Flange liquid level transmitter installed in non-contact mode

Abstract

The utility model discloses a non-contact installation flange liquid level transmitter which comprises an ultrasonic liquid level transmitter, the ultrasonic liquid level transmitter is connected with an adapter through threads, the lower portion of the adapter is connected with a connecting pipe, the upper portion of the adapter is in flange connection with a widening plate, the lower portion of the widening plate is provided with a hydraulic damping rod, and the hydraulic damping rod is connected with the connecting pipe. The lower portion of the hydraulic damping rod is fixedly connected with an arc-shaped plate, and the outer side of the ultrasonic liquid level transmitter is sleeved with a sleeve. And by arranging the hydraulic damping rods, the arc-shaped plates and other structures, vibration generated when fluid passes through can be effectively absorbed, and the problem of connection looseness or leakage caused by vibration is solved. According to the ultrasonic liquid level transmitter, the stability and the sealing performance can be better kept in the long-time use process, so that the measurement precision is improved, the bent rod penetrates through the rectangular hole and is fixed through the locking bolt, it is guaranteed that the ultrasonic liquid level transmitter cannot fall off due to rotation or other external force in the operation process, and the safety and the reliability of equipment are improved.

Description

Technical Field

[0001] This utility model relates to level transmitters, and more specifically, to a flange level transmitter with non-contact installation. Background Technology

[0002] A level transmitter calculates the current liquid level based on the pressure sensing principle by measuring the change in pressure of the liquid's density gauge.

[0003] Traditional single-flange level transmitters, once installed, will vibrate when fluid passes through them. Over time, this can cause the flange connection to loosen, leading to leakage and affecting measurement accuracy.

[0004] Existing level transmitters, such as the single-flange level transmitter disclosed in Chinese Utility Model Publication No. CN219455235U, include a single-flange level transmitter body. A fixed frame is fixedly connected to the bottom of the single-flange level transmitter body, and a hanging slide is fixedly connected to the bottom of the single-flange level transmitter body. A threaded rod with one end penetrating through and extending to the left side of the fixed frame is connected to the right bearing of the fixed frame. A threaded block is threadedly connected to the outer side of the threaded rod. The top of the threaded block is slidably connected to the hanging slide. A movable frame is fixedly connected to the bottom of the threaded block. A connecting frame is fixedly connected to the left side of the movable frame, and a damping friction assembly is fixedly connected to the left side of the connecting frame.

[0005] Although the aforementioned patent can provide support, its shock absorption performance is poor, and it cannot prevent the level transmitter from falling off due to rotation. Utility Model Content

[0006] One objective of this invention is to provide a new technical solution for a contactless flange level transmitter.

[0007] According to a first aspect of this utility model, a contactless flange level transmitter is provided, comprising an ultrasonic level transmitter, wherein the ultrasonic level transmitter is connected to a connecting pipe via a threaded connection, a connecting pipe is connected to the lower part of the connecting pipe, a widening plate is connected to the upper flange of the connecting pipe, a hydraulic damping rod is installed on the lower part of the widening plate, an arc-shaped plate is fixedly connected to the lower part of the hydraulic damping rod, a sleeve is fitted on the outer side of the ultrasonic level transmitter, a bent rod is fixedly connected to the sleeve, a rectangular hole for the bent rod to pass through is provided on the widening plate, and a locking bolt is installed on the widening plate.

[0008] Ultrasonic level transmitters measure liquid level non-contactly by emitting and receiving ultrasonic waves. The transmitter contains a transmitter and receiver, capable of sending ultrasonic pulses to the liquid surface and receiving the reflected signals. The distance to the liquid surface is calculated based on the round-trip time difference, thus determining the liquid level. This non-contact measurement principle makes ultrasonic level transmitters suitable not only for conventional liquid media but also for special liquid environments such as corrosive, viscous, or high-temperature and high-pressure conditions.

[0009] Optionally, the upper part of the arc-shaped plate is provided with a circular groove, a pressure plate is welded to the arc-shaped plate, a lower flange is fixedly connected to the connecting pipe, and a pressure groove is opened on the lower flange.

[0010] Optionally, the lower part of the ultrasonic level transmitter is fixedly connected with several clamping plates, the sleeve is provided with several clamping slots, and the ultrasonic level transmitter is provided with a display screen and a waterproof cover.

[0011] Optionally, the stroke rod of the hydraulic damping rod is fixedly connected to the widening plate, and the ultrasonic level transmitter is provided with wiring terminals.

[0012] Optionally, an arc-shaped connecting part is welded to the widened plate, and a rubber pad is adhered to the lower part of the arc-shaped plate.

[0013] Optionally, the ultrasonic level transmitter is fixedly connected to an annular hand-tightening part, and the annular hand-tightening part is provided with a strip groove.

[0014] Optionally, an annular plate is fixedly connected to the lower part of the annular hand-tightening part, and a sealing ring is provided between the annular plate and the upper flange.

[0015] Optionally, the number of widening plates is set to two, the number of bending rods is set to four, the widening plates are provided with screw holes communicating with rectangular holes, and the hydraulic damping rods are fitted with springs.

[0016] According to one embodiment of this disclosure, the following beneficial effects are achieved:

[0017] 1. By incorporating hydraulic damping rods and arc-shaped plates, the design effectively absorbs vibrations generated when fluid passes through, preventing loose connections or leaks caused by vibration. This invention maintains stability and sealing better during prolonged use, thereby improving measurement accuracy.

[0018] 2. The design of the curved plate and the widened plate, as well as the method of the bent rod passing through the rectangular hole and being fixed by the locking bolt, ensure that the ultrasonic level transmitter will not fall off due to rotation or other external forces during operation, thus improving the safety and reliability of the equipment.

[0019] 3. This utility model combines the non-contact measurement principle of ultrasonic level transmitters, and is not only suitable for conventional liquid media, but also for special liquid environments such as corrosive, viscous or high temperature and high pressure, and has high versatility and adaptability.

[0020] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of a contactless flange level transmitter in one embodiment.

[0023] Figure 2 This is a schematic diagram of the arc plate structure of a contactless flange level transmitter in one embodiment;

[0024] Figure 3 This is a schematic diagram of the arc-shaped connection structure of a contactless flange level transmitter in one embodiment;

[0025] Figure 4 This is a schematic diagram of the sleeve structure of a contactless flange level transmitter in one embodiment.

[0026] The diagram shows the following: 1. Terminal block; 2. Bent rod; 3. Widening plate; 4. Hydraulic damping rod; 5. Arc plate; 6. Lower flange; 7. Rubber gasket; 8. Connecting pipe; 9. Adaptor pipe; 10. Ultrasonic level transmitter; 11. Waterproof cover; 12. Upper flange; 13. Sleeve; 14. Spring; 15. Display screen; 16. Annular hand-tightening part; 17. Annular plate; 18. Rectangular hole; 19. Locking bolt; 20. Travel rod; 21. Pressure groove; 22. Pressure plate; 23. Circular groove; 24. Arc-shaped connection part; 25. Slot; 26. Clamping plate. Detailed Implementation

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0029] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0030] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0031] like Figure 1-4 As shown, a contactless flange level transmitter includes an ultrasonic level transmitter 10. The ultrasonic level transmitter 10 is connected to a connecting pipe 9 via a thread. The connecting pipe 9 has an internal thread, and the rod of the ultrasonic level transmitter 10 has an external thread. The ultrasonic level transmitter 10 measures the liquid level by emitting and receiving ultrasound, thus eliminating the need for contact with the liquid.

[0032] The lower part of the transfer pipe 9 is connected to the connecting pipe 8 for connecting to the liquid storage tank. The upper flange 12 of the transfer pipe 9 is connected to the widening plate 3. The lower part of the widening plate 3 is equipped with a hydraulic damping rod 4. A spring 14 is sleeved on the hydraulic damping rod 4. The two work together to reduce shock.

[0033] The lower part of the hydraulic damping rod 4 is fixedly connected to an arc plate 5, and a rubber pad 7 is glued to the lower part of the arc plate 5 to increase friction and reduce shock. The outer side of the ultrasonic level transmitter 10 is fitted with a sleeve 13, and a bent rod 2 is fixedly connected to the sleeve 13. A rectangular hole 18 is opened on the widened plate 3 for the bent rod 2 to pass through. The sleeve 13 supports the head of the ultrasonic level transmitter 10, and the bent rod 2 can prevent it from rotating due to liquid flow. A screw hole communicating with the rectangular hole 18 is opened on the widened plate 3, and a locking bolt 19 is installed on the widened plate 3. The locking bolt 19 is used to press and fix the bent rod 2. The locking bolt 19 is a spring bolt, which can play a role in preventing loosening.

[0034] The upper part of the arc plate 5 is provided with a circular groove 23 for fixed connection with the end of the hydraulic damping rod 4. A pressure plate 22 is welded on the arc plate 5, and a lower flange 6 is fixedly connected to the connecting pipe 8. The pressure plate 22 can press down on the lower flange 6 to prevent it from moving. A pressure groove 21 is opened on the lower flange 6, and the pressure plate 22 can be inserted into the inside of the pressure groove 21.

[0035] The lower part of the ultrasonic level transmitter 10 is fixedly connected with several clamping plates 26, and the sleeve 13 is provided with several clamping slots 25. The clamping plates 26 can be inserted into the inside of the clamping slots 25 to prevent the ultrasonic level transmitter 10 from rotating. The ultrasonic level transmitter 10 is provided with a display screen 15 and a waterproof cover 11.

[0036] The stroke rod 20 of the hydraulic damping rod 4 is fixedly connected to the widening plate 3. The ultrasonic level transmitter 10 is equipped with a wiring terminal 1. The ultrasonic level transmitter 10 can convert the level signal into a current signal and output it.

[0037] An arc-shaped connecting part 24 is welded onto the widened plate 3 for connecting with the upper flange 12.

[0038] An annular hand-tightening part 16 is fixedly connected to the ultrasonic level transmitter 10. The annular hand-tightening part 16 has a strip groove, which can increase the friction during installation and disassembly.

[0039] The lower part of the annular hand-tightening part 16 is fixedly connected to an annular plate 17, and a sealing ring is provided between the annular plate 17 and the upper flange 12 to play a waterproof sealing role.

[0040] The number of widened plates 3 is set to two, and the number of bent rods 2 is set to four.

[0041] The aforementioned contactless flange level transmitter, specifically the ultrasonic level transmitter 10, measures liquid level non-contactly by emitting and receiving ultrasonic waves. The transmitter contains a transmitter and a receiver, capable of sending ultrasonic pulses to the liquid surface and receiving the reflected signals. The distance to the liquid surface is calculated based on the round-trip time difference of the signal, thus determining the liquid level.

[0042] The adapter tube 9 has internal threads, while the rod of the ultrasonic level transmitter 10 has external threads; the two are connected by these threads. This design not only facilitates installation and disassembly but also ensures a secure connection. The connecting tube 8 is attached to the lower part of the adapter tube 9 to secure the entire device to the liquid storage tank, allowing the ultrasonic level transmitter 10 to be aimed at the target liquid for measurement.

[0043] The widened plate 3 is connected to the transfer pipe 9 via the upper flange 12, and a hydraulic damping rod 4 is installed at its lower part, with a spring 14 fitted onto the hydraulic damping rod 4. The combined use of these two components can absorb vibrations during fluid flow, reduce errors caused by vibrations, and protect the equipment from damage.

[0044] The arc-shaped plate 5 is fixed to the lower part of the hydraulic damping rod 4, and a rubber pad 7 is glued to its bottom, which not only increases the friction but also further enhances the shock absorption effect.

[0045] The sleeve 13 is fitted over the ultrasonic level transmitter 10 to support the head and prevent rotation due to liquid flow. The bent rod 2 is fixed to the sleeve 13 and passes through the rectangular hole 18 on the widened plate 3, and is fixed by the locking bolt 19 to prevent rotation due to vibration or external factors.

[0046] The locking bolt 19 adopts a spring bolt design, which can effectively prevent loosening due to long-term use and ensure that the position of the bent rod 2 remains fixed.

[0047] The design of the clamping plate 26 and the clamping slot 25 allows the ultrasonic level transmitter 10 to be firmly fixed in the sleeve 13, preventing rotation or sliding.

[0048] The annular hand-tightening part 16 has a groove to increase friction during installation and disassembly, making it easier to operate. A sealing ring is provided between the lower fixed annular plate 17 and the upper flange 12 to ensure that the whole device has good waterproof performance and prevent moisture from entering and affecting the operation of internal electronic components.

[0049] The ultrasonic level transmitter 10 converts the detected level information into an electrical signal output through the terminal block 1, which is then processed by the subsequent system or displayed on the display screen 15.

[0050] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A contactless flange level transmitter, comprising an ultrasonic level transmitter (10), characterized in that: The ultrasonic level transmitter (10) is connected to a connecting pipe (9) via a threaded connection. The lower part of the connecting pipe (9) is connected to a connecting pipe (8). The upper flange (12) of the connecting pipe (9) is connected to a widening plate (3). A hydraulic damping rod (4) is installed on the lower part of the widening plate (3). An arc plate (5) is fixedly connected to the lower part of the hydraulic damping rod (4). A sleeve (13) is fitted on the outer side of the ultrasonic level transmitter (10). A bent rod (2) is fixedly connected to the sleeve (13). A rectangular hole (18) for the bent rod (2) to pass through is opened on the widening plate (3). A locking bolt (19) is installed on the widening plate (3).

2. The contactless flange level transmitter according to claim 1, characterized in that: The upper part of the arc plate (5) is provided with a circular groove (23), and a pressure plate (22) is welded on the arc plate (5). A lower flange (6) is fixedly connected to the connecting pipe (8), and a pressure groove (21) is opened on the lower flange (6).

3. The contactless flange level transmitter according to claim 1, characterized in that: The lower part of the ultrasonic level transmitter (10) is fixedly connected with several clamping plates (26), and the sleeve (13) is provided with several clamping slots (25). The ultrasonic level transmitter (10) is provided with a display screen (15) and a waterproof cover (11).

4. A contactless flange level transmitter according to claim 1, characterized in that: The stroke rod (20) of the hydraulic damping rod (4) is fixedly connected to the widening plate (3), and the ultrasonic level transmitter (10) is provided with a wiring terminal (1).

5. A contactless flange level transmitter according to claim 1, characterized in that: An arc-shaped connecting part (24) is welded on the widened plate (3), and a rubber pad (7) is glued to the lower part of the arc-shaped plate (5).

6. A contactless flange level transmitter according to claim 1, characterized in that: The ultrasonic level transmitter (10) is fixedly connected to an annular hand-tightening part (16), and the annular hand-tightening part (16) is provided with a strip groove.

7. A contactless flange level transmitter according to claim 6, characterized in that: The lower part of the annular hand-tightening part (16) is fixedly connected to an annular plate (17), and a sealing ring is provided between the annular plate (17) and the upper flange (12).

8. A contactless flange level transmitter according to claim 1, characterized in that: The number of the widening plate (3) is set to two, the number of the bending rod (2) is set to four, the widening plate (3) is provided with a screw hole communicating with the rectangular hole (18), and the hydraulic damping rod (4) is fitted with a spring (14).

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