Novel corrosion-resistant floating ball type liquid level switch for acid loading of sulfuric acid tank truck

Abstract

The utility model discloses a novel corrosion-resistant floating ball type liquid level switch for acid loading of a sulfuric acid tank truck, which comprises a floating ball sleeve, the floating ball sleeve is fixed on an acid loading arm through a first ribbon and a second ribbon, a floating ball is inserted into the floating ball sleeve, a liquid level meter is fixed through a sealing funnel of an acid loading port, and a signal line is led out through a binding post. The floating ball is tightly sleeved with a pure polytetrafluoroethylene outer sleeve and a floating ball sleeve, and the bottom of the floating ball outer sleeve is open. According to the utility model, the full automation and intelligentization of the acid loading process of the automobile tank car can be realized, the accuracy of the liquid level is improved, and meanwhile, the accidents of concentrated acid leakage, environmental pollution and the like caused by the short circuit of the tuning fork liquid level meter due to the corrosion of the tuning fork (metal) caused by sulfuric acid mist, the short service life of the tuning fork and the sulfuric acid mist generated during acid loading can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level measurement switch technical field, concretely is a novel corrosion -resistant float ball type liquid level switch for sulfuric acid automobile tank car loading acid. BACKGROUND

[0002] Concentrated sulfuric acid is a strong mineral acid with high corrosivity, chemical formula is H2SO4. It has strong oxidizing property, difficult volatility, dehydration, strong acidity, water absorption (commonly known as carbonization, namely corrosivity) and other special properties. Industrial sulfuric acid automobile tank car loading operation has great risk, in the industrial sulfuric acid automobile tank car loading, in order to ensure the safety of loading, avoid personnel injury, need to reduce manual operation, as far as possible realize the automation of loading acid, intelligent. At the same time, in order to reach 100% pass rate of automobile tank car loading acid, reach the relevant requirements of highway transportation, need to ensure the accuracy of liquid level when loading acid.

[0003] The traditional tuning fork type liquid level meter for sulfuric acid automobile tank car loading acid needs to be observed by personnel with naked eyes in use, there is great safety hazard, meanwhile, the tuning fork is easy to be corroded by sulfuric acid mist when loading, the service life of the tuning fork is short, the sulfuric acid mist generated when loading acid causes the short circuit of the tuning fork liquid level meter, which is easy to cause sulfuric acid leakage and other accidents. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the deficiencies in the prior art, providing a novel corrosion -resistant float ball type liquid level switch for sulfuric acid automobile tank car loading acid, which can realize full automation and intelligentization during the loading acid process of the automobile tank car, improve the accuracy of the liquid level when loading acid, and can avoid the corrosion of the electrode by the sulfuric acid mist during loading, the short service life of the tuning fork, the short circuit of the tuning fork liquid level meter caused by the sulfuric acid mist during loading acid, and accidents such as sulfuric acid leakage.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] A novel corrosion -resistant float ball type liquid level switch for sulfuric acid automobile tank car loading acid, including the float ball sleeve, the float ball sleeve is fixed on the loading acid crane pipe through the first cable tie and the second cable tie, the float ball type liquid level switch is inserted into the sleeve, the float ball is fixed through the sealing hopper of loading port, the signal line is led out through the binding post, the float ball is tightly sleeved with the float ball outer cover, the float ball sleeve and the float ball outer cover bottom are open.

[0007] Preferably, the float ball sleeve is a tubular structure.

[0008] Preferably, the lower part of the float ball sleeve is circular in shape.

[0009] Preferably, from the radial upper end to the radial lower end, the first cable tie (3) and the second cable tie (4) are respectively bound at the 4 / 5-8 / 10 position of the lower part length of the loading acid crane pipe (5).

[0010] The beneficial effects of this utility model are as follows: By designing a float jacket, this utility model can effectively prevent the liquid level gauge switch from being corroded by sulfuric acid mist during loading. Tuning fork liquid level gauges (made of metal) have a short service life, and sulfuric acid mist generated during acid loading can cause short circuits in the tuning fork liquid level gauge, which can easily lead to accidents such as sulfuric acid leakage. This utility model uses an intelligent control corrosion-resistant float to measure sulfuric acid during loading, replacing manual visual observation, which can effectively prevent errors caused by human judgment and serious consequences. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] In the diagram: 1. Float sleeve, 2. Sealing funnel, 3. First cable tie, 4. Second cable tie, 5. Acid loading arm, 6. Float, 7. Signal line. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] like Figure 1 The present invention relates to a novel corrosion-resistant electrode-type liquid level switch for loading sulfuric acid into a tank truck, comprising an electrode sleeve (1) with a sealed funnel (2) on the upper wall. The sealed funnel (2) and the upper wall of the electrode sleeve (1) are provided with two cable ties, and the first cable tie (3) and the second cable tie (4) are respectively tied to the loading arm (5). The upper parts of the first cable tie (3) and the second cable tie (4) are respectively located at the lower part of the loading arm (5). The sealed funnel (2) is fixed on the loading arm (5). A float level gauge (6) is tightly fitted inside the float sleeve (1). The float level gauge (6) has a terminal block on its upper part to facilitate the transmission of electrical signals through a signal cable (7). The bottom of the float sleeve (1) is open.

[0015] This utility model is implemented as follows: the original tuning fork level gauge is improved. According to the specifications and dimensions of the float level gauge 6, the float sleeve 1 is installed on the acid loading arm 5 to avoid corrosion of the tuning fork and extend the service life of the level gauge. At the same time, it can effectively prevent sulfuric acid mist from causing short circuits in the tuning fork during sulfuric acid truck loading, resulting in false levels and sulfuric acid leakage accidents, ensuring a high qualification rate for sulfuric acid truck loading. The entire float sleeve 1 and float level gauge (6) are made of pure PTFE material, and the float level gauge 6 is fixed on the float sleeve 1. The upper part of the float is equipped with a terminal block for easy electrical wiring. The float sleeve 1 is made of pure PTFE material. The structure of this two-wire submersible float level gauge consists of a special air-conducting cable with a built-in capillary hose, a pressure-resistant connector, and a probe. The probe of the submersible float level gauge is a stainless steel core with a diaphragm at the bottom, and is covered by a perforated pure PTFE shell (not shown). Liquid level measurement is actually the difference between the static pressure of the liquid on the probe and the actual atmospheric pressure. Then, a ceramic sensor (attached to a stainless steel film) and electronic components convert this pressure difference into a 4~20mA output signal to achieve the purpose of liquid level measurement.

[0016] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. It is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel corrosion-resistant float-type liquid level switch for sulfuric acid tanker trucks, comprising a float sleeve (1), characterized in that, The float sleeve (1) has a tubular structure, and the lower part of the float sleeve (1) is circular. The upper wall of the float sleeve (1) is connected to a sealing funnel (2). The sealing funnel (2) and the upper wall of the float sleeve (1) are provided with two cable ties, and the first cable tie (3) and the second cable tie (4) are respectively tied to the acid loading arm (5). The upper parts of the first cable tie (3) and the second cable tie (4) are respectively at the lower part of the acid loading arm (5). The sealing funnel (2) is fixed on the acid loading arm (5). The float level gauge (6) is tightly fitted inside the float sleeve (1). From the upper radial end to the lower radial end, the first cable tie (3) and the second cable tie (4) are respectively tied at positions 4 / 5-8 / 10 of the lower length of the acid loading arm (5). The float level gauge (6) has a wiring terminal on the upper part, which facilitates the transmission of electrical signals through the signal cable (7). The bottom of the float sleeve (1) is open.

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