and processing of current and signals, so that the microwave probe 3 can generate a microwave field in the pipe based on the physical principle of the Doppler effect. The microwaves are reflected by the particles flowing in the pipe, so as to complete the detection of solid flow.

[0040] Example 2:

[0041] Based on the above embodiment 1, in order to ensure the stability of the sealing ring 8 and increase the sealing performance of the sealing ring 8, the following settings are now implemented.

[0042] See Figures 2-4In the above embodiment, the inner diameter of the sealing ring 8 is smaller than the outer diameter of the microwave probe 3, and the outer diameter of the sealing ring 8 is larger than the inner diameter of the fixed frame 4 and the movable frame 5. Because the inner diameter of the sealing ring 8 is smaller than the outer diameter of the microwave probe 3, it can reduce the possibility of it sliding freely outside the probe or falling off during assembly. The design that the outer diameter is larger than the inner diameter of the fixed frame 4 and the movable frame 5 can reduce the risk of it falling into the medium conveying pipeline through the inner ring of the fixed frame 4, and can form an interference fit to ensure tightness and thus improve sealing performance.

[0043] Example 3:

[0044] Based on the above embodiment one, the following settings are now adopted to increase structural strength.

[0045] See Figures 1-5 In the above embodiment, multiple ribs are fixed on one side of both the fixed frame 4 and the movable frame 5. The multiple ribs are welded and fixed. The multiple ribs welded on one side of the fixed frame 4 and the movable frame 5 enhance the structural strength and improve the stability of the equipment during installation and use, ensuring that the cooperation of each component is more reliable.

[0046] The implementation principle of this utility model is as follows: First, the staff welds and fixes the bottom of the fixing frame 4 to the outer wall of the medium conveying pipeline. Its longitudinal section is L-shaped, which makes the top form a semi-circular ring structure, while the bottom has a thinner thickness and a round hole slightly larger than the diameter of the microwave probe 3, which provides convenient conditions for subsequent observation of the insertion depth of the microwave probe 3.

[0047] Next, the staff first puts the sealing ring 8 on the outside of the microwave probe 3. Because the inner diameter of the sealing ring 8 is smaller than the outer diameter of the microwave probe 3, it can reduce the possibility of it sliding around outside the probe or falling off during assembly. The design of the outer diameter being larger than the inner diameter of the fixed frame 4 and the movable frame 5 can reduce the risk of it falling into the medium delivery pipeline through the inner ring of the fixed frame 4. Then, the staff inserts the microwave probe 3 from the top of the fixed frame 4 and into the medium delivery pipeline. At this time, the sliding groove 11 on the other side of the flow meter body 1 forms a sliding fit with the sliding key 12 on the inner side of the fixed frame 4. The sliding key 12 is assembled with an interference fit, which plays a certain guiding role in the insertion of the microwave probe 3 and avoids the sliding key 12 from obstructing the adjustment process. At this time, the staff can adjust the insertion depth of the microwave probe 3 according to the observation of the round hole at the bottom of the fixed frame 4.

[0048] After the microwave probe 3 insertion depth is adjusted, the operator holds the flow meter body 1 with one hand to prevent axial displacement, and places an L-shaped sealing gasket 7 between the fixed frame 4 and the movable frame 5 with the other hand. Then, the operator moves the semi-circular movable frame 5 towards the fixed frame 4, so that the second tooth groove 10 on the inner side of the movable frame 5 meshes with the first tooth groove 9 on one side of the flow meter body 1. The densely distributed tooth grooves reduce probe depth changes caused by axial movement of the flow meter body 1 during meshing, thus reducing displacement error. Afterwards, the operator holds the fixed frame 4 and the movable frame 5 with the other hand to ensure proper fit. Then, the operator can release the hand holding the flow meter body 1 and use that hand to thread the bolt 6 through. After passing through the fixed frame 4 and the movable frame 5, manually tighten all the bolts 6 until the fixed frame 4 and the movable frame 5 are in contact to prevent axial displacement of the flow meter body 1. Then, the operator can release the grip on the fixed frame 4 and the movable frame 5 and further tighten the bolts 6 with a wrench to ensure a stable connection. If other operators are present, one operator can manually adjust the insertion depth of the microwave probe 3 and ensure the insertion depth before tightening the bolts 6, while another operator places the sealing gaskets 7, the movable frame 5, and the bolts 6 one by one and tightens the bolts 6 with a wrench. In addition, the multiple ribs welded to one side of the fixed frame 4 and the movable frame 5 enhance the structural strength and improve the stability of the equipment during installation and use, ensuring more reliable cooperation between the components.

[0049] After the staff uses bolts 6 to limit the movable frame 5 to the fixed frame 4, the sliding groove 11 and sliding key 12 can play a limiting role to avoid unnecessary wear caused by the rotation of the flow meter body 1; improve the stability and service life of the equipment; at the same time, the sealing gasket 7 and sealing ring 8 are used to fill the gap between the fixed frame 4, the movable frame 5 and the microwave probe 3 to reduce the entry of external air and moisture into the equipment and the leakage of internal media. Moreover, because the inner diameter of the sealing ring 8 is smaller than the outer diameter of the microwave probe 3, while the outer diameter of the sealing ring 8 is larger than the inner diameter of the fixed frame 4 and the movable frame 5, an interference fit is formed to ensure tightness and thus improve the sealing performance.

[0050] After the flow meter body 1 is installed, the staff can connect external lines through the junction box 2 on the top of the flow meter body 1 to realize the transmission and processing of current and signals. This allows the microwave probe 3 to generate a microwave field in the pipe based on the physical principle of the Doppler effect. The microwaves are reflected by the particles flowing in the pipe, so as to complete the detection of solid flow.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An easy-to-install electromagnetic wave solid flow meter, comprising a flow meter body (1) and a microwave probe (3), characterized in that: The flow meter body (1) has a first toothed groove (9) on one side and a sliding groove (11) on the other side. The flow meter body (1) is fitted with a fixed frame (4) and a movable frame (5) on the outside. The movable frame (5) has a second toothed groove (10) on the inside. The fixed frame (4) has a sliding key (12) passing through the inside. Bolts (6) pass through both sides of the fixed frame (4) and the movable frame (5). A sealing gasket (7) is connected between the fixed frame (4) and the movable frame (5). A sealing ring (8) is fitted around the outside of the microwave probe (3).

2. The easy-to-install electromagnetic wave solid flow meter according to claim 1, characterized in that: The longitudinal section of the fixing frame (4) is "L" shaped, and the top of the fixing frame (4) is a semi-circular ring.

3. The easy-to-install electromagnetic wave solid flow meter according to claim 2, characterized in that: The bottom of the mounting bracket (4) is circular, and the inner diameter of the bottom of the mounting bracket (4) is larger than the diameter of the microwave probe (3).

4. The easy-to-install electromagnetic wave solid flow meter according to claim 3, characterized in that: The movable frame (5) is semi-circular, and the movable frame (5) is detachably connected to the fixed frame (4) by bolts (6).

5. The easy-to-install electromagnetic wave solid flow meter according to claim 1, characterized in that: The sealing gasket (7) has an "L" shaped longitudinal section, and both the sealing gasket (7) and the sealing ring (8) are made of fluororubber or silicone rubber.

6. The easy-to-install electromagnetic wave solid flow meter according to claim 1, characterized in that: The first tooth groove (9) and the second tooth groove (10) are provided in multiples, and the multiple first tooth grooves (9) and the multiple second tooth grooves (10) are densely distributed, and the multiple first tooth grooves (9) respectively mesh with the multiple second tooth grooves (10).

7. The easy-to-install electromagnetic wave solid flow meter according to claim 1, characterized in that: The slide groove (11) is slidably connected to the slide key (12), and the flow meter body (1) is slidably connected to the fixing frame (4). The slide key (12) is assembled by interference fit.

8. The easy-to-install electromagnetic wave solid flow meter according to claim 1, characterized in that: The flow meter body (1) is connected to a junction box (2) at the top, and the microwave probe (3) is installed at the bottom of the flow meter body (1).

9. The easy-to-install electromagnetic wave solid flow meter according to claim 5, characterized in that: The inner diameter of the sealing ring (8) is smaller than the outer diameter of the microwave probe (3), and the outer diameter of the sealing ring (8) is larger than the inner diameter of the fixed frame (4) and the movable frame (5).

10. The easy-to-install electromagnetic wave solid flow meter according to claim 4, characterized in that: Multiple ribs are fixed on one side of both the fixed frame (4) and the movable frame (5), and the multiple ribs are welded and fixed.

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