An external type liquid level meter for a dome-shaped storage tank

Abstract

This utility model discloses an externally mounted level gauge for arc-shaped storage tanks, relating to the field of level gauge technology. It includes a sensor main unit and two sets of sensor housings. An ultrasonic probe is fixedly connected to the top of each sensor housing, and an adsorption component is provided on the outside of the sensor housing to facilitate fitting the arc surface. This externally mounted level gauge for arc-shaped storage tanks is equipped with a positioning ring, an internally threaded connecting ring, an expanding ring, a flat sealing ring, and an arc-shaped magnetic ring. In use, according to the specifications of the storage tank, a connecting ring with the corresponding arc is selected. The connecting ring is then inserted from bottom to top along the bottom of the sensor housing and screwed until the top of the internally threaded connecting ring abuts against the positioning ring. The flat sealing ring is positioned between the positioning ring and the internally threaded connecting ring, increasing the sealing performance. The arc-shaped expanding ring and the arc-shaped magnetic ring fit against the bottom of the storage tank, reducing gaps. This achieves the function of easily adapting to arc surfaces and reducing gaps, solving the problem of devices lacking this function.

Description

Technical Field

[0001] This utility model relates to the field of liquid level gauge technology, specifically to an external liquid level gauge for an arc-shaped storage tank. Background Technology

[0002] External level gauges are installed directly on the outer wall of the container and are a type of non-contact level gauge. They use the principle of sonar echo ranging. Ultrasonic waves are emitted from the level measuring head at the bottom of the container, propagate in the liquid medium inside the tank, and are reflected at the liquid surface to form an echo. The transmitter analyzes and processes the echo signal to obtain the time of echo formation. The liquid level is calculated according to the formula: height (H) = velocity (S) × time (T) / 2.

[0003] Most commonly available external level gauges on the market are similar in overall structure, consisting of a sensor main unit, a level probe, and a calibration probe. The level probe and calibration probe have the same structure but different installation positions. The level probe is installed at the bottom of the container, while the calibration probe is installed on the side of the container. When installed on a curved storage tank, the magnet is usually flat-mouthed. When it fits into the curved storage tank, gaps are likely to appear on both sides, which need to be filled with sealant. The sealing process directly determines the sealing performance of the probe. Furthermore, due to the adhesive process, it is not easy to disassemble later and does not have the function of easily adapting to curved surfaces to reduce gaps.

[0004] Now, a novel external level gauge for arc-shaped storage tanks is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an externally mounted level gauge for arc-shaped storage tanks, in order to solve the problem mentioned in the background art that it does not have the function of easily adapting to the arc surface to reduce gaps.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an externally mounted liquid level gauge for an arc-shaped storage tank, comprising a sensor host and two sets of sensor housings. Two sets of wiring ports are respectively provided on the left and right sides of the sensor host. An ultrasonic probe is fixedly connected to the top of the sensor housing, and a sensor wiring is movably connected to the bottom of the ultrasonic probe. An adsorption component is provided on the outside of the sensor housing to facilitate contact with the arc surface.

[0007] The adsorption assembly includes a positioning ring, which is fixedly connected to the top of the sensor housing. An internally threaded connecting ring is sleeved on the outside of the sensor housing. An outer expansion ring is fixedly connected to the top of the external part of the internally threaded connecting ring. A flat sealing ring is glued to the top of the internally threaded connecting ring. An arc-shaped magnetic ring is fixedly connected to the top of the internal part of the outer expansion ring.

[0008] As a further technical solution of this utility model, the wiring port and the sensor wiring are connected, the outer surface of the sensor housing is threaded, and the thread on the outer surface of the sensor housing matches the thread inside the internal threaded connecting ring.

[0009] As a further technical solution of this utility model, the inner diameter of the planar sealing ring is the same as the outer diameter of the sensor housing, and the bottom end of the planar sealing ring is fitted with the bottom end inside the outer expansion ring.

[0010] As a further technical solution of this utility model, the vertical center lines of the outer expansion ring and the arc-shaped magnetic ring coincide, and the top ends of the outer expansion ring and the arc-shaped magnetic ring are flush.

[0011] As a further technical solution of this utility model, an arc-shaped sealing ring is glued to the top edge of the outer expansion ring. The top of the arc-shaped sealing ring has two sets of annular grooves. The top of the arc-shaped sealing ring and the top of the outer expansion ring have the same curvature. The arc-shaped sealing ring is elastic.

[0012] As a further technical solution of this utility model, side connecting plates are vertically fixedly connected to the left and right sides of the outer expansion ring, and a horizontal support plate is fixedly connected to the bottom end of the side connecting plate. A bubble level is installed inside the top of the horizontal support plate. The horizontal support plates are symmetrically distributed about the vertical center line of the sensor housing, and the tops of the horizontal support plate and the bubble level are flush.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the external liquid level gauge for the arc-shaped storage tank not only realizes the function of easy adaptation to the arc surface and reduction of gaps, but also realizes the function of increasing the sealing of the contact surface, and also realizes the function of installation verticality feedback.

[0014] (1) By setting a positioning ring, an internal threaded connecting ring, an external expansion ring, a flat sealing ring and an arc magnetic ring, when in use, one set of ultrasonic probes is a liquid level probe and the other is a calibration probe. The liquid level probe is installed at the bottom of the arc-shaped storage tank. The internal threaded connecting ring and the external expansion ring form an arc-shaped connecting ring. According to the specifications of the storage tank, select the corresponding arc-shaped connecting ring, put the connecting ring along the bottom of the sensor housing from bottom to top and screw it until the top of the internal threaded connecting ring is pressed against the positioning ring. The flat sealing ring is between the positioning ring and the internal threaded connecting ring to increase the sealing performance. The arc-shaped external expansion ring and the arc magnetic ring fit against the bottom of the storage tank to reduce the appearance of gaps, thus realizing the function of easy adaptation to the arc surface to reduce gaps.

[0015] (2) By setting an arc-shaped sealing ring and an annular groove, when in use, the outer expansion ring of the arc surface fits the bottom of the storage tank, and the arc-shaped sealing ring between the two increases the sealing performance. The annular groove can soften the contact surface between the arc-shaped sealing ring and the storage tank, so that it fits better after deformation. There is no need to apply sealant to increase the airtightness. It is easy to remove later, thus realizing the function of increasing the sealing performance of the contact surface.

[0016] (3) By setting up side connecting plates, horizontal support plates and bubble level, when the liquid level probe is installed at the bottom of the tank, when the probe is directly below the tank, the bubble in the bubble level on both sides of the horizontal support plates is in the center position. When the bubble is deviated, it indicates that it is not installed in the center position, thus realizing the function of installation verticality feedback. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a magnified front view of the sensor housing of this utility model;

[0019] Figure 3 This is an enlarged front view cross-sectional schematic diagram of the internal threaded connecting ring of this utility model;

[0020] Figure 4 This is a top-view enlarged structural diagram of the arc-shaped sealing ring of this utility model;

[0021] Figure 5 This is a top-view enlarged structural diagram of the horizontal support plate of this utility model.

[0022] In the diagram: 1. Sensor main unit; 2. Wiring port; 3. Sensor wiring; 4. Sensor housing; 5. Ultrasonic probe; 6. Positioning ring; 7. Internal threaded connecting ring; 8. External expansion ring; 9. Flat sealing ring; 10. Arc-shaped magnetic ring; 11. Arc-shaped sealing ring; 12. Annular groove; 13. Side connecting plate; 14. Horizontal support plate; 15. Bubble level. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figure 1-5An external level gauge for an arc-shaped storage tank includes a sensor host 1 and two sets of sensor housings 4. Two sets of wiring ports 2 are respectively provided on the left and right sides of the sensor host 1. An ultrasonic probe 5 is fixedly connected to the top of the sensor housing 4, and a sensor wiring 3 is movably connected to the bottom of the ultrasonic probe 5. An adsorption component is provided on the outside of the sensor housing 4 to facilitate contact with the arc surface.

[0025] Please see Figure 1-5 An externally attached liquid level gauge for an arc-shaped storage tank also includes an adsorption assembly. The adsorption assembly includes a positioning ring 6, which is fixedly connected to the top of the sensor housing 4. An internally threaded connecting ring 7 is sleeved on the outside of the sensor housing 4. An outer expansion ring 8 is fixedly connected to the top of the outer side of the internally threaded connecting ring 7. A flat sealing ring 9 is glued to the top of the internally threaded connecting ring 7. An arc-shaped magnetic ring 10 is fixedly connected to the top of the inner side of the outer expansion ring 8.

[0026] The wiring port 2 and sensor wiring 3 are connected. The sensor housing 4 has threads on the outside. The threads on the outside of the sensor housing 4 match the threads inside the internal thread connecting ring 7. The inner diameter of the flat sealing ring 9 is the same as the outer diameter of the sensor housing 4. The bottom end of the flat sealing ring 9 fits with the bottom end inside the outer expansion ring 8. The vertical center lines of the outer expansion ring 8 and the arc magnetic ring 10 coincide. The tops of the outer expansion ring 8 and the arc magnetic ring 10 are flush. It can be replaced to fit the arc-shaped storage tank.

[0027] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the internal threaded connecting ring 7 and the external expansion ring 8 form an arc-shaped connecting ring. According to the specifications of the storage tank, select the connecting ring with the corresponding arc. Put the connecting ring on from bottom to top along the bottom of the sensor housing 4 and screw it until the top of the internal threaded connecting ring 7 is pressed against the positioning ring 6. The flat sealing ring 9 is located between the positioning ring 6 and the internal threaded connecting ring 7 to increase the sealing performance. The arc-shaped external expansion ring 8 and the arc-shaped magnetic ring 10 fit against the bottom of the storage tank to reduce the occurrence of gaps.

[0028] An arc-shaped sealing ring 11 is glued to the top edge of the outer expansion ring 8. The top of the arc-shaped sealing ring 11 has two sets of annular grooves 12. The top of the arc-shaped sealing ring 11 has the same curvature as the top of the outer expansion ring 8. The arc-shaped sealing ring 11 is elastic, which increases the sealing performance of the interface.

[0029] Specifically, such as Figure 3 and Figure 4 As shown, the arc-shaped sealing ring 11 increases the sealing performance, and the annular groove 12 can soften the contact surface between the arc-shaped sealing ring 11 and the storage tank, making it fit better after deformation. There is no need to apply sealant to increase the airtightness, and it is easy to remove later.

[0030] Side connecting plates 13 are vertically fixed to the left and right sides of the outer expansion ring 8, and a horizontal support plate 14 is fixedly connected to the bottom of the side connecting plate 13. A bubble level 15 is installed inside the top of the horizontal support plate 14. The horizontal support plate 14 is symmetrically distributed about the vertical center line of the sensor housing 4. The tops of the horizontal support plate 14 and the bubble level 15 are flush, which makes it easy to observe the verticality of the installation.

[0031] Specifically, such as Figure 1 and Figure 5 As shown, when the probe is directly below the storage tank, the bubble in the bubble level 15 on the two horizontal support plates 14 is in the center position. When the bubble is skewed, it indicates that it is not installed in the center position.

[0032] Working Principle: In use, this invention first employs two sets of ultrasonic probes 5, one for liquid level and the other for calibration. The liquid level probe is installed at the bottom of the arc-shaped storage tank. The internal threaded connecting ring 7 and the external expansion ring 8 form an arc-shaped connecting ring. Based on the tank's specifications, a connecting ring with the corresponding arc is selected. The connecting ring is then inserted from bottom to top along the bottom of the sensor housing 4 and screwed on until the top of the internal threaded connecting ring 7 abuts against the positioning ring 6. The flat sealing ring 9 is positioned between the positioning ring 6 and the internal threaded connecting ring 7, increasing the seal. The arc-shaped external expansion ring 8 and the arc-shaped magnetic ring 10 adhere to the bottom of the storage tank, reducing gaps. The arc-shaped external expansion ring 8 adheres to the bottom of the storage tank, and the arc-shaped sealing ring 11 between them further enhances the sealing performance. The annular groove 12 softens the contact surface between the arc-shaped sealing ring 11 and the storage tank, allowing for a better fit after deformation. This eliminates the need for sealant to increase airtightness and facilitates later removal. As the liquid level probe is installed at the bottom of the storage tank, when the probe is directly below the storage tank, the bubble in the bubble level 15 on the two transverse support plates 14 is in the center position. If the bubble is deviated, it indicates that it is not installed in the center position.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An externally mounted level gauge for an arc-shaped storage tank, comprising a sensor host (1) and two sets of sensor housings (4), characterized in that: The sensor host (1) has two sets of wiring ports (2) on its left and right sides respectively. The top of the sensor housing (4) is fixedly connected to an ultrasonic probe (5). The bottom of the ultrasonic probe (5) is movably connected to a sensor wiring cable (3). The outside of the sensor housing (4) is provided with an adsorption component that is easy to fit the arc surface. The adsorption assembly includes a positioning ring (6), which is fixedly connected to the top of the sensor housing (4). An internal threaded connecting ring (7) is sleeved on the outside of the sensor housing (4). An outer expansion ring (8) is fixedly connected to the top of the external part of the internal threaded connecting ring (7). A flat sealing ring (9) is glued to the top of the internal threaded connecting ring (7). An arc-shaped magnetic ring (10) is fixedly connected to the top of the internal expansion ring (8).

2. The externally mounted level gauge for an arc-shaped storage tank according to claim 1, characterized in that: The wiring port (2) and the sensor wiring (3) are connected. The sensor housing (4) has threads on the outside. The threads on the outside of the sensor housing (4) match the threads inside the internal threaded connecting ring (7).

3. The externally mounted level gauge for an arc-shaped storage tank according to claim 1, characterized in that: The inner diameter of the planar sealing ring (9) is the same as the outer diameter of the sensor housing (4), and the bottom end of the planar sealing ring (9) is in contact with the bottom end inside the outer expansion ring (8).

4. The externally mounted level gauge for an arc-shaped storage tank according to claim 1, characterized in that: The vertical center lines of the outer expansion ring (8) and the arc surface magnetic ring (10) coincide, and the tops of the outer expansion ring (8) and the arc surface magnetic ring (10) are flush.

5. The externally mounted level gauge for an arc-shaped storage tank according to claim 1, characterized in that: An arc-shaped sealing ring (11) is glued to the top edge of the outer expansion ring (8). The top of the arc-shaped sealing ring (11) has two sets of annular grooves (12). The top of the arc-shaped sealing ring (11) has the same curvature as the top of the outer expansion ring (8). The arc-shaped sealing ring (11) is elastic.

6. The externally mounted level gauge for an arc-shaped storage tank according to claim 1, characterized in that: The outer expansion ring (8) is vertically fixed to the left and right sides with side connecting plates (13), and the bottom end of the side connecting plate (13) is fixedly connected to a horizontal support plate (14). A bubble level (15) is installed inside the top of the horizontal support plate (14). The horizontal support plate (14) is symmetrically distributed about the vertical center line of the sensor housing (4). The top ends of the horizontal support plate (14) and the bubble level (15) are flush.

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