Liquid level meter device of liquid nitrogen supply tank

Abstract

The liquid level meter device of the liquid nitrogen supply tank comprises an upper cover, a glass cover, a circuit board, a battery, a base, a liquid level rod connector, a liquid level rod and a magnetic ring, and the base, the upper cover and the glass cover form a cylindrical meter body. A circuit board and a battery are arranged in the base; the battery is connected with the circuit board; the end, opposite to the open end, of the base is in hard connection with the liquid level rod connector through a nut, the liquid level rod connector comprises a transverse connecting rod, a vertical connecting rod, a steering connecting sleeve, a connecting piece and a connecting loop, the rear end of the transverse connecting rod is perpendicularly connected with the top end of the vertical connecting rod, and the steering connecting sleeve is arranged at the joint of the transverse connecting rod and the vertical connecting rod for connection. The front end of the transverse connecting rod is in hard connection with the base, the bottom end of the vertical connecting rod is in loop connection with the liquid level rod, and the vertical connecting rod is sleeved with a connecting piece. And a magnetic ring is arranged on the steering connecting sleeve. According to the utility model, real-time data can be provided, the installation and maintenance are convenient, the downtime is reduced, and the overall working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level gauge technical field especially relates to a liquid nitrogen supply tank liquid level gauge device. BACKGROUND

[0002] Liquid nitrogen is an important low-temperature medium, and is widely used in industry, medical treatment, biology and other fields due to its extremely low temperature (-196 DEG C), strong stability, non-toxicity and non-pollution and other characteristics. In the liquid nitrogen supply process, real-time monitoring and accurate control of the liquid level are critical. These containers are usually used for storing and transporting low-temperature liquids such as liquid nitrogen and liquid oxygen, and accurate monitoring of the liquid level information is directly related to production safety and efficiency. In the prior art, the liquid level control of the liquid nitrogen supply system relies on a simple liquid level sensor, and accurate control and automatic supply of the liquid level cannot be achieved. Moreover, the liquid level detection equipment of the liquid nitrogen supply tank on the market generally has the problems of large size and complex operation, which not only increases the equipment cost, but also brings inconvenience to the operators.

[0003] Therefore, the present application provides a small and light liquid nitrogen supply tank liquid level gauge device with high precision and easy installation and maintenance, which is particularly suitable for the design of special pressure containers such as Dewar bottles. SUMMARY

[0004] The utility model discloses a liquid nitrogen supply tank liquid level gauge device, small and light design, embedded intelligent design, realize real-time, accurate liquid level data acquisition and transmission.

[0005] The utility model discloses a liquid nitrogen supply tank liquid level gauge device, small and light design, embedded intelligent design, realize real-time, accurate liquid level data acquisition and transmission.

[0006] A liquid nitrogen supply tank liquid level gauge device, comprising a top cover, a glass cover, a circuit board, a battery, a base, a liquid level rod connector, a liquid level rod and a magnetic ring, the base is in the shape of a cylinder with one end open, the open end of the base is connected to the top cover, the top cover is in the shape of a ring, and the glass cover is arranged inside the top cover, thereby forming a cylindrical surface body with the base, the top cover and the glass cover; the circuit board and the battery are arranged inside the base, and the battery is connected to the circuit board;

[0007] The end of the base opposite to the open end is hard connected to the liquid level rod connector through a nut, the liquid level rod connector comprises a horizontal connecting rod, a vertical connecting rod, a steering connecting sleeve, a connecting piece and a connecting sleeve, the rear end of the horizontal connecting rod is perpendicularly connected to the top end of the vertical connecting rod, and the steering connecting sleeve is arranged at the connection position of the two, the front end of the horizontal connecting rod is hard connected to the base, the bottom end of the vertical connecting rod is connected to the liquid level rod sleeve, and the connecting piece is sleeved on the vertical connecting rod; the steering connecting sleeve is further provided with the magnetic ring.

[0008] Further, the connecting piece is adjustably arranged on the vertical connecting rod.

[0009] Further, the bottom end of the vertical connecting rod is provided with a connecting sleeve.

[0010] Further, the top end of the liquid level rod is provided with a matching sleeve, the end face of the matching sleeve is provided with an opening, and the matching sleeve is matched and connected with the connecting sleeve.

[0011] Further, the circuit board is provided with a display module.

[0012] Compared with the prior art, the liquid level gauge device has the advantages that:

[0013] The liquid nitrogen supply tank liquid level gauge device has the advantages that: low power consumption, periodic collection of liquid level and display in percentage mode, display of various abnormal states in the running process, presetting of tank body parameters, and relevant configuration according to actual running parameters.

[0014] The liquid nitrogen supply tank liquid level gauge device not only can provide real-time data, but also greatly simplifies installation and maintenance work due to the light design, thereby reducing downtime and improving overall work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an explosion structure schematic view of the utility model.

[0016] Figure 2 It is a partial explosion view of the utility model.

[0017] Figure 3 It is a connection front view of the liquid level rod connector of the utility model.

[0018] In the drawings:

[0019] Upper cover 1, glass cover 2, circuit board 3, battery 4, base 5, liquid level rod connector 6, horizontal connecting rod 6.1, vertical connecting rod 6.2, steering connecting sleeve 6.3, connecting piece 6.4, connecting sleeve 6.5, liquid level rod 7, matching sleeve 7.1, magnetic ring 8, nut 9. DETAILED DESCRIPTION

[0020] In order to better understand the technical scheme of the utility model, the following will be described in detail in combination with relevant drawings. It should be understood that the following specific embodiments are not used to limit the specific implementation manners of the technical scheme of the utility model, and they are only implementation manners that can be adopted by the technical scheme of the utility model. It should be noted that the expressions about the position relationship of each component in this paper, such as that the A component is located above the B component, are based on the expressions about the relative position of each component in the drawings, and are not used to limit the actual position relationship of each component. Embodiment 1

[0021] Referring to Figures 1-3 , Figure 1The utility model discloses a kind of liquid level gauge devices of liquid nitrogen supply tank of the structure schematic diagram of the utility model is drawn.As shown in the drawing, a kind of liquid level gauge device of liquid nitrogen supply tank, including upper cover 1, glass cover 2, circuit board 3, battery 4, base 5, liquid level rod connector 6, liquid level rod 7 and magnetic ring 8, the base 5 is the cylindrical shape of one end opening, the opening end of the base 5 is connected with upper cover 1, the upper cover 1 is annular, glass cover 2 is equipped in the upper cover 1, and the liquid level of display is observed conveniently;Base 5, upper cover 1 and glass cover 2 form the table body of cylindrical shape by this.

[0022] Circuit board 3 and battery 4 are equipped in the base 5, the battery 4 is connected with circuit board 3, and the power supply for circuit board 3 is used;Display module is equipped on the circuit board 3, and the liquid level is displayed;

[0023] The base 5 is hard-connected with liquid level rod connector 6 through nut 9 at the opposite end of opening end, and the liquid level rod connector 6 includes horizontal connecting rod 6.1, vertical connecting rod 6.2, steering connecting sleeve 6.3, connecting piece 6.4 and connecting sleeve 6.5, the rear end of horizontal connecting rod 6.1 is connected with the top end of vertical connecting rod 6.2 vertically, and steering connecting sleeve 6.3 is connected at the connecting place of both, the front end of horizontal connecting rod 6.1 is hard-connected with base 5, the bottom end of vertical connecting rod 6.2 is equipped with connecting sleeve 6.5, connecting piece 6.4 is sleeved on vertical connecting rod 6.2, and connecting piece 6.4 is adjustably arranged on vertical connecting rod 6.2.

[0024] The bottom end of vertical connecting rod 6.2 is connected with liquid level rod 7, the top end of liquid level rod 7 is equipped with matching sleeve 7.1, the end face of matching sleeve 7.1 is opened, matching sleeve 7.1 is matched with connecting sleeve 6.5, connecting sleeve 6.5 is inserted into matching sleeve 7.1, and the connecting place of connecting sleeve 6.5 and matching sleeve 7.1 is fastened by rotating connecting piece 6.4, so as to play the fine adjustment of liquid level rod 7.

[0025] Magnetic ring 8 is also equipped on steering connecting sleeve 6.3.

[0026] Upper cover 1, base 5 and liquid level rod connector 6 are made of lightweight material, such as high-strength plastic or aluminum alloy, so that the whole device is more convenient to carry and install, and at the same time, the additional burden on the container is reduced.

[0027] The connection between upper cover 1, base 5 and liquid level rod connector 6 adopts overall sealing design, has very high protection level, and can work normally in harsh environment;Whether it is a water immersion environment or an extreme temperature change, the overall sealing performance can ensure the stable operation of the equipment, and is not affected by the external environment.

[0028] The line board 3 is pre-provisioned with multiple parameter configurations to meet the use requirements of different media and bottle types, and only needs to select the corresponding pre-provisioned parameters to realize plug and play, thereby greatly reducing the additional manual setting steps and realizing rapid installation.

[0029] Working principle:

[0030] The utility model provides a kind of liquid nitrogen supply tank liquid level meter device, base 5, upper cover 1 and glass cover 2 form the table body of cylinder, and sleeve connection mode is adopted between table body and liquid level rod, unlike traditional rigid fixation or welding mode, this sleeve structure can make liquid level rod be easily aligned and firmly locked in the connecting piece specially made on table body when installing, both ensure the integrity of device, and simplify installation process.

[0031] In the connecting process of liquid level rod and liquid level rod connector, connecting sleeve is inserted into matching sleeve, and by rotating or fastening the connecting piece on liquid level rod connector, connecting sleeve is firmly fixed on liquid level rod, so that liquid level rod can be finely adjusted within a certain range to adapt to accurate alignment under different installation conditions, to ensure the accuracy of measurement.

[0032] Liquid level rod connector and table body are hard connected, and liquid level rod connector adopts L-shaped integrated structure, so that liquid level rod connector not only serves as a connecting bridge, but also can be directly used as a support, eliminating the need for additional support installation and cumbersome welding process, greatly simplifying installation process and improving work efficiency; Hard connection mode ensures the stability of connecting piece when bearing pressure and vibration, thereby ensuring the long-term reliability of equipment.

[0033] The utility model provides zero point calibration and full value calibration function, which can easily complete calibration under extreme temperature or vibration condition; The utility model is easy to operate, only needs to press 10 seconds continuously on the top of meter head or press 10 seconds continuously on the bottom, to calibrate the current liquid level rod parameter as required zero point or full value parameter, this function improves work efficiency, reduces operation difficulty, and ensures the accuracy and reliability of measurement data.

[0034] Zero point calibration operation mode:

[0035] Magnetic ring is close to upper magnetic attraction point;

[0036] Flashing medium;

[0037] Display current capacitance (ensure that magnetic ring triggers all the time during this period, otherwise exit calibration) ;

[0038] Flashing current capacitance (during which the magnetic ring is removed, the calibration is effective, otherwise fail);

[0039] Full value calibration operation mode:

[0040] Magnetic ring close to the lower magnetic attraction point;

[0041] Flashing medium;

[0042] Display current capacitance (during which it is ensured that the magnetic ring is always triggered, otherwise exit calibration);

[0043] Flashing current capacitance (during which the magnetic ring is removed, the calibration is effective, otherwise fail).

[0044] The above is only a specific application example of the utility model, and does not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.

Claims

1. A liquid nitrogen supply tank level gauge device, characterized in that: The device includes a top cover (1), a glass cover (2), a circuit board (3), a battery (4), a base (5), a liquid level rod connector (6), a liquid level rod (7), and a magnetic ring (8). The base (5) is a cylindrical shape with one end open. The open end of the base (5) is connected to the top cover (1). The top cover (1) is annular. The glass cover (2) is provided inside the top cover (1). Thus, the base (5), the top cover (1), and the glass cover (2) form a cylindrical body. The circuit board (3) and the battery (4) are provided inside the base (5). The battery (4) is connected to the circuit board (3). The base (5) is rigidly connected to the liquid level rod connector (6) at one end opposite to the opening end by a nut (9). The liquid level rod connector (6) includes a horizontal connecting rod (6.1), a vertical connecting rod (6.2), a steering connecting sleeve (6.3), a connector (6.4), and a connecting loop (6.5). The rear end of the horizontal connecting rod (6.1) and the top end of the vertical connecting rod (6.2) are vertically connected. A steering connecting sleeve (6.3) is provided at the connection point between the two. The front end of the horizontal connecting rod (6.1) is rigidly connected to the base (5). The bottom end of the vertical connecting rod (6.2) is loosely connected to the liquid level rod (7). A connector (6.4) is sleeved on the vertical connecting rod (6.2). The steering connecting sleeve (6.3) is also provided with a magnetic ring (8).

2. The liquid nitrogen supply tank level gauge device according to claim 1, characterized in that: The connector (6.4) is adjustablely mounted on the vertical connecting rod (6.2).

3. The liquid nitrogen supply tank level gauge device according to claim 1, characterized in that: The bottom end of the vertical connecting rod (6.2) is provided with a connecting sleeve (6.5).

4. The liquid nitrogen supply tank level gauge device according to claim 2, characterized in that: The liquid level rod (7) has a matching sleeve (7.1) at its top end. The end face of the matching sleeve (7.1) is open. The matching sleeve (7.1) is matched and connected to the connecting sleeve (6.5).

5. The liquid nitrogen supply tank level gauge device according to claim 1, characterized in that: The circuit board (3) is equipped with a display module.

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