Storage tank liquid level detection equipment

Abstract

The utility model provides storage tank liquid level detection equipment. The storage tank liquid level detection equipment comprises a storage tank, an interface flange, a fixing rod and at least two duckbilled liquid level switches, two mounting holes for fixing the duckbilled liquid level switch are formed in the fixing rod at intervals in the length direction; an opening is formed in the upper surface of the storage tank, the interface flange is fixed to the opening, and a receding hole for the fixing rod to penetrate through is formed in the interface flange, so that when the interface flange is fixed to the opening, the fixing rod extends downwards in the height direction of the storage tank. According to the liquid level detection equipment for the storage tank, liquid level measurement of different heights is achieved through low cost.

Description

Technical Field

[0001] The utility model relates to a storage tank liquid level detection device. Background Art

[0002] At present, the types of domestic tank level detection switches can be divided into radar level gauges, ultrasonic level gauges, side-mounted float level switches, and infrared non-contact level switches. Among them, although the performance of radar level gauges and ultrasonic level gauges is good, the price cost is high. If the function of detecting the high and low liquid levels of the tank is met, using these two level gauges is undoubtedly overkill. Although the infrared non-contact level switch is cheap, its use effect is always unsatisfactory and it is easy to malfunction. In general, whether in terms of cost or stability of use, the side-mounted float level switch is a more suitable choice, but the ordinary side-mounted float level switch can only detect one height of the liquid level, and each installation requires a flange to be installed on the side of the tank. If you want to measure multiple liquid level heights of the same tank, you need to install multiple flanges, which is difficult to implement. Utility Model Content

[0003] The main technical problem to be solved by the utility model is to provide a storage tank liquid level detection device, which can realize liquid level measurement at different heights at a relatively low cost.

[0004] In order to solve the above technical problems, the utility model provides a storage tank liquid level detection device, including: a storage tank, an interface flange, a fixing rod and at least two duckbill type liquid level switches;

[0005] The fixing rod is provided with two mounting holes for fixing the duckbill type liquid level switch at intervals along the length direction;

[0006] The upper surface of the storage tank is provided with an opening, the interface flange is fixed on the opening, and the interface flange is provided with a clearance hole for the fixing rod to pass through, so that when the interface flange is fixed to the opening, the fixing rod extends downward along the height direction of the storage tank.

[0007] In a preferred embodiment: the mounting hole is a threaded hole.

[0008] In a preferred embodiment: a liquid level switch cable is passed through the fixing rod to lead the signal of the duckbill liquid level switch to the outside of the storage tank through the cable.

[0009] In a preferred embodiment: the duckbill liquid level switch is sealed and connected to the mounting hole.

[0010] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0011] 1. The utility model provides a storage tank liquid level detection device, which only needs a flange interface and a fixing rod to measure liquid levels of different heights according to needs. The flange interface and the fixing rod are both made of non-metallic PP material, which is light in weight and reduces the difficulty of installation.

[0012] 2. The utility model provides a tank liquid level detection device. The PP material has outstanding corrosion resistance and can effectively resist harsh environments. The fixed rod is a closed space, which can ensure that the cable of the duckbill liquid level switch is not affected by the liquid in the tank, thereby improving reliability.

[0013] 3. The utility model provides a storage tank liquid level detection device. The cost of a duckbill liquid level switch is only a dozen yuan. Even if multiple liquid levels need to be measured, the cost can still be controlled within a relatively low range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a preferred embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of a duckbill type liquid level switch in a preferred embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the fixing rod and the interface flange in the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0020] refer to Figure 1-Figure 3 , this embodiment provides a storage tank liquid level detection device, including: a storage tank 1, an interface flange 2, a fixing rod 3 and at least two duckbill type liquid level switches 4;

[0021] The fixing rod 3 is provided with two mounting holes for fixing the duckbill type liquid level switch 4 at intervals along the length direction;

[0022] The upper surface of the storage tank 1 is provided with an opening, the interface flange 2 is fixed on the opening, and the interface flange 2 is provided with a clearance hole for the fixing rod 3 to pass through, so that when the interface flange 2 is fixed to the opening, the fixing rod 3 extends downward along the height direction of the storage tank 1.

[0023] In this embodiment, the mounting hole is a threaded hole. The threaded interface of the duckbill liquid level switch 4 and the mounting hole are sealed by threads, which can prevent the liquid in the storage tank 1 from entering the fixing rod 3, thereby causing the liquid level switch cable 5 inserted in the fixing rod 3 to be damaged by water. The liquid level switch cable 5 is used to lead the signal of the duckbill liquid level switch 4 to the outside of the storage tank 1 through the cable. In this way, the duckbill liquid level switch 4 is connected to the host computer, and the collected liquid level signal is sent to the host computer.

[0024] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A tank liquid level detection device, characterized in that include: storage tank, interface flange, fixing rod and at least two duckbill type level switches; The fixing rod is provided with two mounting holes for fixing the duckbill type liquid level switch at intervals along the length direction; The upper surface of the storage tank is provided with an opening, the interface flange is fixed on the opening, and the interface flange is provided with a clearance hole for the fixing rod to pass through, so that when the interface flange is fixed to the opening, the fixing rod extends downward along the height direction of the storage tank.

2. A tank liquid level detection device according to claim 1, characterized in that: The mounting hole is a threaded hole.

3. A tank liquid level detection device according to claim 1, characterized in that: A liquid level switch cable is passed through the fixing rod and is used to lead the signal of the duckbill type liquid level switch to the outside of the storage tank through the cable.

4. A tank liquid level detection device according to claim 1, characterized in that: The duckbill type liquid level switch is sealed and connected to the mounting hole.

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